Copper homeostasis and neurodegenerative disorders (Alzheimer's, prion, and Parkinson's diseases and amyotrophic lateral sclerosis)

E Gaggelli, H Kozlowski, D Valensin… - Chemical …, 2006 - ACS Publications
Copper is too redox active to exist in an unbound form in the cell without causing oxidative
damage: an upper limit of 10-18 M for the free concentration of Cu (II) in unstressed cells has …

α-Synuclein misfolding and aggregation: Implications in Parkinson's disease pathogenesis

S Mehra, S Sahay, SK Maji - Biochimica et Biophysica Acta (BBA)-Proteins …, 2019 - Elsevier
Abstract α-Synuclein (α-Syn) has been extensively studied for its structural and biophysical
properties owing to its pathophysiological role in Parkinson's disease (PD). Lewy bodies …

EGCG remodels mature α-synuclein and amyloid-β fibrils and reduces cellular toxicity

J Bieschke, J Russ, RP Friedrich… - Proceedings of the …, 2010 - National Acad Sciences
Protein misfolding and formation of β-sheet-rich amyloid fibrils or aggregates is related to
cellular toxicity and decay in various human disorders including Alzheimer's and Parkinson's …

[HTML][HTML] Polyamines in aging and disease

N Minois, D Carmona-Gutierrez, F Madeo - Aging (albany NY), 2011 - ncbi.nlm.nih.gov
Polyamines are polycations that interact with negatively charged molecules such as DNA,
RNA and proteins. They play multiple roles in cell growth, survival and proliferation …

Polyamines in Parkinson's disease: balancing between neurotoxicity and neuroprotection

S Vrijsen, M Houdou, A Cascalho… - Annual Review of …, 2023 - annualreviews.org
The polyamines putrescine, spermidine, and spermine are abundant polycations of vital
importance in mammalian cells. Their cellular levels are tightly regulated by degradation …

Physicochemical properties of cells and their effects on intrinsically disordered proteins (IDPs)

FX Theillet, A Binolfi, T Frembgen-Kesner… - Chemical …, 2014 - ACS Publications
It has long been axiomatic that a protein's structure determines its function. Intrinsically
disordered proteins (IDPs) and disordered protein regions (IDRs) defy this structure …

Metabolic alterations in Parkinson's disease astrocytes

TM Sonninen, RH Hämäläinen, M Koskuvi… - Scientific reports, 2020 - nature.com
In Parkinsons disease (PD), the loss of dopaminergic (DA) neurons in the substantia nigra
pars compacta is associated with Lewy bodies arising from the accumulation of alpha …

Biomolecular condensates can both accelerate and suppress aggregation of α-synuclein

WP Lipiński, BS Visser, I Robu, MAA Fakhree… - Science …, 2022 - science.org
Biomolecular condensates present in cells can fundamentally affect the aggregation of
amyloidogenic proteins and play a role in the regulation of this process. While liquid-liquid …

Map** long-range interactions in α-synuclein using spin-label NMR and ensemble molecular dynamics simulations

MM Dedmon, K Lindorff-Larsen… - Journal of the …, 2005 - ACS Publications
The intrinsically disordered protein α-synuclein plays a key role in the pathogenesis of
Parkinson's disease (PD). We show here that the native state of α-synuclein consists of a …

Transcriptional and epigenetic regulation of autophagy in aging

LR Lapierre, C Kumsta, M Sandri, A Ballabio… - Autophagy, 2015 - Taylor & Francis
Macroautophagy is a major intracellular degradation process recognized as playing a
central role in cell survival and longevity. This multistep process is extensively regulated at …