RT Journal Article SR Electronic T1 (-)-Menthol Inhibits DNA Topoisomerases I, II α and β and Promotes NF-Î B expression in Human Gastric Cancer SNU-5 Cells JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 2069 OP 2074 VO 25 IS 3B A1 LIN, JING-PIN A1 LU, HSU-FENG A1 LEE, JAU-HONG A1 LIN, JAUNG-GUNG A1 HSIA, TE-CHUN A1 WU, LII-TZU A1 CHUNG, JING-GUNG YR 2005 UL http://ar.iiarjournals.org/content/25/3B/2069.abstract AB It has been reported that (-)-Menthol can inhibit the growth of rat liver epithelial tumor cells and is a potent chemopreventive agent. The purpose of the present experiment was to examine and identify cellular processes leading to cell death which are affected by (-)-Menthol in human gastric SNU-5 cancer cells. Cell death (cytotoxicity) was examined and analyzed by trypan blue stain and flow cytometric methods. It was shown that (-)-Menthol inhibited the proliferation of the cells in a dose- and time-dependent manner, inhibited topoisomerase I, IIα and IIβ, but promoted the levels of NF-Î B gene expression based on the Western blot and polymerase chain reaction (PCR) and cDNA microarray methods. These data suggest that (-)-Menthol may induce cytotoxicity through inhibiting gene expression of topoisomerase I, IIα and IIβ and promoting the gene expression of NF-Î B in SNU-5 cells. Copyright© 2005 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved