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Estrada M, Zhu C, Bzami A, White JA, Lal M. Development of a quantitative ELISA for SARS-CoV-2 vaccine candidate, NDV-HXP-S, with CpG 1018® adjuvant. Hum Vaccin Immunother 2024; 20:2315709. [PMID: 38372198 PMCID: PMC10877971 DOI: 10.1080/21645515.2024.2315709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/05/2024] [Indexed: 02/20/2024] Open
Abstract
NDV-HXP-S is a Newcastle disease virus (NDV) vectored vaccine candidate which expresses the S-antigen of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This vaccine candidate is under evaluation in human clinical studies with and without cytosine phosphate guanine (CpG) 1018® adjuvant. Existing potency methods for NDV-HXP-S do not allow for quantification of the S-antigen when the adjuvant is present. To support evaluation of NDV-HXP-S with CpG 1018® adjuvant, an inhibition enzyme-linked immunosorbent assay (ELISA) was developed to allow for quantification and stability assessments of the vaccine. A pilot 6-month stability study was conducted on NDV-HXP-S vaccine with and without CpG 1018® adjuvant under refrigerated conditions (2°C to 8°C) and accelerated stability testing conditions (40°C). The vaccine was mixed with and without CpG 1018® adjuvant in saline and maintained S-antigen content at 2°C to 8°C for the entire 6-month period. Additionally, a pilot controlled temperature chain (CTC) stability study was conducted at the completion of the 6-month study and demonstrated the possibility for this vaccine candidate to attain CTC stability labeling.
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Affiliation(s)
- Marcus Estrada
- Medical Devices and Health Technologies, PATH, Seattle, WA, USA
| | - Changcheng Zhu
- Medical Devices and Health Technologies, PATH, Seattle, WA, USA
| | - Anan Bzami
- Medical Devices and Health Technologies, PATH, Seattle, WA, USA
| | | | - Manjari Lal
- Medical Devices and Health Technologies, PATH, Seattle, WA, USA
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Warner BM, Chan M, Tailor N, Vendramelli R, Audet J, Meilleur C, Truong T, Garnett L, Willman M, Soule G, Tierney K, Albietz A, Moffat E, Higgins R, Santry LA, Leacy A, Pham PH, Yates JGE, Pei Y, Safronetz D, Strong JE, Susta L, Embury-Hyatt C, Wootton SK, Kobasa D. Mucosal Vaccination with a Newcastle Disease Virus-Vectored Vaccine Reduces Viral Loads in SARS-CoV-2-Infected Cynomolgus Macaques. Vaccines (Basel) 2024; 12:404. [PMID: 38675786 PMCID: PMC11054841 DOI: 10.3390/vaccines12040404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged following an outbreak of unexplained viral illness in China in late 2019. Since then, it has spread globally causing a pandemic that has resulted in millions of deaths and has had enormous economic and social consequences. The emergence of SARS-CoV-2 saw the rapid and widespread development of a number of vaccine candidates worldwide, and this never-before-seen pace of vaccine development led to several candidates progressing immediately through clinical trials. Many countries have now approved vaccines for emergency use, with large-scale vaccination programs ongoing. Despite these successes, there remains a need for ongoing pre-clinical and clinical development of vaccine candidates against SARS-CoV-2, as well as vaccines that can elicit strong mucosal immune responses. Here, we report on the efficacy of a Newcastle disease virus-vectored vaccine candidate expressing SARS-CoV-2 spike protein (NDV-FLS) administered to cynomolgus macaques. Macaques given two doses of the vaccine via respiratory immunization developed robust immune responses and had reduced viral RNA levels in nasal swabs and in the lower airway. Our data indicate that NDV-FLS administered mucosally provides significant protection against SARS-CoV-2 infection, resulting in reduced viral burden and disease manifestation, and should be considered as a viable candidate for clinical development.
