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Li F, Zhu Y, Wang T, Tang J, Huang Y, Gu J, Mai Y, Wang M, Zhang Z, Ning J, Kang B, Wang J, Zhou T, Cui Y, Pan G. Characterization of gene regulatory networks underlying key properties in human hematopoietic stem cell ontogeny. CELL REGENERATION (LONDON, ENGLAND) 2024; 13:9. [PMID: 38630195 PMCID: PMC11024070 DOI: 10.1186/s13619-024-00192-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/23/2024] [Indexed: 04/20/2024]
Abstract
Human hematopoiesis starts at early yolk sac and undergoes site- and stage-specific changes over development. The intrinsic mechanism underlying property changes in hematopoiesis ontogeny remains poorly understood. Here, we analyzed single-cell transcriptome of human primary hematopoietic stem/progenitor cells (HSPCs) at different developmental stages, including yolk-sac (YS), AGM, fetal liver (FL), umbilical cord blood (UCB) and adult peripheral blood (PB) mobilized HSPCs. These stage-specific HSPCs display differential intrinsic properties, such as metabolism, self-renewal, differentiating potentialities etc. We then generated highly co-related gene regulatory network (GRNs) modules underlying the differential HSC key properties. Particularly, we identified GRNs and key regulators controlling lymphoid potentiality, self-renewal as well as aerobic respiration in human HSCs. Introducing selected regulators promotes key HSC functions in HSPCs derived from human pluripotent stem cells. Therefore, GRNs underlying key intrinsic properties of human HSCs provide a valuable guide to generate fully functional HSCs in vitro.
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Affiliation(s)
- Fei Li
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Yanling Zhu
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China.
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, GIBH-CUHK Joint Research Laboratory On Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
| | - Tianyu Wang
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, GIBH-CUHK Joint Research Laboratory On Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Jun Tang
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
| | - Yuhua Huang
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Jiaming Gu
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Yuchan Mai
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Mingquan Wang
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, GIBH-CUHK Joint Research Laboratory On Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Zhishuai Zhang
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Jiaying Ning
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Baoqiang Kang
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Junwei Wang
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Tiancheng Zhou
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Yazhou Cui
- Key Lab for Rare & Uncommon Diseases of Shandong Province, Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China
| | - Guangjin Pan
- Key Laboratory of Immune Response and Immunotherapy, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, 510530, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, China.
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, Center for Cell Lineage and Cell Therapy, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, GIBH-CUHK Joint Research Laboratory On Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
- Key Lab for Rare & Uncommon Diseases of Shandong Province, Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, 250117, Shandong, China.
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Ling RE, Cross JW, Roy A. Aberrant stem cell and developmental programs in pediatric leukemia. Front Cell Dev Biol 2024; 12:1372899. [PMID: 38601080 PMCID: PMC11004259 DOI: 10.3389/fcell.2024.1372899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/11/2024] [Indexed: 04/12/2024] Open
Abstract
Hematopoiesis is a finely orchestrated process, whereby hematopoietic stem cells give rise to all mature blood cells. Crucially, they maintain the ability to self-renew and/or differentiate to replenish downstream progeny. This process starts at an embryonic stage and continues throughout the human lifespan. Blood cancers such as leukemia occur when normal hematopoiesis is disrupted, leading to uncontrolled proliferation and a block in differentiation of progenitors of a particular lineage (myeloid or lymphoid). Although normal stem cell programs are crucial for tissue homeostasis, these can be co-opted in many cancers, including leukemia. Myeloid or lymphoid leukemias often display stem cell-like properties that not only allow proliferation and survival of leukemic blasts but also enable them to escape treatments currently employed to treat patients. In addition, some leukemias, especially in children, have a fetal stem cell profile, which may reflect the developmental origins of the disease. Aberrant fetal stem cell programs necessary for leukemia maintenance are particularly attractive therapeutic targets. Understanding how hijacked stem cell programs lead to aberrant gene expression in place and time, and drive the biology of leukemia, will help us develop the best treatment strategies for patients.
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Affiliation(s)
- Rebecca E. Ling
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Joe W. Cross
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Anindita Roy
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Haematology, Great Ormond Street Hospital for Children, London, United Kingdom
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Collins A, Swann JW, Proven MA, Patel CM, Mitchell CA, Kasbekar M, Dellorusso PV, Passegué E. Maternal inflammation regulates fetal emergency myelopoiesis. Cell 2024; 187:1402-1421.e21. [PMID: 38428422 PMCID: PMC10954379 DOI: 10.1016/j.cell.2024.02.002] [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: 09/15/2023] [Revised: 12/03/2023] [Accepted: 02/02/2024] [Indexed: 03/03/2024]
Abstract
Neonates are highly susceptible to inflammation and infection. Here, we investigate how late fetal liver (FL) mouse hematopoietic stem and progenitor cells (HSPCs) respond to inflammation, testing the hypothesis that deficits in the engagement of emergency myelopoiesis (EM) pathways limit neutrophil output and contribute to perinatal neutropenia. We show that fetal HSPCs have limited production of myeloid cells at steady state and fail to activate a classical adult-like EM transcriptional program. Moreover, we find that fetal HSPCs can respond to EM-inducing inflammatory stimuli in vitro but are restricted by maternal anti-inflammatory factors, primarily interleukin-10 (IL-10), from activating EM pathways in utero. Accordingly, we demonstrate that the loss of maternal IL-10 restores EM activation in fetal HSPCs but at the cost of fetal demise. These results reveal the evolutionary trade-off inherent in maternal anti-inflammatory responses that maintain pregnancy but render the fetus unresponsive to EM activation signals and susceptible to infection.
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Affiliation(s)
- Amélie Collins
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Division of Neonatology-Perinatology, Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA.
| | - James W Swann
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Melissa A Proven
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Chandani M Patel
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Carl A Mitchell
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Monica Kasbekar
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Division of Hematology/Oncology, Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Paul V Dellorusso
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Emmanuelle Passegué
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA.
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Wang S, Han J, Huang J, Islam K, Shi Y, Zhou Y, Kim D, Zhou J, Lian Z, Liu Y, Huang J. Deep learning-based predictive classification of functional subpopulations of hematopoietic stem cells and multipotent progenitors. Stem Cell Res Ther 2024; 15:74. [PMID: 38475857 PMCID: PMC10935795 DOI: 10.1186/s13287-024-03682-8] [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] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Hematopoietic stem cells (HSCs) and multipotent progenitors (MPPs) play a pivotal role in maintaining lifelong hematopoiesis. The distinction between stem cells and other progenitors, as well as the assessment of their functions, has long been a central focus in stem cell research. In recent years, deep learning has emerged as a powerful tool for cell image analysis and classification/prediction. METHODS In this study, we explored the feasibility of employing deep learning techniques to differentiate murine HSCs and MPPs based solely on their morphology, as observed through light microscopy (DIC) images. RESULTS After rigorous training and validation using extensive image datasets, we successfully developed a three-class classifier, referred to as the LSM model, capable of reliably distinguishing long-term HSCs, short-term HSCs, and MPPs. The LSM model extracts intrinsic morphological features unique to different cell types, irrespective of the methods used for cell identification and isolation, such as surface markers or intracellular GFP markers. Furthermore, employing the same deep learning framework, we created a two-class classifier that effectively discriminates between aged HSCs and young HSCs. This discovery is particularly significant as both cell types share identical surface markers yet serve distinct functions. This classifier holds the potential to offer a novel, rapid, and efficient means of assessing the functional states of HSCs, thus obviating the need for time-consuming transplantation experiments. CONCLUSION Our study represents the pioneering use of deep learning to differentiate HSCs and MPPs under steady-state conditions. This novel and robust deep learning-based platform will provide a basis for the future development of a new generation stem cell identification and separation system. It may also provide new insight into the molecular mechanisms underlying stem cell self-renewal.
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Affiliation(s)
- Shen Wang
- Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA, USA
| | - Jianzhong Han
- Coriell Institute for Medical Research, Camden, NJ, USA
| | - Jingru Huang
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences, Medical College of Fudan University, Chinese Academy of Medical Sciences, Shanghai, People's Republic of China
| | - Khayrul Islam
- Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA, USA
| | - Yuheng Shi
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences, Medical College of Fudan University, Chinese Academy of Medical Sciences, Shanghai, People's Republic of China
| | - Yuyuan Zhou
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA
| | - Dongwook Kim
- Coriell Institute for Medical Research, Camden, NJ, USA
| | - Jane Zhou
- Health and Human Biology, Brown University, Providence, RI, USA
| | - Zhaorui Lian
- Coriell Institute for Medical Research, Camden, NJ, USA
| | - Yaling Liu
- Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA, USA.
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA.
| | - Jian Huang
- Coriell Institute for Medical Research, Camden, NJ, USA.
- Cooper Medical School of Rowan University, Camden, NJ, USA.
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA.
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Waraky A, Östlund A, Nilsson T, Weichenhan D, Lutsik P, Bähr M, Hey J, Tunali G, Adamsson J, Jacobsson S, Morsy MHA, Li S, Fogelstrand L, Plass C, Palmqvist L. Aberrant MNX1 expression associated with t(7;12)(q36;p13) pediatric acute myeloid leukemia induces the disease through altering histone methylation. Haematologica 2024; 109:725-739. [PMID: 37317878 PMCID: PMC10905087 DOI: 10.3324/haematol.2022.282255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 06/05/2023] [Indexed: 06/16/2023] Open
Abstract
Certain subtypes of acute myeloid leukemia (AML) in children have inferior outcome, such as AML with translocation t(7;12)(q36;p13) leading to an MNX1::ETV6 fusion along with high expression of MNX1. We have identified the transforming event in this AML and possible ways of treatment. Retroviral expression of MNX1 was able to induce AML in mice, with similar gene expression and pathway enrichment to t(7;12) AML patient data. Importantly, this leukemia was only induced in immune incompetent mice using fetal but not adult hematopoietic stem and progenitor cells. The restriction in transforming capacity to cells from fetal liver is in alignment with t(7;12)(q36;p13) AML being mostly seen in infants. Expression of MNX1 led to increased histone 3 lysine 4 mono-, di- and trimethylation, reduction in H3K27me3, accompanied with changes in genome-wide chromatin accessibility and genome expression, likely mediated through MNX1 interaction with the methionine cycle and methyltransferases. MNX1 expression increased DNA damage, depletion of the Lin-/Sca1+/c-Kit+ population and skewing toward the myeloid lineage. These effects, together with leukemia development, were prevented by pre-treatment with the S-adenosylmethionine analog Sinefungin. In conclusion, we have shown the importance of MNX1 in development of AML with t(7;12), supporting a rationale for targeting MNX1 and downstream pathways.
