1
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Liu W, Ding Y, Shen Z, Xu C, Yi W, Wang D, Zhou Y, Zon LI, Liu JX. BF170 hydrochloride enhances the emergence of hematopoietic stem and progenitor cells. Development 2024; 151:dev202476. [PMID: 38940293 DOI: 10.1242/dev.202476] [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: 10/24/2023] [Accepted: 05/14/2024] [Indexed: 06/29/2024]
Abstract
Generation of hematopoietic stem and progenitor cells (HSPCs) ex vivo and in vivo, especially the generation of safe therapeutic HSPCs, still remains inefficient. In this study, we have identified compound BF170 hydrochloride as a previously unreported pro-hematopoiesis molecule, using the differentiation assays of primary zebrafish blastomere cell culture and mouse embryoid bodies (EBs), and we demonstrate that BF170 hydrochloride promoted definitive hematopoiesis in vivo. During zebrafish definitive hematopoiesis, BF170 hydrochloride increases blood flow, expands hemogenic endothelium (HE) cells and promotes HSPC emergence. Mechanistically, the primary cilia-Ca2+-Notch/NO signaling pathway, which is downstream of the blood flow, mediated the effects of BF170 hydrochloride on HSPC induction in vivo. Our findings, for the first time, reveal that BF170 hydrochloride is a compound that enhances HSPC induction and may be applied to the ex vivo expansion of HSPCs.
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Affiliation(s)
- WenYe Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - YuYan Ding
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zheng Shen
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Cong Xu
- Stem Cell Program and Hematology/Oncology, Children's Hospital and Dana-Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
| | - William Yi
- Stem Cell Program and Hematology/Oncology, Children's Hospital and Dana-Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Ding Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Yi Zhou
- Stem Cell Program and Hematology/Oncology, Children's Hospital and Dana-Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Leonard I Zon
- Stem Cell Program and Hematology/Oncology, Children's Hospital and Dana-Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
- Howard Hughes Medical Institute/Children's Hospital, 300 Longwood Avenue, Karp 8, Boston, MA 02115, USA
| | - Jing-Xia Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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2
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Darroch H, Keerthisinghe P, Sung YJ, Rolland L, Prankerd-Gough A, Crosier PS, Astin JW, Hall CJ. Infection-experienced HSPCs protect against infections by generating neutrophils with enhanced mitochondrial bactericidal activity. SCIENCE ADVANCES 2023; 9:eadf9904. [PMID: 37672586 PMCID: PMC10482338 DOI: 10.1126/sciadv.adf9904] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 08/03/2023] [Indexed: 09/08/2023]
Abstract
Hematopoietic stem and progenitor cells (HSPCs) respond to infection by proliferating and generating in-demand neutrophils through a process called emergency granulopoiesis (EG). Recently, infection-induced changes in HSPCs have also been shown to underpin the longevity of trained immunity, where they generate innate immune cells with enhanced responses to subsequent microbial threats. Using larval zebrafish to live image neutrophils and HSPCs, we show that infection-experienced HSPCs generate neutrophils with enhanced bactericidal functions. Transcriptomic analysis of EG neutrophils uncovered a previously unknown function for mitochondrial reactive oxygen species in elevating neutrophil bactericidal activity. We also reveal that driving expression of zebrafish C/EBPβ within infection-naïve HSPCs is sufficient to generate neutrophils with similarly enhanced bactericidal capacity. Our work suggests that this demand-adapted source of neutrophils contributes to trained immunity by providing enhanced protection toward subsequent infections. Manipulating demand-driven granulopoiesis may provide a therapeutic strategy to boost neutrophil function and treat infectious disease.
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Affiliation(s)
- Hannah Darroch
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Pramuk Keerthisinghe
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Yih Jian Sung
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Leah Rolland
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Anneke Prankerd-Gough
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | | | - Jonathan W. Astin
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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3
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Zhong D, Jiang H, Zhou C, Ahmed A, Li H, Wei X, Lian Q, Tastemel M, Xin H, Ge M, Zhang C, Jing L. The microbiota regulates hematopoietic stem and progenitor cell development by mediating inflammatory signals in the niche. Cell Rep 2023; 42:112116. [PMID: 36795566 DOI: 10.1016/j.celrep.2023.112116] [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: 10/12/2022] [Revised: 12/23/2022] [Accepted: 01/27/2023] [Indexed: 02/17/2023] Open
Abstract
The commensal microbiota regulates the self-renewal and differentiation of hematopoietic stem and progenitor cells (HSPCs) in bone marrow. Whether and how the microbiota influences HSPC development during embryogenesis is unclear. Using gnotobiotic zebrafish, we show that the microbiota is necessary for HSPC development and differentiation. Individual bacterial strains differentially affect HSPC formation, independent of their effects on myeloid cells. Early-life dysbiosis in chd8-/- zebrafish impairs HSPC development. Wild-type microbiota promote HSPC development by controlling basal inflammatory cytokine expression in kidney niche, and chd8-/- commensals elicit elevated inflammatory cytokines that reduce HSPCs and enhance myeloid differentiation. We identify an Aeromonas veronii strain with immuno-modulatory activities that fails to induce HSPC development in wild-type fish but selectively inhibits kidney cytokine expression and rebalances HSPC development in chd8-/- zebrafish. Our studies highlight the important roles of a balanced microbiome during early HSPC development that ensure proper establishment of lineal precursor for adult hematopoietic system.
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Affiliation(s)
- Dan Zhong
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 200240, China
| | - Haowei Jiang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chengzhuo Zhou
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Abrar Ahmed
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hongji Li
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaona Wei
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qiuyu Lian
- UM-SJTU Joint Institute, Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Melodi Tastemel
- Department of Cellular and Molecular Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Hongyi Xin
- Global Institute of Future Technology, Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Mei Ge
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Laiyi Center for Biopharmaceutical R&D, Shanghai 200240, China
| | - Chenhong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Lili Jing
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 200240, China.
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4
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Hu YX, Jing Q. Zebrafish: a convenient tool for myelopoiesis research. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:2. [PMID: 36595106 PMCID: PMC9810781 DOI: 10.1186/s13619-022-00139-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/29/2022] [Indexed: 04/18/2023]
Abstract
Myelopoiesis is the process in which the mature myeloid cells, including monocytes/macrophages and granulocytes, are developed. Irregular myelopoiesis may cause and deteriorate a variety of hematopoietic malignancies such as leukemia. Myeloid cells and their precursors are difficult to capture in circulation, let alone observe them in real time. For decades, researchers had to face these difficulties, particularly in in-vivo studies. As a unique animal model, zebrafish possesses numerous advantages like body transparency and convenient genetic manipulation, which is very suitable in myelopoiesis research. Here we review current knowledge on the origin and regulation of myeloid development and how zebrafish models were applied in these studies.
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Affiliation(s)
- Yang-Xi Hu
- Department of Cardiology, Changzheng Hospital, Shanghai, 200003, China
| | - Qing Jing
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China.
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5
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Wu M, Xu J, Zhang Y, Wen Z. Learning from Zebrafish Hematopoiesis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1442:137-157. [PMID: 38228963 DOI: 10.1007/978-981-99-7471-9_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Hematopoiesis is a complex process that tightly regulates the generation, proliferation, differentiation, and maintenance of hematopoietic cells. Disruptions in hematopoiesis can lead to various diseases affecting both hematopoietic and non-hematopoietic systems, such as leukemia, anemia, thrombocytopenia, rheumatoid arthritis, and chronic granuloma. The zebrafish serves as a powerful vertebrate model for studying hematopoiesis, offering valuable insights into both hematopoietic regulation and hematopoietic diseases. In this chapter, we present a comprehensive overview of zebrafish hematopoiesis, highlighting its distinctive characteristics in hematopoietic processes. We discuss the ontogeny and modulation of both primitive and definitive hematopoiesis, as well as the microenvironment that supports hematopoietic stem/progenitor cells. Additionally, we explore the utility of zebrafish as a disease model and its potential in drug discovery, which not only advances our understanding of the regulatory mechanisms underlying hematopoiesis but also facilitates the exploration of novel therapeutic strategies for hematopoietic diseases.
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Affiliation(s)
- Mei Wu
- Affiliated Hospital of Guangdong Medical University and Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jin Xu
- South China University of Technology, School of Medicine, Guangzhou, Guangdong, China.
| | - Yiyue Zhang
- South China University of Technology, School of Medicine, Guangzhou, Guangdong, China.
| | - Zilong Wen
- Southern University of Science and Technology, School of Life Sciences, Shenzhen, Guangdong, China.
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6
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Dai Y, Wu S, Cao C, Xue R, Luo X, Wen Z, Xu J. Csf1rb regulates definitive hematopoiesis in zebrafish. Development 2022; 149:276084. [DOI: 10.1242/dev.200534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/07/2022] [Indexed: 11/20/2022]
Abstract
ABSTRACT
In vertebrates, hematopoietic stem and progenitor cells (HSPCs) are capable of self-renewal and continuously replenishing all mature blood lineages throughout life. However, the molecular signaling regulating the maintenance and expansion of HSPCs remains incompletely understood. Colony-stimulating factor 1 receptor (CSF1R) is believed to be the primary regulator for the myeloid lineage but not HSPC development. Here, we show a surprising role of Csf1rb, a zebrafish homolog of mammalian CSF1R, in preserving the HSPC pool by maintaining the proliferation of HSPCs. Deficiency of csf1rb leads to a reduction in both HSPCs and their differentiated progenies, including myeloid, lymphoid and erythroid cells at early developmental stages. Likewise, the absence of csf1rb conferred similar defects upon HSPCs and leukocytes in adulthood. Furthermore, adult hematopoietic cells from csf1rb mutants failed to repopulate immunodeficient zebrafish. Interestingly, loss-of-function and gain-of-function assays suggested that the canonical ligands for Csf1r in zebrafish, including Csf1a, Csf1b and Il34, were unlikely to be ligands of Csf1rb. Thus, our data indicate a previously unappreciated role of Csf1r in maintaining HSPCs, independently of known ligands.
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Affiliation(s)
- Yimei Dai
- School of Medicine, South China University of Technology 1 Laboratory of Immunology & Regeneration , , Guangzhou 510006, China
| | - Shuting Wu
- State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, the Hong Kong University of Science and Technology 2 Division of Life Science , , Clear Water Bay, Kowloon, Hong Kong , People's Republic of China
| | - Canran Cao
- School of Medicine, South China University of Technology 1 Laboratory of Immunology & Regeneration , , Guangzhou 510006, China
| | - Rongtao Xue
- Nanfang Hospital, Southern Medical University 3 Department of Hematology , , Guangzhou, Guangdong 510515 , China
| | - Xuefen Luo
- State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, the Hong Kong University of Science and Technology 2 Division of Life Science , , Clear Water Bay, Kowloon, Hong Kong , People's Republic of China
| | - Zilong Wen
- State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, the Hong Kong University of Science and Technology 2 Division of Life Science , , Clear Water Bay, Kowloon, Hong Kong , People's Republic of China
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen Peking University−Hong Kong University of Science and Technology Medical Center 4 , Shenzhen 518055 , China
| | - Jin Xu
- School of Medicine, South China University of Technology 1 Laboratory of Immunology & Regeneration , , Guangzhou 510006, China
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7
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Agarwala S, Kim KY, Phan S, Ju S, Kong YE, Castillon GA, Bushong EA, Ellisman MH, Tamplin OJ. Defining the ultrastructure of the hematopoietic stem cell niche by correlative light and electron microscopy. eLife 2022; 11:64835. [PMID: 35943143 PMCID: PMC9391045 DOI: 10.7554/elife.64835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 07/04/2022] [Indexed: 11/15/2022] Open
Abstract
The blood system is supported by hematopoietic stem and progenitor cells (HSPCs) found in a specialized microenvironment called the niche. Many different niche cell types support HSPCs, however how they interact and their ultrastructure has been difficult to define. Here, we show that single endogenous HSPCs can be tracked by light microscopy, then identified by serial block-face scanning electron microscopy (SBEM) at multiscale levels. Using the zebrafish larval kidney marrow (KM) niche as a model, we followed single fluorescently labeled HSPCs by light sheet microscopy, then confirmed their exact location in a 3D SBEM dataset. We found a variety of different configurations of HSPCs and surrounding niche cells, suggesting there could be functional heterogeneity in sites of HSPC lodgement. Our approach also allowed us to identify dopamine beta-hydroxylase (dbh) positive ganglion cells as a previously uncharacterized functional cell type in the HSPC niche. By integrating multiple imaging modalities, we could resolve the ultrastructure of single rare cells deep in live tissue and define all contacts between an HSPC and its surrounding niche cell types.
