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Role of ctDNA in Breast Cancer
Marta Sant1, Adrià Bernat-Peguera2, Eudald Felip1,2
1Medical Oncology Department, Catalan Institute of Oncology-Badalona, Hospital Germans Trias i Pujol (HGTiP), 08916 Badalona, Spain.
Cancers
|January 21, 2022
Summary
Circulating tumor DNA (ctDNA) analysis offers new ways to diagnose and monitor breast cancer, reflecting its complexity. ctDNA detection shows promise for early detection, treatment response assessment, and guiding therapy in advanced stages.
Area of Science:
- Oncology
- Molecular Diagnostics
- Genomics
Background:
- Current breast cancer classification relies on immunohistochemistry.
- Technological advancements enable circulating tumor DNA (ctDNA) detection.
- ctDNA analysis presents novel opportunities for breast cancer management.
Purpose of the Study:
- To explore the utility of ctDNA in breast cancer diagnosis and classification.
- To investigate ctDNA's role in monitoring disease heterogeneity and evolution.
- To assess ctDNA's potential in treatment selection and predicting outcomes.
Main Methods:
- Detection of circulating tumor DNA (ctDNA) in breast cancer patients.
- Analysis of ctDNA levels in relation to disease stage and treatment response.
- Monitoring ctDNA for resistance mutations and disease recurrence.
Main Results:
- ctDNA accurately reflects breast cancer heterogeneity.
- ctDNA clearance in early-stage disease correlates with better treatment response and reduced recurrence.
- ctDNA aids in treatment sequencing for metastatic breast cancer.
Conclusions:
- ctDNA analysis is a valuable tool for breast cancer management, from early detection to advanced disease.
- Future advancements in bioinformatics and liquid biopsy techniques will increase ctDNA's clinical utility.
- Deep learning may further enhance prediction of breast cancer evolution and treatment sensitivity using ctDNA.
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