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1. Erratum: A SUMOylation-defective MITF germline mutation predisposes to melanoma and renal carcinoma (Nature (2011) 480:94-98 doi:10.1038/nature10539)

Author

Bertolotto, C., Lesueur, F., Giuliano, S., Strub, T., De Lichy, M., Bille, K., Dessen, P., D'Hayer, B., Mohamdi, H., Remenieras, A., Maubec, E., De La Fouchardiere, A., Molinie, V., Vabres, P., Dalle, S., Poulalhon, N., Martin-Denavit, T., Thomas, L., Andry-Benzaquen, P., Dupin, N., Boitier, F., Rossi, A., Perrot, J. -L., Labeille, B., Robert, C., Escudier, B., Caron, O., Brugieres, L., Saule, S., Gardie, B., Gad, S., Richard, S., Couturier, J., Teh, B. T., Ghiorzo, P., Pastorino, L., Puig, S., Badenas, C., Olsson, H., Ingvar, C., Rouleau, E., Lidereau, R., Bahadoran, P., Vielh, P., Corda, E., Blanche, H., Zelenika, D., Galan, P., Chaudru, V., Lenoir, G. M., Lathrop, M., Davidson, I., Avril, M. -F., Demenais, F., Ballotti, R., and Bressac-De Paillerets, B.

Published
2016

2. Genome-wide association study identifies novel loci predisposing to cutaneous melanoma†

Author

Amos, Ci, Wang, Le, Lee, Je, Gershenwald, Je, Chen, Wv, Fang, S, Kosoy, R, Zhang, M, Qureshi, Aa, Vattathil, S, Schacherer, Cw, Gardner, Jm, Wang, Y, Bishop, Dt, Barrett, Jh, Macgregor, S, Hayward, Nk, Martin, Ng, Duffy, Dl, Mann, Gj, Cust, A, Hopper, J, Brown, Km, Grimm, Ea, Xu, Y, Han, Y, Jing, K, Mchugh, C, Laurie, Cc, Doheny, Kf, Pugh, Ew, Seldin, Mf, Han, J, Wei, Q, Genomel, Investigators, Mega Investigators, Q., AMFS Investigators Mann GJ, Hopper, Jl, Aitken, Jf, Armstrong, Bk, Giles, Gg, Kefford, Rf, Cust, Ae, Jenkins, Ma, Schmid, H, Aguilera, P, Badenas, C, Carrera, C, Cuellar, F, Gabriel, D, Martinez, E, Gonzalez, M, Iglesias, P, Malvehy, J, Marti Laborda, R, Mila, M, Ogbah, Z, Butille, Ja, Puig, S, Alós, L, Arance, A, Arguís, P, Campo, A, Castel, T, Conill, C, Palou, J, Rull, R, Sánchez, M, Vidal Sicart, S, Vilalta, A, Vilella, R, Montgomery, Gw, Whiteman, Dc, Whiteman, D, Webb, P, Green, A, Parsons, P, Purdie, D, Hayward, N, Landi, Mt, Calista, D, Landi, G, Minghetti, P, Arcangeli, F, Bertazzi, Pa, Bianchi, Giovanna, Ghiorzo, Paola, Pastorino, Lorenza, Bruno, William, Battistuzzi, Linda, Gargiulo, Sara, Nasti, Sabina, Gliori, S, Origone, Paola, Andreotti, V, Queirolo, P, Mackie, R, Lang, J, Bishop, Ja, Affleck, P, Harrison, J, Iles, Mm, Randerson Moor, J, Harland, M, Taylor, Jc, Whittaker, L, Kukalizch, K, Leake, S, Karpavicius, B, Haynes, S, Mack, T, Chan, M, Taylor, Y, Davies, J, King, P, Gruis, Na, van Nieuwpoort FA, Out, C, van der Drift, C, Bergman, W, Kukutsch, N, Bavinck, Jn, Bakker, B, van der Stoep, N, ter Huurne, J, van der Rhee, H, Bekkenk, M, Snels, D, van Praag, M, Brochez, L, Gerritsen, R, Crijns, M, Vasen, H, Olsson, H, Ingvar, C, Jönsson, G, Borg, Å, Måsbäck, A, Lundgren, L, Baeckenhorn, K, Nielsen, K, Casslén, As, Helsing, P, Andresen, Pa, Rootwelt, H, Akslen, La, Molven, A, Avril, Mf, Bressac de Paillerets, B, Chaudru, V, Chateigner, N, Corda, E, Jeannin, P, Lesueur, F, de Lichy, M, Maubec, E, Mohamdi, H, Demenais, F, Andry Benzaquen, P, Bachollet, B, Bérard, F, Berthet, P, Boitier, F, Bonadona, V, Bonafé, Jl, Bonnetblanc, Jm, Cambazard, F, Caron, O, Caux, F, Chevrant Breton, J, Chompret, A, Dalle, S, Demange, L, Dereure, O, Doré, Mx, Doutre, Ms, Dugast, C, Faivre, L, Grange, F, Humbert, P, Joly, P, Kerob, D, Lasset, C, Leccia, Mt, Lenoir, G, Leroux, D, Levang, J, Lipsker, D, Mansard, S, Martin, L, Martin Denavit, T, Mateus, C, Michel, Jl, Morel, P, Olivier Faivre, L, Perrot, Jl, Robert, C, Ronger Savle, S, Sassolas, B, Souteyrand, P, Stoppa Lyonnet, D, Thomas, L, Vabres, P, Wierzbicka, E, Elder, D, Kanetsky, P, Knorr, J, Ming, M, Mitra, N, Ruffin, A, Van Belle, P, Debniak, T, Lubiński, J, Mirecka, A, Ertmański, S, Novakovic, S, Hocevar, M, Peric, B, Cerkovnik, P, Höiom, V, Hansson, J, Holland, Ea, Azizi, E, Galore Haskel, G, Friedman, E, Baron Epel, O, Scope, A, Pavlotsky, F, Yakobson, E, Cohen Manheim, I, Laitman, Y, Milgrom, R, Shimoni, I, and Kozlovaa, E.

