KMID : 0893420150160030265
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Journal of Veterinary Science 2015 Volume.16 No. 3 p.265 ~ p.272
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Establishment and evaluation of a murine ¥áv¥â3-integrin-expressing cell line with increased susceptibility to Foot-and-mouth disease virus
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Zhang Wei
Lian Kaiqi Yang Fan Yang Yang Zhu Zhijian Zhu Zixiang Cao Weijun Mao Ruoqing Jin Ye He Jijun Guo Jianhong Liu Xiangtao Zheng Haixue
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Abstract
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Integrin ¥áv¥â3 plays a major role in various signaling pathways, cell apoptosis, and tumor angiogenesis. To examine the functions and roles of ¥áv¥â3 integrin, a stable CHO-677 cell line expressing the murine ¥áv¥â3 heterodimer (designated as "CHO-677-m¥áv¥â3" cells) was established using a highly efficient lentiviral-mediated gene transfer technique. Integrin subunits ¥áv and ¥â3 were detected at the gene and protein levels by polymerase chain reaction (PCR) and indirect immunofluorescent assay (IFA), respectively, in the CHO-677-m¥áv¥â3 cell line at the 20th passage, implying that these genes were successfully introduced into the CHO-677 cells and expressed stably. A plaque-forming assay, 50% tissue culture infective dose (TCID50), real-time quantitative reverse transcription-PCR, and IFA were used to detect the replication levels of Foot-and-mouth disease virus (FMDV) in the CHO-677-m¥áv¥â3 cell line. After infection with FMDV/O/ZK/93, the cell line showed a significant increase in viral RNA and protein compared with CHO-677 cells. These findings suggest that we successfully established a stable ¥áv¥â3-receptor-expressing cell line with increased susceptibility to FMDV. This cell line will be very useful for further investigation of ¥áv¥â3 integrin, and as a cell model for FMDV research.
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KEYWORD
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¥áv¥â3, cell line, Foot-and-mouth disease virus, integrin, receptor
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