Results 81 to 90 of about 24,368 (229)
Abstract figure legend Mitochondria are highly dynamic organelles that continuously remodel their architecture through coordinated cycles of fusion and fission. This review examines the four key GTPases that orchestrate mitochondrial dynamics in mammals: MFN1, MFN2, OPA1, and DRP1.
Rémi Chaney +4 more
wiley +1 more source
Podoplanin is a substrate of presenilin-1/γ-secretase [PDF]
Podoplanin (PDPN) is a mucin-like transmembrane glycoprotein that plays an important role in development and cancer. Here, we provide evidence that the intracellular domain (ICD) of podoplanin is released into the cytosol following a sequential proteolytic processing by a metalloprotease and γ-secretase.
Yurrita, María M. +5 more
openaire +3 more sources
SNPs in SH3RF3 decrease the age of onset of Alzheimer's disease (AD). Reduced SH3RF3 blunts human microglial JNK and NFkB signaling and downstream inflammatory cytokine production, which may partially explain how SH3RF3 SNPs protect against AD. ABSTRACT Understanding how high‐risk individuals are protected from Alzheimer's disease (AD) may illuminate ...
Ronak Patel +13 more
wiley +1 more source
Overexpression in Neurons of Human Presenilin-1 or a Presenilin-1 Familial Alzheimer Disease Mutant Does Not Enhance Apoptosis [PDF]
Programmed cell death, or apoptosis, has been implicated in Alzheimer’s disease (AD). DNA damage was assessed in primary cortical neurons infected with herpes simplex virus (HSV) vectors expressing the familial Alzheimer’s disease (FAD) gene presenilin-1 (PS-1) or an FAD mutant of this gene, A246E.
S, Bursztajn +6 more
openaire +2 more sources
ABSTRACT Alzheimer's disease (AD) is a debilitating neurodegenerative condition characterized by progressive cognitive impairment, memory deterioration, and neuronal dysfunction. Its complex pathophysiology involves multiple interlinked processes, including amyloid‐β (Aβ) aggregation, tau hyperphosphorylation, oxidative stress, neuroinflammation ...
Amandeep Thakur +6 more
wiley +1 more source
Dual Roles of Proteasome in the Metabolism of Presenilin 1 [PDF]
Abstract : Presenilin 1 (PS1) has been identified as a causative gene for most early‐onset familial Alzheimer's disease. Biochemical studies revealed that PS1 exists predominantly as two processed fragments in cells and brain tissues. We prepared stably transfected cells expressing the wild‐type and familial Alzheimer's disease‐associated mutants of ...
T, Honda +11 more
openaire +2 more sources
A 1340-bp cDNA fragment encoding the lemurian presenilin 2 protein (PS2) was isolated from aMicrocebus murinusbrain cDNA library by PCR using oligonucleotide primers based on the nucleotide sequence of the human gene.
Alphonse Calenda +7 more
doaj +1 more source
ABSTRACT Aim The ryanodine receptor (RyR2) is an intracellular Ca2+ release channel which mediates numerous cellular functions across different tissues. Dysregulation of RyR2 channel activity leads to pathological Ca2+ release, which often underlies disrupted cellular signaling in disease states.
Michelle L. Munro +8 more
wiley +1 more source
The γ-secretase complex: from structure to function
One of the most critical pathological features of Alzheimer’s disease (AD) is the accumulation of β-amyloid (Aβ) peptides that form extracellular senile plaques in the brain. Aβ is derived from β-amyloid precursor protein through sequential cleavage by β-
Xian eZhang +4 more
doaj +1 more source
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim +4 more
wiley +1 more source

