The invention provides a bionic nano preparation based on
platelet membrane fragments as well as a preparation method and application of the bionic nano preparation, and belongs to the technical fieldof
medicine. By means of
drug combination of a
cyclin dependent
kinase 5(Cdk5) inhibitor and a chemotherapeutic
drug, on one hand,
tumor cells are killed with
chemotherapy, the
immune system is activated, content of IFN-gamma is recovered,
immunosuppression caused by postoperative stress is relieved, on the other hand, PD-L1 is down-regulated by the Cdk5 inhibitor, IFN-gamma related immune
drug resistance is relieved, and through combination of the Cdk5 inhibitor and the chemotherapeutic drug, dual characters of IFN-gamma are changed, the downstream immunosuppressive action of the IFN-gamma is removed, and the positive effect of IFN-gamma is exerted; and meanwhile, the problem of postoperative
targeted drug delivery is solved according to the biological trend characteristic of platelets,besides, with improvement of the preparation method, the preparation method of bionic nanoparticles based on the
platelet membrane fragments is simple, the drug-loading efficiency is high, and therefore, the bionic nanoparticles have good practical application value.