Evidence map›Paper›PMID 37212043›Full record

ArticleEMBO reports2023

mTORC1 activity negatively regulates human hair follicle growth and pigmentation.

Takahiro Suzuki, Jérémy Chéret, Fernanda Dinelli Scala, Aysun Akhundlu, Jennifer Gherardini, Dana-Lee Demetrius, James D B O'Sullivan, Gorana Kuka Epstein, Alan J Bauman, Constantinos Demetriades and 1 more

Open access · hybridAbstract read
In one paragraph

Article in EMBO reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
9.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Gray Hair: From Preventive to Treatment.Clinical, cosmetic and investigational dermatology · 2025
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 2 countries.

Takahiro Suzuki *Dr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID 0000-0002-6012-0229
Jérémy Chéret *Dr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID 0000-0003-1901-0551
Fernanda Dinelli ScalaDr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.
Aysun AkhundluDr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.
Jennifer GherardiniDr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID 0000-0002-4811-8580
Dana-Lee DemetriusDr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.
James D B O'SullivanDr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.
Gorana Kuka EpsteinFoundation for Hair Restoration, Miami, FL, USA.
Alan J BaumanBauman Medical Group, Boca Raton, FL, USA.ORCID 0000-0001-6662-1270
Constantinos DemetriadesMax Planck Institute for Biology of Ageing, Cologne, Germany.ORCID 0000-0001-7813-7726
Ralf PausDr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID 0000-0002-3492-9358
University of Miami · USLynn University · USMiami Foundation · USUniversity of Cologne · DE

Funding

Frost Endowed Scholarship
6 · The paper itself

Abstract

Dysregulation of the activity of the mechanistic target of rapamycin complex 1 (mTORC1) is commonly linked to aging, cancer, and genetic disorders such as tuberous sclerosis (TS), a rare neurodevelopmental multisystemic disease characterized by benign tumors, seizures, and intellectual disability. Although patches of white hair on the scalp (poliosis) are considered as early signs of TS, the underlying molecular mechanisms and potential involvement of mTORC1 in hair depigmentation remain unclear. Here, we have used healthy, organ-cultured human scalp hair follicles (HFs) to interrogate the role of mTORC1 in a prototypic human (mini-)organ. Gray/white HFs exhibit high mTORC1 activity, while mTORC1 inhibition by rapamycin stimulated HF growth and pigmentation, even in gray/white HFs that still contained some surviving melanocytes. Mechanistically, this occurred via increased intrafollicular production of the melanotropic hormone, α-MSH. In contrast, knockdown of intrafollicular TSC2, a negative regulator of mTORC1, significantly reduced HF pigmentation. Our findings introduce mTORC1 activity as an important negative regulator of human HF growth and pigmentation and suggest that pharmacological mTORC1 inhibition could become a novel strategy in the management of hair loss and depigmentation disorders.

Indexed as

Hair FolliclePigmentationHair ColorHumansMechanistic Target of Rapamycin Complex 1MelanocytesMechanistic Target of Rapamycin Complex 1alpha-MSH/MC1RmelanocytemTORC1rapamycintuberous sclerosis

Identifiers

PMID37212043
PMCPMC10328083
OpenAlexW4377221410

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.