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2016 ; 6
(ä): 26715
Nephropedia Template TP
Jansen J
; Fedecostante M
; Wilmer MJ
; Peters JG
; Kreuser UM
; van den Broek PH
; Mensink RA
; Boltje TJ
; Stamatialis D
; Wetzels JF
; van den Heuvel LP
; Hoenderop JG
; Masereeuw R
Sci Rep
2016[May]; 6
(ä): 26715
PMID27242131
show ga
The development of a biotechnological platform for the removal of waste products
(e.g. uremic toxins), often bound to proteins in plasma, is a prerequisite to
improve current treatment modalities for patients suffering from end stage renal
disease (ESRD). Here, we present a newly designed bioengineered renal tubule
capable of active uremic toxin secretion through the concerted action of
essential renal transporters, viz. organic anion transporter-1 (OAT1), breast
cancer resistance protein (BCRP) and multidrug resistance protein-4 (MRP4).
Three-dimensional cell monolayer formation of human conditionally immortalized
proximal tubule epithelial cells (ciPTEC) on biofunctionalized hollow fibers with
maintained barrier function was demonstrated. Using a tailor made flow system,
the secretory clearance of human serum albumin-bound uremic toxins, indoxyl
sulfate and kynurenic acid, as well as albumin reabsorption across the renal
tubule was confirmed. These functional bioengineered renal tubules are promising
entities in renal replacement therapies and regenerative medicine, as well as in
drug development programs.
|*Tissue Engineering
[MESH]
|ATP Binding Cassette Transporter, Subfamily G, Member 2/genetics/*metabolism
[MESH]