1
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Guarnera L, Visconte V. The metabolic fuel of paroxysmal nocturnal haemoglobinuria. Br J Haematol 2024; 204:2162-2164. [PMID: 38719212 DOI: 10.1111/bjh.19510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 06/15/2024]
Abstract
Metabolic reprogramming has been investigated in haematological malignancies. To date, a few studies have analysed the metabolic profile of paroxysmal nocturnal haemoglobinuria (PNH). The study by Chen and colleagues sheds light on the involvement of metabolic changes in the proliferation of PNH clones. Commentary on: Chen et al. The histone demethylase JMJD1C regulates CPS1 expression and promotes the proliferation of PNH clones through cell metabolic reprogramming. Br J Haematol 2024;204:2468-2479.
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Affiliation(s)
- Luca Guarnera
- Department of Translational Hematology & Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Valeria Visconte
- Department of Translational Hematology & Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
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2
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Belle R, Saraç H, Salah E, Bhushan B, Szykowska A, Roper G, Tumber A, Kriaucionis S, Burgess-Brown N, Schofield CJ, Brown T, Kawamura A. Focused Screening Identifies Different Sensitivities of Human TET Oxygenases to the Oncometabolite 2-Hydroxyglutarate. J Med Chem 2024; 67:4525-4540. [PMID: 38294854 PMCID: PMC10983004 DOI: 10.1021/acs.jmedchem.3c01820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/10/2023] [Accepted: 01/04/2024] [Indexed: 02/01/2024]
Abstract
Ten-eleven translocation enzymes (TETs) are Fe(II)/2-oxoglutarate (2OG) oxygenases that catalyze the sequential oxidation of 5-methylcytosine to 5-hydroxymethylcytosine, 5-formylcytosine, and 5-carboxylcytosine in eukaryotic DNA. Despite their roles in epigenetic regulation, there is a lack of reported TET inhibitors. The extent to which 2OG oxygenase inhibitors, including clinically used inhibitors and oncometabolites, modulate DNA modifications via TETs has been unclear. Here, we report studies on human TET1-3 inhibition by a set of 2OG oxygenase-focused inhibitors, employing both enzyme-based and cellular assays. Most inhibitors manifested similar potencies for TET1-3 and caused increases in cellular 5hmC levels. (R)-2-Hydroxyglutarate, an oncometabolite elevated in isocitrate dehydrogenase mutant cancer cells, showed different degrees of inhibition, with TET1 being less potently inhibited than TET3 and TET2, potentially reflecting the proposed role of TET2 mutations in tumorigenesis. The results highlight the tractability of TETs as drug targets and provide starting points for selective inhibitor design.
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Affiliation(s)
- Roman Belle
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Chemistry
− School of Natural and Environmental Sciences, Bedson Building, Newcastle University, NE1 7RU Newcastle upon Tyne, United Kingdom
| | - Hilal Saraç
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Chemistry
− School of Natural and Environmental Sciences, Bedson Building, Newcastle University, NE1 7RU Newcastle upon Tyne, United Kingdom
- Radcliffe
Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, Wellcome Trust Centre for Human
Genetics, Roosevelt Drive, OX3 7BN Oxford, United Kingdom
| | - Eidarus Salah
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Centre
for Medicines Discovery, University of Oxford, Old Road Campus Research Building,
Roosevelt Drive, OX3 7DQ Oxford, United Kingdom
| | - Bhaskar Bhushan
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Radcliffe
Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, Wellcome Trust Centre for Human
Genetics, Roosevelt Drive, OX3 7BN Oxford, United Kingdom
| | - Aleksandra Szykowska
- Centre
for Medicines Discovery, University of Oxford, Old Road Campus Research Building,
Roosevelt Drive, OX3 7DQ Oxford, United Kingdom
| | - Grace Roper
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Chemistry
− School of Natural and Environmental Sciences, Bedson Building, Newcastle University, NE1 7RU Newcastle upon Tyne, United Kingdom
| | - Anthony Tumber
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Ineos Oxford
Institute for Antimicrobial Research, University
of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Skirmantas Kriaucionis
- Ludwig
Institute for Cancer Research, Nuffield Department of Medicine, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, OX3 7DQ Oxford, United Kingdom
| | - Nicola Burgess-Brown
- Centre
for Medicines Discovery, University of Oxford, Old Road Campus Research Building,
Roosevelt Drive, OX3 7DQ Oxford, United Kingdom
| | - Christopher J. Schofield
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Ineos Oxford
Institute for Antimicrobial Research, University
of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Tom Brown
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Akane Kawamura
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
- Chemistry
− School of Natural and Environmental Sciences, Bedson Building, Newcastle University, NE1 7RU Newcastle upon Tyne, United Kingdom
- Radcliffe
Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, Wellcome Trust Centre for Human
Genetics, Roosevelt Drive, OX3 7BN Oxford, United Kingdom
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3
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Šimelis K, Saraç H, Salah E, Nishio K, McAllister TE, Corner TP, Tumber A, Belle R, Schofield CJ, Suga H, Kawamura A. Selective targeting of human TET1 by cyclic peptide inhibitors: Insights from biochemical profiling. Bioorg Med Chem 2024; 99:117597. [PMID: 38262305 DOI: 10.1016/j.bmc.2024.117597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/25/2024]
Abstract
Ten-Eleven Translocation (TET) enzymes are Fe(II)/2OG-dependent oxygenases that play important roles in epigenetic regulation, but selective inhibition of the TETs is an unmet challenge. We describe the profiling of previously identified TET1-binding macrocyclic peptides. TiP1 is established as a potent TET1 inhibitor (IC50 = 0.26 µM) with excellent selectivity over other TETs and 2OG oxygenases. TiP1 alanine scanning reveals the critical roles of Trp10 and Glu11 residues for inhibition of TET isoenzymes. The results highlight the utility of the RaPID method to identify potent enzyme inhibitors with selectivity over closely related paralogues. The structure-activity relationship data generated herein may find utility in the development of chemical probes for the TETs.
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Affiliation(s)
- Klemensas Šimelis
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Hilal Saraç
- Chemistry - School of Natural and Environmental Sciences, Newcastle University, Bedson Building, NE1 7RU Newcastle upon Tyne, United Kingdom
| | - Eidarus Salah
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Kosuke Nishio
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tom E McAllister
- Chemistry - School of Natural and Environmental Sciences, Newcastle University, Bedson Building, NE1 7RU Newcastle upon Tyne, United Kingdom
| | - Thomas P Corner
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Anthony Tumber
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Roman Belle
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom; Chemistry - School of Natural and Environmental Sciences, Newcastle University, Bedson Building, NE1 7RU Newcastle upon Tyne, United Kingdom
| | - Christopher J Schofield
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akane Kawamura
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom; Chemistry - School of Natural and Environmental Sciences, Newcastle University, Bedson Building, NE1 7RU Newcastle upon Tyne, United Kingdom.
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4
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Guarnera L, Jha BK. TET2 mutation as prototypic clonal hematopoiesis lesion. Semin Hematol 2024; 61:51-60. [PMID: 38431463 PMCID: PMC10978279 DOI: 10.1053/j.seminhematol.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/12/2024] [Accepted: 01/28/2024] [Indexed: 03/05/2024]
Abstract
Loss of function TET2 mutation (TET2MT) is one of the most frequently observed lesions in clonal hematopoiesis (CH). TET2 a member TET-dioxygenase family of enzymes that along with TET1 and TET3, progressively oxidize 5-methyl cytosine (mC) resulting in regulated demethylation of promoter, enhancer and silencer elements of the genome. This process is critical for efficient transcription that determine cell lineage fate, proliferation and survival and the maintenance of the genomic fidelity with aging of the organism. Partial or complete loss-of-function TET2 mutations create regional and contextual DNA hypermethylation leading to gene silencing or activation that result in skewed myeloid differentiation and clonal expansion. In addition to myeloid skewing, loss of TET2 creates differentiation block and provides proliferative advantage to hematopoietic stem and progenitor cells (HSPCs). TET2MT is a prototypical lesion in CH, since the mutant clones dominate during stress hematopoiesis and often associates with evolution of myeloid malignancies. TET2MT clones has unique privilege to create and persist in pro-inflammatory milieu. Despite extensive knowledge regarding biochemical mechanisms underlying distorted myeloid differentiation, and enhanced self-replication of TET2MT HSPC, the mechanistic link of various pathogenesis associated with TET2 loss in CHIP is less understood. Here we review the recent development in TET2 biology and its probable mechanistic link in CH with aging and inflammation. We also explored the therapeutic strategies of targeting TET2MT associated CHIP and the utility of targeting TET2 in normal hematopoiesis and somatic cell reprograming. We explore the biochemical mechanisms and candidate therapies that emerged in last decade of research.