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Affiliation(s)
- Ahmed Waraky
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, and; Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg
| | - Anders Östlund
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg
| | - Tina Nilsson
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg
| | - Dieter Weichenhan
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg
| | - Pavlo Lutsik
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg
| | - Marion Bähr
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg
| | - Joschka Hey
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg
| | - Gürcan Tunali
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg
| | - Jenni Adamsson
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg
| | - Susanna Jacobsson
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg
| | | | - Susann Li
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg
| | - Linda Fogelstrand
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, and; Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg
| | - Christoph Plass
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg
| | - Lars Palmqvist
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, and; Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg.
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Zhu X, Zhang W, Zhang Y, Wang Y, Hu H, Li J, Zhou Y, Han T, Huang D. Pegfilgrastim on febrile neutropenia in pediatric and adolescent cancer patients: a systematic review and meta-analysis. HEMATOLOGY (AMSTERDAM, NETHERLANDS) 2023; 28:2172292. [PMID: 36719297 DOI: 10.1080/16078454.2023.2172292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVES There is no meta-analysis about the effects of pegfilgrastim on the occurrence of febrile neutropenia (FN) in pediatric/adolescent cancer patients. The study explored the efficacy of prophylactic pegfilgrastim in preventing FN in children/adolescents with cancer. METHODS PubMed, Embase, and the Cochrane Library were searched for studies published before April 7, 2020. The primary outcome was the rate of FN. Effect size (ES) and odds ratio (OR) with 95% confidence intervals (CIs) were used to evaluate the outcome. The ES represented the rate of FN, and the STATA 'metaprop' command was used to synthesize the rate. RESULTS Eight studies were included, comprising 167 patients and 550 courses of treatment. There was no difference between pegfilgrastim and filgrastim for the rate of FN in children receiving chemotherapy (OR = 0.68, 95% CI: 0.20-2.23, P = 0.520). In patients receiving pegfilgrastim, the rate of FN was 25.6% (95% CI: 14.9%-36.3%), the rate of grade 4 FN was 38.3% (95% CI: 19.2%-59.5%), the rate of severe neutropenia (SN) was 40.5% (95% CI: 35.1%-46.1%), and the rate of treatment delays due to FN was 4.8% (95% CI: 0.8%-11.3%). DISCUSSION The number of studies that could be included was small; therefore, a specific type of cancer or a specific treatment could be studied. Heterogeneity was high. CONCLUSION There was no difference between pegfilgrastim and filgrastim for the rate of FN. The use of pegfilgrastim was still associated with rates of FN, grade 4 FN, severe neutropenia, and treatment delays due to FN in pediatric cancer patients.
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Affiliation(s)
- Xia Zhu
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Weiling Zhang
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Yi Zhang
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Yizhuo Wang
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Huimin Hu
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Jing Li
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Yan Zhou
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Tao Han
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
| | - Dongsheng Huang
- Department of Pediatrics, Beijing Tongren Hospital Capital Medical University, Beijing, People's Republic of China
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Wang S, Han J, Huang J, Islam K, Shi Y, Zhou Y, Kim D, Zhou J, Lian Z, Liu Y, Huang J. Deep learning-based predictive classification of functional subpopulations of hematopoietic stem cells and multipotent progenitors. RESEARCH SQUARE 2023:rs.3.rs-3332530. [PMID: 38014055 PMCID: PMC10680918 DOI: 10.21203/rs.3.rs-3332530/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Background Hematopoietic stem cells (HSCs) and multipotent progenitors (MPPs) play a pivotal role in maintaining lifelong hematopoiesis. The distinction between stem cells and other progenitors, as well as the assessment of their functions, has long been a central focus in stem cell research. In recent years, deep learning has emerged as a powerful tool for cell image analysis and classification/prediction. Methods In this study, we explored the feasibility of employing deep learning techniques to differentiate murine HSCs and MPPs based solely on their morphology, as observed through light microscopy (DIC) images. Results After rigorous training and validation using extensive image datasets, we successfully developed a three-class classifier, referred to as the LSM model, capable of reliably distinguishing long-term HSCs (LT-HSCs), short-term HSCs (ST-HSCs), and MPPs. The LSM model extracts intrinsic morphological features unique to different cell types, irrespective of the methods used for cell identification and isolation, such as surface markers or intracellular GFP markers. Furthermore, employing the same deep learning framework, we created a two-class classifier that effectively discriminates between aged HSCs and young HSCs. This discovery is particularly significant as both cell types share identical surface markers yet serve distinct functions. This classifier holds the potential to offer a novel, rapid, and efficient means of assessing the functional states of HSCs, thus obviating the need for time-consuming transplantation experiments. Conclusion Our study represents the pioneering use of deep learning to differentiate HSCs and MPPs under steady-state conditions. With ongoing advancements in model algorithms and their integration into various imaging systems, deep learning stands poised to become an invaluable tool, significantly impacting stem cell research.
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Affiliation(s)
- Shen Wang
- Lehigh University Department of Mechanical Engineering and Mechanics
| | | | | | - Khayrul Islam
- Lehigh University Department of Mechanical Engineering and Mechanics
| | - Yuheng Shi
- Shanghai Medical College of Fudan University: Fudan University School of Basic Medical Sciences
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8
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Strullu M, Leblanc T, Lainey E. [Juvenile myelomonocytic leukemia and pediatric myelodysplastic syndromes]. Bull Cancer 2023; 110:1183-1195. [PMID: 37453833 DOI: 10.1016/j.bulcan.2023.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 07/18/2023]
Abstract
Juvenile myelomonocytic leukemia (JMML) and myelodysplastic syndromes (MDS) of children are rare and aggressive diseases. They both have the particularity of being very frequently associated with an underlying predisposition syndrome, which must be systematically investigated by meticulous clinical exam completed by molecular analysis on fibroblasts, in order to guarantee the best therapeutic management. New generation sequencing techniques have made it possible to better define the landscape of constitutional predisposing pathologies, to understand the clonal evolution that leads to the development of hematological malignancies and to identify new prognostic markers. In these two diseases, the only curative treatment is allogeneic hematopoietic stem cell transplantation, for which the appropriate timeframe, the type of donor and the conditioning must be decided in consultation with the expert teams in each entity.
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Affiliation(s)
- Marion Strullu
- AP-HP, hôpital Robert-Debré, service d'hémato-immunologie pédiatrique, Paris, France; Université Paris-Cité, institut universitaire d'hématologie, Inserm UMR1131, Paris, France.
| | - Thierry Leblanc
- AP-HP, hôpital Robert-Debré, service d'hémato-immunologie pédiatrique, Paris, France
| | - Elodie Lainey
- Université Paris-Cité, institut universitaire d'hématologie, Inserm UMR1131, Paris, France; AP-HP, hôpital Robert-Debré, service d'hématologie biologique, Paris, France
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9
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Collins A, Swann JW, Proven MA, Patel CM, Mitchell CA, Kasbekar M, Dellorusso PV, Passegué E. Maternal IL-10 restricts fetal emergency myelopoiesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.13.557548. [PMID: 37745377 PMCID: PMC10515963 DOI: 10.1101/2023.09.13.557548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Neonates, in contrast to adults, are highly susceptible to inflammation and infection. Here we investigate how late fetal liver (FL) mouse hematopoietic stem and progenitor cells (HSPC) respond to inflammation, testing the hypothesis that deficits in engagement of emergency myelopoiesis (EM) pathways limit neutrophil output and contribute to perinatal neutropenia. We show that despite similar molecular wiring as adults, fetal HSPCs have limited production of myeloid cells at steady state and fail to activate a classical EM transcriptional program. Moreover, we find that fetal HSPCs are capable of responding to EM-inducing inflammatory stimuli in vitro , but are restricted by maternal anti-inflammatory factors, primarily interleukin-10 (IL-10), from activating EM pathways in utero . Accordingly, we demonstrate that loss of maternal IL-10 restores EM activation in fetal HSPCs but at the cost of premature parturition. These results reveal the evolutionary trade-off inherent in maternal anti-inflammatory responses that maintain pregnancy but render the fetus unresponsive to EM activation signals and susceptible to infection. HIGHLIGHTS The structure of the HSPC compartment is conserved from late fetal to adult life.Fetal HSPCs have diminished steady-state myeloid cell production compared to adult.Fetal HSPCs are restricted from engaging in emergency myelopoiesis by maternal IL-10.Restriction of emergency myelopoiesis may explain neutropenia in septic neonates. eTOC BLURB Fetal hematopoietic stem and progenitor cells are restricted from activating emergency myelopoiesis pathways by maternal IL-10, resulting in inadequate myeloid cell production in response to inflammatory challenges and contributing to neonatal neutropenia.
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10
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Kobayashi M, Yoshimoto M. Multiple waves of fetal-derived immune cells constitute adult immune system. Immunol Rev 2023; 315:11-30. [PMID: 36929134 PMCID: PMC10754384 DOI: 10.1111/imr.13192] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
It has been over three decades since Drs. Herzenberg and Herzenberg proposed the layered immune system hypothesis, suggesting that different types of stem cells with distinct hematopoietic potential produce specific immune cells. This layering of immune system development is now supported by recent studies showing the presence of fetal-derived immune cells that function in adults. It has been shown that various immune cells arise at different embryonic ages via multiple waves of hematopoiesis from special endothelial cells (ECs), referred to as hemogenic ECs. However, it remains unknown whether these fetal-derived immune cells are produced by hematopoietic stem cells (HSCs) during the fetal to neonatal period. To address this question, many advanced tools have been used, including lineage-tracing mouse models, cellular barcoding techniques, clonal assays, and transplantation assays at the single-cell level. In this review, we will review the history of the search for the origins of HSCs, B-1a progenitors, and mast cells in the mouse embryo. HSCs can produce both B-1a and mast cells within a very limited time window, and this ability declines after embryonic day (E) 14.5. Furthermore, the latest data have revealed that HSC-independent adaptive immune cells exist in adult mice, which implies more complicated developmental pathways of immune cells. We propose revised road maps of immune cell development.
