期刊
CLINICAL CANCER RESEARCH
卷 18, 期 2, 页码 400-407出版社
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1078-0432.CCR-11-2283
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资金
- American Cancer Society [RPG-02-151-01-CCE]
- F.M. Kirby Foundation
- National Cancer Institute, Bethesda, MD [P01CA124570, R01CA118989]
- William Randolph Hearst Foundations
- Doris Duke Distinguished Clinical Scientist Award
Purpose: Age-adjusted cancer incidence and age-related penetrance studies have helped guide cancer risk assessment and management. PTEN hamartoma tumor syndrome (PHTS) is a term encompassing subsets of several clinical syndromes with germline mutations in the PTEN tumor suppressor gene. We conducted the first prospective study to clarify corresponding cancer risks to shed biologic insights on human germline PTEN mutations, and to better inform current surveillance recommendations on the basis of expert opinion. Experimental Design: A series of 3,399 individuals meeting relaxed International Cowden Consortium PHTS criteria were prospectively recruited; 368 individuals were found to have deleterious germline PTEN mutations. Age-adjusted standardized incidence ratio (SIR) calculations and genotype-phenotype analyses were carried out. Results: Elevated SIRs were found for carcinomas of the breast [25.4, 95% confidence interval (CI), 19.8-32.0], thyroid (51.1, 38.1-67.1), endometrium (42.9, 28.1-62.8), colorectum (10.3, 5.6-17.4), kidney (30.6, 17.8-49.4), and melanoma (8.5, 4.1-15.6). Estimated lifetime risks were, respectively, 85.2% (95% CI, 71.4%-99.1%), 35.2% (19.7%-50.7%), 28.2% (17.1%-39.3%), 9.0% (3.8%-14.1%), 33.6% (10.4%-56.9%), and 6% (1.6%-9.4%). Promoter mutations were associated with breast cancer, whereas colorectal cancer was associated with nonsense mutations. Conclusion: Lifetime risks for a variety of cancers, now extending to colorectal cancer, kidney cancer, and melanoma, are increased in patients with PTEN mutations. The genotype-phenotype associations here may provide new insights on PTEN structure and function. We propose a comprehensive approach to surveillance of patients with PTEN mutations. Clin Cancer Res; 18(2); 400-7. (C) 2012 AACR.
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