1
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Katerndahl CDS, Rogers ORS, Day RB, Xu Z, Helton NM, Ramakrishnan SM, Miller CA, Ley TJ. PML::RARA and GATA2 proteins interact via DNA templates to induce aberrant self-renewal in mouse and human hematopoietic cells. Proc Natl Acad Sci U S A 2024; 121:e2317690121. [PMID: 38648485 PMCID: PMC11067031 DOI: 10.1073/pnas.2317690121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/15/2024] [Indexed: 04/25/2024] Open
Abstract
The underlying mechanism(s) by which the PML::RARA fusion protein initiates acute promyelocytic leukemia is not yet clear. We defined the genomic binding sites of PML::RARA in primary mouse and human hematopoietic progenitor cells with V5-tagged PML::RARA, using anti-V5-PML::RARA chromatin immunoprecipitation sequencing and CUT&RUN approaches. Most genomic PML::RARA binding sites were found in regions that were already chromatin-accessible (defined by ATAC-seq) in unmanipulated, wild-type promyelocytes, suggesting that these regions are "open" prior to PML::RARA expression. We found that GATA binding motifs, and the direct binding of the chromatin "pioneering factor" GATA2, were significantly enriched near PML::RARA binding sites. Proximity labeling studies revealed that PML::RARA interacts with ~250 proteins in primary mouse hematopoietic cells; GATA2 and 33 others require PML::RARA binding to DNA for the interaction to occur, suggesting that binding to their cognate DNA target motifs may stabilize their interactions. In the absence of PML::RARA, Gata2 overexpression induces many of the same epigenetic and transcriptional changes as PML::RARA. These findings suggested that PML::RARA may indirectly initiate its transcriptional program by activating Gata2 expression: Indeed, we demonstrated that inactivation of Gata2 prior to PML::RARA expression prevented its ability to induce self-renewal. These data suggested that GATA2 binding creates accessible chromatin regions enriched for both GATA and Retinoic Acid Receptor Element motifs, where GATA2 and PML::RARA can potentially bind and interact with each other. In turn, PML::RARA binding to DNA promotes a feed-forward transcriptional program by positively regulating Gata2 expression. Gata2 may therefore be required for PML::RARA to establish its transcriptional program.
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Affiliation(s)
- Casey D. S. Katerndahl
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
| | - Olivia R. S. Rogers
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
| | - Ryan B. Day
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
| | - Ziheng Xu
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
| | - Nichole M. Helton
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
| | - Sai Mukund Ramakrishnan
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
| | - Christopher A. Miller
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
| | - Timothy J. Ley
- Division of Oncology, Department of Internal Medicine, Section of Stem Cell Biology, Washington University School of Medicine, St. Louis, MO63110
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2
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Rein A, Geron I, Kugler E, Fishman H, Gottlieb E, Abramovich I, Giladi A, Amit I, Mulet-Lazaro R, Delwel R, Gröschel S, Levin-Zaidman S, Dezorella N, Holdengreber V, Rao TN, Yacobovich J, Steinberg-Shemer O, Huang QH, Tan Y, Chen SJ, Izraeli S, Birger Y. Cellular and metabolic characteristics of pre-leukemic hematopoietic progenitors with GATA2 haploinsufficiency. Haematologica 2023; 108:2316-2330. [PMID: 36475518 PMCID: PMC10483369 DOI: 10.3324/haematol.2022.279437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 12/01/2022] [Indexed: 09/08/2023] Open
Abstract
Mono-allelic germline disruptions of the transcription factor GATA2 result in a propensity for developing myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML), affecting more than 85% of carriers. How a partial loss of GATA2 functionality enables leukemic transformation years later is unclear. This question has remained unsolved mainly due to the lack of informative models, as Gata2 heterozygote mice do not develop hematologic malignancies. Here we show that two different germline Gata2 mutations (TgErg/Gata2het and TgErg/Gata2L359V) accelerate AML in mice expressing the human hematopoietic stem cell regulator ERG. Analysis of Erg/Gata2het fetal liver and bone marrow-derived hematopoietic cells revealed a distinct pre-leukemic phenotype. This was characterized by enhanced transition from stem to progenitor state, increased proliferation, and a striking mitochondrial phenotype, consisting of highly expressed oxidative-phosphorylation-related gene sets, elevated oxygen consumption rates, and notably, markedly distorted mitochondrial morphology. Importantly, the same mitochondrial gene-expression signature was observed in human AML harboring GATA2 aberrations. Similar to the observations in mice, non-leukemic bone marrows from children with germline GATA2 mutation demonstrated marked mitochondrial abnormalities. Thus, we observed the tumor suppressive effects of GATA2 in two germline Gata2 genetic mouse models. As oncogenic mutations often accumulate with age, GATA2 deficiency-mediated priming of hematopoietic cells for oncogenic transformation may explain the earlier occurrence of MDS/AML in patients with GATA2 germline mutation. The mitochondrial phenotype is a potential therapeutic opportunity for the prevention of leukemic transformation in these patients.
