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Wang Q, Guo Y, Schwanz LT, Mellis IA, Sun Y, Qu Y, Urtecho G, Valdez R, Stoneman E, Gordon A, Wang HH, Ho DD, Liu L. SARS-CoV-2 omicron BA.2.87.1 exhibits higher susceptibility to serum neutralization than EG.5.1 and JN.1. Emerg Microbes Infect 2024; 13:2359004. [PMID: 38779718 PMCID: PMC11146261 DOI: 10.1080/22221751.2024.2359004] [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: 03/31/2024] [Accepted: 05/19/2024] [Indexed: 05/25/2024]
Abstract
As SARS-CoV-2 continues to spread and mutate, tracking the viral evolutionary trajectory and understanding the functional consequences of its mutations remain crucial. Here, we characterized the antibody evasion, ACE2 receptor engagement, and viral infectivity of the highly mutated SARS-CoV-2 Omicron subvariant BA.2.87.1. Compared with other Omicron subvariants, including EG.5.1 and the current predominant JN.1, BA.2.87.1 exhibits less immune evasion, reduced viral receptor engagement, and comparable infectivity in Calu-3 lung cells. Intriguingly, two large deletions (Δ15-26 and Δ136-146) in the N-terminal domain (NTD) of the spike protein facilitate subtly increased antibody evasion but significantly diminish viral infectivity. Collectively, our data support the announcement by the USA CDC that the public health risk posed by BA.2.87.1 appears to be low.
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Affiliation(s)
- Qian Wang
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Pandemic Research Alliance unit at the Wu Family Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Yicheng Guo
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Logan T. Schwanz
- Department of Pathobiology and Mechanisms of Disease, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Ian A. Mellis
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Department of Pathology and Cell Biology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Yiwei Sun
- Department of Biomedical Informatics, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Yiming Qu
- Department of Systems Biology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Guillaume Urtecho
- Department of Systems Biology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Riccardo Valdez
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Emily Stoneman
- Division of Infectious Diseases, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Aubree Gordon
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
| | - Harris H. Wang
- Department of Systems Biology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - David D. Ho
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Pandemic Research Alliance unit at the Wu Family Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Division of Infectious Diseases, Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Department of Microbiology and Immunology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Lihong Liu
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Division of Infectious Diseases, Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, People’s Republic of China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, People’s Republic of China
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Faraji N, Zeinali T, Joukar F, Aleali MS, Eslami N, Shenagari M, Mansour-Ghanaei F. Mutational dynamics of SARS-CoV-2: Impact on future COVID-19 vaccine strategies. Heliyon 2024; 10:e30208. [PMID: 38707429 PMCID: PMC11066641 DOI: 10.1016/j.heliyon.2024.e30208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 05/07/2024] Open
Abstract
The rapid emergence of multiple strains of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has sparked profound concerns regarding the ongoing evolution of the virus and its potential impact on global health. Classified by the World Health Organization (WHO) as variants of concern (VOC), these strains exhibit heightened transmissibility and pathogenicity, posing significant challenges to existing vaccine strategies. Despite widespread vaccination efforts, the continual evolution of SARS-CoV-2 variants presents a formidable obstacle to achieving herd immunity. Of particular concern is the coronavirus spike (S) protein, a pivotal viral surface protein crucial for host cell entry and infectivity. Mutations within the S protein have been shown to enhance transmissibility and confer resistance to antibody-mediated neutralization, undermining the efficacy of traditional vaccine platforms. Moreover, the S protein undergoes rapid molecular evolution under selective immune pressure, leading to the emergence of diverse variants with distinct mutation profiles. This review underscores the urgent need for vigilance and adaptation in vaccine development efforts to combat the evolving landscape of SARS-CoV-2 mutations and ensure the long-term effectiveness of global immunization campaigns.