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Affiliation(s)
- Michihiro Kobayashi
- Center for Stem Cell and Regenerative Medicine, Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Momoko Yoshimoto
- Center for Stem Cell and Regenerative Medicine, Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
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11
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Jardine L, Schim van der Loeff I, Haq IJ, Sproat TDR. Gestational Development of the Human Immune System. Immunol Allergy Clin North Am 2023; 43:1-15. [PMID: 36410996 DOI: 10.1016/j.iac.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Building an immune system is a monumental task critical to the survival of the fetus and newborn. A functional fetal immune system must complement the maternal immune system in handling in utero infection; abstain from damaging non-self-reactions that would compromise the materno-fetal interface; mobilize in response to infection and equip mucosal tissues for pathogen exposure at birth. There is growing appreciation that immune cells also have noncanonical roles in development and specifically may contribute to tissue morphogenesis. In this review we detail how hematopoietic and lymphoid organs jointly establish cellular constituents of the immune system; how these constituents are organized in 2 mucosal sites-gut and lung-where early life immune function has long-term consequences for health; and how exemplar diseases of prematurity and inborn errors of immunity reveal dominant pathways in prenatal immunity.
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Affiliation(s)
- Laura Jardine
- Biosciences Institute, Newcastle University, Faculty of Medical Sciences, Newcastle Upon Tyne NE2 4HH, United Kingdom; Haematology Department, Freeman Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom.
| | - Ina Schim van der Loeff
- Translational and Clinical Research Institute, Newcastle University, Faculty of Medical Sciences, Newcastle Upon Tyne NE2 4HH, United Kingdom
| | - Iram J Haq
- Translational and Clinical Research Institute, Newcastle University, Faculty of Medical Sciences, Newcastle Upon Tyne NE2 4HH, United Kingdom; Department of Paediatric Respiratory Medicine, Great North Children's Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom
| | - Thomas D R Sproat
- Neonatal Unit, Royal Victoria Infirmary, Newcastle Hospitals NHS Foundation Trust, Richardson Road, Newcastle Upon Tyne NE1 4LP, United Kingdom
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12
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Åkerstrand H, Boldrin E, Montano G, Vanhee S, Olsson K, Krausse N, Vergani S, Cieśla M, Bellodi C, Yuan J. Enhanced protein synthesis is a defining requirement for neonatal B cell development. Front Immunol 2023; 14:1130930. [PMID: 37138883 PMCID: PMC10149930 DOI: 10.3389/fimmu.2023.1130930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 03/21/2023] [Indexed: 05/05/2023] Open
Abstract
The LIN28B RNA binding protein exhibits an ontogenically restricted expression pattern and is a key molecular regulator of fetal and neonatal B lymphopoiesis. It enhances the positive selection of CD5+ immature B cells early in life through amplifying the CD19/PI3K/c-MYC pathway and is sufficient to reinitiate self-reactive B-1a cell output when ectopically expressed in the adult. In this study, interactome analysis in primary B cell precursors showed direct binding by LIN28B to numerous ribosomal protein transcripts, consistent with a regulatory role in cellular protein synthesis. Induction of LIN28B expression in the adult setting is sufficient to promote enhanced protein synthesis during the small Pre-B and immature B cell stages, but not during the Pro-B cell stage. This stage dependent effect was dictated by IL-7 mediated signaling, which masked the impact of LIN28B through an overpowering stimulation on the c-MYC/protein synthesis axis in Pro-B cells. Importantly, elevated protein synthesis was a distinguishing feature between neonatal and adult B cell development that was critically supported by endogenous Lin28b expression early in life. Finally, we used a ribosomal hypomorphic mouse model to demonstrate that subdued protein synthesis is specifically detrimental for neonatal B lymphopoiesis and the output of B-1a cells, without affecting B cell development in the adult. Taken together, we identify elevated protein synthesis as a defining requirement for early-life B cell development that critically depends on Lin28b. Our findings offer new mechanistic insights into the layered formation of the complex adult B cell repertoire.
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Affiliation(s)
- Hugo Åkerstrand
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Elena Boldrin
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Giorgia Montano
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Stijn Vanhee
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Karin Olsson
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Niklas Krausse
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Stefano Vergani
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Maciej Cieśla
- RNA and Stem Cell Biology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Cristian Bellodi
- RNA and Stem Cell Biology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Joan Yuan
- Developmental Immunology Unit, Department of Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
- *Correspondence: Joan Yuan,
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13
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Alkhani A, Korsholm C, Levy CS, Mohamedaly S, Duwaerts CC, Pietras EM, Nijagal A. Neonatal Hepatic Myeloid Progenitors Expand and Propagate Liver Injury in Mice. J Clin Med 2023; 12:jcm12010337. [PMID: 36615137 PMCID: PMC9821039 DOI: 10.3390/jcm12010337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/24/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Biliary atresia (BA) is a progressive pediatric inflammatory disease of the liver that leads to cirrhosis and necessitates liver transplantation. The rapid progression from liver injury to liver failure in children with BA suggests that factors specific to the perinatal hepatic environment are important for disease propagation. Hematopoietic stem and progenitor cells (HSPCs) reside in the fetal liver and are known to serve as central hubs of inflammation. We hypothesized that HSPCs are critical for the propagation of perinatal liver injury (PLI). METHODS Newborn BALB/c mice were injected with rhesus rotavirus (RRV) to induce PLI or with PBS as control. Livers were compared using histology and flow cytometry. To determine the effects of HSPCs on PLI, RRV-infected neonatal mice were administered anti-CD47 and anti-CD117 to deplete HSPCs. RESULTS PLI significantly increased the number of common myeloid progenitors and the number of CD34+ hematopoietic progenitors. Elimination of HSPCs through antibody-mediated myeloablation rescued animals from PLI and significantly increased survival (RRV+isotype control 36.4% vs. RRV+myeloablation 77.8%, Chi-test = 0.003). CONCLUSIONS HSPCs expand as a result of RRV infection and propagate PLI. Targeting of HSPCs may be useful in preventing and treating neonatal inflammatory diseases of the liver such as BA.
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Affiliation(s)
- Anas Alkhani
- Department of Surgery, University of California, San Francisco, CA 94143, USA
- The Liver Center, University of California, San Francisco, CA 94143, USA
| | - Cathrine Korsholm
- Department of Surgery, University of California, San Francisco, CA 94143, USA
- The Liver Center, University of California, San Francisco, CA 94143, USA
- Department of Comparative Pediatrics and Nutrition, University of Copenhagen, 1870 Frederiksberg C, Denmark
| | - Claire S. Levy
- Department of Surgery, University of California, San Francisco, CA 94143, USA
- The Liver Center, University of California, San Francisco, CA 94143, USA
| | - Sarah Mohamedaly
- Department of Surgery, University of California, San Francisco, CA 94143, USA
- The Liver Center, University of California, San Francisco, CA 94143, USA
| | - Caroline C. Duwaerts
- The Liver Center, University of California, San Francisco, CA 94143, USA
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Eric M. Pietras
- Division of Hematology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Amar Nijagal
- Department of Surgery, University of California, San Francisco, CA 94143, USA
- The Liver Center, University of California, San Francisco, CA 94143, USA
- The Pediatric Liver Center, UCSF Benioff Childrens’ Hospital, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine, University of California, San Francisco, CA 94143, USA
- Correspondence: ; Tel.: +1-415-476-4086
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14
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Biswas A, Singh SK, Kartha GM, Khurana S. Immuno-localization of definitive hematopoietic stem cells in the vascular niche of mouse fetal liver. STAR Protoc 2022; 3:101580. [PMID: 36223268 PMCID: PMC9576628 DOI: 10.1016/j.xpro.2022.101580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 04/27/2022] [Accepted: 06/28/2022] [Indexed: 11/27/2022] Open
Abstract
Understanding the murine fetal liver (FL) hematopoietic microenvironment, which promotes HSC proliferation, warrants identifying innate relationships between stem cells and the niche. An inclusive study of these cell associations remains elusive. Here, we optimized a protocol to immunolabel HSCs alongside the FL vasculature, a promising niche component. We provide a comprehensive plan from tissue processing, immunohistochemistry, and confocal microscopy, to three-dimensional distance analyses between HSCs and vasculature. This technique can be adapted for achieving congruous outcomes for other cell types. For complete details on the use and execution of this protocol, please refer to Biswas et al. (2020).
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Affiliation(s)
- Atreyi Biswas
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India.
| | - Shailendra Kumar Singh
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India
| | - Gayathri M Kartha
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India
| | - Satish Khurana
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India.
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15
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Morita R, Fujiwara H. Tracing the developmental origin of tissue stem cells. Dev Growth Differ 2022; 64:566-576. [PMID: 36217609 PMCID: PMC10091985 DOI: 10.1111/dgd.12816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 09/02/2022] [Accepted: 09/24/2022] [Indexed: 12/31/2022]
Abstract
Tissue stem cells are vital for organ homeostasis and regeneration owing to their ability to self-renew and differentiate into the various cell types that constitute organ tissue. These stem cells are formed during complex and dynamic organ development, necessitating spatial-temporal coordination of morphogenetic events and cell fate specification during this process. In recent years, technological advances have enabled the tracing of the cellular dynamics, states, and lineages of individual cells over time in relation to tissue morphological changes. These dynamic data have not only revealed the origin of tissue stem cells in various organs but have also led to an understanding of the molecular, cellular, and biophysical bases of tissue stem cell formation. Herein, we summarize recent findings on the developmental origin of tissue stem cells in the hair follicles, intestines, brain, skeletal muscles, and hematopoietic system, and further discuss how stem cell fate specification is coordinated with tissue topology.
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Affiliation(s)
- Ritsuko Morita
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan
| | - Hironobu Fujiwara
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan
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16
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Bain FM, Che JLC, Jassinskaja M, Kent DG. Lessons from early life: understanding development to expand stem cells and treat cancers. Development 2022; 149:277217. [PMID: 36217963 PMCID: PMC9724165 DOI: 10.1242/dev.201070] [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] [Indexed: 01/25/2023]
Abstract
Haematopoietic stem cell (HSC) self-renewal is a process that is essential for the development and homeostasis of the blood system. Self-renewal expansion divisions, which create two daughter HSCs from a single parent HSC, can be harnessed to create large numbers of HSCs for a wide range of cell and gene therapies, but the same process is also a driver of the abnormal expansion of HSCs in diseases such as cancer. Although HSCs are first produced during early embryonic development, the key stage and location where they undergo maximal expansion is in the foetal liver, making this tissue a rich source of data for deciphering the molecules driving HSC self-renewal. Another equally interesting stage occurs post-birth, several weeks after HSCs have migrated to the bone marrow, when HSCs undergo a developmental switch and adopt a more dormant state. Characterising these transition points during development is key, both for understanding the evolution of haematological malignancies and for developing methods to promote HSC expansion. In this Spotlight article, we provide an overview of some of the key insights that studying HSC development have brought to the fields of HSC expansion and translational medicine, many of which set the stage for the next big breakthroughs in the field.
