文献检索文档翻译深度研究
Suppr Zotero 插件Zotero 插件
邀请有礼套餐&价格历史记录

新学期,新优惠

限时优惠:9月1日-9月22日

30天高级会员仅需29元

1天体验卡首发特惠仅需5.99元

了解详情
不再提醒
插件&应用
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
高级版
套餐订阅购买积分包
AI 工具
文献检索文档翻译深度研究
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利:CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2025

磁靶向脂肪间充质干细胞修复创伤性坐骨神经损伤的研究

Sciatic nerve regeneration after traumatic injury using magnetic targeted adipose-derived mesenchymal stem cells.

机构信息

Departamento de Química Biológica, Cátedra de Química Biológica Patológica. Junín 956, Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina; Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina.

Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina.

出版信息

Acta Biomater. 2021 Aug;130:234-247. doi: 10.1016/j.actbio.2021.05.050. Epub 2021 May 31.


DOI:10.1016/j.actbio.2021.05.050
PMID:34082099
Abstract

Traumatic peripheral nerve injuries constitute a huge concern to public health. Nerve damage leads to a decrease or even loss of mobility of the innervated area. Adult stem cell therapies have shown some encouraging results and have been identified as promising treatment candidates for nerve regeneration. A major obstacle to that approach is securing a sufficient number of cells at the injured site to produce measurable therapeutic effects. The present work tackles this issue and demonstrates enhanced nerve regeneration ability promoted by magnetic targeted cell therapy in an in vivo Wallerian degeneration model. To this end, adipose-derived mesenchymal stem cells (AdMSC) were loaded with citric acid coated superparamagnetic iron oxide nanoparticles (SPIONs), systemically transplanted and magnetically recruited to the injured sciatic nerve. AdMSC arrival to the injured nerve was significantly increased using magnetic targeting and their beneficial effects surpassed the regenerative properties of the stand-alone cell therapy. AdMSC-SPIONs group showed a partially conserved nerve structure with many intact myelinated axons. Also, a very remarkable restoration in myelin basic protein organization, indicative of remyelination, was observed. This resulted in an improvement in nerve conduction, demonstrating functional recovery. In summary, our results demonstrate that magnetically assisted delivery of AdMSC, using a non-invasive and non-traumatic method, is a highly promising strategy to promote cell recruitment and sciatic nerve regeneration after traumatic injury. Last but not least, our results validate magnetic targeting in vivo exceeding previous reports in less complex models through cell magnetic targeting in vitro and ex vivo. STATEMENT OF SIGNIFICANCE: Traumatic peripheral nerve injuries constitute a huge public health concern. They can lead to a decrease or even loss of mobility of innervated areas. Due to their complex pathophysiology, current pharmacological and surgical approaches are only partially effective. Cell-based therapies have emerged as a useful tool to achieve full tissue regeneration. However, a major bottleneck is securing enough cells at injured sites. Therefore, our proposal combining biological (adipose derived mesenchymal stem cells) and nanotechnological strategies (magnetic targeting) is of great relevance, reporting the first in vivo experiments involving "magnetic stem cell" targeting for peripheral nerve regeneration. Using a non-invasive and non-traumatic method, cell recruitment in the injured nerve was improved, fostering nerve remyelination and functional recovery.

摘要

外伤性周围神经损伤对公共健康构成了巨大的威胁。神经损伤会导致支配区域的运动功能下降甚至丧失。成人干细胞疗法已经显示出一些令人鼓舞的结果,并被确定为神经再生有前途的治疗候选物。该方法的一个主要障碍是在损伤部位获得足够数量的细胞,以产生可衡量的治疗效果。本研究解决了这一问题,并在体内 Wallerian 变性模型中证明了磁靶向细胞疗法促进神经再生的能力。为此,将柠檬酸涂层超顺磁性氧化铁纳米粒子(SPION)负载到脂肪来源的间充质干细胞(AdMSC)中,系统移植并通过磁场募集到损伤的坐骨神经。通过磁靶向显著增加了 AdMSC 到达损伤神经的数量,并且其有益效果超过了单独细胞疗法的再生特性。AdMSC-SPION 组表现出部分保留的神经结构,有许多完整的髓鞘轴突。此外,还观察到髓鞘碱性蛋白组织的显著恢复,表明发生了髓鞘再生。这导致神经传导的改善,表明功能恢复。总之,我们的结果表明,使用非侵入性和非创伤性方法进行磁辅助 AdMSC 递送是一种很有前途的策略,可以促进外伤性损伤后细胞募集和坐骨神经再生。最后但同样重要的是,我们的结果通过体外和离体的细胞磁靶向验证了体内的磁靶向,超过了以前在较简单模型中的报告。

