A New Model of Blood Vessel Remodeling
January 2002
vascular remodeling hair follicles depilation-induced hair growth cycle VEGF angiopoietins angiogenesis anagen catagen microvessel density endothelial cells perifollicular vasculature vascular growth hair growth cycle vascular endothelial growth factor blood vessel growth factors growth phase regression phase blood vessel density blood vessel cells around hair follicle blood vessels
TLDR Hair follicles influence blood vessels during hair growth, suggesting potential treatments for hair growth issues.
The study explored the hypothesis that physiological vascular remodeling occurs in the skin, particularly in relation to hair follicles, by analyzing the depilation-induced hair growth cycle in mouse skin. It was found that hair follicles can modulate their surrounding vasculature by synthesizing blood vessel-specific growth factors like VEGF and angiopoietins, which change in expression according to the hair growth cycle. The research demonstrated that angiogenesis occurs during anagen (growth phase) and vascular regression during catagen (regression phase), with significant changes in microvessel density and endothelial cell numbers. The study highlighted the complexity of growth factors involved in hair growth-associated vascular remodeling and suggested that manipulating the perifollicular vasculature could be a potential therapeutic approach for hair growth disorders.
