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- W4308674775 abstract "The use of lasers in oncology is constantly evolving. In recent years, the mechanisms of the effect of laser radiation, particularly of the infrared spectrum, on tumour cells in combination with various chemotherapeutic agents have been studied.
 The aim. To study the effect of laser radiation with a wavelength of 660 and 810 nm on the survival of tumour cell cultures MCF7 and MCF7DOX in the presence of doxorubicin.
 Materials and methods. Tumour cells of MCF7 and MCF7DOX cultures were cultured in DMEM medium (Biowest, France) with 10 % fetal calf serum (FST) (Biowest, France) and 40 μg / ml gentamicin (Sigma, USA). Doxorubicin was added to the cells to a final concentration of 1 μg / ml. Cells were irradiated with a laser (Photonica-Plus, Ukraine) with a wavelength of 660 and 810 nm (irradiation time – 5 min, power density – 50 mV/cm2, irradiation dose 15 J/cm2). The results were recorded using a multiwell spectrophotometer (Labsystems Multiskan PLUS, Finland). Photomicrographs of cells were taken using a Carl Zeiss microscope, Germany.
 Results. Cell survival assessment and morphological characteristics in micropreparations indicate the antitumor efficacy of the combined effects of laser irradiation and doxorubicin. The most pronounced cytotoxic effect on MCF7-DOX culture cells was caused by doxorubicin exposure for 90 min in combination with infrared laser irradiation (λ=810 nm).
 Conclusions. Infrared laser light synergises with the toxic effects of doxorubicin and creates favourable conditions for apoptosis of tumour cells, as evidenced by cytomorphological data." @default.
- W4308674775 created "2022-11-14" @default.
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- W4308674775 date "2022-05-31" @default.
- W4308674775 modified "2023-10-16" @default.
- W4308674775 title "Study of the laser radiation effect in combination with doxorubicin on the survival of MCF7 and MCF7DOX culture cells" @default.
- W4308674775 doi "https://doi.org/10.21303/2504-5679.2022.002607" @default.
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