1
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Biezeman H, Nubiè M, Oburoglu L. Hematopoietic cells emerging from hemogenic endothelium exhibit lineage-specific oxidative stress responses. J Biol Chem 2024:107815. [PMID: 39326495 DOI: 10.1016/j.jbc.2024.107815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 08/21/2024] [Accepted: 09/18/2024] [Indexed: 09/28/2024] Open
Abstract
During human embryogenesis, distinct waves of hematopoiesis give rise to various blood cell types, originating from hemogenic endothelial (HE) cells. As HE cells reside in hypoxic conditions in the embryo, we investigated the role of hypoxia in human EHT and subsequent hematopoiesis. Using single-cell RNA sequencing we describe hypoxia-related transcriptional changes in different HE-derived blood lineages, which reveal that erythroid cells are particularly susceptible to oxidative stress, due to decreased NRF2 activity in hypoxia. In contrast, non-erythroid CD45+ cells exhibit increased proliferative rates in hypoxic conditions and enhanced resilience to oxidative stress. We find that even in normoxia, erythroid cells present a clear predisposition to oxidative stress, with low GSH levels and high lipid peroxidation, in contrast to CD45+ cells. Intriguingly, ROS is produced at different sites in GPA+ and CD45+ cells, revealing differences in OXPHOS and the use of canonical vs. non-canonical TCA cycle in these lineages. Our findings elucidate how hypoxia and oxidative stress distinctly affect HE-derived hematopoietic lineages, uncovering critical transcriptional and metabolic pathways that influence blood cell development.
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Affiliation(s)
- Harmke Biezeman
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, BMC A12, 221 84 Lund, Sweden
| | - Martina Nubiè
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, Zurich, 8952, Switzerland
| | - Leal Oburoglu
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, BMC A12, 221 84 Lund, Sweden; Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, Zurich, 8952, Switzerland.
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2
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Williamson AE, Liyanage S, Hassanshahi M, Dona MSI, Toledo-Flores D, Tran DXA, Dimasi C, Schwarz N, Fernando S, Salagaras T, Long A, Kazenwadel J, Harvey NL, Drummond GR, Vinh A, Chandrakanthan V, Misra A, Neufeld Z, Tan JTM, Martelotto L, Polo JM, Bonder CS, Pinto AR, Sharma S, Nicholls SJ, Bursill CA, Psaltis PJ. Discovery of an embryonically derived bipotent population of endothelial-macrophage progenitor cells in postnatal aorta. Nat Commun 2024; 15:7097. [PMID: 39154007 PMCID: PMC11330468 DOI: 10.1038/s41467-024-51637-7] [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: 12/20/2023] [Accepted: 08/13/2024] [Indexed: 08/19/2024] Open
Abstract
Converging evidence indicates that extra-embryonic yolk sac is the source of both macrophages and endothelial cells in adult mouse tissues. Prevailing views are that these embryonically derived cells are maintained after birth by proliferative self-renewal in their differentiated states. Here we identify clonogenic endothelial-macrophage (EndoMac) progenitor cells in the adventitia of embryonic and postnatal mouse aorta, that are independent of Flt3-mediated bone marrow hematopoiesis and derive from an early embryonic CX3CR1+ and CSF1R+ source. These bipotent progenitors are proliferative and vasculogenic, contributing to adventitial neovascularization and formation of perfused blood vessels after transfer into ischemic tissue. We establish a regulatory role for angiotensin II, which enhances their clonogenic and differentiation properties and rapidly stimulates their proliferative expansion in vivo. Our findings demonstrate that embryonically derived EndoMac progenitors participate in local vasculogenic responses in the aortic wall by contributing to the expansion of endothelial cells and macrophages postnatally.
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Affiliation(s)
- Anna E Williamson
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Sanuri Liyanage
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Mohammadhossein Hassanshahi
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Malathi S I Dona
- Cardiac Cellular Systems Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Deborah Toledo-Flores
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Dang X A Tran
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Catherine Dimasi
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Nisha Schwarz
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Sanuja Fernando
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Thalia Salagaras
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Aaron Long
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Department of Cardiology, Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia
| | - Jan Kazenwadel
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Natasha L Harvey
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Grant R Drummond
- Department of Microbiology, Anatomy, Physiology and Pharmacology and Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Antony Vinh
- Department of Microbiology, Anatomy, Physiology and Pharmacology and Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Vashe Chandrakanthan
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
- Precision Medicine, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Ashish Misra
- Faculty of Medicine and Health, University of Sydney and Heart Research Institute, Newtown, NSW, Australia
| | - Zoltan Neufeld
- School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, Australia
| | - Joanne T M Tan
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Luciano Martelotto
- Adelaide Centre for Epigenetics and the South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Jose M Polo
- Adelaide Centre for Epigenetics and the South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Claudine S Bonder
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Alexander R Pinto
- Cardiac Cellular Systems Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Microbiology, Anatomy, Physiology and Pharmacology and Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Shiwani Sharma
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Flinders Medical Research Institute, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
| | - Stephen J Nicholls
- Monash Cardiovascular Research Centre, Monash University, Melbourne, VIC, Australia
| | - Christina A Bursill
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Peter J Psaltis
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia.
- Department of Cardiology, Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia.
