title: Adenovirus-mediated Wnt10b overexpression induces hair follicle regeneration.
abstract: Hair follicles periodically undergo regeneration. The balance between activators and inhibitors may determine the time required for telogen hair follicles to reenter anagen. We previously reported that Wnt10b (wingless-type mouse mammary tumor virus integration site family member 10b) could promote the growth of hair follicles in vitro. To unveil the roles of Wnt10b in hair follicle regeneration, we established an in vivo mouse model using intradermal injection. On the basis of this model, we found that Wnt10b could induce the biological switch of hair follicles from telogen to anagen when overexpressed in the skin. The induced hair follicles expressed structure markers and could cycle normally into catagen. Conversely, anagen onset was abrogated by the knockdown of Wnt10b with small interfering RNA (siRNA). The Wnt10b aberrant expression data suggest that it is one of the activators of hair follicle regeneration. The β-catenin protein is translocated to the nucleus in Wnt10b-induced hair follicles. The biological effects of Wnt10b were abrogated when β-catenin expression was downregulated with siRNA. These data revealed that Wnt10b might induce hair follicle regeneration in vivo via the enhanced activation of the canonical Wnt signaling pathway. To our knowledge, our data provide previously unreported insights into the regulation of hair follicle cycling and provide potential therapeutic targets for hair follicle-related diseases.
authors: Department of Cell Biology, The Third Military Medical University, Chongqing, China.
authors: Yu-Hong
authors: YH
authors: Li
authors: Kun
authors: K
authors: Zhang
authors: Ke
authors: K
authors: Yang
authors: Ji-Xing
authors: JX
authors: Ye
authors: Yi-Zhan
authors: YZ
authors: Xing
authors: Hai-Ying
authors: HY
authors: Guo
authors: Fang
authors: F
authors: Deng
authors: Xiao-Hua
authors: XH
authors: Lian
authors: Tian
authors: T
authors: Yang
mesh_terms: D021581:Active Transport, Cell Nucleus / Q000502:physiology; D000256:Adenoviridae; D000818:Animals; D005260:Female; D015967:Gene Expression Regulation, Viral; D020868:Gene Silencing; D005822:Genetic Vectors; D018859:Hair Follicle / Q000166:cytology / Q000254:growth & development*; D051379:Mice; D008810:Mice, Inbred C57BL; D012038:Regeneration; D015854:Up-Regulation; D051153:Wnt Proteins / Q000096:biosynthesis* / Q000235:genetics; D060449:Wnt Signaling Pathway / Q000502:physiology; D051176:beta Catenin / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology
chemical_list: D051153:Wnt Proteins; C102068:Wnt10b protein, mouse; D051176:beta Catenin