Whether mutations in metabolic pathways contribute to the pathogenesisof cancer is controversial.1,2 Cancer cells have long been notedto preferentially metabolize glucose through glycolysis, a discoverythat has been translated to the clinic through positron-emission-tomographyimaging of 18F-deoxyglucose uptake in tumors. Moreover, recentstudies have uncovered recurrent somatic mutations in four genesinvolved in the metabolism of mitochondrial citrate that eithercause or predispose cells to become malignant.
In this issue of the Journal, Yan and colleagues3 report that70% or more of low-grade gliomas bear mutations in one of twoNADP+-dependent isocitrate dehydrogenase enzymes (IDH1 and IDH2).. . . [Full Text of this Article]
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From the University of Pennsylvania School of Medicine, Philadelphia.
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