Evidence map›Paper›PMID 38952714›Full record

ArticleBiomaterials research2024

M2 Macrophage-Derived Small Extracellular Vesicles Ameliorate Pyroptosis and Intervertebral Disc Degeneration.

Kaihui Zhang, Lilong Du, Zhenhua Li, Zhenxin Huo, Li Shen, Shan Gao, Yiming Jia, Meifeng Zhu, Baoshan Xu

Abstract read
In one paragraph

Article in Biomaterials research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. [Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
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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

9 authors.

Kaihui ZhangDepartment of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.
Lilong DuDepartment of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.
Zhenhua LiDepartment of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.
Zhenxin HuoDepartment of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.
Li ShenDepartment of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.
Shan GaoFirst Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
Yiming JiaDepartment of Stomatology, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, China.
Meifeng ZhuCollege of Life Sciences, Key Laboratory of Bioactive Materials (Ministry of Education), Nankai University, Tianjin 300071, China.
Baoshan XuDepartment of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.ORCID https://orcid.org/0000-0002-4407-8745

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intervertebral discs (IVDs) have a limited self-regenerative capacity and current strategies for IVD regeneration are unsatisfactory. Recent studies showed that small extracellular vesicles derived from M2 macrophage cells (M2-sEVs) inhibited inflammation by delivery of various bioactive molecules to recipient cells, which indicated that M2-sEVs may offer a therapeutic strategy for the repair of IVDs. Herein, we investigated the roles and mechanisms of M2-sEVs on IVD regeneration. The in vitro results demonstrated that M2-sEVs inhibited pyroptosis, preserved cellular viability, and promoted migration of nucleus pulposus cells (NPCs). Bioinformatics analysis and verification experiments of microRNA (miR) expression showed that miR-221-3p was highly expressed in M2-sEVs. The mechanism of action was explored and indicated that M2-sEVs inhibited pyroptosis of NPCs through transfer of miR-221-3p, which suppressed the expression levels of phosphatase and tensin homolog and NOD-, LRR-, and pyrin domain-containing protein 3. Moreover, we fabricated decellularized ECM-hydrogel (dECM) for sustained release of M2-sEVs, which exhibited biocompatibility and controlled release properties. The in vivo results revealed that dECM-hydrogel containing M2-sEVs (dECM/M2-sEVs) delayed the degeneration of intervertebral disc degeneration (IDD) models. In addition to demonstrating a promising therapeutic for IDD, this study provided valuable data for furthering the understanding of the roles and mechanisms of M2-sEVs in IVD regeneration.

Identifiers

PMID38952714
PMCPMC11214826

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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.