Journal
ONCOTARGET
Volume 8, Issue 34, Pages 56364-56374Publisher
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.16913
Keywords
androgen receptor; triple negative breast cancer; prognostic biomarker; disease-free survival; overall survival
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Funding
- Shanghai Municipal Commission of Health and Family Planning [201540234]
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In this study we sought to investigate the prevalence and prognostic value of androgen receptor (AR) status in operable triple-negative breast cancer (TNBC) patients. We collected the clinical data of 360 patients with TNBC, and found a positivity AR expression of 31.4% with a cut-off value of 10%. Tumors expressing the negative CK5/6 (P=0.013) and low Ki-67 (P=0.007) are more likely to have positive AR. In multivariate survival analysis, AR expression is correlated with increased DFS (HR=0.467, 95% CI 0.271-0.805; P=0.006) and OS (HR= 0.488, 95% CI 0.267-0.894, P=0.020) independently. In addition, patients with AR+ tumors are more likely to have favorable outcome in patients with young, pre-menopausal, large tumor size, more node involvement (4+), high stage, high grade, vascular invasion+, P53+, CK5/6-, and higher Ki-67. Our study has indicated that the absence of AR might help to identify patients with relatively higher risk of disease relapse and death, and further clinical studies of anti-androgen agents are warranted to enrich the therapeutic strategy options for AR+ TNBCs.
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