A BENZIMIDAZOLE DERIVATIVE AS AN EFFECTIVE ANTITUMOR AGENT IN TERMS OF SYNGENEIC LUNG TUMORS AND MELANOMA TREATMENT Текст научной статьи по специальности «Биотехнологии в медицине»

South Russian Journal of Cancer 2022, Vol.3, No. 1, P. 15-21 https://doi.org/10.37748/2686-9039-2022-3-1-2 ORIGINAL ARTICLE

A BENZIMIDAZOLE DERIVATIVE AS AN EFFECTIVE ANTITUMOR AGENT IN TERMS OF SYNGENEIC LUNG TUMORS AND MELANOMA TREATMENT

E. F. Komarova1'20, A. S. Morkovnik3, O. N. Zhukovskaya3, E. V. Verenikina1, N. A. Shevchenko1, D. V. Khodakova1, L. Z. Kurbanova1, M. V. Mindar1, E. V. Zaikina1, A. V. Galina1

1. National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation

2. Rostov State Medical University, Rostov-on-don, Russian Federation

3. Institute of Physical and Organic Chemistry at Southern Federal University, Rostov-on-don, Russian Federation E katitako@gmail.com

ABSTRACT

Purpose of the study. Evaluation of the effect of the benzimidazole derivative dihydrobromide-2-(3,4-dihydroxyphenyl)-9-diethylamino-ethylimidazo-[1,2-a] benzimidazole (RU-185) on the growth of Lewis lung epidermoid carcinoma and B16-F10 melanoma when administered intragastrically.

Materials and methods. For the experiment, we used female C57Bl/6j mice, which were inoculated subcutaneously with syngeneic tumors: Lewis lung carcinoma (LLC) and B16-F10 melanoma. RU-185 was administered intragastrically to animals in a volume of 0.3 ml for 10 days, 1 time per day. For both tumors, depending on single doses of the substance for administration, groups were divided: 1 st and 4th - 50 mg/kg, 2nd and 5th - 220 and 3rd and 6th - 500 mg/kg. The control groups were injected intragastrically with physiological saline in the same volumes and according to the same scheme. The following parameters were assessed: tumor volume, increase in life expectancy (T/S, %) and tumor growth inhibition index (TGI, %). Results. For animals with LLC in the 2nd group there is an increase in the indicator of life expectancy (T/S 162.3 %), and in the 3rd group there is a tendency to an increase in the T/S indicator. On the 1st day after the end of treatment in the 2nd and 3rd groups TGI was 73.0 % and 30.1 %, respectively (p < 0.05). On the 7th and 14th days after the end of the use of RU-185 in the 2nd and 3rd groups the volume of tumors is 3.5 and 1.4 times less (on the 7th day) and 2.3 and 1.3 times (on the 14th day), respectively than in the control group (p < 0.05). At a dose of 220 mg/kg, complete regression of LLC tumors was shown in 20 % of animals.

With the growth of B16-F10, the life expectancy of all groups did not differ. Intergroup differences in the dynamics of tumor growth are provided. Highlighted changes were found in the 5th group (on the 14th day after the end of the administration of RU-185, TGI was 48.7 %).

Conclusion. The investigated chemical substance dihydrobromide-2-(3,4-dihydroxyphenyl)-9-diethylamino-ethylimidazo-[1,2-a] benzimidazole showed antitumor efficacy against syngeneic tumors: Lewis lung epidermoid carcinoma and B16-F10 melanoma when administered intragastrically which leads to further testing of RU-185 as a potential drug for the treatment of malignant neoplasms.

Keywords:

dihydrobromide-2-(3,4-dihydroxyphenyl)-9-diethylamino-ethylimidazo-[1,2-a] benzimidazole, Lewis lung carcinoma, melanoma B16-F10, antitumor efficacy, intragastric administration

For correspondence:

Ekaterina F. Komarova - Dr. Sci. (Biol.), Professor of the RAS, Head of the Biomedicine Department (and Psychophysiology) Rostov State Medical University, Rostov-on-Don, Russian Federation; leading research fellow, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation.

