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Mitochondrial injury in enterovirus 71-infected Vero cells and its mechanism / 南方医科大学学报
Journal of Southern Medical University ; (12): 857-861, 2015.
Artigo em Chinês | WPRIM | ID: wpr-355269
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the mitochondrial injury in enterovirus 71 (EV71)-infected Vero cells and explore the possible mechanism.</p><p><b>METHODS</b>A clinical isolate of EV71 was inoculated to Vero cells and the EV71 antigen was detected by immunofluorescence assay. The morphological changes of Vero cells were observed using optical microscopy and transmission electron microscopy. The diameter and area density of the viral particles and the ratio and area density of vacuolated mitochondria in the cells were measured on the ultrastructural images.</p><p><b>RESULTS</b>EV71-infected Vero cells underwent obvious changes and to a spherical morphology followed by cell death EV71 particles were detected in the cytoplasm by immunofluorescence. Ultrastructurally, the infected cells contained a large number of viral particles in the cytoplasm, with a clustered distribution and lattice-like arrangement. The diameter of the particles were 16.3 nm and the mean area density was 38.3%. Most of the mitochondria presented with swelling, vacuoles and degeneration. The ratio of the vacuolated mitochondria was 90.9% with a mean area density of 89.2%. Viral particles were also found in some mitochondria.</p><p><b>CONCLUSION</b>EV71 proliferates in the cytoplasm and invades the mitochondria of infected Vero cells leading to mitochondrial injury and cell death, suggesting that mitochondria are the targets for EV71 infection.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Virologia / Células Vero / Chlorocebus aethiops / Enterovirus / Citoplasma / Infecções por Enterovirus / Mitocôndrias Limite: Animais / Humanos Idioma: Chinês Revista: Journal of Southern Medical University Ano de publicação: 2015 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Virologia / Células Vero / Chlorocebus aethiops / Enterovirus / Citoplasma / Infecções por Enterovirus / Mitocôndrias Limite: Animais / Humanos Idioma: Chinês Revista: Journal of Southern Medical University Ano de publicação: 2015 Tipo de documento: Artigo