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Jiang H, Li W, Zhou X, Zhang J, Li J. Crystal structures of coronaviral main proteases in complex with the non-covalent inhibitor X77. Int J Biol Macromol 2024; 276:133706. [PMID: 38981557 DOI: 10.1016/j.ijbiomac.2024.133706] [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: 05/17/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/11/2024]
Abstract
Main proteases (Mpros) are a class of conserved cysteine hydrolases among coronaviruses and play a crucial role in viral replication. Therefore, Mpros are ideal targets for the development of pan-coronavirus drugs. X77, previously developed against SARS-CoV Mpro, was repurposed as a non-covalent tight binder inhibitor against SARS-CoV-2 Mpro during COVID-19 pandemic. Many novel inhibitors with favorable efficacy have been discovered using X77 as a reference, suggesting that X77 could be a valuable scaffold for drug design. However, the broad-spectrum performance of X77 and underlying mechanism remain less understood. Here, we reported the crystal structures of Mpros from SARS-CoV-2, SARS-CoV, and MERS-CoV, and several Mpro mutants from SARS-CoV-2 variants bound to X77. A detailed analysis of these structures revealed key structural determinants essential for interaction and elucidated the binding modes of X77 with different coronaviral Mpros. The potencies of X77 against these investigated Mpros were further evaluated through molecular dynamic simulation and binding free energy calculation. These data provide molecular insights into broad-spectrum inhibition against coronaviral Mpros by X77 and the similarities and differences of X77 when bound to various Mpros, which will promote X77-based design of novel antivirals with broad-spectrum efficacy against different coronaviruses and SARS-CoV-2 variants.
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Affiliation(s)
- Haihai Jiang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, China
| | - Wenwen Li
- College of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, China
| | - Xuelan Zhou
- College of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, China
| | - Jin Zhang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, China
| | - Jian Li
- College of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, China.
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2
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Eliadis P, Mais A, Papazisis A, Loxa EK, Dimitriadis A, Sarrigeorgiou I, Backovic M, Agallou M, Zouridakis M, Karagouni E, Lazaridis K, Mamalaki A, Lymberi P. Novel Competitive ELISA Utilizing Trimeric Spike Protein of SARS-CoV-2, Could Identify More Than RBD-RBM Specific Neutralizing Antibodies in Hybrid Sera. Vaccines (Basel) 2024; 12:914. [PMID: 39204038 PMCID: PMC11359269 DOI: 10.3390/vaccines12080914] [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: 06/17/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 09/03/2024] Open
Abstract
Since the initiation of the COVID-19 pandemic, there has been a need for the development of diagnostic methods to determine the factors implicated in mounting an immune response against the virus. The most promising indicator has been suggested to be neutralizing antibodies (nAbs), which mainly block the interaction between the Spike protein (S) of SARS-CoV-2 and the host entry receptor ACE2. In this study, we aimed to develop and optimize conditions of a competitive ELISA to measure serum neutralizing titer, using a recombinant trimeric Spike protein modified to have six additional proline residues (S(6P)-HexaPro) and h-ACE2. The results of our surrogate Virus Neutralizing Assay (sVNA) were compared against the commercial sVNT (cPass, Nanjing GenScript Biotech Co., Nanjing City, China), using serially diluted sera from vaccinees, and a high correlation of ID50-90 titer values was observed between the two assays. Interestingly, when we tested and compared the neutralizing activity of sera from eleven fully vaccinated individuals who subsequently contracted COVID-19 (hybrid sera), we recorded a moderate correlation between the two assays, while higher sera neutralizing titers were measured with sVNA. Our data indicated that the sVNA, as a more biologically relevant model assay that paired the trimeric S(6P) with ACE2, instead of the isolated RBD-ACE2 pairing cPass test, could identify nAbs other than the RBD-RBM specific ones.
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Affiliation(s)
- Petros Eliadis
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.P.); (E.K.L.); (I.S.); (K.L.)
- Biotechnology Unit, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.D.); (A.M.)
| | - Annie Mais
- Laboratory of Molecular Biology and Immunobiotechnology, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece;
| | - Alexandros Papazisis
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.P.); (E.K.L.); (I.S.); (K.L.)
| | - Eleni K. Loxa
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.P.); (E.K.L.); (I.S.); (K.L.)
| | - Alexios Dimitriadis
- Biotechnology Unit, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.D.); (A.M.)
| | - Ioannis Sarrigeorgiou
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.P.); (E.K.L.); (I.S.); (K.L.)
| | - Marija Backovic
- Institut Pasteur, Unité de Virologie Structurale, Université Paris Cité, CNRS-UMR3569, 75724 Paris, France;
| | - Maria Agallou
- Immunology of Infection Laboratory, Microbiology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (M.A.); (E.K.)
| | - Marios Zouridakis
- Structural Neurobiology Research Group, Laboratory of Molecular Neurobiology and Immunology, Department of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece;
| | - Evdokia Karagouni
- Immunology of Infection Laboratory, Microbiology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (M.A.); (E.K.)
| | - Konstantinos Lazaridis
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.P.); (E.K.L.); (I.S.); (K.L.)
- Biotechnology Unit, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.D.); (A.M.)
| | - Avgi Mamalaki
- Biotechnology Unit, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.D.); (A.M.)
- Laboratory of Molecular Biology and Immunobiotechnology, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece;
| | - Peggy Lymberi
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, 11521 Athens, Greece; (A.P.); (E.K.L.); (I.S.); (K.L.)
