Different Responses of Proliferating and Resting Tumor H<small.letters>e</small.letters>L<small.letters>a</small.letters> Cells to Pulsed High Repetition Rate Low-Intensity Laser Light at 271 <small.letters>nm</small.letters>

Karu, T. I.; Kalendo, G. S.; Letokhov, V. S.; Lobko, V. V.

doi:https://doi.org/10.1155/LC.1.153

Laser Chemistry

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Volume 1 | Article ID 574586 | https://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

T. I. Karu,¹G. S. Kalendo,²V. S. Letokhov,³and V. V. Lobko³

Received15 Apr 1982

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.

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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.

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