http://purl.uniprot.org/citations/21719246 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
http://purl.uniprot.org/citations/21719246 | http://www.w3.org/2000/01/rdf-schema#comment | "PurposeOvarian cancer remains a deadly malignancy because most patients develop recurrent disease that is resistant to chemotherapy. Organic anion-transporting polypeptides (OATPs) mediate the uptake of clinically important drugs thereby effecting intracellular drug accumulation. In this study, we investigated whether OATPs may also contribute to paclitaxel transport in estrogen-responsive and estrogen-independent ovarian carcinoma cell lines and tumor tissue.MethodsExpression of all 11 human OATPs in human ovarian cancer tissue samples and in the ovarian carcinoma cell lines OVCAR-3 and SK-OV-3 was investigated using real-time RT-PCR. Kinetic analysis of paclitaxel uptake was characterized in both cell lines and in OATP-transfected Xenopus laevis oocytes. Cytotoxicity of paclitaxel in OVCAR-3, SK-OV-3 and OATP1B1- and OATP1B3-transfected SK-OV-3 cells was performed using the CellTiter-Glo assay.ResultsOATP1B1 and OATP1B3 are active paclitaxel transporters in transfected X. laevis oocytes. Real-time RT-PCR analysis revealed expression of both OATPs in human ovarian cancer tissue specimens and in cancer cell lines. The higher mRNA levels for OATP1B1 and OATP1B3 found in SK-OV-3 cells correlated with higher initial uptake rates for paclitaxel. In addition, cytotoxicity studies with OATP1B1- and OATP1B3-transfected SK-OV-3 cells demonstrated lower IC(50) values compared to cells transfected with the empty vector.ConclusionsOur results revealed OATP1B1 and OATP1B3 as high-affinity paclitaxel transporters expressed in ovarian cancer cell lines and tumor tissues, suggesting a role for these polypeptides in the disposition of paclitaxel during therapy."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.org/dc/terms/identifier | "doi:10.1016/j.biopha.2011.04.031"xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Stieger B."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Zeillinger R."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Hering S."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Svoboda M."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Tong D."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Thalhammer T."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Jager W."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Wlcek K."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/author | "Taferner B."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/date | "2011"xsd:gYear |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/name | "Biomed Pharmacother"xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/pages | "417-426"xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/title | "Expression of organic anion-transporting polypeptides 1B1 and 1B3 in ovarian cancer cells: relevance for paclitaxel transport."xsd:string |
http://purl.uniprot.org/citations/21719246 | http://purl.uniprot.org/core/volume | "65"xsd:string |
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