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Affiliation(s)
- Fiona M. Bain
- Department of Biology, York Biomedical Research Institute, University of York, York, YO10 5DD, UK
| | - James L. C. Che
- Department of Biology, York Biomedical Research Institute, University of York, York, YO10 5DD, UK
| | - Maria Jassinskaja
- Department of Biology, York Biomedical Research Institute, University of York, York, YO10 5DD, UK
| | - David G. Kent
- Department of Biology, York Biomedical Research Institute, University of York, York, YO10 5DD, UK
- Author for correspondence ()
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17
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Deng ZH, Zhong J, Jiang HL, Jeong HW, Chen JW, Shu YH, Tan M, Adams RH, Xie KP, Chen Q, Liu Y. Antipsychotic drugs induce vascular defects in hematopoietic organs. FASEB J 2022; 36:e22538. [PMID: 36065631 DOI: 10.1096/fj.202200862r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 11/11/2022]
Abstract
Antipsychotic agents are clinically utilized to treat schizophrenia and other mental disorders. These drugs induce neurological and metabolic side effects, but their influence on blood vessels remains largely unknown. Here, we show that haloperidol, one of the most frequently prescribed antipsychotic agents, induces vascular defects in bone marrow. Acute haloperidol treatment results in vascular dilation that is specific to hematopoietic organs. This vessel dilation is associated with disruption of hematopoiesis and hematopoietic stem/progenitor cells (HSPCs), both of which are reversible after haloperidol withdrawal. Mechanistically, haloperidol treatment blocked the secretion of vascular endothelial growth factor A (VEGF-A) from HSPCs. Genetic blockade of VEGF-A secretion from hematopoietic cells or inhibition of VEGFR2 in endothelial cells result in similar vessel dilation in bone marrow during regeneration after irradiation and transplantation. Conversely, VEGF-A gain of function rescues the bone marrow vascular defects induced by haloperidol treatment and irradiation. Our work reveals an unknown effect of antipsychotic agents on the vasculature and hematopoiesis with potential implications for drug application in clinic.
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Affiliation(s)
- Zhao-Hua Deng
- Center for cell lineage and development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,China-New Zealand Joint Laboratory on Biomedicine and Health, Guangzhou, China
| | - Jing Zhong
- Center for cell lineage and development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,China-New Zealand Joint Laboratory on Biomedicine and Health, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hai-Lin Jiang
- Department of Pathology and Center for Pancreatic Cancer Research, School of Medicine, South China University of Technology, Guangzhou, China
| | - Hyun-Woo Jeong
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Faculty of Medicine, University of Münster, Münster, Germany
| | - Jian-Wei Chen
- Center for cell lineage and development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,China-New Zealand Joint Laboratory on Biomedicine and Health, Guangzhou, China.,Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Ya-Hai Shu
- Center for cell lineage and development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,China-New Zealand Joint Laboratory on Biomedicine and Health, Guangzhou, China
| | - Ming Tan
- Center for cell lineage and development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,China-New Zealand Joint Laboratory on Biomedicine and Health, Guangzhou, China
| | - Ralf H Adams
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Faculty of Medicine, University of Münster, Münster, Germany
| | - Ke-Ping Xie
- Department of Pathology and Center for Pancreatic Cancer Research, School of Medicine, South China University of Technology, Guangzhou, China
| | - Qi Chen
- Center for cell lineage and development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine
- GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,China-New Zealand Joint Laboratory on Biomedicine and Health, Guangzhou, China.,Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Faculty of Medicine, University of Münster, Münster, Germany.,Biomedical Sciences College & Shandong Medicinal Biotechnology Centre
- NHC Key Laboratory of biotechnology drugs
- Key Lab for Rare & Uncommon Diseases of Shandong Province, Shandong First Medical University, Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yang Liu
- Department of Pathology and Center for Pancreatic Cancer Research, School of Medicine, South China University of Technology, Guangzhou, China.,Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Faculty of Medicine, University of Münster, Münster, Germany
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18
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Emmrich S, Trapp A, Tolibzoda Zakusilo F, Straight ME, Ying AK, Tyshkovskiy A, Mariotti M, Gray S, Zhang Z, Drage MG, Takasugi M, Klusmann J, Gladyshev VN, Seluanov A, Gorbunova V. Characterization of naked mole-rat hematopoiesis reveals unique stem and progenitor cell patterns and neotenic traits. EMBO J 2022; 41:e109694. [PMID: 35694726 PMCID: PMC9340489 DOI: 10.15252/embj.2021109694] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 12/13/2022] Open
Abstract
Naked mole rats (NMRs) are the longest-lived rodents yet their stem cell characteristics remain enigmatic. Here, we comprehensively mapped the NMR hematopoietic landscape and identified unique features likely contributing to longevity. Adult NMRs form red blood cells in spleen and marrow, which comprise a myeloid bias toward granulopoiesis together with decreased B-lymphopoiesis. Remarkably, youthful blood and marrow single-cell transcriptomes and cell compositions are largely maintained until at least middle age. Similar to primates, the primitive stem and progenitor cell (HSPC) compartment is marked by CD34 and THY1. Stem cell polarity is seen for Tubulin but not CDC42, and is not lost until 12 years of age. HSPC respiration rates are as low as in purified human stem cells, in concert with a strong expression signature for fatty acid metabolism. The pool of quiescent stem cells is higher than in mice, and the cell cycle of hematopoietic cells is prolonged. By characterizing the NMR hematopoietic landscape, we identified resilience phenotypes such as an increased quiescent HSPC compartment, absence of age-related decline, and neotenic traits likely geared toward longevity.
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Affiliation(s)
| | | | | | | | - Albert K Ying
- Division of GeneticsDepartment of MedicineBrigham and Women’s HospitalHarvard Medical SchoolBostonMAUSA
| | - Alexander Tyshkovskiy
- Division of GeneticsDepartment of MedicineBrigham and Women’s HospitalHarvard Medical SchoolBostonMAUSA
| | - Marco Mariotti
- Division of GeneticsDepartment of MedicineBrigham and Women’s HospitalHarvard Medical SchoolBostonMAUSA
| | - Spencer Gray
- Department of BiologyUniversity of RochesterRochesterNYUSA
| | - Zhihui Zhang
- Department of BiologyUniversity of RochesterRochesterNYUSA
| | - Michael G Drage
- Pathology and Laboratory MedicineUniversity of Rochester Medical CenterRochesterNYUSA
| | | | - Jan‐Henning Klusmann
- Pediatric Hematology and OncologyMartin‐Luther‐University Halle‐WittenbergHalleGermany
| | - Vadim N Gladyshev
- Division of GeneticsDepartment of MedicineBrigham and Women’s HospitalHarvard Medical SchoolBostonMAUSA
| | | | - Vera Gorbunova
- Department of BiologyUniversity of RochesterRochesterNYUSA
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19
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Developmental cues license megakaryocyte priming in murine hematopoietic stem cells. Blood Adv 2022; 6:6228-6241. [PMID: 35584393 PMCID: PMC9792704 DOI: 10.1182/bloodadvances.2021006861] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/22/2022] [Accepted: 05/13/2022] [Indexed: 12/30/2022] Open
Abstract
The fetal-to-adult switch in hematopoietic stem cell (HSC) behavior is characterized by alterations in lineage output and entry into deep quiescence. Here we identify the emergence of megakaryocyte (Mk)-biased HSCs as an event coinciding with this developmental switch. Single-cell chromatin accessibility analysis reveals a ubiquitous acquisition of Mk lineage priming signatures in HSCs during the fetal-to-adult transition. These molecular changes functionally coincide with increased amplitude of early Mk differentiation events after acute inflammatory insult. Importantly, we identify LIN28B, known for its role in promoting fetal-like self-renewal, as an insulator against the establishment of an Mk-biased HSC pool. LIN28B protein is developmentally silenced in the third week of life, and its prolonged expression delays emergency platelet output in young adult mice. We propose that developmental regulation of Mk priming may represent a switch for HSCs to toggle between prioritizing self-renewal in the fetus and increased host protection in postnatal life.
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20
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Watt SM. The long and winding road: homeostatic and disordered haematopoietic microenvironmental niches: a narrative review. BIOMATERIALS TRANSLATIONAL 2022; 3:31-54. [PMID: 35837343 PMCID: PMC9255786 DOI: 10.12336/biomatertransl.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/05/2022] [Accepted: 03/10/2022] [Indexed: 11/18/2022]
Abstract
Haematopoietic microenvironmental niches have been described as the 'gatekeepers' for the blood and immune systems. These niches change during ontogeny, with the bone marrow becoming the predominant site of haematopoiesis in post-natal life under steady state conditions. To determine the structure and function of different haematopoietic microenvironmental niches, it is essential to clearly define specific haematopoietic stem and progenitor cell subsets during ontogeny and to understand their temporal appearance and anatomical positioning. A variety of haematopoietic and non-haematopoietic cells contribute to haematopoietic stem and progenitor cell niches. The latter is reported to include endothelial cells and mesenchymal stromal cells (MSCs), skeletal stem cells and/or C-X-C motif chemokine ligand 12-abundant-reticular cell populations, which form crucial components of these microenvironments under homeostatic conditions. Dysregulation or deterioration of such cells contributes to significant clinical disorders and diseases worldwide and is associated with the ageing process. A critical appraisal of these issues and of the roles of MSC/C-X-C motif chemokine ligand 12-abundant-reticular cells and the more recently identified skeletal stem cell subsets in bone marrow haematopoietic niche function under homeostatic conditions and during ageing will form the basis of this research review. In the context of haematopoiesis, clinical translation will deal with lessons learned from the vast experience garnered from the development and use of MSC therapies to treat graft versus host disease in the context of allogeneic haematopoietic transplants, the recent application of these MSC therapies to treating emerging and severe coronavirus disease 2019 (COVID-19) infections, and, given that skeletal stem cell ageing is one proposed driver for haematopoietic ageing, the potential contributions of these stem cells to haematopoiesis in healthy bone marrow and the benefits and challenges of using this knowledge for rejuvenating the age-compromised bone marrow haematopoietic niches and restoring haematopoiesis.
