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Reis J, Nogueira Costa I, Caeiro C, Costa A, Fernandes A, Gonçalves E, Tavares T, Moreira C, Barbosa M, Valente A, Costa M. 312TiP Impact of early palliative care integration on quality of life and symptom burden in patients with high-grade glioma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.445] [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: 11/01/2022] Open
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Oriol-Tordera B, Esteve-Codina A, Berdasco M, Rosás-Umbert M, Gonçalves E, Duran-Castells C, Català-Moll F, Llano A, Cedeño S, Puertas MC, Tolstrup M, Søgaard OS, Clotet B, Martínez-Picado J, Hanke T, Combadiere B, Paredes R, Hartigan-O'Connor D, Esteller M, Meulbroek M, Calle ML, Sanchez-Pla A, Moltó J, Mothe B, Brander C, Ruiz-Riol M. Epigenetic landscape in the kick-and-kill therapeutic vaccine BCN02 clinical trial is associated with antiretroviral treatment interruption (ATI) outcome. EBioMedicine 2022; 78:103956. [PMID: 35325780 PMCID: PMC8938861 DOI: 10.1016/j.ebiom.2022.103956] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/07/2022] [Accepted: 03/07/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The BCN02-trial combined therapeutic vaccination with a viral latency reversing agent (romidepsin, RMD) in HIV-1-infected individuals and included a monitored antiretroviral pause (MAP) as an efficacy read-out identifying individuals with an early or late (< or > 4weeks) viral-rebound. Integrated -omics analyses were applied prior treatment interruption to identify markers of virus control during MAP. METHODS PBMC, whole-genome DNA methylation and transcriptomics were assessed in 14 BCN02 participants, including 8 Early and 4 Late viral-rebound individuals. Chromatin state, histone marks and integration analysis (histone-3 acetylation (H3Ac), viral load, proviral levels and HIV-specific T cells responses) were included. REDUC-trial samples (n = 5) were included as a control group for RMD administration alone. FINDINGS DNA methylation imprints after receiving the complete intervention discriminated Early versus Late viral-rebound individuals before MAP. Also, differential chromatin accessibility and histone marks at DNA methylation level were detected. Importantly, the differential DNA methylation positions (DMPs) between Early and Late rebounders before MAP were strongly associated with viral load, proviral levels as well as the HIV-specific T-cell responses. Most of these DMPs were already present prior to the intervention and accentuated after RMD infusion. INTERPRETATION This study identifies host DNA methylation profiles and epigenetic cascades that are predictive of subsequent virus control in a kick-and-kill HIV cure strategy. FUNDING European Union Horizon 2020 Framework Programme for Research and Innovation under Grant Agreement N°681137-EAVI2020 and N°847943-MISTRAL, the Ministerio de Ciencia e Innovación (SAF2017_89726_R), and the National Institutes of Health-National Institute of Allergy and Infectious Diseases Program Grant P01-AI131568.
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Affiliation(s)
- Bruna Oriol-Tordera
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia, Universitat Autònoma de Barcelona, Av. de Can Domènech 737, Cerdanyola del Vallès, Barcelona 08193, Spain
| | - Anna Esteve-Codina
- Centro Nacional de Análisis Genómico (CNAG), Barcelona Science Park - Tower I, Carrer de Baldiri Reixac 4, Barcelona 08028, Spain; Universitat Pompeu Fabra (UPF), Plaça de la Mercè 10-12, Barcelona 08002, Spain
| | - María Berdasco
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute, Vinguda de la Granvia de l'Hospitalet 199, L'Hospitalet de Llobregat, Barcelona 08907, Spain; Epigenetic Therapies Group, Experimental and Clinical Hematology Program (PHEC), Josep Carreras Leukaemia Research Institute, Ctra de Can Ruti - Camí de les Escoles, s/n, Badalona, Barcelona 08916, Spain
| | - Míriam Rosás-Umbert
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; Department of Clinical Medicine - Department of Infectious Disease, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, East Jutland, Aarhus 8200, Denmark
| | - Elena Gonçalves
- Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Sorbonne Université, Bd de l'Hôpital 91, Paris, Île de France 75013, France
| | - Clara Duran-Castells
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia, Universitat Autònoma de Barcelona, Av. de Can Domènech 737, Cerdanyola del Vallès, Barcelona 08193, Spain
| | - Francesc Català-Moll
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain
| | - Anuska Llano
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain
| | - Samandhy Cedeño
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain
| | - Maria C Puertas
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; CIBERINFEC, Madrid, Spain
| | - Martin Tolstrup
- Department of Clinical Medicine - Department of Infectious Disease, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, East Jutland, Aarhus 8200, Denmark
| | - Ole S Søgaard
- Department of Clinical Medicine - Department of Infectious Disease, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, East Jutland, Aarhus 8200, Denmark
| | - Bonaventura Clotet
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; CIBERINFEC, Madrid, Spain; Fundació Lluita contra la Sida, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Ctra del Canyet s/n, Badalona, Barcelona 08916, Spain; Centre for Health and Social Care Research (CESS), Faculty of Medicine, University of Vic - Central University of Catalonia (UVic - UCC), Carrer Miquel Martí i Pol, 1, Vic, Barcelona 08500, Spain
| | - Javier Martínez-Picado
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; CIBERINFEC, Madrid, Spain; Centre for Health and Social Care Research (CESS), Faculty of Medicine, University of Vic - Central University of Catalonia (UVic - UCC), Carrer Miquel Martí i Pol, 1, Vic, Barcelona 08500, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig de Lluís Companys, 23, Barcelona 08010, Spain
| | - Tomáš Hanke
- The Jenner Institute, University of Oxford, Old Road Campus Research Build, Roosevelt Dr, Headington, Oxford, Oxfordshire OX3 7DQ, UK; Joint Research Center for Human Retrovirus Infection, Kumamoto University, Honjo 2-2-1, Kumamoto City, Chuo-ku 860-0811, Japan
| | - Behazine Combadiere
- Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Sorbonne Université, Bd de l'Hôpital 91, Paris, Île de France 75013, France
| | - Roger Paredes
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; CIBERINFEC, Madrid, Spain; Fundació Lluita contra la Sida, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Ctra del Canyet s/n, Badalona, Barcelona 08916, Spain; Centre for Health and Social Care Research (CESS), Faculty of Medicine, University of Vic - Central University of Catalonia (UVic - UCC), Carrer Miquel Martí i Pol, 1, Vic, Barcelona 08500, Spain
| | - Dennis Hartigan-O'Connor
- Department of Medical Microbiology and Immunology, University of California, Veterinary Medicine 3A, Davis, CA 95616, USA; Division of Experimental Medicine, UC Davis School of Medicine, 4610 X Street, Sacramento, CA 95817, USA
