不同临床期别宫颈鳞癌患者血清差异蛋白质的表达

目的寻找不同临床期别宫颈鳞癌患者之间的血清差异蛋白质。方法采用表面增强激光解吸离子化飞行时间质谱仪（SELDI-TOF-MS）和弱阳离子结合芯片（CM10）,检测宫颈鳞癌患者可手术治疗组（Ⅰa期、Ⅰb期、Ⅱa期）与不能手术治疗组（Ⅱb期、Ⅲa期、Ⅲb期、Ⅳ期）的血清蛋白质、以及血清鳞状细胞癌抗原（SCCA）≥4.5ng/ml组与SCCA〈1.5ng/ml组之间有分类意义的差异蛋白质。结果相对分子质量在1002～18369范围内,共有43种蛋白质质谱峰值有显著性差异（P〈0.05）,其中质荷比（M/Z）为11523.83、11679.13、5841.076、7971.04、16109.71、15932.17的蛋白质,在宫颈癌可手术治疗组的含量显著低于不能手术治疗组（P〈0.01）。SCCA≥4.5ng/ml组与SCCA〈1.5ng/ml组之间获得相同的差异蛋白质。以单个差异蛋白质11679.13（M/Z）作为分类变量建立宫颈癌手术组与不能手术组的诊断树模型,分类正确率为93.18%（41/44）。结论宫颈癌早中期可手术治疗组与中晚期不能手术治疗组血清中存在差异蛋白质,SCCA组≥4.5ng/ml与SCCA〈1.5ng/ml组之间存在相同的差异蛋白质;以单个差异蛋白质作为分类变量建立的诊断树模型,给临床分期提供重要的参考。

Differentially expressed proteins in serum of operation and non-operation cervical squamous cell carcinoma patients

Objective To find the differentially expressed proteins in early metaphase(operation group) and advanced stage(non-operation group) in the serum of patients with cervical squamous cell carcinoma.Methods Surface-enhanced laser desorption/ionization time of flight mass spectrometry(SELDI-TOF-MS) with weak cationic chips(CM10) was used to detect the serum samples of 44 patients with cervical squamous cell carcinoma.The differentially expressed proteins in the serum of the patients were identified.Differentiall...