1
|
Zhao M, He C, Zheng X, Jiang M, Xie Z, Wei H, Zhang S, Lin Y, Zhang J, Sun X. Self-adjuvanting polymeric nanovaccines enhance IFN production and cytotoxic T cell response. J Control Release 2024; 369:556-572. [PMID: 38580136 DOI: 10.1016/j.jconrel.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 04/01/2024] [Accepted: 04/01/2024] [Indexed: 04/07/2024]
Abstract
Vaccines represent one of the most powerful and cost-effective innovations for controlling a wide range of infectious diseases caused by various viruses and bacteria. Unlike mRNA and DNA-based vaccines, subunit vaccines carry no risk of insertional mutagenesis and can be lyophilized for convenient transportation and long-term storage. However, existing adjuvants are often associated with toxic effect and reactogenicity, necessitating expanding the repertoire of adjuvants with better biocompatibility, for instance, designing self-adjuvating polymeric carriers. We herein report a novel subunit vaccine delivery platform constructed via in situ free radical polymerization of C7A (2-(Hexamethyleneimino) ethyl methacrylate) and acrylamide around the surface of individual protein antigens. Using ovalbumin (OVA) as a model antigen, we observed substantial increases in both diameter (∼70 nm) and surface potential (-1.18 mV) following encapsulation, referred to as n(OVA)C7A. C7A's ultra pH sensitivity with a transition pH around 6.9 allows for rapid protonation in acidic environments. This property facilitates crucial processes such as endosomal escape and major histocompatibility complex (MHC)-I-mediated antigen presentation, culminating in the substantial CD8+ T cell activation. Additionally, compared to OVA nanocapsules without the C7A components and native OVA without modifications, we observed heightened B cell activation within the germinal center, along with remarkable increases in serum antibody and cytokine production. It's important to note that mounting evidence suggests that adjuvant effects, particularly its targeted stimulation of type I interferons (IFNs), can contribute to advantageous adaptive immune responses. Beyond its exceptional potency, the nanovaccine also demonstrated robust formation of immune memory and exhibited a favorable biosafety profile. These findings collectively underscore the promising potential of our nanovaccine in the realm of immunotherapy and vaccine development.
Collapse
Affiliation(s)
- Ming Zhao
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Chunting He
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
| | - Xueyun Zheng
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Min Jiang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
| | - Zhiqiang Xie
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
| | - Hongjiao Wei
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
| | - Shujun Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, PR China
| | - Ying Lin
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China.
| | - Jiaheng Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, PR China.
| | - Xun Sun
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China.
| |
Collapse
|
2
|
Friot A, Djebali S, Valsesia S, Parroche P, Dubois M, Baude J, Vandenesch F, Marvel J, Leverrier Y. Antigen specific activation of cytotoxic CD8 + T cells by Staphylococcus aureus infected dendritic cells. Front Cell Infect Microbiol 2023; 13:1245299. [PMID: 37953797 PMCID: PMC10639145 DOI: 10.3389/fcimb.2023.1245299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/22/2023] [Indexed: 11/14/2023] Open
Abstract
Staphylococcus aureus (S. aureus) is a pathogen associated with a wide variety of diseases, from minor to life-threatening infections. Antibiotic-resistant strains have emerged, leading to increasing concern about the control of S. aureus infections. The development of vaccines may be one way to overcome these resistant strains. However, S. aureus ability to internalize into cells - and thus to form a reservoir escaping humoral immunity - is a challenge for vaccine development. A role of T cells in the elimination of persistent S. aureus has been established in mice but it remains to be established if CD8+ T cells could display a cytotoxic activity against S. aureus infected cells. We examined in vitro the ability of CD8+ T cells to recognize and kill dendritic cells infected with S. aureus. We first evidenced that both primary mouse dendritic cells and DC2.4 cell line can be infected with S. aureus. We then generated a strain of S. aureus expressing a model CD8 epitope and transgenic F5 CD8+ T cells recognizing this model epitope were used as reporter T cells. In response to S. aureus-infected dendritic cells, F5 CD8+ T cells produced IFN-γ in an antigen-specific manner and displayed an increased ability to kill infected cells. Altogether, these results demonstrate that cells infected by S. aureus display bacteria-derived epitopes at their surface that are recognized by CD8+ T cells. This paves the way for the development of CD8+ T cell-based therapies against S. aureus.
Collapse
|
3
|
Jirmo AC, Grychtol R, Gaedcke S, Liu B, DeStefano S, Happle C, Halle O, Monteiro JT, Habener A, Breiholz OD, DeLuca D, Hansen G. Single cell RNA sequencing reveals distinct clusters of Irf8-expressing pulmonary conventional dendritic cells. Front Immunol 2023; 14:1127485. [PMID: 37251386 PMCID: PMC10213693 DOI: 10.3389/fimmu.2023.1127485] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/25/2023] [Indexed: 05/31/2023] Open
Abstract
A single population of interferon-regulatory factor 8 (Irf8)-dependent conventional dendritic cell (cDC type1) is considered to be responsible for both immunogenic and tolerogenic responses depending on the surrounding cytokine milieu. Here, we challenge this concept of an omnipotent single Irf8-dependent cDC1 cluster through analysis of pulmonary cDCs at single cell resolution. We report existence of a pulmonary cDC1 cluster lacking Xcr1 with an immunogenic signature that clearly differs from the Xcr1 positive cDC1 cluster. The Irf8+Batf3+Xcr1- cluster expresses high levels of pro-inflammatory genes associated with antigen presentation, migration and co-stimulation such as Ccr7, Cd74, MHC-II, Ccl5, Il12b and Relb while, the Xcr1+ cDC1 cluster expresses genes corresponding to immune tolerance mechanisms like Clec9a, Pbx1, Cadm1, Btla and Clec12a. In concordance with their pro-inflammatory gene expression profile, the ratio of Xcr1- cDC1s but not Xcr1+cDC1 is increased in the lungs of allergen-treated mice compared to the control group, in which both cDC1 clusters are present in comparable ratios. The existence of two distinct Xcr1+ and Xcr1- cDC1 clusters is furthermore supported by velocity analysis showing markedly different temporal patterns of Xcr1- and Xcr1+cDC1s. In summary, we present evidence for the existence of two different cDC1 clusters with distinct immunogenic profiles in vivo. Our findings have important implications for DC-targeting immunomodulatory therapies.
Collapse
Affiliation(s)
- Adan Chari Jirmo
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Ruth Grychtol
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Svenja Gaedcke
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Bin Liu
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Stephanie DeStefano
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Christine Happle
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Olga Halle
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Joao T. Monteiro
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Excellence Cluster Resolving Infection Susceptibility RESIST (EXC 2155), Deutsche Forschungsgemeinschaft, Hannover Medical School, Hannover, Germany
| | - Anika Habener
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Oliver D. Breiholz
- Research Core Unit Genomics (RCUG), Hannover Medical School, Hannover, Germany
| | - David DeLuca
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Gesine Hansen
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
- Excellence Cluster Resolving Infection Susceptibility RESIST (EXC 2155), Deutsche Forschungsgemeinschaft, Hannover Medical School, Hannover, Germany
| |
Collapse
|
4
|
Uno A, Arima K, Shimazaki M, Ushida M, Amano K, Namikawa R, Sakurai K. A novel β-glucan-oligonucleotide complex selectively delivers siRNA to APCs via Dectin-1. J Control Release 2021; 338:792-803. [PMID: 34530053 DOI: 10.1016/j.jconrel.2021.09.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 10/20/2022]
Abstract
Delivering therapeutic nucleic acids to targeted cells and organs has been a challenge for decades. A novel technology to deliver oligonucleotide therapeutics to immune cells is here described. In this approach, a macromolecular complex of oligonucleotides and the β-1,3-glucan schizophyllan (SPG) is selectively delivered to cells expressing a lectin receptor, Dectin-1, via SPG-Dectin-1 interaction. Detailed investigation of Dectin-1-expressing cells revealed that Dectin-1 is expressed in all subsets of monocytes as well as dendritic cell (DC) populations, including conventional DCs (cDCs) and plasmacytoid DCs (pDCs), in humans. The expression patterns in mice and humans are comparable, except for the expression in pDCs. The results indicate that Dectin-1 is expressed on cells capable of professional antigen presentation, except for B cells. We chose CD40 as a target gene for small interfering RNA (siRNA) as CD40 expression in antigen-presenting cells (APCs), particularly in DCs, plays critical roles in regulating immune responses. Dose-dependent cellular uptake of siCD40-SPG complexes was confirmed in cells expressing Dectin-1. Gene silencing activity was confirmed in vitro by the reduction of CD40 mRNA and by the site-specific cleavage of CD40 mRNA as determined by the 5' RNA ligase-mediated rapid amplification of cDNA ends (5'RLM-RACE) technique. In vivo activity of siCD40-SPG complexes was demonstrated as the reduced CD40 protein expression in monocytes and DCs in mice. Furthermore, the in vivo activity of siCD40-SPG targeting human CD40 was confirmed in cynomolgus monkeys by the 5'RLM-RACE technique. In conclusion, we have demonstrated the receptor-ligand binding-mediated delivery of siRNA targeting immune-regulating monocytes and DCs via the interaction of SPG and its receptor, Dectin-1. As monocytes and DCs play central roles in inducing and controlling immune responses, Dectin-1-targeted delivery of nucleic acids should provide a useful tool for developing drugs to treat a wide range of diseases, including autoimmune diseases, allergy, and cancer, as well as transplantation.
Collapse
Affiliation(s)
- Atsushi Uno
- NapaJen Pharma Co., Ltd., URAC 1204, 2-24-16 Nakacho, Koganei, Tokyo, 184-0012, Japan; Department of Applied Chemistry and BioEngineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan.
| | - Kenji Arima
- NapaJen Pharma Co., Ltd., URAC 1204, 2-24-16 Nakacho, Koganei, Tokyo, 184-0012, Japan
| | - Masako Shimazaki
- NapaJen Pharma Co., Ltd., URAC 1204, 2-24-16 Nakacho, Koganei, Tokyo, 184-0012, Japan
| | - Maki Ushida
- NapaJen Pharma Co., Ltd., URAC 1204, 2-24-16 Nakacho, Koganei, Tokyo, 184-0012, Japan
| | - Kanako Amano
- NapaJen Pharma Co., Ltd., URAC 1204, 2-24-16 Nakacho, Koganei, Tokyo, 184-0012, Japan
| | - Reiko Namikawa
- NapaJen Pharma Co., Ltd., URAC 1204, 2-24-16 Nakacho, Koganei, Tokyo, 184-0012, Japan
| | - Kazuo Sakurai
- NapaJen Pharma Co., Ltd., URAC 1204, 2-24-16 Nakacho, Koganei, Tokyo, 184-0012, Japan
| |
Collapse
|
5
|
Ex vivo dendritic cell-based (DC) vaccine pulsed with a low dose of liposomal antigen and CpG-ODN improved PD-1 blockade immunotherapy. Sci Rep 2021; 11:14661. [PMID: 34282215 PMCID: PMC8290007 DOI: 10.1038/s41598-021-94250-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 07/07/2021] [Indexed: 11/08/2022] Open
Abstract
Lack of pre-existing tumor infiltrated T cells resulting in resistance to programmed cell death protein 1 (PD-1) blockade therapies can be solved by combining with anti-cancer vaccines and CpG-ODN in increasing T cell expansion and infiltration. Therefore, we prepared an ex vivo dendritic cell-based (DC) vaccine pulsed with a low dose of either liposomal or non-liposomal gp100 antigen (2.8 µg) plus CpG-ODN (800 ng) formulations and evaluated its anti-tumor activity in combination with anti-PD-1 therapy. Our results showed a combination of liposomal peptide plus CpG-ODN pulsed DC with anti-PD-1 antibody was more efficacious, as evidenced by a significant increase in Teff/Treg TILs with a marked fourfold elevation of IFN-γ expression level in the tumor site of treated mice which reversed resistance to PD-1 blockade in a CD8 T cell-dependent manner. Furthermore, this combination also led to a remarkable tumor remission and prolonged survival rate in melanoma-bearing mice compared to non-liposomal peptide plus CpG-ODN or single-treated liposomal peptide formulations. Our results provide essential insights to devise combining regimens to improve the efficacy of immune checkpoint blockers even by a low dose of peptide and CpG-ODN.
