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津島文彦

徳島大学

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2026年8月14日更新

職名: 教授
電話: 0886337352
電子メール: tsushima.fumihiko@tokushima-u.ac.jp
学歴: 研究者総覧に該当データはありませんでした。
学位: 博士 / 博士(歯学) (東京医科歯科大学) (2003年3月)
職歴・経歴: 2025/10: 徳島大学教授, 大学院医歯薬学研究部

専門分野・研究分野: 研究者総覧に該当データはありませんでした。

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2026年8月14日更新

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担当経験のある授業科目: 口腔と健康 (共通教育)
口腔内科各論1 (学部)
口腔内科各論2 (学部)
口腔内科学 (大学院)
口腔内科学演習 (大学院)
口腔内科総論 (学部)
口腔機能再建学実験実習 (大学院)
実践口腔科学実習 (大学院)
統合医療実験・実習 (大学院)
統合医療演習 (大学院)
臨床心理学 (大学院)
指導経験: 1人 (博士)

研究者総覧で最新データを確認する

2026年8月14日更新

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著書

樺沢勇司, 澁井武夫, 高田訓, 原田浩之, 津島文彦, 宮坂孝弘, 鎌谷宇明, 柳本惣市, 深澤健司, 戸谷収二, 志茂剛, 吉岡泉, 野間昇, 野村武史, 白鳥たかみ, 江口貴子, 前田茂, 松浦信幸, 樋口仁, 山口秀紀, 野杁明美, 讃岐拓郎, 酒巻裕之, 菅野亜紀, 大屋朋子, 池上由美子 :
野村武史・松浦信幸・升井一朗・白鳥たかみ・水上美樹(編) 『歯科衛生学シリーズ口腔外科学・歯科麻酔学第2版』, --- 口腔粘膜疾患第4章 43-69 ---,
医歯薬出版株式会社, 東京, 2025年1月. 道泰之, 生田稔, 富岡寛文, 津島文彦, 及川悠, 黒嶋雄志, 釘本琢磨, 大迫利光, 丸川恵理子, 佐藤昌, 中島雄介, 樋口佑輔 :
原田浩之(編著)『必ず上達シリーズ必ず上達歯科小手術』, --- 普通抜歯・難抜歯，埋伏智歯抜歯第2章(1)42-51 ---,
クインテッセンス出版株式会社, 東京, 2024年3月.

論文

Naoto Nishii, Fumihiko Tsushima, Jinkyo Sakurai, Yuya Su, Naoya Kinoshita, Yu Oikawa, Yosuke Hirotsu, Toshimitsu Ohsako, Emi Furusawa-Nishii, Masao Omata and Hiroyuki Harada :
TCR repertoire analysis reveals predominant local clonal expansion of T cells with minimal circulation in oral lichenoid contact lesions,
Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology, 38, 1, 146-157, 2026.

(キーワード): Dental metal / Next-generation sequencing / Oral lichen planus / Oral lichenoid contact lesion / T-cell receptor repertoire
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.ajoms.2025.08.005
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-105014294457

(DOI: 10.1016/j.ajoms.2025.08.005, Elsevier: Scopus) Yuya Su, Ryo Ouchi, Pissacha Daroonpan, Miwako Hamagaki, Tohru Ikeda, Noji Rika, Naoto Nishii, Fumihiko Tsushima, Yoshihito Kano, Takahiro Asakage, Makoto Noguchi, Hiroyuki Harada and Miyuki Azuma :
Stratification of the immunotypes of tongue squamous cell carcinoma to improve prognosis and the response to immune checkpoint inhibitors,
Cancer Immunology, Immunotherapy, 74, 4, 130, 2025.

(要約): An understanding of the tumor immune microenvironment is required to improve treatment, especially the selection of immune checkpoint inhibitors (ICIs). In this study, we stratified the immunotypes of tongue squamous cell carcinoma (TSCC) based on the results of comprehensive immune profiling. We enrolled 87 therapy-naïve TSCC and 17 ICI-treated TSCC patients who underwent glossectomy without any other prior therapy. Comprehensive immune profile analyses employed multiplex immunofluorescence and tissue imaging. Based on the hierarchies of 58 immune parameters and the spatial distances between cytotoxic T lymphocytes (CTL) and tumor cells, we stratified five immunotypes: Immunoactive type I, border type II, immunosuppressed type III, immunoisolating type IV, and immunodesert type V. The type I frequency was only 16%. Most TSCCs (~ 70%) were of types III-V. The CTL density (CTL-D) was closely correlated with the PD-L1⁺ pan-macrophages (panM)-D, and the panM-D closely correlated with the PD-1⁺ CTL-D. This indicated that PD-1 and PD-L1 expression required macrophages and CTL recruitment in the tumor microenvironment. No ICI-treated TSCC patients, all of whom were recurrent/metastatic cases, were of the type I immunotype, and almost half (47.0%) were of the immunodesert type V. Most cases exhibited an imbalance between T-cell PD-1 and macrophage PD-L1 expression. We defined five TSCC-specific immunotypes based on the results of comprehensive immune profiling analyses. Immunoactive type, which would be sensitive to ICI monotherapy, was rare, and most TSCC cases exhibited immune-regulated immunotypes. Immunotype-based personalized treatments are required to improve clinical outcomes.
(キーワード): Immune checkpoint inhibitor / 免疫療法 (immunotherapy) / Immunotypes / Oral cancer / Tumor microenvironment
(出版サイトへのリンク): ● Publication site (DOI): 10.1007/s00262-025-03982-9
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 40025278; ● Summary page in Scopus @ Elsevier: 2-s2.0-85219642615

(DOI: 10.1007/s00262-025-03982-9, PubMed: 40025278, Elsevier: Scopus) Yu Akaike, Kei-ichi Morita, Kei Sakamoto, Fumihiko Tsushima, Kou Kayamori, Noboru Maruta, Kotaro Yamazaki, Eri Anzai, Erina Tonouchi, Hiroyuki Harada, Tohru Ikeda and Tetsuya Yoda :
Automatic detection of spongiosis associated with oral lichenoid lesions by machine learning,
Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology, 35, 4, 368-374, 2023.

(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.ajoms.2022.12.002
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-85146274152

(DOI: 10.1016/j.ajoms.2022.12.002, Elsevier: Scopus) Pissacha Daroonpan, Ryo Ouchi, Chenyang Zhang, Shigenori Nagai, Naoto Nishii, Yoshihisa Kashima, Fumihiko Tsushima, Hiroyuki Harada, Miwako Hamagaki, Tohru Ikeda, Jun Aida, Ruchadaporn Kaomongkolgit and Miyuki Azuma :
Personal immune profiles: Diversity and prognostic value for oral tongue squamous cell carcinoma evaluated by comprehensive immune parameter analyses with multiplex immunofluorescence,
Oral Oncology, 143, 106458, 2023.

(要約): Understanding the tumor immune microenvironment is becoming increasingly necessary for risk prediction and treatment selection. In particular, oral cancer has various immunosuppressive characteristics in the tumor microenvironment. Therefore, we comprehensively assessed the immune profiles of oral tongue squamous cell carcinoma (OTSCC). Multiplex immunofluorescence and tissue imaging analyses were performed to evaluate immune profiles at the invasive tumor front of 60 OTSCC surgical specimens. We analyzed 58 immune parameters including the density and proportion (%) of total leukocytes (Leu) and T cells, six subsets of T and myeloid cells, and the expression of programmed cell death-1 (PD-1) and PD-1 ligand 1 (PD-L1). The density, proportion, and location of CD45⁺ Leu, three T cell subsets (CD8⁺, Foxp3^-CD4⁺ conventional, and Foxp3⁺CD4⁺ regulatory T cells), CD163^-CD68⁺ M1 and CD163⁺CD68⁺ M2 macrophages, and neutrophils were highly variable at the individual level. The density and proportion of M2 macrophages were significantly lower in the T1 stage group. Risk prediction analyses for recurrence and/or metastasis (R/M) showed that R/M (+) T1 cases had significantly higher M2 density and percentages. The immune profiles of OTSCC patients are diverse and cannot be predicted from clinicopathological information alone. The M2 macrophage abundance is a potential candidate biomarker for R/M in the early stage of OTSCC. Personal immune profiling may provide beneficial information for risk prediction and treatment selection.
(キーワード): Humans / Prognosis / Carcinoma, Squamous Cell / Squamous Cell Carcinoma of Head and Neck / Programmed Cell Death 1 Receptor / Tongue Neoplasms / Head and Neck Neoplasms / Fluorescent Antibody Technique / Forkhead Transcription Factors / Tumor Microenvironment / B7-H1 Antigen / Lymphocytes, Tumor-Infiltrating
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.oraloncology.2023.106458
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37329869; ● Summary page in Scopus @ Elsevier: 2-s2.0-85162851984

(DOI: 10.1016/j.oraloncology.2023.106458, PubMed: 37329869, Elsevier: Scopus) Atsushi Uesugi, Fumihiko Tsushima, Youji Miyamoto and Hiroyuki Harada :
Pollen food allergy syndrome caused by Japanese radish: A case report,
Indian Journal of Dermatology, 68, 1, 123, 2023.

(要約): Pollen food allergy syndrome (PFAS) is a food allergy that manifests as hypersensitivity symptoms of the oropharyngeal mucosa on ingesting specific foods, and findings resemble herpetic gingivostomatitis. Few reports of PFAS caused by consuming radishes are found in the literature. A 31-year-old man presented to our department with stomatitis and pharyngeal pain. He had no history of allergies. Herpetic gingivostomatitis was suspected. He was admitted to the emergency room a few days later complaining of oral and epigastric pain. Symptoms were similar to those reported previously. He reported frequently consuming raw Japanese radish ( L.) which gave rise to his symptoms. Japanese radish was suspected as the allergen. The skin-prick test confirmed the diagnosis of PFAS. PFAS can be diagnosed easily once the food-causing symptoms are identified. Upon encountering widespread erosion in the oral cavity, it is essential to consider PFAS as the possible cause.
(キーワード): herpetic gingivostomatitis / Japanese radish / pollen food allergy syndrome / Raphans sativus L. / skin prick test
(出版サイトへのリンク): ● Publication site (DOI): 10.4103/ijd.ijd_405_22
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37151264; ● Search Scopus @ Elsevier (PMID): 37151264; ● Search Scopus @ Elsevier (DOI): 10.4103/ijd.ijd_405_22

(DOI: 10.4103/ijd.ijd_405_22, PubMed: 37151264) Takuya Komiyama, Takeshi Kuroshima, Takehito Sugasawa, Ichiro Shin Fujita, Yuta Ikami, Hideaki Hirai, Fumihiko Tsushima, Yasuyuki Michi, Kou Kayamori, Fumihiro Higashino and Hiroyuki Harada :
High expression of Sam68 contributes to metastasis by regulating vimentin expression and a motile phenotype in oral squamous cell carcinoma,
Oncology Reports, 48, 4, 183-195, 2022.

(要約): The present study aimed to investigate the clinical and biological significance of Src-associated in mitosis 68 kDa (Sam68) in oral squamous cell carcinoma (OSCC). Immunohistochemical analysis was performed on tissue samples obtained from 77 patients with OSCC. Univariate analysis revealed that the high expression of Sam68 was significantly correlated with advanced pathological T stage (P=0.01), positive lymphovascular invasion (P=0.01), and pathological cervical lymph node metastasis (P<0.01). Moreover, multivariate analysis demonstrated that the high expression of Sam68 was an independent predictive factor for cervical lymph node metastasis (odds ratio, 4.39; 95% confidence interval, 1.49-14.23; P<0.01). These results indicated that high Sam68 expression contributed to tumor progression, especially cervical lymph node metastasis, in OSCC. mRNA sequencing was also performed to assess the changes in the transcriptome between OSCC cells with Sam68 knockdown and control cells with the aim of elucidating the biological roles of Sam68. Gene Ontology enrichment analysis revealed that downregulated differentially expressed genes (DEGs) were concentrated in some biological processes related to epithelial-mesenchymal transition. Among these DEGs, it was established that vimentin was particularly downregulated in these cells. It was also confirmed that Sam68 knockdown reduced the motility of OSCC cells. Furthermore, the immunohistochemical study of vimentin identified the association between vimentin expression and Sam68 expression as well as cervical lymph node metastasis. In conclusion, the present study suggested that the high expression of Sam68 may contribute to metastasis by regulating vimentin expression and a motile mesenchymal phenotype in OSCC.
(キーワード): epithelial-mesenchymal transition / 転移 (metastasis) / motility / oral cancer / Src-associated in mitosis 68 kDa / vimentin
(出版サイトへのリンク): ● Publication site (DOI): 10.3892/or.2022.8398
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 36082807; ● Summary page in Scopus @ Elsevier: 2-s2.0-85137597365

(DOI: 10.3892/or.2022.8398, PubMed: 36082807, Elsevier: Scopus) Fumihiko Tsushima, Jinkyo Sakurai, Risa Shimizu, Kou Kayamori and Hiroyuki Harada :
Oral lichenoid contact lesions related to dental metal allergy may resolve after allergen removal,
Journal of Dental Sciences, 17, 3, 1300-1306, 2022.

(キーワード): Hypersensitivity / Metals / Oral lichen planus / Oral lichenoid contact lesions / Skin patch test
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.jds.2021.11.008
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-85120744397

(DOI: 10.1016/j.jds.2021.11.008, Elsevier: Scopus) Hiroyuki Harada, Hiroaki Shimamoto, Yu Oikawa, Takeshi Kuroshima, Hirofumi Tomioka, Hideaki Hirai, Fumihiko Tsushima and Yasuyuki Michi :
Mandibular Reconstruction with Scapular Systems: A Single-Center Case Series Involving 208 Flaps,
Plastic and Reconstructive Surgery, 148, 3, 625-634, 2021.

