Estudio de la expresión de SIRT2 y su implicación en el modelo de esclerosis lateral amiotrófica NSC-34 (hSOD1G93A)
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2025
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30/10/2024
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Universidad Complutense de Madrid
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Abstract
La esclerosis lateral amiotrófica es una enfermedad neurodegenerativa caracterizada por la pérdida selectiva de motoneuronas superiores e inferiores, lo que provoca la muerte de los pacientes en un corto periodo de tiempo. Aproximadamente el 10 % de los casos son de tipo familiar, entre los cuales, el 20 % se deben a mutaciones en el gen SOD1. A nivel celular, existen dos eventos claves que caracterizan su fisiopatología: la disfunción mitocondrial y el incremento de la producción de especies reactivas de oxígeno (ERO).En la mayoría de los casos, la enfermedad suele aparecer en torno a la quinta o sexta década de vida. En este contexto, varios estudios han constatado un aumento de la proteína desacetilasa sirtuina 2 (SIRT2) en cerebro de humanos, así como en diferentes modelos animales, sugiriendo un papel central de esta enzima en el envejecimiento, la longevidad y en la modulación de patologías relacionadas con la edad...
Amyotrophic lateral sclerosis is a neurodegenerative disease characterised by the selective loss of upper motor neurons to lower motor neurons, resulting in the death ofpatients within a short period of time. Approximately 10% of cases are familial, of which20% are due to mutations in the SOD1 gene. At the cellular level, two key events characterise its pathophysiology: mitochondrial dysfunction and increased production ofreactive oxygen species (ROS).In most cases, the disease usually appears around the fifth or sixth decade of life.In this context, several studies have identified an increase in the protein deacetylase SIRT2 in human brains and in different animal models. This suggests that this enzymeplays a central role in ageing, longevity and in the modulation of age-related pathologies...
Amyotrophic lateral sclerosis is a neurodegenerative disease characterised by the selective loss of upper motor neurons to lower motor neurons, resulting in the death ofpatients within a short period of time. Approximately 10% of cases are familial, of which20% are due to mutations in the SOD1 gene. At the cellular level, two key events characterise its pathophysiology: mitochondrial dysfunction and increased production ofreactive oxygen species (ROS).In most cases, the disease usually appears around the fifth or sixth decade of life.In this context, several studies have identified an increase in the protein deacetylase SIRT2 in human brains and in different animal models. This suggests that this enzymeplays a central role in ageing, longevity and in the modulation of age-related pathologies...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Biológicas, leída el 30/10/2024