1
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Jia Z, Liu R, Chang Q, Zhou X, De X, Yang Z, Li Y, Zhang C, Wang F, Ge J. Proof of concept in utilizing the peptidoglycan skeleton of pathogenic bacteria as antigen delivery platform for enhanced immune response. Int J Biol Macromol 2024; 264:130591. [PMID: 38437938 DOI: 10.1016/j.ijbiomac.2024.130591] [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: 09/03/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
Subunit vaccines are becoming increasingly important because of their safety and effectiveness. However, subunit vaccines often exhibit limited immunogenicity, necessitating the use of suitable adjuvants to elicit robust immune responses. In this study, we demonstrated for the first time that pathogenic bacteria can be prepared into a purified peptidoglycan skeleton without nucleic acids and proteins, presenting bacterium-like particles (pBLP). Our results showed that the peptidoglycan skeletons screened from four pathogens could activate Toll-like receptor1/2 receptors better than bacterium-like particles from Lactococcus lactis in macrophages. We observed that pBLP was safe in mouse models of multiple ages. Furthermore, pBLP improved the performance of two commercial vaccines in vivo. We confirmed that pBLP successfully loaded antigens onto the surface and proved to be an effective antigen delivery platform with enhanced antibody titers, antibody avidity, balanced subclass distribution, and mucosal immunity. These results indicate that the peptidoglycan skeleton of pathogenic bacteria represents a new strategy for developing subunit vaccine delivery systems.
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Affiliation(s)
- Zheng Jia
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China
| | - Runhang Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China; State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Harbin 150086, China
| | - Qingru Chang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China
| | - Xinyao Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China
| | - Xinqi De
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China
| | - Zaixing Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China
| | - Yifan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China
| | - Chuankun Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China
| | - Fang Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Harbin 150086, China.
| | - Junwei Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150036, China; Heilongjiang Provincial Key Laboratory of Zoonosis, Harbin 150036, China.
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2
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Chen C, Wang X, Zhang Z. Humoral and cellular immunity against diverse SARS-CoV-2 variants. J Genet Genomics 2023; 50:934-947. [PMID: 37865193 DOI: 10.1016/j.jgg.2023.10.003] [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: 06/29/2023] [Revised: 09/27/2023] [Accepted: 10/10/2023] [Indexed: 10/23/2023]
Abstract
Since the outbreak of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in late 2019, the virus has rapidly spread worldwide. This has led to an unprecedented global pandemic, marked by millions of COVID-19 cases and a significant number of fatalities. Over a relatively short period, several different vaccine platforms are developed and deployed for use globally to curb the pandemic. However, the genome of SARS-CoV-2 continuously undergoes mutation and/or recombination, resulting in the emergence of several variants of concern (VOC). These VOCs can elevate viral transmission and evade the neutralizing antibodies induced by vaccines, leading to reinfections. Understanding the impact of the SARS-CoV-2 genomic mutation on viral pathogenesis and immune escape is crucial for assessing the threat of new variants to public health. This review focuses on the emergence and pathogenesis of VOC, with particular emphasis on their evasion of neutralizing antibodies. Furthermore, the memory B cell, CD4+, and CD8+ T cell memory induced by different COVID-19 vaccines or infections are discussed, along with how these cells recognize VOC. This review summarizes the current knowledge on adaptive immunology regarding SARS-CoV-2 infection and vaccines. Such knowledge may also be applied to vaccine design for other pathogens.
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Affiliation(s)
- Changxu Chen
- Center for Infectious Disease Research, School of Life Science, Westlake University, Hangzhou, Zhejiang 310001, China
| | - Xin Wang
- Center for Infectious Disease Research, School of Life Science, Westlake University, Hangzhou, Zhejiang 310001, China
| | - Zeli Zhang
- Center for Infectious Disease Research, School of Life Science, Westlake University, Hangzhou, Zhejiang 310001, China.
