2020 Fiscal Year Final Research Report
Modulation of gingival epithelial barrier function by TRP channel proteins
Project/Area Number |
19K24139
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Multi-year Fund |
Review Section |
0907:Oral science and related fields
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Research Institution | Niigata University |
Principal Investigator |
Hara Miki 新潟大学, 医歯学総合研究科, 助教 (60848266)
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Project Period (FY) |
2019-08-30 – 2021-03-31
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Keywords | 上皮バリア / TRPチャネルタンパク / TRPV1 |
Outline of Final Research Achievements |
TRP channel protein is expressed in the gingival epithelium, but there are few reports on its physiological role in periodontal tissues. The purpose of this study was to clarify the regulation of barrier function of gingival epithelial cells via TRP channel protein. The stimulation of gingival epithelial cells with capsaicin, a TRPV1 agonist, induced the expression of barrier-related genes. However, in the epithelial permeability assay showed capsaicin had no clear tendency to enhance the barrier function. On the other hand, capsaicin significantly reduced the production of TNF-α-induced inflammatory cytokines. These results suggest that TRPV1 is involved in immunological regulation of barrier function.
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Free Research Field |
歯周病学
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Academic Significance and Societal Importance of the Research Achievements |
近年同定されたTransient receptor potential(TRP) タンパクファミリーは、温度・機械刺激・化学刺激などによって活性化されるカルシウムイオンチャネルで、様々な疾患との関連性が報告されている。上皮細胞に発現するTRPタンパクが皮膚や血管のバリア機能制御に関与することが知られているが、歯肉上皮のバリア機能におけるそれらの関与については報告がほとんどない。TRPチャネルタンパクの関与とその分子メカニズムを明らかにすることで、宿主のバリア機能強化という視点から、新しい歯周病予防・治療法の確立を目指すことは社会的意義が大きい。
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