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EGFR突变与非小细胞肺癌酪氨酸激酶抑制剂靶向治疗 被引量:11

EGFR mutations and targeted therapy with tyrosine kinases inhibitors in non-small cell lung cancer
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摘要 肺癌的高发病率和高病死率,以及化疗对晚期肺癌疗效的十分有限,使之成为世界性医学难题。最近发现,表皮生长因子受体(epidermal growth factor receptor,EGFR)酪氨酸激酶抑制剂(tyrosine kinases inhibitors,TKIs)的分子靶向治疗可以使晚期非小细胞肺癌瘤体缩小;然而,以Gefitinib和Erlotinib为代表的TKIs治疗敏感性与EGFR基因突变显著相关。研究证实,EGFR最常见发生的19区缺失突变和21区点突变导致相应氨基酸序列和EGFR结构的改变,是其增加药物敏感性的主要机制。此外,EGFR基因扩增和CA重复序列的多态性、EGFR通路下游信号(如p-AKT等)激活、HER2和(或)HER3表达的增加、K-RAS基因突变等因素皆影响其对TKIs的治疗敏感性。鉴于此,进一步研究EGFR基因不同突变的功能,寻找能预测TKIs治疗敏感性的因素,并作为TKIs敏感患者的筛选指标,对于提高晚期肺癌患者TKIs靶向治疗疗效具有重要意义。
机构地区 Faculty of Pathology
出处 《中国肿瘤生物治疗杂志》 CAS CSCD 2007年第2期105-109,共5页 Chinese Journal of Cancer Biotherapy
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