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Graft Versus Host Disease

DC stimulation of donor CD8+ T cells may be useful for prevention of GVHD

Published in Blood Weekly, August 5th, 2004

Dendritic cell stimulation of donor CD8+ T cells may be useful for prevention of graft versus host disease.

"Graft versus host disease (GVHD) is triggered by host antigen-presenting cells (APCs) that activate donor T cells to proliferate and differentiate, but which APC-activated donor T-cell subsets mediate GVHD versus beneficial antitumor effects is not known.

"Using a CD8+ T cell-dependent mouse model of human GVHD, we found that host dendritic cell (DC)-induced CD44hiCD8+ effector/ memory T cells were functionally defective in inducing GVHD, whereas CD44loCD8+ naive phenotype T cells were extremely potent GVHD inducers,"...

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