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Lacotte E, Boujonnier L, Martinez-Vinson C, Viala J, Ley D, Coopman S, Lerisson H, Dabadie A, Dumant-Forrest C, Pigneur B, Ruemmele F, Enaud R, Comte A, Rebeuh J, Bertrand V, Caron N, Breton A, Duclaux-Loras R, Vasies I, Dupont-Lucas C. Risk factors for surgery in stricturing small bowel Crohn's disease: A retrospective cohort study from the GETAID pédiatrique. J Pediatr Gastroenterol Nutr 2024. [PMID: 38651614 DOI: 10.1002/jpn3.12224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 02/22/2024] [Accepted: 03/22/2024] [Indexed: 04/25/2024]
Abstract
OBJECTIVES Previous studies have shown rates of surgical resection of up to 41% in stricturing pediatric Crohn's disease. In this retrospective multicenter study, our aims were to identify clinical risk factors and magnetic resonance enterography (MRE) features of small bowel strictures associated with surgery. METHODS Pediatric patients with symptomatic stricturing small bowel CD (defined as obstructive symptoms or proximal dilatation on MRE) confirmed by MRE between 2010 and 2020 were recruited from 12 French tertiary hospitals. Patient characteristics were compared by surgical outcome multivariable Cox regression. RESULTS Fifty-six patients (61% boys) aged 12.2 ± 2.7 years at diagnosis of CD were included. Median duration of CD before diagnosis of stricture was 11.7 months (interquartile range [IQR]: 25-75: 1.2-29.9). Nineteen (34%) patients had stricturing phenotype (B2) at baseline. Treatments received before stricture diagnosis included MODULEN-IBD (n = 31), corticosteroids (n = 35), antibiotics (n = 10), anti-TNF (n = 27), immunosuppressants (n = 28). Thirty-six patients (64%) required surgery, within 4.8 months (IQR: 25-75: 1.8-17.3) after stricture diagnosis. Parameters associated with surgical resection were antibiotic exposure before stricture diagnosis (adjusted odds ratio [aOR]: 15.62 [3.35-72.73], p = 0.0005), Crohn's disease obstructive symptoms score (CDOS) > 4 (aOR: 3.04 [1.15-8.03], p = 0.02) and dilation proximal to stricture >28 mm (aOR: 3.62 [1.17-11.20], p = 0.03). CONCLUSION In this study, antibiotic treatment before stricture diagnosis, intensity of obstructive symptoms, and diameter of dilation proximal to small bowel stricture on MRE were associated with risk for surgical resection.
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Affiliation(s)
- Edouard Lacotte
- Department of Pediatrics, Caen University Hospital, Caen, France
| | - Louis Boujonnier
- Department of Pediatric Radiology, Caen University Hospital, Caen, France
| | | | - Jérôme Viala
- Pediatric Gastroenterology, Robert Debré University Hospital, Paris, France
| | - Delphine Ley
- Pediatric Gastroenterology, Lille University Hospital, Lille, France
| | - Stéphanie Coopman
- Pediatric Gastroenterology, Lille University Hospital, Lille, France
| | - Héloïse Lerisson
- Department of Pediatric Radiology, Lille University Hospital, Lille, France
| | - Alain Dabadie
- Pediatric Gastroenterology, Rennes University Hospital, Rennes, France
| | | | - Bénédicte Pigneur
- Pediatric Gastroenterology, Necker University Hospital, Paris, France
| | - Frank Ruemmele
- Pediatric Gastroenterology, Necker University Hospital, Paris, France
| | - Raphael Enaud
- Pediatric Gastroenterology, Bordeaux University Hospital, Bordeaux, France
| | - Aurélie Comte
- Department of Pediatrics, Besançon University Hospital, Besançon, France
| | - Julie Rebeuh
- Department of Pediatrics, Strasbourg University Hospital, Strasbourg, France
| | | | - Nicolas Caron
- Department of Pediatrics, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Anne Breton
- Department of Pediatric Gastroenterology, Toulouse University Hospital, Toulouse, France
| | | | - Ioana Vasies
- Department of Pediatric radiology, Rouen University Hospital, Rouen, France
| | - Claire Dupont-Lucas
- Department of Pediatrics, Caen University Hospital, Caen, France
- INSERM UMR 1073 ADEN, Institute for Biomedical Research, Rouen, France
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Pham A, Ecochard-Dugelay E, Bonnard A, Le Roux E, Gelas T, Rousseau V, Thomassin N, Cabon-Boudard I, Nicolas A, Guinot A, Rebeuh J, Le Mandat A, Djeddi DD, Fouquet V, Boucharny A, Irtan S, Lemale J, Comte A, Bridoux-Henno L, Dupont-Lucas C, Dimitrov G, Turquet A, Borderon C, Pelatan C, Chaillou Legault E, Jung C, Willot S, Montalva L, Mitanchez D, Gottrand F, Bellaiche M. Feeding disorders in children with oesophageal atresia: a cross-sectional study. Arch Dis Child 2022; 107:52-58. [PMID: 33863700 DOI: 10.1136/archdischild-2020-320609] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 02/19/2021] [Accepted: 03/04/2021] [Indexed: 11/03/2022]
Abstract
INTRODUCTION With advances in surgical and neonatal care, the survival of patients with oesophageal atresia (OA) has improved over time. Whereas a number of OA-related conditions (delayed primary anastomosis, anastomotic stricture and oesophageal dysmotility) may have an impact on feeding development and although children with OA experience several oral aversive events, paediatric feeding disorders (PFD) remain poorly described in this population. The primary aim of our study was to describe PFD in children born with OA, using a standardised scale. The secondary aim was to determine conditions associated with PFD. METHODS The Feeding Disorders in Children with Oesophageal Atresia Study is a national cohort study based on the OA registry from the French National Network. Parents of children born with OA between 2013 and 2016 in one of the 22 participating centres were asked to complete the French version of the Montreal Children's Hospital Feeding Scale. RESULTS Of the 248 eligible children, 145 children, with a median age of 2.3 years (Q1-Q3 1.8-2.9, min-max 1.1-4.0 years), were included. Sixty-one children (42%) developed PFD; 13% were tube-fed (n=19). Almost 40% of children with PFD failed to thrive (n=23). The presence of chronic respiratory symptoms was associated with the development of PFD. Ten children with PFD (16%) had no other condition or OA-related complication. CONCLUSION PFD are common in children with OA, and there is no typical profile of patients at risk of PFD. Therefore, all children with OA require a systematic screening for PFD that could improve the care and outcomes of patients, especially in terms of growth.
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Affiliation(s)
- Aurélie Pham
- AP-HP, Department of Neonatology, Armand-Trousseau Childrens Hospital, Paris, France
| | - Emmanuelle Ecochard-Dugelay
- AP-HP, Service des Maladies Digestives de l'Enfant, Hôpital Universitaire Mère-enfant Robert-Debré, Paris, France
| | - Arnaud Bonnard
- Department of General Pediatric Surgery, Robert Debre Children University Hospital, APHP, Paris, France
| | - Enora Le Roux
- AP-HP, Paris, France, Nord-Université de Paris, Hôpital Robert Debré, Unité d'épidémiologie clinique, Inserm, CIC 1426, Robert-Debré Hospital, Paris, France
| | - Thomas Gelas
- Hôpital Femme-Mère-Enfant, Service de Chirurgie Pédiatrique, CHU Lyon, Lyon, France
| | - Véronique Rousseau
- Pediatric Surgery, APHP, Hôpital Universitaire Necker-Enfants Malades, Paris, France
| | - Nadège Thomassin
- Hépato-Gastroentérologie Pédiatrique, University Hospital Centre Grenoble Alpes, Grenoble, France
| | - Isabelle Cabon-Boudard
- AP-HM, Service de Pédiatrie, Hôpital de la Timone, Marseille, Provence-Alpes-Côte d'Azu, France
| | - Audrey Nicolas
- Centre de Reference des Affections Chroniques et Malformatives de l'œsophage, CHU Lille, Lille, France
| | - Audrey Guinot
- Service de Chirurgie Infantile, CHU de Nantes, Hôpital Mère-enfant, Nantes, France
| | - Julie Rebeuh
- Department of Pediatrics, University Hospital Centre Strasbourg, Strasbourg, France
| | - Aurélie Le Mandat
- Service de Chirurgie Viscérale Pédiatrique, CHU de Toulouse, France, Hôpital des Enfants, Toulouse, France
| | - Djamal-Dine Djeddi
- Service de Pédiatrie Médicale, CHU Amiens Picardie, France, Pôle Femme Couple Enfant, Amiens, France
| | - Virginie Fouquet
- Paediatric Surgery, Paris South University Hospitals, Assistance Publique Hôpitaux de Paris, Le Kremlin Bicetre, France
| | - Aurélie Boucharny
- Service de Pédiatrie, CHU Dijon, France, Hôpital d'Enfants, Dijon, France
| | - Sabine Irtan
- Department of Pediatric Surgery, Armand-Trousseau Childrens Hospital, Paris, France
| | - Julie Lemale
- Department of Pediatric Gastroenterology, Armand-Trousseau Children's Hospital, Paris, France
| | - Aurélie Comte
- Service de Médecine Pédiatrique, CHU Besançon, Besançon, France
| | - Laure Bridoux-Henno
- Département de Médecine de l'Enfant et de l'Adolescent, CHU Rennes Unité de Nutrition, Rennes, France
| | - Claire Dupont-Lucas
- Pediatrics, Gastroenterology Unit, Centre Hospitalier Universitaire de Caen, Caen, France
| | - Georges Dimitrov
- Service de Chirurgie Pédiatrique, CHR d'Orléans, Orléans, France
| | - Anne Turquet
- Service de Pédiatrie, CHU La Réunion, La Reunion, France
| | - Corinne Borderon
- Service de pédiatrie, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Cécile Pelatan
- service de pédiatrie, CH Le Mans, Le Mans, Pays de la Loire, France
| | | | - Camille Jung
- Service de Pédiatrie, CH Intercommunal de Créteil, Creteil, France
| | - Stéphanie Willot
- Service de Médecine Pédiatrique, CHRU de Tours, Hôpital Clocheville, Tours, France
| | - Louise Montalva
- Department of General Pediatric Surgery, Robert Debre Children University Hospital, APHP, Paris, France
| | - Delphine Mitanchez
- Service de Néonatologie, CHRU de Tours, France, Hôpital Bretonneau, Tours, France
| | - Frederic Gottrand
- Centre de Reference des Affections Chroniques et Malformatives de l'œsophage, CHU Lille, Lille, France
| | - Marc Bellaiche
- AP-HP, Service des Maladies Digestives de l'Enfant, Hôpital Universitaire Mère-enfant Robert-Debré, Paris, France
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Bastard P, Orlova E, Sozaeva L, Lévy R, James A, Schmitt MM, Ochoa S, Kareva M, Rodina Y, Gervais A, Le Voyer T, Rosain J, Philippot Q, Neehus AL, Shaw E, Migaud M, Bizien L, Ekwall O, Berg S, Beccuti G, Ghizzoni L, Thiriez G, Pavot A, Goujard C, Frémond ML, Carter E, Rothenbuhler A, Linglart A, Mignot B, Comte A, Cheikh N, Hermine O, Breivik L, Husebye ES, Humbert S, Rohrlich P, Coaquette A, Vuoto F, Faure K, Mahlaoui N, Kotnik P, Battelino T, Trebušak Podkrajšek K, Kisand K, Ferré EM, DiMaggio T, Rosen LB, Burbelo PD, McIntyre M, Kann NY, Shcherbina A, Pavlova M, Kolodkina A, Holland SM, Zhang SY, Crow YJ, Notarangelo LD, Su HC, Abel L, Anderson MS, Jouanguy E, Neven B, Puel A, Casanova JL, Lionakis MS. Preexisting autoantibodies to type I IFNs underlie critical COVID-19 pneumonia in patients with APS-1. J Exp Med 2021; 218:e20210554. [PMID: 33890986 PMCID: PMC8077172 DOI: 10.1084/jem.20210554] [Citation(s) in RCA: 160] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 12/15/2022] Open
Abstract
Patients with biallelic loss-of-function variants of AIRE suffer from autoimmune polyendocrine syndrome type-1 (APS-1) and produce a broad range of autoantibodies (auto-Abs), including circulating auto-Abs neutralizing most type I interferons (IFNs). These auto-Abs were recently reported to account for at least 10% of cases of life-threatening COVID-19 pneumonia in the general population. We report 22 APS-1 patients from 21 kindreds in seven countries, aged between 8 and 48 yr and infected with SARS-CoV-2 since February 2020. The 21 patients tested had auto-Abs neutralizing IFN-α subtypes and/or IFN-ω; one had anti-IFN-β and another anti-IFN-ε, but none had anti-IFN-κ. Strikingly, 19 patients (86%) were hospitalized for COVID-19 pneumonia, including 15 (68%) admitted to an intensive care unit, 11 (50%) who required mechanical ventilation, and four (18%) who died. Ambulatory disease in three patients (14%) was possibly accounted for by prior or early specific interventions. Preexisting auto-Abs neutralizing type I IFNs in APS-1 patients confer a very high risk of life-threatening COVID-19 pneumonia at any age.
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Affiliation(s)
- Paul Bastard
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | | | | | - Romain Lévy
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- Pediatric Immunology, Hematology and Rheumatology Unit, Necker Hospital for Sick Children, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Alyssa James
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Monica M. Schmitt
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Sebastian Ochoa
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | | | - Yulia Rodina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Adrian Gervais
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Tom Le Voyer
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Jérémie Rosain
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Quentin Philippot
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Anna-Lena Neehus
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
| | - Elana Shaw
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Mélanie Migaud
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
| | - Lucy Bizien
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
| | - Olov Ekwall
- Department of Pediatrics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Sweden
- Department of Rheumatology and Inflammation Research, Institute of Medicine, The Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Stefan Berg
- Department of Pediatrics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Sweden
| | | | - Lucia Ghizzoni
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Gérard Thiriez
- Intensive Care Unit, Besançon Hospital, Besançon, France
| | - Arthur Pavot
- Intensive Care Unit, Kremlin-Bicêtre Hospital, Kremlin-Bicêtre, France
| | - Cécile Goujard
- Internal Medicine Department, Bicêtre Hospital, Assistance Publique Hôpitaux de Paris, Paris Saclay University, Institut National de la Santé et de la Recherche Médicale U1018, Le Kremlin-Bicêtre, France
| | - Marie-Louise Frémond
- Pediatric Immunology, Hematology and Rheumatology Unit, Necker Hospital for Sick Children, Assistance Publique Hôpitaux de Paris, Paris, France
- Laboratory of Neurogenetics and Neuroinflammation, Université de Paris, Imagine Institute, Paris, France
| | - Edwin Carter
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, Edinburgh, UK
| | - Anya Rothenbuhler
- Pediatric Endocrinology Department, Bicêtre Hospital, Assistance Publique Hôpitaux de Paris, Paris Saclay University, Le Kremlin-Bicêtre, France
| | - Agnès Linglart
- Pediatric Endocrinology Department, Bicêtre Hospital, Assistance Publique Hôpitaux de Paris, Paris Saclay University, Le Kremlin-Bicêtre, France
| | - Brigite Mignot
- Pediatric Medicine Unit, University Hospital of Besançon, Besançon, France
| | - Aurélie Comte
- Pediatric Medicine Unit, University Hospital of Besançon, Besançon, France
| | - Nathalie Cheikh
- Pediatric Hematology Unit, University Hospital of Besançon, Besançon, France
| | - Olivier Hermine
- University of Paris, Imagine Institute, Paris, France
- Hematology department, University of Paris, Necker Hospital for Sick Children, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Lars Breivik
- Department of Clinical Science and K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
| | - Eystein S. Husebye
- Department of Clinical Science and K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
- Department of Medicine, Haukeland University Hospital, Bergen, Norway
- Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | | | - Pierre Rohrlich
- Pediatric Hematology and Oncology unit, Centre Hospitalier Universitaire de Nice, Nice, France
| | | | - Fanny Vuoto
- Infectious Disease Unit, Lille Hospital, Lille, France
| | - Karine Faure
- Infectious Disease Unit, Lille Hospital, Lille, France
| | - Nizar Mahlaoui
- Pediatric Immunology, Hematology and Rheumatology Unit, Necker Hospital for Sick Children, Assistance Publique Hôpitaux de Paris, Paris, France
- Centre de Référence Déficits Immunitaires Héréditaires, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Primož Kotnik
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- University Medical Centre Ljubljana, University Children's Hospital, Ljubljana, Slovenia
| | - Tadej Battelino
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- University Medical Centre Ljubljana, University Children's Hospital, Ljubljana, Slovenia
| | - Katarina Trebušak Podkrajšek
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- University Medical Centre Ljubljana, University Children's Hospital, Ljubljana, Slovenia
| | - Kai Kisand
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Elise M.N. Ferré
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Thomas DiMaggio
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Lindsey B. Rosen
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Peter D. Burbelo
- National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD
| | | | - Nelli Y. Kann
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anna Shcherbina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Maria Pavlova
- Department of Endocrinology N°1, Sechenov University, Moscow, Russia
| | | | - Steven M. Holland
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Shen-Ying Zhang
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Yanick J. Crow
- Laboratory of Neurogenetics and Neuroinflammation, Université de Paris, Imagine Institute, Paris, France
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, Edinburgh, UK
| | - Luigi D. Notarangelo
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Helen C. Su
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Laurent Abel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Mark S. Anderson
- Diabetes Center, University of California, San Francisco, San Francisco, CA
| | - Emmanuelle Jouanguy
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Bénédicte Neven
- University of Paris, Imagine Institute, Paris, France
- Pediatric Immunology, Hematology and Rheumatology Unit, Necker Hospital for Sick Children, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Anne Puel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Jean-Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, Necker Hospital for Sick Children, Paris, France
- University of Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Howard Hughes Medical Institute, New York, NY
| | - Michail S. Lionakis
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
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4
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Mercier C, Pioche M, Albuisson E, Ponchon T, Gonzalez JM, Barthet M, Boytchev I, Vanbiervliet G, Fortier Beaulieu C, Prat F, Belle A, Branche J, Grandval P, Valats JC, Rudler F, Wallenhorst T, Koch S, Comte A, Williet N, Musquer N, Coron E, Derosiere A, Le Mouel JP, Schaefer M, Chabot C, Scheers I, Deprez PH, Chevaux JB. Safety of endoscopic retrograde cholangiopancreatography in the pediatric population: a multicenter study. Endoscopy 2021; 53:586-594. [PMID: 32599632 DOI: 10.1055/a-1209-0155] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The aims of this retrospective multicenter study were to assess the technical success and adverse events of endoscopic retrograde cholangiopancreatography (ERCP) procedures in children in French and Belgian centers. METHODS All children aged 1 day to 17 years who underwent ERCP between January 2008 and March 2019 in 15 tertiary care hospitals were retrospectively included. RESULTS 271 children underwent 470 ERCP procedures. Clinical long-term follow-up was available for 72 % of our patients (340/470 procedures). The median age at intervention was 10.9 years. ERCP was therapeutic in 90 % (423/470) and diagnostic in cases of neonatal cholestasis in 10 % of the patients. The most common biliary indication was choledocholithiasis; the most common pancreatic indication was chronic pancreatitis. Biliary cannulation was successful in 92 % of cases (270/294); pancreatic cannulation in 96 % of cases (169/176); and planned therapeutic procedures in 92 % of cases (388/423). The overall complication rate was 19 % (65/340). The most common complication was post-ERCP pancreatitis (PEP) in 12 % of cases (40/340) and sepsis in 5 % (18/340). On univariate analyses, pancreatic stent removal was protective against PEP (odds ratio [OR] 0.1, 95 % confidence interval [CI] 0.01 - 0.75; P = 0.03), and sepsis was associated with history of liver transplantation (OR 7.27, 95 %CI 1.7 - 31.05; P = 0.01). Five patients had post-ERCP hemorrhage and two had intestinal perforation. All complications were managed with supportive medical care. There was no procedure-related mortality. CONCLUSION Our cohort demonstrates that ERCP can be performed safely with high success rates in many pancreaticobiliary diseases of children. The rate of adverse events was similar to that in previous reports.
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Affiliation(s)
- Clémence Mercier
- Department of Pediatric Gastroenterology Hepatology and Nutrition, Children's Hospital of Nancy, Nancy, France
| | - Mathieu Pioche
- Department of Endoscopy and Gastroenterology, Hôpital Edouard Herriot, Lyon, France
| | - Eliane Albuisson
- CHRU-Nancy, DRCI, Département MPI, Unité de Méthodologie, Data management et Statistique UMDS, Nancy, France
| | - Thierry Ponchon
- Department of Endoscopy and Gastroenterology, Hôpital Edouard Herriot, Lyon, France
| | - Jean-Michel Gonzalez
- Department of Digestive Endoscopy, Aix-Marseille Université, AP-HM, Hôpital Nord, Marseille, France
| | - Marc Barthet
- Department of Digestive Endoscopy, Aix-Marseille Université, AP-HM, Hôpital Nord, Marseille, France
| | - Isabelle Boytchev
- Gastroenterology Department, Kremlin-Bicêtre University Hospital, Paris, France
| | | | | | - Frederic Prat
- Department of Gastroenterology, Cochin Hospital, Paris, France
| | - Arthur Belle
- Department of Gastroenterology, Cochin Hospital, Paris, France
| | - Julien Branche
- Gastroenterology Department, Claude Huriez Hospital, Lille, France
| | - Phillipe Grandval
- Hepatogastroenterology Department, AP-HM, Hôpital La Timone, Marseille, France
| | | | - Franz Rudler
- Department of Endoscopy and Gastroenterology, Lapeyronie Hospital, Montpellier, France
| | - Timothee Wallenhorst
- Department of Gastroenterology, University Hospital of Rennes, Pontchaillou, France
| | - Stephane Koch
- Department of Gastroenterology, University Hospital of Besançon, Besançon, France
| | - Aurélie Comte
- Department of Pediatric Hepatology, Gastroenterology and Nutrition, CHU Besançon, Besançon, France
| | - Nicolas Williet
- Department of Hepato-gastro-enterology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Nicolas Musquer
- Digestive Endoscopy Department, Nantes University Hospital, Nantes, France
| | - Emmanuel Coron
- Digestive Endoscopy Department, Nantes University Hospital, Nantes, France
| | - Aline Derosiere
- Department of Gastroenterology, Amiens University Hospital, Université de Picardie Jules Verne, Amiens, France
| | - Jean-Phillippe Le Mouel
- Department of Gastroenterology, Amiens University Hospital, Université de Picardie Jules Verne, Amiens, France
| | - Marion Schaefer
- Department of Endoscopy and Hepatogastroenterology, Regional University Hospital of Nancy, Nancy, France
| | - Caroline Chabot
- Department of Pediatric Gastroenterology Hepatology and Nutrition, Children's Hospital of Nancy, Nancy, France
| | - Isabelle Scheers
- Department of Pediatric Gastroenterology and Hepatology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Pierre H Deprez
- Department of Hepatogastroenterology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Jean-Baptiste Chevaux
- Department of Endoscopy and Hepatogastroenterology, Regional University Hospital of Nancy, Nancy, France
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5
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Callens C, Driouch K, Boulai A, Tariq Z, Comte A, Berger F, Belin L, Bièche I, Servois V, Legoix P, Bernard V, Baulande S, Chemlali W, Bidard FC, Fourchotte V, Salomon AV, Brain E, Lidereau R, Bachelot T, Saghatchian M, Campone M, Giacchetti S, Zafrani BS, Cottu P. Molecular features of untreated breast cancer and initial metastatic event inform clinical decision-making and predict outcome: long-term results of ESOPE, a single-arm prospective multicenter study. Genome Med 2021; 13:44. [PMID: 33722295 PMCID: PMC7962302 DOI: 10.1186/s13073-021-00862-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/25/2021] [Indexed: 12/04/2022] Open
Abstract
Background Prognosis evaluation of advanced breast cancer and therapeutic strategy are mostly based on clinical features of advanced disease and molecular profiling of the primary tumor. Very few studies have evaluated the impact of metastatic subtyping during the initial metastatic event in a prospective study. The genomic landscape of metastatic breast cancer has mostly been described in very advanced, pretreated disease, limiting the findings transferability to clinical use. Methods We developed a multicenter, single-arm, prospective clinical trial in order to address these issues. Between November 2010 and September 2013, 123 eligible patients were included. Patients at the first, untreated metastatic event were eligible. All matched primary tumors and metastatic samples were centrally reviewed for pathological typing. Targeted and whole-exome sequencing was applied to matched pairs of frozen tissue. A multivariate overall survival analysis was performed (median follow-up 64 months). Results Per central review in 84 patients (out of 130), we show that luminal A breast tumors are more prone to subtype switching. By combining targeted sequencing of a 91 gene panel (n = 67) and whole-exome sequencing (n = 30), a slight excess of mutations is observed in the metastases. Luminal A breast cancer has the most heterogeneous mutational profile and the highest number of mutational signatures, when comparing primary tumor and the matched metastatic tissue. Tumors with a subtype change have more mutations that are private. The metastasis-specific mutation load is significantly higher in late than in de novo metastases. The most frequently mutated genes were TP53 and PIK3CA. The most frequent metastasis-specific druggable genes were PIK3CA, PTEN, KDR, ALK, CDKN2A, NOTCH4, POLE, SETD2, SF3B1, and TSC2. Long-term outcome is driven by a combination of tumor load and metastasis biology. Conclusions Profiling of the first, untreated, metastatic event of breast cancer reveals a profound heterogeneity mostly in luminal A tumors and in late metastases. Based on this profiling, we can derive information relevant to prognosis and therapeutic intervention, which support current guidelines recommending a biopsy at the first metastatic relapse. Trial registration The trial was registered at ClinicalTrials.gov (NCT01956552). Supplementary Information The online version contains supplementary material available at 10.1186/s13073-021-00862-6.
