RT Book, Section A1 Cotsarelis, George A1 Botchkarev, Vladimir A2 Kang, Sewon A2 Amagai, Masayuki A2 Bruckner, Anna L. A2 Enk, Alexander H. A2 Margolis, David J. A2 McMichael, Amy J. A2 Orringer, Jeffrey S. SR Print(0) ID 1161320823 T1 Biology of Hair Follicles T2 Fitzpatrick's Dermatology, 9e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9780071837798 LK dermatology.mhmedical.com/content.aspx?aid=1161320823 RD 2024/04/19 AB AT-A-GLANCEThe primary purpose of hair in humans is to influence social interactions.Hair follicle development depends on interactions between epithelial and mesenchymal cells. The genes important for this interaction are slowly being elucidated.Genes important for hair follicle development also play a role in hair follicle cycling.The hair follicle bulge possesses stem cells important for the continual regeneration of the follicle during cycling.Hair pigmentation depends on melanocyte stem cells and differentiated cells in the follicle. Many genes important for melanocyte behavior and hair pigmentation have been defined.