articleJournal of Medicinal ChemistrySep 5, 2025Closed access

Cyclic Heptapeptide FZ1 Acts as an Integrin αvβ3 Agonist to Facilitate Diabetic Skin Wound Healing by Enhancing Angiogenesis

Kunming Medical University · Department of Embryology · +5 more institutions

PubMed
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Abstract

Diabetic wound healing remains a persistent clinical challenge, necessitating the development of effective therapeutic agents and a deeper understanding of regulatory mechanisms. The cyclic heptapeptide FZ1, characterized by favorable biocompatibility, exhibited significantly greater efficacy than rh-bFGF and CyRL-QN15 in promoting cell proliferation and migration. In diabetic wound models, FZ1 markedly accelerated tissue regeneration and stimulated angiogenesis, as indicated by the upregulation of CD31 and α-SMA. Mechanistic investigations combining single-cell RNA sequencing, RNA interference, surface plasmon resonance, and molecular docking revealed that FZ1 directly bound to integrin αvβ3, activating…

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