1
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Ou BS, Baillet J, Filsinger Interrante MV, Adamska JZ, Zhou X, Saouaf OM, Yan J, Klich JH, Jons CK, Meany EL, Valdez AS, Carter L, Pulendran B, King NP, Appel EA. Saponin nanoparticle adjuvants incorporating Toll-like receptor agonists drive distinct immune signatures and potent vaccine responses. SCIENCE ADVANCES 2024; 10:eadn7187. [PMID: 39110802 PMCID: PMC11305391 DOI: 10.1126/sciadv.adn7187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 06/28/2024] [Indexed: 08/10/2024]
Abstract
Over the past few decades, the development of potent and safe immune-activating adjuvant technologies has become the heart of intensive research in the constant fight against highly mutative and immune evasive viruses such as influenza, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and human immunodeficiency virus (HIV). Herein, we developed a highly modular saponin-based nanoparticle platform incorporating Toll-like receptor agonists (TLRas) including TLR1/2a, TLR4a, and TLR7/8a adjuvants and their mixtures. These various TLRa-saponin nanoparticle adjuvant constructs induce unique acute cytokine and immune-signaling profiles, leading to specific T helper responses that could be of interest depending on the target disease for prevention. In a murine vaccine study, the adjuvants greatly improved the potency, durability, breadth, and neutralization of both COVID-19 and HIV vaccine candidates, suggesting the potential broad application of these adjuvant constructs to a range of different antigens. Overall, this work demonstrates a modular TLRa-SNP adjuvant platform that could improve the design of vaccines and affect modern vaccine development.
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Affiliation(s)
- Ben S. Ou
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Julie Baillet
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Maria V. Filsinger Interrante
- Stanford ChEM-H, Stanford University, Stanford, CA 94305, USA
- Stanford Biophysics Program, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
- Stanford Medical Scientist Training Program, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Julia Z. Adamska
- Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Xueting Zhou
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Olivia M. Saouaf
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Jerry Yan
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - John H. Klich
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Carolyn K. Jons
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Emily L. Meany
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Adian S. Valdez
- Department of Biochemistry, University of Washington, Seattle, WA 98109, USA
- Institute for Protein Design, University of Washington, Seattle, WA 98195, USA
| | - Lauren Carter
- Department of Biochemistry, University of Washington, Seattle, WA 98109, USA
- Institute for Protein Design, University of Washington, Seattle, WA 98195, USA
| | - Bali Pulendran
- Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Pathology, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Neil P. King
- Department of Biochemistry, University of Washington, Seattle, WA 98109, USA
- Institute for Protein Design, University of Washington, Seattle, WA 98195, USA
| | - Eric A. Appel
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
- Stanford ChEM-H, Stanford University, Stanford, CA 94305, USA
- Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Pediatrics-Endocrinology, Stanford University School of Medicine, Stanford University, Stanford, CA 94305, USA
- Woods Institute for the Environment, Stanford University, Stanford CA 94305, USA
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2
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Zimna M, Brzuska G, Salát J, Růžek D, Krol E. Influence of adjuvant type and route of administration on the immunogenicity of Leishmania-derived tick-borne encephalitis virus-like particles - A recombinant vaccine candidate. Antiviral Res 2024; 228:105941. [PMID: 38901737 DOI: 10.1016/j.antiviral.2024.105941] [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: 01/30/2024] [Revised: 05/16/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024]
Abstract
Tick-borne encephalitis virus (TBEV) is a tick-borne flavivirus that induces severe central nervous system disorders. It has recently raised concerns due to an expanding geographical range and increasing infection rates. Existing vaccines, though effective, face low coverage rates in numerous TBEV endemic regions. Our previous work demonstrated the immunogenicity and full protection afforded by a TBEV vaccine based on virus-like particles (VLPs) produced in Leishmania tarentolae cells in immunization studies in a mouse model. In the present study, we explored the impact of adjuvants (AddaS03™, Alhydrogel®+MPLA) and administration routes (subcutaneous, intramuscular) on the immune response. Adjuvanted groups exhibited significantly enhanced antibody responses, higher avidity, and more balanced Th1/Th2 response. IFN-γ responses depended on the adjuvant type, while antibody levels were influenced by both adjuvant and administration routes. The combination of Leishmania-derived TBEV VLPs with Alhydrogel® and MPLA via intramuscular administration emerged as a highly promising prophylactic vaccine candidate, eliciting a robust, balanced immune response with substantial neutralization potential.
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MESH Headings
- Animals
- Encephalitis Viruses, Tick-Borne/immunology
- Mice
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- Adjuvants, Immunologic/administration & dosage
- Vaccines, Synthetic/immunology
- Vaccines, Synthetic/administration & dosage
- Encephalitis, Tick-Borne/prevention & control
- Encephalitis, Tick-Borne/immunology
- Viral Vaccines/immunology
- Viral Vaccines/administration & dosage
- Vaccines, Virus-Like Particle/immunology
- Vaccines, Virus-Like Particle/administration & dosage
- Leishmania/immunology
- Female
- Adjuvants, Vaccine/administration & dosage
- Antibodies, Neutralizing/blood
- Antibodies, Neutralizing/immunology
- Immunogenicity, Vaccine
- Injections, Intramuscular
- Mice, Inbred BALB C
- Interferon-gamma/immunology
- Th1 Cells/immunology
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Affiliation(s)
- Marta Zimna
- Department of Recombinant Vaccines, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland.
| | - Gabriela Brzuska
- Department of Recombinant Vaccines, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland.
| | - Jiří Salát
- Laboratory of Emerging Viral Infections, Veterinary Research Institute, Hudcova 70, CZ-62100, Brno, Czech Republic; Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branisovska 31, CZ-37005, Ceske Budejovice, Czech Republic.
| | - Daniel Růžek
- Laboratory of Emerging Viral Infections, Veterinary Research Institute, Hudcova 70, CZ-62100, Brno, Czech Republic; Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branisovska 31, CZ-37005, Ceske Budejovice, Czech Republic; Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 735/5, CZ-62500, Brno, Czech Republic.
| | - Ewelina Krol
- Department of Recombinant Vaccines, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland.
