Abstract
Methyl 2-cyano-3,11-dioxo-18β-olean-1,12-dien-30-oate (CDODA-Me) is a synthetic derivative of glycyrrhetinic acid, a triterpenoid phytochemical found in licorice extracts. CDODA-Me inhibited growth of RKO and SW480 colon cancer cells and this was accompanied by decreased expression of Sp1, Sp3 and Sp4 protein and mRNA and several Sp-dependent genes including survivin, vascular endothelial growth factor (VEGF), and VEGF receptor 1 (VEGFR1 or Flt-1). CDODA-Me also induced apoptosis, arrested RKO and SW480 cells at G 2/M, and inhibited tumor growth in athymic nude mice bearing RKO cells as xenografts. CDODA-Me decreased expression of microRNA-27a (miR-27a), and this was accompanied by increased expression of 2 miR-27a-regulated mRNAs, namely ZBTB10 (an Sp repressor) and Myt-1 which catalyzes phosphorylation of cdc2 to inhibit progression of cells through G2/M. Both CDODA-Me and antisense miR-27a induced comparable responses in RKO and SW480 cells, suggesting that the potent anticarcinogenic activity of CDODA-Me is due to repression of oncogenic miR-27a.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1965-1974 |
| Number of pages | 10 |
| Journal | International Journal of Cancer |
| Volume | 125 |
| Issue number | 8 |
| DOIs | |
| State | Published - Oct 15 2009 |
Keywords
- Anticarcinogenicity
- CDODA-Me
- Cell cycle
- Colon cancer
- miR-27a
ASJC Scopus subject areas
- Oncology
- Cancer Research
Divisions
- Medical Oncology
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