Dysregulated Behavior of Hair Follicle Stem Cells Triggers Alopecia and Provides Potential Therapeutic Targets

The document discusses the role of hair follicle stem cell (HFSC) behavior in alopecia, a condition causing hair loss. Dysregulated HFSC behavior, influenced by factors such as HFSC metabolism, aging, and the microenvironment, can lead to hair growth disorders. Potential therapeutic targets include lactate generation, pyruvate entry into mitochondria, the transcription factor nuclear factor of activated T cell c1 (Nfatc1), and Breast cancer susceptibility gene 1 (BRCA1). The study also highlights the role of the extracellular matrix (ECM) and various cells and signals in the HFSC microenvironment in hair regeneration disorders. Manipulating these components could provide novel therapeutic strategies for hair loss. The study by Wen et al. demonstrated that human HFSCs cultured with the Rho-associated protein kinase (ROCK) inhibitor Y-27632 showed enhanced adhesion and proliferation, maintaining stemness and enhancing hair follicle regeneration. MicroRNAs, such as miR-22-5p and miR-214, were identified as potential therapeutic targets for hair loss. The review concluded that a better understanding of HFSC behavior could lead to the development of therapeutic strategies for alopecia.