肺癌患者外周血 AKAP12基因甲基化水平的检测及意义

摘要

目的：研究甲基化特异‐高分辨融解曲线法（MS‐HRM）检测肺癌患者外周血中A激酶锚定蛋白12（AKAP12）基因甲基化水平及其临床意义。方法采用MS‐HRM法检测60例肺癌患者外周血中AKAP12基因的甲基化水平，分析其与肺癌患者病理参数的关系。结果经MS‐HRM检测，从60例肺癌患者标本中检出34例（56．7％）AKAP12基因甲基化，其中，18例（52．9％）甲基化程度为1％～20％，14例（41．2％）为20％～60％，2例（5．88％）为60％～100％。外周血中AKAP12基因甲基化水平在不同患者年龄和性别中比较，差异无统计学意义（P＞0．05）；而与肺癌的病理分期和分化程度比较，差异有统计学意义（P＜0．05）。结论AKAP12启动子甲基化改变与肿瘤进展及肿瘤恶性程度相关。%Objective To detect the levels of AKAP12 methylation by methylation‐specific high‐resolution melting curve(MS‐HRM ) in peripheral blood in patients with colorectal cancer and investigate its clinical significance .Methods We used MS‐HRM technology to detect the levels of AKAP12 methylation in peripheral blood in 60 lung cancer patients ,and analyzed the relationship between the levels of AKAP12 methylation and pathological parameters of lung cancer patients .Results 34(56 .7% ) of the 60 lung cancer patients were found to be methylated at the AKAP12 promoter region by MS‐HRM ,the methylation levels of 18 cases ranged between 1% -20% ,14 cases ranged between 20% -60% ,2 cases ranged between 60% -100% .There was no significant differences between the levels of AKAP12 methylation and lung cancer patients′age and gender(P>0 .05) .However ,it was signifi‐cantly higher in the patients with high pathological stage and differentiation degree (P<0 .05) .Conclusion AKAP12 promoter re‐gion methylation was related to tumor progression and malignant degree .