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By MIT Technology Review - Liquid Biopsy
jeff
8/12/2014
6:09:06 PM

Spotting Cancer in a Vial of Blood:
http://www.technologyreview.com/featuredstory/529911/spotting-cancer-in-a-vial-of-blood/


--quote:
"The answers Bert Vogelstein needed and feared were in the blood sample.

Vogelstein is among the most highly cited scientists in the world. He was described, in the 1980s, as having broken into "the cockpit of cancer" after he and coworkers at Johns Hopkins University showed for the first time exactly how a series of DNA mutations, adding up silently over decades, turn cells cancerous. Damaged DNA, he helped prove, is the cause of cancer.

Now imagine you could see these mutations—see cancer itself—in a vial of blood. Nearly every type of cancer sheds DNA into the bloodstream, and Vogelstein’s laboratory at Johns ­Hopkins has developed a technique, called a "liquid biopsy," that can find the telltale genetic material.

The technology is made possible by instruments that speedily sequence DNA in a blood sample so researchers can spot tumor DNA even when it’s present in trace amounts. The ­Hopkins scientists, working alongside doctors who treat patients in Baltimore’s largest oncology center, have now studied blood from more than a thousand people. They say liquid biopsies can find cancer long before symptoms of the disease arise."
--end quote




-jp

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