Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Research Abstract |
We analyzed a significance of CD8-positive T lymphocytes in graft and recipient peripheral blood in the immunoresponse after allogeneic hematopoietic stem cell transplantation. We observed the followings : (1) recovery of nalve CD8-positive T lymphocytes after cord blood transplantation is comparable to that after bone marrow transplantation, (2) CD8-positive T lymphocytes that survive beyond pre-transplant conditioning can cause graft rejection, and (3) under immunological pressure by CD8-positive T lymphocytes that recognize mismatched HLA molecule between donor and recipient, residual leukemia blast clones whose HLA expression is low can expand and result in relapse.
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