实时荧光定量聚合酶链反应检测食管癌患者血清miR-100表达的意义

目的检测食管癌患者与健康人血清中miR-100的表达量差异,并探讨其作为食管癌分子诊断指标的可能性。方法采用实时荧光定量PCR方法,检测40例食管癌患者(研究组)和50例体检健康者(对照组)血清中miR-100的表达量,并进行统计学分析。结果研究组及对照组血清中miR-100的表达量分别为6.399±3.541、2.625±1.515,研究组明显高于对照组,差异有统计学意义(t=9.07,P0.05)。用于食管癌患者诊断的miR-100的ROC曲线下面积为0.832(95%置信区间为0.731~0.934),当Cut off值为5.285时,miR-100诊断食管癌的灵敏度和特异度分别为65%和95%。结论食管癌患者血清中miR-100表达较健康人高,有望成为该疾病辅助诊断的新分子标志物。

Value of real-time fluorescent quantitative polymerase chain reaction in detecting expression of miR-100 in patients with esophageal cancer

Objective To compare the expression of serum miR-100 in patients with esophageal cancer and healthy person ,and explore the value of miR-100 in diagnosis for esophageal cancer .Methods Real-time fluorescent quantitative polymerase chain reac-tion was used to detecting miR-100 in 40 esophageal cancer patients(study group) and 50 healthy person(control group) .Results The expression of miR-100 in the study group and control group were 6 .399 ± 3 .541 ,2 .625 ± 1 .515 respective ,the expression in the study group was significant higher than that of the control group(t= 9 .07 ,P< 0 .05) .The under area of receiver operating char-acteristic curve of miR-100 in diagnosis for esophageal cancer was 0 .832(95% confidence interval was 0 .731 - 0 .934) ,when the Cut off value was 5 .285 ,the sensitivity and specificity of miR-100 in diagnosis for esophageal cancer were 65% and 95% . Conclusion Serum miR-100 in esophageal cancer patients is higher than that in healthy person ,which might be a new molecular markers in diagnosis for esophageal caner .