Endophytic Bioactive Compounds for Wound Healing: A Review of Biological Activities and Therapeutic Potential

Endophytic microorganisms inhabiting plant tissues constitute a unique and largely untapped reservoir of bioactive metabolites, including phenolics, terpenoids, alkaloids, polysaccharides, and anthraquinones, among others. This review focuses on the potential of these compounds to modulate the complex processes of wound repair, such as hemostasis, inflammation, proliferation, and remodeling. Uniquely, this review delineates the specific mechanisms supported not only by indirect evidence but by primary research directly linking endophytic metabolites to wound repair. We synthesized and evaluated evidence from 18 studies, of which over 75% directly assessed wound healing effects through in vitro and in vivo models. Metabolites from endophytic microorganisms promoted wound contraction, suppressed biofilm formation by key pathogens (e.g., MRSA, P. aeruginosa), and accelerated tissue re-epithelialization in animal models. Other compounds demonstrated >99% wound closure in rats, while several extracts showed anti-inflammatory and cytocompatible profiles. Nevertheless, the majority of studies applied unstandardized methods and used crude extracts, hindering precise structure-activity assessment. The originality of this review lies in drawing attention to direct evidence for wound healing from diverse endophytic sources and systematically identifying gaps between preclinical promise and clinical translation, positioning endophytes as a sustainable platform for next-generation wound therapeutics.

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