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Aguirre FL, Piros E, Kaiser N, Vogel T, Petzold S, Gehrunger J, Hochberger C, Oster T, Hofmann K, Suñé J, Miranda E, Alff L. Revealing the quantum nature of the voltage-induced conductance changes in oxygen engineered yttrium oxide-based RRAM devices. Sci Rep 2024; 14:1122. [PMID: 38212346 PMCID: PMC10784569 DOI: 10.1038/s41598-023-49924-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/13/2023] [Indexed: 01/13/2024] Open
Abstract
In this work, the quasi-analog to discrete transition occurring in the current-voltage characteristic of oxygen engineered yttrium oxide-based resistive random-access memory (RRAM) devices is investigated in detail. In particular, the focus of our research is not on the absolute conductance values of this characteristic but on the magnitude of its conductance changes occurring during the reset process of the device. It is found that the detected changes correspond to conductance values predominantly of the order of the quantum unit of conductance G0 = 2e2/h, where e is the electron charge and h the Planck constant. This feature is observed even at conductance levels far above G0, i.e. where electron transport is seemingly diffusive. It is also observed that such behavior is reproducible across devices comprising yttrium oxide layers with different oxygen concentrations and measured under different voltage sweep rates. While the oxygen deficiency affects the total number of quantized conductance states, the magnitude of the changes in conductance, close to 1 G0, is invariant to the oxygen content of the functional layer.
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Affiliation(s)
- F L Aguirre
- Departament d'Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Valles, Spain.
- Intrinsic Semiconductor Technologies, Ltd., Buckinghamshire, United Kingdom.
| | - E Piros
- Advanced Thin Film Technology Division, Institute of Materials Science, Technische Universität Darmstadt, Darmstadt, Germany.
| | - N Kaiser
- Advanced Thin Film Technology Division, Institute of Materials Science, Technische Universität Darmstadt, Darmstadt, Germany
| | - T Vogel
- Advanced Thin Film Technology Division, Institute of Materials Science, Technische Universität Darmstadt, Darmstadt, Germany
| | - S Petzold
- Advanced Thin Film Technology Division, Institute of Materials Science, Technische Universität Darmstadt, Darmstadt, Germany
| | - J Gehrunger
- Computer Systems Group, Department of Electrical Engineering and Information Technology, Technische Universität Darmstadt, Darmstadt, Germany
| | - C Hochberger
- Computer Systems Group, Department of Electrical Engineering and Information Technology, Technische Universität Darmstadt, Darmstadt, Germany
| | - T Oster
- Integrated Electronic Systems Lab, Department of Electrical Engineering and Information Technology, Technische Universität Darmstadt, Darmstadt, Germany
| | - K Hofmann
- Integrated Electronic Systems Lab, Department of Electrical Engineering and Information Technology, Technische Universität Darmstadt, Darmstadt, Germany
| | - J Suñé
- Departament d'Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Valles, Spain
| | - E Miranda
- Departament d'Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Valles, Spain
| | - L Alff
- Advanced Thin Film Technology Division, Institute of Materials Science, Technische Universität Darmstadt, Darmstadt, Germany
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Hoffman WR, Patel PK, Aden J, Willis A, Acker JP, Bjerke E, Miranda E, Luster J, Tvaryanas A. Multinational comparison study of aircraft pilot healthcare avoidance behaviour. Occup Med (Lond) 2023; 73:434-438. [PMID: 37658781 DOI: 10.1093/occmed/kqad091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND US and Canadian pilots are required to meet medical standards to secure their active flying status, but a subgroup exhibit healthcare avoidance behaviour due to fear of loss of that status. This phenomenon has the potential to impact pilot health, aeromedical screening and aviation safety. No international comparison study of pilot healthcare avoidance currently exists between US and Canadian pilots. AIMS To compare the rate and subtypes of healthcare avoidance behaviour secondary to fear for loss of flying status between US and Canadian pilots. METHODS A comparison analysis of data collected during two independent, non-probabilistic, cross-sectional internet surveys including any individual certified to perform flying duties in the USA (US survey) or Canada (Canadian survey). RESULTS There were 4320 US pilots and 1415 Canadian pilots who completed informed consent and 3765 US pilots and 1405 Canadian pilots were included in the results. There were 56% of US pilots who reported a history of healthcare avoidance behaviour compared to 55% of Canadian pilots (P = 0.578). A multivariable logistic regression that included age, pilot type and gender showed that US pilots were slightly more likely than Canadian pilots to report this behaviour (odds ratio 1.22, 95% confidence interval 1.06-1.4). CONCLUSIONS Healthcare avoidance behaviour due to fear of loss of flying status has a relatively high prevalence in both US and Canadian pilot populations.
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Affiliation(s)
- W R Hoffman
- Department of Neurology, Brooke Army Medical Center, Fort Sam Houston, TX, 78234USA
- Department of Aerospace Science, University of North Dakota, Grand Forks, ND, 58202USA
| | - P K Patel
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1Canada
| | - J Aden
- Department of Graduate Medical Education, Brooke Army Medical Center, Fort Sam Houston, TX, 78234USA
| | - A Willis
- Department of Neurology, Brooke Army Medical Center, Fort Sam Houston, TX, 78234USA
| | - J P Acker
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, T6G 2R3Canada
- Innovation and Portfolio Management, Canadian Blood Services, Edmonton, AB, T6G 2R8Canada
| | - E Bjerke
- Department of Aerospace Science, University of North Dakota, Grand Forks, ND, 58202USA
| | - E Miranda
- Department of Neurology, Brooke Army Medical Center, Fort Sam Houston, TX, 78234USA
| | - J Luster
- Department of Neurology, Brooke Army Medical Center, Fort Sam Houston, TX, 78234USA
| | - A Tvaryanas
- Civil Aerospace Medical Institute, Federal Aviation Administration, Oklahoma City, OK, 73169USA
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Murhula G, Zeng F, Bugeme P, Cibogo N, Cikomola F, Miranda E, Pompermaier L. Sex-Related Mortality After Burns: A Scoping Review in the Sadc-Region. Ann Burns Fire Disasters 2023; 36:111-119. [PMID: 38681941 PMCID: PMC11042070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 01/13/2022] [Indexed: 05/01/2024]
Abstract
Findings on mortality by sex after burns in low- and middle-income countries (LMICs) are contradictory and, where differences have been described, the reasons are often based on speculation and not on the analysis of factors that could have affected the outcome, such as patient or injury characteristics or provided care. Since the paucity of studies on burns from single LMICs is notorious, merging data from neighboring countries with similar socio-economic backgrounds might provide a larger dataset, contributing to identifying recurrent causes. This scoping review aimed therefore to analyze differences in mortality after burns between the sexes, as well as to identify aspects that could explain possible differences, in countries belonging to the South African Development Community (SADC) region. Studies in English published between 2010 and 2020 were identified according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines by searching PubMed and/or Medline, Clinical Trials and Cochrane Library, and using the screening tool "Covidence". The 13 included studies could not consistently show association between sex and mortality after burns, but contradictory findings. In the case of differences in outcome between the sexes, explanations were mainly based on speculation (e.g., hormonal differences, self-harm intention), while rarely burn specific factors were reported and included in the analysis of the mortality risk. This study indicates the need for prospective burn specific data collection in LMICs that would contribute to identifying factors associated with death.
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Affiliation(s)
- G.B. Murhula
- Université Catholique de Bukavu, Bukavu, Democratic Republic of Congo
| | - F.T.A. Zeng
- Université de Lubumbashi, Democratic Republic of Congo
| | - P.M. Bugeme
- Université Catholique de Bukavu, Bukavu, Democratic Republic of Congo
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - N. Cibogo
- Université Officielle de Bukavu, Bukavu, Democratic Republic of Congo
| | - F.G. Cikomola
- Université Catholique de Bukavu, Bukavu, Democratic Republic of Congo
- Hôpital Général Provincial de Référence de Bukavu, Bukavu, Democratic Republic of Congo
| | - E. Miranda
- University of Southern California, Los Angeles, California, USA
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Chiattone C, Miranda E, Gonzaga Y, Dias M, Salvino MA, Baptista RLR, Bortucchi D, Christofoletti T, Duffles G, Bellesso M, Pereira J, Brasil SAB, Castro NS, Cecyn KZ, Schaffel R, Tavares JV, Figueiredo VLP, Nogueira FL, Silva NAHL, Silva GF, Cunha-Junior AD, Gaiolla R, Duarte FB, Souza RR, Hallack-Neto A, Cordeiro A, Rabelo YS, Delamain MT, Federico M, Souza CA. A PREVENÇÃO DEVE SER A MELHOR ESTRATÉGIA PARA ENFRENTAR A LEUCEMIA/LINFOMA DE CÉLULAS-T DE ADULTO DO PROJETO T-CELL BRASIL. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Chiattone CS, Miranda E, Pereira J, Cecyn KZ, Castro NS, Brasil SAB, Farias DFC, Bellesso M, Duffles G, Borducchi D, Gonzaga Y, Baptista RLR, Vilarim CC, Macedo CCG, Dias M, Salvino MA, Tavares JV, Nabhan S, Cunha-Junior AD, Zing N, Silva GF, Ribeiro GN, Negreiros E, Schaffel R, Figueiredo VLP, Souto-Filho JTD, Radtke PPG, Pont MD, Nogueira FL, Hamerschlak N, Cle DV, Gaiolla R, Duarte FB, Souza RR, Mo S, Hallack-Neto A, Rabelo YS, Ribeiro EFO, Cordeiro A, Perini G, Bueno ND, Matedi MAL, Cury P, Delamain MT, Federico M, Souza CA. PROJETO T-CELL BRASIL: ATUALIZAÇÃO DO PROJETO PIONEIRO DE COLETA DE DADOS DE PACIENTES COM LNH DE CÉLULAS T NAS CINCO REGIÕES BRASILEIRAS. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Lage LAPC, Machado PPF, Reichert CO, Miranda E, Culler HF, Souza CA, Federico M, Rocha V, Pereira J, Chiattone CS. CLINICAL OUTCOMES, PROGNOSTIC FACTORS AND THERAPEUTIC MANAGEMENT IN EXTRANODAL NATURAL-KILLER/T-CELL LYMPHOMA, NASAL-TYPE (ENKTL-NT) – RESULTS OF THE MULTICENTER T-CELL BRAZIL PROJECT. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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D'Acunto E, Gianfrancesco L, Serangeli I, D'Orsi M, Sabato V, Guadagno NA, Bhosale G, Caristi S, Failla AV, De Jaco A, Cacci E, Duchen MR, Lupo G, Galliciotti G, Miranda E. Polymerogenic neuroserpin causes mitochondrial alterations and activates NFκB but not the UPR in a neuronal model of neurodegeneration FENIB. Cell Mol Life Sci 2022; 79:437. [PMID: 35864382 PMCID: PMC9304071 DOI: 10.1007/s00018-022-04463-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/04/2022] [Revised: 06/10/2022] [Accepted: 07/02/2022] [Indexed: 12/02/2022]
Abstract
The neurodegenerative condition FENIB (familiar encephalopathy with neuroserpin inclusion bodies) is caused by heterozygous expression of polymerogenic mutant neuroserpin (NS), with polymer deposition within the endoplasmic reticulum (ER) of neurons. We generated transgenic neural progenitor cells (NPCs) from mouse fetal cerebral cortex stably expressing either the control protein GFP or human wild type, polymerogenic G392E or truncated (delta) NS. This cellular model makes it possible to study the toxicity of polymerogenic NS in the appropriated cell type by in vitro differentiation to neurons. Our previous work showed that expression of G392E NS in differentiated NPCs induced an adaptive response through the upregulation of several genes involved in the defence against oxidative stress, and that pharmacological reduction of the antioxidant defences by drug treatments rendered G392E NS neurons more susceptible to apoptosis than control neurons. In this study, we assessed mitochondrial distribution and found a higher percentage of perinuclear localisation in G392E NS neurons, particularly in those containing polymers, a phenotype that was enhanced by glutathione chelation and rescued by antioxidant molecules. Mitochondrial membrane potential and contact sites between mitochondria and the ER were reduced in neurons expressing the G392E mutation. These alterations were associated with a pattern of ER stress that involved the ER overload response but not the unfolded protein response. Our results suggest that intracellular accumulation of NS polymers affects the interaction between the ER and mitochondria, causing mitochondrial alterations that contribute to the neuronal degeneration seen in FENIB patients.