Collapse
|
6
|
Yu W, Zhou X, Lyu SC, Davis MM, Nadeau KC. Regulation of peanut-specific CD8 + T cells from nonallergic individuals. J Allergy Clin Immunol 2020; 147:385-387.e1. [PMID: 32835695 DOI: 10.1016/j.jaci.2020.07.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 07/13/2020] [Accepted: 07/21/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Wong Yu
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University School of Medicine, Stanford University School of Medicine, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Xiaoying Zhou
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University School of Medicine, Stanford University School of Medicine, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Shu Chen Lyu
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University School of Medicine, Stanford University School of Medicine, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Mark M Davis
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, Calif; Institute of Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, Calif; Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, Calif
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University School of Medicine, Stanford University School of Medicine, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, Calif.
| |
Collapse
|
7
|
Chen G, Bai Y, Li Z, Wang F, Fan X, Zhou X. Bacterial extracellular vesicle-coated multi-antigenic nanovaccines protect against drug-resistant Staphylococcus aureus infection by modulating antigen processing and presentation pathways. Am J Cancer Res 2020; 10:7131-7149. [PMID: 32641983 PMCID: PMC7330855 DOI: 10.7150/thno.44564] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/20/2020] [Indexed: 01/31/2023] Open
Abstract
Background: Vaccination provides an alternative to antibiotics in addressing drug-resistant Staphylococcus aureus (S. aureus) infection. However, vaccine potency is often limited by a lack of antigenic breadth and a demand on the generation of antibody responses alone. Methods: In this study, bacterial extracellular vesicles (EVs) coating indocyanine green (ICG)-loaded magnetic mesoporous silica nanoparticles (MSN) were constructed as multi-antigenic vaccines (EV/ICG/MSN) with the ability to modulate antigen presentation pathways in dendritic cells (DCs) to induce cellular immune responses. Results: Exposing the EV/ICG/MSNs to a laser could promote DC maturation and enhance the proteasome-dependent antigen presentation pathway by facilitating endolysosomal escape, improving proteasome activity, and elevating MHC-I expression. Immunization by EV/ICG/MSNs with laser irradiation in vivo triggered improved CD8+ T cell responses while maintaining CD4+ T cell responses and humoral immunity. In addition, in vivo tracking data revealed that the vaccine could be efficiently transported from the injection site into lymph nodes. Skin infection experiments showed that the vaccine not only prevented and treated superficial infection but also decreased bacterial invasiveness, thus strongly suggesting that EV/ICG/MSNs were effective in preventing complications resulting from the introduction of S. aureus infections. Conclusion: This multi-antigenic nanovaccine-based modulation of antigen presentation pathways provides an effective strategy against drug-resistant S. aureus infection.
Collapse
|
8
|
Lei Y, Shao J, Ma F, Lei C, Chang H, Zhang Y. Enhanced efficacy of a multi-epitope vaccine for type A and O foot‑and-mouth disease virus by fusing multiple epitopes with Mycobacterium tuberculosis heparin-binding hemagglutinin (HBHA), a novel TLR4 agonist. Mol Immunol 2020; 121:118-126. [PMID: 32199211 DOI: 10.1016/j.molimm.2020.02.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/02/2020] [Accepted: 02/25/2020] [Indexed: 02/08/2023]
Abstract
Foot-and-mouth disease (FMD) is an acute, severe, and highly contagious disease that affects cloven-hoofed animals and can lead to serious economic losses and social effects. Therefore, a safe and effective subunit vaccine is required to prevent and control FMD. Dendritic cells (DCs) are a type of professional antigen presenting cell (APC). Immature DCs are typically stimulated by various adjuvants via immune receptors (e.g., toll-like receptor 4 [TLR4]), which activate DCs to induce their maturation. TLR4 has been well-established to induce both innate and adaptive immune responses to various external microbial or internal damage-related molecular patterns. In this study, the multi-epitope immunogen, HAO, of foot-and-mouth disease virus (FMDV) serotypes A and O was fused with the recombinant protein, heparin-binding hemagglutinin (HBHA), a novel TLR4 agonist, to obtain a new recombinant fusion protein, termed HAO-HBHA. HAO-HBHA was found to be highly efficient at activating murine DCs by the TLR4 pathway, both in vitro and in vivo. HAO-HBHA elicited strong specific humoral immune responses detected with an ELISA and virus neutralizing antibody test (VNT). HAO-HBHA also elevated the cellular immune responses, as indicated by intracellular cytokine (e.g., IFN-γ, TNF-α, IL-4, IL-6, IL-10, and IL-12p70) expression in Th1 and Th2 cells. As a TLR4 agonist, HBHA has significant advantages for enhancing the immune efficacy of a FMDV serotype A and O bivalent multi-epitope vaccine. These findings provide a novel strategy for the development of a safe and effective multi-epitope vaccine candidate against FMDV and further extends the application of TLR agonist-based vaccine platforms.
Collapse
Affiliation(s)
- Yao Lei
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu Province, 225009, China
| | - Junjun Shao
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu Province, 225009, China
| | - Feifei Ma
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China
| | - Chenglin Lei
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China
| | - Huiyun Chang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu Province, 225009, China.
| | - Yongguang Zhang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu Province, 225009, China.
| |
Collapse
|
9
|
Calmeiro J, Carrascal MA, Tavares AR, Ferreira DA, Gomes C, Falcão A, Cruz MT, Neves BM. Dendritic Cell Vaccines for Cancer Immunotherapy: The Role of Human Conventional Type 1 Dendritic Cells. Pharmaceutics 2020; 12:pharmaceutics12020158. [PMID: 32075343 PMCID: PMC7076373 DOI: 10.3390/pharmaceutics12020158] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/06/2020] [Accepted: 02/14/2020] [Indexed: 12/26/2022] Open
Abstract
Throughout the last decades, dendritic cell (DC)-based anti-tumor vaccines have proven to be a safe therapeutic approach, although with inconsistent clinical results. The functional limitations of ex vivo monocyte-derived dendritic cells (MoDCs) commonly used in these therapies are one of the pointed explanations for their lack of robustness. Therefore, a great effort has been made to identify DC subsets with superior features for the establishment of effective anti-tumor responses and to apply them in therapeutic approaches. Among characterized human DC subpopulations, conventional type 1 DCs (cDC1) have emerged as a highly desirable tool for empowering anti-tumor immunity. This DC subset excels in its capacity to prime antigen-specific cytotoxic T cells and to activate natural killer (NK) and natural killer T (NKT) cells, which are critical factors for an effective anti-tumor immune response. Here, we sought to revise the immunobiology of cDC1 from their ontogeny to their development, regulation and heterogeneity. We also address the role of this functionally thrilling DC subset in anti-tumor immune responses and the most recent efforts to apply it in cancer immunotherapy.
Collapse
Affiliation(s)
- João Calmeiro
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (J.C.); (A.R.T.); (A.F.); (M.T.C.)
- Center for Neuroscience and Cell Biology-CNC, University of Coimbra, 3004-504 Coimbra, Portugal;
| | - Mylène A. Carrascal
- Center for Neuroscience and Cell Biology-CNC, University of Coimbra, 3004-504 Coimbra, Portugal;
- Tecnimede Group, 2710-089 Sintra, Portugal
| | - Adriana Ramos Tavares
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (J.C.); (A.R.T.); (A.F.); (M.T.C.)
- Center for Neuroscience and Cell Biology-CNC, University of Coimbra, 3004-504 Coimbra, Portugal;
| | - Daniel Alexandre Ferreira
- Coimbra Institute for Clinical and Biomedical Research-iCBR, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (D.A.F.); (C.G.)
| | - Célia Gomes
- Coimbra Institute for Clinical and Biomedical Research-iCBR, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (D.A.F.); (C.G.)
- Center for Innovation in Biomedicine and Biotechnology-CIBB, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Amílcar Falcão
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (J.C.); (A.R.T.); (A.F.); (M.T.C.)
- Coimbra Institute for Biomedical Imaging and Translational Research-CIBIT, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Maria Teresa Cruz
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (J.C.); (A.R.T.); (A.F.); (M.T.C.)
- Center for Neuroscience and Cell Biology-CNC, University of Coimbra, 3004-504 Coimbra, Portugal;
| | - Bruno Miguel Neves
- Department of Medical Sciences and Institute of Biomedicine-iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: ; Tel.: +351-964182278
| |
Collapse
|
10
|
EGFR E746-A750 deletion in lung cancer represses antitumor immunity through the exosome-mediated inhibition of dendritic cells. Oncogene 2020; 39:2643-2657. [PMID: 32001818 DOI: 10.1038/s41388-020-1182-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 01/13/2020] [Accepted: 01/22/2020] [Indexed: 11/08/2022]
Abstract
EGFR-mutant lung cancer (LC) patients display a poor response to PD-1/PD-L1 blockade. In the absence of independent genetic validation, whether EGFR mutation distorts host antitumor immunity is unknown. Here, we showed that in the clinic, LC with the E746-A750 deletion mutation (EGFR-19del) displayed a temporal association with the loss of intratumoral CD8+ T cells. In a xenograft model, EGFR-19del-expressing Lewis lung cancer (LLC) tumors had a low T cell density at the early stage of tumor development, along with dendritic cells (DCs) exhibiting variant phenotypes in the tumors and draining lymph nodes (LNs). Importantly, EGFR-19del DCs were observed in the LNs of tumor-bearing mice and LC patients. The proliferative activity of T cells within the LN was significantly dampened. In vitro experiments indicated that the function of DCs was repressed by EGFR-19del LLC cells through exosome uptake in which exosomes derived from the EGFR-19del LLC cells could efficiently transfer active EGFR-19del to the surface of the DCs. Injection of EGFR-19del tumor-derived exosomes promoted LLC tumor progression and induced immunosuppression. The combination of gefitinib and GM-CSF treatment recovered tumor T cell infiltration in EGFR-19del tumors by rescuing the function of DCs and increasing the efficacy of anti-PD-L1 treatment. Together, these results indicated that LC with the EGFR E746-A750 deletion mutation induced anergic DCs to repress antitumor immunity through exosomes.
Collapse
|
11
|
Shortman K. Dendritic cell development: A personal historical perspective. Mol Immunol 2020; 119:64-68. [PMID: 31986310 DOI: 10.1016/j.molimm.2019.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/02/2019] [Accepted: 12/20/2019] [Indexed: 01/01/2023]
Abstract
Dendritic cells(DCs) were once considered as a single cell type closely related developmentally to macrophages. Now we recognise several subtypes of DCs and have outlined several different pathways that potentially lead to their development. This article outlines some of the research findings that led to these changes in perspective, from the point of view of one of the participants.