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Affiliation(s)
- Luca Guarnera
- Department of Biomedicine and Prevention, Molecular Medicine and Applied Biotechnology, University of Rome Tor Vergata, Rome, Italy; Department of Translational Haematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Babal K Jha
- Department of Translational Haematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH; Center for Immunotherapy and Precision Immuno-Oncology (CITI), Lerner Research Institute (LRI) Cleveland Clinic, Cleveland, OH.
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5
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Wallace L, Obeng EA. Noncoding rules of survival: epigenetic regulation of normal and malignant hematopoiesis. Front Mol Biosci 2023; 10:1273046. [PMID: 38028538 PMCID: PMC10644717 DOI: 10.3389/fmolb.2023.1273046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 10/05/2023] [Indexed: 12/01/2023] Open
Abstract
Hematopoiesis is an essential process for organismal development and homeostasis. Epigenetic regulation of gene expression is critical for stem cell self-renewal and differentiation in normal hematopoiesis. Increasing evidence shows that disrupting the balance between self-renewal and cell fate decisions can give rise to hematological diseases such as bone marrow failure and leukemia. Consequently, next-generation sequencing studies have identified various aberrations in histone modifications, DNA methylation, RNA splicing, and RNA modifications in hematologic diseases. Favorable outcomes after targeting epigenetic regulators during disease states have further emphasized their importance in hematological malignancy. However, these targeted therapies are only effective in some patients, suggesting that further research is needed to decipher the complexity of epigenetic regulation during hematopoiesis. In this review, an update on the impact of the epigenome on normal hematopoiesis, disease initiation and progression, and current therapeutic advancements will be discussed.
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Affiliation(s)
| | - Esther A. Obeng
- Department of Oncology, St Jude Children’s Research Hospital, Memphis, TN, United States
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6
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Kaplánek R, Kejík Z, Hajduch J, Veselá K, Kučnirová K, Skaličková M, Venhauerová A, Hosnedlová B, Hromádka R, Dytrych P, Novotný P, Abramenko N, Antonyová V, Hoskovec D, Babula P, Masařík M, Martásek P, Jakubek M. TET protein inhibitors: Potential and limitations. Biomed Pharmacother 2023; 166:115324. [PMID: 37598475 DOI: 10.1016/j.biopha.2023.115324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/31/2023] [Accepted: 08/10/2023] [Indexed: 08/22/2023] Open
Abstract
TET proteins (methylcytosine dioxygenases) play an important role in the regulation of gene expression. Dysregulation of their activity is associated with many serious pathogenic states such as oncological diseases. Regulation of their activity by specific inhibitors could represent a promising therapeutic strategy. Therefore, this review describes various types of TET protein inhibitors in terms of their inhibitory mechanism and possible applicability. The potential and possible limitations of this approach are thoroughly discussed in the context of TET protein functionality in living systems. Furthermore, possible therapeutic strategies based on the inhibition of TET proteins are presented and evaluated, especially in the field of oncological diseases.
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Affiliation(s)
- Robert Kaplánek
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Zdeněk Kejík
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Jan Hajduch
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Kateřina Veselá
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Kateřina Kučnirová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Markéta Skaličková
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Anna Venhauerová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Božena Hosnedlová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Róbert Hromádka
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Petr Dytrych
- 1st Department of Surgery-Department of Abdominal, Thoracic Surgery and Traumatology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 121 08 Prague, Czech Republic
| | - Petr Novotný
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Nikita Abramenko
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Veronika Antonyová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - David Hoskovec
- 1st Department of Surgery-Department of Abdominal, Thoracic Surgery and Traumatology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 121 08 Prague, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
| | - Michal Masařík
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic; Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
| | - Pavel Martásek
- Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic.
| | - Milan Jakubek
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic.
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7
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Zhang X, Zhang Y, Wang C, Wang X. TET (Ten-eleven translocation) family proteins: structure, biological functions and applications. Signal Transduct Target Ther 2023; 8:297. [PMID: 37563110 PMCID: PMC10415333 DOI: 10.1038/s41392-023-01537-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 05/24/2023] [Accepted: 06/05/2023] [Indexed: 08/12/2023] Open
Abstract
Ten-eleven translocation (TET) family proteins (TETs), specifically, TET1, TET2 and TET3, can modify DNA by oxidizing 5-methylcytosine (5mC) iteratively to yield 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC), and 5-carboxycytosine (5caC), and then two of these intermediates (5fC and 5caC) can be excised and return to unmethylated cytosines by thymine-DNA glycosylase (TDG)-mediated base excision repair. Because DNA methylation and demethylation play an important role in numerous biological processes, including zygote formation, embryogenesis, spatial learning and immune homeostasis, the regulation of TETs functions is complicated, and dysregulation of their functions is implicated in many diseases such as myeloid malignancies. In addition, recent studies have demonstrated that TET2 is able to catalyze the hydroxymethylation of RNA to perform post-transcriptional regulation. Notably, catalytic-independent functions of TETs in certain biological contexts have been identified, further highlighting their multifunctional roles. Interestingly, by reactivating the expression of selected target genes, accumulated evidences support the potential therapeutic use of TETs-based DNA methylation editing tools in disorders associated with epigenetic silencing. In this review, we summarize recent key findings in TETs functions, activity regulators at various levels, technological advances in the detection of 5hmC, the main TETs oxidative product, and TETs emerging applications in epigenetic editing. Furthermore, we discuss existing challenges and future directions in this field.
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Affiliation(s)
- Xinchao Zhang
- Department of Pathology, Ruijin Hospital and College of Basic Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yue Zhang
- Department of Pathology, Ruijin Hospital and College of Basic Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chaofu Wang
- Department of Pathology, Ruijin Hospital and College of Basic Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Xu Wang
- Department of Pathology, Ruijin Hospital and College of Basic Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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8
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Asthana A, Corona A, Shin WJ, Kwak MJ, Gaughan C, Tramontano E, Jung JU, Schobert R, Jha BK, Silverman RH, Biersack B. Analogs of the Catechol Derivative Dynasore Inhibit HIV-1 Ribonuclease H, SARS-CoV-2 nsp14 Exoribonuclease, and Virus Replication. Viruses 2023; 15:1539. [PMID: 37515225 PMCID: PMC10385162 DOI: 10.3390/v15071539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/08/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Viral replication often depends on RNA maturation and degradation processes catalyzed by viral ribonucleases, which are therefore candidate targets for antiviral drugs. Here, we synthesized and studied the antiviral properties of a novel nitrocatechol compound (1c) and other analogs that are structurally related to the catechol derivative dynasore. Interestingly, compound 1c strongly inhibited two DEDD box viral ribonucleases, HIV-1 RNase H and SARS-CoV-2 nsp14 3'-to-5' exoribonuclease (ExoN). While 1c inhibited SARS-CoV-2 ExoN activity, it did not interfere with the mRNA methyltransferase activity of nsp14. In silico molecular docking placed compound 1c in the catalytic pocket of the ExoN domain of nsp14. Finally, 1c inhibited SARS-CoV-2 replication but had no toxicity to human lung adenocarcinoma cells. Given its simple chemical synthesis from easily available starting materials, these results suggest that 1c might be a lead compound for the design of new antiviral compounds that target coronavirus nsp14 ExoN and other viral ribonucleases.
