当前位置: 首页 > 文章 > 食淀粉乳杆菌代谢产物对TGEV感染IPEC-J2细胞屏障功能的影响 中国畜牧兽医 2015,42 (8) 2194-2203
Position: Home > Articles > Effects of Lactobacillus amylovorus Metabolites on the Barrier Function of IPEC-J2 Cells Infected by TGEV China Animal Husbandry & Veterinary Medicine 2015,42 (8) 2194-2203

食淀粉乳杆菌代谢产物对TGEV感染IPEC-J2细胞屏障功能的影响

作  者:
田宗民;张萍;赵毅博;刘文娜;王子敬;张宏宇;张睿;魏萍
单  位:
东北农业大学
关键词:
食淀粉乳杆菌;猪传染性胃肠炎病毒;猪小肠上皮细胞
摘  要:
本研究采用荧光定量PCR方法,检测了IPEC-J2细胞不同时间点紧密连接蛋白3(claudin 3,CLDN-3)、细胞角蛋白8(cytokeratin 8,KRT8)、黏蛋白1(mucin 1,MUC1)3种蛋白mRNA的表达量变化。本试验将猪传染性胃肠炎病毒(TGEV)感染IPEC-J2细胞,探索食淀粉乳杆菌代谢产物是否通过维持或改善CLDN-3、KRT8、MUC1蛋白mRNA表达来增强细胞的屏障功能,是否对IPEC-J2细胞感染TGEV后的屏障功能产生影响。试验结果发现,正常细胞对照组MUC1、CLDN-3及KRT8蛋白mRNA表达量随时间没有显著变化(P>0.05),MRS培养基对照组与正常细胞对照组相比没有显著变化(P>0.05),食淀粉乳杆菌代谢产物单独处理组对细胞MUC1、CLDN-3及KRT8蛋白mRNA表达量呈显著上调作用(P<0.05);食淀粉乳杆菌代谢产物+TGEV试验组与病毒对照组相比,处理24、36和48h,MUC1、CLDN-3及KRT8蛋白的表达显著升高(P<0.05)。结果表明,食淀粉乳杆菌代谢产物不仅能提高MUC1、CLDN-3及KRT8在IPEC-J2细胞上的表达,还能负调节TGEV诱导的MUC1、CLDN-3及KRT8在IPEC-J2细胞上的表达,从而加强IPEC-J2细胞对TGEV感染的屏障功能。
译  名:
Effects of Lactobacillus amylovorus Metabolites on the Barrier Function of IPEC-J2 Cells Infected by TGEV
作  者:
TIAN Zong-min;ZHANG Ping;ZHAO Yi-bo;LIU Wen-na;WANG Zi-jing;ZHANG Hong-yu;ZHANG Rui;WEI Ping;Northeast Agricultural University;
关键词:
Lactobacillus amylovorus;;TGEV;;IPEC-J2
摘  要:
This study used Real-time PCR to detect the changes of expression quantity of claudin 3(CLDN-3),cytokeratin 8(KRT8)and mucin 1(MUC1)three proteins mRNA in IPEC-J2 cells at three different time points.IPEC-J2 cells were infected by TGEV,we explored whether Lactobacillus amylovorus metabolites could enhance cell barrier function by maintaining or improving mRNA expression of CLDN-3,KRT8 and MUC1,whether had effects on the barrier function of IPEC-J2 infected by TGEV.The results showed that mRNA expressions of MUC1,CLDN-3and KRT8 in the normal cell control group did not change significantly with time(P>0.05);MRS medium culture group did not change significantly compared to the normal cell control group(P>0.05);Gene expressions of MUC1,CLDN-3and KRT8 proteins in Lactobacillus amylovorus metabolites alone treatment group showed significant time-dependent effect(P<0.05).After being treated 24,36 and 48h,gene expressions of MUC1,CLDN-3and KRT8 proteins in Lactobacillus amylovorus metabolites+TGEV experiment group was significantly higher than virus control group(P <0.05).Lactobacillus amylovorus metabolites could improve MUC1,CLDN-3andKRT8 expressions in IPEC-J2 cells,while being able to negatively regulate MUC1,CLDN-3and KRT8 expressions that TGEV induced in IPEC-J2 cells,thereby inhencing the barrier function of IPEC-J2 cell against TGEV.

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