Time dependency of the action of nitric oxide in lipopolysaccharide–interferon-γ-induced neuronal cell death in murine primary neuron–glia co-cultures

doi:10.1016/S0006-8993(00)02737-2

Brain Research

Volume 880, Issues 1–2, 13 October 2000, Pages 173-177

https://doi.org/10.1016/S0006-8993(00)02737-2 Get rights and content

Abstract

We investigated the time-dependency of the action of nitric oxide (NO) on glia-mediated neuronal cell death. Cortical neuron–glia co-cultures were treated with lipopolysaccharide and interferon γ (LPS/IFNγ). The production of NO was first detectable 9 h after the exposure to LPS/IFNγ and increased for up to 48 h. A significant neuronal cell death was observed 36–48 h after treatment with LPS/IFNγ. The NO generated at the initial stage of NO synthesis (about 12 h) following exposure to LPS/IFNγ was found to be critical for LPS/IFNγ-induced neurotoxicity. Furthermore, the rate of NO production at the initial stage of NO synthesis was correlated linearly with the extent of neuronal cell death. These findings suggest that the maximal rate of NO synthesis, instead of the accumulated NO₂⁻ level, is a sensitive index for predicting endotoxin-induced cytotoxicity.

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Short communicationTime dependency of the action of nitric oxide in lipopolysaccharide–interferon-γ-induced neuronal cell death in murine primary neuron–glia co-cultures

Abstract

Brain Res.

J. Biol. Chem.

J. Neuroimmunol.

Neuropharmacology

J. Neuroimmunol.

J. Neuroimmunol.

Anal. Biochem.

J. Neuroimmunol.

Mol. Brain Res.

Mol. Brain Res.

Brain Res.

Neurochem. Int.

Meth. Hypothesis

ALS, SOD and peroxynitrite

Nature

Short communication
Time dependency of the action of nitric oxide in lipopolysaccharide–interferon-γ-induced neuronal cell death in murine primary neuron–glia co-cultures