{HEAD ~ IRS1} and IRS2 are part of the insulin or insulin like growth factor signaling pathways, but also mediate some signals through other growth factors and cytokines, including IFNγ, IL2, IL4, {TAIL ~ IL7}, IL9, IL13 or IL15, growth hormone, prolactin, or leptin 
{ HEAD ~ IRS1 } and IRS2 are part of the insulin or insulin like growth factor signaling pathways , but also mediate some signals through other growth factors and cytokines , including IFNγ , IL2 , IL4 , { TAIL ~ IL7 } , IL9 , IL13 or IL15 , growth hormone , prolactin , or leptin
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