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Vessel density assessed by endoglin expression in breast carcinomas with different expression profiles
Nair Lopes1, Bárbara Sousa, Daniella Vieira
1Institute of Pathology and Molecular Immunology of University of Porto (IPATIMUP), Porto, Portugal.
Histopathology
|November 17, 2009
Summary
This study found no significant differences in tumor vascularity across various breast cancer molecular subtypes. Angiogenesis may not be a universally effective therapeutic target in all breast cancer types.
Area of Science:
- Oncology
- Pathology
- Molecular Biology
Background:
- Breast cancer comprises diverse molecular subtypes with varying prognoses.
- Tumor angiogenesis, the formation of new blood vessels, is crucial for tumor growth and metastasis.
- Endoglin is a marker associated with angiogenesis and microvessel density.
Purpose of the Study:
- To investigate the correlation between microvessel density, assessed by endoglin expression, and molecular subtypes of invasive breast carcinoma.
- To determine if angiogenesis represents a potential therapeutic target in specific breast cancer subsets.
Main Methods:
- Analysis of 142 invasive breast carcinomas using immunohistochemical profiling.
- Correlation of endoglin expression with molecular subtypes (e.g., basal-like) and histopathological data.
Main Results:
- While the basal-like subtype showed a trend towards higher microvessel density, no statistically significant differences were observed in tumor vascularity among the different molecular subtypes of breast cancer.
- Endoglin expression did not significantly vary across molecular subtypes.
Conclusions:
- Tumor vascularity does not significantly differ between molecular subtypes of invasive breast cancer.
- The findings suggest that targeting angiogenesis might not be equally effective across all breast cancer molecular subtypes.
