1
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Kubota S, Sun Y, Morii M, Bai J, Ideue T, Hirayama M, Sorin S, Eerdunduleng, Yokomizo-Nakano T, Osato M, Hamashima A, Iimori M, Araki K, Umemoto T, Sashida G. Chromatin modifier Hmga2 promotes adult hematopoietic stem cell function and blood regeneration in stress conditions. EMBO J 2024; 43:2661-2684. [PMID: 38811851 PMCID: PMC11217491 DOI: 10.1038/s44318-024-00122-4] [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: 07/14/2023] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/31/2024] Open
Abstract
The molecular mechanisms governing the response of hematopoietic stem cells (HSCs) to stress insults remain poorly defined. Here, we investigated effects of conditional knock-out or overexpression of Hmga2 (High mobility group AT-hook 2), a transcriptional activator of stem cell genes in fetal HSCs. While Hmga2 overexpression did not affect adult hematopoiesis under homeostasis, it accelerated HSC expansion in response to injection with 5-fluorouracil (5-FU) or in vitro treatment with TNF-α. In contrast, HSC and megakaryocyte progenitor cell numbers were decreased in Hmga2 KO animals. Transcription of inflammatory genes was repressed in Hmga2-overexpressing mice injected with 5-FU, and Hmga2 bound to distinct regions and chromatin accessibility was decreased in HSCs upon stress. Mechanistically, we found that casein kinase 2 (CK2) phosphorylates the Hmga2 acidic domain, promoting its access and binding to chromatin, transcription of anti-inflammatory target genes, and the expansion of HSCs under stress conditions. Notably, the identified stress-regulated Hmga2 gene signature is activated in hematopoietic stem progenitor cells of human myelodysplastic syndrome patients. In sum, these results reveal a TNF-α/CK2/phospho-Hmga2 axis controlling adult stress hematopoiesis.
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Affiliation(s)
- Sho Kubota
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
- Department of Medicinal Pharmacology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yuqi Sun
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
- Department of Hematology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Mariko Morii
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Jie Bai
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takako Ideue
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Mayumi Hirayama
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Supannika Sorin
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Eerdunduleng
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takako Yokomizo-Nakano
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Motomi Osato
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
- Department of General Internal Medicine, Kumamoto Kenhoku Hospital, Kumamoto, Japan
| | - Ai Hamashima
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Mihoko Iimori
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kimi Araki
- Institute of Resource Development and Analysis, Kumamoto University, Kumamoto, Japan
- Center for Metabolic Regulation of Healthy Aging, Kumamoto University, Kumamoto, Japan
| | - Terumasa Umemoto
- Laboratory of Hematopoietic Stem Cell Engineering, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Goro Sashida
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan.
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2
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Bordeleau ME, Audemard É, Métois A, Theret L, Lisi V, Farah A, Spinella JF, Chagraoui J, Moujaber O, Aubert L, Khakipoor B, Mallinger L, Boivin I, Mayotte N, Hajmirza A, Bonneil É, Béliveau F, Pfammatter S, Feghaly A, Boucher G, Gendron P, Thibault P, Barabé F, Lemieux S, Richard-Carpentier G, Hébert J, Lavallée VP, Roux PP, Sauvageau G. Immunotherapeutic targeting of surfaceome heterogeneity in AML. Cell Rep 2024; 43:114260. [PMID: 38838225 DOI: 10.1016/j.celrep.2024.114260] [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: 10/05/2023] [Revised: 01/29/2024] [Accepted: 05/07/2024] [Indexed: 06/07/2024] Open
Abstract
Immunotherapy remains underexploited in acute myeloid leukemia (AML) compared to other hematological malignancies. Currently, gemtuzumab ozogamicin is the only therapeutic antibody approved for this disease. Here, to identify potential targets for immunotherapeutic intervention, we analyze the surface proteome of 100 genetically diverse primary human AML specimens for the identification of cell surface proteins and conduct single-cell transcriptome analyses on a subset of these specimens to assess antigen expression at the sub-population level. Through this comprehensive effort, we successfully identify numerous antigens and markers preferentially expressed by primitive AML cells. Many identified antigens are targeted by therapeutic antibodies currently under clinical evaluation for various cancer types, highlighting the potential therapeutic value of the approach. Importantly, this initiative uncovers AML heterogeneity at the surfaceome level, identifies several antigens and potential primitive cell markers characterizing AML subgroups, and positions immunotherapy as a promising approach to target AML subgroup specificities.
