The Role of Smads in Skin Development

March 2008 in “ The journal of investigative dermatology/Journal of investigative dermatology ”

P. C. Owens, Gangwen Han, Allen G. Li, Xiaojing Wang

Smads TGF-β Activin BMP signaling Smad-4 hair follicle differentiation Smad-7 hair follicle development WNT/β-catenin signaling ubiquitin-mediated β-catenin degradation TGF-beta BMP WNT signaling

Studysummary This review examines the roles of Smad-4 and Smad-7 in hair follicle differentiation and development through BMP signaling and TGFβ/Activin/BMP pathway inhibition but reports no new experimental results.

Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer

The study explored the role of Smads in skin development, focusing on their mediation of TGF-β, Activin, and BMP signaling pathways. It found that Smad-4 primarily influenced hair follicle differentiation through BMP signaling, while Smad-7 impacted hair follicle development by blocking the TGFβ/Activin/BMP pathway and inhibiting WNT/β-catenin signaling via ubiquitin-mediated β-catenin degradation. Other Smads were found to have redundant or dispensable roles in skin development. The review highlighted both traditional and novel signaling pathways involving Smads in skin development.

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Research cited in this study

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research Defining BMP Functions in the Hair Follicle by Conditional Ablation of BMP Receptor IA

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research Noggin Is Required for Induction of the Hair Follicle Growth Phase in Postnatal Skin

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