Abstract
Paclitaxel (PTX) is a hydrophobic chemotherapeutic agent cytotoxic against many serious cancers. This study aimed at designing novel PTX nanocrystals (PTX-NCs) coated with the biocompatible and biodegradable hydroxypropyl-beta-cyclodextrin (HPβCD) polymer with specific characteristics through the formation of a non-inclusion complex. Briefly, PTX-NCs were prepared by the anti-solvent method followed by homogenization. Then, the surface of the prepared PTX-NCs was modified using the HPβCD coat (HPβCD-PTX-NCs). The prepared nanocrystals, both coated and uncoated, were characterized in terms of size, polydispersity index, charge, morphology, and stability. Moreover, the nanocrystals were investigated using powder X-ray diffraction (PXRD), differential scanning calorimeter (DSC), and Fourier transform infrared spectroscopy (FTIR). As well, the in vitro release of PTX from the nanocrystals was determined under conditions similar to the IV route of administration. Furthermore, the tendency of the nanocrystals to induce hemolysis was investigated. Results indicated that the size was about 241.4 and 310.5 nm, the polydispersity index was 0.14 and 0.21, and the zeta potential was about − 22.6 and − 16.4 mV for PTX-NCs and HPβCD-PTX-NCs, respectively. Additionally, the PXRD, FTIR, and DSC profiles can be explained by the NCs’ integrity and coat formation. The SEM images showed that both PTX-NCs and HPβCD-PTX-NCs have rod-like structures. Moreover, HPβCD-PTX-NCs had significantly superior in vitro release than both PTX-NCs and PTX. Interestingly, the hemolytic assay showed that HPβCD-PTX-NCs had a more efficient and safer profile than PTX-NCs. This study emphasized that HPβCD could be an interesting candidate for the surface modification of PTX-NCs providing superior properties such as release and safety profiles.
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This research was funded by the Deanship of Research at Jordan University of Science and Technology, grant number (298/2021).
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Conceptualization, R.H. and N.A.; methodology, R.H., B.A., N.A., and M.M.; software, R.H.; validation, R.H., N.A., B.A., M.M., and T.L.; formal analysis, R.H. and N.A.; investigation, R.H.; resources, R.H.; data curation, R.H., N.A., B.A., M.M., and T.L.; writing—original draft preparation, R.H.; writing—review and editing, N.A., B.A., M.M., and T.L.; visualization, N.A.; supervision, N.A., B.A., M.M., and T.L.; project administration, N.A. and B.A.; funding acquisition, N.A. and B.A. All authors have read and agreed to the published version of the manuscript.
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Haddad, R., Alrabadi, N., Altaani, B. et al. Hydroxypropyl Beta Cyclodextrin as a Potential Surface Modifier for Paclitaxel Nanocrystals. AAPS PharmSciTech 23, 219 (2022). https://doi.org/10.1208/s12249-022-02373-y
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DOI: https://doi.org/10.1208/s12249-022-02373-y