South Russian Journal of Cancer最新文献

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New method of modified chemoradiotherapy for cancer of the upper and middle ampullary rectum 改良放化疗治疗上、中壶腹直肠癌的新方法
South Russian Journal of Cancer Pub Date : 2023-04-13 DOI: 10.37748/2686-9039-2023-4-2-6
Y. Gevorkyan, N. Soldatkina, M. N. Chernyak, M. Gusareva, O. Bondarenko, E. Dzhenkova, A. Dashkov, V. E. Kolesnikov, D. Petrov, R. E. Tolmakh, D. A. Savchenko
{"title":"New method of modified chemoradiotherapy for cancer of the upper and middle ampullary rectum","authors":"Y. Gevorkyan, N. Soldatkina, M. N. Chernyak, M. Gusareva, O. Bondarenko, E. Dzhenkova, A. Dashkov, V. E. Kolesnikov, D. Petrov, R. E. Tolmakh, D. A. Savchenko","doi":"10.37748/2686-9039-2023-4-2-6","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-2-6","url":null,"abstract":"The last decade is characterized by significant progress in the treatment of rectal cancer (reduction in the number of relapses to 5–6 % with the use of prolonged radiation therapy) before surgery. The greatest success has been achieved in the treatment of cancer of the lower ampulla of the rectum, when it is possible to develop a complete clinical response of the rectal tumor to chemoradiotherapy. Nevertheless, the requirement issues to improve the results of treatment of cancer of the upper and middle ampullar rectum with an increase in the survival of patients remain. Which makes it relevant to develop new methods, that increase the effectiveness of the treatment of rectal cancer.The method of modified chemoradiotherapy for cancer of the upper ampulla of the rectum was developed in our study. The method is as follows: at the first stage, one day before the start of radiation therapy, the patient undergoes superselective catheterization of the superior rectal artery through the radial or femoral artery, followed by regional administration of radiomodifying chemotherapy drugs: cisplatin 50 mg and fluorouracil 500 mg. In one day, patients begin to undergo a course of conformal remote large- fraction radiation therapy to the primary focus and metastasis pathways for 5 sessions with a single focal dose of 5 Gy to a total focal dose of 25 Gy using a low-energy linear accelerator. During the entire course of radiation therapy, fluorouracil 500 mg is administered daily intravenously for 30 minutes in 30 minutes before the session. Surgical intervention with the sampling of material for research is carried out 6–8 weeks after the radiation therapy is completed. To assess the effectiveness of the modified chemoradiotherapy, the stage of tumor regression was determined according to the RECIST scale, and the level of therapeutic pathomorphology of the tumor according to Dworak was determined during a morphological study of the rectal tumor removed during the operation.The developed method of modified chemoradiotherapy makes it possible to achieve regression of the rectal tumor in a short time, reduce the time and increase the effectiveness of treatment. The method of modified chemoradiotherapy is intended for patients with cancer of the upper and middle ampullar rectum T3-4N0-2M0, for whom radiation therapy is indicated as the first stage of treatment, after which resection of the rectum is performed in a standard volume.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82619355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monograph review by Kit O. I., Shaposhnikov A. V. "General carcinogenesis. Exogenous tumorogenic effects" Kit O. I. Shaposhnikov A. V.的专著综述。“一般的致癌作用。外源性致瘤效应”
South Russian Journal of Cancer Pub Date : 2023-03-04 DOI: 10.37748/2686-9039-2023-4-1-9
A. Abrosimov
{"title":"Monograph review by Kit O. I., Shaposhnikov A. V. \"General carcinogenesis. Exogenous tumorogenic effects\"","authors":"A. Abrosimov","doi":"10.37748/2686-9039-2023-4-1-9","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-1-9","url":null,"abstract":"The second part of a three-component work on gen- eral carcinogenesis has been published. The first part (2021) deploys modern theories, models of general carcinogenesis: mutation theory, models of genomic instability, Darwinian and non-genotoxic models, and also explains the roles of inflammation, immunological devi- ations and tumor microenvironment in carcinogenesis.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72967915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Major and minor populations of lymphocytes: local features in different stages of colon cancer 淋巴细胞的主要和次要群体:不同阶段结肠癌的局部特征