Collapse
Affiliation(s)
- Ken Shortman
- The Walter and Eliza Hall Institute, Melbourne, Australia.
| |
Collapse
|
12
|
Balan S, Arnold-Schrauf C, Abbas A, Couespel N, Savoret J, Imperatore F, Villani AC, Vu Manh TP, Bhardwaj N, Dalod M. Large-Scale Human Dendritic Cell Differentiation Revealing Notch-Dependent Lineage Bifurcation and Heterogeneity. Cell Rep 2019; 24:1902-1915.e6. [PMID: 30110645 PMCID: PMC6113934 DOI: 10.1016/j.celrep.2018.07.033] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 05/30/2018] [Accepted: 07/10/2018] [Indexed: 12/21/2022] Open
Abstract
The ability to generate large numbers of distinct types of human dendritic cells (DCs) in vitro is critical for accelerating our understanding of DC biology and harnessing them clinically. We developed a DC differentiation method from human CD34+ precursors leading to high yields of plasmacytoid DCs (pDCs) and both types of conventional DCs (cDC1s and cDC2s). The identity of the cells generated in vitro and their strong homology to their blood counterparts were demonstrated by phenotypic, functional, and single-cell RNA-sequencing analyses. This culture system revealed a critical role of Notch signaling and GM-CSF for promoting cDC1 generation. Moreover, we discovered a pre-terminal differentiation state for each DC type, characterized by high expression of cell-cycle genes and lack of XCR1 in the case of cDC1. Our culture system will greatly facilitate the simultaneous and comprehensive study of primary, otherwise rare human DC types, including their mutual interactions. A CD34+ cell culture protocol yields large numbers of human pDCs and cDC1/2s Notch signaling is critical for cDC1 generation and GM-CSF has a synergistic effect scRNAseq confirms homology of in-vitro-derived DC types to their blood counterparts CLEC9A-positive XCR1-negative cells were identified as immediate precursors of cDC1s
Collapse
Affiliation(s)
- Sreekumar Balan
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France; The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Parker Institute of Cancer Immunotherapy, USA
| | - Catharina Arnold-Schrauf
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France
| | - Abdenour Abbas
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France
| | - Norbert Couespel
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France
| | - Juliette Savoret
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France
| | - Francesco Imperatore
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France
| | - Alexandra-Chloé Villani
- Broad Institute of Harvard University and MIT, Cambridge, MA 02142, USA; Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Boston, MA 02129, USA
| | - Thien-Phong Vu Manh
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France
| | - Nina Bhardwaj
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Parker Institute of Cancer Immunotherapy, USA.
| | - Marc Dalod
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille 13288, France.
| |
Collapse
|
13
|
Seya T, Takeda Y, Matsumoto M. A Toll-like receptor 3 (TLR3) agonist ARNAX for therapeutic immunotherapy. Adv Drug Deliv Rev 2019; 147:37-43. [PMID: 31302192 DOI: 10.1016/j.addr.2019.07.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 05/19/2019] [Accepted: 07/08/2019] [Indexed: 12/11/2022]
Abstract
Vaccine immunotherapy consisting of tumor antigens combined with an immune-enhancing adjuvant fosters cytotoxic T cell (CTL) proliferation. Clinically, polyI:C has been used as an adjuvant to enhance cancer vaccine protocols. However, according to its long history, polyI:C promotes inflammation that causes cytokine toxicity. Although checkpoint inhibitor immunotherapy has improved the prognoses of patients with progressive cancer, over 75% of patients continue to experience resistance to antibody (Ab) against anti-programmed cell death-protein 1 (PD-1) or its ligand, PD-L1 therapy. In most cases, patients suffer from adverse events resulting from inflammation during anti-PD-1/L1 Ab therapy, which is a serious obstacle to patients' quality of life. We have studied the functional properties of double-stranded (ds)RNA and polyI:C, and developed a nucleic acid adjuvant that barely induces a significant increase in the level of serum inflammatory cytokines in mouse models. This adjuvant, termed ARNAX, consists of DNA-capped dsRNA that specifies the endosomal target for Toll-like receptor 3 (TLR3) in dendritic cells (DCs). We expect that this adjuvant is safe for administration in elderly patients with cancer receiving immunotherapy. Here, we summarize the properties of ARNAX for immunotherapy in mice. We suggest that DC-priming is essential to induce anti-tumor immunity; neither exogenous inflammation nor the administration of tumor antigens is always a prerequisite for DC-mediated CTL proliferation. If our mouse data can be extrapolated to humans, ARNAX and the liberated endogenous tumor antigens may facilitate effect of current therapies on patients with therapy-resistant tumors.
Collapse
Affiliation(s)
- Tsukasa Seya
- Department of Vaccine Immunology, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan; Nebuta Research Institute for Life Sciences, and Center for Brain and Health Sciences, Aomori University, Kohbata 2-3-1, Aomori, 030-0943, Japan.
| | - Yohei Takeda
- Department of Vaccine Immunology, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan
| | - Misako Matsumoto
- Department of Vaccine Immunology, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan; Nebuta Research Institute for Life Sciences, and Center for Brain and Health Sciences, Aomori University, Kohbata 2-3-1, Aomori, 030-0943, Japan.
| |
Collapse
|
14
|
He Z, Zhu X, Shi Z, Wu T, Wu L. Metabolic Regulation of Dendritic Cell Differentiation. Front Immunol 2019; 10:410. [PMID: 30930893 PMCID: PMC6424910 DOI: 10.3389/fimmu.2019.00410] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 02/15/2019] [Indexed: 12/11/2022] Open
Abstract
Dendritic cells (DCs) are important antigen-presenting cells (APCs) that play essential roles in bridging innate and adaptive immune responses. Differentiation stages of DC subsets from bone marrow progenitor cells have been well-defined during the past decades. Features that distinguish DC progenitor cells from each differentiation stages, related signaling pathways and transcription factors that are crucial for DC lineage commitment have been well-elucidated in numerous studies. Recently, growing evidence are showing that cellular metabolism, as one of the most fundamental process of cells, has essential role in the modulation of immune system. There have been multiple reports and reviews that focus on the metabolic modulations on DC functions, however little attention had been paid to the metabolic regulation of DC development and differentiation. In recent years, increasing evidence suggests that metabolic regulations also exert significant impact on DC differentiation, as well as on the homeostasis of tissue resident DCs. The focus of this review is to summarize the findings from recent studies on the metabolic regulation of DC differentiation and to discuss the impacts of the three major aspects of metabolism on the processes of DC development and differentiation, namely the changes in metabolic pathways, the molecular signaling pathways that modulate cell metabolism, and the effects of metabolites and nutrients. The aim of this review is to draw attentions to this important and exciting research field where the effects of metabolic process and their regulation in DC differentiation need to be further explored.
Collapse
Affiliation(s)
- Zhimin He
- School of Medicine, Institute for Immunology, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Science, Beijing, China
| | - Xinyi Zhu
- School of Medicine, Institute for Immunology, Tsinghua University, Beijing, China
| | - Zhen Shi
- School of Medicine, Institute for Immunology, Tsinghua University, Beijing, China
| | - Tao Wu
- School of Medicine, Institute for Immunology, Tsinghua University, Beijing, China
| | - Li Wu
- School of Medicine, Institute for Immunology, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Science, Beijing, China
| |
Collapse
|
15
|
Yan S, Gu W, Zhang B, Rolfe BE, Xu ZP. High adjuvant activity of layered double hydroxide nanoparticles and nanosheets in anti-tumour vaccine formulations. Dalton Trans 2018; 47:2956-2964. [PMID: 29168855 DOI: 10.1039/c7dt03725b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Effective adjuvants in anti-tumour vaccine formulations are very important in the development of new-generation vaccines. In this study, two layered double hydroxide (LDH) nanomaterial forms, i.e. nanoparticles (NPs) and nanosheets (NSs), were synthesised and examined as adjuvants to provoke the immune responses for anti-tumour purpose. Immunogen ovalbumin (OVA) delivered by both nanomaterials induced much stronger humoral and cell-medicated immune responses, together with an immune stimulant (TLR9 ligand CpG), as evidenced by higher levels of IgG1, IgG2a and interferon-γ. By comparison, LDH NSs showed higher activity to promote specific antibody responses than LDH NPs but with a similar cell-mediated immune response. The mice immunised with OVA-CpG vaccines formulated with both nanomaterials showed stronger inhibition of the inoculated tumour growth and had a longer survival. Altogether, these data indicate that LDH NPs and NSs can be used as potential nanoadjuvants for efficient protein-based anti-tumour vaccines.
Collapse
Affiliation(s)
- Shiyu Yan
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia.
| | | | | | | | | |
Collapse
|
16
|
Mechanistic insights into the efficacy of cell penetrating peptide-based cancer vaccines. Cell Mol Life Sci 2018; 75:2887-2896. [PMID: 29508006 PMCID: PMC6061156 DOI: 10.1007/s00018-018-2785-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 11/15/2017] [Accepted: 02/22/2018] [Indexed: 02/07/2023]
Abstract
Immunotherapies are increasingly used to treat cancer, with some outstanding results. Immunotherapy modalities include therapeutic vaccination to eliminate cancer cells through the activation of patient’s immune system against tumor-derived antigens. Nevertheless, the full potential of therapeutic vaccination has yet to be demonstrated clinically because many early generation vaccines elicited low-level immune responses targeting only few tumor antigens. Cell penetrating peptides (CPPs) are highly promising tools to advance the field towards clinical success. CPPs efficiently penetrate cell membranes, even when linked to antigenic cargos, which can induce both CD8 and CD4 T-cell responses. Pre-clinical studies demonstrated that targeting multiple tumor antigens, even those considered to be poorly immunogenic, led to tumor regression. Therefore, CPP-based cancer vaccines represent a flexible and powerful means to extend therapeutic vaccination to many cancer indications. Here, we review recent findings in CPP development and discuss their use in next generation immunotherapies.
Collapse
|
17
|
Uto T, Takagi H, Fukaya T, Nasu J, Fukui T, Miyanaga N, Arimura K, Nakamura T, Choijookhuu N, Hishikawa Y, Sato K. Critical role of plasmacytoid dendritic cells in induction of oral tolerance. J Allergy Clin Immunol 2018; 141:2156-2167.e9. [PMID: 29477579 DOI: 10.1016/j.jaci.2017.11.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/06/2017] [Accepted: 11/08/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Exposure to dietary constituents through the mucosal surface of the gastrointestinal tract generates oral tolerance that prevents deleterious T cell-mediated immunity. Although oral tolerance is an active process that involves emergence of CD4+ forkhead box p3 (Foxp3)+ regulatory T (Treg) cells in gut-associated lymphoid tissues (GALTs) for suppression of effector T (Teff) cells, how antigen-presenting cells initiate this process remains unclear. OBJECTIVE We sought to determine the role of plasmacytoid dendritic cells (pDCs), which are known as unconventional antigen-presenting cells, in establishment of oral tolerance. METHODS GALT-associated pDCs in wild-type mice were examined for their ability to induce differentiation of CD4+ Teff cells and CD4+Foxp3+ Treg cells in vitro. Wild-type and pDC-ablated mice were fed oral antigen to compare their intestinal generation of CD4+Foxp3+ Treg cells and induction of oral tolerance to protect against Teff cell-mediated allergic inflammation. RESULTS GALT-associated pDCs preferentially generate CD4+Foxp3+ Treg cells rather than CD4+ Teff cells, and such generation requires an autocrine loop of TGF-β for its robust production. A deficiency of pDCs abrogates antigen-specific de novo generation of CD4+Foxp3+ Treg cells occurring in GALT after antigenic feeding. Furthermore, the absence of pDCs impairs development of oral tolerance, which ameliorates the progression of delayed-type hypersensitivity and systemic anaphylaxis, as well as allergic asthma, accompanied by an enhanced antigen-specific CD4+ Teff cell response and antibody production. CONCLUSION pDCs are required for establishing oral tolerance to prevent undesirable allergic responses, and they might serve a key role in maintaining gastrointestinal immune homeostasis.
Collapse
Affiliation(s)
- Tomofumi Uto
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - Hideaki Takagi
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - Tomohiro Fukaya
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - Junta Nasu
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Takehito Fukui
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Noriaki Miyanaga
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Keiichi Arimura
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Takeshi Nakamura
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Narantsog Choijookhuu
- Division of Histochemistry and Cell Biology, Department of Anatomy, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Yoshitaka Hishikawa
- Division of Histochemistry and Cell Biology, Department of Anatomy, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Katsuaki Sato
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.
| |
Collapse
|
18
|
Gholizadeh Z, Tavakkol‐Afshari J, Nikpoor AR, Jalali SA, Jaafari MR. Enhanced immune response induced by P5 HER2/neu-derived peptide-pulsed dendritic cells as a preventive cancer vaccine. J Cell Mol Med 2018; 22:558-567. [PMID: 28944998 PMCID: PMC5742681 DOI: 10.1111/jcmm.13343] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 06/28/2017] [Indexed: 12/22/2022] Open
Abstract
Dendritic cells are special and powerful antigen-presenting cells that can induce primary immune responses against tumour-associated antigens. They can present antigens via both MHC-I and MHC-II, so they have the ability to stimulate both cytotoxic T lymphocytes and T helper cells. Furthermore, CD8+ cytotoxic T lymphocytes require activation by CD4+ T cells. This requires a CD4+ T cell activator molecule, of which PADRE is one of the best. We chose an approach to use both of these important arms of the immune system. We prepared dendritic cells from mouse bone marrow, loaded them with our target peptides (P5 peptide alone or P5 + PADRE), and then injected these pulsed dendritic cells alone or in combination with CpG-ODN (as adjuvant) into BALB/C mice. After the last boosting dose, mice were inoculated with TUBO cells, which overexpress HER2/neu. Two weeks after the tumour cell injection, immunological tests were performed on splenocyte suspensions, and the remaining mice were evaluated for tumour growth and survival. Our data indicate the formulation that contains PADRE plus P5 loaded onto DC in combination with CpG-ODN was the most effective formulation at inducing immune responses. Interferon production in CD4+ and CD8+ gated cells, cytotoxicity rates of target cells and mice survival were all significantly greater in this group than in controls, and all the mice in this group were tumour-free throughout the experiment. Based on our results and the role of HER2/neu as a candidate in human immunotherapy, this approach may be an effective cancer treatment.
