49 results on '"Martínez-González, Loreto"'
Search Results
2. 7-Amino-[1,2,4]triazolo[1,5-a][1,3,5]triazines as CK1δ inhibitors: Exploring substitutions at the 2 and 5-positions
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Grieco, Ilenia, Bassani, Davide, Trevisan, Letizia, Salmaso, Veronica, Cescon, Eleonora, Prencipe, Filippo, Da Ros, Tatiana, Martinez-Gonzalez, Loreto, Martinez, Ana, Spalluto, Giampiero, Moro, Stefano, and Federico, Stephanie
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- 2024
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3. Designing multitarget ligands for neurodegenerative diseases with improved permeability trough PLGA nanoencapsulation
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Nozal, Vanesa, Fernández-Gómez, Paula, García-Rubia, Alfonso, Martínez-González, Loreto, Cuevas, Eva P., Carro, Eva, Palomo, Valle, and Martínez, Ana
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- 2024
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4. Casein kinase 1 inhibitor avoids TDP-43 pathology propagation in a patient-derived cellular model of amyotrophic lateral sclerosis
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Cuevas, Eva P., Martinez-Gonzalez, Loreto, Gordillo, Clara, Tosat-Bitrián, Carlota, Pérez de la Lastra, Carmen, Sáenz, Amets, Gil, Carmen, Palomo, Valle, Martin-Requero, Ángeles, and Martinez, Ana
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- 2024
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5. Casein kinase 1 inhibitor avoids TDP-43 pathology propagation in a patient-derived cellular model of amyotrophic lateral sclerosis
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Fundación la Caixa, Fundación Francisco Luzón, Ministerio de Ciencia e Innovación (España), Consejo Superior de Investigaciones Científicas (España), Instituto de Salud Carlos III, Ministerio de Educación (España), Cuevas, Eva P. [0000-0001-6477-1283], Martínez-González, Loreto [0000-0003-4593-4889], Tosat-Bitrian, Carlota [0000-0002-0525-3512], Pérez de la Lastra, Carmen [0009-0007-1956-4948], Sáenz, Amets [0000-0002-0704-1150], Gil, Carmen [0000-0002-3882-6081], Palomo, Valle [0000-0002-1473-4086], Martín-Requero, Ángeles [0000-0002-3416-9440], Martínez Gil, Ana [0000-0002-2707-8110], Cuevas, Eva P., Martínez-González, Loreto, Gordillo, Clara, Tosat-Bitrian, Carlota, Pérez de la Lastra, Carmen, Sáenz, Amets, Gil, Carmen, Palomo, Valle, Martín-Requero, Ángeles, Martínez Gil, Ana, Fundación la Caixa, Fundación Francisco Luzón, Ministerio de Ciencia e Innovación (España), Consejo Superior de Investigaciones Científicas (España), Instituto de Salud Carlos III, Ministerio de Educación (España), Cuevas, Eva P. [0000-0001-6477-1283], Martínez-González, Loreto [0000-0003-4593-4889], Tosat-Bitrian, Carlota [0000-0002-0525-3512], Pérez de la Lastra, Carmen [0009-0007-1956-4948], Sáenz, Amets [0000-0002-0704-1150], Gil, Carmen [0000-0002-3882-6081], Palomo, Valle [0000-0002-1473-4086], Martín-Requero, Ángeles [0000-0002-3416-9440], Martínez Gil, Ana [0000-0002-2707-8110], Cuevas, Eva P., Martínez-González, Loreto, Gordillo, Clara, Tosat-Bitrian, Carlota, Pérez de la Lastra, Carmen, Sáenz, Amets, Gil, Carmen, Palomo, Valle, Martín-Requero, Ángeles, and Martínez Gil, Ana
- Abstract
Amyotrophic lateral sclerosis is a fatal neurodegenerative disease without a cure to reverse its progression. Its main hallmark is the nuclear protein TDP-43, which undergoes different post-translational modifications leading to a loss of function in the nucleus and an increase in toxicity in the cytoplasm. Previous reports have indicated that pathogenic TDP-43 exhibits prion-like propagation in various contexts. With the aim of advancing therapeutics focused on preventing the propagation of TDP-43 pathology, we studied the potential role of pathogenic TDP-43 in lymphoblasts from sporadic ALS patients. We used lymphoblastoid cell lines from sporadic ALS patients as a source of pathogenic forms of TDP-43, and healthy human cells (lymphoblasts, myoblasts, neuroblastoma SH-SY5Y, or osteosarcoma U2OS) as recipient cells to investigate the seeding and spread of TDP-43 proteinopathy. Furthermore, we evaluated the potential of targeting TDP-43 phosphorylation with a CK-1 inhibitor to prevent the propagation of the pathology. The results presented herein indicate that pathogenic forms of TDP-43 are secreted into the extracellular medium of sporadic ALS lymphoblasts and could be transported by extracellular vesicles, spreading TDP-43 pathology to healthy cells. Moreover, tunneling nanotubes have also been discovered in pathological cells and may be involved in the transport of TDP-43. Interestingly, targeting TDP-43 phosphorylation with an in-house designed CK-1 inhibitor (IGS2.7) was sufficient to halt TDP-43 pathology transmission, in addition to its known effects on restoring the homeostasis of TDP-43 protein in patients-derived cells.
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- 2024
6. Targeting nuclear protein TDP-43 by cell division cycle kinase 7 inhibitors: A new therapeutic approach for amyotrophic lateral sclerosis
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Rojas-Prats, Elisa, Martinez-Gonzalez, Loreto, Gonzalo-Consuegra, Claudia, Liachko, Nicole F., Perez, Concepción, Ramírez, David, Kraemer, Brian C., Martin-Requero, Ángeles, Perez, Daniel I., Gil, Carmen, de Lago, Eva, and Martinez, Ana
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- 2021
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7. TTBK1 and CK1 inhibitors restore TDP-43 pathology and avoid disease propagation in lymphoblast from Alzheimer’s disease patients
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Fundación la Caixa, Fundación Francisco Luzón, Instituto de Salud Carlos III, Ministerio de Ciencia e Innovación (España), Ministerio de Educación (España), Martínez-González, Loreto [0000-0003-4593-4889], Cuevas, Eva P. [0000-0001-6477-1283], Tosat-Bitrian, Carlota [0000-0002-0525-3512], Nozal, Vanesa [0000-0001-5260-5683], Gil, Carmen [0000-0002-3882-6081], Palomo, Valle [0000-0002-1473-4086], Martín-Requero, Ángeles [0000-0002-3416-9440], Martínez Gil, Ana [0000-0002-2707-8110], Martínez-González, Loreto, Cuevas, Eva P., Tosat-Bitrian, Carlota, Nozal, Vanesa, Gil, Carmen, Palomo, Valle, Martín-Requero, Ángeles, Martínez Gil, Ana, Fundación la Caixa, Fundación Francisco Luzón, Instituto de Salud Carlos III, Ministerio de Ciencia e Innovación (España), Ministerio de Educación (España), Martínez-González, Loreto [0000-0003-4593-4889], Cuevas, Eva P. [0000-0001-6477-1283], Tosat-Bitrian, Carlota [0000-0002-0525-3512], Nozal, Vanesa [0000-0001-5260-5683], Gil, Carmen [0000-0002-3882-6081], Palomo, Valle [0000-0002-1473-4086], Martín-Requero, Ángeles [0000-0002-3416-9440], Martínez Gil, Ana [0000-0002-2707-8110], Martínez-González, Loreto, Cuevas, Eva P., Tosat-Bitrian, Carlota, Nozal, Vanesa, Gil, Carmen, Palomo, Valle, Martín-Requero, Ángeles, and Martínez Gil, Ana
- Abstract
Introduction: TDP-43 proteinopathy in Alzheimer’s disease (AD) patients is recently emerging as a relevant pathomolecular event that may have been overlooked. Recent results in immortalized lymphocytes from AD patients have shown not only an increase of post-translational modifications in TDP-43, such as hyperphosphorylation and fragmentation, but also its prionic behaviour and cell-to-cell disease transmission. With the main goal to advance therapeutic interventions, we present in this work different kinase inhibitors with potential to restore this pathological mechanism., Methodology: We have used immortalized lymphocytes from healthy controls and AD severe patients to evaluate the correction of TDP-43 pathology after the treatment with previously synthetized TTBK1 and CK1 inhibitors. Moreover we used the conditioned mediums of these cells to perform different disease propagation experiments., Results: TDP-43 pathology observed in lymphoblasts from severe AD patients is reduced after the treatment with TTBK1 and CK1 inhibitors (decreasing phosphorylation and increasing nuclear localisation), Furthermore, the significant increase in TDP-43 phosphorylation, cytoplasmic accumulation and aberrant F-actin protrusions (TNT-like structures) observed in control cells growing in CM from AD lymphoblasts were abolished when the CM from AD lymphoblasts treated with previously reported TTBK1 and CK1 inhibitors were used. In addition, the cytosolic transport mediated by molecular motors of the receptor cells was altered with the induced TDP-43 pathology, but it was not produced with the abovementioned pretreated CMs., Conclusion: TTBK1 and CK1 inhibitors, specially VNG1.47 and IGS2.7 compounds, restore TDP-43 pathology and avoid cell-to-cell propagation in immortalized lymphocytes from AD patients, being excellent candidates for the future therapy of this prevalent and devastating disease.
