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Li J, Xing H, Meng F, Liu T, Hong X, Han X, Dong Y, Li M, Wang Z, Zhang S, Cui C, Zheng A. Virus-Mimetic Extracellular-Vesicle Vaccine Boosts Systemic and Mucosal Immunity via Immune Recruitment. ACS NANO 2024. [PMID: 39013102 DOI: 10.1021/acsnano.4c01277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Mucosal vaccines can prevent viruses from infecting the respiratory mucosa, rather than only curtailing infection and protecting against the development of disease symptoms. The SARS-CoV-2 spike receptor-binding domain (RBD) is a compelling vaccine target but is undermined by suboptimal mucosal immunogenicity. Here, we report a SARS-CoV-2-mimetic extracellular-vesicle vaccine developed using genetic engineering and dendritic cell membrane budding. After mucosal immunization, the vaccine recruits antigen-presenting cells rapidly initiating a strong innate immune response. Notably, it obviates the need for adjuvants and can induce germinal center formation through both intramuscular and intratracheal vaccination. It not only elicits high levels of RBD-specific antibodies but also stimulates extensive cellular immunity in the respiratory mucosa. A sequential immunization strategy, starting with an intramuscular injection followed by an intratracheal booster, significantly bolsters mucosal immunity with high levels of IgA and tissue-resident memory T cell responses, thereby establishing a formidable defense against pseudovirus infection.
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Affiliation(s)
- Jingru Li
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
- Beijing Laboratory of Biomedical Materials, Beijing 100069, China
| | - Haonan Xing
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Fan Meng
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Ting Liu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
- Beijing Laboratory of Biomedical Materials, Beijing 100069, China
| | - Xiaoxuan Hong
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
- Beijing Laboratory of Biomedical Materials, Beijing 100069, China
| | - Xiaolu Han
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Yuhan Dong
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Meng Li
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Zengming Wang
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Shuang Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
- Beijing Laboratory of Biomedical Materials, Beijing 100069, China
| | - Chunying Cui
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
- Beijing Laboratory of Biomedical Materials, Beijing 100069, China
| | - Aiping Zheng
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
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Schmidt S, Sassu EL, Vatzia E, Pierron A, Lagler J, Mair KH, Stadler M, Knecht C, Spergser J, Dolezal M, Springer S, Theuß T, Fachinger V, Ladinig A, Saalmüller A, Gerner W. Vaccination and Infection of Swine With Salmonella Typhimurium Induces a Systemic and Local Multifunctional CD4 + T-Cell Response. Front Immunol 2021; 11:603089. [PMID: 33584671 PMCID: PMC7874209 DOI: 10.3389/fimmu.2020.603089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/25/2020] [Indexed: 01/14/2023] Open
Abstract
The gram-negative facultative intracellular bacteria Salmonella Typhimurium (STM) often leads to subclinical infections in pigs, but can also cause severe enterocolitis in this species. Due to its high zoonotic potential, the pathogen is likewise dangerous for humans. Vaccination with a live attenuated STM strain (Salmoporc) is regarded as an effective method to control STM infections in affected pig herds. However, information on the cellular immune response of swine against STM is still scarce. In this study, we investigated the T-cell immune response in pigs that were vaccinated twice with Salmoporc followed by a challenge infection with a virulent STM strain. Blood- and organ-derived lymphocytes (spleen, tonsils, jejunal and ileocolic lymph nodes, jejunum, ileum) were stimulated in vitro with heat-inactivated STM. Subsequently, CD4+ T cells present in these cell preparations were analyzed for the production of IFN-γ, TNF-α, and IL-17A by flow cytometry and Boolean gating. Highest frequencies of STM-specific cytokine-producing CD4+ T cells were found in lamina propria lymphocytes of jejunum and ileum. Significant differences of the relative abundance of cytokine-producing phenotypes between control group and vaccinated + infected animals were detected in most organs, but dominated in gut and lymph node-residing CD4+ T cells. IL-17A producing CD4+ T cells dominated in gut and gut-draining lymph nodes, whereas IFN-γ/TNF-α co-producing CD4+ T cells were present in all locations. Additionally, the majority of cytokine-producing CD4+ T cells had a CD8α+CD27- phenotype, indicative of a late effector or effector memory stage of differentiation. In summary, we show that Salmonella-specific multifunctional CD4+ T cells exist in vaccinated and infected pigs, dominate in the gut and most likely contribute to protective immunity against STM in the pig.