Collapse
Affiliation(s)
- Zahra Gholizadeh
- Immunogenetic and Cell Culture DepartmentImmunology Research CenterSchool of MedicineMashhad University of Medical SciencesMashhadIran
| | - Jalil Tavakkol‐Afshari
- Immunogenetic and Cell Culture DepartmentImmunology Research CenterSchool of MedicineMashhad University of Medical SciencesMashhadIran
| | - Amin Reza Nikpoor
- Immunogenetic and Cell Culture DepartmentImmunology Research CenterSchool of MedicineMashhad University of Medical SciencesMashhadIran
| | - Seyed Amir Jalali
- Department of ImmunologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
| | - Mahmoud Reza Jaafari
- Biotechnology Research CenterNanotechnology Research CenterMashhad University of Medical SciencesMashhadIran
- School of PharmacyMashhad University of Medical SciencesMashhadIran
| |
Collapse
|
19
|
Wu CC, Liu SJ, Chen HW, Shen KY, Leng CH. A Toll-like receptor 2 agonist-fused antigen enhanced antitumor immunity by increasing antigen presentation and the CD8 memory T cells population. Oncotarget 2017; 7:30804-19. [PMID: 27127171 PMCID: PMC5058719 DOI: 10.18632/oncotarget.9001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 03/31/2016] [Indexed: 11/25/2022] Open
Abstract
The induction of long-lived effector CD8+ T cells is key to the development of efficient cancer vaccines. In this study, we demonstrated that a Toll-like receptor 2 (TLR2) agonist-fused antigen increased antigen presentation via TLR2 signaling and induced effector memory-like CD8+ T cells against cancer after immunization. The N-terminus of ovalbumin (OVA) was biologically fused with a bacterial lipid moiety TLR2 agonist to produce a recombinant lipidated ovalbumin (rlipo-OVA). We demonstrated that rlipo-OVA activated bone marrow-derived dendritic cells (BM-DCs) maturation and increased antigen presentation by major histocompatibility complex (MHC) class I via TLR2. After immunization, rlipo-OVA skewed the immune response towards T helper (Th) 1 and induced OVA-specific cytotoxic T lymphocyte (CTL) responses. Moreover, immunization with rlipo-OVA induced higher numbers of effector memory (CD44+CD62L-) CD8+ T cells compared with recombinant ovalbumin (rOVA) alone or rOVA mixed with the TLR2 agonist Pam3CSK4. Accordingly, the CD27+CD43+ effector memory CD8+ T cells expressed high levels of the long-lived CD127 marker. The administration of rlipo-OVA could inhibit tumor growth, but the anti-tumor effects were lost after the depletion of CD8 or CD127 cells in vivo. These findings suggested that the TLR2 agonist-fused antigen induced long-lived memory CD8+ T cells for efficient cancer therapy.
Collapse
Affiliation(s)
- Chiao-Chieh Wu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 114, Taiwan.,National Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Miaoli County 350, Taiwan
| | - Shih-Jen Liu
- National Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Miaoli County 350, Taiwan.,Graduate Institute of Immunology, China Medical University, Taichung 40402, Taiwan
| | - Hsin-Wei Chen
- National Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Miaoli County 350, Taiwan.,Graduate Institute of Immunology, China Medical University, Taichung 40402, Taiwan
| | - Kuan-Yin Shen
- National Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Miaoli County 350, Taiwan
| | - Chih-Hsiang Leng
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 114, Taiwan.,National Institute of Infectious Disease and Vaccinology, National Health Research Institutes, Miaoli County 350, Taiwan.,Graduate Institute of Immunology, China Medical University, Taichung 40402, Taiwan
| |
Collapse
|
20
|
Liu X, Lv J, Fang Y, Zhou P, Lu Y, Pan L, Zhang Z, Ma J, Zhang Y, Wang Y. Expression and Immunogenicity of Two Recombinant Fusion Proteins Comprising Foot-and-Mouth Disease Virus Structural Protein VP1 and DC-SIGN-Binding Glycoproteins. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7658970. [PMID: 29119112 PMCID: PMC5651091 DOI: 10.1155/2017/7658970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 08/22/2017] [Accepted: 08/28/2017] [Indexed: 11/17/2022]
Abstract
Improving vaccine immunogenicity by targeting antigens to dendritic cells has recently emerged as a new design strategy in vaccine development. In this study, the VP1 gene of foot-and-mouth disease virus (FMDV) serotype A was fused with the gene encoding human immunodeficiency virus (HIV) membrane glycoprotein gp120 or C2-V3 domain of hepatitis C virus (HCV) envelope glycoprotein E2, both of which are DC-SIGN-binding glycoproteins. After codon optimization, the VP1 protein and the two recombinant VP1-gp120 and VP1-E2 fusion proteins were expressed in Sf9 insect cells using the insect cell-baculovirus expression system. Western blotting showed that the VP1 protein and two recombinant VP1-gp120 and VP1-E2 fusion proteins were correctly expressed in the Sf9 insect cells and had good reactogenicity. Guinea pigs were then immunized with the purified proteins, and the resulting humoral and cellular immune responses were analyzed. The VP1-gp120 and VP1-E2 fusion proteins induced significantly higher specific anti-FMDV antibody levels than the VP1 protein and stronger cell-mediated immune responses. This study provides a new perspective for the development of novel FMDV subunit vaccines.
Collapse
Affiliation(s)
- Xinsheng Liu
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jianliang Lv
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yuzhen Fang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Peng Zhou
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yanzhen Lu
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Li Pan
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Zhongwang Zhang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Junwu Ma
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Yongguang Zhang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yonglu Wang
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| |
Collapse
|
21
|
Arimura K, Takagi H, Uto T, Fukaya T, Nakamura T, Choijookhuu N, Hishikawa Y, Yamashita Y, Sato K. Crucial role of plasmacytoid dendritic cells in the development of acute colitis through the regulation of intestinal inflammation. Mucosal Immunol 2017; 10:957-970. [PMID: 27848952 DOI: 10.1038/mi.2016.96] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/23/2016] [Indexed: 02/04/2023]
Abstract
Disruption of intestinal homeostasis can lead to inflammatory bowel diseases endowed susceptibility genes and environmental factors affecting intestinal accumulation and activation of colitogenic phagocytes. Plasmacytoid dendritic cells (pDCs) are immune cells that had been proposed to control innate and adaptive immunity through the massive secretion of type I interferon (IFN-I). However, the contribution of pDCs to the progression of intestinal inflammation remains unclear. Here we show a critical role of pDCs in the initiation of acute colonic inflammation using T-cell-independent acute colitis model with a selective ablation of pDCs. Although pDCs accumulated in the inflamed colon upon mucosal injury, deficiency of pDCs attenuated the development of acute colitis independent of IFN-I signaling, accompanied by the diminished colonic production of proinflammatory cytokines. Furthermore, deficiency of pDCs impaired the mobilization of colitogenic phagocytes into the inflamed colon possibly mediated by the abrogated mucosal production of C-C chemokine receptor 2 ligand. Thus, our findings highlight a critical role of pDCs in the induction of the colonic inflammation that regulates the colonic accumulation of inflammatory phagocytes leading to the initiation and exacerbation of acute colitis, and they may serve a key role in controlling gut mucosal immune homeostasis.
Collapse
Affiliation(s)
- K Arimura
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.,Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - H Takagi
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.,Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - T Uto
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.,Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - T Fukaya
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.,Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - T Nakamura
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.,Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - N Choijookhuu
- Division of Histochemistry and Cell Biology, Department of Anatomy, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Y Hishikawa
- Division of Histochemistry and Cell Biology, Department of Anatomy, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Y Yamashita
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - K Sato
- Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.,Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| |
Collapse
|
22
|
Hotblack A, Seshadri S, Zhang L, Hamrang-Yousefi S, Chakraverty R, Escors D, Bennett CL. Dendritic Cells Cross-Present Immunogenic Lentivector-Encoded Antigen from Transduced Cells to Prime Functional T Cell Immunity. Mol Ther 2017; 25:504-511. [PMID: 28153097 PMCID: PMC5368353 DOI: 10.1016/j.ymthe.2016.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/10/2016] [Accepted: 11/11/2016] [Indexed: 12/03/2022] Open
Abstract
Recombinant lentiviral vectors (LVs) are highly effective vaccination vehicles that elicit protective T cell immunity in disease models. Dendritic cells (DCs) acquire antigen at sites of vaccination and migrate to draining lymph nodes, where they prime vaccine-specific T cells. The potency with which LVs activate CD8+ T cell immunity has been attributed to the transduction of DCs at the immunization site and durable presentation of LV-encoded antigens. However, it is not known how LV-encoded antigens continue to be presented to T cells once directly transduced DCs have turned over. Here, we report that LV-encoded antigen is efficiently cross-presented by DCs in vitro. We have further exploited the temporal depletion of DCs in the murine CD11c.DTR (diphtheria toxin receptor) model to demonstrate that repopulating DCs that were absent at the time of immunization cross-present LV-encoded antigen to T cells in vivo. Indirect presentation of antigen from transduced cells by DCs is sufficient to prime functional effector T cells that control tumor growth. These data suggest that DCs cross-present immunogenic antigen from LV-transduced cells, thereby facilitating prolonged activation of T cells in the absence of circulating LV particles. These are findings that may impact on the future design of LV vaccination strategies.
Collapse
Affiliation(s)
- Alastair Hotblack
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK
| | - Sara Seshadri
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - Lei Zhang
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - Sahar Hamrang-Yousefi
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - Ronjon Chakraverty
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - David Escors
- Immunomodulation Group, Navarrabiomed-Fundaçion Miguel Servet, Calle de Irunlarrea 3, 31008 Pamplona, Spain
| | - Clare L Bennett
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK.
| |
Collapse
|
23
|
Brinza L, Djebali S, Tomkowiak M, Mafille J, Loiseau C, Jouve PE, de Bernard S, Buffat L, Lina B, Ottmann M, Rosa-Calatrava M, Schicklin S, Bonnefoy N, Lauvau G, Grau M, Wencker M, Arpin C, Walzer T, Leverrier Y, Marvel J. Immune signatures of protective spleen memory CD8 T cells. Sci Rep 2016; 6:37651. [PMID: 27883012 PMCID: PMC5121635 DOI: 10.1038/srep37651] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 10/28/2016] [Indexed: 01/09/2023] Open
Abstract
Memory CD8 T lymphocyte populations are remarkably heterogeneous and differ in their ability to protect the host. In order to identify the whole range of qualities uniquely associated with protective memory cells we compared the gene expression signatures of two qualities of memory CD8 T cells sharing the same antigenic-specificity: protective (Influenza-induced, Flu-TM) and non-protective (peptide-induced, TIM) spleen memory CD8 T cells. Although Flu-TM and TIM express classical phenotypic memory markers and are polyfunctional, only Flu-TM protects against a lethal viral challenge. Protective memory CD8 T cells express a unique set of genes involved in migration and survival that correlate with their unique capacity to rapidly migrate within the infected lung parenchyma in response to influenza infection. We also enlighten a new set of poised genes expressed by protective cells that is strongly enriched in cytokines and chemokines such as Ccl1, Ccl9 and Gm-csf. CCL1 and GM-CSF genes are also poised in human memory CD8 T cells. These immune signatures are also induced by two other pathogens (vaccinia virus and Listeria monocytogenes). The immune signatures associated with immune protection were identified on circulating cells, i.e. those that are easily accessible for immuno-monitoring and could help predict vaccines efficacy.
