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Yang L, Su Y, Cai S, Ma H, Yang J, Xu M, Li Y, Huang C, Zeng Y, Li Q, Feng M, Li H, Diao L. Regional Analysis of the Immune Microenvironment in Human Endometrium. Am J Reprod Immunol 2024; 92:e13921. [PMID: 39225584 DOI: 10.1111/aji.13921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 07/10/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024] Open
Abstract
PROBLEM Endometrial immune cells are essential for maintaining homeostasis and the endometrial receptivity to embryo implantation. Understanding regional variations in endometrial immune cell populations is crucial for comprehending normal endometrial function and the pathophysiology of endometrial disorders. Despite previous studies focusing on the overall immune cell composition and function in the endometrium, regional variations in premenopausal women remain unclear. METHOD OF STUDY Endometrial biopsies were obtained from four regions (anterior, posterior, left lateral, and right lateral) of premenopausal women undergoing hysteroscopy with no abnormalities. A 15-color human endometrial immune cell-focused flow cytometry panel was used for analysis. High-dimensional flow cytometry combined with a clustering algorithm was employed to unravel the complexity of endometrial immune cells. Additionally, multiplex immunofluorescent was performed for further validation. RESULTS Our findings revealed no significant variation in the distribution and abundance of immune cells across different regions under normal conditions during the proliferative phase. Each region harbored similar immune cell subtypes, indicating a consistent immune microenvironment. However, when comparing normal regions to areas with focal hemorrhage, significant differences were observed. An increase in CD8+ T cells highlights the impact of localized abnormalities on the immune microenvironment. CONCLUSIONS Our study demonstrates that the endometrial immune cell landscape is consistent across different anatomical regions during the proliferative phase in premenopausal women. This finding has important implications for understanding normal endometrial function and the pathophysiology of endometrial disorders.
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Affiliation(s)
- Lingtao Yang
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-implantation, Shenzhen, China
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yiyi Su
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Songchen Cai
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-implantation, Shenzhen, China
| | - Huan Ma
- School of Medicine, The Chinese University of Hong Kong, Shenzhen, China
| | - Jing Yang
- Department of Hematology, National Institute for Data Science in Health and Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Mingjuan Xu
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-implantation, Shenzhen, China
| | - Yuye Li
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-implantation, Shenzhen, China
| | - Chunyu Huang
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-implantation, Shenzhen, China
| | - Yong Zeng
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-implantation, Shenzhen, China
| | - Qiyuan Li
- Department of Hematology, National Institute for Data Science in Health and Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Mingqian Feng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Hanjie Li
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Lianghui Diao
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-implantation, Shenzhen, China
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Gao Y, Han S, Lu F, Liu Q, Yang J, Wang W, Wang Y, Zhang J, Ju R, Shen X, Zhao Y, Wang H, Tan W, Wang L. Dimethyl-Dioctadecyl-Ammonium Bromide/Poly(lactic acid) Nanoadjuvant Enhances the Immunity and Cross-Protection of an NM2e-Based Universal Influenza Vaccine. ACS NANO 2024; 18:12905-12916. [PMID: 38721835 DOI: 10.1021/acsnano.4c00668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
For most frequent respiratory viruses, there is an urgent need for a universal influenza vaccine to provide cross-protection against intra- and heterosubtypes. We previously developed an Escherichia coli fusion protein expressed extracellular domain of matrix 2 (M2e) and nucleoprotein, named NM2e, and then combined it with an aluminum adjuvant, forming a universal vaccine. Although NM2e has demonstrated a protective effect against the influenza virus in mice to some extent, further improvement is still needed for the induction of immune responses ensuring adequate cross-protection against influenza. Herein, we fabricated a cationic solid lipid nanoadjuvant using poly(lactic acid) (PLA) and dimethyl-dioctadecyl-ammonium bromide (DDAB) and loaded NM2e to generate an NM2e@DDAB/PLA nanovaccine (Nv). In vitro experiments suggested that bone marrow-derived dendritic cells incubated with Nv exhibited ∼4-fold higher antigen (Ag) uptake than NM2e at 16 h along with efficient activation by NM2e@DDAB/PLA Nv. In vivo experiments revealed that Ag of the Nv group stayed in lymph nodes (LNs) for more than 14 days after initial immunization and DCs in LNs were evidently activated and matured. Furthermore, the Nv primed T and B cells for robust humoral and cellular immune responses after immunization. It also induced a ratio of IgG2a/IgG1 higher than that of NM2e to a considerable extent. Moreover, NM2e@DDAB/PLA Nv quickly restored body weight and improved survival of homo- and heterosubtype influenza challenged mice, and the cross-protection efficiency was over 90%. Collectively, our study demonstrated that NM2e@DDAB/PLA Nv could offer notable protection against homo- and heterosubtype influenza virus challenges, offering the potential for the development of a universal influenza vaccine.
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Affiliation(s)
- Yuan Gao
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, College of Chemistry, Chemistry Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Shulan Han
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, P.R. China
| | - Funa Lu
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, P.R. China
- Basic Medical College, Inner Mongolia Medical University, Hohhot 010010, P.R. China
| | - Qi Liu
- School of Engineering Medicine, Beihang University, Beijing 100191, China
| | - Jun Yang
- Beijing Economic-Technological Development Area (BDA), Beijing Tide Pharmaceutical Co., Ltd, No.8 East Rongjing Street, Beijing 100176, China
| | - Wenling Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, P.R. China
| | - Yuanyuan Wang
- Beijing Institute of Petrochemical Technology, Beijing 102617, P.R. China
| | - Jing Zhang
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Ruijun Ju
- Beijing Institute of Petrochemical Technology, Beijing 102617, P.R. China
| | - Xiaoling Shen
- Basic Medical College, Inner Mongolia Medical University, Hohhot 010010, P.R. China
| | - Yanping Zhao
- Beijing Economic-Technological Development Area (BDA), Beijing Tide Pharmaceutical Co., Ltd, No.8 East Rongjing Street, Beijing 100176, China
| | - Hongjun Wang
- Beijing Economic-Technological Development Area (BDA), Beijing Tide Pharmaceutical Co., Ltd, No.8 East Rongjing Street, Beijing 100176, China
| | - Wenjie Tan
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, P.R. China
| | - Lianyan Wang
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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Mahallawi WH, Khabour OF. Pandemic H1N1 influenza virus triggers a strong T helper cell response in human nasopharynx-associated lymphoid tissues. Saudi J Biol Sci 2024; 31:103941. [PMID: 38327659 PMCID: PMC10847369 DOI: 10.1016/j.sjbs.2024.103941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/13/2024] [Accepted: 01/26/2024] [Indexed: 02/09/2024] Open
Abstract
The pH1N1 belongs to influenza A family that is sometimes transmitted to humans via contact with pigs. Human tonsillar immune cells are widely used as in vitro models to study responses to influenza viruses. In the current study, human memory (M) and naïve (N) T cells responses in mononuclear cells of tonsil (TMCs) and peripheral blood (PBMCs) were stimulated by pH1N1/sH1N1, and then stained for estimation of T cells proliferation index. Individuals with an anti-pH1N1 hemagglutination (HA) inhibition (HAI) titer of forty or greater exhibited stronger HA-specific M-CD4+ T cells responses to pH1N1 in TMCs/PBMCs than those with an HAI titer of less than forty (P < 0.01). In addition, a positive correlation was observed between proliferation indices of M-CD4+ T cells induced by exposure to sH1N1/pH1N1 (p < 0.01). Moreover, a strong correlation (p < 0.001) was detected between subjects' age and their HA-specific M-CD4+ T cells induced by pH1N1 exposure, indicating that this response was age-dependent. Finally, stimulation of TMCs with pH1N1-HA resulted in a significant M-CD8+ T cells response (p < 0.05). In conclusion, pH1N1 HA elicits a strong M-CD4+ T cells response in TMCs. Additionally, this response correlates with the response to sH1N1 suggesting cross-reactivity in T cells epitopes directed against HAs of both viral strains.
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Affiliation(s)
- Waleed H. Mahallawi
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, Taibah University, Madinah, Saudi Arabia
| | - Omar F. Khabour
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
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Hua S, Latha K, Marlin R, Benmeziane K, Bossevot L, Langlois S, Relouzat F, Dereuddre-Bosquet N, Le Grand R, Cavarelli M. Intestinal immunological events of acute and resolved SARS-CoV-2 infection in non-human primates. Mucosal Immunol 2024; 17:25-40. [PMID: 37827377 DOI: 10.1016/j.mucimm.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/27/2023] [Accepted: 10/04/2023] [Indexed: 10/14/2023]
Abstract
SARS-CoV-2 infection has been associated with intestinal mucosal barrier damage, leading to microbial and endotoxin translocation, heightened inflammatory responses, and aggravated disease outcomes. This study aimed to investigate the immunological mechanisms associated with impaired intestinal barrier function. We conducted a comprehensive analysis of gut damage and inflammation markers and phenotypic characterization of myeloid and lymphoid populations in the ileum and colon of SARS-CoV-2-exposed macaques during both the acute and resolved infection phases. Our findings revealed a significant accumulation of terminally differentiated and activated CD4+ and CD8+ T cells, along with memory B cells, within the gastrointestinal tract up to 43 days after exposure to SARS-CoV-2. This robust infection-induced immune response was accompanied by a notable depletion of plasmacytoid dendritic cells, myeloid dendritic cells, and macrophages, particularly affecting the colon during the resolved infection phase. Additionally, we identified a population of CX3CR1Low inflammatory macrophages associated with intestinal damage during active viral replication. Elevated levels of immune activation and gut damage markers, and perturbation of macrophage homeostasis, persisted even after the resolution of the infection, suggesting potential long-term clinical sequelae. These findings enhance our understanding of gastrointestinal immune pathology following SARS-CoV-2 infection and provide valuable information for developing and testing medical countermeasures.
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Affiliation(s)
- Stéphane Hua
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Krishna Latha
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Romain Marlin
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Keltouma Benmeziane
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Laetitia Bossevot
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Sébastien Langlois
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Francis Relouzat
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Nathalie Dereuddre-Bosquet
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Roger Le Grand
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Mariangela Cavarelli
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France.
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5
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Du X, Li M, Huan C, Lv G. Dendritic cells in liver transplantation immune response. Front Cell Dev Biol 2023; 11:1277743. [PMID: 37900282 PMCID: PMC10606587 DOI: 10.3389/fcell.2023.1277743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
Dendritic cells (DCs) are the most powerful antigen presenting cells (APCs), they are considered one of the key regulatory factors in the liver immune system. There is currently much interest in modulating DC function to improve transplant immune response. In liver transplantation, DCs participate in both the promotion and inhibition of the alloreponse by adopting different phenotypes and function. Thus, in this review, we discussed the origin, maturation, migration and pathological effects of several DC subsets, including the conventional DC (cDC), plasmacytoid DC (pDC) and monocyte-derived DC (Mo-DC) in liver transplantation, and we summarized the roles of these DC subsets in liver transplant rejection and tolerance. In addition, we also outlined the latest progress in DC-based related treatment regimens. Overall, our discussion provides a beneficial resource for better understanding the biology of DCs and their manipulation to improve the immune adaptability of patients in transplant status.
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Affiliation(s)
- Xiaodong Du
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Mingqian Li
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Chen Huan
- Center of Infectious Diseases and Pathogen Biology, Institute of Virology and AIDS Research, Key Laboratory of Organ Regeneration and Transplantation of The Ministry of Education, The First Hospital of Jilin University, Changchun, China
| | - Guoyue Lv
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
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Guo X, He C, Xin S, Gao H, Wang B, Liu X, Zhang S, Gong F, Yu X, Pan L, Sun F, Xu J. Current perspective on biological properties of plasmacytoid dendritic cells and dysfunction in gut. Immun Inflamm Dis 2023; 11:e1005. [PMID: 37773693 PMCID: PMC10510335 DOI: 10.1002/iid3.1005] [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: 06/18/2023] [Revised: 08/27/2023] [Accepted: 08/30/2023] [Indexed: 10/01/2023] Open
Abstract
Plasmacytoid dendritic cells (pDCs), a subtype of DC, possess unique developmental, morphological, and functional traits that have sparked much debate over the years whether they should be categorized as DCs. The digestive system has the greatest mucosal tissue overall, and the pDC therein is responsible for shaping the adaptive and innate immunity of the gastrointestinal tract, resisting pathogen invasion through generating type I interferons, presenting antigens, and participating in immunological responses. Therefore, its alleged importance in the gut has received a lot of attention in recent years, and a fresh functional overview is still required. Here, we summarize the current understanding of mouse and human pDCs, ranging from their formation and different qualities compared with related cell types to their functional characteristics in intestinal disorders, including colon cancer, infections, autoimmune diseases, and intestinal graft-versus-host disease. The purpose of this review is to convey our insights, demonstrate the limits of existing research, and lay a theoretical foundation for the rational development and use of pDCs in future clinical practice.
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Affiliation(s)
- Xueran Guo
- Department of Clinical Medicine, Beijing An Zhen HospitalCapital Medical UniversityBeijingChina
| | - Chengwei He
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Shuzi Xin
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Han Gao
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
- Department of Clinical Laboratory, Aerospace Center HospitalPeking UniversityBeijingChina
| | - Boya Wang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Xiaohui Liu
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Sitian Zhang
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Fengrong Gong
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Xinyi Yu
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Luming Pan
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Fangling Sun
- Department of Laboratory Animal Research, Xuan Wu HospitalCapital Medical UniversityBeijingChina
| | - Jingdong Xu
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
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7
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Arroyo Hornero R, Idoyaga J. Plasmacytoid dendritic cells: A dendritic cell in disguise. Mol Immunol 2023; 159:38-45. [PMID: 37269733 PMCID: PMC10625168 DOI: 10.1016/j.molimm.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/20/2023] [Indexed: 06/05/2023]
Abstract
Since their discovery, the identity of plasmacytoid dendritic cells (pDCs) has been at the center of a continuous dispute in the field, and their classification as dendritic cells (DCs) has been recently re-challenged. pDCs are different enough from the rest of the DC family members to be considered a lineage of cells on their own. Unlike the exclusive myeloid ontogeny of cDCs, pDCs may have dual origin developing from myeloid and lymphoid progenitors. Moreover, pDCs have the unique ability to quickly secrete abundant levels of type I interferon (IFN-I) in response to viral infections. In addition, pDCs undergo a differentiation process after pathogen recognition that allows them to activate T cells, a feature that has been shown to be independent of presumed contaminating cells. Here, we aim to provide an overview of the historic and current understanding of pDCs and argue that their classification as either lymphoid or myeloid may be an oversimplification. Instead, we propose that the capacity of pDCs to link the innate and adaptive immune response by directly sensing pathogens and activating adaptive immune responses justify their inclusion within the DC network.
