The Mechanism of DNA Methylation and miRNA in Breast Cancer

Breast cancer is the most prevalent cancer in the world. Currently, the main treatments for breast cancer are radiotherapy, chemotherapy, targeted therapy and surgery. The treatment measures for breast cancer depend on the molecular subtype. Thus, the exploration of the underlying molecular mechanis...

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Main Authors: Lingyuan Ma, Chenyu Li, Hanlin Yin, Jiashu Huang, Shenghao Yu, Jin Zhao, Yongxu Tang, Min Yu, Jie Lin, Lei Ding, Qinghua Cui
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/11/9360
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author Lingyuan Ma
Chenyu Li
Hanlin Yin
Jiashu Huang
Shenghao Yu
Jin Zhao
Yongxu Tang
Min Yu
Jie Lin
Lei Ding
Qinghua Cui
author_facet Lingyuan Ma
Chenyu Li
Hanlin Yin
Jiashu Huang
Shenghao Yu
Jin Zhao
Yongxu Tang
Min Yu
Jie Lin
Lei Ding
Qinghua Cui
author_sort Lingyuan Ma
collection DOAJ
description Breast cancer is the most prevalent cancer in the world. Currently, the main treatments for breast cancer are radiotherapy, chemotherapy, targeted therapy and surgery. The treatment measures for breast cancer depend on the molecular subtype. Thus, the exploration of the underlying molecular mechanisms and therapeutic targets for breast cancer remains a hotspot in research. In breast cancer, a high level of expression of DNMTs is highly correlated with poor prognosis, that is, the abnormal methylation of tumor suppressor genes usually promotes tumorigenesis and progression. MiRNAs, as non-coding RNAs, have been identified to play key roles in breast cancer. The aberrant methylation of miRNAs could lead to drug resistance during the aforementioned treatment. Therefore, the regulation of miRNA methylation might serve as a therapeutic target in breast cancer. In this paper, we reviewed studies on the regulatory mechanisms of miRNA and DNA methylation in breast cancer from the last decade, focusing on the promoter region of tumor suppressor miRNAs methylated by DNMTs and the highly expressed oncogenic miRNAs inhibited by DNMTs or activating TETs.
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spelling doaj.art-144aa858dd92405cbdff666a868e0e762023-11-18T07:57:59ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-05-012411936010.3390/ijms24119360The Mechanism of DNA Methylation and miRNA in Breast CancerLingyuan Ma0Chenyu Li1Hanlin Yin2Jiashu Huang3Shenghao Yu4Jin Zhao5Yongxu Tang6Min Yu7Jie Lin8Lei Ding9Qinghua Cui10Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaLab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, ChinaBreast cancer is the most prevalent cancer in the world. Currently, the main treatments for breast cancer are radiotherapy, chemotherapy, targeted therapy and surgery. The treatment measures for breast cancer depend on the molecular subtype. Thus, the exploration of the underlying molecular mechanisms and therapeutic targets for breast cancer remains a hotspot in research. In breast cancer, a high level of expression of DNMTs is highly correlated with poor prognosis, that is, the abnormal methylation of tumor suppressor genes usually promotes tumorigenesis and progression. MiRNAs, as non-coding RNAs, have been identified to play key roles in breast cancer. The aberrant methylation of miRNAs could lead to drug resistance during the aforementioned treatment. Therefore, the regulation of miRNA methylation might serve as a therapeutic target in breast cancer. In this paper, we reviewed studies on the regulatory mechanisms of miRNA and DNA methylation in breast cancer from the last decade, focusing on the promoter region of tumor suppressor miRNAs methylated by DNMTs and the highly expressed oncogenic miRNAs inhibited by DNMTs or activating TETs.https://www.mdpi.com/1422-0067/24/11/9360breast cancerDNA methylationmiRNAdrug resistance
spellingShingle Lingyuan Ma
Chenyu Li
Hanlin Yin
Jiashu Huang
Shenghao Yu
Jin Zhao
Yongxu Tang
Min Yu
Jie Lin
Lei Ding
Qinghua Cui
The Mechanism of DNA Methylation and miRNA in Breast Cancer
International Journal of Molecular Sciences
breast cancer
DNA methylation
miRNA
drug resistance
title The Mechanism of DNA Methylation and miRNA in Breast Cancer
title_full The Mechanism of DNA Methylation and miRNA in Breast Cancer
title_fullStr The Mechanism of DNA Methylation and miRNA in Breast Cancer
title_full_unstemmed The Mechanism of DNA Methylation and miRNA in Breast Cancer
title_short The Mechanism of DNA Methylation and miRNA in Breast Cancer
title_sort mechanism of dna methylation and mirna in breast cancer
topic breast cancer
DNA methylation
miRNA
drug resistance
url https://www.mdpi.com/1422-0067/24/11/9360
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