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Macrophages in human breast disease: a quantitative immunohistochemical study
P M Kelly1, R S Davison, E Bliss
1Nuffield Department of Pathology, University of Oxford, John Radcliffe Hospital, UK.
British Journal of Cancer
|February 1, 1988
Summary
This study found significantly more macrophages in malignant breast tumors than benign ones. However, macrophage counts did not correlate with tumor stage, grade, or prognosis in malignant cases.
Area of Science:
- Oncology
- Immunohistochemistry
- Pathology
Background:
- Macrophages play a role in tumor microenvironments.
- Previous studies using different markers yielded conflicting results on macrophage presence in breast cancer.
Purpose of the Study:
- To quantitatively assess macrophage infiltration in benign and malignant breast tissues.
- To investigate the relationship between macrophage numbers and clinicopathological features of malignant breast tumors.
Main Methods:
- Quantitative histological analysis of 34 breast biopsies.
- Immunohistochemical staining using the monoclonal antibody EBM/11 to identify human macrophages.
Main Results:
- Both benign and malignant breast tissues harbored macrophages.
- Significantly higher macrophage numbers were observed in malignant tissues compared to benign ones.
- No correlation was found between macrophage counts and tumor stage, grade, or prognostic index in malignant tumors.
Conclusions:
- Macrophages are significantly increased in malignant breast tissue.
- The number of macrophages in malignant breast tumors does not correlate with established prognostic factors.
- Discrepancies with prior studies may be due to differences in macrophage markers used.