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Lopes BA, Poubel CP, Teixeira CE, Caye-Eude A, Cavé H, Meyer C, Marschalek R, Boroni M, Emerenciano M. Novel Diagnostic and Therapeutic Options for KMT2A-Rearranged Acute Leukemias. Front Pharmacol 2022; 13:749472. [PMID: 35734412 PMCID: PMC9208280 DOI: 10.3389/fphar.2022.749472] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 05/04/2022] [Indexed: 11/24/2022] Open
Abstract
The KMT2A (MLL) gene rearrangements (KMT2A-r) are associated with a diverse spectrum of acute leukemias. Although most KMT2A-r are restricted to nine partner genes, we have recently revealed that KMT2A-USP2 fusions are often missed during FISH screening of these genetic alterations. Therefore, complementary methods are important for appropriate detection of any KMT2A-r. Here we use a machine learning model to unravel the most appropriate markers for prediction of KMT2A-r in various types of acute leukemia. A Random Forest and LightGBM classifier was trained to predict KMT2A-r in patients with acute leukemia. Our results revealed a set of 20 genes capable of accurately estimating KMT2A-r. The SKIDA1 (AUC: 0.839; CI: 0.799-0.879) and LAMP5 (AUC: 0.746; CI: 0.685-0.806) overexpression were the better markers associated with KMT2A-r compared to CSPG4 (also named NG2; AUC: 0.722; CI: 0.659-0.784), regardless of the type of acute leukemia. Of importance, high expression levels of LAMP5 estimated the occurrence of all KMT2A-USP2 fusions. Also, we performed drug sensitivity analysis using IC50 data from 345 drugs available in the GDSC database to identify which ones could be used to treat KMT2A-r leukemia. We observed that KMT2A-r cell lines were more sensitive to 5-Fluorouracil (5FU), Gemcitabine (both antimetabolite chemotherapy drugs), WHI-P97 (JAK-3 inhibitor), Foretinib (MET/VEGFR inhibitor), SNX-2112 (Hsp90 inhibitor), AZD6482 (PI3Kβ inhibitor), KU-60019 (ATM kinase inhibitor), and Pevonedistat (NEDD8-activating enzyme (NAE) inhibitor). Moreover, IC50 data from analyses of ex-vivo drug sensitivity to small-molecule inhibitors reveals that Foretinib is a promising drug option for AML patients carrying FLT3 activating mutations. Thus, we provide novel and accurate options for the diagnostic screening and therapy of KMT2A-r leukemia, regardless of leukemia subtype.
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Affiliation(s)
- Bruno A. Lopes
- Acute Leukemia RioSearch Group, Division of Clinical Research and Technological Development, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Caroline Pires Poubel
- Acute Leukemia RioSearch Group, Division of Clinical Research and Technological Development, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
- Bioinformatics and Computational Biology Laboratory, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Cristiane Esteves Teixeira
- Bioinformatics and Computational Biology Laboratory, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Aurélie Caye-Eude
- Département de Génétique, UF de Génétique moléculaire, Assistance Publique des Hópitaux de Paris (AP-HP), Hópital Robert Debré, Paris, France
- INSERM UMR_S1131, Institut de Recherche Saint-Louis, Université de Paris-Cité, Paris, France
| | - Hélène Cavé
- Département de Génétique, UF de Génétique moléculaire, Assistance Publique des Hópitaux de Paris (AP-HP), Hópital Robert Debré, Paris, France
- INSERM UMR_S1131, Institut de Recherche Saint-Louis, Université de Paris-Cité, Paris, France
| | - Claus Meyer
- DCAL/Institute of Pharmaceutical Biology, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Rolf Marschalek
- DCAL/Institute of Pharmaceutical Biology, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Mariana Boroni
- Bioinformatics and Computational Biology Laboratory, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Mariana Emerenciano
- Acute Leukemia RioSearch Group, Division of Clinical Research and Technological Development, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
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2
