陆军军医大学(第三军医大学)第一附属医院乳腺甲状腺外科,重庆
ZHANG Yi, E-mail: yzhang@tmmu.edu.cn
Received:15 October 2025,
Revised:2025-11-15,
Accepted:16 November 2025,
Published:30 November 2025
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王成方,周于钦,张艳玲,等.基于中国人群的雌激素受体表达新分层(低/中/高)可更精准地预测HR+/HER2-早期乳腺癌患者的预后[J].陆军军医大学学报,2025,47(22):2792-2804.DOI:10.16016/j.2097-0927.202510028.
WANG C F,ZHOU Y Q,ZHANG Y L,et al.A novel estrogen receptor expression stratification (low/moderate/high) based on Chinese population provides more accurate prognosis prediction for HR+/HER2- early breast cancer patients[J].J Army Med Univ,2025,47(22):2792-2804.DOI:10.16016/j.2097-0927.202510028.
王成方,周于钦,张艳玲,等.基于中国人群的雌激素受体表达新分层(低/中/高)可更精准地预测HR+/HER2-早期乳腺癌患者的预后[J].陆军军医大学学报,2025,47(22):2792-2804.DOI:10.16016/j.2097-0927.202510028. DOI:
WANG C F,ZHOU Y Q,ZHANG Y L,et al.A novel estrogen receptor expression stratification (low/moderate/high) based on Chinese population provides more accurate prognosis prediction for HR+/HER2- early breast cancer patients[J].J Army Med Univ,2025,47(22):2792-2804.DOI:10.16016/j.2097-0927.202510028. DOI:
目的
2
探索雌激素受体(Estrogen Receptor,ER)阳性/人表皮生长因子受体2(Human Epidermal growth factor Receptor 2,HER2)阴性乳腺癌患者ER表达水平新分层,为不同ER表达水平患者的预后判断提供新证据并指导精准内分泌治疗(endocrine therapy,ET)。
方法
2
本研究为回顾性队列研究,纳入2013年1月1日至2018年12月31日在陆军军医大学第一附属医院乳腺甲状腺外科进行手术治疗的1 962例ER阳性/HER2阴性早期乳腺癌患者。利用X-tile软件确定ER表达量的最佳截点,将患者分为低表达(1%~10%)、中表达(>10%~30%)及ER高表达(>30%~100%)3组。通过倾向性评分匹配(propensity score matching, PSM)平衡基线,比较3组间的预后差异,并进一步分析3组患者对不同内分泌治疗方式的应答情况;构建Cox比例风险回归模型分析3组乳腺癌患者的预后影响因素,并进行亚组分析。
结果
2
经PSM后,129例(11.5%)为ER低表达,151例(13.5%)为ER中表达,840例(75%)为ER高表达。3组患者的无病生存期(disease free survival,DFS)和总生存期(overall survival,OS)存在统计学差异(
P
=8e
-6
,
P
=8e
-14
)。在ER低表达患者中,接受选择性雌激素受体调节剂(selective estrogen receptor modulator,SERM)治疗或芳香化酶抑制剂(aromatase inhibitor,AI)治疗,其DFS和OS均无统计学差异。而接受AI治疗的ER中表达及高表达患者,其DFS获益均较SERM组更优(
P
=0.02,
P
=0.03)。多因素分析显示,与ER中表达组相比,ER高表达组疾病复发/转移风险[
HR
=0.62(95%
CI
: 0.43~0.88),
P
=0.009]和死亡风险[
HR
=0.49(95%
CI
: 0.26~0.93),
P
=0.03]均显著降低。亚组分析显示,ER中表达组在口服SERM亚组、非保乳患者亚组、淋巴结转移患者亚组、TNM分
期Ⅱ期患者以及接受化疗患者亚组的DFS较高表达组差,在口服SERM组、非保乳患者亚组、淋巴结转移患者亚组、TNM分期Ⅱ期以及接受化疗患者亚组的OS较高表达组差。
结论
2
本研究证实将ER中表达(11%~30%)作为独立分层可指导更精准的预后判断和更合理的内分泌治疗选择。
Objective
2
To stratify the estrogen receptor (ER) positive while human epidermal growth factor receptor 2 (HER2) negative breast cancer patients by the expression level of ER
providing new evidence for prognostic prediction and guiding precision endocrine therapy (ET) for those with different ER expression levels.