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Affiliation(s)
- Céline Callens
- Genetics Department, Institut Curie, PSL Research University, Paris, France
| | - Keltouma Driouch
- Genetics Department, Institut Curie, PSL Research University, Paris, France
| | - Anaïs Boulai
- Genetics Department, Institut Curie, PSL Research University, Paris, France
| | - Zakia Tariq
- Genetics Department, Institut Curie, PSL Research University, Paris, France
| | - Aurélie Comte
- Department of Medical Oncology, Institut Curie, PSL Research University, 26 rue d'Ulm, 75005, Paris, France
| | | | - Lisa Belin
- Department of Biostatistics, Institut Curie, Saint-Cloud, France
| | - Ivan Bièche
- Genetics Department, Institut Curie, PSL Research University, Paris, France
| | - Vincent Servois
- Imaging Department, Institut Curie, PSL Research University, Paris, France
| | - Patricia Legoix
- Institut Curie Genomics of Excellence (ICGex) Platform, Institut Curie Research Center, PSL Research University, Paris, France
| | - Virginie Bernard
- Institut Curie Genomics of Excellence (ICGex) Platform, Institut Curie Research Center, PSL Research University, Paris, France
| | - Sylvain Baulande
- Institut Curie Genomics of Excellence (ICGex) Platform, Institut Curie Research Center, PSL Research University, Paris, France
| | - Walid Chemlali
- Genetics Department, Institut Curie, PSL Research University, Paris, France
| | - François-Clément Bidard
- Department of Medical Oncology, Institut Curie, PSL Research University, 26 rue d'Ulm, 75005, Paris, France
| | | | - Anne Vincent- Salomon
- Pathology and Tumor Biology Department, Institut Curie, PSL Research University, Paris, France
| | - Etienne Brain
- Medical Oncology, Institut Curie, Saint-Cloud, France
| | - Rosette Lidereau
- Genetics Department, Institut Curie, PSL Research University, Paris, France
| | | | | | - Mario Campone
- Institut de Cancérologie de l'Ouest Nantes, Nantes, France
| | | | - Brigitte Sigal Zafrani
- Pathology and Tumor Biology Department, Institut Curie, PSL Research University, Paris, France
| | - Paul Cottu
- Department of Medical Oncology, Institut Curie, PSL Research University, 26 rue d'Ulm, 75005, Paris, France.
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6
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Bastian FB, Roux J, Niknejad A, Comte A, Fonseca Costa SS, de Farias TM, Moretti S, Parmentier G, de Laval VR, Rosikiewicz M, Wollbrett J, Echchiki A, Escoriza A, Gharib WH, Gonzales-Porta M, Jarosz Y, Laurenczy B, Moret P, Person E, Roelli P, Sanjeev K, Seppey M, Robinson-Rechavi M. The Bgee suite: integrated curated expression atlas and comparative transcriptomics in animals. Nucleic Acids Res 2021; 49:D831-D847. [PMID: 33037820 PMCID: PMC7778977 DOI: 10.1093/nar/gkaa793] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/24/2020] [Accepted: 09/15/2020] [Indexed: 01/24/2023] Open
Abstract
Bgee is a database to retrieve and compare gene expression patterns in multiple animal species, produced by integrating multiple data types (RNA-Seq, Affymetrix, in situ hybridization, and EST data). It is based exclusively on curated healthy wild-type expression data (e.g., no gene knock-out, no treatment, no disease), to provide a comparable reference of normal gene expression. Curation includes very large datasets such as GTEx (re-annotation of samples as ‘healthy’ or not) as well as many small ones. Data are integrated and made comparable between species thanks to consistent data annotation and processing, and to calls of presence/absence of expression, along with expression scores. As a result, Bgee is capable of detecting the conditions of expression of any single gene, accommodating any data type and species. Bgee provides several tools for analyses, allowing, e.g., automated comparisons of gene expression patterns within and between species, retrieval of the prefered conditions of expression of any gene, or enrichment analyses of conditions with expression of sets of genes. Bgee release 14.1 includes 29 animal species, and is available at https://bgee.org/ and through its Bioconductor R package BgeeDB.
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Affiliation(s)
- Frederic B Bastian
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Julien Roux
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Anne Niknejad
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Aurélie Comte
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Sara S Fonseca Costa
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Tarcisio Mendes de Farias
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Sébastien Moretti
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Gilles Parmentier
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Valentine Rech de Laval
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Marta Rosikiewicz
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Julien Wollbrett
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Amina Echchiki
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Angélique Escoriza
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Walid H Gharib
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Mar Gonzales-Porta
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Yohan Jarosz
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Balazs Laurenczy
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Philippe Moret
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Emilie Person
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Patrick Roelli
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Komal Sanjeev
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Mathieu Seppey
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Marc Robinson-Rechavi
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.,SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
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7
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Ricquart Wandaele A, Kastler A, Comte A, Hadjidekov G, Kechidi R, Helenon O, Kastler B. CT-guided infiltration of greater occipital nerve for refractory craniofacial pain syndromes other than occipital neuralgia. Diagn Interv Imaging 2020; 101:643-648. [DOI: 10.1016/j.diii.2020.05.006] [Citation(s) in RCA: 2] [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: 04/02/2020] [Revised: 04/23/2020] [Accepted: 05/05/2020] [Indexed: 12/30/2022]
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8
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Duszynska D, Vilhjalmsson B, Castillo Bravo R, Swamidatta S, Juenger TE, Donoghue MTA, Comte A, Nordborg M, Sharbel TF, Brychkova G, McKeown PC, Spillane C. Transgenerational effects of inter-ploidy cross direction on reproduction and F2 seed development of Arabidopsis thaliana F1 hybrid triploids. Plant Reprod 2019; 32:275-289. [PMID: 30903284 PMCID: PMC6675909 DOI: 10.1007/s00497-019-00369-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 03/05/2019] [Indexed: 05/15/2023]
Abstract
Reproduction in triploid plants is important for understanding polyploid population dynamics. We show that genetically identical reciprocal F1 hybrid triploids can display transgenerational epigenetic effects on viable F2 seed development. The success or failure of reproductive outcomes from intra-species crosses between plants of different ploidy levels is an important factor in flowering plant evolution and crop breeding. However, the effects of inter-ploidy cross directions on F1 hybrid offspring fitness are poorly understood. In Arabidopsis thaliana, hybridization between diploid and tetraploid plants can produce viable F1 triploid plants. When selfed, such F1 triploid plants act as aneuploid gamete production "machines" where the vast majority of gametes generated are aneuploid which, following sexual reproduction, can generate aneuploid swarms of F2 progeny (Henry et al. 2009). There is potential for some aneuploids to cause gametophyte abortion and/or F2 seed abortion (Henry et al. 2009). In this study, we analyse the reproductive success of 178 self-fertilized inter-accession F1 hybrid triploids and demonstrate that the proportions of aborted or normally developed F2 seeds from the selfed F1 triploids depend upon a combination of natural variation and cross direction, with strong interaction between these factors. Single-seed ploidy analysis indicates that the embryonic DNA content of phenotypically normal F2 seeds is highly variable and that these DNA content distributions are also affected by genotype and cross direction. Notably, genetically identical reciprocal F1 hybrid triploids display grandparent-of-origin effects on F2 seed set, and hence on the ability to tolerate aneuploidy in F2 seed. There are differences between reciprocal F1 hybrid triploids regarding the proportions of normal and aborted F2 seeds generated, and also for the DNA content averages and distributions of the F2 seeds. To identify genetic variation for tolerance of aneuploidy in F2 seeds, we carried out a GWAS which identified two SNPs, termed MOT and POT, which represent candidate loci for genetic control of the proportion of normal F2 seeds obtained from selfed F1 triploids. Parental and grandparental effects on F2 seeds obtained from selfed F1 triploids can have transgenerational consequences for asymmetric gene flow, emergence of novel genotypes in polyploid populations, and for control of F2 seed set in triploid crops.
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Affiliation(s)
- Dorota Duszynska
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
| | - Bjarni Vilhjalmsson
- Gregor Mendel Institute of Molecular Plant Biology, Vienna, Austria
- Present Address: Bioinformatics Research Centre, Aarhus University, Århus, Denmark
| | - Rosa Castillo Bravo
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
| | - Sandesh Swamidatta
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
- Present Address: Department of Biology, Centre for Novel Agricultural Products (CNAP), University of York, York, UK
| | - Thomas E. Juenger
- Section of Integrative Biology and Institute for Cellular and Molecular Biology, University of Texas, Austin, USA
| | - Mark T. A. Donoghue
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
- Present Address: Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Aurélie Comte
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
| | - Magnus Nordborg
- Gregor Mendel Institute of Molecular Plant Biology, Vienna, Austria
| | - Timothy F. Sharbel
- Apomixis Research Group, Department of Cytogenetics and Genome Analysis, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
- Seed and Developmental Biology Program, Global Institute for Food Security, University of Saskatchewan, Saskatoon, SK S7N 4J8 Canada
| | - Galina Brychkova
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
| | - Peter C. McKeown
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
| | - Charles Spillane
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), Ryan Institute, National University of Ireland, Galway, H91 REW4 Ireland
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9
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Delehouzé C, Leverrier-Penna S, Le Cann F, Comte A, Jacquard-Fevai M, Delalande O, Desban N, Baratte B, Gallais I, Faurez F, Bonnet MC, Hauteville M, Goekjian PG, Thuillier R, Favreau F, Vandenabeele P, Hauet T, Dimanche-Boitrel MT, Bach S. 6E11, a highly selective inhibitor of Receptor-Interacting Protein Kinase 1, protects cells against cold hypoxia-reoxygenation injury. Sci Rep 2017; 7:12931. [PMID: 29018243 PMCID: PMC5635128 DOI: 10.1038/s41598-017-12788-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 09/15/2017] [Indexed: 11/24/2022] Open
Abstract
Necroptosis is a programmed cell death pathway that has been shown to be of central pathophysiological relevance in multiple disorders (hepatitis, brain and cardiac ischemia, pancreatitis, viral infection and inflammatory diseases). Necroptosis is driven by two serine threonine kinases, RIPK1 (Receptor Interacting Protein Kinase 1) and RIPK3, and a pseudo-kinase MLKL (Mixed Lineage Kinase domain-Like) associated in a multi-protein complex called necrosome. In order to find new inhibitors for use in human therapy, a chemical library containing highly diverse chemical structures was screened using a cell-based assay. The compound 6E11, a natural product derivative, was characterized as a positive hit. Interestingly, this flavanone compound: inhibits necroptosis induced by death receptors ligands TNF-α (Tumor Necrosis Factor) or TRAIL (TNF-Related Apoptosis-Inducing Ligand); is an extremely selective inhibitor, among kinases, of human RIPK1 enzymatic activity with a nM Kd; has a non-ATP competitive mode of action and a novel putative binding site; is weakly cytotoxic towards human primary blood leukocytes or retinal pigment epithelial cells at effective concentrations; protects human aortic endothelial cells (HAEC) from cold hypoxia/reoxygenation injury more effectively than necrostatin-1 (Nec-1) and Nec-1s. Altogether, these data demonstrate that 6E11 is a novel potent small molecular inhibitor of RIPK1-driven necroptosis.
