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Teruel M, Barturen G, Martínez-Bueno M, Castellini-Pérez O, Barroso-Gil M, Povedano E, Kerick M, Català-Moll F, Makowska Z, Buttgereit A, Pers JO, Marañón C, Ballestar E, Martin J, Carnero-Montoro E, Alarcón-Riquelme ME. Integrative epigenomics in Sjögren´s syndrome reveals novel pathways and a strong interaction between the HLA, autoantibodies and the interferon signature. Sci Rep 2021; 11:23292. [PMID: 34857786 PMCID: PMC8640069 DOI: 10.1038/s41598-021-01324-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 10/19/2021] [Indexed: 12/24/2022] Open
Abstract
Primary Sjögren's syndrome (SS) is a systemic autoimmune disease characterized by lymphocytic infiltration and damage of exocrine salivary and lacrimal glands. The etiology of SS is complex with environmental triggers and genetic factors involved. By conducting an integrated multi-omics study, we confirmed a vast coordinated hypomethylation and overexpression effects in IFN-related genes, what is known as the IFN signature. Stratified and conditional analyses suggest a strong interaction between SS-associated HLA genetic variation and the presence of Anti-Ro/SSA autoantibodies in driving the IFN epigenetic signature and determining SS. We report a novel epigenetic signature characterized by increased DNA methylation levels in a large number of genes enriched in pathways such as collagen metabolism and extracellular matrix organization. We identified potential new genetic variants associated with SS that might mediate their risk by altering DNA methylation or gene expression patterns, as well as disease-interacting genetic variants that exhibit regulatory function only in the SS population. Our study sheds new light on the interaction between genetics, autoantibody profiles, DNA methylation and gene expression in SS, and contributes to elucidate the genetic architecture of gene regulation in an autoimmune population.
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Affiliation(s)
- María Teruel
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain
| | - Guillermo Barturen
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain
| | - Manuel Martínez-Bueno
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain
| | - Olivia Castellini-Pérez
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain
| | - Miguel Barroso-Gil
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain
| | - Elena Povedano
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain
| | - Martin Kerick
- IPBLN-CSIC, Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, 18016, Granada, Spain
| | - Francesc Català-Moll
- Epigenetics and Immune Disease Group, Josep Carreras Research Institute (IJC), 08916, Badalona, Barcelona, Spain
- IDIBELL, Bellvitge Biomedical Research Institute 08907 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Zuzanna Makowska
- Pharmaceuticals Division, Bayer Pharma Aktiengesellschaft, Berlin, Germany
| | - Anne Buttgereit
- Pharmaceuticals Division, Bayer Pharma Aktiengesellschaft, Berlin, Germany
| | | | - Concepción Marañón
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain
| | - Esteban Ballestar
- Epigenetics and Immune Disease Group, Josep Carreras Research Institute (IJC), 08916, Badalona, Barcelona, Spain
- IDIBELL, Bellvitge Biomedical Research Institute 08907 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Javier Martin
- IPBLN-CSIC, Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, 18016, Granada, Spain
| | - Elena Carnero-Montoro
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain.
| | - Marta E Alarcón-Riquelme
- GENYO, Center for Genomics and Oncological Research Pfizer/University of Granada/Andalusian Regional Government, 18016, Granada, Spain.
- Institute for Environmental Medicine, Karolinska Institutet, 171 67, Solna, Sweden.
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Barturen G, Babaei S, Català-Moll F, Martínez-Bueno M, Makowska Z, Martorell-Marugán J, Carmona-Sáez P, Toro-Domínguez D, Carnero-Montoro E, Teruel M, Kerick M, Acosta-Herrera M, Le Lann L, Jamin C, Rodríguez-Ubreva J, García-Gómez A, Kageyama J, Buttgereit A, Hayat S, Mueller J, Lesche R, Hernandez-Fuentes M, Juarez M, Rowley T, White I, Marañón C, Gomes Anjos T, Varela N, Aguilar-Quesada R, Garrancho FJ, López-Berrio A, Rodriguez Maresca M, Navarro-Linares H, Almeida I, Azevedo N, Brandão M, Campar A, Faria R, Farinha F, Marinho A, Neves E, Tavares A, Vasconcelos C, Trombetta E, Montanelli G, Vigone B, Alvarez-Errico D, Li T, Thiagaran D, Blanco Alonso R, Corrales Martínez A, Genre F, López Mejías R, Gonzalez-Gay MA, Remuzgo S, Ubilla Garcia B, Cervera R, Espinosa G, Rodríguez-Pintó I, De Langhe E, Cremer J, Lories R, Belz D, Hunzelmann N, Baerlecken N, Kniesch K, Witte T, Lehner M, Stummvoll G, Zauner M, Aguirre-Zamorano MA, Barbarroja N, Castro-Villegas MC, Collantes-Estevez E, de Ramon E, Díaz Quintero I, Escudero-Contreras A, Fernández Roldán MC, Jiménez Gómez Y, Jiménez Moleón I, Lopez-Pedrera R, Ortega-Castro R, Ortego N, Raya E, Artusi C, Gerosa M, Meroni PL, Schioppo T, De Groof A, Ducreux J, Lauwerys B, Maudoux AL, Cornec D, Devauchelle-Pensec V, Jousse-Joulin S, Jouve PE, Rouvière B, Saraux A, Simon Q, Alvarez M, Chizzolini C, Dufour A, Wynar D, Balog A, Bocskai M, Deák M, Dulic S, Kádár G, Kovács L, Cheng Q, Gerl V, Hiepe F, Khodadadi L, Thiel S, de Rinaldis E, Rao S, Benschop RJ, Chamberlain C, Dow ER, Ioannou Y, Laigle L, Marovac J, Wojcik J, Renaudineau Y, Borghi MO, Frostegård J, Martín J, Beretta L, Ballestar E, McDonald F, Pers JO, Alarcón-Riquelme ME. Integrative Analysis Reveals a Molecular Stratification of Systemic Autoimmune Diseases. Arthritis Rheumatol 2021; 73:1073-1085. [PMID: 33497037 DOI: 10.1002/art.41610] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/01/2020] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Clinical heterogeneity, a hallmark of systemic autoimmune diseases, impedes early diagnosis and effective treatment, issues that may be addressed if patients could be classified into groups defined by molecular pattern. This study was undertaken to identify molecular clusters for reclassifying systemic autoimmune diseases independently of clinical diagnosis. METHODS Unsupervised clustering of integrated whole blood transcriptome and methylome cross-sectional data on 955 patients with 7 systemic autoimmune diseases and 267 healthy controls was undertaken. In addition, an inception cohort was prospectively followed up for 6 or 14 months to validate the results and analyze whether or not cluster assignment changed over time. RESULTS Four clusters were identified and validated. Three were pathologic, representing "inflammatory," "lymphoid," and "interferon" patterns. Each included all diagnoses and was defined by genetic, clinical, serologic, and cellular features. A fourth cluster with no specific molecular pattern was associated with low disease activity and included healthy controls. A longitudinal and independent inception cohort showed a relapse-remission pattern, where patients remained in their pathologic cluster, moving only to the healthy one, thus showing that the molecular clusters remained stable over time and that single pathogenic molecular signatures characterized each individual patient. CONCLUSION Patients with systemic autoimmune diseases can be jointly stratified into 3 stable disease clusters with specific molecular patterns differentiating different molecular disease mechanisms. These results have important implications for future clinical trials and the study of nonresponse to therapy, marking a paradigm shift in our view of systemic autoimmune diseases.
