1
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Cao Z, Yang X, Yang W, Chen F, Jiang W, Zhan S, Jiang F, Li J, Ye C, Lang L, Zhang S, Feng Z, Lai X, Liu Y, Mao L, Cai H, Teng Y, Xie J. Modulation of Dendritic Cell Function via Nanoparticle-Induced Cytosolic Calcium Changes. ACS NANO 2024; 18:7618-7632. [PMID: 38422984 PMCID: PMC10938921 DOI: 10.1021/acsnano.4c00550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Calcium nanoparticles have been investigated for applications, such as drug and gene delivery. Additionally, Ca2+ serves as a crucial second messenger in the activation of immune cells. However, few studies have systematically studied the effects of calcium nanoparticles on the calcium levels and functions within immune cells. In this study, we explore the potential of calcium nanoparticles as a vehicle to deliver calcium into the cytosol of dendritic cells (DCs) and influence their functions. We synthesized calcium hydroxide nanoparticles, coated them with a layer of silica to prevent rapid degradation, and further conjugated them with anti-CD205 antibodies to achieve targeted delivery to DCs. Our results indicate that these nanoparticles can efficiently enter DCs and release calcium ions in a controlled manner. This elevation in cytosolic calcium activates both the NFAT and NF-κB pathways, in turn promoting the expression of costimulatory molecules, antigen-presenting molecules, and pro-inflammatory cytokines. In mouse tumor models, the calcium nanoparticles enhanced the antitumor immune response and augmented the efficacy of both radiotherapy and chemotherapy without introducing additional toxicity. Our study introduces a safe nanoparticle immunomodulator with potential widespread applications in cancer therapy.
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Affiliation(s)
- Zhengwei Cao
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Xueyuan Yang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Wei Yang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Fanghui Chen
- Department
of Hematology and Medical Oncology & Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Wen Jiang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Shuyue Zhan
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Fangchao Jiang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Jianwen Li
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Chenming Ye
- Department
of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia 30602, United States
| | - Liwei Lang
- Department
of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia 30907, United States
| | - Sirui Zhang
- Institute
of Bioinformatics, University of Georgia, Athens, Georgia 30602, United States
| | - Zhizi Feng
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Xinning Lai
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Yang Liu
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Leidong Mao
- School
of
Electrical and Computer Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Houjian Cai
- Department
of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia 30602, United States
| | - Yong Teng
- Department
of Hematology and Medical Oncology & Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Jin Xie
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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2
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Lee KW, Yam JWP, Mao X. Dendritic Cell Vaccines: A Shift from Conventional Approach to New Generations. Cells 2023; 12:2147. [PMID: 37681880 PMCID: PMC10486560 DOI: 10.3390/cells12172147] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/09/2023] Open
Abstract
In the emerging era of cancer immunotherapy, immune checkpoint blockades (ICBs) and adoptive cell transfer therapies (ACTs) have gained significant attention. However, their therapeutic efficacies are limited due to the presence of cold type tumors, immunosuppressive tumor microenvironment, and immune-related side effects. On the other hand, dendritic cell (DC)-based vaccines have been suggested as a new cancer immunotherapy regimen that can address the limitations encountered by ICBs and ACTs. Despite the success of the first generation of DC-based vaccines, represented by the first FDA-approved DC-based therapeutic cancer vaccine Provenge, several challenges remain unsolved. Therefore, new DC vaccine strategies have been actively investigated. This review addresses the limitations of the currently most adopted classical DC vaccine and evaluates new generations of DC vaccines in detail, including biomaterial-based, immunogenic cell death-inducing, mRNA-pulsed, DC small extracellular vesicle (sEV)-based, and tumor sEV-based DC vaccines. These innovative DC vaccines are envisioned to provide a significant breakthrough in cancer immunotherapy landscape and are expected to be supported by further preclinical and clinical studies.
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Affiliation(s)
- Kyu-Won Lee
- Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong; (K.-W.L.); (J.W.P.Y.)
| | - Judy Wai Ping Yam
- Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong; (K.-W.L.); (J.W.P.Y.)
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong
| | - Xiaowen Mao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
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3
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Macri C, Jenika D, Ouslinis C, Mintern JD. Targeting dendritic cells to advance cross-presentation and vaccination outcomes. Semin Immunol 2023; 68:101762. [PMID: 37167898 DOI: 10.1016/j.smim.2023.101762] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/06/2023] [Accepted: 04/06/2023] [Indexed: 05/13/2023]
Abstract
Dendritic cells (DCs) are a complex network of specialised antigen-presenting cells that are critical initiators of adaptive immunity. Targeting antigen directly to DCs in situ is a vaccination strategy that selectively delivers antigen to receptors expressed by DC subtypes. This approach exploits specific DC subset functions of antigen uptake and presentation. Here, we review DC-targeted vaccination strategies that are designed to elicit effective cross-presentation for CD8+ T cell immunity. In particular, we focus on approaches that exploit receptors highly expressed by mouse and human cDCs equipped with superior cross-presentation capacity. These receptors include DEC205, Clec9A and XCR1. Targeting DC receptors Clec12A, Clec4A4 and mannose receptor is also reviewed. Outcomes of DC-targeted vaccination in mouse models through to human clinical trials is discussed. This is a promising new vaccination approach capable of directly targeting the cross-presentation pathway for prevention and treatment of tumours and infectious diseases.
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Affiliation(s)
- Christophe Macri
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia
| | - Devi Jenika
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia
| | - Cassandra Ouslinis
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia
| | - Justine D Mintern
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia.
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4
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Arroyo Hornero R, Idoyaga J. Plasmacytoid dendritic cells: A dendritic cell in disguise. Mol Immunol 2023; 159:38-45. [PMID: 37269733 PMCID: PMC10625168 DOI: 10.1016/j.molimm.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/20/2023] [Indexed: 06/05/2023]
Abstract
Since their discovery, the identity of plasmacytoid dendritic cells (pDCs) has been at the center of a continuous dispute in the field, and their classification as dendritic cells (DCs) has been recently re-challenged. pDCs are different enough from the rest of the DC family members to be considered a lineage of cells on their own. Unlike the exclusive myeloid ontogeny of cDCs, pDCs may have dual origin developing from myeloid and lymphoid progenitors. Moreover, pDCs have the unique ability to quickly secrete abundant levels of type I interferon (IFN-I) in response to viral infections. In addition, pDCs undergo a differentiation process after pathogen recognition that allows them to activate T cells, a feature that has been shown to be independent of presumed contaminating cells. Here, we aim to provide an overview of the historic and current understanding of pDCs and argue that their classification as either lymphoid or myeloid may be an oversimplification. Instead, we propose that the capacity of pDCs to link the innate and adaptive immune response by directly sensing pathogens and activating adaptive immune responses justify their inclusion within the DC network.
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Affiliation(s)
- Rebeca Arroyo Hornero
- Microbiology & Immunology Department, and Immunology Program, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Juliana Idoyaga
- Microbiology & Immunology Department, and Immunology Program, Stanford University School of Medicine, Stanford, CA 94305, USA.
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5
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Plasmacytoid Dendritic Cells as a Novel Cell-Based Cancer Immunotherapy. Int J Mol Sci 2022; 23:ijms231911397. [PMID: 36232698 PMCID: PMC9570010 DOI: 10.3390/ijms231911397] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 12/15/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are multifaceted immune cells with a wide range of innate and adaptive immunological functions. They constitute the first line of defence against multiple viral infections and have also been reported to actively participate in antitumor immune responses. The clinical implication of the presence of pDCs in the tumor microenvironment (TME) is still ambiguous, but it is clear that pDCs possess the ability to modulate tumor-specific T cell responses and direct cytotoxic functions. Therapeutic strategies designed to exploit these qualities of pDCs to boost tumor-specific immune responses could represent an attractive alternative compared to conventional therapeutic approaches in the future, and promising antitumor effects have already been reported in phase I/II clinical trials. Here, we review the many roles of pDCs in cancer and present current advances in developing pDC-based immunotherapeutic approaches for treating cancer.
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6
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Exploring Lead loci shared between schizophrenia and Cardiometabolic traits. BMC Genomics 2022; 23:617. [PMID: 36008755 PMCID: PMC9414090 DOI: 10.1186/s12864-022-08766-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 07/13/2022] [Indexed: 11/10/2022] Open
Abstract
Individuals with schizophrenia (SCZ) have, on average, a 10- to 20-year shorter expected life span than the rest of the population, primarily due to cardiovascular disease comorbidity. Genome-wide association studies (GWAS) have previously been used to separately identify common variants in SCZ and cardiometabolic traits. However, genetic variants jointly influencing both traits remain to be fully characterised. To assess overlaps (if any) between the genetic architecture of SCZ and cardiometabolic traits, we used conditional false discovery rate (FDR) and local genetic correlation statistical framework analyses. A conjunctional FDR was used to identify shared genetic traits between SCZ and cardiometabolic risk factors. We identified 144 genetic variants which were shared between SCZ and body mass index (BMI), and 15 variants shared between SCZ and triglycerides (TG). Furthermore, we discovered four novel single nucleotide polymorphisms (SNPs) (rs3865350, rs9860913, rs13307 and rs9614186) and four proximate genes (DERL2, SNX4, LY75 and EFCAB6) which were shared by SCZ and BMI. We observed that the novel genetic variant rs13307 and the most proximate gene LY75 exerted potential effects on SCZ and BMI comorbidity. Also, we observed a mixture of concordant and opposite direction associations with shared genetic variants. We demonstrated a moderate to high genetic overlap between SCZ and cardiometabolic traits associated with a pattern of bidirectional associations. Our data suggested a complex interplay between metabolism-related gene pathways in SCZ pathophysiology.
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7
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Delva JL, Van Waesberghe C, Klupp BG, Mettenleiter TC, Favoreel HW. Alphaherpesvirus-induced activation of plasmacytoid dendritic cells depends on the viral glycoprotein gD and is inhibited by non-infectious light particles. PLoS Pathog 2021; 17:e1010117. [PMID: 34843605 PMCID: PMC8659615 DOI: 10.1371/journal.ppat.1010117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 12/09/2021] [Accepted: 11/16/2021] [Indexed: 12/28/2022] Open
Abstract
Plasmacytoid dendritic cells (pDC) are important innate immune cells during the onset of viral infections as they are specialized in the production of massive amounts of antiviral type I interferon (IFN). Alphaherpesviruses such as herpes simplex virus (HSV) or pseudorabies virus (PRV) are double stranded DNA viruses and potent stimulators of pDC. Detailed information on how PRV activates porcine pDC is lacking. Using PRV and porcine primary pDC, we report here that PRV virions, so-called heavy (H-)particles, trigger IFNα production by pDC, whereas light (L-) particles that lack viral DNA and capsid do not. Activation of pDC requires endosomal acidification and, importantly, depends on the PRV gD envelope glycoprotein and O-glycosylations. Intriguingly, both for PRV and HSV-1, we found that L-particles suppress H-particle-mediated activation of pDC, a process which again depends on viral gD. This is the first report describing that gD plays a critical role in alphaherpesvirus-induced pDC activation and that L-particles directly interfere with alphaherpesvirus-induced IFNα production by pDC.