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Affiliation(s)
- Niloofar Faraji
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Tahereh Zeinali
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Farahnaz Joukar
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Maryam Sadat Aleali
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Narges Eslami
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Mohammad Shenagari
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
- Department of Microbiology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Fariborz Mansour-Ghanaei
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
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Klingler J, Kowdle S, Bandres JC, Emami-Gorizi R, Alvarez RA, Rao PG, Amanat F, Gleason C, Kleiner G, Simon V, Edelstein A, Perandones C, Upadhyay C, Lee B, Hioe CE. Heterologous Ad26/Ad5 adenovirus-vectored vaccines elicited SARS-CoV-2-specific antibody responses with potent Fc activities. Front Immunol 2024; 15:1382619. [PMID: 38779671 PMCID: PMC11109367 DOI: 10.3389/fimmu.2024.1382619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/19/2024] [Indexed: 05/25/2024] Open
Abstract
Introduction Antibodies against the SARS-CoV-2 spike protein are a critical immune determinant for protection against the virus. While virus neutralization is a key function of spike-specific antibodies, antibodies also mediate Fc-dependent activities that can play a role in protection or pathogenesis. Methods This study characterized serum antibody responses elicited after two doses of heterologous adenovirus-vectored (Ad26/ Ad5) vaccines. Results Vaccine-induced antibody binding titers and Fc-mediated functions decreased over six months, while neutralization titers remained stable. Comparison of antibody isotypes elicited after Ad26/Ad5 vs. LNP-mRNA vaccination and after infection showed that anti-spike IgG1 were dominant and produced to high levels in all groups. The Ad26/Ad5 vaccines also induced IgG4 but not IgG2 and IgG3, whereas the LNP-mRNA vaccines elicited a full Ig spectrum (IgM, IgG1-4, IgA1-2). Convalescent COVID-19 patients had mainly IgM and IgA1 alongside IgG1. Despite these differences, the neutralization potencies against early variants were similar. However, both vaccine groups had antibodies with greater Fc potencies of binding complement and Fcg receptors than the COVID-19 group. The Ad26/Ad5 group also displayed a greater potency of RBD-specific antibody-mediated cellular phagocytosis. Discussion Antibodies with distinctive quality were induced by different vaccines and infection. The data imply the utility of different vaccine platforms to elicit antibody responses with fine-tuned Fc activities.
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Affiliation(s)
- Jéromine Klingler
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- James J. Peters VA Medical Center, Bronx, NY, United States
| | - Shreyas Kowdle
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | | | | | - Raymond A. Alvarez
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Priyanka G. Rao
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Fatima Amanat
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Charles Gleason
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Giulio Kleiner
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Viviana Simon
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Pathology, Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Alexis Edelstein
- Administración Nacional de Laboratorios e Institutos de Salud (ANLIS) Dr. Carlos G. Malbrán, Buenos Aires, Argentina
| | - Claudia Perandones
- Administración Nacional de Laboratorios e Institutos de Salud (ANLIS) Dr. Carlos G. Malbrán, Buenos Aires, Argentina
| | - Chitra Upadhyay
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Benhur Lee
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Catarina E. Hioe
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- James J. Peters VA Medical Center, Bronx, NY, United States
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4
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Shikha S, Jogi MK, Jha R, Kumar RA, Sah T, Singh P, Sagar R, Kumar A, Marwal R, Ponnusamy K, Agarwal SM, Kumar RS, Arif N, Bharadwaj M, Singh S, Kumar P. Genome sequencing of SARS-CoV-2 omicron variants in Delhi reveals alterations in immunogenic regions in spike glycoprotein. Front Immunol 2023; 14:1209513. [PMID: 37849762 PMCID: PMC10577267 DOI: 10.3389/fimmu.2023.1209513] [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: 04/20/2023] [Accepted: 08/30/2023] [Indexed: 10/19/2023] Open
Abstract
