Doxorubicin (Dox) is an anthracycline antibiotic
that is one of the most common therapeutic agents in
cancer chemotherapy [15]. Dox binds non-covalently to
DNA, blocks the synthesis of nucleic acids, demonstrates
high anti-mitotic activity and pronounced mutagenic
effects, but also exerts toxic effects towards normal
tissues and cells [16]. The free radicals which are formed
during Dox chemotherapy, inactivate enzymes of antioxidant
protection and invoke immediate oxidative damage
of cells with high oxidative metabolism and activity of
the mitochondrial respiratory chain, particularly cardiac
myocytes and hepatocytes.
One of the ways in protection against Dox-induced
chemical insults of normal tissues is a combined use of
cytostatics together with antioxidants of different nature
[17]. One can assume that immobilization of Dox on C
fullerene [18] will prevent its toxic action on normal cells
and enhance its uptake by the target cells that is important
for the biomedical application of C
fullerene-drug
conjugates [19, 20].
60
The aim of this study was to evaluate the in vitro toxicity
of the C
60
fullerene with doxorubicin (C
+ Dox)
complex towards different cell types (tumor, immuno-
competent, hepatocytes) and compare it with the effect
of C
fullerene and free Dox under in vitro conditions.
osmoregulation