1
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Pagliaro L, Chen SJ, Herranz D, Mecucci C, Harrison CJ, Mullighan CG, Zhang M, Chen Z, Boissel N, Winter SS, Roti G. Acute lymphoblastic leukaemia. Nat Rev Dis Primers 2024; 10:41. [PMID: 38871740 DOI: 10.1038/s41572-024-00525-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/01/2024] [Indexed: 06/15/2024]
Abstract
Acute lymphoblastic leukaemia (ALL) is a haematological malignancy characterized by the uncontrolled proliferation of immature lymphoid cells. Over past decades, significant progress has been made in understanding the biology of ALL, resulting in remarkable improvements in its diagnosis, treatment and monitoring. Since the advent of chemotherapy, ALL has been the platform to test for innovative approaches applicable to cancer in general. For example, the advent of omics medicine has led to a deeper understanding of the molecular and genetic features that underpin ALL. Innovations in genomic profiling techniques have identified specific genetic alterations and mutations that drive ALL, inspiring new therapies. Targeted agents, such as tyrosine kinase inhibitors and immunotherapies, have shown promising results in subgroups of patients while minimizing adverse effects. Furthermore, the development of chimeric antigen receptor T cell therapy represents a breakthrough in ALL treatment, resulting in remarkable responses and potential long-term remissions. Advances are not limited to treatment modalities alone. Measurable residual disease monitoring and ex vivo drug response profiling screening have provided earlier detection of disease relapse and identification of exceptional responders, enabling clinicians to adjust treatment strategies for individual patients. Decades of supportive and prophylactic care have improved the management of treatment-related complications, enhancing the quality of life for patients with ALL.
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Affiliation(s)
- Luca Pagliaro
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Translational Hematology and Chemogenomics (THEC), University of Parma, Parma, Italy
- Hematology and BMT Unit, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Sai-Juan Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Daniel Herranz
- Rutgers Cancer Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
| | - Cristina Mecucci
- Department of Medicine, Hematology and Clinical Immunology, University of Perugia, Perugia, Italy
| | - Christine J Harrison
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University Centre for Cancer, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Ming Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Zhu Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Nicolas Boissel
- Hôpital Saint-Louis, APHP, Institut de Recherche Saint-Louis, Université Paris Cité, Paris, France
| | - Stuart S Winter
- Children's Minnesota Cancer and Blood Disorders Program, Minneapolis, MN, USA
| | - Giovanni Roti
- Department of Medicine and Surgery, University of Parma, Parma, Italy.
- Translational Hematology and Chemogenomics (THEC), University of Parma, Parma, Italy.
- Hematology and BMT Unit, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy.
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2
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Varisli L, Vlahopoulos S. Epithelial-Mesenchymal Transition in Acute Leukemias. Int J Mol Sci 2024; 25:2173. [PMID: 38396852 PMCID: PMC10889420 DOI: 10.3390/ijms25042173] [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: 12/18/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a metabolic process that confers phenotypic flexibility to cells and the ability to adapt to new functions. This transition is critical during embryogenesis and is required for the differentiation of many tissues and organs. EMT can also be induced in advanced-stage cancers, leading to further malignant behavior and chemotherapy resistance, resulting in an unfavorable prognosis for patients. Although EMT was long considered and studied only in solid tumors, it has been shown to be involved in the pathogenesis of hematological malignancies, including acute leukemias. Indeed, there is increasing evidence that EMT promotes the progression of acute leukemias, leading to the emergence of a more aggressive phenotype of the disease, and also causes chemotherapy resistance. The current literature suggests that the levels and activities of EMT inducers and markers can be used to predict prognosis, and that targeting EMT in addition to conventional therapies may increase treatment success in acute leukemias.
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Affiliation(s)
- Lokman Varisli
- Department of Molecular Biology and Genetics, Science Faculty, Dicle University, Diyarbakir 21280, Turkey
| | - Spiros Vlahopoulos
- First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, Goudi, 11527 Athens, Greece
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3
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Schuhwerk H, Brabletz T. Mutual regulation of TGFβ-induced oncogenic EMT, cell cycle progression and the DDR. Semin Cancer Biol 2023; 97:86-103. [PMID: 38029866 DOI: 10.1016/j.semcancer.2023.11.009] [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: 06/27/2023] [Revised: 10/06/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
TGFβ signaling and the DNA damage response (DDR) are two cellular toolboxes with a strong impact on cancer biology. While TGFβ as a pleiotropic cytokine affects essentially all hallmarks of cancer, the multifunctional DDR mostly orchestrates cell cycle progression, DNA repair, chromatin remodeling and cell death. One oncogenic effect of TGFβ is the partial activation of epithelial-to-mesenchymal transition (EMT), conferring invasiveness, cellular plasticity and resistance to various noxae. Several reports show that both individual networks as well as their interface affect chemo-/radiotherapies. However, the underlying mechanisms remain poorly resolved. EMT often correlates with TGFβ-induced slowing of proliferation, yet numerous studies demonstrate that particularly the co-activated EMT transcription factors counteract anti-proliferative signaling in a partially non-redundant manner. Collectively, evidence piled up over decades underscore a multifaceted, reciprocal inter-connection of TGFβ signaling / EMT with the DDR / cell cycle progression, which we will discuss here. Altogether, we conclude that full cell cycle arrest is barely compatible with the propagation of oncogenic EMT traits and further propose that 'EMT-linked DDR plasticity' is a crucial, yet intricate facet of malignancy, decisively affecting metastasis formation and therapy resistance.
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Affiliation(s)
- Harald Schuhwerk
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany.
| | - Thomas Brabletz
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany.
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4
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Haerinck J, Goossens S, Berx G. The epithelial-mesenchymal plasticity landscape: principles of design and mechanisms of regulation. Nat Rev Genet 2023; 24:590-609. [PMID: 37169858 DOI: 10.1038/s41576-023-00601-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2023] [Indexed: 05/13/2023]
Abstract
Epithelial-mesenchymal plasticity (EMP) enables cells to interconvert between several states across the epithelial-mesenchymal landscape, thereby acquiring hybrid epithelial/mesenchymal phenotypic features. This plasticity is crucial for embryonic development and wound healing, but also underlies the acquisition of several malignant traits during cancer progression. Recent research using systems biology and single-cell profiling methods has provided novel insights into the main forces that shape EMP, which include the microenvironment, lineage specification and cell identity, and the genome. Additionally, key roles have emerged for hysteresis (cell memory) and cellular noise, which can drive stochastic transitions between cell states. Here, we review these forces and the distinct but interwoven layers of regulatory control that stabilize EMP states or facilitate epithelial-mesenchymal transitions (EMTs) and discuss the therapeutic potential of manipulating the EMP landscape.
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Affiliation(s)
- Jef Haerinck
- Molecular and Cellular Oncology Laboratory, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Steven Goossens
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
- Unit for Translational Research in Oncology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Geert Berx
- Molecular and Cellular Oncology Laboratory, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.
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5
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Radhakrishnan K, Truong L, Carmichael CL. An "unexpected" role for EMT transcription factors in hematological development and malignancy. Front Immunol 2023; 14:1207360. [PMID: 37600794 PMCID: PMC10435889 DOI: 10.3389/fimmu.2023.1207360] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/14/2023] [Indexed: 08/22/2023] Open
Abstract
The epithelial to mesenchymal transition (EMT) is a fundamental developmental process essential for normal embryonic development. It is also important during various pathogenic processes including fibrosis, wound healing and epithelial cancer cell metastasis and invasion. EMT is regulated by a variety of cell signalling pathways, cell-cell interactions and microenvironmental cues, however the key drivers of EMT are transcription factors of the ZEB, TWIST and SNAIL families. Recently, novel and unexpected roles for these EMT transcription factors (EMT-TFs) during normal blood cell development have emerged, which appear to be largely independent of classical EMT processes. Furthermore, EMT-TFs have also begun to be implicated in the development and pathogenesis of malignant hematological diseases such as leukemia and lymphoma, and now present themselves or the pathways they regulate as possible new therapeutic targets within these malignancies. In this review, we discuss the ZEB, TWIST and SNAIL families of EMT-TFs, focusing on what is known about their normal roles during hematopoiesis as well as the emerging and "unexpected" contribution they play during development and progression of blood cancers.
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Affiliation(s)
- Karthika Radhakrishnan
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - Lynda Truong
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - Catherine L. Carmichael
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC, Australia
- Monash University, Faculty of Medicine, Nursing and Health Sciences, Clayton, VIC, Australia
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6
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Park CS, Yoshihara H, Gao Q, Qu C, Iacobucci I, Ghate PS, Connelly JP, Pruett-Miller SM, Wagner B, Robinson CG, Mishra A, Peng J, Yang L, Rankovic Z, Finkelstein D, Luger S, Litzow M, Paietta EM, Hebbar N, Velasquez MP, Mullighan CG. Stromal-induced epithelial-mesenchymal transition induces targetable drug resistance in acute lymphoblastic leukemia. Cell Rep 2023; 42:112804. [PMID: 37453060 PMCID: PMC10529385 DOI: 10.1016/j.celrep.2023.112804] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 04/05/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023] Open
Abstract
The bone marrow microenvironment (BME) drives drug resistance in acute lymphoblastic leukemia (ALL) through leukemic cell interactions with bone marrow (BM) niches, but the underlying mechanisms remain unclear. Here, we show that the interaction between ALL and mesenchymal stem cells (MSCs) through integrin β1 induces an epithelial-mesenchymal transition (EMT)-like program in MSC-adherent ALL cells, resulting in drug resistance and enhanced survival. Moreover, single-cell RNA sequencing analysis of ALL-MSC co-culture identifies a hybrid cluster of MSC-adherent ALL cells expressing both B-ALL and MSC signature genes, orchestrated by a WNT/β-catenin-mediated EMT-like program. Blockade of interaction between β-catenin and CREB binding protein impairs the survival and drug resistance of MSC-adherent ALL cells in vitro and results in a reduction in leukemic burden in vivo. Targeting of this WNT/β-catenin-mediated EMT-like program is a potential therapeutic approach to overcome cell extrinsically acquired drug resistance in ALL.
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Affiliation(s)
- Chun Shik Park
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Hiroki Yoshihara
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Qingsong Gao
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Chunxu Qu
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Ilaria Iacobucci
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Pankaj S Ghate
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Jon P Connelly
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Shondra M Pruett-Miller
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Ben Wagner
- Cell and Tissue Imaging Center, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Camenzind G Robinson
- Cell and Tissue Imaging Center, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Ashutosh Mishra
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Junmin Peng
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Lei Yang
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Zoran Rankovic
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - David Finkelstein
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Selina Luger
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19106, USA
| | - Mark Litzow
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Nikhil Hebbar
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - M Paulina Velasquez
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
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7
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Dawidowska M, Dzikiewicz-Krawczyk A, Rozwadowska N, Ntziachristos P, Kluiver J, van den Berg A, Siebert R, Giefing M. Obituary-Pieter Van Vlierberghe (1980-2022). Leukemia 2023; 37:952-953. [PMID: 36869100 DOI: 10.1038/s41375-023-01825-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 03/05/2023]
Affiliation(s)
| | | | | | - Panagiotis Ntziachristos
- Department of Biomolecular Medicine and Cancer Research Institute Ghent, Ghent University, Ghent, Belgium
| | - Joost Kluiver
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Anke van den Berg
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Reiner Siebert
- Institute of Human Genetics Ulm University and Ulm University Medical Center, Ulm, Germany
| | - Maciej Giefing
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland.
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8
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Molania R, Foroutan M, Gagnon-Bartsch JA, Gandolfo LC, Jain A, Sinha A, Olshansky G, Dobrovic A, Papenfuss AT, Speed TP. Removing unwanted variation from large-scale RNA sequencing data with PRPS. Nat Biotechnol 2023; 41:82-95. [PMID: 36109686 PMCID: PMC9849124 DOI: 10.1038/s41587-022-01440-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 06/30/2022] [Indexed: 01/22/2023]
Abstract
Accurate identification and effective removal of unwanted variation is essential to derive meaningful biological results from RNA sequencing (RNA-seq) data, especially when the data come from large and complex studies. Using RNA-seq data from The Cancer Genome Atlas (TCGA), we examined several sources of unwanted variation and demonstrate here how these can significantly compromise various downstream analyses, including cancer subtype identification, association between gene expression and survival outcomes and gene co-expression analysis. We propose a strategy, called pseudo-replicates of pseudo-samples (PRPS), for deploying our recently developed normalization method, called removing unwanted variation III (RUV-III), to remove the variation caused by library size, tumor purity and batch effects in TCGA RNA-seq data. We illustrate the value of our approach by comparing it to the standard TCGA normalizations on several TCGA RNA-seq datasets. RUV-III with PRPS can be used to integrate and normalize other large transcriptomic datasets coming from multiple laboratories or platforms.
