Restoration of immune susceptibility to cancer cells regulated by autophagy and hypoxic responses
Project/Area Number |
25430150
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Tumor therapeutics
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Research Institution | Shimane University |
Principal Investigator |
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Keywords | 低酸素 / 癌 / 免疫 / 治療抵抗性 / オートファジー / アポトーシス |
Outline of Final Research Achievements |
In the human pancreatic cancer cells which showed resistance to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), as an anticancer drug, I investigated to restore the sensitivity to TRAIL and elucidate its cellular mechanisms. Pifithrin-mu, an inhibitor of autophagy or ABT-263, a Bcl-2 family inhibitor which targets Bcl-2, Bcl-xL, and Bcl-w significantly enhanced the sensitivity to TRAIL in human pancreatic cancer cells. Knockdown of HIF-2alpha, but not HIF-1alpha, using siRNA increased the susceptibility of pancreatic cancer cells to TRAIL via decreased the expression of anti-apoptotic protein survivin, and induced antitumor effects. These results suggest that inhibition of HIF-2alpha, autophagy, or anti-apoptotic molecules can enhance the efficacy of immune therapies to cancers.
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Report
(4 results)
Research Products
(38 results)
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[Journal Article] Detection of an immunogenic HERV-E envelope with selective expression in clear cell kidney cancer2016
Author(s)
Cherkasova E., Scrivani C., Doh S., Weisman Q., Takahashi Y., Harashima N., Yokoyama H., Srinivasan R., Linehan WM., Lerman MI., and Childs RW.
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Journal Title
Cancer Research
Volume: 76 (8)
Issue: 8
Pages: 2177-2185
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Bcl-2 family inhibitors effectively sensitize human pancreatic cancer cells to TRAIL2014
Author(s)
Hari Y, Harashima N, Kidani A, Hayashi H, Kawabata Y, Harada M, Yano S, Tajima Y
Organizer
45th Anniversary Meeting of APA (American pancreatic association) /JPS(日本膵臓学会)
Place of Presentation
Hapuna Beach Prince Hotel, Big Island, Hawaii, U.S.A.
Year and Date
2014-11-05 – 2014-11-08
Related Report
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