A novel mitochondriotoxic small molecule that selectively inhibits tumor cell growth

Cancer Cell. 2002 Jul;2(1):29-42. doi: 10.1016/s1535-6108(02)00082-x.

Abstract

Tumorigenesis results from events that impinge on a variety of collaborating metabolic pathways. To assess their role in this process, we utilized a cell-based assay to perform a high-throughput, chemical library screen. In so doing, we identified F16, a small molecule that selectively inhibits proliferation of mammary epithelial, neu-overexpressing cells, as well as a variety of mouse mammary tumor and human breast cancer cell lines. F16 belongs to a group of structurally similar molecules with a delocalized positive charge. The compound is accumulated in mitochondria of responsive cells, driven by the membrane potential, and it compromises their functional integrity. Mitochondrial hyperpolarization is a shared feature of many tumor cell lines, explaining the broad action spectrum of this novel delocalized lipophilic cation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Apoptosis / drug effects
  • Breast Neoplasms / genetics
  • Breast Neoplasms / metabolism*
  • Breast Neoplasms / pathology
  • Cations / pharmacology
  • Cations / toxicity
  • Cell Cycle / drug effects
  • Cell Division / drug effects
  • Cell Line, Transformed
  • Epithelial Cells / drug effects
  • Epithelial Cells / metabolism*
  • Epithelial Cells / pathology
  • Genes, erbB-2 / genetics*
  • Growth Inhibitors / chemistry
  • Growth Inhibitors / pharmacology*
  • Growth Inhibitors / toxicity
  • Humans
  • Indoles / metabolism*
  • Indoles / pharmacology
  • Mammary Neoplasms, Animal / genetics
  • Mammary Neoplasms, Animal / metabolism*
  • Mammary Neoplasms, Animal / pathology
  • Mammary Neoplasms, Experimental / metabolism*
  • Membrane Potentials
  • Mice
  • Mice, Inbred BALB C
  • Mice, Transgenic
  • Mitochondria / metabolism*
  • Mitochondria / ultrastructure
  • Pyridinium Compounds / metabolism*
  • Pyridinium Compounds / pharmacology
  • Receptor, ErbB-2 / metabolism
  • Signal Transduction / drug effects
  • Tumor Cells, Cultured

Substances

  • Cations
  • Growth Inhibitors
  • Indoles
  • Pyridinium Compounds
  • 4-(2-(indol-3-yl)vinyl)-1-methylpyridinium
  • Receptor, ErbB-2