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. 2023 Nov 22;6(4):805–827. doi: 10.20517/cdr.2023.77

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© The Author(s) 2023.

© The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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(A) Schematic illustration of the formation of pH-sensitive nanosystems (Ac-α-CD NP); (B) The cell viability of MDA-MB-231 cells treated with different doses of PTX, PLGA NP, and Ac-α-CD NP (^**P < 0.01). This figure is quoted with permission from He et al.^[74]; (C) Schematic illustration of the antitumor progress of Ac-α-CD NP in MCF-7/ADR cells; (D) The P-gp expression level; and (E) the accumulation of DOX with different doses of Ac-α-CD NP in MCF-7/ADR cells (^*P < 0.05, ^**P < 0.01). This figure is quoted with permission from Shi et al.^[75]. CD: Cyclodextrin; DOX: doxorubicin; NP: nanoparticle; PTX: paclitaxel.