Methods
2
A retrospective cohort study was conducted on 1 962 ER-positive/HER2-negative breast cancer patients treated in our department from January 1
2013 to December 31
2018. X-tile was used to calculate the optimal cutoff point of ER expression level
and then based on the results
they were divided into low (1%~10%)
moderate (11%~30%)
and high expression (31%~100%) groups. After propensity score matching (PSM) was performed to balance baseline characteristics
their prognostic outcomes were compared and the responses to ET were analyzed in the groups. Cox proportional risk regression model was applied to analyze the prognostic factors
and subgroup analysis was further performed.
Results
2
After PAM
129 (11.5%) were assigned into a low ER expression group
151 (13.5%) and 840 (75%) into moderate and high ER expression groups
respectively. Statistical differences were observed in disease-free survival (DFS) and overall survival (OS) among the 3 groups (
P
=8e-6
P
=8e-14). In the low ER expression group
the patients treated with selective estrogen receptor modulators (SERMs) showed no significant differences in DFS and OS than those treated with aromatase inhibitors (AIs) (
P
>
0.05). However
the patients from the moderate and high ER expression groups demonstrated significantly better DFS when treated with AI than with SERM (
P
=0.02
P
=0.03). Multivariate analysis showed that compared with the moderate ER expression group
the high ER expression group exhibited significantly lower risk of disease recurrence/metastasis (
HR
=0.62
95%
CI
: 0.43~0.88
P
=0.009) and risk of death (
HR
=0.49
95%
CI
: 0.26~0.93
P
=0.03). Subgroup analysis revealed that when compared with the high ER expression group
the moderate ER expression group exhibited notably worse DFS in the following subgroups: oral SERM
non-breast-conserving surgery
lymph node metastasis
TNM stage Ⅱ
and chemotherapy
and shorter OS in the subgroups of oral SERM
non-breast-conserving surgery
lymph node metastasis
TNM stage Ⅱ subgroup
and chemotherapy.
Conclusion
2
Taking ER expression of 11%~30% as an independent stratification criterion can guide more accurate prognostic assessment and more rational ET selection in ER-positive/HER2-negative breast cancer patients.
WU Y J , HE S Y , CAO M D , et al . Corrigendum: Comparative analysis of cancer statistics in China and the United States in 2024 [J]. Chin Med J , 2025 , 138 ( 10 ): 1260 . DOI: 10.1097/CM9.0000000000003619 http://dx.doi.org/10.1097/CM9.0000000000003619 .
郑荣寿 , 陈茹 , 韩冰峰 , 等 . 2022年中国恶性肿瘤流行情况分析 [J]. 中华肿瘤杂志 , 2024 , 46 ( 3 ): 221 - 231 . DOI: 10.3760/cma.j.cn112152-20240119-00035 http://dx.doi.org/10.3760/cma.j.cn112152-20240119-00035 .
ZHENG R S , CHEN R , HAN B F , et al . Cancer incidence and mortality in China, 2022 [J]. Chin J Oncol , 2024 , 46 ( 3 ): 221 - 231 . DOI: 10.3760/cma.j.cn112152-20240119-00035 http://dx.doi.org/10.3760/cma.j.cn112152-20240119-00035 .
HUPPERT L A , GUMUSAY O , IDOSSA D , et al . Systemic therapy for hormone receptor-positive/human epidermal growth factor receptor 2-negative early stage and metastatic breast cancer [J]. CA Cancer J Clin , 2023 , 73 ( 5 ): 480 - 515 . DOI: 10.3322/caac.21777 http://dx.doi.org/10.3322/caac.21777 .
COPUR M S . Systemic therapy for estrogen receptor-positive, HER2-negative breast cancer [J]. N Engl J Med , 2021 , 384 ( 12 ): 1176 . DOI: 10.1056/NEJMc2101282 http://dx.doi.org/10.1056/NEJMc2101282 .
Jr ROSKOSKI R . Targeted and cytotoxic inhibitors used in the treatment of breast cancer [J]. Pharmacol Res , 2024 , 210 : 107534 . DOI: 10.1016/j.phrs.2024.107534 http://dx.doi.org/10.1016/j.phrs.2024.107534 .
KREIDIEH F , SADEK R F , ZHANG L F , et al . Validity of 1% hormonal receptor positivity cutoff by the ASCO/College of American Pathologists guidelines at the Georgia Cancer Center [J]. JCO Precis Oncol , 2022 , 6 : e2100201 . DOI: 10.1200/PO.21.00201 http://dx.doi.org/10.1200/PO.21.00201 .
