Journal
NEUROSCIENCE LETTERS
Volume 309, Issue 3, Pages 197-201Publisher
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(01)02065-1
Keywords
excitotoxicity; in vitro; cannabinoid receptor; neuroprotection; spinal
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Funding
- NIDA NIH HHS [DA09978, DA11322] Funding Source: Medline
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Significant advances are being made towards understanding the genetic basis for spinal neurodegenerative diseases, however, effective pharmacotherapy remains elusive. One of the primary theories underlying neuron vulnerability is susceptibility to excitotoxicity. We present for the first time evidence that the activation of the CB1 cannabinoid receptor effectively modulates kainate toxicity in primary neuronal cultures prepared from mouse spinal cord. Addition of Delta (9)-tetrahydrocannabinol to the culture medium attenuated the toxicity produced by kainate. The CB1 receptors were localized to spinal neurons and astrocytes. The neuroprotective effect was blocked with the CB1 receptor antagonist, SR141716A, indicating a receptor-mediated effect (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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