Cited by 90Advanced Drug Delivery SystemsNanoparticle-Based Drug DeliveryRNA Interference and Gene Delivery

Polyion Complex Micelles Composed of All-TranS Retinoic Acid and Poly (Ethylene Glycol)-Grafted-Chitosan

Jeong, Young-Il, Kim, Sang-Hyo, Jung, Tae-Young, Kim, In-Young, Kang, Sam-Suk, Jin, Yong-Hao, Ryu, Hyang-Hwa, Sun, Heung-Suk +4 more·2006·Journal of Pharmaceutical Sciences

Abstract

The goal of this study is to develop novel types of polyion complex micelles for the drug delivery to brain tumor. Methoxy poly(ethylene glycol) (mPEG)-grafted chitosan (CP) was synthesized in order to make polymeric micelles encapsulating all-trans retinoic acid (ATRA) based on polyion complex formation. Polyion complex micelles were found to have spherical shapes with sizes of about 50 approximately 200 nm. The loading efficiency of micelle was higher than 80% (w/w) for all formulations. 1H nuclear magnetic resonance (NMR) spectra confirmed the formation of polymeric micelles. The CP graft copolymer and ATRA have distinguishing peaks in their 1H NMR spectra. The specific peaks of ATRA disappeared in D2O or DMSO while it appeared at mixtures of D2O/DMSO, indicating that ATRA and chitosan formed ion complex inner-core. In the cell cytotoxicity study using U87MG cells in vitro, polyion complex micelles showed similar cytotoxicity to that of free ATRA. A migration test was performed to investigate the inhibition of tumor cell invasion in vitro. The results suggested that the polyion complex micelles was more effective at inhibiting tumor cell migration than free ATRA.

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Crossref · 10.1002/jps.20586

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36 of 36 references verified0 citation errors · 0 not checkable

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  • Sustained release of RA for more than 1 month can be accomplished by encapsulating it into biodegradable microspheres and tuning release rate by adjusting polymer composition, by encapsulation in polyion complex micelles and adjusting polymer composition or drug content, or by encapsulation in liposomes.

    “The sustained release of RA for more than 1 month can be accomplished by encapsulating it into biodegradable microspheres and tuning the release rate by adjusting polymer composition in the formulation61, by the encapsulation in polyion complex micelles62 and adjusting polymer composition or drug content, or by the encapsulation in liposomes49.”
  • Because of the hydrophobicity of RA, the occurrence of a burst release in most formulations is negligible.

    “Because of the hydrophobicity of RA, the occurrence of a burst release in most formulations is negligible44,47,51,63.”
  • Polymeric micelles composed by methoxy-grafted chitosan and encapsulating ATRA were more effective at inhibiting glioblastoma cell line migration in vitro than the free agent.

    “polymeric micelles composed by methoxy-grafted chitosan and encapsulating ATRA were more effective at inhibiting glioblastoma cell line migration in vitro than the free agent62.”

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Authors
Jeong, Y.-I., Kim, S.-H., Jung, T.-Y., Kim, I.-Y., Kang, S.-S., Jin, Y.-H., Ryu, H.-H., Sun, H.-S., Jin, S., Kim, K.-K., Ahn, K.-Y., & Jung, S.
Affiliations
  • Chonnam National University (KR)
  • Chonnam National University Hwasun Hospital (KR)
Corresponding author
Jung, Shin
Venue
Journal of Pharmaceutical Sciences
Publisher
Elsevier BV
Published
2006-11
Volume
95
Issue
11
Pages
2348-2360
ISSN
0022-3549 (ISSN-L)
OpenAlex
W2012176374
Cited by
90
References
37
Citations by year
2026: 1 · 2025: 3 · 2023: 2 · 2022: 5 · 2021: 3 · 2020: 6 · 2019: 1 · 2018: 4 · 2017: 3 · 2016: 9 · 2015: 8 · 2014: 8 · 2013: 5 · 2012: 6
FWCI
3.19
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Pharmaceutical Sciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
polyion complex micelles, all-trans retinoic acid, brain tumor drug delivery, tumor cell migration inhibition, U87 cells, cytotoxicity, tumor invasion
MeSH terms
Adsorption, Antineoplastic Agents, Brain Neoplasms, Carbohydrate Sequence, Cell Survival, Dimethyl Sulfoxide, Drug Carriers, Drug Compounding, Excipients, Glioma, Humans, Micelles, Molecular Sequence Data, Neoplasm Invasiveness, Magnetic Resonance Spectroscopy, Particle Size, Polyethylene Glycols, Mononuclear Phagocyte System, Tretinoin, Drug Delivery Systems, Cell Line, Tumor, Microscopy, Electron, Transmission, Chitosan, Nanoparticles

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