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Prognostic Significance of MCL1 in Advanced Non-small Cell Lung Cancer Patients
Author(s): WANG Jing1, 2, ZHANG Yu-hai3, SHI Jie-ran1, REN Xin-ling1, XU Shu-di1, LI Wei-jie1, CHEN Zhang-qin2, WANG Zhe4, ZHAO Yi-ling4, LI Sheng-qing1
Pages: 2277-
2282
Year: 2013
Issue:
12
Journal: Progress in Modern Biomedicine
Keyword: Mcl1; Apoptosis; Non-small cell lung cancer; Prognostic biomarkers; Overall survival;
Abstract: 目的:检测细胞凋亡通路蛋白Mcl1和Fbw7对晚期非小细胞肺癌患者预后的预测作用。方法:收集2008年3月至2011年6月在第四军医大学第一附属医院西京医院确诊晚期非小细胞肺癌且最初两个化疗周期采用"多西他赛+顺铂"方案的患者,通过电话和信件进行随访。用免疫组化方法检测患者肿瘤蜡块组织中蛋白Mcl1和Fbw7表达,用H评分系统将蛋白表达分为高表达组和低表达组。统计采用Kaplan-Meier法进行单因素生存分析并进行Log-Rank检验,通过比例风险模型(Cox模型)逐步后退法进行多因素分析,以P<0.05为有显著差异。结果:共收集病例144例,其中腺癌69例,鳞癌64例,其它11例。Ⅲ期患者45例(31.25%)Ⅳ期患者99例(68.75%).64例(44.44%)患者Mcl1高表达,80例(55.56%)患者Mcl1低表达。单因素结果提示TNM分期是提示预后的显著因素(P=0.033),Ⅲ期患者1年生存率为74.20%(中位生存时间为666天),Ⅳ期患者1年生存率为55.60%(中位生存时间为415天)。Mcl1的表达与晚期非小细胞肺癌预后相关联(P=0.042),其中Mcl1高表达组1年生存率为69.9%(中位生存时间为612天),Mcl1低表达组1年生存率为55.30%(中位生存时间为406天)。多因素分析结果显示Mcl1(OR=1.809,95%CI(1.123-2.912),P=0.015)和TNM分期(OR=0.573,95%CI(0.336-0.978),P=0.041)有独立的预后意义。结论:Mcl1蛋白表达和TNM分期是晚期非小细胞肺癌的独立预后因素,Mcl1高表达组较低表达组有更好的预后,Ⅲ期患者比Ⅳ期患者有更好的预后。
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