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Hlady RA, Novakova S, Opavska J, Klinkebiel D, Peters SL, Bies J, Hannah J, Iqbal J, Anderson KM, Siebler HM, Smith LM, Greiner TC, Bastola D, Joshi S, Lockridge O, Simpson MA, Felsher DW, Wagner KU, Chan WC, Christman JK, Opavsky R. Loss of Dnmt3b function upregulates the tumor modifier Ment and accelerates mouse lymphomagenesis. J Clin Invest 2012; 122:163-77. [PMID: 22133874 PMCID: PMC3248285 DOI: 10.1172/jci57292] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 10/12/2011] [Indexed: 02/04/2023] Open
Abstract
DNA methyltransferase 3B (Dnmt3b) belongs to a family of enzymes responsible for methylation of cytosine residues in mammals. DNA methylation contributes to the epigenetic control of gene transcription and is deregulated in virtually all human tumors. To better understand the generation of cancer-specific methylation patterns, we genetically inactivated Dnmt3b in a mouse model of MYC-induced lymphomagenesis. Ablation of Dnmt3b function using a conditional knockout in T cells accelerated lymphomagenesis by increasing cellular proliferation, which suggests that Dnmt3b functions as a tumor suppressor. Global methylation profiling revealed numerous gene promoters as potential targets of Dnmt3b activity, the majority of which were demethylated in Dnmt3b-/- lymphomas, but not in Dnmt3b-/- pretumor thymocytes, implicating Dnmt3b in maintenance of cytosine methylation in cancer. Functional analysis identified the gene Gm128 (which we termed herein methylated in normal thymocytes [Ment]) as a target of Dnmt3b activity. We found that Ment was gradually demethylated and overexpressed during tumor progression in Dnmt3b-/- lymphomas. Similarly, MENT was overexpressed in 67% of human lymphomas, and its transcription inversely correlated with methylation and levels of DNMT3B. Importantly, knockdown of Ment inhibited growth of mouse and human cells, whereas overexpression of Ment provided Dnmt3b+/+ cells with a proliferative advantage. Our findings identify Ment as an enhancer of lymphomagenesis that contributes to the tumor suppressor function of Dnmt3b and suggest it could be a potential target for anticancer therapies.
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Affiliation(s)
- Ryan A. Hlady
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Slavomira Novakova
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Jana Opavska
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - David Klinkebiel
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Staci L. Peters
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Juraj Bies
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Jay Hannah
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Javeed Iqbal
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Kristi M. Anderson
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Hollie M. Siebler
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Lynette M. Smith
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Timothy C. Greiner
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Dhundy Bastola
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Shantaram Joshi
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Oksana Lockridge
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Melanie A. Simpson
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Dean W. Felsher
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Kay-Uwe Wagner
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Wing C. Chan
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Judith K. Christman
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Rene Opavsky
- Eppley Institute for Research in Cancer and Allied Diseases,
Department of Biochemistry and Molecular Biology, College of Medicine, and
Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
College of Information Science and Technology, University of Nebraska, Omaha, Nebraska, USA.
Center for Lymphoma and Leukemia Research,
Department of Pathology and Microbiology,
Biomedical Research Training Program, and
College of Public Health, UNMC, Omaha, Nebraska, USA.
Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA.
Division of Oncology, Department of Medicine, Department of Pathology, and Department of Molecular Imaging, Stanford University School of Medicine, Stanford, California, USA
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