[Complex effect of K+ ions and viability inhibitors of tumor cells]

It is shown that NaCN, actinomycin D and sarcolysin damaged EAT cells, and the level of cell damage depended on K+ concentration in the incubation salt solution and the injury agent. With respect to NaCN the cell sensitivity was found to rise to a great extent when the cells were incubated in the presence of 143 mM K+. For actinomycin D and sarcolysin the effect of K+ ions was negligible.