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Affiliation(s)
- Bryce M. Warner
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Mable Chan
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Nikesh Tailor
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Robert Vendramelli
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Jonathan Audet
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Courtney Meilleur
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Thang Truong
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Lauren Garnett
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Marnie Willman
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Geoff Soule
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Kevin Tierney
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Alixandra Albietz
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
| | - Estella Moffat
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB R3E 3R2, Canada; (E.M.); (C.E.-H.)
| | - Rick Higgins
- Department of Radiology, Health Sciences Center, Winnipeg, MB R3A 1S1, Canada;
| | - Lisa A. Santry
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.A.S.); (A.L.); (P.H.P.); (J.G.E.Y.); (Y.P.); (L.S.)
| | - Alexander Leacy
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.A.S.); (A.L.); (P.H.P.); (J.G.E.Y.); (Y.P.); (L.S.)
| | - Phuc H. Pham
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.A.S.); (A.L.); (P.H.P.); (J.G.E.Y.); (Y.P.); (L.S.)
| | - Jacob G. E. Yates
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.A.S.); (A.L.); (P.H.P.); (J.G.E.Y.); (Y.P.); (L.S.)
| | - Yanlong Pei
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.A.S.); (A.L.); (P.H.P.); (J.G.E.Y.); (Y.P.); (L.S.)
| | - David Safronetz
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - James E. Strong
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Leonardo Susta
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.A.S.); (A.L.); (P.H.P.); (J.G.E.Y.); (Y.P.); (L.S.)
| | - Carissa Embury-Hyatt
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB R3E 3R2, Canada; (E.M.); (C.E.-H.)
| | - Sarah K. Wootton
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.A.S.); (A.L.); (P.H.P.); (J.G.E.Y.); (Y.P.); (L.S.)
| | - Darwyn Kobasa
- Special Pathogens, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB R3E 3R2, Canada; (M.C.); (N.T.); (R.V.); (J.A.); (C.M.); (T.T.); (L.G.); (M.W.); (G.S.); (K.T.); (A.A.); (D.S.); (J.E.S.); (D.K.)
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
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Luvira V, Pitisuttithum P. Effect of homologous or heterologous vaccine booster over two initial doses of inactivated COVID-19 vaccine. Expert Rev Vaccines 2024; 23:283-293. [PMID: 38369699 DOI: 10.1080/14760584.2024.2320861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
INTRODUCTION Inactivated vaccines were delivered to low- and middle-income countries during the early pandemics of COVID-19. Currently, more than 10 inactivated COVID-19 vaccines have been developed. Most inactivated vaccines contain an inactivated whole-cell index SARS-CoV-2 strain that is adjuvant. Whole virions inactivated with aluminum hydroxide vaccines were among the most commonly used. However, with the emerging of COVID-19 variants and waning of the immunity of two doses of after 3 months, WHO and many local governments have recommended the booster-dose program especially with heterologous platform vaccine. AREA COVERED This review was conducted through a literature search of the MEDLINE database to identify articles published from 2020 to 2023 covered the inactivated COVID-19 vaccines primary series with homologous and heterologous booster focusing on safety, immunogenicity, efficacy, and effectiveness. EXPERT OPINION The inactivated vaccines, especially whole virion inactivated in aluminum hydroxide appeared to be safe and had good priming effects. Immune responses generated after one dose of heterologous boost were high and able to preventing severity of disease and symptomatic infection. A new approach to inactivated vaccine has been developed using inactivating recombinant vector virus-NDV-HXP-S vaccine.