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3
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Sommer A, Gomez Perdiguero E. Extraembryonic hematopoietic lineages-to macrophages and beyond. Exp Hematol 2024; 136:104285. [PMID: 39053841 DOI: 10.1016/j.exphem.2024.104285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 07/11/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024]
Abstract
The first blood and immune cells in vertebrates emerge in the extraembryonic yolk sac. Throughout the last century, it has become evident that this extraembryonic tissue gives rise to transient primitive and definitive hematopoiesis but not hematopoietic stem cells. More recently, studies have elucidated that yolk sac-derived blood and immune cells are present far longer than originally expected. These cells take over essential roles for the survival and proper organogenesis of the developing fetus up until birth. In this review, we discuss the most recent findings and views on extraembryonic hematopoiesis in mice and humans.
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Affiliation(s)
- Alina Sommer
- Macrophages and Endothelial Cells Unit, Department of Developmental and Stem Cell Biology, Institut Pasteur, Université Paris Cité, Paris, France; Sorbonne Université, Collège Doctoral, Paris, France
| | - Elisa Gomez Perdiguero
- Macrophages and Endothelial Cells Unit, Department of Developmental and Stem Cell Biology, Institut Pasteur, Université Paris Cité, Paris, France.
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4
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Wei J, Peng MY, Lu HX. Functional transformation of macrophage mitochondria in cardiovascular diseases. Mol Cell Biochem 2024:10.1007/s11010-024-05049-2. [PMID: 38884847 DOI: 10.1007/s11010-024-05049-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 06/09/2024] [Indexed: 06/18/2024]
Abstract
Mitochondria are pivotal in the modulation of macrophage activation, differentiation, and survival. Furthermore, macrophages are instrumental in the onset and progression of cardiovascular diseases. Hence, it is imperative to investigate the role of mitochondria within macrophages in the context of cardiovascular disease. In this review, we provide an updated description of the origin and classification of cardiac macrophages and also focused on the relationship between macrophages and mitochondria in cardiovascular diseases with respect to (1) proinflammatory or anti-inflammatory macrophages, (2) macrophage apoptosis, (3) macrophage pyroptosis, and (4) macrophage efferocytosis. Clarifying the relationship between mitochondria and macrophages can aid the exploration of novel therapeutic strategies for cardiovascular disease.
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Affiliation(s)
- Jing Wei
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjng Medical University, Nanjing, 211100, China
| | - Ming-Yu Peng
- Department of Laboratory Medicine, Jiangning Hospital Affiliated to Nanjng Medical University, Nanjing, 211100, China
| | - Hong-Xiang Lu
- Department of Laboratory Medicine, Jiangning Hospital Affiliated to Nanjng Medical University, Nanjing, 211100, China.
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjng Medical University, Nanjing, 211100, China.
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5
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Yokomizo T, Suda T. Development of the hematopoietic system: expanding the concept of hematopoietic stem cell-independent hematopoiesis. Trends Cell Biol 2024; 34:161-172. [PMID: 37481335 DOI: 10.1016/j.tcb.2023.06.007] [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: 02/27/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/24/2023]
Abstract
Hematopoietic stem cells (HSCs) give rise to nearly all blood cell types and play a central role in blood cell production in adulthood. For many years it was assumed that these roles were similarly responsible for driving the formation of the hematopoietic system during the embryonic period. However, detailed analysis of embryonic hematopoiesis has revealed the presence of hematopoietic cells that develop independently of HSCs both before and after HSC generation. Furthermore, it is becoming increasingly clear that HSCs are less involved in the production of functioning blood cells during the embryonic period when there is a much higher contribution from HSC-independent hematopoietic processes. We outline the current understanding and arguments for HSC-dependent and -independent hematopoiesis, mainly focusing on mouse ontogeny.
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Affiliation(s)
- Tomomasa Yokomizo
- Microscopic and Developmental Anatomy, Tokyo Women's Medical University, Tokyo 162-8666, Japan.
| | - Toshio Suda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599; International Research Center for Medical Sciences, Kumamoto University, Kumamoto 860-0811, Japan.
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6
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Ahlback A, Gentek R. Fate-Mapping Macrophages: From Ontogeny to Functions. Methods Mol Biol 2024; 2713:11-43. [PMID: 37639113 DOI: 10.1007/978-1-0716-3437-0_2] [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
Macrophages are vital to the physiological function of most tissues, but also contribute to disease through a multitude of pathological roles. They are thus highly plastic and heterogeneous. It is now well recognized that macrophages develop from several distinct progenitors from embryogenesis onwards and extending throughout life. Tissue-resident macrophages largely originate from embryonic sources and in many cases self-maintain independently without monocyte input. However, in certain tissues, monocyte-derived macrophages replace these over time or as a result of tissue injury and inflammation. This additional layer of heterogeneity has introduced many questions regarding the influence of origin on fate and function of macrophages in health and disease. To comprehensively address these questions, appropriate methods of tracing macrophage ontogeny are required. This chapter explores why ontogeny is of vital importance in macrophage biology and how to delineate macrophage populations by origin through genetic fate mapping. First, we summarize the current view of macrophage ontogeny and briefly discuss how origin may influence macrophage function in homeostasis and pathology. We go on to make the case for genetic fate mapping as the gold standard and briefly review different fate-mapping models. We then put forward our recommendations for fate-mapping strategies best suited to answer specific research questions and finally discuss the strengths and limitations of currently available models.
