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结直肠癌中K-ras基因突变及VEGF表达的临床意义 被引量:6

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摘要 目的探讨结直肠癌K-ras基因突变与癌组织中血管内皮生长因子(vascular endothelial growth factor,VEGF)的表达及其临床意义。方法采用直接测序法对40例结直肠癌组织的石蜡标本进行K-ras基因突变检测,并用免疫组化EnVision法检测40例结直肠癌及40例结直肠腺瘤、20例正常结直肠组织中VEGF的表达。结果 (1)结直肠癌组织中K-ras基因突变率为32.5%(13/40),其与患者年龄、性别、肿瘤大小、部位、TNM分期等因素均无关(P>0.05)。(2)结直肠癌中VEGF的阳性率为52.5%(21/40)高于腺瘤组(35%,14/40),差异有统计学意义(P<0.05);20例正常结直肠组织中未检测出VEGF阳性。(3)结直肠癌中K-ras基因突变与VEGF表达具有相关性(P<0.05)。结论 K-ras基因突变及VEGF高表达均与结直肠癌的发生、发展密切相关,K-ras基因突变可能通过上调VEGF的表达在肿瘤血管形成方面起重要作用。
出处 《临床与实验病理学杂志》 CAS CSCD 北大核心 2013年第3期330-332,共3页 Chinese Journal of Clinical and Experimental Pathology
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参考文献12

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二级参考文献46

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