PAAKKOLA N M , KARAKATSANIS A , MAURI D , et al . The prognostic and predictive impact of low estrogen receptor expression in early breast cancer: a systematic review and meta-analysis [J]. ESMO Open , 2021 , 6 ( 6 ): 100289 . DOI: 10.1016/j.esmoop.2021.100289 http://dx.doi.org/10.1016/j.esmoop.2021.100289 .
HONG R X , XU B H . Breast cancer: an up-to-date review and future perspectives [J]. Cancer Commun , 2022 , 42 ( 10 ): 913 - 936 . DOI: 10.1002/cac2.12358 http://dx.doi.org/10.1002/cac2.12358 .
WHELAN T J , OLIVOTTO I A , PARULEKAR W R , et al . Regional nodal irradiation in early-stage breast cancer [J]. N Engl J Med , 2015 , 373 ( 4 ): 307 - 316 . DOI: 10.1056/NEJMoa1415340 http://dx.doi.org/10.1056/NEJMoa1415340 .
DAVIES C , GODWIN J , GRAY R , et al . Relevance of breast cancer hormone receptors and other factors to the efficacy of adjuvant tamoxifen: patient-level meta-analysis of randomised trials [J]. Lancet , 2011 , 378 ( 9793 ): 771 - 784 . DOI: 10.1016/S0140-6736(11)60993-8 http://dx.doi.org/10.1016/S0140-6736(11)60993-8 .
BURSTEIN H J , LACCHETTI C , ANDERSON H , et al . Adjuvant endocrine therapy for women with hormone receptor-positive breast cancer: ASCO clinical practice guideline focused update [J]. J Clin Oncol , 2019 , 37 ( 5 ): 423 - 438 . DOI: 10.1200/JCO.18.01160 http://dx.doi.org/10.1200/JCO.18.01160 .
HORTOBAGYI G N , STEMMER S M , BURRIS H A , et al . Ribociclib as first-line therapy for HR-positive, advanced breast cancer [J]. N Engl J Med , 2016 , 375 ( 18 ): 1738 - 1748 . DOI: 10.1056/NEJMoa1609709 http://dx.doi.org/10.1056/NEJMoa1609709 .
JACQUET E , LARDY-CLÉAUD A , PISTILLI B , et al . Endocrine therapy or chemotherapy as first-line therapy in hormone receptor-positive HER2-negative metastatic breast cancer patients [J]. Eur J Cancer , 2018 , 95 : 93 - 101 . DOI: 10.1016/j.ejca.2018.03.013 http://dx.doi.org/10.1016/j.ejca.2018.03.013 .
SIMON J , CHAIX M , BILLA O , et al . Survival in patients with HR+/HER2- metastatic breast cancer treated with initial endocrine therapy versus initial chemotherapy. A French population-based study [J]. Br J Cancer , 2020 , 123 ( 7 ): 1071 - 1077 . DOI: 10.1038/s41416-020-0979-3 http://dx.doi.org/10.1038/s41416-020-0979-3 .
ALLISON K H , HAMMOND M E H , DOWSETT M , et al . Estrogen and progesterone receptor testing in breast cancer: ASCO/CAP guideline update [J]. J Clin Oncol , 2020 , 38 ( 12 ): 1346 - 1366 . DOI: 10.1200/JCO.19.02309 http://dx.doi.org/10.1200/JCO.19.02309 .
CUZICK J , SESTAK I , BAUM M , et al . Effect of anastrozole and tamoxifen as adjuvant treatment for early-stage breast cancer: 10-year analysis of the ATAC trial [J]. Lancet Oncol , 2010 , 11 ( 12 ): 1135 - 1141 . DOI: 10.1016/S1470-2045(10)70257-6 http://dx.doi.org/10.1016/S1470-2045(10)70257-6 .
RUHSTALLER T , GIOBBIE-HURDER A , COLLEONI M , et al . Adjuvant letrozole and tamoxifen alone or sequentially for postmenopausal women with hormone receptor-positive breast cancer: long-term follow-up of the BIG 1-98 trial [J]. J Clin Oncol , 2019 , 37 ( 2 ): 105 - 114 . DOI: 10.1200/JCO.18.00440 http://dx.doi.org/10.1200/JCO.18.00440 .
