期刊
JOURNAL OF MOLECULAR DIAGNOSTICS
卷 11, 期 1, 页码 60-65出版社
ELSEVIER SCIENCE INC
DOI: 10.2353/jmoldx.2009.080072
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资金
- Illinois Department of Public Health
- Penny Severns Breast, Cervical, and Ovarian Cancer Research Fund
- Marsha Rivkin Center for Ovarian Cancer Research
- Babs Fisher Pilot Study Award [SPORE P-50 CA 83638, 5U01 CA113916]
- NATIONAL CANCER INSTITUTE [U01CA113916, P50CA083638] Funding Source: NIH RePORTER
An accurate biomarker for detection of ovarian cancer may reduce cancer-related mortality. Using a previously developed microarray-based technique, we evaluated differences in DNA methylation profiles in a panel of 56 genes using sections of serous papillary adenocarcinomas and uninvolved ovaries (n = 30) from women in a high-risk group. Methylation profiles were also generated for circulating DNA from blood of patients (n = 33) and healthy controls (n = 33). Using the most differentially methylated genes for naive Bayesian analysis, we identified ten of these profiles as potentially informative in tissues. Various combinations of these genes produced 69% sensitivity and 70% specificity for cancer detection as estimated under a stratified, fivefold cross-validation protocol. in plasma, five genes were identified as informative; their combination had 85% sensitivity and 61% specificity for cancer detection. These results suggest that differential methylation profiling in heterogeneous samples has the potential to identify components of a composite biomarker that may detect ovarian cancer in blood with significant accuracy. (J Mol Diagn 2009 11:60-65; DOI: 10.2353/jmoldx.2009.080072)
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