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外源性IL-23对病毒性心肌炎小鼠Th17细胞增殖的影响

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摘要 目的观察小鼠重组IL~23(rIL-23)对病毒性心肌炎(VMC)小鼠Th17细胞增殖的影响。方法BALB/c小鼠腹腔注射柯萨奇病毒B3(CVB3)建立VMC小鼠模型,1周后磁珠分离脾CD4^+T淋巴细胞后进行体外培养,分别加入植物血凝素(PHA)与重组小鼠IL-23(rIL-23)或PHA单独刺激进行体外培养5天。流式细胞术测定培养后Th17细胞占CD4细胞的百分比、RT—PCR测定培养细胞IL-17mRNA的表达、ELISA法测定培养物上清液中IL-17的水平。结果与单纯PHA刺激比较,rIL-23刺激后Th17细胞明显增加(1.82%±0.17%比4.70%+1.29%),且培养细胞IL-17mRNA及上清液中IL—17浓度也增加,两组比较有统计学差异(P均〈0.05)。结论外源性rIL-23可以增加并维持Th17细胞的增殖。
出处 《柳州医学》 2014年第2期74-78,共5页
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