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Studying Hair Growth Cycle and its Effects on Mouse Skin

Authors
 Wei-Hung Wang  ;  Raul Ramos  ;  Kang-Yu Tai  ;  Yun-Shan Wu  ;  Tso-Yu Chang  ;  Jia-Yu Yan  ;  Maksim V Plikus  ;  Ji Won Oh  ;  Sung-Jan Lin 
Citation
 JOURNAL OF INVESTIGATIVE DERMATOLOGY, Vol.143(9) : 1638-1645, 2023-09 
Journal Title
JOURNAL OF INVESTIGATIVE DERMATOLOGY
ISSN
 0022-202X 
Issue Date
2023-09
MeSH
Animals ; Hair Follicle ; Humans ; Mice ; Phenotype ; Physical Examination ; Research Personnel* ; Research*
Keywords
ANAGEN ; FOLLICLES ; MICE ; NICHE ; PHASE ; REGENERATION ; STEM-CELL ACTIVATION ; WAVES
Abstract
Researchers should be aware that hair growth cycle drives prominent molecular, cellular, and morphological changes to the entire skin. Thus, hair growth constitutes a major experimental variable that influences the interpretation of dermatological studies. Hair growth in mice is neither asynchronous nor fully synchronized; rather, it occurs in waves that dynamically propagate across the skin. In consequence, any given area of mouse skin can contain hair follicles in different stages of the cycle in close physical proximity. Furthermore, hair growth waves in mice are initiated by probabilistic events at different time points and across stochastic locations. The consequence of such stochasticity is that precise patterns of hair growth waves differ from mouse to mouse, even in littermates of the same sex. However, such physiological stochasticity is commonly misconstrued as a significant hair growth phenotype in mutant mice or in drug-treated mice. The purpose of this article is to provide a set of guidelines for designing reliably interpretable murine studies on hair growth and to highlight key experimental caveats to be avoided. It also informs on how to account for and minimize the impact of physiological hair cycle differences when designing and interpreting nonhair growth dermatological studies in mice. © 2023 The Authors
Full Text
https://www.sciencedirect.com/science/article/pii/S0022202X23020493
DOI
10.1016/j.jid.2023.04.015
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anatomy (해부학교실) > 1. Journal Papers
Yonsei Authors
Oh, Ji Won(오지원) ORCID logo https://orcid.org/0000-0001-5742-5120
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/197754
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