Harmful singlet oxygen can be helpful

LM Hulten, M Holmström, B Soussi - Free Radical Biology and Medicine, 1999 - Elsevier
LM Hulten, M Holmström, B Soussi
Free Radical Biology and Medicine, 1999Elsevier
Highly reactive harmful singlet oxygen O2 (1Δg) can be helpful while relaxing to its triplet
ground state O2 (3Σg−). The energy emitted during this relaxation from the excited energy
state is discernable at 634 nm. We report here on the effect of this energy as photon
illumination and as energy transfer in air on the production of reactive oxygen species (ROS)
by human monocytes, measured as isoluminol-enhanced chemiluminescence. We
demonstrate up to 60% decrease in the secretion of ROS after 2-min illumination of the …
Highly reactive harmful singlet oxygen O2(1Δg)can be helpful while relaxing to its triplet ground state O2(3Σg). The energy emitted during this relaxation from the excited energy state is discernable at 634 nm. We report here on the effect of this energy as photon illumination and as energy transfer in air on the production of reactive oxygen species (ROS) by human monocytes, measured as isoluminol-enhanced chemiluminescence. We demonstrate up to 60% decrease in the secretion of ROS after 2-min illumination of the monocytes stimulated with phorbol myristate acatate (PMA). The results provide in vitro documentation of the utility of singlet oxygen energy in modifying cellular behaviour.
Elsevier