[#2015-18] Coriolus Knezevic, Aleksandar et al. Antigenotoxic effect of Trametes spp. Extracts against DNA damage on human peripheral white blood cells

Trametes species have been used for thousands of years in traditional and conventional medicine for the treatment of various types of diseases. The goal was to evaluate possible antigenotoxic effects of mycelium and basidiocarp extracts of selected Trametes species
and to assess dependence on their antioxidant potential. Trametes versicolor, T. hirsuta, and T. gibbosa were the species studied.
Antigenotoxic potentials of extracts were assessed on human peripheral white blood cells with basidiocarp and mycelium extracts
of the species. The alkaline comet test was used for detection of DNA strand breaks and alkali-labile sites, as well as the extent of
DNA migration. DPPH assay was used to estimate antioxidative properties of extracts. Fruiting body extracts of T. versicolor and
T. gibbosa as well as T. hirsuta extracts, except that at 20.0mg/mL, were not genotoxic agents. T. versicolor extract had at 5.0mg/mL
the greatest antigenotoxic effect in both pre- and posttreatment of leukocytes. The mycelium extracts of the three species had
no genotoxic activity and significant antigenotoxic effect against H2O2-induced DNA damage, both in pre- and post treatment. The
results suggest that extracts of these three species could be considered as strong antigenotoxic agents able to stimulate genoprotective response of cells.