Citation

CD4(+) T cells play an important role in the initiation of an immune response by providing help to other cells. Among the helper T subsets, interferon- (IFN-)-secreting T helper 1 (Th1) and IL-17-secreting T helper 17 (Th17) cells are indispensable for clearance of intracellular as well as extracellular pathogens. However, Th1 and Th17 cells are also associated with pathogenesis and contribute to the progression of multiple inflammatory conditions and autoimmune diseases.