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Koleva P, He J, Dunsmore G, Bozorgmehr N, Lu J, Huynh M, Tollenaar S, Huang V, Walter J, Way SS, Elahi S. CD71 + erythroid cells promote intestinal symbiotic microbial communities in pregnancy and neonatal period. MICROBIOME 2024; 12:142. [PMID: 39080725 PMCID: PMC11290123 DOI: 10.1186/s40168-024-01859-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 06/15/2024] [Indexed: 08/02/2024]
Abstract
BACKGROUND The establishment of microbial communities in neonatal mammals plays a pivotal role in shaping their immune responses to infections and other immune-related conditions. This process is influenced by a combination of endogenous and exogenous factors. Previously, we reported that depletion of CD71 + erythroid cells (CECs) results in an inflammatory response to microbial communities in newborn mice. RESULTS Here, we systemically tested this hypothesis and observed that the small intestinal lamina propria of neonatal mice had the highest frequency of CECs during the early days of life. This high abundance of CECs was attributed to erythropoiesis niches within the small intestinal tissues. Notably, the removal of CECs from the intestinal tissues by the anti-CD71 antibody disrupted immune homeostasis. This disruption was evident by alteration in the expression of antimicrobial peptides (AMPs), toll-like receptors (TLRs), inflammatory cytokines/chemokines, and resulting in microbial dysbiosis. Intriguingly, these alterations in microbial communities persisted when tested 5 weeks post-treatment, with a more notable effect observed in female mice. This illustrates a sex-dependent association between CECs and neonatal microbiome modulation. Moreover, we extended our studies on pregnant mice, observing that modulating CECs substantially alters the frequency and diversity of their microbial communities. Finally, we found a significantly lower proportion of CECs in the cord blood of pre-term human newborns, suggesting a potential role in dysregulated immune responses to microbial communities in the gut. CONCLUSIONS Our findings provide novel insights into pivotal role of CECs in immune homeostasis and swift adaptation of microbial communities in newborns. Despite the complexity of the cellular biology of the gut, our findings shed light on the previously unappreciated role of CECs in the dialogue between the microbiota and immune system. These findings have significant implications for human health. Video Abstract.
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Affiliation(s)
- Petya Koleva
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, Edmonton, Canada
| | - Jia He
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, Edmonton, Canada
| | - Garett Dunsmore
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, Edmonton, Canada
| | - Najmeh Bozorgmehr
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, Edmonton, Canada
| | - Julia Lu
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, Edmonton, Canada
| | - Maia Huynh
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, Edmonton, Canada
| | - Stephanie Tollenaar
- Department of Agricultural, Food & Nutritional Sciences, Edmonton, University of Alberta, Edmonton, Canada
| | - Vivian Huang
- Division of Gastroenterology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Division of Gastroenterology, Mount Sinai Hospital, Toronto, Canada
| | - Jens Walter
- Department of Agricultural, Food & Nutritional Sciences, Edmonton, University of Alberta, Edmonton, Canada
- School of Microbiology and Department of Medicine, APC Microbiome Ireland, University College Cork, National University of Ireland, Cork, Ireland
| | - Sing Sing Way
- Centre for Inflammation and Tolerance, Cincinnati Childrens Hospital, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Shokrollah Elahi
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, Edmonton, Canada.
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Canada.
- Glycomics Institute of Alberta, University of Alberta, Edmonton, Canada.
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Canada.
- Alberta Transplant Institute, Edmonton, AB, Canada.
- 7020G Katz Group Centre for Pharmacology and Health Research, 11361-87Th Ave NW, Edmonton, AB, T6G2E1, Canada.
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Perik-Zavodskii R, Perik-Zavodskaia O, Shevchenko J, Volynets M, Alrhmoun S, Nazarov K, Denisova V, Sennikov S. A subpopulation of human bone marrow erythroid cells displays a myeloid gene expression signature similar to that of classic monocytes. PLoS One 2024; 19:e0305816. [PMID: 39038020 PMCID: PMC11262679 DOI: 10.1371/journal.pone.0305816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/05/2024] [Indexed: 07/24/2024] Open
Abstract
Erythroid cells, serving as progenitors and precursors to erythrocytes responsible for oxygen transport, were shown to exhibit an immunosuppressive and immunoregulatory phenotype. Previous investigations from our research group have revealed an antimicrobial gene expression profile within murine bone marrow erythroid cells which suggested a role for erythroid cells in innate immunity. In the present study, we focused on elucidating the characteristics of human bone marrow erythroid cells through comprehensive analyses, including NanoString gene expression profiling utilizing the Immune Response V2 panel, a BioPlex examination of chemokine and TGF-beta family proteins secretion, and analysis of publicly available single-cell RNA-seq data. Our findings demonstrate that an erythroid cell subpopulation manifests a myeloid-like gene expression signature comprised of antibacterial immunity and neutrophil chemotaxis genes which suggests an involvement of human erythroid cells in the innate immunity. Furthermore, we found that human erythroid cells secreted CCL22, CCL24, CXCL5, CXCL8, and MIF chemokines. The ability of human erythroid cells to express these chemokines might facilitate the restriction of immune cells in the bone marrow under normal conditions or contribute to the ability of erythroid cells to induce local immunosuppression by recruiting immune cells in their immediate vicinity in case of extramedullary hematopoiesis.
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Affiliation(s)
- Roman Perik-Zavodskii
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Olga Perik-Zavodskaia
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Julia Shevchenko
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Marina Volynets
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Saleh Alrhmoun
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Kirill Nazarov
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Vera Denisova
- Clinic of Immunopathology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Sergey Sennikov
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
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Li SR, Wu ZZ, Yu HJ, Sun ZJ. Targeting erythroid progenitor cells for cancer immunotherapy. Int J Cancer 2024. [PMID: 39039820 DOI: 10.1002/ijc.35102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 06/05/2024] [Accepted: 06/10/2024] [Indexed: 07/24/2024]
Abstract
Immunotherapy, especially immune checkpoint blockade therapy, represents a major milestone in the history of cancer therapy. However, the current response rate to immunotherapy among cancer patients must be improved; thus, new strategies for sensitizing patients to immunotherapy are urgently needed. Erythroid progenitor cells (EPCs), a population of immature erythroid cells, exert potent immunosuppressive functions. As a newly recognized immunosuppressive population, EPCs have not yet been effectively targeted. In this review, we summarize the immunoregulatory mechanisms of EPCs, especially for CD45+ EPCs. Moreover, in view of the regulatory effects of EPCs on the tumor microenvironment, we propose the concept of EPC-immunity, present existing strategies for targeting EPCs, and discuss the challenges encountered in both basic research and clinical applications. In particular, the impact of existing cancer treatments on EPCs is discussed, laying the foundation for combination therapies. The aim of this review is to provide new avenues for improving the efficacy of cancer immunotherapy by targeting EPCs.
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Affiliation(s)
- Su-Ran Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
| | - Zhi-Zhong Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
| | - Hai-Jun Yu
- Department of Radiation and Medical Oncology, Hubei Provincial Clinical Research Center for Cancer, Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Zhi-Jun Sun
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
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Wang X, Zhang W, Zhao S, Yan H, Xin Z, Cui T, Zang R, Zhao L, Wang H, Zhou J, Li X, Yue W, Xi J, Zhang Z, Fang X, Pei X. Decoding human in vitro terminal erythropoiesis originating from umbilical cord blood mononuclear cells and pluripotent stem cells. Cell Prolif 2024; 57:e13614. [PMID: 38499435 PMCID: PMC11216933 DOI: 10.1111/cpr.13614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 12/18/2023] [Accepted: 01/30/2024] [Indexed: 03/20/2024] Open
Abstract
Ex vivo red blood cell (RBC) production generates unsatisfactory erythroid cells. A deep exploration into terminally differentiated cells is required to understand the impairments for RBC generation and the underlying mechanisms. Here, we mapped an atlas of terminally differentiated cells from umbilical cord blood mononuclear cells (UCBMN) and pluripotent stem cells (PSC) and observed their dynamic regulation of erythropoiesis at single-cell resolution. Interestingly, we detected a few progenitor cells and non-erythroid cells from both origins. In PSC-derived erythropoiesis (PSCE), the expression of haemoglobin switch regulators (BCL11A and ZBTB7A) were significantly absent, which could be the restraint for its adult globin expression. We also found that PSCE were less active in stress erythropoiesis than in UCBMN-derived erythropoiesis (UCBE), and explored an agonist of stress erythropoiesis gene, TRIB3, could enhance the expression of adult globin in PSCE. Compared with UCBE, there was a lower expression of epigenetic-related proteins (e.g., CASPASE 3 and UBE2O) and transcription factors (e.g., FOXO3 and TAL1) in PSCE, which might restrict PSCE's enucleation. Moreover, we characterized a subpopulation with high proliferation capacity marked by CD99high in colony-forming unit-erythroid cells. Inhibition of CD99 reduced the proliferation of PSC-derived cells and facilitated erythroid maturation. Furthermore, CD99-CD99 mediated the interaction between macrophages and erythroid cells, illustrating a mechanism by which macrophages participate in erythropoiesis. This study provided a reference for improving ex vivo RBC generation.
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Affiliation(s)
- Xiaoling Wang
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Wei Zhang
- Beijing Institute of Genomics & China National Center for BioinformationChinese Academy of SciencesBeijingPR China
| | - Siqi Zhao
- Beijing Institute of Genomics & China National Center for BioinformationChinese Academy of SciencesBeijingPR China
| | - Hao Yan
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Zijuan Xin
- Beijing Institute of Genomics & China National Center for BioinformationChinese Academy of SciencesBeijingPR China
| | - Tiantian Cui
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Ruge Zang
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Lingping Zhao
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Haiyang Wang
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Junnian Zhou
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Xuan Li
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Wen Yue
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Jiafei Xi
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
| | - Zhaojun Zhang
- Beijing Institute of Genomics & China National Center for BioinformationChinese Academy of SciencesBeijingPR China
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingPR China
- Sino‐Danish CollegeUniversity of Chinese Academy of SciencesBeijingPR China
- Beijing Key Laboratory of Genome and Precision Medicine TechnologiesBeijingPR China
| | - Xiangdong Fang
- Beijing Institute of Genomics & China National Center for BioinformationChinese Academy of SciencesBeijingPR China
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingPR China
- Sino‐Danish CollegeUniversity of Chinese Academy of SciencesBeijingPR China
- Beijing Key Laboratory of Genome and Precision Medicine TechnologiesBeijingPR China
- College of Life SciencesUniversity of Chinese Academy of SciencesBeijingPR China
- Savaid Medical SchoolUniversity of Chinese Academy of SciencesBeijingPR China
- School of Future TechnologyUniversity of Chinese Academy of SciencesBeijingPR China
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingPR China
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Saito S, Shahbaz S, Osman M, Redmond D, Bozorgmehr N, Rosychuk RJ, Lam G, Sligl W, Cohen Tervaert JW, Elahi S. Diverse immunological dysregulation, chronic inflammation, and impaired erythropoiesis in long COVID patients with chronic fatigue syndrome. J Autoimmun 2024; 147:103267. [PMID: 38797051 DOI: 10.1016/j.jaut.2024.103267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
A substantial number of patients recovering from acute SARS-CoV-2 infection present serious lingering symptoms, often referred to as long COVID (LC). However, a subset of these patients exhibits the most debilitating symptoms characterized by ongoing myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS). We specifically identified and studied ME/CFS patients from two independent LC cohorts, at least 12 months post the onset of acute disease, and compared them to the recovered group (R). ME/CFS patients had relatively increased neutrophils and monocytes but reduced lymphocytes. Selective T cell exhaustion with reduced naïve but increased terminal effector T cells was observed in these patients. LC was associated with elevated levels of plasma pro-inflammatory cytokines, chemokines, Galectin-9 (Gal-9), and artemin (ARTN). A defined threshold of Gal-9 and ARTN concentrations had a strong association with LC. The expansion of immunosuppressive CD71+ erythroid cells (CECs) was noted. These cells may modulate the immune response and contribute to increased ARTN concentration, which correlated with pain and cognitive impairment. Serology revealed an elevation in a variety of autoantibodies in LC. Intriguingly, we found that the frequency of 2B4+CD160+ and TIM3+CD160+ CD8+ T cells completely separated LC patients from the R group. Our further analyses using a multiple regression model revealed that the elevated frequency/levels of CD4 terminal effector, ARTN, CEC, Gal-9, CD8 terminal effector, and MCP1 but lower frequency/levels of TGF-β and MAIT cells can distinguish LC from the R group. Our findings provide a new paradigm in the pathogenesis of ME/CFS to identify strategies for its prevention and treatment.
