Translocates drugs and phospholipids across the membrane. Catalyzes the flop of phospholipids from the cytoplasmic to the exoplasmic leaflet of the apical membrane. Participates mainly to the flop of phosphatidylcholine, phosphatidylethanolamine, beta-D-glucosylceramides and sphingomyelins. Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells.
Gene References into Functions
Conformational dynamics of P-glycoprotein in lipid nanodiscs and detergent micelles reveal complex motions on a wide time scale.PMID:29511086
Study demonstrated that TWIST protein expression was elevated in liver cancer tissue specimens and was positively correlated with MDR1 expression. Knockdown of TWIST increased the sensitivity of RHepG2 cells to antineoplastic agents through a reduction in MDR1 expression and drug efflux ability.PMID:30066890
the over-expression of SLC7A11, or supplementation with sufficiently cystine, or treatment with N-acetylcysteine significantly decreased P-gp expression and activity. It was suggested that ROS and SLC7A11/cystine were the two relevant factors responsible for the expression and function of P-gp, and that SLC7A11 might be a potential target modulating ADR resistance.PMID:28630426
Data provide a mechanistic explanation for the differential effects of ABCB1 haplotypes on its promoter activity and underscore the importance of evaluating genetic variants in the context of haplotypes rather than individual SNPs when investigating their effects on gene/protein expression and disease risk.PMID:30277801
CYP3A5, ABCB1 and two POR genotypes were assessed by real-time PCR.PMID:28094348
ABCB1 C3435T polymorphism can affect the elimination of some antipsychotic/antidepressant drugs.PMID:29723928
High BCL11A and MDR1 expression was associated with a poor response to chemotherapy.PMID:29469608
The methylation/expression ratios of ABCB1 were unaffected by increasing BMI values.PMID:27897267
Neither the ABCB1 C3435T nor the SLCO1B1 T521C polymorphism affected edoxaban PK.PMID:27897269
Our results show that ABCB1 C3435T polymorphism may modulate serum THC levels in chronic heavy cannabis users. The exact mechanisms and roles that this may play in cannabis dependence genesis and evolution remain to be elucidated. These results should be controlled in a replication study using a larger population.PMID:28917442
MDR1 is not expressed on erythrocyte membrane.PMID:29098941
The genetic polymorphisms of the multi-drug resistance-1 (MDR-1) and human cytochrome P450 3A (CYP3A4 and CYP3A5) genes were analyzed and compared between steroid sensitive, steroid resistant and control groups.PMID:30143489
This meta-analysis suggests that the MDR1 C > T polymorphism was not associated with the risk of MM. To confirm these findings, further comprehensive and well-designed studies are needed.PMID:29495954
High MDR1 expression is associated with chemoresistance in ovarian cancer.PMID:29956807
13-cis-retinoic acid, retinol and retinyl-acetate inhibited the Pgp and ABCG2 mediated substrate transport as well as the substrate stimulated ATPase activity of these transporters.PMID:28145501
Haplotype analysis of ABCB1 conducted in patients with bullous pemphigoid demonstrated that the 1236T-2677G-3435T haplotype may protect against development of disease.PMID:29948283
High ABCB1 expression is associated with Bendamustine-resistance in Mantle Cell Lymphoma.PMID:29695404
Data show that multidrug resistance gene 1 (MDR1) expression was associated with worsen survival of esophageal squamous cell carcinoma (ESCC) patients with cisplatin-based chemotherapy.PMID:29107111
ABCB1 variation affected myelosuppression, progression-free survival and overall survival in ovarian cancer patients who were treated with paclitaxel and carboplatinPMID:29504705
Our data showed that the expression of the MDR1 gene was significantly higher in malignant tissue than in the normal tissues of patients with STS. In addition, high MDR1 expression was significantly associated with local advances, as well as poor response to treatment.PMID:29689707
These results indicated that MG132 reversed the MDR of hypopharyngeal carcinoma by downregulating Pgp/Pgp, and the underlying mechanism may be associated with the activation the of the JNK signaling pathwayPMID:29901180
P-glycoprotein on peripheral blood leukocytes of systemic lupus erythematosus (SLE) patients with lupus arthritis may have a role in clinical response to methotrexatePMID:28616661
This study elaborated a novel UCA1/miR-129/ABCB1 regulatory axis underlying paclitaxel resistance of ovarian cancer cells.PMID:29777711