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Affiliation(s)
- Anna Ahlback
- The University of Edinburgh, Institute for Regeneration and Repair, Centre for Reproductive Health & Centre for Inflammation Research, Edinburgh, UK
| | - Rebecca Gentek
- The University of Edinburgh, Institute for Regeneration and Repair, Centre for Reproductive Health & Centre for Inflammation Research, Edinburgh, UK.
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7
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Zheng K, Wei Z, Li W. Ecological insights into hematopoiesis regulation: unraveling the influence of gut microbiota. Gut Microbes 2024; 16:2350784. [PMID: 38727219 PMCID: PMC11093038 DOI: 10.1080/19490976.2024.2350784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
The gut microbiota constitutes a vast ecological system within the human body, forming a mutually interdependent entity with the host. In recent years, advancements in molecular biology technologies have provided a clearer understanding of the role of the gut microbiota. They not only influence the local immune status and metabolic functions of the host's intestinal tract but also impact the functional transformation of hematopoietic stem cells (HSCs) through the gut-blood axis. In this review, we will discuss the role of the gut microbiota in influencing hematopoiesis. We analyze the interactions between HSCs and other cellular components, with a particular emphasis on the direct functional regulation of HSCs by the gut microbiota and their indirect influence through cellular components in the bone marrow microenvironment. Additionally, we propose potential control targets for signaling pathways triggered by the gut microbiota to regulate hematopoietic function, filling crucial knowledge gaps in the development of this research field.
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Affiliation(s)
- Kaiwen Zheng
- Cancer Center, the First Hospital of Jilin University, Changchun, China
| | - Zhifeng Wei
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
| | - Wei Li
- Cancer Center, the First Hospital of Jilin University, Changchun, China
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8
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Cui Z, Wei H, Goding C, Cui R. Stem cell heterogeneity, plasticity, and regulation. Life Sci 2023; 334:122240. [PMID: 37925141 DOI: 10.1016/j.lfs.2023.122240] [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: 09/08/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/06/2023]
Abstract
As a population of homogeneous cells with both self-renewal and differentiation potential, stem cell pools are highly compartmentalized and contain distinct subsets that exhibit stable but limited heterogeneity during homeostasis. However, their striking plasticity is showcased under natural or artificial stress, such as injury, transplantation, cancer, and aging, leading to changes in their phenotype, constitution, metabolism, and function. The complex and diverse network of cell-extrinsic niches and signaling pathways, together with cell-intrinsic genetic and epigenetic regulators, tightly regulate both the heterogeneity during homeostasis and the plasticity under perturbation. Manipulating these factors offers better control of stem cell behavior and a potential revolution in the current state of regenerative medicine. However, disruptions of normal regulation by genetic mutation or excessive plasticity acquisition may contribute to the formation of tumors. By harnessing innovative techniques that enhance our understanding of stem cell heterogeneity and employing novel approaches to maximize the utilization of stem cell plasticity, stem cell therapy holds immense promise for revolutionizing the future of medicine.
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Affiliation(s)
- Ziyang Cui
- Department of Dermatology and Venerology, Peking University First Hospital, Beijing 100034, China.
| | - Hope Wei
- Department of Biology, Boston University, 5 Cummington Mall, Boston, MA 02215, United States of America
| | - Colin Goding
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX37DQ, UK
| | - Rutao Cui
- Skin Disease Research Institute, The 2nd Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
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9
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Zhang J, Dong Y, Di S, Xie S, Fan B, Gong T. Tumor associated macrophages in esophageal squamous carcinoma: Promising therapeutic implications. Biomed Pharmacother 2023; 167:115610. [PMID: 37783153 DOI: 10.1016/j.biopha.2023.115610] [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: 08/16/2023] [Revised: 09/18/2023] [Accepted: 09/27/2023] [Indexed: 10/04/2023] Open
Abstract
Esophageal squamous carcinoma (ESCC) is a prevalent and highly lethal malignant tumor, with a five-year survival rate of approximately 20 %. Tumor-associated macrophages (TAMs) are the most prominent immune cells in the tumor microenvironment (TME), comprising over 50 % of the tumor volume. TAMs can be polarized into two distinct phenotypes, M1-type and M2-type, through interactions with cancer cells. M2-type TAMs are more abundant than M1-type TAMs in the TME, contributing to tumor progression, such as tumor cell survival and the construction of an immunosuppressive environment. This review focuses on the role of TAMs in ESCC, including their polarization, impact on tumor proliferation, angiogenesis, invasion, migration, therapy resistance, and immunosuppression. In addition, we discuss the potential of targeting TAMs for clinical therapy in ESCC. A thorough comprehension of the molecular biology about TAMs is essential for the development of innovative therapeutic strategies to treat ESCC.
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Affiliation(s)
- Jiale Zhang
- Department of Thoracic Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, China; Department of Thoracic Surgery, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yanxin Dong
- Department of Thoracic Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, China; Department of Thoracic Surgery, School of Medicine, South China University of Technology, Guangzhou, China
| | - Shouyin Di
- Department of Thoracic Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Shun Xie
- Department of Thoracic Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Boshi Fan
- Department of Thoracic Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, China.
| | - Taiqian Gong
- Department of Thoracic Surgery, the Sixth Medical Center of PLA General Hospital, Beijing, China.