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Affiliation(s)
- Rebeca Arroyo Hornero
- Microbiology & Immunology Department, and Immunology Program, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Juliana Idoyaga
- Microbiology & Immunology Department, and Immunology Program, Stanford University School of Medicine, Stanford, CA 94305, USA.
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8
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Qi C, Feng Y, Jiang Y, Chen W, Vakal S, Chen JF, Zheng W. A 2AR antagonist treatment for multiple sclerosis: Current progress and future prospects. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2023; 170:185-223. [PMID: 37741692 DOI: 10.1016/bs.irn.2023.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
Abstract
Emerging evidence suggests that both selective and non-selective Adenosine A2A receptor (A2AR) antagonists could effectively protect mice from experimental autoimmune encephalomyelitis (EAE), which is the most commonly used animal model for multiple sclerosis (MS) research. Meanwhile, the recent FDA approval of Nourianz® (istradefylline) in 2019 as an add-on treatment to levodopa in Parkinson's disease (PD) with "OFF" episodes, along with its proven clinical safety, has prompted us to explore the potential of A2AR antagonists in treating multiple sclerosis (MS) through clinical trials. However, despite promising findings in experimental autoimmune encephalomyelitis (EAE), the complex and contradictory role of A2AR signaling in EAE pathology has raised concerns about the feasibility of using A2AR antagonists as a therapeutic approach for MS. This review addresses the potential effect of A2AR antagonists on EAE/MS in both the peripheral immune system (PIS) and the central nervous system (CNS). In brief, A2AR antagonists had a moderate effect on the proliferation and inflammatory response, while exhibiting a potent anti-inflammatory effect in the CNS through their impact on microglia, astrocytes, and the endothelial cells/epithelium of the blood-brain barrier. Consequently, A2AR signaling remains an essential immunomodulator in EAE/MS, suggesting that A2AR antagonists hold promise as a drug class for treating MS.
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Affiliation(s)
- Chenxing Qi
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, P.R. China; Oujiang Laboratory (Zhejiang Laboratory for Regenerative Medicine, Vision and Brain Health), School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, P.R. China
| | - Yijia Feng
- Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Yiwei Jiang
- Alberta Institute, Wenzhou Medical University, Wenzhou, P.R. China
| | - Wangchao Chen
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, P.R. China
| | - Serhii Vakal
- Structural Bioinformatics Laboratory, Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Jiang-Fan Chen
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, P.R. China; Oujiang Laboratory (Zhejiang Laboratory for Regenerative Medicine, Vision and Brain Health), School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, P.R. China
| | - Wu Zheng
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, P.R. China; Oujiang Laboratory (Zhejiang Laboratory for Regenerative Medicine, Vision and Brain Health), School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, P.R. China.
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9
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Alesci A, Lauriano ER, Fumia A, Irrera N, Mastrantonio E, Vaccaro M, Gangemi S, Santini A, Cicero N, Pergolizzi S. Relationship between Immune Cells, Depression, Stress, and Psoriasis: Could the Use of Natural Products Be Helpful? MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27061953. [PMID: 35335319 PMCID: PMC8954591 DOI: 10.3390/molecules27061953] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/12/2022] [Accepted: 03/15/2022] [Indexed: 12/13/2022]
Abstract
Psoriasis is one of the most widespread chronic inflammatory skin diseases, affecting about 2%-3% of the worldwide adult population. The pathogenesis of this disease is quite complex, but an interaction between genetic and environmental factors has been recognized with an essential modulation of inflammatory and immune responses in affected patients. Psoriatic plaques generally represent the clinical psoriatic feature resulting from an abnormal proliferation and differentiation of keratinocytes, which cause dermal hyperplasia, skin infiltration of immune cells, and increased capillarity. Some scientific pieces of evidence have reported that psychological stress may play a key role in psoriasis, and the disease itself may cause stress conditions in patients, thus reproducing a vicious cycle. The present review aims at examining immune cell involvement in psoriasis and the relationship of depression and stress in its pathogenesis and development. In addition, this review contains a focus on the possible use of natural products, thus pointing out their mechanism of action in order to counteract clinical and psychological symptoms.
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Affiliation(s)
- Alessio Alesci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Stagno d’Alcontres, 31, 98166 Messina, Italy; (E.R.L.); (S.P.)
- Correspondence: (A.A.); (A.S.); (N.C.)
| | - Eugenia Rita Lauriano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Stagno d’Alcontres, 31, 98166 Messina, Italy; (E.R.L.); (S.P.)
| | - Angelo Fumia
- Department of Clinical and Experimental Medicine, University of Messina, Viale Gazzi, 98147 Messina, Italy; (A.F.); (S.G.)
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine—Section of Pharmacology, University of Messina, 98125 Messina, Italy;
| | | | - Mario Vaccaro
- Department of Clinical and Experimental Medicine—Section of Dermatology, University of Messina, 98125 Messina, Italy;
| | - Sebastiano Gangemi
- Department of Clinical and Experimental Medicine, University of Messina, Viale Gazzi, 98147 Messina, Italy; (A.F.); (S.G.)
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, 80131 Napoli, Italy
- Correspondence: (A.A.); (A.S.); (N.C.)
| | - Nicola Cicero
- Department of Biomedical and Dental Science and Morphofunctional Imaging, University of Messina, 98125 Messina, Italy
- Correspondence: (A.A.); (A.S.); (N.C.)
| | - Simona Pergolizzi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Stagno d’Alcontres, 31, 98166 Messina, Italy; (E.R.L.); (S.P.)
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10
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Abstract
PURPOSE OF REVIEW The clinical activity of new immunotherapies in cancer, such as anti-Programmed cell death 1 (PD-1)/Programmed death-ligand 1, has revealed the importance of the patient's immune system in controlling tumor development. As in infectious diseases, dendritic cells (DCs) are critical for inducing immune responses in cancer. Unfortunately, autologous DC-based vaccines have not yet demonstrated their clinical benefit. Here, we review recent research using allogeneic DCs as alternatives to autologous DCs to develop innovative therapeutic cancer vaccines. RECENT FINDINGS A novel approach using an allogeneic plasmacytoid dendritic cell (PDC) line as an antigen presentation platform showed great potency when used to prime and expand antitumor-specific CD8+ T cells in vitro and in vivo in a humanized mouse model. This PDC platform, named PDC∗vac, was first evaluated in the treatment of melanoma with encouraging results and is currently being evaluated in the treatment of lung cancer in combination with anti-PD-1 immunotherapy. SUMMARY Therapeutic cancer vaccines are of particular interest because they aim to help patients, to mount effective antitumor responses, especially those who insufficiently respond to immune checkpoint inhibitors. The use of an allogeneic plasmacytoid DC-based platform such as PDC∗vac could greatly potentiate the efficacy of these new immunotherapies.
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Affiliation(s)
- Joël Plumas
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, INSERM U1209, CNRS UMR 5309, Université Grenoble Alpes
- Research and Development Laboratory, Etablissement Français du Sang Auvergne-Rhône-Alpes
- PDC∗line Pharma SAS, Grenoble, France
- PDC∗line Pharma SA, Liège, Belgium
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11
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Salazar F, Bignell E, Brown GD, Cook PC, Warris A. Pathogenesis of Respiratory Viral and Fungal Coinfections. Clin Microbiol Rev 2022; 35:e0009421. [PMID: 34788127 PMCID: PMC8597983 DOI: 10.1128/cmr.00094-21] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Individuals suffering from severe viral respiratory tract infections have recently emerged as "at risk" groups for developing invasive fungal infections. Influenza virus is one of the most common causes of acute lower respiratory tract infections worldwide. Fungal infections complicating influenza pneumonia are associated with increased disease severity and mortality, with invasive pulmonary aspergillosis being the most common manifestation. Strikingly, similar observations have been made during the current coronavirus disease 2019 (COVID-19) pandemic. The copathogenesis of respiratory viral and fungal coinfections is complex and involves a dynamic interplay between the host immune defenses and the virulence of the microbes involved that often results in failure to return to homeostasis. In this review, we discuss the main mechanisms underlying susceptibility to invasive fungal disease following respiratory viral infections. A comprehensive understanding of these interactions will aid the development of therapeutic modalities against newly identified targets to prevent and treat these emerging coinfections.
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Affiliation(s)
- Fabián Salazar
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Elaine Bignell
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Gordon D. Brown
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Peter C. Cook
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Adilia Warris
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
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12
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Cuypers F, Schäfer A, Skorka SB, Surabhi S, Tölken LA, Paulikat AD, Kohler TP, Otto SA, Mettenleiter TC, Hammerschmidt S, Blohm U, Siemens N. Innate immune responses at the asymptomatic stage of influenza A viral infections of Streptococcus pneumoniae colonized and non-colonized mice. Sci Rep 2021; 11:20609. [PMID: 34663857 PMCID: PMC8523748 DOI: 10.1038/s41598-021-00211-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/07/2021] [Indexed: 11/09/2022] Open
Abstract
Seasonal Influenza A virus (IAV) infections can promote dissemination of upper respiratory tract commensals such as Streptococcus pneumoniae to the lower respiratory tract resulting in severe life-threatening pneumonia. Here, we aimed to compare innate immune responses in the lungs of healthy colonized and non-colonized mice after IAV challenge at the initial asymptomatic stage of infection. Responses during a severe bacterial pneumonia were profiled for comparison. Cytokine and innate immune cell imprints of the lungs were analyzed. Irrespective of the colonization status, mild H1N1 IAV infection was characterized by a bi-phasic disease progression resulting in full recovery of the animals. Already at the asymptomatic stage of viral infection, the pro-inflammatory cytokine response was as high as in pneumococcal pneumonia. Flow cytometry analyses revealed an early influx of inflammatory monocytes into the lungs. Neutrophil influx was mostly limited to bacterial infections. The majority of cells, except monocytes, displayed an activated phenotype characterized by elevated CCR2 and MHCII expression. In conclusion, we show that IAV challenge of colonized healthy mice does not automatically result in severe co-infection. However, a general local inflammatory response was noted at the asymptomatic stage of infection irrespective of the infection type.
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Affiliation(s)
- Fabian Cuypers
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany
| | - Alexander Schäfer
- Institute of Immunology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald - Island of Riems, Germany
| | - Sebastian B Skorka
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany
| | - Surabhi Surabhi
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany
| | - Lea A Tölken
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany
| | - Antje D Paulikat
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany
| | - Thomas P Kohler
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany
| | - Saskia A Otto
- Institute for Marine Ecosystem and Fisheries Science (IMF), Center for Earth System Research and Sustainability (CEN), University of Hamburg, Hamburg, Germany
| | - Thomas C Mettenleiter
- Institute of Immunology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald - Island of Riems, Germany
| | - Sven Hammerschmidt
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany.
| | - Ulrike Blohm
- Institute of Immunology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald - Island of Riems, Germany
| | - Nikolai Siemens
- Department of Molecular Genetics and Infection Biology, University of Greifswald, Greifswald, Germany.
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13
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Nuwarda RF, Alharbi AA, Kayser V. An Overview of Influenza Viruses and Vaccines. Vaccines (Basel) 2021; 9:1032. [PMID: 34579269 PMCID: PMC8473132 DOI: 10.3390/vaccines9091032] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/12/2021] [Accepted: 09/13/2021] [Indexed: 01/12/2023] Open
Abstract
Influenza remains one of the major public health concerns because it causes annual epidemics and can potentially instigate a global pandemic. Numerous countermeasures, including vaccines and antiviral treatments, are in use against seasonal influenza infection; however, their effectiveness has always been discussed due to the ongoing resistance to antivirals and relatively low and unpredictable efficiency of influenza vaccines compared to other vaccines. The growing interest in vaccines as a promising approach to prevent and control influenza may provide alternative vaccine development options with potentially increased efficiency. In addition to currently available inactivated, live-attenuated, and recombinant influenza vaccines on the market, novel platforms such as virus-like particles (VLPs) and nanoparticles, and new vaccine formulations are presently being explored. These platforms provide the opportunity to design influenza vaccines with improved properties to maximize quality, efficacy, and safety. The influenza vaccine manufacturing process is also moving forward with advancements relating to egg- and cell-based production, purification processes, and studies into the physicochemical attributes and vaccine degradation pathways. These will contribute to the design of more stable, optimized vaccine formulations guided by contemporary analytical testing methods and via the implementation of the latest advances in the field.
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Affiliation(s)
| | | | - Veysel Kayser
- Faculty of Medicine and Health, Sydney Pharmacy School, The University of Sydney, Sydney, NSW 2006, Australia; (R.F.N.); (A.A.A.)
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14
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Bahadoran A, Bezavada L, Smallwood HS. Fueling influenza and the immune response: Implications for metabolic reprogramming during influenza infection and immunometabolism. Immunol Rev 2021; 295:140-166. [PMID: 32320072 DOI: 10.1111/imr.12851] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 12/11/2022]
Abstract
Recent studies support the notion that glycolysis and oxidative phosphorylation are rheostats in immune cells whose bioenergetics have functional outputs in terms of their biology. Specific intrinsic and extrinsic molecular factors function as molecular potentiometers to adjust and control glycolytic to respiratory power output. In many cases, these potentiometers are used by influenza viruses and immune cells to support pathogenesis and the host immune response, respectively. Influenza virus infects the respiratory tract, providing a specific environmental niche, while immune cells encounter variable nutrient concentrations as they migrate in response to infection. Immune cell subsets have distinct metabolic programs that adjust to meet energetic and biosynthetic requirements to support effector functions, differentiation, and longevity in their ever-changing microenvironments. This review details how influenza coopts the host cell for metabolic reprogramming and describes the overlap of these regulatory controls in immune cells whose function and fate are dictated by metabolism. These details are contextualized with emerging evidence of the consequences of influenza-induced changes in metabolic homeostasis on disease progression.
