1
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Zhao C, Yang Z, Li Y, Wen Z. Macrophages in tissue repair and regeneration: insights from zebrafish. CELL REGENERATION (LONDON, ENGLAND) 2024; 13:12. [PMID: 38861103 PMCID: PMC11166613 DOI: 10.1186/s13619-024-00195-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/31/2024] [Indexed: 06/12/2024]
Abstract
Macrophages play crucial and versatile roles in regulating tissue repair and regeneration upon injury. However, due to their complex compositional heterogeneity and functional plasticity, deciphering the nature of different macrophage subpopulations and unraveling their dynamics and precise roles during the repair process have been challenging. With its distinct advantages, zebrafish (Danio rerio) has emerged as an invaluable model for studying macrophage development and functions, especially in tissue repair and regeneration, providing valuable insights into our understanding of macrophage biology in health and diseases. In this review, we present the current knowledge and challenges associated with the role of macrophages in tissue repair and regeneration, highlighting the significant contributions made by zebrafish studies. We discuss the unique advantages of the zebrafish model, including its genetic tools, imaging techniques, and regenerative capacities, which have greatly facilitated the investigation of macrophages in these processes. Additionally, we outline the potential of zebrafish research in addressing the remaining challenges and advancing our understanding of the intricate interplay between macrophages and tissue repair and regeneration.
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Affiliation(s)
- Changlong Zhao
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhiyong Yang
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, China
- Division of Life Science, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Yunbo Li
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, China
- Division of Life Science, the Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Zilong Wen
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, China.
- Shenzhen Bay Laboratory, Shenzhen, 518055, China.
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2
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Rovira M, Pozo J, Miserocchi M, Wittamer V. Isolation of Tissue Macrophages in Adult Zebrafish. Methods Mol Biol 2024; 2713:81-98. [PMID: 37639116 DOI: 10.1007/978-1-0716-3437-0_5] [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] [Indexed: 08/29/2023]
Abstract
Tissue macrophages are essential components of the immune system that also play key roles in vertebrate development and homeostasis, including in zebrafish, which has gained popularity over the years as a translational model for human disease. Commonly, zebrafish macrophages are identified based on expression of fluorescent transgenic reporters, allowing for real-time imaging in living animals. Several of these lines have also proven instrumental to isolate pure populations of macrophages in the developing embryo and larvae using fluorescence-activated cell sorting (FACS). However, the identification of tissue macrophages in adult fish is not as clear, and robust protocols are needed that would take into account changes in reporter specificity as well as the heterogeneity of mononuclear phagocytes as fish reach adulthood. In this chapter, we describe the methodology for analyzing macrophages in various tissues in the adult zebrafish by flow cytometry. Coupled with FACS, these protocols further allow for the prospective isolation of enriched populations of tissue-specific mononuclear phagocytes that can be used in downstream transcriptomic and/or epigenomic analyses. Overall, we aim at providing a guide for the zebrafish community based on our expertise investigating the adult mononuclear phagocyte system.
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Affiliation(s)
- Mireia Rovira
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM), Brussels, Belgium
- ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Jennifer Pozo
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM), Brussels, Belgium
- ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Magali Miserocchi
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM), Brussels, Belgium
- ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Valérie Wittamer
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM), Brussels, Belgium.
- ULB Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium.
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3
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Wang Y, Ren L, Ren Y, Chai M, Ning X, Li G, Sang N. New insights into triazole fungicide-caused hematopoietic abnormality in zebrafish based on GRα screening developmental toxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 334:122182. [PMID: 37442323 DOI: 10.1016/j.envpol.2023.122182] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/08/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
Triazole fungicides (TFs) are known to be common environmental contaminants that can be toxic to aquatic animals, but their developmental toxicity is not fully understood. To address this gap, we first used a glucocorticoid receptor α (GRα)-mediated dual luciferase reporter gene system to explore the possible development toxicity of ten TFs and found that flusilazole (FLU) exhibited stronger agonistic activity against GRα. Subsequent transcriptome sequencing showed that FLU exposure affected GRα activation and hematopoiesis associated with a variety of biological processes, including responses to corticosteroid release, embryonic hematopoiesis, erythroid differentiation, and the development of hematopoietic or lymphoid organs. Furthermore, based on in situ hybridization and staining techniques, we clarified that FLU decreased the expression of the primitive hematopoietic marker genes gata1 and pu.1. and caused the defects in the posterior blood island (PBI), thereby impacting intermediate hematopoietic processes. Also, FLU significantly reduced the expression of the crucial hematopoietic gene cmyb and disrupted the production of erythrocytes and bone marrow cells during definitive hematopoiesis. Consistently, we found that FLU induced lesions in the kidney, a hematopoietic organ, including the infiltration of inflammatory cells, tubular collapse, reduced tubular filtration area, and interstitial hydronephrosis. We also found that FLU increased aberrant red blood cells in the peripheral blood of zebrafish. These findings provide new insights into the developmental toxicity and ecotoxicological risk of TFs.
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Affiliation(s)
- Yue Wang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Lingyu Ren
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Ying Ren
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Mengdan Chai
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Xia Ning
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Guangke Li
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi, 030006, PR China.
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi, 030006, PR China
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4
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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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5
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Vink CS, Dzierzak E. The (intra-aortic) hematopoietic cluster cocktail: what is in the mix? Exp Hematol 2023; 118:1-11. [PMID: 36529317 DOI: 10.1016/j.exphem.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
The adult-definitive hematopoietic hierarchy and hematopoietic stem cells (HSCs) residing in the bone marrow are established during embryonic development. In mouse, human, and many other mammals, it is the sudden formation of so-called intra-aortic/arterial hematopoietic clusters (IAHCs) that best signifies and visualizes this de novo generation of HSCs and hematopoietic progenitor cells (HPCs). Cluster cells arise through an endothelial-to-hematopoietic transition and, for some time, express markers/genes of both tissue types, whilst acquiring more hematopoietic features and losing endothelial ones. Among several hundreds of IAHC cells, the midgestation mouse embryo contains only very few bona fide adult-repopulating HSCs, suggestive of a challenging cell fate to achieve. Most others are HPCs of various types, some of which have the potential to mature into HSCs in vitro. Based on the number of cells that reveal hematopoietic function, a fraction of IAHC cells is uncharacterized. This review aims to explore the current state of knowledge on IAHC cells. We will describe markers useful for isolation and characterization of these fleetingly produced, yet vitally important, cells and for the refined enrichment of the HSCs they contain, and speculate on the role of some IAHC cells that are as-yet functionally uncharacterized.
