[Effect of pulse laser UV-radiation on proliferating and resting HeLa tumor cells]

Low-intensity pulse-periodic UV-radiation (lambda = 271.2 nm) within a definite repetition frequency interval (about 10 kHz and 22 kHz) and doses ranging from 0.1 to 10 J/m2 has a selective action on resting HeLa cells. In the same conditions, continuous UV-radiation (lambda = 270 nm) as well as powerful single picosecond pulses (lambda = 266 nm) do not affect the resting cells. The response of proliferating and resting cells to these types of irradiation in different.