37 Result(s)
within
Martin Ingelsson
Neurosciences
-
Article
Open AccessAstrocytic accumulation of tau fibrils isolated from Alzheimer’s disease brains induces inflammation, cell-to-cell propagation and neuronal impairment
Accumulating evidence highlights the involvement of astrocytes in Alzheimer’s disease (AD) progression. We have previously demonstrated that human iPSC-derived astrocytes ingest and modify synthetic tau fibril...
-
Article
Open AccessAltered amyloid-β structure markedly reduces gliosis in the brain of mice harboring the Uppsala APP deletion
Deposition of amyloid beta (Aβ) into plaques is a major hallmark of Alzheimer’s disease (AD). Different amyloid precursor protein (APP) mutations cause early-onset AD by altering the production or aggregation pro...
-
Article
Open AccessCryo-EM of Aβ fibrils from mouse models find tg-APPArcSwe fibrils resemble those found in patients with sporadic Alzheimer’s disease
The use of transgenic mice displaying amyloid-β (Aβ) brain pathology has been essential for the preclinical assessment of new treatment strategies for Alzheimer’s disease. However, the properties of Aβ in such...
-
Article
Open AccessLevels of inflammatory cytokines MCP-1, CCL4, and PD-L1 in CSF differentiate idiopathic normal pressure hydrocephalus from neurodegenerative diseases
Neuroinflammatory processes have been suggested to play a role in the pathophysiology of neurodegenerative diseases and post-hemorrhagic hydrocephalus, but have rarely been investigated in patients with idiopa...
-
Article
Open AccessAltered Distribution of SNARE Proteins in Primary Neurons Exposed to Different Alpha-Synuclein Proteoforms
Growing evidence indicates that the pathological alpha-synuclein (α-syn) aggregation in Parkinson’s disease (PD) and dementia with Lewy bodies (DLB) starts at the synapses. Physiologic α-syn is involved in reg...
-
Article
Open AccessAstrocytic uptake of neuronal corpses promotes cell-to-cell spreading of tau pathology
Tau deposits in astrocytes are frequently found in Alzheimer’s disease (AD) and other tauopathies. Since astrocytes do not express tau, the inclusions have been suggested to be of neuronal origin. However, the...
-
Article
Open AccessThe G51D SNCA mutation generates a slowly progressive α-synuclein strain in early-onset Parkinson’s disease
Unique strains of α-synuclein aggregates have been postulated to underlie the spectrum of clinical and pathological presentations seen across the synucleinopathies. Whereas multiple system atrophy (MSA) is ass...
-
Article
Open AccessGenome-wide meta-analysis for Alzheimer’s disease cerebrospinal fluid biomarkers
Amyloid-beta 42 (Aβ42) and phosphorylated tau (pTau) levels in cerebrospinal fluid (CSF) reflect core features of the pathogenesis of Alzheimer’s disease (AD) more directly than clinical diagnosis. Initiated b...
-
Article
Open AccessChallenges at the APOE locus: a robust quality control approach for accurate APOE genoty**
Genetic variants within the APOE locus may modulate Alzheimer’s disease (AD) risk independently or in conjunction with APOE*2/3/4 genotypes. Identifying such variants and mechanisms would importantly advance our ...
-
Article
Lack of fibrillar amyloid plaques but hypometabolism and astrogliosis in autosomal dominant variant AßPParc Alzheimer’s disease
-
Article
Open AccessAstroglial tracer BU99008 detects multiple binding sites in Alzheimer’s disease brain
With reactive astrogliosis being established as one of the hallmarks of Alzheimer’s disease (AD), there is high interest in develo** novel positron emission tomography (PET) tracers to detect early astrocyte...
-
Article
Open AccessAmyloid, tau, and astrocyte pathology in autosomal-dominant Alzheimer’s disease variants: AβPParc and PSEN1DE9
Autosomal-dominant Alzheimer’s disease (ADAD) may be associated with atypical amyloid beta deposits in the brain. In vivo amyloid imaging using 11C-Pittsburgh compound B (PiB) tracer has shown differences in bind...
-
Article
The existence of Aβ strains and their potential for driving phenotypic heterogeneity in Alzheimer’s disease
Reminiscent of the human prion diseases, there is considerable clinical and pathological variability in Alzheimer’s disease, the most common human neurodegenerative condition. As in prion disorders, protein mi...
-
Article
Open AccessCrosstalk between astrocytes and microglia results in increased degradation of α-synuclein and amyloid-β aggregates
Alzheimer’s disease (AD) and Parkinson’s disease (PD) are characterized by brain accumulation of aggregated amyloid-beta (Aβ) and alpha-synuclein (αSYN), respectively. In order to develop effective therapies, ...
-
Article
Open AccessAccumulation of alpha-synuclein within the liver, potential role in the clearance of brain pathology associated with Parkinson’s disease
Alpha-synuclein (α-syn) aggregation is the hallmark pathological lesion in brains of patients with Parkinson’s disease (PD) and related neurological disorders characterized as synucleinopathies. Accumulating e...
-
Article
Open AccessAltered levels of CSF proteins in patients with FTD, presymptomatic mutation carriers and non-carriers
The clinical presentations of frontotemporal dementia (FTD) are diverse and overlap with other neurological disorders. There are, as of today, no biomarkers in clinical practice for diagnosing the disorders. H...
-
Article
α-Synuclein strains target distinct brain regions and cell types
The clinical and pathological differences between synucleinopathies such as Parkinson’s disease and multiple system atrophy have been postulated to stem from unique strains of α-synuclein aggregates, akin to w...
-
Article
Open AccessBinding of α-synuclein oligomers to Cx32 facilitates protein uptake and transfer in neurons and oligodendrocytes
The intercellular transfer of alpha-synuclein (α-syn) has been implicated in the progression of Parkinson’s disease (PD) and multiple system atrophy (MSA). The cellular mechanisms underlying this process are n...
-
Article
Open AccessTransethnic meta-analysis of rare coding variants in PLCG2, ABI3, and TREM2 supports their general contribution to Alzheimer’s disease
Rare coding variants in TREM2, PLCG2, and ABI3 were recently associated with the susceptibility to Alzheimer’s disease (AD) in Caucasians. Frequencies and AD-associated effects of variants differ across ethniciti...
-
Article
Open AccessSecretion and Uptake of α-Synuclein Via Extracellular Vesicles in Cultured Cells
In Parkinson’s disease and other Lewy body disorders, the propagation of pathology has been accredited to the spreading of extracellular α-synuclein (α-syn). Although the pathogenic mechanisms are not fully un...
