Autophagy Promotes Infectious Particle Production of Mopeia and Lassa Viruses
AbstractLassa virus (LASV) and Mopeia virus (MOPV) are two closely related Old-World mammarenaviruses. LASV causes severe hemorrhagic fever with high mortality in humans, whereas no case of MOPV infection has been reported. Comparing MOPV and LASV is a powerful strategy to unravel pathogenic mechanisms that occur during the course of pathogenic arenavirus infection. We used a yeast two-hybrid approach to identify cell partners of MOPV and LASV Z matrix protein in which two autophagy adaptors were identified, NDP52 and TAX1BP1. Autophagy has emerged as an important cellular defense mechanism against viral infections but its role during arenavirus infection has not been shown. Here, we demonstrate that autophagy is transiently induced by MOPV, but not LASV, in infected cells two days after infection. Impairment of the early steps of autophagy significantly decreased the production of MOPV and LASV infectious particles, whereas a blockade of the degradative steps impaired only MOPV infectious particle production. Our study provides insights into the role played by autophagy during MOPV and LASV infection and suggests that this process could partially explain their different pathogenicity. View Full-Text
Share & Cite This Article
Baillet, N.; Krieger, S.; Journeaux, A.; Caro, V.; Tangy, F.; Vidalain, P.-O.; Baize, S. Autophagy Promotes Infectious Particle Production of Mopeia and Lassa Viruses. Viruses 2019, 11, 293.
Baillet N, Krieger S, Journeaux A, Caro V, Tangy F, Vidalain P-O, Baize S. Autophagy Promotes Infectious Particle Production of Mopeia and Lassa Viruses. Viruses. 2019; 11(3):293.Chicago/Turabian Style
Baillet, Nicolas; Krieger, Sophie; Journeaux, Alexandra; Caro, Valérie; Tangy, Frédéric; Vidalain, Pierre-Olivier; Baize, Sylvain. 2019. "Autophagy Promotes Infectious Particle Production of Mopeia and Lassa Viruses." Viruses 11, no. 3: 293.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.