Related Experiment Video
Updated: May 22, 2026

Assessing Therapeutic Angiogenesis in a Murine Model of Hindlimb Ischemia
Published on: June 8, 2019
Insights into gene therapy for critical limb ischemia: the devil is in the details
Rosalinda Madonna1, Gregg Rokosh
1Institute of Cardiology, "G. D'Annunzio" University, Chieti, Italy.
Abstract:
Patients with critical limb ischemia (CLI) without potential for revascularization are currently without alternate therapies. Several gene therapy trials have tested angiogenesis factors, hepatic growth factor, vascular endothelial growth factor, and basic fibroblast growth factor, in rescuing CLI patients from amputation and mortality, and for improved quality of life including decreased pain, improved healing, and blood flow. Trial results have been variable, with HGF gene therapy being the most successful. New studies examining each of these angiogenic factors provide insights that will be useful for the design of effective therapeutic strategies.
Insights
Gene therapy using angiogenic factors shows promise for critical limb ischemia (CLI) patients lacking revascularization options. Hepatic growth factor (HGF) gene therapy has demonstrated the most success in preventing amputation and improving patient outcomes.
Area of Science:
- Vascular biology and regenerative medicine
- Gene therapy applications in cardiovascular disease
Background:
- Critical limb ischemia (CLI) poses a significant risk of amputation and mortality for patients unresectable by traditional revascularization methods.
- Current therapeutic options for CLI patients without revascularization potential are limited.
Purpose of the Study:
- To review and analyze the efficacy of gene therapy utilizing various angiogenic factors for treating CLI.
- To identify the most successful gene therapy approaches for improving CLI patient outcomes.
Main Methods:
- Review of clinical trial data for gene therapies targeting angiogenesis in CLI.
- Analysis of outcomes including amputation rates, mortality, pain reduction, wound healing, and blood flow.
- Focus on trials involving hepatic growth factor (HGF), vascular endothelial growth factor (VEGF), and basic fibroblast growth factor (bFGF).
Main Results:
- Gene therapy trials for CLI have yielded variable results.
- Hepatic growth factor (HGF) gene therapy has shown the most promising success in clinical trials.
- Angiogenic factors aim to improve blood flow, promote healing, and reduce pain in CLI patients.
Conclusions:
- Gene therapy represents a potential therapeutic avenue for CLI patients ineligible for revascularization.
- Further research into angiogenic factors, particularly HGF, is warranted to optimize treatment strategies.
- Insights from recent studies will guide the development of more effective gene-based therapies for CLI.
Related Concept Videos
Gene Therapy
Gene Therapy
Peripheral Artery Disease III: Interprofessional Care
Peripheral Artery Disease I: Introduction
Regulation of Angiogenesis and Blood Supply
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