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Affiliation(s)
- Suguru Saito
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Shima Shahbaz
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Mohammed Osman
- Department of Medicine, Division of Rheumatology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Desiree Redmond
- Department of Medicine, Division of Rheumatology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Najmeh Bozorgmehr
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Rhonda J Rosychuk
- Department of Pediatrics, Division of Infectious Disease, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Grace Lam
- Department of Medicine, Division of Pulmonary Medicine, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Wendy Sligl
- Department of Critical Care Medicine, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada; Department of Medicine, Division of Infectious Diseases, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Jan Willem Cohen Tervaert
- Department of Medicine, Division of Rheumatology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada
| | - Shokrollah Elahi
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada; Department of Oncology, University of Alberta, Edmonton, T6G 2E1, AB, Canada; Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada; Li Ka Shing Institute of Virology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, T6G 2E1, AB, Canada.
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6
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Bozorgmehr N, Syed H, Mashhouri S, Walker J, Elahi S. Transcriptomic profiling of peripheral blood cells in HPV-associated carcinoma patients receiving combined valproic acid and avelumab. Mol Oncol 2024; 18:1209-1230. [PMID: 37681284 PMCID: PMC11077001 DOI: 10.1002/1878-0261.13519] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/27/2023] [Accepted: 09/05/2023] [Indexed: 09/09/2023] Open
Abstract
Human papillomavirus (HPV)-associated cancer continues to evade the immune system by promoting a suppressive tumor microenvironment. Therefore, immunotherapy appears to be a promising approach for targeting HPV-associated tumors. We hypothesized that valproic acid (VA) as an epigenetic agent combined with avelumab may enhance the antitumor immunity in HPV-associated solid tumors. We performed bulk RNA-sequencing (RNA-Seq) on total peripheral blood mononuclear cells (PBMCs) of seven nonresponders (NRs) and four responders (Rs). A total of 39 samples (e.g., pretreatment, post-VA, postavelumab, and endpoint) were analyzed. Also, we quantified plasma analytes and performed flow cytometry. We observed a differential pattern in immune response following treatment with VA and/or avelumab in NRs vs. Rs. A significant upregulation of transcripts associated with NETosis [the formation of neutrophil extracellular traps (NETs)] and neutrophil degranulation pathways was linked to the presence of a myeloid-derived suppressor cell signature in NRs. We noted the elevation of IL-8/IL-18 cytokines and a distinct transcriptome signature at the baseline and endpoint in NRs. By using the receiver operator characteristics, we identified a cutoff value for the plasma IL-8/IL-18 to discriminate NRs from Rs. We found differential therapeutic effects for VA and avelumab in NRs vs. Rs. Thus, our results imply that measuring the plasma IL-8/IL-18 and bulk RNA-Seq of PBMCs may serve as valuable biomarkers to predict immunotherapy outcomes.
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Affiliation(s)
- Najmeh Bozorgmehr
- Division of Foundational Sciences, School of DentistryUniversity of AlbertaEdmontonABCanada
| | - Hussain Syed
- Division of Foundational Sciences, School of DentistryUniversity of AlbertaEdmontonABCanada
| | - Siavash Mashhouri
- Division of Foundational Sciences, School of DentistryUniversity of AlbertaEdmontonABCanada
| | - John Walker
- Department of Medical OncologyUniversity of AlbertaEdmontonABCanada
| | - Shokrollah Elahi
- Division of Foundational Sciences, School of DentistryUniversity of AlbertaEdmontonABCanada
- Department of Medical OncologyUniversity of AlbertaEdmontonABCanada
- Faculty of Medicine and DentistryLi Ka Shing Institute of VirologyUniversity of AlbertaEdmontonABCanada
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Yin M, Zhang Y, Li X, Li X. Unveiling the impact of maternal gestational diabetes mellitus on cord blood CD71+ erythroid cell transcriptome. Pediatr Res 2024:10.1038/s41390-024-03139-x. [PMID: 38519796 DOI: 10.1038/s41390-024-03139-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 02/15/2024] [Accepted: 03/01/2024] [Indexed: 03/25/2024]
Abstract
IMPACT This study reveals the effects of maternal gestational diabetes mellitus (GDM) on the transcriptome of CD71+ erythroid cells (CECs) in cord blood. It highlights the role of CECs in immunosuppressive function and identifies potential mechanisms linking GDM to adverse outcomes in offspring. This understanding might lead to improved strategies for managing and preventing adverse outcomes in infants born to mothers with GDM.
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Affiliation(s)
- Min Yin
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yan Zhang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xinyu Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xia Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China.
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Shahbaz S, Sligl W, Osman M, Elahi S. Immunological responses in SARS-CoV-2 and HIV co-infection versus SARS-CoV-2 mono-infection: case report of the interplay between SARS-CoV-2 and HIV. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2023; 19:91. [PMID: 37848967 PMCID: PMC10583436 DOI: 10.1186/s13223-023-00846-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 10/08/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND There is an urgent need to understand the interplay between SARS-CoV-2 and HIV to inform risk-mitigation approaches for HIV-infected individuals. OBJECTIVES We conclude that people living with HIV (PLWH) who are antiretroviral therapy (ART) naïve could be at a greater risk of morbidity or mortality once co-infected with SARS-CoV-2. METHODS Here, we performed extensive immune phenotyping using flow cytometry. Moreover, to compare the range of values observed in the co-infected case, we have included a larger number of mono-infected cases with SARS-CoV-2. We also quantified soluble co-inhibitory/co-stimulatory molecules in the plasma of our patients. RESULTS We noted a robust immune activation characterized by the expansion of CD8+ T cells expressing co-inhibitory/stimulatory molecules (e.g. PD-1, TIM-3, 2B4, TIGIT, CD39, and ICOS) and activation markers (CD38, CD71, and HLA-DR) in the co-infected case. We further found that neutrophilia was more pronounced at the expense of lymphopenia in the co-infected case. In particular, naïve and central memory CD8+ T cells were scarce as a result of switching to effector and effector memory in the co-infected case. CD8+ T cell effector functions such as cytokine production (e.g. TNF-α and IFN-γ) and cytolytic molecules expression (granzyme B and perforin) following anti-CD3/CD28 or the Spike peptide pool stimulation were more prominent in the co-infected case versus the mono-infected case. We also observed that SARS-CoV-2 alters T cell exhaustion commonly observed in PLWH. CONCLUSION These findings imply that inadequate immune reconstitution and/or lack of access to ART could dysregulate immune response against SARS-CoV-2 infection, which can result in poor clinical outcomes in PLWH. Our study has implications for prioritizing PLWH in the vaccination program/access to ART in resource-constrained settings.
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Affiliation(s)
- Shima Shahbaz
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, AB, T6G 2E1, Canada
| | - Wendy Sligl
- Department of Critical Care Medicine, University of Alberta, Edmonton, AB, T6G 2E1, Canada
- Department of Medicine, Division of Infectious Diseases, University of Alberta, Edmonton, AB, T6G 2E1, Canada
| | - Mohammed Osman
- Department of Medicine, Division of Rheumatology, University of Alberta, Edmonton, AB, T6G 2E1, Canada
| | - Shokrollah Elahi
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, AB, T6G 2E1, Canada.
- Department of Oncology, University of Alberta, Edmonton, AB, T6G 2E1, Canada.
- Li Ka Shing Institute of Virology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2E1, Canada.
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Yang Z, Wang Z, Wu L, Wang Y, Xu Z, Liu Y, Wang F, Yu D. B lymphocytes transdifferentiate into immunosuppressive erythroblast-like cells. Front Immunol 2023; 14:1202943. [PMID: 37545522 PMCID: PMC10401433 DOI: 10.3389/fimmu.2023.1202943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023] Open
Abstract
Recent studies have demonstrated that a particular group of nucleated cells that exhibit erythroid markers (TER119 in mice and CD235a in humans) possess the ability to suppress the immune system and promote tumor growth. These cells are known as CD45+ erythroid progenitor cells (EPCs). According to our study, it appears that a subset of these CD45+ EPCs originate from B lymphocytes. Under conditions of hypoxia, mouse B lymphoma cells are capable of converting to erythroblast-like cells, which display phenotypes of CD45+TER119+ cells, including immunosuppressive effects on CD8 T cells. Furthermore, non-neoplastic B cells have similar differentiation abilities and exert the same immunosuppressive effect under anemia or tumor conditions in mice. Similar B cells exist in neonatal mice, which provides an explanation for the potential origin of immunosuppressive erythroid cells in newborns. Additionally, CD19+CD235a+ double-positive cells can be identified in the peripheral blood of patients with chronic lymphocytic leukemia. These findings indicate that some CD45+ EPCs are transdifferentiated from a selective population of CD19+ B lymphocytes in response to environmental stresses, highlighting the plasticity of B lymphocytes. We anticipate a potential therapeutic implication, in that targeting a specific set of B cells instead of erythroid cells should be expected to restore adaptive immunity and delay cancer progression.
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Affiliation(s)
- Zhe Yang
- Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Yangzhou University, Yangzhou, China
| | - Zheng Wang
- Pathology Department, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Lei Wu
- Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Yangzhou University, Yangzhou, China
| | - Ying Wang
- Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Yangzhou University, Yangzhou, China
| | - Zhihui Xu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ying Liu
- Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Yangzhou University, Yangzhou, China
| | - Fangfang Wang
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Yangzhou University, Yangzhou, China
- Department of Hematology, Yangzhou University Clinical Medical College, Yangzhou, China
| | - Duonan Yu
- Institute of Translational Medicine, Yangzhou University Medical College, Yangzhou, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Yangzhou University, Yangzhou, China
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10
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Schippel N, Sharma S. Dynamics of human hematopoietic stem and progenitor cell differentiation to the erythroid lineage. Exp Hematol 2023; 123:1-17. [PMID: 37172755 PMCID: PMC10330572 DOI: 10.1016/j.exphem.2023.05.001] [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] [Received: 03/02/2023] [Revised: 05/04/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
Erythropoiesis, the development of erythrocytes from hematopoietic stem cells, occurs through four phases: erythroid progenitor (EP) development, early erythropoiesis, terminal erythroid differentiation (TED), and maturation. According to the classical model that is based on immunophenotypic profiles of cell populations, each of these phases comprises multiple differentiation states that arise in a hierarchical manner. After segregation of lymphoid potential, erythroid priming begins during progenitor development and progresses through progenitor cell types that have multilineage potential. Complete separation of the erythroid lineage is achieved during early erythropoiesis with the formation of unipotent EPs: burst-forming unit-erythroid and colony-forming unit-erythroid. These erythroid-committed progenitors undergo TED and maturation, which involves expulsion of the nucleus and remodeling to form functional biconcave, hemoglobin-filled erythrocytes. In the last decade or so, many studies employing advanced techniques such as single-cell RNA-sequencing (scRNA-seq) as well as the conventional methods, including colony-forming cell assays and immunophenotyping, have revealed heterogeneity within the stem, progenitor, and erythroblast stages, and uncovered alternate paths for segregation of erythroid lineage potential. In this review, we provide an in-depth account of immunophenotypic profiles of all cell types within erythropoiesis, highlight studies that demonstrate heterogeneous erythroid stages, and describe deviations to the classical model of erythropoiesis. Overall, although scRNA-seq approaches have provided new insights, flow cytometry remains relevant and is the primary method for validation of novel immunophenotypes.
