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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Front+Pharmacol
2017 ; 8
(ä): 370
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Indoxyl Sulfate Affects Glial Function Increasing Oxidative Stress and
Neuroinflammation in Chronic Kidney Disease: Interaction between Astrocytes and
Microglia
#MMPMID28659803
Adesso S
; Magnus T
; Cuzzocrea S
; Campolo M
; Rissiek B
; Paciello O
; Autore G
; Pinto A
; Marzocco S
Front Pharmacol
2017[]; 8
(ä): 370
PMID28659803
show ga
Indoxyl sulfate (IS) is a protein-bound uremic toxin resulting from the
metabolism of dietary tryptophan which accumulates in patients with impaired
renal function, such as chronic kidney disease (CKD). IS is a well-known
nephrovascular toxin but little is known about its effects on central nervous
system (CNS) cells. Considering the growing interest in the field of CNS
comorbidities in CKD, we studied the effect of IS on CNS cells. IS (15-60 ?M)
treatment in C6 astrocyte cells increased reactive oxygen species release and
decreased nuclear factor (erythroid-derived 2)-like 2 (Nrf2) activation, and heme
oxygenase-1 (HO-1) and NAD(P)H dehydrogenase quinone 1 expression. Moreover, IS
increased Aryl hydrocarbon Receptor (AhR) and Nuclear Factor-kB (NF-kB)
activation in these cells. Similiar observations were made in primary mouse
astrocytes and mixed glial cells. Inducible nitric oxide synthase and
cyclooxygenase-2 (COX-2) expression, tumor necrosis factor-? and interleukin-6
release and nitrotyrosine formation were increased by IS (15-60 ?M) in primary
mouse astrocytes and mixed glial cells. IS increased AhR and NF-kB nuclear
translocation and reduced Nrf2 translocation and HO-1 expression in primary glial
cells. In addition, IS induced cell death in neurons in a dose dependent fashion.
Injection of IS (800 mg/kg, i.p.) into mice induced histological changes and
increased COX-2 expression and nitrotyrosine formation in thebrain tissue. Taken
together, our results show a significant contribution of IS in generating a
neurotoxic enviroment and it could also have a potential role in
neurodegeneration. IS could be considered also a potential therapeutical target
for CKD-associated neurodegenerative complications.