Title : Modulation of P-glycoprotein-mediated drug transport by alterations in lipid fluidity of rat liver canalicular membrane vesicles.

Pub. Date : 1992 Dec 15

PMID : 1360981






4 Functional Relationships(s)
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Organism
1 P-gp has been localized to the apical plasma membrane of the bile canaliculus where it has been shown to transport [3H]daunomycin. Tritium ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus
2 In this study, we investigated whether alterations in membrane lipid fluidity of canalicular membrane vesicles (CMV) could modulate the P-gp-mediated accumulation of [3H]daunomycin and [3H]vinblastine. Tritium ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus
3 In this study, we investigated whether alterations in membrane lipid fluidity of canalicular membrane vesicles (CMV) could modulate the P-gp-mediated accumulation of [3H]daunomycin and [3H]vinblastine. Tritium ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus
4 Verapamil competitively inhibited P-gp-mediated accumulation of [3H]daunomycin but failed to alter the fluidity of CMV. Tritium ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus