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Monti M, Ferrari G, Grosso V, Missale F, Bugatti M, Cancila V, Zini S, Segala A, La Via L, Consoli F, Orlandi M, Valerio A, Tripodo C, Rossato M, Vermi W. Impaired activation of plasmacytoid dendritic cells via toll-like receptor 7/9 and STING is mediated by melanoma-derived immunosuppressive cytokines and metabolic drift. Front Immunol 2024; 14:1227648. [PMID: 38239354 PMCID: PMC10795195 DOI: 10.3389/fimmu.2023.1227648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 12/04/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction Plasmacytoid dendritic cells (pDCs) infiltrate a large set of human cancers. Interferon alpha (IFN-α) produced by pDCs induces growth arrest and apoptosis in tumor cells and modulates innate and adaptive immune cells involved in anti-cancer immunity. Moreover, effector molecules exert tumor cell killing. However, the activation state and clinical relevance of pDCs infiltration in cancer is still largely controversial. In Primary Cutaneous Melanoma (PCM), pDCs density decreases over disease progression and collapses in metastatic melanoma (MM). Moreover, the residual circulating pDC compartment is defective in IFN-α production. Methods The activation of tumor-associated pDCs was evaluated by in silico and microscopic analysis. The expression of human myxovirus resistant protein 1 (MxA), as surrogate of IFN-α production, and proximity ligation assay (PLA) to test dsDNA-cGAS activation were performed on human melanoma biopsies. Moreover, IFN-α and CXCL10 production by in vitro stimulated (i.e. with R848, CpG-A, ADU-S100) pDCs exposed to melanoma cell lines supernatants (SN-mel) was tested by intracellular flow cytometry and ELISA. We also performed a bulk RNA-sequencing on SN-mel-exposed pDCs, resting or stimulated with R848. Glycolytic rate assay was performed on SN-mel-exposed pDCs using the Seahorse XFe24 Extracellular Flux Analyzer. Results Based on a set of microscopic, functional and in silico analyses, we demonstrated that the melanoma milieu directly impairs IFN-α and CXCL10 production by pDCs via TLR-7/9 and cGAS-STING signaling pathways. Melanoma-derived immunosuppressive cytokines and a metabolic drift represent relevant mechanisms enforcing pDC-mediated melanoma escape. Discussion These findings propose a new window of intervention for novel immunotherapy approaches to amplify the antitumor innate immune response in cutaneous melanoma (CM).
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Affiliation(s)
- Matilde Monti
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Giorgia Ferrari
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Valentina Grosso
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Francesco Missale
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Department of Head & Neck Oncology & Surgery Otorhinolaryngology, Nederlands Kanker Instituut, Amsterdam, Netherlands
| | - Mattia Bugatti
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Valeria Cancila
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Stefania Zini
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Agnese Segala
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Luca La Via
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Francesca Consoli
- Oncology Unit, Azienda Socio Sanitaria Territoriale (ASST) Spedali Civili di Brescia, Brescia, Italy
| | - Matteo Orlandi
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Claudio Tripodo
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
- IFOM ETS, the AIRC Institute of Molecular Oncology, Milan, Italy
| | - Marzia Rossato
- Department of Biotechnology, University of Verona, Verona, Italy
| | - William Vermi
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States
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Xia Y, Fu S, Ma Q, Liu Y, Zhang N. Application of Nano-Delivery Systems in Lymph Nodes for Tumor Immunotherapy. NANO-MICRO LETTERS 2023; 15:145. [PMID: 37269391 PMCID: PMC10239433 DOI: 10.1007/s40820-023-01125-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/07/2023] [Indexed: 06/05/2023]
Abstract
Immunotherapy has become a promising research "hotspot" in cancer treatment. "Soldier" immune cells are not uniform throughout the body; they accumulate mostly in the immune organs such as the spleen and lymph nodes (LNs), etc. The unique structure of LNs provides the microenvironment suitable for the survival, activation, and proliferation of multiple types of immune cells. LNs play an important role in both the initiation of adaptive immunity and the generation of durable anti-tumor responses. Antigens taken up by antigen-presenting cells in peripheral tissues need to migrate with lymphatic fluid to LNs to activate the lymphocytes therein. Meanwhile, the accumulation and retaining of many immune functional compounds in LNs enhance their efficacy significantly. Therefore, LNs have become a key target for tumor immunotherapy. Unfortunately, the nonspecific distribution of the immune drugs in vivo greatly limits the activation and proliferation of immune cells, which leads to unsatisfactory anti-tumor effects. The efficient nano-delivery system to LNs is an effective strategy to maximize the efficacy of immune drugs. Nano-delivery systems have shown beneficial in improving biodistribution and enhancing accumulation in lymphoid tissues, exhibiting powerful and promising prospects for achieving effective delivery to LNs. Herein, the physiological structure and the delivery barriers of LNs were summarized and the factors affecting LNs accumulation were discussed thoroughly. Moreover, developments in nano-delivery systems were reviewed and the transformation prospects of LNs targeting nanocarriers were summarized and discussed.
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Affiliation(s)
- Yiming Xia
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Shunli Fu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Qingping Ma
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Yongjun Liu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, People's Republic of China.
| | - Na Zhang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, 250012, Shandong, People's Republic of China.
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3
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Gao Y, Wang Z, Cui Y, Xu M, Weng L. Emerging Strategies of Engineering and Tracking Dendritic Cells for Cancer Immunotherapy. ACS APPLIED BIO MATERIALS 2023; 6:24-43. [PMID: 36520013 DOI: 10.1021/acsabm.2c00790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Dendritic cells (DCs), a kind of specialized immune cells, play key roles in antitumor immune response and promotion of innate and adaptive immune responses. Recently, many strategies have been developed to utilize DCs in cancer therapy, such as delivering antigens and adjuvants to DCs and using scaffold to recruit and activate DCs. Here we outline how different DC subsets influence antitumor immunity, summarize the FDA-approved vaccines and cancer vaccines under clinical trials, discuss the strategies for engineering DCs and noninvasive tracking of DCs to improve antitumor immunotherapy, and reveal the potential of artificial neural networks for the design of DC based vaccines.
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Affiliation(s)
- Yu Gao
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Zhixuan Wang
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Ying Cui
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Miaomiao Xu
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Lixing Weng
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.,School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
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4
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Kakwere H, Harriman R, Pirir M, Avila C, Chan K, Lewis J. Engineering immunomodulatory nanoplatforms from commensal bacteria-derived polysaccharide A. J Mater Chem B 2022; 10:1210-1225. [DOI: 10.1039/d1tb02590b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Capsular zwitterionic polysaccharides (CZPs), typically found on the surfaces of commensal gut bacteria, are important immunomodulatory molecules due to their ability to produce a T-cell dependent immune response upon processing...
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Klaeske K, Lehmann S, Palitzsch R, Büttner P, Barten MJ, Jawad K, Eifert S, Saeed D, Borger MA, Dieterlen MT. Everolimus-Induced Immune Effects after Heart Transplantation: A Possible Tool for Clinicians to Monitor Patients at Risk for Transplant Rejection. Life (Basel) 2021; 11:1373. [PMID: 34947904 PMCID: PMC8703808 DOI: 10.3390/life11121373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/03/2021] [Accepted: 12/07/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Patients treated with an inhibitor of the mechanistic target of rapamycin (mTORI) in a calcineurin inhibitor (CNI)-free immunosuppressive regimen after heart transplantation (HTx) show a higher risk for transplant rejection. We developed an immunological monitoring tool that may improve the identification of mTORI-treated patients at risk for rejection. METHODS Circulating dendritic cells (DCs) and regulatory T cells (Tregs) were analysed in 19 mTORI- and 20 CNI-treated HTx patients by flow cytometry. Principal component and cluster analysis were used to identify patients at risk for transplant rejection. RESULTS The percentages of total Tregs (p = 0.02) and CD39+ Tregs (p = 0.05) were higher in mTORI-treated patients than in CNI-treated patients. The principal component analysis revealed that BDCA1+, BDCA2+ and BDCA4+ DCs as well as total Tregs could distinguish between non-rejecting and rejecting mTORI-treated patients. Most mTORI-treated rejectors showed higher levels of BDCA2+ and BDCA4+ plasmacytoid DCs and lower levels of BDCA1+ myeloid DCs and Tregs than mTORI non-rejectors. CONCLUSION An mTORI-based immunosuppressive regimen induced a sufficient, tolerance-promoting reaction in Tregs, but an insufficient, adverse effect in DCs. On the basis of patient-specific immunological profiles, we established a flow cytometry-based monitoring tool that may be helpful in identifying patients at risk for rejection.
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Affiliation(s)
- Kristin Klaeske
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
| | - Sven Lehmann
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
| | - Robert Palitzsch
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
| | - Petra Büttner
- Heart Center Leipzig, Department of Internal Medicine and Cardiology, University of Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany;
| | - Markus J. Barten
- Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Martinistraße 52, 20246 Hamburg, Germany;
| | - Khalil Jawad
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
| | - Sandra Eifert
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
| | - Diyar Saeed
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
| | - Michael A. Borger
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
| | - Maja-Theresa Dieterlen
- Heart Center, Department of Cardiac Surgery, HELIOS Clinic, University Hospital Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany; (K.K.); (S.L.); (R.P.); (K.J.); (S.E.); (D.S.); (M.A.B.)
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Li Z, Zhang W, Luo F, Li J, Yang W, Zhu B, Wu Q, Wang X, Sun C, Xie Y, Xu B, Wang Z, Qian F, Chen J, Wan Y, Hu W. Allergen-Specific Treg Cells Upregulated by Lung-Stage S. japonicum Infection Alleviates Allergic Airway Inflammation. Front Cell Dev Biol 2021; 9:678377. [PMID: 34169075 PMCID: PMC8217774 DOI: 10.3389/fcell.2021.678377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/22/2021] [Indexed: 11/24/2022] Open
Abstract
Schistosoma japonicum infection showed protective effects against allergic airway inflammation (AAI). However, controversial findings exist especially regarding the timing of the helminth infection and the underlying mechanisms. Most previous studies focused on understanding the preventive effect of S. japonicum infection on asthma (infection before allergen sensitization), whereas the protective effects of S. japonicum infection (allergen sensitization before infection) on asthma were rarely investigated. In this study, we investigated the protective effects of S. japonicum infection on AAI using a mouse model of OVA-induced asthma. To explore how the timing of S. japonicum infection influences its protective effect, the mice were percutaneously infected with cercaria of S. japonicum at either 1 day (infection at lung-stage during AAI) or 14 days before ovalbumin (OVA) challenge (infection at post–lung-stage during AAI). We found that lung-stage S. japonicum infection significantly ameliorated OVA-induced AAI, whereas post–lung-stage infection did not. Mechanistically, lung-stage S. japonicum infection significantly upregulated the frequency of regulatory T cells (Treg cells), especially OVA-specific Treg cells, in lung tissue, which negatively correlated with the level of OVA-specific immunoglobulin E (IgE). Depletion of Treg cells in vivo partially counteracted the protective effect of lung-stage S. japonicum infection on asthma. Furthermore, transcriptomic analysis of lung tissue showed that lung-stage S. japonicum infection during AAI shaped the microenvironment to favor Treg induction. In conclusion, our data showed that lung-stage S. japonicum infection could relieve OVA-induced asthma in a mouse model. The protective effect was mediated by the upregulated OVA-specific Treg cells, which suppressed IgE production. Our results may facilitate the discovery of a novel therapy for AAI.
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Affiliation(s)
- Zhidan Li
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Wei Zhang
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Fang Luo
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Jian Li
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China.,Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenbin Yang
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Bingkuan Zhu
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Qunfeng Wu
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Xiaoling Wang
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Chengsong Sun
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Yuxiang Xie
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Bin Xu
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Zhaojun Wang
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Qian
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Jiaxu Chen
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Yanmin Wan
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Wei Hu
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China.,State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China.,Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
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Plasmacytoid Dendritic Cell-driven Induction of Treg Is Strain Specific and Correlates With Spontaneous Acceptance of Kidney Allografts. Transplantation 2020; 104:39-53. [PMID: 31335760 DOI: 10.1097/tp.0000000000002867] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND DBA/2J kidney allografts, but not heart allografts, are spontaneously accepted indefinitely in C57BL/6 (B6) mice, through regulatory tolerance mechanism dependent on Foxp3 cells. In contrast, B6 kidneys are rejected within a week in DBA/2J recipients. We hypothesized that the tolerogenic difference of the kidneys might be due to differences in number or function of plasmacytoid dendritic cells (pDCs), because these cells are potent inducers of Foxp3 cells. METHODS pDCs from murine bone marrow, native kidneys, and spontaneously accepted kidney allografts were analyzed using flow cytometry and immunohistochemical staining. Naive T cells were cocultured with pDCs in specific strain combinations and analyzed for FoxP3 induction and functionality. MEK/ERK and NFκB inhibitors were used to assess the regulatory T-cell induction pathways. pDCs and T-cell cultures were adoptively transferred before heterotopic heart transplantation to assess allograft survival. RESULTS DBA/2J pDCs were more potent in inducing Foxp3 in B6 T cells than the reverse combination, correlating with survival of the kidney allografts. Foxp3 induction by pDCs in vitro was dependent on pDC viability, immaturity, and class II MHC mismatch and blocked by MEK/ERK and NFκB inhibition. pDC-induced Foxp3 T cells suppressed proliferation of B6 T cells in vitro, and adoptive transfer into B6 recipients 2 weeks before heterotopic DBA/2J heart transplantation resulted in prolonged allograft survival. CONCLUSIONS These data suggest that pDC-induced regulatory T cells are dependent on downstream signaling effects and on strain-dependent, MHC class II disparity with naive T cells, which may explain organ- and strain-specific differences in spontaneous tolerance.
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Klocperk A, Petruzelkova L, Pavlikova M, Rataj M, Kayserova J, Pruhova S, Kolouskova S, Sklenarova J, Parackova Z, Sediva A, Sumnik Z. Changes in innate and adaptive immunity over the first year after the onset of type 1 diabetes. Acta Diabetol 2020; 57:297-307. [PMID: 31570993 DOI: 10.1007/s00592-019-01427-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/19/2019] [Indexed: 12/11/2022]
Abstract
AIMS The development of the immune phenotype in patients with type 1 diabetes (T1D) during the first year following disease onset remains poorly described, and studies analysing the longitudinal development of a complex set of immunological and metabolic parameters are missing. Thus, we aim to provide such complex view in a cohort of 38 children with new onset T1D who were prospectively followed for 1 year. METHODS All subjects were tested for a set of immunological parameters (complete blood count; serum immunoglobulins; and T, B and dendritic cells), HbA1c and daily insulin dose at baseline and at 6 and 12 months after T1D diagnosis. A mixed meal tolerance test was administered to each of the subjects 12 months after diagnosis, and the C-peptide area under the curve (AUC) was noted and was then tested for association with all immunological parameters. RESULTS A gradual decrease in leukocytes (adjusted p = 0.0012) was reflected in a significant decrease in neutrophils (adjusted p = 0.0061) over the post-onset period, whereas Tregs (adjusted p = 0.0205) and originally low pDCs (adjusted p < 0.0001) increased. The expression of the receptor for BAFF (BAFFR) on B lymphocytes (adjusted p = 0.0127) markedly increased after onset. No immunological parameters were associated with C-peptide AUC; however, we observed a linear increase in C-peptide AUC with the age of the patients (p < 0.0001). CONCLUSIONS Our study documents substantial changes in the innate and adaptive immune system over the first year after disease diagnosis but shows no association between immunological parameters and residual beta-cell activity. The age of patients remains the best predictor of C-peptide AUC, whereas the role of the immune system remains unresolved.
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Affiliation(s)
- Adam Klocperk
- Department of Immunology, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic.
| | - Lenka Petruzelkova
- Department of Pediatrics, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Marketa Pavlikova
- Department of Probability and Mathematical Statistics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - Michal Rataj
- Department of Immunology, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Jana Kayserova
- Department of Immunology, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Stepanka Pruhova
- Department of Pediatrics, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Stanislava Kolouskova
- Department of Pediatrics, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Jana Sklenarova
- Department of Pediatrics, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Zuzana Parackova
- Department of Immunology, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Anna Sediva
- Department of Immunology, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
| | - Zdenek Sumnik
- Department of Pediatrics, 2nd Faculty of Medicine, Charles University and University Hospital in Motol, Prague, Czech Republic
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9
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Neeland MR, Andorf S, Manohar M, Dunham D, Lyu SC, Dang TD, Peters RL, Perrett KP, Tang MLK, Saffery R, Koplin JJ, Nadeau KC. Mass cytometry reveals cellular fingerprint associated with IgE+ peanut tolerance and allergy in early life. Nat Commun 2020; 11:1091. [PMID: 32107388 PMCID: PMC7046671 DOI: 10.1038/s41467-020-14919-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 02/11/2020] [Indexed: 01/22/2023] Open
Abstract
IgE-mediated peanut allergic is common, often serious, and usually lifelong. Not all individuals who produce peanut-specific IgE will react upon consumption of peanut and can eat the food without adverse reactions, known as sensitized tolerance. Here, we employ high-dimensional mass cytometry to define the circulating immune cell signatures associated with sensitized tolerance and clinical allergy to peanut in the first year of life. Key features of clinical peanut allergic are increased frequency of activated B cells (CD19hiHLADRhi), overproduction of TNFα and increased frequency of peanut-specific memory CD4 T cells. Infants with sensitized tolerance display reduced frequency but hyper-responsive naive CD4 T cells and an increased frequency of plasmacytoid dendritic cells. This work demonstrates the utility and power of high-dimensional mass cytometry analysis to interrogate the cellular interactions that are associated with allergic sensitization and clinical food allergy in the first year of life.
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Affiliation(s)
- Melanie R Neeland
- Murdoch Children's Research Institute, Parkville, VIC, Australia. .,Department of Pediatrics, The University of Melbourne, Parkville, VIC, Australia.
| | - Sandra Andorf
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA.,Divisions of Biomedical Informatics and Allergy & Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Monali Manohar
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Diane Dunham
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Shu-Chen Lyu
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Thanh D Dang
- Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Pediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Rachel L Peters
- Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Pediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Kirsten P Perrett
- Murdoch Children's Research Institute, Parkville, VIC, Australia.,School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
| | - Mimi L K Tang
- Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Pediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Richard Saffery
- Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Pediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Jennifer J Koplin
- Murdoch Children's Research Institute, Parkville, VIC, Australia.,Department of Pediatrics, The University of Melbourne, Parkville, VIC, Australia.,School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA.
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10
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Why some organ allografts are tolerated better than others: new insights for an old question. Curr Opin Organ Transplant 2020; 24:49-57. [PMID: 30516578 DOI: 10.1097/mot.0000000000000594] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE OF REVIEW There is great variability in how different organ allografts respond to the same tolerance induction protocol. Well known examples of this phenomenon include the protolerogenic nature of kidney and liver allografts as opposed to the tolerance-resistance of heart and lung allografts. This suggests there are organ-specific factors which differentially drive the immune response following transplantation. RECENT FINDINGS The specific cells or cell products that make one organ allograft more likely to be accepted off immunosuppression than another are largely unknown. However, new insights have been made in this area recently. SUMMARY The current review will focus on the organ-intrinsic factors that contribute to the organ-specific differences observed in tolerance induction with a view to developing therapeutic strategies to better prevent organ rejection and promote tolerance induction of all organs.
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11
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Magni G, Tatini F, Bacci S, Paroli G, De Siena G, Cicchi R, Pavone FS, Pini R, Rossi F. Blue LED light modulates inflammatory infiltrate and improves the healing of superficial wounds. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2019; 36:166-168. [PMID: 31769893 DOI: 10.1111/phpp.12527] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/30/2019] [Accepted: 11/22/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Giada Magni
- Institute of Applied Physics, National Research Council (IFAC-CNR), Sesto Fiorentino, Italy
| | - Francesca Tatini
- Institute of Applied Physics, National Research Council (IFAC-CNR), Sesto Fiorentino, Italy
| | - Stefano Bacci
- Department of Biology, University of Florence, Florence, Italy
| | - Gaia Paroli
- Department of Biology, University of Florence, Florence, Italy
| | - Gaetano De Siena
- Institute of Applied Physics, National Research Council (IFAC-CNR), Sesto Fiorentino, Italy
| | - Riccardo Cicchi
- National Institute of Optics, National Research Council (INO-CNR), Florence, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Sesto Fiorentino, Italy
| | - Francesco S Pavone
- National Institute of Optics, National Research Council (INO-CNR), Florence, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Sesto Fiorentino, Italy.,Department of Physics, University of Florence, Sesto Fiorentino, Italy
| | - Roberto Pini
- Institute of Applied Physics, National Research Council (IFAC-CNR), Sesto Fiorentino, Italy
| | - Francesca Rossi
- Institute of Applied Physics, National Research Council (IFAC-CNR), Sesto Fiorentino, Italy
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12
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Lužnik Z, Kopitar AN, Lapajne L, Pižem J, Ferrari S, Ihan A, Hawlina M, Schollmayer P. Identification and characterization of dendritic cell subtypes in preserved and cultured cadaveric human corneolimbal tissue on amniotic membrane. Acta Ophthalmol 2019; 97:e184-e193. [PMID: 30182472 DOI: 10.1111/aos.13854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 05/20/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE Rejection is the leading cause of failure of limbal allogafts. Resident dendritic cell (DC) maturation plays a critical role in host allosensitization. There are two lineages: myeloid (mDC) and lymphoid (pDC), with different biological properties. The aim was to analyse the distribution of DC subtypes in limbal explant cultures on amniotic membrane (AM), cultivated on either the epithelial or stromal side and to compare the results with directly isolated cells from cadaveric whole corneoscleral tissue divided into specific areas. METHODS The expression of CD11c (mDC), CD303/CD123 (pDC) and costimulatory molecules CD80, CD86 and activation markers HLA-DR, CD83 was investigated by flow cytometry. Additionally, the corneal epithelium marker CK12 and ABCB5, a new epithelial stem cell marker, were investigated. RESULTS Cells positive for pDC and mDC markers were found in all examined areas, with a nonsignificant prevalence of pDC. In limbal explant cultures on AM, the percentage of pDC and mDC was similar, with no statistically significant difference between cultures on epithelial or stromal sides of AM. However, with ex vivo limbal explant cultivation on AM, the pDC content declined significantly (p < 0.05) and the ABCB5 marker was likewise statistically significantly reduced. CONCLUSION This is the first study to characterize the distribution of pDC and mDC subsets in cultured and noncultured human corneolimbal tissue. Additionally, ABCB5 positive cells were identified. These findings might be important for future strategies, allowing preparation of corneolimbal allografts with optimal stem cell content for a longer lasting therapeutic effect.
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Affiliation(s)
- Zala Lužnik
- Eye Hospital University Medical Centre Ljubljana Slovenia
| | - Andreja Nataša Kopitar
- Institute of Microbiology and Immunology Faculty of Medicine University of Ljubljana Ljubljana Slovenia
| | - Luka Lapajne
- Eye Hospital University Medical Centre Ljubljana Slovenia
| | - Jože Pižem
- Institute of Pathology Faculty of Medicine University of Ljubljana Ljubljana Slovenia
| | | | - Alojz Ihan
- Institute of Microbiology and Immunology Faculty of Medicine University of Ljubljana Ljubljana Slovenia
| | - Marko Hawlina
- Eye Hospital University Medical Centre Ljubljana Slovenia
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13
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Kawano T, Ouchi R, Ishigaki T, Masuda C, Miyasaka T, Ohkawara Y, Ohta N, Takayanagi M, Takahashi T, Ohno I. Increased Susceptibility to Allergic Asthma with the Impairment of Respiratory Tolerance Caused by Psychological Stress. Int Arch Allergy Immunol 2018; 177:1-15. [PMID: 29874662 DOI: 10.1159/000488289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 03/09/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Bronchial asthma is characterized by type 2 T helper (Th2) cell inflammation, essentially due to a breakdown of immune tolerance to harmless environmental allergens. Etiologically, experiences of psychological stress can be associated with a heightened prevalence of asthma. However, the mechanisms underlying stress-related asthma development are unclear. In this study, we examined whether psychological stress increases susceptibility to allergic asthma by downregulating immune tolerance. METHODS Female BALB/c mice were sensitized with ovalbumin/alum, followed by ovalbumin inhalation. Ovalbumin inhalation induced immune tolerance before sensitization occurred. Some mice were exposed to restraint stress during tolerance induction or sensitization. Asthma development was evaluated by airway responsiveness, inflammation, cytokine expression, and IgE synthesis. Sensitization was evaluated by measuring proliferation and cytokine production by splenocytes. The effects of stress exposure on the numbers and functions of dendritic cells and regulatory T (Treg) cells in bronchial lymph nodes and spleens were evaluated. To investigate the role of endogenous glucocorticoid in inhibiting immune tolerance after stress exposure, we examined the effects of (i) a glucocorticoid-receptor antagonist administered prior to stress exposure, and (ii) exogenous gluco-corticoid (instead of stress exposure). RESULTS Asthmatic responses and Th2-biased sensitization, which were suppressed in tolerized mice, re-emerged in tolerized mice stressed during tolerance induction in association with decreased tolerogenic dendritic and Treg cell numbers. The effects of stress exposure on tolerized mice were abolished by administering a glucocorticoid-receptor antagonist and reproduced by administering exogenous glucocorticoid without stress. CONCLUSIONS Our findings suggested that psychological stress can potentially increase allergic asthma susceptibility by inhibiting immune tolerance.
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Affiliation(s)
- Tasuku Kawano
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Ryusuke Ouchi
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Takahiro Ishigaki
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Chiaki Masuda
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Tomomitsu Miyasaka
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Yuichi Ohkawara
- Division of Experimental Allergy and Immunology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical Pharmaceutical University, Sendai, Japan
| | - Nobuo Ohta
- Division of Otorhinolaryngology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Motoaki Takayanagi
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Tomoko Takahashi
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Isao Ohno
- Center for Medical Education, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
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14
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Bohmwald K, Espinoza JA, Pulgar RA, Jara EL, Kalergis AM. Functional Impairment of Mononuclear Phagocyte System by the Human Respiratory Syncytial Virus. Front Immunol 2017; 8:1643. [PMID: 29230219 PMCID: PMC5712212 DOI: 10.3389/fimmu.2017.01643] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/10/2017] [Indexed: 12/18/2022] Open
Abstract
The mononuclear phagocyte system (MPS) comprises of monocytes, macrophages (MΦ), and dendritic cells (DCs). MPS is part of the first line of immune defense against a wide range of pathogens, including viruses, such as the human respiratory syncytial virus (hRSV). The hRSV is an enveloped virus that belongs to the Pneumoviridae family, Orthopneumovirus genus. This virus is the main etiological agent causing severe acute lower respiratory tract infection, especially in infants, children and the elderly. Human RSV can cause bronchiolitis and pneumonia and it has also been implicated in the development of recurrent wheezing and asthma. Monocytes, MΦ, and DCs significantly contribute to acute inflammation during hRSV-induced bronchiolitis and asthma exacerbation. Furthermore, these cells seem to be an important component for the association between hRSV and reactive airway disease. After hRSV infection, the first cells encountered by the virus are respiratory epithelial cells, alveolar macrophages (AMs), DCs, and monocytes in the airways. Because AMs constitute the predominant cell population at the alveolar space in healthy subjects, these cells work as major innate sentinels for the recognition of pathogens. Although adaptive immunity is crucial for viral clearance, AMs are required for the early immune response against hRSV, promoting viral clearance and controlling immunopathology. Furthermore, exposure to hRSV may affect the phagocytic and microbicidal capacity of monocytes and MΦs against other infectious agents. Finally, different studies have addressed the roles of different DC subsets during infection by hRSV. In this review article, we discuss the role of the lung MPS during hRSV infection and their involvement in the development of bronchiolitis.
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Affiliation(s)
- Karen Bohmwald
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Janyra A Espinoza
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Raúl A Pulgar
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Evelyn L Jara
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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15
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Audiger C, Rahman MJ, Yun TJ, Tarbell KV, Lesage S. The Importance of Dendritic Cells in Maintaining Immune Tolerance. THE JOURNAL OF IMMUNOLOGY 2017; 198:2223-2231. [PMID: 28264998 DOI: 10.4049/jimmunol.1601629] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 12/11/2016] [Indexed: 12/30/2022]
Abstract
Immune tolerance is necessary to prevent the immune system from reacting against self, and thus to avoid the development of autoimmune diseases. In this review, we discuss key findings that position dendritic cells (DCs) as critical modulators of both thymic and peripheral immune tolerance. Although DCs are important for inducing both immunity and tolerance, increased autoimmunity associated with decreased DCs suggests their nonredundant role in tolerance induction. DC-mediated T cell immune tolerance is an active process that is influenced by genetic variants, environmental signals, as well as the nature of the specific DC subset presenting Ag to T cells. Answering the many open questions with regard to the role of DCs in immune tolerance could lead to the development of novel therapies for the prevention of autoimmune diseases.
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Affiliation(s)
- Cindy Audiger
- Department of Immunology-Oncology, Maisonneuve-Rosemont Hospital, Montreal, Quebec H1T 2M4, Canada.,Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - M Jubayer Rahman
- Immune Tolerance Section, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Tae Jin Yun
- Laboratory of Cellular Physiology and Immunology, Clinical Research Institute of Montreal, Montreal, Quebec H2W 1R7, Canada; and.,Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Kristin V Tarbell
- Immune Tolerance Section, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Sylvie Lesage
- Department of Immunology-Oncology, Maisonneuve-Rosemont Hospital, Montreal, Quebec H1T 2M4, Canada; .,Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
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16
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Girkin JL, Hatchwell LM, Collison AM, Starkey MR, Hansbro PM, Yagita H, Foster PS, Mattes J. TRAIL signaling is proinflammatory and proviral in a murine model of rhinovirus 1B infection. Am J Physiol Lung Cell Mol Physiol 2016; 312:L89-L99. [PMID: 27836899 DOI: 10.1152/ajplung.00200.2016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 11/04/2016] [Indexed: 02/07/2023] Open
Abstract
the aim of this study is to elucidate the role of TRAIL during rhinovirus (RV) infection in vivo. Naïve wild-type and tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-deficient (Tnfsf10-/-) BALB/c mice were infected intranasally with RV1B. In separate experiments, Tnfsf10-/- mice were sensitized and challenged via the airway route with house dust mite (HDM) to induce allergic airways disease and then challenged with RVIB or UV-RVIB. Airway hyperreactivity (AHR) was invasively assessed as total airways resistance in response to increasing methacholine challenge and inflammation was assessed in bronchoalveolar lavage fluid at multiple time points postinfection. Chemokines were quantified by ELISA of whole lung lysates and viral load was determined by quantitative RT-PCR and tissue culture infective dose (TCID50). Human airway epithelial cells (BEAS2B) were infected with RV1B and stimulated with recombinant TRAIL or neutralizing anti-TRAIL antibodies and viral titer assessed by TCID50 HDM-challenged Tnfsf10-/- mice were protected against RV-induced AHR and had suppressed cellular infiltration in the airways upon RV infection. Chemokine C-X-C-motif ligand 2 (CXCL2) production was suppressed in naïve Tnfsf10-/- mice infected with RV1B, with less RV1B detected 24 h postinfection. This was associated with reduced apoptotic cell death and a reduction of interferon (IFN)-λ2/3 but not IFN-α or IFN-β. TRAIL stimulation increased, whereas anti-TRAIL antibodies reduced viral replication in RV1B-infected BEAS2B cells in vitro. In conclusion, TRAIL promotes RV-induced AHR, inflammation and RV1B replication, implicating this molecule and its downstream signaling pathways as a possible target for the amelioration of RV1B-induced allergic and nonallergic lung inflammation and AHR.
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Affiliation(s)
- Jason L Girkin
- Experimental and Translational Respiratory Medicine Group, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Luke M Hatchwell
- Experimental and Translational Respiratory Medicine Group, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Priority Research Centre GrowUpWell, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Adam M Collison
- Experimental and Translational Respiratory Medicine Group, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Priority Research Centre GrowUpWell, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Priority Research Centre GrowUpWell, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Microbiology, Asthma, and Airways Research Group, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Microbiology, Asthma, and Airways Research Group, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Hideo Yagita
- Department of Immunology, Juntendo University, School of Medicine, Tokyo, Japan; and
| | - Paul S Foster
- Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Joerg Mattes
- Experimental and Translational Respiratory Medicine Group, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia; .,Priority Research Centre GrowUpWell, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Paediatric Respiratory and Sleep Medicine Unit, John Hunter Children's Hospital, Newcastle, Australia
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17
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Histopathological Analysis of Rat Hepatotoxicity Based on Macrophage Functions: in Particular, an Analysis for Thioacetamide-induced Hepatic Lesions. Food Saf (Tokyo) 2016; 4:61-73. [PMID: 32231908 DOI: 10.14252/foodsafetyfscj.2016012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/30/2016] [Indexed: 12/21/2022] Open
Abstract
Hepatic macrophages play an important role in homeostasis. The functional abnormalities of hepatic macrophages primarily or secondarily influence chemically induced hepatotoxicity. However, the evaluation system based on their functions has not yet been established. Recently, a new concept (M1-/M2-macrophage polarization) was proposed; M1-macropahges are induced by INF-γ, and show high phagocytosis/tissue damage, whereas M2-macropahges are induced by IL-4 and play roles in reparative fibrosis by releasing IL-10 and TGF-β1. In hepatogenesis, CD68-expressing M1-macrophages predominantly exist in embryos; in neonates, in contrast, CD163-/CD204-expressing M2-macrophages appear along the sinusoids and mature as Kupffer cells. Activated Kupffer cells by liposome decrease AST and ALT values, whereas AST and ALT values are increased under Kupffer cells depleted with clodronate treatment. Since Kupffer cells may be involved in clearance of liver enzymes, macrophage condition should be taken into consideration when hepatotoxicity is analyzed. In TAA-induced acute hepatic lesions, INF-γ, TNF-α and IL-6 for M1-factors and IL-4 for M2-factors are already increased before histopathological change; the appearance of CD68-expressing M1-macrophages and CD163-expressing M2-macrophages follows in injured centrilobular lesions, and TGF-β1 and IL-10 are increased for reparative fibrosis. CD68-expressing M1-macrophages co-express MHC class II and Iba-1, whereas CD163-expressing M2-macrophages also express CD204 and Galectin-3. Under macrophage depletion by clodoronate, TAA-treated rat livers show prolonged coagulation necrosis of hepatocytes, and then develop dystrophic calcification without reparative fibrosis. The depletion of hepatic macrophages influences hepatic lesion development. Collectively, a histopathological analysis method for hepatotoxicity according to M1-/M2-macrophage polarization would lead to the refinement of hazard characterization of chemicals in food and feed.
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18
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Abstract
PURPOSE OF REVIEW When it comes to tolerance induction, kidney allografts behave differently from heart allografts that behave differently from lung allografts. Here, we examine how and why different organ allografts respond differently to the same tolerance induction protocol. RECENT FINDINGS Allograft tolerance has been achieved in experimental and clinical kidney transplantation. Inducing tolerance in experimental recipients of heart and lung allografts has, however, proven to be more challenging. New protocols being developed in nonhuman primates based on mixed chimerism and cotransplantation of tolerogenic organs may provide mechanistic insights to help overcome these challenges. SUMMARY Tolerance induction protocols that are successful in patients transplanted with 'tolerance-prone' organs such as kidneys and livers will most likely not succeed in recipients of 'tolerance-resistant' organs such as hearts and lungs. Separate clinical trials using more robust tolerance protocols will be required to achieve tolerance in heart and lung recipients.
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19
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Stoll P, Ulrich M, Bratke K, Garbe K, Virchow JC, Lommatzsch M. Imbalance of dendritic cell co-stimulation in COPD. Respir Res 2015; 16:19. [PMID: 25775429 PMCID: PMC4335663 DOI: 10.1186/s12931-015-0174-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 01/19/2015] [Indexed: 02/01/2023] Open
Abstract
Background Dendritic cells (DCs) control immunity and play a role in the pathogenesis of chronic obstructive pulmonary disease (COPD). However, the expression of function-associated surface molecules on circulating DCs in COPD is unknown. Methods Four-colour flow cytometry was used to compare blood DC surface molecules of 54 patients with COPD (median age: 59 years; median FEV1: 38% predicted, median CAT score: 24) with two age-matched control groups with normal lung function: 21 current smokers and 21 never-smokers. Results Concentrations of plasmacytoid DCs (pDCs) and myeloid DCs (mDCs) and the mDC/pDC ratio did not differ between the groups. The increased expression of BDCA-1, BDCA-3, CD86 and CCR5 on mDCs in patients with COPD did not significantly differ from smokers with normal lung function. In contrast, COPD was specifically characterised by a decreased expression of the anti-inflammatory co-stimulatory molecule PD-L1 on pDCs and an increased expression of the pro-inflammatory co-stimulatory molecule OX40 ligand (OX40L) on mDCs. These changes were not confined to patients with elevated systemic inflammation markers (leukocytes, c-reactive protein, interleukin-6, fibrinogen). The ratio of OX40L to PD-L1 expression (OX40L/PD-L1 ratio), a quantitative measure of imbalanced DC co-stimulation, correlated with the severity of pulmonary emphysema in patients with COPD. Conclusion An imbalance of DC co-stimulation might contribute to the pathogenesis of COPD. Electronic supplementary material The online version of this article (doi:10.1186/s12931-015-0174-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Paul Stoll
- Abteilung für Pneumologie und Internistische Intensivmedizin, Zentrum für Innere Medizin, Universität Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - Martin Ulrich
- Abteilung für Pneumologie und Internistische Intensivmedizin, Zentrum für Innere Medizin, Universität Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - Kai Bratke
- Abteilung für Pneumologie und Internistische Intensivmedizin, Zentrum für Innere Medizin, Universität Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - Katharina Garbe
- Abteilung für Pneumologie und Internistische Intensivmedizin, Zentrum für Innere Medizin, Universität Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - J Christian Virchow
- Abteilung für Pneumologie und Internistische Intensivmedizin, Zentrum für Innere Medizin, Universität Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - Marek Lommatzsch
- Abteilung für Pneumologie und Internistische Intensivmedizin, Zentrum für Innere Medizin, Universität Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
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20
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Tahoori MT, Pourfathollah AA, Soleimani M, Vasheghani-Farahani E, Mohammadzadeh A, Amari A, Hashemi SM, Mossahebi-Mohammadi M. Fibroblasts feeder niche and Flt3 Ligand as a novel inducer of plasmacytoid dendritic cells development in vitro. Int Immunopharmacol 2014; 24:474-480. [PMID: 25445955 DOI: 10.1016/j.intimp.2014.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 10/28/2014] [Accepted: 10/29/2014] [Indexed: 10/24/2022]
Abstract
Plasmacytoid dendritic cell (pDC), plays central role in antiviral immunity. The aim of this study was to assess the effect of Flt3 ligand (FL) alone or with L929 fibroblast feeder or L929 conditioned media on differentiation of mouse bone marrow (BM) cells into pDC in vitro. Murine BM cells were cultured with FL or with L929 or conditioned media for 9days. The differentiated cells were analyzed using flow cytometry for PDCA-1, B220 and CXCR4. The relative expression of Stat3, CXCR4, CXCR7, IFN-β, TGF-β and Runx2 in differentiated cells determined by real time PCR. The development of pDC showed up to 19% increase after co-culture of BM cells with fibroblast feeder. Upregulation of Stat3, Runx2 and CXCR4 due to the presence of fibroblast feeder with FL in culture results in improved pDC development. Furthermore, 30% L929 supernatant along with Flt3 ligand was able to derive pDC up to 8.9% in comparison with FL alone, which was 6.6% in vitro. Thus, for the first time we introduced L929 fibroblast feeder as a niche producer of M-CSF and probably other growth factors and chemokines, which promotes the development of pDC in vitro along with FL, similar to in vivo niche.
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Affiliation(s)
- Mohammad Taher Tahoori
- Department of Immunology, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Ali Akbar Pourfathollah
- Department of Immunology, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran.
| | - Masoud Soleimani
- Department of Stem Cell Biology, Stem Cell Technology Research Center, Tehran Iran; Department of Hematology, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | | | - Adel Mohammadzadeh
- Department of Microbiology, Immunology and Genetics, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Afshin Amari
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Mahmoud Hashemi
- Department of Immunology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Sinclair J, Reeves M. The intimate relationship between human cytomegalovirus and the dendritic cell lineage. Front Microbiol 2014; 5:389. [PMID: 25147545 PMCID: PMC4124589 DOI: 10.3389/fmicb.2014.00389] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 07/11/2014] [Indexed: 11/13/2022] Open
Abstract
Primary infection of healthy individuals with human cytomegalovirus (HCMV) is normally asymptomatic but results in the establishment of a lifelong infection of the host. One important cellular reservoir of HCMV latency is the CD34+ haematopoietic progenitor cells resident in the bone marrow. Viral gene expression is highly restricted in these cells with an absence of viral progeny production. However, cellular differentiation into mature myeloid cells is concomitant with the induction of a full lytic transcription program, DNA replication and, ultimately, the production of infectious viral progeny. Such reactivation of HCMV is a major cause of morbidity and mortality in a number of immune-suppressed patient populations. Our current understanding of HCMV carriage and reactivation is that cellular differentiation of the CD34+ progenitor cells through the myeloid lineage, resulting in terminal differentiation to either a macrophage or dendritic cell (DC) phenotype, is crucial for the reactivation event. In this mini-review, we focus on the interaction of HCMV with DCs, with a particular emphasis on their role in reactivation, and discuss how the critical regulation of viral major immediate-early gene expression appears to be delicately entwined with the activation of cellular pathways in differentiating DCs. Furthermore, we also explore the possible immune consequences associated with reactivation in a professional antigen presenting cell and potential countermeasures HCMV employs to abrogate these.
