In vitro and in vivo models for the study of EV-D68 infection
Pathology(2023)
摘要
Enterovirus D68 (EV-D68) is one of hundreds of non-polio enteroviruses that typically cause cold-like respiratory illness. The first EV-D68 outbreak in the United States in 2014 aroused widespread concern among the public and health authorities. The infection was found to be associ-ated with increased surveillance of acute flaccid myelitis, a neurological condition that causes limb paralysis in conjunction with spinal cord inflammation. In vitro studies utilising two-dimensional (2D) and three-dimensional (3D) culture systems have been employed to elucidate the pathogenic mechanism of EV-D68. Various animal models have also been developed to investigate viral tropism and distribution, pathogenesis, and immune responses during EV-D68 infection. EV-D68 infections have primarily been investigated in respiratory, intestinal and neural cell lines/ tissues, as well as in small-size immunocompetent rodent models that were limited to a young age. Some studies have implemented strategies to overcome the barriers by using immunodeficient mice or virus adaptation. Although the existing models may not fully recapitulate both respi-rator y and neurological disease observed in human EV -D68 infection, they have been valuable for studying path-ogenesis and evaluating potential vaccine or therapeutic candidates. In this review, we summarise the methodolo-gies and findings from each experimental model and discuss their applications and limitations.
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关键词
Enterovirus D68,enterovirus,in vitro,in vivo,animal models,pathogenesis,neurovirulence,acute flaccid myelitis
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