Abstract

背景与目的在肿瘤发生发展过程中,肿瘤会“教育”血小板引起其mRNAs表达谱改变。由于血小板没有细胞核,其mRNAs的水平变化极可能是通过转录后pre-mRNA的剪接成熟及选择性剪接来实现的。凋亡染色体凝聚诱导因子1(apoptotic chromatin condensation inducer 1, ACIN1)是剪接依赖的多蛋白外显子连接复合物的组成部分之一,参与剪接相关的mRNAs代谢。本研究旨在分析ACIN1 mRNA在血小板中的表达水平,并探讨其作为肺癌生物标志物的潜力。方法收集山东省肿瘤医院156例肺癌患者和58例健康对照作为研究对象。低速离心法获得血小板沉淀,提取总RNA。用RT-PCR技术检测ACIN1 mRNA在血小板中表达水平,并分析其在肺癌患者和健康对照人群血小板中的表达差异以及ACIN1 mRNA表达与相关临床因素的相关性。结果ACIN1 mRNA在肺癌患者血小板中的表达水平显著高于健康对照组(P=0.015)。受试者工作特征(receiver operating characteristic, ROC)曲线显示ACIN1 mRNA表达水平检测肺癌的曲线下面积分别是0.608。ACIN1 mRNA在肺癌血小板中的表达与肺癌患者的年龄、性别、病理类型以及是否转移等无明显关系(P > 0.05)。结论ACIN1 mRNA在肺癌患者血小板中显著高表达,其表达水平检测对肺癌的诊断有潜在的临床价值。

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