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Affiliation(s)
- Abhishek Asthana
- Cancer Biology, Lerner Research Institute, Cleveland Clinic, 2111 East 96th St, Cleveland, OH 44106, USA
| | - Angela Corona
- Laboratorio di Virologia Molecolare, Dipartimento di Scienze della Vita e Dell'Ambiente, Universitá degli Studi di Cagliari, Cittadella Universitaria di Monserrato SS554, 09042 Monserrato, Italy
| | - Woo-Jin Shin
- Cancer Biology, Lerner Research Institute, Cleveland Clinic, 2111 East 96th St, Cleveland, OH 44106, USA
| | - Mi-Jeong Kwak
- Cancer Biology, Lerner Research Institute, Cleveland Clinic, 2111 East 96th St, Cleveland, OH 44106, USA
| | - Christina Gaughan
- Cancer Biology, Lerner Research Institute, Cleveland Clinic, 2111 East 96th St, Cleveland, OH 44106, USA
| | - Enzo Tramontano
- Laboratorio di Virologia Molecolare, Dipartimento di Scienze della Vita e Dell'Ambiente, Universitá degli Studi di Cagliari, Cittadella Universitaria di Monserrato SS554, 09042 Monserrato, Italy
| | - Jae U Jung
- Cancer Biology, Lerner Research Institute, Cleveland Clinic, 2111 East 96th St, Cleveland, OH 44106, USA
| | - Rainer Schobert
- Organic Chemistry 1, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Babal Kant Jha
- Center for Immunotherapy and Precision Immuno-Oncology, Lerner Research Institute and Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, 2111 East 96th St, Cleveland, OH 44195, USA
| | - Robert H Silverman
- Cancer Biology, Lerner Research Institute, Cleveland Clinic, 2111 East 96th St, Cleveland, OH 44106, USA
| | - Bernhard Biersack
- Organic Chemistry 1, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
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9
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Zerella JR, Homan CC, Arts P, Brown AL, Scott HS, Hahn CN. Transcription factor genetics and biology in predisposition to bone marrow failure and hematological malignancy. Front Oncol 2023; 13:1183318. [PMID: 37377909 PMCID: PMC10291195 DOI: 10.3389/fonc.2023.1183318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Transcription factors (TFs) play a critical role as key mediators of a multitude of developmental pathways, with highly regulated and tightly organized networks crucial for determining both the timing and pattern of tissue development. TFs can act as master regulators of both primitive and definitive hematopoiesis, tightly controlling the behavior of hematopoietic stem and progenitor cells (HSPCs). These networks control the functional regulation of HSPCs including self-renewal, proliferation, and differentiation dynamics, which are essential to normal hematopoiesis. Defining the key players and dynamics of these hematopoietic transcriptional networks is essential to understanding both normal hematopoiesis and how genetic aberrations in TFs and their networks can predispose to hematopoietic disease including bone marrow failure (BMF) and hematological malignancy (HM). Despite their multifaceted and complex involvement in hematological development, advances in genetic screening along with elegant multi-omics and model system studies are shedding light on how hematopoietic TFs interact and network to achieve normal cell fates and their role in disease etiology. This review focuses on TFs which predispose to BMF and HM, identifies potential novel candidate predisposing TF genes, and examines putative biological mechanisms leading to these phenotypes. A better understanding of the genetics and molecular biology of hematopoietic TFs, as well as identifying novel genes and genetic variants predisposing to BMF and HM, will accelerate the development of preventative strategies, improve clinical management and counseling, and help define targeted treatments for these diseases.
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Affiliation(s)
- Jiarna R. Zerella
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
- Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia
| | - Claire C. Homan
- Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia
- Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA, Australia
| | - Peer Arts
- Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia
- Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA, Australia
| | - Anna L. Brown
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
- Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia
- Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA, Australia
| | - Hamish S. Scott
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
- Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia
- Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA, Australia
| | - Christopher N. Hahn
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
- Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia
- Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA, Australia
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10
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Buttigieg MM, Rauh MJ. Clonal Hematopoiesis: Updates and Implications at the Solid Tumor-Immune Interface. JCO Precis Oncol 2023; 7:e2300132. [PMID: 37343201 PMCID: PMC10309572 DOI: 10.1200/po.23.00132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/26/2023] [Accepted: 05/04/2023] [Indexed: 06/23/2023] Open
Abstract
Recent larger-scale studies of patients with cancer and longitudinal population cohorts have revealed how age-related expansions of mutant hematopoietic cells (clonal hematopoiesis [CH]) have differential associations with incident and prevalent cancers and their outcomes. Increasing recognition and deeper understanding of genetic subtypes of CH are yielding insights into the tumor-immune interface that may help to explain the heterogeneous impact of CH on tumorigenesis and treatment. Herein, we update the expanding influence of CH in precision oncology and propose important research and clinical questions to address to effectively manage and harness CH in oncology patients.
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Affiliation(s)
- Marco M Buttigieg
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada
| | - Michael J Rauh
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada
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11
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Xie Z, Zeidan AM. CHIPing away the progression potential of CHIP: A new reality in the making. Blood Rev 2023; 58:101001. [PMID: 35989137 DOI: 10.1016/j.blre.2022.101001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/15/2022]
Abstract
Over the past few years, we have gained a deeper understanding of clonal hematopoiesis of indeterminate potential (CHIP), especially with regard to the epidemiology, clinical sequelae, and mechanical aspects. However, interventional strategies to prevent or delay the potential negative consequences of CHIP remain underdeveloped. In this review, we highlight the latest updates on clonal hematopoiesis research, including molecular mechanisms and clinical implications, with a particular focus on the evolving strategies for the interventions that are being evaluated in ongoing observational and interventional trials. There remains an urgent need to formulate standardized and evidence-based recommendations and guidelines for evaluating and managing individuals with clonal hematopoiesis. In addition, patient-centric endpoints must be defined for clinical trials, which will enable us to continue the robust development of effective preventive strategies and improve clinical outcomes.
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Affiliation(s)
- Zhuoer Xie
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Amer M Zeidan
- Section of Hematology, Department of Internal Medicine, Yale Cancer Center and Smilow Cancer Hospital, Yale University School of Medicine, CT, United States.
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12
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Boila LD, Ghosh S, Bandyopadhyay SK, Jin L, Murison A, Zeng AGX, Shaikh W, Bhowmik S, Muddineni SSNA, Biswas M, Sinha S, Chatterjee SS, Mbong N, Gan OI, Bose A, Chakraborty S, Arruda A, Kennedy JA, Mitchell A, Lechman ER, Banerjee D, Milyavsky M, Minden MD, Dick JE, Sengupta A. KDM6 demethylases integrate DNA repair gene regulation and loss of KDM6A sensitizes human acute myeloid leukemia to PARP and BCL2 inhibition. Leukemia 2023; 37:751-764. [PMID: 36720973 DOI: 10.1038/s41375-023-01833-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/18/2023] [Accepted: 01/23/2023] [Indexed: 02/01/2023]
Abstract
Acute myeloid leukemia (AML) is a heterogeneous, aggressive malignancy with dismal prognosis and with limited availability of targeted therapies. Epigenetic deregulation contributes to AML pathogenesis. KDM6 proteins are histone-3-lysine-27-demethylases that play context-dependent roles in AML. We inform that KDM6-demethylase function critically regulates DNA-damage-repair-(DDR) gene expression in AML. Mechanistically, KDM6 expression is regulated by genotoxic stress, with deficiency of KDM6A-(UTX) and KDM6B-(JMJD3) impairing DDR transcriptional activation and compromising repair potential. Acquired KDM6A loss-of-function mutations are implicated in chemoresistance, although a significant percentage of relapsed-AML has upregulated KDM6A. Olaparib treatment reduced engraftment of KDM6A-mutant-AML-patient-derived xenografts, highlighting synthetic lethality using Poly-(ADP-ribose)-polymerase-(PARP)-inhibition. Crucially, a higher KDM6A expression is correlated with venetoclax tolerance. Loss of KDM6A increased mitochondrial activity, BCL2 expression, and sensitized AML cells to venetoclax. Additionally, BCL2A1 associates with venetoclax resistance, and KDM6A loss was accompanied with a downregulated BCL2A1. Corroborating these results, dual targeting of PARP and BCL2 was superior to PARP or BCL2 inhibitor monotherapy in inducing AML apoptosis, and primary AML cells carrying KDM6A-domain mutations were even more sensitive to the combination. Together, our study illustrates a mechanistic rationale in support of a novel combination therapy for AML based on subtype-heterogeneity, and establishes KDM6A as a molecular regulator for determining therapeutic efficacy.
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Affiliation(s)
- Liberalis Debraj Boila
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Subhadeep Ghosh
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Subham K Bandyopadhyay
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Liqing Jin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Alex Murison
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Andy G X Zeng
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Wasim Shaikh
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Satyaki Bhowmik
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| | | | - Mayukh Biswas
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Irving Cancer Research Center, Columbia University Medical Center, New York, NY, 10032, USA
| | - Sayantani Sinha
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Shankha Subhra Chatterjee
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Nathan Mbong
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Olga I Gan
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Anwesha Bose
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Sayan Chakraborty
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India
| | - Andrea Arruda
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - James A Kennedy
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada.,Division of Medical Oncology and Hematology, Department of Medicine, University Health Network, Toronto, ON, M5G 2C4, Canada.,Department of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Amanda Mitchell
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Eric R Lechman
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Debasis Banerjee
- Park Clinic, Gorky Terrace and Ramakrishna Mission Seva Pratisthan, Kolkata, 700017, West Bengal, India
| | - Michael Milyavsky
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Mark D Minden
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada.,Division of Medical Oncology and Hematology, Department of Medicine, University Health Network, Toronto, ON, M5G 2C4, Canada.,Department of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
| | - John E Dick
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 1L7, Canada. .,Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada.
| | - Amitava Sengupta
- Stem Cell & Leukemia Lab, CSIR-Indian Institute of Chemical Biology, IICB-Translational Research Unit of Excellence, Salt Lake, Kolkata, 700091, West Bengal, India. .,Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India. .,CSIR-IICB-Cancer Biology & Inflammatory Disorder Division, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India.
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13
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Palei S, Weisner J, Vogt M, Gontla R, Buchmuller B, Ehrt C, Grabe T, Kleinbölting S, Müller M, Clever GH, Rauh D, Summerer D. A high-throughput effector screen identifies a novel small molecule scaffold for inhibition of ten-eleven translocation dioxygenase 2. RSC Med Chem 2022; 13:1540-1548. [PMID: 36545435 PMCID: PMC9749932 DOI: 10.1039/d2md00186a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/29/2022] [Indexed: 12/24/2022] Open
Abstract
Ten-eleven translocation dioxygenases (TETs) are the erasers of 5-methylcytosine (mC), the central epigenetic regulator of mammalian DNA. TETs convert mC to three oxidized derivatives with unique physicochemical properties and inherent regulatory potential, and it initializes active demethylation by the base excision repair pathway. Potent small molecule inhibitors would be useful tools to study TET functions by conditional control. To facilitate the discovery of such tools, we here report a high-throughput screening pipeline and its application to screen and validate 31.5k compounds for inhibition of TET2. Using a homogenous fluorescence assay, we discover a novel quinoline-based scaffold that we further validate with an orthogonal semi-high throughput MALDI-MS assay for direct monitoring of substrate turnover. Structure-activity relationship (SAR) studies involving >20 derivatives of this scaffold led to the identification of optimized inhibitors, and together with computational studies suggested a plausible model for its mode of action.
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Affiliation(s)
- Shubhendu Palei
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Jörn Weisner
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Melina Vogt
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Rajesh Gontla
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Benjamin Buchmuller
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Christiane Ehrt
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Tobias Grabe
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Silke Kleinbölting
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Matthias Müller
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Guido H Clever
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Daniel Rauh
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
| | - Daniel Summerer
- Department of Chemistry and Chemical Biology, TU Dortmund University and, Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) Otto-Hahn Str. 4a 44227 Dortmund Germany
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14
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Hu L, Zhang X, Li H, Lin S, Zang S. Targeting TET2 as a Therapeutic Approach for Angioimmunoblastic T Cell Lymphoma. Cancers (Basel) 2022; 14:cancers14225699. [PMID: 36428791 PMCID: PMC9688210 DOI: 10.3390/cancers14225699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/22/2022] Open
Abstract
Angioimmunoblastic T-cell lymphoma (AITL), a type of malignant lymphoma with unique genomic aberrations, significant clinicopathological features, and poor prognosis, is characterized by immune system dysregulation. Recent sequencing studies have identified recurrent mutations and interactions in tet methylcytosine dioxygenase 2 (TET2), ras homology family member A (RHOA), DNA methyltransferase 3 alpha (DNMT3A), and mitochondrial isocitrate dehydrogenase II (IDH2). Notably, since B-cell lymphomas are frequently observed along with AITL, this review first summarizes its controversial mechanisms based on traditional and recent views. Epigenetic regulation represented by TET2 plays an increasingly important role in understanding the multi-step and multi-lineage tumorigenesis of AITL, providing new research directions and treatment strategies for patients with AITL. Here, we review the latest advances in our understanding of AITL and highlight relevant issues that have yet to be addressed in clinical practice.
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Affiliation(s)
- Lina Hu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xuanye Zhang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Huifeng Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Suxia Lin
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Shengbing Zang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- Correspondence: ; Tel.: +86-13559131526
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15
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Role of TET dioxygenases in the regulation of both normal and pathological hematopoiesis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:294. [PMID: 36203205 PMCID: PMC9540719 DOI: 10.1186/s13046-022-02496-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 09/19/2022] [Indexed: 11/06/2022]
Abstract
The family of ten-eleven translocation dioxygenases (TETs) consists of TET1, TET2, and TET3. Although all TETs are expressed in hematopoietic tissues, only TET2 is commonly found to be mutated in age-related clonal hematopoiesis and hematopoietic malignancies. TET2 mutation causes abnormal epigenetic landscape changes and results in multiple stages of lineage commitment/differentiation defects as well as genetic instability in hematopoietic stem/progenitor cells (HSPCs). TET2 mutations are founder mutations (first hits) in approximately 40–50% of cases of TET2-mutant (TET2MT) hematopoietic malignancies and are later hits in the remaining cases. In both situations, TET2MT collaborates with co-occurring mutations to promote malignant transformation. In TET2MT tumor cells, TET1 and TET3 partially compensate for TET2 activity and contribute to the pathogenesis of TET2MT hematopoietic malignancies. Here we summarize the most recent research on TETs in regulating of both normal and pathogenic hematopoiesis. We review the concomitant mutations and aberrant signals in TET2MT malignancies. We also discuss the molecular mechanisms by which concomitant mutations and aberrant signals determine lineage commitment in HSPCs and the identity of hematopoietic malignancies. Finally, we discuss potential strategies to treat TET2MT hematopoietic malignancies, including reverting the methylation state of TET2 target genes and targeting the concomitant mutations and aberrant signals.
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16
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Tet2 helps blood cells balance in air. Blood 2022; 140:1186-1187. [PMID: 36107458 PMCID: PMC9479037 DOI: 10.1182/blood.2022017532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 07/03/2022] [Indexed: 11/20/2022] Open
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17
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Muylaert C, Van Hemelrijck LA, Maes A, De Veirman K, Menu E, Vanderkerken K, De Bruyne E. Aberrant DNA methylation in multiple myeloma: A major obstacle or an opportunity? Front Oncol 2022; 12:979569. [PMID: 36059621 PMCID: PMC9434119 DOI: 10.3389/fonc.2022.979569] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022] Open
Abstract
Drug resistance (DR) of cancer cells leading to relapse is a huge problem nowadays to achieve long-lasting cures for cancer patients. This also holds true for the incurable hematological malignancy multiple myeloma (MM), which is characterized by the accumulation of malignant plasma cells in the bone marrow (BM). Although new treatment approaches combining immunomodulatory drugs, corticosteroids, proteasome inhibitors, alkylating agents, and monoclonal antibodies have significantly improved median life expectancy, MM remains incurable due to the development of DR, with the underlying mechanisms remaining largely ill-defined. It is well-known that MM is a heterogeneous disease, encompassing both genetic and epigenetic aberrations. In normal circumstances, epigenetic modifications, including DNA methylation and posttranslational histone modifications, play an important role in proper chromatin structure and transcriptional regulation. However, in MM, numerous epigenetic defects or so-called ‘epimutations’ have been observed and this especially at the level of DNA methylation. These include genome-wide DNA hypomethylation, locus specific hypermethylation and somatic mutations, copy number variations and/or deregulated expression patterns in DNA methylation modifiers and regulators. The aberrant DNA methylation patterns lead to reduced gene expression of tumor suppressor genes, genomic instability, DR, disease progression, and high-risk disease. In addition, the frequency of somatic mutations in the DNA methylation modifiers seems increased in relapsed patients, again suggesting a role in DR and relapse. In this review, we discuss the recent advances in understanding the involvement of aberrant DNA methylation patterns and/or DNA methylation modifiers in MM development, progression, and relapse. In addition, we discuss their involvement in MM cell plasticity, driving myeloma cells to a cancer stem cell state characterized by a more immature and drug-resistant phenotype. Finally, we briefly touch upon the potential of DNA methyltransferase inhibitors to prevent relapse after treatment with the current standard of care agents and/or new, promising (immuno) therapies.
