Peripheral blood monocytes could be associated with brain metastasis and affect patient prognosis in breast cancer: a retrospective study - Report - MDSpire
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Peripheral blood monocytes could be associated with brain metastasis and affect patient prognosis in breast cancer: a retrospective study
Clinical Report: The Role of Peripheral Blood Monocyte Levels in Brain Metastasis
Overview
This study investigates the association between peripheral blood monocyte levels and survival outcomes in breast cancer patients with brain metastases (BM). It finds that higher lymphocyte-to-monocyte ratios (LMR) correlate with improved survival, highlighting the potential of monocyte dynamics as prognostic markers.
Background
Brain metastases are a significant complication in breast cancer, affecting up to 30% of patients and leading to increased morbidity and mortality. Understanding the role of immune cells, particularly monocytes, in the metastatic process is crucial for developing effective prognostic tools and treatment strategies. This study aims to elucidate the relationship between monocyte levels and survival outcomes in breast cancer patients with BM.
Data Highlights
Measure
High LMR Group
Low LMR Group
Median Survival (months)
20.0 (95% CI 15.2–28.5)
5.13 (95% CI 3.9–7.5)
Median Survival (months) - PMR
14.17 (95% CI 7.0–18.7)
5.73 (95% CI 3.6–9.9)
AMC Increase
2.11-fold
N/A
Key Findings
The absolute monocyte count (AMC) increased significantly at BM diagnosis compared to initial breast cancer diagnosis (p = 0.038).
Patients in the high LMR group had a median survival of 20.0 months, significantly longer than the low LMR group at 5.13 months (log-rank p < 0.001).
The high platelet-to-monocyte ratio (PMR) group had a median survival of 14.17 months compared to 5.73 months in the low PMR group (log-rank p = 0.028).
Prognostic factors associated with poorer survival included triple-negative breast cancer subtype, low LMR, and a higher number of BMs.
Age and extracranial metastasis had minimal impact on survival outcomes.
Clinical Implications
Monitoring peripheral blood monocyte levels and calculating ratios such as LMR may provide valuable prognostic information for breast cancer patients with brain metastases. These findings suggest that clinicians should consider incorporating these metrics into routine assessments to better inform treatment decisions.
Conclusion
The study underscores the importance of monocyte dynamics in the prognosis of breast cancer patients with brain metastases. Further prospective studies are needed to validate these findings and explore their clinical utility.