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Affiliation(s)
- Avigail Rein
- Department of Human Molecular Genetics and Biochemistry, Sackler Medical School, Aviv University, Aviv 69978, Israel; The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva; Israel; Functional Genomics and Childhood Leukaemia Research, Sheba Medical Centre, Tel-Hashomer
| | - Ifat Geron
- Department of Human Molecular Genetics and Biochemistry, Sackler Medical School, Aviv University, Aviv 69978, Israel; The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva; Israel; Functional Genomics and Childhood Leukaemia Research, Sheba Medical Centre, Tel-Hashomer, Israel; Felsenstein Medical Research Center, Sackler School of Medicine Tel-Aviv University, Petah Tikva
| | - Eitan Kugler
- Department of Human Molecular Genetics and Biochemistry, Sackler Medical School, Aviv University, Aviv 69978, Israel; The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva; Israel; Functional Genomics and Childhood Leukaemia Research, Sheba Medical Centre, Tel-Hashomer
| | - Hila Fishman
- Department of Human Molecular Genetics and Biochemistry, Sackler Medical School, Aviv University, Aviv 69978, Israel; The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva; Israel; Functional Genomics and Childhood Leukaemia Research, Sheba Medical Centre, Tel-Hashomer
| | - Eyal Gottlieb
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Israel Institute of Technology, Haifa
| | - Ifat Abramovich
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Israel Institute of Technology, Haifa
| | - Amir Giladi
- Department of Immunology, Weizmann Institute of Science, Rehovot
| | - Ido Amit
- Department of Immunology, Weizmann Institute of Science, Rehovot
| | - Roger Mulet-Lazaro
- Department of Hematology, Erasmus University Medical Center, Rotterdam, 3015 GE
| | - Ruud Delwel
- Department of Hematology, Erasmus University Medical Center, Rotterdam, 3015 GE, the Netherlands; Oncode Institute, Erasmus University Medical Center, Rotterdam
| | - Stefan Gröschel
- Department of Hematology, Erasmus University Medical Center, Rotterdam, 3015 GE, the Netherlands; Molecular Leukemogenesis, Deutsches Krebsforschungszentrum, 69120 Heidelberg, Germany; Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg
| | | | - Nili Dezorella
- Electron Microscopy Unit, Weizmann Institute of Science, Rehovot
| | - Vered Holdengreber
- Electron Microscopy Unit, IDRFU, Faculty of Life Sciences, Aviv University
| | - Tata Nageswara Rao
- Stem Cells and Leukemia Laboratory, University Clinic of Hematology and Central Hematology, Department of Biomedical Research (DBMR), Inselspital Bern, University of Bern
| | - Joanne Yacobovich
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva
| | - Orna Steinberg-Shemer
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva; Israel; Felsenstein Medical Research Center, Sackler School of Medicine Tel-Aviv University, Petah Tikva
| | - Qiu-Hua Huang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital, Jiao Tong University School of Medicine, Shanghai 200025
| | - Yun Tan
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital, Jiao Tong University School of Medicine, Shanghai 200025
| | - Sai-Juan Chen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital, Jiao Tong University School of Medicine, Shanghai 200025
| | - Shai Izraeli
- Department of Human Molecular Genetics and Biochemistry, Sackler Medical School, Aviv University, Aviv 69978, Israel; The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva; Israel; Functional Genomics and Childhood Leukaemia Research, Sheba Medical Centre, Tel-Hashomer, Israel; Felsenstein Medical Research Center, Sackler School of Medicine Tel-Aviv University, Petah Tikva.
