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^(60)Coγ线辐照全血对T淋巴细胞分泌细胞因子的影响 被引量:6

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摘要 目的:探讨60Coγ射线辐照全血对T淋巴细胞分泌细胞因子白细胞介素2(IL2)、干扰素γ(IFNγ及肿瘤坏死因子(TNF)的影响。方法:分别用5种剂量的60Coγ射线对新鲜全血进行辐照处理,然后用免疫标法区分T淋巴细胞CD3+、CD4+和CD8+3个亚群,用流式细胞术检测辐照前后3种表型T细胞内分泌IL2IFNγ及TNF的淋巴细胞数量的百分率的变化。结果:综合5个剂量组辐照新鲜全血后3种表型的T细胞分表达的IL2、INFγ、TNF均有明显降低(P<0.01);经15Gy辐照后,3种表型的T细胞分泌表达的上述细胞子的百分率降低均不明显(P>0.05);但从20~35Gy中,除了20GyCD3+、CD4+及25GyCD3+T细胞内分表达的TNF降低不明显(P>0.05)外,其余剂量辐照后对3种表型的T细胞内分泌细胞因子均有所降低(P0.05或0.01)。结论:经60Coγ线辐照新鲜全血能抑制T细胞内分泌表达细胞因子,且抑制效应与辐照剂量相关辐照剂量越大,抑制效应越明显。
出处 《临床血液学杂志》 CAS 2005年第5期296-298,共3页 Journal of Clinical Hematology
作者简介 徐文皓,E-mail:xwh6911@yahoo.com.cn
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参考文献5

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