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Affiliation(s)
- Chris S Vink
- The University of Edinburgh, Centre for Inflammation Research, Edinburgh, Midlothian, Scotland, UK
| | - Elaine Dzierzak
- The University of Edinburgh, Centre for Inflammation Research, Edinburgh, Midlothian, Scotland, UK.
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6
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Casey MJ, Call AM, Thorpe AV, Jette CA, Engel ME, Stewart RA. The scaffolding function of LSD1/KDM1A reinforces a negative feedback loop to repress stem cell gene expression during primitive hematopoiesis. iScience 2022; 26:105737. [PMID: 36594016 PMCID: PMC9803847 DOI: 10.1016/j.isci.2022.105737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 09/15/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Lsd1/Kdm1a functions both as a histone demethylase enzyme and as a scaffold for assembling chromatin modifier and transcription factor complexes to regulate gene expression. The relative contributions of Lsd1's demethylase and scaffolding functions during embryogenesis are not known. Here, we analyze two independent zebrafish lsd1/kdm1a mutant lines and show Lsd1 is required to repress primitive hematopoietic stem cell gene expression. Lsd1 rescue constructs containing point mutations that selectively abrogate its demethylase or scaffolding capacity demonstrate the scaffolding function of Lsd1, not its demethylase activity, is required for repression of gene expression in vivo. Lsd1's SNAG-binding domain mediates its scaffolding function and reinforces a negative feedback loop to repress the expression of SNAG-domain-containing genes during embryogenesis, including gfi1 and snai1/2. Our findings reveal a model in which the SNAG-binding and scaffolding function of Lsd1, and its associated negative feedback loop, provide transient and reversible regulation of gene expression during hematopoietic development.
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Affiliation(s)
- Mattie J. Casey
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope Drive, Salt Lake City, UT 84112, USA
| | - Alexandra M. Call
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope Drive, Salt Lake City, UT 84112, USA
| | - Annika V. Thorpe
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope Drive, Salt Lake City, UT 84112, USA
| | - Cicely A. Jette
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope Drive, Salt Lake City, UT 84112, USA
| | - Michael E. Engel
- Department of Pediatric Hematology/Oncology, Emily Couric Cancer Center, University of Virginia, Charlottesville, VA 22903, USA,Corresponding author
| | - Rodney A. Stewart
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope Drive, Salt Lake City, UT 84112, USA,Corresponding author
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7
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Namit A, Dowell W, Matiasek S, Webster J, Stachura DL. Pentachlorophenol has significant adverse effects on hematopoietic and immune system development in zebrafish (Danio rerio). PLoS One 2022; 17:e0265618. [PMID: 35333877 PMCID: PMC8956169 DOI: 10.1371/journal.pone.0265618] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 03/04/2022] [Indexed: 11/18/2022] Open
Abstract
In November 2018, the Camp Fire devastated the mountain community of Paradise, CA. The burning of plastic pipes, wiring, construction materials, paint, and car batteries released toxic chemicals into the environment, contaminating the air, soil, and local waterways. Examples of toxins that were identified in the creeks and waterways in and around Paradise included pentachlorophenol (PCP), chrysene, and polyaromatic hydrocarbons. The effects of some of these chemicals on embryonic development, hematopoiesis (blood formation), and the immune system have not been thoroughly studied. Defining safe levels and the long-term effects of exposure is imperative to understanding and mitigating potential negative future outcomes. To perform these studies, we utilized zebrafish (Danio rerio), a commonly used vertebrate model system to study development. We observed the adverse effects of PCP on the development of zebrafish by using fluorescence microscopy, and saw that increased concentrations of PCP decreased the numbers of normal red blood cells and myeloid cells. Additionally, we observed that animal survival decreased in response to increasing concentrations of PCP. Furthermore, the prevalence of characteristic physical deformities such as tail curvature were greater in the treatment groups. Lastly, runx1, cmyb, and cd41 expression was reduced in fish treated with PCP. These results suggest that PCP has a previously underappreciated effect on blood and immune cell development and future studies should be performed to determine the molecular mechanisms involved.
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Affiliation(s)
- Aleeza Namit
- Department of Biological Sciences, California State University Chico, Chico, CA, United States of America
| | - William Dowell
- Department of Biological Sciences, California State University Chico, Chico, CA, United States of America
| | - Sandrine Matiasek
- Department of Geological and Environmental Sciences, California State University Chico, Chico, CA, United States of America
| | - Jackson Webster
- Department of Civil Engineering, California State University Chico, Chico, CA, United States of America
| | - David L. Stachura
- Department of Biological Sciences, California State University Chico, Chico, CA, United States of America
- * E-mail:
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8
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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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9
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Phelps DW, Fletcher AA, Rodriguez-Nunez I, Balik-Meisner MR, Tokarz DA, Reif DM, Germolec DR, Yoder JA. In vivo assessment of respiratory burst inhibition by xenobiotic exposure using larval zebrafish. J Immunotoxicol 2021; 17:94-104. [PMID: 32407153 DOI: 10.1080/1547691x.2020.1748772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Currently, assessment of the potential immunotoxicity of a given agent involves a tiered approach for hazard identification and mechanistic studies, including observational studies, evaluation of immune function, and measurement of susceptibility to infectious and neoplastic diseases. These studies generally use costly low-throughput mammalian models. Zebrafish, however, offer an excellent alternative due to their rapid development, ease of maintenance, and homology to mammalian immune system function and development. Larval zebrafish also are a convenient model to study the innate immune system with no interference from the adaptive immune system. In this study, a respiratory burst assay (RBA) was utilized to measure reactive oxygen species (ROS) production after developmental xenobiotic exposure. Embryos were exposed to non-teratogenic doses of chemicals and at 96 h post-fertilization, the ability to produce ROS was measured. Using the RBA, 12 compounds with varying immune-suppressive properties were screened. Seven compounds neither suppressed nor enhanced the respiratory burst; five reproducibly suppressed global ROS production, but with varying potencies: benzo[a]pyrene, 17β-estradiol, lead acetate, methoxychlor, and phenanthrene. These five compounds have all previously been reported as immunosuppressive in mammalian innate immunity assays. To evaluate whether the suppression of ROS by these compounds was a result of decreased immune cell numbers, flow cytometry with transgenic zebrafish larvae was used to count the numbers of neutrophils and macrophages after chemical exposure. With this assay, benzo[a]pyrene was found to be the only chemical that induced a change in the number of immune cells by increasing macrophage but not neutrophil numbers. Taken together, this work demonstrates the utility of zebrafish larvae as a vertebrate model for identifying compounds that impact innate immune function at non-teratogenic levels and validates measuring ROS production and phagocyte numbers as metrics for monitoring how xenobiotic exposure alters the innate immune system.
