TOPOⅡα联合Ki67预测三阴性乳腺癌新辅助化疗疗效的临床应用价值

2018-01-23 00:35韩忠华林舜国许春森韩晖
中外医疗 2017年33期
关键词:乳腺肿瘤新辅助化疗

韩忠华+林舜国+许春森+韩晖

[摘要] 目的 探讨拓扑异构酶Ⅱα(TOPOⅡα)联合Ki67在预测三阴性乳腺癌新辅助化疗疗效的临床应用价值。 方法方便选取并回顾性分析2013年1月—2016年12月就诊该院乳腺外科82例三阴性乳腺癌患者,均接受蒽环联合紫杉方案新辅助化疗,探讨TOPOⅡα、Ki67表达与化疗疗效之间的相关性。 结果 82例三阴性乳腺癌患者整体pCR率为20.7%(17/82);TOPOⅡα高表达率为42.6%(35/82),pCR率为25.7%(9/35),高于低表达者pCR率17.0%(8/47),差异无统计学意义(P>0.05);Ki67高表达率为67.1%(55/82),pCR率为25.4%(14/55),高于低表达者pCR率11.1%(3/27),差异无统计学意义(P>0.05);TOPOⅡα、Ki67二者均高表达者pCR率达53.53%(8/19),明显高于整体pCR率,差异有统计学意义(P<0.01)。结论 TOPOⅡα联合Ki67表达对三阴性乳腺癌新辅助化疗疗效具有预测价值,可以为术后个体化治疗提供参考依据。

[关键词] 乳腺肿瘤;新辅助化疗;Ki67;拓扑异构酶Ⅱ

[中图分类号] R737 [文献标识码] A [文章编号] 1674-0742(2017)11(c)-0020-03

[Abstract] Objective This paper tries to investigate the clinical value of topoisomerase Ⅱα (TOPOⅡα) combined with Ki67 in predicting the efficacy of neoadjuvant chemotherapy for triple negative breast cancer. Methods A retrospective analysis of 82 cases of triple negative breast cancer from January 2013 to December 2016 was carried out, and all of whom received anthracycline combined with paclitaxel neoadjuvant chemotherapy, aiming to investigate the relationship between the expression of TOPO II and Ki67 and the efficacy of chemotherapy. Results The whole pCR rate was 20.7% (17/82) among the 82 patients with triple negative breast cancer; the high expression rate of TOPOⅡαwas 42.6% (35/82), pCR rate was 25.7% (9/35), higher than the low expression rate of pCR of 17.0%(8/47), the difference was not statistically significant (P>0.05); high expression rate of Ki67 was 67.1% (55/82), pCR rate was 25.4% (14/55), higher than the low expression rate of 11.1% (3/27), the difference was not statistically significant (P>0.05); pCR rate reached 53.53%(8/19) when TOPOⅡαand Ki67 with high expression rate, significantly higher than that of the overall rate of pCR, the difference was statistically significant (P<0.01). Conclusion TOPOⅡα combined with Ki67 expression has predictive value for neoadjuvant chemotherapy in triple negative breast cancer, which can provide reference for individualized treatment after operation.

[Key words] Breast neoplasms; Neoadjuvant chemotherapy; Ki67; Topoisomerase II

目前,乳腺癌已進入分类治疗时代,三阴性乳腺癌(TNBC)因无治疗性靶点,主要治疗手段仍是化疗。虽然整体疗效较差,但部分患者对化疗敏感,表现出与管腔(Luminal)A型相似的良好预后[1]。该研究通过检测化疗前组织标本TOPOⅡα及Ki67表达,探讨其预测三阴性乳腺癌新辅助化疗疗效的应用价值,以期为临床床选择治疗方式及临床评价手段提供参考,现报道如下。

1 资料与方法

1.1 一般资料

方便选取并回顾性分析就诊于福建医科大学附属协和医院乳腺外科三阴性乳腺癌新辅助化疗患者临床病理资料。患者均为女性,年龄24~63岁,中位年龄41岁。入组标准:研究对象均有完整的临床病理资料,化疗前空芯针穿刺活检确诊为浸润性乳腺癌,临床分期为II~III期,免疫组化分型为三阴性,接受紫杉联合蒽环类方案新辅助化疗,化疗周期数>4周期,术后2周左右接受根治性手术或保乳手术。排除标准:患者既往有放化疗治疗病史,炎性乳腺癌,双侧乳腺癌及妊娠期乳腺癌,一般临床资料:年龄≤40岁33例,>40岁49例;绝经前58例,绝经后24例;临床TNM分期:II期26例,III期56例;病理类型:浸润性导管癌70例,其他12例;组织学分级:1~2级44例,3级38例;Ki67≤14% 27例,Ki67 >14% 55例,TOPOⅡα低表达组47例,TOPOⅡα高表达组35例。endprint

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