ВЛИЯНИЕ ФЕНУГРЕКА НА УРОВЕНЬ МАЛОНОВОГО ДИАЛЬДЕГИДА В ОРГАНАХ И НЕКОТОРЫЕ ГЕМАТОЛОГИЧЕСКИЕ ПОКАЗАТЕЛИ У ЖИВОТНЫХ С ПЕРЕВИВНЫМИ ОПУХОЛЯМИ

This paper deals with effect of fenugreek on the level of malone dialdehyde and certain hematologic parameters in animals with grafted Ca755 mammary carcinoma, L1210 lymphoid leukemia and Guerin carcinoma substrains, resistant to doxorubicin and cisplatin. Fenugreek consumption was shown to amend hematologic parameters and decrease level of malone dialdehyde in liver (32–63 %), kidney (21 %) and heart (33 %) in animals with different genesis tumors. Thus, these results show that fenugreek can be a potential antioxidant agent.Изучено влияние фенугрека на уровень малонового диальдегида (МДА) в органах и некоторые гематологические показали у животных с перевивными опухолями (карцинома молочной железы Са755, лимфолейкоз L1210 и субштаммы карциномы Герена, резистентные к действию цисплатина и доксорубицина). Показано, что потребление фенугрека улучшает показатели периферической крови  экспериментальных животных. Выявлено также, что включение в кормовой рацион животных с перевитыми опухолями фенугрека (Trigonella Foenum Graecum L.) приводит к снижению уровня МДА в печени на 32–63 %, почках – на 21 %, в сердце – на33 %. Эти данные в определенной степени могут свидетельствовать об антиоксидантных свойствах фенугрека

Green tea, red wine and lemon extracts reduce experimental tumor growth and cancer drug toxicity

Aim: To evaluate antitumor effect of plant polyphenol extracts from green tea, red wine lees and/or lemon peel alone and in combination with antitumor drugs on the growth of different transplanted tumors in experimental animals. Materials and Methods: Green tea extract (GTE) was prepared from green tea infusion. GTE-based composites of red wine (GTRW), lemon peel (GTRWL) and/or NanoGTE as well as corresponding nanocomposites were prepared. The total polyphenolics of the different GTE-based extracts ranged from 18.0% to 21.3%. The effects of GTE-based extracts were studied in sarcoma 180, Ehrlich carcinoma, B16 melanoma, Ca755 mammary carcinoma, P388 leukemia, L1210 leukemia, and Guerin carcinoma (original, cisplatin-resistant and doxorubicin-resistant variants). The extracts were administered as 0.1% solution in drinking water (0.6–1.0 mg by total polyphenolics per mouse per day and 4.0–6.3 mg per rat per day). Results: Tumor growth inhibition (TGI) in mice treated with NanoGTE, cisplatin or cisplatin + NanoGTE was 27%, 55% and 78%, respectively, in Sarcoma 180%, 21%, 45% and 59%, respectively, in Ehrlich carcinoma; and 8%, 13% and 38%, respectively in B16 melanoma. Composites of NanoGTE, red wine, and lemon peel (NanoGTRWL) enhanced the antitumor effects of cyclophosphamide in mice with Ca755 mammary carcinoma. The treatment with combination of NanoGTE and inhibitors of polyamines (PA) synthesis (DFMO + MGBG) resulted in significant TGI of P388 leukemia (up to 71%) and L1210 leukemia. In rats transplanted with Guerin carcinoma (parental strain), treatment with GTRW or GTE alone resulted in 25–28% TGI vs. 55–68% TGI in cisplatin-treated animals. The inhibition observed in the case of combination of GTE or GTRW with cisplatin was additive giving 81–88% TGI. Similar effects were observed when combinations of the cytostatics with GTE (or ­NanoGTE) were tested against cisplatin- or doxorubicin-resistant Guerin carcinoma. Moreover, the plant extracts lowered side toxicity of the drugs. Treatment with GTE, NanoGTE, and NanoGTRW decreased the levels of malondialdehyde in heart, kidney and liver tissue of experimental animals, as well as the levels of urea and creatinine in blood serum, increased erythrocyte and platelet counts, hemoglobin content, and decreased leucocyte counts. Conclusion: The obtained data indicate the prospects for further deve­lopment of GTE and corresponding nanocomposites as auxiliary agents in cancer chemotherapy. Key Words: polyphenolic plant extracts, antitumor effect, cancer therapy

ПРИМЕНЕНИЕ РЕАКЦИИ КАНЦЕРОЛИЗА ДЛЯ ПЕРВИЧНОГО СКРИНИНГА ПРОТИВООПУХОЛЕВОЙ АКТИВНОСТИ ПРОДУКТОВ ЛЕЧЕБНОГО ПИТАНИЯ

There are presented the data of an extended trial of a previously patented method for pre-non-clinical screening of foods being suggested for clinical nutrition of the cancer patients. The method is based on an original modification of cancerolysis reaction. In a series of different transplantable tumor models, it is shown that increase or decrease (versus the intact animals) of the blood serum cancerolysis activity in the healthy animals fed with the tested foods is in univical correspondence with retardation or acceleration of tumor growth in tumor-bearing animals.Представлены данные расширенной апробации запатентованного ранее метода преддоклинического скрининга противоопухолевой активности продуктов, которые предполагается применять в лечебном питании онкологических больных. Метод основан на оригинальной модификации реакции канцеролиза. На ряде перевивных опухолевых моделей показано, что повышение или снижение (относительно интактного контроля) канцеролитической активности сыворотки крови здоровых животных при потреблении ими испытуемых продуктов однозначно соответствует торможению или ускорению роста экспериментальных опухолей у животных-опухоленосителей

