IL10 and neoplasm: Researchers supposed that it is similar to the mechanisms present in cancers, including the reduced antigen-presenting capacity, the increased secretion of immunosuppressive cytokines (IL-10, TGF-β), the decreased expression of major histocompatibility complex (MHC) antigens on the surface of antigen-presenting cells (APCs), and the accumulation of cells with immunosuppressive potential, e.g., MDSCs, Tregs, tumour-associated macrophages (TAMs) [17,18,19].