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Affiliation(s)
- Guillermo Barturen
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | | | | | - Manuel Martínez-Bueno
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | | | - Jordi Martorell-Marugán
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | - Pedro Carmona-Sáez
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | - Daniel Toro-Domínguez
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | - Elena Carnero-Montoro
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | - María Teruel
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | - Martin Kerick
- Institute of Parasitology and Biomedicine "López Neyra", Spanish National Research Council, Granada, Spain
| | - Marialbert Acosta-Herrera
- Institute of Parasitology and Biomedicine "López Neyra", Spanish National Research Council, Granada, Spain
| | - Lucas Le Lann
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | - Christophe Jamin
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | | | | | | | | | | | | | | | | | | | | | | | - Concepción Marañón
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | - Tania Gomes Anjos
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | - Nieves Varela
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain
| | | | | | | | | | | | | | | | | | - Ana Campar
- Centro Hospitalar do Porto, Porto, Portugal
| | | | | | | | | | | | | | - Elena Trombetta
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Gaia Montanelli
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Barbara Vigone
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Tianlu Li
- Bellvitge Biomedical Research Institute, Barcelona, Spain
| | | | - Ricardo Blanco Alonso
- Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | | | - Fernanda Genre
- Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Raquel López Mejías
- Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Miguel A Gonzalez-Gay
- Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Sara Remuzgo
- Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Begoña Ubilla Garcia
- Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Ricard Cervera
- Hospital Clínic and Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Gerard Espinosa
- Hospital Clínic and Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Ignasi Rodríguez-Pintó
- Hospital Clínic and Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Ellen De Langhe
- Katholieke Universiteit Leuven and Universitair Ziekenhuis Leuven, Leuven, Belgium
| | - Jonathan Cremer
- Katholieke Universiteit Leuven and Universitair Ziekenhuis Leuven, Leuven, Belgium
| | - Rik Lories
- Katholieke Universiteit Leuven and Universitair Ziekenhuis Leuven, Leuven, Belgium
| | - Doreen Belz
- Klinikum der Universitaet zu Koeln, Cologne, Germany
| | | | | | | | | | | | | | | | | | - Nuria Barbarroja
- Reina Sofia University Hospital and University of Cordoba, Cordoba, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Aurélie De Groof
- Université Catholique de Louvain and Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Julie Ducreux
- Université Catholique de Louvain and Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Bernard Lauwerys
- Université Catholique de Louvain and Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Anne-Lise Maudoux
- Université Catholique de Louvain and Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Divi Cornec
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | | | - Sandrine Jousse-Joulin
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | | | - Bénédicte Rouvière
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | - Alain Saraux
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | - Quentin Simon
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | | | | | | | | | | | | | | | | | | | | | - Qingyu Cheng
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Velia Gerl
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Falk Hiepe
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | - Silvia Thiel
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | | | | | | | | | | | - Laurence Laigle
- Institut de Recherches Internationales Servier, Suresnes, France
| | | | | | - Yves Renaudineau
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | | | | | - Javier Martín
- Institute of Parasitology and Biomedicine "López Neyra", Spanish National Research Council, Granada, Spain
| | - Lorenzo Beretta
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | | | - Jacques-Olivier Pers
- Université de Brest, Centre Hospitalier Universitaire de Brest, INSERM, and Labex IGO, Brest, France
| | - Marta E Alarcón-Riquelme
- Pfizer-University of Granada-Junta de Andalucía Centre for Genomics and Oncological Research, Granada, Spain, and Karolinska Institutet, Stockholm, Sweden
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Khatri B, Reksten TR, Tessneer KL, Rasmussen A, Scofield RH, Bowman SJ, Guthridge J, James JA, Ronnblom L, Warner BM, Mariette X, Omdal R, Martin Ibanez J, Teruel M, Jensen JL, Aqrawi LA, Palm Ø, Wahren-Herlenius M, Witte T, Jonsson R, Rischmueller M, Farris AD, Alarcon-Riquelme M, Ng WF, Sivils KL, Nordmark G, Lessard C. OP0047 GENOME-WIDE ASSOCIATION STUDY OF SJÖGREN’S SYNDROME IDENTIFIES TEN NEW RISK LOCI. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Background:Sjögren’s syndrome (SS) is a complex autoimmune disease with exocrine gland dysfunction leading to substantial morbidity. There are 10 published genetic susceptibility loci.Objectives:Our genome-wide association study (GWAS) aimed to identify additional risk loci of genome-wide significance (GWS; p<5E-08) in European-derived primary SS.Methods:A total of 3232 cases and 17481 controls genotyped on GWAS arrays and 619 cases and 6171 controls genotyped on ImmunoChip (IC) arrays were imputed after quality control. Logistic regression was calculated adjusting for ancestry using the first 4 principal components to identify SS-associated SNPs. GWAS and IC results were meta-analyzed using weighted Z-scores. Bayesian statistics were used to assign posterior probabilities and define credible SNP sets for each locus. Bioinformatic analyses were used to predict functionality.Results:Seven novel loci exceeded GWS in the GWAS analysis:NAB1,MIR146A-PTTG1,XKR6,MAPT-CRHR1,RPTOR-CHMP6-BAIAP2,TYK2andSYNGR1. Meta-analysis with IC data identified three more novel loci exceeding GWS:CD247,PRDM1-ATG5andTNFAIP3. Several additional loci with suggestive association (p<1E-05) were also identified:ADAMTSL2,CGNL1andPHRF1.Several identified loci have reported functional implications in immune regulation and autoimmune disease. In lupus, rs2431697 correlated with rs2431098, which was shown to alterMIR146Aexpression, resulting in type I interferon pathway imbalance. Similarly,TYK2risk association reportedly drives interferon, IL10 and RET signaling pathways.PRDM1encodes Blimp-1, a master regulator of immune cell differentiation.CD247encodes the zeta subunit of the T cell receptor complex.XKR6is implicated in apoptotic cell ingestion.ATG5is also involved in apoptosis, as well as autophagy and antigen presentation.Additional bioinformatics analyses (Haploreg, Regulome DB, ENCODE, etc.) revealed immune-relevant functional implications for each risk locus. The SS-associated credible set included variants downstream ofTNFAIP3in a region reported to abolish looping between an enhancer and theTNFAIP3promoter in lupus and a coding variant that has been shown to alter NF-kB activity and neutrophil extra-cellular traps. The rs2293765 in the 5’ UTR ofNAB1showed evidence of enhancer/promoter activities. The rs2069235 in theSYNGR1locus showed enhancer and transcription start site activities in B and T cells. The rs7210219 in theMAPT-CRHR1locus showed enhancer/promotor activities in various tissues.Conclusion:We have identified ten novel genetic susceptibility loci associated with SS pathology. Our finding increases the current number of GWS regions in SS patients of European origin, from 10 to 20. Future work is needed to identify and characterize the functional variants in each region.Disclosure of Interests:Bhuwan Khatri: None declared, Tove Ragna Reksten: None declared, Kandice L Tessneer: None declared, Astrid Rasmussen Speakers bureau: Novartis, ThermoFischer, R Hal Scofield Grant/research support from: Pfizer, Simon J. Bowman Consultant of: Astrazeneca, Biogen, BMS, Celgene, Medimmune, MTPharma, Novartis, Ono, UCB, xtlbio, Glapagos, Speakers bureau: Novartis, Joel Guthridge Grant/research support from: Xencor, Bristol Myers Squibb, DXterity, Judith A. James Grant/research support from: Progentec Diagnostics, Inc, Consultant of: Abbvie, Novartis, Jannsen, Lars Ronnblom Grant/research support from: AZ, Speakers bureau: AZ, Blake M Warner: None declared, Xavier Mariette: None declared, Roald Omdal: None declared, Javier Martin Ibanez: None declared, Maria Teruel: None declared, Janicke Liaaen Jensen: None declared, Lara A Aqrawi: None declared, Øyvind Palm: None declared, Marie Wahren-Herlenius: None declared, Torsten Witte: None declared, Roland Jonsson: None declared, Maureen Rischmueller: None declared, A Darise Farris Speakers bureau: Biogen, Marta Alarcon-Riquelme: None declared, Wan-fai Ng: None declared, Kathy L Sivils: None declared, Gunnel Nordmark: None declared, Christopher Lessard: None declared
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Carnero-Montoro E, Barturen G, Povedano E, Kerick M, Martinez-Bueno M, Ballestar E, Martin J, Teruel M, Alarcón-Riquelme ME. Epigenome-Wide Comparative Study Reveals Key Differences Between Mixed Connective Tissue Disease and Related Systemic Autoimmune Diseases. Front Immunol 2019; 10:1880. [PMID: 31440254 PMCID: PMC6693476 DOI: 10.3389/fimmu.2019.01880] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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] [Received: 05/15/2019] [Accepted: 07/24/2019] [Indexed: 11/26/2022] Open
Abstract
Mixed Connective Tissue Disease (MCTD) is a rare complex systemic autoimmune disease (SAD) characterized by the presence of increased levels of anti-U1 ribonucleoprotein autoantibodies and signs and symptoms that resemble other SADs such as systemic sclerosis (SSc), rheumatoid arthritis (RA), and systemic lupus erythematosus (SLE). Due to its low prevalence, this disease has been very poorly studied at the molecular level. We performed for the first time an epigenome-wide association study interrogating DNA methylation data obtained with the Infinium MethylationEPIC array from whole blood samples in 31 patients diagnosed with MCTD and 255 healthy subjects. We observed a pervasive hypomethylation involving 170 genes enriched for immune-related function such as those involved in type I interferon signaling pathways or in negative regulation of viral genome replication. We mostly identified epigenetic signals at genes previously implicated in other SADs, for example MX1, PARP9, DDX60, or IFI44L, for which we also observed that MCTD patients exhibit higher DNA methylation variability compared with controls, suggesting that these sites might be involved in plastic immune responses that are relevant to the disease. Through methylation quantitative trait locus (meQTL) analysis we identified widespread local genetic effects influencing DNA methylation variability at MCTD-associated sites. Interestingly, for IRF7, IFI44 genes, and the HLA region we have evidence that they could be exerting a genetic risk on MCTD mediated through DNA methylation changes. Comparison of MCTD-associated epigenome with patients diagnosed with SLE, or Sjögren's Syndrome, reveals a common interferon-related epigenetic signature, however we find substantial epigenetic differences when compared with patients diagnosed with rheumatoid arthritis and systemic sclerosis. Furthermore, we show that MCTD-associated CpGs are potential epigenetic biomarkers with high diagnostic value. Our study serves to reveal new genes and pathways involved in MCTD, to illustrate the important role of epigenetic modifications in MCTD pathology, in mediating the interaction between different genetic and environmental MCTD risk factors, and as potential biomarkers of SADs.
