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Poly(ethylene glycol)-modified nanocarriers for tumor-targeted and intracellular delivery.

AbstractThe success of anti-cancer therapies largely depends on the ability of the therapeutics to reach their designated cellular and intracellular target sites, while minimizing accumulation and action at non-specific sites. Surface modification of nanoparticulate carriers with poly(ethylene glycol) (PEG)/poly(ethylene oxide) (PEO) has emerged as a strategy to enhance solubility of hydrophobic drugs, prolong circulation time, minimize non-specific uptake, and allow for specific tumor-targeting through the enhanced permeability and retention effect. Furthermore, PEG/PEO modification has emerged as a platform for incorporation of active targeting ligands, thereby providing the drug and gene carriers with specific tumor-targeting properties through a flexible tether. This review focuses on the recent developments surrounding such PEG/PEO-surface modification of polymeric nanocarriers to promote tumor-targeting capabilities, thereby enhancing efficacy of anti-cancer therapeutic strategies.
AuthorsLilian E van Vlerken, Tushar K Vyas, Mansoor M Amiji (Affiliation: Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, 110 Mugar Life Sciences Building, Boston, Massachusetts 02115, USA.)
JournalPharmaceutical research (Pharm Res) Vol. 24 Issue 8 Pg. 1405-14 (Aug 2007) ISSN: 0724-8741 United States
PMID17393074 (Publication Type: Journal Article, Review)
Chemical References
  • Antineoplastic Agents
  • Polyethylene Glycols
Topics
  • Animals
  • Antineoplastic Agents (administration & dosage, therapeutic use)
  • Drug Delivery Systems (methods)
  • Gene Therapy (methods)
  • Humans
  • Models, Biological
  • Nanoparticles (chemistry)
  • Neoplasms (drug therapy, therapy)
  • Polyethylene Glycols (chemistry)