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18
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Turpin M, Salbert G. 5-methylcytosine turnover: Mechanisms and therapeutic implications in cancer. Front Mol Biosci 2022; 9:976862. [PMID: 36060265 PMCID: PMC9428128 DOI: 10.3389/fmolb.2022.976862] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 07/26/2022] [Indexed: 12/04/2022] Open
Abstract
DNA methylation at the fifth position of cytosine (5mC) is one of the most studied epigenetic mechanisms essential for the control of gene expression and for many other biological processes including genomic imprinting, X chromosome inactivation and genome stability. Over the last years, accumulating evidence suggest that DNA methylation is a highly dynamic mechanism driven by a balance between methylation by DNMTs and TET-mediated demethylation processes. However, one of the main challenges is to understand the dynamics underlying steady state DNA methylation levels. In this review article, we give an overview of the latest advances highlighting DNA methylation as a dynamic cycling process with a continuous turnover of cytosine modifications. We describe the cooperative actions of DNMT and TET enzymes which combine with many additional parameters including chromatin environment and protein partners to govern 5mC turnover. We also discuss how mathematical models can be used to address variable methylation levels during development and explain cell-type epigenetic heterogeneity locally but also at the genome scale. Finally, we review the therapeutic implications of these discoveries with the use of both epigenetic clocks as predictors and the development of epidrugs that target the DNA methylation/demethylation machinery. Together, these discoveries unveil with unprecedented detail how dynamic is DNA methylation during development, underlying the establishment of heterogeneous DNA methylation landscapes which could be altered in aging, diseases and cancer.
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Affiliation(s)
- Marion Turpin
- Sp@rte Team, UMR6290 CNRS, Institute of Genetics and Development of Rennes, Rennes, France
- University of Rennes 1, Rennes, France
| | - Gilles Salbert
- Sp@rte Team, UMR6290 CNRS, Institute of Genetics and Development of Rennes, Rennes, France
- University of Rennes 1, Rennes, France
- *Correspondence: Gilles Salbert,
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19
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Weirath NA, Hurben AK, Chao C, Pujari SS, Cheng T, Liu S, Tretyakova NY. Small Molecule Inhibitors of TET Dioxygenases: Bobcat339 Activity Is Mediated by Contaminating Copper(II). ACS Med Chem Lett 2022; 13:792-798. [PMID: 35586434 PMCID: PMC9109264 DOI: 10.1021/acsmedchemlett.1c00677] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/12/2022] [Indexed: 12/12/2022] Open
Abstract
Ten eleven translocation (TET) dioxygenases 1-3 are non-heme Fe(II) and α-ketoglutarate dependent enzymes that catalyze oxidation of 5-methylcytosine (5mC) in DNA to hydroxymethyl-C, formyl-C, and carboxy-C. This typically leads to gene activation and epigenetic remodeling. Most known inhibitors of TET are α-ketoglutarate mimics that may interfere with other α-ketoglutarate dependent enzymes. Recently, a novel cytosine-based inhibitor of TET, Bobcat339, was reported to have mid-μM inhibitory activity against TET1 and TET2. The molecule is now sold as a TET inhibitor by several vendors. We independently prepared Bobcat339 in our laboratory and observed that it had minimal inhibitory activity against human TET1 and TET2 via a quantitative LC-ESI-MS/MS assay. Furthermore, the inhibitory activity of commercial Bobcat339 preparations was directly correlated with Cu(II) content. We therefore conclude that Bobcat339 alone is not capable of inhibiting TET enzymes at the reported concentrations, and that its activity is enhanced by contaminating Cu(II).
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Affiliation(s)
- Nicholas A. Weirath
- Department of Medicinal Chemistry and Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-147 CCRB, Minneapolis, Minnesota 55455, United States
| | - Alexander K. Hurben
- Department of Medicinal Chemistry and Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-147 CCRB, Minneapolis, Minnesota 55455, United States
| | - Christopher Chao
- Department of Medicinal Chemistry and Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-147 CCRB, Minneapolis, Minnesota 55455, United States
| | - Suresh S. Pujari
- Department of Medicinal Chemistry and Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-147 CCRB, Minneapolis, Minnesota 55455, United States
| | - Tao Cheng
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, Minnesota 55912, United States
| | - Shujun Liu
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, Minnesota 55912, United States
| | - Natalia Y. Tretyakova
- Department of Medicinal Chemistry and Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-147 CCRB, Minneapolis, Minnesota 55455, United States
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20
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Rigo R, Chelbi R, Agopian J, Letard S, Griffon A, Ghamlouch H, Vernerey J, Ladopoulos V, Voisset E, De Sepulveda P, Guittard G, Nunès JA, Bidaut G, Göttgens B, Weber M, Bernard OA, Dubreuil P, Soucie E. TET2 regulates immune tolerance in chronically activated mast cells. JCI Insight 2022; 7:154191. [PMID: 35393954 PMCID: PMC9057605 DOI: 10.1172/jci.insight.154191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/18/2022] [Indexed: 11/17/2022] Open
Abstract
Mutation of the TET2 DNA-hydroxymethylase has been associated with a number of immune pathologies. The disparity in phenotype and clinical presentation among these pathologies leads to questions regarding the role of TET2 mutation in promoting disease evolution in different immune cell types. Here we show that, in primary mast cells, Tet2 expression is induced in response to chronic and acute activation signals. In TET2-deficient mast cells, chronic activation via the oncogenic KITD816V allele associated with mastocytosis, selects for a specific epigenetic signature characterized by hypermethylated DNA regions (HMR) at immune response genes. H3K27ac and transcription factor binding is consistent with priming or more open chromatin at both HMR and non-HMR in proximity to immune genes in these cells, and this signature coincides with increased pathological inflammation signals. HMR are also associated with a subset of immune genes that are direct targets of TET2 and repressed in TET2-deficient cells. Repression of these genes results in immune tolerance to acute stimulation that can be rescued with vitamin C treatment or reiterated with a Tet inhibitor. Overall, our data support a model where TET2 plays a direct role in preventing immune tolerance in chronically activated mast cells, supporting TET2 as a viable target to reprogram the innate immune response for innovative therapies.
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Affiliation(s)
- Riccardo Rigo
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
| | - Rabie Chelbi
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France.,Inovarion, Paris, France
| | - Julie Agopian
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
| | - Sebastien Letard
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
| | - Aurélien Griffon
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
| | - Hussein Ghamlouch
- INSERM, Mixed Research Unit (UMR) 1170, Institut Gustave Roussy, Facility of Medicine, Paris-Sud University, Paris-Saclay University, Equipe Labélisée Ligue Nationale Contre le Cancer, Villejuif, France
| | - Julien Vernerey
- CRCM, Institut Paoli-Calmettes, Inserm, CNRS, Aix Marseille University, Marseille, France
| | - Vasileios Ladopoulos
- Department of Haematology, Cambridge Institute for Medical Research, and.,Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Edwige Voisset
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
| | - Paulo De Sepulveda
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
| | - Geoffrey Guittard
- CRCM, Institut Paoli-Calmettes, Inserm, CNRS, Aix Marseille University, Marseille, France
| | - Jacques A Nunès
- CRCM, Institut Paoli-Calmettes, Inserm, CNRS, Aix Marseille University, Marseille, France
| | - Ghislain Bidaut
- CRCM, Institut Paoli-Calmettes, Inserm, CNRS, Aix Marseille University, Marseille, France
| | - Berthold Göttgens
- Department of Haematology, Cambridge Institute for Medical Research, and.,Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Michael Weber
- CNRS, University of Strasbourg, UMR7242 Biotechnology and Cell Signaling, Illkirch, France
| | - Olivier A Bernard
- INSERM, Mixed Research Unit (UMR) 1170, Institut Gustave Roussy, Facility of Medicine, Paris-Sud University, Paris-Saclay University, Equipe Labélisée Ligue Nationale Contre le Cancer, Villejuif, France
| | - Patrice Dubreuil
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
| | - Erinn Soucie
- Cancer Research Center of Marseille (CRCM), INSERM, CNRS, Aix-Marseille University, Institut Paoli-Calmettes, Equipe Labélisée Ligue Nationale Contre le Cancer, Marseille, France
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21
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Menendez-Gonzalez JB, Rodrigues NP. Exploring the Associations Between Clonal Hematopoiesis of Indeterminate Potential, Myeloid Malignancy, and Atherosclerosis. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2419:73-88. [PMID: 35237959 DOI: 10.1007/978-1-0716-1924-7_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Outgrowth of a mutated hematopoietic stem/progenitor clone and its descendants, also known as clonal hematopoiesis, has long been considered as either a potential forerunner to hematologic malignancy or as a clinically silent phase in leukemia that antedates symptomatic disease. That definition of clonal hematopoiesis has now been expanded to encompass patients who harbor specific genetic/epigenetic mutations that lead to clonal hematopoiesis of indeterminate potential (CHIP) and, with it, a relatively heightened risk for both myeloid malignancy and atherosclerosis during aging. In this review, we provide contemporary insights into the cellular and molecular basis for CHIP and explore the relationship of CHIP to myeloid malignancy and atherosclerosis. We also discuss emerging strategies to explore CHIP biology and clinical targeting of CHIP related malignancy and cardiovascular disease.