(要約): The scapular flap is the most versatile composite flap used for mandibular reconstruction. The purpose of this study was to review and summarize findings of cases of mandibular reconstruction with a scapular flap and describe associated outcomes and complications. A total of 208 microvascular scapular free flaps were performed for mandibular reconstruction in a total of 205 patients from 2003 to 2018. This study involved a retrospective review of all eligible patients' medical records. There were seven cases (3.4 percent) of microvascular thrombosis. Postoperative bone union was achieved by 201 patients, except for five with total flap necrosis and two with partial flap necrosis. There were four cases (1.9 percent) of mandibular condyle dislocation. Two major types of complications were observed at the donor site, including four cases of infection and six cases of scapular body fracture. Postoperative denture prosthesis was introduced to 97 patients (47.3 percent). Implant treatment was performed in 10 patients (4.9 percent). Functional and aesthetic outcomes were good to excellent. The scapular composite free flap for mandibular reconstruction was associated with favorable outcomes and demonstrated satisfactory results. Although scapular bone fracture is rare, patients who have undergone mandibular reconstruction using a scapular flap should be monitored for its presence. . Therapeutic, IV.
(キーワード): Adolescent / Adult / Aged / Aged, 80 and over / 女性 (female) / Follow-Up Studies / Free Tissue Flaps / Humans / 男性 (male) / Mandible / Mandibular Neoplasms / Mandibular Reconstruction / Middle Aged / Necrosis / Osteotomy / Postoperative Complications / Retrospective Studies / Scapula / Treatment Outcome / Young Adult
(出版サイトへのリンク): ● Publication site (DOI): 10.1097/PRS.0000000000008301
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 34432693; ● Summary page in Scopus @ Elsevier: 2-s2.0-85106310662

(DOI: 10.1097/PRS.0000000000008301, PubMed: 34432693, Elsevier: Scopus) Yosuke Harazono, Kou Kayamori, Junichiro Sakamoto, Yu Akaike, Yasuhiro Kurasawa, Fumihiko Tsushima, Yoshiyuki Sasaki, Hiroyuki Harada and Tetsuya Yoda :
Retrospective analysis of schwannoma in the oral and maxillofacial region: clinicopathological characteristics and specific pathology of ancient change,
The British Journal of Oral & Maxillofacial Surgery, 60, 3, 326-331, 2021.

(要約): Schwannomas are benign tumours that originate from the Schwann cells of the nerve. Despite the frequency of their occurrence in the head and neck, data relating to their clinicopathological features in the region are limited. This study reviews the clinicopathological characteristics and specific pathology of ancient (degenerative) change in 40 cases in the oral and maxillofacial region. Medical records were reviewed of the 40 cases treated at Tokyo Medical and Dental University Hospital Faculty of Dentistry between 2000 and 2020. The most frequently involved site was the tongue, and the average tumour size was 13.2 mm. Degenerative changes were observed in eight cases. All tumours were completely excised through biopsy or local excision, and no recurrence was observed on clinical follow up. Statistical analyses revealed significant associations (p < 0.05) between ancient change and tumour size, and between ancient change and the apparent diffusion coefficient (ADC) value derived from diffusion-weighted magnetic resonance imaging (MRI). Analysis suggests that schwannoma progresses over a long period and subsequently undergoes secondary ancient changes. Pathological events such as cystic formation and haemorrhage that are associated with ancient changes, cause hypocellularity and lead to high ADC values. These values may indicate ancient change and should be considered when distinguishing schwannoma from other lesions.
(キーワード): Ancient change / Apparent diffusion coefficient / Oral maxillofacial region / Schwannoma
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.bjoms.2021.07.014
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 34690015; ● Summary page in Scopus @ Elsevier: 2-s2.0-85117772627

(DOI: 10.1016/j.bjoms.2021.07.014, PubMed: 34690015, Elsevier: Scopus) Fumihiko Tsushima, Jinkyo Sakurai, Atsushi Uesugi, Yu Oikawa, Toshimitu Ohsako, Yumi Mochizuki, Hideaki Hirai, Kou Kayamori and Hiroyuki Harada :
Malignant transformation of oral lichen planus: a retrospective study of 565 Japanese patients,
BMC Oral Health, 21, 1, 298, 2021.

(要約): Oral lichen planus (OLP) is a chronic inflammatory oral mucosa disease that is recognized as an oral potentially malignant disorder. However, the potentially malignant nature of OLP remains unclear. We designed this study to examine the demographic and clinical characteristics of patients with OLP and evaluate the associated malignant transformation rate. A total of 565 patients with a clinical and histopathological diagnosis of OLP who presented at our department between 2001 and 2017 were retrospectively studied. Patients who had clinical and histopathological features of oral lichenoid lesions (OLLs) classified as oral lichenoid contact lesions, oral lichenoid drug reactions and oral lichenoid lesions of graft-versus-host disease were excluded. The study population included 123 men and 442 women aged 21-93 years (mean ± standard deviation, 60.5 ± 11.8). The 565 patients were followed up for a duration of 55.9 ± 45.3 months, during which 4 (0.7%) patients developed squamous cell carcinoma (SCC). In three of these 4 patients who developed SCC, the clinical type of OLP was the red type. Our results suggested that OLP was associated with a low risk of malignant transformation. We recommend regular follow-up for OLP patients and clear differentiation of oral epithelial dysplasia and OLLs to enable early detection of malignant transformation. Further investigation of the clinical risk factors associated with malignant transformation is necessary.
(キーワード): 癌 (cancer) / 口腔粘膜疾患
(徳島大学機関リポジトリ): ● Metadata: 2010233
(出版サイトへのリンク): ● Publication site (DOI): 10.1186/s12903-021-01652-7
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 34112142; ● Summary page in Scopus @ Elsevier: 2-s2.0-85107546382

(徳島大学機関リポジトリ: 2010233, DOI: 10.1186/s12903-021-01652-7, PubMed: 34112142, Elsevier: Scopus) Yu Oikawa, Yasuyuki Michi, Fumihiko Tsushima, Hirofumi Tomioka, Yumi Mochizuki, Takuma Kugimoto, Toshimitsu Osako, Hitomi Nojima, Misaki Yokokawa, Yoshihisa Kashima and Hiroyuki Harada :
Management of retropharyngeal lymph node metastasis in oral cancer,
Oral Oncology, 99, 104471, 2019.

(要約): Retropharyngeal lymph node (RPLN) metastasis is extremely rare, and prognosis is significantly poor in oral cancer. We retrospectively examined the management of RPLN metastases in oral cancer. A total of 1247 patients with oral cancer were treated at our department from January 2002 and December 2016. Among these patients, 374 (30%) had histologically positive lymph node metastases. Of these, 15 patients (1.2%) were diagnosed with RPLN metastases. We evaluated the diagnostic period, size, recurrence pattern, laterality, treatment, and therapeutic outcomes. The Kaplan-Meier method was used to determine overall survival (OS) among the RPLN metastasis group, cervical lymph node (CLN) metastases group, and treatment methods group for RPLN metastases. One patient had RPLN involvement at the initial treatment, and RPLN involvement in other patients was found subsequently. The mean duration in confirming RPLN metastases was 228 days (range, 50-867 days). Surgical therapy was performed in 5 patients, chemoradiotherapy in 7 patients, and best supported care (BSC) in 3 patients. The cumulative 5-year OS rate for the RPLN metastasis group (n = 15) was 38.1%, compared with the rate of 71.3% for the CLN group (n = 359). Regarding the therapeutic approach for RPLN metastases, OS rates were 80.0% (n = 5) in the surgical therapy group, 28.6% (n = 7) in the chemoradiotherapy group, and 0% (n = 3) in the BSC group. Early detection and surgical treatment of RPLN metastases are associated with increased survival rate in oral cancer.
(キーワード): Cervical lymph node / Oral cancer / Overall survival / Retropharyngeal lymph nodes / Rouvière lymph node / Surgical therapy
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.oraloncology.2019.104471
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31678766; ● Summary page in Scopus @ Elsevier: 2-s2.0-85074150758

(DOI: 10.1016/j.oraloncology.2019.104471, PubMed: 31678766, Elsevier: Scopus) Toshimitsu Ohsako, Hiroaki Shimamoto, Hirofumi Tomioka, Hideaki Hirai, Takeshi Kuroshima, Yumi Mochizuki, Takuma Kugimoto, Fumihiko Tsushima, Shin Nakamura, Tohru Kurabayashi and Hiroyuki Harada :
Detection of extraoral primary cancers by positron emission tomography/computed tomography in patients with oral squamous cell carcinoma,
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, 129, 3, 272-276, 2019.

(要約): Extraoral primary cancers (EPCs) can appear in patients with oral cancer. This study investigated the use of positron emission tomography/computed tomography (PET/CT) to detect EPCs and to identify characteristics of these cancers. The disease-specific survival rate and the overall survival rate were calculated. We studied records for 891 patients with oral cancer who underwent PET/CT between January 2006 and December 2016 for the detection of EPCs. A total of 35 EPCs were detected by PET/CT in 34 patients with primary oral carcinoma (3.8%). Of this total, 33 patients had 1 EPC and 1 patient had 2 EPCs. The extraoral lesions were found in the upper gastrointestinal tract (11), colon (6), lung (5), kidney (3), liver (2), prostate (2), breast (2), bladder (1), thyroid (1), pancreas (1), and hypopharynx (1). The disease-specific survival rate was 84.8% and the overall survival rate was 64.6%. PET/CT was useful for early detection of EPCs. The use of PET/CT for the early detection and treatment of EPCs with no symptoms can improve treatment outcomes.
(キーワード): Carcinoma, Squamous Cell / Fluorodeoxyglucose F18 / Humans / 男性 (male) / Mouth Neoplasms / Positron Emission Tomography Computed Tomography / Positron-Emission Tomography / Radiopharmaceuticals / Retrospective Studies / Survival Rate
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.oooo.2019.09.001
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31982370; ● Summary page in Scopus @ Elsevier: 2-s2.0-85078150688

(DOI: 10.1016/j.oooo.2019.09.001, PubMed: 31982370, Elsevier: Scopus) 中川知里, 津島文彦, 櫻井仁亨, 上杉篤史, 佐藤潔, 尾田誠一郎, 原田浩之 :
類天疱瘡24例に関する臨床病理学的検討,
日本口腔内科学会雑誌, 25, 1, 1-9, 2019年.

(要約): 類天疱瘡は，上皮下水疱を呈する自己免疫性水疱症である．2007年から2017年の間に類天疱瘡と診断された24例について臨床病理学的検討を行ったので報告する．内訳は，粘膜類天疱瘡が21例，水疱性類天疱瘡が3例であった．性別は男性5例，女性19例，年齢は44歳から91歳(中央値65.5歳)であった．口腔内での発生部位は歯肉が19例と最も多く，頬粘膜が7例，口蓋が6例であった．口腔内病変のみ認めたのは18例であった．治療法は，ステロイドの全身投与が12例，局所投与が12例であった．局所投与の12例中8例は，ミノサイクリン塩酸塩，ジアフェニルスルフォンおよびニコチン酸アミドが単独または併用で投与されていた．全例の病状は改善し，現在も再燃に注意しながら経過観察を行っている．類天疱瘡は，口腔内のみに病変を認める症例も多く，皮膚科と連携し早期に診断し適切な治療を行う必要があると思われた．
(キーワード): 粘膜類天疱瘡 / 水疱性類天疱瘡 / ステロイド (steroid)
(出版サイトへのリンク): ● Publication site (DOI): 10.6014/jjsom.25.1
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390002184859862656; ● Search Scopus @ Elsevier (DOI): 10.6014/jjsom.25.1

(DOI: 10.6014/jjsom.25.1, CiNii: 1390002184859862656) Ruri Komiya, Takahiro Wada, Fumihiko Tsushima, Kei Sakamoto, Tohru Ikeda, Akira Yamaguchi, Hiroyuki Harada and Motohiro Uo :
Quantitation and distribution of metallic elements in sequestra of medication-related osteonecrosis of jaw (MRONJ) using inductively coupled plasma atomic emission spectroscopy and synchrotron radiation X-ray fluorescence analysis,
Journal of Bone and Mineral Metabolism, 37, 4, 676-684, 2018.

(要約): Medication-related osteonecrosis of the jaw (MRONJ) is a serious adverse effect of antiresorptive agents like bisphosphonates. Abnormal concentrations of various trace metallic elements contained in bone minerals have been associated with MRONJ. In this study, we focused on trace metallic elements contained in the MRONJ sequestrum; their content and distribution were compared to those in osteomyelitis and non-inflammatory bones using inductively coupled plasma atomic emission spectroscopy (ICP-AES) and synchrotron radiation X-ray fluorescence analysis (SR-XRF). On ICP-AES analyses, various trace elements (Co, Cr, Cu, Fe, K, Mg, Ni, Sb, Ti, V, Pb) were significantly more in MRONJ sequestra than non-inflammatory bones. The Cu content was significantly higher in MRONJ sequestra than osteomyelitis and non-inflammatory bones. The Cu content in MRONJ sequestra was high even after decalcification. Additionally, Cu was distributed along the trabecular structures in decalcified MRONJ specimens, as observed using SR-XRF analysis. Therefore, this study was indicative of the characteristic behavior of Cu in MRONJ.
(キーワード): Inductively coupled plasma atomic emission spectroscopy (ICP-AES) / Medication-related osteonecrosis of the jaw (MRONJ) / Synchrotron radiation X-ray fluorescence analysis (SR-XRF) / Trace metallic element
(出版サイトへのリンク): ● Publication site (DOI): 10.1007/s00774-018-0975-3
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 30465092; ● Summary page in Scopus @ Elsevier: 2-s2.0-85056865285

(DOI: 10.1007/s00774-018-0975-3, PubMed: 30465092, Elsevier: Scopus) 野島瞳, 富岡寛文, 大迫利光, 津島文彦, 池田通, 原田浩之 :
病理組織標本作製過程における組織の寸法変化に関する検討,
日本口腔科学会雑誌, 67, 3, 240-245, 2018年.

(要約): It has been reported that histological specimens shrink and/or expand during the formalin fixation process and preparation of histopathological specimens. In this study, to quantify the dimensional changes of histological specimens, we investigated the size of hard and soft tissues during the following processes: formalin fixation (study ), and from post-trimming to completion of the histopathological specimen (study ). Study consisted of soft tissue samples from 15 tongue resected patients, and hard tissue samples from 15 segmental mandibular resected patients. The dimensions were measured before and after formalin fixation. The mean shrinkage in soft tissues and hard tissues were -0.40% and 2.79%, respectively. The larger the surgical soft tissue specimen, the significantly smaller was its mean shrinkage. Study consisted of the soft tissue samples from 67 tongue resected patients, and hard tissue samples from 19 segmental mandibular resected patients. The dimensions were measured at the time of post-trimming and after completing the histopathological specimens. The mean shrinkage in soft tissues was 6.81%, compared to 9.35% in hard tissues. The mean shrinkage in hard tissues was significantly higher than that in soft tissues. In contrast to study , study showed that as the size of soft tissue specimen increased, its mean shrinkage also increased significantly. These results provide useful feedback from histopathological diagnosis to clinical diagnosis, and help to choose more appropriate diagnosis and treatments.
(キーワード): 病理組織標本 / 寸法変化 / 口腔 (oral cavity)
(出版サイトへのリンク): ● Publication site (DOI): 10.11277/stomatology.67.240
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390001288073971456; ● Search Scopus @ Elsevier (DOI): 10.11277/stomatology.67.240

(DOI: 10.11277/stomatology.67.240, CiNii: 1390001288073971456) Hideaki Hirai, Hirofumi Tomioka, Yumi Mochizuki, Yu Oikawa, Fumihiko Tsushima and Hiroyuki Harada :
Clinical Course of Oral Squamous Cell Carcinoma in Patients on Immunosuppressant and Glucocorticoid Therapy,
Journal of Oral and Maxillofacial Surgery, 75, 9, 1980-1986, 2017.

(要約): Depressed immune function is a serious adverse effect of long-term immunosuppressant or steroid administration at doses that exceed the physiologically required amount. The purpose of this study was to determine the effects of immunosuppression on carcinogenesis, particularly malignant tumor development, in patients with oral squamous cell carcinoma who had immunosuppression because of immunosuppressant therapy with or without steroid therapy administered for different underlying diseases. In this retrospective chart review, 886 patients with oral squamous cell carcinoma who received treatment at the authors' department from April 2001 through December 2011 were included. Their clinical characteristics; tumor, node, and metastasis (TNM) stage; initial treatment for the primary cancer; mode of cervical lymph node metastasis; incidence rate of distant metastases; white blood cell, neutrophil, and lymphocyte counts on initial examination; and therapeutic outcomes were evaluated and compared between patients on and those not on immunosuppressant therapy with or without steroid therapy. Survival rates were calculated using the Kaplan-Meier method. Fourteen eligible patients (5 men, 9 women; mean age, 65.2 yr) were identified who were on immunosuppressant therapy with or without steroid therapy. They exhibited considerably more metastases, extracapsular spread, and distant metastases, and the number of metastases and extracapsular spread were statistically significant (P = .0213, P = .042, respectively). In 9 patients, total lymphocyte count in the peripheral blood was no higher than 1,500/μL, indicating the lower limit of the normal range. One patient died of recurrence of the primary tumor. Another patient died of cervical lymph node recurrence. Distant metastases occurred in 2 patients. The cumulative disease-specific 5-year survival rate of patients receiving immunosuppressive therapy was 62.3% and that of patients with cervical lymph node metastasis was 25%. The results of this study suggest that patients with oral squamous cell carcinoma on immunosuppression therapy show progression of cervical lymph node metastasis and extracapsular spread and are at high risk of developing distant metastases.
(キーワード): Aged / Carcinoma, Squamous Cell / Disease Progression / 女性 (female) / Glucocorticoids / Humans / Immunocompromised Host / Immunosuppressive Agents / Leukocyte Count / Lymphatic Metastasis / 男性 (male) / Mouth Neoplasms / Neoplasm Staging / Retrospective Studies / Risk Factors / Survival Rate
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.joms.2017.01.006
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 28189660; ● Summary page in Scopus @ Elsevier: 2-s2.0-85014665631

(DOI: 10.1016/j.joms.2017.01.006, PubMed: 28189660, Elsevier: Scopus) Yumi Mochizuki, Hirofumi Tomioka, Fumihiko Tsushima, Hiroaki Shimamoto, Hideaki Hirai, Yuu Oikawa and Hiroyuki Harada :
Clinical evaluation of coverage of open wounds: Polyglycolic acid sheet with fibrin glue spray vs split thickness skin,
Annals of Maxillofacial Surgery, 6, 2, 228-234, 2016.

(要約): This study aimed to evaluate the coverage of oral wounds using either a polyglycolic acid (PGA) sheet or split-thickness skin grafting (STSG). A total of 119 cases of wound coverage using a PGA sheet and fibrin glue spray as well as 132 cases of wound coverage cases using STSG were reviewed retrospectively. The site of the excision area, perioperative conditions, and postoperative functional problems were evaluated. The PGA group had significantly shorter operation time, earlier start of oral intake, and shorter hospitalization than the STSG group. If the PGA sheet over the wound with exposed bone could be protected by a surgical sprint, oral food intake could be started on the day after surgery at the earliest. When the size of the wound in the buccal excisional area was classified into two groups (<6 or ≥6 cm²), mouth opening in the STSG group was significantly larger at 3 months postoperatively. When the size of the wound in the tongue and floor of mouth was classified into two groups (<12 or ≥12 cm²), the STSG group had a significantly higher score in postoperative speech intelligibility. Selection of a PGA sheet or STSG based on the consideration of defect size, tumor location, patients' local and general condition and tolerance for surgery could reduce the patients' postsurgical dysfunctional problems.
(出版サイトへのリンク): ● Publication site (DOI): 10.4103/2231-0746.200346
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 28299263; ● Search Scopus @ Elsevier (PMID): 28299263; ● Search Scopus @ Elsevier (DOI): 10.4103/2231-0746.200346

(DOI: 10.4103/2231-0746.200346, PubMed: 28299263) Yuri Kuribayashi, Fumihiko Tsushima, Ichi Kei Morita, Kanako Matsumoto, Jinkyo Sakurai, Atsushi Uesugi, Kiyoshi Sato, Seiichiro Oda, Kei Sakamoto and Hiroyuki Harada :
Long-term outcome of non-surgical treatment in patients with oral leukoplakia,
Oral Oncology, 51, 11, 1020-1025, 2015.

(要約): The standard treatments for oral leukoplakia range from careful observation to complete resection. No surgical intervention is chosen for several supposable reasons. Surgical treatment and no surgical treatment for oral leukoplakia have no defined basis for comparisons, and few studies have reported on the long-term outcomes of oral leukoplakia without surgery. This study aimed to identify the important factors using a long-term wait-and-see policy in patients with oral leukoplakia. In total, 237 lesions from 218 patients selected for non-surgical therapy between 2001 and 2010 were analyzed. On the basis of long-term follow-up data, lesions were classified as unchanged, reduced, disappeared, expanded, and malignantly transformed. In total, 135 (57.0%) lesions remained unchanged, 30 (12.7%) lesions were characterized by a reduction in size or clinical severity, and 44 (18.6%) lesions had disappeared. Another 17 (7.2%) lesions resulted in spread or clinical deterioration, and 11 (4.6%) lesions developed oral squamous cell carcinoma. We demonstrated a cumulative malignant transformation rate of 11.6% in 10years without resection. The lesions that were nonhomogeneous, and higher degree of epithelial dysplasia, located on the tongue were likely to progress into cancer. In addition, 32.5% of lesions without surgical treatment were reduced or disappeared. There is a possibility that removal of considerable irritation for a long time contributes to the treatment of this disease. The development of appropriate treatments for oral leukoplakia is required, which will enable successful differentiation between surgical and observation cases.
(キーワード): Epithelial dysplasia / Malignant transformation / Oral leukoplakia
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.oraloncology.2015.09.004
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 26410021; ● Summary page in Scopus @ Elsevier: 2-s2.0-84944716786

(DOI: 10.1016/j.oraloncology.2015.09.004, PubMed: 26410021, Elsevier: Scopus) Namiaki Takahara, Hideki Imai, Satoshi Nakagawa, Kanako Sumikura, Fumihiko Tsushima and Ken Omura :
Temporomandibular joint intermittent closed lock: Clinic and magnetic resonance imaging findings,
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, 118, 4, 418-423, 2014.

(要約): This study was carried out to describe the clinical and magnetic resonance imaging (MRI) findings of patients with intermittent closed lock (ICL) of the temporomandibular joint (TMJ). This retrospective study included 58 joints with ICL and 526 joints without ICL as controls. We compared the MRI findings between the patients with and without ICL and investigated clinical and MRI finding of ICL patients. We divided ICL patients into 2 groups based on the treatment efficacy: effective and ineffective. There were significant differences in the prevalence of disk deformity between the joints with and without ICL. Masticatory muscle pain was observed in 41.7% of the effective group and in 80% of the ineffective group, respectively. These results suggest that there is a relationship among the onset of ICL and disk deformation. Masticatory musclepain was significantly observed in the ineffective group.
(キーワード): Adolescent / Adult / Facial Pain / 女性 (female) / Humans / 磁気共鳴映像法 (magnetic resonance imaging) / 男性 (male) / Masticatory Muscles / Middle Aged / Pain Measurement / Range of Motion, Articular / Retrospective Studies / Temporomandibular Joint Disc / Temporomandibular Joint Disorders
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.oooo.2014.05.019
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 25183227; ● Summary page in Scopus @ Elsevier: 2-s2.0-84922838252

(DOI: 10.1016/j.oooo.2014.05.019, PubMed: 25183227, Elsevier: Scopus) Y. Mochizuki, K. Omura, K. Sakamoto, Y. Nakajima, Fumihiko Tsushima and N. Takahara :
Extranodal non-Hodgkin's lymphoma emerging on the lingual gingiva after extracting a fibrous tumor of bone from the mid mandible: A case report,
Chirurgia (Turin), 27, 1, 65-69, 2014.

(キーワード): B cell / Fibrosis / Lymphoma / Mandible
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-84897948557

(Elsevier: Scopus) 津島文彦, 桜井仁亨, 佐藤昌, 須田悠里, 田中香衣, 富岡寛文, 島本裕彰, 中島雄介, 原田浩之, 小村健 :
口腔白板症の癌化に関する臨床的検討,
日本口腔外科学会雑誌, 59, 11, 691-698, 2013年.

(要約): The purpose of this study was to examine clinical risk factors of oral leukoplakia that were associated with malignant transformation. A total of 512 patients (554 lesions) with clinical and histopathological diagnoses of oral leukoplakia who presented at our department from 2001 through 2010 were retrospectively studied. They consisted of 278 males and 234 females 11 to 84 years of age (median, 61 years). The mean follow-up was 36 months. The sites of oral leukoplakia included the tongue (176 lesions), gingiva (219 lesions), buccal mucosa (76 lesions), hard palate (50 lesions), soft palate (21 lesions), lips (7 lesions), and floor of the mouth (5 lesions). Squamous cell carcinoma developed in 13 of the 512 patients during follow-up. The development occurred after a mean period of 39 months (range, 9 to 91 months). The sites of malignant transformation included the ventral aspect of the tongue (10 lesions), gingiva (1 lesion), buccal mucosa (1 lesion), and soft palate (1 lesion). In 9 of these 13 malignant lesions, the clinical type of oral leukoplakia was non-homogeneous. The degree of epithelial dysplasia was none (2 lesions), mild (5 lesions), or moderate (6 lesions). On univariate analysis, site, clinical type, and treatment significantly correlated with malignant transformation. On multivariate analysis, these 3 factors retained their statistical significance. The cumulative malignant transformation rate was 5.6% at 5 years and 8.7% at 10 years.
(キーワード): 口腔白板症 / 癌化 / 累積癌化率 / 後ろ向き研究
(出版サイトへのリンク): ● Publication site (DOI): 10.5794/jjoms.59.691
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390282681510039296; ● Search Scopus @ Elsevier (DOI): 10.5794/jjoms.59.691

(DOI: 10.5794/jjoms.59.691, CiNii: 1390282681510039296) Yuri Kuribayashi, Fumihiko Tsushima, Masaru Sato, ichi Kei Morita and Ken Omura :
Recurrence patterns of oral leukoplakia after curative surgical resection: Important factors that predict the risk of recurrence and malignancy,
Journal of Oral Pathology & Medicine, 41, 9, 682-688, 2012.

(要約): Oral leukoplakia can be treated using a variety of treatment procedures; however, the lesions recur in many cases irrespective of the treatment procedure used. The rate of recurrence was from 7.7% to 38.1%. This study aims to identify the important factors that can lower the risk of recurrence of oral leukoplakia treated by curative surgical resection. The clinical records of 52 patients with oral leukoplakia (53 lesions) who underwent curative surgical resection between 2004 and 2009 were retrospectively analyzed for the rate of recurrence, clinical outcome, epithelial dysplasia, lesion location, and resection margins. The recurrence rate following curative surgical resection was 15.1%, with the most common site being the gingiva. Malignant transformation occurred in a single patient (1.9%). Minimal resection margins (<3 mm) were observed in many patients with recurrent disease, and recurrence was more likely in cases with positive margins (epithelial abnormalities at the resection margins) than in those with negative margins. There was no significant association between recurrence and the degree of epithelial dysplasia. Our data suggest that surgical resection of oral leukoplakia is curative only if all areas of epithelial abnormalities are identified and resected. Moreover, an adequate resection margin may reduce the risk of recurrence.
(キーワード): Epithelial dysplasia / Leukoplakia / Malignant transformation / Oral cancer / Oral precancer / Surgical resection
(出版サイトへのリンク): ● Publication site (DOI): 10.1111/j.1600-0714.2012.01167.x
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 22697318; ● Summary page in Scopus @ Elsevier: 2-s2.0-84866873014

(DOI: 10.1111/j.1600-0714.2012.01167.x, PubMed: 22697318, Elsevier: Scopus) June Jang Park, Ryusuke Omiya, Yumiko Matsumura, Yukimi Sakoda, Atsuo Kuramasu, M. Mathew Augustine, Sheng Yao, Fumihiko Tsushima, Hidehiko Narazaki, Sudarshan Anand, Yingjia Liu, E. Scott Strome, Lieping Chen and Koji Tamada :
B7-H1/CD80 interaction is required for the induction and maintenance of peripheral T-cell tolerance,
Blood, 116, 8, 1291-1298, 2010.