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Affiliation(s)
- Drake W Phelps
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
| | - Ashley A Fletcher
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Ivan Rodriguez-Nunez
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | | | - Debra A Tokarz
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.,Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, USA
| | - David M Reif
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA.,Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, USA.,Bioinformatics Research Center, North Carolina State University, Raleigh, NC, USA
| | - Dori R Germolec
- National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jeffrey A Yoder
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA.,Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, USA
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10
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Belmonte RL, Engbretson IL, Kim JH, Cajias I, Ahn EYE, Stachura DL. son is necessary for proper vertebrate blood development. PLoS One 2021; 16:e0247489. [PMID: 33630943 PMCID: PMC7906411 DOI: 10.1371/journal.pone.0247489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 02/08/2021] [Indexed: 12/15/2022] Open
Abstract
The gene SON is on human chromosome 21 (21q22.11) and is thought to be associated with hematopoietic disorders that accompany Down syndrome. Additionally, SON is an RNA splicing factor that plays a role in the transcription of leukemia-associated genes. Previously, we showed that mutations in SON cause malformations in human and zebrafish spines and brains during early embryonic development. To examine the role of SON in normal hematopoiesis, we reduced expression of the zebrafish homolog of SON in zebrafish at the single-cell developmental stage with specific morpholinos. In addition to the brain and spinal malformations we also observed abnormal blood cell levels upon son knockdown. We then investigated how blood production was altered when levels of son were reduced. Decreased levels of son resulted in lower amounts of red blood cells when visualized with lcr:GFP transgenic fish. There were also reduced thrombocytes seen with cd41:GFP fish, and myeloid cells when mpx:GFP fish were examined. We also observed a significant decrease in the quantity of T cells, visualized with lck:GFP fish. However, when we examined their hematopoietic stem and progenitor cells (HSPCs), we saw no difference in colony-forming capability. These studies indicate that son is essential for the proper differentiation of the innate and adaptive immune system, and further investigation determining the molecular pathways involved during blood development should elucidate important information about vertebrate HSPC generation, proliferation, and differentiation.
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Affiliation(s)
- Rebecca L. Belmonte
- Department of Biological Sciences, California State University Chico, Chico, California, United States of America
| | - Isabella L. Engbretson
- Department of Biological Sciences, California State University Chico, Chico, California, United States of America
| | - Jung-Hyun Kim
- Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, United States of America
| | - Illiana Cajias
- Department of Biological Sciences, California State University Chico, Chico, California, United States of America
| | - Eun-Young Erin Ahn
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - David L. Stachura
- Department of Biological Sciences, California State University Chico, Chico, California, United States of America
- * E-mail:
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11
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Elsaid R, Soares-da-Silva F, Peixoto M, Amiri D, Mackowski N, Pereira P, Bandeira A, Cumano A. Hematopoiesis: A Layered Organization Across Chordate Species. Front Cell Dev Biol 2020; 8:606642. [PMID: 33392196 PMCID: PMC7772317 DOI: 10.3389/fcell.2020.606642] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/19/2020] [Indexed: 12/12/2022] Open
Abstract
The identification of distinct waves of progenitors during development, each corresponding to a specific time, space, and function, provided the basis for the concept of a "layered" organization in development. The concept of a layered hematopoiesis was established by classical embryology studies in birds and amphibians. Recent progress in generating reliable lineage tracing models together with transcriptional and proteomic analyses in single cells revealed that, also in mammals, the hematopoietic system evolves in successive waves of progenitors with distinct properties and fate. During embryogenesis, sequential waves of hematopoietic progenitors emerge at different anatomic sites, generating specific cell types with distinct functions and tissue homing capacities. The first progenitors originate in the yolk sac before the emergence of hematopoietic stem cells, some giving rise to progenies that persist throughout life. Hematopoietic stem cell-derived cells that protect organisms against environmental pathogens follow the same sequential strategy, with subsets of lymphoid cells being only produced during embryonic development. Growing evidence indicates that fetal immune cells contribute to the proper development of the organs they seed and later ensure life-long tissue homeostasis and immune protection. They include macrophages, mast cells, some γδ T cells, B-1 B cells, and innate lymphoid cells, which have "non-redundant" functions, and early perturbations in their development or function affect immunity in the adult. These observations challenged the view that all hematopoietic cells found in the adult result from constant and monotonous production from bone marrow-resident hematopoietic stem cells. In this review, we evaluate evidence for a layered hematopoietic system across species. We discuss mechanisms and selective pressures leading to the temporal generation of different cell types. We elaborate on the consequences of disturbing fetal immune cells on tissue homeostasis and immune development later in life.
