CCL4 and sarcoidosis: In the same way, many cytokines (including IL-1 receptor antagonist, IL-6, IL-8, IFN-γ, and TNF-α) and chemokines (IP-10, MIP-1α, MIP-1β, and RANTES) have been reported to be present in higher concentrations in the vitreous humor of eyes with sarcoidosis than that in those with ERM21,22.