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3
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Ou BS, Baillet J, Filsinger Interrante MV, Adamska JZ, Zhou X, Saouaf OM, Yan J, Klich JH, Jons CK, Meany EL, Valdez AS, Carter L, Pulendran B, King NP, Appel EA. Saponin Nanoparticle Adjuvants Incorporating Toll-Like Receptor Agonists Drive Distinct Immune Signatures and Potent Vaccine Responses. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.07.16.549249. [PMID: 37577608 PMCID: PMC10418080 DOI: 10.1101/2023.07.16.549249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Over the past few decades, the development of potent and safe immune-activating adjuvant technologies has become the heart of intensive research in the constant fight against highly mutative and immune evasive viruses such as influenza, SARS-CoV-2, and HIV. Herein, we developed a highly modular saponin-based nanoparticle platform incorporating toll-like receptor agonists (TLRas) including TLR1/2a, TLR4a, TLR7/8a adjuvants and their mixtures. These various TLRa-SNP adjuvant constructs induce unique acute cytokine and immune-signaling profiles, leading to specific Th-responses that could be of interest depending on the target disease for prevention. In a murine vaccine study, the adjuvants greatly improved the potency, durability, breadth, and neutralization of both COVID-19 and HIV vaccine candidates, suggesting the potential broad application of these adjuvant constructs to a range of different antigens. Overall, this work demonstrates a modular TLRa-SNP adjuvant platform which could improve the design of vaccines for and dramatically impact modern vaccine development. Teaser Saponin-TLRa nanoadjuvants provide distinct immune signatures and drive potent, broad, durable COVID-19 and HIV vaccine responses.
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4
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Agustiningsih D, Wibawa T. Demystifying roles of exercise in immune response regulation against acute respiratory infections: A narrative review. SPORTS MEDICINE AND HEALTH SCIENCE 2024; 6:139-153. [PMID: 38708320 PMCID: PMC11067861 DOI: 10.1016/j.smhs.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 01/09/2024] [Accepted: 01/19/2024] [Indexed: 05/07/2024] Open
Abstract
The benefits of physical activity and exercise, especially those classified as moderate-to-vigorous activity (MVPA), have been well-established in preventing non-communicable diseases and mental health problems in healthy adults. However, the relationship between physical activity and exercise and the prevention and management of acute respiratory infection (ARI), a global high-burden disease, has been inconclusive. There have been debates and disagreements among scientific publications regarding the relationship between exercise and immune response against the causative agents of ARI. This narrative review aims to explore the theory that sufficiently explains the correlation between exercise, immune response, and ARI. The potential root causes of discrepancies come from research associated with the "open window" hypothesis. The studies have several limitations, and future improvements to address them are urgently needed in the study design, data collection, exercise intervention, subject recruitment, biomarkers for infection and inflammation, nutritional and metabolism status, and in addressing confounding variables. In conclusion, data support the clinical advantages of exercise have a regulatory contribution toward improving the immune response, which in turn potentially protects humans fromARI. However, the hypothesis related to its negative effect must be adopted cautiously.
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Affiliation(s)
- Denny Agustiningsih
- Department of Physiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
| | - Tri Wibawa
- Department of Microbiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
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5
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Naeem A, Alkadi HS, Manzoor MU, Yousaf I, Awadalla M, Alturaiki W, AlYami AS, Zafar A, Alosaimi B. Mutations at the conserved N-Terminal of the human Rhinovirus capsid gene VP4, and their impact on the immune response. J Immunoassay Immunochem 2024; 45:271-291. [PMID: 38551181 DOI: 10.1080/15321819.2024.2323460] [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] [Indexed: 06/25/2024]
Abstract
Rhinoviruses (RV) are the major cause of chronic obstructive pulmonary disease and are associated with exacerbation development as well as community-acquired pneumonia in children, leading to substantial morbidity, mortality, and hospital admission. Here we have examined how changes at the amino terminal of the conserved VP4 epitope of different RV serotypes may affect pulmonary cytokine and chemokine responses and disease severity. Samples positive for rhinovirus were used for genetic characterization, followed by profiling gene expression of pulmonary Th1 and Th2 cytokines/chemokines by RT-PCR arrays. Genetic sequencing and homology 3D modeling revealed changes at the amino terminal of the conserved viral protein 4 (VP4) epitope in the RV-A101 serotype, especially serine at several positions that are important for interactive binding with the host immune cells. We found dysregulation of pulmonary gene expression of Th1- and Th2-related cytokines and chemokines in RV-A 101 and RV-C 8 pneumonia patients. These findings might contribute to a better understanding of RV immunity and the potential mechanisms underlying the pathogenesis of severe RV infections, but further functional studies are needed to confirm the causal relationship.
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Affiliation(s)
- Asif Naeem
- Department of Research Labs, Research Center, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Haitham S Alkadi
- Department of Research Labs, Research Center, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Muhammad U Manzoor
- Department of Medical Imaging, Diagnostic & Interventional Neuroradiology, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Imran Yousaf
- Department of Medical Imaging, Diagnostic & Interventional Neuroradiology, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Maaweya Awadalla
- Department of Research Labs, Research Center, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Wael Alturaiki
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Riyadh Region, Saudi Arabia
| | - Ahmad S AlYami
- Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Adnan Zafar
- Pediatric Department, John Hopkins Aramco Healthcare, Al-Ahsa, Saudi Arabia
| | - Bandar Alosaimi
- Department of Research Labs, Research Center, King Fahad Medical City, Riyadh, Saudi Arabia
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6
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Liao HC, Shen KY, Yang CH, Chiu FF, Chiang CY, Chai KM, Huang WC, Ho HM, Chen YH, Huang MS, Liao CL, Chen HW, Huang MH, Liu SJ. Lipid nanoparticle-encapsulated DNA vaccine robustly induce superior immune responses to the mRNA vaccine in Syrian hamsters. Mol Ther Methods Clin Dev 2024; 32:101169. [PMID: 38187094 PMCID: PMC10767207 DOI: 10.1016/j.omtm.2023.101169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 11/30/2023] [Indexed: 01/09/2024]
Abstract
DNA vaccines for infectious diseases and cancer have been explored for years. To date, only one DNA vaccine (ZyCoV-D) has been authorized for emergency use in India. DNA vaccines are inexpensive and long-term thermostable, however, limited by the low efficiency of intracellular delivery. The recent success of mRNA/lipid nanoparticle (LNP) technology in the coronavirus disease 2019 (COVID-19) pandemic has opened a new application for nucleic acid-based vaccines. Here, we report that plasmid encoding a trimeric spike protein with LNP delivery (pTS/LNP), similar to those in Moderna's COVID-19 vaccine, induced more effective humoral responses than naked pTS or pTS delivered via electroporation. Compared with TSmRNA/LNP, pTS/LNP immunization induced a comparable level of neutralizing antibody titers and significant T helper 1-biased immunity in mice; it also prolonged the maintenance of higher antigen-specific IgG and neutralizing antibody titers in hamsters. Importantly, pTS/LNP immunization exhibits enhanced cross-neutralizing activity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants and protects hamsters from the challenge of SARS-CoV-2 (Wuhan strain and the Omicron BA.1 variant). This study indicates that pDNA/LNPs as a promising platform could be a next-generation vaccine technology.