(要約): T-cell tolerance is the central program that prevents harmful immune responses against self-antigens, in which inhibitory PD-1 signal given by B7-H1 interaction plays an important role. Recent studies demonstrated that B7-H1 binds CD80 besides PD-1, and B7-H1/CD80 interaction also delivers inhibitory signals in T cells. However, a role of B7-H1/CD80 signals in regulation of T-cell tolerance has yet to be explored. We report here that attenuation of B7-H1/CD80 signals by treatment with anti-B7-H1 monoclonal antibody, which specifically blocks B7-H1/CD80 but not B7-H1/PD-1, enhanced T-cell expansion and prevented T-cell anergy induction. In addition, B7-H1/CD80 blockade restored Ag responsiveness in the previously anergized T cells. Experiments using B7-H1 or CD80-deficient T cells indicated that an inhibitory signal through CD80, but not B7-H1, on T cells is responsible in part for these effects. Consistently, CD80 expression was detected on anergic T cells and further up-regulated when they were re-exposed to the antigen (Ag). Finally, blockade of B7-H1/CD80 interaction prevented oral tolerance induction and restored T-cell responsiveness to Ag previously tolerized by oral administration. Taken together, our findings demonstrate that the B7-H1/CD80 pathway is a crucial regulator in the induction and maintenance of T-cell tolerance.
(キーワード): Animals / Antigens, Differentiation / Autoantigens / B7-1 Antigen / B7-H1 Antigen / Blotting, Western / Cell Proliferation / Enzyme-Linked Immunosorbent Assay / 女性 (female) / Flow Cytometry / Humans / Immune Tolerance / Immunization / Immunoglobulin G / Immunoprecipitation / Membrane Glycoproteins / Mice / Mice, Inbred C57BL / ノックアウトマウス (knockout mice) / トランスジェニックマウス (transgenic mice) / Ovalbumin / Peptide Fragments / Peptides / Programmed Cell Death 1 Receptor / RNA, Messenger / Rats / Rats, Inbred Lew / Receptors, Antigen, T-Cell / Reverse Transcriptase Polymerase Chain Reaction / Tリンパ球 (T lymphocytes) / T-Lymphocytes, Cytotoxic
(出版サイトへのリンク): ● Publication site (DOI): 10.1182/blood-2010-01-265975
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20472828; ● Summary page in Scopus @ Elsevier: 2-s2.0-77956496386

(DOI: 10.1182/blood-2010-01-265975, PubMed: 20472828, Elsevier: Scopus) Patcharee Ritprajak, Masaaki Hashiguchi, Fumihiko Tsushima, Narumon Chalermsarp and Miyuki Azuma :
Keratinocyte-associated B7-H1 directly regulates cutaneous effector CD8+ T cell responses,
The Journal of Immunology, 184, 9, 4918-4925, 2010.

(要約): Keratinocytes (KCs) may play important roles for maintenance of peripheral tolerance in the upper layers of the skin. Coinhibitory signals mediated via the programmed death (PD)-1 and its ligand B7-H1 (PD-L1/CD274) are crucial for the downregulation of T cell immune responses and for the maintenance of peripheral tolerance. In this study, to investigate the role of KC-expressed B7-H1 in the regulation of T cell immune responses, we generated transgenic (tg) mice overexpressing B7-H1 under the control of keratin 14 (K14) promoter (K14-B7-H1 tg). K14-B7-H1 tg mice displayed impaired contact hypersensitivity (CH) responses to primary and secondary hapten challenges. The K14-B7-H1 tg mice did not exhibit substantial impairment of cutaneous dendritic cell migration after sensitization and of hapten-specific proliferation and IFN-gamma production of CD4(+) and CD8(+) T cells in the draining lymph nodes, suggesting that overexpression of B7-H1 on KCs did not affect the induction phase of the CH response. The systemic or s.c. injection of hapten-sensitized T cells into the K14-B7-H1 tg mice did not efficiently induce the CH response. IFN-gamma expression and apoptosis of KCs in the challenged ears were impaired in K14-B7-H1 tg mice. IFN-gamma production by presensitized CD8(+) T cells stimulated with hapten-pulsed KCs was markedly impaired for the KCs obtained from the K14-B7-H1 tg mice but was restored by the addition of an anti-B7-H1 mAb. These results suggest that KC-associated B7-H1 directly downregulates the effector function of CD8(+) T cells by associating with PD-1 at local inflammatory sites and that it plays a role in peripheral T cell tolerance against exogenous Ags.
(キーワード): Animals / Antigens, CD / Apoptosis Regulatory Proteins / B7-1 Antigen / B7-H1 Antigen / CD8-Positive T-Lymphocytes / Cells, Cultured / Dermatitis, Contact / Down-Regulation / Humans / Inflammation Mediators / Jurkat Cells / Keratin-14 / Keratinocytes / Membrane Glycoproteins / Mice / Mice, Inbred BALB C / Mice, Inbred C57BL / トランスジェニックマウス (transgenic mice) / Peptides / Programmed Cell Death 1 Receptor / Promoter Regions, Genetic / 皮膚 (skin)
(出版サイトへのリンク): ● Publication site (DOI): 10.4049/jimmunol.0902478
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20363965; ● Summary page in Scopus @ Elsevier: 2-s2.0-77954477938

(DOI: 10.4049/jimmunol.0902478, PubMed: 20363965, Elsevier: Scopus) Ryusuke Omiya, Fumihiko Tsushima, Hidehiko Narazaki, Yukimi Sakoda, Atsuo Kuramasu, Youn Kim, Haiying Xu, Hideto Tamura, Gefeng Zhu, Lieping Chen and Koji Tamada :
Leucocyte-associated immunoglobulin-like receptor-1 is an inhibitory regulator of contact hypersensitivity,
Immunology, 128, 4, 543-555, 2009.

(要約): Leucocyte-associated immunoglobulin-like receptor-1 (LAIR-1) is a membrane receptor of the immunoglobulin (Ig) superfamily that is expressed on most types of haematopoietic cells, and delivers inhibitory signals through interacting with collagens. In order to elucidate the immunological functions of LAIR-1 in vivo, we established transgenic mice expressing a chimeric protein composed of the extracellular domain of LAIR-1 fused with an Ig tag (LAIR-1-Ig), which acts as a decoy by competing with endogenous LAIR-1. The transgenic mice showed an increased susceptibility for development of contact hypersensitivity (CHS), an experimental model of allergic contact dermatitis, in association with enhanced hapten-specific T-cell responses. When T cells from the hapten-sensitized donor mice were transferred into non-sensitized recipients, treatment of either donor mice or recipient mice with LAIR-1-Ig protein accelerated CHS, suggesting a potentially negative role of LAIR-1 in both the sensitization and the elicitation of hapten-reactive T cells. In vitro assays revealed that LAIR-1 decreased the production of interleukin-6 and interleukin-12 in dendritic cells, and inhibited the proliferation and cytokine production of naïve and memory T cells along with G(0)/G(1) cell cycle arrest. Collectively, our findings suggest that LAIR-1 plays a crucial inhibitory role in CHS by regulating antigen-presenting cell and T-cell functions.
(キーワード): Co-signal molecule / Contact hypersensitivity / Dendritic cells / LAIR-1 / T細胞 (T cells)
(出版サイトへのリンク): ● Publication site (DOI): 10.1111/j.1365-2567.2009.03140.x
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 19930044; ● Summary page in Scopus @ Elsevier: 2-s2.0-70449401593

(DOI: 10.1111/j.1365-2567.2009.03140.x, PubMed: 19930044, Elsevier: Scopus) Fumihiko Tsushima, Sheng Yao, Tahiro Shin, Andrew Flies, Sarah Flies, Haiying Xu, Koji Tamada, M. Drew Pardoll and Lieping Chen :
Interaction between B7-H1 and PD-1 determines initiation and reversal of T-cell anergy,
Blood, 110, 1, 180-185, 2007.

(要約): Although self-reactive T-cell precursors can be eliminated upon recognition of self-antigen presented in the thymus, this central tolerance process is often incomplete, and additional mechanisms are required to prevent autoimmunity. Recent studies indicates that the interaction between B7-H1 and its receptor PD-1 on activated T cells plays an important role in the inhibition of T-cell responses in peripheral organs. Here, we show that, before their exit to the periphery, T cells in lymphoid organs rapidly up-regulate PD-1 upon tolerogen recognition. Ablation of the B7-H1 and PD-1 interaction when T cells are still in lymphoid organs prevents anergy. Furthermore, blockade of B7-H1 and PD-1 interaction could render anergic T cells responsive to antigen. Our results thus reveal previously unappreciated roles of B7-H1 and PD-1 interaction in the control of initiation and reversion of T-cell anergy.
(キーワード): Animals / Antigens, Differentiation / B7-1 Antigen / B7-H1 Antigen / Clonal Anergy / Lymph Nodes / Lymphocyte Activation / Membrane Glycoproteins / Mice / Peptides / Programmed Cell Death 1 Receptor / Self Tolerance / Tリンパ球 (T lymphocytes) / Up-Regulation
(出版サイトへのリンク): ● Publication site (DOI): 10.1182/blood-2006-11-060087
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 17289811; ● Summary page in Scopus @ Elsevier: 2-s2.0-34347371572

(DOI: 10.1182/blood-2006-11-060087, PubMed: 17289811, Elsevier: Scopus) P. Youngnak-Piboonratanakit, Fumihiko Tsushima, N. Otsuki, H. Igarashi, K. Omura and M. Azuma :
Expression and regulation of human CD275 on endothelial cells in healthy and inflamed mucosal tissues,
Scandinavian Journal of Immunology, 63, 3, 191-198, 2006.

(要約): The CD275-CD278 costimulatory pathway is a new pathway for CD28-B7 family molecules involved in the effector phase of T-cell-mediated immune responses. Expression of CD275 in oral mucosa at healthy and disease states has not been examined. We generated monoclonal antibodies against human CD275 and investigated its expression and regulation in cultured tissue cell lines and oral mucosal tissues. CD275 on monocytes was efficiently upregulated by interleukin-4, while interferon-gamma abrogated this effect. CD275 on cultured endothelial cells (EC) was rapidly enhanced by tumour necrosis factor-alpha. In healthy oral mucosa, CD275 was not detected on keratinocytes, Langerhans cells or intraepithelial lymphocytes within the epithelium or on interstitial dendritic cells or lymphocytes in the sub-epithelium. Constitutive expression of CD275 on EC in the connective tissues was observed in healthy mucosa, but CD275 expression on EC in oral lichen planus was either upregulated or down regulated. Approximately 20% of the T cells found within infiltrating mononuclear cells in the sub-epithelium expressed high levels of the CD278 receptor. CD275 on lymphoid and nonlymphoid cells is positively or negatively regulated by various cytokines. Our results suggest that CD275 on EC is involved in the recruitment or extravasation of receptor-positive effector T cells into inflamed tissues.
(キーワード): Adult / Animals / Antibodies, Monoclonal / Antigens, CD / B7-1 Antigen / Cell Line / Endothelial Cells / 女性 (female) / Fibroblasts / 遺伝子発現 (gene expression) / Humans / In Situ Hybridization / Inducible T-Cell Co-Stimulator Ligand / 炎症 (inflammation) / Keratinocytes / Lichen Planus, Oral / 男性 (male) / Mice / Mice, Inbred BALB C / Middle Aged / Monocytes / Mouth Mucosa / Transfection
(出版サイトへのリンク): ● Publication site (DOI): 10.1111/j.1365-3083.2006.01726.x
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 16499572; ● Summary page in Scopus @ Elsevier: 2-s2.0-33644818636

(DOI: 10.1111/j.1365-3083.2006.01726.x, PubMed: 16499572, Elsevier: Scopus) Fumihiko Tsushima, Kae Tanaka, Noriko Otsuki, Pornpan Youngnak, Hideyuki Iwai, Ken Omura and Miyuki Azuma :
Predominant expression of B7-H1 and its immunoregulatory roles in oral squamous cell carcinoma,
Oral Oncology, 42, 3, 268-274, 2005.

