Wednesday, June 15, 2011

Broccoli Extract can Selectively Target Cancer Cells

The safety, and cancer-targeting ability of the broccoli extract sulforaphane, has been backed by a new study finding that it can selectively target cancer cells.

The research, published in Molecular Nutrition and Food Research, reports for the first time that sulforaphane – one of the primary phytochemicals in broccoli and other cruciferous vegetables – is able to selectively target and kill cancer cells, while leaving normal cells healthy and unaffected.

“It is well documented that sulforaphane can target cancer cells through multiple chemopreventive mechanisms," said the authors, led by Dr Emily Ho, associate professor at the Linus Pauling Institute at Oregon State University, USA.

“Here we show for the first time that sulforaphane selectively targets benign hyperplasia cells and cancerous prostate cells while leaving the normal prostate cells unaffected,” they added.

The tissue of cruciferous vegetables, such as broccoli, cauliflower, and cabbage, contain high levels of the plant chemicals glucosinolates. These are metabolized by the body into isothiocyanates (such as sulforaphane), which have been suggested to be powerful anti-cancer agents.

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