Journal of Materials Science: Materials in Medicine | VOL. 24
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Encapsulation of curcumin within poly(amidoamine) dendrimers for delivery to cancer cells

Publication Date Jun 19, 2013

Abstract

Curcumin has anti-proliferative and pro-apototic properties against a variety of cancer cells in vitro. Unfortunately, the water-insolubility and instability leads to its low bioavailability in vivo tests. Here, we report a general approach to using poly(amidoamine) dendrimer with acetyl terminal groups to encapsulate curcumin(G₅-Ac/Cur) for drug delivery to cancer cells. The solubility, release kinetics, anticancer activity, and apoptotic-related protein expression (Bax and Bcl-2) were investigated in detail. Comparing with curcumin, the water-solubility value of G₅-Ac/Cur increased 200-fold, and the release of curcumin from the complexes was in a sustained manner. G₅-Ac/Cur showed higher anti-proliferative activity against A549 cell lines and had the better effect on the generation of intracellular reactive oxygen species, the mitochondrial membrane potential and cell apoptosis. Furthermore, the ratio of Bax/Bcl-2 was higher in samples treated with G₅-Ac/Cur. The results indicated that the G₅-Ac drug delivery system could improve the solubility and anti-cancer effect of curcumin.

Concepts

Anti-cancer Effect Of Curcumin Encapsulation Of Curcumin Release Of Curcumin A549 Cell Lines Mitochondrial Membrane Potential Low Bioavailability Release Kinetics Solubility Of Curcumin Generation Of Reactive Oxygen Species Anticancer Activity

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