Early-onset metabolic syndrome in mice lacking the intestinal uric acid transporter SLC2A9

Brian J DeBosch, Oliver Kluth, Hideji Fujiwara, Annette Schürmann and Kelle Moley ()
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Brian J DeBosch: BJC Institute of Health, Washington University School of Medicine
Oliver Kluth: German Institute of Human Nutrition Potsdam-Rehbruecke
Hideji Fujiwara: BJC Institute of Health, Washington University School of Medicine
Annette Schürmann: German Institute of Human Nutrition Potsdam-Rehbruecke
Kelle Moley: BJC Institute of Health, Washington University School of Medicine

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract Excess circulating uric acid, a product of hepatic glycolysis and purine metabolism, often accompanies metabolic syndrome. However, whether hyperuricaemia contributes to the development of metabolic syndrome or is merely a by-product of other processes that cause this disorder has not been resolved. In addition, how uric acid is cleared from the circulation is incompletely understood. Here we present a genetic model of spontaneous, early-onset metabolic syndrome in mice lacking the enterocyte urate transporter Glut9 (encoded by the SLC2A9 gene). Glut9-deficient mice develop impaired enterocyte uric acid transport kinetics, hyperuricaemia, hyperuricosuria, spontaneous hypertension, dyslipidaemia and elevated body fat. Allopurinol, a xanthine oxidase inhibitor, can reverse the hypertension and hypercholesterolaemia. These data provide evidence that hyperuricaemia per se could have deleterious metabolic sequelae. Moreover, these findings suggest that enterocytes may regulate whole-body metabolism, and that enterocyte urate metabolism could potentially be targeted to modulate or prevent metabolic syndrome.

Date: 2014
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DOI: 10.1038/ncomms5642

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