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Pasupuleti D, Bagwe P, Ferguson A, Uddin MN, D'Souza MJ, Zughaier SM. Evaluating Nanoparticulate Vaccine Formulations for Effective Antigen Presentation and T-Cell Proliferation Using an In Vitro Overlay Assay. Vaccines (Basel) 2024; 12:1049. [PMID: 39340079 DOI: 10.3390/vaccines12091049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 09/06/2024] [Accepted: 09/06/2024] [Indexed: 09/30/2024] Open
Abstract
Inducing T lymphocyte (T-cell) activation and proliferation with specificity against a pathogen is crucial in vaccine formulation. Assessing vaccine candidates' ability to induce T-cell proliferation helps optimize formulation for its safety, immunogenicity, and efficacy. Our in-house vaccine candidates use microparticles (MPs) and nanoparticles (NPs) to enhance antigen stability and target delivery to antigen-presenting cells (APCs), providing improved immunogenicity. Typically, vaccine formulations are screened for safety and immunostimulatory effects using in vitro methods, but extensive animal testing is often required to assess immunogenic responses. We identified the need for a rapid, intermediate screening process to select promising candidates before advancing to expensive and time-consuming in vivo evaluations. In this study, an in vitro overlay assay system was demonstrated as an effective high-throughput preclinical testing method to evaluate the immunogenic properties of early-stage vaccine formulations. The overlay assay's effectiveness in testing particulate vaccine candidates for immunogenic responses has been evaluated by optimizing the carboxyfluorescein succinimidyl ester (CFSE) T-cell proliferation assay. DCs were overlaid with T-cells, allowing vaccine-stimulated DCs to present antigens to CFSE-stained T-cells. T-cell proliferation was quantified using flow cytometry on days 0, 1, 2, 4, and 6 upon successful antigen presentation. The assay was tested with nanoparticulate vaccine formulations targeting Neisseria gonorrhoeae (CDC F62, FA19, FA1090), measles, H1N1 flu prototype, canine coronavirus, and Zika, with adjuvants including Alhydrogel® (Alum) and AddaVax™. The assay revealed robust T-cell proliferation in the vaccine treatment groups, with variations between bacterial and viral vaccine candidates. A dose-dependent study indicated immune stimulation varied with antigen dose. These findings highlight the assay's potential to differentiate and quantify effective antigen presentation, providing valuable insights for developing and optimizing vaccine formulations.
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Affiliation(s)
- Dedeepya Pasupuleti
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery Research, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA
| | - Priyal Bagwe
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery Research, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA
| | - Amarae Ferguson
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery Research, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA
| | - Mohammad N Uddin
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery Research, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA
| | - Martin J D'Souza
- Vaccine Nanotechnology Laboratory, Center for Drug Delivery Research, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA
| | - Susu M Zughaier
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2731, Qatar
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Komori Y, Kobayashi S, Hatano K, Saito Y, Arai T, Kubo K. Elderly-onset inflammatory myopathy associated with Sjögren's syndrome following SARS-CoV-2 vaccination. Mod Rheumatol Case Rep 2024:rxae055. [PMID: 39302732 DOI: 10.1093/mrcr/rxae055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/31/2024] [Accepted: 09/03/2024] [Indexed: 09/22/2024]
Abstract
As vaccination against SARS-CoV-2 has progressed, various autoimmune diseases, including inflammatory myopathies, have been reported to develop after vaccination. Sjögren's syndrome (SS) sometimes presents as extra-glandular manifestations including inflammatory myopathy. In this report, we describe a case of inflammatory myopathy associated with SS that occurred in an atypically elderly patient after receiving the first dose of the SARS-CoV-2 mRNA vaccine (BNT162b2). The inflammatory myopathy was pathologically classified into non-specific myositis and characterised by predominant infiltration of the B cell lineage in this case. Combined treatment with glucocorticoid, intravenous immunoglobulin, and immunosuppressant resulted in an improvement in swallowing function and muscle strength. While we recognise the efficacy and safety of SARS-CoV-2 vaccines, we also emphasise the importance of recognising that individuals with an immunogenetic predisposition such as positivity of anti SS-A antibody may show disease activity including inflammatory myopathy following vaccination in SS, even at an atypically old age.