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Affiliation(s)
- Azadeh Bahadoran
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Lavanya Bezavada
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Heather S Smallwood
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, USA
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15
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Nakano R, Yoshida O, Kimura S, Nakao T, Yokota S, Ono Y, Minervini MI, Geller DA, Thomson AW. Donor plasmacytoid dendritic cells modulate effector and regulatory T cell responses in mouse spontaneous liver transplant tolerance. Am J Transplant 2021; 21:2040-2055. [PMID: 33247989 PMCID: PMC8628164 DOI: 10.1111/ajt.16412] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/22/2020] [Accepted: 11/17/2020] [Indexed: 01/25/2023]
Abstract
We assessed the role of donor liver non-conventional plasmacytoid dendritic cells (pDCs) in spontaneous liver transplant tolerance in a fully MHC-mismatched (C57BL/6 (H2b ) to C3H (H2k )) mouse model. Compared with spleen pDCs, liver pDCs expressed higher levels of DNAX-activating protein of 12 kDa and its co-receptor, triggering receptor expressed by myeloid cells 2, and higher ratios of programed death ligand-1 (PD-L1):costimulatory CD80/CD86 in the steady state and after Toll-like receptor 9 ligation. Moreover, liver pDCs potently suppressed allogeneic CD4+ and CD8+ T cell proliferative responses. Survival of pDC-depleted livers was much poorer (median survival time: 25 days) than that of either untreated donor livers or pDC-depleted syngeneic donor livers that survived indefinitely. Numbers of forkhead box p3 (FoxP3)+ regulatory T cells in grafts and mesenteric lymph nodes of mice given pDC-depleted allogeneic livers were reduced significantly compared with those in recipients of untreated livers. Graft-infiltrating CD8+ T cells with an exhausted phenotype (programed cell death protein 1+ , T cell immunoglobulin and mucin domain-containing protein 3+ ) were also reduced in recipients of pDC-depleted livers. PD1-PD-L1 pathway blockade reversed the reduction in exhausted T cells. These novel observations link immunoregulatory functions of liver interstitial pDCs, alloreactive T cell exhaustion, and spontaneous liver transplant tolerance.
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Affiliation(s)
- Ryosuke Nakano
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Osamu Yoshida
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Shoko Kimura
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,Transplant Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Toshimasa Nakao
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,Department of Drug Discovery Medicine, Kyoto Prefectural University of Medicine, Kyoto City, Japan
| | - Shinichiro Yokota
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,Department of Surgery, Allegheny General Hospital, Pittsburgh, Pennsylvania
| | - Yoshihiro Ono
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Marta I. Minervini
- Department of Pathology, Division of Transplantation Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - David A. Geller
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,Liver Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Angus W. Thomson
- Department of Surgery, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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16
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Asano S, Sato H, Mori K, Yamazaki K, Naito H, Suzuki H. Necrotizing lymphadenitis may be induced by overexpression of Toll-like receptor7 (TLR7) caused by reduced TLR9 transport in plasmacytoid dendritic cells (PDCs). J Clin Exp Hematop 2021; 61:85-92. [PMID: 33994431 PMCID: PMC8265496 DOI: 10.3960/jslrt.20060] [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] [Indexed: 11/24/2022] Open
Abstract
Necrotizing lymphadenitis (NEL) is a self-limited systemic disease exhibiting characteristic clinical features. The pathogenesis of the disease remains unclear, but it may be associated with viral infection. In lymph nodes affected by this disease, innumerable plasmacytoid dendritic cells produce interferon-α when triggered by certain viral stimuli. IFN-α presents antigens causing the transformation of CD8+ cells into immunoblasts and apoptosis of CD4+ cells. From the perspective of innate immunity, UNC93B1, an endoplasmic reticulum (ER)-resident protein, associates more strongly with TLR9 than TLR7. Homeostasis is maintained under normal conditions. However, in NEL, TLR 7 was observed more than TLR 9, possibly because mutant type UNC93B1 associates more tightly with TLR7. The inhibitory effects against TLR7 by TLR9 were reported to disappear. It is likely that more TLR7 than TLR9 is transported from the ER to endolysosomes. In conclusion, overexpression of TLR7, an innate immune sensor of microbial single-stranded RNA, is inferred. Consequently, NEL may be induced.
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Affiliation(s)
| | - Hiroko Sato
- Department of Dentistry and Oral Surgery, Iwaki City Medical Center, Iwaki, Japan
| | - Kikuo Mori
- Pathology Center, Iwaki City Medical Center, Iwaki, Japan
| | | | - Hiroyuki Naito
- Department of Dentistry and Oral Surgery, Iwaki City Medical Center, Iwaki, Japan
| | - Hoshiro Suzuki
- Department of Pediatrics, Iwaki City Medical Center, Iwaki, Japan
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17
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Activation of plasmacytoid dendritic cells promotes AML-cell fratricide. Oncotarget 2021; 12:878-890. [PMID: 33953842 PMCID: PMC8092344 DOI: 10.18632/oncotarget.27949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia (AML) is characterized by the proliferation of immature myeloid blasts and a suppressed immune state. Interferons have been previously shown to aid in the clearance of AML cells. Type I interferons are produced primarily by plasmacytoid dendritic cells (pDCs). However, these cells exist in a quiescent state in AML. Because pDCs express TLR 7–9, we hypothesized that the TLR7/8 agonist R848 would be able to reprogram them toward a more active, IFN-producing phenotype. Consistent with this notion, we found that R848-treated pDCs from patients produced significantly elevated levels of IFNβ. In addition, they showed increased expression of the immune-stimulatory receptor CD40. We next tested whether IFNβ would influence antibody-mediated fratricide among AML cells, as our recent work showed that AML cells could undergo cell-to cell killing in the presence of the CD38 antibody daratumumab. We found that IFNβ treatment led to a significant, IRF9-dependent increase in CD38 expression and a subsequent increase in daratumumab-mediated cytotoxicity and decreased colony formation. These findings suggest that the tolerogenic phenotype of pDCs in AML can be reversed, and also demonstrate a possible means of enhancing endogenous Type I IFN production that would promote daratumumab-mediated clearance of AML cells.
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18
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Topham DJ, DeDiego ML, Nogales A, Sangster MY, Sant A. Immunity to Influenza Infection in Humans. Cold Spring Harb Perspect Med 2021; 11:a038729. [PMID: 31871226 PMCID: PMC7919402 DOI: 10.1101/cshperspect.a038729] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review discusses the human immune responses to influenza infection with some insights from studies using animal models, such as experimental infection of mice. Recent technological advances in the study of human immune responses have greatly added to our knowledge of the infection and immune responses, and therefore much of the focus is on recent studies that have moved the field forward. We consider the complexity of the adaptive response generated by many sequential encounters through infection and vaccination.
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Affiliation(s)
- David J Topham
- David H. Smith Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Marta L DeDiego
- Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Cientificas, 28049 Madrid, Spain
| | - Aitor Nogales
- Instituto Nacional de Investigación y Tecnologia Agraria y Ailmentaria, 28040 Madrid, Spain
| | - Mark Y Sangster
- David H. Smith Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Andrea Sant
- David H. Smith Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York 14642, USA
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19
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Psarras A, Antanaviciute A, Alase A, Carr I, Wittmann M, Emery P, Tsokos GC, Vital EM. TNF-α Regulates Human Plasmacytoid Dendritic Cells by Suppressing IFN-α Production and Enhancing T Cell Activation. THE JOURNAL OF IMMUNOLOGY 2021; 206:785-796. [PMID: 33441439 PMCID: PMC7851743 DOI: 10.4049/jimmunol.1901358] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 11/25/2020] [Indexed: 12/29/2022]
Abstract
TNF downregulates IFN-α and TNF production by human pDCs. TNF downregulates IRF7 and NF-κB pathways and upregulates Ag processing in pDCs. TNF enhances Ag presentation and T cell activation properties in pDCs.
Human plasmacytoid dendritic cells (pDCs) play a vital role in modulating immune responses. They can produce massive amounts of type I IFNs in response to nucleic acids via TLRs, but they are also known to possess weak Ag-presenting properties inducing CD4+ T cell activation. Previous studies showed a cross-regulation between TNF-α and IFN-α, but many questions remain about the effect of TNF-α in regulating human pDCs. In this study, we showed that TNF-α significantly inhibited the secretion of IFN-α and TNF-α of TLR-stimulated pDCs. Instead, exogenous TNF-α promoted pDC maturation by upregulating costimulatory molecules and chemokine receptors such as CD80, CD86, HLA-DR, and CCR7. Additionally, RNA sequencing analysis showed that TNF-α inhibited IFN-α and TNF-α production by downregulating IRF7 and NF-κB pathways, while it promoted Ag processing and presentation pathways as well as T cell activation and differentiation. Indeed, TNF-α–treated pDCs induced in vitro higher CD4+ T cell proliferation and activation, enhancing the production of Th1 and Th17 cytokines. In conclusion, TNF-α favors pDC maturation by switching their main role as IFN-α–producing cells to a more conventional dendritic cell phenotype. The functional status of pDCs might therefore be strongly influenced by their overall inflammatory environment, and TNF-α might regulate IFN-α–mediated aspects of a range of autoimmune and inflammatory diseases.
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Affiliation(s)
- Antonios Psarras
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds LS7 4SA, United Kingdom.,National Institute for Health Research Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds LS7 4SA, United Kingdom.,Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215; and
| | - Agne Antanaviciute
- Leeds Institute for Data Analytics, University of Leeds, Leeds LS9 7TF, United Kingdom
| | - Adewonuola Alase
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds LS7 4SA, United Kingdom.,National Institute for Health Research Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds LS7 4SA, United Kingdom
| | - Ian Carr
- Leeds Institute for Data Analytics, University of Leeds, Leeds LS9 7TF, United Kingdom
| | - Miriam Wittmann
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds LS7 4SA, United Kingdom.,National Institute for Health Research Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds LS7 4SA, United Kingdom
| | - Paul Emery
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds LS7 4SA, United Kingdom.,National Institute for Health Research Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds LS7 4SA, United Kingdom
| | - George C Tsokos
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215; and
| | - Edward M Vital
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds LS7 4SA, United Kingdom; .,National Institute for Health Research Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds LS7 4SA, United Kingdom
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20
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Kapoor T, Corrado M, Pearce EL, Pearce EJ, Grosschedl R. MZB1 enables efficient interferon α secretion in stimulated plasmacytoid dendritic cells. Sci Rep 2020; 10:21626. [PMID: 33318509 PMCID: PMC7736851 DOI: 10.1038/s41598-020-78293-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 11/23/2020] [Indexed: 12/19/2022] Open
Abstract
MZB1 is an endoplasmic reticulum (ER)-resident protein that plays an important role in the humoral immune response by enhancing the interaction of the μ immunoglobulin (Ig) heavy chain with the chaperone GRP94 and by augmenting the secretion of IgM. Here, we show that MZB1 is also expressed in plasmacytoid dendritic cells (pDCs). Mzb1−/− pDCs have a defect in the secretion of interferon (IFN) α upon Toll-like receptor (TLR) 9 stimulation and a reduced ability to enhance B cell differentiation towards plasma cells. Mzb1−/− pDCs do not properly expand the ER upon TLR9 stimulation, which may be accounted for by an impaired activation of ATF6, a regulator of the unfolded protein response (UPR). Pharmacological inhibition of ATF6 cleavage in stimulated wild type pDCs mimics the diminished IFNα secretion by Mzb1−/− pDCs. Thus, MZB1 enables pDCs to secrete high amounts of IFNα by mitigating ER stress via the ATF6-mediated UPR.
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Affiliation(s)
- Tanya Kapoor
- Department of Cellular and Molecular Immunology, Max Planck Institute of Immunobiology and Epigenetics, 79108, Freiburg, Germany
| | - Mauro Corrado
- Department of Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, 79108, Freiburg, Germany
| | - Erika L Pearce
- Department of Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, 79108, Freiburg, Germany
| | - Edward J Pearce
- Department of Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, 79108, Freiburg, Germany
| | - Rudolf Grosschedl
- Department of Cellular and Molecular Immunology, Max Planck Institute of Immunobiology and Epigenetics, 79108, Freiburg, Germany.
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21
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Rahil Z, Leylek R, Schürch CM, Chen H, Bjornson-Hooper Z, Christensen SR, Gherardini PF, Bhate SS, Spitzer MH, Fragiadakis GK, Mukherjee N, Kim N, Jiang S, Yo J, Gaudilliere B, Affrime M, Bock B, Hensley SE, Idoyaga J, Aghaeepour N, Kim K, Nolan GP, McIlwain DR. Landscape of coordinated immune responses to H1N1 challenge in humans. J Clin Invest 2020; 130:5800-5816. [PMID: 33044226 PMCID: PMC7598057 DOI: 10.1172/jci137265] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 07/31/2020] [Indexed: 12/18/2022] Open
Abstract
Influenza is a significant cause of morbidity and mortality worldwide. Here we show changes in the abundance and activation states of more than 50 immune cell subsets in 35 individuals over 11 time points during human A/California/2009 (H1N1) virus challenge monitored using mass cytometry along with other clinical assessments. Peak change in monocyte, B cell, and T cell subset frequencies coincided with peak virus shedding, followed by marked activation of T and NK cells. Results led to the identification of CD38 as a critical regulator of plasmacytoid dendritic cell function in response to influenza virus. Machine learning using study-derived clinical parameters and single-cell data effectively classified and predicted susceptibility to infection. The coordinated immune cell dynamics defined in this study provide a framework for identifying novel correlates of protection in the evaluation of future influenza therapeutics.
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Affiliation(s)
- Zainab Rahil
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Rebecca Leylek
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Christian M. Schürch
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Han Chen
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Zach Bjornson-Hooper
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Shannon R. Christensen
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Salil S. Bhate
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
- Department of Bioengineering, Stanford University, Stanford, California, USA
| | | | - Gabriela K. Fragiadakis
- UCSF Data Science CoLab and UCSF Department of Medicine, UCSF, San Francisco, California, USA
| | - Nilanjan Mukherjee
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Nelson Kim
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Sizun Jiang
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Jennifer Yo
- ARK Clinical Research, Long Beach, California, USA
| | - Brice Gaudilliere
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California, USA
| | | | | | - Scott E. Hensley
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Juliana Idoyaga
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Nima Aghaeepour
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Kenneth Kim
- ARK Clinical Research, Long Beach, California, USA
| | - Garry P. Nolan
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - David R. McIlwain
- Department of Pathology and
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
- WCCT Global, Cypress, California, USA
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22
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Giuliani A, Zuccarini M, Cichelli A, Khan H, Reale M. Critical Review on the Presence of Phthalates in Food and Evidence of Their Biological Impact. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E5655. [PMID: 32764471 PMCID: PMC7460375 DOI: 10.3390/ijerph17165655] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 12/14/2022]
Abstract
Phthalates are a huge class of chemicals with a wide spectrum of industrial uses, from the manufacture of plastics to food contact applications, children's toys, and medical devices. People and animals can be exposed through different routes (i.e., ingestion, inhalation, dermal, or iatrogenic exposure), as these compounds can be easily released from plastics to water, food, soil, air, making them ubiquitous environmental contaminants. In the last decades, phthalates and their metabolites have proven to be of concern, particularly in products for pregnant women or children. Moreover, many authors reported high concentrations of phthalates in soft drinks, mineral waters, wine, oil, ready-to-eat meals, and other products, as a possible consequence of their accumulation along the food production chain and their accidental release from packaging materials. However, due to their different physical and chemical properties, phthalates do not have the same human and environmental impacts and their association to several human diseases is still under debate. In this review we provide an overview of phthalate toxicity, pointing out the health and legal issues related to their occurrence in several types of food and beverage.
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Affiliation(s)
- Angela Giuliani
- "G.d'Annunzio" School of Advanced Studies, "G. d'Annunzio" University of Chieti-Pescara, 66100 Chieti, Italy
| | - Mariachiara Zuccarini
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, 66100 Chieti, Italy
- Aging Research Center, Ce.S.I., "G. d'Annunzio" University Foundation, 66100 Chieti, Italy
| | - Angelo Cichelli
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, 66100 Chieti, Italy
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Marcella Reale
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, 66100 Chieti, Italy
- Interuniversity Center on Interactions between Electromagnetic Fields and Biosystems, National Research Council-Institute for Electromagnetic Detection of The Environment, (ICEMB-CNR-IREA), 80124 Naples, Italy
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23
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van der Sluis RM, Egedal JH, Jakobsen MR. Plasmacytoid Dendritic Cells as Cell-Based Therapeutics: A Novel Immunotherapy to Treat Human Immunodeficiency Virus Infection? Front Cell Infect Microbiol 2020; 10:249. [PMID: 32528903 PMCID: PMC7264089 DOI: 10.3389/fcimb.2020.00249] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 04/29/2020] [Indexed: 12/15/2022] Open
Abstract
Dendritic cells (DCs) play a critical role in mediating innate and adaptive immune responses. Since their discovery in the late 1970's, DCs have been recognized as the most potent antigen-presenting cells (APCs). DCs have a superior capacity for acquiring, processing, and presenting antigens to T cells and they express costimulatory or coinhibitory molecules that determine immune activation or anergy. For these reasons, cell-based therapeutic approaches using DCs have been explored in cancer and infectious diseases but with limited success. In humans, DCs are divided into heterogeneous subsets with distinct characteristics. Two major subsets are CD11c+ myeloid (m)DCs and CD11c− plasmacytoid (p)DCs. pDCs are different from mDCs and play an essential role in the innate immune system via the production of type I interferons (IFN). However, pDCs are also able to take-up antigens and effectively cross present them. Given the rarity of pDCs in blood and technical difficulties in obtaining them from human blood samples, the understanding of human pDC biology and their potential in immunotherapeutic approaches (e.g. cell-based vaccines) is limited. However, due to the recent advancements in cell culturing systems that allow for the generation of functional pDCs from CD34+ hematopoietic stem and progenitor cells (HSPC), studying pDCs has become easier. In this mini-review, we hypothesize about the use of pDCs as a cell-based therapy to treat HIV by enhancing anti-HIV-immune responses of the adaptive immune system and enhancing the anti-viral responses of the innate immune system. Additionally, we discuss obstacles to overcome before this approach becomes clinically applicable.
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Affiliation(s)
- Renée M van der Sluis
- Aarhus Institute of Advanced Studies, Aarhus University, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
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24
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Charles J, Chaperot L, Hannani D, Bruder Costa J, Templier I, Trabelsi S, Gil H, Moisan A, Persoons V, Hegelhofer H, Schir E, Quesada JL, Mendoza C, Aspord C, Manches O, Coulie PG, Khammari A, Dreno B, Leccia MT, Plumas J. An innovative plasmacytoid dendritic cell line-based cancer vaccine primes and expands antitumor T-cells in melanoma patients in a first-in-human trial. Oncoimmunology 2020; 9:1738812. [PMID: 32313721 PMCID: PMC7153838 DOI: 10.1080/2162402x.2020.1738812] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 01/28/2020] [Accepted: 01/28/2020] [Indexed: 12/11/2022] Open
Abstract
The efficacy of immune checkpoint inhibitors has been shown to depend on preexisting antitumor immunity; thus, their combination with cancer vaccines is an attractive therapeutic approach. Plasmacytoid dendritic cells (PDC) are strong inducers of antitumor responses and represent promising vaccine candidates. We developed a cancer vaccine approach based on an allogeneic PDC line that functioned as a very potent antigen-presenting cell in pre-clinical studies. In this phase Ib clinical trial, nine patients with metastatic stage IV melanoma received up to 60 million irradiated PDC line cells loaded with 4 melanoma antigens, injected subcutaneously at weekly intervals. The primary endpoints were safety and tolerability. The vaccine was well tolerated and no serious vaccine-induced side effects were recorded. Strikingly, there was no allogeneic response toward the vaccine, but a significant increase in the frequency of circulating anti-tumor specific T lymphocytes was observed in two patients, accompanied by a switch from a naïve to memory phenotype, thus demonstrating priming of antigen-specific T-cells. Signs of clinical activity were observed, including four stable diseases according to IrRC and vitiligoïd lesions. Four patients were still alive at week 48. We also demonstrate the in vitro enhancement of specific T cell expansion induced by the synergistic combination of peptide-loaded PDC line with anti-PD-1, as compared to peptide-loaded PDC line alone. Taken together, these clinical observations demonstrate the ability of the PDC line based-vaccine to prime and expand antitumor CD8+ responses in cancer patients. Further trials should test the combination of this vaccine with immune checkpoint inhibitors.
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Affiliation(s)
- Julie Charles
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Dermatology Department, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France
| | - Laurence Chaperot
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,R&D Laboratory, Etablissement Français du Sang Auvergne-Rhône-Alpes, Grenoble, France
| | - Dalil Hannani
- Immune checkpoint inhibitors, PDCline Pharma, Grenoble
| | - Juliana Bruder Costa
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Dermatology Department, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France.,R&D Laboratory, Etablissement Français du Sang Auvergne-Rhône-Alpes, Grenoble, France
| | - Isabelle Templier
- Dermatology Department, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France
| | - Sabiha Trabelsi
- Dermatology Department, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France
| | - Hugo Gil
- Pathology Department, Institut de Biologie et Pathologie, CHU Grenoble Alpes, Grenoble, France
| | - Anaick Moisan
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Cell Therapy and Engineering Unit, Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint Ismier, France
| | - Virginie Persoons
- Cell Therapy and Engineering Unit, Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint Ismier, France
| | - Harald Hegelhofer
- Cell Therapy and Engineering Unit, Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint Ismier, France
| | - Edith Schir
- Délégation à la Recherche Clinique et à l'Innovation, CHU Grenoble Alpes, Grenoble, France
| | | | | | - Caroline Aspord
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,R&D Laboratory, Etablissement Français du Sang Auvergne-Rhône-Alpes, Grenoble, France
| | - Olivier Manches
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,R&D Laboratory, Etablissement Français du Sang Auvergne-Rhône-Alpes, Grenoble, France
| | - Pierre G Coulie
- de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Amir Khammari
- Onco-dermatology Department, CHU Nantes, CIC 1413, CRCINA, Nantes University, Nantes, France
| | - Brigitte Dreno
- Onco-dermatology Department, CHU Nantes, CIC 1413, CRCINA, Nantes University, Nantes, France
| | - Marie-Thérèse Leccia
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Dermatology Department, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France
| | - Joel Plumas
- Immunobiology and Immunotherapy of Chronic Diseases, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,R&D Laboratory, Etablissement Français du Sang Auvergne-Rhône-Alpes, Grenoble, France.,Immune checkpoint inhibitors, PDCline Pharma, Grenoble
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25
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Jamali A, Harris DL, Blanco T, Lopez MJ, Hamrah P. Resident plasmacytoid dendritic cells patrol vessels in the naïve limbus and conjunctiva. Ocul Surf 2020; 18:277-285. [PMID: 32109562 DOI: 10.1016/j.jtos.2020.02.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 02/15/2020] [Accepted: 02/22/2020] [Indexed: 12/21/2022]
Abstract
Plasmacytoid dendritic cells (pDCs) constitute a unique population of bone marrow-derived cells that play a pivotal role in linking innate and adaptive immune responses. While peripheral tissues are typically devoid of pDCs during steady state, few tissues do host resident pDCs. In the current study, we aim to assess presence and distribution of pDCs in naïve murine limbus and bulbar conjunctiva. Immunofluorescence staining followed by confocal microscopy revealed that the naïve bulbar conjunctiva of wild-type mice hosts CD45+ CD11clow PDCA-1+ pDCs. Flow cytometry confirmed the presence of resident pDCs in the bulbar conjunctiva through multiple additional markers, and showed that they express maturation markers, the T cell co-inhibitory molecules PD-L1 and B7-H3, and minor to negligible levels of T cell co-stimulatory molecules CD40, CD86, and ICAM-1. Epi-fluorescent microscopy of DPE-GFP×RAG1-/- transgenic mice with GFP-tagged pDCs indicated lower density of pDCs in the bulbar conjunctiva compared to the limbus. Further, intravital multiphoton microscopy revealed that resident pDCs accompany the limbal vessels and patrol the intravascular space. In vitro multiphoton microscopy showed that pDCs are attracted to human umbilical vein endothelial cells and interact with them during tube formation. In conclusion, our study shows that the limbus and bulbar conjunctiva are endowed with resident pDCs during steady state, which express maturation and classic T cell co-inhibitory molecules, engulf limbal vessels, and patrol intravascular spaces.
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Affiliation(s)
- Arsia Jamali
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Schepens Eye Research Institute/Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Deshea L Harris
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Schepens Eye Research Institute/Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Tomas Blanco
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Maria J Lopez
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Schepens Eye Research Institute/Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Pedram Hamrah
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA; Schepens Eye Research Institute/Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; Program in Immunology, School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA; Cornea Service, Tufts New England Eye Center, Boston, MA, USA.
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26
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Dewald HK, Hurley HJ, Fitzgerald-Bocarsly P. Regulation of Transcription Factor E2-2 in Human Plasmacytoid Dendritic Cells by Monocyte-Derived TNFα. Viruses 2020; 12:v12020162. [PMID: 32023836 PMCID: PMC7077321 DOI: 10.3390/v12020162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/17/2020] [Accepted: 01/26/2020] [Indexed: 12/15/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are innate immune cells and potent producers of interferon alpha (IFNα). Regulation of pDCs is crucial for prevention of aberrant IFN production. Transcription factor E2-2 (TCF4) regulates pDC development and function, but mechanisms of E2-2 control have not been investigated. We used freshly-isolated human peripheral blood mononuclear cells stimulated with toll-like receptor 7, 9, and 4 agonists to determine which factors regulate E2-2. After activation, pDCs decreased E2-2 expression. E2-2 downregulation occurred during the upregulation of costimulatory markers, after maximal IFN production. In congruence with previous reports in mice, we found that primary human pDCs that maintained high E2-2 levels produced more IFN, and had less expression of costimulatory markers. Stimulation of purified pDCs did not lead to E2-2 downregulation; therefore, we investigated if cytokine signaling regulates E2-2 expression. We found that tumor necrosis factor alpha (TNFα) produced by monocytes caused decreased E2-2 expression. All together, we established that primary human pDCs decrease E2-2 in response to TNFα and E2-2 low pDCs produce less IFN but exhibit more costimulatory molecules. Altered expression of E2-2 may represent a mechanism to attenuate IFN production and increase activation of the adaptive immune compartment.
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Affiliation(s)
- Hannah K. Dewald
- Rutgers School of Graduate Studies, Newark, NJ 07103, USA; (H.K.D.); (H.J.H.)
| | - Harry J. Hurley
- Rutgers School of Graduate Studies, Newark, NJ 07103, USA; (H.K.D.); (H.J.H.)
- Department of Pathology, Immunology, and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103, USA
| | - Patricia Fitzgerald-Bocarsly
- Rutgers School of Graduate Studies, Newark, NJ 07103, USA; (H.K.D.); (H.J.H.)
- Department of Pathology, Immunology, and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103, USA
- Correspondence: ; Tel.: +1-973-972-5233
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27
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The Role of Innate Leukocytes during Influenza Virus Infection. J Immunol Res 2019; 2019:8028725. [PMID: 31612153 PMCID: PMC6757286 DOI: 10.1155/2019/8028725] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/15/2019] [Indexed: 02/07/2023] Open
Abstract
Influenza virus infection is a serious threat to humans and animals, with the potential to cause severe pneumonia and death. Annual vaccination strategies are a mainstay to prevent complications related to influenza. However, protection from the emerging subtypes of influenza A viruses (IAV) even in vaccinated individuals is challenging. Innate immune cells are the first cells to respond to IAV infection in the respiratory tract. Virus replication-induced production of cytokines from airway epithelium recruits innate immune cells to the site of infection. These leukocytes, namely, neutrophils, monocytes, macrophages, dendritic cells, eosinophils, natural killer cells, innate lymphoid cells, and γδ T cells, become activated in response to IAV, to contain the virus and protect the airway epithelium while triggering the adaptive arm of the immune system. This review addresses different anti-influenza virus schemes of innate immune cells and how these cells fine-tune the balance between immunoprotection and immunopathology during IAV infection. Detailed understanding on how these innate responders execute anti-influenza activity will help to identify novel therapeutic targets to halt IAV replication and associated immunopathology.
