Core–shell hydrogel microspheres with sequential drug release and magnetothermal synergy for drug-resistant ovarian cancer

antitumor studies confirmed that the combined chemo-hyperthermia treatment using the core-shell MSs produced the most effective inhibitory effect on drug-resistant OC cells, reducing cell viability to 21% after 48 h, significantly outperforming either chemotherapy or hyperthermia alone. This strategy enables a "resistance-reversal first, precision-killing later" treatment model, offering a novel and effective solution for the treatment of drug-resistant OC.