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Co-Delivery of Carboplatin and Doxorubicin Using Zif-8 Coated Chitosan-Poly(N-Isopropyl Acrylamide) Nanoparticles Through a Dual Ph/Thermo Responsive Strategy to Breast Cancer Cells Publisher Pubmed

Summary: Nanoparticles deliver cancer drugs effectively, reducing side effects in breast cancer, study shows. #CancerTreatment #Nanotechnology

Dashti N1 ; Akbari V2 ; Varshosaz J3 ; Soleimanbeigi M1 ; Rostami M4
Authors

Source: International Journal of Biological Macromolecules Published:2024


Abstract

A dual pH/temperature sensitive core-shell nanoformulation has been developed based on ZIF-8 coated with chitosan-poly(N-isopropyl acrylamide) (CS-PNIPAAm) for co-delivery of doxorubicin (DOX) and carboplatin (CBP) in breast cancer cells. The resulting nanoparticles (NPs) had particle sizes around 200 nm and a zeta potential of about +30 mV. The CBP and DOX loading contents in the final NPs were 11.6 % and 55.54 %, respectively. NPs showed a pH and thermoresponsive drug release profile with a sustained prolonged release under physiological conditions. The in vitro cytotoxicity experiments showed a significant synergism of CBP and DOX to induce the IC50 of 1.96 μg/mL in MCF-7 cells and 4.54 μg/mL in MDA-MB-231 cells. Also, the final NPs were safer than free DOX and CBP on normal cells. The in vitro study confirmed the higher potency of the designed NPs in combination therapy against breast cancer cells with lower side effects than free drugs. © 2024
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