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NKL Homeobox Genes NKX2-3 and NKX2-4 Deregulate Megakaryocytic-Erythroid Cell Differentiation in AML. Int J Mol Sci 2021; 22:ijms222111434. [PMID: 34768865 PMCID: PMC8583893 DOI: 10.3390/ijms222111434] [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: 09/24/2021] [Revised: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 12/18/2022] Open
Abstract
NKL homeobox genes encode transcription factors that impact normal development and hematopoietic malignancies if deregulated. Recently, we established an NKL-code that describes the physiological expression pattern of eleven NKL homeobox genes in the course of hematopoiesis, allowing evaluation of aberrantly activated NKL genes in leukemia/lymphoma. Here, we identify ectopic expression of NKL homeobox gene NKX2-4 in an erythroblastic acute myeloid leukemia (AML) cell line OCI-M2 and describe investigation of its activating factors and target genes. Comparative expression profiling data of AML cell lines revealed in OCI-M2 an aberrantly activated program for endothelial development including master factor ETV2 and the additional endothelial signature genes HEY1, IRF6, and SOX7. Corresponding siRNA-mediated knockdown experiments showed their role in activating NKX2-4 expression. Furthermore, the ETV2 locus at 19p13 was genomically amplified, possibly underlying its aberrant expression. Target gene analyses of NKX2-4 revealed activated ETV2, HEY1, and SIX5 and suppressed FLI1. Comparative expression profiling analysis of public datasets for AML patients and primary megakaryocyte–erythroid progenitor cells showed conspicuous similarities to NKX2-4 activating factors and the target genes we identified, supporting the clinical relevance of our findings and developmental disturbance by NKX2-4. Finally, identification and target gene analysis of aberrantly expressed NKX2-3 in AML patients and a megakaryoblastic AML cell line ELF-153 showed activation of FLI1, contrasting with OCI-M2. FLI1 encodes a master factor for myelopoiesis, driving megakaryocytic differentiation and suppressing erythroid differentiation, thus representing a basic developmental target of these homeo-oncogenes. Taken together, we have identified aberrantly activated NKL homeobox genes NKX2-3 and NKX2-4 in AML, deregulating genes involved in megakaryocytic and erythroid differentiation processes, and thereby contributing to the formation of specific AML subtypes.
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Keewan E, Matlawska-Wasowska K. The Emerging Role of Suppressors of Cytokine Signaling (SOCS) in the Development and Progression of Leukemia. Cancers (Basel) 2021; 13:4000. [PMID: 34439155 PMCID: PMC8393695 DOI: 10.3390/cancers13164000] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 12/12/2022] Open
Abstract
Cytokines are pleiotropic signaling molecules that execute an essential role in cell-to-cell communication through binding to cell surface receptors. Receptor binding activates intracellular signaling cascades in the target cell that bring about a wide range of cellular responses, including induction of cell proliferation, migration, differentiation, and apoptosis. The Janus kinase and transducers and activators of transcription (JAK/STAT) signaling pathways are activated upon cytokines and growth factors binding with their corresponding receptors. The SOCS family of proteins has emerged as a key regulator of cytokine signaling, and SOCS insufficiency leads to constitutive activation of JAK/STAT signaling and oncogenic transformation. Dysregulation of SOCS expression is linked to various solid tumors with invasive properties. However, the roles of SOCS in hematological malignancies, such as leukemia, are less clear. In this review, we discuss the recent advances pertaining to SOCS dysregulation in leukemia development and progression. We also highlight the roles of specific SOCS in immune cells within the tumor microenvironment and their possible involvement in anti-tumor immunity. Finally, we discuss the epigenetic, genetic, and post-transcriptional modifications of SOCS genes during tumorigenesis, with an emphasis on leukemia.
