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MDA-7在非小细胞肺癌中的表达及其临床意义

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摘要 目的探讨MDA-7的表达在非小细胞肺癌的发生、发展及其早期诊断中的临床意义。方法应用免疫组化方法对手术切除的90例非小细胞肺癌组织、28例肺部良性疾病肺组织中MDA-7的表达水平进行分析;应用ELISA法对上述两组患者的配对血清及同期收住呼吸内科的45例非小细胞肺癌、20例肺部良性疾病患者及40例健康人血清中MDA-7的表达水平进行比较分析。结果MDA-7在非小细胞肺癌、肺部良性疾病组织中阳性表达率分别为55.6%、24.1%,两者比较具有显著的统计学意义(P<0.05)。其中,肺腺癌组织的MDA-7表达率最高,为73.1%,鳞癌组织中MDA-7表达率最低,为21.4%,两者比较具有显著的统计学意义(P<0.001)。在肺腺癌组织中,MDA-7阳性表达强度与腺癌细胞分化程度、TNM分期显著相关(P<0.05),细胞分化程度越高、TNM分期越早,MDA-7蛋白阳性表达强度越强;反之则相反。MDA-7在非小细胞肺癌、肺部良性疾病患者及健康人血清中的表达水平分别为(100.07±21.35)pg/ml、(62.79±8.88)pg/ml、(68.36±9.53)pg/ml。非小细胞肺癌组与肺部良性疾病组、健康人组比较均具有显著的统计学意义(P<0.001),而肺部良性疾病组与健康人组比较无统计学意义(P>0.05)。结论MDA-7的表达可能与肺腺癌发生、发展有关,肺组织及血清中MDA-7表达水平的检测可能有助于非小细胞肺癌的诊断、鉴别诊断及TNM分期。血清中MDA-7表达水平的检测具有相对无创、标本易得、可动态观察等优点,值得进一步研究。
出处 《社区医学杂志》 2007年第10S期7-9,共3页 Journal Of Community Medicine
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