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Affiliation(s)
- Ramy Elsaid
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
| | - Francisca Soares-da-Silva
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
- I3S—Instituto de Investigação e Inovação em Saúde and INEB—Instituto Nacional de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
- Graduate Program in Areas of Basic and Applied Biology, Instituto de Ciências Biomeìdicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Marcia Peixoto
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
- I3S—Instituto de Investigação e Inovação em Saúde and INEB—Instituto Nacional de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Dali Amiri
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
| | - Nathan Mackowski
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
| | - Pablo Pereira
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
| | - Antonio Bandeira
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
| | - Ana Cumano
- Unit of Lymphocytes and Immunity, Immunology Department, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Université de Paris, Céllule Pasteur, Paris, France
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12
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Holowiecki A, Linstrum K, Ravisankar P, Chetal K, Salomonis N, Waxman JS. Pbx4 limits heart size and fosters arch artery formation by partitioning second heart field progenitors and restricting proliferation. Development 2020; 147:dev185652. [PMID: 32094112 PMCID: PMC7063670 DOI: 10.1242/dev.185652] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/06/2020] [Indexed: 12/11/2022]
Abstract
Vertebrate heart development requires the integration of temporally distinct differentiating progenitors. However, few signals are understood that restrict the size of the later-differentiating outflow tract (OFT). We show that improper specification and proliferation of second heart field (SHF) progenitors in zebrafish lazarus (lzr) mutants, which lack the transcription factor Pbx4, produces enlarged hearts owing to an increase in ventricular and smooth muscle cells. Specifically, Pbx4 initially promotes the partitioning of the SHF into anterior progenitors, which contribute to the OFT, and adjacent endothelial cell progenitors, which contribute to posterior pharyngeal arches. Subsequently, Pbx4 limits SHF progenitor (SHFP) proliferation. Single cell RNA sequencing of nkx2.5+ cells revealed previously unappreciated distinct differentiation states and progenitor subpopulations that normally reside within the SHF and arterial pole of the heart. Specifically, the transcriptional profiles of Pbx4-deficient nkx2.5+ SHFPs are less distinct and display characteristics of normally discrete proliferative progenitor and anterior, differentiated cardiomyocyte populations. Therefore, our data indicate that the generation of proper OFT size and arch arteries requires Pbx-dependent stratification of unique differentiation states to facilitate both homeotic-like transformations and limit progenitor production within the SHF.
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Affiliation(s)
- Andrew Holowiecki
- Molecular Cardiovascular Biology Division and Heart Institute, Cincinnati Children's Research Foundation, Cincinnati, OH 45229, USA
| | - Kelsey Linstrum
- Molecular Cardiovascular Biology Division and Heart Institute, Cincinnati Children's Research Foundation, Cincinnati, OH 45229, USA
- Molecular Genetics Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Padmapriyadarshini Ravisankar
- Molecular Cardiovascular Biology Division and Heart Institute, Cincinnati Children's Research Foundation, Cincinnati, OH 45229, USA
| | - Kashish Chetal
- Bioinformatics Division, Cincinnati Children's Research Foundation, Cincinnati, OH 45229, USA
| | - Nathan Salomonis
- Bioinformatics Division, Cincinnati Children's Research Foundation, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Joshua S Waxman
- Molecular Cardiovascular Biology Division and Heart Institute, Cincinnati Children's Research Foundation, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
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13
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Dobrzycki T, Mahony CB, Krecsmarik M, Koyunlar C, Rispoli R, Peulen-Zink J, Gussinklo K, Fedlaoui B, de Pater E, Patient R, Monteiro R. Deletion of a conserved Gata2 enhancer impairs haemogenic endothelium programming and adult Zebrafish haematopoiesis. Commun Biol 2020; 3:71. [PMID: 32054973 PMCID: PMC7018942 DOI: 10.1038/s42003-020-0798-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 01/28/2020] [Indexed: 12/13/2022] Open
Abstract
Gata2 is a key transcription factor required to generate Haematopoietic Stem and Progenitor Cells (HSPCs) from haemogenic endothelium (HE); misexpression of Gata2 leads to haematopoietic disorders. Here we deleted a conserved enhancer (i4 enhancer) driving pan-endothelial expression of the zebrafish gata2a and showed that Gata2a is required for HE programming by regulating expression of runx1 and of the second Gata2 orthologue, gata2b. By 5 days, homozygous gata2aΔi4/Δi4 larvae showed normal numbers of HSPCs, a recovery mediated by Notch signalling driving gata2b and runx1 expression in HE. However, gata2aΔi4/Δi4 adults showed oedema, susceptibility to infections and marrow hypo-cellularity, consistent with bone marrow failure found in GATA2 deficiency syndromes. Thus, gata2a expression driven by the i4 enhancer is required for correct HE programming in embryos and maintenance of steady-state haematopoietic stem cell output in the adult. These enhancer mutants will be useful in exploring further the pathophysiology of GATA2-related deficiencies in vivo.
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Affiliation(s)
- Tomasz Dobrzycki
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Christopher B Mahony
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
| | - Monika Krecsmarik
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
- BHF Centre of Research Excellence, Oxford, UK
| | - Cansu Koyunlar
- Department of Hematology, Erasmus MC, Rotterdam, The Netherlands
| | - Rossella Rispoli
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
- Division of Genetics and Molecular Medicine, NIHR Biomedical Research Centre, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Joke Peulen-Zink
- Department of Hematology, Erasmus MC, Rotterdam, The Netherlands
| | | | - Bakhta Fedlaoui
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
| | - Emma de Pater
- Department of Hematology, Erasmus MC, Rotterdam, The Netherlands
| | - Roger Patient
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
- BHF Centre of Research Excellence, Oxford, UK
| | - Rui Monteiro
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK.
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
- BHF Centre of Research Excellence, Oxford, UK.
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14
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Nikinmaa M. Environmental regulation of the function of circulating erythrocytes via changes in age distribution in teleost fish: Possible mechanisms and significance. Mar Genomics 2020; 49:100717. [DOI: 10.1016/j.margen.2019.100717] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/19/2019] [Accepted: 09/17/2019] [Indexed: 11/15/2022]
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15
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He S, Tian Y, Feng S, Wu Y, Shen X, Chen K, He Y, Sun Q, Li X, Xu J, Wen Z, Qu JY. In vivo single-cell lineage tracing in zebrafish using high-resolution infrared laser-mediated gene induction microscopy. eLife 2020; 9:e52024. [PMID: 31904340 PMCID: PMC7018510 DOI: 10.7554/elife.52024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 01/04/2020] [Indexed: 12/15/2022] Open
Abstract
Heterogeneity broadly exists in various cell types both during development and at homeostasis. Investigating heterogeneity is crucial for comprehensively understanding the complexity of ontogeny, dynamics, and function of specific cell types. Traditional bulk-labeling techniques are incompetent to dissect heterogeneity within cell population, while the new single-cell lineage tracing methodologies invented in the last decade can hardly achieve high-fidelity single-cell labeling and long-term in-vivo observation simultaneously. In this work, we developed a high-precision infrared laser-evoked gene operator heat-shock system, which uses laser-induced CreERT2 combined with loxP-DsRedx-loxP-GFP reporter to achieve precise single-cell labeling and tracing. In vivo study indicated that this system can precisely label single cell in brain, muscle and hematopoietic system in zebrafish embryo. Using this system, we traced the hematopoietic potential of hemogenic endothelium (HE) in the posterior blood island (PBI) of zebrafish embryo and found that HEs in the PBI are heterogeneous, which contains at least myeloid unipotent and myeloid-lymphoid bipotent subtypes.