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3
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Li D, Pavlovitch-Bedzyk AJ, Ebinger JE, Khan A, Hamideh M, Merchant A, Figueiredo JC, Cheng S, Davis MM, McGovern DPB, Melmed GY, Xu AM, Braun J. A Paratope-Enhanced Method to Determine Breadth and Depth TCR Clonal Metrics of the Private Human T-Cell Vaccine Response after SARS-CoV-2 Vaccination. Int J Mol Sci 2023; 24:14223. [PMID: 37762524 PMCID: PMC10531868 DOI: 10.3390/ijms241814223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/04/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Quantitative metrics for vaccine-induced T-cell responses are an important need for developing correlates of protection and their use in vaccine-based medical management and population health. Molecular TCR analysis is an appealing strategy but currently requires a targeted methodology involving complex integration of ex vivo data (antigen-specific functional T-cell cytokine responses and TCR molecular responses) that uncover only public antigen-specific metrics. Here, we describe an untargeted private TCR method that measures breadth and depth metrics of the T-cell response to vaccine challenge using a simple pre- and post-vaccine subject sampling, TCR immunoseq analysis, and a bioinformatic approach using self-organizing maps and GLIPH2. Among 515 subjects undergoing SARS-CoV-2 mRNA vaccination, we found that breadth and depth metrics were moderately correlated between the targeted public TCR response and untargeted private TCR response methods. The untargeted private TCR method was sufficiently sensitive to distinguish subgroups of potential clinical significance also observed using public TCR methods (the reduced T-cell vaccine response with age and the paradoxically elevated T-cell vaccine response of patients on anti-TNF immunotherapy). These observations suggest the promise of this untargeted private TCR method to produce T-cell vaccine-response metrics in an antigen-agnostic and individual-autonomous context.
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Affiliation(s)
- Dalin Li
- Inflammatory Bowel Disease Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (D.L.); (A.K.); (M.H.); (D.P.B.M.); (G.Y.M.)
| | - Ana Jimena Pavlovitch-Bedzyk
- Computational and Systems Immunology Program, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.J.P.-B.); (M.M.D.)
| | - Joseph E. Ebinger
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (J.E.E.); (S.C.)
| | - Abdul Khan
- Inflammatory Bowel Disease Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (D.L.); (A.K.); (M.H.); (D.P.B.M.); (G.Y.M.)
| | - Mohamed Hamideh
- Inflammatory Bowel Disease Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (D.L.); (A.K.); (M.H.); (D.P.B.M.); (G.Y.M.)
| | - Akil Merchant
- Cedars-Sinai Cancer and Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.M.); (J.C.F.); (A.M.X.)
| | - Jane C. Figueiredo
- Cedars-Sinai Cancer and Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.M.); (J.C.F.); (A.M.X.)
| | - Susan Cheng
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (J.E.E.); (S.C.)
| | - Mark M. Davis
- Computational and Systems Immunology Program, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.J.P.-B.); (M.M.D.)
- Department of Microbiology and Immunology, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Dermot P. B. McGovern
- Inflammatory Bowel Disease Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (D.L.); (A.K.); (M.H.); (D.P.B.M.); (G.Y.M.)
| | - Gil Y. Melmed
- Inflammatory Bowel Disease Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (D.L.); (A.K.); (M.H.); (D.P.B.M.); (G.Y.M.)
| | - Alexander M. Xu
- Cedars-Sinai Cancer and Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.M.); (J.C.F.); (A.M.X.)
| | - Jonathan Braun
- Inflammatory Bowel Disease Institute, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (D.L.); (A.K.); (M.H.); (D.P.B.M.); (G.Y.M.)
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4
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Law JC, Watts TH. Considerations for Choosing T Cell Assays during a Pandemic. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:169-174. [PMID: 37399079 DOI: 10.4049/jimmunol.2300129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/15/2023] [Indexed: 07/05/2023]
Abstract
The appropriate immunosurveillance tools are foundational for the creation of therapeutics, vaccines, and containment strategies when faced with outbreaks of novel pathogens. During the COVID-19 pandemic, there was an urgent need to rapidly assess immune memory following infection or vaccination. Although there have been attempts to standardize cellular assays more broadly, methods for measuring cell-mediated immunity remain variable across studies. Commonly used methods include ELISPOT, intracellular cytokine staining, activation-induced markers, cytokine secretion assays, and peptide-MHC tetramer staining. Although each assay offers unique and complementary information on the T cell response, there are challenges associated with standardizing these assays. The choice of assay can be driven by sample size, the need for high throughput, and the information sought. A combination of approaches may be optimal. This review describes the benefits and limitations of commonly used methods for assessing T cell immunity across SARS-CoV-2 studies.
