1
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Liu Z, Li X, Muhammad A, Sun Q, Zhang Q, Wang Y, Wang Y, Ren J, Wang D. PACSIN1 promotes immunosuppression in gastric cancer by degrading MHC-I. Acta Biochim Biophys Sin (Shanghai) 2024. [PMID: 38826133 DOI: 10.3724/abbs.2024059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024] Open
Abstract
Gastric cancer (GC) is a common gastrointestinal system malignancy. PACSIN1 functions as an oncogene in various cancers. This study aims to investigate the potential of PACSIN1 as a target in GC treatment. Gene expression is determined by RT-qPCR, immunofluorescence staining, and immunohistochemistry assay. FISH is performed to determine the colocalization of PACSIN1 and the major histocompatibility complex (MHC-I). Cytokine release and cell functions are analyzed by flow cytometry. In vivo assays are also conducted. Histological analysis is performed using H&E staining. The results show that PACSIN1 is overexpressed in GC patients, especially in those with immunologically-cold tumors. A high level of PACSIN1 is associated with poor prognosis. PACSIN1 deficiency inhibits autophagy but increases antigen presentation in GC cells. Moreover, PACSIN1 deficiency inhibits the lysosomal fusion and selective autophagy of MHC-I, increases CD8 + T-cell infiltration, and suppresses tumor growth and liver metastasis in vivo. Additionally, PACSIN1 knockout enhances the chemosensitivity of cells to immune checkpoint blockade. In summary, PACSIN1 mediates lysosomal fusion and selective autophagy of MHC-I and suppresses antigen presentation and CD8 + T-cell infiltration, thus inhibiting antitumor immunity in GC.
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Affiliation(s)
- Zhu Liu
- The Yangzhou School of Clinical Medicine of Nanjing Medical University, Yangzhou 225001, China
- Northern Jiangsu People's Hospital, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
| | - Xin Li
- Northern Jiangsu People's Hospital, Yangzhou 225001, China
- Department of Pharmacy, Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - Ali Muhammad
- Clinical Medical College, Yangzhou University, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
| | - Qiannan Sun
- Northern Jiangsu People's Hospital, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
| | - Qi Zhang
- Northern Jiangsu People's Hospital, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
| | - Yang Wang
- Clinical Medical College, Yangzhou University, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
| | - Yong Wang
- Northern Jiangsu People's Hospital, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
| | - Jun Ren
- Clinical Medical College, Yangzhou University, Yangzhou 225001, China
- Northern Jiangsu People's Hospital, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
| | - Daorong Wang
- The Yangzhou School of Clinical Medicine of Nanjing Medical University, Yangzhou 225001, China
- Clinical Medical College, Yangzhou University, Yangzhou 225001, China
- Northern Jiangsu People's Hospital, Yangzhou 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou 225001, China
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2
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Wu Z, Shih B, Macdonald J, Meunier D, Hogan K, Chintoan-Uta C, Gilhooley H, Hu T, Beltran M, Henderson NC, Sang HM, Stevens MP, McGrew MJ, Balic A. Development and function of chicken XCR1 + conventional dendritic cells. Front Immunol 2023; 14:1273661. [PMID: 37954617 PMCID: PMC10634274 DOI: 10.3389/fimmu.2023.1273661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/06/2023] [Indexed: 11/14/2023] Open
Abstract
Conventional dendritic cells (cDCs) are antigen-presenting cells (APCs) that play a central role in linking innate and adaptive immunity. cDCs have been well described in a number of different mammalian species, but remain poorly characterised in the chicken. In this study, we use previously described chicken cDC specific reagents, a novel gene-edited chicken line and single-cell RNA sequencing (scRNAseq) to characterise chicken splenic cDCs. In contrast to mammals, scRNAseq analysis indicates that the chicken spleen contains a single, chemokine receptor XCR1 expressing, cDC subset. By sexual maturity the XCR1+ cDC population is the most abundant mononuclear phagocyte cell subset in the chicken spleen. scRNAseq analysis revealed substantial heterogeneity within the chicken splenic XCR1+ cDC population. Immature MHC class II (MHCII)LOW XCR1+ cDCs expressed a range of viral resistance genes. Maturation to MHCIIHIGH XCR1+ cDCs was associated with reduced expression of anti-viral gene expression and increased expression of genes related to antigen presentation via the MHCII and cross-presentation pathways. To visualise and transiently ablate chicken XCR1+ cDCs in situ, we generated XCR1-iCaspase9-RFP chickens using a CRISPR-Cas9 knockin transgenesis approach to precisely edit the XCR1 locus, replacing the XCR1 coding region with genes for a fluorescent protein (TagRFP), and inducible Caspase 9. After inducible ablation, the chicken spleen is initially repopulated by immature CD1.1+ XCR1+ cDCs. XCR1+ cDCs are abundant in the splenic red pulp, in close association with CD8+ T-cells. Knockout of XCR1 prevented this clustering of cDCs with CD8+ T-cells. Taken together these data indicate a conserved role for chicken and mammalian XCR1+ cDCs in driving CD8+ T-cells responses.
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Affiliation(s)
- Zhiguang Wu
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Barbara Shih
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, United Kingdom
| | - Joni Macdonald
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Dominique Meunier
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Kris Hogan
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | | | - Hazel Gilhooley
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Tuanjun Hu
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Mariana Beltran
- Centre for Inflammation Research, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Neil C. Henderson
- Centre for Inflammation Research, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
- Medical Research Council (MRC) Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Helen M. Sang
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Mark P. Stevens
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Michael J. McGrew
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Adam Balic
- The Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, Australia
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3
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Valente M, Collinet N, Vu Manh TP, Popoff D, Rahmani K, Naciri K, Bessou G, Rua R, Gil L, Mionnet C, Milpied P, Tomasello E, Dalod M. Novel mouse models based on intersectional genetics to identify and characterize plasmacytoid dendritic cells. Nat Immunol 2023; 24:714-728. [PMID: 36928414 PMCID: PMC10063451 DOI: 10.1038/s41590-023-01454-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 02/03/2023] [Indexed: 03/18/2023]
Abstract
Plasmacytoid dendritic cells (pDCs) are the main source of type I interferon (IFN-I) during viral infections. Their other functions are debated, due to a lack of tools to identify and target them in vivo without affecting pDC-like cells and transitional DCs (tDCs), which harbor overlapping phenotypes and transcriptomes but a higher efficacy for T cell activation. In the present report, we present a reporter mouse, pDC-Tom, designed through intersectional genetics based on unique Siglech and Pacsin1 coexpression in pDCs. The pDC-Tom mice specifically tagged pDCs and, on breeding with Zbtb46GFP mice, enabled transcriptomic profiling of all splenic DC types, unraveling diverging activation of pDC-like cells versus tDCs during a viral infection. The pDC-Tom mice also revealed initially similar but later divergent microanatomical relocation of splenic IFN+ versus IFN- pDCs during infection. The mouse models and specific gene modules we report here will be useful to delineate the physiological functions of pDCs versus other DC types.
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Affiliation(s)
- Michael Valente
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France.
- Veracyte, Luminy biotech entreprises, Marseille, France.
| | - Nils Collinet
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Thien-Phong Vu Manh
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Dimitri Popoff
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Khalissa Rahmani
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Karima Naciri
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Gilles Bessou
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Rejane Rua
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Laurine Gil
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Cyrille Mionnet
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Pierre Milpied
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Elena Tomasello
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France.
| | - Marc Dalod
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France.
