Evidence map›Paper›PMID 40903820›Full record

ArticleJournal of extracellular vesicles2025

Bioactive Silk Fibroin Hydrogel Harnesses BMSCs-EVs to Modulate Inflammatory Microenvironment in Intervertebral Disc Degeneration.

Qi Liu, Jiaying Luo, Huan Wang, Shaoqian Cui

Abstract read
In one paragraph

Article in Journal of extracellular vesicles, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

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

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
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.

Qi LiuDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
Jiaying LuoSchool of Life Sciences and Biopharmaceuticals, Shenyang Pharmaceutical University, Shenyang, China.
Huan WangDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
Shaoqian CuiDepartment of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.ORCID https://orcid.org/0009-0002-7142-7485

Funding

Science and Technology Plan Joint Plan (Natural Science Foundation Project) of Liaoning Province 2024-MSLH-445Special Project of Career Development Support Program for Young and Middle-aged Teachers of Shenyang Pharmaceutical University ZQN2018024
6 · The paper itself

Abstract

Intervertebral disc degeneration (IVDD) is a common age-related disorder associated with inflammation, pain and impaired mobility. In this study, we developed a therapeutic system using silk fibroin (SF) hydrogel loaded with mRNA-engineered extracellular vesicles derived from murine bone marrow mesenchymal stem cells (BMSCs-EVs) to modulate macrophage polarization and alleviate IVDD. BMSCs were isolated from 6-week-old C57BL/6 mice, and an acute IVDD model was established via 18G needle puncture of the coccygeal discs (Co7-Co10). RAW 264.7 murine macrophages were used for in vitro assays, with M1 polarization induced by LPS and IFN-γ. The SF/EVs complex was characterized by SEM, FTIR and rheology, confirming its structural suitability for EV delivery. Functionally, SF hydrogel not only served as a biocompatible carrier but also enabled sustained release of EVs, enhancing their anti-inflammatory effects. In vitro, SF/EVs inhibited M1 polarization and promoted M2 marker expression. In vivo implantation improved disc histology and reduced inflammatory macrophage infiltration. High-throughput RNA sequencing identified S100B as a key functional cargo within EVs. Lentivirus-mediated overexpression and knockdown experiments confirmed that EV-derived S100B suppresses M1 polarization and mitigates IVDD progression. In summary, SF hydrogel loaded with S100B-enriched BMSCs-EVs offers a promising strategy to reshape the inflammatory microenvironment and promote disc regeneration in IVDD.

Indexed as

Extracellular VesiclesFibroinsHydrogelsInflammationIntervertebral Disc DegenerationMesenchymal Stem CellsAnimalsCellular MicroenvironmentDisease Models, AnimalMacrophagesMaleMiceMice, Inbred C57BLRAW 264.7 CellsFibroinsHydrogelsbone marrow mesenchymal stem cell‐derived extracellular vesiclesintervertebral disc degenerationmacrophage polarizationmRNA modificationsilk fibroin hydrogeltranscriptome analysis

Identifiers

PMID40903820
PMCPMC12408357

What OpenQuestion holds

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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.