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Functional activity of hippocampalneurons after short-term oxygen-glucose deprivation in vitro
I.V.Lushnikova.
A.A.Bogomoletz Institute of Physiology NASU,Kiev, Ukraine
Abstract
The deficiency of oxygen and glucose induces neuronal cell
damage and death through multiple cellular and molecular
mechanisms. The degree of the damage is thought to depend
on the intensity and duration of pathological event. In vivo and
in vitro experimental investigations have shown that short-term
oxygen-glucose deprivation (OGD) results in the delayed cell
destruction. It allows studying of the neurodegenerative mecha-
nisms induced by OGD for possible corrections. The aim of the
present study was to evaluate the morpho-functional changes
in cultured hippocampal neurons after short-term OGD followed
by reoxygenation during 1, 4 or 24 h. It is revealed that 20 min
OGD has no influence on the cell viability, but metabolic activ-
ity, synaptic quantity and activity are decreased at 1 h at 4 h
after OGD. These functional characteristics are normalized at
24h. The results expand a concept about different aspects of
hippocampal neurons injury under deficiency of oxygen and glu-
cose. A suggested experimental model could be used for testing
different neuroprotective tools.
References
- Гусев Е.И., Скворцова В.И. Ишемия головногомозга. – М.: Медицина, 2001. – 328 с.
- Винничук С.М., Черенько Т.М. Ишемическийинсульт: эволюция взглядов на стратегию лечения –К.: ООО Комполис, 2003. – 120 с.
- Bolay H., Gursoy-Ozdemir Y., Sara Y. et al. Persistentdefect in transmitter release and synapsin phosphoryla-tion in cerebral cortex after transient moderate ischemicinjury // Stroke. – 2002. – 33, № 5. – Р.1369–1375.
- Castillo P.E., Schoch S., Schmitz F. et al. RIM1alpha isrequired for presynaptic long-term potentiation // Na-ture. – 2002. – 415, № 6869. – Р.327–330.
- Genoud S., Pralong W., Riederer B.M. et al. Activity-dependent phosphorylation of SNAP-25 in hippocampalorganotypic cultures // J.Neurochem. – 1999. – 72,№ 4. – Р.1699–1706.
- Harata N., Ryan T., Smith S.et al. Visualizing recyclingsynaptic vesicles in hippocampal neurons by FM 1-43photoconversion // Proc. Natl. Acad. Sci. USA. – 2001. –98, № 22. – P.12748–12753.
- Janz R., Sьdhof T.C., Hammer R.E. et al. Essential rolesin synaptic plasticity for synaptogyrin I and synapto-physin I // Neuron. – 1999. – 24, № 3. – Р.687–700.
- Jourdain P., Nikonenko I., Alberi S. et al. Remodelingof hippocampal synaptic networks by a brief anoxia-hypoglycemia // J.Neurosci. – 2002. – 22, № 8. –Р.3108–3116.
- 9. Jung Y.J., Park S.J., Park J.S. et al. Glucose/oxygendeprivation induces the alteration of synapsin I andphosphosynapsin // Brain Res. – 2004. – 996, № 1. Р.47–54.
- 10. Kovalenko T., Osadchenko I., Nikonenko A. et al. Is-chemia-induced modifications in hippocampal CA1 stra-tum radiatum excitatory synapses // Hippocampus. –2006. – 16, № 10. – Р.814–825.
- Lipton P. Ischemic cell death in brain neurons // Physiol.Rev. – 1999. – 79, № 4. – P.1431–1568.
- Lukyanetz E.A., Shkryl V.M., Kravchuk O.V., KostyukP.G. Effect of hypoxia on calcium channels depends onextracellular calcium in CA1 hippocampal neurons //Brain Res. – 2003. – 980, № 1. – Р. 128–134.
- Lushnikova I.V., Voronin K., Malyarevskyy P.Y. et al.Morphological and functional changes in rat hippocam-pal slice cultures after short-term oxygen-glucose depri-vation // J.Cell Mol.Med. – 2004. – 8, № 2. – Р.241–248.
- Maar T., Rшnn L., Bock E. et al. Characterization ofmicrowell cultures of dissociated brain tissue for stud-ies of cell-cell interaction // J. Neurosci. Res. – 1997. –47, № 2. – P.163–172.
- Misonou H., Mohapatra D.P., Menegola M., TrimmerJ.S. Calcium- and metabolic state-dependent modula-tion of the voltage-dependent Kv2.1 channel regulatesneuronal excitability in response to ischemia // J. Neu-rosci. – 2005. – 25, № 48. –P.11184–11193.
- Nishimura H., Matsuyama T., Obata K. et al. Changesin mint1, a novel synaptic protein, after transient globalischemia in mouse hippocampus // J.Cereb.BloodFlow.Metab. – 2000. – 20, № 10. – Р.1437–1445.
- Ring G., Mezza R., Schwob J. Immunohistochemicalidentification of discrete subsets of rat olfactory neuronsand the glomeruli that they innervate // J. Comp. Neurol. –1997. – 388, № 3. – Р.415–434.
- Pozzo-Miller L.D., Gottschalk W., Zhang L. et al.Impairments in high-frequency transmission, synapticvesicle docking, and synaptic protein distribution in thehippocampus of BDNF knockout mice // J.Neurosci. –1999. – 19, № 12. – Р.4972–4983.
- 19. Priller C., Bauer T., Mitteregger G., Krebs B.,Kretzschmar H., Herms J. Synapse formation and func-tion is modulated by the amyloid precursor protein //Ibid. – 2006. – 26, № 27. – P.7212–7221.
- 20. Rizzoli S.O., Betz W.J. The structural organization ofthe readily releasable pool of synaptic vesicles // Sci-ence. – 2004. – 303, № 5666. – Р.2037–2039.
- Sudhof T.C. The synaptic vesicle cycle: a cascade ofprotein-protein interactions // Nature. – 1995. – 375,№ 6533. – Р.645–653.
- Wei L., Yu S.P., Gottron F. et al. Potassium channelblockers attenuate hypoxia- and ischemia-induced neu-ronal death in vitro and in vivo // Stroke.– 2003. – 34,№ 5. – Р.1281– 1286.
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