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Affiliation(s)
- Ramyar Molania
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia.
| | - Momeneh Foroutan
- Biomedicine Discovery Institute and the Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | | | - Luke C Gandolfo
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
- School of Mathematics and Statistics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Aryan Jain
- Department of Economics and Statistics, Monash University, Melbourne, Victoria, Australia
| | - Abhishek Sinha
- Department of Economics and Statistics, Monash University, Melbourne, Victoria, Australia
| | - Gavriel Olshansky
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Baker Department of Cardiometabolic Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Alexander Dobrovic
- Department of Surgery, The University of Melbourne, Austin Health, Heidelberg, Victoria, Australia
| | - Anthony T Papenfuss
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia.
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia.
| | - Terence P Speed
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
- School of Mathematics and Statistics, The University of Melbourne, Melbourne, Victoria, Australia.
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9
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Jaiswal A, Jaiswal A, Williamson EA, Gelfond J, Zheng G, Zhou D, Hromas R. Resistance to the BCL-XL degrader DT2216 in T-cell acute lymphoblastic leukemia is rare and correlates with decreased BCL-XL proteolysis. Cancer Chemother Pharmacol 2023; 91:89-95. [PMID: 36346454 PMCID: PMC10405225 DOI: 10.1007/s00280-022-04490-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/30/2022] [Indexed: 11/10/2022]
Abstract
PURPOSE The BCL-2 family of anti-apoptotic proteins, BCL-2, BCL-XL and MCL-1, can mediate survival of some types of cancer. DT2216 is a PROteolysis-TArgeting Chimera (PROTAC) that degrades BCL-XL specifically and is in phase 1 trials. We sought to define the frequency and mechanism of resistance to DT2216 in T-cell acute lymphoblastic leukemia (T-ALL) cell lines. METHODS We measured cell survival and protein levels of BCL-XL, BCL-2, MCL-1 and the pro-apoptotic BIM in 13 distinct T-ALL cell lines after exposure to varying concentrations of DT2216. RESULTS We identified concentrations of DT2216 which were cytotoxic to each T-ALL cell line. These concentrations have no correlation with the initial protein levels of BCL-XL, BCL-2, MCL-1 or BIM in each cell line. However, there was a correlation between survival to DT2216 and the efficiency of degradation of BCL-XL by DT2216. Only one cell line, SUP-T1, had significant resistance to DT2216, defined as an IC50 above what is achievable in murine tumors in vivo. CONCLUSION Resistance to DT2216 is rare in a wide variety of T-ALL cells but when it occurs is correlated with decreased BCL-XL degradation. Resistance to DT2216 in T-ALL is not predicted by initial BCL-XL or BIM protein levels, or BCL-2 or MCL-1 levels before or after treatment. These data imply that a phase 2 clinical trial of DT2216 in T-ALL should be widely available and not limited to a subset of patients.
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Affiliation(s)
- Arunima Jaiswal
- Division of Hematology and Medical Oncology, Department of Medicine and the Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
| | - Aruna Jaiswal
- Division of Hematology and Medical Oncology, Department of Medicine and the Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
| | - Elizabeth A Williamson
- Division of Hematology and Medical Oncology, Department of Medicine and the Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
| | - Jonathon Gelfond
- Division of Biostatistics, Department of Population Health Science, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
| | - Guangrong Zheng
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, 32610, USA
| | - Daohong Zhou
- Center for Innovative Drug Development and the Department of Biochemistry and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
| | - Robert Hromas
- Division of Hematology and Medical Oncology, Department of Medicine and the Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA.
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10
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Benyoucef A, Haigh K, Cuddihy A, Haigh JJ. JAK/BCL2 inhibition acts synergistically with LSD1 inhibitors to selectively target ETP-ALL. Leukemia 2022; 36:2802-2816. [PMID: 36229595 PMCID: PMC9712096 DOI: 10.1038/s41375-022-01716-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/09/2022]
Abstract
ETP-ALL (Early T cell Progenitor Acute Lymphoblastic Leukemia) represents a high-risk subtype of T cell acute lymphocytic leukemia (T-ALL). Therapeutically, ETP-ALL patients frequently relapse after conventional chemotherapy highlighting the need for alternative therapeutic approaches. Using our ZEB2Tg ETP-ALL mouse model we previously documented the potential utility of the catalytic LSD1 inhibitor (GSK2879552) for treating mouse/human ETP-ALL. However, this approach proved to be inefficient, especially in killing human LOUCY cell ETP-ALL xenografts in vivo. Here we have revealed the novel involvement of ZEB2/LSD1 complexes in repressing the intrinsic apoptosis pathway by inhibiting the expression of several pro-apoptotic proteins such as BIM (BCL2L11) as a major driver for ETP-ALL survival. Treatment with LSD1i (particularly with the steric inhibitor SP2509) restored the expression of ZEB2/LSD1 pro-apoptotic BIM (BCL2L11) target. In combination with a JAK/STAT pathway inhibitor (JAKi, Ruxolitinib) or with a direct inhibitor of the anti-apoptotic BCL2 protein (BCL2i, ABT-199) resistance of human and mouse ETP-ALL to LSD1i was reversed. This new combination approach efficiently inhibited the growth of human and mouse ETP-ALL cells in vivo by enhancing their differentiation and triggering an apoptotic response. These results set the stage for novel combination therapies to be used in clinical trials to treat ETP-ALL patients.
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Affiliation(s)
- Aissa Benyoucef
- Department of Pharmacology and Therapeutics, Rady Faulty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
- CancerCare Manitoba Research Institute, Winnipeg, MB, Canada.
| | - Katharina Haigh
- Department of Pharmacology and Therapeutics, Rady Faulty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- CancerCare Manitoba Research Institute, Winnipeg, MB, Canada
| | - Andrew Cuddihy
- CancerCare Manitoba Research Institute, Winnipeg, MB, Canada
| | - Jody J Haigh
- Department of Pharmacology and Therapeutics, Rady Faulty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
- CancerCare Manitoba Research Institute, Winnipeg, MB, Canada.
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11
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Oliveira ML, Veloso A, Garcia EG, Iyer S, Pereira C, Barreto VM, Langenau DM, Barata JT. Mutant IL7R collaborates with MYC to induce T-cell acute lymphoblastic leukemia. Leukemia 2022; 36:1533-1540. [PMID: 35581375 PMCID: PMC9162918 DOI: 10.1038/s41375-022-01590-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 11/09/2022]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive pediatric cancer. Amongst the wide array of driver mutations, 10% of T-ALL patients display gain-of-function mutations in the IL-7 receptor α chain (IL-7Rα, encoded by IL7R), which occur in different molecular subtypes of this disease. However, it is still unclear whether IL-7R mutational activation is sufficient to transform T-cell precursors. Also, which genes cooperate with IL7R to drive leukemogenesis remain poorly defined. Here, we demonstrate that mutant IL7R alone is capable of inducing T-ALL with long-latency in stable transgenic zebrafish and transformation is associated with MYC transcriptional activation. Additionally, we find that mutant IL7R collaborates with Myc to induce early onset T-ALL in transgenic zebrafish, supporting a model where these pathways collaborate to drive leukemogenesis. T-ALLs co-expressing mutant IL7R and Myc activate STAT5 and AKT pathways, harbor reduced numbers of apoptotic cells and remake tumors in transplanted zebrafish faster than T-ALLs expressing Myc alone. Moreover, limiting-dilution cell transplantation experiments reveal that activated IL-7R signaling increases the overall frequency of leukemia propagating cells. Our work highlights a synergy between mutant IL7R and Myc in inducing T-ALL and demonstrates that mutant IL7R enriches for leukemia propagating potential.
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Affiliation(s)
- Mariana L Oliveira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Alexandra Veloso
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA
| | - Elaine G Garcia
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA
| | - Sowmya Iyer
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA
| | - Clara Pereira
- Smurfit Institute of Genetics, Trinity College Dublin, University of Dublin, Dublin 2, Ireland
| | - Vasco M Barreto
- DNA Breaks Laboratory, CEDOC - Chronic Diseases Research Center, NOVA Medical School - Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - David M Langenau
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA.
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA.
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA.
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA.
| | - João T Barata
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
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12
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Myb drives B-cell neoplasms and myeloid malignancies in vivo. Blood Adv 2022; 6:2987-2991. [PMID: 35020834 PMCID: PMC9131915 DOI: 10.1182/bloodadvances.2021005955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 12/29/2021] [Indexed: 12/01/2022] Open
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13
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Tarantini F, Cumbo C, Anelli L, Zagaria A, Specchia G, Musto P, Albano F. Inside the biology of early T-cell precursor acute lymphoblastic leukemia: the perfect trick. Biomark Res 2021; 9:89. [PMID: 34930475 PMCID: PMC8686563 DOI: 10.1186/s40364-021-00347-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/23/2021] [Indexed: 12/11/2022] Open
Abstract
Early T-cell precursor acute lymphoblastic leukemia (ETP-ALL) is a rare, distinct subtype of T-ALL characterized by genomic instability, a dismal prognosis and refractoriness to standard chemotherapy. Since its first description in 2009, the expanding knowledge of its intricate biology has led to the definition of a stem cell leukemia with a combined lymphoid-myeloid potential: the perfect trick. Several studies in the last decade aimed to better characterize this new disease, but it was recognized as a distinct entity only in 2016. We review current insights into the biology of ETP-ALL and discuss the pathogenesis, genomic features and their impact on the clinical course in the precision medicine era today.
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Affiliation(s)
- Francesco Tarantini
- Department of Emergency and Organ Transplantation (D.E.T.O.) - Hematology and Stem Cell Transplantation Unit, University of Bari "Aldo Moro", P.zza G. Cesare, 11, 70124, Bari, Italy
| | - Cosimo Cumbo
- Department of Emergency and Organ Transplantation (D.E.T.O.) - Hematology and Stem Cell Transplantation Unit, University of Bari "Aldo Moro", P.zza G. Cesare, 11, 70124, Bari, Italy
| | - Luisa Anelli
- Department of Emergency and Organ Transplantation (D.E.T.O.) - Hematology and Stem Cell Transplantation Unit, University of Bari "Aldo Moro", P.zza G. Cesare, 11, 70124, Bari, Italy
| | - Antonella Zagaria
- Department of Emergency and Organ Transplantation (D.E.T.O.) - Hematology and Stem Cell Transplantation Unit, University of Bari "Aldo Moro", P.zza G. Cesare, 11, 70124, Bari, Italy
| | - Giorgina Specchia
- School of Medicine, University of Bari "Aldo Moro", 70124, Bari, Italy
| | - Pellegrino Musto
- Department of Emergency and Organ Transplantation (D.E.T.O.) - Hematology and Stem Cell Transplantation Unit, University of Bari "Aldo Moro", P.zza G. Cesare, 11, 70124, Bari, Italy
| | - Francesco Albano
- Department of Emergency and Organ Transplantation (D.E.T.O.) - Hematology and Stem Cell Transplantation Unit, University of Bari "Aldo Moro", P.zza G. Cesare, 11, 70124, Bari, Italy.
