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Chinese Journal of Cell and Stem Cell(Electronic Edition) ›› 2026, Vol. 16 ›› Issue (02): 94-101. doi: 10.3877/cma.j.issn.2095-1221.2026.02.004

• Review • Previous Articles    

Stem cell-derived exosome-mediated renal protection: halting fibrosis progression

Rui Fang1,2, Shengqiang Yu3,()   

  1. 1The Second School of Clinical Medical of Binzhou Medical University, Yantai 264003, China
    2Department of Urology, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
    3Department of Organ Transplant, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
  • Received:2025-08-13 Online:2026-04-01 Published:2026-04-13
  • Contact: Shengqiang Yu

Abstract:

Renal fibrosis is a multifactorial-driven pathological process involving intrarenal inflammation, cellular proliferation, and excessive deposition of collagen and fibronectin. Without intervention, this process can progress to chronic kidney disease (CKD) and may ultimately lead to end-stage renal disease. Stem cell-derived exosomes represent an emerging therapeutic strategy for renal fibrosis. Functioning as nanoscale extracellular vesicles (EVs), exosomes carry bioactive molecules that can be taken up by local or distal cells. They serve as mediators of intercellular communication while also delivering therapeutic payloads (e.g., microRNAs, proteins). In animal models of kidney disease, stem cell-derived exosomes have been demonstrated to effectively attenuate inflammation, suppress fibroblast activation, and reduce collagen production in the renal interstitium, thereby delaying fibrosis progression. This review summarizes the mechanisms underlying the antifibrotic effects of exosomes derived from various stem cell sources used as therapeutic agents for renal fibrosis. It also outlines future translational research directions and strategies aimed at enhancing the therapeutic efficacy of stem cell-derived exosomes.

Key words: Exosomes, Renal fibrosis, Cell-free therapy, Chronic kidney disease, Stem cells

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