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Affiliation(s)
- E D'Acunto
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - L Gianfrancesco
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - I Serangeli
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - M D'Orsi
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - V Sabato
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - N A Guadagno
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - G Bhosale
- Department of Cell and Developmental Biology, University College London, London, UK
| | - S Caristi
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - A V Failla
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A De Jaco
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - E Cacci
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - M R Duchen
- Department of Cell and Developmental Biology, University College London, London, UK
| | - G Lupo
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
| | - G Galliciotti
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - E Miranda
- Department of Biology and Biotechnologies 'Charles Darwin', Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy.
- Pasteur Institute-Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
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Gimeno M, San José-Enériz E, Rubio A, Garate L, Miranda E, Castilla C, Agirre X, Prosper F, Carazo F. Identifying Lethal Dependencies with HUGE Predictive Power. Cancers (Basel) 2022; 14:cancers14133251. [PMID: 35805023 PMCID: PMC9264916 DOI: 10.3390/cancers14133251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 01/27/2023] Open
Abstract
Recent functional genomic screens—such as CRISPR-Cas9 or RNAi screening—have fostered a new wave of targeted treatments based on the concept of synthetic lethality. These approaches identified LEthal Dependencies (LEDs) by estimating the effect of genetic events on cell viability. The multiple-hypothesis problem is related to a large number of gene knockouts limiting the statistical power of these studies. Here, we show that predictions of LEDs from functional screens can be dramatically improved by incorporating the “HUb effect in Genetic Essentiality” (HUGE) of gene alterations. We analyze three recent genome-wide loss-of-function screens—Project Score, CERES score and DEMETER score—identifying LEDs with 75 times larger statistical power than using state-of-the-art methods. Using acute myeloid leukemia, breast cancer, lung adenocarcinoma and colon adenocarcinoma as disease models, we validate that our predictions are enriched in a recent harmonized knowledge base of clinical interpretations of somatic genomic variants in cancer (AUROC > 0.87). Our approach is effective even in tumors with large genetic heterogeneity such as acute myeloid leukemia, where we identified LEDs not recalled by previous pipelines, including FLT3-mutant genotypes sensitive to FLT3 inhibitors. Interestingly, in-vitro validations confirm lethal dependencies of either NRAS or PTPN11 depending on the NRAS mutational status. HUGE will hopefully help discover novel genetic dependencies amenable for precision-targeted therapies in cancer. All the graphs showing lethal dependencies for the 19 tumor types analyzed can be visualized in an interactive tool.
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Affiliation(s)
- Marian Gimeno
- Departamento de Ingeniería Biomédica y Ciencias, TECNUN, Universidad de Navarra, 20009 San Sebastian, Spain; (M.G.); (A.R.); (C.C.)
| | - Edurne San José-Enériz
- Programa Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, 31008 Pamplona, Spain; (E.S.J.-E.); (E.M.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
| | - Angel Rubio
- Departamento de Ingeniería Biomédica y Ciencias, TECNUN, Universidad de Navarra, 20009 San Sebastian, Spain; (M.G.); (A.R.); (C.C.)
- Instituto de Ciencia de los Datos e Inteligencia Artificial (DATAI), Universidad de Navarra, 31080 Pamplona, Spain
| | - Leire Garate
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
- Departamento de Hematología, Clínica Universidad de Navarra, Universidad de Navarra, 31008 Pamplona, Spain
| | - Estíbaliz Miranda
- Programa Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, 31008 Pamplona, Spain; (E.S.J.-E.); (E.M.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
| | - Carlos Castilla
- Departamento de Ingeniería Biomédica y Ciencias, TECNUN, Universidad de Navarra, 20009 San Sebastian, Spain; (M.G.); (A.R.); (C.C.)
| | - Xabier Agirre
- Programa Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, 31008 Pamplona, Spain; (E.S.J.-E.); (E.M.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
- Correspondence: (X.A.); (F.P.); (F.C.)
| | - Felipe Prosper
- Programa Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, 31008 Pamplona, Spain; (E.S.J.-E.); (E.M.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain;
- Departamento de Hematología, Clínica Universidad de Navarra, Universidad de Navarra, 31008 Pamplona, Spain
- Correspondence: (X.A.); (F.P.); (F.C.)
| | - Fernando Carazo
- Departamento de Ingeniería Biomédica y Ciencias, TECNUN, Universidad de Navarra, 20009 San Sebastian, Spain; (M.G.); (A.R.); (C.C.)
- Instituto de Ciencia de los Datos e Inteligencia Artificial (DATAI), Universidad de Navarra, 31080 Pamplona, Spain
- Correspondence: (X.A.); (F.P.); (F.C.)
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Amundarain A, Valcárcel LV, Ordoñez R, Garate L, Miranda E, Cendoya X, Carrasco‐Leon A, Calasanz MJ, Paiva B, Meydan C, Mason CE, Melnick A, Rodriguez‐Otero P, Martín‐Subero JI, San Miguel J, Planes FJ, Prósper F, Agirre X. Landscape and clinical significance of long noncoding RNAs involved in multiple myeloma expressed fusion transcripts. Am J Hematol 2022; 97:E113-E117. [PMID: 34961980 DOI: 10.1002/ajh.26450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/06/2021] [Accepted: 12/20/2021] [Indexed: 12/31/2022]
Affiliation(s)
- Ane Amundarain
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
| | - Luis V. Valcárcel
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Tecnun School of Engineering, Biomedical Engineering Center University of Navarra San Sebastian Spain
| | - Raquel Ordoñez
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
| | - Leire Garate
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
- Hematology Department, Clínica Universidad de Navarra University of Navarra Pamplona Spain
| | - Estíbaliz Miranda
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
| | - Xabier Cendoya
- Tecnun School of Engineering, Biomedical Engineering Center University of Navarra San Sebastian Spain
| | - Arantxa Carrasco‐Leon
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
| | - María José Calasanz
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
- CIMA LAB Diagnostics University of Navarra Pamplona Spain
| | - Bruno Paiva
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
- Hematology Department, Clínica Universidad de Navarra University of Navarra Pamplona Spain
- CIMA LAB Diagnostics University of Navarra Pamplona Spain
- Flow Cytometry Core, CIMA University of Navarra Pamplona Spain
| | - Cem Meydan
- Division of Hematology/Oncology, Department of Medicine Weill Cornell Medical College New York New York USA
- Department of Physiology and Biophysics Weill Cornell Medicine New York New York USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine Weill Cornell Medicine New York New York USA
| | - Christopher E. Mason
- Division of Hematology/Oncology, Department of Medicine Weill Cornell Medical College New York New York USA
- Department of Physiology and Biophysics Weill Cornell Medicine New York New York USA
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine Weill Cornell Medicine New York New York USA
| | - Ari Melnick
- Division of Hematology/Oncology, Department of Medicine Weill Cornell Medical College New York New York USA
| | - Paula Rodriguez‐Otero
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
- Hematology Department, Clínica Universidad de Navarra University of Navarra Pamplona Spain
| | - José I. Martín‐Subero
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
- Hospital Clínic de Barcelona and Departament de Fonaments Clínics, Facultat de Medicina Universitat de Barcelona Barcelona Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer IDIBAPS Barcelona Spain
- Institució Catalana de Recerca i Estudis Avançats ICREA Barcelona Spain
| | - Jesús San Miguel
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
- Hematology Department, Clínica Universidad de Navarra University of Navarra Pamplona Spain
| | - Francisco J. Planes
- Tecnun School of Engineering, Biomedical Engineering Center University of Navarra San Sebastian Spain
| | - Felipe Prósper
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
- Hematology Department, Clínica Universidad de Navarra University of Navarra Pamplona Spain
| | - Xabier Agirre
- Hemato‐Oncology Program, Center for Applied Medical Research (CIMA), IDISNA University of Navarra Pamplona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Pamplona Spain
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Rabal O, San José-Enériz E, Agirre X, Sánchez-Arias JA, de Miguel I, Ordoñez R, Garate L, Miranda E, Sáez E, Vilas-Zornoza A, Pineda-Lucena A, Estella A, Zhang F, Wu W, Xu M, Prosper F, Oyarzabal J. Design and Synthesis of Novel Epigenetic Inhibitors Targeting Histone Deacetylases, DNA Methyltransferase 1, and Lysine Methyltransferase G9a with In Vivo Efficacy in Multiple Myeloma. J Med Chem 2021; 64:3392-3426. [PMID: 33661013 DOI: 10.1021/acs.jmedchem.0c02255] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Concomitant inhibition of key epigenetic pathways involved in silencing tumor suppressor genes has been recognized as a promising strategy for cancer therapy. Herein, we report a first-in-class series of quinoline-based analogues that simultaneously inhibit histone deacetylases (from a low nanomolar range) and DNA methyltransferase-1 (from a mid-nanomolar range, IC50 < 200 nM). Additionally, lysine methyltransferase G9a inhibitory activity is achieved (from a low nanomolar range) by introduction of a key lysine mimic group at the 7-position of the quinoline ring. The corresponding epigenetic functional cellular responses are observed: histone-3 acetylation, DNA hypomethylation, and decreased histone-3 methylation at lysine-9. These chemical probes, multitarget epigenetic inhibitors, were validated against the multiple myeloma cell line MM1.S, demonstrating promising in vitro activity of 12a (CM-444) with GI50 of 32 nM, an adequate therapeutic window (>1 log unit), and a suitable pharmacokinetic profile. In vivo, 12a achieved significant antitumor efficacy in a xenograft mouse model of human multiple myeloma.
