Gliomas are common brain tumors that comprise about one third of all cancers of the nervous system. In a study funded by the National Institutes of Health (NIH), researchers tested a novel combination treatment approach on mice with tumors with characteristics similar to human astrocytomas—a type of slow-growing glioma—and found tumor regression in 60 percent of the mice treated. These encouraging results, published in the Journal of Clinical Investigation, could be the first step toward developing a treatment for this type of brain cancer.