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4
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Severe COVID-19 patients have impaired plasmacytoid dendritic cell-mediated control of SARS-CoV-2. Nat Commun 2023; 14:694. [PMID: 36755036 PMCID: PMC9907212 DOI: 10.1038/s41467-023-36140-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/18/2023] [Indexed: 02/10/2023] Open
Abstract
Type I and III interferons (IFN-I/λ) are important antiviral mediators against SARS-CoV-2 infection. Here, we demonstrate that plasmacytoid dendritic cells (pDC) are the predominant IFN-I/λ source following their sensing of SARS-CoV-2-infected cells. Mechanistically, this short-range sensing by pDCs requires sustained integrin-mediated cell adhesion with infected cells. In turn, pDCs restrict viral spread by an IFN-I/λ response directed toward SARS-CoV-2-infected cells. This specialized function enables pDCs to efficiently turn-off viral replication, likely via a local response at the contact site with infected cells. By exploring the pDC response in SARS-CoV-2 patients, we further demonstrate that pDC responsiveness inversely correlates with the severity of the disease. The pDC response is particularly impaired in severe COVID-19 patients. Overall, we propose that pDC activation is essential to control SARS-CoV-2-infection. Failure to develop this response could be important to understand severe cases of COVID-19.
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5
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Abstract
Dendritic cells (DCs) are key regulators of both innate and adaptive immunity via varied functions, including cytokine production and antigen presentation. Plasmacytoid DC (pDC) is a DC subset specialized in the production of type I and III interferons (IFNs). They are thus pivotal players of the host antiviral response during the acute phase of infection by genetically distant viruses. The pDC response is primarily triggered by the endolysosomal sensors Toll-like receptors, which recognize nucleic acids from pathogens. In some pathologic contexts, pDC response can also be triggered by host nucleic acids, hereby contributing to the pathogenesis of autoimmune diseases, such as, e.g., systemic lupus erythematosus. Importantly, recent in vitro studies from our laboratory and others uncovered that pDCs sense viral infections when a physical contact is established with infected cells. This specialized synapse-like feature enables a robust type I and III IFN secretion at the infected site. Therefore, this concentrated and confined response likely limits the correlated deleterious impacts of excessive cytokine production to the host, notably due to tissue damages. Here we provide a pipeline of methods for ex vivo studies of pDC antiviral functions, designed to address how pDC activation is regulated by cell-cell contact with virally infected cells and the current approaches enabling to decipher the underlying molecular events leading to an efficient antiviral response.
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6
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Dumont V, Lehtonen S. PACSIN proteins in vivo: Roles in development and physiology. Acta Physiol (Oxf) 2022; 234:e13783. [PMID: 34990060 PMCID: PMC9285741 DOI: 10.1111/apha.13783] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/15/2021] [Accepted: 01/01/2022] [Indexed: 12/22/2022]
Abstract
Protein kinase C and casein kinase substrate in neurons (PACSINs), or syndapins (synaptic dynamin‐associated proteins), are a family of proteins involved in the regulation of cell cytoskeleton, intracellular trafficking and signalling. Over the last twenty years, PACSINs have been mostly studied in the in vitro and ex vivo settings, and only in the last decade reports on their function in vivo have emerged. We first summarize the identification, structure and cellular functions of PACSINs, and then focus on the relevance of PACSINs in vivo. During development in various model organisms, PACSINs participate in diverse processes, such as neural crest cell development, gastrulation, laterality development and neuromuscular junction formation. In mouse, PACSIN2 regulates angiogenesis during retinal development and in human, PACSIN2 associates with monosomy and embryonic implantation. In adulthood, PACSIN1 has been extensively studied in the brain and shown to regulate neuromorphogenesis, receptor trafficking and synaptic plasticity. Several genetic studies suggest a role for PACSIN1 in the development of schizophrenia, which is also supported by the phenotype of mice depleted of PACSIN1. PACSIN2 plays an essential role in the maintenance of intestinal homeostasis and participates in kidney repair processes after injury. PACSIN3 is abundant in muscle tissue and necessary for caveolar biogenesis to create membrane reservoirs, thus controlling muscle function, and has been linked to certain genetic muscular disorders. The above examples illustrate the importance of PACSINs in diverse physiological or tissue repair processes in various organs, and associations to diseases when their functions are disturbed.
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Affiliation(s)
- Vincent Dumont
- Department of Pathology and Research Program for Clinical and Molecular Metabolism Faculty of Medicine University of Helsinki Helsinki Finland
| | - Sanna Lehtonen
- Department of Pathology and Research Program for Clinical and Molecular Metabolism Faculty of Medicine University of Helsinki Helsinki Finland
- Department of Pathology University of Helsinki Helsinki Finland
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7
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Dalod M, Scheu S. Dendritic cell functions in vivo: a user's guide to current and next generation mutant mouse models. Eur J Immunol 2022; 52:1712-1749. [PMID: 35099816 DOI: 10.1002/eji.202149513] [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: 11/19/2021] [Accepted: 01/14/2022] [Indexed: 11/11/2022]
Abstract
Dendritic cells (DCs) do not just excel in antigen presentation. They orchestrate information transfer from innate to adaptive immunity, by sensing and integrating a variety of danger signals, and translating them to naïve T cells, to mount specifically tailored immune responses. This is accomplished by distinct DC types specialized in different functions and because each DC is functionally plastic, assuming different activation states depending on the input signals received. Mouse models hold the key to untangle this complexity and determine which DC types and activation states contribute to which functions. Here, we aim to provide comprehensive information for selecting the most appropriate mutant mouse strains to address specific research questions on DCs, considering three in vivo experimental approaches: (i) interrogating the roles of DC types through their depletion; (ii) determining the underlying mechanisms by specific genetic manipulations; (iii) deciphering the spatiotemporal dynamics of DC responses. We summarize the advantages, caveats, suggested use and perspectives for a variety of mutant mouse strains, discussing in more detail the most widely used or accurate models. Finally, we discuss innovative strategies to improve targeting specificity, for the next generation mutant mouse models, and briefly address how humanized mouse models can accelerate translation into the clinic. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Marc Dalod
- CNRS, Inserm, Aix Marseille Univ, Centre d'Immunologie de Marseille-Luminy (CIML), Turing Center for Living Systems, Marseille, France
| | - Stefanie Scheu
- Institute of Medical Microbiology and Hospital Hygiene, University of Düsseldorf, Düsseldorf, Germany
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8
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Liu Z, Li L, Li X, Hua M, Sun H, Zhang S. Prediction and prognostic significance of ALOX12B and PACSIN1 expression in gastric cancer by genome-wide RNA expression and methylation analysis. J Gastrointest Oncol 2021; 12:2082-2092. [PMID: 34790376 DOI: 10.21037/jgo-21-508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/11/2021] [Indexed: 12/24/2022] Open
Abstract
Background Stomach adenocarcinoma (STAD) is one of the common gastrointestinal cancers, characterized by late discovery and metastasis. However, research of gene methylation and expression in gastric cancer (GC) metastasis has been quite limited. This study aimed to investigate the altered gene expression patterns between metastasis and non-metastasis samples using high-throughput RNA and methylation profiles from a large number of patients. Another aim was to identify a specific potential metastasis biomarker, with the ability to predict the metastasis possibility and prognosis of patients with STAD. Methods In this study, we integrated The Cancer Genome Atlas (TCGA) program STAD datasets, analyzed the RNA expression and DNA methylation data between non-metastasis (M0) and distant metastasis (M1) samples, and evaluated the candidate biomarker in survival and prognosis of GC. Results Among all patients enrolled, 329 with M0 and M1 information were positive for RNA analysis, and 353 with M0 and M1 information were positive for methylation analysis. We found 29 upregulated and 200 downregulated genes in RNA level, and 5,046 hypermethylated and 8,563 hypomethylated probes in methylation level. Among these genes, we found high RNA expression level and low DNA methylation level of ALOX12B and PACSIN1 in GC metastasis samples. Patients with high expression of these 2 genes had poor overall survival (OS), progression-free survival (PFS), and post-progression survival (PPS). Conclusions The expression levels of ALOX12B and PACSIN1 were higher in the metastasis than non-metastasis group, and participants with high expression of these 2 genes were found to have poor survival. The genes ALOX12B and PACSIN1 are potential biomarkers of metastasis and poor prognosis, especially in early stage GC, and provide additional information for subsequent comprehensive treatment of GC.
