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肺腺癌转移相关转录本1在乳腺癌患者血浆中的表达及临床意义

Journal of Jiangsu University(Medicine Edition)(2018)

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Abstract
目的:探讨长链非编码RNA肺腺癌转移相关转录本1(metastasis-associated lung adenocarcinoma transcript 1,MALAT-1)在乳腺癌患者血浆中的表达及其临床意义.方法:采用实时荧光定量PCR(qRT-PCR)方法检测60例乳腺癌患者癌组织及癌旁组织中MALAT-1的表达,60例乳腺癌患者及60例乳腺纤维瘤患者血浆中MALAT-1的表达;分析乳腺癌患者血浆MALAT-1表达量与临床病理特征的关系;采用电化学发光免疫测定法检测血浆中CA125和CA153含量,建立多元逻辑回归模型分析血浆中MALAT-1、CA125和CA153对乳腺癌的诊断效能及3项指标联合诊断价值.结果:乳腺癌患者癌组织MALAT-1表达量明显高于癌旁组织;与乳腺纤维瘤患者相比,乳腺癌患者血浆中MALAT-1表达明显增高,且血浆中MALAT-1表达与基因分型和淋巴结转移明显相关(P<0.05).血浆MALAT-1单独诊断乳腺癌的ROC曲线下面积(AUC)为0.961(P<0.001),敏感度和特异性分别为96.7%和93.3%,其诊断价值高于CA125(AUC=0.618,P=0.022)和CA153(AUC=0.623,P=0.016);3项指标联合诊断敏感度(98.3%)高于单独检测.结论:乳腺癌患者血浆中MALAT-1呈高表达,其可能为乳腺癌诊断的潜在生物学标志物.
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Key words
long non-coding RNA,MALAT-1,breast cancer,plasma,biomarker
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