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Affiliation(s)
- Viravarn Luvira
- Vaccine Trial Centre, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Punnee Pitisuttithum
- Vaccine Trial Centre, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
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Cheng MQ, Li R, Luo X, Chen JY, Bai ZP, Zhao P, Weng ZY, Song G. Immunogenicity and safety of adjuvant-associated COVID-19 vaccines: A systematic review and meta-analysis of randomized controlled trials. Heliyon 2023; 9:e22858. [PMID: 38125524 PMCID: PMC10731085 DOI: 10.1016/j.heliyon.2023.e22858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Background The benefits and risks of adjuvant-associated COVID-19 vaccines (ACVs) are unclear. The study aimed to assess the immunogenicity and safety of ACVs compared with controls (placebo or the same vaccine without adjuvants [NACVs]). Methods Randomized controlled trials sourced from PubMed, EMBASE, Web of Science, and Cochrane Library were systematically reviewed. Evaluators extracted information independently. The evidence quality was assessed using random-effects models. The risk of bias was assessed using the Cochrane Risk of Bias tool. Results Of the 33 studies, 27 analyzed immunogenicity (n = 9069, ACVs group; n = 3757, control), and 26 analyzed safety (n = 58669, ACVs groups; n = 30733 control). Compared with controls, full vaccination with ACVs produced significant immune responses (relative risk [RR] of seroneutralization reaction, 12.3; 95 % confidence interval [95 % CI], 6.92-21.89; standardized mean deviation of geometric mean titer 3.96, 95 % CI, 3.35-4.58). Additionally, ACVs produced significant immunoreactivity compared with NACVs only (P < 0.05). Furthermore, full vaccination with ACVs significantly increased the risk of local and systemic adverse reactions (AEs) compared with controls. However, vaccination with ACVs did not significantly increase the risk of systemic and localized AEs compared with vaccination with NACVs only (P > 0.05). It was observed that ACVs had a lower risk of all-cause mortality than controls (RR, 0.51; 95 % CI 0.30-0.87). It was further found that ACVs produced nAb response against all sublines of the Omicron variant, but the antibody titers were lower than those for the SARS-CoV-2 original strain. Conclusions The findings of this meta-analysis demonstrate that ACVs may have a superior effect and an acceptable safety in preventing COVID-19. Although these results suggest the potential of ACVs, further studies are required.
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Affiliation(s)
- Meng-Qun Cheng
- Department of Reproductive Medicine, The Puer People's Hospital, Pu'er, China
| | - Rong Li
- Department of Pharmacy, The Puer People's Hospital, Pu'er, China
| | - Xin Luo
- Department of Pharmacy, The Puer People's Hospital, Pu'er, China
| | - Jing-Yu Chen
- Department of Pharmacy, The Puer People's Hospital, Pu'er, China
| | - Zhong-Ping Bai
- Department of Pharmacy, The Puer People's Hospital, Pu'er, China
| | - Pin Zhao
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Zhi-Ying Weng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Gao Song
- Department of Pharmacy, The Puer People's Hospital, Pu'er, China
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Tur-Planells V, García-Sastre A, Cuadrado-Castano S, Nistal-Villan E. Engineering Non-Human RNA Viruses for Cancer Therapy. Vaccines (Basel) 2023; 11:1617. [PMID: 37897020 PMCID: PMC10611381 DOI: 10.3390/vaccines11101617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Alongside the development and progress in cancer immunotherapy, research in oncolytic viruses (OVs) continues advancing novel treatment strategies to the clinic. With almost 50 clinical trials carried out over the last decade, the opportunities for intervention using OVs are expanding beyond the old-fashioned concept of "lytic killers", with promising breakthrough therapeutic strategies focused on leveraging the immunostimulatory potential of different viral platforms. This review presents an overview of non-human-adapted RNA viruses engineered for cancer therapy. Moreover, we describe the diverse strategies employed to manipulate the genomes of these viruses to optimize their therapeutic capabilities. By focusing on different aspects of this particular group of viruses, we describe the insights into the promising advancements in the field of virotherapy and its potential to revolutionize cancer treatment.
