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Previous work reported that dietary supplementation with resveratrol lowers synovial hyperplasia, inflammatory and oxidative damage in an antigen‐induced arthritis (AIA) model. Here, it is investigated whether resveratrol can regulate the abnormal synovial proliferation by inducing autophagy and controlling the associated inflammatory response.

Animals treated with resveratrol 8 weeks before AIA induction show the highest significant signal for microtubule‐associated protein 1 light chain 3 by confocal microscopy. Besides, resveratrol significantly reduces p62 expression, but it does not increase the signal of beclin‐1. Also, active caspase‐3 expression, as well as poly(ADP‐ribose) polymerase, is upregulated in the AIA group, and is significantly reduced in resveratrol‐treated AIA group. Resveratrol also mitigates angiopoietin‐1 and vascular endothelial growth factor signals. Finally …