| | - Manel Esteller
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig de Lluís Companys, 23, Barcelona 08010, Spain; Cancer and Leukemia Epigenetics and Biology Program (PEBCL), Josep Carreras Leukaemia Research Institute, Ctra de Can Ruti - Camí de les Escoles, s/n, Badalona, Barcelona 08916, Spain; Centro de Investigacion Biomedica en Red Cancer (CIBERONC), Av. Monforte de Lemos 3-5. Pabellón 11. Planta 0, Madrid 28029, Spain; Department of Physiological Sciences II, School of Medicine, University of Barcelona, Feixa Llarga, s/n, L'Hospitalet de Llobregat, Barcelona 08907, Spain
| | - Michael Meulbroek
- Projecte dels NOMS-Hispanosida, BCN Checkpoint, Carrer del Comte Borrell, 164-166, Barcelona 08015, Spain
| | - María Luz Calle
- Biosciences Department, Faculty of Sciences and Technology, University of Vic-Central University of Catalonia, Carrer de la Laura 13 - Torre dels Frares, Vic, Barcelona 08500, Spain
| | - Alex Sanchez-Pla
- Statistics Department, Biology Faculty, University of Barcelona, Diagonal 643, Barcelona 08028, Spain; Statistics and Bioinformatics Unit Vall d'Hebron Institut de Recerca (VHIR), Passeig de la Vall d'Hebron, 129, Barcelona 08035, Spain
| | - José Moltó
- CIBERINFEC, Madrid, Spain; Fundació Lluita contra la Sida, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Ctra del Canyet s/n, Badalona, Barcelona 08916, Spain
| | - Beatriz Mothe
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; CIBERINFEC, Madrid, Spain; Fundació Lluita contra la Sida, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Ctra del Canyet s/n, Badalona, Barcelona 08916, Spain; Centre for Health and Social Care Research (CESS), Faculty of Medicine, University of Vic - Central University of Catalonia (UVic - UCC), Carrer Miquel Martí i Pol, 1, Vic, Barcelona 08500, Spain
| | - Christian Brander
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; Centre for Health and Social Care Research (CESS), Faculty of Medicine, University of Vic - Central University of Catalonia (UVic - UCC), Carrer Miquel Martí i Pol, 1, Vic, Barcelona 08500, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig de Lluís Companys, 23, Barcelona 08010, Spain
| | - Marta Ruiz-Riol
- IrsiCaixa, AIDS Research Institute, Institute for Health Science Research Germans Trias i Pujol (IGTP), Hospital Germans Trias i Pujol, 2nd floor, Ctra del canyet s/n, Badalona, Barcelona 08916, Spain; CIBERINFEC, Madrid, Spain.
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Gonçalves E, Guillén Y, Lama JR, Sanchez J, Brander C, Paredes R, Combadière B. Host Transcriptome and Microbiota Signatures Prior to Immunization Profile Vaccine Humoral Responsiveness. Front Immunol 2021; 12:657162. [PMID: 34040607 PMCID: PMC8141841 DOI: 10.3389/fimmu.2021.657162] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/22/2021] [Accepted: 04/16/2021] [Indexed: 11/28/2022] Open
Abstract
The identification of new biomarkers is essential to predict responsiveness to vaccines. We investigated the whole-blood transcriptome and microbiome prior to immunization, in order to assess their involvement in induction of humoral responses two months later. We based our analyses on stool and skin microbiota, and blood transcriptome prior to immunization, in a randomized clinical study in which participants were vaccinated with the MVA-HIV clade B vaccine (MVA-B). We found that the levels of neutralizing antibody responses were correlated with abundance of Eubacterium in stool and Prevotella in skin. In addition, genus diversity and bacterial species abundance were also correlated with the expression of genes involved in B cell development prior to immunization and forecast strong responders to MVA-B. To our knowledge, this is the first study integrating host blood gene expression and microbiota that might open an avenue of research in this field and to optimize vaccination strategies and predict responsiveness to vaccines.
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Affiliation(s)
- Elena Gonçalves
- Sorbonne Université, INSERM, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Yolanda Guillén
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Javier R Lama
- Asociacion Civil Impacta Salud y Educacion, Lima, Peru
| | - Jorge Sanchez
- Centro de Investigaciones Tecnológicas, Biomedicas y Medioambientales, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Christian Brander
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain.,Faculty of Medicine, Universitat de Vic-Central de Catalunya (UVic-UCC), Vic, Spain.,Institució Catalana de Recerca I Estudis Avançats (ICREA), Barcelona, Spain
| | - Roger Paredes
- Infectious Diseases Department, Hospital Universitari Germans Trias, Barcelona, Spain
| | - Behazine Combadière
- Sorbonne Université, INSERM, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
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Sanchez J, Gonçalves E, Llano A, Gonzáles P, Fernández-Maldonado M, Vogt A, Soria A, Perez S, Cedeño S, Fernández MA, Nourikyan J, de Bernard S, Ganoza C, Pedruzzi E, Bonduelle O, Mothe B, Gòmez CE, Esteban M, Garcia F, Lama JR, Brander C, Combadiere B. Immune Profiles Identification by Vaccinomics After MVA Immunization in Randomized Clinical Study. Front Immunol 2020; 11:586124. [PMID: 33244316 PMCID: PMC7683801 DOI: 10.3389/fimmu.2020.586124] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 07/22/2020] [Accepted: 10/12/2020] [Indexed: 12/04/2022] Open
Abstract
Background Our previous work has demonstrated the benefits of transcutaneous immunization in targeting Langerhans cells and preferentially inducing CD8 T-cell responses. Methods In this randomized phase Ib clinical trial including 20 HIV uninfected volunteers, we compared the safety and immunogenicity of the MVA recombinant vaccine expressing HIV-B antigen (MVA-B) by transcutaneous and intramuscular routes. We hypothesized that the quality of innate and adaptive immunity differs according to the route of immunization and explored the quality of the vector vaccine-induced immune responses. We also investigated the early blood transcriptome and serum cytokine levels to identify innate events correlated with the strength and quality of adaptive immunity. Results We demonstrate that MVA-B vaccine is safe by both routes, but that the quality and intensity of both innate and adaptive immunity differ significantly. Transcutaneous vaccination promoted CD8 responses in the absence of antibodies and slightly affected gene expression, involving mainly genes associated with metabolic pathways. Intramuscular vaccination, on the other hand, drove robust changes in the expression of genes involved in IL-6 and interferon signalling pathways, mainly those associated with humoral responses, and also some levels of CD8 response. Conclusion Thus, vaccine delivery route perturbs early innate responses that shape the quality of adaptive immunity. Clinical Trial Registration http://ClinicalTrials.gov, identifier PER-073-13.
