Evidence map›Paper›PMID 32290095›Full record

ArticleCells2020

Astrocyte-Derived Small Extracellular Vesicles Regulate Dendritic Complexity through miR-26a-5p Activity.

Alejandro Luarte, Roberto Henzi, Anllely Fernández, Diego Gaete, Pablo Cisternas, Matias Pizarro, Luis Federico Batiz, Isabel Villalobos, Matias Masalleras, Rodrigo Vergara and 5 more

Open access · goldAbstract read
In one paragraph

Article in Cells, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.8field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 64 citations in OpenAlex.

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  15. Review
  16. Extracellular vesicles, the emerging mirrors of brain physiopathology.International journal of biological sciences · 2023
    Review
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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

15 authors at 4 institutions in 2 countries.

Alejandro LuarteCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.ORCID 0000-0001-9138-1854
Roberto HenziCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Anllely FernándezCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Diego GaeteCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Pablo CisternasCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Matias PizarroCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Luis Federico BatizCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Isabel VillalobosCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Matias MasallerasCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Rodrigo VergaraBiomedical Neuroscience Institute, Universidad de Chile, Santiago 8380453, Chile.ORCID 0000-0002-1943-2060
Manuel Varas-GodoyCancer Cell Biology Lab, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago 7510157, Chile.ORCID 0000-0001-5857-4793
Lorena Abarzua-CatalanCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Rodrigo Herrera-MolinaSynaptic Signaling Lab, Leibniz İnstitute for Neurobiology; Center for Behavioral Brain Sciences, 39118 Magdeburg, Germany.ORCID 0000-0001-9597-5131
Carlos LafourcadeCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Ursula WynekenCentro de Investigación e Innovación Biomédica (CIIB), Facultad de Medicina, Universidad de los Andes, Santiago 7550000, Chile.
Universidad de Los Andes, Chile · CLMetropolitan University of Educational Sciences · CLSan Sebastián University · CLUniversidad Bernardo O'Higgins · CL

Funding

Training in noncommunicable diseases epidemiological, data science and Implementation Science research to strengthen evidence-based interventions, policy and control in Uganda.D43TW011401 · FIC · MAKERERE UNIVERSITY COLLEGE OF HEALTH SCIENCES · PI Charles Batte, William Checkley · 2019 to 2026
$1.8M
6 · The paper itself

Abstract

In the last few decades, it has been established that astrocytes play key roles in the regulation of neuronal morphology. However, the contribution of astrocyte-derived small extracellular vesicles (sEVs) to morphological differentiation of neurons has only recently been addressed. Here, we showed that cultured astrocytes expressing a GFP-tagged version of the stress-regulated astrocytic enzyme Aldolase C (Aldo C-GFP) release small extracellular vesicles (sEVs) that are transferred into cultured hippocampal neurons. Surprisingly, Aldo C-GFP-containing sEVs (Aldo C-GFP sEVs) displayed an exacerbated capacity to reduce the dendritic complexity in developing hippocampal neurons compared to sEVs derived from control (i.e., GFP-expressing) astrocytes. Using bioinformatics and biochemical tools, we found that the total content of overexpressed Aldo C-GFP correlates with an increased content of endogenous miRNA-26a-5p in both total astrocyte homogenates and sEVs. Notably, neurons magnetofected with a nucleotide sequence that mimics endogenous miRNA-26a-5p (mimic 26a-5p) not only decreased the levels of neuronal proteins associated to morphogenesis regulation, but also reproduced morphological changes induced by Aldo-C-GFP sEVs. Furthermore, neurons magnetofected with a sequence targeting miRNA-26a-5p (antago 26a-5p) were largely resistant to Aldo C-GFP sEVs. Our results support a novel and complex level of astrocyte-to-neuron communication mediated by astrocyte-derived sEVs and the activity of their miRNA content.

Indexed as

AnimalsAstrocytesCell DifferentiationCells, CulturedDendritesExtracellular VesiclesFemaleFructose-Bisphosphate AldolaseHippocampusMicroRNAsPregnancyRatsRats, Sprague-DawleyFructose-Bisphosphate AldolaseMicroRNAsMIRN26 microRNA, ratastrocytesdendritic complexityexosomeshippocampal neuronsmicroRNAs

Identifiers

PMID32290095
PMCPMC7226994
OpenAlexW3008409746

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.