Phytocomponents screening for oncoprotector development

Background. Medicinal plants have a high chemopreventive potential in oncology. The structural diversity of plant biologically active substances: phenolic compounds (simple phenols, flavonoids, phenolic acids, tannins, etc.), terpenoids (mono-, diterpenoids, triterpene saponins, etc.), essential oils, for example, results in a wide range of antitumor activity. Complex herbal preparations are more effective and safe due to their multi-target effects on various regulatory mechanisms in combination with relatively low toxicity. The development of effective natural pharmaceutical compositions based on the structural diversity of biologically active substances seems relevant.

Aim. Number plant extracts antiproliferative effect against CaOv human ovarian adenocarcinoma cells investigation and potential phytocomponents selection for the novel antitumor pharmaceutical composition development.

Materials and methods. CaOv human ovarian adenocarcinoma cell line was used as a test model. The antiproliferative effect of plant extracts was measured by the radiometric method based on the ³H-thymidine incorporation into CaOv cells DNA. Half maximal inhibitory concentration (IC₅₀) was calculated using probit analysis. The selection of vegetable oil as an optimal extraction agent was carried out on C57BL/6 male mice based on the wound healing effect.

Results. The antiproliferative activity of 27 medical plant extracts was studied. The 14 most effective ones in these conditions were selected based on the IC₅₀. Linseed oil was chosen as an optimal extraction agent considered the wound-healing effect of individual vegetable oils (linseed, sunflower, corn), as well as the corresponding oil extracts of the phytocomposition.

Conclusion. The selected phytocomponents can be used as a foundation for an optimal compound development of a new pharmaceutical composition aimed at chemoprevention in cancer care. The choice of linseed vegetable oil as an experimental phytocomposition extractant is justified.

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