scholarly journals Dopamine Modulates the Susceptibility of Striatal Neurons to 3-Nitropropionic Acid in the Rat Model of Huntington’s Disease

1998 ◽  
Vol 18 (23) ◽  
pp. 10116-10127 ◽  
Author(s):  
David S. Reynolds ◽  
Rebecca J. Carter ◽  
A. Jennifer Morton
2007 ◽  
Vol 26 (2) ◽  
pp. 375-384 ◽  
Author(s):  
Shilpa Ramaswamy ◽  
Jodi L. McBride ◽  
Christopher D. Herzog ◽  
Eugene Brandon ◽  
Mehdi Gasmi ◽  
...  

2020 ◽  
Vol 48 (2) ◽  
pp. 709-717
Author(s):  
Srinivasa Subramaniam

Mechanisms responsible for neuronal vulnerability in the brain remain unclear. Striatal neurons are preferentially damaged by 3-nitropropionic acid (3-NP), a mitochondrial complex-II inhibitor, causing striatal damage reminiscent of Huntington's disease (HD), but the mechanisms of the selectivity are not as well understood. We have discovered that Rhes, a protein enriched in the striatum, removes mitochondria via the mitophagy process. The process becomes intensified in the presence of 3-NP, thereby eliminating most of the mitochondria from the striatum. We put forward the hypothesis that Rhes acts as a ‘mitophagy ligand' in the brain and promotes mitophagy via NIX, a mitophagy receptor. Since Rhes interacts and promotes toxicity in association with mutant huntingtin (mHTT), the genetic cause of HD, it is tempting to speculate on whether the exaggerated mitophagy may be a contributing factor to the striatal lesion found in HD. Thus, Rhes-mediated exaggerated mitophagy may act as a weapon of striatal destruction in the brain.


2008 ◽  
Vol 26 (7) ◽  
pp. 665-671 ◽  
Author(s):  
Carme Pelegrí ◽  
Joaquim Duran‐Vilaregut ◽  
Jaume Valle ◽  
Natàlia Crespo‐Biel ◽  
Isidre Ferrer ◽  
...  

2015 ◽  
Vol 36 (3) ◽  
pp. 311-322 ◽  
Author(s):  
Yan Gao ◽  
Shi-feng Chu ◽  
Jian-ping Li ◽  
Zhao Zhang ◽  
Jia-qing Yan ◽  
...  

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