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Affiliation(s)
- Jorge Sanchez
- Centro de Investigaciones Tecnológicas, Biomedicas y Medioambientales, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Elena Gonçalves
- Sorbonne Université, Inserm, Centre d'Immunologie et des Maladies Infectieuses (CIMIParis), Paris, France
| | - Anuska Llano
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | | | | | - Annika Vogt
- Clinical Research Center for Hair and Skin Science, Department of Dermatology, Venerology and Allergy, Charité-Universitatsmedizin Berlin, corporate member of Freie Universitaet Berlin, Humboldt-Universitaet zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | | | - Susana Perez
- Centro de Investigaciones Tecnológicas, Biomedicas y Medioambientales, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Samandhy Cedeño
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Marco Antonio Fernández
- Flow Cytometry Facility, Germans Trias i Pujol Research Institute (IGTP), Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | | | | | | | - Eric Pedruzzi
- Sorbonne Université, Inserm, Centre d'Immunologie et des Maladies Infectieuses (CIMIParis), Paris, France
| | - Olivia Bonduelle
- Sorbonne Université, Inserm, Centre d'Immunologie et des Maladies Infectieuses (CIMIParis), Paris, France
| | - Beatriz Mothe
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain.,Fundació Lluita contra la Sida, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Carmen E Gòmez
- Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Mariano Esteban
- Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Felipe Garcia
- Infectious Diseases Department, Hospital Clínic, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Javier R Lama
- Asociacion Civil Impacta Salud y Educacion, Lima, Peru
| | - Christian Brander
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain.,Faculty of Medicine, Universitat de Vic-Central de Catalunya (UVic-UCC), Vic, Spain.,Institució Catalana de Recerca I Estudis Avançats (ICREA), Barcelona, Spain
| | - Behazine Combadiere
- Sorbonne Université, Inserm, Centre d'Immunologie et des Maladies Infectieuses (CIMIParis), Paris, France
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Abstract
La vaccination est l’un des progrès majeurs de la médecine moderne. Mais afin d’améliorer l’efficacité des vaccins existants et d’en élaborer de nouveaux, nous devons mieux connaître les mécanismes d’action à l’origine de l’immunité protectrice et les stratégies vaccinales permettant d’induire une défense durable. La voie cutanée est une stratégie de vaccination importante, en raison de la richesse qu’elle présente en cellules de l’immunité innée qui ont un rôle clé dans la qualité, l’intensité et la persistance des réponses adaptatives qu’elles induisent. L’intégration des données biologiques obtenues au cours d’un essai clinique de vaccination antigrippale nous donne un aperçu de l’impact de la voie d’immunisation et de la signature innée sur la qualité des réponses immunitaires.
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Gonnet J, Poncelet L, Meriaux C, Gonçalves E, Weiss L, Tchitchek N, Pedruzzi E, Soria A, Boccara D, Vogt A, Bonduelle O, Hamm G, Ait-Belkacem R, Stauber J, Fournier I, Wisztorski M, Combadiere B. Mechanisms of innate events during skin reaction following intradermal injection of seasonal influenza vaccine. J Proteomics 2020; 216:103670. [PMID: 31991189 DOI: 10.1016/j.jprot.2020.103670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/03/2019] [Accepted: 01/25/2020] [Indexed: 12/15/2022]
Abstract
The skin plays a crucial role in host defences against microbial attack and the innate cells must provide the immune system with sufficient information to organize these defences. This unique feature makes the skin a promising site for vaccine administration. Although cellular innate immune events during vaccination have been widely studied, initial events remain poorly understood. Our aim is to determine molecular biomarkers of skin innate reaction after intradermal (i.d.) immunization. Using an ex vivo human explant model from healthy donors, we investigated by NanoLC-MS/MS analysis and MALDI-MSI imaging, to detect innate molecular events (lipids, metabolites, proteins) few hours after i.d. administration of seasonal trivalent influenza vaccine (TIV). This multimodel approach allowed to identify early molecules differentially expressed in dermal and epidermal layers at 4 and 18 h after TIV immunization compared with control PBS. In the dermis, the most relevant network of proteins upregulated were related to cell-to-cell signalling and cell trafficking. The molecular signatures detected were associated with chemokines such as CXCL8, a chemoattractant of neutrophils. In the epidermis, the most relevant networks were associated with activation of antigen-presenting cells and related to CXCL10. Our study proposes a novel step-forward approach to identify biomarkers of skin innate reaction. SIGNIFICANCE: To our knowledge, there is no study analyzing innate molecular reaction to vaccines at the site of skin immunization. What is known on skin reaction is based on macroscopic (erythema, redness…), microscopic (epidermal and dermal tissues) and cellular events (inflammatory cell infiltrate). Therefore, we propose a multimodal approach to analyze molecular events at the site of vaccine injection on skin tissue. We identified early molecular networks involved biological functions such cell migration, cell-to-cell interaction and antigen presentation, validated by chemokine expression, in the epidermis and dermis, then could be used as early indicator of success in immunization.
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Affiliation(s)
- Jessica Gonnet
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France
| | - Lauranne Poncelet
- Univ. Lille, INSERM, CHU Lille, U1008 - Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France; ImaBiotech, 152 rue du Docteur Yersin, 59120 Loos, France
| | - Celine Meriaux
- Univ. Lille, Inserm, U1192 - Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, F-59000 Lille, France
| | - Elena Gonçalves
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France
| | - Lina Weiss
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France; Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin (2), 10117 Berlin, Germany
| | - Nicolas Tchitchek
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, Institut de Biologie François Jacob, 92265 Fontenay-aux-Roses, France
| | - Eric Pedruzzi
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France
| | - Angele Soria
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France; Service de Dermatologie et d'Allergologie, Hôpital Tenon, 4 rue de la Chine, Hôpitaux Universitaire Est Parisien (HUEP), Assistance Publique Hôpitaux de Paris (APHP), 75020 Paris, France
| | - David Boccara
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France; Service de chirurgie plastique reconstructrice, esthétique, centre des brûlés, Hôpital Saint-Louis, Assistance Publique Hôpitaux de Paris (APHP), 1 avenue Claude Vellefaux, 75010 Paris, France
| | - Annika Vogt
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France; Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin (2), 10117 Berlin, Germany
| | - Olivia Bonduelle
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France
| | - Gregory Hamm
- ImaBiotech, 152 rue du Docteur Yersin, 59120 Loos, France
| | | | | | - Isabelle Fournier
- Univ. Lille, Inserm, U1192 - Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, F-59000 Lille, France
| | - Maxence Wisztorski
- Univ. Lille, Inserm, U1192 - Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, F-59000 Lille, France
| | - Behazine Combadiere
- Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses - Paris (Cimi-Paris), INSERM U1135, Paris, France.
