Clinical and genetic analysis of 18 pancreatic carcinoma/melanoma-prone families

• Published in: Clinical genetics 2010-04, Vol.77 (4), p.333-341
• Main Authors: Bartsch, DK, Langer, P, Habbe, N, Matthäi, E, Chaloupka, B, Sina, M, Hahn, SA, Slater, EP
• Format: Article
• Language: English
• Subjects: Adult; Aged; Aged, 80 and over; Biological and medical sciences; BRCA2; BRCA2 protein; BRCA2 Protein - genetics; Breast carcinoma; CDKN2A; Chromosome aberrations; DNA Mutational Analysis; Family; FAMMM; Female; Fundamental and applied biological sciences. Psychology; Gene expression; General aspects. Genetic counseling; Genetic analysis; Genetic Predisposition to Disease; Genetics; Genetics of eukaryotes. Biological and molecular evolution; Genotype & phenotype; Germ-Line Mutation - genetics; Heredity; Humans; Male; Medical genetics; Medical sciences; Melanoma; Melanoma - genetics; Middle Aged; Molecular and cellular biology; Mutation; NOD2 protein; Pancreatic cancer; Pancreatic carcinoma; Pancreatic Neoplasms - genetics; PCMS; Pedigree; Phenotype; Polymorphism, Genetic; Skin cancer; Skin Neoplasms - genetics; Skin Neoplasms - pathology; Young Adult
• ISSN: 0009-9163; 1399-0004
• DOI: 10.1111/j.1399-0004.2009.01352.x

Bartsch DK, Langer P, Habbe N, Matthäi E, Chaloupka B, Sina M, Hahn SA, Slater EP. Clinical and genetic analysis of 18 pancreatic carcinoma/melanoma‐prone families. Families with both melanoma and pancreatic cancer are extremely rare and some are affected with the autosomal dominant inherited familial atypical multiple mole melanoma‐pancreatic cancer (FAMMM‐PC) syndrome. The phenotypic and genotypic expressions of such pancreatic cancer–melanoma prone families are not well defined. The National Case Collection of Familial Pancreatic Cancer of the Deutsche Krebshilfe includes 110 pancreatic cancer families, 18 of which (16%) show an association of pancreatic cancer and melanoma. These 18 families were analysed regarding their phenotype and the prevalence of germline mutations in the candidate genes CDKN2A, BRCA2, CHEK2, NOD2, ARL11 and Palladin (PALLD). There were two types of families: five families with the FAMMM‐PC phenotype and 13 PC/melanoma families without the multiple mole phenotypes (PCMS). The prevalences of PC and melanoma in the two types of families were similar. The prevalence of other tumour types, especially breast carcinoma, was higher (11%) in PCMS‐ than in FAMMM‐PC families (2.4%, p = 0.02). CDKN2A mutations were identified in 2 of 18 (11%) PCMS families. A cosegregating BRCA2 mutation was detected in one PCMS family without breast cancer. None of the reported germline mutations in the NOD2, Palladin, ARL11 or CHEK2 genes were detected in either type of family. In conclusion, families with an accumulation of PC and melanoma show a large variety of phenotypic expression, which is not always consistent with the FAMMM‐PC phenotype. More PC/melanoma‐prone families need to be analysed to clarify whether such families represent variations of the FAMMM‐PC syndrome or two distinct hereditary cancer syndromes.