Cited by 119Wound Healing and TreatmentsProteoglycans and glycosaminoglycans researchTGF-β signaling in diseases

Expression of Glycosaminoglycans and Small Proteoglycans in Wounds: Modulation by the Tripeptide–Copper Complex Glycyl-L-Histidyl-L-Lysine-Cu2+

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Siméon, Alain, Wegrowski, Yanusz, Bontemps, Yannick, Maquart, François-Xavier·2000·Journal of Investigative Dermatology

Abstract

Glycyl-histidyl-lysine-Cu(2+) is a tripeptide-copper complex previously shown to be an activator of wound healing. We have investigated the effects of glycyl-histidyl-lysine-Cu(2+) on the synthesis of glycosaminoglycans and small proteoglycans in a model of rat experimental wounds and in rat dermal fibroblast cultures. Repeated injections of glycyl-histidyl-lysine-Cu(2+) (2 mg per injection) stimulated the wound tissue production, as appreciated by dry weight and total protein measurements. This stimulation was accompanied by an increased production of type I collagen and glycosaminoglycans (assessed, respectively, by hydroxyproline and uronic acid contents of the chamber). Electrophoretic analysis of wound tissue glycosaminoglycans showed an accumulation of chondroitin sulfate and dermatan sulfate in control wound chambers, whereas the proportion of hyaluronic acid decreased with time. The accumulation of chondroitin sulfate and dermatan sulfate was enhanced by glycyl-histidyl-lysine-Cu(2+) treatment. The expression of two small proteoglycans of the dermis, decorin and biglycan, was analyzed by northern blot. The biglycan mRNA steady-state level in the chamber was maximal at day 12, whereas the decorin mRNA increased progressively until the end of the experiment (day 22). Glycyl-histidyl-lysine-Cu(2+) treatment increased the mRNA level of decorin and decreased those of biglycan. In dermal fibroblast cultures, the stimulation of decorin expression by glycyl-histidyl-lysine-Cu(2+) was also found. In contrast, biglycan expression was not modified. These results show that the expression of different proteoglycans in wound tissue are regulated in a different manner during wound healing. The glycyl-histidyl-lysine-Cu(2+) complex is able to modulate the expression of the extracellular matrix macromolecules differently during the wound repair process.

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Crossref · 10.1046/j.1523-1747.2000.00166.x

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  • GHK-Cu stimulated the production of collagen, dermatan sulfate, chondroitin sulfate, and the small proteoglycan decorin.

    “In 2000, the same group demonstrated, using mRNA analysis, that GHK-Cu stimulated the production of collagen, dermatan sulfate, chondroitin sulfate, and the small proteoglycan decorin [27].”

    From GHK-Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes (2015) · cites this paper as [27]

    The paper reports increased collagen content in wound chambers and increased chondroitin sulfate, dermatan sulfate, and decorin expression or production. However, the citing sentence overstates the role of mRNA analysis: the paper measured collagen and glycosaminoglycans biochemically, while mRNA analysis was used for decorin. The decisive passages are in “GHK-Cu increases collagen and GAG accumulation in wound chambers” and “GHK-Cu modulates the distribution of GAG in wound tissue”; page numbers were not supplied. (LLM, conf=0.87)

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  • GHK stimulates synthesis of collagen, selected glycosaminoglycans and small proteoglycan decorin.

    “A number of experiments established that GHK stimulates synthesis of collagen, selected glycosaminoglycans and small proteoglycan decorin [8,9].”

    From Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data (2018) · cites this paper as [8]

    The wound-chamber results report increased collagen content and GAG accumulation after GHK-Cu treatment, and the paper states that chondroitin sulfate and dermatan sulfate production increased. Its fibroblast results also show increased decorin production. The experiments tested the copper complex GHK-Cu, not GHK alone, and measured collagen accumulation rather than collagen synthesis directly (pages not specified in our copy). (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • GHK-Cu activates the synthesis of matrix compounds in vivo that are needed for resistant new tissue.

    “It is also involved in the activation of the synthesis of matrix compounds in vivo, which are critical for the formation of a resistant new tissue [12–13].”

    From The potential of GHK as an anti-aging peptide (2020) · cites this paper as [12]

  • GHK stimulates production of decorin in early wound healing experiments.

    “In early wound healing experiments, GHK was found to stimulate production of a small, leucinerich proteoglycan, decorin.”

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Authors
Siméon, A., Wegrowski, Y., Bontemps, Y., & Maquart, F.-X.
Affiliations
Centre National de la Recherche Scientifique (FR)
Corresponding author
Maquart, François-Xavier
Venue
Journal of Investigative Dermatology
Publisher
Elsevier BV
Published
2000-12
Volume
115
Issue
6
Pages
962-968
ISSN
0022-202X (ISSN-L)
OpenAlex
W2048604783
Cited by
119
References
46
Citations by year
2026: 11 · 2025: 4 · 2024: 5 · 2023: 8 · 2022: 6 · 2021: 5 · 2020: 6 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 5 · 2015: 8 · 2014: 5 · 2013: 3 · 2012: 5
FWCI
0.80
Type
journal article
Language
en
Open access
Locations
  • Journal of Investigative Dermatology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Centre National de la Recherche Scientifique
  • Université de Reims Champagne-Ardenne
Topics
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
Keywords
wound healing, glycosaminoglycans, small proteoglycans, decorin, biglycan, chondroitin sulfate, dermatan sulfate, hyaluronic acid, type I collagen, extracellular matrix, dermal fibroblasts, gene expression regulation
MeSH terms
Animals, Fibroblasts, Glycosaminoglycans, Male, Oligopeptides, Proteoglycans, Wound Healing, Wounds and Injuries, Transforming Growth Factor beta, Extracellular Matrix Proteins, Rats, Sprague-Dawley, Rats, Decorin, Biglycan

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