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Affiliation(s)
- Natascha Schippel
- Department of Basic Medical Sciences, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ
| | - Shalini Sharma
- Department of Basic Medical Sciences, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ.
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11
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Bozorgmehr N, Okoye I, Mashhouri S, Lu J, Koleva P, Walker J, Elahi S. CD71 + erythroid cells suppress T-cell effector functions and predict immunotherapy outcomes in patients with virus-associated solid tumors. J Immunother Cancer 2023; 11:jitc-2022-006595. [PMID: 37236637 DOI: 10.1136/jitc-2022-006595] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs) have revolutionized the treatment of cancer. However, only a portion of patients respond to such treatments. Therefore, it remains a prevailing clinical need to identify factors associated with acquired resistance or lack of response to ICIs. We hypothesized that the immunosuppressive CD71+ erythroid cells (CECs) within the tumor and/or distant 'out-of-field' may impair antitumor response. METHODS We studied 38 patients with cancer through a phase II clinical trial investigating the effects of oral valproate combined with avelumab (anti-programmed death-ligand 1 (PD-L1)) in virus-associated solid tumors (VASTs). We quantified the frequency/functionality of CECs in blood and biopsies of patients. Also, we established an animal model of melanoma (B16-F10) to investigate the possible effects of erythropoietin (EPO) treatment on anti-PD-L1 therapy. RESULTS We found a substantial expansion of CECs in the blood of patients with VAST compared with healthy controls. We noted that the frequency of CECs in circulation was significantly higher at the baseline and throughout the study in non-responders versus responders to PD-L1 therapy. Moreover, we observed that CECs in a dose-dependent manner suppress effector functions of autologous T cells in vitro. The subpopulation of CD45+CECs appears to have a more robust immunosuppressive property compared with their CD45- counterparts. This was illustrated by a stronger expression of reactive oxygen species, PD-L1/PD-L2, and V-domain Ig suppressor of T-cell activation in this subpopulation. Lastly, we found a higher frequency of CECs in the blood circulation at the later cancer stage and their abundance was associated with anemia, and a poor response to immunotherapy. Finally, we report the expansion of CECs in the spleen and tumor microenvironment of mice with melanoma. We found that although CECs in tumor-bearing mice secret artemin, this was not the case for VAST-derived CECs in humans. Notably, our results imply that EPO, a frequently used drug for anemia treatment in patients with cancer, may promote the generation of CECs and subsequently abrogates the therapeutic effects of ICIs (eg, anti-PD-L1). CONCLUSIONS Our results demonstrate that anemia by the expansion of CECs may enhance cancer progression. Notably, measuring the frequency of CECs may serve as a valuable biomarker to predict immunotherapy outcomes.
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Affiliation(s)
- Najmeh Bozorgmehr
- Department of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Isobel Okoye
- Department of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Siavash Mashhouri
- Department of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Julia Lu
- Department of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Petya Koleva
- Department of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - John Walker
- Department of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Shokrollah Elahi
- Department of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
- Department of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada
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12
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Neonatal hematological parameters: the translational aspect of developmental hematopoiesis. Ann Hematol 2023; 102:707-714. [PMID: 36847806 DOI: 10.1007/s00277-023-05144-2] [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: 06/17/2022] [Accepted: 12/20/2022] [Indexed: 03/01/2023]
Abstract
Hematopoiesis is a process constantly evolving from fetal life through adulthood. Neonates present with qualitative and quantitative differences in hematological parameters compared to older children and adults, reflecting developmental changes in hematopoiesis correlated with gestational age. Such differences are more intense for preterm and small-for-gestational-age neonates or neonates with intrauterine growth restriction. This review article is aimed at describing the hematologic differences among neonatal subgroups and the major underlying pathogenic mechanisms. Issues that should be taken into account when interpreting neonatal hematological parameters are also highlighted.
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13
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Rahmati A, Bigam S, Elahi S. Galectin-9 promotes natural killer cells activity via interaction with CD44. Front Immunol 2023; 14:1131379. [PMID: 37006235 PMCID: PMC10060867 DOI: 10.3389/fimmu.2023.1131379] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
Natural killer (NK) cells are a potent innate source of cytokines and cytoplasmic granules. Their effector functions are tightly synchronized by the balance between the stimulatory and inhibitory receptors. Here, we quantified the proportion of NK cells and the surface presence of Galectin-9 (Gal-9) from the bone marrow, blood, liver, spleen, and lungs of adult and neonatal mice. We also examined the effector functions of Gal-9+NK cells compared with their Gal-9- counterparts. Our results revealed that Gal-9+NK cells are more abundant in tissues, in particular, in the liver than in the blood and bone marrow. We found Gal-9 presence was associated with enhanced cytotoxic effector molecules granzyme B (GzmB) and perforin expression. Likewise, Gal-9 expressing NK cells displayed greater IFN-γ and TNF-α expression than their negative counterparts under hemostatic circumstances. Notably, the expansion of Gal-9+NK cells in the spleen of mice infected with E. coli implies that Gal-9+NK cells may provide a protective role against infection. Similarly, we found the expansion of Gal-9+NK cells in the spleen and tumor tissues of melanoma B16-F10 mice. Mechanistically, our results revealed the interaction of Gal-9 with CD44 as noted by their co-expression/co-localization. Subsequently, this interaction resulted in enhanced expression of Phospho-LCK, ERK, Akt, MAPK, and mTOR in NK cells. Moreover, we found Gal-9+NK cells exhibited an activated phenotype as evidenced by increased CD69, CD25, and Sca-1 but reduced KLRG1 expression. Likewise, we found Gal-9 preferentially interacts with CD44high in human NK cells. Despite this interaction, we noted a dichotomy in terms of effector functions in NK cells from COVID-19 patients. We observed that the presence of Gal-9 on NK cells resulted in a greater IFN-γ expression without any changes in cytolytic molecule expression in these patients. These observations suggest differences in Gal-9+NK cell effector functions between mice and humans that should be considered in different physiological and pathological conditions. Therefore, our results highlight the important role of Gal-9 via CD44 in NK cell activation, which suggests Gal-9 is a potential new avenue for the development of therapeutic approaches to modulate NK cell effector functions.
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Affiliation(s)
- Amirhossein Rahmati
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, AB, Canada
| | - Steven Bigam
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, AB, Canada
| | - Shokrollah Elahi
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, AB, Canada
- Department of Oncology, University of Alberta, Edmonton, AB, Canada
- Li Ka Shing Institute of Virology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Shokrollah Elahi,
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14
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Alshalani A, Beuger BM, van Bruggen R, Acker JP, Juffermans NP. Cultured CD71 + erythroid cells modulate the host immune response. Transfus Med 2023. [PMID: 36919690 DOI: 10.1111/tme.12964] [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: 05/10/2022] [Revised: 12/21/2022] [Accepted: 02/21/2023] [Indexed: 03/16/2023]
Abstract
OBJECTIVE The study aimed to determine the impact of Red Blood Cells (RBCs) generated from peripheral blood mononuclear cells (PBMCs) on T cell proliferation and host response following whole blood stimulation. BACKGROUND Culturing RBCs is a potential solution for donor shortage. The impact of immature cultured RBCs which express CD71+ on host immune response is not known. METHODS/MATERIALS PBMCs were seeded in an erythroid expansion medium. CD71+ cells were isolated at days 14 and 21 of culture and incubated with either purified T cells or with LPS-stimulated whole blood. Controls were incubated with medium. RESULTS At day 9, the percentage of cells that expressed CD45 and CD71 reached to the highest level (32.9%, IQR; 26.2-39.05) while the percentage of cells that expressed CD71 and CD235a reached to the highest level on day 17 (70.2%, IQR; 66.1-72.8). Incubation of T cells with days 14 CD71+ cells and day 21 CD71+ cells increased T cell proliferation. In a whole blood stimulation assay, day 21 CD71+ cells, but not day 14 CD71+ cells, inhibited the production of IL-6 and TNFα. CONCLUSION Cultured erythroid cells can modulate the immune response by promoting T cell proliferation and inhibiting cytokine secretions following whole blood stimulation.
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Affiliation(s)
- Abdulrahman Alshalani
- Chair of Medical and Molecular Genetics Research, Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.,Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Boukje M Beuger
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Robin van Bruggen
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Jason P Acker
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada.,Innovation and Portfolio Management, Canadian Blood Services, Edmonton, Alberta, Canada
| | - Nicole P Juffermans
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Department of Intensive Care, OLVG Hospital, Amsterdam, The Netherlands
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15
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Production of immunoregulatory molecules by induced erythroblasts at various stages of cell differentiation. ACTA BIOMEDICA SCIENTIFICA 2022. [DOI: 10.29413/abs.2022-7.5-1.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Introduction. Bone marrow erythroblasts produce a wide range of cytokines with opposite biological effects. This may be due to a change in the spectrum of production of immunoregulatory mediators during differentiation and small qualitative and quantitative differences in the spectrum of cytokines produced at each stage of differentiation, which may be important for the regulation of hemo- and immunopoiesis. The aim. To study the spectrum of production of mediators by erythroblasts at different stages of differentiation. Methods. Erythroblasts were obtained from CD34+ bone marrow cells of healthy donors in the presence of recombinant cytokines. Phenotype assessment was performed using flow cytometry for erythroid (CD45, CD71, CD235a, CD44) and lymphoid markers (CD3, CD4, CD8, CD16, CD19). Blocking of erythroblast differentiation at different stages was carried out using specific blocking monoclonal antibodies to melanocortin receptors (MCR) of types 1, 2 and 5. Cytokine analysis in conditioned erythroblast media was performed using the Bio-Plex Pro Human Cytokine 48-Plex Screening Panel (Bio-Rad Laboratories, USA). Cytokine production was analyzed using the CytokineExplore online tool. Results. The resulting erythroblasts are divided into positive and negative populations according to the CD45 marker, carry markers of erythroid cells CD71, CD235a and do not express linear markers of lymphoid cells. In type 1 MCR blockage, polychromatophilic erythroblasts predominate, in type 2 MCR blockage, basophilic erythroblasts predominate, and in type 5 MCR blockage, orthochromatophilic erythroblasts accumulate. According to the production of cytokines, it was shown that when using any of the blocking antibodies, we obtain cells that differ qualitatively and quantitatively in a number of mediators from the initial population of induced erythroblasts. Conclusion. Thus, we have shown qualitative and quantitative differences in the production of mediators by erythroblasts depending on the stage of differentiation, which can lead to different regulatory effects.
