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García-Aguirre I, Alamillo-Iniesta A, Rodríguez-Pérez R, Vélez-Aguilera G, Amaro-Encarnación E, Jiménez-Gutiérrez E, Vásquez-Limeta A, Samuel Laredo-Cisneros M, Morales-Lázaro SL, Tiburcio-Félix R, Ortega A, Magaña JJ, Winder SJ, Cisneros B. Enhanced nuclear protein export in premature aging and rescue of the progeria phenotype by modulation of CRM1 activity. Aging Cell 2019; 18:e13002. [PMID: 31305018 PMCID: PMC6718587 DOI: 10.1111/acel.13002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 06/12/2019] [Accepted: 06/22/2019] [Indexed: 12/11/2022] Open
Abstract
The study of Hutchinson-Gilford progeria syndrome (HGPS) has provided important clues to decipher mechanisms underlying aging. Progerin, a mutant lamin A, disrupts nuclear envelope structure/function, with further impairment of multiple processes that culminate in senescence. Here, we demonstrate that the nuclear protein export pathway is exacerbated in HGPS, due to progerin-driven overexpression of CRM1, thereby disturbing nucleocytoplasmic partitioning of CRM1-target proteins. Enhanced nuclear export is central in HGPS, since pharmacological inhibition of CRM1 alleviates all aging hallmarks analyzed, including senescent cellular morphology, lamin B1 downregulation, loss of heterochromatin, nuclear morphology defects, and expanded nucleoli. Exogenous overexpression of CRM1 on the other hand recapitulates the HGPS cellular phenotype in normal fibroblasts. CRM1 levels/activity increases with age in fibroblasts from healthy donors, indicating that altered nuclear export is a common hallmark of pathological and physiological aging. Collectively, our findings provide novel insights into HGPS pathophysiology, identifying CRM1 as potential therapeutic target in HGPS.
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Affiliation(s)
- Ian García-Aguirre
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Alma Alamillo-Iniesta
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Ruth Rodríguez-Pérez
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Griselda Vélez-Aguilera
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Elianeth Amaro-Encarnación
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Elizabeth Jiménez-Gutiérrez
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Alejandra Vásquez-Limeta
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research-Frederick, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Marco Samuel Laredo-Cisneros
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
- Department of Biomedical Science, University of Sheffield, Sheffield, UK
| | - Sara L Morales-Lázaro
- Department of Cognitive Neuroscience, Institute of Cellular Physiology, National Autonomous University of Mexico (UNAM), Mexico City, Mexico
| | - Reynaldo Tiburcio-Félix
- Department of Toxicology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Arturo Ortega
- Department of Toxicology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Jonathan J Magaña
- Laboratory of Genomic Medicine, Department of Genetics, National Rehabilitation Institute, "Luis Guillermo Ibarra Ibarra", Mexico City, Mexico
| | - Steve J Winder
- Department of Biomedical Science, University of Sheffield, Sheffield, UK
| | - Bulmaro Cisneros
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
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Tiburcio-Félix R, Cisneros B, Hernández-Kelly LCR, Hernández-Contreras MA, Luna-Herrera J, Rea-Hernández I, Jiménez-Aguilar R, Olivares-Bañuelos TN, Ortega A. Neuronal Nitric Oxide Synthase in Cultured Cerebellar Bergmann Glia: Glutamate-Dependent Regulation. ACS Chem Neurosci 2019; 10:2668-2675. [PMID: 31091406 DOI: 10.1021/acschemneuro.8b00656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Glutamate exerts its actions through the activation of membrane receptors expressed in neurons and glia cells. The signaling properties of glutamate transporters have been characterized recently, suggesting a complex array of signaling transactions triggered by presynaptic released glutamate. In the cerebellar molecular layer, glutamatergic synapses are surrounded by Bergmann glia cells, compulsory participants of glutamate turnover and supply to neurons. Since a glutamate-dependent increase in cGMP levels has been described in these cells and the nitric oxide-cGMP signaling cascade increases their glutamate uptake activity, we describe here the Bergmann glia expression of neuronal nitric oxide synthetase. An augmentation of neuronal nitric oxide synthase was found upon glutamate exposure. This effect is mediated by glutamate transporters and is related to an increase in the stability of the enzyme. These results strengthen the notion of a complex regulation of glial glutamate uptake that supports neuronal glutamate signaling.
