旋毛虫ES抗原对小鼠巨噬细胞TLR2/4mRNA表达的影响  

Effect of Trichinella spiralis excretory-secretory antigen on expression of TLR2/4 mRNA in mouse macrophage

作　　者：禹洋[1] 徐佳[1] 吕兴锋[1] 唐颖[1] 俞昭旸[1] 宋铭忻[1] 

机构地区：[1]东北农业大学动物医学学院,黑龙江哈尔滨150030

出　　处：《中国兽医科学》2012年第6期562-565,共4页Chinese Veterinary Science

基　　金："十一五"国家科技支撑计划重大项目(2010BAD04B01);国家自然科学基金项目(31172312);家畜疫病病原生物学国家重点实验室开放课题(SKLVEB2009KFKT005)

摘　　要：为探讨旋毛虫ES抗原对RAW264.7细胞TLR2/4mRNA表达的影响,分别取经0、2、5、15、30、45μg/mL ES抗原作用24h的RAW264.7细胞和用15μg/mL ES抗原作用0、3、6、12、18、24h后的RAW264.7细胞,采用半定量PCR方法检测TLR2和TLR4mRNA的表达水平变化。结果显示,随着ES抗原浓度的升高,TLR2/4mRNA的表达量逐渐上升,15μg/mL ES抗原组与空白对照组相比差异显著(P<0.05)。在15μg/mL ES抗原作用24h内,随着作用时间的延长,TLR2/4mRNA的表达量逐渐上升,作用18h后的表达水平升高,且与空白对照组差异显著(P<0.05)。证实,ES抗原可刺激RAW264.7细胞表面受体TLR2/4表达升高,且存在一定的剂量和时间效应。To explore the effect of Trichinella spiralis excretory-secretory antigen on the expression of mRNA of TLR2/4 in RAW264.7 cell,the RAW264.7 cells stimulated respectively by ES antigen（0,2,5, 15,30 and 45 g/mL） for 24 h and 15 g/mL ES antigen stimulated for 0,3,6,12,18 and 24 h were collected, and the expression levels of TLR2 mRNA and TLR4 mRNA were detected by RT-PCR. In result,the expression levels of TLR2/4 mRNA in RAW264.7 cell increased followed the ES antigen concentration,and it showed significantly difference at the concentration of 15 g/mL（P〈0.05）. At the concentration of 15 g/mL, the expression of TLR2/4 mRNA in RAW264.7 cell increased with time, and increased significantly after 18 h（P〈0. 05）. The results showed that ES antigen has impact on the expression of TLR2/4 in RAW264.7 cell,and the expression level is related to dosage and time.

关 键 词：旋毛虫ES抗原 RAW264.7细胞 TLR2 TLR4 

分 类 号：S852.731[农业科学—基础兽医学]