Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas

ilustraciones, diagramas, gráficas, tablas

Autores:
Riascos Orjuela, Laura Estefanía
Tipo de recurso:
Fecha de publicación:
2023
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/85255
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/85255
https://repositorio.unal.edu.co/
Palabra clave:
570 - Biología::572 - Bioquímica
Anticuerpos Monoclonales
Inmunización
Antibodies, Monoclonal
Immunization
Phage display
librerías de fagos
Spike
SARS-CoV-2
anticuerpos recombinantes
Phage display
phage libraries
Spike
recombinant antibodies
SARS-CoV-2
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
id UNACIONAL2_ffe002e112ba53e381eb119ff3ff2c83
oai_identifier_str oai:repositorio.unal.edu.co:unal/85255
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
dc.title.translated.eng.fl_str_mv Application of the phage display system for the production of monoclonal antibodies: An approach to the development of tools for protein detection
title Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
spellingShingle Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
570 - Biología::572 - Bioquímica
Anticuerpos Monoclonales
Inmunización
Antibodies, Monoclonal
Immunization
Phage display
librerías de fagos
Spike
SARS-CoV-2
anticuerpos recombinantes
Phage display
phage libraries
Spike
recombinant antibodies
SARS-CoV-2
title_short Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
title_full Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
title_fullStr Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
title_full_unstemmed Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
title_sort Aplicación del sistema phage display para la producción de anticuerpos monoclonales: Una aproximación al desarrollo de herramientas para la detección de proteínas
dc.creator.fl_str_mv Riascos Orjuela, Laura Estefanía
dc.contributor.advisor.none.fl_str_mv Ramírez Hernández, María Helena
dc.contributor.author.none.fl_str_mv Riascos Orjuela, Laura Estefanía
dc.contributor.researchgroup.spa.fl_str_mv Laboratorio de Investigaciones Básica en Bioquímica - LIBBIQ
dc.subject.ddc.spa.fl_str_mv 570 - Biología::572 - Bioquímica
topic 570 - Biología::572 - Bioquímica
Anticuerpos Monoclonales
Inmunización
Antibodies, Monoclonal
Immunization
Phage display
librerías de fagos
Spike
SARS-CoV-2
anticuerpos recombinantes
Phage display
phage libraries
Spike
recombinant antibodies
SARS-CoV-2
dc.subject.decs.spa.fl_str_mv Anticuerpos Monoclonales
Inmunización
dc.subject.decs.eng.fl_str_mv Antibodies, Monoclonal
Immunization
dc.subject.proposal.spa.fl_str_mv Phage display
librerías de fagos
Spike
SARS-CoV-2
anticuerpos recombinantes
dc.subject.proposal.eng.fl_str_mv Phage display
phage libraries
Spike
recombinant antibodies
SARS-CoV-2
description ilustraciones, diagramas, gráficas, tablas
publishDate 2023
dc.date.issued.none.fl_str_mv 2023-10-27
dc.date.accessioned.none.fl_str_mv 2024-01-12T19:44:48Z
dc.date.available.none.fl_str_mv 2024-01-12T19:44:48Z
dc.type.spa.fl_str_mv Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv Text
dc.type.redcol.spa.fl_str_mv http://purl.org/redcol/resource_type/TM
status_str acceptedVersion
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/85255
dc.identifier.instname.spa.fl_str_mv Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv https://repositorio.unal.edu.co/
url https://repositorio.unal.edu.co/handle/unal/85255
https://repositorio.unal.edu.co/
identifier_str_mv Universidad Nacional de Colombia
Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv spa
language spa
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados al autor, 2023http://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Ramírez Hernández, María Helena3cd22161e24a39009214e3120ed6f39bRiascos Orjuela, Laura Estefaníaa3ea0703489648ac0a8a7739285f45d6Laboratorio de Investigaciones Básica en Bioquímica - LIBBIQ2024-01-12T19:44:48Z2024-01-12T19:44:48Z2023-10-27https://repositorio.unal.edu.co/handle/unal/85255Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, diagramas, gráficas, tablasLa tecnología phage display se ha constituido como una alternativa para la producción de anticuerpos recombinantes monoclonales (rmAbs) de alta calidad. En este trabajo, empleando el modelo aviar, se realizó una primera aproximación a la producción local de herramientas de importancia para la investigación científica en Colombia como los rmAbs desde IgYs para la detección de proteínas clínicamente importantes. En este caso, se utilizaron como antígenos los dominios N-terminal (NTD) y el dominio de unión al receptor (RBD) de la proteína Spike (S) de SARS-CoV-2. Estos dominios se expresaron en el sistema heterólogo de E. coli y se purificaron a partir de cuerpos de inclusión. Las proteínas recombinantes