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10
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Liu H, Ishikawa-Ankerhold H, Winterhalter J, Lorenz M, Vladymyrov M, Massberg S, Schulz C, Orban M. Multiphoton In Vivo Microscopy of Embryonic Thrombopoiesis Reveals the Generation of Platelets through Budding. Cells 2023; 12:2411. [PMID: 37830625 PMCID: PMC10572188 DOI: 10.3390/cells12192411] [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: 07/26/2023] [Revised: 09/25/2023] [Accepted: 10/03/2023] [Indexed: 10/14/2023] Open
Abstract
Platelets are generated by specialized cells called megakaryocytes (MKs). However, MK's origin and platelet release mode have remained incompletely understood. Here, we established direct visualization of embryonic thrombopoiesis in vivo by combining multiphoton intravital microscopy (MP-IVM) with a fluorescence switch reporter mouse model under control of the platelet factor 4 promoter (Pf4CreRosa26mTmG). Using this microscopy tool, we discovered that fetal liver MKs provide higher thrombopoietic activity than yolk sac MKs. Mechanistically, fetal platelets were released from MKs either by membrane buds or the formation of proplatelets, with the former constituting the key process. In E14.5 c-Myb-deficient embryos that lack definitive hematopoiesis, MK and platelet numbers were similar to wild-type embryos, indicating the independence of embryonic thrombopoiesis from definitive hematopoiesis at this stage of development. In summary, our novel MP-IVM protocol allows the characterization of thrombopoiesis with high spatio-temporal resolution in the mouse embryo and has identified membrane budding as the main mechanism of fetal platelet production.
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Affiliation(s)
- Huan Liu
- Department of Internal Medicine I, Ludwig Maximilians University, 81377 Munich, Germany; (H.L.); (H.I.-A.); (J.W.); (M.L.); (S.M.)
| | - Hellen Ishikawa-Ankerhold
- Department of Internal Medicine I, Ludwig Maximilians University, 81377 Munich, Germany; (H.L.); (H.I.-A.); (J.W.); (M.L.); (S.M.)
| | - Julia Winterhalter
- Department of Internal Medicine I, Ludwig Maximilians University, 81377 Munich, Germany; (H.L.); (H.I.-A.); (J.W.); (M.L.); (S.M.)
| | - Michael Lorenz
- Department of Internal Medicine I, Ludwig Maximilians University, 81377 Munich, Germany; (H.L.); (H.I.-A.); (J.W.); (M.L.); (S.M.)
| | - Mykhailo Vladymyrov
- Laboratory for High Energy Physics (LHEP), Albert Einstein Center for Fundamental Physics, University of Bern, 3012 Bern, Switzerland;
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
- Data Science Lab, Mathematical Institute, University of Bern, 3012 Bern, Switzerland
| | - Steffen Massberg
- Department of Internal Medicine I, Ludwig Maximilians University, 81377 Munich, Germany; (H.L.); (H.I.-A.); (J.W.); (M.L.); (S.M.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802 Munich, Germany
| | - Christian Schulz
- Department of Internal Medicine I, Ludwig Maximilians University, 81377 Munich, Germany; (H.L.); (H.I.-A.); (J.W.); (M.L.); (S.M.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802 Munich, Germany
| | - Mathias Orban
- Department of Internal Medicine I, Ludwig Maximilians University, 81377 Munich, Germany; (H.L.); (H.I.-A.); (J.W.); (M.L.); (S.M.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802 Munich, Germany
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11
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Peixoto MM, Soares-da-Silva F, Bonnet V, Ronteix G, Santos RF, Mailhe MP, Feng X, Pereira JP, Azzoni E, Anselmi G, de Bruijn M, Baroud CN, Pinto-do-Ó P, Cumano A. Spatiotemporal dynamics of cytokines expression dictate fetal liver hematopoiesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.24.554612. [PMID: 37662317 PMCID: PMC10473721 DOI: 10.1101/2023.08.24.554612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
During embryogenesis, yolk-sac and intra-embryonic-derived hematopoietic progenitors, comprising the precursors of adult hematopoietic stem cells, converge into the fetal liver. With a new staining strategy, we defined all non-hematopoietic components of the fetal liver and found that hepatoblasts are the major producers of hematopoietic growth factors. We identified mesothelial cells, a novel component of the stromal compartment, producing Kit ligand, a major hematopoietic cytokine. A high-definition imaging dataset analyzed using a deep-learning based pipeline allowed the unambiguous identification of hematopoietic and stromal populations, and enabled determining a neighboring network composition, at the single cell resolution. Throughout active hematopoiesis, progenitors preferentially associate with hepatoblasts, but not with stellate or endothelial cells. We found that, unlike yolk sac-derived progenitors, intra-embryonic progenitors respond to a chemokine gradient created by CXCL12-producing stellate cells. These results revealed that FL hematopoiesis is a spatiotemporal dynamic process, defined by an environment characterized by low cytokine concentrations.