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Affiliation(s)
- Sicong He
- Department of Electronic and Computer EngineeringThe Hong Kong University of Science and TechnologyKowloonChina
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
| | - Ye Tian
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
- Division of Life ScienceThe Hong Kong University of Science and TechnologyKowloonChina
| | - Shachuan Feng
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
- Division of Life ScienceThe Hong Kong University of Science and TechnologyKowloonChina
| | - Yi Wu
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
- Division of Life ScienceThe Hong Kong University of Science and TechnologyKowloonChina
| | - Xinwei Shen
- Department of MathematicsThe Hong Kong University of Science and TechnologyKowloonChina
| | - Kani Chen
- Department of MathematicsThe Hong Kong University of Science and TechnologyKowloonChina
| | - Yingzhu He
- Department of Electronic and Computer EngineeringThe Hong Kong University of Science and TechnologyKowloonChina
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
| | - Qiqi Sun
- Department of Electronic and Computer EngineeringThe Hong Kong University of Science and TechnologyKowloonChina
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
| | - Xuesong Li
- Department of Electronic and Computer EngineeringThe Hong Kong University of Science and TechnologyKowloonChina
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
| | - Jin Xu
- Division of Cell, Developmental and Integrative Biology, School of MedicineSouth China University of TechnologyGuangzhouChina
| | - Zilong Wen
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
- Division of Life ScienceThe Hong Kong University of Science and TechnologyKowloonChina
| | - Jianan Y Qu
- Department of Electronic and Computer EngineeringThe Hong Kong University of Science and TechnologyKowloonChina
- State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science and TechnologyKowloonChina
- Center of Systems Biology and Human HealthThe Hong Kong University of Science and TechnologyKowloonChina
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16
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Jiménez-Merino J, Santos de Abreu I, Hiebert LS, Allodi S, Tiozzo S, De Barros CM, Brown FD. Putative stem cells in the hemolymph and in the intestinal submucosa of the solitary ascidian Styela plicata. EvoDevo 2019; 10:31. [PMID: 31788180 PMCID: PMC6876114 DOI: 10.1186/s13227-019-0144-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 11/02/2019] [Indexed: 12/28/2022] Open
Abstract
Background In various ascidian species, circulating stem cells have been documented to be involved in asexual reproduction and whole-body regeneration. Studies of these cell population(s) are mainly restricted to colonial species. Here, we investigate the occurrence of circulating stem cells in the solitary Styela plicata, a member of the Styelidae, a family with at least two independent origins of coloniality. Results Using flow cytometry, we characterized a population of circulating putative stem cells (CPSCs) in S. plicata and determined two gates likely enriched with CPSCs based on morphology and aldehyde dehydrogenase (ALDH) activity. We found an ALDH + cell population with low granularity, suggesting a stem-like state. In an attempt to uncover putative CPSCs niches in S. plicata, we performed a histological survey for hemoblast-like cells, followed by immunohistochemistry with stem cell and proliferation markers. The intestinal submucosa (IS) showed high cellular proliferation levels and high frequency of undifferentiated cells and histological and ultrastructural analyses revealed the presence of hemoblast aggregations in the IS suggesting a possible niche. Finally, we document the first ontogenetic appearance of distinct metamorphic circulatory mesenchyme cells, which precedes the emergence of juvenile hemocytes. Conclusions We find CPSCs in the hemolymph of the solitary ascidian Styela plicata, presumably involved in the regenerative capacity of this species. The presence of proliferating and undifferentiated mesenchymal cells suggests IS as a possible niche.
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Affiliation(s)
- Juan Jiménez-Merino
- 1Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, Trav. 14, São Paulo, SP 101 05508-090 Brazil.,2Centro de Biologia Marinha (CEBIMar), Universidade de São Paulo, São Paulo, Brazil
| | - Isadora Santos de Abreu
- 3Laboratório de Neurobiologia Comparativa e do Desenvolvimento, Pós-Graduação em Ciências Biológicas-Fisiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ Brazil.,4Pós-Graduação em Ciências Morfológicas, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ Brazil
| | - Laurel S Hiebert
- 1Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, Trav. 14, São Paulo, SP 101 05508-090 Brazil.,2Centro de Biologia Marinha (CEBIMar), Universidade de São Paulo, São Paulo, Brazil
| | - Silvana Allodi
- 3Laboratório de Neurobiologia Comparativa e do Desenvolvimento, Pós-Graduação em Ciências Biológicas-Fisiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ Brazil.,4Pós-Graduação em Ciências Morfológicas, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ Brazil
| | - Stefano Tiozzo
- 5CNRS, Laboratoire de Biologie du Développement de Villefranche-sur-mer (LBDV), Sorbonne Universités, 06230 Paris, France
| | - Cintia M De Barros
- 6Laboratório Integrado de Morfologia, Núcleo em Ecologia e Desenvolvimento Sócio Ambiental de Macaé, NUPEM, Universidade Federal do Rio de Janeiro, UFRJ, Macae, RJ Brazil
| | - Federico D Brown
- 1Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, Trav. 14, São Paulo, SP 101 05508-090 Brazil.,2Centro de Biologia Marinha (CEBIMar), Universidade de São Paulo, São Paulo, Brazil.,Instituto Nacional de Ciência e Tecnologia em Estudos Interdisciplinares e Transdisciplinares em Ecologia e Evolução (IN-TREE), Salvador, BA Brazil
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17
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Zhu Y, Crowley SC, Latimer AJ, Lewis GM, Nash R, Kucenas S. Migratory Neural Crest Cells Phagocytose Dead Cells in the Developing Nervous System. Cell 2019; 179:74-89.e10. [PMID: 31495570 DOI: 10.1016/j.cell.2019.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 07/16/2019] [Accepted: 08/01/2019] [Indexed: 12/20/2022]
Abstract
During neural tube closure and spinal cord development, many cells die in both the central and peripheral nervous systems (CNS and PNS, respectively). However, myeloid-derived professional phagocytes have not yet colonized the trunk region during early neurogenesis. How apoptotic cells are removed from this region during these stages remains largely unknown. Using live imaging in zebrafish, we demonstrate that neural crest cells (NCCs) respond rapidly to dying cells and phagocytose cellular debris around the neural tube. Additionally, NCCs have the ability to enter the CNS through motor exit point transition zones and clear debris in the spinal cord. Surprisingly, NCCs phagocytosis mechanistically resembles macrophage phagocytosis and their recruitment toward cellular debris is mediated by interleukin-1β. Taken together, our results reveal a role for NCCs in phagocytosis of debris in the developing nervous system before the presence of professional phagocytes.
