Publications associées à Formation and maintenance of Alzheimer's disease beta-amyloid plaques in the absence of microglia

Publications associées (32)

The Interdisciplinary Synergy Between Neurology and Psychiatry: Advancing Brain Health

The study of brain disorders has long been central to both neurology and psychiatry, with these two disciplines evolving as distinct yet deeply interconnected fields. In fact, these specialties often share overlapping symptoms, neural pathways, and treatme ...

MDPI AG2025

Method of preparation of amyloidogenic protein aggregates and uses thereof

Hilal Lashuel, Galina Limorenko

The invention relates to methods for the preparation of method of preparation of Tau aggregates, including fibrils, fibrillar species, soluble and insoluble oligomeric species, new Tau aggregates and uses thereof. The invention further relates to the uses ...

2024

Deconstructing and Reconstructing the Complexity of Tau pathology

Galina Limorenko

This thesis consists of four Chapters unified by a singular theme â how do we develop disease models that faithfully reproduce the pathology seen in patients suffering from neurodegenerative disorders associated with the Tau protein, such as Alzheimerâ ...

EPFL2023

Trans‐seeding of Alzheimer‐related tau protein by a yeast prion

Henning Paul-Julius Stahlberg

Abnormal tau protein aggregates constitute a hallmark of Alzheimer's disease. The mechanisms underlying the initiation of tau aggregation in sporadic neurodegeneration remain unclear. Here we investigate whether a non-human prion can seed tau aggregation. ...

2022

Enhancing mitochondrial quality control to fight neuromuscular degeneration in aging and disease

Mario Romani

Loss of mitochondrial function and proteostasis typify aging and age-associated degenerative disorders such as Alzheimer's disease and muscle aging. To date, no cure or preventive measure is available to manage these conditions. Alterations of cellular pro ...

EPFL2021

Molecular dissection of amyloid disaggregation by human HSP70

Paolo De Los Rios, Alessandro Barducci

The molecular steps that lead to the disaggregation of amyloid fibrils are shown to involve the synergistic action of HSP70 and its co-chaperones DNAJB1 and HSP110. ...

NATURE RESEARCH2020

Unraveling the complexity of amyloid polymorphism using gold nanoparticles and cryo-EM

Francesco Stellacci, Hilal Lashuel, Paulo Henrique Jacob Silva, Anass Chiki, Nadine Aït Bouziad, Urszula Beata Cendrowska, Zekiye Pelin Güven, Senthil Kumar Thangaraj, Sophie Vieweg

Increasing evidence suggests that amyloid polymorphism gives rise to different strains of amyloids with distinct toxicities and pathology-spreading properties. Validating this hypothesis is challenging due to a lack of tools and methods that allow for the ...

National Academy of Sciences2020

NAD+ boosting reduces age-associated amyloidosis and restores mitochondrial homeostasis in muscle

Changmyung Oh, Johan Auwerx, Hongbo Zhang, Hao Li, Vincenzo Sorrentino, Tanes Imamura de Lima, Mario Romani

Aging is characterized by loss of proteostasis and mitochondrial homeostasis. Here, we provide bioinformatic evidence of dysregulation of mitochondrial and proteostasis pathways in muscle aging and diseases. Moreover, we show accumulation of amyloid-like d ...

2021

A simple, versatile and robust centrifugation-based filtration protocol for the isolation and quantification of alpha-synuclein monomers, oligomers and fibrils: Towards improving experimental reproducibility in alpha-synuclein research

Hilal Lashuel, Anass Chiki, Muhammed Muazzam Kamil Syed, Sonia Donzelli

Increasing evidence suggests that the process of alpha-synuclein (alpha-syn) aggregation from monomers into amyloid fibrils and Lewy bodies, via oligomeric intermediates plays an essential role in the pathogenesis of different synucleinopathies, including ...

Wiley-Blackwell2020

Lewy body-associated proteins: Victims, instigators, or innocent bystanders? The case of AIMP2 and alpha-synuclein

Hilal Lashuel, Salvatore Novello

Lewy bodies (LBs), one of the neuropathological defining hallmarks of Parkinson's disease (PD), are composed of a complex mixture of alpha-synuclein (aSyn) filaments and hundreds of proteins, lipids, and membranous organelles. However, these proteins' role ...

