Ikrame Aknouch, Inés García-Rodríguez, Francesca Paola Giugliano, Carlemi Calitz, Gerrit Koen, Hetty van Eijk, Nina Johannessson, Sjoerd Rebers, Lieke Brouwer, Vanesa Muncan, Koert J Stittelaar, Dasja Pajkrt, Katja C Wolthers, Adithya Sridhar
UNLABELLED: Enterovirus A71 (EV-A71) can elicit a wide variety of human diseases such as hand, foot, and mouth disease and severe or fatal neurological complications. It is not clearly understood what determines the virulence and fitness of EV-A71. It has been observed that amino acid changes in the receptor binding protein, VP1, resulting in viral binding to heparan sulfate proteoglycans (HSPGs) may be important for the ability of EV-A71 to infect neuronal tissue. In this study, we identified that the presence of glutamine, as opposed to glutamic acid, at VP1-145 is key for viral infection in a 2D human fetal intestinal model, consistent with previous findings in an airway organoid model...
2023: Frontiers in Microbiology