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Uspalenko NI, Mosentsov AA, Khmil NV, Pavlik LL, Belosludtseva NV, Khunderyakova NV, Shigaeva MI, Medvedeva VP, Malkov AE, Kitchigina VF, Mironova GD. Uridine as a Regulator of Functional and Ultrastructural Changes in the Brain of Rats in a Model of 6-OHDA-Induced Parkinson's Disease. Int J Mol Sci 2023; 24:14304. [PMID: 37762607 PMCID: PMC10531918 DOI: 10.3390/ijms241814304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/29/2023] Open
Abstract
Using a model of Parkinson's disease (PD) induced by the bilateral injection of neurotoxin 6-hydroxydopamine (6-OHDA) into rat brain substantia nigra (SN), we showed uridine to exert a protective effect associated with activation of the mitochondrial ATP-dependent potassium (mitoK-ATP) channel. Injection of 4 µg neurotoxin evoked a 70% decrease in the time the experimental animal spent on the rod in the RotaRod test, an increase in the amount of lipid peroxides in blood serum and cerebral-cortex mitochondria and the rate of reactive oxygen species formation, and a decrease in Ca2+ retention in mitochondria. Herewith, lymphocytes featured an increase in the activity of lactate dehydrogenase, a cytosolic enzyme of glycolysis, without changes in succinate-dehydrogenase activity. Structural changes occurring in the SN and striatum manifested themselves in the destruction of mitochondria, degeneration of neurons and synapses, and stratification of myelin sheaths in them. Subcutaneous injections of 30 µg/kg uridine for 22 days restored the neurotoxin-induced changes in these parameters to levels close to the control. 5-Hydroxydecanoate (5 mg/kg), a specific mitoK-ATP channel inhibitor, eliminated the beneficial effect of uridine for almost all characteristics tested, indicating the involvement of the mitoK-ATP channel in the protective effect of uridine. The mechanism of the protective effect of uridine and its therapeutic applications for the prevention and treatment of PD are discussed.
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Affiliation(s)
- Nina I. Uspalenko
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
- Pushchino State Natural Science Institute, Pushchino 142290, Russia
| | - Alexei A. Mosentsov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
| | - Natalia V. Khmil
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
| | - Lyubov L. Pavlik
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
| | - Natalia V. Belosludtseva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
- Pushchino State Natural Science Institute, Pushchino 142290, Russia
| | - Natalia V. Khunderyakova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
- Pushchino State Natural Science Institute, Pushchino 142290, Russia
| | - Maria I. Shigaeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
| | - Vasilisa P. Medvedeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
- Pushchino State Natural Science Institute, Pushchino 142290, Russia
| | - Anton E. Malkov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
| | - Valentina F. Kitchigina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
| | - Galina D. Mironova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia; (N.I.U.); (A.A.M.); (N.V.K.); (L.L.P.); (N.V.B.); (N.V.K.); (M.I.S.); (V.P.M.); (A.E.M.); (V.F.K.)
- Pushchino State Natural Science Institute, Pushchino 142290, Russia
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Bobkova NV, Zhdanova DY, Belosludtseva NV, Penkov NV, Mironova GD. Intranasal administration of mitochondria improves spatial memory in olfactory bulbectomized mice. Exp Biol Med (Maywood) 2021; 247:416-425. [PMID: 34727745 DOI: 10.1177/15353702211056866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Here, we found that functionally active mitochondria isolated from the brain of NMRI donor mice and administrated intranasally to recipient mice penetrated the brain structures in a dose-dependent manner. The injected mitochondria labeled with the MitoTracker Red localized in different brain regions, including the neocortex and hippocampus, which are responsible for memory and affected by degeneration in patients with Alzheimer's disease. In behavioral experiments, intranasal microinjections of brain mitochondria of native NMRI mice improved spatial memory in the olfactory bulbectomized (OBX) mice with Alzheimer's type degeneration. Control OBX mice demonstrated loss of spatial memory tested in the Morris water maze. Immunocytochemical analysis revealed that allogeneic mitochondria colocalized with the markers of astrocytes and neurons in hippocampal cell culture. The results suggest that a non-invasive route intranasal administration of mitochondria may be a promising approach to the treatment of neurodegenerative diseases characterized, like Alzheimer's disease, by mitochondrial dysfunction.
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Affiliation(s)
- Natalia V Bobkova
- Institute of Cell Biophysics of the Russian Academy of Sciences-Federal Research Center, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Daria Y Zhdanova
- Institute of Cell Biophysics of the Russian Academy of Sciences-Federal Research Center, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Natalia V Belosludtseva
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Nikita V Penkov
- Institute of Cell Biophysics of the Russian Academy of Sciences-Federal Research Center, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Galina D Mironova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
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