Navigation Links
Active component of grape seed extract effective against cancer cells
Date:12/4/2013

A University of Colorado Cancer Center study published online ahead of print in the journal Nutrition and Cancer describes the laboratory synthesis of the most active component of grape seed extract, B2G2, and shows this synthesized compound induces the cell death known as apoptosis in prostate cancer cells while leaving healthy cells unharmed.

"We've shown similar anti-cancer activity in the past with grape seed extract (GSE), but now we know B2G2 is its most biologically active ingredient which can be synthesized in quantities that will allow us to study the detailed death mechanism in cancer cells," says Alpna Tyagi, PhD, of the University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences. Tyagi works in the lab of CU Cancer Center investigator and Skaggs School of Pharmacy faculty member, Chapla Agarwal, PhD.

The group has spent more than a decade demonstrating the anti-cancer activity of GSE in controlled, laboratory conditions. For example, previous studies have shown the GSE effectiveness against cancer cells and have also shown its mechanism of action. "But until recently, we didn't know which constituent of GSE created this effect. This naturally occurring compound, GSE, is a complex mixture of polyphenols and also so far it has been unclear about the biologically active constituents of GSE against cancer cells," Tyagi says.

Eventually the group pinpointed B2G2 as the most active compound, but, "it's expensive and it takes a long time to isolate B2G2 from grape seed extract," Tyagi says.

This expense related to the isolation of B2G2 has limited the group's further exploration. So instead of purifying B2G2 from GSE, the group decided to synthesize it in the lab. The current study reports the success of this effort, including the ability to synthesize gram-quantity of B2G2 reasonably quickly and inexpensively.

In the paper's second half, the group shows anti-cancer activity of synthesized B2G2 similar in mechanism and degree to overall GSE effectiveness.

"Our goal all along has been a clinical trial of the biologically active compounds from GSE against human cancer. But it's difficult to earn FDA approval for a trial in which we don't know the mechanisms and possible effects of all active components. Therefore, isolating and synthesizing B2G2 is an important step because now we have the ability to conduct more experiments with the pure compound. Ongoing work in the lab further increases our understanding of B2G2′s mechanism of action that will help for the preclinical and clinical studies in the future," Tyagi says.


'/>"/>

Contact: Garth Sundem
garth.sundem@ucdenver.edu
University of Colorado Denver
Source:Eurekalert

Related medicine news :

1. 62 percent of men and 37 percent of women over the age of 65 are sexually active
2. Gene Signal presents data at ARVO 2012 showing topical aganirsen is active in retinal disease
3. Introducing Screenplay: An interactive childrens waiting room experience
4. Inherited DNA change explains overactive leukemia gene
5. Key to More Active, Slimmer Kids: Friends
6. New anti-inflammatory drugs pinch off reactive oxygen species at the source
7. Parents - not TV - may determine whether kids are active or couch potatoes
8. SingleSource Background Screening Company Calls On Adults To Take Proactive Approach To Stop Child Sexual Abuse
9. Active, Outdoor Teens Are Happier Teens: Study
10. Author, Speaker Richard London Battles Parkinson’s with an Active Lifestyle and the Desire to Give Back
11. Friends Life Care, a Pennsylvania Based Long-Term Care Provider, Launches VigR eMeetinghouse — An Interactive Online Community
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/7/2016)... ... 07, 2016 , ... “The Road To Restoration”: an informative and enlightening ... hour a week showing of hands. “The Road To Restoration” is the creation of ... familiar with the brass ring that you could reach out for, and grab, on ...
(Date:12/7/2016)... ... 07, 2016 , ... “Fred Rides a Train” allows readers to tag along ... “Fred Rides a Train” is the creation of published author, Janet Morrison, who has ... in Michigan. The "Fred, the Dog" series is her first attempt at writing for ...
(Date:12/7/2016)... WI (PRWEB) , ... December 07, 2016 , ... ... Labs, was honored to present at the International Probiotic Association’s Washington DC workshop ... and government regulators to engage in dialog regarding probiotic dietary supplement regulations. ...
(Date:12/6/2016)... ... December 06, 2016 , ... People ... can be seen on a type of MRI, according to a study appearing ... of the central nervous system characterized by tremors or trembling and stiffness in ...
(Date:12/6/2016)... ... December 06, 2016 , ... Individuals who seek to reduce ... drinking more water or limiting their exposure to the sun, according to a November ... group Beverly Hills Physicians (BHP) notes that, while preventive measures to help keep ourselves ...
Breaking Medicine News(10 mins):
(Date:12/7/2016)... , Dec. 7, 2016  Varian Medical Systems (NYSE: ... its previously announced plans to separate its Imaging Components ... a tax-free distribution to Varian stockholders of common stock ... that will hold the Imaging Components business.  As part ... executed by the end of January 2017, Varian will ...
(Date:12/7/2016)... , Dec. 7, 2016 Boehringer ... trial in patients with unresectable malignant pleural mesothelioma ... (PFS). The data, presented at the 17 th ... Vienna , showed nintedanib plus ... placebo plus pemetrexed/cisplatin, with a significantly improved PFS ...
(Date:12/7/2016)... , Dec. 7, 2016  Organovo Holdings, Inc. ... biology company focused on delivering scientific and medical ... that Chairman and Chief Executive Officer Keith ... on Wednesday, December 14, 2016 at 1:00 p.m. ... are not yet familiar with the Company, an ...
Breaking Medicine Technology: