Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Outline of Final Research Achievements |
In this study, to examine how malignant lymphoma cells can escape from the immune system, our established mouse lymphoma model was analyzed. We found that Fas expression is downregulated in lymphoma cells, and that restoration of Fas expression by CD40 signal activation in lymphoma cells induces apoptosis triggered by cytotoxic T cells expressing Fas ligand. Furthermore, certain human lymphoma cell lines that highly express a member of Survivin family Livin show resistance to Fas-mediated apoptosis. Given that high expression of Livin is associated with poor prognosis in Non-Hodgkin's lymphoma patients, targeting Livin is a new therapeutic strategy for malignant lymphoma to restore anti-tumor immune activity by Fas-mediated apoptosis.
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