2021

Pharmacological characterization of mutant huntingtin aggregate-directed PET imaging tracer candidates

Hilal Lashuel, Anass Chiki

Huntington's disease (HD) is caused by a CAG trinucleotide repeat expansion in the first exon of the huntingtin (HTT) gene coding for the huntingtin (HTT) protein. The misfolding and consequential aggregation of CAG-expanded mutant HTT (mHTT) underpin HD p ...

Nature Portfolio2021

Expert recommendation from the Swiss Amyloidosis Network (SAN) for systemic AL-amyloidosis

Andrea Cavalli, Alessio Mylonas

Systemic amyloidosis is a heterogeneous group of diseases associated with protein misfolding into insoluble beta-sheet rich structures that deposit extracellularly in different organs, eventually compromising their function. There are more than 30 differen ...

E M H SWISS MEDICAL PUBLISHERS LTD2020

Effects of sedimentation, microgravity, hydrodynamic mixing and air-water interface on alpha-synuclein amyloid formation

Giovanni Dietler, Giovanni Longo, Francesco Simone Ruggeri, Jiangtao Zhou

The formation of amyloid fibrils is a characterizing feature of a range of protein misfolding diseases, including Parkinson's disease. The propensity of native proteins to form such amyloid fibril, both in vitro and in vivo, is highly sensitive to the surr ...

2020

An integrative multi-omics approach reveals new central nervous system pathway alterations in Alzheimer's disease

Christopher Clark

Background Multiple pathophysiological processes have been described in Alzheimer's disease (AD). Their inter-individual variations, complex interrelations, and relevance for clinical manifestation and disease progression remain poorly understood. We hypot ...

2021

Diffusion MRI biomarkers of white matter microstructure vary nonmonotonically with increasing cerebral amyloid deposition

Ileana Ozana Jelescu

Beta amyloid (A beta) accumulation is the earliest pathological marker of Alzheimer's disease (AD), but early AD pathology also affects white matter (WM) integrity. We performed a cross-sectional study including 44 subjects (23 healthy controls and 21 mild ...

2020

Structural strains of misfolded tau protein define different diseases

Henning Paul-Julius Stahlberg

In diseases called tauopathies, misfolded tau proteins form aggregates called fibrils. Fibrils from nine different tauopathies show that tau misfolds in many ways, enabling the diseases to be classified according to fibril structure. ...

2021

To target Tau pathologies, we must embrace and reconstruct their complexities

Hilal Lashuel, Galina Limorenko

The accumulation of hyperphosphorylated fibrillar Tau aggregates in the brain is one of the defining hallmarks of Tauopathy diseases, including Alzheimer's disease. However, the primary events or molecules responsible for initiation of the pathological Tau ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2021

The Clustering of mApoE Anti-Amyloidogenic Peptide on Nanoparticle Surface Does Not Alter Its Performance in Controlling Beta-Amyloid Aggregation

Francesco Stellacci, Paulo Henrique Jacob Silva

The deposition of amyloid-beta (A beta) plaques in the brain is a significant pathological signature of Alzheimer's disease, correlating with synaptic dysfunction and neurodegeneration. Several compounds, peptides, or drugs have been designed to redirect o ...

2020

Discovery of 2-(4-(2-fluoroethoxy)piperidin-1-yl)-9-methyl-9H-pyrrolo[2,3-b:4,5-c']dipyridine ([18F]PI-2014) as PET tracer for the detection of pathological aggregated tau in Alzheimer's disease and other tauopathies

Andrea Pfeifer

The compound screening was initiated with a direct staining assay to identify compounds binding to Tau aggregates and not Abeta plaques using human brain sections derived from late stage Alzheimer's disease donors. The binding of Tau aggregate selective co ...

ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER2020

Application of anti-amyloid beta immunization using encapsulated cell technology in mouse models of Alzheimer's disease

Vanessa Laversenne

Alzheimer's disease (AD) is the most common form of dementia in the elderly. AD is characterized by the deposition of two aggregated proteins: Amyloid beta (Aß) and hyperphosphorylated tau. Accumulations of these proteins are thought to be the signature ...

EPFL2019