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14
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Goldberg L, Negi V, Chung YJ, Onozawa M, Zhu YJ, Walker RL, Pierce R, Patel DP, Krausz KW, Gonzalez FJ, Goodell MA, Rodriguez BAT, Meltzer PS, Aplan PD. Mutant Idh2 Cooperates with a NUP98-HOXD13 Fusion to Induce Early Immature Thymocyte Precursor ALL. Cancer Res 2021; 81:5033-5046. [PMID: 34321240 PMCID: PMC8487989 DOI: 10.1158/0008-5472.can-21-1027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/09/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022]
Abstract
Mutations in the isocitrate dehydrogenase 1 (IDH1) and IDH2 genes are frequently observed in a wide variety of hematologic malignancies, including myeloid and T-cell leukemias. In this study, we generated Idh2R140Q transgenic mice to examine the role of the Idh2R140Q mutation in leukemia. No leukemia developed in Idh2R140Q transgenic mice, suggesting a need for additional genetic events for leukemia development. Because myeloid cells from NUP98-HOXD13 fusion (NHD13) transgenic mice frequently acquire somatic Idh mutations when they transform to acute myeloid leukemia, we generated Idh2R140Q/NHD13 double transgenic mice. Idh2R140Q/NHD13 transgenic mice developed an immature T-cell leukemia with an immunophenotype similar to double-negative 1 (DN1) or DN2 thymocytes. Idh2R140Q/NHD13 leukemic cells were enriched for an early thymic precursor transcriptional signature, and the gene expression profile for Idh2R140Q/NHD13 DN1/DN2 T-ALL closely matched that of human early/immature T-cell precursor (EITP) acute lymphoblastic leukemia (ALL). Moreover, recurrent mutations found in patients with EITP ALL, including KRAS, PTPN11, JAK3, SH2B3, and EZH2 were also found in Idh2R140Q/NHD13 DN1/DN2 T-ALL. In vitro treatment of Idh2R140Q/NHD13 thymocytes with enasidenib, a selective inhibitor of mutant IDH2, led to a marked decrease in leukemic cell proliferation. These findings demonstrate that Idh2R140Q/NHD13 mice can serve as a useful in vivo model for the study of early/immature thymocyte precursor acute lymphoblastic leukemia development and therapy. SIGNIFICANCE: T-cell leukemia induced in Idh2R140Q/NUP98-HOXD13 mice is immunophenotypically, transcriptionally, and genetically similar to human EITP ALL, providing a model for studying disease development and treatment.
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Affiliation(s)
- Liat Goldberg
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Vijay Negi
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Yang Jo Chung
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Masahiro Onozawa
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Yuelin J Zhu
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Robert L Walker
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Rachel Pierce
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Daxesh P Patel
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Kristopher W Krausz
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Margaret A Goodell
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Benjamin A T Rodriguez
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
- Valo Health, Boston, Massachusetts
| | - Paul S Meltzer
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Peter D Aplan
- Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland.
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15
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Silva A, Almeida ARM, Cachucho A, Neto JL, Demeyer S, de Matos M, Hogan T, Li Y, Meijerink J, Cools J, Grosso AR, Seddon B, Barata JT. Overexpression of wild-type IL-7Rα promotes T-cell acute lymphoblastic leukemia/lymphoma. Blood 2021; 138:1040-1052. [PMID: 33970999 PMCID: PMC8462360 DOI: 10.1182/blood.2019000553] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 04/15/2021] [Indexed: 12/02/2022] Open
Abstract
Tight regulation of IL-7Rα expression is essential for normal T-cell development. IL-7Rα gain-of-function mutations are known drivers of T-cell acute lymphoblastic leukemia (T-ALL). Although a subset of patients with T-ALL display high IL7R messenger RNA levels and cases with IL7R gains have been reported, the impact of IL-7Rα overexpression, rather than mutational activation, during leukemogenesis remains unclear. In this study, overexpressed IL-7Rα in tetracycline-inducible Il7r transgenic and Rosa26 IL7R knockin mice drove potential thymocyte self-renewal, and thymus hyperplasia related to increased proliferation of T-cell precursors, which subsequently infiltrated lymph nodes, spleen, and bone marrow, ultimately leading to fatal leukemia. The tumors mimicked key features of human T-ALL, including heterogeneity in immunophenotype and genetic subtype between cases, frequent hyperactivation of the PI3K/Akt pathway paralleled by downregulation of p27Kip1 and upregulation of Bcl-2, and gene expression signatures evidencing activation of JAK/STAT, PI3K/Akt/mTOR and Notch signaling. Notably, we also found that established tumors may no longer require high levels of IL-7R expression upon secondary transplantation and progressed in the absence of IL-7, but remain sensitive to inhibitors of IL-7R-mediated signaling ruxolitinib (Jak1), AZD1208 (Pim), dactolisib (PI3K/mTOR), palbociclib (Cdk4/6), and venetoclax (Bcl-2). The relevance of these findings for human disease are highlighted by the fact that samples from patients with T-ALL with high wild-type IL7R expression display a transcriptional signature resembling that of IL-7-stimulated pro-T cells and, critically, of IL7R-mutant cases of T-ALL. Overall, our study demonstrates that high expression of IL-7Rα can promote T-cell tumorigenesis, even in the absence of IL-7Rα mutational activation.
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Affiliation(s)
- Ana Silva
- Institute of Immunity and Transplantation, Division of Infection and Immunity, University College London, London, United Kingdom
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Afonso R M Almeida
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Ana Cachucho
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - João L Neto
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Sofie Demeyer
- Vlaams Instituut voor Biotechnologie (VIB) Center for Cancer Biology
- Katholieke Universiteit (KU) Leuven Center for Human Genetics, Katholieke Universiteit (VIB-KU) Leuven, Leuven, Belgium
| | - Mafalda de Matos
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Thea Hogan
- Institute of Immunity and Transplantation, Division of Infection and Immunity, University College London, London, United Kingdom
| | - Yunlei Li
- Department of Pathology Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jules Meijerink
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.; and
| | - Jan Cools
- Vlaams Instituut voor Biotechnologie (VIB) Center for Cancer Biology
| | - Ana Rita Grosso
- Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Unidade de Ciências Biomoleculares Aplicadas (UCIBIO), Universidade NOVA de Lisboa, Caparica, Portugal
| | - Benedict Seddon
- Institute of Immunity and Transplantation, Division of Infection and Immunity, University College London, London, United Kingdom
| | - João T Barata
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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16
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Wang J, Farkas C, Benyoucef A, Carmichael C, Haigh K, Wong N, Huylebroeck D, Stemmler MP, Brabletz S, Brabletz T, Nefzger CM, Goossens S, Berx G, Polo JM, Haigh JJ. Interplay between the EMT transcription factors ZEB1 and ZEB2 regulates hematopoietic stem and progenitor cell differentiation and hematopoietic lineage fidelity. PLoS Biol 2021; 19:e3001394. [PMID: 34550965 PMCID: PMC8489726 DOI: 10.1371/journal.pbio.3001394] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 10/04/2021] [Accepted: 08/20/2021] [Indexed: 01/03/2023] Open
Abstract
The ZEB2 transcription factor has been demonstrated to play important roles in hematopoiesis and leukemic transformation. ZEB1 is a close family member of ZEB2 but has remained more enigmatic concerning its roles in hematopoiesis. Here, we show using conditional loss-of-function approaches and bone marrow (BM) reconstitution experiments that ZEB1 plays a cell-autonomous role in hematopoietic lineage differentiation, particularly as a positive regulator of monocyte development in addition to its previously reported important role in T-cell differentiation. Analysis of existing single-cell (sc) RNA sequencing (RNA-seq) data of early hematopoiesis has revealed distinctive expression differences between Zeb1 and Zeb2 in hematopoietic stem and progenitor cell (HSPC) differentiation, with Zeb2 being more highly and broadly expressed than Zeb1 except at a key transition point (short-term HSC [ST-HSC]➔MPP1), whereby Zeb1 appears to be the dominantly expressed family member. Inducible genetic inactivation of both Zeb1 and Zeb2 using a tamoxifen-inducible Cre-mediated approach leads to acute BM failure at this transition point with increased long-term and short-term hematopoietic stem cell numbers and an accompanying decrease in all hematopoietic lineage differentiation. Bioinformatics analysis of RNA-seq data has revealed that ZEB2 acts predominantly as a transcriptional repressor involved in restraining mature hematopoietic lineage gene expression programs from being expressed too early in HSPCs. ZEB1 appears to fine-tune this repressive role during hematopoiesis to ensure hematopoietic lineage fidelity. Analysis of Rosa26 locus–based transgenic models has revealed that Zeb1 as well as Zeb2 cDNA-based overexpression within the hematopoietic system can drive extramedullary hematopoiesis/splenomegaly and enhance monocyte development. Finally, inactivation of Zeb2 alone or Zeb1/2 together was found to enhance survival in secondary MLL-AF9 acute myeloid leukemia (AML) models attesting to the oncogenic role of ZEB1/2 in AML. This study shows that the closely related transcription factors ZEB1 and ZEB2 cooperate to restrain myeloid and lymphoid differentiation programs in hematopoietic stem and progenitor cells, ensuring fidelity of differentiation in multiple lineages.
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Affiliation(s)
- Jueqiong Wang
- Australian Centre for Blood Diseases, Monash University, Melbourne, Australia
| | - Carlos Farkas
- Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada
| | - Aissa Benyoucef
- Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada
| | | | - Katharina Haigh
- Australian Centre for Blood Diseases, Monash University, Melbourne, Australia
- Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada
| | - Nick Wong
- Australian Centre for Blood Diseases, Monash University, Melbourne, Australia
| | - Danny Huylebroeck
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, the Netherlands
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Marc P. Stemmler
- Department of Experimental Medicine 1, Nikolaus-Fiebiger-Centre for Molecular Medicine, FAU University Erlangen-Nürnberg, Erlangen, Germany
| | - Simone Brabletz
- Department of Experimental Medicine 1, Nikolaus-Fiebiger-Centre for Molecular Medicine, FAU University Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Brabletz
- Department of Experimental Medicine 1, Nikolaus-Fiebiger-Centre for Molecular Medicine, FAU University Erlangen-Nürnberg, Erlangen, Germany
| | - Christian M. Nefzger
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Melbourne, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Australia
| | - Steven Goossens
- Molecular and Cellular Oncology Laboratory, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University and University Hospital, Ghent, Belgium
| | - Geert Berx
- Molecular and Cellular Oncology Laboratory, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Jose M. Polo
- Department of Experimental Medicine 1, Nikolaus-Fiebiger-Centre for Molecular Medicine, FAU University Erlangen-Nürnberg, Erlangen, Germany
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Melbourne, Australia
| | - Jody J. Haigh
- Australian Centre for Blood Diseases, Monash University, Melbourne, Australia
- Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada
- * E-mail:
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17
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BCL11B, the Cerberus of human leukemia. Blood 2021; 138:741-743. [PMID: 34473234 DOI: 10.1182/blood.2021011856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/03/2021] [Indexed: 11/20/2022] Open
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18
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Birkhoff JC, Brouwer RWW, Kolovos P, Korporaal AL, Bermejo-Santos A, Boltsis I, Nowosad K, van den Hout MCGN, Grosveld FG, van IJcken WFJ, Huylebroeck D, Conidi A. Targeted chromatin conformation analysis identifies novel distal neural enhancers of ZEB2 in pluripotent stem cell differentiation. Hum Mol Genet 2021; 29:2535-2550. [PMID: 32628253 PMCID: PMC7471508 DOI: 10.1093/hmg/ddaa141] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 12/25/2022] Open
Abstract
The transcription factor zinc finger E-box binding protein 2 (ZEB2) controls embryonic and adult cell fate decisions and cellular maturation in many stem/progenitor cell types. Defects in these processes in specific cell types underlie several aspects of Mowat–Wilson syndrome (MOWS), which is caused by ZEB2 haplo-insufficiency. Human ZEB2, like mouse Zeb2, is located on chromosome 2 downstream of a ±3.5 Mb-long gene-desert, lacking any protein-coding gene. Using temporal targeted chromatin capture (T2C), we show major chromatin structural changes based on mapping in-cis proximities between the ZEB2 promoter and this gene desert during neural differentiation of human-induced pluripotent stem cells, including at early neuroprogenitor cell (NPC)/rosette state, where ZEB2 mRNA levels increase significantly. Combining T2C with histone-3 acetylation mapping, we identified three novel candidate enhancers about 500 kb upstream of the ZEB2 transcription start site. Functional luciferase-based assays in heterologous cells and NPCs reveal co-operation between these three enhancers. This study is the first to document in-cis Regulatory Elements located in ZEB2’s gene desert. The results further show the usability of T2C for future studies of ZEB2 REs in differentiation and maturation of multiple cell types and the molecular characterization of newly identified MOWS patients that lack mutations in ZEB2 protein-coding exons.