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3
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Cai Z, Kalkeri R, Wang M, Haner B, Dent D, Osman B, Skonieczny P, Ross J, Feng SL, Cai R, Zhu M, Cloney-Clark S, Plested JS. Validation of a Pseudovirus Neutralization Assay for Severe Acute Respiratory Syndrome Coronavirus 2: A High-Throughput Method for the Evaluation of Vaccine Immunogenicity. Microorganisms 2024; 12:1201. [PMID: 38930583 PMCID: PMC11205394 DOI: 10.3390/microorganisms12061201] [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: 05/09/2024] [Revised: 05/31/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
The evaluation of coronavirus disease 2019 (COVID-19) vaccine immunogenicity remains essential as the severe acute respiratory syncytial virus 2 (SARS-CoV-2) pandemic continues to evolve and as additional variants emerge. Neutralizing antibodies are a known correlate of protection for SARS-CoV-2 vaccines. A pseudovirus neutralization (PNT) assay was developed and validated at Novavax Clinical Immunology Laboratories to allow for the detection of neutralizing antibodies in vaccine clinical trial sera. The PNT assay was precise, accurate, linear, and specific in measuring SARS-CoV-2 neutralization titers in human serum for ancestral strain and the Omicron subvariants BA.5 and XBB.1.5, with an overall geometric coefficient of variation of ≤43.4%, a percent relative bias within the expected range of -60% to 150%, and a linearity value of R2 > 0.98 for all three strains. This pseudovirus assay will be useful for the analysis of vaccine clinical trial samples to assess vaccine immunogenicity. Future work will focus on modifying the assay for emerging variants, including XBB.1.16, EG.5.1, BA.2.86, and any other variants that emerge in the ongoing pandemic.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Mingzhu Zhu
- Novavax, Inc., Gaithersburg, MD 20878, USA; (Z.C.); (R.K.); (M.W.); (B.H.); (D.D.); (B.O.); (P.S.); (J.R.); (S.-L.F.); (R.C.); (S.C.-C.)
| | | | - Joyce S. Plested
- Novavax, Inc., Gaithersburg, MD 20878, USA; (Z.C.); (R.K.); (M.W.); (B.H.); (D.D.); (B.O.); (P.S.); (J.R.); (S.-L.F.); (R.C.); (S.C.-C.)
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4
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Cui L, Li T, Xue W, Zhang S, Wang H, Liu H, Gu Y, Xia N, Li S. Comprehensive Overview of Broadly Neutralizing Antibodies against SARS-CoV-2 Variants. Viruses 2024; 16:900. [PMID: 38932192 PMCID: PMC11209230 DOI: 10.3390/v16060900] [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: 04/08/2024] [Revised: 05/09/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Currently, SARS-CoV-2 has evolved into various variants, including the numerous highly mutated Omicron sub-lineages, significantly increasing immune evasion ability. The development raises concerns about the possibly diminished effectiveness of available vaccines and antibody-based therapeutics. Here, we describe those representative categories of broadly neutralizing antibodies (bnAbs) that retain prominent effectiveness against emerging variants including Omicron sub-lineages. The molecular characteristics, epitope conservation, and resistance mechanisms of these antibodies are further detailed, aiming to offer suggestion or direction for the development of therapeutic antibodies, and facilitate the design of vaccines with broad-spectrum potential.
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Affiliation(s)
- Lingyan Cui
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Tingting Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Wenhui Xue
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Sibo Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Hong Wang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Hongjing Liu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Ying Gu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Ningshao Xia
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
| | - Shaowei Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China (N.X.)
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Collaborative Innovation Center of Biologic Products, National Innovation Platform for Industry-Education Integration in Vaccine Research, The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen 361102, China
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5
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Li P, Huang L, Han R, Tang M, Fei G, Zeng D, Wang R. Safety and efficacy of Paxlovid in the treatment of adults with mild to moderate COVID-19 during the omicron epidemic: a multicentre study from China. Expert Rev Anti Infect Ther 2024; 22:469-477. [PMID: 38300126 DOI: 10.1080/14787210.2024.2309998] [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: 10/15/2023] [Accepted: 12/30/2023] [Indexed: 02/02/2024]
Abstract
BACKGROUND Since December 2022, the Omicron variant has led to a widespread pandemic in China. The study was to explore the safety and effectiveness of Paxlovid for the treatment of coronavirus disease 2019 (COVID-19). RESEARCH DESIGN AND METHODS We included patients at risk of developing severe COVID-19, all of whom exhibited mild to moderate symptoms and were admitted to three hospital centers. Patients were divided into two groups: one received Paxlovid alongside standard care, while the other was given only standard care. We compared clinical characteristics, hospital stay duration, and clinical outcomes between two groups. Multi-factor analysis determined the independent risk factors influencing the duration of hospitalization and disease progression. RESULTS In the study, those treated with Paxlovid shorter hospital stays than those in the control group (p < 0.001). Multivariate analysis indicated that the absence of Paxlovid treatment was a distinct risk factor for hospitalizations lasting over 7 days (OR: 4.983, 95% CI: 3.828-6.486, p < 0.001) and 14 days (OR: 2.940, 95% CI: 2.402-3.597, p < 0.001). CONCLUSION Amid the Omicron outbreak, Paxlovid has proven to be a safe and effective treatment for reducing hospitalization durations for patients with mild to moderate COVID-19.
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Affiliation(s)
- Pulin Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ling Huang
- Department of Infectious Disease, Hefei Second People's Hospital, Hefei, China
| | - Rui Han
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Min Tang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Guanghe Fei
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Daxiong Zeng
- Department of Pulmonary and Critical Care Medicine, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou, China
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ran Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei, China
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6
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Chang YH, Hsu MF, Chen WN, Wu MH, Kong WL, Lu MYJ, Huang CH, Chang FJ, Chang LY, Tsai HY, Tung CP, Yu JH, Kuo Y, Chou YC, Bai LY, Chang YC, Chen AY, Chen CC, Chen YH, Liao CC, Chang CS, Liang JJ, Lin YL, Angata T, Hsu STD, Lin KI. Functional and structural investigation of a broadly neutralizing SARS-CoV-2 antibody. JCI Insight 2024; 9:e179726. [PMID: 38775156 PMCID: PMC11141937 DOI: 10.1172/jci.insight.179726] [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: 01/24/2024] [Accepted: 04/12/2024] [Indexed: 06/02/2024] Open
Abstract
Since its emergence, SARS-CoV-2 has been continuously evolving, hampering the effectiveness of current vaccines against COVID-19. mAbs can be used to treat patients at risk of severe COVID-19. Thus, the development of broadly protective mAbs and an understanding of the underlying protective mechanisms are of great importance. Here, we isolated mAbs from donors with breakthrough infection with Omicron subvariants using a single-B cell screening platform. We identified a mAb, O5C2, which possesses broad-spectrum neutralization and antibody-dependent cell-mediated cytotoxic activities against SARS-CoV-2 variants, including EG.5.1. Single-particle analysis by cryo-electron microscopy revealed that O5C2 targeted an unusually large epitope within the receptor-binding domain of spike protein that overlapped with the angiotensin-converting enzyme 2 binding interface. Furthermore, O5C2 effectively protected against BA.5 Omicron infection in vivo by mediating changes in transcriptomes enriched in genes involved in apoptosis and interferon responses. Our findings provide insights into the development of pan-protective mAbs against SARS-CoV-2.
