MC1R variation and melanoma risk in the Swedish population in relation to clinical and pathological parameters

Veronica Hoiom, Rainer Tuominen, Max Kaller, Diana Linden, Afshin Ahmadian, Eva Mansson-Brahme, Suzanne Egyhazi, Klas Sjöberg, Joakim Lundeberg, Johan Hansson

    Research output: Contribution to journalArticlepeer-review

    33 Citations (SciVal)

    Abstract

    The genetic background of cutaneous malignant melanoma (CMM) includes both germ line aberrations in high-penetrance genes, like CDKN2A, and allelic variation in low-penetrance genes like the melanocortin-1 receptor gene, MC1R. Red-hair colour associated MC1R alleles (RHC) have been associated with red hair, fair skin and risk of CMM. We investigated MC1R and CDKN2A variation in relation to phenotype, clinical factors and CMM risk in the Swedish population. The study cohort consisted of sporadic primary melanoma patients, familial melanoma patients and a control group. An allele-dose dependent increase in melanoma risk for carriers of variant MC1R alleles (after adjusting for phenotype), with an elevated risk among familial CMM patients, was observed. This elevated risk was found to be significantly associated with an increased frequency of dysplastic nevi (DN) among familial patients compared to sporadic patients. MC1R variation was found to be less frequent among acral lentiginous melanomas (ALM) and dependent on tumour localisation. No association was found between CDKN2A gene variants and general melanoma risk. Two new variants in the POMC gene were identified in red haired individuals without RHC alleles.
    Original languageEnglish
    Pages (from-to)196-204
    JournalPigment Cell & Melanoma Research
    Volume22
    Issue number2
    DOIs
    Publication statusPublished - 2009

    Subject classification (UKÄ)

    • Cancer and Oncology

    Keywords

    • phenotype
    • association
    • melanoma
    • MC1R
    • dysplastic nevi

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