FOXO1, TGF-β Regulation and Wound Healing
نویسندگان
چکیده
Re-epithelialization is a complex process that involves migration and proliferation of keratinocytes, in addition to the production of cytokines and growth factors that affect other cells. The induction of transcription factors during these processes is crucial for successful wound healing. The transcription factor forkhead boxO-1 (FOXO1) has recently been found to be an important regulator of wound healing. In particular, FOXO1 has significant effects through regulation of transforming growth factor-beta (TGF-β) expression and protecting keratinocytes from oxidative stress. In the absence of FOXO1, there is increased oxidative damage, reduced TGF-β1 expression, reduced migration and proliferation of keratinocytes and increased keratinocytes apoptosis leading to impaired re-epithelialization of wounds.
منابع مشابه
FOXO1 promotes wound healing through the up-regulation of TGF-β1 and prevention of oxidative stress
Keratinocyte mobilization is a critical aspect of wound re-epithelialization, but the mechanisms that control its precise regulation remain poorly understood. We set out to test the hypothesis that forkhead box O1 (FOXO1) has a negative effect on healing because of its capacity to inhibit proliferation and promote apoptosis. Contrary to expectations, FOXO1 is required for keratinocyte transitio...
متن کاملFOXO1 Promotes Wound Healing Through the Up-Regulation of TGF-Î21 and Prevention of Oxidative Stress
Keratinocyte mobilization is a critical aspect of wound re-epithelialization, but the mechanisms that control its precise regulation remain poorly understood. We set out to test the hypothesis that forkhead box O1 (FOXO1) has a negative effect on healing because of its capacity to inhibit proliferation and promote apoptosis. Contrary to expectations, FOXO1 is required for keratinocyte transitio...
متن کاملFoxo1 Inhibits Diabetic Mucosal Wound Healing but Enhances Healing of Normoglycemic Wounds
Re-epithelialization is an important part in mucosal wound healing. Surprisingly little is known about the impact of diabetes on the molecular events of mucosal healing. We examined the role of the transcription factor forkhead box O1 (Foxo1) in oral wounds of diabetic and normoglycemic mice with keratinocyte-specific Foxo1 deletion. Diabetic mucosal wounds had significantly delayed healing wit...
متن کاملAssay of Tgf-β And B-Fgf on the Potential of Peripheral Blood-Borne Stem Cells and Bone Marrow-Derived Stem Cells in Wound Healing in a Murine Model
Purpose: Effects of TGF-b and b-FGF on the Potential of Peripheral Blood-Borne Stem Cells and Bone Marrow-Derived Stem Cells In Wound Healing in a Murine Model.Materials and Methods: Peripheral blood mesenchymal stem cells (PBMSCs) and bone marrow stem cells (BMSCs) cultured in media with transforming growth factor-beta (TGF-b) and basic fibroblast growth factor (b-FGF). Stem cells labeled with...
متن کاملDehydroabietic acid reverses TNF-α-induced the activation of FOXO1 and suppression of TGF-β1/Smad signaling in human adult dermal fibroblasts.
Wound healing impairment is a well-documented phenomenon in clinical and experimental diabetes, and in diabetic wound healing impaired fibroblast has been linked to increased levels of tumor necrosis factor-α (TNF-α). A number of signaling pathways including TNF-α/forkhead box O1 (FOXO1) and transforming growth factor-β1 (TGF-β1)/Smads in fibroblasts appear to play a cardinal role in diabetic w...
متن کامل