{"title":"盐酸青藤碱通过抑制PI3K/AKT/mTOR通路激活足细胞自噬保护糖尿病肾病","authors":"Lihan Xie, Weinan Li, Shiqi Fan, Jinsong Jin","doi":"10.1002/jbt.70455","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Diabetic kidney disease (DKD) is a common complication of diabetes, often characterized by podocyte injury, proteinuria, and eventual renal failure. Sinomenine hydrochloride (SH), an active component derived from traditional Chinese medicine, is clinically effective in treating kidney diseases. This study investigates the protective effects of SH on podocytes under high-glucose conditions and its mechanism of action. Mouse podocytes (MPC-5) were treated with SH at concentrations of 50, 200, and 600 μg/mL under high-glucose conditions (30 mmol/L) for 24 h to establish a DKD model. Cell viability was assessed using CCK-8 assays, and apoptosis rates were measured using flow cytometry. Autophagy levels were evaluated by detecting LC3-II, Beclin-1, and P62 proteins via Western blot analysis, while the involvement of the PI3K/AKT/mTOR pathway was analyzed by examining phosphorylated AKT and mTOR. Transmission electron microscopy was employed to observe autophagosomes. SH improved podocyte viability, reduced apoptosis, and enhanced autophagic activity by increasing LC3-II and Beclin-1 expression while decreasing P62 levels. SH also downregulated p-AKT and p-mTOR, indicating inhibition of the PI3K/AKT/mTOR pathway. Electron microscopy confirmed increased autophagosomes in SH-treated groups. SH protects podocytes in a high-glucose environment by enhancing autophagy through inhibition of the PI3K/AKT/mTOR pathway. These findings provide insights into SH as a potential therapeutic agent for DKD management.</p>\n </div>","PeriodicalId":15151,"journal":{"name":"Journal of Biochemical and Molecular Toxicology","volume":"39 9","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sinomenine Hydrochloride Activates Podocyte Autophagy by Attenuating PI3K/AKT/mTOR Pathways to Protect Diabetic Nephropathy\",\"authors\":\"Lihan Xie, Weinan Li, Shiqi Fan, Jinsong Jin\",\"doi\":\"10.1002/jbt.70455\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Diabetic kidney disease (DKD) is a common complication of diabetes, often characterized by podocyte injury, proteinuria, and eventual renal failure. Sinomenine hydrochloride (SH), an active component derived from traditional Chinese medicine, is clinically effective in treating kidney diseases. This study investigates the protective effects of SH on podocytes under high-glucose conditions and its mechanism of action. Mouse podocytes (MPC-5) were treated with SH at concentrations of 50, 200, and 600 μg/mL under high-glucose conditions (30 mmol/L) for 24 h to establish a DKD model. Cell viability was assessed using CCK-8 assays, and apoptosis rates were measured using flow cytometry. Autophagy levels were evaluated by detecting LC3-II, Beclin-1, and P62 proteins via Western blot analysis, while the involvement of the PI3K/AKT/mTOR pathway was analyzed by examining phosphorylated AKT and mTOR. Transmission electron microscopy was employed to observe autophagosomes. SH improved podocyte viability, reduced apoptosis, and enhanced autophagic activity by increasing LC3-II and Beclin-1 expression while decreasing P62 levels. SH also downregulated p-AKT and p-mTOR, indicating inhibition of the PI3K/AKT/mTOR pathway. Electron microscopy confirmed increased autophagosomes in SH-treated groups. SH protects podocytes in a high-glucose environment by enhancing autophagy through inhibition of the PI3K/AKT/mTOR pathway. These findings provide insights into SH as a potential therapeutic agent for DKD management.</p>\\n </div>\",\"PeriodicalId\":15151,\"journal\":{\"name\":\"Journal of Biochemical and Molecular Toxicology\",\"volume\":\"39 9\",\"pages\":\"\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-08-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Biochemical and Molecular Toxicology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/jbt.70455\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Biochemical and Molecular Toxicology","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jbt.70455","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
Sinomenine Hydrochloride Activates Podocyte Autophagy by Attenuating PI3K/AKT/mTOR Pathways to Protect Diabetic Nephropathy
Diabetic kidney disease (DKD) is a common complication of diabetes, often characterized by podocyte injury, proteinuria, and eventual renal failure. Sinomenine hydrochloride (SH), an active component derived from traditional Chinese medicine, is clinically effective in treating kidney diseases. This study investigates the protective effects of SH on podocytes under high-glucose conditions and its mechanism of action. Mouse podocytes (MPC-5) were treated with SH at concentrations of 50, 200, and 600 μg/mL under high-glucose conditions (30 mmol/L) for 24 h to establish a DKD model. Cell viability was assessed using CCK-8 assays, and apoptosis rates were measured using flow cytometry. Autophagy levels were evaluated by detecting LC3-II, Beclin-1, and P62 proteins via Western blot analysis, while the involvement of the PI3K/AKT/mTOR pathway was analyzed by examining phosphorylated AKT and mTOR. Transmission electron microscopy was employed to observe autophagosomes. SH improved podocyte viability, reduced apoptosis, and enhanced autophagic activity by increasing LC3-II and Beclin-1 expression while decreasing P62 levels. SH also downregulated p-AKT and p-mTOR, indicating inhibition of the PI3K/AKT/mTOR pathway. Electron microscopy confirmed increased autophagosomes in SH-treated groups. SH protects podocytes in a high-glucose environment by enhancing autophagy through inhibition of the PI3K/AKT/mTOR pathway. These findings provide insights into SH as a potential therapeutic agent for DKD management.
期刊介绍:
The Journal of Biochemical and Molecular Toxicology is an international journal that contains original research papers, rapid communications, mini-reviews, and book reviews, all focusing on the molecular mechanisms of action and detoxication of exogenous and endogenous chemicals and toxic agents. The scope includes effects on the organism at all stages of development, on organ systems, tissues, and cells as well as on enzymes, receptors, hormones, and genes. The biochemical and molecular aspects of uptake, transport, storage, excretion, lactivation and detoxication of drugs, agricultural, industrial and environmental chemicals, natural products and food additives are all subjects suitable for publication. Of particular interest are aspects of molecular biology related to biochemical toxicology. These include studies of the expression of genes related to detoxication and activation enzymes, toxicants with modes of action involving effects on nucleic acids, gene expression and protein synthesis, and the toxicity of products derived from biotechnology.