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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2008-12-9
pubmed:abstractText
One of the main problems in treating cancer patients is that cancer cells can develop drug resistance. Resistance to multiple anticancer drugs, so called multidrug resistance (MDR), most likely involves a nonspecific mode of resistance, through drug-efflux transporters. One of the most extensively studied genes involved in MDR is multidrug resistance protein 1 (MRP1). We investigated a possible association between the expression level of MRP1 and the occurrence of MDR in leukemic patients, and we tested the hypothesis that MRP1 polymorphisms are predictive of MDR in patients with acute leukemia. The mRNA level of MRP1 was determined in 111 patients with acute leukemia (including 52 patients with acute myeloid leukemia and 59 patients with acute lymphoblastic leukemia), by quantitative real-time PCR, to determine how it affected the response to chemotherapy. We typed T2684C, C2007T, C2012T, and C2665T MRP1 polymorphisms in 111 patients classified as either drug-resistant or drug-responsive. We found that high expression of MRP1 was associated with the MDR phenotype in both acute myeloid leukemia and acute lymphoblastic leukemia patients. There was no effect of a particular genotype on the expression level of the MRP1 gene. We found no significant differences in chemosensitivity among any of these genotypes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1676-5680
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1369-74
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
MRP1 polymorphisms (T2684C, C2007T, C2012T, and C2665T) are not associated with multidrug resistance in leukemic patients.
pubmed:affiliation
Clinical Genetics Department, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran. Frouz@nigeb.ac.ir
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't