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Affiliation(s)
- Yunlu Zhu
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Samantha C Crowley
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Andrew J Latimer
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Gwendolyn M Lewis
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Rebecca Nash
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Sarah Kucenas
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA.
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18
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Chi Y, Huang Z, Chen Q, Xiong X, Chen K, Xu J, Zhang Y, Zhang W. Loss of runx1 function results in B cell immunodeficiency but not T cell in adult zebrafish. Open Biol 2019; 8:rsob.180043. [PMID: 30045885 PMCID: PMC6070721 DOI: 10.1098/rsob.180043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 06/28/2018] [Indexed: 12/14/2022] Open
Abstract
Transcription factor RUNX1 holds an integral role in multiple-lineage haematopoiesis and is implicated as a cofactor in V(D)J rearrangements during lymphocyte development. Runx1 deficiencies resulted in immaturity and reduction of lymphocytes in mice. In this study, we found that runx1W84X/W84X mutation led to the reduction and disordering of B cells, as well as the failure of V(D)J rearrangements in B cells but not T cells, resulting in antibody-inadequate-mediated immunodeficiency in adult zebrafish. By contrast, T cell development was not affected. The decreased number of B cells mainly results from excessive apoptosis in immature B cells. Disrupted B cell development results in runx1W84X/W84X mutants displaying a similar phenotype to common variable immunodeficiency—a primary immunodeficiency disease primarily characterized by frequent susceptibility to infection and deficient immune response, with marked reduction of antibody production of IgG, IgA and/or IgM. Our studies demonstrated an evolutionarily conserved function of runx1 in maturation and differentiation of B cells in adult zebrafish, which will serve as a valuable model for the study of immune deficiency diseases and their treatments.
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Affiliation(s)
- Yali Chi
- 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, People's Republic of China.,Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Zhibin Huang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, People's Republic of China
| | - Qi 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, People's Republic of China
| | - Xiaojie Xiong
- 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, People's Republic of China
| | - Kemin 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, People's Republic of China
| | - Jin Xu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, People's Republic of 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, People's Republic of 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, People's Republic of China .,Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, People's Republic of China
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19
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Berrun A, Harris E, Stachura DL. Isthmin 1 (ism1) is required for normal hematopoiesis in developing zebrafish. PLoS One 2018; 13:e0196872. [PMID: 29758043 PMCID: PMC5951578 DOI: 10.1371/journal.pone.0196872] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 04/20/2018] [Indexed: 02/06/2023] Open
Abstract
Hematopoiesis is an essential and highly regulated biological process that begins with hematopoietic stem cells (HSCs). In healthy organisms, HSCs are responsible for generating a multitude of mature blood cells every day, yet the molecular pathways that instruct HSCs to self-renew and differentiate into post-mitotic blood cells are not fully known. To understand these molecular pathways, we investigated novel genes expressed in hematopoietic-supportive cell lines from the zebrafish (Danio rerio), a model system increasingly utilized to uncover molecular pathways important in the development of other vertebrate species. We performed RNA sequencing of the transcriptome of three stromal cell lines derived from different stages of embryonic and adult zebrafish and identified hundreds of highly expressed transcripts. For our studies, we focused on isthmin 1 (ism1) due to its shared synteny with its human gene ortholog and because it is a secreted protein. To characterize ism1, we performed loss-of-function experiments to identify if mature blood cell production was disrupted. Myeloid and erythroid lineages were visualized and scored with transgenic zebrafish expressing lineage-specific markers. ism1 knockdown led to reduced numbers of neutrophils, macrophages, and erythrocytes. Analysis of clonal methylcellulose assays from ism1 morphants also showed a reduction in total hematopoietic stem and progenitor cells (HSPCs). Overall, we demonstrate that ism1 is required for normal generation of HSPCs and their downstream progeny during zebrafish hematopoiesis. Further investigation into ism1 and its importance in hematopoiesis may elucidate evolutionarily conserved processes in blood formation that can be further investigated for potential clinical utility.
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Affiliation(s)
- Arturo Berrun
- Department of Biological Sciences, California State University Chico, Chico, CA, United States of America
| | - Elena Harris
- Department of Computer Sciences, California State University Chico, Chico, CA, United States of America
| | - David L Stachura
- Department of Biological Sciences, California State University Chico, Chico, CA, United States of America
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20
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Liu C, Han T, Stachura DL, Wang H, Vaisman BL, Kim J, Klemke RL, Remaley AT, Rana TM, Traver D, Miller YI. Lipoprotein lipase regulates hematopoietic stem progenitor cell maintenance through DHA supply. Nat Commun 2018; 9:1310. [PMID: 29615667 PMCID: PMC5882990 DOI: 10.1038/s41467-018-03775-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 03/07/2018] [Indexed: 01/15/2023] Open
Abstract
Lipoprotein lipase (LPL) mediates hydrolysis of triglycerides (TGs) to supply free fatty acids (FFAs) to tissues. Here, we show that LPL activity is also required for hematopoietic stem progenitor cell (HSPC) maintenance. Knockout of Lpl or its obligatory cofactor Apoc2 results in significantly reduced HSPC expansion during definitive hematopoiesis in zebrafish. A human APOC2 mimetic peptide or the human very low-density lipoprotein, which carries APOC2, rescues the phenotype in apoc2 but not in lpl mutant zebrafish. Creating parabiotic apoc2 and lpl mutant zebrafish rescues the hematopoietic defect in both. Docosahexaenoic acid (DHA) is identified as an important factor in HSPC expansion. FFA-DHA, but not TG-DHA, rescues the HSPC defects in apoc2 and lpl mutant zebrafish. Reduced blood cell counts are also observed in Apoc2 mutant mice at the time of weaning. These results indicate that LPL-mediated release of the essential fatty acid DHA regulates HSPC expansion and definitive hematopoiesis.