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- 2023
8. Potential anti-Alzheimer effects of selected Lamiaceae plants through polypharmacology on glycogen synthase kinase-3β, β-secretase, and casein kinase 1δ
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Gürbüz, Perihan, Martinez, Ana, Pérez, Concepción, Martínez-González, Loreto, Göger, Fatih, and Ayran, İrem
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- 2019
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9. Chameleon-like behavior of indolylpiperidines in complex with cholinesterases targets: Potent butyrylcholinesterase inhibitors
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Chierrito, Talita P.C., Pedersoli-Mantoani, Susimaire, Roca, Carlos, Sebastian-Pérez, Victor, Martínez-Gonzalez, Loreto, Pérez, Daniel I., Perez, Concepción, Canales, Angeles, Cañada, F. Javier, Campillo, Nuria E., Carvalho, Ivone, and Martinez, Ana
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- 2018
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10. Recapitulation of Pathological TDP-43 Features in Immortalized Lymphocytes from Sporadic ALS Patients
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Posa, Diana, Martínez-González, Loreto, Bartolomé, Fernando, Nagaraj, Siranjeevi, Porras, Gracia, Martínez, Ana, and Martín-Requero, Ángeles
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- 2019
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11. Interference of the complex between NCS-1 and Ric8a with phenothiazines regulates synaptic function and is an approach for fragile X syndrome
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Mansilla, Alicia, Chaves-Sanjuan, Antonio, Campillo, Nuria E., Semelidou, Ourania, Martínez-González, Loreto, Infantes, Lourdes, González-Rubio, Juana María, Gil, Carmen, Conde, Santiago, Skoulakis, Efthimios M. C., Ferrús, Alberto, Martínez, Ana, and Sánchez-Barrena, María José
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- 2017
12. Motor neuron preservation and decrease of in vivo TDP-43 phosphorylation by protein CK-1δ kinase inhibitor treatment
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Martínez-González, Loreto, Rodríguez-Cueto, Carmen, Cabezudo, Diego, Bartolomé, Fernando, Andrés-Benito, Pol, Ferrer, Isidro, Gil, Carmen, Martín-Requero, Ángeles, Fernández-Ruiz, Javier, Martínez, Ana, and de Lago, Eva
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- 2020
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13. Tau-tubulin kinase (TTBK) inhibitor compounds
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Martínez Gil, Ana, Gil, Carmen, Nozal, Vanesa, Palomo, Valle, Martín-Requero, Ángeles, Martínez-González, Loreto, Martínez Gil, Ana, Gil, Carmen, Nozal, Vanesa, Palomo, Valle, Martín-Requero, Ángeles, and Martínez-González, Loreto
- Abstract
[EN] The present invention relates to TTBK enzyme inhibitors of formula (I) and to the use thereof for the treatment and/or prevention of tauopathies, such as Alzheimer's disease (AD), and/or TDP-43 pathologies, such as amyotrophic lateral sclerosis (ALS)., [ES] La presente invención se refiere a inhibidores de la enzima TTBK de fórmula (I) a y su uso para el tratamiento y/o prevención de taupatías, tal como enfermedad de Alzheimer (AD), y/o TDP-43 patías, tal como esclerosis lateral amiotrófica (ALS)., [FR] La présente invention se rapporte à des inhibiteurs de l'enzyme TTBK de formule (I) et à leur utilisation pour le traitement et/ou la prévention de taupathies, telles que la maladie d'Alzheimer (AD), et/ou de TDP-43pathies, telles que la sclérose latérale amyotrophique (SLA).
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- 2023
14. Compuestos inhibidores de la quinasa de tau y tubulina (TTBK)
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Martínez Gil, Ana, Gil, Carmen, Nozal, Vanesa, Palomo, Valle, Martín-Requero, Ángeles, Martínez-González, Loreto, Cuevas, Eva P., Martínez Gil, Ana, Gil, Carmen, Nozal, Vanesa, Palomo, Valle, Martín-Requero, Ángeles, Martínez-González, Loreto, and Cuevas, Eva P.
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[ES] Compuestos inhibidores de la quinasa de tau y tubulina (TTBK). La presente invención se refiere a inhibidores de la enzima TTBK de fórmula (I) a y su uso para el tratamiento y/o prevención de taupatías, tal como enfermedad de Alzheimer (AD), y/o TDP-43 patías, tal como esclerosis lateral amiotrófica (ALS)., [EN] Tau and tubulin kinase (TTBK) inhibitory compounds. The present invention relates to inhibitors of the TTBK enzyme of formula (I) a and their use for the treatment and/or prevention of tauopathies, such as Alzheimer's disease (AD), and/or TDP-43 diseases, such as lateral sclerosis. amyotrophic (ALS).
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- 2023
15. Insights into real-time chemical processes in a calcium sensor protein-directed dynamic library
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Canal-Martín, Andrea, Sastre, Javier, Sánchez-Barrena, María José, Canales, Angeles, Baldominos, Sara, Pascual, Naiara, Martínez-González, Loreto, Molero, Dolores, Fernández-Valle, Mª Encarnación, Sáez, Elena, Blanco-Gabella, Patricia, Gómez-Rubio, Elena, Martín-Santamaría, Sonsoles, Sáiz, Almudena, Mansilla, Alicia, Cañada, F. Javier, Jiménez-Barbero, Jesús, Martínez, Ana, and Pérez-Fernández, Ruth
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- 2019
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16. Targeting nuclear protein TDP-43 by cell division cycle kinase 7 inhibitors: A new therapeutic approach for amyotrophic lateral sclerosis
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Comunidad de Madrid, Ministerio de Economía y Competitividad (España), Foundation for the National Institutes of Health, US Department of Veterans Affairs, Comisión Nacional de Investigación Científica y Tecnológica (Chile), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Rojas-Prats, Elisa [0000-0002-5747-8764], Martínez-González, Loreto [0000-0003-4593-4889], Gonzalo-Consuegra, Claudia [0000-0002-4062-7516], Liachko, Nicole F. [0000-0003-1250-3871], Pérez, Concepción [0000-0001-7183-4035], Ramírez, David [0000-0003-0002-1189], Kraemer, Brian C. [0000-0002-2252-7634], Martín-Requero, Ángeles [0000-0002-3416-9440], Pérez, Daniel I. [0000-0003-1774-4471], Gil, Carmen [0000-0002-3882-6081], De Lago, E. [0000-0002-6260-3777], Martínez, Ana [0000-0002-2707-8110], Rojas-Prats, Elisa, Martínez-González, Loreto, Gonzalo-Consuegra, Claudia, Liachko, Nicole F., Pérez, Concepción, Ramírez, David, Kraemer, Brian C., Martín-Requero, Ángeles, Pérez, Daniel I., Gil, Carmen, De Lago, E., Martínez Gil, Ana, Comunidad de Madrid, Ministerio de Economía y Competitividad (España), Foundation for the National Institutes of Health, US Department of Veterans Affairs, Comisión Nacional de Investigación Científica y Tecnológica (Chile), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Rojas-Prats, Elisa [0000-0002-5747-8764], Martínez-González, Loreto [0000-0003-4593-4889], Gonzalo-Consuegra, Claudia [0000-0002-4062-7516], Liachko, Nicole F. [0000-0003-1250-3871], Pérez, Concepción [0000-0001-7183-4035], Ramírez, David [0000-0003-0002-1189], Kraemer, Brian C. [0000-0002-2252-7634], Martín-Requero, Ángeles [0000-0002-3416-9440], Pérez, Daniel I. [0000-0003-1774-4471], Gil, Carmen [0000-0002-3882-6081], De Lago, E. [0000-0002-6260-3777], Martínez, Ana [0000-0002-2707-8110], Rojas-Prats, Elisa, Martínez-González, Loreto, Gonzalo-Consuegra, Claudia, Liachko, Nicole F., Pérez, Concepción, Ramírez, David, Kraemer, Brian C., Martín-Requero, Ángeles, Pérez, Daniel I., Gil, Carmen, De Lago, E., and Martínez Gil, Ana
- Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease with no known cure. Aggregates of the nuclear protein TDP-43 have been recognized as a hallmark of proteinopathy in both familial and sporadic cases of ALS. Post-translational modifications of this protein, include hyperphosphorylation, cause disruption of TDP-43 homeostasis and as a consequence, promotion of its neurotoxicity. Among the kinases involved in these changes, cell division cycle kinase 7 (CDC7) plays an important role by directly phosphorylating TDP-43. In the present manuscript the discovery, synthesis, and optimization of a new family of selective and ATP-competitive CDC7 inhibitors based on 6-mercaptopurine scaffold are described. Moreover, we demonstrate the ability of these inhibitors to reduce TDP-43 phosphorylation in both cell cultures and transgenic animal models such as C. elegans and Prp-hTDP43 (A315T) mice. Altogether, the compounds described here may be useful as versatile tools to explore the role of CDC7 in TDP-43 phosphorylation and also as new drug candidates for the future development of ALS therapies.
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- 2021
17. Increasing brain permeability of PHA-767491, a cell division cycle 7 kinase inhibitor, with biodegradable polymeric nanoparticles
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Comunidad de Madrid, Instituto de Salud Carlos III, Ministerio de Economía y Competitividad (España), Ministerio de Educación, Cultura y Deporte (España), Rojas-Prats, Elisa [0000-0002-5747-8764], Tosat-Bitrian, Carlota [0000-0002-0525-3512], Martínez-González, Loreto [0000-0003-4593-4889], Nozal, Vanesa [0000-0001-5260-5683], Pérez, Daniel I. [0000-0003-1774-4471], Martínez, Ana [0000-0002-2707-8110], Rojas-Prats, Elisa, Tosat-Bitrian, Carlota, Martínez-González, Loreto, Nozal, Vanesa, Pérez, Daniel I., Martínez Gil, Ana, Comunidad de Madrid, Instituto de Salud Carlos III, Ministerio de Economía y Competitividad (España), Ministerio de Educación, Cultura y Deporte (España), Rojas-Prats, Elisa [0000-0002-5747-8764], Tosat-Bitrian, Carlota [0000-0002-0525-3512], Martínez-González, Loreto [0000-0003-4593-4889], Nozal, Vanesa [0000-0001-5260-5683], Pérez, Daniel I. [0000-0003-1774-4471], Martínez, Ana [0000-0002-2707-8110], Rojas-Prats, Elisa, Tosat-Bitrian, Carlota, Martínez-González, Loreto, Nozal, Vanesa, Pérez, Daniel I., and Martínez Gil, Ana
- Abstract
A potent cell division cycle 7 (CDC7) kinase inhibitor, known as PHA-767491, has been described to reduce the transactive response DNA binding protein of 43 KDa (TDP-43) phosphorylation in vitro and in vivo, which is one of the main proteins found to aggregate and accumulate in the cytoplasm of motoneurons in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) patients. However, the main drawback of this compound is its low permeability to the central nervous system (CNS), limiting its use for the treatment of neurological conditions. In this context, the use of drug delivery systems like nanocarriers has become an interesting approach to improve drug release to the CNS. In this study, we prepared and characterized biodegradable nanoparticles in order to encapsulate PHA-767491 and improve its permeability to the CNS. Our results demonstrate that poly (lactic-co-glycolic acid) (PLGA) nanoparticles with an average radius between 145 and 155 nm could be used to entrap PHA-767491 and enhance the permeability of this compound through the blood–brain barrier (BBB), becoming a promising candidate for the treatment of TDP-43 proteinopathies such as ALS.
