Topical MSC-Derived Extracellular Vesicles Accelerate Healing of Second-Degree Burns: A Case Report.
Carl I Schulman, Nicholas Namias, Louis Pizano et al.
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Case in brief
A 48-year-old man with deep second-degree burns received a single topical dose of allogeneic bone marrow mesenchymal stem cell-derived extracellular vesicles within 48 hours of injury in an open-label phase 1/2a study. The treated wound achieved > 99% closure within 1 week, with healing maintained for over 1 year. Laser Doppler imaging showed improved perfusion within 1 week. Scar assessment over 52 weeks indicated early resolution of pain and pruritus and minimal residual scarring. No adverse events were reported.
What made this case unusual
The report describes topical extracellular vesicles as a treatment for deep second-degree burns, with rapid wound closure and improved perfusion observed in this single-patient study.
Diagnostic / clinical pearl
In this case, early laser Doppler imaging showed improved perfusion alongside rapid closure; the authors suggest this may indicate prevention of burn wound conversion.
Why it matters
The findings provide preliminary human experience with topical MSC-derived extracellular vesicles for burn healing, but a single case cannot establish efficacy.