NPTX2甲基化在胰腺癌中的定量检测及诊断应用
Journal Title: Di-er Junyi Daxue Xuebao - Year 2008, Vol 29, Issue 11
Abstract
目的:检测NPTX2甲基化水平在胰腺癌中变化并评价其用于胰腺癌诊断的价值。方法:在10例胰腺癌组织和10例癌旁正常胰腺组织中,分别应用定量RT-PCR和SYBR Green荧光掺入甲基化特异性定量检测法检测NPTX2 mRNA表达量及CpG岛的甲基化量。应用上述建立甲基化特异性定量检测方法分析NPTX2甲基化在胰腺癌及健康志愿者全血DNA中的差异。结果:NPTX2基因在胰腺癌组织中mRNA表达量低于癌旁正常胰腺组织 (RQ,0.276±0.263 vs 3.526±3.037,P=0.001),而其甲基化指数(MI)较癌旁正常胰腺组织高[(9.02±7.52)% vs (1.28±0.98)%,P=0.003]。RQ与MI两者之间存在负相关关系(R=-0.552,P=0.012)。NPTX2基因MI在胰腺癌患者全血DNA中显著高于健康人[(1.80±1.76)% vs (0.84±0.45)%,P<0.05]。结论:在胰腺癌组织中NPTX2发生高甲基化变化,检测其在临床样品中的MI可辅助用于胰腺癌诊断。
Authors and Affiliations
Jia CAO
Construction and identification of recombinant adenovirus containing wild-type human PKGⅠα gene
Objective:To clone human PKGⅠα gene and construct a recombinant adenovirus vector containing wild-type PKGⅠα.Methods: RT-PCR was used to amplify the full-length PKGⅠα gene from human pulmonary arterial smooth muscle.Afte...
驻极体透皮贴剂体外实验的优化设计探讨
目的:目前驻极体透皮贴剂的体外实验多采用比较低效的单因素实验设计方法。为了更系统和有效地分析各因素之间的影响,本文根据驻极体透皮贴剂的研究目标,提出驻极体透皮贴剂的体外实验的优化方案。方法:由于影响驻极体电荷储存稳定性的因素...
Expression and clinical significance of chemokine receptor in peripheral blood mononuclear cells in patients with primary biliary cirrhosis
Objective:To investigate the relationship of chemokine receptor with the development and progression of primary biliary cirrhosis (PBC). Methods: Real-time PCR and flow cytometry were used to examine the mRNA and protein...
Retroperitoneal laparoscopic partial nephrectomy for early malignant renal tumors: a report of 21 cases <br /> <br />
Objective:To explore the procedures and clinical outcomes of retroperitoneal partial nephrectomy for early malignant renal tumors. Methods: A total of 21 patients (19 men and 2 women, with a mean age of 49 years) with e...
基因组消减杂交技术筛选肾透明细胞癌转移相关甲基化基因
目的:筛选能够早期诊断和预测肾透明细胞癌转移相关基因的甲基化生物标志。方法:应用本室从临床新鲜组织标本体外培养建立的低转移性和高转移性肾透明细胞癌细胞株,病理学鉴定后提取基因组DNA,应用3轮NotⅠ基因组消减杂交的方法富集差...