Iminosugars: promising therapeutics for influenza infection

Influenza virus causes three to five million severe respiratory infections per year in seasonal epidemics, and sporadic pandemics, three of which occurred in the 20th century and are a continuing global threat. Currently licensed antivirals exclusively target the viral neuraminidase or M2 ion channe...

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Main Authors: Tyrrell, B, Sayce, A, Warfield, K, Miller, J, Zitzmann, N
Format: Journal article
Published: Taylor and Francis 2016
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author Tyrrell, B
Sayce, A
Warfield, K
Miller, J
Zitzmann, N
author_facet Tyrrell, B
Sayce, A
Warfield, K
Miller, J
Zitzmann, N
author_sort Tyrrell, B
collection OXFORD
description Influenza virus causes three to five million severe respiratory infections per year in seasonal epidemics, and sporadic pandemics, three of which occurred in the 20th century and are a continuing global threat. Currently licensed antivirals exclusively target the viral neuraminidase or M2 ion channel, and emerging drug resistance necessitates the development of novel therapeutics. It is believed that a host-targeted strategy may combat the development of antiviral drug resistance. To this end, a class of molecules known as iminosugars, hydroxylated carbohydrate mimics with the endocyclic oxygen atom replaced by a nitrogen atom, are being investigated for their broad-spectrum antiviral potential. The influenza virus glycoproteins, haemagglutinin and neuraminidase, are susceptible to inhibition of endoplasmic reticulum α-glucosidases by certain iminosugars, leading to reduced virion production or infectivity, demonstrated by in vitro and in vivo studies. In some experiments, viral strain-specific effects are observed. Iminosugars may also inhibit other host and virus targets with antiviral consequences. While investigations of anti-influenza iminosugar activities have been conducted since the 1980s, recent successes of nojirimycin derivatives have re-invigorated investigation of the therapeutic potential of iminosugars as orally available, low cytotoxicity, effective anti-influenza drugs.
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spelling oxford-uuid:79312d24-e5ef-463a-aa6a-6d55ff27c86b2022-03-26T20:35:48ZIminosugars: promising therapeutics for influenza infectionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:79312d24-e5ef-463a-aa6a-6d55ff27c86bSymplectic Elements at OxfordTaylor and Francis2016Tyrrell, BSayce, AWarfield, KMiller, JZitzmann, NInfluenza virus causes three to five million severe respiratory infections per year in seasonal epidemics, and sporadic pandemics, three of which occurred in the 20th century and are a continuing global threat. Currently licensed antivirals exclusively target the viral neuraminidase or M2 ion channel, and emerging drug resistance necessitates the development of novel therapeutics. It is believed that a host-targeted strategy may combat the development of antiviral drug resistance. To this end, a class of molecules known as iminosugars, hydroxylated carbohydrate mimics with the endocyclic oxygen atom replaced by a nitrogen atom, are being investigated for their broad-spectrum antiviral potential. The influenza virus glycoproteins, haemagglutinin and neuraminidase, are susceptible to inhibition of endoplasmic reticulum α-glucosidases by certain iminosugars, leading to reduced virion production or infectivity, demonstrated by in vitro and in vivo studies. In some experiments, viral strain-specific effects are observed. Iminosugars may also inhibit other host and virus targets with antiviral consequences. While investigations of anti-influenza iminosugar activities have been conducted since the 1980s, recent successes of nojirimycin derivatives have re-invigorated investigation of the therapeutic potential of iminosugars as orally available, low cytotoxicity, effective anti-influenza drugs.
spellingShingle Tyrrell, B
Sayce, A
Warfield, K
Miller, J
Zitzmann, N
Iminosugars: promising therapeutics for influenza infection
title Iminosugars: promising therapeutics for influenza infection
title_full Iminosugars: promising therapeutics for influenza infection
title_fullStr Iminosugars: promising therapeutics for influenza infection
title_full_unstemmed Iminosugars: promising therapeutics for influenza infection
title_short Iminosugars: promising therapeutics for influenza infection
title_sort iminosugars promising therapeutics for influenza infection
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AT saycea iminosugarspromisingtherapeuticsforinfluenzainfection
AT warfieldk iminosugarspromisingtherapeuticsforinfluenzainfection
AT millerj iminosugarspromisingtherapeuticsforinfluenzainfection
AT zitzmannn iminosugarspromisingtherapeuticsforinfluenzainfection