Development of cell-based quantitative evaluation method for cell cycle-arrest type cancer drugs for apoptosis by high precision surface plasmon resonance sensor

Toshihiro Ona, Hiroshi Nishijima, Atsushi Kosaihira, Junko Shibata

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

In vitro rapid and quantitative cell-based assay is demanded to verify the efficacy prediction of cancer drugs since a cancer patient may have unconventional aspects of tumor development. Here, we show the rapid and non-label quantitative verifying method and instrumentation of apoptosis for cell cycle-arrest type cancer drugs (Roscovitine and D-allose) by reaction analysis of living liver cancer cells cultured on a sensor chip with a newly developed high precision (50 ndeg s-1 average fluctuation) surface plasmon resonance (SPR) sensor. The time-course cell reaction as the SPR angle change rate for 10 min from 30 min cell culture with a drug was significantly related to cell viability. By the simultaneous detection of differential SPR angle change and fluorescence by specific probes using the new instrument, the SPR angle was related to the nano-order potential decrease in inner mitochondrial membrane potential. The results obtained are universally valid for the cell cycle-arrest type cancer drugs, which mediate apoptosis through different cell-signaling pathways, by a liver cancer cell line of Hep G2 (P≤0.001). This system towards the application to evaluate personal therapeutic potentials of drugs using cancer cells from patients in clinical use.

本文言語英語
ホスト出版物のタイトルBiophotonics
ホスト出版物のサブタイトルPhotonic Solutions for Better Health Care
6991
DOI
出版ステータス出版済み - 6 18 2008
イベントBiophotonics: Photonic Solutions for Better Health Care - Strasbourg, フランス
継続期間: 4 8 20084 10 2008

その他

その他Biophotonics: Photonic Solutions for Better Health Care
Countryフランス
CityStrasbourg
Period4/8/084/10/08

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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