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Updated: Jun 28, 2025
Adaptation of Semiautomated Circulating Tumor Cell CTC Assays for Clinical and Preclinical Research Applications
Published on: February 28, 2014
Digital Circulating Tumor Cells Quantification
Jidong Wang1, Xiaolei Liu2, Jiang Li3
1Medical Research Center, Huazhong University of Science and Technology Union Shenzhen Hospital, the Sixth Affiliated Hospital, Shenzhen University Medical School, Shenzhen University, Shenzhen 518052, People's Republic of China.
This study introduces a digital assay for quantifying rare circulating tumor cells (CTCs) in blood without enrichment. The method achieves high sensitivity, aiding cancer management.
Area of Science:
- Biomarkers
- Microfluidics
- Cancer Diagnostics
Background:
- Circulating tumor cells (CTCs) are crucial biomarkers in cancer management.
- Accurate quantification of rare CTCs presents a significant challenge.
Purpose of the Study:
- To develop a digital strategy for direct CTC quantification using partitioning.
- To establish a sensitive and specific method for CTC detection in blood.
Main Methods:
- Utilized droplet microfluidics to generate numerous parallel reactors.
- Applied Poisson distribution for direct CTC quantification without enrichment.
- Developed a digital CTC detection assay with a limit of detection of 5 cells/5 mL whole blood.
Main Results:
- Achieved direct quantification of CTCs in blood.
- Demonstrated high sensitivity and specificity in detecting CTCs from NSCLC patients (AUC = 1).
- Simultaneously detected multiple genetic mutations for enhanced accuracy.
Conclusions:
- The digital CTC quantification platform offers a novel approach for cancer biomarker analysis.
- This method has the potential to advance cancer medical management through precise CTC enumeration.
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