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2018 ; 8
(1
): 11147
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Identification of ABCG2 as an Exporter of Uremic Toxin Indoxyl Sulfate in Mice
and as a Crucial Factor Influencing CKD Progression
#MMPMID30042379
Takada T
; Yamamoto T
; Matsuo H
; Tan JK
; Ooyama K
; Sakiyama M
; Miyata H
; Yamanashi Y
; Toyoda Y
; Higashino T
; Nakayama A
; Nakashima A
; Shinomiya N
; Ichida K
; Ooyama H
; Fujimori S
; Suzuki H
Sci Rep
2018[Jul]; 8
(1
): 11147
PMID30042379
show ga
Chronic kidney disease (CKD) patients accumulate uremic toxins in the body,
potentially require dialysis, and can eventually develop cardiovascular disease.
CKD incidence has increased worldwide, and preventing CKD progression is one of
the most important goals in clinical treatment. In this study, we conducted a
series of in vitro and in vivo experiments and employed a metabolomics approach
to investigate CKD. Our results demonstrated that ATP-binding cassette
transporter subfamily G member 2 (ABCG2) is a major transporter of the uremic
toxin indoxyl sulfate. ABCG2 regulates the pathophysiological excretion of
indoxyl sulfate and strongly affects CKD survival rates. Our study is the first
to report ABCG2 as a physiological exporter of indoxyl sulfate and identify ABCG2
as a crucial factor influencing CKD progression, consistent with the observed
association between ABCG2 function and age of dialysis onset in humans. The above
findings provided valuable knowledge on the complex regulatory mechanisms that
regulate the transport of uremic toxins in our body and serve as a basis for
preventive and individualized treatment of CKD.
|ATP Binding Cassette Transporter, Subfamily G, Member 2/genetics/*metabolism
[MESH]