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Affiliation(s)
- Jaclyn C Law
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Tania H Watts
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
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5
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Ungar B, Hartzell S, Lozano‐Ojalvo D, Ghalili S, Bose S, Golant AK, Tan K, Estrada YD, Singer GK, Pavel AB, Cravedi P, Guttman‐Yassky E. The impact of dupilumab treatment on SARS-CoV-2 T cell responses in atopic dermatitis patients. Allergy 2023; 78:571-574. [PMID: 36181718 PMCID: PMC9537998 DOI: 10.1111/all.15540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 09/19/2022] [Accepted: 09/25/2022] [Indexed: 02/01/2023]
Affiliation(s)
- Benjamin Ungar
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
| | - Susan Hartzell
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
- Precision Immunology Institute, Icahn School of Medicine at Mount SinaiNew YorkNYUnited States
| | - Daniel Lozano‐Ojalvo
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
- Precision Immunology Institute, Icahn School of Medicine at Mount SinaiNew YorkNYUnited States
| | - Sabrina Ghalili
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
| | - Swaroop Bose
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
| | - Alexandra K. Golant
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
| | - Kathryn Tan
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
| | - Yeriel D. Estrada
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
| | - Giselle K. Singer
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
| | - Ana B. Pavel
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
- Department of Biomedical Engineeringthe University of Mississippi, University
| | - Paolo Cravedi
- Precision Immunology Institute, Icahn School of Medicine at Mount SinaiNew YorkNYUnited States
| | - Emma Guttman‐Yassky
- Present address:
Department of Dermatology and Laboratory of Inflammatory Skin DiseasesIcahn School of Medicine at Mount SinaiNew York
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6
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Yau K, Enilama O, Levin A, Romney MG, Singer J, Blake P, Perl J, Leis JA, Kozak R, Tsui H, Bolotin S, Tran V, Chan CT, Tam P, Dhruve M, Kandel C, Estrada-Codecido J, Brown T, Siwakoti A, Abe KT, Hu Q, Colwill K, Gingras AC, Oliver MJ, Hladunewich MA. Determining the Longitudinal Serologic Response to COVID-19 Vaccination in the Chronic Kidney Disease Population: A Clinical Research Protocol. Can J Kidney Health Dis 2023; 10:20543581231160511. [PMID: 36950028 PMCID: PMC10028441 DOI: 10.1177/20543581231160511] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 01/13/2023] [Indexed: 03/22/2023] Open
Abstract
Background People living with chronic kidney disease (CKD) have been disproportionately affected by the coronavirus disease 2019 (COVID-19) pandemic, including higher rates of infection, hospitalization, and death. Data on responsiveness to COVID-19 vaccination strategies and immunogenicity are limited, yet required to inform vaccination strategies in this at-risk population. Objective The objective of this study is to characterize the longitudinal serologic response to COVID-19 vaccination. Design This is a prospective observational cohort study. Setting Participating outpatient kidney programs within Ontario and British Columbia. Patients Up to 2500 participants with CKD G3b-5D receiving COVID-19 vaccination, including participants receiving dialysis and kidney transplant recipients (CKD G1T-5T). Measurements The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) IgG antibodies (anti-spike, anti-receptor binding domain, anti-nucleocapsid) will be detected by ELISA (enzyme-linked immunosorbent assay) from serum or dried blood spot testing. In a subset of participants, neutralizing antibodies against novel variants of concern will be evaluated. Peripheral blood mononuclear cells will be collected for exploratory immune profiling of SARS-CoV-2 specific cellular immunity. Methods Participants will be recruited prior to or following any COVID-19 vaccine dose and have blood sampled for serological testing at multiple timepoints: 1, 3, 6, 9, and 12 months post vaccination. When possible, samples will be collected prior to a dose or booster. Participants will remain in the study for at least 1 year following their last COVID-19 vaccine dose. Strengths and limitations The adaptive design of this study allows for planned modification based on emerging evidence or rapid changes in public health policy surrounding vaccination. Limitations include incomplete earlier timepoints for blood collection due to rapid vaccination of the population. Conclusions This large multicenter serologic study of participants living with kidney disease will generate data on the kinetics of SARS-CoV-2 immune response to vaccination across the spectrum of CKD, providing insights into the amplitude and duration of immunity conferred by COVID-19 vaccination and allowing for characterization of factors associated with immune response. The results of this study may be used to inform immunization guidelines and public health recommendations for the 4 million Canadians living with CKD.
