IL2 and B-cell non-Hodgkin lymphoma: The sIL2Rα–IL-2 complex promoted T cell differentiation toward Treg cells rather than toward Th1 or Th17 (Fig. 4B and C), similar to findings reported by Yang et al. [43] that IL2Rα-IL-2 complex promoted T cell differentiation toward Treg cells in follicular B cell non-Hodgkin’s lymphomas.