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12
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Ceccacci E, Villa E, Santoro F, Minucci S, Ruhrberg C, Fantin A. A Refined Single Cell Landscape of Haematopoiesis in the Mouse Foetal Liver. J Dev Biol 2023; 11:15. [PMID: 37092477 PMCID: PMC10123705 DOI: 10.3390/jdb11020015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/13/2023] [Accepted: 03/18/2023] [Indexed: 04/25/2023] Open
Abstract
During prenatal life, the foetal liver is colonised by several waves of haematopoietic progenitors to act as the main haematopoietic organ. Single cell (sc) RNA-seq has been used to identify foetal liver cell types via their transcriptomic signature and to compare gene expression patterns as haematopoietic development proceeds. To obtain a refined single cell landscape of haematopoiesis in the foetal liver, we have generated a scRNA-seq dataset from a whole mouse E12.5 liver that includes a larger number of cells than prior datasets at this stage and was obtained without cell type preselection to include all liver cell populations. We combined mining of this dataset with that of previously published datasets at other developmental stages to follow transcriptional dynamics as well as the cell cycle state of developing haematopoietic lineages. Our findings corroborate several prior reports on the timing of liver colonisation by haematopoietic progenitors and the emergence of differentiated lineages and provide further molecular characterisation of each cell population. Extending these findings, we demonstrate the existence of a foetal intermediate haemoglobin profile in the mouse, similar to that previously identified in humans, and a previously unidentified population of primitive erythroid cells in the foetal liver.
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Affiliation(s)
- Elena Ceccacci
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy
| | - Emanuela Villa
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy
- Department of Biosciences, University of Milan, Via G. Celoria 26, 20133 Milan, Italy
| | - Fabio Santoro
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy
| | - Saverio Minucci
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Via Santa Sofia 9, 20122 Milan, Italy
| | - Christiana Ruhrberg
- UCL Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EL, UK
| | - Alessandro Fantin
- Department of Biosciences, University of Milan, Via G. Celoria 26, 20133 Milan, Italy
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13
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In vivo clonal tracking reveals evidence of haemangioblast and haematomesoblast contribution to yolk sac haematopoiesis. Nat Commun 2023; 14:41. [PMID: 36596806 PMCID: PMC9810727 DOI: 10.1038/s41467-022-35744-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/22/2022] [Indexed: 01/05/2023] Open
Abstract
During embryogenesis, haematopoietic and endothelial lineages emerge closely in time and space. It is thought that the first blood and endothelium derive from a common clonal ancestor, the haemangioblast. However, investigation of candidate haemangioblasts in vitro revealed the capacity for mesenchymal differentiation, a feature more compatible with an earlier mesodermal precursor. To date, no evidence for an in vivo haemangioblast has been discovered. Using single cell RNA-Sequencing and in vivo cellular barcoding, we have unravelled the ancestral relationships that give rise to the haematopoietic lineages of the yolk sac, the endothelium, and the mesenchyme. We show that the mesodermal derivatives of the yolk sac are produced by three distinct precursors with dual-lineage outcomes: the haemangioblast, the mesenchymoangioblast, and a previously undescribed cell type: the haematomesoblast. Between E5.5 and E7.5, this trio of precursors seeds haematopoietic, endothelial, and mesenchymal trajectories.
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14
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Gelon L, Fromont L, Lefrançais E. Occurrence and role of lung megakaryocytes in infection and inflammation. Front Immunol 2022; 13:1029223. [PMID: 36524131 PMCID: PMC9745136 DOI: 10.3389/fimmu.2022.1029223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/09/2022] [Indexed: 12/03/2022] Open
Abstract
Megakaryocytes (MKs) are large cells giving rise to platelets. It is well established that in adults, MKs develop from hematopoietic stem cells and reside in the bone marrow. MKs are also rare but normal constituents of the venous blood returning to the lungs, and MKs are found in the lung vasculature (MKcirc), suggesting that these cells are migrants from the bone marrow and get trapped in lung capillaries where the final steps of platelet production can occur. An unprecedented increase in the number of lung and circulating MKs was described in coronavirus disease 2019 (COVID-19) patients, suggesting that lung thrombopoiesis may be increased during lung infection and/or thromboinflammation. In addition to the population of platelet-producing intravascular MKs in the lung, a population of lung-resident megakaryocytes (MKL) has been identified and presents a specific immune signature compared to its bone marrow counterparts. Recent single-cell analysis and intravital imaging have helped us gain a better understanding of these populations in mouse and human. This review aims at summarizing the recent data on increased occurrence of lung MKs and discusses their origin, specificities, and potential role in homeostasis and inflammatory and infectious lung diseases. Here, we address remaining questions, controversies, and methodologic challenges for further studies of both MKcirc and MKL.
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15
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Tarazi S, Aguilera-Castrejon A, Joubran C, Ghanem N, Ashouokhi S, Roncato F, Wildschutz E, Haddad M, Oldak B, Gomez-Cesar E, Livnat N, Viukov S, Lokshtanov D, Naveh-Tassa S, Rose M, Hanna S, Raanan C, Brenner O, Kedmi M, Keren-Shaul H, Lapidot T, Maza I, Novershtern N, Hanna JH. Post-gastrulation synthetic embryos generated ex utero from mouse naive ESCs. Cell 2022; 185:3290-3306.e25. [PMID: 35988542 PMCID: PMC9439721 DOI: 10.1016/j.cell.2022.07.028] [Citation(s) in RCA: 103] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/08/2022] [Accepted: 07/28/2022] [Indexed: 02/06/2023]
Abstract
In vitro cultured stem cells with distinct developmental capacities can contribute to embryonic or extraembryonic tissues after microinjection into pre-implantation mammalian embryos. However, whether cultured stem cells can independently give rise to entire gastrulating embryo-like structures with embryonic and extraembryonic compartments remains unknown. Here, we adapt a recently established platform for prolonged ex utero growth of natural embryos to generate mouse post-gastrulation synthetic whole embryo models (sEmbryos), with both embryonic and extraembryonic compartments, starting solely from naive ESCs. This was achieved by co-aggregating non-transduced ESCs, with naive ESCs transiently expressing Cdx2 or Gata4 to promote their priming toward trophectoderm and primitive endoderm lineages, respectively. sEmbryos adequately accomplish gastrulation, advance through key developmental milestones, and develop organ progenitors within complex extraembryonic compartments similar to E8.5 stage mouse embryos. Our findings highlight the plastic potential of naive pluripotent cells to self-organize and functionally reconstitute and model the entire mammalian embryo beyond gastrulation. Advanced synthetic embryos (sEmbryos) self-assembled from ESCs in an ex utero setup Naive ESCs give rise to all embryonic and extraembryonic compartments in sEmbryos Post-gastrulation stem cell derived sEmbryos develop organ-specific progenitors Extraembryonic compartments adequately develop in post-gastrulation whole sEmbryos
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Affiliation(s)
- Shadi Tarazi
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel.