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Affiliation(s)
- Hung-Chun Liao
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Kuan-Yin Shen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Chung-Hsiang Yang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Fang-Feng Chiu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Chen-Yi Chiang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Kit Man Chai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Wan-Chun Huang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Hui-Min Ho
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Yi-Hua Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Min-Syuan Huang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Ching-Len Liao
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Hsin-Wei Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Hsi Huang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shih-Jen Liu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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7
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Roier S, Mangala Prasad V, McNeal MM, Lee KK, Petsch B, Rauch S. mRNA-based VP8* nanoparticle vaccines against rotavirus are highly immunogenic in rodents. NPJ Vaccines 2023; 8:190. [PMID: 38129390 PMCID: PMC10739717 DOI: 10.1038/s41541-023-00790-z] [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: 03/31/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Despite the availability of live-attenuated oral vaccines, rotavirus remains a major cause of severe childhood diarrhea worldwide. Due to the growing demand for parenteral rotavirus vaccines, we developed mRNA-based vaccine candidates targeting the viral spike protein VP8*. Our monomeric P2 (universal T cell epitope)-VP8* mRNA design is equivalent to a protein vaccine currently in clinical development, while LS (lumazine synthase)-P2-VP8* was designed to form nanoparticles. Cyro-electron microscopy and western blotting-based data presented here suggest that proteins derived from LS-P2-VP8* mRNA are secreted in vitro and self-assemble into 60-mer nanoparticles displaying VP8*. mRNA encoded VP8* was immunogenic in rodents and introduced both humoral and cellular responses. LS-P2-VP8* induced superior humoral responses to P2-VP8* in guinea pigs, both as monovalent and trivalent vaccines, with encouraging responses detected against the most prevalent P genotypes. Overall, our data provide evidence that trivalent LS-P2-VP8* represents a promising mRNA-based next-generation rotavirus vaccine candidate.
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Affiliation(s)
| | - Vidya Mangala Prasad
- Department of Medicinal Chemistry, University of Washington, Seattle, WA, USA
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India
| | - Monica M McNeal
- Department of Pediatrics, University of Cincinnati College of Medicine, Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Kelly K Lee
- Department of Medicinal Chemistry, University of Washington, Seattle, WA, USA
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8
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Lloren KKS, Lee JH. Live-Attenuated Salmonella-Based Oral Vaccine Candidates Expressing PCV2d Cap and Rep by Novel Expression Plasmids as a Vaccination Strategy for Mucosal and Systemic Immune Responses against PCV2d. Vaccines (Basel) 2023; 11:1777. [PMID: 38140182 PMCID: PMC10748173 DOI: 10.3390/vaccines11121777] [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: 10/28/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
Oral vaccines are highly envisaged for veterinary applications due to their convenience and ability to induce protective mucosal immunity as the first line of defense. The present investigation harnessed live-attenuated Salmonella Typhimurium to orally deliver novel expression vector systems containing the Cap and Rep genes from porcine circovirus type 2 (PCV2), a significant swine pathogen. The antigen expression by the vaccine candidates JOL2885 and JOL2886, comprising eukaryotic pJHL204 and pro-eukaryotic expression pJHL270 plasmids, respectively, was confirmed by Western blot and IFA. We evaluated their immunogenicity and protective efficacy through oral vaccination in a mouse model. This approach elicited both mucosal and systemic immunity against PCV2d. Oral administration of the candidates induced PCV2-specific sIgA, serum IgG antibodies, and neutralizing antibodies, resulting in reduced viral loads in the livers and lungs of PCV2d-challenged mice. T-lymphocyte proliferation and flow-cytometry assays confirmed enhanced cellular immune responses after oral inoculation. The synchronized elicitation of both Th1 and Th2 responses was also confirmed by enhanced expression of TNF-α, IFN-γ, IL-4, MHC-I, and MHC-II. Our findings highlight the effectiveness and safety of the constructs with an engineered-attenuated S. Typhimurium, suggesting its potential application as an oral PCV2 vaccine candidate.
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Affiliation(s)
| | - John Hwa Lee
- College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea;
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9
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Liu X, Han J, Cui R, Peng M, Song H, Li R, Chen G. The Promotion of Humoral Immune Responses in Humans via SOCS1-Mediated Th2-Bias Following SARS-CoV-2 Vaccination. Vaccines (Basel) 2023; 11:1730. [PMID: 38006062 PMCID: PMC10674672 DOI: 10.3390/vaccines11111730] [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: 10/08/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
The effectiveness of SARS-CoV-2 vaccines varies among individuals. During the COVID-19 global pandemic, SARS-CoV-2 infection showed significant Th1 characteristics, suggesting that the immune disorder and production of SARS-CoV-2 antibodies may be related to Th1/Th2 bias. However, the molecular mechanisms underlying Th1/Th2 bias effects on host immune responses to viruses remain unclear. In this study, the top three subjects with the highest and lowest changes in anti-SARS-CoV-2 antibodies after receiving three doses of SARS-CoV-2 vaccination were selected and defined as the elevated group (E) and the control group (C), respectively. Peripheral blood was collected, single-cell sequencing was performed before and after the third dose of the SARS-CoV-2 vaccine, and the changes in T cell clusters were analyzed. Compared with the C group, the Treg pre-vaccination proportion was lower in E, while the post-vaccination proportion was higher, suggesting that Tregs may be crucial in this process. Differential analysis results of Tregs between the two groups revealed that differentially expressed genes (DEGs) were significantly enriched in the IL4 pathway. Correlation analysis between DEGs and serum antibody showed that the expression of NR4A2, SOCS1, and SOCS3 in Tregs was significantly correlated with serum antibodies, suggesting that the immune response in E group changed to Th2 bias, thereby promoting host humoral immune responses. On the other hand, antibody-related genes SOCS1 and NR4A2, as well as lnc-RNA MALAT1 and NEAT1, were highly expressed in the CD4-MALAT1 subclusters. In summary, our study revealed that Th2 bias promotes humoral immune responses in humans by increasing SOCS1 in T cells after SARS-CoV-2 vaccination. Moreover, NR4A2, SOCS1, MALAT1, and NEAT1 were identified as the potential key biomarkers or treatment targets for enhanced SARS-CoV-2 antibody production by influencing the Th1/Th2 balance in T cells. Our findings have important implications for population stratification and tailored therapeutics for more effective SARS-CoV-2 vaccines.