(要約): We examined cell surface expression of five B7 costimulatory molecules (B7-H1, B7-DC, B7h, CD80 and CD86) in human oral squamous cell carcinoma (SCC) lines. Most human SCC cell lines expressed various levels of B7-H1 and B7-DC. Their expression was further upregulated by interferon (IFN)-gamma stimulation. Immunohistochemical staining revealed substantial and predominant expression of B7-H1 on human primary oral SCC. A murine SCC line, NR-S1, neither expressed B7-H1 nor B7-DC, but induced B7-H1 by IFN-gamma stimulation in culture and the inoculation in vivo. Although NR-S1 tumors grew progressively in immunocompetent syngeneic mice, the administration of blocking anti-B7-Hl or anti-PD-1 mAb significantly inhibited the tumor growth, suggesting the negative regulation of host immune responses by the PD-1:B7-H1 pathway. Our results demonstrate that B7-H1 is predominantly induced on oral SCC within the B7 family molecules. A successful inhibition of tumor growth by blockade of the PD-1:B7-H1 pathway may implicate a new approach for immunotherapy of oral SCC.
(キーワード): B7 family molecules / B7-H1 / Immunoregulation / Oral cancer
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.oraloncology.2005.07.013
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 16271509; ● Summary page in Scopus @ Elsevier: 2-s2.0-32644484710

(DOI: 10.1016/j.oraloncology.2005.07.013, PubMed: 16271509, Elsevier: Scopus) Yuichiro Ohigashi, Masayuki Sho, Yukishige Yamada, Yoshikazu Tsurui, Kaoru Hamada, Naoya Ikeda, Takashi Mizuno, Ryo Yoriki, Hisanori Kashizuka, Katsunari Yane, Fumihiko Tsushima, Noriko Otsuki, Hideo Yagita, Miyuki Azuma and Yoshiyuki Nakajima :
Clinical significance of programmed death-1 ligand-1 and programmed death-1 ligand-2 expression in human esophageal cancer,
Clinical Cancer Research, 11, 8, 2947-2953, 2005.

(要約): The negative regulatory programmed death-1/programmed death-1 ligand (PD-1/PD-L) pathway in T-cell activation has been suggested to play an important role in tumor evasion from host immunity. In this study, we investigated the expression of PD-L1 and PD-L2 in human esophageal cancer to define their clinical significance in patients' prognosis after surgery. PD-L1 and PD-L2 gene expression was evaluated in 41 esophagectomy patients by real-time quantitative PCR. The protein expression was also evaluated with newly generated monoclonal antibodies that recognize human PD-L1 (MIH1) and PD-L2 (MIH18). The protein and the mRNA levels of determination by immunohistochemistry and real-time quantitative PCR were closely correlated. PD-L-positive patients had a significantly poorer prognosis than the negative patients. This was more pronounced in the advanced stage of tumor than in the early stage. Furthermore, multivariate analysis indicated that PD-L status was an independent prognostic factor. Although there was no significant correlation between PD-L1 expression and tumor-infiltrating T lymphocytes, PD-L2 expression was inversely correlated with tumor-infiltrating CD8(+) T cells. These data suggest that PD-L1 and PD-L2 status may be a new predictor of prognosis for patients with esophageal cancer and provide the rationale for developing novel immunotherapy of targeting PD-1/PD-L pathway.
(キーワード): Aged / Antigens, CD / B7-1 Antigen / B7-H1 Antigen / Esophageal Neoplasms / Esophagus / 女性 (female) / Gene Expression Regulation, Neoplastic / Humans / 免疫組織化学 (immunohistochemistry) / Intercellular Signaling Peptides and Proteins / 男性 (male) / Membrane Glycoproteins / Middle Aged / Peptides / Prognosis / Programmed Cell Death 1 Ligand 2 Protein / RNA, Messenger / Survival Analysis
(出版サイトへのリンク): ● Publication site (DOI): 10.1158/1078-0432.CCR-04-1469
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 15837746; ● Summary page in Scopus @ Elsevier: 2-s2.0-20244384862

(DOI: 10.1158/1078-0432.CCR-04-1469, PubMed: 15837746, Elsevier: Scopus) 石川基, 坂本一郎, 依田哲也, 川崎智弘, 今井英樹, 櫻井仁亨, 津島文彦, 関根聡, 塚原宏泰, 宮村壽―, 依田泰, 小村健 :
習慣性顎関節脱臼に対する開口訓練と自己整復操作についての臨床的観察,
日本顎関節学会雑誌, 17, 1, 15-19, 2005年.

(要約): 習慣性顎関節脱臼とは, 下顎頭が下顎窩から逸脱し自力での復帰がきわめて困難かあるいはできなくなった状態が習慣性に生じるものである．非観血的療法として過開口制限指導などがあるが, 十分な効果が得られないことがある．本症患者には日常生活における脱臼発生の恐怖感が強く, そのため正常な顎運動を自制して咀嚼筋がこわばっているものが多いことに著者らは注目し, 過開口制限とは逆の開口訓練と自己整復操作を指導した．2002年2月から2003年10月に当科を受診した習慣性顎関節脱臼患者のうち, 触診にて関節雑音を認めなかった10例について検討した．年齢18∼72歳 (平均34歳), 男性2例女性8例, 病悩期間10日∼8年 (平均3.7年) で, 脱臼の発生頻度はさまざまであった．初診時, 自己整復操作指導後, 治療開始1か月後および最終観察時で, 脱臼の発生の有無・塚原らが報告した予測開口域に対する無痛自力最大開口域の割合・脱臼に対する恐怖感の有無・関節雑音の発生の有無の4項目を検討した．平均観察期間15.8か月 (8か月∼2年4か月) であった．治療開始1か月以降には全症例において脱臼の発生を認めず, 予測開口域に対する無痛自力最大開口域の割合は初診時に比べて有意に増大した．初診時全症例で認められた脱臼に対する恐怖感は, 自己整復操作指導後にすべての症例で消失した．また観察期間中にすべての症例で, 関節雑音の発生は認められなかった．
(キーワード): habitual luxation of the temporomandibular joint / mouth-opening exercise / self-reduction manipulation / non-surgical treatment / 習慣性顎関節脱臼 / 開口訓練 / 自己整復操作 / 非観血的療法
(出版サイトへのリンク): ● Publication site (DOI): 10.11246/gakukansetsu1989.17.15
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390001204421382272; ● Search Scopus @ Elsevier (DOI): 10.11246/gakukansetsu1989.17.15

(DOI: 10.11246/gakukansetsu1989.17.15, CiNii: 1390001204421382272) Noritaka Koga, Ichi Jun Suzuki, Hisanori Kosuge, Go Haraguchi, Yasuyuki Onai, Hideki Futamatsu, Yasuhiro Maejima, Ryo Gotoh, Hitoshi Saiki, Fumihiko Tsushima, Miyuki Azuma and Mitsuaki Isobe :
Blockade of the interaction between PD-1 and PD-L1 accelerates graft arterial disease in cardiac allografts,
Arteriosclerosis, Thrombosis, and Vascular Biology, 24, 11, 2057-2062, 2004.

(要約): Programmed death-1 (PD-1), a member of the CD28 family, has been identified. PD-1 is involved in the negative regulation of some immune responses. We evaluated the role of PD-ligand 1 (PD-L1) in graft arterial disease (GAD) of cardiac allografts and in smooth muscle cells (SMCs). C57BL/6 murine hearts were transplanted into B6.C-H2<bm12>KhEg mice for examination of GAD. PD-L1 was expressed in SMCs of the thickened intima in the graft coronary arteries, and administration of anti-PD-L1 monoclonal antibody (mAb) enhanced the progression of GAD (luminal occlusion: 55+/-5.0% versus 9.8+/-4.3%, P<0.05). The expressions of interferon gamma (IFN-gamma) and tumor necrosis factor alpha of cardiac allografts were upregulated in response to anti-PD-L1 mAb treatment. In vitro, PD-L1 expression was induced in SMCs in response to IFN-gamma stimulation. Sensitized splenocytes increased SMC proliferation, and anti-PD-L1 mAb in combination with IFN-gamma stimulation increased this proliferation. The PD-L1 pathway regulates both the proliferation of SMCs and GAD. Thus, control of this interaction is a promising strategy for suppression of GAD.
(キーワード): B7 family / Graft arterial disease / Immune system / Smooth muscle cell / Transplantation
(出版サイトへのリンク): ● Publication site (DOI): 10.1161/01.ATV.0000145015.23656.e4
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 15374847; ● Summary page in Scopus @ Elsevier: 2-s2.0-20844442619

(DOI: 10.1161/01.ATV.0000145015.23656.e4, PubMed: 15374847, Elsevier: Scopus) Pornpan Youngnak-Piboonratanakit, Fumihiko Tsushima, Noriko Otsuki, Hanna Igarashi, Utako Machida, Hideyuki Iwai, Yuzo Takahashi, Ken Omura, Hiroo Yokozeki and Miyuki Azuma :
The expression of B7-H1 on keratinocytes in chronic inflammatory mucocutaneous disease and its regulatory role,
Immunology Letters, 94, 3, 215-222, 2004.

(要約): PD-1 and its ligands, B7-H1/PD-L1 and B7-DC/PD-L2, have been identified recently as CD28-B7 family molecules that are implicated in immune regulation. Lichen planus (LP) is a T cell-mediated chronic inflammatory mucocutaneous disease. We investigated the expression and function of PD-1 and its two ligands in LP. Immunohistochemical examination revealed the abundant expression of PD-1 and B7-H1 in infiltrating T cells and macrophages, and lower-level expression of B7-DC on macrophages in the subepithelium. Interestingly, substantial expression of B7-H1 on keratinocytes (KCs) was found close to the numerous T cell infiltrates in the subepithelium. Unstimulated cultured KCs expressed both B7-H1 and B7-DC, and their expression was upregulated by proinflammatory cytokines, particularly IFN-gamma. The T-cell proliferative responses and IFN-gamma production that were induced by IFN-gamma-treated KCs were augmented preferentially by anti-B7-H1 mAb, but not by anti-B7-DC mAb. These results indicate the regulatory role of B7-H1 on KCs in the interactions with T cells. Our results suggest that the induction of B7-H1 on KCs may play an important role in tolerance induction in the inflamed oral mucosa and skin.
(キーワード): B7-H1/PD-L1 / Keratinocyte / PD-1 / Regulation / T細胞 (T cells)
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.imlet.2004.05.007
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 15275969; ● Summary page in Scopus @ Elsevier: 2-s2.0-3242697844

(DOI: 10.1016/j.imlet.2004.05.007, PubMed: 15275969, Elsevier: Scopus) Atsushi Nakazawa, Iris Dotan, Jens Brimnes, Matthieu Allez, Ling Shao, Fumihiko Tsushima, Miyuki Azuma and Lloyd Mayer :
The Expression and Function of Costimulatory Molecules B7h and B7-H1 on Colonic Epithelial Cells,
Gastroenterology, 126, 5, 1347-1357, 2004.

(要約): Previous studies have suggested that intestinal epithelial cells (IECs) may function as antigen-presenting cells for CD4+ and CD8+ T cells. However, these cells fail to express conventional costimulatory molecules (CD80, CD86), leading to the possibility that antigen presented by normal IECs could result in anergy. Other members of the B7 family have recently been identified. B7h interacts with inducible costimulator (ICOS) on T cells and provides a positive signal, whereas B7-H1 and B7-DC interact with PD-1 and transmit an inhibitory signal. Our aim was to determine whether IECs express novel B7 family members and whether these molecules play a role in IEC:T-cell interactions. B7h and B7-H1 expression was assessed in isolated IECs and IEC lines. The functional role of B7h and B7-H1 in the interaction between IECs and T cells was assessed in coculture experiments using purified anti-B7h or B7-H1 monoclonal antibodies (mAbs), B7h immunoglobulin (Ig), or B7-H1 fusion proteins. B7h and B7-H1 messenger RNA was detected in IEC lines and IECs from healthy controls and patients with inflammatory bowel disease (IBD). IECs from patients with IBD but not healthy controls expressed B7h and B7-H1 protein on their surface. Proliferation of IEC-stimulated T cells was inhibited only by B7h immunoglobulin treatment, whereas interferon gamma secretion in these cocultures was inhibited by both anti-B7h mAb and B7h Ig. No difference was seen between IBD or normal IEC populations. These data suggest that the B7h-ICOS costimulatory pathway may be important in IEC:T-cell interactions.
(キーワード): Antigens, CD / B7-1 Antigen / B7-H1 Antigen / Blood Proteins / 細胞分裂 (cell division) / Cell Line, Tumor / Coculture Techniques / Colon / Humans / Inducible T-Cell Co-Stimulator Ligand / Interferon-gamma / Intestinal Mucosa / Membrane Glycoproteins / Peptides / Proteins / Tリンパ球 (T lymphocytes)
(出版サイトへのリンク): ● Publication site (DOI): 10.1053/j.gastro.2004.02.004
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 15131796; ● Summary page in Scopus @ Elsevier: 2-s2.0-2142711024

(DOI: 10.1053/j.gastro.2004.02.004, PubMed: 15131796, Elsevier: Scopus) Koichiro Matsumoto, Hiromasa Inoue, Takako Nakano, Miyuki Tsuda, Yuki Yoshiura, Satoru Fukuyama, Fumihiko Tsushima, Tomoaki Hoshino, Hisamichi Aizawa, Hisaya Akiba, Drew Pardoll, Nobuyuki Hara, Hideo Yagita, Miyuki Azuma and Yoichi Nakanishi :
B7-DC regulates asthmatic response by an IFN-gamma-dependent mechanism.,
The Journal of Immunology, 172, 4, 2530-2541, 2004.

