title: Roles of GasderminA3 in Catagen-Telogen Transition During Hair Cycling.
abstract: Hair follicles undergo cyclic behavior through regression (catagen), rest (telogen), and regeneration (anagen) during postnatal life. The hair cycle transition is strictly regulated by the autonomous and extrinsic molecular environment. However, whether there is a switch controlling catagen-telogen transition remains largely unknown. Here we show that hair follicles cycle from catagen to the next anagen without transitioning through a morphologically typical telogen after Gsdma3 mutation. This leaves an ESLS (epithelial strand-like structure) during the time period corresponding to telogen phase in WT mice. Molecularly, Wnt10b is upregulated in Gsdma3 mutant mice. Restoration of Gsdma3 expression in AE (alopecia and excoriation) mouse skin rescues hair follicle telogen entry and significantly decreases the Wnt10b-mediated Wnt/β-catenin signaling pathway. Overexpression of Wnt10b inhibits telogen entry by increasing epithelial strand cell proliferation. Subsequently, hair follicles with a Gsdma3 mutation enter the second anagen simultaneously as WT mice. Hair follicles cannot enter the second anagen with ectopic WT Gsdma3 overexpression. A luciferase reporter assay proves that Gsdma3 directly suppresses Wnt signaling. Our findings suggest that Gsdma3 has an important role in catagen-telogen transition by balancing the Wnt signaling pathway and that morphologically typical telogen is not essential for the initiation of a new hair cycle.
authors: Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China.
authors: Xiufeng
authors: X
authors: Bai
authors: Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; '111' Project Laboratory of Biomechanics and Tissue Repair, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; Department of Pathology, University of Southern California, Los Angeles, California, USA. Electronic address: lmxgoodluck@163.com.
authors: Mingxing
authors: M
authors: Lei
authors: Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China.
authors: Jiazhong
authors: J
authors: Shi
authors: Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China.
authors: Yu
authors: Y
authors: Yu
authors: Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China.
authors: Weiming
authors: W
authors: Qiu
authors: Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; '111' Project Laboratory of Biomechanics and Tissue Repair, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
authors: Xiangdong
authors: X
authors: Lai
authors: Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China.
authors: Yingxin
authors: Y
authors: Liu
authors: Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China.
authors: Tian
authors: T
authors: Yang
authors: Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; '111' Project Laboratory of Biomechanics and Tissue Repair, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
authors: Li
authors: L
authors: Yang
authors: Department of Pathology, University of Southern California, Los Angeles, California, USA.
authors: Randall B
authors: RB
authors: Widelitz
authors: Department of Pathology, University of Southern California, Los Angeles, California, USA.
authors: Cheng-Ming
authors: CM
authors: Chuong
authors: Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China. Electronic address: 129hx@sina.com.
authors: Xiaohua
authors: X
authors: Lian
mesh_terms: D000505:Alopecia / Q000235:genetics* / Q000473:pathology; D000818:Animals; D002478:Cells, Cultured; D005786:Gene Expression Regulation; D006197:Hair / Q000254:growth & development*; D018859:Hair Follicle / Q000166:cytology* / Q000473:pathology; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL; D009154:Mutation; D011506:Proteins / Q000235:genetics*; D011518:Proto-Oncogene Proteins / Q000235:genetics; D012038:Regeneration / Q000502:physiology; D015854:Up-Regulation; D051153:Wnt Proteins / Q000235:genetics; D060449:Wnt Signaling Pathway / Q000235:genetics; D051176:beta Catenin / Q000378:metabolism; D000094524:Gasdermins
chemical_list: D011506:Proteins; D011518:Proto-Oncogene Proteins; D051153:Wnt Proteins; D051176:beta Catenin; C499121:Gsdma3 protein, mouse; D000094524:Gasdermins; C491119:WNT10B protein, human