THE CHANGES OF NO LEVEL AND RNase ACTIVITY IN TUMOR TISSUE ACCOMPANYING THE PROGRESSION OF PROSTATE CANCER

Authors

  • А.P. Burlaka R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology
  • S.V. Virko V.E. Lashkaryov Institute of Semiconductor Physics
  • V.M. Grygorenko Institute of Urology of the National Academy of Medical Sciences of Ukraine
  • O.A. Samoylenko R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology
  • A.V. Verbinenko R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology
  • V.O. Shlyakhovenko R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology

DOI:

https://doi.org/10.32471/exp-oncology.2312-8852.vol-44-no-2.17785

Keywords:

intraepithelial neoplasia, NO-synthase, prostate cancer, RNase

Abstract

Aim: To assess the inducible NO-synthase activity and the total RNase activity in tissue samples and blood neutrophils of the patients with prostate intraepithelial neoplasia (PIN) and prostate cancer (PCa) of different stages. Materials and Methods: NO level was measured in tumor tissue and neutrophils of patients with PIN and PCa of different stages by electron paramagnetic resonance using the spin traps technology. RNase activity in tumor tissue of patients with PIN and PCa was measured by the method of zymography. Results: We have found that NO levels in prostate tumor tissue were significantly higher than in the PIN and increased along with the disease progression. Analysis of NO level in neutrophils of the PCa patients demonstrated that the values were not dispersed and did not depend on the stage of disease. NO level in neutrophils of the PCa patients increased manifold as compared with that in healthy donors. At the same time, the RNase activity in the prostate tumor tissue gradually decreased with PCa progression. Conclusion: Activities of inducible NO-synthase and RNases change significantly with progression of PCa.

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Published

26.05.2023

How to Cite

Burlaka А., Virko, S., Grygorenko, V., Samoylenko, O., Verbinenko, A., & Shlyakhovenko, V. (2023). THE CHANGES OF NO LEVEL AND RNase ACTIVITY IN TUMOR TISSUE ACCOMPANYING THE PROGRESSION OF PROSTATE CANCER. Experimental Oncology, 44(2), 159–162. https://doi.org/10.32471/exp-oncology.2312-8852.vol-44-no-2.17785

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