IL10 and myeloid sarcoma: Among the various inflammatory factors, some proinflammatory cytokines, such as nterleukin-2 (IL-2), tumor necrosis factor- α (TNF-α) or interferon-g (IFN-g) which are secreted by T helper 1 (Th1) cells, and some anti-inflammatory cytokines such as Transforming growth factor beta 1 (TGF-β1) and interleukin 10 (IL-10) play an important role in the MS pathogenesis (Mirshafiey and Mohsenzadegan, 2009).