Evidence map›Paper›PMID 32310825›Full record

ArticleAging2020

Epigenetic modulation of macrophage polarization prevents lumbar disc degeneration.

Yang Hou, Guodong Shi, Yongfei Guo, Jiangang Shi

Open access · greenAbstract read
In one paragraph

Article in Aging, 2020. 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
2.5field-weighted citation impact, top 10% 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, 27 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Yang HouDepartment of Orthopaedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
Guodong ShiDepartment of Orthopaedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
Yongfei GuoDepartment of Orthopaedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
Jiangang ShiDepartment of Orthopaedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
Second Military Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inflammation plays an essential role in the development of lumbar disc degeneration (LDD), although the exact effects of macrophage subtypes on LDD remain unclear. Based on previous studies, we hypothesized that M2-polarization of local macrophages and simultaneous suppression of their production of fibrotic transforming growth factor beta 1 (TGFβ1) could inhibit progression of LDD. Thus, we applied an orthotopic injection of adeno-associated virus (AAV) carrying shRNA for DNA Methyltransferase 1 (DNMT1) and/or shRNA for TGFβ1 under a macrophage-specific CD68 promoter to specifically target local macrophages in a mouse model for LDD. We found that shDNMT1 significantly reduced levels of the pro-inflammatory cytokines TNFα, IL-1β and IL-6, significantly increased levels of the anti-inflammatory cytokines IL-4 and IL-10, significantly increased M2 macrophage polarization, significantly reduced cell apoptosis in the disc degeneration zone and significantly reduced LDD-associated pain. The anti-apoptotic and anti-pain effects were further strengthened by co-application of shTGFβ1. Together, these data suggest that M2 polarization of macrophages induced by both epigenetic modulation and suppressed production and release of TGFβ1 from polarized M2 macrophages, may have a demonstrable therapeutic effect on LDD.

Indexed as

Epigenesis, GeneticLumbar VertebraeAnimalsAntigens, CDAntigens, Differentiation, MyelomonocyticApoptosisCD68 MoleculeCell PolarityCollagen Type IICytokinesDependovirusDNA (Cytosine-5-)-Methyltransferase 1Genetic TherapyIntervertebral Disc DegenerationMacrophagesMiceAntigens, CDAntigens, Differentiation, MyelomonocyticCD68 MoleculeCD68 protein, mouseCollagen Type IICytokinesDNA (Cytosine-5-)-Methyltransferase 1Transforming Growth Factor beta1agingDNA methyltransferase 1 (DNMT1)lumbar disc degeneration (LDD)macrophage polarizationtransforming growth factor beta 1 (TGFβ1)

Identifiers

PMID32310825
PMCPMC7202517
OpenAlexW3016290582

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.