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Affiliation(s)
- Xiaoyu Liu
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China; (X.L.); (R.C.); (M.P.); (H.S.)
| | - Junyong Han
- Fujian Key Laboratory of Medical Measurement, Fujian Academy of Medical Sciences, Fuzhou 350001, China;
| | - Renjie Cui
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China; (X.L.); (R.C.); (M.P.); (H.S.)
| | - Meifang Peng
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China; (X.L.); (R.C.); (M.P.); (H.S.)
| | - Huaidong Song
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China; (X.L.); (R.C.); (M.P.); (H.S.)
- Department of Endocrinology, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Rui Li
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China; (X.L.); (R.C.); (M.P.); (H.S.)
| | - Gang Chen
- Fujian Key Laboratory of Medical Measurement, Fujian Academy of Medical Sciences, Fuzhou 350001, China;
- Department of Endocrinology, Fujian Provincial Hospital, Fuzhou 350001, China
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
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10
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Al-Shalan HAM, Hu D, Wang P, Uddin J, Chopra A, Greene WK, Ma B. Transcriptomic Profiling of Influenza A Virus-Infected Mouse Lung at Recovery Stage Using RNA Sequencing. Viruses 2023; 15:2198. [PMID: 38005876 PMCID: PMC10675624 DOI: 10.3390/v15112198] [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: 08/08/2023] [Revised: 10/19/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Influenza A virus (IAV) is known to cause mild to severe respiratory illness. Under some conditions, the infection can lead to pneumonia (viral or bacterial), acute respiratory distress syndrome, and other complications that can be fatal, especially in vulnerable populations such as the elderly, young children, and individuals with underlying health conditions. Despite previous studies, little is known about the host immune response and neuroimmune interactions in IAV infection. Using RNA sequencing, we performed transcriptomic analysis of murine lung tissue 21 days post infection (dpi) with IAV (H1N1) in order to find the differentially expression genes (DEGs) related to the host immune response and neuroimmune interactions inside the lung during recovery. Among 792 DEGs, 434 genes were up-regulated, whereas 358 genes were down-regulated. The most prominent molecular functions of the up-regulated genes were related to the immune response and tissue repair, whereas a large proportion of the down-regulated genes were associated with neural functions. Although further molecular/functional studies need to be performed for these DEGs, our results facilitate the understanding of the host response (from innate immunity to adaptive immunity) and neuroimmune interactions in infected lungs at the recovery stage of IAV infection. These genes might have potential uses as mechanistic/diagnostic biomarkers and represent possible targets for anti-IAV therapies.
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Affiliation(s)
- Huda A M Al-Shalan
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
- Department of Microbiology/Virology, College of Veterinary Medicine, Baghdad University, Baghdad 10071, Iraq
| | - Dailun Hu
- Department of Pathogenic Biology, Hebei Medical University, Shijiazhuang 050017, China
| | - Penghao Wang
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
| | - Jasim Uddin
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
| | - Abha Chopra
- Genomics Core Research Facility, Health Futures Institute, Murdoch University, Murdoch, WA 6149, Australia
| | - Wayne K Greene
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
| | - Bin Ma
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
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Adjobimey T, Meyer J, Hennenfent A, Bara AJ, Lagnika L, Kocou B, Adjagba M, Laleye A, Hoerauf A, Parcina M. Negative association between ascaris lumbricoides seropositivity and Covid-19 severity: insights from a study in Benin. Front Immunol 2023; 14:1233082. [PMID: 37622109 PMCID: PMC10446766 DOI: 10.3389/fimmu.2023.1233082] [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: 06/01/2023] [Accepted: 07/20/2023] [Indexed: 08/26/2023] Open
Abstract
Introduction The COVID-19 pandemic has had devastating effects worldwide, but the trajectory of the pandemic has been milder in Low-and-Middle-Income Countries (LMICs), including those in Africa. Co-infection with helminths, such as Ascaris lumbricoides, has been suggested as a possible factor contributing to the reduced severity observed in these regions. Methods The present study investigated the association between Ascaris-specific antibody levels and COVID-19 severity in 276 SARS-CoV-2-infected individuals in Benin. Participants were categorized into asymptomatic (n=100), mild (n=150), and severe (n=26) groups based on clinical disease severity. Sera were collected and analyzed using ELISA to measure Ascaris and SARS-CoV-2-specific antibodies, while Luminex was used to assess cytokines and SARS-CoV-2-specific neutralizing antibody expression. Results and discussion The results demonstrated that asymptomatic SARS-CoV-2 seropositive individuals expressed, on average, 1.7 and 2.2-times higher levels of Ascaris antibodies compared to individuals with mild and severe COVID-19, respectively. This finding suggests an inverse correlation between Ascaris antibody levels and COVID-19 severity. Notably, logistic regression analysis showed that Ascaris seropositivity was significantly associated with a reduced risk of severe COVID-19 (OR = 0.277, p = 0.021). Interestingly, COVID-19 patients with comorbidities such as type 2 diabetes and high blood pressure showed lower expression of Ascaris antibodies. Strikingly, no correlation was observed between Ascaris antibody levels and SARS-CoV-2-specific neutralizing antibodies. On the other hand, individuals seronegative for Ascaris displayed significantly higher levels of systemic pro-inflammatory markers compared to seropositive individuals. These findings suggest that higher expression of Ascaris antibodies is associated with asymptomatic SARS-CoV-2 infections and may contribute to the reduction of the risk to develop severe COVID-19. The beneficial effect of Ascaris seropositivity on COVID-19 outcomes in Benin may be attributed to a decrease in comorbidities and pro-inflammatory markers. These observations provide valuable insights into the milder COVID-19 trajectory observed in Africa and may have implications for future therapeutic strategies.