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Affiliation(s)
- Chao Liu
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Tianxu Han
- Department of Pediatrics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - David L Stachura
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Huawei Wang
- Department of Pathology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Boris L Vaisman
- Lipoprotein Metabolism Section, Cardio-Pulmonary Branch, National Heart, Lung, and Blood Institute, 31 Center St, Bethesda, MD, 20892, USA
| | - Jungsu Kim
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Richard L Klemke
- Department of Pathology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Alan T Remaley
- Lipoprotein Metabolism Section, Cardio-Pulmonary Branch, National Heart, Lung, and Blood Institute, 31 Center St, Bethesda, MD, 20892, USA
| | - Tariq M Rana
- Department of Pediatrics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - David Traver
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Yury I Miller
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.
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21
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Berrun AC, Stachura DL. Development of an In Vitro Assay to Quantitate Hematopoietic Stem and Progenitor Cells (HSPCs) in Developing Zebrafish Embryos. J Vis Exp 2017:56836. [PMID: 29286381 PMCID: PMC5755513 DOI: 10.3791/56836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Hematopoiesis is an essential cellular process in which hematopoietic stem and progenitor cells (HSPCs) differentiate into the multitude of different cell lineages that comprise mature blood. Isolation and identification of these HSPCs is difficult because they are defined ex post facto; they can only be defined after their differentiation into specific cell lineages. Over the past few decades, the zebrafish (Danio rerio) has become a model organism to study hematopoiesis. Zebrafish embryos develop ex utero, and by 48 h post-fertilization (hpf) have generated definitive HSPCs. Assays to assess HSPC differentiation and proliferation capabilities have been developed, utilizing transplantation and subsequent reconstitution of the hematopoietic system in addition to visualizing specialized transgenic lines with confocal microscopy. However, these assays are cost prohibitive, technically difficult, and time consuming for many laboratories. Development of an in vitro model to assess HSPCs would be cost effective, quicker, and present fewer difficulties compared to previously described methods, allowing laboratories to quickly assess mutagenesis and drug screens that affect HSPC biology. This novel in vitro assay to assess HSPCs is performed by plating dissociated whole zebrafish embryos and adding exogenous factors that promote only HSPC differentiation and proliferation. Embryos are dissociated into single cells and plated with HSPC-supportive colony stimulating factors that cause them to generate colony forming units (CFUs) that arise from a single progenitor cell. These assays should allow more careful examination of the molecular pathways responsible for HSPC proliferation, differentiation, and regulation, which will allow researchers to understand the underpinnings of vertebrate hematopoiesis and its dysregulation during disease.
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Affiliation(s)
- A C Berrun
- Department of Biological Sciences, California State University, Chico
| | - D L Stachura
- Department of Biological Sciences, California State University, Chico;
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22
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Cortes M, Chen MJ, Stachura DL, Liu SY, Kwan W, Wright F, Vo LT, Theodore LN, Esain V, Frost IM, Schlaeger TM, Goessling W, Daley GQ, North TE. Developmental Vitamin D Availability Impacts Hematopoietic Stem Cell Production. Cell Rep 2017; 17:458-468. [PMID: 27705794 PMCID: PMC5338633 DOI: 10.1016/j.celrep.2016.09.012] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 07/18/2016] [Accepted: 09/02/2016] [Indexed: 01/01/2023] Open
Abstract
Vitamin D insufficiency is a worldwide epidemic affecting billions of individuals, including pregnant women and children. Despite its high incidence, the impact of active vitamin D3 (1,25(OH)D3) on embryonic development beyond osteo-regulation remains largely undefined. Here, we demonstrate that 1,25(OH)D3 availability modulates zebrafish hematopoietic stem and progenitor cell (HSPC) production. Loss of Cyp27b1-mediated biosynthesis or vitamin D receptor (VDR) function by gene knockdown resulted in significantly reduced runx1 expression and Flk1+cMyb+ HSPC numbers. Selective modulation in vivo and in vitro in zebrafish indicated that vitamin D3 acts directly on HSPCs, independent of calcium regulation, to increase proliferation. Notably, ex vivo treatment of human HSPCs with 1,25(OH)D3 also enhanced hematopoietic colony numbers, illustrating conservation across species. Finally, gene expression and epistasis analysis indicated that CXCL8 (IL-8) was a functional target of vitamin D3-mediated HSPC regulation. Together, these findings highlight the relevance of developmental 1,25(OH)D3 availability for definitive hematopoiesis and suggest potential therapeutic utility in HSPC expansion.
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Affiliation(s)
- Mauricio Cortes
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | | | - David L Stachura
- Department of Biological Sciences, California State University, Chico, Chico, CA 95929, USA
| | - Sarah Y Liu
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Wanda Kwan
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Francis Wright
- Department of Biological Sciences, California State University, Chico, Chico, CA 95929, USA
| | - Linda T Vo
- Boston Children's Hospital, Boston, MA 02115, USA
| | - Lindsay N Theodore
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Virginie Esain
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Isaura M Frost
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | | | - Wolfram Goessling
- Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - George Q Daley
- Boston Children's Hospital, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Trista E North
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
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23
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Tian Y, Xu J, Feng S, He S, Zhao S, Zhu L, Jin W, Dai Y, Luo L, Qu JY, Wen Z. The first wave of T lymphopoiesis in zebrafish arises from aorta endothelium independent of hematopoietic stem cells. J Exp Med 2017; 214:3347-3360. [PMID: 28931624 PMCID: PMC5679161 DOI: 10.1084/jem.20170488] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/05/2017] [Accepted: 08/21/2017] [Indexed: 01/05/2023] Open
Abstract
Tian et al. demonstrate that, in addition to giving rise to hematopoietic stem cells, the ventral endothelium of aorta in zebrafish also directly converts to non–hematopoietic stem cell hematopoietic precursors capable of generating a transient wave of CD4 Tαβ lymphocytes. T lymphocytes are key cellular components of the adaptive immune system and play a central role in cell-mediated immunity in vertebrates. Despite their heterogeneities, it is believed that all different types of T lymphocytes are generated exclusively via the differentiation of hematopoietic stem cells (HSCs). Using temporal–spatial resolved fate-mapping analysis and time-lapse imaging, here we show that the ventral endothelium in the zebrafish aorta–gonad–mesonephros and posterior blood island, the hematopoietic tissues previously known to generate HSCs and erythromyeloid progenitors, respectively, gives rise to a transient wave of T lymphopoiesis independent of HSCs. This HSC-independent T lymphopoiesis occurs early and generates predominantly CD4 Tαβ cells in the larval but not juvenile and adult stages, whereas HSC-dependent T lymphopoiesis emerges late and produces various subtypes of T lymphocytes continuously from the larval stage to adulthood. Our study unveils the existence, origin, and ontogeny of HSC-independent T lymphopoiesis in vivo and reveals the complexity of the endothelial-hematopoietic transition of the aorta.