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Affiliation(s)
- Obdulia Rabal
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Edurne San José-Enériz
- Area de Hemato-Oncología, IDISNA, CIBERONC, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Xabier Agirre
- Area de Hemato-Oncología, IDISNA, CIBERONC, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Juan Antonio Sánchez-Arias
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Irene de Miguel
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Raquel Ordoñez
- Area de Hemato-Oncología, IDISNA, CIBERONC, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Leire Garate
- Area de Hemato-Oncología, IDISNA, CIBERONC, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Estíbaliz Miranda
- Area de Hemato-Oncología, IDISNA, CIBERONC, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Elena Sáez
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Amaia Vilas-Zornoza
- Area de Hemato-Oncología, IDISNA, CIBERONC, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Antonio Pineda-Lucena
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Ander Estella
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
| | - Feifei Zhang
- WuXi Apptec (Tianjin) Company Ltd., TEDA, No. 168 Nanhai Road, 10th Avenue, 300456 Tianjin, PR China
| | - Wei Wu
- WuXi Apptec (Tianjin) Company Ltd., TEDA, No. 168 Nanhai Road, 10th Avenue, 300456 Tianjin, PR China
| | - Musheng Xu
- WuXi Apptec (Tianjin) Company Ltd., TEDA, No. 168 Nanhai Road, 10th Avenue, 300456 Tianjin, PR China
| | - Felipe Prosper
- Area de Hemato-Oncología, IDISNA, CIBERONC, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
- Departmento de Hematología, Clínica Universidad de Navarra, University of Navarra, Avenida Pio XII 36, E-31008 Pamplona, Spain
| | - Julen Oyarzabal
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra, Avenida Pio XII 55, E-31008 Pamplona, Spain
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11
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Miranda E, Sousa LC, António CC, Castro CF, Pinto SIS. Role of the left coronary artery geometry configuration in atherosusceptibility: CFD simulations considering sPTT model for blood. Comput Methods Biomech Biomed Engin 2021; 24:1488-1503. [PMID: 33661071 DOI: 10.1080/10255842.2021.1894555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/14/2023]
Abstract
The achievement of clinically viable methodologies to simulate the hemodynamics in patient-specific coronary arteries is still a major challenge. Therefore, the novelty of this work is attained by the introduction of the viscoelastic property of blood in the numerical simulations, to study the role of the left coronary artery (LCA) geometry configuration in the atherosusceptibility. Apparently healthy patients were used and four different methodologies were tested. The methodology giving the most accurate results at the same time of having the lowest computational time is the one considering the viscoelastic property of blood and computational fluid dynamics. A Pearson correlation analysis was used to highlight relationships between geometric configuration and hemodynamic descriptors based on the simulated wall shear stress (WSS). The left main stem (LMS) has the greatest atherosusceptibility followed by the left anterior descending artery (LAD) since the relative residence time (RRT) average values are 3.81 and 3.70 Pa-1, respectively. The geometric parameters with relevant contribution to directional flow change are the cross-sectional areas, especially the one of LMS segment (ALMS), and the curvature of LMS segment. For LMS and LAD segments, when ALMS increases, blood flow disturbance (r = 0.81 in LMS and r = 0.74 in LAD) and atherosusceptibility (r = 0.84 in LMS and r = 0.85 in LAD) increases. When the LMS curvature decreases, the WSS magnitude (r = 0.80 in LMS and r = 0.83 in LAD) decreases, and disturbance (r=-0.80 in LMS and r=-0.91 in LAD) and atherosusceptibility (r=-0.74 in LMS and r=-0.74 in LAD) increases.
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Affiliation(s)
- E Miranda
- Engineering Faculty, University of Porto, Porto, Portugal
| | - L C Sousa
- Engineering Faculty, University of Porto, Porto, Portugal.,Institute of Science and Innovation in Mechanical and Industrial Engineering (LAETA-INEGI), Porto, Portugal
| | - C C António
- Engineering Faculty, University of Porto, Porto, Portugal.,Institute of Science and Innovation in Mechanical and Industrial Engineering (LAETA-INEGI), Porto, Portugal
| | - C F Castro
- Engineering Faculty, University of Porto, Porto, Portugal.,Institute of Science and Innovation in Mechanical and Industrial Engineering (LAETA-INEGI), Porto, Portugal
| | - S I S Pinto
- Engineering Faculty, University of Porto, Porto, Portugal.,Institute of Science and Innovation in Mechanical and Industrial Engineering (LAETA-INEGI), Porto, Portugal
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12
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Novaes M, Carvalho O, Tiraboschi T, Ferreira P, SilvaS C, Zambrano J, Ribeiro A, Gomes C, Miranda E, Bessa J. 079 A Random Forest Classifier for the Prediction of Testosterone Deficiency in the Community Setting. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Garrido-Hoyos S, Garcia K, Miranda E, López B, Briseño J. Kinetics and drainage index in function of pH, in the dewatering of arsenic iron sludge. Sci Total Environ 2020; 742:140251. [PMID: 32623155 DOI: 10.1016/j.scitotenv.2020.140251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 06/13/2020] [Accepted: 06/14/2020] [Indexed: 06/11/2023]
Abstract
Water for human consumption containing arsenic from natural and anthropogenic sources is a public health problem worldwide. Therefore, different technologies must be used to remove it from the water (coagulation-filtration assisted with ferric chloride, adsorption, membranes, etc.). While these technologies produce water that is free from arsenic, they also produce toxic residuals with high arsenic concentrations, which must be treated in order to decrease their volume and thereby facilitate transport and final disposal. Thus, the main purpose of this investigation was to study the physical and chemical properties of arsenic iron sludge in thickening, chemical conditioning, and dewatering processes, as well as to propose new kinetic criteria for obtaining the drainage index (Eg) based on polymer dose, mesh permeability, specific resistance to filtration, and pH. We found a significant improvement in the physical and chemical properties when thickening the sludge, in particular, floc size increased and specific resistance to filtration and Z-potential decreased due to weakened repulsive forces, resulting in more sedimentation. The polymer AN913VHM (PF2) had the best behavior in the chemical conditioning and dewatering tests, with an optimal dose of 8 mg/L and a mesh permeability of 80-100 ft3/min ft2, which made it possible to retain more flocs (60% in 3.74 min). The pH affected the amount of total solids in the cake, with more solids obtained at a pH of 6 (25.93 g/L) and 6.5 (21.81 g/L), and with rapid drainage of surface water (69.28%). Furthermore, new kinetic criteria were obtained for a drainage time of 120 s in order to eliminate 60% of the total volume of the filtrate mass, with Eg of 3.05 at a pH of 6. This value is considered medium drainage for this type of sludge, which is difficult to treat.
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Affiliation(s)
- S Garrido-Hoyos
- Instituto Mexicano de Tecnología del Agua (IMTA), Paseo Cuahnauhuac 8532, Jiutepec, Mor. 62550, Mexico.
| | - K Garcia
- Instituto Mexicano de Tecnología del Agua (IMTA), Paseo Cuahnauhuac 8532, Jiutepec, Mor. 62550, Mexico
| | - E Miranda
- Postgraduate Program in Master and Doctorate in Environmental Engineering, UNAM-IMTA, Morelos, Mexico
| | - B López
- Universidad Politécnica del Estado de Morelos (UPEMOR), Blvd. Paseo Cuauhnáhuac 566, Lomas del Texcal, Jiutepec, Mor. 62574, Mexico
| | - J Briseño
- Universidad Politécnica del Estado de Morelos (UPEMOR), Blvd. Paseo Cuauhnáhuac 566, Lomas del Texcal, Jiutepec, Mor. 62574, Mexico
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14
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Chiattone C, Delamain M, Miranda E, Castro N, Brasil S, Bellesso M, Pereira J, Cunha-Junior A, Gonzaga Y, Nabhan S, Ribeiro G, Lyrio R, Zing N, Carneiro T, Berg A, Nogueira D, Schaffel R, Cecyn K, Souto-Filho J, Hamerschlak N, Gaiolla R, Dias M, Pont M, Hallack-Neto A, Rabelo Y, Duarte F, Sousa R, Mo S, Silveira T, Cury P, Vassallo J, Federico M, Souza C. ATUALIZAÇÃO DO ESTUDO AMBISPECTIVO DO REGISTRO DE LINFOMA DE CÉLULAS-T, NAS CINCO MACRORREGIÕES BRASILEIRAS. Hematol Transfus Cell Ther 2020. [DOI: 10.1016/j.htct.2020.10.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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15
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Ordoñez R, Kulis M, Russiñol N, Chapaprieta V, Carrasco-Leon A, García-Torre B, Charalampopoulou S, Clot G, Beekman R, Meydan C, Duran-Ferrer M, Verdaguer-Dot N, Vilarrasa-Blasi R, Soler-Vila P, Garate L, Miranda E, San José-Enériz E, Rodriguez-Madoz JR, Ezponda T, Martínez-Turrilas R, Vilas-Zornoza A, Lara-Astiaso D, Dupéré-Richer D, Martens JHA, El-Omri H, Taha RY, Calasanz MJ, Paiva B, San Miguel J, Flicek P, Gut I, Melnick A, Mitsiades CS, Licht JD, Campo E, Stunnenberg HG, Agirre X, Prosper F, Martin-Subero JI. Chromatin activation as a unifying principle underlying pathogenic mechanisms in multiple myeloma. Genome Res 2020; 30:1217-1227. [PMID: 32820006 PMCID: PMC7545147 DOI: 10.1101/gr.265520.120] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023]
Abstract
Multiple myeloma (MM) is a plasma cell neoplasm associated with a broad variety of genetic lesions. In spite of this genetic heterogeneity, MMs share a characteristic malignant phenotype whose underlying molecular basis remains poorly characterized. In the present study, we examined plasma cells from MM using a multi-epigenomics approach and demonstrated that, when compared to normal B cells, malignant plasma cells showed an extensive activation of regulatory elements, in part affecting coregulated adjacent genes. Among target genes up-regulated by this process, we found members of the NOTCH, NF-kB, MTOR signaling, and TP53 signaling pathways. Other activated genes included sets involved in osteoblast differentiation and response to oxidative stress, all of which have been shown to be associated with the MM phenotype and clinical behavior. We functionally characterized MM-specific active distant enhancers controlling the expression of thioredoxin (TXN), a major regulator of cellular redox status and, in addition, identified PRDM5 as a novel essential gene for MM. Collectively, our data indicate that aberrant chromatin activation is a unifying feature underlying the malignant plasma cell phenotype.