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Gomes K, Sousa B, Melo K, Macedo P, Resende Z, Gonçalves E, Resende J, Luz J, Urbano E. Intercurrent management and complications related to orthognathic surgeries: case report and literature review. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.773] [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: 11/16/2022]
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Gomes K, Sousa B, Melo K, Macedo P, Resende Z, Gonçalves E, Leite F, Resende J, Urbano E. Maxillofacial fibrous dysplasia: a case report and literature revew. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.283] [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: 11/15/2022]
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Gomes K, Sousa B, Melo K, Macedo P, Resende Z, Gonçalves E, Resende J, Urbano E. Ameloblastoma: case study associated with literature review. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
Conservation of intra-varietal genetic variability is a crucial strategy to preserve traditional viticulture and to face future challenges. Conservation can be performed through two processes: (1) conservation without other immediate objectives; (2) conservation which simultaneously ensures the evaluation of important quantitative traits (such as yield, must quality traits, tolerance to abiotic stresses). The second strategy permits the quantification of intra-varietal genetic variability for important quantitative traits and the selection of a superior group of genotypes (polyclonal selection). Based on the results obtained from the conservation of ancient Portuguese varieties, the abovementioned methods for conservation of intra-varietal diversity are compared, and the advantages and disadvantages of each one are discussed.
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Abstract
The methodology for selection of an ancient grapevine variety conducted by PORVID (Portuguese Association for Grapevine Diversity) and the Portuguese Network for Grapevine Selection, focuses on quantitative genetic tools resulting in an integrated strategy that comprises two types of selected material – clonal and polyclonal – both carrying high genetic and economic gains for relevant agronomic and oenological traits. This work focused on the clonal selection methodology, particularly on the model for communication with users of selected materials (grape growers and winemakers). The approach is innovative, since detailed information of the whole experimental process leading to certified clones is provided, including predicted genetic gains for several traits and information about the clone's environmental stability (G × E interaction). This last analysis, combined with the utilisation of several certified clones (approximately 7), contributes to a better adaptation to environmental changes.
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Pragosa H, Marçal M, Gonçalves E, Martins F, Lopo-Tuna M. Multi-drug-resistant Enterobacteriaceae in a Portuguese neonatal intensive care unit. J Hosp Infect 2017; 96:130-131. [PMID: 28433397 DOI: 10.1016/j.jhin.2017.03.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 03/13/2017] [Indexed: 11/25/2022]
Affiliation(s)
- H Pragosa
- Hospital de Sao Francisco Xavier, Lisboa, Portugal.
| | - M Marçal
- Unidade de Neonatologia, Serviço de Pediatria, Hospital de São Francisco Xavier, Lisboa, Portugal
| | - E Gonçalves
- Serviço de Patologia Clínica, Laboratório de Microbiologia, Centro Hospitalar Lisboa Ocidental, Lisboa, Portugal
| | - F Martins
- Coordenadora do Grupo de Coordenação local do Programa de Prevenção e Controlo da Infecção e Resistência aos Antimicrobianos, Centro Hospitalar de Lisboa Ocidental, Portugal
| | - M Lopo-Tuna
- Coordenadora da Unidade de Neonatologia, Serviço de Pediatria, Hospital de São Francisco Xavier, Lisboa, Portugal
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Salgado RM, Marques-Silva MH, Gonçalves E, Mathias AC, Aguiar JG, Wolff P. Effect of oral administration of Tribulus terrestris extract on semen quality and body fat index of infertile men. Andrologia 2016; 49. [PMID: 27401787 DOI: 10.1111/and.12655] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2016] [Indexed: 11/28/2022] Open
Abstract
Male fertility can be evaluated through complete semen analysis. Plants belonging to the Tribulus genus are known for their role in enhancing sex hormone levels and semen quality. The aim of this study was to evaluate the effects of T. terrestris on semen quality and physiological parameters. Sixty-five men with abnormal semen evaluation were included in this study, in which they were prescribed with oral administration of Androsten® (250 mg of Tribulus terrestris dried extract per capsule). Body fat percentage, lean muscle mass gain, fluctuation in steroid hormone levels and all semen parameters were analysed during the period of treatment. The results demonstrated that decrease in the percentage of body fat and increase in lean mass were significant, as well as increase in dihydrotestosterone levels. Complete semen analysis evaluated at the end of treatment showed significant enhancement in sperm concentration, motility and liquefaction time. Protodioscin, the main phytochemical agent of the Tribulus genus, acts on sertoli cells, germ cell proliferation and growth of seminiferous tubules. This component is known to convert testosterone into dihydrotestosterone, which plays important roles in male attributes. Our results indicate the therapeutic use of Tribulus terrestris by men presenting altered semen parameters, and/or undergoing infertility treatment.
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Affiliation(s)
- R M Salgado
- Genics - Reproductive Medicine and Genomics, São Paulo, Brazil
| | | | - E Gonçalves
- Genics - Reproductive Medicine and Genomics, São Paulo, Brazil
| | - A C Mathias
- Genics - Reproductive Medicine and Genomics, São Paulo, Brazil
| | - J G Aguiar
- Genics - Reproductive Medicine and Genomics, São Paulo, Brazil
| | - P Wolff
- Genics - Reproductive Medicine and Genomics, São Paulo, Brazil
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Costa Pereira K, Elias J, Moraes D, Guimarães A, Garcia J, Cardoso E, Leopoldo V, Zombrilli A, Gonçalves E, Costa T, Stracieri A, Simões B, Oliveira M. OP0052 Autologous Hematopoietic Stem Cell Transplantation Improves Functional Evaluation of Systemic Sclerosis Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4197] [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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15
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Mendes PHC, Martelli DRB, de Melo Costa S, Gonçalves E, Macedo CP, Silveira MF, Martelli Júnior H. Comparison of digit ratio (2D:4D) between Brazilian men with and without prostate cancer. Prostate Cancer Prostatic Dis 2016; 19:107-10. [PMID: 26754259 DOI: 10.1038/pcan.2015.62] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 10/21/2015] [Accepted: 11/18/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Digit ratio (2D:4D) has been suggested as a proxy biomarker for prenatal androgen activity and has been linked to prostate cancer, as the genes that regulate the formation and differentiation of the fingers are also related to the carcinogenesis of prostate cancer. To investigate the possible correlation between right hand, left hand and right hand minus left hand (DR-L) 2D:4D and prostate cancer of Brazilian subjects by comparing 2D:4D ratios of individuals diagnosed with prostate cancer and individuals without the disease. Also, to inquire the relationship between 2D:4D and severity of prostate cancer through Gleason scores. METHODS Digital measurements of the lengths of the index and ring fingers of both hands of patients diagnosed with prostate cancer (PCA group, n=100) and healthy control individuals (n=100) were obtained using a digital vernier caliper. Means of the 2D:4D ratios were compared. Data were analyzed by the Student's t-test for unpaired samples, Mann-Whitney test and Spearman's correlation with a significance level of 5%. RESULTS The PCA group presented significantly lower right and left 2D:4D (P=0.001 and P=0.002, respectively) in comparison to healthy controls, but DR-L were not significantly different between groups (P=0.589). In addition, digit ratios were not correlated to Gleason score for either hand or in DR-L. CONCLUSIONS 2D:4D seems to be a marker for screening patients for prostate cancer in an admixed population, as males with prostate cancer present lower 2D:4D than healthy subjects. On the other hand, 2D:4D does not appear to be associated with the severity of prostate cancer.