The SARS-CoV-2 omicron variants keep accumulating a large number of mutations in the spike (S) protein, which contributes to greater transmissibility and a rapid rise to dominance within populations. The identification of mutations and their affinity to the cellular angiotensin-converting enzyme-2 (ACE-2) receptor and immune evasion in the Delhi NCR region was under-acknowledged. The study identifies some mutations (Y505 reversion, G339H, and R346T/N) in genomes from Delhi, India, and their probable implications for altering the immune response and binding affinity for ACE-2. The spike mutations have influenced the neutralizing activity of antibodies against the omicron variant, which shows partial immune escape. However, researchers are currently exploring various mitigation strategies to tackle the potential decline in efficacy or effectiveness against existing and future variants of SARS-CoV-2. These strategies include modifying vaccines to target specific variants, such as the omicron variant, developing multivalent vaccine formulations, and exploring alternative delivery methods. To address this, it is also necessary to understand the impact of these mutations from a different perspective, especially in terms of alterations in antigenic determinants. In this study, we have done whole genome sequencing (WGS) of SARS-CoV-2 in COVID-19 samples from Delhi, NCR, and analyzed the spike's mutation with an emphasis on antigenic alterations. The impact of mutation in terms of epitope formation, loss/gain of efficiency, and interaction of epitopes with antibodies has been studied. Some of the mutations or variant genomes seem to be the progenitors of the upcoming variants in India. Our analyses suggested that weakening interactions with antibodies may lead to immune resistance in the circulating genomes.
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Affiliation(s)
- Sristy Shikha
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Mukesh Kumar Jogi
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
- Amity Institute of Biotechnology, Amity University, Noida, India
| | - Ruchika Jha
- Department of Biotechnology, Vinoba Bhave University, Hazaribagh, Jharkhand, India
| | - Rana Amit Kumar
- Department of Biotechnology, Anugrah Narayan College, Patna, Bihar, India
| | - Tathagat Sah
- Department of Chemical Engineering and Biotechnology, Beant College of Engineering and Technology, Gurdaspur, Punjab, India
| | - Pushpendra Singh
- Department of Biotechnology, Central University of Haryana, Mahendergarh, Haryana, India
| | - Ritu Sagar
- Department of Biotechnology, Central University of Haryana, Mahendergarh, Haryana, India
| | - Anuj Kumar
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Robin Marwal
- Biotechnology Division, National Centre for Disease Control, Delhi, India
| | | | - Subhash Mohan Agarwal
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - R. Suresh Kumar
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Nazneen Arif
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Mausumi Bharadwaj
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Shalini Singh
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Pramod Kumar
- Division of Molecular Biology, Indian Council of Medical Research (ICMR)-National Institute of Cancer Prevention and Research (NICPR), Noida, India
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5
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Nagaraja M, Sireesha K, Srikar A, Sudheer Kumar K, Mohan A, Vengamma B, Tirumala C, Verma A, Kalawat U. Mutation Analysis of SARS-CoV-2 Variants Isolated from Symptomatic Cases from Andhra Pradesh, India. Viruses 2023; 15:1656. [PMID: 37631999 PMCID: PMC10458099 DOI: 10.3390/v15081656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/17/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
There has been a continuous evolution in the SARS-CoV-2 genome; therefore, it is necessary to monitor the shifts in the SARS-CoV-2 variants. This study aimed to detect various SARS-CoV-2 variants circulating in the state of Andhra Pradesh, India. The study attempted to sequence the complete S-gene of SARS-CoV-2 of 104 clinical samples using Sanger's method to analyze and compare the mutations with the global prevalence. The method standardized in this study was able to amplify the complete length of the S-gene (3822 bp). The resulting nucleotide and amino acid mutations were analyzed and compared with the local and global SARS-CoV-2 databases using Nextclade and GISAID tools. The Delta variant was the most common variant reported in the present study, followed by the Omicron variant. A variant name was not assigned to thirteen samples using the Nextclade tool. There were sixty-nine types of amino acid substitutions reported (excluding private mutations) throughout the spike gene. The T95I mutation was observed predominantly in Delta variants (15/38), followed by Kappa (3/8) and Omicron (1/31). Nearly all Alpha and Omicron lineages had the N501Y substitution; Q493R was observed only in the Omicron lineage; and other mutations (L445, F486, and S494) were not observed in the present study. Most of these mutations found in the Omicron variant are located near the furin cleavage site, which may play a role in the virulence, pathogenicity, and transmission of the virus. Phylogenetic analysis showed that the 104 complete CDS of SARS-CoV-2 belonged to different phylogenetic clades like 20A, 20B, 20I (Alpha), 21A (Delta), 21B (Kappa), 21I (Delta), 21J (Delta), and 21L (Omicron).
