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Journal Articles Epileptic Disorders Year : 2009

Basic mechanisms of MCD in animal models.

Abstract

Epilepsy-associated glioneuronal malformations (malformations of cortical development [MCD]) include focal cortical dysplasias (FCD) and highly differentiated glioneuronal tumors, most frequently gangliogliomas. The neuropathological findings are variable but suggest aberrant proliferation, migration, and differentiation of neural precursor cells as essential pathogenetic elements. Recent advances in animal models for MCDs allow new insights in the molecular pathogenesis of these epilepsy-associated lesions. Novel approaches, presented here, comprise RNA interference strategies to generate and study experimental models of subcortical band heterotopia and study functional aspects of aberrantly shaped and positioned neurons. Exciting analyses address impaired NMDA receptor expression in FCD animal models compared to human FCDs and excitatory imbalances in MCD animal models such as lissencephaly gene ablated mice as well as in utero irradiated rats. An improved understanding of relevant pathomechanisms will advance the development of targeted treatment strategies for epilepsy-associated malformations.
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Dates and versions

inserm-00483186 , version 1 (12-05-2010)

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Giorgio Battaglia, Albert J. Becker, Joseph Loturco, Alfonso Represa, Scott C. Baraban, et al.. Basic mechanisms of MCD in animal models.. Epileptic Disorders, 2009, 11 (3), pp.206-14. ⟨10.1684/epd.2009.0273⟩. ⟨inserm-00483186⟩

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