Emodin Attenuates Renal Interstitial Fibrosis via Regulation of TIMP1/MM9 Pathway in Rats
Li, D.; Zhang, Q.; Lou, Y.; He, C.; Gu, R.; Wei, L.
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Emodin has a variety of pharmacological functions including anti-bacterial infection, anti-inflammatory, anti-oxidation, anti-tumor, regulation of gastrointestinal activities and anti-hepatic and lung fibrosis. However, the role of emodin in the regulation of renal interstitial fibrosis(RIF) remains poorly understood. In this study, we investigated the regulation of emodin in RIF and revealed the underlying molecular mechanisms. We established a unilateral ureter obstruction(UUO) model to simulate renal interstitial fibrosis in rats. We found that UUO rats were observed a large amount of inflammatory cell infiltration, more fibroblast proliferation, collagen fiber proliferation. Furthermore, we demonstrated that the up-regulation of TIMP1 and down-regulation of MMP9 were related to renal fibrosis. However, those phenomena in emodin-treated UUO rats were ameliorated. Collectively, our results provide new insights into the treatment of RIF and suggest that the TIMP1/MM9 signaling axis may be a potential therapeutic target for RIF.
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