Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli
Outer membrane vesicles (OMVs) are spherical structures that contain a small fraction of the periplasm of Gram-negative bacteria, surrounded by its outer membrane. They are naturally produced and detached from the bacterial surface, participate in diverse biological processes, and are approximately...
- Autores:
-
Rincón Téllez, Nicolás
- Tipo de recurso:
- Trabajo de grado de pregrado
- Fecha de publicación:
- 2021
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/54425
- Acceso en línea:
- http://hdl.handle.net/1992/54425
- Palabra clave:
- Outer membrane vesicles
Vesículas de membrana externa
Green fluorescent protein
Proteína verde fluorescente
Protein encapsulation
Encapsulación de proteínas
Cell immobilization
Inmovilización celular
Size exclusion chromatography
Cromatografía de exclusión molecular
Ingeniería
Microbiología
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-nd/4.0/
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|
dc.title.none.fl_str_mv |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli |
dc.title.alternative.none.fl_str_mv |
Producción y purificación de vesículas de membrana externa a partir de una cepa hipervesiculante de Escherichia coli |
title |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli |
spellingShingle |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli Outer membrane vesicles Vesículas de membrana externa Green fluorescent protein Proteína verde fluorescente Protein encapsulation Encapsulación de proteínas Cell immobilization Inmovilización celular Size exclusion chromatography Cromatografía de exclusión molecular Ingeniería Microbiología |
title_short |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli |
title_full |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli |
title_fullStr |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli |
title_full_unstemmed |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli |
title_sort |
Production and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli |
dc.creator.fl_str_mv |
Rincón Téllez, Nicolás |
dc.contributor.advisor.none.fl_str_mv |
Reyes Barrios, Luis Humberto Cruz Jiménez, Juan Carlos Bernal Giraldo, Adriana Jimena |
dc.contributor.author.none.fl_str_mv |
Rincón Téllez, Nicolás |
dc.subject.keyword.none.fl_str_mv |
Outer membrane vesicles Vesículas de membrana externa Green fluorescent protein Proteína verde fluorescente Protein encapsulation Encapsulación de proteínas Cell immobilization Inmovilización celular Size exclusion chromatography Cromatografía de exclusión molecular |
topic |
Outer membrane vesicles Vesículas de membrana externa Green fluorescent protein Proteína verde fluorescente Protein encapsulation Encapsulación de proteínas Cell immobilization Inmovilización celular Size exclusion chromatography Cromatografía de exclusión molecular Ingeniería Microbiología |
dc.subject.themes.es_CO.fl_str_mv |
Ingeniería Microbiología |
description |
Outer membrane vesicles (OMVs) are spherical structures that contain a small fraction of the periplasm of Gram-negative bacteria, surrounded by its outer membrane. They are naturally produced and detached from the bacterial surface, participate in diverse biological processes, and are approximately 10-300 nm in diameter. Some genetically modified Gram-negative bacteria¿s ability to produce large amounts of these structures can be exploited for different applications, including biosensors, protein chips, and bioreactors. Traditionally, the main biotechnological application of OMVs has been their use as adjuvants for the development of vaccines due to their natural immunogenic characteristics. Among the most attractive applications is the encapsulation of proteins and peptides heterologously expressed in these bacteria. In this regard, OMVs can protect the expressed proteins, avoiding conformational changes responsible for loss of activity. Nevertheless, among the biggest challenges for all OMV applications are low yields, the presence of undesired macromolecules and the high purifications costs. Hence, the objective of this study was to produce green fluorescent protein (GFP) encapsulated into OMVs using Escherichia coli JC8031 transformed with pTRC99A-ssTorA-GFP, to establish the production and purification route. The obtained results allow establishing the possibility that saturation of the Tat system by the overexpression of GFP causes a low encapsulation efficiency. Moreover, the motility of JC8031 prevents the purification of OMVs by immobilization in alginate, while chromatography with a zeolite column separates OMVs from smaller particles. Therefore, it is necessary to standardize the production and use of the column in order to to apply it on a larger scale. |
publishDate |
2021 |
dc.date.issued.none.fl_str_mv |
2021-12-23 |
dc.date.accessioned.none.fl_str_mv |
2022-01-28T15:45:17Z |
dc.date.available.none.fl_str_mv |
2022-01-28T15:45:17Z |
dc.type.spa.fl_str_mv |
Trabajo de grado - Pregrado |
dc.type.coarversion.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/bachelorThesis |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_7a1f |
dc.type.content.spa.fl_str_mv |
Text |
dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/TP |
format |
http://purl.org/coar/resource_type/c_7a1f |
dc.identifier.uri.none.fl_str_mv |
http://hdl.handle.net/1992/54425 |
dc.identifier.instname.spa.fl_str_mv |
instname:Universidad de los Andes |
dc.identifier.reponame.spa.fl_str_mv |
reponame:Repositorio Institucional Séneca |
dc.identifier.repourl.spa.fl_str_mv |
repourl:https://repositorio.uniandes.edu.co/ |
url |
http://hdl.handle.net/1992/54425 |
identifier_str_mv |
instname:Universidad de los Andes reponame:Repositorio Institucional Séneca repourl:https://repositorio.uniandes.edu.co/ |
dc.language.iso.es_CO.fl_str_mv |
eng |
language |
eng |
dc.rights.uri.*.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
dc.rights.coar.spa.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
dc.format.extent.es_CO.fl_str_mv |
21 páginas |
dc.publisher.es_CO.fl_str_mv |
Universidad de los Andes |
dc.publisher.program.es_CO.fl_str_mv |
Ingeniería Química Microbiología |
dc.publisher.faculty.es_CO.fl_str_mv |
Facultad de Ciencias Facultad de Ingeniería |
dc.publisher.department.es_CO.fl_str_mv |
Departamento de Ciencias Biológicas Departamento de Ingeniería Química y de Alimentos |
institution |
Universidad de los Andes |
bitstream.url.fl_str_mv |
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spelling |
Al consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Reyes Barrios, Luis Humbertovirtual::16571-1Cruz Jiménez, Juan Carlosvirtual::16572-1Bernal Giraldo, Adriana Jimenavirtual::16573-1Rincón Téllez, Nicolás2cddfd06-519b-40a7-a828-9a43f2494eb36002022-01-28T15:45:17Z2022-01-28T15:45:17Z2021-12-23http://hdl.handle.net/1992/54425instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/Outer membrane vesicles (OMVs) are spherical structures that contain a small fraction of the periplasm of Gram-negative bacteria, surrounded by its outer membrane. They are naturally produced and detached from the bacterial surface, participate in diverse biological processes, and are approximately 10-300 nm in diameter. Some genetically modified Gram-negative bacteria¿s ability to produce large amounts of these structures can be exploited for different applications, including biosensors, protein chips, and bioreactors. Traditionally, the main biotechnological application of OMVs has been their use as adjuvants for the development of vaccines due to their natural immunogenic characteristics. Among the most attractive applications is the encapsulation of proteins and peptides heterologously expressed in these bacteria. In this regard, OMVs can protect the expressed proteins, avoiding conformational changes responsible for loss of activity. Nevertheless, among the biggest challenges for all OMV applications are low yields, the presence of undesired macromolecules and the high purifications costs. Hence, the objective of this study was to produce green fluorescent protein (GFP) encapsulated into OMVs using Escherichia coli JC8031 transformed with pTRC99A-ssTorA-GFP, to establish the production and purification route. The obtained results allow establishing the possibility that saturation of the Tat system by the overexpression of GFP causes a low encapsulation efficiency. Moreover, the motility of JC8031 