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학술저널
저자정보
김미경 (단국대학교) 이인호 (제일병원) 이기헌 (제일병원 산부인과) 이유경 (단국대학교) 소경아 (단국대학교 의과대학 제일병원 병리과) 홍성란 (질병관리본부) 황창선 (질병관리본부 국립보건연구원) 기미경 (질병관리본부) 이지은 (가톨릭대학교) 강천 (가톨릭대학교) 허수영 (단국대학교) 박종섭 김태진
저널정보
대한부인종양학회 Journal of Gynecologic Oncology Journal of Gynecologic Oncology Vol.27 No.2
발행연도
2016.1
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1 - 9 (9page)

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Objective: DNA methylation has been shown to be a potential biomarker for early cancer detection. The aim of this study was to evaluate DNA methylation profiles according to liquidbased Pap (LBP) test results and to assess their diagnostic value in a Korean population. Methods: A total of 205 patients with various Papanicolaou test results were enrolled to this study (negative, 26; atypical squamous cells of undetermined significance, 39; low grade squamous intraepithelial lesion, 44; high grade squamous intraepithelial lesion (HSIL), 48; and cancer, 48). DNA methylation analysis of four genes, ADCYAP1 , PAX 1 , MAL , and CADM1 , was performed on residual cervical cells from LBP samples using a quantitative bisulfite pyrosequencing method. To evaluate the diagnostic performance of the four methylated genes for cancer detection, receiver operating characteristic (ROC) curves were drawn. Sensitivities and specificities were also tested at cutoffs determined from the ROC curves. Results: Cervical cancer cells showed dramatically increased methylation levels for the four genes analyzed. ADCYAP1 and PAX 1 also trended toward elevated methylation levels in HSIL samples, although the levels were much lower than those in cancer cells. The sensitivities of methylated ADCYAP1 , PAX 1 , MAL , and CADM1 for the detection of cancer were 79.2%, 75.0%, 70.8%, and 52.1%, and the specificities were 92.0%, 94.0%, 94.7%, and 94.0%, respectively. Methylated ADCYAP1 and PAX 1 demonstrated relatively better discriminatory ability than did methylated MAL and CADM1 (area under the curves 0.911 and 0.916 vs. 0.854 and 0.756, respectively). Conclusion: DNA methylation status, especially in the ADCYAP1 and PAX 1 genes, showed relatively good specificity, ranging from 90% to 94%. The possible additive and complementary roles of DNA methylation testing with respect to conventional cervical cancer screening programs will need to be validated in prospective population-based studies.

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