Abstract
A combination of cocktail chemotherapy (CCT), photothermal therapy (PTT) and inhibition of angiogenesis was investigated as an effective approach to combat major challenges of multidrug resistance and non-targeted drug delivery encountered in conventional cancer therapy. An injectable nanocarrier was developed through functionalization of carbon nanotubes (CNTs) with rationally modified carbohydrate (β-Cyclodextrin-CD) derived pH and thermo responsive polymer. Embedding CNT to CD polymer offers a nanocarrier which effectively demonstrated CCT, high NIR triggered photothermal efficiency, anti-angiogenic potential for selective tumor homing as well as enhanced multi-drug resistance (MDR) reversal with minimal toxic effects on normal cells. The simultaneously loading with curcumin and doxorubicin hydrochloride exhibited synergistic effect for triggering antitumor effect in vitro and demonstrated down regulation of growth factors associated with angiogenesis ex-ovo. In-vivo studies ascertained that the nanocarrier synthesized with the rational for MDR reversal can lead to enhanced cancer cell death via multiple approaches.
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