Abstract:
:Recent genome-wide association studies have revealed some genetic loci associated with serum uric acid levels and susceptibility to gout/hyperuricemia which contain potential candidates of physiologically important urate transporters. One of these novel loci is located upstream of SGK1 and SLC2A12, suggesting that variations in these genes increase the risks of hyperuricemia and gout. We herein focused on SLC2A12 encoding a transporter, GLUT12, the physiological function of which remains unclear. As GLUT12 belongs to the same protein family as a well-recognized urate transporter GLUT9, we hypothesized that GLUT12 mediates membrane transport of urate. Therefore, we conducted functional assays and analyzed Glut12 knockout hyperuricemia model mice, generated using the CRISPR-Cas9 system. Our results revealed that GLUT12 acts as a physiological urate transporter and its dysfunction elevates the blood urate concentration. This study provides insights into the deeper understanding of the urate regulatory system in the body, which is also important for pathophysiology of gout/hyperuricemia.
journal_name
Proc Natl Acad Sci U S Aauthors
Toyoda Y,Takada T,Miyata H,Matsuo H,Kassai H,Nakao K,Nakatochi M,Kawamura Y,Shimizu S,Shinomiya N,Ichida K,Hosoyamada M,Aiba A,Suzuki Hdoi
10.1073/pnas.2006958117subject
Has Abstractpub_date
2020-08-04 00:00:00pages
18175-18177issue
31eissn
0027-8424issn
1091-6490pii
2006958117journal_volume
117pub_type
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