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Affiliation(s)
- Tomabu Adjobimey
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
- Laboratoire de Biologie intégrative pour l’Innovation thérapeutique (BioInov), Faculté des Sciences et Techniques (FAST), Université d’Abomey Calavi, Abomey Calavi, Benin
| | - Julia Meyer
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
| | - Anneka Hennenfent
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
| | - Anick J. Bara
- Laboratoire de Biologie intégrative pour l’Innovation thérapeutique (BioInov), Faculté des Sciences et Techniques (FAST), Université d’Abomey Calavi, Abomey Calavi, Benin
| | - Latifou Lagnika
- Laboratoire de Biologie intégrative pour l’Innovation thérapeutique (BioInov), Faculté des Sciences et Techniques (FAST), Université d’Abomey Calavi, Abomey Calavi, Benin
| | - Bienvenu Kocou
- Laboratoire de Biologie intégrative pour l’Innovation thérapeutique (BioInov), Faculté des Sciences et Techniques (FAST), Université d’Abomey Calavi, Abomey Calavi, Benin
| | - Marius Adjagba
- Laboratoire de Cytogénétique, Faculté des Sciences de la Santé (FSS), Université d’Abomey-Calavi, Cotonou, Benin
| | - Anatole Laleye
- Laboratoire de Cytogénétique, Faculté des Sciences de la Santé (FSS), Université d’Abomey-Calavi, Cotonou, Benin
| | - Achim Hoerauf
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
- Bonn-Cologne Site, German Center for Infectious Disease Research (DZIF), Bonn, Germany
| | - Marijo Parcina
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
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12
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Pérez Gómez AA, Wang M, Kochan K, Amstalden K, Young CR, Welsh CJ, Phillips TD, Brinkmeyer-Langford CL. C57BL/6J mice exposed to perfluorooctanoic acid demonstrate altered immune responses and increased seizures after Theiler's murine encephalomyelitis virus infection. Front Immunol 2023; 14:1228509. [PMID: 37600798 PMCID: PMC10434537 DOI: 10.3389/fimmu.2023.1228509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Introduction Neurological diseases can stem from environmental influences such as antecedent viral infections or exposure to potential toxicants, some of which can trigger immune responses leading to neurological symptoms. Theiler's murine encephalomyelitis virus (TMEV) is used to model human neurological conditions associated with prior viral infections, with outcomes partly attributable to improper induction and regulation of the immune response. Perfluorooctanoic acid (PFOA) can alter pathologies known to influence neurological disease such as inflammatory responses, cytokine expression, and glial activation. Co-exposure to TMEV and PFOA was used to test the hypothesis that early life exposure to the potential immunotoxicant PFOA would affect immune responses so as to render TMEV-resistant C57BL/6J (B6) mice susceptible to viral-induced neurological disease. Methods Neonate B6 mice were exposed to different treatments: non-injected, sham-infected with PBS, and TMEV-infected, with the drinking water of each group including either 70 ppt PFOA or filtered water. The effects of PFOA were evaluated by comparing neurological symptoms and changes in immune-related cytokine and chemokine production induced by viral infection. Immune responses of 23 cytokines and chemokines were measured before and after infection to determine the effects of PFOA exposure on immune response. Results Prior to infection, an imbalance between Th1, Th2, and Treg cytokines was observed in PFOA-exposed mice, suppressing IL-4 and IL-13 production. However, the balance was restored and characterized by an increase in pro-inflammatory cytokines in the non-infected group, and a decrease in IL-10 in the PFOA + TMEV group. Furthermore, the PFOA + TMEV group experienced an increase in seizure frequency and severity. Discussion Overall, these findings provide insight into the complex roles of immune responses in the pathogenesis of virus-associated neurological diseases influenced by co-exposures to viruses and immunotoxic compounds.
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Affiliation(s)
- Aracely A. Pérez Gómez
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
| | - Meichen Wang
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
| | - Kelli Kochan
- Texas A&M Institute for Genome Sciences and Society, Texas A&M University, College Station, TX, United States
| | - Katia Amstalden
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
| | - Colin R. Young
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
| | - C. Jane Welsh
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
| | - Timothy D. Phillips
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
| | - Candice L. Brinkmeyer-Langford
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
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Wu LL, Tang L. Relationship of preoperative Th1/Th2 ratio, TNF-α, and ALB with pulmonary infection in elderly patients after radical surgery for gastric cancer and predictive efficacy of a nomogram based on these factors. Shijie Huaren Xiaohua Zazhi 2023; 31:456-463. [DOI: 10.11569/wcjd.v31.i11.456] [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] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND The immune system and the inflammatory response play an important role in the development of lung infections in the elderly population after radical gastric cancer surgery. Helper T cell 1 (Th1)/helper T cell 2 (Th2) phenotype reflects the dynamic immune homeostasis. Preoperative Th1/Th2 ratio and inflammatory response-related factors may have predictive value for postoperative lung infection.
AIM To investigate the relationship of Th1/Th2 ratio, tumor necrosis factor-α (TNF-α), and albumin (ALB) with pulmonary infection in elderly patients after radical gastrectomy for gastric cancer and their predictive efficacy for postoperative pulmonary infection.
METHODS A total of 135 patients with lung infection after radical gastric cancer surgery (infection group) and 135 uninfected patients (control group) admitted to our hospital from April 2020 to June 2022 were included in this study. The general demographic data, surgery-related conditions, combined diseases, and preoperative serum Th1/Th2 ratio, TNF-α, and ALB levels were compared between the two groups. R was used to draw a nomogram for predicting lung infection after radical gastrectomy in elderly patients, and the concordance index (C-index) of the nomogram was obtained to evaluate its prediction ability. The bootstrap method was used to draw the prediction curve, calibration curve, and ideal curve to evaluate the consistency between the nomogram and the actual observation results, and decision curve analysis (DCA) was performed to evaluate the clinical efficacy of the nomogram.
RESULTS The infection group had longer operative time and postoperative gastric tube indwelling time, higher intraoperative bleeding, and more diabetic patients than the control group (P < 0.05). Preoperative Th1/Th2 ratio and ALB were lower and TNF-α was higher in the infection group than in the control group (P < 0.05). Binary logistic regression analysis showed that operative time, intraoperative bleeding, diabetes mellitus, postoperative gastric tube indwelling time, and TNF-α were risk factors for pulmonary infection in elderly patients after radical surgery for gastric cancer, and Th1/Th2 ratio and ALB were protective factors (P < 0.05). A nomogram for predicting postoperative pulmonary infection was developed, and its C-index reached 0.985, which was at a high level. External validation showed that the calibration degree of the nomogram was 0.826, and there was good agreement between the model and the actual observation. DCA showed that the nomogram had obvious positive net benefit and possessed good clinical utility in predicting postoperative infection.
CONCLUSION Preoperative Th1/Th2 ratio, TNF-α, and ALB are associated with pulmonary infection in elderly patients after radical surgery for gastric cancer. The nomogram developed based on baseline correlation data with the above three indicators has good predictive ability and clinical utility, and can be used as a potential tool to predict postoperative infection and guide clinical management in the perioperative period.
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14
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Lasagna A, Pedrazzoli P, Bruno R, Sacchi P. Postvaccination immune-mediated hepatitis: what do we really know? Immunotherapy 2023; 15:627-630. [PMID: 37096908 DOI: 10.2217/imt-2023-0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
Tweetable abstract The percentage of patients with immune-mediated vaccine-associated hepatitis is minimal compared with the number of patients vaccinated worldwide.