| | - Yehudit Birger
- Department of Human Molecular Genetics and Biochemistry, Sackler Medical School, Aviv University, Aviv 69978, Israel; The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petah Tikva; Israel; Functional Genomics and Childhood Leukaemia Research, Sheba Medical Centre, Tel-Hashomer, Israel; Felsenstein Medical Research Center, Sackler School of Medicine Tel-Aviv University, Petah Tikva.
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3
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Colom Díaz PA, Mistry JJ, Trowbridge JJ. Hematopoietic stem cell aging and leukemia transformation. Blood 2023; 142:533-542. [PMID: 36800569 PMCID: PMC10447482 DOI: 10.1182/blood.2022017933] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/23/2023] [Accepted: 02/08/2023] [Indexed: 02/19/2023] Open
Abstract
With aging, hematopoietic stem cells (HSCs) have an impaired ability to regenerate, differentiate, and produce an entire repertoire of mature blood and immune cells. Owing to dysfunctional hematopoiesis, the incidence of hematologic malignancies increases among elderly individuals. Here, we provide an update on HSC-intrinsic and -extrinsic factors and processes that were recently discovered to contribute to the functional decline of HSCs during aging. In addition, we discuss the targets and timing of intervention approaches to maintain HSC function during aging and the extent to which these same targets may prevent or delay transformation to hematologic malignancies.
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4
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Ventx Family and Its Functional Similarities with Nanog: Involvement in Embryonic Development and Cancer Progression. Int J Mol Sci 2022; 23:ijms23052741. [PMID: 35269883 PMCID: PMC8911082 DOI: 10.3390/ijms23052741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/21/2022] [Accepted: 02/27/2022] [Indexed: 12/27/2022] Open
Abstract
The Ventx family is one of the subfamilies of the ANTP (antennapedia) superfamily and belongs to the NK-like (NKL) subclass. Ventx is a homeobox transcription factor and has a DNA-interacting domain that is evolutionarily conserved throughout vertebrates. It has been extensively studied in Xenopus, zebrafish, and humans. The Ventx family contains transcriptional repressors widely involved in embryonic development and tumorigenesis in vertebrates. Several studies have documented that the Ventx family inhibited dorsal mesodermal formation, neural induction, and head formation in Xenopus and zebrafish. Moreover, Ventx2.2 showed functional similarities to Nanog and Barx1, leading to pluripotency and neural-crest migration in vertebrates. Among them, Ventx protein is an orthologue of the Ventx family in humans. Studies have demonstrated that human Ventx was strongly associated with myeloid-cell differentiation and acute myeloid leukemia. The therapeutic potential of Ventx family inhibition in combating cancer progression in humans is discussed. Additionally, we briefly discuss genome evolution, gene duplication, pseudo-allotetraploidy, and the homeobox family in Xenopus.
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5
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Bresciani E, Carrington B, Yu K, Kim EM, Zhen T, Guzman VS, Broadbridge E, Bishop K, Kirby M, Harper U, Wincovitch S, Dell’Orso S, Sartorelli V, Sood R, Liu P. Redundant mechanisms driven independently by RUNX1 and GATA2 for hematopoietic development. Blood Adv 2021; 5:4949-4962. [PMID: 34492681 PMCID: PMC9153008 DOI: 10.1182/bloodadvances.2020003969] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 06/02/2021] [Indexed: 11/20/2022] Open
Abstract
RUNX1 is essential for the generation of hematopoietic stem cells (HSCs). Runx1-null mouse embryos lack definitive hematopoiesis and die in mid-gestation. However, although zebrafish embryos with a runx1 W84X mutation have defects in early definitive hematopoiesis, some runx1W84X/W84X embryos can develop to fertile adults with blood cells of multilineages, raising the possibility that HSCs can emerge without RUNX1. Here, using 3 new zebrafish runx1-/- lines, we uncovered the compensatory mechanism for runx1-independent hematopoiesis. We show that, in the absence of a functional runx1, a cd41-green fluorescent protein (GFP)+ population of hematopoietic precursors still emerge from the hemogenic endothelium and can colonize the hematopoietic tissues of the mutant embryos. Single-cell RNA sequencing of the cd41-GFP+ cells identified a set of runx1-/--specific signature genes during hematopoiesis. Significantly, gata2b, which normally acts upstream of runx1 for the generation of HSCs, was increased in the cd41-GFP+ cells in runx1-/- embryos. Interestingly, genetic inactivation of both gata2b and its paralog gata2a did not affect hematopoiesis. However, knocking out runx1 and any 3 of the 4 alleles of gata2a and gata2b abolished definitive hematopoiesis. Gata2 expression was also upregulated in hematopoietic cells in Runx1-/- mice, suggesting the compensatory mechanism is conserved. Our findings indicate that RUNX1 and GATA2 serve redundant roles for HSC production, acting as each other's safeguard.
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Affiliation(s)
| | | | - Kai Yu
- Oncogenesis and Development Section
| | | | - Tao Zhen
- Oncogenesis and Development Section
| | | | | | | | | | | | - Stephen Wincovitch
- Cytogenetics and Microscopy Core, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD
| | | | - Vittorio Sartorelli
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Raman Sood
- Oncogenesis and Development Section
- Zebrafish Core
| | - Paul Liu
- Oncogenesis and Development Section
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6
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Zhang L, Nguyen LXT, Chen YC, Wu D, Cook GJ, Hoang DH, Brewer CJ, He X, Dong H, Li S, Li M, Zhao D, Qi J, Hua WK, Cai Q, Carnahan E, Chen W, Wu X, Swiderski P, Rockne RC, Kortylewski M, Li L, Zhang B, Marcucci G, Kuo YH. Targeting miR-126 in inv(16) acute myeloid leukemia inhibits leukemia development and leukemia stem cell maintenance. Nat Commun 2021; 12:6154. [PMID: 34686664 PMCID: PMC8536759 DOI: 10.1038/s41467-021-26420-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 10/05/2021] [Indexed: 12/21/2022] Open
Abstract
Acute myeloid leukemia (AML) harboring inv(16)(p13q22) expresses high levels of miR-126. Here we show that the CBFB-MYH11 (CM) fusion gene upregulates miR-126 expression through aberrant miR-126 transcription and perturbed miR-126 biogenesis via the HDAC8/RAN-XPO5-RCC1 axis. Aberrant miR-126 upregulation promotes survival of leukemia-initiating progenitors and is critical for initiating and maintaining CM-driven AML. We show that miR-126 enhances MYC activity through the SPRED1/PLK2-ERK-MYC axis. Notably, genetic deletion of miR-126 significantly reduces AML rate and extends survival in CM knock-in mice. Therapeutic depletion of miR-126 with an anti-miR-126 (miRisten) inhibits AML cell survival, reduces leukemia burden and leukemia stem cell (LSC) activity in inv(16) AML murine and xenograft models. The combination of miRisten with chemotherapy further enhances the anti-leukemia and anti-LSC activity. Overall, this study provides molecular insights for the mechanism and impact of miR-126 dysregulation in leukemogenesis and highlights the potential of miR-126 depletion as a therapeutic approach for inv(16) AML. miR-126 is highly expressed in inv(16) Acute myeloid leukemia (AML) but its role is unclear. Here, the authors show that the aberrant expression of miR-126 in inv(16) AML is directly due to the CBFB-MYH11 fusion gene and that it can promote AML development and leukemia stem cell maintenance, highlighting miR-126 as a therapeutic target for inv(16) AML patients