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16
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Madani J, Aghebati-Maleki L, Gharibeh N, Pourakbari R, Yousefi M. Fetus, as an allograft, evades the maternal immunity. Transpl Immunol 2022; 75:101728. [DOI: 10.1016/j.trim.2022.101728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/09/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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17
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Tabu K, Taga T. Cancer ego-system in glioma: an iron-replenishing niche network systemically self-organized by cancer stem cells. Inflamm Regen 2022; 42:54. [PMID: 36451253 PMCID: PMC9710158 DOI: 10.1186/s41232-022-00240-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 11/16/2022] [Indexed: 12/03/2022] Open
Abstract
For all living organisms, the adaptation to outside environments is an essential determinant to survive natural and artificial selections and to sustain the whole ecosystem intact with functional biodiversity. Likewise, cancer cells have similar characteristics that evade not only stresses from the host-internal innate and adaptive immune systems but also those from host-externally administered therapeutic interventions. Such selfish characteristics of cancer cells lead to the formation of cancerous ecosystem with a wide variety of phenotypic heterogeneity, which should be called cancer "egosystem" from the host point of view. Recently increasing evidence demonstrates that cancer stem cells (CSCs) are responsible for this cancer egosystem by effectively exploiting host inflammatory and hematopoietic cells and thereby reconstructing their own advantageous niches, which may well be a driving force in cancer recurrence. CSCs are further likely to render multiple niches mutually interconnected and cooperating as a network to support back CSCs themselves. Here, we summarize a recently identified iron-replenishing niche network self-organized by glioma CSCs (GSCs) through remote regulation of host myeloid and erythroid lineage cells. GSCs recruit bone marrow (BM)-derived inflammatory monocytes into tumor parenchyma, facilitate their differentiation into macrophages (Mφs) and skew their polarization into pro-tumoral phenotype, i.e., tumor-associated Mφs (TAMs). Meanwhile, GSCs distantly enhance erythropoiesis in host hematopoietic organs like BM and spleen potentially by secreting some soluble mediators that maintain continuous supply of erythrocytes within tumors. In addition, as normal red pulp Mφs (RPMs) under steady state conditions in spleen recycle iron by phagocytosing the aged or damaged erythrocytes (a/dECs) and release it in time of need, TAMs at least in gliomas phagocytose the hemorrhaged erythrocytes within tumors and potentially serve as a source of iron, an important nutrient indispensable to GSC survival and glioma progression. Taken together, these studies provide the substantial evidence that CSCs have a unique strategy to orchestrate multiple niches as an ecosystem that threatens the host living, which in this sense must be an egosystem. Targeting such an adaptive subpopulation of CSCs could achieve drastic disturbance of the CSC niches and subsequent extinction of malignant neoplasms.
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Affiliation(s)
- Kouichi Tabu
- grid.265073.50000 0001 1014 9130Department of Stem Cell Regulation, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510 Japan
| | - Tetsuya Taga
- grid.265073.50000 0001 1014 9130Department of Stem Cell Regulation, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510 Japan
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18
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Rinchai D, Deola S, Zoppoli G, Kabeer BSA, Taleb S, Pavlovski I, Maacha S, Gentilcore G, Toufiq M, Mathew L, Liu L, Vempalli FR, Mubarak G, Lorenz S, Sivieri I, Cirmena G, Dentone C, Cuccarolo P, Giacobbe DR, Baldi F, Garbarino A, Cigolini B, Cremonesi P, Bedognetti M, Ballestrero A, Bassetti M, Hejblum BP, Augustine T, Van Panhuys N, Thiebaut R, Branco R, Chew T, Shojaei M, Short K, Feng CG, Zughaier SM, De Maria A, Tang B, Ait Hssain A, Bedognetti D, Grivel JC, Chaussabel D. High-temporal resolution profiling reveals distinct immune trajectories following the first and second doses of COVID-19 mRNA vaccines. SCIENCE ADVANCES 2022; 8:eabp9961. [PMID: 36367935 PMCID: PMC9651857 DOI: 10.1126/sciadv.abp9961] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 09/26/2022] [Indexed: 05/31/2023]
Abstract
Knowledge of the mechanisms underpinning the development of protective immunity conferred by mRNA vaccines is fragmentary. Here, we investigated responses to coronavirus disease 2019 (COVID-19) mRNA vaccination via high-temporal resolution blood transcriptome profiling. The first vaccine dose elicited modest interferon and adaptive immune responses, which peaked on days 2 and 5, respectively. The second vaccine dose, in contrast, elicited sharp day 1 interferon, inflammation, and erythroid cell responses, followed by a day 5 plasmablast response. Both post-first and post-second dose interferon signatures were associated with the subsequent development of antibody responses. Yet, we observed distinct interferon response patterns after each of the doses that may reflect quantitative or qualitative differences in interferon induction. Distinct interferon response phenotypes were also observed in patients with COVID-19 and were associated with severity and differences in duration of intensive care. Together, this study also highlights the benefits of adopting high-frequency sampling protocols in profiling vaccine-elicited immune responses.
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Affiliation(s)
- Darawan Rinchai
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
- Laboratory of Human Genetics of Infectious Diseases, The Rockefeller University, New York, NY, USA
| | - Sara Deola
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | - Gabriele Zoppoli
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | | | - Sara Taleb
- Division of Genomics and Translational Biomedicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
| | - Igor Pavlovski
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | - Selma Maacha
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | | | | | - Lisa Mathew
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | - Li Liu
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | | | - Ghada Mubarak
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | - Stephan Lorenz
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | - Irene Sivieri
- Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
- Division of Infectious Diseases, Department of Health Sciences, University of Genoa, Genoa, Italy
- Department of Experimental and Clinical Medicine, School of Internal Medicine, University of Florence, Florence, Italy
| | | | | | - Paola Cuccarolo
- Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | - Daniele Roberto Giacobbe
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Division of Infectious Diseases, Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Federico Baldi
- Division of Infectious Diseases, Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Alberto Garbarino
- Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | - Benedetta Cigolini
- Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | | | | | - Alberto Ballestrero
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Division of Infectious Diseases, Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Matteo Bassetti
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Division of Infectious Diseases, Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Boris P. Hejblum
- Univ. Bordeaux, Department of Public Health, Inserm U1219 Bordeaux Population Health Research Centre, Inria SISTM, F-33000 Bordeaux, France
| | | | | | - Rodolphe Thiebaut
- Univ. Bordeaux, Department of Public Health, Inserm U1219 Bordeaux Population Health Research Centre, Inria SISTM, F-33000 Bordeaux, France
| | - Ricardo Branco
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
| | - Tracey Chew
- Sydney Informatic Hub, The University of Sydney, Sydney, New South Wales, Australia
| | - Maryam Shojaei
- Nepean Clinical School, The University of Sydney, Sydney, New South Wales, Australia
- Westmead Institute for Medical Research, Westmead, New South Wales, Australia
- Department of Medicine, Sydney Medical School, Nepean Hospital, The University of Sydney, Sydney, New South Wales, Australia
| | - Kirsty Short
- The University of Queensland, School of Chemistry and Molecular Biosciences, St Lucia, Brisbane, Queensland, Australia
- Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, Queensland, Australia
| | - Carl G. Feng
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
- Tuberculosis Research Program, Centenary Institute, The University of Sydney, Sydney, New South Wales, Australia
| | | | - Susu M. Zughaier
- College of Medicine, QU Health, Qatar University, PO Box 2713, Doha, Qatar
| | - Andrea De Maria
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Division of Infectious Diseases, Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Benjamin Tang
- Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Ali Ait Hssain
- Medical Intensive Care Unit, Hamad General Hospital, PO BOX 3050, Doha, Qatar
- Weill Cornell Medical College, Doha, Qatar
| | - Davide Bedognetti
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
- Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | | | - Damien Chaussabel
- Research Branch, Sidra Medicine, PO Box 26999, Doha, Qatar
- Computational Sciences Department, The Jackson Laboratory, Farmington, CT, USA
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19
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Zhang K, Hu Y, Li R, Li T. Single-cell atlas of murine adrenal glands reveals immune-adrenal crosstalk during systemic <i>Candida albicans</i> infection. Front Immunol 2022; 13:966814. [PMID: 36389688 PMCID: PMC9664004 DOI: 10.3389/fimmu.2022.966814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 10/10/2022] [Indexed: 11/25/2022] Open
Abstract
Fungal sepsis remains a major health threat with high mortality, where the adrenal gland stress response has been rarely reported. <i>Candida albicans</i> (<i>C.albicans</i>) is the most common opportunistic fungal pathogen of life-threatening disseminated candidiasis and fungal sepsis. In the present study, we performed single-cell RNA sequencing (scRNA-Seq) using the 10x Genomics platform to analyze the changes in murine adrenal transcriptome following systemic <i>C.albicans</i> infection. A total of 16 021 cells were categorized into 18 transcriptionally distinct clusters, representing adrenocortical cells, endothelial cells, various immune cells, mesenchymal cells, smooth muscle cells, adrenal capsule, chromaffin cells, neurons and glials. As the main cell component in the adrenal gland responsible for steroidogenesis, the adrenocortical cells dramatically diminished and were further grouped into 10 subclusters, which differently distributed in the infected and uninfected samples. Pseudo-time analysis revealed transitions of the adrenocortical cells from the initial normal states to active or dysfunctional states following systemic <i>C.albicans</i> infection <i>via</i> two trajectory paths. Endothelial cells in the highly vascularized organ of adrenal gland further proliferated following infection, with the upregulation of genes positively regulating angiogenesis and downregulation of protective genes of endothelial cells. Immune cells were also excessively infiltrated in adrenal glands of <i>C.albicans</i>-infected mice. Macrophages dominated the immune microenvironments in murine adrenal glands both before and after <i>C.albicans</i> infection, mediating the crosstalk among the steroid-producing cells, endothelial cells and immune cells within the adrenal gland. NLR family, pyrin domain containing 3 (NLRP3, encoded by <i>Nlrp3</i>) and complement receptor 3 (CR3, encoded by <i>Itgam</i>) were found to be significantly upregulated on the adrenal macrophages upon systemic <i>C.albicans</i> infection and might play critical roles in mediating the myeloid response. Meanwhile, the number and strength of the interactions between the infiltrating immune cells and adrenal resident cells were unveiled by cell-cell communication analysis to be dramatically increased after systemic <i>C.albicans</i> infection, indicating that the immune-adrenal crosstalk might contribute to the compromised functions of adrenal cells. Overall, our comprehensive picture of the murine adrenal gland microenvironment in systemic <i>C.albicans</i> infection provides deeper insights into the immune-adrenal cell communications during fungal sepsis.
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Affiliation(s)
- Kai Zhang
- Department of Dermatology and Venerology, Peking University First Hospital, Beijing, China,National Clinical Research Center for Skin and Immune Diseases, Beijing, China,Research Center for Medical Mycology, Peking University, Beijing, China,Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
| | - Yuzhe Hu
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China,Key Laboratory of Medical Immunology, National Health Commission of the People's Republic of China, Beijing, China,Peking University Center for Human Disease Genomics, Beijing, China
| | - Ruoyu Li
- Department of Dermatology and Venerology, Peking University First Hospital, Beijing, China,National Clinical Research Center for Skin and Immune Diseases, Beijing, China,Research Center for Medical Mycology, Peking University, Beijing, China,Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China,*Correspondence: Ting Li, ; Ruoyu Li,
| | - Ting Li
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China,Key Laboratory of Medical Immunology, National Health Commission of the People's Republic of China, Beijing, China,Peking University Center for Human Disease Genomics, Beijing, China,*Correspondence: Ting Li, ; Ruoyu Li,
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20
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Chen F, Wang J, Zhao X, Lv XQ. Interaction of basic diseases and low red blood cell count as critical murderer of wound infection after osteosarcoma resection: Wound infection after osteosarcoma resection. Medicine (Baltimore) 2022; 101:e31074. [PMID: 36221384 PMCID: PMC9542657 DOI: 10.1097/md.0000000000031074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Surgical wound infection is one of the common complications in patients after osteosarcoma resection. It is imperative to grasp the risk factors comprehensively. Therefore, this study aimed to explore the risk factors of wound infection and deeply analyze the correlation between risk factors and wound infection. METHODS The study subjects were 101 patients who underwent osteosarcoma resection between April 2018 and August 2021. The diagnosis of postoperative wound infection was confirmed by postoperative observation of the incision, ultrasound imaging, and pathogenic examination. This study included a series of potential factors, mainly laboratory examination indicators and patients' general information. The statistical methods had Pearson Chi-square test, Spearman-rho correlation test, multifactorial linear regression model, logistic regression analysis, and receiver operating characteristic (ROC) curve. RESULTS Pearson Chi-square test and Spearman correlation test showed that red blood cell (RBC) count (P = .033) and basic diseases (P = .020) were significantly correlated with a surgical wound infection after osteosarcoma resection. Logistic regression analysis manifested that basic disease (OR = 0.121, 95% CI: 0.015-0.960, P = .046) and RBC (OR = 0.296, 95% CI: 0.093-0.944, P = .040) have a clear correlation with whether the patients have surgical wound infection after osteosarcoma resection. And the interaction of basic diseases and RBC could diagnose the surgical wound infection sensitively and accurately (AUC = 0.700, P = .014, 95% CI = 0.564-0.836) via the ROC analysis. CONCLUSION Patients with basic diseases and low RBC were risk factors for surgical wound infection after osteosarcoma resection.
