Table of Contents
Laser Chemistry
Volume 1, Issue 3, Pages 153-161
http://dx.doi.org/10.1155/LC.1.153

Different Responses of Proliferating and Resting Tumor HeLa Cells to Pulsed High Repetition Rate Low-Intensity Laser Light at 271 nm

1Laser Technology Center of the USSR Acad. Sci., Moscow region, Troitzk 142092, Russia
2National Cancer Research Center, Kashirsky prospect, 6, Moscow 113408, Russia
3Institute of Spectroscopy of the USSR Acad. Sci., Moscow region, Troitzk 142092, Russia

Received 15 April 1982

Copyright © 1983 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The action of pulsed high repetition rate UV laser radiation (2-nd harmonic of Cu vapor laser, λ = 271 nm, pulse duration 18 nsec, repetition rate 10 kHz) on proliferating and resting HeLa cells has been studied. The intensity of DNA synthesis changes after such kinds of irradiation for both types of cells. For proliferating cells DNA synthesis is suppressed, while for the resting ones stimulation is observed in the dose range from 0.05 to 5 J/m2.