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Affiliation(s)
- Raquel Ordoñez
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain
| | - Marta Kulis
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Nuria Russiñol
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
| | - Vicente Chapaprieta
- Departamento de Fundamentos Clínicos, Universitat de Barcelona, 08036 Barcelona, Spain
| | | | - Beatriz García-Torre
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | | | - Guillem Clot
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain.,Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Renée Beekman
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain.,Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Cem Meydan
- Division of Hematology/Oncology, Department of Medicine, Weill Cornell Medical College, New York, New York 10021, USA
| | - Martí Duran-Ferrer
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Núria Verdaguer-Dot
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Roser Vilarrasa-Blasi
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Paula Soler-Vila
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Leire Garate
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Estíbaliz Miranda
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain
| | - Edurne San José-Enériz
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain
| | | | - Teresa Ezponda
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain
| | | | - Amaia Vilas-Zornoza
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain
| | - David Lara-Astiaso
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain
| | - Daphné Dupéré-Richer
- Division of Hematology/Oncology, University of Florida Health Cancer Center, Gainesville, Florida 32610, USA
| | - Joost H A Martens
- Radboud Institute for Molecular Life Sciences, 6525 GA Nijmegen, Netherlands
| | - Halima El-Omri
- Department of Hematology & BMT, Hamad Medical Corporation, NCCCR, Doha, Qatar
| | - Ruba Y Taha
- Department of Hematology & BMT, Hamad Medical Corporation, NCCCR, Doha, Qatar
| | - Maria J Calasanz
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain
| | - Bruno Paiva
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain.,Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Jesus San Miguel
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain.,Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Paul Flicek
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton CB10 1SD, United Kingdom
| | - Ivo Gut
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
| | - Ari Melnick
- Division of Hematology/Oncology, Department of Medicine, Weill Cornell Medical College, New York, New York 10021, USA
| | - Constantine S Mitsiades
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Jonathan D Licht
- Division of Hematology/Oncology, University of Florida Health Cancer Center, Gainesville, Florida 32610, USA
| | - Elias Campo
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain.,Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain.,Departamento de Fundamentos Clínicos, Universitat de Barcelona, 08036 Barcelona, Spain
| | | | - Xabier Agirre
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain
| | - Felipe Prosper
- Centro de Investigación Médica Aplicada (CIMA), IDISNA, 31008 Pamplona, Spain.,Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain.,Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Jose I Martin-Subero
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029 Madrid, Spain.,Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), 08036 Barcelona, Spain.,Departamento de Fundamentos Clínicos, Universitat de Barcelona, 08036 Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
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16
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Salter C, Nascimento B, Terrier J, Taniguchi H, Bernie H, Miranda E, Jenkins L, Schofield E, Mulhall J. 157 Defining the Impact of Peyronie's Disease on Psychosocial Status in Gay versus Heterosexual Men. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2019.11.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Segovia C, San José-Enériz E, Munera-Maravilla E, Martínez-Fernández M, Garate L, Miranda E, Vilas-Zornoza A, Lodewijk I, Rubio C, Segrelles C, Valcárcel LV, Rabal O, Casares N, Bernardini A, Suarez-Cabrera C, López-Calderón FF, Fortes P, Casado JA, Dueñas M, Villacampa F, Lasarte JJ, Guerrero-Ramos F, de Velasco G, Oyarzabal J, Castellano D, Agirre X, Prósper F, Paramio JM. Inhibition of a G9a/DNMT network triggers immune-mediated bladder cancer regression. Nat Med 2019; 25:1073-1081. [PMID: 31270502 DOI: 10.1038/s41591-019-0499-y] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 05/24/2019] [Indexed: 12/14/2022]
Abstract
Bladder cancer is lethal in its advanced, muscle-invasive phase with very limited therapeutic advances1,2. Recent molecular characterization has defined new (epi)genetic drivers and potential targets for bladder cancer3,4. The immune checkpoint inhibitors have shown remarkable efficacy but only in a limited fraction of bladder cancer patients5-8. Here, we show that high G9a (EHMT2) expression is associated with poor clinical outcome in bladder cancer and that targeting G9a/DNMT methyltransferase activity with a novel inhibitor (CM-272) induces apoptosis and immunogenic cell death. Using an immunocompetent quadruple-knockout (PtenloxP/loxP; Trp53loxP/loxP; Rb1loxP/loxP; Rbl1-/-) transgenic mouse model of aggressive metastatic, muscle-invasive bladder cancer, we demonstrate that CM-272 + cisplatin treatment results in statistically significant regression of established tumors and metastases. The antitumor effect is significantly improved when CM-272 is combined with anti-programmed cell death ligand 1, even in the absence of cisplatin. These effects are associated with an endogenous antitumor immune response and immunogenic cell death with the conversion of a cold immune tumor into a hot tumor. Finally, increased G9a expression was associated with resistance to programmed cell death protein 1 inhibition in a cohort of patients with bladder cancer. In summary, these findings support new and promising opportunities for the treatment of bladder cancer using a combination of epigenetic inhibitors and immune checkpoint blockade.
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Affiliation(s)
- Cristina Segovia
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain
| | - Edurne San José-Enériz
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Hemato-oncology Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Ester Munera-Maravilla
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain
| | - Mónica Martínez-Fernández
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain.,Mobile Genomes and Disease Laboratory CIMUS, Universidad de Santiago de Compostela, La Coruña, Spain
| | - Leire Garate
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Hematology and Cell Therapy Department, Clínica Universidad de Navarra, Universidad de Navarra, Pamplona, Spain
| | - Estíbaliz Miranda
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Hemato-oncology Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Amaia Vilas-Zornoza
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Hemato-oncology Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | | | - Carolina Rubio
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain
| | - Carmen Segrelles
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain
| | - Luis Vitores Valcárcel
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Hemato-oncology Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain.,TECNUN, University of Navarra, San Sebastián, Spain
| | - Obdulia Rabal
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Centro de Investigación Médica Aplicada, Universidad de Navarra, Pamplona, Spain
| | - Noelia Casares
- Immunology and Immunotherapy Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Alejandra Bernardini
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain
| | | | - Fernando F López-Calderón
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain
| | - Puri Fortes
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - José A Casado
- Division of Hematopoietic Innovative Therapies (CIEMAT), Centro de Investigación Biomédica en Red de Enfermedades Raras and Advanced Therapies Unit, Instituto de Investigación Sanitaria Fundación Jiménez Díaz, Madrid, Spain
| | - Marta Dueñas
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain
| | - Felipe Villacampa
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain
| | - Juan José Lasarte
- Immunology and Immunotherapy Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Félix Guerrero-Ramos
- Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain.,Urology Department, University Hospital '12 de Octubre', Madrid, Spain
| | - Guillermo de Velasco
- Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain.,Medical Oncology Department, University Hospital '12 de Octubre', Madrid, Spain
| | - Julen Oyarzabal
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Centro de Investigación Médica Aplicada, Universidad de Navarra, Pamplona, Spain
| | - Daniel Castellano
- Molecular Oncology Unit CIEMAT, Madrid, Spain.,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.,Medical Oncology Department, University Hospital '12 de Octubre', Madrid, Spain
| | - Xabier Agirre
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain. .,Hemato-oncology Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain.
| | - Felipe Prósper
- Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain. .,Hemato-oncology Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain. .,Hematology and Cell Therapy Department, Clínica Universidad de Navarra, Universidad de Navarra, Pamplona, Spain.
| | - Jesús M Paramio
- Molecular Oncology Unit CIEMAT, Madrid, Spain. .,Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain. .,Institute of Biomedical Research, University Hospital '12 de Octubre', Madrid, Spain.
