Open AccessPerformance evaluation of a high‐throughput separation system for circulating tumor cells based on microcavity array
Author(s) -
Negishi Ryo,
Saito Hyuga,
Iwata Reito,
Tanaka Tsuyoshi,
Yoshino Tomoko
Publication year - 2020
Publication title -
engineering in life sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.547
H-Index - 57
eISSN - 1618-2863
pISSN - 1618-0240
DOI - 10.1002/elsc.202000024
Subject(s) - circulating tumor cell , single cell analysis , cell encapsulation , encapsulation (networking) , cell , high resolution , microfluidics , computer science , nanotechnology , materials science , biology , cancer , genetics , geology , computer network , remote sensing , metastasis
Circulating tumor cells (CTCs) are widely known as useful biomarkers in the liquid biopsies of cancer patients. Although single‐cell genetic analysis of CTCs is a promising diagnostic tool that can provide detailed clinical information for precision medicine, the capacity of single‐CTC isolation for genetic analysis requires improvement. To overcome this problem, we previously developed a multiple single‐cell encapsulation system for CTCs using hydrogel‐encapsulation, which allowed for the high‐throughput isolation of single CTCs. However, isolation of a single cell from adjacent cells remained difficult and often resulted in contamination by neighboring cells due to the limited resolution of the generated hydrogel. We developed a novel multiple single‐cell encapsulation system equipped with a high magnification lens for high throughput and a more accurate single‐cell encapsulation. The multiple single‐cell encapsulation system has sufficient sensitivity to detect immune‐stained CTCs, and could also generate a micro‐scaled hydrogel that can isolate a single cell from adjacent cells within 10 µm, with high efficiency. The proposed system enables high throughput and accurate single‐cell manipulation and genome amplification without contamination from neighboring cells.