ArticleZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences2024
Regulatory role of the mTOR signaling pathway in autophagy and mesangial proliferation in IgA nephropathy.
Article in Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- More than Glucose Elimination: Additional Benefits of SGLT2 Inhibitors in Glomerular Diseases.Drugs · 2026Review
- Review
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Authors and funding
10 authors.
Funding
Abstract
objectivesIgA nephropathy (IgAN) is the most common primary glomerular disease in China, but its pathogenesis remains unclear. This study aims to explore the regulatory role of the mammalian target of rapamycin (mTOR) signaling pathway in autophagy and mesangial proliferation during renal injury in IgA.
methodsThe activity of mTOR and autophagy was evaluated in kidney samples from IgAN patients and in an IgAN mouse model induced by oral bovine serum albumin and carbon tetrachloride (CCl4) injection. mTOR inhibitors (rapamycin) and activators [bpV(phen)] were administered to the IgAN mouse model to observe the effects of mTOR on autophagy and renal lesions. In human mesangial cells treated with polymeric IgA1 (p-IgA1) and mTOR modulators, the expression and distribution of cell cycle proteins were assessed, along with the effects of mTOR on mesangial cell proliferation and autophagy.
resultsIncreased mTOR activity and decreased autophagy were observed in kidney tissues from IgAN patients and the mouse model, as evidenced by elevated phosphorylated mTOR (p-mTOR) levels and reduced LC3 expression. In the IgAN mouse model, rapamycin inhibited mTOR, restored autophagy, reduced mesangial IgA deposition, alleviated mesangial cell proliferation, and decreased proteinuria (all
conclusionsInhibition of the mTOR signaling pathway enhances renal autophagy, reduces mesangial cell proliferation, and improves renal injury in IgAN.
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