Address: 29 Nakhichevansky lane, Rostov-on-don 344022, Russian Federation

Address: 63 14 line str., Rostov-on-Don 344037, Russian Federation

E-mail: katitako@gmail.com

ORCID: https://orcid.org/0000-0002-7553-6550

SPIN: 1094-3139, AuthorlD: 348709

ResearcherlD: T-4520-2019

Scopus AuthorID: 55890096600

Funding: this work was not funded.

Conflict of interest: authors report no conflict of interest.

For citation:

Komarova. E. F., Morkovnik A. S., Zhukovskaya O. N., Verenikina E. V., Shevchenko N. A., Khodakova D. V., Kurbanova L. Z., Mindar M. V., Zaikina E. V., Galina A. V. A benzimidazole derivative as an effective antitumor agent in terms of syngeneic lung tumors and melanoma treatment. South Russian Journal of Cancer. 2022; 3(1): 15-21. (In Russ.). https://doi.org/10.37748/2686-9039-2022-3-1-2.

The article was submitted 13.12.2021; approved after reviewing 27.01.2022; accepted for publication 14.03.2022.

© Komarova. E. F., Morkovnik A. S., Zhukovskaya O. N., Verenikina E. V., Shevchenko N. A., Khodakova D. V., Kurbanova L. Z., Mindar M. V., Zaikina E. V., Galina A. V., 2022

Южно-Российский онкологический журнал 2022, Т. 3, № 1, С. 15-21 https://doi.org/10.37748/2686-9039-2022-3-1-2 ОРИГИНАЛЬНАЯ СТАТЬЯ

ПРОИЗВОДНОЕ БЕНЗИМИДАЗОЛА КАК ЭФФЕКТИВНОЕ ПРОТИВООПУХОЛЕВОЕ СРЕДСТВО В ЛЕЧЕНИИ СИНГЕННЫХ ОПУХОЛЕЙ ЛЕГКОГО И МЕЛАНОМЫ

Е. Ф. Комарова123, А. С. Морковник3, О. Н. Жуковская3, Е. В. Вереникина1, Н. А. Шевченко1, Д. В. Ходакова1, Л. З. Курбанова1, М. В. Миндарь1, Е. В. Заикина1, А. В. Галина1

1. НМИЦ онкологии, г. Ростов-на-Дону, Российская Федерация

2. РостГМУ г. Ростов-на-Дону, Российская Федерация

3. НИИ ФОХ ЮФУ г. Ростов-на-Дону, Российская Федерация И katitako@gmail.com

РЕЗЮМЕ

Цель исследования. Оценка влияния производного бензимидазола дигидробромид-2-(3,4-дигидроксифенил)-9-диэтиламино-этилимидазо-[1,2-a] бензимидазола (РУ-185) на рост эпидермоидной карциномы легкого Льюиса и меланомы В16^10 при внутрижелудочном применении.

