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. 1993 Apr 15;90(8):3256–3259. doi: 10.1073/pnas.90.8.3256

Human immunodeficiency virus type 1 coat protein neurotoxicity mediated by nitric oxide in primary cortical cultures.

V L Dawson 1, T M Dawson 1, G R Uhl 1, S H Snyder 1
PMCID: PMC46278  PMID: 8097316

Abstract

The human immunodeficiency virus type 1 coat protein, gp120, kills neurons in primary cortical cultures at low picomolar concentrations. The toxicity requires external glutamate and calcium and is blocked by glutamate receptor antagonists. Nitric oxide (NO) contributes to gp120 toxicity, since nitroarginine, an inhibitor of NO synthase, prevents toxicity as does deletion of arginine from the incubation medium and hemoglobin, which binds NO. Superoxide dismutase also attenuates toxicity, implying a role for superoxide anions.

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Selected References

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