Pathophysiological mechanisms of genetic epilepsies

被引:1
作者
Hedrich U.B.S. [1 ]
Maljevic S. [1 ]
机构
[1] Abt. Neurologie mit Schwerpunkt Epileptologie, Hertie Institut für Klinische Hirnforschung, Hoppe-Seyler-Str. 3, Tübingen
来源
Zeitschrift für Epileptologie | 2016年 / 29卷 / 2期
关键词
Epileptic encephalopathy; Ion channels; Mouse models; Pathomechanism; Voltage clamp;
D O I
10.1007/s10309-015-0037-y
中图分类号
学科分类号
摘要
Epileptic seizures occur because of the increased excitability of neuronal cells in the brain that is of a mainly genetic origin in at least one third of all epilepsies. The so far identified mutations in inherited monogenic idiopathic epilepsies mainly affect ion channel genes and could be linked to both focal and generalized forms of inherited epilepsy. In a healthy brain, ion channels in the membranes of excitatory and inhibitory neurons are responsible for a neuronal balance. Disruption of this balance by changing the ion channel function can therefore lead to epileptic seizures. In this overview, we describe and discuss known epilepsy-associated mutations in ion channel genes, their functional consequences, and the resulting disease mechanisms. © 2015, Springer-Verlag Berlin Heidelberg.
引用
收藏
页码:77 / 83
页数:6
相关论文
共 32 条
  • [1] Barcia G., Fleming M.R., Deligniere A., Et al., De novo gain-of-function KCNT1 channel mutations cause malignant migrating partial seizures of infancy, Nat Genet, 44, pp. 1255-1259, (2012)
  • [2] Becker F., Schubert J., Striano P., Et al., PRRT2-related disorders: further PKD and ICCA cases and review of the literature, J Neurol, 260, pp. 1234-1244, (2013)
  • [3] Claes L., Del-Favero J., Ceulemans B., Et al., De novo mutations in the sodium-channel gene SCN1A cause severe myoclonic epilepsy of infancy, Am J Hum Genet, 68, pp. 1327-1332, (2001)
  • [4] Escayg A., Macdonald B.T., Meisler M.H., Et al., Mutations of SCN1A, encoding a neuronal sodium channel, in two families with GEFS+2, Nat Genet, 24, pp. 343-345, (2000)
  • [5] Glauser T.A., Cnaan A., Shinnar S., Et al., Ethosuximide, valproic acid, and lamotrigine in childhood absence epilepsy, N Engl J Med, 362, pp. 790-799, (2010)
  • [6] Hedrich U.B., Liautard C., Kirschenbaum D., Et al., Impaired action potential initiation in GABAergic interneurons causes hyperexcitable networks in an epileptic mouse model carrying a human Na<sub>V</sub>1.1 mutation, J Neurosci, 34, pp. 14874-14889, (2014)
  • [7] Heron S.E., Smith K.R., Bahlo M., Et al., Missense mutations in the sodium-gated potassium channel gene KCNT1 cause severe autosomal dominant nocturnal frontal lobe epilepsy, Nat Genet, 44, pp. 1188-1190, (2012)
  • [8] Hirose S., Mutant GABAA receptor subunits in genetic (idiopathic) epilepsy, Prog Brain Res, 213, pp. 55-85, (2014)
  • [9] Imbrici P., Jaffe S.L., Eunson L.H., Et al., Dysfunction of the brain calcium channel Ca<sub>V</sub>2.1 in absence epilepsy and episodic ataxia, Brain, 127, pp. 2682-2692, (2004)
  • [10] Kegele J., Weber Y., Relevante genetische Befunde für die Praxis. Z Epileptol, doi:10.1007/s10309-015-0035-0, (2015)