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Potential anti-cancer effects of virgin olive oil phenols on colorectal carcinogenesis models in vitro.
- Source :
-
International journal of cancer [Int J Cancer] 2005 Oct 20; Vol. 117 (1), pp. 1-7. - Publication Year :
- 2005
-
Abstract
- The traditional Mediterranean diet is thought to represent a healthy lifestyle; especially given the incidence of several cancers including colorectal cancer is lower in Mediterranean countries compared to Northern Europe. Olive oil, a central component of the Mediterranean diet, is believed to beneficially affect numerous biological processes. We used phenols extracted from virgin olive oil on a series of in vitro systems that model important stages of colon carcinogenesis. The effect the extract on DNA damage induced by hydrogen peroxide was measured in HT29 cells using single cell microgel-electrophoresis. A significant anti-genotoxic linear trend (p=0.011) was observed when HT29 cells were pre-incubated with olive oil phenols (0, 5, 10, 25, 50, 75, 100 microg/ml) for 24 hr, then challenged with hydrogen peroxide. The olive oil phenols (50, 100 microg/ml) significantly (p=0.004, p=0.002) improved barrier function of CACO2 cells after 48 hr as measured by trans-epithelial resistance. Significant inhibition of HT115 invasion (p<0.01) was observed at olive oil phenols concentrations of 25, 50, 75, 100 microg/ml using the matrigel invasion assay. No effect was observed on HT115 viability over the concentration range 0, 25, 50 75, 100 microg/ml after 24 hr, although 75 and 100 microg/ml olive oil phenols significantly inhibited HT115 cell attachment (p=0.011, p=0.006). Olive oil phenols had no significant effect on metastasis-related gene expression in HT115 cells. We have demonstrated that phenols extracted from virgin olive oil are capable of inhibiting several stages in colon carcinogenesis in vitro.<br /> (Copyright (c) 2005 Wiley-Liss, Inc.)
- Subjects :
- Cell Adhesion drug effects
Cell Cycle drug effects
Cell Survival drug effects
Collagen metabolism
Drug Combinations
Humans
Hydrogen Peroxide toxicity
In Vitro Techniques
Laminin metabolism
Neoplasm Invasiveness
Olive Oil
Phenols isolation & purification
Plant Oils chemistry
Proteoglycans metabolism
Tumor Cells, Cultured
Anticarcinogenic Agents therapeutic use
Colorectal Neoplasms prevention & control
DNA Damage drug effects
Phenols therapeutic use
Plant Oils therapeutic use
Subjects
Details
- Language :
- English
- ISSN :
- 0020-7136
- Volume :
- 117
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- International journal of cancer
- Publication Type :
- Academic Journal
- Accession number :
- 15880398
- Full Text :
- https://doi.org/10.1002/ijc.21083