Abstract:
:Eukaryotic cells release different types of extracellular vesicles (EVs) including exosomes, ectosomes, and microvesicles. Exosomes are nanovesicles, 30-200 nm in diameter, that carry cell- and cell-state-specific cargo of proteins, lipids, and nucleic acids, including mRNA and miRNA. Recent studies have shown that central nervous system (CNS)-derived exosomes may carry amyloidogenic proteins and facilitate their cell-to-cell transfer, thus playing a critical role in the progression of neurodegenerative diseases, such as tauopathies and synucleinopathies. CNS-derived exosomes also have been shown to cross the blood-brain-barrier into the bloodstream and therefore have drawn substantial attention as a source of biomarkers for various neurodegenerative diseases as they can be isolated via a minimally invasive blood draw and report on the biochemical status of the CNS. However, although isolating specific brain-cell-derived exosomes from the blood is theoretically simple and the approach has great promise, practical details are of crucial importance and may compromise the reproducibility and utility of this approach, especially when different laboratories use different protocols. In this review we discuss the role of exosomes in neurodegenerative diseases, the usefulness of CNS-derived blood exosomes as a source of biomarkers for these diseases, and practical challenges associated with the methodology of CNS-derived blood exosomes and subsequent biomarker analysis.
journal_name
Front Mol Neuroscijournal_title
Frontiers in molecular neuroscienceauthors
Hornung S,Dutta S,Bitan Gdoi
10.3389/fnmol.2020.00038subject
Has Abstractpub_date
2020-03-19 00:00:00pages
38issn
1662-5099journal_volume
13pub_type
杂志文章,评审abstract::Parkinson's disease (PD) is a debilitating neurodegenerative disease characterized primarily by the selective death of dopaminergic (DA) neurons in the substantia nigra pars compacta of the midbrain. Although several genetic forms of PD have been identified, the precise molecular mechanisms underlying DA neuron loss i...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2013.00040
更新日期:2013-11-20 00:00:00
abstract::Collateral sprouting of surviving axons contributes to the synaptic reorganization after brain injury. To study this clinically relevant phenomenon, we used complex organotypic tissue cultures of mouse entorhinal cortex (EC) and hippocampus (H). Single EC-H cultures were generated to analyze associational sprouting, a...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2019.00270
更新日期:2019-11-12 00:00:00
abstract::The porcine brain closely resembles the human brain in aspects such as development and morphology. Temporal miRNA profiling in the developing embryonic porcine cortex revealed a distinct set of miRNAs, including miR-34c and miR-204, which exhibited a highly specific expression profile across the time of cortical foldi...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2017.00031
更新日期:2017-02-09 00:00:00
abstract::The tyrosine kinase Fyn plays an important role in synaptic plasticity, learning, and memory. Here we report that Fyn is activated in response to 15 min D1 receptor (D1R) but not D2 receptor (D2R) stimulation specifically in the dorsomedial striatum (DMS) of mice but not in the other substriatal regions, the dorsolate...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2017.00273
更新日期:2017-08-31 00:00:00
abstract::Glaucoma is a progressive optic neuropathy characterized by visual field defects that ultimately lead to irreversible blindness (Alward, 2000; Anderson et al., 2006). By the year 2020, an estimated 80 million people will have glaucoma, 11 million of which will be bilaterally blind. Primary open-angle glaucoma (POAG) i...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2014.00038
更新日期:2014-05-19 00:00:00
abstract::The polycomb group proteins (PcGs) are a group of epigenetic factors associated with gene silencing. They are found in several families of multiprotein complexes, including polycomb repressive complex 2 (PRC2). EZH2, EED and SUZ12 form the core components of the PRC2 complex, which is responsible for the mono, di- and...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2019.00076
更新日期:2019-04-09 00:00:00
abstract::Many human neurodegenerative diseases are associated with amyloid fibril formation. Inhibition of amyloid formation is of importance for therapeutics of the related diseases. However, the development of selective potent amyloid inhibitors remains challenging. Here based on the structures of amyloid β (Aβ) fibrils and ...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2019.00054
更新日期:2019-03-04 00:00:00
