High-Throughput Manipulation of Circulating Tumor Cells Using a Multiple Single-Cell Encapsulation System with a Digital Micromirror Device

Ryo Negishi, Kaori Takai, Tsuyoshi Tanaka, Tadashi Matsunaga, Tomoko Yoshino

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Circulating tumor cells (CTCs) are potential precursors of metastatic cancer, and genomic information obtained from CTCs have the potential to provide new insights into the biology of cancer metastasis. We previously developed a technique for single-cell manipulation based on the encapsulation of a single cell in a photopolymerized hydrogel that can be used for subsequent genetic analysis. However, this technique has limitations in terms of throughput because light irradiation must be performed on each individual cell from the confocal laser-scanning microscopy. Here, we present a high-throughput cell manipulation technique using a multiple single-cell encapsulation system with a digital micromirror device. This system enables rapid cell imaging within a microcavity array, a microfilter for the recovery of CTCs from blood samples, as well as the simultaneous encapsulation of several CTCs with hydrogels photopolymerized using a multiple light-irradiation system. Furthermore, single-cell labeling using two differently shaped hydrogels was examined to distinguish between NCI-H1975 cells and A549 cells, demonstrating the utility of the system for single-cell gene mutation analysis. In addition to CTCs, our system can be widely applied for analyses of mammalian cells and microorganisms.

Original languageEnglish
Pages (from-to)9734-9741
Number of pages8
JournalAnalytical Chemistry
Volume90
Issue number16
DOIs
Publication statusPublished - 2018 Aug 21
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry

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