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Affiliation(s)
- Marie-Eve Bordeleau
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada.
| | - Éric Audemard
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Arnaud Métois
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Louis Theret
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Véronique Lisi
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H3T 1C5, Canada
| | - Azer Farah
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H3T 1C5, Canada
| | - Jean-François Spinella
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Jalila Chagraoui
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Ossama Moujaber
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Léo Aubert
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Banafsheh Khakipoor
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H3T 1C5, Canada
| | - Laure Mallinger
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Isabel Boivin
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Nadine Mayotte
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Azadeh Hajmirza
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Éric Bonneil
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - François Béliveau
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Quebec Leukemia Cell Bank, Maisonneuve-Rosemont Hospital, Montréal, QC H1T 2M4, Canada
| | - Sybille Pfammatter
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Albert Feghaly
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Geneviève Boucher
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Patrick Gendron
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Pierre Thibault
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Department of Chemistry, Faculty of Arts and Science, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Frédéric Barabé
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Centre de Recherche du Centre Hospitalier Universitaire de Québec, Université Laval, Québec, QC G1V 4G2, Canada
| | - Sébastien Lemieux
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada.
| | - Guillaume Richard-Carpentier
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada; Department of Medicine, Division of Medical Oncology and Hematology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Josée Hébert
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Quebec Leukemia Cell Bank, Maisonneuve-Rosemont Hospital, Montréal, QC H1T 2M4, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada; Division of Hematology-Oncology, Maisonneuve-Rosemont Hospital, Montréal, QC H1T 2M4, Canada.
| | - Vincent-Philippe Lavallée
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H3T 1C5, Canada; Department of Pediatrics, Faculty of Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada; Hematology and Oncology Division, Centre Hospitalier Universitaire Sainte-Justine, Montréal, QC H3T 1C5, Canada.
| | - Philippe P Roux
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Department of Pathology and Cell Biology, Faculty of Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada.
| | - Guy Sauvageau
- The Leucegene project at Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3T 1J4, Canada; Quebec Leukemia Cell Bank, Maisonneuve-Rosemont Hospital, Montréal, QC H1T 2M4, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada; Division of Hematology-Oncology, Maisonneuve-Rosemont Hospital, Montréal, QC H1T 2M4, Canada.
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3
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Ling RE, Cross JW, Roy A. Aberrant stem cell and developmental programs in pediatric leukemia. Front Cell Dev Biol 2024; 12:1372899. [PMID: 38601080 PMCID: PMC11004259 DOI: 10.3389/fcell.2024.1372899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/11/2024] [Indexed: 04/12/2024] Open
Abstract
Hematopoiesis is a finely orchestrated process, whereby hematopoietic stem cells give rise to all mature blood cells. Crucially, they maintain the ability to self-renew and/or differentiate to replenish downstream progeny. This process starts at an embryonic stage and continues throughout the human lifespan. Blood cancers such as leukemia occur when normal hematopoiesis is disrupted, leading to uncontrolled proliferation and a block in differentiation of progenitors of a particular lineage (myeloid or lymphoid). Although normal stem cell programs are crucial for tissue homeostasis, these can be co-opted in many cancers, including leukemia. Myeloid or lymphoid leukemias often display stem cell-like properties that not only allow proliferation and survival of leukemic blasts but also enable them to escape treatments currently employed to treat patients. In addition, some leukemias, especially in children, have a fetal stem cell profile, which may reflect the developmental origins of the disease. Aberrant fetal stem cell programs necessary for leukemia maintenance are particularly attractive therapeutic targets. Understanding how hijacked stem cell programs lead to aberrant gene expression in place and time, and drive the biology of leukemia, will help us develop the best treatment strategies for patients.
