ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (3): 609-614.doi: 10.11843/j.issn.0366-6964.2016.03.026

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Effects of Jin-Ying-Tang on Correlated Molecules of Toll-like Receptor 4 Signaling of LPS-Induced Mouse Mammary Epithelial Cells in vitro

LI Xin1,2,LI Zhong-gai1,2,ZHANG Xiao-yi1,2,ZHOU Song-gui1,3,WANG Yu-kun1,2,FENG Jiang1,2,YI Qiong1,WANG Lu1*   

  1. (1.Biochemistry Engineering Center of Guizhou Province,Guizhou University,Guiyang 550025,China;2.College of Animal Science,Guizhou University,Guiyang 550025,China;3.College of Pharmacy,Guizhou University,Guiyang 550025,China)
  • Received:2015-08-12 Online:2016-03-23 Published:2016-03-23

Abstract:

The study was conducted to investigate the effects of Jin-Ying-Tang (JYT) on correlated molecules of TLR4NF-κB signaling of LPS-stimulated mouse mammary epithelial cells(MECs) in vitro and explore its underlying molecular mechanisms.ELISA was performed to detect changes of the content of IL-8 and TNF-α in the culture supernatants.The mRNA transcription of TLR4-NF-κB signaling molecules such as IL-1 receptor-associated kinase-1(IRAK-1),tumour necrosis factor receptor associated factor 6(TRAF-6),Transforming Growth Factor activated kinase 1(TAK-1),NF-κB inducing kinase(NIK),Inhibitor of κB(IκB) were determined by qRT-PCR.The results showed that JYT could significantly decrease the expression of IL-8 and TNF-α in LPS-stimulated MECs(P<0.05,P<0.01);what’s more,JYT could down-regulate the expression of IRAK-1,TRAF-6,TAK-1,IκBNIK mRNA activated by LPS(P<0.05,P<0.01).It is concluded that JYT attenuates LPS-induced inflammatory response in MECs by inhibiting the activitation of IRAK-1/TRAF-6/TAK-1/NIK pathway,but not of IRAK-1/TRAF-6/TAK-1/IκB pathway.

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