姜培娟;林其德;赵爱民;鲍世民;肖世金;

• 1:上海交通大学医学院附属仁济医院妇产科
• 2:中国科学院上海实验动物中心

摘要(Abstract)：

目的:观察IL-4与IL-10对趋化因子受体CCR3、CCR5和CXCR3的选择性诱导对自然流产模型小鼠胚胎丢失率的影响,探讨趋化因子受体CCR3、CCR5、CXCR3在诱导妊娠免疫耐受中的作用。方法:建立自然流产小鼠模型与正常妊娠小鼠模型,观察细胞因子IL-4与IL-10对CCR3、CCR5、CXCR3的选择性诱导作用,用双标记流式细胞分析技术,检测正常妊娠模型组孕鼠(CBA/J×BALB/c)、自然流产模型无干预组孕鼠(CBA/J×DBA/2)、自然流产模型IL-4免疫组孕鼠、自然流产模型IL-4+IL-10联合免疫组孕鼠和自然流产模型-生理盐水(NS)免疫组孕鼠中外周血CD4+T细胞CCR3、CCR5、CXCR3等3类趋化因子受体的表达率,并观察各组孕鼠胚胎丢失率。结果:(1)流产模型无干预组胚胎丢失率显著高于正常妊娠模型组,差异有统计学意义(P<0.01),IL-4免疫组、IL-4+IL-10联合免疫组胚胎丢失率皆明显低于NS组与流产模型无干预组(P<0.01,P<0.01);(2)自然流产模无干预组外周血CD4+T细胞CCR3表达水平明显低于正常妊娠模型组(P<0.01),而CCR5、CXCR3表达率明显高于正常妊娠模型组(P<0.01);转输IL-4、IL-4+IL-10后CCR3表达率明显上调、CXCR3表达率明显下降,均与流产模型无干预组差异有显著性(P<0.01)。此外,IL-4+IL-10联合免疫组外周血CD4+T细胞上CCR5表达率也明显低于流产模型无干预组(P<0.05),但IL-4免疫组与流产模型无干预组无明显差异(P>0.05)。结论:CD4+T细胞上CCR3、CCR5、CXCR3表达异常可能在自然流产发病中起重要作用,细胞因子IL-4与IL-10联合作用可能通过诱导CCR3高表达,抑制CCR5与CXCR3表达来诱导妊娠免疫耐受,降低胚胎丢失率。

关键词(KeyWords)： 受体,趋化因子;CD4阳性T淋巴细胞;流产,自然;细胞因子类;疾病模型,动物

Abstract:

Keywords:

基金项目(Foundation): 上海市自然科学研究基金资助项目(No:07ZR14072)

作者(Authors): 姜培娟;林其德;赵爱民;鲍世民;肖世金;

DOI: 10.13283/j.cnki.xdfckjz.2009.05.010

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