Calcium channel subtypes and intracellular calcium stores modulate electric field-stimulated and -oriented nerve growth

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34 Citations (Scopus)

Abstract

In culture, embryonic spinal neurites from Xenopus laevis show striking growth responses to steady dc electric fields, at a time when endogenous electric fields of similar size impinge on the developing nervous system. A high proportion of cultured neurites reorient, with both turning and branching directed cathodally. Neurite growth rates are increased and growth is differential (faster cathodally than anodally). Voltage-dependent calcium channels and calcium release from intracellular stores are shown to control these events. However, the pharmacological sensitivities of these phenomena differ, indicating different control mechanisms.
Original languageEnglish
Pages (from-to)340-351
Number of pages12
JournalDevelopmental Biology
Volume171
Issue number2
DOIs
Publication statusPublished - 1 Oct 1995

Keywords

  • Animals
  • Calcium
  • Calcium Channel Blockers
  • Calcium Channels
  • Cells, Cultured
  • Electric Stimulation
  • Female
  • Neurites
  • Xenopus laevis

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