Mechanisms of immune modulation regulated by factors from OSCC cells on the development of acquiring metastatic potential to regional lymph nodes
Project/Area Number |
17K11891
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Surgical dentistry
|
Research Institution | Asahi University |
Principal Investigator |
Kondoh Nobuo 朝日大学, 歯学部, 教授 (40202072)
|
Co-Investigator(Kenkyū-buntansha) |
山崎 裕 北海道大学, 歯学研究院, 教授 (90250464)
藤内 祝 横浜市立大学, 医学研究科, 客員教授 (50172127)
光藤 健司 横浜市立大学, 医学研究科, 教授 (70303641)
住友 伸一郎 朝日大学, 歯学部, 教授 (50216496)
高山 英次 朝日大学, 歯学部, 准教授 (70533446)
神谷 真子 朝日大学, 経営学部, 准教授 (80181907)
川木 晴美 朝日大学, 歯学部, 准教授 (70513670)
梅村 直己 朝日大学, 歯学部, 講師 (80609107)
|
Project Period (FY) |
2017-04-01 – 2020-03-31
|
Project Status |
Completed (Fiscal Year 2019)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
Keywords | 口腔扁平上皮癌 / 腫瘍微小環境 / 腫瘍関連線維芽細胞 / 腫瘍免疫 / 間葉系間質細胞 / 骨髄由来免疫細胞 / 腫瘍免疫学 / IL-1α / OSCC / IFN-γ / 脾細胞 / 牛胎児血清(FBS) / H2 / マウス / CAF / PMN-MDSC / M-MDSC / IFN-gamma |
Outline of Final Research Achievements |
Mouse OSCC cell line (Sq1979-1) and the subclone, L5 cells, established from metastasized lymph nodes suppressed the immunity of splenocytes of transplanted mice. Among these, Sq1979 cells promoted immunosuppressive activity of mesenchymal stromal cells (10T1 / 2) against stimulated splenocytes. This activity was mediated by IL-1α released by Sq1979 cells. IL-1α induced a class II tissue-suitable expression (H-2) gene group expressed by 10T1 / 2 cells. IL-1α expression in Sq1979 was remarkably enhanced in low serum and hypoxic conditions, resulted in enhancing the immunosuppressive effect of mesenchymal stromal cells. Our results demonstrate that, during the process of developing malignancy, OSCC exerts various immunosuppressive mechanisms in the tumor tissue microenvironments.
|
Academic Significance and Societal Importance of the Research Achievements |
マウス口腔扁平上皮癌(OSCC)は、リンパ節転移能を獲得する悪性化に伴いMDSCを介する免疫抑制へと制御機能を変化させることを既に我々は示した。本研究では、発生初期のOSCCはMDSCを誘導せず、腫瘍微小環境において間葉系間質細胞を介した免疫抑制系を構築し、OSCCの放出するIL-1αがその機能を促進することを突き止めた。IL-1αがOSCC の新規免疫療法の標的分子となる可能性が示された。
|
Report
(4 results)
Research Products
(40 results)
-
-
-
-
-
[Journal Article] Suppression effect of adipose tissue-derived mesenchymal stem cells isolated from β2-microglobulin-deficient mice.2018
Author(s)
Masuda J, Takayama E, Ichinohe T, Strober W, Mizuno-Kamiya M, Ikawa T, Kitani A, Kawaki H, Fuss IJ, Kawamoto H, Seno A, Vaidyanath A, UmemuraN, Mizutani A, Kasai T, Honjo Y, Satoh A, Murakami H, Katsura Y, Kondoh N, Seno M
-
Journal Title
Exp Ther Med
Volume: 16
Pages: 4277-4282
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
[Presentation] ゼオライトを用いたイオン交換によるS-PRGフィラー抽出液の評価2019
Author(s)
新谷耕平, 川木晴美, 上野恭平, 石榑大嗣, 堀口敬司, 西川元典, 奥山克史, 近藤信夫, 二階堂 徹, 玉置幸道, 堀田正人
Organizer
第75回日本歯科理工学会秋季学術講演会(長崎)
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-