J 2012

Altered dopamine D1 and D2 receptor mRNA expression in mesencephalon from mice exposed to repeated treatments with methamphetamine and cannabinoid CB1 agonist methanandamide

LANDA, Leoš, Michal JURAJDA a Alexandra ŠULCOVÁ

Základní údaje

Originální název

Altered dopamine D1 and D2 receptor mRNA expression in mesencephalon from mice exposed to repeated treatments with methamphetamine and cannabinoid CB1 agonist methanandamide

Autoři

LANDA, Leoš (203 Česká republika), Michal JURAJDA (203 Česká republika, domácí) a Alexandra ŠULCOVÁ (203 Česká republika, garant, domácí)

Vydání

Neuroendocrinology Letters, Stockholm, MAGHIRA & MAAS PUBLICATIONS, 2012, 0172-780X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30000 3. Medical and Health Sciences

Stát vydavatele

Švédsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 0.932

Kód RIV

RIV/00216224:14740/12:00061208

Organizační jednotka

Středoevropský technologický institut

UT WoS

000310259500015

Klíčová slova anglicky

behavioural sensitization; methamphetamine; methanandamide; D1 and D2 receptor mRNA expression; mouse mesencephalon

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 8. 4. 2013 06:10, Olga Křížová

Anotace

V originále

OBJECTIVES: In our previous studies we found that both acute administration of CB1 receptor agonist methanandamide and repeated methanandamide pretreatment prior to methamphetamine challenge dose elicited increase in the CB1 receptor mRNA expression in the mouse mesencephalon. As a reciprocal cross-talk is reported between the cannabinoid CB1 and dopamine receptors, that are highly co-localized on brain neurones, we targeted possible changes in relative expression of dopamine D1 and D2 receptor mRNA in mesencephalon in mice sensitized by repeated treatments to methamphetamine stimulatory effects and cross-sensitized to methamphetamine by cannabinoid CB1 receptor agonist methanandamide pre-treatment. METHODS: To confirm development of behavioural sensitization or cross-sensitization, respectively, we observed changes in locomotion using the open field test. Mice were treated repeatedly with either methamphetamine or methamphetamine after repeated pre-treatment with methanandamide. After each measurement of locomotion one third of animals were sacrificed and the brain was stored. RNA was isolated from the midbrain and used for reverse transcription and subsequent real-time PCR. RESULTS AND CONCLUSION: As in many of our earlier studies with the same dosage regimen we found in the behavioural part both development of sensitization to methamphetamine stimulatory effects after repeated treatment and crosssensitization to them by pre-treatment with cannabinoid receptor CB1 agonist methanandamide. Real-time PCR analyses showed an increase in D1 receptor mRNA expression after the first dose of methamphetamine (that persisted also after the last dose of methamphetamine) and after the first dose of methanandamide (which also persisted after the methamphetamine challenge dose).

Návaznosti

ED1.1.00/02.0068, projekt VaV
Název: CEITEC - central european institute of technology