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流式细胞术鉴定人外周血滤泡辅助性T细胞 被引量:5

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摘要 目的:用免疫荧光染色和流式细胞术(FCM)鉴定正常人外周血单个核细胞(PBMC)中滤泡辅助性T(Tfh)细胞,以便对其功能进行进一步研究。方法:密度梯度离心法分离人PBMC,采用不同荧光素标记的抗CXCR5、CD4及CD19抗体进行染色FCM分析,鉴定出表型为CD4+CXCR5+的T细胞亚群。结果:外周血可以检测到CD4+CXCR5+T细胞亚群,占CD4+T淋巴细胞百分比为(11.09±0.38)%,MFI值为25.78±0.72,低于B细胞膜表面CXCR表达水平(MFI值为99.6±8.1)。结论:健康人外周血存在一定比例的Tfh细胞,应用FCM可以成功鉴定Tfh细胞,为进一步研究其功能提供了良好的技术平台。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2009年第11期1063-1064,共2页 Chinese Journal of Cellular and Molecular Immunology
基金 国家自然科学基金资助项目(30801003)
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参考文献5

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