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Affiliation(s)
- Angioletta Lasagna
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Viale Camillo Golgi 19, Pavia, 27100, Italy
| | - Paolo Pedrazzoli
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Viale Camillo Golgi 19, Pavia, 27100, Italy
- Department of Internal Medicine & Medical Therapy, University of Pavia, Viale Camillo Golgi 19, Pavia, 27100, Italy
| | - Raffaele Bruno
- Department of Clinical Surgical Diagnostic & Pediatric Sciences, University of Pavia, Viale Camillo Golgi 19, Pavia, 27100, Italy
- Division of Infectious Diseases I, Fondazione IRCCS Policlinico San Matteo, Viale Camillo Golgi 19, Pavia, 27100, Italy
| | - Paolo Sacchi
- Division of Infectious Diseases I, Fondazione IRCCS Policlinico San Matteo, Viale Camillo Golgi 19, Pavia, 27100, Italy
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15
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Jeong AY, Lee P, Lee MS, Kim DJ. Pre-existing Immunity to Endemic Human Coronaviruses Does Not Affect the Immune Response to SARS-CoV-2 Spike in a Murine Vaccination Model. Immune Netw 2023; 23:e19. [PMID: 37179748 PMCID: PMC10166660 DOI: 10.4110/in.2023.23.e19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/19/2023] [Accepted: 03/07/2023] [Indexed: 05/15/2023] Open
Abstract
Endemic human coronaviruses (HCoVs) have been evidenced to be cross-reactive to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Although a correlation exists between the immunological memory to HCoVs and coronavirus disease 2019 (COVID-19) severity, there is little experimental evidence for the effects of HCoV memory on the efficacy of COVID-19 vaccines. Here, we investigated the Ag-specific immune response to COVID-19 vaccines in the presence or absence of immunological memory against HCoV spike Ags in a mouse model. Pre-existing immunity against HCoV did not affect the COVID-19 vaccine-mediated humoral response with regard to Ag-specific total IgG and neutralizing Ab levels. The specific T cell response to the COVID-19 vaccine Ag was also unaltered, regardless of pre-exposure to HCoV spike Ags. Taken together, our data suggest that COVID-19 vaccines elicit comparable immunity regardless of immunological memory to spike of endemic HCoVs in a mouse model.
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Affiliation(s)
- Ahn Young Jeong
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea
| | - Pureum Lee
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea
| | - Moo-Seung Lee
- Department of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Doo-Jin Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea
- Department of Biochemistry, Chungnam National University, Daejeon 34134, Korea
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Wahyuningtyas R, Wu ML, Chung WB, Chaung HC, Chang KT. Toll-like Receptor-Mediated Immunomodulation of Th1-Type Response Stimulated by Recombinant Antigen of Type 2 Porcine Reproductive and Respiratory Syndrome Virus (PRRSV-2). Viruses 2023; 15:v15030775. [PMID: 36992483 PMCID: PMC10057405 DOI: 10.3390/v15030775] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/05/2023] [Accepted: 03/14/2023] [Indexed: 03/22/2023] Open
Abstract
PRRSV infects CD163-positive macrophages and skews their polarization toward an M2 phenotype, followed by T-cell inactivation. In our previous study, we found that recombinant protein A1 antigen derived from PRRSV-2 was a potential vaccine or adjuvant for immunization against PRRSV-2 infection due to its ability to repolarize macrophages into M1 subtype, thereby reducing CD163 expression for viral entry and promoting immunomodulation for Th1-type responses, except for stimulating Toll-like receptor (TLR) activation. The aim of our current study was to evaluate the effects of another two recombinant antigens, A3 (ORF6L5) and A4 (NLNsp10L11), for their ability to trigger innate immune responses including TLR activation. We isolated pulmonary alveolar macrophages (PAMs) from 8- to 12-week-old specific pathogen free (SPF) piglets and stimulated them with PRRSV (0.01 MOI and 0.05 MOI) or antigens. We also investigated the T-cell differentiation by immunological synapse activation of PAMs and CD4+ T-cells in the cocultured system. To confirm the infection of PRRSV in PAMs, we checked the expression of TLR3, 7, 8, and 9. Our results showed that the expression of TLR3, 7, and 9 were significantly upregulated in PAMs by A3 antigen induction, similar to the extent of PRRSV infection. Gene profile results showed that A3 repolarizes macrophages into the M1 subtype potently, in parallel with A1, as indicated by significant upregulation of proinflammatory genes (TNF-α, IL-6, IL-1β and IL-12). Upon immunological synapse activation, A3 potentially differentiated CD4 T cells into Th1 cells, determined by the expression of IL-12 and IFN-γ secretion. On the contrary, antigen A4 promoted regulatory T cell (T-reg) differentiation by significant upregulation of IL-10 expression. Finally, we concluded that the PRRSV-2 recombinant protein A3 provided better protection against PRRSV infection, suggested by its capability to reeducate immunosuppressive M2 macrophages into proinflammatory M1 cells. As M1 macrophages are prone to be functional antigen-presenting cells (APCs), they can call for TLR activation and Th1-type immune response within the immunological synapse.
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Affiliation(s)
- Rika Wahyuningtyas
- Research Centre for Animal Biologics, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Mei-Li Wu
- Research Centre for Animal Biologics, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Food Science, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Wen-Bin Chung
- Research Centre for Animal Biologics, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Hso-Chi Chaung
- Research Centre for Animal Biologics, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Flow Cytometry Center, Precision Instruments Center, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Correspondence: (H.-C.C.); (K.-T.C.)
| | - Ko-Tung Chang
- Research Centre for Animal Biologics, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Flow Cytometry Center, Precision Instruments Center, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Correspondence: (H.-C.C.); (K.-T.C.)
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Serological Cross-Reactivity in Zoonotic Flaviviral Infections of Medical Importance. Antibodies (Basel) 2023; 12:antib12010018. [PMID: 36975365 PMCID: PMC10045537 DOI: 10.3390/antib12010018] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 03/03/2023] Open
Abstract
Flaviviruses are enveloped RNA viruses from the family Flaviviridae that comprise many important human pathogenic arboviruses such as Yellow Fever, Dengue, and Zika viruses. Because they belong to the same genus, these viruses show sequence and structural homology among them, which results in serological cross-reactivity. Upon infection, the immune system produces both species-specific and cross-reactive antibodies, and depending on the virus, in a successive flavivirus infection, cross-reactive antibodies either enhance protection or exacerbate the disease—the latter usually due to antibody-dependent enhancement. These antigenic relationships between different flaviviruses that lead to serological cross-reactivity make them difficult to be identified through serological methods, especially when it comes to successive flavivirus infections. We present here an overview of the main structural, epidemiological, and immunological aspects of flaviviruses, highlighting the role of neutralizing antibodies in fighting viral infections and in the “original antigenic sin” problem. Finally, we draw attention to the importance of developing a rapid serological diagnostic test for flaviviruses with high sensitivity and specificity, especially when considering that cross-reactive immunity can influence the outcome of these infections.
