國家衛生研究院 NHRI:Item 3990099045/11520

NHRI > National Institute of Infectious Diseases and Vaccinology > Ih-Jen Su(2002-2015) > Periodical Articles > Item 3990099045/11520

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/11520

Title:	Development of pectin-type B gelatin polyelectrolyte complex for curcumin delivery in anticancer therapy
Authors:	Shih, FY;Su, IJ;Chu, LL;Lin, X;Kuo, SC;Hou, YC;Chiang, YT
Contributors:	National Institute of Infectious Diseases and Vaccinology
Abstract:	Curcumin has been proven to be a potent agent in colon cancer treatment. However, its hydrophobicity and low oral bioavailability hampered its clinical application. These limitations could be improved through appropriate formulations such as using polyelectrolyte complexes (PECs). PECs were self-assembled with polycations and polyanions in polar solvents. In this study, a novel pectin-type B gelatin PEC was developed for use in curcumin formulation. At pH 4.0, natural polyanions pectin and polycations type B gelatin spontaneously formed PECs in ethanol/water solution, whereas under mimetic gastrointestinal tract (GI tract) conditions, at pH 2.0 and 8.0, pectin and type B gelatin were electrically neutralized, and the PECs swelled to allow payload release. After being transferred to pH 7.0 condition, as in the colon environment, PECs were internalized into colon carcinomas. Thus, pectin-type B gelatin PECs were successfully prepared, and their constituent ratio and drug-loading process were also optimized. The optimum particle size of the PECs was 264.0 +/- 3.1 nm and they could swell as the zeta potential was altered at either pH 2.0 or 8.0. The optimum drug content and loading efficiency were 40% and 53%, respectively. At pH 2.0, curcumin was rapidly released from curcumin-loaded PECs, whereas at pH 8.0, curcumin-loaded PECs showed a sustained-release of curcumin. The bare PECs showed very low toxicity toward human normal cells, whereas curcumin-loaded PECs, after incubation at pH 2.0 for 2 h and at pH 8.0 for 4 h, induced cell cycle arrest and exhibited cytotoxic effect to HCT116 human colon cancer cells, even though these loaded PECs were pretreated with mimetic GI tract conditions. Our pectin-type B gelatin PECs were shown to be a promising oral formulation for curcumin delivery in anticancer therapy.
Date:	2018-11-17
Relation:	International Journal of Molecular Sciences. 2018 Nov 17;19(11):Article number 3625.
Link to:	http://dx.doi.org/10.3390/ijms19113625
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1422-0067&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000451528500341
Cited Times(Scopus):	https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85056710780
Appears in Collections:	[Ih-Jen Su(2002-2015)] Periodical Articles

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