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Affiliation(s)
- Sobhika Agarwala
- Department of Pharmacology, University of Illinois at Chicago, Chicago, United States
| | - Keun-Young Kim
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Sebastien Phan
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Saeyeon Ju
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Ye Eun Kong
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Guillaume A Castillon
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Eric A Bushong
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Mark H Ellisman
- Department of Neurosciences, University of California, San Diego, La Jolla, United States
| | - Owen J Tamplin
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, United States
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8
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Hariom SK, Nelson EJR. Effects of short-term hypergravity on hematopoiesis and vasculogenesis in embryonic zebrafish. LIFE SCIENCES IN SPACE RESEARCH 2022; 34:21-29. [PMID: 35940686 DOI: 10.1016/j.lssr.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Microgravity and hypergravity-induced changes affect both molecular and organismal responses as demonstrated in various animal models. In addition to its inherent advantages, zebrafish have been shown to be incredibly resilient to altered gravity conditions. To understand the effects of altered gravity on animal physiology, especially the cardiovascular system, we used 2 h centrifugations to simulate short-term hypergravity and investigated its effects on zebrafish development. Morphological and in situ hybridization observations show a comparable overall development in both control and treated embryos. Spatiotemporal analysis revealed varied gene expression patterns across different developmental times. Genes driving primitive hematopoiesis (tal1, gata1) and vascular specificity (vegf, etv2) displayed an early onset of expression following hypergravity exposure. Upregulated expression of hematopoiesis-linked genes, such as runx1, cmyb, nos, and pdgf family demonstrate short-term hypergravity to be a factor inducing definitive hematopoiesis through a combinatorial mechanism. We speculate that these short-term hypergravity-induced physiological changes in the developing zebrafish embryos constitute a rescue mechanism to regain homeostasis.
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Affiliation(s)
- Senthil Kumar Hariom
- SMV124A, Gene Therapy Laboratory, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, TN 632 014, India
| | - Everette Jacob Remington Nelson
- SMV124A, Gene Therapy Laboratory, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, TN 632 014, India.
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9
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Pezzotta A, Gentile I, Genovese D, Totaro MG, Battaglia C, Leung AYH, Fumagalli M, Parma M, Cazzaniga G, Fazio G, Alcalay M, Marozzi A, Pistocchi A. HDAC6 inhibition decreases leukemic stem cell expansion driven by Hedgehog hyperactivation by restoring primary ciliogenesis. Pharmacol Res 2022; 183:106378. [PMID: 35918044 DOI: 10.1016/j.phrs.2022.106378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 06/27/2022] [Accepted: 07/29/2022] [Indexed: 10/16/2022]
Abstract
Aberrant activation of the Hh pathway promotes cell proliferation and multi-drug resistance (MDR) in several cancers, including Acute Myeloid Leukemia (AML). Notably, only one Hh inhibitor, glasdegib, has been approved for AML treatment, and most patients eventually relapse, highlighing the urgent need ti discover new therapeutic targets. Hh signal is transduced through the membrane of the primary cilium, a structure expressed by non-proliferating mammalian cells, whose stabilization depends on the activity of HDAC6. Here we describe a positive correlation between Hh, HDAC6, and MDR genes in a cohort of adult AML patients, human leukemic cell lines, and a zebrafish model of Hh overexpression. The hyper-activation of Hh or HDAC6 in zebrafish drove the increased proliferation of hematopoietic stem and progenitor cells (HSPCs). Interestingly, this phenotype was rescued by inhibition of HDAC6 but not of Hh. Also, in human leukemic cell lines, a reduction in vitality was obtained through HDAC6, but not Hh inhibition. Our data showed the presence of a cross-talk between Hh and HDAC6 mediated by stabilization of the primary cilium, which we detect for the first time in zebrafish HSPCs. Inhibition of HDAC6 activity alone or in combination therapy with the chemotherapeutic agent cytarabine, efficiently rescued the hematopoietic phenotype. Our results open the possibility to introduce HDAC6 as therapeutic target to reduce proliferation of leukemic blasts in AML patients.
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Affiliation(s)
- Alex Pezzotta
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milano, Italy
| | - Ilaria Gentile
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milano, Italy
| | - Donatella Genovese
- Dipartimento di Oncologia Sperimentale, Istituto Europeo di Oncologia IRCCS, Milano, Italy
| | | | - Cristina Battaglia
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milano, Italy
| | | | - Monica Fumagalli
- Hospital San Gerardo, Clinica Ematologica e Centro Trapianti di Midollo Osseo, Monza, Italy
| | - Matteo Parma
- Hospital San Gerardo, Clinica Ematologica e Centro Trapianti di Midollo Osseo, Monza, Italy
| | - Gianni Cazzaniga
- Centro Ricerca Tettamanti, Clinica Pediatrica Università di Milano-Bicocca, Centro Maria Letizia Verga, Monza, Italy
| | - Grazia Fazio
- Centro Ricerca Tettamanti, Clinica Pediatrica Università di Milano-Bicocca, Centro Maria Letizia Verga, Monza, Italy
| | - Myriam Alcalay
- Dipartimento di Oncologia Sperimentale, Istituto Europeo di Oncologia IRCCS, Milano, Italy; Dipartimento di Oncologia ed Emato-Oncologia, Università degli Studi di Milano, Milano, Italy
| | - Anna Marozzi
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milano, Italy
| | - Anna Pistocchi
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milano, Italy.
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10
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Using the Zebrafish as a Genetic Model to Study Erythropoiesis. Int J Mol Sci 2021; 22:ijms221910475. [PMID: 34638816 PMCID: PMC8508994 DOI: 10.3390/ijms221910475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/18/2021] [Accepted: 09/25/2021] [Indexed: 11/30/2022] Open
Abstract
Vertebrates generate mature red blood cells (RBCs) via a highly regulated, multistep process called erythropoiesis. Erythropoiesis involves synthesis of heme and hemoglobin, clearance of the nuclei and other organelles, and remodeling of the plasma membrane, and these processes are exquisitely coordinated by specific regulatory factors including transcriptional factors and signaling molecules. Defects in erythropoiesis can lead to blood disorders such as congenital dyserythropoietic anemias, Diamond–Blackfan anemias, sideroblastic anemias, myelodysplastic syndrome, and porphyria. The molecular mechanisms of erythropoiesis are highly conserved between fish and mammals, and the zebrafish (Danio rerio) has provided a powerful genetic model for studying erythropoiesis. Studies in zebrafish have yielded important insights into RBC development and established a number of models for human blood diseases. Here, we focus on latest discoveries of the molecular processes and mechanisms regulating zebrafish erythropoiesis and summarize newly established zebrafish models of human anemias.
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11
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Ulloa BA, Habbsa SS, Potts KS, Lewis A, McKinstry M, Payne SG, Flores JC, Nizhnik A, Feliz Norberto M, Mosimann C, Bowman TV. Definitive hematopoietic stem cells minimally contribute to embryonic hematopoiesis. Cell Rep 2021; 36:109703. [PMID: 34525360 PMCID: PMC8928453 DOI: 10.1016/j.celrep.2021.109703] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/29/2021] [Accepted: 08/20/2021] [Indexed: 01/23/2023] Open
Abstract
Hematopoietic stem cells (HSCs) are rare cells that arise in the embryo
and sustain adult hematopoiesis. Although the functional potential of nascent
HSCs is detectable by transplantation, their native contribution during
development is unknown, in part due to the overlapping genesis and marker gene
expression with other embryonic blood progenitors. Using single-cell
transcriptomics, we define gene signatures that distinguish nascent HSCs from
embryonic blood progenitors. Applying a lineage-tracing approach to selectively
track HSC output in situ, we find significantly delayed
lymphomyeloid contribution. An inducible HSC injury model demonstrates a
negligible impact on larval lymphomyelopoiesis following HSC depletion. HSCs are
not merely dormant at this developmental stage, as they showed robust
regeneration after injury. Combined, our findings illuminate that nascent HSCs
self-renew but display differentiation latency, while HSC-independent embryonic
progenitors sustain developmental hematopoiesis. Understanding these differences
could improve de novo generation and expansion of functional
HSCs. Ulloa et al. demonstrate that nascent HSCs robustly regenerate but
display differentiation latency, while HSC-independent embryonic progenitors
sustain developmental hematopoiesis. Their findings have implications for
dissecting the programs underlying the genesis of bona fide HSCs.
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Affiliation(s)
- Bianca A Ulloa
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Samima S Habbsa
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Kathryn S Potts
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Alana Lewis
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Mia McKinstry
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Sara G Payne
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Julio C Flores
- Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Anastasia Nizhnik
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Maria Feliz Norberto
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA
| | - Christian Mosimann
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine and Children's Hospital Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Teresa V Bowman
- Albert Einstein College of Medicine, Department of Developmental and Molecular Biology, Bronx, NY, USA; Albert Einstein College of Medicine, Gottesman Institute of Stem Cell Biology and Regenerative Medicine, Bronx, NY, USA; Albert Einstein College of Medicine and Montefiore Medical Center, Department of Medicine (Oncology), Bronx, NY, USA.
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12
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Peña OA, Lubin A, Rowell J, Hoade Y, Khokhar N, Lemmik H, Mahony C, Dace P, Umamahesan C, Payne EM. Differential Requirement of Gata2a and Gata2b for Primitive and Definitive Myeloid Development in Zebrafish. Front Cell Dev Biol 2021; 9:708113. [PMID: 34589480 PMCID: PMC8475954 DOI: 10.3389/fcell.2021.708113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/10/2021] [Indexed: 11/14/2022] Open
Abstract
Germline loss or mutation of one copy of the transcription factor GATA2 in humans leads to a range of clinical phenotypes affecting hematopoietic, lymphatic and vascular systems. GATA2 heterozygous mice show only a limited repertoire of the features observed in humans. Zebrafish have two copies of the Gata2 gene as a result of an additional round of ancestral whole genome duplication. These genes, Gata2a and Gata2b, show distinct but overlapping expression patterns, and between them, highlight a significantly broader range of the phenotypes observed in GATA2 deficient syndromes, than each one alone. In this manuscript, we use mutants for Gata2a and Gata2b to interrogate the effects on hematopoiesis of these two ohnologs, alone and in combination, during development in order to further define the role of GATA2 in developmental hematopoiesis. We define unique roles for each ohnolog at different stages of developmental myelopoiesis and for the emergence of hematopoietic stem and progenitor cells. These effects are not additive in the haploinsufficient state suggesting a redundancy between these two genes in hematopoietic stem and progenitor cells. Rescue studies additionally support that Gata2b can compensate for the effects of Gata2a loss. Finally we show that adults with loss of combined heterozygosity show defects in the myeloid compartment consistent with GATA2 loss in humans. These results build on existing knowledge from other models of GATA2 deficiency and refine our understanding of the early developmental effects of GATA2. In addition, these studies shed light on the complexity and potential structure-function relationships as well as sub-functionalization of Gata2 genes in the zebrafish model.
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Affiliation(s)
- Oscar A. Peña
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Alexandra Lubin
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Jasmine Rowell
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Yvette Hoade
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Noreen Khokhar
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Hanna Lemmik
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Christopher Mahony
- Department of Pathology and Immunology, School of Medicine, University of Geneva, Geneva, Switzerland
| | - Phoebe Dace
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Chianna Umamahesan
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Elspeth M. Payne
- Research Department of Haematology, Cancer Institute, University College London, London, United Kingdom
- National Institute for Health Research (NIHR)/UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust, London, United Kingdom
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13
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Feng Z, Lin C, Tu L, Su M, Song C, Liu S, Suryanto ME, Hsiao CD, Li L. FDA-Approved Drug Screening for Compounds That Facilitate Hematopoietic Stem and Progenitor Cells (HSPCs) Expansion in Zebrafish. Cells 2021; 10:cells10082149. [PMID: 34440919 PMCID: PMC8393331 DOI: 10.3390/cells10082149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
Hematopoietic stem cells (HSCs) are a specialized subset of cells with self-renewal and multilineage differentiation potency, which are essential for their function in bone marrow or umbilical cord blood transplantation to treat blood disorders. Expanding the hematopoietic stem and progenitor cells (HSPCs) ex vivo is essential to understand the HSPCs-based therapies potency. Here, we established a screening system in zebrafish by adopting an FDA-approved drug library to identify candidates that could facilitate HSPC expansion. To date, we have screened 171 drugs of 7 categories, including antibacterial, antineoplastic, glucocorticoid, NSAIDS, vitamins, antidepressant, and antipsychotic drugs. We found 21 drugs that contributed to HSPCs expansion, 32 drugs’ administration caused HSPCs diminishment and 118 drugs’ treatment elicited no effect on HSPCs amplification. Among these drugs, we further investigated the vitamin drugs ergocalciferol and panthenol, taking advantage of their acceptability, limited side-effects, and easy delivery. These two drugs, in particular, efficiently expanded the HSPCs pool in a dose-dependent manner. Their application even mitigated the compromised hematopoiesis in an ikzf1−/− mutant. Taken together, our study implied that the larval zebrafish is a suitable model for drug repurposing of effective molecules (especially those already approved for clinical use) that can facilitate HSPCs expansion.
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Affiliation(s)
- Zhi Feng
- Key Laboratory of Freshwater Fish Reproduction and Development, Institute of Developmental Biology and Regenerative Medicine, Ministry of Education, Southwest University, Chongqing 400715, China; (Z.F.); (C.L.); (L.T.); (M.S.); (C.S.); (S.L.)
| | - Chenyu Lin
- Key Laboratory of Freshwater Fish Reproduction and Development, Institute of Developmental Biology and Regenerative Medicine, Ministry of Education, Southwest University, Chongqing 400715, China; (Z.F.); (C.L.); (L.T.); (M.S.); (C.S.); (S.L.)
| | - Limei Tu
- Key Laboratory of Freshwater Fish Reproduction and Development, Institute of Developmental Biology and Regenerative Medicine, Ministry of Education, Southwest University, Chongqing 400715, China; (Z.F.); (C.L.); (L.T.); (M.S.); (C.S.); (S.L.)
| | - Ming Su
- Key Laboratory of Freshwater Fish Reproduction and Development, Institute of Developmental Biology and Regenerative Medicine, Ministry of Education, Southwest University, Chongqing 400715, China; (Z.F.); (C.L.); (L.T.); (M.S.); (C.S.); (S.L.)
- Research Center of Stem Cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Chunyu Song
- Key Laboratory of Freshwater Fish Reproduction and Development, Institute of Developmental Biology and Regenerative Medicine, Ministry of Education, Southwest University, Chongqing 400715, China; (Z.F.); (C.L.); (L.T.); (M.S.); (C.S.); (S.L.)
| | - Shengnan Liu
- Key Laboratory of Freshwater Fish Reproduction and Development, Institute of Developmental Biology and Regenerative Medicine, Ministry of Education, Southwest University, Chongqing 400715, China; (Z.F.); (C.L.); (L.T.); (M.S.); (C.S.); (S.L.)
| | - Michael Edbert Suryanto
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan;
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan;
- Center for Nanotechnology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
- Research Center for Aquatic Toxicology and Pharmacology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
- Correspondence: (C.-D.H.); (L.L.)
| | - Li Li
- Research Center of Stem Cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
- Correspondence: (C.-D.H.); (L.L.)
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14
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Greenspan LJ, Weinstein BM. To be or not to be: endothelial cell plasticity in development, repair, and disease. Angiogenesis 2021; 24:251-269. [PMID: 33449300 PMCID: PMC8205957 DOI: 10.1007/s10456-020-09761-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 12/14/2020] [Indexed: 02/08/2023]
Abstract
Endothelial cells display an extraordinary plasticity both during development and throughout adult life. During early development, endothelial cells assume arterial, venous, or lymphatic identity, while selected endothelial cells undergo additional fate changes to become hematopoietic progenitor, cardiac valve, and other cell types. Adult endothelial cells are some of the longest-lived cells in the body and their participation as stable components of the vascular wall is critical for the proper function of both the circulatory and lymphatic systems, yet these cells also display a remarkable capacity to undergo changes in their differentiated identity during injury, disease, and even normal physiological changes in the vasculature. Here, we discuss how endothelial cells become specified during development as arterial, venous, or lymphatic endothelial cells or convert into hematopoietic stem and progenitor cells or cardiac valve cells. We compare findings from in vitro and in vivo studies with a focus on the zebrafish as a valuable model for exploring the signaling pathways and environmental cues that drive these transitions. We also discuss how endothelial plasticity can aid in revascularization and repair of tissue after damage- but may have detrimental consequences under disease conditions. By better understanding endothelial plasticity and the mechanisms underlying endothelial fate transitions, we can begin to explore new therapeutic avenues.
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Affiliation(s)
- Leah J Greenspan
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Brant M Weinstein
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA.
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15
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A single-cell resolution developmental atlas of hematopoietic stem and progenitor cell expansion in zebrafish. Proc Natl Acad Sci U S A 2021; 118:2015748118. [PMID: 33785593 PMCID: PMC8040670 DOI: 10.1073/pnas.2015748118] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The caudal hematopoietic tissue (CHT) is characterized as a hematopoietic organ for fetal hematopoietic stem and progenitor cell (HSPC) expansion in zebrafish. In this study, we used scRNA-seq combined with functional assays to decode the developing CHT. First, we resolved fetal HSPC heterogeneity, manifested as lineage priming and metabolic gene signatures. We further analyzed the cellular interactions among nonhematopoietic niche components and HSPCs and identified an endothelial cell-specific factor, Gpr182, followed by experimental validation of its role in promoting HSPC expansion. Finally, we uncovered the conservation and divergence of developmental hematopoiesis between human fetal liver and zebrafish CHT. Our study provides a valuable resource for fetal HSPC development and clues to establish a supportive niche for HSPC expansion in vitro. During vertebrate embryogenesis, fetal hematopoietic stem and progenitor cells (HSPCs) exhibit expansion and differentiation properties in a supportive hematopoietic niche. To profile the developmental landscape of fetal HSPCs and their local niche, here, using single-cell RNA-sequencing, we deciphered a dynamic atlas covering 28,777 cells and 9 major cell types (23 clusters) of zebrafish caudal hematopoietic tissue (CHT). We characterized four heterogeneous HSPCs with distinct lineage priming and metabolic gene signatures. Furthermore, we investigated the regulatory mechanism of CHT niche components for HSPC development, with a focus on the transcription factors and ligand–receptor networks involved in HSPC expansion. Importantly, we identified an endothelial cell-specific G protein–coupled receptor 182, followed by in vivo and in vitro functional validation of its evolutionally conserved role in supporting HSPC expansion in zebrafish and mice. Finally, comparison between zebrafish CHT and human fetal liver highlighted the conservation and divergence across evolution. These findings enhance our understanding of the regulatory mechanism underlying hematopoietic niche for HSPC expansion in vivo and provide insights into improving protocols for HSPC expansion in vitro.
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16
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Huang Z, Chen K, Chi Y, Jin H, Li L, Zhang W, Xu J, Zhang Y. Runx1 regulates zebrafish neutrophil maturation via synergistic interaction with c-Myb. J Biol Chem 2021; 296:100272. [PMID: 33434583 PMCID: PMC7948814 DOI: 10.1016/j.jbc.2021.100272] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 11/18/2022] Open
Abstract
Neutrophils play an essential role in the innate immune defense system in vertebrates. During hematopoiesis, the full function of neutrophils involves maturation of granules and related enzymes. Yet, transcription regulators that promote neutrophil maturation remain largely undefined. Here, two hematopoiesis-defective zebrafish mutants, runx1w84x and c-mybhkz3, were used to investigate the in vivo roles of Runx1 in cooperation with c-Myb in regulating neutrophil maturation. Loss of runx1 impairs primitive neutrophil development. Additional regulation of c-myb+/− and c-myb−/− induces a more severe phenotypes suggesting a synergistic genetic interaction between c-myb and runx1 in neutrophil maturation. Further studies revealed that the two transcription factors act cooperatively to control neutrophil maturation processes via transactivating a series of neutrophil maturation-related genes. These data reveal the in vivo roles of Runx1 in regulating primitive neutrophil maturation while also indicating a novel genetic and molecular orchestration of Runx1 and c-Myb in myeloid cell development. The study will provide new evidence on the regulation of neutrophil maturation during hematopoiesis.
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Affiliation(s)
- Zhibin Huang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, P.R. China
| | - Kemin Chen
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, P.R. China
| | - Yali Chi
- Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, P.R. China
| | - Hao Jin
- State Key Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, P.R. China
| | - Li Li
- The Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Area, School of Life Science, Southwest University, Chongqing, P.R. China
| | - Wenqing Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, P.R. China
| | - Jin Xu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, P.R. China
| | - Yiyue Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, P.R. China.
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17
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Abstract
Embryonic definitive hematopoiesis generates hematopoietic stem and progenitor cells (HSPCs) essential for establishment and maintenance of the adult blood system. This process requires the specification of a subset of vascular endothelial cells to become blood-forming, or hemogenic, and the subsequent endothelial-to-hematopoietic transition to generate HSPCs therefrom. The mechanisms that regulate these processes are under intensive investigation, as their recapitulation in vitro from human pluripotent stem cells has the potential to generate autologous HSPCs for clinical applications. In this review, we provide an overview of hemogenic endothelial cell development and highlight the molecular events that govern hemogenic specification of vascular endothelial cells and the generation of multilineage HSPCs from hemogenic endothelium. We also discuss the impact of hemogenic endothelial cell development on adult hematopoiesis.
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Affiliation(s)
- Yinyu Wu
- Departments of Medicine and Genetics, Yale Cardiovascular Research Center, Vascular Biology and Therapeutics Program, and Yale Stem Cell Center, Yale University School of Medicine, New Haven, Connecticut 06510, USA;
| | - Karen K Hirschi
- Departments of Medicine and Genetics, Yale Cardiovascular Research Center, Vascular Biology and Therapeutics Program, and Yale Stem Cell Center, Yale University School of Medicine, New Haven, Connecticut 06510, USA; .,Department of Cell Biology, University of Virginia, Charlottesville, Virginia 22908, USA;
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18
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Lu X, Zhang Y, Liu F, Wang L. Rac2 Regulates the Migration of T Lymphoid Progenitors to the Thymus during Zebrafish Embryogenesis. THE JOURNAL OF IMMUNOLOGY 2020; 204:2447-2454. [PMID: 32198141 DOI: 10.4049/jimmunol.1901494] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 02/12/2020] [Indexed: 12/30/2022]
Abstract
The caudal hematopoietic tissue in zebrafish, the equivalent to the fetal liver in mammals, is an intermediate hematopoietic niche for the maintenance and differentiation of hematopoietic stem and progenitor cells before homing to the thymus and kidney marrow. As one of the ultimate hematopoietic organs, the thymus sustains T lymphopoiesis, which is essential for adaptive immune system. However, the mechanism of prethymic T lymphoid progenitors migrating to the thymus remains elusive. In this study, we identify an Rho GTPase Rac2 as a modulator of T lymphoid progenitor homing to the thymus in zebrafish. rac2-Deficient embryos show the inability of T lymphoid progenitors homing to the thymus because of defective cell-autonomous motility. Mechanistically, we demonstrate that Rac2 regulates homing of T lymphoid progenitor through Pak1-mediated AKT pathway. Taken together, our work reveals an important function of Rac2 in directing T lymphoid progenitor migration to the thymus during zebrafish embryogenesis.
