Raimondi Sara, Sera Francesco, Gandini Sara, Iodice Simona, Caini Saverio, Maisonneuve Patrick, Fargnoli Maria Concetta
Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy.
Int J Cancer. 2008 Jun 15;122(12):2753-60. doi: 10.1002/ijc.23396.
Melanocortin-1-receptor (MC1R) is one of the major genes that determine skin pigmentation. MC1R variants were suggested to be associated with red hair, fair skin, and an increased risk of melanoma. We performed a meta-analysis on the association between the 9 most studied MC1R variants (p.V60L, p.D84E, p.V92M, p.R142H, p.R151C, p.I155T, p.R160W, p.R163Q and p.D294H) and melanoma and/or red hair, fair skin phenotype. Eleven studies on MC1R and melanoma, and 9 on MC1R and phenotype were included in the analysis. The 7 variants p.D84E, p.R142H, p.R151C, p.I155T, p.R160W, p. R163Q and p.D294H were significantly associated with melanoma development, with ORs (95%CI) ranging from 1.42 (1.09-1.85) for p.R163Q to 2.45 (1.32-4.55) for p.I155T. The MC1R variants p.R160W and p.D294H were associated both with red hair and fair skin, while p.D84E, p.R142H, and p.R151C were strongly associated with red hair only- ORs (95%CI) ranged from 2.99 (1.51-5.91) for p.D84E to 8.10 (5.82-11.28) for p.R151C. No association with melanoma or phenotype was found for p.V60L and p.V92M variants. In conclusion this meta-analysis provided evidence that some MC1R variants are associated both with melanoma and phenotype, while other are only associated with melanoma development. These results suggest that MC1R variants could play a role in melanoma development both via pigmentary and non-pigmentary pathways.
黑皮质素-1受体(MC1R)是决定皮肤色素沉着的主要基因之一。MC1R变异体被认为与红发、白皙皮肤以及黑色素瘤风险增加有关。我们对研究最多的9种MC1R变异体(p.V60L、p.D84E、p.V92M、p.R142H、p.R151C、p.I155T、p.R160W、p.R163Q和p.D294H)与黑色素瘤和/或红发、白皙皮肤表型之间的关联进行了荟萃分析。分析纳入了11项关于MC1R与黑色素瘤的研究以及9项关于MC1R与表型的研究。p.D84E、p.R142H、p.R151C、p.I155T、p.R160W、p.R163Q和p.D294H这7种变异体与黑色素瘤发生显著相关,p.R163Q的比值比(OR)(95%置信区间)为1.42(1.09 - 1.85),p.I155T为2.45(1.32 - 4.55)。MC1R变异体p.R160W和p.D294H与红发和白皙皮肤均有关联,而p.D84E、p.R142H和p.R151C仅与红发密切相关——p.D84E的OR(95%置信区间)为2.99(1.51 - 5.91),p.R151C为8.10(5.82 - 11.28)。未发现p.V60L和p.V92M变异体与黑色素瘤或表型有关联。总之,该荟萃分析提供了证据,表明一些MC1R变异体与黑色素瘤和表型均有关联,而其他变异体仅与黑色素瘤发生有关。这些结果表明,MC1R变异体可能通过色素沉着和非色素沉着途径在黑色素瘤发生中发挥作用。