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• W3204268894 startingPage "175909142110448" @default.
• W3204268894 abstract "The present study examined the involvement of purinergic signaling components in the rat model of hippocampal degeneration induced by trimethyltin (TMT) intoxication (8 mg/kg, single intraperitoneal injection), which results in behavioral and neurological dysfunction similar to neurodegenerative disorders. We investigated spatial and temporal patterns of ecto-nucleoside triphosphate diphosphohydrolase 1 (NTPDase1/CD39) and ecto-5' nucleotidase (eN/CD73) activity, their cell-specific localization, and analyzed gene expression pattern and/or cellular localization of purinoreceptors and proinflammatory mediators associated with reactive glial cells. Our study demonstrated that all Iba1+ cells at the injured area, irrespective of their morphology, upregulated NTPDase1/CD39, while induction of eN/CD73 has been observed at amoeboid Iba1+ cells localized within the hippocampal neuronal layers with pronounced cell death. Marked induction of P2Y12R, P2Y6R, and P2X4-messenger RNA at the early stage of TMT-induced neurodegeneration might reflect the functional properties, migration, and chemotaxis of microglia, while induction of P2X7R at amoeboid cells probably modulates their phagocytic role. Reactive astrocytes expressed adenosine A1, A2A, and P2Y1 receptors, revealed induction of complement component C3, inducible nitric oxide synthase, nuclear factor-kB, and proinflammatory cytokines at the late stage of TMT-induced neurodegeneration. An increased set of purinergic system components on activated microglia (NTPDase1/CD39, eN/CD73, and P2X7) and astrocytes (A1R, A2AR, and P2Y1), and loss of homeostatic glial and neuronal purinergic pathways (P2Y12 and A1R) may shift purinergic signaling balance toward excitotoxicity and inflammation, thus favoring progression of pathological events. These findings may contribute to a better understanding of the involvement of purinergic signaling components in the progression of neurodegenerative disorders that could be target molecules for the development of novel therapies." @default.
• W3204268894 created "2021-10-11" @default.
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• W3204268894 date "2021-01-01" @default.
• W3204268894 modified "2023-09-27" @default.
• W3204268894 title "Microglial- and Astrocyte-Specific Expression of Purinergic Signaling Components and Inflammatory Mediators in the Rat Hippocampus During Trimethyltin-Induced Neurodegeneration" @default.
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• W3204268894 doi "https://doi.org/10.1177/17590914211044882" @default.
• W3204268894 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8495514" @default.
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• W3204268894 hasPublicationYear "2021" @default.
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