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Affiliation(s)
- Esra’a Keewan
- Department of Pediatrics, Division of Hematology and Oncology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
- Comprehensive Cancer Center, University of New Mexico, Albuquerque, NM 87131, USA
| | - Ksenia Matlawska-Wasowska
- Department of Pediatrics, Division of Hematology and Oncology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
- Comprehensive Cancer Center, University of New Mexico, Albuquerque, NM 87131, USA
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4
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Matthijssens F, Sharma ND, Nysus M, Nickl CK, Kang H, Perez DR, Lintermans B, Van Loocke W, Roels J, Peirs S, Demoen L, Pieters T, Reunes L, Lammens T, De Moerloose B, Van Nieuwerburgh F, Deforce DL, Cheung LC, Kotecha RS, Risseeuw MD, Van Calenbergh S, Takarada T, Yoneda Y, van Delft FW, Lock RB, Merkley SD, Chigaev A, Sklar LA, Mullighan CG, Loh ML, Winter SS, Hunger SP, Goossens S, Castillo EF, Ornatowski W, Van Vlierberghe P, Matlawska-Wasowska K. RUNX2 regulates leukemic cell metabolism and chemotaxis in high-risk T cell acute lymphoblastic leukemia. J Clin Invest 2021; 131:141566. [PMID: 33555272 DOI: 10.1172/jci141566] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 01/20/2021] [Indexed: 12/17/2022] Open
Abstract
T cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematologic malignancy with inferior outcome compared with that of B cell ALL. Here, we show that Runt-related transcription factor 2 (RUNX2) was upregulated in high-risk T-ALL with KMT2A rearrangements (KMT2A-R) or an immature immunophenotype. In KMT2A-R cells, we identified RUNX2 as a direct target of the KMT2A chimeras, where it reciprocally bound the KMT2A promoter, establishing a regulatory feed-forward mechanism. Notably, RUNX2 was required for survival of immature and KMT2A-R T-ALL cells in vitro and in vivo. We report direct transcriptional regulation of CXCR4 signaling by RUNX2, thereby promoting chemotaxis, adhesion, and homing to medullary and extramedullary sites. RUNX2 enabled these energy-demanding processes by increasing metabolic activity in T-ALL cells through positive regulation of both glycolysis and oxidative phosphorylation. Concurrently, RUNX2 upregulation increased mitochondrial dynamics and biogenesis in T-ALL cells. Finally, as a proof of concept, we demonstrate that immature and KMT2A-R T-ALL cells were vulnerable to pharmacological targeting of the interaction between RUNX2 and its cofactor CBFβ. In conclusion, we show that RUNX2 acts as a dependency factor in high-risk subtypes of human T-ALL through concomitant regulation of tumor metabolism and leukemic cell migration.
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Affiliation(s)
- Filip Matthijssens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Nitesh D Sharma
- Department of Pediatrics, Division of Hematology-Oncology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA.,Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA
| | - Monique Nysus
- Department of Pediatrics, Division of Hematology-Oncology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA.,Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA
| | - Christian K Nickl
- Department of Pediatrics, Division of Hematology-Oncology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA.,Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA
| | - Huining Kang
- Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA.,Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Dominique R Perez
- Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA.,University of New Mexico Center for Molecular Discovery, Albuquerque, New Mexico, USA
| | - Beatrice Lintermans
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Wouter Van Loocke
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Juliette Roels
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Sofie Peirs
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Lisa Demoen
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Tim Pieters
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Lindy Reunes
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Tim Lammens
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium
| | - Barbara De Moerloose
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium
| | | | - Dieter L Deforce
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ghent, Belgium
| | - Laurence C Cheung
- Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia.,School of Pharmacy and Biomedical Sciences, Curtin University, Perth, Western Australia, Australia
| | - Rishi S Kotecha
- Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia.,School of Pharmacy and Biomedical Sciences, Curtin University, Perth, Western Australia, Australia
| | - Martijn Dp Risseeuw
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Laboratory for Medicinal Chemistry, Ghent University, Ghent, Belgium
| | - Serge Van Calenbergh
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Laboratory for Medicinal Chemistry, Ghent University, Ghent, Belgium
| | - Takeshi Takarada
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yukio Yoneda
- Department of Pharmacology, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Frederik W van Delft
- Wolfson Childhood Cancer Research Centre, Newcastle University Centre for Cancer, Newcastle upon Tyne, United Kingdom
