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Circulating inflammatory cells in patients with metastatic breast cancer: Implications for treatment.

ABSTRACT: Adaptive and innate immune cells play a crucial role as regulators of cancer development. Inflammatory cells in blood flow seem to be involved in pro-tumor activities and contribute to breast cancer progression. Circulating lymphocyte ratios such as the platelet-lymphocytes ratio (PLR), the monocyte-lymphocyte ratio (MLR) and the neutrophil-lymphocyte ratio (NLR) are new reproducible, routinely feasible and cheap biomarkers of immune response. These indexes have been correlated to prognosis in many solid tumors and there is growing evidence on their clinical applicability as independent prognostic markers also for breast cancer. In this review we give an overview of the possible value of lymphocytic indexes in advanced breast cancer prognosis and prediction of outcome. Furthermore, targeting the immune system appear to be a promising therapeutic strategy for breast cancer, especially macrophage-targeted therapies. Herein we present an overview of the ongoing clinical trials testing systemic inflammatory cells as therapeutic targets in breast cancer.

SUBMITTER: Gianni C

PROVIDER: S-EPMC9393759 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Circulating inflammatory cells in patients with metastatic breast cancer: Implications for treatment.

Gianni Caterina C Palleschi Michela M Schepisi Giuseppe G Casadei Chiara C Bleve Sara S Merloni Filippo F Sirico Marianna M Sarti Samanta S Cecconetto Lorenzo L Di Menna Giandomenico G Schettini Francesco F De Giorgi Ugo U

Frontiers in oncology 20220808

Adaptive and innate immune cells play a crucial role as regulators of cancer development. Inflammatory cells in blood flow seem to be involved in pro-tumor activities and contribute to breast cancer progression. Circulating lymphocyte ratios such as the platelet-lymphocytes ratio (PLR), the monocyte-lymphocyte ratio (MLR) and the neutrophil-lymphocyte ratio (NLR) are new reproducible, routinely feasible and cheap biomarkers of immune response. These indexes have been correlated to prognosis in m ...[more]

PMID: 36003772

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Project description:Traditional factors currently used for prognostic stratification do not always adequately predict treatment response and disease evolution in advanced breast cancer patients. Therefore, the use of blood-based markers, such as circulating tumor cells (CTCs), represents a promising complementary strategy for disease monitoring. In this retrospective study, we explored the role of CTC counts as predictors of disease evolution in breast cancer patients with limited metastatic dissemination.A total of 492 advanced breast cancer patients who had a CTC count assessed by CellSearch prior to starting a new line of systemic therapy were eligible for this analysis. Using the threshold of 5 CTCs/7.5 ml of blood, pretreatment CTC counts were correlated in the overall population with metastatic site distribution, evaluated at baseline and at the time of treatment failure, using Fisher's exact test. Time to visceral progression and time to the development of new metastatic lesions and sites were estimated in patients with nonvisceral metastases and with single-site metastatic disease, respectively, by the Kaplan-Meier method. Survival times were compared between groups according to pretreatment CTC count by logrank test.In the overall population, a pretreatment level ?5 CTCs/7.5 ml was associated with an increased baseline number of metastatic sites compared with <5 CTCs/7.5 ml (P?=?0.0077). At the time of treatment failure, patients with ?5 CTCs/7.5 ml more frequently developed new metastatic lesions and sites compared with those with <5 CTCs/7.5 ml (development of new lesions: P?=?0.0002; development of new sites: P?=?0.0031). Among patients with disease originally confined to nonvisceral sites, ?5 CTCs/7.5 ml was associated with remarkably shorter time to visceral metastases (P?=?0.0021) and overall survival (P?=?0.0006) compared with <5 CTCs/7.5 ml. In patients with single-site metastatic disease, ?5 CTCs/7.5 ml was associated with a significant reduction of the time to development of new metastatic sites (P?=?0.0051) and new lesions (P?=?0.0002) and with worse overall survival (P?=?0.0101).Our results suggest that baseline CTC counts can be used as an early predictor of metastatic potential in breast cancer patients with limited metastatic dissemination.

Dataset Information

Circulating inflammatory cells in patients with metastatic breast cancer: Implications for treatment.

Publications

Circulating inflammatory cells in patients with metastatic breast cancer: Implications for treatment.

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