@article{MAKHILLJAVA20131213979, title = {Establishment of a Murine αυβ1 Transgenic CHO-K1 Cell Line and its Susceptibility to Foot-and-Mouth Disease Virus Type Asia l/HN/2006 in China}, journal = {Journal of Animal and Veterinary Advances}, volume = {12}, number = {1}, pages = {108-117}, year = {2013}, issn = {1680-5593}, doi = {javaa.2013.108.117}, url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2013.108.117}, author = {H.X.,Y.,Z.D.,Y.,F.,J.J.,W.J.,D.H. and}, keywords = {Foot-and-mouth disease,foot-and-mouth disease virus,integrin,receptor,cellular}, abstract = {Field isolates of Foot-and-Mouth Disease Virus (FMDV) were found to use four αυ integrins (αυβ1, αυβ3, αυβ6 and αυβ8) as cellular receptors. Researchers established a stable Chinese Hamster Ovary clone K1 (CHO-K1) cell line expressing the murine αυβ1 heterodimer (designated as CHO-K1-αυβ1) using a highly efficient lentiviral-based gene transfer technology to deliver murine αυ, Internal Ribosome Entry Site (IRES) and β1 genes into cell chromosomes and the inserted genes were then transcribed from a Cytomegalovirus (CMV) promoter. αυβ1 expression was stringently regulated by Doxycycline (Dox) and was found to be stable. CHO-K1-αυβ1 cells were susceptible to FMDV type Asia l/HN/2006. The plaque assay revealed that the virus produced bigger and more plaques in CHO-K1-αυβ1 cells (1.05x104 PFU mL-1) than in CHO-K1 cells. When sodium heparin (1 and 2 mg mL-1) was used as the inhibitor, the number of plaques in CHO-K1 cells were significantly decreased (4.0x103-35 and 20 PFU mL-1), supported by time-course of replication and proliferation. The number and size of plaques on CHO-K1-αυβ1 cells showed no obvious change, indicating that the αυβ1 heterodimer expressed on CHO-K1-αυβ1 can be used as an FMDV receptor.} }