Combining spike- and nucleocapsid-based vaccines improves distal control of SARS-CoV-2.

Combining spike- and nucleocapsid-based vaccines improves distal control of SARS-CoV-2.
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DOI:
10.1016/j.celrep.2021.109664
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发表时间:
2021-09-07
期刊:
影响因子:
8.8
通讯作者:
Penaloza MacMaster P
Penaloza MacMaster P
中科院分区:
生物学1区
文献类型:
--
作者:
Dangi T;Class J;Palacio N;Richner JM;Penaloza MacMaster P

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SARS-CoV-2感染会导致呼吸功能不全和神经症状,包括嗅觉丧失和精神障碍,并可能是致命的。大多数疫苗仅基于尖峰抗原,尽管它们在预防严重疾病和死亡方面表现出了有效性,但它们并不总是提供灭菌免疫力。在这里,我们询问是否可以通过将核衣壳作为抗原来改进SARS-CoV-2疫苗。我们表明,在72小时的挑战之后,基于钉子的疫苗在肺中提供了急性保护,但在大脑中没有。然而,将基于钉状病毒的疫苗与基于核衣壳的疫苗相结合,可以在肺和脑中提供急性保护。这些发现表明,核衣壳特异性免疫可以改善SARS-CoV-2的远端控制,从而为将核衣壳纳入下一代新冠肺炎疫苗提供了依据。大多数SARS-CoV-2疫苗仅基于尖峰抗原,目前尚不清楚加入其他病毒抗原是否会提高保护力。Dangi等人。结果表明,将尖峰疫苗与核衣壳疫苗相结合可以改善对SARS-CoV-2感染的控制,从而保证将核衣壳包括在下一代SARS-CoV-2疫苗中。
SARS-CoV-2 infection causes respiratory insufficiency and neurological manifestations, including loss of smell and psychiatric disorders, and can be fatal. Most vaccines are based on the spike antigen alone, and although they have shown efficacy at preventing severe disease and death, they do not always confer sterilizing immunity. Here, we interrogate whether SARS-CoV-2 vaccines could be improved by incorporating nucleocapsid as an antigen. We show that, after 72 h of challenge, a spike-based vaccine confers acute protection in the lung, but not in the brain. However, combining a spike-based vaccine with a nucleocapsid-based vaccine confers acute protection in both the lung and brain. These findings suggest that nucleocapsid-specific immunity can improve the distal control of SARS-CoV-2, warranting the inclusion of nucleocapsid in next-generation COVID-19 vaccines. Most SARS-CoV-2 vaccines are based on the spike antigen alone, and it is unknown whether including other viral antigens improves protection. Dangi et al. show that combining a spike vaccine with a nucleocapsid vaccine improves the control of a SARS-CoV-2 infection, warranting the inclusion of nucleocapsid in next-generation SARS-CoV-2 vaccines.
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