Article Publish Status: FREE
Abstract Title:

Differential protein expression in metallothionein protection from depleted uranium-induced nephrotoxicity.

Abstract Source:

Sci Rep. 2016 Dec 14 ;6:38942. Epub 2016 Dec 14. PMID: 27966587

Abstract Author(s):

Yuhui Hao, Jiawei Huang, Cong Liu, Hong Li, Jing Liu, Yiping Zeng, Zhangyou Yang, Rong Li

Article Affiliation:

Yuhui Hao


The purpose of this study was to investigate the underlying mechanism of metallothionein (MT) protection from depleted uranium (DU) using a proteomics approach to search for a DU toxicity-differential protein. MT-/- and MT+/+ mice were administrated with a single dose of DU (10 mg/kg, i.p.) or equal volume of saline. After 4 days, protein changes in kidney tissues were evaluated using a proteomics approach. A total of 13 differentially expressed proteins were identified using two-dimensional electrophoresis and matrix-assisted laser desorption/ionization time-of-flightmass spectrometry. The validating results showed that the expression of aminoacylase-3 (ACY-3) and the mitochondrial ethylmalonic encephalopathy 1 (ETHE1) decreased significantly after DU exposure; in addition, the reduction in MT-/- mice was more significant than that in MT+/+ mice. The results also showed that exogenous ETHE1 or ACY-3 could increase the survival rate of human embryonic kidney 293 (HEK293) cells after DU exposure. A specific siRNA of ETHE1 significantly increased cell apoptosis rates after DU exposure, whereas exogenous ETHE1 significantly decreased cell apoptosis rates. In summary, ACY-3 and ETHE1 might involve in protection roles of MT. ETHE1 could be a new sensitive molecular target of DU-induced cell apoptosis.

Study Type : Animal Study
Additional Links
Adverse Pharmacological Actions : Renotoxic : CK(26) : AC(9)

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