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Affiliation(s)
- Lianjun Zhang
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Le Xuan Truong Nguyen
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Ying-Chieh Chen
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Dijiong Wu
- Department of Hematology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310006, China
| | - Guerry J Cook
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Dinh Hoa Hoang
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Casey J Brewer
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Xin He
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Haojie Dong
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Shu Li
- Department of Hematology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Man Li
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Dandan Zhao
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Jing Qi
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Wei-Kai Hua
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Qi Cai
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Emily Carnahan
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Wei Chen
- Integrated Genomics Core, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Xiwei Wu
- Integrated Genomics Core, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Piotr Swiderski
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Russell C Rockne
- Department of Computational and Quantitative Medicine, Division of Mathematical Oncology, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Marcin Kortylewski
- Department of Immuno-oncology, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Ling Li
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Bin Zhang
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Guido Marcucci
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Ya-Huei Kuo
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA.
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7
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Wu LX, Jiang H, Chang YJ, Zhou YL, Wang J, Wang ZL, Cao LM, Li JL, Sun QY, Cao SB, Lou F, Zhou T, Liu LX, Wang CC, Wang Y, Jiang Q, Xu LP, Zhang XH, Liu KY, Huang XJ, Ruan GR. Risk Stratification of Cytogenetically Normal Acute Myeloid Leukemia With Biallelic CEBPA Mutations Based on a Multi-Gene Panel and Nomogram Model. Front Oncol 2021; 11:706935. [PMID: 34485141 PMCID: PMC8415912 DOI: 10.3389/fonc.2021.706935] [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: 05/08/2021] [Accepted: 07/14/2021] [Indexed: 11/13/2022] Open
Abstract
Background Approximately 30% of Chinese individuals with cytogenetically normal acute myeloid leukemia (CN-AML) have biallelic CEBPA (biCEBPA) mutations. The prognosis and optimal therapy for these patients are controversial in clinical practice. Methods In this study, we performed targeted region sequencing of 236 genes in 158 individuals with this genotype and constructed a nomogram model based on leukemia-free survival (LFS). Patients were randomly assigned to a training cohort (N =111) and a validation cohort (N =47) at a ratio of 7:3. Risk stratification was performed by the prognostic factors to investigate the risk-adapted post-remission therapy by Kaplan-Meier method. Results At least 1 mutated gene other than CEBPA was identified in patients and mutation number was associated with LFS (61.6% vs. 39.0%, P =0.033), survival (85.6% vs. 62.9%, P =0.030) and cumulative incidence of relapse (CIR) (38.4% vs. 59.5%, P =0.0496). White blood cell count, mutations in CFS3R, KMT2A and DNA methylation related genes were weighted to construct a nomogram model and differentiate two risk subgroups. Regarding LFS, low-risk patients were superior to the high-risk (89.3% vs. 33.8%, P <0.001 in training cohort; 87.5% vs. 18.2%, P =0.009 in validation cohort). Compared with chemotherapy, allogenic hematopoietic stem cell transplantation (allo-HSCT) improved 5-year LFS (89.6% vs. 32.6%, P <0.001), survival (96.9% vs. 63.6%, P =0.001) and CIR (7.2% vs. 65.8%, P <0.001) in high-risk patients but not low-risk patients (LFS, 77.4% vs. 88.9%, P =0.424; survival, 83.9% vs. 95.5%, P =0.173; CIR, 11.7% vs. 11.1%, P =0.901). Conclusions Our study indicated that biCEBPA mutant-positive CN-AML patients could be further classified into two risk subgroups by four factors and allo-HSCT should be recommended for high-risk patients as post-remission therapy. These data will help physicians refine treatment decision-making in biCEBPA mutant-positive CN-AML patients.
