Apoptosis signal-regulating kinase 1 (ASK1) is a member of the mitogen-activated protein 3-kinase family that activates both c-Jun NH2-terminal kinase and p38 pathways in response to inflammatory cytokines and physicochemical stress. We report that ASK1 deficiency in mice results in dramatic retardation of wounding-induced hair regrowth in skin. Oligonucleotide microarray analysis revealed that expression of several chemotactic and activating factors for macrophages, as well as several macrophage-specific marker genes, was reduced in the skin wound area of ASK1-deficient mice. Intracutaneous transplantation of cytokine-activated bone marrow-derived macrophages strongly induced hair growth in both wild-type and ASK1-deficient mice. These findings indicate that ASK1 is required for wounding-induced infiltration and activation of macrophages, which play central roles in inflammation-dependent hair regrowth in skin.
ASK1-dependent recruitment and activation of macrophages induce hair growth in skin wounds
N. Osaka,Takumi Takahashi,Shiori Murakami,A. Matsuzawa,T. Noguchi,Takeshi Fujiwara,H. Aburatani,K. Moriyama,K. Takeda,H. Ichijo
Published 2007 in Journal of Cell Biology
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- Publication year
2007
- Venue
Journal of Cell Biology
- Publication date
2007-03-26
- Fields of study
Biology, Medicine
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- Source metadata
Semantic Scholar, PubMed
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