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Affiliation(s)
- Reynaldo Tiburcio-Félix
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Apartado Postal 14-740, Ciudad de México 07360, Mexico
| | - Bulmaro Cisneros
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Apartado Postal 14-740, Ciudad de México 07360, Mexico
| | - Luisa C. R. Hernández-Kelly
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN, Apartado Postal 14-740, Ciudad de México 07360, Mexico
| | - María A. Hernández-Contreras
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Ciudad de México 11340, México
| | - Julieta Luna-Herrera
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Ciudad de México 11340, México
| | - Ismael Rea-Hernández
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Apartado Postal 14-740, Ciudad de México 07360, Mexico
| | - Rosalinda Jiménez-Aguilar
- Unidad de Cuidados Intensivos Pediátricos, Hospital General La Raza Gaudencio González Garza, Unidad de Alta Especialidad Médica (UMAE), Instituto Mexicano del Seguro Social, Ciudad de México 02990, México
| | - Tatiana N. Olivares-Bañuelos
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Baja California 22860, México
| | - Arturo Ortega
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN, Apartado Postal 14-740, Ciudad de México 07360, Mexico
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Azuara-Medina PM, Sandoval-Duarte AM, Morales-Lázaro SL, Modragón-González R, Vélez-Aguilera G, Gómez-López JDD, Jiménez-Gutiérrez GE, Tiburcio-Félix R, Martínez-Vieyra I, Suárez-Sánchez R, Längst G, Magaña JJ, Winder SJ, Ortega A, Ramos Perlingeiro RDC, Jacobs LA, Cisneros B. The intracellular domain of β-dystroglycan mediates the nucleolar stress response by suppressing UBF transcriptional activity. Cell Death Dis 2019; 10:196. [PMID: 30814495 PMCID: PMC6393529 DOI: 10.1038/s41419-019-1454-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/21/2019] [Accepted: 02/11/2019] [Indexed: 12/12/2022]
Abstract
β-dystroglycan (β-DG) is a key component of multiprotein complexes in the plasma membrane and nuclear envelope. In addition, β-DG undergoes two successive proteolytic cleavages that result in the liberation of its intracellular domain (ICD) into the cytosol and nucleus. However, stimuli-inducing ICD cleavage and the physiological relevance of this proteolytic fragment are largely unknown. In this study we show for the first time that β-DG ICD is targeted to the nucleolus where it interacts with the nuclear proteins B23 and UBF (central factor of Pol I-mediated rRNA gene transcription) and binds to rDNA promoter regions. Interestingly DG silencing results in reduced B23 and UBF levels and aberrant nucleolar morphology. Furthermore, β-DG ICD cleavage is induced by different nucleolar stressors, including oxidative stress, acidosis, and UV irradiation, which implies its participation in the response to nucleolar stress. Consistent with this idea, overexpression of β-DG elicited mislocalization and decreased levels of UBF and suppression of rRNA expression, which in turn provoked altered ribosome profiling and decreased cell growth. Collectively our data reveal that β-DG ICD acts as negative regulator of rDNA transcription by impeding the transcriptional activity of UBF, as a part of the protective mechanism activated in response to nucleolar stress.
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Affiliation(s)
- Paulina Margarita Azuara-Medina
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico
| | - Ariana María Sandoval-Duarte
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico
| | - Sara L Morales-Lázaro
- Departamento de Neurociencia Cognitiva, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
| | - Ricardo Modragón-González
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico
| | - Griselda Vélez-Aguilera
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico
| | - Juan de Dios Gómez-López
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico
| | - Guadalupe Elizabeth Jiménez-Gutiérrez
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico
| | - Reynaldo Tiburcio-Félix
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico
| | - Ivette Martínez-Vieyra
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, 07320, Ciudad de México, Mexico
| | - Rocío Suárez-Sánchez
- Laboratorio de Medicina Genómica, Instituto Nacional de Rehabilitación, 14389, Ciudad de México, Mexico
| | - Gernot Längst
- Biochemistry Centre Regensburg (BCR), Universität Regensburg, 93053, Regensburg, Germany
| | - Jonathan Javier Magaña
- Laboratorio de Medicina Genómica, Instituto Nacional de Rehabilitación, 14389, Ciudad de México, Mexico
| | - Steve J Winder
- Department of Biomedical Science, University of Sheffield, Sheffield, S10 2TN, UK
| | - Arturo Ortega
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07000, Ciudad de México, Mexico
| | | | - Laura A Jacobs
- Department of Biomedical Science, University of Sheffield, Sheffield, S10 2TN, UK
| | - Bulmaro Cisneros
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, 07360, Ciudad de México, Mexico.
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