CD4 and myeloid sarcoma: Among CD4+T cells, proinflammatory T helper 1 (Th1) secreting interferon-gamma (IFN-γ), interleukin (IL)-2, and tumor necrosis factor alpha/beta (TNF-α/β) and T helper 17 (Th17) secreting IL-17 were linked to relapses of MS [11,12].