Perturbations of ubiquitin-proteasome-mediated proteolysis in aging and Alzheimer's disease

AN Hegde, SG Smith, LM Duke, A Pourquoi… - Frontiers in aging …, 2019 - frontiersin.org
The ubiquitin-proteasome pathway (UPP) has multiple roles in the normal nervous system,
including the development of synaptic connections and synaptic plasticity. Research over …

The ubiquitin system in Alzheimer's disease

LD Harris, S Jasem, JDF Licchesi - Proteostasis and Disease: From Basic …, 2020 - Springer
Alzheimer's disease (AD) is the most common form of dementia, most prevalent in the
elderly population and has a significant impact on individuals and their family as well as the …

The USP46 complex deubiquitylates LRP6 to promote Wnt/β-catenin signaling

VH Ng, Z Spencer, LR Neitzel, A Nayak… - Nature …, 2023 - nature.com
The relative abundance of Wnt receptors plays a crucial role in controlling Wnt signaling in
tissue homeostasis and human disease. While the ubiquitin ligases that ubiquitylate Wnt …

The USP46 deubiquitylase complex increases Wingless/Wnt signaling strength by stabilizing Arrow/LRP6

ZT Spencer, VH Ng, H Benchabane… - Nature …, 2023 - nature.com
The control of Wnt receptor abundance is critical for animal development and to prevent
tumorigenesis, but the mechanisms that mediate receptor stabilization remain uncertain. We …

Amyloid-β induces AMPA receptor ubiquitination and degradation in primary neurons and human brains of Alzheimer's disease

Y Zhang, O Guo, Y Huo, G Wang… - Journal of Alzheimer's …, 2018 - content.iospress.com
As the primary mediator for synaptic transmission, AMPA receptors (AMPARs) are crucial for
synaptic plasticity and higher brain functions. A downregulation of AMPAR expression has …

Regulation of AMPA receptor trafficking by protein ubiquitination

J Widagdo, S Guntupalli, SE Jang… - Frontiers in Molecular …, 2017 - frontiersin.org
The molecular mechanisms underlying plastic changes in the strength and connectivity of
excitatory synapses have been studied extensively for the past few decades and remain the …

The autism protein Ube3A/E6AP remodels neuronal dendritic arborization via caspase-dependent microtubule destabilization

N Khatri, JP Gilbert, Y Huo, R Sharaflari… - Journal of …, 2018 - Soc Neuroscience
UBE3A gene copy number variation and the resulting overexpression of the protein E6AP is
directly linked to autism spectrum disorders (ASDs). However, the underlying cellular and …

Schizophrenia-associated NRXN1 deletions induce developmental-timing- and cell-type-specific vulnerabilities in human brain organoids

R Sebastian, K Jin, N Pavon, R Bansal, A Potter… - Nature …, 2023 - nature.com
De novo mutations and copy number deletions in NRXN1 (2p16. 3) pose a significant risk for
schizophrenia (SCZ). It is unclear how NRXN1 deletions impact cortical development in a …

Deubiquitinases in neurodegeneration

AI Bello, R Goswami, SL Brown, K Costanzo, T Shores… - Cells, 2022 - mdpi.com
Ubiquitination refers to the conjugation of the ubiquitin protein (a small protein highly
conserved among eukaryotes) to itself or to other proteins through differential use of …

Perturbed proteostasis in autism spectrum disorders

SR Louros, EK Osterweil - Journal of neurochemistry, 2016 - Wiley Online Library
Dynamic changes in synaptic strength rely on de novo protein synthesis and protein
degradation by the ubiquitin proteasome system (UPS). Disruption of either of these cellular …