Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/131856
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Type: Journal article
Title: Human gingival fibroblast secretome accelerates wound healing through anti-inflammatory and pro-angiogenic mechanisms
Author: Ahangar, P.
Mills, S.J.
Smith, L.E.
Gronthos, S.
Cowin, A.J.
Citation: npj Regenerative Medicine, 2020; 5(1):1-10
Publisher: Nature Research
Issue Date: 2020
ISSN: 2057-3995
2057-3995
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Responsibility: 
Parinaz Ahangar, Stuart J. Mills, Louise E. Smith, Stan Gronthos and Allison J. Cowin
Abstract: Healing of the skin and oral mucosa utilises similar mechanisms of tissue repair, however, scarring and the rate of wound closure is vastly superior in the oral cavity suggesting differences between these two environments. One key difference is the phenotype of dermal fibroblasts compared to fibroblasts of gingival tissues. Human gingival fibroblasts (hGFs) are undifferentiated cells with multi-differentiation and self-renewal capacities. This study aimed to examine if delivering hGFs or their secretome, contained in hGF-conditioned media (hGF-CM), would improve healing of the skin and recapitulate features of oral healing. Human fibroblasts, keratinocytes and endothelial cells were first treated with hGF-CM and showed improved migration, proliferation and angiogenic functions. A significant reduction in macroscopic wound area and histologic dermal wound width, as well as an increased rate of re-epithelialisation, were observed in both hGFs and hGF-CM treated murine excisional wounds. This improvement was associated with reduced inflammation, increased angiogenesis and elevated collagen deposition. These findings demonstrate that treatment of dermal wounds with either hGFs or hGF-CM may provide beneficial gingival-like properties to dermal wounds and may be a potential opportunity for improving healing of the skin.
Rights: © The Author(s) 2020. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons. org/licenses/by/4.0/.
DOI: 10.1038/s41536-020-00109-9
Grant ID: http://purl.org/au-research/grants/nhmrc/1102617
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