4.5 Article

Prognostication of early-onset endometrioid endometrial cancer based on genome-wide DNA methylation profiles

期刊

JOURNAL OF GYNECOLOGIC ONCOLOGY
卷 33, 期 6, 页码 -

出版社

KOREAN SOC GYNECOLOGY ONCOLOGY & COLPOSCOPY
DOI: 10.3802/jgo.2022.33.e74

关键词

DNA Methylation; Infinium Array; Endometrioid Carcinoma; Early Onset; Fertility Preservation; ZBTB38

资金

  1. Japan Agency for Medical Research and Development (AMED) [JP 20ae0101020h0005]

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This study identified genes associated with recurrence risk in endometrial cancer through genome-wide DNA methylation analysis, and established DNA methylation diagnostic criteria for predicting recurrence risk in patients aged 40 years or less.
Objective: The aim of this study was to establish criteria that would indicate whether fertility preservation therapy would likely be safe for patients aged 40 years or less with endometrioid endometrial cancer based on their DNA methylation profile. Methods: Forty-nine fresh-frozen tissue samples from patients with endometrial cancer from an initial cohort and 31 formalin-fixed paraffin-embedded tissue samples from a second cohort were subjected to genome-wide DNA methylation analysis using the Infinium Results: Epigenomic clustering of early-onset endometrial cancer was correlated with the widely used recurrence risk classification. Genes showing differences in DNA methylation levels between the low-recurrence-risk category and intermediate- and high-risk categories were accumulated in pathways related to fibroblast growth factor and nuclear factor-KB signaling. DNA hypomethylation and overexpression of ZBTB38 were frequently observed in the low-risk category. Eight hundred thirty-one marker CpG probes showed area under the curve values of >0.7 on the receiver operating characteristic curve for discrimination of patients belonging to the low-risk category. By combining marker CpG sites, seven panels for placing patients into the low-risk category with 91.3% or more sensitivity and specificity in both the initial and second cohorts were established. Conclusions: DNA methylation diagnostics criteria using up to 6 of 8 CpG sites for LPP, FOXO1, RNF4, EXOC6B, CCPG1, RREB1 and ZBTB38 may be applicable to recurrence risk estimation for patients aged 40 years or less with endometrial cancer, regardless of tumor cell content, even if formalin-fixed paraffin-embedded biopsy or curettage materials are used.

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