title: Characterisation of enterovirus 71 replication kinetics in human colorectal cell line, HT29.
abstract: Hand, Foot and Mouth Disease (HFMD), a contagious viral disease that commonly affects infants and children with blisters and flu like symptoms, is caused by a group of enteroviruses such as Enterovirus 71 (EV71) and coxsackievirus A16 (CA16). However some HFMD caused by EV71 may further develop into severe neurological complications such as encephalitis and meningitis. The route of transmission was postulated that the virus transmit from one person to another through direct contact of vesicular fluid or droplet from the infected or via faecal-oral route. To this end, this study utilised a human colorectal adenocarcinoma cell line (HT29) with epithelioid morphology as an in vitro model for the investigation of EV71 replication kinetics. Using qPCR, viral RNA was first detected in HT29 cells as early as 12 h post infection (hpi) while viral protein was first detected at 48 hpi. A significant change in HT29 cells' morphology was also observed after 48 hpi. Furthermore HT29 cell viability also significantly decreased at 72 hpi. Together, data from this study demonstrated that co-culture of HT29 with EV71 is a useful in vitro model to study the pathogenesis of EV71.
authors.affiliation: Centre for Biomedical and Life Sciences, Singapore Polytechnic, Singapore, Singapore ; School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Australia ; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.
authors.forename: Yan Long Edmund
authors.initials: YL
authors.lastname: Lui
authors.forename: Peter
authors.initials: P
authors.lastname: Timms
authors.forename: Louise Marie
authors.initials: LM
authors.lastname: Hafner
authors.forename: Tuan Lin
authors.initials: TL
authors.lastname: Tan
authors.forename: Kian Hwa
authors.initials: KH
authors.lastname: Tan
authors.forename: Eng Lee
authors.initials: EL
authors.lastname: Tan
keywords: Colorectal cell; Enterovirus 71; Foot and mouth disease; Hand; Virus replication kinetics