Cited by 253Hair Growth and DisordersHedgehog Signaling Pathway Studiesdental development and anomalies

Induction of the hair growth phase in postnatal mice by localized transient expression of Sonic hedgehog

Open access
Sato, Noboru, Leopold, Philip L., Crystal, Ronald G.·1999·Journal of Clinical Investigation

Abstract

Hair follicles form in prenatal skin and mature in the postnatal period, establishing a growth cycle in 3 phases: telogen (resting), anagen (growth), and catagen (regression). Based on the knowledge that Sonic hedgehog (Shh) expression is necessary for the embryonic development of hair follicles, and that anagen in the postnatal cycling follicle has morphologic similarities to the epithelial invagination process in embryonic skin, we hypothesized that localized, but transient, enhanced expression of the Shh gene in postnatal skin would accelerate initiation of anagen in the hair follicle cycle, with concomitant accelerated hair growth. To assess this concept, an E1(-) adenovirus vector, AdShh, was used to transfer the murine Shh cDNA to skin of postnatal day 19 C57BL/6 mice. The treated skin showed increased mRNA expression of Shh, Patched (the Shh receptor), and Gli1 (a transcription factor in the Shh pathway). In mice receiving AdShh, but not in controls, acceleration into anagen was evident, since hair follicle size and melanogenesis increased and the hair-specific keratin ghHb-1 and the melanin synthesis-related tyrosinase mRNAs accumulated. Finally, C57BL/6 mice showed marked acceleration of the onset of new hair growth in the region of AdShh administration to skin 2 weeks after treatment, but not in control vector-treated or untreated areas. After 6 months, AdShh-treated skin showed normal hair and normal skin morphology. Together, these observations are consistent with the concept that upregulation of Shh activity in postnatal skin functions as a biologic switch that induces resting hair follicles to enter anagen with consequent hair growth.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1172/jci7691

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Sato, N., Leopold, P. L., & Crystal, R. G.
Affiliations
NewYork–Presbyterian Hospital (US)
Corresponding author
Crystal, Ronald G.
Venue
Journal of Clinical Investigation
Published
1999-10-01
Volume
104
Issue
7
Pages
855-864
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2033414562
Cited by
253
References
55
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 8 · 2022: 5 · 2021: 5 · 2020: 6 · 2019: 7 · 2018: 6 · 2017: 12 · 2016: 6 · 2015: 2 · 2014: 9 · 2013: 10 · 2012: 10
FWCI
19.14
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Harvard University
  • Johns Hopkins University
Topics
  • Health Sciences › Medicine › Urology › Hair Growth and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Hedgehog Signaling Pathway Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › dental development and anomalies
Keywords
Sonic hedgehog, hair follicle, anagen induction, hair cycle, adenoviral gene transfer, Patched receptor, Gli1, melanogenesis, tyrosinase, epithelial invagination, hair follicle development
MeSH terms
Adenoviridae, Aging, Animals, Epithelial Cells, Genetic Vectors, Hair, Mice, Inbred C57BL, Mice, Transgenic, Proteins, Skin, Trans-Activators, Sequence Deletion, Mice, Knockout, Gene Expression Regulation, Developmental, Hair Follicle, Mice, Hedgehog Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review