Paclitaxel-terminated peptide brush polymers

Jialei Zhu, Hao Sun, Cassandra E. Callmann, Matthew P. Thompson, Claudia Battistella, Maria T. Proetto, Andrea S. Carlini, Nathan C. Gianneschi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


In this paper, we report the preparation of paclitaxel-terminated peptide brush polymers wherein cell uptake and toxicity are tunable based on peptide sequence. Synthesis was enabled using a new paclitaxel-containing chain termination agent for ring-opening metathesis polymerization (ROMP). Critically, reverse phase HPLC could be used to efficiently separate peptide brush polymers consisting of one fluorophore and one terminal paclitaxel from crude polymer mixtures. These purified terminally-modified polymers showed greater potency than the original mixtures. Drug-terminated peptide brush polymers carrying positive charges exhibited enhanced cell uptake and cytotoxicity as compared to their neutral and negatively charged analogues.

Original languageEnglish (US)
Pages (from-to)6778-6781
Number of pages4
JournalChemical Communications
Issue number50
StatePublished - Jun 25 2020

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Chemistry
  • Ceramics and Composites
  • Metals and Alloys
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Catalysis


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