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- 2021
18. Modulación deTDP-43: una nueva estrategia terapeútica para la esclerosis lateral amotrófica
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Martínez-González, Loreto, Martinez Gil, Ana, Martín-Requero, Ángeles, Ministerio de Ciencia, Innovación y Universidades (España), Martínez-González, Loreto [0000-0003-4593-4889], and Martínez-González, Loreto
- Subjects
TDP-43 ,Esclerosis lateral amiotrófica ,Biomedicina ,Enfermedades neurodegenerativas ,Proteinopatías - Abstract
229 p.-95 fig.-11 tab.-anexo, [EN]The prevalence of neurodegenerative diseases increases daily due to the longer life expectancy of the population as there are age-dependent diseases. The most common disorders by the number of patients are Alzheimer´s disease, Parkinson´s disease and in a lower range amyotrophic lateral sclerosis commonly known as ALS. ALS is a lethal motor neuron disease characterized by the progressive muscle paralysis due to the upper and lower motor neuron degeneration being the average survival from onset to death between 3-4 years. The unknown etiology and the lack of effective treatment highlighted the urgent need to discover effective disease-modifying targets and therefore effective treatments to prevent and stop disease progression. ALS is considered as a multifactorial disorder where a combination of environmental and genetic factors contributes to motorneuron degeneration. Protein aggregates with different posttranslational modifications such as hyperphosphorylation and ubiquitination, is one of the most common biomarkers among neurodegenerative diseases. The main pathological hallmark in almost 97% of ALS patients is the presence of TDP-43 protein aggregates in the cytoplasm of the affected cells promoted by the aberrant phosphorylation and other post-translational modifications. TDP-43 is a nuclear protein involved in the regulation of multiple cellular processes as it regulates the transcription and transport of more than 600 mRNA. The dynamic equilibrium of TDP-43 between nucleus and cytoplasm is altered in disease-affected neurons causing a dysregulation of several mechanisms. Therefore, the inhibition of protein kinases involved in the abnormal phosphorylation of TDP-43 has emerged as a promising therapeutic approach for ALS in order to recover TDP-43 homeostasis and therefore multiple signalling pathways., With this purpose, we have carried out a medicinal chemistry program where the thesis “TDP-43 modulation: a novel therapeutic approach for Amyotrophic Lateral Sclerosis” have taken place, whose the main goal has been the validation of protein kinases as new therapeutic targets and the develop of protein kinases inhibitors as valuable drugs to treat ALS and TDP-43 proteinopathy disorders. Firstly, we have performed a screening in our in-house MBC chemical library, selecting small molecules with potent and selective activity against protein kinases involved in the hyperphosphorylation of TDP-43 (CK-1, CDC7, TTBK1 and GSK-3β), with high permeable ability to cross the blood brain barrier.To assess the neuroprotective properties of these compounds, we used different in vitro and in vivo models. Potential modulation of TDP-43 pathology was first evaluated in a human neuroblastoma cell line model where most of the compounds showed ability to decrease TDP-43 phosphorylation upon ethacrynic acid treatment. We next stablished a human cellular model based on the immortalization and characterization of lymphocytes from ALS patients and healthy subjects. Altered TDP-43 homeostasis observed in ALS immortalized lymphocytes was recovered after treatment with selected compounds by decreasing TDP-43 phosphorylation, truncation and normalizing TDP-43 nuclear localization.The involvement of different mechanism in ALS pathogenesis highlighted the need for a therapeutic approach targeted to multiple aspects. Therefore, we have tested selected drugs in an LPS-induced neuroinflammation model developed in rat primary microglial cultures.Finally, the best pharmacological agents were tested in TDP-43 transgenic mice, where we observed in all cases a reduction in TDP-43 phosphorylation and a neuroprotective and/or anti-inflammatory effect in the lumbar spinal cord of transgenic mice when treated with protein kinases inhibitors.Given the high failure rates and the length of time required for new drug development, we consider the “drug repurposing strategy” as the best approach to accelerate drug discovery process and therefore find an effective treatment for diseases that lack of it. Find new applications that are outside the scope of the original medical indications of a drug, is what we have made with Tidegluib, an in-house designed ATP-non-competitive GSK-3β inhibitor, that have shown good safety and tolerability in patients with different neurological disorders.With this aim we havetested its neuroprotective effect in several in vitro and in vivo models. The promising results obtained propose the repurposing of Tideglusib as a good therapeutic strategy for ALS treatment.In view of these results, the inhibition of protein kinases involved in the aberrant TDP-43 phosphorylation by small molecules with brain high-permeable ability could be a novel strategy for the treatment of ALS as they recover TDP-43 homeostasis, the main hallmark of the disease., [ES]Los grandes avances en el campo de la medicina han contribuido al aumento de la esperanza de vida media de la población. Este hecho va ligado al incremento del número de casos de enfermedades neurodegenerativas, siendo las más incidentes la enfermedad de Alzheimer y la enfermedad de Parkinson. La esclerosis lateral amiotrófica, conocida como ELA, es la enfermedad de neurona motora más frecuente en adultos. Aunque es una enfermedad rara, el aumento considerable del número de casos en los últimos años ha hecho que su visibilidad sea cada vez mayor. Esta patología se caracteriza por la pérdida progresiva de neuronas motoras que acaba derivando en una parálisis muscular de pronóstico mortal, siendo la esperanza de vida media desde el diagnostico de 3 a 4 años. La búsqueda de terapias efectivas que consigan frenar la degeneración neuronal de esta devastadora enfermedad es de gran necesidad puesto que los dos únicos fármacos aprobados son paliativos y tan solo son capaces de alargar la vida de los pacientes de 3 a 6 meses. La ELA, al igual que la mayoría de patologías neurodegenerativas, es una enfermedad multifactorial, es decir, la muerte neuronal es consecuencia de la suma de diversos procesos celulares patológicamente alterados. Un biomarcador común a todas ellas, es la presencia de agregados proteicos citoplasmáticos en las células afectadas como consecuencia de modificaciones post-traduccionales anómalas que sufren en su estructura, como es la hiperfosforilación y la ubiquitinación. La característica patológica principal presente en los tejidos de un 97% de pacientes con ELA, es la agregación citoplasmática de TDP-43 fosforilada y ubiquitinada. TDP-43 regula la expresión de más de 600 ARNm a nivel nuclear, sin embargo, en estado patológico se trasloca al citoplasma y agrega produciéndose en consecuencia una desregulación de numerosos procesos celulares. De ahí la importancia que adquiere la búsqueda de fármacos que reestablezcan la homeostasis de esta proteína tan esencial. Así, el desarrollo de inhibidores de las proteínas quinasas implicadas en la fosforilación de TDP-43, ha adquirido gran relevancia en la comunidad científica y, en concreto, en este grupo de investigación, cuya práctica en el desarrollo de inhibidores de quinasas para diferentes patologías, cuenta con más de 20 años de experiencia. Con esta intención, se ha desarrollado la presente Tesis Doctoral bajo el nombre: “Modulación de TDP-43: una nueva estrategia terapéutica para la esclerosis lateral amiotrófica”, cuyo principal objetivo es la validación de las proteínas quinasas que modulan la fosforilación de TDP-43 como dianas terapéuticas, así como el desarrollo de sus inhibidores como candidatos a fármacos para la ELA y aquellas patologías que cursen con esta proteinopatía., Concretamente, se ha llevado a cabo el desarrollo preclínico de pequeñas moléculas de la quimioteca MBC del grupo de investigación, que presentan actividad inhibitoria frente a las quinasas que modulan la fosforliación de TDP-43: CK-1, CDC7, TTBK1 y GSK-3β. Para ello, se realizó en primer lugar una selección en base a la selectividad y a la actividad inhibitoria que presentan dichos compuestos, evaluando posteriormente la capacidad para atravesar la barrera hematoencefálica y llegar a su órgano diana: el sistema nervioso central. Una vez seleccionados los mejores agentes farmacológicos, se evaluó su potencial terapéutico en diferentes modelos celulares y animales que recapitulan la proteinopatía de TDP-43. En primer lugar, se validó el efecto neuroprotector frente a la hiperfosforlación de TDP-43 en un ensayo fenotípico desarrollado en la línea de neuroblastoma humano SH-SY5Y. A continuación, se procedió a la inmortalización y caracterización de células mononucleares de sangre periférica procedente de donantes sanos y de pacientes con ELA, estableciéndose como modelo para evaluar el potencial terapéutico de los compuestos, puesto que recapitulan las características patológicas de la enfermedad. Por último, y dado que la ELA es una enfermedad multifactorial, se evalúo el efecto inmunomodulador de determinados compuestos en un modelo de neuroinflamación desarrollado en cultivos primarios de microglía murina. Ante los prometedores resultados obtenidos en los ensayos celulares, se evalúo el potencial neuroprotector de un inhibidor representativo de cada quinasa en el modelo de ratón transgénico que sobreexpresa TDP-43 con la mutación A315T. Todos los candidatos a fármaco mostraron una eficacia significativa a la hora de modular la fosforilación patológica de TDP-43 in vivo, presentando a su vez un efecto neuroprotector y antiinflamatorio observado a nivel histológico y/o comportamental en función del inhibidor de estudio. Todo este procedimiento de desarrollo de un fármaco es un proceso de larga duración y con un elevado coste económico. Sin embargo, existe lo que se conoce como “reposicionamiento de fármacos”, es decir, la búsqueda de nuevas aplicaciones terapéuticas a fármacos cuya seguridad ha sido probada en humanos, bien porque están en ensayos clínicos, o porque ya han sido aprobados por las agencias reguladoras. Por ello, se propuso el reposicionamiento de Tideglusib, un inhibidor ATP-no competitivo de GSK-3β diseñado en el grupo de investigación, como la aproximación más rápida para la búsqueda de terapias efectivas para esta enfermedad, puesto que su seguridad y eficacia ha sido evaluada en humanos para otras patologías neurológicas. El significativo efecto neuroprotector que presentó Tideglusib en los modelos celulares y animales establecidos para el estudio de la ELA, ha llevado al diseño de un ensayo clínico fase II, que se iniciará en Suiza en cuanto el protocolo sea aprobado. En conclusión, los inhibidores de las cuatro quinasas propuestas han mostrado una eficacia significativa a la hora de recuperar la homeostasis de TDP-43, reduciendo la hiperfosforilación y fragmentación, y en consecuencia, recuperando la localización nuclear de esta proteína en los modelos celulares y animales establecidos para el estudio de la ELA. Estos resultados son prometedores y avalan la inhibición de las quinasas que modulan la fosforilación patológica de TDP-43, descrita en la mayoría de pacientes, como una buena estrategia terapéutica para el tratamiento de esta proteinopatía y en concreto de la ELA., Proyecto ELA-Madrid (financiado por la Comunidad de Madrid y la Unión Europea, ELA-MADRID.B2017/BMD-3813).
