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口服HSP60对动脉粥样硬化大鼠血清TGF-β和调节性T细胞含量的影响 被引量:3

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摘要 目的研究口服热休克蛋白60(HSP60)对动脉粥样硬化(AS)大鼠血清TGF-β和调节性T细胞含量的影响。方法 40只4周龄健康雄性SD大鼠,体重100g±10g。随机分为4组:健康对照组(C组),动脉粥样硬化未干预组(AS组),AS造模前口服HSP60组(H1组),造模后口服HSP60组(H2组),以上4组每组10只。本实验采用高脂饲料和维生素D3粉剂造AS模型,于出生后180d采血后处死,并取大鼠主动脉根部作为标本。MIAS-2000图像分析系统观察病理改变,并计算血管内膜(IT)与血管内径(ID)之比(IT/ID);ELISA法检测各组血清中TGF-β含量;流式细胞技术检测血清CD4+CD25+Foxp3+调节性T细胞含量。结果高脂饮食可形成AS斑块,AS组主动脉内膜增厚,平滑肌细胞增生,排列紊乱,部分血管内膜突起,淋巴细胞、炎性细胞、泡沫细胞浸润,肌纤维断裂,斑块形成斑块处可形成夹层动脉瘤,甚至斑块有破裂出血。各组主动脉血管IT/ID值分别为:C组(6.1±1.3)%;AS组(38.3±6.5)%;H1组(15.8±7.4)%;H2组(26.9±3.3)%。各组血清中细胞因子TGF-β含量分别为:C组(88.7±20.1)pg/mL;AS组(53.6±15.4)pg/mL;H1组(291.9±71.7)pg/mL;H2组(161.3±49.0)pg/mL。各组外周血CD4+、CD8+、CD4+CD 2 5+Foxp 3+调节性T细胞占CD 4+T细胞比例分别为C组(2.5 5±0.3 6)%;AS组(1.6 6±0.3 6)%;H 1组(5.58±0.22)%;H2组(3.28±0.61)%。结论口服HSP60能增加AS大鼠血清TGF-β和调节性T细胞含量,增加免疫耐受程度,且造模前口服较造模后口服增加幅度为高。
出处 《中西医结合心脑血管病杂志》 2013年第11期1355-1356,共2页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
基金 山西省高校科技研究开发项目(No.2011004 2006115) 山西省大学生创新基金项目(No.20103053) 2013年山西医科大学博士启动基金项目资助
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共引文献5

同被引文献34

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