Collapse
Affiliation(s)
- Lilia Brinza
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Sophia Djebali
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Martine Tomkowiak
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Julien Mafille
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Céline Loiseau
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | | | | | | | - Bruno Lina
- Laboratoire Virpath EA4610, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Université de Lyon, France.,Laboratoire de Virologie, CNR des virus influenza, Hospices Civils de Lyon, Lyon, France
| | - Michèle Ottmann
- Laboratoire Virpath EA4610, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Université de Lyon, France
| | - Manuel Rosa-Calatrava
- Laboratoire Virpath EA4610, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Université de Lyon, France
| | - Stéphane Schicklin
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Nathalie Bonnefoy
- IRCM, Institut de Recherche en Cancérologie de Montpellier; INSERM, U896; Université Montpellier 1; CRLC Val d'Aurelle Paul Lamarque, Montpellier, France
| | - Grégoire Lauvau
- Albert Einstein College of Medicine, Department of Microbiology and Immunology, Bronx, NY 10461, USA
| | - Morgan Grau
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Mélanie Wencker
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Christophe Arpin
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Thierry Walzer
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Yann Leverrier
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| | - Jacqueline Marvel
- CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, F-69007, LYON, France
| |
Collapse
|
24
|
Herbin O, Bonito AJ, Jeong S, Weinstein EG, Rahman AH, Xiong H, Merad M, Alexandropoulos K. Medullary thymic epithelial cells and CD8α + dendritic cells coordinately regulate central tolerance but CD8α + cells are dispensable for thymic regulatory T cell production. J Autoimmun 2016; 75:141-149. [PMID: 27543048 DOI: 10.1016/j.jaut.2016.08.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 07/29/2016] [Accepted: 08/03/2016] [Indexed: 10/21/2022]
Abstract
In the thymus, antigen presenting cells (APCs) namely, medullary thymic epithelial cells (mTECs) and thymic dendritic cells (tDCs) regulate T cell tolerance through elimination of autoreactive T cells and production of thymic T regulatory (tTreg) cells. How the different APCs in the thymus share the burden of tolerazing the emerging T cell repertoire remains unclear. For example, while mutations that inhibit mTEC development or function associate with peripheral autoimmunity, the role of tDCs in organ-specific autoimmunity and tTreg cell production remains controversial. In this report we used mice depleted of mTECs and/or CD8α+ DCs, to examine the contributions of these cell populations in thymic tolerance. We found that while mice depleted of CD8α+ DCs or mTECs were normal or developed liver inflammation respectively, combined depletion of mTECs and CD8α+ DCs resulted in overt peripheral autoimmunity. The autoimmune manifestations in mice depleted of both mTECs and CD8α+ cDCs associated with increased percentages of CD4+ and CD8+ T cells in the thymus. In contrast, while mTEC depletion resulted in reduced percentages of tTreg cells, no additional effect was observed when CD8α+ DCs were also depleted. These results reveal that: 1) mTECs and CD8α+ DCs cooperatively safeguard against peripheral autoimmunity through thymic T cell deletion; 2) CD8α+ DCs are dispensable for tTreg cell production, whereas mTECs play a non-redundant role in this process; 3) mTECs and CD8α+ DCs make unique contributions to tolerance induction that cannot be compensated for by other thymic APCs such as migratory SIRPα+ or plasmacytoid DCs.
Collapse
Affiliation(s)
- Olivier Herbin
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anthony J Bonito
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Seihwan Jeong
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Erica G Weinstein
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Adeeb H Rahman
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; The Tisch Cancer Institute/Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Huabao Xiong
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Miriam Merad
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; The Tisch Cancer Institute/Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Konstantina Alexandropoulos
- Department of Medicine/Clinical Immunology, The Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| |
Collapse
|
25
|
Plasmacytoid dendritic cells orchestrate TLR7-mediated innate and adaptive immunity for the initiation of autoimmune inflammation. Sci Rep 2016; 6:24477. [PMID: 27075414 PMCID: PMC4830934 DOI: 10.1038/srep24477] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 03/30/2016] [Indexed: 01/08/2023] Open
Abstract
Endosomal toll-like receptor (TLR)-mediated detection of viral nucleic acids (NAs) and production of type I interferon (IFN-I) are key elements of antiviral defense, while inappropriate recognition of self NAs with the induction of IFN-I responses is linked to autoimmunity such as psoriasis and systemic lupus erythematosus. Plasmacytoid dendritic cells (pDCs) are cells specialized in robust IFN-I secretion by the engagement of endosomal TLRs, and predominantly express sialic acid-binding Ig-like lectin (Siglec)-H. However, how pDCs control endosomal TLR-mediated immune responses that cause autoimmunity remains unclear. Here we show a critical role of pDCs in TLR7-mediated autoimmunity using gene-modified mice with impaired expression of Siglec-H and selective ablation of pDCs. pDCs were shown to be indispensable for the induction of systemic inflammation and effector T-cell responses triggered by TLR7 ligand. pDCs aggravated psoriasiform dermatitis mediated through the hyperproliferation of keratinocytes and enhanced dermal infiltration of granulocytes and γδ T cells. Furthermore, pDCs promoted the production of anti-self NA antibodies and glomerulonephritis in lupus-like disease by activating inflammatory monocytes. On the other hand, Siglec-H regulated the TLR7-mediated activation of pDCs. Thus, our findings reveal that pDCs provide an essential link between TLR7-mediated innate and adaptive immunity for the initiation of IFN-I-associated autoimmune inflammation.
Collapse
|
26
|
Clec4A4 is a regulatory receptor for dendritic cells that impairs inflammation and T-cell immunity. Nat Commun 2016; 7:11273. [PMID: 27068492 PMCID: PMC4832068 DOI: 10.1038/ncomms11273] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 03/08/2016] [Indexed: 01/13/2023] Open
Abstract
Dendritic cells (DCs) comprise several subsets that are critically involved in the initiation and regulation of immunity. Clec4A4/DC immunoreceptor 2 (DCIR2) is a C-type lectin receptor (CLR) exclusively expressed on CD8α− conventional DCs (cDCs). However, how Clec4A4 controls immune responses through regulation of the function of CD8α− cDCs remains unclear. Here we show that Clec4A4 is a regulatory receptor for the activation of CD8α− cDCs that impairs inflammation and T-cell immunity. Clec4a4−/−CD8α− cDCs show enhanced cytokine production and T-cell priming following Toll-like receptor (TLR)-mediated activation. Furthermore, Clec4a4−/− mice exhibit TLR-mediated hyperinflammation. On antigenic immunization, Clec4a4−/− mice show not only augmented T-cell responses but also progressive autoimmune pathogenesis. Conversely, Clec4a4−/− mice exhibit resistance to microbial infection, accompanied by enhanced T-cell responses against microbes. Thus, our findings highlight roles of Clec4A4 in regulation of the function of CD8α− cDCs for control of the magnitude and quality of immune response. Clec4A4 is a C-type lectin receptor highly expressed by CD8α− dendritic cells. Here the authors show that its loss of function results in enhanced T cell responses and exacerbated autoimmunity, implicating Clec4A4 in limiting activation of the CD8α− dendritic cells.
Collapse
|
27
|
Plasmacytoid Dendritic Cells Require Direct Infection To Sustain the Pulmonary Influenza A Virus-Specific CD8 T Cell Response. J Virol 2015; 90:2830-7. [PMID: 26719269 DOI: 10.1128/jvi.02546-15] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 12/20/2015] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Following influenza A virus (IAV) infection, development of a robust IAV-specific CD8 T cell response is required for clearance of primary infection and enhances memory protection. Following IAV infection, plasmacytoid dendritic cells (pDC) or CD8α(+) DC regulate pulmonary effector CD8 T cell responses within the lung. Without this DC-T cell interaction, insufficient effector CD8 T cells are maintained in the lungs, leading to enhanced morbidity and mortality. Previous studies have demonstrated that pDC are capable of classical presentation or cross-presentation of IAV antigens and could potentially regulate IAV-specific CD8 T cell responses through either mechanism. Our results demonstrate that pDC from the lungs of donor mice infected with an IAV that is not able to replicate in hematopoietic cells (142t-IAV), unlike donor pDC isolated from the lungs of control infected mice, are not able to rescue the host IAV-specific CD8 T cell response from apoptosis. This indicates that pDC must utilize the direct presentation pathway for this rescue. This inability of pDC from 142t-IAV donors to rescue the IAV-specific CD8 T cell response is not due to differences in the overall ability of 142t-IAV to replicate within the lungs or generate defective viral genomes or to differences in levels of costimulatory molecules required for this interaction. We further demonstrate that bypassing the antigen presentation pathway by coating the 142t-IAV pDC with IAV peptide epitopes restores their ability to rescue the IAV-specific CD8 T cell response. IMPORTANCE IAV continues to be a global health burden, infecting 5 to 20% of the global population annually. Continued investigation into the mechanisms that mediate protective immune responses against IAV is important to improving current vaccination and antiviral strategies antagonistic toward IAV. Our findings presented herein demonstrate a key requirement for pDC promotion of effector CD8 T cell survival: that rather than utilizing cross-presentation, pDC must be infected and utilize the endogenous pathway for presentation of antigens to CD8 T cells during in vivo IAV infections. This suggests that targeting presentation via the endogenous pathway in pDC could be important for the development of unique antiviral cellular therapies.
Collapse
|
28
|
Gong H, Xiang J, Xu L, Song X, Dong Z, Peng R, Liu Z. Stimulation of immune systems by conjugated polymers and their potential as an alternative vaccine adjuvant. NANOSCALE 2015; 7:19282-19292. [PMID: 26530014 DOI: 10.1039/c5nr06081h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
UNLABELLED Recently, conjugated polymers have been widely explored in the field of nanomedicine. Careful evaluations of their biological effects are thus urgently needed. Hereby, we systematically evaluated the biological effects of different types of conjugated polymers on macrophages and dendritic cells (DCs), which play critical roles in the innate and adaptive immune systems, respectively. While naked poly-(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) ( PEDOT PSS) exhibits a high level of cytotoxicity, polyethylene glycol (PEG) modified PEDOT PSS (PEDOT:PSS-PEG) shows greatly reduced toxicity to various types of cells. To our surprise, PEGylation of PEDOT PSS could obviously enhance the cellular uptake of these nanoparticles, leading to subsequent immune stimulations of both macrophages and DCs. In contrast, another type of conjugated polymer, polypyrrole (PPy), is found to be an inert material with neither significant cytotoxicity nor noticeable immune-stimulation activity. Interestingly, utilizing ovalbumin (OVA) as a model antigen, it is further uncovered in our ex vivo experiment that PEDOT PSS-PEG may serve as an adjuvant to greatly enhance the immunogenicity of OVA upon simple mixing. Our study on the one hand suggests the promise of developing novel nano-adjuvants based on conjugated polymers, and on the other hand highlights the importance of careful evaluations of the impacts of any new nanomaterials developed for nanomedicine on the immune systems.
Collapse
Affiliation(s)
- Hua Gong
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China.
| | | | | | | | | | | | | |
Collapse
|
29
|
Zacca ER, Crespo MI, Acland RP, Roselli E, Núñez NG, Maccioni M, Maletto BA, Pistoresi-Palencia MC, Morón G. Aging Impairs the Ability of Conventional Dendritic Cells to Cross-Prime CD8+ T Cells upon Stimulation with a TLR7 Ligand. PLoS One 2015; 10:e0140672. [PMID: 26474053 PMCID: PMC4608578 DOI: 10.1371/journal.pone.0140672] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 09/29/2015] [Indexed: 12/22/2022] Open
Abstract
The aging process is accompanied by altered immune system functioning and an increased risk of infection. Dendritic cells (DCs) are antigen-presenting cells that play a key role in both adaptive and innate immunity, but how aging affects DCs and their influence on immunity has not been thoroughly established. Here we examined the function of conventional DCs (cDCs) in old mice after TLR7 stimulation, focusing on their ability to cross-prime CD8+ T cells. Using polyU, a synthetic ssRNA analog, as TLR7 ligand and OVA as an antigen (Ag) model, we found that cDCs from old mice have a poor ability to stimulate a CD8+ T cell-mediated cytotoxic response. cDCs from old mice exhibit alterations in Ag-processing machinery and TLR7 activation. Remarkably, CD8α+ cDCs from old mice have an impaired ability to activate naïve CD8+ T cells and, moreover, a lower capacity to mature and to process exogenous Ag. Taken together, our results suggest that immunosenescence impacts cDC function, affecting the activation of naïve CD8+ T cells and the generation of effector cytotoxic T cells.
Collapse
Affiliation(s)
- Estefanía R. Zacca
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - María I. Crespo
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Rachel P. Acland
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Emiliano Roselli
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Nicolás G. Núñez
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Mariana Maccioni
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Belkys A. Maletto
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - María C. Pistoresi-Palencia
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Gabriel Morón
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- * E-mail:
| |
Collapse
|
30
|
Affiliation(s)
- Ken Shortman
- Immunology Division, The Walter and Eliza Hall Institute and the Centre for Biomedical Research, Burnet Institute, Melbourne, Victoria, Australia
| |
Collapse
|
31
|
A TLR9 agonist enhances the anti-tumor immunity of peptide and lipopeptide vaccines via different mechanisms. Sci Rep 2015. [PMID: 26215533 PMCID: PMC4517169 DOI: 10.1038/srep12578] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The toll-like receptor 9 (TLR9) agonists CpG oligodeoxynucleotides (CpG ODNs) have been recognized as promising adjuvants for vaccines against infectious diseases and cancer. However, the role of TLR9 signaling in the regulation of antigen uptake and presentation is not well understood. Therefore, to investigate the effects of TLR9 signaling, this study used synthetic peptides (IDG) and lipopeptides (lipoIDG), which are internalized by dendritic cells (DCs) via endocytosis-dependent and endocytosis-independent pathways, respectively. Our data demonstrated that the internalization of lipoIDG and IDG by bone marrow-derived dendritic cells (BMDCs) was not enhanced in the presence of CpG ODNs; however, CpG ODNs prolonged the co-localization of IDG with CpG ODNs in early endosomes. Surprisingly, CpG ODNs enhanced CD8+ T cell responses, and the anti-tumor effects of IDG immunization were stronger than those of lipoIDG immunization. LipoIDG admixed with CpG ODNs induced low levels of CD8+ T cells and partially inhibit tumor growth. Our findings suggest that CpG ODNs increase the retention of antigens in early endosomes, which is important for eliciting anti-tumor immunity. These results will facilitate the application of CpG adjuvants in the design of different vaccines.
Collapse
|
32
|
Post-Spaceflight (STS-135) Mouse Splenocytes Demonstrate Altered Activation Properties and Surface Molecule Expression. PLoS One 2015; 10:e0124380. [PMID: 25970640 PMCID: PMC4430214 DOI: 10.1371/journal.pone.0124380] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 03/02/2015] [Indexed: 11/19/2022] Open
Abstract
Alterations in immune function have been documented during or post-spaceflight and in ground based models of microgravity. Identification of immune parameters that are dysregulated during spaceflight is an important step in mitigating crew health risks during deep space missions. The in vitro analysis of leukocyte activity post-spaceflight in both human and animal species is primarily focused on lymphocytic function. This report completes a broader spectrum analysis of mouse lymphocyte and monocyte changes post 13 days orbital flight (mission STS-135). Analysis includes an examination in surface markers for cell activation, and antigen presentation and co-stimulatory molecules. Cytokine production was measured after stimulation with T-cell mitogen or TLR-2, TLR-4, or TLR-5 agonists. Splenocyte surface marker analysis immediate post-spaceflight and after in vitro culture demonstrated unique changes in phenotypic populations between the flight mice and matched treatment ground controls. Post-spaceflight splenocytes (flight splenocytes) had lower expression intensity of CD4+CD25+ and CD8+CD25+ cells, lower percentage of CD11c+MHC II+ cells, and higher percentage of CD11c+MHC I+ populations compared to ground controls. The flight splenocytes demonstrated an increase in phagocytic activity. Stimulation with ConA led to decrease in CD4+ population but increased CD4+CD25+ cells compared to ground controls. Culturing with TLR agonists led to a decrease in CD11c+ population in splenocytes isolated from flight mice compared to ground controls. Consequently, flight splenocytes with or without TLR-agonist stimulation showed a decrease in CD11c+MHC I+, CD11c+MHC II+, and CD11c+CD86+ cells compared to ground controls. Production of IFN-γ was decreased and IL-2 was increased from ConA stimulated flight splenocytes. This study demonstrated that expression of surface molecules can be affected by conditions of spaceflight and impaired responsiveness persists under culture conditions in vitro.
Collapse
|
33
|
Huang QQ, Perlman H, Birkett R, Doyle R, Fang D, Haines GK, Robinson W, Datta S, Huang Z, Li QZ, Phee H, Pope RM. CD11c-mediated deletion of Flip promotes autoreactivity and inflammatory arthritis. Nat Commun 2015; 6:7086. [PMID: 25963626 PMCID: PMC4429912 DOI: 10.1038/ncomms8086] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 04/01/2015] [Indexed: 12/20/2022] Open
Abstract
Dendritic cells (DCs) are critical for immune homeostasis. To target DCs, we generated a mouse line with Flip deficiency in cells that express cre under the CD11c promoter (CD11c-Flip-KO). CD11c-Flip-KO mice spontaneously develop erosive, inflammatory arthritis, resembling rheumatoid arthritis, which is dramatically reduced when these mice are crossed with Rag−/− mice. The CD8α+ DC subset is significantly reduced, along with alterations in NK cells and macrophages. Autoreactive CD4+ T cells and autoantibodies specific for joint tissue are present, and arthritis severity correlates with the number of autoreactive CD4+ T cells and plasmablasts in the joint-draining lymph nodes. Reduced T regulatory cells (Tregs) inversely correlate with arthritis severity, and the transfer of Tregs ameliorates arthritis. This KO line identifies a model that will permit in depth interrogation of the pathogenesis of rheumatoid arthritis, including the role of CD8α+ DCs and other cells of the immune system. Dendritic cells are critical for initiation of immune responses and for induction of tolerance. Here the authors show that deletion of survival factor c-flip in CD11c-expressing cells subset perturbs CD8a+ dendritic cell, NK and macrophage pools, and leads to development of autoimmune arthritis.
Collapse
Affiliation(s)
- Qi-Quan Huang
- Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Harris Perlman
- Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Robert Birkett
- Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Renee Doyle
- Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Deyu Fang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - G Kenneth Haines
- Department of Pathology, Mount Sinai Hospital School of Medicine, New York city, New York 10029, USA
| | - William Robinson
- Division of Immunology and Rheumatology, Department of Medicine, Stanford University School of Medicine, VA Health Care System, Palo Alto, California 94304, USA
| | - Syamal Datta
- Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Zan Huang
- Department of Biochemistry, College of Life Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Quan-Zhen Li
- Department of Immunology and Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - Hyewon Phee
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Richard M Pope
- Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| |
Collapse
|
34
|
Rosalia RA, Cruz LJ, van Duikeren S, Tromp AT, Silva AL, Jiskoot W, de Gruijl T, Löwik C, Oostendorp J, van der Burg SH, Ossendorp F. CD40-targeted dendritic cell delivery of PLGA-nanoparticle vaccines induce potent anti-tumor responses. Biomaterials 2015; 40:88-97. [DOI: 10.1016/j.biomaterials.2014.10.053] [Citation(s) in RCA: 199] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 10/19/2014] [Indexed: 12/14/2022]
|
35
|
Mouri Y, Nishijima H, Kawano H, Hirota F, Sakaguchi N, Morimoto J, Matsumoto M. NF-κB-inducing kinase in thymic stroma establishes central tolerance by orchestrating cross-talk with not only thymocytes but also dendritic cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2014; 193:4356-67. [PMID: 25261487 DOI: 10.4049/jimmunol.1400389] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Essential roles of NF-κB-inducing kinase (NIK) for the development of medullary thymic epithelial cells (mTECs) and regulatory T cells have been highlighted by studies using a strain of mouse bearing a natural mutation of the NIK gene (aly mice). However, the exact mechanisms underlying the defect in thymic cross-talk leading to the breakdown of self-tolerance in aly mice remain elusive. In this study, we demonstrated that production of regulatory T cells and the final maturation process of positively selected conventional αβ T cells are impaired in aly mice, partly because of a lack of mature mTECs. Of note, numbers of thymic dendritic cells and their expression of costimulatory molecules were also affected in aly mice in a thymic stroma-dependent manner. The results suggest a pivotal role of NIK in the thymic stroma in establishing self-tolerance by orchestrating cross-talk between mTECs and dendritic cells as well as thymocytes. In addition, we showed that negative selection was impaired in aly mice as a result of the stromal defect, which accounts for the development of organ-specific autoimmunity through a lack of normal NIK.
Collapse
Affiliation(s)
- Yasuhiro Mouri
- Division of Molecular Immunology, Institute for Enzyme Research, University of Tokushima, Tokushima 770-8503, Japan; and
| | - Hitoshi Nishijima
- Division of Molecular Immunology, Institute for Enzyme Research, University of Tokushima, Tokushima 770-8503, Japan; and
| | - Hiroshi Kawano
- Division of Molecular Immunology, Institute for Enzyme Research, University of Tokushima, Tokushima 770-8503, Japan; and
| | - Fumiko Hirota
- Division of Molecular Immunology, Institute for Enzyme Research, University of Tokushima, Tokushima 770-8503, Japan; and
| | - Nobuo Sakaguchi
- Department of Immunology, Graduate School of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Junko Morimoto
- Division of Molecular Immunology, Institute for Enzyme Research, University of Tokushima, Tokushima 770-8503, Japan; and
| | - Mitsuru Matsumoto
- Division of Molecular Immunology, Institute for Enzyme Research, University of Tokushima, Tokushima 770-8503, Japan; and
| |
Collapse
|
36
|
Petersen TR, Knight DA, Tang CW, Osmond TL, Hermans IF. Batf3-independent langerin- CX3CR1- CD8α+ splenic DCs represent a precursor for classical cross-presenting CD8α+ DCs. J Leukoc Biol 2014; 96:1001-10. [PMID: 25170118 DOI: 10.1189/jlb.1a0314-130r] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
This study tests the hypothesis that CD8α(+) DCs in the spleen of mice contain an immature precursor for functionally mature, "classical" cross-presenting CD8α(+) DCs. The lymphoid tissues contain a network of phenotypically distinct DCs with unique roles in surveillance and immunity. Splenic CD8α(+) DCs have been shown to exhibit a heightened capacity for phagocytosis of cellular material, secretion of IL-12, and cross-priming of CD8(+) T cells. However, this population can be subdivided further on the basis of expression of both langerin/CD207 and CX(3)CR1. We therefore evaluated the functional capacities of these different subsets. The CX(3)CR1(+) CD8α(+) DC subset does not express langerin and does not exhibit the classical features above. The CX(3)CR1(-) CD8α(+) DC can be divided into langerin-positive and negative populations, both of which express DEC205, Clec9A, and high basal levels of CD86. However, the langerin(+) CX(3)CR1(-) CD8α(+) subset has a superior capacity for acquiring cellular material and producing IL-12 and is more susceptible to activation-induced cell death. Significantly, following purification and adoptive transfer into new hosts, the langerin(-) CX(3)CR1(-) CD8α(+) subset survives longer, up-regulates expression of langerin, and becomes more susceptible to activation-induced cell death. Last, in contrast to langerin(+) CX(3)CR1(-) CD8α(+), the langerin(-) CX(3)CR1(-) CD8α(+) are still present in Batf3(-/-) mice. We conclude that the classical attributes of CD8α(+) DC are confined primarily to the langerin(+) CX(3)CR1(-) CD8α(+) DC population and that the langerin(-) CX(3)CR1(-) subset represents a Batf3-independent precursor to this mature population.