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Affiliation(s)
- Jonas L Delva
- Department of Virology, Parasitology, Immunology-Faculty of Veterinary Medicine-Ghent University, Merelbeke, Belgium
| | - Cliff Van Waesberghe
- Department of Virology, Parasitology, Immunology-Faculty of Veterinary Medicine-Ghent University, Merelbeke, Belgium
| | - Barbara G Klupp
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
| | - Thomas C Mettenleiter
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
| | - Herman W Favoreel
- Department of Virology, Parasitology, Immunology-Faculty of Veterinary Medicine-Ghent University, Merelbeke, Belgium
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8
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Li J, Panetta F, O'Keeffe M, Leal Rojas IM, Radford KJ, Zhang JG, Fernandez-Ruiz D, Davey GM, Gully BS, Tullett KM, Rossjohn J, Berry R, Lee CN, Lahoud MH, Heath WR, Caminschi I. Elucidating the Motif for CpG Oligonucleotide Binding to the Dendritic Cell Receptor DEC-205 Leads to Improved Adjuvants for Liver-Resident Memory. THE JOURNAL OF IMMUNOLOGY 2021; 207:1836-1847. [PMID: 34479944 DOI: 10.4049/jimmunol.2001153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 08/03/2021] [Indexed: 11/19/2022]
Abstract
DEC-205 is a cell-surface receptor that transports bound ligands into the endocytic pathway for degradation or release within lysosomal endosomes. This receptor has been reported to bind a number of ligands, including keratin, and some classes of CpG oligodeoxynucleotides (ODN). In this study, we explore in detail the requirements for binding ODNs, revealing that DEC-205 efficiently binds single-stranded, phosphorothioated ODN of ≥14 bases, with preference for the DNA base thymidine, but with no requirement for a CpG motif. DEC-205 fails to bind double-stranded phosphodiester ODN, and thus does not bind the natural type of DNA found in mammals. The ODN binding preferences of DEC-205 result in strong binding of B class ODN, moderate binding to C class ODN, minimal binding to P class ODN, and no binding to A class ODN. Consistent with DEC-205 binding capacity, induction of serum IL-12p70 or activation of B cells by each class of ODN correlated with DEC-205 dependence in mice. Thus, the greater the DEC-205 binding capacity, the greater the dependence on DEC-205 for optimal responses. Finally, by covalently linking a B class ODN that efficiently binds DEC-205, to a P class ODN that shows poor binding, we improved DEC-205 binding and increased adjuvancy of the hybrid ODN. The hybrid ODN efficiently enhanced induction of effector CD8 T cells in a DEC-205-dependent manner. Furthermore, the hybrid ODN induced robust memory responses, and was particularly effective at promoting the development of liver tissue-resident memory T cells.
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Affiliation(s)
- Jessica Li
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia
| | - Fatma Panetta
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Meredith O'Keeffe
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Ingrid M Leal Rojas
- Cancer Immunotherapies Laboratory, Mater Research Institute, University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Kristen J Radford
- Cancer Immunotherapies Laboratory, Mater Research Institute, University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Jian-Guo Zhang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Daniel Fernandez-Ruiz
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Gayle M Davey
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia
| | - Benjamin S Gully
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia
| | - Kirsteen M Tullett
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Jamie Rossjohn
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia.,Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff, United Kingdom
| | - Richard Berry
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia
| | - Chin-Nien Lee
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; and
| | - Mireille H Lahoud
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - William R Heath
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia; .,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Irina Caminschi
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia
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9
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Bettini M, Bettini ML. Function, Failure, and the Future Potential of Tregs in Type 1 Diabetes. Diabetes 2021; 70:1211-1219. [PMID: 34016597 PMCID: PMC8275894 DOI: 10.2337/dbi18-0058] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/10/2021] [Indexed: 12/22/2022]
Abstract
Critical insights into the etiology of type 1 diabetes (T1D) came from genome-wide association studies that unequivocally connected genetic susceptibility to immune cell function. At the top of the susceptibility are genes involved in regulatory T-cell (Treg) function and development. The advances in epigenetic and transcriptional analyses have provided increasing evidence for Treg dysfunction in T1D. These are well supported by functional studies in mouse models and analysis of peripheral blood during T1D. For these reasons, Treg-based therapies are at the forefront of research and development and have a tangible probability to deliver a long-sought-after successful immune-targeted treatment for T1D. The current challenge in the field is whether we can directly assess Treg function at the tissue site or make informative interpretations based on peripheral data. Future studies focused on Treg function in pancreatic lymph nodes and pancreas could provide key insight into the ultimate mechanisms underlying Treg failure in T1D. In this Perspective we will provide an overview of current literature regarding Treg development and function in T1D and how this knowledge has been applied to Treg therapies.
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MESH Headings
- Animals
- Autoimmunity/physiology
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/pathology
- Diabetes Mellitus, Type 1/therapy
- Endocrinology/methods
- Endocrinology/trends
- Humans
- Immune Tolerance/physiology
- Immunotherapy, Adoptive/methods
- Immunotherapy, Adoptive/trends
- Mice
- Molecular Targeted Therapy/methods
- Molecular Targeted Therapy/trends
- Pancreas/immunology
- Pancreas/metabolism
- Pancreas/pathology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- T-Lymphocytes, Regulatory/physiology
- T-Lymphocytes, Regulatory/transplantation
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Affiliation(s)
- Maria Bettini
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT
| | - Matthew L Bettini
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT
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10
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Qin H, Zhao R, Qin Y, Zhu J, Chen L, Di C, Han X, Cheng K, Zhang Y, Zhao Y, Shi J, Anderson GJ, Zhao Y, Nie G. Development of a Cancer Vaccine Using In Vivo Click-Chemistry-Mediated Active Lymph Node Accumulation for Improved Immunotherapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006007. [PMID: 33792097 DOI: 10.1002/adma.202006007] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 02/04/2021] [Indexed: 06/12/2023]
Abstract
Due to their ability to elicit a potent immune reaction with low systemic toxicity, cancer vaccines represent a promising strategy for treating tumors. Considerable effort has been directed toward improving the in vivo efficacy of cancer vaccines, with direct lymph node (LN) targeting being the most promising approach. Here, a click-chemistry-based active LN accumulation system (ALAS) is developed by surface modification of lymphatic endothelial cells with an azide group, which provide targets for dibenzocyclooctyne (DBCO)-modified liposomes, to improve the delivery of encapsulated antigen and adjuvant to LNs. When loading with OVA257-264 peptide and poly(I:C), the formulation elicits an enhanced CD8+ T cell response in vivo, resulting in a much more efficient therapeutic effect and prolonged median survival of mice. Compared to treatment with DBCO-conjugated liposomes (DL)-Ag/Ad without the azide targeting, the percent survival of ALAS-vaccine-treated mice improves by 100% over 60 days. Altogether, the findings indicate that the novel ALAS approach is a powerful strategy to deliver vaccine components to LNs for enhanced antitumor immunity.
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Affiliation(s)
- Hao Qin
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ruifang Zhao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- The GBA National Institute for Nanotechnology Innovation, Guangdong, 510700, China
| | - Yuting Qin
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jin Zhu
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Long Chen
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunzhi Di
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuexiang Han
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Keman Cheng
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
| | - Yinlong Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Zhao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian Shi
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gregory J Anderson
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia
| | - Yuliang Zhao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- The GBA National Institute for Nanotechnology Innovation, Guangdong, 510700, China
| | - Guangjun Nie
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, China, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- The GBA National Institute for Nanotechnology Innovation, Guangdong, 510700, China
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11
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Production of a full chimeric mouse x pig anti-porcine DEC205 receptor recombinant antibody. J Immunol Methods 2020; 489:112911. [PMID: 33186587 DOI: 10.1016/j.jim.2020.112911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 11/01/2020] [Accepted: 11/02/2020] [Indexed: 11/23/2022]
Abstract
Recombinant hybrid antibodies are commonly used in antigen-targeting assays to reduce the immunogenic potential associated with using classic mouse antibodies in other species. The DEC205 receptor has become an attractive target due to its effectiveness in activating the immune response and is considered a promising vaccination target. The aim of this study was to produce a fully chimeric mouse x pig anti-porcine DEC205 recombinant antibody (rAb). Based on a mouse anti-porcine DEC205 monoclonal antibody (mAb), we designed and expressed a chimeric mouse x pig rAb using the Expi293f system. The resulting rAb maintained the recognition capacity of the native mouse mAb toward the porcine DEC205 receptor, as evidenced by western blot analysis. By using flow cytometry, we evaluated the ability of the rAb to recognize DEC205+ dendritic cells. In conclusion, the chimeric mouse x pig anti-DEC205 rAb can be used in antigen-targeting assays as a vaccination strategy in pigs.
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12
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Systematic Multiomic Analysis of Ly75 Gene Expression and Its Prognostic Value Through the Infiltration of Natural Killer (NK) Cells in Skin Cutaneous Melanoma. J Clin Med 2020; 9:jcm9051383. [PMID: 32397120 PMCID: PMC7291273 DOI: 10.3390/jcm9051383] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/23/2020] [Accepted: 05/05/2020] [Indexed: 12/24/2022] Open
Abstract
Ly75 (also known as DEC-205 or CD205) is expressed in immune cells and cancers and involved in tumor immunity. However, clinical relevance of Ly75 expression in skin cutaneous melanoma (SKCM) have not been comprehensively studied. This study analyzed the correlation between Ly75 mRNA expression and patient survival using systematic multiomic analysis tools. Ly75 mRNA expression level was significantly lower in SKCM tissues than in normal tissues. Survival analysis showed that Ly75 expression significantly correlated with good patient survival. To determine possible mechanisms, the association between Ly75 expression and immune cell infiltration was analyzed. Ly75 expression was positively correlated with various infiltrated immune cells, particularly with natural killer (NK) cell infiltration and activation in SKCM. Moreover, analysis of Ly75-co-altered gene expression revealed that Ptprc (CD45) was most significantly correlated with Ly75. Gene ontology analysis of Ly75-co-altered genes indicated the relation to lymphocyte activation, including NK cell activation. Overall, our study provides the first clinical evidence that Ly75 expression is significantly associated with melanoma patient survival and NK cell infiltration, suggesting that Ly75 could be a useful prognostic factor.
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13
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Leylek R, Idoyaga J. The versatile plasmacytoid dendritic cell: Function, heterogeneity, and plasticity. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2019; 349:177-211. [PMID: 31759431 DOI: 10.1016/bs.ircmb.2019.10.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Since their identification as the natural interferon-producing cell two decades ago, plasmacytoid dendritic cells (pDCs) have been attributed diverse functions in the immune response. Their most well characterized function is innate, i.e., their rapid and robust production of type-I interferon (IFN-I) in response to viruses. However, pDCs have also been implicated in antigen presentation, activation of adaptive immune responses and immunoregulation. The mechanisms by which pDCs enact these diverse functions are poorly understood. One central debate is whether these functions are carried out by different pDC subpopulations or by plasticity in the pDC compartment. This chapter summarizes the latest reports regarding pDC function, heterogeneity, cell conversion and environmentally influenced plasticity, as well as the role of pDCs in infection, autoimmunity and cancer.
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Affiliation(s)
- Rebecca Leylek
- Department of Microbiology and Immunology, and Immunology Program, Stanford University School of Medicine, Stanford, CA, United States
| | - Juliana Idoyaga
- Department of Microbiology and Immunology, and Immunology Program, Stanford University School of Medicine, Stanford, CA, United States.