TELLI M L , CHANG E T , KURIAN A W , et al . Asian ethnicity and breast cancer subtypes: a study from the California Cancer Registry [J]. Breast Cancer Res Treat , 2011 , 127 ( 2 ): 471 - 478 . DOI: 10.1007/s10549-010-1173-8 http://dx.doi.org/10.1007/s10549-010-1173-8 .
YI M , HUO L , KOENIG K B , et al . Which threshold for ER positivity? a retrospective study based on 9639 patients [J]. Ann Oncol , 2014 , 25 ( 5 ): 1004 - 1011 . DOI: 10.1093/annonc/mdu053 http://dx.doi.org/10.1093/annonc/mdu053 .
TOY W , SHEN Y , WON H , et al . ESR1 ligand-binding domain mutations in hormone-resistant breast cancer [J]. Nat Genet , 2013 , 45 ( 12 ): 1439 - 1445 . DOI: 10.1038/ng.2822 http://dx.doi.org/10.1038/ng.2822 .
MARTINKOVICH S , SHAH D , PLANEY S L , et al . Selective estrogen receptor modulators: tissue specificity and clinical utility [J]. Clin Interv Aging , 2014 , 9 : 1437 - 1452 . DOI: 10.2147/CIA.S66690 http://dx.doi.org/10.2147/CIA.S66690 .
MAURELLI S , CHIESA M , GIAMELLO E , et al . Direct spectroscopic evidence for binding of anastrozole to the iron heme of human aromatase. Peering into the mechanism of aromatase inhibition [J]. Chem Commun , 2011 , 47 ( 38 ): 10737 - 10739 . DOI: 10.1039/c1cc13872c http://dx.doi.org/10.1039/c1cc13872c .
BERTELSEN B E , ALMÅS B , FJERMEROS K , et al . Superior suppression of serum estrogens during neoadjuvant breast cancer treatment with letrozole compared to exemestane [J]. Breast Cancer Res Treat , 2024 , 206 ( 2 ): 347 - 358 . DOI: 10.1007/s10549-024-07313-x http://dx.doi.org/10.1007/s10549-024-07313-x .
LISZTWAN J , PORNON A , CHEN B , et al . The aromatase inhibitor letrozole and inhibitors of insulin-like growth factor I receptor synergistically induce apoptosis in in vitro models of estrogen-dependent breast cancer [J]. Breast Cancer Res , 2008 , 10 ( 4 ): R56 . DOI: 10.1186/bcr2113 http://dx.doi.org/10.1186/bcr2113 .
CAMP R L , DOLLED-FILHART M , RIMM D L . X-tile: a new bio-informatics tool for biomarker assessment and outcome-based cut-point optimization [J]. Clin Cancer Res , 2004 , 10 ( 21 ): 7252 - 7259 . DOI: 10.1158/1078-0432.CCR-04-0713 http://dx.doi.org/10.1158/1078-0432.CCR-04-0713 .
LIU H , LV L , QU Y D , et al . Prediction of cancer-specific survival and overall survival in middle-aged and older patients with rectal adenocarcinoma using a nomogram model [J]. Transl Oncol , 2021 , 14 ( 1 ): 100938 . DOI: 10.1016/j.tranon.2020.100938 http://dx.doi.org/10.1016/j.tranon.2020.100938 .
MA T , WU Z J , ZHANG X P , et al . Development and validation of a prognostic scoring model for mortality risk stratification in patients with recurrent or metastatic gastric carcinoma [J]. BMC Cancer , 2021 , 21 ( 1 ): 1326 . DOI: 10.1186/s12885-021-09079-7 http://dx.doi.org/10.1186/s12885-021-09079-7 .
LIU M W , MIAO L , ZHENG R S , et al . Number of involved nodal stations: a better lymph node classification for clinical stage IA lung adenocarcinoma [J]. J Natl Cancer Cent , 2023 , 3 ( 3 ): 197 - 202 . DOI: 10.1016/j.jncc.2023. 07.001 http://dx.doi.org/10.1016/j.jncc.2023.07.001 .
LIU L , JI J , GE X X , et al . Prognostic value of tumor deposits and positive lymph node ratio in stage III colorectal cancer: a retrospective cohort study [J]. Int J Surg , 2024 , 110 ( 6 ): 3470 - 3479 . DOI: 10.1097/JS9.0000000000001295 http://dx.doi.org/10.1097/JS9.0000000000001295 .