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Affiliation(s)
- Xinyan Lu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.,State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; and.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanlin Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.,State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; and
| | - Feng Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; and .,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lu Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China;
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19
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Stanic K, Reig G, Figueroa RJ, Retamal PA, Wichmann IA, Opazo JC, Owen GI, Corvalán AH, Concha ML, Amigo JD. The Reprimo gene family member, reprimo-like (rprml), is required for blood development in embryonic zebrafish. Sci Rep 2019; 9:7131. [PMID: 31073223 PMCID: PMC6509255 DOI: 10.1038/s41598-019-43436-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 04/24/2019] [Indexed: 11/09/2022] Open
Abstract
The Reprimo gene family comprises a group of single-exon genes for which their physiological function remains poorly understood. Heretofore, mammalian Reprimo (RPRM) has been described as a putative p53-dependent tumor suppressor gene that functions at the G2/M cell cycle checkpoint. Another family member, Reprimo-like (RPRML), has not yet an established role in physiology or pathology. Importantly, RPRML expression pattern is conserved between zebrafish and human species. Here, using CRISPR-Cas9 and antisense morpholino oligonucleotides, we disrupt the expression of rprml in zebrafish and demonstrate that its loss leads to impaired definitive hematopoiesis. The formation of hemangioblasts and the primitive wave of hematopoiesis occur normally in absence of rprml. Later in development there is a significant reduction in erythroid-myeloid precursors (EMP) at the posterior blood island (PBI) and a significant decline of definitive hematopoietic stem/progenitor cells (HSPCs). Furthermore, loss of rprml also increases the activity of caspase-3 in endothelial cells within the caudal hematopoietic tissue (CHT), the first perivascular niche where HSPCs reside during zebrafish embryonic development. Herein, we report an essential role for rprml during hematovascular development in zebrafish embryos, specifically during the definitive waves of hematopoiesis, indicating for the first time a physiological role for the rprml gene.
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Affiliation(s)
- Karen Stanic
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - German Reig
- Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Universidad Bernardo O´Higgins, Escuela de Tecnología Médica and Centro Integrativo de Biología y Química Aplicada (CIBQA), Santiago, Chile
| | - Ricardo J Figueroa
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pedro A Retamal
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ignacio A Wichmann
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile.,Laboratorio de Oncología, Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan C Opazo
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Gareth I Owen
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Alejandro H Corvalán
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile.,Laboratorio de Oncología, Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Miguel L Concha
- Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Biomedical Neuroscience Institute, Santiago, Chile, Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Julio D Amigo
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
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20
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Zhang A, Wu M, Tan J, Yu N, Xu M, Yu X, Liu W, Zhang Y. Establishment of a zebrafish hematological disease model induced by 1,4-benzoquinone. Dis Model Mech 2019; 12:dmm.037903. [PMID: 30898970 PMCID: PMC6451425 DOI: 10.1242/dmm.037903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 03/11/2019] [Indexed: 12/16/2022] Open
Abstract
Benzene exposure is associated with various hematological disorders, in particular leukemia. The reactive metabolite of benzene, 1,4-benzoquinone (BQ), generated in bone marrow, is suggested to be a key molecule in mediating benzene-induced hematotoxicity and carcinogenicity. However, its pathogenic role remains largely unknown due to a lack of suitable vertebrate whole-organism models. Here, we present an in vivo study to reveal the effect of BQ exposure on hematotoxicity in zebrafish. From embryonic stages to adulthood, BQ exposure suppressed erythroid and lymphoid hematopoiesis but led to abnormal accumulation of myeloid cells and precursors, which resembles benzene-induced cytopenia and myeloid dysplasia in humans. This myeloid expansion is caused by granulocyte, but not macrophage, lineage, emphasizing the significant role of lineage specificity in BQ-mediated hematopoietic toxicity. Analysis of the c-myb (also known as myb)-deficient mutant cmybhkz3 revealed that BQ induced neutrophilia in a c-myb-dependent manner, demonstrating that c-myb is a key intrinsic mediator of BQ hematotoxicity. Our study reveals that BQ causes lineage-specific hematotoxicity in zebrafish from embryonic stages to adulthood. Since c-myb is indispensable for BQ to induce neutrophilia, c-myb could serve as a potential drug target for reversing BQ hematotoxicity. Summary: Acute exposure to 1,4-benzoquinone leads to lineage-specific hematotoxicity in zebrafish from embryonic stages to adulthood, resembling benzene-induced cytopenia and myeloid dysplasia in humans.
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Affiliation(s)
- Ao Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Mei Wu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Junliang Tan
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ning Yu
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Mengchang Xu
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xutong Yu
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wei Liu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Yiyue Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China
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21
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Cool T, Forsberg EC. Chasing Mavericks: The quest for defining developmental waves of hematopoiesis. Curr Top Dev Biol 2019; 132:1-29. [PMID: 30797507 DOI: 10.1016/bs.ctdb.2019.01.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Hematopoiesis is the process by which mature blood and immune cells are produced from hematopoietic stem and progenitor cells (HSCs and HSPCs). The last several decades of research have shed light on the origin of HSCs, as well as the heterogeneous pools of fetal progenitors that contribute to lifelong hematopoiesis. The overarching concept that hematopoiesis occurs in dynamic, overlapping waves throughout development, with each wave contributing to both continuous and developmentally limited cell types, has been solidified over the years. However, recent advances in our ability to track the production of hematopoietic cells in vivo have challenged several long-held dogmas on the origin and persistence of distinct hematopoietic cell types. In this review, we highlight emerging concepts in hematopoietic development and identify unanswered questions.
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Affiliation(s)
- Taylor Cool
- Institute for the Biology of Stem Cells, Program in Molecular, Cell, and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA, United States
| | - E Camilla Forsberg
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA, United States.
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22
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Ferri-Lagneau KF, Haider J, Sang S, Leung T. Rescue of hematopoietic stem/progenitor cells formation in plcg1 zebrafish mutant. Sci Rep 2019; 9:244. [PMID: 30664660 PMCID: PMC6341084 DOI: 10.1038/s41598-018-36338-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/19/2018] [Indexed: 12/23/2022] Open
Abstract
Hematopoietic stem/progenitor cells (HSPC) in zebrafish emerge from the aortic hemogenic endothelium (HE) and migrate towards the caudal hematopoietic tissue (CHT), where they expand and differentiate during definitive hematopoiesis. Phospholipase C gamma 1 (Plcγ1) has been implicated for hematopoiesis in vivo and in vitro and is also required to drive arterial and HSPC formation. Genetic mutation in plcg1-/- (y10 allele) completely disrupts the aortic blood flow, specification of arterial fate, and HSPC formation in zebrafish embryos. We previously demonstrated that ginger treatment promoted definitive hematopoiesis via Bmp signaling. In this paper, we focus on HSPC development in plcg1-/- mutants and show that ginger/10-gingerol (10-G) can rescue the expression of arterial and HSPC markers in the HE and CHT in plcg1-/- mutant embryos. We demonstrate that ginger can induce scl/runx1 expression, and that rescued HE fate is dependent on Bmp and Notch. Bmp and Notch are known to regulate nitric oxide (NO) production and NO can induce hematopoietic stem cell fate. We show that ginger produces a robust up-regulation of NO. Taken together, we suggest in this paper that Bmp, Notch and NO are potential players that mediate the effect of ginger/10-G for rescuing the genetic defects in blood vessel specification and HSPC formation in plcg1-/- mutants. Understanding the molecular mechanisms of HSPC development in vivo is critical for understanding HSPC expansion, which will have a positive impact in regenerative medicine.
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Affiliation(s)
- Karine F Ferri-Lagneau
- The Biomedical/Biotechnology Research Institute, North Carolina Central University, North Carolina Research Campus, Nutrition Research Building, Kannapolis, NC, 28081, USA
| | - Jamil Haider
- The Biomedical/Biotechnology Research Institute, North Carolina Central University, North Carolina Research Campus, Nutrition Research Building, Kannapolis, NC, 28081, USA
| | - Shengmin Sang
- Laboratory for Functional Foods and Human Health, Center for Excellence in Post-Harvest Technologies, North Carolina A&T State University, North Carolina Research Campus, Nutrition Research Building, Kannapolis, NC, 28081, USA
| | - TinChung Leung
- The Biomedical/Biotechnology Research Institute, North Carolina Central University, North Carolina Research Campus, Nutrition Research Building, Kannapolis, NC, 28081, USA.
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC, 27707, USA.
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23
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Wang X, Li J, Yang Z, Wang L, Li L, Deng W, Zhou J, Wang L, Xu C, Chen Q, Wang QK. phlda3 overexpression impairs specification of hemangioblasts and vascular development. FEBS J 2018; 285:4071-4081. [PMID: 30188605 PMCID: PMC6218282 DOI: 10.1111/febs.14653] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 08/20/2018] [Accepted: 09/04/2018] [Indexed: 01/25/2023]
Abstract
The phlda3 gene encodes a small, 127-amino acid protein with only a PH domain, and is involved in tumor suppression, proliferation of islet β-cells, insulin secretion, glucose tolerance, and liver injury. However, the role of phlda3 in vascular development is unknown. Here, we show that phlda3 overexpression decreases the expression levels of hemangioblast markers scl, fli1, and etsrp and intersegmental vessel (ISV) markers flk1 and cdh5, and disrupts ISV development in tg(flk1:GFP) and tg(fli1:GFP) zebrafish. Moreover, phlda3 overexpression inhibits the activation of protein kinase B (AKT) in zebrafish embryos, and the developmental defects of ISVs by phlda3 overexpression were reversed by the expression of a constitutively active form of AKT. These data suggest that phlda3 is a negative regulator of hemangioblast specification and ISV development via AKT signaling.
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Affiliation(s)
- Xiaojing Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Jia Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Zhongcheng Yang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Li Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Lei Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Wenqing Deng
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Juan Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Longfei Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Qiuyun Chen
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic; Department of Molecular Medicine, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Qing K Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic; Department of Molecular Medicine, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
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24
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He S, Chen J, Jiang Y, Wu Y, Zhu L, Jin W, Zhao C, Yu T, Wang T, Wu S, Lin X, Qu JY, Wen Z, Zhang W, Xu J. Adult zebrafish Langerhans cells arise from hematopoietic stem/progenitor cells. eLife 2018; 7:36131. [PMID: 29905527 PMCID: PMC6017808 DOI: 10.7554/elife.36131] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 06/14/2018] [Indexed: 12/12/2022] Open
Abstract
The origin of Langerhans cells (LCs), which are skin epidermis-resident macrophages, remains unclear. Current lineage tracing of LCs largely relies on the promoter-Cre-LoxP system, which often gives rise to contradictory conclusions with different promoters. Thus, reinvestigation with an improved tracing method is necessary. Here, using a laser-mediated temporal-spatial resolved cell labeling method, we demonstrated that most adult LCs originated from the ventral wall of the dorsal aorta (VDA), an equivalent to the mouse aorta, gonads, and mesonephros (AGM), where both hematopoietic stem cells (HSCs) and non-HSC progenitors are generated. Further fine-fate mapping analysis revealed that the appearance of LCs in adult zebrafish was correlated with the development of HSCs, but not T cell progenitors. Finally, we showed that the appearance of tissue-resident macrophages in the brain, liver, heart, and gut of adult zebrafish was also correlated with HSCs. Thus, the results of our study challenged the EMP-origin theory for LCs.
