Quantitative comparison of cancer and normal cell adhesion using organosilane monolayer templates: an experimental study on the anti-adhesion effect of green-tea catechins

Rumi Sakamoto, Eisuke Kakinuma, Kentaro Masuda, Yuko Takeuchi, Kosaku Ito, Kentaro Iketaki, Takahisa Matsuzaki, Seiichiro Nakabayashi, Hiroshi Y. Yoshikawa, Hideaki Yamamoto, Yuko Sato, Takashi Tanii

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The main constituent of green tea, (−)-Epigallocatechin-3-O-gallate (EGCG), is known to have cancer-specific chemopreventive effects. In the present work, we investigated how EGCG suppresses cell adhesion by comparing the adhesion of human pancreatic cancer cells (AsPC-1 and BxPC-3) and their counterpart, normal human embryonic pancreas-derived cells (1C3D3), in catechin-containing media using organosilane monolayer templates (OMTs). The purpose of this work is (1) to evaluate the quantitativeness in the measurement of cell adhesion with the OMT and (2) to show how green-tea catechins suppress cell adhesion in a cancer-specific manner. For the first purpose, the adhesion of cancer and normal cells was compared using the OMT. The cell adhesion in different type of catechins such as EGCG, (−)-Epicatechin-3-O-gallate (ECG) and (−)-Epicatechin (EC) was also evaluated. The measurements revealed that the anti-adhesion effect of green-tea catechins is cancer-specific, and the order is EGCG≫ECG>EC. The results agree well with the data reported to date, showing the quantitativeness of the new method. For the second purpose, the contact area of cells on the OMT was measured by reflection interference contrast microscopy. The cell-OMT contact area of cancer cells decreases with increasing EGCG concentration, whereas that of normal cells remains constant. The results reveal a twofold action of EGCG on cancer cell adhesion—suppressing cell attachment to a candidate adhesion site and decreasing the contact area of the cells—and validates the use of OMT as a tool for screening cancer cell adhesion.

本文言語English
ページ(範囲)799-805
ページ数7
ジャーナルIn Vitro Cellular and Developmental Biology - Animal
52
8
DOI
出版ステータスPublished - 2016 9 1

ASJC Scopus subject areas

  • 発生生物学
  • 細胞生物学

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