Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Outline of Final Research Achievements |
This study focused on the pathogenesis of prolonged humoral immunodeficiency following allogeneic hematopoietic stem cell transplantation (allo-HSCT). In a mouse allo-HCST model, mice with a history of CD8+ T cell-mediated GVHD developed severe atrophy of the lymph nodes and failed to mount T-cell dependent humoral immune responses to subcutaneous or oral immunization. Lymph node fibroblastic reticular cells were impaired in the early phase of GVHD through Fas-FasL dependent cytotoxicity, and inhibition of FasL partially ameliorated lymph node impairment. Depletion of CD8+ T cells in the graft or inhibition of FasL signaling would be expected to prevent lymph node GVHD and humoral immunodeficiency.
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