Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysis

Background: Exosomes, especially stem cell-derived exosomes, have been widely studied in pre-clinical research of ischemic stroke. However, their pooled effects remain inconclusive.Methods: Relevant literature concerning the effects of exosomes on neurological performance in a rodent model of ischem...

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Main Authors: Mudan Huang, Zhongqiu Hong, Chongjun Xiao, Lili Li, Lilin Chen, Shimei Cheng, Tingting Lei, Haiqing Zheng
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-11-01
Series:Frontiers in Cellular Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fncel.2020.593130/full
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author Mudan Huang
Zhongqiu Hong
Chongjun Xiao
Lili Li
Lilin Chen
Shimei Cheng
Tingting Lei
Haiqing Zheng
author_facet Mudan Huang
Zhongqiu Hong
Chongjun Xiao
Lili Li
Lilin Chen
Shimei Cheng
Tingting Lei
Haiqing Zheng
author_sort Mudan Huang
collection DOAJ
description Background: Exosomes, especially stem cell-derived exosomes, have been widely studied in pre-clinical research of ischemic stroke. However, their pooled effects remain inconclusive.Methods: Relevant literature concerning the effects of exosomes on neurological performance in a rodent model of ischemic stroke was identified via searching electronic databases, including PubMed, Embase, and Web of Science. The primary outcomes included neurological function scores (NFS) and infarct volume (IV), and the secondary outcomes were several pro-inflammatory factors and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling-positive cells. Subgroup analyses regarding several factors potentially influencing the effects of exosomes on NFS and IV were also conducted.Results: We identified 21 experiments from 18 studies in the meta-analysis. Pooled analyses showed the positive and significant effects of exosomes on NFS (standardized mean difference −2.79; 95% confidence interval −3.81 to −1.76) and IV (standardized mean difference −3.16; 95% confidence interval −4.18 to −2.15). Our data revealed that the effects of exosomes on neurological outcomes in rodent stroke models might be related to routes of administration and exosomes sources. In addition, there was significant attenuation in pro-inflammatory factors, including interleukin-6, tumor necrosis factor-α and interleukin-1β, and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling-positive cells when undergoing exosomes treatment.Conclusion: Cell-derived exosomes treatment demonstrated statistically significant improvements in structural and neurological function recovery in animal models of ischemic stroke. Our results also provide relatively robust evidence supporting cell-derived exosomes as a promising therapy to promote neurological recovery in stroke individuals.
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spelling doaj.art-eb2a5464482c4627b2e15d0ba98349892022-12-21T23:35:04ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022020-11-011410.3389/fncel.2020.593130593130Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysisMudan HuangZhongqiu HongChongjun XiaoLili LiLilin ChenShimei ChengTingting LeiHaiqing ZhengBackground: Exosomes, especially stem cell-derived exosomes, have been widely studied in pre-clinical research of ischemic stroke. However, their pooled effects remain inconclusive.Methods: Relevant literature concerning the effects of exosomes on neurological performance in a rodent model of ischemic stroke was identified via searching electronic databases, including PubMed, Embase, and Web of Science. The primary outcomes included neurological function scores (NFS) and infarct volume (IV), and the secondary outcomes were several pro-inflammatory factors and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling-positive cells. Subgroup analyses regarding several factors potentially influencing the effects of exosomes on NFS and IV were also conducted.Results: We identified 21 experiments from 18 studies in the meta-analysis. Pooled analyses showed the positive and significant effects of exosomes on NFS (standardized mean difference −2.79; 95% confidence interval −3.81 to −1.76) and IV (standardized mean difference −3.16; 95% confidence interval −4.18 to −2.15). Our data revealed that the effects of exosomes on neurological outcomes in rodent stroke models might be related to routes of administration and exosomes sources. In addition, there was significant attenuation in pro-inflammatory factors, including interleukin-6, tumor necrosis factor-α and interleukin-1β, and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling-positive cells when undergoing exosomes treatment.Conclusion: Cell-derived exosomes treatment demonstrated statistically significant improvements in structural and neurological function recovery in animal models of ischemic stroke. Our results also provide relatively robust evidence supporting cell-derived exosomes as a promising therapy to promote neurological recovery in stroke individuals.https://www.frontiersin.org/articles/10.3389/fncel.2020.593130/fullexosomesanimal modelsischemic strokecell-derived exosomesmeta-analysis
spellingShingle Mudan Huang
Zhongqiu Hong
Chongjun Xiao
Lili Li
Lilin Chen
Shimei Cheng
Tingting Lei
Haiqing Zheng
Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysis
Frontiers in Cellular Neuroscience
exosomes
animal models
ischemic stroke
cell-derived exosomes
meta-analysis
title Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysis
title_full Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysis
title_fullStr Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysis
title_full_unstemmed Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysis
title_short Effects of Exosomes on Neurological Function Recovery for Ischemic Stroke in Pre-clinical Studies: A Meta-analysis
title_sort effects of exosomes on neurological function recovery for ischemic stroke in pre clinical studies a meta analysis
topic exosomes
animal models
ischemic stroke
cell-derived exosomes
meta-analysis
url https://www.frontiersin.org/articles/10.3389/fncel.2020.593130/full
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