The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An Update

Urate homeostasis in humans is a complex and highly heritable process that involves i.e., metabolic urate biosynthesis, renal urate reabsorption, as well as renal and extrarenal urate excretion. Importantly, disturbances in urate excretion are a common cause of hyperuricemia and gout. The majority o...

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Main Authors: Robert Eckenstaler, Ralf A. Benndorf
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/13/6678
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author Robert Eckenstaler
Ralf A. Benndorf
author_facet Robert Eckenstaler
Ralf A. Benndorf
author_sort Robert Eckenstaler
collection DOAJ
description Urate homeostasis in humans is a complex and highly heritable process that involves i.e., metabolic urate biosynthesis, renal urate reabsorption, as well as renal and extrarenal urate excretion. Importantly, disturbances in urate excretion are a common cause of hyperuricemia and gout. The majority of urate is eliminated by glomerular filtration in the kidney followed by an, as yet, not fully elucidated interplay of multiple transporters involved in the reabsorption or excretion of urate in the succeeding segments of the nephron. In this context, genome-wide association studies and subsequent functional analyses have identified the ATP-binding cassette (ABC) transporter ABCG2 as an important urate transporter and have highlighted the role of single nucleotide polymorphisms (SNPs) in the pathogenesis of reduced cellular urate efflux, hyperuricemia, and early-onset gout. Recent publications also suggest that ABCG2 is particularly involved in intestinal urate elimination and thus may represent an interesting new target for pharmacotherapeutic intervention in hyperuricemia and gout. In this review, we specifically address the involvement of ABCG2 in renal and extrarenal urate elimination. In addition, we will shed light on newly identified polymorphisms in ABCG2 associated with early-onset gout.
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spelling doaj.art-f321f7ef79284633a2cc149985b771c52023-11-22T01:12:04ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-06-012213667810.3390/ijms22136678The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An UpdateRobert Eckenstaler0Ralf A. Benndorf1Institute of Pharmacy, Martin Luther University Halle-Wittenberg, 06120 Halle, GermanyInstitute of Pharmacy, Martin Luther University Halle-Wittenberg, 06120 Halle, GermanyUrate homeostasis in humans is a complex and highly heritable process that involves i.e., metabolic urate biosynthesis, renal urate reabsorption, as well as renal and extrarenal urate excretion. Importantly, disturbances in urate excretion are a common cause of hyperuricemia and gout. The majority of urate is eliminated by glomerular filtration in the kidney followed by an, as yet, not fully elucidated interplay of multiple transporters involved in the reabsorption or excretion of urate in the succeeding segments of the nephron. In this context, genome-wide association studies and subsequent functional analyses have identified the ATP-binding cassette (ABC) transporter ABCG2 as an important urate transporter and have highlighted the role of single nucleotide polymorphisms (SNPs) in the pathogenesis of reduced cellular urate efflux, hyperuricemia, and early-onset gout. Recent publications also suggest that ABCG2 is particularly involved in intestinal urate elimination and thus may represent an interesting new target for pharmacotherapeutic intervention in hyperuricemia and gout. In this review, we specifically address the involvement of ABCG2 in renal and extrarenal urate elimination. In addition, we will shed light on newly identified polymorphisms in ABCG2 associated with early-onset gout.https://www.mdpi.com/1422-0067/22/13/6678goutearly-onset gouthyperuricemiaurateuric acidABCG2
spellingShingle Robert Eckenstaler
Ralf A. Benndorf
The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An Update
International Journal of Molecular Sciences
gout
early-onset gout
hyperuricemia
urate
uric acid
ABCG2
title The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An Update
title_full The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An Update
title_fullStr The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An Update
title_full_unstemmed The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An Update
title_short The Role of ABCG2 in the Pathogenesis of Primary Hyperuricemia and Gout—An Update
title_sort role of abcg2 in the pathogenesis of primary hyperuricemia and gout an update
topic gout
early-onset gout
hyperuricemia
urate
uric acid
ABCG2
url https://www.mdpi.com/1422-0067/22/13/6678
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