宫颈癌新辅助动脉化疗敏感性相关蛋白质组的研究

目的利用蛋白质组学的方法研究宫颈鳞癌新辅助动脉化疗前后的差异表达蛋白,以期得到与宫颈癌化疗敏感性相关的蛋白质。方法选取巨块型宫颈鳞癌经新辅助动脉化疗有效的患者18例。其中8例通过双向凝胶电泳技术分离化疗前后的宫颈鳞癌组织的差异蛋白点,然后用基质辅助激光解吸电离飞行时间串联质谱鉴定差异表达的蛋白质。在另外10例患者中用Western blot方法验证兴趣蛋白质Peroxiredoxin 1和Galectin-1在化疗前后的表达差异。结果建立了宫颈鳞癌有效组化疗前后蛋白差异表达的双向凝胶电泳图谱,发现化疗前后存在3倍以上量差表达的蛋白点共有116个(P<0.05),其中31个差异蛋白点通过质谱分析和数据库的检索得到了鉴定,其中化疗后表达上调的蛋白点有15个,表达下调的蛋白点有16个。West-ern blot方法验证了两个兴趣蛋白在化疗前后的表达差异。结论利用蛋白质组学方法可寻找到宫颈鳞癌新辅助动脉化疗敏感性相关蛋白,从而实现在化疗前预测肿瘤对化疗药物的敏感性,使患者得到更加有效的个体化治疗。

Identification of Neoadjuvant Intra-arterial Chemotherapy Sensitivity Related Proteins in Squamous Cervical Cancer by Proteomics

Objective To explore the differentially expressed proteins between pre-and post-neoadjuvant intra-arterial chemotherapy and identify chemotherapy sensitivity related proteins in squamous cervical cancer.Methods Eighteen cases of human bulky squamous cervical cancer who took pre-and post-neoadjuvant intra-arterial chemotherapy and effectively responsd to chemotherapy were selected,of whom 8 cases were separated by two-dimensional gel electrophoresis and the differentially expressed proteins were identified b...