Title |
DNA methylation is associated with downregulation of the organic cation transporter OCT1 (SLC22A1) in human hepatocellular carcinoma
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Published in |
Genome Medicine, December 2011
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DOI | 10.1186/gm298 |
Pubmed ID | |
Authors |
Elke Schaeffeler, Claus Hellerbrand, Anne T Nies, Stefan Winter, Stephan Kruck, Ute Hofmann, Heiko van der Kuip, Ulrich M Zanger, Hermann Koepsell, Matthias Schwab |
Abstract |
Organic cation transporters (OCTs) determine not only physiological processes but are also involved in the cellular uptake of anticancer agents. Based on microarray analyses in hepatocellular carcinoma (HCC), SLC22A1/OCT1 mRNA seems to be downregulated, but systematic protein expression data are currently missing. Moreover, the underlying molecular mechanisms responsible for altered SLC22A1 expression in HCC are not fully understood. Therefore, we investigated the role of DNA methylation in the transcriptional regulation of the family members SLC22A1/OCT1, SLC22A2/OCT2 and SLC22A3/OCT3 in HCC. |
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