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Affiliation(s)
- Juan Bautista Menendez-Gonzalez
- Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.,Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Neil P Rodrigues
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff, UK.
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22
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Abstract
Despite FDA approval of nine new drugs for patients with acute myeloid leukemia (AML) in the United States over the last 4 years, AML remains a major area of unmet medical need among hematologic malignancies. In this review, we discuss the development of promising new molecular targeted approaches for AML, including menin inhibition, novel IDH1/2 inhibitors, and preclinical means to target TET2, ASXL1, and RNA splicing factor mutations. In addition, we review progress in immune targeting of AML through anti-CD47, anti-SIRPα, and anti-TIM-3 antibodies; bispecific and trispecific antibodies; and new cellular therapies in development for AML.
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Affiliation(s)
- Jan Philipp Bewersdorf
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Omar Abdel-Wahab
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Human Oncology and Pathogenesis Program, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
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23
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Włodarczyk M, Nowicka G, Ciebiera M, Ali M, Yang Q, Al-Hendy A. Epigenetic Regulation in Uterine Fibroids-The Role of Ten-Eleven Translocation Enzymes and Their Potential Therapeutic Application. Int J Mol Sci 2022; 23:2720. [PMID: 35269864 PMCID: PMC8910916 DOI: 10.3390/ijms23052720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 02/01/2023] Open
Abstract
Uterine fibroids (UFs) are monoclonal, benign tumors that contain abnormal smooth muscle cells and the accumulation of extracellular matrix (ECM). Although benign, UFs are a major source of gynecologic and reproductive dysfunction, ranging from menorrhagia and pelvic pain to infertility, recurrent miscarriage, and preterm labor. Many risk factors are involved in the pathogenesis of UFs via genetic and epigenetic mechanisms. The latter involving DNA methylation and demethylation reactions provide specific DNA methylation patterns that regulate gene expression. Active DNA demethylation reactions mediated by ten-eleven translocation proteins (TETs) and elevated levels of 5-hydroxymethylcytosine have been suggested to be involved in UF formation. This review paper summarizes the main findings regarding the function of TET enzymes and their activity dysregulation that may trigger the development of UFs. Understanding the role that epigenetics plays in the pathogenesis of UFs may possibly lead to a new type of pharmacological fertility-sparing treatment method.
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Affiliation(s)
- Marta Włodarczyk
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland;
- Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Grażyna Nowicka
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland;
- Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Michał Ciebiera
- The Center of Postgraduate Medical Education, Second Department of Obstetrics and Gynecology, 01-809 Warsaw, Poland;
| | - Mohamed Ali
- Clinical Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt;
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL 60637, USA; (Q.Y.); (A.A.-H.)
| | - Qiwei Yang
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL 60637, USA; (Q.Y.); (A.A.-H.)
| | - Ayman Al-Hendy
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL 60637, USA; (Q.Y.); (A.A.-H.)
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24
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Guan Y, Hasipek M, Jiang D, Tiwari AD, Grabowski DR, Pagliuca S, Kongkiatkamon S, Patel B, Singh S, Parker Y, LaFramboise T, Lindner D, Sekeres MA, Mian OY, Saunthararajah Y, Maciejewski JP, Jha BK. Eltrombopag inhibits TET dioxygenase to contribute to hematopoietic stem cell expansion in aplastic anemia. J Clin Invest 2022; 132:e149856. [PMID: 35085104 PMCID: PMC8843742 DOI: 10.1172/jci149856] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 01/04/2022] [Indexed: 11/18/2022] Open
Abstract
Eltrombopag, an FDA-approved non-peptidyl thrombopoietin receptor agonist, is clinically used for the treatment of aplastic anemia, a disease characterized by hematopoietic stem cell failure and pancytopenia, to improve platelet counts and stem cell function. Eltrombopag treatment results in a durable trilineage hematopoietic expansion in patients. Some of the eltrombopag hematopoietic activity has been attributed to its off-target effects, including iron chelation properties. However, the mechanism of action for its full spectrum of clinical effects is still poorly understood. Here, we report that eltrombopag bound to the TET2 catalytic domain and inhibited its dioxygenase activity, which was independent of its role as an iron chelator. The DNA demethylating enzyme TET2, essential for hematopoietic stem cell differentiation and lineage commitment, is frequently mutated in myeloid malignancies. Eltrombopag treatment expanded TET2-proficient normal hematopoietic stem and progenitor cells, in part because of its ability to mimic loss of TET2 with simultaneous thrombopoietin receptor activation. On the contrary, TET inhibition in TET2 mutant malignant myeloid cells prevented neoplastic clonal evolution in vitro and in vivo. This mechanism of action may offer a restorative therapeutic index and provide a scientific rationale to treat selected patients with TET2 mutant-associated or TET deficiency-associated myeloid malignancies.
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Affiliation(s)
- Yihong Guan
- Department of Translational Hematology and Oncology Research and
| | - Metis Hasipek
- Department of Translational Hematology and Oncology Research and
| | - Dongxu Jiang
- Department of Translational Hematology and Oncology Research and
| | - Anand D. Tiwari
- Department of Translational Hematology and Oncology Research and
| | | | - Simona Pagliuca
- Department of Translational Hematology and Oncology Research and
| | | | - Bhumika Patel
- Leukemia Program, Department of Hematologic Oncology and Blood Disorders, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Salendra Singh
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Yvonne Parker
- Department of Translational Hematology and Oncology Research and
| | - Thomas LaFramboise
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Daniel Lindner
- Department of Translational Hematology and Oncology Research and
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, Ohio, USA
- Developmental Therapeutics, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
| | - Mikkael A. Sekeres
- Leukemia Program, Department of Hematologic Oncology and Blood Disorders, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Omar Y. Mian
- Department of Translational Hematology and Oncology Research and
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, Ohio, USA
- Developmental Therapeutics, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
| | - Yogen Saunthararajah
- Department of Translational Hematology and Oncology Research and
- Leukemia Program, Department of Hematologic Oncology and Blood Disorders, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, Ohio, USA
- Developmental Therapeutics, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
| | - Jaroslaw P. Maciejewski
- Department of Translational Hematology and Oncology Research and
- Leukemia Program, Department of Hematologic Oncology and Blood Disorders, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, Ohio, USA
- Developmental Therapeutics, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
| | - Babal K. Jha
- Department of Translational Hematology and Oncology Research and
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, Ohio, USA
- Developmental Therapeutics, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
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25
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Combining Isocitrate Dehydrogenase Inhibitors With Existing Regimens in Acute Myeloid Leukemia. Cancer J 2022; 28:21-28. [DOI: 10.1097/ppo.0000000000000570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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26
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Diamantopoulos PT, Viniou NA. Atypical Chronic Myelogenous Leukemia, BCR-ABL1 Negative: Diagnostic Criteria and Treatment Approaches. Front Oncol 2021; 11:722507. [PMID: 34868917 PMCID: PMC8635713 DOI: 10.3389/fonc.2021.722507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 11/02/2021] [Indexed: 11/25/2022] Open
Abstract
Atypical chronic myelogenous leukemia (aCML), BCR/ABL1 negative is a rare myelodysplastic/myeloproliferative neoplasm, usually manifested with hyperleukocytosis without monocytosis or basophilia, organomegaly, and marked dysgranulopoiesis. In this review, we will discuss the classification and diagnostic criteria of aCML, as these have been formulated during the past 30 years, with a focus on the recent advances in the molecular characterization of the disease. Although this entity does not have a definitive molecular profile, its molecular characterization has contributed to a better understanding and more accurate classification and diagnosis of aCML. At the same time, it has facilitated the identification of adverse prognostic factors and the stratification of patients according to their risk for leukemic transformation. What is more, the molecular characterization of the disease has expanded our therapeutic choices, thoroughly presented and analyzed in this review article.