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28
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Silva LBR, Taira CL, Dias LS, Souza ACO, Nosanchuk JD, Travassos LR, Taborda CP. Experimental Therapy of Paracoccidioidomycosis Using P10-Primed Monocyte-Derived Dendritic Cells Isolated From Infected Mice. Front Microbiol 2019; 10:1727. [PMID: 31417520 PMCID: PMC6685297 DOI: 10.3389/fmicb.2019.01727] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/12/2019] [Indexed: 11/13/2022] Open
Abstract
Paracoccidioidomycosis (PCM) is an endemic mycosis in Latin American caused by the thermodimorphic fungi of the genus Paracoccidioides spp. Notably, a Th1 immune response is required to control PCM. In this context, dendritic cells (DCs) seem to be essential players in capture, processing and presentation of Paracoccidioides antigens to naïve T cells and their further activation. We have previously demonstrated that differentiated DCs from bone marrow cells, pulsed with the immunoprotective peptide 10 (P10), effectively control experimental PCM immunocompetent and immunosuppressed mice. However, this procedure may not be infeasible or it is limited for the therapy of human patients. Therefore, we have sought a less invasive but equally effective approach that would better mimics the autologous transplant of DC in a human patient. Here, we isolated and generated monocyte differentiated dendritic cells (MoDCs) from infected mice, pulsed them with P-10, and used them in the therapy of PCM in syngeneic mice. Similar to the results using BMDCs, the P10-pulsed MoDCs stimulated the proliferation of CD4+ T lymphocytes, induced a mixed production of Th1/Th2 cytokines and decreased the fungal burden in murine lungs in the setting of PCM. The process of differentiating MoDCs derived from an infected host, and subsequently used for therapy of PCM is much simpler than that for obtaining BMDCs, and represents a more reasonable approach to treat patients infected with Paracoccidioides. The results presented suggest that P10-primed MoDC may be a promising strategy to combat complicated PCM as well as to significantly shorten the lengthy requirements for treatment of patients with this fungal disease.
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Affiliation(s)
- Leandro B R Silva
- USP-LIM53, Laboratory of Medical Mycology, Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil
| | - Cleison L Taira
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Lucas S Dias
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ana C O Souza
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Joshua D Nosanchuk
- Departments of Medicine (Division of Infectious Diseases) and Microbiology and Immunology, Albert Einstein College of Medicine, New York, NY, United States
| | - Luiz R Travassos
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo, Brazil
| | - Carlos P Taborda
- USP-LIM53, Laboratory of Medical Mycology, Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil.,Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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29
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Current and Novel Approaches in Influenza Management. Vaccines (Basel) 2019; 7:vaccines7020053. [PMID: 31216759 PMCID: PMC6630949 DOI: 10.3390/vaccines7020053] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/1970] [Revised: 06/15/2019] [Accepted: 06/17/2019] [Indexed: 12/11/2022] Open
Abstract
Influenza is a disease that poses a significant health burden worldwide. Vaccination is the best way to prevent influenza virus infections. However, conventional vaccines are only effective for a short period of time due to the propensity of influenza viruses to undergo antigenic drift and antigenic shift. The efficacy of these vaccines is uncertain from year-to-year due to potential mismatch between the circulating viruses and vaccine strains, and mutations arising due to egg adaptation. Subsequently, the inability to store these vaccines long-term and vaccine shortages are challenges that need to be overcome. Conventional vaccines also have variable efficacies for certain populations, including the young, old, and immunocompromised. This warrants for diverse efficacious vaccine developmental approaches, involving both active and passive immunization. As opposed to active immunization platforms (requiring the use of whole or portions of pathogens as vaccines), the rapidly developing passive immunization involves administration of either pathogen-specific or broadly acting antibodies against a kind or class of pathogens as a treatment to corresponding acute infection. Several antibodies with broadly acting capacities have been discovered that may serve as means to suppress influenza viral infection and allow the process of natural immunity to engage opsonized pathogens whilst boosting immune system by antibody-dependent mechanisms that bridge the innate and adaptive arms. By that; passive immunotherapeutics approach assumes a robust tool that could aid control of influenza viruses. In this review, we comment on some improvements in influenza management and promising vaccine development platforms with an emphasis on the protective capacity of passive immunotherapeutics especially when coupled with the use of antivirals in the management of influenza infection.
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30
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Noubade R, Majri-Morrison S, Tarbell KV. Beyond cDC1: Emerging Roles of DC Crosstalk in Cancer Immunity. Front Immunol 2019; 10:1014. [PMID: 31143179 PMCID: PMC6521804 DOI: 10.3389/fimmu.2019.01014] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 04/23/2019] [Indexed: 01/03/2023] Open
Abstract
Dendritic cells (DCs) efficiently process and present antigens to T cells, and by integrating environmental signals, link innate and adaptive immunity. DCs also control the balance between tolerance and immunity, and are required for T-cell mediated anti-tumor immunity. One subset of classical DCs, cDC1, are particularly important for eliciting CD8 T cells that can kill tumor cells. cDC1s are superior in antigen cross-presentation, a process of presenting exogenous antigens on MHC class I to activate CD8+ T cells. Tumor-associated cDC1s can transport tumor antigen to the draining lymph node and cross-present tumor antigens, resulting in priming and activation of cytotoxic T cells. Although cross-presenting cDC1s are critical for eliciting anti-tumor T cell responses, the role and importance of other DC subsets in anti-tumor immunity is not as well-characterized. Recent literature in other contexts suggests that critical crosstalk between DC subsets can significantly alter biological outcomes, and these DC interactions likely also contribute significantly to tumor-specific immune responses. Therefore, antigen presentation by cDC1s may be necessary but not sufficient for maximal immune responses against cancer. Here, we discuss recent advances in the understanding of DC subset interactions to maximize anti-tumor immunity, and propose that such interactions should be considered for the development of better DC-targeted immunotherapies.
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Affiliation(s)
- Rajkumar Noubade
- Department of Inflammation and Oncology, Amgen Research, Amgen Inc., South San Francisco, CA, United States
| | - Sonia Majri-Morrison
- Department of Inflammation and Oncology, Amgen Research, Amgen Inc., South San Francisco, CA, United States
| | - Kristin V Tarbell
- Department of Inflammation and Oncology, Amgen Research, Amgen Inc., South San Francisco, CA, United States
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31
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Rahman T, Brown AS, Hartland EL, van Driel IR, Fung KY. Plasmacytoid Dendritic Cells Provide Protection Against Bacterial-Induced Colitis. Front Immunol 2019; 10:608. [PMID: 31024525 PMCID: PMC6465541 DOI: 10.3389/fimmu.2019.00608] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 03/07/2019] [Indexed: 12/19/2022] Open
Abstract
We have examined the influence of depleting plasmacytoid dendritic cells (pDC) in mice on the immune response to the gut pathogen Citrobacter rodentium, an organism that is a model for human attaching effacing pathogens such as enterohaemorraghic E. coli. A significantly higher number of C. rodentium were found in mice depleted of pDC from 7 days after infection and pDC depleted mice showed increased gut pathology and higher levels of mRNA encoding inflammatory cytokines in the colon upon infection. pDC-depletion led to a compromising of the gut mucosal barrier that may have contributed to increased numbers of C. rodentium in systemic organs. pDC-depleted mice infected with C. rodentium suffered substantial weight loss necessitating euthanasia. A number of observations suggested that this was not simply the result of dysregulation of immunity in the colon as pDC-depleted mice infected intravenously with C. rodentium also exhibited exacerbated weight loss, arguing that pDC influence systemic immune responses. Overall, these data indicate that pDC contribute at multiple levels to immunity to C. rodentium including control of bacterial numbers in the colon, maintenance of colon barrier function and regulation of immune responses to disseminated bacteria.
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Affiliation(s)
- Tania Rahman
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.,Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Andrew S Brown
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Elizabeth L Hartland
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Ian R van Driel
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Ka Yee Fung
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
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32
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Vangeti S, Gertow J, Yu M, Liu S, Baharom F, Scholz S, Friberg D, Starkhammar M, Ahlberg A, Smed-Sörensen A. Human Blood and Tonsil Plasmacytoid Dendritic Cells Display Similar Gene Expression Profiles but Exhibit Differential Type I IFN Responses to Influenza A Virus Infection. THE JOURNAL OF IMMUNOLOGY 2019; 202:2069-2081. [PMID: 30760619 DOI: 10.4049/jimmunol.1801191] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 01/25/2019] [Indexed: 12/19/2022]
Abstract
Influenza A virus (IAV) infection constitutes an annual health burden across the globe. Plasmacytoid dendritic cells (PDCs) are central in antiviral defense because of their superior capacity to produce type I IFNs in response to viruses. Dendritic cells (DCs) differ depending on their anatomical location. However, only limited host-pathogen data are available from the initial site of infection in humans. In this study, we investigated how human tonsil PDCs, likely exposed to virus because of their location, responded to IAV infection compared with peripheral blood PDCs. In tonsils, unlike in blood, PDCs are the most frequent DC subset. Both tonsil and blood PDCs expressed several genes necessary for pathogen recognition and immune response, generally in a similar pattern. MxA, a protein that renders cells resistant to IAV infection, was detected in both tonsil and blood PDCs. However, despite steady-state MxA expression and contrary to previous reports, at high IAV concentrations (typically cytopathic to other immune cells), both tonsil and blood PDCs supported IAV infection. IAV exposure resulted in PDC maturation by upregulation of CD86 expression and IFN-α secretion. Interestingly, blood PDCs secreted 10-fold more IFN-α in response to IAV compared with tonsil PDCs. Tonsil PDCs also had a dampened cytokine response to purified TLR ligands compared with blood PDCs. Our findings suggest that tonsil PDCs may be less responsive to IAV than blood PDCs, highlighting the importance of studying immune cells at their proposed site of function.
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Affiliation(s)
- Sindhu Vangeti
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, 171 64 Stockholm, Sweden
| | - Jens Gertow
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, 171 64 Stockholm, Sweden
| | - Meng Yu
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, 171 64 Stockholm, Sweden
| | - Sang Liu
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, 171 64 Stockholm, Sweden
| | - Faezzah Baharom
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, 171 64 Stockholm, Sweden
| | - Saskia Scholz
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, 171 64 Stockholm, Sweden
| | - Danielle Friberg
- Department of Surgical Sciences, Uppsala University, 751 85 Uppsala, Sweden
| | - Magnus Starkhammar
- Capio Ear, Nose and Throat Clinic Globen, 121 77 Johanneshov, Sweden; and
| | - Alexander Ahlberg
- Division of Ear, Nose and Throat Diseases, Department of Clinical Science, Intervention and Technology, Karolinska University Hospital Huddinge, Huddinge, 141 86 Stockholm, Sweden
| | - Anna Smed-Sörensen
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, 171 64 Stockholm, Sweden;
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33
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Dominguez-Molina B, Ferrando-Martinez S, Tarancon-Diez L, Hernandez-Quero J, Genebat M, Vidal F, Muñoz-Fernandez MA, Leal M, Koup R, Ruiz-Mateos E. Immune Correlates of Natural HIV Elite Control and Simultaneous HCV Clearance-Supercontrollers. Front Immunol 2018; 9:2897. [PMID: 30619267 PMCID: PMC6295470 DOI: 10.3389/fimmu.2018.02897] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 11/26/2018] [Indexed: 12/14/2022] Open
Abstract
HIV-elite controllers are a minority group of HIV-infected patients with the ability to maintain undetectable HIV viremia for long time periods without antiretroviral treatment. A small group of HIV-controllers are also able to spontaneously clear the hepatitis C virus (HCV) whom we can refer to as "supercontrollers." There are no studies that explore immune correlates looking for the mechanisms implicated in this extraordinary phenomenon. Herein, we have analyzed HCV- and HIV-specific T-cell responses, as well as T, dendritic and NK cell phenotypes. The higher HCV-specific CD4 T-cell polyfunctionality, together with a low activation and exhaustion T-cell phenotype was found in supercontrollers. In addition, the frequency of CD8 CD161high T-cells was related with HIV- and HCV-specific T-cells polyfunctionality. Interesting features regarding NK and plasmacytoid dendritic cells (pDCs) were found. The study of the supercontroller's immune response, subjects that spontaneously controls both chronic viral infections, could provide further insights into virus-specific responses needed to develop immunotherapeutic strategies in the setting of HIV cure or HCV vaccination.
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Affiliation(s)
- Beatriz Dominguez-Molina
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital, Seville, Spain
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Sara Ferrando-Martinez
- Immunology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Laura Tarancon-Diez
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital, Seville, Spain
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | | | - Miguel Genebat
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Francisco Vidal
- Hospital Universitari Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Mª Angeles Muñoz-Fernandez
- Sección Inmunología, Laboratory InmunoBiología Molecular, Hospital General Universitario “Gregorio Marañón”, Madrid, Spain
- Instituto de Investigación Sanitaria del Gregorio Marañón, Madrid, Spain
| | - Manuel Leal
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
- Servicio de Medicina Interna, Hospital Viamed, Santa Ángela de la Cruz, Seville, Spain
| | - Richard Koup
- Immunology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Ezequiel Ruiz-Mateos
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital, Seville, Spain
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Development, Diversity, and Function of Dendritic Cells in Mouse and Human. Cold Spring Harb Perspect Biol 2018; 10:cshperspect.a028613. [PMID: 28963110 PMCID: PMC6211386 DOI: 10.1101/cshperspect.a028613] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The study of murine dendritic cell (DC) development has been integral to the identification of specialized DC subsets that have unique requirements for their form and function. Advances in the field have also provided a framework for the identification of human DC counterparts, which appear to have conserved mechanisms of development and function. Multiple transcription factors are expressed in unique combinations that direct the development of classical DCs (cDCs), which include two major subsets known as cDC1s and cDC2s, and plasmacytoid DCs (pDCs). pDCs are potent producers of type I interferons and thus these cells are implicated in immune responses that depend on this cytokine. Mouse models deficient in the cDC1 lineage have revealed their importance in directing immune responses to intracellular bacteria, viruses, and cancer through the cross-presentation of cell-associated antigen. Models of transcription factor deficiency have been used to identify subsets of cDC2 that are required for T helper (Th)2 and Th17 responses to certain pathogens; however, no single factor is known to be absolutely required for the development of the complete cDC2 lineage. In this review, we will discuss the current state of knowledge of mouse and human DC development and function and highlight areas in the field that remain unresolved.
