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- W1984882020 abstract "Abstract Through unbiased metabolomics, we identified elevations of the metabolite 2-hydroxyglutarate (2HG) in renal cell carcinoma (RCC). 2HG can inhibit 2-oxoglutaratre (2-OG)–dependent dioxygenases that mediate epigenetic events, including DNA and histone demethylation. 2HG accumulation, specifically the d enantiomer, can result from gain-of-function mutations of isocitrate dehydrogenase (IDH1, IDH2) found in several different tumors. In contrast, kidney tumors demonstrate elevations of the l enantiomer of 2HG (l-2HG). High-2HG tumors demonstrate reduced DNA levels of 5-hydroxymethylcytosine (5hmC), consistent with 2HG-mediated inhibition of ten-eleven translocation (TET) enzymes, which convert 5-methylcytosine (5mC) to 5hmC. l-2HG elevation is mediated in part by reduced expression of l-2HG dehydrogenase (L2HGDH). L2HGDH reconstitution in RCC cells lowers l-2HG and promotes 5hmC accumulation. In addition, L2HGDH expression in RCC cells reduces histone methylation and suppresses in vitro tumor phenotypes. Our report identifies l-2HG as an epigenetic modifier and putative oncometabolite in kidney cancer. Significance: Here, we report elevations of the putative oncometabolite l-2HG in the most common subtype of kidney cancer and describe a novel mechanism for the regulation of DNA 5hmC levels. Our findings provide new insight into the metabolic basis for the epigenetic landscape of renal cancer. Cancer Discov; 4(11); 1290–8. ©2014 AACR. This article is highlighted in the In This Issue feature, p. 1243" @default.
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- W1984882020 date "2014-11-01" @default.
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- W1984882020 title "<scp>l</scp>-2-Hydroxyglutarate: An Epigenetic Modifier and Putative Oncometabolite in Renal Cancer" @default.
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- W1984882020 doi "https://doi.org/10.1158/2159-8290.cd-13-0696" @default.
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