J 2018

Effect of Endocannabinoid Oleamide on Rat and Human Liver Cytochrome P450 Enzymes in In Vitro and In Vivo Models

DOVRTĚLOVÁ, Gabriela, Ondřej ZENDULKA, Kristýna NOSKOVÁ, Jan JUŘICA, Ondřej PEŠ et. al.

Basic information

Original name

Effect of Endocannabinoid Oleamide on Rat and Human Liver Cytochrome P450 Enzymes in In Vitro and In Vivo Models

Authors

DOVRTĚLOVÁ, Gabriela (203 Czech Republic, belonging to the institution), Ondřej ZENDULKA (203 Czech Republic, guarantor, belonging to the institution), Kristýna NOSKOVÁ (203 Czech Republic, belonging to the institution), Jan JUŘICA (203 Czech Republic, belonging to the institution), Ondřej PEŠ (203 Czech Republic, belonging to the institution), Jan DUŠEK (203 Czech Republic), Alejandro CARAZO (724 Spain), Iveta ZAPLETALOVÁ (203 Czech Republic), Nataša HLAVÁČOVÁ (703 Slovakia) and Petr PÁVEK (203 Czech Republic)

Edition

Drug Metabolism and Disposition, Bethesda, AMER SOC PHARMACOLOGY EXPERIMENTAL THERAPEUTICS, 2018, 0090-9556

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30104 Pharmacology and pharmacy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.354

RIV identification code

RIV/00216224:14110/18:00100907

Organization unit

Faculty of Medicine

UT WoS

000439228300016

Keywords in English

cytochrome P450; enzyme inhibitors; liver; hepatic; pharmacokinetics

Tags

International impact, Reviewed
Změněno: 27/1/2021 13:04, Mgr. Tereza Miškechová

Abstract

V originále

The endocannabinoid system is important for many physiological and pathological processes, but its role in the regulation of liver cytochromes P450 (CYPs) is still unknown.We studied the influence of the endocannabinoid oleamide on rat and human liver CYPs. Oleamide was administered i.p. to rats at doses of 0.1, 1 and 10 mg/kg/day for 7 days. The content and activity of key CYPs was evaluated in rat liver microsomes. Moreover, its interactions with nuclear receptors regulating CYP genes and serum levels of their ligands (prolactin, corticosterone, and free triiodothyronine) were tested in vitro CYP inhibition assays. Decreased protein levels and metabolic activities of CYP1A2, CYP2B, and CYP2C11 along with a drop in metabolic activity of CYP2D2 were observed in animals treated with oleamide (10 mg/kg/day). The activities of CYP2C6, CYP2A, and CYP3A and the levels of hormones were not altered. In vitro, oleamide exhibited a weak inhibition of rat CYP1A2, CYP2D2, and CYP2C6. The activities of rat CYP2A, CYP2B, CYP2C11, and CYP3A and human CYP1A2, CYP2B6, CYP2C9, and CYP3A4 were not altered. Oleamide did not interact with human pregnane X, constitutive androstane and aryl hydrocarbon receptors in reporter gene experiments and did not regulate their target CYP genes in primary human hepatocytes. Our results indicate that oleamide caused the downregulation of some rat liver CYPs, and hormones are not mediators of this effect. In vitro oleamide inhibits mainly rat CYP2C6 and it is neither an agonist nor antagonist of major human nuclear receptors involved in the regulation of xenobiotic metabolism.

Links

GA16-06106S, research and development project
Name: Vysoce efektivní systém založený na kapilární elektroforéze pro screening inhibitorů beta-sekretázy jako terapeutického cíle pro Alzheimerovu chorobu (Acronym: Alzheimer)
Investor: Czech Science Foundation
LM2015090, research and development project
Name: Český národní uzel Evropské sítě infrastruktur klinického výzkumu (Acronym: CZECRIN)
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/0910/2017, interní kód MU
Name: Studium molekulární podstaty vybraných patologických stavů a onemocnění (Acronym: stumopo)
Investor: Masaryk University, Category A
MUNI/A/1132/2017, interní kód MU
Name: Behaviorální psychofarmakologie a farmakokinetika v preklinickém výzkumu léčiv
Investor: Masaryk University, Category A