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Association between circulating tumor cells and peripheral blood monocytes in metastatic breast cancer

De Giorgi, U
; 
Mego, M
; 
Scarpi, E
; 
Giordano, A
; 
Giuliano, M
; 
Valero, V
; 
Alvarez, RH
; 
Ueno, NT
; 
Cristofanilli, M
; 
Reuben, JM
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Journal Article
Date
2019-08-01
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CTC
 breast cancer
 circulating tumor cells
 inflammation
 monocytes
 prognosis
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http://hdl.handle.net/20.500.12613/4312
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10.1177/1758835919866065
Abstract
© The Author(s), 2019. Background: We retrospectively evaluated the correlation between a baseline measurement of circulating tumor cells (CTCs) and inflammation-based scores in patients with metastatic breast cancer (MBC). Methods: The optimal value of inflammation-based scores as the neutrophil–lymphocyte ratio (NLR), platelet–lymphocyte ratio (PLR), monocyte–lymphocyte ratio (MLR) and systemic immune-inflammation index (SII) to predict survival was determined and compared with CTC <5 or ⩾5 per 7.5 ml of blood. Results: In the overall population of 516 women with MBC, CTCs correlated with peripheral blood monocytes (p = 0.008) and neutrophils (p = 0.038). In triple-negative tumors, CTCs correlated with monocyte count (p = 0.009); in HER2+ tumors, CTCs correlated with neutrophil count (p = 0.009), with a trend versus monocyte count (p = 0.061), whereas no correlation was found in HER2– estrogen receptor-positive (ER+) tumors. In multivariate analysis only monocytes were associated with ⩾5 CTCs (OR = 2.72, 95% CI 1.09–6.80, p = 0.033). In multivariable analysis for predictors of overall survival, CTC (⩾5 versus <5), number of metastatic sites (>1 versus 1), tumor subtypes (triple-negative versus HER2– ER+ tumors) and MLR only remained significant. Conclusions: CTC and MLR are predictors of overall survival in MBC. CTC correlates with monocytes, in particular in triple-negative tumors.
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SAGE Publications
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Therapeutic Advances in Medical Oncology
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