LIU Y , YAN W B , CHEN Y P , et al . Treatment response-adapted risk index model for survival prediction and adjuvant chemotherapy selection in nonmetastatic nasopharyngeal carcinoma [J]. NPJ Digit Med , 2025 , 8 ( 1 ): 564 . DOI: 10.1038/s41746-025-01918-2 http://dx.doi.org/10.1038/s41746-025-01918-2 .
BAIK I . Optimal cutoff points of waist circumference for the criteria of abdominal obesity: comparison with the criteria of the International Diabetes Federation [J]. Circ J , 2009 , 73 ( 11 ): 2068 - 2075 . DOI: 10.1253/circj.cj-09-0303 http://dx.doi.org/10.1253/circj.cj-09-0303 .
TASHIMA R , NISHIMURA R , OSAKO T , et al . Evaluation of an optimal cut-off point for the ki-67 index as a prognostic factor in primary breast cancer: a retrospective study [J]. PLoS One , 2015 , 10 ( 7 ): e0119565 . DOI: 10.1371/journal.pone.0119565 http://dx.doi.org/10.1371/journal.pone.0119565 .
HEINZE G , JÜNI P . An overview of the objectives of and the approaches to propensity score analyses [J]. Eur Heart J , 2011 , 32 ( 14 ): 1704 - 1708 . DOI: 10.1093/eurheartj/ehr031 http://dx.doi.org/10.1093/eurheartj/ehr031 .
AUSTIN P C . An introduction to propensity score methods for reducing the effects of confounding in observational studies [J]. Multivariate Behav Res , 2011 , 46 ( 3 ): 399 - 424 . DOI: 10.1080/00273171.2011.568786 http://dx.doi.org/10.1080/00273171.2011.568786 .
DA COSTA B R , GAHL B , JÜNI P . Tools & techniques: statistics: propensity score techniques [J]. EuroIntervention , 2014 , 10 ( 6 ): 761 - 767 . DOI: 10.4244/EIJV10I6A130 http://dx.doi.org/10.4244/EIJV10I6A130 .
WAN A D , LIANG Y , CHEN L , et al . Association of long-term oncologic prognosis with minimal access breast surgery vs conventional breast surgery [J]. JAMA Surg , 2022 , 157 ( 12 ): e224711 . DOI: 10.1001/jamasurg.2022.4711 http://dx.doi.org/10.1001/jamasurg.2022.4711 .
WANG S V , JIN Y Z , FIREMAN B , et al . Relative performance of propensity score matching strategies for subgroup analyses [J]. Am J Epidemiol , 2018 , 187 ( 8 ): 1799 - 1807 . DOI: 10.1093/aje/kwy049 http://dx.doi.org/10.1093/aje/kwy049 .
BADVE S S , BAEHNER F L , GRAY R P , et al . Estrogen- and progesterone-receptor status in ECOG 2197: comparison of immunohistochemistry by local and central laboratories and quantitative reverse transcription polymerase chain reaction by central laboratory [J]. J Clin Oncol , 2008 , 26 ( 15 ): 2473 - 2481 . DOI: 10.1200/JCO.2007.13.6424 http://dx.doi.org/10.1200/JCO.2007.13.6424 .
IWAMOTO T , BOOSER D , VALERO V , et al . Estrogen receptor (ER) mRNA and ER-related gene expression in breast cancers that are 1% to 10% ER-positive by immunohistochemistry [J]. J Clin Oncol , 2012 , 30 ( 7 ): 729 - 734 . DOI: 10.1200/JCO.2011.36.2574 http://dx.doi.org/10.1200/JCO.2011.36.2574 .
POON I K , TSANG J Y , LI J , et al . The significance of highlighting the oestrogen receptor low category in breast cancer [J]. Br J Cancer , 2020 , 123 ( 8 ): 1223 - 1227 . DOI: 10.1038/s41416-020-1009-1 http://dx.doi.org/10.1038/s41416-020-1009-1 .
TOKINIWA H , HORIGUCHI J , TAKATA D , et al . Topoisomerase II alpha expression and the Ki-67 labeling index correlate with prognostic factors in estrogen receptor-positive and human epidermal growth factor type-2-negative breast cancer [J]. Breast Cancer , 2012 , 19 ( 4 ): 309 - 314 . DOI: 10.1007/s12282-011-0291-4 http://dx.doi.org/10.1007/s12282-011-0291-4 .
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