This Investigation is devoted to the search for new effective anticancer drugs, which is one of the priority areas of medicine. Effect of extracts of maize anthocyanin and Gratiola officinalis drug was studied by using morphological and biochemical methods in experiments in vivo on 30 laboratory rats with transplanted liver cancer PC-1. It was found that an extract of Gratiola officinalis has selective cytotoxic and cytostatic effects on tumor cells. Zea mays extract reduces endogenous intoxication, but its effect on the tumor requires further study.Keywords: extract, Gratiola officinalis, corn, liver cancer, toxicity.Cite as Navolokin NA, Polukonova NV, Maslyakova GN, Bucharskaya AB, Durnova NA. Effect of extracts of Gratiola officinalis and Zea mays on the tumor and the morphology of the internal organs of rats with transplanted liver cancer.

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Abstract:The way of vegetable raw materials extraction which allows to receive nontoxical composition of biological active agents from poisonous plants such as Gratiola officinalis L. was described. The alkaloids exit changes with the increase of ethyl alcohol percentage (from 15% to 96%). The extract was obtained using 96% ethanol and did not give positive high quality reaction to the content of alkaloids. The chemical composition with new nontoxical biological active composition of Gratiola officinalis L. extract was investigated. The extract contains a previously unknown plant -bioflavonoid quercetin. The average value of quercetin in this extract using the calibration curve of the standard sample quercetin (98%) Sigma is 0.66%. In the dry rest of extractive substances (Gratiola officinalis L.) the quantity of quercetin was 350 mkg (obtained from 10 g of a dry grass) as was established by the method of a liquid chromatography.

Objective -The discovery of the apoptosis-inducing effects of flavonoid vagonin allowed to make an assumption of existence of similar effect in others flavonoids. This study is devoted to the effects of Gratīola officinālis extract on cell culture of the human kidney cancer.Methods -Cell cultures of human kidney carcinoma -Caki-1 and SN12c were used in the study. The cells were stained with Hoechat 33258 dye. The number of living cells, cells in a state of apoptosis and mitosis were counted. The Cramer-Welch criterion (T) was used to compare the obtained data.Results -The activation of apoptosis was noted at all concentrations of the Gratiola officinalis L. extract during the first day of exposure. The apoptotic activity increased with increasing of extract concentration. After 48 hours, this activity was maintained only at a Gratiola officinalis L. extract concentration of 0.9 mg/ml. After 24 hours, the apoptotic activity of the extract was more expressed in the culture of CaKi-1. However, after 48 hours the extract induces more pronounced apoptosis in the culture of Sn12c cells. The cytotoxic activity of the extract was not differ after 24 hours in both cultures, after 48 hours it was more pronounced in the culture of CaKi-1. Conclusion -We revealed a pronounced antitumor and apoptotic activity of the Gratiola officinalis L. extract against the cultures of the kidney cancer Caki-1 and Sn12c. Apoptosis of tumor cells can be manifested in the form of pycnosis of the nucleus, the formation of apoptotic bodies and the emergence of cellular debris resulting from complete degradation of tumor cells. The apoptotic activity of the Gratiola officinalis extract depends on their concentration.

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