Материалы и методы. Для эксперимента использовали мышей линии C57Bl/6j самок, которым подкожно прививали сингенные опухоли: эпидермоидная карцинома легких Льюис (LLC) и меланома В16-Р10. РУ-185 вводили внутрижелу-дочно животным в объеме 0,3 мл в течении 10 дней 1 раз в сутки. Для обеих опухолей в зависимости от разовых доз субстанции для введения выделены группы: 1-я и 4-я - 50 мг/кг, 2-я и 5-я - 220 и 3-я и 6-я - 500 мг/кг. Контрольным группам внутрижелудочно вводили физиологический раствор в аналогичных объемах и по той же схеме. Оценивали показатели: объем опухоли, увеличение продолжительности жизни (Т/С, %) и индекс торможения роста опухоли (ТРО, %). Результаты. Для животных с LLC во 2-й группе отмечается увеличение показателя продолжительности жизни (Т/С 162,3 %), а в 3-й показана тенденция к повышению показателя Т/С. В 1-е сутки после окончания лечения во 2-й и 3-й группах ТРО составил 73,0 % и 30,1 % соответственно (р < 0,05). На 7-е и 14-е сутки после окончания применения РУ-185 во 2-й и 3-ей группах объемы опухолей меньше в 3,5 и 1,4 раза (на 7-е сутки) и 2,3 и 1,3 раза (на 14-е сутки) соответственно, чем в контрольной группе (р < 0,05). В дозе 220 мг/кг показана полная регрессия опухолей LLC у 20 % животных. При росте В16-F10 продолжительность жизни во всех группах не различалась. Показаны межгрупповые различия динамики роста опухоли. Выраженные изменения обнаружены в 5-й группе (на 14-е сутки после окончания введения РУ-185 ТРО составил 48,7 %).

Заключение. Исследованная химическая субстанция дигидробромид-2-(3,4-дигидроксифенил)-9-диэтиламино-этилимидазо-ПД-a] бензимидазола показала противоопухолевую эффективность в отношении сингенных опухолей: эпидермоидной карциномы легкого Льюиса и меланомы В16-F10 при внутрижелудочном введении, что обусловливает проведение дальнейших испытаний РУ-185 как потенциального препарата терапии злокачественных новообразований.

Ключевые слова:

дигидробромид-2-(3,4-дигидроксифенил)-9-диэтиламино-этилимидазо-[1,2-a] бензимидазола, эпидермоидная карцинома легких Льюиса, меланома В1б^10, противоопухолевая эффективность, внутрижелудочное введение

Для корреспонденции:

Комарова Екатерина Федоровна - д.б.н., профессор РАН, заведующая кафедрой биомедицины (и психофизиологии) ФГБОУ ВО «РостГМУ» Минздрава России, Ростов-на-Дону, Российская Федерация; ведущий научный сотрудник, ФГБУ «НМИЦ онкологии» Минздрава России, г. Ростов-на-Дону, Российская Федерация.

Адрес: 344022, Российская Федерация, г. Ростов-на-Дону, пер. Нахичеванский, д. 29

Адрес: 344037, Российская Федерация, г. Ростов-на-Дону, ул. 14-я линия, д. 63

E-mail: katitako@gmail.com

ORCID: https://orcid.org/0000-0002-7553-6550

SPIN: 1094-3139, AuthorlD: 348709

ResearcherlD: T-4520-2019

Scopus AuthorID: 55890096600

Финансирование: финансирование данной работы не проводилось. Конфликт интересов: авторы заявляют об отсутствии конфликта интересов.

Для цитирования:

Комарова Е. Ф., Морковник А. С., Жуковская О. Н., Вереникина Е. В., Шевченко Н. А., Ходакова Д. В., Курбанова Л. З., Миндарь М. В., Заикина Е. В., Галина А. В. Производное бензимидазола как эффективное противоопухолевое средство в лечении сингенных опухолей легкого и меланомы. Южно-Российский онкологический журнал. 2022; 3(1): 15-21. https://doi.org/10.37748/2686-9039-2022-3-1-2.

Статья поступила в редакцию 13.12.2021; одобрена после рецензирования 27.01.2022; принята к публикации 14.03.2022.

Южно-Российский онкологический журнал 2022, Т. 3, № 1, С. 15-21 Комарова Е. Ф.и, Морковник А. С., Жуковская О. Н., Вереникина Е. В., Шевченко Н. А., Ходакова Д. В., Курбанова Л. З., Миндар М. В., Заикина Е. В., Галина А. В. / Производное бензимидазола как эффективное противоопухолевое средство в лечении сингенных опухолей

легкого и меланомы

INTRODUCTION

The search for targets for the treatment of malignant neoplasms, despite numerous developments in modern oncology, is still relevant [1 -3]. The identified targets require the study of various means of influencing. Chemical substances, in particular benzim-idazole derivatives, can be useful and effective for therapeutic purposes in practical oncology.

