Effect of transforming growth factor-β2 on uterine leiomyoma cells proliferation

Aim. To study the role of transforming growth factor-β2 in the uterine leiomyoma pathogenesis.

Methods. Studies to determine the cytotoxic activity of the transforming growth factor-β2 regarding the temporary cell culture were conducted. The operational material was used from two women of reproductive age with uterine myoma (multiple symptomatic uterine myoma, proliferative type) who underwent hysterectomy. Patients mean age was 43.5±0.57. Obtained temporary culture cells were split into five groups depending on the transforming growth factor-β2 affecting dose (1000, 500, 100, 10 µg/10×106, and culture with no exposure). After incubation living and dead cells were counted at 280 times magnification. The cytotoxic activity was expressed as a percentage of live and dead cells.

Results. Total cell death (necrosis) was 23.0% when using factor at the dose 10 µg/10×106 cells, at the dose 100 µg/ 10×106 cells - 34.5%, at the dose 500 µg/10×106 cells - 44%, at the dose 1000 µg/10×106 cells - 59.5%. The most effective vital life suppressing activity of the transformed cells was observed when exposed to transforming growth factor-β2 at the dose 1000 µg/10×106 cells.

Conclusion. Transforming growth factor-β2 is capable to suppress the proliferating uterine fibroids growth under certain conditions and the dose, it has a significant dose-dependent cytotoxic effect in respect of the neoplasm.