Title : Down regulation of multidrug resistance protein-1 expression in patients with early rheumatoid arthritis exposed to methotrexate as a first disease-modifying antirheumatic drug.

Pub. Date : 2006 Oct

PMID : 16504991






12 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 Down regulation of multidrug resistance protein-1 expression in patients with early rheumatoid arthritis exposed to methotrexate as a first disease-modifying antirheumatic drug. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
2 BACKGROUND: Methotrexate (MTX) is the current gold standard conventional disease-modifying antirheumatic drug (DMARD) and is effluxed from cells by several transmembrane proteins, including multidrug resistance protein-1 (MRP1). Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
3 BACKGROUND: Methotrexate (MTX) is the current gold standard conventional disease-modifying antirheumatic drug (DMARD) and is effluxed from cells by several transmembrane proteins, including multidrug resistance protein-1 (MRP1). Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
4 BACKGROUND: Methotrexate (MTX) is the current gold standard conventional disease-modifying antirheumatic drug (DMARD) and is effluxed from cells by several transmembrane proteins, including multidrug resistance protein-1 (MRP1). Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
5 BACKGROUND: Methotrexate (MTX) is the current gold standard conventional disease-modifying antirheumatic drug (DMARD) and is effluxed from cells by several transmembrane proteins, including multidrug resistance protein-1 (MRP1). Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
6 AIMS: To compare MRP1 expression in newly diagnosed patients with DMARD-naive rheumatoid arthritis with that in healthy controls and to investigate how MRP1 expression changed after exposure to MTX. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
7 AIMS: To compare MRP1 expression in newly diagnosed patients with DMARD-naive rheumatoid arthritis with that in healthy controls and to investigate how MRP1 expression changed after exposure to MTX. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
8 In patients who were positive for MRP1 at baseline (61%), treatment with MTX and folic acid led to a marked down regulation of MRP1 expression at 6 months. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
9 In patients who were positive for MRP1 at baseline (61%), treatment with MTX and folic acid led to a marked down regulation of MRP1 expression at 6 months. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
10 CONCLUSION: In patients with rheumatoid arthritis expressing MRP1, treatment with MTX and folic acid led to down regulation of MRP1 expression. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
11 CONCLUSION: In patients with rheumatoid arthritis expressing MRP1, treatment with MTX and folic acid led to down regulation of MRP1 expression. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens
12 Further studies are required to determine the mechanism behind this observation and whether MRP1 expression mediates altered efficacy to MTX. Methotrexate ATP binding cassette subfamily B member 1 Homo sapiens