(要約): B7-H1 (PD-L1) and B7-DC (PD-L2) are the ligands for programmed death-1 (PD-1), which is a member of the CD28/CTLA-4 family and has been implicated in peripheral tolerance. We investigated the roles of B7-H1 and B7-DC in a murine OVA-induced allergic asthma model. B7-H1 was constitutively expressed on dendritic cells, macrophages, B cells, and T cells in the lungs of naive mice, and its expression could be dramatically increased after allergen challenge. In contrast, B7-DC expression was scarcely expressed on dendritic cells in naive mice, but was up-regulated after allergen challenge, although the up-regulation of B7-DC expression on macrophages was minimal. Treatment of mice with anti-B7-DC mAb at the time of allergen challenge, but not at the time of sensitization, significantly increased their airway hyper-reactivity and eosinophilia. Such treatment also resulted in the increased production of IL-5 and IL-13, and decreased IFN-gamma production in the lungs and draining lymph node cells. These changes were diminished when mice were depleted of IFN-gamma by anti-IFN-gamma mAb pretreatment. Interestingly, treatment with anti-B7-H1 or anti-PD-1 mAb did not significantly affect the asthmatic response. These results suggest a unique role for B7-DC in the regulation of asthmatic response through an IFN-gamma-dependent, but PD-1-independent, mechanism.
(キーワード): Allergens / Animals / Antibodies, Monoclonal / Antigens, Differentiation / Asthma / B7-1 Antigen / B7-H1 Antigen / Blood Proteins / Bronchial Hyperreactivity / Dendritic Cells / Disease Models, Animal / Interferon-gamma / Interleukin-13 / Interleukin-5 / Leukocytes / Lung / Lymph Nodes / 男性 (male) / Membrane Glycoproteins / Mice / Mice, Inbred BALB C / Ovalbumin / Peptides / Programmed Cell Death 1 Ligand 2 Protein / Programmed Cell Death 1 Receptor / T-Lymphocyte Subsets / Up-Regulation
(出版サイトへのリンク): ● Publication site (DOI): 10.4049/jimmunol.172.4.2530
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 14764726; ● Summary page in Scopus @ Elsevier: 2-s2.0-10744226932

(DOI: 10.4049/jimmunol.172.4.2530, PubMed: 14764726, Elsevier: Scopus) Fumihiko Tsushima, Hideyuki Iwai, Noriko Otsuki, Masaaki Abe, Sachiko Hirose, Tomohide Yamazaki, Hisaya Akiba, Hideo Yagita, Yuzo Takahashi, Ken Omura, Ko Okumura and Miyuki Azuma :
Preferential contribution of B7-H1 to programmed death-1-mediated regulation of hapten-specific allergic inflammatory responses,
European Journal of Immunology, 33, 10, 2773-2782, 2003.

(要約): Programmed death-1 (PD-1) and its ligands, B7-H1/PD-L1 and B7-DC/PD-L2, are new CD28-B7 family members that may be involved in the regulation of immune responses. We examined the roles of these molecules in mouse hapten-induced contact hypersensitivity (CH). Administration of anti-PD-1 mAb at sensitization significantly enhanced and prolonged ear swelling. Treatment with anti-B7-H1 mAb, but not anti-B7-DC mAb, also enhanced CH reactions. The anti-PD-1 mAb treatment at sensitization significantly increased the T cell number of draining lymph nodes (DLN). B7-H1 was induced on activated T cells and antigen-presenting cells (APC) in the skin and the DLN, whereas B7-DC expression was restricted to dendritic cells (DC) in the dermis and the DLN. A particular subset of DC, B7-H1(+)B7-DC(-)CD86(low), was found in sensitized DLN. The blockade of B7-H1, but not B7-DC, dramatically enhanced the initial T cell proliferative responses against hapten-pulsed DLN APC, suggesting the preferential contribution of B7-H1 to the T cell-APC interaction. Our results demonstrate the regulatory role of PD-1 and the differential roles of B7-H1 and B7-DC in hapten-induced immune responses. The PD-1-B7-H1 pathway may play a unique role in regulating inflammatory responses.
(キーワード): Contract hypersensitivity / Dendritic cells / Regulation / Tolerance
(出版サイトへのリンク): ● Publication site (DOI): 10.1002/eji.200324084
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 14515261; ● Summary page in Scopus @ Elsevier: 2-s2.0-0242366612

(DOI: 10.1002/eji.200324084, PubMed: 14515261, Elsevier: Scopus) Hideyuki Iwai, Masaaki Abe, Sachiko Hirose, Fumihiko Tsushima, Katsunari Tezuka, Hisaya Akiba, Hideo Yagita, Ko Okumura, Hitoshi Kohsaka, Nobuyuki Miyasaka and Miyuki Azuma :
Involvement of inducible costimulator-B7 homologous protein costimulatory pathway in murine lupus nephritis,
The Journal of Immunology, 171, 6, 2848-2854, 2003.

(要約): Inducible costimulator (ICOS)-B7 homologous protein (B7h) is a new member of the CD28-B7 family of costimulatory molecules that regulates T cell-dependent humoral immune responses. In this study, we examined the involvement of this costimulatory pathway in the development and progression of lupus in NZB/W F(1) mice. Expression of ICOS on T cells was enhanced with disease progression, whereas B7h expression on B cells was down-regulated. Administration of anti-B7h mAb before the onset of renal disease significantly delayed the onset of proteinuria and prolonged survival. Blockade of B7h effectively inhibited all subclasses of IgG autoantibody production and accumulation of both Th1 and Th2 cells. Hypercellularity and deposition of IgG and C3 in glomeruli were significantly reduced. B7h blockade after the onset of proteinuria prevented the disease progression and improved the renal pathology. Our results demonstrated the involvement of the ICOS-B7h costimulatory pathway in the pathogenesis of lupus nephritis, and the blockade of this pathway may be beneficial for the treatment of human systemic lupus erythematosus.
(キーワード): Adoptive Transfer / Animals / Antibodies, Antinuclear / Antibodies, Monoclonal / Antigens, Differentiation, T-Lymphocyte / Crosses, Genetic / Down-Regulation / Drug Administration Schedule / 女性 (female) / Immunoglobulin G / Inducible T-Cell Co-Stimulator Ligand / Inducible T-Cell Co-Stimulator Protein / Injections, Intraperitoneal / Ligands / Lupus Nephritis / Lymphocyte Subsets / Mice / Mice, Inbred NZB / Mice, SCID / トランスジェニックマウス (transgenic mice) / Ovalbumin / Protein Biosynthesis / Proteins / Signal Transduction / Spleen / Tリンパ球 (T lymphocytes)
(出版サイトへのリンク): ● Publication site (DOI): 10.4049/jimmunol.171.6.2848
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12960306; ● Summary page in Scopus @ Elsevier: 2-s2.0-0041331737

(DOI: 10.4049/jimmunol.171.6.2848, PubMed: 12960306, Elsevier: Scopus) D. Alan Salama, Tanuja Chitnis, Jaime Imitola, Hisaya Akiba, Fumihiko Tsushima, Miyuki Azuma, Hideo Yagita, H. Mohamed Sayegh and J. Samia Khoury :
Critical role of the programmed death-1 (PD-1) pathway in regulation of experimental autoimmune encephalomyelitis,
The Journal of Experimental Medicine, 198, 1, 71-78, 2003.

(要約): Experimental autoimmune encephalomyelitis (EAE) is mediated by autoantigen-specific T cells dependent on critical costimulatory signals for their full activation and regulation. We report that the programmed death-1 (PD-1) costimulatory pathway plays a critical role in regulating peripheral tolerance in murine EAE and appears to be a major contributor to the resistance of disease induction in CD28-deficient mice. After immunization with myelin oligodendrocyte glycoprotein (MOG) there was a progressive increase in expression of PD-1 and its ligand PD-L1 but not PD-L2 within the central nervous system (CNS) of mice with EAE, peaking after 3 wk. In both wild-type (WT) and CD28-deficient mice, PD-1 blockade resulted in accelerated and more severe disease with increased CNS lymphocyte infiltration. Worsening of disease after PD-1 blockade was associated with a heightened autoimmune response to MOG, manifested by increased frequency of interferon gamma-producing T cells, increased delayed-type hypersensitivity responses, and higher serum levels of anti-MOG antibody. In vivo blockade of PD-1 resulted in increased antigen-specific T cell expansion, activation, and cytokine production. Interestingly, PD-L2 but not PD-L1 blockade in WT animals also resulted in disease augmentation. Our data are the first demonstration that the PD-1 pathway plays a critical role in regulating EAE.
(キーワード): 自己免疫 (autoimmunity) / Costimulation / EAE / T細胞 (T cell) / Tolerance
(出版サイトへのリンク): ● Publication site (DOI): 10.1084/jem.20022119
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 12847138; ● Summary page in Scopus @ Elsevier: 2-s2.0-0037477604

(DOI: 10.1084/jem.20022119, PubMed: 12847138, Elsevier: Scopus) 有川稔多加, 高橋雄三, 戸田ひとみ, 高橋悦子, 茂木世紀, 津島文彦, 小村健 :
口腔粘膜疾患に対するフルオシノニドならびにプロピオン酸クロベタゾール口腔用軟膏の治療効果に関する臨床的検討,
日本口腔粘膜学会雑誌, 8, 2, 45-51, 2002年.

(キーワード): フルオシノニド / プロピオン酸クロベタゾール / 粘膜類天疱瘡 / 扁平苔癬
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1573387449875086336

(CiNii: 1573387449875086336)

MISC

Atsushi Uesugi, Fumihiko Tsushima, Makoto Kodama, Takeshi Kuroshima, Jinkyo Sakurai and Hiroyuki Harada :
Oral granuloma in a pediatric patient with chronic graft-versus-host disease: a case report,
World Journal of Clinical Cases, 8, 22, 5663-5669, 2020.

(要約): Oral mucositis is often observed with graft-versus-host disease (GVHD); however, the occurrence of oral granuloma is rare. The rapid increase in granulomatous lesions should be distinguished from malignant tumors in patients with GVHD because malignant diseases can develop in those patients. This case is the youngest pediatric patient with granuloma associated with GVHD. The patient was a 1-year and 5-mo-old girl who presented to our department for the management of oral nodules. At the age of 5 mo, she was diagnosed with primary immunodeficiency disease, cord blood transplant was performed at 11 mo and bone marrow transplant at 1 year of age. After transplantation, GVHD and oral mucositis developed, and tacrolimus was administered. Interestingly, nodules appeared on the lower lip and buccal mucosa, which spontaneously disappeared. Then, a new nodule appeared on the left lateral border of the tongue. Resection was performed and the histopathological diagnosis was granuloma. The origin of these nodules were considered to be the fibroblasts activated under inflammation caused by GVHD because the calcineurin inhibitor tacrolimus acted on their proliferation. It is very important to distinguish oral granulomatous lesions from malignancies if GVHD is present at the base and if immunosuppressive agents and steroids are being administered.
(徳島大学機関リポジトリ): ● Metadata: 2009091
(出版サイトへのリンク): ● Publication site (DOI): 10.12998/wjcc.v8.i22.5663
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 33344558; ● Search Scopus @ Elsevier (PMID): 33344558; ● Search Scopus @ Elsevier (DOI): 10.12998/wjcc.v8.i22.5663

(徳島大学機関リポジトリ: 2009091, DOI: 10.12998/wjcc.v8.i22.5663, PubMed: 33344558) D. Alan Salama, Tanuja Chitnis, Jaime Imitola, I. Mohammed Javeed Ansari, Hisaya Akiba, Fumihiko Tsushima, Miyuki Azuma, Hideo Yagita, H. Mohamed Sayegh and J. Samia Khoury :
Erratum: (The Journal of Experimemal Medicine (July 7, 2003) 198:1 (71-78)),
The Journal of Experimental Medicine, 198, 4, 677, 2003.

(出版サイトへのリンク): ● Publication site (DOI): 10.1084/jem.2003071719871corr
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-0041419629

(DOI: 10.1084/jem.2003071719871corr, Elsevier: Scopus)

総説・解説

杉田好彦, 森山雅文, 津島文彦, 長谷川博雅, 河野憲司, 中村誠司, 前田初彦, 岩渕博史, 安彦善裕, 菅原由美子, 伊東大典, 川又均 :
口腔扁平苔癬研究の現況と将来の展望,
日本口腔内科学会雑誌, 30, 1, 1-12, 2024年.

(要約): 口腔扁平苔癬は難治性の炎症性皮膚粘膜疾患である．その発症機序や治療法に関してはこれまで盛んに研究がなされ，膨大な知見が得られているものの，残念ながら本疾患を解明し十分に制御するには至っていない．本学会のOLP委員会は，先の10年間に臨床口腔病理学会と合同で開催した扁平苔癬ワーキンググループの活動を引き継ぎ，さらに発展させることを目的として設立された．この総説では，口腔扁平苔癬について現在得られている知見を本委員会で可能な限り収集して紹介するとともに，将来的に研究をどのように展開すべきかを提言する．
(キーワード): 口腔扁平苔癬 / 発症機序 / T細胞 (T cell) / 上皮破壊 / 臨床マーカー
(出版サイトへのリンク): ● Publication site (DOI): 10.6014/jjsom.30.1
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390021218877942400; ● Search Scopus @ Elsevier (DOI): 10.6014/jjsom.30.1

(DOI: 10.6014/jjsom.30.1, CiNii: 1390021218877942400) 川又均, 伊東大典, 津島文彦, 中村誠司, 河野憲司, 菅原由美子, 森山雅文, 岩渕博史, 安彦善裕, 前田初彦, 杉田好彦, 長谷川博雅, 小宮山雄介, 白石怜, 和久井崇大 :
口腔扁平苔癬の治療方法とその臨床評価に関する文献レビューとタスクフォースコンセンサス,
日本口腔内科学会雑誌, 29, 2, 21-35, 2023年.

(要約): 本稿は，日本口腔内科学会OLP委員会内の第二期口腔扁平苔癬ワーキンググループが，公開されている論文(国際誌，国内誌)を基に，口腔扁平苔癬に対して，現在行われている治療方法をレビューし，タスクフォースコンセンサスとして，その治療方法と効果判定の方法を記述的総説としてまとめた．今後，本邦で臨床治験などを行う上で，臨床・病理学的効果を評価する指標となれば幸いである．口腔扁平苔癬は，病態としてあるいは自覚・他覚症状として，急性(acute phase)か慢性(chronic phase)か，慢性であれば，慢性活動性(chronic active phase)か慢性非活動性(chronic nonactive phase)かを判断する必要がある．したがって，治療のゴールを，癌化の阻止を念頭に置きながら，完全治癒を目指すのか，慢性非活動性の維持を目指すのか，を明確にしながら，種々の治療方法を選択，開発していかなければならないと考えられる．
(キーワード): 口腔扁平苔癬 / 治療方法 / 治療評価 / 慢性活動性 / 慢性非活動性
(出版サイトへのリンク): ● Publication site (DOI): 10.6014/jjsom.29.21
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390019204223693056; ● Search Scopus @ Elsevier (DOI): 10.6014/jjsom.29.21

(DOI: 10.6014/jjsom.29.21, CiNii: 1390019204223693056) 津島文彦, 原田浩之 :
口腔粘膜疾患の診かた,
東京医科歯科大学歯科東京同窓会報, 197, 54-60, 2021年. Yujia Cao, Lu Zhang, Pacharee Ritprajak, Fumihiko Tsushima, Pornpan Youngnak-Piboonratanakit, Yosuke Kamimura, Masaaki Hashiguchi and Miyuki Azuma :
Immunoregulatory molecule B7-H1 (CD274) contributes to skin carcinogenesis,
Cancer Research, 71, 14, 4737-4741, Jul. 2011.

