2011
DOI: 10.1371/journal.ppat.1002337
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IFITM3 Inhibits Influenza A Virus Infection by Preventing Cytosolic Entry

Abstract: To replicate, viruses must gain access to the host cell's resources. Interferon (IFN) regulates the actions of a large complement of interferon effector genes (IEGs) that prevent viral replication. The interferon inducible transmembrane protein family members, IFITM1, 2 and 3, are IEGs required for inhibition of influenza A virus, dengue virus, and West Nile virus replication in vitro. Here we report that IFN prevents emergence of viral genomes from the endosomal pathway, and that IFITM3 is both necessary and … Show more

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Cited by 360 publications
(511 citation statements)
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“…3E). This level of inhibition indicated a block at or before primary translation, which is consistent with previous mechanistic studies on these two genes (30,31,33). IFI6-and STAT2-expressing cells were indistinguishable from control cells at the 12-h time point.…”
Section: Resultssupporting
confidence: 90%
“…3E). This level of inhibition indicated a block at or before primary translation, which is consistent with previous mechanistic studies on these two genes (30,31,33). IFI6-and STAT2-expressing cells were indistinguishable from control cells at the 12-h time point.…”
Section: Resultssupporting
confidence: 90%
“…This result argues against the possibility that PKH67 particles or PKH67-induced clustering of exosomes have a role in ISG induction. In vivo, IFITM proteins have various physiological functions and expression patterns, possibly explaining why we did not detect IFITM3 induction in bulk tonsil cell populations (41,42). As a clear sign of activation, CD40 surface expression was increased in pDCs upon interaction with unstained EBV + LCL exosomes (Fig.…”
Section: Exosomes From Latent Ebv-infected Cells Target Primary Tonsimentioning
confidence: 88%
“…De plus, elles subissent différentes modifications posttraductionnelles : phosphorylation de la tyrosine 20 [25], palmitoylation des cystéines 71, 72 et 104 [26], ubiquitination de la lysine 24 [21] et monométhylation de la lysine 88 [27]. Le rôle de toutes ces modifications n'est pas encore bien compris, et ne repose que sur des corrélations : la palmitoylation est importante pour la fonction antivirale [21,26], tandis que la phosphorylation [25,28] [29], et avec CD63 [30]). De plus, en présence des IFITM, ces études de microscopie confocale ont observé un accroissement des compartiments endosomaux, une acidification excessive [29], ainsi que l'accumulation de cholestérol [30] dans ces compartiments.…”
Section: Revuesunclassified
“…Le rôle de toutes ces modifications n'est pas encore bien compris, et ne repose que sur des corrélations : la palmitoylation est importante pour la fonction antivirale [21,26], tandis que la phosphorylation [25,28] [29], et avec CD63 [30]). De plus, en présence des IFITM, ces études de microscopie confocale ont observé un accroissement des compartiments endosomaux, une acidification excessive [29], ainsi que l'accumulation de cholestérol [30] dans ces compartiments. Les IFITM naissent dans le réticulum endoplasmique, puis transitent par l'appareil de Golgi pour atteindre la membrane plasmique.…”
Section: Revuesunclassified
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