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Copolymeric Micelles for Delivery of EGCG and Cyclopamine to Pancreatic Cancer Cells.
- Source :
-
Nutrition & Cancer . Jul2014, Vol. 66 Issue 5, p896-903. 8p. - Publication Year :
- 2014
-
Abstract
- Our objective was to synthesize a copolymer for delivery and protection of (-)-epigallocatechin gallate (EGCG). Methoxy poly(ethylene glycol)-b-poly[5-methyl-5-(3, 4, 5-trimethoxybenzoyol)-1, 3-dioxan-2-one-co-lactide] [mPEG-b-P(TM-co-LA)] copolymer was synthesized and characterized. The use of gallate containing monomer resulted in a copolymer that could show enhanced drug loading, stability, and sustained release of EGCG from mPEG-b-P(TM-co-LA) micelles as determined using LC/MS. The combination of EGCG and cyclopamine (CyA) displayed remarkable effects on growth inhibition of Mia PaCa-2 pancreatic cancer cells and induction of apoptosis. Although the expression level of Gli-1 was markedly downregulated by cyclopamine treatment, treatment with EGCG significantly inhibited the phosphorylation of EGFR in Mia PaCa-2 cells. Gallate containing copolymer can be used for micellar delivery of EGCG and CyA and the combination of these drugs can target 2 signaling pathways, thereby providing an effective way to treat pancreatic cancer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01635581
- Volume :
- 66
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Nutrition & Cancer
- Publication Type :
- Academic Journal
- Accession number :
- 96673001
- Full Text :
- https://doi.org/10.1080/01635581.2014.904908