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非小细胞肺癌中TGF-β_1与肿瘤相关纤维母细胞α-SMA及CD34表达的相关性和意义 被引量:10

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摘要 目的探讨非小细胞肺癌(NSCLC)中肿瘤相关纤维母细胞蛋白的表达与癌侵袭的关系及TGF-β1是否与其蛋白表达改变有关。方法采用免疫组织化学ElivisionTM plus法检测60例NSCLC及相应癌旁非肿瘤组织中纤维母细胞α-SMA、CD34和TGF-β1的表达,并结合临床病理进行分析。结果 TGF-β1蛋白在NSCLC组表达明显高于癌旁非肿瘤组(P<0.05),与TNM分期、肿瘤分化、淋巴结转移、肿块大小有关(P<0.05);α-SMA在NSCLC间质中的表达高于癌旁非肿瘤组(P<0.05);与TNM分期、淋巴结转移、肿瘤分化、肿块大小有关(P<0.05);CD34在NSCLC间质中的表达明显低于癌旁非肿瘤组(P<0.05);NSCLC组织中,TGF-β1与α-SMA表达呈正相关(r=0.435,P=0.001),与CD34表达呈负相关(r=-0.386,P=0.003),α-SMA与CD34表达呈负相关(r=-0.329,P=0.011)。结论与癌旁非肿瘤组织中纤维母细胞相比,NSCLC间质中纤维母细胞CD34表达缺失,而转变表现为α-SMA(+)的肌纤维母细胞的特征,联合检测两者将可能作为肿瘤相关纤维母细胞较特异的标记;肿瘤相关纤维母细胞与NSCLC的侵袭转移密切相关;NSCLC中肿瘤细胞可能通过分泌TGF-β1作用于肿瘤间质,促进CD34(+)纤维母细胞转变为α-SMA(+)肌纤维母细胞。
出处 《广东医学》 CAS CSCD 北大核心 2011年第14期1866-1869,共4页 Guangdong Medical Journal
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参考文献15

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