Entry receptor LDLRAD3 is required for Venezuelan equine encephalitis virus peripheral infection and neurotropism leading to pathogenesis in mice.

Entry receptor LDLRAD3 is required for Venezuelan equine encephalitis virus peripheral infection and neurotropism leading to pathogenesis in mice.
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DOI:
10.1016/j.celrep.2023.112946
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发表时间:
2023-08-29
期刊:
影响因子:
8.8
通讯作者:
--
中科院分区:
生物学1区
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委内瑞拉马脑炎病毒(VEEV)是一种脑炎甲病毒,可引起美洲神经系统疾病的流行。低密度脂蛋白受体A类含结构域3(LDLRAD 3)是最近报道的VEEV的进入受体。在这里,使用野生型和Ldlrad3缺陷型小鼠,我们定义了一个关键的作用,LDLRAD 3在控制VEEV感染,发病机制和嗜神经性的步骤。我们的分析表明,LDLRAD 3是需要有效的VEEV感染和发病机制之前和之后的中枢神经系统的入侵。Ldlrad3缺陷小鼠在鼻内和颅内VEEV接种后存活,并显示不同脑区神经元感染减少。由于LDLRAD 3是发病机制的决定因素和脑神经元VEEV感染所需的进入受体,因此受体靶向治疗可能有望作为对策。Kafai等人使用鼠模型和Ldlrad3缺陷小鼠证明,含低密度脂蛋白受体A类结构域3(LDLRAD 3)(一种主要VEEV受体)在VEEV发病机制的多个阶段中是重要的。LDLRAD 3对于中枢神经系统中神经元的VEEV感染特别重要。
Venezuelan equine encephalitis virus (VEEV) is an encephalitic alphavirus responsible for epidemics of neurological disease across the Americas. Low-density lipoprotein receptor class A domain-containing 3 (LDLRAD3) is a recently reported entry receptor for VEEV. Here, using wild-type and Ldlrad3-deficient mice, we define a critical role for LDLRAD3 in controlling steps in VEEV infection, pathogenesis, and neuro-tropism. Our analysis shows that LDLRAD3 is required for efficient VEEV infection and pathogenesis prior to and after central nervous system invasion. Ldlrad3-deficient mice survive intranasal and intracranial VEEV inoculation and show reduced infection of neurons in different brain regions. As LDLRAD3 is a determinant of pathogenesis and an entry receptor required for VEEV infection of neurons of the brain, receptor-targeted therapies may hold promise as countermeasures. Kafai et al. demonstrate that the low-density lipoprotein receptor class A domain-containing 3 (LDLRAD3), a major VEEV receptor, is important at multiple stages of VEEV pathogenesis using a murine model and Ldlrad3-deficient mice. LDLRAD3 is particularly important for VEEV infection of neurons in the central nervous system.
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