Fangyuan Gong, Yan Shen, Qi Zhang, Yang Sun, Jiayu Tang, Feifei Tao, Qiang Xu
Abstract:Allograft rejection is a predominantly Th1 immune response. In this study, we showed that obaculactone, a natural compound derived from citrus fruit, prolonged skin graft survival in mice when treated after but not before transplantation. Furthermore, obaculactone inhibited alloantigen-specific production of Th1 cytokine IFN-gamma as well as proinflammatory cytokine IL-2, TNFalpha and IL-6. In parallel, IL-10 production was markedly up-regulated. Obaculactone significantly enhanced the percentage of CD4(+)CD25…
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