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Vojdani A, Vojdani E, Saidara E, Maes M. Persistent SARS-CoV-2 Infection, EBV, HHV-6 and Other Factors May Contribute to Inflammation and Autoimmunity in Long COVID. Viruses 2023; 15:v15020400. [PMID: 36851614 PMCID: PMC9967513 DOI: 10.3390/v15020400] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
A novel syndrome called long-haul COVID or long COVID is increasingly recognized in a significant percentage of individuals within a few months after infection with SARS-CoV-2. This disorder is characterized by a wide range of persisting, returning or even new but related symptoms that involve different tissues and organs, including respiratory, cardiac, vascular, gastrointestinal, musculo-skeletal, neurological, endocrine and systemic. Some overlapping symptomatologies exist between long COVID and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Very much like with long ME/CFS, infections with herpes family viruses, immune dysregulation, and the persistence of inflammation have been reported as the most common pattern for the development of long COVID. This review describes several factors and determinants of long COVID that have been proposed, elaborating mainly on viral persistence, reactivation of latent viruses such as Epstein-Barr virus and human herpesvirus 6 which are also associated with the pathology of ME/CFS, viral superantigen activation of the immune system, disturbance in the gut microbiome, and multiple tissue damage and autoimmunity. Based on these factors, we propose diagnostic strategies such as the measurement of IgG and IgM antibodies against SARS-CoV-2, EBV, HHV-6, viral superantigens, gut microbiota, and biomarkers of autoimmunity to better understand and manage this multi-factorial disorder that continues to affect millions of people in the world.
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Affiliation(s)
- Aristo Vojdani
- Immunosciences Lab, Inc., Los Angeles, CA 90035, USA
- Cyrex Laboratories, LLC, Phoenix, AZ 85034, USA
- Correspondence: ; Tel.: +1-310-657-1077
| | | | - Evan Saidara
- Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand
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Singh DD, Han I, Choi EH, Yadav DK. A Clinical Update on SARS-CoV-2: Pathology and Development of Potential Inhibitors. Curr Issues Mol Biol 2023; 45:400-433. [PMID: 36661514 PMCID: PMC9857284 DOI: 10.3390/cimb45010028] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/29/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023] Open
Abstract
SARS-CoV-2 (severe acute respiratory syndrome) is highly infectious and causes severe acute respiratory distress syndrome (SARD), immune suppression, and multi-organ failure. For SARS-CoV-2, only supportive treatment options are available, such as oxygen supportive therapy, ventilator support, antibiotics for secondary infections, mineral and fluid treatment, and a significant subset of repurposed effective drugs. Viral targeted inhibitors are the most suitable molecules, such as ACE2 (angiotensin-converting enzyme-2) and RBD (receptor-binding domain) protein-based inhibitors, inhibitors of host proteases, inhibitors of viral proteases 3CLpro (3C-like proteinase) and PLpro (papain-like protease), inhibitors of replicative enzymes, inhibitors of viral attachment of SARS-CoV-2 to the ACE2 receptor and TMPRSS2 (transmembrane serine proteinase 2), inhibitors of HR1 (Heptad Repeat 1)-HR2 (Heptad Repeat 2) interaction at the S2 protein of the coronavirus, etc. Targeting the cathepsin L proteinase, peptide analogues, monoclonal antibodies, and protein chimaeras as RBD inhibitors interferes with the spike protein's ability to fuse to the membrane. Targeting the cathepsin L proteinase, peptide analogues, monoclonal antibodies, and protein chimaeras as RBD inhibitors interferes with the spike protein's ability to fuse to the membrane. Even with the tremendous progress made, creating effective drugs remains difficult. To develop COVID-19 treatment alternatives, clinical studies are examining a variety of therapy categories, including antibodies, antivirals, cell-based therapy, repurposed diagnostic medicines, and more. In this article, we discuss recent clinical updates on SARS-CoV-2 infection, clinical characteristics, diagnosis, immunopathology, the new emergence of variant, SARS-CoV-2, various approaches to drug development and treatment options. The development of therapies has been complicated by the global occurrence of many SARS-CoV-2 mutations. Discussion of this manuscript will provide new insight into drug pathophysiology and drug development.
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Affiliation(s)
- Desh Deepak Singh
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur 303002, India
| | - Ihn Han
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical & Biological Physics, Kwangwoon University, Seoul 01897, Republic of Korea
- Correspondence: (I.H.); (D.K.Y.); Tel.: +82-2-597-0365 (I.H. & D.K.Y.)
| | - Eun-Ha Choi
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical & Biological Physics, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Dharmendra Kumar Yadav
- Department of R&D Center, Arontier Co., Seoul 06735, Republic of Korea
- Correspondence: (I.H.); (D.K.Y.); Tel.: +82-2-597-0365 (I.H. & D.K.Y.)
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20
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Renner TM, Akache B, Stuible M, Rohani N, Cepero-Donates Y, Deschatelets L, Dudani R, Harrison BA, Baardsnes J, Koyuturk I, Hill JJ, Hemraz UD, Régnier S, Lenferink AEG, Durocher Y, McCluskie MJ. Tuning the immune response: sulfated archaeal glycolipid archaeosomes as an effective vaccine adjuvant for induction of humoral and cell-mediated immunity towards the SARS-CoV-2 Omicron variant of concern. Front Immunol 2023; 14:1182556. [PMID: 37122746 PMCID: PMC10140330 DOI: 10.3389/fimmu.2023.1182556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 03/28/2023] [Indexed: 05/02/2023] Open
Abstract
Liposomes composed of sulfated lactosyl archaeol (SLA) have been shown to be a safe and effective vaccine adjuvant with a multitude of antigens in preclinical studies. In particular, SLA-adjuvanted SARS-CoV-2 subunit vaccines based on trimeric spike protein antigens were shown to be immunogenic and efficacious in mice and hamsters. With the continued emergence of SARS-CoV-2 variants, we sought to evaluate next-generation vaccine formulations with an updated antigenic identity. This was of particular interest for the widespread Omicron variant, given the abundance of mutations and structural changes observed within its spike protein compared to other variants. An updated version of our resistin-trimerized SmT1 corresponding to the B.1.1.529 variant was successfully generated in our Chinese Hamster Ovary (CHO) cell-based antigen production platform and characterized, revealing some differences in protein profile and ACE2 binding affinity as compared to reference strain-based SmT1. We next evaluated this Omicron-based spike antigen for its immunogenicity and ability to generate robust antigen-specific immune responses when paired with SLA liposomes or AddaS03 (a mimetic of the AS03 oil-in-water emulsion adjuvant system found in commercialized SARS-CoV-2 protein vaccines). Immunization of mice with vaccine formulations containing this updated antigen with either adjuvant stimulated neutralizing antibody responses favouring Omicron over the reference strain. Cell-mediated responses, which play an important role in the neutralization of intracellular infections, were induced to a much higher degree with the SLA adjuvant relative to the AddaS03-adjuvanted formulations. As such, updated vaccines that are better capable of targeting towards SARS-CoV-2 variants can be generated through an optimized combination of antigen and adjuvant components.