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Affiliation(s)
- Elena Carnero-Montoro
- GENYO, Center for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Granada, Spain
| | - Guillermo Barturen
- GENYO, Center for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Granada, Spain
| | - Elena Povedano
- GENYO, Center for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Granada, Spain
| | - Martin Kerick
- CSIC-IBPLN, Consejo Superior de Investigaciones Científicas, Instituto de Parasitología y Biomedicina López-Neyra, Granada, Spain
| | - Manuel Martinez-Bueno
- GENYO, Center for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Granada, Spain
| | | | - Esteban Ballestar
- IDIBELL, Bellvitge Biomedical Research Institute L'Hospitalet de Llobregat, Barcelona, Spain
| | - Javier Martin
- CSIC-IBPLN, Consejo Superior de Investigaciones Científicas, Instituto de Parasitología y Biomedicina López-Neyra, Granada, Spain
| | - María Teruel
- GENYO, Center for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Granada, Spain
| | - Marta E Alarcón-Riquelme
- GENYO, Center for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Granada, Spain.,Institute for Environmental Medicine, Karolinska Institutet, Solna, Sweden
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Gómez-Villarejo R, Martín EI, Sánchez-Coronilla A, Aguilar T, Teruel M, Alcántara R, Carrillo-Berdugo I, Fernández-Lorenzo C, Navas J. Experimental Characterization and Theoretical Modelling of Ag and Au-Nanofluids: A Comparative Study of Their Thermal Properties. j nanofluids 2018. [DOI: 10.1166/jon.2018.1544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Teruel M, Martin J, Rodriguez-Rodriguez L, Balsa A, Pascul-Salcedo D, Gonzalez-Alvarez I, Ortiz A, Acevedo-Vazquez E, Cardiel M, Esquivel-Valerio J, Maradiaga-Ceceña M, Musuruana J, Graf C, Alvarellos A, Gonzalez-Gay M, Pons-Estel B, Alarcon-Riquelme M, Martin J. THU0016 Trans-Ethnic Genome-Wide Analysis Reveals MHC Variability in Rheumatoid Arthritis Genetic Susceptibility. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2228] [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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Catalano R, Teruel M, González C, Williams S, Dorna IV, Callejas S. Reproductive performance of ewe lambs in non-breeding season exposed to hCG at day 12 post mating. Small Rumin Res 2015. [DOI: 10.1016/j.smallrumres.2014.12.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Teruel M, Felipe A, Herrera M, Dopazo J, Díaz M, Gómez S, Eyheramendy V, Guerrero M. Una Propuesta de Evaluación Formativa en Ciencias Morfológicas. INT J MORPHOL 2014. [DOI: 10.4067/s0717-95022014000400014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mayes M, Bossini-Castillo L, Gorlova O, Martin J, Zhou X, Chen W, Assassi S, Ying J, Tan F, Arnett F, Reveille J, Guerra S, Teruel M, Carmona F, Gregersen P, Lee A, López-Isac E, Ochoa E, Carreira P, Simeón C, Castellví I, González-Gay M, Zhernakova A, Padyukov L, Alarcón-Riquelme M, Wijmenga C, Brown M, Beretta L, Riemekasten G, Witte T, Hunzelmann N, Kreuter A, Distler JH, Voskuyl AE, Schuerwegh AJ, Hesselstrand R, Nordin A, Airó P, Lunardi C, Shiels P, van Laar JM, Herrick A, Worthington J, Denton C, Wigley FM, Hummers LK, Varga J, Hinchcliff ME, Baron M, Hudson M, Pope JE, Furst DE, Khanna D, Phillips K, Schiopu E, Segal BM, Molitor JA, Silver RM, Steen VD, Simms RW, Lafyatis RA, Fessler BJ, Frech TM, AlKassab F, Docherty P, Kaminska E, Khalidi N, Jones HN, Markland J, Robinson D, Broen J, Radstake TR, Fonseca C, Koeleman BP, Martin J, Ortego-Centeno N, Ríos R, Callejas J, Navarrete N, García Portales R, Camps M, Fernández-Nebro A, González-Escribano M, Sánchez-Román J, García-Hernández F, Castillo M, Aguirre M, Gómez-Gracia I, Fernández-Gutiérrez B, Rodríguez-Rodríguez L, Vicente E, Andreu J, Fernández de Castro M, García de la Peña P, López-Longo F, Martínez L, Fonollosa V, Espinosa G, Tolosa C, Pros A, Rodríguez Carballeira M, Narváez F, Rubio Rivas M, Ortiz Santamaría V, Díaz B, Trapiella L, Freire M, Sousa A, Egurbide M, Fanlo Mateo P, Sáez-Comet L, Díaz F, Hernández V, Beltrán E, Román-Ivorra J, Grau E, Alegre Sancho J, Blanco García F, Oreiro N, Fernández Sueiro L. Immunochip analysis identifies multiple susceptibility loci for systemic sclerosis. Am J Hum Genet 2014; 94:47-61. [PMID: 24387989 DOI: 10.1016/j.ajhg.2013.12.002] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 12/03/2013] [Indexed: 12/12/2022] Open
Abstract
In this study, 1,833 systemic sclerosis (SSc) cases and 3,466 controls were genotyped with the Immunochip array. Classical alleles, amino acid residues, and SNPs across the human leukocyte antigen (HLA) region were imputed and tested. These analyses resulted in a model composed of six polymorphic amino acid positions and seven SNPs that explained the observed significant associations in the region. In addition, a replication step comprising 4,017 SSc cases and 5,935 controls was carried out for several selected non-HLA variants, reaching a total of 5,850 cases and 9,401 controls of European ancestry. Following this strategy, we identified and validated three SSc risk loci, including DNASE1L3 at 3p14, the SCHIP1-IL12A locus at 3q25, and ATG5 at 6q21, as well as a suggested association of the TREH-DDX6 locus at 11q23. The associations of several previously reported SSc risk loci were validated and further refined, and the observed peak of association in PXK was related to DNASE1L3. Our study has increased the number of known genetic associations with SSc, provided further insight into the pleiotropic effects of shared autoimmune risk factors, and highlighted the power of dense mapping for detecting previously overlooked susceptibility loci.
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Maehlen MT, Olsen IC, Andreassen BK, Viken MK, Jiang X, Alfredsson L, Källberg H, Brynedal B, Kurreeman F, Daha N, Toes R, Zhernakova A, Gutierrez-Achury J, de Bakker PIW, Martin J, Teruel M, Gonzalez-Gay MA, Rodríguez-Rodríguez L, Balsa A, Uhlig T, Kvien TK, Lie BA. Genetic risk scores and number of autoantibodies in patients with rheumatoid arthritis. Ann Rheum Dis 2013; 74:762-8. [PMID: 24336335 DOI: 10.1136/annrheumdis-2013-204173] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Certain HLA-DRB1 alleles and single-nucleotide polymorphisms (SNPs) are associated with rheumatoid arthritis (RA). Our objective was to examine the combined effect of these associated variants, calculated as a cumulative genetic risk score (GRS) on RA predisposition, as well as the number of autoantibodies (none, one or two present). METHOD We calculated four GRSs in 4956 patients and 4983 controls from four European countries. All four scores contained data on 22 non-HLA-risk SNPs, and three scores also contained HLA-DRB1 genotypes but had different HLA typing resolution. Most patients had data on both rheumatoid factor (RF) and anti-citrullinated proteins antibodies (ACPA). The GRSs were standardised (std.GRS) to account for population heterogeneity. Discrimination between patients and controls was examined by receiveroperating characteristics curves, and the four std.GRSs were compared across subgroups according to autoantibody status. RESULTS The std.GRS improved its discriminatory ability between patients and controls when HLA-DRB1 data of higher resolution were added to the combined score. Patients had higher mean std.GRS than controls (p=7.9×10(-156)), and this score was significantly higher in patients with autoantibodies (shown for both RF and ACPA). Mean std.GRS was also higher in those with two versus one autoantibody (p=3.7×10(-23)) but was similar in patients without autoantibodies and controls (p=0.12). CONCLUSIONS The GRS was associated with the number of autoantibodies and to both RF and ACPA positivity. ACPA play a more important role than RF with regards to the genetic risk profile, but stratification of patients according to both RF and ACPA may optimise future genetic studies.
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Affiliation(s)
- Marthe T Maehlen
- Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway Department of Medical Genetics, University of Oslo and Oslo University Hospital, Ullevål, Oslo, Norway
| | - Inge C Olsen
- Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway
| | - Bettina K Andreassen
- Department of EpiGen, Institute of Clinical Medicine, University of Oslo, Oslo, Norway Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Marte K Viken
- Department of Medical Genetics, University of Oslo and Oslo University Hospital, Ullevål, Oslo, Norway
| | - Xia Jiang
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Lars Alfredsson
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Henrik Källberg
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Boel Brynedal
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Fina Kurreeman
- Department of Rheumatology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Nina Daha
- Department of Rheumatology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Rene Toes
- Department of Rheumatology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Alexandra Zhernakova
- Department of Rheumatology, Leiden University Medical Centre, Leiden, The Netherlands Department of Genetics, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands
| | - Javier Gutierrez-Achury
- Department of Genetics, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands
| | - Paul I W de Bakker
- Departments of Medical Genetics and of Epidemiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Javier Martin
- Instituto de Parasitologia y Biomedicina Lopez-Neyra, CSIC, Granada, Spain
| | - María Teruel
- Instituto de Parasitologia y Biomedicina Lopez-Neyra, CSIC, Granada, Spain
| | | | | | | | - Till Uhlig
- Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway
| | - Tore K Kvien
- Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway
| | - Benedicte A Lie
- Department of Medical Genetics, University of Oslo and Oslo University Hospital, Ullevål, Oslo, Norway
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Catena M, Teruel M, Morán P, Chiapparrone M, Echevarria H, Soto P. In vitro Development of Murine Embryos in presence of Campylobacter fetus. INT J MORPHOL 2013. [DOI: 10.4067/s0717-95022013000400004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Teruel M, McKinney C, Balsa A, Pascual-Salcedo D, Rodriguez-Rodriguez L, Ortiz AM, Gómez-Vaquero C, González-Gay MA, Smith M, Witte T, Merriman T, Lie BA, Martin J. Association of CD247 polymorphisms with rheumatoid arthritis: a replication study and a meta-analysis. PLoS One 2013; 8:e68295. [PMID: 23861880 PMCID: PMC3702579 DOI: 10.1371/journal.pone.0068295] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 05/28/2013] [Indexed: 11/18/2022] Open
Abstract
Given the role of CD247 in the response of the T cells, its entailment in autoimmune diseases and in order to better clarify the role of this gene in RA susceptibility, we aimed to analyze CD247 gene variants previously associated with other autoimmune diseases (rs1052237, rs2056626 and rs864537) in a large independent European Caucasian population. However, no evidence of association was found for the analyzed CD247 single-nucleotide polymorphisms (SNPs) with RA and with the presence/absence of anti-cyclic citrullinated polypeptide. We performed a meta-analysis including previously published GWAS data from the rs864537 variant, revealing an overall genome-wide significant association between this CD247 SNP and RA with anti-CCP (OR = 0.90, CI 95% = 0.87-0.93, Poverall = 2.1×10(-10)). Our results show for first time a GWAS-level association between this CD247 polymorphism and RA risk.