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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, UK
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
- Cancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
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21
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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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22
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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: 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: 02/16/2022] [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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23
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Lee Y, DiMaulo-Milk E, Leslie J, Ding L. Hematopoietic stem cells temporally transition to thrombopoietin dependence in the fetal liver. SCIENCE ADVANCES 2022; 8:eabm7688. [PMID: 35294228 PMCID: PMC8926339 DOI: 10.1126/sciadv.abm7688] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Tissue stem cells temporally change intrinsic mechanisms to meet physiological demands. However, little is known whether and how stem cells rely on distinct extrinsic maintenance mechanisms over time. Here, we found that hematopoietic stem cells (HSCs) temporally transition to depend on thrombopoietin (TPO), a key extrinsic factor, from E16.5 onward in the developing liver. Deletion of Tpo reduced mTOR activity, induced differentiation gene expression, and preferentially depleted metabolically active HSCs. Ectopic activation of the JAK2 or MAPK pathway did not rescue HSCs in Tpo-/- mice. Enforced activation of the mTOR pathway by conditionally deleting Tsc1 significantly rescued HSCs and their gene expression in Tpo-/- mice. Lin28b intrinsically promoted mTOR activation in HSCs, and its expression diminished over time. Conditional deletion of Lin28b further reduced mTOR activity and strongly exacerbated HSC depletion in Tpo-/- mice. Therefore, HSCs temporally transition from intrinsic LIN28B-dependent to extrinsic TPO-dependent maintenance in the developing liver.
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24
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Liu Y, Chen Q, Jeong HW, Koh BI, Watson EC, Xu C, Stehling M, Zhou B, Adams RH. A specialized bone marrow microenvironment for fetal haematopoiesis. Nat Commun 2022; 13:1327. [PMID: 35288551 PMCID: PMC8921288 DOI: 10.1038/s41467-022-28775-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 02/09/2022] [Indexed: 12/19/2022] Open
Abstract
In adult mammalian bone marrow (BM), vascular endothelial cells and perivascular reticular cells control the function of haematopoietic stem and progenitor cells (HSPCs). During fetal development, the mechanisms regulating the de novo haematopoietic cell colonization of BM remain largely unknown. Here, we show that fetal and adult BM exhibit fundamental differences in cellular composition and molecular interactions by single cell RNA sequencing. While fetal femur is largely devoid of leptin receptor-expressing cells, arterial endothelial cells (AECs) provide Wnt ligand to control the initial HSPC expansion. Haematopoietic stem cells and c-Kit+ HSPCs are reduced when Wnt secretion by AECs is genetically blocked. We identify Wnt2 as AEC-derived signal that activates β-catenin-dependent proliferation of fetal HSPCs. Treatment of HSPCs with Wnt2 promotes their proliferation and improves engraftment after transplantation. Our work reveals a fundamental switch in the cellular organization and molecular regulation of BM niches in the embryonic and adult organism. The colonization of bone marrow by haematopoietic stem and progenitor cells is critical for lifelong blood cell formation. Here the authors report distinct features of fetal bone marrow and show that artery-derived signals promote haematopoietic colonization.
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25
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Li Y, Magee JA. Transcriptional reprogramming in neonatal hematopoietic stem and progenitor cells. Exp Hematol 2021; 101-102:25-33. [PMID: 34303776 PMCID: PMC8557639 DOI: 10.1016/j.exphem.2021.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 02/04/2023]
Abstract
Hematopoietic stem cells (HSCs) and lineage-committed hematopoietic progenitor cells (HPCs) undergo profound shifts in gene expression during the neonatal and juvenile stages of life. Temporal changes in HSC/HPC gene expression underlie concomitant changes in self-renewal capacity, lineage biases, and hematopoietic output. Moreover, they can modify disease phenotypes. For example, childhood leukemias have distinct driver mutation profiles relative to adult leukemias, and they may arise from distinct cells of origin. The putative relationship between neonatal HSC/HPC ontogeny and childhood blood disorders highlights the importance of understanding how, at a mechanistic level, HSCs transition from fetal to adult transcriptional states. In this perspective piece, we summarize recent work indicating that the transition is uncoordinated and imprecisely timed. We discuss implications of these findings, including mechanisms that might enable neonatal HSCs and HPCs to acquire adultlike properties over a drawn-out period, in lieu of precise gene regulatory networks. The transition from fetal to adult transcriptional programs coincides with a pulse of type I interferon signaling that activates many genes associated with the adultlike state. This pulse may sensitize HSCs/HPCs to mutations that drive leukemogenesis shortly after birth. If we can understand how developmental switches modulate HSC and HPC fate after birth-both under normal circumstances and in the setting of disease-causing mutations-we can potentially reprogram these switches to treat or prevent childhood leukemias.
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26
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Dong M, Mallet Gauthier È, Fournier M, Melichar HJ. Developing the right tools for the job: Lin28 regulation of early life T-cell development and function. FEBS J 2021; 289:4416-4429. [PMID: 34077615 DOI: 10.1111/febs.16045] [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] [Received: 12/16/2020] [Revised: 04/29/2021] [Accepted: 06/01/2021] [Indexed: 12/14/2022]
Abstract
T cells comprise a functionally heterogeneous cell population that has important roles in the immune system. While T cells are broadly considered to be a component of the antigen-specific adaptive immune response, certain T-cell subsets display innate-like effector characteristics whereas others perform immunosuppressive functions. These functionally diverse T-cell populations preferentially arise at different stages of ontogeny and are tailored to the immunological priorities of the organism over time. Many differences in early life versus adult T-cell phenotypes can be attributed to the cell-intrinsic properties of the distinct progenitors that seed the thymus throughout development. It is becoming clear that Lin28, an evolutionarily conserved, heterochronic RNA-binding protein that is differentially expressed among early life and adult hematopoietic progenitor cells, plays a substantial role in influencing early T-cell development and function. Here, we discuss the mechanisms by which Lin28 shapes the T-cell landscape to protect the developing fetus and newborn. Manipulation of the Lin28 gene regulatory network is being considered as one means of improving hematopoietic stem cell transplant outcomes; as such, understanding the impact of Lin28 on T-cell function is of clinical relevance.
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Affiliation(s)
- Mengqi Dong
- Immunology-Oncology Unit, Maisonneuve-Rosemont Hospital Research Center, Montréal, QC, Canada.,Département de microbiologie, infectiologie et immunologie, Université de Montréal, Montréal, QC, Canada
| | - Ève Mallet Gauthier
- Immunology-Oncology Unit, Maisonneuve-Rosemont Hospital Research Center, Montréal, QC, Canada.,Département de microbiologie, infectiologie et immunologie, Université de Montréal, Montréal, QC, Canada
| | - Marilaine Fournier
- Immunology-Oncology Unit, Maisonneuve-Rosemont Hospital Research Center, Montréal, QC, Canada
| | - Heather J Melichar
- Immunology-Oncology Unit, Maisonneuve-Rosemont Hospital Research Center, Montréal, QC, Canada.,Département de médecine, Université de Montréal, Montréal, QC, Canada
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27
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Sustained fetal hematopoiesis causes juvenile death from leukemia: evidence from a dual-age-specific mouse model. Blood Adv 2021; 4:3728-3740. [PMID: 32777070 DOI: 10.1182/bloodadvances.2020002326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/16/2020] [Indexed: 11/20/2022] Open
Abstract
It is not clear whether disrupted age-specific hematopoiesis contributes to the complex manifestations in leukemia patients who carry identical mutations, particularly in pediatric and adult patients with similar clinical characteristics. By studying a dual-age-specific mouse model, we demonstrate that (1) loss of Pten during the fetal-to-adult hematopoiesis switch (hematopoiesis switch) causes sustained fetal hematopoiesis, resulting in death in juvenile leukemia; (2) myeloid-biased hematopoiesis in juvenile mice is associated with the sustained fetal properties of hematopoietic stem cells (HSCs); (3) the age specificity of juvenile myelomonocytic leukemia depends on the copy number of Pten and Nf1; (4) single-allelic Pten deletion during the hematopoiesis switch causes constitutive activation of MAPK in juvenile mice with Nf1 loss of heterozygosity (LOH); and (5) Nf1 LOH causes monocytosis in juvenile mice with Pten haploinsufficiency but does not cause lethality until adulthood. Our data suggest that 1 copy of Pten is sufficient to maintain an intact negative-feedback loop of the Akt pathway and HSC function in reconstitution, despite MAPK being constitutively activated in juvenile Pten+/ΔNf1LOH mice. However, 2 copies of Pten are required to maintain the integrity of the MAPK pathway in juvenile mice with Nf1 haploinsufficiency. Our data indicate that previous investigations of Pten function in wild-type mice may not reflect the impact of Pten loss in mice with Nf1 mutations or other genetic defects. We provide a proof of concept that disassociated age-specific hematopoiesis contributes to leukemogenesis and pediatric demise.
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28
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Apostol AC, López DA, Beaudin AE. A "Switch" in Time through Genes Aligned: Unraveling the Genomic Landscape of HSC Development. Cell Stem Cell 2021; 27:695-697. [PMID: 33157043 DOI: 10.1016/j.stem.2020.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Seeking to define the "switch" from fetal to adult hematopoiesis, Li et al. (2020) performed extensive genomic and epigenomic profiling of hematopoietic stem and progenitor cells across ontogeny (as explored in this issue of Cell Stem Cell). Gradual and stochastic changes in genomic and epigenomic regulation suggest the absence of any specific regulator.
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Affiliation(s)
- April C Apostol
- Quantitative and Systems Biology Graduate Program, University of California-Merced, Merced, CA, USA
| | - Diego A López
- Division of Microbiology and Immunology, Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA.
| | - Anna E Beaudin
- Division of Hematology and Hematologic Malignancies, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA.
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29
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Wiencke JK, Zhang Z, Koestler DC, Salas LA, Molinaro AM, Christensen BC, Kelsey KT. Identification of a foetal epigenetic compartment in adult human kidney. Epigenetics 2021; 17:335-355. [PMID: 33783321 DOI: 10.1080/15592294.2021.1900027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
The mammalian kidney has extensive repair capacity; however, identifying adult renal stem cells has proven elusive. We applied an epigenetic marker of foetal cell origin (FCO) in diverse human tissues as a probe for developmental cell persistence, finding a 5.4-fold greater FCO proportion in kidney. Normal kidney FCO proportions averaged 49% with extensive interindividual variation. FCO proportions were significantly negatively correlated with immune-related gene expression and positively correlated with genes expressed in the renal medulla, including those involved in renal organogenesis (e.g., FGF2, PAX8, and HOXB7). FCO associated genes also mapped to medullary nephron segments in mouse and rat, suggesting evolutionary conservation of this cellular compartment. Renal cancer patients whose tumours contained non-zero FCO scores survived longer. The kidney appears unique in possessing substantial foetal epigenetic features. Further study of FCO-related gene methylation may elucidate regenerative regulatory programmes in tissues without apparent discrete stem cell compartments.