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/10.37748/2686-9039-2023-4-1-4
A. B. Sagakyants, E. Dzhenkova, E. Mirzoyan, I. Novikova, E. Zlatnik, E. Bondarenko, A. Shaposhnikov, A. Maslov, O. Y. Kaymakchi, Y. Przhedetskiy, A. N. Shevchenko
{"title":"Major and minor populations of lymphocytes: local features in different stages of colon cancer","authors":"A. B. Sagakyants, E. Dzhenkova, E. Mirzoyan, I. Novikova, E. Zlatnik, E. Bondarenko, A. Shaposhnikov, A. Maslov, O. Y. Kaymakchi, Y. Przhedetskiy, A. N. Shevchenko","doi":"10.37748/10.37748/2686-9039-2023-4-1-4","DOIUrl":"https://doi.org/10.37748/10.37748/2686-9039-2023-4-1-4","url":null,"abstract":"","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80410245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic assessment of intraperitoneal aerosol chemotherapy under pressure impact on peritoneal carcinomatosis in ovarian cancer (immediate results) 压力作用下腹腔雾化化疗治疗卵巢癌腹膜癌的动态评价(即时结果)
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/2686-9039-2023-4-1-5
A. Dzasokhov, A. Kostin, V. Astashov, M. Andreev, A. V. Turiev, A. Uskov
{"title":"Dynamic assessment of intraperitoneal aerosol chemotherapy under pressure impact on peritoneal carcinomatosis in ovarian cancer (immediate results)","authors":"A. Dzasokhov, A. Kostin, V. Astashov, M. Andreev, A. V. Turiev, A. Uskov","doi":"10.37748/2686-9039-2023-4-1-5","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-1-5","url":null,"abstract":"Purpose of the study. Dynamic assessment of the direct impact of pressurized intraperitoneal aerosol chemotherapy (PIPAC) on peritoneal carcinomatosis in ovarian cancer.Patients and methods. The study involved 164 people with visually detectable and morphologically verified ovarian cancer with peritoneal carcinomatosis of the peritoneum (IIIb-IIIc stages of ovarian cancer). All patients underwent combined treatment of ovarian cancer, which included primary cytoreduction and 6 courses of сhemotherapy according to the TC scheme. In the main group, the standard treatment was supplemented with 3 sessions of PIPAC. Statistical processing was carried out by analyzing the exact criterion of the Wilcoxon-Mann-Whitney sums, the distribution of patients in groups by age and peritoneal lesion was estimated. It was found that the distribution of the analyzed parameters was random. The distribution in the groups by stages of the disease was homogeneous, which is justified by the use of the Barnard criterion. The dynamics of the parameters of the study was evaluated by the methods of basic statistics. Used software packages: MedCals, Statistica.Results. The results obtained demonstrate a distinct positive dynamics in the group of patients receiving PIPAC in addition to standard treatment of newly diagnosed ovarian cancer: a significant decrease in the peritoneal cancer index, therapeutic pathomorphosis in peritoneal samples during treatment, reduction of ascites.Conclusion. The team of authors managed to establish that PIPAC simultaneously with standard combined treatment for newly diagnosed ovarian cancer with peritoneal carcinomatosis makes it possible to achieve a dynamic regression effect of peritoneal carcinomatosis of the peritoneum, morphological regression of carcinomatosis and complete resorption of ascites in the vast majority of treated patients. The revealed therapeutic effect was prolonged and persistent with an objective assessment 6 months after the end of treatment.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88610937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal management of long-term air leakage after lung resections for cancer 肺癌肺切除术后长期漏气的最佳处理
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/2686-9039-2023-4-1-8
K. D. Iozefi, D. Kharagezov, Y. Lazutin, O. Stateshny, A. Milakin, I. Leyman, T. Ayrapetova, V. N. Vitkovskaya, M. A. Gappoeva, E. Mirzoyan, M. A. Khomidov, A. N. Shevchenko, S. Dimitriadi
