Suppression of human pancreatic carcinoma cell growth and invasion by epigallocatechin-3-gallate.

Abstract:

INTRODUCTION:The consumption of green tea is associated with a lower risk of several types of human carcinomas. A number of studies have focused on the possible mechanisms of cancer prevention by tea extracts, especially polyphenols such as epigallocatechin-3-gallate (EGCG). AIMS AND METHODOLOGY:Green tea-derived EGCG was tested in human pancreatic carcinoma cells. The cells (PANC-1, MIA PaCa-2, and BxPC-3) were treated with different doses of EGCG (0, 25, 50, 100, and 200 micromol/L) for 48 hours in culture medium. Proliferation of pancreatic carcinoma cells was measured by means of the WST-1 colorimetric assay. For the study of cell invasion, the cells were incubated with 100 micromol/L EGCG for 2 hours. Then, the cells were added into the cell insert, coated with Matrigel basement membrane matrix. After incubation at 37 degrees C for 24 hours, the cells that had invaded through the Matrigel were counted visually under the microscope. RESULTS:The growth of all three pancreatic carcinoma cells was significantly suppressed by EGCG treatment in a dose-dependent manner. EGCG treatment caused significant suppression of the invasive ability of pancreatic carcinoma cells PANC-1, MIA PaCa-2, and BxPC-3 but did not affect the cell cycle protein cyclin D1. CONCLUSION:EGCG may be a potent biologic inhibitor of human pancreatic carcinomas, reducing their proliferative and invasive activities.

journal_name

Pancreas

journal_title

Pancreas

authors

Takada M,Nakamura Y,Koizumi T,Toyama H,Kamigaki T,Suzuki Y,Takeyama Y,Kuroda Y

doi

10.1097/00006676-200207000-00012

subject

Has Abstract

pub_date

2002-07-01 00:00:00

pages

45-8

issue

1

eissn

0885-3177

issn

1536-4828

pii

00006676-200207000-00012

journal_volume

25

pub_type

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