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Bernie H, Nascimento B, Miranda E, Schofield E, Zajichek A, Kattan M, Mulhall J. 156 Development of Nomograms to Predict Erectile Function After Radiation Therapy. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.01.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bernie H, Nascimento B, Miranda E, Tal R, Mulhall J. 286 Penile Girth Changes in Peyronie’s Disease: Impact on Stability and Bother. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.01.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bernie H, Nascimento B, Miranda E, Tin A, Benfante N, Carlsson S, Mulhal J. 125 The Relationship Between PSA and Total Testosterone Levels in Men with Low, Intermediate and High Grade Prostate Cancer. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.01.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Resalt-Pereira M, Muñoz JL, Miranda E, Cuquerella V, Pérez A. Goal-directed fluid therapy on laparoscopic colorectal surgery within enhanced recovery after surgery program. ACTA ACUST UNITED AC 2019; 66:259-266. [PMID: 30862401 DOI: 10.1016/j.redar.2019.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Enhanced recovery after surgery protocols (ERAS) are used in peri-operative care to reduce the stress response to surgical aggression. As fluid overload has been associated with increased morbidity and delayed hospital discharge, a major aspect of this is fluid management. Intra-operative goal-directed fluid protocols have been shown to reduce post-operative complications, particularly in high risk patients.?. OBJECTIVE To compare 2fluid therapy models (zero-balance versus goal-directed fluid therapy) in patients who were scheduled for laparoscopic colorectal surgery within an ERAS program, recording the rate of complications such as surgical site infection, ileus, post-operative náusea and vomiting, and variability of the estimated glomerular filtration rate (eGFR). MATERIALS AND METHODS An observational, retrospective study was conducted including adults who were scheduled for elective laparoscopic colorectal surgery within an ERAS program, and to investigate the postoperative complication rate. RESULTS A total of 128 patients were included in this study; 43 (33.6%) in the zero-balance group and 85 (66.4%) in the goal-directed fluid therapy group. The total fluids administered was lower in the goal-directed fluid therapy group, as well as the incidence of post-operative complications (surgical site infection, anastomotic leak, ileus, and postoperative náusea and vomiting). No significant differences were found for length of stay, intra-operative urine output, and variability of the eGFR.?. CONCLUSION The results of this study show that by using a goal-directed fluid therapy algorithm, the total amount of fluids administered can be reduced, as well as obtaining a lower incidence of post-operative complications.
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Affiliation(s)
- M Resalt-Pereira
- Departamento de Anestesiología, Reanimación y Terapéutica de Dolor, Hospital General Universitario de Elche, Camí de l'Almazara 11, CP 03203 Elche, Alicante, España.
| | - J L Muñoz
- Departamento de Anestesiología, Reanimación y Terapéutica de Dolor, Hospital General Universitario de Elche, Camí de l'Almazara 11, CP 03203 Elche, Alicante, España
| | - E Miranda
- Departamento de Anestesiología, Reanimación y Terapéutica de Dolor, Hospital General Universitario de Elche, Camí de l'Almazara 11, CP 03203 Elche, Alicante, España
| | - V Cuquerella
- Departamento de Anestesiología, Reanimación y Terapéutica de Dolor, Hospital General Universitario de Elche, Camí de l'Almazara 11, CP 03203 Elche, Alicante, España
| | - A Pérez
- Departamento de Anestesiología, Reanimación y Terapéutica de Dolor, Hospital General Universitario de Elche, Camí de l'Almazara 11, CP 03203 Elche, Alicante, España
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Martínez-Calle N, Pascual M, Ordoñez R, Enériz ESJ, Kulis M, Miranda E, Guruceaga E, Segura V, Larráyoz MJ, Bellosillo B, Calasanz MJ, Besses C, Rifón J, Martín-Subero JI, Agirre X, Prosper F. Epigenomic profiling of myelofibrosis reveals widespread DNA methylation changes in enhancer elements and ZFP36L1 as a potential tumor suppressor gene that is epigenetically regulated. Haematologica 2019; 104:1572-1579. [PMID: 30655376 PMCID: PMC6669145 DOI: 10.3324/haematol.2018.204917] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 01/15/2019] [Indexed: 12/19/2022] Open
Abstract
In this study we interrogated the DNA methylome of myelofibrosis patients using high-density DNA methylation arrays. We detected 35,215 differentially methylated CpG, corresponding to 10,253 genes, between myelofibrosis patients and healthy controls. These changes were present both in primary and secondary myelofibrosis, which showed no differences between them. Remarkably, most differentially methylated CpG were located outside gene promoter regions and showed significant association with enhancer regions. This aberrant enhancer hypermethylation was negatively correlated with the expression of 27 genes in the myelofibrosis cohort. Of these, we focused on the ZFP36L1 gene and validated its decreased expression and enhancer DNA hypermethylation in an independent cohort of patients and myeloid cell-lines. In vitro reporter assay and 5’-azacitidine treatment confirmed the functional relevance of hyper-methylation of ZFP36L1 enhancer. Furthermore, in vitro rescue of ZFP36L1 expression had an impact on cell proliferation and induced apoptosis in SET-2 cell line indicating a possible role of ZFP36L1 as a tumor suppressor gene in myelofibrosis. Collectively, we describe the DNA methylation profile of myelofibrosis, identifying extensive changes in enhancer elements and revealing ZFP36L1 as a novel candidate tumor suppressor gene.
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Affiliation(s)
- Nicolás Martínez-Calle
- Área de Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid
| | - Marien Pascual
- Área de Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid
| | - Raquel Ordoñez
- Área de Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid
| | - Edurne San José Enériz
- Área de Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid
| | - Marta Kulis
- Fundació Clínic per a la Recerca Biomèdica, Barcelona
| | - Estíbaliz Miranda
- Área de Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid
| | - Elisabeth Guruceaga
- Unidad de Bioinformática, Centro de Investigación Médica Aplicada, Universidad de Navarra, Pamplona
| | - Víctor Segura
- Unidad de Bioinformática, Centro de Investigación Médica Aplicada, Universidad de Navarra, Pamplona
| | | | | | - María José Calasanz
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid.,CIMA Laboratory of Diagnostics, Universidad de Navarra, Pamplona
| | - Carles Besses
- Departmento de Hematología, Hospital del Mar, Barcelona
| | - José Rifón
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid.,Departamento de Hematología, Clínica Universidad de Navarra, Universidad de Navarra, Pamplona
| | - José I Martín-Subero
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona.,Departament de Fonaments Clinics, Facultat de Medicina, Universitat de Barcelona, Barcelona, Spain
| | - Xabier Agirre
- Área de Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona .,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid
| | - Felipe Prosper
- Área de Hemato-Oncología, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona .,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid.,Departamento de Hematología, Clínica Universidad de Navarra, Universidad de Navarra, Pamplona
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Bouloc D, Miranda E, Zung NT. Singular fibres of the Gelfand-Cetlin system on 𝔲( n). Philos Trans A Math Phys Eng Sci 2018; 376:20170423. [PMID: 30224415 PMCID: PMC6158383 DOI: 10.1098/rsta.2017.0423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/30/2018] [Indexed: 06/08/2023]
Abstract
In this paper, we show that every singular fibre of the Gelfand-Cetlin system on co-adjoint orbits of unitary groups is a smooth isotropic submanifold which is diffeomorphic to a two-stage quotient of a compact Lie group by free actions of two other compact Lie groups. In many cases, these singular fibres can be shown to be homogeneous spaces or even diffeomorphic to compact Lie groups. We also give a combinatorial formula for computing the dimensions of all singular fibres, and give a detailed description of these singular fibres in many cases, including the so-called (multi-)diamond singularities. These (multi-)diamond singular fibres are degenerate for the Gelfand-Cetlin system, but they are Lagrangian submanifolds diffeomorphic to direct products of special unitary groups and tori. Our methods of study are based on different ideas involving complex ellipsoids, Lie groupoids and also general ideas coming from the theory of singularities of integrable Hamiltonian systems.This article is part of the theme issue 'Finite dimensional integrable systems: new trends and methods'.
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Affiliation(s)
- D Bouloc
- Institut de Mathématiques de Toulouse, UMR5219, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse, France
| | - E Miranda
- Laboratory of Geometry and Dynamical Systems-EPSEB, Department of Mathematics-UPC and BGSMath, Universitat Politècnica de Catalunya, Avinguda del Doctor Marañon 44-50, 08028 Barcelona, Spain
- IMCCE, CNRS-UMR8028, Observatoire de Paris, PSL University, Sorbonne Université, 77 Avenue Denfert-Rochereau, 75014 Paris, France
| | - N T Zung
- Institut de Mathématiques de Toulouse, UMR5219, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse, France
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Trobiani L, Favaloro FL, Di Castro MA, Di Mattia M, Cariello M, Miranda E, Canterini S, De Stefano ME, Comoletti D, Limatola C, De Jaco A. UPR activation specifically modulates glutamate neurotransmission in the cerebellum of a mouse model of autism. Neurobiol Dis 2018; 120:139-150. [PMID: 30201312 DOI: 10.1016/j.nbd.2018.08.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 08/01/2018] [Accepted: 08/30/2018] [Indexed: 12/13/2022] Open
Abstract
An increasing number of rare mutations linked to autism spectrum disorders have been reported in genes encoding for proteins involved in synapse formation and maintenance, such as the post-synaptic cell adhesion proteins neuroligins. Most of the autism-linked mutations in the neuroligin genes map on the extracellular protein domain. The autism-linked substitution R451C in Neuroligin3 (NLGN3) induces a local misfolding of the extracellular domain, causing defective trafficking and retention of the mutant protein in the endoplasmic reticulum (ER). The activation of the unfolded protein response (UPR), due to misfolded proteins accumulating in the ER, has been implicated in pathological and physiological conditions of the nervous system. It was previously shown that the over-expression of R451C NLGN3 in a cellular system leads to the activation of the UPR. Here, we have investigated whether this protective cellular response is detectable in the knock-in mouse model of autism endogenously expressing R451C NLGN3. Our data showed up-regulation of UPR markers uniquely in the cerebellum of the R451C mice compared to WT littermates, at both embryonic and adult stages, but not in other brain regions. Miniature excitatory currents in the Purkinje cells of the R451C mice showed higher frequency than in the WT, which was rescued inhibiting the PERK branch of UPR. Taken together, our data indicate that the R451C mutation in neuroligin3 elicits UPR in vivo, which appears to trigger alterations of synaptic function in the cerebellum of a mouse model expressing the R451C autism-linked mutation.
