Journal
RSC ADVANCES
Volume 8, Issue 41, Pages 22967-22973Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra03069c
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Funding
- Thailand Research Funds through the Research Team Promotion Grant [RTA6180003]
- Silpakorn University Research and Development Institute [SURDI610110]
- Faculty of Pharmacy, Silpakorn University
- Beuth Hochschule fur Technik Berlin, University of Applied Sciences
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Polymeric nanocarriers were prepared via a dialysis method using three chitosan derivatives, N-benzyl-N,O-succinyl chitosan (BSCT), N-naphthyl-N,O-succinyl chitosan (NSCT), and N-octyl-N-O-succinyl chitosan (OSCT) and were coordinated to cisplatin. The nanocarrier properties and cytotoxicity on the human carcinoma cells, HN22 (head and neck), were investigated. In addition, intracellular cisplatin accumulation, apoptosis induction and toxicity on renal cells were also evaluated. The findings revealed that the succinyl groups of the polymers were perfectly deprotonated and bound with cisplatin by co-ordinate bonds at pH 8.5. Among the derivatives, BSCT exhibited the highest cisplatin loading and release in simulated physiological medium. The cytotoxicities on HN22 cells of cisplatin-loaded BSCT nanocarriers were lower than that of free cisplatin, however, they presented a greater percentage of early apoptosis in HN22 cells and could decrease cisplatin induced renal cell death. In conclusion, the BSCT self-assembly nanocarrier might be a cisplatin carrier for sustained release, which provides prolonged antitumour treatment and reduced nephrotoxicity.
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