Miz1 Is Required for Hair Follicle Structure and Hair Morphogenesis

The study concluded that the transcription factor Miz1 was essential for proper hair follicle structure and morphogenesis. Mice lacking Miz1 exhibited significant defects, including rough fur, altered hair follicle orientation, irregular pigmentation, and disturbed hair fiber structure. The deletion of Miz1 led to delayed catagen phase, increased keratinocyte proliferation, and a thickened epidermis at the hair funnel orifice. Aged mice showed reduced hair density and pigmentary incontinence. These findings highlighted Miz1's critical role in regulating keratinocyte proliferation, differentiation, and hair morphogenesis, providing insights into the molecular mechanisms underlying hair growth and potential implications for hair loss disorders.