[HTML][HTML] Epidermal deletion of HIF-2α stimulates wound closure

AS Cowburn, LEC Alexander, M Southwood… - Journal of Investigative …, 2014 - Elsevier
Journal of Investigative Dermatology, 2014Elsevier
Wound closure requires a complex series of micro-environmentally influenced events. A key
aspect of wound closure is the migration of keratinocytes across the open wound. It has
been found previously that the response to hypoxia via the HIF-1α transcription factor is a
key feature of wound closure. The need for hypoxic response is likely due to interrupted
wound vasculature, as well as infection, and in this work we investigated the need for a
highly related hypoxic response transcription factor, HIF-2α. This factor was deleted tissue …
Wound closure requires a complex series of micro-environmentally influenced events. A key aspect of wound closure is the migration of keratinocytes across the open wound. It has been found previously that the response to hypoxia via the HIF-1α transcription factor is a key feature of wound closure. The need for hypoxic response is likely due to interrupted wound vasculature, as well as infection, and in this work we investigated the need for a highly related hypoxic response transcription factor, HIF-2α. This factor was deleted tissue specifically in mice, and the resulting mice were found to have an accelerated rate of wound closure. This is correlated with a reduced bacterial load and inflammatory response in these mice. This indicates that manipulating or reducing the HIF-2α response in keratinocytes could be a useful means to accelerate wound healing and tissue repair.
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