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Affiliation(s)
- Mudhigeti Nagaraja
- State-Level VRDL, Department of Clinical Virology, Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
| | - Kodavala Sireesha
- Regional Center for ISCP-NCDC, Department of Clinical Virology, Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
| | - Anagoni Srikar
- State-Level VRDL, Department of Clinical Virology, Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
| | - Katari Sudheer Kumar
- State-Level VRDL, Department of Clinical Virology, Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
| | - Alladi Mohan
- Department of Medicine, Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
| | - Bhuma Vengamma
- Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
| | - Chejarla Tirumala
- Department of Tuberculosis and Respiratory Diseases, Sri Balaji Medical College Hospital and Research Institute, Renigunta, Tirupati 517 507, Andhra Pradesh, India
| | - Anju Verma
- Department of Clinical Virology, Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
| | - Usha Kalawat
- Department of Clinical Virology, Sri Venkateswara Institute of Medical Sciences, Tirupati 517 507, Andhra Pradesh, India
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6
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Hamdy ME, El Deeb AH, Hagag NM, Shahein MA, Alaidi O, Hussein HA. Interspecies transmission of SARS CoV-2 with special emphasis on viral mutations and ACE-2 receptor homology roles. Int J Vet Sci Med 2023; 11:55-86. [PMID: 37441062 PMCID: PMC10334861 DOI: 10.1080/23144599.2023.2222981] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 07/15/2023] Open
Abstract
COVID-19 outbreak was first reported in 2019, Wuhan, China. The spillover of the disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), to a wide range of pet, zoo, wild, and farm animals has emphasized potential zoonotic and reverse zoonotic viral transmission. Furthermore, it has evoked inquiries about susceptibility of different animal species to SARS-CoV-2 infection and role of these animals as viral reservoirs. Therefore, studying susceptible and non-susceptible hosts for SARS-CoV-2 infection could give a better understanding for the virus and will help in preventing further outbreaks. Here, we review structural aspects of SARS-CoV-2 spike protein, the effect of the different mutations observed in the spike protein, and the impact of ACE2 receptor variations in different animal hosts on inter-species transmission. Moreover, the SARS-CoV-2 spillover chain was reviewed. Combination of SARS-CoV-2 high mutation rate and homology of cellular ACE2 receptors enable the virus to transcend species barriers and facilitate its transmission between humans and animals.
