SVF
Level D· Scientific groundwork from lab and animal studiesAnimal StudyPubMed

Photobiomodulation and extracellular vesicles-loaded alginate from adipose mesenchymal stem cells for cartilage repair in a rat model of osteoarthritis.

Hang NLT., Wong CC., Chen YT., Tseng YW., Cheng-Jen-Chang, Yen Y.

Animal Study on Knee Osteoarthritis, Osteoarthritis, Cartilage Damage, published in Int J Biol Macromol (2026) — 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
Animal Study
Journal
Int J Biol Macromol (2026)
Country
Netherlands
Reported sample size
—
Source database
PubMed
PMID
42288269
DOI
10.1016/j.ijbiomac.2026.152996

Abstract (original English)

Osteoarthritis (OA) presents complex pain mechanisms and progressive cartilage degradation, presenting ongoing challenges in clinical management. Extracellular vesicles derived from adipose-derived stem cells (ADSC-EVs) have garnered attention as cell-free therapeutic agents with potential application in regenerative medicine. To improve local retention, ADSC-EVs were delivered using a viscosity-enhanced alginate matrix (ADSC-EVs/Alg) as an injectable carrier. Photobiomodulation (PBM), a noninvasive and drug-free therapeutic approach known to modulate inflammation and promote tissue regeneration, was investigated alone and in combination with ADSC-EV delivery via cell proliferation in vitro and cartilage repair of KOA in rats in this study. In vitro, PBM significantly promoted cell proliferation, while the optimized ADSC-EVs/Alg matrix (10% alginate, 1: 9 Alg:EV ratio) served as a stable delivery vehicle without further enhancing PBM-induced proliferation. In a rat model of knee OA, the treatments of ADSC-EVs/Alg, PBM, and their simultaneous administration all demonstrated comparable cartilage preservation. Collectively, these findings indicate that both PBM and ADSC-EVs/Alg promote cartilage repair; however, their combined therapy offers no marked additional benefit under the evaluated conditions.

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
AnimalsAlginatesMesenchymal Stem CellsRatsOsteoarthritisExtracellular VesiclesAdipose TissueDisease Models, AnimalCell ProliferationLow-Level Light Therapy
KneeKnee OsteoarthritisOsteoarthritisCartilage Damage
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