Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig model
Post-traumatic spinal cord remodeling includes both degenerating and regenerating processes, which affect the potency of the functional recovery after spinal cord injury (SCI). Gene therapy for spinal cord injury is proposed as a promising therapeutic strategy to induce positive changes in remodelin...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2023-01-01
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| Series: | Neural Regeneration Research |
| Subjects: | |
| Online Access: | http://www.nrronline.org/article.asp?issn=1673-5374;year=2023;volume=18;issue=7;spage=1505;epage=1511;aulast=Davleeva |
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| author | Maria Aleksandrovna Davleeva Ravil Rasimovich Garifulin Farid Vagizovich Bashirov Andrei Aleksandrovich Izmailov Leniz Faritovich Nurullin Ilnur Ildusovich Salafutdinov Dilara Zilbarovna Gatina Dmitrij Nikolaevich Shcherbinin Andrei Aleksandrovich Lysenko Irina Leonidovna Tutykhina Maksim Mikhailovich Shmarov Rustem Robertovich Islamov |
| author_facet | Maria Aleksandrovna Davleeva Ravil Rasimovich Garifulin Farid Vagizovich Bashirov Andrei Aleksandrovich Izmailov Leniz Faritovich Nurullin Ilnur Ildusovich Salafutdinov Dilara Zilbarovna Gatina Dmitrij Nikolaevich Shcherbinin Andrei Aleksandrovich Lysenko Irina Leonidovna Tutykhina Maksim Mikhailovich Shmarov Rustem Robertovich Islamov |
| author_sort | Maria Aleksandrovna Davleeva |
| collection | DOAJ |
| description | Post-traumatic spinal cord remodeling includes both degenerating and regenerating processes, which affect the potency of the functional recovery after spinal cord injury (SCI). Gene therapy for spinal cord injury is proposed as a promising therapeutic strategy to induce positive changes in remodeling of the affected neural tissue. In our previous studies for delivering the therapeutic genes at the site of spinal cord injury, we developed a new approach using an autologous leucoconcentrate transduced ex vivo with chimeric adenoviruses (Ad5/35) carrying recombinant cDNA. In the present study, the efficacy of the intravenous infusion of an autologous genetically-enriched leucoconcentrate simultaneously producing recombinant vascular endothelial growth factor (VEGF), glial cell line-derived neurotrophic factor (GDNF), and neural cell adhesion molecule (NCAM) was evaluated with regard to the molecular and cellular changes in remodeling of the spinal cord tissue at the site of damage in a model of mini-pigs with moderate spinal cord injury. Experimental animals were randomly divided into two groups of 4 pigs each: the therapeutic (infused with the leucoconcentrate simultaneously transduced with a combination of the three chimeric adenoviral vectors Ad5/35‐VEGF165, Ad5/35‐GDNF, and Ad5/35‐NCAM1) and control groups (infused with intact leucoconcentrate). The morphometric and immunofluorescence analysis of the spinal cord regeneration in the rostral and caudal segments according to the epicenter of the injury in the treated animals compared to the control mini-pigs showed: (1) higher sparing of the grey matter and increased survivability of the spinal cord cells (lower number of Caspase-3-positive cells and decreased expression of Hsp27); (2) recovery of synaptophysin expression; (3) prevention of astrogliosis (lower area of glial fibrillary acidic protein-positive astrocytes and ionized calcium binding adaptor molecule 1-positive microglial cells); (4) higher growth rates of regenerating βIII-tubulin-positive axons accompanied by a higher number of oligodendrocyte transcription factor 2-positive oligodendroglial cells in the lateral corticospinal tract region. These results revealed the efficacy of intravenous infusion of the autologous genetically-enriched leucoconcentrate producing recombinant VEGF, GDNF, and NCAM in the acute phase of spinal cord injury on the positive changes in the post-traumatic remodeling nervous tissue at the site of direct injury. Our data provide a solid platform for a new ex vivo gene therapy for spinal cord injury and will facilitate further translation of regenerative therapies in clinical neurology. |
| first_indexed | 2024-04-10T23:22:38Z |
| format | Article |
| id | doaj.art-01daf75aacbd4da89e5f9077f6746366 |
| institution | Directory Open Access Journal |
| issn | 1673-5374 |
| language | English |
| last_indexed | 2024-04-10T23:22:38Z |
| publishDate | 2023-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Neural Regeneration Research |