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Affiliation(s)
- Sicong He
- Department of Electronic and Computer Engineering, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Jiahao Chen
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yunyun Jiang
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yi Wu
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Lu Zhu
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Wan Jin
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Changlong Zhao
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Tao Yu
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
| | - Tienan Wang
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Shuting Wu
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xi Lin
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Jianan Y Qu
- Department of Electronic and Computer Engineering, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Zilong Wen
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Hong Kong, China
| | - Wenqing Zhang
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jin Xu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, China
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25
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Li K, Rodosthenous RS, Kashanchi F, Gingeras T, Gould SJ, Kuo LS, Kurre P, Lee H, Leonard JN, Liu H, Lombo TB, Momma S, Nolan JP, Ochocinska MJ, Pegtel DM, Sadovsky Y, Sánchez-Madrid F, Valdes KM, Vickers KC, Weaver AM, Witwer KW, Zeng Y, Das S, Raffai RL, Howcroft TK. Advances, challenges, and opportunities in extracellular RNA biology: insights from the NIH exRNA Strategic Workshop. JCI Insight 2018; 3:98942. [PMID: 29618663 DOI: 10.1172/jci.insight.98942] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Extracellular RNA (exRNA) has emerged as an important transducer of intercellular communication. Advancing exRNA research promises to revolutionize biology and transform clinical practice. Recent efforts have led to cutting-edge research and expanded knowledge of this new paradigm in cell-to-cell crosstalk; however, gaps in our understanding of EV heterogeneity and exRNA diversity pose significant challenges for continued development of exRNA diagnostics and therapeutics. To unravel this complexity, the NIH convened expert teams to discuss the current state of the science, define the significant bottlenecks, and brainstorm potential solutions across the entire exRNA research field. The NIH Strategic Workshop on Extracellular RNA Transport helped identify mechanistic and clinical research opportunities for exRNA biology and provided recommendations on high priority areas of research that will advance the exRNA field.
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Affiliation(s)
- Kang Li
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of California, San Francisco, and Veterans Affairs Medical Center, San Francisco, California, USA
| | | | - Fatah Kashanchi
- Laboratory of Molecular Virology, National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia, USA
| | - Thomas Gingeras
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, USA
| | - Stephen J Gould
- Department of Biological Chemistry, Johns Hopkins University, Baltimore, Maryland, USA
| | - Lillian S Kuo
- National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Peter Kurre
- Doernbecher Children's Hospital, Department of Pediatrics and Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Joshua N Leonard
- Department of Chemical and Biological Engineering, Chemistry of Life Processes Institute, Northwestern University, Evanston, Illinois, USA
| | - Huiping Liu
- Departments of Pharmacology and Medicine (Hematology and Oncology), Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Tania B Lombo
- NIH, Office of the Director, Environmental Influences on Child Health Outcomes Program, Bethesda, Maryland, USA
| | - Stefan Momma
- Institute of Neurology (Edinger Institute), Frankfurt University Medical School, German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Frankfurt, Heidelberg, Germany
| | - John P Nolan
- Scintillon Institute, San Diego, California, USA
| | | | - D Michiel Pegtel
- Department of Pathology, Cancer Center Amsterdam, Vrije Universiteit (VU) University Medical Center, Amsterdam, The Netherlands
| | - Yoel Sadovsky
- Magee-Womens Research Institute, Department of Microbiology and Molecular Genetics, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Francisco Sánchez-Madrid
- Instituto de Investigación Sanitaria Princesa, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain
| | - Kayla M Valdes
- National Center for Advancing Translational Science, Bethesda, Maryland, USA
| | - Kasey C Vickers
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Alissa M Weaver
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Kenneth W Witwer
- Department of Molecular and Comparative Pathobiology, Department of Neurology, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Yong Zeng
- Department of Chemistry, University of Kansas Cancer Center, Lawrence, Kansas, USA
| | - Saumya Das
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Robert L Raffai
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of California, San Francisco, and Veterans Affairs Medical Center, San Francisco, California, USA
| | - T Kevin Howcroft
- Cancer Immunology, Hematology, and Etiology Branch, Division of Cancer Biology, National Cancer Institute, Bethesda, Maryland, USA
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26
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The differential spatiotemporal expression pattern of shelterin genes throughout lifespan. Aging (Albany NY) 2018; 9:1219-1232. [PMID: 28437249 PMCID: PMC5425123 DOI: 10.18632/aging.101223] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 04/06/2017] [Indexed: 01/07/2023]
Abstract
Shelterin forms the core complex of telomere proteins and plays critical roles in protecting telomeres against unwanted activation of the DNA damage response and in maintaining telomere length homeostasis. Although shelterin expression is believed to be ubiquitous for stabilization of chromosomal ends. Evidences suggest that some shelterin subunits have tissue-specific functions. However, very little is known regarding how shelterin subunit gene expression is regulated during development and aging. Using two different animal models, the mouse and zebrafish, we reveal herein that shelterin subunits exhibit distinct spatial and temporal expression patterns that do not correlate with the proliferative status of the organ systems examined. Together, this work shows that the shelterin subunits exhibit distinct spatiotemporal expression patterns, suggesting important tissue-specific functions during development and aging.
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27
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Gore AV, Pillay LM, Venero Galanternik M, Weinstein BM. The zebrafish: A fintastic model for hematopoietic development and disease. WILEY INTERDISCIPLINARY REVIEWS-DEVELOPMENTAL BIOLOGY 2018; 7:e312. [PMID: 29436122 DOI: 10.1002/wdev.312] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/30/2017] [Accepted: 12/03/2017] [Indexed: 12/19/2022]
Abstract
Hematopoiesis is a complex process with a variety of different signaling pathways influencing every step of blood cell formation from the earliest precursors to final differentiated blood cell types. Formation of blood cells is crucial for survival. Blood cells carry oxygen, promote organ development and protect organs in different pathological conditions. Hematopoietic stem and progenitor cells (HSPCs) are responsible for generating all adult differentiated blood cells. Defects in HSPCs or their downstream lineages can lead to anemia and other hematological disorders including leukemia. The zebrafish has recently emerged as a powerful vertebrate model system to study hematopoiesis. The developmental processes and molecular mechanisms involved in zebrafish hematopoiesis are conserved with higher vertebrates, and the genetic and experimental accessibility of the fish and the optical transparency of its embryos and larvae make it ideal for in vivo analysis of hematopoietic development. Defects in zebrafish hematopoiesis reliably phenocopy human blood disorders, making it a highly attractive model system to screen small molecules to design therapeutic strategies. In this review, we summarize the key developmental processes and molecular mechanisms of zebrafish hematopoiesis. We also discuss recent findings highlighting the strengths of zebrafish as a model system for drug discovery against hematopoietic disorders. This article is categorized under: Adult Stem Cells, Tissue Renewal, and Regeneration > Stem Cell Differentiation and Reversion Vertebrate Organogenesis > Musculoskeletal and Vascular Nervous System Development > Vertebrates: Regional Development Comparative Development and Evolution > Organ System Comparisons Between Species.
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Affiliation(s)
- Aniket V Gore
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | - Laura M Pillay
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | - Marina Venero Galanternik
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | - Brant M Weinstein
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
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28
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Hif-1α and Hif-2α regulate hemogenic endothelium and hematopoietic stem cell formation in zebrafish. Blood 2018; 131:963-973. [PMID: 29339404 DOI: 10.1182/blood-2017-07-797795] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 01/05/2018] [Indexed: 12/18/2022] Open
Abstract
During development, hematopoietic stem cells (HSCs) derive from specialized endothelial cells (ECs) called hemogenic endothelium (HE) via a process called endothelial-to-hematopoietic transition (EHT). Hypoxia-inducible factor-1α (HIF-1α) has been reported to positively modulate EHT in vivo, but current data indicate the existence of other regulators of this process. Here we show that in zebrafish, Hif-2α also positively modulates HSC formation. Specifically, HSC marker gene expression is strongly decreased in hif-1aa;hif-1ab (hif-1α) and in hif-2aa;hif-2ab (hif-2α) zebrafish mutants and morphants. Moreover, live imaging studies reveal a positive role for hif-1α and hif-2α in regulating HE specification. Knockdown of hif-2α in hif-1α mutants leads to a greater decrease in HSC formation, indicating that hif-1α and hif-2α have partially overlapping roles in EHT. Furthermore, hypoxic conditions, which strongly stimulate HSC formation in wild-type animals, have little effect in the combined absence of Hif-1α and Hif-2α function. In addition, we present evidence for Hif and Notch working in the same pathway upstream of EHT. Both notch1a and notch1b mutants display impaired EHT, which cannot be rescued by hypoxia. However, overexpression of the Notch intracellular domain in ECs is sufficient to rescue the hif-1α and hif-2α morphant EHT phenotype, suggesting that Notch signaling functions downstream of the Hif pathway during HSC formation. Altogether, our data provide genetic evidence that both Hif-1α and Hif-2α regulate EHT upstream of Notch signaling.
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29
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Zhang Z, Liu W, Zhao L, Huang Z, Chen X, Ma N, Xu J, Zhang W, Zhang Y. Retinoblastoma 1 protects T cell maturation from premature apoptosis by inhibiting E2F1. Development 2018; 145:dev.158139. [PMID: 29229770 DOI: 10.1242/dev.158139] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 12/01/2017] [Indexed: 11/20/2022]
Abstract
T lymphocytes are key cellular components of an acquired immune system and play essential roles in cell-mediated immunity. T cell development occurs in the thymus where 95% of immature thymocytes are eliminated via apoptosis. It is known that mutation of Zeb1, one of the retinoblastoma 1 (Rb1) target genes, results in a decrease in the number of immature T cells in mice. E2F1, an RB1-interacting protein, has been shown to regulate mature T cell development by interfering with thymocyte apoptosis. However, whether Rb1 regulates thymocyte development in vivo still needs to be further investigated. Here, we use a zebrafish model to investigate the role of Rb1 in T cell development. We show that Rb1-deficient fish exhibit a significant reduction in T cell number during early development that it is attributed to the accelerated apoptosis of immature T cells in a caspase-dependent manner. We further show that E2F1 overexpression could mimic the reduced T lymphocytes phenotype of Rb1 mutants, and E2F1 knockdown could rescue the phenotype in Rb1-deficient mutants. Collectively, our data indicate that the Rb1-E2F1-caspase axis is crucial for protecting immature T cells from apoptosis during early T lymphocyte maturation.
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Affiliation(s)
- Zili Zhang
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wei Liu
- Laboratory of Developmental Biology and Regenerative Medicine, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Lingfeng Zhao
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhibin Huang
- Laboratory of Developmental Biology and Regenerative Medicine, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Xiaohui Chen
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ning Ma
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jin Xu
- Laboratory of Developmental Biology and Regenerative Medicine, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Wenqing Zhang
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China .,Laboratory of Developmental Biology and Regenerative Medicine, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Yiyue Zhang
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
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30
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Perlin JR, Robertson AL, Zon LI. Efforts to enhance blood stem cell engraftment: Recent insights from zebrafish hematopoiesis. J Exp Med 2017; 214:2817-2827. [PMID: 28830909 PMCID: PMC5626407 DOI: 10.1084/jem.20171069] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/24/2017] [Accepted: 08/02/2017] [Indexed: 12/17/2022] Open
Abstract
Hematopoietic stem cell transplantation (HSCT) is an important therapy for patients with a variety of hematological malignancies. HSCT would be greatly improved if patient-specific hematopoietic stem cells (HSCs) could be generated from induced pluripotent stem cells in vitro. There is an incomplete understanding of the genes and signals involved in HSC induction, migration, maintenance, and niche engraftment. Recent studies in zebrafish have revealed novel genes that are required for HSC induction and niche regulation of HSC homeostasis. Manipulation of these signaling pathways and cell types may improve HSC bioengineering, which could significantly advance critical, lifesaving HSCT therapies.
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Affiliation(s)
- Julie R Perlin
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA
| | - Anne L Robertson
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA
| | - Leonard I Zon
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA
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31
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Arulmozhivarman G, Kräter M, Wobus M, Friedrichs J, Bejestani EP, Müller K, Lambert K, Alexopoulou D, Dahl A, Stöter M, Bickle M, Shayegi N, Hampe J, Stölzel F, Brand M, von Bonin M, Bornhäuser M. Zebrafish In-Vivo Screening for Compounds Amplifying Hematopoietic Stem and Progenitor Cells: - Preclinical Validation in Human CD34+ Stem and Progenitor Cells. Sci Rep 2017; 7:12084. [PMID: 28935977 PMCID: PMC5608703 DOI: 10.1038/s41598-017-12360-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 09/08/2017] [Indexed: 01/13/2023] Open
Abstract
The identification of small molecules that either increase the number and/or enhance the activity of human hematopoietic stem and progenitor cells (hHSPCs) during ex vivo expansion remains challenging. We used an unbiased in vivo chemical screen in a transgenic (c-myb:EGFP) zebrafish embryo model and identified histone deacetylase inhibitors (HDACIs), particularly valproic acid (VPA), as significant enhancers of the number of phenotypic HSPCs, both in vivo and during ex vivo expansion. The long-term functionality of these expanded hHSPCs was verified in a xenotransplantation model with NSG mice. Interestingly, VPA increased CD34+ cell adhesion to primary mesenchymal stromal cells and reduced their in vitro chemokine-mediated migration capacity. In line with this, VPA-treated human CD34+ cells showed reduced homing and early engraftment in a xenograft transplant model, but retained their long-term engraftment potential in vivo, and maintained their differentiation ability both in vitro and in vivo. In summary, our data demonstrate that certain HDACIs lead to a net expansion of hHSPCs with retained long-term engraftment potential and could be further explored as candidate compounds to amplify ex-vivo engineered peripheral blood stem cells.
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Affiliation(s)
| | - Martin Kräter
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Manja Wobus
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Jens Friedrichs
- Institute of Biofunctional Polymer Materials, Leibniz Institute for Polymer Research, Max Bergmann Center of Biomaterials, Dresden, Germany
| | - Elham Pishali Bejestani
- German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Consortium for Translational Cancer Research (DKTK), partner site, Dresden, Germany
| | - Katrin Müller
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Katrin Lambert
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Dimitra Alexopoulou
- Deep Sequencing Group SFB655, Biotechnology Center, Technical University of Dresden, Dresden, Germany
| | - Andreas Dahl
- Deep Sequencing Group SFB655, Biotechnology Center, Technical University of Dresden, Dresden, Germany
| | - Martin Stöter
- Max-Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Marc Bickle
- Max-Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Nona Shayegi
- Department of Hematology, University Hospital Essen, University of Duisburg, Essen, Germany
| | - Jochen Hampe
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Friedrich Stölzel
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Michael Brand
- DFG-Center for Regenerative Therapies Dresden (CRTD) - Cluster of Excellence, Technical University of Dresden, Dresden, Germany.
| | - Malte von Bonin
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Consortium for Translational Cancer Research (DKTK), partner site, Dresden, Germany
| | - Martin Bornhäuser
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany. .,DFG-Center for Regenerative Therapies Dresden (CRTD) - Cluster of Excellence, Technical University of Dresden, Dresden, Germany.
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Habbsa S, McKinstry M, Bowman TV. “Sea”-ing Is Believing: In Vivo Imaging of Hematopoietic Stem Cells and Cancer Using Zebrafish. CURRENT STEM CELL REPORTS 2017. [DOI: 10.1007/s40778-017-0088-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Blaser BW, Moore JL, Hagedorn EJ, Li B, Riquelme R, Lichtig A, Yang S, Zhou Y, Tamplin OJ, Binder V, Zon LI. CXCR1 remodels the vascular niche to promote hematopoietic stem and progenitor cell engraftment. J Exp Med 2017; 214:1011-1027. [PMID: 28351983 PMCID: PMC5379982 DOI: 10.1084/jem.20161616] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 12/28/2016] [Accepted: 02/10/2017] [Indexed: 01/26/2023] Open
Abstract
Blaser et al. use live imaging of the zebrafish hematopoietic niche to show that cxcl8/cxcr1 signaling positively regulates HSPC engraftment by increasing HSPC-niche interactions, HSPC mitotic rate, niche size, and expression of cxcl12a in a niche-autonomous manner. The microenvironment is an important regulator of hematopoietic stem and progenitor cell (HSPC) biology. Recent advances marking fluorescent HSPCs have allowed exquisite visualization of HSPCs in the caudal hematopoietic tissue (CHT) of the developing zebrafish. Here, we show that the chemokine cxcl8 and its receptor, cxcr1, are expressed by zebrafish endothelial cells, and we identify cxcl8/cxcr1 signaling as a positive regulator of HSPC colonization. Single-cell tracking experiments demonstrated that this is a result of increases in HSPC–endothelial cell “cuddling,” HSPC residency time within the CHT, and HSPC mitotic rate. Enhanced cxcl8/cxcr1 signaling was associated with an increase in the volume of the CHT and induction of cxcl12a expression. Finally, using parabiotic zebrafish, we show that cxcr1 acts HSPC nonautonomously to improve the efficiency of donor HSPC engraftment. This work identifies a mechanism by which the hematopoietic niche remodels to promote HSPC engraftment and suggests that cxcl8/cxcr1 signaling is a potential therapeutic target in patients undergoing hematopoietic stem cell transplantation.
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Affiliation(s)
- Bradley W Blaser
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Jessica L Moore
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Elliott J Hagedorn
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Brian Li
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Raquel Riquelme
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Asher Lichtig
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Song Yang
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Yi Zhou
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
| | - Owen J Tamplin
- Department of Pharmacology, The University of Illinois College of Medicine, Chicago, IL 60612
| | - Vera Binder
- Department of Hematology and Oncology, Dr. von Hauner Children's Hospital, Ludwig-Maximilians University, 80539 Munich, Germany
| | - Leonard I Zon
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Boston, MA 02138
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34
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Nik S, Weinreb JT, Bowman TV. Developmental HSC Microenvironments: Lessons from Zebrafish. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1041:33-53. [PMID: 29204828 DOI: 10.1007/978-3-319-69194-7_4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hematopoietic stem cells (HSCs) posses the ability to maintain the blood system of an organism from birth to adulthood. The behavior of HSCs is modulated by its microenvironment. During development, HSCs acquire the instructions to self-renew and differentiate into all blood cell fates by passing through several developmental microenvironments. In this chapter, we discuss the signals and cell types that inform HSC decisions throughout ontogeny with a focus on HSC specification, mobilization, migration, and engraftment.
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Affiliation(s)
- Sara Nik
- Gottesman Institute for Stem Cell Biology and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Joshua T Weinreb
- Gottesman Institute for Stem Cell Biology and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Teresa V Bowman
- Gottesman Institute for Stem Cell Biology and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY, USA. .,Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA. .,Departments of Molecular Biology and Medicine (Oncology), Albert Einstein College of Medicine, Bronx, NY, USA.
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35
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Pillay LM, Mackowetzky KJ, Widen SA, Waskiewicz AJ. Somite-Derived Retinoic Acid Regulates Zebrafish Hematopoietic Stem Cell Formation. PLoS One 2016; 11:e0166040. [PMID: 27861498 PMCID: PMC5115706 DOI: 10.1371/journal.pone.0166040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 10/11/2016] [Indexed: 01/14/2023] Open
Abstract
Hematopoietic stem cells (HSCs) are multipotent progenitors that generate all vertebrate adult blood lineages. Recent analyses have highlighted the importance of somite-derived signaling factors in regulating HSC specification and emergence from dorsal aorta hemogenic endothelium. However, these factors remain largely uncharacterized. We provide evidence that the vitamin A derivative retinoic acid (RA) functions as an essential regulator of zebrafish HSC formation. Temporal analyses indicate that RA is required for HSC gene expression prior to dorsal aorta formation, at a time when the predominant RA synthesis enzyme, aldh1a2, is strongly expressed within the paraxial mesoderm and somites. Previous research implicated the Cxcl12 chemokine and Notch signaling pathways in HSC formation. Consequently, to understand how RA regulates HSC gene expression, we surveyed the expression of components of these pathways in RA-depleted zebrafish embryos. During somitogenesis, RA-depleted embryos exhibit altered expression of jam1a and jam2a, which potentiate Notch signaling within nascent endothelial cells. RA-depleted embryos also exhibit a severe reduction in the expression of cxcr4a, the predominant Cxcl12b receptor. Furthermore, pharmacological inhibitors of RA synthesis and Cxcr4 signaling act in concert to reduce HSC formation. Our analyses demonstrate that somite-derived RA functions to regulate components of the Notch and Cxcl12 chemokine signaling pathways during HSC formation.
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Affiliation(s)
- Laura M Pillay
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada
| | - Kacey J Mackowetzky
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada
| | - Sonya A Widen
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada
| | - Andrew Jan Waskiewicz
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada.,Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada.,Women & Children's Health Research Institute, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada
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36
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Meng P, Liu Y, Chen X, Zhang W, Zhang Y. Zebrafish Cdh5 negatively regulates mobilization of aorta-gonad-mesonephros-derived hematopoietic stem cells. J Genet Genomics 2016; 43:613-616. [PMID: 27637381 DOI: 10.1016/j.jgg.2016.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 06/28/2016] [Accepted: 08/24/2016] [Indexed: 11/18/2022]
Affiliation(s)
- Ping Meng
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yongxiang Liu
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaohui Chen
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wenqing Zhang
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yiyue Zhang
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
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37
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Hornick NI, Doron B, Abdelhamed S, Huan J, Harrington CA, Shen R, Cambronne XA, Chakkaramakkil Verghese S, Kurre P. AML suppresses hematopoiesis by releasing exosomes that contain microRNAs targeting c-MYB. Sci Signal 2016; 9:ra88. [PMID: 27601730 DOI: 10.1126/scisignal.aaf2797] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Exosomes are paracrine regulators of the tumor microenvironment and contain complex cargo. We previously reported that exosomes released from acute myeloid leukemia (AML) cells can suppress residual hematopoietic stem and progenitor cell (HSPC) function indirectly through stromal reprogramming of niche retention factors. We found that the systemic loss of hematopoietic function is also in part a consequence of AML exosome-directed microRNA (miRNA) trafficking to HSPCs. Exosomes isolated from cultured AML or the plasma from mice bearing AML xenografts exhibited enrichment of miR-150 and miR-155. HSPCs cocultured with either of these exosomes exhibited impaired clonogenicity, through the miR-150- and miR-155-mediated suppression of the translation of transcripts encoding c-MYB, a transcription factor involved in HSPC differentiation and proliferation. To discover additional miRNA targets, we captured miR-155 and its target transcripts by coimmunoprecipitation with an attenuated RNA-induced silencing complex (RISC)-trap, followed by high-throughput sequencing. This approach identified known and previously unknown miR-155 target transcripts. Integration of the miR-155 targets with information from the protein interaction database STRING revealed proteins indirectly affected by AML exosome-derived miRNA. Our findings indicate a direct effect of AML exosomes on HSPCs that, through a stroma-independent mechanism, compromises hematopoiesis. Furthermore, combining miRNA target data with protein-protein interaction data may be a broadly applicable strategy to define the effects of exosome-mediated trafficking of regulatory molecules within the tumor microenvironment.
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Affiliation(s)
- Noah I Hornick
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA. Pediatric Cancer Biology, Oregon Health & Science University, Portland, OR 97239, USA. Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Ben Doron
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA. Pediatric Cancer Biology, Oregon Health & Science University, Portland, OR 97239, USA. Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Sherif Abdelhamed
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA. Pediatric Cancer Biology, Oregon Health & Science University, Portland, OR 97239, USA. Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Jianya Huan
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA. Pediatric Cancer Biology, Oregon Health & Science University, Portland, OR 97239, USA. Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Christina A Harrington
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA. Integrated Genomics Laboratory, Oregon Health & Science University, Portland, OR 97239, USA
| | - Rongkun Shen
- Department of Biology, State University of New York, Brockport, NY 14420, USA. Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA. The College at Brockport, State University of New York, Brockport, NY 14420, USA
| | - Xiaolu A Cambronne
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Santhosh Chakkaramakkil Verghese
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA. Pediatric Cancer Biology, Oregon Health & Science University, Portland, OR 97239, USA. Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Peter Kurre
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA. Pediatric Cancer Biology, Oregon Health & Science University, Portland, OR 97239, USA. Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, OR 97239, USA. Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA.
