The invention belongs to the technical field of biological
medicine, discloses application of an anti-tumor nano-
drug with a radiotherapy
sensitization effect, and particularly discloses application of azodiisobutyronitrile in preparation of a sensitizer, preparation of an anti-tumor
drug with a
sensitization effect or preparation of an anti-tumor
drug carrier with a
sensitization effect. According to the invention,
azobisisobutyronitrile is used for preparing the sensitizer (X-
ray radiotherapy sensitizer) for the first time, and Pluronic F127 (F127) is used for encapsulating
azobisisobutyronitrile to obtain the radiotherapy sensitizer AIBN-coated F127. After X-
ray irradiation, AIBN (at) F127 taken by
tumor cells is activated, azo free radicals are generated in situ, and a strong anti-
cancer effect is achieved. The TNBC cells can be effectively killed, so that the stronger anti-tumor
immunocompetence is mobilized.