Evidence map›Paper›PMID 38023721›Full record

ArticleBioengineering & translational medicine2023

Exosomes from M2c macrophages alleviate intervertebral disc degeneration by promoting synthesis of the extracellular matrix via MiR-124/CILP/TGF-β.

Yi Liu, Mintao Xue, Yaguang Han, Yucai Li, Bing Xiao, Weiheng Wang, Jiangming Yu, Xiaojian Ye

Open access · goldAbstract read
In one paragraph

Article in Bioengineering & translational medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
8.4field-weighted citation impact, top 2% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Advances in the study of macrophage polarization in intervertebral disc degeneration.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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  13. Regenerative strategies for intervertebral disc degeneration.Journal of orthopaedic translation · 2025
    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

8 authors at 1 institution in 1 country.

Yi LiuDepartment of Orthopaedics Second Affiliated Hospital of Naval Medical University Shanghai People's Republic of China.
Mintao XueDepartment of Orthopaedics Second Affiliated Hospital of Naval Medical University Shanghai People's Republic of China.
Yaguang HanDepartment of Orthopaedics Second Affiliated Hospital of Naval Medical University Shanghai People's Republic of China.ORCID https://orcid.org/0000-0003-3861-3358
Yucai LiDepartment of Orthopedics Tongren Hospital, Shanghai Jiao Tong University School of Medicine Shanghai People's Republic of China.
Bing XiaoDepartment of Orthopaedics Second Affiliated Hospital of Naval Medical University Shanghai People's Republic of China.
Weiheng WangDepartment of Orthopaedics Second Affiliated Hospital of Naval Medical University Shanghai People's Republic of China.
Jiangming YuDepartment of Orthopedics Tongren Hospital, Shanghai Jiao Tong University School of Medicine Shanghai People's Republic of China.
Xiaojian YeDepartment of Orthopedics Tongren Hospital, Shanghai Jiao Tong University School of Medicine Shanghai People's Republic of China.ORCID https://orcid.org/0000-0001-5978-2439
Shanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immuno-inflammation is highly associated with anabolic and catabolic dysregulation of the extracellular matrix (ECM) in the nucleus pulposus (NP), which dramatically propels intervertebral disc degeneration (IVDD). With the characteristics of tissue remodeling and regeneration, M2c macrophages have attracted great attention in research on immune modulation that rebuilds degenerated tissues. Therefore, we first demonstrated the facilitating effects of M2c macrophages on ECM anabolism of the NP in vitro. We subsequently found that exosomes from M2c macrophages (M2c-Exoss) mediated their metabolic rebalancing effects on the ECM. To determine whether M2c-Exoss served as positive agents protecting the ECM in IVDD, we constructed an M2c-Exos-loaded hyaluronic acid hydrogel (M2c-Exos@HA hydrogel) and implanted it into the degenerated caudal disc of rats. The results of MRI and histological staining indicated that the M2c-Exos@HA hydrogel alleviated IVDD in vivo in the long term. To elucidate the underlying molecular mechanism, we performed 4D label-free proteomics to screen dysregulated proteins in NPs treated with M2c-Exoss. Cartilage intermediate layer protein (CILP) was the key protein responsible for the rebalancing effects of M2c-Exoss on ECM metabolism in the NP. With prediction and verification using luciferase assays and rescue experiments, miR-124-3p was identified as the upstream regulator in M2c-Exoss that regulated CILP and consequently enhanced the activity of the TGF-β/smad3 pathway. In conclusion, we demonstrated ameliorating effects of M2c-Exoss on the imbalance of ECM metabolism in IVDD via the miR-124/CILP/TGF-β regulatory axis, which provides a promising theoretical basis for the application of M2c macrophages and their exosomes in the treatment of IVDD.

Indexed as

cartilage intermediate layer proteinexosomesintervertebral disc degenerationM2c polarizationmacrophagesmiRNAs

Identifiers

PMID38023721
PMCPMC10658595
OpenAlexW4321085920

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.