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35
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Sepulveda-Toepfer JA, Pichler J, Fink K, Sevo M, Wildburger S, Mudde-Boer LC, Taus C, Mudde GC. TLR9-mediated activation of dendritic cells by CD32 targeting for the generation of highly immunostimulatory vaccines. Hum Vaccin Immunother 2018; 15:179-188. [PMID: 30156957 DOI: 10.1080/21645515.2018.1514223] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The rational for designing dendritic cell (DC)-targeted immunotherapies is their central role in orchestrating immunity. Most studies addressing antigen-targeting to DCs for eliciting T cell responses have employed ex-vivo matured DCs derived from monocytes or myeloid DCs isolated from peripheral blood. More recently, also plasmacytoid DCs (pDCs) emerged as attractive targets that can be readily isolated and activated ex vivo. pDCs are known as key effectors of innate and adaptive immunity due to their exquisite ability to produce large amounts of type-1 interferons upon signaling via TLR7 or TLR9 intracellular receptor for viral RNA or bacterial DNA, respectively. In this study, we describe and characterize the immune modulating and targeting module of a composite human specific vaccine platform for active immunotherapy. This module, called warhead (WH), is composed of a single-chain variable fragment (scFv) and CpG-C type oligonucleotides (ODNs) that are covalently coupled. The scFv mediates specific binding to FcγRII/CD32 on APCs and internalization of the ODNs which stimulate TLR9-expressing B cells and pDCs. Furthermore, the scFv in the WH is extended with a five-time heptad repeat (EVSALEK) alpha helix which allows for a coiled-coil complex formation with any immunogen also extended with another five-time heptad (KVSALKE) repeat. WH elicits fast and robust pDC activation as evidenced by the release of interferon-α, TNF-α and IL-6. The WH thus takes advantage of the key features of human pDCs for immunostimulation and can be a versatile tool for antigen-specific vaccination with a variety of proteins or peptides.
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Affiliation(s)
- J A Sepulveda-Toepfer
- a Department of Research and Development , S-TARget Therapeutics GmbH , Vienna , Austria.,b Department of Research and Development , OncoQR ML GmbH , Vienna , Austria
| | - Johannes Pichler
- b Department of Research and Development , OncoQR ML GmbH , Vienna , Austria
| | - Kathrin Fink
- b Department of Research and Development , OncoQR ML GmbH , Vienna , Austria
| | - Milica Sevo
- a Department of Research and Development , S-TARget Therapeutics GmbH , Vienna , Austria
| | - Sonja Wildburger
- a Department of Research and Development , S-TARget Therapeutics GmbH , Vienna , Austria
| | | | - Christopher Taus
- b Department of Research and Development , OncoQR ML GmbH , Vienna , Austria
| | - Geert Cornelius Mudde
- a Department of Research and Development , S-TARget Therapeutics GmbH , Vienna , Austria.,b Department of Research and Development , OncoQR ML GmbH , Vienna , Austria
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Inselmann S, Wang Y, Saussele S, Fritz L, Schütz C, Huber M, Liebler S, Ernst T, Cai D, Botschek S, Brendel C, Calogero RA, Pavlinic D, Benes V, Liu ET, Neubauer A, Hochhaus A, Burchert A. Development, Function, and Clinical Significance of Plasmacytoid Dendritic Cells in Chronic Myeloid Leukemia. Cancer Res 2018; 78:6223-6234. [PMID: 30166420 DOI: 10.1158/0008-5472.can-18-1477] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 07/13/2018] [Accepted: 08/27/2018] [Indexed: 11/16/2022]
Abstract
Plasmacytoid dendritic cells (pDC) are the main producers of a key T-cell-stimulatory cytokine, IFNα, and critical regulators of antiviral immunity. Chronic myeloid leukemia (CML) is caused by BCR-ABL, which is an oncogenic tyrosine kinase that can be effectively inhibited with ABL-selective tyrosine kinase inhibitors (TKI). BCR-ABL-induced suppression of the transcription factor interferon regulatory factor 8 was previously proposed to block pDC development and compromise immune surveillance in CML. Here, we demonstrate that pDCs in newly diagnosed CML (CML-pDC) develop quantitatively normal and are frequently positive for the costimulatory antigen CD86. They originate from low-level BCR-ABL-expressing precursors. CML-pDCs also retain their competence to maturate and to secrete IFN. RNA sequencing reveals a strong inflammatory gene expression signature in CML-pDCs. Patients with high CML-pDC counts at diagnosis achieve inferior rates of deep molecular remission (MR) under nilotinib, unless nilotinib therapy is combined with IFN, which strongly suppresses circulating pDC counts. Although most pDCs are BCR-ABL-negative in MR, a substantial proportion of BCR-ABL + CML-pDCs persists under TKI treatment. This could be of relevance, because CML-pDCs elicit CD8+ T cells, which protect wild-type mice from CML. Together, pDCs are identified as novel functional DC population in CML, regulating antileukemic immunity and treatment outcome in CML.Significance: CML-pDC originates from low-level BCR-ABL expressing stem cells into a functional immunogenic DC-population regulating antileukemic immunity and treatment outcome in CML. Cancer Res; 78(21); 6223-34. ©2018 AACR.
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Affiliation(s)
- Sabrina Inselmann
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | - Ying Wang
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | - Susanne Saussele
- Department of Hematology/Oncology, University Hospital Mannheim, University Heidelberg, Mannheim, Germany
| | - Lea Fritz
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | - Christin Schütz
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | - Magdalena Huber
- Institute for Medical Microbiology and Hospital Hygiene, University of Marburg, Marburg, Germany
| | - Simone Liebler
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | - Thomas Ernst
- Klinik für Innere Medizin II, Hämatologie und Internistische Onkologie, Jena, Germany
| | - Dali Cai
- Department of Hematology, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Sarah Botschek
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | - Cornelia Brendel
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | | | - Dinko Pavlinic
- Genomics Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Vladimir Benes
- Genomics Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | | | - Andreas Neubauer
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany
| | - Andreas Hochhaus
- Klinik für Innere Medizin II, Hämatologie und Internistische Onkologie, Jena, Germany
| | - Andreas Burchert
- Department of Hematology, Oncology and Immunology, University Hospital Giessen and Marburg, Campus Marburg, Philipps University Marburg, Marburg, Germany.
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37
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Darisipudi MN, Nordengrün M, Bröker BM, Péton V. Messing with the Sentinels-The Interaction of Staphylococcus aureus with Dendritic Cells. Microorganisms 2018; 6:microorganisms6030087. [PMID: 30111706 PMCID: PMC6163568 DOI: 10.3390/microorganisms6030087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/12/2018] [Accepted: 08/14/2018] [Indexed: 12/14/2022] Open
Abstract
Staphylococcus aureus (S. aureus) is a dangerous pathogen as well as a frequent colonizer, threatening human health worldwide. Protection against S. aureus infection is challenging, as the bacteria have sophisticated strategies to escape the host immune response. To maintain equilibrium with S. aureus, both innate and adaptive immune effector mechanisms are required. Dendritic cells (DCs) are critical players at the interface between the two arms of the immune system, indispensable for inducing specific T cell responses. In this review, we highlight the importance of DCs in mounting innate as well as adaptive immune responses against S. aureus with emphasis on their role in S. aureus-induced respiratory diseases. We also review what is known about mechanisms that S. aureus has adopted to evade DCs or manipulate these cells to its advantage.
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Affiliation(s)
- Murthy N Darisipudi
- Department of Immunology, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße DZ7, D-17475 Greifswald, Germany.
| | - Maria Nordengrün
- Department of Immunology, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße DZ7, D-17475 Greifswald, Germany.
| | - Barbara M Bröker
- Department of Immunology, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße DZ7, D-17475 Greifswald, Germany.
| | - Vincent Péton
- Department of Immunology, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße DZ7, D-17475 Greifswald, Germany.
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38
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Vangeti S, Yu M, Smed-Sörensen A. Respiratory Mononuclear Phagocytes in Human Influenza A Virus Infection: Their Role in Immune Protection and As Targets of the Virus. Front Immunol 2018; 9:1521. [PMID: 30018617 PMCID: PMC6037688 DOI: 10.3389/fimmu.2018.01521] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/19/2018] [Indexed: 12/12/2022] Open
Abstract
Emerging viruses have become increasingly important with recurrent epidemics. Influenza A virus (IAV), a respiratory virus displaying continuous re-emergence, contributes significantly to global morbidity and mortality, especially in young children, immunocompromised, and elderly people. IAV infection is typically confined to the airways and the virus replicates in respiratory epithelial cells but can also infect resident immune cells. Clearance of infection requires virus-specific adaptive immune responses that depend on early and efficient innate immune responses against IAV. Mononuclear phagocytes (MNPs), comprising monocytes, dendritic cells, and macrophages, have common but also unique features. In addition to being professional antigen-presenting cells, MNPs mediate leukocyte recruitment, sense and phagocytose pathogens, regulate inflammation, and shape immune responses. The immune protection mediated by MNPs can be compromised during IAV infection when the cells are also targeted by the virus, leading to impaired cytokine responses and altered interactions with other immune cells. Furthermore, it is becoming increasingly clear that immune cells differ depending on their anatomical location and that it is important to study them where they are expected to exert their function. Defining tissue-resident MNP distribution, phenotype, and function during acute and convalescent human IAV infection can offer valuable insights into understanding how MNPs maintain the fine balance required to protect against infections that the cells are themselves susceptible to. In this review, we delineate the role of MNPs in the human respiratory tract during IAV infection both in mediating immune protection and as targets of the virus.
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Affiliation(s)
- Sindhu Vangeti
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Meng Yu
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Anna Smed-Sörensen
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
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Buschow SI, Biesta PJ, Groothuismink ZMA, Erler NS, Vanwolleghem T, Ho E, Najera I, Ait-Goughoulte M, de Knegt RJ, Boonstra A, Woltman AM. TLR7 polymorphism, sex and chronic HBV infection influence plasmacytoid DC maturation by TLR7 ligands. Antiviral Res 2018; 157:27-37. [PMID: 29964062 DOI: 10.1016/j.antiviral.2018.06.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 02/06/2023]
Abstract
TLR7 agonists are of high interest for the treatment of cancer, auto-immunity and chronic viral infections. They are known to activate plasmacytoid dendritic cells (pDCs) to produce high amounts of Type I Interferon (IFN) and to facilitate T and B cell responses, the latter with the help of maturation markers such as CD40, CD80 and CD86. The TLR7 single nucleotide polymorphism (SNP) rs179008 (GLn11Leu), sex and chronic viral infection have all been reported to influence pDC IFN production. It is unknown, however, whether these factors also influence pDC phenotypic maturation and thereby IFN-independent pDC functions. Furthermore, it is unclear whether SNP rs179008 influences HBV susceptibility and/or clearance. Here we investigated whether the SNP rs179008, sex and HBV infection affected phenotypic maturation of pDCs from 38 healthy individuals and 28 chronic HBV patients. In addition, we assessed SNP prevalence in a large cohort of healthy individuals (n = 231) and chronic HBV patients (n = 1054). Consistent with previous reports, the rs179008 variant allele was largely absent in Asians and more prevalent in Caucasians. Among Caucasians, the SNP was equally prevalent in healthy and chronically infected males. The SNP was, however, significantly more prevalent in healthy females than in those with chronic HBV infection (42 versus 28%), suggesting that in females it may offer protection from chronic infection. Ex vivo experiments demonstrated that induction of the co-stimulatory molecules CD40 and CD86 by TLR7 ligands, but not TLR9 ligands, was augmented in pDCs from healthy SNP-carrying females. Furthermore, CD80 and CD86 upregulation was more pronounced in females independent of the SNP. Lastly, our data suggested that chronic HBV infection impairs pDC maturation. These findings provide insight into factors determining TLR7 responses, which is important for further clinical development of TLR7-based therapies.
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Affiliation(s)
- Sonja I Buschow
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
| | - Paula J Biesta
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
| | - Zwier M A Groothuismink
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
| | - Nicole S Erler
- Department of Biostatistics, Erasmus MC University Medical Center Rotterdam, The Netherlands
| | - Thomas Vanwolleghem
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands; Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp and Department of Gastroenterology and Hepatology, Antwerp University Hospital, Antwerp, Belgium
| | - Erwin Ho
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp and Department of Gastroenterology and Hepatology, Antwerp University Hospital, Antwerp, Belgium
| | - Isabel Najera
- Roche Pharma Research & Early Development (pRED), Roche Innovation Center Basel, Switzerland
| | - Malika Ait-Goughoulte
- Roche Pharma Research & Early Development (pRED), Roche Innovation Center Basel, Switzerland
| | - Robert J de Knegt
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
| | - Andre Boonstra
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
| | - Andrea M Woltman
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands.
