Understanding the cell biological mechanisms underlying the broad-spectrum antiviral function of Interferon Induced Transmembrane (IFITM) proteins

Camilla Benfield (primary)
Pathobiology and Population Sciences
Royal Veterinary College (RVC)
Mark Marsh (secondary)
MRC-LMCB
UCL

Abstract

Interferon-induced transmembrane (IFITM) proteins are host cell factors with potent inhibitory activity against numerous pathogenic and zoonotic viruses. IFITMs have been proposed to act by increasing the rigidity of cellular membranes, with IFITM protein localised at sites of virus entry. We will determine how the subcellular targeting and trafficking of IFITMs affect their antiviral functions. IFITMs of different species and site-directed mutants will be systematically analysed using bioinformatic, biochemical and imaging methods for their restriction of various viruses. Mechanistic insights gained will help define how IFITMs could be used therapeutically or prophylactically in human and veterinary medicine against viruses.


References

Benfield C, Smith SE, Wright E, Wash RS, Ferrara F, Temperton NJ & Kellam P. 2015. Bat and pig Interferon-Induced Transmembrane Protein 3 restrict cell entry by influenza virus and lyssaviruses. Journal of General Virology doi: 10.1099/vir.0.000058

Weston S, Czieso S, White IJ, Kellam P, Marsh M. 2016 Alphavirus restriction by IFITM proteins. Traffic doi: 10.1111/tra.12416

Smith S, Weston S, Kellam P, Marsh M. 2014 IFITM proteins – cellular inhibitors of viral entry. Curr Opinions in Virol. 4:71-77.


BBSRC Area
Animal disease, health and welfare
Area of Biology
Cell BiologyImmunology
Techniques & Approaches
BiochemistryBioinformaticsGeneticsMicroscopy / ElectrophysiologyMolecular Biology