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Affiliation(s)
- María Teruel
- Instituto de Parasitología y Biomedicina López-Neyra, Granada, Spain.
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Teruel M, McKinney C, Balsa A, Pascual-Salcedo D, Rodriguez-Rodriguez L, Ortiz AM, Gómez-Vaquero C, González-Gay MA, Smith M, Witte T, Merriman TR, Lie BA, Martin J. AB0093 Association of cd247 polymorphisms with rheumatoid arthritis: a replication study and a meta-analysis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2416] [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: 11/03/2022]
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García-Bermúdez M, González-Juanatey C, Lόpez-Mejías R, Teruel M, Miranda-Filloy J, Castañeda S, Blanco R, Balsa A, Fernández-Gutiérrez B, González-Alvaro I, Gόmez-Vaquero C, Llorca J, Martin J, González-Gay M. AB0021 Study of association of CD40-CD154 gene polymorphisms with disease susceptibility and cardiovascular risk in spanish rheumatoid arthritis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.21] [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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Teruel M, Martin JE, González-Juanatey C, Lόpez-Mejias R, Miranda-Filloy J, Blanco R, Balsa A, Pascual-Salcedo D, Rodriguez-Rodriguez L, Fernández-Gutierrez B, Ortiz A, González-Alvaro I, Gόmez-Vaquero C, Bottini N, Llorca J, González-Gay M, Martin J. THU0015 Association of acid phosphatase locus 1*C ALLELE with the risk of cardiovascular events in rheumatoid arthritis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1980] [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: 11/03/2022]
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Teruel M, Simeon CP, Broen J, Carreira P, García de la Peña P, Aguirre MÁ, Beretta L, Witte T, Kreuter A, Vonk MC, Voskuyl AE, Schuerwegh AJ, Radstake TRDJ, Martin J. The role of the NLRP1 gene in systemic sclerosis: a replication study. Clin Exp Rheumatol 2013; 31:187-188. [PMID: 23380025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 09/05/2012] [Indexed: 06/01/2023]
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García-Lozano JR, Torres-Agrela B, Montes-Cano MA, Ortiz-Fernández L, Conde-Jaldón M, Teruel M, García A, Núñez-Roldán A, Martín J, González-Escribano MF. Association of the AIRE gene with susceptibility to rheumatoid arthritis in a European population: a case control study. Arthritis Res Ther 2013; 15:R11. [PMID: 23320549 PMCID: PMC3672784 DOI: 10.1186/ar4141] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 01/03/2013] [Accepted: 01/09/2013] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION AIRE is a transcriptional regulator playing a functional role in thymocyte education and negative selection by controlling the expression of peripheral antigens in the thymus. Recently, the AIRE gene was identified as a genetic risk factor for rheumatoid arthritis (RA) in genome wide association (GWA) studies performed in the Japanese population. According to the available data this association is restricted to the Asian population. However, different facts could influence the lack of association in Caucasian populations. The aim of this study was to further investigate the possible role of the AIRE gene in susceptibility to RA in a Caucasian population. METHODS A total of 472 Spanish Caucasian RA patients and 475 ethnically matched controls were included in the study. Three single-nucleotide polymorphisms (SNPs) (rs2776377, rs878081 and rs1055311) with a minor allele frequency>0.05 in the Caucasian population which were not included in the high-throughput platforms used in the GWA studies performed in susceptibility to RA, and two SNPs (rs2075876 and rs1800520) associated with RA in the Japanese population, were selected and genotyped using TaqMan assays. RESULTS No significant differences in the distribution of the alleles of rs2776377, rs2075876, rs1055311 and rs1800520 SNPs between RA patients and controls were observed. Nevertheless, the frequency of the C allele of rs878081 was significantly higher among RA patients (80.5% vs. 74.6% in the control group, pc=0.012, OR=1.41, 95%CI 1.13-1.75). Regarding the distribution of the rs878081 genotypes, a higher frequency of CC homozygous individuals was found in the RA patient group (65.56% vs. 56.47% in the control group, pc=0.013, OR=1.47, 95%CI 1.12-1.93). The in silico analysis predicted lower affinity to the binding-site of a motif of the transcription NF-κB family and lower transcription levels of AIRE gene for the rs878081C risk variant CONCLUSIONS Our findings suggest that the AIRE gene is associated with susceptibility to RA in the Spanish population. Probably, this association has not been detected in the European population in the GWA studies because the earliest high-throughput platforms did not include SNP suitable markers (e.g. rs878081).
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Affiliation(s)
- José-Raúl García-Lozano
- Servicio de Inmunología, Hospital Universitario Virgen del Rocío (IBiS, CSIC, US), Avenida Manuel Siurot s/n, 41013-Sevilla, Spain
| | - Belén Torres-Agrela
- Servicio de Inmunología, Hospital Universitario Virgen del Rocío (IBiS, CSIC, US), Avenida Manuel Siurot s/n, 41013-Sevilla, Spain
| | - Marco-Antonio Montes-Cano
- Servicio de Inmunología, Hospital Universitario Virgen del Rocío (IBiS, CSIC, US), Avenida Manuel Siurot s/n, 41013-Sevilla, Spain
| | - Lourdes Ortiz-Fernández
- Servicio de Inmunología, Hospital Universitario Virgen del Rocío (IBiS, CSIC, US), Avenida Manuel Siurot s/n, 41013-Sevilla, Spain
| | - Marta Conde-Jaldón
- Servicio de Inmunología, Hospital Universitario Virgen del Rocío (IBiS, CSIC, US), Avenida Manuel Siurot s/n, 41013-Sevilla, Spain
| | - María Teruel
- Instituto de Parasitología y Biomedicina "López Neyra", CSIC, Parque Tecnológico de Ciencias de la Salud, Avenida del Conocimiento s/n, Armilla, 18100-Granada, Spain
| | - Alicia García
- Unidad de Reumatología, Hospital Universitario Virgen del Rocío, Avenida Manuel Siurot s/n, 41013-Sevilla, Spain
| | - Antonio Núñez-Roldán
- Servicio de Inmunología, Hospital Universitario Virgen del Rocío (IBiS, CSIC, US), Avenida Manuel Siurot s/n, 41013-Sevilla, Spain
| | - Javier Martín
- Instituto de Parasitología y Biomedicina "López Neyra", CSIC, Parque Tecnológico de Ciencias de la Salud, Avenida del Conocimiento s/n, Armilla, 18100-Granada, Spain
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Teruel M, Martin JE, Ortego-Centeno N, Jiménez Alonso J, Sánchez-Román J, de Ramón E, Francisca Gonzalez-Escribano M, Pons-Estel BA, D’Alfonso S, Sebastiani GD, Witte T, Bottini N, González-Gay MA, Alarcón-Riquelme ME, Martin J. Erratum to “Novel association of acid phosphatase locus 1*C allele with systemic lupus erythematosus” [Human Immunology 73 (2012) 107–110]. Hum Immunol 2012. [DOI: 10.1016/j.humimm.2012.07.002] [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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Teruel M, Simeon CP, Broen J, Vonk MC, Carreira P, Camps MT, García-Portales R, Delgado-Frías E, Gallego M, Espinosa G, Beretta L, Airó P, Lunardi C, Riemekasten G, Witte T, Krieg T, Kreuter A, Distler JHW, Hunzelmann N, Koeleman BP, Voskuyl AE, Schuerwegh AJ, González-Gay MA, Radstake TRDJ, Martin J. Analysis of the association between CD40 and CD40 ligand polymorphisms and systemic sclerosis. Arthritis Res Ther 2012; 14:R154. [PMID: 22731751 PMCID: PMC3446540 DOI: 10.1186/ar3890] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 05/23/2012] [Accepted: 06/25/2012] [Indexed: 01/07/2023] Open
Abstract
Introduction The aim of the present study was to investigate the possible role of CD40 and CD40 ligand (CD40LG) genes in the susceptibility and phenotype expression of systemic sclerosis (SSc). Methods In total, 2,670 SSc patients and 3,245 healthy individuals from four European populations (Spain, Germany, The Netherlands, and Italy) were included in the study. Five single-nucleotide polymorphisms (SNPs) of CD40 (rs1883832, rs4810485, rs1535045) and CD40LG (rs3092952, rs3092920) were genotyped by using a predesigned TaqMan allele-discrimination assay technology. Meta-analysis was assessed to determine whether an association exists between the genetic variants and SSc or its main clinical subtypes. Results No evidence of association between CD40 and CD40LG genes variants and susceptibility to SSc was observed. Similarly, no significant statistical differences were observed when SSc patients were stratified by the clinical subtypes, the serologic features, and pulmonary fibrosis. Conclusions Our results do not suggest an important role of CD40 and CD40LG gene polymorphisms in the susceptibility to or clinical expression of SSc.
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Affiliation(s)
- María Teruel
- Instituto de Parasitología y Biomedicina López-Neyra, IPBLN-CSIC, Avda, del Conocimiento s/n, 18010, Granada, SpainArmilla (Granada), Spain.
