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探索新的 COVID-19 不确定性:JN.1 变体——JN.1:奥密克戎亚谱系中的怪鸟。

Exploring New COVID-19 Incertitude: JN.1 Variant- JN.1: The Queer Bird among Omicron Sublineages.

机构信息

Independent Researcher, Bhopal, Madhya Pradesh, 462020, India.

Department of Biochemistry, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, 462020, India.

出版信息

Infect Disord Drug Targets. 2025;25(1):e270624231369. doi: 10.2174/0118715265304215240530073446.

DOI:10.2174/0118715265304215240530073446
PMID:38939989
Abstract

The COVID-19 pandemic is casting a long shadow, and the appearance of the JN.1 variety calls attention to the necessity of maintaining heightened awareness. It considers the strength that has been developed immunization programs and the necessity of global collaboration to find a solution in light of the emergence of new strains of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Phylogenetically, the SARS-CoV-2 Omicron XBB lineages, which include EG.5.1 and HK.3, are different from the SARS-CoV-2 BA.2.86 lineage, which was initially discovered in August 2023. More than 30 mutations in the spike (S) protein are carried by BA.2.86 compared to XBB and BA.2, suggesting a high potential for immune evasion. JN.1 (BA.2.86.1.1), appeared in late 2023 after the format had undergone evolution. JN.1 carries three mutations in proteins that do not include S, as well as S: L455S. As previously demonstrated, the HK.3 and other "FLip" variations possess the S: L455F mutation, which enhances transmissibility and immune escape capacity in comparison to the parental EG.5.1 variety. This mutation is a characteristic of JN.1. The COVID-19 virus is dynamic and evolves over time. New varieties can sometimes spread more quickly or effectively after these alterations. If that happens, the new variant has a chance to outpace the current varieties in terms of frequency.

摘要

新冠疫情仍在持续,新冠病毒 JN.1 变异株的出现再次提醒我们,需要保持高度警惕。考虑到已有的免疫接种计划的实力,以及在出现新的严重急性呼吸综合征冠状病毒 2 (SARS-CoV-2) 株的情况下,全球合作寻找解决方案的必要性。从进化的角度来看,SARS-CoV-2 的奥密克戎 XBB 谱系,包括 EG.5.1 和 HK.3,与最初在 2023 年 8 月发现的 SARS-CoV-2 BA.2.86 谱系不同。与 XBB 和 BA.2 相比,BA.2.86 携带 30 多个刺突(S)蛋白突变,表明其具有很强的免疫逃逸能力。JN.1(BA.2.86.1.1)是在 2023 年底该病毒发生进化后出现的。JN.1 在不包括 S 蛋白的蛋白中携带三个突变,以及 S 蛋白中的 L455S 突变。如前所述,与原始 EG.5.1 变体相比,HK.3 和其他“FLip”变体具有 S:L455F 突变,这增强了其传染性和免疫逃逸能力。这种突变是 JN.1 的特征。新冠病毒是动态的,会随着时间的推移而进化。在这些变化之后,新的变体有时可能会传播得更快或更有效。如果发生这种情况,新变体在频率上就有可能超过当前的变体。

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