Evidence map›Paper›PMID 34016170›Full record

ArticleStem cell research & therapy2021

Role of CD44 in increasing the potency of mesenchymal stem cell extracellular vesicles by hyaluronic acid in severe pneumonia.

Li Zhou, Qi Hao, Shinji Sugita, Yoshifumi Naito, Hongli He, Che-Chung Yeh, Jae-Woo Lee

Open access · goldAbstract read
In one paragraph

Article in Stem cell research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 28 citations in OpenAlex.

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  11. Analysis of theCells · 2024
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  18. Extracellular vesicle-matrix interactions.Nature reviews. Materials · 2023
    Article
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  20. 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

7 authors at 2 institutions in 2 countries.

Li ZhouDepartment of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Qi HaoDepartment of Anesthesiology, University of California, San Francisco, 505 Parnassus Ave., Box 0648, San Francisco, CA, USA.
Shinji SugitaDepartment of Anesthesiology, University of California, San Francisco, 505 Parnassus Ave., Box 0648, San Francisco, CA, USA.
Yoshifumi NaitoDepartment of Anesthesiology, University of California, San Francisco, 505 Parnassus Ave., Box 0648, San Francisco, CA, USA.
Hongli HeDepartment of Anesthesiology, University of California, San Francisco, 505 Parnassus Ave., Box 0648, San Francisco, CA, USA.
Che-Chung YehDepartment of Anesthesiology, University of California, San Francisco, 505 Parnassus Ave., Box 0648, San Francisco, CA, USA.
Jae-Woo LeeDepartment of Anesthesiology, University of California, San Francisco, 505 Parnassus Ave., Box 0648, San Francisco, CA, USA. Jae-Woo.Lee@ucsf.edu.
University of California, San Francisco · USSecond Xiangya Hospital of Central South University · CN

Funding

Human Mesenchymal Stem Cell Microvesicles for the Treatment of Acute Lung InjuryR01HL113022 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LEE, JAE WOO · 2012 to 2020
$4.1M
Therapeutic Use of High Molecular Weight Hyaluronic Acid in Acute Lung Injury Following Severe Bacterial Pneumonia or SepsisR01HL148781 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ENKHBAATAR, PERENLEI, LEE, JAE WOO · 2020 to 2023
$3.2M
NHLBI NIH HHS R01 HL113022NHLBI NIH HHS R01 HL148781
6 · The paper itself

Abstract

backgroundAlthough promising, clinical translation of human mesenchymal stem or stromal cell-derived extracellular vesicles (MSC EV) for acute lung injury is potentially limited by significant production costs. The current study was performed to determine whether pretreatment of MSC EV with high molecular weight hyaluronic acid (HMW HA) would increase the therapeutic potency of MSC EV in severe bacterial pneumonia.

methodsIn vitro experiments were performed to determine the binding affinity of HMW HA to MSC EV and its uptake by human monocytes, and whether HMW HA primed MSC EV would increase bacterial phagocytosis by the monocytes. In addition, the role of CD44 receptor on MSC EV in the therapeutic effects of HMW HA primed MSC EV were investigated. In Pseudomonas aeruginosa (PA) pneumonia in mice, MSC EV primed with or without HMW HA were instilled intravenously 4 h after injury. After 24 h, the bronchoalveolar lavage fluid, blood, and lungs were analyzed for levels of bacteria, inflammation, MSC EV trafficking, and lung pathology.

resultsMSC EV bound preferentially to HMW HA at a molecular weight of 1.0 MDa compared with HA with a molecular weight of 40 KDa or 1.5 MDa. HMW HA primed MSC EV further increased MSC EV uptake and bacterial phagocytosis by monocytes compared to treatment with MSC EV alone. In PA pneumonia in mice, instillation of HMW HA primed MSC EV further reduced inflammation and decreased the bacterial load by enhancing the trafficking of MSC EV to the injured alveolus. CD44 siRNA pretreatment of MSC EV prior to incubation with HMW HA eliminated its trafficking to the alveolus and therapeutic effects.

conclusionsHMW HA primed MSC EV significantly increased the potency of MSC EV in PA pneumonia in part by enhancing the trafficking of MSC EV to the sites of inflammation via the CD44 receptor on MSC EV which was associated with increased antimicrobial activity.

Indexed as

Acute Lung InjuryExtracellular VesiclesMesenchymal Stem CellsAnimalsHyaluronic AcidLungMiceHyaluronic AcidCD44Extracellular vesiclesHyaluronic acidMesenchymal stem cellPseudomonas aeruginosa pneumonia

Identifiers

PMID34016170
PMCPMC8136222
OpenAlexW3163176796

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.