Evidence map›Paper›PMID 32009885›Full record

ArticleFrontiers in neuroscience2019

Altered Biogenesis and MicroRNA Content of Hippocampal Exosomes Following Experimental Status Epilepticus.

Aasia Batool, Thomas D M Hill, Ngoc T Nguyen, Elena Langa, Mairéad Diviney, Catherine Mooney, Gary P Brennan, Niamh M C Connolly, Amaya Sanz-Rodriguez, Brenton L Cavanagh and 1 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.8field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 34 citations in OpenAlex.

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  16. Function of exosomes in neurological disorders and brain tumors.Extracellular vesicles and circulating nucleic acids · 2021
    Article
  17. Extracellular Vesicles in Neurological Disorders.Sub-cellular biochemistry · 2021
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Aasia BatoolDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Thomas D M HillDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Ngoc T NguyenDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Elena LangaDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Mairéad DivineyDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Catherine MooneyFutureNeuro SFI Research Centre, Royal College of Surgeons in Ireland, Dublin, Ireland.
Gary P BrennanDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Niamh M C ConnollyDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Amaya Sanz-RodriguezDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Brenton L CavanaghCellular and Molecular Imaging Core, Royal College of Surgeons in Ireland, Dublin, Ireland.
David C HenshallDepartment of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.
Royal College of Surgeons in Ireland · IEUniversity College Dublin · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Repetitive or prolonged seizures (status epilepticus) can damage neurons within the hippocampus, trigger gliosis, and generate an enduring state of hyperexcitability. Recent studies have suggested that microvesicles including exosomes are released from brain cells following stimulation and tissue injury, conveying contents between cells including microRNAs (miRNAs). Here, we characterized the effects of experimental status epilepticus on the expression of exosome biosynthesis components and analyzed miRNA content in exosome-enriched fractions. Status epilepticus induced by unilateral intra-amygdala kainic acid in mice resulted in acute subfield-specific, bi-directional changes in hippocampal transcripts associated with exosome biosynthesis including up-regulation of endosomal sorting complexes required for transport (ESCRT)-dependent and -independent pathways. Increased expression of exosome components including Alix were detectable in samples obtained 2 weeks after status epilepticus and changes occurred in both the ipsilateral and contralateral hippocampus. RNA sequencing of exosome-enriched fractions prepared using two different techniques detected a rich diversity of conserved miRNAs and showed that status epilepticus selectively alters miRNA contents. We also characterized editing sites of the exosome-enriched miRNAs and found six exosome-enriched miRNAs that were adenosine-to-inosine (ADAR) edited with the majority of the editing events predicted to occur within miRNA seed regions. However, the prevalence of these editing events was not altered by status epilepticus. These studies demonstrate that status epilepticus alters the exosome pathway and its miRNA content, but not editing patterns. Further functional studies will be needed to determine if these changes have pathophysiological significance for epileptogenesis.

Indexed as

epileptogenesisextracellular vesicleneuroinflammationnon-coding RNAseizuretemporal lobe epilepsy

Identifiers

PMID32009885
PMCPMC6978807
OpenAlexW3000269616

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.