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Affiliation(s)
- Yi-Hsuan Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | | | - Wei-Nan Chen
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | | | - Wye-Lup Kong
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | - Mei-Yeh Jade Lu
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | - Chih-Heng Huang
- Institute of Preventive Medicine
- Graduate Institute of Medical Sciences, and
- Department of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Fang-Ju Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | | | - Ho-Yang Tsai
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Chao-Ping Tung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Jou-Hui Yu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yali Kuo
- Biomedical Translation Research Center (BioTReC)
| | - Yu-Chi Chou
- Biomedical Translation Research Center (BioTReC)
| | - Li-Yang Bai
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yuan-Chih Chang
- Institute of Biological Chemistry and
- Academia Sinica Cryo-EM Center, and
| | - An-Yu Chen
- Institute of Preventive Medicine
- Graduate Institute of Medical Sciences, and
| | - Cheng-Cheung Chen
- Institute of Preventive Medicine
- Graduate Institute of Medical Sciences, and
| | - Yi-Hua Chen
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | | | | | - Jian-Jong Liang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yi-Ling Lin
- Biomedical Translation Research Center (BioTReC)
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Takashi Angata
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
- Institute of Biological Chemistry and
| | - Shang-Te Danny Hsu
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
- Institute of Biological Chemistry and
- International Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKC M2, ) Hiroshima University, Hiroshima, Japan
| | - Kuo-I Lin
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- Biomedical Translation Research Center (BioTReC)
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7
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Girl P, von Buttlar H, Mantel E, Antwerpen MH, Wölfel R, Müller K. Comparative Analysis of Vaccine-Induced Neutralizing Antibodies against the Alpha, Beta, Delta, and Omicron Variants of SARS-CoV-2. Vaccines (Basel) 2024; 12:515. [PMID: 38793766 PMCID: PMC11126034 DOI: 10.3390/vaccines12050515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
The SARS-CoV-2 virus has infected more than 660 million people and caused nearly seven million deaths worldwide. During the pandemic, a number of SARS-CoV-2 vaccines were rapidly developed, and several are currently licensed for use in Europe. However, the optimization of vaccination regimens is still ongoing, particularly with regard to booster vaccinations. At the same time, the emergence of new virus variants poses an ongoing challenge to vaccine efficacy. In this study, we focused on a comparative analysis of the neutralization capacity of vaccine-induced antibodies against four different variants of concern (i.e., Alpha, Beta, Delta, and Omicron) after two and three doses of COVID-19 vaccine. We were able to show that both two (prime/boost) and three (prime/boost/boost) vaccinations elicit highly variable levels of neutralizing antibodies. In addition, we did not observe a significant difference in antibody levels after two and three vaccinations. We also observed a significant decrease in the neutralization susceptibility of all but one SARS-CoV-2 variants to vaccine-induced antibodies. In contrast, a SARS-CoV-2 breakthrough infection between the second and third vaccination results in overall higher levels of neutralizing antibodies with a concomitant improved neutralization of all virus variants. Titer levels remained highly variable across the cohort but a common trend was observed. This may be due to the fact that at the time of this study, all licensed vaccines were still based exclusively on wild-type SARS-CoV-2, whereas infections were caused by virus variants. Overall, our data demonstrate the importance of (booster) vaccinations, but at the same time emphasize the need for the continued adaptation of vaccines to induce a protective immune response against virus variants in order to be prepared for future (seasonal) SARS-CoV-2 outbreaks.
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Affiliation(s)
- Philipp Girl
- Bundeswehr Institute of Microbiology, 80937 Munich, Germany; (P.G.); (H.v.B.); (E.M.); (M.H.A.); (R.W.)
- German Centre for Infection Research (DZIF), Partner Site Munich, 80937 Munich, Germany
- Central Institute of the Bundeswehr Medical Service Munich, 85784 Garching, Germany
- Institute for Infectious Diseases and Zoonoses, Department of Veterinary Sciences, Faculty of Veterinary Medicine, LMU Munich, 80539 Munich, Germany
| | - Heiner von Buttlar
- Bundeswehr Institute of Microbiology, 80937 Munich, Germany; (P.G.); (H.v.B.); (E.M.); (M.H.A.); (R.W.)
- German Centre for Infection Research (DZIF), Partner Site Munich, 80937 Munich, Germany
| | - Enrico Mantel
- Bundeswehr Institute of Microbiology, 80937 Munich, Germany; (P.G.); (H.v.B.); (E.M.); (M.H.A.); (R.W.)
- German Centre for Infection Research (DZIF), Partner Site Munich, 80937 Munich, Germany
| | - Markus H. Antwerpen
- Bundeswehr Institute of Microbiology, 80937 Munich, Germany; (P.G.); (H.v.B.); (E.M.); (M.H.A.); (R.W.)
- German Centre for Infection Research (DZIF), Partner Site Munich, 80937 Munich, Germany
| | - Roman Wölfel
- Bundeswehr Institute of Microbiology, 80937 Munich, Germany; (P.G.); (H.v.B.); (E.M.); (M.H.A.); (R.W.)
- German Centre for Infection Research (DZIF), Partner Site Munich, 80937 Munich, Germany
| | - Katharina Müller
- Bundeswehr Institute of Microbiology, 80937 Munich, Germany; (P.G.); (H.v.B.); (E.M.); (M.H.A.); (R.W.)
