6533b821fe1ef96bd127c27b
RESEARCH PRODUCT
Antiproliferative activity of green, black tea and olive leaves polyphenols subjected to biosorption and in vitro gastrointestinal digestion in Caco-2 cells.
Hanène JilaniHanène JilaniMoktar HamdiAntonio CillaReyes Barberásubject
030309 nutrition & dieteticsCell SurvivalSaccharomyces cerevisiaeBiological AvailabilityApoptosisSaccharomyces cerevisiaeCamellia sinensis03 medical and health sciences0404 agricultural biotechnologyOleaHumansCamellia sinensisViability assayFood scienceCell Proliferation0303 health sciencesbiologyTeaChemistryCell CycleBiosorptionfood and beveragesPolyphenols04 agricultural and veterinary sciencesbiology.organism_classification040401 food scienceIn vitroPlant LeavesCaco-2PolyphenolOleaDigestionCaco-2 CellsFood Sciencedescription
Olive (Olea europaea L.) leaves and tea (Camellia sinensis) are rich sources of bioactive compounds, especially polyphenols. Our previous studies have evidenced the potential use of Saccharomyces cerevisiae as a natural delivery system for these antioxidants and a means to improve their bioaccessibility in the human gut. In the present work, the antiproliferative effect of green tea (GT), black tea (BT) and olive leaves (OL) infusions and suspensions of S. cerevisiae were evaluated, for the first time, in human colon cancer cells (Caco-2) after biosorption and in vitro gastrointestinal digestion. The bioaccessible fractions (BF) were not overtly cytotoxic, not affecting cell viability. ROS and mitochondrial membrane potential changes (Δψm) values were reduced compared with control cells. Moreover, all the BF after biosorption induced a significant (p 0.05) increase in cell proportions in S-phase. The arrest of the cell cycle was reversible without induction of apoptosis, suggesting that the biosorbed phenolics in both infusions and suspensions act as cytostatic agents.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-10-01 | Food research international (Ottawa, Ont.) |