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Chu KH, Chiang BL. CD200R activation on naïve T cells by B cells induces suppressive activity of T cells via IL-24. Cell Mol Life Sci 2024; 81:231. [PMID: 38780647 PMCID: PMC11116298 DOI: 10.1007/s00018-024-05268-2] [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: 08/29/2023] [Revised: 03/30/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
CD200 is an anti-inflammatory protein that facilitates signal transduction through its receptor, CD200R, in cells, resulting in immune response suppression. This includes reducing M1-like macrophages, enhancing M2-like macrophages, inhibiting NK cell cytotoxicity, and downregulating CTL responses. Activation of CD200R has been found to modulate dendritic cells, leading to the induction or enhancement of Treg cells expressing Foxp3. However, the precise mechanisms behind this process are still unclear. Our previous study demonstrated that B cells in Peyer's patches can induce Treg cells, so-called Treg-of-B (P) cells, through STAT6 phosphorylation. This study aimed to investigate the role of CD200 in Treg-of-B (P) cell generation. To clarify the mechanisms, we used wild-type, STAT6 deficient, and IL-24 deficient T cells to generate Treg-of-B (P) cells, and antagonist antibodies (anti-CD200 and anti-IL-20RB), an agonist anti-CD200R antibody, CD39 inhibitors (ARL67156 and POM-1), a STAT6 inhibitor (AS1517499), and soluble IL-20RB were also applied. Our findings revealed that Peyer's patch B cells expressed CD200 to activate the CD200R on T cells and initiate the process of Treg-of-B (P) cells generation. CD200 and CD200R interaction triggers the phosphorylation of STAT6, which regulated the expression of CD200R, CD39, and IL-24 in T cells. CD39 regulated the expression of IL-24, which sustained the expression of CD223 and IL-10 and maintained the cell viability. In summary, the generation of Treg-of-B (P) cells by Peyer's patch B cells was through the CD200R-STAT6-CD39-IL-24 axis pathway.
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Affiliation(s)
- Kuan-Hua Chu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Bor-Luen Chiang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.
- Genome and Systems Biology Degree Program, College of Life Science, National Taiwan University, Taipei, Taiwan.
- Allergy Center, National Taiwan University Hospital, Taipei, Taiwan.
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2
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Lv K, Li M, Sun C, Miao Y, Zhang Y, Liu Y, Guo J, Meng Q, Yao J, Zhang G, Li J. Jingfang Granule alleviates bleomycin-induced acute lung injury via CD200-CD200R immunoregulatory pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023; 311:116423. [PMID: 37011735 DOI: 10.1016/j.jep.2023.116423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 03/01/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Jingfang granules (JF), one famous traditional Chinese formula in "She Sheng Zhong Miao Fang" written by Shi-Che Zhang during the Ming Dynasty era, has been widely used to prevent epidemic diseases in history and now was recommended for the treatment of coronavirus disease 2019 (COVID-19) in China. However, the roles of JF against acute lung injury and its mechanisms remain unclear. AIM OF THE STUDY Acute lung injury (ALI) and its progressive acute respiratory distress syndrome (ARDS) are a continuum of lung inflammatory disease with high morbidity and mortality in clinic, especially in COVID-19 patients. The present study aims to investigate the effect of JF on ALI and clarify its underlying mechanisms for clinical application in COVID-19 control. METHODS Bleomycin-induced ALI mice were given oral gavage daily for seven days with or without Jingfang granules (2, 4 g/kg). The body weight, lung wet/dry weight ratios, lung appearance and tissue histopathology were evaluated. Quantitative real-time PCR, biochemical bronchoalveolar lavage fluids analysis was used to determine the gene expression of proinflammation factor and infiltrated inflammatory cells in lung. Immunofluorescence image and western blot were used to detect the markers of alveolar macrophages (AMs), endothelial cell apoptosis and changes of CD200-CD200R pathway. RESULTS Firstly, histopathological analysis showed that JF significantly attenuated pulmonary injury and inflammatory response in ALI mice. Then, cytokine detection, inflammatory cells assay, and JNKs and p38 pathway analysis indicated that the recruitment and activation of alveolar macrophages was the main reason to cause ALI and JF could reverse this variation. Next, immunofluorescence staining and TUNEL assay showed that JF upregulated the expression of CD200 and suppressed the apoptosis of alveolar endothelial cells. Finally, double immunofluorescence staining of CD200 and CD11c indicated that the seriously damaged tissue had the lower CD200 while more AMs infiltration, which was confirmed by RT-PCR analysis of CD200/CD200R. CONCLUSIONS Jingfang granules can protect lung from acu te injury and mitigate the recruitment and overactive AMs-induced inflammation via CD200-CD200R immunoregulatory signal axis, which will provide an experimental basis for Jingfang granules clinical applications in COVID-19.
