147 citations
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September 2006 in “Developmental Cell” This study found that Smad7 perturbs hair follicle development while promoting sebaceous gland formation by antagonizing Wnt/β-catenin signaling in transgenic mice.
June 2008 in “The Knowledge Bank (The Ohio State University)” This study found that deleting Smad2 and Smad3 in murine skin leads to severe skin abnormalities and cancerous lesions, similar to but more severe than those seen in Smad4 mutants, indicating the critical role of TGF-β signaling in skin development.
43 citations
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December 2008 in “Molecular biology of the cell” This study found that disrupting Smad4 signaling in young mice led to overactivation of follicle stem cells, causing hyperplasia and depletion of the stem cell niche.
59 citations
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March 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” 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.
14 citations
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April 2008 in “PROTEOMICS” This study suggests that the down-regulation of 14-3-3 proteins in wild-type keratinocytes, absent in Smad4 mutant keratinocytes, might contribute to the failure of hair follicles to initiate catagen in Smad4 knockout mice.