The application of HDAC inhibitors, such as trichostatin A (TSA), leads to a wide-ranged acetylation of histones and thus reduces the expression level of those inflammatory cytokines, such as IL-2, interferon (IFN)-γ, and IL-6, as well as alleviate the symptoms of lupus-prone mice [76]. The gene discussed is IL6; the disease is systemic lupus erythematosus.