Abstract:
:DAS181 is an inhaled bacterial sialidase which functions by removing sialic acid (Sia) from the surface of epithelial cells, preventing attachment and subsequent infection by respiratory viruses that utilize Sia as a receptor. DAS181 is typical of bacterial sialidases in cleaving Sia α2-3 and Sia α2-6 linkages, and it also has a demonstrated effect against acetylated and hydroxylated forms of Sia. The potency of the compound has been enhanced by coupling the active sialidase with an amphiregulin tag, allowing a longer duration of action and minimizing spread to the systemic circulation. DAS181 is now in Phase II development for the treatment of influenza, and it has also demonstrated activity in individual cases of parainfluenza in immunosuppressed patients. Continued evaluation of the roles and activities of bacterial sialidases is required to expand the range of successful antiviral therapies targeting Sia or its derivatives.
journal_name
Antiviral Resjournal_title
Antiviral researchauthors
Nicholls JM,Moss RB,Haslam SMdoi
10.1016/j.antiviral.2013.04.012subject
Has Abstractpub_date
2013-06-01 00:00:00pages
401-9issue
3eissn
0166-3542issn
1872-9096pii
S0166-3542(13)00098-3journal_volume
98pub_type
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