L-type Calcium Channels Govern Calcium Signaling in Migrating Newborn Neurons in the Postnatal Olfactory Bulb

Overview

Journal J Neurosci

Specialty Neurology

Date 2009 Feb 27

PMID 19244525

Citations 18

Authors

Daniel P Darcy

Jeffry S Isaacson

Affiliations

Soon will be listed here.

Abstract

Newborn inhibitory neurons migrate into existing neural circuitry in the olfactory bulb throughout the lifetime of adult mammals. While many factors contribute to the maturation of neural circuits, intracellular calcium is believed to play an important role in regulating cell migration and the development of neural systems. However, the factors underlying calcium signaling within newborn neurons in the postnatal olfactory bulb are not well understood. Here, we show that migrating, immature neurons in the olfactory bulb subependymal layer (SEL) undergo spontaneous and depolarization-evoked intracellular calcium transients mediated by high-voltage-activated L-type calcium channels. In contrast to migrating immature neurons in other brain regions, modulation of calcium transients in SEL cells does not alter their rate of migration.

Citing Articles

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L-Type Calcium Channels Contribute to Ethanol-Induced Aberrant Tangential Migration of Primordial Cortical GABAergic Interneurons in the Embryonic Medial Prefrontal Cortex.

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