Single-vesicle estimation of ATP-binding cassette transporters in microfluidic channels.

Sasaki, Hirotaka; Kawano, Ryuji; Osaki, Toshihisa; Kamiya, Koki; Takeuchi, Shoji · Lab Chip · 2012

basic_science · Level V

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Abstract

We have developed a method to analyze the substrate transport of ATP-binding cassette (ABC) transporters, which are associated with drug resistance in tumor cells. Our microfluidic method is well suited to the single-vesicle estimation of substrate transport and the rapid drug screening of ABC transporters. Using this method, we have demonstrated, for the first time, the analysis of substrate transport by a single transporter and performed drug-inhibition experiments in less than 3 h.

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