Collapse
Affiliation(s)
- Troels R Petersen
- Malaghan Institute of Medical Research, Wellington, New Zealand; and
| | - Deborah A Knight
- Malaghan Institute of Medical Research, Wellington, New Zealand; and
| | - Ching-Wen Tang
- Malaghan Institute of Medical Research, Wellington, New Zealand; and
| | - Taryn L Osmond
- Malaghan Institute of Medical Research, Wellington, New Zealand; and School of Biological Sciences, Victoria University of Wellington, New Zealand
| | - Ian F Hermans
- Malaghan Institute of Medical Research, Wellington, New Zealand; and School of Biological Sciences, Victoria University of Wellington, New Zealand
| |
Collapse
|
37
|
Duewell P, Steger A, Lohr H, Bourhis H, Hoelz H, Kirchleitner SV, Stieg MR, Grassmann S, Kobold S, Siveke JT, Endres S, Schnurr M. RIG-I-like helicases induce immunogenic cell death of pancreatic cancer cells and sensitize tumors toward killing by CD8(+) T cells. Cell Death Differ 2014; 21:1825-37. [PMID: 25012502 DOI: 10.1038/cdd.2014.96] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 05/06/2014] [Accepted: 06/05/2014] [Indexed: 12/13/2022] Open
Abstract
Pancreatic cancer is characterized by a microenvironment suppressing immune responses. RIG-I-like helicases (RLH) are immunoreceptors for viral RNA that induce an antiviral response program via the production of type I interferons (IFN) and apoptosis in susceptible cells. We recently identified RLH as therapeutic targets of pancreatic cancer for counteracting immunosuppressive mechanisms and apoptosis induction. Here, we investigated immunogenic consequences of RLH-induced tumor cell death. Treatment of murine pancreatic cancer cell lines with RLH ligands induced production of type I IFN and proinflammatory cytokines. In addition, tumor cells died via intrinsic apoptosis and displayed features of immunogenic cell death, such as release of HMGB1 and translocation of calreticulin to the outer cell membrane. RLH-activated tumor cells led to activation of dendritic cells (DCs), which was mediated by tumor-derived type I IFN, whereas TLR, RAGE or inflammasome signaling was dispensable. Importantly, CD8α(+) DCs effectively engulfed apoptotic tumor material and cross-presented tumor-associated antigen to naive CD8(+) T cells. In comparison, tumor cell death mediated by oxaliplatin, staurosporine or mechanical disruption failed to induce DC activation and antigen presentation. Tumor cells treated with sublethal doses of RLH ligands upregulated Fas and MHC-I expression and were effectively sensitized towards Fas-mediated apoptosis and cytotoxic T lymphocyte (CTL)-mediated lysis. Vaccination of mice with RLH-activated tumor cells induced protective antitumor immunity in vivo. In addition, MDA5-based immunotherapy led to effective tumor control of established pancreatic tumors. In summary, RLH ligands induce a highly immunogenic form of tumor cell death linking innate and adaptive immunity.
Collapse
Affiliation(s)
- P Duewell
- 1] Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany [2] Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - A Steger
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - H Lohr
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - H Bourhis
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - H Hoelz
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - S V Kirchleitner
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - M R Stieg
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - S Grassmann
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - S Kobold
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - J T Siveke
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Ziemssenstrasse 1, München, Germany
| | - S Endres
- Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| | - M Schnurr
- 1] Abteilung für Klinische Pharmakologie and Center for Integrated Protein Science Munich (CIPS M), Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany [2] Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstrasse 1, München, Germany
| |
Collapse
|
38
|
Abstract
Adaptive immune responses, characterized by T cells and B cells engaging and responding to specific antigens, can be raised by biomaterials containing proteins, peptides, and other biomolecules. How does one avoid, control, or exploit such responses? This review will discuss major properties and processes that influence biomaterials-directed adaptive immunity, including the physical dimensions of a material, its epitope content, and its multivalency. Selected strategies involving novel biomaterials designs will be discussed to illustrate these points of control. Specific immunological processes that biomaterials are being developed to direct will be highlighted, including minimally inflammatory scaffolds for tissue repair and immunotherapies eliciting desired B cell (antibody) responses, T cell responses, or tolerance. The continuing development of a knowledge base for specifying the strength and phenotype of biomaterials-mediated adaptive immune responses is important, not only for the engineering of better vaccines and immunotherapies, but also for managing immune responses against newer generations of increasingly biological and biomolecular materials in contexts such as tissue repair, tissue engineering, or cell delivery.
Collapse
|
39
|
Parasite fate and involvement of infected cells in the induction of CD4+ and CD8+ T cell responses to Toxoplasma gondii. PLoS Pathog 2014; 10:e1004047. [PMID: 24722202 PMCID: PMC3983043 DOI: 10.1371/journal.ppat.1004047] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 02/18/2014] [Indexed: 01/04/2023] Open
Abstract
During infection with the intracellular parasite Toxoplasma gondii, the presentation of parasite-derived antigens to CD4+ and CD8+ T cells is essential for long-term resistance to this pathogen. Fundamental questions remain regarding the roles of phagocytosis and active invasion in the events that lead to the processing and presentation of parasite antigens. To understand the most proximal events in this process, an attenuated non-replicating strain of T. gondii (the cpsII strain) was combined with a cytometry-based approach to distinguish active invasion from phagocytic uptake. In vivo studies revealed that T. gondii disproportionately infected dendritic cells and macrophages, and that infected dendritic cells and macrophages displayed an activated phenotype characterized by enhanced levels of CD86 compared to cells that had phagocytosed the parasite, thus suggesting a role for these cells in priming naïve T cells. Indeed, dendritic cells were required for optimal CD4+ and CD8+ T cell responses, and the phagocytosis of heat-killed or invasion-blocked parasites was not sufficient to induce T cell responses. Rather, the selective transfer of cpsII-infected dendritic cells or macrophages (but not those that had phagocytosed the parasite) to naïve mice potently induced CD4+ and CD8+ T cell responses, and conferred protection against challenge with virulent T. gondii. Collectively, these results point toward a critical role for actively infected host cells in initiating T. gondii-specific CD4+ and CD8+ T cell responses. CD4+ and CD8+ T cells are critical for controlling many infections. To generate a T cell response during infection, T cells must encounter the microbial peptides that they recognize bound to MHC molecules on the surfaces of other cells, such as dendritic cells. It is currently unclear how dendritic cells acquire the antigens they present to T cells during infection with many intracellular pathogens. It is possible that these antigens are phagocytosed and processed by dendritic cells, or antigens may be presented by cells that are infected by pathogens such as Toxoplasma gondii, which invades host cells independently of phagocytosis. To differentiate these pathways, we developed a novel technique to track the fate of T. gondii in vivo that distinguishes actively infected cells from those that phagocytosed parasites. This technique was used to examine each of these cell populations. We also used pharmacological inhibitors of parasite invasion, and the transfer of sort-purified infected or uninfected dendritic cells and macrophages to determine what roles phagocytosis and active invasion have in the initiation of T cell responses. Our results demonstrate that phagocytosis of parasites is not sufficient to induce CD4+ or CD8+ T cell responses, whereas infected cells are critical for this process.
Collapse
|
40
|
Somamoto T, Koppang EO, Fischer U. Antiviral functions of CD8(+) cytotoxic T cells in teleost fish. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 43:197-204. [PMID: 23938605 DOI: 10.1016/j.dci.2013.07.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Revised: 07/24/2013] [Accepted: 07/24/2013] [Indexed: 06/02/2023]
Abstract
Cytotoxic T-cells (CTLs) play a pivotal role in eliminating viruses in mammalian adaptive immune system. Many recent studies on T-cell immunity of fish have suggested that teleost CTLs are also important for antiviral immunity. Cellular functional studies using clonal ginbuan crucian carp and rainbow trout have provided in vivo and in vitro evidence that in many respects, virus-specific CTLs of fish have functions similar to those of mammalian CTLs. In addition, mRNA expression profiles of CTL-related molecules, such as CD8, TCR and MHC class I, have shown that in a wide range of fish species, CTLs are involved in antiviral adaptive immunity. These findings are a basis to formulate possible vaccination strategies to trigger effective antiviral CTL responses in teleost fish. This review describes recent advances in our understanding of antiviral CTL functions in teleost fish and discusses vaccination strategies for efficiently inducing CTL activities.
Collapse
Affiliation(s)
- Tomonori Somamoto
- Laboratory of Marine Biochemistry, Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 812-8581, Japan.
| | - Erling Olaf Koppang
- Section of Anatomy and Pathology, Institute of Basic Science and Aquatic Medicine, Norwegian School of Veterinary Science, Ullevålsveien 72, 0033 Oslo, Norway
| | - Uwe Fischer
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Infectology, 17493 Greifswald-Insel Riems, Germany
| |
Collapse
|
41
|
Globisch T, Steiner N, Fülle L, Lukacs-Kornek V, Degrandi D, Dresing P, Alferink J, Lang R, Pfeffer K, Beyer M, Weighardt H, Kurts C, Ulas T, Schultze JL, Förster I. Cytokine-dependent regulation of dendritic cell differentiation in the splenic microenvironment. Eur J Immunol 2014; 44:500-10. [PMID: 24136200 DOI: 10.1002/eji.201343820] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 09/02/2013] [Accepted: 09/18/2013] [Indexed: 12/21/2022]
Abstract
The DC-derived chemokine CCL17, a ligand of CCR4, has been shown to promote various inflammatory diseases such as atopic dermatitis, atherosclerosis, and inflammatory bowel disease. Under steady-state conditions, and even after systemic stimulation with LPS, CCL17 is not expressed in resident splenic DCs as opposed to CD8α⁻CD11b⁺ LN DCs, which produce large amounts of CCL17 in particular after maturation. Upon systemic NKT cell activation through α-galactosylceramide stimulation however, CCL17 can be upregulated in both CD8α⁻ and CD8α⁺ splenic DC subsets and enhances cross-presentation of exogenous antigens. Based on genome-wide expression profiling, we now show that splenic CD11b⁺ DCs are susceptible to IFN-γ-mediated suppression of CCL17, whereas LN CD11b⁺CCL17⁺ DCs downregulate the IFN-γR and are much less responsive to IFN-γ. Under inflammatory conditions, particularly in the absence of IFN-γ signaling in IFN-γRKO mice, CCL17 expression is strongly induced in a major proportion of splenic DCs by the action of GM-CSF in concert with IL-4. Our findings demonstrate that the local cytokine milieu and differential cytokine responsiveness of DC subsets regulate lymphoid organ specific immune responses at the level of chemokine expression.
Collapse
Affiliation(s)
- Theresa Globisch
- Department of Molecular Immunology, IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany; Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Chen L, Fabian KL, Taylor JL, Storkus WJ. Therapeutic use of dendritic cells to promote the extranodal priming of anti-tumor immunity. Front Immunol 2013; 4:388. [PMID: 24348473 PMCID: PMC3843121 DOI: 10.3389/fimmu.2013.00388] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 11/05/2013] [Indexed: 12/17/2022] Open
Abstract
Ectopic lymphoid tissue, also known as tertiary lymphoid organs (TLO) develop adaptively within sites of chronic tissue inflammation, thereby allowing the host to efficiently crossprime specific immune effector cells within sites of disease. Recent evidence suggests that the presence of TLO in the tumor microenvironment (TME) predicts better overall survival. We will discuss the relevance of extranodal T cell priming within the TME as a means to effectively promote anti-tumor immunity and the strategic use of dendritic cell (DC)-based therapies to reinforce this clinically preferred process in the cancer-bearing host.
Collapse
Affiliation(s)
- Lu Chen
- Department of Immunology, University of Pittsburgh School of Medicine , Pittsburgh, PA , USA
| | - Kellsye L Fabian
- Department of Immunology, University of Pittsburgh School of Medicine , Pittsburgh, PA , USA
| | - Jennifer L Taylor
- Department of Dermatology, University of Pittsburgh School of Medicine , Pittsburgh, PA , USA
| | - Walter J Storkus
- Department of Immunology, University of Pittsburgh School of Medicine , Pittsburgh, PA , USA ; Department of Dermatology, University of Pittsburgh School of Medicine , Pittsburgh, PA , USA ; University of Pittsburgh Cancer Institute , Pittsburgh, PA , USA
| |
Collapse
|
43
|
Benencia F. RNA vaccines for anti-tumor therapy. World J Exp Med 2013; 3:62-73. [DOI: 10.5493/wjem.v3.i4.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/27/2013] [Accepted: 11/05/2013] [Indexed: 02/06/2023] Open
Abstract
The immune system is able to recognize tumor antigens and this has been the basis for the development of cancer immunotherapies. The immune system can be instructed to recognize and attack tumor cells by means of vaccination strategies. One such strategy involves the delivery of tumor antigen as genetic material. Herewith we describe the use of RNA encoding tumor antigens for vaccination purposes in tumor settings. RNA has features that are interesting for vaccination. Upon transfection, the RNA has no possibility of integration into the genome, and the tumor translated proteins enter the intrinsic antigen processing pathway thus enabling presentation by MHC-I molecules. This can specifically activate cytotoxic CD8 T cells that can attack and kill tumor cells. RNA can be delivered as a naked molecule for vaccination purposes or can be used to transfect dendritic cells. The combination of RNA technology with dendritic cell vaccination provides a powerful tool for cancer immunotherapies.