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Affiliation(s)
- Ke Lv
- The State Key Laboratory of Medicinal Chemical Biology & College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Mingyue Li
- College of Pharmacy, Nankai University, Tianjin, 300071, China.
| | - Chenghong Sun
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Yu Miao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Yan Zhang
- The State Key Laboratory of Medicinal Chemical Biology & College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yang Liu
- College of Pharmacy, Nankai University, Tianjin, 300071, China.
| | - Jianshuang Guo
- College of Pharmacy, Nankai University, Tianjin, 300071, China.
| | - Qing Meng
- College of Pharmacy, Nankai University, Tianjin, 300071, China.
| | - Jingchun Yao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Guimin Zhang
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Jing Li
- The State Key Laboratory of Medicinal Chemical Biology & College of Chemistry, Nankai University, Tianjin, 300071, China; College of Pharmacy, Nankai University, Tianjin, 300071, China.
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3
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Patoine D, Bouchard K, Blais-Lecours P, Courtemanche O, Huppé CA, Marsolais D, Bissonnette EY, Lauzon-Joset JF. CD200Fc limits dendritic cell and B-cell activation during chronic allergen exposures. J Leukoc Biol 2023; 114:84-91. [PMID: 37032534 DOI: 10.1093/jleuko/qiad042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 02/17/2023] [Accepted: 03/21/2023] [Indexed: 04/11/2023] Open
Abstract
Allergic asthma is a chronic inflammatory disease characterized by Th2, conventional dendritic cell, and B-cell activation. In addition to excessive inflammation, asthma pathogenesis includes dysregulation of anti-inflammatory pathways, such as the CD200/CD200R pathway. Thus, we investigated whether a CD200R agonist, CD200Fc, could disrupt the inflammatory cascade in chronic allergic asthma pathogenesis using a mice model of experimental asthma. Mice were exposed to house dust mites for 5 wk, and CD200Fc treatment was initiated after chronic inflammation was established (starting on week 4). We demonstrate that chronic house dust mite exposure altered CD200 and CD200R expression on lung immune cell populations, including upregulation of CD200 on alveolar macrophages and reduced expression of CD200 on conventional dendritic cells. CD200Fc treatment does not change bronchoalveolar cellular infiltration, but it attenuates B-cell activation and skews the circulating immunoglobulin profile toward IgG2a. This is accompanied by reduced activation of conventional dendritic cells, including lower expression of CD40, especially on conventional dendritic cell subset 2 CD200R+. Furthermore, we confirm that CD200Fc can directly modulate conventional dendritic cell activation in vitro using bone marrow-derived dendritic cells. Thus, the CD200/CD200R pathway is dysregulated during chronic asthma pathogenesis, and the CD200R agonist modulates B-cell and dendritic cell activation but, in our chronic model, is not sufficient to alter inflammation measured in bronchoalveolar lavage.
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Affiliation(s)
- Dany Patoine
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
| | - Karine Bouchard
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
| | - Pascale Blais-Lecours
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
| | - Olivier Courtemanche
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
| | - Carole-Ann Huppé
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
| | - David Marsolais
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, 325 Rue de l'Université, Québec, QC, G1V 0A6, Canada
| | - Elyse Y Bissonnette
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, 325 Rue de l'Université, Québec, QC, G1V 0A6, Canada
| | - Jean-Francois Lauzon-Joset
- Centre de Recherche, de l'Institut de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, QC, G1V 4G5, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, 325 Rue de l'Université, Québec, QC, G1V 0A6, Canada
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Kanannejad Z, Soleimanian S, Ghahramani Z, Sepahi N, Mohkam M, Alyasin S, Kheshtchin N. Immune checkpoint molecules in prevention and development of asthma. Front Immunol 2023; 14:1070779. [PMID: 36865540 PMCID: PMC9972681 DOI: 10.3389/fimmu.2023.1070779] [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: 10/15/2022] [Accepted: 01/30/2023] [Indexed: 02/16/2023] Open
Abstract
Allergic asthma is a respiratory disease initiated by type-2 immune responses characterized by secretion of alarmins, interleukin-4 (IL-4), IL-5, and IL-13, eosinophilic inflammation, and airway hyperresponsiveness (AHR). Immune checkpoints (ICPs) are inhibitory or stimulatory molecules expressed on different immune cells, tumor cells, or other cell types that regulate immune system activation and maintain immune homeostasis. Compelling evidence indicates a key role for ICPs in both the progression and prevention of asthma. There is also evidence of asthma development or exacerbation in some cancer patients receiving ICP therapy. The aim of this review is to provide an updated overview of ICPs and their roles in asthma pathogenesis, and to assess their implications as therapeutic targets in asthma.
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Affiliation(s)
- Zahra Kanannejad
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeede Soleimanian
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Ghahramani
- Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Najmeh Sepahi
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Milad Mohkam
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soheila Alyasin
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasim Kheshtchin
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Patoine D, Bouchard K, Lemay AM, Bissonnette EY, Lauzon-Joset JF. Specificity of CD200/CD200R pathway in LPS-induced lung inflammation. Front Immunol 2022; 13:1092126. [PMID: 36591265 PMCID: PMC9797531 DOI: 10.3389/fimmu.2022.1092126] [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: 11/07/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
Introduction At lung mucosal surfaces, immune cells must initiate inflammatory response against pathogen without inducing tissue damage. Loss of this equilibrium can lead to acute respiratory distress syndrome (ARDS), a severe lung inflammatory disease characterized by excessive inflammation and dysregulation of anti-inflammatory pathways. Methods To investigate the role of anti-inflammatory pathway CD200/CD200R in lung inflammatory response, we administered LPS intratracheally in CD200 KO and wild type (WT) rats. Inflammation was evaluated using bronchoalveolar lavage (BAL) cellularity. Lung injury was measured by total protein level in BAL fluid, and levels of proinflammatory cytokines (TNF, IL-6) and chemokines (CXCL2, CCL2) were determined in BAL supernatants. In a second series of experiments, recombinant CD200Fc was administered to KO rats to restore the anti-inflammatory response. Results At baseline, CD200 KO rats did not show sign of inflammation, however KO rats had lower number of alveolar macrophages. In addition, LPS administration induced greater pulmonary edema in CD200 KO rats. This was accompanied with a higher recruitment of neutrophils as well as levels of TNF, IL-6, CXCL2, and CCL2 in BAL compared to WT rats. CD200Fc administration in KO rats reduced neutrophil accumulation and TNF and CXCL2 levels in BAL. Interestingly, the increased inflammatory response of CD200 KO rats could be attributed to greater activation potential of alveolar macrophages with higher levels of ERK and P-ERK MAPK. Conclusion This study shows that lung inflammatory response is exacerbated in absence of CD200 in an experimental model of ARDS in rats. In addition, CD200/CD200R pathway shows selective regulation of acute lung inflammation and cannot completely abrogate the complex LPS-induced inflammatory response. However, addition of CD200 agonist in a multi-target therapy strategy could have beneficial impacts.
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Affiliation(s)
- Dany Patoine
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, QC, Canada
| | - Karine Bouchard
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, QC, Canada
| | - Anne-Marie Lemay
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, QC, Canada
| | - Elyse Y. Bissonnette
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, QC, Canada,Department of Medicine, Faculty of Medicine, Université Laval, Quebec, QC, Canada
| | - Jean-Francois Lauzon-Joset
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, QC, Canada,Department of Medicine, Faculty of Medicine, Université Laval, Quebec, QC, Canada,*Correspondence: Jean-Francois Lauzon-Joset,
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6
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Zhu T, Brown AP, Cai LP, Quon G, Ji H. Single-Cell RNA-Seq Analysis Reveals Lung Epithelial Cell Type-Specific Responses to HDM and Regulation by Tet1. Genes (Basel) 2022; 13:genes13050880. [PMID: 35627266 PMCID: PMC9140484 DOI: 10.3390/genes13050880] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/06/2022] [Accepted: 05/11/2022] [Indexed: 11/16/2022] Open
Abstract
Tet1 protects against house dust mite (HDM)-induced lung inflammation in mice and alters the lung methylome and transcriptome. In order to explore the role of Tet1 in individual lung epithelial cell types in HDM-induced inflammation, we established a model of HDM-induced lung inflammation in Tet1 knockout and littermate wild-type mice, then studied EpCAM+ lung epithelial cells using single-cell RNA-seq analysis. We identified eight EpCAM+ lung epithelial cell types, among which AT2 cells were the most abundant. HDM challenge altered the relative abundance of epithelial cell types and resulted in cell type-specific transcriptomic changes. Bulk and cell type-specific analysis also showed that loss of Tet1 led to the altered expression of genes linked to augmented HDM-induced lung inflammation, including alarms, detoxification enzymes, oxidative stress response genes, and tissue repair genes. The transcriptomic regulation was accompanied by alterations in TF activities. Trajectory analysis supports that HDM may enhance the differentiation of AP and BAS cells into AT2 cells, independent of Tet1. Collectively, our data showed that lung epithelial cells had common and unique transcriptomic signatures of allergic lung inflammation. Tet1 deletion altered transcriptomic networks in various lung epithelial cells, which may promote allergen-induced lung inflammation.
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Affiliation(s)
- Tao Zhu
- California National Primate Research Center, University of California, Davis, CA 95616, USA; (T.Z.); (A.P.B.); (L.P.C.)
| | - Anthony P. Brown
- California National Primate Research Center, University of California, Davis, CA 95616, USA; (T.Z.); (A.P.B.); (L.P.C.)
| | - Lucy P. Cai
- California National Primate Research Center, University of California, Davis, CA 95616, USA; (T.Z.); (A.P.B.); (L.P.C.)
| | - Gerald Quon
- Department of Molecular and Cellular Biology, Genome Center, University of California, Davis, CA 95616, USA;
| | - Hong Ji
- California National Primate Research Center, University of California, Davis, CA 95616, USA; (T.Z.); (A.P.B.); (L.P.C.)
- Department of Anatomy, Physiology and Cell biology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
- Correspondence: ; Tel.: +1-530-754-0679
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Zissler UM, Jakwerth CA, Guerth F, Lewitan L, Rothkirch S, Davidovic M, Ulrich M, Oelsner M, Garn H, Schmidt‐Weber CB, Chaker AM. Allergen-specific immunotherapy induces the suppressive secretoglobin 1A1 in cells of the lower airways. Allergy 2021; 76:2461-2474. [PMID: 33528894 DOI: 10.1111/all.14756] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/29/2020] [Accepted: 01/03/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND While several systemic immunomodulatory effects of allergen-specific immunotherapy (AIT) have been discovered, local anti-inflammatory mechanisms in the respiratory tract are largely unknown. We sought to elucidate local and epithelial mechanisms underlying allergen-specific immunotherapy in a genome-wide approach. METHODS We induced sputum in hay fever patients and healthy controls during the pollen peak season and stratified patients by effective allergen immunotherapy or as untreated. Sputum was directly processed after induction and subjected to whole transcriptome RNA microarray analysis. Nasal secretions were analyzed for Secretoglobin1A1 (SCGB1A1) and IL-24 protein levels in an additional validation cohort at three defined time points during the 3-year course of AIT. Subsequently, RNA was extracted and subjected to an array-based whole transcriptome analysis. RESULTS Allergen-specific immunotherapy inhibited pro-inflammatory CXCL8, IL24, and CCL26mRNA expression, while SCGB1A1, IL7, CCL5, CCL23, and WNT5BmRNAs were induced independently of the asthma status and allergen season. In our validation cohort, local increase of SCGB1A1 occurred concomitantly with the reduction of local IL-24 in upper airways during the course of AIT. Additionally, SCGB1A1 was identified as a suppressor of epithelial gene expression. CONCLUSIONS Allergen-specific immunotherapy induces a yet unknown local gene expression footprint in the lower airways that on one hand appears to be a result of multiple regulatory pathways and on the other hand reveals SCGB1A1 as novel anti-inflammatory mediator of long-term allergen-specific therapeutic intervention in the local environment.
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Affiliation(s)
- Ulrich M. Zissler
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
- Member of the Helmholtz I&I Initiative Munich Germany
| | - Constanze A. Jakwerth
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
| | - Ferdinand Guerth
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
| | - Larissa Lewitan
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
- Department of Otorhinolaryngology and Head and Neck Surgery Medical School Technical University of Munich Munich Germany
| | - Sandra Rothkirch
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
- Department of Otorhinolaryngology and Head and Neck Surgery Medical School Technical University of Munich Munich Germany
| | - Miodrag Davidovic
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
- Department of Otorhinolaryngology and Head and Neck Surgery Medical School Technical University of Munich Munich Germany
| | - Moritz Ulrich
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
- Department of Otorhinolaryngology and Head and Neck Surgery Medical School Technical University of Munich Munich Germany
| | - Madlen Oelsner
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
| | - Holger Garn
- Institute of Laboratory Medicine and Pathobiochemistry Philipps University MarburgMedical FacultyMember of the German Center of Lung Research Marburg Germany
| | - Carsten B. Schmidt‐Weber
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
- Member of the Helmholtz I&I Initiative Munich Germany
| | - Adam M. Chaker
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
- Member of the German Center for Lung Research (DZL) Munich Germany
- Department of Otorhinolaryngology and Head and Neck Surgery Medical School Technical University of Munich Munich Germany
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Bissonnette EY, Lauzon-Joset JF, Debley JS, Ziegler SF. Cross-Talk Between Alveolar Macrophages and Lung Epithelial Cells is Essential to Maintain Lung Homeostasis. Front Immunol 2020; 11:583042. [PMID: 33178214 PMCID: PMC7593577 DOI: 10.3389/fimmu.2020.583042] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/30/2020] [Indexed: 12/22/2022] Open
Abstract
The main function of the lung is to perform gas exchange while maintaining lung homeostasis despite environmental pathogenic and non-pathogenic elements contained in inhaled air. Resident cells must keep lung homeostasis and eliminate pathogens by inducing protective immune response and silently remove innocuous particles. Which lung cell type is crucial for this function is still subject to debate, with reports favoring either alveolar macrophages (AMs) or lung epithelial cells (ECs) including airway and alveolar ECs. AMs are the main immune cells in the lung in steady-state and their function is mainly to dampen inflammatory responses. In addition, they phagocytose inhaled particles and apoptotic cells and can initiate and resolve inflammatory responses to pathogens. Although AMs release a plethora of mediators that modulate immune responses, ECs also play an essential role as they are more than just a physical barrier. They produce anti-microbial peptides and can secrete a variety of mediators that can modulate immune responses and AM functions. Furthermore, ECs can maintain AMs in a quiescent state by expressing anti-inflammatory membrane proteins such as CD200. Thus, AMs and ECs are both very important to maintain lung homeostasis and have to coordinate their action to protect the organism against infection. Thus, AMs and lung ECs communicate with each other using different mechanisms including mediators, membrane glycoproteins and their receptors, gap junction channels, and extracellular vesicles. This review will revisit characteristics and functions of AMs and lung ECs as well as different communication mechanisms these cells utilize to maintain lung immune balance and response to pathogens. A better understanding of the cross-talk between AMs and lung ECs may help develop new therapeutic strategies for lung pathogenesis.
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Affiliation(s)
- Elyse Y Bissonnette
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Department of Medicine, Université Laval, Quebec City, QC, Canada
| | - Jean-François Lauzon-Joset
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Department of Medicine, Université Laval, Quebec City, QC, Canada
| | - Jason S Debley
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, United States
| | - Steven F Ziegler
- Department of Immunology, Benaroya Research Institute, University of Washington School of Medicine, Seattle, WA, United States
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9
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Lauzon-Joset JF, Marsolais D, Tardif-Pellerin É, Patoine D, Bissonnette EY. CD200 in asthma. Int J Biochem Cell Biol 2019; 112:141-144. [PMID: 31077782 DOI: 10.1016/j.biocel.2019.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/07/2019] [Indexed: 12/18/2022]
Abstract
Constant exposure to foreign particles in the airways requires tight immune regulation in order to maintain sufficient anti-microbial defences, while preventing immunopathological responses that could impair gas exchange. Dysregulation of immunoregulatory pathways has been associated with asthma and allergy. This review will focus on the CD200 regulatory pathway and its role in the asthmatic cascade. CD200 and its receptors are highly expressed in the lung, on epithelial cells and leukocytes, and emerging evidence links dysregulation of the CD200 pathway with asthma. Moreover, pharmacological modulation of CD200 receptors was shown to improve clinical and inflammatory outcomes of preclinical asthma models. Therefore, the involvement of CD200 in asthma is increasingly recognized and preclinical studies support the contention that it could constitute an additional target to alleviate asthma exacerbation and/or reduce disease severity.
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Affiliation(s)
- Jean-François Lauzon-Joset
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, université Laval, Canada; Département de Médicine, Université Laval, Québec, Canada
| | - David Marsolais
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, université Laval, Canada; Département de Médicine, Université Laval, Québec, Canada
| | - Éliane Tardif-Pellerin
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, université Laval, Canada
| | - Dany Patoine
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, université Laval, Canada
| | - Elyse Y Bissonnette
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, université Laval, Canada; Département de Médicine, Université Laval, Québec, Canada.
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10
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A Synthetic Cross-Species CD200R1 Agonist Suppresses Inflammatory Immune Responses In Vivo. MOLECULAR THERAPY-NUCLEIC ACIDS 2018; 12:350-358. [PMID: 30195773 PMCID: PMC6037911 DOI: 10.1016/j.omtn.2018.05.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 05/25/2018] [Accepted: 05/26/2018] [Indexed: 01/10/2023]
Abstract
Functional aptamers displaying agonistic or antagonistic properties are showing great promise as modulators of immune responses. Here, we report the development of a polyethylene glycol-modified (PEGylated) DNA aptamer as a cross-species (murine and human) CD200R1 agonist that modulates inflammatory responses in vivo. Specifically, DNA aptamers were discovered by performing independent SELEX searches on recombinant murine and human CD200R1. Aptamer motifs identified by next generation sequencing (NGS) were subsequently compared, leading to the discovery of motifs common to both targets. The CD200R1 DNA aptamer CCS13 displayed the highest agonistic activity toward CD200R1 in terms of suppressing the induction of cytotoxic T-lymphocytes (CTLs) in both human and murine allogeneic-mixed lymphocyte cultures (allo-MLCs). A 20-kDa polyethylene glycol (PEG) chain was covalently attached to the 5′ end of this aptamer, and the resulting conjugate was shown to block inflammatory responses in murine models of skin graft rejection and house-dust-mite-induced allergic airway inflammation. Importantly, this agonistic aptamer does not suppress CTL induction in 5-day allo-MLCs with responder cells derived from CD200R1−/− mice, indicating that its mode of action is directly linked to CD200R1 activation. This study suggests that one can derive agonistic DNA aptamers that can be verified as immuno-modulators in murine models with outcomes potentially translatable to the treatment of human conditions.
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Yan D, Hamed O, Joshi T, Mostafa MM, Jamieson KC, Joshi R, Newton R, Giembycz MA. Analysis of the Indacaterol-Regulated Transcriptome in Human Airway Epithelial Cells Implicates Gene Expression Changes in the Adverse and Therapeutic Effects of β2-Adrenoceptor Agonists. J Pharmacol Exp Ther 2018; 366:220-236. [PMID: 29653961 DOI: 10.1124/jpet.118.249292] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/11/2018] [Indexed: 12/13/2022] Open
Abstract
The contribution of gene expression changes to the adverse and therapeutic effects of β2-adrenoceptor agonists in asthma was investigated using human airway epithelial cells as a therapeutically relevant target. Operational model-fitting established that the long-acting β2-adrenoceptor agonists (LABA) indacaterol, salmeterol, formoterol, and picumeterol were full agonists on BEAS-2B cells transfected with a cAMP-response element reporter but differed in efficacy (indacaterol ≥ formoterol > salmeterol ≥ picumeterol). The transcriptomic signature of indacaterol in BEAS-2B cells identified 180, 368, 252, and 10 genes that were differentially expressed (>1.5- to <0.67-fold) after 1-, 2-, 6-, and 18-hour of exposure, respectively. Many upregulated genes (e.g., AREG, BDNF, CCL20, CXCL2, EDN1, IL6, IL15, IL20) encode proteins with proinflammatory activity and are annotated by several, enriched gene ontology (GO) terms, including cellular response to interleukin-1, cytokine activity, and positive regulation of neutrophil chemotaxis The general enriched GO term extracellular space was also associated with indacaterol-induced genes, and many of those, including CRISPLD2, DMBT1, GAS1, and SOCS3, have putative anti-inflammatory, antibacterial, and/or antiviral activity. Numerous indacaterol-regulated genes were also induced or repressed in BEAS-2B cells and human primary bronchial epithelial cells by the low efficacy LABA salmeterol, indicating that this genomic effect was neither unique to indacaterol nor restricted to the BEAS-2B airway epithelial cell line. Collectively, these data suggest that the consequences of inhaling a β2-adrenoceptor agonist may be complex and involve widespread changes in gene expression. We propose that this genomic effect represents a generally unappreciated mechanism that may contribute to the adverse and therapeutic actions of β2-adrenoceptor agonists in asthma.
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Affiliation(s)
- Dong Yan
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Omar Hamed
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Taruna Joshi
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Mahmoud M Mostafa
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kyla C Jamieson
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Radhika Joshi
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Robert Newton
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Mark A Giembycz
- Departments of Physiology and Pharmacology (D.Y., O.H., T.J., K.C.J., R.J., M.A.G.) and Cell Biology and Anatomy (M.M.M., R.N.), Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Newton R, Giembycz MA. Understanding how long-acting β 2 -adrenoceptor agonists enhance the clinical efficacy of inhaled corticosteroids in asthma - an update. Br J Pharmacol 2016; 173:3405-3430. [PMID: 27646470 DOI: 10.1111/bph.13628] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 08/19/2016] [Accepted: 08/21/2016] [Indexed: 12/18/2022] Open
Abstract
In moderate-to-severe asthma, adding an inhaled long-acting β2 -adenoceptor agonist (LABA) to an inhaled corticosteroid (ICS) provides better disease control than simply increasing the dose of ICS. Acting on the glucocorticoid receptor (GR, gene NR3C1), ICSs promote anti-inflammatory/anti-asthma gene expression. In vitro, LABAs synergistically enhance the maximal expression of many glucocorticoid-induced genes. Other genes, including dual-specificity phosphatase 1(DUSP1) in human airways smooth muscle (ASM) and epithelial cells, are up-regulated additively by both drug classes. Synergy may also occur for LABA-induced genes, as illustrated by the bronchoprotective gene, regulator of G-protein signalling 2 (RGS2) in ASM. Such effects cannot be produced by either drug alone and may explain the therapeutic efficacy of ICS/LABA combination therapies. While the molecular basis of synergy remains unclear, mechanistic interpretations must accommodate gene-specific regulation. We explore the concept that each glucocorticoid-induced gene is an independent signal transducer optimally activated by a specific, ligand-directed, GR conformation. In addition to explaining partial agonism, this realization provides opportunities to identify novel GR ligands that exhibit gene expression bias. Translating this into improved therapeutic ratios requires consideration of GR density in target tissues and further understanding of gene function. Similarly, the ability of a LABA to interact with a glucocorticoid may be suboptimal due to low β2 -adrenoceptor density or biased β2 -adrenoceptor signalling. Strategies to overcome these limitations include adding-on a phosphodiesterase inhibitor and using agonists of other Gs-coupled receptors. In all cases, the rational design of ICS/LABA, and derivative, combination therapies requires functional knowledge of induced (and repressed) genes for therapeutic benefit to be maximized.
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Affiliation(s)
- Robert Newton
- Department of Cell Biology and Anatomy, Airways Inflammation Research Group, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Mark A Giembycz
- Department of Physiology and Pharmacology, Airways Inflammation Research Group, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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Gangwar RS, Landolina N, Arpinati L, Levi-Schaffer F. Mast cell and eosinophil surface receptors as targets for anti-allergic therapy. Pharmacol Ther 2016; 170:37-63. [PMID: 27773785 DOI: 10.1016/j.pharmthera.2016.10.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Roopesh Singh Gangwar
- Pharmacology & Experimental Therapeutics Unit, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Nadine Landolina
- Pharmacology & Experimental Therapeutics Unit, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Ludovica Arpinati
- Pharmacology & Experimental Therapeutics Unit, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Francesca Levi-Schaffer
- Pharmacology & Experimental Therapeutics Unit, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Israel.
