scholarly journals In vivo characterization of a bigenic fluorescent mouse model of Alzheimer's disease with neurodegeneration

2013 ◽  
Vol 521 (10) ◽  
pp. Spc1-Spc1 ◽  
Author(s):  
Sarah E. Crowe ◽  
Graham C.R. Ellis-Davies
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Model Of Alzheimer’S Disease ◽  
In Vivo Characterization

In Vivo Perturbation of Lysosomal Function Promotes Neurodegeneration in the PS1M146V/APPK670N,M671L Mouse Model of Alzheimer's Disease Pathology

2003 ◽  
pp. 687-695 ◽  
Author(s):  
Ralph A. Nixon ◽  
Paul M. Mathews ◽  
Anne M. Cataldo ◽  
Panaiyur S. Mohan ◽  
Stephen D. Schmidt ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Lysosomal Function ◽  
Model Of Alzheimer’S Disease

scholarly journals In vivo axonal transport rates decrease in a mouse model of Alzheimer's disease

NeuroImage ◽  
2007 ◽  
Vol 35 (4) ◽  
pp. 1401-1408 ◽  
Author(s):  
Karen Dell Brown Smith ◽  
Verena Kallhoff ◽  
Hui Zheng ◽  
Robia G. Pautler
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Axonal Transport ◽  
Model Of Alzheimer’S Disease

scholarly journals Increased levels of Stress-inducible phosphoprotein-1 accelerates amyloid-β deposition in a mouse model of Alzheimer’s disease

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Rachel E. Lackie ◽  
Jose Marques-Lopes ◽  
Valeriy G. Ostapchenko ◽  
Sarah Good ◽  
Wing-Yiu Choy ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Protein Quality ◽  
Amyloid Β ◽  
Amyloid Burden ◽  
C Elegans ◽  
Model Of Alzheimer’S Disease

Abstract Molecular chaperones and co-chaperones, which are part of the protein quality control machinery, have been shown to regulate distinct aspects of Alzheimer’s Disease (AD) pathology in multiple ways. Notably, the co-chaperone STI1, which presents increased levels in AD, can protect mammalian neurons from amyloid-β toxicity in vitro and reduced STI1 levels worsen Aβ toxicity in C. elegans. However, whether increased STI1 levels can protect neurons in vivo remains unknown. We determined that overexpression of STI1 and/or Hsp90 protected C. elegans expressing Aβ(3–42) against Aβ-mediated paralysis. Mammalian neurons were also protected by elevated levels of endogenous STI1 in vitro, and this effect was mainly due to extracellular STI1. Surprisingly, in the 5xFAD mouse model of AD, by overexpressing STI1, we find increased amyloid burden, which amplifies neurotoxicity and worsens spatial memory deficits in these mutants. Increased levels of STI1 disturbed the expression of Aβ-regulating enzymes (BACE1 and MMP-2), suggesting potential mechanisms by which amyloid burden is increased in mice. Notably, we observed that STI1 accumulates in dense-core AD plaques in both 5xFAD mice and human brain tissue. Our findings suggest that elevated levels of STI1 contribute to Aβ accumulation, and that STI1 is deposited in AD plaques in mice and humans. We conclude that despite the protective effects of STI1 in C. elegans and in mammalian cultured neurons, in vivo, the predominant effect of elevated STI1 is deleterious in AD.

Netrin-1 Interrupts Amyloid-β Amplification, Increases sAβPPα in vitro and in vivo, and Improves Cognition in a Mouse Model of Alzheimer’s Disease

2016 ◽  
Vol 52 (1) ◽  
pp. 223-242 ◽  
Author(s):  
Patricia R. Spilman ◽  
Veronique Corset ◽  
Olivia Gorostiza ◽  
Karen S. Poksay ◽  
Veronica Galvan ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Amyloid Β ◽  
Model Of Alzheimer’S Disease
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