ABCB1 3435C>T and ATIC 347C>G SNPs were associated with abnormal hepatic enzyme elevation by methotrexate treatment in patients with rheumatoid arthritis.PMID:29252093
The role of multidrug resistance 1 gene (MDR1 or ABCB1) polymorphism G2677T was studied in relation to paroxetine therapeutic efficacy and its side effects, as well as its association with selected demographic and clinical characteristics of patients with depressive disorder.PMID:29754150
alterations in latrophilin expression occur in AML cells expressing P-gpPMID:29938681
This study demonstrated that the The G2677T T and C3435T T alleles as well as the TT, CTT and TTT haplotypes seemed to be significantly associated with drug-resistance epilepsy in Tunisian epileptic population.PMID:29198163
Pharmacokinetics of aripiprazole is affected by sex and ABCB1 gene phenotypePMID:29325225
There were no significant differences in the bosutinib C0 between genotypes for ABCB1, ABCG2, and CYP3A4 polymorphisms.PMID:29736778
Studies show a connection between UDP-glucose ceramide glucosyltransferase (UGCG) and multidrug resistance protein 1 (MDR1) overexpression and multidrug resistance development [Review].PMID:29409484
Due to the downregulation of MDR1 and MRP1, the intracellular accumulation of ADM was increased in the transfected cells compared with that in the parental K562/ADM cells..Our research revealed that protein expression of the ERK signaling pathway was inhibited by downregulating TRIB2, indicating that the ERK pathway was involved in cell drug resistance and proliferation.PMID:29436678
Asiatic Acid strongly inhibited P-GP expression by blocking MDR1 gene transcription and increased the intracellular accumulation of the P-GP substrate Rhodamine 123 in MDR1-overexpressing cisplatin (DDP)-resistant lung cancer cells, A549/DDP.PMID:29768255
Ceritinib enhanced the efficacy of substrate chemotherapeutic agent in ABCB1-overexpressing K562/adr leukemia cells both in vitro and in vivo models, but neither in sensitive parental K562 leukemia cells nor in ABCC1-overexpressing HL-60/adr leukemia cells.PMID:29742496
Polymorphism of ABCB1 rs1045642-T variant allele is associated with colorectal cancer.PMID:29282011
There is a certain correlation between the APC gene and ovarian tumors, and the APC gene mediates the apoptosis of tumor cells through the MDR-1/CLCX-1 signaling pathway.PMID:29921377
ABCB1/Pgp expression, activity, and single nucleotide polymorphisms (SNPs) in chronic myeloid leukemia. [review]PMID:29316665
High MDR1 expression is associated with primary myelodysplastic syndrome.PMID:27605311
analysis of the structure of zosuquidar and UIC2-bound human-mouse chimeric ABCB1PMID:29440498
ABCB1 gene polymorphisms are not associated with response to chemotherapy in breast cancer.PMID:29113667
Patients prescribed with short-term low-dose atorvastatin and carrying ABCB1 (rs1128503) or ABCG2 (rs2231142) SNPs did not show differences in LDL-C response (P>.05).PMID:28833323
Genotypes of UGT1A and ABCB1 were significantly associated with changes in moxifloxacin pharmacokinetic parameters.PMID:29210323
G2677T/A polymorphism of MDR1 may play a significant role in the development of drug-resistant epilepsy in the Polish patientsPMID:28608314
No association was found between the ABCB1 SNPs and Crohn's disease in the two populationsPMID:28759738
icaritin (ICT) decreased the mRNA and protein levels of multidrug resistance protein 1 (MDR1) in MG-63 doxorubicin-resistant (MG-63/DOX) cells.PMID:29425587
We demonstrate for the first time that the effect of ABCB1 diplotype on tacrolimus disposition is dependent on both CYP3A5 and CYP3A4 genotype.PMID:27378609
these results address key concerns in the field, including that of cross-resistance between taxanes and highlighting a mechanism of cabazitaxel resistance involving ABCB1PMID:28698198
CYP3A and ABCB1 SNPs were detected in 521 recipients.PMID:28952408
MDR-1 C3435T gene polymorphism was associated with right ventricular dysfunction in patients with chronic obstructive pulmonary disease.PMID:29791609
data suggested that hypomethylation agent decitabine restores drug sensitivity in the P-gp-induced MDR phenotype by depressing of P-gp activity as drug pump partly through MAPK signaling pathway.PMID:28405849
None of the genotypes in ABCB1 1236 C>T, 2677 G>T/A, 3435 C>T, and 4036 A>G correlated with plasma dolutegravir concentration..The speculated peak level of plasma dolutegravir concentration was significantly higher in ABCG2 genetic variant holders, probably, at least in part, because of low expression levels of efflux transporters in the intestines associated with these genetic variants.PMID:28858994