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Zhao A, Zhou H, Yang J, Li M, Niu T. Epigenetic regulation in hematopoiesis and its implications in the targeted therapy of hematologic malignancies. Signal Transduct Target Ther 2023; 8:71. [PMID: 36797244 PMCID: PMC9935927 DOI: 10.1038/s41392-023-01342-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 01/03/2023] [Accepted: 01/19/2023] [Indexed: 02/18/2023] Open
Abstract
Hematologic malignancies are one of the most common cancers, and the incidence has been rising in recent decades. The clinical and molecular features of hematologic malignancies are highly heterogenous, and some hematologic malignancies are incurable, challenging the treatment, and prognosis of the patients. However, hematopoiesis and oncogenesis of hematologic malignancies are profoundly affected by epigenetic regulation. Studies have found that methylation-related mutations, abnormal methylation profiles of DNA, and abnormal histone deacetylase expression are recurrent in leukemia and lymphoma. Furthermore, the hypomethylating agents and histone deacetylase inhibitors are effective to treat acute myeloid leukemia and T-cell lymphomas, indicating that epigenetic regulation is indispensable to hematologic oncogenesis. Epigenetic regulation mainly includes DNA modifications, histone modifications, and noncoding RNA-mediated targeting, and regulates various DNA-based processes. This review presents the role of writers, readers, and erasers of DNA methylation and histone methylation, and acetylation in hematologic malignancies. In addition, this review provides the influence of microRNAs and long noncoding RNAs on hematologic malignancies. Furthermore, the implication of epigenetic regulation in targeted treatment is discussed. This review comprehensively presents the change and function of each epigenetic regulator in normal and oncogenic hematopoiesis and provides innovative epigenetic-targeted treatment in clinical practice.
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Affiliation(s)
- Ailin Zhao
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Hui Zhou
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Jinrong Yang
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Meng Li
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Ting Niu
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China.
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Duan MY, Li M, Tian H, Tang G, Yang YC, Peng NC. Down-regulation of lncRNA NEAT1 regulated by miR-194-5p/DNMT3A facilitates acute myeloid leukemia. Blood Cells Mol Dis 2020; 82:102417. [PMID: 32179410 DOI: 10.1016/j.bcmd.2020.102417] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/20/2020] [Accepted: 02/23/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVE miR-194-5p and NEAT1 have been reported to be associated with multiple malignancies, but their roles in acute myeloid leukemia (AML) remains not fully understood. METHODS Bone marrow samples were collected for monocyte separation. qRT-PCR assay was performed to investigate the expression patterns of NEAT1 and miR-194-5p in AML. CCK-8, soft agar colony formation, flow cytometry and transwell assays were employed to explore the biological functions of NEAT1 or miR-194-5p. Methylation PCR was performed to monitor the methylation of NEAT1. Luciferase reporter assay was subjected to verify the relationship between miR-194-5p and DNMT3A. Immunofluorescence and western blotting were performed to detect the alterations of protein expression. RESULTS NEAT1 and miR-194-5p were both down-regulated in AML. Overexpression of either NEAT1 or miR-194-5p repressed proliferation, induced apoptosis and restrained migration and invasion of AML cells. There was a negative correlation between NEAT1 and DNMT3A in AML. Knockdown of DNMT3A dramatically decreased the methylation of NEAT1. Moreover, DNMT3A was identified as a downstream target of miR-194-5p. Furthermore, down-regulation of DNMT3A rescued the impacts on the malignant phenotypes of NEAT1 inhibition by miR-194-5p inhibitor. CONCLUSION Altogether, down-regulation of NEAT1 mediated by miR-194-5p/DNMT3A axis promotes AML progression, which might provide therapeutic targets in AML treatment.
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Affiliation(s)
- Ming-Yue Duan
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054, PR China
| | - Ming Li
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054, PR China
| | - Hui Tian
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054, PR China
| | - Gen Tang
- Institute of Pediatrics, Shenzhen Children's Hospital, Shenzhen 528038, PR China
| | - Yu-Cong Yang
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Nian-Cai Peng
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054, PR China.