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Affiliation(s)
- Vicent Tur-Planells
- Microbiology Section, Department of Pharmaceutical Science and Health, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28668 Boadilla del Monte, Spain;
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sara Cuadrado-Castano
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Marc and Jennifer Lipschultz Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Icahn Genomics Institute (IGI), Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Estanislao Nistal-Villan
- Microbiology Section, Department of Pharmaceutical Science and Health, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28668 Boadilla del Monte, Spain;
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, 28668 Boadilla del Monte, Spain
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Wang S, Liang B, Wang W, Li L, Feng N, Zhao Y, Wang T, Yan F, Yang S, Xia X. Viral vectored vaccines: design, development, preventive and therapeutic applications in human diseases. Signal Transduct Target Ther 2023; 8:149. [PMID: 37029123 PMCID: PMC10081433 DOI: 10.1038/s41392-023-01408-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/06/2023] [Accepted: 03/14/2023] [Indexed: 04/09/2023] Open
Abstract
Human diseases, particularly infectious diseases and cancers, pose unprecedented challenges to public health security and the global economy. The development and distribution of novel prophylactic and therapeutic vaccines are the prioritized countermeasures of human disease. Among all vaccine platforms, viral vector vaccines offer distinguished advantages and represent prominent choices for pathogens that have hampered control efforts based on conventional vaccine approaches. Currently, viral vector vaccines remain one of the best strategies for induction of robust humoral and cellular immunity against human diseases. Numerous viruses of different families and origins, including vesicular stomatitis virus, rabies virus, parainfluenza virus, measles virus, Newcastle disease virus, influenza virus, adenovirus and poxvirus, are deemed to be prominent viral vectors that differ in structural characteristics, design strategy, antigen presentation capability, immunogenicity and protective efficacy. This review summarized the overall profile of the design strategies, progress in advance and steps taken to address barriers to the deployment of these viral vector vaccines, simultaneously highlighting their potential for mucosal delivery, therapeutic application in cancer as well as other key aspects concerning the rational application of these viral vector vaccines. Appropriate and accurate technological advances in viral vector vaccines would consolidate their position as a leading approach to accelerate breakthroughs in novel vaccines and facilitate a rapid response to public health emergencies.
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Affiliation(s)
- Shen Wang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Bo Liang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Weiqi Wang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Ling Li
- China National Research Center for Exotic Animal Diseases, China Animal Health and Epidemiology Center, Qingdao, China
| | - Na Feng
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Yongkun Zhao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Tiecheng Wang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Feihu Yan
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China.
| | - Songtao Yang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China.
| | - Xianzhu Xia
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China.
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Bykov Y, Dawodu G, Javaheri A, Garcia-Sastre A, Cuadrado-Castano S. Immune responses elicited by ssRNA(-) oncolytic viruses in the host and in the tumor microenvironment. J Cancer Metastasis Treat 2023; 9:10. [PMID: 37974615 PMCID: PMC10653360 DOI: 10.20517/2394-4722.2022.92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Oncolytic viruses (OVs) are at the forefront of biologicals for cancer treatment. They represent a diverse landscape of naturally occurring viral strains and genetically modified viruses that, either as single agents or as part of combination therapies, are being evaluated in preclinical and clinical settings. As the field gains momentum, the research on OVs has been shifting efforts to expand our understanding of the complex interplay between the virus, the tumor and the immune system, with the aim of rationally designing more efficient therapeutic interventions. Nowadays, the potential of an OV platform is no longer defined exclusively by the targeted replication and cancer cell killing capacities of the virus, but by its contribution as an immunostimulator, triggering the transformation of the immunosuppressive tumor microenvironment (TME) into a place where innate and adaptive immunity players can efficiently engage and lead the development of tumor-specific long-term memory responses. Here we review the immune mechanisms and host responses induced by ssRNA(-) (negative-sense single-stranded RNA) viruses as OV platforms. We focus on two ssRNA(-) OV candidates: Newcastle disease virus (NDV), an avian paramyxovirus with one of the longest histories of utilization as an OV, and influenza A (IAV) virus, a well-characterized human pathogen with extraordinary immunostimulatory capacities that is steadily advancing as an OV candidate through the development of recombinant IAV attenuated platforms.
