Abstract
The conjugate of antisense c-raf oligonucleotide (ODN) and poly(ethylene glycol) (PEG) was synthesized for intracellular ODN delivery. When combined with polyethylenimine (PEI), the ODN-PEG conjugate self-associated to form polyelectrolyte complex micelles in aqueous solution. The effective hydrodynamic diameter of the micelles was ca. 70 nm with a narrow size distribution. Flow cytometry analysis indicated that the cellular uptake of the micelles by A2780 cells was much higher than that of ODN alone. The micelles also showed a superior antiproliferative activity against ovarian cancer cells in vitro and in vivo.
Original language | English |
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Pages (from-to) | 183-191 |
Number of pages | 9 |
Journal | Journal of Controlled Release |
Volume | 93 |
Issue number | 2 |
DOIs | |
State | Published - Dec 5 2003 |
Externally published | Yes |
Funding
This study was supported from the Ministry of Science and Technology (M10214000117-02b1500-02110), from National Cancer Center (02-3-150), from the Ministry of Information and Communication (IMT-2000-B3-2), Republic of Korea.
Funders | Funder number |
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National Cancer Center | 02-3-150 |
Ministerio de Ciencia y Tecnología | M10214000117-02b1500-02110 |
Ministry of Information and Communication | IMT-2000-B3-2 |
Keywords
- Conjugate
- Delivery
- Micelles
- ODN
- PEG