Title : Delta9-tetrahydrocannabinol increases sequence-specific AP-1 DNA-binding activity and Fos-related antigens in the rat brain.

Pub. Date : 1998 May

PMID : 9751146






4 Functional Relationships(s)
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1 Delta9-tetrahydrocannabinol increases sequence-specific AP-1 DNA-binding activity and Fos-related antigens in the rat brain. Dronabinol Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
2 One hour after the intraperitoneal administration of delta9-THC at a dose of 10 or 15 mg/kg, AP-1 DNA-binding activity in the nucleus accumbens increased by 33 and 49%, respectively, while Western blot showed an increase in both c-Fos, FosB, Fra-1 (Fos-related antigen) and Fra-2. Dronabinol Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
3 The effect of delta9-THC on the AP-1 DNA binding and the Fos-related antigens in the nucleus accumbens was blocked by the specific cannabinoid antagonist SR141716 A (3 mg/kg i.p.). Dronabinol Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
4 The results indicate that delta9-THC activates gene coding for AP-1 DNA-binding proteins by acting on cannabinoid receptors, and induces a different transcriptional program on the early-immediate gene of the Fos family, in different areas in the rat brain, suggesting that this mechanism might be involved in the central actions of cannabinoids. Dronabinol Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus