Evidence map›Paper›PMID 37107614›Full record

ArticleGenes2023

Human Adult Astrocyte Extracellular Vesicle Transcriptomics Study Identifies Specific RNAs Which Are Preferentially Secreted as EV Luminal Cargo.

Keerthanaa Balasubramanian Shanthi, Daniel Fischer, Abhishek Sharma, Antti Kiviniemi, Mika Kaakinen, Seppo J Vainio, Geneviève Bart

Open access · goldAbstract read
In one paragraph

Article in Genes, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
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

7 authors at 2 institutions in 1 country.

Keerthanaa Balasubramanian ShanthiFBMM, Disease Networks Research Unit, Laboratory of Developmental Biology, University of Oulu, 90014 Oulu, Finland.ORCID 0000-0001-6031-8780
Daniel FischerApplied Statistical Methods, Natural Resources Institute Finland (Luke), Myllytie 1, 31600 Jokioinen, Finland.
Abhishek SharmaFBMM, Disease Networks Research Unit, Laboratory of Developmental Biology, University of Oulu, 90014 Oulu, Finland.
Antti KiviniemiFBMM, Disease Networks Research Unit, Laboratory of Developmental Biology, University of Oulu, 90014 Oulu, Finland.
Mika KaakinenBiocenter Oulu, University of Oulu, and Oulu Centre for Cell-Matrix Research, Faculty of Biochemistry and Molecular Medicine, 90014 Oulu, Finland.
Seppo J VainioFBMM, Disease Networks Research Unit, Laboratory of Developmental Biology, University of Oulu, 90014 Oulu, Finland.ORCID 0000-0001-9319-3566
Geneviève BartFBMM, Disease Networks Research Unit, Laboratory of Developmental Biology, University of Oulu, 90014 Oulu, Finland.ORCID 0000-0001-9809-150X
University of Oulu · FINatural Resources Institute Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Astrocytes are central nervous system (CNS)-restricted glial cells involved in synaptic function and CNS blood flow regulation. Astrocyte extracellular vesicles (EVs) participate in neuronal regulation. EVs carry RNAs, either surface-bound or luminal, which can be transferred to recipient cells. We characterized the secreted EVs and RNA cargo of human astrocytes derived from an adult brain. EVs were isolated by serial centrifugation and characterized with nanoparticle tracking analysis (NTA), Exoview, and immuno-transmission electron microscopy (TEM). RNA from cells, EVs, and proteinase K/RNase-treated EVs was analyzed by miRNA-seq. Human adult astrocyte EVs ranged in sizes from 50 to 200 nm, with CD81 as the main tetraspanin marker and larger EVs positive for integrin β1. Comparison of the RNA between the cells and EVs identified RNA preferentially secreted in the EVs. In the case of miRNAs, enrichment analysis of their mRNA targets indicates that they are good candidates for mediating EV effects on recipient cells. The most abundant cellular miRNAs were also abundant in EVs, and the majority of their mRNA targets were found to be downregulated in mRNA-seq data, but the enrichment analysis lacked neuronal specificity. Proteinase K/RNase treatment of EV-enriched preparations identified RNAs secreted independently of EVs. Comparing the distribution of cellular and secreted RNA identifies the RNAs involved in intercellular communication via EVs.

Indexed as

Extracellular VesiclesMicroRNAsAdultAstrocytesCell CommunicationEndopeptidase KHumansRNA, MessengerTranscriptomeEndopeptidase KMicroRNAsRNA, Messengerastrocyte-derived extracellular vesiclesEV lumenextracellular vesicleshuman adult astrocytemiRNAmiRNA-seqmRNAmRNA-sequnannotated RNA

Identifiers

PMID37107614
PMCPMC10138286
OpenAlexW4362586250

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.