| | | | - Carine Joubran
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Nadir Ghanem
- Department of Obstetrics and Gynecology, Rambam Health Care Campus, Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Shahd Ashouokhi
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Francesco Roncato
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Emilie Wildschutz
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Montaser Haddad
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Bernardo Oldak
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Elidet Gomez-Cesar
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Nir Livnat
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Sergey Viukov
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Dmitry Lokshtanov
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Segev Naveh-Tassa
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Max Rose
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Suhair Hanna
- Department of Pediatrics, Rambam Health Care Campus, Technion, Haifa, Israel
| | - Calanit Raanan
- Department of Veterinary Resources, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ori Brenner
- Department of Veterinary Resources, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Merav Kedmi
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Hadas Keren-Shaul
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Tsvee Lapidot
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Itay Maza
- Gastroenterology Unit, Rambam Health Care Campus, Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.
| | - Noa Novershtern
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel.
| | - Jacob H Hanna
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel.
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16
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Embryonic Origins of the Hematopoietic System: Hierarchies and Heterogeneity. Hemasphere 2022; 6:e737. [PMID: 35647488 PMCID: PMC9132533 DOI: 10.1097/hs9.0000000000000737] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/28/2022] [Indexed: 11/26/2022] Open
Abstract
The hierarchical framework of the adult blood system as we know it from current medical and hematology textbooks, displays a linear branching network of dividing and differentiated cells essential for the growth and maintenance of the healthy organism. This view of the hierarchy has evolved over the last 75 years. An amazing increase in cellular complexity has been realized; however, innovative single-cell technologies continue to uncover essential cell types and functions in animal models and the human blood system. The most potent cell of the hematopoietic hierarchy is the hematopoietic stem cell. Stem cells for adult tissues are the long-lived self-renewing cellular component, which ensure that differentiated tissue-specific cells are maintained and replaced through the entire adult lifespan. Although much blood research is focused on hematopoietic tissue homeostasis, replacement and regeneration during adult life, embryological studies have widened and enriched our understanding of additional developmental hierarchies and interacting cells of this life-sustaining tissue. Here, we review the current state of knowledge of the hierarchical organization and the vast heterogeneity of the hematopoietic system from embryonic to adult stages.
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17
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Wu B, Zhang X, Chiang HC, Pan H, Yuan B, Mitra P, Qi L, Simonyan H, Young CN, Yvon E, Hu Y, Zhang N, Li R. RNA polymerase II pausing factor NELF in CD8 + T cells promotes antitumor immunity. Nat Commun 2022; 13:2155. [PMID: 35444206 PMCID: PMC9021285 DOI: 10.1038/s41467-022-29869-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/31/2022] [Indexed: 11/15/2022] Open
Abstract
T cell factor 1 (TCF1) is required for memory and stem-like CD8+ T cell functions. How TCF1 partners with other transcription factors to regulate transcription remains unclear. Here we show that negative elongation factor (NELF), an RNA polymerase II (Pol II) pausing factor, cooperates with TCF1 in T cell responses to cancer. Deletion of mouse Nelfb, which encodes the NELFB subunit, in mature T lymphocytes impairs immune responses to both primary tumor challenge and tumor antigen-mediated vaccination. Nelfb deletion causes more exhausted and reduced memory T cell populations, whereas its ectopic expression boosts antitumor immunity and efficacy of chimeric antigen receptor T-cell immunotherapy. Mechanistically, NELF is associated with TCF1 and recruited preferentially to the enhancers and promoters of TCF1 target genes. Nelfb ablation reduces Pol II pausing and chromatin accessibility at these TCF1-associated loci. Our findings thus suggest an important and rate-limiting function of NELF in anti-tumor immunity. Negative elongation factor B (NELFB) is one of the four subunits of the NELF complex that controls RNA polymerase II pausing. Here the authors show that, by associating with the key T cell transcription factor TCF1, NELFB is required for eliciting CD8 + T cell memory and anti-tumor immune responses.
