[Viability and proliferative activity of a Chinese hamster cell culture exposed to nitrosoureas in exponential and stationary growth phases]

Autor: G F, Makarova, O I, Epifanova, B V, Loginov, L B, Gorbacheva
Rok vydání: 1987
Předmět:
Zdroj: Tsitologiia. 29(2)
ISSN: 0041-3771
Popis: The lethal effect of antitumor nitrosourea chloroethyl derivatives on proliferating (exponential phase of growth) and non-proliferating (stationary phase of growth) cells is observed at a concentration 5-fold less than that of methyl derivatives revealed by the colony-formation technique. 1,3-bis(2-chlororoethyl)-1-nitrosourea is equally effective towards proliferating and non-proliferating cells, but chlorozotocin exerts a primary cytotoxic effect on proliferating cells. 1-methyl-1-nitrosourea at low concentration causes death more readily of proliferating cells than non-proliferating ones. However, studies on proliferative activity during the first hours after treatment with 1-methyl-1-nitrosourea revealed drug sensitivity in cells being at the early stationary phase of growth.
Databáze: OpenAIRE