Level D· Scientific groundwork from lab and animal studiesLaboratory StudyPubMedOpen access

Extracellular vesicles from adipose-derived mesenchymal stem cells promote colony formation ability and EMT of corneal limbal epithelial cells.

Li X., Hayashi R., Imaizumi T., Harrington J., Kudo Y., Takayanagi H.

Laboratory Study, published in PLoS One (2025) — summary generated from the PubMed abstract.

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Level D· Scientific groundwork from lab and animal studiesEvidence level of this study

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

  • Level A · Stronger Clinical Evidence
  • Level B · Emerging clinical evidence with positive signals
  • Level C · Early human research exploring benefits
  • Level D · Scientific groundwork from lab and animal studies
  • Emerging · Emerging topic under active research
Read the A–D evidence level guide

This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.

Study type
Laboratory Study
Journal
PLoS One (2025)
Country
United States
Reported sample size
—
Source database
PubMed
PMID
40257992
PMCID
PMC12011229
DOI
10.1371/journal.pone.0321579
Citations
3

Abstract (original English)

Corneal diseases are a leading cause of visual impairment, and their treatment remains challenging. Corneal epithelial stem cells exist in the limbus, the peripheral region of the cornea, and play an important role in corneal regeneration. Here, we evaluated the effects of extracellular vesicles from human adipose-derived mesenchymal stem cells (AdMSC-EVs) on limbal epithelial cells (LECs). Colony formation assays showed that the colony-forming efficiency of LECs significantly increased in the presence of AdMSC-EVs. We next demonstrated that AdMSC-EVs accelerated the migration of LECs in a scratch assay, whereas the proliferation of LECs was decreased by AdMSC-EVs in the cell proliferation assay. RNA sequencing analysis of LECs indicated that AdMSC-EVs maintained their stem cell properties and improved epithelial-mesenchymal transition (EMT). Furthermore, after identifying the six most abundant microRNAs (miRNAs) in AdMSC-EVs, LEC transfection with miRNA mimics indicated that miR-25, miR-191, and miR-335 were the most probable miRNA factors within AdMSC-EVs at improving colony formation ability and EMT. Taken together, our findings indicated that AdMSC-EVs enhanced the colony formation ability and EMT of LECs, and the effects of AdMSC-EVs were in-part mediated by the miRNAs within the AdMSC-EVs.

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is preclinical work; animal or laboratory results cannot be applied to humans.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

How we grade evidence
HumansMesenchymal Stem CellsExtracellular VesiclesEpithelial-Mesenchymal TransitionMicroRNAsCell ProliferationLimbus CorneaeEpithelial CellsEpithelium, CornealAdipose Tissue

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