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Affiliation(s)
- Selma Schmidt
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Elena L Sassu
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Eleni Vatzia
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Alix Pierron
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Julia Lagler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.,Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Kerstin H Mair
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Maria Stadler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Christian Knecht
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Joachim Spergser
- Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Marlies Dolezal
- Platform for Bioinformatics and Biostatistics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | | | - Tobias Theuß
- Ceva Innovation Center GmbH, Dessau-Roßlau, Germany
| | | | - Andrea Ladinig
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
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Chasaide CN, Mills KH. Next-Generation Pertussis Vaccines Based on the Induction of Protective T Cells in the Respiratory Tract. Vaccines (Basel) 2020; 8:E621. [PMID: 33096737 PMCID: PMC7711671 DOI: 10.3390/vaccines8040621] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/13/2020] [Accepted: 10/16/2020] [Indexed: 12/11/2022] Open
Abstract
Immunization with current acellular pertussis (aP) vaccines protects against severe pertussis, but immunity wanes rapidly after vaccination and these vaccines do not prevent nasal colonization with Bordetella pertussis. Studies in mouse and baboon models have demonstrated that Th1 and Th17 responses are integral to protective immunity induced by previous infection with B. pertussis and immunization with whole cell pertussis (wP) vaccines. Mucosal Th17 cells, IL-17 and secretory IgA (sIgA) are particularly important in generating sustained sterilizing immunity in the nasal cavity. Current aP vaccines induce potent IgG and Th2-skewed T cell responses but are less effective at generating Th1 and Th17 responses and fail to prime respiratory tissue-resident memory T (TRM) cells, that maintain long-term immunity at mucosal sites. In contrast, a live attenuated pertussis vaccine, pertussis outer membrane vesicle (OMV) vaccines or aP vaccines formulated with novel adjuvants do induce cellular immune responses in the respiratory tract, especially when delivered by the intranasal route. An increased understanding of the mechanisms of sustained protective immunity, especially the role of respiratory TRM cells, will facilitate the development of next generation pertussis vaccines that not only protect against pertussis disease, but prevent nasal colonization and transmission of B. pertussis.
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Affiliation(s)
| | - Kingston H.G. Mills
- School of Biochemistry and Immunology, Trinity College Dublin, 2, D02 PN40 Dublin, Ireland;
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Wang C, Yan B, Zhang L. The epithelium-derived inflammatory mediators of chronic rhinosinusitis with nasal polyps. Expert Rev Clin Immunol 2020; 16:293-310. [PMID: 31986923 DOI: 10.1080/1744666x.2020.1723417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Chengshuo Wang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
| | - Bing Yan
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Luo Zhang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
- Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China
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5
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Ickrath P, Scherzad A, Kleinsasser N, Ginzkey C, Hagen R, Hackenberg S. Influence of nasal polyp tissue on the differentiation and activation of T lymphocytes in a co-culture system. Biomed Rep 2019; 10:119-126. [PMID: 30719290 DOI: 10.3892/br.2019.1185] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 12/18/2018] [Indexed: 12/22/2022] Open
Abstract
T cell subpopulations in nasal polyps differ from peripheral lymphocytes in patients with chronic rhinosinusitis with nasal polyps (CRSwNP). However, little is known about the modulatory influence of the inflamed nasal polyp epithelial cells on the phenotype of the T cells. The aim of the present study was to assess this interaction. Tissue and blood samples were collected from 16 patients undergoing paranasal sinus surgery. Polypoid tissue was cultured under air-liquid interface conditions. Subsequently, cluster of differentiation (CD)3/CD28 activated peripheral lymphocytes from the same patients were added. After 3 days lymphocytes were separated from co-culture and analyzed by multicolor flow cytometry. Additionally, cytokine expression of the polyp tissue was measured using a human T helper cell (TH)1/TH2/TH17 antibody array. Viability staining of CD3+ lymphocytes detected fewer apoptotic cells under co-culture conditions compared with in mono-culture. There was a significantly higher frequency of CD4+ and CD8+ T cells in the co-culture system than in PBMC culture alone. Human leukocyte antigen (HLA)-DR isotype was significantly downregulated on co-cultured CD3+ lymphocytes and CD3+CD4+ T cells compared with the mono-cultured counterparts. Conventional Forkhead box P3- memory CD4+ T cells and activated regulatory T cells increased in frequency, and resting regulatory T cells decreased in the co-culture. Cytokine analysis identified expression of interleukin (IL)-6, IL-6 receptor, granulocyte-macrophage colony-stimulating factor, transforming growth factor-β and macrophage inflammatory protein-3 in the polyp tissue. In summary, the present study performed a comparison between peripheral lymphocytes cultured with and without nasal polyp tissue cells was performed. The downregulation of HLA and the differentiation of Treg and Tconv by nasal polypoid tissue on PBMCs was demonstrated. Interestingly, the in vivo downregulation of HLA-DR on CD3+ lymphocytes, as reported previously, was confirmed in vitro. The inhibitory effect of polypoid tissue on the activation of lymphocytes is a possible pathogenic mechanism underlying CRSwNP.