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Affiliation(s)
- Yuta Komori
- Department of Medicine and Rheumatology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Satomi Kobayashi
- Department of Medicine and Rheumatology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Keiko Hatano
- Department of Neurology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Yuko Saito
- Department of Neurology and Neuropathology (Brain Bank for Aging Research), Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Tomio Arai
- Department of Pathology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Kanae Kubo
- Department of Medicine and Rheumatology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
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Kavikondala S, Haeussler K, Wang X, Spellman A, Bausch-Jurken MT, Sharma P, Amiri M, Krivelyova A, Vats S, Nassim M, Kumar N, Van de Velde N. Immunogenicity of mRNA-1273 and BNT162b2 in Immunocompromised Patients: Systematic Review and Meta-analysis Using GRADE. Infect Dis Ther 2024; 13:1419-1438. [PMID: 38802704 PMCID: PMC11219657 DOI: 10.1007/s40121-024-00987-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 04/30/2024] [Indexed: 05/29/2024] Open
Abstract
INTRODUCTION Immunocompromised (IC) patients mount poor immune responses to vaccination. Higher-dose coronavirus disease 2019 (COVID-19) vaccines may offer increased immunogenicity. METHODS A pairwise meta-analysis of 98 studies reporting comparisons of mRNA-1273 (50 or 100 mcg/dose) and BNT162b2 (30 mcg/dose) in IC adults was performed. Outcomes were seroconversion, total and neutralizing antibody titers, and cellular immune responses. RESULTS mRNA-1273 was associated with a significantly higher seroconversion likelihood [relative risk, 1.11 (95% CI, 1.08, 1.14); P < 0.0001; I2 = 66.8%] and higher total antibody titers [relative increase, 50.45% (95% CI, 34.63%, 66.28%); P < 0.0001; I2 = 89.5%] versus BNT162b2. mRNA-1273 elicited higher but statistically nonsignificant relative increases in neutralizing antibody titers and cellular immune responses versus BNT162b2. CONCLUSION Higher-dose mRNA-1273 had increased immunogenicity versus BNT162b2 in IC patients.
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van Sleen Y, van der Geest KSM, Huckriede ALW, van Baarle D, Brouwer E. Effect of DMARDs on the immunogenicity of vaccines. Nat Rev Rheumatol 2023; 19:560-575. [PMID: 37438402 DOI: 10.1038/s41584-023-00992-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2023] [Indexed: 07/14/2023]
Abstract
Vaccines are important for protecting individuals at increased risk of severe infections, including patients undergoing DMARD therapy. However, DMARD therapy can also compromise the immune system, leading to impaired responses to vaccination. This Review focuses on the impact of DMARDs on influenza and SARS-CoV-2 vaccinations, as such vaccines have been investigated most thoroughly. Various data suggest that B cell depletion therapy, mycophenolate mofetil, cyclophosphamide, azathioprine and abatacept substantially reduce the immunogenicity of these vaccines. However, the effects of glucocorticoids, methotrexate, TNF inhibitors and JAK inhibitors on vaccine responses remain unclear and could depend on the dosage and type of vaccination. Vaccination is aimed at initiating robust humoral and cellular vaccine responses, which requires efficient interactions between antigen-presenting cells, T cells and B cells. DMARDs impair these cells in different ways and to different degrees, such as the prevention of antigen-presenting cell maturation, alteration of T cell differentiation and selective inhibition of B cell subsets, thus inhibiting processes that are necessary for an effective vaccine response. Innovative modified vaccination strategies are needed to improve vaccination responses in patients undergoing DMARD therapy and to protect these patients from the severe outcomes of infectious diseases.
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Affiliation(s)
- Yannick van Sleen
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, the Netherlands.
| | - Kornelis S M van der Geest
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, the Netherlands
| | - Anke L W Huckriede
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, Groningen, the Netherlands
| | - Debbie van Baarle
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, Groningen, the Netherlands
| | - Elisabeth Brouwer
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, the Netherlands.
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Xie Y, Liu Y, Liu Y. The Flare of Rheumatic Disease After SARS-CoV-2 Vaccination: A Review. Front Immunol 2022; 13:919979. [PMID: 35860285 PMCID: PMC9289284 DOI: 10.3389/fimmu.2022.919979] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/30/2022] [Indexed: 01/14/2023] Open
Abstract
As the coronavirus disease 2019 (COVID-19) pandemic continues worldwide, vaccination has been considered an effective measure to protect people from the COVID-19 and end the pandemic. However, for patients with rheumatic diseases (RD), concern for the induction of RD flare may combat the enthusiasm for vaccination. In general, current evidence doesn’t support the increased risk of disease flare after COVID-19 vaccination. However, the disease flare of RDs may be triggered by COVID-19 vaccinations, especially for patients with high disease activity. Most of these flares after vaccination are mild and need no treatment escalation. Considering the benefits and risks, RD patients are recommended to receive the COVID-19 vaccination but should be vaccinated when the RDs are in stable states.
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Affiliation(s)
- Yan Xie
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Liu
- Tsinghua Clinical Research Institute (TCRI), School of Medicine, Tsinghua University, Beijing, China
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Yi Liu,
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