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中华临床医师杂志(电子版) ›› 2022, Vol. 16 ›› Issue (11) : 1081 -1088. doi: 10.3877/cma.j.issn.1674-0785.2022.11.009

乳腺癌·临床研究

早期三阴性乳腺癌中CK5/6的表达特点及其与预后和新辅助化疗疗效的相关性
杨凡1, 张虹2, 李嘉颐3, 辛灵1, 向泓雨1, 刘倩1, 程元甲1, 叶京明1, 段学宁1, 刘荫华1, 徐玲1,(), 张爽2,()   
  1. 1. 100034 北京,北京大学第一医院乳腺疾病中心
    2. 100034 北京,北京大学第一医院病理科
    3. 100034 北京,北京大学第一医院乳腺疾病中心;100035 北京,北京积水潭医院医疗美容科
  • 收稿日期:2022-07-14 出版日期:2022-11-15
  • 通信作者: 徐玲, 张爽
  • 基金资助:
    吴阶平基金会临床科研专项资助基金(320.6750.2021-10-23); 北京大学第一医院交叉临床研究专项课题(2019CR38)

Characteristics of CK5/6 expression in early triple-negative breast cancer: correlation with prognosis and efficacy of neoadjuvant chemotherapy

Fan Yang1, Hong Zhang2, Jiay Li3, Ling Xin1, Hongyu Xiang1, Qian Liu1, Yuanjia Cheng1, Jingming Ye1, Xuening Duan1, Yinhua Liu1, Ling Xu1,(), Shuang Zhang2,()   

  1. 1. Breast Disease Center; Department of Pathology, Peking University First Hospital, Beijing 100034, China
    2. Medical Cosmetology, Beijing Jishuitan Hospital, Beijing 100035, China
  • Received:2022-07-14 Published:2022-11-15
  • Corresponding author: Ling Xu, Shuang Zhang
引用本文:

杨凡, 张虹, 李嘉颐, 辛灵, 向泓雨, 刘倩, 程元甲, 叶京明, 段学宁, 刘荫华, 徐玲, 张爽. 早期三阴性乳腺癌中CK5/6的表达特点及其与预后和新辅助化疗疗效的相关性[J]. 中华临床医师杂志(电子版), 2022, 16(11): 1081-1088.

Fan Yang, Hong Zhang, Jiay Li, Ling Xin, Hongyu Xiang, Qian Liu, Yuanjia Cheng, Jingming Ye, Xuening Duan, Yinhua Liu, Ling Xu, Shuang Zhang. Characteristics of CK5/6 expression in early triple-negative breast cancer: correlation with prognosis and efficacy of neoadjuvant chemotherapy[J]. Chinese Journal of Clinicians(Electronic Edition), 2022, 16(11): 1081-1088.

目的

探索早期三阴性乳腺癌(TNBC)中CK5/6的表达与临床病理特征和预后的关系,以及其与新辅助化疗疗效的相关性。

方法

纳入2009年至2020年就诊于北京大学第一医院乳腺中心、临床病理资料完整、经病理学检测明确为非转移性TNBC患者452例,分析其CK5/6表达的临床病理特点,以及疗效和预后的影响因素。

结果

所有患者平均年龄52.9岁(21~88岁),总体CK5/6阳性率为65.3%,临床分期早、组织学分级高和Ki67 表达水平高是CK5/6表达水平高的影响因素。CK5/6表达与新辅助化疗后病理学完全缓解(pCR)率、无事件生存(EFS)时间和乳腺癌特异生存时间均无统计学相关性,CK5/6阳性者的pCR率为27.5%,3年、5年EFS率分别为86.1%和84.1%;3年、5年乳腺癌特异性生存(BCSS)率分别为94.3%和91.1%。在应用铂类新辅助化疗的人群中,CK5/6阳性者的无事件生存率及乳腺癌特异生存率有更高趋势。

结论

CK5/6是TNBC重要的生物标志物,其表达与组织学分级和肿瘤增殖能力相关,与生存预后无明确相关性。CK5/6阳性可能与含铂类化疗获益相关。

Objective

To explore the relationship of the expression of CK5/6 with clinicopathological features, prognosis, and efficacy of neoadjuvant chemotherapy (NAC) in triple-negative breast cancer (TNBC).

Methods

A retrospective analysis for CK5/6 expression, clinicopathological features, prognosis, and efficacy of NAC was performed on 452 patients treated at Peking University First Hospital from 2009 to 2020 with non-metastatic breast cancer who were confirmed to be triple-negative by pathological examination and had relatively complete clinicopathological data.

Results

The age of the patients ranged from 21 to 88 years (mean age, 52.9 years). The positive rate of CK5/6 in the overall group of patients was 65.3%, and early stage, higher histological grade, and Ki67 expression were factors related to higher CK5/6 expression. There was no significant correlation between CK5/6 expression and pathological complete response rate (pCR), event-free survival (EFS), and breast cancer-specific survival (BCSS). The pCR rate in CK5/6-positive patients was 27.5%. The 3-year and 5-year EFS rates were 86.1% and 84.1%, respectively; the 3-year and 5-year BCSS rates were 94.3% and 91.1%, respectively. EFS and BCSS were higher in CK5/6-positive patients treated with platinum-based neoadjuvant chemotherapy.

Conclusion

CK5/6 is an important biomarker of TNBC, whose expression is correlated with histological grade and tumor proliferation ability, but it has no significant correlation with prognosis. CK5/6 positivity may be associated with the benefit of platinum-based chemotherapy.

表1 临床病理和生物标记物评分系统(CPS+EG)评分项目表9
表2 CK5/6表达与三阴性乳腺癌患者临床病理特征的相关性
表3 CK5/6表达与相关三阴性乳腺癌临床病理特征的多因素logistic分析结果
表4 CK5/6表达与三阴性乳腺癌新辅助化疗效果的相关性
表5 单因素分析EFS、BCSS和三阴性乳腺癌临床病理特征的相关性
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