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Affiliation(s)
- Zhiping Liu
- Department of Oncology, Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Lei Li
- Department of Oncology, Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Xindi Li
- Department of Oncology, Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Mingtao Hua
- Department of Oncology, Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Huaqing Sun
- Department of Oncology, Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Shengui Zhang
- Department of Oncology, Shandong Provincial Third Hospital, Shandong University, Jinan, China
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9
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Laustsen A, van der Sluis RM, Gris-Oliver A, Hernández SS, Cemalovic E, Tang HQ, Pedersen LH, Uldbjerg N, Jakobsen MR, Bak RO. Ascorbic acid supports ex vivo generation of plasmacytoid dendritic cells from circulating hematopoietic stem cells. eLife 2021; 10:65528. [PMID: 34473049 PMCID: PMC8445615 DOI: 10.7554/elife.65528] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 09/01/2021] [Indexed: 12/16/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) constitute a rare type of immune cell with multifaceted functions, but their potential use as a cell-based immunotherapy is challenged by the scarce cell numbers that can be extracted from blood. Here, we systematically investigate culture parameters for generating pDCs from hematopoietic stem and progenitor cells (HSPCs). Using optimized conditions combined with implementation of HSPC pre-expansion, we generate an average of 465 million HSPC-derived pDCs (HSPC-pDCs) starting from 100,000 cord blood-derived HSPCs. Furthermore, we demonstrate that such protocol allows HSPC-pDC generation from whole-blood HSPCs, and these cells display a pDC phenotype and function. Using GMP-compliant medium, we observe a remarkable loss of TLR7/9 responses, which is rescued by ascorbic acid supplementation. Ascorbic acid induces transcriptional signatures associated with pDC-specific innate immune pathways, suggesting an undescribed role of ascorbic acid for pDC functionality. This constitutes the first protocol for generating pDCs from whole blood and lays the foundation for investigating HSPC-pDCs for cell-based immunotherapy.
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Affiliation(s)
- Anders Laustsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Renée M van der Sluis
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Institute of Advanced Studies, Aarhus University, Aarhus, Denmark
| | | | | | - Ena Cemalovic
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Clinic of Medicine, St. Olav's University Hospital, Trondheim, Norway
| | - Hai Q Tang
- Department of Obstetrics and Gynaecology, Aarhus University Hospital, Aarhus, Denmark
| | - Lars Henning Pedersen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Obstetrics and Gynaecology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Niels Uldbjerg
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | | | - Rasmus O Bak
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Institute of Advanced Studies, Aarhus University, Aarhus, Denmark
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10
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Zimu Z, Jia Z, Xian F, Rui M, Yuting R, Yuan W, Tianhong W, Mian M, Yinlong L, Enfang S. Decreased Expression of PACSIN1 in Brain Glioma Samples Predicts Poor Prognosis. Front Mol Biosci 2021; 8:696072. [PMID: 34422904 PMCID: PMC8375027 DOI: 10.3389/fmolb.2021.696072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/27/2021] [Indexed: 12/03/2022] Open
Abstract
Gliomas are the most severe brain tumours with a poor prognosis. Although surgery, postoperative radiotherapy and chemotherapy can improve the survival rate of glioma patients, the prognosis of most glioma patients is still poor. In recent years, the influence of gene-targeted therapy on gliomas has been gradually discovered, and intervening the occurrence and development of brain gliomas from the perspective of the gene will significantly improve treatment prognosis. Protein Kinase C and Casein Kinase Substrate in Neurons 1 (PACSIN1) is a member of the conserved peripheral membrane protein family in eukaryotes. Improper expression of PACSIN1 can lead to neurological diseases such as Huntington’s disease and schizophrenia. However, its relationship with tumours or even gliomas has not been explored. The study aims to explore PACSIN1 as a prognostic factor that can predict overall survival (OS) for gliomas. We collected the data from CGGA, TCGA, GEO databases and the pathological glioma tissue specimens from 15 clinical glioma patients surgically resected. The differential expression of PACSIN1 in various clinical indicators, the genes related to PACSIN1 expression, the prognostic value of PACSIN1 and the functional annotations and pathway analysis of differently expressed genes (DEGs) were analysed. The results revealed that PACSIN1 had low expression levels in grade IV, IDH1 wild-type and 1p/19q non-codel group gliomas, and PACSIN1 was considered a mesenchymal molecular subtype marker. PACSIN1 expression is positively correlated with OS in all gliomas and it was found that PACSIN1 influenced the occurrence and development of gliomas through synaptic transmission. The PACSIN1 expression is negatively correlated with the malignant degree of gliomas and positively associated with the OS, indicating that PACSIN1 would play an essential role in the occurrence and development of gliomas and might be a potential new biomarker and targeted therapy site for gliomas.
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Affiliation(s)
- Zhou Zimu
- School of Nursing, Nanjing Medical University, Nanjing, China.,Cancer Nursing Research Branch, Nursing Research Center, Nanjing Medical University, Nanjing, China
| | - Zhang Jia
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Fu Xian
- Department of Neurosurgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Ma Rui
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Ren Yuting
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Wei Yuan
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Wen Tianhong
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Ma Mian
- Department of Neurosurgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Liu Yinlong
- Department of Neurosurgery, The Affiliated Huashan Hospital, Fudan University, Shanghai, China.,Department of Neurosurgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Shan Enfang
- School of Nursing, Nanjing Medical University, Nanjing, China.,Cancer Nursing Research Branch, Nursing Research Center, Nanjing Medical University, Nanjing, China
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11
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Bencze D, Fekete T, Pázmándi K. Type I Interferon Production of Plasmacytoid Dendritic Cells under Control. Int J Mol Sci 2021; 22:ijms22084190. [PMID: 33919546 PMCID: PMC8072550 DOI: 10.3390/ijms22084190] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
Abstract
One of the most powerful and multifaceted cytokines produced by immune cells are type I interferons (IFNs), the basal secretion of which contributes to the maintenance of immune homeostasis, while their activation-induced production is essential to effective immune responses. Although, each cell is capable of producing type I IFNs, plasmacytoid dendritic cells (pDCs) possess a unique ability to rapidly produce large amounts of them. Importantly, type I IFNs have a prominent role in the pathomechanism of various pDC-associated diseases. Deficiency in type I IFN production increases the risk of more severe viral infections and the development of certain allergic reactions, and supports tumor resistance; nevertheless, its overproduction promotes autoimmune reactions. Therefore, the tight regulation of type I IFN responses of pDCs is essential to maintain an adequate level of immune response without causing adverse effects. Here, our goal was to summarize those endogenous factors that can influence the type I IFN responses of pDCs, and thus might serve as possible therapeutic targets in pDC-associated diseases. Furthermore, we briefly discuss the current therapeutic approaches targeting the pDC-type I IFN axis in viral infections, cancer, autoimmunity, and allergy, together with their limitations defined by the Janus-faced nature of pDC-derived type I IFNs.
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Affiliation(s)
- Dóra Bencze
- Department of Immunology, Faculty of Medicine, University of Debrecen, 1 Egyetem Square, H-4032 Debrecen, Hungary; (D.B.); (T.F.)
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, 1 Egyetem Square, H-4032 Debrecen, Hungary
| | - Tünde Fekete
- Department of Immunology, Faculty of Medicine, University of Debrecen, 1 Egyetem Square, H-4032 Debrecen, Hungary; (D.B.); (T.F.)
| | - Kitti Pázmándi
- Department of Immunology, Faculty of Medicine, University of Debrecen, 1 Egyetem Square, H-4032 Debrecen, Hungary; (D.B.); (T.F.)