| spelling | doaj.art-01daf75aacbd4da89e5f9077f67463662023-01-12T13:29:30ZengWolters Kluwer Medknow PublicationsNeural Regeneration Research1673-53742023-01-011871505151110.4103/1673-5374.360241Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig modelMaria Aleksandrovna DavleevaRavil Rasimovich GarifulinFarid Vagizovich BashirovAndrei Aleksandrovich IzmailovLeniz Faritovich NurullinIlnur Ildusovich SalafutdinovDilara Zilbarovna GatinaDmitrij Nikolaevich ShcherbininAndrei Aleksandrovich LysenkoIrina Leonidovna TutykhinaMaksim Mikhailovich ShmarovRustem Robertovich IslamovPost-traumatic spinal cord remodeling includes both degenerating and regenerating processes, which affect the potency of the functional recovery after spinal cord injury (SCI). Gene therapy for spinal cord injury is proposed as a promising therapeutic strategy to induce positive changes in remodeling of the affected neural tissue. In our previous studies for delivering the therapeutic genes at the site of spinal cord injury, we developed a new approach using an autologous leucoconcentrate transduced ex vivo with chimeric adenoviruses (Ad5/35) carrying recombinant cDNA. In the present study, the efficacy of the intravenous infusion of an autologous genetically-enriched leucoconcentrate simultaneously producing recombinant vascular endothelial growth factor (VEGF), glial cell line-derived neurotrophic factor (GDNF), and neural cell adhesion molecule (NCAM) was evaluated with regard to the molecular and cellular changes in remodeling of the spinal cord tissue at the site of damage in a model of mini-pigs with moderate spinal cord injury. Experimental animals were randomly divided into two groups of 4 pigs each: the therapeutic (infused with the leucoconcentrate simultaneously transduced with a combination of the three chimeric adenoviral vectors Ad5/35‐VEGF165, Ad5/35‐GDNF, and Ad5/35‐NCAM1) and control groups (infused with intact leucoconcentrate). The morphometric and immunofluorescence analysis of the spinal cord regeneration in the rostral and caudal segments according to the epicenter of the injury in the treated animals compared to the control mini-pigs showed: (1) higher sparing of the grey matter and increased survivability of the spinal cord cells (lower number of Caspase-3-positive cells and decreased expression of Hsp27); (2) recovery of synaptophysin expression; (3) prevention of astrogliosis (lower area of glial fibrillary acidic protein-positive astrocytes and ionized calcium binding adaptor molecule 1-positive microglial cells); (4) higher growth rates of regenerating βIII-tubulin-positive axons accompanied by a higher number of oligodendrocyte transcription factor 2-positive oligodendroglial cells in the lateral corticospinal tract region. These results revealed the efficacy of intravenous infusion of the autologous genetically-enriched leucoconcentrate producing recombinant VEGF, GDNF, and NCAM in the acute phase of spinal cord injury on the positive changes in the post-traumatic remodeling nervous tissue at the site of direct injury. Our data provide a solid platform for a new ex vivo gene therapy for spinal cord injury and will facilitate further translation of regenerative therapies in clinical neurology.http://www.nrronline.org/article.asp?issn=1673-5374;year=2023;volume=18;issue=7;spage=1505;epage=1511;aulast=Davleevaautologous genetically-enriched leucoconcentrate; chimeric adenoviral vector; gene therapy; glial cell line‐derived neurotrophic factor; mini-pig; neural cell adhesion molecule; spinal cord contusion injury; vascular endothelial growth factor |
| spellingShingle | Maria Aleksandrovna Davleeva Ravil Rasimovich Garifulin Farid Vagizovich Bashirov Andrei Aleksandrovich Izmailov Leniz Faritovich Nurullin Ilnur Ildusovich Salafutdinov Dilara Zilbarovna Gatina Dmitrij Nikolaevich Shcherbinin Andrei Aleksandrovich Lysenko Irina Leonidovna Tutykhina Maksim Mikhailovich Shmarov Rustem Robertovich Islamov Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig model Neural Regeneration Research autologous genetically-enriched leucoconcentrate; chimeric adenoviral vector; gene therapy; glial cell line‐derived neurotrophic factor; mini-pig; neural cell adhesion molecule; spinal cord contusion injury; vascular endothelial growth factor |
| title | Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig model |
| title_full | Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig model |
| title_fullStr | Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig model |
| title_full_unstemmed | Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig model |
| title_short | Molecular and cellular changes in the post-traumatic spinal cord remodeling after autoinfusion of a genetically-enriched leucoconcentrate in a mini-pig model |
| title_sort | molecular and cellular changes in the post traumatic spinal cord remodeling after autoinfusion of a genetically enriched leucoconcentrate in a mini pig model |
| topic | autologous genetically-enriched leucoconcentrate; chimeric adenoviral vector; gene therapy; glial cell line‐derived neurotrophic factor; mini-pig; neural cell adhesion molecule; spinal cord contusion injury; vascular endothelial growth factor |
| url | http://www.nrronline.org/article.asp?issn=1673-5374;year=2023;volume=18;issue=7;spage=1505;epage=1511;aulast=Davleeva |
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