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Affiliation(s)
- John K Wiencke
- Department of Neurological Surgery, Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Ze Zhang
- Department of Epidemiology, Department of Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI, USA
| | - Devin C Koestler
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Lucas A Salas
- Department of Epidemiology, Department of Molecular and Systems Biology, Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Brock C Christensen
- Department of Epidemiology, Department of Molecular and Systems Biology, Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Karl T Kelsey
- Department of Epidemiology, Department of Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI, USA
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30
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Girard D, Torossian F, Oberlin E, Alexander KA, Gueguen J, Tseng HW, Genêt F, Lataillade JJ, Salga M, Levesque JP, Le Bousse-Kerdilès MC, Banzet S. Neurogenic Heterotopic Ossifications Recapitulate Hematopoietic Stem Cell Niche Development Within an Adult Osteogenic Muscle Environment. Front Cell Dev Biol 2021; 9:611842. [PMID: 33748104 PMCID: PMC7973025 DOI: 10.3389/fcell.2021.611842] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/17/2021] [Indexed: 12/11/2022] Open
Abstract
Hematopoiesis and bone interact in various developmental and pathological processes. Neurogenic heterotopic ossifications (NHO) are the formation of ectopic hematopoietic bones in peri-articular muscles that develop following severe lesions of the central nervous system such as traumatic cerebral or spinal injuries or strokes. This review will focus on the hematopoietic facet of NHO. The characterization of NHO demonstrates the presence of hematopoietic marrow in which quiescent hematopoietic stem cells (HSC) are maintained by a functional stromal microenvironment, thus documenting that NHOs are neo-formed ectopic HSC niches. Similarly to adult bone marrow, the NHO permissive environment supports HSC maintenance, proliferation and differentiation through bidirectional signaling with mesenchymal stromal cells and endothelial cells, involving cell adhesion molecules, membrane-bound growth factors, hormones, and secreted matrix proteins. The participation of the nervous system, macrophages and inflammatory cytokines including oncostatin M and transforming growth factor (TGF)-β in this process, reveals how neural circuitry fine-tunes the inflammatory response to generate hematopoietic bones in injured muscles. The localization of NHOs in the peri-articular muscle environment also suggests a role of muscle mesenchymal cells and bone metabolism in development of hematopoiesis in adults. Little is known about the establishment of bone marrow niches and the regulation of HSC cycling during fetal development. Similarities between NHO and development of fetal bones make NHOs an interesting model to study the establishment of bone marrow hematopoiesis during development. Conversely, identification of stage-specific factors that specify HSC developmental state during fetal bone development will give more mechanistic insights into NHO.
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Affiliation(s)
- Dorothée Girard
- INSERM UMRS-MD 1197, Institut de Recherche Biomédicale des Armées (IRBA), Clamart, France
| | - Frédéric Torossian
- INSERM UMRS-MD 1197, Université Paris-Saclay, Hôpital Paul Brousse, Villejuif, France
| | - Estelle Oberlin
- INSERM UMRS-MD 1197, Université Paris-Saclay, Hôpital Paul Brousse, Villejuif, France
| | - Kylie A. Alexander
- Mater Research Institute—The University of Queensland, Woolloongabba, QLD, Australia
| | - Jules Gueguen
- INSERM UMRS-MD 1197, Institut de Recherche Biomédicale des Armées (IRBA), Clamart, France
| | - Hsu-Wen Tseng
- Mater Research Institute—The University of Queensland, Woolloongabba, QLD, Australia
| | - François Genêt
- INSERM U1179, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Versailles, France
| | | | - Marjorie Salga
- INSERM U1179, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Versailles, France
| | - Jean-Pierre Levesque
- Mater Research Institute—The University of Queensland, Woolloongabba, QLD, Australia
| | | | - Sébastien Banzet
- INSERM UMRS-MD 1197, Institut de Recherche Biomédicale des Armées (IRBA), Clamart, France
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31
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Jackson TR, Ling RE, Roy A. The Origin of B-cells: Human Fetal B Cell Development and Implications for the Pathogenesis of Childhood Acute Lymphoblastic Leukemia. Front Immunol 2021; 12:637975. [PMID: 33679795 PMCID: PMC7928347 DOI: 10.3389/fimmu.2021.637975] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/28/2021] [Indexed: 12/27/2022] Open
Abstract
Human B-lymphopoiesis is a dynamic life-long process that starts in utero by around six post-conception weeks. A detailed understanding of human fetal B-lymphopoiesis and how it changes in postnatal life is vital for building a complete picture of normal B-lymphoid development through ontogeny, and its relevance in disease. B-cell acute lymphoblastic leukemia (B-ALL) is one of the most common cancers in children, with many of the leukemia-initiating events originating in utero. It is likely that the biology of B-ALL, including leukemia initiation, maintenance and progression depends on the developmental stage and type of B-lymphoid cell in which it originates. This is particularly important for early life leukemias, where specific characteristics of fetal B-cells might be key to determining how the disease behaves, including response to treatment. These cellular, molecular and/or epigenetic features are likely to change with age in a cell intrinsic and/or microenvironment directed manner. Most of our understanding of fetal B-lymphopoiesis has been based on murine data, but many recent studies have focussed on characterizing human fetal B-cell development, including functional and molecular assays at a single cell level. In this mini-review we will give a short overview of the recent advances in the understanding of human fetal B-lymphopoiesis, including its relevance to infant/childhood leukemia, and highlight future questions in the field.
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Affiliation(s)
- Thomas R Jackson
- Department of Paediatrics and MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Rebecca E Ling
- Department of Paediatrics and MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Anindita Roy
- Department of Paediatrics and MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.,National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Oxford, United Kingdom
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32
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Sene LDB, Scarano WR, Zapparoli A, Gontijo JAR, Boer PA. Impact of gestational low-protein intake on embryonic kidney microRNA expression and in nephron progenitor cells of the male fetus. PLoS One 2021; 16:e0246289. [PMID: 33544723 PMCID: PMC7864410 DOI: 10.1371/journal.pone.0246289] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 01/15/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Here, we have demonstrated that gestational low-protein (LP) intake offspring present lower birth weight, reduced nephron numbers, renal salt excretion, arterial hypertension, and renal failure development compared to regular protein (NP) intake rats in adulthood. We evaluated the expression of various miRNAs and predicted target genes in the kidney in gestational 17-days LP (DG-17) fetal metanephros to identify molecular pathways involved in the proliferation and differentiation of renal embryonic or fetal cells. METHODS Pregnant Wistar rats were classified into two groups based on protein supply during pregnancy: NP (regular protein diet, 17%) or LP diet (6%). Renal miRNA sequencing (miRNA-Seq) performed on the MiSeq platform, RT-qPCR of predicted target genes, immunohistochemistry, and morphological analysis of 17-DG NP and LP offspring were performed using previously described methods. RESULTS A total of 44 miRNAs, of which 19 were up and 25 downregulated, were identified in 17-DG LP fetuses compared to age-matched NP offspring. We selected 7 miRNAs involved in proliferation, differentiation, and cellular apoptosis. Our findings revealed reduced cell number and Six-2 and c-Myc immunoreactivity in metanephros cap (CM) and ureter bud (UB) in 17-DG LP fetuses. Ki-67 immunoreactivity in CM was 48% lesser in LP compared to age-matched NP fetuses. Conversely, in LP CM and UB, β-catenin was 154%, and 85% increased, respectively. Furthermore, mTOR immunoreactivity was higher in LP CM (139%) and UB (104%) compared to that in NP offspring. TGFβ-1 positive cells in the UB increased by approximately 30% in the LP offspring. Moreover, ZEB1 metanephros-stained cells increased by 30% in the LP offspring. ZEB2 immunofluorescence, although present in the entire metanephros, was similar in both experimental groups. CONCLUSIONS Maternal protein restriction changes the expression of miRNAs, mRNAs, and proteins involved in proliferation, differentiation, and apoptosis during renal development. Renal ontogenic dysfunction, caused by maternal protein restriction, promotes reduced reciprocal interaction between CM and UB; consequently, a programmed and expressive decrease in nephron number occurs in the fetus.
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Affiliation(s)
- Letícia de Barros Sene
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, Faculty of Medical Sciences at State University of Campinas, Campinas, SP, Brazil
| | - Wellerson Rodrigo Scarano
- Department of Structural and Functional Biology, Bioscience Institute, São Paulo State University, Botucatu, SP, Brazil
| | - Adriana Zapparoli
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, Faculty of Medical Sciences at State University of Campinas, Campinas, SP, Brazil
| | - José Antônio Rocha Gontijo
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, Faculty of Medical Sciences at State University of Campinas, Campinas, SP, Brazil
| | - Patrícia Aline Boer
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, Faculty of Medical Sciences at State University of Campinas, Campinas, SP, Brazil
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Li Y, Kong W, Yang W, Patel RM, Casey EB, Okeyo-Owuor T, White JM, Porter SN, Morris SA, Magee JA. Single-Cell Analysis of Neonatal HSC Ontogeny Reveals Gradual and Uncoordinated Transcriptional Reprogramming that Begins before Birth. Cell Stem Cell 2020; 27:732-747.e7. [PMID: 32822583 PMCID: PMC7655695 DOI: 10.1016/j.stem.2020.08.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 06/21/2020] [Accepted: 07/31/2020] [Indexed: 12/14/2022]
Abstract
Fetal and adult hematopoietic stem cells (HSCs) have distinct proliferation rates, lineage biases, gene expression profiles, and gene dependencies. Although these differences are widely recognized, it is not clear how the transition from fetal to adult identity is coordinated. Here we show that murine HSCs and committed hematopoietic progenitor cells (HPCs) undergo a gradual, rather than precipitous, transition from fetal to adult transcriptional states. The transition begins prior to birth and is punctuated by a late prenatal spike in type I interferon signaling that promotes perinatal HPC expansion and sensitizes progenitors to the leukemogenic FLT3ITD mutation. Most other changes in gene expression and enhancer activation are imprecisely timed and poorly coordinated. Thus, heterochronic enhancer elements, and their associated transcripts, are activated independently of one another rather than as part of a robust network. This simplifies the regulatory programs that guide neonatal HSC/HPC ontogeny, but it creates heterogeneity within these populations.