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Affiliation(s)
- Fei Chen
- The Second Department of Orthopedics, Hangzhou Fuyang District First People’s Hospital, Hangzhou, PR China
- * Correspondence: Fei Chen, The Second Department of Orthopedics, Hangzhou Fuyang District First People’s Hospital, No. 429 Beihuan Road, Fuyang District, Hangzhou 311499, PR China (e-mail: )
| | - Jie Wang
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Hebei Province, PR China
| | - Xin Zhao
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Hebei Province, PR China
| | - Xian-qiang Lv
- Department of Urology, The Fourth Hospital of Hebei Medical University, Hebei Province, PR China
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21
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Differential Impact of SARS-CoV-2 Isolates, Namely, the Wuhan Strain, Delta, and Omicron Variants on Erythropoiesis. Microbiol Spectr 2022; 10:e0173022. [PMID: 35943266 PMCID: PMC9430111 DOI: 10.1128/spectrum.01730-22] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
SARS-CoV-2 variants exhibit different viral transmissibility and disease severity. However, their impact on erythropoiesis has not been investigated. Here, we show SARS-CoV-2 variants differentially affect erythropoiesis. This is illustrated by the abundance of CD71+ erythroid cells (CECs) in the blood circulation of COVID-19 patients infected with the original Wuhan strain followed by the Delta and Omicron variants. We observed the CD45+CECs are the dominant subpopulation of CECs expressing the receptor, ACE2, and coreceptor, TMPRSS2, and thus, can be targeted by SARS-CoV-2. Also, we found CECs exhibit immunosuppressive properties, specifically CD45+CECs are the dominant immunosuppressive cells and via reactive oxygen species (ROS) and arginase I expression can impair CD8+ T cell functions. In agreement, we observed CECs suppress CD8+ T cell effector (e.g., Granzyme B expression and degranulation capacity [CD107]), which was partially but significantly reversed with l-arginine supplementation. In light of the enriched frequency of CECs, in particular, CD45+CECs in patients infected with the original (Wuhan) strain, we believe this strain has a more prominent impact on hematopoiesis compared with the Delta and Omicron variants. Therefore, our study provides an important insight into the differential impact of SARS-CoV-2 variants on erythropoiesis in COVID-19 patients. IMPORTANCE Silent hypoxia has been the hallmark of SARS-CoV-2 infection. Red blood cells (RBCs) work as gas cargo delivering oxygen to different tissues. However, their immature counterparts reside in the bone marrow and normally absent in the blood circulation. We show SARS-CoV-2 infection is associated with the emergence of immature RBCs so called CD71+ erythroid cells (CECs) in the blood. In particular, we found these cells were more prevalent in the blood of those infected with the SARS-CoV-2 original strain (Wuhan) followed by the Delta and Omicron variants. This suggests SARS-CoV-2 directly or indirectly impacts RBC production. In agreement, we observed immature RBCs express the receptor (ACE2) and coreceptor (TMPRSS2) for SARS-CoV-2. CECs suppress T cells functions (e.g., Granzyme B and degranulation capacity) in vitro. Therefore, our study provides a novel insight into the differential impact of SARS-CoV-2 variants on erythropoiesis and subsequently the hypoxia commonly observed in COVID-19 patients.
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22
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Xu C, He J, Wang H, Zhang Y, Wu J, Zhao L, Li Y, Gao J, Geng G, Wang B, Chen X, Zheng Z, Shen B, Zeng Y, Bai Z, Yang H, Shi S, Dong F, Ma S, Jiang E, Cheng T, Lan Y, Zhou J, Liu B, Shi L. Single-cell transcriptomic analysis identifies an immune-prone population in erythroid precursors during human ontogenesis. Nat Immunol 2022; 23:1109-1120. [PMID: 35761081 DOI: 10.1038/s41590-022-01245-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 05/17/2022] [Indexed: 01/03/2023]
Abstract
Nonimmune cells can have immunomodulatory roles that contribute to healthy development. However, the molecular and cellular mechanisms underlying the immunomodulatory functions of erythroid cells during human ontogenesis remain elusive. Here, integrated, single-cell transcriptomic studies of erythroid cells from the human yolk sac, fetal liver, preterm umbilical cord blood (UCB), term UCB and adult bone marrow (BM) identified classical and immune subsets of erythroid precursors with divergent differentiation trajectories. Immune-erythroid cells were present from the yolk sac to the adult BM throughout human ontogenesis but failed to be generated in vitro from human embryonic stem cells. Compared with classical-erythroid precursors, these immune-erythroid cells possessed dual erythroid and immune regulatory networks, showed immunomodulatory functions and interacted more frequently with various innate and adaptive immune cells. Our findings provide important insights into the nature of immune-erythroid cells and their roles during development and diseases.
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Affiliation(s)
- Changlu Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Jian He
- State Key Laboratory of Proteomics, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China.,Laboratory of Basic Medicine, The General Hospital of Western Theater Command, Chengdu, China
| | - Hongtao Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Yingnan Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Jing Wu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Lu Zhao
- Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
| | - Yue Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Jie Gao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Guangfeng Geng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Bingrui Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Xiaoyuan Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Zhaofeng Zheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Biao Shen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Yang Zeng
- Laboratory of Experimental Hematology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhijie Bai
- State Key Laboratory of Proteomics, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China
| | - Hua Yang
- Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
| | - Shujuan Shi
- Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
| | - Fang Dong
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Shihui Ma
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Erlie Jiang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China
| | - Yu Lan
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China.
| | - Jiaxi Zhou
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. .,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China.
| | - Bing Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. .,State Key Laboratory of Proteomics, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China. .,Laboratory of Experimental Hematology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China. .,Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China.
| | - Lihong Shi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. .,CAMS Center for Stem Cell Medicine, Department of Stem Cell and Regenerative Medicine, PUMC, Tianjin, China.
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23
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Vignjević Petrinović S, Jauković A, Milošević M, Bugarski D, Budeč M. Targeting Stress Erythropoiesis Pathways in Cancer. Front Physiol 2022; 13:844042. [PMID: 35694408 PMCID: PMC9174937 DOI: 10.3389/fphys.2022.844042] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Cancer-related anemia (CRA) is a common multifactorial disorder that adversely affects the quality of life and overall prognosis in patients with cancer. Safety concerns associated with the most common CRA treatment options, including intravenous iron therapy and erythropoietic-stimulating agents, have often resulted in no or suboptimal anemia management for many cancer patients. Chronic anemia creates a vital need to restore normal erythropoietic output and therefore activates the mechanisms of stress erythropoiesis (SE). A growing body of evidence demonstrates that bone morphogenetic protein 4 (BMP4) signaling, along with glucocorticoids, erythropoietin, stem cell factor, growth differentiation factor 15 (GDF15) and hypoxia-inducible factors, plays a pivotal role in SE. Nevertheless, a chronic state of SE may lead to ineffective erythropoiesis, characterized by the expansion of erythroid progenitor pool, that largely fails to differentiate and give rise to mature red blood cells, further aggravating CRA. In this review, we summarize the current state of knowledge on the emerging roles for stress erythroid progenitors and activated SE pathways in tumor progression, highlighting the urgent need to suppress ineffective erythropoiesis in cancer patients and develop an optimal treatment strategy as well as a personalized approach to CRA management.
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Affiliation(s)
- Sanja Vignjević Petrinović
- Laboratory for Neuroendocrinology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Jauković
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Maja Milošević
- Laboratory for Neuroendocrinology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Diana Bugarski
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Mirela Budeč
- Laboratory for Neuroendocrinology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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24
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Development and Validation of a Sensitive Flow Cytometric Method for Determining CECs in RBC Products. Clin Chim Acta 2022; 530:119-125. [DOI: 10.1016/j.cca.2022.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 11/23/2022]
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25
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Zhao GJ, Jiang DW, Cai WC, Chen XY, Dong W, Chen LW, Hong GL, Wu B, Yao YM, Lu ZQ. CD71+ Erythroid Cell Expansion in Adult Sepsis: Potential Causes and Role in Prognosis and Nosocomial Infection Prediction. Front Immunol 2022; 13:830025. [PMID: 35251018 PMCID: PMC8896534 DOI: 10.3389/fimmu.2022.830025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/26/2022] [Indexed: 12/29/2022] Open
Abstract
Background Immune suppression contributes to nosocomial infections (NIs) and poor prognosis in sepsis. Recent studies revealed that CD71+ erythroid cells had unappreciated immunosuppressive functions. This study aimed to investigate the values of CD71+ erythroid cells (CECs) in predicting NIs and prognosis among adult septic patients. The potential factors associated with the expansion of CECs were also explored. Methods In total, 112 septic patients and 32 critically ill controls were enrolled. The frequencies of CD71+ cells, CD71+CD235a+ cells, and CD45+ CECs were measured by flow cytometry. The associations between CECs and NIs and 30-day mortality were assessed by ROC curve analysis and Cox and competing-risk regression models. Factors associated with the frequency of CECs were identified by linear regression analysis. Results The percentage of CD71+ cells, CECs, and CD45+ CECs were higher in septic patients than critically ill controls. In septic patients, the percentages of CD71+ cells, CECs, and CD45+ CECs were associated with NI development, while CD71+ cells and CECs were independently associated with 30-day mortality. Linear regression analysis showed that the levels of interleukin (IL)-6 and interferon (IFN)-γ were positively associated with the frequencies of CD71+ cells, CECs, and CD45+ CECs, while IL-10 was negatively associated with them. Additionally, the levels of red blood cells (RBCs) were negatively associated with the percentage of CD45+ CECs. Conclusions CECs were expanded in sepsis and can serve as independent predictors of the development of NI and 30-day mortality. Low levels of RBCs and high levels of IL-6 and IFN-γ may contribute to the expansion of CECs in sepsis. Trial Registration ChiCTR, ChiCTR1900024887. Registered 2 August 2019, http://www.chictr.org.cn/showproj.aspx?proj=38645
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Affiliation(s)
- Guang-ju Zhao
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Dan-wei Jiang
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wen-chao Cai
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Yan Chen
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wei Dong
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Long-wang Chen
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Guang-liang Hong
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bin Wu
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yong-ming Yao
- Trauma Research Center, Fourth Medical of the Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Zhong-qiu Lu, ; Yong-ming Yao,
| | - Zhong-qiu Lu
- Emergency Intensive Care Unit, Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- *Correspondence: Zhong-qiu Lu, ; Yong-ming Yao,
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26
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Elahi S. Hematopoietic responses to SARS-CoV-2 infection. Cell Mol Life Sci 2022; 79:187. [PMID: 35284964 PMCID: PMC8918078 DOI: 10.1007/s00018-022-04220-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/03/2022] [Accepted: 02/22/2022] [Indexed: 01/09/2023]
Abstract
Under physiological conditions, hematopoietic stem and progenitor cells (HSPCs) in the bone marrow niches are responsible for the highly regulated and interconnected hematopoiesis process. At the same time, they must recognize potential threats and respond promptly to protect the host. A wide spectrum of microbial agents/products and the consequences of infection-induced mediators (e.g. cytokines, chemokines, and growth factors) can have prominent impact on HSPCs. While COVID-19 starts as a respiratory tract infection, it is considered a systemic disease which profoundly alters the hematopoietic system. Lymphopenia, neutrophilia, thrombocytopenia, and stress erythropoiesis are the hallmark of SARS-CoV-2 infection. Moreover, thrombocytopenia and blood hypercoagulability are common among COVID-19 patients with severe disease. Notably, the invasion of erythroid precursors and progenitors by SARS-CoV-2 is a cardinal feature of COVID-19 disease which may in part explain the mechanism underlying hypoxia. These pieces of evidence support the notion of skewed steady-state hematopoiesis to stress hematopoiesis following SARS-CoV-2 infection. The functional consequences of these alterations depend on the magnitude of the effect, which launches a unique hematopoietic response that is associated with increased myeloid at the expense of decreased lymphoid cells. This article reviews some of the key pathways including the infectious and inflammatory processes that control hematopoiesis, followed by a comprehensive review that summarizes the latest evidence and discusses how SARS-CoV-2 infection impacts hematopoiesis.