- German Centre for Infection Research (DZIF), Partner Site Munich, 80937 Munich, Germany
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8
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Qian J, Zhang S, Wang F, Li J, Zhang J. What makes SARS-CoV-2 unique? Focusing on the spike protein. Cell Biol Int 2024; 48:404-430. [PMID: 38263600 DOI: 10.1002/cbin.12130] [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: 10/09/2023] [Revised: 12/25/2023] [Accepted: 01/02/2024] [Indexed: 01/25/2024]
Abstract
Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) seriously threatens public health and safety. Genetic variants determine the expression of SARS-CoV-2 structural proteins, which are associated with enhanced transmissibility, enhanced virulence, and immune escape. Vaccination is encouraged as a public health intervention, and different types of vaccines are used worldwide. However, new variants continue to emerge, especially the Omicron complex, and the neutralizing antibody responses are diminished significantly. In this review, we outlined the uniqueness of SARS-CoV-2 from three perspectives. First, we described the detailed structure of the spike (S) protein, which is highly susceptible to mutations and contributes to the distinct infection cycle of the virus. Second, we systematically summarized the immunoglobulin G epitopes of SARS-CoV-2 and highlighted the central role of the nonconserved regions of the S protein in adaptive immune escape. Third, we provided an overview of the vaccines targeting the S protein and discussed the impact of the nonconserved regions on vaccine effectiveness. The characterization and identification of the structure and genomic organization of SARS-CoV-2 will help elucidate its mechanisms of viral mutation and infection and provide a basis for the selection of optimal treatments. The leaps in advancements regarding improved diagnosis, targeted vaccines and therapeutic remedies provide sound evidence showing that scientific understanding, research, and technology evolved at the pace of the pandemic.
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Affiliation(s)
- Jingbo Qian
- Department of Laboratory Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
- Branch of National Clinical Research Center for Laboratory Medicine, Nanjing, China
| | - Shichang Zhang
- Department of Clinical Laboratory Medicine, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Fang Wang
- Department of Laboratory Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
- Branch of National Clinical Research Center for Laboratory Medicine, Nanjing, China
| | - Jinming Li
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- National Center for Clinical Laboratories, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, China
| | - Jiexin Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
- Branch of National Clinical Research Center for Laboratory Medicine, Nanjing, China
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9
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Winiger RR, Perez L. Therapeutic antibodies and alternative formats against SARS-CoV-2. Antiviral Res 2024; 223:105820. [PMID: 38307147 DOI: 10.1016/j.antiviral.2024.105820] [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: 10/30/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/04/2024]
Abstract
The COVID-19 pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) heavily burdened the entire world. Despite a prompt generation of vaccines and therapeutics to confront infection, the virus remains a threat. The ancestor viral strain has evolved into several variants of concern, with the Omicron variant now having many distinct sublineages. Consequently, most available antibodies targeting the spike went obsolete and thus new therapies or therapeutic formats are needed. In this review we focus on antibody targets, provide an overview of the therapeutic progress made so far, describe novel formats being explored, and lessons learned from therapeutic antibodies that can enhance pandemic preparedness.
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Affiliation(s)
- Rahel R Winiger
- University of Lausanne (UNIL), Lausanne University Hospital (CHUV), Service of Immunology and Allergy, and Center for Human Immunology Lausanne (CHIL), Switzerland.
| | - Laurent Perez
- University of Lausanne (UNIL), Lausanne University Hospital (CHUV), Service of Immunology and Allergy, and Center for Human Immunology Lausanne (CHIL), Switzerland.
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10
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You C, Jiang S, Ding Y, Ye S, Zou X, Zhang H, Li Z, Chen F, Li Y, Ge X, Guo X. RNA barcode segments for SARS-CoV-2 identification from HCoVs and SARSr-CoV-2 lineages. Virol Sin 2024; 39:156-168. [PMID: 38253258 PMCID: PMC10877444 DOI: 10.1016/j.virs.2024.01.006] [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: 04/08/2023] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the pathogen responsible for coronavirus disease 2019 (COVID-19), continues to evolve, giving rise to more variants and global reinfections. Previous research has demonstrated that barcode segments can effectively and cost-efficiently identify specific species within closely related populations. In this study, we designed and tested RNA barcode segments based on genetic evolutionary relationships to facilitate the efficient and accurate identification of SARS-CoV-2 from extensive virus samples, including human coronaviruses (HCoVs) and SARSr-CoV-2 lineages. Nucleotide sequences sourced from NCBI and GISAID were meticulously selected and curated to construct training sets, encompassing 1733 complete genome sequences of HCoVs and SARSr-CoV-2 lineages. Through genetic-level species testing, we validated the accuracy and reliability of the barcode segments for identifying SARS-CoV-2. Subsequently, 75 main and subordinate species-specific barcode segments for SARS-CoV-2, located in ORF1ab, S, E, ORF7a, and N coding sequences, were intercepted and screened based on single-nucleotide polymorphism sites and weighted scores. Post-testing, these segments exhibited high recall rates (nearly 100%), specificity (almost 30% at the nucleotide level), and precision (100%) performance on identification. They were eventually visualized using one and two-dimensional combined barcodes and deposited in an online database (http://virusbarcodedatabase.top/). The successful integration of barcoding technology in SARS-CoV-2 identification provides valuable insights for future studies involving complete genome sequence polymorphism analysis. Moreover, this cost-effective and efficient identification approach also provides valuable reference for future research endeavors related to virus surveillance.
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Affiliation(s)
- Changqiao You
- College of Biology, Hunan University, Changsha, 410082, China
| | - Shuai Jiang
- College of Biology, Hunan University, Changsha, 410082, China
| | - Yunyun Ding
- College of Biology, Hunan University, Changsha, 410082, China
| | - Shunxing Ye
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaoxiao Zou
- College of Biology, Hunan University, Changsha, 410082, China
| | - Hongming Zhang
- College of Biology, Hunan University, Changsha, 410082, China
| | - Zeqi Li
- College of Biology, Hunan University, Changsha, 410082, China
| | - Fenglin Chen
- College of Biology, Hunan University, Changsha, 410082, China
| | - Yongliang Li
- College of Biology, Hunan University, Changsha, 410082, China.
| | - Xingyi Ge
- College of Biology, Hunan University, Changsha, 410082, China.
| | - Xinhong Guo
- College of Biology, Hunan University, Changsha, 410082, China.
