ПАРАМЕТРЫ ПОХОДКИ КРЫС С ПЕРИФЕРИЧЕСКОЙ НЕЙРОПАТИЕЙ ПРИ ТРАНСПЛАНТАЦИИ МЕЗЕНХИМАЛЬНЫХ СТВОЛОВЫХ КЛЕТОК И ФАРМАКОЛОГИЧЕСКОЙ СТИМУЛЯЦИИ КАННАБИНОИДНЫХ РЕЦЕПТОРОВ II ТИПА

Abstract

Background. The study of the role of cannabinoid CB2 receptors in the effectiveness of adipose-derived (AD) mesenchymal stem cells (MSCs) in preventing motor activity disorders in the affected limb will deepen understanding of the mechanisms of MSCs effects when administered locally. Aim. To evaluate the effect of pharmacological stimulation of cannabinoid CB2 receptors during transplantation of AD MSCs on changes in gait parameters in rats in a model of peripheral neuropathy. Material and methods. In 40 male Wistar rats peripheral neuropathic pain was modeled by sciatic nerve transection. On the 7th day after NP modeling, AD MSCs transplantation was performed without additional interventions upon the pharmacological stimulation of CB2 receptors in the area of sciatic nerve transection, as well as after stimulation of CB2 receptors on the AD MSCs membranes during pretreatment. Within 90 days a detailed analysis of the gait was carried out using the CatWalk XT 10.6. Results. Transplantation of AD MSCs accelerated the recovery of dynamic gait parameters, as well as sciatic functional index, and abolished the development of static gait disturbances in rats after sciatic nerve transection. Significant differences in the analyzed gait parameters in the study groups with AD MSCs transplantation were not found. Conclusion. Pharmacological stimulation of CB2 receptors did not enhance or suppress the effect of AD MSCs on the rate of recovery of gait parameters in experimental animals.