Abstract
Caffeic acid phenethyl ester (CAPE) derived from honeybee propolis has been used as a folk medicine and has several proven biological activities. The present study investigated the effect of CAPE on angiogenesis, tumor invasion, and metastasis. A cytotoxicity assay of CAPE in CT26 colon adenocarcinoma cells showed a dose-dependent decrease in cell viability but no significant influence on the growth of human umbilical vein epithelial cells (HUVEC). A low concentration of CAPE (1,5 μg/mL) inhibited 52.7% of capillary-like tube formation in HUVEC culture on Matrigel. CAPE (6 μg/mL)-treated CT26 cells showed not only inhibited cell invasion by 47.8% but also decreased expression of matrix metalloproteinase (MMP)-2 and -9. Vascular endothelial growth factor (VEGF) production from CT26 cells was also inhibited by treatment with CAPE (6 μg/mL). Intraperitoneal injection of CAPE (10 mg/kg/day) in BALB/c mice reduced the pulmonary metastatic capacity of CT26 cells accompanied with a decreased plasma VEGF level. CAPE treatment also prolonged the survival of mice implanted with CT26 cells. These results indicate that CAPE has potential as an antimetastatic agent.
Original language | English |
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Pages (from-to) | 7907-7912 |
Number of pages | 6 |
Journal | Journal of Agricultural and Food Chemistry |
Volume | 51 |
Issue number | 27 |
DOIs | |
State | Published - 31 12 2003 |
Externally published | Yes |
Keywords
- Angiogenesis
- CAPE (caffeic acid phenethyl ester)
- Human umbilical vein endothelial cell
- Matrix metalloproteinase
- Metastasis
- Tumor invasion
- Vascular endothelial growth factor