Cited by 228melanin and skin pigmentationMelanoma and MAPK PathwaysGenetic Associations and Epidemiology

A polymorphism in IRF4 affects human pigmentation through a tyrosinase-dependent MITF/TFAP2A pathway

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Praetorius, Christian, Grill, Christine, Stacey, Simon N., Metcalf, Alexander M., Gorkin, David U., Robinson, Kathleen C., Van Otterloo, Eric, Kim, Reuben S.Q. +25 more·2013·Cell

Abstract

Sequence polymorphisms linked to human diseases and phenotypes in genome-wide association studies often affect noncoding regions. A SNP within an intron of the gene encoding Interferon Regulatory Factor 4 (IRF4), a transcription factor with no known role in melanocyte biology, is strongly associated with sensitivity of skin to sun exposure, freckles, blue eyes, and brown hair color. Here, we demonstrate that this SNP lies within an enhancer of IRF4 transcription in melanocytes. The allele associated with this pigmentation phenotype impairs binding of the TFAP2A transcription factor that, together with the melanocyte master regulator MITF, regulates activity of the enhancer. Assays in zebrafish and mice reveal that IRF4 cooperates with MITF to activate expression of Tyrosinase (TYR), an essential enzyme in melanin synthesis. Our findings provide a clear example of a noncoding polymorphism that affects a phenotype by modulating a developmental gene regulatory network.

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Crossref · 10.1016/j.cell.2013.10.022

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  • MITF is the transcription factor known as the 'master regulator of melanogenesis' due to its ability to activate many melanocyte-specific genes.

    “MITF, the transcription factor known as the “master regulator of melanogenesis” due to its ability to activate many melanocyte-specific genes (Praetorius et al., 2013), recruits critical components of the SWI/SNF chromatin remodeling complex (including SMARCA2), to the promoter region of its targets (Vachtenheim et al., 2010).”

    From An Unexpectedly Complex Architecture for Skin Pigmentation in Africans (2017) · cites this paper as Praetorius et al., 2013

  • The intronic IRF4 variant rs12203592 influences skin pigmentation, tanning response, and hair pigmentation, but shows weaker evolutionary signals than the major sweep loci.

    “The intronic IRF4 variant rs12203592 influences skin pigmentation, tanning response, and hair pigmentation, but shows weaker evolutionary signals than the major sweep loci ( Praetorius et al., 2013 ).”

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Authors
Praetorius, C., Grill, C., Stacey, S. N., Metcalf, A. M., Gorkin, D. U., Robinson, K. C., Van Otterloo, E., Kim, R. S. Q., Bergsteinsdottir, K., Ogmundsdottir, M. H., Magnusdottir, E., Mishra, P. J., Davis, S. R., Guo, T., Zaidi, M. R., Helgason, A. S., Sigurdsson, M. I., Meltzer, P. S., Merlino, G., Petit, V., Larue, L., Loftus, S. K., Adams, D. R., Sobhiafshar, U., Emre, N. C. T., Pavan, W. J., Cornell, R., Smith, A. G., McCallion, A. S., Fisher, D. E., Stefansson, K., Sturm, R. A., & Steingrimsson, E.
Affiliations
  • University of Iceland (IS)
  • deCODE Genetics (Iceland) (IS)
  • The University of Queensland (AU)
  • Johns Hopkins University (US)
  • Harvard University (US)
  • National Institutes of Health (US)
  • Institut Curie (FR)
  • Boğaziçi University (TR)
  • University of Iowa (US)
Venue
Cell
Publisher
Elsevier BV
Published
2013-11
Volume
155
Issue
5
Pages
1022-1033
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2034575591
Cited by
228
References
67
Citations by year
2026: 9 · 2025: 18 · 2024: 17 · 2023: 17 · 2022: 22 · 2021: 18 · 2020: 22 · 2019: 15 · 2018: 22 · 2017: 20 · 2016: 13 · 2015: 18 · 2014: 16 · 2013: 1
FWCI
9.28
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • ORBi (University of Liège) (submittedVersion, other-oa)
Funders
  • National Science Foundation
  • Melanoma Research Alliance
  • Dr. Miriam and Sheldon G. Adelson Medical Research Foundation
  • Háskóli Íslands
  • Institut National Du Cancer
  • National Institutes of Health
  • National Cancer Institute (K22CA163799, P01CA163222)
  • National Institute of General Medical Sciences (GM071648, T32GM007814, R01GM071648)
  • National Institute of Neurological Disorders and Stroke (R01NS062972, NS062972)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01AR062547, R01AR043369)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
IRF4, melanogenesis, skin pigmentation, tyrosinase, MITF, TFAP2A, transcriptional regulation, sun sensitivity, freckles, eye color, hair color, gene regulatory networks, zebrafish, mice
MeSH terms
Interferon Regulatory Factor-4, Animals, Base Sequence, Enhancer Elements, Genetic, Humans, Melanocytes, Molecular Sequence Data, Pigmentation, Zebrafish, Signal Transduction, Polymorphism, Single Nucleotide, Transcription Factor AP-2, Interferon Regulatory Factors, Mice

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