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Affiliation(s)
- Judith C Birkhoff
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Rutger W W Brouwer
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands.,Center for Biomics, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Petros Kolovos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis 68100, Greece
| | - Anne L Korporaal
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Ana Bermejo-Santos
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Ilias Boltsis
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Karol Nowosad
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands.,Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin 20-093, Poland
| | - Mirjam C G N van den Hout
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands.,Center for Biomics, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Frank G Grosveld
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Wilfred F J van IJcken
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands.,Center for Biomics, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
| | - Danny Huylebroeck
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands.,Department of Development and Regeneration, KU Leuven, Leuven B-3000, Belgium
| | - Andrea Conidi
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, CN 3015, The Netherlands
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19
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Deregulation of the Interleukin-7 Signaling Pathway in Lymphoid Malignancies. Pharmaceuticals (Basel) 2021; 14:ph14050443. [PMID: 34066732 PMCID: PMC8151260 DOI: 10.3390/ph14050443] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 12/21/2022] Open
Abstract
The cytokine interleukin-7 (IL-7) and its receptor are critical for lymphoid cell development. The loss of IL-7 signaling causes severe combined immunodeficiency, whereas gain-of-function alterations in the pathway contribute to malignant transformation of lymphocytes. Binding of IL-7 to the IL-7 receptor results in the activation of the JAK-STAT, PI3K-AKT and Ras-MAPK pathways, each contributing to survival, cell cycle progression, proliferation and differentiation. Here, we discuss the role of deregulated IL-7 signaling in lymphoid malignancies of B- and T-cell origin. Especially in T-cell leukemia, more specifically in T-cell acute lymphoblastic leukemia and T-cell prolymphocytic leukemia, a high frequency of mutations in components of the IL-7 signaling pathway are found, including alterations in IL7R, IL2RG, JAK1, JAK3, STAT5B, PTPN2, PTPRC and DNM2 genes.
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20
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The EMT modulator SNAI1 contributes to AML pathogenesis via its interaction with LSD1. Blood 2021; 136:957-973. [PMID: 32369597 DOI: 10.1182/blood.2019002548] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 04/15/2020] [Indexed: 12/21/2022] Open
Abstract
Modulators of epithelial-to-mesenchymal transition (EMT) have recently emerged as novel players in the field of leukemia biology. The mechanisms by which EMT modulators contribute to leukemia pathogenesis, however, remain to be elucidated. Here we show that overexpression of SNAI1, a key modulator of EMT, is a pathologically relevant event in human acute myeloid leukemia (AML) that contributes to impaired differentiation, enhanced self-renewal, and proliferation of immature myeloid cells. We demonstrate that ectopic expression of Snai1 in hematopoietic cells predisposes mice to AML development. This effect is mediated by interaction with the histone demethylase KDM1A/LSD1. Our data shed new light on the role of SNAI1 in leukemia development and identify a novel mechanism of LSD1 corruption in cancer. This is particularly pertinent given the current interest surrounding the use of LSD1 inhibitors in the treatment of multiple different malignancies, including AML.
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21
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Lux S, Blätte TJ, Gillissen B, Richter A, Cocciardi S, Skambraks S, Schwarz K, Schrezenmeier H, Döhner H, Döhner K, Dolnik A, Bullinger L. Deregulated expression of circular RNAs in acute myeloid leukemia. Blood Adv 2021; 5:1490-1503. [PMID: 33683343 PMCID: PMC7948263 DOI: 10.1182/bloodadvances.2020003230] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/28/2021] [Indexed: 02/07/2023] Open
Abstract
Circular RNAs (circRNAs) are dynamically regulated during differentiation and show cell type-specific expression, which is altered in cancer and can have a direct impact on its various hallmarks. We hypothesized that circRNA expression is deregulated in acute myeloid leukemia (AML) and that circRNA candidates might contribute to the pathogenesis of the disease. To identify leukemia-associated and differentiation-independent changes in circRNA expression, we determined the circular RNAome of 61 AML patients and 16 healthy hematopoietic stem and progenitor cell (HSPC) samples using ribosomal RNA-depleted RNA sequencing. We found hundreds of circRNAs that were differentially expressed between AML and healthy HSPCs. Gene set analysis found that many of these circRNAs were transcribed from genes implicated in leukemia biology. We discovered a circRNA derived from the T-cell transcription factor gene B cell CLL/lymphoma 11B, circBCL11B, which was exclusively expressed in AML patients, but not detected in healthy HSPCs, and associated with a T-cell-like gene expression signature. We were able to validate this finding in an independent cohort of 332 AML patients. Knockdown of circBCL11B had a negative effect on leukemic cell proliferation and resulted in increased cell death of leukemic cells, thereby suggesting circBCL11B as a novel functionally relevant candidate in AML pathogenesis. In summary, our study enables comprehensive insights into circRNA expression changes upon leukemic transformation and provides valuable information on the biology of leukemic cells and potential novel pathway dependencies that are relevant for AML therapy.
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Affiliation(s)
- Susanne Lux
- Internal Medicine III, University Hospital Ulm, Ulm, Germany
| | - Tamara J Blätte
- Internal Medicine III, University Hospital Ulm, Ulm, Germany
- Department of Hematology, Oncology, and Tumorimmunology, Charité University Medicine, Berlin, Germany
| | - Bernhard Gillissen
- Department of Hematology, Oncology, and Tumorimmunology, Charité University Medicine, Berlin, Germany
| | - Antje Richter
- Department of Hematology, Oncology, and Tumorimmunology, Charité University Medicine, Berlin, Germany
| | | | | | - Klaus Schwarz
- Institute for Transfusion Medicine, University of Ulm, Ulm, Germany; and
- Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Donor Service Baden-Wuerttemberg-Hessen, Ulm, Germany
| | - Hubert Schrezenmeier
- Institute for Transfusion Medicine, University of Ulm, Ulm, Germany; and
- Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Donor Service Baden-Wuerttemberg-Hessen, Ulm, Germany
| | - Hartmut Döhner
- Internal Medicine III, University Hospital Ulm, Ulm, Germany
| | | | - Anna Dolnik
- Internal Medicine III, University Hospital Ulm, Ulm, Germany
- Department of Hematology, Oncology, and Tumorimmunology, Charité University Medicine, Berlin, Germany
| | - Lars Bullinger
- Internal Medicine III, University Hospital Ulm, Ulm, Germany
- Department of Hematology, Oncology, and Tumorimmunology, Charité University Medicine, Berlin, Germany
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22
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Zaliova M, Potuckova E, Lukes J, Winkowska L, Starkova J, Janotova I, Sramkova L, Stary J, Zuna J, Stanulla M, Zimmermann M, Bornhauser B, Bourquin JP, Eckert C, Cario G, Trka J. Frequency and prognostic impact of ZEB2 H1038 and Q1072 mutations in childhood B-other acute lymphoblastic leukemia. Haematologica 2021; 106:886-890. [PMID: 32499245 PMCID: PMC7927996 DOI: 10.3324/haematol.2020.249094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Indexed: 12/21/2022] Open
Affiliation(s)
- Marketa Zaliova
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic,University Hospital Motol, Prague, Czech Republic
| | - Eliska Potuckova
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Julius Lukes
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Lucie Winkowska
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Julia Starkova
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Lucie Sramkova
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic,University Hospital Motol, Prague, Czech Republic
| | - Jan Stary
- Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic,University Hospital Motol, Prague, Czech Republic
| | - Jan Zuna
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic,University Hospital Motol, Prague, Czech Republic
| | - Martin Stanulla
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Martin Zimmermann
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Beat Bornhauser
- Division of Pediatric Oncology, University Children's Hospital, Zürich, Switzerland
| | - Jean-Pierre Bourquin
- Division of Pediatric Oncology, University Children's Hospital, Zürich, Switzerland
| | - Cornelia Eckert
- Department of Pediatric Oncology/Hematology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,German Cancer Consortium and German Cancer Research Center, Heidelberg, Germany
| | - Gunnar Cario
- Department of Pediatrics, University Medical Center Schleswig- Holstein, Kiel, Germany
| | - Jan Trka
- CLIP: Childhood Leukemia Investigation Prague, Prague, Czech Republic,Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Prague, Czech Republic,University Hospital Motol, Prague, Czech Republic
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Bednarz-Misa I, Bromke MA, Krzystek-Korpacka M. Interleukin (IL)-7 Signaling in the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1290:9-49. [PMID: 33559853 DOI: 10.1007/978-3-030-55617-4_2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Interleukin (IL)-7 plays an important immunoregulatory role in different types of cells. Therefore, it attracts researcher's attention, but despite the fact, many aspects of its modulatory action, as well as other functionalities, are still poorly understood. The review summarizes current knowledge on the interleukin-7 and its signaling cascade in context of cancer development. Moreover, it provides a cancer-type focused description of the involvement of IL-7 in solid tumors, as well as hematological malignancies.The interleukin has been discovered as a growth factor crucial for the early lymphocyte development and supporting the growth of malignant cells in certain leukemias and lymphomas. Therefore, its targeting has been explored as a treatment modality in hematological malignancies, while the unique ability to expand lymphocyte populations selectively and without hyperinflammation has been used in experimental immunotherapies in patients with lymphopenia. Ever since the early research demonstrated a reduced growth of solid tumors in the presence of IL-7, the interleukin application in boosting up the anticancer immunity has been investigated. However, a growing body of evidence indicative of IL-7 upregulation in carcinomas, facilitating tumor growth and metastasis and aiding drug-resistance, is accumulating. It therefore becomes increasingly apparent that the response to the IL-7 stimulus strongly depends on cell type, their developmental stage, and microenvironmental context. The interleukin exerts its regulatory action mainly through phosphorylation events in JAK/STAT and PI3K/Akt pathways, while the significance of MAPK pathway seems to be limited to solid tumors. Given the unwavering interest in IL-7 application in immunotherapy, a better understanding of interleukin role, source in tumor microenvironment, and signaling pathways, as well as the identification of cells that are likely to respond should be a research priority.
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Affiliation(s)
- Iwona Bednarz-Misa
- Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Mariusz A Bromke
- Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland
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24
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Yang J, Xu L, Wu M, Fang H, Lu Y, Shi C, Wang Y, Jiang S, Ma Q, Li Z, Zhang L, Zhang L. Paeonol derivative-6 attenuates inflammation by activating ZEB2 in acute liver injury. Int Immunopharmacol 2021; 91:107235. [PMID: 33326919 DOI: 10.1016/j.intimp.2020.107235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/13/2020] [Accepted: 11/21/2020] [Indexed: 12/17/2022]
Abstract
Paeonol is a natural phenolic compound and isolated as an active ingredient from Moutan Cortex. Paeonol derivative-6 (DPF-6) is a derivative of paeonol improved in water solubility and bioavailability. Previous studies have reported that paeonol possesses a variety of pharmacological activities, such as antioxidant and anti-inflammatory properties. Moreover, we have previously verified that DPF-6 has anti-inflammatory effects. However, the role and fundamental mechanism of DPF-6 in acute liver injury (ALI) was still unclear. In this study, we indicated that DPF-6 inhibited inflammation and the expression of TNF-α, IL-6 and IL-1β in liver tissues and LPS-mediated L-02 cells, concomitant with the upregulated expression of ZEB2. More importantly, it was demonstrated that overexpression of ZEB2 inhibited the expression level of TNF-α, IL-6 and IL-1β in LPS-mediated L-02 cells. In contrast, knockdown of ZEB2 increased the expression level of TNF-α, IL-6 and IL-1β in LPS-mediated L-02 cells. Further studies showed that ZEB2 inhibited the inflammation cytokine secretion via JNK signaling pathway in L-02 cells. Taken together, all the above results indicate that DPF-6 increased the expression of ZEB2, consequently inhibited inflammation cytokine secretion through JNK signaling pathway, which may be utilized as a potential anti-inflammation monomeric compound in the treatment of ALI.