(要約): B7-H1 (CD274), a member of the B7 family of coinhibitory molecules, is often induced in human tumors and its expression is closely correlated with a poor prognosis or higher malignancy grade. Tumor-associated B7-H1 is implicated in mechanisms of immune escape. Under inflammatory conditions, B7-H1 is also inducible in normal epithelial cells, but little is known about its involvement in the conversion of normal cells to tumor cells. We recently found that skin-specific expression of B7-H1 accelerates chemically induced carcinogenesis of squamous cell carcinoma (SCC), despite impaired skin inflammatory responses, in B7-H1 transgenic (B7-H1tg) mice. B7-H1tg-derived keratinocytes (KC) and SCCs exhibited a marked reduction of E-cadherin, and B7-H1tg-originated SCCs showed elevated expression of the transcription factors Slug and Twist, suggesting that B7-H1 overexpression in KCs promotes the epithelial-mesenchymal transition and accelerates carcinogenesis. This review discusses the diverse functions of B7-H1 in carcinogenesis and cancer progression, and considers future directions for developing cancer therapy targeting B7-H1.
(キーワード): Animals / Antigens, CD / B7-1 Antigen / B7-H1 Antigen / Carcinoma, Squamous Cell / Cell Transformation, Neoplastic / Humans / Membrane Glycoproteins / Mice / Peptides / Skin Neoplasms
(出版サイトへのリンク): ● Publication site (DOI): 10.1158/0008-5472.CAN-11-0527
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 21730022; ● Summary page in Scopus @ Elsevier: 2-s2.0-79960425148

(DOI: 10.1158/0008-5472.CAN-11-0527, PubMed: 21730022, Elsevier: Scopus) Fumihiko Tsushima, Yosuke Kamimura and Miyuki Azuma :
Cancer Immunotherapy by Manipulation of Costimulatory Molecules,
Biotherapy, 17, 6, 566-572, Nov. 2003.

(キーワード): Costimulation / Regulation / T-cell activation / Tumor immunity
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-0348142048

(Elsevier: Scopus)

講演・発表

Fumihiko Tsushima and H. Harada :
Clinical evaluation of malignant transformation in oral leukoplakia and oral lichen planus,
The 34th Annual Conference of Taiwanese Association of Oral and Maxillofacial Surgeons, Online, Mar. 2022. 堀内信也, 渡邉佳一郎, 高田一樹, 梅田雛代, 安陪晋, 栗尾奈愛, 津島文彦, 田中栄二 :
幼少期の下顎頭骨折が疑われた顔面非対称症症例の長期治療例,
日本顎関節学会雑誌(第39回日本顎関節学会総会・学術大会抄録集), 38, 39, 143, 2026年7月. 水頭英樹, 奥由里, 青田桂子, 津島文彦, 鎌田久美子, 栗尾奈愛 :
パノラマX線画像による下顎管の明瞭度と骨質・顎下腺窩の関係,
日本口腔科学会雑誌, 2026年4月. 津島文彦, 原田浩之 :
口腔乾燥症と口腔内症状,
第33回日本口腔内科学会・第32回日本口腔感染症学会・第36回日本口腔診断学会・第43回日本歯科薬物療法学会 4学会合同学術大会, 2023年9月. 津島文彦, 原田浩之 :
口腔扁平苔癬と全身疾患との関連性について,
第32回日本口腔内科学会・第33回日本臨床口腔病理学会・第35回日本口腔診断学会 3学会合同学術大会, 2022年9月. 津島文彦, 原田浩之 :
口腔扁平苔癬と全身疾患との関連性について,
第37回日本歯科心身医学会総会・学術大会, 2022年7月. 津島文彦, 原田浩之 :
歯科領域における口腔カンジダ症の現状と問題点,
第62回日本医真菌学会総会・学術集会, 2018年9月.

研究会・報告書

津島文彦, 原田浩之 :
歯科の最新テクノロジーダチョウ抗体エキス配合剤を用いた口腔ケア歯周治療への応用と可能性,
デンタルダイヤモンド, 45, 3, 94-98, 2020年. 津島文彦, 原田浩之 :
こんな病変は危ない!前がん病変(口腔潜在的悪性疾患)の症状別鑑別と対応,
口腔外科ハンドマニュアル`20, 23-30, 2020年. 津島文彦, 原田浩之 :
歯科・口腔外科領域この5年の進歩,
内科, 124, 3, 2002-2003, 2019年. 津島文彦, 原田浩之 :
口腔領域における特異性炎,
別冊Bio Clinica: 慢性炎症と疾患, 7, 3, 65-69, 2018年. 津島文彦, 神村洋介, 東みゆき :
癌細胞のシグナル伝達異常補助シグナル操作による癌免治療,
Biotherapy, 17, 566-572, 2003年. 津島文彦, 岩井秀之, 東みゆき :
ICOS(inducible costimulator)とTh2,
アレルギー科, 291-297, 2001年. 清水六花, 大迫利光, 釘本琢磨, 西井直人, 津島文彦, 原田浩之 :
多様な口腔症状を呈したSotos症候群の1例,
日本口腔外科学会雑誌, 69, 1, 22-26, 2023年1月.

(要約): Sotos syndrome is a genetic disorder characterized by overgrowth, megalocephaly, and mental retardation due to mutations or deletions in the nuclear receptor binding SET Domain protein 1 (NSD1) gene. We report a case of Sotos syndrome with various oral symptoms. The patient was 28-year-old female who was referred to our hospital with spontaneous pain in the right maxillary premolar region. Upon visiting a pediatric hospital, she was suspected of having Sotos syndrome because she was showing open bite, high-arched palate and congenital absence of permanent teeth, which are characteristic maxillofacial findings for Sotos syndrome. Imaging findings showed impaction of the right second premolar and a cystic lesion around the crown. We performed a cystectomy and the impacted right second premolar extraction under general anesthesia. The histopathological diagnosis was dentigerous cyst. The patient had previously undergone an orthodontic examination at our hospital at the age of 10, however this disease was not suspected at the time. It is important to spread awareness of Sotos syndrome and contribute to diagnosis and treatment in collaboration with other departments.
(キーワード): Sotos症候群 / NSD1 / 埋伏歯
(出版サイトへのリンク): ● Publication site (DOI): 10.5794/jjoms.69.22
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390014016715430144; ● Search Scopus @ Elsevier (DOI): 10.5794/jjoms.69.22

(DOI: 10.5794/jjoms.69.22, CiNii: 1390014016715430144) 里村一人, 太田嘉英, 栗田浩, 山田慎一, 小笠原徹, 原田浩之, 津島文彦, 加藤逸郎, 藤森真樹, 山近重生, 日本口腔外科学会マニュアル改訂委員会, 一般社団法人日本病院薬剤師会, 重篤副作用総合対策検討会 :
重篤副作用疾患別対応マニュアル:抗がん剤による口内炎,
厚生労働省HP, 1-31, 2023年. 里村一人, 太田嘉英, 栗田浩, 山田慎一, 小笠原徹, 原田浩之, 津島文彦, 加藤逸郎, 藤森真樹, 山近重生, 日本口腔外科学会マニュアル改訂委員会, 一般社団法人日本病院薬剤師会, 重篤副作用総合対策検討会 :
重篤副作用疾患別対応マニュアル:薬剤性口内炎,
厚生労働省HP, 1-24, 2023年. Risa Shimizu, Fumihiko Tsushima, Ruri Komiya, Yuko Yamagata and Hiroyuki Harada :
Fixed Drug Eruption Associated with Nonsteroidal Anti-Inflammatory Drugs for Menstrual Pain: A Case Report,
Case Reports in Dermatology, 14, 1, 6-11, Jan. 2022.

(キーワード): Fixed drug eruption / Hyperpigmentation / Menstrual pain / Nonsteroidal anti-inflammatory drugs
(出版サイトへのリンク): ● Publication site (DOI): 10.1159/000520534
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-85123526257

(DOI: 10.1159/000520534, Elsevier: Scopus) Fumihiko Tsushima, Jinkyo Sakurai, Risa Shimizu and Hiroyuki Harada :
A case report of oral lichenoid lesions related to cross-reactivity between nickel and palladium,
Contact Dermatitis, 85, 6, 700-701, Jul. 2021.

(キーワード): case report / cross-reactivity / metal allergy / nickel / oral lichenoid lesions / palladium
(出版サイトへのリンク): ● Publication site (DOI): 10.1111/cod.13932
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 34250616; ● Summary page in Scopus @ Elsevier: 2-s2.0-85111281700

(DOI: 10.1111/cod.13932, PubMed: 34250616, Elsevier: Scopus) 家村綾子, 柳町昌克, 田崎彰久, 廣田由佳, 大西威一郎, 神谷尚宏, 津島文彦, 原田浩之, 木下伊寿美, 孝橋賢一, 小田義直, 高木正稔, 明石巧, 朝蔭孝宏, 森尾友宏 :
出生時から開口障害を認めたデスモイド型線維腫症,
日本小児科学会雑誌, 125, 4, 619-624, 2021年4月.

(キーワード): 開口障害 / デスモイド型線維腫症 / 頭頸部 / 腫瘍性病変 / β-catenin
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1520290884715896832

(CiNii: 1520290884715896832) Yusuke Higuchi, Fumihiko Tsushima, Kanako Sumikura, Yuriko Sato, Hiroyuki Harada, Kou Kayamori and Tohru Ikeda :
Diagnosis and treatment of oral focal mucinosis: A case series,
Journal of Medical Case Reports, 13, 1, 108, Apr. 2019.

(要約): Oral focal mucinosis, the oral counterpart of cutaneous focal mucinosis, is a rare disease. As it has no characteristic clinical or radiological features, diagnosis is established by histopathological and immunohistological examination. We present three cases of oral focal mucinosis occurring in the retromolar (which is extremely rare) and gingival regions. Case 1 involved a 26-year-old Japanese man with radiolucency in the right retromolar region on panoramic radiograph and computed tomography; no obvious protrusion was observed in the region. This finding was clinically diagnosed as a tumor of the retromolar region. Case 2 involved a 60-year-old Japanese woman. A tumor-like mass of tissue was identified on the buccal gingiva at the maxillary right canine and first premolar region. The lesion measured 7 × 6 mm and exhibited elastic hardness and healthy-colored mucosa. The lesion was diagnosed as an epulis. Case 3 involved a 47-year-old Japanese woman. A tumor-like mass of tissue was identified on the buccal gingiva at the maxillary right canine and first premolar region. The lesion measured 10 × 10 mm and exhibited elastic hardness and redness of the surface mucosa. This lesion was also diagnosed as an epulis. Resection was performed in all three cases, and the lesions were histopathologically diagnosed as oral focal mucinosis. Postoperative courses were uneventful and, thus far, there have been no recurrences. Although it is difficult to diagnose oral focal mucinosis based on clinical symptoms and imaging findings, the disease should be considered a possibility when diagnosing benign oral tumors. We believe that an emphasis on histopathologic study is essential to confirm the clinical suspicion.
(キーワード): Gingiva / Oral focal mucinosis / Retromolar region
(出版サイトへのリンク): ● Publication site (DOI): 10.1186/s13256-019-2033-8
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31023388; ● Summary page in Scopus @ Elsevier: 2-s2.0-85064965904

(DOI: 10.1186/s13256-019-2033-8, PubMed: 31023388, Elsevier: Scopus) 上杉篤史, 津島文彦, 清水梨沙, 中川知里, 佐藤潔, 櫻井仁亨, 原田浩之 :
口内炎を契機に診断された第二期梅毒の1例,
日本口腔内科学会雑誌, 25, 1, 16-19, 2019年.

(要約): 口内炎を契機に診断された第二期梅毒の1例を経験した．患者は24歳女性．口内炎の治癒不全を主訴に当科を受診した．舌・口蓋に潰瘍と口峡炎の所見を認めた．TPHA，RPRは定性値，定量値ともに陽性であった．口蓋から生検を行い抗Treponema pallidum抗体による免疫組織化学染色は陽性であった．扁平コンジローマも認め第二期梅毒と診断し，ABPCの投与で治癒に至った．梅毒は口腔病変が先行するため早期発見は重要である．
(キーワード): 口内炎 / 梅毒トレポネーマ / 第二期梅毒
(出版サイトへのリンク): ● Publication site (DOI): 10.6014/jjsom.25.16
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390846609789996160; ● Search Scopus @ Elsevier (DOI): 10.6014/jjsom.25.16

(DOI: 10.6014/jjsom.25.16, CiNii: 1390846609789996160) 上杉篤史, 津島文彦, 横川美咲, 及川悠, 望月裕美, 原田浩之 :
難治性口腔潰瘍を契機として腸管ベーチェット病疑いに至った1例,
日本口腔外科学会雑誌, 65, 3, 194-198, 2018年.