{"title":"Optimal management of long-term air leakage after lung resections for cancer","authors":"K. D. Iozefi, D. Kharagezov, Y. Lazutin, O. Stateshny, A. Milakin, I. Leyman, T. Ayrapetova, V. N. Vitkovskaya, M. A. Gappoeva, E. Mirzoyan, M. A. Khomidov, A. N. Shevchenko, S. Dimitriadi","doi":"10.37748/2686-9039-2023-4-1-8","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-1-8","url":null,"abstract":"Lung resection is the main diagnostic and therapeutic surgical intervention in terms of lung cancer management. Air leak through pleural drains often occurs after lung resections due to damage to the pulmonary parenchyma. Therefore, proper drainage of the pleural cavity is very important for the successful outcome of the operation. The installation of a single pleural drainage after anatomical resection, the refusal to use vacuum aspiration and the earliest possible removal of drains contribute to the rapid activation of patients in the postoperative period. Prolonged air leakage (PAL) after lung resection, on average, develops in 15 % of lung cancer patients, remaining one of the most common complications adversely affecting the rehabilitation of patients and leading to delayed discharge from the hospital. The incidence of empyema with prolonged air leakage is 10.4 % with air discharge for more than 7 days compared to 1 % with air leaks less than or equal to 7 days. PAL requires prolonged drainage of the pleural cavity, which increases postoperative pain, causing shallow breathing, difficulty coughing leads to an increased risk of pneumonia, decreased mobility is accompanied by a high risk of thromboembolic complications. In addition, the treatment of complications is associated with the need to perform additional invasive interventions such as chemical or mechanical pleurodesis. Prolonged air leakage is associated with an increase in hospital mortality. Patients with an air leak have a 3.4 times greater risk of death than patients without it. Active tactics in relation to PAL include preoperative prediction of a high risk of complications, intraoperative measures to prevent air leak from the lung parenchyma and postoperative treatment to reduce the duration of PAL. The urgency of the problem is due to the fact that prolonged air leakage in patients with lung cancer after organ-preserving operations is associated with an increased risk of infectious complications due to the need for prolonged drainage of the pleural cavity. In this review, the main attention is paid to two components of postoperative management of PAL: diagnosis with an accurate assessment of the intensity of air leak and treatment of alveolar-pleural fistulas.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90918029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular features of malignant gastric tumors 胃恶性肿瘤的分子特征
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/2686-9039-2023-4-1-7
Yuriy A. Gevorkyan, A. Dashkov, N. Soldatkina, V. E. Kolesnikov, N. Timoshkina, D. S. Krutilin, О. К. Bondarenko
{"title":"Molecular features of malignant gastric tumors","authors":"Yuriy A. Gevorkyan, A. Dashkov, N. Soldatkina, V. E. Kolesnikov, N. Timoshkina, D. S. Krutilin, О. К. Bondarenko","doi":"10.37748/2686-9039-2023-4-1-7","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-1-7","url":null,"abstract":"Gastric cancer is one of the most widespread cancers and makes a significant contribution to the global mortality rate from malignant neoplasms. The late onset of clinical symptoms is the main reason why the disease is often diagnosed at an advanced stage, and this limits the available therapeutic approaches. Despite the fact, that extensive studies have been carried out to identify the mechanisms and markers of the development and progression of the disease, their results are currently not fully included in clinical practice. As a consequence, only marginal improvement in long-term survival has been achieved and patient prognosis remains poor. Understanding the molecular genetic features of gastric malignant tumors can provide insight into their pathogenesis, help identify new biomarkers for prognosis and diagnosis, and identify new therapeutic targets. In recent decades, advances in high throughput sequencing technologies have improved understanding of the molecular genetic aspects of gastric cancer. This review considers molecular level changes, including information on tumor suppressor genes, oncogenes, cell cycle and apoptosis regulators, cell adhesion molecules, loss of heterozygosity, micro-satellite instability and epigenetic aberrations (change in methylation level and modification of histones). The review is also devoted to the molecular aspects of pathogenesis – changes in the signaling pathways involved in the gastric cancer development; the classification of sporadic and hereditary gastric cancer at the molecular genetic level is considered. The characteristics and classification of GC presented in this review at the genetic and epigenetic levels confirms that this disease is heterogeneous. These data can be used both to develop and test potential markers and new targeted therapeutic approaches.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79830831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Influence of induced diabetes mellitus on hormonal profile of Lewis lung carcinoma in BALB/c Nude mice 诱导糖尿病对BALB/c裸小鼠Lewis肺癌激素谱的影响
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/2686-9039-2023-4-1-2
E. Frantsiyants, V. Bandovkina, I. Kaplieva, A. Shikhlyarova, E. Surikova, I. Neskubina, Y. Pogorelova, L. Trepitaki, N. Cheryarina
{"title":"Influence of induced diabetes mellitus on hormonal profile of Lewis lung carcinoma in BALB/c Nude mice","authors":"E. Frantsiyants, V. Bandovkina, I. Kaplieva, A. Shikhlyarova, E. Surikova, I. Neskubina, Y. Pogorelova, L. Trepitaki, N. Cheryarina","doi":"10.37748/2686-9039-2023-4-1-2","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-1-2","url":null,"abstract":"Purpose of the study. The assessment of diabetes mellitus (DM) effect on levels of sex hormones in tumor and peritumoral tissues in BALB/c Nude mice with Lewis lung carcinoma (LLC).Materials and methods. The study included 42 male and female BALB/c Nude mice aged 8–9 weeks weighing 21–22 g. Alloxan-induced DM was reproduced in mice of the main group, and then LLC was transplanted. Levels of estrone (E1), estradiol (E2), testosterone (T), progesterone (P4) and prolactin (PRL), as well as steroid hormone receptors: estrogens (REα, REβ), androgens (RA), and progesterone (RP4) were measured by RIA and ELISA in samples of tumor and peritumoral tissues. Animals with LLC without DM were used as controls. The statistical analysis was performed using the Statistica 10 program; differences were considered significant at p < 0.05.Results. DM in males was reproduced only after a double injection of alloxan, and was characterized by lower blood glucose levels compared to females. The growth of LLC in animals with alloxan-induced DM was possible only in female BALB/c Nude mice; in BALB/c Nude males, the tumor could not be transplanted either independently or in combination with DM. Females in the main group showed greater average tumor volumes throughout the experiment and reduced survival, compared to the control group. Tumor samples from females with LLC+DM were more saturated with sex steroids, but depleted in steroid hormone receptors, which probably contributed to the ability to avoid the body's regulatory signals.Conclusion. The growth of LLC in presence of induced DM was sex-dependent, since the tumor could not be transplanted to male mice. DM affected the levels of sex steroids and their receptors tumor tissues in female BALB/c Nude mice.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80698661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Indices of insulin-like growth factors family in the lung tissue of patients with non-small cell lung cancer after COVID-19 of various severity 不同严重程度非小细胞肺癌患者新冠肺炎后肺组织胰岛素样生长因子家族指标
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/2686-9039-2023-4-1-3
O. Kit, E. Frantsiyants, D. Kharagezov, V. Bandovkina, N. Cheryarina, Y. Pogorelova, Y. Lazutin, A. Milakin, I. Leyman, O. Stateshny
{"title":"Indices of insulin-like growth factors family in the lung tissue of patients with non-small cell lung cancer after COVID-19 of various severity","authors":"O. Kit, E. Frantsiyants, D. Kharagezov, V. Bandovkina, N. Cheryarina, Y. Pogorelova, Y. Lazutin, A. Milakin, I. Leyman, O. Stateshny","doi":"10.37748/2686-9039-2023-4-1-3","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-1-3","url":null,"abstract":"Purpose of the study. An analysis of levels of IGF and their carrying proteins in lung tissues of cancer patients depending on the severity of the previous COVID-19 infection.Patients and methods. The study included 60 patients with histologically verified non-small cell lung cancer (NSCLC) T1–3NхM0 receiving treatment at the Thoracic Department, National Medical Research Centre for Oncology, in 2020–2021. The control group included 30 NSCLC patients after asymptomatic or mild COVID-19 disease (15 males and 15 females); the main group included 30 (15 men and 15 women) patients after severe or moderate to severe COVID-19 infection. The mean age of patients was 59.11 ± 2.89 years; no significant differences were noted between the control and main groups. All participants gave their informed consent prior to the study approved by the Ethics Committee of National Medical Research Centre for Oncology. Qualitative assessment of IGF-I, IGF-II and IGFBP-1,2,3 levels in the tissues of the tumor, peritumoral area and resection line were measured by ELISA (Mediagnost, Germany). The statistical analysis was performed in the Statistica 10 program, the differences were considered statistically significant at p < 0.05.Results. Regardless of the gender, levels of IGF-I and IGF-II in tumor and resection line samples in patients of the main group were higher than in the control group on average by 1.5–2.2 times, and IGFBP-1 in the tumor was lower by 1.3 times in men and by 5 times in women. The ratio of IGF and IGFBP-1-3 in patients of the control group in perifocal tissues changed towards the parameters in the tumor tissue. IGF/IGFBP-1-3 in men of the main group were lower or did not differ from the indices in the intact tissue, while in women they increased, similarly to the tumor tissue.Conclusion. An increase in the ratio of IGF and carrier proteins in the tumor tissue of patients in the main group indicated an excessive accumulation of IGF in it, which may contribute to more aggressive growth of malignant tumors. The most pronounced disorders in the system of insulin-like growth factors were found in the tissues of the tumor and intact lung of patients with previous severe and moderate to severe COVID-19.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90219788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunohistochemical assessment of possible anticancer effect mechanisms of 2-(6,8-dimethyl-5-nitro-4-chloroquinoline-2-yl)- 5,6,7-trichloro-1,3-tropolone in PDX models of lung cancer 2-(6,8-二甲基-5-硝基-4-氯喹啉-2-基)- 5,6,7-三氯-1,3-tropolone对肺癌PDX模型可能的抗癌作用机制的免疫组化评价
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/2686-9039-2023-4-1-1
E. F. Komarova, E. Lukbanova, E. Dzhenkova, A. Goncharova, E. Zaikina, S. Gurova, A. V. Galina, L. K. Kurbanova, M. V. Mindar, D. Khodakova, M. S. Gusareva, M. Zinkovich
{"title":"Immunohistochemical assessment of possible anticancer effect mechanisms of 2-(6,8-dimethyl-5-nitro-4-chloroquinoline-2-yl)- 5,6,7-trichloro-1,3-tropolone in PDX models of lung cancer","authors":"E. F. Komarova, E. Lukbanova, E. Dzhenkova, A. Goncharova, E. Zaikina, S. Gurova, A. V. Galina, L. K. Kurbanova, M. V. Mindar, D. Khodakova, M. S. Gusareva, M. Zinkovich","doi":"10.37748/2686-9039-2023-4-1-1","DOIUrl":"https://doi.org/10.37748/2686-9039-2023-4-1-1","url":null,"abstract":"Purpose of the study. Evaluation of the expression of immunohistochemical tumor markers Ki-67, b-catenin, Bcl-2, P53, connexin 32 and connexin 43 when using 2-(6,8-dimethyl-5-nitro-4-chloroquinoline-2-yl)-5,6,7-trichloro-1,3-tropolone in mice with xenographs of squamous cell lung cancer.Materials and methods. Subcutaneous PDX models of human squamous cell lung cancer were created in immunodeficient BALB/c Nude mice. A fragment of the patient’s tumor (3 × 3 × 3 mm) was implanted subcutaneously in the right thigh of a previously anesthetized mouse. 200 μl of 2-(6,8-dimethyl-5-nitro-4-chloroquinoline-2-yl)-5,6,7-trichloro-1,3-tropolone was administered orally using a probe in 12 doses once every 3 days. All animals were divided into groups depending on the tropolone doses: experimental groups 2–5 with doses of 0.0055, 0.055, 0.55 and 2.75 mg/g, respectively. The control group received 1 % starch gel which was tropolone carrier. The animals were euthanized 36 days after the start of the substance administration, and the tumor tissue was isolated and prepared for the IHC study according to the standard protocol. IHC reactions were performed using antibodies for Ki-67, b-catenin, Bcl-2, P53, connexin 32 and connexin 43.Results. Higher tropolone doses were associated with decreased expression of Ki-67, b-catenin, and the Bcl-2 protein, but increased expression of the P53 protein. The dosage of tropolone and expression of connexin 43 were directly proportional.Conclusion. Immunohistochemical analysis of expression of proteins in PDX models of human squamous cell lung cancer when using 2-(6,8-dimethyl-5-nitro-4-chloroquinoline-2-yl)-5,6,7-trichloro-1,3-tropolone showed the changes indicating its antitumor efficacy and suggesting a possible mechanism of action based on the activation of apoptosis.","PeriodicalId":22147,"journal":{"name":"South Russian Journal of Cancer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78881752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modern approaches to glioblastoma therapy 胶质母细胞瘤的现代治疗方法
South Russian Journal of Cancer Pub Date : 2023-02-01 DOI: 10.37748/2686-9039-2023-4-1-6
N. S. Kuznetsova, S. Gurova, A. Goncharova, E. Zaikina, M. Gusareva, M. Zinkovich
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