The relationship between certain protein expressions(MLH1,ERCC1,PARP,RAD51,XRCC4) and CQ increased radiosensitivity in radioresistant MDA-MB 231 cells was examined by Western blot method.

• 用W estern b lot印迹杂交法检验与DNA修复有关的5种基因(MLH1,ERCC1,PARP,RAD51,XRCC4)蛋白表达与CQ增加辐射抗拒细胞辐射敏感性的关系;