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PLoS By Category | Recent PLoS Articles
Nephrology - Pharmacology - Surgery

Prevention of Acute Kidney Injury by Tauroursodeoxycholic Acid in Rat and Cell Culture Models
Published: Friday, November 09, 2012
Author: Sandeep Gupta et al.

by Sandeep Gupta, Shunan Li, Md. Joynal Abedin, Kajohnsak Noppakun, Lawrence Wang, Tarundeep Kaur, Behzad Najafian, Cecília M. P. Rodrigues, Clifford J. Steer

Background

Acute kidney injury (AKI) has grave short- and long-term consequences. Often the onset of AKI is predictable, such as following surgery that compromises blood flow to the kidney. Even in such situations, present therapies cannot prevent AKI. As apoptosis is a major form of cell death following AKI, we determined the efficacy and mechanisms of action of tauroursodeoxycholic acid (TUDCA), a molecule with potent anti-apoptotic and pro-survival properties, in prevention of AKI in rat and cell culture models. TUDCA is particularly attractive from a translational standpoint, as it has a proven safety record in animals and humans.

Methodology/Principal Findings

We chose an ischemia-reperfusion model in rats to simulate AKI in native kidneys, and a human kidney cell culture model to simulate AKI associated with cryopreservation in transplanted kidneys. TUDCA significantly ameliorated AKI in the test models due to inhibition of the mitochondrial pathway of apoptosis and upregulation of survival pathways.

Conclusions

This study sets the stage for testing TUDCA in future clinical trials for prevention of AKI, an area that needs urgent attention due to lack of effective therapies.

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