文摘
Standing at the interface of innate and adaptive immune, 纬未 T cells play important pathophysiologic roles in infection, autoimmunity, and tumorigenesis. Recent studies indicate that 纬未 T cells could be categorized into IFN-纬+ and IL-17+ subsets, both of which possess select TCR usages, bear unique surface markers and require different cytokine signaling to maintain the homeostasis. In addition, as the major innate IL-17 producers, 纬未 T cells are increasingly appreciated for their involvement in various acute infections and injuries. This review will summarize the characteristics of IFN-纬+ (纬未 T-IFN-纬) and IL-17+ 纬未 T cells (纬未T17) and discuss their distinct pathogenic functions in different disease models.