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Affiliation(s)
- L Trobiani
- Department Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Center for Research in Neurobiology 'Daniel Bovet', 00185 Rome, Italy
| | - F L Favaloro
- Department Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Center for Research in Neurobiology 'Daniel Bovet', 00185 Rome, Italy
| | - M A Di Castro
- Department of Physiology and Pharmacology, Sapienza University of Rome, 00185 Rome, Italy
| | - M Di Mattia
- Department Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Center for Research in Neurobiology 'Daniel Bovet', 00185 Rome, Italy
| | - M Cariello
- Department Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Center for Research in Neurobiology 'Daniel Bovet', 00185 Rome, Italy
| | - E Miranda
- Department Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Center for Research in Neurobiology 'Daniel Bovet', 00185 Rome, Italy.; Istituto Pasteur Italia-Fondazione Cenci-Bolognetti, Italy
| | - S Canterini
- Department of Psychology, Section of Neuroscience, Center for Research in Neurobiology 'Daniel Bovet', Sapienza University of Rome, 00185 Rome, Italy
| | - M E De Stefano
- Department Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Center for Research in Neurobiology 'Daniel Bovet', 00185 Rome, Italy
| | - D Comoletti
- Department of Neuroscience and Cell Biology, Department of Pediatrics, Child Health Institute of New Jersey, Rutgers, Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - C Limatola
- Department of Physiology and Pharmacology, Sapienza University of Rome, 00185 Rome, Italy.; Istituto Pasteur Italia-Fondazione Cenci-Bolognetti, Italy.; IRCCS Neuromed, Pozzilli (IS), Italy
| | - A De Jaco
- Department Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Center for Research in Neurobiology 'Daniel Bovet', 00185 Rome, Italy..
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Rabal O, San José-Enériz E, Agirre X, Sánchez-Arias JA, Vilas-Zornoza A, Ugarte A, de Miguel I, Miranda E, Garate L, Fraga M, Santamarina P, Fernandez Perez R, Ordoñez R, Sáez E, Roa S, García-Barchino MJ, Martínez-Climent JA, Liu Y, Wu W, Xu M, Prosper F, Oyarzabal J. Discovery of Reversible DNA Methyltransferase and Lysine Methyltransferase G9a Inhibitors with Antitumoral in Vivo Efficacy. J Med Chem 2018; 61:6518-6545. [PMID: 29953809 DOI: 10.1021/acs.jmedchem.7b01926] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Using knowledge- and structure-based approaches, we designed and synthesized reversible chemical probes that simultaneously inhibit the activity of two epigenetic targets, histone 3 lysine 9 methyltransferase (G9a) and DNA methyltransferases (DNMT), at nanomolar ranges. Enzymatic competition assays confirmed our design strategy: substrate competitive inhibitors. Next, an initial exploration around our hit 11 was pursued to identify an adequate tool compound for in vivo testing. In vitro treatment of different hematological neoplasia cell lines led to the identification of molecules with clear antiproliferative efficacies (GI50 values in the nanomolar range). On the basis of epigenetic functional cellular responses (levels of lysine 9 methylation and 5-methylcytosine), an acceptable therapeutic window (around 1 log unit) and a suitable pharmacokinetic profile, 12 was selected for in vivo proof-of-concept ( Nat. Commun. 2017 , 8 , 15424 ). Herein, 12 achieved a significant in vivo efficacy: 70% overall tumor growth inhibition of a human acute myeloid leukemia (AML) xenograft in a mouse model.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Mario Fraga
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC) , Universidad de Oviedo-Principado de Asturias , Avenida de la Vega, 4-6 , 33940 El Entrego , Spain
| | - Pablo Santamarina
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC) , Universidad de Oviedo-Principado de Asturias , Avenida de la Vega, 4-6 , 33940 El Entrego , Spain
| | - Raul Fernandez Perez
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC) , Universidad de Oviedo-Principado de Asturias , Avenida de la Vega, 4-6 , 33940 El Entrego , Spain
| | | | | | | | | | | | - Yingying Liu
- WuXi Apptec (Tianjin) Co. Ltd., TEDA , No. 111 HuangHai Road, Fourth Avenue , Tianjin 300456 , PR China
| | - Wei Wu
- WuXi Apptec (Tianjin) Co. Ltd., TEDA , No. 111 HuangHai Road, Fourth Avenue , Tianjin 300456 , PR China
| | - Musheng Xu
- WuXi Apptec (Tianjin) Co. Ltd., TEDA , No. 111 HuangHai Road, Fourth Avenue , Tianjin 300456 , PR China
| | - Felipe Prosper
- Departmento de Hematología, Clinica Universidad de Navarra , University of Navarra , Avenida Pio XII 36 , E-31008 Pamplona , Spain
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Bernie H, Miranda E, Terrier J, Nelson C, Mulhall J. 085 Low PSA level in men diagnosed with prostate cancer predicts testosterone deficiency (TD). J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Teloken P, Miranda E, Kagacan C, Deveci S, Mulhall J. 210 The Safety and Outcomes of Penile Implant Surgery in the Elderly Population. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2017.11.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Levey Bernie H, Kagacan C, Miranda E, Jenkins L, Tal R, Mulhall J. 180 Increased Orgasmic Intensity After Radical Prostatectomy: Prevalence And Predictors. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2017.11.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bach P, Miranda E, Nascimento B, Nelson C, Mulhall J. 325 Correlation Between Penile Deformity, Patient Bother, and Perceived Partner Bother in Men with Peyronie's Disease. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2017.11.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Terrier JE, Valencia LF, Orkisz M, Nelson C, Journel NM, Miranda E, Mulhall J. Utilisation d’un nouveau logiciel informatique pour l’évaluation de la courbure dans la maladie de Lapeyronie : l’étude GOSOFT. Prog Urol 2017. [DOI: 10.1016/j.purol.2017.07.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Apaolaza I, San José-Eneriz E, Tobalina L, Miranda E, Garate L, Agirre X, Prósper F, Planes FJ. An in-silico approach to predict and exploit synthetic lethality in cancer metabolism. Nat Commun 2017; 8:459. [PMID: 28878380 PMCID: PMC5587678 DOI: 10.1038/s41467-017-00555-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 07/07/2017] [Indexed: 02/02/2023] Open
Abstract
Synthetic lethality is a promising concept in cancer research, potentially opening new possibilities for the development of more effective and selective treatments. Here, we present a computational method to predict and exploit synthetic lethality in cancer metabolism. Our approach relies on the concept of genetic minimal cut sets and gene expression data, demonstrating a superior performance to previous approaches predicting metabolic vulnerabilities in cancer. Our genetic minimal cut set computational framework is applied to evaluate the lethality of ribonucleotide reductase catalytic subunit M1 (RRM1) inhibition in multiple myeloma. We present a computational and experimental study of the effect of RRM1 inhibition in four multiple myeloma cell lines. In addition, using publicly available genome-scale loss-of-function screens, a possible mechanism by which the inhibition of RRM1 is effective in cancer is established. Overall, our approach shows promising results and lays the foundation to build a novel family of algorithms to target metabolism in cancer. Exploiting synthetic lethality is a promising approach for cancer therapy. Here, the authors present an approach to identifying such interactions by finding genetic minimal cut sets (gMCSs) that block cancer proliferation, and apply it to study the lethality of RRM1 inhibition in multiple myeloma.
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Affiliation(s)
- Iñigo Apaolaza
- CEIT and Tecnun, University of Navarra, Manuel de Lardizábal 13, 20018, San Sebastián, Spain
| | - Edurne San José-Eneriz
- Area de Hemato-Oncología, IDISNA, Ciberonc, Centro de Investigación Médica Aplicada (CIMA), University of Navarra, Pío XII 55, 31008, Pamplona, Spain
| | - Luis Tobalina
- CEIT and Tecnun, University of Navarra, Manuel de Lardizábal 13, 20018, San Sebastián, Spain.,Faculty of Medicine, Joint Research Centre for Computational Biomedicine, RWTH Aachen University, MTI2 Wendlingweg 2, D-52074, Aachen, Germany
| | - Estíbaliz Miranda
- Area de Hemato-Oncología, IDISNA, Ciberonc, Centro de Investigación Médica Aplicada (CIMA), University of Navarra, Pío XII 55, 31008, Pamplona, Spain
| | - Leire Garate
- Area de Hemato-Oncología, IDISNA, Ciberonc, Centro de Investigación Médica Aplicada (CIMA), University of Navarra, Pío XII 55, 31008, Pamplona, Spain
| | - Xabier Agirre
- Area de Hemato-Oncología, IDISNA, Ciberonc, Centro de Investigación Médica Aplicada (CIMA), University of Navarra, Pío XII 55, 31008, Pamplona, Spain
| | - Felipe Prósper
- Area de Hemato-Oncología, IDISNA, Ciberonc, Centro de Investigación Médica Aplicada (CIMA), University of Navarra, Pío XII 55, 31008, Pamplona, Spain.
| | - Francisco J Planes
- CEIT and Tecnun, University of Navarra, Manuel de Lardizábal 13, 20018, San Sebastián, Spain.
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Miranda E, Ortega Y, Deveci S, Jenkins L, Mulhall J. 196 Device Autoinflation Following Penile Implant Surgery. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Miranda E, Teloken P, Deveci S, Mulhall J. 257 Mechanical Malfunction Profiles in Men Undergoing 3 Piece Inflatable Penile Implants. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Miranda E, Ortega Y, Deveci S, Jenkins L, Mulhall J. 156 Device autoinflation following penile implant surgery. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Muñoz M, Miranda E, Sánchez PJ. A Fuzzy System for Estimating Premium Cost of Option Exchange Using Mamdani Inference: Derivatives Market of Mexico. INT J COMPUT INT SYS 2017. [DOI: 10.2991/ijcis.2017.10.1.11] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Abstract
Strongly correlated materials with strong spin-orbit coupling hold promise for realizing topological phases with fractionalized excitations. Here, we propose a chiral spin-orbital liquid as a stable phase of a realistic model for heavy-element double perovskites. This spin liquid state has Majorana fermion excitations with a gapless spectrum characterized by nodal lines along the edges of the Brillouin zone. We show that the nodal lines are topological defects of a non-Abelian Berry connection and that the system exhibits dispersing surface states. We discuss some experimental signatures of this state and compare them with properties of the spin liquid candidate Ba_{2}YMoO_{6}.