Subjects
Genetic Markers, Candidate gene, Skin Neoplasms, Ubiquitin-Protein Ligases, Locus (genetics), Single-nucleotide polymorphism, Genome-wide association study, Biology, Polymorphism, Single Nucleotide, 03 medical and health sciences, 0302 clinical medicine, Meta-Analysis as Topic, Genetics, Eye color, Guanine Nucleotide Exchange Factors, Humans, SNP, Genetic Predisposition to Disease, Melanoma, Molecular Biology, Genetics (clinical), 030304 developmental biology, 0303 health sciences, Pigmentation, Association Studies Articles, General Medicine, 3. Good health, Chromosomes, Human, Pair 1, Genetic Loci, Genetic marker, Case-Control Studies, 030220 oncology & carcinogenesis, Cutaneous melanoma, Genome-Wide Association Study
Abstract

We performed a multistage genome-wide association study of melanoma. In a discovery cohort of 1804 melanoma cases and 1026 controls, we identified loci at chromosomes 15q13.1 (HERC2/OCA2 region) and 16q24.3 (MC1R) regions that reached genome-wide significance within this study and also found strong evidence for genetic effects on susceptibility to melanoma from markers on chromosome 9p21.3 in the p16/ARF region and on chromosome 1q21.3 (ARNT/LASS2/ANXA9 region). The most significant single-nucleotide polymorphisms (SNPs) in the 15q13.1 locus (rs1129038 and rs12913832) lie within a genomic region that has profound effects on eye and skin color; notably, 50% of variability in eye color is associated with variation in the SNP rs12913832. Because eye and skin colors vary across European populations, we further evaluated the associations of the significant SNPs after carefully adjusting for European substructure. We also evaluated the top 10 most significant SNPs by using data from three other genome-wide scans. Additional in silico data provided replication of the findings from the most significant region on chromosome 1q21.3 rs7412746 (P = 6 × 10(-10)). Together, these data identified several candidate genes for additional studies to identify causal variants predisposing to increased risk for developing melanoma.