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Affiliation(s)
- Rebecca E. Ling
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Joe W. Cross
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Anindita Roy
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Haematology, Great Ormond Street Hospital for Children, London, United Kingdom
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4
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Moison C, Gracias D, Schmitt J, Girard S, Spinella JF, Fortier S, Boivin I, Mendoza-Sanchez R, Thavonekham B, MacRae T, Mayotte N, Bonneil E, Wittman M, Carmichael J, Ruel R, Thibault P, Hébert J, Marinier A, Sauvageau G. SF3B1 mutations provide genetic vulnerability to copper ionophores in human acute myeloid leukemia. SCIENCE ADVANCES 2024; 10:eadl4018. [PMID: 38517966 PMCID: PMC10959413 DOI: 10.1126/sciadv.adl4018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/20/2024] [Indexed: 03/24/2024]
Abstract
In a phenotypical screen of 56 acute myeloid leukemia (AML) patient samples and using a library of 10,000 compounds, we identified a hit with increased sensitivity toward SF3B1-mutated and adverse risk AMLs. Through structure-activity relationship studies, this hit was optimized into a potent, specific, and nongenotoxic molecule called UM4118. We demonstrated that UM4118 acts as a copper ionophore that initiates a mitochondrial-based noncanonical form of cell death known as cuproptosis. CRISPR-Cas9 loss-of-function screen further revealed that iron-sulfur cluster (ISC) deficiency enhances copper-mediated cell death. Specifically, we found that loss of the mitochondrial ISC transporter ABCB7 is synthetic lethal to UM4118. ABCB7 is misspliced and down-regulated in SF3B1-mutated leukemia, creating a vulnerability to copper ionophores. Accordingly, ABCB7 overexpression partially rescued SF3B1-mutated cells to copper overload. Together, our work provides mechanistic insights that link ISC deficiency to cuproptosis, as exemplified by the high sensitivity of SF3B1-mutated AMLs. We thus propose SF3B1 mutations as a biomarker for future copper ionophore-based therapies.
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Affiliation(s)
- Céline Moison
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Deanne Gracias
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Julie Schmitt
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Simon Girard
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Jean-François Spinella
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Simon Fortier
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Isabel Boivin
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | | | - Bounkham Thavonekham
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Tara MacRae
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Nadine Mayotte
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Eric Bonneil
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Mark Wittman
- Research and Development, Bristol Myers Squibb Company, Cambridge, MA, USA
| | - James Carmichael
- Research and Development, Bristol Myers Squibb Company, Cambridge, MA, USA
| | - Réjean Ruel
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Pierre Thibault
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
- Department of Chemistry, Université de Montréal, Montréal, Canada
| | - Josée Hébert
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
- Division of Hematology-Oncology and Quebec Leukemia Cell Bank, Maisonneuve-Rosemont Hospital, Montréal, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Canada
| | - Anne Marinier
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
- Department of Chemistry, Université de Montréal, Montréal, Canada
| | - Guy Sauvageau
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
- Division of Hematology-Oncology and Quebec Leukemia Cell Bank, Maisonneuve-Rosemont Hospital, Montréal, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Canada
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5
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Ueda K, Ikeda K. Cellular carcinogenesis in preleukemic conditions:drivers and defenses. Fukushima J Med Sci 2024; 70:11-24. [PMID: 37952978 PMCID: PMC10867434 DOI: 10.5387/fms.2023-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 09/26/2023] [Indexed: 11/14/2023] Open
Abstract
Acute myeloid leukemia (AML) arises from preleukemic conditions. We have investigated the pathogenesis of typical preleukemia, myeloproliferative neoplasms, and clonal hematopoiesis. Hematopoietic stem cells in both preleukemic conditions harbor recurrent driver mutations; additional mutation provokes further malignant transformation, leading to AML onset. Although genetic alterations are defined as the main cause of malignant transformation, non-genetic factors are also involved in disease progression. In this review, we focus on a non-histone chromatin protein, high mobility group AT-hook2 (HMGA2), and a physiological p53 inhibitor, murine double minute X (MDMX). HMGA2 is mainly overexpressed by dysregulation of microRNAs or mutations in polycomb components, and provokes expansion of preleukemic clones through stem cell signature disruption. MDMX is overexpressed by altered splicing balance in myeloid malignancies. MDMX induces leukemic transformation from preleukemia via suppression of p53 and p53-independent activation of WNT/β-catenin signaling. We also discuss how these non-genetic factors can be targeted for leukemia prevention therapy.
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Affiliation(s)
- Koki Ueda
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University
| | - Kazuhiko Ikeda
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University
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6
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Inoue O, Goten C, Hashimuko D, Yamaguchi K, Takeda Y, Nomura A, Ootsuji H, Takashima S, Iino K, Takemura H, Halurkar M, Lim HW, Hwa V, Sanchez-Gurmaches J, Usui S, Takamura M. Single-cell transcriptomics identifies adipose tissue CD271 + progenitors for enhanced angiogenesis in limb ischemia. Cell Rep Med 2023; 4:101337. [PMID: 38118404 PMCID: PMC10772587 DOI: 10.1016/j.xcrm.2023.101337] [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: 02/13/2023] [Revised: 07/10/2023] [Accepted: 11/21/2023] [Indexed: 12/22/2023]
Abstract
Therapeutic angiogenesis using mesenchymal stem/stromal cell grafts have shown modest and controversial effects in preventing amputation for patients with critical limb ischemia. Through single-cell transcriptomic analysis of human tissues, we identify CD271+ progenitors specifically from subcutaneous adipose tissue (AT) as having the most prominent pro-angiogenic gene profile distinct from other stem cell populations. AT-CD271+ progenitors demonstrate robust in vivo angiogenic capacity over conventional adipose stromal cell grafts, characterized by long-term engraftment, augmented tissue regeneration, and significant recovery of blood flow in a xenograft model of limb ischemia. Mechanistically, the angiogenic capacity of CD271+ progenitors is dependent on functional CD271 and mTOR signaling. Notably, the number and angiogenic capacity of CD271+ progenitors are strikingly reduced in insulin-resistant donors. Our study highlights the identification of AT-CD271+ progenitors with in vivo superior efficacy for limb ischemia. Furthermore, we showcase comprehensive single-cell transcriptomics strategies for identification of suitable grafts for cell therapy.
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Affiliation(s)
- Oto Inoue
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan; Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Chiaki Goten
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Daiki Hashimuko
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Kosei Yamaguchi
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Yusuke Takeda
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Ayano Nomura
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Hiroshi Ootsuji
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Shinichiro Takashima
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Kenji Iino
- Department of Thoracic, Cardiovascular and General Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Hirofumi Takemura
- Department of Thoracic, Cardiovascular and General Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Manasi Halurkar
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Hee-Woong Lim
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Vivian Hwa
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA; Premium Research Institute for Human Medicine (WPI-PRIMe), Osaka University, Osaka, Japan; Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Joan Sanchez-Gurmaches
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA; Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
| | - Soichiro Usui
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan.
| | - Masayuki Takamura
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan.