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Affiliation(s)
- Yanan Li
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - Wenjun Kong
- Department of Genetics, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA; Department of Developmental Biology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - Wei Yang
- Department of Genetics, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - Riddhi M Patel
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - Emily B Casey
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - Theresa Okeyo-Owuor
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - J Michael White
- Department of Pathology and Immunobiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - Shaina N Porter
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA
| | - Samantha A Morris
- Department of Genetics, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA; Department of Developmental Biology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA.
| | - Jeffrey A Magee
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA; Department of Genetics, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA.
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Liggett LA, Sankaran VG. Unraveling Hematopoiesis through the Lens of Genomics. Cell 2020; 182:1384-1400. [PMID: 32946781 PMCID: PMC7508400 DOI: 10.1016/j.cell.2020.08.030] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/14/2020] [Accepted: 08/17/2020] [Indexed: 01/07/2023]
Abstract
Hematopoiesis has long served as a paradigm of stem cell biology and tissue homeostasis. In the past decade, the genomics revolution has ushered in powerful new methods for investigating the hematopoietic system that have provided transformative insights into its biology. As part of the advances in genomics, increasingly accurate deep sequencing and novel methods of cell tracking have revealed hematopoiesis to be more of a continuous and less of a discrete and punctuated process than originally envisioned. In part, this continuous nature of hematopoiesis is made possible by the emergent outcomes of vast, interconnected regulatory networks that influence cell fates and lineage commitment. It is also becoming clear how these mechanisms are modulated by genetic variation present throughout the population. This review describes how these recently uncovered complexities are reshaping our concept of tissue development and homeostasis while opening up a more comprehensive future understanding of hematopoiesis.
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Affiliation(s)
- L Alexander Liggett
- Division of Hematology/Oncology, Boston Children's Hospital and Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Vijay G Sankaran
- Division of Hematology/Oncology, Boston Children's Hospital and Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
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35
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Fang Y, Chang CK. [Advances on mouse transplantation model of myelodysplastic syndrome]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2020; 41:344-347. [PMID: 32447943 PMCID: PMC7364926 DOI: 10.3760/cma.j.issn.0253-2727.2020.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Indexed: 11/23/2022]
Affiliation(s)
- Y Fang
- Department of Hematology, Shanghai JiaoTong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - C K Chang
- Department of Hematology, Shanghai JiaoTong University Affiliated Sixth People's Hospital, Shanghai 200233, China
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36
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Lin28b regulates age-dependent differences in murine platelet function. Blood Adv 2020; 3:72-82. [PMID: 30622145 DOI: 10.1182/bloodadvances.2018020859] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023] Open
Abstract
Platelets are essential for hemostasis; however, several studies have identified age-dependent differences in platelet function. To better understand the origins of fetal platelet function, we have evaluated the contribution of the fetal-specific RNA binding protein Lin28b in the megakaryocyte/platelet lineage. Because activated fetal platelets have very low levels of P-selectin, we hypothesized that the expression of platelet P-selectin is part of a fetal-specific hematopoietic program conferred by Lin28b. Using the mouse as a model, we find that activated fetal platelets have low levels of P-selectin and do not readily associate with granulocytes in vitro and in vivo, relative to adult controls. Transcriptional analysis revealed high levels of Lin28b and Hmga2 in fetal, but not adult, megakaryocytes. Overexpression of LIN28B in adult mice significantly reduces the expression of P-selectin in platelets, and therefore identifies Lin28b as a negative regulator of P-selectin expression. Transplantation of fetal hematopoietic progenitors resulted in the production of platelets with low levels of P-selectin, suggesting that the developmental regulation of P-selectin is intrinsic and independent of differences between fetal and adult microenvironments. Last, we observe that the upregulation of P-selectin expression occurs postnatally, and the temporal kinetics of this upregulation are recapitulated by transplantation of fetal hematopoietic stem and progenitor cells into adult recipients. Taken together, these studies identify Lin28b as a new intrinsic regulator of fetal platelet function.
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37
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Govindarajah V, Reynaud D. Tuning of the Hematopoietic Stem Cell Compartment in its Inflammatory Environment. CURRENT STEM CELL REPORTS 2019; 4:189-200. [PMID: 30705804 DOI: 10.1007/s40778-018-0131-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Purpose of review The hematopoietic stem cell (HSC) compartment is the cornerstone of a lifelong blood cell production but also contributes to the ability of the hematopoietic system to dynamically respond to environmental challenges. This review summarizes our knowledge about the interaction between HSCs and its inflammatory environment during life and questions how its disruption could affect the health of the hematopoietic system. Recent findings The latest research demonstrates the direct role of inflammatory signals in promoting the emergence of the HSCs during development and in setting their steady-state activity in adults. They indicate that inflammatory patho-physiological conditions or immunological history could shape the structure and biology of the HSC compartment, therefore altering its overall fitness. Summary Through instructive and/or selective mechanisms, the inflammatory environment seems to provide a key homeostatic signal for HSCs. Although the mechanistic basis of this complex interplay remains to be fully understood, its dysregulation has broad consequences on HSC physiology and the development of hematological diseases. As such, developing experimental models that fully recapitulate a normal basal inflammatory state could be essential to fully assess HSC biology in native conditions.
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Affiliation(s)
- Vinothini Govindarajah
- Stem Cell Program, Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Damien Reynaud
- Stem Cell Program, Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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38
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Song Y, Rongvaux A, Taylor A, Jiang T, Tebaldi T, Balasubramanian K, Bagale A, Terzi YK, Gbyli R, Wang X, Fu X, Gao Y, Zhao J, Podoltsev N, Xu M, Neparidze N, Wong E, Torres R, Bruscia EM, Kluger Y, Manz MG, Flavell RA, Halene S. A highly efficient and faithful MDS patient-derived xenotransplantation model for pre-clinical studies. Nat Commun 2019; 10:366. [PMID: 30664659 PMCID: PMC6341122 DOI: 10.1038/s41467-018-08166-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 12/18/2018] [Indexed: 11/20/2022] Open
Abstract
Comprehensive preclinical studies of Myelodysplastic Syndromes (MDS) have been elusive due to limited ability of MDS stem cells to engraft current immunodeficient murine hosts. Here we report a MDS patient-derived xenotransplantation model in cytokine-humanized immunodeficient “MISTRG” mice that provides efficient and faithful disease representation across all MDS subtypes. MISTRG MDS patient-derived xenografts (PDX) reproduce patients’ dysplastic morphology with multi-lineage representation, including erythro- and megakaryopoiesis. MISTRG MDS-PDX replicate the original sample’s genetic complexity and can be propagated via serial transplantation. MISTRG MDS-PDX demonstrate the cytotoxic and differentiation potential of targeted therapeutics providing superior readouts of drug mechanism of action and therapeutic efficacy. Physiologic humanization of the hematopoietic stem cell niche proves critical to MDS stem cell propagation and function in vivo. The MISTRG MDS-PDX model opens novel avenues of research and long-awaited opportunities in MDS research. Myelodyplastic hematopoietic stem cells (MDS HSC) have eluded in vivo modeling. Here the authors present a highly efficient MDS patient-derived xenotransplantation model in cytokine-humanized mice with replication of the donors’ genetic complexity and myeloid, erythroid, and megakaryocytic lineage dysplasia.
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Affiliation(s)
- Yuanbin Song
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Anthony Rongvaux
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.,Fred Hutchinson Cancer Research Center, Program in Immunology, Clinical Research Division, and Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA
| | - Ashley Taylor
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Tingting Jiang
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Toma Tebaldi
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA.,Laboratory of Translational Genomics, Centre for Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Kunthavai Balasubramanian
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Arun Bagale
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA.,University of New Haven, New Haven, CT, USA
| | - Yunus Kasim Terzi
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA.,Department of Medical Genetics, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Rana Gbyli
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Xiaman Wang
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA.,Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Xiaoying Fu
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA.,Department of Laboratory Medicine, Shenzhen Children's Hospital, Shenzhen, People's Republic of China
| | - Yimeng Gao
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Jun Zhao
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Nikolai Podoltsev
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Mina Xu
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Natalia Neparidze
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Ellice Wong
- Section of Hematology/Oncology, VA Medical Center, West Haven, CT, USA
| | - Richard Torres
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Emanuela M Bruscia
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT, USA
| | - Yuval Kluger
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.,Interdepartmental Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA.,Program of Applied Mathematics, Yale University, New Haven, CT, USA
| | - Markus G Manz
- Hematology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA. .,Howard Hughes Medical Institute, Yale University, New Haven, CT, USA.
| | - Stephanie Halene
- Section of Hematology, Department of Internal Medicine and Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA.
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40
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Kim H, Lee S, Lee SW. TRAF6 Distinctly Regulates Hematopoietic Stem and Progenitors at Different Periods of Development in Mice. Mol Cells 2018; 41:753-761. [PMID: 30037215 PMCID: PMC6125416 DOI: 10.14348/molcells.2018.0191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/14/2018] [Accepted: 06/19/2018] [Indexed: 12/27/2022] Open
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6) is identified as a signaling adaptor protein that regulates bone metabolism, immunity, and the development of several tissues. Therefore, its functions are closely associated with multiple diseases. TRAF6 is also involved in the regulation of hematopoiesis under steady-state conditions, but the role of TRAF6 in modulating hematopoietic stem and progenitor cells (HSPCs) during the developmental stages remains unknown. Here, we report that the deletion of TRAF6 in hematopoietic lineage cells resulted in the upregulation of HSPCs in the fetal liver at the prenatal period. However, in the early postnatal period, deletion of TRAF6 drastically diminished HSPCs in the bone marrow (BM), with severe defects in BM development and extramedullary hematopoiesis in the spleen being identified. In the analysis of adult HSPCs in a BM reconstitution setting, TRAF6 played no significant role in HSPC homeostasis, albeit it affected the development of T cells. Taken together, our results suggest that the role of TRAF6 in regulating HSPCs is altered in a spatial and temporal manner during the developmental course of mice.
