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New strategy rapidly identifies cancer targets

s. "If you try to sift through DNA, it takes almost a year," said Druker. "This technique takes a couple of months and further automation would make it even quicker."

So quick, in fact, that Druker envisions the technique as a method to help choose which drug a patient's cancer will respond to ?a critical step in achieving personalized medicine. Four cancer drugs that inhibit tyrosine kinases are already on the market, including Gleevec, which Druker pioneered for treatment of chronic myelogenous leukemia. Since its approval in 2001, Gleevec has made CML a much more manageable disease.

A new drug to inhibit JAK3 is already in development elsewhere, and, eventually, Druker sees a market filled with a dozen or more tyrosine kinase inhibitors. Matching the patient to the right drug will then simply be a matter of running their cancer cells through a future version of their new technique. Druker is already testing the idea. "Now we know to add JAK3 to the mutations we screen for in our leukemia patients and should look to see if JAK3 mutations are present in other cancers," he said.


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Source:Howard Hughes Medical Institute


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