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Affiliation(s)
- W M H Natori
- Instituto de Física de São Carlos, Universidade de São Paulo, C.P. 369, São Carlos, São Paulo 13560-970, Brazil
| | - E C Andrade
- Instituto de Física de São Carlos, Universidade de São Paulo, C.P. 369, São Carlos, São Paulo 13560-970, Brazil
- Instituto de Física Teórica, Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz, 271-Bloco II, 01140-070 São Paulo, São Paulo, Brazil
| | - E Miranda
- Instituto de Física Gleb Wataghin, Unicamp, Rua Sérgio Buarque de Holanda, 777, CEP 13083-859 Campinas, São Paulo, Brazil
| | - R G Pereira
- Instituto de Física de São Carlos, Universidade de São Paulo, C.P. 369, São Carlos, São Paulo 13560-970, Brazil
- International Institute of Physics, Universidade Federal do Rio Grande do Norte, 59078-970 Natal-RN, Brazil and Departamento de Física Teórica e Experimental Experimental, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN, Brazil
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Miranda E, Tal R, Guhring P, Parker M, Mulhall J. 033 An Assessment Of The Impact Of Testosterone Supplementation Therapy On Hemoglobin A1C (HbA1C) Levels In Diabetic And Non-Diabetic Men. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.02.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Herrera F, Miranda E, Gómez E, Presa-Parra E, Lasa R. Comparison of Hydrolyzed Protein Baits and Various Grape Juice Products as Attractants for Anastrepha Fruit Flies (Diptera: Tephritidae). J Econ Entomol 2016; 109:161-166. [PMID: 26396199 DOI: 10.1093/jee/tov281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 09/01/2015] [Indexed: 06/05/2023]
Abstract
Mexican fruit flies, Anastrepha ludens (Loew; Diptera: Tephritidae), have traditionally been trapped in citrus orchards in Mexico using protein hydrolysates as bait. Recently, CeraTrap(®), an enzymatic hydrolyzed protein, has emerged as an effective lure for monitoring A. ludens at the orchard level and is currently being used by growers in the region of Veracruz. Several studies have revealed that grape juice is highly attractive to A. ludens, and recent work supports its potential use for regulation purposes. In our study, the attraction of A. ludens to different grape products was evaluated in citrus orchards and in comparison to other Anastrepha species in an area composed of mango and chicozapote orchards. Attraction to grape lures was compared with CeraTrap and the standard protein Captor +borax trap. In general, CeraTrap was more attractive than different commercial grape products in several experiments. Only Jumex, a commercial grape juice, did not differ significantly from CeraTrap in the capture of A. ludens males and females in a citrus crop. However, several drawbacks were detected when using Jumex grape juice: 1) higher tendency to capture males, 2) less selectivity against non-targeted insects, 3) higher capture of beneficial lacewings, and iv) the need to re-bait weekly owing to lower stability. In the area containing mango and chicozapote, CeraTrap was more attractive than Captor + borax for Anastrepha obliqua and Anastrepha serpentina, followed by grape juice products, which were the least attractive for these fruit fly species.
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Affiliation(s)
- F Herrera
- Cítricos EX S. A. de C. V., Carretera a Cañadas libramiento s/n. Martínez de la Torre, Veracruz 93600, México (; ; )
| | - E Miranda
- Cítricos EX S. A. de C. V., Carretera a Cañadas libramiento s/n. Martínez de la Torre, Veracruz 93600, México (; ; )
| | - E Gómez
- Cítricos EX S. A. de C. V., Carretera a Cañadas libramiento s/n. Martínez de la Torre, Veracruz 93600, México (; ; )
| | - E Presa-Parra
- Red de Manejo Biorracional de Plagas y Vectores, Instituto de Ecología, A.C., Xalapa, Veracruz 91070, México (; ) and
| | - R Lasa
- Red de Manejo Biorracional de Plagas y Vectores, Instituto de Ecología, A.C., Xalapa, Veracruz 91070, México (; ) and
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Quito VL, Hoyos JA, Miranda E. Emergent SU(3) Symmetry in Random Spin-1 Chains. Phys Rev Lett 2015; 115:167201. [PMID: 26550897 DOI: 10.1103/physrevlett.115.167201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Indexed: 06/05/2023]
Abstract
We show that generic SU(2)-invariant random spin-1 chains have phases with an emergent SU(3) symmetry. We map out the full zero-temperature phase diagram and identify two different phases: (i) a conventional random-singlet phase (RSP) of strongly bound spin pairs [SU(3) "mesons"] and (ii) an unconventional RSP of bound SU(3) "baryons," which are formed, in the great majority, by spin trios located at random positions. The emergent SU(3) symmetry dictates that susceptibilities and correlation functions of both dipolar and quadrupolar spin operators have the same asymptotic behavior.
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Affiliation(s)
- V L Quito
- Instituto de Física Gleb Wataghin, Unicamp, Rua Sérgio Buarque de Holanda 777, CEP 13083-859 Campinas, São Paulo, Brazil
| | - José A Hoyos
- Instituto de Física de São Carlos, Universidade de São Paulo, C.P. 369, São Carlos, São Paulo 13560-970, Brazil
| | - E Miranda
- Instituto de Física Gleb Wataghin, Unicamp, Rua Sérgio Buarque de Holanda 777, CEP 13083-859 Campinas, São Paulo, Brazil
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Lasa R, Herrera F, Miranda E, Gómez E, Antonio S, Aluja M. Economic and Highly Effective Trap-Lure Combination to Monitor the Mexican Fruit Fly (Diptera: Tephritidae) at the Orchard Level. J Econ Entomol 2015; 108:1637-1645. [PMID: 26470304 DOI: 10.1093/jee/tov121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 04/21/2015] [Indexed: 06/05/2023]
Abstract
Monitoring population levels of the Mexican fruit fly, Anastrepha ludens (Loew) (Diptera: Tephritidae), at the orchard level prior and during the fruit ripening period can result in significant savings in the costs of managing this pestiferous insect. Unfortunately, to date, no highly effective and economically viable trap is available to growers. To move toward this goal, trap-lure combinations were evaluated in trials performed in citrus orchards in Veracruz, Mexico. CeraTrap, an enzymatic hydrolyzed protein from pig intestinal mucose, was 3.6 times more attractive to A. ludens than the most commonly used bait of Captor (hydrolyzed protein and borax) when using Multilure traps. When several commercial traps were evaluated, the efficacy of a simple and inexpensive transparent polyethylene (PET) bottle with 10-mm lateral holes was similar to that of the costly Multilure trap when baited with CeraTrap and significantly more effective than a Multilure trap baited with Captor. PET bottles filled with Cera Trap, rebaited at 8-wk intervals, and tested in trials encompassing 72 ha of citrus groves, were significantly more effective than Multilure traps baited with Captor that need to be serviced weekly. In addition to this relevant finding, CeraTrap baited traps detected A. ludens at lower population densities and attracted a significantly higher number of flies at all densities when compared with Captor-baited traps. We conclude that CeraTrap represents a cost-effective and highly efficient bait that will enable us to pursue the goal of developing economic thresholds, a badly needed management tool for A. ludens.
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Affiliation(s)
- R Lasa
- Red de Manejo Biorracional de Plagas y Vectores, Instituto de Ecología, A.C., Xalapa, Veracruz 91070, Mexico.
| | - F Herrera
- Cítricos EX S. A. de C. V., Carretera a Cañadas libramiento s/n. Martínez de la Torre, Veracruz 93600, Mexico
| | - E Miranda
- Cítricos EX S. A. de C. V., Carretera a Cañadas libramiento s/n. Martínez de la Torre, Veracruz 93600, Mexico
| | - E Gómez
- Cítricos EX S. A. de C. V., Carretera a Cañadas libramiento s/n. Martínez de la Torre, Veracruz 93600, Mexico
| | - S Antonio
- Cítricos EX S. A. de C. V., Carretera a Cañadas libramiento s/n. Martínez de la Torre, Veracruz 93600, Mexico
| | - M Aluja
- Red de Manejo Biorracional de Plagas y Vectores, Instituto de Ecología, A.C., Xalapa, Veracruz 91070, Mexico
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Magaña S, Li H, Miranda E, Paradiso de Sayu R. Improving health behaviours of Latina mothers of youths and adults with intellectual and developmental disabilities. J Intellect Disabil Res 2015; 59:397-410. [PMID: 24761812 DOI: 10.1111/jir.12139] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/21/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Latina mothers who care for children with intellectual and developmental disabilities (IDD) over the lifespan struggle to take care of their own health needs in the context of their caregiving experience. Services are typically aimed at the persons with IDD and not their family caregivers. Yet, attending to family caregiver needs may contribute to better long-term care of persons with IDD who remain at home. To address this unmet need, we developed a culturally sensitive health education intervention for Latina mothers who care for youth and adults with IDD. The aim of the intervention is to improve maternal health-related self-efficacy and health behaviours, and to reduce stress. METHOD A randomised control design was employed to determine preliminary efficacy of the intervention. Paired sample t-tests were conducted to examine within-group changes from baseline to 3-month post-test. Repeated-measures analysis of covariance was used to examine the group-by-time interaction effects. RESULTS Intervention participants showed greater increases between pre- and post-test in health-related self-efficacy; self-care, nutrition and overall health behaviours. Both groups reported decreases in depressive symptoms and caregiver burden. CONCLUSIONS While additional research is needed to determine long-term effects and to replicate findings, our results suggest that this culturally sensitive health intervention is a promising way to increase health behaviours which may lead to overall good health for Latina mothers who care for children with IDD across the lifespan.
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Affiliation(s)
- S Magaña
- University of Illinois at Chicago, Chicago, IL, USA
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Javan Mard H, Andrade EC, Miranda E, Dobrosavljević V. Non-Gaussian spatial correlations dramatically weaken localization. Phys Rev Lett 2015; 114:056401. [PMID: 25699458 DOI: 10.1103/physrevlett.114.056401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Indexed: 06/04/2023]
Abstract
We perform variational studies of the interaction-localization problem to describe the interaction-induced renormalizations of the effective (screened) random potential seen by quasiparticles. Here we present results of careful finite-size scaling studies for the conductance of disordered Hubbard chains at half-filling and zero temperature. While our results indicate that quasiparticle wave functions remain exponentially localized even in the presence of moderate to strong repulsive interactions, we show that interactions produce a strong decrease of the characteristic conductance scale g^{*} signaling the crossover to strong localization. This effect, which cannot be captured by a simple renormalization of the disorder strength, instead reflects a peculiar non-Gaussian form of the spatial correlations of the screened disordered potential, a hitherto neglected mechanism to dramatically reduce the impact of Anderson localization (interference) effects.
