Evidence map›Paper›PMID 38445369›Full record

ArticleJournal of neurotrauma2024

Beneficial Effects of Human Schwann Cell-Derived Exosomes in Mitigating Secondary Damage After Penetrating Ballistic-Like Brain Injury.

Kengo Nishimura, Juliana Sanchez-Molano, Nadine Kerr, Yelena Pressman, Risset Silvera, Aisha Khan, Shyam Gajavelli, Helen M Bramlett, W Dalton Dietrich

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurotrauma, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 10 citations in OpenAlex.

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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

9 authors at 2 institutions in 1 country.

Kengo NishimuraThe Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida, USA.
Juliana Sanchez-MolanoThe Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida, USA.
Nadine KerrDepartment of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA.
Yelena PressmanThe Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida, USA.
Risset SilveraInterdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, Florida, USA.
Aisha KhanThe Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida, USA.
Shyam GajavelliNeuroscience, Lacerta Therapeutics, Alachua, Florida, USA.
Helen M BramlettDepartment of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA.
W Dalton DietrichDepartment of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA.
University of Miami · USApplied Food Technologies (United States) · US

Funding

Human Schwann Cell-Derived Exosome Treatment for Traumatic Brain InjuryR37NS133195 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI W Dalton Dietrich · 2023 to 2026
$1.7M
NINDS NIH HHS R37 NS133195
6 · The paper itself

Abstract

There is a growing body of evidence that the delivery of cell-derived exosomes normally involved in intracellular communication can reduce secondary injury mechanisms after brain and spinal cord injury and improve outcomes. Exosomes are nanometer-sized vesicles that are released by Schwann cells and may have neuroprotective effects by reducing post-traumatic inflammatory processes as well as promoting tissue healing and functional recovery. The purpose of this study was to evaluate the beneficial effects of human Schwann-cell exosomes (hSC-Exos) in a severe model of penetrating ballistic-like brain injury (PBBI) in rats and investigate effects on multiple outcomes. Human Schwann cell processing protocols followed Current Good Manufacturing Practices (cGMP) with exosome extraction and purification steps approved by the Food and Drug Administration for an expanded access single ALS patient Investigational New Drug. Anesthetized male Sprague-Dawley rats (280-350g) underwent PBBI surgery or Sham procedures and, starting 30 min after injury, received either a dose of hSC-Exos or phosphate-buffered saline through the jugular vein. At 48h after PBBI, flow cytometry analysis of cortical tissue revealed that hSC-Exos administration reduced the number of activated microglia and levels of caspase-1, a marker of inflammasome activation. Neuropathological analysis at 21 days showed that hSC-Exos treatment after PBBI significantly reduced overall contusion volume and decreased the frequency of Iba-1 positive activated and amoeboid microglia by immunocytochemical analysis. This study revealed that the systemic administration of hSC-Exos is neuroprotective in a model of severe TBI and reduces secondary inflammatory injury mechanisms and histopathological damage. The administration of hSC-Exos represents a clinically relevant cell-based therapy to limit the detrimental effects of neurotrauma or other progressive neurological injuries by impacting multiple pathophysiological events and promoting neurological recovery.

Indexed as

ExosomesHead Injuries, PenetratingRats, Sprague-DawleySchwann CellsAnimalsHumansMaleRatsexosomeshuman Schwann cellsinflammasomeinflammationpenetrating ballistic-like brain injurytraumatic brain injury

Identifiers

PMID38445369
PMCPMC11631803
OpenAlexW4392510050

What OpenQuestion holds

Textmetadata
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.