title: Real-time quantitative polymerase chain reaction for BCRP, MDR1, and MRP1 mRNA levels in lymphocytes and monocytes.
abstract: The expression levels of mRNAs for MDR1 (P-glycoprotein), multidrug resistance-associated proteins (MRP1), and BCRP (breast cancer resistance protein; mitoxantrone resistance protein) were quantitatively determined in lymphocytes and monocytes. Monocytes and lymphocytes were obtained from 3 healthy male and 2 healthy female volunteers. BCRP, MDR1, and MRP1 mRNA levels were determined by real-time quantitative reverse transcriptase polymerase chain reaction. In lymphocytes, relative concentrations of mRNAs for target proteins (BCRP, MDR1, and MRP1) were 1.00 +/- 0.478, 9.67 +/- 5.53, and 0.116 +/- 0.0613 respectively, and in monocytes 1.00 +/- 0.854, 0.821 +/- 0.263, and 0.090 +/- 0.052, respectively. The MDR1 mRNA level was cell type dependent, whereas there was no difference in BCRP and MRP1 expression levels between lymphocytes and monocytes. Comparison of mRNA levels for the three major multidrug-resistant efflux pumps reveals that MDR1 is the predominant form in lymphocytes and BCRP is the predominant form in monocytes.
authors.affiliation: Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Amherst, NY 14260-1200, USA.
authors.forename: Young Jin
authors.initials: YJ
authors.lastname: Moon
authors.forename: Shuzhong
authors.initials: S
authors.lastname: Zhang
authors.forename: Marilyn E
authors.initials: ME
authors.lastname: Morris
mesh_terms: D018435:ATP Binding Cassette Transporter, Subfamily B; D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1 / Q000096:biosynthesis* / Q000235:genetics; D000070997:ATP Binding Cassette Transporter, Subfamily G, Member 2; D018528:ATP-Binding Cassette Transporters / Q000096:biosynthesis* / Q000235:genetics; D000328:Adult; D045744:Cell Line, Tumor; D005260:Female; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation / Q000502:physiology; D006801:Humans; D008214:Lymphocytes / Q000166:cytology / Q000378:metabolism*; D008297:Male; D009000:Monocytes / Q000166:cytology / Q000378:metabolism*; D027425:ATP-Binding Cassette, Sub-Family C Proteins / Q000096:biosynthesis* / Q000235:genetics; D009363:Neoplasm Proteins / Q000096:biosynthesis* / Q000235:genetics; D009928:Organ Specificity / Q000502:physiology; D012333:RNA, Messenger / Q000096:biosynthesis* / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D018435:ATP Binding Cassette Transporter, Subfamily B; D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D000070997:ATP Binding Cassette Transporter, Subfamily G, Member 2; D018528:ATP-Binding Cassette Transporters; D027425:ATP-Binding Cassette, Sub-Family C Proteins; D009363:Neoplasm Proteins; D012333:RNA, Messenger; C513055:ABCB1 protein, human; C116614:ABCG2 protein, human; C421109:multidrug resistance-associated protein 1