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Affiliation(s)
- Li-Xin Wu
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Hao Jiang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Ying-Jun Chang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Ya-Lan Zhou
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Jing Wang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Zi-Long Wang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Lei-Ming Cao
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Jin-Lan Li
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Qiu-Yu Sun
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Shan-Bo Cao
- Department of Bioinformatics, AcornMed Biotechnology Co., Ltd., Beijing, China
| | - Feng Lou
- Department of Bioinformatics, AcornMed Biotechnology Co., Ltd., Beijing, China
| | - Tao Zhou
- Department of Bioinformatics, AcornMed Biotechnology Co., Ltd., Beijing, China
| | - Li-Xia Liu
- Department of Bioinformatics, AcornMed Biotechnology Co., Ltd., Beijing, China
| | - Cheng-Cheng Wang
- Department of Bioinformatics, AcornMed Biotechnology Co., Ltd., Beijing, China
| | - Yu Wang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Qian Jiang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Lan-Ping Xu
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Xiao-Hui Zhang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Kai-Yan Liu
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Xiao-Jun Huang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.,Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies, Chinese Academy of Medical Sciences, Beijing, China
| | - Guo-Rui Ruan
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
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Xie J, Zhao C, Sun J, Li J, Yang F, Wang J, Nie Q. Prediction of Essential Genes in Comparison States Using Machine Learning. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2021; 18:1784-1792. [PMID: 32991286 DOI: 10.1109/tcbb.2020.3027392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Identifying essential genes in comparison states (EGS) is vital to understanding cell differentiation, performing drug discovery, and identifying disease causes. Here, we present a machine learning method termed Prediction of Essential Genes in Comparison States (PreEGS). To capture the alteration of the network in comparison states, PreEGS extracts topological and gene expression features of each gene in a five-dimensional vector. PreEGS also recruits a positive sample expansion method to address the problem of unbalanced positive and negative samples, which is often encountered in practical applications. Different classifiers are applied to the simulated datasets, and the PreEGS based on the random forests model (PreEGSRF) was chosen for optimal performance. PreEGSRF was then compared with six other methods, including three machine learning methods, to predict EGS in a specific state. On real datasets with four gene regulatory networks, PreEGSRF predicted five essential genes related to leukemia and five enriched KEGG pathways. Four of the predicted essential genes and all predicted pathways were consistent with previous studies and highly correlated with leukemia. With high prediction accuracy and generalization ability, PreEGSRF is broadly applicable for the discovery of disease-causing genes, driver genes for cell fate decisions, and complex biomarkers of biological systems.
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Allele-specific expression of GATA2 due to epigenetic dysregulation in CEBPA double-mutant AML. Blood 2021; 138:160-177. [PMID: 33831168 DOI: 10.1182/blood.2020009244] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 03/24/2021] [Indexed: 12/11/2022] Open
Abstract
Transcriptional deregulation is a central event in the development of acute myeloid leukemia (AML). To identify potential disturbances in gene regulation, we conducted an unbiased screen of allele-specific expression (ASE) in 209 AML cases. The gene encoding GATA binding protein 2 (GATA2) displayed ASE more often than any other myeloid- or cancer-related gene. GATA2 ASE was strongly associated with CEBPA double mutations (DMs), with 95% of cases presenting GATA2 ASE. In CEBPA DM AML with GATA2 mutations, the mutated allele was preferentially expressed. We found that GATA2 ASE was a somatic event lost in complete remission, supporting the notion that it plays a role in CEBPA DM AML. Acquisition of GATA2 ASE involved silencing of 1 allele via promoter methylation and concurrent overactivation of the other allele, thereby preserving expression levels. Notably, promoter methylation was also lost in remission along with GATA2 ASE. In summary, we propose that GATA2 ASE is acquired by epigenetic mechanisms and is a prerequisite for the development of AML with CEBPA DMs. This finding constitutes a novel example of an epigenetic hit cooperating with a genetic hit in the pathogenesis of AML.
