Keratinocyte Function in Normal and Diabetic Wounds and Modulation by FOXO1.

Journal of Diabetes Research
Yulan Wang, Dana T Graves

Abstract

Diabetes has a significant and negative impact on wound healing, which involves complex interactions between multiple cell types. Keratinocytes play a crucial role in the healing process by rapidly covering dermal and mucosal wound surfaces to reestablish an epithelial barrier with the outside environment. Keratinocytes produce multiple factors to promote reepithelialization and produce factors that enhance connective tissue repair through the elaboration of mediators that stimulate angiogenesis and production of connective tissue matrix. Among the factors that keratinocytes produce to aid healing are transforming growth factor-β (TGF-β), vascular endothelial growth factor-A (VEGF-A), connective tissue growth factor (CTGF), and antioxidants. In a diabetic environment, this program is disrupted, and keratinocytes fail to produce growth factors and instead switch to a program that is detrimental to healing. Changes in keratinocyte behavior have been linked to high glucose and advanced glycation end products that alter the activities of the transcription factor, FOXO1. This review examines reepithelialization and factors produced by keratinocytes that upregulate connective tissue healing and angiogenesis and how they are altered b...Continue Reading

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Citations

May 5, 2021·International Wound Journal·Zbigniew SzczepanowskiLeszek Miszczyk
May 17, 2021·Translational Research : the Journal of Laboratory and Clinical Medicine·Kang I KoDana T Graves
Nov 9, 2021·Journal of Dental Research·Z ChinipardazS Yang

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BETA
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