Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance

Abstract Background Aberrant DNA methylation is a vital molecular alteration commonly detected in type I endometrial cancers (EC), and tet methylcytosine dioxygenase 2 (TET2) and 5-hydroxymethylcytosine (5hmC) play significant roles in DNA demethylation. However, little is known about the function a...

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Main Authors: Lei Kuang, Jingbo Zhang, Yanyu Li, Qing Wang, Jianwei Liu, Bei Zhang
Format: Article
Language:English
Published: BMC 2024-03-01
Series:BMC Women's Health
Subjects:
Online Access:https://doi.org/10.1186/s12905-024-03021-2
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author Lei Kuang
Jingbo Zhang
Yanyu Li
Qing Wang
Jianwei Liu
Bei Zhang
author_facet Lei Kuang
Jingbo Zhang
Yanyu Li
Qing Wang
Jianwei Liu
Bei Zhang
author_sort Lei Kuang
collection DOAJ
description Abstract Background Aberrant DNA methylation is a vital molecular alteration commonly detected in type I endometrial cancers (EC), and tet methylcytosine dioxygenase 2 (TET2) and 5-hydroxymethylcytosine (5hmC) play significant roles in DNA demethylation. However, little is known about the function and correlation of TET2 and 5hmC co-expressed in EC. This study intended to investigate the clinical significance of TET2 and 5hmC in EC. Methods The levels of TET2 and 5hmC were detected in 326 endometrial tissues by immumohistochemistry, and the correlation of their level was detected by Pearson analysis. The association between the levels of TET2 and 5hmC and clinicopathologic characteristics was analyzed. Prognostic value of TET2 and 5hmC was explored by Kaplan–Meier analysis. The Cox proportional hazard regression model was used for univariate and multivariate analyses. Results Based on the analysis results, TET2 protein level was positively correlated with 5hmC level in EC tissues (r = 0.801, P < 0.001). TET2+5hmC+ (high TET2 and high 5hmC) association was significantly associated with well differentiation, myometrial invasion, negative lymph node metastasis, and tumor stage in EC. Association of TET2 and 5hmC was confirmed as a prognostic factor (HR = 2.843, 95%CI = 1.226–3.605, P = 0.007) for EC patients, and EC patients with TET2−5hmC− level had poor overall survival. Conclusions In summary, the association of TET2 and 5hmC was downregulated in EC tissues, and may be a potential poor prognostic indicator for EC patients. Combined detection of TET2 and 5hmC may be valuable for the diagnosis and prognosis of EC.
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spelling doaj.art-e06a82867885474189bc9862eed96f692024-03-24T12:32:23ZengBMCBMC Women's Health1472-68742024-03-012411910.1186/s12905-024-03021-2Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significanceLei Kuang0Jingbo Zhang1Yanyu Li2Qing Wang3Jianwei Liu4Bei Zhang5Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical UniversityDepartment of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical UniversityDepartment of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical UniversityDepartment of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical UniversityDepartment of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical UniversityDepartment of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical UniversityAbstract Background Aberrant DNA methylation is a vital molecular alteration commonly detected in type I endometrial cancers (EC), and tet methylcytosine dioxygenase 2 (TET2) and 5-hydroxymethylcytosine (5hmC) play significant roles in DNA demethylation. However, little is known about the function and correlation of TET2 and 5hmC co-expressed in EC. This study intended to investigate the clinical significance of TET2 and 5hmC in EC. Methods The levels of TET2 and 5hmC were detected in 326 endometrial tissues by immumohistochemistry, and the correlation of their level was detected by Pearson analysis. The association between the levels of TET2 and 5hmC and clinicopathologic characteristics was analyzed. Prognostic value of TET2 and 5hmC was explored by Kaplan–Meier analysis. The Cox proportional hazard regression model was used for univariate and multivariate analyses. Results Based on the analysis results, TET2 protein level was positively correlated with 5hmC level in EC tissues (r = 0.801, P < 0.001). TET2+5hmC+ (high TET2 and high 5hmC) association was significantly associated with well differentiation, myometrial invasion, negative lymph node metastasis, and tumor stage in EC. Association of TET2 and 5hmC was confirmed as a prognostic factor (HR = 2.843, 95%CI = 1.226–3.605, P = 0.007) for EC patients, and EC patients with TET2−5hmC− level had poor overall survival. Conclusions In summary, the association of TET2 and 5hmC was downregulated in EC tissues, and may be a potential poor prognostic indicator for EC patients. Combined detection of TET2 and 5hmC may be valuable for the diagnosis and prognosis of EC.https://doi.org/10.1186/s12905-024-03021-2Endometrial cancerTet methylcytosine dioxygenase 25-hydroxymethylcytosineAssociationPrognosis
spellingShingle Lei Kuang
Jingbo Zhang
Yanyu Li
Qing Wang
Jianwei Liu
Bei Zhang
Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance
BMC Women's Health
Endometrial cancer
Tet methylcytosine dioxygenase 2
5-hydroxymethylcytosine
Association
Prognosis
title Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance
title_full Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance
title_fullStr Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance
title_full_unstemmed Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance
title_short Association of tet methylcytosine dioxygenase 2 and 5-hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance
title_sort association of tet methylcytosine dioxygenase 2 and 5 hydroxymethylcytosine in endometrioid adenocarcinoma and its clinical significance
topic Endometrial cancer
Tet methylcytosine dioxygenase 2
5-hydroxymethylcytosine
Association
Prognosis
url https://doi.org/10.1186/s12905-024-03021-2
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