Insufficient· Insufficient EvidenceNarrative Review

Advancing fat graft survival: from adipose-derived stem cell mechanisms to next-generation regenerative strategies.

Ma X., Xu L., Zhang J., Wu X., Tao T.

Narrative Review on Chronic Wound, Scar, Facial Rejuvenation, Immune Modulation, published in Front Cell Dev Biol (2026) — summary generated from the PubMed abstract.

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
Narrative Review
Journal
Front Cell Dev Biol (2026)
Country
Switzerland
Reported sample size
PMID
42388980
DOI
10.3389/fcell.2026.1870729

Abstract (original English)

Autologous fat grafting is widely used in reconstructive and aesthetic surgery because it is easy to harvest, well tolerated by the host, and produces natural-looking results. However, unpredictable graft resorption-with reported volume retention ranging from 30% to 80%-remains a major obstacle. To overcome this, two cell-based approaches have been developed: the stromal vascular fraction (SVF), a freshly isolated mixture containing approximately 1%-10% adipose-derived stem/stromal cells (ADSCs) plus other cell types, and culture-expanded ADSCs, a more homogeneous population obtained under Good Manufacturing Practice conditions. Meta-analyses show that while SVF increases fat retention by a modest margin, expanded ADSCs can achieve substantially greater improvements, highlighting important biological and regulatory differences between the two preparations. ADSCs support graft survival not only through classic growth factor secretion but also via immunomodulation, intercellular mitochondrial transfer, and exosomal microRNAs that co-ordinate angiogenesis, inflammation, and fibrosis. This review summarises current clinical evidence for ADSC- and SVF-enriched fat grafting in breast reconstruction, facial rejuvenation, scar management, chronic wounds, hair restoration, and paediatric as well as elderly populations. We also critically assess adjunctive strategies, including platelet-

What this study does not prove

  • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • This is a narrative review: it collects no new patient data and does not systematically appraise evidence quality.

Evidence level

There is currently not enough data to draw conclusions about benefit or risk for this topic.

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