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40
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Chartrand K, Lebel MÈ, Tarrab E, Savard P, Leclerc D, Lamarre A. Efficacy of a Virus-Like Nanoparticle As Treatment for a Chronic Viral Infection Is Hindered by IRAK1 Regulation and Antibody Interference. Front Immunol 2018; 8:1885. [PMID: 29354118 PMCID: PMC5758502 DOI: 10.3389/fimmu.2017.01885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 12/11/2017] [Indexed: 01/01/2023] Open
Abstract
Although vaccination has been an effective way of preventing infections ever since the eighteenth century, the generation of therapeutic vaccines and immunotherapies is still a work in progress. A number of challenges impede the development of these therapeutic approaches such as safety issues related to the administration of whole pathogens whether attenuated or inactivated. One safe alternative to classical vaccination methods gaining recognition is the use of nanoparticles, whether synthetic or naturally derived. We have recently demonstrated that the papaya mosaic virus (PapMV)-like nanoparticle can be used as a prophylactic vaccine against various viral and bacterial infections through the induction of protective humoral and cellular immune responses. Moreover, PapMV is also very efficient when used as an immune adjuvant in an immunotherapeutic setting at slowing down the growth of aggressive mouse melanoma tumors in a type I interferon (IFN-I)-dependent manner. In the present study, we were interested in exploiting the capacity of PapMV of inducing robust IFN-I production as treatment for the chronic viral infection model lymphocytic choriomeningitis virus (LCMV) clone 13 (Cl13). Treatment of LCMV Cl13-infected mice with two systemic administrations of PapMV was ineffective, as shown by the lack of changes in viral titers and immune response to LCMV following treatment. Moreover, IFN-α production following PapMV administration was almost completely abolished in LCMV-infected mice. To better isolate the mechanisms at play, we determined the influence of a pretreatment with PapMV on secondary PapMV administration, therefore eliminating potential variables emanating from the infection. Pretreatment with PapMV led to the same outcome as an LCMV infection in that IFN-α production following secondary PapMV immunization was abrogated for up to 50 days while immune activation was also dramatically impaired. We showed that two distinct and overlapping mechanisms were responsible for this outcome. While short-term inhibition was partially the result of interleukin-1 receptor-associated kinase 1 degradation, a crucial component of the toll-like receptor 7 signaling pathway, long-term inhibition was mainly due to interference by PapMV-specific antibodies. Thus, we identified a possible pitfall in the use of virus-like particles for the systemic treatment of chronic viral infections and discuss mitigating alternatives to circumvent these potential problems.
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Affiliation(s)
- Karine Chartrand
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, Quebec, Canada
| | - Marie-Ève Lebel
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, Quebec, Canada
| | - Esther Tarrab
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, Quebec, Canada
| | - Pierre Savard
- Infectious Disease Research Center, Department of Microbiology, Infectiology and Immunology, Laval University, Quebec City, Quebec, Canada
| | - Denis Leclerc
- Infectious Disease Research Center, Department of Microbiology, Infectiology and Immunology, Laval University, Quebec City, Quebec, Canada
| | - Alain Lamarre
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, Quebec, Canada
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Human plasmacytoid dendritic cells acquire phagocytic capacity by TLR9 ligation in the presence of soluble factors produced by renal epithelial cells. Kidney Int 2017; 93:355-364. [PMID: 29061332 DOI: 10.1016/j.kint.2017.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 07/10/2017] [Accepted: 08/03/2017] [Indexed: 01/07/2023]
Abstract
Plasmacytoid dendritic cells (pDCs) are antigen presenting cells specialized in viral recognition through Toll-like receptor (TLR)7 and TLR9, and produce vast amounts of interferon alpha upon ligation of these TLRs. We had previously demonstrated a strong influx of pDCs in the tubulointerstitium of renal biopsies at the time of acute rejection. However, the role of human pDCs in mediating acute or chronic allograft rejection remains elusive. pDCs are thought to have a limited capacity to ingest apoptotic cells, critical for inducing CD4+ T cell activation via indirect antigen presentation and subsequent activation of antibody producing B cells. Here we tested whether the function of pDCs is affected by their presence within the graft. Maturation and interferon alpha production by pDCs was enhanced when cells were activated in the presence of viable HK2 renal epithelial cells. Importantly, soluble factors produced by cytomegalovirus-infected (primary) epithelial or endothelial cells enhanced pDC activation and induced their capacity to phagocytose apoptotic cells. Phagocytosis was not induced by free virus or soluble factors from non-infected cells. Activated pDCs showed an enhanced CD4+ and CD8+ T cell allostimulatory capacity as well as a potent indirect alloantigen presentation. Granulocyte Macrophage-Colony Stimulating Factor is one of the soluble factors produced by renal epithelial cells that, combined with TLR9 ligation, induced this functional capacity. Thus, pDCs present in the rejecting allograft can contribute to alloimmunity and potentially act as important orchestrators in the manifestation of acute and chronic rejection.
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42
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Kuo CH, Yang SN, Tsai YG, Hsieh CC, Liao WT, Chen LC, Lee MS, Kuo HF, Lin CH, Hung CH. Long-acting β2-adrenoreceptor agonists suppress type 1 interferon expression in human plasmacytoid dendritic cells via epigenetic regulation. Pulm Pharmacol Ther 2017; 48:37-45. [PMID: 28987803 DOI: 10.1016/j.pupt.2017.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 10/01/2017] [Accepted: 10/03/2017] [Indexed: 01/01/2023]
Abstract
The combination of inhaled long-acting β2-adrenoreceptor (LABA) and inhaled glucocorticoid (ICS) is a major therapy for asthma. However, the increased risk of infection is still a concern. Plasmacytoid dendritic cells (pDCs) are the predominant cells producing type 1 interferon (IFN) against infection. The effect of LABA/ICS on type 1 IFN expression in human pDCs is unknown. Circulating pDCs were isolated from healthy human subjects and were pretreated with glucocorticoid (GCS), LABA or a cAMP analog, and were stimulated with Toll-like receptor (TLR) agonist CpG (TLR9) or imiquimod (TLR7) in the presence of IL-3. The expression of type 1 IFN (IFN-α/β) were measured by ELISA. The mechanisms were investigated using receptor antagonists, pathway inhibitors, Western blotting and chromatin immunoprecipitation. GCS suppressed TLR-induced IFN-α expression, and LABA enhanced the suppressive effect. LABA alone also suppressed TLR-induced IFN-α/β expression, and the effect was reversed by the β2-adrenoreceptor antagonist ICI118551. Dibutyryl-cAMP, a cAMP analog, conferred a similar suppressive effect, and the effect was abrogated by the exchange protein directly activated by cAMP (Epac) inhibitor HJC0197 or intracellular free Ca2+ chelator BAPTA-AM. Formoterol suppressed TLR-induced phosphorylation of mitogen-activated protein kinase (MAPK)-p38/ERK. Formoterol suppressed interferon regulatory factor (IRF)-3/IRF-7 expression. Formoterol suppressed CpG-induced translocation of H3K4 specific methyltransferase WDR5 and suppressed H3K4 trimethylation in the IFNA and IFNB gene promoter region. LABA suppressed TLR7/9-induced type 1 IFNs production, at least partly, via the β2-adrenoreceptor-cAMP-Epac-Ca2+, IRF-3/IRF-7, the MAPK-p38/ERK pathway, and epigenetic regulation by suppressing histone H3K4 trimethylation through inhibiting the translocation of WDR5 from cytoplasm to nucleus. LABA may interfere with anti-viral immunity.
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Affiliation(s)
- Chang-Hung Kuo
- Ta-Kuo Clinic, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - San-Nan Yang
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan; Department of Pediatrics, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Yi-Giien Tsai
- Department of Pediatrics, Changhua Christian Children's Hospital, Changhua, Taiwan; School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chong-Chao Hsieh
- Division of Cardiovascular Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wei-Ting Liao
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Li-Chen Chen
- The Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Min-Sheng Lee
- Department of Pediatrics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsuan-Fu Kuo
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Ching-Hsiung Lin
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan; Division of Chest Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Chih-Hsing Hung
- School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan; Research Center of Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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43
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Mathan TSM, Textor J, Sköld AE, Reinieren-Beeren I, van Oorschot T, Brüning M, Figdor CG, Buschow SI, Bakdash G, de Vries IJM. Harnessing RNA sequencing for global, unbiased evaluation of two new adjuvants for dendritic-cell immunotherapy. Oncotarget 2017; 8:19879-19893. [PMID: 28186996 PMCID: PMC5386730 DOI: 10.18632/oncotarget.15190] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 12/05/2016] [Indexed: 01/05/2023] Open
Abstract
Effective stimulation of immune cells is crucial for the success of cancer immunotherapies. Current approaches to evaluate the efficiency of stimuli are mainly defined by known flow cytometry-based cell activation or cell maturation markers. This method however does not give a complete overview of the achieved activation state and may leave important side effects unnoticed. Here, we used an unbiased RNA sequencing (RNA-seq)-based approach to compare the capacity of four clinical-grade dendritic cell (DC) activation stimuli used to prepare DC-vaccines composed of various types of DC subsets; the already clinically applied GM-CSF and Frühsommer meningoencephalitis (FSME) prophylactic vaccine and the novel clinical grade adjuvants protamine-RNA complexes (pRNA) and CpG-P. We found that GM-CSF and pRNA had similar effects on their target cells, whereas pRNA and CpG-P induced stronger type I interferon (IFN) expression than FSME. In general, the pathways most affected by all stimuli were related to immune activity and cell migration. GM-CSF stimulation, however, also induced a significant increase of genes related to nonsense-mediated decay, indicating a possible deleterious effect of this stimulus. Taken together, the two novel stimuli appear to be promising alternatives. Our study demonstrates how RNA-seq based investigation of changes in a large number of genes and gene groups can be exploited for fast and unbiased, global evaluation of clinical-grade stimuli, as opposed to the general limited evaluation of a pre-specified set of genes, by which one might miss important biological effects that are detrimental for vaccine efficacy.
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Affiliation(s)
- Till S M Mathan
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Johannes Textor
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Annette E Sköld
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Oncology and Pathology, Karolinska University Hospital Solna, Karolinska Institute, Stockholm, Sweden
| | - Inge Reinieren-Beeren
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Tom van Oorschot
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | | | - Carl G Figdor
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Sonja I Buschow
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, The Netherlands
| | - Ghaith Bakdash
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - I Jolanda M de Vries
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Medical Oncology, Radboud University Medical Centre, Nijmegen, The Netherlands
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44
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Finotti G, Tamassia N, Cassatella MA. Interferon-λs and Plasmacytoid Dendritic Cells: A Close Relationship. Front Immunol 2017; 8:1015. [PMID: 28878776 PMCID: PMC5572322 DOI: 10.3389/fimmu.2017.01015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/08/2017] [Indexed: 12/21/2022] Open
Abstract
Interferon lambdas (IFNλs) are recently discovered cytokines acting not only at the first line of defense against viral infections but also at the mucosal barriers. In fact, a peculiar feature of the IFNλ system is the restricted expression of the functional IFNλR, which is known to be limited to epithelial cells and discrete leukocyte subsets, including the plasmacytoid dendritic cells (pDCs). In the latter case, current data, discussed in this minireview, indicate that IFNλs positively regulate various pDC functions, including pDC expression of interferon-dependent gene (ISG) mRNAs, production of cytokines, survival, and phenotype. Although the knowledge of the effects on pDCs by IFNλs is still incomplete, we speculate that the peculiar pDC responsiveness to IFNλs provide unique advantages for these innate immune cells, not only for viral infections but also during autoimmune disorders and/or tumors, in which pDC involvement and activation variably contribute to their pathogenesis.
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Affiliation(s)
- Giulia Finotti
- Department of Medicine, Section of General Pathology, University of Verona, Verona, Italy
| | - Nicola Tamassia
- Department of Medicine, Section of General Pathology, University of Verona, Verona, Italy
| | - Marco A Cassatella
- Department of Medicine, Section of General Pathology, University of Verona, Verona, Italy
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45
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Silvin A, Yu CI, Lahaye X, Imperatore F, Brault JB, Cardinaud S, Becker C, Kwan WH, Conrad C, Maurin M, Goudot C, Marques-Ladeira S, Wang Y, Pascual V, Anguiano E, Albrecht RA, Iannacone M, García-Sastre A, Goud B, Dalod M, Moris A, Merad M, Palucka AK, Manel N. Constitutive resistance to viral infection in human CD141 + dendritic cells. Sci Immunol 2017; 2:2/13/eaai8071. [PMID: 28783704 DOI: 10.1126/sciimmunol.aai8071] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 03/09/2017] [Accepted: 05/17/2017] [Indexed: 12/24/2022]
Abstract
Dendritic cells (DCs) are critical for the launching of protective T cell immunity in response to viral infection. Viruses can directly infect DCs, thereby compromising their viability and suppressing their ability to activate immune responses. How DC function is maintained in light of this paradox is not understood. By analyzing the susceptibility of primary human DC subsets to viral infections, we report that CD141+ DCs have an innate resistance to infection by a broad range of enveloped viruses, including HIV and influenza virus. In contrast, CD1c+ DCs are susceptible to infection, which enables viral antigen production but impairs their immune functions and survival. The ability of CD141+ DCs to resist infection is conferred by RAB15, a vesicle-trafficking protein constitutively expressed in this DC subset. We show that CD141+ DCs rely on viral antigens produced in bystander cells to launch cross-presentation-driven T cell responses. By dissociating viral infection from antigen presentation, this mechanism protects the functional capacity of DCs to launch adaptive immunity against viral infection.
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Affiliation(s)
- Aymeric Silvin
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Chun I Yu
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA.,The Jackson Laboratory for Genomic Medicine, Farmington, CT 06032, USA.,The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Xavier Lahaye
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Francesco Imperatore
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille University, UM2, INSERM U1104, CNRS UMR7280, France
| | - Jean-Baptiste Brault
- Institut Curie, PSL Research University, CNRS, UMR144, Molecular Mechanisms of Intracellular Transport, 75005 Paris, France
| | - Sylvain Cardinaud
- Centre d'Immunologie et des Maladies Infectieuses-Paris, Pierre and Marie Curie University UMRS C7, INSERM U1135, CNRS ERL 8255, Paris, France.,INSERM U955, IMRB Equipe-16, Vaccine Research Institute (VRI), F-94010, Creteil, France
| | - Christian Becker
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine; and Immunology Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Wing-Hong Kwan
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Cécile Conrad
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Mathieu Maurin
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Christel Goudot
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Santy Marques-Ladeira
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Yuanyuan Wang
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA
| | | | | | - Randy A Albrecht
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Matteo Iannacone
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Bruno Goud
- Institut Curie, PSL Research University, CNRS, UMR144, Molecular Mechanisms of Intracellular Transport, 75005 Paris, France
| | - Marc Dalod
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille University, UM2, INSERM U1104, CNRS UMR7280, France
| | - Arnaud Moris
- Centre d'Immunologie et des Maladies Infectieuses-Paris, Pierre and Marie Curie University UMRS C7, INSERM U1135, CNRS ERL 8255, Paris, France
| | - Miriam Merad
- Precision Immunology Institute, Human Immune Monitoring Center, Tisch Cancer institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - A Karolina Palucka
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA. .,The Jackson Laboratory for Genomic Medicine, Farmington, CT 06032, USA.,The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Nicolas Manel
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France.
