Evidence map›Paper›PMID 25155575›Full record

ReviewPhotochemistry and photobiology

MC1R, eumelanin and pheomelanin: their role in determining the susceptibility to skin cancer.

Tahseen H Nasti, Laura Timares

Open access · greenAbstract readReview
In one paragraph

Review in Photochemistry and photobiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

109 citing papers in PubMed, 211 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Skin Whitening Creams: Cosmetovigilance.Current pharmaceutical biotechnology · 2026
    Review
  6. Review
  7. Article
  8. Review
  9. medRxiv : the preprint server for health sciences · 2025
    Article
  10. Article
  11. Discovery ofJournal of enzyme inhibition and medicinal chemistry · 2025
    Article
  12. Review
  13. Article
  14. Review
  15. Lipidome Complexity in Physiological and Pathological Skin Pigmentation.International journal of molecular sciences · 2025
    Review
  16. Review
  17. Article
  18. Photocarcinogenesis of the skin: Current status and future trends.The Kaohsiung journal of medical sciences · 2025
    Review
  19. Article
  20. Article

49 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Tahseen H NastiThe Department of Dermatology, University of Alabama at Birmingham School of Medicine, Birmingham, AL.
Laura Timares
University of Alabama at Birmingham · US

Funding

UAB Skin Diseases Research CenterP30AR050948 · NIAMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ELMETS, CRAIG A · 2004 to 2013
$5.5M
Bid Regulation of Cutaneous Photodamage ResponsesR21AR055252 · NIAMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI TIMARES, LAURA · 2009 to 2010
$360k
NIAMS NIH HHS P30 AR050948NIAMS NIH HHS R21 AR055252
6 · The paper itself

Abstract

Skin pigmentation is due to the accumulation of two types of melanin granules in the keratinocytes. Besides being the most potent blocker of ultraviolet radiation, the role of melanin in photoprotection is complex. This is because one type of melanin called eumelanin is UV absorbent, whereas the other, pheomelanin, is photounstable and may even promote carcinogenesis. Skin hyperpigmentation may be caused by stress or exposure to sunlight, which stimulates the release of α-melanocyte stimulating hormone (α-MSH) from damaged keratinocytes. Melanocortin 1 receptor (MC1R) is a key signaling molecule on melanocytes that responds to α-MSH by inducing expression of enzymes responsible for eumelanin synthesis. Persons with red hair have mutations in the MC1R causing its inactivation; this leads to a paucity of eumelanin production and makes red-heads more susceptible to skin cancer. Apart from its effects on melanin production, the α-MSH/MC1R signaling is also a potent anti-inflammatory pathway and has been shown to promote antimelanoma immunity. This review will focus on the role of MC1R in terms of its regulation of melanogenesis and influence on the immune system with respect to skin cancer susceptibility.

Indexed as

HumansMelaninsNeoplasms, Radiation-InducedReceptor, Melanocortin, Type 1Skin NeoplasmseumelaninMelaninspheomelaninReceptor, Melanocortin, Type 1

Identifiers

PMID25155575
PMCPMC4299862
OpenAlexW2034186518

What OpenQuestion holds

Textmetadata
LicenceTDM
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.