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Characterizing Circulating Tumor Cells Isolated from Metastatic Breast Cancer Patients Using Graphene Oxide Based
Tae Hyun Kim1,2,3,4, Hyeun Joong Yoon1,3,4,5, Shamileh Fouladdel3,4,6
1Department of Chemical Engineering, University of Michigan, 2300 Hayward Street, Ann Arbor, MI, 48109, USA.
Advanced Biosystems
|July 7, 2020
Summary
Characterizing circulating tumor cells (CTCs) in metastatic breast cancer patients provides deeper insights than simple counting. This advanced analysis using a graphene oxide assay correlates CTC profiles with patient outcomes, aiding treatment decisions.
Area of Science:
- Oncology
- Biotechnology
- Medical Diagnostics
Background:
- Enumeration of circulating tumor cells (CTCs) is prognostically significant in breast cancer.
- CTCs exhibit heterogeneity, suggesting diverse functional properties that may impact clinical relevance.
- Comprehensive CTC analysis is needed for a complete understanding of patient disease status.
Purpose of the Study:
- To develop and validate a sensitive graphene oxide-based assay for isolating and characterizing CTCs.
- To investigate the correlation between CTC profiles and clinical outcomes in metastatic breast cancer patients.
- To demonstrate the potential of CTC characterization in improving diagnosis and treatment decisions.
Main Methods:
- Utilized a highly sensitive and reproducible graphene oxide-based assay.
- Isolated and characterized CTCs from 47 metastatic breast cancer patients using a few milliliters of blood.
- Performed enumeration and subsequent protein and transcription level analysis of captured CTCs.
Main Results:
- Achieved high purity CTC capture with the developed assay.
- Demonstrated a correlation between patient clinical outcomes and the associated CTC profile.
- Validated the assay's potential for clinical application and broadening liquid biopsy utility.
Conclusions:
- CTC characterization offers more valuable information than simple enumeration for diagnosing breast cancer disease status.
- The validated graphene oxide CTC assay shows significant potential for clinical translation and improved patient treatment.
- This study facilitates the integration of CTC analysis into clinical practice for enhanced breast cancer management.
