Results 11 to 20 of about 26,813 (237)

Karanjin interferes with ABCB1, ABCC1, and ABCG2 [PDF]

open access: yesJournal of Pharmacy & Pharmaceutical Sciences, 2014
PURPOSE: The prominent ATP-binding cassette (ABC) transporters ABCB1, ABCC1, and ABCG2 are involved in substance transport across physiological barriers and therefore in drug absorption, distribution, and elimination. They also mediate multi-drug resistance in cancer cells.
Martin Michaelis   +5 more
core   +6 more sources

Differential Effects of the Oncogenic BRAF Inhibitor PLX4032 (Vemurafenib) and its Progenitor PLX4720 on ABCB1 Function

open access: yesJournal of Pharmacy & Pharmaceutical Sciences, 2014
PURPOSE: The clinically approved oncogenic BRAF inhibitor PLX4032 (vemurafenib) was shown to be a substrate of the ATP-binding cassette (ABC) transporter ABCB1. Here, we compared PLX4032 and its structurally closely related precursor compound PLX4720 for
Martin Michaelis   +7 more
doaj   +2 more sources

Cloning and Transcriptional Activity Analysis of the Porcine Abcb1 Gene Promoter: Transcription Factor Sp1 Regulates the Expression of Porcine Abcb1

open access: yesFrontiers in Pharmacology, 2018
P-Glycoprotein (P-gp, Abcb1) plays a crucial role in drug disposition and functions by hydrolyzing ATP. However, little is known about the regulatory elements governing the transcription of the porcine Abcb1 gene.
Tingting Guo   +7 more
doaj   +2 more sources

Membrane Assays to Characterize Interaction of Drugs with ABCB1 [PDF]

open access: yesThe Journal of Membrane Biology, 2015
ATP-binding cassette sub-family B member 1 (ABCB1) [P-glycoprotein (P-gp), multidrug resistance protein 1 (MDR1)] can affect the pharmacokinetics, safety, and efficacy of drugs making it important to identify compounds that interact with ABCB1. The ATPase assay and vesicular transport (VT) assay are membrane based assays that can be used to measure the
Zsolt, Fekete   +11 more
openaire   +4 more sources

ML210 Antagonizes ABCB1- Not ABCG2-Mediated Multidrug Resistance in Colorectal Cancer

open access: yesBiomedicines
Objectives: ABCB1-mediated multidrug resistance (MDR) compromises chemotherapy efficacy in colorectal cancer (CRC). Despite decades of research, no selective ABCB1 inhibitor has achieved clinical success.
Yan-Chi Li   +7 more
doaj   +2 more sources

Genetic Polymorphisms in ABCB1 Influence the Pharmacodynamics of Tacrolimus

open access: yesTherapeutic Drug Monitoring, 2013
Tacrolimus has a large interindividual pharmacokinetic variability, and quantification of its effect is difficult. It is a substrate of ABCB1, an efflux pump expressed more on CD8 T cells than on CD4 T cells. The ABCB1 3435C>T single-nucleotide polymorphism (SNP) has been associated with interindividual differences in ABCB1 activity and may influence ...
Vafadari, Ramin   +7 more
openaire   +3 more sources

PBK/TOPK inhibitor OTS964 resistance is mediated by ABCB1-dependent transport function in cancer: in vitro and in vivo study

open access: yesMolecular Cancer, 2022
Highlights ABCB1 overexpression significantly desensitized both drug-selected and gene-transfected cells, which overexpress ABCB1, to OTS964 and that this drug resistance can be antagonized by verapamil, a known ABCB1 inhibitor.
Yuqi Yang   +8 more
doaj   +1 more source

Dynamic induction of drug resistance through a stress-responsive enhancer in acute myeloid leukemia

open access: yesMolecular & Cellular Oncology, 2020
The drug efflux pump ABCB1 (ATP binding cassette subfamily B member 1) confers chemotherapy resistance in acute myeloid leukemia (AML). We recently identified an ABCB1 enhancer that is activated in response to a range of cellular stressors, including ...
Mark S. Williams, Tim C. P. Somervaille
doaj   +1 more source

The temporal relationship between ABCB1 promoter hypomethylation, ABCB1 expression and acquisition of drug resistance [PDF]

open access: yesThe Pharmacogenomics Journal, 2010
Induced expression of the Abcb1 drug transporter often occurs in tumors in response to chemotherapy. The role that epigenetic modifications within the ABCB1 promoter play in Abcb1 expression remains unclear. We selected MCF-7 cells for survival in increasing doses of chemotherapy drugs, and assessed the methylation status of 66 CpG sites within the ...
K, Reed   +3 more
openaire   +2 more sources

Effect of Food and an Animal’s Sex on P-Glycoprotein Expression and Luminal Fluids in the Gastrointestinal Tract of Wistar Rats

open access: yesPharmaceutics, 2020
The rat is one of the most commonly used animal models in pre-clinical studies. Limited information between the sexes and the effect of food consumption on the gastrointestinal (GI) physiology, however, is acknowledged or understood.
Liu Dou   +7 more
doaj   +1 more source

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