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Teruel M, Martin JE, Gómez-García M, Cardeña C, Rodrigo L, Nieto A, Alcain G, Cueto I, López-Nevot MA, Martin J. Lack of association of ACP1 gene with inflammatory bowel disease: a case-control study. ACTA ACUST UNITED AC 2012; 80:61-4. [PMID: 22428720 DOI: 10.1111/j.1399-0039.2012.01861.x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The red cell acid phosphatease (ACP1) gene, which encodes a low molecular weight phosphotyrosine phosphatase (LMW-PTP), has been suggested as a common genetic factor of autoimmunity. In the present study, we aimed to investigate the possible influence of ACP1 polymorphisms in the susceptibility of inflammatory bowel disease (IBD). A total of 1271 IBD Spanish patients [720 Crohn's disease (CD) and 551 ulcerative colitis (UC)] and 1877 healthy subjects were included. Four single-nucleotide polymorphisms (SNPs), rs10167992, rs11553742, rs7576247 and rs3828329, were genotyped using TaqMan SNP genotyping assays. Common ACP1 alleles (i.e. ACP1*A, ACP1*B and ACP1*C) were determined by two of these SNPs. After the analysis, no evidence of association of the ACP1 genetic variants was found with CD or UC. Therefore, our results suggest that the ACP1 gene may not play a relevant role in the development of IBD.
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Affiliation(s)
- M Teruel
- Instituto de Parasitología y Biomedicina López-Neyra, IPBLN-CSIC, Armilla, Granada, Spain.
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Teruel M, Martin JE, Ortego-Centeno N, Jiménez-Alonso J, Sánchez-Román J, de Ramón E, Gonzalez-Escribano MF, Pons-Estel BA, D'Alfonso S, Sebastiani GD, Witte T, Bottini N, González-Gay MA, Alarcón-Riquelme ME, Martin J. Novel association of acid phosphatase locus 1*C allele with systemic lupus erythematosus. Hum Immunol 2012; 73:107-10. [DOI: 10.1016/j.humimm.2011.10.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 09/07/2011] [Accepted: 10/07/2011] [Indexed: 10/16/2022]
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Chen-Xu M, Topless R, McKinney C, Merriman ME, Phipps-Green A, Dalbeth N, Gow PJ, Harrison AA, Highton J, Jones PB, Nissen M, Smith MD, van Rij A, Jones GT, Rodriguez-Rodriguez L, Fernandez-Gutierrez B, Teruel M, Balsa A, Pascual-Salcedo D, Ortiz AM, Gonzalez-Gay MA, Steer S, Maehlen M, Lie B, Wordsworth BP, Stamp LK, Martin J, Merriman TR. Replication of association of the interleukin 23 receptor rs1343151 variant with rheumatoid arthritis in Caucasian sample sets. Ann Rheum Dis 2011; 71:155-7. [PMID: 21926184 DOI: 10.1136/annrheumdis-2011-200591] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Teruel M, Catalano R, Salomón L. Albendazole Sulphoxide Administered Prior to Mating andits Relation with Fertilization and Mouse Embryo Development. INT J MORPHOL 2011. [DOI: 10.4067/s0717-95022011000300024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Teruel M, Martin JE, González-Juanatey C, López-Mejias R, Miranda-Filloy JA, Blanco R, Balsa A, Pascual-Salcedo D, Rodriguez-Rodriguez L, Fernández-Gutierrez B, Ortiz AM, González-Alvaro I, Gómez-Vaquero C, Bottini N, Llorca J, González-Gay MA, Martin J. Association of acid phosphatase locus 1*C allele with the risk of cardiovascular events in rheumatoid arthritis patients. Arthritis Res Ther 2011; 13:R116. [PMID: 21767392 PMCID: PMC3239354 DOI: 10.1186/ar3401] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 06/09/2011] [Accepted: 07/18/2011] [Indexed: 01/14/2023] Open
Abstract
Introduction Acid phosphatase locus 1 (ACP1) encodes a low molecular weight phosphotyrosine phosphatase implicated in a number of different biological functions in the cell. The aim of this study was to determine the contribution of ACP1 polymorphisms to susceptibility to rheumatoid arthritis (RA), as well as the potential contribution of these polymorphisms to the increased risk of cardiovascular disease (CV) observed in RA patients. Methods A set of 1,603 Spanish RA patients and 1,877 healthy controls were included in the study. Information related to the presence/absence of CV events was obtained from 1,284 of these participants. All individuals were genotyped for four ACP1 single-nucleotide polymorphisms (SNPs), rs10167992, rs11553742, rs7576247, and rs3828329, using a predesigned TaqMan SNP genotyping assay. Classical ACP1 alleles (*A, *B and *C) were imputed with SNP data. Results No association between ACP1 gene polymorphisms and susceptibility to RA was observed. However, when RA patients were stratified according to the presence or absence of CV events, an association between rs11553742*T and CV events was found (P = 0.012, odds ratio (OR) = 2.62 (1.24 to 5.53)). Likewise, the ACP1*C allele showed evidence of association with CV events in patients with RA (P = 0.024, OR = 2.43). Conclusions Our data show that the ACP1*C allele influences the risk of CV events in patients with RA.
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Affiliation(s)
- María Teruel
- Instituto de Parasitología y Biomedicina López-Neyra, IPBLN-CSIC, Avd, del Conocimiento s/n, 18010, Granada, Spain.
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Gorlova O, Martin JM, Rueda B, Koeleman BPC, Ying J, Teruel M, Diaz-Gallo LM, Broen JC, Vonk MC, Simeon CP, Alizadeh BZ, Coenen MJH, Voskuyl AE, Schuerwegh AJ, van Riel PLCM, Vanthuyne M, van ‘t Slot R, Italiaander A, Ophoff RA, Hunzelmann N, Fonollosa V, Ortego-Centeno N, González-Gay MA, García-Hernández FJ, González-Escribano MF, Airo P, van Laar J, Worthington J, Hesselstrand R, Smith V, De Keyser F, Houssiau F, Chee MM, Madhok R, Shiels P, Westhovens R, Kreuter A, de Baere E, Witte T, Padyukov L, Nordin A, Scorza R, Lunardi C, Lie BA, Hoffmann-Vold AM, García de la Peña P, Carreira P, Varga J, Hinchcliff M, Lee AT, Gourh P, Amos CI, Riemekasten G, Herrick A, Beretta L, Fonseca C, Denton CP, Gregersen PK, Agarwal S, Assassi S, Tan FK, Arnett FC, Radstake TRDJ, Mayes MD, Martin J. Identification of novel genetic markers associated with the clinical phenotypes of systemic sclerosis through a genome wide association strategy. Lab Invest 2010. [PMCID: PMC3007743 DOI: 10.1186/1479-5876-8-s1-o1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Teruel M, Sørensen JG, Loeschcke V, Cabrero J, Perfectti F, Camacho JPM. Level of heat shock proteins decreases in individuals carrying B-chromosomes in the grasshopper Eyprepocnemis plorans. Cytogenet Genome Res 2010; 132:94-9. [PMID: 20798487 DOI: 10.1159/000319621] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2010] [Indexed: 11/19/2022] Open
Abstract
We analyzed the effect of B-chromosome presence on expression level of heat shock protein 70 (Hsp70) in cerebral ganglion and gonad in both males and females of the grasshopper Eyprepocnemis plorans. Two natural Spanish populations, Salobreña (Granada) and Torrox (Málaga) were assayed, the former harbouring a neutralized (non-driving) B-chromosome (B(2)) and the latter a parasitic (driving) B-chromosome (B(24)). The analysis was performed by Western blotting, immunostaining and densitometric measuring expression level of the Hsp70 family in adult individuals. The results showed that Hsp70 levels of testis were significantly higher in Salobreña than Torrox, and were significantly lower in testes of B-carrying males from both populations. A similar effect was observed in the ovary of females from Torrox. No effect was, however, observed in cerebral ganglia in any sex or population. B-chromosome effects in Torrox showed a dose-dependent pattern. The results point to an interesting interaction between B-chromosome and stress protein expression in reproductive tissue.
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Affiliation(s)
- M Teruel
- Departamento de Genética, Universidad de Granada, Granada, Spain
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Blanco-Kelly F, Matesanz F, Alcina A, Teruel M, Díaz-Gallo LM, Gómez-García M, López-Nevot MA, Rodrigo L, Nieto A, Cardeña C, Alcain G, Díaz-Rubio M, de la Concha EG, Fernandez O, Arroyo R, Martín J, Urcelay E. CD40: novel association with Crohn's disease and replication in multiple sclerosis susceptibility. PLoS One 2010; 5:e11520. [PMID: 20634952 PMCID: PMC2902513 DOI: 10.1371/journal.pone.0011520] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 06/11/2010] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND A functional polymorphism located at -1 from the start codon of the CD40 gene, rs1883832, was previously reported to disrupt a Kozak sequence essential for translation. It has been consistently associated with Graves' disease risk in populations of different ethnicity and genetic proxies of this variant evaluated in genome-wide association studies have shown evidence of an effect in rheumatoid arthritis and multiple sclerosis (MS) susceptibility. However, the protective allele associated with Graves' disease or rheumatoid arthritis has shown a risk role in MS, an effect that we aimed to replicate in the present work. We hypothesized that this functional polymorphism might also show an association with other complex autoimmune condition such as inflammatory bowel disease, given the CD40 overexpression previously observed in Crohn's disease (CD) lesions. METHODOLOGY Genotyping of rs1883832C>T was performed in 1564 MS, 1102 CD and 969 ulcerative colitis (UC) Spanish patients and in 2948 ethnically matched controls by TaqMan chemistry. PRINCIPAL FINDINGS The observed effect of the minor allele rs1883832T was replicated in our independent Spanish MS cohort [p = 0.025; OR (95% CI) = 1.12 (1.01-1.23)]. The frequency of the minor allele was also significantly higher in CD patients than in controls [p = 0.002; OR (95% CI) = 1.19 (1.06-1.33)]. This increased predisposition was not detected in UC patients [p = 0.5; OR (95% CI) = 1.04 (0.93-1.17)]. CONCLUSION The impact of CD40 rs1883832 on MS and CD risk points to a common signaling shared by these autoimmune conditions.