- Correspondence: ; Tel./Fax: +36-52-417-159
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12
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Wanet A, Bassal MA, Patel SB, Marchi F, Mariani SA, Ahmed N, Zhang H, Borchiellini M, Chen S, Zhang J, Di Ruscio A, Miyake K, Tsai M, Paranjape A, Park SY, Karasuyama H, Schroeder T, Dzierzak E, Galli SJ, Tenen DG, Welner RS. E-cadherin is regulated by GATA-2 and marks the early commitment of mouse hematopoietic progenitors to the basophil and mast cell fates. Sci Immunol 2021; 6:6/56/eaba0178. [PMID: 33547048 DOI: 10.1126/sciimmunol.aba0178] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 09/09/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022]
Abstract
E-cadherin is a calcium-dependent cell-cell adhesion molecule extensively studied for its involvement in tissue formation, epithelial cell behavior, and suppression of cancer. However, E-cadherin expression in the hematopoietic system has not been fully elucidated. Combining single-cell RNA-sequencing analyses and immunophenotyping, we revealed that progenitors expressing high levels of E-cadherin and contained within the granulocyte-monocyte progenitors (GMPs) fraction have an enriched capacity to differentiate into basophils and mast cells. We detected E-cadherin expression on committed progenitors before the expression of other reported markers of these lineages. We named such progenitors pro-BMPs (pro-basophil and mast cell progenitors). Using RNA sequencing, we observed transcriptional priming of pro-BMPs to the basophil and mast cell lineages. We also showed that GATA-2 directly regulates E-cadherin expression in the basophil and mast cell lineages, thus providing a mechanistic connection between the expression of this cell surface marker and the basophil and mast cell fate specification.
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Affiliation(s)
- Anaïs Wanet
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Mahmoud A Bassal
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Sweta B Patel
- Division of Hematology/Oncology, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | | | - Samanta A Mariani
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Nouraiz Ahmed
- Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland
| | - Haoran Zhang
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Marta Borchiellini
- Department of Health Sciences, University of Eastern Piedmont, Novara 28100, Italy.,Department of Translational Medicine, University of Eastern Piedmont, Novara 28100, Italy
| | - Sisi Chen
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Junyan Zhang
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Annalisa Di Ruscio
- Department of Translational Medicine, University of Eastern Piedmont, Novara 28100, Italy.,Harvard Medical School Initiative for RNA Medicine, Boston, MA 02115, USA.,Cancer Research Institute, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Kensuke Miyake
- Inflammation, Infection, Immunity Laboratory, Advanced Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Mindy Tsai
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Anuya Paranjape
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Shin-Young Park
- Transfusion Medicine, Boston Children's Hospital and Harvard Medical School, Harvard Medical School, Boston, MA 02115, USA
| | - Hajime Karasuyama
- Inflammation, Infection, Immunity Laboratory, Advanced Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland
| | - Elaine Dzierzak
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Stephen J Galli
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Department of Microbiology and Immunology and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Daniel G Tenen
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA. .,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Robert S Welner
- Division of Hematology/Oncology, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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13
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Abstract
The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is responsible for the current COVID-19 pandemic. An unbalanced immune response, characterized by a weak production of type I interferons (IFN-Is) and an exacerbated release of proinflammatory cytokines, contributes to the severe forms of the disease. SARS-CoV-2 is genetically related to SARS-CoV and Middle East respiratory syndrome-related coronavirus (MERS-CoV), which caused outbreaks in 2003 and 2013, respectively. Although IFN treatment gave some encouraging results against SARS-CoV and MERS-CoV in animal models, its potential as a therapeutic against COVID-19 awaits validation. Here, we describe our current knowledge of the complex interplay between SARS-CoV-2 infection and the IFN system, highlighting some of the gaps that need to be filled for a better understanding of the underlying molecular mechanisms. In addition to the conserved IFN evasion strategies that are likely shared with SARS-CoV and MERS-CoV, novel counteraction mechanisms are being discovered in SARS-CoV-2-infected cells. Since the last coronavirus epidemic, we have made considerable progress in understanding the IFN-I response, including its spatiotemporal regulation and the prominent role of plasmacytoid dendritic cells (pDCs), which are the main IFN-I-producing cells. While awaiting the results of the many clinical trials that are evaluating the efficacy of IFN-I alone or in combination with antiviral molecules, we discuss the potential benefits of a well-timed IFN-I treatment and propose strategies to boost pDC-mediated IFN responses during the early stages of viral infection.
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Affiliation(s)
- Margarida Sa Ribero
- CIRI, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France
| | | | - Marlène Dreux
- CIRI, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France
| | - Sébastien Nisole
- IRIM, CNRS UMR9004, Université de Montpellier, Montpellier, France
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14
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Ye Y, Gaugler B, Mohty M, Malard F. Plasmacytoid dendritic cell biology and its role in immune-mediated diseases. Clin Transl Immunology 2020; 9:e1139. [PMID: 32489664 PMCID: PMC7248678 DOI: 10.1002/cti2.1139] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 12/26/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are a unique subset of dendritic cells specialised in secreting high levels of type I interferons. pDCs play a crucial role in antiviral immunity and have been implicated in the initiation and development of many autoimmune and inflammatory diseases. This review summarises the latest advances in recent years in several aspects of pDC biology, with special focus on pDC heterogeneity, pDC development via the lymphoid pathway, and newly identified proteins/pathways involved in pDC trafficking, nucleic acid sensing and interferon production. Finally, we also highlight the current understanding of pDC involvement in autoimmunity and alloreactivity, and opportunities for pDC‐targeting therapies in these diseases. These new insights have contributed to answers to several fundamental questions remaining in pDC biology and may pave the way to successful pDC‐targeting therapy in the future.
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Affiliation(s)
- Yishan Ye
- INSERM, Centre de Recherche Saint-Antoine (CRSA) Sorbonne Université Paris France.,Bone Marrow Transplantation Center The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou China
| | - Béatrice Gaugler
- INSERM, Centre de Recherche Saint-Antoine (CRSA) Sorbonne Université Paris France
| | - Mohamad Mohty
- INSERM, Centre de Recherche Saint-Antoine (CRSA) Sorbonne Université Paris France.,Service d'Hématologie Clinique et Thérapie Cellulaire AP-HP, Hôpital Saint-Antoine Sorbonne Université Paris France
| | - Florent Malard
- INSERM, Centre de Recherche Saint-Antoine (CRSA) Sorbonne Université Paris France.,Service d'Hématologie Clinique et Thérapie Cellulaire AP-HP, Hôpital Saint-Antoine Sorbonne Université Paris France
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15
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Netravali IA, Cariappa A, Yates K, Haining WN, Bertocchi A, Allard-Chamard H, Rosenberg I, Pillai S. 9-O-acetyl sialic acid levels identify committed progenitors of plasmacytoid dendritic cells. Glycobiology 2019; 29:861-875. [PMID: 31411667 DOI: 10.1093/glycob/cwz062] [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: 03/22/2019] [Revised: 07/24/2019] [Accepted: 08/01/2019] [Indexed: 11/12/2022] Open
Abstract
The origins of plasmacytoid dendritic cells (pDCs) have long been controversial and progenitors exclusively committed to this lineage have not been described. We show here that the fate of hematopoietic progenitors is determined in part by their surface levels of 9-O-acetyl sialic acid. Pro-pDCs were identified as lineage negative 9-O-acetyl sialic acid low progenitors that lack myeloid and lymphoid potential but differentiate into pre-pDCs. The latter cells are also lineage negative, 9-O-acetyl sialic acid low cells but are exclusively committed to the pDC lineage. Levels of 9-O-acetyl sialic acid provide a distinct way to define progenitors and thus facilitate the study of hematopoietic differentiation.
