Abstract:
:Naproxen is a non-steroidal anti-inflammatory drug that has previously been shown to exert antiviral activity against influenza A virus by inhibiting nucleoprotein (NP) binding to RNA. Here, we show that naproxen is a potential broad, multi-mechanistic anti-influenza virus therapeutic, as it inhibits influenza B virus replication both in vivo and in vitro. The anti-influenza B virus activity of naproxen is more efficient than that of the commonly used neuraminidase inhibitor oseltamivir in mice. Furthermore, the NP of influenza B virus (BNP) has a higher binding affinity to naproxen than influenza A virus NP (ANP). Specifically, naproxen targets the NP at residues F209 (BNP) and Y148 (ANP). This interaction antagonizes the nuclear export of NP normally mediated by the host export protein CRM1. This study reveals a crucial mechanism of broad-spectrum anti-influenza virus activity of naproxen, suggesting that the existing drug naproxen may be used as an anti-influenza drug.
journal_name
Cell Repjournal_title
Cell reportsauthors
Zheng W,Fan W,Zhang S,Jiao P,Shang Y,Cui L,Mahesutihan M,Li J,Wang D,Gao GF,Sun L,Liu Wdoi
10.1016/j.celrep.2019.04.053subject
Has Abstractpub_date
2019-05-07 00:00:00pages
1875-1885.e5issue
6issn
2211-1247pii
S2211-1247(19)30526-1journal_volume
27pub_type
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