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iScience . Rapid spread of the SARS-CoV-2 JN.1 lineage is associated with increased neutralization evasion

tetano

Editor, Senior Moderator
iScience


. 2024 May 3;27(6):109904.
doi: 10.1016/j.isci.2024.109904. eCollection 2024 Jun 21. Rapid spread of the SARS-CoV-2 JN.1 lineage is associated with increased neutralization evasion

Lu Zhang[SUP] 1 2 [/SUP], Alexandra Dopfer-Jablonka[SUP] 3 4 [/SUP], Anne Cossmann[SUP] 3 [/SUP], Metodi V Stankov[SUP] 3 [/SUP], Luise Graichen[SUP] 1 2 [/SUP], Anna-Sophie Moldenhauer[SUP] 1 [/SUP], Christina Fichter[SUP] 5 [/SUP], Anupriya Aggarwal[SUP] 5 [/SUP], Stuart G Turville[SUP] 5 [/SUP], Georg M N Behrens[SUP] 3 4 6 [/SUP], Stefan Pöhlmann[SUP] 1 2 [/SUP], Markus Hoffmann[SUP] 1 2 [/SUP]



Affiliations
Abstract

In July/August 2023, the highly mutated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) BA.2.86 lineage emerged and its descendant JN.1 is on track to become the dominant SARS-CoV-2 lineage globally. Compared to the spike (S) protein of the parental BA.2.86 lineage, the JN.1 S protein contains one mutation, L455S, which may affect receptor binding and antibody evasion. Here, we performed a virological assessment of the JN.1 lineage employing pseudovirus particles bearing diverse SARS-CoV-2 S proteins. Using this strategy, it was found that S protein mutation L455S confers increased neutralization resistance but reduces ACE2 binding capacity and S protein-driven cell entry efficiency. Altogether, these data suggest that the benefit of increased antibody evasion outweighs the reduced ACE2 binding capacity and further enabled the JN.1 lineage to effectively spread in the human population.

Keywords: Health sciences; Immunology; Virology.

 
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