Exosomes derived from mesenchymal stem cells ameliorate renal fibrosis via delivery of miR-186-5p

© 2021. Japan Human Cell Society..

Evidence has shown that mesenchymal stem cells' (MSCs) therapy has potential application in treating chronic kidney disease (CKD). In addition, MSCs-derived exosomes can improve the renal function and prevent the progression of CKD. However, the mechanisms by which MSCs-derived exosomes (MSCs-Exo) ameliorate renal fibrosis in CKD remain largely unclear. To mimic an in vitro model of renal fibrosis, rat kidney tubular epithelial cells (NRK52E) were stimulated with transforming growth factor (TGF)-β1. In addition, we established an in vivo model of unilateral ureteric obstruction (UUO)-induced renal fibrosis. Meanwhile, we exploited exosomes derived from MSCs for delivering miR-186-5p agomir into NRK52E cells or kidneys in vitro and in vivo. In this study, we found that level of miR-186-5p was significantly downregulated in TGF-β1-stimulated NRK52E cells and the obstructed kidneys of UUO mice. In addition, miR-186-5p can be transferred from MSCs to NRK52E cells via exosomes. MSCs-delivered miR-186-5p markedly reduced the accumulation of extracellular matrix (ECM) protein, and inhibited epithelial-to-mesenchymal transition (EMT) and apoptosis in TGF-β1-stimulated NRK52E cells. Moreover, exosomal miR-186-5p from MSCs attenuated kidney injury and fibrosis in a UUO mouse model via inhibition of the ECM protein accumulation and EMT process. Meanwhile, dual-luciferase assay showed that miR-186-5p downregulated Smad5 expression via direct binding with the 3'-UTR of Smad5. Collectively then, these findings indicated that exosomal miR-186-5p derived from MSCs could attenuate renal fibrosis in vitro and in vivo by downregulation of Smad5. These findings may help to understand the role of MSCs' exosomes in alleviating renal fibrosis in CKD.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:35

Enthalten in:

Human cell - 35(2022), 1 vom: 01. Jan., Seite 83-97

Sprache:

Englisch

Beteiligte Personen:

Yang, Yiqiong [VerfasserIn]
Wang, Jing [VerfasserIn]
Zhang, Yu [VerfasserIn]
Hu, Xiuxiu [VerfasserIn]
Li, Li [VerfasserIn]
Chen, Pingsheng [VerfasserIn]

Links:

Volltext

Themen:

Chronic kidney disease
Exosomes
Extracellular Matrix Proteins
Journal Article
MIRN186 microRNA, human
Mesenchymal stem cells
MicroRNAs
Renal fibrosis
Smad5 Protein
Smad5 protein, mouse

Anmerkungen:

Date Completed 04.02.2022

Date Revised 04.02.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s13577-021-00617-w

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM331269155