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14
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Calmeiro J, Carrascal M, Gomes C, Falcão A, Cruz MT, Neves BM. Biomaterial-based platforms for in situ dendritic cell programming and their use in antitumor immunotherapy. J Immunother Cancer 2019; 7:238. [PMID: 31484548 PMCID: PMC6727507 DOI: 10.1186/s40425-019-0716-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 08/23/2019] [Indexed: 02/07/2023] Open
Abstract
Dendritic cells (DCs) are central players in the immune system, with an exquisite capacity to initiate and modulate immune responses. These functional characteristics have led to intense research on the development of DC-based immunotherapies, particularly for oncologic diseases. During recent decades, DC-based vaccines have generated very promising results in animal studies, and more than 300 clinical assays have demonstrated the safety profile of this approach. However, clinical data are inconsistent, and clear evidence of meaningful efficacy is still lacking. One of the reasons for this lack of evidence is the limited functional abilities of the used ex vivo-differentiated DCs. Therefore, alternative approaches for targeting and modulating endogenous DC subpopulations have emerged as an attractive concept. Here, we sought to revise the evolution of several strategies for the in situ mobilization and modulation of DCs. The first approaches using chemokine-secreting irradiated tumor cells are addressed, and special attention is given to the cutting-edge injectable bioengineered platforms, programmed to release chemoattractants, tumor antigens and DC maturating agents. Finally, we discuss how our increasing knowledge of DC biology, the use of neoantigens and their combination with immune checkpoint inhibitors can leverage the refinement of these polymeric vaccines to boost their antitumor efficacy.
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Affiliation(s)
- João Calmeiro
- Faculty of Pharmacy, University of Coimbra, 3000-548, Coimbra, Portugal
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
| | - Mylène Carrascal
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
- Tecnimede Group, Sintra, Portugal
| | - Célia Gomes
- Coimbra Institute for Clinical and Biomedical Research, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- Center for Innovation in Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Amílcar Falcão
- Faculty of Pharmacy, University of Coimbra, 3000-548, Coimbra, Portugal
- Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, Coimbra, Portugal
| | - Maria Teresa Cruz
- Faculty of Pharmacy, University of Coimbra, 3000-548, Coimbra, Portugal
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
| | - Bruno Miguel Neves
- Department of Medical Sciences and Institute of Biomedicine - iBiMED, University of Aveiro, Agra do Crasto - Edifício 30, 3810-193, Aveiro, Portugal.
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15
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Sengupta A, Keswani T, Sarkar S, Ghosh S, Mukherjee S, Bhattacharyya A. Autophagic induction modulates splenic plasmacytoid dendritic cell mediated immune response in cerebral malarial infection model. Microbes Infect 2019; 21:475-484. [PMID: 31185303 DOI: 10.1016/j.micinf.2019.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 05/16/2019] [Accepted: 05/28/2019] [Indexed: 02/06/2023]
Abstract
Splenic plasmacytoid dendritic cells (pDC) possess the capability to harbor live replicative Plasmodium parasite. Isolated splenic pDC from infected mice causes malaria when transferred to naïve mice. Incomplete autophagic degradation might cause poor antigen processing and poor immune response. Induction of autophagic flux by rapamycin treatment led to better prognosis by boosting pDC centered immune response against the pathogen. Splenic pDC from rapamycin-treated infected mice, caused less parasitemia in naïve mice. The downregulation of adhesion with unaltered phagocytic potential of the cells post autophagic induction restricted excessive parasite burden within them. Rapamycin-treated pDC played a better role in antigen presentation. They showed higher expression of co-stimulatory molecules CD80, CD86, DEC205, MHCI. Rapamycin-treated pDC induced CD28 expression on CD8+ T cells and suppressed FasL level. This cells also influenced differentiation of effector, memory T cell population. The increase in IL10: TNFα ratio, Treg: Th17 ratio and lowering of myeloid DC: plasmacytoid DC ratio was observed. It shifted the overaggressive inflammation mediated Th1 pathway that is reported to incur host damage, to a better well-balanced cytokine profile exhibiting Th2 pathway. Autophagic flux induction within pDC proved to be beneficial in combating malarial pathogenicity.
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Affiliation(s)
- Anirban Sengupta
- Immunology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
| | - Tarun Keswani
- Basic and Clinical Immunology of Parasitic Diseases, Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Centre of Infection and Immunity Lille, F-59000 Lille, France, 1 Rue du Professeur Calmette, 59019, Lille, France.
| | - Samrat Sarkar
- Immunology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
| | - Soubhik Ghosh
- Immunology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
| | - Saikat Mukherjee
- Immunology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
| | - Arindam Bhattacharyya
- Immunology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
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16
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Ling Z, Shao L, Liu X, Cheng Y, Yan C, Mei Y, Ji F, Liu X. Regulatory T Cells and Plasmacytoid Dendritic Cells Within the Tumor Microenvironment in Gastric Cancer Are Correlated With Gastric Microbiota Dysbiosis: A Preliminary Study. Front Immunol 2019; 10:533. [PMID: 30936882 PMCID: PMC6433099 DOI: 10.3389/fimmu.2019.00533] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 02/27/2019] [Indexed: 12/26/2022] Open
Abstract
Substantial evidence indicates that gastric microbiota dysbiosis, immune system dysfunction especially immune escape are critical for gastric cancer (GC) occurrence and progression. As two important elements of tumor microenvironment (TME), the relationship between gastric microbiota and tumor-immune microenvironment is still unclear. Our present study aimed to explore the correlation between gastric mucosal microbiota in different microhabitats and its corresponding gastric immunosuppressive cells such as regulatory T cells (Tregs) and plasmacytoid dendritic cells (pDCs) in the TME. A cohort of 64 GC patients without preoperative chemotherapy was enrolled retrospectively, and 60 normal, 61 peritumoral and 59 tumoral tissues were obtained for gastric mucosal microbiota analysis and immunohistochemistry analysis. From different microhabitats, BDCA2+pDCs and Foxp3+Tregs were observed positively correlated, and increased in tumoral and peritumoral tissues compared to normal ones. The diversity, composition and function of gastric mucosal microbiota also changed more significantly in tumoral tissues than those in normal and peritumoral ones. With pearson's correlation analysis, we found that several non-abundant genera such as Stenotrophomonas and Selenomonas were positively correlated with BDCA2+pDCs and Foxp3+Tregs, respectively, while Comamonas and Gaiella were negatively correlated with BDCA2+pDCs and Foxp3+ Tregs, respectively. The increased BDCA2+pDCs and Foxp3+Tregs might be modulated by gastric mucosal microbiota, both participated in the immunosuppression microenvironment of GC, which might provide evidence to establish new strategies in antitumor therapy targeting on gastric microbiota.
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Affiliation(s)
- Zongxin Ling
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
| | - Li Shao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
| | - Xia Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
| | - Yiwen Cheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
| | - Chongxian Yan
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
| | - Ying Mei
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
| | - Feng Ji
- Department of Gastroenterology, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
| | - Xiaosun Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University Hangzhou, China
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17
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Gornati L, Zanoni I, Granucci F. Dendritic Cells in the Cross Hair for the Generation of Tailored Vaccines. Front Immunol 2018; 9:1484. [PMID: 29997628 PMCID: PMC6030256 DOI: 10.3389/fimmu.2018.01484] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 06/14/2018] [Indexed: 12/14/2022] Open
Abstract
Vaccines represent the discovery of utmost importance for global health, due to both prophylactic action to prevent infections and therapeutic intervention in neoplastic diseases. Despite this, current vaccination strategies need to be refined to successfully generate robust protective antigen-specific memory immune responses. To address this issue, one possibility is to exploit the high efficiency of dendritic cells (DCs) as antigen-presenting cells for T cell priming. DCs functional plasticity allows shaping the outcome of immune responses to achieve the required type of immunity. Therefore, the choice of adjuvants to guide and sustain DCs maturation, the design of multifaceted vehicles, and the choice of surface molecules to specifically target DCs represent the key issues currently explored in both preclinical and clinical settings. Here, we review advances in DCs-based vaccination approaches, which exploit direct in vivo DCs targeting and activation options. We also discuss the recent findings for efficient antitumor DCs-based vaccinations and combination strategies to reduce the immune tolerance promoted by the tumor microenvironment.
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Affiliation(s)
- Laura Gornati
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Ivan Zanoni
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy.,Division of Gastroenterology, Harvard Medical School, Boston Children's Hospital, Boston, MA, United States
| | - Francesca Granucci
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
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18
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Chowdhury PH, Okano H, Honda A, Kudou H, Kitamura G, Ito S, Ueda K, Takano H. Aqueous and organic extract of PM 2.5 collected in different seasons and cities of Japan differently affect respiratory and immune systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:223-234. [PMID: 29291522 DOI: 10.1016/j.envpol.2017.12.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 10/24/2017] [Accepted: 12/10/2017] [Indexed: 06/07/2023]
Abstract
Particulate matter with diameters <2.5 μm (i.e., PM2.5) has multiple natural and anthropological sources. The association between PM2.5 and the exacerbation of respiratory allergy and asthma has been well studied, but the components of PM2.5 that are responsible for allergies have not yet been determined. Here, we elucidated the effects of aqueous and organic extract of PM2.5 collected during four seasons in November 2014-December 2015 in two cities (Kawasaki, an industrial area and Fukuoka, an urban area affected by transboundary pollution matter) of Japan on respiratory health. Ambient PM2.5 was collected by high-volume air samplers and extracted into water soluble and lipid soluble components. Human airway epithelial cells, murine bone marrow-derived antigen-presenting cells (APC) and splenocytes were exposed to PM2.5 extracts. We measured the cell viability and release of interleukin (IL)-6 and IL-8 from airway epithelial cells, the DEC205 and CD86 expressions on APCs and cell proliferation, and TCR and CD19 expression on splenocytes. The water-soluble or aqueous extracts, especially those from Kawasaki in fall, had a greater cytotoxic effect than the lipid-soluble or organic extracts in airway epithelial cells, but they caused almost no pro-inflammatory response. Extract of fall, especially the aqueous extract from Fukuoka, increased the DEC205 and CD86 expressions on APC. Moreover, aqueous extracts of fall, summer, and spring from Fukuoka significantly increased proliferation of splenocytes. Organic extract of spring and summer from Kawasaki significantly elevated the TCR expression, and organic extract of summer from Kawasaki decreased the CD19 expression. These results suggest that PM2.5 extract samples are responsible for cytotoxicity in airway epithelial cells and for activating APCs and T-cells, which can contribute to the exacerbation of respiratory diseases such as asthma. These effects can differ by PM2.5 components, collection areas and seasons.
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Affiliation(s)
- Pratiti Home Chowdhury
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Hitoshi Okano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Akiko Honda
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan.
| | - Hitomi Kudou
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Gaku Kitamura
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Sho Ito
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Kayo Ueda
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Hirohisa Takano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
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19
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Bermejo-Jambrina M, Eder J, Helgers LC, Hertoghs N, Nijmeijer BM, Stunnenberg M, Geijtenbeek TBH. C-Type Lectin Receptors in Antiviral Immunity and Viral Escape. Front Immunol 2018; 9:590. [PMID: 29632536 PMCID: PMC5879224 DOI: 10.3389/fimmu.2018.00590] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 03/09/2018] [Indexed: 02/01/2023] Open
Abstract
C-type lectin receptors (CLRs) are important pattern recognition receptors involved in recognition and induction of adaptive immunity to pathogens. Certain CLRs play an important role in viral infections as they efficiently interact with viruses. However, it has become clear that deadly viruses subvert the function of CLRs to escape antiviral immunity and promote infection. In particular, viruses target CLRs to suppress or modulate type I interferons that play a central role in the innate and adaptive defense against viruses. In this review, we discuss the function of CLRs in binding to enveloped viruses like HIV-1 and Dengue virus, and how uptake and signaling cascades have decisive effects on the outcome of infection.
