Abstract:
:Metabolic alteration constitutes a hallmark of cancer. Glycolysis and antioxidant pathways in kidney cancer are elevated, with frequent mutation of the VHL gene. Intratumor genetic heterogeneity has been recently demonstrated in kidney cancer. However, intratumor metabolic heterogeneity has not been investigated. Here, we used global metabolomics analysis and tissue slice tracer studies to demonstrate that different portions of a human primary kidney tumor possess different metabolic characteristics and drug sensitivity. Pyruvate levels were elevated and pyruvate metabolism was altered in some tumor sections. These observations indicated that pyruvate metabolism may constitute a possible vulnerability of kidney cancer; indeed, pyruvate stimulated the growth of primary kidney cancer cells and pharmacological inhibition of pyruvate transporters slowed the growth of patient-derived kidney tumors in mice. These findings deepen our understanding of the intratumor metabolic heterogeneity of kidney cancer and may inform novel therapeutic approaches in human kidney cancer.
journal_name
EBioMedicinejournal_title
EBioMedicineauthors
Okegawa T,Morimoto M,Nishizawa S,Kitazawa S,Honda K,Araki H,Tamura T,Ando A,Satomi Y,Nutahara K,Hara Tdoi
10.1016/j.ebiom.2017.04.009subject
Has Abstractpub_date
2017-05-01 00:00:00pages
31-38issn
2352-3964pii
S2352-3964(17)30152-4journal_volume
19pub_type
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