1. Academic Validation
  2. Gut Bacteroides ovatus ameliorates renal fibrosis by promoting the production of HDCA through upregulation of Clostridium scindens

Gut Bacteroides ovatus ameliorates renal fibrosis by promoting the production of HDCA through upregulation of Clostridium scindens

  • Cell Rep. 2024 Oct 22;43(10):114830. doi: 10.1016/j.celrep.2024.114830.
Zi-Lin Si 1 Han-Yu Wang 2 Tao Wang 3 Yi-Zhi Cao 2 Qing-Zhen Li 2 Kang Liu 4 Zhou Huang 2 Hui-Ling Liu 5 Ya-Jie Tan 6 Yin-Yin Wang 6 Feng-Qing Huang 6 Gao-Xiang Ma 6 Raphael N Alolga 6 Miao Yan 7 Cheng Chen 7 Jun-Hui Li 8 Jing Li 9 Hong-Wei Liu 3 Zhi-Hao Zhang 10
Affiliations

Affiliations

  • 1 Key Laboratory of Tropical Biological Resources of the Ministry of Education and One Health Institute, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China; School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China.
  • 2 Key Laboratory of Tropical Biological Resources of the Ministry of Education and One Health Institute, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China; State Key Laboratory of Natural Medicines, Department of TCM Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
  • 3 State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 1 Beichenxi Road, Chaoyang District, Beijing 100101, P.R. China.
  • 4 Department of Nephrology, Jiangsu Province Hospital (The First Affiliated Hospital of Nanjing Medical University), Nanjing 210029, China.
  • 5 Key Laboratory of Tropical Biological Resources of the Ministry of Education and One Health Institute, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China.
  • 6 State Key Laboratory of Natural Medicines, Department of TCM Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
  • 7 Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
  • 8 Putuo People's Hospital, Tongji University, Shanghai 200060, China.
  • 9 School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China.
  • 10 Key Laboratory of Tropical Biological Resources of the Ministry of Education and One Health Institute, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China; State Key Laboratory of Natural Medicines, Department of TCM Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China. Electronic address: zzh-198518@163.com.
Abstract

Renal fibrosis, inflammation, and gut dysbiosis are all linked to chronic kidney disease (CKD). Here we show that Bacteroides ovatus protects against renal fibrosis. Mechanistically, B. ovatus enhances intestinal hyodeoxycholic acid (HDCA) levels by upregulating a strain of intestinal bacteria, Clostridium scindens, that has the capacity for direct HDCA production in mice. HDCA significantly promoted GLP-1 secretion by upregulating the expression of TGR5 and downregulating the expression of farnesoid X receptor (FXR) in the gut. Activation of renal GLP-1R attenuates renal fibrosis while delaying the subsequent development of CKD. In addition, HDCA can also protect against renal fibrosis by directly upregulating renal TGR5. The natural product neohesperidin (NHP) was found to exert its anti-renal fibrotic effects by promoting the growth of B. ovatus. Our findings provide mechanistic insights into the therapeutic potential of B. ovatus, C. scindens, and HDCA in treating CKD.

Keywords

CP: Metabolism; CP: Microbiology.

Figures
Products