ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2019, Vol. 50 ›› Issue (7): 1500-1508.doi: 10.11843/j.issn.0366-6964.2019.07.020

• CLINICAL VETERINARY MEDICINE • Previous Articles     Next Articles

Effect of Zhu Qin Extractive Fluid on the Proliferation and Transcription of Inflammatory Factors in LPS-injured IPEC-J2 Cells

WANG Zhongqing1, LIN Chunfa1, ZHONG Wenjie1, LUO Yichen1,2, ZHU Zhaorong1,2, LIU Juan1,2*   

  1. 1. College of Animal Science, Southwest University, Chongqing 402460, China;
    2. Chinese Veterinary Herbal Drugs Innovation Research Lab, University Veterinary Science Engineering Research Center in Chongqing, Chongqing 402460, China
  • Received:2019-01-14 Online:2019-07-23 Published:2019-07-23

Abstract: The objective of this study was to investigate the effect of Zhu Qin Extractive Fluid (ZQEF) on the proliferation and transcription of inflammatory factors in IPEC-J2 cells injured by lipopolysaccharide (LPS). Principal active component were identified by TLC and the content of baicalin was determined by HPLC in ZQEF. IPEC-J2 cells were randomly divided into control group, LPS model group and drug group Ⅰ, Ⅱ, Ⅲ, Ⅳ, and Ⅴ (concentration of ZQEF in each group was 10-1, 10-2, 10-3, 10-4, 10-5 g·mL-1, respectively), each group set up 5 holes, 104 cells·hole-1. The proliferative rate of cells were determined by MTT method, and the mRNA transcription changes of TFF3, TNF-α and IL-8 were measured by qRT-PCR. The results showed:the main therapeutic ingredients include baicalin, astragaloside and atractylenolide-Ⅰ, and the content of baicalin was 1.469 8% in ZQEF. Compared with the control group, the proliferative rate of cells highly decreased, and the mRNA transcription of TFF3, TNF-α and IL-8 extremely increased in LPS model group (P<0.01). Compared with the LPS model group, the proliferative rate of cells highly enhanced in drug group Ⅱ (10-2g·mL-1) and Ⅲ (10-3 g·mL-1) (P<0.01 and P<0.05 respectively), the mRNA transcription of TFF3 and TNF-α significantly down-regulated (P<0.01), and the mRNA transcription of IL-8 down-regulated in drug group Ⅱ, non-significantly (P>0.05). The results suggest that ZQEF could facilitate the proliferation of IPEC-J2 cells injured by LPS, inhibit the transcription of inflammatory factors, which may be connected with effect of repairing the intestinal mucosa.

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