The invention discloses homologous
cancer cell membrane coated ZIF-8 bionic nanoparticles and a preparation method thereof, and the homologous
cancer cell membrane coated ZIF-8 bionic nanoparticles enhance the
breast cancer treatment effect by combining a
chemotherapy and a
gene therapy in a bionic
cell membrane nano
system. According to the nano
system, a unique formula is utilized, and a
metal organic framework (ZIF-8s) and DNAzymes are combined together, so that the limitation of traditional
chemotherapy is solved. The nanoparticles are coated with a membrane produced by homologous
breast cancer cells. According to the bionic
coating, the nanoparticles can better escape from the recognition of an
immune system, and the homologous targeting ability of the nanoparticles is enhanced. The nano-particles have the advantages that the nano-particles can simulate
cancer cells, improve targeting and
biocompatibility, degrade and release DOX, DNAzymes and Zn < 2 + > ions in an
endosome acid environment, activate the DNAzymes,
cut a specific mRNA sequence, cause down-regulation of
survivin expression, enable the cancer cells to be sensitive to
chemotherapy and enhance the cytotoxic effect of the DOX. The use of the nanoparticles is expected to improve the
curative effect of chemotherapy and reduce the
side effect of chemotherapy.