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38
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c-Myb acts in parallel and cooperatively with Cebp1 to regulate neutrophil maturation in zebrafish. Blood 2016; 128:415-26. [DOI: 10.1182/blood-2015-12-686147] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 05/22/2016] [Indexed: 12/14/2022] Open
Abstract
Key Points
c-Myb is essential for neutrophil terminal differentiation by targeting granule gene expression. c-Myb and Cebp1 act cooperatively to regulate neutrophil maturation in zebrafish.
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39
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c-myb hyperactivity leads to myeloid and lymphoid malignancies in zebrafish. Leukemia 2016; 31:222-233. [PMID: 27457538 DOI: 10.1038/leu.2016.170] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 05/30/2016] [Accepted: 06/03/2016] [Indexed: 12/17/2022]
Abstract
The c-MYB transcription factor is a key regulator of hematopoietic cell proliferation and differentiation, and dysregulation of c-MYB activity often associates with various hematological disorders. Yet, its pathogenic role remains largely unknown due to lack of suitable animal models. Here, we report a detail characterization of a c-myb-gfp transgenic zebrafish harboring c-Myb hyperactivity (named c-mybhyper). This line exhibits abnormal granulocyte expansion that resembles human myelodysplastic syndrome (MDS) from embryonic stage to adulthood. Strikingly, a small portion of c-mybhyper adult fish develops acute myeloid leukemia-like or acute lymphoid leukemia-like disorders with age. The myeloid and lymphoid malignancies in c-mybhyper adult fish are likely caused by the hyperactivity of c-myb, resulting in the dysregulation of a number of cell-cycle-related genes and hyperproliferation of hematopoietic precursor cells. Finally, treatment with c-myb target drug flavopiridol can relieve the MDS-like symptoms in both c-mybhyper embryos and adult fish. Our study establishes a zebrafish model for studying the cellular and molecular mechanisms underlying c-Myb-associated leukemogenesis as well as for anti-leukemic drug screening.
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40
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Gritz E, Hirschi KK. Specification and function of hemogenic endothelium during embryogenesis. Cell Mol Life Sci 2016; 73:1547-67. [PMID: 26849156 PMCID: PMC4805691 DOI: 10.1007/s00018-016-2134-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 12/16/2015] [Accepted: 01/07/2016] [Indexed: 01/15/2023]
Abstract
Hemogenic endothelium is a specialized subset of developing vascular endothelium that acquires hematopoietic potential and can give rise to multilineage hematopoietic stem and progenitor cells during a narrow developmental window in tissues such as the extraembryonic yolk sac and embryonic aorta-gonad-mesonephros. Herein, we review current knowledge about the historical and developmental origins of hemogenic endothelium, the molecular events that govern hemogenic specification of vascular endothelial cells, the generation of multilineage hematopoietic stem and progenitor cells from hemogenic endothelium, and the potential for translational applications of knowledge gained from further study of these processes.
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Affiliation(s)
- Emily Gritz
- Departments of Medicine, Genetics and Biomedical Engineering, Yale Cardiovascular Research Center, Vascular Biology and Therapeutics Program, and Yale Stem Cell Center, Yale University School of Medicine, 300 George St., New Haven, CT, 06511, USA
- Department of Pediatrics, Section of Neonatal-Perinatal Medicine, Yale University School of Medicine, 333 Cedar St., New Haven, CT, 06511, USA
| | - Karen K Hirschi
- Departments of Medicine, Genetics and Biomedical Engineering, Yale Cardiovascular Research Center, Vascular Biology and Therapeutics Program, and Yale Stem Cell Center, Yale University School of Medicine, 300 George St., New Haven, CT, 06511, USA.
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41
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Gore AV, Athans B, Iben JR, Johnson K, Russanova V, Castranova D, Pham VN, Butler MG, Williams-Simons L, Nichols JT, Bresciani E, Feldman B, Kimmel CB, Liu PP, Weinstein BM. Epigenetic regulation of hematopoiesis by DNA methylation. eLife 2016; 5:e11813. [PMID: 26814702 PMCID: PMC4744183 DOI: 10.7554/elife.11813] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 12/06/2015] [Indexed: 11/13/2022] Open
Abstract
During embryonic development, cell type-specific transcription factors promote cell identities, while epigenetic modifications are thought to contribute to maintain these cell fates. Our understanding of how genetic and epigenetic modes of regulation work together to establish and maintain cellular identity is still limited, however. Here, we show that DNA methyltransferase 3bb.1 (dnmt3bb.1) is essential for maintenance of hematopoietic stem and progenitor cell (HSPC) fate as part of an early Notch-runx1-cmyb HSPC specification pathway in the zebrafish. Dnmt3bb.1 is expressed in HSPC downstream from Notch1 and runx1, and loss of Dnmt3bb.1 activity leads to reduced cmyb locus methylation, reduced cmyb expression, and gradual reduction in HSPCs. Ectopic overexpression of dnmt3bb.1 in non-hematopoietic cells is sufficient to methylate the cmyb locus, promote cmyb expression, and promote hematopoietic development. Our results reveal an epigenetic mechanism supporting the maintenance of hematopoietic cell fate via DNA methylation-mediated perdurance of a key transcription factor in HSPCs. DOI:http://dx.doi.org/10.7554/eLife.11813.001 The cells in our blood are constantly being replaced with new cells that are produced by stem cells called hematopoietic stem and progenitor cells (or HSPCs for short). The HSPCs form early on in the development of the embryo and continue in the same role throughout the life of the animal. A gene called runx1 is required for HSPCs to form, but is not required for these cells to maintain their role (cell identity) in the long term. In mice, this gene is only expressed for a brief period of time as the HSPCs form, and is switched off in the mature stem cells. Another gene called cmyb – which is switched on by runx1 – is also required for HSPCs to form. However, unlike runx1, cmyb continues to be expressed in mature HSPCs and is required to maintain HSPC identity. It is not known how the temporary activation of runx1 causes the long-term expression of cmyb. One possible explanation is that the cmyb gene may be subject to a process called DNA methylation. This process is carried out by enzymes called DNA methyltransferases and can have long-term effects on the expression of genes by modifying the structure of the DNA that encodes them. Here, Gore et al. investigate the role of a particular DNA methyltransferase in the formation of HSPCs in zebrafish embryos. The experiments show that this enzyme is activated in developing HSPCs in response to an increase in runx1 expression. The loss of this enzyme’s activity reduces both the amount that cmyb is methylated and its level of expression, which results in a gradual decline in the number of HSPCs in zebrafish. Further experiments show that if the DNA methyltransferase is artificially activated in cells that don’t normally form blood cells, these cells change their identity to do so. This switch is accompanied by methylation of cmyb and an increase in its expression. Gore et al.’s findings reveal that the temporary activation of runx1 triggers the production of an enzyme that methylates cmyb to maintain the identity of HSPCs. Future studies should help to reveal exactly how runx1 promotes DNA methylation, and whether this process can be harnessed to promote HSPC formation for research or medical treatments. DOI:http://dx.doi.org/10.7554/eLife.11813.002
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Affiliation(s)
- Aniket V Gore
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Brett Athans
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - James R Iben
- Program in Developmental Endocrinology and Genetics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Kristin Johnson
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Valya Russanova
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Daniel Castranova
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Van N Pham
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Matthew G Butler
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Lisa Williams-Simons
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - James T Nichols
- Institute of Neuroscience, University of Oregon, Eugene, United States
| | - Erica Bresciani
- Oncogenesis and Development Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, United States
| | - Bejamin Feldman
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
| | - Charles B Kimmel
- Institute of Neuroscience, University of Oregon, Eugene, United States
| | - Paul P Liu
- Oncogenesis and Development Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, United States
| | - Brant M Weinstein
- Division of Developmental Biology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States
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42
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Xu J, Zhu L, He S, Wu Y, Jin W, Yu T, Qu JY, Wen Z. Temporal-Spatial Resolution Fate Mapping Reveals Distinct Origins for Embryonic and Adult Microglia in Zebrafish. Dev Cell 2016; 34:632-41. [PMID: 26418294 DOI: 10.1016/j.devcel.2015.08.018] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 07/05/2015] [Accepted: 08/26/2015] [Indexed: 12/24/2022]
Abstract
Microglia are CNS resident macrophages, and they play important roles in neural development and function. Recent studies have suggested that murine microglia arise from a single source, the yolk sac (YS), yet these studies lack spatial resolution to define the bona fide source(s) for microglia. Here, using light-induced high temporal-spatial resolution fate mapping, we challenge this single-source view by showing that microglia in zebrafish arise from multiple sources. The embryonic/larval microglia originate from the rostral blood island (RBI) region, the equivalent of mouse YS for myelopoiesis, whereas the adult microglia arise from the ventral wall of dorsal aorta (VDA) region, a tissue also producing definitive hematopoiesis in mouse. We further show that the VDA-region-derived microglia are Runx1 dependent, but cMyb independent, and developmentally regulated differently from the RBI region-derived microglia. Our study establishes a new paradigm for investigating the development and function of distinct microglia populations.
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Affiliation(s)
- Jin Xu
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC
| | - Lu Zhu
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC
| | - Sicong He
- Department of Electronic and Computer Engineering, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC
| | - Yi Wu
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC
| | - Wan Jin
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC
| | - Tao Yu
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC
| | - Jianan Y Qu
- Department of Electronic and Computer Engineering, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC.
| | - Zilong Wen
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC.
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43
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Sertori R, Liongue C, Basheer F, Lewis KL, Rasighaemi P, de Coninck D, Traver D, Ward AC. Conserved IL-2Rγc Signaling Mediates Lymphopoiesis in Zebrafish. THE JOURNAL OF IMMUNOLOGY 2015; 196:135-43. [PMID: 26590317 DOI: 10.4049/jimmunol.1403060] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 10/20/2015] [Indexed: 01/30/2023]
Abstract
The IL-2 receptor γ common (IL-2Rγc) chain is the shared subunit of the receptors for the IL-2 family of cytokines, which mediate signaling through JAK3 and various downstream pathways to regulate lymphopoiesis. Inactivating mutations in human IL-2Rγc result in SCID, a primary immunodeficiency characterized by greatly reduced numbers of lymphocytes. This study used bioinformatics, expression analysis, gene ablation, and specific pharmacologic inhibitors to investigate the function of two putative zebrafish IL-2Rγc paralogs, il-2rγc.a and il-2rγc.b, and downstream signaling components during early lymphopoiesis. Expression of il-2rγc.a commenced at 16 h post fertilization (hpf) and rose steadily from 4-6 d postfertilization (dpf) in the developing thymus, with il-2rγc.a expression also confirmed in adult T and B lymphocytes. Transcripts of il-2rγc.b were first observed from 8 hpf, but waned from 16 hpf before reaching maximal expression at 6 dpf, but this was not evident in the thymus. Knockdown of il-2rγc.a, but not il-2rγc.b, substantially reduced embryonic lymphopoiesis without affecting other aspects of hematopoiesis. Specific targeting of zebrafish Jak3 exerted a similar effect on lymphopoiesis, whereas ablation of zebrafish Stat5.1 and pharmacologic inhibition of PI3K and MEK also produced significant but smaller effects. Ablation of il-2rγc.a was further demonstrated to lead to an absence of mature T cells, but not B cells in juvenile fish. These results indicate that conserved IL-2Rγc signaling via JAK3 plays a key role during early zebrafish lymphopoiesis, which can be potentially targeted to generate a zebrafish model of human SCID.