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11
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Wekking D, Senevirathne TH, Pearce JL, Aiello M, Scartozzi M, Lambertini M, De Silva P, Solinas C. The impact of COVID-19 on cancer patients. Cytokine Growth Factor Rev 2024; 75:110-118. [PMID: 38103990 DOI: 10.1016/j.cytogfr.2023.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 11/28/2023] [Indexed: 12/19/2023]
Abstract
The COVID-19 pandemic poses a significant challenge for individuals with compromised immune systems, such as patients with cancer, as they face a heightened susceptibility to severe infections compared to the general population. Such severe infections substantially increase the risk of morbidity and mortality among these patients. Notable risk factors for mortality include advanced age (> 70 years), current or past smoking history, advanced disease stage, the use of cytotoxic chemotherapy, and an Eastern Cooperative Oncology Group (ECOG) score of 2 or higher. Multiple types of vaccines have been developed and implemented, demonstrating remarkable efficacy in preventing infections. However, there have been observable reductions in their ability to elicit an immune response, particularly among individuals with hematological malignancies. The situation becomes more challenging due to the emergence of viral variants of concern (VOCs). Despite the increase in neutralizing antibody levels after vaccination, they remain lower in response to these evolving variants. The need for booster vaccinations has become apparent, particularly for this vulnerable population, due to the suboptimal immune response and waning of immunity post-vaccination. Examining and comprehending how the immune system reacts to various vaccination regimens for SARS-CoV-2 and its VOCs in cancer patients is crucial for designing clinical and public health strategies. This review aims to provide an updated overview of the effectiveness of COVID-19 vaccines in cancer patients, including those undergoing treatments such as hematopoietic stem cell transplantation (HCT) or chimeric antigen receptor (CAR) T cell therapy, by exploring the extent of both humoral and cellular immune responses to COVID-19 vaccination. Furthermore, it outlines risk factors and potential biomarkers that are associated with severe SARS-CoV-2 infection and vaccine responses, and offers suggestions for improving SARS-CoV-2 protection in cancer patients.
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Affiliation(s)
- Demi Wekking
- Amsterdam UMC, Location Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Thilini H Senevirathne
- Faculty of Science, Katholieke Universiteit Leuven, Kasteelpark Arenberg, Leuven, Belgium
| | - Josie L Pearce
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Premedical Program, Cambridge, MA, USA
| | - Marco Aiello
- Medical Oncology Unit A.O.U. Policlinico - Vittorio Emanuele di Catania, Italy
| | - Mario Scartozzi
- Department of Medical Oncology, University of Cagliari, Cagliari, Italy
| | - Matteo Lambertini
- Department of Medical Oncology, U.O.C. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, 16132, Genoa, Italy; Department of Internal Medicine and Medical Specialties (DiMI), School of Medicine, University of Genoa, Genoa, Italy
| | - Pushpamali De Silva
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | - Cinzia Solinas
- Medical Oncology, AOU Cagliari, P.O. Duilio Casula, Monserrato, CA, Italy.
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12
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Torche F, Nobles J. Vaccination, immunity, and the changing impact of COVID-19 on infant health. Proc Natl Acad Sci U S A 2023; 120:e2311573120. [PMID: 38011548 DOI: 10.1073/pnas.2311573120] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 10/19/2023] [Indexed: 11/29/2023] Open
Abstract
In utero exposure to COVID-19 infection may lead to large intergenerational health effects. The impact of infection exposure has likely evolved since the onset of the pandemic as new variants emerge, immunity from prior infection increases, vaccines become available, and vaccine hesitancy persists, such that when infection is experienced is as important as whether it is experienced. We examine the changing impact of COVID-19 infection on preterm birth and the moderating role of vaccination. We offer the first plausibly causal estimate of the impact of maternal COVID-19 infection by using population data with no selectivity, universal information on maternal COVID-19 infection, and linked sibling data. We then assess change in this impact from 2020 to 2023 and evaluate the protective role of COVID-19 vaccination on infant health. We find a substantial adverse effect of prenatal COVID-19 infection on the probability of preterm birth. The impact was large during the first 2 y of the pandemic but had fully disappeared by 2022. The harmful impact of COVID-19 infection disappeared almost a year earlier in zip codes with high vaccination rates, suggesting that vaccines might have prevented thousands of preterm births. The findings highlight the need to monitor the changing consequences of emerging infectious diseases over time and the importance of mitigation strategies to reduce the burden of infection on vulnerable populations.