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Affiliation(s)
- Junfa Yang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Lei Xu
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Meifei Wu
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Hui Fang
- Hangzhou Normal University Affiliated Hospital, Hangzhou 310015, China
| | - Yuchen Lu
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | | | - Yang Wang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Shaowei Jiang
- The First Affiliated Hospital of Anhui Medical Unversity, Hefei, China
| | - Qiang Ma
- The Second Hosipital of Anhui Medical University, Hefei, Anhui Province, China
| | - Zeng Li
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Lingling Zhang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China.
| | - Lei Zhang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei 230032, China.
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25
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Rodrigues GOL, Cramer SD, Winer HY, Hixon JA, Li W, Yunes JA, Durum SK. Mutations that collaborate with IL-7Ra signaling pathways to drive ALL. Adv Biol Regul 2021; 80:100788. [PMID: 33578108 DOI: 10.1016/j.jbior.2021.100788] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/11/2021] [Indexed: 12/30/2022]
Abstract
The IL-7 pathway is required for normal T cell development and survival. In recent years the pathway has been shown to be a major driver of acute lymphoblastic leukemia (ALL), the most common cancer in children. Gain-of-function mutations in the alpha chain of the IL-7 receptor found in ALL patients clearly demonstrated that this pathway was a driver. However mutant IL-7R alone was insufficient to transform primary T cell progenitors, indicating that cooperating mutations were required. Here we review evidence for additional oncogenic mutations in the IL-7 pathway. We discuss several oncogenes, loss of tumor suppressor genes and epigenetic effects that can cooperate with mutant IL-7 receptor. These include NRas, HOXA, TLX3, Notch 1, Arf, PHF6, WT1, PRC, PTPN2 and CK2. As new therapeutics targeting the IL-7 pathway are developed, combination with agents directed to cooperating pathways offer hope for novel therapies for ALL.
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Affiliation(s)
- Gisele O L Rodrigues
- Cytokines and Immunity Section, Laboratory of Cancer Immunometabolism, National Cancer Institute, National Institutes of Health (NIH), Frederick, MD, USA; Molecular Biology Laboratory, Boldrini Children's Center, Campinas, Brazil; Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Sarah D Cramer
- Cytokines and Immunity Section, Laboratory of Cancer Immunometabolism, National Cancer Institute, National Institutes of Health (NIH), Frederick, MD, USA; Comparative Biomedical Scientist Training Program, NIH, Bethesda, MD, USA; Department of Veterinary Medicine, University of Maryland, College Park, MD, USA
| | - Hila Y Winer
- Cytokines and Immunity Section, Laboratory of Cancer Immunometabolism, National Cancer Institute, National Institutes of Health (NIH), Frederick, MD, USA
| | - Julie A Hixon
- Cytokines and Immunity Section, Laboratory of Cancer Immunometabolism, National Cancer Institute, National Institutes of Health (NIH), Frederick, MD, USA
| | - WenQing Li
- Cytokines and Immunity Section, Laboratory of Cancer Immunometabolism, National Cancer Institute, National Institutes of Health (NIH), Frederick, MD, USA
| | - José Andres Yunes
- Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Scott K Durum
- Cytokines and Immunity Section, Laboratory of Cancer Immunometabolism, National Cancer Institute, National Institutes of Health (NIH), Frederick, MD, USA.
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26
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De Conti G, Gruszka AM, Valli D, Cammarata AU, Righi M, Mazza M, Pelicci PG. A Novel Platform to Test In Vivo Single Gene Dependencies in t(8,21) and t(15,17) AML Confirms Zeb2 as Leukemia Target. Cancers (Basel) 2020; 12:cancers12123768. [PMID: 33327558 PMCID: PMC7765008 DOI: 10.3390/cancers12123768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/28/2020] [Accepted: 12/09/2020] [Indexed: 12/02/2022] Open
Abstract
Simple Summary Mouse models are extensively used to study human diseases, including cancer. They are particularly useful to evaluate the role of specific genes in the tumorigenic process. The platform we present allows to effectively induce in vivo silencing of any potential candidate gene in two acute myeloid leukemia mouse models, with the scope of furthering the understanding of this gene’s role in the biology of leukemia. Abstract The increased usage of high-throughput technologies in cancer research, including genetic and drug screens, generates large sets of candidate targets that need to be functionally validated for their roles in tumor development. Thus, reliable and robust in vivo model systems are needed to perform reverse genetic experiments. Ideally, these models should allow for a conditional silencing of the target and an unambiguous identification of engineered cancer cells. Here, we present a platform consisting of: (i) t(8;21) and t(15;17) driven acute myeloid leukemia (AML) transgenic mice with constitutive expression of green fluorescent protein (GFP) and inducible expression of Cre recombinase, and (ii) REX, a modified pSico lentiviral vector for inducible shRNA expression and red fluorescent protein (RFP) as a selection marker. In this system, leukemic cells from transgenic mice are transduced with REX, flow sorted, and transplanted into syngeneic hosts. Gene interference is induced in established tumors by tamoxifen treatment. Dual-color cell fluorescence guides the in vivo identification of shRNA interfered AML cells, monitoring engraftment and disease progression. We tested the platform by inducing knockdown of Zeb2, a gene upregulated by AML1-ETO and PML-RARα oncogenes in pre-leukemic hematopoietic stem cell compartment, and observed a significant delay in leukemia onset. This proves the power and utility of the platform and confirms Zeb2 contribution to the pathogenesis of AML.
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Affiliation(s)
- Giulia De Conti
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (G.D.C.); (A.M.G.); (D.V.); (A.U.C.); (M.R.); (P.G.P.)
| | - Alicja M. Gruszka
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (G.D.C.); (A.M.G.); (D.V.); (A.U.C.); (M.R.); (P.G.P.)
| | - Debora Valli
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (G.D.C.); (A.M.G.); (D.V.); (A.U.C.); (M.R.); (P.G.P.)
| | - Andrea Umberto Cammarata
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (G.D.C.); (A.M.G.); (D.V.); (A.U.C.); (M.R.); (P.G.P.)
| | - Matteo Righi
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (G.D.C.); (A.M.G.); (D.V.); (A.U.C.); (M.R.); (P.G.P.)
| | - Massimiliano Mazza
- Immunotherapy, Cell Therapy and Biobank, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy
- Correspondence:
| | - Pier Giuseppe Pelicci
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; (G.D.C.); (A.M.G.); (D.V.); (A.U.C.); (M.R.); (P.G.P.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
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27
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Marković I, Savvides SN. Modulation of Signaling Mediated by TSLP and IL-7 in Inflammation, Autoimmune Diseases, and Cancer. Front Immunol 2020; 11:1557. [PMID: 32849527 PMCID: PMC7396566 DOI: 10.3389/fimmu.2020.01557] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 06/12/2020] [Indexed: 12/30/2022] Open
Abstract
Thymic Stromal Lymphopoietin (TSLP) and Interleukin-7 (IL-7) are widely studied cytokines within distinct branches of immunology. On one hand, TSLP is crucially important for mediating type 2 immunity at barrier surfaces and has been linked to widespread allergic and inflammatory diseases of the airways, skin, and gut. On the other hand, IL-7 operates at the foundations of T-cell and innate lymphoid cell (ILC) development and homeostasis and has been associated with cancer. Yet, TSLP and IL-7 are united by key commonalities in their structure and the structural basis of the receptor assemblies they mediate to initiate cellular signaling, in particular their cross-utilization of IL-7Rα. As therapeutic targeting of TSLP and IL-7 via diverse approaches is reaching advanced stages and in light of the plethora of mechanistic and structural data on receptor signaling mediated by the two cytokines, the time is ripe to provide integrated views of such knowledge. Here, we first discuss the major pathophysiological roles of TSLP and IL-7 in autoimmune diseases, inflammation and cancer. Subsequently, we curate structural and mechanistic knowledge about receptor assemblies mediated by the two cytokines. Finally, we review therapeutic avenues targeting TSLP and IL-7 signaling. We envision that such integrated view of the mechanism, structure, and modulation of signaling assemblies mediated by TSLP and IL-7 will enhance and fine-tune the development of more effective and selective approaches to further interrogate the role of TSLP and IL-7 in physiology and disease.
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Affiliation(s)
- Iva Marković
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Unit for Structural Biology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Savvas N Savvides
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Unit for Structural Biology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
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28
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Zeb2 drives invasive and microbiota-dependent colon carcinoma. ACTA ACUST UNITED AC 2020; 1:620-634. [DOI: 10.1038/s43018-020-0070-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022]
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29
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Gianni F, Belver L, Ferrando A. The Genetics and Mechanisms of T-Cell Acute Lymphoblastic Leukemia. Cold Spring Harb Perspect Med 2020; 10:a035246. [PMID: 31570389 PMCID: PMC7050584 DOI: 10.1101/cshperspect.a035246] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematologic malignancy derived from early T-cell progenitors. The recognition of clinical, genetic, transcriptional, and biological heterogeneity in this disease has already translated into new prognostic biomarkers, improved leukemia animal models, and emerging targeted therapies. This work reviews our current understanding of the molecular mechanisms of T-ALL.
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Affiliation(s)
- Francesca Gianni
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York 10032, USA
| | - Laura Belver
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York 10032, USA
| | - Adolfo Ferrando
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York 10032, USA
- Department of Pathology, Columbia University Medical Center, New York, New York 10032, USA
- Department of Pediatrics, Columbia University Medical Center, New York, New York 10032, USA
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30
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Flip the coin: IL-7 and IL-7R in health and disease. Nat Immunol 2019; 20:1584-1593. [PMID: 31745336 DOI: 10.1038/s41590-019-0479-x] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 07/26/2019] [Indexed: 12/14/2022]
Abstract
The cytokine IL-7 and its receptor, IL-7R, are critical for T cell and, in the mouse, B cell development, as well as differentiation and survival of naive T cells, and generation and maintenance of memory T cells. They are also required for innate lymphoid cell (ILC) development and maintenance, and consequently for generation of lymphoid structures and barrier defense. Here we discuss the central role of IL-7 and IL-7R in the lymphoid system and highlight the impact of their deregulation, placing a particular emphasis on their 'dark side' as promoters of cancer development. We also explore therapeutic implications and opportunities associated with either positive or negative modulation of the IL-7-IL-7R signaling axis.
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31
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Paganelli F, Lonetti A, Anselmi L, Martelli AM, Evangelisti C, Chiarini F. New advances in targeting aberrant signaling pathways in T-cell acute lymphoblastic leukemia. Adv Biol Regul 2019; 74:100649. [PMID: 31523031 DOI: 10.1016/j.jbior.2019.100649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/24/2019] [Accepted: 09/03/2019] [Indexed: 10/26/2022]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive disorder characterized by malignant transformation of immature progenitors primed towards T-cell development. Over the past 15 years, advances in the molecular characterization of T-ALL have uncovered oncogenic key drivers and crucial signaling pathways of this disease, opening new chances for the development of novel therapeutic strategies. Currently, T-ALL patients are still treated with aggressive therapies, consisting of high dose multiagent chemotherapy. To minimize and overcome the unfavorable effects of these regimens, it is critical to identify innovative targets and test selective inhibitors of such targets. Major efforts are being made to develop small molecules against deregulated signaling pathways, which sustain T-ALL cell growth, survival, metabolism, and drug-resistance. This review will focus on recent improvements in the understanding of the signaling pathways involved in the pathogenesis of T-ALL and on the challenging opportunities for T-ALL targeted therapies.
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Affiliation(s)
- Francesca Paganelli
- Institute of Molecular Genetics, Luigi Luca Cavalli-Sforza-CNR National Research Council of Italy, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Annalisa Lonetti
- "Giorgio Prodi" Cancer Research Center, University of Bologna, Bologna, Italy
| | - Laura Anselmi
- Department of Biomedical, Metabolic, and Neural Sciences, Section of Morphology, Signal Transduction Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Alberto M Martelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Camilla Evangelisti
- Institute of Molecular Genetics, Luigi Luca Cavalli-Sforza-CNR National Research Council of Italy, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Francesca Chiarini
- Institute of Molecular Genetics, Luigi Luca Cavalli-Sforza-CNR National Research Council of Italy, Bologna, Italy; IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.