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- 2021
19. TDP-43 Modulation by Tau-Tubulin Kinase 1 Inhibitors: A New Avenue for Future Amyotrophic Lateral Sclerosis Therapy
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Nozal, Vanesa, primary, Martínez-González, Loreto, additional, Gomez-Almeria, Marta, additional, Gonzalo-Consuegra, Claudia, additional, Santana, Paula, additional, Chaikuad, Apirat, additional, Pérez-Cuevas, Eva, additional, Knapp, Stefan, additional, Lietha, Daniel, additional, Ramírez, David, additional, Petralla, Sabrina, additional, Monti, Barbara, additional, Gil, Carmen, additional, Martín-Requero, Angeles, additional, Palomo, Valle, additional, de Lago, Eva, additional, and Martinez, Ana, additional
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- 2022
- Full Text
- View/download PDF
20. Modulación de TDP-43: una nueva estrategia terapéutica para la esclerosis lateral amiotrófica
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Martínez González, Loreto, Martínez Gil, Ana, and Martín Requero, María Ángeles
- Subjects
Neurociencias - Abstract
Los grandes avances en el campo de la medicina han contribuido al aumento de la esperanza de vida media de la población. Este hecho va ligado al incremento del número de casos de enfermedades neurodegenerativas siendo las más incidentes la enfermedad de Alzheimer y la enfermedad de Parkinson. La esclerosis lateral amiotrófica, conocida como ELA, es la enfermedad de neurona motora más frecuente en adultos. Aunque es una enfermedad rara, el aumento considerable del número de casos en los últimos años ha hecho que su visibilidad sea cada vez mayor. Esta patología se caracteriza por la pérdida progresiva de neuronas motoras que acaba derivando en una parálisis muscular de pronóstico mortal, siendo la esperanza de vida media desde el diagnostico de 3 a 4 años. La búsqueda de terapias efectivas que consigan frenar la degeneración neuronal de esta devastadora enfermedad es de gran necesidad puesto que los dos únicos fármacos aprobados son paliativos y tan solo son capaces de alargar la vida de los pacientes de 3 a 6 meses. La ELA, al igual que la mayoría de patologías neurodegenerativas, es una enfermedad multifactorial, es decir, la muerte neuronal es consecuencia de la suma de diversos procesos celulares patológicamente alterados. Un biomarcador común a todas ellas, es la presencia de agregados proteicos citoplasmáticos en las células afectadas como consecuencia de modificaciones post-traduccionales anómalas que sufren en su estructura, como es la hiperfosforilación y la ubiquitinación. La característica patológica principal presente en los tejidos de un 97% de pacientes con ELA, es la agregación citoplasmática de TDP-43 fosforilada y ubiquitinada. TDP-43 regula la expresión de más de 600 ARNm a nivel nuclear, sin embargo, en estado patológico se trasloca al citoplasma y agrega produciéndose en consecuencia una desregulación de numerosos procesos celulares. De ahí la importancia que adquiere la búsqueda de fármacos que reestablezcan la homeostasis de esta proteína tan esencial. Así, el desarrollo de inhibidores de las proteínas quinasas implicadas en la fosforilación de TDP-43, ha adquirido gran relevancia en la comunidad científica y en concreto en este grupo de investigación, cuya práctica en el desarrollo de inhibidores de quinasas para diferentes patologías, cuenta con más de 20 años de experiencia. Con esta intención, se ha desarrollado la presente Tesis Doctoral bajo el nombre: “Modulación de TDP-43: una nueva estrategia terapéutica para la esclerosis lateral amiotrófica”, en la que el principal objetivo ha sido la validación de las proteínas quinasas que modulan la fosforilación de TDP-43 como dianas terapéuticas, así como el desarrollo de sus inhibidores como candidatos a fármacos para la ELA y aquellas patologías que cursen con esta proteinopatía...
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- 2021
21. Tideglusib, a Non-ATP Competitive Inhibitor of GSK-3β as a Drug Candidate for the Treatment of Amyotrophic Lateral Sclerosis
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Martínez-González, Loreto, primary, Gonzalo-Consuegra, Claudia, additional, Gómez-Almería, Marta, additional, Porras, Gracia, additional, de Lago, Eva, additional, Martín-Requero, Ángeles, additional, and Martínez, Ana, additional
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- 2021
- Full Text
- View/download PDF
22. Modulación de TDP-43: una nueva estrategia terapéutica para la esclerosis lateral amiotrófica
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Martínez Gil, Ana, Martín Requero, María Ángeles, Martínez González, Loreto, Martínez Gil, Ana, Martín Requero, María Ángeles, and Martínez González, Loreto
- Abstract
Los grandes avances en el campo de la medicina han contribuido al aumento de la esperanza de vida media de la población. Este hecho va ligado al incremento del número de casos de enfermedades neurodegenerativas siendo las más incidentes la enfermedad de Alzheimer y la enfermedad de Parkinson. La esclerosis lateral amiotrófica, conocida como ELA, es la enfermedad de neurona motora más frecuente en adultos. Aunque es una enfermedad rara, el aumento considerable del número de casos en los últimos años ha hecho que su visibilidad sea cada vez mayor. Esta patología se caracteriza por la pérdida progresiva de neuronas motoras que acaba derivando en una parálisis muscular de pronóstico mortal, siendo la esperanza de vida media desde el diagnostico de 3 a 4 años. La búsqueda de terapias efectivas que consigan frenar la degeneración neuronal de esta devastadora enfermedad es de gran necesidad puesto que los dos únicos fármacos aprobados son paliativos y tan solo son capaces de alargar la vida de los pacientes de 3 a 6 meses. La ELA, al igual que la mayoría de patologías neurodegenerativas, es una enfermedad multifactorial, es decir, la muerte neuronal es consecuencia de la suma de diversos procesos celulares patológicamente alterados. Un biomarcador común a todas ellas, es la presencia de agregados proteicos citoplasmáticos en las células afectadas como consecuencia de modificaciones post-traduccionales anómalas que sufren en su estructura, como es la hiperfosforilación y la ubiquitinación. La característica patológica principal presente en los tejidos de un 97% de pacientes con ELA, es la agregación citoplasmática de TDP-43 fosforilada y ubiquitinada. TDP-43 regula la expresión de más de 600 ARNm a nivel nuclear, sin embargo, en estado patológico se trasloca al citoplasma y agrega produciéndose en consecuencia una desregulación de numerosos procesos celulares. De ahí la importancia que adquiere la búsqueda de fármacos que reestablezcan la homeostasis de esta proteína tan es, The prevalence of neurodegenerative diseases increases daily due to the longer life expectancy of the population as there are age-dependent diseases. The most common disorders by the number of patients are Alzheimer´s disease, Parkinson´s disease and in a lower range amyotrophic lateral sclerosis commonly known as ALS. ALS is a lethal motor neuron disease characterized by the progressive muscle paralysis due to the upper and lower motor neuron degeneration being the average survival from onset to death between 3-4 years. The unknown etiology and the lack of effective treatment highlighted the urgent need to discover effective disease-modifying targets and therefore effective treatments to prevent and stop disease progression. ALS is considered as a multifactorial disorder where a combination of environmental and genetic factors contributes to motorneuron degeneration. Protein aggregates with different posttranslational modifications such as hyperphosphorylation and ubiquitination, is one of the most common biomarkers among neurodegenerative diseases. The main pathological hallmark in almost 97% of ALS patients is the presence of TDP-43 protein aggregates in the cytoplasm of the affected cells promoted by the aberrant phosphorylation and other post-translational modifications. TDP-43 is a nuclear protein involved in the regulation of multiple cellular processes as it regulates the transcription and transport of more than 600 mRNA. The dynamic equilibrium of TDP-43 between nucleus and cytoplasm is altered in disease-affected neurons causing a dysregulation of several mechanisms. Therefore, the inhibition of protein kinases involved in the abnormal phosphorylation of TDP-43 has emerged as a promising therapeutic approach for ALS in order to recover TDP-43 homeostasis and therefore multiple signalling pathways. With this purpose, we have carried out a medicinal chemistry program where the thesis “TDP-43 modulation: a novel therapeutic approach for Amyotrophic Lateral Sc
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- 2021
23. Running Title: CDC-7 inhibitors correct TDP-43 pathology in ALS and FLTD
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Vaca, Gabriela, Martínez-González, Loreto, Fernández, Ana, Rojas-Prats, Elisa, Porras, Gracia, Cuevas, Eva P., Gil, Carmen, Martínez, Ana, Martín-Requero, Ángeles, Comunidad de Madrid, Ministerio de Economía y Competitividad (España), Instituto de Salud Carlos III, Secretaría de Educación Superior, Ciencia, Tecnología e Innovación (Ecuador), Ministerio de Educación, Cultura y Deporte (España), Vaca, Gabriela [0000-0003-4707-7147], Cuevas, Eva P. [0000-0001-6477-1283], Gil, Carmen [0000-0002-3882-6081], Martínez, Ana [0000-0002-2707-8110], and Martín-Requero, Ángeles [0000-0002-3416-9440]
- Subjects
FTLD-TDP ,TDP-43 ,mental disorders ,nutritional and metabolic diseases ,ALS ,Lymphoblasts ,CDC-7 inhibitors ,nervous system diseases - Abstract
38 p.-7 fig.-2 tab. TDP-43 has been identified as the major component of protein aggregates found in affected neurons in FTLD-TDP and ALS patients. TDP-43 is hyperphosphorylated,ubiquitinated and cleaved in the C-terminus. CDC-7 was reported to phosphorylate TDP-43. There are not effective treatments for either FTLD-TDP or ALS, being a pressing need the search of new therapies. We hypothesized that modulating CDC-7 activity with small molecules able to interfere with TDP-43 phosphorylation could be a good therapeutic strategy for these diseases. Here, we have studied the effects of novel brain penetrant, thiopurine-based, CDC-7 inhibitors in TDP-43 homeostasis in immortalized lymphocytes from FTLD-TDP patients, carriers of a loss-of-function GRN mutation, as well as in cells derived from sporadic ALS patients. We found that selective CDC-7 inhibitors, ERP1.14a and ERP1.28a are able to decrease the enhanced TDP-43 phosphorylation in cells derived from FTLD-TDP and ALS patients and to prevent cytosolic accumulation of TDP-43. Moreover, treatment of FTLD-TDP lymphoblasts with CDC-7 inhibitors leads to recovering the nuclear function of TDP43-inducing CDK6 repression. We suggest that CDC-7 inhibitors, mainly the heterocyclic compounds here shown, may be considered as promising drugs candidates for the ALS/FTD spectrum. This work has been supported by grants from Comunidad de Madrid (ELA_Madrid grant B2017/BMD-3813), from the Ministerio de Ciencia, Innovación y Universidades (SAF2016-76693-R to A.M), and ISCiii CIBERNED (CB18/05/00040). G.V. was supported by a fellowship from SENECYT (Ecuador). E.R. was supported by FPU14- 00204 (Ministerio de Educación, Ciencia y Deporte).