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Tumor suppressor function of Gata2 in Acute Promyelocytic Leukemia. Blood 2021; 138:1148-1161. [PMID: 34125173 DOI: 10.1182/blood.2021011758] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/06/2021] [Indexed: 11/20/2022] Open
Abstract
Most patients with acute promyelocytic leukemia (APL) can be cured with combined All Trans Retinoic Acid (ATRA) and Arsenic Trioxide therapy, which induce the destruction of PML-RARA, the initiating fusion protein for this disease1. However, the underlying mechanisms by which PML-RARA initiates and maintains APL cells are still not clear. We therefore identified genes that are dysregulated by PML-RARA in mouse and human APL cells, and prioritized GATA2 for functional studies because 1) it is highly expressed in pre-leukemic cells expressing PML-RARA, 2) its high expression persists in transformed APL cells, and 3) spontaneous somatic mutations of GATA2 occur during APL progression in both mice and humans. These and other findings suggested that GATA2 may be upregulated to thwart the proliferative signal generated by PML-RARA, and that its inactivation by mutation (and/or epigenetic silencing) may accelerate disease progression in APL and other forms of AML. Indeed, biallelic knockout of Gata2 with CRISPR/Cas9-mediated gene editing increased the serial replating efficiency of PML-RARA-expressing myeloid progenitors (and also progenitors expressing RUNX1-RUNX1T1, or deficient for Cebpa), increased mouse APL penetrance, and decreased latency. Restoration of Gata2 expression suppressed PML-RARA-driven aberrant self-renewal and leukemogenesis. Conversely, addback of a mutant GATA2R362G protein associated with APL and AML minimally suppressed PML-RARA-induced aberrant self-renewal, suggesting that it is a loss-of-function mutation. These studies reveal a potential role for Gata2 as a tumor suppressor in AML, and suggest that restoration of its function (when inactivated) may provide benefit for AML patients.
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RUNX1 and CBFβ-SMMHC transactivate target genes together in abnormal myeloid progenitors for leukemia development. Blood 2021; 136:2373-2385. [PMID: 32929473 DOI: 10.1182/blood.2020007747] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/18/2020] [Indexed: 11/20/2022] Open
Abstract
Inversion of chromosome 16 is a consistent finding in patients with acute myeloid leukemia subtype M4 with eosinophilia, which generates a CBFB-MYH11 fusion gene. It is generally considered that CBFβ-SMMHC, the fusion protein encoded by CBFB-MYH11, is a dominant negative repressor of RUNX1. However, recent findings challenge the RUNX1-repression model for CBFβ-SMMHC-mediated leukemogenesis. To definitively address the role of Runx1 in CBFB-MYH11-induced leukemia, we crossed conditional Runx1 knockout mice (Runx1f/f) with conditional Cbfb-MYH11 knockin mice (Cbfb+/56M). On Mx1-Cre activation in hematopoietic cells induced by poly (I:C) injection, all Mx1-CreCbfb+/56M mice developed leukemia in 5 months, whereas no leukemia developed in Runx1f/fMx1-CreCbfb+/56M mice, and this effect was cell autonomous. Importantly, the abnormal myeloid progenitors (AMPs), a leukemia-initiating cell population induced by Cbfb-MYH11 in the bone marrow, decreased and disappeared in Runx1f/fMx1-CreCbfb+/56M mice. RNA-seq analysis of AMP cells showed that genes associated with proliferation, differentiation blockage, and leukemia initiation were differentially expressed between Mx1-CreCbfb+/56M and Runx1f/fMx1-CreCbfb+/56M mice. In addition, with the chromatin immunocleavage sequencing assay, we observed a significant enrichment of RUNX1/CBFβ-SMMHC target genes in Runx1f/fMx1-CreCbfb+/56M cells, especially among downregulated genes, suggesting that RUNX1 and CBFβ-SMMHC mainly function together as activators of gene expression through direct target gene binding. These data indicate that Runx1 is indispensable for Cbfb-MYH11-induced leukemogenesis by working together with CBFβ-SMMHC to regulate critical genes associated with the generation of a functional AMP population.
