Evidence map›Paper›PMID 34453976›Full record

ArticleNeurochemistry international2021

Intranasal delivery of exosomes from human adipose derived stem cells at forty-eight hours post injury reduces motor and cognitive impairments following traumatic brain injury.

Lauren D Moss, Derek Sode, Rekha Patel, Ashley Lui, Charles Hudson, Niketa A Patel, Paula C Bickford

Open access · greenAbstract read
In one paragraph

Article in Neurochemistry international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 3 pooled it
2.8field-weighted citation impact, top 8% 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

38 citing papers in PubMed, 3 syntheses or guidelines pooled it, 57 citations in OpenAlex.

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  10. Unveiling the predictive power of biomarkers in traumatic brain injury: A narrative review focused on clinical outcomes.Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia · 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

7 authors at 2 institutions in 1 country.

Lauren D MossDepartment of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA.
Derek SodeDepartment of Molecular Medicine, University of South Florida Morsani College of Medicine, Tampa, FL, USA.
Rekha PatelJames A. Haley Veterans Hospital, Research Service, Tampa, FL, USA.
Ashley LuiDepartment of Molecular Medicine, University of South Florida Morsani College of Medicine, Tampa, FL, USA.
Charles HudsonJames A. Haley Veterans Hospital, Research Service, Tampa, FL, USA.
Niketa A PatelJames A. Haley Veterans Hospital, Research Service, Tampa, FL, USA; Department of Molecular Medicine, University of South Florida Morsani College of Medicine, Tampa, FL, USA. Electronic address: niketa.patel@va.gov.
Paula C BickfordDepartment of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA; James A. Haley Veterans Hospital, Research Service, Tampa, FL, USA. Electronic address: pbickfor@usf.edu.
University of South Florida · USJames A. Haley Veterans' Hospital · US

Funding

Aging and Microglial PolarizationI01BX003421 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI BICKFORD, PAULA C · 2016 to 2020
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Adipose stem cells' niche in obesityI01BX003836 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI Niketa A. Patel · 2017 to 2026
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BLRD Research Career Scientist Award ApplicationIK6BX004214 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI BICKFORD, PAULA C · 2018 to 2025
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BLRD Research Career Scientist Award ApplicationIK6BX005387 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI PATEL, NIKETA A. · 2021 to 2025
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BLRD VA I01 BX003421BLRD VA I01 BX003836BLRD VA I01 BX005591BLRD VA IK6 BX004214BLRD VA IK6 BX005387
6 · The paper itself

Abstract

The neuroprotective role of human adipose-derived stems cells (hASCs) has raised great interest in regenerative medicine due to their ability to modulate their surrounding environment. Our group has demonstrated that exosomes derived from hASC (hASCexo) are a cell-free regenerative approach to long term recovery following traumatic brain injury (TBI). Previously, we demonstrated the efficacy of exosome treatment with intravenous delivery at 3 h post TBI in rats. Here, we show efficacy of exosomes through intranasal delivery at 48 h post TBI in mice lengthening the therapeutic window of treatment and therefore increasing possible translation to clinical studies. Our findings demonstrate significant recovery of motor impairment assessed by an elevated body swing test in mice treated with exosomes containing MALAT1 compared to both TBI mice without exosomes and exosomes depleted of MALAT1. Significant cognitive improvement was seen in the reversal trial of 8 arm radial arm water maze in mice treated with exosomes containing MALAT1. Furthermore, cortical damage was significantly reduced in mice treated with exosomes containing MALAT1 as well as decreased MHCII+ staining of microglial cells. Mice without exosomes or treated with exosomes depleted of MALAT1 did not show similar recovery. Results demonstrate both inflammation related genes and NRTK3 (TrkC) are target genes modulated by hASC exosomes and further that MALAT1 in hASC exosomes regulates expression of full length TrkC thereby activating the MAPK pathway and promoting recovery. Exosomes are a promising therapeutic approach following TBI with a therapeutic window of at least 48 h and contain long noncoding RNA's, specifically MALAT1 that play a vital role in the mechanism of action.

Indexed as

Adipose TissueAdministration, IntranasalAnimalsBrain Injuries, TraumaticCells, CulturedCognitive DysfunctionExosomesHumansMaleMiceMice, Inbred C57BLMotor DisordersRNA, Long NoncodingStem Cell TransplantationTime-to-TreatmentMALAT1 long non-coding RNA, humanRNA, Long NoncodingAdipose derived stem cellsExosomesInflammationMALAT1NRTK3TBITrkC

Identifiers

PMID34453976
PMCPMC8511339
OpenAlexW3195079206

What OpenQuestion holds

Textmetadata
LicenceTDM
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.