To stave off cancer stem cell growth in the brain, Dr. Boockvar is studying the use of two drugs already available for cancer treatment. Tarceva -- approved for the treatment of lung and pancreatic cancer -- works by stopping the growth and spread of cancer cells. Avastin -- approved for the treatment of colorectal cancers -- is also being studied for inhibiting cancer cell growth and works by stopping the growth of blood vessels (angiogenesis) that feed the tumor.
Preliminary results from these trials have shown that some patients' cancers are wiped out, whereas others remain resistant. Dr. Boockvar believes that these patients' drug resistance might be due to a class of stem cells resilient to available treatments. Finding biomarkers that distinguish these stem cells from those that are destroyed by known drugs might help researchers formulate new drugs.
"Determining a patient's cancer stem cell profile will take a lot of the guessing out of choosing a course of treatment," says Dr. Boockvar. "It will save money, medical resources and precious time for the patient."
Adapted from materials provided by New York- Presbyterian Hospital/Weill Cornell Medical Center.
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