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BRCA1和IGF1R在乳腺良恶性肿瘤中的表达及其意义 被引量:3

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摘要 目的探讨BRCA1和IGF1R在乳腺癌诊断、治疗和预后中的意义。方法应用免疫组化法检测30例乳腺纤维腺瘤、42例乳腺癌组织中BRCA1和IGF-IR的表达情况,并结合腋窝淋巴结的转移情况、肿瘤大小、病理类型和组织学分级进行相关分析。结果IGF-IR在乳腺纤维腺瘤中的阳性表达率46.7%,在乳腺癌中的阳性表达率88.1%,在乳腺癌中的表达与腋窝淋巴结的转移情况、肿瘤大小、病理类型和组织学分级无关(P>0.05);BRCA1在乳腺纤维腺瘤中的阳性表达率86.7%,在乳腺癌中的阳性表达率52.4%,乳腺癌中腋窝有淋巴结转移的表达率明显低于无淋巴结转移的表达率(P<0.05),并随着肿瘤分级的升高有逐渐下降趋势,其中Ⅰ级和Ⅲ级、Ⅱ级和Ⅲ级间的差异有统计学意义(P<0.05),Ⅰ级与Ⅱ级间差异无统计学意义(P=0.075),BRCA1的表达与肿瘤的组织学类型、肿块大小无关(P>0.05);IGF1R和BRCA1在乳腺癌中的表达无相关性(2=1.620,P>0.05)。结论IGF1R和BRCA1在乳腺癌中的发生发展过程中有重要的作用,它们有可能成为临床对乳腺癌诊断、靶基因治疗和判断预后的分子生物学指标;另外IGF1R和BRCA1在乳腺癌的发生中可能是两个独立事件。
出处 《广东医学》 CAS CSCD 北大核心 2010年第1期90-92,共3页 Guangdong Medical Journal
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