Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM Proteins

Interferon-induced transmembrane proteins (IFITMs) are a family of proteins which inhibit infections of various enveloped viruses. While their general mechanism of inhibition seems to be non-specific, involving the tightening of membrane structures to prevent fusion between the viral envelope and ce...

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Main Authors: Thomas Marceau, Martine Braibant
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/16/2/254
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author Thomas Marceau
Martine Braibant
author_facet Thomas Marceau
Martine Braibant
author_sort Thomas Marceau
collection DOAJ
description Interferon-induced transmembrane proteins (IFITMs) are a family of proteins which inhibit infections of various enveloped viruses. While their general mechanism of inhibition seems to be non-specific, involving the tightening of membrane structures to prevent fusion between the viral envelope and cell membrane, numerous studies have underscored the importance of viral envelope proteins in determining the susceptibility of viruses to IFITMs. Mutations in envelope proteins may lead to viral escape from direct interaction with IFITM proteins or result in indirect resistance by modifying the viral entry pathway, allowing the virus to modulate its exposure to IFITMs. In a broader context, the nature of viral envelope proteins and their interaction with IFITMs can play a crucial role in the context of adaptive immunity, leading to viral envelope proteins that are more susceptible to antibody neutralization. The precise mechanisms underlying these observations remain unclear, and further studies in this field could contribute to a better understanding of how IFITMs control viral infections.
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spelling doaj.art-39c346d8365746008b2f44e7d6ca624d2024-02-23T15:37:37ZengMDPI AGViruses1999-49152024-02-0116225410.3390/v16020254Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM ProteinsThomas Marceau0Martine Braibant1Inserm U1259 MAVIVH, Université de Tours, 37032 Tours, FranceInserm U1259 MAVIVH, Université de Tours, 37032 Tours, FranceInterferon-induced transmembrane proteins (IFITMs) are a family of proteins which inhibit infections of various enveloped viruses. While their general mechanism of inhibition seems to be non-specific, involving the tightening of membrane structures to prevent fusion between the viral envelope and cell membrane, numerous studies have underscored the importance of viral envelope proteins in determining the susceptibility of viruses to IFITMs. Mutations in envelope proteins may lead to viral escape from direct interaction with IFITM proteins or result in indirect resistance by modifying the viral entry pathway, allowing the virus to modulate its exposure to IFITMs. In a broader context, the nature of viral envelope proteins and their interaction with IFITMs can play a crucial role in the context of adaptive immunity, leading to viral envelope proteins that are more susceptible to antibody neutralization. The precise mechanisms underlying these observations remain unclear, and further studies in this field could contribute to a better understanding of how IFITMs control viral infections.https://www.mdpi.com/1999-4915/16/2/254IFITMvirusenveloperestrictionescapesusceptibility
spellingShingle Thomas Marceau
Martine Braibant
Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM Proteins
Viruses
IFITM
virus
envelope
restriction
escape
susceptibility
title Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM Proteins
title_full Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM Proteins
title_fullStr Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM Proteins
title_full_unstemmed Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM Proteins
title_short Role of Viral Envelope Proteins in Determining Susceptibility of Viruses to IFITM Proteins
title_sort role of viral envelope proteins in determining susceptibility of viruses to ifitm proteins
topic IFITM
virus
envelope
restriction
escape
susceptibility
url https://www.mdpi.com/1999-4915/16/2/254
work_keys_str_mv AT thomasmarceau roleofviralenvelopeproteinsindeterminingsusceptibilityofvirusestoifitmproteins
AT martinebraibant roleofviralenvelopeproteinsindeterminingsusceptibilityofvirusestoifitmproteins