The next pandemic? Establishing an experimental framework for assessing virus zoonotic potential using coronaviruses of rodents and humans
下一次大流行?
基本信息
- 批准号:EP/Y011414/1
- 负责人:
- 金额:$ 203.99万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2023
- 资助国家:英国
- 起止时间:2023 至 无数据
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
The COVID-19 pandemic has been a stark reminder of the risks that zoonotic virus transmission can pose to humans. Although SARS- CoV-2 and pathogenic predecessors SARS-CoV and MERS-CoV are believed to have origins in bats, other medically important human coronaviruses (CoVs), namely OC43 and HKU1, are widely believed to have rodent origins. Thus, while significant recent research has focused on the origins and zoonotic potential of CoVs in bats, those in rodents remain more poorly understood. To this end, although dozens of CoVs have been identified in diverse rodent species since 2015, our knowledge of these viruses is almost entirely in silico (sequence-based). There is therefore an urgent need to undertake experimental investigations that will provide a better understanding of the pandemic potential of CoVs in rodents, particularly in light of their peri-domestic/peri-urban nature. Moreover, this propensity for humans and rodents to share space also highlights the equally urgent need to understand whether rodents might serve as reservoirs for human CoVs.The work proposed here will thus investigate the potential for, and determinants of, CoV transmission between rodents and humans, using 4 primary objectives:1. Evaluate the capacity for zoonotic transmission of rodent CoVs to humans2. Determine the capacity of human CoVs to establish reservoirs in rodents3. Identify specific molecular barriers that govern transmission of CoVs between humans and rodents 4. Generate computational predictions of CoV transmission risks between humans and rodentsTo achieve these aims, the fellowship will incorporate diverse and ambitious molecular and computational approaches and bridge in vitro and in vivo experimentation. Ultimately this will not only elucidate CoV cross-species transmission risks but establish an experimental framework for more broadly evaluating virus zoonotic and pandemic potential.
COVID-19大流行鲜明地提醒人们,人畜共患病毒传播可能给人类带来的风险。虽然SARS- CoV-2和致病性前体SARS- cov和MERS-CoV被认为起源于蝙蝠,但其他医学上重要的人类冠状病毒(cov),即OC43和HKU1,被广泛认为起源于啮齿动物。因此,尽管最近的重要研究主要集中在蝙蝠中冠状病毒的起源和人畜共患的可能性,但对啮齿动物中的冠状病毒的研究仍然知之甚少。为此,尽管自2015年以来已经在不同的啮齿动物物种中发现了数十种冠状病毒,但我们对这些病毒的了解几乎完全是基于计算机的(基于序列的)。因此,迫切需要开展实验调查,以便更好地了解冠状病毒在啮齿类动物中的大流行潜力,特别是考虑到它们在家庭周边/城市周边的性质。此外,人类和啮齿动物共享空间的这种倾向也凸显了同样迫切需要了解啮齿动物是否可能成为人类冠状病毒的宿主。因此,这里提出的工作将调查冠状病毒在啮齿动物与人之间传播的可能性和决定因素,主要目标有四个:1。评估啮齿动物冠状病毒向人类的人畜共患传播能力2。确定人类冠状病毒在啮齿动物中建立宿主的能力3。确定控制冠状病毒在人与啮齿动物之间传播的特定分子屏障。为了实现这些目标,该奖学金将采用多种雄心勃勃的分子和计算方法,并在体外和体内实验中架起桥梁。最终,这不仅将阐明冠状病毒跨物种传播的风险,而且将为更广泛地评估病毒的人畜共患和大流行潜力建立一个实验框架。
项目成果
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