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Updated: May 30, 2026

Clinical Microfluidic Chip Platform for the Isolation of Versatile Circulating Tumor Cells

Clinical Microfluidic Chip Platform for the Isolation of Versatile Circulating Tumor Cells

Published on: October 13, 2023

Microchip-based immunomagnetic detection of circulating tumor cells.

Kazunori Hoshino¹, Yu-Yen Huang, Nancy Lane

¹The University of Texas at Austin, Department of Biomedical Engineering, Austin, TX 78712-0238, USA. hoshino@mail.utexas.edu

|August 25, 2011

Summary

This summary is machine-generated.

This study introduces a novel microchip method for detecting circulating tumor cells (CTCs) in blood. The new technique offers faster, more efficient cancer cell screening with fewer magnetic particles compared to existing systems.

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Capture and Release of Viable Circulating Tumor Cells from Blood

Capture and Release of Viable Circulating Tumor Cells from Blood

Published on: October 28, 2016

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Last Updated: May 30, 2026

Clinical Microfluidic Chip Platform for the Isolation of Versatile Circulating Tumor Cells

Clinical Microfluidic Chip Platform for the Isolation of Versatile Circulating Tumor Cells

Published on: October 13, 2023

Microfluidics-based High-throughput Circulating Tumor Cell Sorting and Single-cell Sequencing Technology

Microfluidics-based High-throughput Circulating Tumor Cell Sorting and Single-cell Sequencing Technology

Published on: November 14, 2025

Capture and Release of Viable Circulating Tumor Cells from Blood

Capture and Release of Viable Circulating Tumor Cells from Blood

Published on: October 28, 2016

Area of Science:

Biomedical Engineering
Oncology
Nanotechnology

Background:

Screening for circulating tumor cells (CTCs) is crucial for cancer monitoring, including disease progression, activity, molecular changes, and early diagnosis.
Current methods for CTC detection face limitations in speed, efficiency, and the amount of reagents required.

Purpose of the Study:

To develop and evaluate a new microchip-based immunomagnetic assay for enhanced detection of circulating tumor cells (CTCs).
To combine the advantages of immunomagnetic assays and microfluidic devices for improved CTC capture and analysis.

Main Methods:

A polydimethylsiloxane (PDMS)-based microchannel device was designed for immunomagnetic separation of CTCs.
Cancer cells were labeled with magnetic nanoparticles conjugated to anti-epithelial cell adhesion molecule (EpCAM) antibodies.
Blood samples were analyzed using a microchip with arrayed magnets to capture labeled CTCs, followed by fluorescence microscopy and computer-aided analysis.

Main Results:

The microchip assay demonstrated effective capture of cancer cells, achieving 90% and 86% capture rates for COLO205 and SKBR3 cell lines, respectively.
The method successfully detected rare cancer cells at concentrations as low as 5 cells per mL, with tumor cell to blood cell ratios down to 1:10^9.
Compared to the CellSearch™ system, the new assay requires 25% fewer magnetic particles and is over five times faster.

Conclusions:

The developed microchip-based immunomagnetic assay provides a highly sensitive, rapid, and efficient method for detecting circulating tumor cells (CTCs).
This technology holds significant potential for improving cancer diagnosis, monitoring disease progression, and understanding tumor evolution.