Evidence map›Paper›PMID 42578587›Full record

ArticleInvestigative ophthalmology & visual science2026

Adipose-Derived Mesenchymal Stem Cell Exosome miR-146a-5p Attenuates TGF-β2-Induced Transformation of Human Tenon's Capsule Fibroblasts by Targeting SMAD4.

Huijing Bao, Tongxin Tang, Mei Li, Yan Li, Dawei Song, Yibin Ma, Kai Meng

Abstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Huijing BaoDepartment of Ophthalmology, Affiliated Taian City Central Hospital of Qingdao Medical University, Taian City, People's Republic of China.
Tongxin TangDepartment of Ophthalmology, Affiliated Taian City Central Hospital of Qingdao Medical University, Taian City, People's Republic of China.
Mei LiDepartment of Colorectal and Anal Surgery, Affiliated Taian City Central Hospital of Qingdao Medical University, Taian City, People's Republic of China.
Yan LiDepartment of Ophthalmology, Affiliated Taian City Central Hospital of Qingdao Medical University, Taian City, People's Republic of China.
Dawei SongDepartment of Ophthalmology, Affiliated Taian City Central Hospital of Qingdao Medical University, Taian City, People's Republic of China.
Yibin MaDepartment of Ophthalmology, Affiliated Taian City Central Hospital of Qingdao Medical University, Taian City, People's Republic of China.
Kai MengDepartment of Colorectal and Anal Surgery, Affiliated Taian City Central Hospital of Qingdao Medical University, Taian City, People's Republic of China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Conjunctival fibrosis is the major impediment to the success of glaucoma filtration surgery. Exosomes secreted by human adipose-derived mesenchymal stem cells (hADSCs) could alleviate a variety of tissue fibrosis. However, the molecular mechanism of hADSCs-derived exosomes (hADSC-exos) in postoperative glaucoma follicle scarring is still unclear. Methods: The hADSC-exos were identified by a transmission electron microscope and nanoparticle tracking analysis. The hADSC-exos were traced in vitro by PKH67 staining, and uptake of exosomes by human Tenon's capsule fibroblast (HTF) cells was detected by the confocal method. After co-culturing hADSC-exos and transforming growth factor beta-2 (TGF-β2), HTF proliferation and migration were detected using Cell Counting Kit-8 and wound healing assay. Protein levels were examined using Western blot. The binding between miR-146a-5p and SMAD4 was predicted and verified using dual-luciferase reporter and RNA immunoprecipitation assay. Gain/loss-of-function studies using microRNA (miRNA)-modified exosomes and direct mimic transfection were performed. Anti-fibrotic efficacy was examined by a trabeculectomy model using New Zealand white rabbits in vivo. Results: The hADSC-exos could be internalized by HTFs. The miRNA-146a-5p is the most significantly upregulated in HTFs co-stimulated by TGF-β2 and hADSC-exos. After the screening, miR-146a-5p may be a potential target in HTFs treated with TGF-β2 combined with hADSCs-exos. Furthermore, hADSC exosomal miR-146a-5p inhibited TGF-β2-triggered HTF proliferation, migration, and fibrosis by targeting SMAD4. The miR-146a-5p inhibitor-loaded exosomes exacerbated fibrosis. Meanwhile, hADSC exosomal miR-146a-5p could attenuate fibrosis and collagen deposition in the tissue surrounding the glaucoma postoperative filter vesicles in vivo. Conclusions: The hADSC exosomal miR-146a-5p attenuated TGF-β2-stimulated HTF fibrotic response by targeting SMAD4.

Indexed as

ExosomesFibroblastsMesenchymal Stem CellsMicroRNAsSmad4 ProteinTenon CapsuleTransforming Growth Factor beta2Adipose TissueAnimalsBlotting, WesternCell MovementCell ProliferationCells, CulturedCoculture TechniquesDisease Models, AnimalFibrosisMicroRNAsMIRN146 microRNA, humanSmad4 ProteinSMAD4 protein, humanTransforming Growth Factor beta2

Identifiers

PMID42578587
PMCPMC13480036

What OpenQuestion holds

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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.