By it's structure, benzimidazole is a heterocyclic compound in which benzene and imidazole rings are connected. The antitumor efficacy of imidazoles has long been known, some of which, for example, dacarbazine, temozolomide, zoledronic acid, mercap-topurine, nilotinib, tipifarnib, etc., are used in oncological practice in the treatment of various oncological diseases [4]. This antitumor effect of imidazoles is due to their ability to easily bind to protein molecules and destroy them, and in high concentrations directly inhibit the synthesis of the main components of the cell membrane [5].

The potential antitumor effect of benzimidazole is also due to the similarity of it's structure with natural nucleotides, and therefore cell DNA is an important target for them. Thus, triazolobenzimidazole is able to inhibit check point kinase 2, which plays an important role in the cell's response to DNA damage, and therefore has an antitumor effect [6]. The benzimidazole derivative 2-[(R)-2-Methylpyrrolidin-2-yl]-1H-benzimid-

azole-4-carboxamide can inhibit DNA repair by inhibiting poly (ADP-ribose) polymerase (PARP)-1 and -2 [7].

The effect of benzimidazole derivatives on the microtubule protein tubulin has been shown, in which it's polymerization and depolymerization are disrupted [8]. The inhibitor of p-tubulin is benzimidaz-ole-2-urea - it's cytotoxic effect against an extensive panel of tumor cells has been shown [9; 10]. The participation of some benzimidazole derivatives ben-zimidazole-4,7-diones in the activation of caspase-dependent apoptosis on the lung adenocarcinoma cell line was found [11].

The purpose of the study: to evaluate the effect of benzimidazole derivative dihydrobromide-2-(3,4-dihydroxyphenyl)-9-diethylamino-ethylimidazo-[1,2-a] benzimidazole (RU-185) on the growth of Lewis lung epidermoid carcinoma and melanoma B16-F10 with intragastric use.

MATERIALS AND METHODS

Mice of the C57Bl/6j female line weighing 20-22 grams were used for the experiment. The animals were obtained from the Andreevka vivarium of the FSBIC of biomedical technologies of FMABA Russia (Moscow region) with a veterinary certificate. The study was conducted according to the principles of humane treatment of animals in scientific research in accordance with the European Convention.

Table 1. Study design

Groups/ Number of animals Supplement drug Doses mg/kg V, ml ^ay of sup plementation Duration of supplementation

1st 12 mice 50

dihydrobromide-2-(3,4-

2"d 12 mice dW^^t d и 2 i 220

diethylaminoethylimidazo-[1,2-a]

LLC benzimidazole

3rd 12 mice 500

B16-F10

Control 12 mice

Normal saline

4th 12 mice

5th 12 mice

6th 12 mice

Control 1 12 mice

dihydrobromide-2-(3,4-dihydroxyphenyl)-9-diethylaminoethylimidazo-[1,2-al benzimidazole

Normal Saline

0.3 ml

i/g

10 days

50

220

500

Note: LLC - Lewis lung epidermoid carcinoma, B16-F10 - melanoma, I/g - intragastric.

South Russian journal of cancer 2022, Vol. 3, No. 1, P. 15-21

Komarova. E. F s., Morkovnik A. S., Zhukovskaya O. N., Verenikina E. V., Shevchenko N. A., Khodakova D. V., Kurbanova L. Z., Mindar M. V., Zaikina E. V., Galina A. V. A benzimidazole derivative as an effective antitumor agent in terms of syngeneic lung tumors and melanoma treatment

Syngenic tumors were used: Lewis epidermoid lung carcinoma (LLC) and melanoma B16-F10. The tumors were inoculated in mice subcutaneously in a standard way.

