PMID- 32066746 OWN - NLM STAT- MEDLINE DCOM- 20201116 LR - 20211204 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 10 IP - 1 DP - 2020 Feb 17 TI - Analysis of TET2 and EZH2 gene functions in chromosome instability in acute myeloid leukemia. PG - 2706 LID - 10.1038/s41598-020-59365-w [doi] LID - 2706 AB - TET2 and EZH2 play important roles in the epigenetic regulation in many cancers. However, their specific roles in acute myeloid leukemia (AML) pathogenesis remain unknown. Here, the expression, methylation or mutation of EZH2 and TET2 was determined and further correlated with the levels of the chromosome instability (CIN) genes MAD2 and CDC20. We down-regulated EZH2 and TET2 in AML cell lines and assessed the effect on CIN using fluorescence in situ hybridization (FISH). Our results showed that TET2, EZH2, MAD2 and CDC20 were aberrantly expressed in AML patients. The expression level of MAD2 or CDC20 was positively correlated with that of TET2 or EZH2. Hypermethylation of the TET2 gene down-regulated its transcription. Down-regulation of EZH2 or TET2 expression inhibited apoptosis, affected MAD2 and CDC20 expression, and promoted CIN in AML cells. Decitabine treatment restored TET2 methylation and EZH2 transcription and ameliorated CIN in AML. Therefore, TET2 and EZH2 play a tumor-inhibiting role in AML that affects CIN via MAD2 and CDC20. FAU - Wang, Jingyi AU - Wang J AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. AD - Department of Hematology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250011, P.R. China. FAU - He, Na AU - He N AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. FAU - Wang, Ruiqing AU - Wang R AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. FAU - Tian, Tian AU - Tian T AD - Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA. FAU - Han, Fengjiao AU - Han F AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. FAU - Zhong, Chaoqin AU - Zhong C AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. FAU - Zhang, Chen AU - Zhang C AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. FAU - Hua, Mingqiang AU - Hua M AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. FAU - Ji, Chunyan AU - Ji C AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. FAU - Ma, Daoxin AU - Ma D AUID- ORCID: 0000-0003-0664-8441 AD - Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P.R. China. daoxinma@sdu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200217 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Antimetabolites, Antineoplastic) RN - 0 (Cdc20 Proteins) RN - 0 (DNA-Binding Proteins) RN - 0 (MAD2L1 protein, human) RN - 0 (Mad2 Proteins) RN - 0 (Proto-Oncogene Proteins) RN - 0 (RNA, Small Interfering) RN - 156288-95-8 (CDC20 protein, human) RN - 776B62CQ27 (Decitabine) RN - EC 1.13.11.- (Dioxygenases) RN - EC 1.13.11.- (TET2 protein, human) RN - EC 2.1.1.43 (EZH2 protein, human) RN - EC 2.1.1.43 (Enhancer of Zeste Homolog 2 Protein) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Antimetabolites, Antineoplastic/therapeutic use MH - Cdc20 Proteins/*genetics/metabolism MH - Cell Line, Tumor MH - *Chromosomal Instability MH - Chromosomes, Human MH - DNA Methylation MH - DNA-Binding Proteins/antagonists & inhibitors/*genetics/metabolism MH - Decitabine/therapeutic use MH - Dioxygenases MH - Enhancer of Zeste Homolog 2 Protein/antagonists & inhibitors/*genetics/metabolism MH - Epigenesis, Genetic MH - Female MH - *Gene Expression Regulation, Leukemic MH - Humans MH - Leukemia, Myeloid, Acute/drug therapy/*genetics/metabolism/pathology MH - Mad2 Proteins/*genetics/metabolism MH - Male MH - Middle Aged MH - Proto-Oncogene Proteins/antagonists & inhibitors/*genetics/metabolism MH - RNA, Small Interfering/genetics/metabolism MH - Remission Induction MH - Transcription, Genetic PMC - PMC7026035 COIS- The authors declare no competing interests. EDAT- 2020/02/19 06:00 MHDA- 2020/11/18 06:00 PMCR- 2020/02/17 CRDT- 2020/02/19 06:00 PHST- 2019/06/04 00:00 [received] PHST- 2020/01/23 00:00 [accepted] PHST- 2020/02/19 06:00 [entrez] PHST- 2020/02/19 06:00 [pubmed] PHST- 2020/11/18 06:00 [medline] PHST- 2020/02/17 00:00 [pmc-release] AID - 10.1038/s41598-020-59365-w [pii] AID - 59365 [pii] AID - 10.1038/s41598-020-59365-w [doi] PST - epublish SO - Sci Rep. 2020 Feb 17;10(1):2706. doi: 10.1038/s41598-020-59365-w.