In vitro long-term development of cultured inner ear stem cells of newborn rat
The adult mammalian auditory receptor lacks any ability to repair and/or regenerate after injury. However, the late developing cochlea still contains some stem-cell-like elements that might be used to regenerate damaged neurons and/or cells of the organ of Corti. Before their use in any application,...
| Authors: | ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2010 |
| Country: | España |
| Institution: | Universidad Complutense de Madrid (UCM) |
| Repository: | Docta Complutense |
| Language: | English |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/93741 |
| Online Access: | https://hdl.handle.net/20.500.14352/93741 |
| Access Level: | Open access |
| Keyword: | 616.21 612.017 Inner ear stem cells Deafness Cell culture Spontaneous differentiation Rat (Wistar) Biología celular (Biología) Otorrinolaringología 2407.01 Cultivo Celular 2407.05 Cultivo de Tejidos 2411.13 Fisiología de la Audición 3213.05 Cirugía de Garganta, Nariz y Oídos |
| _version_ | 1878732217804390400 |
|---|---|
| author | Carricondo Orejana, Francisco Javier |
| author2 | Iglesias Moreno, María Cruz Rodríguez Gómez, Fernando Luis Poch Broto, Joaquín Gil Loyzaga, Pablo |
| author2_role | author author author author |
| author_browse | Carricondo Orejana, Francisco Javier Gil Loyzaga, Pablo Iglesias Moreno, María Cruz Poch Broto, Joaquín Rodríguez Gómez, Fernando Luis |
| author_facet | Carricondo Orejana, Francisco Javier Iglesias Moreno, María Cruz Rodríguez Gómez, Fernando Luis Poch Broto, Joaquín Gil Loyzaga, Pablo |
| author_role | author |
| collection | Docta Complutense |
| description | The adult mammalian auditory receptor lacks any ability to repair and/or regenerate after injury. However, the late developing cochlea still contains some stem-cell-like elements that might be used to regenerate damaged neurons and/or cells of the organ of Corti. Before their use in any application, stem cell numbers need to be amplified because they are usually rare in late developing and adult tissues. The numerous re-explant cultures required for the progressive amplification process can result in a spontaneous differentiation process. This aspect has been implicated in the tumorigenicity of stem cells when transplanted into a tissue. The aim of this study has been to determine whether cochlear stem cells can proliferate and differentiate spontaneously in long-term cultures without the addition of any factor that might influence these processes. Cochlear stem cells, which express nestin protein, were cultured in monolayers and fed with DMEM containing 5% FBS. They quickly organized themselves into typical spheres exhibiting a high proliferation rate, self-renewal property, and differentiation ability. Secondary cultures of these stem cell spheres spontaneously differentiated into neuroectodermal-like cells. The expression of nestin, glial-fibrillary-acidic protein, vimentin, and neurofilaments was evaluated to identify early differentiation. Nestin expression appeared in primary and secondary cultures. Other markers were also identified in differentiating cells. Further research might demonstrate the spontaneous differentiation of cochlear stem cells and their teratogenic probability when they are used for transplantation. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_3ebfca5ebfc6e2e44fa03f24bf817a6a |
| institution | Universidad Complutense de Madrid (UCM) |
| instname_str | Universidad Complutense de Madrid (UCM) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:docta.ucm.es:20.500.14352/93741 |
| publishDate | 2010 |
| publishDateSort | 2010 |
| publisher | Springer |
| publisherStr | Springer |
| reponame_str | Docta Complutense |
| spelling | In vitro long-term development of cultured inner ear stem cells of newborn rat Carricondo Orejana, Francisco Javier Iglesias Moreno, María Cruz Rodríguez Gómez, Fernando Luis Poch Broto, Joaquín Gil Loyzaga, Pablo 616.21 612.017 Inner ear stem cells Deafness Cell culture Spontaneous differentiation Rat (Wistar) Biología celular (Biología) Otorrinolaringología 2407.01 Cultivo Celular 2407.05 Cultivo de Tejidos 2411.13 Fisiología de la Audición 3213.05 Cirugía de Garganta, Nariz y Oídos The adult mammalian auditory receptor lacks any ability to repair and/or regenerate after injury. However, the late developing cochlea still contains some stem-cell-like elements that might be used to regenerate damaged neurons and/or cells of the organ of Corti. Before their use in any application, stem cell numbers need to be amplified because they are usually rare in late developing and adult tissues. The numerous re-explant cultures required for the progressive amplification process can result in a spontaneous differentiation process. This aspect has been implicated in the tumorigenicity of stem cells when transplanted into a tissue. The aim of this study has been to determine whether cochlear stem cells can proliferate and differentiate spontaneously in long-term cultures without the addition of any factor that might influence these processes. Cochlear stem cells, which express nestin protein, were cultured in monolayers and fed with DMEM containing 5% FBS. They quickly organized themselves into typical spheres exhibiting a high proliferation rate, self-renewal property, and differentiation ability. Secondary cultures of these stem cell spheres spontaneously differentiated into neuroectodermal-like cells. The expression of nestin, glial-fibrillary-acidic protein, vimentin, and neurofilaments was evaluated to identify early differentiation. Nestin expression appeared in primary and secondary cultures. Other markers were also identified in differentiating cells. Further research might demonstrate the spontaneous differentiation of cochlear stem cells and their teratogenic probability when they are used for transplantation. Springer https://hdl.handle.net/20.500.14352/93741 |
| spellingShingle | In vitro long-term development of cultured inner ear stem cells of newborn rat Carricondo Orejana, Francisco Javier 616.21 612.017 Inner ear stem cells Deafness Cell culture Spontaneous differentiation Rat (Wistar) Biología celular (Biología) Otorrinolaringología 2407.01 Cultivo Celular 2407.05 Cultivo de Tejidos 2411.13 Fisiología de la Audición 3213.05 Cirugía de Garganta, Nariz y Oídos |
| title | In vitro long-term development of cultured inner ear stem cells of newborn rat |
| title_full | In vitro long-term development of cultured inner ear stem cells of newborn rat |
| title_fullStr | In vitro long-term development of cultured inner ear stem cells of newborn rat |
| title_full_unstemmed | In vitro long-term development of cultured inner ear stem cells of newborn rat |
| title_short | In vitro long-term development of cultured inner ear stem cells of newborn rat |
| title_sort | In vitro long-term development of cultured inner ear stem cells of newborn rat |
| topic | 616.21 612.017 Inner ear stem cells Deafness Cell culture Spontaneous differentiation Rat (Wistar) Biología celular (Biología) Otorrinolaringología 2407.01 Cultivo Celular 2407.05 Cultivo de Tejidos 2411.13 Fisiología de la Audición 3213.05 Cirugía de Garganta, Nariz y Oídos |
| topic_facet | 616.21 612.017 Inner ear stem cells Deafness Cell culture Spontaneous differentiation Rat (Wistar) Biología celular (Biología) Otorrinolaringología 2407.01 Cultivo Celular 2407.05 Cultivo de Tejidos 2411.13 Fisiología de la Audición 3213.05 Cirugía de Garganta, Nariz y Oídos |
| url | https://hdl.handle.net/20.500.14352/93741 |