Abstract
Con A-induced hepatitis is the most commonly used animal model for simulating autoimmune hepatitis (AIH). In this study, we investigated whether methyl butyrate (MB) alleviates Con A-induced hepatitis and how it affects Con A-stimulated lymphocytes. MB improves liver function in AIH mice, reducing the expression of several inflammatory cytokines and Th1 cell-associated chemokines in the liver, while significantly inhibiting toll-like receptor signaling pathway. Also in the liver, we verified that infiltrating Th1 cells were fewer after MB treatment. In vitro, we found that the activation of both human and mouse Th1 cells by Con A were inhibited by MB and the human-derived cells were even more sensitive. And MB caused a reduction in IFN-γ secretion together with TNF-α and IL-6. The above findings suggest that MB inhibits the activation and homing of Th1 cells to the liver, thereby attenuating Con A-induced liver injury, and may be a potential therapeutic agent for AIH.
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