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- 2020
24. CDC7-Inhibiting purine derivatives and their use for the treatment of neurological conditions
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Martínez, Ana, Gil, Carmen, Martín Requero, A., Rojas-Prats, Elisa, Martínez-González, Loreto, Martínez, Ana, Gil, Carmen, Martín Requero, A., Rojas-Prats, Elisa, and Martínez-González, Loreto
- Abstract
La presente invención se refiere al uso de una serie de derivados de purina que presentan la siguiente fórmula general: Y que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7. [ES], The present invention relates to the use of a series of purine derivatives having the following general formula: (I) and which are capable of inhibiting Cdc7 kinase activity and, therefore, suitable for use in the treatment of neurological diseases such as, inter alia, Alzheimer's disease, amyotrophic lateral sclerosis or frontotemporal dementia, which involve hyperphosphorylation of TDP-43 and the subsequent formation of clusters, induced by Cdc7. [EN]
- Published
- 2020
25. Derivados de purina inhibidores de CDC7 y su uso para el tratamiento de patologías neurológicas
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Martínez Gil, Ana, Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, Martínez Gil, Ana, Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, and Martínez-González, Loreto
- Abstract
La presente invención se refiere al uso de una serie de derivados de purina que presentan la siguiente fórmula general. Y que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7.
- Published
- 2020
26. CDC-7-inhibitors compounds and use thereof for the treatment of neurological conditions
- Author
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Martínez Gil, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, Pérez, Concepción, Martínez Gil, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, and Pérez, Concepción
- Abstract
The present invention relates to a series of substituted purine derivatives capable of inhibiting CDC7 kinase activity and, as such, suitable for use in the treatment of neurological diseases such as, inter alia, Alzheimer's disease, amyotrophic lateral sclerosis or frontotemporal dementia, involving hyperphosphorylation of TDP-43 and the subsequent formation of aggregates, induced by CDC7
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- 2020
27. Therapeutic potential of novel cell division cycle kinase 7 inhibitors on TDP-43-related pathogenesis such as frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS)
- Author
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Comunidad de Madrid, Ministerio de Economía y Competitividad (España), Instituto de Salud Carlos III, Secretaría de Educación Superior, Ciencia, Tecnología e Innovación (Ecuador), Ministerio de Educación, Cultura y Deporte (España), Vaca, Gabriela [0000-0003-4707-7147], Cuevas, Eva P. [0000-0001-6477-1283], Gil, Carmen [0000-0002-3882-6081], Martínez, Ana [0000-0002-2707-8110], Martín-Requero, Ángeles [0000-0002-3416-9440], Vaca, Gabriela, Martínez-González, Loreto, Fernández, Ana, Rojas-Prats, Elisa, Porras, Gracia, Cuevas, Eva P., Gil, Carmen, Martínez Gil, Ana, Martín-Requero, Ángeles, Comunidad de Madrid, Ministerio de Economía y Competitividad (España), Instituto de Salud Carlos III, Secretaría de Educación Superior, Ciencia, Tecnología e Innovación (Ecuador), Ministerio de Educación, Cultura y Deporte (España), Vaca, Gabriela [0000-0003-4707-7147], Cuevas, Eva P. [0000-0001-6477-1283], Gil, Carmen [0000-0002-3882-6081], Martínez, Ana [0000-0002-2707-8110], Martín-Requero, Ángeles [0000-0002-3416-9440], Vaca, Gabriela, Martínez-González, Loreto, Fernández, Ana, Rojas-Prats, Elisa, Porras, Gracia, Cuevas, Eva P., Gil, Carmen, Martínez Gil, Ana, and Martín-Requero, Ángeles
- Abstract
TDP-43 has been identified as the major component of protein aggregates found in affected neurons in FTLD-TDP and ALS patients. TDP-43 is hyperphosphorylated,ubiquitinated and cleaved in the C-terminus. CDC-7 was reported to phosphorylate TDP-43. There are not effective treatments for either FTLD-TDP or ALS, being a pressing need the search of new therapies. We hypothesized that modulating CDC-7 activity with small molecules able to interfere with TDP-43 phosphorylation could be a good therapeutic strategy for these diseases. Here, we have studied the effects of novel brain penetrant, thiopurine-based, CDC-7 inhibitors in TDP-43 homeostasis in immortalized lymphocytes from FTLD-TDP patients, carriers of a loss-of-function GRN mutation, as well as in cells derived from sporadic ALS patients. We found that selective CDC-7 inhibitors, ERP1.14a and ERP1.28a are able to decrease the enhanced TDP-43 phosphorylation in cells derived from FTLD-TDP and ALS patients and to prevent cytosolic accumulation of TDP-43. Moreover, treatment of FTLD-TDP lymphoblasts with CDC-7 inhibitors leads to recovering the nuclear function of TDP43-inducing CDK6 repression. We suggest that CDC-7 inhibitors, mainly the heterocyclic compounds here shown, may be considered as promising drugs candidates for the ALS/FTD spectrum.
