Evidence map›Paper›PMID 23103111›Full record

ArticleJournal of dermatological science2013

Report of a novel OCA2 gene mutation and an investigation of OCA2 variants on melanoma risk in a familial melanoma pedigree.

Jason E Hawkes, Pamela B Cassidy, Prashiela Manga, Raymond E Boissy, David Goldgar, Lisa Cannon-Albright, Scott R Florell, Sancy A Leachman

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in Journal of dermatological science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

21 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Scalable and accurate rare-variant association tests for whole genome sequencing time-to-event analysis in large biobanks.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Overview of familial syndromes with increased skin malignancies.Archives of dermatological research · 2023
    Review
  7. Review
  8. Article
  9. Measurement of Melanin Metabolism in Live Cells by [U-The Journal of investigative dermatology · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
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  19. Article
  20. 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

8 authors at 4 institutions in 1 country.

Jason E HawkesHuntsman Cancer Institute and Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, UT, USA.
Pamela B Cassidy
Prashiela Manga
Raymond E Boissy
David Goldgar
Lisa Cannon-Albright
Scott R Florell
Sancy A Leachman
Huntsman Cancer Institute · USUniversity of Utah · USNew York University · USUniversity of Cincinnati · US

Funding

UTAH REGIONAL CANCER CENTERP30CA042014 · NCI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Jared P Rutter · 1986 to 2026
$72.6M
IDENTIFICATION OF MELANOMA PREDISPOSITION LOCIR01CA102422 · NCI · UNIVERSITY OF UTAH · PI ALBRIGHT, LISA CANNON · 2003 to 2007
$2.5M
Impact of MC1R Functional Variants on the DNA Damage Response of Human MelanocyteR01ES017561 · NIEHS · UNIVERSITY OF CINCINNATI · PI ABDEL-MALEK, ZALFA, LEACHMAN, SANCY ANN · 2009 to 2013
$1.6M
NCI NIH HHS 2P30CA042014-17NCI NIH HHS 2P30CA042014-21NCI NIH HHS P30 CA042014NCI NIH HHS R01 CA102422NIEHS NIH HHS R01 ES017561
6 · The paper itself

Abstract

backgroundOculocutaneous albinism type 2 (OCA2) is caused by mutations of the OCA2 gene. Individuals affected by OCA2 as well as other types of albinism are at a significantly increased risk for sun-induced skin-cancers, including malignant melanoma (MM).

objectiveTo identify the molecular etiology of oculocutaneous albinism in a previously uncharacterized melanoma pedigree and to investigate the relationship between two OCA2 variants and melanoma predisposition in this pedigree.

methodsDNA and RNA were isolated from the peripheral blood of seven patients in a familial melanoma pedigree. Electron microscopy was performed on the individual with clinical oculocutaneous albinism. OCA2, TYRP1, MC1R, CDKN2A/p16, CDKN2A/p19ARF, and CDK4 genes were sequenced in affected individuals. The relationship between OCA2 variants and melanoma was assessed using a pedigree likelihood-based method.

resultsThe proband was determined to be an OCA2 compound heterozygous mutation carrier with a previously reported conservative missense mutation (V443I) and a novel non-conservative missense mutation (L734R). The pedigree contained individuals diagnosed with both cutaneous and iris melanoma. Based on co-segregation analysis, the odds of these OCA2 variants being high penetrance loci for melanoma was: 1.3-to-1 if we include the iris melanoma as affected and 6.5-to-1 if we only consider cutaneous melanoma as affected.

conclusionThe discovery of this novel OCA2 variant adds to the body of evidence on the detrimental effects of OCA2 gene mutations on pigmentation, supports existing GWAS data on the relevance of the OCA2 gene in melanoma predisposition, and may ultimately assist in the development of targeted molecular therapies in the treatment of OCA and melanoma.

Indexed as

Albinism, OculocutaneousDNA Mutational AnalysisFemaleGenetic Predisposition to DiseaseHeterozygoteHumansMaleMelanomaMembrane Transport ProteinsMiddle AgedMutation, MissensePedigreeSkin NeoplasmsMembrane Transport ProteinsOCA2 protein, human

Identifiers

PMID23103111
PMCPMC4775076
OpenAlexW2077767040

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.