IL6 and breast cancer: Various cytokines, such as IL-1, IL-2, IL-6, IL-8, IL-10, IL-11, IL-12, IL-17A, IL-18, IL-19, IL-20, IL-23, IRF-1, IRF-2, IFN-γ, TGF-β, and gp130, have been implicated in BC pathogenesis [3,4,5].