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Affiliation(s)
- Bogang Wu
- Department of Biochemistry & Molecular Medicine, The George Washington University, Washington, DC, 20037, USA
| | - Xiaowen Zhang
- Department of Biochemistry & Molecular Medicine, The George Washington University, Washington, DC, 20037, USA
| | - Huai-Chin Chiang
- Department of Biochemistry & Molecular Medicine, The George Washington University, Washington, DC, 20037, USA
| | - Haihui Pan
- Department of Biochemistry & Molecular Medicine, The George Washington University, Washington, DC, 20037, USA
| | - Bin Yuan
- Department of Biochemistry & Molecular Medicine, The George Washington University, Washington, DC, 20037, USA
| | - Payal Mitra
- Department of Anatomy & Cell Biology, The George Washington University, Washington, DC, 20037, USA
| | - Leilei Qi
- Department of Anatomy & Cell Biology, The George Washington University, Washington, DC, 20037, USA
| | - Hayk Simonyan
- Department of Pharmacology & Physiology, The George Washington University, Washington, DC, 20037, USA
| | - Colin N Young
- Department of Pharmacology & Physiology, The George Washington University, Washington, DC, 20037, USA
| | - Eric Yvon
- Department of Medicine, The George Washington University Cancer Center School of Medicine & Health Sciences, The George Washington University, Washington, DC, 20037, USA
| | - Yanfen Hu
- Department of Anatomy & Cell Biology, The George Washington University, Washington, DC, 20037, USA
| | - Nu Zhang
- Department of Microbiology, Immunology & Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Rong Li
- Department of Biochemistry & Molecular Medicine, The George Washington University, Washington, DC, 20037, USA.
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18
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Watt SM, Hua P, Roberts I. Increasing Complexity of Molecular Landscapes in Human Hematopoietic Stem and Progenitor Cells during Development and Aging. Int J Mol Sci 2022; 23:3675. [PMID: 35409034 PMCID: PMC8999121 DOI: 10.3390/ijms23073675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 02/05/2023] Open
Abstract
The past five decades have seen significant progress in our understanding of human hematopoiesis. This has in part been due to the unprecedented development of advanced technologies, which have allowed the identification and characterization of rare subsets of human hematopoietic stem and progenitor cells and their lineage trajectories from embryonic through to adult life. Additionally, surrogate in vitro and in vivo models, although not fully recapitulating human hematopoiesis, have spurred on these scientific advances. These approaches have heightened our knowledge of hematological disorders and diseases and have led to their improved diagnosis and therapies. Here, we review human hematopoiesis at each end of the age spectrum, during embryonic and fetal development and on aging, providing exemplars of recent progress in deciphering the increasingly complex cellular and molecular hematopoietic landscapes in health and disease. This review concludes by highlighting links between chronic inflammation and metabolic and epigenetic changes associated with aging and in the development of clonal hematopoiesis.
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Affiliation(s)
- Suzanne M. Watt
- Stem Cell Research, Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9BQ, UK
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, North Terrace, Adelaide 5005, Australia
- Cancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide 5001, Australia
| | - Peng Hua
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China;
| | - Irene Roberts
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, and NIHR Oxford Biomedical Research Centre Haematology Theme, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK;
- Department of Paediatrics and NIHR Oxford Biomedical Research Centre Haematology Theme, University of Oxford, Oxford OX3 9DU, UK
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19
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Magalhaes MS, Potter HG, Ahlback A, Gentek R. Developmental programming of macrophages by early life adversity. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 368:213-259. [PMID: 35636928 DOI: 10.1016/bs.ircmb.2022.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Macrophages are central elements of all organs, where they have a multitude of physiological and pathological functions. The first macrophages are produced during fetal development, and most adult organs retain populations of fetal-derived macrophages that self-maintain without major input of hematopoietic stem cell-derived monocytes. Their developmental origins make macrophages highly susceptible to environmental perturbations experienced in early life, in particular the fetal period. It is now well recognized that such adverse developmental conditions contribute to a wide range of diseases later in life. This chapter explores the notion that macrophages are key targets of environmental adversities during development, and mediators of their long-term impact on health and disease. We first briefly summarize our current understanding of macrophage ontogeny and their biology in tissues and consider potential mechanisms by which environmental stressors may mediate fetal programming. We then review evidence for programming of macrophages by adversities ranging from maternal immune activation and diet to environmental pollutants and toxins, which have disease relevance for different organ systems. Throughout this chapter, we contemplate appropriate experimental strategies to study macrophage programming. We conclude by discussing how our current knowledge of macrophage programming could be conceptualized, and finally highlight open questions in the field and approaches to address them.
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Affiliation(s)
- Marlene S Magalhaes
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Harry G Potter
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Anna Ahlback
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Rebecca Gentek
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom.
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20
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Barone C, Orsenigo R, Meneveri R, Brunelli S, Azzoni E. One Size Does Not Fit All: Heterogeneity in Developmental Hematopoiesis. Cells 2022; 11:1061. [PMID: 35326511 PMCID: PMC8947200 DOI: 10.3390/cells11061061] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 02/06/2023] Open
Abstract
Our knowledge of the complexity of the developing hematopoietic system has dramatically expanded over the course of the last few decades. We now know that, while hematopoietic stem cells (HSCs) firmly reside at the top of the adult hematopoietic hierarchy, multiple HSC-independent progenitor populations play variegated and fundamental roles during fetal life, which reflect on adult physiology and can lead to disease if subject to perturbations. The importance of obtaining a high-resolution picture of the mechanisms by which the developing embryo establishes a functional hematopoietic system is demonstrated by many recent indications showing that ontogeny is a primary determinant of function of multiple critical cell types. This review will specifically focus on exploring the diversity of hematopoietic stem and progenitor cells unique to embryonic and fetal life. We will initially examine the evidence demonstrating heterogeneity within the hemogenic endothelium, precursor to all definitive hematopoietic cells. Next, we will summarize the dynamics and characteristics of the so-called "hematopoietic waves" taking place during vertebrate development. For each of these waves, we will define the cellular identities of their components, the extent and relevance of their respective contributions as well as potential drivers of heterogeneity.
