2017 Fiscal Year Final Research Report
Immunological analysis of pathogenesis and immune response in titanium allergy
| Project/Area Number |
15K11329
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Surgical dentistry
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| Research Institution | Tsurumi University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
熊谷 賢一 鶴見大学, 歯学部, 助教 (10518129)
鈴木 隆二 独立行政法人国立病院機構(相模原病院臨床研究センター), 診断・治療研究室, 室長 (70373470)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | チタンアレルギー / TCR / T細胞受容体 / NK T細胞 / MAIT細胞 |
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| Outline of Final Research Achievements |
Titanium alloy has long been regarded as a biocompatible material, and is widely used for implants in medicine and dentistry. Titanium is thought to be a potential cause of metal allergy, however, accumulating T cells during development of titanium allergy have been poorly characterized because basic research based on a suitable animal model has not been performed. This study aimed to investigate the skewing of the T-cell receptor repertoire and cytokine profiles of accumulated T cells in inflamed skin during titanium allergy.Characterization of the TCR repertoire revealed the presence of the TRAV10/TRAJ18 clonotype, indicative of natural killer T cells, and TRAV1/TRAJ33, associated with mucosal-associated invariant T (MAIT) cells in the inflamed skin of both the irritant and allergic mice models. Thus our murine model of titanium-induced hypersensitivity shows that NKT cells and MAIT cells participate in titanium allergy.
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| Free Research Field |
口腔外科
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