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Affiliation(s)
- Shokrollah Elahi
- Faculty of Medicine and Dentistry, School of Dentistry, Division of Foundational Sciences, Department of Oncology, and Li Ka Shing Institute of Virology, University of Alberta, 7020 Katz Group Centre, 11361-87th Ave NW, Edmonton, AB T6G 2E1 Canada
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27
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Grzywa TM, Sosnowska A, Rydzynska Z, Lazniewski M, Plewczynski D, Klicka K, Malecka-Gieldowska M, Rodziewicz-Lurzynska A, Ciepiela O, Justyniarska M, Pomper P, Grzybowski MM, Blaszczyk R, Wegrzynowicz M, Tomaszewska A, Basak G, Golab J, Nowis D. Potent but transient immunosuppression of T-cells is a general feature of CD71 + erythroid cells. Commun Biol 2021; 4:1384. [PMID: 34893694 PMCID: PMC8664950 DOI: 10.1038/s42003-021-02914-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 11/23/2021] [Indexed: 02/08/2023] Open
Abstract
CD71+ erythroid cells (CECs) have been recently recognized in both neonates and cancer patients as potent immunoregulatory cells. Here, we show that in mice early-stage CECs expand in anemia, have high levels of arginase 2 (ARG2) and reactive oxygen species (ROS). In the spleens of anemic mice, CECs expansion-induced L-arginine depletion suppresses T-cell responses. In humans with anemia, CECs expand and express ARG1 and ARG2 that suppress T-cells IFN-γ production. Moreover, bone marrow CECs from healthy human donors suppress T-cells proliferation. CECs differentiated from peripheral blood mononuclear cells potently suppress T-cell activation, proliferation, and IFN-γ production in an ARG- and ROS-dependent manner. These effects are the most prominent for early-stage CECs (CD71highCD235adim cells). The suppressive properties disappear during erythroid differentiation as more differentiated CECs and mature erythrocytes lack significant immunoregulatory properties. Our studies provide a novel insight into the role of CECs in the immune response regulation.
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Affiliation(s)
- Tomasz M Grzywa
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Doctoral School of the Medical University of Warsaw, Warsaw, Poland
- Laboratory of Experimental Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Anna Sosnowska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Zuzanna Rydzynska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
| | - Michal Lazniewski
- Laboratory of Functional and Structural Genomics, Centre of New Technologies, University of Warsaw, Warsaw, Poland
- Centre for Advanced Materials and Technologies, Warsaw University of Technology, Warsaw, Poland
| | - Dariusz Plewczynski
- Laboratory of Functional and Structural Genomics, Centre of New Technologies, University of Warsaw, Warsaw, Poland
- Faculty of Mathematics and Information Science, Warsaw University of Technology, Warsaw, Poland
| | - Klaudia Klicka
- Doctoral School of the Medical University of Warsaw, Warsaw, Poland
- Department of Methodology, Medical University of Warsaw, Warsaw, Poland
| | | | | | - Olga Ciepiela
- Department of Laboratory Medicine, Medical University of Warsaw, Warsaw, Poland
| | | | | | | | | | - Michal Wegrzynowicz
- Laboratory of Molecular Basis of Neurodegeneration, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
| | - Agnieszka Tomaszewska
- Department of Hematology, Transplantation and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Grzegorz Basak
- Department of Hematology, Transplantation and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.
- Centre of Preclinical Research, Medical University of Warsaw, Warsaw, Poland.
| | - Dominika Nowis
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.
- Laboratory of Experimental Medicine, Medical University of Warsaw, Warsaw, Poland.
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28
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Mashhouri S, Koleva P, Huynh M, Okoye I, Shahbaz S, Elahi S. Sex Matters: Physiological Abundance of Immuno-Regulatory CD71+ Erythroid Cells Impair Immunity in Females. Front Immunol 2021; 12:705197. [PMID: 34367164 PMCID: PMC8334724 DOI: 10.3389/fimmu.2021.705197] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/05/2021] [Indexed: 11/13/2022] Open
Abstract
Mature erythrocytes are the major metabolic regulators by transporting oxygen throughout the body. However, their precursors and progenitors defined as CD71+ Erythroid Cells (CECs) exhibit a wide range of immunomodulatory properties. Here, we uncover pronounced sexual dimorphism in CECs. We found female but not male mice, both BALB/c and C57BL/6, and human females were enriched with CECs. CECs, mainly their progenitors defined as CD45+CECs expressed higher levels of reactive oxygen species (ROS), PDL-1, VISTA, Arginase II and Arginase I compared to their CD45- counterparts. Consequently, CECs by the depletion of L-arginine suppress T cell activation and proliferation. Expansion of CECs in anemic mice and also post-menstrual cycle in women can result in L-arginine depletion in different microenvironments in vivo (e.g. spleen) resulting in T cell suppression. As proof of concept, we found that anemic female mice and mice adoptively transferred with CECs from anemic mice became more susceptible to Bordetella pertussis infection. These observations highlight the role of sex and anemia-mediated immune suppression in females. Notably, enriched CD45+CECs may explain their higher immunosuppressive properties in female BALB/c mice. Finally, we observed significantly more splenic central macrophages in female mice, which can explain greater extramedullary erythropoiesis and subsequently abundance of CECs in the periphery. Thus, sex-specific differences frequency in the frequency of CECs might be imprinted by differential erythropoiesis niches and hormone-dependent manner.
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Affiliation(s)
- Siavash Mashhouri
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Petya Koleva
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Mai Huynh
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Isobel Okoye
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Shima Shahbaz
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Shokrollah Elahi
- School of Dentistry, Division of Foundational Sciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Department of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
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29
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Kanemasa H, Ishimura M, Eguchi K, Tanaka T, Nanishi E, Shiraishi A, Goto M, Motomura Y, Ohga S. The immunoregulatory function of peripheral blood CD71 + erythroid cells in systemic-onset juvenile idiopathic arthritis. Sci Rep 2021; 11:14396. [PMID: 34257378 PMCID: PMC8277864 DOI: 10.1038/s41598-021-93831-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/30/2021] [Indexed: 12/18/2022] Open
Abstract
CD71+ erythroid cells (CECs) are recognized to have an immunoregulatory function via direct cell-cell interaction and soluble mediators. Circulating CECs appear in newborns or patients with hemolytic and cardiopulmonary disorders. To assess the biological role of CECs in systemic inflammation, we studied the gene expression and function in systemic-onset juvenile idiopathic arthritis (SoJIA). Peripheral blood mononuclear cells of SoJIA patients expressed upregulated erythropoiesis-related genes. It represented the largest expansion of CECs during active phase SoJIA among other inflammatory diseases. Despite the opposing roles of erythropoietin and hepcidin in erythropoiesis, both serum levels were in concert with the amounts of SoJIA-driven CECs. Circulating CECs counts in inflammatory diseases were positively correlated with the levels of C-reactive protein, IL-6, IL-18, or soluble TNF receptors. Co-culture with active SoJIA-driven CECs suppressed secretions of IL-1β, IL-6, and IL-8 from healthy donor monocytes. The top upregulated gene in SoJIA-driven CECs was ARG2 compared with CECs from cord blood controls, although cytokine production from monocytes was suppressed by co-culture, even with an arginase inhibitor. CECs are driven to the periphery during the acute phase of SoJIA at higher levels than other inflammatory diseases. Circulating CECs may control excessive inflammation via the immunoregulatory pathways, partly involving arginase-2.
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Affiliation(s)
- Hikaru Kanemasa
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masataka Ishimura
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Katsuhide Eguchi
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tamami Tanaka
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Etsuro Nanishi
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akira Shiraishi
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Motohiro Goto
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yoshitomo Motomura
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shouichi Ohga
- Departments of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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30
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Grzywa TM, Nowis D, Golab J. The role of CD71 + erythroid cells in the regulation of the immune response. Pharmacol Ther 2021; 228:107927. [PMID: 34171326 DOI: 10.1016/j.pharmthera.2021.107927] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/13/2021] [Accepted: 05/18/2021] [Indexed: 02/07/2023]
Abstract
Complex regulation of the immune response is necessary to support effective defense of an organism against hostile invaders and to maintain tolerance to harmless microorganisms and autoantigens. Recent studies revealed previously unappreciated roles of CD71+ erythroid cells (CECs) in regulation of the immune response. CECs physiologically reside in the bone marrow where erythropoiesis takes place. Under stress conditions, CECs are enriched in some organs outside of the bone marrow as a result of extramedullary erythropoiesis. However, the role of CECs goes well beyond the production of erythrocytes. In neonates, increased numbers of CECs contribute to their vulnerability to infectious diseases. On the other side, neonatal CECs suppress activation of immune cells in response to abrupt colonization with commensal microorganisms after delivery. CECs are also enriched in the peripheral blood of pregnant women as well as in the placenta and are responsible for the regulation of feto-maternal tolerance. In patients with cancer, anemia leads to increased frequency of CECs in the peripheral blood contributing to diminished antiviral and antibacterial immunity, as well as to accelerated cancer progression. Moreover, recent studies revealed the role of CECs in HIV and SARS-CoV-2 infections. CECs use a full arsenal of mechanisms to regulate immune response. These cells suppress proinflammatory responses of myeloid cells and T-cell proliferation by the depletion of ʟ-arginine by arginase. Moreover, CECs produce reactive oxygen species to decrease T-cell proliferation. CECs also secrete cytokines, including transforming growth factor β (TGF-β), which promotes T-cell differentiation into regulatory T-cells. Here, we comprehensively describe the role of CECs in orchestrating immune response and indicate some therapeutic approaches that might be used to regulate their effector functions in the treatment of human conditions.
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Affiliation(s)
- Tomasz M Grzywa
- Department of Immunology, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland; Doctoral School, Medical University of Warsaw, Zwirki and Wigury 61 Street, 02-091 Warsaw, Poland; Laboratory of Experimental Medicine, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland.
| | - Dominika Nowis
- Department of Immunology, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland; Laboratory of Experimental Medicine, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland.
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland; Centre of Preclinical Research, Medical University of Warsaw, Banacha 1b Street, 02-097 Warsaw, Poland.
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31
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Shahbaz S, Xu L, Osman M, Sligl W, Shields J, Joyce M, Tyrrell DL, Oyegbami O, Elahi S. Erythroid precursors and progenitors suppress adaptive immunity and get invaded by SARS-CoV-2. Stem Cell Reports 2021; 16:1165-1181. [PMID: 33979601 PMCID: PMC8111797 DOI: 10.1016/j.stemcr.2021.04.001] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 01/08/2023] Open
Abstract
SARS-CoV-2 infection is associated with lower blood oxygen levels, even in patients without hypoxia requiring hospitalization. This discordance illustrates the need for a more unifying explanation as to whether SARS-CoV-2 directly or indirectly affects erythropoiesis. Here, we show significantly enriched CD71+ erythroid precursors/progenitors in the blood circulation of COVID-19 patients. We found that these cells have distinctive immunosuppressive properties. In agreement, we observed a strong negative correlation between the frequency of these cells with T and B cell proportions in COVID-19 patients. The expansion of these CD71+ erythroid precursors/progenitors was negatively correlated with the hemoglobin levels. A subpopulation of abundant erythroid cells, CD45+ CD71+ cells, co-express ACE2, TMPRSS2, CD147, and CD26, and these can be infected with SARS-CoV-2. In turn, pre-treatment of erythroid cells with dexamethasone significantly diminished ACE2/TMPRSS2 expression and subsequently reduced their infectivity with SARS-CoV-2. This provides a novel insight into the impact of SARS-CoV-2 on erythropoiesis and hypoxia seen in COVID-19 patients.