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Affiliation(s)
- Yonina Bykov
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Gloria Dawodu
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Aryana Javaheri
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Adolfo Garcia-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sara Cuadrado-Castano
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Zhang Y, Lu M, Thongpan I, Xu J, Kc M, Dravid P, Trivedi S, Sharma H, Liang X, Kapoor A, Peeples ME, Li J. Recombinant measles virus expressing prefusion spike protein stabilized by six rather than two prolines is more efficacious against SARS-CoV-2 infection. J Med Virol 2023; 95:e28687. [PMID: 36941778 DOI: 10.1002/jmv.28687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/23/2023]
Abstract
Measles virus (MeV) has been an excellent vector platform for delivering vaccines against many pathogens because of its high safety and efficacy, and induction of long-lived immunity. Early in the COVID-19 pandemic, a recombinant MeV (rMeV) expressing the prefusion full-length spike protein stabilized by two prolines (TMV-083) was developed and tested in phase 1 and 1/2 clinical trials but was discontinued because of insufficient immunogenicity and a low seroconversion rate in adults. Here, we compared the immunogenicity of rMeV expressing a soluble prefusion spike (preS) protein stabilized by two prolines (rMeV-preS-2P) with a rMeV expressing a soluble preS protein stabilized by six prolines (rMeV-preS-6P). We found that rMeV-preS-6P expressed approximately five times more preS than rMeV-preS-2P in cell culture. Importantly, rMeV-preS-6P induced 30-60 and six times more serum immunoglobulin G and neutralizing antibody than rMeV-preS-2P, respectively, in IFNAR-/- mice. IFNAR-/- mice immunized with rMeV-preS-6P were completely protected from challenge with a mouse-adapted SARS-CoV-2, whereas those immunized with rMeV-preS-2P were partially protected. In addition, hamsters immunized with rMeV-preS-6P were completely protected from the challenge with a Delta variant of SARS-CoV-2. Our results demonstrate that rMeV-preS-6P is significantly more efficacious than rMeV-preS-2P, highlighting the value of using preS-6P as the antigen for developing vaccines against SARS-CoV-2.
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Affiliation(s)
- Yuexiu Zhang
- Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio, USA
| | - Mijia Lu
- Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio, USA
| | - Ilada Thongpan
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Jiayu Xu
- Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio, USA
| | - Mahesh Kc
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Piyush Dravid
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Sheetal Trivedi
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Himanshu Sharma
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Xueya Liang
- Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio, USA
| | - Amit Kapoor
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
- Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, Ohio, USA
- Infectious Disease Institute, The Ohio State University, Columbus, Ohio, USA
| | - Mark E Peeples
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
- Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, Ohio, USA
- Infectious Disease Institute, The Ohio State University, Columbus, Ohio, USA
| | - Jianrong Li
- Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio, USA
- Infectious Disease Institute, The Ohio State University, Columbus, Ohio, USA
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9
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He L, Zhong J, Li G, Lin Z, Zhao P, Yang C, Wang H, Zhang Y, Yang X, Wang Z. Development of SARS-CoV-2 animal vaccines using a stable and efficient NDV expression system. J Med Virol 2023; 95:e28237. [PMID: 36258299 PMCID: PMC9874532 DOI: 10.1002/jmv.28237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/24/2022] [Accepted: 10/16/2022] [Indexed: 01/27/2023]
Abstract
With the continuation of the coronavirus disease 2019 pandemic and the emergence of new severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) variants, the control of the spread of the virus remains urgent. Various animals, including cats, ferrets, hamsters, nonhuman primates, minks, tree shrews, fruit bats, and rabbits, are susceptible to SARS-CoV-2 infection naturally or experimentally. Therefore, to avoid animals from becoming mixing vessels of the virus, vaccination of animals should be considered. In the present study, we report the establishment of an efficient and stable system using Newcastle disease virus (NDV) as a vector to express SARS-CoV-2 spike protein/subunit for the rapid generation of vaccines against SARS-CoV-2 in animals. Our data showed that the S and S1 protein was sufficiently expressed in rNDV-S and rNDV-S1-infected cells, respectively. The S protein was incorporated into and displayed on the surface of rNDV-S viral particles. Intramuscular immunization with rNDV-S was found to induce the highest level of binding and neutralizing antibodies, as well as strong S-specific T-cell response in mice. Intranasal immunization with rNDV-S1 provoked a robust T-cell response but barely any detectable antibodies. Overall, the NDV-vectored vaccine candidates were able to induce profound humoral and cellular immunity, which will provide a good system for developing vaccines targeting both T-cell and antibody responses.
