Karcinom prsu u mladých žen - korelace klinických, histomorfologických a molekulárně-genetických nálezů karcinomu prsu u žen mladších 35 let
[Breast Cancer in Young Women - Correlation of Clinical Histomorphological, and Molecular-genetic Features of Breast Carcinoma in Women Younger than 35 Years of Age]
Language Czech Country Czech Republic Media print
Document type Journal Article
PubMed
28612617
DOI
10.14735/amko2017202
PII: 61113
- MeSH
- Adult MeSH
- Genes, BRCA1 MeSH
- Genes, BRCA2 MeSH
- Incidence MeSH
- Humans MeSH
- Mutation MeSH
- Biomarkers, Tumor analysis biosynthesis MeSH
- Breast Neoplasms epidemiology genetics pathology MeSH
- Prognosis MeSH
- Retrospective Studies MeSH
- Check Tag
- Adult MeSH
- Humans MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Biomarkers, Tumor MeSH
BACKGROUND: Worldwide, breast cancer is the leading type of malignancy in women. For premenopausal women, the disease brings much higher risk as it is usually more aggressive with worse prognosis. PATIENTS AND METHODS: In this retrospective study, 92 women treated at the Department of Oncology and Radiotherapy in Pilsen were selected from a basic cohort of 356 women under 35 years of age with breast cancer who were diagnosed between 2006 and 2015. The control group comprised 100 postmenopausal women over 65 years of age who were treated for invasive breast cancer. RESULTS: Overexpression of HER2/neu protein and a triple-negative immunoprofile and basal-like phenotype of cancer were more frequently seen in the women under 35 years of age. In addition, malignant cells were poorly differentiated and more aggressive, and prognostically favourable types were not often seen, in these women. In terms of the course of disease, the outcome was worse for the younger patients, and complete remission was reached less frequently and more cases of advanced disease and death due to the malignancy were detected. CONCLUSION: The incidence of invasive breast cancer in young women is low, representing around 2% of all cases of the disease, but this group of patients is prognostically very important. The cancers at such a young age are usually more aggressive (higher mitotic activity and higher grade), and prognostically worse types, such as triple-negative or basal-like, are seen significantly more often in younger patients. This retrospective study confirmed this premise. Moreover, breast cancer in young women is more often associated with genetic predisposition (e.g., hereditary mutations in BRCA1 and BRCA2 genes) than in older women.Key words: breast cancer - young women - triple negative breast cancer - BRCA mutation - basal-like - tumor-suppressor genes This work was partially supported by the Charles University research fund (project number SVV-2016-260 282). The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.Submitted: 10. 1. 2017Accepted: 15. 3. 2017.
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