Interaction of drugs of abuse and maintenance treatments with human P-glycoprotein (ABCB1) and breast cancer resistance protein (ABCG2).

Abstract

Drug interaction with P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP) may influence its tissue disposition including blood-brain barrier transport and result in potent drug-drug interactions. The limited data obtained using in-vitro models indicate that methadone, buprenorphine, and cannabinoids may interact with human P-gp; but almost nothing is known about drugs of abuse and BCRP. We used in vitro P-gp and BCRP inhibition flow cytometric assays with hMDR1- and hBCRP-transfected HEK293 cells to test 14 compounds or metabolites frequently involved in addiction, including buprenorphine, norbuprenorphine, methadone, ibogaine, cocaine, cocaethylene, amphetamine, N-methyl-3,4-methylenedioxyamphetamine, 3,4-methylenedioxyamphetamine, nicotine, ketamine, Delta9-tetrahydrocannabinol (THC), naloxone, and morphine. Drugs that in vitro inhibited P-gp or BCRP were tested in hMDR1- and hBCRP-MDCKII bidirectional transport studies. Human P-gp was significantly inhibited in a concentration-dependent manner by norbuprenorphine>buprenorphine>methadone>ibogaine and THC. Similarly, BCRP was inhibited by buprenorphine>norbuprenorphine>ibogaine and THC. None of the other tested compounds inhibited either transporter, even at high concentration (100 microm). Norbuprenorphine (transport efflux ratio approoximately 11) and methadone (transport efflux ratio approoximately 1.9) transport was P-gp-mediated; however, with no significant stereo-selectivity regarding methadone enantiomers. BCRP did not transport any of the tested compounds. However, the clinical significance of the interaction of norbuprenorphine with P-gp remains to be evaluated.

• Authors: Nicolas Tournier, Lucie Chevillard, Bruno Megarbane, Stéphane Pirnay, Jean-Michel Scherrmann, Xavier Declèves
• Journal: The international journal of neuropsychopharmacology (Int J Neuropsychopharmacol) Vol. 13 Issue 7 Pg. 905-15 (Aug 2010) ISSN: 1469-5111 [Electronic] England
• PMID: 19887017 (Publication Type: Journal Article)

Chemical References

• ABCG2 protein, human
• ATP Binding Cassette Transporter, Subfamily B, Member 1
• ATP Binding Cassette Transporter, Subfamily G, Member 2
• ATP-Binding Cassette Transporters
• Illicit Drugs
• Neoplasm Proteins
• Ibogaine
• Buprenorphine
• norbuprenorphine

Topics

• ATP Binding Cassette Transporter, Subfamily B, Member 1 (metabolism)
• ATP Binding Cassette Transporter, Subfamily G, Member 2
• ATP-Binding Cassette Transporters (metabolism)
• Buprenorphine (analogs & derivatives, metabolism)
• Cell Line, Tumor (metabolism)
• Drug Interactions
• Drug Resistance, Multiple
• Drug Resistance, Neoplasm
• Humans
• Ibogaine (metabolism)
• Illicit Drugs (metabolism)
• Neoplasm Proteins (metabolism)