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Affiliation(s)
- Florencia Torche
- Department of Sociology, Stanford University, Stanford, CA 94305
| | - Jenna Nobles
- Department of Sociology, Center for Demography and Ecology, University of Wisconsin-Madison, Madison, WI 53706
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13
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Wang L, Liu T, Yue H, Zhang J, Sheng Q, Wu L, Wang X, Zhang M, Wang J, Wang J, Yu W. Clinical characteristics and high risk factors of patients with Omicron variant strain infection in Hebei, China. Front Cell Infect Microbiol 2023; 13:1294904. [PMID: 38145047 PMCID: PMC10744887 DOI: 10.3389/fcimb.2023.1294904] [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: 09/15/2023] [Accepted: 11/13/2023] [Indexed: 12/26/2023] Open
Abstract
Objective The Omicron variant has a weaker pathogenicity compared to the Delta variant but is highly transmissible and elderly critically ill patients account for the majority. This study has significant implications for guiding clinical personalized treatment and effectively utilizing healthcare resources. Methods The study focuses on 157 patients infected with the novel coronavirus Omicron variant, from December, 2022, to February, 2023. The objective is to analyze the baseline data, test results, imaging findings and identify risk factors associated with severe illness. Results Among the 157 included patients, there were 55 cases in the non-severe group (all were moderate cases) and 102 cases in the severe group (including severe and critical cases). Infection with the Omicron variant exhibits significant differences between non-severe and severe cases (baseline data, blood routine, coagulation, inflammatory markers, cardiac, liver, kidney functions, Chest CT, VTE score, etc.). A multifactorial logistic regression analysis showed that neutrophil percentage >75%, eosinophil percentage <0.4%, D-dimer >0.55 mg/L, PCT >0.25 ng/mL, LDH >250 U/L, albumin <40 g/L, A/G ratio <1.2, cholinesterase<5100 U/L, uric acid >357 mole/L and blood calcium<2.11 mmol/L were the most likely independent risk factors for severe novel coronavirus infection. Conclusion Advanced age, low oxygenation index, elevated neutrophil percentage, decreased eosinophil percentage, elevated PCT, elevated LDH, decreased albumin, decreased A/G ratio, elevated uric acid, decreased blood calcium, and elevated D-dimer are independent prognostic risk factors for non-severe patients progressing to severe illness. These factors should be closely monitored and actively treated to prevent or minimize the occurrence of severe illness.
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Affiliation(s)
- Lihong Wang
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ting Liu
- Department of Endoscopy Center, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hongjuan Yue
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jiaojiao Zhang
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Qihong Sheng
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ling Wu
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaoyu Wang
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Mei Zhang
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jing Wang
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jia Wang
- Department of Infectious Diseases, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Weifang Yu
- Department of Endoscopy Center, The First Hospital of Hebei Medical University, Shijiazhuang, China
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14
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Cao Q, Ding Y, Xu Y, Li M, Zheng R, Cao Z, Wang W, Bi Y, Ning G, Xu Y, Zhao R. Small-molecule anti-COVID-19 drugs and a focus on China's homegrown mindeudesivir (VV116). Front Med 2023; 17:1068-1079. [PMID: 38165534 DOI: 10.1007/s11684-023-1037-3] [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: 07/05/2023] [Accepted: 10/15/2023] [Indexed: 01/03/2024]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has stimulated tremendous efforts to develop therapeutic agents that target severe acute respiratory syndrome coronavirus 2 to control viral infection. So far, a few small-molecule antiviral drugs, including nirmatrelvir-ritonavir (Paxlovid), remdesivir, and molnupiravir have been marketed for the treatment of COVID-19. Nirmatrelvir-ritonavir has been recommended by the World Health Organization as an early treatment for outpatients with mild-to-moderate COVID-19. However, the existing treatment options have limitations, and effective treatment strategies that are cost-effective and convenient for tackling COVID-19 are still needed. To date, four domestically developed oral anti-COVID-19 drugs have been granted conditional market approval in China. These drugs include azvudine, simnotrelvir-ritonavir (Xiannuoxin), leritrelvir, and mindeudesivir (VV116). Preclinical and clinical studies have explored the efficacy and tolerability of mindeudesivir and supported its early use in mild-to-moderate COVID-19 cases at high risk for progression. In this review, we discuss the most recent findings regarding the pharmacological mechanism and therapeutic effects focusing on mindeudesivir and other small-molecule antiviral agents for COVID-19. These findings will expand our understanding and highlight the potential widespread application of China's homegrown anti-COVID-19 drugs.
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Affiliation(s)
- Qiuyu Cao
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yi Ding
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yu Xu
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Mian Li
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Ruizhi Zheng
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zhujun Cao
- Department of Infectious Disease, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Weiqing Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yufang Bi
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Guang Ning
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai National Clinical Research Center for Metabolic Diseases, State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai National Center for Translational Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yiping Xu
- Clinical Trials Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Ren Zhao
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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15
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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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16
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Huang J, Xia M, Liu R, Wang S, Duan X, Peng J, Li E, Zhou Y, Li C, Zhang Q, Tian J, Wang X, Su Z, Tan J, Peng B, Zhang J, Li J, Dai L, Lei M. Comparative analysis of clinical and immunological profiles across Omicron BA.5.2 subvariants using next-generation sequencing in a Chinese cohort. Front Cell Infect Microbiol 2023; 13:1288914. [PMID: 37965255 PMCID: PMC10642935 DOI: 10.3389/fcimb.2023.1288914] [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: 09/05/2023] [Accepted: 10/17/2023] [Indexed: 11/16/2023] Open
Abstract
Objective The Omicron BA.5.2 variant of SARS-CoV-2 has undergone several evolutionary adaptations, leading to multiple subvariants. Rapid and accurate characterization of these subvariants is essential for effective treatment, particularly in critically ill patients. This study leverages Next-Generation Sequencing (NGS) to elucidate the clinical and immunological features across different Omicron BA.5.2 subvariants. Methods We enrolled 28 patients infected with the Omicron variant, hospitalized in Zhangjiajie People's Hospital, Hunan, China, between January 20, 2023, and March 31, 2023. Throat swabs were collected upon admission for NGS-based identification of Omicron subvariants. Clinical data, including qSOFA scores and key laboratory tests, were collated. A detailed analysis of lymphocyte subsets was conducted to ascertain the extent of immune cell damage and disease severity. Results Patients were infected with various Omicron subvariants, including BA.5.2.48, BA.5.2.49, BA.5.2.6, BF.7.14, DY.1, DY.2, DY.3, and DY.4. Despite having 43 identical mutation sites, each subvariant exhibited unique marker mutations. Critically ill patients demonstrated significant depletion in total lymphocyte count, T cells, CD4, CD8, B cells, and NK cells (P < 0.05). However, there were no significant differences in clinical and immunological markers across the subvariants. Conclusion This study reveals that critically ill patients infected with different Omicron BA.5.2 subvariants experience similar levels of cellular immune dysfunction and inflammatory response. Four mutations - ORF1a:K3353R, ORF1a:L3667F, ORF1b:S997P, S:T883I showed correlation with immunological responses although this conclusion suffers from the small sample size. Our findings underscore the utility of NGS in the comprehensive assessment of infectious diseases, contributing to more effective clinical decision-making.
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Affiliation(s)
- Jianliang Huang
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Mingkai Xia
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | | | | | - Xinyi Duan
- Sanway Clinical Laboratory, Changsha, China
| | - Jiong Peng
- Sanway Clinical Laboratory, Changsha, China
| | - Enping Li
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Yanping Zhou
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Chengyou Li
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Quan Zhang
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Jixian Tian
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Xinjian Wang
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Zhongrui Su
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Jun Tan
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Bo Peng
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Jianhui Zhang
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Jin Li
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
| | - Lizhong Dai
- Sansure Biotech Incorporation, Changsha, China
| | - Mingsheng Lei
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, China
- Zhangjiajie College, Zhangjiajie, China
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17
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Pondé RADA. Physicochemical effects of emerging exchanges on the spike protein's RBM of the SARS-CoV-2 Omicron subvariants BA.1-BA.5 and its influence on the biological properties and attributes developed by these subvariants. Virology 2023; 587:109850. [PMID: 37562286 DOI: 10.1016/j.virol.2023.109850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/13/2023] [Accepted: 07/21/2023] [Indexed: 08/12/2023]
Abstract
Emerging in South Africa, SARS-CoV-2 Omicron variant was marked by the expression of an exaggerated number of mutations throughout its genome and by the emergence of subvariants, whose attributes developed by them have been associated with amino acid exchanges that occur mainly in the RBM region of the spike protein. The RBM comprises a region within the RBD and is directly involved in the SARS-CoV-2 spike protein interaction with the host cell ACE2 receptor, during the infection mechanism and viral transmission. Defined as the region from aa 437 to aa 508, there are several residues in certain positions that interact directly with the human ACE-2 receptor during these processes. The occurrence of amino acid exchanges in these positions causes physicochemical alterations in the SARS-CoV-2 spike protein, which confer additional advantages and attributes to the agent. In addition, these exchanges serve as a basis for the characterization of new variants and subvariants of SARS-CoV-2. In this review, the amino acid exchanges that have occurred in the RBM of the subvariants BA.1 to BA.5 of SARS-CoV-2 that emerged from the Omicron are described. The physicochemical effects caused by them on spike protein are also described, as well as their influence on the biological properties and attributes developed by the subvariants BA.1, BA.2, BA.3, BA.4 and BA.5.
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Affiliation(s)
- Robério Amorim de Almeida Pondé
- Secretaria de Estado da Saúde -SES/Superintendência de Vigilância em Saúde-SUVISA/GO, Gerência de Vigilância Epidemiológica de Doenças Transmissíveis-GVEDT/Coordenação de Análises e Pesquisas-CAP, Goiânia, Goiás, Brazil; Laboratory of Human Virology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil.
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Vilibic-Cavlek T, Stevanovic V, Kovac S, Borko E, Bogdanic M, Miletic G, Hruskar Z, Ferenc T, Coric I, Vujica Ferenc M, Milasincic L, Antolasic L, Barbic L. Neutralizing Activity of SARS-CoV-2 Antibodies in Patients with COVID-19 and Vaccinated Individuals. Antibodies (Basel) 2023; 12:61. [PMID: 37873858 PMCID: PMC10594469 DOI: 10.3390/antib12040061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND Serological diagnosis of COVID-19 is complex due to the emergence of different SARS-CoV-2 variants. METHODS 164 serum samples from (I) patients who recovered from COVID-19 (n = 62) as well as (II) vaccinated individuals (n = 52) and (III) vaccinated individuals who were infected with different SARS-CoV-2 variants after vaccination (n = 50) were included. All samples were tested using EIA (binding antibodies) and a virus neutralization test (VNT) using the Wuhan strain (NT antibodies). Group III was further tested with a VNT using the Alpha/Delta/Omicron strains. RESULTS The highest antibody index (AI) was observed in vaccinated individuals infected with COVID-19 (median AI = 50, IQR = 27-71) and the lowest in vaccinated individuals (median AI = 19, IQR = 8-48). Similarly, NT antibody titer was highest in vaccinated individuals infected with COVID-19 (median 128; IQR = 32-256) compared to vaccinated individuals (median 32, IQR = 4-128) and patients with COVID-19 (median 32, IQR = 8-64). The correlation between AI and NT titer was strongly positive in vaccinated individuals and moderately positive in patients with COVID-19. No significant correlation was observed in vaccinated individuals infected with COVID-19. In patients infected with Alpha and Delta, the lowest VNT positivity rate was for the Omicron variant (85.0%/83.3%). Patients infected with the Alpha variant showed the lowest NT titer for the Omicron variant (median titer 32) compared to the Wuhan/Delta variants (64/128). Patients infected with the Delta variant had the lowest NT titer to the Omicron variant (median 32), compared to the Wuhan/Alpha variants (64/128). Patients infected with the Omicron variant showed similar titers to the Delta/Wuhan variants (128) and higher to the Alpha variant (256). CONCLUSIONS The cross-immunity to SARS-CoV-2 is lowest for the Omicron variant compared to the Alpha/Delta variants.
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Affiliation(s)
- Tatjana Vilibic-Cavlek
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (E.B.); (M.B.); (Z.H.); (L.M.); (L.A.)
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Vladimir Stevanovic
- Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia; (S.K.); (G.M.); (I.C.); (L.B.)
| | - Snjezana Kovac
- Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia; (S.K.); (G.M.); (I.C.); (L.B.)
| | - Ema Borko
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (E.B.); (M.B.); (Z.H.); (L.M.); (L.A.)
| | - Maja Bogdanic
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (E.B.); (M.B.); (Z.H.); (L.M.); (L.A.)
| | - Gorana Miletic
- Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia; (S.K.); (G.M.); (I.C.); (L.B.)
| | - Zeljka Hruskar
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (E.B.); (M.B.); (Z.H.); (L.M.); (L.A.)
| | - Thomas Ferenc
- Clinical Department of Diagnostic and Interventional Radiology, Merkur University Hospital, 10000 Zagreb, Croatia;
| | - Ivona Coric
- Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia; (S.K.); (G.M.); (I.C.); (L.B.)
| | - Mateja Vujica Ferenc
- Department of Obstetrics and Gynecology, University Hospital Center Zagreb, 10000 Zagreb, Croatia;
| | - Ljiljana Milasincic
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (E.B.); (M.B.); (Z.H.); (L.M.); (L.A.)
| | - Ljiljana Antolasic
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (E.B.); (M.B.); (Z.H.); (L.M.); (L.A.)
| | - Ljubo Barbic
- Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia; (S.K.); (G.M.); (I.C.); (L.B.)
