Affiliation:
1. M. Gorky Donetsk National Medical University
Abstract
Aim: to study changes in the activities of purine nucleotide degradation enzymes – adenosine deaminase (ADA) and xanthine oxidase (XO) in patients with rectum cancer (RC).Material and Methods. The activity of purine nucleotide degradation enzymes was studied in blood plasma and tissue homogenates: tumor tissue and normal rectal mucosa in 70 patients with stage I–IV RC. The histological type of RC was adenocarcinoma. The levels of ADA and XO activities were measured using spectrophotometry.Results. The activity of ADA and XO in blood serum of RC patients was significantly higher than that of healthy people. A significant increase in the activity of ADA and XO in tumor tissue compared to normal tissue was also found. The relationship between the activities of the enzymes of purine catabolism in blood plasma and tissues were revealed. An increase in purine catabolism depending on the stage of RC was found.Conclusion. The increased ADA and XO activities indicated the enhanced purine catabolism not only in malignant transformation, but also in tumor progression.
Publisher
Tomsk Cancer Research Institute
Reference17 articles.
1. Kaprin A.D., Starinsky V.V., Shakhzadova A.O. Cancer incidence and mortality in Russia in 2019. Moscow, 2020. 252 p. (in Russian).
2. Cancer. World Health Organization (in Russian)]. [Internet]. URL: https://www.who.int/ru/news-room/fact-sheets/detail/cancer. [cited 2022 Apr 1.
3. Dubovichenko D.M., Valkov M.Y., Merabishvili V.M., Karpunov A.A., Scherbakov A.M., Valkova L.E., Pankratyeva A.Y. Epidemiological characteristic of survival in rectal cancer: a literature review and the results of own research. Problems in Oncology. 2020; 66(1): 36–41. (in Russian). doi: 10.37469/0507-3758-2020-66-1-36-41.
4. Kaprin A.D., Gameeva E.V., Polyakov A.A., Kornietskaya A.L., Rubtsova N.A., Fedenko A.A. Impact of the COVID-19 pandemic on the oncological practice. Siberian Journal of Oncology. 2020; 19(3): 5–22. (in Russian). doi: 10.21294/1814-4861-2020-19-3-5-22.
5. Siegel R.L., Miller K.D., Jemal A. Cancer statistics, 2020. CA Cancer J Clin. 2020; 70(1): 7–30. doi: 10.3322/caac.21590.