Evidence map›Paper›PMID 34926690›Full record

ArticleBioMed research international2021

Exosomes Derived from M2 Macrophages Exert a Therapeutic Effect via Inhibition of the PI3K/AKT/mTOR Pathway in Rats with Knee Osteoarthritic.

Zha Xi Da-Wa, Ma Jun, Liu Chao-Zheng, Yang Sen-Lin, Lu Chuan, Li De-Chun, Dong Zu-Nan, Zhao Hong-Tao, Wei Shu-Qing, Pei Xian-Wei and 2 more

Open access · hybridAbstract read
In one paragraph

Article in BioMed research international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

31 citing papers in PubMed, 39 citations in OpenAlex.

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  16. Exosomes in cartilage microenvironment regulation and cartilage repair.Frontiers in cell and developmental biology · 2025
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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

12 authors at 3 institutions in 1 country.

Zha Xi Da-Wa *Qinghai University Affiliated Hospital, Department of Joint Surgery, China.
Ma Jun *Qinghai University Affiliated Hospital, Department of Spine Surgery, China.
Liu Chao-ZhengQinghai University Affiliated Hospital, Department of Joint Surgery, China.
Yang Sen-LinQinghai University Affiliated Hospital, Department of Joint Surgery, China.
Lu ChuanQinghai University Affiliated Hospital, Department of Joint Surgery, China.
Li De-ChunQinghai University Affiliated Hospital, Department of Joint Surgery, China.
Dong Zu-NanHebei PetroChina Central Hospital, China.
Zhao Hong-TaoQinghai University Affiliated Hospital, Department of Joint Surgery, China.
Wei Shu-QingQinghai University Affiliated Hospital, Department of Joint Surgery, China.
Pei Xian-WeiSuzhou Municipal Hospital of Anhui Province, Department of Orthopedics, China.
Liu WenboTranslational Research Institute of Intensive Care Medicine, School of Anesthesiology, Weifang Medical University, China.ORCID https://orcid.org/0000-0003-3627-3337
Li Ke-WenQinghai University Affiliated Hospital, Department of Joint Surgery, China.ORCID https://orcid.org/0000-0001-7950-2537
Qinghai University Affiliated Hospital · CNSuzhou Municipal Hospital · CNWeifang Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Macrophages are commonly classified as M1 macrophages or M2 macrophages. M2 macrophages are obtained by stimulation of IL-4 with anti-inflammatory and tissue repair effects. Exosomes are 30-150 nm lipid bilayer membrane vesicles derived from most living cells and have a variety of biological functions. Previous studies have shown that macrophage exosomes can influence the course of some autoimmune diseases, but their effect on knee osteoarthritis (KOA) has not been reported. Here, we analyze the roles of exosomes derived from M2 macrophage phenotypes in KOA rats. Exosomes were isolated from the supernatant of M2 macrophages and identified via transmission electron microscopy (TEM), Western blotting, and DLS. The results showed that M2 macrophage exosomes significantly attenuated the inflammatory response and pathological damage of articular cartilage in KOA rats. In addition, a key protein associated with KOA including Aggrecan, Col-10, SOX6, and Runx2 was significantly increased, while MMP-13 was significantly suppressed following treatment with M2 macrophage exosomes. The present study indicated that M2 macrophage exosomes exerted protective effects on KOA rats mainly mediated by the PI3K/AKT/mTOR signal pathway. These findings provide a novel approach for the treatment of KOA.

Indexed as

AnimalsDisease Models, AnimalExosomesInflammationMacrophagesMaleOsteoarthritis, KneePhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktRatsRats, Sprague-DawleySignal TransductionTOR Serine-Threonine KinasesmTOR protein, ratPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktTOR Serine-Threonine Kinases

Identifiers

PMID34926690
PMCPMC8683166
OpenAlexW4200113660

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.