Published
2011

3. The contribution of large genomic deletions at the CDKN2A locus to the burden of familial melanoma

Author

Lesueur, F., de Lichy, M., Barrois, M., Durand, Geoffroy, Bombled, J., Avril, M-F, Chompret, A., Boitier, F., Group French Familial Melanoma, Study, Bressac- de Paillerets, Brigitte, Baccard, M., Bachollet, B., Berthet, P., Bonadona, Valérie, Bonnetblanc, Jean-Marie, Lenoir, G.M., Service de génétique, Institut Gustave Roussy (IGR), Variabilité Génétique et Maladies Humaines, Institut Universitaire d'Hématologie (IUH), Université Paris Diderot - Paris 7 (UPD7)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Biostatistiques santé, Département biostatistiques et modélisation pour la santé et l'environnement [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Equipe de Recherche Médicale Appliquée (ERMA), Université de Limoges (UNILIM)-CHU Limoges-Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST FR CNRS 3503), and Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST FR CNRS 3503)-Université de Limoges (UNILIM)-CHU Limoges

Subjects
[SDV.OT]Life Sciences [q-bio]/Other [q-bio.OT]
Abstract

ERMA

Published
2008

4. Pathway-Based Analysis of a Melanoma Genome-Wide Association Study: Analysis of Genes Related to Tumour-Immunosuppression

Author

Schoof, N, Iles, Mm, Bishop, Dt, Newton Bishop JA, Barrett, Jh, Mann, Gj, Hopper, Jl, Aitken, Jf, Armstrong, Bk, Giles, Gg, Kefford, Rf, Cust, A, Jenkins, M, Aguilera, P, Badenas, C, Carrera, C, Cuellar, F, Gabriel, D, Martinez, E, Gonzalez, M, Iglesias, P, Malvehy, J, Marti Laborda, R, Mila, M, Ogbah, Z, Butille, Ja, Puig, S, Alós, L, Arance, A, Arguís, P, Campo, A, Castel, T, Conill, C, Palou, J, Rull, R, Sánchez, M, Vidal Sicart, S, Vilalta, A, Vilella, R, Martin, Ng, Montgomery, Gw, Duffy, D, Whiteman, D, Macgregor, S, Hayward, Nk, Webb, P, Parsons, P, Purdie, D, Hayward, N, Landi, Mt, Calista, D, Landi, G, Minghetti, P, Arcangeli, F, Bertazzi, Pa, Bianchi, Giovanna, Ghiorzo, Paola, Pastorino, Lorenza, Bruno, William, Battistuzzi, Linda, Gargiulo, Sara, Nasti, Sabina, Gliori, S, Origone, Paola, Queirolo, P, Mackie, R, Lang, J, Bishop, Ja, Affleck, P, Harrison, J, Randerson Moor, J, Harland, M, Taylor, Jc, Whittaker, L, Kukalizch, K, Leake, S, Karpavicius, B, Haynes, S, Mack, T, Chan, M, Taylor, Y, Davies, J, King, P, Gruis, Na, van Nieuwpoort FA, Out, C, van der Drift, C, Bergman, W, Kukutsch, N, Bavinck, Jn, Bakker, B, van der Stoep, N, ter Huurne, J, van der Rhee, H, Bekkenk, M, Snels, D, van Praag, M, Brochez, L, Gerritsen, R, Crijns, M, Vasen, H, Olsson, H, Ingvar, C, Jönsson, G, Borg, Å, Måsbäck, A, Lundgren, L, Baeckenhorn, K, Nielsen, K, Casslén, As, Helsing, P, Andresen, Pa, Rootwelt, H, Akslen, La, Molven, A, Avril, Mf, Bressac de Paillerets, B, Chaudru, V, Chateigner, N, Corda, E, Jeannin, P, Lesueur, F, de Lichy, M, Maubec, E, Mohamdi, H, Demenais, F, Andry Benzaquen, P, Bachollet, B, Bérard, F, Berthet, P, Boitier, F, Bonadona, V, Bonafé, Jl, Bonnetblanc, Jm, Cambazard, F, Caron, O, Caux, F, Chevrant Breton, J, Chompret, A, Dalle, S, Demange, L, Dereure, O, Doré, Mx, Doutre, Ms, Dugast, C, Faivre, L, Grange, F, Humbert, P, Joly, P, Kerob, D, Lasset, C, Leccia, Mt, Lenoir, G, Leroux, D, Levang, J, Lipsker, D, Mansard, S, Martin, L, Martin Denavit, T, Mateus, C, Michel, Jl, Morel, P, Olivier Faivre, L, Perrot, Jl, Robert, C, Ronger Savle, S, Sassolas, B, Souteyrand, P, Stoppa Lyonnet, D, Thomas, L, Vabres, P, Wierzbicka, E, Elder, D, Kanetsky, P, Knorr, J, Ming, M, Mitra, N, Ruffin, A, Van Belle, P, Dębniak, T, Lubiński, J, Mirecka, A, Ertmański, S, Novakovic, S, Hocevar, M, Peric, B, Cerkovnik, P, Höiom, V, Hansson, J, Schmid, H, Holland, Ea, Azizi, E, Galore Haskel, G, Friedman, E, Baron Epel, O, Scope, A, Pavlotsky, F, Yakobson, E, Cohen Manheim, I, Laitman, Y, Milgrom, R, Shimoni, I, Kozlovaa, E., Biostatistiques santé, Département biostatistiques et modélisation pour la santé et l'environnement [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Martí Laborda, Rosa Ma., and Universitat de Barcelona

