Differential Proteomics Analysis of Tumor Tissues and Their Adjacent Normal Tissues from Patients with Colorectal Cancer by Gel Electrophoresis-Capillary Liquid Chromatography-Mass Spectrometry-based Approach
通过凝胶电泳将大肠癌患者的手术标本组织(肿瘤与癌旁)中的总蛋白按照分子量分成不同的组分,经胶内水解后,利用毛细管液相色谱-质谱联用技术对各个组分的多肽混合物进行蛋白质组学分析,共鉴定出29种差异表达的蛋白质,其中肿瘤组织中表达上调的蛋白质19种,如Fibrinogen beta chain,Vimentin,Fibrinogen gamma chain,Histone H2A type 1-B/E,Isoform 1 of Periostin,Fibrinogen alpha chain,Histone H3.1,Alphaenolase,Protein disulfide-isomerase A3等;在肿瘤组织中表达下调的有10种蛋白质,如Sarcomeric tropomyosin kappa,Transgelin,Heat shock protein beta-1,Talin-1,Isoform 2 of Vinculin,Isoform 1 of Filamin-C等。通过蛋白质印迹实验对其中的踝蛋白1(Talin-1)和烯醇化酶(Alpha-enolase)的蛋白质组学鉴定结果进行了验证。生物信息学...
【英文摘要】
The whole protein extracts from tissue specimens( tumor and noncancerous) from patients with colorectal cancer were divided into several fractions with different molecular weight by gel electrophoresis,which were then subject to in-gel digestion and proteomics analysis by capillary liquid chromatography-mass spectrometry. A total of 29 differentially expressed proteins were identified,among which 19 were up-regulated proteins in tumor tissues,such as Fibrinogen beta chain,Vimentin,Fibrinogen gamma chain,His...
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