Mesenchymal Stem Cell-Derived Exosomes miR-143-3p Attenuates Diabetic Kidney Disease by Enhancing Podocyte Autophagy via Bcl-2/Beclin1 Pathway.

ABSTRACT: Objective: Diabetic kidney disease (DKD) is characterized by podocyte injury and impaired autophagy. Bone marrow mesenchymal stem cell-derived exosomes (BMSC-Exos) exhibit therapeutic potential for DKD, yet their mechanisms remain unclear. This study investigated whether BMSC-Exos restore podocyte autophagy via the miR-143-3p/Bcl-2/Beclin1 axis to delay DKD progression. Methods: A high-glucose (HG)-induced podocyte injury model was established using mouse podocytes (MPC5). Autophagy-related proteins (Beclin1, Bcl-2, LC3) and the injury marker desmin were analyzed by Western blot and immunofluorescence (IF). High-throughput sequencing identified BMSC-Exos-enriched miRNAs, with the miR-143-3p/Bcl-2 targeting relationship validated by dual-luciferase reporter assays. BMSCs trans

SUBMITTER: Song W 

PROVIDER: S-EPMC12838913 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature