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

• Published in: Journal of Zhejiang University. Science Vol. 5; no. 6; pp. 733 - 737
• Main Author: 林茂芳 魏国庆 黄河 蔡真
• Format: Journal Article
• Language: English
• Published: China 01.06.2004
• Subjects: Actin Cytoskeleton - genetics; Actin Cytoskeleton - metabolism; Actin Cytoskeleton - ultrastructure; Actins - genetics; Actins - metabolism; Actins - ultrastructure; Cell Line; Cell Shape; Cytomegalovirus - physiology; Cytomegalovirus - ultrastructure; Embryo, Mammalian - cytology; Embryo, Mammalian - metabolism; Embryo, Mammalian - virology; Fibroblasts - cytology; Fibroblasts - metabolism; Fibroblasts - ultrastructure; Fibroblasts - virology; Glyceraldehyde-3-Phosphate Dehydrogenases - genetics; Humans; Immediate-Early Proteins - genetics; Kinetics; Microscopy, Electron; RNA, Messenger - genetics; RNA, Messenger - metabolism; Virion - ultrastructure; β-肌动蛋白; 人体细胞巨化病毒; 纤维原细胞
• ISSN: 1009-3095
• DOI: 10.1631/jzus.2004.0733

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.