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Background <p>Chronic lower extremity ulcers (CLEUs) remain a major clinical challenge due to their prolonged healing process and risk of amputation. Stem cell therapy (SCT) has emerged as a promising regenerative strategy, with various cell types being explored for their efficacy in treating CLEUs. This umbrella review aims to consolidate the existing evidence on stem cell interventions for CLEUs, providing a comprehensive overview of the current research landscape.</p> Methods <p>This umbrella review was conducted following the PRIOR and PRISMA guidelines. We searched across PubMed, Embase, Web of Science, and Cochrane Library databases for systematic reviews (SRs) and meta-analyses (MAs) that included randomized controlled trials (RCTs) on SCT for CLEUs. The methodological quality and evidence quality of the SRs/MAs were assessed by AMSTAR 2 and GRADE. A quantitative synthesis of all RCTs included in the SRs/MAs to obtain objective and updated conclusions.</p> Results <p>A total of 28 SRs/MAs involving 72 RCTs were included. Our updated meta-analysis reinforces that SCT offers potential therapeutic benefits for CLEUs, including improved healing rates, amelioration of tissue perfusion and pain-related indicators, and more favorable prognostic outcomes. No significant difference in all-cause mortality was observed between the SCT and control groups.</p> Conclusion <p>SCT represents a promising adjunctive therapy for CLEUs, with many studies demonstrating its safety and potential benefits. Since current evidence is limited by methodological flaws and study heterogeneity, high-quality RCTs in the future are crucial to prove the benefits of SCT for CLEUs truly.</p>

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Efficacy and safety of stem cell therapy in patients with chronic lower extremity ulcers: an umbrella review of systematic reviews and meta-analyses

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月20日

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  • Hong-Fei Wang,
  • Zheng Lin,
  • Chen-Xi Ma,
  • Shan Liu,
  • Yi Cao,
  • Qiu-Shuang Li

摘要

Background

Chronic lower extremity ulcers (CLEUs) remain a major clinical challenge due to their prolonged healing process and risk of amputation. Stem cell therapy (SCT) has emerged as a promising regenerative strategy, with various cell types being explored for their efficacy in treating CLEUs. This umbrella review aims to consolidate the existing evidence on stem cell interventions for CLEUs, providing a comprehensive overview of the current research landscape.

Methods

This umbrella review was conducted following the PRIOR and PRISMA guidelines. We searched across PubMed, Embase, Web of Science, and Cochrane Library databases for systematic reviews (SRs) and meta-analyses (MAs) that included randomized controlled trials (RCTs) on SCT for CLEUs. The methodological quality and evidence quality of the SRs/MAs were assessed by AMSTAR 2 and GRADE. A quantitative synthesis of all RCTs included in the SRs/MAs to obtain objective and updated conclusions.

Results

A total of 28 SRs/MAs involving 72 RCTs were included. Our updated meta-analysis reinforces that SCT offers potential therapeutic benefits for CLEUs, including improved healing rates, amelioration of tissue perfusion and pain-related indicators, and more favorable prognostic outcomes. No significant difference in all-cause mortality was observed between the SCT and control groups.

Conclusion

SCT represents a promising adjunctive therapy for CLEUs, with many studies demonstrating its safety and potential benefits. Since current evidence is limited by methodological flaws and study heterogeneity, high-quality RCTs in the future are crucial to prove the benefits of SCT for CLEUs truly.