After encountering antigen in the periphery and under the influence of the cytokine milieu present, CD4 + T cells can further differentiate into subtypes, including Th1, Th2 and Th17. T cells seem ...

Various immune pathways in the host, such as TH1, TH2, TH3, TH9, TH17, TH22, TH1-like, and THαβ, have been identified. While TH2 and TH9 responses primarily target multicellular parasites ...