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32
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Fardi M, Alivand M, Baradaran B, Farshdousti Hagh M, Solali S. The crucial role of ZEB2: From development to epithelial-to-mesenchymal transition and cancer complexity. J Cell Physiol 2019; 234:14783-14799. [PMID: 30773635 DOI: 10.1002/jcp.28277] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/13/2019] [Accepted: 01/15/2019] [Indexed: 01/24/2023]
Abstract
Zinc finger E-box binding homeobox 2 (ZEB2) is a DNA-binding transcription factor, which is mainly involved in epithelial-to-mesenchymal transition (EMT). EMT is a conserved process during which mature and adherent epithelial-like state is converted into a mobile mesenchymal state. Emerging data indicate that ZEB2 plays a pivotal role in EMT-induced processes such as development, differentiation, and malignant mechanisms, for example, drug resistance, cancer stem cell-like traits, apoptosis, survival, cell cycle arrest, tumor recurrence, and metastasis. In this regard, the understanding of mentioned subjects in the development of normal and cancerous cells could be helpful in cancer complexity of diagnosis and therapy. In this study, we review recent findings about the biological properties of ZEB2 in healthy and cancerous states to find new approaches for cancer treatment.
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Affiliation(s)
- Masoumeh Fardi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Saeed Solali
- Immunology Department, Tabriz University of Medical Sciences, Tabriz, Iran
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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33
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Moosic KB, Paila U, Olson KC, Dziewulska K, Wang TT, Xing JC, Ratan A, Feith DJ, Loughran TP, Olson TL. Genomics of LGL leukemia and select other rare leukemia/lymphomas. Best Pract Res Clin Haematol 2019; 32:196-206. [PMID: 31585620 PMCID: PMC6779335 DOI: 10.1016/j.beha.2019.06.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/04/2019] [Indexed: 01/04/2023]
Abstract
Genomic analysis of cancer offers the hope of identifying new treatments or aiding in the selection of existing treatments. Rare leukemias pose additional challenges in this regard as samples may be hard to acquire and when found the underlying pathway may not be attractive to drug development since so few individuals are affected. In this case, it can be useful to identify common mutational overlap among subsets of rare leukemias to increase the number of individuals that may benefit from a targeted therapy. This chapter examines the current mutational landscape of large granular lymphocyte (LGL) leukemia with a focus on STAT3 mutations, the most common mutation in LGL leukemia to date. We examined the linkage between these mutations and autoimmune symptoms and disorders, in cases of obvious and suspected LGL leukemia. We then summarized and compared mutations in a set of other rare leukemias that also have JAK/STAT signaling pathway activation brought about by genomic changes. These include T-cell acute lymphoblastic leukemia (T-ALL), T-cell prolymphocytic leukemia (T-PLL), cutaneous T-cell lymphoma (CTCL), select peripheral T-cell lymphoma (PTCL), and adult T-cell leukemia/lymphoma (ATLL). Though STAT3 activation is common in these leukemias, the way in which it is achieved, such as the activating cytokine pathway and/or the co-mutational background, is quite diverse.
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Affiliation(s)
- Katharine B Moosic
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Pathology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA.
| | - Umadevi Paila
- Center for Public Health Genomics, MSB-6111A, West Complex, 1335 Lee Street, Charlottesville, VA, 22908, USA.
| | - Kristine C Olson
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA.
| | - Karolina Dziewulska
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Pathology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA.
| | - T Tiffany Wang
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Microbiology, Immunology, and Cancer Biology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA.
| | - Jeffrey C Xing
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Biomedical Engineering, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA.
| | - Aakrosh Ratan
- Center for Public Health Genomics, MSB-6131F, West Complex, 1300 JPA, Charlottesville, VA, 22908, USA.
| | - David J Feith
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA.
| | - Thomas P Loughran
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA.
| | - Thomas L Olson
- University of Virginia Cancer Center, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA; Department of Medicine, Division of Hematology/Oncology, 345 Crispell Dr, PO Box 801378, Charlottesville, VA, 22908, USA.
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34
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ZEB2 in T-cells and T-ALL. Adv Biol Regul 2019; 74:100639. [PMID: 31383581 DOI: 10.1016/j.jbior.2019.100639] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/21/2019] [Accepted: 07/23/2019] [Indexed: 12/14/2022]
Abstract
The identification of the rare but recurrent t(2; 14)(q22; q32) translocation involving the ZEB2 locus in T-cell acute lymphoblastic leukemia, suggested that ZEB2 is an oncogenic driver of this high-risk subtype of leukemia. ZEB2, a zinc finger E-box homeobox binding transcription factor, is a master regulator of cellular plasticity and its expression is correlated with poor overall survival of cancer patients. Recent loss- and gain-of-function in the mouse revealed important roles of ZEB2 during different stages of hematopoiesis, including the T-cell lineage. Here, we summarize the roles of ZEB2 in T-cells, their development, and malignant transformation to T-ALL.
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35
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Pieters T, T'Sas S, Demoen L, Almeida A, Haenebalcke L, Matthijssens F, Lemeire K, D'Hont J, Van Rockeghem F, Hochepied T, Lintermans B, Reunes L, Lammens T, Berx G, Haigh JJ, Goossens S, Van Vlierberghe P. Novel strategy for rapid functional in vivo validation of oncogenic drivers in haematological malignancies. Sci Rep 2019; 9:10577. [PMID: 31332244 PMCID: PMC6646380 DOI: 10.1038/s41598-019-46853-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/05/2019] [Indexed: 12/17/2022] Open
Abstract
In cancer research, it remains challenging to functionally validate putative novel oncogenic drivers and to establish relevant preclinical models for evaluation of novel therapeutic strategies. Here, we describe an optimized and efficient pipeline for the generation of novel conditional overexpression mouse models in which putative oncogenes, along with an eGFP/Luciferase dual reporter, are expressed from the endogenous ROSA26 (R26) promoter. The efficiency of this approach was demonstrated by the generation and validation of novel R26 knock-in (KI) mice that allow conditional overexpression of Jarid2, Runx2, MN1 and a dominant negative allele of ETV6. As proof of concept, we confirm that MN1 overexpression in the hematopoietic lineage is sufficient to drive myeloid leukemia. In addition, we show that T-cell specific activation of MN1 in combination with loss of Pten increases tumour penetrance and stimulates the formation of Lyl1+ murine T-cell lymphoblastic leukemias or lymphomas (T-ALL/T-LBL). Finally, we demonstrate that these luciferase-positive murine AML and T-ALL/T-LBL cells are transplantable into immunocompromised mice allowing preclinical evaluation of novel anti-leukemic drugs in vivo.
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Affiliation(s)
- Tim Pieters
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Sara T'Sas
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Lisa Demoen
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - André Almeida
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Lieven Haenebalcke
- VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Filip Matthijssens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Kelly Lemeire
- VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jinke D'Hont
- VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Frederique Van Rockeghem
- VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Tino Hochepied
- VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Beatrice Lintermans
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Lindy Reunes
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Tim Lammens
- Cancer Research Institute Ghent, Ghent, Belgium.,Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium
| | - Geert Berx
- VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Jody J Haigh
- Mammalian Functional Genetics Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia.,Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Research Institute in Oncology and Hematology, Cancer Care Manitoba, Winnipeg, Manitoba, Canada
| | - Steven Goossens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium. .,VIB Inflammation Research Center, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium. .,Cancer Research Institute Ghent, Ghent, Belgium.
| | - Pieter Van Vlierberghe
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium. .,Cancer Research Institute Ghent, Ghent, Belgium.
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36
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De Smedt R, Morscio J, Goossens S, Van Vlierberghe P. Targeting steroid resistance in T-cell acute lymphoblastic leukemia. Blood Rev 2019; 38:100591. [PMID: 31353059 DOI: 10.1016/j.blre.2019.100591] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/15/2019] [Accepted: 07/18/2019] [Indexed: 12/16/2022]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is characterized by a variable response to steroids during induction and/or consolidation therapy. Notably, recent work suggested that these differences in glucocorticoid sensitivity might, at least in part, be mediated by hyperactivation of specific oncogenic pathways such as RAS/MEK/ERK, PI3K/AKT and IL7R/JAK/STAT. In this review, we elaborate on putative associations between aberrant signaling, therapy resistance, incidence of relapse and clinical outcome in human T-ALL. Furthermore, we emphasize that this potential association with clinical parameters might also be mediated by the tumor microenvironment as a result of increased sensitivity of leukemic T-cells towards cytokine induced signaling pathway activation. With this in mind, we provide an overview of small molecule inhibitors that might have clinical potential for the treatment of human T-ALL in the near future as a result of their ability to overcome steroid resistance thereby potentially increasing survival rates in this aggressive hematological neoplasm.
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Affiliation(s)
- Renate De Smedt
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Julie Morscio
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Steven Goossens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Pieter Van Vlierberghe
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent, Belgium.
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37
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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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38
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Goossens S, Wang J, Tremblay CS, De Medts J, T'Sas S, Nguyen T, Saw J, Haigh K, Curtis DJ, Van Vlierberghe P, Berx G, Taghon T, Haigh JJ. ZEB2 and LMO2 drive immature T-cell lymphoblastic leukemia via distinct oncogenic mechanisms. Haematologica 2019; 104:1608-1616. [PMID: 30679322 PMCID: PMC6669144 DOI: 10.3324/haematol.2018.207837] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 01/18/2019] [Indexed: 12/29/2022] Open
Abstract
ZEB1 and ZEB2 are structurally related E-box binding homeobox transcription factors that induce epithelial to mesenchymal transitions during development and disease. As such, they regulate cancer cell invasion, dissemination and metastasis of solid tumors. In addition, their expression is associated with the gain of cancer stem cell properties and resistance to therapy. Using conditional loss-of-function mice, we previously demonstrated that Zeb2 also plays pivotal roles in hematopoiesis, controlling important cell fate decisions, lineage commitment and fidelity. In addition, upon Zeb2 overexpression, mice spontaneously develop immature T-cell lymphoblastic leukemia. Here we show that pre-leukemic Zeb2-overexpressing thymocytes are characterized by a differentiation delay at beta-selection due to aberrant activation of the interleukin-7 receptor signaling pathway. Notably, and in contrast to Lmo2-overexpressing thymocytes, these pre-leukemic Zeb2-overexpressing T-cell progenitors display no acquired self-renewal properties. Finally, Zeb2 activation in more differentiated T-cell precursor cells can also drive malignant T-cell development, suggesting that the early T-cell differentiation delay is not essential for Zeb2-mediated leukemic transformation. Altogether, our data suggest that Zeb2 and Lmo2 drive malignant transformation of immature T-cell progenitors via distinct molecular mechanisms.
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Affiliation(s)
- Steven Goossens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium .,Department for Biomedical Molecular Biology, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Jueqiong Wang
- Mammalian Functional Genetics Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - Cedric S Tremblay
- Stem Cell Research Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - Jelle De Medts
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Sara T'Sas
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Department for Biomedical Molecular Biology, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Thao Nguyen
- Mammalian Functional Genetics Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - Jesslyn Saw
- Stem Cell Research Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - Katharina Haigh
- Mammalian Functional Genetics Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - David J Curtis
- Stem Cell Research Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - Pieter Van Vlierberghe
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Geert Berx
- Department for Biomedical Molecular Biology, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Jody J Haigh
- Mammalian Functional Genetics Group, Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia.,Department of Pharmacology and Therapeutics, Rady Faulty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Research Institute in Oncology and Hematology (RIOH), Cancer Care Manitoba, Winnipeg, Manitoba, Canada
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39
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Kumar A, Drusbosky LM, Meacham A, Turcotte M, Bhargav P, Vasista S, Usmani S, Pampana A, Basu K, Tyagi A, Lala D, Rajagopalan S, Birajdar SC, Alam A, Ghosh Roy K, Abbasi T, Vali S, Sengar M, Chinnaswamy G, Shah BD, Cogle CR. Computational modeling of early T-cell precursor acute lymphoblastic leukemia (ETP-ALL) to identify personalized therapy using genomics. Leuk Res 2019; 78:3-11. [PMID: 30641417 DOI: 10.1016/j.leukres.2019.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/04/2019] [Accepted: 01/05/2019] [Indexed: 01/07/2023]
Abstract
Early T-cell precursor acute lymphoblastic leukemia (ETP-ALL) is an aggressive hematological malignancy for which optimal therapeutic approaches are poorly characterized. Using computational biology modeling (CBM) in conjunction with genomic data from cell lines and individual patients, we generated disease-specific protein network maps that were used to identify unique characteristics associated with the mutational profiles of ETP-ALL compared to non-ETP-ALL (T-ALL) cases and simulated cellular responses to a digital library of FDA-approved and investigational agents. Genomics-based classification of ETP-ALL patients using CBM had a prediction sensitivity and specificity of 93% and 87%, respectively. This analysis identified key genomic and pathway characteristics that are distinct in ETP-ALL including deletion of nucleophosmin-1 (NPM1), mutations of which are used to direct therapeutic decisions in acute myeloid leukemia. Computational simulations based on mutational profiles of 62 ETP-ALL patient models identified 87 unique targeted combination therapies in 56 of the 62 patients despite actionable mutations being present in only 37% of ETP-ALL patients. Shortlisted two-drug combinations were predicted to be synergistic in 11 profiles and were validated by in vitro chemosensitivity assays. In conclusion, computational modeling was able to identify unique biomarkers and pathways for ETP-ALL, and identify new drug combinations for potential clinical testing.
