Public release date: 6-Sep-2012 [ | E-mail | Share ] Contact: Elisabeth Lyons elyons@cell.com 617-386-2121 Cell Press Radiation therapy is one of the most widely used cancer treatments, but it often damages normal tissue and can lead to debilitating conditions. A class of drugs known as mammalian target of rapamycin (mTOR) inhibitors can prevent radiation-induced tissue damage in mice by protecting normal stem cells that are crucial for tissue repair, according to a preclinical study published by Cell Press in the September issue of the journal Cell Stem Cell. "We can exploit the emerging findings for the development of new preventive strategies and more effective treatment options for patients suffering this devastating disease," says senior study author J. Silvio Gutkind of the National Institute of Dental and Craniofacial Research. In response to radiation therapy, cancer patients often develop a painful condition called mucositistissue swelling in the mouth that can leave these patients unable to eat or drink and force them to rely on opioid-strength pain killers. Radiation therapy may cause this debilitating condition by depleting normal stem cells capable of repairing damaged tissue. In the new study, Gutkind and his team found that the mTOR inhibitor rapamycin protects stem cells … Continue reading
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