prevents the purification of OMVs by immobilization in alginate, while chromatography with a zeolite column separates OMVs from smaller particles. Therefore, it is necessary to standardize the production and use of the column in order to to apply it on a larger scale.Las vesículas de membrana externa (OMV) son estructuras esféricas que contienen una pequeña fracción del periplasma de bacterias Gram negativas, rodeadas por su membrana externa. Se producen naturalmente y se desprenden de la superficie bacteriana, participan en diversos procesos biológicos y tienen aproximadamente 10-300 nm de diámetro. La capacidad de algunas bacterias gramnegativas modificadas genéticamente para producir grandes cantidades de estas estructuras se puede explotar para diferentes aplicaciones, incluidos biosensores, chips de proteínas y biorreactores. Tradicionalmente, la principal aplicación biotecnológica de las OMV ha sido su uso como adyuvantes para el desarrollo de vacunas debido a sus características inmunogénicas naturales. Entre las aplicaciones más atractivas se encuentra la encapsulación de proteínas y péptidos expresados ¿¿heterólogamente en estas bacterias. En este sentido, las OMV pueden proteger las proteínas expresadas, evitando cambios conformacionales responsables de la pérdida de actividad. Sin embargo, entre los mayores desafíos para todas las aplicaciones de OMV se encuentran los bajos rendimientos, la presencia de macromoléculas no deseadas y los altos costos de purificación. Por tanto, el objetivo de este estudio fue producir proteína verde fluorescente (GFP) encapsulada en OMV utilizando Escherichia coli JC8031 transformada con pTRC99A-ssTorA-GFP, para establecer la ruta de producción y purificación. Los resultados obtenidos permiten establecer la posibilidad de que la saturación del sistema Tat por la sobreexpresión de GFP provoque una baja eficiencia de encapsulación. Además, la motilidad de JC8031 evita la purificación de las OMV mediante la inmovilización en alginato, mientras que la cromatografía con una columna de zeolita separa las OMV de las partículas más pequeñas. Por tanto, es necesario estandarizar la producción y uso de la columna para poder aplicarla a mayor escala.Ingeniero QuímicoMicrobiólogoPregrado21 páginasengUniversidad de los AndesIngeniería QuímicaMicrobiologíaFacultad de CienciasFacultad de IngenieríaDepartamento de Ciencias BiológicasDepartamento de Ingeniería Química y de AlimentosProduction and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coliProducción y purificación de vesículas de membrana externa a partir de una cepa hipervesiculante de Escherichia coliTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesishttp://purl.org/coar/resource_type/c_7a1fhttp://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/TPOuter membrane vesiclesVesículas de membrana externaGreen fluorescent proteinProteína verde fluorescenteProtein encapsulationEncapsulación de proteínasCell immobilizationInmovilización celularSize exclusion chromatographyCromatografía de exclusión molecularIngenieríaMicrobiología201714660Publicationhttps://scholar.google.es/citations?user=2vO8IrIAAAAJvirtual::16571-1https://scholar.google.es/citations?user=vQ9yFZoAAAAJvirtual::16573-10000-0001-7251-5298virtual::16571-10000-0002-3557-697Xvirtual::16573-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001574664virtual::16571-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000622354virtual::16573-17bc6dc94-4e9c-4245-8b42-9f7dbc69de83virtual::16571-110c65e28-e393-4bfe-91e5-f3a7d32e6771virtual::16572-14e93f81c-d517-4226-80b7-2c5d693a24f4virtual::16573-17bc6dc94-4e9c-4245-8b42-9f7dbc69de83virtual::16571-110c65e28-e393-4bfe-91e5-f3a7d32e6771virtual::16572-14e93f81c-d517-4226-80b7-2c5d693a24f4virtual::16573-1TEXTProduction and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli.pdf.txtProduction and purification of outer membrane vesicles (OMVs) from a hypervesiculating strain of Escherichia coli.pdf.txtExtracted texttext/plain58955https://repositorio.uniandes.edu.co/bitstreams/e9c607d5-03fe-4db0-93bd-a46bb20a25ad/download7789e635075bfc9bb63165eee5cdff8aMD57CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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