ArticleMaterials today. Bio2024
Engineering exosomes from fibroblast growth factor 1 pre-conditioned adipose-derived stem cells promote ischemic skin flaps survival by activating autophagy.
Article in Materials today. Bio, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Biomaterial-based extracellular vesicle delivery systems for wound healing: From fabrication to applications.Bioactive materials · 2026Review
- [Role and mechanism of infrared thermography in early identification of necrosis risk in random-pattern flaps of mice].Zhonghua shao shang yu chuang mian xiu fu za zhi · 2026Article
- A bioadhesive antioxidant dual-crosslinked hydrogel mitigates endothelial pyroptosis to enhance ischemic flap survival.Journal of nanobiotechnology · 2026Article
- Exosome therapy for flap and skin graft survival: A systematic review and meta-analysis of preclinical evidence.JPRAS open · 2026Review
- Review
- Melatonin-engineered MSCs-exosomes deliver USP4 to stabilise ARNTL and inhibit clock rhythmic ferroptosis for enhanced flap survival.Clinical and translational medicine · 2026Article
- Innovative research on predicting skin flaps necrosis through quantification of the USP4/TNFAIP2 regulated 'M1 macrophages-Tregs axis' via skin barrier monitoring technology.Burns & trauma · 2026Article
- Targeting Programmed Cell Death in Flap Ischemia/Reperfusion Injury.Biomolecules · 2025Review
- Cell-free adipose extract inhibits hypertrophic scar formation through collagen remodeling and antiangiogenesis.Open medicine (Warsaw, Poland) · 2025Article
- The Potential Application of Exosomes as Therapeutic Agents, Carriers, and Biomarkers in Skin Diseases.International journal of nanomedicine · 2025Review
- Macrophage-derived exosome piR-50971 exacerbates sepsis-induced myocardial injury by inhibiting autophagy through the upregulation of N6-Methyladenosine modification of mTOR.Burns & trauma · 2025Article
- Post-translational modifications orchestrate mTOR-driven cell death in cardiovascular disease.Frontiers in cardiovascular medicine · 2025Review
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Authors and funding
16 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: The recovery of ischemic skin flaps is a major concern in clinical settings. The purpose of this study is to evaluate the effects of engineered exosomes derived from FGF1 pre-conditioned adipose-derived stem cells (FEXO) on ischemic skin flaps. Method: 6 patients who suffered from pressure ulcer at stage 4 and underwent skin flaps surgery were recruited in this study to screen the potential targets of ischemic skin flaps in FGF family. FGF1 was co-incubated with adipose stem cells, and ultracentrifugation was applied to extract FEXO. Transcriptome sequencing analysis was used to determine the most effective microRNA in FEXO. Animal skin flaps models were established in our study to verify the effects of FEXO. Immunofluorescence (IF), western blotting (WB) and other molecular strategy were used to evaluate the effects and mechanism of FEXO. Results: FGF1 was expected to be the therapeutic and diagnostic target of ischemic skin flaps, but there is still some deficiency in rescuing skin flaps. FEXO significantly improved the viability of RPSFs and endothelial cells by inhibiting oxidative stress and alleviating apoptosis and pyroptosis through augmenting autophagy flux. In addition, FEXO inhibited the over-activated inflammation responses. Transcriptome sequencing analysis showed that miR-183-5p was significantly elevated in FEXO, and inhibiting miR-183-5p resulted in impaired protective effects of autophagy in skin flaps. The exosomal miR-183-5p markedly enhanced cell viability, inhibited oxidative stress and alleviated apoptosis and pyroptosis in endothelial cells by targeting GPR137 through Pi3k/Akt/mTOR pathway, indicating that GPR137 could also be a therapeutic target of ischemic skin flap. It was also notabale that FGF1 increased the number of exosomes by upregulating VAMP3, which may be a promising strategy for clinical translation. Conclusion: FEXO markedly improved the survivial rate of ischemic skin flaps through miR-183-5p/GPR137/Pi3k/Akt/mTOR axis, which would be a promising strategy to rescue ischemic skin flaps.
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