Increase in RNA and protein synthesis by mitochondria irradiated with helium-neon laser

Biochem Biophys Res Commun. 1989 Sep 29;163(3):1428-34. doi: 10.1016/0006-291x(89)91138-8.


To gain further insight into the mechanism of cell photostimulation by laser light, both RNA and protein synthesis were measured in mitochondria irradiated with the low power continuous wave He-Ne laser (Energy dose: 5 Joules/cm2). Following mitochondrial irradiation, both the rate and amount of incorporation of alpha-[32P]UTP and L-[35S]methionine, used to monitor RNA and protein synthesis respectively, proved to increase. Electrophoretic analysis made of the synthesis products clearly shows that He-Ne laser irradiation stimulates the synthesis of all mitochondrial transcription and translation products.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Helium
  • Kinetics
  • Lasers*
  • Methionine / metabolism
  • Mitochondria, Liver / metabolism
  • Mitochondria, Liver / radiation effects*
  • Neon
  • Protein Biosynthesis
  • Proteins / radiation effects*
  • RNA / biosynthesis
  • RNA / radiation effects*
  • Rats
  • Uridine Triphosphate / metabolism


  • Proteins
  • Helium
  • Neon
  • RNA
  • Methionine
  • Uridine Triphosphate