Study summary · research use only
Exploring the Role of Tripeptides in Wound Healing and Skin Regeneration: A Comprehensive Review
Plain-language summary
Paraphrased from the published abstract below — not a verdict on whether anything works.
This review, covering studies from 2016 to 2025, discusses tripeptides in wound healing and skin regeneration across cited studies (species not specified), describing mechanisms including stimulation of fibroblast migration, collagen deposition, and angiogenesis, plus antimicrobial and anti-inflammatory properties. It describes GHK-based formulations, including TriHex and TriHex 2.0, as associated with fibroblast migration, extracellular matrix remodeling, collagen and elastin synthesis, and wound closure; KdPT as associated with reduced hyperglycemia-induced oxidative stress and restored keratinocyte function; and KPV-loaded hydrogels as associated with reduced inflammation and antimicrobial activity against MRSA. It also discusses lipotripeptides (DICAMs) disrupting bacterial biofilms and GPE supporting neuroprotection via ERK and PI3K/Akt signaling.
Abstract
Wound healing is a complex and dynamic process that requires the coordination of cellular, molecular, and physiological events to restore tissue integrity. Despite notable advances in treatment strategies, optimizing healing outcomes, particularly in chronic wounds, remains a major challenge. Emerging evidence highlights the therapeutic promise of peptides, especially tripeptides, in accelerating tissue repair through diverse mechanisms. These short peptides regulate key processes such as cell migration, proliferation, and differentiation, while also modulating inflammation, promoting angiogenesis, and facilitating extracellular matrix (ECM) remodeling. This review, covering studies published between 2016 and 2025, explores the role of tripeptides in enhancing wound repair, emphasizing their biological functions, mechanisms of action, and therapeutic applications. Recent findings demonstrate that tripeptides can stimulate fibroblast migration, enhance collagen deposition, and support angiogenesis. In addition, they exhibit antimicrobial and anti-inflammatory properties, making them valuable candidates for both acute and chronic wound management. GHK-based formulations, including nanoparticle conjugates, hydrogels, and clinical derivatives such as TriHex and TriHex 2.0, enhance fibroblast migration, ECM remodeling, collagen and elastin synthesis, and wound closure while providing antimicrobial activity. KdPT mitigates hyperglycemia-induced oxidative stress and restores keratinocyte function, whereas KPV-loaded hydrogels reduce inflammation, promote tissue regeneration, and combat MRSA infections. Additionally, lipotripeptides (DICAMs) inhibit and disrupt bacterial biofilms, and GPE supports neuroprotection and regeneration through ERK and PI3K/Akt signaling activation. Beyond wound repair, this review also discusses comparative physicochemical properties and wound healing applications of tripeptides versus larger peptides, factors influencing their performance, strategies for combination with biomaterial scaffolds, and emerging applications in fields such as cancer and cosmetics. Collectively, tripeptides represent a promising class of multifunctional bioactive molecules in wound care, offering novel avenues for targeted tissue regeneration. Future research should focus on improving their stability, bioavailability, and delivery systems to fully harness their clinical potential in regenerative medicine.
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