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Affiliation(s)
- Kevin Yau
- Division of Nephrology, Department of
Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Division of Nephrology, Department of
Medicine, Unity Health Toronto, ON, Canada
| | - Omosomi Enilama
- Experimental Medicine, Department of
Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Adeera Levin
- Division of Nephrology, Department of
Medicine, The University of British Columbia, Vancouver, BC, Canada
- British Columbia Renal, Vancouver, BC,
Canada
| | - Marc G. Romney
- Department of Pathology and Laboratory
Medicine, St. Paul’s Hospital, Providence Health Care, Vancouver, BC, Canada
| | - Joel Singer
- School of Population and Public Health,
The University of British Columbia, Vancouver, BC, Canada
| | - Peter Blake
- Ontario Renal Network, Toronto, ON,
Canada
- London Health Sciences Centre, London,
ON, Canada
| | - Jeffrey Perl
- Division of Nephrology, Department of
Medicine, Unity Health Toronto, ON, Canada
| | - Jerome A. Leis
- Division of Infectious Diseases,
Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Robert Kozak
- Department of Laboratory Medicine
& Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Hubert Tsui
- Department of Laboratory Medicine
& Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Shelly Bolotin
- Public Health Ontario, Toronto, ON,
Canada
- Dalla Lana School of Public Health,
University of Toronto, Toronto, ON, Canada
| | - Vanessa Tran
- Public Health Ontario, Toronto, ON,
Canada
- Dalla Lana School of Public Health,
University of Toronto, Toronto, ON, Canada
| | - Christopher T. Chan
- Division of Nephrology, Department of
Medicine, University Health Network, Toronto, ON, Canada
| | - Paul Tam
- Division of Nephrology, Scarborough
Health Network, Toronto, ON, Canada
| | - Miten Dhruve
- Division of Nephrology, Michael
Garron Hospital, Toronto, ON, Canada
| | - Christopher Kandel
- Division of Infectious Diseases,
Michael Garron Hospital, Toronto, ON, Canada
| | - Jose Estrada-Codecido
- Division of Nephrology, Department of
Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Tyler Brown
- Division of Nephrology, Department of
Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Aswani Siwakoti
- Division of Nephrology, Department of
Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Kento T. Abe
- Department of Molecular Genetics,
University of Toronto, Toronto, ON, Canada
- Lunenfeld-Tanenbaum Research
Institute, Mount Sinai Hospital, Sinai Health, Toronto, ON, Canada
| | - Queenie Hu
- Lunenfeld-Tanenbaum Research
Institute, Mount Sinai Hospital, Sinai Health, Toronto, ON, Canada
| | - Karen Colwill
- Lunenfeld-Tanenbaum Research
Institute, Mount Sinai Hospital, Sinai Health, Toronto, ON, Canada
| | - Anne-Claude Gingras
- Department of Molecular Genetics,
University of Toronto, Toronto, ON, Canada
- Lunenfeld-Tanenbaum Research
Institute, Mount Sinai Hospital, Sinai Health, Toronto, ON, Canada
| | - Matthew J. Oliver
- Division of Nephrology, Department of
Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Ontario Renal Network, Toronto, ON,
Canada
| | - Michelle A. Hladunewich
- Division of Nephrology, Department of
Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Ontario Renal Network, Toronto, ON,
Canada
- Michelle A. Hladunewich, Division of
Nephrology, Department of Medicine, Sunnybrook Health Sciences Centre, 2075
Bayview Avenue, D4 Room 474, Toronto, ON M4N 3M5, Canada.
