Monday, July 26, 2010

Irradiating brain's stem cell niche doubles survival time for patients with brain cancers

Source: University of California - Los Angeles
Date: July 26, 2010

Summary:

Patients with deadly glioblastomas who received high doses of radiation that hit a portion of the brain that harbors neural stem cells had double the progression-free survival time as patients who had lower doses or no radiation targeting the area, a study from the Radiation Oncology Department at UCLA's Jonsson Comprehensive Cancer Center has found.

Patients who underwent high doses of radiation that hit the specific neural stem cell site, known as the stem cell niche, experienced 15 months of progression-free survival, while patients receiving lower or no doses to this region experienced 7.2 months of progression-free survival, said Dr. Frank Pajonk, an associate professor of radiation oncology, a cancer center researcher and senior author of the study.

Pajonk said the study, published in the early online edition of the journal BMC Cancer, could result in changes in the way radiation therapy is given to patients with these deadly brain cancers.