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Affiliation(s)
- P H C Mendes
- Health Science Program, State University of Montes Claros, Montes Claros, Brazil
| | - D R B Martelli
- Health Science Program, State University of Montes Claros, Montes Claros, Brazil
| | - S de Melo Costa
- Health Science Program, State University of Montes Claros, Montes Claros, Brazil
| | - E Gonçalves
- Health Science Program, State University of Montes Claros, Montes Claros, Brazil
| | - C P Macedo
- Medicine School, State University of Montes Claros, Montes Claros, Brazil
| | - M F Silveira
- Department of Biostatistics, Health Science Program, State University of Montes Claros, Montes Claros, Brazil
| | - H Martelli Júnior
- Health Science Program, State University of Montes Claros, Montes Claros, Brazil
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Ryll A, Bucher J, Bonin A, Bongard S, Gonçalves E, Saez-Rodriguez J, Niklas J, Klamt S. A model integration approach linking signalling and gene-regulatory logic with kinetic metabolic models. Biosystems 2014; 124:26-38. [PMID: 25063553 DOI: 10.1016/j.biosystems.2014.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/11/2014] [Accepted: 07/18/2014] [Indexed: 12/16/2022]
Abstract
Systems biology has to increasingly cope with large- and multi-scale biological systems. Many successful in silico representations and simulations of various cellular modules proved mathematical modelling to be an important tool in gaining a solid understanding of biological phenomena. However, models spanning different functional layers (e.g. metabolism, signalling and gene regulation) are still scarce. Consequently, model integration methods capable of fusing different types of biological networks and various model formalisms become a key methodology to increase the scope of cellular processes covered by mathematical models. Here we propose a new integration approach to couple logical models of signalling or/and gene-regulatory networks with kinetic models of metabolic processes. The procedure ends up with an integrated dynamic model of both layers relying on differential equations. The feasibility of the approach is shown in an illustrative case study integrating a kinetic model of central metabolic pathways in hepatocytes with a Boolean logical network depicting the hormonally induced signal transduction and gene regulation events involved. In silico simulations demonstrate the integrated model to qualitatively describe the physiological switch-like behaviour of hepatocytes in response to nutritionally regulated changes in extracellular glucagon and insulin levels. A simulated failure mode scenario addressing insulin resistance furthermore illustrates the pharmacological potential of a model covering interactions between signalling, gene regulation and metabolism.
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Affiliation(s)
- A Ryll
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstraße 1, D-39106 Magdeburg, Germany.
| | - J Bucher
- Insilico Biotechnology AG, Meitnerstraße 8, D-70563 Stuttgart, Germany
| | - A Bonin
- Insilico Biotechnology AG, Meitnerstraße 8, D-70563 Stuttgart, Germany
| | - S Bongard
- Insilico Biotechnology AG, Meitnerstraße 8, D-70563 Stuttgart, Germany
| | - E Gonçalves
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton CB10 1SD, Cambridge, United Kingdom
| | - J Saez-Rodriguez
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton CB10 1SD, Cambridge, United Kingdom
| | - J Niklas
- Insilico Biotechnology AG, Meitnerstraße 8, D-70563 Stuttgart, Germany
| | - S Klamt
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstraße 1, D-39106 Magdeburg, Germany.
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Ogouyèmi-Hounto A, Kinde-Gazard D, Keke C, Gonçalves E, Alapini N, Adjovi F, Adisso L, Bossou C, Denon YV, Massougbodji A. Évaluation d’un test de diagnostic rapide et d’un microscope à fluorescence portable pour le diagnostic du paludisme à Cotonou (Bénin). ACTA ACUST UNITED AC 2012; 106:27-31. [DOI: 10.1007/s13149-012-0264-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 08/28/2012] [Indexed: 10/27/2022]
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Silva Pinto C, Fidalgo T, Salvado R, Marques D, Gonçalves E, Martinho P, Markoff A, Martins N, Letícia Ribeiro M. Molecular diagnosis of haemophilia A at Centro Hospitalar de Coimbra in Portugal: study of 103 families--15 new mutations. Haemophilia 2011; 18:129-38. [PMID: 21645180 DOI: 10.1111/j.1365-2516.2011.02570.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Haemophilia A (HA), the most commonly inherited bleeding disorder, has well known phenotype heterogeneity, influenced by the type of mutation, modulating factors and development of inhibitors. Nowadays, new technologies in association with bioinformatics tools allow a better genotype/phenotype correlation. With the main objective of identifying familial carrier women and to offer prenatal diagnosis, 141 HA patients belonging to 103 families, followed or referred to the Haemophilia Centre of CHC, E.P.E., were studied. Molecular diagnosis strategy was based on HA severity: IVS22 and IVS1 inversions, direct sequencing and MLPA technique. New missense and splicing mutations were further analyzed using molecular modelling. Genotype/phenotype correlation was assessed taking into account the known modulating factors. During this study, mutations were detected in 102/103 families, carrier status was determined in 83 women and 14 prenatal diagnoses were performed. In a total of 46 different mutations identified, 15 have not been reported previously by the HAMSTeRS and HGMD. Genotype/phenotype correlation revealed two cases with a clinical picture less severe than expected by the type of mutation identified. Six patients developed inhibitors: five severe (IVS22, IVS1, large deletion) and one mild (p. Gln2265Lys). The adopted strategy allowed the identification of 99% of the molecular alterations underlying the HA phenotype (98% detection rate for severe and 100% for moderate and mild). Evaluation of genotype-phenotype correlation was complemented with structural protein modelling of newly identified missense mutations, contributing to better understanding of the disease-causing mechanisms and to deepening knowledge on protein structure-function.