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Zhang Y, Li Q, Liu N, Hu J, Lin X, Huang M, Wei Y, Qi X, Chen X. Secure reversal of immune evasion from refractory NSCLC and highly contagious CoV-2 mutants by using 3D-engineered multifunctional biologics. Bioeng Transl Med 2023; 8:e10554. [PMID: 37693048 PMCID: PMC10487317 DOI: 10.1002/btm2.10554] [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: 11/06/2022] [Revised: 04/22/2023] [Accepted: 05/16/2023] [Indexed: 09/12/2023] Open
Abstract
There is an imperative choice to develop a secure feasible strategy to address evasion dynamics of refractory tumors and SARS-CoV-2-variants, while stem cell-based protocol may be more reliable as its unique ability for resetting multifunctional immunity to address progressive tumor and the constantly-evolving virus. In this study, spheroid-embryonoid stem cells from mature somatic cells were engineered as multifunctional biologics (3D-E/BSC) and inoculated in senile rhesus to identify secure potential against immune-evasion from viral-variants. Meanwhile, a cohort of eligible patients with stage IV NSCLC were approved for phase I clinical trials. Subsequently, long-lasting security and efficacy were validated by primate and clinical trials (p < 0.01) in that it could not only stimulate serological immunity, but also reset core immunity for hosts to address variant evasion after 3D-E/BSC withdrawal. Particularly, illustrated by single-cell evolving trajectory, 3D-E/BSC had securely reset senile thymus of aging hosts to remodel core immunity by rearranging naive rhythm to evolve TRGC2+/JCHAIN+NKT clusters to abolish tumoral and viral evasion dynamics with path-feedbacks of NSCLC and COVID-19 simultaneously activated, leading to continuous blockade of breakthrough infection of viral-mutants and long-term survival in one-third of terminal patients without adjuvant required. Our study may pioneer a practical multifunctional strategy to eliminate evasion of SARS-CoV-2 variants and refractory NSCLC so as for victims to restart a new life-equation.
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Affiliation(s)
- Yanna Zhang
- Department of Blood Transfusion, Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuanChina
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Qian Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Nanxi Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Jianchuan Hu
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Xiaojuan Lin
- Department of Gynecology & Obstetrics, West China Second HospitalSichuan UniversityChengduChina
| | - Meijuan Huang
- Division of Thoracic Tumor Multimodality Treatment and Department of Medical Oncology, Cancer Center, West China HospitalSichuan UniversityChengduChina
| | - Yuquan Wei
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
- Division of Thoracic Tumor Multimodality Treatment and Department of Medical Oncology, Cancer Center, West China HospitalSichuan UniversityChengduChina
| | - Xiaorong Qi
- Department of Gynecology & Obstetrics, West China Second HospitalSichuan UniversityChengduChina
| | - Xiancheng Chen
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
- Division of Thoracic Tumor Multimodality Treatment and Department of Medical Oncology, Cancer Center, West China HospitalSichuan UniversityChengduChina
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Chattopadhyay A, Jailani AAK, Mandal B. Exigency of Plant-Based Vaccine against COVID-19 Emergence as Pandemic Preparedness. Vaccines (Basel) 2023; 11:1347. [PMID: 37631915 PMCID: PMC10458178 DOI: 10.3390/vaccines11081347] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/29/2023] Open
Abstract
After two years since the declaration of COVID-19 as a pandemic by the World Health Organization (WHO), more than six million deaths have occurred due to SARS-CoV-2, leading to an unprecedented disruption of the global economy. Fortunately, within a year, a wide range of vaccines, including pathogen-based inactivated and live-attenuated vaccines, replicating and non-replicating vector-based vaccines, nucleic acid (DNA and mRNA)-based vaccines, and protein-based subunit and virus-like particle (VLP)-based vaccines, have been developed to mitigate the severe impacts of the COVID-19 pandemic. These vaccines have proven highly effective in reducing the severity of illness and preventing deaths. However, the availability and supply of COVID-19 vaccines have become an issue due to the prioritization of vaccine distribution in most countries. Additionally, as the virus continues to mutate and spread, questions have arisen regarding the effectiveness of vaccines against new strains of SARS-CoV-2 that can evade host immunity. The urgent need for booster doses to enhance immunity has been recognized. The scarcity of "safe and effective" vaccines has exacerbated global inequalities in terms of vaccine coverage. The development of COVID-19 vaccines has fallen short of the expectations set forth in 2020 and 2021. Furthermore, the equitable distribution of vaccines at the global and national levels remains a challenge, particularly in developing countries. In such circumstances, the exigency of plant virus-based vaccines has become apparent as a means to overcome supply shortages through fast manufacturing processes and to enable quick and convenient distribution to millions of people without the reliance on a cold chain system. Moreover, plant virus-based vaccines have demonstrated both safety and efficacy in eliciting robust cellular immunogenicity against COVID-19 pathogens. This review aims to shed light on the advantages and disadvantages of different types of vaccines developed against SARS-CoV-2 and provide an update on the current status of plant-based vaccines in the fight against the COVID-19 pandemic.
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Affiliation(s)
- Anirudha Chattopadhyay
- Pulses Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar 385506, India;
| | - A. Abdul Kader Jailani
- Department of Plant Pathology, North Florida Research and Education Center, University of Florida, Quincy, FL 32351, USA
| | - Bikash Mandal
- Advanced Centre for Plant Virology, Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 110012, India
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