2. Academic Validation
  3. Yishen Tongluo formula alleviates diabetic kidney disease through regulating Sirt6/TGF-β1/Smad2/3 pathway and promoting degradation of TGF-β1

Yishen Tongluo formula alleviates diabetic kidney disease through regulating Sirt6/TGF-β1/Smad2/3 pathway and promoting degradation of TGF-β1

  • J Ethnopharmacol. 2023 Feb 13;307:116243. doi: 10.1016/j.jep.2023.116243.
Xiaowei Zhang 1,  Liang Zhao 1,  Shixie Xiang 1,  Yiran Sun 1,  Pan Wang 1,  Jenny Jie Chen 2,  Brian Sheng-Xian Teo 2,  Zhishen Xie 3,  Zhenqiang Zhang 4,  Jiangyan Xu 5
Affiliations

Affiliations

  • 1 Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China; Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China.
  • 2 International Academic Affairs Department, Management and Science University. University Drive, Off Persiaran Olahraga, Section 13, 40100, Shah Alam, Selangor Darul Ehsan, Malaysia.
  • 3 Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China; Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China. Electronic address: xiezhishen@hactcm.edu.cn.
  • 4 Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China; Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China. Electronic address: zhang_zhenqiang@126.com.
  • 5 Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China; Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, PR China. Electronic address: xujiangyan2008@163.com.
PMID: 36791927 DOI: 10.1016/j.jep.2023.116243
Abstract

Ethnopharmacological relevance: Yishen Tongluo formula (YSTLF) is formulated based on traditional Chinese medicine theory for the treatment of Diabetic kidney disease (DKD) and has been shown to be effective in improving the symptoms of DKD according to the clinical observation.

Aim of the study: To explore the effect of YSTLF on DKD and figure out whether its effects were due to the regulation SIRT6/TGF-β1/SMAD2/3 pathway and promoting degradation of TGF-β1.

Materials and methods: The extract of YSTLF at 1, 2.5 and 5 g/kg was orally administered to C57BLKS/J (db/db) mice for 8 weeks and db/db mice were given valsartan as a positive control. The littermate db/m and db/db mice were given vehicle as the control and model group, respectively. Blood urea nitrogen and serum creatinine were detected and the urinary albumin excretion, urea albumin creatinine ratio was calculated. The histopathological change of renal tissues in each group was determined. Simultaneously, the levels of fibrosis-related proteins and messenger RNA (mRNA) in kidney and high glucose (HG)-induced SV40-MES-13 cells were detected. The roles of YSTLF in regulating of SIRT6/TGF-β1/SMAD2/3 signaling pathway were investigated in HG-stimulated SV40-MES-13 cells and validated in db/db mice. Furthermore, the effect of YSTLF on TGF-β1 degradation was investigated in HG-stimulated SV40-MES-13 cells.

Results: YSTLF significantly improved the renal function in DKD mice. YSTLF dose-dependently attenuated pathological changes and suppressed the expression of type I collagen, alpha smooth muscle actin, type IV collagen, and fibronectin in vitro and in vivo, resulting in ameliorating of renal fibrosis. YSTLF positively regulated SIRT6 expression, while inhibited the activating of TGF-β1/SMAD2/3 signaling pathway. TGF-β1 was steady expressed in HG-stimulated SV40-MES-13 cells, whereas was continuously degraded under YSTLF treatment.

Conclusions: YSTLF significantly ameliorates renal damages and fibrosis may via regulating SIRT6/TGF-β1/SMAD2/3 signaling pathway as well as promoting the degradation of TGF-β1.

Keywords

Diabetic kidney disease; Renal fibrosis; Sirt6; TGF-β1; Yishen Tongluo formula.

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