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7
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Liu ZH, Deng ZF, Lu Y, Fang WH, He F. A modular and self-adjuvanted multivalent vaccine platform based on porcine circovirus virus-like nanoparticles. J Nanobiotechnology 2022; 20:493. [PMID: 36424615 PMCID: PMC9685936 DOI: 10.1186/s12951-022-01710-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Virus-like particles (VLPs) are supramolecular structures composed of multiple protein subunits and resemble natural virus particles in structure and size, making them highly immunogenic materials for the development of next-generation subunit vaccines. The orderly and repetitive display of antigenic epitopes on particle surface allows efficient recognition and cross-link by B cell receptors (BCRs), thereby inducing higher levels of neutralizing antibodies and cellular immune responses than regular subunit vaccines. Here, we present a novel multiple antigen delivery system using SpyCatcher/Spytag strategy and self-assembled VLPs formed by porcine circovirus type 2 (PCV2) Cap, a widely used swine vaccine in solo. RESULTS Cap-SC, recombinant Cap with a truncated SpyCatcher polypeptide at its C-terminal, self-assembled into 26-nm VLPs. Based on isopeptide bonds formed between SpyCatcher and SpyTag, classical swine fever virus (CSFV) E2, the antigen of interest, was linked to SpyTag and readily surface-displayed on SpyCatcher decorated Cap-SC via in vitro covalent conjugation. E2-conjugated Cap VLPs (Cap-E2 NPs) could be preferentially captured by antigen presenting cells (APCs) and effectively stimulate APC maturation and cytokine production. In vivo studies confirmed that Cap-E2 NPs elicited an enhanced E2 specific IgG response, which was significantly higher than soluble E2, or the admixture of Cap VLPs and E2. Moreover, E2 displayed on the surface did not mask the immunodominant epitopes of Cap-SC VLPs, and Cap-E2 NPs induced Cap-specific antibody levels and neutralizing antibody levels comparable to native Cap VLPs. CONCLUSION These results demonstrate that this modularly assembled Cap-E2 NPs retains the immune potential of Cap VLP backbone, while the surface-displayed antigen significantly elevated E2-induced immune potency. This immune strategy provides distinctly improved efficacy than conventional vaccine combination. It can be further applied to the development of dual or multiple nanoparticle vaccines to prevent co-infection of PCV2 and other swine pathogens.
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Affiliation(s)
- Ze-Hui Liu
- grid.13402.340000 0004 1759 700XInstitute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, 866 Yuhangtang road, 310058 Hangzhou, China
| | - Zhuo-Fan Deng
- grid.13402.340000 0004 1759 700XInstitute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, 866 Yuhangtang road, 310058 Hangzhou, China
| | - Ying Lu
- grid.13402.340000 0004 1759 700XInstitute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, 866 Yuhangtang road, 310058 Hangzhou, China
| | - Wei-Huan Fang
- grid.13402.340000 0004 1759 700XInstitute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, 866 Yuhangtang road, 310058 Hangzhou, China ,grid.13402.340000 0004 1759 700XLaboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, 310058 Hangzhou, China
| | - Fang He
- grid.13402.340000 0004 1759 700XInstitute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, 866 Yuhangtang road, 310058 Hangzhou, China ,grid.13402.340000 0004 1759 700XLaboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, 310058 Hangzhou, China
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8
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Li D, Calderone R, Nsouli TM, Reznikov E, Bellanti JA. Salivary and serum IgA and IgG responses to SARS-CoV-2-spike protein following SARS-CoV-2 infection and after immunization with COVID-19 vaccines. Allergy Asthma Proc 2022; 43:419-430. [PMID: 36065108 PMCID: PMC9465644 DOI: 10.2500/aap.2022.43.220045] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Secretory immunoglobulin A (sIgA) plays an important role in antiviral protective immunity. Although salivary testing has been used for many viral infections, including severe acute respiratory syndrome (SARS) and Middle East Respiratory Syndrome (MERS), its use has not yet been well established with the SARS coronavirus 2 (SARS-CoV-2). Quantification of salivary IgA and IgG antibodies can elucidate mucosal and systemic immune responses after natural infection or vaccination. Here, we report the development and validation of a rapid enzyme-linked immunosorbent assay (ELISA) for anti-SARS-CoV-2 salivary IgA and serum IgG antibodies, and present quantitative results for immunized subjects both prior to or following COVID-19 infections. Objective: Total and serum SARS-CoV-2 spike-specific IgG responses were compared with salivary spike-specific IgA and IgG responses in samples obtained from patients recently infected with SARS-CoV-2 and from subjects recently immunized with COVID-19 vaccines. Methods: A total of 52 paired saliva and serum samples were collected from 26 study participants: 7 subjects after COVID-19 infection and 19 subjects who were uninfected. The ELISA results from these samples were compared with five prepandemic control serum samples. Total IgG and SARS-CoV-2 spike-specific IgG in the serum samples from the subjects who were infected and vaccinated were also measured in a commercial laboratory with an enzyme immunoassay. Results: A wide variation in antibody responses was seen in salivary and serum samples measured by both methods. Three groups of serum total and IgG spike-specific SARS-CoV-2 antibody responses were observed: (1) low, (2) intermediate, and (3) high antibody responders. A correlational analysis of salivary IgA (sIgA) responses with serum IgG concentrations showed a statistical correlation in the low and intermediate antibody responder groups but not in the high group (which we believe was a result of saturation). Conclusion: These preliminary findings suggest measuring salivary and serum IgG and IgA merit further investigation as markers of current or recent SARS-CoV-2 infections.
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Affiliation(s)
- Dongmei Li
- From the Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, D.C
| | - Richard Calderone
- From the Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, D.C
| | - Talal M. Nsouli
- Department of Pediatrics, Georgetown University Medical Center, Washington, D.C.; and
| | - Elizabeth Reznikov
- Department of Pediatrics, Georgetown University Medical Center, Washington, D.C.; and ,Department of Medicine, Georgetown University Medical Center, Washington, D.C
| | - Joseph A. Bellanti
- From the Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, D.C.; ,Department of Pediatrics, Georgetown University Medical Center, Washington, D.C.; and
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9
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Sette A, Crotty S. Immunological memory to SARS-CoV-2 infection and COVID-19 vaccines. Immunol Rev 2022; 310:27-46. [PMID: 35733376 PMCID: PMC9349657 DOI: 10.1111/imr.13089] [Citation(s) in RCA: 129] [Impact Index Per Article: 64.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 05/04/2022] [Indexed: 12/12/2022]
Abstract
Immunological memory is the basis of protective immunity provided by vaccines and previous infections. Immunological memory can develop from multiple branches of the adaptive immune system, including CD4 T cells, CD8 T cells, B cells, and long-lasting antibody responses. Extraordinary progress has been made in understanding memory to SARS-CoV-2 infection and COVID-19 vaccines, addressing development; quantitative and qualitative features of different cellular and anatomical compartments; and durability of each cellular component and antibodies. Given the sophistication of the measurements; the size of the human studies; the use of longitudinal samples and cross-sectional studies; and head-to-head comparisons between infection and vaccines or between multiple vaccines, the understanding of immune memory for 1 year to SARS-CoV-2 infection and vaccines already supersedes that of any other acute infectious disease. This knowledge may help inform public policies regarding COVID-19 and COVID-19 vaccines, as well as the scientific development of future vaccines against SARS-CoV-2 and other diseases.
