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健脾护齿方对伴放线放线杆菌超声提取物作用下CD4^+CD25^+调节性T细胞免疫抑制功能的影响 被引量:5

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摘要 目的:探讨健脾护齿方对伴放线放线杆菌(actinobacillus actinomycetemcomitans,Aa)超声提取物作用下CD4+CD25+调节性T细胞(regulatory Tcells,Tregs)免疫抑制功能的影响。方法:免疫磁珠法分离正常BALB/c小鼠脾脏CD4+CD25+Tregs并进行体外培养,将300μg/mlAα超声提取物和不同剂量健脾护齿方药液加入培养液中,72h后收集细胞及上清液,Real-Time PCR法测定培养细胞Foxp3 mRNA的表达,ELISA法分别测定细胞上清液中IL-10,TGF-β水平。结果:Aa超声提取物能够显著上调CD4+CD25+Tregs Foxp3 mRNA的表达,增强其免疫抑制作用,但不影响CD4+CD25+Tregs分泌IL-10和TGF-β;健脾护齿方抑制Aa超声提取物上调CD4+CD25+Tregs Foxp3mRNA表达的作用,并且Foxp3 mRNA表达的抑制作用与健脾护齿方剂量之间呈剂量—效应关系。结论:健脾护齿方有抑制Aa超声提取物上调CD4+CD25+Tregs免疫抑制功能的作用,这种抑制效应可能与Foxp3基因表达的下调有关,并且不具有抑制性细胞因子依赖性。
出处 《四川中医》 2010年第5期13-15,共3页 Journal of Sichuan of Traditional Chinese Medicine
基金 国家自然科学基金(编号30801296) 四川省教育厅课题(编号09ZC043)
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参考文献8

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二级参考文献15

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