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Affiliation(s)
- C Silva Pinto
- Centro Hospitalar de Coimbra, EPE, Hematologia, Coimbra, Portugal
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Malone T, Davidson M, DiGiacomo P, Gonçalves E, Knap T, Muelbert J, Parslow J, Sweijd N, Yanagai T, Yap H. Climate Change, Sustainable Development and Coastal Ocean Information Needs. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proenv.2010.09.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gonçalves E, St Aubyn A, Martins A. Experimental designs for evaluation of genetic variability and selection of ancient grapevine varieties: a simulation study. Heredity (Edinb) 2009; 104:552-62. [PMID: 19904297 DOI: 10.1038/hdy.2009.153] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Classical methodologies for grapevine selection used in the vine-growing world are generally based on comparisons among a small number of clones. This does not take advantage of the entire genetic variability within ancient varieties, and therefore limits selection challenges. Using the general principles of plant breeding and of quantitative genetics, we propose new breeding strategies, focussed on conservation and quantification of genetic variability by performing a cycle of mass genotypic selection prior to clonal selection. To exploit a sufficiently large amount of genetic variability, initial selection trials must be generally very large. The use of experimental designs adequate for those field trials has been intensively recommended for numerous species. However, their use in initial trials of grapevines has not been studied. With the aim of identifying the most suitable experimental designs for quantification of genetic variability and selection of ancient varieties, a study was carried out to assess through simulation the comparative efficiency of various experimental designs (randomized complete block design, alpha design and row-column (RC) design). The results indicated a greater efficiency for alpha and RC designs, enabling more precise estimates of genotypic variance, greater precision in the prediction of genetic gain and consequently greater efficiency in genotypic mass selection.
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Affiliation(s)
- E Gonçalves
- Centro de Botânica Aplicada à Agricultura (CBAA), Instituto Superior de Agronomia, Technical University of Lisbon, Tapada da Ajuda, Lisboa, Portugal.
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Ganhão I, Gonçalves E, Paixão A, Trigo M. Tobacco Smoking and Motivation to Quit in Psychiatric Patients. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)70653-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Introduction:Smoking is a major health risk in the population in general with significantly increased morbility/mortality with severe consequences on the quality of life and tremendous economic burden on society. It is well known that psychiatric patients have an even higher prevalence of smoking, of heavy smokers and of other risk factors that contribute to the same illnesses.Non-smoking campaigns/smoking restrictions have flourished and it appears that more people are quitting or seriously contemplating the idea. When once, many non-smokers tolerated smokers, today the stigma associated with smoking is undeniable. Psychiatric patients, already greatly stigmatized, risk even becoming more so. Furthermore, smoking cessation programs and interventions frequently are not available, exclude many psychiatric patients and/or are ill-adapted to the special needs in this patient population.Aim:To establish the prevalence of smoking, quantity of tobacco smoked, other factors of dependence by psychiatric diagnosis in a portuguese psychiatric hospital.Establish the motivation of these patients to seek help by professionals and motivation to quit.Methods:Application of questionnaires including Fagerstrom's Modified Questionnaire to patients under care by one team of a Psychaitric hospital in Lisbon, Portugal (CHPL - Sector A).Discussion and conclusions:The study is under way therefore, there are no valid conclusions yet.Certainly it will be possible to confirm high levels of smoking tobacco in this patient population. Hopefully, we may also conclude that there is the desire to change smoking habits making cessation programs a needed and welcomed intervention in psychiatric settings.
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Gonçalves E, Furtado F, Estrada J, Vale MC, Pinto M, Santos M, Moura G, Vasconcelos C. [Necrotizing fasciitis after varicella]. ACTA MEDICA PORT 2001; 14:367-70. [PMID: 11552336] [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: 02/21/2023]
Abstract
Necrotizing fasciitis is a rare and severe infection characterised by extremely rapid progressive involvement of the superficial fascias and deep dermal layers of the skin, with resultant vasculitis and necrosis. The authors present three clinical cases of necrotizing fasciitis; all three patients previously had varicella rash, rapid progressive spreading erythema with severe pain and toxic shock syndrome. Two patients had positive cultures of b-haemolytic streptococcus. Early stage differential diagnosis with celulitis, aggressive antibiotic treatment and pediatric intensive care support are essential. However, the main therapy is early extensive surgical approach involving all indurate areas, down to and including the muscle fascia.
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Affiliation(s)
- E Gonçalves
- Unidade de Cuidados Intensivos Pediátricos, Hospital de Dona Estefânia, Lisboa
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Magina S, Lisboa C, Gonçalves E, Conceição F, Leal V, Mesquita-Guimarães J. A case of toxic epidermal necrolysis treated with intravenous immunoglobin. Br J Dermatol 2000; 142:191-2. [PMID: 10819555 DOI: 10.1046/j.1365-2133.2000.03276.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Faria F, Alves P, Gonçalves E, Martins A, Viterbo L, Viseu F, Aguiar A. Retrospective study of patients with haematological malignancies admitted in an intensive care unit. Crit Care 1999. [PMCID: PMC3301939 DOI: 10.1186/cc611] [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: 11/30/2022] Open
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Gonçalves E, Almeida LM, Dinis TC. Antioxidant activity of 5-aminosalicylic acid against peroxidation of phosphatidylcholine liposomes in the presence of alpha-tocopherol: a synergistic interaction? Free Radic Res 1998; 29:53-66. [PMID: 9733022 DOI: 10.1080/10715769800300071] [Citation(s) in RCA: 38] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Oxidative damage has been implicated in the pathogenesis of inflammatory bowel diseases. 5-Aminosalicylic acid (5-ASA), the anti-inflammatory drug commonly used in the treatment of this condition, has been shown to possess antioxidant properties considered to be of particular importance in the pathologic context of these diseases. However, its action mechanisms are far from being completely elucidated, especially regarding its antioxidant properties in the presence of endogenous antioxidants such as alpha-tocopherol (alpha-T), the major defence system of biomembranes against lipid peroxidation. In this study we investigated the scavenging activity of 5-ASA toward peroxyl radicals generated at different sites of soybean PC liposomes, used as model membranes, either alone or in combination with alpha-T. 5-ASA, separately, shows strong scavenging activity toward peroxyl radicals generated in the aqueous phase by thermal decomposition of 2,2'-azobis(2-amidinopropane hydrochloride) (AAPH), inducing a clear concentration-dependent inhibition period, either of oxygen consumption or of conjugated diene hydroperoxides production. HPLC analysis indicates that 5-ASA is consumed, at a constant rate, throughout the reaction, and when the inhibition period is over, the oxidation rate is resumed. On the other hand, apart from a slight decrease in the rate of oxidation, 5-ASA is unable to suppress efficiently lipid peroxidation, when the reaction starts inside the lipid membranes, by thermal decomposition of 2,2'-azobis(2,4-dimethylvaleronitrile) (AMVN). When 5-ASA is combined with alpha-T, and the oxidation starts in the aqueous phase, an additive inhibitory effect occurs between both compounds. 5-ASA protects efficiently alpha-T against initial attack from AAPH-peroxyl radicals, delaying its consumption. On the other hand, if the reaction starts inside the lipid bilayer, 5-ASA prolongs significantly the inhibitory period produced by alpha-T on the initial rate of oxidation, as measured by oxygen consumption and conjugated diene hydroperoxides. This inhibitory effect points to a synergistic interaction between 5-ASA and alpha-T, since 5-ASA, by itself, is unable to suppress the oxidation reaction. Therefore, 5-ASA reveals an important cooperative effect with alpha-T, either affording an efficient protection to this antioxidant compound, when free radicals are generated in the aqueous site, or potentiating its activity when oxidation is initiated inside the lipid bilayer. Taking into account that the ascorbic acid content decreases significantly in the inflamed mucosa of patients with inflammatory bowel diseases, our data are, certainly, a very important contribution to the knowledge of the anti-inflammatory action of 5-ASA.