The 11th International Congress on Targeted Anticancer Therapies, Paris,4-6 March 2013 (TAT 2013)

A range of new and promising targeted drugs currently under development for improved cancer therapy were presented during the 11th International Congress on Targeted Anticancer Therapies, Paris, 4–6 March 2013 (TAT 2013). TAT 2013 was attended by over 500 participants from 46 countries. More than 60 plenary lectures and 70 posters, presented by leading experts in clinical cancer research and drug development, were devoted to dozens of emerging targeted agents and new drug targets under development for cancer therap

EFFECT OF FENUGREEK ON THE LEVEL OF MALONE DIALDEHYDE AND CERTAIN HEMATOLOGIC PARAMETERS IN TUMOR-BEARING ANIMALS

This paper deals with effect of fenugreek on the level of malone dialdehyde and certain hematologic parameters in animals with grafted Ca755 mammary carcinoma, L1210 lymphoid leukemia and Guerin carcinoma substrains, resistant to doxorubicin and cisplatin. Fenugreek consumption was shown to amend hematologic parameters and decrease level of malone dialdehyde in liver (32–63 %), kidney (21 %) and heart (33 %) in animals with different genesis tumors. Thus, these results show that fenugreek can be a potential antioxidant agent

APPLICATION OF CANCEROLYSIS REACTION TO PRIMARY SCREENING OF CLINICAL FOOD’S ACTIVITY

There are presented the data of an extended trial of a previously patented method for pre-non-clinical screening of foods being suggested for clinical nutrition of the cancer patients. The method is based on an original modification of cancerolysis reaction. In a series of different transplantable tumor models, it is shown that increase or decrease (versus the intact animals) of the blood serum cancerolysis activity in the healthy animals fed with the tested foods is in univical correspondence with retardation or acceleration of tumor growth in tumor-bearing animals

GREEN TEA, RED WINE AND LEMON EXTRACTS REDUCE EXPERIMENTAL TUMOR GROWTH AND CANCER DRUG TOXICITY

Aim: To evaluate antitumor effect of plant polyphenol extracts from green tea, red wine lees and/or lemon peel alone and in combination with antitumor drugs on the growth of different transplanted tumors in experimental animals. Materials and Methods: Green tea extract (GTE) was prepared from green tea infusion. GTE-based composites of red wine (GTRW), lemon peel (GTRWL) and/or NanoGTE as well as corresponding nanocomposites were prepared. The total polyphenolics of the different GTE-based extracts ranged from 18.0% to 21.3%. The effects of GTE-based extracts were studied in sarcoma 180, Ehrlich carcinoma, B16 melanoma, Ca755 mammary carcinoma, P388 leukemia, L1210 leukemia, and Guerin carcinoma (original, cisplatin-resistant and doxorubicin-resistant variants). The extracts were administered as 0.1% solution in drinking water (0.6–1.0 mg by total polyphenolics per mouse per day and 4.0–6.3 mg per rat per day). Results: Tumor growth inhibition (TGI) in mice treated with NanoGTE, cisplatin or cisplatin + NanoGTE was 27%, 55% and 78%, respectively, in Sarcoma 180%, 21%, 45% and 59%, respectively, in Ehrlich carcinoma; and 8%, 13% and 38%, respectively in B16 melanoma. Composites of NanoGTE, red wine, and lemon peel (NanoGTRWL) enhanced the antitumor effects of cyclophosphamide in mice with Ca755 mammary carcinoma. The treatment with combination of NanoGTE and inhibitors of polyamines (PA) synthesis (DFMO + MGBG) resulted in significant TGI of P388 leukemia (up to 71%) and L1210 leukemia. In rats transplanted with Guerin carcinoma (parental strain), treatment with GTRW or GTE alone resulted in 25–28% TGI vs. 55–68% TGI in cisplatin-treated animals. The inhibition observed in the case of combination of GTE or GTRW with cisplatin was additive giving 81–88% TGI. Similar effects were observed when combinations of the cytostatics with GTE (or ­NanoGTE) were tested against cisplatin- or doxorubicin-resistant Guerin carcinoma. Moreover, the plant extracts lowered side toxicity of the drugs. Treatment with GTE, NanoGTE, and NanoGTRW decreased the levels of malondialdehyde in heart, kidney and liver tissue of experimental animals, as well as the levels of urea and creatinine in blood serum, increased erythrocyte and platelet counts, hemoglobin content, and decreased leucocyte counts. Conclusion: The obtained data indicate the prospects for further deve­lopment of GTE and corresponding nanocomposites as auxiliary agents in cancer chemotherapy. Key Words: polyphenolic plant extracts, antitumor effect, cancer therapy