Subjects
Melanomas, Skin Neoplasms, Epidemiology, medicine.medical_treatment, [SDV]Life Sciences [q-bio], lcsh:Medicine, Genome-wide association study, 0302 clinical medicine, Polymorphism (computer science), Genetics of the Immune System, lcsh:Science, Melanoma, Genetics, 0303 health sciences, Multidisciplinary, Cancer Risk Factors, Statistics, Immunosuppression, Genomics, Oncology, Genetic Epidemiology, 030220 oncology & carcinogenesis, Medicine, Research Article, medicine.medical_specialty, Immunology, Genetic Causes of Cancer, Malignant Skin Neoplasms, Single-nucleotide polymorphism, Dermatology, Biostatistics, Biology, Polymorphism, Single Nucleotide, 03 medical and health sciences, Genome Analysis Tools, Molecular genetics, Genome-Wide Association Studies, medicine, Humans, SNP, Genetic Predisposition to Disease, Statistical Methods, Gene, 030304 developmental biology, Immunosuppression Therapy, Evolutionary Biology, Population Biology, Immunosupressió, lcsh:R, Computational Biology, Human Genetics, medicine.disease, Genetic Polymorphism, Clinical Immunology, lcsh:Q, Population Genetics, Mathematics, Genome-Wide Association Study
Abstract

Systemic immunosuppression is a risk factor for melanoma, and sunburn-induced immunosuppression is thought to be causal. Genes in immunosuppression pathways are therefore candidate melanoma-susceptibility genes. If variants within these genes individually have a small effect on disease risk, the association may be undetected in genome-wide association (GWA) studies due to low power to reach a high significance level. Pathway-based approaches have been suggested as a method of incorporating a priori knowledge into the analysis of GWA studies. In this study, the association of 1113 single nucleotide polymorphisms (SNPs) in 43 genes (39 genomic regions) related to immunosuppression have been analysed using a gene-set approach in 1539 melanoma cases and 3917 controls from the GenoMEL consortium GWA study. The association between melanoma susceptibility and the whole set of tumour-immunosuppression genes, and also predefined functional subgroups of genes, was considered. The analysis was based on a measure formed by summing the evidence from the most significant SNP in each gene, and significance was evaluated empirically by case-control label permutation. An association was found between melanoma and the complete set of genes (pemp = 0.002), as well as the subgroups related to the generation of tolerogenic dendritic cells (pemp = 0.006) and secretion of suppressive factors (pemp = 0.0004), thus providing preliminary evidence of involvement of tumour-immunosuppression gene polymorphisms in melanoma susceptibility. The analysis was repeated on a second phase of the GenoMEL study, which showed no evidence of an association. As one of the first attempts to replicate a pathway-level association, our results suggest that low power and heterogeneity may present challenges.