Collapse
|
44
|
Guerder S, Joncker N, Mahiddine K, Serre L. Dendritic cells in tolerance and autoimmune diabetes. Curr Opin Immunol 2013; 25:670-5. [PMID: 24168964 DOI: 10.1016/j.coi.2013.10.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 09/27/2013] [Accepted: 10/03/2013] [Indexed: 01/22/2023]
Abstract
Type 1 diabetes is a T cell mediated autoimmune disease where both central and peripheral mechanisms effect T cell tolerance induction. Dendritic cells (DCs) are key regulators of innate and adaptive immune responses. They significantly contribute to central and peripheral T cell tolerance and, following maturation, induce the activation and differentiation of naïve T cells into effector and memory cells. DCs are also major actors in inflammation. Given these multiple effects on immune responses, DCs are suspected to contribute to autoimmune diseases. In this review we discuss how some specific features of DC may contribute to type 1 diabetes.
Collapse
Affiliation(s)
- Sylvie Guerder
- Centre de Physiopathologie de Toulouse Purpan, Université Toulouse III Paul-Sabatier, Toulouse F-31300, France; INSERM, U1043, Toulouse F-31300, France; CNRS, UMR5282, Toulouse F-31300, France.
| | | | | | | |
Collapse
|
45
|
Spel L, Boelens JJ, Nierkens S, Boes M. Antitumor immune responses mediated by dendritic cells: How signals derived from dying cancer cells drive antigen cross-presentation. Oncoimmunology 2013; 2:e26403. [PMID: 24482744 PMCID: PMC3894247 DOI: 10.4161/onci.26403] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 09/06/2013] [Accepted: 09/06/2013] [Indexed: 12/20/2022] Open
Abstract
Dendritic cells (DCs) are essential for the induction of adaptive immune responses against malignant cells by virtue of their capacity to effectively cross-present exogenous antigens to T lymphocytes. Dying cancer cells are indeed a rich source of antigens that may be harnessed for the development of DC-based vaccines. In particular, malignant cells succumbing to apoptosis, rather than necrosis, appear to release antigens in a manner that allows for the elicitation of adaptive immune responses. In this review, we describe the processes that mediate the cross-presentation of antigens released by apoptotic cancer cells to CD8+ T lymphocytes, resulting in the activation of protective tumor-specific immune responses.
Collapse
Affiliation(s)
- Lotte Spel
- U-DANCE and Laboratory of Translational Immunology; University Medical Center Utrecht; Utrecht, The Netherlands
| | - Jaap-Jan Boelens
- U-DANCE and Laboratory of Translational Immunology; University Medical Center Utrecht; Utrecht, The Netherlands
| | - Stefan Nierkens
- U-DANCE and Laboratory of Translational Immunology; University Medical Center Utrecht; Utrecht, The Netherlands
| | - Marianne Boes
- U-DANCE and Laboratory of Translational Immunology; University Medical Center Utrecht; Utrecht, The Netherlands
| |
Collapse
|
46
|
Welty NE, Staley C, Ghilardi N, Sadowsky MJ, Igyártó BZ, Kaplan DH. Intestinal lamina propria dendritic cells maintain T cell homeostasis but do not affect commensalism. ACTA ACUST UNITED AC 2013; 210:2011-24. [PMID: 24019552 PMCID: PMC3782055 DOI: 10.1084/jem.20130728] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Targeted deletion of CD103+CD11b+ LP DCs results in reduced LP Th17 cells at steady state, but has no impact on Citrobacter infection or the composition of the intestinal microbiota. Dendritic cells (DCs) in the intestinal lamina propria (LP) are composed of two CD103+ subsets that differ in CD11b expression. We report here that Langerin is expressed by human LP DCs and that transgenic human langerin drives expression in CD103+CD11b+ LP DCs in mice. This subset was ablated in huLangerin-DTA mice, resulting in reduced LP Th17 cells without affecting Th1 or T reg cells. Notably, cognate DC–T cell interactions were not required for Th17 development, as this response was intact in huLangerin-Cre I-Aβfl/fl mice. In contrast, responses to intestinal infection or flagellin administration were unaffected by the absence of CD103+CD11b+ DCs. huLangerin-DTA x BatF3−/− mice lacked both CD103+ LP DC subsets, resulting in defective gut homing and fewer LP T reg cells. Despite these defects in LP DCs and resident T cells, we did not observe alterations of intestinal microbial communities. Thus, CD103+ LP DC subsets control T cell homeostasis through both nonredundant and overlapping mechanisms.
Collapse
Affiliation(s)
- Nathan E Welty
- Department of Dermatology, Center for Immunology and 2 Department of Soil, Water, and Climate, Biotechnology Institute, University of Minnesota, Minneapolis, MN 55455
| | | | | | | | | | | |
Collapse
|
47
|
Pfeiffer IA, Zinser E, Strasser E, Stein MF, Dörrie J, Schaft N, Steinkasserer A, Knippertz I. Leukoreduction system chambers are an efficient, valid, and economic source of functional monocyte-derived dendritic cells and lymphocytes. Immunobiology 2013; 218:1392-401. [PMID: 23932569 DOI: 10.1016/j.imbio.2013.07.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 07/02/2013] [Accepted: 07/05/2013] [Indexed: 02/02/2023]
Abstract
The demand for human monocyte-derived dendritic cells (moDCs), as well as for primary human B and T lymphocytes for immunological research purposes has been increased in recent years. Classically, these monocytes are isolated from blood, leukapheresis products or buffy coats of healthy donors by plastic adherence of peripheral blood mononuclear cells (PBMCs), followed by stimulation with granulocyte macrophage colony-stimulating factor (GM-CSF) and interleukin (IL)-4, while lymphocytes are usually isolated from the non-adherent fraction (NAF) by magnetic cell sorting. However, donor-blood is a limited resource and not every blood bank offers leukapheresis products or buffy coats for laboratory use. Additionally, a leukapheresis is very expensive and also the generation/isolation of cells is time- and cost-intensive. To overcome some of these obstacles, we evaluated if low-cost leukoreduction system chambers (LRSCs), which arise after routine donor plateletpheresis procedures, and are usually discarded, would be an alternative and appropriate source of PBMCs to generate moDCs and to isolate lymphocytes. By analyzing the number and phenotype of immature and mature dendritic cells (DCs), as well as of B and T lymphocytes derived from LRSCs, we found all cells to be of high quantity and quality. Further investigations on DCs comprising transwell migration assays, allogeneic mixed lymphocyte reactions (MLR), cytokine secretion assays, and cytotoxic T cell induction assays revealed high migratory, as well as stimulatory capacity of these cells. In addition, DCs and T cells were efficiently electroporated with mRNA and showed characteristic cytokine production after co-culture, demonstrating LRSCs as an efficient, valid, and economic source for generation of moDCs and lymphocytes for research purposes.
Collapse
Affiliation(s)
- Isabell A Pfeiffer
- Department of Dermatology, Universitätsklinikum Erlangen, Hartmannstraße 14, 91052 Erlangen, Germany
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Hemann EA, Kang SM, Legge KL. Protective CD8 T cell-mediated immunity against influenza A virus infection following influenza virus-like particle vaccination. THE JOURNAL OF IMMUNOLOGY 2013; 191:2486-94. [PMID: 23885108 DOI: 10.4049/jimmunol.1300954] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The development of influenza A virus (IAV) vaccines capable of inducing cytotoxic CD8 T cell responses could potentially provide superior, long-term protection against multiple, heterologous strains of IAV. Although prior studies demonstrated the effectiveness of baculovirus-derived virus-like particle (VLP) vaccination in generating Ab-mediated protection, the role that CD8 T cell immunity plays in overall VLP-mediated protection is less-well understood. In this article, we demonstrate that intranasal vaccination of mice with a VLP containing the hemagglutinin and matrix 1 proteins of IAV/PR/8/34 leads to a significant increase in hemagglutinin 533-specific CD8 T cells in the lungs and protection following subsequent homologous challenge with IAV. VLP-mediated protection was significantly reduced by CD8 T cell depletion, indicating a critical role for CD8 T cells in protective immunity. Importantly, our results show that VLP vaccine-induced CD8 T cell-mediated protection is not limited to homologous IAV strains. VLP vaccination leads to an increase in protection following heterosubtypic challenge with a strain of IAV that avoids vaccine-induced neutralizing Abs but contains conserved, immunodominant CD8 T cell epitopes. Overall, our results demonstrate the ability of influenza protein-containing VLPs to prime IAV-specific CD8 T cell responses that contribute to protection from homo- and heterosubtypic IAV infections. These results further suggest that vaccination strategies focused on the development of cross-protective CD8 T cell responses may contribute to the development of "universal" IAV vaccines.
Collapse
Affiliation(s)
- Emily A Hemann
- Department of Pathology and Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA
| | | | | |
Collapse
|
49
|
The Trypanosoma brucei gambiense secretome impairs lipopolysaccharide-induced maturation, cytokine production, and allostimulatory capacity of dendritic cells. Infect Immun 2013; 81:3300-8. [PMID: 23798533 DOI: 10.1128/iai.00125-13] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Trypanosoma brucei gambiense, a parasitic protozoan belonging to kinetoplastids, is the main etiological agent of human African trypanosomiasis (HAT), or sleeping sickness. One major characteristic of this disease is the dysregulation of the host immune system. The present study demonstrates that the secretome (excreted-secreted proteins) of T. b. gambiense impairs the lipopolysaccharide (LPS)-induced maturation of murine dendritic cells (DCs). The upregulation of major histocompatibility complex class II, CD40, CD80, and CD86 molecules, as well as the secretion of cytokines such as tumor necrosis factor alpha, interleukin-10 (IL-10), and IL-6, which are normally released at high levels by LPS-stimulated DCs, is significantly reduced when these cells are cultured in the presence of the T. b. gambiense secretome. Moreover, the inhibition of DC maturation results in the loss of their allostimulatory capacity, leading to a dramatic decrease in Th1/Th2 cytokine production by cocultured lymphocytes. These results provide new insights into a novel efficient immunosuppressive mechanism directly involving the alteration of DC function which might be used by T. b. gambiense to interfere with the host immune responses in HAT and promote the infectious process.
Collapse
|
50
|
Human CD1c+ dendritic cells secrete high levels of IL-12 and potently prime cytotoxic T-cell responses. Blood 2013; 122:932-42. [PMID: 23794066 DOI: 10.1182/blood-2013-04-495424] [Citation(s) in RCA: 249] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Dendritic cells (DC) have the unique capacities to induce primary T-cell responses. In mice, CD8α(+)DC are specialized to cross-prime CD8(+) T cells and produce interleukin-12 (IL-12) that promotes cytotoxicity. Human BDCA-3(+)DC share several relevant characteristics with CD8α(+)DC, but the capacities of human DC subsets to induce CD8(+) T-cell responses are incompletely understood. Here we compared CD1c(+) myeloid DC (mDC)1, BDCA-3(+)mDC2, and plasmacytoid DC (pDC) in peripheral blood and lymphoid tissues for phenotype, cytokine production, and their capacities to prime cytotoxic T cells. mDC1 were surprisingly the only human DC that secreted high amounts of IL-12p70, but they required combinational Toll-like receptor (TLR) stimulation. mDC2 and pDC produced interferon-λ and interferon-α, respectively. Importantly, mDC1 and mDC2 required different combinations of TLR ligands to cross-present protein antigens to CD8(+) T cells. pDC were inefficient and also expressed lower levels of major histocompatibility complex and co-stimulatory molecules. Nevertheless, all DC induced CD8(+) memory T-cell expansions upon licensing by CD4(+) T cells, and primed naive CD8(+) T cells following appropriate TLR stimulation. However, because mDC1 produced IL-12, they induced the highest levels of cytotoxic molecules. In conclusion, CD1c(+)mDC1 are the relevant source of IL-12 for naive T cells and are fully equipped to cross-prime cytotoxic T-cell responses.
Collapse
|