A novel pyrrole-imidazole polyamide targets Aurora kinase A and suppresses tumor growth in vivo

Biochem Biophys Res Commun. 2021 Sep 24:571:167-173. doi: 10.1016/j.bbrc.2021.07.077. Epub 2021 Jul 27.

Abstract

Aurora kinase A (Aurora A) plays a critical role in regulating cell mitotic progression and has been considered as a promising drug target for cancer therapy. To develop a novel molecule targeting Aurora A with high selectivity and efficacy, we designed and synthesized a pyrrole-imidazole polyamide (PIP) Hoechst conjugate, PIP-Ht, targeting to a cell-cycle regulated DNA sequence locating at the promoter of human Aurora A gene (AURKA). PIP-Ht potently suppressed AURKA promoter activities, mRNA expression and protein level, induced tumor cell cycle delay and inhibited tumor cell proliferation in vitro. Furthermore, subcutaneous injection of PIP-Ht into mice bearing human cancer xenografts induced significant tumor growth suppression and cell apoptosis. Collectively, PIP-Ht exhibits the potential as an effective therapeutic candidate for the tumor treatment.

Keywords: Aurora A inhibitor; Pyrrole-imidazole polyamide; Tumor cell-cycle.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Apoptosis / drug effects
  • Aurora Kinase A / antagonists & inhibitors*
  • Aurora Kinase A / metabolism
  • Cell Proliferation / drug effects
  • Cell Survival / drug effects
  • Drug Screening Assays, Antitumor
  • Female
  • Humans
  • Imidazoles / chemistry
  • Imidazoles / pharmacology*
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • Neoplasms, Experimental / drug therapy
  • Neoplasms, Experimental / metabolism
  • Neoplasms, Experimental / pathology
  • Nylons / chemistry
  • Nylons / pharmacology*
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Pyrroles / chemistry
  • Pyrroles / pharmacology*
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents
  • Imidazoles
  • Nylons
  • Protein Kinase Inhibitors
  • Pyrroles
  • imidazole
  • AURKA protein, human
  • Aurora Kinase A