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Autocrine production of biologically active hepatocyte growth factor (HGF) by injured human skin
Linköping University, Department of Molecular and Clinical Medicine, Infectious Diseases. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Molecular and Clinical Medicine, Infectious Diseases. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Biomedicine and Surgery, Plastic Surgery, Hand Surgery and Burns. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Molecular and Clinical Medicine, Infectious Diseases. Linköping University, Faculty of Health Sciences.
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2006 (English)In: Journal of dermatological science (Amsterdam), ISSN 0923-1811, E-ISSN 1873-569X, Vol. 43, no 1, 49-56 p.Article in journal (Refereed) Published
Abstract [en]

Background

Hepatocyte growth factor (HGF) is a potent regenerative factor involved in wound healing. Previous studies have shown that mesenchymal cells produce HGF, stimulating epithelial cells in a paracrine fashion.

Objective

To examine whether autocrine HGF production by keratinocytes can occur upon skin injury.

Methods

A 31-year-old male patient sustained a burn affecting 80% of his total body surface area. Biopsies were taken from intact skin near the injured area, and skin keratinocytes were separated and cultured. Conditioned medium from keratinocytes was analyzed for HGF by ELISA, surface plasmon resonance (SPR), and dot blotting. Binding of HGF from conditioned medium to its receptor, c-Met, was compared with recombinant HGF by SPR. Finally, we examined the motogenic effect on mouse transformed skin epithelial cells (CCL-53.1) of HGF from conditioned medium.

Results

HGF was detected in the cultured keratinocyte medium. Similar to recombinant HGF, HGF from conditioned medium had a high affinity for dextran sulfate and albumin, and the same epitopes were engaged by the interaction of HGF with the c-Met receptor. The conditioned medium from keratinocytes obtained from the burn patient, but not medium from keratinocytes obtained from healthy volunteers, accelerated the motogenesis of CCL-53.1 cells. Unexpectedly, anti-HGF antibodies did not prevent this effect. However, anti-c-Met antibodies completely inhibited the motogenic effect.

Conclusion

Upon injury, human skin keratinocytes might produce biologically active HGF in an autocrine fashion. This HGF might have different structural and/or biological properties from HGF produced by mesenchymal cells.

Place, publisher, year, edition, pages
2006. Vol. 43, no 1, 49-56 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-34983DOI: 10.1016/j.jdermsci.2006.03.004Local ID: 24445OAI: oai:DiVA.org:liu-34983DiVA: diva2:255831
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13Bibliographically approved

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Nayeri, FaribaXu, JunjangAbdiu, AvniNayeri, TayebAili, DanielLiedberg, BoCarlsson, Uno

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Nayeri, FaribaXu, JunjangAbdiu, AvniNayeri, TayebAili, DanielLiedberg, BoCarlsson, Uno
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Infectious DiseasesFaculty of Health SciencesPlastic Surgery, Hand Surgery and BurnsApplied PhysicsThe Institute of TechnologyChemistry
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Journal of dermatological science (Amsterdam)
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