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Affiliation(s)
- E Gonçalves
- Laboratório de Bioquímica, Faculdade de Farmácia, Universidade de Coimbra, Portugal
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Lhommé C, Delaloge S, Gonçalves E, Taléa V, Pautier P. [Are there any arguments against hormone replacement therapy after treatment of ovarian adenocarcinoma?]. Bull Cancer 1997; 84:981-6. [PMID: 9435801] [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: 02/05/2023]
Abstract
The hormonal status of 95% of the women treated for epithelial ovarian carcinoma is menopausal, either naturally or after treatment. This raises the important question of the hormonal replacement therapy (HRT) among these patients. Several retrospective studies have explored the potential positive or negative influence of HRT on the genesis of ovarian adenocarcinoma. Although somehow contradictory, these studies taken all together fail to show any favouring nor protective role of HRT. In vitro, estrogens have been shown to induce the proliferation of ovarian cancer cell lines. On the opposite, progesterone and antiestrogens have antiproliferative effects. Both types of effects are mediated by intracellular steroid hormone receptors (ER, PgR). Although high dose progesterone derivatives and antiestrogens have been shown to obtain therapeutic responses in patients carrying advanced ovarian carcinoma, response rates were usually less than 20%, and no clinico-biological correlation (with ER, PgR status) could be demonstrated. There is therefore no evidence for a clinical significance of the presence of hormonal receptors in these tumors. A single retrospective study explored the possible influence of HRT on the prognosis of patients treated for ovarian carcinoma, and did not demonstrate any deleterious effect. This review of recent epidemiological, biological and clinical data fails to find any argument against the prescription of HRT in patients treated for ovarian adenocarcinoma, in the absence of other contra-indications.
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Affiliation(s)
- C Lhommé
- Institut Gustave-Roussy, Villejuif
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Braga J, Marques R, Branco A, Gonçalves J, Lobato L, Pimentel JP, Flores MM, Gonçalves E, Jorge CS. Maternal and perinatal implications of the use of human recombinant erythropoietin. Acta Obstet Gynecol Scand 1996; 75:449-3. [PMID: 8677769 DOI: 10.3109/00016349609033352] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The use of human recombinant erythropoietin (rHuEPO) in pregnant patients has been limited by the fear of eventual maternal and fetal repercussions (either direct or indirect). METHODS The authors present their experience with the use of rHuEPO during pregnancy, with two pregnant women with kidney transplants and in three others with chronic renal insufficiency (one with diabetic nephropathy, another dialysis dependent), all with hematocrit below 30% and adequate iron reserves. RESULTS Three of the patients had needed blood transfusions before beginning therapy, and another needed transfusion after significant metrorrhagia. The length of the treatment varied between 2 and 23 weeks and the hematocrit at delivery varied between 26% and 36%. Secondary effects (appearance or worsening of hypertension and seizures) were nil. There was one fetal death at 23 weeks of pregnancy (following an abruptio placenta), two neonates weighing between the 5th and the 10th percentiles, and three needing phototherapy (1 to 2 days). One year after birth, all showed a normal ponderal and neurologic development. CONCLUSIONS Among the cases presented, no maternal and perinatal complications attributable to rHuEPO were registered. It is important that institutions report their experiences with the use of rHuEPO, given its restrictive indications and the limited experience of each institution.
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Affiliation(s)
- J Braga
- Department of Obstetrics and Materno-fetal Medicine, Hospital Geral de Santo António, Oporto, Portugal
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Gonçalves E, de Costa L, Abigerges D, Armand JP. A new enkephalinase inhibitor as an alternative to loperamide in the prevention of diarrhea induced by CPT-11. J Clin Oncol 1995; 13:2144-6. [PMID: 7636561 DOI: 10.1200/jco.1995.13.8.2144] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Abstract
A one-step bromoacetylation of L-thyroxine (T4) produces N-bromoacetyl-L-thyroxine (BrAcT4) in good yield. The reaction product is best purified by high-speed countercurrent chromatography. While HPLC is satisfactory only for purification of microgram and submicrogram quantities, amounts ranging from about 1 ng to 1 g of BrAcT4 can be processed by high-speed countercurrent chromatography (HSCCC), a method which we have previously used for the purification of N-bromoacetyl-3,3',5-triiodo-L-thyronine (BrAcT3). Operating conditions for the one-step synthesis of BrAcT4 and BrAcT3 differ due to differences in solubility and reactivity of the two hormones. BrAcT4 purified by HSCCC and shown to be pure by analytical HPLC has been characterized by alpha max and epsilon max in the near and far uv in several solvents, mass spectrum, 1H NMR spectrum, TLC in three solvent systems, retention time in reverse-phase HPLC (C18) in relation to the retention times of two internal standards, 3,3',5-triiodo-L-thyronine and T4, and melting point. Corresponding data for BrAcT3, not previously reported, have also been determined. The described procedure can provide not only substantial amounts of highly purified BrAcT4 for competition studies, but also 125I-labeled BrAcT4 of high specific activity for affinity labeling. Since solutions of BrAcT4 and of BrAcT3 undergo partial decomposition on evaporation to dryness, suitable procedures for the preparation of these hormones in solid form and for storage in solutions have been devised.