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Zhang YY, Zhou JD, Yang DQ, He PF, Yao DM, Qian Z, Yang J, Xu WR, Lin J, Qian J. Intragenic hypomethylation of DNMT3A in patients with myelodysplastic syndrome. Clin Chem Lab Med 2018; 56:485-491. [PMID: 29031013 DOI: 10.1515/cclm-2016-0142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 09/07/2017] [Indexed: 01/12/2023]
Abstract
BACKGROUND DNMT3A is a DNA methyltransferase that acts in de novo methylation. Aberrant expression of DNMT3A has been reported in several human diseases, including myelodysplastic syndrome (MDS). However, the pattern of DNMT3A methylation remains unknown in MDS. METHODS The present study was aimed to investigate the methylation status of DNMT3A intragenic differentially methylated region 2 (DMR2) using real-time quantitative methylation-specific PCR and analyze its clinical significance in MDS. RESULTS Aberrant hypomethylation of DNMT3A was found in 57% (51/90) MDS cases. There were no significant differences in age, sex, white blood cell counts, platelet counts, hemoglobin counts and World Health Organization, International Prognostic Scoring System and karyotype classifications between DNMT3A hypomethylated and DNMT3A hypermethylated groups. However, the patients with DNMT3A hypomethylation had shorter overall survival time than those without DNMT3A hypomethylation (11 months vs. 36 months, p=0.033). Multivariate analysis confirmed the independent adverse impact of DNMT3A hypomethylation in MDS. CONCLUSIONS Our data suggest that DNMT3A DMR2 hypomethylation may be a negative prognostic hallmark in MDS.
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Affiliation(s)
- Ying-Ying Zhang
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,Department of Hematology and Oncology, Yizheng People's Hospital, Yangzhou, Jiangsu, P.R. China
| | - Jing-Dong Zhou
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China
| | - Dong-Qin Yang
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China
| | - Pin-Fang He
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China
| | - Dong-Ming Yao
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China
| | - Zhen Qian
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China
| | - Jing Yang
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China
| | - Wen-Rong Xu
- Key Laboratory of Laboratory Medicine of Jiangsu Province, Medical Key Talent Project of Zhenjiang, Zhenjiang, P.R. China
| | - Jiang Lin
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China.,Laboratory Center, Affiliated People's Hospital of Jiangsu University, 8 Dianli Rd., 212002 Zhenjiang, P.R. China, Fax: +86.511.85234387
| | - Jun Qian
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China.,The Key Laboratory of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, Jiangsu, P.R. China.,Department of Hematology, Affiliated People's Hospital of Jiangsu University, 8 Dianli Rd., 212002 Zhenjiang, P.R. China, Fax: +86.511.85234387
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Differential Analysis of Genetic, Epigenetic, and Cytogenetic Abnormalities in AML. Int J Genomics 2017; 2017:2913648. [PMID: 28713819 PMCID: PMC5496127 DOI: 10.1155/2017/2913648] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 03/21/2017] [Accepted: 04/18/2017] [Indexed: 11/17/2022] Open
Abstract
Acute myeloid leukemia (AML) is a haematological malignancy characterized by the excessive proliferation of immature myeloid cells coupled with impaired differentiation. Many AML cases have been reported without any known cytogenetic abnormalities and carry no mutation in known AML-associated driver genes. In this study, 200 AML cases were selected from a publicly available cohort and differentially analyzed for genetic, epigenetic, and cytogenetic abnormalities. Three genes (FLT3, DNMT3A, and NPMc) are found to be predominantly mutated. We identified several aberrations to be associated with genome-wide methylation changes. These include Del (5q), T (15; 17), and NPMc mutations. Four aberrations-Del (5q), T (15; 17), T (9; 22), and T (9; 11)-are significantly associated with patient survival. Del (5q)-positive patients have an average survival of less than 1 year, whereas T (15; 17)-positive patients have a significantly better prognosis. Combining the methylation and mutation data reveals three distinct patient groups and four clusters of genes. We speculate that combined signatures have the better potential to be used for subclassification of AML, complementing cytogenetic signatures. A larger sample cohort and further investigation of the effects observed in this study are required to enable the clinical application of our patient classification aided by DNA methylation.
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