#lymphokine  a cytokine secreted by helper T cells in response to stimulation by antigens and that play a role in cell-mediated immunity
  supertype:  cytokine  any of various proteins secreted by cells of the immune system that serve to regulate the immune system
  subtype:  interleukin  any of several lymphokines that promote macrophages and killer T cells and B cells and other components of the immune system

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