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- 2018
STAT6在涎腺腺样囊性癌组织中的表达及对细胞增殖和侵袭的影响
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Abstract:
摘要 目的:探讨STAT6在涎腺腺样囊性癌(SACC)组织中的表达,以及下调STAT6基因表达对细胞增殖和侵袭的影响。方法:选取SACC患者53例,并留取涎腺良性肿瘤正常涎腺腺组织40例作为对照组,免疫组化法检测SACC和对照组组织中STAT6蛋白表达,培养ACC-2细胞,分为STAT6干扰序列组、阴性对照组和空白组,STAT6干扰序列组采用小分子干扰RNA(siRNA)技术下调细胞中STAT6基因表达,实时荧光定量PCR技术检测STAT6基因表达,MTT比色法检测细胞增殖能力,Transwell法检测细胞迁移和侵袭能力。结果:SACC组织中STAT6蛋白阳性表达率为71.70%,高于对照组的28.30%(χ2=19.962,P=0.000);SACC组织中STAT6蛋白阳性表达与TNM分期、淋巴结转移和远处转移有关(P<0.05);STAT6干扰序列组细胞中STAT6 mRNA相对表达量低于阴性对照组和空白组(P<0.05);MTT实验结果显示,STAT6干扰序列组24~96 h细胞A值低于阴性对照组和空白组(P<0.05);STAT6干扰序列组迁移细胞数和侵袭细胞数低于阴性对照组和空白组(P<0.05)。结论:SACC组织中STAT6蛋白呈高表达,下调STAT6基因表达可抑制细胞增殖、迁移及侵袭
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