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Affiliation(s)
- Panagiotis T. Diamantopoulos
- First Department of Internal Medicine, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
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27
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TET2 mutations as a part of DNA dioxygenase deficiency in myelodysplastic syndromes. Blood Adv 2021; 6:100-107. [PMID: 34768283 PMCID: PMC8753204 DOI: 10.1182/bloodadvances.2021005418] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/26/2021] [Indexed: 11/25/2022] Open
Abstract
5-hydroxymethylcytosine and TET2 messenger RNA (mRNA) downregulation are common in myelodysplastic syndromes irrespective of TET2 mutations. TET3 mRNA expression levels are associated with distinct clinical outcomes in myelodysplastic syndromes with and without TET2 mutations.
Decrease in DNA dioxygenase activity generated by TET2 gene family is crucial in myelodysplastic syndromes (MDS). The general downregulation of 5-hydroxymethylcytosine (5-hmC) argues for a role of DNA demethylation in MDS beyond TET2 mutations, which albeit frequent, do not convey any prognostic significance. We investigated TETs expression to identify factors which can modulate the impact of mutations and thus 5-hmC levels on clinical phenotypes and prognosis of MDS patients. DNA/RNA-sequencing and 5-hmC data were collected from 1665 patients with MDS and 91 controls. Irrespective of mutations, a significant fraction of MDS patients exhibited lower TET2 expression, whereas 5-hmC levels were not uniformly decreased. In searching for factors explaining compensatory mechanisms, we discovered that TET3 was upregulated in MDS and inversely correlated with TET2 expression in wild-type cases. Although TET2 was reduced across all age groups, TET3 levels were increased in a likely feedback mechanism induced by TET2 dysfunction. This inverse relationship of TET2 and TET3 expression also corresponded to the expression of L-2-hydroxyglutarate dehydrogenase, involved in agonist/antagonist substrate metabolism. Importantly, elevated TET3 levels influenced the clinical phenotype of TET2 deficiency whereby the lack of compensation by TET3 (low TET3 expression) was associated with poor outcomes of TET2 mutant carriers.
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28
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Jiang Y, Gao SJ, Soubise B, Douet-Guilbert N, Liu ZL, Troadec MB. TP53 in Myelodysplastic Syndromes. Cancers (Basel) 2021; 13:cancers13215392. [PMID: 34771553 PMCID: PMC8582368 DOI: 10.3390/cancers13215392] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/18/2021] [Accepted: 10/21/2021] [Indexed: 01/03/2023] Open
Abstract
Simple Summary The importance of gene variants in the prognosis of myelodysplastic syndromes (MDSs) has been repeatedly reported in recent years. Especially, TP53 mutations are independently associated with a higher risk category, resistance to conventional therapies, rapid transformation to leukemia, and a poor outcome. In the review, we discuss the features of monoallelic and biallelic TP53 mutations within MDS, the carcinogenic mechanisms, and the predictive value of TP53 variants in current standard treatments including hypomethylating agents, allogeneic hematopoietic stem cell transplantation, and lenalidomide, as well as the latest progress in TP53-targeted therapy strategies in MDS. Abstract Myelodysplastic syndromes (MDSs) are heterogeneous for their morphology, clinical characteristics, survival of patients, and evolution to acute myeloid leukemia. Different prognostic scoring systems including the International Prognostic Scoring System (IPSS), the Revised IPSS, the WHO Typed Prognostic Scoring System, and the Lower-Risk Prognostic Scoring System have been introduced for categorizing the highly variable clinical outcomes. However, not considered by current MDS prognosis classification systems, gene variants have been identified for their contribution to the clinical heterogeneity of the disease and their impact on the prognosis. Notably, TP53 mutation is independently associated with a higher risk category, resistance to conventional therapies, rapid transformation to leukemia, and a poor outcome. Herein, we discuss the features of monoallelic and biallelic TP53 mutations within MDS, their corresponding carcinogenic mechanisms, their predictive value in current standard treatments including hypomethylating agents, allogeneic hematopoietic stem cell transplantation, and lenalidomide, together with the latest progress in TP53-targeted therapy strategies, especially MDS clinical trial data.
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Affiliation(s)
- Yan Jiang
- Department of Hematology, The First Hospital of Jilin University, Changchun 130021, China; (Y.J.); (S.-J.G.)
- Univ Brest, Inserm, EFS, UMR 1078, GGB, F-29200 Brest, France; (B.S.); (N.D.-G.)
| | - Su-Jun Gao
- Department of Hematology, The First Hospital of Jilin University, Changchun 130021, China; (Y.J.); (S.-J.G.)
| | - Benoit Soubise
- Univ Brest, Inserm, EFS, UMR 1078, GGB, F-29200 Brest, France; (B.S.); (N.D.-G.)
| | - Nathalie Douet-Guilbert
- Univ Brest, Inserm, EFS, UMR 1078, GGB, F-29200 Brest, France; (B.S.); (N.D.-G.)
- CHRU Brest, Service de Génétique, Laboratoire de Génétique Chromosomique, F-29200 Brest, France
| | - Zi-Ling Liu
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
- Correspondence: (Z.-L.L.); (M.-B.T.); Tel.: +86-139-43-00-16-00 (Z.-L.L.); +33-2-98-01-64-55 (M.-B.T.)
| | - Marie-Bérengère Troadec
- Univ Brest, Inserm, EFS, UMR 1078, GGB, F-29200 Brest, France; (B.S.); (N.D.-G.)
- CHRU Brest, Service de Génétique, Laboratoire de Génétique Chromosomique, F-29200 Brest, France
- Correspondence: (Z.-L.L.); (M.-B.T.); Tel.: +86-139-43-00-16-00 (Z.-L.L.); +33-2-98-01-64-55 (M.-B.T.)
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29
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TET3 promotes AML growth and epigenetically regulates glucose metabolism and leukemic stem cell associated pathways. Leukemia 2021; 36:416-425. [PMID: 34462525 DOI: 10.1038/s41375-021-01390-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/07/2021] [Accepted: 08/17/2021] [Indexed: 11/09/2022]
Abstract
Acute myeloid leukemia (AML) is considered a poor prognosis malignancy where patients exhibit altered glucose metabolism and stem cell signatures that contribute to AML growth and maintenance. Here, we report that the epigenetic factor, Ten-Eleven Translocation 3 (TET3) dioxygenase is overexpressed in AML patients and functionally validated human leukemic stem cells (LSCs), is required for leukemic growth by virtue of its regulation of glucose metabolism in AML cells. In human AML cells, TET3 maintains 5-hydroxymethylcytosine (5hmC) epigenetic marks and expression of early myeloid progenitor program, critical glucose metabolism and STAT5A signaling pathway genes, which also positively correlate with TET3 expression in AML patients. Consequently, TET3 depletion impedes hexokinase activity and L-Lactate production in AML cells. Conversely, overexpression of TET3 in healthy human hematopoietic stem progenitors (HSPCs) upregulates the expression of glucose metabolism, STAT5A signaling and AML associated genes, and impairs normal HSPC lineage differentiation in vitro. Finally, TET3 depletion renders AML cells highly sensitive to blockage of the TET3 downstream pathways glycolysis and STAT5 signaling via the combination of 2-Deoxy-D-glucose and STAT5 inhibitor which preferentially targets AML cells but spares healthy CD34+ HSPCs.
