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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Natural grape extracts regulate colon cancer cells malignancy.

Abstract Source:

Nutr Cancer. 2015 Apr ;67(3):494-503. Epub 2015 Feb 23. PMID: 25705818

Abstract Author(s):

Paola Signorelli, Carlotta Fabiani, Andrea Brizzolari, Rita Paroni, Josefina Casas, Gemma Fabriàs, Dario Rossi, Riccardo Ghidoni, Anna Caretti

Article Affiliation:

Paola Signorelli

Abstract:

Natural dietary components are evolutionary-selected molecules able to control inflammation and cancerous transformation and progression. Because many studies assessed the beneficial properties of key molecules extracted from grapes, we aimed at investigating the properties of Liofenol™, a natural red wine lyophilized extract, devoid of alcohol and composed by a miscellaneous of components (polyphenols, flavonoids, anthocyanins). We proved that the colon cancer cell line HCT116 responded to Liofenol™ treatment by reducing their proliferation, in association with an increase of p53 and p21 cell cycle gate keepers. Liofenol™ increased dihydroceramides, sphingolipid mediators involved in cell cycle arrest and reduced proliferation rate. We observed a strong induction of antioxidant response, with the activation of the transcriptional factor Nrf2, involved in redox homeostasis and differentiation, without altering tumor sensitivity to chemotherapy. Liofenol™ induced an important morphology change in HCT116 cells, migration inhibition, undifferentiated stem/stem-like cells markers downregulation, and E-cadherin downregulation, interested in epithelia to mesenchymalmalignant transition. We conclude that lyophilized grape extract, at dose comparable to putative dietary doses, can activate molecular pathways, involving Nrf2 signaling and the modulation of structural and signaling sphingolipid mediators that cooperate in promoting differentiation and reducing proliferation of digestive tract cancer cells.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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