Trasferrin receptor 2 gene regulation by microRNA 221 in SH-SY5Y cells treated with MPP+ as Parkinson's disease cellular model

被引:33
|
作者
Asci, Roberta [1 ,2 ]
Vallefuoco, Fara [1 ,2 ]
Andolfo, Immacolata [1 ,2 ]
Bruno, Mariasole [1 ,2 ]
De Falco, Luigia [1 ,2 ]
Iolascon, Achille [1 ,2 ]
机构
[1] Biotecnol Avanzate, CEINGE, I-80145 Naples, Italy
[2] Univ Naples Federico II, Dept Biochem & Med Biotechnol, Naples, Italy
关键词
TfR2; MicroRNA-221; Parkinson's disease; Iron metabolism; SUBSTANTIA-NIGRA; IRON CONTENT; ASSOCIATION; DOPAMINE;
D O I
10.1016/j.neures.2013.09.003
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Parkinson's disease (PD) is one of the most frequent human neurodegenerations. The neurodegeneration in PD is related to cellular iron increase but the mechanisms involved in iron accumulation remain unclear. Transferrin receptor type 2 (TFR2) is a protein expressed on cell membrane and involved in the cellular iron uptake. We hypothesized that microRNA 221 could regulate the expression of TfR2 in an in vitro model of Parkinson's disease, SH-SY5Y cells treated with MPP+. The miRNA 221 was selected by in silica analysis of several miRNAs predicted to target the TFR2 gene in SHSY5Y cells treated with MPP+. Taqman miRNA assay was used to evaluate the expression of the selected miRNAs. Using a luciferase assay we demonstrated the inhibition of TFR2 by miRNA 221. We show that in PD cellular model, TFR2 expression is regulated by miRNA 221. TFR2 and miR 221 are inversely correlated in SHSY5Y cells during the treatment with MPP+. Moreover, overexpression of miRNA 221 decreases the expression of TFR2, respectively, at the mRNA and protein levels. The inhibition of endogenous miRNA 221 also is able to regulate TFR2. These data suggest that miRNA 221 regulate TFR2 in PD model. (C) 2013 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.
引用
收藏
页码:121 / 127
页数:7
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