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Affiliation(s)
- H J Cahnmann
- Genetics and Biochemistry Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
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Abstract
N-Bromoacetyl-3,3',5-triiodo-L-thyronine and carrier-free [3'-125I]-N-bromoacetyl-3,3',5-triiodo-L-thyronine, to be used for affinity labeling of thyroid hormone receptors, were synthesized using a one-step procedure: a solution of the thyroid hormone 3,3',5-triiodo-L-thyronine and bromoacetyl bromide in ethyl acetate was refluxed for an optimal period of time which depends on the amount of hormone processed. The bromoacetylated hormone thus obtained was then fractionated by high-speed counter-current chromatography which yielded N-bromoacetyl-3,3',5-triiodo-L-thyronine that was pure by the criteria of high-performance liquid chromatography and thin-layer chromatography with different solvent systems. The pure product was well separated from all contaminants including one which in high-performance liquid chromatography was not easily separated from N-bromoacetyl-3,3',5-triiodo-L-thyronine. The latter was characterized by 1H nuclear magnetic resonance, plasma desorption mass spectrometry, thin-layer chromatography, high-performance liquid chromatography, UV spectrophotometry, and melting point. Amounts of 3,3',5-triiodo-L-thyronine ranging from picograms, including carrier-free 125I-labeled triiodothyronine, to 200 to 300 mg can be processed with the equipment used in the present investigation.
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Affiliation(s)
- H J Cahnmann
- National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
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Gonçalves E, Lakshmanan M, Cahnmann HJ, Robbins J. High-affinity binding of thyroid hormones to neuroblastoma plasma membranes. Biochim Biophys Acta 1990; 1055:151-6. [PMID: 2242383 DOI: 10.1016/0167-4889(90)90115-t] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The binding of thyroid hormones to isolated plasma membranes was studied in NB41A3 neuroblasts. Saturable binding of L-T3, D-T3 and L-T4 was observed. Binding was time-dependent, with equilibrium reached in less than 60 min and maximal binding occurring between pH 7.4 and 7. Saturation experiments demonstrated two classes of sites for L-T3: a high-affinity site with Ka 8.4 X 10(9) M-1 and a low-affinity site with Ka 7.3 X 10(6) M-1.L-T3 and D-T3 inhibited each other's binding, L-T3 being several-times more potent. Affinity labeling of isolated membranes with bromoacetylated thyroid hormones disclosed stereospecific binding to SDS-PAGE bands with approximate molecular masses of 27 kDa (preferentially labeled by BrAc-L-T3), 32 kDa (preferentially labeled by BrAc-D-T3), and 48 and 87 kDa (preferentially labeled by BrAc-L-T4). Binding of BrAc-L-T3 to the 27 kDa band accounted for 3.4% of total binding, was selectively inhibited by excess L-T3, and may be involved in intracellular transport of L-T3.
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Affiliation(s)
- E Gonçalves
- Clinical Endocrinology Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
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Waitzberg D, Gonçalves E, da Silva Duarte A, Faintuch J, Rocha C, Bevilacqua L. The influence of nutritional status on skin anergy in experimental cancer. Clin Nutr 1989; 8:247-52. [PMID: 16837296 DOI: 10.1016/0261-5614(89)90034-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/1988] [Accepted: 06/07/1988] [Indexed: 10/26/2022]
Abstract
Malignant tumours as well as severe malnutrition can interfere with carcass weight, serum albumin and delayed hypersensitivity tests. In order to identify the separate effects of these two phenomena, Wistar rats were submitted to various nutritional manipulations prior to Walker-256 carcinosarcoma inoculation (TU). Six groups of well-nourished rats with positive response to the Keyhole Limpet Haemocyanin (KLH) test were studied. Three TU-bearing groups were established, [1] protein-deprived before and after TU (group DDT), [2] protein deprived before TU and later brought back to normal chow (group DNT), and [3] those receiving a complete diet throughout the experiment (group NNT). Identical control groups without TU, sham-injected, were called DDC, DNC and NNC. Tumour size and body weight were measured daily. KLH tests were done sequentially and serum albumin was determined at sacrifice. Results indicated that cancer produced marked changes in immune response. Malnutrition was responsible for anergy and weight loss, and further aberrations tended to occur when both conditions were present. Feeding was able to restore body weight and KLH response in tumour-bearing as well as in control rats, but subsequent deterioration occurred in cancer bearing rats after the first week of tumour development. It is concluded that cancer potentiates the effects of malnutrition, on body weight and immune response, but temporary recovery could be demonstrated after adequate refeeding.
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Affiliation(s)
- D Waitzberg
- Surgical Technique, Department of Surgery, University of São Paulo Medical School, Av. Dr. Arnaldo 455, cep 01246 São Paulo, S. P., Brazil
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Abstract
The mechanism of T3 entry into cells was studied in undifferentiated NB41A3 neuroblasts and after differentiation with 0.5 mM sodium butyrate. In undifferentiated neuroblasts, cell uptake of labeled L-T3 at 2 h was reduced to 43% of the control value by excess L-T3, whereas only 5.9% of D-T3 uptake was saturable. After incubation of intact cells with labeled hormone, the nuclei contained 3.8% of the total cellular L-T3 and 4.3% of D-T3. Thus, L-T3 nuclear uptake was 3 times higher than D-T3. Kinetic analysis of the initial rate of uptake of L-T3 by the cells gave a Km of 1.25 nM and a maximum velocity of 2.38 fmol/min.10(6) cells. The initial rate of D-T3 uptake was not saturable. Inhibitors of ATP production (antimycin and oligomycin) as well as monodansylcadaverine virtually abolished saturable cell uptake and decreased nuclear uptake more than total cell uptake, suggesting that the saturable component of uptake into the cells is the major source of nuclear L-T3. After differentiation by butyrate, both cell uptake and nuclear uptake of L-T3 increased. The apparent affinity (Ka) of the nuclear T3 receptors was determined in intact cells and compared with the Ka measured with isolated nuclei. In undifferentiated cells, the apparent Ka was 3-fold higher than the true Ka, presumably due to a step-up in the free T3 concentration in the cytosol compared to that in the incubation medium. After butyrate exposure, the apparent nuclear Ka was decreased to less than 1.5 times the control value, but Ka in isolated nuclei was unchanged. The number of nuclear receptors, however, was increased by butyrate in both intact cell and isolated nuclei experiments. These results indicate that butyrate exerts separate effects on the number of nuclear receptors and saturable T3 transport in mouse neuroblasts.
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Affiliation(s)
- E Gonçalves
- Clinical Endocrinology Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland 20892
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de Almeida Júnior N, Gusmão RH, Pedercini R, Gonçalves E. [Gastrointestinal hemorrhage caused by erosive gastritis requiring total gastrectomy]. Rev Bras Med 1966; 23:82-5. [PMID: 5295821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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