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Affiliation(s)
- Pascal Ickrath
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Würzburg, D-97080 Würzburg, Germany
| | - Agmal Scherzad
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Würzburg, D-97080 Würzburg, Germany
| | - Norbert Kleinsasser
- Department of Otorhinolaryngology, Head and Neck Surgery, Kepler University Hospital, 4021 Linz, Austria
| | - Chr Ginzkey
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Otto Koerner Rostock University Medical Center, D-18057 Rostock, Germany
| | - Rudolf Hagen
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Würzburg, D-97080 Würzburg, Germany
| | - Stephan Hackenberg
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Würzburg, D-97080 Würzburg, Germany
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6
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Pulmonary immunity to viruses. Clin Sci (Lond) 2017; 131:1737-1762. [PMID: 28667071 DOI: 10.1042/cs20160259] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/31/2017] [Accepted: 04/06/2017] [Indexed: 12/28/2022]
Abstract
Mucosal surfaces, such as the respiratory epithelium, are directly exposed to the external environment and therefore, are highly susceptible to viral infection. As a result, the respiratory tract has evolved a variety of innate and adaptive immune defenses in order to prevent viral infection or promote the rapid destruction of infected cells and facilitate the clearance of the infecting virus. Successful adaptive immune responses often lead to a functional state of immune memory, in which memory lymphocytes and circulating antibodies entirely prevent or lessen the severity of subsequent infections with the same virus. This is also the goal of vaccination, although it is difficult to vaccinate in a way that mimics respiratory infection. Consequently, some vaccines lead to robust systemic immune responses, but relatively poor mucosal immune responses that protect the respiratory tract. In addition, adaptive immunity is not without its drawbacks, as overly robust inflammatory responses may lead to lung damage and impair gas exchange or exacerbate other conditions, such as asthma or chronic obstructive pulmonary disease (COPD). Thus, immune responses to respiratory viral infections must be strong enough to eliminate infection, but also have mechanisms to limit damage and promote tissue repair in order to maintain pulmonary homeostasis. Here, we will discuss the components of the adaptive immune system that defend the host against respiratory viral infections.
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Kuipers K, Diavatopoulos DA, van Opzeeland F, Simonetti E, van den Kieboom CH, Kerstholt M, Borczyk M, van IngenSchenau D, Brandsma ET, Netea MG, de Jonge MI. Antigen-Independent Restriction of Pneumococcal Density by Mucosal Adjuvant Cholera Toxin Subunit B. J Infect Dis 2016; 214:1588-1596. [PMID: 27112503 DOI: 10.1093/infdis/jiw160] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/08/2016] [Indexed: 11/14/2022] Open
Abstract
For many bacterial respiratory infections, development of (severe) disease is preceded by asymptomatic colonization of the upper airways. For Streptococcus pneumoniae, the transition to severe lower respiratory tract infection is associated with an increase in nasopharyngeal colonization density. Insight into how the mucosal immune system restricts colonization may provide new strategies to prevent clinical symptoms. Several studies have provided indirect evidence that the mucosal adjuvant cholera toxin subunit B (CTB) may confer nonspecific protection against respiratory infections. Here, we show that CTB reduces the pneumococcal load in the nasopharynx, which required activation of the caspase-1/11 inflammasome, mucosal T cells, and macrophages. Our findings suggest that CTB-dependent activation of the local innate response synergizes with noncognate T cells to restrict bacterial load. Our study not only provides insight into the immunological components required for containment and clearance of pneumococcal carriage, but also highlights an important yet often understudied aspect of adjuvants.
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Affiliation(s)
| | | | | | | | | | - Mariska Kerstholt
- Laboratory of Pediatric Infectious Diseases.,Department of Internal Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen
| | - Malgorzata Borczyk
- Laboratory of Pediatric Infectious Diseases.,Necki Institute of Experimental Biology, Warsaw, Poland
| | | | - Eelke T Brandsma
- Department of Pediatrics, University Medical Center Groningen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen
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Tougaard P, Zervides KA, Skov S, Hansen AK, Pedersen AE. Biologics beyond TNF-αinhibitors and the effect of targeting the homologues TL1A-DR3 pathway in chronic inflammatory disorders. Immunopharmacol Immunotoxicol 2016; 38:29-38. [DOI: 10.3109/08923973.2015.1130721] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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