Evidence map›Paper›PMID 33621204›Full record

ArticleAging2021

Extracellular vesicle-encapsulated microRNA-23a from dorsal root ganglia neurons binds to A20 and promotes inflammatory macrophage polarization following peripheral nerve injury.

Yamei Zhang, Junying Liu, Xin Wang, Jinfeng Zhang, Chenchen Xie

Open access · greenAbstract read
In one paragraph

Article in Aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Emerging role of macrophages in neuropathic pain.Journal of orthopaedic translation · 2025
    Review
  5. Article
  6. Article
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  8. Article
  9. Article
  10. Review
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  16. Article
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  18. Review
  19. Mesenchymal stem cells from biology to therapy.Emerging topics in life sciences · 2021
    Article
  20. 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

5 authors at 1 institution in 1 country.

Yamei ZhangSichuan Medicine Key Laboratory of Clinical Genetics/Central Laboratory, Affiliated Hospital of Chengdu University, Chengdu 610081, P.R. China.
Junying LiuSichuan Medicine Key Laboratory of Clinical Genetics/Central Laboratory, Affiliated Hospital of Chengdu University, Chengdu 610081, P.R. China.
Xin WangSichuan Medicine Key Laboratory of Clinical Genetics/Central Laboratory, Affiliated Hospital of Chengdu University, Chengdu 610081, P.R. China.
Jinfeng ZhangDepartment of Pediatrics, Affiliated Hospital of Chengdu University, Chengdu 610081, P.R. China.
Chenchen XieDepartment of Neurology, Affiliated Hospital of Chengdu University, Chengdu 610081, P.R. China.
Chengdu University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extracellular vesicles (EVs) are capable of transferring microRNAs (miRNAs or miRs) between two different types of cells and also serve as vehicles for delivery of therapeutic molecules. After peripheral nerve injury, abnormal expression patterns of miRNAs have been observed in dorsal root ganglia (DRG) sensory neurons. We hypothesized that sensory neurons secrete miRs-containing EVs to communicate with macrophages. We demonstrated that miR-23a was upregulated in DRG neurons in spared nerve injury (SNI) mouse models. We also found that miR-23a was enriched in EVs released by cultured DRG neurons following capsaicin treatment. miR-23a-containing EVs were taken up into macrophages in which increased intracellular miR-23a promoted pro-inflammatory phenotype. A20 was verified as a target gene of miR-23a. Moreover, intrathecal delivery of EVs-miR-23a antagomir attenuated neuropathic hypersensitivity and reduced the number of M1 macrophages in injured DRGs by targeting A20. In conclusion, these results demonstrate that sensory neurons transfer EVs-encapsulated miR-23a to activate M1 macrophages and enhance neuropathic pain following the peripheral nerve injury. The study highlighted a new therapeutic approach to alleviate chronic neuropathic pain after nerve trauma by targeting detrimental miRNA in sensory neurons.

Indexed as

AnimalsDisease Models, AnimalExtracellular VesiclesGanglia, SpinalMacrophagesMiceMicroRNAsNeuralgiaPeripheral Nerve InjuriesSensory Receptor CellsTumor Necrosis Factor alpha-Induced Protein 3Up-RegulationMicroRNAsMirn23b microRNA, mouseTnfaip3 protein, mouseTumor Necrosis Factor alpha-Induced Protein 3A20extracellular vesiclesmicroRNA-23aperipheral nerve injurysensory neuron

Identifiers

PMID33621204
PMCPMC7993670
OpenAlexW3131371341

What OpenQuestion holds

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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.