The Telegraph
Since 1st March, 1999
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Immobile menace
- Tea extracts arrest movement of cancer cells
benefits of the olive drink
1 Green tea is less processed than black tea and contains rich sources of antioxidants which protect the body’s cells from damage. The steaming process maintains more of its pharmacological properties. It burns calories and speeds up body metabolism.

2 The antioxidants in green tea decrease the risk of blood clots, blood pressure, blood sugar and bad cholesterol, and so provide protection against cardiovascular diseases. They also help reduce the severity of rheumatoid arthritis, cataract and esophageal cancer.

3 Catechin, present in green tea, removes sleepiness and works as a stress-buster. The drink has got a diuretic effect and prevents rashes, indigestion and the disease called beriberi. Green tea chemicals destroy harmful microbes only.

4 It checks dental decay by inhibiting the growth of oral bacteria, and so fights cavities. When used as a mouth rinse, this herbal drink reduces plaque formation.

Sipping a cup of green tea, the traditional Chinese herbal energy booster, can help prevent cancer. A new study, published in the Clinical Cancer Research, reveals more about how green tea works to curb the development of bladder cancer. Green tea extract, processed from the leaves of the tea plant, Camellia sinensis, inhibits the growth and proliferation of cancerous cells, the study claims.

Raising the hope of finding new ways to fight bladder cancer, resear-chers at the University of California Los Angeles (UCLA), say, 'In effect, the green tea extract keeps the cancer cells confined and localised, where they are easier to treat.'

The study helped the scientists to show for the first time that green tea interrupted a process crucial in allowing bladder cancer to become invasive and spread to other organs. It also proved that green tea was able to target cancer cells, while leaving healthy cells alone.

The cell movement depends on a bio-chemical process called actin remodelling. When it's activated, the cancer cells move and invade other healthy cells. Green tea extract affects actin remodelling. 'This makes the cancer cells more mature and closely bonded, and this obstructs their mobility,' says JianYu Rao, the study's senior author.

'Now we will be looking for specific biomarkers associated with actin remodelling and activation of its signaling pathway to figure out more precisely which patients may benefit from having green tea,' adds Rao.

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