Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get two FREE E-Books

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

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


Why You Don't See Ads on GreenMedInfo

Did you know that GreenMedInfo.com is is 100% member supported? It is through your membership that we are able to add research content daily, provide thoughtful articles on groundbreaking health & wellness topics, and continue to educate and empower people on the science supporting natural healing.

Our website has always offered open access to our carefully curated research (and always will) but we recently made the decision to become completely advertisement free.

In order for us to continue, we need your support more than ever. Our memberships start at only $8.00 per month and provide you with enhanced content & features.

We appreciate you supporting our mission and sharing our passion!

For more information on becoming a member of GreenMedInfo.com, click here.


Article Publish Status: FREE
Abstract Title:

Grape compounds suppress colon cancer stem cells in vitro and in a rodent model of colon carcinogenesis.

Abstract Source:

BMC Complement Altern Med. 2016 ;16:278. Epub 2016 Aug 9. PMID: 27506388

Abstract Author(s):

Lavanya Reddivari, Venkata Charepalli, Sridhar Radhakrishnan, Ramakrishna Vadde, Ryan J Elias, Joshua D Lambert, Jairam K P Vanamala

Article Affiliation:

Lavanya Reddivari

Abstract:

BACKGROUND: We have previously shown that the grape bioactive compound resveratrol (RSV) potentiates grape seed extract (GSE)-induced colon cancer cell apoptosis at physiologically relevant concentrations. However, RSV-GSE combination efficacy against colon cancer stem cells (CSCs), which play a key role in chemotherapy and radiation resistance, is not known.

METHODS: We tested the anti-cancer efficacy of the RSV-GSE against colon CSCs using isolated human colon CSCs in vitro and an azoxymethane-induced mouse model of colon carcinogenesis in vivo.

RESULTS: RSV-GSE suppressed tumor incidence similar to sulindac, without any gastrointestinal toxicity. Additionally, RSV-GSE treatment reduced the number of crypts containing cells with nuclearβ-catenin (an indicator of colon CSCs) via induction of apoptosis. In vitro, RSV-GSE suppressed - proliferation, sphere formation, nuclear translocation of β-catenin (a critical regulator of CSC proliferation) similar to sulindac in isolated human colon CSCs. RSV-GSE, but not sulindac, suppresseddownstream protein levels of Wnt/β-catenin pathway, c-Myc and cyclin D1. RSV-GSE also induced mitochondrial-mediated apoptosis in colon CSCs characterized by elevated p53, Bax/Bcl-2 ratio and cleaved PARP. Furthermore, shRNA-mediated knockdown of p53, a tumor suppressor gene, in colon CSCs did notalter efficacy of RSV-GSE.

CONCLUSION: The suppression of Wnt/β-catenin signaling and elevated mitochondrial-mediated apoptosis in colon CSCs support potential clinical testing/application of grape bioactives for colon cancer prevention and/or therapy.

Print Options


Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get two FREE E-Books

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

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

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2018 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.