The design of the experiment is presented in Table 1. The investigated chemical substance di-hydrobromide 2-(3,4-dihydroxyphenyl)-9-diethyl-aminoethylimidazo-[1,2-a] benzimidazole (RU-185) (RF patent No. 2391979) was dissolved in saline solution and administered intragastrically to animals using a nasogastric probe in a volume of 0.3 ml. The mode of administration was 10 days daily, 1 time per day.

The choice of doses to study the antitumor effect is due to the value of the semi-lethal toxicity of LD50, which was determined with a single intragastric administration to outbred mice (LD50 was 1860.4 mg/kg) [12]. For both tumors, depending on single doses of the substance for administration, groups were divided: 1st and 4th - 50 mg/kg, 2nd and 5th - 220 and 3rd and 6th - 500 mg/kg. The

control groups, which consisted of animals with transplanted tumors B16-F10 and LLC, were intragastrically injected with saline solution in similar volumes and according to the same scheme. Both the surviving and fallen animals underwent necropsy within 2 hours after death.

The study of the antitumor activity of the substance was carried out in accordance with regulatory documents [13; 14], the following indicators were evaluated: tumor volume, increase in life expectancy (T/S, %), calculated as the ratio of the average life expectancy of animals subjected to therapy to control indicators, and the tumor growth inhibition index (TGI, %) was calculated.

The normality of the distribution of features was assessed using the Shapiro-Wilk and Kolmogorov-Smirnov criteria. Median and interquartile range were calculated for quantitative data. The statistical significance of the differences between the groups was assessed using the Mann-Whitney criterion, and in dynamics using the Wilcoxon criterion. The signifi-

Table 2. The impact of PY-185 on LLC and B16-F10 growth dynamics

Group number (Single ^/s % dose, mg/kg) ,

Tumor volume (cm3), Me [25-75] (TGI, %) The day after treatment termination

7 14

LLC

1st (50) 94.3 2.3 [1.9-2.7]2 8.6 [7.8-9.2]12 10.3 [9.9-10.9]2 (14.8)

2nd (220) 162.3 0.4 [0.2-0.7]12 (73.0) 2.1 [1.< 3-2.3]12 (70.0) 4.5 [4.1-5.0]12 (55.0) - 80 % abdomen 0 (100) - 20 % abdomen

3rd (500) 112.9 1.1 [0.8-1.4]12 (30.1) 5.2 [4. 3-5.5]12 (22.1) 7.4 [6.9-8.0]12 (28.6)

Control 0 1.6 [1.1-2.1] 6.7 [6.3-7.1] 9.8 [9.3-10.2]

B16-F10 Melanoma

4th (50) 96. 2 0.4 [0.1-0.9] 2.7 [2.3-3.1] 5.9 [5.3-6.1]

5th (220) 131.1 0.4 [0.2-0.7] 2.6 [2.3-2.9] (4) 2.4 [1.9-2.7]12 (48.7)

6th (500) 103.1 0.4 [0.1-0.9] 2.1 [1.8-2.4]2 (20.4) 4.5 [3.9-4.9]2 (4.5)

Control 0.3 [0.1-0.7] 2.7 [2.1-3.4] 4.7 [3.9-5.1]

Note: 1 - the differences are significant relative to the control (p < 0.05); 2 - the differences are significant relative to the subgroups of the experimental group (p < 0.05).

Южно-Российский онкологический журнал 2022, Т. 3, № 1, С. 15-21 Комарова Е. Ф.н, Морковник А. С., Жуковская О. Н., Вереникина Е. В., Шевченко Н. А., Ходакова Д. В., Курбанова Л. З., Миндар М. В., Заикина Е. В., Галина А. В. / Производное бензимидазола как эффективное противоопухолевое средство в лечении сингенных опухолей

легкого и меланомы

cance level for the methods used was set as p < 0.05. Statistical data processing was carried out using the STATISTICA 12.0 program.

