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Sciatic nerve regeneration after traumatic injury using magnetic targeted adipose-derived mesenchymal stem cells.
Soto, Paula A; Vence, Marianela; Piñero, Gonzalo M; Coral, Diego F; Usach, Vanina; Muraca, Diego; Cueto, Alicia; Roig, Anna; van Raap, Marcela B Fernández; Setton-Avruj, Clara P.
Afiliação
  • Soto PA; 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, Ar
  • Vence M; Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina.
  • Piñero GM; 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, Ar
  • Coral DF; Instituto de Física La Plata (IFLP - CONICET), Departamento de Física, Facultad de Ciencias, Exactas, Universidad Nacional de La Plata (UNLP), c.c. 67, 1900, La Plata, Argentina.
  • Usach V; 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, Ar
  • Muraca D; Instituto de Física 'Gleb Wataghin', Universidade Estadual de Campinas, R. Sérgio Buarque de Holanda, 777 - 13083-859, Campinas, Brazil.
  • Cueto A; Hospital Español, Servicio de Neurología. Av. Belgrano 2975 C1209, Buenos Aires, Argentina.
  • Roig A; Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, 08193 Bellaterra, Catalonia, Spain.
  • van Raap MBF; Instituto de Física La Plata (IFLP - CONICET), Departamento de Física, Facultad de Ciencias, Exactas, Universidad Nacional de La Plata (UNLP), c.c. 67, 1900, La Plata, Argentina.
  • Setton-Avruj CP; 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, Ar
Acta Biomater ; 130: 234-247, 2021 08.
Article em En | MEDLINE | ID: mdl-34082099
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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Células-Tronco Mesenquimais / Traumatismos dos Nervos Periféricos Limite: Humans Idioma: En Revista: Acta Biomater Ano de publicação: 2021 Tipo de documento: Article País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Células-Tronco Mesenquimais / Traumatismos dos Nervos Periféricos Limite: Humans Idioma: En Revista: Acta Biomater Ano de publicação: 2021 Tipo de documento: Article País de publicação: Reino Unido