Evidence map›Paper›PMID 39030590›Full record

ArticleBMC musculoskeletal disorders2024

Exosomes derived from mir-337-3p over-expressing tendon stem cells protect against apoptosis of tenocytes via targeting caspase3.

Qing An, Zipeng Zhou, Chang Xu, Qiang Xiao

Abstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

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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

4 citing papers in PubMed.

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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

4 authors.

Qing AnDepartment of Hand Surgery, The First Affiliated Hospital of JinZhou Medical University, No.2, Renmin Street, Section 5, Guta District, Jinzhou City, Liaoning Province, 121000, China.
Zipeng ZhouDepartment of Hand Surgery, The First Affiliated Hospital of JinZhou Medical University, No.2, Renmin Street, Section 5, Guta District, Jinzhou City, Liaoning Province, 121000, China.
Chang XuDepartment of Hand Surgery, The First Affiliated Hospital of JinZhou Medical University, No.2, Renmin Street, Section 5, Guta District, Jinzhou City, Liaoning Province, 121000, China.
Qiang XiaoDepartment of Hand Surgery, The First Affiliated Hospital of JinZhou Medical University, No.2, Renmin Street, Section 5, Guta District, Jinzhou City, Liaoning Province, 121000, China. xiaoqiang6990@hotmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTendons are important dense fibrous structures connecting muscle to bone, and tendon stem cells (TDSCs) affect their repair and regeneration. The role of TDSC-derived exosomes (TDSC-Exos) is still being unexplored; therefore, this study aimed to investigate the protective effect of TDSC-Exos on tenocytes.

methodsThe TDSCs and tenocytes were all derived from Sprague Dawley (SD) rats. The expression of positive and negative markers of TDSCs were detected by flow cytometry, and the multi-differentiation ability was also detected to identify TDSCs. Exos were derived from TDSCs using ultracentrifugation; furthermore, Exos enriched with microRNA(miR)-377-3p were generated from TDSCs stably overexpressing miR-377-3p after transfection, identified with transmission electron microscopy (TEM), western blot and PKH26 staining assay. Moreover, the cell functions of tenocytes were evaluated by MTT, EdU, transwell, and flow cytometry. Dual luciferase reporter and RNA pull-down assays were used to verify the binding sites of miR-337-3p and caspase3 (CASP3) predicted by Targetscan.

resultsExos (miR-337-3p) were taken up by tenocytes, and promoted the proliferation, migration, and invasion and suppressed the apoptosis of tenocytes in a dose-dependent manner. Bioinformatics analysis showed that CASP3 was a target of miR-377-3p, which was further verified by luciferase and RNA pull-down assays. Moreover, over-expressed CASP3 reversed the effects of Exos (miR-337-3p) on cell functions of tenocytes.

conclusionsOur findings suggest that Exos derived from miR-337-3p over-expressing TDSCs could potentially protect against tenocyte apoptosis by regulating CASP3. This novel therapeutic approach holds promise for the treatment of tendon injury, offering a glimmer of hope for improved patient outcomes.

Indexed as

ApoptosisCaspase 3ExosomesMicroRNAsRats, Sprague-DawleyStem CellsTendonsTenocytesAnimalsCell MovementCell ProliferationCells, CulturedMaleRatsTendon InjuriesCasp3 protein, ratCaspase 3MicroRNAsCASP3ExosomesmiR-337-3pTendonTendon stem cellsTenocyte

Identifiers

PMID39030590
PMCPMC11264700

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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.