RESEARCH RESULTS AND DISCUSSION

The use of RU-185 in tumor-bearing animals with LLC caused a change in life expectancy and tumor size in experimental groups (Table 2). Thus, it was found that when a single dose of 220 mg/ kg (group 2) was administered, an increase in life expectancy (T/S 162.3 %) was noted. In the group of animals administered a dose of 500 mg/ kg (group 3), a tendency to increase the T/S index was shown, which has insignificant differences with the animals of the control group. In group 1, the life expectancy indicator was reduced in comparison with the control.

The study of the growth dynamics of the subcutaneous tumor node LLC with the use of RU-185 revealed differences in the study groups. On the 1st day after the end of treatment in the 2nd and 3rd groups, the tumor growth inhibition index indicated a decrease in the size of the primary focus and amounted to 73.0 % and 30.1 %, respectively (p < 0.05) (Table 2). On the 7th and 14th days after the end of the use of RU-185 in the 2nd and 3rd groups, tumor volumes were statistically significantly less by 3.5 and 1.4 times (on the 7th day) and 2.3 and 1.3 times (on the 14th day), respectively, than in the control group (p < 0.05). When applying a dose of 220 mg/kg, a complete regression of LLC tumors was shown in 20 % of animals, which was confirmed by the results of necropsy. At the same time, there was a tendency to tumor growth in group 1, but no statistically significant differences were found in comparison with the control group.

When analyzing the study results of the subcutaneous melanoma B16-F10 growth, we've shown that the life expectancy of all experimental groups didn't differ from the control group (p > 0.05) (Table 2). The T/S index in tumor-bearing animals with melanoma B16-F10 when using RU-185 was 96.2, 131.1 and 103.1 %, respectively, in groups 4, 5 and 6.

Analysis of the dynamics of tumor growth in 16 showed intergroup differences. In the group with a single dose of RU-185 50 mg/kg, the administration of the substance did not affect the growth of the subcutaneous node, the tumor size indicators at all stages were similar to the control group. The

most pronounced changes were shown in the group with a single dose of 220 mg/kg. So, on the 14th day after the end of the administration of RU-185, the TGI index was 48.7 %, which indicates a decrease in tumor size compared to the control group (by 2 times at p < 0.05).

CONCLUSION

The studied chemical substance dihydrobromide-2-(3,4-dihydroxyphenyl)-9-diethylamino-ethylimidazo-[1,2-a] benzimidazole (RU-185) showed antitumor efficacy against syngenic transplantable tumors: Lewis lung epidermoid carcinoma and melanoma B16-F10. It was shown that with intragastric administration of the substance in a single dose of 220 mg/kg for 10 days, a significant decrease in the size of tumors was noted. In animals with melanoma B16-F10, a significant decrease in tumor volume occurs on the 14th day after the end of the administration of the substance. Unlike melanoma, in animals with epidermoid lung carcinoma at a dose of 220 mg/kg, RU-185 has a pronounced inhibition of the growth of the subcutaneous tumor node already on the first day after the end of the use of the substance.

We explain the differences in the effectiveness of the substance under study by the peculiarities of metabolic phenotypes of tumors. Metabolic phenotypes of melanoma demonstrate dynamism between glycolysis and oxidative phosphorylation, which gives an advantage in the survival of tumor cells and in the formation of chemoresistance [15; 16]. Moreover, simultaneous activation of both oxidative phosphorylation and glycolysis (metabolic symbiosis) is vital for the progression of melanoma [15; 16]. At the same time, the metabolism of lung cancer cells is characterized by the activation of glucose oxidation enzymes, which indicates it's glycolytic phenotype [17]. Along with the activation of glycolysis for lung cancer, an increase in the intensity of other glucose-related processes, such as gluconeogenesis, the tricarboxylic acid cycle, has been shown [17].

Thus, the revealed antitumor efficacy of dihyd-robromide-2-(3,4-dihydroxyphenyl)-9-diethylamino-ethylimidazo-[1,2-a] benzimidazole determines further testing of RU-185 as a potential drug for the treatment of malignant neoplasms. However, further studies are needed to identify the mechanism of it's antitumor action.

South Russian journal of cancer 2022, Vol. 3, No. 1, P. 15-21

Komarova. E. F s., Morkovnik A. S., Zhukovskaya O. N., Verenikina E. V., Shevchenko N. A., Khodakova D. V., Kurbanova L. Z., Mindar M. V., Zaikina E. V., Galina A. V. A benzimidazole derivative as an effective antitumor agent in terms of syngeneic lung tumors and melanoma treatment

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Information about authors:

Ekaterina F. Komarova h - Dr. Sci. (Biol.), Professor of the RAS, Head of the Biomedicine Department (and Psychophysiology), Rostov State Medical University, Rostov-on-Don, Russian Federation; leading research fellow, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0002-7553-6550, SPIN: 1094-3139, AuthorID: 348709, ResearcherID: T-4520-2019, Scopus AuthorID: 55890096600

Anatolii S. Morkovnik - Dr. Sci. (Chem.), chief research fellow, Head of the Laboratory of Organic Synthesis of the Institute of Physical and Organic Chemistry at Southern Federal University, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0002-9182-6101, SPIN: 5481-1540, AuthorID: 147421, ResearcherID: A-6380-2016, Scopus Author ID: 6507212943

Olga N. Zhukovskaya - Cand. Sci. (Chem.), senior research fellow at the Institute of Physical and Organic Chemistry at Southern Federal University, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0003-2485-2139, SPIN: 1923-4580, AuthorID: 1057560, ResearcherID: R-3988-2016, Scopus Author ID: 16485855000

Ekaterina V. Verenikina - Cand. Sci. (Med.), head of the oncogynecological department National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0002-1084-5176, SPIN: 6610-7824, AuthorID: 734269, Scopus Author ID: 57194271506

Natalya A. Shevchenko - PhD student, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID:

https://orcid.org/0000-0003-2616-0953, SPIN: 2748-2638, AuthorID: 735424

Darya V. Khodakova - junior research fellow, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0003-3753-4463, SPIN: 8718-3983, AuthorID: 1056414

Южно-Российский онкологический журнал 2022, Т. 3, № 1, С. 15-21 Комарова Е. Ф.И, Морковник А. С., Жуковская О. Н., Вереникина Е. В., Шевченко Н. А., Ходакова Д. В., Курбанова Л. З., Миндар М. В., Заикина Е. В., Галина А. В. / Производное бензимидазола как эффективное противоопухолевое средство в лечении сингенных опухолей

легкого и меланомы

Luiza Z. Kurbanova - junior research fellow, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0003-3436-1325, SPIN: 9060-4853, AuthorlD: 1020533

Mariya V. Mindar - junior research fellow, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0001-8734-9210, SPIN: 5148-0830, AuthorID: 1032029

Ekaterina V. Zaikina - junior research fellow, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0003-0088-2990, SPIN: 4000-4369, AuthorID: 1045258

Anastasiya V. Galina - junior research fellow, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation. ORCID: https://orcid.org/0000-0001-7823-3865, SPIN: 9171-4476, AuthorID: 1071933

Contribution of the authors:

Komarova E. F. - research concept and design, text writing, scientific editing, material processing, data analysis and interpretation, article preparation;

Morkovnik A. S. - substance synthesis, text writing, scientific editing, material processing, data analysis and interpretation;

Zhukovskaya O. N. - substance synthesis, data analysis and interpretation;

Verenikina E. V. - research concept and design, text writing, scientific editing;

Shevchenko N. A. - statistical processing of the results, preparation of the article;

Khodakova D. V. - working with animals, material processing;

Kurbanova L. Z. - working with animals, working with literature;

Mindar M. V. - working with animals, material processing;

Zaikina E. V. - working with literature, preparing an article;

Galina A. V - working with animals, technical editing.