[The effect of He-Ne laser radiation on the adhesive properties of the cell membrane].

Changes in the number of individual cells and cellular complexes after a standard dispergation procedure were used as a criterion for evaluating the strength of the cellular contacts at various time-points after the irradiation of HeLa monolayers with a He-Ne laser (100 J/m2, 10 W/m2, 10 s). The per cent of cellular complexes increased after the irradiation, being maximal (19.5 +/- 0.6) at 30 minutes of post-irradiation, and then decreased to the control level (12.1 +/- 0.5). Per cent of cellular complexes increased again at longer intervals (90-180 min) after the irradiation.