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Preparation of anticancer micro-medicine based on quinoline and chitosan with pH responsive release performance.
Colloids and Surfaces. B, Biointerfaces 2018 May 2
N-(2-(3-fluorobenzyl)-2H-indazol-5-yl)-2-phenyl-2H-pyrazolo[4,3-c]qui- nolin-4-amine (LZC-2b) with a quinoline structure was synthesized as an anticancer prodrug. The pH sensitive anticancer drugs obtained by a simple hydrothermal method. The interaction of chitosan (Cts) and LZC-2b is used to complete the encapsulation without any cross-linking. The obtained micromedicine (LZC-2b@Cts-MSs) has an average size of ∼980 nm. The drug loading efficiency (DLE) of LZC-2b@Cts-MSs was about 79%. In addition, drug release from LZC-2b@Cts-MSs was pH depended. At pH = 7.4, only 5.1% of loaded LZC-2b was released, while 90.3% of loaded LZC-2b was released at pH = 5.0. Cell culture results indicate that LZC-2b@Cts-MSs can be easily uptaken by KB cells. Cell viability results show that KB cells can be effectively killed by LZC-2b@Cts-MSs. Our strategy of synthesis and preparation of pH responsive LZC-2b@Cts-MSs has promising prospect in chemotherapy of oral cancer.
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