Capturing and profiling adult hair follicle stem cells

Rebecca J. Morris, Yaping Liu, Lee Marles, Zaixin Yang, Carol Trempus, Shulan Li, Jamie S. Lin, Janet A. Sawicki, George Cotsarelis

Research output: Contribution to journalArticle

973 Scopus citations

Abstract

The hair follicle bulge possesses putative epithelial stem cells. Characterization of these cells has been hampered by the inability to target bulge cells genetically. Here, we use a Keratin1-15 (Krt1-15, also known as K15) promoter to target mouse bulge cells with an inducible Cre recombinase construct or with the gene encoding enhanced green fluorescent protein (EGFP), which allow for lineage analysis and for isolation of the cells. We show that bulge cells in adult mice generate all epithelial cell types within the intact follicle and hair during normal hair follicle cycling. After isolation, adult Krt1-15-EGFP-positive cells reconstituted all components of the cutaneous epithelium and had a higher proliferative potential than Krt1-15-EGFP-negative cells. Genetic profiling of hair follicle stem cells revealed several known and unknown receptors and signaling pathways important for maintaining the stem cell phenotype. Ultimately, these findings provide potential targets for the treatment of hair loss and other disorders of skin and hair.

Original languageEnglish (US)
Pages (from-to)411-417
Number of pages7
JournalNature biotechnology
Volume22
Issue number4
DOIs
StatePublished - Apr 1 2004
Externally publishedYes

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  • Cite this

    Morris, R. J., Liu, Y., Marles, L., Yang, Z., Trempus, C., Li, S., Lin, J. S., Sawicki, J. A., & Cotsarelis, G. (2004). Capturing and profiling adult hair follicle stem cells. Nature biotechnology, 22(4), 411-417. https://doi.org/10.1038/nbt950