意义声明:外伤性周围神经损伤对公共健康构成了巨大的威胁。它们会导致支配区域的运动功能下降甚至丧失。由于其复杂的病理生理学,目前的药物和手术方法仅部分有效。基于细胞的疗法已成为实现组织完全再生的有用工具。然而,一个主要的瓶颈是在损伤部位获得足够的细胞。因此,我们提出的结合生物(脂肪来源的间充质干细胞)和纳米技术(磁靶向)的策略非常重要,首次报道了涉及外周神经再生的“磁性干细胞”靶向的体内实验。使用非侵入性和非创伤性方法,改善了损伤神经中的细胞募集,促进了神经髓鞘再生和功能恢复。

相似文献

[1]
Sciatic nerve regeneration after traumatic injury using magnetic targeted adipose-derived mesenchymal stem cells.

Acta Biomater. 2021-8

[2]
Exosomes from human adipose-derived stem cells promote sciatic nerve regeneration via optimizing Schwann cell function.

J Cell Physiol. 2019-5-23

[3]
Effect of Exosomes from Rat Adipose-Derived Mesenchymal Stem Cells on Neurite Outgrowth and Sciatic Nerve Regeneration After Crush Injury.

Mol Neurobiol. 2018-6-21

[4]
Human adipose-derived mesenchymal stem cells systemically injected promote peripheral nerve regeneration in the mouse model of sciatic crush.

Tissue Eng Part A. 2012-4-3

[5]
Magnetic resonance imaging monitoring dual-labeled stem cells for treatment of mouse nerve injury.

Cytotherapy. 2013-5-30

[6]
Neural Progenitor-Like Cells Induced from Human Gingiva-Derived Mesenchymal Stem Cells Regulate Myelination of Schwann Cells in Rat Sciatic Nerve Regeneration.

Stem Cells Transl Med. 2016-9-7

[7]
Extracellular vesicles from human umbilical cord mesenchymal stem cells improve nerve regeneration after sciatic nerve transection in rats.

J Cell Mol Med. 2019-2-17

[8]
Differentiated mesenchymal stem cells-derived exosomes immobilized in decellularized sciatic nerve hydrogels for peripheral nerve repair.

J Control Release. 2024-4

[9]
Tissue engineering with peripheral blood-derived mesenchymal stem cells promotes the regeneration of injured peripheral nerves.

Exp Neurol. 2017-3-7

[10]
The mesenchymal stem cell-derived microvesicles enhance sciatic nerve regeneration in rat: a novel approach in peripheral nerve cell therapy.

J Trauma Acute Care Surg. 2014-4

引用本文的文献

[1]
Advances in mesenchymal stem cells and their derivatives for promoting peripheral nerve regeneration.

Burns Trauma. 2025-5-19

[2]
Metal-Based Regenerative Strategies for Peripheral Nerve Injuries: From Biodegradable Ion Source to Stable Conductive Implants.

Biomater Res. 2025-7-22

[3]
Revolutionizing neural regeneration with smart responsive materials: Current insights and future prospects.

Bioact Mater. 2025-6-13

[4]
Revolutionizing nerve regeneration: A novel approach using polylactic acid/chitosan conduit with nerve-like cells and in male rat model.

Regen Ther. 2025-5-15

[5]
Investigating nanoparticle's utilization in stem cell therapy for neurological disorders.

Am J Stem Cells. 2025-4-15

[6]
Assessing the Effectiveness of the Coprecipitation Method in Synthesizing Magnetic Nanocomposites Based on Iron Oxides Coated with Hydroxyapatite.

ACS Omega. 2025-4-3

[7]
Potentially commercializable nerve guidance conduits for peripheral nerve injury: Past, present, and future.

Mater Today Bio. 2025-2-5

[8]
Physical modulation and peripheral nerve regeneration: a literature review.

Cell Regen. 2024-12-23

[9]
Recent perspectives on the synergy of mesenchymal stem cells with micro/nano strategies in peripheral nerve regeneration-a review.

Front Bioeng Biotechnol. 2024-7-10

[10]
Harnessing three-dimensional porous chitosan microsphere embedded with adipose-derived stem cells to promote nerve regeneration.

Stem Cell Res Ther. 2024-6-1

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

推荐工具

医学文档翻译智能文献检索