Multivalent peptidomimetic conjugates: A versatile platform for modulating androgen receptor activity

Paul M. Levine, Keren Imberg, Michael J. Garabedian, Kent Kirshenbaum

Research output: Contribution to journalArticlepeer-review


We introduce a family of multivalent peptidomimetic conjugates that modulate the activity of the androgen receptor (AR). Bioactive ethisterone ligands were conjugated to a set of sequence-specific peptoid oligomers. Certain multivalent peptoid conjugates enhance AR-mediated transcriptional activation. We identify a linear and a cyclic conjugate that exhibit potent anti-proliferative activity in LNCaP-abl cells, a model of therapy-resistant prostate cancer. The linear conjugate blocks AR action by competing for ligand binding. In contrast, the cyclic conjugate is active despite its inability to compete against endogenous ligand for binding to AR in vitro, suggesting a non-competitive mode of action. These results establish a versatile platform to design competitive and non-competitive AR modulators with potential therapeutic significance.

Original languageEnglish (US)
Pages (from-to)6912-6915
Number of pages4
JournalJournal of the American Chemical Society
Issue number16
StatePublished - Apr 25 2012

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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