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Affiliation(s)
- Robert Sertori
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; Centre for Molecular and Medical Research, Deakin University, Geelong, Victoria 3216, Australia
| | - Clifford Liongue
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; Centre for Molecular and Medical Research, Deakin University, Geelong, Victoria 3216, Australia
| | - Faiza Basheer
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; Centre for Molecular and Medical Research, Deakin University, Geelong, Victoria 3216, Australia
| | - Kanako L Lewis
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093; and
| | - Parisa Rasighaemi
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; Centre for Molecular and Medical Research, Deakin University, Geelong, Victoria 3216, Australia
| | - Dennis de Coninck
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht 6200, the Netherlands
| | - David Traver
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093; and
| | - Alister C Ward
- School of Medicine, Deakin University, Geelong, Victoria 3216, Australia; Centre for Molecular and Medical Research, Deakin University, Geelong, Victoria 3216, Australia;
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44
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Kaspar P, Zikova M, Bartunek P, Sterba J, Strnad H, Kren L, Sedlacek R. The Expression of c-Myb Correlates with the Levels of Rhabdomyosarcoma-specific Marker Myogenin. Sci Rep 2015; 5:15090. [PMID: 26462877 PMCID: PMC4604482 DOI: 10.1038/srep15090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 09/14/2015] [Indexed: 12/29/2022] Open
Abstract
The transcription factor c-Myb is required for modulation of progenitor cells in several tissues, including skeletal muscle and its upregulation is observed in many human malignancies. Rhabdomyosarcomas (RMS) are a heterogeneous group of mesodermal tumors with features of developing skeletal muscle. Several miRNAs are downregulated in RMS, including miR-150, a negative regulator of c-Myb expression. Using the C2C12 myoblast cell line, a cellular model of skeletal muscle differentiation, we showed that miR-150 controls c-Myb expression mainly at the level of translation. We hypothesized that a similar mechanism of c-Myb regulation operates in RMS tumors. We examined expression of c-Myb by immunohistochemistry and revealed c-Myb positivity in alveolar and embryonal tumors, the two most common subgroups of RMS. Furthermore, we showed direct correlation between c-Myb production and myogenin expression. Interestingly, high myogenin levels indicate poor prognosis in RMS patients. c-Myb could, therefore, contribute to the tumor phenotype by executing its inhibitory role in skeletal muscle differentiation. We also showed that c-Myb protein is abundant in migratory C2C12 myoblasts and its ectopic expression potentiates cell motility. In summary, our results implicate that metastatic properties of some RMS subtypes might be linked to c-Myb function.
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Affiliation(s)
- Petr Kaspar
- Laboratory of Transgenic Models of Diseases, Institute of Molecular Genetics of the ASCR, v.v.i., Prague, Czech Republic
| | - Martina Zikova
- Laboratory of Cell Differentiation, Institute of Molecular Genetics of the ASCR, v.v.i., Prague, Czech Republic
| | - Petr Bartunek
- Laboratory of Cell Differentiation, Institute of Molecular Genetics of the ASCR, v.v.i., Prague, Czech Republic
| | | | - Hynek Strnad
- Laboratory of Genomics and Bioinformatics, Institute of Molecular Genetics of the ASCR, v.v.i., Prague, Czech Republic
| | - Leos Kren
- The University Hospital Brno, Brno, Czech Republic
| | - Radislav Sedlacek
- Laboratory of Transgenic Models of Diseases, Institute of Molecular Genetics of the ASCR, v.v.i., Prague, Czech Republic
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Shi X, He BL, Ma ACH, Leung AYH. Fishing the targets of myeloid malignancies in the era of next generation sequencing. Blood Rev 2015; 30:119-30. [PMID: 26443083 DOI: 10.1016/j.blre.2015.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 08/15/2015] [Accepted: 09/04/2015] [Indexed: 11/29/2022]
Abstract
Recent advent in next generation sequencing (NGS) and bioinformatics has generated an unprecedented amount of genetic information in myeloidmalignancies. This information may shed lights to the pathogenesis, diagnosis and prognostication of these diseases and provide potential targets for therapeutic intervention. However, the rapid emergence of genetic information will quickly outpace their functional validation by conventional laboratory platforms. Foundational knowledge about zebrafish hematopoiesis accumulated over the past two decades and novel genomeediting technologies and research strategies in thismodel organismhavemade it a unique and timely research tool for the study of human blood diseases. Recent studies modeling human myeloid malignancies in zebrafish have also highlighted the technical feasibility and clinical relevance of thesemodels. Careful validation of experimental protocols and standardization among laboratorieswill further enhance the application of zebrafish in the scientific communities and provide important insights to the personalized treatment ofmyeloid malignancies.
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Affiliation(s)
- Xiangguo Shi
- Division of Haematology, Medical Oncology and Bone Marrow Transplantation, Department of Medicine, LKS Faculty Medicine, The University of Hong Kong.
| | - Bai-Liang He
- Division of Haematology, Medical Oncology and Bone Marrow Transplantation, Department of Medicine, LKS Faculty Medicine, The University of Hong Kong.
| | - Alvin C H Ma
- Division of Haematology, Medical Oncology and Bone Marrow Transplantation, Department of Medicine, LKS Faculty Medicine, The University of Hong Kong.
| | - Anskar Y H Leung
- Division of Haematology, Medical Oncology and Bone Marrow Transplantation, Department of Medicine, LKS Faculty Medicine, The University of Hong Kong.
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46
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Functions of idh1 and its mutation in the regulation of developmental hematopoiesis in zebrafish. Blood 2015; 125:2974-84. [DOI: 10.1182/blood-2014-09-601187] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 03/05/2015] [Indexed: 12/26/2022] Open
Abstract
Key Points
Zebrafish idh1 plays an important role in the regulation of myelopoiesis and definitive hematopoiesis. Expression of human IDH1-R132H and its zebrafish orthologue induced an increase in myelopoiesis and 2-hydroxyglutrate.
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47
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Butko E, Distel M, Pouget C, Weijts B, Kobayashi I, Ng K, Mosimann C, Poulain FE, McPherson A, Ni CW, Stachura DL, Del Cid N, Espín-Palazón R, Lawson ND, Dorsky R, Clements WK, Traver D. Gata2b is a restricted early regulator of hemogenic endothelium in the zebrafish embryo. Development 2015; 142:1050-61. [PMID: 25758220 PMCID: PMC4360177 DOI: 10.1242/dev.119180] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 01/29/2015] [Indexed: 12/13/2022]
Abstract
The adult blood system is established by hematopoietic stem cells (HSCs), which arise during development from an endothelial-to-hematopoietic transition of cells comprising the floor of the dorsal aorta. Expression of aortic runx1 has served as an early marker of HSC commitment in the zebrafish embryo, but recent studies have suggested that HSC specification begins during the convergence of posterior lateral plate mesoderm (PLM), well before aorta formation and runx1 transcription. Further understanding of the earliest stages of HSC specification necessitates an earlier marker of hemogenic endothelium. Studies in mice have suggested that GATA2 might function at early stages within hemogenic endothelium. Two orthologs of Gata2 exist in zebrafish: gata2a and gata2b. Here, we report that gata2b expression initiates during the convergence of PLM, becoming restricted to emerging HSCs. We observe Notch-dependent gata2b expression within the hemogenic subcompartment of the dorsal aorta that is in turn required to initiate runx1 expression. Our results indicate that Gata2b functions within hemogenic endothelium from an early stage, whereas Gata2a functions more broadly throughout the vascular system.
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Affiliation(s)
- Emerald Butko
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Martin Distel
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Claire Pouget
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Bart Weijts
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Isao Kobayashi
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Kevin Ng
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Christian Mosimann
- Institute of Molecular Life Sciences, University of Zürich, Zürich, Switzerland
| | - Fabienne E Poulain
- Department of Neurobiology and Anatomy, University of Utah, Salt Lake City, UT 84132, USA
| | - Adam McPherson
- Department of Neurobiology and Anatomy, University of Utah, Salt Lake City, UT 84132, USA
| | - Chih-Wen Ni
- University of Massachusetts at Worcester, Worcester, MA 01605, USA
| | - David L Stachura
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Natasha Del Cid
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Raquel Espín-Palazón
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Nathan D Lawson
- University of Massachusetts at Worcester, Worcester, MA 01605, USA
| | - Richard Dorsky
- Department of Neurobiology and Anatomy, University of Utah, Salt Lake City, UT 84132, USA
| | - Wilson K Clements
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA Department of Hematology, St Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - David Traver
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA Section of Cell and Developmental Biology, Division of Biological Sciences, University of California at San Diego, La Jolla, CA 92093, USA
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48
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Carroll KJ, North TE. Oceans of opportunity: exploring vertebrate hematopoiesis in zebrafish. Exp Hematol 2014; 42:684-96. [PMID: 24816275 PMCID: PMC4461861 DOI: 10.1016/j.exphem.2014.05.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 04/28/2014] [Accepted: 05/02/2014] [Indexed: 01/09/2023]
Abstract
Exploitation of the zebrafish model in hematology research has surged in recent years, becoming one of the most useful and tractable systems for understanding regulation of hematopoietic development, homeostasis, and malignancy. Despite the evolutionary distance between zebrafish and humans, remarkable genetic and phenotypic conservation in the hematopoietic system has enabled significant advancements in our understanding of blood stem and progenitor cell biology. The strengths of zebrafish in hematology research lie in the ability to perform real-time in vivo observations of hematopoietic stem, progenitor, and effector cell emergence, expansion, and function, as well as the ease with which novel genetic and chemical modifiers of specific hematopoietic processes or cell types can be identified and characterized. Further, myriad transgenic lines have been developed including fluorescent reporter systems to aid in the visualization and quantification of specified cell types of interest and cell-lineage relationships, as well as effector lines that can be used to implement a wide range of experimental manipulations. As our understanding of the complex nature of blood stem and progenitor cell biology during development, in response to infection or injury, or in the setting of hematologic malignancy continues to deepen, zebrafish will remain essential for exploring the spatiotemporal organization and integration of these fundamental processes, as well as the identification of efficacious small molecule modifiers of hematopoietic activity. In this review, we discuss the biology of the zebrafish hematopoietic system, including similarities and differences from mammals, and highlight important tools currently utilized in zebrafish embryos and adults to enhance our understanding of vertebrate hematology, with emphasis on findings that have impacted our understanding of the onset or treatment of human hematologic disorders and disease.
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Affiliation(s)
- Kelli J Carroll
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Trista E North
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Harvard Stem Cell Institute, Cambridge, MA, USA.
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49
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CBFβ and RUNX1 are required at 2 different steps during the development of hematopoietic stem cells in zebrafish. Blood 2014; 124:70-8. [PMID: 24850758 DOI: 10.1182/blood-2013-10-531988] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
CBFβ and RUNX1 form a DNA-binding heterodimer and are both required for hematopoietic stem cell (HSC) generation in mice. However, the exact role of CBFβ in the production of HSCs remains unclear. Here, we generated and characterized 2 zebrafish cbfb null mutants. The cbfb(-/-) embryos underwent primitive hematopoiesis and developed transient erythromyeloid progenitors, but they lacked definitive hematopoiesis. Unlike runx1 mutants, in which HSCs are not formed, nascent, runx1(+)/c-myb(+) HSCs were formed in cbfb(-/-) embryos. However, the nascent HSCs were not released from the aorta-gonad-mesonephros (AGM) region, as evidenced by the accumulation of runx1(+) cells in the AGM that could not enter circulation. Moreover, wild-type embryos treated with an inhibitor of RUNX1-CBFβ interaction, Ro5-3335, phenocopied the hematopoietic defects in cbfb(-/-) mutants, rather than those in runx1(-/-) mutants. Finally, we found that cbfb was downstream of the Notch pathway during HSC development. Our data suggest that runx1 and cbfb are required at 2 different steps during early HSC development. CBFβ is not required for nascent HSC emergence but is required for the release of HSCs from AGM into circulation. Our results also indicate that RUNX1 can drive the emergence of nascent HSCs in the AGM without its heterodimeric partner CBFβ.
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50
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Yan B, Han P, Pan L, Lu W, Xiong J, Zhang M, Zhang W, Li L, Wen Z. Il-1β and Reactive Oxygen Species Differentially Regulate Neutrophil Directional Migration and Basal Random Motility in a Zebrafish Injury–Induced Inflammation Model. THE JOURNAL OF IMMUNOLOGY 2014; 192:5998-6008. [DOI: 10.4049/jimmunol.1301645] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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