The uncoating of EV71 in mature late endosomes requires CD-M6PR

Autor: Seii Ohka, Soon Hao Tan, Eri Ishiyama, Katsutoshi Ogasawara, Tomohito Hanasaka, Kinji Ishida, Kyoji Hagiwara, Chia-Chyi Liu, Pele Choi-Sing Chong, Ken-ichi Hanaki, Giampietro Schiavo
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Biology Open, Vol 11, Iss 9 (2022)
Druh dokumentu: article
ISSN: 2046-6390
DOI: 10.1242/bio.059469
Popis: Enterovirus 71 (EV71) is one of the causative agents of hand-foot-and-mouth disease, which in some circumstances could lead to severe neurological diseases. Despite of its importance for human health, little is known about the early stages of EV71 infection. EV71 starts uncoating with its receptor, human scavenger receptor B2 (hSCARB2), at low pH. We show that EV71 was not targeted to lysosomes in human rhabdomyosarcoma cells overexpressing hSCARB2 and that the autophagic pathway is not essential for EV71 productive uncoating. Instead, EV71 was efficiently uncoated 30 min after infection in late endosomes (LEs) containing hSCARB2, mannose-6-phosphate receptor (M6PR), RAB9, bis(monoacylglycero)phosphate and lysosomal associated membrane protein 2 (LAMP2). Furthering the notion that mature LEs are crucial for EV71 uncoating, cation-dependent (CD)-M6PR knockdown impairs EV71 infection. Since hSCARB2 interacts with cation-independent (CI)-M6PR through M6P-binding sites and CD-M6PR also harbor a M6P-binding site, CD-M6PR is likely to play important roles in EV71 uncoating in LEs.
Databáze: Directory of Open Access Journals