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Affiliation(s)
- Shima Shahbaz
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - Lai Xu
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - Mohammed Osman
- Department of Medicine, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - Wendy Sligl
- Department of Medicine, University of Alberta, Edmonton, T6G2E1, AB, Canada; Department of Critical Care Medicine, University of Alberta, Edmonton, T6G2E1, AB, Canada; Division of Infectious Diseases, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - Justin Shields
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, T6G2E1, AB, Canada; Li Ka Shing Institute of Virology, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - Michael Joyce
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, T6G2E1, AB, Canada; Li Ka Shing Institute of Virology, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - D Lorne Tyrrell
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, T6G2E1, AB, Canada; Li Ka Shing Institute of Virology, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - Olaide Oyegbami
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, T6G2E1, AB, Canada
| | - Shokrollah Elahi
- School of Dentistry, Division of Foundational Sciences, University of Alberta, Edmonton, T6G2E1, AB, Canada; Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, T6G2E1, AB, Canada; Li Ka Shing Institute of Virology, University of Alberta, Edmonton, T6G2E1, AB, Canada; Department of Medical Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, T6G2E1, AB, Canada.
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32
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Rinchai D, Roelands J, Toufiq M, Hendrickx W, Altman MC, Bedognetti D, Chaussabel D. BloodGen3Module: Blood transcriptional module repertoire analysis and visualization using R. Bioinformatics 2021; 37:2382-2389. [PMID: 33624743 PMCID: PMC8388021 DOI: 10.1093/bioinformatics/btab121] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 01/14/2021] [Accepted: 02/23/2021] [Indexed: 11/28/2022] Open
Abstract
Motivation We previously described the construction and characterization of fixed reusable blood transcriptional module repertoires. More recently we released a third iteration (‘BloodGen3’ module repertoire) that comprises 382 functionally annotated modules and encompasses 14 168 transcripts. Custom bioinformatic tools are needed to support downstream analysis, visualization and interpretation relying on such fixed module repertoires. Results We have developed and describe here an R package, BloodGen3Module. The functions of our package permit group comparison analyses to be performed at the module-level, and to display the results as annotated fingerprint grid plots. A parallel workflow for computing module repertoire changes for individual samples rather than groups of samples is also available; these results are displayed as fingerprint heatmaps. An illustrative case is used to demonstrate the steps involved in generating blood transcriptome repertoire fingerprints of septic patients. Taken together, this resource could facilitate the analysis and interpretation of changes in blood transcript abundance observed across a wide range of pathological and physiological states. Availability and implementation The BloodGen3Module package and documentation are freely available from Github: https://github.com/Drinchai/BloodGen3Module. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
| | | | | | | | - Matthew C Altman
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, USA.,Systems Immunology, Benaroya Research Institute, Seattle, Washington, USA
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33
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Grzywa TM, Justyniarska M, Nowis D, Golab J. Tumor Immune Evasion Induced by Dysregulation of Erythroid Progenitor Cells Development. Cancers (Basel) 2021; 13:870. [PMID: 33669537 PMCID: PMC7922079 DOI: 10.3390/cancers13040870] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer cells harness normal cells to facilitate tumor growth and metastasis. Within this complex network of interactions, the establishment and maintenance of immune evasion mechanisms are crucial for cancer progression. The escape from the immune surveillance results from multiple independent mechanisms. Recent studies revealed that besides well-described myeloid-derived suppressor cells (MDSCs), tumor-associated macrophages (TAMs) or regulatory T-cells (Tregs), erythroid progenitor cells (EPCs) play an important role in the regulation of immune response and tumor progression. EPCs are immature erythroid cells that differentiate into oxygen-transporting red blood cells. They expand in the extramedullary sites, including the spleen, as well as infiltrate tumors. EPCs in cancer produce reactive oxygen species (ROS), transforming growth factor β (TGF-β), interleukin-10 (IL-10) and express programmed death-ligand 1 (PD-L1) and potently suppress T-cells. Thus, EPCs regulate antitumor, antiviral, and antimicrobial immunity, leading to immune suppression. Moreover, EPCs promote tumor growth by the secretion of growth factors, including artemin. The expansion of EPCs in cancer is an effect of the dysregulation of erythropoiesis, leading to the differentiation arrest and enrichment of early-stage EPCs. Therefore, anemia treatment, targeting ineffective erythropoiesis, and the promotion of EPC differentiation are promising strategies to reduce cancer-induced immunosuppression and the tumor-promoting effects of EPCs.
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Affiliation(s)
- Tomasz M. Grzywa
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
- Laboratory of Experimental Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Magdalena Justyniarska
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
| | - Dominika Nowis
- Laboratory of Experimental Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
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34
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Rinchai D, Altman MC, Konza O, Hässler S, Martina F, Toufiq M, Garand M, Kabeer BSA, Palucka K, Mejias A, Ramilo O, Bedognetti D, Mariotti‐Ferrandiz E, Klatzmann D, Chaussabel D. Definition of erythroid cell-positive blood transcriptome phenotypes associated with severe respiratory syncytial virus infection. Clin Transl Med 2020; 10:e244. [PMID: 33377660 PMCID: PMC7733317 DOI: 10.1002/ctm2.244] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 12/31/2022] Open
Abstract
Biomarkers to assess the risk of developing severe respiratory syncytial virus (RSV) infection are needed. We conducted a meta-analysis of 490 unique profiles from six public RSV blood transcriptome datasets. A repertoire of 382 well-characterized transcriptional modules was used to define dominant host responses to RSV infection. The consolidated RSV cohort was stratified according to four traits: "interferon response" (IFN), "neutrophil-driven inflammation" (Infl), "cell cycle" (CC), and "erythrocytes" (Ery). We identified eight prevalent blood transcriptome phenotypes, of which three Ery+ phenotypes comprised higher proportions of patients requiring intensive care. This finding confirms on a larger scale data from one of our earlier reports describing an association between an erythrocyte signature and RSV disease severity. Further contextual interpretation made it possible to associate this signature with immunosuppressive states (late stage cancer, pharmacological immunosuppression), and with a population of fetal glycophorin A+ erythroid precursors. Furthermore, we posit that this erythrocyte cell signature may be linked to a population of immunosuppressive erythroid cells previously described in the literature, and that overabundance of this cell population in RSV patients may underlie progression to severe disease. These findings outline potential priority areas for biomarker development and investigations into the immune biology of RSV infection. The approach that we developed and employed here should also permit to delineate prevalent blood transcriptome phenotypes in other settings.
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Affiliation(s)
| | - Matthew C. Altman
- Benaroya Research InstituteSeattleWashington
- University of WashingtonSeattleWashington
| | - Oceane Konza
- Biotherapy (CIC‐BTi) and Inflammation‐Immunopathology‐Biotherapy Department (i2B)AP‐HP, Hôpital Pitié‐SalpêtrièreParisFrance
| | - Signe Hässler
- Biotherapy (CIC‐BTi) and Inflammation‐Immunopathology‐Biotherapy Department (i2B)AP‐HP, Hôpital Pitié‐SalpêtrièreParisFrance
- Immunology‐Immunopathology‐Immunotherapy (i3)Sorbonne UniversitéINSERMParisFrance
| | - Federica Martina
- Biotherapy (CIC‐BTi) and Inflammation‐Immunopathology‐Biotherapy Department (i2B)AP‐HP, Hôpital Pitié‐SalpêtrièreParisFrance
| | | | | | | | | | - Asuncion Mejias
- Division of Infectious DiseasesNationwide Children's HospitalColumbusOhio
| | - Octavio Ramilo
- Division of Infectious DiseasesNationwide Children's HospitalColumbusOhio
| | - Davide Bedognetti
- Sidra MedicineDohaQatar
- Department of Internal Medicine and Medical SpecialtiesUniversity of GenoaGenoaItaly
| | | | - David Klatzmann
- Biotherapy (CIC‐BTi) and Inflammation‐Immunopathology‐Biotherapy Department (i2B)AP‐HP, Hôpital Pitié‐SalpêtrièreParisFrance
- Immunology‐Immunopathology‐Immunotherapy (i3)Sorbonne UniversitéINSERMParisFrance
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35
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Elahi S, Vega-López MA, Herman-Miguel V, Ramírez-Estudillo C, Mancilla-Ramírez J, Motyka B, West L, Oyegbami O. CD71 + Erythroid Cells in Human Neonates Exhibit Immunosuppressive Properties and Compromise Immune Response Against Systemic Infection in Neonatal Mice. Front Immunol 2020; 11:597433. [PMID: 33329589 PMCID: PMC7732591 DOI: 10.3389/fimmu.2020.597433] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/29/2020] [Indexed: 01/08/2023] Open
Abstract
Newborns are highly susceptible to infectious diseases. The underlying mechanism of neonatal infection susceptibility has generally been related to their under-developed immune system. Nevertheless, this notion has recently been challenged by the discovery of the physiological abundance of immunosuppressive erythroid precursors CD71+ erythroid cells (CECs) in newborn mice and human cord blood. Here, as proof of concept, we show that these cells are also abundant in the peripheral blood of human newborns. Although their frequency appears to be more variable compared to their counterparts in mice, they rapidly decline by 4 weeks of age. However, their proportion remains significantly higher in infants up to six months of age compared to older infants. We found CD45 expressing CECs, as erythroid progenitors, were the prominent source of reactive oxygen species (ROS) production in both humans and mice. Interestingly, a higher proportion of CD45+CECs was observed in the spleen versus bone marrow of neonatal mice, which was associated with a higher ROS production by splenic CECs compared to their siblings in the bone marrow. CECs from human newborns suppressed cytokine production by CD14 monocytes and T cells, which was partially abrogated by apocynin in vitro. Moreover, the depletion of CECs in neonatal mice increased the number of activated effector immune cells in their spleen and liver, which rendered them more resistant to Listeria monocytogenes infection. This was evident by a significant reduction in the bacteria load in the spleen, liver and brain of treated-mice compared to the control group, which enhanced their survival rate. Our finding highlights the immunoregulatory processes mediated by CECs in newborns. Thus, such tightly regulated immune system in newborns/infants may explain one potential mechanism for the asymptomatic or mild COVID-19 infection in this population.
