FUNCTIONAL CHANGES IN PERIPHERAL PHAGOCYTES IN RATS WITH LPS-INDUCED PARKINSON'S DISEASE

Authors : Zhanna Oliynyk, Anastasiia Marynchenko, Mariya Rudyk, Taisa Dovbynchuk, Natalie Dzyubenko, Ganna Tolstanova

Pages : 73-78

Doi:10.22531/muglajsci.957174

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Publication Date : 2021-12-31

Article Type : Research

Abstract :Sustained neuroinflammation is considered to be a leading contributor to progressive neuron damage of the substantia nigra, leading to the development of Parkinson’s disease (PD). Systemic inflammation (SI) correlates with neuroinflammation as PD progresses, and exacerbates neurodegeneration. Phagocytes are key players in both neuroinflammation and SI. SI manifestation in commonly used animal models of PD is an unexplored question. LPS-induced PD is usually used for the study of the inflammation in the PD pathophysiology. The aim of this study was to examine metabolic profile of peripheral phagocytes in rats with LPS-induced PD. LPS-induced PD was accompanied by the neutrophilia, the decrease of circulating lymphocyte proportion, and as a result - by doubling the neutrophil-to-lymphocytes ratio. Reactive oxygen species generation was higher in circulating phagocytes from rats with PD (by 1.3 times in neutrophils and by more than 5 times - in monocytes) as compared to control animals. Wherein, phagocytic activity was lower in neutrophils by 1.2 times and in monocytes - by 2.6 times as compared to the control. These data indicate systemic inflammatory process in LPS lesioned rats. Thus, LPS-induced PD reproduces systemic inflammation spread, which is inherent for progressive PD.
Keywords : Parkinson, lipopolysaccharide, systemic inflammation, circulating phagocytes, reactive oxygen species, phagocytosis