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Affiliation(s)
- Tyler M. Renner
- National Research Council Canada, Human Health Therapeutics, Ottawa, ON, Canada
| | - Bassel Akache
- National Research Council Canada, Human Health Therapeutics, Ottawa, ON, Canada
| | - Matthew Stuible
- National Research Council Canada, Human Health Therapeutics, Montreal, QC, Canada
| | - Nazanin Rohani
- National Research Council Canada, Human Health Therapeutics, Montreal, QC, Canada
| | | | - Lise Deschatelets
- National Research Council Canada, Human Health Therapeutics, Ottawa, ON, Canada
| | - Renu Dudani
- National Research Council Canada, Human Health Therapeutics, Ottawa, ON, Canada
| | - Blair A. Harrison
- National Research Council Canada, Human Health Therapeutics, Ottawa, ON, Canada
| | - Jason Baardsnes
- National Research Council Canada, Human Health Therapeutics, Montreal, QC, Canada
| | - Izel Koyuturk
- National Research Council Canada, Human Health Therapeutics, Montreal, QC, Canada
| | - Jennifer J. Hill
- National Research Council Canada, Human Health Therapeutics, Ottawa, ON, Canada
| | - Usha D. Hemraz
- National Research Council Canada, Aquatic and Crop Resource Development, Montreal, QC, Canada
| | - Sophie Régnier
- National Research Council Canada, Aquatic and Crop Resource Development, Montreal, QC, Canada
| | - Anne E. G. Lenferink
- National Research Council Canada, Human Health Therapeutics, Montreal, QC, Canada
| | - Yves Durocher
- National Research Council Canada, Human Health Therapeutics, Montreal, QC, Canada
| | - Michael J. McCluskie
- National Research Council Canada, Human Health Therapeutics, Ottawa, ON, Canada
- *Correspondence: Michael J. McCluskie,
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21
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Comparison of the Immune Response in Vaccinated People Positive and Negative to SARS-CoV-2 Employing FTIR Spectroscopy. Cells 2022; 11:cells11233884. [PMID: 36497139 PMCID: PMC9740721 DOI: 10.3390/cells11233884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/21/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
Various immunopathological events characterize the systemic acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Moreover, it has been reported that coronavirus disease 2019 (COVID-19) vaccination and infection by SARS-CoV-2 induce humoral immunity mediated by B-cell-derived antibodies and cellular immunity mediated by T cells and memory B cells. Immunoglobulins, cytokines, and chemokines play an important role in shaping immunity in response to infection and vaccination. Furthermore, different vaccines have been developed to prevent COVID-19. Therefore, this research aimed to analyze and compare Fourier-transform infrared (FTIR) spectra of vaccinated people with a positive (V-COVID-19 group) or negative (V-Healthy group) real-time quantitative reverse transcription-polymerase chain reaction (RT-qPCR) test, evaluating the immunoglobulin and cytokine content as an immunological response through FTIR spectroscopy. Most individuals that integrated the V-Healthy group (88.1%) were asymptomatic; on the contrary, only 28% of the V-COVID-19 group was asymptomatic. Likewise, 68% of the V-COVID-19 group had at least one coexisting illness. Regarding the immunological response analyzed through FTIR spectroscopy, the V-COVID-19 group showed a greater immunoglobulins G, A, and M (IgG, IgA, and IgM) content, as well as the analyzed cytokines interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-ɑ), and interleukins 1β, 6, and 10 (IL-1β, IL-6, and IL-10). Therefore, we can state that it was possible to detect biochemical changes through FTIR spectroscopy associated with COVID-19 immune response in vaccinated people.
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22
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Al-qaim ZH, Owadh HKH, Ali SA, Hussein AS, Ameen TR, Kolemen A, Washi GA, Jalil AT. COVID-19 vaccination in patients with cancer: Opportunities and challenges. Front Oncol 2022; 12:1029325. [PMID: 36425557 PMCID: PMC9679654 DOI: 10.3389/fonc.2022.1029325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 10/17/2022] [Indexed: 09/26/2023] Open
Abstract
The rapid spread of the SARS-Cov-2 virus, the increase in the number of patients with severe COVID-19, and the high mortality rate created the basis for the production of safe and effective vaccines. Studies have confirmed the increased risk of severe Covid-19 disease and mortality in cancer patients. It is logical that cancer patients should be the first to receive the primary vaccination and the booster vaccine for Covid-19. Since studies related to cancer patients and the effectiveness of existing Covid-19 vaccines have not been widely conducted, there are significant uncertainties about the effectiveness of the vaccine and the level of humoral and cellular immune responses in these patients. As a result, the possible risks and side effects of existing vaccines are not clear for patients with different cancers who are undergoing special treatments. In this study, we will discuss the effectiveness and safety of existing vaccines on cancer patients. In addition, we highlight factors that could affect the effectiveness of vaccines in these patients and finally discuss opportunities and challenges related to vaccination in cancer patients.
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Affiliation(s)
- Zahraa Haleem Al-qaim
- Anesthesia Techniques Department, Al-Mustaqbal University College, Babylon, Hilla, Iraq
| | | | - Sarah A. Ali
- Department of Medical Laboratory Techniques, Al-Mustaqbal University College, Babylon, Hilla, Iraq
| | - Alaa S. Hussein
- Radiological Techniques Department, Al-Mustaqbal University College, Babylon, Hilla, Iraq
| | | | - Ayshan Kolemen
- Department of Dentistry, Al-Mustaqbal University College, Babylon, Hilla, Iraq
| | - Ghassan A. Washi
- Department of Nursing, Al-Mustaqbal University College, Babylon, Hilla, Iraq
| | - Abduladheem Turki Jalil
- Medical Laboratories Techniques Department, Al-Mustaqbal University College, Babylon, Hilla, Iraq
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