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| DOI | 10.3390/ANTIOX14050611 | ||||
| Año | 2025 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Lysosomal storage diseases (LSDs) are characterized by the accumulation of undegraded substrates within lysosomes, often associated with oxidative stress and impaired lysosomal function. In this study, we investigate the role of the c-Abl/TFEB pathway in different LSDs: Gaucher, Niemann-Pick type A (NPA), and Niemann-Pick type C (NPC). Our findings identify c-Abl activation (p-c-Abl) as a common pathogenic mechanism in these disorders. We demonstrate that c-Abl phosphorylates TFEB at Tyr173, leading to its cytoplasmic retention. Using pharmacological models of Gaucher, NPA and NPC in SH-SY5Y neuronal cells and HeLa cells, we assess the effects of the c-Abl inhibitors Imatinib and Neurotinib, as well as the antioxidant alpha-Tocopherol (alpha-TOH), on TFEB nuclear translocation and p-c-Abl protein levels. Additionally, we explore the effects of c-Abl inhibitors in cholesterol accumulation in LSDs neuronal models. Our results show that treatment with c-Abl inhibitors or alpha-TOH promotes TFEB nuclear translocation, enhances lysosomal clearance, and reduces cholesterol accumulation in all three LSD models. These findings highlight the c-Abl/TFEB pathway as a potential therapeutic target for LSDs and potentially other neurodegenerative disorders associated with lysosomal dysfunction.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Guerra, Miguel V. | - |
Pontificia Universidad Católica de Chile - Chile
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| 2 | Castro, Juan | - |
Pontificia Universidad Católica de Chile - Chile
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| 3 | Moreno, Antonio | - |
Pontificia Universidad Católica de Chile - Chile
|
| 4 | Balboa, Elisa | - |
Universidad Finis Terrae - Chile
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| 5 | Marugan, Juan | Hombre |
Natl Ctr Adv Translat Sci NCATS - Estados Unidos
National Institutes of Health (NIH) - Estados Unidos |
| 6 | Alvarez, Alejandra R. | - |
Pontificia Universidad Católica de Chile - Chile
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| 7 | ZANLUNGO-MATSUHIRO, SILVANA | Mujer |
Pontificia Universidad Católica de Chile - Chile
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| Fuente |
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| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Fondef Grant |
| FONDECYT Postdoctoral grant |
| National Center for Advancing Translational Sciences |
| Agencia Nacional de Investigación y Desarrollo |
| Agencia Nacional de Investigacion y Desarrollo (ANID): Fondecyt grant |
| NCATS-NIH |
| Agradecimiento |
|---|
| This work was supported by the Agencia Nacional de Investigacion y Desarrollo (ANID): Fondecyt grant [1241503, 12011668 (A.R.A.), 1230337, 1190334 (S.Z.) and 11230689 (E.B.)]; Fondef grant [ID21I10347 and D10E1077 (A.R.A. and S.Z.); and Program ICM-ANID-ICN2021 045 (A.R.A.); and Fondecyt postdoctoral grant 3240189 (M.V.G.), and by the intramural funding of NCATS-NIH (J.J.M.). |
| This work was supported by the Agencia Nacional de Investigaci\u00F3n y Desarrollo (ANID): Fondecyt grant [1241503, 12011668 (A.R.A.), 1230337, 1190334 (S.Z.) and 11230689 (E.B.)]; Fondef grant [ID21I10347 and D10E1077 (A.R.A. and S.Z.); and Program ICM-ANID-ICN2021 045 (A.R.A.); and Fondecyt postdoctoral grant 3240189 (M.V.G.), and by the intramural funding of NCATS-NIH (J.J.M.). |