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Affiliation(s)
- Lei He
- College of Animal Science and Technology, Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and ControlHenan University of Science and TechnologyHenanLuoyangChina
| | - Jiaying Zhong
- State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
| | - Guichang Li
- State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
| | - Zhengfang Lin
- State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
| | - Peijing Zhao
- Division of MicrobiologyGuangdong Huawei Testing Co., Ltd.GuangzhouChina
| | - Chuhua Yang
- Division of MicrobiologyGuangdong Huawei Testing Co., Ltd.GuangzhouChina
| | - Hairong Wang
- College of Animal Science and Technology, Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and ControlHenan University of Science and TechnologyHenanLuoyangChina
| | - Yuhao Zhang
- College of Animal Science and Technology, Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and ControlHenan University of Science and TechnologyHenanLuoyangChina
| | - Xiaoyun Yang
- State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina,Guangzhou LaboratoryGuangzhouChina
| | - Zhongfang Wang
- State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina,Guangzhou LaboratoryGuangzhouChina
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10
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Chavda VP, Bezbaruah R, Deka K, Nongrang L, Kalita T. The Delta and Omicron Variants of SARS-CoV-2: What We Know So Far. Vaccines (Basel) 2022; 10:1926. [PMID: 36423021 PMCID: PMC9698608 DOI: 10.3390/vaccines10111926] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 07/30/2023] Open
Abstract
The world has not yet completely overcome the fear of the havoc brought by SARS-CoV-2. The virus has undergone several mutations since its initial appearance in China in December 2019. Several variations (i.e., B.1.616.1 (Kappa variant), B.1.617.2 (Delta variant), B.1.617.3, and BA.2.75 (Omicron variant)) have emerged throughout the pandemic, altering the virus's capacity to spread, risk profile, and even symptoms. Humanity faces a serious threat as long as the virus keeps adapting and changing its fundamental function to evade the immune system. The Delta variant has two escape alterations, E484Q and L452R, as well as other mutations; the most notable of these is P681R, which is expected to boost infectivity, whereas the Omicron has about 60 mutations with certain deletions and insertions. The Delta variant is 40-60% more contagious in comparison to the Alpha variant. Additionally, the AY.1 lineage, also known as the "Delta plus" variant, surfaced as a result of a mutation in the Delta variant, which was one of the causes of the life-threatening second wave of coronavirus disease 2019 (COVID-19). Nevertheless, the recent Omicron variants represent a reminder that the COVID-19 epidemic is far from ending. The wave has sparked a fervor of investigation on why the variant initially appeared to propagate so much more rapidly than the other three variants of concerns (VOCs), whether it is more threatening in those other ways, and how its type of mutations, which induce minor changes in its proteins, can wreck trouble. This review sheds light on the pathogenicity, mutations, treatments, and impact on the vaccine efficacy of the Delta and Omicron variants of SARS-CoV-2.
