Alloreactivity Across HLA Barriers Is Mediated by Both Naïve and Antigen-Experienced T Cells

Abstract excerpt

T cell responses to allogeneic targets arise predominantly from the naïve pool. However, in humans, the risk of graft-versus-host disease is increased if the donor has circulating T cells recognizing multiple persistent DNA viruses, suggesting that memory T cells also contribute to the alloresponse. To examine HLA alloreactivity, we used flow cytometry-based proliferation and cytokine production assays. We...

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