- Published
- 2020
28. CDC7-Inhibiting purine derivatives and their use for the treatment of neurological conditions
- Author
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Martínez Gil, Ana, Gil, Carmen, Martín Requero, A., Rojas-Prats, Elisa, Martínez-González, Loreto, Martínez Gil, Ana, Gil, Carmen, Martín Requero, A., Rojas-Prats, Elisa, and Martínez-González, Loreto
- Abstract
La presente invención se refiere al uso de una serie de derivados de purina que presentan la siguiente fórmula general: Y que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7. [ES], The present invention relates to the use of a series of purine derivatives having the following general formula: (I) and which are capable of inhibiting Cdc7 kinase activity and, therefore, suitable for use in the treatment of neurological diseases such as, inter alia, Alzheimer's disease, amyotrophic lateral sclerosis or frontotemporal dementia, which involve hyperphosphorylation of TDP-43 and the subsequent formation of clusters, induced by Cdc7. [EN]
- Published
- 2020
29. Increasing Brain Permeability of PHA-767491, a Cell Division Cycle 7 Kinase Inhibitor, with Biodegradable Polymeric Nanoparticles
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Rojas-Prats, Elisa, primary, Tosat-Bitrián, Carlota, additional, Martínez-González, Loreto, additional, Nozal, Vanesa, additional, Pérez, Daniel I., additional, and Martínez, Ana, additional
- Published
- 2021
- Full Text
- View/download PDF
30. New protein-protein interaction modulators for the therapeutic regulation of synapse dysfunction in neurodevelopmental disorders and neurodegeneration
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Mansilla, Alicia, Chaves Sanjuán, Antonio, Roca, Carlos, Canal-Martín, Andrea, Daniel-Mozo, Miguel, Martínez-González, Loreto, Infantes, L., Ferrús, Alberto, Martínez, A., Pérez-Fernández, Ruth, Campillo, Nuria E., Sánchez-Barrena, María José, Mansilla, Alicia, Chaves Sanjuán, Antonio, Roca, Carlos, Canal-Martín, Andrea, Daniel-Mozo, Miguel, Martínez-González, Loreto, Infantes, L., Ferrús, Alberto, Martínez, A., Pérez-Fernández, Ruth, Campillo, Nuria E., and Sánchez-Barrena, María José
- Published
- 2019
31. Derivados de purina inhibidores de CDC7 y su uso para el tratamiento de patologías neurológicas
- Author
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Martínez, Ana, Gil, Carmen, Martín Requero, A., Rojas-Prats, Elisa, and Martínez-González, Loreto
- Abstract
La presente invención se refiere al uso de una serie de derivados de purina que presentan la siguiente fórmula general: Y que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7. [ES], The present invention relates to the use of a series of purine derivatives having the following general formula: (I) and which are capable of inhibiting Cdc7 kinase activity and, therefore, suitable for use in the treatment of neurological diseases such as, inter alia, Alzheimer's disease, amyotrophic lateral sclerosis or frontotemporal dementia, which involve hyperphosphorylation of TDP-43 and the subsequent formation of clusters, induced by Cdc7. [EN], Consejo Superior de Investigaciones Científicas (España), A1 Solicitud de patente con informe sobre el estado de la técnica
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- 2018
32. CDC-7-inhibitors compounds and use thereof for the treatment of neurological conditions
- Author
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Martínez, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, and Pérez, Concepción
- Abstract
The present invention relates to a series of substituted purine derivatives capable of inhibiting Cdc7 kinase activity and, as such, suitable for use in the treatment of neurological diseases such as, inter alia, Alzheimer's disease, amyotrophic lateral sclerosis or frontotemporal dementia, involving hyperphosphorylation of TDP-43 and the subsequent formation of clusters, induced by Cdc7. [EN], La presente invención se refiere a una serie de derivados de purina sustituidas que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7. [ES], Consejo Superior de Investigaciones Científicas (España), A1 Solicitud de patente con informe sobre el estado de la técnica
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- 2018
33. Fármacos multidiana en el posible tratamiento de la esclerosis lateral amiotrófica
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Lezana Juberías, Esperanza Bertila, primary, Martínez-González, Loreto, additional, and Martínez, Ana, additional
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- 2019
- Full Text
- View/download PDF
34. Derivatives of the β-Crinane Amaryllidaceae Alkaloid Haemanthamine as Multi-Target Directed Ligands for Alzheimer’s Disease
- Author
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Kohelová, Eliška, primary, Peřinová, Rozálie, additional, Maafi, Negar, additional, Korábečný, Jan, additional, Hulcová, Daniela, additional, Maříková, Jana, additional, Kučera, Tomáš, additional, Martínez González, Loreto, additional, Hrabinova, Martina, additional, Vorčáková, Katarina, additional, Nováková, Lucie, additional, De Simone, Angela, additional, Havelek, Radim, additional, and Cahlíková, Lucie, additional
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- 2019
- Full Text
- View/download PDF
35. Compuestos inhibidores de CDC-7 y su uso para el tratamiento de patologías neurológicas
- Author
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Martínez Gil, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, Pérez, Concepción, Martínez Gil, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, and Pérez, Concepción
- Abstract
La presente invención se refiere a una serie de derivados de purina sustituidas que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7
- Published
- 2018
36. CDC-7-inhibitors compounds and use thereof for the treatment of neurological conditions
- Author
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Martínez Gil, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, Pérez, Concepción, Martínez Gil, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, and Pérez, Concepción
- Abstract
The present invention relates to a series of substituted purine derivatives capable of inhibiting Cdc7 kinase activity and, as such, suitable for use in the treatment of neurological diseases such as, inter alia, Alzheimer's disease, amyotrophic lateral sclerosis or frontotemporal dementia, involving hyperphosphorylation of TDP-43 and the subsequent formation of clusters, induced by Cdc7. [EN], La presente invención se refiere a una serie de derivados de purina sustituidas que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7. [ES]
- Published
- 2018
37. Deciphering the Inhibition of the Neuronal Calcium Sensor 1 and the Guanine Exchange Factor Ric8a with a Small Phenothiazine Molecule for the Rational Generation of Therapeutic Synapse Function Regulators
- Author
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Ministerio de Economía y Competitividad (España), Roca, Carlos, Martínez-González, Loreto, Daniel-Mozo, Miguel, Sastre, J., Infantes, L., Mansilla, A., Chaves Sanjuán, Antonio, González-Rubio, Juana M., Gil, C, Cañada, F. Javier, Martínez, A., Sánchez-Barrena, María José, Campillo, Nuria E., Ministerio de Economía y Competitividad (España), Roca, Carlos, Martínez-González, Loreto, Daniel-Mozo, Miguel, Sastre, J., Infantes, L., Mansilla, A., Chaves Sanjuán, Antonio, González-Rubio, Juana M., Gil, C, Cañada, F. Javier, Martínez, A., Sánchez-Barrena, María José, and Campillo, Nuria E.
- Abstract
Protein-protein interactions (PPIs) are known to play an essential role between the neuronal calcium sensor 1 (NCS-1) and the guanine exchange factor Ric8a to regulate synapse function, emerging as a druggable interface for synaptopathies such as the fragile X syndrome (FXS). Recently, the phenothiazine FD44 has been identified as an inhibitor of this PPI, decreasing the abnormally high synapse number and enhancing associative learning in a FXS animal model. Here, we have integrated advanced experimental and computational studies to obtain important structural insights into Drosophila NCS-1/FD44 recognition to understand the basis of its affinity and specificity and generate improved PPI regulators. This has allowed the identification of a new small drug-like molecule, IGS-1.76, which efficiently inhibits the human NCS-1/Ric8a complex with improved binding potency. The crystal structure of the Drosophila NCS-1/IGS-1.76 complex demonstrates that the new inhibitor, although chemically different from FD44, shares the same mechanism of action and constitutes a new hit candidate for FXS.
- Published
- 2018
38. Compuestos inhibidores de CDC-7 y su uso para el tratamiento de patologías neurológicas
- Author
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Martínez, Ana, Pérez, Daniel I., Gil, Carmen, Martín-Requero, Ángeles, Rojas-Prats, Elisa, Martínez-González, Loreto, and Pérez, Concepción
- Abstract
Compuestos inhibidores de CDC-7 y su uso para el tratamiento de patologías neurológicas. La presente invención se refiere a una serie de derivados de purina sustituidas que son capaces de inhibir la actividad de la quinasa CDC7, por lo que resultan útiles para el tratamiento de enfermedades neurológicas tales como la enfermedad de Alzheimer, la esclerosis lateral amiotrófica o la demencia frontotemporal, entre otras, donde se produce una hiperfosforilación de TDP-43 y posterior formación de aglomerados inducida por la CDC7. [ES], The present invention relates to a series of substituted purine derivatives capable of inhibiting Cdc7 kinase activity and, as such, suitable for use in the treatment of neurological diseases such as, inter alia, Alzheimer's disease, amyotrophic lateral sclerosis or frontotemporal dementia, involving hyperphosphorylation of TDP-43 and the subsequent formation of clusters, induced by Cdc7. [EN], Consejo Superior de Investigaciones Científicas (España), A1 Solicitud de patente con informe sobre el estado de la técnica
- Published
- 2017
39. Modulación de la patología de TDP-43 por inhibidores selectivos de TTBK1
- Author
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Benítez Fernández, Rocío, Martínez González, Loreto, Nozal García, Vanesa, Martín-Requero, Ángeles, and Martínez Gil, Ana
- Subjects
TDP-43 ,Neuroprotección ,Inhibidores ,Esclerosis lateral amiotrófica ,TTBK1 ,Pharmacy ,Farmacia ,Biology ,Biología y Biomedicina - Abstract
La esclerosis lateral amiotrófica es una enfermedad neurodegenerativa que cursa con la pérdida progresiva de las motoneuronas. Es una patología de origen desconocido y multifactorial que en el 97% de los pacientes se caracteriza por inclusiones citoplasmáticas de TDP-43 (proteína TAR de unión a ADN/ARN). Esta proteína se localiza principalmente en el núcleo donde desempeña funciones esenciales y relacionadas con la regulación del ARN y la plasticidad neuronal; sin embargo, en condiciones patológicas se trasloca al citoplasma donde es fosforilada, favoreciendo su agregación y la formación de depósitos citoplasmáticos responsables de la degeneración neuronal. Las quinasas involucradas en la fosforilación de TDP-43 son CK1, CDC7, TTBK2 y TTBK1, siendo esta última la diana de interés en este trabajo. TTBK1 es una tau-tubulina quinasa específica del sistema nervioso central, y recientemente, se ha demostrado en un modelo de C. elegans que es una de las enzimas responsables de regular la fosforilación de TDP-43. Se seleccionaron una serie de inhibidores selectivos para TTBK1 de los cuales se estudiaron sus propiedades físico-químicas in silico, su coeficiente de permeabilidad de la barrera hematoencefálica in vitro y sus efectos neuroprotectores mediante la disminución de los niveles de TDP-43 in vivo. Nuestros resultados parecen mostrar un efecto neuroprotector de los inhibidores selectivos de TTBK1 y un posible abordaje novedoso para el tratamiento de esta patología
- Published
- 2017
40. An aminophenothiazine inhibitor of the NCS-1/Ric8a complex regulates synaptic function in fragile X syndrome
- Author
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Sanchez-Barrena, Maria Jose, primary, Mansilla, Alicia, additional, Chaves-Sanjuán, Antonio, additional, Campillo, Nuria, additional, Semelidou, Ourania, additional, Martínez-González, Loreto, additional, Skoulakis, Efthimios, additional, Ferrús, Alberto, additional, and Martínez, Ana, additional
- Published
- 2018
- Full Text
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41. Recapitulation of Pathological TDP-43 Features in Immortalized Lymphocytes from Sporadic ALS Patients
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Posa, Diana, primary, Martínez-González, Loreto, additional, Bartolomé, Fernando, additional, Nagaraj, Siranjeevi, additional, Porras, Gracia, additional, Martínez, Ana, additional, and Martín-Requero, Ángeles, additional
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- 2018
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42. Interference of the complex between NCS-1 & Ric8a with phenothiazines regulates synaptic function & is an approach for fragile X syndrome
- Author
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Ministerio de Economía y Competitividad (España), Mansilla, Alicia, Chaves Sanjuán, Antonio, Campillo, Nuria E., Semelidou, O., Martínez-González, Loreto, Infantes, L., González-Rubio, Juana M., Gil, Carmen, Conde, Santiago, Skoulakis, E.M.C., Ferrús, Alberto, Martínez Gil, Ana, Sánchez-Barrena, María José, Ministerio de Economía y Competitividad (España), Mansilla, Alicia, Chaves Sanjuán, Antonio, Campillo, Nuria E., Semelidou, O., Martínez-González, Loreto, Infantes, L., González-Rubio, Juana M., Gil, Carmen, Conde, Santiago, Skoulakis, E.M.C., Ferrús, Alberto, Martínez Gil, Ana, and Sánchez-Barrena, María José
- Abstract
The protein complex formed by the Ca2+ sensor neuronal calcium sensor 1 (NCS-1) and the guanine exchange factor protein Ric8a coregulates synapse number and probability of neurotransmitter release, emerging as a potential therapeutic target for diseases affecting synapses, such as fragile X syndrome (FXS), the most common heritable autism disorder. Using crystallographic data and the virtual screening of a chemical library, we identified a set of heterocyclic small molecules as potential inhibitors of the NCS-1/Ric8a interaction. The aminophenothiazine FD44 interferes with NCS-1/Ric8a binding, and it restores normal synapse number and associative learning in a Drosophila FXS model. The synaptic effects elicited by FD44 feeding are consistent with the genetic manipulation of NCS-1. The crystal structure of NCS-1 bound to FD44 and the structure- function studies performed with structurally close analogs explain the FD44 specificity and the mechanism of inhibition, in which the small molecule stabilizes a mobile C-Terminal helix inside a hydrophobic crevice of NCS-1 to impede Ric8a interaction. Our study shows the drugability of the NCS-1/Ric8a interface and uncovers a suitable region in NCS-1 for development of additional drugs of potential use on FXS and related synaptic disorders.