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Affiliation(s)
- Ilka A Netravali
- Ragon Institute of MGH, MIT and Harvard, Cambridge MA 02139 and The MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Annaiah Cariappa
- Ragon Institute of MGH, MIT and Harvard, Cambridge MA 02139 and The MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Kathleen Yates
- Dana-Farber Cancer Institute, Pediatric Oncology, Harvard Medical School, Boston, MA 02115, USA
| | - W Nicholas Haining
- Dana-Farber Cancer Institute, Pediatric Oncology, Harvard Medical School, Boston, MA 02115, USA
| | - Alice Bertocchi
- Ragon Institute of MGH, MIT and Harvard, Cambridge MA 02139 and The MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Hugues Allard-Chamard
- Ragon Institute of MGH, MIT and Harvard, Cambridge MA 02139 and The MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.,Division of Rheumatology, Faculté de Médecine et des Sciences de la Santé de l', Université de Sherbrooke et Centre de Recherche Clinique Étienne-Le Bel, Sherbrooke, Québec, Canada, J1K 2R1
| | - Ian Rosenberg
- Ragon Institute of MGH, MIT and Harvard, Cambridge MA 02139 and The MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Shiv Pillai
- Ragon Institute of MGH, MIT and Harvard, Cambridge MA 02139 and The MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
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16
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Reizis B. Plasmacytoid Dendritic Cells: Development, Regulation, and Function. Immunity 2019; 50:37-50. [PMID: 30650380 PMCID: PMC6342491 DOI: 10.1016/j.immuni.2018.12.027] [Citation(s) in RCA: 348] [Impact Index Per Article: 69.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/17/2018] [Accepted: 12/20/2018] [Indexed: 12/14/2022]
Abstract
Plasmacytoid dendritic cells (pDCs) are a unique sentinel cell type that can detect pathogen-derived nucleic acids and respond with rapid and massive production of type I interferon. This review summarizes our current understanding of pDC biology, including transcriptional regulation, heterogeneity, role in antiviral immune responses, and involvement in immune pathology, particularly in autoimmune diseases, immunodeficiency, and cancer. We also highlight the remaining gaps in our knowledge and important questions for the field, such as the molecular basis of unique interferon-producing capacity of pDCs. A better understanding of cell type-specific positive and negative control of pDC function should pave the way for translational applications focused on this immune cell type.
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Affiliation(s)
- Boris Reizis
- Department of Pathology and Department of Medicine, New York University School of Medicine, New York, NY 10016, USA.
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17
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Gao Y, Jiang J, Yang S, Cao J, Han B, Wang Y, Zhang Y, Yu Y, Zhang S, Zhang Q, Fang L, Cantrell B, Sun D. Genome-wide association study of Mycobacterium avium subspecies Paratuberculosis infection in Chinese Holstein. BMC Genomics 2018; 19:972. [PMID: 30591025 PMCID: PMC6307165 DOI: 10.1186/s12864-018-5385-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 12/18/2018] [Indexed: 02/06/2023] Open
Abstract
Background Paratuberculosis is a contagious, chronic and enteric disease in ruminants, which is caused by Mycobacterium avium subspecies paratuberculosis (MAP) infection, resulting in enormous economic losses worldwide. There is currently no effective cure for MAP infection or a vaccine, it is thus important to explore the genetic variants that contribute to host susceptibility to infection by MAP, which may provide a better understanding of the mechanisms of paratuberculosis and benefit animal genetic improvement. Herein we performed a genome-wide association study (GWAS) to identify genomic regions and candidate genes associated with susceptibility to MAP infection in dairy cattle. Results Using Illumina Bovine 50 K (54,609 SNPs) and GeneSeek HD (138,893 SNPs) chips, two analytical approaches were performed, GRAMMAR-GC and ROADTRIPS in 937 Chinese Holstein cows, among which individuals genotyped by the 50 K chip were imputed to HD SNPs with Beagle software. Consequently, 15 and 11 significant SNPs (P < 5 × 10− 5) were identified with GRAMMAR-GC and ROADTDRIPS, respectively. A total of 10 functional genes were in proximity to (i.e., within 1 Mb) these SNPs, including IL4, IL5, IL13, IRF1, MyD88, PACSIN1, DEF6, TDP2, ZAP70 and CSF2. Functional enrichment analysis showed that these genes were involved in immune related pathways, such as interleukin, T cell receptor signaling pathways and inflammatory bowel disease (IBD), implying their potential associations with susceptibility to MAP infection. In addition, by examining the publicly available cattle QTLdb, a previous QTL for MAP was found to be overlapped with one of regions detected currently at 32.5 Mb on BTA23, where the TDP2 gene was anchored. Conclusions In conclusion, we identified 26 SNPs located on 15 chromosomes in the Chinese Holstein population using two GWAS strategies with high density SNPs. Integrated analysis of GWAS, biological functions and the reported QTL information helps to detect positional candidate genes and the identification of regions associated with susceptibility to MAP traits in dairy cattle. Electronic supplementary material The online version of this article (10.1186/s12864-018-5385-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yahui Gao
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jianping Jiang
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shaohua Yang
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jie Cao
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Bo Han
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yachun Wang
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yi Zhang
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Ying Yu
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shengli Zhang
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Qin Zhang
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Lingzhao Fang
- Department of Animal and Avian Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Bonnie Cantrell
- Department of Animal and Veterinary Sciences, University of Vermont, Burlington, VT, 05405, USA
| | - Dongxiao Sun
- Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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18
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Feng W, Zhou L, Wang H, Hu Z, Wang X, Fu J, Wang A, Liu JF. Functional analysis of DNA methylation of the PACSIN1 promoter in pig peripheral blood mononuclear cells. J Cell Biochem 2018; 120:10118-10127. [PMID: 30537176 DOI: 10.1002/jcb.28295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 10/22/2018] [Indexed: 12/19/2022]
Abstract
DNA methylation plays essential roles in regulating the activity of genes and may contribute to understanding the potential epigenetic biomarkers response to viruses. To explore the function of DNA methylation of protein kinase C and casein kinase substrate in neurons 1 (PACSNI1) promoter, herein we performed the bisulfite sequencing polymerase chain reaction and Western blot analysis to verify hypermethylation and downregulation of PACSIN1 expression in peripheral blood mononuclear cells of pig as the vitro model. Promoter methylation could reduce the transcriptional activity of the PACSIN1 gene potentially by affecting the binding of transcription factor Sp1. In addition, downregulation of the PACSIN1 gene expression could facilitate the production of interleukin-6 (IL-6), IL-8, tumor necrosis factor α, and NECAP2. The comprehensive analysis of PACSIN1 methylation and its function will help us to understand the gene to be served as an important candidate gene in pig for disease resistance breeding and aid in the identification of potential epigenetic biomarkers associated with responsiveness to viruses.