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Affiliation(s)
- Vivek P. Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, L M College of Pharmacy, Ahmedabad 380008, Gujarat, India
| | - Rajashri Bezbaruah
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh 786004, Assam, India
| | - Kangkan Deka
- NETES Institute of Pharmaceutical Science, Mirza, Guwahati 781125, Assam, India
| | - Lawandashisha Nongrang
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh 786004, Assam, India
| | - Tutumoni Kalita
- Girijananda Chowdhury Institute of Pharmaceutical Science, Azara, Guwahati 781017, Assam, India
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11
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García-Sastre A. Mucosal delivery of RNA vaccines by Newcastle disease virus vectors. Curr Res Immunol 2022; 3:234-238. [PMID: 36245642 PMCID: PMC9552541 DOI: 10.1016/j.crimmu.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/04/2022] [Indexed: 10/31/2022] Open
Abstract
The rapid evolution of SARS-CoV-2 since its pandemic outbreak has underscored the need for improved SARS-CoV-2 vaccines that efficiently reduce not only hospitalizations and deaths, but also infections and transmission. This might be achieved by a new generation of intranasally administered SARS-CoV-2 vaccines to stimulate protective mucosal immunity. Among all different approaches, preclinical and clinical information using Newcastle Disease Virus (NDV)-vectors expressing S of SARS-CoV2 as a COVID-19 vaccine show the potential of this vaccine platform as an affordable, highly immunogenic, safe strategy to intranasally vaccinate humans against SARS-CoV-2 and other infectious diseases. These vaccine vectors consist on the use of a harmless avian negative strand RNA virus to deliver intranasally a self-replicating RNA expressing the vaccine antigen in the cells of the respiratory mucosa. The vector also incorporates the antigen in the virus particle used for RNA delivery, thus combining the properties of nanoparticle-based and RNA-based vaccines. Other advantages of NDV-based vectors include the worldwide availability of manufacturing facilities for their production and their stability at non-freezing temperatures. While phase 3 clinical studies to evaluate efficacy are still pending, phase 1 and 2 clinical studies have demonstrated the safety and immunogenicity of NDV-S vaccines against SARS-CoV-2.
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Affiliation(s)
- Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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12
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Lu M, Chamblee M, Zhang Y, Ye C, Dravid P, Park JG, Mahesh KC, Trivedi S, Murthy S, Sharma H, Cassady C, Chaiwatpongsakorn S, Liang X, Yount JS, Boyaka PN, Peeples ME, Martinez-Sobrido L, Kapoor A, Li J. SARS-CoV-2 prefusion spike protein stabilized by six rather than two prolines is more potent for inducing antibodies that neutralize viral variants of concern. Proc Natl Acad Sci U S A 2022; 119:e2110105119. [PMID: 35994646 PMCID: PMC9436349 DOI: 10.1073/pnas.2110105119] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/11/2022] [Indexed: 11/18/2022] Open
Abstract
The spike (S) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the main target for neutralizing antibodies (NAbs). The S protein trimer is anchored in the virion membrane in its prefusion (preS) but metastable form. The preS protein has been stabilized by introducing two or six proline substitutions, to generate stabilized, soluble 2P or HexaPro (6P) preS proteins. Currently, it is not known which form is the most immunogenic. Here, we generated recombinant vesicular stomatitis virus (rVSV) expressing preS-2P, preS-HexaPro, and native full-length S, and compared their immunogenicity in mice and hamsters. The rVSV-preS-HexaPro produced and secreted significantly more preS protein compared to rVSV-preS-2P. Importantly, rVSV-preS-HexaPro triggered significantly more preS-specific serum IgG antibody than rVSV-preS-2P in both mice and hamsters. Antibodies induced by preS-HexaPro neutralized the B.1.1.7, B.1.351, P.1, B.1.427, and B.1.617.2 variants approximately two to four times better than those induced by preS-2P. Furthermore, preS-HexaPro induced a more robust Th1-biased cellular immune response than preS-2P. A single dose (104 pfu) immunization with rVSV-preS-HexaPro and rVSV-preS-2P provided complete protection against challenge with mouse-adapted SARS-CoV-2 and B.1.617.2 variant, whereas rVSV-S only conferred partial protection. When the immunization dose was lowered to 103 pfu, rVSV-preS-HexaPro induced two- to sixfold higher antibody responses than rVSV-preS-2P in hamsters. In addition, rVSV-preS-HexaPro conferred 70% protection against lung infection whereas only 30% protection was observed in the rVSV-preS-2P. Collectively, our data demonstrate that both preS-2P and preS-HexaPro are highly efficacious but preS-HexaPro is more immunogenic and protective, highlighting the advantages of using preS-HexaPro in the next generation of SARS-CoV-2 vaccines.