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46
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Loughland JR, Minigo G, Sarovich DS, Field M, Tipping PE, Montes de Oca M, Piera KA, Amante FH, Barber BE, Grigg MJ, William T, Good MF, Doolan DL, Engwerda CR, Anstey NM, McCarthy JS, Woodberry T. Plasmacytoid dendritic cells appear inactive during sub-microscopic Plasmodium falciparum blood-stage infection, yet retain their ability to respond to TLR stimulation. Sci Rep 2017; 7:2596. [PMID: 28572564 PMCID: PMC5453946 DOI: 10.1038/s41598-017-02096-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/05/2017] [Indexed: 12/13/2022] Open
Abstract
Plasmacytoid dendritic cells (pDC) are activators of innate and adaptive immune responses that express HLA-DR, toll-like receptor (TLR) 7, TLR9 and produce type I interferons. The role of human pDC in malaria remains poorly characterised. pDC activation and cytokine production were assessed in 59 malaria-naive volunteers during experimental infection with 150 or 1,800 P. falciparum-parasitized red blood cells. Using RNA sequencing, longitudinal changes in pDC gene expression were examined in five adults before and at peak-infection. pDC responsiveness to TLR7 and TLR9 stimulation was assessed in-vitro. Circulating pDC remained transcriptionally stable with gene expression altered for 8 genes (FDR < 0.07). There was no upregulation of co-stimulatory molecules CD86, CD80, CD40, and reduced surface expression of HLA-DR and CD123 (IL-3R-α). pDC loss from the circulation was associated with active caspase-3, suggesting pDC apoptosis during primary infection. pDC remained responsive to TLR stimulation, producing IFN-α and upregulating HLA-DR, CD86, CD123 at peak-infection. In clinical malaria, pDC retained HLA-DR but reduced CD123 expression compared to convalescence. These data demonstrate pDC retain function during a first blood-stage P. falciparum exposure despite sub-microscopic parasitaemia downregulating HLA-DR. The lack of evident pDC activation in both early infection and malaria suggests little response of circulating pDC to infection.
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Affiliation(s)
- Jessica R Loughland
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.
| | - Gabriela Minigo
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia
| | - Derek S Sarovich
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Centre for Animal Health Innovation, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - Matt Field
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Peta E Tipping
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Royal Darwin Hospital, Darwin, Australia
| | | | - Kim A Piera
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia
| | - Fiona H Amante
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Bridget E Barber
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Infectious Diseases Unit, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia
| | - Matthew J Grigg
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Infectious Diseases Unit, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia
| | - Timothy William
- Infectious Diseases Unit, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia.,Sabah Department of Health, Kota Kinabalu, Sabah, Malaysia
| | | | - Denise L Doolan
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia.,QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | | | - Nicholas M Anstey
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Royal Darwin Hospital, Darwin, Australia
| | | | - Tonia Woodberry
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia
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47
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See P, Dutertre CA, Chen J, Günther P, McGovern N, Irac SE, Gunawan M, Beyer M, Händler K, Duan K, Sumatoh HRB, Ruffin N, Jouve M, Gea-Mallorquí E, Hennekam RCM, Lim T, Yip CC, Wen M, Malleret B, Low I, Shadan NB, Fen CFS, Tay A, Lum J, Zolezzi F, Larbi A, Poidinger M, Chan JKY, Chen Q, Rénia L, Haniffa M, Benaroch P, Schlitzer A, Schultze JL, Newell EW, Ginhoux F. Mapping the human DC lineage through the integration of high-dimensional techniques. Science 2017; 356:science.aag3009. [PMID: 28473638 DOI: 10.1126/science.aag3009] [Citation(s) in RCA: 382] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 04/25/2017] [Indexed: 12/16/2022]
Abstract
Dendritic cells (DC) are professional antigen-presenting cells that orchestrate immune responses. The human DC population comprises two main functionally specialized lineages, whose origins and differentiation pathways remain incompletely defined. Here, we combine two high-dimensional technologies-single-cell messenger RNA sequencing (scmRNAseq) and cytometry by time-of-flight (CyTOF)-to identify human blood CD123+CD33+CD45RA+ DC precursors (pre-DC). Pre-DC share surface markers with plasmacytoid DC (pDC) but have distinct functional properties that were previously attributed to pDC. Tracing the differentiation of DC from the bone marrow to the peripheral blood revealed that the pre-DC compartment contains distinct lineage-committed subpopulations, including one early uncommitted CD123high pre-DC subset and two CD45RA+CD123low lineage-committed subsets exhibiting functional differences. The discovery of multiple committed pre-DC populations opens promising new avenues for the therapeutic exploitation of DC subset-specific targeting.
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Affiliation(s)
- Peter See
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Charles-Antoine Dutertre
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore.,Program in Emerging Infectious Disease, Duke-NUS Medical School, 8 College Road, 169857 Singapore
| | - Jinmiao Chen
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Patrick Günther
- Genomics and Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, 32115 Bonn, Germany
| | - Naomi McGovern
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Sergio Erdal Irac
- Program in Emerging Infectious Disease, Duke-NUS Medical School, 8 College Road, 169857 Singapore
| | - Merry Gunawan
- Institute of Cellular Medicine, Newcastle University, Newcastle, UK
| | - Marc Beyer
- Genomics and Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, 32115 Bonn, Germany.,Platform for Single Cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn, 53175 Bonn, Germany
| | - Kristian Händler
- Genomics and Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, 32115 Bonn, Germany
| | - Kaibo Duan
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Hermi Rizal Bin Sumatoh
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Nicolas Ruffin
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, INSERM U 932, F-75005, Paris, France
| | - Mabel Jouve
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, INSERM U 932, F-75005, Paris, France
| | - Ester Gea-Mallorquí
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, INSERM U 932, F-75005, Paris, France
| | - Raoul C M Hennekam
- Department of Pediatrics, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - Tony Lim
- Department of Anatomical Pathology, Singapore General Hospital, Singapore
| | - Chan Chung Yip
- Department of Health Promotion Board (HPB) and Transplant Surgery, Singapore General Hospital, Singapore
| | - Ming Wen
- Program in Emerging Infectious Disease, Duke-NUS Medical School, 8 College Road, 169857 Singapore
| | - Benoit Malleret
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore.,Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ivy Low
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Nurhidaya Binte Shadan
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Charlene Foong Shu Fen
- Singapore Health Services Flow Cytometry Core Platform, 20 College Road, The Academia, Discovery Tower Level 10, Singapore 169856, Singapore
| | - Alicia Tay
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Josephine Lum
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Francesca Zolezzi
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Anis Larbi
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Michael Poidinger
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Jerry K Y Chan
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore.,Department of Reproductive Medicine, Division of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore.,Cancer and Stem Cell Biology Program, Duke-NUS Graduate Medical School, Singapore.,Experimental Fetal Medicine Group, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Qingfeng Chen
- Humanized Mouse Unit, Institute of Molecular and Cell Biology (IMCB), A*STAR, Singapore
| | - Laurent Rénia
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Muzlifah Haniffa
- Institute of Cellular Medicine, Newcastle University, Newcastle, UK
| | - Philippe Benaroch
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, INSERM U 932, F-75005, Paris, France
| | - Andreas Schlitzer
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore.,Myeloid Cell Biology, Life and Medical Sciences (LIMES) Institute, University of Bonn, 53115 Bonn, Germany
| | - Joachim L Schultze
- Genomics and Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, 32115 Bonn, Germany.,Platform for Single Cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn, 53175 Bonn, Germany
| | - Evan W Newell
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore.
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48
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A distinct subset of plasmacytoid dendritic cells induces activation and differentiation of B and T lymphocytes. Proc Natl Acad Sci U S A 2017; 114:1988-1993. [PMID: 28167780 DOI: 10.1073/pnas.1610630114] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are known mainly for their secretion of type I IFN upon viral encounter. We describe a CD2hiCD5+CD81+ pDC subset, distinguished by prominent dendrites and a mature phenotype, in human blood, bone marrow, and tonsil, which can be generated from CD34+ progenitors. These CD2hiCD5+CD81+ cells express classical pDC markers, as well as the toll-like receptors that enable conventional pDCs to respond to viral infection. However, their gene expression profile is distinct, and they produce little or no type I IFN upon stimulation with CpG oligonucleotides, likely due to their diminished expression of IFN regulatory factor 7. A similar population of CD5+CD81+ pDCs is present in mice and also does not produce type I IFN after CpG stimulation. In contrast to conventional CD5-CD81- pDCs, human CD5+CD81+ pDCs are potent stimulators of B-cell activation and antibody production and strong inducers of T-cell proliferation and Treg formation. These findings reveal the presence of a discrete pDC population that does not produce type I IFN and yet mediates important immune functions previously attributed to all pDCs.
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Mossu A, Daoui A, Bonnefoy F, Aubergeon L, Saas P, Perruche S. Plasmacytoid Dendritic Cells Die by the CD8 T Cell-Dependent Perforin Pathway during Acute Nonviral Inflammation. THE JOURNAL OF IMMUNOLOGY 2016; 197:1672-82. [PMID: 27448589 DOI: 10.4049/jimmunol.1501875] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 06/23/2016] [Indexed: 01/01/2023]
Abstract
Regulation of the inflammatory response involves the control of dendritic cell survival. To our knowledge, nothing is known about the survival of plasmacytoid dendritic cells (pDC) in such situation. pDC are specialized in type I IFN (IFN-I) secretion to control viral infections, and IFN-I also negatively regulate pDC survival during the course of viral infections. In this study, we asked about pDC behavior in the setting of virus-free inflammation. We report that pDC survival was profoundly reduced during different nonviral inflammatory situations in the mouse, through a mechanism independent of IFN-I and TLR signaling. Indeed, we demonstrated that during inflammation, CD8(+) T cells induced pDC apoptosis through the perforin pathway. The data suggest, therefore, that pDC have to be turned down during ongoing acute inflammation to not initiate autoimmunity. Manipulating CD8(+) T cell response may therefore represent a new therapeutic opportunity for the treatment of pDC-associated autoimmune diseases, such as lupus or psoriasis.
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Affiliation(s)
- Adrien Mossu
- INSERM, UMR1098, F-25000 Besançon, France; Université Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; and LabEx LipSTIC, ANR-11-LABX-0021, FHU INCREASE, F-25000 Besançon, France
| | - Anna Daoui
- INSERM, UMR1098, F-25000 Besançon, France; Université Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; and LabEx LipSTIC, ANR-11-LABX-0021, FHU INCREASE, F-25000 Besançon, France
| | - Francis Bonnefoy
- INSERM, UMR1098, F-25000 Besançon, France; Université Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; and LabEx LipSTIC, ANR-11-LABX-0021, FHU INCREASE, F-25000 Besançon, France
| | - Lucie Aubergeon
- INSERM, UMR1098, F-25000 Besançon, France; Université Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; and LabEx LipSTIC, ANR-11-LABX-0021, FHU INCREASE, F-25000 Besançon, France
| | - Philippe Saas
- INSERM, UMR1098, F-25000 Besançon, France; Université Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; and LabEx LipSTIC, ANR-11-LABX-0021, FHU INCREASE, F-25000 Besançon, France
| | - Sylvain Perruche
- INSERM, UMR1098, F-25000 Besançon, France; Université Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, F-25000 Besançon, France; and LabEx LipSTIC, ANR-11-LABX-0021, FHU INCREASE, F-25000 Besançon, France
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50
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Kennedy RB, Simon WL, Gibson MJ, Goergen KM, Grill DE, Oberg AL, Poland GA. The composition of immune cells serves as a predictor of adaptive immunity in a cohort of 50- to 74-year-old adults. Immunology 2016; 148:266-75. [PMID: 27188667 DOI: 10.1111/imm.12599] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/15/2016] [Accepted: 02/11/2016] [Indexed: 01/22/2023] Open
Abstract
Influenza causes significant morbidity and mortality annually. Although vaccination offers a considerable amount of protection, it is far from perfect, especially in aging populations. This is due to age-related defects in immune function, a process called immunosenescence. To date, there are no assays or methods to predict or explain variations in an individual's level of response to influenza vaccination. In this study, we measured levels of several immune cell subsets at baseline (Day 0) and at Days 3 and 28 post-vaccination using flow cytometry. Statistical modelling was performed to assess correlations between levels of cell subsets and Day 28 immune responses - haemagglutination inhibition (HAI) assay, virus neutralizing antibody (VNA) assay, and memory B cell ELISPOT. Changes in several groups of cell types from Day 0 to Day 28 and Day 3 to Day 28 were found to be significantly associated with immune response. Baseline levels of several immune cell subsets, including B cells and regulatory T cells, were able to partially explain variation in memory B-cell ELISPOT results. Increased expression of HLA-DR on plasmacytoid dendritic cells after vaccination was correlated with increased HAI and VNA responses. Our data suggest that the expression of activation markers (HLA-DR and CD86) on various immune cell subsets, as well as the relative distribution of cell subsets, both have value in predicting immune responses to influenza vaccination in older individuals.
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Affiliation(s)
| | | | | | - Krista M Goergen
- Division of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic, Rochester, MN, USA
| | - Diane E Grill
- Division of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic, Rochester, MN, USA
| | - Ann L Oberg
- Division of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic, Rochester, MN, USA
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