Patients with Concordant Triple-Negative Phenotype between Primary Breast Cancers and Corresponding Metastases Have Poor Prognosis / 한국유방암학회지
Journal of Breast Cancer
;
: 268-274, 2016.
Article
in English
| WPRIM
| ID: wpr-126243
ABSTRACT
PURPOSE:
We investigated the prognostic impact of discordance between the receptor status of primary breast cancers and corresponding metastases.METHODS:
A total 144 patients with breast cancer and distant metastasis were investigated. The estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) status of primary tumor and corresponding metastases were assessed. Tumor phenotype according to receptor status was classified as triple-negative phenotype (TNP) or non-TNP. Concordance and discordance was determined by whether there was a change in receptor status or phenotype between primary and metastatic lesions.RESULTS:
The rates of discordance between primary breast cancer and metastatic lesions were 18.1%, 25.0%, and 10.3% for ER, PR, and HER2, respectively. The rates of concordant non-TNP, concordant TNP and discordant TNP were 65.9%, 20.9%, and 13.2%, respectively. Patients with concordant ER/PR-negative status had worse postrecurrence survival (PRS) than patients with concordant ER/PR-positive and discordant ER/PR status (p=0.001 and p=0.021, respectively). Patients who converted from HER2-positive to negative after distant metastasis had worst PRS (p=0.040). Multivariate analysis showed that concordant TNP was statistically significant factor for worse PRS (p<0.001).CONCLUSION:
Discordance in receptor status and tumor phenotype between primary breast cancer and corresponding metastatic lesions was observed. Patients with concordant TNP had worse long-term outcomes than patients with concordant non-TNP and discordant TNP between primary and metastatic breast cancer. Identifying the receptor status of metastatic lesions may lead to improvements in patient management and survival.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phenotype
/
Prognosis
/
Breast
/
Breast Neoplasms
/
Receptors, Progesterone
/
Multivariate Analysis
/
Estrogens
/
ErbB Receptors
/
Neoplasm Metastasis
Type of study:
Prognostic study
Limits:
Humans
Language:
English
Journal:
Journal of Breast Cancer
Year:
2016
Type:
Article
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