5. Corrigendum: A SUMOylation-defective MITF germline mutation predisposes to melanoma and renal carcinoma.

Author

Bertolotto C, Lesueur F, Giuliano S, Strub T, de Lichy M, Bille K, Dessen P, d'Hayer B, Mohamdi H, Remenieras A, Maubec E, de la Fouchardière A, Molinié V, Vabres P, Dalle S, Poulalhon N, Martin-Denavit T, Thomas L, Andry-Benzaquen P, Dupin N, Boitier F, Rossi A, Perrot JL, Labeille B, Robert C, Escudier B, Caron O, Brugières L, Saule S, Gardie B, Gad S, Richard S, Couturier J, Teh BT, Ghiorzo P, Pastorino L, Puig S, Badenas C, Olsson H, Ingvar C, Rouleau E, Lidereau R, Bahadoran P, Vielh P, Corda E, Blanché H, Zelenika D, Galan P, Chaudru V, Lenoir GM, Lathrop M, Davidson I, Avril MF, Demenais F, Ballotti R, and Bressac-de Paillerets B

Published
2016
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6. A SUMOylation-defective MITF germline mutation predisposes to melanoma and renal carcinoma.

Author

Bertolotto C, Lesueur F, Giuliano S, Strub T, de Lichy M, Bille K, Dessen P, d'Hayer B, Mohamdi H, Remenieras A, Maubec E, de la Fouchardière A, Molinié V, Vabres P, Dalle S, Poulalhon N, Martin-Denavit T, Thomas L, Andry-Benzaquen P, Dupin N, Boitier F, Rossi A, Perrot JL, Labeille B, Robert C, Escudier B, Caron O, Brugières L, Saule S, Gardie B, Gad S, Richard S, Couturier J, Teh BT, Ghiorzo P, Pastorino L, Puig S, Badenas C, Olsson H, Ingvar C, Rouleau E, Lidereau R, Bahadoran P, Vielh P, Corda E, Blanché H, Zelenika D, Galan P, Aubin F, Bachollet B, Becuwe C, Berthet P, Bignon YJ, Bonadona V, Bonafe JL, Bonnet-Dupeyron MN, Cambazard F, Chevrant-Breton J, Coupier I, Dalac S, Demange L, d'Incan M, Dugast C, Faivre L, Vincent-Fétita L, Gauthier-Villars M, Gilbert B, Grange F, Grob JJ, Humbert P, Janin N, Joly P, Kerob D, Lasset C, Leroux D, Levang J, Limacher JM, Livideanu C, Longy M, Lortholary A, Stoppa-Lyonnet D, Mansard S, Mansuy L, Marrou K, Matéus C, Maugard C, Meyer N, Nogues C, Souteyrand P, Venat-Bouvet L, Zattara H, Chaudru V, Lenoir GM, Lathrop M, Davidson I, Avril MF, Demenais F, Ballotti R, and Bressac-de Paillerets B

Subjects
Cell Movement genetics, Gene Frequency, Humans, Neoplasm Invasiveness genetics, Sumoylation, Carcinoma, Renal Cell genetics, Genetic Predisposition to Disease, Germ-Line Mutation, Melanoma genetics, Microphthalmia-Associated Transcription Factor genetics
Abstract