abstract::Transient global cerebral ischemia (tGCI) causes excessive release of glutamate from neurons. Astrocytic glutamate transporter-1 (GLT-1) and glutamine synthetase (GS) together play a predominant role in maintaining glutamate at normal extracellular concentrations. Though our previous studies reported the alleviation o...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2018.00344
更新日期:2018-10-01 00:00:00
abstract::Ion channels are expressed throughout nervous system development. The type and diversity of conductances and gating mechanisms vary at different developmental stages and with the progressive maturational status of neural cells. The variety of ion channels allows for distinct signaling mechanisms in developing neural c...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2020.00062
更新日期:2020-04-24 00:00:00
abstract::Human achaete-scute homolog-1 (hASH1), encoded by the human ASCL1 gene, belongs to the family of basic helix-loop-helix transcription factors. hASH1 and its mammalian homolog Mash1 are expressed in the central and peripheral nervous system during development, and promote early neuronal differentiation. Furthermore, hA...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2011.00001
更新日期:2011-02-07 00:00:00
abstract::Brain metabolic DNA (BMD) is continuously synthesized by reverse transcription in presynaptic synaptosomes and astroglia, and is partly transferred to nuclei after acquiring the double stranded configuration. Synthesis and turnover of BMD are markedly dependent on brain activity, as shown by circadian oscillations, en...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2020.00057
更新日期:2020-04-28 00:00:00
abstract::Unlike a number of amyloid-forming proteins, stefins, and in particular stefin B (cystatin B) form amyloids under conditions where the native state predominates. In order to trigger oligomerization processes, the stability of the protein needs to be compromised, favoring structural re-arrangement however, accelerating...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2012.00094
更新日期:2012-10-12 00:00:00
abstract::Increasing evidence highlighted the role of cancer stem cells (CSCs) in the development of tumor resistance to therapy, particularly in glioblastoma (GBM). Therefore, the development of new therapies, specifically directed against GBM CSCs, constitutes an important research avenue. Considering the extended range of ca...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2016.00107
更新日期:2016-10-27 00:00:00
abstract::Electroacupuncture (EA) could improve the hyperactivity of the hypothalamus pituitary adrenal (HPA) axis induced by hepatectomy. However, its underlying mechanism still remains largely unclear. Here, we found that hypothalamic corticotrophin releasing hormone (CRH) modulates the function of the HPA axis, while hepatec...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2017.00308
更新日期:2017-09-27 00:00:00
abstract::Atypical Parkinson syndromes (APSs) often have symptoms that overlap with those of Parkinson's disease (PD), especially early in the disease, making these disorders difficult to diagnose. Previous studies have demonstrated an association of oligomeric α-synuclein (α-Syn), a key element in the pathogenesis of PD, with ...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2019.00129
更新日期:2019-06-12 00:00:00
abstract::The low-density lipoprotein receptor-related protein 1, LRP1, interacts with APP and affects its processing. This is assumed to be mostly caused by the impact of LRP1 on APP endocytosis. More recently, also an interaction of APP and LRP1 early in the secretory pathway was reported whereat retention of LRP1 in the ER l...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2017.00118
更新日期:2017-04-27 00:00:00
abstract::The phosphoinositide 3-kinase (PI3K) complex plays important roles in virtually all cells of the body. The enzymatic activity of PI3K to phosphorylate phosphoinositides in the membrane is mediated by a group of catalytic and regulatory subunits. Among those, the class I catalytic subunits, p110α, p110β, p110γ, and p11...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2014.00012
更新日期:2014-02-13 00:00:00
abstract::A fundamental characteristic of neurons is the relationship between the architecture of the polarized neuron and synaptic transmission between neurons. Intracellular membrane trafficking is paramount to establish and maintain neuronal structure; perturbation in trafficking results in defects in neurodevelopment and ne...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2020.597391
更新日期:2020-11-26 00:00:00
