Inhibition of influenza virus infection in mice by pulmonary administration of a spray dried antiviral

Rick Heida, Paulo H Jacob Silva, Renate Akkerman, Jill Moser, Jacqueline de Vries-Idema, Aurélien Bornet, Sujeet Pawar, Francesco Stellacci, Henderik W Frijlink, Anke L W Huckriede, Wouter L J Hinrichs*

*Corresponding author voor dit werk

OnderzoeksoutputAcademicpeer review

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Increasing resistance to antiviral drugs approved for the treatment of influenza urges the development of novel compounds. Ideally, this should be complemented by a careful consideration of the administration route. 6'siallyllactosamine-functionalized β-cyclodextrin (CD-6'SLN) is a novel entry inhibitor that acts as a mimic of the primary attachment receptor of influenza, sialic acid. In this study, we aimed to develop a dry powder formulation of CD-6'SLN to assess its in vivo antiviral activity after administration via the pulmonary route. By means of spray drying the compound together with trileucine, a dispersion enhancer, we created a powder that retained the antiviral effect of the drug, remained stable under elevated temperature conditions and performed well in a dry powder inhaler. To test the efficacy of the dry powder drug against influenza infection in vivo, infected mice were treated with CD-6'SLN using an aerosol generator that allowed for the controlled administration of powder formulations to the lungs of mice. CD-6'SLN was effective in mitigating the course of the disease compared to the control groups, reflected by lower disease activity scores and by the prevention of virus-induced IL-6 production. Our data show that CD-6'SLN can be formulated as a stable dry powder that is suitable for use in a dry powder inhaler and is effective when administered via the pulmonary route to influenza-infected mice.

Originele taal-2English
Artikelnummer114507
Aantal pagina's9
TijdschriftEuropean journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V
Volume204
Vroegere onlinedatum18-sep.-2024
DOI's
StatusPublished - nov.-2024

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