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Triple-negative breast cancer and basal-like subtype : Pathology and targeted therapy
- Source :
- The Journal of Medical Investigation. 68(3-4):213-219
- Publication Year :
- 2021
- Publisher :
- Tokushima University Faculty of Medicine, 2021.
-
Abstract
- Triple-negative breast cancer (TNBC) is a heterogenous disease. For personalized medicine, it is essential to identify and classify tumor subtypes to develop effective therapeutic strategies. Although gene expression profiling has identified several TNBC subtypes, classification of these tumors remains complex. Most TNBCs exhibit an aggressive phenotype, but some rare types have a favorable clinical course. In this review, we summarize the classification and characteristics related to the various TNBC subtypes, including the rare types. Therapeutic methods that are suitable for each subtype are also discussed. Of the intrinsic breast cancer subtypes identified by gene expression analysis, the basal-like subtype specifically displayed decreased expression of an estrogen receptor (ER) and human epidermal growth factor receptor 2 (HER2) cluster. We also present results that characterize the TNBC and basal-like phenotypes. TNBC may be categorized into four major classes : basal-like, immune-enriched, mesenchymal, and luminal androgen receptor. Therapeutic strategies for each subtype have been proposed along with newly approved targeted therapies for TNBC, such as immune checkpoint inhibitors. Understanding the classification of TNBC based on gene expression profiling in association with clinicopathological factors will facilitate accurate pathological diagnosis and effective treatment selection. J. Med. Invest. 68 : 213-219, August, 2021.
- Subjects :
- business.industry
intrinsic subtype
medicine.medical_treatment
Gene Expression Profiling
Estrogen receptor
Triple Negative Breast Neoplasms
General Medicine
Disease
medicine.disease
targeted therapy
Phenotype
General Biochemistry, Genetics and Molecular Biology
Targeted therapy
Gene expression profiling
basal-like subtype
Breast cancer
Receptors, Estrogen
medicine
Cancer research
triple-negative breast cancer
Humans
Personalized medicine
business
Triple-negative breast cancer
Subjects
Details
- Language :
- English
- ISSN :
- 13496867
- Volume :
- 68
- Issue :
- 3-4
- Database :
- OpenAIRE
- Journal :
- The Journal of Medical Investigation
- Accession number :
- edsair.doi.dedup.....9e7334449764e5a126fb91ae59edcae9