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7
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Ahmed SM, Ragunathan P, Shin J, Peter S, Kleissle S, Neuenschwander M, Schäfer R, Kries JPV, Grüber G, Dröge P. The FGFR inhibitor PD173074 binds to the C-terminus of oncofetal HMGA2 and modulates its DNA-binding and transcriptional activation functions. FEBS Lett 2023; 597:1977-1988. [PMID: 37259564 DOI: 10.1002/1873-3468.14675] [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: 03/06/2023] [Revised: 04/20/2023] [Accepted: 05/23/2023] [Indexed: 06/02/2023]
Abstract
The architectural chromatin factor high-mobility group AT-hook 2 (HMGA2) is causally involved in several human malignancies and pathologies. HMGA2 is not expressed in most normal adult somatic cells, which renders the protein an attractive drug target. An established cell-based compound library screen identified the fibroblast growth factor receptor (FGFR) inhibitor PD173074 as an antagonist of HMGA2-mediated transcriptional reporter gene activation. We determined that PD173074 binds the C-terminus of HMGA2 and interferes with functional coordination of the three AT-hook DNA-binding domains mediated by the C-terminus. The HMGA2-antagonistic effect of PD173074 on transcriptional activation may therefore result from an induced altered DNA-binding mode of HMGA2. PD173074 as a novel HMGA2-specific antagonist could trigger the development of derivates with enhanced attributes and clinical potential.
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Affiliation(s)
- Syed Moiz Ahmed
- School of Biological Sciences, Nanyang Technological University, Singapore City, Singapore
| | - Priya Ragunathan
- School of Biological Sciences, Nanyang Technological University, Singapore City, Singapore
| | - Joon Shin
- School of Biological Sciences, Nanyang Technological University, Singapore City, Singapore
| | - Sabrina Peter
- School of Biological Sciences, Nanyang Technological University, Singapore City, Singapore
| | - Sabrina Kleissle
- Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtz-Gemeinschaft, Berlin, Germany
| | | | - Reinhold Schäfer
- Comprehensive Cancer Center, Charité Universitätsmedizin Berlin, Germany
- German Cancer Consortium, German Cancer Research Center, Heidelberg, Germany
| | - Jens Peter V Kries
- Leibniz-Forschungsinstitut fűr Molekulare Pharmakologie, Berlin, Germany
| | - Gerhard Grüber
- School of Biological Sciences, Nanyang Technological University, Singapore City, Singapore
| | - Peter Dröge
- School of Biological Sciences, Nanyang Technological University, Singapore City, Singapore
- LambdaGen Pte Ltd, Singapore City, Singapore
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8
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Inoue O, Goten C, Hashimuko D, Yamaguchi K, Takeda Y, Nomura A, Ootsuji H, Takashima S, Iino K, Takemura H, Halurkar M, Lim HW, Hwa V, Sanchez-Gurmaches J, Usui S, Takamura M. Single cell transcriptomics identifies adipose tissue CD271+ progenitors for enhanced angiogenesis in limb ischemia. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.09.527726. [PMID: 36865239 PMCID: PMC9980009 DOI: 10.1101/2023.02.09.527726] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Therapeutic angiogenesis using mesenchymal stem/stromal cell grafts have shown modest and controversial effects in preventing amputation for patients with critical limb ischemia. Through single-cell transcriptomic analysis of human tissues, we identified CD271 + progenitors specifically from subcutaneous adipose tissue (AT) as having the most prominent pro-angiogenic gene profile distinct from other stem cell populations. AT-CD271 + progenitors demonstrated robust in vivo angiogenic capacity, over conventional adipose stromal cell grafts, characterized by long-term engraftment, augmented tissue regeneration, and significant recovery of blood flow in a xenograft model of limb ischemia. Mechanistically, the angiogenic capacity of CD271 + progenitors is dependent on functional CD271 and mTOR signaling. Notably, the number and angiogenic capacity of CD271 + progenitors was strikingly reduced in insulin resistant donors. Our study highlights the identification of AT-CD271 + progenitors with in vivo superior efficacy for limb ischemia. Furthermore, we showcase comprehensive single-cell transcriptomics strategies for identification of suitable grafts for cell therapy. HIGHLIGHTS Adipose tissue stromal cells have a distinct angiogenic gene profile among human cell sources. CD271 + progenitors in adipose tissue have a prominent angiogenic gene profile. CD271 + progenitors show superior therapeutic capacities for limb ischemia. CD271 + progenitors are reduced and functionally impaired in insulin resistant donors. GRAPHICAL ABSTRACT
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