Protective and Antitumor Effects of Oxidal and Pyrucet in Hamsters with Experimental Graffi Tumor

Abstract

The use of combination drug therapy instead of monotherapy is a new positive and promising approach in the treatment of cancer. Oxidal® and Pyrucet® are food supplements containing Methylene blue (USP), Caffeine (USP), Salicylic acid (USP) and Ethyl Acetoacetate and Ethyl Pyruvate respectively. The therapeutic significance of each of these compounds (their derivatives) is well established, but no data are available on their combined action in in vivo experimental tumor models. The aim of the present study was to investigate the in vivo protective effect of mono- and combined experimental therapy with dietary supplements Oxidal® and Pyrucet® in the Graffi myeloid tumor model in hamsters. For this purpose, the two drugs were administered alone or in combination in two treatment regimens - prophylactic (before) and therapeutic (simultaneously) with the transplantation of Graffi tumor cells. The protective effect was determined by the biometric parameters of tumor growth (transplantability, tumor size, mortality, mean survival time, survival rate) recorded during the experiment. The results showed a favorable effect of both drugs, administered alone or in combination, before and simultaneously with the transplantation of tumor cells on the appearance and development of Graffi tumor in hamsters. About 2-fold lower transplantability, prolongation of the latency period by 7 days, inhibition of tumor growth till 30thday of experiments, reduced mortality and increased individual and overall survival time between 7 to 10 days were observed in the Graffi tumor-bearing hamsters with experimental therapy compared to control-Graffi tumor-bearing hamsters, without therapy. The obtained data revealed that Oxidal® and Pyrucet® could be a promising candidate for the treatment of tumor diseases.