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Human cytomegalovirus induces alteration of β-actin mRNA and microfilaments in human embryo fibroblast cells

机译:人巨细胞病毒诱导人胚成纤维细胞中β-肌动蛋白mRNA和微丝的改变

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Objective: To investigate the infection of human embryo fibroblast cell line HF cells by CMV as well as the effects of CMV on β-actin mRNA and microfilaments. Methods: HF cells shape was observed after the infection of CMV. RT-PCR assay was used to detect the mRNA expression of CMV immediate early (IE) gene, β-actin and GAPDH genes of HF cells infected by CMV. CMV particles and cell microfilaments were detected with electron microscope. Results: Shape of HF cell changed after the infection by CMV. HF cells infected by CMV could express IE mRNA and the expression of β-actin mRNA decreased in a time- and titer-dependent manner compared with the uninfected HF cells whose expression of GAPDH mRNA did not change much. CMV particles were found with electron microscope in the cells. Microfilaments were ruptured and shortened after the infection of CMV. Conclusion: CMV can not only infect human embryo fibroblast cells line HF cells and replicate in the cells, but can also affect the expression of β-actin mRNA and the microfilaments.
机译:目的:研究CMV感染人胚成纤维细胞系HF细胞,以及CMV对β-肌动蛋白mRNA和微丝的影响。方法:CMV感染后观察HF细胞形态。采用RT-PCR技术检测CMV感染的HF细胞CMV即早(IE)基因,β-肌动蛋白和GAPDH基因的mRNA表达。用电子显微镜检测CMV颗粒和细胞微丝。结果:CMV感染后HF细胞的形状发生了改变。与未感染的GAPDH mRNA表达变化不大的HF细胞相比,CMV感染的HF细胞可表达IE mRNA,β-肌动蛋白mRNA的表达呈时间和滴度依赖性降低。用电子显微镜在细胞中发现了CMV颗粒。感染CMV后微丝破裂并缩短。结论:巨细胞病毒不仅可以感染人胚成纤维细胞系的HF细胞并在其中复制,而且还可以影响β-肌动蛋白mRNA和微丝的表达。

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