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Affiliation(s)
- C Delehouzé
- Sorbonne Universités, UPMC Univ Paris 06, CNRS USR3151, Protein Phosphorylation and Human Disease Laboratory, Station Biologique, F-29688, Roscoff, France
| | - S Leverrier-Penna
- INSERM UMR 1085, Institut de Recherche sur la Santé, l'Environnement et le Travail, F-35043, Rennes, France.,Biosit UMS 3080, Université de Rennes 1, F-35043, Rennes, France
| | - F Le Cann
- INSERM UMR 1085, Institut de Recherche sur la Santé, l'Environnement et le Travail, F-35043, Rennes, France.,Biosit UMS 3080, Université de Rennes 1, F-35043, Rennes, France.,Molecular Signaling and Cell Death Unit, VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - A Comte
- Université de Lyon, CNRS UMR 5246, ICBMS, Chimiothèque, Université Claude Bernard Lyon 1, F-69622, Villeurbanne, France
| | - M Jacquard-Fevai
- Inserm, U1082, Poitiers, France.,CHU de Poitiers, Service de Biochimie, Poitiers, France.,Université de Poitiers, Faculté de Médecine et de Pharmacie, Poitiers, France.,Fédération Hospitalo-Universitaire SUPORT, Poitiers, France.,IBiSA Plateforme 'MOPICT', Institut national de la recherche agronomique, Unité expérimentale Génétique, expérimentations et systèmes innovants, Domaine Expérimental du Magneraud, Surgères, France
| | - O Delalande
- CNRS UMR 6290, Institut de Génétique et Développement de Rennes, Université de Rennes 1, F-35043, Rennes, France
| | - N Desban
- Sorbonne Universités, UPMC Univ Paris 06, CNRS USR3151, Protein Phosphorylation and Human Disease Laboratory, Station Biologique, F-29688, Roscoff, France
| | - B Baratte
- Sorbonne Universités, UPMC Univ Paris 06, CNRS USR3151, Protein Phosphorylation and Human Disease Laboratory, Station Biologique, F-29688, Roscoff, France
| | - I Gallais
- INSERM UMR 1085, Institut de Recherche sur la Santé, l'Environnement et le Travail, F-35043, Rennes, France.,Biosit UMS 3080, Université de Rennes 1, F-35043, Rennes, France
| | - F Faurez
- INSERM UMR 1085, Institut de Recherche sur la Santé, l'Environnement et le Travail, F-35043, Rennes, France.,Biosit UMS 3080, Université de Rennes 1, F-35043, Rennes, France
| | - M C Bonnet
- INSERM UMR 1085, Institut de Recherche sur la Santé, l'Environnement et le Travail, F-35043, Rennes, France.,Biosit UMS 3080, Université de Rennes 1, F-35043, Rennes, France.,Division of Infection & Immunity, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom
| | - M Hauteville
- Laboratoire de Biochimie Analytique et Synthèse Bioorganique, Université de Lyon, Université Claude Bernard Lyon 1, F-69622, Villeurbanne, France
| | - P G Goekjian
- Université de Lyon, CNRS UMR 5246, ICBMS, Laboratoire Chimie Organique 2-Glycosciences, Université Claude Bernard Lyon 1, F-69622, Villeurbanne, France
| | - R Thuillier
- Inserm, U1082, Poitiers, France.,CHU de Poitiers, Service de Biochimie, Poitiers, France.,Université de Poitiers, Faculté de Médecine et de Pharmacie, Poitiers, France.,Fédération Hospitalo-Universitaire SUPORT, Poitiers, France.,IBiSA Plateforme 'MOPICT', Institut national de la recherche agronomique, Unité expérimentale Génétique, expérimentations et systèmes innovants, Domaine Expérimental du Magneraud, Surgères, France
| | - F Favreau
- Inserm, U1082, Poitiers, France.,CHU de Poitiers, Service de Biochimie, Poitiers, France.,Université de Poitiers, Faculté de Médecine et de Pharmacie, Poitiers, France.,Fédération Hospitalo-Universitaire SUPORT, Poitiers, France.,IBiSA Plateforme 'MOPICT', Institut national de la recherche agronomique, Unité expérimentale Génétique, expérimentations et systèmes innovants, Domaine Expérimental du Magneraud, Surgères, France
| | - P Vandenabeele
- Molecular Signaling and Cell Death Unit, VIB Inflammation Research Center, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - T Hauet
- Inserm, U1082, Poitiers, France.,CHU de Poitiers, Service de Biochimie, Poitiers, France.,Université de Poitiers, Faculté de Médecine et de Pharmacie, Poitiers, France.,Fédération Hospitalo-Universitaire SUPORT, Poitiers, France.,IBiSA Plateforme 'MOPICT', Institut national de la recherche agronomique, Unité expérimentale Génétique, expérimentations et systèmes innovants, Domaine Expérimental du Magneraud, Surgères, France
| | - M T Dimanche-Boitrel
- INSERM UMR 1085, Institut de Recherche sur la Santé, l'Environnement et le Travail, F-35043, Rennes, France. .,Biosit UMS 3080, Université de Rennes 1, F-35043, Rennes, France.
| | - S Bach
- Sorbonne Universités, UPMC Univ Paris 06, CNRS USR3151, Protein Phosphorylation and Human Disease Laboratory, Station Biologique, F-29688, Roscoff, France.
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10
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Cottu PH, Boulai A, Callens C, Baulande S, Legoix-Ne P, Bernard V, Vincent-Salomon A, Benhamo V, Brain EGC, Chemlali W, Campone M, Bachelot TD, Giacchetti S, Bonneterre J, Bidard FC, Servois V, Comte A, Belin L, Sigal B, Bièche I. Abstract PD1-06: Comparison of mutational landscapes of primary breast cancer and first metastatic relapse: Results from the ESOPE study. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-pd1-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Genomic profile of breast cancer metastases (M) may differ from that of the primary tumor (PT). In a multicenter prospective study (ESOPE, NCT 01956552) including 130 patients with biopsies of the first metastatic deposit, we have shown that luminal breast cancers are the most prone to phenotypical subtype changes (Comte et al, ASCO 2016#550). We report here the first results of a comparative PT/M targeted next generation sequencing (NGS) mutational analysis.
Methods
Of 130 patients, 117 paired PT/M samples obtained before any treatment were available for analysis. Targeted Sequencing was done using Illumina Hiseq2500 technology with a custom made 95 breast cancer associated genes panel. Sequence data were aligned to the human reference genome (hg19) using Bowtie2 algorithm. Median depth was 607X and 87% of targets achieved 100X depth. SNVs and indels were called using GATK UnifiedGenotyper. We retained COSMIC confirmed non synonymous, exonic/splice variants and observed at a frequency lower than 0,1% in population. Further confirmation of detected variants was performed with comparison to public databases (cbioportal, tumorportal), and potential pathogenicity was evaluated with 4 different public algorithms. We present here the results obtained from the first 35 matched PT/M samples (liver mets 68%), focusing analysis on 40 genes including PIK3CA (20 genes), ER (6 genes) and MAPK (11 genes) pathways, RUNX1, CDH1 and TP53 genes.
Results
Patients characteristics are representative of patients with first line metastatic breast cancer (Comte et al, ASCO 2016#550). Among the 40 genes analyzed in the 70 samples, we detected 134 somatic mutations (70 in PT and 64 in M) including 15 indels and 119 SNV. Among these 134 mutations there were 74 different mutations (66SNV and 8 indels) classified pathogenic for 26 and of unknown pathogenicity for 48 of them. We detected at least 1 mutation in 31 PT and in 28 M. Median numbers of mutations were 1 in PT (range 1-9) and 1 in M (range1-22) samples (p=0.295, Wilcoxon rank sum test). Top ten mutated genes in PT included PIK3CA, TP53, NCOR1, NF1, GATA3, CDH1, ERBB3, PTEN, HRAS, INPP4B. In M samples, the 10 top genes were PIK3CA, TP53, ERBB3, AKT3, CDH1, ERBB4, GATA3, INPP4B, MET, MTOR. Only 3 ESR1 mutations were detected, including 1 PT/M pair and 1 M. Beyond highly shared PIK3CA and TP53 mutations, overall crude PT/M discordance rate was 31%. Analysis by histological subtypes showed PT and M specific mutational profiles, suggesting a role in ERB gene family (notably ERBB3) and MAPK driven pathways in early metastatic progression. Specific metastatic site analysis suggested enrichment in MAPK pathway mutations in liver metastases when compared to other sites. Variant allelic fractions were globally not significantly different between PT and M samples.
Conclusion
In this prospective multicenter series of systematic biopsies of first metastases, we report a targeted mutational analysis of matched PT and M samples not modified by previous therapy exposure. Early analyses suggest specific genotypical changes according to tumor subtype and/or metastatic site. Extended and updated results will be reported at the meeting.
Citation Format: Cottu PH, Boulai A, Callens C, Baulande S, Legoix-Ne P, Bernard V, Vincent-Salomon A, Benhamo V, Brain EGC, Chemlali W, Campone M, Bachelot TD, Giacchetti S, Bonneterre J, Bidard F-C, Servois V, Comte A, Belin L, Sigal B, Bièche I. Comparison of mutational landscapes of primary breast cancer and first metastatic relapse: Results from the ESOPE study [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr PD1-06.
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Affiliation(s)
- PH Cottu
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - A Boulai
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - C Callens
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - S Baulande
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - P Legoix-Ne
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - V Bernard
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - A Vincent-Salomon
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - V Benhamo
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - EGC Brain
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - W Chemlali
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - M Campone
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - TD Bachelot
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - S Giacchetti
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - J Bonneterre
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - F-C Bidard
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - V Servois
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - A Comte
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - L Belin
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - B Sigal
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
| | - I Bièche
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France; Institut de Cancerologie de l'Ouest, Saint Herblain, France; Centre Leon Berard, Lyon, France; CHU Saint Louis, Paris, France; Centre Oscar Lambret, Lille, France
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Comte A, Sigal-Zafrani B, Belin L, Bièche I, Callens C, Diéras V, Bidard FC, Mariani O, Servois V, Szwarc D, Vincent-Salomon A, Brain ECG, Cottu PH. Abstract P2-05-06: Clinical utility of systematic biopsy of first metastatic event in breast cancer: Results from a prospective multicenter trial. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-05-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
BACKGROUND: Cumulative evidence for phenotypic and molecular heterogeneity between primary breast cancer (BC) site and matched metastasis (mets) has been obtained in retrospective studies. Current expert consensus suggests performing biopsies of mets, but clinical utility and cost are unknown. The primary objective of the ESOPE study (NCT01956552) was to compare the phenotype and genotype of the primary tumor (PT) with those of matched mets at time of first distant relapse, before the start of any treatment, in order to optimize the treatment of mets
PATIENTS and METHODS: Between Nov. 2010 and Sept. 2013, we conducted a prospective multicenter study on BC patients (pts) with diagnosis of first mets. All pts were to have available Formalin-Fixed Paraffin-Embedded (FFPE) PT sample and mets accessible to either percutaneous or surgical sampling. All tissue samples were centrally analyzed with immunohistochemistry (ER, PgR, HER2, and Ki67) and FISH when indicated. Frozen samples were stored for further analyses. We recorded intended therapeutic decision before and after biopsy.
RESULTS: Of 93 pts included, 89 were eligible for biopsy. Median age was 57 years (28-81); median interval between PT and mets was 42 months (0-211), including 14 pts with novo metastatic breast cancer. Mets biopsy was performed in 85 pts (96%, refusal n=2, not feasible n=2). Toxicity was limited to only 1 grade 1 hemorrhage. Sampled sites were liver (44%), lung (16%), bone (13%), lymph node (13%), skin/muscle/chest wall (9%), ovary/peritoneum (4%), and adrenal gland (1%). PT was not available in 4 pts; mets biopsy was non contributive in 6 pts but led to a diagnosis of second primary cancer in 3 pts.
In 72 pts with matched PT and mets, PT were luminal A (n=11), luminal B (n=33), triple negative (n=13), HER2 (n=13), non-evaluable (n=2). Mets were luminal A (n=6), luminal B (n=30), triple negative (n=16), HER2 (n=14), non-evaluable (n=6). Discrepancy rates were: ER 18% [kappa for concordance =0.6, CI 95 % (0.42-0.77)], PgR: 39% [kappa=0.19, CI 95% (0.01-0.39)], Her2: 4% [kappa=0.86, CI 95% (0.7-1)], Ki67: 25% [kappa=0.19, CI 95% (-0.09; 0.49)].
The most frequent discrepancy rate was observed in pts with lum A PT, as only 3/10 developed Lum A mets. HER2 and triple negative were the most stable subtypes (12/13 and 12/12 respectively). Most importantly, mets biopsy led to a change in therapeutic decision in 25 pts (independent evaluation by 2 oncologists). Additional comparative targeted NGS analyses are ongoing on a first subset of 54 FFPE paired samples, and parallel whole exome sequencing is planned on 38 paired samples with available constitutional DNA.
CONCLUSION: Comparative analysis of breast cancer PT and first mets is routinely feasible, with very low morbidity and a significant impact for patients' management: 29% had a second cancer diagnosis or were proposed a therapeutic change. Furthermore, this study will provide additional data on quality and quantity of tissue available for molecular analysis, and ultimately in terms of cost-efficacy.
Citation Format: Comte A, Sigal-Zafrani B, Belin L, Bièche I, Callens C, Diéras V, Bidard F-C, Mariani O, Servois V, Szwarc D, Vincent-Salomon A, Brain ECG, Cottu PH. Clinical utility of systematic biopsy of first metastatic event in breast cancer: Results from a prospective multicenter trial. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-05-06.
