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Acta Virol. 2018;62(2):220-225. doi: 10.4149/av_2018_206.

Kaempferol inhibited bovine herpesvirus 1 replication and LPS-induced inflammatory response.


Plant-derived flavonoids contain large amount of compounds with pharmacological effects. In this study, we showed the compound Kaempferol to have robust antiviral activity against bovine herpesvirus 1 (BoHV-1) replication in vitro. Kaempferol at a concentration of 100 μmol/l completely inhibited viral replication in MDBK cells. It mainly affects the viral replication at the post-entry stages. The inhibition of Akt signaling is a potential mechanism underlying the antiviral effect of Kaempferol. In addition, at a concentration of 25 and 50 μmol/l Kaempferol could significantly reduce the expression of inflammatory mediators such as tumor necrosis factor alpha (TNF-α), interleukin-8 (IL-8) and macrophage inflammatory protein 1 alpha (MIP-1α) in human promonocytic U937 cells-derived macrophages (dU937) in response to lipopolysaccharides (LPS) stimulation. Overall, our results indicated that Kaempferol provides a potent protection against BoHV-1 infection and LPS-induced inflammatory response.


BoHV-1; inflammation; Kaempferol; cytokine.

[Indexed for MEDLINE]

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