So far, no common environmental and/or phenotypic factor has been associated with melanoma and renal cell carcinoma (RCC). The known risk factors for melanoma include sun exposure, pigmentation and nevus phenotypes; risk factors associated with RCC include smoking, obesity and hypertension. A recent study of coexisting melanoma and RCC in the same patients supports a genetic predisposition underlying the association between these two cancers. The microphthalmia-associated transcription factor (MITF) has been proposed to act as a melanoma oncogene; it also stimulates the transcription of hypoxia inducible factor (HIF1A), the pathway of which is targeted by kidney cancer susceptibility genes. We therefore proposed that MITF might have a role in conferring a genetic predisposition to co-occurring melanoma and RCC. Here we identify a germline missense substitution in MITF (Mi-E318K) that occurred at a significantly higher frequency in genetically enriched patients affected with melanoma, RCC or both cancers, when compared with controls. Overall, Mi-E318K carriers had a higher than fivefold increased risk of developing melanoma, RCC or both cancers. Codon 318 is located in a small-ubiquitin-like modifier (SUMO) consensus site (ΨKXE) and Mi-E318K severely impaired SUMOylation of MITF. Mi-E318K enhanced MITF protein binding to the HIF1A promoter and increased its transcriptional activity compared to wild-type MITF. Further, we observed a global increase in Mi-E318K-occupied loci. In an RCC cell line, gene expression profiling identified a Mi-E318K signature related to cell growth, proliferation and inflammation. Lastly, the mutant protein enhanced melanocytic and renal cell clonogenicity, migration and invasion, consistent with a gain-of-function role in tumorigenesis. Our data provide insights into the link between SUMOylation, transcription and cancer.

Published
2011
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7. The contribution of large genomic deletions at the CDKN2A locus to the burden of familial melanoma.

Author

Lesueur F, de Lichy M, Barrois M, Durand G, Bombled J, Avril MF, Chompret A, Boitier F, Lenoir GM, Bressac-de Paillerets B, Baccard M, Bachollet B, Berthet P, Bonadona V, Bonnetblanc JM, Caron O, Chevrant-Breton J, Cuny JF, Dalle S, Delaunay M, Demange L, De Quatrebarbes J, Doré JF, Frénay M, Fricker JP, Gauthier-Villars M, Gesta P, Giraud S, Gorry P, Grange F, Green A, Huiart L, Janin N, Joly P, Kérob D, Lasset C, Leroux D, Limacher JM, Longy M, Mansard S, Marrou K, Martin-Denavit T, Mateus C, Maubec E, Olivier-Faivre L, Orlandini V, Pujol P, Sassolas B, Stoppa-Lyonnet D, Thomas L, Vabres P, Venat L, Wierzbicka E, and Zattara H

Subjects
Aged, Aged, 80 and over, Base Sequence, Carrier Proteins genetics, Chromosomes, Human, Pair 9, Cyclin-Dependent Kinase Inhibitor p16 genetics, Exons, Female, Gene Deletion, Genetic Predisposition to Disease, Humans, Male, Middle Aged, Molecular Sequence Data, Pedigree, Point Mutation, Reverse Transcriptase Polymerase Chain Reaction, Tumor Suppressor Protein p14ARF genetics, Genes, p16, Melanoma genetics
Abstract

Mutations in two genes encoding cell cycle regulatory proteins have been shown to cause familial cutaneous malignant melanoma (CMM). About 20% of melanoma-prone families bear a point mutation in the CDKN2A locus at 9p21, which encodes two unrelated proteins, p16(INK4a) and p14(ARF). Rare mutations in CDK4 have also been linked to the disease. Although the CDKN2A gene has been shown to be the major melanoma predisposing gene, there remains a significant proportion of melanoma kindreds linked to 9p21 in which germline mutations of CDKN2A have not been identified through direct exon sequencing. The purpose of this study was to assess the contribution of large rearrangements in CDKN2A to the disease in melanoma-prone families using multiplex ligation-dependent probe amplification. We examined 214 patients from independent pedigrees with at least two CMM cases. All had been tested for CDKN2A and CDK4 point mutation, and 47 were found positive. Among the remaining 167 negative patients, one carried a novel genomic deletion of CDKN2A exon 2. Overall, genomic deletions represented 2.1% of total mutations in this series (1 of 48), confirming that they explain a very small proportion of CMM susceptibility. In addition, we excluded a new gene on 9p21, KLHL9, as being a major CMM gene.

Published
2008
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