Arhgef3 Regulates Hair Follicle Morphogenesis

September 2024

Krithika Kalyanakrishnan, Amy Beaudin, Alexandra Jetté, Sarah Ghezelbash, Diana Ioana Hotea, Jie Chen, Philippe Lefrançois, Mélanie Laurin

ARHGEF3 hair follicle morphogenesis hair follicle placodes embryonic development F-actin P-cadherin cell shape rearrangements epithelial appendages

TLDR ARHGEF3 is essential for proper hair follicle development.

This study investigates the role of ARHGEF3 in hair follicle morphogenesis using mouse models. It reveals that ARHGEF3 is crucial for the formation of hair follicle placodes during embryonic development. In mice lacking ARHGEF3, defects in placode compaction were observed, leading to impaired hair follicle downgrowth. The study also shows that ARHGEF3 promotes F-actin accumulation and P-cadherin enrichment, which are important for cell shape rearrangements. These findings highlight ARHGEF3 as a key regulator in hair follicle development and suggest its potential role in other epithelial appendages.

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