tetano
Editor, Senior Moderator
Biochem Biophys Res Commun. 2019 Dec 13. pii: S0006-291X(19)32363-0. doi: 10.1016/j.bbrc.2019.12.043. [Epub ahead of print] [h=1]Isocorilagin, isolated from Canarium album (Lour.) Raeusch, as a potent neuraminidase inhibitor against influenza A virus.[/h]
Chen F[SUP]1[/SUP], Yang L[SUP]1[/SUP], Huang Y[SUP]1[/SUP], Chen Y[SUP]1[/SUP], Sang H[SUP]1[/SUP], Duan W[SUP]2[/SUP], Yang J[SUP]3[/SUP].
[h=3]Author information[/h] 1 Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China. 2 Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China. Electronic address: wjduan@smu.edu.cn. 3 Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China. Electronic address: yj528@smu.edu.cn.
[h=3]Abstract[/h] Canarium album (Lour.) Raeusch (C. album) as a normally medicinal and edible plant has been used widely in Asian countries and is considered a source of phytochemicals that are beneficial to human health. Here, we showed at the first time isocorilagin, a polyphenolic compound isolated from C. album, displayed antiviral activity against diverse strains of influenza A virus (IAV), including A/Puerto Rico/8/34 (H1N1), A/Aichi/2/68 (H3N2) and NA-H274Y (H1N1) with IC[SUB]50[/SUB] value of 9.19 ? 1.99, 23.72 ? 2.51 and 4.64 ? 3.01 μM, respectively. Further mechanistic studies revealed that it clearly inhibited neuraminidase activity of IAV and directly influenced the virus release. The molecular docking studies presented isocorilagin could bind to the highly conserved residues in the active sites of NA, implying that isocorilagin may be effective against various influenza strains and not susceptible to produce drug resistance. Taken together, the results strongly suggest that isocorilagin has potential to be an effective, safe and affordable neuraminidase inhibitor against a diverse panel of IAV strains. More importantly, our work expands the biological activities of C. album extracts and provide a new option for the development of anti-influenza drug.
Copyright ? 2019 Elsevier Inc. All rights reserved.
[h=4]KEYWORDS:[/h] Canarium album (Lour.) Raeusch; Influenza A virus; Isocorilagin; Neuraminidase inhibitor
PMID: 31843192 DOI: 10.1016/j.bbrc.2019.12.043
Chen F[SUP]1[/SUP], Yang L[SUP]1[/SUP], Huang Y[SUP]1[/SUP], Chen Y[SUP]1[/SUP], Sang H[SUP]1[/SUP], Duan W[SUP]2[/SUP], Yang J[SUP]3[/SUP].
[h=3]Author information[/h] 1 Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China. 2 Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China. Electronic address: wjduan@smu.edu.cn. 3 Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China. Electronic address: yj528@smu.edu.cn.
[h=3]Abstract[/h] Canarium album (Lour.) Raeusch (C. album) as a normally medicinal and edible plant has been used widely in Asian countries and is considered a source of phytochemicals that are beneficial to human health. Here, we showed at the first time isocorilagin, a polyphenolic compound isolated from C. album, displayed antiviral activity against diverse strains of influenza A virus (IAV), including A/Puerto Rico/8/34 (H1N1), A/Aichi/2/68 (H3N2) and NA-H274Y (H1N1) with IC[SUB]50[/SUB] value of 9.19 ? 1.99, 23.72 ? 2.51 and 4.64 ? 3.01 μM, respectively. Further mechanistic studies revealed that it clearly inhibited neuraminidase activity of IAV and directly influenced the virus release. The molecular docking studies presented isocorilagin could bind to the highly conserved residues in the active sites of NA, implying that isocorilagin may be effective against various influenza strains and not susceptible to produce drug resistance. Taken together, the results strongly suggest that isocorilagin has potential to be an effective, safe and affordable neuraminidase inhibitor against a diverse panel of IAV strains. More importantly, our work expands the biological activities of C. album extracts and provide a new option for the development of anti-influenza drug.
Copyright ? 2019 Elsevier Inc. All rights reserved.
[h=4]KEYWORDS:[/h] Canarium album (Lour.) Raeusch; Influenza A virus; Isocorilagin; Neuraminidase inhibitor
PMID: 31843192 DOI: 10.1016/j.bbrc.2019.12.043