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Affiliation(s)
- A Comte
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - B Sigal-Zafrani
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - L Belin
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - I Bièche
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - C Callens
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - V Diéras
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - F-C Bidard
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - O Mariani
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - V Servois
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - D Szwarc
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | | | - ECG Brain
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
| | - PH Cottu
- Institut Curie, Paris, France; Institut Curie, Saint Cloud, France
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Comte A, Gabriel D, Pazart L, Magnin E, Cretin E, Haffen E, Moulin T, Aubry R. On the difficulty to communicate with fMRI-based protocols used to identify covert awareness. Neuroscience 2015; 300:448-59. [DOI: 10.1016/j.neuroscience.2015.05.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 05/20/2015] [Accepted: 05/24/2015] [Indexed: 10/23/2022]
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Gabriel D, Henriques J, Comte A, Grigoryeva L, Ortega JP, Cretin E, Brunotte G, Haffen E, Moulin T, Aubry R, Pazart L. Substitute or complement? Defining the relative place of EEG and fMRI in the detection of voluntary brain reactions. Neuroscience 2015; 290:435-44. [DOI: 10.1016/j.neuroscience.2015.01.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 01/17/2015] [Accepted: 01/22/2015] [Indexed: 10/24/2022]
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Comte A, Huillard O, Biau D, Babinet A, Durand J, Dumaine V, Larousserie F, Audard V, Alexandre J, Anract P, Goldwasser F, Boudou Rouquette P. Sarcopenia and Acute Severe Toxicity in Sarcoma Patients Treated with Doxorubicin-Based Chemotherapy. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu354.33] [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: 11/13/2022] Open
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Goffeney J, Dumont P, Neumann F, Chelabi R, Comte A, Amsallem D, Altuzarra C. SFP P-072 – Encéphalopathie épileptique précoce: à propos de 3 cas. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)72042-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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He BJ, Nolte G, Nagata K, Takano D, Yamazaki T, Fujimaki Y, Maeda T, Satoh Y, Heckers S, George MS, Lopes da Silva F, de Munck JC, Van Houdt PJ, Verdaasdonk RM, Ossenblok P, Mullinger K, Bowtell R, Bagshaw AP, Keeser D, Karch S, Segmiller F, Hantschk I, Berman A, Padberg F, Pogarell O, Scharnowski F, Karch S, Hümmer S, Keeser D, Paolini M, Kirsch V, Koller G, Rauchmann B, Kupka M, Blautzik J, Pogarell O, Razavi N, Jann K, Koenig T, Kottlow M, Hauf M, Strik W, Dierks T, Gotman J, Vulliemoz S, Lu Y, Zhang H, Yang L, Worrell G, He B, Gruber O, Piguet C, Hubl D, Homan P, Kindler J, Dierks T, Kim K, Steinhoff U, Wakai R, Koenig T, Kottlow M, Melie-García L, Mucci A, Volpe U, Prinster A, Salvatore M, Galderisi S, Linden DEJ, Brandeis D, Schroeder CE, Kayser C, Panzeri S, Kleinschmidt A, Ritter P, Walther S, Haueisen J, Lau S, Flemming L, Sonntag H, Maess B, Knösche TR, Lanfer B, Dannhauer M, Wolters CH, Stenroos M, Haueisen J, Wolters C, Aydin U, Lanfer B, Lew S, Lucka F, Ruthotto L, Vorwerk J, Wagner S, Ramon C, Guan C, Ang KK, Chua SG, Kuah WK, Phua KS, Chew E, Zhou H, Chuang KH, Ang BT, Wang C, Zhang H, Yang H, Chin ZY, Yu H, Pan Y, Collins L, Mainsah B, Colwell K, Morton K, Ryan D, Sellers E, Caves K, Throckmorton S, Kübler A, Holz EM, Zickler C, Sellers E, Ryan D, Brown K, Colwell K, Mainsah B, Caves K, Throckmorton S, Collins L, Wennberg R, Ahlfors SP, Grova C, Chowdhury R, Hedrich T, Heers M, Zelmann R, Hall JA, Lina JM, Kobayashi E, Oostendorp T, van Dam P, Oosterhof P, Linnenbank A, Coronel R, van Dessel P, de Bakker J, Rossion B, Jacques C, Witthoft N, Weiner KS, Foster BL, Miller KJ, Hermes D, Parvizi J, Grill-Spector K, Recanzone GH, Murray MM, Haynes JD, Richiardi J, Greicius M, De Lucia M, Müller KR, Formisano E, Smieskova R, Schmidt A, Bendfeldt K, Walter A, Riecher-Rössler A, Borgwardt S, Fusar-Poli P, Eliez S, Schmidt A, Sekihara K, Nagarajan SS, Schoffelen JM, Guggisberg AG, Nolte G, Balazs S, Kermanshahi K, Kiesenhofer W, Binder H, Rattay F, Antal A, Chaieb L, Paulus W, Bodis-Wollner I, Maurer K, Fein G, Camchong J, Johnstone J, Cardenas-Nicolson V, Fiederer LDJ, Lucka F, Yang S, Vorwerk J, Dümpelmann M, Cosandier-Rimélé D, Schulze-Bonhage A, Aertsen A, Speck O, Wolters CH, Ball T, Fuchs M, Wagner M, Kastner J, Tech R, Dinh C, Haueisen J, Baumgarten D, Hämäläinen MS, Lau S, Vogrin SJ, D'Souza W, Haueisen J, Cook MJ, Custo A, Van De Ville D, Vulliemoz S, Grouiller F, Michel CM, Malmivuo J, Aydin U, Vorwerk J, Küpper P, Heers M, Kugel H, Wellmer J, Kellinghaus C, Scherg M, Rampp S, Wolters C, Storti SF, Boscolo Galazzo I, Del Felice A, Pizzini FB, Arcaro C, Formaggio E, Mai R, Manganotti P, Koessler L, Vignal J, Cecchin T, Colnat-Coulbois S, Vespignani H, Ramantani G, Maillard L, Rektor I, Kuba R, Brázdil M, Chrastina J, Rektorova I, van Mierlo P, Carrette E, Strobbe G, Montes-Restrepo V, Vonck K, Vandenberghe S, Ahmed B, Brodely C, Carlson C, Kuzniecky R, Devinsky O, French J, Thesen T, Bénis D, David O, Lachaux JP, Seigneuret E, Krack P, Fraix V, Chabardès S, Bastin J, Jann K, Gee D, Kilroy E, Cannon T, Wang DJ, Hale JR, Mayhew SD, Przezdzik I, Arvanitis TN, Bagshaw AP, Plomp G, Quairiaux C, Astolfi L, Michel CM, Mayhew SD, Mullinger KJ, Bagshaw AP, Bowtell R, Francis ST, Schouten AC, Campfens SF, van der Kooij H, Koles Z, Lind J, Flor-Henry P, Wirth M, Haase CM, Villeneuve S, Vogel J, Jagust WJ, Kambeitz-Ilankovic L, Simon-Vermot L, Gesierich B, Duering M, Ewers M, Rektorova I, Krajcovicova L, Marecek R, Mikl M, Bracht T, Horn H, Strik W, Federspiel A, Schnell S, Höfle O, Stegmayer K, Wiest R, Dierks T, Müller TJ, Walther S, Surmeli T, Ertem A, Eralp E, Kos IH, Skrandies W, Flüggen S, Klein A, Britz J, Díaz Hernàndez L, Ro T, Michel CM, Lenartowicz A, Lau E, Rodriguez C, Cohen MS, Loo SK, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Giannoudas I, La Porta P, Verardo AR, Niolu C, Fernandez I, Siracusano A, Flor-Henry P, Lind J, Koles Z, Bollmann S, Ghisleni C, O'Gorman R, Poil SS, Klaver P, Michels L, Martin E, Ball J, Eich-Höchli D, Brandeis D, Salisbury DF, Murphy TK, Butera CD, Mathalon DH, Fryer SL, Kiehl KA, Calhoun VC, Pearlson GD, Roach BJ, Ford JM, McGlashan TH, Woods SW, Volpe U, Merlotti E, Vignapiano A, Montefusco V, Plescia GM, Gallo O, Romano P, Mucci A, Galderisi S, Mingoia G, Langbein K, Dietzek M, Wagner G, Smesny, Scherpiet S, Maitra R, Gaser C, Sauer H, Nenadic I, Gonzalez Andino S, Grave de Peralta Menendez R, Grave de Peralta Menendez R, Sanchez Vives M, Rebollo B, Gonzalez Andino S, Frølich L, Andersen TS, Mørup M, Belfiore P, Gargiulo P, Ramon C, Vanhatalo S, Cho JH, Vorwerk J, Wolters CH, Knösche TR, Watanabe T, Kawabata Y, Ukegawa D, Kawabata S, Adachi Y, Sekihara K, Sekihara K, Nagarajan SS, Wagner S, Aydin U, Vorwerk J, Herrmann C, Burger M, Wolters C, Lucka F, Aydin U, Vorwerk J, Burger M, Wolters C, Bauer M, Trahms L, Sander T, Faber PL, Lehmann D, Gianotti LRR, Pascual-Marqui RD, Milz P, Kochi K, Kaneko S, Yamashita S, Yana K, Kalogianni K, Vardy AN, Schouten AC, van der Helm FCT, Sorrentino A, Luria G, Aramini R, Hunold A, Funke M, Eichardt R, Haueisen J, Gómez-Aguilar F, Vázquez-Olvera S, Cordova-Fraga T, Castro-López J, Hernández-Gonzalez MA, Solorio-Meza S, Sosa-Aquino M, Bernal-Alvarado JJ, Vargas-Luna M, Vorwerk J, Magyari L, Ludewig J, Oostenveld R, Wolters CH, Vorwerk J, Engwer C, Ludewig J, Wolters C, Sato K, Nishibe T, Furuya M, Yamashiro K, Yana K, Ono T, Puthanmadam Subramaniyam N, Hyttinen J, Lau S, Güllmar D, Flemming L, Haueisen J, Sonntag H, Vorwerk J, Wolters CH, Grasedyck L, Haueisen J, Maeß B, Freitag S, Graichen U, Fiedler P, Strohmeier D, Haueisen J, Stenroos M, Hauk O, Grigutsch M, Felber M, Maess B, Herrmann B, Strobbe G, van Mierlo P, Vandenberghe S, Strobbe G, Cárdenas-Peña D, Montes-Restrepo V, van Mierlo P, Castellanos-Dominguez G, Vandenberghe S, Lanfer B, Paul-Jordanov I, Scherg M, Wolters CH, Ito Y, Sato D, Kamada K, Kobayashi T, Dalal SS, Rampp S, Willomitzer F, Arold O, Fouladi-Movahed S, Häusler G, Stefan H, Ettl S, Zhang S, Zhang Y, Li H, Kong X, Montes-Restrepo V, Strobbe G, van Mierlo P, Vandenberghe S, Wong DDE, Bidet-Caulet A, Knight RT, Crone NE, Dalal SS, Birot G, Spinelli L, Vulliémoz S, Seeck M, Michel CM, Emory H, Wells C, Mizrahi N, Vogrin SJ, Lau S, Cook MJ, Karahanoglu FI, Grouiller F, Caballero-Gaudes C, Seeck M, Vulliemoz S, Van De Ville D, Spinelli L, Megevand P, Genetti M, Schaller K, Michel C, Vulliemoz S, Seeck M, Genetti M, Tyrand R, Grouiller F, Vulliemoz S, Spinelli L, Seeck M, Schaller K, Michel CM, Grouiller F, Heinzer S, Delattre B, Lazeyras F, Spinelli L, Pittau F, Seeck M, Ratib O, Vargas M, Garibotto V, Vulliemoz S, Vogrin SJ, Bailey CA, Kean M, Warren AE, Davidson A, Seal M, Harvey AS, Archer JS, Papadopoulou M, Leite M, van Mierlo P, Vonck K, Boon P, Friston K, Marinazzo D, Ramon C, Holmes M, Koessler L, Rikir E, Gavaret M, Bartolomei F, Vignal JP, Vespignani H, Maillard L, Centeno M, Perani S, Pier K, Lemieux L, Clayden J, Clark C, Pressler R, Cross H, Carmichael DW, Spring A, Bessemer R, Pittman D, Aghakhani Y, Federico P, Pittau F, Grouiller F, Vulliémoz S, Gotman J, Badier JM, Bénar CG, Bartolomei F, Cruto C, Chauvel P, Gavaret M, Brodbeck V, van Leeuwen T, Tagliazzuchi E, Melloni L, Laufs H, Griskova-Bulanova I, Dapsys K, Klein C, Hänggi J, Jäncke L, Ehinger BV, Fischer P, Gert AL, Kaufhold L, Weber F, Marchante Fernandez M, Pipa G, König P, Sekihara K, Hiyama E, Koga R, Iannilli E, Michel CM, Bartmuss AL, Gupta N, Hummel T, Boecker R, Holz N, Buchmann AF, Blomeyer D, Plichta MM, Wolf I, Baumeister