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Singh J, Shah R, Singh D. Inundation of asthma target research: Untangling asthma riddles. Pulm Pharmacol Ther 2016; 41:60-85. [PMID: 27667568 DOI: 10.1016/j.pupt.2016.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 08/11/2016] [Accepted: 09/20/2016] [Indexed: 12/31/2022]
Abstract
Asthma is an inveterate inflammatory disorder, delineated by the airway inflammation, bronchial hyperresponsiveness (BHR) and airway wall remodeling. Although, asthma is a vague term, and is recognized as heterogenous entity encompassing different phenotypes. Targeting single mediator or receptor did not prove much clinical significant, as asthma is complex disease involving myriad inflammatory mediators. Asthma may probably involve a large number of different types of molecular and cellular components interacting through complex pathophysiological pathways. This review covers the past, present, and future therapeutic approaches and pathophysiological mechanisms of asthma. Furthermore, review describe importance of targeting several mediators/modulators and receptor antagonists involved in the physiopathology of asthma. Novel targets for asthma research include Galectins, Immunological targets, K + Channels, Kinases and Transcription Factors, Toll-like receptors, Selectins and Transient receptor potential channels. But recent developments in asthma research are very promising, these include Bitter taste receptors (TAS2R) abated airway obstruction in mouse model of asthma and Calcium-sensing receptor obliterate inflammation and in bronchial hyperresponsiveness allergic asthma. All these progresses in asthma targets, and asthma phenotypes exploration are auspicious in untangling of asthma riddles.
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Affiliation(s)
- Jatinder Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, 147002, Punjab, India
| | - Ramanpreet Shah
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, 147002, Punjab, India
| | - Dhandeep Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, 147002, Punjab, India.
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Weitnauer M, Mijošek V, Dalpke AH. Control of local immunity by airway epithelial cells. Mucosal Immunol 2016; 9:287-98. [PMID: 26627458 DOI: 10.1038/mi.2015.126] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 10/25/2015] [Indexed: 02/04/2023]
Abstract
The lung is ventilated by thousand liters of air per day. Inevitably, the respiratory system comes into contact with airborne microbial compounds, most of them harmless contaminants. Airway epithelial cells are known to have innate sensor functions, thus being able to detect microbial danger. To avoid chronic inflammation, the pulmonary system has developed specific means to control local immune responses. Even though airway epithelial cells can act as proinflammatory promoters, we propose that under homeostatic conditions airway epithelial cells are important modulators of immune responses in the lung. In this review, we discuss epithelial cell regulatory functions that control reactivity of professional immune cells within the microenvironment of the airways and how these mechanisms are altered in pulmonary diseases. Regulation by epithelial cells can be divided into two mechanisms: (1) mediators regulate epithelial cells' innate sensitivity in cis and (2) factors are produced that limit reactivity of immune cells in trans.
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Affiliation(s)
- M Weitnauer
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University Hospital Heidelberg, Heidelberg, Germany
| | - V Mijošek
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University Hospital Heidelberg, Heidelberg, Germany
| | - A H Dalpke
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University Hospital Heidelberg, Heidelberg, Germany.,Translational Lung Research Center (TLRC), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
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First genomic analysis of dendritic cells from lung and draining lymph nodes in murine asthma. Int J Genomics 2015; 2015:638032. [PMID: 25811019 PMCID: PMC4355561 DOI: 10.1155/2015/638032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 02/09/2015] [Accepted: 02/09/2015] [Indexed: 01/05/2023] Open
Abstract
Asthma is the consequence of allergic inflammation in the lung compartments and lung-draining lymph nodes. Dendritic cells initiate and promote T cell response and drive it to immunity or allergy. However, their modes of action during asthma are poorly understood. In this study, an allergic inflammation with ovalbumin was induced in 38 mice versus 42 control animals. After ovalbumin aerosol challenge, conventional dendritic cells (CD11c/MHCII/CD8) were isolated from the lungs and the draining lymph nodes by means of magnetic cell sorting followed by fluorescence-activated cell sorting. A comparative transcriptional analysis was performed using gene arrays. In general, many transcripts are up- and downregulated in the CD8− dendritic cells of the allergic inflamed lung tissue, whereas few genes are regulated in CD8+ dendritic cells. The dendritic cells of the lymph nodes also showed minor transcriptional changes. The data support the relevance of the CD8− conventional dendritic cells but do not exclude distinct functions of the small population of CD8+ dendritic cells, such as cross presentation of external antigen. So far, this is the first approach performing gene arrays in dendritic cells obtained from lung tissue and lung-draining lymph nodes of asthmatic-like mice.
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