Paeoniflorin reduce luxS/AI-2 system-controlled biofilm formation and virulence in Streptococcus suis.
Paeoniflorin reduce luxS/AI-2 system-controlled biofilm formation and virulence in Streptococcus suis.
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芍药苷可减少猪链球菌中 luxS/AI-2 系统控制的生物膜形成和毒力。
DOI:
10.1080/21505594.2021.2010398
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发表时间:
2021-12
期刊:
影响因子:
5.2
通讯作者:
Wang Y
中科院分区:
文献类型:
--
作者:
Li J;Fan Q;Jin M;Mao C;Zhang H;Zhang X;Sun L;Grenier D;Yi L;Hou X;Wang Y
Streptococcus suis (S. suis), more specifically serotype 2, is a bacterial pathogen that threatens the lives of pigs and humans. Like many other pathogens, S. suis exhibits quorum sensing (QS) system-controlled virulence factors, such as biofilm formation that complicates treatment. Therefore, impairing the QS involving LuxS/AI-2 cycle in S. suis, may be a promising alternative strategy for overcoming S. suis infections. In this study, we investigated paeoniflorin (PF), a monoterpenoid glycoside compound extracted from peony, as an inhibitor of S. suis LuxS/AI-2 system. At a sub-minimal inhibitory concentration (MIC) (1/16 MIC; 25 μg/ml), PF significantly reduced biofilm formation by S. suis through inhibition of extracellular polysaccharide (EPS) production, without affecting bacterial growth. Moreover, evidence was brought that PF reduces AI-2 activity in S. suis biofilm. Molecular docking indicated that LuxS may be the target of PF. Monitoring LuxS enzymatic activity confirmed that PF had a partial inhibitory effect. Finally, we showed that the use of PF in a mouse model can relieve S. suis infections. This study highlighted the anti-biofilm potential of PF against S. suis, and brought evidence that it may as an inhibitor of the LuxS/AI-2 system to prevent S. suis biofilm-related infections. PF can thus be used as a new type of natural biofilm inhibitor for clinical application.
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影响因子:
5.6
作者:
Wang S;Wang C;Gao L;Cai H;Zhou Y;Yang Y;Xu C;Ding W;Chen J;Muhammad I;Chen X;He X;Liu D;Li Y
通讯作者:
Li Y
影响因子:
5.1
作者:
Domenech, Mirian;Garcia, Ernesto;Moscoso, Miriam
通讯作者:
Moscoso, Miriam
影响因子:
4.6
作者:
Maisuria VB;Los Santos YL;Tufenkji N;Déziel E
通讯作者:
Déziel E
影响因子:
2.7
作者:
Allison, DG
通讯作者:
Allison, DG
影响因子:
5.6
作者:
Kong, Xue;Leng, Dongni;Liu, Weida
通讯作者:
Liu, Weida