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30
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Olson TL, Cheon H, Xing JC, Olson KC, Paila U, Hamele CE, Neelamraju Y, Shemo BC, Schmachtenberg M, Sundararaman SK, Toro MF, Keller CA, Farber EA, Onengut-Gumuscu S, Garrett-Bakelman FE, Hardison RC, Feith DJ, Ratan A, Loughran TP. Frequent somatic TET2 mutations in chronic NK-LGL leukemia with distinct patterns of cytopenias. Blood 2021; 138:662-673. [PMID: 33786584 PMCID: PMC8394905 DOI: 10.1182/blood.2020005831] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 03/30/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic natural killer large granular lymphocyte (NK-LGL) leukemia, also referred to as chronic lymphoproliferative disorder of NK cells, is a rare disorder defined by prolonged expansion of clonal NK cells. Similar prevalence of STAT3 mutations in chronic T-LGL and NK-LGL leukemia is suggestive of common pathogenesis. We undertook whole-genome sequencing to identify mutations unique to NK-LGL leukemia. The results were analyzed to develop a resequencing panel that was applied to 58 patients. Phosphatidylinositol 3-kinase pathway gene mutations (PIK3CD/PIK3AP1) and TNFAIP3 mutations were seen in 5% and 10% of patients, respectively. TET2 was exceptional in that mutations were present in 16 (28%) of 58 patient samples, with evidence that TET2 mutations can be dominant and exclusive to the NK compartment. Reduced-representation bisulfite sequencing revealed that methylation patterns were significantly altered in TET2 mutant samples. The promoter of TET2 and that of PTPRD, a negative regulator of STAT3, were found to be methylated in additional cohort samples, largely confined to the TET2 mutant group. Mutations in STAT3 were observed in 19 (33%) of 58 patient samples, 7 of which had concurrent TET2 mutations. Thrombocytopenia and resistance to immunosuppressive agents were uniquely observed in those patients with only TET2 mutation (Games-Howell post hoc test, P = .0074; Fisher's exact test, P = .00466). Patients with STAT3 mutation, inclusive of those with TET2 comutation, had lower hematocrit, hemoglobin, and absolute neutrophil count compared with STAT3 wild-type patients (Welch's t test, P ≤ .015). We present the discovery of TET2 mutations in chronic NK-LGL leukemia and evidence that it identifies a unique molecular subtype.
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Affiliation(s)
- Thomas L Olson
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - HeeJin Cheon
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
- Medical Scientist Training Program, University of Virginia School of Medicine, Charlottesville, VA
| | - Jeffrey C Xing
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
- Medical Scientist Training Program, University of Virginia School of Medicine, Charlottesville, VA
| | - Kristine C Olson
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - Umadevi Paila
- Center for Public Health Genomics, University of Virginia, Charlottesville; VA
| | - Cait E Hamele
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - Yaseswini Neelamraju
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA
| | - Bryna C Shemo
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - Matt Schmachtenberg
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - Shriram K Sundararaman
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - Mariella F Toro
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - Cheryl A Keller
- Department of Biochemistry and Molecular Biology, Center for Computational Biology & Bioinformatics, The Pennsylvania State University, State College, PA; and
| | - Emily A Farber
- Center for Public Health Genomics, University of Virginia, Charlottesville; VA
| | | | - Francine E Garrett-Bakelman
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA
| | - Ross C Hardison
- Department of Biochemistry and Molecular Biology, Center for Computational Biology & Bioinformatics, The Pennsylvania State University, State College, PA; and
| | - David J Feith
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
| | - Aakrosh Ratan
- Center for Public Health Genomics, University of Virginia, Charlottesville; VA
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA
| | - Thomas P Loughran
- University of Virginia Cancer Center, Charlottesville, VA
- Division of Hematology/Oncology, Department of Medicine, and
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31
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Tiwari AD, Guan Y, Grabowski DR, Maciejewski JP, Jha BK, Phillips JG. SAR insights into TET2 catalytic domain inhibition: Synthesis of 2-Hydroxy-4-Methylene-pentanedicarboxylates. Bioorg Med Chem 2021; 39:116141. [PMID: 33894507 DOI: 10.1016/j.bmc.2021.116141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 12/20/2022]
Abstract
The TET (Ten-Eleven Translocation) dioxygenase enzyme family comprising 3 members, TET1-3, play key roles in DNA demethylation. These processes regulate transcription programs that determine cell lineage, survival, proliferation, and differentiation. The impetus for our investigations described here is derived from the need to develop illuminating small molecule probes for TET enzymes with cellular activity and specificity. The studies were done so in the context of the importance of TET2 in the hematopoietic system and the preponderance of loss of function somatic TET2 mutations in myeloid diseases. We have identified that 2-hydroxy-4-methylene-pentanedicarboxylic acid 2a reversibly competes with the co-substrate α-KG in the TET2 catalytic domain and inhibits the dioxygenase activity with an IC50 = 11.0 ± 0.9 μM at 10 μM α-KG in a cell free system and binds in the TET2 catalytic domain with Kd = 0.3 ± 0.12 μM.
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Affiliation(s)
- Anand D Tiwari
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195, USA.
| | - Yihong Guan
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195, USA
| | - Dale R Grabowski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195, USA
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195, USA; Cleveland Clinic Lerner College of Medicine, Cleveland, OH 44195, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Babal K Jha
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195, USA; Cleveland Clinic Lerner College of Medicine, Cleveland, OH 44195, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
| | - James G Phillips
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA.
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32
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Gurnari C, Pagliuca S, Visconte V. The Interactome between Metabolism and Gene Mutations in Myeloid Malignancies. Int J Mol Sci 2021; 22:ijms22063135. [PMID: 33808599 PMCID: PMC8003366 DOI: 10.3390/ijms22063135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/10/2021] [Accepted: 03/16/2021] [Indexed: 12/19/2022] Open
Abstract
The study of metabolic deregulation in myeloid malignancies has led to the investigation of metabolic-targeted therapies considering that cells undergoing leukemic transformation have excessive energy demands for growth and proliferation. However, the most difficult challenge in agents targeting metabolism is to determine a window of therapeutic opportunities between normal and neoplastic cells, considering that all or most of the metabolic pathways important for cancer ontogeny may also regulate physiological cell functions. Targeted therapies have used the properties of leukemic cells to produce altered metabolic products when mutated. This is the case of IDH1/2 mutations generating the abnormal conversion of α-ketoglutarate (KG) to 2-hydroxyglutarate, an oncometabolite inhibiting KG-dependent enzymes, such as the TET family of genes (pivotal in characterizing leukemia cells either by mutations, e.g., TET2, or by altered expression, e.g., TET1/2/3). Additional observations derive from the high sensitivity of leukemic cells to oxidative phosphorylation and its amelioration using BCL-2 inhibitors (Venetoclax) or by disrupting the mitochondrial respiration. More recently, nicotinamide metabolism has been described to mediate resistance to Venetoclax in patients with acute myeloid leukemia. Herein, we will provide an overview of the latest research on the link between metabolic pathways interactome and leukemogenesis with a comprehensive analysis of the metabolic consequences of driver genetic lesions and exemplificative druggable pathways.
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Affiliation(s)
- Carmelo Gurnari
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (C.G.); (S.P.)
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Rome, Italy
- Immunology, Molecular Medicine and Applied Biotechnology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Simona Pagliuca
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (C.G.); (S.P.)
| | - Valeria Visconte
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (C.G.); (S.P.)
- Correspondence:
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33
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Guan Y, Hasipek M, Tiwari AD, Maciejewski JP, Jha BK. TET-dioxygenase deficiency in oncogenesis and its targeting for tumor-selective therapeutics. Semin Hematol 2021; 58:27-34. [PMID: 33509440 PMCID: PMC7938524 DOI: 10.1053/j.seminhematol.2020.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/04/2020] [Accepted: 12/19/2020] [Indexed: 02/08/2023]
Abstract
TET2 is one of the most frequently mutated genes in myeloid neoplasms. TET2 loss-of-function perturbs myeloid differentiation and causes clonal expansion. Despite extensive knowledge regarding biochemical mechanisms underlying distorted myeloid differentiation, targeted therapies are lagging. Here we review known biochemical mechanisms and candidate therapies that emerge from this. Specifically, we discuss the potential utility of vitamin C to compensate for TET-dioxygenase deficiency, to thereby restore the biochemical function. An alternative approach exploits the TET-deficient state for synthetic lethality, exploiting the fact that a minimum level of TET-dioxygenase activity is required for cell survival, rendering TET2-mutant malignant cells selectively vulnerable to inhibitors of TET-function.
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Affiliation(s)
- Yihong Guan
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Metis Hasipek
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Anand D Tiwari
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Babal K Jha
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH.
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