β-Catenin-Dependent Wnt Signaling : A Pathway in Acute Cutaneous Wounding
BACKGROUND: Acute wound healing is a dynamic process that results in the formation of scar tissue. The mechanisms of this process are not well understood; numerous signaling pathways are thought to play a major role. Here, the authors have identified β-catenin-dependent Wnt signaling as an early acute-phase reactant in acute wound healing and scar formation.
METHODS: The authors created 6-mm full-thickness excisional cutaneous wounds on adult β-catenin-dependent Wnt signal (BAT-gal) reporter mice. The expression of canonical Wnt after wounding was analyzed using X-gal staining and quantitative real-time polymerase chain reaction. Next, recombinant mouse Wnt3a (rmWnt3a) was injected subcutaneously to the wound edge, daily. The mice were killed at stratified time points, up to 15 days after injury. Histologic analysis, quantitative real-time polymerase chain reaction, and Western blot were performed.
RESULTS: Numerous individual Wnt ligands increased in expression after wounding, including Wnt3a, Wnt4, Wnt10a, and Wnt11. A specific pattern of Wnt activity was observed, localized to the hair follicle and epidermis. Mice injected with rmWnt3a exhibited faster wound closure, increased scar size, and greater expression of fibroblast growth factor receptor-2 and type I collagen.
CONCLUSIONS: The authors' data suggest that β-catenin-dependent Wnt signaling expression increases shortly after cutaneous wounding, and exogenous rmWnt3a accelerates reepithelialization, wound matrix maturation, and scar formation. Future experiments will focus on the intersection of Wnt signaling and other known profibrotic cytokines.
| Errataetall: |
ReprintIn: Plast Reconstr Surg. 2018 Oct;142(4):1107. - PMID 30252825 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:141 |
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| Enthalten in: |
Plastic and reconstructive surgery - 141(2018), 3 vom: 15. März, Seite 669-678 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Carre, Antoine L [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 06.08.2018 Date Revised 09.01.2021 published: Print ReprintIn: Plast Reconstr Surg. 2018 Oct;142(4):1107. - PMID 30252825 Citation Status MEDLINE |
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| doi: |
10.1097/PRS.0000000000004170 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
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| 500 | |a ReprintIn: Plast Reconstr Surg. 2018 Oct;142(4):1107. - PMID 30252825 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: Acute wound healing is a dynamic process that results in the formation of scar tissue. The mechanisms of this process are not well understood; numerous signaling pathways are thought to play a major role. Here, the authors have identified β-catenin-dependent Wnt signaling as an early acute-phase reactant in acute wound healing and scar formation | ||
| 520 | |a METHODS: The authors created 6-mm full-thickness excisional cutaneous wounds on adult β-catenin-dependent Wnt signal (BAT-gal) reporter mice. The expression of canonical Wnt after wounding was analyzed using X-gal staining and quantitative real-time polymerase chain reaction. Next, recombinant mouse Wnt3a (rmWnt3a) was injected subcutaneously to the wound edge, daily. The mice were killed at stratified time points, up to 15 days after injury. Histologic analysis, quantitative real-time polymerase chain reaction, and Western blot were performed | ||
| 520 | |a RESULTS: Numerous individual Wnt ligands increased in expression after wounding, including Wnt3a, Wnt4, Wnt10a, and Wnt11. A specific pattern of Wnt activity was observed, localized to the hair follicle and epidermis. Mice injected with rmWnt3a exhibited faster wound closure, increased scar size, and greater expression of fibroblast growth factor receptor-2 and type I collagen | ||
| 520 | |a CONCLUSIONS: The authors' data suggest that β-catenin-dependent Wnt signaling expression increases shortly after cutaneous wounding, and exogenous rmWnt3a accelerates reepithelialization, wound matrix maturation, and scar formation. Future experiments will focus on the intersection of Wnt signaling and other known profibrotic cytokines | ||
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| 700 | 1 | |a Galvez, Michael G |e verfasserin |4 aut | |
| 700 | 1 | |a Longaker, Michael T |e verfasserin |4 aut | |
| 700 | 1 | |a Lorenz, H Peter |e verfasserin |4 aut | |
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