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Affiliation(s)
- Wen Feng
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lei Zhou
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Haifei Wang
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China.,Department of Animal Genetics, Breeding and Reproduction and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Zhengzheng Hu
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiaomei Wang
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jianlian Fu
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Aiguo Wang
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jian-Feng Liu
- National Engineering Laboratory for Animal Breeding; Department of Animal genetics, Breeding and Reproduction; College of Animal Science and Technology, China Agricultural University, Beijing, China
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19
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Proteomics of Human Dendritic Cell Subsets Reveals Subset-Specific Surface Markers and Differential Inflammasome Function. Cell Rep 2017; 16:2953-2966. [PMID: 27626665 PMCID: PMC5039226 DOI: 10.1016/j.celrep.2016.08.023] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 06/25/2016] [Accepted: 08/05/2016] [Indexed: 01/01/2023] Open
Abstract
Dendritic cells (DCs) play a key role in orchestrating adaptive immune responses. In human blood, three distinct subsets exist: plasmacytoid DCs (pDCs) and BDCA3+ and CD1c+ myeloid DCs. In addition, a DC-like CD16+ monocyte has been reported. Although RNA-expression profiles have been previously compared, protein expression data may provide a different picture. Here, we exploited label-free quantitative mass spectrometry to compare and identify differences in primary human DC subset proteins. Moreover, we integrated these proteomic data with existing mRNA data to derive robust cell-specific expression signatures with more than 400 differentially expressed proteins between subsets, forming a solid basis for investigation of subset-specific functions. We illustrated this by extracting subset identification markers and by demonstrating that pDCs lack caspase-1 and only express low levels of other inflammasome-related proteins. In accordance, pDCs were incapable of interleukin (IL)-1β secretion in response to ATP. We present a comprehensive quantitative proteome comparison of primary human DC subsets Proteome comparison reveals many expression differences between DC subsets We provide a resource to derive markers and examine subset functional specialization pDCs lack caspase-1 and have a decreased inflammasome response
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20
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Bao M, Wang Y, Liu Y, Shi P, Lu H, Sha W, Weng L, Hanabuchi S, Qin J, Plumas J, Chaperot L, Zhang Z, Liu YJ. NFATC3 promotes IRF7 transcriptional activity in plasmacy--toid dendritic cells. J Exp Med 2016; 213:2383-2398. [PMID: 27697837 PMCID: PMC5068237 DOI: 10.1084/jem.20160438] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 09/08/2016] [Indexed: 01/31/2023] Open
Abstract
The transcription factor NFATC3 binds to IRF7 and to type 1 IFN promoters, regulating IRF7-mediated IFN expression in pDCs. Plasmacytoid dendritic cells (pDCs) rapidly produce large amounts of type 1 interferon (IFN) after Toll-like receptor 7 and 9 engagements. This specialized function of type 1 IFN production is directly linked to the constitutive expression of IRF7, the master transcription factor for type 1 IFN production. However, the IRF7 regulatory network in pDCs remains largely unknown. In this study, we identify that the transcription factor NFATC3 specifically binds to IRF7 and enhances IRF7-mediated IFN production. Furthermore, knockout of NFATC3 greatly reduced the CpG DNA–induced nuclear translocation of IRF7, which resulted in impaired type 1 IFN production in vitro and in vivo. In addition, we found that NFATC3 and IRF7 both bound to type 1 IFN promoters and that the NFAT binding site in IFN promoters was required for IRF7-mediated IFN expression. Collectively, our study shows that the transcription factor NFATC3 binds to IRF7 and functions synergistically to enhance IRF7-mediated IFN expression in pDCs.
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Affiliation(s)
- Musheng Bao
- Baylor Institute for Immunology Research, Dallas, TX 75204.,MedImmune, LLC, Gaithersburg, MD 20878
| | - York Wang
- Baylor Institute for Immunology Research, Dallas, TX 75204.,MedImmune, LLC, Gaithersburg, MD 20878
| | - Ying Liu
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | - Peiqing Shi
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | - Hongbo Lu
- Baylor Institute for Immunology Research, Dallas, TX 75204.,MedImmune, LLC, Gaithersburg, MD 20878
| | - Wenwen Sha
- Baylor Institute for Immunology Research, Dallas, TX 75204.,MedImmune, LLC, Gaithersburg, MD 20878
| | - Leiyun Weng
- Baylor Institute for Immunology Research, Dallas, TX 75204.,MedImmune, LLC, Gaithersburg, MD 20878
| | - Shino Hanabuchi
- Baylor Institute for Immunology Research, Dallas, TX 75204.,MedImmune, LLC, Gaithersburg, MD 20878
| | - Jun Qin
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Joel Plumas
- Etablissement Français du Sang Rhone-Alpes, 38701 La Tronche, France
| | - Laurence Chaperot
- Etablissement Français du Sang Rhone-Alpes, 38701 La Tronche, France
| | - Zhiqiang Zhang
- Immunobiology and Transplant Research, Houston Methodist Research Institute, Houston, TX 77030
| | - Yong-Jun Liu
- Baylor Institute for Immunology Research, Dallas, TX 75204 .,MedImmune, LLC, Gaithersburg, MD 20878
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21
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Dahlgren S, Ziener ML, Lingaas F. A genome-wide association study identifies a region strongly associated with symmetrical onychomadesis on chromosome 12 in dogs. Anim Genet 2016; 47:708-716. [PMID: 27629549 DOI: 10.1111/age.12469] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2016] [Indexed: 12/26/2022]
Abstract
Symmetrical onychomadesis causes periodic loss of claws in otherwise healthy dogs. Genome-wide association analysis in 225 Gordon Setters identified a single region associated with symmetrical onychomadesis on chromosome 12 (spanning about 3.3 mb). A meta-analysis including also English Setters indicated that this genomic region predisposes for symmetrical onychomadesis in English Setters as well. The associated region spans most of the major histocompatibility complex and nearly 1 Mb downstream. Like many other autoimmune diseases, associations of symmetrical onychomadesis with DLA class II alleles have been reported. In this study, no associated markers were revealed within any of the DLA-DRB1, -DQA1 or -DQB1 genes, and the odds for symmetrical onychomadesis in the Gordon Setters were much higher, carrying significant single nucleotide polymorphisms compared to the odds of any of the recorded DLA-DRB1/DQA1/DQB1 haplotypes. We noticed that some of the associated DLA haplotypes were different between the English Setters and the Gordon Setters. Interestingly, associated SNP chip markers showed a more consistent pattern of allelic variants related to cases or controls regardless of breed. In conclusion, the associated genetic markers identified in this study hold the potential to aid in selection of breeding animals to reduce the frequency of symmetrical onychomadesis in the dog.
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Affiliation(s)
- S Dahlgren
- Department of Basic Sciences and Aquatic Medicine, Norwegian University of Life Sciences, Oslo, Norway.
| | - M Lund Ziener
- Department of Basic Sciences and Aquatic Medicine, Norwegian University of Life Sciences, Oslo, Norway.,Fredrikstad Animal Hospital, Fredrikstad, Norway
| | - F Lingaas
- Department of Basic Sciences and Aquatic Medicine, Norwegian University of Life Sciences, Oslo, Norway
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22
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Bunin A, Sisirak V, Ghosh HS, Grajkowska LT, Hou ZE, Miron M, Yang C, Ceribelli M, Uetani N, Chaperot L, Plumas J, Hendriks W, Tremblay ML, Häcker H, Staudt LM, Green PH, Bhagat G, Reizis B. Protein Tyrosine Phosphatase PTPRS Is an Inhibitory Receptor on Human and Murine Plasmacytoid Dendritic Cells. Immunity 2015; 43:277-88. [PMID: 26231120 PMCID: PMC4547994 DOI: 10.1016/j.immuni.2015.07.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 05/01/2015] [Accepted: 05/29/2015] [Indexed: 12/15/2022]
Abstract
Plasmacytoid dendritic cells (pDCs) are primary producers of type I interferon (IFN) in response to viruses. The IFN-producing capacity of pDCs is regulated by specific inhibitory receptors, yet none of the known receptors are conserved in evolution. We report that within the human immune system, receptor protein tyrosine phosphatase sigma (PTPRS) is expressed specifically on pDCs. Surface PTPRS was rapidly downregulated after pDC activation, and only PTPRS(-) pDCs produced IFN-α. Antibody-mediated PTPRS crosslinking inhibited pDC activation, whereas PTPRS knockdown enhanced IFN response in a pDC cell line. Similarly, murine Ptprs and the homologous receptor phosphatase Ptprf were specifically co-expressed in murine pDCs. Haplodeficiency or DC-specific deletion of Ptprs on Ptprf-deficient background were associated with enhanced IFN response of pDCs, leukocyte infiltration in the intestine and mild colitis. Thus, PTPRS represents an evolutionarily conserved pDC-specific inhibitory receptor, and is required to prevent spontaneous IFN production and immune-mediated intestinal inflammation.
