Molekularne mechanizmy działania czynnika transkrypcyjnego FOXN1 w skórze
Abstract
The review focuses on the research related to the function and the molecular mechanisms of transcription factor FOXN1 action. In mammals, FOXN1 is localized in the epithelium of the skin and thymus. In the skin, FOXN1 stimulates keratinocytes differentiation, regulates pigmentation process and participates in hair development and cycling. In skin wound healing processes, FOXN1 contributes to scar formation due to its involvement in reepithelialization and epithelialmesenchymal transition (EMT). Foxn1-/- mice displayed regenerative (scar-free) skin wound healing resolution, which is unique for adult mammals but characteristic for mammalian fetuses. A detailed comparative analysis of transcriptomes from the skin of adult Foxn1-/- mice and the skin of mouse fetuses (14th day of embryonic development) revealed substantial similarities in the gene expression related to tissue remodelling, cytoskeletal rearrangements, wound healing, the immune response and differentiation. The results suggest that FOXN1 is a key factor regulating the transition from scar-free (regenerative) to scar-forming (reparative) skin wound healing process during fetal development
© 2021 Barbara Gawrońska-Kozak, Anna Kur-Piotrowska, Joanna Wiśniewska, Marta Kopcewicz, published by Hirszfeld Institute of Immunology and Experimental Therapy
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