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Updated: Jul 5, 2026

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Orthotopic Transplantation of Breast Tumors as Preclinical Models for Breast Cancer
Published on: May 18, 2020
Basal-like breast cancer: a critical review
Emad A Rakha1, Jorge S Reis-Filho, Ian O Ellis
1Department of Histopathology, Nottingham City Hospital National Health Service (NHS) Trust, UK.
Summary
Basal-like breast cancer, often triple-negative, shows aggressive behavior and poor prognosis. Consistent identification and classification are crucial for developing effective treatment strategies for this subtype.
Area of Science:
- Oncology
- Genomics
- Molecular Biology
Background:
- Gene expression profiling reveals distinct breast cancer subtypes.
- Basal-like tumors share characteristics with BRCA1-associated cancers.
- These tumors often present as triple-negative, lacking hormone receptors and HER-2.
Purpose of the Study:
- To review the definition and clinical significance of basal-like breast cancer.
- To address the heterogeneity and classification challenges of this subtype.
- To highlight the need for standardized identification and treatment strategies.
Main Methods:
- Review of existing literature on basal-like breast cancer.
- Analysis of gene expression data and clinical outcomes.
- Discussion of morphologic, genetic, and immunophenotypic features.
Main Results:
- Basal-like breast cancer is associated with aggressive behavior and poor prognosis.
- Lack of a consensus definition complicates routine clinical identification.
- Tumors exhibit distinctive but heterogeneous features.
Conclusions:
- Standardized definitions and classification systems are needed for basal-like breast cancer.
- Further research is required to develop targeted therapies for this subtype.
- Understanding basal-like breast cancer's heterogeneity is key to improving patient outcomes.
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