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Affiliation(s)
- Mijia Lu
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, 43210
| | - Michelle Chamblee
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, 43210
| | - Yuexiu Zhang
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, 43210
| | - Chengjin Ye
- Texas Biomedical Research Institute, San Antonio, TX, 78227
| | - Piyush Dravid
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
| | - Jun-Gyu Park
- Texas Biomedical Research Institute, San Antonio, TX, 78227
| | - KC Mahesh
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
| | - Sheetal Trivedi
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
| | - Satyapramod Murthy
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
| | - Himanshu Sharma
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
| | - Cole Cassady
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
| | - Supranee Chaiwatpongsakorn
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
| | - Xueya Liang
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, 43210
| | - Jacob S. Yount
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH, 43210
- Infectious Disease Institute, The Ohio State University, Columbus, OH, 43210
| | - Prosper N. Boyaka
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, 43210
- Infectious Disease Institute, The Ohio State University, Columbus, OH, 43210
| | - Mark E. Peeples
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
- Infectious Disease Institute, The Ohio State University, Columbus, OH, 43210
- Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, OH, 43210
| | | | - Amit Kapoor
- Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, 43205
- Infectious Disease Institute, The Ohio State University, Columbus, OH, 43210
- Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, OH, 43210
| | - Jianrong Li
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, 43210
- Infectious Disease Institute, The Ohio State University, Columbus, OH, 43210
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13
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González-Domínguez I, Martínez JL, Slamanig S, Lemus N, Liu Y, Lai TY, Carreño JM, Singh G, Singh G, Schotsaert M, Mena I, McCroskery S, Coughlan L, Krammer F, García-Sastre A, Palese P, Sun W. Trivalent NDV-HXP-S Vaccine Protects against Phylogenetically Distant SARS-CoV-2 Variants of Concern in Mice. Microbiol Spectr 2022;:e0153822. [PMID: 35658571 DOI: 10.1128/spectrum.01538-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Equitable access to vaccines is necessary to limit the global impact of the coronavirus disease 2019 (COVID-19) pandemic and the emergence of new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants. In previous studies, we described the development of a low-cost vaccine based on a Newcastle Disease virus (NDV) expressing the prefusion-stabilized spike protein from SARS-CoV-2, named NDV-HXP-S. Here, we present the development of next-generation NDV-HXP-S variant vaccines, which express the stabilized spike protein of the Beta, Gamma, and Delta variants of concerns (VOC). Combinations of variant vaccines in bivalent, trivalent, and tetravalent formulations were tested for immunogenicity and protection in mice. We show that the trivalent preparation, composed of the ancestral Wuhan, Beta, and Delta vaccines, substantially increases the levels of protection and of cross-neutralizing antibodies against mismatched, phylogenetically distant variants, including the currently circulating Omicron variant. IMPORTANCE This manuscript describes an extended work on the Newcastle disease virus (NDV)-based vaccine focusing on multivalent formulations of NDV vectors expressing different prefusion-stabilized versions of the spike proteins of different SARS-CoV-2 variants of concern (VOC). We demonstrate here that this low-cost NDV platform can be easily adapted to construct vaccines against SARS-CoV-2 variants. Importantly, we show that the trivalent preparation, composed of the ancestral Wuhan, Beta, and Delta vaccines, substantially increases the levels of protection and of cross-neutralizing antibodies against mismatched, phylogenetically distant variants, including the currently circulating Omicron variant. We believe that these findings will help to guide efforts for pandemic preparedness against new variants in the future.
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