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

ABSTRACT: 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.

SUBMITTER: De Giorgi U

PROVIDER: S-EPMC6696837 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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

De Giorgi Ugo U Mego Michal M Scarpi Emanuela E Giordano Antonio A Giuliano Mario M Valero Vicente V Alvarez Ricardo H RH Ueno Naoto T NT Cristofanilli Massimo M Reuben James M JM

Therapeutic advances in medical oncology 20190814

<h4>Background</h4>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).<h4>Methods</h4>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 o ...[more]

PMID: 31452692

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Project description:PURPOSE:Liquid biopsies, including circulating tumor DNA (ctDNA) and circulating tumor cells (CTCs), can be used to understand disease prognosis, tumor heterogeneity, and dynamic response to treatment in metastatic breast cancer (MBC). We explored a novel, 180-gene ctDNA panel and the association of this platform with CTCs and CTC clusters. METHODS:A total of 40 samples from 22 patients with MBC were included in the study. For the primary analysis, all patients had ctDNA sequencing using the PredicinePLUS™ platform. CTCs and CTC clusters were examined using the CellSearch™ System. Clinical and pathological variables were reported using descriptive analyses. Associations between CTC count and specific genomic alterations were tested using the Mann-Whitney U test. RESULTS:Of 43 sequenced patients, 40 (93%) had at least one detectable genomic alteration with a median of 6 (range 1-22). Fifty-seven different genes were altered, and the landscape of genomic alterations was representative of MBC, including the commonly encountered alterations TP53, PTEN, PIK3CA, ATM, BRCA1, CCND1, ESR1, and MYC. In patients with predominantly hormone-receptor-positive MBC, the number of CTCs was significantly associated with alterations in ESR1 (P < 0.005), GATA3 (P < 0.05), CDH1 (P < 0.0005), and CCND1 (P < 0.05) (Mann-Whitney U test). Thirty-six percent of patients had CTC clusters, which were associated with alterations in CDH1, CCND1, and BRCA1 (all P < 0.05, Mann-Whitney U test). In an independent validation cohort, CTC enumeration confirmed significant associations with ESR1 and GATA3, while CTC clusters were significantly associated with CDH1. CONCLUSIONS:We report on a novel ctDNA platform that detected genomic alterations in the vast majority of tested patients, further indicating potential clinical utility for capturing disease heterogeneity and for disease monitoring. Detection of CTCs and CTC clusters was associated with particular genomic profiles.

Dataset Information

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

Publications

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

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