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- W4381376720 abstract "Diabetic kidney disease (DKD) is a disorder of glycolipid metabolism caused by diabetes mellitus, which leads to hemodynamic and inflammatory processes. The aim of this study is to investigate the mechanism of adipocyte-derived angiopoietin-like protein 2 (ANGPTL2) in promoting the progression of DKD. Patients with DKD were included, and plasma ANGPTL2 was detected by ELISA. Type 2 diabetic mouse model induced by HFD and STZ, systemic Angptl2 knockout mouse model and adipose-specific AAV-Angptl2 were constructed. HKC cells stimulated with high glucose and PA in vitro. ELISA was used to measure the levels of IL-6, IL-1β, TNF-α and ANGPTL2 in plasma. RT-qPCR and Western blot were used to detect PirB, lipid metabolism indicators and inflammation, and the proteomics of kidney was performed. HE, oil red O staining and inflammatory factor staining were used to evaluate the degree of renal lipid metabolism and inflammation. The plasma level of ANGPTL2 in DKD patients is significantly higher than that in normal controls. Compared with the normal mice, the DKD mice had increased lipid accumulation and severe inflammation in kidney tissues, with increased PirB, Cybb and pro-inflammatory factors, and decreased CD36 and FATP2 in kidney. Similarly, overexpression of adipose-derived ANGPTL2 in mice caused the same abnormal lipid metabolism and increased inflammation levels, while Angptl2 ko mice significantly improved lipid deposition and inflammation levels and fatty acid transport. Knockdown of ANGPTL2 in HKC cells also inhibited the reduction of CD36 and FATP2, the increase of its receptor PirB, and the increase of Cybb /Nox2-mediated inflammatory cytokines induced by high glucose and high lipid in HKC cells. Adipose-derived ANGPTL2 may play an important role in lipid metabolism and Cybb/ NOX2-regulated inflammatory through its receptor in DKD, suggesting that ANGPTL2 may serve as a potential treatment for preventing the progression of DKD. Disclosure R. Yin: None. L. Yang: None. D. Zhao: None. Funding National Natural Science Foundation of China (82170454)" @default.
- W4381376720 created "2023-06-21" @default.
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- W4381376720 date "2023-06-20" @default.
- W4381376720 modified "2023-09-23" @default.
- W4381376720 title "8-LB: Adipocyte-Derived ANGPTL2 Regulates Abnormal Lipid Metabolism and Inflammation through PirB in Diabetic Kidney Disease" @default.
- W4381376720 doi "https://doi.org/10.2337/db23-8-lb" @default.
- W4381376720 hasPublicationYear "2023" @default.
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