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Affiliation(s)
- Ansu Kumar
- Cellworks Research India Pvt. Ltd., Bangalore, India
| | - Leylah M Drusbosky
- Department of Medicine/Division of Hematology Oncology, University of Florida, Gainesville, FL, USA
| | - Amy Meacham
- Department of Medicine/Division of Hematology Oncology, University of Florida, Gainesville, FL, USA
| | - Madeleine Turcotte
- Department of Medicine/Division of Hematology Oncology, University of Florida, Gainesville, FL, USA
| | | | | | | | | | - Kabya Basu
- Cellworks Research India Pvt. Ltd., Bangalore, India
| | - Anuj Tyagi
- Cellworks Research India Pvt. Ltd., Bangalore, India
| | - Deepak Lala
- Cellworks Research India Pvt. Ltd., Bangalore, India
| | | | | | - Aftab Alam
- Cellworks Research India Pvt. Ltd., Bangalore, India
| | | | | | | | - Manju Sengar
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India
| | | | | | - Christopher R Cogle
- Department of Medicine/Division of Hematology Oncology, University of Florida, Gainesville, FL, USA.
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40
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Oliveira ML, Akkapeddi P, Ribeiro D, Melão A, Barata JT. IL-7R-mediated signaling in T-cell acute lymphoblastic leukemia: An update. Adv Biol Regul 2019; 71:88-96. [PMID: 30249539 PMCID: PMC6386770 DOI: 10.1016/j.jbior.2018.09.012] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 01/09/2023]
Abstract
Interleukin 7 (IL-7) and its receptor (IL-7R, a heterodimer of IL-7Rα and γc) are essential for normal lymphoid development. In their absence, severe combined immunodeficiency occurs. By contrast, excessive IL-7/IL-7R-mediated signaling can drive lymphoid leukemia development, disease acceleration and resistance to chemotherapy. IL-7 and IL-7R activate three main pathways: STAT5, PI3K/Akt/mTOR and MEK/Erk, ultimately leading to the promotion of leukemia cell viability, cell cycle progression and growth. However, the contribution of each of these pathways towards particular functional outcomes is still not completely known and appears to differ between normal and malignant states. For example, IL-7 upregulates Bcl-2 in a PI3K/Akt/mTOR-dependent and STAT5-independent manner in T-ALL cells. This is a 'symmetric image' of what apparently happens in normal lymphoid cells, where PI3K/Akt/mTOR does not impact on Bcl-2 and regulates proliferation rather than survival. In this review, we provide an updated summary of the knowledge on IL-7/IL-7R-mediated signaling in the context of cancer, focusing mainly on T-cell acute lymphoblastic leukemia, where this axis has been more extensively studied.
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Affiliation(s)
- Mariana L Oliveira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
| | - Padma Akkapeddi
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
| | - Daniel Ribeiro
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
| | - Alice Melão
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
| | - João T Barata
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal.
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41
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Saito S, Kikuchi J, Koyama D, Sato S, Koyama H, Osada N, Kuroda Y, Akahane K, Inukai T, Umehara T, Furukawa Y. Eradication of Central Nervous System Leukemia of T-Cell Origin with a Brain-Permeable LSD1 Inhibitor. Clin Cancer Res 2018; 25:1601-1611. [PMID: 30518632 DOI: 10.1158/1078-0432.ccr-18-0919] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 09/28/2018] [Accepted: 11/28/2018] [Indexed: 12/12/2022]
Abstract
PURPOSE Lysine-specific demethylase 1 (LSD1) regulates several biological processes via the bifunctional modulation of enhancer functions. Recently, we reported that LSD1 overexpression is a founder abnormality of T-cell leukemogenesis and is maintained in fully transformed T-cell acute lymphoblastic leukemia (T-ALL) cells. On the basis of this finding, we attempted to develop novel LSD1 inhibitors effective for T-ALL with central nervous system (CNS) involvement. EXPERIMENTAL DESIGN We chemically modified the prototype LSD inhibitor tranylcypromine (TCP) and screened for cytotoxicity against TCP-resistant T-ALL cell lines. In vivo efficacy of novel LSD1 inhibitors was examined in immunodeficient mice transplanted with luciferase-expressing T-ALL cell lines, which faithfully reproduce human T-ALL with CNS involvement. RESULTS We found robust cytotoxicity against T-ALL cells, but not normal bone marrow progenitors, for two N-alkylated TCP derivatives, S2116 and S2157. The two compounds induced apoptosis in TCP-resistant T-ALL cells in vitro and in vivo by repressing transcription of the NOTCH3 and TAL1 genes through increased H3K9 methylation and reciprocal H3K27 deacetylation at superenhancer regions. Both S2116 and S2157 significantly retarded the growth of T-ALL cells in xenotransplanted mice and prolonged the survival of recipients as monotherapy and in combination with dexamethasone. Notably, S2157 could almost completely eradicate CNS leukemia because of its ability to efficiently pass through the blood-brain barrier. CONCLUSIONS These findings provide a molecular basis and rationale for the inclusion of a brain-permeable LSD1 inhibitor, S2157, in treatment strategies for T-ALL with CNS involvement.
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Affiliation(s)
- Shiori Saito
- Division of Stem Cell Regulation, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Jiro Kikuchi
- Division of Stem Cell Regulation, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Daisuke Koyama
- Division of Stem Cell Regulation, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Shin Sato
- Epigenetics Drug Discovery Unit, RIKEN Center for Life Science Technologies, Yokohama, Kanagawa, Japan
| | - Hiroo Koyama
- Drug Discovery Chemistry Platform Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama, Japan
| | - Naoki Osada
- Division of Stem Cell Regulation, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Yoshiaki Kuroda
- Division of Stem Cell Regulation, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Koshi Akahane
- Department of Pediatrics, School of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Takeshi Inukai
- Department of Pediatrics, School of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Takashi Umehara
- Epigenetics Drug Discovery Unit, RIKEN Center for Life Science Technologies, Yokohama, Kanagawa, Japan
| | - Yusuke Furukawa
- Division of Stem Cell Regulation, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan.
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42
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Wang XX, Wu D, Zhang L. Clinical and molecular characterization of early T-cell precursor acute lymphoblastic leukemia: Two cases report and literature review. Medicine (Baltimore) 2018; 97:e13856. [PMID: 30593187 PMCID: PMC6314700 DOI: 10.1097/md.0000000000013856] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
RATIONALE Early T-cell precursor acute lymphoblastic leukemia (ETP-ALL) is a small subtype of T-cell acute lymphoblastic leukemia with a typical immune-phenotype: lack of T-lineage cell surface markers CD1a and CD8 expression, weak or absent CD5 expression, at least one of the myeloid or hematopoietic stem cell markers. It is characterized by high rate of induction failure and the effective unified treatment strategies are still indeterminate. We present 2 ETP-ALL cases. PATIENT CONCERNS A 42-year-old man presented with abnormal hemogram for 4 months, intermittent fever for 2 months and cough for 1 week. A 27-year-old woman was admitted to the hospital for a fever and headache for that had persisted for 1 week. DIAGNOSIS The peripheral blood examination, the bone marrow aspiration and flow cytometry for both patients revealed ETP-ALL. INTERVENTIONS Both cases accepted chemotherapy including cytarabine. OUTCOMES In case one, the patient reached complete hematological remission with negative minimal residual detected by flow cytometry after the first circle of chemotherapy. In case 2, the patient received complete remission after the second circle of chemotherapy with high doses of cytarabine. LESSONS The application of the high-dose cytarabine in induction chemotherapy of ETP-ALL can bring better outcome. ETP-ALL with myeloid features may benefit from therapies used in myeloid malignancies.
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Yang J, Lu Y, Yang P, Chen Q, Wang Y, Ding Q, Xu T, Li X, Li C, Huang C, Meng X, Li J, Zhang L, Wang X. MicroRNA-145 induces the senescence of activated hepatic stellate cells through the activation of p53 pathway by ZEB2. J Cell Physiol 2018; 234:7587-7599. [PMID: 30479019 DOI: 10.1002/jcp.27521] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 09/10/2018] [Indexed: 12/11/2022]
Abstract
Activation of quiescent hepatic stellate cells (HSCs) is the major event in liver fibrosis, along with enhancement of cell proliferation and overproduction of extracellular matrix. Recent findings suggest that senescence of activated HSCs might limit the development of liver fibrosis. The p53, a guardian of the genome is associated with liver fibrosis, has been shown to regulate HSCs senescence. In this study, we report that microRNA-145 (miR-145) and p53 were downregulated in vivo and in vitro, concomitant with the enhanced expression of zinc finger E-box binding homeobox 2 (ZEB2). In addition, overexpression of miR-145 and p53 led to upregulation of the number of senescence-associated β-galactosidase-positive HSCs and the expression of senescence markers p16 and p21, along with the reduced abundance of HSC activation markers α-smooth muscle actin and type I collagen in activated HSCs. Furthermore, silencing of ZEB2 promoted senescence of activated HSCs. Moreover, we also demonstrated that miR-145 specifically targeted the 3'-untranslated regions of ZEB2. In vitro promoter regulation studies show that ZEB2 could bind to the E-box of the p53 promoter as well as inhibit its promoter activity and thus suppress the expression of p53, which in turn repressed activated HSCs senescence. Taken together, our results describe a novel miR-145-ZEB2-p53 regulatory line might participate in the senescence of activated HSCs and might carry potential therapeutic targets for restraining liver fibrosis.
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Affiliation(s)
- Junfa Yang
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Yuchen Lu
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Peipei Yang
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Qingfeng Chen
- Department of Clinical Medicine, Clinic Medical College of Anhui Medical University, Hefei, China
| | - Yang Wang
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Qi Ding
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Tao Xu
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Xiaofeng Li
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Changyao Li
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Cheng Huang
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Xiaoming Meng
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Jun Li
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Lei Zhang
- School of Pharmacy, Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, China
| | - Xiao Wang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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44
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Expressed repetitive elements are broadly applicable reference targets for normalization of reverse transcription-qPCR data in mice. Sci Rep 2018; 8:7642. [PMID: 29769563 PMCID: PMC5955877 DOI: 10.1038/s41598-018-25389-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 04/12/2018] [Indexed: 12/19/2022] Open
Abstract
Reverse transcription quantitative PCR (RT-qPCR) is the gold standard method for gene expression analysis on mRNA level. To remove experimental variation, expression levels of the gene of interest are typically normalized to the expression level of stably expressed endogenous reference genes. Identifying suitable reference genes and determining the optimal number of reference genes should precede each quantification study. Popular reference genes are not necessarily stably expressed in the examined conditions, possibly leading to inaccurate results. Stably and universally expressed repetitive elements (ERE) have previously been shown to be an excellent alternative for normalization using classic reference genes in human and zebrafish samples. Here, we confirm that in mouse tissues, EREs are broadly applicable reference targets for RT-qPCR normalization, provided that the RNA samples undergo a thorough DNase treatment. We identified Orr1a0, Rltr2aiap, and Rltr13a3 as the most stably expressed mouse EREs across six different experimental conditions. Therefore, we propose this set of ERE reference targets as good candidates for normalization of RT-qPCR data in a plethora of conditions. The identification of widely applicable stable mouse RT-qPCR reference targets for normalization has great potential to facilitate future murine gene expression studies and improve the validity of RT-qPCR data.