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Affiliation(s)
- Fiona Blanco-Kelly
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
| | - Fuencisla Matesanz
- Instituto Parasitología y Biomedicina “López Neyra”, C. S. I. C., Granada, Spain
- Members of the Red Española de Esclerosis Múltiple (REEM), www.reem.es
| | - Antonio Alcina
- Instituto Parasitología y Biomedicina “López Neyra”, C. S. I. C., Granada, Spain
- Members of the Red Española de Esclerosis Múltiple (REEM), www.reem.es
| | - María Teruel
- Instituto Parasitología y Biomedicina “López Neyra”, C. S. I. C., Granada, Spain
| | - Lina M. Díaz-Gallo
- Instituto Parasitología y Biomedicina “López Neyra”, C. S. I. C., Granada, Spain
| | - María Gómez-García
- Servicio de Digestivo, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Miguel A. López-Nevot
- Servicio de Inmunología, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Luis Rodrigo
- Servicio de Digestivo, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Antonio Nieto
- Servicio de Inmunología, Hospital Puerta del Mar, Cádiz, Spain
| | - Carlos Cardeña
- Servicio de Digestivo, Hospital Clínico San Cecilio, Granada, Spain
| | - Guillermo Alcain
- Servicio de Digestivo, Hospital Virgen de la Victoria, Málaga, Spain
| | | | - Emilio G. de la Concha
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
- Members of the Red Española de Esclerosis Múltiple (REEM), www.reem.es
| | - Oscar Fernandez
- Servicio de Neurología, Instituto de Neurociencias Clínicas, Hospital Carlos Haya, Málaga, Spain
- Members of the Red Española de Esclerosis Múltiple (REEM), www.reem.es
| | - Rafael Arroyo
- Multiple Sclerosis Unit, Neurology Department, Hospital Clínico San Carlos, Madrid, Spain
- Members of the Red Española de Esclerosis Múltiple (REEM), www.reem.es
| | - Javier Martín
- Instituto Parasitología y Biomedicina “López Neyra”, C. S. I. C., Granada, Spain
| | - Elena Urcelay
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
- Members of the Red Española de Esclerosis Múltiple (REEM), www.reem.es
- * E-mail:
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Teruel M, Cabrero J, Perfectti F, Camacho JPM. B chromosome ancestry revealed by histone genes in the migratory locust. Chromosoma 2009; 119:217-25. [PMID: 20016909 DOI: 10.1007/s00412-009-0251-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2009] [Revised: 11/25/2009] [Accepted: 11/30/2009] [Indexed: 12/01/2022]
Abstract
In addition to the standard set of chromosomes (A), about 15% of eukaryote genomes carry B chromosomes. In most cases, B chromosomes behave as genomic parasites being detrimental for the individuals carrying them and prospering in natural populations because of transmission advantages (drive). B chromosomes are mostly made up of repetitive DNA sequences, especially ribosomal DNA (rDNA), satellite DNA and mobile elements. In only two cases have B chromosomes been shown to carry protein-coding genes. Although some B chromosomes seem to have derived from interspecific hybridisation, the most likely source of B chromosomes is the host genome itself, but the specific A chromosome being the B ancestor has not been identified in any B-containing species. Here, we provide strong evidence for B chromosome ancestry in the migratory locust, based on the location of genes for the H3 and H4 histones in the B chromosome and a single A chromosome pair (i.e. the eighth in order of decreasing size). The high DNA sequence similarity of A and B chromosome H3-H4 genes supports B-origin from chromosome 8. The higher variation shown by B sequences, compared to A sequences, suggests that B chromosome sequences are most likely inactive and thus less subjected to purifying selection. Estimates of time of divergence for histone genes from A and B chromosomes suggest that B chromosomes are quite old (>750,000 years), showing the B-chromosome ability to persist in natural populations for long periods of time.
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Affiliation(s)
- María Teruel
- Departamento de Genética, Universidad de Granada, 18071, Granada, Spain
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Teruel M, Cabrero J, Perfectti F, Acosta MJ, Sánchez A, Camacho JPM. Microdissection and chromosome painting of X and B chromosomes in the grasshopper Eyprepocnemis plorans. Cytogenet Genome Res 2009; 125:286-91. [PMID: 19864892 DOI: 10.1159/000235935] [Citation(s) in RCA: 14] [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] [Accepted: 06/10/2009] [Indexed: 11/19/2022] Open
Abstract
The relative location of 2 repetitive DNAs, i.e. ribosomal (rDNA) and a tandemly repeated satellite DNA (satDNA), with respect to the centromere, suggested that B chromosomes in the grasshopper Eyprepocnemis plorans derived intraspecifically from the X chromosome. To test this hypothesis, we microdissected X and B chromosomes and amplified the obtained DNA by 2 different procedures, the conventional DOP-PCR method and the single-cell whole-genome amplification GenomePlex method. We then generated DNA probes to perform chromosome painting. Our results have confirmed that X and B chromosomes share many DNA sequences between them and with most of the autosomes, especially at locations where the satDNA and rDNA reside, in consistency with previous information. This supports the hypothesis of an intraspecific origin of B chromosomes in E. plorans. Nevertheless, the present results did not help to clarify whether Bs were derived from the X chromosome or else from 1 or more autosomes.
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Affiliation(s)
- M Teruel
- Departamento de Genética, Universidad de Granada, Granada, Spain
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Cabrero J, López-León MD, Teruel M, Camacho JPM. Chromosome mapping of H3 and H4 histone gene clusters in 35 species of acridid grasshoppers. Chromosome Res 2009; 17:397-404. [PMID: 19337846 DOI: 10.1007/s10577-009-9030-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Revised: 01/15/2009] [Accepted: 01/15/2009] [Indexed: 11/29/2022]
Affiliation(s)
- Josefa Cabrero
- Departamento de Genética, Universidad de Granada, 18071, Granada, Spain
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Teruel M, Cabrero J, Perfectti F, Alché J, Camacho J. Abnormal Spermatid Formation in the Presence of the Parasitic B24Chromosome in the Grasshopper Eyprepocnemis plorans. Sex Dev 2009; 3:284-9. [DOI: 10.1159/000253307] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2009] [Indexed: 11/19/2022] Open
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Callejas S, Alberio R, Cabodevila J, Aller J, Catalano R, Teruel M, Dulout F. Effect of progesterone administration on the ovarian response to superovulatory treatments in cattle. Anim Reprod Sci 2008; 107:9-19. [PMID: 17644282 DOI: 10.1016/j.anireprosci.2007.06.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2006] [Accepted: 06/11/2007] [Indexed: 10/23/2022]
Abstract
To evaluate ovarian response in Angus cows previously treated with progesterone (P4), animals were randomly assigned to two groups: T600 group (n=14), 600 mg of P4/day. P4 was injected from days 3 to 7 of the estrous cycle. On day 7, superovulatory treatments began. The control group (n=12) was given vehicle only. The superovulatory treatments in the control group began on days 7-9 of the estrous cycle. The superovulatory total treatment dose of 400mg NIH FSH P1 was given twice a day over a 4-day period. Ultrasonography of the ovaries was conducted 3 days preceding the initiation of superovulatory treatment, every 24h. In both groups, an additional ultrasonographic evaluation was made at 24h after the end of superovulatory treatment. Blood samples were collected 4 days preceding the initiation of superovulatory treatment, every 24h. Additional samples were taken from the P600 group for 12 day after of initiation of superovulatory treatment every 24h, except on the fifth day after the initiation of superovulatory treatment. In the P600 group, P4 concentrations were greater than in the control group (P<0.01) and remained over 1 ng/ml up to day 11 after beginning of superovulatory treatment. The diameter of the dominant follicle was larger in the animals of the control group (P<0.01). Cows of the P600 group had a greater number of Class I (3-4mm) follicles (P<0.01). A significant day and treatment effect (P<0.01) were observed in Class II (5-9 mm) follicles. Effects due to treatment on the number of Class III follicles (P<0.05) were observed. In the P600 group, no estrous post-superovulatory was observed and there were no ovulations that occurred. Conversely, 100% of the cows of the control group showed estrous. In the P600 group, there were a greater number of Class III follicles (P<0.01) and a lesser number of Class II follicles (P<0.05) at 24h after the end of superovulatory. In the control group, 66.7% of the cows responded to superovulatory treatments. In conclusion, the daily administration of 600 mg of P4, from days 3 to 7 of the estrous cycle, produces an increase of plasma concentrations of this hormone from day 4, resulting in changes in follicular dynamics (absence of follicles greater than 10mm of diameter and an increase of the population of Class I follicles). As to the ovarian stimulation using Folltropin V in animals receiving a daily injection of 600 mg of P4 from days 3 to 7 of the estrous cycle, a greater population of follicles>or=10mm developed by 24h after superovulatory treatments were completed.
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Affiliation(s)
- S Callejas
- Area de Reproducción (FISFARVET), Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Campus Universitario, Paraje Arroyo Seco S/N, B7000GHG Tandil, Buenos Aires, Argentina.
