Polyester dendritic systems for drug delivery applications: Design, synthesis, and characterization

Henrik R. Ihre, Omayra L. Padilla de Jesús, Francis C. Szoka*, Jean M.J. Fréchet

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

310 Scopus citations


Attachment of drugs to high molecular weight polymers can significantly improve both tumor targeting and therapeutic efficacy due to the enhanced permeability and retention effect observed in tumor tissue. However, the commercial availability of well-defined water-soluble polymeric systems with narrow polydispersities that are biocompatible, nontoxic, and nonimmunogenic is rather limited. To address this need, we have investigated dendritic polymers as promising scaffolds for the preparation of new soluble polymeric drug carriers due to their well-defined molecular architecture and their multiplicity of surface sites. Herein we show the design and synthesis of dendritic polyester systems based on the monomer unit 2,2-bis(hydroxymethyl)propanoic acid as a possible versatile drug carrier. The potent anticancer drug doxorubicin was attached via a pH-sensitive linkage to one of the carriers presented, demonstrating the feasibility of using these polyester dendritic structures to prepare a viable polymer - drug conjugate.

Original languageEnglish (US)
Pages (from-to)443-452
Number of pages10
JournalBioconjugate Chemistry
Issue number3
StatePublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Biotechnology
  • Biomedical Engineering
  • Pharmacology
  • Pharmaceutical Science
  • Organic Chemistry


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