Evidence map›Paper›PMID 34768001›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2022

Microglia secrete miR-146a-5p-containing exosomes to regulate neurogenesis in depression.

Cuiqin Fan, Ye Li, Tian Lan, Wenjing Wang, Yifei Long, Shu Yan Yu

Open access · hybridAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 131 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
131citing papers in PubMed, 1 pooled it
11.4field-weighted citation impact, top 1% 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

131 citing papers in PubMed, 1 synthesis or guideline pooled it, 211 citations in OpenAlex.

  1. Pooled it
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  9. Targeting the non-coding RNA-PANoptosis axis: a novel frontier in disease diagnosis and therapy.Apoptosis : an international journal on programmed cell death · 2026
    Review
  10. Article
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  13. miR-146a-5p mitigates ethanol-induced neuroinflammation by targeting Btg2-dependent microglial activation.Malawi medical journal : the journal of Medical Association of Malawi · 2026
    Article
  14. Glial Cells in Behavioral and Psychological Symptoms of Alzheimer's Disease.International journal of molecular sciences · 2026
    Review
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  16. Article
  17. A female-specific role for Slit1 in prenatal stress-induced depression vulnerability.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
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71 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Cuiqin FanDepartment of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
Ye LiDepartment of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
Tian LanDepartment of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
Wenjing WangDepartment of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
Yifei LongDepartment of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
Shu Yan YuDepartment of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Shandong Provincial Key Laboratory of Mental Disorders, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China. Electronic address: shuyanyu@sdu.edu.cn.
Shandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enhancing neurogenesis within the hippocampal dentate gyrus (DG) is critical for maintaining brain development and function in many neurological diseases. However, the neural mechanisms underlying neurogenesis in depression remain unclear. Here, we show that microglia transfer a microglia-enriched microRNA, miR-146a-5p, via secreting exosomes to inhibit neurogenesis in depression. Overexpression of miR-146a-5p in hippocampal DG suppresses neurogenesis and spontaneous discharge of excitatory neurons by directly targeting Krüppel-like factor 4 (KLF4). Downregulation of miR-146a-5p expression ameliorates adult neurogenesis deficits in DG regions and depression-like behaviors in rats. Intriguingly, circular RNA ANKS1B acts as a miRNA sequester for miR-146a-5p to mediate post-transcriptional regulation of KLF4 expression. Collectively, these results indicate that miR-146a-5p can function as a critical factor regulating neurogenesis under conditions of pathological processes resulting from depression and suggest that microglial exosomes generate new crosstalk channels between glial cells and neurons.

Indexed as

ExosomesAnimalsDepressionMicrogliaMicroRNAsNeurogenesisRatsMicroRNAsMIRN146a microRNA, ratcirc-ANKS1BdepressionexosomesmicrogliamiR-146a-5pneurogenesis

Identifiers

PMID34768001
PMCPMC8899528
OpenAlexW3212530036

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.