Use of Oxaliplatin for Enhancing Radiosensitivity in Radiotherapy of Cervical Cancer

摘要

The present invention relates to a method for enhancing radiosensitivity in radiotherapy of cervical cancer by administering to cervical cancer cells an effective amount of oxaliplatin. Radiation combined with pretreatment of oxaliplatin according to the present invention helps to enhance the cytotoxicity of radiation and result in augmenting radiation-induced mitotic catastrophe. The analysis on molecular mechanism revealed that oxaliplatin augmented the radiation-induced DNA double-strand break indicated by reducing gamma-H2AX expression, abrogated radiation-induced ATM phosphorylation and reduced the Chk2 phosphorylation. Oxaliplatin can be used as a promising radiosensitizer for treatment of cervical cancer in radiotherapy.