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Affiliation(s)
- Anna Bunin
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA; Celiac Disease Center, Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA
| | - Vanja Sisirak
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA; Department of Pathology and Department of Medicine, New York University Langone Medical Center, New York, NY 10016, USA
| | - Hiyaa S Ghosh
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA
| | - Lucja T Grajkowska
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA; Department of Pathology and Department of Medicine, New York University Langone Medical Center, New York, NY 10016, USA
| | - Z Esther Hou
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA
| | - Michelle Miron
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA
| | - Cliff Yang
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA
| | - Michele Ceribelli
- Lymphoid Malignancy Branch, Center for Cancer Research, National Cancer Institute, Rockville, MD 20852, USA
| | - Noriko Uetani
- Goodman Cancer Centre, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Laurence Chaperot
- R&D Laboratory, EFS Rhone-Alpes Grenoble, La Tronche F-38701, France
| | - Joel Plumas
- R&D Laboratory, EFS Rhone-Alpes Grenoble, La Tronche F-38701, France
| | - Wiljan Hendriks
- Department of Cell Biology, Radboud University, 6525 GA Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Michel L Tremblay
- Goodman Cancer Centre, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Hans Häcker
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Louis M Staudt
- Lymphoid Malignancy Branch, Center for Cancer Research, National Cancer Institute, Rockville, MD 20852, USA
| | - Peter H Green
- Celiac Disease Center, Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA
| | - Govind Bhagat
- Celiac Disease Center, Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA; Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032, USA
| | - Boris Reizis
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA; Department of Pathology and Department of Medicine, New York University Langone Medical Center, New York, NY 10016, USA.
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23
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Abstract
Plasmacytoid dendritic cells (pDCs) are a unique DC subset that specializes in the production of type I interferons (IFNs). pDCs promote antiviral immune responses and have been implicated in the pathogenesis of autoimmune diseases that are characterized by a type I IFN signature. However, pDCs can also induce tolerogenic immune responses. In this Review, we summarize recent progress in the field of pDC biology, focusing on the molecular mechanisms that regulate the development and functions of pDCs, the pathways involved in their sensing of pathogens and endogenous nucleic acids, their functions at mucosal sites, and their roles in infection, autoimmunity and cancer.
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24
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Vu Manh TP, Bertho N, Hosmalin A, Schwartz-Cornil I, Dalod M. Investigating Evolutionary Conservation of Dendritic Cell Subset Identity and Functions. Front Immunol 2015; 6:260. [PMID: 26082777 PMCID: PMC4451681 DOI: 10.3389/fimmu.2015.00260] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 05/11/2015] [Indexed: 12/14/2022] Open
Abstract
Dendritic cells (DCs) were initially defined as mononuclear phagocytes with a dendritic morphology and an exquisite efficiency for naïve T-cell activation. DC encompass several subsets initially identified by their expression of specific cell surface molecules and later shown to excel in distinct functions and to develop under the instruction of different transcription factors or cytokines. Very few cell surface molecules are expressed in a specific manner on any immune cell type. Hence, to identify cell types, the sole use of a small number of cell surface markers in classical flow cytometry can be deceiving. Moreover, the markers currently used to define mononuclear phagocyte subsets vary depending on the tissue and animal species studied and even between laboratories. This has led to confusion in the definition of DC subset identity and in their attribution of specific functions. There is a strong need to identify a rigorous and consensus way to define mononuclear phagocyte subsets, with precise guidelines potentially applicable throughout tissues and species. We will discuss the advantages, drawbacks, and complementarities of different methodologies: cell surface phenotyping, ontogeny, functional characterization, and molecular profiling. We will advocate that gene expression profiling is a very rigorous, largely unbiased and accessible method to define the identity of mononuclear phagocyte subsets, which strengthens and refines surface phenotyping. It is uniquely powerful to yield new, experimentally testable, hypotheses on the ontogeny or functions of mononuclear phagocyte subsets, their molecular regulation, and their evolutionary conservation. We propose defining cell populations based on a combination of cell surface phenotyping, expression analysis of hallmark genes, and robust functional assays, in order to reach a consensus and integrate faster the huge but scattered knowledge accumulated by different laboratories on different cell types, organs, and species.
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Affiliation(s)
- Thien-Phong Vu Manh
- UM2, Centre d'Immunologie de Marseille-Luminy (CIML), Aix-Marseille University , Marseille , France ; U1104, Institut National de la Santé et de la Recherche Médicale (INSERM) , Marseille , France ; UMR7280, Centre National de la Recherche Scientifique (CNRS) , Marseille , France
| | - Nicolas Bertho
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique , Jouy-en-Josas , France
| | - Anne Hosmalin
- INSERM U1016, Institut Cochin , Paris , France ; CNRS UMR8104 , Paris , France ; Université Paris Descartes , Paris , France ; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin , Paris , France
| | - Isabelle Schwartz-Cornil
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique , Jouy-en-Josas , France
| | - Marc Dalod
- UM2, Centre d'Immunologie de Marseille-Luminy (CIML), Aix-Marseille University , Marseille , France ; U1104, Institut National de la Santé et de la Recherche Médicale (INSERM) , Marseille , France ; UMR7280, Centre National de la Recherche Scientifique (CNRS) , Marseille , France
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25
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Yu H, Zhang P, Yin X, Yin Z, Shi Q, Cui Y, Liu G, Wang S, Piccaluga PP, Jiang T, Zhang L. Human BDCA2+CD123+CD56+ dendritic cells (DCs) related to blastic plasmacytoid dendritic cell neoplasm represent a unique myeloid DC subset. Protein Cell 2015; 6:297-306. [PMID: 25779340 PMCID: PMC4383756 DOI: 10.1007/s13238-015-0140-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 12/25/2014] [Indexed: 11/13/2022] Open
Abstract
Dendritic cells (DCs) comprise two functionally distinct subsets: plasmacytoid DCs (pDCs) and myeloid DCs (mDCs). pDCs are specialized in rapid and massive secretion of type I interferon (IFN-I) in response to nucleic acids through Toll like receptor (TLR)-7 or TLR-9. In this report, we characterized a CD56+ DC population that express typical pDC markers including CD123 and BDCA2 but produce much less IFN-I comparing with pDCs. In addition, CD56+ DCs cluster together with mDCs but not pDCs by genome-wide transcriptional profiling. Accordingly, CD56+ DCs functionally resemble mDCs by producing IL-12 upon TLR4 stimulation and priming naïve T cells without prior activation. These data suggest that the CD56+ DCs represent a novel mDC subset mixed with some pDC features. A CD4+CD56+ hematological malignancy was classified as blastic plasmacytoid dendritic cell neoplasm (BPDCN) due to its expression of characteristic molecules of pDCs. However, we demonstrated that BPDCN is closer to CD56+ DCs than pDCs by global gene-expression profiling. Thus, we propose that the CD4+CD56+ neoplasm may be a tumor counterpart of CD56+ mDCs but not pDCs.
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Affiliation(s)
- Haisheng Yu
- Key Laboratory of Immunity and Infection, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China.,Graduate School of the Chinese Academy of Sciences, Beijing, 100080 China
| | - Peng Zhang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China.,Graduate School of the Chinese Academy of Sciences, Beijing, 100080 China
| | - Xiangyun Yin
- Key Laboratory of Immunity and Infection, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China.,Graduate School of the Chinese Academy of Sciences, Beijing, 100080 China
| | - Zhao Yin
- Department of Cardiology, 306th Hospital of PLA, Beijing, 100101 China
| | - Quanxing Shi
- Department of Cardiology, 306th Hospital of PLA, Beijing, 100101 China
| | - Ya Cui
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
| | - Guanyuan Liu
- Department of Gynecology and Obstetrics, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020 China
| | - Shouli Wang
- Department of Cardiology, 306th Hospital of PLA, Beijing, 100101 China
| | - Pier Paolo Piccaluga
- Department of Experimental, Diagnostic, and Specialty Medicine, Hematopathology & Hematology Sections, Molecular Pathology Laboratory, S. Orsola-Malpighi Hospital, Bologna University, Bologna, 40126 Italy
| | - Taijiao Jiang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
| | - Liguo Zhang
- Key Laboratory of Immunity and Infection, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
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26
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Separation of plasmacytoid dendritic cells from B-cell-biased lymphoid progenitor (BLP) and Pre-pro B cells using PDCA-1. PLoS One 2013; 8:e78408. [PMID: 24205225 PMCID: PMC3813560 DOI: 10.1371/journal.pone.0078408] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 09/10/2013] [Indexed: 11/22/2022] Open
Abstract
B-cell-biased lymphoid progenitors (BLPs) and Pre-pro B cells lie at a critical juncture between B cell specification and commitment. However, both of these populations are heterogenous, which hampers investigation into the molecular changes that occur as lymphoid progenitors commit to the B cell lineage. Here, we demonstrate that there are PDCA-1+Siglec H+ plasmacytoid dendritic cells (pDCs) that co-purify with BLPs and Pre-pro B cells, which express little or no CD11c or Ly6C. Removal of PDCA-1+ pDCs separates B cell progenitors that express high levels of a Rag1-GFP reporter from Rag1-GFPlow/neg pDCs within the BLP and Pre-pro B populations. Analysis of Flt3-ligand knockout and IL-7Rα knockout mice revealed that there is a block in B cell development at the all-lymphoid progenitor (ALP) stage, as the majority of cells within the BLP or Pre-pro B gates were PDCA-1+ pDCs. Thus, removal of PDCA-1+ pDCs is critical for analysis of BLP and Pre-pro B cell populations. Analysis of B cell potential within the B220+CD19− fraction demonstrated that AA4.1+Ly6D+PDCA-1− Pre-pro B cells gave rise to CD19+ B cells at high frequency, while PDCA-1+ pDCs in this fraction did not. Interestingly, the presence of PDCA-1+ pDCs within CLPs may help to explain the conflicting results regarding the origin of these cells.
