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Grape seed extract kills prostate cancer cells

06 December, 2013

ISLAMABAD: A new study by Indian origin researcher has revealed that the synthesis of the most active component of grape seed extract, B2G2, encourages 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," Alpna Tyagi, PhD, of the University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, said.

Previous studies have shown the GSE effectiveness against cancer cells and have also shown its mechanism of action. However, Tyagi said that until recently, they 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.

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.

The current study reported the success of this effort, including the ability to synthesize gram-quantity of B2G2 reasonably quickly and inexpensively.

The study also showed anti-cancer activity of synthesized B2G2 similar in mechanism and degree to overall GSE effectiveness.

The study was published in the journal Nutrition and Cancer.

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