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Virological characteristics of the SARS-CoV-2 Omicron EG.5.1 variant

S. Tsujino, S. Deguchi, T. Nomai, M. Padilla-Blanco, A. Plianchaisuk, L. Wang, MM. Begum, K. Uriu, K. Mizuma, N. Nao, I. Kojima, T. Tsubo, J. Li, Y. Matsumura, M. Nagao, Y. Oda, M. Tsuda, Y. Anraku, S. Kita, H. Yajima, K. Sasaki-Tabata, Z. Guo,...

. 2024 ; 68 (9) : 305-330. [pub] 20240704

Jazyk angličtina Země Austrálie

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc24019122

Grantová podpora
Core Research for Evolutional Science and Technology

In middle to late 2023, a sublineage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron XBB, EG.5.1 (a progeny of XBB.1.9.2), is spreading rapidly around the world. We performed multiscale investigations, including phylogenetic analysis, epidemic dynamics modeling, infection experiments using pseudoviruses, clinical isolates, and recombinant viruses in cell cultures and experimental animals, and the use of human sera and antiviral compounds, to reveal the virological features of the newly emerging EG.5.1 variant. Our phylogenetic analysis and epidemic dynamics modeling suggested that two hallmark substitutions of EG.5.1, S:F456L and ORF9b:I5T are critical to its increased viral fitness. Experimental investigations on the growth kinetics, sensitivity to clinically available antivirals, fusogenicity, and pathogenicity of EG.5.1 suggested that the virological features of EG.5.1 are comparable to those of XBB.1.5. However, cryo-electron microscopy revealed structural differences between the spike proteins of EG.5.1 and XBB.1.5. We further assessed the impact of ORF9b:I5T on viral features, but it was almost negligible in our experimental setup. Our multiscale investigations provide knowledge for understanding the evolutionary traits of newly emerging pathogenic viruses, including EG.5.1, in the human population.

1st Medical Faculty at Biocev Charles University Vestec Prague Czechia

AMED CREST Japan Agency for Medical Research and Development Tokyo Japan

Center for iPS Cell Research and Application Kyoto University Kyoto Japan

Collaboration Unit for Infection Joint Research Center for Human Retrovirus Infection Kumamoto University Kumamoto Japan

CREST Japan Science and Technology Agency Kawaguchi Japan

Departamento de Farmacia Facultad de Ciencias de la Salud Universidad Cardenal Herrera CEU CEU Universities Valencia Spain

Department of Biomedicine School of Life Sciences Indonesia International Institute for Life Sciences Jakarta Indonesia

Department of Cancer Pathology Faculty of Medicine Hokkaido University Sapporo Japan

Department of Clinical Laboratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan

Department of Clinical Pathology Faculty of Medicine Suez Canal University Ismailia Egypt

Department of Life Sciences Faculty of Natural Science Imperial College London London UK

Department of Medicinal Sciences Graduate School of Pharmaceutical Sciences Kyushu University Fukuoka Japan

Department of Microbiology and Immunology Faculty of Medicine Hokkaido University Sapporo Japan

Division of International Research Promotion International Institute for Zoonosis Control Hokkaido University Sapporo Japan

Division of Molecular Virology and Genetics Joint Research Center for Human Retrovirus Infection Kumamoto University Kumamoto Japan

Division of Pathogen Structure International Institute for Zoonosis Control Hokkaido University Sapporo Japan

Division of Risk Analysis and Management International Institute for Zoonosis Control Hokkaido University Sapporo Japan

Division of Systems Virology Department of Microbiology and Immunology The Institute of Medical Science The University of Tokyo Tokyo Japan

Faculty of Pharmaceutical Sciences Kyushu University Fukuoka Japan

Global Station for Biosurfaces and Drug Discovery Hokkaido University Sapporo Japan

Graduate School of Biomedical and Health Sciences Hiroshima University Hiroshima Japan

Graduate School of Frontier Sciences The University of Tokyo Kashiwa Japan

Graduate School of Medicine The University of Tokyo Tokyo Japan

HiLung Inc Kyoto Japan

Institute for Chemical Reaction Design and Discovery Hokkaido University Sapporo Japan

Institute for Genetic Medicine Hokkaido University Sapporo Japan

Institute for Vaccine Research and Development Hokkaido University Sapporo Japan

International Collaboration Unit International Institute for Zoonosis Control Hokkaido University Sapporo Japan

International Research Center for Infectious Diseases The Institute of Medical Science The University of Tokyo Tokyo Japan

International Vaccine Design Center The Institute of Medical Science The University of Tokyo Tokyo Japan

Laboratory of Biomolecular Science and Center for Research and Education on Drug Discovery Faculty of Pharmaceutical Sciences Hokkaido University Sapporo Japan

Laboratory of Medical Virology Institute for Life and Medical Sciences Kyoto University Kyoto Japan

Laboratory of Virus Control Research Institute for Microbial Diseases Osaka University Suita Japan

One Health Research Center Hokkaido University Sapporo Japan

Tokyo Metropolitan Institute of Public Health Tokyo Japan

Citace poskytuje Crossref.org

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