- Published
- 2017
43. LRRK2 como nueva diana terapéutica en retinosis pigmentaria
- Author
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Usada Molinero, Eduardo de la, Zaldívar Diez de Bonilla, Josefa, Martínez González, Loreto, and Martínez Gil, Ana
- Subjects
Neurogénesis ,Retina neural ,Biología ,Microglía ,LRRK2 ,Pharmacy ,Farmacia ,Biology ,Retinosis pigmentaria - Abstract
La retinosis pigmentaria (RP) es un grupo heterogéneo de distrofias retinianas causado por mutaciones en múltiples genes. La RP cursa con disfunción y muerte progresiva de fotorreceptores, lo que causa una pérdida de visión cada vez mayor que termina con ceguera la mayoría de los casos. La enzima leucine- rich repeat kinase 2 (LRRK2) está implicada en procesos tanto inflamatorios como de muerte celular asociados a diferentes patologías neurodegenerativas, y por ello sus inhibidores son una buena estrategia terapéutica para el tratamiento de las mismas, sobre todo para la enfermedad de Parkinson. Dado que la retina neural puede considerarse la parte más externa del sistema nervioso central, en este trabajo se recogen los primeros datos que muestran la presencia de LRRK2 en un modelo de RP por qPCR, pudiendo ser considerada como una nueva diana terapéutica para el tratamiento de esta patología. Con el fin de buscar potenciales agentes terapéuticos para RP, hemos realizado estudios in vivo con un inhibidor de LRRK2. Este compuesto se administró sistemáticamente mediante inyección intraperitoneal a ratones rd10, modelo de RP, a partir del día postnatal 15 y durante diez días consecutivos para estudiar su potencial efecto neuroprotector, sobre la estructura e integridad de la retina, y su efecto antiinflamatorio analizando la localización de la microglía mediante inmunohistoquímica de criosecciones de retina de estos animales. La administración del compuesto parece atenuar la pérdida de fotorreceptores y la migración de la microglía, lo que podría preservar la capacidad visual y disminuir la inflamación que acompañan a la patología en ratones rd10. Nuestros resultados parecen mostrar un efecto neuroprotector de los fármacos inhibidores de LRRK2 en RP e indican el importante papel que puede tener este grupo de compuestos, y en especial SGP1.4, un derivado de isatina utilizado en este estudio, en un futuro tratamiento para esta patología
- Published
- 2016
44. Development of Blood–Brain Barrier Permeable Nitrocatechol-Based Catechol O-Methyltransferase Inhibitors with Reduced Potential for Hepatotoxicity
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Silva, Tiago, primary, Mohamed, Tarek, additional, Shakeri, Arash, additional, Rao, Praveen P. N., additional, Martínez-González, Loreto, additional, Pérez, Daniel I., additional, Martínez, Ana, additional, Valente, Maria João, additional, Garrido, Jorge, additional, Uriarte, Eugenio, additional, Serrão, Paula, additional, Soares-da-Silva, Patrício, additional, Remião, Fernando, additional, and Borges, Fernanda, additional
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- 2016
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45. An aminophenothiazine inhibitor of the NCS-1/Ric8a complex regulates synaptic function in Fragile X Syndrome
- Author
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Sánchez-Barrena, María José, Mansilla, A., Chaves Sanjuán, Antonio, Campillo, Nuria E., Semelidou, O., Martínez-González, Loreto, Skoulakis, Efthimios, Ferrús, Alberto, Martínez Gil, Ana, Sánchez-Barrena, María José, Mansilla, A., Chaves Sanjuán, Antonio, Campillo, Nuria E., Semelidou, O., Martínez-González, Loreto, Skoulakis, Efthimios, Ferrús, Alberto, and Martínez Gil, Ana
- Published
- 2015
46. Tideglusib, a Non-ATP Competitive Inhibitor of GSK-3β as a Drug Candidate for the Treatment of Amyotrophic Lateral Sclerosis
- Author
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Gracia Porras, Claudia Gonzalo-Consuegra, Ángeles Martín-Requero, Eva de Lago, Loreto Martínez-González, Marta Gómez-Almería, Ana Martínez, Comunidad de Madrid, Instituto de Salud Carlos III, Agencia Estatal de Investigación (España), Martínez-González, Loreto, Gonzalo-Consuegra, Claudia, De Lago, E., Martín-Requero, Ángeles, Martínez, Ana, Martínez-González, Loreto [0000-0003-4593-4889], Gonzalo-Consuegra, Claudia [0000-0002-4062-7516], De Lago, E. [0000-0002-6260-3777], Martín-Requero, Ángeles [0000-0002-3416-9440], and Martínez, Ana [0000-0002-2707-8110]
- Subjects
Male ,Cytoplasm ,TDP-43 ,Pharmacology ,Mice ,Phosphorylation ,Amyotrophic lateral sclerosis ,Biology (General) ,Spectroscopy ,Fisioterapia ,Motor Neurons ,Kinase ,General Medicine ,Middle Aged ,Computer Science Applications ,DNA-Binding Proteins ,Chemistry ,medicine.anatomical_structure ,Pharmaceutical Preparations ,Spinal Cord ,QH301-705.5 ,Neurociencias ,Hyperphosphorylation ,Mice, Transgenic ,Myotonic dystrophy ,Article ,Catalysis ,Inorganic Chemistry ,In vivo ,Neuroblastoma ,Thiadiazoles ,mental disorders ,medicine ,Animals ,Humans ,Physical and Theoretical Chemistry ,Molecular Biology ,QD1-999 ,Aged ,Cell Nucleus ,Glycogen Synthase Kinase 3 beta ,business.industry ,GSK-3β ,Amyotrophic Lateral Sclerosis ,Organic Chemistry ,Tideglusib ,Drug Repositioning ,Motor neuron ,medicine.disease ,nervous system diseases ,Disease Models, Animal ,ALS ,business ,Protein Kinases - Abstract
14 p.-6 fig.-2 tab., Amyotrophic Lateral Sclerosis (ALS) is the most common degenerative motor neuron disease in adults. About 97% of ALS patients present TDP-43 aggregates with post-translational modifications, such as hyperphosphorylation, in the cytoplasm of affected cells. GSK-3β is one of the protein kinases involved in TDP-43 phosphorylation. Up-regulation of its expression and activity is reported on spinal cord and cortex tissues of ALS patients. Here, we propose the repurposing of Tideglusib, an in-house non-ATP competitive GSK-3β inhibitor that is currently in clinical trials for autism and myotonic dystrophy, as a promising therapeutic strategy for ALS. With this aim we have evaluated the efficacy of Tideglusib in different experimental ALS models both in vitro and in vivo. Moreover, we observed that GSK-3β activity is increased in lymphoblasts from sporadic ALS patients, with a simultaneous increase in TDP-43 phosphorylation and cytosolic TDP-43 accumulation. Treatment with Tideglusib decreased not only phospho-TDP-43 levels but also recovered its nuclear localization in ALS lymphoblasts and in a human TDP-43 neuroblastoma model. Additionally, we found that chronic oral treatment with Tideglusib is able to reduce the increased TDP-43 phosphorylation in the spinal cord of Prp-hTDP-43A315T mouse model. Therefore, we consider Tideglusib as a promising drug candidate for ALS, being proposed to start a clinical trial phase II by the end of the year., This research was funded by Madrid Community (B2017/BMD3813 ELA-Madrid), ISCiii (CIBERNED CB18/05/00040 and CB06/05/0089) and AEI (grant RTI2018-096100-B-I00 to Á.M.-R., PID2019-105600RB-I00 to A.M. and RTI2018-0988885-B-I00 to E.d.L.).
