Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidence

BackgroundThe study aims were to systematically review and analyze preclinical research on the efficacy of exosomes derived from various mesenchymal stem cell sources (MSC-exos) for the treatment of spinal cord contusion injury (SCI) in small animal models.MethodsWe conducted a systematic search of...

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Main Authors: Chunlin Mou, Ziyao Xia, Xiujuan Wang, Xunan Dai, Jiaxian Wang, Chun Zhang, Yongsheng Xu
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Neurology
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Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2025.1447414/full
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author Chunlin Mou
Ziyao Xia
Ziyao Xia
Ziyao Xia
Xiujuan Wang
Xunan Dai
Jiaxian Wang
Chun Zhang
Chun Zhang
Yongsheng Xu
Yongsheng Xu
Yongsheng Xu
author_facet Chunlin Mou
Ziyao Xia
Ziyao Xia
Ziyao Xia
Xiujuan Wang
Xunan Dai
Jiaxian Wang
Chun Zhang
Chun Zhang
Yongsheng Xu
Yongsheng Xu
Yongsheng Xu
author_sort Chunlin Mou
collection DOAJ
description BackgroundThe study aims were to systematically review and analyze preclinical research on the efficacy of exosomes derived from various mesenchymal stem cell sources (MSC-exos) for the treatment of spinal cord contusion injury (SCI) in small animal models.MethodsWe conducted a systematic search of PubMed, Embase and Google Scholar databases from their inception through February 29, 2024, to identify eligible English-language studies based on predefined inclusion and exclusion criteria. Two independent investigators performed literature screening, data extraction and bias assessment.ResultsA total of 235 rats were used to assess locomotor recovery at the initial assessment, and exhibited significant improvement in hind limb movement in those treated with exosomes, as indicated by a statistically significant increase in Basso-Beattie-Bresnahan (BBB) scores (MD: 1.26, 95% CI: 1.14–1.38, p < 0.01) compared to the controls. This trend persisted in final assessment data across 21 studies, with pooled analysis confirming similar results (MD: 1.56, 95% CI: 1.43–1.68, p < 0.01). Funnel plot analysis indicated asymmetry in the pooled BBB scores at both baseline and endpoint assessments, suggesting potential publication bias. Exosomes were derived from bone marrow, adipose tissue, umbilical cord or human placental MSCs. Meta-analysis results showed no statistically significant differences in therapeutic efficacy among these MSC-exos sources at various treatment time points.ConclusionMSC-exos demonstrated considerable promise in improving motor function in SCI-affected rats, with bone marrow MSC-derived exosomes having particularly notable effectiveness.
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publisher Frontiers Media S.A.
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spelling doaj-art-8eb146860a804176bbbf77c4b70525772025-01-24T05:21:17ZengFrontiers Media S.A.Frontiers in Neurology1664-22952025-01-011610.3389/fneur.2025.14474141447414Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidenceChunlin Mou0Ziyao Xia1Ziyao Xia2Ziyao Xia3Xiujuan Wang4Xunan Dai5Jiaxian Wang6Chun Zhang7Chun Zhang8Yongsheng Xu9Yongsheng Xu10Yongsheng Xu11Technology Department, Tianjin Everunion Biotechnology Co., Ltd., Beijing, ChinaDepartment of Ophthalmology, Peking University Third Hospital, Beijing, ChinaBeijing Tsinghua Changgung Hospital Eye Center, Beijing Tsinghua Changgung Hospital, Tsinghua Medicine, Tsinghua University, Beijing, ChinaBeijing Visual Science and Translational Eye Research Institute (BERI), Beijing, ChinaTechnology Department, Tianjin Everunion Biotechnology Co., Ltd., Beijing, ChinaBeijing Visual Science and Translational Eye Research Institute (BERI), Beijing, ChinaHELP Therapeutics Co., Ltd., Nanjing, ChinaDepartment of Ophthalmology, Peking University Third Hospital, Beijing, ChinaBeijing Tsinghua Changgung Hospital Eye Center, Beijing Tsinghua Changgung Hospital, Tsinghua Medicine, Tsinghua University, Beijing, ChinaTechnology Department, Tianjin Everunion Biotechnology Co., Ltd., Beijing, ChinaBeijing Visual Science and Translational Eye Research Institute (BERI), Beijing, ChinaChongqing Institute Of Health Resources Innovation, Chongqing, ChinaBackgroundThe study aims were to systematically review and analyze preclinical research on the efficacy of exosomes derived from various mesenchymal stem cell sources (MSC-exos) for the treatment of spinal cord contusion injury (SCI) in small animal models.MethodsWe conducted a systematic search of PubMed, Embase and Google Scholar databases from their inception through February 29, 2024, to identify eligible English-language studies based on predefined inclusion and exclusion criteria. Two independent investigators performed literature screening, data extraction and bias assessment.ResultsA total of 235 rats were used to assess locomotor recovery at the initial assessment, and exhibited significant improvement in hind limb movement in those treated with exosomes, as indicated by a statistically significant increase in Basso-Beattie-Bresnahan (BBB) scores (MD: 1.26, 95% CI: 1.14–1.38, p < 0.01) compared to the controls. This trend persisted in final assessment data across 21 studies, with pooled analysis confirming similar results (MD: 1.56, 95% CI: 1.43–1.68, p < 0.01). Funnel plot analysis indicated asymmetry in the pooled BBB scores at both baseline and endpoint assessments, suggesting potential publication bias. Exosomes were derived from bone marrow, adipose tissue, umbilical cord or human placental MSCs. Meta-analysis results showed no statistically significant differences in therapeutic efficacy among these MSC-exos sources at various treatment time points.ConclusionMSC-exos demonstrated considerable promise in improving motor function in SCI-affected rats, with bone marrow MSC-derived exosomes having particularly notable effectiveness.https://www.frontiersin.org/articles/10.3389/fneur.2025.1447414/fullmesenchymal stem cellsexosomesspinal cord injurylocomotor functionBasso-Beattie-Bresnahan scoresmeta-analysis
spellingShingle Chunlin Mou
Ziyao Xia
Ziyao Xia
Ziyao Xia
Xiujuan Wang
Xunan Dai
Jiaxian Wang
Chun Zhang
Chun Zhang
Yongsheng Xu
Yongsheng Xu
Yongsheng Xu
Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidence
Frontiers in Neurology
mesenchymal stem cells
exosomes
spinal cord injury
locomotor function
Basso-Beattie-Bresnahan scores
meta-analysis
title Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidence
title_full Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidence
title_fullStr Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidence
title_full_unstemmed Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidence
title_short Stem cell-derived exosome treatment for acute spinal cord injury: a systematic review and meta-analysis based on preclinical evidence
title_sort stem cell derived exosome treatment for acute spinal cord injury a systematic review and meta analysis based on preclinical evidence
topic mesenchymal stem cells
exosomes
spinal cord injury
locomotor function
Basso-Beattie-Bresnahan scores
meta-analysis
url https://www.frontiersin.org/articles/10.3389/fneur.2025.1447414/full
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