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Affiliation(s)
- Ye Tian
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Jin Xu
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Shachuan Feng
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Sicong He
- Center of Systems Biology and Human Health, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Shizheng Zhao
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Lu Zhu
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Wan Jin
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Yimei Dai
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Lingfei Luo
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Molecular Developmental Biology, School of Life Sciences, Southwest University, Beibei, Chongqing, P.R. China
| | - Jianan Y Qu
- Center of Systems Biology and Human Health, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China
| | - Zilong Wen
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China .,Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Guangdong, Shenzhen, P.R. China
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24
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Wolf A, Aggio J, Campbell C, Wright F, Marquez G, Traver D, Stachura DL. Zebrafish Caudal Haematopoietic Embryonic Stromal Tissue (CHEST) Cells Support Haematopoiesis. Sci Rep 2017; 7:44644. [PMID: 28300168 PMCID: PMC5353684 DOI: 10.1038/srep44644] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 02/09/2017] [Indexed: 11/09/2022] Open
Abstract
Haematopoiesis is an essential process in early vertebrate development that occurs in different distinct spatial locations in the embryo that shift over time. These different sites have distinct functions: in some anatomical locations specific hematopoietic stem and progenitor cells (HSPCs) are generated de novo. In others, HSPCs expand. HSPCs differentiate and renew in other locations, ensuring homeostatic maintenance. These niches primarily control haematopoiesis through a combination of cell-to-cell signalling and cytokine secretion that elicit unique biological effects in progenitors. To understand the molecular signals generated by these niches, we report the generation of caudal hematopoietic embryonic stromal tissue (CHEST) cells from 72-hours post fertilization (hpf) caudal hematopoietic tissue (CHT), the site of embryonic HSPC expansion in fish. CHEST cells are a primary cell line with perivascular endothelial properties that expand hematopoietic cells in vitro. Morphological and transcript analysis of these cultures indicates lymphoid, myeloid, and erythroid differentiation, indicating that CHEST cells are a useful tool for identifying molecular signals critical for HSPC proliferation and differentiation in the zebrafish. These findings permit comparison with other temporally and spatially distinct haematopoietic-supportive zebrafish niches, as well as with mammalian haematopoietic-supportive cells to further the understanding of the evolution of the vertebrate hematopoietic system.
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Affiliation(s)
- Anja Wolf
- California State University, Chico, Department of Biological Sciences, Chico, CA, 95929, USA
| | - Julian Aggio
- California State University, Chico, Department of Biological Sciences, Chico, CA, 95929, USA
| | - Clyde Campbell
- Department of Cellular and Molecular Medicine, University of California at San Diego School of Medicine, La Jolla, CA, 92093, USA
| | - Francis Wright
- California State University, Chico, Department of Biological Sciences, Chico, CA, 95929, USA
| | - Gabriel Marquez
- California State University, Chico, Department of Biological Sciences, Chico, CA, 95929, USA
| | - David Traver
- Department of Cellular and Molecular Medicine, University of California at San Diego School of Medicine, La Jolla, CA, 92093, USA
| | - David L Stachura
- California State University, Chico, Department of Biological Sciences, Chico, CA, 95929, USA
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25
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Rességuier J, Delaune E, Coolen AL, Levraud JP, Boudinot P, Le Guellec D, Verrier B. Specific and Efficient Uptake of Surfactant-Free Poly(Lactic Acid) Nanovaccine Vehicles by Mucosal Dendritic Cells in Adult Zebrafish after Bath Immersion. Front Immunol 2017; 8:190. [PMID: 28289416 PMCID: PMC5326745 DOI: 10.3389/fimmu.2017.00190] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 02/09/2017] [Indexed: 12/23/2022] Open
Abstract
Activation of mucosal immunity is a key milestone for next-generation vaccine development. Biocompatible polymer-based nanoparticles (NPs) are promising vectors and adjuvants for mucosal vaccination. However, their in vivo uptake by mucosae and their biodistribution in antigen-presenting cells (APCs) need to be better understood to optimize mucosal nanovaccine designs. Here, we assessed if APCs are efficiently targeted in a spontaneous manner by surfactant-free poly(lactic acid) nanoparticles (PLA-NPs) after mucosal administration. Combining histology and flow imaging approaches, we describe and quantify the mucosal uptake of 200 nm PLA-NPs in adult zebrafish. Following bath administration, PLA-NPs penetrated and crossed epithelial barriers from all exposed mucosae. In mucosae, PLA-NPs accumulated in APCs, which were identified as dendritic cells (DCs), macrophages, and IgZ+ B cells in gills and skin. PLA-NP uptake by phagocytes was specific to these cell types, as PLA-NPs were not detected in neutrophils. Importantly, quantitative analyses in gills revealed that DCs take up PLA-NPs with specifically high efficiency. This study shows that surfactant-free PLA-NPs, which display optimal biocompatibility, can spontaneously target DCs with high efficiency in vivo following mucosal administration, and highlights PLA-NPs as powerful platforms for mucosal vaccine delivery in the medical and veterinary fields, and particularly in aquaculture.
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Affiliation(s)
- Julien Rességuier
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS) , Lyon , France
| | - Emilie Delaune
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS) , Lyon , France
| | - Anne-Line Coolen
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS) , Lyon , France
| | - Jean-Pierre Levraud
- Macrophages et Développement de l'Immunité, Institut Pasteur, Centre National de la Recherche Scientifique (CNRS) , Paris , France
| | - Pierre Boudinot
- Virologie et Immunologie Moléculaires, Institut National de la Recherche Agronomique (INRA), Université Paris-Saclay , Jouy-en-Josas , France
| | - Dominique Le Guellec
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS) , Lyon , France
| | - Bernard Verrier
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS) , Lyon , France
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26
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Sorting zebrafish thrombocyte lineage cells with a Cd41 monoclonal antibody enriches hematopoietic stem cell activity. Blood 2017; 129:1394-1397. [PMID: 28126924 DOI: 10.1182/blood-2016-12-759993] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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