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45
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ZEB Proteins in Leukemia: Friends, Foes, or Friendly Foes? Hemasphere 2018; 2:e43. [PMID: 31723771 PMCID: PMC6745990 DOI: 10.1097/hs9.0000000000000043] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/09/2018] [Accepted: 04/11/2018] [Indexed: 01/06/2023] Open
Abstract
ZEB1 and ZEB2 play pivotal roles in solid cancer metastasis by allowing cancer cells to invade and disseminate through the transcriptional regulation of epithelial-to-mesenchymal transition. ZEB expression is also associated with the acquisition of cancer stem cell properties and therapy resistance. Consequently, expression levels of ZEB1/2 and of their direct target genes are widely seen as reliable prognostic markers for solid tumor aggressiveness and cancer patient outcome. Recent loss-of-function mouse models demonstrated that both ZEBs are also essential hematopoietic transcription factors governing blood lineage commitment and fidelity. Interestingly, both gain- and loss-of-function mutations have been reported in multiple hematological malignancies. Combined with emerging functional studies, these data suggest that ZEB1 and ZEB2 can act as tumor suppressors and/or oncogenes in blood borne malignancies, depending on the cellular context. Here, we review these novel insights and discuss how balanced expression of ZEB proteins may be essential to safeguard the functionality of the immune system and prevent leukemia.
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46
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Kim MJ, Choi SK, Hong SH, Eun JW, Nam SW, Han JW, You JS. Oncogenic IL7R is downregulated by histone deacetylase inhibitor in esophageal squamous cell carcinoma via modulation of acetylated FOXO1. Int J Oncol 2018; 53:395-403. [PMID: 29749437 DOI: 10.3892/ijo.2018.4392] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 04/18/2018] [Indexed: 11/05/2022] Open
Abstract
The interleukin-7 receptor (IL7R) is generally expressed in immune cells and is critical in survival, development and homeostasis in the immune system. Advanced genome-wide cancer studies have reported that IL7R is genetically amplified in human esophageal squamous cell carcinoma (ESCC), however, the exact role of IL7R in ESCC has not been investigated. In the present study, it was found that IL7R was overexpressed in ESCC cohorts and the loss of IL7R induced anti-oncogenic effects in ESCC cell lines. A small panel of epigenetic drugs were screened for their ability to downregulate the expression of IL7R. Unexpectedly, apicidin, a histone deacetylase (HDAC) inhibitor, effectively downregulated the expression of IL7R in a dose-dependent manner at an early time-point, as determined by quantitative polymerase chain reaction and IL7R immunostaining, and did not require de novo protein synthesis. Of note, apicidin induced the acetylation of Forkhead box-containing protein, O subfamily 1, which acts as a repressor at the IL7R promoter, accompanied with depleted active histone modifications based on chromatin immunoprecipitation assay. Taken together, these results demonstrated that targeting oncogenic IL7R in ESCC by HDAC inhibitors may be a valuable therapeutic approach.
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Affiliation(s)
- Myoung Jun Kim
- Department of Biochemistry, Research Institute of Medical Science, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Sung Kyung Choi
- Department of Biochemistry, Research Institute of Medical Science, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Seong Hwi Hong
- Department of Biochemistry, Research Institute of Medical Science, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung Woo Eun
- Functional RNomics Research Center, College of Medicine, The Catholic University, Seoul 06591, Republic of Korea
| | - Suk Woo Nam
- Functional RNomics Research Center, College of Medicine, The Catholic University, Seoul 06591, Republic of Korea
| | - Jeung-Whan Han
- Research Center for Epigenome Regulation, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jueng Soo You
- Department of Biochemistry, Research Institute of Medical Science, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
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47
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Montaño A, Forero-Castro M, Marchena-Mendoza D, Benito R, Hernández-Rivas JM. New Challenges in Targeting Signaling Pathways in Acute Lymphoblastic Leukemia by NGS Approaches: An Update. Cancers (Basel) 2018; 10:cancers10040110. [PMID: 29642462 PMCID: PMC5923365 DOI: 10.3390/cancers10040110] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 12/18/2022] Open
Abstract
The identification and study of genetic alterations involved in various signaling pathways associated with the pathogenesis of acute lymphoblastic leukemia (ALL) and the application of recent next-generation sequencing (NGS) in the identification of these lesions not only broaden our understanding of the involvement of various genetic alterations in the pathogenesis of the disease but also identify new therapeutic targets for future clinical trials. The present review describes the main deletions, amplifications, sequence mutations, epigenetic lesions, and new structural DNA rearrangements detected by NGS in B-ALL and T-ALL and their clinical importance for therapeutic procedures. We reviewed the molecular basis of pathways including transcriptional regulation, lymphoid differentiation and development, TP53 and the cell cycle, RAS signaling, JAK/STAT, NOTCH, PI3K/AKT/mTOR, Wnt/β-catenin signaling, chromatin structure modifiers, and epigenetic regulators. The implementation of NGS strategies has enabled important mutated genes in each pathway, their associations with the genetic subtypes of ALL, and their outcomes, which will be described further. We also discuss classic and new cryptic DNA rearrangements in ALL identified by mRNA-seq strategies. Novel cooperative abnormalities in ALL could be key prognostic and/or predictive biomarkers for selecting the best frontline treatment and for developing therapies after the first relapse or refractory disease.
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Affiliation(s)
- Adrián Montaño
- IBSAL, IBMCC, Universidad de Salamanca-CSIC, Cancer Research Center, 37007 Salamanca, Spain.
| | - Maribel Forero-Castro
- Escuela de Ciencias Biológicas, Grupo de investigación en Ciencias Biomédicas (GICBUPTC), Universidad Pedagógica y Tecnológica de Colombia, Tunja 150001, Colombia.
| | - Darnel Marchena-Mendoza
- IBSAL, IBMCC, Universidad de Salamanca-CSIC, Cancer Research Center, 37007 Salamanca, Spain.
- Escuela de Ciencias Biológicas, Grupo de investigación en Ciencias Biomédicas (GICBUPTC), Universidad Pedagógica y Tecnológica de Colombia, Tunja 150001, Colombia.
| | - Rocío Benito
- IBSAL, IBMCC, Universidad de Salamanca-CSIC, Cancer Research Center, 37007 Salamanca, Spain.
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48
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The role of zinc and its compounds in leukemia. J Biol Inorg Chem 2018; 23:347-362. [DOI: 10.1007/s00775-018-1545-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 02/09/2018] [Indexed: 12/23/2022]
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49
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Jiang Q, Zhou Y, Yang H, Li L, Deng X, Cheng C, Xie Y, Luo X, Fang W, Liu Z. A directly negative interaction of miR-203 and ZEB2 modulates tumor stemness and chemotherapy resistance in nasopharyngeal carcinoma. Oncotarget 2018; 7:67288-67301. [PMID: 27589832 PMCID: PMC5341875 DOI: 10.18632/oncotarget.11691] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 07/18/2016] [Indexed: 12/27/2022] Open
Abstract
miR-203 is a tumor suppressor that is disregulated in numerous malignancies including nasopharyngeal carcinoma (NPC). However, the role of miR-203 in suppressing tumor stemness, chemotherapy resistance as well as its molecular mechanisms are unclear. In this study, we observed that miR-203 suppressed cell migration, invasion, tumor stemness, and chemotherapy resistance to cisplatin (DDP) in vitro and in vivo. miR-203 exerted these effects by targeting ZEB2 and downstream epithelial-mesenchymal transition (EMT) and tumor stemness signals. Interestingly we observed that miR-203 expression was directly suppressed by ZEB2 via targeting its promoter, which significantly reduced cell migration, invasion, tumor stemness, and chemotherapy resistance in NPC cells. Finally, we found that miR-203 was negatively correlated with ZEB2 expression in NPC tissues and tumor spheres. Our data demonstrate a directly negative feedback loop between miR-203 and ZEB2 participating in tumor stemness and chemotherapy resistance, highlighting the therapeutic potential of targeting this signal for NPC chemotherapy.
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Affiliation(s)
- Qingping Jiang
- Department of Pathology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Ying Zhou
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Huiling Yang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Sino-American Cancer Research Institute, Guangdong Medical College, Dongguan 523808, China
| | - Libo Li
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Xiaojie Deng
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Chao Cheng
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yingying Xie
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Xiaojun Luo
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Weiyi Fang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Zhen Liu
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, Medical University of Guangzhou, Guangzhou 510182, China
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50
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Booth CAG, Barkas N, Neo WH, Boukarabila H, Soilleux EJ, Giotopoulos G, Farnoud N, Giustacchini A, Ashley N, Carrelha J, Jamieson L, Atkinson D, Bouriez-Jones T, Prinjha RK, Milne TA, Teachey DT, Papaemmanuil E, Huntly BJP, Jacobsen SEW, Mead AJ. Ezh2 and Runx1 Mutations Collaborate to Initiate Lympho-Myeloid Leukemia in Early Thymic Progenitors. Cancer Cell 2018; 33:274-291.e8. [PMID: 29438697 DOI: 10.1016/j.ccell.2018.01.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 11/13/2017] [Accepted: 01/08/2018] [Indexed: 02/08/2023]
Abstract
Lympho-myeloid restricted early thymic progenitors (ETPs) are postulated to be the cell of origin for ETP leukemias, a therapy-resistant leukemia associated with frequent co-occurrence of EZH2 and RUNX1 inactivating mutations, and constitutively activating signaling pathway mutations. In a mouse model, we demonstrate that Ezh2 and Runx1 inactivation targeted to early lymphoid progenitors causes a marked expansion of pre-leukemic ETPs, showing transcriptional signatures characteristic of ETP leukemia. Addition of a RAS-signaling pathway mutation (Flt3-ITD) results in an aggressive leukemia co-expressing myeloid and lymphoid genes, which can be established and propagated in vivo by the expanded ETPs. Both mouse and human ETP leukemias show sensitivity to BET inhibition in vitro and in vivo, which reverses aberrant gene expression induced by Ezh2 inactivation.
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Affiliation(s)
- Christopher A G Booth
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Nikolaos Barkas
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Wen Hao Neo
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Hanane Boukarabila
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Elizabeth J Soilleux
- Division of Cellular and Molecular Pathology, Department of Pathology, University of Cambridge, Cambridge, UK
| | - George Giotopoulos
- Wellcome Trust-MRC Cambridge Stem Cell Institute, Cambridge, UK; Department of Haematology, University of Cambridge, Cambridge, UK; Cambridge Institute for Medical Research, Cambridge Biomedical Campus, Hills Road, Cambridge CB2 0XY, UK
| | - Noushin Farnoud
- Center for Molecular Oncology, Center for Heme Malignancies and Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Alice Giustacchini
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; Department of Cell and Developmental Biology, University College London, London WC1E 6BT, UK
| | - Neil Ashley
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Joana Carrelha
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Lauren Jamieson
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Deborah Atkinson
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Tiphaine Bouriez-Jones
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Rab K Prinjha
- Epigenetics DPU, Oncology and Immuno-Inflammation Therapy Area Units, GlaxoSmithKline, Stevenage, UK
| | - Thomas A Milne
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - David T Teachey
- Division of Oncology, Children's Hospital of Philadelphia and Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Elli Papaemmanuil
- Center for Molecular Oncology, Center for Heme Malignancies and Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Brian J P Huntly
- Wellcome Trust-MRC Cambridge Stem Cell Institute, Cambridge, UK; Department of Haematology, University of Cambridge, Cambridge, UK; Cambridge Institute for Medical Research, Cambridge Biomedical Campus, Hills Road, Cambridge CB2 0XY, UK
| | - Sten Eirik W Jacobsen
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; Center for Hematology and Regenerative Medicine, Department of Medicine Huddinge, Karolinska Institutet, Karolinska University Hospital, SE-141 86 Stockholm, Sweden; Department of Cell and Molecular Biology, Karolinska Institutet, SE-171 77 Stockholm, Sweden.
| | - Adam J Mead
- Haematopoietic Stem Cell Biology Laboratory, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK; NIHR Biomedical Research Centre, Churchill Hospital, Oxford OX3 7LE, UK.
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