Evidence map›Paper›PMID 26799631›Full record

ArticleAging cell2016

miR-204 downregulates EphB2 in aging mouse hippocampal neurons.

Chand Parvez Danka Mohammed, Hwanseok Rhee, Bong-Kwan Phee, Kunhyung Kim, Hee-Jin Kim, Hyehyeon Lee, Jung Hoon Park, Jung Hee Jung, Jeong Yeon Kim, Hyoung-Chin Kim and 3 more

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 55 citations in OpenAlex.

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  7. Hypertrophic cardiomyopathy inThe journal of cardiovascular aging · 2024
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  20. miR-204-3p/Nox4 Mediates Memory Deficits in a Mouse Model of Alzheimer's Disease.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
    Article
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

13 authors at 4 institutions in 1 country.

Chand Parvez Danka MohammedCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu, 711-873, Korea.
Hwanseok RheeMacrogen Inc., Seoul, 153-781, Korea.
Bong-Kwan PheeCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu, 711-873, Korea.
Kunhyung KimDepartment of New Biology, DGIST, Daegu, 711-873, Korea.
Hee-Jin KimCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu, 711-873, Korea.
Hyehyeon LeeDepartment of New Biology, DGIST, Daegu, 711-873, Korea.
Jung Hoon ParkMacrogen Inc., Seoul, 153-781, Korea.
Jung Hee JungMacrogen Inc., Seoul, 153-781, Korea.
Jeong Yeon KimCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu, 711-873, Korea.
Hyoung-Chin KimKorea Research Institute of Bioscience and Biotechnology, Ochang, 363-883, Korea.
Sang Ki ParkDepartment of Life Sciences, POSTECH, Pohang, 790-784, Korea.
Hong Gil NamCenter for Plant Aging Research, Institute for Basic Science (IBS), Daegu, 711-873, Korea.
Keetae KimDepartment of New Biology, DGIST, Daegu, 711-873, Korea.
Daegu Gyeongbuk Institute of Science and Technology · KRInstitute for Basic Science · KRPohang University of Science and Technology · KRMacrogen (South Korea) · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hippocampal synaptic function and plasticity deteriorate with age, often resulting in learning and memory deficits. As MicroRNAs (miRNAs) are important regulators of neuronal protein expression, we examined whether miRNAs may contribute to this age-associated decline in hippocampal function. We first compared the small RNA transcriptome of hippocampal tissues from young and old mice. Among 269 hippocampal miRNAs, 80 were differentially expressed (≥ twofold) among the age groups. We focused on 36 miRNAs upregulated in the old mice compared with those in the young mice. The potential targets of these 36 miRNAs included 11 critical Eph/Ephrin synaptic signaling components. The expression levels of several genes in the Eph/Ephrin pathway, including EphB2, were significantly downregulated in the aged hippocampus. EphB2 is a known regulator of synaptic plasticity in hippocampal neurons, in part by regulating the surface expression of the NMDA receptor NR1 subunit. We found that EphB2 is a direct target of miR-204 among miRNAs that were upregulated with age. The transfection of primary hippocampal neurons with a miR-204 mimic suppressed both EphB2 mRNA and protein expression and reduced the surface expression of NR1. Transfection of miR-204 also decreased the total expression of NR1. miR-204 induces senescence-like phenotype in fully matured neurons as evidenced by an increase in p16-positive cells. We suggest that aging is accompanied by the upregulation of miR-204 in the hippocampus, which downregulates EphB2 and results in reduced surface and total NR1 expression. This mechanism may contribute to age-associated decline in hippocampal synaptic plasticity and the related cognitive functions.

Indexed as

AgingAnimalsDown-RegulationHippocampusMaleMiceMice, Inbred C57BLMicroRNAsNerve Tissue ProteinsNeuronal PlasticityNeuronsReceptor, EphB2Receptors, N-Methyl-D-AspartateSignal TransductionEphb2 protein, mouseGprin1 protein, mouseMicroRNAsMIRN204 microRNA, mouseNerve Tissue ProteinsReceptor, EphB2Receptors, N-Methyl-D-AspartateagingEphB2hippocampusmiRNA204NMDA receptor

Identifiers

PMID26799631
PMCPMC4783348
OpenAlexW2271744335

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.