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dc.contributor.advisorSánchez Mora, Ruth Mélida
dc.contributor.advisorRodríguez Panduro, Mauricio Humberto
dc.contributor.advisorSalazar Buitrago, Nelson Arturo
dc.contributor.authorNeira Mora, Daniel Gustavo
dc.date.accessioned2021-05-20T13:36:46Z
dc.date.available2021-05-20T13:36:46Z
dc.date.issued2020-06-02
dc.identifier.urihttps://repositorio.unicolmayor.edu.co/handle/unicolmayor/68
dc.description.abstractLa enfermedad de Alzheimer (EA) es la demencia más común, caracterizada por la disminución gradual y progresiva de la memoria y la cognición, una raíz de distintos mecanismos, siendo la formación de proteína β-amiloide (Aβ) el proceso más conocido. En Colombia no existen datos epidemiológicos actualizados, por lo que resulta imposible acceder a un dato preciso de esta enfermedad. Tras 25 años no se ha obtenido un tratamiento eficaz y dilucidar los mecanismos de la enfermedad, ha sido una tarea difícil dada la complejidad del cerebro humano, por esta razón, el modelado de la EA en animales con estructuras nerviosas conocidas ofrece grandes avances. Caenorhabditis elegans (C. elegans) es un nematodo de vida libre ampliamente utilizado como modelo neurobiológico, dado que su genoma contiene un 60% de similitud con el genoma humano. CRISPR/Cas9 ha sido la herramienta de edición genética más revolucionaria desde su descubrimiento en Arqueas. El sistema CRISPR tipo II (Cas9) es por mucho, la tecnología mejor desarrollada para editar cualquier gen, esto lo convierte en una alternativa con potencial terapéutico en EA. Conociendo las hipótesis de la cascada amiloide, Presenilinas y enfoque de matriz APP como principales hipótesis de EA, es posible determinar el papel en la progresión de EA que tiene genes como APP, PSEN, ApoE, SORL1, ABCA7 entre otros. Esto permite modelar Aβ, APP y Tau en cepas de C. elegans, para identificar estrategias terapéuticas de CRISPR/Cas9; Ya sea en el aclaramiento de Aβ o corrigiendo mutaciones ya conocidas implicadas en EA.spa
dc.description.abstractAlzheimer's disease (AD) is the most common dementia, characterized by the gradual and progressive decrease in memory and cognition, a root of the loss of neurons due to the action of different mechanisms, the formation of β-amyloid protein (Aβ) being the mechanism better known. In Colombia there are no updated epidemiological data, making it impossible to access accurate data on this disease. After 25 years, an effective treatment has not been obtained and elucidating the mechanisms of the disease, it has been a difficult task, due to the complexity of the human brain, for this reason, the modeling of AD in animals with known nerve structures offers great advances. Caenorhabditis elegans (C. elegans) is a nematode widely used as a neurobiological model, since its genome contains 60% similarity to the human genome. CRISPR / Cas9 has been the most revolutionary genetic editing tool since its discovery in Arqueas. The CRISPR type II system (Cas9) is by far the best developed technology to edit any gene, this makes it an alternative with therapeutic potential in AD. Knowing the hypotheses of the amyloid cascade, Presenilins and APP matrix approach as the main hypotheses of EA, it is possible to determine the role in the progression of EA that has genes such as APP, PSEN, ApoE, SORL1, ABCA7 among others. This allows to model Aβ, APP and Tau in strains of C. elegans, to identify therapeutic strategies of CRISPR / Cas9; Either in Aβ clearance or by correcting known mutations involved in EA.eng
dc.description.tableofcontents1. INTRODUCCIÓN 13 2. ANTECEDENTES 15 3. MARCO TEÓRICO 18 3.1 Caenorhabditis elegans 18 3.1.1 Ciclo de vida y desarrollo 19 3.1.2 Utilidad de C. elegans en investigación 21 3.2 Demencias y Enfermedad de Alzheimer 23 3.2.1 Etiología de las demencias 23 3.2.2 Clasificación de las demencias 24 3.3 Enfermedad de Alzheimer 25 3.3.1 Fisiopatología de la EA 27 3.3.2 Fase bioquímica de la EA 28 3.3.3 Fase celular de EA 35 3.4 Edición genética 38 5.1 CRISPR/Cas9 44 5.1.1 Estructura del Operón Cas y la matriz CRISPR 46 5.1.2 CRISPR TIPO II (Cas9) 47 5.2 Potencial de CRISPR/Cas9 en tratamiento de EA. 48 5.3 Hipótesis de EA 50 5.3.1 Hipótesis de la cascada amiloide 50 5.3.2 Hipótesis de la presenilina 51 5.3.3 Enfoque de la matriz APP 51 5.4 Genes implicados en la EA 52 5.5 Modelado de la EA en C. elegans y genes implicados 54 5.5.1 Modelado de Aβ en musculo 55 5.5.2 Modelado de Tau 56 5.6 Terapéutica usando CRISPR/CAS9 en EA Y C. elegans 60 5.6.1 Aclaramiento de proteínas responsables de EA en C. elegans 60 5.6.2 Corrección de mutaciones responsables de EA en C. elegans 62 6. DISCUSIÓN 64 7. CONCLUSIONES 68 8. BIBLIOGRAFÍA 69spa
dc.format.extent106p.spa
dc.format.mimetypeapplication/pdfspa
dc.language.isospaspa
dc.publisherUniversidad Colegio Mayor de Cundinamarcaspa
dc.rightsDerechos Reservados - Universidad Colegio Mayor de Cundinamarca, 2020spa
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/spa
dc.titleImplementación de tecnología Crispr/Cas9 aplicada en Caenorhabditis Elegans como Posible opción terapéutica para la enfermedad de Alzheimer revisión documentalspa
dc.typeTrabajo de grado - Pregradospa
dc.description.degreelevelPregradospa
dc.description.degreenameBacteriólogo(a) y Laboratorista Clínicospa
dc.publisher.facultyFacultad de Ciencias de la Saludspa
dc.publisher.placeBogotá D.Cspa
dc.publisher.programBacteriología y Laboratorio Clínicospa
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dc.rights.creativecommonsAtribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0)spa
dc.subject.lembCaenorhabditis Elegans
dc.subject.lembAlzheimer
dc.subject.lemb
dc.subject.lembTau
dc.subject.lembCrispr/Cas9
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