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The effects of urotensin II and its receptor in rat renal interstitial fibrosis

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3 Author(s)
Dan Wang ; Basic Med. Coll., Beihua Univ., Jilin, China ; Xiangjun Li ; Cai Li

To observe the effects of urotensinII on renal fibrosis and its mechanism. The renal interstitial fibrosis model were induced by unilateral ureteral obstruction (UUO) in rats, and the rat renal interstitium fibroblasts (NRK-49F) were used for in vitro mechanism study. Results showed that expression of UII and UT was significantly upregulated at both mRNA and protein levels in the UUO group compared with controls; The pathological features with Masson's trichrome-staining included collagen girdle-shaped in the interstitial of kidney which be ligated; UII exerted the stimulative effect on NRK-49F cell proliferation and DNA synthesis when UIIat concentrations of 10-9 and 10-8mol/L, compared with the Sham group (P<;0.01); UII promoted the transdifferentiation of NRK-49F cells by stimulate the expression of the o-SMA and increased the accumulation of ECM. We concluded that The expression of UII and GPR14 in renal tubular interstitium of UUO rats was increased significantly, and UII may play a crucial role in the progression of kidney fibrosis.

Published in:

Human Health and Biomedical Engineering (HHBE), 2011 International Conference on

Date of Conference:

19-22 Aug. 2011

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