abstract::ADP-ribosylation of the P2X7k splice variant on mouse T cells by Ecto-ADP-ribosyltransferase ARTC2.2 in response to its substrate extracellular nicotinamide adenine dinucleotide (NAD+) triggers cell death. Since NAD+ is released as a danger signal during tissue damage, this NAD+-induced cell death (NICD) may impact th...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2019.00330
更新日期:2020-01-14 00:00:00
abstract::[This corrects the article on p. 257 in vol. 10, PMID: 28855859.]. ...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,已发布勘误
doi:10.3389/fnmol.2017.00392
更新日期:2017-11-20 00:00:00
abstract::The application of super-resolution optical microscopy to investigating synaptic structures has revealed a highly heterogeneous and variable intra-synaptic organization. Dense subsynaptic protein assemblies named subsynaptic domains or SSDs have been proposed as structural units that regulate the efficacy of neuronal ...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2019.00161
更新日期:2019-07-02 00:00:00
abstract::It is widely accepted that glutamate is the most important excitatory neurotransmitter in the central nervous system (CNS). However, there is also a large amount of glutamate in the blood. Generally, the concentration gradient of glutamate between intraparenchymal and blood environments is stable. However, this gradie...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2017.00400
更新日期:2017-12-05 00:00:00
abstract::Following axotomy, the activation of multiple intracellular signaling cascades causes the expression of a cocktail of regeneration-associated transcription factors which interact with each other to determine the fate of the injured neurons. The nerve injury response is channeled through manifold and parallel pathways,...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2012.00008
更新日期:2012-02-10 00:00:00
abstract::Lipid metabolism is drastically dysregulated in amyotrophic lateral sclerosis and impacts prognosis of patients. Animal models recapitulate alterations in the energy metabolism, including hypermetabolism and severe loss of adipose tissue. To gain insight into the molecular mechanisms underlying disease progression in ...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2017.00433
更新日期:2018-01-04 00:00:00
abstract::Neurodevelopmental disorders (NDDs) are characterized by a wide range of symptoms including delayed speech, intellectual disability, motor dysfunction, social deficits, breathing problems, structural abnormalities, and epilepsy. Unfortunately, current treatment strategies are limited and innovative new approaches are ...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2018.00387
更新日期:2018-10-23 00:00:00
abstract::The term neurodevelopmental disorder (NDD) is an umbrella term used to group together a heterogeneous class of disorders characterized by disruption in cognition, emotion, and behavior, early in the developmental timescale. These disorders are heterogeneous, yet they share common behavioral symptomatology as well as o...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2018.00132
更新日期:2018-04-24 00:00:00
abstract::γ-Aminobutyric acid type A receptors (GABAARs) mediate the majority of fast synaptic inhibition in the central nervous system (CNS). GABAARs belong to the Cys-loop superfamily of pentameric ligand-gated ion channels (pLGIC) and are assembled from 19 different subunits. As dysfunctional GABAergic neurotransmission mani...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2019.00191
更新日期:2019-08-07 00:00:00
abstract::Glutamate transporter-1 (GLT-1) is a Na+-dependent transporter that plays a key role in glutamate homeostasis by removing excess glutamate in the central nervous system (CNS). GLT-1 dysregulation occurs in various neurological diseases including Huntington's disease (HD), Alzheimer's disease (AD), Parkinson's disease ...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2019.00164
更新日期:2019-07-09 00:00:00
abstract::Rod and cone phosphodiesterase 6 (PDE6) are key effector enzymes of the vertebrate phototransduction pathway. Rod PDE6 consists of two catalytic subunits PDE6α and PDE6β and two identical inhibitory PDE6γ subunits, while cone PDE6 is composed of two identical PDE6α' catalytic subunits and two identical cone-specific P...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章
doi:10.3389/fnmol.2018.00233
更新日期:2018-07-09 00:00:00
abstract::Stromal interaction molecules (STIMs), including STIM1 and STIM2, are single-pass transmembrane proteins that are located predominantly in the endoplasmic reticulum (ER). They serve as calcium ion (Ca2+) sensors within the ER. In the central nervous system (CNS), they are involved mainly in Orai-mediated store-operate...
journal_title:Frontiers in molecular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnmol.2020.617422
更新日期:2020-12-23 00:00:00