CP-101,606, an NR2B subunit selective NMDA receptor antagonist, inhibits NMDA and injury induced c-fos expression and cortical spreading depression in rodents

• Published in: Neuropharmacology Vol. 39; no. 7; pp. 1147 - 1155
• Main Authors: Menniti, Frank S, Pagnozzi, Martin J, Butler, Paul, Chenard, Bertrand L, Jaw-Tsai, Sarah S, Frost White, W
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.06.2000; Elsevier
• Subjects: Animals; Biological and medical sciences; Blotting, Northern; Brain Injuries - physiopathology; c-fos induction; Cortical spreading depression; Cortical Spreading Depression - drug effects; CP-101,606; Dizocilpine Maleate - pharmacology; Electric Stimulation; Excitatory Amino Acid Agonists - toxicity; Excitatory Amino Acid Antagonists - blood; Excitatory Amino Acid Antagonists - pharmacology; Gene Expression - drug effects; Genes, fos - drug effects; Glutamatergic system (aspartate and other excitatory aminoacids); Hippocampus - drug effects; Hippocampus - metabolism; Immunohistochemistry; Male; Medical sciences; Mice; N-Methylaspartate - antagonists & inhibitors; N-Methylaspartate - toxicity; Neuropharmacology; Neurotransmitters. Neurotransmission. Receptors; NMDA receptor antagonist; Pharmacology. Drug treatments; Piperidines - blood; Piperidines - pharmacology; Rats; Rats, Sprague-Dawley; Receptors, N-Methyl-D-Aspartate - antagonists & inhibitors; RNA, Messenger - biosynthesis; Rodentia; CP-101,606; Cortical spreading depression; NMDA receptor antagonist; c-fos induction; Agonist; Cerebral cortex; Intraperitoneal administration; Intravenous administration; Rat; Gene product; Rodentia; Central nervous system; Gene expression; Biological activity; Blood; Blood plasma; Dose activity relation; Vertebrata; Mammalia; Mouse; Animal; C-Onc gene; Antagonist; Spreading depression; Mechanism of action; Pharmacokinetics; NMDA receptor; Brain (vertebrata)
• ISSN: 0028-3908; 1873-7064
• DOI: 10.1016/S0028-3908(99)00211-7

(1S,2S)-1-(4-hydroxyphenyl)-2-(4-hydroxy-4-phenylpiperidino)-1-propanol (CP-101,606) is a noncompetitive antagonist of N-methyl-D-aspartate (NMDA) receptors containing the NR2B subunit. This compound was used to investigate the role of NR2B containing receptors in three responses to NMDA receptor activation in vivo. In mouse, CP-101,606 completely inhibited increases in fos-like immunoreactivity in dentate gyrus caused by a subconvulsant intraperitoneal dose of NMDA. In rat, the compound completely blocked cortical c-fos mRNA induction following focal injury in parietal cortex and the initiation and propagation of electrically induced cortical spreading depression. Inhibition of these responses by CP-101,606 indicates that c-fos induction and cortical spreading depression are dependent on activation of NMDA receptors containing the NR2B subunit. Since NMDA receptor dependent c-fos induction and cortical spreading depression may contribute to neuron loss after focal CNS injury, inhibition of these responses by CP-101,606 may contribute to the neuroprotective efficacy of the compound.