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Affiliation(s)
- Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA
| | - Shane Crotty
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA
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10
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Karsten H, Cords L, Westphal T, Knapp M, Brehm TT, Hermanussen L, Omansen TF, Schmiedel S, Woost R, Ditt V, Peine S, Lütgehetmann M, Huber S, Ackermann C, Wittner M, Addo MM, Sette A, Sidney J, Schulze Zur Wiesch J. High-resolution analysis of individual spike peptide-specific CD4 + T-cell responses in vaccine recipients and COVID-19 patients. Clin Transl Immunology 2022; 11:e1410. [PMID: 35957961 PMCID: PMC9363231 DOI: 10.1002/cti2.1410] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/06/2022] [Accepted: 07/20/2022] [Indexed: 12/03/2022] Open
Abstract
Objectives Potential differences in the breadth, distribution and magnitude of CD4+ T‐cell responses directed against the SARS‐CoV‐2 spike glycoprotein between vaccinees, COVID‐19 patients and subjects who experienced both ways of immunisation have not been comprehensively compared on a peptide level. Methods Following virus‐specific in vitro cultivation, we determined the T‐cell responses directed against 253 individual overlapping 15‐mer peptides covering the entire SARS‐CoV‐2 spike glycoprotein using IFN‐γ ELISpot and intracellular cytokine staining. In vitro HLA binding was determined for selected peptides. Results We mapped 955 single peptide‐specific CD4+ T‐cell responses in a cohort of COVID‐19 patients (n = 8), uninfected vaccinees (n = 16) and individuals who experienced both infection and vaccination (n = 11). Patients and vaccinees (two‐time and three‐time vaccinees alike) had a comparable number of CD4+ T‐cell responses (median 26 vs. 29, P = 0.7289). Most of these specificities were conserved in B.1.1.529 and the BA.4 and BA.5 sublineages. The highest magnitude of these in vitro IFN‐γ CD4+ T‐cell responses was observed in COVID‐19 patients (median 0.35%), and three‐time vaccinees showed a higher magnitude than two‐time vaccinees (median 0.091% vs. 0.175%, P < 0.0001). Twelve peptide specificities were each detected in at least 40% of subjects. In vitro HLA binding showed promiscuous presentation by DRB1 molecules for several peptides. Conclusion Both SARS‐CoV‐2 infection and vaccination prime broadly directed T‐cell responses directed against the SARS‐CoV‐2 spike glycoprotein. This comprehensive high‐resolution analysis of spike peptide specificities will be a useful resource for further investigation of spike‐specific T‐cell responses.
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Affiliation(s)
- Hendrik Karsten
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Leon Cords
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Tim Westphal
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany.,German Center for Infection Research (DZIF) Partner Site Hamburg-Lübeck-Borstel-Riems Hamburg Germany
| | - Maximilian Knapp
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Thomas Theo Brehm
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany.,German Center for Infection Research (DZIF) Partner Site Hamburg-Lübeck-Borstel-Riems Hamburg Germany
| | - Lennart Hermanussen
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Till Frederik Omansen
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany.,Department of Tropical Medicine Bernhard Nocht Institute for Tropical Medicine Hamburg Germany
| | - Stefan Schmiedel
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Robin Woost
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Vanessa Ditt
- Institute of Transfusion Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Sven Peine
- Institute of Transfusion Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Marc Lütgehetmann
- German Center for Infection Research (DZIF) Partner Site Hamburg-Lübeck-Borstel-Riems Hamburg Germany.,Institute of Medical Microbiology, Virology and Hygiene University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Samuel Huber
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Christin Ackermann
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany
| | - Melanie Wittner
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany.,German Center for Infection Research (DZIF) Partner Site Hamburg-Lübeck-Borstel-Riems Hamburg Germany
| | - Marylyn Martina Addo
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany.,German Center for Infection Research (DZIF) Partner Site Hamburg-Lübeck-Borstel-Riems Hamburg Germany.,Department of Tropical Medicine Bernhard Nocht Institute for Tropical Medicine Hamburg Germany
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research La Jolla Institute for Immunology (LJI) La Jolla CA USA
| | - John Sidney
- Center for Infectious Disease and Vaccine Research La Jolla Institute for Immunology (LJI) La Jolla CA USA
| | - Julian Schulze Zur Wiesch
- Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg-Eppendorf Hamburg Germany.,German Center for Infection Research (DZIF) Partner Site Hamburg-Lübeck-Borstel-Riems Hamburg Germany
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11