- Published
- 2021
47. Targeting nuclear protein TDP-43 by cell division cycle kinase 7 inhibitors: A new therapeutic approach for amyotrophic lateral sclerosis
- Author
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Concepción Pérez, Ángeles Martín-Requero, Ana Martínez, David Ramírez, Daniel I. Perez, Claudia Gonzalo-Consuegra, Loreto Martínez-González, Eva de Lago, Nicole F. Liachko, Elisa Rojas-Prats, Carmen Gil, Brian C. Kraemer, Comunidad de Madrid, Ministerio de Economía y Competitividad (España), Foundation for the National Institutes of Health, US Department of Veterans Affairs, Comisión Nacional de Investigación Científica y Tecnológica (Chile), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Rojas-Prats, Elisa, Martínez-González, Loreto, Gonzalo-Consuegra, Claudia, Liachko, Nicole F., Pérez, Concepción, Ramírez, David, Kraemer, Brian C., Martín-Requero, Ángeles, Pérez, Daniel I., Gil, Carmen, De Lago, E., Martínez, Ana, Rojas-Prats, Elisa [0000-0002-5747-8764], Martínez-González, Loreto [0000-0003-4593-4889], Gonzalo-Consuegra, Claudia [0000-0002-4062-7516], Liachko, Nicole F. [0000-0003-1250-3871], Pérez, Concepción [0000-0001-7183-4035], Ramírez, David [0000-0003-0002-1189], Kraemer, Brian C. [0000-0002-2252-7634], Martín-Requero, Ángeles [0000-0002-3416-9440], Pérez, Daniel I. [0000-0003-1774-4471], Gil, Carmen [0000-0002-3882-6081], De Lago, E. [0000-0002-6260-3777], and Martínez, Ana [0000-0002-2707-8110]
- Subjects
TDP-43 ,Transgene ,Hyperphosphorylation ,Cell Cycle Proteins ,Mice, Transgenic ,Protein Serine-Threonine Kinases ,01 natural sciences ,Mice ,Structure-Activity Relationship ,03 medical and health sciences ,Drug Discovery ,Tumor Cells, Cultured ,medicine ,Animals ,Humans ,Nuclear protein ,Amyotrophic lateral sclerosis ,Protein Kinase Inhibitors ,030304 developmental biology ,Pharmacology ,0303 health sciences ,Behavior, Animal ,Dose-Response Relationship, Drug ,Molecular Structure ,Drug discovery ,010405 organic chemistry ,Chemistry ,Kinase ,Amyotrophic Lateral Sclerosis ,Organic Chemistry ,Neurotoxicity ,General Medicine ,medicine.disease ,Recombinant Proteins ,0104 chemical sciences ,DNA-Binding Proteins ,Molecular Docking Simulation ,CDC7 inhibitors ,Cancer research ,Phosphorylation ,ALS ,FTLD - Abstract
58 p.-11 fig.-2 tab., Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease with no known cure. Aggregates of the nuclear protein TDP-43 have been recognized as a hallmark of proteinopathy in both familial and sporadic cases of ALS. Post-translational modifications of this protein, include hyperphosphorylation, cause disruption of TDP-43 homeostasis and as a consequence, promotion of its neurotoxicity. Among the kinases involved in these changes, cell division cycle kinase 7 (CDC7) plays an important role by directly phosphorylating TDP-43. In the present manuscript the discovery, synthesis, and optimization of a new family of selective and ATP-competitive CDC7 inhibitors based on 6-mercaptopurine scaffold are described. Moreover, we demonstrate the ability of these inhibitors to reduce TDP-43 phosphorylation in both cell cultures and transgenic animal models such as C. elegans and Prp-hTDP43 (A315T) mice. Altogether, the compounds described here may be useful as versatile tools to explore the role of CDC7 in TDP-43 phosphorylation and also as new drug candidates for the future development of ALS therapies., This work was supported by Comunidad de Madrid (grant B2017/BMD-3813), MINECO (grant SAF2016-76693-R and PID2019-105600RB-I00 to A.M., RTI2018-0988885-B-I00 to E.dL. and CTQ2015-66313-R to A.M.R.), ISCii CIBERNED (CB18/05/00040 to A.M., C.G. and A.M.R, and CB06/05/0089 to E.dL.), MECD (FPU14-00204. to E.R.), the National Institutes of Health (R01NS064131 to B.C.K.) and the Department of Veterans Affairs (Merit Review Grants I01BX003755 to B.C.K. and I01BX004044 to N.F.L.), CONICYT-PCI (grant REDES190074 to D.R. and A.M.) and FONDECYT (grant no. 11180604 to D.R.).
- Published
- 2021
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48. Emerging clinical investigational drugs for the treatment of amyotrophic lateral sclerosis
- Author
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Loreto Martinez, Ana Martinez, Fundación 'la Caixa', Fundación Luzón, Instituto de Salud Carlos III, Martínez-González, Loreto, and Martínez, Ana
- Subjects
Pharmacology ,New drugs ,Clinical trials ,Kinase inhibitors ,Pharmacology (medical) ,General Medicine ,Amyotrophic lateral sclerosis ,Emerging pharmacological therapies - Abstract
38 p.-5 fig.-2 tab., Introduction: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder caused by motoneuron death with a median survival time of 3-5 years since disease onset. There are no effective treatments to date. However, a variety of innovative investigational drugs and biological-based therapies are under clinical development., Areas covered: This review provides an overview of the clinical investigational small molecules as well as a brief summary of the biological-based therapies that are currently undergoing clinical trials for the treatment of ALS. All the data were obtained from ClinicalTrials.gov (registered through November 1)., Expert opinion: Drug discovery for ALS is an active and evolving field, where many investigational clinical drugs are in different trials. There are several mechanisms of action supporting all these new therapies, although proteostasis is gaining stage. Probably, small orally bioavailable molecules able to recover functional TDP-43 homeostasis may have solid chances to modify ALS progression., This manuscript was funded by La Caixa and Luzón Foundation (grant HR21-00931) and National Health Institute ISCiii (grant CB18/05/00040, CIBERNED).
- Published
- 2023
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49. TDP-43 Modulation by Tau-Tubulin Kinase 1 Inhibitors: A New Avenue for Future Amyotrophic Lateral Sclerosis Therapy
- Author
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Vanesa Nozal, Loreto Martínez-González, Marta Gomez-Almeria, Claudia Gonzalo-Consuegra, Paula Santana, Apirat Chaikuad, Eva Pérez-Cuevas, Stefan Knapp, Daniel Lietha, David Ramírez, Sabrina Petralla, Barbara Monti, Carmen Gil, Angeles Martín-Requero, Valle Palomo, Eva de Lago, Ana Martinez, Comunidad de Madrid, Ministerio de Economía y Competitividad (España), Agencia Estatal de Investigación (España), European Commission, Instituto de Salud Carlos III, Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), La Caixa, Nozal, Vanesa [0000-0001-5260-5683], Gonzalo-Consuegra, Claudia [0000-0002-4062-7516], Santana, Paula [0000-0002-5742-4926], Chaikuad, Apirat [0000-0003-1120-2209], Cuevas, Eva P. [0000-0001-6477-1283], Knapp, Stefan [0000-0001-5995-6494], Lietha, Daniel [0000-0002-6133-6486], Ramírez, David [0000-0003-0002-1189], Petralla, Sabrina [0000-0003-4009-5676], Monti, B. [0000-0003-0330-482X], Gil, Carmen [0000-0002-3882-6081], Martín-Requero, Ángeles [0000-0002-3416-9440], Palomo, Valle [0000-0002-1473-4086], De Lago, E. [0000-0002-6260-3777], Martínez, Ana [0000-0002-2707-8110], Nozal, Vanesa, Gonzalo-Consuegra, Claudia, Santana, Paula, Chaikuad, Apirat, Cuevas, Eva P., Knapp, Stefan, Lietha, Daniel, Ramírez, David, Petralla, Sabrina, Monti, B., Gil, Carmen, Martín-Requero, Ángeles, Palomo, Valle, De Lago, E., Martínez, Ana, Martínez-González, Loreto, Gomez-Almeria, Marta, Pérez-Cuevas, Eva, Monti, Barbara, Martín-Requero, Angele, de Lago, Eva, and Martinez, Ana
- Subjects
Male ,Kinase ,TTBK1 inhibitors ,Mice, Transgenic ,Protein Serine-Threonine Kinases ,Drug design ,Mice ,mental disorders ,Drug Discovery ,Animals ,Humans ,Tissue Distribution ,Phosphorylation ,Rats, Wistar ,Protein Kinase Inhibitors ,Inflammation ,Mice, Inbred BALB C ,Macrophages ,Amyotrophic Lateral Sclerosis ,ALS, TDP-43, Tau-Tubulin kinase (TTBK1), brain cell cultures, trangenic mice, microglia ,Brain ,TDP-43 phosphorylation ,Rats ,DNA-Binding Proteins ,Spinal Cord ,Case-Control Studies ,Molecular Medicine ,ALS - Abstract
68 p.-16 fig.-4 tab.+8 fig. supl.-5 tab. supl., Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease without any effective treatment. Protein TDP-43 is a pathological hallmark of ALS in both sporadic and familiar patients. Post-translational modifications of TDP-43 promote its aggregation in the cytoplasm. Tau-Tubulin kinase (TTBK1) phosphorylates TDP-43 in cellular and animal models; thus, TTBK1 inhibitors emerge as a promising therapeutic strategy for ALS. The design, synthesis, biological evaluation, kinase–ligand complex structure determination, and molecular modeling studies confirmed novel pyrrolopyrimidine derivatives as valuable inhibitors for further development. Moreover, compound 29 revealed good brain penetration in vivo and was able to reduce TDP-43 phosphorylation not only in cell cultures but also in the spinal cord of transgenic TDP-43 mice. A shift to M2 anti-inflammatory microglia was also demonstrated in vivo. Both these activities led to motor neuron preservation in mice, proposing pyrrolopyrimidine 29 as a valuable lead compound for future ALS therapy., This work was supported by Comunidad de Madrid (grant B2017/BMD-3813), the European Social Fund+ (ESF+), MINECO (Grants SAF2016-76693-R to A.M., RTI2018-0988885-B-I00 to E.d.L., and CTQ2015-66313-R to A.M.R.), AIE (RTI2018-099318-B-I00 to D.L., cofunded by the European Regional Development Fund (FEDER)), ISCiii CIBERNED (CB18/05/00040 to A.M., V.P., and A.M.R. and CB06/05/0089 to E.dL.), MECD (FPU16/04466 to V.N.), Cost Action CA15135 “MuTaLig” (COST-STSM-CA15135-37514 to L.M.G.), FONDECYT (Grant 11180604 to D.R.). V.P. has received financial support through the Postdoctoral Junior Leader Fellowship Program (LCF/BQ/PR18/11640007) from “la Caixa” Banking Foundation.
- Published
- 2022
- Full Text
- View/download PDF
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