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Affiliation(s)
| | | | | | | | - Emanuele Azzoni
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (C.B.); (R.O.); (R.M.); (S.B.)
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21
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Lee SE, Rudd BD, Smith NL. Fate-mapping mice: new tools and technology for immune discovery. Trends Immunol 2022; 43:195-209. [PMID: 35094945 PMCID: PMC8882138 DOI: 10.1016/j.it.2022.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 12/20/2022]
Abstract
The fate-mapping mouse has become an essential tool in the immunologist's toolbox. Although traditionally used by developmental biologists to trace the origins of cells, immunologists are turning to fate-mapping to better understand the development and function of immune cells. Thus, an expansion in the variety of fate-mapping mouse models has occurred to answer fundamental questions about the immune system. These models are also being combined with new genetic tools to study cancer, infection, and autoimmunity. In this review, we summarize different types of fate-mapping mice and describe emerging technologies that might allow immunologists to leverage this valuable tool and expand our functional knowledge of the immune system.
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Affiliation(s)
- Scarlett E Lee
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY 14850, USA
| | - Brian D Rudd
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY 14850, USA
| | - Norah L Smith
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY 14850, USA.
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22
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Weijts B, Yvernogeau L, Robin C. Recent Advances in Developmental Hematopoiesis: Diving Deeper With New Technologies. Front Immunol 2021; 12:790379. [PMID: 34899758 PMCID: PMC8652083 DOI: 10.3389/fimmu.2021.790379] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 10/28/2021] [Indexed: 12/15/2022] Open
Abstract
The journey of a hematopoietic stem cell (HSC) involves the passage through successive anatomical sites where HSCs are in direct contact with their surrounding microenvironment, also known as niche. These spatial and temporal cellular interactions throughout development are required for the acquisition of stem cell properties, and for maintaining the HSC pool through balancing self-renewal, quiescence and lineage commitment. Understanding the context and consequences of these interactions will be imperative for our understanding of HSC biology and will lead to the improvement of in vitro production of HSCs for clinical purposes. The aorta-gonad-mesonephros (AGM) region is in this light of particular interest since this is the cradle of HSC emergence during the embryonic development of all vertebrate species. In this review, we will focus on the developmental origin of HSCs and will discuss the novel technological approaches and recent progress made to identify the cellular composition of the HSC supportive niche and the underlying molecular events occurring in the AGM region.
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Affiliation(s)
- Bart Weijts
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) & University Medical Center Utrecht, Utrecht, Netherlands
| | - Laurent Yvernogeau
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) & University Medical Center Utrecht, Utrecht, Netherlands
| | - Catherine Robin
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) & University Medical Center Utrecht, Utrecht, Netherlands
- Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, Netherlands
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23
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Dignum T, Varnum-Finney B, Srivatsan SR, Dozono S, Waltner O, Heck AM, Ishida T, Nourigat-McKay C, Jackson DL, Rafii S, Trapnell C, Bernstein ID, Hadland B. Multipotent progenitors and hematopoietic stem cells arise independently from hemogenic endothelium in the mouse embryo. Cell Rep 2021; 36:109675. [PMID: 34525376 PMCID: PMC8478150 DOI: 10.1016/j.celrep.2021.109675] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/28/2021] [Accepted: 08/16/2021] [Indexed: 12/24/2022] Open
Abstract
During embryogenesis, waves of hematopoietic progenitors develop from hemogenic endothelium (HE) prior to the emergence of self-renewing hematopoietic stem cells (HSCs). Although previous studies have shown that yolk-sac-derived erythromyeloid progenitors and HSCs emerge from distinct populations of HE, it remains unknown whether the earliest lymphoid-competent progenitors, multipotent progenitors, and HSCs originate from common HE. In this study, we demonstrate by clonal assays and single-cell transcriptomics that rare HE with functional HSC potential in the early murine embryo are distinct from more abundant HE with multilineage hematopoietic potential that fail to generate HSCs. Specifically, HSC-competent HE are characterized by expression of CXCR4 surface marker and by higher expression of genes tied to arterial programs regulating HSC dormancy and self-renewal. Taken together, these findings suggest a revised model of developmental hematopoiesis in which the initial populations of multipotent progenitors and HSCs arise independently from HE with distinct phenotypic and transcriptional properties.
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Affiliation(s)
- Tessa Dignum
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Barbara Varnum-Finney
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Sanjay R Srivatsan
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA 98105, USA
| | - Stacey Dozono
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Olivia Waltner
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Adam M Heck
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Takashi Ishida
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Cynthia Nourigat-McKay
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Dana L Jackson
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA 98105, USA
| | - Shahin Rafii
- Department of Genetic Medicine, Ansary Stem Cell Institute, Howard Hughes Medical Institute, Weill Cornell Medical College, New York, NY 10021, USA
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA 98105, USA
| | - Irwin D Bernstein
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98105, USA
| | - Brandon Hadland
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98105, USA.
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24
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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: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [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.
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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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