Cytoproliferative activity of the HILT: in vitro survey

C. Tarantino, G. Rossi, G. Flamini, D. Fortuna
Lasers in Medical Science, 17(4):A22, 2002

Purpose: to assess the stimulating capacity of the cytoproliferation of HILT Therapy in vitro.
Discussion: HCT-8 ileocecal adenocarcinoma cells were exposed to single 7,69 J/cm2 (12 sec) doses of irradiation; VERO kidney cells were treated with doses of 2.7 watt and 15 Hz for 12 sec, through Nd:YAG laser.
Method: The assessment of cell proliferation was carried out by means of spectrophotometry, immunohistochemistry and direct cell counts.
Results: HCT-8 cells showed an increase of cell proliferation, while in VERO cells there wasn’t significant effects on proliferation.
Conclusion: this study indicate that irradiation with Nd:YAG 1064 nm pulsed wave induces the cell proliferation in vitro and there is a direct specificity between the dosimeter and the cellular line.