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Affiliation(s)
- Hyekang Kim
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673,
Korea
| | - Seungwon Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673,
Korea
| | - Seung-Woo Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673,
Korea
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673,
Korea
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41
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Salas LA, Wiencke JK, Koestler DC, Zhang Z, Christensen BC, Kelsey KT. Tracing human stem cell lineage during development using DNA methylation. Genome Res 2018; 28:1285-1295. [PMID: 30072366 PMCID: PMC6120629 DOI: 10.1101/gr.233213.117] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 07/27/2018] [Indexed: 12/22/2022]
Abstract
Stem cell maturation is a fundamental, yet poorly understood aspect of human development. We devised a DNA methylation signature deeply reminiscent of embryonic stem cells (a fetal cell origin signature, FCO) to interrogate the evolving character of multiple human tissues. The cell fraction displaying this FCO signature was highly dependent upon developmental stage (fetal versus adult), and in leukocytes, it described a dynamic transition during the first 5 yr of life. Significant individual variation in the FCO signature of leukocytes was evident at birth, in childhood, and throughout adult life. The genes characterizing the signature included transcription factors and proteins intimately involved in embryonic development. We defined and applied a DNA methylation signature common among human fetal hematopoietic progenitor cells and have shown that this signature traces the lineage of cells and informs the study of stem cell heterogeneity in humans under homeostatic conditions.
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Affiliation(s)
- Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire 03756, USA
| | - John K Wiencke
- Department of Neurological Surgery, Institute for Human Genetics, University of California San Francisco, San Francisco, California 94158, USA
| | - Devin C Koestler
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, Kansas 66160, USA
| | - Ze Zhang
- Department of Epidemiology, Brown University, Providence, Rhode Island 02912, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island 02912, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire 03756, USA.,Department of Molecular and Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire 03756, USA.,Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire 03756, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, Rhode Island 02912, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island 02912, USA
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42
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Peng YJ, Yu H, Hao X, Dong W, Yin X, Lin M, Zheng J, Zhou BO. Luteinizing hormone signaling restricts hematopoietic stem cell expansion during puberty. EMBO J 2018; 37:embj.201898984. [PMID: 30037826 DOI: 10.15252/embj.201898984] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 06/17/2018] [Accepted: 06/25/2018] [Indexed: 12/25/2022] Open
Abstract
The number and self-renewal capacity of hematopoietic stem cells (HSCs) are tightly regulated at different developmental stages. Many pathways have been implicated in regulating HSC development in cell autonomous manners; however, it remains unclear how HSCs sense and integrate developmental cues. In this study, we identified an extrinsic mechanism by which HSC number and functions are regulated during mouse puberty. We found that the HSC number in postnatal bone marrow reached homeostasis at 4 weeks after birth. Luteinizing hormone, but not downstream sex hormones, was involved in regulating HSC homeostasis during this period. Expression of luteinizing hormone receptor (Lhcgr) is highly restricted in HSCs and multipotent progenitor cells in the hematopoietic hierarchy. When Lhcgr was deleted, HSCs continued to expand even after 4 weeks after birth, leading to abnormally elevated hematopoiesis and leukocytosis. In a murine acute myeloid leukemia model, leukemia development was significantly accelerated upon Lhcgr deletion. Together, our work reveals an extrinsic counting mechanism that restricts HSC expansion during development and is physiologically important for maintaining normal hematopoiesis and inhibiting leukemogenesis.
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Affiliation(s)
- Yi Jacky Peng
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Shanghai, China
| | - Hua Yu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Shanghai, China
| | - Xiaoxin Hao
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjie Dong
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Shanghai, China
| | - Xiujuan Yin
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Shanghai, China
| | - Minghui Lin
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Shanghai, China
| | - Junke Zheng
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bo O Zhou
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China .,University of Chinese Academy of Sciences, Shanghai, China
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43
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Affiliation(s)
- Irene Roberts
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine; University of Oxford, Centre for Haematology; Oxford UK
- Oxford BRC Blood Theme, NIHR Oxford Biomedical Centre; Oxford UK
- Department of Paediatrics; University of Oxford; John Radcliffe Hospital; Oxford UK
| | - Nicholas J. Fordham
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine; University of Oxford, Centre for Haematology; Oxford UK
| | - Anupama Rao
- Great Ormond Street Hospital for Children; London UK
| | - Barbara J. Bain
- St Mary's Hospital campus of Imperial College London; St Mary's Hospital; London UK
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44
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Kjeldsen E, Veigaard C, Aggerholm A, Hasle H. Congenital hypoplastic bone marrow failure associated with a de novo partial deletion of the MECOM gene at 3q26.2. Gene 2018; 656:86-94. [DOI: 10.1016/j.gene.2018.02.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 02/14/2018] [Accepted: 02/23/2018] [Indexed: 01/23/2023]
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45
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Harroun SG, Prévost-Tremblay C, Lauzon D, Desrosiers A, Wang X, Pedro L, Vallée-Bélisle A. Programmable DNA switches and their applications. NANOSCALE 2018; 10:4607-4641. [PMID: 29465723 DOI: 10.1039/c7nr07348h] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
DNA switches are ideally suited for numerous nanotechnological applications, and increasing efforts are being directed toward their engineering. In this review, we discuss how to engineer these switches starting from the selection of a specific DNA-based recognition element, to its adaptation and optimisation into a switch, with applications ranging from sensing to drug delivery, smart materials, molecular transporters, logic gates and others. We provide many examples showcasing their high programmability and recent advances towards their real life applications. We conclude with a short perspective on this exciting emerging field.
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Affiliation(s)
- Scott G Harroun
- Laboratory of Biosensors & Nanomachines, Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada.
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Single-Cell Sequencing in Normal and Malignant Hematopoiesis. Hemasphere 2018; 2:e34. [PMID: 31723762 PMCID: PMC6745901 DOI: 10.1097/hs9.0000000000000034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 12/31/2022] Open
Abstract
Hematopoiesis is one of the best studied adult stem-cell systems, with a differentiation hierarchy progressing from immature hematopoietic stem cells to over 10 distinct mature cell types. Recent technological breakthroughs now make it possible to define transcriptional profiles in thousands of individual cells. Facilitated by the wealth of prior data on cell purification and analysis strategies, hematopoiesis has been one of the earliest experimental systems to which many of these new single-cell sequencing technologies have been applied. In this review, the authors focus on recent studies, which have shed light on heterogeneity within individual populations as well as the relationships between populations, and also attempt to characterize the differences between normal and disease/perturbed states.
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Cai P, Mao X, Zhao J, Luo L. Ribosome biogenesis protein Urb2 regulates hematopoietic stem cells development via P53 pathway in zebrafish. Biochem Biophys Res Commun 2018; 497:776-782. [PMID: 29470984 DOI: 10.1016/j.bbrc.2018.02.153] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 02/17/2018] [Indexed: 01/27/2023]
Abstract
Ribosome biogenesis is a significant process in cells. Dysfunction in this process will result in the defects of protein synthesis and consequently cause the development of specific diseases called ribosomopathies. Mutations in ribosome biogenesis protein Rps19, Rpl5, or Rpl11 can lead to hematopoietic defects in human, thus triggering the disease Diamond Blackfan anemia. However, the regulatory mechanisms of ribosome biogenesis in hematopoiesis remain incompletely understood. In this study, we describe a zebrafish mutant cq42, which carries a nonsense mutation in the gene that encodes ribosome biogenesis 2 homolog (Urb2). Urb2 is strongly expressed in the caudal hematopoietic tissue (CHT) during hematopoietic stem cells (HSCs) expanding. Molecular characterization of urb2cq42 larvae suggest that urb2 deficiency notably decrease the population of HSCs in CHT and early T cells in thymus. Further analysis shows that compromised cell proliferation and superfluous apoptosis are observed in the CHT of urb2cq42 mutant. P53 pathway is upregulated in the urb2cq42 larvae and loss-of-function of P53 can fully rescue the hematopoietic defects in urb2cq42 mutant. These data demonstrate that urb2 is essential for HSCs development through the regulation of P53 pathway.
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Affiliation(s)
- Pengcheng Cai
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Molecular Developmental Biology, School of Life Sciences, Southwest University, Beibei, 400715 Chongqing, China
| | - Xiaoyu Mao
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Molecular Developmental Biology, School of Life Sciences, Southwest University, Beibei, 400715 Chongqing, China
| | - Jieqiong Zhao
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Molecular Developmental Biology, School of Life Sciences, Southwest University, Beibei, 400715 Chongqing, 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, 400715 Chongqing, China.
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Laurenti E, Göttgens B. From haematopoietic stem cells to complex differentiation landscapes. Nature 2018; 553:418-426. [PMID: 29364285 PMCID: PMC6555401 DOI: 10.1038/nature25022] [Citation(s) in RCA: 484] [Impact Index Per Article: 80.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 11/08/2017] [Indexed: 12/18/2022]
Abstract
The development of mature blood cells from haematopoietic stem cells has long served as a model for stem-cell research, with the haematopoietic differentiation tree being widely used as a model for the maintenance of hierarchically organized tissues. Recent results and new technologies have challenged the demarcations between stem and progenitor cell populations, the timing of cell-fate choices and the contribution of stem and multipotent progenitor cells to the maintenance of steady-state blood production. These evolving views of haematopoiesis have broad implications for our understanding of the functions of adult stem cells, as well as the development of new therapies for malignant and non-malignant haematopoietic diseases.
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Affiliation(s)
- Elisa Laurenti
- Department of Haematology and Wellcome Trust and MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge UK
| | - Berthold Göttgens
- Department of Haematology and Wellcome Trust and MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge UK
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Kurre P. Hematopoietic development: a gap in our understanding of inherited bone marrow failure. Exp Hematol 2017; 59:1-8. [PMID: 29248612 DOI: 10.1016/j.exphem.2017.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 11/26/2017] [Accepted: 12/07/2017] [Indexed: 12/31/2022]
Abstract
Inherited bone marrow failure syndromes (IBMFS) represent a heterogeneous group of multisystem disorders that typically present with cytopenia in early childhood. Efforts to understand the underlying hematopoietic stem cell (HSC) losses have generally focused on postnatal hematopoiesis. However, reflecting the role of many of the involved genes in core cellular functions and the diverse nonhematologic abnormalities seen in patients at birth, studies have begun to explore IBMFS manifestations during fetal development. Here, I consider the current evidence for fetal deficits in the HSC pool and highlight emerging concepts regarding the origins and unique pathophysiology of hematopoietic failure in IBMFS.
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Affiliation(s)
- Peter Kurre
- Department of Pediatrics, Papé Family Pediatric Research Institute, Pediatric Blood & Cancer Biology Program, Oregon Health & Science University, Portland, Oregon.
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50
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Stem cell self-renewal in regeneration and cancer: Insights from mathematical modeling. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.coisb.2017.09.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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