Salvianolic acid B attenuates membranous nephropathy by activating renal autophagy via microRNA-145-5p/phosphatidylinositol 3-kinase/AKT pathway
Junqi Chen, Qinghong Hu, Yi-Ni Luo, Lina Luo, Hua Lin, Dandan Chen, Yuan Xu, Bihao Liu, Yu He, Chun-Ling Liang, Yaoyu Liu, Jiuyao Zhou, Junbiao Wu
Abstract
and microRNA-145-5p was detected by quantitative real-time PCR. Phosphatidylinositol 3-kinase (PI3K), phosphorylated AKT, AKT, beclin1, and microtubule-associated protein light chain 3 (LC3) levels were detected by Western blot. HMCs proliferation and cycle were detected by Cell Counting Kit-8 and flow cytometry. LC3 were detected by LC3-dual-fluorescent adenovirus in HMCs. Our results showed that SalB significantly ameliorated kidney function and pathological changes. Furthermore, it significantly alleviated proliferation, inflammation and activated autophagy in mesangial cells. Moreover, microRNA-145-5p antagomir accentuated MN while microRNA-145-5p inhibitor and LY294002 encouraged proliferation and inflammation through PI3K/AKT pathway in HMCs. Collectively, our study demonstrated that SalB activated renal autophagy to reduce cell proliferation and inflammation of MN, which was mediated by microRNA-145-5p to inhibit PI3K/AKT pathway, and ultimately attenuated MN.