Promising Method For Early Diagnosis Of Cancer.
A collaboration of US scientists and hidden companies are looking into a assess that could muster even one stray cancer stall among the billions of cells that circulate in the human bloodstream. The promise is that one day such a test, given soon after a treatment is started, could indicate whether the group therapy is working or not. It might even indicate beforehand which care would be most effective product. The test relies on circulating tumor cells (CTCs) - cancer cells that have isolated from the main tumor and are traveling to other parts of the body.
In 2007, researchers at Massachusetts General Hospital, developed a "microfluidic chip," called CellSearch, which could enumerate the enumerate of rove cancer cells, but that test didn't appropriate scientists to trap whole cells and analyze them. But on Monday, Mass General announced an pact with Veridex LLC, part company of Johnson & Johnson, to sanctum a newer version of the test.
According to the Associated Press, the updated prove requires only a couple of teaspoons of blood. The microchip is dotted with tens of thousands of puny posts covered with antibodies designed to put to tumor cells. As blood passes over the chip, tumor cells different from the pack and adhere to the posts.
Scientists are wagering that this personification of test, if successful, might also detect cancer prematurely in its course, predict the odds for a recurrence, and assess a patient's communal prognosis. "There has been speculation that these stray cells are the ones that are important for the spreading of the disease," noted one expert, Dr Massimo Cristofanilli, professor and chairman of medical oncology at Fox Chase Cancer Center in Philadelphia. "Simple enumeration tells us that this assiduous has a worse prognosis.
Now the quiz is, what other knowledge we can gather, if we are able to seize these cells? For example, could we do gene study profiling and can we get information for the best treatment?" As it stands today, biopsy - an invasive and occasionally even hazardous procedure - is one of the few ways doctors can get clue information about a cancer's scope and characteristics. "Many people consider the new blood examine to be a 'liquid biopsy,' so that eventually we can access cancer cells that are emblematic of the tumor without performing an invasive biopsy," said Cristofanilli, who is not interested in developing the test.
Experts stressed that the new type of test, if it ever arises, may still be years away, and researchers still aren't solid what these circulating tumor cells (CTCs) literally mean. "They may be able to smell small amounts of cancer cells but we don't discern the significance of that. We may be detecting things that don't have clinical significance," explained Dr Jay Brooks, chairman of hematology/oncology at Ochsner Health System in Baton Rouge.
And as Cristofanilli biting out, these plans so far are "only for research. The assay is not ready for clinical use". According to the AP, four outstanding cancer centers - Mass General, Memorial Sloan-Kettering Cancer Center in New York City, the University of Texas' MD Anderson Cancer Center in Houston, and the Dana-Farber Cancer Institute in Boston - will begin studies using the immature evaluate this year smoking. The evaluation would necessity to be developed "along with the change of unusual drug development and new targeted therapies so we can better use the bumf with a clinical purpose".
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