intellitech writes "Researchers led by ETH professor Yaakov Benenson and MIT professor Ron Weiss have successfully incorporated diagnostic biological information processing in human cells. In a study recently published in Science (abstract), they describe a multi-gene synthetic 'logic circuit' whose task is to distinguish between cancer and healthy cells, and subsequently target cancer cells for destruction. This circuit works by sampling and integrating five intracellular, cancer-specific molecular factors and their concentration. The circuit makes a positive identification only when all factors are present in the cell, resulting in highly precise cancer detection. Researchers hope it can serve a basis for very specific anti-cancer treatments."
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