Author(s): Abbas A. Ridha, Soheila Kashanian*, Abbas H. Azandaryani, Ronak Rafipour, Elahe Mahdavian.
Aims: In the present work, folic acid-modified human serum albumin conjugated to cationic solid lipid nanoparticles were synthesized as nanocarriers of mitoxantrone for the treatment of breast cancer.
Background: Dual-targeted drug delivery is a new drug dosing strategy that is frequently used to enhance the therapeutic efficacy of anticancer drugs.
Objective: Dual targeting of the cancer cells was achieved by dual tagging of human serum albumin and folic acid on the surface of the lipid nanoparticles.
Methods: The targeted drug-loaded nanocomplexes were synthesized and characterized using transmission electron microscopy along with photon-correlation and Fourier-transform infrared spectroscopic techniques. The anti-cancer activity of the nanocomplexes was screened against an in-vitro model of MCF-7 and MDA-MB-231 breast cancer cell lines to examine drug efficacy.
Results: The entrapment efficiency and drug loading values for mitoxantrone were calculated to be 97 and 8.84%, respectively. The data from the drug release studies for the system indicated the release profile did not significantly change within a pH range of 5.5-7.4. The hemolysis ratio of the hybrid carrier was less than 5% even at the upper doses of 3 mg/mL, demonstrating its safety for intravenous injection with limited hemolysis and a long blood circulation time.
The cell cytotoxicity results confirmed that the drug hybrid nanocomplex was more toxic to breast cancer cells compared with the free drug. Furthermore, the weakly cationic and small size particles prevented opsonin binding of nanocomplexes, improving blood circulation time and cancer tissue uptake. To read out more, please visit: http://www.eurekaselect.com/node/176690
Journal: Anti-Cancer Agents in Medicinal Chemistry
Author(s): Runliang Feng, Wenxia Zhu, Wei Chu, Fangfang Teng, Ning Meng, Peizong Deng, Zhimei Song
Background: Curcumin is a natural hydrophobic product showing anticancer activity. Many studies show its potential use in the field of cancer treatment due to its safety and efficiency. However, its application is limited due to its low water-solubility and poor selective delivery to cancer.
Objective: A Y-shaped folic acid-modified poly (ethylene glycol)-b-poly (ε-caprolactone)2 copolymer was prepared to improve curcumin solubility and realize its selective delivery to cancer.
Method and Results: The copolymer was synthesized through selective acylation reaction of folic acid with α- monoamino poly(ethylene glycol)-b-poly(ε-caprolactone)2. Curcumin was encapsulated into the copolymeric micelles with 93.71% of encapsulation efficiency and 11.94 % of loading capacity. The results from confocal microscopy and cellular uptake tests showed that folic acid-modified copolymeric micelles could improve cellular uptake of curcumin in Hela and HepG2 cells compared with folic acid-unmodified micelles. In vitro cytotoxicity assay showed that folic acid-modified micelles improved anticancer activity against Hela and HepG2 cells in comparison to folic acidunmodified micelles. Meanwhile, both drug-loaded micelles demonstrated higher activity against Hela cell lines than HepG2.
Conclusion: The research results suggested that the folic acid-modified Y-shaped copolymeric micelles should be used to enhance hydrophobic anticancer drugs’ solubility and their specific delivery to folic acid receptors-overexpressed cancer.