ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (1): 79-84.doi: 10.11843/j.issn.0366-6964.2016.01.011

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LPS Induces SBD-1 Expression via TLR4 in Ovine Oviduct Epithelial Cells

LI Qi,ZHI Da-fu,YAN Qin,LIU Mo-ning,ZHENG Xin-xin,CAO Gui-fang*   

  1. (Center of Histology and Developmental Biology,College of Veterinary Medicine,Inner Mongolia Agricultural University,Huhhot 010018,China)
  • Received:2015-06-02 Online:2016-01-23 Published:2016-01-23

Abstract:

 The aim of this study was to explore the effect of lipopolyscharride (LPS) on induction of sheep beta defensin-1 (SBD-1) in ovine oviduct epithelial cells (OOECs).In this study,OOECs were cultured and then exposed to LPS for up to 24 hours,with a range of concentrations (10 ng•mL-1-1 mg•mL-1).qRT-PCR was performed to detect SBD-1 mRNA.The results showed that LPS stimulated the expression of SBD-1 in a time-(maximal at 12 hours) and concentration-(maximal at 100 ng•mL-1) dependent manner.Moreover,IHC staining showed that SBD-1 was mainly expressed in epithelial cells.Importantly,TLR4 was detected in OOECs and stimulated by LPS.LPS induced SBD-1 mRNA expression was markedly inhibited by blockage of TLR4 activity using anti-TLR4 antibody.In conclusion,these results suggest that LPS might induce the expression of SBD-1 in the ovine oviduct epithelial cells,and the expression are mediated by TLR4.

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