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Yang C, Huang X, Li Y, Chen J, Lv Y, Dai S. Prognosis and personalized treatment prediction in TP53-mutant hepatocellular carcinoma: an in silico strategy towards precision oncology. Brief Bioinform 2020; 22:5891146. [PMID: 32789496 DOI: 10.1093/bib/bbaa164] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 01/03/2023] Open
Abstract
TP53 mutation is one of the most common genetic changes in hepatocellular carcinoma (HCC). It is of great clinical significance to tailor specialized prognostication approach and to explore more therapeutic options for TP53-mutant HCCs. In this study, a total of 1135 HCC patients were retrospectively analyzed. We developed a random forest-based prediction model to estimate TP53 mutational status, tackling the problem of limited sample size in TP53-mutant HCCs. A multi-step process was performed to develop robust poor prognosis-associated signature (PPS). Compared with previous established population-based signatures, PPS manifested superior ability to predict survival in TP53-mutant patients. After in silico screening of 2249 drug targets and 1770 compounds, we found that three targets (CANT1, CBFB and PKM) and two agents (irinotecan and YM-155) might have potential therapeutic implications in high-PPS patients. The results of drug targets prediction and compounds prediction complemented each other, presenting a comprehensive view of potential treatment strategy. Overall, our study has not only provided new insights into personalized prognostication approaches, but also thrown light on integrating tailored risk stratification with precision therapy.
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Affiliation(s)
- Chen Yang
- Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Xiaowen Huang
- Ministry of Health, Division of Gastroenterology and Hepatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Yan Li
- Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, China
| | - Junfei Chen
- Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Yuanyuan Lv
- Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Shixue Dai
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, South China University of Technology, China
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Beghini A. Core Binding Factor Leukemia: Chromatin Remodeling Moves Towards Oncogenic Transcription. Cancers (Basel) 2019; 11:E1973. [PMID: 31817911 PMCID: PMC6966602 DOI: 10.3390/cancers11121973] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/02/2019] [Accepted: 12/05/2019] [Indexed: 11/25/2022] Open
Abstract
Acute myeloid leukemia (AML), the most common acute leukemia in adults, is a heterogeneous malignant clonal disorder arising from multipotent hematopoietic progenitor cells characterized by genetic and concerted epigenetic aberrations. Core binding factor-Leukemia (CBFL) is characterized by the recurrent reciprocal translocations t(8;21)(q22;q22) or inv(16)(p13;q22) that, expressing the distinctive RUNX1-RUNX1T1 (also known as Acute myeloid leukemia1-eight twenty-one, AML1-ETO or RUNX1/ETO) or CBFB-MYH11 (also known as CBFβ-ΣMMHX) translocation product respectively, disrupt the essential hematopoietic function of the CBF. In the past decade, remarkable progress has been achieved in understanding the structure, three-dimensional (3D) chromosomal topology, and disease-inducing genetic and epigenetic abnormalities of the fusion proteins that arise from disruption of the CBF subunit alpha and beta genes. Although CBFLs have a relatively good prognosis compared to other leukemia subtypes, 40-50% of patients still relapse, requiring intensive chemotherapy and allogenic hematopoietic cell transplantation (alloHCT). To provide a rationale for the CBFL-associated altered hematopoietic development, in this review, we summarize the current understanding on the various molecular mechanisms, including dysregulation of Wnt/β-catenin signaling as an early event that triggers the translocations, playing a pivotal role in the pathophysiology of CBFL. Translation of these findings into the clinical setting is just beginning by improvement in risk stratification, MRD assessment, and development of targeted therapies.
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