Review Article
Ion Channel Activities in Neural Stem Cells of the Neuroepithelium
Table 1
Neuroepithelial-cell-ion channels and their functions.
| Type of ion channel | Function of ion channel |
| Ion channels in the plasma membrane | Gap junction channel | Stabilizing membrane potential by lowering input resistance | Store-operated Ca2+ entry channel (TRP or Orai) | Replenishing Ca2+ stores after Ca2+ release | Epithelial Na+ channel | Continuous Na+ influx from ventricular space to generate DC potential | L-type voltage-dependent Ca2+ channel | Ca2+ influx by depolarization | BK channel | Repolarizating after depolarization and intracellular Ca2+ rise | GABAA receptor channel | Depolarizing in response to GABA | P2X purinoceptor channel | Depolarizing in response to ATP |
| Ion channels in the nuclear envelope and the endoplasmic reticulum | InsP3 receptor channel | Ca2+ release by activation of muscarinic acetylcholine receptor, P2Y purinoceptor, and lysophosphatidic acid receptor | BK channel | Counter ion movement for Ca2+ release to maintain driving force for Ca2+ release |
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