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Affiliation(s)
- John Sinclair
- Department of Medicine, University of Cambridge - Addenbrooke's Hospital Cambridge, UK
| | - Matthew Reeves
- Institute of Immunity and Transplantation, University College London - Royal Free Hospital Hampstead, London, UK
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Tonsho M, Michel S, Ahmed Z, Alessandrini A, Madsen JC. Heart transplantation: challenges facing the field. Cold Spring Harb Perspect Med 2014; 4:4/5/a015636. [PMID: 24789875 DOI: 10.1101/cshperspect.a015636] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
There has been significant progress in the field of heart transplantation over the last 45 years. The 1-yr survival rates following heart transplantation have improved from 30% in the 1970s to almost 90% in the 2000s. However, there has been little change in long-term outcomes. This is mainly due to chronic rejection, malignancy, and the detrimental side effects of chronic immunosuppression. In addition, over the last decade, new challenges have arisen such as increasingly complicated recipients and antibody-mediated rejection. Most, if not all, of these obstacles to long-term survival could be prevented or ameliorated by the induction of transplant tolerance wherein the recipient's immune system is persuaded not to mount a damaging immune response against donor antigens, thus eliminating the need for chronic immunosuppression. However, the heart, as opposed to other allografts like kidneys, appears to be a tolerance-resistant organ. Understanding why organs like kidneys and livers are prone to tolerance induction, whereas others like hearts and lungs are tolerance-resistant, could aid in our attempts to achieve long-term, immunosuppression-free survival in human heart transplant recipients. It could also advance the field of pig-to-human xenotransplantation, which, if successful, would eliminate the organ shortage problem. Of course, there are alternative futures to the field of heart transplantation that may include the application of total mechanical support, stem cells, or bioengineered whole organs. Which modality will be the first to reach the ultimate goal of achieving unlimited, long-term, circulatory support with minimal risk to longevity or lifestyle is unknown, but significant progress in being made in each of these areas.
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Affiliation(s)
- Makoto Tonsho
- MGH Transplantation Center, Massachusetts General Hospital, Boston, Massachusetts 02114
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23
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Chaudhary B, Khaled YS, Ammori BJ, Elkord E. Neuropilin 1: function and therapeutic potential in cancer. Cancer Immunol Immunother 2014; 63:81-99. [PMID: 24263240 PMCID: PMC11028473 DOI: 10.1007/s00262-013-1500-0] [Citation(s) in RCA: 159] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 11/10/2013] [Indexed: 12/15/2022]
Abstract
Neuropilin 1 (NRP1) is a transmembrane glycoprotein that acts as a co-receptor for a number of extracellular ligands including class III/IV semaphorins, certain isoforms of vascular endothelial growth factor and transforming growth factor beta. An exact understanding of the role of NRP1 in the immune system has been obscured by the differences in NRP1 expression observed between mice and humans. In mice, NRP1 is selectively expressed on thymic-derived Tregs and greatly enhances immunosuppressive function. In humans, NRP1 is expressed on plasmacytoid dendritic cells (pDCs) where it aids in priming immune responses and on a subset of T regulatory cells (Tregs) isolated from secondary lymph nodes. Preliminary studies that show NRP1 expression on T cells confers enhanced immunosuppressive activity. However, the mechanism by which this activity is mediated remains unclear. NRP1 expression has also been identified on activated T cells and Tregs isolated from inflammatory microenvironments, suggesting NRP1 might represent a novel T cell activation marker. Of clinical interest, NRP1 may enhance Treg tumour infiltration and a decrease in NRP1+ Tregs correlates with successful chemotherapy, suggesting a specific role for NRP1 in cancer pathology. As a therapeutic target, NRP1 allows simultaneous targeting of NRP1-expressing tumour vasculature, NRP1+ Tregs and pDCs. With the development of anti-NRP1 monoclonal antibodies and cell-penetrating peptides, NRP1 represents a promising new target for cancer therapies. This paper reviews current knowledge on the role and function of NRP1 in Tregs and pDCs, both in physiological and cancer settings, as well as its potential as a therapeutic target in cancer.
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Affiliation(s)
- Belal Chaudhary
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, The Crescent, Peel Building G25, Manchester, M5 4WT UK
| | - Yazan S. Khaled
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, The Crescent, Peel Building G25, Manchester, M5 4WT UK
- Institutes of Cancer, Inflammation & Repair, University of Manchester, Manchester, UK
| | - Basil J. Ammori
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, The Crescent, Peel Building G25, Manchester, M5 4WT UK
- Institutes of Cancer, Inflammation & Repair, University of Manchester, Manchester, UK
| | - Eyad Elkord
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, The Crescent, Peel Building G25, Manchester, M5 4WT UK
- Institutes of Cancer, Inflammation & Repair, University of Manchester, Manchester, UK
- College of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al Ain, United Arab Emirates
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24
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Gordon JR, Ma Y, Churchman L, Gordon SA, Dawicki W. Regulatory dendritic cells for immunotherapy in immunologic diseases. Front Immunol 2014; 5:7. [PMID: 24550907 PMCID: PMC3907717 DOI: 10.3389/fimmu.2014.00007] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 01/07/2014] [Indexed: 12/12/2022] Open
Abstract
We recognize well the abilities of dendritic cells to activate effector T cell (Teff cell) responses to an array of antigens and think of these cells in this context as pre-eminent antigen-presenting cells, but dendritic cells are also critical to the induction of immunologic tolerance. Herein, we review our knowledge on the different kinds of tolerogenic or regulatory dendritic cells that are present or can be induced in experimental settings and humans, how they operate, and the diseases in which they are effective, from allergic to autoimmune diseases and transplant tolerance. The primary conclusions that arise from these cumulative studies clearly indicate that the agent(s) used to induce the tolerogenic phenotype and the status of the dendritic cell at the time of induction influence not only the phenotype of the dendritic cell, but also that of the regulatory T cell responses that they in turn mobilize. For example, while many, if not most, types of induced regulatory dendritic cells lead CD4+ naïve or Teff cells to adopt a CD25+Foxp3+ Treg phenotype, exposure of Langerhans cells or dermal dendritic cells to vitamin D leads in one case to the downstream induction of CD25+Foxp3+ regulatory T cell responses, while in the other to Foxp3− type 1 regulatory T cells (Tr1) responses. Similarly, exposure of human immature versus semi-mature dendritic cells to IL-10 leads to distinct regulatory T cell outcomes. Thus, it should be possible to shape our dendritic cell immunotherapy approaches for selective induction of different types of T cell tolerance or to simultaneously induce multiple types of regulatory T cell responses. This may prove to be an important option as we target diseases in different anatomic compartments or with divergent pathologies in the clinic. Finally, we provide an overview of the use and potential use of these cells clinically, highlighting their potential as tools in an array of settings.
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Affiliation(s)
- John R Gordon
- Department of Medicine, University of Saskatchewan , Saskatoon, SK , Canada
| | - Yanna Ma
- Department of Medicine, University of Saskatchewan , Saskatoon, SK , Canada
| | - Laura Churchman
- Department of Medicine, University of Saskatchewan , Saskatoon, SK , Canada
| | - Sara A Gordon
- Department of Medicine, University of Saskatchewan , Saskatoon, SK , Canada
| | - Wojciech Dawicki
- Department of Medicine, University of Saskatchewan , Saskatoon, SK , Canada
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van der Merwe M, Abdelsamed HA, Seth A, Ong T, Vogel P, Pillai AB. Recipient myeloid-derived immunomodulatory cells induce PD-1 ligand-dependent donor CD4+Foxp3+ regulatory T cell proliferation and donor-recipient immune tolerance after murine nonmyeloablative bone marrow transplantation. THE JOURNAL OF IMMUNOLOGY 2013; 191:5764-76. [PMID: 24190658 DOI: 10.4049/jimmunol.1302191] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We showed previously that nonmyeloablative total lymphoid irradiation/rabbit anti-thymocyte serum (TLI/ATS) conditioning facilitates potent donor-recipient immune tolerance following bone marrow transplantation (BMT) across MHC barriers via recipient invariant NKT (iNKT) cell-derived IL-4-dependent expansion of donor Foxp3(+) naturally occurring regulatory T cells (nTregs). In this study, we report a more specific mechanism. Wild-type (WT) BALB/c (H-2(d)) hosts were administered TLI/ATS and BMT from WT or STAT6(-/-) C57BL/6 (H-2(b)) donors. Following STAT6(-/-) BMT, donor nTregs demonstrated no loss of proliferation in vivo, indicating that an IL-4-responsive population in the recipient, rather than the donor, drives donor nTreg proliferation. In graft-versus-host disease (GVHD) target organs, three recipient CD11b(+) cell subsets (Gr-1(high)CD11c(-), Gr-1(int)CD11c(-), and Gr-1(low)CD11c(+)) were enriched early after TLI/ATS + BMT versus total body irradiation/ATS + BMT. Gr-1(low)CD11c(+) cells induced potent H-2K(b+)CD4(+)Foxp3(+) nTreg proliferation in vitro in 72-h MLRs. Gr-1(low)CD11c(+) cells were reduced significantly in STAT6(-/-) and iNKT cell-deficient Jα18(-/-) BALB/c recipients after TLI/ATS + BMT. Depletion of CD11b(+) cells resulted in severe acute GVHD, and adoptive transfer of WT Gr-1(low)CD11c(+) cells to Jα18(-/-) BALB/c recipients of TLI/ATS + BMT restored day-6 donor Foxp3(+) nTreg proliferation and protection from CD8 effector T cell-mediated GVHD. Blockade of programmed death ligand 1 and 2, but not CD40, TGF-β signaling, arginase 1, or iNOS, inhibited nTreg proliferation in cocultures of recipient-derived Gr-1(low)CD11c(+) cells with donor nTregs. Through iNKT-dependent Th2 polarization, myeloid-derived immunomodulatory dendritic cells are expanded after nonmyeloablative TLI/ATS conditioning and allogeneic BMT, induce PD-1 ligand-dependent donor nTreg proliferation, and maintain potent graft-versus-host immune tolerance.
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Affiliation(s)
- Marie van der Merwe
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN 38105
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26
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Gerber EE, Gallo EM, Fontana SC, Davis EC, Wigley FM, Huso DL, Dietz HC. Integrin-modulating therapy prevents fibrosis and autoimmunity in mouse models of scleroderma. Nature 2013; 503:126-30. [PMID: 24107997 PMCID: PMC3992987 DOI: 10.1038/nature12614] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 08/28/2013] [Indexed: 12/13/2022]
Abstract
In systemic sclerosis (SSc), a common and aetiologically mysterious form of scleroderma (defined as pathological fibrosis of the skin), previously healthy adults acquire fibrosis of the skin and viscera in association with autoantibodies. Familial recurrence is extremely rare and causal genes have not been identified. Although the onset of fibrosis in SSc typically correlates with the production of autoantibodies, whether they contribute to disease pathogenesis or simply serve as a marker of disease remains controversial and the mechanism for their induction is largely unknown. The study of SSc is hindered by a lack of animal models that recapitulate the aetiology of this complex disease. To gain a foothold in the pathogenesis of pathological skin fibrosis, we studied stiff skin syndrome (SSS), a rare but tractable Mendelian disorder leading to childhood onset of diffuse skin fibrosis with autosomal dominant inheritance and complete penetrance. We showed previously that SSS is caused by heterozygous missense mutations in the gene (FBN1) encoding fibrillin-1, the main constituent of extracellular microfibrils. SSS mutations all localize to the only domain in fibrillin-1 that harbours an Arg-Gly-Asp (RGD) motif needed to mediate cell-matrix interactions by binding to cell-surface integrins. Here we show that mouse lines harbouring analogous amino acid substitutions in fibrillin-1 recapitulate aggressive skin fibrosis that is prevented by integrin-modulating therapies and reversed by antagonism of the pro-fibrotic cytokine transforming growth factor β (TGF-β). Mutant mice show skin infiltration of pro-inflammatory immune cells including plasmacytoid dendritic cells, T helper cells and plasma cells, and also autoantibody production; these findings are normalized by integrin-modulating therapies or TGF-β antagonism. These results show that alterations in cell-matrix interactions are sufficient to initiate and sustain inflammatory and pro-fibrotic programmes and highlight new therapeutic strategies.
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Affiliation(s)
- Elizabeth E Gerber
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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27
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Madariaga ML, Michel SG, Tasaki M, Villani V, La Muraglia GM, Sihag S, Gottschall J, Farkash EA, Shimizu A, Allan JS, Sachs DH, Yamada K, Madsen JC. Induction of cardiac allograft tolerance across a full MHC barrier in miniature swine by donor kidney cotransplantation. Am J Transplant 2013; 13:2558-66. [PMID: 24033991 PMCID: PMC3920984 DOI: 10.1111/ajt.12423] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 06/27/2013] [Accepted: 06/28/2013] [Indexed: 01/25/2023]
Abstract
We have previously shown that tolerance of kidney allografts across a full major histocompatibility complex (MHC) barrier can be induced in miniature swine by a 12-day course of high-dose tacrolimus. However, that treatment did not prolong survival of heart allografts across the same barrier. We have now tested the effect of cotransplanting an allogeneic heart and kidney from the same MHC-mismatched donor using the same treatment regimen. Heart allografts (n = 3) or heart plus kidney allografts (n = 5) were transplanted into MHC-mismatched recipients treated with high-dose tacrolimus for 12 days. As expected, all isolated heart allografts rejected by postoperative day 40. In contrast, heart and kidney allografts survived for >200 days with no evidence of rejection on serial cardiac biopsies. Heart/kidney recipients lost donor-specific responsiveness in cell-mediated lympholysis and mixed-lymphocyte reaction assays, were free of alloantibody and exhibited prolonged survival of donor, but not third-party skin grafts. Late (>100 days) removal of the kidney allografts did not cause acute rejection of the heart allografts (n = 2) and did not abrogate donor-specific unresponsiveness in vitro. While kidney-induced cardiac allograft tolerance (KICAT) has previously been demonstrated across a Class I disparity, these data demonstrate that this phenomenon can also be observed across the more clinically relevant full MHC mismatch. Elucidating the renal element(s) responsible for KICAT could provide mechanistic information relevant to the induction of tolerance in recipients of isolated heart allografts as well as other tolerance-resistant organs.
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Affiliation(s)
- M. L. Madariaga
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - S. G. Michel
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA,Department of Cardiac Surgery, Ludwig-Maximilians-Universität, Munich, Germany
| | - M. Tasaki
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - V. Villani
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - G. M. La Muraglia
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - S. Sihag
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - J. Gottschall
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - E. A. Farkash
- Department of Pathology, Massachusetts General Hospital, Boston, MA
| | - A. Shimizu
- Department of Pathology, Nippon Medical School, Tokyo, Japan
| | - J. S. Allan
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA,Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - D. H. Sachs
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - K. Yamada
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - J. C. Madsen
- Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Boston, MA,Division of Cardiac Surgery, Department of Surgery, Massachusetts General Hospital, Boston, MA,Corresponding author: Joren C. Madsen,
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Abstract
PURPOSE OF REVIEW The mechanisms of tolerance induction and maintenance remain incompletely understood and have yet to be translated to clinical practice. Advances in imaging techniques have allowed precise examination of cell interactions in the lymph node, often in real time. Herein we review evidence that lymph node structure is dynamic and controls the character of the immune response in a multistep, multiplayer dance. T-cell responses in particular can be initiated or influenced in regions beyond the canonical T-cell zone. We propose that the cortical ridge is one such region required for induction and maintenance of tolerance. RECENT FINDINGS Lymph node domains are more complex than T-cell and B-cell zones. Different domains are important for different types of immune responses. These domains are in part defined by dynamic, malleable physical structures that guide cell interactions and influence immune outcomes. SUMMARY Further probing as to how lymph node stromal cells and fibers interact with and determine the character of immune responses should yield fundamental insights into tolerance and immunity. Manipulation of lymph node structure and associated unique cell types and molecules may allow therapeutic interventions in the tolerogenic process.
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Luan YY, Dong N, Xie M, Xiao XZ, Yao YM. The significance and regulatory mechanisms of innate immune cells in the development of sepsis. J Interferon Cytokine Res 2013; 34:2-15. [PMID: 24006870 DOI: 10.1089/jir.2013.0042] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Sepsis with subsequent multiple organ dysfunction is a pronounced systemic inflammatory response to concealed or known infection and is a leading cause of death in intensive care units. The survival rate of severe sepsis and septic shock has not markedly improved in recent decades despite a great number of receptors and molecules involved in its pathogenesis have been found and taken as therapeutic targets. It is essential to thoroughly understand the host cell-mediated immunity involved in the development of sepsis and sepsis-related organ injury. Recent studies indicate that innate immune cells (such as neutrophils, macrophages, dendritic cells, T lymphocytes, regulatory T cells, and natural killer T cells) play pivotal roles in the maintenance of peripheral homeostasis and regulation of immune responses during sepsis. Therefore, an understanding of the biological significance and pathophysiological roles of different cell populations might gain novel insights into the immunoregulatory mechanisms of sepsis. In this review, we focus on major immune cells that may play potential roles in the contribution of new therapeutic approaches for sepsis.
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Affiliation(s)
- Ying-Yi Luan
- 1 Department of Microbiology and Immunology, Burns Institute, First Hospital Affiliated to the Chinese PLA General Hospital , Beijing, People's Republic of China
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Yu H, Huang X, Liu X, Jin H, Zhang G, Zhang Q, Yu J. Regulatory T cells and plasmacytoid dendritic cells contribute to the immune escape of papillary thyroid cancer coexisting with multinodular non-toxic goiter. Endocrine 2013; 44:172-81. [PMID: 23264145 DOI: 10.1007/s12020-012-9853-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 12/01/2012] [Indexed: 12/22/2022]
Abstract
Immunosuppressive lymphocytes, such as regulatory T cells (Tregs) and plasmacytoid dendritic cells (pDCs), play crucial roles in tumor escape. To investigate the roles of Tregs and pDCs in papillary thyroid cancer (PTC) plus multinodular non-toxic goiter (MNG), thyroid tissue and blood samples from 30 patients with PTC plus MNG and 30 MNG alone were analyzed for CD4(+) T cell, CD8(+) T cell, FoxP3(+) Treg, ICOS(+)FoxP3(+) Treg, and pDC numbers by immunohistochemistry (IHC), immunofluorescence, and flow cytometry. Plasma concentration of the cytokines interleukin 10 (IL-10) and transforming growth factor β (TGF-β) were measured by enzyme-linked immunosorbent assay as well. Both in thyroid tissue and peripheral blood, the numbers of Foxp3(+) Treg were significantly higher in patients with PTC plus MNG compared to patients with MNG alone; and as a prognostic marker, ICOS(+)Foxp3(+) Tregs represent a stronger predictor of disease progression than the total numbers of Foxp3(+) Tregs. Furthermore, a positive correlation between pDC and ICOS(+)Foxp3(+) Treg numbers in tissue of patients with PTC plus MNG was observed, suggesting that PTC-derived pDCs may induce the differentiation of naive CD4(+) T cells into ICOS(+)Foxp3(+)Tregs. This may be one of the mechanisms underlying tumor escape in PTC plus MNG patients. Our results suggest that Tregs and pDCs together contribute to the tumor escape in patients with PTC plus MNG.
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Affiliation(s)
- Hang Yu
- Department of Gastrointestinal and Thyroid Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, Hangzhou, 310003, Zhejiang, China
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Mitosek-Szewczyk K, Tabarkiewicz J, Wilczynska B, Lobejko K, Berbecki J, Nastaj M, Dworzanska E, Kolodziejczyk B, Stelmasiak Z, Rolinski J. Impact of cladribine therapy on changes in circulating dendritic cell subsets, T cells and B cells in patients with multiple sclerosis. J Neurol Sci 2013; 332:35-40. [PMID: 23835090 DOI: 10.1016/j.jns.2013.06.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 05/21/2013] [Accepted: 06/06/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Cladribine causes sustained reduction in peripheral T and B cell populations while sparing other immune cells. We determined two populations of dendritic cells (DCs): namely CD1c(+)/CD19(-) (myeloid DCs) and CD303(+)/CD123(+) (plasmacytoid DCs), CD19(+) B lymphocytes, CD3(+) T lymphocytes and CD4(+) or CD8(+) subpopulations in patients with multiple sclerosis after cladribine therapy. METHODS We examined 50 patients with secondary progressive multiple sclerosis (SP MS) according to McDonalds et al.'s criteria, 2001 [15]. Blood samples were collected before the initiation of cladribine therapy and after 1st, 2nd, 3th, 4th and 5th courses of treatment. DC subsets, T and B cells were analyzed by flow cytometry. RESULTS During cladribine treatment the myeloid DCs CD1c(+)/CD19(-) did not change (p=0.73175), and the plasmacytoid DCs CD303(+)/CD123(+) significantly increased (p=0.00034) which resulted in significant changes in the ratio of myeloid DCs to plasmacytoid DCs (p=0.00273). During therapy, B lymphocyte CD19(+) significantly decreased (p=0.00005) and significant changes in CD4(+) cells (p=0.00191), changes in CD8(+) cells (p=0.05760) and significant changes in CD3(+) (p=0.01822) were found. CONCLUSIONS We noticed significant trend to increase the CD303(+) circulating the dendritic cells. This population produces large amounts of IFN-alfa. We found significant and rapid decrease in B cells and CD4(+) Th cells. Our results suggest two possible ways of beneficial cladribine influence on immune system in MS. Induction of IFN-alfa producing cells and their predominance over BDCA-1(+) DCs, which are associated with cytotoxic response. Additionally, cladribine could influence two populations of lymphocytes: B cells and Th lymphocytes responsible for induction of immune response against myelin antigens.
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Chen G, Kheradmand T, Bryant J, Wang S, Tasch J, Wang JJ, Zhang Z, Luo X. Intragraft CD11b(+) IDO(+) cells mediate cardiac allograft tolerance by ECDI-fixed donor splenocyte infusions. Am J Transplant 2012; 12:2920-9. [PMID: 22883222 PMCID: PMC3484208 DOI: 10.1111/j.1600-6143.2012.04203.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We have previously shown that pre- and post-transplant infusions of donor splenocytes treated with 1-ethyl-3-(3'-dimethylaminopropyl)-carbodiimide (ECDI-SPs) provide permanent donor-specific protection of islet allografts. The efficacy of donor ECDI-SPs in protecting vascularized cardiac allografts and mechanism(s) of protection are unknown. In this study, we show that infusions of ECDI-SPs significantly prolong cardiac allograft survival concomitant with an impressive accumulation of CD11b(+) IDO(+) cells in the cardiac allograft, and that the presence of this population is dependent on Gr1(+) cells. Consequently, depletion of Gr1(+) cells or inhibition of indoleamine 2,3 dioxygenase (IDO) activity abrogates graft protection by ECDI-SPs infusions. In addition, T cells from ECDI-SPs treated recipients secrete high levels of interleukin 10 and interleukin 13 upon in vitro restimulation, which are also dampened in recipients treated with the IDO inhibitor. Furthermore, combination of donor ECDI-SPs with a short course of rapamycin provides indefinite cardiac allograft survival in 100% of the recipients. These findings reveal a novel mechanism of donor ECDI-SPs in inducing cardiac transplant tolerance and provide several targets that are amenable to therapeutic manipulations for tolerance induction for cardiac transplantation.
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Affiliation(s)
- Guodong Chen
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Taba Kheradmand
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Jane Bryant
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Sheng Wang
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China, 430030
| | - James Tasch
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Jiao-jing Wang
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Zheng Zhang
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
- Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Xunrong Luo
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
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Pathway analysis in blood cells of pigs infected with classical swine fever virus: comparison of pigs that develop a chronic form of infection or recover. Arch Virol 2012; 158:325-39. [DOI: 10.1007/s00705-012-1491-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 08/17/2012] [Indexed: 01/25/2023]
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Schmidt SV, Nino-Castro AC, Schultze JL. Regulatory dendritic cells: there is more than just immune activation. Front Immunol 2012; 3:274. [PMID: 22969767 PMCID: PMC3432880 DOI: 10.3389/fimmu.2012.00274] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 08/10/2012] [Indexed: 12/11/2022] Open
Abstract
The immune system exists in a delicate equilibrium between inflammatory responses and tolerance. This unique feature allows the immune system to recognize and respond to potential threats in a controlled but normally limited fashion thereby preventing a destructive overreaction against healthy tissues. While the adaptive immune system was the major research focus concerning activation vs. tolerance in the immune system more recent findings suggest that cells of the innate immune system are important players in the decision between effective immunity and induction of tolerance or immune inhibition. Among immune cells of the innate immune system dendritic cells (DCs) have a special function linking innate immune functions with the induction of adaptive immunity. DCs are the primary professional antigen presenting cells (APCs) initiating adaptive immune responses. They belong to the hematopoietic system and arise from CD34(+) stem cells in the bone marrow. Particularly in the murine system two major subgroups of DCs, namely myeloid DCs (mDCs) and plasmacytoid DCs (pDCs) can be distinguished. DCs are important mediators of innate and adaptive immunity mostly due to their remarkable capacity to present processed antigens via major histocompatibility complexes (MHC) to T cells and B cells in secondary lymphoid organs. A large body of literature has been accumulated during the last two decades describing which role DCs play during activation of T cell responses but also during the establishment and maintenance of central tolerance (Steinman et al., 2003). While the concept of peripheral tolerance has been clearly established during the last years, the role of different sets of DCs and their particular molecular mechanisms of immune deviation has not yet fully been appreciated. In this review we summarize accumulating evidence about the role of regulatory DCs in situations where the balance between tolerance and immunogenicity has been altered leading to pathologic conditions such as chronic inflammation or malignancies.
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Affiliation(s)
- Susanne V Schmidt
- Genomics and Immunoregulation, LIMES-Institute, University of Bonn Bonn, Germany
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