S, Meyer-Lindenberg A, Banaschewski T, Brandeis D, Laucht M, Natahara S, Ueno M, Kobayashi T, Kottlow M, Bänninger A, Koenig T, Schwab S, Koenig T, Federspiel A, Dierks T, Jann K, Natsukawa H, Kobayashi T, Tüshaus L, Koenig T, Kottlow M, Achermann P, Wilson RS, Mayhew SD, Assecondi S, Arvanitis TN, Bagshaw AP, Darque A, Rihs TA, Grouiller F, Lazeyras F, Ha-Vinh Leuchter R, Caballero C, Michel CM, Hüppi PS, Hauser TU, Hunt LT, Iannaccone R, Stämpfli P, Brandeis D, Dolan RJ, Walitza S, Brem S, Graichen U, Eichardt R, Fiedler P, Strohmeier D, Freitag S, Zanow F, Haueisen J, Lordier L, Grouiller F, Van de Ville D, Sancho Rossignol A, Cordero I, Lazeyras F, Ansermet F, Hüppi P, Schläpfer A, Rubia K, Brandeis D, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Giannoudas I, Verardo AR, La Porta P, Niolu C, Fernandez I, Siracusano A, Tamura K, Karube C, Mizuba T, Matsufuji M, Takashima S, Iramina K, Assecondi S, Ostwald D, Bagshaw AP, Marecek R, Brazdil M, Lamos M, Slavícek T, Marecek R, Jan J, Meier NM, Perrig W, Koenig T, Minami T, Noritake Y, Nakauchi S, Azuma K, Minami T, Nakauchi S, Rodriguez C, Lenartowicz A, Cohen MS, Rodriguez C, Lenartowicz A, Cohen MS, Iramina K, Kinoshita H, Tamura K, Karube C, Kaneko M, Ide J, Noguchi Y, Cohen MS, Douglas PK, Rodriguez CM, Xia HJ, Zimmerman EM, Konopka CJ, Epstein PS, Konopka LM, Giezendanner S, Fisler M, Soravia L, Andreotti J, Wiest R, Dierks T, Federspiel A, Razavi N, Federspiel A, Dierks T, Hauf M, Jann K, Kamada K, Sato D, Ito Y, Okano K, Mizutani N, Kobayashi T, Thelen A, Murray M, Pastena L, Formaggio E, Storti SF, Faralli F, Melucci M, Gagliardi R, Ricciardi L, Ruffino G, Coito A, Macku P, Tyrand R, Astolfi L, He B, Wiest R, Seeck M, Michel C, Plomp G, Vulliemoz S, Fischmeister FPS, Glaser J, Schöpf V, Bauer H, Beisteiner R, Deligianni F, Centeno M, Carmichael DW, Clayden J, Mingoia G, Langbein K, Dietzek M, Wagner G, Smesny S, Scherpiet S, Maitra R, Gaser C, Sauer H, Nenadic I, Dürschmid S, Zaehle T, Pannek H, Chang HF, Voges J, Rieger J, Knight RT, Heinze HJ, Hinrichs H, Tsatsishvili V, Cong F, Puoliväli T, Alluri V, Toiviainen P, Nandi AK, Brattico E, Ristaniemi T, Grieder M, Crinelli RM, Jann K, Federspiel A, Wirth M, Koenig T, Stein M, Wahlund LO, Dierks T, Atsumori H, Yamaguchi R, Okano Y, Sato H, Funane T, Sakamoto K, Kiguchi M, Tränkner A, Schindler S, Schmidt F, Strauß M, Trampel R, Hegerl U, Turner R, Geyer S, Schönknecht P, Kebets V, van Assche M, Goldstein R, van der Meulen M, Vuilleumier P, Richiardi J, Van De Ville D, Assal F, Wozniak-Kwasniewska A, Szekely D, Harquel S, Bougerol T, David O, Bracht T, Jones DK, Horn H, Müller TJ, Walther S, Sos P, Klirova M, Novak T, Brunovsky M, Horacek J, Bares M, Hoschl C C, Fellhauer I, Zöllner FG, Schröder J, Kong L, Essig M, Schad LR, Arrubla J, Neuner I, Hahn D, Boers F, Shah NJ, Neuner I, Arrubla J, Hahn D, Boers F, Jon Shah N, Suriya Prakash M, Sharma R, Kawaguchi H, Kobayashi T, Fiedler P, Griebel S, Biller S, Fonseca C, Vaz F, Zentner L, Zanow F, Haueisen J, Rochas V, Rihs T, Thut G, Rosenberg N, Landis T, Michel C, Moliadze V, Schmanke T, Lyzhko E, Bassüner S, Freitag C, Siniatchkin M, Thézé R, Guggisberg AG, Nahum L, Schnider A, Meier L, Friedrich H, Jann K, Landis B, Wiest R, Federspiel A, Strik W, Dierks T, Witte M, Kober SE, Neuper C, Wood G, König R, Matysiak A, Kordecki W, Sieluzycki C, Zacharias N, Heil P, Wyss C, Boers F, Arrubla J, Dammers J, Kawohl W, Neuner I, Shah NJ, Braboszcz C, Cahn RB, Levy J, Fernandez M, Delorme A, Rosas-Martinez L, Milne E, Zheng Y, Urakami Y, Kawamura K, Washizawa Y, Hiyoshi K, Cichocki A, Giroud N, Dellwo V, Meyer M, Rufener KS, Liem F, Dellwo V, Meyer M, Jones-Rounds JD, Raizada R, Staljanssens W, Strobbe G, van Mierlo P, Van Holen R, Vandenberghe S, Pefkou M, Becker R, Michel C, Hervais-Adelman A, He W, Brock J, Johnson B, Ohla K, Hitz K, Heekeren K, Obermann C, Huber T, Juckel G, Kawohl W, Gabriel D, Comte A, Henriques J, Magnin E, Grigoryeva L, Ortega JP, Haffen E, Moulin T, Pazart L, Aubry R, Kukleta M, Baris Turak B, Louvel J, Crespo-Garcia M, Cantero JL, Atienza M, Connell S, Kilborn K, Damborská A, Brázdil M, Rektor I, Kukleta M, Koberda JL, Bienkiewicz A, Koberda I, Koberda P, Moses A, Tomescu M, Rihs T, Britz J, Custo A, Grouiller F, Schneider M, Debbané M, Eliez S, Michel C, Wang GY, Kydd R, Wouldes TA, Jensen M, Russell BR, Dissanayaka N, Au T, Angwin A, O'Sullivan J, Byrne G, Silburn P, Marsh R, Mellic G, Copland D, Bänninger A, Kottlow M, Díaz Hernàndez L, Koenig T, Díaz Hernàndez L, Bänninger A, Koenig T, Hauser TU, Iannaccone R, Mathys C, Ball J, Drechsler R, Brandeis D, Walitza S, Brem S, Boeijinga PH, Pang EW, Valica T, Macdonald MJ, Oh A, Lerch JP, Anagnostou E, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Verardo AR, Giannoudas I, La Porta P, Niolu C, Fernandez I, Siracusano A, Shimada T, Matsuda Y, Monkawa A, Monkawa T, Hashimoto R, Watanabe K, Kawasaki Y, Matsuda Y, Shimada T, Monkawa T, Monkawa A, Watanabe K, Kawasaki Y, Stegmayer K, Horn H, Federspiel A, Razavi N, Bracht T, Laimböck K, Strik W, Dierks T, Wiest R, Müller TJ, Walther S, Koorenhof LJ, Swithenby SJ, Martins-Mourao A, Rihs TA, Tomescu M, Song KW, Custo A, Knebel JF, Murray M, Eliez S, Michel CM, Volpe U, Merlotti E, Vignapiano A, Montefusco V, Plescia GM, Gallo O, Romano P, Mucci A, Galderisi S, Laimboeck K, Jann K, Walther S, Federspiel A, Wiest R, Strik W, Horn H. Abstracts of Presentations at the International Conference on Basic and Clinical Multimodal Imaging (BaCI), a Joint Conference of the International Society for Neuroimaging in Psychiatry (ISNIP), the International Society for Functional Source Imaging (ISFSI), the International Society for Bioelectromagnetism (ISBEM), the International Society for Brain Electromagnetic Topography (ISBET), and the EEG and Clinical Neuroscience Society (ECNS), in Geneva, Switzerland, September 5-8, 2013. Clin EEG Neurosci 2013; 44:1550059413507209. [PMID: 24368763 DOI: 10.1177/1550059413507209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- B J He
- National Institutes of Health, Bethesda, MD, USA
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Bonnet L, Magnin E, Comte A, Rumbach L. Hemifacial spasm revealing contralateral peripheral facial palsy. Rev Neurol (Paris) 2013; 169:1015-6. [PMID: 24120245 DOI: 10.1016/j.neurol.2013.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 12/10/2012] [Accepted: 02/27/2013] [Indexed: 10/26/2022]
Affiliation(s)
- L Bonnet
- Department of Neurology, J. Minjoz University Hospital, 3, boulevard Alexandre-Fleming, 25030 Besançon cedex, France.
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Rosikiewicz M, Comte A, Niknejad A, Robinson-Rechavi M, Bastian FB. Uncovering hidden duplicated content in public transcriptomics data. Database (Oxford) 2013; 2013:bat010. [PMID: 23487185 PMCID: PMC3595988 DOI: 10.1093/database/bat010] [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] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
As part of the development of the database Bgee (a dataBase for Gene Expression Evolution), we annotate and analyse expression data from different types and different sources, notably Affymetrix data from GEO and ArrayExpress, and RNA-Seq data from SRA. During our quality control procedure, we have identified duplicated content in GEO and ArrayExpress, affecting ∼14% of our data: fully or partially duplicated experiments from independent data submissions, Affymetrix chips reused in several experiments, or reused within an experiment. We present here the procedure that we have established to filter such duplicates from Affymetrix data, and our procedure to identify future potential duplicates in RNA-Seq data. Database URL:http://bgee.unil.ch/
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Affiliation(s)
- Marta Rosikiewicz
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
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19
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Elaidi R, Teghom C, Comte A, Jebali M, Fouque J, Medioni J, Oudard S. Predictive Value of Time to Best Response for Efficacy MTOR Inhibitors (MTORI) in Metastatic Renal Cell Carcinoma (MRCC) Patients (PTS). Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33424-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Comte A, Magnin E, Pazart L, Tatu L, Millot JL, Moulin T, Biondi A. Intégration odeur/goût dans la dégustation d’un vin par des experts : une étude en IRMF. J Neuroradiol 2012. [DOI: 10.1016/j.neurad.2012.01.050] [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: 10/28/2022]
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Billon-Grand C, Billon-Grand R, Hague S, Comte A, Andrieu P, Cattin F, Moulin T, Biondi A. Étude en IRM fonctionnelle des structures corticales impliques en l’attention de l’espace. J Neuroradiol 2012. [DOI: 10.1016/j.neurad.2012.01.019] [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: 10/28/2022]
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Abstract
MOTIVATION Most anatomical ontologies are species-specific, whereas a framework for comparative studies is needed. We describe the vertebrate Homologous Organs Groups ontology, vHOG, used to compare expression patterns between species. RESULTS vHOG is a multispecies anatomical ontology for the vertebrate lineage. It is based on the HOGs used in the Bgee database of gene expression evolution. vHOG version 1.4 includes 1184 terms, follows OBO principles and is based on the Common Anatomy Reference Ontology (CARO). vHOG only describes structures with historical homology relations between model vertebrate species. The mapping to species-specific anatomical ontologies is provided as a separate file, so that no homology hypothesis is stated within the ontology itself. Each mapping has been manually reviewed, and we provide support codes and references when available. AVAILABILITY AND IMPLEMENTATION vHOG is available from the Bgee download site (http://bgee.unil.ch/), as well as from the OBO Foundry and the NCBO Bioportal websites. CONTACT bgee@isb-sib.ch; frederic.bastian@unil.ch.
