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Cited by 221Hair Growth and DisordersProstate Cancer Treatment and ResearchSperm and Testicular Function

The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.

Molecular basis of androgenetic alopecia: From androgen to paracrine mediators through dermal papilla

Inui, Shigeki, Itami, Satoshi·2011·Journal of Dermatological Science
DOI 10.1016/j.jdermsci.2010.10.015
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Abstract

Androgenetic alopecia (AGA) is characterized by vellus transformation of scalp hairs, corresponding to hair follicle miniaturization during repeated hair cycles with shortened anagen phase. This phenomenon is mediated mainly by androgen. Then, the multi-step molecular pathway of androgen can be involved in the pathogenesis of AGA. The expression of type II 5α-reductase is higher in dermal papilla cells from AGA and beard than those from other sites. On the other hand, type I 5α-reductase expression is relatively low. Next, hormone binding assays and RT-PCR demonstrated that androgen receptor (AR) expression is significantly higher in bald dermal papilla cells than non-bald cells. Additionally, AR coactivator Hic-5/ARA55 is highly expressed in dermal papilla cells of hair follicles from androgen-sensitive sites such as AGA and beard. Collectively, the enhanced expression of type II 5α-reductase, AR and Hic-5/ARA55 can upregulate sensitivity to androgen of dermal papilla cells in AGA. Furthermore, in the coculture of AR-overexpressing human dermal papilla cells from AGA and normal human keratinocytes, R1881 suppresses keratinocyte growth through androgen-inducible TGF-β1, indicating that TGF-β1 is one of the key players in pathogenesis of AGA. TGF-β2 and DKK-1 has been reported to be androgen-induced suppressor of growth of follicular epithelial cells. We expect that more pathogenic mediators will be identified in the future, enabling easier understanding of AGA pathogenesis and providing new therapeutic targets from aspect of andrology.

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Metadata

Authors
Inui, S., & Itami, S.
Affiliations
The University of Osaka (JP)
Corresponding author
Inui, Shigeki
ORCID
Inui, Shigeki
Venue
Journal of Dermatological Science
Publisher
Elsevier BV
Published
2011-01
Volume
61
Issue
1
Pages
1-6
ISSN
0923-1811 (ISSN-L)
DOI
10.1016/j.jdermsci.2010.10.015
OpenAlex
W2077477797
Cited by
221
References
50
Citations by year
2026: 28 · 2025: 27 · 2024: 16 · 2023: 16 · 2022: 16 · 2021: 9 · 2020: 19 · 2019: 9 · 2018: 13 · 2017: 15 · 2016: 7 · 2015: 10 · 2014: 6 · 2013: 14 · 2012: 11
FWCI
13.14
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Journal of Dermatological Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Medical Center, University of Rochester
  • Japan Society for the Promotion of Science (23592647, 23591644)
Topics
  • Health Sciences › Medicine › Dermatology › Hair Growth and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Prostate Cancer Treatment and Research
  • Health Sciences › Medicine › Reproductive Medicine › Sperm and Testicular Function
Keywords
androgenetic alopecia, dermal papilla, androgen receptor, TGF-β1, DKK1, paracrine signaling, hair follicle miniaturization, vellus hair, keratinocytes, androgen sensitivity
MeSH terms
Alopecia, Androgens, Humans, Male, Testosterone, Signal Transduction, Genetic Predisposition to Disease

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