Synergic neurotoxic and paraneoplastic neurological syndrome during cysplatin chemotherapy in case of transplanted experimental rat lymphoma

Abstract

The aim of the study is assessment of combined effect of homotransplanted rat lymphoma (Pliss Lymphosrcoma) growth and antitumor therapy (cysplatin) upon the functioning of the nervous system was accomplished in 160 male Wistar rats, divided into four groups: intact animals, rats treated with cysplatin, rats with transplanted lymphoma, and rats with transplanted lymphoma that received cysplatin treatment. The neurologic deficiency degree as well as basic myelin protein peripheral blood level (nervous system impairment hematological marker) were comparatively assessed. Tumor development was accompanied with emergence and subsequent growth of neurologic deficit in locomotory, sensory and coordinative spheres as well as pronounced growth of basic myeline protein plasma level thus making this model a valid test-system for studying paraneoplastic neurologic syndrome. Cysplatin has produced a non-selective toxic effect upon the nervous system of the experimental animals within its therapeutic window range documented by neurotoxic syndrome. Subsequently along with elimination of cysplatin and its derivates from the organism, systemic neurotoxic effect intensity decreased and the nervous system functional state parameters returned to control values. Using cysplatin for the treatment of homotransplanted experimental rat lymphoma results in synergic neurotoxic and paraneoplastic neurological syndrome through combined injury of the nervous system.