(要約): We report a suspected case of intestinal Behçet's disease diagnosed from a refractory oral ulcer. A 78-year-old man was referred to our department because of intractable ulceration of the oral cavity. The ulcer was located in the mucosa of the left upper lip and measured 38 × 26 mm. No eye symptoms, skin manifestations, or vulvar ulcers were noted, and incisional biopsy revealed no malignancy. The ulcer finally contracted following 2 months of topical steroid administration; however, a month later, a new ulcer appeared on the right buccal mucosa. We referred the patient to the department of gastrointestinal medicine to investigate the association between the intractable ulceration of the oral cavity and gastrointestinal disease. The patient underwent lower gastrointestinal tract endoscopy, which revealed multiple punched-out ulcers in the ileocecal region and large intestine. Accordingly, Crohn's disease was ruled out; however, intestinal tuberculosis was not ruled out completely. Because the inflammation was mainly composed of neutrophils with no sign of infection on pathological examination, intestinal Behçet's disease was suspected. Systemic administration of steroids was initiated; the ulcers in the oral cavity and ileocecum disappeared after 3 months. Long-term follow-up is necessary for ulcer recurrence.
(キーワード): 腸管ベーチェット病 / 難治性口腔潰瘍 / 回盲部潰瘍 / 非特異的炎症反応
(出版サイトへのリンク): ● Publication site (DOI): 10.5794/jjoms.65.194
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390845713068515456; ● Search Scopus @ Elsevier (DOI): 10.5794/jjoms.65.194

(DOI: 10.5794/jjoms.65.194, CiNii: 1390845713068515456) 上杉篤史, 櫻井仁亨, 津島文彦, 佐藤昌, 松本佳奈子, 原田浩之 :
上下顎歯肉に生じたPlasma cell gingivitisの1例,
日本口腔外科学会雑誌, 63, 2, 69-73, 2017年.

(要約): We report a case of plasma cell gingivitis (PCG), which is a chronic inflammatory disorder, histologically characterized by dense plasma cell infiltration in the mucosa. The patient was a 55-year-old woman who presented with well-circumscribed redness associated with diffuse edematous swelling of the maxillary and mandibular anterior-tooth gingiva in December 2010. A second biopsy showed dense inflammatory cell infiltration, including mainly plasma cells, with no atypical cells. Immunohistochemically, these cells were positive for immunoglobulin kappa and lambda light chains. On the basis of the clinical and histopathological findings, the lesion was diagnosed as PCG. The patient was treated with a topical steroid containing antibiotics, and the lesion disappeared 6 months after starting treatment. No recurrence has occurred during 3 years of follow-up.
(キーワード): 開口部形質細胞症 / 歯肉炎 / 形質細胞 / 免疫組織化学 (immunohistochemistry)
(出版サイトへのリンク): ● Publication site (DOI): 10.5794/jjoms.63.69
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390282681509168640; ● Search Scopus @ Elsevier (DOI): 10.5794/jjoms.63.69

(DOI: 10.5794/jjoms.63.69, CiNii: 1390282681509168640) 武元徹, 樺沢勇司, 津島文彦, 平井秀明, 小村健, 原田浩之 :
顎関節部に生じた慢性拡張性血腫の1例,
日本口腔外科学会雑誌, 62, 9, 454-459, 2016年.

(要約): We report a case of chronic expanding hematoma (CEH) in the temporomandibular joint (TMJ) region. A 48-year-old man visited our department because of a mass in the left preauricular region and trismus in November 2012. He had noticed the mass about 2 months previously, which gradually expanded. At initial presentation, examination revealed a hard elastic mass, measuring 22 mm in diameter, in the left preauricular region. The maximum mouth opening was 33 mm. Computed tomography showed a well-demarcated mass lateral to the mandibular condyle, accompanied by condylar bone resorption. On magnetic resonance imaging, the mass showed heterogeneous high signal intensity on T1-weighted images and heterogeneous low signal intensity on T2-weighted images. The mass showed mild uptake on 2-deoxy-2- [¹⁸F] fluoro-D-glucose positron emission tomography. Fine needle aspiration yielded a diagnosis of class I. The clinical diagnosis was a suspected tumor in the left TMJ region. The lesion was extirpated with the patient under general anesthesia in December 2012 and was histopathologically diagnosed as hematoma. On the basis of the clinical course and histopathological findings, the lesion was finally diagnosed as CEH. As of about 3 years after surgery, the postoperative course has been uneventful, with no evidence of recurrence.
(キーワード): 慢性拡張性血腫 / 顎関節 (temporomandibular joint) / 開口障害
(出版サイトへのリンク): ● Publication site (DOI): 10.5794/jjoms.62.454
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390001206533723136; ● Search Scopus @ Elsevier (DOI): 10.5794/jjoms.62.454

(DOI: 10.5794/jjoms.62.454, CiNii: 1390001206533723136) Fumihiko Tsushima, J. Sakurai and H. Harada :
A case of upper gingiva carcinoma with chronic graft-versus-host disease after allogenic bone marrow transplantation,
Australian Dental Journal, 60, 3, 404-407, Jul. 2015.

(要約): Oral squamous cell carcinoma (OSCC) is one of the most common solid tumours occurring after haematopoietic stem cell transplantation (HSCT), especially in patients with chronic graft-versus-host-disease (cGVHD). We describe a case of OSCC that developed in a 51-year-old male 22 years after he had received allogeneic HSCT from his human leukocyte antigen-identical sister as a treatment for acute myelocytic leukaemia. The patient had presented with multiple white patchy lesions on the palatal gingiva and mucosa 16 years after HSCT; these lesions were consistent with the clinical features of cGVHD. Six years later, oral examination and biopsy revealed upper gingival squamous cell carcinoma (SCC) in areas of cGVHD, and he underwent tumour excision. Follow-up examination at 2 years and 4 months after the operation revealed no evidence of recurrence of local SCC or metastasis of the cervical lymph node. The current case highlights the susceptibility of patients with cGVHD to the development of OSCC even two decades after HSCT. Therefore, we recommend careful long-term follow-up of the oral cavity for patients with cGVHD.
(キーワード): Allogenic bone marrow transplantation / chronic graft-versus-host disease / 口腔 (oral cavity) / squamous cell carcinoma
(出版サイトへのリンク): ● Publication site (DOI): 10.1111/adj.12343
(文献検索サイトへのリンク): ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 26211810; ● Summary page in Scopus @ Elsevier: 2-s2.0-84940719648

(DOI: 10.1111/adj.12343, PubMed: 26211810, Elsevier: Scopus) 津島文彦, 桜井仁亨, 松本佳奈子, 上杉篤史, 佐藤昌, 尾田誠一郎, 原田浩之 :
腸管ベーチェット病が疑われた再発性アフタ性潰瘍の1例,
日本口腔内科学会雑誌, 21, 2, 43-48, 2015年.

(要約): 腸管ベーチェット病が疑われた再発性アフタ性潰瘍の1例を経験したので報告する．患者は40歳女性．口腔内の難治性アフタ性潰瘍を主訴に当科を受診した．眼症状，皮膚症状および外陰部潰瘍は認めず，再発性アフタ性潰瘍の診断にて副腎皮質ステロイド軟膏にて経過観察を行った．しかし，初診から4年後に血便を認め，下部消化管内視鏡検査を施行したところ，盲腸に複数の潰瘍を認め，腸管ベーチェット病が疑われた．
(キーワード): 腸管ベーチェット病 / 再発性アフタ性潰瘍
(出版サイトへのリンク): ● Publication site (DOI): 10.6014/jjsom.21.43
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390282680399606016; ● Search Scopus @ Elsevier (DOI): 10.6014/jjsom.21.43

(DOI: 10.6014/jjsom.21.43, CiNii: 1390282680399606016) 工藤雅範, 原田浩之, 津島文彦, 松本佳奈子, 小村健, 石井良昌 :
上顎洞を広範に占拠した内反乳頭腫の1例,
日本口腔外科学会雑誌, 60, 1, 29-33, 2014年.

(要約): Inverted papilloma of the nasal cavity and paranasal sinuses is a relatively uncommon benign tumor. Because of the aggressive nature and risk of recurrence of the tumor, complete resection is essential. We report a patient with a massive inverted papilloma of the maxillary sinus who was surgically treated by a collaborative medical team approach, including otorhinolaryngology specialists and oral surgeons. The patient was a 50-year-old woman who consulted an otorhinolaryngologist at a primary care center in early June 2010 because of left nasal obstruction. A left nasal polyp was resected. The histopathological diagnosis was an inverted papilloma. In early July 2010, she was referred to the Division of Otolaryngology at Ebina General Hospital. Computed tomography revealed a mass of different density in the left maxillary sinus and nasal cavity. The clinical diagnosis was a suspected massive inverted papilloma of the left maxillary sinus. In mid-July 2010, otorhinolaryngology specialists were consulted and resection of the tumor was considered difficult by endoscopic sinus surgery (ESS) alone. In September 2010, the patient underwent tumor resection combined with the Caldwell-Luc operation under general anesthesia in collaboration with our department. The histopathological diagnosis was an inverted papilloma. No recurrence has occurred as of 36 months after the operation.
(キーワード): 内反乳頭腫 / 上顎洞 / チーム医療
(出版サイトへのリンク): ● Publication site (DOI): 10.5794/jjoms.60.29
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1390001206531337856; ● Search Scopus @ Elsevier (DOI): 10.5794/jjoms.60.29

(DOI: 10.5794/jjoms.60.29, CiNii: 1390001206531337856) Fumihiko Tsushima, Toshihiro Sawai, Kayamori Kou, Norihiko Okada and Ken Omura :
Schwannoma in the floor of the mouth: A case report and clinicopathological studies of 10 cases in the oral region,
Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology, 24, 3, 175-179, Jan. 2012.

(キーワード): Clinicopathological features / Floor of the mouth / Schwannoma
(出版サイトへのリンク): ● Publication site (DOI): 10.1016/j.ajoms.2011.12.003
(文献検索サイトへのリンク): ● Summary page in Scopus @ Elsevier: 2-s2.0-84870714260

(DOI: 10.1016/j.ajoms.2011.12.003, Elsevier: Scopus) 津島文彦, 伊原英世, 土屋新太郎, 高橋由貴子, 石井良昌 :
下唇にみられた多形腺腫の1例,
Hosp. Dent. (Tokyo), 21, 1, 59-62, 東京, 2009年. 津島文彦, 佐藤佑輔, 石井良昌 :
動脈瘤による慢性DIC状態に起因した抜歯後出血より発見された骨髄異形成症候群の1例,
有病者歯医療, 18, 3, 167-173, 2009年. 津島文彦, 伊原英世, 佐藤佑輔, 高橋由貴子, 土屋新太郎, 石井良昌 :
経口ビスフォスフォネート製剤に誘発されたと考えられた顎骨壊死の3例,
Hosp. Dent. (Tokyo), 20, 2, 141-147, 東京, 2008年. 坂本一郎, 依田哲也, 成田紀之, 今井英樹, 石川基, 津島文彦, 櫻井仁亨, 塚原宏泰, 宮村壽一, 依田泰, 小村健 :
片側性咀嚼筋の重度形成不全を伴った顔面非対称の1例,
日本顎関節学会雑誌, 16, 3, 191-195, 2004年12月.

(キーワード): 顔面非対称 / 咀嚼筋 / 形成不全
(文献検索サイトへのリンク): ● CiNii @ 国立情報学研究所 (CRID): 1573950399656299008

(CiNii: 1573950399656299008)

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氏名（漢字）: 津島文彦
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氏名（英字）: Tsushima Fumihiko
所属機関: 東京医科歯科大学

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researchmap最終確認日: 2026/8/9 01:38
氏名（漢字）: 津島文彦
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氏名（英字）: Tsushima Fumihiko
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研究者番号: 90456210

所属（現在）: 2026/4/1 : 徳島大学, 大学院医歯薬学研究部(歯学域), 教授

所属（過去の研究課題 情報に基づく）*注記: 2026/4/1 : 徳島大学, 大学院医歯薬学研究部(歯学域), 教授
2024/4/1 : 東京科学大学, 東京科学大学病院, 講師
2022/4/1 – 2023/4/1 : 東京医科歯科大学, 東京医科歯科大学病院, 講師
2021/4/1 : 東京医科歯科大学, 歯学部附属病院, 講師
2017/4/1 : 東京医科歯科大学, 歯学部附属病院, 講師
2015/4/1 – 2016/4/1 : 東京医科歯科大学, 大学院医歯学総合研究科, 助教
2013/4/1 – 2015/4/1 : 東京医科歯科大学, 医歯(薬)学総合研究科, 助教
2010/4/1 : 東京医科歯科大学, 歯学部附属病院, 医員
2009/4/1 : 東京医科歯科大学, 医歯学総合研究科, 非常勤講師
2008/4/1 : 東京医科歯科大学, 大学院・医歯学総合研究科, 非常勤講師

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生物系 / 医歯薬学 / 歯学 / 外科系歯学
生物系 / 医歯薬学 / 歯学 / 外科系歯学 / 生物系 / 医歯薬学 / 歯学 / 形態系基礎歯科学
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生物系 / 医歯薬学 / 歯学 / 病態科学系歯学・歯科放射線学
小区分57060:外科系歯学関連

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口腔外科一般 / 口腔粘膜疾患 / 口腔癌 / 免疫抑制分子 / 上皮角化細胞 / 免疫療法 / 口腔扁平苔癬 / PD-1陽性T細胞 / 基底細胞 / PD-L1 / 紅色型 / 白色型 / 金属アレルギー / 口腔白板症 / 癌化 / 臨床的因子 / 臨床的検討 / 浸潤ＣＤ８Ｔ細胞 / ＴＣＲレパトア

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歯学 / 免疫学 / 慢性炎症 / 口腔粘膜 / IL-33 / 免疫抑制分子 / VISTA / 皮膚 / 免疫制御 / 口腔癌 / がん免疫 / がん微小環境 / 免疫プロファイル / 免疫チェックポイント阻害薬 / 免疫 / 口腔扁平苔癬

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