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Dayam RM, Law JC, Goetgebuer RL, Chao GY, Abe KT, Sutton M, Finkelstein N, Stempak JM, Pereira D, Croitoru D, Acheampong L, Rizwan S, Rymaszewski K, Milgrom R, Ganatra D, Batista NV, Girard M, Lau I, Law R, Cheung MW, Rathod B, Kitaygorodsky J, Samson R, Hu Q, Hardy WR, Haroon N, Inman RD, Piguet V, Chandran V, Silverberg MS, Gingras AC, Watts TH. Accelerated waning of immunity to SARS-CoV-2 mRNA vaccines in patients with immune-mediated inflammatory diseases. JCI Insight 2022; 7:e159721. [PMID: 35471956 PMCID: PMC9220925 DOI: 10.1172/jci.insight.159721] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUNDLimited information is available on the impact of immunosuppressants on COVID-19 vaccination in patients with immune-mediated inflammatory diseases (IMID).METHODSThis observational cohort study examined the immunogenicity of SARS-CoV-2 mRNA vaccines in adult patients with inflammatory bowel disease, rheumatoid arthritis, ankylosing spondylitis, or psoriatic disease, with or without maintenance immunosuppressive therapies. Ab and T cell responses to SARS-CoV-2, including neutralization against SARS-CoV-2 variants, were determined before and after 1 and 2 vaccine doses.RESULTSWe prospectively followed 150 subjects, 26 healthy controls, 9 patients with IMID on no treatment, 44 on anti-TNF, 16 on anti-TNF with methotrexate/azathioprine (MTX/AZA), 10 on anti-IL-23, 28 on anti-IL-12/23, 9 on anti-IL-17, and 8 on MTX/AZA. Ab and T cell responses to SARS-CoV-2 were detected in all participants, increasing from dose 1 to dose 2 and declining 3 months later, with greater attrition in patients with IMID compared with healthy controls. Ab levels and neutralization efficacy against variants of concern were substantially lower in anti-TNF-treated patients than in healthy controls and were undetectable against Omicron by 3 months after dose 2.CONCLUSIONSOur findings support the need for a third dose of the mRNA vaccine and for continued monitoring of immunity in these patient groups.FUNDINGFunded by a donation from Juan and Stefania Speck and by Canadian Institutes of Health (CIHR)/COVID-Immunity Task Force (CITF) grants VR-1 172711 and VS1-175545 (to THW and ACG), CIHR FDN-143250 (to THW), GA2-177716 (to VC, ACG, and THW), and GA1-177703 (to ACG) and the CIHR rapid response network to SARS-CoV-2 variants, CoVaRR-Net (to ACG).
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Affiliation(s)
- Roya M. Dayam
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
| | - Jaclyn C. Law
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Rogier L. Goetgebuer
- Zane Cohen Centre for Digestive Diseases, Division of Gastroenterology, Mount Sinai Hospital, Sinai Health
| | - Gary Y.C. Chao
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Kento T. Abe
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
- Department of Molecular Genetics
| | - Mitchell Sutton
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Division of Rheumatology, Department of Medicine, and
| | - Naomi Finkelstein
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Division of Rheumatology, Department of Medicine, and
| | - Joanne M. Stempak
- Zane Cohen Centre for Digestive Diseases, Division of Gastroenterology, Mount Sinai Hospital, Sinai Health
| | - Daniel Pereira
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Division of Rheumatology, Department of Medicine, and
| | - David Croitoru
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Lily Acheampong
- Division of Dermatology, Department of Medicine, Women’s College Hospital, Toronto, Ontario, Canada
| | - Saima Rizwan
- Zane Cohen Centre for Digestive Diseases, Division of Gastroenterology, Mount Sinai Hospital, Sinai Health
| | - Klaudia Rymaszewski
- Zane Cohen Centre for Digestive Diseases, Division of Gastroenterology, Mount Sinai Hospital, Sinai Health
| | - Raquel Milgrom
- Zane Cohen Centre for Digestive Diseases, Division of Gastroenterology, Mount Sinai Hospital, Sinai Health
| | - Darshini Ganatra
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Division of Rheumatology, Department of Medicine, and
| | | | - Melanie Girard
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Irene Lau
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Ryan Law
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Michelle W. Cheung
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Bhavisha Rathod
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
| | - Julia Kitaygorodsky
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
- Department of Molecular Genetics
| | - Reuben Samson
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
- Department of Molecular Genetics
| | - Queenie Hu
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
| | - W. Rod Hardy
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
| | - Nigil Haroon
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Division of Rheumatology, Department of Medicine, and
| | - Robert D. Inman
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Division of Rheumatology, Department of Medicine, and
| | - Vincent Piguet
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Dermatology, Department of Medicine, Women’s College Hospital, Toronto, Ontario, Canada
| | - Vinod Chandran
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Division of Rheumatology, Department of Medicine, and
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Mark S. Silverberg
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
- Zane Cohen Centre for Digestive Diseases, Division of Gastroenterology, Mount Sinai Hospital, Sinai Health
| | - Anne-Claude Gingras
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
- Department of Molecular Genetics
| | - Tania H. Watts
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
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