Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells
The use of human induced pluripotent stem cell-derived neural progenitor cells (hiPSC-NPCs) is an attractive therapeutic option for damaged nerve tissues. To direct neuronal differentiation of stem cells, we have previously developed an electrospun polycaprolactone nanofiber scaffold that was functi...
| Autores principales: | , , , , , |
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| Otros Autores: | |
| Formato: | Journal Article |
| Lenguaje: | English |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10356/80401 http://hdl.handle.net/10220/46516 |
| _version_ | 1826110613398487040 |
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| author | Chooi, Wai Hon Ong, William Murray, Aoife Lin, Junquan Nizetic, Dean Chew, Sing Yian |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Chooi, Wai Hon Ong, William Murray, Aoife Lin, Junquan Nizetic, Dean Chew, Sing Yian |
| author_sort | Chooi, Wai Hon |
| collection | NTU |
| description | The use of human induced pluripotent stem cell-derived neural progenitor cells (hiPSC-NPCs) is an attractive therapeutic option for damaged nerve tissues. To direct neuronal differentiation of stem cells, we have previously developed an electrospun polycaprolactone nanofiber scaffold that was functionalized with siRNA targeting Re-1 silencing transcription factor (REST), by mussel-inspired bioadhesive coating. However, the efficacy of nanofiber-mediated RNA interference on hiPSC-NPCs differentiation remains unknown. Furthermore, interaction between such cell-seeded scaffolds with injured tissues has not been tested. In this study, scaffolds were optimized for REST knockdown in hiPSC-NPCs to enhance neuronal differentiation. Specifically, the effects of two different mussel-inspired bioadhesives and transfection reagents were analyzed. Scaffolds functionalized with RNAiMAX Lipofectamine-siREST complexes enhanced the differentiation of hiPSC-NPCs into TUJ1+ cells (60% as compared to 22% in controls with scrambled siNEG after 9 days) without inducing high cytotoxicity. When cell-seeded scaffolds were transplanted to transected spinal cord organotypic slices, similar efficiency in neuronal differentiation was observed. The scaffolds also supported the migration of cells and neurite outgrowth from the spinal cord slices. Taken together, the results suggest that this scaffold can be effective in enhancing hiPSC-NPC neuronal commitment by gene-silencing for the treatment of injured spinal cords. |
| first_indexed | 2024-10-01T02:37:21Z |
| format | Journal Article |
| id | ntu-10356/80401 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:37:21Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/804012020-11-01T05:11:06Z Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells Chooi, Wai Hon Ong, William Murray, Aoife Lin, Junquan Nizetic, Dean Chew, Sing Yian School of Chemical and Biomedical Engineering Lee Kong Chian School of Medicine (LKCMedicine) DRNTU::Engineering::Bioengineering DRNTU::Science::Medicine::Biomedical engineering The use of human induced pluripotent stem cell-derived neural progenitor cells (hiPSC-NPCs) is an attractive therapeutic option for damaged nerve tissues. To direct neuronal differentiation of stem cells, we have previously developed an electrospun polycaprolactone nanofiber scaffold that was functionalized with siRNA targeting Re-1 silencing transcription factor (REST), by mussel-inspired bioadhesive coating. However, the efficacy of nanofiber-mediated RNA interference on hiPSC-NPCs differentiation remains unknown. Furthermore, interaction between such cell-seeded scaffolds with injured tissues has not been tested. In this study, scaffolds were optimized for REST knockdown in hiPSC-NPCs to enhance neuronal differentiation. Specifically, the effects of two different mussel-inspired bioadhesives and transfection reagents were analyzed. Scaffolds functionalized with RNAiMAX Lipofectamine-siREST complexes enhanced the differentiation of hiPSC-NPCs into TUJ1+ cells (60% as compared to 22% in controls with scrambled siNEG after 9 days) without inducing high cytotoxicity. When cell-seeded scaffolds were transplanted to transected spinal cord organotypic slices, similar efficiency in neuronal differentiation was observed. The scaffolds also supported the migration of cells and neurite outgrowth from the spinal cord slices. Taken together, the results suggest that this scaffold can be effective in enhancing hiPSC-NPC neuronal commitment by gene-silencing for the treatment of injured spinal cords. ASTAR (Agency for Sci., Tech. and Research, S’pore) MOE (Min. of Education, S’pore) NMRC (Natl Medical Research Council, S’pore) Accepted version 2018-11-01T06:01:41Z 2019-12-06T13:48:38Z 2018-11-01T06:01:41Z 2019-12-06T13:48:38Z 2018 Journal Article Chooi, W. H., Ong, W., Murray, A., Lin, J., Nizetic, D., & Chew, S. Y. (2018). Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells. Biomaterials Science, 6(11), 3019-3029. doi:10.1039/c8bm01034j 2047-4830 https://hdl.handle.net/10356/80401 http://hdl.handle.net/10220/46516 10.1039/C8BM01034J en Biomaterials Science © 2018 Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Biomaterials Science, Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1039/c8bm01034j]. 15 p. application/pdf application/pdf |
| spellingShingle | DRNTU::Engineering::Bioengineering DRNTU::Science::Medicine::Biomedical engineering Chooi, Wai Hon Ong, William Murray, Aoife Lin, Junquan Nizetic, Dean Chew, Sing Yian Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells |
| title | Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells |
| title_full | Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells |
| title_fullStr | Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells |
| title_full_unstemmed | Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells |
| title_short | Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells |
| title_sort | scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells |
| topic | DRNTU::Engineering::Bioengineering DRNTU::Science::Medicine::Biomedical engineering |
| url | https://hdl.handle.net/10356/80401 http://hdl.handle.net/10220/46516 |
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