2002
DOI: 10.1097/00005537-200209000-00010
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Familial Head and Neck Cancer: Molecular Analysis of a New Clinical Entity

Abstract: Significance of the mutant p16 (p16R87P) in HNSCC tumorigenesis is strongly suggested by its loss of cell cycle arrest activity and its retention in tumor tissue with simultaneous loss of the wild-type allele. Further, the germline p16 mutation segregated with cancer predisposition within the family. In aggregate, these data suggest that there is a direct causal relationship between the germline p16 mutation in this family and HNSCC tumorigenesis. Based on our observations, the spectrum of familial cancers ass… Show more

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Cited by 27 publications
(23 citation statements)
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“…Increased risk of OSCC has also been reported in individuals inheriting functionally inactivating mutations in the CDKN2A gene. Somatic inactivation of this important regulator of cell cycle at the G1-S boundary has also been reported in sporadic OSCC tumors [27][28][29][30]. The case for the presence of predisposing genetic factors for OSCC is strengthened by the fact that positive family history increases an individual's risk for OSCC by 2-to 4-fold.…”
Section: Etiology and Risk Factorsmentioning
confidence: 90%
“…Increased risk of OSCC has also been reported in individuals inheriting functionally inactivating mutations in the CDKN2A gene. Somatic inactivation of this important regulator of cell cycle at the G1-S boundary has also been reported in sporadic OSCC tumors [27][28][29][30]. The case for the presence of predisposing genetic factors for OSCC is strengthened by the fact that positive family history increases an individual's risk for OSCC by 2-to 4-fold.…”
Section: Etiology and Risk Factorsmentioning
confidence: 90%
“…150,151 Oral cancer at a young age has also been reported in families with functionally inactivated germline mutations in p16. [152][153][154] Somatic inactivation of p16, an important regulator of the G1-S transition of the cell cycle, is also a common event in the genetic progression of sporadic oral cancers. 155 Although oral cancer is rarely associated with specific known inherited cancer syndromes, studies of the impact of family history on risk of oral cancer are consistent with a genetic component to sporadic cancers.…”
Section: Genetic Predisposition To Head and Neck Cancermentioning
confidence: 99%
“…They found a high incidence of HNSCC with a nonfunctional germline point mutation within exon 2 of the p16 (CDKN2A) gene giving rise to a mutant p16 protein which is formed by substituting proline for the wild type arginine at amino acid position 87 (p16R87P). The mutant (p16R87P) allele segregated with cancer predisposition in tested family members imply a direct causal relationship between the germline p16 mutation in this family with HNSCC tumorigenesis thereby adding p16 (CDKN2A) mutation a new clinical entity for familial HNSCC [114].…”
Section: Familial and Genetic Predisposition As Risk Factorsmentioning
confidence: 89%
“…A possible explanation for the prevalence of cancer within the same family is familial aggregation of shared risk factors such as genetic polymorphism for carcinogen metabolising genes or detoxifying enzymes [18]. In a study conducted by Yu et al [114] a molecular pedigree analysis of the p16 (CDKN2A) gene locus in blood and tumour DNA from a family was performed. They found a high incidence of HNSCC with a nonfunctional germline point mutation within exon 2 of the p16 (CDKN2A) gene giving rise to a mutant p16 protein which is formed by substituting proline for the wild type arginine at amino acid position 87 (p16R87P).…”
Section: Familial and Genetic Predisposition As Risk Factorsmentioning
confidence: 99%