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Catena M, Teruel M, Morán P, Chiapparrone M, Echevarría H, Monteavaro C, Soto P. Evaluación del desarrollo preimplantacional de embriones murinos in vitro en presencia de Campylobacter fetus venerealis. ACTA ACUST UNITED AC 2008. [DOI: 10.30972/vet.1921888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
<p>La campylobacteriosis genital bovina es una enfermedad distribuida mundialmente que causa infertilidad y aborto. Los mecanismos relacionados con la patogenia de Campylobacter fetus sobre el embrión bovino son aún poco conocidos. Para estudiar el efecto de Campylobacter fetus venerealis en el desarrollo embrionario se utilizaron mórulas y blastocistos murinos. Las mórulas se cultivaron en medio Ham F10 como grupo control (GA; n: 97), más la adición de Campylobacter fetus venerealis (GB; n: 129), adicionado con filtrado libre de células (GC; n: 119) y con caldo Brucella (GD; n: 94). Los blastocistos se cultivaron en medio MEM, grupo control (G1: n: 24), y en MEM más suspensión de Campylobacter fetus venerealis, grupo desafiado (G2; n: 35). A partir de mórulas se evaluaron los porcentajes de diferenciación y hatching. En blastocistos se evaluaron los porcentajes de: hatching, hatched, adhesión y expansión. Los resultados se analizaron mediante Chi². La diferenciación resultó menor a las 24 horas para los grupos GB (66,6%), GC (65,3%) y GD (67,0%) respecto al control (82,5%; p<0,05). A las 48 horas sólo el grupo GC fue menor al control (70,7% y 89,6% respectivamente; p<0,05). El porcentaje de hatching a las 48 horas fue superior en los grupos GB (71,2%) y GC (70,3%) respecto al control (49,4%; p>0,05). A las 72 horas el hatching resultó superior en los grupos GB (79,2%) y GC (83,5%) comparado con el control (65,5%); el GD no<br />mostró diferencias con el control tanto a las 48 como a las 72 horas de cultivo (p>0,05). En el ensayo de blastocistos no hubo diferencias entre grupos para ninguno de los parámetros evaluados. Se concluye que en este modelo experimental, Campylobacter fetus venerealis no afectó negativamente el desarrollo temprano de embriones murinos, aunque los porcentajes de diferenciación y hatching en GC mostraron diferencias respecto al control.</p>
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Cabrero J, Teruel M, Carmona FD, Jiménez R, Camacho JPM. Histone H3 lysine 9 acetylation pattern suggests that X and B chromosomes are silenced during entire male meiosis in a grasshopper. Cytogenet Genome Res 2007; 119:135-42. [PMID: 18160793 DOI: 10.1159/000109630] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Accepted: 06/11/2007] [Indexed: 11/19/2022] Open
Abstract
The facultative heterochromatic X chromosome in leptotene spermatocytes of the grasshopper Eyprepocnemis plorans showed marked hypoacetylation for lysine 9 in the H3 histone (H3-K9) with no sign of histone H2AX phosphorylation. Since H3-K9 hypoacetylation precedes the meiotic appearance of phosphorylated H2AX (gamma-H2AX), which marks the beginning of recombinational DNA double-strand breaks (DSBs), it seems that meiotic sex-chromosome inactivation (MSCI) in this grasshopper occurs prior to the beginning of recombination and hence synapsis (which in this species begins later than recombination). In addition, all constitutively heterochromatic chromosome regions harbouring a 180-bp tandem-repeat DNA and rDNA (B chromosomes and pericentromeric regions of A chromosomes) were H3-K9 hypoacetylated at early leptotene even though they will synapse at subsequent stages. This also suggests that meiotic silencing in this grasshopper might be independent of synapsis. The H3-K9 hypoacetylated state of facultative and constitutive heterochromatin persisted during subsequent meiotic stages and was even apparent in round spermatids. Finally, the fact that B chromosomes are differentially hypoacetylated in testis and embryo interphase cells suggests that they might be silenced early in development and remain this way for most (or all) life-cycle stages.
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Affiliation(s)
- J Cabrero
- Departamento de Genética, Universidad de Granada, Granada, Spain
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Abdelaziz M, Teruel M, Chobanov D, Camacho JPM, Cabrero J. Physical mapping of rDNA and satDNA in A and B chromosomes of the grasshopper Eyprepocnemis plorans from a Greek population. Cytogenet Genome Res 2007; 119:143-6. [PMID: 18160794 DOI: 10.1159/000109631] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2007] [Accepted: 04/05/2007] [Indexed: 11/19/2022] Open
Abstract
Adult males and females of the grasshopper Eyprepocnemis plorans from a Greek population were analysed by C-banding, silver impregnation and double FISH for two DNA probes, i.e. ribosomal DNA (rDNA) and a 180-bp tandem repeat DNA (satDNA). This population shows characteristics of rDNA location in A chromosomes that are intermediate between those previously reported for eastern (Caucasus) and western (Spain and Morocco) populations. The four rDNA clusters revealed by FISH in chromosomes X, 9, 10 and 11 in Greek specimens imply two more than the two observed in chromosomes 9 and 11 in the Caucasus, but less than the 12 observed in all chromosomes in Morocco. Remarkably, the X chromosome bears one of the new rDNA locations in Greece with respect to the Caucasus, but it appears to be inactive, in contrast to X chromosomes in western populations, which are usually active. B chromosomes were very frequent in the Greek population, and three variants differing in size were observed, all of these being largely composed of rDNA, with the exception of a small pericentromeric satDNA cluster. The high B frequency suggests that B chromosomes in this population might behave parasitically, in resemblance to Bs in western populations.
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Affiliation(s)
- M Abdelaziz
- Departamento de Genética, Universidad de Granada, Spain
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Teruel M, Cabrero J, Perfectti F, Camacho JPM. Nucleolus size variation during meiosis and NOR activity of a B chromosome in the grasshopper Eyprepocnemis plorans. Chromosome Res 2007; 15:755-65. [PMID: 17609866 DOI: 10.1007/s10577-007-1159-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2007] [Revised: 05/03/2007] [Accepted: 05/03/2007] [Indexed: 10/23/2022]
Abstract
The number of nucleoli and nucleolar area were measured in meiotic cells from males of the grasshopper Eyprepocnemis plorans collected in three natural populations. Number of nucleoli per cell showed no significant correlation among cells in different meiotic stages, but there was strong positive correlation for nucleolar area between leptotene and interkinesis cells in individuals from distant populations (Salobreña in Spain, and Smir in Morocco). No correlation was, however, observed for both parameters between the meiotic stages analysed in individuals from the population of Torrox (Spain). The number of nucleoli at leptotene was about double the number at interkinesis, as expected from the double ploidy level at leptotene and the corresponding double number of rDNA clusters. Leptotene nucleolar area, however, was about fourfold that in interkinesis, presumably due to higher requirements for ribosome biogenesis in meiosis I than meiosis II. In Torrox, diplotene cells showed a lower number of nucleoli but larger nucleolar area than in leptotene cells, suggesting an increase in nucleolus size during prophase I. Significant differences were found among populations for nucleolar area but not for number of nucleoli, the smallest nucleolar area being observed in Torrox, which is the population harbouring the most parasitic B chromosome variant. No clear effects on nucleolar area or number of nucleoli were associated with the B-chromosome number. However, B-chromosome effects on the nucleolar area were apparent in the Torrox population when data were analysed with respect to a B-chromosome odd-even pattern in leptotene and interkinesis cells. However, in diplotene cells no odd-even pattern was observed for both nucleolar parameters, suggesting that the increase in nucleolar size from leptotene to diplotene dilutes the leptotene odd-even pattern. The rDNA distally located in the B chromosome was associated with a nucleolus in 6.5% out of the 247 diplotene cells analysed. The implications of these findings are discussed in the context of B chromosomes as stress-causing genome parasites and the nucleolus as a sensor of stress.
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Affiliation(s)
- María Teruel
- Departamento de Genética, Universidad de Granada, 18071, Granada, Spain
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Cabrero J, Teruel M, Carmona FD, Camacho JPM. Histone H2AX phosphorylation is associated with most meiotic events in grasshopper. Cytogenet Genome Res 2007; 116:311-5. [PMID: 17431330 DOI: 10.1159/000100416] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Accepted: 12/22/2006] [Indexed: 11/19/2022] Open
Abstract
It is widely accepted that the H2AX histone in its phosphorylated form (gamma-H2AX) is related to the repair of DNA double-strand breaks (DSBs). In several organisms, gamma-H2AX presence has been demonstrated in meiotic processes such as recombination and sex chromosome inactivation during prophase I (from leptotene to pachytene). To test whether gamma-H2AX is present beyond pachytene, we have analysed the complete sequence of changes in H2AX phosphorylation during meiosis in grasshopper, a model organism for meiotic studies at the cytological level. We show the presence of phosphorylated H2AX during most of meiosis, with the exception only of diplotene and the end of each meiotic division. During the first meiotic division, gamma-H2AX is associated with i) recombination, as deduced from its presence in leptotene-zygotene over all chromosome length, ii) X chromosome inactivation, since at pachytene gamma-H2AX is present in the X chromosome only, and iii) chromosome segregation, as deduced from gamma-H2AX presence in centromere regions at first metaphase-anaphase. During second meiotic division, gamma-H2AX was very abundant at most chromosome lengths from metaphase to telophase, suggesting its possible association with the maintenance of chromosome condensation and segregation.
