Ionizing irradiation is a commonly accepted treatment modality for lung cancer patients. However, the clinical outcome is hampered by normal tissue toxicity and tumor hypoxia. Since tumors often have higher levels of active heat shock protein 90 (Hsp90) than normal tissues, targeting of Hsp90 might provide a promising strategy to sensitize tumors towards irradiation. Hsp90 client proteins include oncogenic signaling proteins, cell cycle activators, growth factor receptors and hypoxia inducible factor-1α (HIF-1α). Overexpression of HIF-1α is assumed to promote malignant transformation and tumor progression and thus might reduce the accessibility to radiotherapy.
Daniela Schilling, Christine Bayer, Wei Li, Michael Molls, Peter Vaupel and Gabriele Multhoff
Prevention of Radiation-Induced Bladder Injury
Pelvic radiotherapy (RT) can cause debilitating bladder toxicities. In the recent study, Prevention of Radiation-Induced Bladder Injury: A Murine Study Using Captopril, researchers sought methods to protect against and alleviate RT-induced late bladder injury. See details and the full study here.