肺炎球菌多糖疫苗对老龄大鼠肺组织β-防御素-2表达的影响
Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition（2005）
Abstract
目的研究肺炎球菌多糖疫苗(纽莫法)对老龄大鼠肺组织β-防御素-2基因表达的影响.方法将18～22月的老龄大鼠随机分为实验组与对照组,实验组给予纽莫法0.2 ml/kg腹腔注射,对照组给予等量生理盐水腹腔注射.24 h后处死,取肺组织,提取总RNA,以β-actin为内参照,采用半定量逆转录聚合酶链反应(RT-PCR)检测肺组织rBD-2基因表达水平.结果实验组老龄大鼠24 h后rBD-2基因表达水平为0.500±0.126,对照组为0.209±0.138,两组间差异有统计学意义(P<0.05).结论纽莫法可上调老龄鼠肺组织β-防御素-2基因的表达,增强机体局部免疫力.
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Key words
pneumococcal vaccine polyvalent,pulmonary tissue,older rat,gene expression,beta-defensin
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