Results 31 to 40 of about 14,329 (183)

Solution structure of polyglutamine tracts in GST‐polyglutamine fusion proteins

open access: yesFEBS Letters, 2002
Aggregation of expanded polyglutamine (polyQ) seems to be the cause of various genetic neurodegenerative diseases. Relatively little is known as yet about the polyQ structure and the mechanism that induces aggregation. We have characterised the solution structure of polyQ in a proteic context using a model system based on glutathione S‐transferase ...
Masino L   +5 more
openaire   +3 more sources

Pathogenetic Mechanisms Underlying Spinocerebellar Ataxia Type 3 Are Altered in Primary Oligodendrocyte Culture

open access: yesCells, 2022
Emerging evidence has implicated non-neuronal cells, particularly oligodendrocytes, in the pathophysiology of many neurodegenerative diseases, including Alzheimer’s disease, Parkinson’s disease, amyotrophic lateral sclerosis, Huntington’s disease and ...
Kristen H. Schuster   +2 more
doaj   +1 more source

Insights on Microsatellite Characteristics, Evolution, and Function From the Social Amoeba Dictyostelium discoideum

open access: yesFrontiers in Neuroscience, 2022
Microsatellites are repetitive sequences commonly found in the genomes of higher organisms. These repetitive sequences are prone to expansion or contraction, and when microsatellite expansion occurs in the regulatory or coding regions of genes this can ...
Felicia N. Williams   +3 more
doaj   +1 more source

Are Polyglutamine Diseases Expanding? [PDF]

open access: yesNeuron, 2011
It remains a matter of speculation as to whether the sense CUG-containing RNA and/or the antisense CAG-encoding polyglutamine peptide serves as the pathogenic moiety in Huntington's disease like-2 (HDL2). In this issue of Neuron, Wilburn et al. show that in a HDL2 mouse model, the polyglutamine peptide drives disease progression.
openaire   +2 more sources

Activation of p38MAPK contributes to expanded polyglutamine-induced cytotoxicity.

open access: yesPLoS ONE, 2008
BackgroundThe signaling pathways that may modulate the pathogenesis of diseases induced by expanded polyglutamine proteins are not well understood.Methodologies/principal findingsHerein we demonstrate that expanded polyglutamine protein cytotoxicity is ...
Maria Tsirigotis   +4 more
doaj   +1 more source

Brain-Derived Neurotrophic Factor Dysregulation as an Essential Pathological Feature in Huntington’s Disease: Mechanisms and Potential Therapeutics

open access: yesBiomedicines, 2023
Brain-derived neurotrophic factor (BDNF) is a major neurotrophin whose loss or interruption is well established to have numerous intersections with the pathogenesis of progressive neurological disorders.
Andrew Speidell   +2 more
doaj   +1 more source

Polyglutamine Ataxias: Our Current Molecular Understanding and What the Future Holds for Antisense Therapies

open access: yesBiomedicines, 2021
Polyglutamine (polyQ) ataxias are a heterogenous group of neurological disorders all caused by an expanded CAG trinucleotide repeat located in the coding region of each unique causative gene.
Craig S. McIntosh   +3 more
doaj   +1 more source

Autophagy and polyglutamine diseases

open access: yesProgress in Neurobiology, 2012
In polyglutamine diseases, an abnormally elongated polyglutamine tract results in protein misfolding and accumulation of intracellular aggregates. The length of the polyglutamine expansion correlates with the tendency of the mutant protein to aggregate, as well as with neuronal toxicity and earlier disease onset.
Jimenez-Sanchez, Maria   +3 more
openaire   +4 more sources

d-Polyglutamine Amyloid Recruits l-Polyglutamine Monomers and Kills Cells [PDF]

open access: yesJournal of Molecular Biology, 2014
Polyglutamine (polyQ) amyloid fibrils are observed in disease tissue and have been implicated as toxic agents responsible for neurodegeneration in expanded CAG repeat diseases such as Huntington's disease. Despite intensive efforts, the mechanism of amyloid toxicity remains unknown. As a novel approach to probing polyQ toxicity, we investigate here how
Karunakar, Kar   +4 more
openaire   +2 more sources

The Ubiquitin-Proteasome System in Huntington’s Disease: Are Proteasomes Impaired, Initiators of Disease, or Coming to the Rescue?

open access: yesBiochemistry Research International, 2012
Huntington’s disease is a progressive neurodegenerative disease, caused by a polyglutamine expansion in the huntingtin protein. A prominent hallmark of the disease is the presence of intracellular aggregates initiated by N-terminal huntingtin fragments ...
Sabine Schipper-Krom   +2 more
doaj   +1 more source

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