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Affiliation(s)
- Mervat E. Hamdy
- Genome Research Unit, Animal Health Research Institute, Agriculture Research Centre, Giza, Egypt
| | - Ayman H. El Deeb
- Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- Department of Virology, Faculty of Veterinary Medicine, King Salman International University, South Sinai, Egypt
| | - Naglaa M. Hagag
- Genome Research Unit, Animal Health Research Institute, Agriculture Research Centre, Giza, Egypt
| | - Momtaz A. Shahein
- Department of Virology, Animal Health Research Institute, Agriculture Research Centre, Giza, Egypt
| | - Osama Alaidi
- Biocomplexity for Research and Consulting Co., Cairo, Egypt
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Hussein A. Hussein
- Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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7
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The Comparison of Mutational Progression in SARS-CoV-2: A Short Updated Overview. JOURNAL OF MOLECULAR PATHOLOGY 2022. [DOI: 10.3390/jmp3040018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The COVID-19 pandemic has impacted the world population adversely, posing a threat to human health. In the past few years, various strains of SARS-CoV-2, each with different mutations in its structure, have impacted human health in negative ways. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mutations influence the virulence, antibody evasion, and Angiotensin-converting enzyme 2 (ACE2) affinity of the virus. These mutations are essential to understanding how a new strain of SARS-CoV-2 has changed and its possible effects on the human body. This review provides an insight into the spike mutations of SARS-CoV-2 variants. As the current scientific data offer a scattered outlook on the various type of mutations, we aimed to categorize the mutations of Beta (B.1.351), Gamma (P.1), Delta (B.1.612.2), and Omicron (B.1.1.529) systematically according to their location in the subunit 1 (S1) and subunit 2 (S2) domains and summarized their consequences as a result. We also compared the miscellany of mutations that have emerged in all four variants to date. The comparison shows that mutations such as D614G and N501Y have emerged in all four variants of concern and that all four variants have multiple mutations within the N-terminal domain (NTD), as in the case of the Delta variant. Other mutations are scattered in the receptor binding domain (RBD) and subdomain 2 (SD2) of the S1 domain. Mutations in RBD or NTD are often associated with antibody evasion. Few mutations lie in the S2 domain in the Beta, Gamma, and Delta variants. However, in the Omicron variant many mutations occupy the S2 domain, hinting towards a much more evasive virus.
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8
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Roshdy WH, Khalifa MK, San JE, Tegally H, Wilkinson E, Showky S, Martin DP, Moir M, Naguib A, Elguindy N, Gomaa MR, Fahim M, Abu Elsood H, Mohsen A, Galal R, Hassany M, Lessells RJ, Al-Karmalawy AA, EL-Shesheny R, Kandeil AM, Ali MA, de Oliveira T. SARS-CoV-2 Genetic Diversity and Lineage Dynamics in Egypt during the First 18 Months of the Pandemic. Viruses 2022; 14:1878. [PMID: 36146685 PMCID: PMC9502207 DOI: 10.3390/v14091878] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/21/2022] [Accepted: 07/23/2022] [Indexed: 11/29/2022] Open
Abstract
COVID-19 was first diagnosed in Egypt on 14 February 2020. By the end of November 2021, over 333,840 cases and 18,832 deaths had been reported. As part of the national genomic surveillance, 1027 SARS-CoV-2 near whole-genomes were generated and published by the end of July 2021. Here we describe the genomic epidemiology of SARS-CoV-2 in Egypt over this period using a subset of 976 high-quality Egyptian genomes analyzed together with a representative set of global sequences within a phylogenetic framework. A single lineage, C.36, introduced early in the pandemic was responsible for most of the cases in Egypt. Furthermore, to remain dominant in the face of mounting immunity from previous infections and vaccinations, this lineage acquired several mutations known to confer an adaptive advantage. These results highlight the value of continuous genomic surveillance in regions where VOCs are not predominant and the need for enforcement of public health measures to prevent expansion of the existing lineages.