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Affiliation(s)
- Marta Bermejo-Jambrina
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Julia Eder
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Leanne C Helgers
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Nina Hertoghs
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Bernadien M Nijmeijer
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Melissa Stunnenberg
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Teunis B H Geijtenbeek
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
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20
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Kita M, Yokota K, Kageyama C, Take S, Goto K, Kawahara Y, Matsushita O, Okada H. DEC205 mediates local and systemic immune responses to Helicobacter pylori infection in humans. Oncotarget 2018; 9:15828-15835. [PMID: 29662609 PMCID: PMC5882300 DOI: 10.18632/oncotarget.24574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 10/25/2017] [Indexed: 11/25/2022] Open
Abstract
Helicobacter pylori infections cause gastritis and affect systemic immune responses; however, no direct association between immune cells and stomach bacteria has yet been reported. The present study investigated DEC205-mediated phagocytosis of H. pylori and the role of DEC205-positive macrophages in the human gastric mucosa. DEC205 mediated phagocytosis of H. pylori was detected immunocytochemically in PMA-stimulated macrophages differentiated from NOMO1 cells. Expression of DEC205 mRNA in peripheral blood mononuclear cells (PBMCs) from H. pylori-infected patients was analyzed following stimulation with H. pylori cell lysate. We found that anti-DEC205 antibodies inhibited phagocytosis of H. pylori. The number of cells double-positive for DEC205 and CD14 in human gastric mucosa was higher in H. pylori-infected patients. DEC205-positive macrophages invaded the extracellular space between epithelial cells within gastric pits. In addition, DEC205 mRNA expression was upregulated in human PBMCs stimulated with H. pylori lysate. These findings suggest DEC205-expressing macrophages are important for recognition of H. pylori in human gastric mucosa, which affects systemic immunity.
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Affiliation(s)
- Masahide Kita
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama University, Okayama, Japan
| | - Kenji Yokota
- Graduate School of Health Science, Okayama University, Okayama, Japan
| | - Chihiro Kageyama
- Graduate School of Health Science, Okayama University, Okayama, Japan
| | - Susumu Take
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama University, Okayama, Japan
| | - Kazuyoshi Goto
- Department of Bacteriology, Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama University, Okayama, Japan
| | - Yoshiro Kawahara
- Department of Endoscopy, Okayama University Hospital, Okayama, Japan
| | - Osamu Matsushita
- Department of Bacteriology, Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama University, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama University, Okayama, Japan
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21
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Li S, Wu J, Zhu S, Liu YJ, Chen J. Disease-Associated Plasmacytoid Dendritic Cells. Front Immunol 2017; 8:1268. [PMID: 29085361 PMCID: PMC5649186 DOI: 10.3389/fimmu.2017.01268] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 09/22/2017] [Indexed: 12/20/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs), also called natural interferon (IFN)-producing cells, represent a specialized cell type within the innate immune system. pDCs are specialized in sensing viral RNA and DNA by toll-like receptor-7 and -9 and have the ability to rapidly produce massive amounts of type 1 IFNs upon viral encounter. After producing type 1 IFNs, pDCs differentiate into professional antigen-presenting cells, which are capable of stimulating T cells of the adaptive immune system. Chronic activation of human pDCs by self-DNA or mitochondrial DNA contributes to the pathogenesis of systemic lupus erythematosis and IFN-related autoimmune diseases. Under steady-state conditions, pDCs play an important role in immune tolerance. In many types of human cancers, recruitment of pDCs to the tumor microenvironment contributes to the induction of immune tolerance. Here, we provide a systemic review of recent progress in studies on the role of pDCs in human diseases, including cancers and autoimmune/inflammatory diseases.
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Affiliation(s)
- Shuang Li
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, China
| | - Jing Wu
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, China
| | - Shan Zhu
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, China
| | - Yong-Jun Liu
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, China.,Sanofi Research and Development, Cambridge, MA, United States
| | - Jingtao Chen
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, China
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22
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van Dinther D, Stolk DA, van de Ven R, van Kooyk Y, de Gruijl TD, den Haan JMM. Targeting C-type lectin receptors: a high-carbohydrate diet for dendritic cells to improve cancer vaccines. J Leukoc Biol 2017; 102:1017-1034. [PMID: 28729358 PMCID: PMC5597514 DOI: 10.1189/jlb.5mr0217-059rr] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/13/2017] [Accepted: 06/16/2017] [Indexed: 12/23/2022] Open
Abstract
There is a growing understanding of why certain patients do or do not respond to checkpoint inhibition therapy. This opens new opportunities to reconsider and redevelop vaccine strategies to prime an anticancer immune response. Combination of such vaccines with checkpoint inhibitors will both provide the fuel and release the brake for an efficient anticancer response. Here, we discuss vaccine strategies that use C-type lectin receptor (CLR) targeting of APCs, such as dendritic cells and macrophages. APCs are a necessity for the priming of antigen-specific cytotoxic and helper T cells. Because CLRs are natural carbohydrate-recognition receptors highly expressed by multiple subsets of APCs and involved in uptake and processing of Ags for presentation, these receptors seem particularly interesting for targeting purposes.
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Affiliation(s)
- Dieke van Dinther
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
| | - Dorian A Stolk
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
| | - Rieneke van de Ven
- Department of Medical Oncology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
| | - Tanja D de Gruijl
- Department of Medical Oncology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - Joke M M den Haan
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
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23
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Pahari S, Kaur G, Aqdas M, Negi S, Chatterjee D, Bashir H, Singh S, Agrewala JN. Bolstering Immunity through Pattern Recognition Receptors: A Unique Approach to Control Tuberculosis. Front Immunol 2017; 8:906. [PMID: 28824632 PMCID: PMC5539433 DOI: 10.3389/fimmu.2017.00906] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 07/14/2017] [Indexed: 12/24/2022] Open
Abstract
The global control of tuberculosis (TB) presents a continuous health challenge to mankind. Despite having effective drugs, TB still has a devastating impact on human health. Contributing reasons include the emergence of drug-resistant strains of Mycobacterium tuberculosis (Mtb), the AIDS-pandemic, and the absence of effective vaccines against the disease. Indeed, alternative and effective methods of TB treatment and control are urgently needed. One such approach may be to more effectively engage the immune system; particularly the frontline pattern recognition receptor (PRR) systems of the host, which sense pathogen-associated molecular patterns (PAMPs) of Mtb. It is well known that 95% of individuals infected with Mtb in latent form remain healthy throughout their life. Therefore, we propose that clues can be found to control the remainder by successfully manipulating the innate immune mechanisms, particularly of nasal and mucosal cavities. This article highlights the importance of signaling through PRRs in restricting Mtb entry and subsequently preventing its infection. Furthermore, we discuss whether this unique therapy employing PRRs in combination with drugs can help in reducing the dose and duration of current TB regimen.
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Affiliation(s)
- Susanta Pahari
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Gurpreet Kaur
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Mohammad Aqdas
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Shikha Negi
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Deepyan Chatterjee
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Hilal Bashir
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Sanpreet Singh
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Javed N Agrewala
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
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Shekarian T, Valsesia-Wittmann S, Brody J, Michallet M, Depil S, Caux C, Marabelle A. Pattern recognition receptors: immune targets to enhance cancer immunotherapy. Ann Oncol 2017; 28:1756-1766. [DOI: 10.1093/annonc/mdx179] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Lotfi-Emran S, Ward BR, Le QT, Pozez AL, Manjili MH, Woodfolk JA, Schwartz LB. Human mast cells present antigen to autologous CD4 + T cells. J Allergy Clin Immunol 2017. [PMID: 28624612 DOI: 10.1016/j.jaci.2017.02.048] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Mast cells (MCs), the primary effector cell of the atopic response, participate in immune defense at host/environment interfaces, yet the mechanisms by which they interact with CD4+ T cells has been controversial. OBJECTIVE We used in situ-matured primary human MCs and matched CD4+ T cells to diligently assess the ability of MCs to act as antigen-presenting cells. METHODS We examined mature human skin-derived MCs using flow cytometry for expression of antigen-presenting molecules, for their ability to stimulate CD4+ T cells to express CD25 and proliferate when exposed to superantigen or to cytomegalovirus (CMV) antigen using matched T cells and MCs from CMV-seropositive or CMV-seronegative donors, and for antigen uptake. Subcellular localization of antigen, HLA molecules, and tryptase was analyzed by using structured illumination microscopy. RESULTS Our data show that IFN-γ induces HLA class II, HLA-DM, CD80, and CD40 expression on MCs, whereas MCs take up soluble and particulate antigens in an IFN-γ-independent manner. IFN-γ-primed MCs guide activation of T cells by Staphylococcus aureus superantigen and, when preincubated with CMV antigens, induce a recall CD4+ TH1 proliferation response only in CMV-seropositive donors. MCs co-opt their secretory granules for antigen processing and presentation. Consequently, MC degranulation increases surface delivery of HLA class II/peptide, further enhancing stimulation of T-cell proliferation. CONCLUSIONS IFN-γ primes human MCs to activate T cells through superantigen and to present CMV antigen to TH1 cells, co-opting MC secretory granules for antigen processing and presentation and creating a feed-forward loop of T-cell-MC cross-activation.
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Affiliation(s)
- Sahar Lotfi-Emran
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Va
| | - Brant R Ward
- Division of Rheumatology, Allergy and Immunology, Virginia Commonwealth University, Richmond, Va
| | - Quang T Le
- Division of Rheumatology, Allergy and Immunology, Virginia Commonwealth University, Richmond, Va
| | - Andrea L Pozez
- Division of Plastic and Reconstructive Surgery, Virginia Commonwealth University, Richmond, Va
| | - Masoud H Manjili
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Va; Massey Cancer Center, Virginia Commonwealth University, Richmond, Va
| | - Judith A Woodfolk
- Division of Asthma, Allergy, and Immunology, University of Virginia, Charlottesville, Va
| | - Lawrence B Schwartz
- Division of Rheumatology, Allergy and Immunology, Virginia Commonwealth University, Richmond, Va.
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Cote R, Lynn Eggink L, Kenneth Hoober J. CLEC receptors, endocytosis and calcium signaling. AIMS ALLERGY AND IMMUNOLOGY 2017. [DOI: 10.3934/allergy.2017.4.207] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Hutten TJA, Thordardottir S, Fredrix H, Janssen L, Woestenenk R, Tel J, Joosten B, Cambi A, Heemskerk MHM, Franssen GM, Boerman OC, Bakker LBH, Jansen JH, Schaap N, Dolstra H, Hobo W. CLEC12A-Mediated Antigen Uptake and Cross-Presentation by Human Dendritic Cell Subsets Efficiently Boost Tumor-Reactive T Cell Responses. THE JOURNAL OF IMMUNOLOGY 2016; 197:2715-25. [DOI: 10.4049/jimmunol.1600011] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 07/31/2016] [Indexed: 01/19/2023]
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Targeting dendritic cells: a promising strategy to improve vaccine effectiveness. Clin Transl Immunology 2016; 5:e66. [PMID: 27217957 PMCID: PMC4815026 DOI: 10.1038/cti.2016.6] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 02/11/2016] [Accepted: 02/12/2016] [Indexed: 12/13/2022] Open
Abstract
Dendritic cell (DC) targeting is a novel strategy to enhance vaccination efficacy. This approach is based on the in situ delivery of antigen via antibodies that are specific for endocytic receptors expressed at the surface of DCs. Here we review the complexity of the DC subsets and the antigen presentation pathways that need to be considered in the settings of DC targeting. We also summarize current knowledge about antigen delivery to DCs via DEC-205, Clec9A and Clec12A, receptor targets that strongly enhance cellular and humoral immune responses. Finally, we discuss the intracellular trafficking criteria of the targeted receptors that may impact their effectiveness as DC targets.
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Schneider T, Hoffmann H, Dienemann H, Herpel E, Heussel CP, Enk AH, Ring S, Mahnke K. Immune Response After Radiofrequency Ablation and Surgical Resection in Nonsmall Cell Lung Cancer. Semin Thorac Cardiovasc Surg 2016; 28:585-592. [PMID: 28043482 DOI: 10.1053/j.semtcvs.2016.02.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2016] [Indexed: 11/11/2022]
Abstract
The objective includes radiofrequency ablation (RFA) of a cancerous nodule results in immunogenic cell death. Tumor antigens are presented and the inflammatory environment may help stimulate adaptive and innate antitumor immunity. The objective of this study was to investigate the immune response following RFA and subsequent surgical resection in early stage non-small cell lung cancer (NSCLC). In methods, a single-session approach of computed tomography-guided tumor biopsy with immediate frozen section (and proof of NSCLC) was performed followed by RFA of the tumor in 4 patients with a solitary pulmonary nodule. Blood samples were collected before RFA and 3 days thereafter. All patients underwent radical surgical resection by video-assisted thoracoscopic lobectomy 8 days following RFA. In results, intense infiltrations of CD4+ and CD8+ lymphocytes were found along the perimeter of the RFA-treated tumor tissue, whereas the central tumor areas remained devoid of lymphocytes. In the peripheral blood, the frequency of proinflammatory, immunostimulatory IFNγ-secreting, and immunostimulatory BDCA-3+/B7-H3- dendritic cells increased after RFA. Furthermore, a significant increase in T-cell proliferation was detected in T-cell assays after RFA and tumor resection. In this article, a local and systemic immune response subsequent to RFA and complete surgical resection in patients with NSCLC was identified for the first time. Treatment of patients with NSCLC with RFA and surgery leads to an activated and highly T-cell-stimulatory phenotype of dendritic cells, which may promote long-term immunity against NSCLC. The data suggest that the RFA-induced necrotic tumor debris can serve as an in situ antigen source to induce an autologous antitumor immune response.
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Affiliation(s)
- Thomas Schneider
- Department of Thoracic Surgery, St. Vincentius Kliniken, Karlsruhe, Germany; Department of Thoracic Surgery, Thoraxklinik, Heidelberg University, Heidelberg, Germany
| | - Hans Hoffmann
- Department of Thoracic Surgery, Thoraxklinik, Heidelberg University, Heidelberg, Germany.
| | - Hendrik Dienemann
- Department of Thoracic Surgery, Thoraxklinik, Heidelberg University, Heidelberg, Germany
| | - Ester Herpel
- Institute of Pathology, Heidelberg University, Heidelberg, Germany
| | - Claus Peter Heussel
- Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik, Heidelberg University, Heidelberg, Germany
| | - Alexander H Enk
- Department of Dermatology, Heidelberg University, Heidelberg, Germany
| | - Sabine Ring
- Department of Dermatology, Heidelberg University, Heidelberg, Germany
| | - Karsten Mahnke
- Department of Dermatology, Heidelberg University, Heidelberg, Germany
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Dillmann C, Ringel C, Ringleb J, Mora J, Olesch C, Fink AF, Roberts E, Brüne B, Weigert A. S1PR4 Signaling Attenuates ILT 7 Internalization To Limit IFN-α Production by Human Plasmacytoid Dendritic Cells. THE JOURNAL OF IMMUNOLOGY 2016; 196:1579-90. [PMID: 26783340 DOI: 10.4049/jimmunol.1403168] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 12/09/2015] [Indexed: 12/14/2022]
Abstract
Plasmacytoid dendritic cells (pDCs) produce large amounts of type I IFN in response to TLR7/9 ligands. This conveys antiviral effects, activates other immune cells (NK cells, conventional DCs, B, and T cells), and causes the induction and expansion of a strong inflammatory response. pDCs are key players in various type I IFN-driven autoimmune diseases such as systemic lupus erythematosus or psoriasis, but pDCs are also involved in (anti-)tumor immunity. The sphingolipid sphingosine-1-phosphate (S1P) signals through five G-protein-coupled receptors (S1PR1-5) to regulate, among other activities, immune cell migration and activation. The present study shows that S1P stimulation of human, primary pDCs substantially decreases IFN-α production after TLR7/9 activation with different types of CpG oligodeoxynucleotides or tick-borne encephalitis vaccine, which occurred in an S1PR4-dependent manner. Mechanistically, S1PR4 activation preserves the surface expression of the human pDC-specific inhibitory receptor Ig-like transcript 7. We provide novel information that Ig-like transcript 7 is rapidly internalized upon receptor-mediated endocytosis of TLR7/9 ligands to allow high IFN-α production. This is antagonized by S1PR4 signaling, thus decreasing TLR-induced IFN-α secretion. At a functional level, attenuated IFN-α production failed to alter Ag-driven T cell proliferation in pDC-dependent T cell activation assays, but shifted cytokine production of T cells from a Th1 (IFN-γ) to a regulatory (IL-10) profile. In conclusion, S1PR4 agonists block human pDC activation and may therefore be a promising tool to restrict pathogenic IFN-α production.
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Affiliation(s)
- Christina Dillmann
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
| | - Christian Ringel
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
| | - Julia Ringleb
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
| | - Javier Mora
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
| | - Catherine Olesch
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
| | - Annika F Fink
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
| | - Edward Roberts
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Bernhard Brüne
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
| | - Andreas Weigert
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, 60590 Frankfurt, Germany; and
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Zhao H, Li C, Beck BH, Zhang R, Thongda W, Davis DA, Peatman E. Impact of feed additives on surface mucosal health and columnaris susceptibility in channel catfish fingerlings, Ictalurus punctatus. FISH & SHELLFISH IMMUNOLOGY 2015; 46:624-637. [PMID: 26164837 DOI: 10.1016/j.fsi.2015.07.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 06/26/2015] [Accepted: 07/06/2015] [Indexed: 06/04/2023]
Abstract
One of the highest priority areas for improvement in aquaculture is the development of dietary additives and formulations which provide for complete mucosal health and protection of fish raised in intensive systems. Far greater attention has been paid to dietary impact on gut health than to protective effects at other mucosal surfaces such as skin and gill. These exterior surfaces, however, are important primary targets for pathogen attachment and invasion. Flavobacterium columnare, the causative agent of columnaris disease, is among the most prevalent of all freshwater disease-causing bacteria, impacting global aquaculture of catfish, salmonids, baitfish and aquaria-trade species among others. This study evaluated whether the feeding of a standard catfish diet supplemented with Alltech dietary additives Actigen(®), a concentrated source of yeast cell wall-derived material and/or Allzyme(®) SSF, a fermented strain of Aspergillus niger, could offer protection against F. columnare mortality. A nine-week feeding trial of channel catfish fingerlings with basal diet (B), B + Allzyme(®) SSF, B + Actigen(®) and B + Actigen(®)+Allzyme(®) SSF revealed good growth in all conditions (FCR < 1.0), but no statistical differences in growth between the treatments were found. At nine weeks, based on pre-challenge trial results, basal, B + Actigen(®), and B + Allzyme(®) SSF groups of fish were selected for further challenges with F. columnare. Replicated challenge with a virulent F. columnare strain, revealed significantly longer median days to death in B + Allzyme(®) SSF and B + Actigen(®) when compared with the basal diet (P < 0.05) and significantly higher survival following the eight day challenge period in B + Actigen(®) when compared with the other two diets (P < 0.05). Given the superior protection provided by the B + Actigen(®) diet, we carried out transcriptomic comparison of gene expression of fish fed that diet and the basal diet before and after columnaris challenge using high-throughput RNA-seq. Pathway and enrichment analyses revealed changes in mannose receptor DEC205 and IL4 signaling at 0 h (prior to challenge) which likely explain a dramatic divergence in expression profiles between the two diets soon after pathogen challenge (8 h). Dietary mannose priming resulted in reduced expression of inflammatory cytokines, shifting response patterns instead to favor resolution and repair. Our results indicate that prebiotic dietary additives may provide protection extending beyond the gut to surface mucosa.
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Affiliation(s)
- Honggang Zhao
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Chao Li
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao 266109, China
| | - Benjamin H Beck
- United States Department of Agriculture, Agricultural Research Service, Stuttgart National Aquaculture Research Center, Stuttgart, AR 72160, USA
| | - Ran Zhang
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Wilawan Thongda
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - D Allen Davis
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Eric Peatman
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA.
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Srinivas M, Tel J, Schreibelt G, Bonetto F, Cruz LJ, Amiri H, Heerschap A, Figdor CG, de Vries IJM. PLGA-encapsulated perfluorocarbon nanoparticles for simultaneous visualization of distinct cell populations by 19F MRI. Nanomedicine (Lond) 2015; 10:2339-48. [DOI: 10.2217/nnm.15.76] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: In vivo imaging using 19F MRI is advantageous, due to its ability to quantify cell numbers, but is limited for a lack of suitable labels. Here, we formulate two stable and clinically applicable labels for tracking two populations of primary human dendritic cells (DCs) simultaneously. Materials & methods: Plasmacytoid and myeloid DCs are able to take up sufficient nanoparticles (200 nm) for imaging (1012 19F's per cell), despite being relatively nonphagocytic. Results: Clinically relevant numbers of labeled DCs could be imaged in about 10 min, even on a clinical scanner. Conclusion: We demonstrate the use of perfluorocarbon nanoparticles for simultaneous 19F MRI of distinct cell populations in a clinical setting, without spectroscopic imaging.
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Affiliation(s)
- Mangala Srinivas
- Department of Tumor Immunology, & Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Jurjen Tel
- Department of Tumor Immunology, & Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Gerty Schreibelt
- Department of Tumor Immunology, & Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Fernando Bonetto
- Instituto de Física del Litoral (CONICET – UNL), Santa Fe, Argentina
| | - Luis-Javier Cruz
- Molecular Imaging, Leiden University Medical Center, Leiden, The Netherlands
| | - Houshang Amiri
- Department of Radiology, Radboud University Medical Center, Nijmegen, The Netherlands
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Arend Heerschap
- Department of Radiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Carl G Figdor
- Department of Tumor Immunology, & Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - I Jolanda M de Vries
- Department of Tumor Immunology, & Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
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Sartorius R, D'Apice L, Trovato M, Cuccaro F, Costa V, De Leo MG, Marzullo VM, Biondo C, D'Auria S, De Matteis MA, Ciccodicola A, De Berardinis P. Antigen delivery by filamentous bacteriophage fd displaying an anti-DEC-205 single-chain variable fragment confers adjuvanticity by triggering a TLR9-mediated immune response. EMBO Mol Med 2015; 7:973-88. [PMID: 25888235 PMCID: PMC4520660 DOI: 10.15252/emmm.201404525] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Filamentous bacteriophage fd particles delivering antigenic determinants via DEC-205 (fdsc-αDEC) represent a powerful delivery system that induces CD8+ T-cell responses even when administered in the absence of adjuvants or maturation stimuli for dendritic cells. In order to investigate the mechanisms of this activity, RNA-Sequencing of fd-pulsed dendritic cells was performed. A significant differential expression of genes involved in innate immunity, co-stimulation and cytokine production was observed. In agreement with these findings, we demonstrate that induction of proinflammatory cytokines and type I interferon by fdsc-αDEC was MYD88 mediated and TLR9 dependent. We also found that fdsc-αDEC is delivered into LAMP-1-positive compartments and co-localizes with TLR9. Thus, phage particles containing a single-strand DNA genome rich in CpG motifs delivered via DEC-205 are able to intercept and trigger the active TLR9 innate immune receptor into late endosome/lysosomes and to enhance the immunogenicity of the displayed antigenic determinants. These findings make fd bacteriophage a valuable tool for immunization without administering exogenous adjuvants.
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Affiliation(s)
- Rossella Sartorius
- Institute of Protein Biochemistry, National Council of Research, Naples, Italy
| | - Luciana D'Apice
- Institute of Protein Biochemistry, National Council of Research, Naples, Italy
| | - Maria Trovato
- Institute of Protein Biochemistry, National Council of Research, Naples, Italy
| | - Fausta Cuccaro
- Institute of Protein Biochemistry, National Council of Research, Naples, Italy
| | - Valerio Costa
- Institute of Genetics and Biophysics A. Buzzati-Traverso, National Council of Research, Naples, Italy
| | | | - Vincenzo Manuel Marzullo
- Institute of Protein Biochemistry, National Council of Research, Naples, Italy Telethon Institute of Genetics and Medicine, Pozzuoli (NA), Italy
| | - Carmelo Biondo
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, University of Messina, Messina, Italy
| | - Sabato D'Auria
- Institute of Protein Biochemistry, National Council of Research, Naples, Italy Institute of Food Science, National Council of Research, Avellino, Italy
| | | | - Alfredo Ciccodicola
- Institute of Genetics and Biophysics A. Buzzati-Traverso, National Council of Research, Naples, Italy Department of Science and Technology, University Parthenope of Naples, Naples, Italy
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Alonso A, Domènech E, Julià A, Panés J, García-Sánchez V, Mateu PN, Gutiérrez A, Gomollón F, Mendoza JL, Garcia-Planella E, Barreiro-de Acosta M, Muñoz F, Vera M, Saro C, Esteve M, Andreu M, Chaparro M, Manyé J, Cabré E, López-Lasanta M, Tortosa R, Gelpí JL, García-Montero AC, Bertranpetit J, Absher D, Myers RM, Marsal S, Gisbert JP. Identification of risk loci for Crohn's disease phenotypes using a genome-wide association study. Gastroenterology 2015; 148:794-805. [PMID: 25557950 DOI: 10.1053/j.gastro.2014.12.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 12/16/2014] [Accepted: 12/19/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Crohn's disease is a highly heterogeneous inflammatory bowel disease comprising multiple clinical phenotypes. Genome-wide association studies (GWASs) have associated a large number of loci with disease risk but have not associated any specific genetic variants with clinical phenotypes. We performed a GWAS of clinical phenotypes in Crohn's disease. METHODS We genotyped 576,818 single-nucleotide polymorphisms in a well-characterized cohort of 1090 Crohn's disease patients of European ancestry. We assessed their association with 17 phenotypes of Crohn's disease (based on disease location, disease behavior, disease course, age at onset, and extraintestinal manifestations). A total of 57 markers with strong associations to Crohn's disease phenotypes (P < 2 × 10(-4)) were subsequently analyzed in an independent replication cohort of 1296 patients of European ancestry. RESULTS We replicated the association of 4 loci with different Crohn's disease phenotypes. Variants in MAGI1, CLCA2, 2q24.1, and LY75 loci were associated with a complicated stricturing disease course (Pcombined = 2.01 × 10(-8)), disease location (Pcombined = 1.3 × 10(-6)), mild disease course (Pcombined = 5.94 × 10(-7)), and erythema nodosum (Pcombined = 2.27 × 10(-6)), respectively. CONCLUSIONS In a GWAS, we associated 4 loci with clinical phenotypes of Crohn's disease. These findings indicate a genetic basis for the clinical heterogeneity observed for this inflammatory bowel disease.
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Affiliation(s)
- Arnald Alonso
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona, Spain; Department of Enginyeria de Sistemes, Automática i Informàtica Industrial, Polytechnic University of Catalonia, Barcelona, Spain
| | - Eugeni Domènech
- Gastroenterology and Hepatology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain.
| | - Antonio Julià
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Julián Panés
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Gastroenterology Department, Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Valle García-Sánchez
- Digestive System Service, Universidad de Córdoba/Instituto Maimónides de Investigación Biomédica de Córdoba/Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Pilar Nos Mateu
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Digestive Medicine Service, Hospital la Fe, Valencia, Spain
| | - Ana Gutiérrez
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Gastroenterology Service, Hospital General de Alicante, Alicante, Spain
| | - Fernando Gomollón
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Digestive System Service, Hospital Clínico Universitario, Zaragoza, Spain
| | - Juan L Mendoza
- Gastroenterology Service, Hospital Clínico San Carlos, Madrid, Spain
| | | | | | - Fernando Muñoz
- Gastroenterology Service, Complejo Hospitalario de León, León, Spain
| | - Maribel Vera
- Gastroenterology Service, Hospital Universitario Puerta de Hierro, Madrid, Spain
| | - Cristina Saro
- Internal Medicine Service, Hospital de Cabueñes, Gijón, Spain
| | - Maria Esteve
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Gastroenterology Service, Hospital Universitari Mutua de Terrassa, Barcelona, Spain
| | - Montserrat Andreu
- Department of Gastroenterology, Institut Hospital del Mar d'Investigacions Mèdiques, Institute of Research Hospital del Mar, Parc de Salut Mar, Pompeu Fabra University, Barcelona, Spain
| | - Maria Chaparro
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Gastroenterology Service, Hospital Universitario de la Princesa and Instituto de Investigación Sanitaria Princesa, Madrid, Spain
| | - Josep Manyé
- Gastroenterology and Hepatology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain
| | - Eduard Cabré
- Gastroenterology and Hepatology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain
| | - María López-Lasanta
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Raül Tortosa
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Josep Lluís Gelpí
- Life Sciences, Barcelona Supercomputing Center, National Institute of Bioinformatics, Barcelona, Spain; Department of Biochemistry and Molecular Biology, University of Barcelona, Barcelona, Spain
| | | | | | - Devin Absher
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama
| | - Richard M Myers
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama
| | - Sara Marsal
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona, Spain.
| | - Javier P Gisbert
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Gastroenterology Service, Hospital Universitario de la Princesa and Instituto de Investigación Sanitaria Princesa, Madrid, Spain
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35
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Karrich JJ, Jachimowski LCM, Uittenbogaart CH, Blom B. The plasmacytoid dendritic cell as the Swiss army knife of the immune system: molecular regulation of its multifaceted functions. THE JOURNAL OF IMMUNOLOGY 2015; 193:5772-8. [PMID: 25480956 DOI: 10.4049/jimmunol.1401541] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Plasmacytoid dendritic cells (pDC) have been regarded as the "professional type I IFN-producing cells" of the immune system following viral recognition that relies on the expression of TLR7 and TLR9. Furthermore, pDC link the innate and adaptive immune systems via cytokine production and Ag presentation. More recently, their ability to induce tolerance and cytotoxicity has been added to their "immune skills." Such a broad range of actions, resembling the diverse functional features of a Swiss army knife, requires strong and prompt molecular regulation to prevent detrimental effects, including autoimmune pathogenesis or tumor escape. Over the last decades, we and other investigators have started to unravel some aspects of the signaling pathways that regulate the various functions of human pDC. In this article, we review aspects of the molecular regulatory mechanisms to control pDC function in light of their multifaceted roles during immunity, autoimmunity, and cancer.
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Affiliation(s)
- Julien J Karrich
- Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Loes C M Jachimowski
- Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Christel H Uittenbogaart
- Department of Pediatrics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095; and Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095
| | - Bianca Blom
- Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands;
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36
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Sei JJ, Ochoa AS, Bishop E, Barlow JW, Golde WT. Phenotypic, ultra-structural, and functional characterization of bovine peripheral blood dendritic cell subsets. PLoS One 2014; 9:e109273. [PMID: 25295753 PMCID: PMC4190170 DOI: 10.1371/journal.pone.0109273] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 09/01/2014] [Indexed: 11/18/2022] Open
Abstract
Dendritic cells (DC) are multi-functional cells that bridge the gap between innate and adaptive immune systems. In bovine, significant information is lacking on the precise identity and role of peripheral blood DC subsets. In this study, we identify and characterize bovine peripheral blood DC subsets directly ex vivo, without further in vitro manipulation. Multi-color flow cytometric analysis revealed that three DC subsets could be identified. Bovine plasmacytoid DC were phenotypically identified by a unique pattern of cell surface protein expression including CD4, exhibited an extensive endoplasmic reticulum and Golgi apparatus, efficiently internalized and degraded exogenous antigen, and were the only peripheral blood cells specialized in the production of type I IFN following activation with Toll-like receptor (TLR) agonists. Conventional DC were identified by expression of a different pattern of cell surface proteins including CD11c, MHC class II, and CD80, among others, the display of extensive dendritic protrusions on their plasma membrane, expression of very high levels of MHC class II and co-stimulatory molecules, efficient internalization and degradation of exogenous antigen, and ready production of detectable levels of TNF-alpha in response to TLR activation. Our investigations also revealed a third novel DC subset that may be a precursor of conventional DC that were MHC class II+ and CD11c−. These cells exhibited a smooth plasma membrane with a rounded nucleus, produced TNF-alpha in response to TLR-activation (albeit lower than CD11c+ DC), and were the least efficient in internalization/degradation of exogenous antigen. These studies define three bovine blood DC subsets with distinct phenotypic and functional characteristics which can be analyzed during immune responses to pathogens and vaccinations of cattle.
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Affiliation(s)
- Janet J. Sei
- Plum Island Animal Disease Center, Agricultural Research Service, USDA, Greenport, New York, United States of America
- Department of Animal Sciences, University of Vermont, Burlington, Vermont, United States of America
| | - Amanda S. Ochoa
- Department of Animal Sciences, University of Vermont, Burlington, Vermont, United States of America
| | - Elizabeth Bishop
- Plum Island Animal Disease Center, Agricultural Research Service, USDA, Greenport, New York, United States of America
| | - John W. Barlow
- Department of Animal Sciences, University of Vermont, Burlington, Vermont, United States of America
| | - William T. Golde
- Plum Island Animal Disease Center, Agricultural Research Service, USDA, Greenport, New York, United States of America
- * E-mail:
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37
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Kastenmüller W, Kastenmüller K, Kurts C, Seder RA. Dendritic cell-targeted vaccines--hope or hype? Nat Rev Immunol 2014; 14:705-11. [PMID: 25190285 DOI: 10.1038/nri3727] [Citation(s) in RCA: 162] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The development of an effective vaccine that elicits a strong and durable T cell response against intracellular pathogens and cancer is a challenge. One strategy to enhance the effectiveness of vaccination is by targeting dendritic cells (DCs). In this Opinion article, we discuss existing DC-targeting approaches that induce adaptive immunity. We highlight the crucial issues that need to be addressed to move the field forward and discuss whether targeting DCs could be better than current vaccine approaches.
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Affiliation(s)
| | - Kathrin Kastenmüller
- Institute of Experimental Immunology and the Department of General Practice and Family Medicine, University of Bonn, 53105 Bonn, Germany
| | - Christian Kurts
- Institute of Experimental Immunology, University of Bonn, 53105 Bonn, Germany
| | - Robert A Seder
- Cellular Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892-3005, USA
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38
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Lundberg K, Rydnert F, Greiff L, Lindstedt M. Human blood dendritic cell subsets exhibit discriminative pattern recognition receptor profiles. Immunology 2014; 142:279-88. [PMID: 24444310 DOI: 10.1111/imm.12252] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 01/13/2014] [Accepted: 01/13/2014] [Indexed: 12/23/2022] Open
Abstract
Dendritic cells (DCs) operate as the link between innate and adaptive immunity. Their expression of pattern recognition receptors (PRRs), such as Toll-like receptors (TLRs) and C-type lectin receptors (CLRs), enables antigen recognition and mediates appropriate immune responses. Distinct subsets of human DCs have been identified; however their expression of PRRs is not fully clarified. Expressions of CLRs by DC subpopulations, in particular, remain elusive. This study aimed to identify and compare PRR expressions on human blood DC subsets, including CD1c(+) , CD141(+) and CD16(+) myeloid DCs and CD123(+) plasmacytoid DCs, in order to understand their capacity to recognize different antigens as well as their responsiveness to PRR-directed targeting. Whole blood was obtained from 13 allergic and six non-allergic individuals. Mononuclear cells were purified and multi-colour flow cytometry was used to assess the expression of 10 CLRs and two TLRs on distinct DC subsets. PRR expression levels were shown to differ between DC subsets for each PRR assessed. Furthermore, principal component analysis and random forest test demonstrated that the PRR profiles were discriminative between DC subsets. Interestingly, CLEC9A was expressed at lower levels by CD141(+) DCs from allergic compared with non-allergic donors. The subset-specific PRR expression profiles suggests individual responsiveness to PRR-targeting and supports functional specialization.
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39
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Abstract
Despite significant effort, the development of effective vaccines inducing strong and durable T-cell responses against intracellular pathogens and cancer cells has remained a challenge. The initiation of effector CD8+ T-cell responses requires the presentation of peptides derived from internalized antigen on class I major histocompatibility complex molecules by dendritic cells (DCs) in a process called cross-presentation. A current strategy to enhance the effectiveness of vaccination is to deliver antigens directly to DCs. This is done via selective targeting of antigen using monoclonal antibodies directed against endocytic receptors on the surface of the DCs. In this review, we will discuss considerations relevant to the design of such vaccines: the existence of DC subsets with specialized functions, the impact of the antigen intracellular trafficking on cross-presentation, and the influence of maturation signals received by DCs on the outcome of the immune response.
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Affiliation(s)
- Lillian Cohn
- Laboratory of Molecular Immunology, Rockefeller University , New York, NY , USA
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40
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Chappell CP, Giltiay NV, Draves KE, Chen C, Hayden-Ledbetter MS, Shlomchik MJ, Kaplan DH, Clark EA. Targeting antigens through blood dendritic cell antigen 2 on plasmacytoid dendritic cells promotes immunologic tolerance. THE JOURNAL OF IMMUNOLOGY 2014; 192:5789-5801. [PMID: 24829416 DOI: 10.4049/jimmunol.1303259] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The C-type lectin receptor blood dendritic cell Ag 2 (BDCA2) is expressed exclusively on human plasmacytoid DCs (pDCs) and plays a role in Ag capture, internalization, and presentation to T cells. We used transgenic mice that express human BDCA2 and anti-BDCA2 mAbs to deliver Ags directly to BDCA2 on pDCs in vivo. Targeting Ag to pDCs in this manner resulted in significant suppression of Ag-specific CD4(+) T cell and Ab responses upon secondary exposure to Ag in the presence of adjuvant. Suppression of Ab responses required both a decrease in effector CD4(+) T cells and preservation of Foxp3(+) regulatory T cells (Tregs). Reduction in Treg numbers following Ag delivery to BDCA2 restored both CD4(+) T cell activation and Ab responses, demonstrating that Tregs were required for the observed tolerance. Our results demonstrate that Ag delivery to pDCs through BDCA2 is an effective method to induce immunological tolerance, which may be useful for treating autoimmune diseases or to inhibit unwanted Ab responses.
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Affiliation(s)
- Craig P Chappell
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA
| | - Natalia V Giltiay
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA
| | - Kevin E Draves
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA
| | | | | | - Mark J Shlomchik
- Department of Immunology, School of Medicine, University of Pittsburg, Pittsburg, PA, USA
| | - Daniel H Kaplan
- Department of Dermatology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Edward A Clark
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA.,Department of Microbiology, School of Medicine, University of Washington, Seattle, WA, USA
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41
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van Montfoort N, van der Aa E, Woltman AM. Understanding MHC class I presentation of viral antigens by human dendritic cells as a basis for rational design of therapeutic vaccines. Front Immunol 2014; 5:182. [PMID: 24795724 PMCID: PMC4005948 DOI: 10.3389/fimmu.2014.00182] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 04/07/2014] [Indexed: 12/24/2022] Open
Abstract
Effective viral clearance requires the induction of virus-specific CD8+ cytotoxic T lymphocytes (CTL). Since dendritic cells (DC) have a central role in initiating and shaping virus-specific CTL responses, it is important to understand how DC initiate virus-specific CTL responses. Some viruses can directly infect DC, which theoretically allow direct presentation of viral antigens to CTL, but many viruses target other cells than DC and thus the host depends on the cross-presentation of viral antigens by DC to activate virus-specific CTL. Research in mouse models has highly enhanced our understanding of the mechanisms underlying cross-presentation and the dendritic cells (DC) subsets involved, however, these results cannot be readily translated toward the role of human DC in MHC class I-antigen presentation of human viruses. Here, we summarize the insights gained in the past 20 years on MHC class I presentation of viral antigen by human DC and add to the current debate on the capacities of different human DC subsets herein. Furthermore, possible sources of viral antigens and essential DC characteristics for effective induction of virus-specific CTL are evaluated. We conclude that cross-presentation is not only an efficient mechanism exploited by DC to initiate immunity to viruses that do not infect DC but also to viruses that do infect DC, because cross-presentation has many conceptual advantages and bypasses direct immune modulatory effects of the virus on its infected target cells. Since knowledge on the mechanism of viral antigen presentation and the preferred DC subsets is crucial for rational vaccine design, the obtained insights are very instrumental for the development of effective anti-viral immunotherapy.
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Affiliation(s)
- Nadine van Montfoort
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam , Rotterdam , Netherlands
| | - Evelyn van der Aa
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam , Rotterdam , Netherlands
| | - Andrea M Woltman
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam , Rotterdam , Netherlands
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42
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Bonaccorsi I, Morandi B, Antsiferova O, Costa G, Oliveri D, Conte R, Pezzino G, Vermiglio G, Anastasi GP, Navarra G, Münz C, Di Carlo E, Mingari MC, Ferlazzo G. Membrane transfer from tumor cells overcomes deficient phagocytic ability of plasmacytoid dendritic cells for the acquisition and presentation of tumor antigens. THE JOURNAL OF IMMUNOLOGY 2013; 192:824-32. [PMID: 24337377 DOI: 10.4049/jimmunol.1301039] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The potential contribution of plasmacytoid dendritic cells (pDCs) in the presentation of tumor cell Ags remains unclear, and some controversies exist with regard to the ability of pDCs to phagocytose cell-derived particulate Ags and cross-present them to MHC class I-restricted T lymphocytes. In this study, we show that human pDCs, although inefficient in the internalization of cell membrane fragments by phagocytosis, can efficiently acquire membrane patches and associated molecules from cancer cells of different histotypes. The transfer of membrane patches to pDCs occurred in a very short time and required cell-to-cell contact. Membrane transfer also included intact HLA complexes, and the acquired Ags could be efficiently recognized on pDCs by tumor-specific CD8(+) T cells. Remarkably, pDCs isolated from human colon cancer tissues displayed a strong surface expression of epithelial cell adhesion molecule, indicating that the exchange of exogenous Ags between pDCs and tumor cells also can occur in vivo. These data demonstrate that pDCs are well suited to acquire membrane patches from contiguous tumor cells by a cell-to-cell contact-dependent mechanism that closely resembles "trogocytosis." This phenomenon may allow pDCs to proficiently present tumor cell-derived Ags, despite limited properties of endophagocytosis.
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Affiliation(s)
- Irene Bonaccorsi
- Laboratory of Immunology and Biotherapy, Department of Human Pathology, University of Messina, 98125 Messina, Italy
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43
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Vitamin D controls murine and human plasmacytoid dendritic cell function. J Invest Dermatol 2013; 134:1255-1264. [PMID: 24352045 DOI: 10.1038/jid.2013.501] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 10/24/2013] [Accepted: 11/01/2013] [Indexed: 12/22/2022]
Abstract
Topical application of the vitamin D (VitD) analog calcipotriol is a highly effective standard treatment modality of psoriatic skin lesions. However, the immune modulatory effects of the treatment are incompletely understood. VitD is well known to induce tolerogenic responses in conventional dendritic cells (cDCs). Plasmacytoid DCs (pDCs) comprise a specialized, naturally occurring DC subset known to be important in autoimmune diseases including psoriasis. pDCs from the blood rapidly infiltrate psoriatic skin and are key to the initiation of the immune-mediated pathogenesis of the disease. We now demonstrate that pDCs express various proteins of the VitD receptor (VDR) pathway, including the VitD-metabolizing enzymes Cyp27B1 and Cyp24A1, and that VDR is transcriptionally active in pDCs. Moreover, VitD impairs the capacity of murine and human pDCs to induce T-cell proliferation and secretion of the T-helper 1 cytokine IFNγ. The inhibitory effect of VitD is dependent on the expression of the VDR in the DCs. This study demonstrates that VitD signaling can act as a natural inhibitory mechanism on both cDCs and pDCs, which may instigate the development of VitD-based therapeutic applications for psoriasis and other inflammatory skin diseases.
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44
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Mathan TSMM, Figdor CG, Buschow SI. Human plasmacytoid dendritic cells: from molecules to intercellular communication network. Front Immunol 2013; 4:372. [PMID: 24282405 PMCID: PMC3825182 DOI: 10.3389/fimmu.2013.00372] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 10/29/2013] [Indexed: 12/18/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are a specific subset of naturally occurring dendritic cells, that secrete large amounts of Type I interferon and play an important role in the immune response against viral infection. Several studies have highlighted that they are also effective antigen presenting cells, making them an interesting target for immunotherapy against cancer. However, the modes of action of pDCs are not restricted to antigen presentation and IFN secretion alone. In this review we will highlight a selection of cell surface proteins expressed by human pDCs that may facilitate communication with other immune cells, and we will discuss the implications of these molecules for pDC-driven immune responses.
