Paracrine signalling between keratinocytes and SVF cells results in a new secreted cytokine profile during wound closure

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Date
2023-09-19
Authors
Balko, Stefan
Kerr, Evan
Buchel, Edward
Logsetty, Sarvesh
Raouf, Afshin
Journal Title
Journal ISSN
Volume Title
Publisher
BMC
Abstract

Stromal vascular fraction (SVF) cells, and the adipose-derived mesenchymal stem cells they contain, have shown enhanced wound healing in vitro and in vivo, yet their clinical application has been limited. In this regard, understanding the mechanisms that govern SVF-enhanced wound healing would improve their application in the clinic. Here, we show that the SVF cells and keratinocytes engage in a paracrine crosstalk during wound closure, which results in a new cytokine profile that is distinct from the cytokines regularly secreted by either cell type on their own. We identify 11 cytokines, 5 of which are not regularly secreted by the SVF cells, whose expressions are significantly increased during wound closure by the keratinocytes. This new cytokine profile could be used to accelerate wound closure and initiate re-epithelialization without the need to obtain the SVF cells from the patient.

Description
Keywords
Wound healing, Scratch assay, Cell migration, Keratinocytes, Fibroblasts, Cytokines
Citation
Stem Cell Research & Therapy. 2023 Sep 19;14(1):258