obtenidas (6xHis-SUMO-NTD y 6xHis-SUMO-RBD) fueron inoculadas en gallinas Hy-Line Brown siguiendo un esquema de inmunización previamente estandarizado. Durante el proceso de inmunización, se recolectaron huevos y sangrías con el objetivo de evaluar los anticuerpos policlonales (pAbs) allí presentes. Esto, permitió establecer que los IgYs de los últimos sueros de cada animal permitieron la detección de hasta 15,6ng de 6xHis-SUMO-NTD y 7,8ng de 6xHis-SUMO-RBD respectivamente. Los ensayos de especificidad evidenciaron el reconocimiento cruzado de otras proteínas recombinantes que cuentan con las etiquetas 6xHis o 6xHis-SUMO, indicando que en el proceso de inmunización se generaron anticuerpos contra dichas etiquetas. Con base en esto, se estableció que los dominios NTD y RBD expresados pueden funcionar como proteínas transportadoras o carrier de las etiquetas que se desempeñarían como haptenos. Por otro lado, una vez se finalizó el esquema de inmunización, se sacrificaron los animales para obtener los bazos a fin de extraer ARN. Luego, se sintetizó ADN complementario (ADNc) desde el cuál se amplificaron las regiones encargadas de codificar las cadenas variables ligeras (VL) y pesadas (VH) de las IgYs. Estas regiones fueron clonadas en el fásmido pSEX81 que cuenta con la secuencia codificante de una proteína de cobertura (pIII) del bacteriófago M13 a la cual se acoplan VL y VH. De esta forma, se construyeron librerías de un tamaño de 6,25x106 cfu para NTD y de 3,75x106 cfu para RBD. Células E. coli TG1 fueron transformadas por electroporación con los constructos obtenidos (pSEX81-ScFv) para el antígeno 6xHis-SUMO-RBD e infectadas con el hiperfago M13K07ΔPIII. Finalmente, después de llevar a cabo las rondas de biopanning, se obtuvo la librería a partir de la cual se han aislado clones específicos que reconocen a 6xHis-SUMO-RBD que podrán ser caracterizados y empleados en la producción de los rmAbs. (Texto tomado de la fuente)Phage display technology has become an alternative to produce high-quality recombinant monoclonal antibodies (rmAbs). In this work, using the avian model, we made a first approach to the local production of important tools for scientific research in Colombia such as rmAbs from IgYs for the detection of clinically important proteins. In this case, the N-terminal domains (NTD) and receptor-binding domain (RBD) of the SARS-CoV-2 Spike (S) protein were used as antigens. These domains were expressed in the E. coli heterologous system and purified from inclusion bodies. The recombinant proteins obtained (6xHis-SUMO-NTD and 6xHis-SUMO-RBD) were inoculated into Hy-Line Brown hens following a previously standardized immunization scheme. During the immunization process, eggs and sera were collected in order to evaluate the polyclonal antibodies (pAbs) present there. This allowed us to establish that the IgYs from the last collected sera of each animal allowed the detection of up to 15.6ng of 6xHis-SUMO-NTD and 7.8ng of 6xHis-SUMO-RBD respectively. The specificity assays evidenced the cross recognition of other recombinant proteins that have the 6xHis or 6xHis-SUMO tags, indicating that antibodies against these tags were generated in the immunization process. Based on this, it was established that the expressed NTD and RBD domains can function as transporter proteins or carriers of the tags that would act as haptens. On the other hand, once the immunization scheme was completed, the animals were sacrificed to obtain the spleens in order to extract RNA. Then, complementary DNA (cDNA) was synthesized from which the coding regions for the variable light (VL) and heavy (VH) chains of the IgYs were amplified. These regions were cloned in the phasmid pSEX81 that has the coding sequence for a coat protein (pIII) of the M13 bacteriophage to which VL and VH are coupled. In this way, libraries with a size of 6.25x106 cfu for NTD and 3.75x106 cfu for RBD were built. E. coli TG1 cells were transformed by electroporation with the constructs obtained (pSEX81-ScFv) for the 6xHis-SUMO-RBD antigen and infected with the M13K07ΔPIII hyperphage. 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Available from: http://dx.doi.org/10.1016/j.bbrc.2010.04.040EstudiantesInvestigadoresMaestrosLICENSElicense.txtlicense.txttext/plain; charset=utf-85879https://repositorio.unal.edu.co/bitstream/unal/85255/1/license.txteb34b1cf90b7e1103fc9dfd26be24b4aMD51ORIGINAL1026291353.2023.pdf1026291353.2023.pdfTesis de Maestría en Ciencias - Bioquímicaapplication/pdf4309578https://repositorio.unal.edu.co/bitstream/unal/85255/2/1026291353.2023.pdffb21d71bc06f776696b4ba07746d27a3MD52unal/85255oai:repositorio.unal.edu.co:unal/852552024-01-12 14:48:50.974Repositorio Institucional Universidad Nacional de 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