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Ephedrannin B exerts anti-viral and anti-inflammatory properties in BEAS-2B cells infected with respiratory syncytial virus

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Abstract

Ephedrannin B (EPB) has been shown to exert anti-inflammatory effects. However, the effect of EPB on respiratory syncytial virus infection (RSV) is not known. In this study, the cytotoxic effect of EPB was evaluated in BEAS-2B cells using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Reverse transcription quantitative polymerase chain reaction and Western blot assays were performed to determine the expression of target genes. The anti-viral effect of EPB was assessed by determining viral titers using plaque assay. We found that RSV infection caused a marked increase in interleukin (IL)-6, IL-8, IL-1β and tumor necrosis factor (TNF)-α production and release, which was concentration-dependently attenuated by EPB treatment. Furthermore, EPB decreased the expression of RSV fusion gene in RSV-infected BEAS-2B cells. Concomitantly, EPB treatment led to an obvious inhibition of viral replication in BEAS-2B cells. Besides, EPB suppressed RSV-induced mitogen-activated protein kinase/nuclear factor kappa-light-chain-enhancer of activated B cells signaling. In conclusion, EPB exerts anti-viral and anti-inflammatory properties in BEAS-2B cells infected with RSV.

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Authors and Affiliations

  1. Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China

    Shu Hou, Xiaoyan Xu & Yating Wang

  2. Department of Pharmacology, Anhui Medical University, Hefei, China

    Yan Yang

Authors
  1. Shu Hou
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  2. Xiaoyan Xu
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  3. Yating Wang
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  4. Yan Yang
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Correspondence to Shu Hou.

Additional information

Corresponding editor: Rajiv K Saxena

Corresponding editor: Rajiv K Saxena

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Hou, S., Xu, X., Wang, Y. et al. Ephedrannin B exerts anti-viral and anti-inflammatory properties in BEAS-2B cells infected with respiratory syncytial virus. J Biosci 45, 46 (2020). https://doi.org/10.1007/s12038-020-0016-y

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  • DOI: https://doi.org/10.1007/s12038-020-0016-y

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