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Affiliation(s)
- Shokrollah Elahi
- School of Dentistry, University of Alberta, Edmonton, AB, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton AB, Canada.,Department of Oncology, University of Alberta, Edmonton, AB, Canada.,Faculty of Medicine and Dentistry, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
| | - Marco Antonio Vega-López
- Dept. Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Mexico City, Mexico
| | - Vladimir Herman-Miguel
- Dept. Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Mexico City, Mexico
| | - Carmen Ramírez-Estudillo
- Dept. Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Mexico City, Mexico
| | - Javier Mancilla-Ramírez
- Escuela Superior deMedicina, Instituto Politecnico Nacional, Hospital de la Mujer, Secretaria de Salud, Mexico City, Mexico
| | - Bruce Motyka
- Alberta Transplant Institute and the Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada.,Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Lori West
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton AB, Canada.,Alberta Transplant Institute and the Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada.,Department of Pediatrics, University of Alberta, Edmonton, AB, Canada.,Department of Surgery, University of Alberta, Edmonton, AB, Canada.,Department of Laboratory Medicine & Pathology, University of Alberta, Edmonton, AB, Canada
| | - Olaide Oyegbami
- School of Dentistry, University of Alberta, Edmonton, AB, Canada
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36
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Xie X, Liu M, Zhang Y, Wang B, Zhu C, Wang C, Li Q, Huo Y, Guo J, Xu C, Hu L, Pang A, Ma S, Wang L, Cao W, Chen S, Li Q, Zhang S, Zhao X, Zhou W, Luo H, Zheng G, Jiang E, Feng S, Chen L, Shi L, Cheng H, Hao S, Zhu P, Cheng T. Single-cell transcriptomic landscape of human blood cells. Natl Sci Rev 2020; 8:nwaa180. [PMID: 34691592 PMCID: PMC8288407 DOI: 10.1093/nsr/nwaa180] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/16/2020] [Accepted: 07/31/2020] [Indexed: 12/20/2022] Open
Abstract
High throughput single-cell RNA-seq has been successfully implemented to dissect the cellular and molecular features underlying hematopoiesis. However, an elaborate and comprehensive transcriptome reference of the whole blood system is lacking. Here, we profiled the transcriptomes of 7551 human blood cells representing 32 immunophenotypic cell types, including hematopoietic stem cells, progenitors and mature blood cells derived from 21 healthy donors. With high sequencing depth and coverage, we constructed a single-cell transcriptional atlas of blood cells (ABC) on the basis of both protein-coding genes and long noncoding RNAs (lncRNAs), and showed a high consistence between them. Notably, putative lncRNAs and transcription factors regulating hematopoietic cell differentiation were identified. While common transcription factor regulatory networks were activated in neutrophils and monocytes, lymphoid cells dramatically changed their regulatory networks during differentiation. Furthermore, we showed a subset of nucleated erythrocytes actively expressing immune signals, suggesting the existence of erythroid precursors with immune functions. Finally, a web portal offering transcriptome browsing and blood cell type prediction has been established. Thus, our work provides a transcriptional map of human blood cells at single-cell resolution, thereby offering a comprehensive reference for the exploration of physiological and pathological hematopoiesis.
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Affiliation(s)
- Xiaowei Xie
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Mengyao Liu
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Yawen Zhang
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Bingrui Wang
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Caiying Zhu
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Chenchen Wang
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Qing Li
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Yingying Huo
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Jiaojiao Guo
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Changlu Xu
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Linping Hu
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Aiming Pang
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Shihui Ma
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Lina Wang
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Wenbin Cao
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Shulian Chen
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Qiuling Li
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Sudong Zhang
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Xueying Zhao
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Wen Zhou
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Hongbo Luo
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Guoguang Zheng
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Erlie Jiang
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Sizhou Feng
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Lixiang Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Lihong Shi
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Hui Cheng
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Sha Hao
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Ping Zhu
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology and National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- Center for Stem Cell Medicine and Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
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Rinchai D, Syed Ahamed Kabeer B, Toufiq M, Tatari-Calderone Z, Deola S, Brummaier T, Garand M, Branco R, Baldwin N, Alfaki M, Altman MC, Ballestrero A, Bassetti M, Zoppoli G, De Maria A, Tang B, Bedognetti D, Chaussabel D. A modular framework for the development of targeted Covid-19 blood transcript profiling panels. J Transl Med 2020; 18:291. [PMID: 32736569 PMCID: PMC7393249 DOI: 10.1186/s12967-020-02456-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Covid-19 morbidity and mortality are associated with a dysregulated immune response. Tools are needed to enhance existing immune profiling capabilities in affected patients. Here we aimed to develop an approach to support the design of targeted blood transcriptome panels for profiling the immune response to SARS-CoV-2 infection. METHODS We designed a pool of candidates based on a pre-existing and well-characterized repertoire of blood transcriptional modules. Available Covid-19 blood transcriptome data was also used to guide this process. Further selection steps relied on expert curation. Additionally, we developed several custom web applications to support the evaluation of candidates. RESULTS As a proof of principle, we designed three targeted blood transcript panels, each with a different translational connotation: immunological relevance, therapeutic development relevance and SARS biology relevance. CONCLUSION Altogether the work presented here may contribute to the future expansion of immune profiling capabilities via targeted profiling of blood transcript abundance in Covid-19 patients.
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Affiliation(s)
| | | | | | | | | | - Tobias Brummaier
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | | | | | - Nicole Baldwin
- Baylor Institute for Immunology Research and Baylor Research Institute, Dallas, TX, USA
| | | | - Matthew C Altman
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA, USA
- Systems Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Alberto Ballestrero
- Department of Internal Medicine, Università degli Studi di Genova, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Matteo Bassetti
- Division of Infectious and Tropical Diseases, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Gabriele Zoppoli
- Department of Internal Medicine, Università degli Studi di Genova, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Andrea De Maria
- Division of Infectious and Tropical Diseases, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Benjamin Tang
- Nepean Clinical School, University of Sydney, Sydney, NSW, Australia
| | - Davide Bedognetti
- Sidra Medicine, Doha, Qatar
- Department of Internal Medicine, Università degli Studi di Genova, Genoa, Italy
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38
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Yang L, Shivakumar P, Kinder J, Way SS, Donnelly B, Mourya R, Luo Z, Bezerra JA. Regulation of bile duct epithelial injury by hepatic CD71+ erythroid cells. JCI Insight 2020; 5:135751. [PMID: 32407296 PMCID: PMC7308060 DOI: 10.1172/jci.insight.135751] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/29/2020] [Indexed: 02/06/2023] Open
Abstract
Extramedullary hematopoietic cells are present in the liver of normal neonates in the first few days of life and persist in infants with biliary atresia. Based on a previous report that liver genes are enriched by erythroid pathways, we examined the liver gene expression pattern at diagnosis and found the top 5 enriched pathways are related to erythrocyte pathobiology in children who survived with the native liver beyond 2 years of age. Using immunostaining, anti-CD71 antibodies identified CD71+ erythroid cells among extramedullary hematopoietic cells in the livers at the time of diagnosis. In mechanistic experiments, the preemptive antibody depletion of hepatic CD71+ erythroid cells in neonatal mice rendered them resistant to rhesus rotavirus-induced (RRV-induced) biliary atresia. The depletion of CD71+ erythroid cells increased the number of effector lymphocytes and delayed the RRV infection of livers and extrahepatic bile ducts. In coculture experiments, CD71+ erythroid cells suppressed the activation of hepatic mononuclear cells. These data uncover an immunoregulatory role for CD71+ erythroid cells in the neonatal liver.
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Affiliation(s)
- Li Yang
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Division of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Pranavkumar Shivakumar
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jeremy Kinder
- Division of Infectious Diseases and Perinatal Institute and
| | - Sing Sing Way
- Division of Infectious Diseases and Perinatal Institute and
| | - Bryan Donnelly
- Division of Pediatric and Thoracic Surgery, CCHMC, Ohio, USA
| | - Reena Mourya
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Zhenhua Luo
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou City, Guangdong, China
| | - Jorge A. Bezerra
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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39
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Shim YA, Campbell T, Weliwitigoda A, Dosanjh M, Johnson P. Regulation of CD71 +TER119 + erythroid progenitor cells by CD45. Exp Hematol 2020; 86:53-66.e1. [PMID: 32450207 DOI: 10.1016/j.exphem.2020.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 05/01/2020] [Accepted: 05/16/2020] [Indexed: 12/18/2022]
Abstract
Red blood cells are generated daily to replenish dying cells and maintain erythrocyte homeostasis. Erythropoiesis is driven by erythropoietin and supported by specialized red pulp macrophages that facilitate enucleation. Here we show that the leukocyte-specific tyrosine phosphatase CD45 is downregulated in late erythroid development, yet it regulates the CD71+TER119+ progenitor pool, which includes the Pro E, Ery A, and Ery B populations. The CD71+TER119+ progenitors are a major splenic population in neonates required for extramedullary erythropoiesis, to meet the high demand for red blood cells during growth. This population decreases as the mice mature, but this was not the case in CD45-deficient mice, which maintained a high level of these progenitors in the spleen into adulthood. Despite these increased erythroid progenitors, CD45-deficient mice had normal numbers of mature red blood cells. This was attributed to the increased proliferation of the Pro E and Ery A populations and the increased apoptosis of the CD71+TER119+ population, as well as an increased turnover of circulating red blood cells. The expansion of the CD71+TER119+ population in the absence of CD45 was attributed to increased numbers of red pulp macrophages producing erythropoietin in the spleen. Thus, CD45 regulates extramedullary erythropoiesis in the spleen.
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Affiliation(s)
- Yaein A Shim
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Teresa Campbell
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Asanga Weliwitigoda
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Manisha Dosanjh
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Pauline Johnson
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada.
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40
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Elahi S, Mashhouri S. Immunological consequences of extramedullary erythropoiesis: immunoregulatory functions of CD71 + erythroid cells. Haematologica 2020; 105:1478-1483. [PMID: 32354873 PMCID: PMC7271582 DOI: 10.3324/haematol.2019.243063] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 04/06/2020] [Indexed: 12/22/2022] Open
Affiliation(s)
- Shokrollah Elahi
- School of Dentistry, University of Alberta, Alberta .,Department of Medical Microbiology and Immunology, University of Alberta, Alberta.,Department of Medical Oncology, Faculty of Medicine and Dentistry, University of Alberta, Alberta.,Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada
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41
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CD71 + Erythroid Cells Exacerbate HIV-1 Susceptibility, Mediate trans-Infection, and Harbor Infective Viral Particles. mBio 2019; 10:mBio.02767-19. [PMID: 31772057 PMCID: PMC6879723 DOI: 10.1128/mbio.02767-19] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Immature red blood cells (erythroid precursors or CD71+ erythroid cells) have a wide range of immunomodulatory properties. In this study, we found that these erythroid precursors are abundant in the human cord blood/placental tissues, in the blood of HIV-infected and anemic individuals. We observed that these cells exacerbate HIV-1 replication/infection in target cells and even make HIV target cells more permissible to HIV infection. In addition, we found that HIV gets a free ride by binding on the surface of these cells and thus can travel to different parts of the body. In agreement, we noticed a positive correlation between the plasma viral load and the frequency of these cells in HIV patients. More importantly, we observed that infective HIV particles reside inside these erythroid precursors but not mature red blood cells. Therefore, these cells by harboring HIV can play an important role in HIV pathogenesis. CD71+ erythroid cells (CECs) have a wide range of immunomodulatory properties. Here, we show that CECs are expanded in the peripheral blood of HIV patients, with a positive correlation between their frequency and the plasma viral load. CECs from HIV patients and human cord blood/placenta exacerbate HIV-1 infection/replication when cocultured with CD4+ T cells, and that preexposure of CD4+ T cells to CECs enhances their permissibility to HIV infection. However, mature red blood cells (RBCs) do not enhance HIV replication when cocultured with CD4+ T cells. We also found CECs express substantial levels of the NOX2 gene and via a mitochondrial reactive oxygen species (ROS)-dependent mechanism possibly upregulate NF-κB in CD4+ T cells once cocultured, which affects the cell cycle machinery to facilitate HIV-1 replication. The complement receptor-1 (CD35) and the Duffy antigen receptor for chemokines (DARC) as potential HIV target molecules are expressed significantly higher on CECs compared to mature red blood cells. Blocking CD35 or DARC substantially abolishes HIV-1 transmission by RBCs to uninfected CD4+ T cells but not by CECs. In contrast, we observed CECs bind to HIV-1 via CD235a and subsequently transfer the virus to uninfected CD4+ T cells, which can be partially blocked by the anti-CD235a antibody. More importantly, we found that CECs from HIV-infected individuals in the presence of antiretroviral therapy harbor infective viral particles, which mediate HIV-1 trans-infection of CD4+ T cells. Therefore, our findings provide a novel insight into the role of CECs in HIV pathogenesis as potential contributing cells in viral persistence and transmission.
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