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Affiliation(s)
- Till S M Manuel Mathan
- Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre , Nijmegen , Netherlands
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45
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Tel J, Sittig SP, Blom RAM, Cruz LJ, Schreibelt G, Figdor CG, de Vries IJM. Targeting Uptake Receptors on Human Plasmacytoid Dendritic Cells Triggers Antigen Cross-Presentation and Robust Type I IFN Secretion. THE JOURNAL OF IMMUNOLOGY 2013; 191:5005-12. [DOI: 10.4049/jimmunol.1300787] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Rescigno M. Plasmacytoid DCs are gentle guardians of tonsillar epithelium. Eur J Immunol 2013; 43:1142-6. [PMID: 23616114 DOI: 10.1002/eji.201343533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 03/18/2013] [Accepted: 03/25/2013] [Indexed: 01/31/2023]
Abstract
The outcome of the interaction between plasmacytoid dendritic cells (pDCs) and bacteria has been very controversial: pDCs have been reported not to be activated by extracellular bacteria, to be activated but to only produce TNF-α and IL-6, or to be activated and produce IFN-α, the hallmark of pDC activation, but only if the bacteria have first been opsonized. In this issue of the European Journal of Immunology, Soumelis and colleagues [Eur. J. Immunol. 2013. 43: 1264-1273] unequivocally show that both blood and tonsillar pDCs are fully activated by bacteria and can produce IFN-α. They also show that pDCs are found in the stratified mucosal epithelium in human tonsils, and are "educated" by tonsillar epithelial cells not to release inflammatory cytokines, despite still being capable of activating T cells, albeit with no impact on T-cell polarization. Hence, pDCs can respond to bacteria but can be educated by epithelial cells to remain anergic to potential inflammatory signals. These findings support a mechanism by which intraepithelial pDCs, which are exposed to the microbiota colonizing the upper respiratory tract, remain capable of initiating immunity without overreacting to microbial stimulation.
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Affiliation(s)
- Maria Rescigno
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy.
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47
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Sandgren KJ, Smed-Sörensen A, Forsell MN, Soldemo M, Adams WC, Liang F, Perbeck L, Koup RA, Wyatt RT, Karlsson Hedestam GB, Loré K. Human plasmacytoid dendritic cells efficiently capture HIV-1 envelope glycoproteins via CD4 for antigen presentation. THE JOURNAL OF IMMUNOLOGY 2013; 191:60-9. [PMID: 23729440 DOI: 10.4049/jimmunol.1202489] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Advances in HIV-1 vaccine clinical trials and preclinical research indicate that the virus envelope glycoproteins (Env) are likely to be an essential component of a prophylactic vaccine. Efficient Ag uptake and presentation by dendritic cells (DCs) is important for strong CD4(+) Th cell responses and the development of effective humoral immune responses. In this study, we examined the capacity of distinct primary human DC subsets to internalize and present recombinant Env to CD4(+) T cells. Consistent with their specific receptor expression, skin DCs bound and internalized Env via C-type lectin receptors, whereas blood DC subsets, including CD1c(+) myeloid DCs, CD123(+) plasmacytoid DCs (PDCs), and CD141(+) DCs exhibited a restricted repertoire of C-type lectin receptors and relied on CD4 for uptake of Env. Despite a generally poor capacity for Ag uptake compared with myeloid DCs, the high expression of CD4 on PDCs allowed them to bind and internalize Env very efficiently. CD4-mediated uptake delivered Env to EEA1(+) endosomes that progressed to Lamp1(+) and MHC class II(+) lysosomes where internalized Env was degraded rapidly. Finally, all three blood DC subsets were able to internalize an Env-CMV pp65 fusion protein via CD4 and stimulate pp65-specific CD4(+) T cells. Thus, in the in vitro systems described in this paper, CD4-mediated uptake of Env is a functional pathway leading to Ag presentation, and this may therefore be a mechanism used by blood DCs, including PDCs, for generating immune responses to Env-based vaccines.
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Affiliation(s)
- Kerrie J Sandgren
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, 141 86 Stockholm, Sweden
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48
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Haas J, Frese KS, Park YJ, Keller A, Vogel B, Lindroth AM, Weichenhan D, Franke J, Fischer S, Bauer A, Marquart S, Sedaghat-Hamedani F, Kayvanpour E, Köhler D, Wolf NM, Hassel S, Nietsch R, Wieland T, Ehlermann P, Schultz JH, Dösch A, Mereles D, Hardt S, Backs J, Hoheisel JD, Plass C, Katus HA, Meder B. Alterations in cardiac DNA methylation in human dilated cardiomyopathy. EMBO Mol Med 2013; 5:413-29. [PMID: 23341106 PMCID: PMC3598081 DOI: 10.1002/emmm.201201553] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 11/15/2012] [Accepted: 11/29/2012] [Indexed: 12/25/2022] Open
Abstract
Dilated cardiomyopathies (DCM) show remarkable variability in their age of onset, phenotypic presentation, and clinical course. Hence, disease mechanisms must exist that modify the occurrence and progression of DCM, either by genetic or epigenetic factors that may interact with environmental stimuli. In the present study, we examined genome-wide cardiac DNA methylation in patients with idiopathic DCM and controls. We detected methylation differences in pathways related to heart disease, but also in genes with yet unknown function in DCM or heart failure, namely Lymphocyte antigen 75 (LY75), Tyrosine kinase-type cell surface receptor HER3 (ERBB3), Homeobox B13 (HOXB13) and Adenosine receptor A2A (ADORA2A). Mass-spectrometric analysis and bisulphite-sequencing enabled confirmation of the observed DNA methylation changes in independent cohorts. Aberrant DNA methylation in DCM patients was associated with significant changes in LY75 and ADORA2A mRNA expression, but not in ERBB3 and HOXB13. In vivo studies of orthologous ly75 and adora2a in zebrafish demonstrate a functional role of these genes in adaptive or maladaptive pathways in heart failure.
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MESH Headings
- Adult
- Aged
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Biopsy
- Cardiomyopathy, Dilated/genetics
- Cardiomyopathy, Dilated/metabolism
- Cardiomyopathy, Dilated/physiopathology
- Case-Control Studies
- Cluster Analysis
- DNA Methylation
- Epigenesis, Genetic
- Female
- Gene Expression Regulation
- Gene Knockdown Techniques
- Genetic Predisposition to Disease
- HEK293 Cells
- Humans
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- Male
- Mass Spectrometry
- Middle Aged
- Minor Histocompatibility Antigens
- Molecular Sequence Data
- Myocardium/metabolism
- Phenotype
- RNA, Messenger/metabolism
- Rats
- Receptor, Adenosine A2A/genetics
- Receptor, Adenosine A2A/metabolism
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Reproducibility of Results
- Sequence Analysis, DNA/methods
- Sequence Analysis, Protein
- Transfection
- Zebrafish/genetics
- Zebrafish/metabolism
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism
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Affiliation(s)
- Jan Haas
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Karen S Frese
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Yoon Jung Park
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ)Heidelberg, Germany
- Department of Nutritional Science and Food Management, Ewha Womans UniversitySeoul, South Korea
| | - Andreas Keller
- Department of Human Genetics, Saarland UniversityGermany
| | - Britta Vogel
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Anders M Lindroth
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Dieter Weichenhan
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Jennifer Franke
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Simon Fischer
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Andrea Bauer
- Division of Functional Genome Analysis, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Sabine Marquart
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | | | - Elham Kayvanpour
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Doreen Köhler
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Nadine M Wolf
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
- Medical Faculty Mannheim, Institute of Experimental and Clinical Pharmacology and Toxicology, Heidelberg UniversityMannheim, Germany
| | - Sarah Hassel
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Rouven Nietsch
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Thomas Wieland
- Medical Faculty Mannheim, Institute of Experimental and Clinical Pharmacology and Toxicology, Heidelberg UniversityMannheim, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/MannheimMannheim, Germany
| | - Philipp Ehlermann
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Jobst-Hendrik Schultz
- Department of General Internal Medicine and Psychosomatics, University Hospital HeidelbergHeidelberg, Germany
| | - Andreas Dösch
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Derliz Mereles
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Stefan Hardt
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
| | - Johannes Backs
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/MannheimHeidelberg, Germany
| | - Jörg D Hoheisel
- Division of Functional Genome Analysis, German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Christoph Plass
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ)Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/MannheimHeidelberg, Germany
| | - Hugo A Katus
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/MannheimHeidelberg, Germany
| | - Benjamin Meder
- Department of Internal Medicine III, University of HeidelbergHeidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/MannheimHeidelberg, Germany
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Ohtani H. Granuloma cells in chronic inflammation express CD205 (DEC205) antigen and harbor proliferating T lymphocytes: similarity to antigen-presenting cells. Pathol Int 2013; 63:85-93. [PMID: 23464965 PMCID: PMC3618377 DOI: 10.1111/pin.12036] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Accepted: 01/17/2013] [Indexed: 12/20/2022]
Abstract
Granulomas are classified as immune or foreign body granulomas. Of these, the immune granulomas, a hallmark of granulomatous inflammation, are closely related to cell-mediated immune responses. The aim of the present study is to characterize immune granuloma cells in 33 patients with granulomatous inflammation focusing on the expression of CD205 (DEC205), a cell surface marker of antigen presenting cells, and their spatial relationship to T cells. CD205 was frequently expressed by immune granuloma cells, in contrast to foreign body granuloma cells that lacked CD205 expression. T cells were not only distributed in a lymphocyte collar around the granuloma, but also present among the granuloma cells (termed 'intra-granuloma T cells'). Intra-granuloma T cells stained positive for Ki-67 (median positivity = 9.4%) by double immunostaining for CD3 and Ki-67. This indicated the presence of proliferative stimuli within the granuloma that could activate the intra-granuloma T cells. The labeling index of Ki-67 in intra-granuloma T cells was significantly higher than that of T cells in the lymphocyte collar (P < 0.0001) or T cells in the T cell zone (paracortex) of chronic tonsillitis or reactive lymphadenitis (P = 0.002). These data indicate a close similarity between immune granulomas and antigen presenting cells.
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Affiliation(s)
- Haruo Ohtani
- Department of Pathology, Mito Medical Center, National Hospital Organization, Ibaraki, Japan.
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50
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Human plasmacytoid dendritic cells efficiently cross-present exogenous Ags to CD8+ T cells despite lower Ag uptake than myeloid dendritic cell subsets. Blood 2013; 121:459-67. [DOI: 10.1182/blood-2012-06-435644] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Abstract
In human peripheral blood, 4 populations of dendritic cells (DCs) can be distinguished, plasmacytoid dendritic cells (pDCs) and CD16+, CD1c+, and BDCA-3+ myeloid DCs (mDCs), each with distinct functional characteristics. DCs have the unique capacity to cross-present exogenously encountered antigens (Ags) to CD8+ T cells. Here we studied the ability of all 4 blood DC subsets to take up, process, and present tumor Ags to T cells. Although pDCs take up less Ags than CD1c+ and BDCA3+ mDCs, pDCs induce potent Ag-specific CD4+ and CD8+ T-cell responses. We show that pDCs can preserve Ags for prolonged periods of time and on stimulation show strong induction of both MHC class I and II, which explains their efficient activation of both CD4+ and CD8+ T cells. Furthermore, pDCs cross-present soluble and cell-associated tumor Ags to cytotoxic T lymphocytes equally well as BDCA3+ mDCs. These findings, and the fact that pDCs outnumber BDCA3+ mDCs, both in peripheral blood and lymph nodes, together with their potent IFN-I production, known to activate both components of the innate and adaptive immune system, put human pDCs forward as potent activators of CD8+ T cells in antitumor responses. Our findings may therefore have important consequences for the development of antitumor immunotherapy.
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