Inhibition by squalene of the tumor-promoting activity of 12-O-tetradecanoylphorbol-13-acetate in mouse-skin carcinogenesis

Int J Cancer. 1992 Dec 2;52(6):950-2. doi: 10.1002/ijc.2910520620.

Abstract

Squalene inhibited the effect of tumor promoter 12-O-tetradecanoylphorbol-13-acetate (TPA), such as increased 32Pi incorporation into phospholipids of HeLa cell membrane, induction of Epstein-Barr-virus early antigen in Raji cell and induction of ornithine decarboxylase in mouse skin. Squalene also markedly suppressed the promoting activity of TPA on skin carcinogenesis in 7,12-dimethylbenz[a]anthracene-initiated mice.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anticarcinogenic Agents / pharmacology*
  • Antigens, Viral / drug effects
  • Cell Line
  • Enzyme Induction / drug effects
  • HeLa Cells
  • Herpesvirus 4, Human / drug effects
  • Herpesvirus 4, Human / immunology
  • Humans
  • Membrane Lipids / metabolism
  • Mice
  • Ornithine Decarboxylase / drug effects
  • Phospholipids / metabolism
  • Skin Neoplasms / etiology
  • Skin Neoplasms / metabolism
  • Skin Neoplasms / prevention & control*
  • Squalene / pharmacology*
  • Tetradecanoylphorbol Acetate / analogs & derivatives
  • Virus Activation / drug effects

Substances

  • Anticarcinogenic Agents
  • Antigens, Viral
  • Epstein-Barr virus early antigen
  • Membrane Lipids
  • Phospholipids
  • 12-O-tetradeca-2,4,6,8-tetranoylphorbol-13-acetate
  • Squalene
  • Ornithine Decarboxylase
  • Tetradecanoylphorbol Acetate