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Affiliation(s)
- Anne Niknejad
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
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Sikora KM, Magee DA, Berkowicz EW, Lonergan P, Evans ACO, Carter F, Comte A, Waters SM, MacHugh DE, Spillane C. PHLDA2 is an imprinted gene in cattle. Anim Genet 2011; 43:587-90. [PMID: 22497461 DOI: 10.1111/j.1365-2052.2011.02292.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Genomic imprinting is an epigenetic non-Mendelian phenomenon found predominantly in placental mammals. Imprinted genes display differential expression in the offspring depending on whether the gene is maternally or paternally inherited. Currently, some 100 imprinted genes have been reported in mammals, and while some of these genes are imprinted across most mammalian species, others have been shown to be imprinted in only a few species. The PHLDA2 gene that codes for a pleckstrin homology-like domain, family A (member 2), protein has to date been shown to be a maternally expressed imprinted gene in humans, mice and pigs. Genes subject to imprinting can have major effects on mammalian growth, development and disease. For instance, disruption of imprinted genes can lead to aberrant growth syndromes in cloned domestic mammals, and it has been demonstrated that PHLDA2 mRNA expression levels are aberrant in the placenta of somatic clones of cattle. In this study, we demonstrate that PHLDA2 is expressed across a range of cattle foetal tissues and stages and provide the first evidence that PHLDA2 is a monoallelically expressed imprinted gene in cattle foetal tissues, and also in the bovine placenta.
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Affiliation(s)
- K M Sikora
- Genetics and Biotechnology Laboratory, Department of Biochemistry, University College Cork, Cork, Ireland
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McKeown PC, Laouielle-Duprat S, Prins P, Wolff P, Schmid MW, Donoghue MTA, Fort A, Duszynska D, Comte A, Lao NT, Wennblom TJ, Smant G, Köhler C, Grossniklaus U, Spillane C. Identification of imprinted genes subject to parent-of-origin specific expression in Arabidopsis thaliana seeds. BMC Plant Biol 2011; 11:113. [PMID: 21838868 PMCID: PMC3174879 DOI: 10.1186/1471-2229-11-113] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Accepted: 08/12/2011] [Indexed: 05/02/2023]
Abstract
BACKGROUND Epigenetic regulation of gene dosage by genomic imprinting of some autosomal genes facilitates normal reproductive development in both mammals and flowering plants. While many imprinted genes have been identified and intensively studied in mammals, smaller numbers have been characterized in flowering plants, mostly in Arabidopsis thaliana. Identification of additional imprinted loci in flowering plants by genome-wide screening for parent-of-origin specific uniparental expression in seed tissues will facilitate our understanding of the origins and functions of imprinted genes in flowering plants. RESULTS cDNA-AFLP can detect allele-specific expression that is parent-of-origin dependent for expressed genes in which restriction site polymorphisms exist in the transcripts derived from each allele. Using a genome-wide cDNA-AFLP screen surveying allele-specific expression of 4500 transcript-derived fragments, we report the identification of 52 maternally expressed genes (MEGs) displaying parent-of-origin dependent expression patterns in Arabidopsis siliques containing F1 hybrid seeds (3, 4 and 5 days after pollination). We identified these MEGs by developing a bioinformatics tool (GenFrag) which can directly determine the identities of transcript-derived fragments from (i) their size and (ii) which selective nucleotides were added to the primers used to generate them. Hence, GenFrag facilitates increased throughput for genome-wide cDNA-AFLP fragment analyses. The 52 MEGs we identified were further filtered for high expression levels in the endosperm relative to the seed coat to identify the candidate genes most likely representing novel imprinted genes expressed in the endosperm of Arabidopsis thaliana. Expression in seed tissues of the three top-ranked candidate genes, ATCDC48, PDE120 and MS5-like, was confirmed by Laser-Capture Microdissection and qRT-PCR analysis. Maternal-specific expression of these genes in Arabidopsis thaliana F1 seeds was confirmed via allele-specific transcript analysis across a range of different accessions. Differentially methylated regions were identified adjacent to ATCDC48 and PDE120, which may represent candidate imprinting control regions. Finally, we demonstrate that expression levels of these three genes in vegetative tissues are MET1-dependent, while their uniparental maternal expression in the seed is not dependent on MET1. CONCLUSIONS Using a cDNA-AFLP transcriptome profiling approach, we have identified three genes, ATCDC48, PDE120 and MS5-like which represent novel maternally expressed imprinted genes in the Arabidopsis thaliana seed. The extent of overlap between our cDNA-AFLP screen for maternally expressed imprinted genes, and other screens for imprinted and endosperm-expressed genes is discussed.
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Affiliation(s)
- Peter C McKeown
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
| | - Sylvia Laouielle-Duprat
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
| | - Pjotr Prins
- Laboratory of Nematology, Wageningen University, Droevendaalsesteeg 1, Wageningen, The Netherlands
| | - Philip Wolff
- Department of Biology and Zürich-Basel Plant Science Center, Swiss Federal Institute of Technology, ETH Centre, CH-8092 Zürich, Switzerland
- Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden
| | - Marc W Schmid
- Institute of Plant Biology and Zürich-Basel Plant Science Center, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland
| | - Mark TA Donoghue
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
| | - Antoine Fort
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
| | - Dorota Duszynska
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
| | - Aurélie Comte
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
| | - Nga Thi Lao
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
| | | | - Geert Smant
- Laboratory of Nematology, Wageningen University, Droevendaalsesteeg 1, Wageningen, The Netherlands
| | - Claudia Köhler
- Department of Biology and Zürich-Basel Plant Science Center, Swiss Federal Institute of Technology, ETH Centre, CH-8092 Zürich, Switzerland
- Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden
| | - Ueli Grossniklaus
- Institute of Plant Biology and Zürich-Basel Plant Science Center, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland
| | - Charles Spillane
- Genetics and Biotechnology Lab, Botany and Plant Science, National University of Ireland Galway (NUIG), C306 Aras de Brun, University Road, Galway, Ireland
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Cohen C, Ranque B, Comte A, Passeron A, Pouchot J, Capron L. Encéphalopathie de Gayet Wernicke secondaire à une nutrition parentérale. Rev Med Interne 2011. [DOI: 10.1016/j.revmed.2011.03.221] [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: 10/28/2022]
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Billot PE, Comte A, Galliot E, Andrieu P, Bonnans V, Tatu L, Gharbi T, Moulin T, Millot JL. Time course of odorant- and trigeminal-induced activation in the human brain: an event-related functional magnetic resonance imaging study. Neuroscience 2011; 189:370-6. [PMID: 21620934 DOI: 10.1016/j.neuroscience.2011.05.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 05/10/2011] [Accepted: 05/13/2011] [Indexed: 10/18/2022]
Abstract
It is well known that most odorants stimulate the trigeminal system but the time course of the brain regions activated by these chemical stimulations remains poorly documented, especially regarding the trigeminal system. This functional magnetic resonance imaging (fMRI) study compares brain activations resulting from the contrast between two odorant conditions (one bimodal odor and one relatively pure olfactory stimulant) according to the duration of the stimulation (i.e. one inhalation, or three or six successive inhalations). The results show striking differences in the main brain regions activated according to these durations. The caudate nucleus and the orbitofrontal cortex are only involved in short-duration stimulations, and the posterior insular cortex and post-central gyrus (SI) are only activated by long duration stimulations. Different regions of the frontal, temporal and occipital lobe are activated depending on the duration but mainly during medium-duration stimulations. These results expand on the findings of previous studies and contribute to the description of temporal networks in trigeminal perception.
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Affiliation(s)
- P-E Billot
- Laboratoire de Neurosciences Intégratives et Cliniques, Université de Franche-Comté, 2 Place Leclerc, 25030 Besançon Cedex, France
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Abstract
During development vertebrate embryos pass through a stage where their morphology is most conserved between species, the phylotypic period (approximately the pharyngula). To explain the resistance to evolutionary changes of this period, one hypothesis suggests that it is characterized by a high level of interactions. Based on this hypothesis, we examined protein–protein interactions, signal transduction cascades and miRNAs over the course of zebrafish development, and the conservation of expression of these genes in mouse development. We also investigated the characteristics of genes highly expressed before or during the presumed phylotypic period. We show that while there is a high diversity of interactions during the phylotypic period (protein–DNA, RNA–RNA, cell–cell, and between tissues), which is well conserved with mouse, there is no clear difference with later, more morphologically divergent, stages. We propose that the phylotypic period may rather be the expression at the morphological level of strong conservation of molecular processes earlier in development.
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Affiliation(s)
- Aurélie Comte
- Department of Ecology and Evolution, Biophore, Lausanne University, Lausanne, Switzerland
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Comte A, Ursulescu N, Taghian M, Carbonnel F, Jantchou P. P045 - Épidémiologie des MICI en Franche-Comté : de 2000 à 2010. Arch Pediatr 2010. [DOI: 10.1016/s0929-693x(10)70446-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Guétat P, Moulin V, Reiller PE, Vercouter T, Bion L, Fritsch P, Monfort M, Flüry-Herard A, Comte A, Menetrier F, Ansoborlo E, et al.. Plutonium in the environment: key factors related to impact assessment in case of an accidental atmospheric release. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2009.1607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
This paper deals with plutonium and key factors related to impact assessment. It is based on recent work performed by CEA which summarize the main features of plutonium behaviour from sources inside installations to the environment and man, and to report current knowledge on the different parameters used in models for environmental and radiological impact assessment. These key factors are illustrated through a case study based on an accidental atmospheric release of Pu in a nuclear facility.
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Affiliation(s)
| | - Valérie Moulin
- CEA Saclay - DEN / DDIN, Gif sur Yvette Cedex, Frankreich
| | - Pascal E. Reiller
- Commissariat à lEnergie Atomique,, CE Saclay, Nuclear Energy, Gif-sur-Yvette CEDEX, Frankreich
| | | | - Lionel Bion
- CEA Saclay/DEN/DPC/SECR/LSRM, Laboratoty of Radionuclides and Molecules Speciati, Gif sur Yvette Cedex, Frankreich
| | | | | | | | - A. Comte
- CEA FAR, Fontenay-aux roses, Frankreich
| | | | - Eric Ansoborlo
- CEA Marcoule - DEN / DRCP / CETAMA, Bagnols sur Cèze, Frankreich
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Ménétrier F, Taylor D, Comte A. The biokinetics and radiotoxicology of curium: A comparison with americium. Appl Radiat Isot 2008; 66:632-47. [DOI: 10.1016/j.apradiso.2007.12.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2007] [Revised: 11/12/2007] [Accepted: 12/11/2007] [Indexed: 10/22/2022]
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31
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Catalano-Pons C, Comte A, Wipff J, Quartier P, Faye A, Gendrel D, Duquesne A, Cimaz R, Job-Deslandre C. Clinical outcome in children with chronic recurrent multifocal osteomyelitis. Rheumatology (Oxford) 2008; 47:1397-9. [DOI: 10.1093/rheumatology/ken249] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Ansoborlo E, Santucci C, Grouiller JP, Boucher L, Flüry-Herard A, Menetrier F, Comte A, Cook E, Moulin V. Development of a database: DACTARI for a radiotoxic element ranking methodology. Radiat Prot Dosimetry 2007; 127:526-30. [PMID: 17578873 DOI: 10.1093/rpd/ncm305] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Dosimetric impact studies aim at evaluating potential radiological effects of chronic or acute releases from nuclear facilities. A methodology for ranking radionuclides (RN) in terms of their health-related impact on the human population was first developed at CEA with specific criteria for each RN that could be applied to a variety of situations. It is based, in particular, on applying physico-chemical criteria to the complete RN inventory (present in the release or in the source term) and on applying norms related to radiation protection and chemical toxicology. The initial step consisted in identifying and collecting data necessary to apply the methodology, with reference to a previous database of long-lived radionuclides (LLRN, with half-lives ranging from 30 to 10(14) y) containing 95 radionuclides. The initial results have allowed us to identify missing data and revealed the need to complete the study for both toxic and radiotoxic aspects. This led us to the next step, developing a specific database, DAtabase for Chemical Toxicity and Radiotoxicity Assessment of RadIonuclides (DACTARI), to collect data on chemical toxicity and radiotoxicity, including acute or chronic toxicity, the chemical form of the compounds, the contamination route (ingestion, inhalation), lethal doses, target organs, intestinal and maternal-foetal transfer, drinking water guidelines and the mutagenic and carcinogenic properties.
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Affiliation(s)
- E Ansoborlo
- CEA/DEN/DRCP/CETAMA, VRH-Marcoule, BP 17171, 30207 Bagnol-sur-Cèze, France.
