Evidence map›Paper›PMID 34522723›Full record

ArticleRegenerative therapy2021

Repair of spinal cord injury in rats via exosomes from bone mesenchymal stem cells requires sonic hedgehog.

Yijia Jia, Jianwen Yang, Tingsheng Lu, Xingwei Pu, Qiling Chen, Linsong Ji, Chunshan Luo

Open access · goldAbstract read
In one paragraph

Article in Regenerative therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
1.7field-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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

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  15. Exosomes combined with biomaterials in the treatment of spinal cord injury.Frontiers in bioengineering and biotechnology · 2023
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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

7 authors at 1 institution in 1 country.

Yijia JiaDepartment of Spine Surgery, Guizhou Province Osteological Hospital, Guiyang, 550002, China.
Jianwen YangDepartment of Spine Surgery, Guizhou Province Osteological Hospital, Guiyang, 550002, China.
Tingsheng LuDepartment of Spine Surgery, Guizhou Province Osteological Hospital, Guiyang, 550002, China.
Xingwei PuDepartment of Spine Surgery, Guizhou Province Osteological Hospital, Guiyang, 550002, China.
Qiling ChenDepartment of Spine Surgery, Guizhou Province Osteological Hospital, Guiyang, 550002, China.
Linsong JiDepartment of Spine Surgery, Guizhou Province Osteological Hospital, Guiyang, 550002, China.
Chunshan LuoDepartment of Spine Surgery, Guizhou Province Osteological Hospital, Guiyang, 550002, China.
Guizhou Cancer Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe loss of neural ability leading to subsequent diminishing of motor function and the impairment below the location of the injury is a result of the SCI (Spinal Cord Injury). Among the many therapeutic agents for SCI, the exosomes considered as extracellular vesicles seem to be the most promising. Sonic Hedgehog (Shh) is an exosome-carrying protein. This Study's purpose was to identify whether Shh is required for exosomes from BMSCs (mesenchymal stem cells of the bone) and plays a protective effect on SCI.

methodsSpinal cord injection with shRNA Shh-adeno associated virus (sh-Shh-AAV) were used to silence Shh. Exosomes were extracted from BMSCs. Rats that had suffered SCI were given intravenous injections of exosomes through the veins of the tail. Immunohistochemistry was used to identify the expression of Shh glycoprotein molecule as well as the expression of Gli-1 (glioma-associated oncogene homolog 1) in the rat spinal cord tissues. Western blot was performed to measure the levels of growth associated protein-43 (GAP-43). The BBB (Basso Beattie Bresnahan) score was used to assess the motor functions of the hind legs. In the same manner, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling or TUNEL and Nissl Staining was deployed to assess the level of regeneration of neurons and assess the level of histopathological damage in the tissues of the Spinal Cord.

resultsIn the case of the rats with SCI, the levels of display of Gli-1 and Shh showed dramatic improvement after the BMSCs exosome injections. In comparison to rats with SCI, the subjects of BMSCs exosomes group showed an improvement in their SCI, including a higher BBB score and Nissl body count, increasing GAP-43 expression, along with a much-decreased number of cells that suffered apoptosis. While the exosome effect on Spinal Cord Injury was completely ineffective in rats that had Shh silencing.

conclusionsExosomes secreted from BMSCs showed great effectiveness in the SCI healing with a vital involvement of Shh in this repair.

Indexed as

BMSCsExosomesSonic hedgehogSpinal cord injury

Identifiers

PMID34522723
PMCPMC8416644
OpenAlexW3197507394

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.