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Affiliation(s)
- Wael H. Roshdy
- Central Public Health Laboratory, Ministry of Health and Population, Cairo 11613, Egypt
| | | | - James Emmanuel San
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Houriiyah Tegally
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Eduan Wilkinson
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Shymaa Showky
- Central Public Health Laboratory, Ministry of Health and Population, Cairo 11613, Egypt
| | - Darren Patrick Martin
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, Cape Town 7700, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), University of Cape Town, Observatory, Cape Town 7700, South Africa
| | - Monika Moir
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Amel Naguib
- Central Public Health Laboratory, Ministry of Health and Population, Cairo 11613, Egypt
| | - Nancy Elguindy
- Central Public Health Laboratory, Ministry of Health and Population, Cairo 11613, Egypt
| | - Mokhtar R. Gomaa
- Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Dokki, Giza 12622, Egypt
| | - Manal Fahim
- Department of Surveillance and Epidemiology, Ministry of Health and Population, Cairo 12622, Egypt
| | - Hanaa Abu Elsood
- Department of Surveillance and Epidemiology, Ministry of Health and Population, Cairo 12622, Egypt
| | - Amira Mohsen
- World Health Organization, Egypt Country Office, Cairo 12622, Egypt
| | - Ramy Galal
- Public Health Initiative, Cairo 11613, Egypt
| | - Mohamed Hassany
- National Hepatology and Tropical Medicine Research Institute, Ministry of Health and Population, Cairo 11613, Egypt
| | - Richard J. Lessells
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Ahmed A. Al-Karmalawy
- Department of Pharmaceutical Medicinal Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta 34518, Egypt
| | - Rabeh EL-Shesheny
- Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Dokki, Giza 12622, Egypt
| | - Ahmed M. Kandeil
- Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Dokki, Giza 12622, Egypt
| | - Mohamed A. Ali
- Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Dokki, Giza 12622, Egypt
| | - Tulio de Oliveira
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch 7600, South Africa
- Department of Global Health, University of Washington, Seattle, WA 98195, USA
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Hamdy ME, El-Deeb AH, Hagag NM, Shahein MA, Alaidi O, Hussein HA. Mutations of the SARS-CoV-2 Spike Glycoprotein Detected in Cats and Their Effect on Its Structure and Function. Front Cell Infect Microbiol 2022; 12:875123. [PMID: 35719353 PMCID: PMC9198574 DOI: 10.3389/fcimb.2022.875123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 04/25/2022] [Indexed: 11/14/2022] Open
Abstract
The high frequency of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) mutations and homology of the Angiotensin-Converting Enzyme-2 (ACE2) cell receptors in various hosts help the virus transcend species barriers. In this study, we investigated the mutations of the SARS-CoV-2 spike glycoprotein detected in cats and their effect on its structure and function. Interestingly, some of these mutations are reported here in cats for the first time. Structural analysis showed seven residue substitutions in the spike glycoprotein. Four of the detected mutations are located on the spike surface, which are critical interaction points for neutralizing antibodies. Furthermore, three of the reported mutations could facilitate viral binding to the ACE2 host receptor, influence S1/S2 cleavage, destabilize the β-hairpin structure of the S2 and enhance viral infectivity. Structural modeling and phylogenic analysis of the ACE2 receptor provided an indication of the binding capacity of the virus to the specific cell receptors of different species and hosts. The presented work highlights the effects of the residue substitutions on viral evasion, infectivity and possibility of SARS-CoV-2 spillover between humans and cats. In addition, the work paves the way for in-depth molecular investigation into the relationship between SARS-CoV-2 receptor binding and host susceptibility.
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Affiliation(s)
- Mervat E. Hamdy
- Genome Research Unit, Animal Health Research Institute, Agriculture Research Centre, Giza, Egypt
| | - Ayman H. El-Deeb
- Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- Department of Virology, Faculty of Veterinary Medicine, King Salman International University, South Sinai, Egypt
| | - Naglaa M. Hagag
- Genome Research Unit, Animal Health Research Institute, Agriculture Research Centre, Giza, Egypt
| | - Momtaz A. Shahein
- Department of Virology, Animal Health Research Institute, Agriculture Research Centre, Giza, Egypt
| | - Osama Alaidi
- Department of Research and Development, Biocomplexity for Research and Consulting, Cairo, Egypt
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Hussein A. Hussein
- Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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Special Issue "Emerging Viruses 2021: Surveillance, Prevention, Evolution and Control". Viruses 2022; 14:v14040815. [PMID: 35458545 PMCID: PMC9031074 DOI: 10.3390/v14040815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 04/13/2022] [Indexed: 12/04/2022] Open
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