Cited by 47Extracellular vesicles in diseaseCellular transport and secretionNanoparticle-Based Drug Delivery

Extracellular vesicles (exosomes and ectosomes) play key roles in the pathology of brain diseases

Open access
Meldolesi, Jacopo·2021·Molecular Biomedicine

Abstract

Last century, neurons and glial cells were mostly believed to play distinct functions, relevant for the brain. Progressively, however, it became clear that neurons, astrocytes and microglia co-operate intensely with each other by release/binding of signaling factors, direct surface binding and generation/release of extracellular vesicles, the exosomes and ectosomes, called together vesicles in this abstract. The present review is focused on these vesicles, fundamental in various brain diseases. Their properties are extraordinary. The specificity of their membrane governs their fusion with distinct target cells, variable depending on the state and specificity of their cells of origin and target. Result of vesicle fusion is the discharge of their cargos into the cytoplasm of target cells. Cargos are composed of critical molecules, from proteins (various nature and function) to nucleotides (especially miRNAs), playing critical roles in immune and neurodegenerative diseases. Among immune diseases is multiple sclerosis, affected by extensive dysregulation of co-trafficking neural and glial vesicles, with distinct miRNAs inducing severe or reducing effects. The vesicle-dependent differences between progressive and relapsing-remitting forms of the disease are relevant for clinical developments. In Alzheimer’s disease the vesicles can affect the brain by changing their generation and inducing co-release of effective proteins, such Aβ and tau, from neurons and astrocytes. Specific miRNAs can delay the long-term development of the disease. Upon their traffic through the blood-brainbarrier, vesicles of various origin reach fluids where they are essential for the identification of biomarkers, important for diagnostic and therapeutic innovations, critical for the future of many brain patients.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1186/s43556-021-00040-5

Cites

126 of 126 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Extracellular tau can be taken up by neighboring cells, both neurons and glial cells, through various pathways including phagocytosis, macropinocytosis, receptor-mediated uptake, endocytosis, and/or membrane fusion of exosomes.

    “Meanwhile, the extracellular tau can be taken up by neighboring cells, both neurons and glial cells, through various pathways, including phagocytosis [68], macropinocytosis [69], receptor-mediated uptake [67, 70], endocytosis [71], and/or membrane fusion of exosomes [72, 73].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 7

  1. [14]Chivet M Hemming F Pernet-Gallay K Fraboulets S Sadoul R Emerging role of neuronal exosomes in the central nervous system Front Physiol. 2012 3 145 10.3389/phys.2012.0015 22654762 PMC3361079 · DOI
  2. [29]Boilard E Extracellular vesicles and their content in bioactive lipid mediators: more than a sack of microRNA J Lipid Res. 2018 59 11 2037 2046 10.1194/jlr.R084640 29678959 PMC6210911 · DOI
  3. [42]Tanaka M Sackett S Zhang Y Endocannabinoid modulation of microglial phenotypes in neuropathology Front Neurol 2020 11 87 10.3389/fneuur.2020.00087 32117037 PMC7033501 · DOI
  4. [64]Amoruso A Blonda M Gironi M Grasso R Di Francescantonio V Scaroni F Immune and central system-related miRNA expression profiling in monocytes of multiple sclerosis patients Sci Rep. 2020 10 6125 10.1038/sf41598-020-63282-3 32273558 PMC7145856 · DOI
  5. [78]Vassilef N Vella LJ Raipaksha H Shambrook M Amirmohammad NK McLean C Revealing the proteome motor cortex derived extracellular vesicles isolated from amyotrophic lateral sclerosis human postmortem tissue Cells. 2020 9 1709 10.3390/cells90717076.9 PMC7407138 32708779 · DOI
  6. [88]Stevenson R Smokhina E Rossetti I Morley JW Buskila Y Neuromodulation of glial function during neurodegeneration Front Cell Neurosci. 2020 14 278 10.3389/fncel.2020.00278.128 32973460 PMC7473408 · DOI
  7. [112]Casamitjana A Petrone P Molinuevo JL Gispert JD Vilaplana V Projection to latent spaces entangles pathological effects on brain morphology in the asymptomatic phase of Alzheimer’s disease Front Neurol. 2020 11 648 10.3389/fneur.2020.0064 32849173 PMC7399334 · DOI

Cited by

Sorted by citations

Authors
Meldolesi, J.
Affiliations
Vita-Salute San Raffaele University (IT)
Corresponding author
Meldolesi, Jacopo
Venue
Molecular Biomedicine
Published
2021-06-20
Volume
2
Issue
1
Pages
18-18
ISSN
2662-8651 (ISSN-L)
OpenAlex
W3176248414
Cited by
47
References
126
Citations by year
2026: 9 · 2025: 9 · 2024: 13 · 2023: 6 · 2022: 9 · 2021: 1
FWCI
0.76
Type
journal article
Language
en
Open access
Locations
  • Molecular Biomedicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
extracellular vesicles, exosomes, ectosome, brain disorders, neurodegenerative diseases, multiple sclerosis, Alzheimer's disease, microRNA, vesicle fusion, neuron-glia communication, astrocytes, microglia, amyloid-beta, tau protein, blood-brain barrier, biomarkers, relapsing-remitting multiple sclerosis

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review