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Circulating Tumor Cells as the Liquid Biopsy Foray into Noninvasive Colorectal Cancer Screening
Mario I Vega1,2, Sandrine Billet1,2, Alessio Pigazzi1
1Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
Summary
Combining fecal immunochemical tests (FIT) with circulating tumor cell (CTC) enumeration shows promise for improved colorectal cancer screening. This novel approach may enhance early detection and risk prediction for colorectal neoplasia.
Area of Science:
- Oncology
- Gastroenterology
- Biomarkers
Background:
- Noninvasive screening for colorectal cancer (CRC) is crucial for early detection.
- Fecal immunochemical tests (FIT) are established but have diagnostic limitations.
- Emerging liquid biopsy technologies offer new avenues for cancer detection.
Purpose of the Study:
- To evaluate the combination of FIT and circulating tumor cell (CTC) enumeration for colorectal cancer screening.
- To assess the predictive performance of this combined approach for colorectal neoplasia and CRC risk.
- To contextualize this combination within the evolving landscape of CRC screening methods.
Main Methods:
- Analysis of a study combining FIT with CTC enumeration.
- Assessment of feasibility and performance metrics for predicting colorectal neoplasia.
- Review of existing stool- and blood-based CRC screening technologies.
Main Results:
- The combination of FIT and CTC enumeration demonstrated potential as a novel CRC screening technique.
- This approach may improve the prediction of colorectal neoplasia and CRC risk.
- The study by Nguyen and colleagues provides key data on this combined method.
Conclusions:
- Combining FIT with CTC enumeration represents a promising advancement in colorectal cancer screening.
- Liquid biopsy technologies, including CTCs, are timely additions to the CRC screening toolkit.
- Further research and validation are warranted for this multitarget screening approach.
