Published in

Karger Publishers, Nephron, 4(138), p. 303-309, 2017

DOI: 10.1159/000485663

Links

Tools

Export citation

Search in Google Scholar

Renal PGC1α May Be Associated with Recovery after Delayed Graft Function

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

Full text: Unavailable

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

<b><i>Background:</i></b> Delayed renal graft function (DGF) contributes to the determination of length of hospitalization, risk of acute rejection, and graft loss. Existing tools aid the diagnosis of specific DGF etiologies such as antibody-mediated rejection, but markers of recovery have been elusive. The peroxisome proliferator gamma co-activator-1-alpha (PGC1α) is highly expressed in the renal tubule, regulates mitochondrial biogenesis, and promotes recovery from experimental acute kidney injury. <b><i>Objectives:</i></b> We aimed to determine the association between renal allograft PGC1α expression and recovery from delayed graft function. <b><i>Methods:</i></b> We retrospectively analyzed patients undergoing renal transplantation at a single center from January 1, 2008 to June 30, 2014. PGC1α expression was assessed by immunostaining and ultrastructural characteristics by transmission electron microscopy. Of 34 patients who underwent renal biopsy for DGF within 30 days of transplant, 21 were included for analysis. <b><i>Results:</i></b> Low PGC1α expression was associated with a significantly longer time on dialysis after transplant (median of 35.5 vs. 16 days, <i>p</i> &#x3c; 0.05) and a significantly higher serum creatinine (sCr) at 4 weeks after transplantation among those who discontinued dialysis (5 vs. 1.65 mg/dL, <i>p</i> &#x3c; 0.0001). Low PGC1α expression was not associated with higher sCr at 12 weeks after transplantation. Ultrastructural characteristics including apical membrane blebbing and necrotic luminal debris were not informative regarding clinical outcomes. <b><i>Conclusions:</i></b> These data suggest that higher PGC1α expression is associated with faster and more complete recovery from DGF. Mitochondrial biogenesis may be a therapeutic target for DGF. Larger studies are needed to validate these findings.