Glutamate receptor-mediated currents and toxicity in embryonal carcinoma cells

D. M. Turetsky, J. E. Huettner, D. I. Gottlieb, M. P. Goldberg, D. W. Choi

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

While primary neuronal cell cultures have been used to investigate excitotoxicity, development of cell lines exhibiting glutamate receptor- mediated death is desirable. P19 mouse embryonal carcinoma cells, exposed to retinoic acid and plated onto a layer of cultured mouse cortical glial cells, differentiated into neuron-like elements immunoreactive for neurofilaments and neuron-specific enolase. Whole-cell recordings revealed inward currents in response to extracellular application of either NMDA or kainate. The NMDA- induced currents exhibited a voltage-dependent blockade by magnesium, required glycine for maximal activation, and were blocked by the NMDA antagonist dizocilpine. Kainate-induced currents were blocked by the AMPA/kainate receptor antagonist CNQX. Exposure to 500 μM NMDA for 24 h destroyed most P19 cells (EC50 approximately 70 μM); death was prevented by dizocilpine or D-APV. Exposure to 500 μM kainate also resulted in widespread death reduced by CNQX. Thus differentiated P19 cells exhibited both excitatory amino acid responses and vulnerability to excitotoxicity, characteristic of CNS neurons. These cells may provide a genetically open system useful for studying glutamate receptor-mediated phenomena at a molecular level.

Original languageEnglish (US)
Pages (from-to)1157-1169
Number of pages13
JournalJournal of Neurobiology
Volume24
Issue number9
StatePublished - 1993

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Embryonal Carcinoma Stem Cells
Glutamate Receptors
N-Methylaspartate
Kainic Acid
6-Cyano-7-nitroquinoxaline-2,3-dione
Dizocilpine Maleate
Kainic Acid Receptors
Neurons
Excitatory Amino Acids
Primary Cell Culture
AMPA Receptors
Intermediate Filaments
Phosphopyruvate Hydratase
Patch-Clamp Techniques
Tretinoin
Neuroglia
Glycine
Magnesium
Cell Line

Keywords

  • AMPA
  • cell death
  • excitotoxicity
  • kainate
  • NMDA
  • P19

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Turetsky, D. M., Huettner, J. E., Gottlieb, D. I., Goldberg, M. P., & Choi, D. W. (1993). Glutamate receptor-mediated currents and toxicity in embryonal carcinoma cells. Journal of Neurobiology, 24(9), 1157-1169.

Glutamate receptor-mediated currents and toxicity in embryonal carcinoma cells. / Turetsky, D. M.; Huettner, J. E.; Gottlieb, D. I.; Goldberg, M. P.; Choi, D. W.

In: Journal of Neurobiology, Vol. 24, No. 9, 1993, p. 1157-1169.

Research output: Contribution to journalArticle

Turetsky, DM, Huettner, JE, Gottlieb, DI, Goldberg, MP & Choi, DW 1993, 'Glutamate receptor-mediated currents and toxicity in embryonal carcinoma cells', Journal of Neurobiology, vol. 24, no. 9, pp. 1157-1169.
Turetsky, D. M. ; Huettner, J. E. ; Gottlieb, D. I. ; Goldberg, M. P. ; Choi, D. W. / Glutamate receptor-mediated currents and toxicity in embryonal carcinoma cells. In: Journal of Neurobiology. 1993 ; Vol. 24, No. 9. pp. 1157-1169.
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