摘要
目的 分析结直肠癌患者粪便中波形蛋白基因甲基化状态,探讨其作为结直肠癌早期诊断分子标志物的可行性和临床意义.方法 从郑州大学第一附属医院收治的60例结直肠癌患者、门诊行结肠镜检查的17例结直肠腺瘤患者及30名正常对照者的粪便中分别提取DNA,采用甲基化特异性PCR（MSP）方法分析其波形蛋白基因甲基化状态.结果 60例结直肠癌患者粪便中波形蛋白基因甲基化阳性率为51.67％（31/60）,17例结直肠腺瘤患者粪便中波形蛋白基因甲基化阳性率为4/17,30名正常对照中无一例检测到波形蛋白基因甲基化.结论 粪便中波形蛋白基因甲基化是结直肠癌进展过程中的早期事件,粪便中波形蛋白基因甲基化分析有望成为结直肠癌早期诊断的标志物之一.
Objective To analyze the methylation status of Vimentin gene in feces of colorectat cancer （CRC） patients,to explore the possibility and clinical significance of which as molecular marker for early diagnosis of colorectal cancer.Methods DNA was isolated in feces of 60 colorectal cancer patients hospitalized and treated in the First Affiliated Hospital of Zhengzhou University,17 colorectal adenoma patients underwent colon endoscopy in outpatient department and 30 normal volunteers.The methylation status of Vimentin gene was analyzed with methylation-specific PCR （MSP）.Results In the feces of 60 colorectal cancer patients,the positive percentage of Vimentin gene methylation was 51.67% （31/60）.In the feces of 17 colorectal adenoma patients,the positive percentage of Vimentin gene methylation was 4/17.Vimentin gene methylation was detected in none of 30 normal controls.Conclusion The methylation of Vimentin gene in fecal is an early event in colorectal cancer progression.Analysis of Vimentin gene methylation in feces is expected to be one of the markers for early diagnosis of colorectal cancer.
出处
《中华消化杂志》
CAS
CSCD
北大核心
2011年第12期803-807,共5页
Chinese Journal of Digestion
基金
河南省医学科技攻关项目（200803026）
关键词
结直肠肿瘤
波形蛋白
甲基化
聚合酶链反应
粪便
Colorectal neoplasms
Vimentin
Methylation
Polymerase chain reaction
Feces
