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Human Immune System Assassin's Tricks Visualized for the First Time

Scientists from the UK and Australia have seen the human immune system's assassin -- a protein called perforin -- in action for the first time. The UK team is based at Birkbeck College where they used powerful electron microscopes to study the mechanism that perforin uses to punch holes in rogue cells.

The research is published on October 31 in Nature.

Professor Helen Saibil, who leads the UK team at Birkbeck College, said: "Perforin is a powerful bullet in the arsenal of our immune system -- without it we could not deal with the thousands of rogue cells that turn up in our bodies through our lives."

"Perforin is our body's weapon of cleansing and death," said project leader Professor James Whisstock from Monash University, Melbourne, Australia.

Perforin works by punching holes in cells that have become cancerous or have been invaded by viruses. The holes let toxic enzymes in


Added: Nov-1-2010 
By: jumpingforJoyz
Tags: Human, Immune, System, Assassin's, Tricks, Visualized, for, the, First, Time
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