| | - Richard B Lock
- Children's Cancer Institute, School of Women's and Children's Health, Lowy Cancer Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - Seth D Merkley
- Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Alexandre Chigaev
- Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA.,University of New Mexico Center for Molecular Discovery, Albuquerque, New Mexico, USA
| | - Larry A Sklar
- Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA.,University of New Mexico Center for Molecular Discovery, Albuquerque, New Mexico, USA
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Mignon L Loh
- Department of Pediatrics, Benioff Children's Hospital, UCSF, San Francisco, California, USA
| | - Stuart S Winter
- Cancer and Blood Disorders Program, Children's Minnesota, Minneapolis, Minnesota, USA
| | - Stephen P Hunger
- Department of Pediatrics and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Steven Goossens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Eliseo F Castillo
- Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | | | - Pieter Van Vlierberghe
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Ksenia Matlawska-Wasowska
- Department of Pediatrics, Division of Hematology-Oncology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA.,Comprehensive Cancer Center, University of New Mexico, Albuquerque, New Mexico, USA
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5
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Mroczek A, Zawitkowska J, Kowalczyk J, Lejman M. Comprehensive Overview of Gene Rearrangements in Childhood T-Cell Acute Lymphoblastic Leukaemia. Int J Mol Sci 2021; 22:E808. [PMID: 33467425 PMCID: PMC7829804 DOI: 10.3390/ijms22020808] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/11/2022] Open
Abstract
Acute lymphoblastic leukaemia (ALL) is a relevant form of childhood neoplasm, as it accounts for over 80% of all leukaemia cases. T-cell ALL constitutes a genetically heterogeneous cancer derived from T-lymphoid progenitors. The diagnosis of T-ALL is based on morphologic, immunophenotypic, cytogenetic, and molecular features, thus the results are used for patient stratification. Due to the expression of surface and intracellular antigens, several subtypes of T-ALL can be distinguished. Although the aetiology of T-ALL remains unclear, a wide spectrum of rearrangements and mutations affecting crucial signalling pathways has been described so far. Due to intensive chemotherapy regimens and supportive care, overall cure rates of more than 80% in paediatric T-ALL patients have been accomplished. However, improved knowledge of the mechanisms of relapse, drug resistance, and determination of risk factors are crucial for patients in the high-risk group. Even though some residual disease studies have allowed the optimization of therapy, the identification of novel diagnostic and prognostic markers is required to individualize therapy. The following review summarizes our current knowledge about genetic abnormalities in paediatric patients with T-ALL. As molecular biology techniques provide insights into the biology of cancer, our study focuses on new potential therapeutic targets and predictive factors which may improve the outcome of young patients with T-ALL.
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Affiliation(s)
- Anna Mroczek
- Department of Paediatric Haematology, Oncology and Transplantology, Medical University of Lublin, 20-093 Lublin, Poland; (A.M.); (J.Z.); (J.K.)
| | - Joanna Zawitkowska
- Department of Paediatric Haematology, Oncology and Transplantology, Medical University of Lublin, 20-093 Lublin, Poland; (A.M.); (J.Z.); (J.K.)
| | - Jerzy Kowalczyk
- Department of Paediatric Haematology, Oncology and Transplantology, Medical University of Lublin, 20-093 Lublin, Poland; (A.M.); (J.Z.); (J.K.)
| | - Monika Lejman
- Laboratory of Genetic Diagnostics, Medical University of Lublin, 20-093 Lublin, Poland
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6
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Forgione MO, McClure BJ, Yeung DT, Eadie LN, White DL. MLLT10 rearranged acute leukemia: Incidence, prognosis, and possible therapeutic strategies. Genes Chromosomes Cancer 2020; 59:709-721. [PMID: 32720323 DOI: 10.1002/gcc.22887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/07/2020] [Accepted: 07/13/2020] [Indexed: 12/22/2022] Open
Abstract
Rearrangements of the MLLT10 gene occur in acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL), most commonly T-lineage ALL (T-ALL), in patients of all ages. MLLT10 rearranged (MLLT10r) acute leukemia presents a complex diagnostic and therapeutic challenge due to frequent presentation of immature or mixed phenotype, and a lack of consensus regarding optimal therapy. Cases of MLLT10r AML or T-ALL bearing immature phenotype are at high risk of poor outcome, but the underlying molecular mechanisms and sensitivity to targeted therapies remain poorly characterized. This review addresses the incidence and prognostic significance of MLLT10r in acute leukemia, and how the aberrant gene expression profile of this disease can inform potential targeted therapeutic strategies. Understanding the underlying genomics of MLLT10r acute leukemia, both clinically and molecularly, will improve prognostic stratification and accelerate the development of targeted therapeutic strategies, to improve patient outcomes.
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Affiliation(s)
- Michelle O Forgione
- Cancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
- Faculty of Science, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Barbara J McClure
- Cancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
- Faculty of Health and Medical Science, University of Adelaide, Adelaide, South Australia, Australia
| | - David T Yeung
- Cancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
- Faculty of Health and Medical Science, University of Adelaide, Adelaide, South Australia, Australia
- Department of Haematology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Laura N Eadie
- Cancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
- Faculty of Health and Medical Science, University of Adelaide, Adelaide, South Australia, Australia
| | - Deborah L White
- Cancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
- Faculty of Science, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia
- Faculty of Health and Medical Science, University of Adelaide, Adelaide, South Australia, Australia
- Australian Genomics Health Alliance (AGHA), The Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Australian and New Zealand Children's Oncology Group (ANZCHOG), Hudson Institute, Clayton, Victoria, Australia
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7
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Deutsch JL, Heath JL. MLLT10 in benign and malignant hematopoiesis. Exp Hematol 2020; 87:1-12. [PMID: 32569758 DOI: 10.1016/j.exphem.2020.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/16/2020] [Accepted: 06/18/2020] [Indexed: 01/01/2023]
Abstract
Non-random chromosomal translocations involving the putative transcription factor Mixed Lineage Leukemia Translocated to 10 (MLLT10, also known as AF10) are commonly observed in both acute myeloid and lymphoid leukemias and are indicative of a poor prognosis. Despite the well-described actions of oncogenic MLLT10 fusion proteins, the role of wild-type MLLT10 in hematopoiesis is not well characterized. The protein structure and several interacting partners have been described and provide indications as to the potential functions of MLLT10. This review examines these aspects of MLLT10, contextualizing its function in benign and malignant hematopoiesis.
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Affiliation(s)
- Jamie L Deutsch
- Department of Pediatrics, University of Vermont, Burlington, VT
| | - Jessica L Heath
- Department of Pediatrics, University of Vermont, Burlington, VT; Department of Biochemistry, University of Vermont, Burlington, VT 05405; University of Vermont Cancer Center, Burlington, VT.
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8
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Forgione MO, McClure BJ, Eadie LN, Yeung DT, White DL. KMT2A rearranged acute lymphoblastic leukaemia: Unravelling the genomic complexity and heterogeneity of this high-risk disease. Cancer Lett 2019; 469:410-418. [PMID: 31705930 DOI: 10.1016/j.canlet.2019.11.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/29/2019] [Accepted: 11/02/2019] [Indexed: 12/11/2022]
Abstract
KMT2A rearranged (KMT2Ar) acute lymphoblastic leukaemia (ALL) is a high-risk genomic subtype, with long-term survival rates of less than 60% across all age groups. These cases present a complex clinical challenge, with a high incidence in infants, high-risk clinical features and propensity for aggressive relapse. KMT2A rearrangements are highly pathogenic leukaemic drivers, reflected by the high incidence of KMT2Ar ALL in infants, who carry few leukaemia-associated cooperative mutations. However, transgenic murine models of KMT2Ar ALL typically exhibit long latency and mature or mixed phenotype, and fail to recapitulate the aggressive disease observed clinically. Next-generation sequencing has revealed that KMT2Ar ALL also occurs in adolescents and adults, and potentially cooperative genomic lesions such as PI3K-RAS pathway variants are present in KMT2Ar patients of all ages. This review addresses the aetiology of KMT2Ar ALL, with a focus on the cell of origin and mutational landscape, and how genomic profiling of KMT2Ar ALL patients in the era of next-generation sequencing demonstrates that KMT2Ar ALL is a complex heterogenous disease. Ultimately, understanding the underlying biology of KMT2Ar ALL will be important in improving long-term outcomes for these high-risk patients.
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Affiliation(s)
- Michelle O Forgione
- Cancer Program, Precision Medicine Theme, South Australian Health & Medical Research Institute (SAHMRI), Adelaide, SA, 5000, Australia; School of Biological Sciences, University of Adelaide, SA, 5000, Australia.