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Lalande A, Salvé N, Comte A, Jaulent MC, Legrand L, Walker PM, Cottin Y, Wolf JE, Brunotte F. Left ventricular ejection fraction calculation from automatically selected and processed diastolic and systolic frames in short-axis cine-MRI. J Cardiovasc Magn Reson 2006; 6:817-27. [PMID: 15646885 DOI: 10.1081/jcmr-200036143] [Citation(s) in RCA: 13] [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] [Indexed: 11/03/2022] Open
Abstract
The calculation of the left ventricular ejection fraction (LVEF) is dependent upon the accurate measurement of diastolic and systolic left ventricular volumes. Although breath-hold cine magnetic resonance imaging (MRI) allows coverage of the whole cardiac cycle with an excellent time resolution, many authors rely on the visual selection of diastolic and the systolic short-axis slices in order to reduce the postprocessing time. An automatic method was developed to detect the endocardial contour on each image, allowing an automatic selection of the systolic frame. The calculated ejection fraction was compared with radionuclide ventriculography (RNV). Sixty-five patients were examined using an electrocardiogram (ECG)-gated gradient echo sequence. Among these examinations, manual and automatic processing with MRI were compared when the time of the systolic frame concorded. Good correlations have been found between the automatic MRI approach and RNV, and between manual and automatic processing on MRI alone. The results show that the automatic determination of the ejection fraction is feasible, and should constitute an important step toward a larger acceptance of MRI as a routine tool in heart disease imaging. One major benefit of using automatic postprocessing is that it may eliminate the visual choice of the systolic frame, inaccurate in more than 50% of the studied patients.
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Affiliation(s)
- Alain Lalande
- Laboratoire de Biophysique, Faculté de Médecine, Université de Bourgogne, Dijon Cedex, France.
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34
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Cochet A, Cottin Y, Comte A, Zeller M, Lalande A, Touzery C, Walker PM, Voguet S, L'Huillier I, Wolf JE, Brunotte F. [Role of visual analysis of first-pass contrast-enhanced MRI in reperfused myocardial infarction]. Arch Mal Coeur Vaiss 2005; 98:1199-205. [PMID: 16435598] [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: 05/06/2023]
Abstract
The aim of this work is to evaluate the relationship between improvement of regional myocardial function and visual analysis of contrast-enhanced (CE) MRI in patients after acute myocardial infarction. MRI was performed on 19 patients 1 and 11 weeks after a reperfused acute myocardial infarction. Perfusion data (first-pass images [FPI] and delayed CE images) were acquired after an intravenous bolus of gadolinium-DTPA and visually analyzed using a 17 segment model. Each segment was then classified in 3 groups, according to the presence or absence of FPI and CE patterns at baseline study: group 0: normal-appearing segments; group 1: segments with delayed hyper-enhancement but no early hypo-enhancement; group 2: segments with early hypoenhancement. Relative Wall thickening (RWT) was analyzed in each segment and its improvement evaluated in each group. Between first MRI and follow-up study, a significant improvement of RWT occurred in group 1 (mean +/- SD) [from 43.43 +/- 26.59% to 76.71 +/- 47.38%; p = 0.001] but not in group 2 (from 32.73 +/- 25.58% to 39.57 +/- 30.57%; p = NS). In group 0, RWT despite normal value at baseline study exhibited a significant improvement at follow-up (from 65.23 +/- 46.52% to 79.73 +/- 48.46%; p = 0.0015). In conclusion, the combined analysis of early and delayed perfusion abnormalities in MRI in the week following myocardial infarction can predict myocardial viability and allows in the future an evaluation of the efficacy of perfusion therapy.
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Affiliation(s)
- A Cochet
- Unité d'IRM, CHU Bocage, bd Mal de Lattre de Tassigny, 21034 Dijon.
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35
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Robert-Valla C, Boichot C, Zeller M, Touzery C, Lalande A, Comte A, Walker PM, Brunotte F, Cottin Y, Wolf JE. [Magnetic resonance imaging early after acute myocardial infarction. A visual analysis of myocardial perfusion based on a 17 segment model]. Ann Cardiol Angeiol (Paris) 2003; 52:7-14. [PMID: 12710289 DOI: 10.1016/s0003-3928(02)00184-1] [Citation(s) in RCA: 4] [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] [Indexed: 11/21/2022]
Abstract
Magnetic resonance imaging allows an accurate calculation of the left ventricular ejection fraction and left ventricular volumes. Additionally, it makes possible to assess myocardial perfusion after gadolinium chelate injection. Late after the injection, the presence of a myocardial hyper-enhancement can be visualized. The present study has used the 17 segment standardized nomenclature for tomographic imaging of the heart as recommended for all cardiac imaging modalities. Sixty nine patients were studied after a revascularised myocardial infarction. All patients had Timi grade 3 flow in the infarct-related artery after therapy. Regional and global function was studied using cine MR short axis slices. The gadolinium chelate first pass was scored using a 5 level scale reflecting the transmural extent of the segmental myocardial enhancement. The delayed enhancement due to gadolinium accumulation in the myocardium 10 min post injection was scored in the same manner. Left ventricular ejection fraction was 51 +/- 13%. Segmental thickening parameters (systolic thickness, absolute thickening and relative thickening) appeared statistically related to the hypoperfusion and delayed enhancement scores. Absolute myocardial thickening varied from 4.8 +/- 2.7 mm in the myocardial segments free of any delayed enhancement to 2.4 +/- 2.1 mm in segments presenting with a transmural extent of the delayed hyper-enhancement. Scores obtained after gadolinium injection were also well correlated with the global left ventricular function (r = 0.65, p < 0.01 for late enhancement). Magnetic resonance imaging of the heart allows a precise characterisation of revascularised myocardium which makes this technique very attractive for evaluating the treatments designed to improve myocardial microperfusion.
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Affiliation(s)
- C Robert-Valla
- Unité d'IRM, centre hospitalier universitaire de Dijon, hôpital d'enfants, boulevard Maréchal-de-Lattre-de-Tassigny, 21034 Dijon, France
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36
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Rezaizadeh-Bourdariat K, Lalande A, Ben Salem D, Comte A, Salvé N, Aho S, Walker PM, Brunotte F, Cottin Y, Wolf JE. [Early study of myocardial perfusion with MRI in revascularized infarcts]. Arch Mal Coeur Vaiss 2003; 96:30-4. [PMID: 12613147] [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: 03/01/2023]
Abstract
The aim of this work is to study the regional myocardial perfusion by MRI early after revascularised myocardial infarction and to compare it with regional function. This prospective work has included 15 patients with acute first myocardial infarction that was precociously revascularised. A myocardial MRI was performed between D2 and D10 after myocardial infarction. The regional myocardial thickening was evaluated from cine-MRI sequences. For the study of myocardial perfusion, the first pass of the contrast agent was analysed from curves of the signal evolution versus time. The signal enhancement on late images acquired 10 minutes after the perfusion of the contrast agent was also evaluated. Among 384 studied myocardial segments, those with a normal gadolinium first pass curve had a relative thickening of 46 +/- 38%. The segments with a severely reduced first pass kinetic have a markedly reduced relative thickening (14 +/- 20%) in relation with myocardial hypoperfusion. The myocardial enhancement is frequently seen in the infarct territory and appears related to a reduced regional contractility. The myocardium is enhanced on late images in 12% of the normally perfused segments. These segments have a mildly reduced wall thickening (3.36 +/- 2.84 mm vs 4.42 +/- 2.83 mm). The segmental contractility in a reperfused myocardial infarction appears to depend both on the myocardial perfusion which reflects the microvascularisation and on the myocardial enhancement which is linked to myocardial structural alterations. MRI appears to be an adequate method to evaluate these abnormalities and allows an easy assessment of the no-reflow phenomenon, if present.
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Abstract
Investigations of enzymatic reactions in supercritical CO(2) are often hindered by the high pressure involved in these processes, making reaction monitoring extremely difficult. This paper describes the implementation of a fiber optic based oxygen sensor into a high pressure reactor for supercritical carbon dioxide. The sensor is pressure resistant, working in supercritical carbon dioxide and reusable after depressurisation. The sensor signal is found to be affected by pressure changes, but stable at constant pressure. Oxygen concentration in supercritical CO(2) is monitored using the disproportionation of hydrogen peroxide as a simple oxygen producing reaction.
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Affiliation(s)
- M Tservistas
- Institut fuür Technische Chemie, Universitaät Hannover, Callinstr. 3, 30167, Hannover, Germany
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David-Dufilho M, Astarie C, Pernollet MG, Bergougnan L, Comte A, Dubray C, Devynck MA. Modulation by external Ca2+ and nicardipine of Ca2+ influx and cytosolic concentration in human erythrocytes. Biochem Biophys Res Commun 1990; 173:954-60. [PMID: 2176496 DOI: 10.1016/s0006-291x(05)80878-2] [Citation(s) in RCA: 7] [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] [Indexed: 12/30/2022]
Abstract
Variations of Ca2+ influx (evaluated by the initial rate of 45Ca2+ uptake) and cytosolic free Ca2+ concentration ([Ca2+]i, measured with fura-2) were investigated in human erythrocytes. When external Ca2+ concentration ([Ca2+]o) rose from 1 to 2 mM, the initial rate of Ca2+ influx nearly doubled whereas [Ca2+]i increased only by 15%. Nicardipine dose-dependently decreased both initial rate of Ca2+ influx and [Ca2+]i (up to 53 and 18%. respectively at 10(-6) M). The less marked changes in [Ca2+]i than in Ca2+ influx indicate a partial adjustment of the Ca2+ extruding-pump activity to of Ca2+ influx. In vivo administration of nicardipine reduced [Ca2+]i only when its initial value exceeded 80 nM and prevented the rise in [Ca2+]i induced by the increase in [Ca2+]o. Our results indicate that nicardipine may reduce Ca2+ influx in human erythrocytes and participate in the control of [Ca2+]i when elevated.
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Affiliation(s)
- M David-Dufilho
- Department of Pharmacology, CNRS 161670. Necker Medical School, Paris, France
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Astarie C, David-Dufilho M, Pernollet M, Comte A, Dubray C, Devynek M. Nicardipine treatments modulate [Ca2+]i and 45Ca2+ uptake by Intact human erythrocytes. Eur J Pharmacol 1990. [DOI: 10.1016/0014-2999(90)91953-9] [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: 12/01/2022]
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Pinquier JL, Urien S, Chaumet-Riffaud P, Comte A, Tillement JP. Binding of [3H]isradipine (PN 200-110) on smooth muscle cell membranes from different bovine arteries. J Cardiovasc Pharmacol 1988; 11:402-6. [PMID: 2453742 DOI: 10.1097/00005344-198804000-00004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The binding of [3H]isradipine [( 3H]PN 200-110), a new dihydropyridine (DHP) calcium blocker on smooth muscle cell (SMC) membranes from different bovine arteries was saturable with comparable high affinities but different binding site densities (Bmax). The data were fitted to a model that provided a common estimation for the dissociation constant (Kd = 0.46 nM, SD = 0.03) but different Bmax values. Two groups of arteries could be distinguished, large-sized with high Bmax (aorta, 149 fmol/mg, SD = 4; intrapulmonary, 134 fmol/mg, SD = 4) and medium-sized with lower Bmax (mesenteric, 67 fmol/mg, SD = 2; internal carotid, 50 fmol/mg, SD = 2; renal artery, 29 fmol/mg, SD = 2). The Kd values were similar to those previously reported, but the Bmax value on aorta SMC was higher than usually reported with other DHPs, showing that isradipine was a high full antagonist of calcium channel. Our results also suggest that the increase in arterial compliance induced by DHPs will probably be more important on large-sized arteries than on medium-sized arteries because of higher DHP binding.
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Affiliation(s)
- J L Pinquier
- Département de Pharmacologie, Faculté de Médecine, Université Paris XII, Créteil, France
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Bression D, Chaumet-Riffaud P, Brandi AM, Comte A, Peillon F, Kiechel JR. Binding of (+)-PN 200-110 to rat pituitaries and to normal and adenomatous human pituitaries. Mol Cell Endocrinol 1987; 50:255-61. [PMID: 3032711 DOI: 10.1016/0303-7207(87)90024-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Endocrine cells possess voltage-sensitive Ca2+ channels involved in the modulation of hormonal secretion. Using the dihydropyridine, (+)-PN 200-110, we have investigated the binding characteristics of this ligand to pituitary membrane Ca2+ channels from normal rat, normal and adenomatous human pituitaries. [3H]PN 200-110 binds specifically to rat pituitary membranes to one class of sites (Kd = 0.41 +/- 0.10 mM; Bmax = 39 +/- 1.3 fmol/mg protein). At 37 degrees C, equilibrium is reached in 45 min and half-life of the binding is 13 min. No significant changes were observed for either the Kd or Bmax values between normal rat and human pituitaries or between the different types of adenomas (GH- and PRL-secreting and non-secreting). As the secretory activity of the pituitary adenomas, involving Ca2+ mobilization, varies from one adenoma to another, our results could indicate that, if there is a modified regulation of Ca2+ entry in the adenomas, it may not be related to a varying number of calcium channels, at least the channels labeled by the dihydropyridine (+)-PN 200-110.
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