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Pancreatic ductal adenocarcinoma screening:New perspectives 被引量:8
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作者 Raffaele Pezzilli Dario Fabbri Andrea Imbrogno 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第36期4973-4977,共5页
Pancreatic ductal adenocarcinoma accounts for more than 90% of all pancreatic cancers and its incidence has increased significantly worldwide.Patients with pancreatic ductal adenocarcinoma have a poor outcome and more... Pancreatic ductal adenocarcinoma accounts for more than 90% of all pancreatic cancers and its incidence has increased significantly worldwide.Patients with pancreatic ductal adenocarcinoma have a poor outcome and more than 95% of the people affected die from the disease within 12 mo after diagnosis.Surgery is the first-line treatment in the case of resectable neoplasm,but only 20% of patients are candidates for this approach.One of the reasons there are few candidates for surgery is that,during the early phases of the disease,the symptoms are poor or non-specific.Early diagnosis is of crucial importance to improve patient outcome;therefore,we are looking for a good screening test.The screening test must identify the disease in an early stage in order to be effective;having said this,a need exists to introduce the concept of "early" ductal adenocarcinoma.It has been reported that at least five additional years after the occurrence of the initiating mutation are required for the acquisition of metastatic ability of pancreatic adenocarcinoma and patients die an average of two years thereafter.We have reviewed the most recent literature in order to evaluate the present and future perspectives of screening programs of this deadly disease. 展开更多
关键词 Pancreatic neoplasms Study population PREVENTION THERAPEUTICS
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Wnt拮抗物分泌型卷曲相关蛋白2与大肠癌的研究进展 被引量:2
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作者 汤东 王道荣 《国际外科学杂志》 2006年第4期291-294,共4页
Wnt蛋白对正常细胞增殖起调整促进作用,改变发生在大多数大肠癌的Wnt信号途径导致β-链蛋白的积聚,分泌型卷曲相关蛋白(SFRP)结合Wnt并通过这条途径抑制信号。当SFRP基因甲基化时,Wnt信号途径激活,蛋白质的机能随之出现异常,使癌细胞不... Wnt蛋白对正常细胞增殖起调整促进作用,改变发生在大多数大肠癌的Wnt信号途径导致β-链蛋白的积聚,分泌型卷曲相关蛋白(SFRP)结合Wnt并通过这条途径抑制信号。当SFRP基因甲基化时,Wnt信号途径激活,蛋白质的机能随之出现异常,使癌细胞不断增殖,导致大肠癌发生。90%的大肠癌患者与SFRP基因甲基化有关,而甲基化SFRP2是最敏感的大肠癌诊断标志物之一。在人类粪便中检测SFRP2基因的甲基化为检测和研究大肠癌提供一种新的策略。 展开更多
关键词 WNT 分泌型卷曲相关蛋白2基因甲基化 大肠癌 早期筛选诊断
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