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Affiliation(s)
- H Javan Mard
- Department of Physics and National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
| | - E C Andrade
- Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden, Germany
| | - E Miranda
- Instituto de Física Gleb Wataghin, Unicamp, R. Sérgio Buarque de Holanda, 777, Campinas, SP 13083-859, Brazil
| | - V Dobrosavljević
- Department of Physics and National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
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Tan L, Dickens JA, DeMeo DL, Miranda E, Perez J, Rashid ST, Day J, Ordonez A, Marciniak SJ, Haq I, Barker AF, Campbell EJ, Eden E, McElvaney NG, Rennard SI, Sandhaus RA, Stocks JM, Stoller JK, Strange C, Turino G, Rouhani FN, Brantly M, Lomas DA. Circulating polymers in 1-antitrypsin deficiency. Eur Respir J 2014; 43:1501-4. [DOI: 10.1183/09031936.00111213] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Asby DJ, Cuda F, Hoakwie F, Miranda E, Tavassoli A. HIF-1 promotes the expression of its α-subunit via an epigenetically regulated transactivation loop. ACTA ACUST UNITED AC 2014; 10:2505-8. [DOI: 10.1039/c4mb00351a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A HIF-1 protein–protein interaction inhibitor is used to establish the presence of a HIF-1α transactivation loop in hypoxia.
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Affiliation(s)
- D. J. Asby
- Chemistry
- University of Southampton
- Southampton, UK
| | - F. Cuda
- Chemistry
- University of Southampton
- Southampton, UK
| | - F. Hoakwie
- Chemistry
- University of Southampton
- Southampton, UK
| | - E. Miranda
- Chemistry
- University of Southampton
- Southampton, UK
| | - A. Tavassoli
- Chemistry
- University of Southampton
- Southampton, UK
- Cancer Sciences
- Faculty of Medicine
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Dickens JA, Tan L, DeMeo DL, Miranda E, Perez J, Rashid ST, Day J, Ordonez A, Marciniak SJ, Haq I, Barker AF, Campbell EJ, Eden E, McElvaney NG, Rennard SI, Sandhaus RA, Stocks JM, Stoller JK, Strange C, Turino G, Rouhani FN, Brantly M, Lomas DA. S64 Circulating polymers are found in alpha-1-antitrypsin deficiency and are associated with lung disease. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gutierrez M, Pina A, Miranda E, Alonso C. [Late spinal epidural abscess after epidural anesthesia]. ACTA ACUST UNITED AC 2013; 61:293-4. [PMID: 24035537 DOI: 10.1016/j.redar.2013.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 07/09/2013] [Accepted: 07/11/2013] [Indexed: 10/26/2022]
Affiliation(s)
- M Gutierrez
- Servicio de Anestesiología y Reanimación, Hospital General Universitario de Elche, Elche, Alicante, España.
| | - A Pina
- Servicio de Anestesiología y Reanimación, Hospital General Universitario de Elche, Elche, Alicante, España
| | - E Miranda
- Servicio de Anestesiología y Reanimación, Hospital General Universitario de Elche, Elche, Alicante, España
| | - C Alonso
- Servicio de Anestesiología y Reanimación, Hospital General Universitario de Elche, Elche, Alicante, España
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Abstract
The results in this paper add useful tools to the theory of sets of desirable gambles, a growing toolbox for reasoning with partial probability assessments. We investigate how to combine a number of marginal coherent sets of desirable gambles into a joint set using the properties of epistemic irrelevance and independence. We provide formulas for the smallest such joint, called their independent natural extension, and study its main properties. The independent natural extension of maximal coherent sets of desirable gambles allows us to define the strong product of sets of desirable gambles. Finally, we explore an easy way to generalise these results to also apply for the conditional versions of epistemic irrelevance and independence. Having such a set of tools that are easily implemented in computer programs is clearly beneficial to fields, like AI, with a clear interest in coherent reasoning under uncertainty using general and robust uncertainty models that require no full specification.
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Schmid ST, Koepke J, Dresel M, Hattesohl A, Frenzel E, Perez J, Lomas DA, Miranda E, Greulich T, Noeske S, Wencker M, Teschler H, Vogelmeier C, Janciauskiene S, Koczulla AR. The effects of weekly augmentation therapy in patients with PiZZ α1-antitrypsin deficiency. Int J Chron Obstruct Pulmon Dis 2012; 7:687-96. [PMID: 23055718 PMCID: PMC3468059 DOI: 10.2147/copd.s34560] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The major concept behind augmentation therapy with human α1-antitrypsin (AAT) is to raise the levels of AAT in patients with protease inhibitor phenotype ZZ (Glu342Lys)-inherited AAT deficiency and to protect lung tissues from proteolysis and progression of emphysema. Objective To evaluate the short-term effects of augmentation therapy (Prolastin®) on plasma levels of AAT, C-reactive protein, and chemokines/cytokines. Materials and methods Serum and exhaled breath condensate were collected from individuals with protease inhibitor phenotype ZZ AAT deficiency-related emphysema (n = 12) on the first, third, and seventh day after the infusion of intravenous Prolastin. Concentrations of total and polymeric AAT, interleukin-8 (IL-8), monocyte chemotactic protein-1, IL-6, tumor necrosis factor-α, vascular endothelial growth factor, and C-reactive protein were determined. Blood neutrophils and primary epithelial cells were also exposed to Prolastin (1 mg/mL). Results There were significant fluctuations in serum (but not in exhaled breath condensate) levels of AAT polymers, IL-8, monocyte chemotactic protein-1, IL-6, tumor necrosis factor-α, and vascular endothelial growth factor within a week of augmentation therapy. In general, augmented individuals had higher AAT and lower serum levels of IL-8 than nonaugmented subjects. Prolastin added for 3 hours to neutrophils from protease inhibitor phenotype ZZ individuals in vitro reduced IL-8 release but showed no effect on cytokine/chemokine release from human bronchial epithelial cells. Conclusion Within a week, augmentation with Prolastin induced fluctuations in serum levels of AAT polymers and cytokine/chemokines but specifically lowered IL-8 levels. It remains to be determined whether these effects are related to the Prolastin preparation per se or to the therapeutic efficacy of augmentation with AAT.
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Affiliation(s)
- S T Schmid
- Department of Internal Medicine, Division for Pulmonary Diseases, University Hospital Marburg, Marburg, Germany
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Vilas-Zornoza A, Agirre X, Abizanda G, Moreno C, Segura V, De Martino Rodriguez A, José-Eneriz ES, Miranda E, Martín-Subero JI, Garate L, Blanco-Prieto MJ, García de Jalón JA, Rio P, Rifón J, Cigudosa JC, Martinez-Climent JA, Román-Gómez J, Calasanz MJ, Ribera JM, Prósper F. Preclinical activity of LBH589 alone or in combination with chemotherapy in a xenogeneic mouse model of human acute lymphoblastic leukemia. Leukemia 2012; 26:1517-26. [PMID: 22307227 DOI: 10.1038/leu.2012.31] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Histone deacetylases (HDACs) have been identified as therapeutic targets due to their regulatory function in chromatin structure and organization. Here, we analyzed the therapeutic effect of LBH589, a class I-II HDAC inhibitor, in acute lymphoblastic leukemia (ALL). In vitro, LBH589 induced dose-dependent antiproliferative and apoptotic effects, which were associated with increased H3 and H4 histone acetylation. Intravenous administration of LBH589 in immunodeficient BALB/c-RAG2(-/-)γc(-/-) mice in which human-derived T and B-ALL cell lines were injected induced a significant reduction in tumor growth. Using primary ALL cells, a xenograft model of human leukemia in BALB/c-RAG2(-/-)γc(-/-) mice was established, allowing continuous passages of transplanted cells to several mouse generations. Treatment of mice engrafted with T or B-ALL cells with LBH589 induced an in vivo increase in the acetylation of H3 and H4, which was accompanied with prolonged survival of LBH589-treated mice in comparison with those receiving vincristine and dexamethasone. Notably, the therapeutic efficacy of LBH589 was significantly enhanced in combination with vincristine and dexamethasone. Our results show the therapeutic activity of LBH589 in combination with standard chemotherapy in pre-clinical models of ALL and suggest that this combination may be of clinical value in the treatment of patients with ALL.
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Morris H, Morgan MD, Wood AM, Smith SW, Ekeowa UI, Herrmann K, Holle JU, Guillevin L, Lomas DA, Perez J, Pusey CD, Salama AD, Stockley R, Wieczorek S, McKnight AJ, Maxwell AP, Miranda E, Williams J, Savage CO, Harper L. ANCA-associated vasculitis is linked to carriage of the Z allele of α₁ antitrypsin and its polymers. Ann Rheum Dis 2011; 70:1851-6. [PMID: 21821620 DOI: 10.1136/ard.2011.153569] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Small studies have linked α1 antitrypsin (α1AT) deficiency to patients with antineutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV). OBJECTIVE To test the validity and the mechanism of this association between α1AT and AAV. METHODS The distribution of α1AT deficiency alleles Z and S was compared between 856 White Europeans with AAV and 1505 geographic and ethnically matched healthy controls. Genotyping was performed by allelic discrimination assay. RESULTS were compared between cases and controls using χ(2) tests. The serum and renal biopsies for α1AT polymers were compared using the polymer-specific 2C1 antibody. The role of α1AT polymers in promoting inflammation was investigated by examining their ability to prime neutrophils for ANCA activation as assessed by CD62L shedding, superoxide production and myeloperoxidase degranulation. Results The Z but not the S allele was over-represented in the patients compared with controls (HR=2.25, 95% CI 1.60 to 3.19). Higher concentrations of polymers of α1AT were detected in serum from patients carrying the Z allele than in those not carrying the Z allele (median (IQR) 1.40 (0.91-3.32) mg/dl vs 0.17 (0.06-0.28) mg/dl, p<0.001); polymers of α1AT were also seen in the renal biopsy of a patient with vasculitic glomerulonephritis. Polymers of α1AT primed neutrophils with CD62L shedding and increased superoxide production following ANCA activation. Carriage of the Z allele was not associated with disease severity, survival or relapse. CONCLUSIONS The Z but not the S deficiency allele is associated with AAV. Polymers of α1AT are present in the serum and glomeruli of at least some patients with the Z allele, which may promote inflammation through priming of neutrophils.
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Affiliation(s)
- H Morris
- School of Immunity and Infection, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
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