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Affiliation(s)
- J Cabrero
- Departamento de Genética, Universidad de Granada, Granada, Spain
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Callejas SS, Alberio R, Cabodevila J, Dulout F, Aller J, Catalano R, Teruel M. Influence of different doses of progesterone treatments on ovarian follicle status in beef cows. Anim Reprod Sci 2005; 91:191-200. [PMID: 15941628 DOI: 10.1016/j.anireprosci.2005.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2004] [Revised: 03/11/2005] [Accepted: 03/14/2005] [Indexed: 11/16/2022]
Abstract
To determine a dose of progesterone (P4) that allow ovarian follicular wave control, Aberdeen Angus cows were randomly assigned into four groups: T600 (n=5), 600 mg of P4/day; T400 (n=5), 400 mg of P4/day; T200 (n=4), 200mg of P4/day and Control (n=4) (excipient only). Progesterone was injected from day 3 to 9 of estrous cycle. Ultrasonographies and blood sample collections were performed daily from day 2 to 10 and on day 15 of the estrous cycle. Additionally, an ultrasonographic study was conducted on day 13. Progesterone concentrations were different among all groups (P<0.01). The diameter of the dominant follicle was greater for control than for T200, T400 and T600 groups (P<0.01); there was no difference between T200 and T400 (P>0.05), but they had a greater diameter follicle than the T600 group (P<0.01). The growth rate of the dominant follicle between day 3 and 7 of estrous cycle was greater for control group (1.63+/-0.3 mmday(-1)) than for T200 (0.56+/-0.19 mmday(-1), P<0.05), T400 (0.6+/-0.23 mmday(-1), P<0.05) and T600 (0.11+/-0.13 mmday(-1), P<0.01) groups. The mean number of class I follicles (3-4mm) per day for the entire experimental period was less for the control group than for T200 (P<0.05), T400 and T600 (P<0.01) groups (3.7+/-1.3; 5.3+/-1.3; 6.6+/-1.8 and 8.1+/-1.9, respectively). The mean number for the T200 group was less than for T600 (P<0.05) and similar for T400 and T600 groups (P>0.05). The number of class III follicles was greater for control group than for the other groups (P<0.01). T200 and T400 groups had similar numbers of class III follicles (P>0.05) and both had greater numbers of follicles than the T600 group (P<0.05). The diameter of the corpus luteum of the T600 group (15.8+/-1.6 mm) was less than for control (21.0+/-2.5 mm, P<0.01), T200 (19.3+/-2.7 mm, P<0.01) and T400 (20.0+/-2.2 mm) groups (P<0.05). The mean diameter of corpus luteum of T200 was similar to T400 (P>0.05), but different from the control group (P<0.05). In conclusion, the daily intramuscular administration of 200mg or more of progesterone from day 3 to 9 of the estrous cycle indicates that plasma concentrations of progesterone can be used to modify the pattern of follicular development during the follicular wave. From day 5 of the estrous cycle, progesterone concentrations greater than 15 ng/ml (T600 group: 600 mg/day of progesterone from day 3 to 9 of the estrous cycle) inhibit dominant follicle development, increase the class I follicle populations (3-4 mm) and diminish the development of the corpus luteum.
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Affiliation(s)
- S S Callejas
- Area de Reproducción, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Campus Universitario, 7000 Tandil, Buenos Aires, Argentina.
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Camacho JPM, Perfectti F, Teruel M, López-León MD, Cabrero J. The odd-even effect in mitotically unstable B chromosomes in grasshoppers. Cytogenet Genome Res 2005; 106:325-31. [PMID: 15292611 DOI: 10.1159/000079307] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2003] [Accepted: 01/28/2004] [Indexed: 11/19/2022] Open
Abstract
The odd-even effect, by which B chromosomes are more detrimental in odd numbers, has been reported in plants and animals. In grasshoppers, there are only a few reports of this effect and all were referred to as traits related to the formation of aberrant meiotic products (AMPs). Here we review the existing information about B chromosome effects on AMPs, chiasma frequency and the number of active nucleolus organizer regions (NORs) per cell. Polysomy for A chromosomes and B chromosomes are two kinds of chromosome polymorphism frequently found in grasshoppers. In some aspects, e.g. meiotic behaviour and mitotic instability leading to individual mosaicism (in the case of mitotically unstable Bs), polysomic As show similar characteristics to B chromosomes. In fact, polysomy is regarded as one of the main mechanisms for B chromosome origin. Here we review some features of meiotic behaviour in known cases of polysomy and mitotically unstable Bs in grasshoppers, in looking for possible causes for the odd-even effect. In all these traits, the odd-even effect was apparent, although its appearance was not universal in any case, with variation among species or populations within the same species. The equational division and lagging of the extra chromosomes, when univalents, could favour the appearance of abnormal meiotic products, and the formation of bivalents, when there are two or more extra chromosomes, inhibits this process. Therefore, the odd-even effect might be a consequence of the concomitant operation of both aspects of extra chromosome meiotic behaviour. The possibility that the odd-even effect might result from an increase in cell stress generated by odd numbers is suggested.
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Affiliation(s)
- J P M Camacho
- Departamento de Genética, Universidad de Granada, Granada, Spain.
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Teruel M, Smith R, Catalano R. Growth factors and embryo development. BIOCELL 2000; 24:107-22. [PMID: 10979609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
In this review are cited and discussed the possible roles of growth factors on preimplantation embryo development of different species. In first term, is considered the mRNA detection in early stages of development. The distribution pattern was not uniform for the different peptides evaluated. For some of them, the mRNAs are detected at the oocyte stage and the level declines to the blastocyst stage, which suggests a maternal origin for them. For others, the level increased from 2-4 cells to blastocyst stage. On the other hand, transcripts of growth factor receptors have been detected in preimplantation embryos. This suggests that growth factors of maternal or embryo origin interact with specific receptors on preimplantation embryo surface and regulate the early development. On the other hand, culture media supplemented with different growth factors have been used to study the possible effects on in vitro development. Some investigators have found no effect. Others, however, have demonstrated changes in protein synthesis, cell number, differentiation and hatching processes. Embryo development modulation by growth factors probably involves a balance between stimulatory and inhibitory effects, although works are needed to determine the precise roles played by these polypeptides during early stages of mammalian development.
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Affiliation(s)
- M Teruel
- Facultad de Ciencias Veterinarias, U.N.C.P.B.A., Tandil, Argentina.
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Teruel M, Smith R. Effect of embryo density and growth factors on in vitro preimplantation development of mouse embryos. Acta Physiol Pharmacol Ther Latinoam 1997; 47:87-96. [PMID: 9339238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Embryo development depends on maternal and embryonic factors that may regulate genetic programs in early development. Effects of growth factors on proliferation, differentiation and morphogenesis along embryogenesis have been documented. However, studies have not established the role of growth factors in the preimplantational period. The purpose of this study was to investigate the possible effects of growth factors and embryo density on mouse preimplantation development in vitro. Two- and eight-cell CF-1 embryos were cultured individually or in groups of ten in HTF medium, alone or with EGF, TGF-beta 1 and IGF-I. Cleavage rate varied greatly with growth factors and increased significantly when eight-cell embryos were cultured in groups. On the other hand, when two-cell embryos were cultured in groups, the cleavage rate was slower than that obtained when embryos were individually cultured. The differentiation rate increased significantly in two-cell embryos cultured in groups (p < 0.05). EGF, TGF-beta 1 and IGF-I increased differentiation rates significantly in two-cell embryos individually cultured for 68 hours. The combination of EGF and TGF-beta 1 increased the differentiation rates significantly. The other combinations were not effective in modifying this parameter. Hatching rates increased in embryos cultured in groups (p < 0.05). TGF-beta 1 decreased this parameter significantly in two- or eight-cell embryos cultured in groups (p < 0.05). The data described in this report suggest that preimplantational mouse embryos produce some factor or factors that enhance its development, specially the differentiation and hatching rates. However, a functional role for polypeptide growth factors during preimplantational development has to be determined.
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Affiliation(s)
- M Teruel
- Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Tandil, Argentina
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de la Cuadra J, Teruel M, Teixidó P, Roma J. Assessment of the wheal size and skin blood flow of the erythema induced by histamine and its modification with cetirizine and ebastine: a crossover, double-blind study. Dermatology 1994; 188:131-4. [PMID: 7907893 DOI: 10.1159/000247117] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [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: 01/27/2023] Open
Abstract
In order to assess the antihistaminic power of cetirizine and ebastine, we designed a randomized, double-blind, crossover study, measuring their capacity to modify skin blood flow induced by a histamine prick test. The vasomotor response was compared using a laser Doppler flowmeter. Two hours after intake of the antihistaminic drug, there were significant differences between both drugs: at 4 h, the antihistaminic effect of cetirizine persists, whereas ebastine only showed moderate activity. The reduction of the cutaneous blood flow values (CBFV) showed good activity in both groups, but cetirizine was more potent and showed faster activity than ebastine.
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Affiliation(s)
- J de la Cuadra
- Dermatology Department, Hospital General Universitario de Valencia, Spain
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Teruel M, Bolufer P, Rodriguez A, Antonio P, Salabert MT. Plasma sex steroids and SHBG in patients with breast cancer and their relation to tumor oestrogen-dependency. Exp Clin Endocrinol 1989; 93:37-44. [PMID: 2737240 DOI: 10.1055/s-0029-1210834] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In order to evaluate the possible role of sex steroids in breast cancer and their relation to the presence of oestradiol receptors (ER), ER were quantified in 112 breast adenocarcinomas and 14 benign tumours. The sex hormones of the patients were determined in plasma: oestradiol (E2), progesterone, testosterone, androstenedione, as well as SHBG and gonadotrophins. The ER were evaluated in cytosolic and nuclear fractions. Steroids and gonadotrophins were determined by RIA. SHBG was determined by following a procedure of saturation with tritiated dihydrostestosterone. The mean levels of E2 in postmenopausal women with breast cancer was found to be significantly higher than of the control group. However, no significant variations for the rest of the steroids were seen among the patients with breast cancer and the control group or benign tumour. Nor was any relation found between the presence of ER and the hormonal steroids studied or SHBG. It is suggested that the possible influence of the sex steroids in the etiopathogenesis of breast cancer might be due to the greater production accompanied by a parallel metabolic clearance that would maintain their plasma levels.
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Affiliation(s)
- M Teruel
- Departamento de Biopatologia, Hospital La Fe, Valencia, Spain
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