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27
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Friedenson B. Mutations in components of antiviral or microbial defense as a basis for breast cancer. Funct Integr Genomics 2013; 13:411-24. [PMID: 24057274 DOI: 10.1007/s10142-013-0336-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 09/04/2013] [Accepted: 09/10/2013] [Indexed: 12/19/2022]
Abstract
In-depth functional analyses of thousands of breast cancer gene mutations reveals vastly different sets of mutated genes in each of 21 different breast cancer genomes. Despite differences in which genes are mutated, innate immunity pathways and metabolic reactions supporting them are always damaged. These functions depend on many different genes. Mutations may be rare individually but each set of mutations affects some aspect of pathogen recognition and defense, especially those involving viruses. Some mutations cause a dysregulated immune response, which can also increase cancer risks. The frequency of an individual mutation may be less important than its effect on function. This work demonstrates that acquired immune deficiencies and immune dysregulation in cancer can occur because of mutations. Abnormal immune responses represent a hidden variable in breast cancer-viral association studies. Compensating for these abnormalities may open many new opportunities for cancer prevention and therapy.
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Affiliation(s)
- Bernard Friedenson
- Department of Biochemistry and Molecular Genetics, College of Medicine, University of Illinois Chicago, Chicago, USA,
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28
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Quan A, Robinson PJ. Syndapin--a membrane remodelling and endocytic F-BAR protein. FEBS J 2013; 280:5198-212. [PMID: 23668323 DOI: 10.1111/febs.12343] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 05/07/2013] [Accepted: 05/08/2013] [Indexed: 12/17/2022]
Abstract
Syndapin [also called PACSIN (protein kinase C and casein kinase II interacting protein)] is an Fes-CIP4 homology Bin-amphiphysin-Rvs161/167 (F-BAR) and Src-homology 3 domain-containing protein. Three genes give rise to three main isoforms in mammalian cells. They each function in different endocytic and vesicle trafficking pathways and provide critical links between the cytoskeletal network in different cellular processes, such as neuronal morphogenesis and cell migration. The membrane remodelling activity of syndapin via its F-BAR domain and its interaction partners, such as dynamin and neural Wiskott-Aldrich syndrome protein binding to its Src-homology 3 domain, are important with respect to its function. Its various partner proteins provide insights into its mechanism of action, as well as its differential roles in these cellular processes. Signalling pathways leading to the regulation of syndapin function by phosphorylation are now contributing to our understanding of the broader functions of this family of proteins.
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Affiliation(s)
- Annie Quan
- Cell Signalling Unit, Children's Medical Research Institute, The University of Sydney, New South Wales, Australia
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29
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He X, Jia H, Jing Z, Liu D. Recognition of pathogen-associated nucleic acids by endosomal nucleic acid-sensing toll-like receptors. Acta Biochim Biophys Sin (Shanghai) 2013; 45:241-58. [PMID: 23369718 PMCID: PMC7109797 DOI: 10.1093/abbs/gms122] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Foreign nucleic acids, the essential signature molecules of invading pathogens that act as danger signals for host cells, are detected by endosomal nucleic acid-sensing toll-like receptors (TLRs) 3, 7, 8, 9, and 13. These TLRs have evolved to recognize ‘non-self’ nucleic acids within endosomal compartments and rapidly initiate innate immune responses to ensure host protection through induction of type I interferons, inflammatory cytokines, chemokines, and co-stimulatory molecules and maturation of immune cells. In this review, we highlight our understanding of the recognition of pathogen-associated nucleic acids and activation of corresponding signaling pathways through endosomal nucleic acid-sensing TLRs 3, 7, 8, 9, and 13 for an enormous diversity of pathogens, with particular emphasis on their compartmentalization, intracellular trafficking, proteolytic cleavage, autophagy, and regulatory programs.
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Affiliation(s)
- Xiaobing He
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Public Health of Ministry of Agriculture, Lanzhou Veterinary Research Institute, CAAS, Lanzhou 730046, China
| | - Huaijie Jia
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Public Health of Ministry of Agriculture, Lanzhou Veterinary Research Institute, CAAS, Lanzhou 730046, China
| | - Zhizhong Jing
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Public Health of Ministry of Agriculture, Lanzhou Veterinary Research Institute, CAAS, Lanzhou 730046, China
- Correspondence address. Tel: +86-931-8341979; Fax: +86-931-8340977; E-mail: (Z.J.)/ (D.L.)
| | - Dingxiang Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Public Health of Ministry of Agriculture, Lanzhou Veterinary Research Institute, CAAS, Lanzhou 730046, China
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
- Correspondence address. Tel: +86-931-8341979; Fax: +86-931-8340977; E-mail: (Z.J.)/ (D.L.)
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30
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Bao M, Liu YJ. Regulation of TLR7/9 signaling in plasmacytoid dendritic cells. Protein Cell 2012; 4:40-52. [PMID: 23132256 DOI: 10.1007/s13238-012-2104-8] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 10/11/2012] [Indexed: 12/30/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs), also known as type I interferon (IFN)-producing cells, are specialized immune cells characterized by their extraordinary capabilities of mounting rapid and massive type I IFN response to nucleic acids derived from virus, bacteria or dead cells. PDCs selectively express endosomal Toll-like receptor (TLR) 7 and TLR9, which sense viral RNA and DNA respectively. Following type I IFN and cytokine responses, pDCs differentiate into antigen presenting cells and acquire the ability to regulate T cell-mediated adaptive immunity. The functions of pDCs have been implicated not only in antiviral innate immunity but also in immune tolerance, inflammation and tumor microenvironments. In this review, we will focus on TLR7/9 signaling and their regulation by pDC-specific receptors.
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Affiliation(s)
- Musheng Bao
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA.
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31
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KITAGISHI YASUKO, KOBAYASHI MAYUMI, YAMASHINA YURIE, MATSUDA SATORU. Elucidating the regulation of T cell subsets. Int J Mol Med 2012; 30:1255-60. [DOI: 10.3892/ijmm.2012.1152] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 09/19/2012] [Indexed: 11/05/2022] Open
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32
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Qian C, Cao X. Naturally occurring CD1c+ human regulatory dendritic cells: Immunoregulators that are expanded in response to E. coli infection. Eur J Immunol 2012; 42:1388-92. [DOI: 10.1002/eji.201242632] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Cheng Qian
- National Key Laboratory of Medical Immunology & Institute of Immunology; Second Military Medical University; Shanghai; China
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