| | - Barbara J McClure
- Cancer Program, Precision Medicine Theme, South Australian Health & Medical Research Institute (SAHMRI), Adelaide, SA, 5000, Australia; Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, 5000, Australia
| | - Laura N Eadie
- Cancer Program, Precision Medicine Theme, South Australian Health & Medical Research Institute (SAHMRI), Adelaide, SA, 5000, Australia; Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, 5000, Australia
| | - David T Yeung
- Cancer Program, Precision Medicine Theme, South Australian Health & Medical Research Institute (SAHMRI), Adelaide, SA, 5000, Australia; Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, 5000, Australia; Department of Haematology, Royal Adelaide Hospital, SA, 5000, Australia
| | - Deborah L White
- Cancer Program, Precision Medicine Theme, South Australian Health & Medical Research Institute (SAHMRI), Adelaide, SA, 5000, Australia; School of Biological Sciences, University of Adelaide, SA, 5000, Australia; Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, 5000, Australia; Australian Genomics Health Alliance (AGHA), The Murdoch Children's Research Institute, Parkville, Vic, 3052, Australia; Australian and New Zealand Children's Oncology Group (ANZCHOG), Clayton, Vic, 3168, Australia
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9
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Sharma ND, Nickl CK, Kang H, Ornatowski W, Brown R, Ness SA, Loh ML, Mullighan CG, Winter SS, Hunger SP, Cannon JL, Matlawska‐Wasowska K. Epigenetic silencing of SOCS5 potentiates JAK-STAT signaling and progression of T-cell acute lymphoblastic leukemia. Cancer Sci 2019; 110:1931-1946. [PMID: 30974024 PMCID: PMC6549933 DOI: 10.1111/cas.14021] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 04/03/2019] [Accepted: 04/08/2019] [Indexed: 01/12/2023] Open
Abstract
Activating mutations in cytokine receptors and transcriptional regulators govern aberrant signal transduction in T-cell lineage acute lymphoblastic leukemia (T-ALL). However, the roles played by suppressors of cytokine signaling remain incompletely understood. We examined the regulatory roles of suppressor of cytokine signaling 5 (SOCS5) in T-ALL cellular signaling networks and leukemia progression. We found that SOCS5 was differentially expressed in primary T-ALL and its expression levels were lowered in HOXA-deregulated leukemia harboring KMT2A gene rearrangements. Here, we report that SOCS5 expression is epigenetically regulated by DNA methyltransferase-3A-mediated DNA methylation and methyl CpG binding protein-2-mediated histone deacetylation. We show that SOCS5 negatively regulates T-ALL cell growth and cell cycle progression but has no effect on apoptotic cell death. Mechanistically, SOCS5 silencing induces activation of JAK-STAT signaling, and negatively regulates interleukin-7 and interleukin-4 receptors. Using a human T-ALL murine xenograft model, we show that genetic inactivation of SOCS5 accelerates leukemia engraftment and progression, and leukemia burden. We postulate that SOCS5 is epigenetically deregulated in T-ALL and serves as an important regulator of T-ALL cell proliferation and leukemic progression. Our results link aberrant downregulation of SOCS5 expression to the enhanced activation of the JAK-STAT and cytokine receptor-signaling cascade in T-ALL.
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Affiliation(s)
- Nitesh D. Sharma
- Department of PediatricsUniversity of New Mexico Health Sciences CenterAlbuquerqueNM
| | - Christian K. Nickl
- Department of PediatricsUniversity of New Mexico Health Sciences CenterAlbuquerqueNM
| | - Huining Kang
- Department of Internal MedicineUniversity of New Mexico Comprehensive Cancer CenterAlbuquerqueNM
| | - Wojciech Ornatowski
- Department of PathologyUniversity of New Mexico Comprehensive Cancer CenterAlbuquerqueNM
| | - Roger Brown
- Department of Internal MedicineUniversity of New Mexico Comprehensive Cancer CenterAlbuquerqueNM
| | - Scott A. Ness
- Department of Internal MedicineUniversity of New Mexico Comprehensive Cancer CenterAlbuquerqueNM
| | - Mignon L. Loh
- Department of PediatricsBenioff Children's HospitalUniversity of California at San FranciscoSan FranciscoCA
| | | | - Stuart S. Winter
- Children's Minnesota Research Institute and Cancer and Blood Disorders ProgramChildren's MinnesotaMinneapolisMN
| | - Stephen P. Hunger
- Department of Pediatrics and the Center for Childhood Cancer ResearchChildren's Hospital of PhiladelphiaPerelman School of Medicine at the University of PennsylvaniaPhiladelphiaPA
| | - Judy L. Cannon
- Department of PathologyUniversity of New Mexico Comprehensive Cancer CenterAlbuquerqueNM
- Department of Molecular Genetics and MicrobiologyUniversity of New Mexico Health Sciences CenterAlbuquerqueNMUSA
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