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Rossignol J, Ouimet T, Poras H, Dallel R, Luccarini P. Synergistic effect of combining dual enkephalinase inhibitor PL37 and sumatriptan in a preclinical model of migraine. Headache 2024; 64:243-252. [PMID: 38385629 DOI: 10.1111/head.14681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/19/2024] [Accepted: 01/25/2024] [Indexed: 02/23/2024]
Abstract
OBJECTIVE The aim of this study was to test whether a combination of sumatriptan with dual enkephalinase inhibitor PL37 would result in an additive or a synergistic effect. BACKGROUND Combination treatment is frequently used to improve the therapeutic efficacy of drugs. The co-administration of two drugs may result in efficacy at lower doses than those needed for either drug alone, thus minimizing side effects. Here, we tested the effect of the co-administration of two drugs on cutaneous mechanical hypersensitivity (MH), a symptom often affecting cephalic regions in patients with migraine: dual enkephalinase inhibitor PL37, a small molecule that protects enkephalins from rapid degradation, and sumatriptan, a serotonin 5-HT1B/1D receptor agonist. METHODS We investigated the effects of oral administrations of sumatriptan, PL37, or their combination on changes in cutaneous mechanical sensitivity induced by a single intraperitoneal administration of the nitric oxide donor, isosorbide dinitrate (ISDN) in male rats. Mechanical sensitivity was assessed using von Frey filaments applied to the face of animals to determine pain thresholds. Isobolographic analysis was performed to determine the nature of the interaction between sumatriptan and PL37. RESULTS Sumatriptan as well as PL37 each produced a dose-dependent inhibition of ISDN-induced cephalic MH. Median effective dose (ED50 ) values were 0.3 and 1.1 mg/kg for sumatriptan and PL37, respectively. An isobolographic analysis of the effect of combined doses of sumatriptan and PL37 based on their calculated ED50 values demonstrated a synergistic effect of the combination on cephalic MH, with an interaction index of 0.14 ± 0.04. CONCLUSION These results suggest that PL37 acts synergistically with sumatriptan to produce an anti-allodynic effect in a rat model of migraine. Thus, combining PL37 and sumatriptan may be a useful therapeutic strategy in the management of migraine. PLAIN LANGUAGE SUMMARY There have been many advances in migraine treatment, but we still need more options that are effective and have few side effects. Sumatriptan is one available drug for acute treatment of migraine, but it does not work for every patient and is not suitable for some people. We tested a new drug called PL37 (that blocks enkephalinases) together with sumatriptan and the combination minimized side effects and allowed lower doses of the drugs for effective migraine treatment in an animal model.
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Affiliation(s)
- Jeanne Rossignol
- Neuro-Dol, Inserm, CHU Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
- R & D Department, Pharmaleads SA, Paris, France
| | | | - Hervé Poras
- R & D Department, Pharmaleads SA, Paris, France
| | - Radhouane Dallel
- Neuro-Dol, Inserm, CHU Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Philippe Luccarini
- Neuro-Dol, Inserm, CHU Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
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Rossignol J, Bélanger G, Gaudreault D, Therrien AC, Bérubé-Lauziére Y, Fontaine R. Time-of-flight scatter rejection in x-ray radiography. Phys Med Biol 2024; 69:055027. [PMID: 38232398 DOI: 10.1088/1361-6560/ad1f85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/17/2024] [Indexed: 01/19/2024]
Abstract
Objective.Time-of-flight (TOF) scatter rejection allows for identifying and discarding scattered photons without the use of an anti-scatter grid (ASG). Although TOF scatter rejection was initially presented for cone-beam computed tomography, we propose, herein, to extend this approach to x-ray radiography. This work aims to evaluate with simulations if TOF scatter rejection can outperform ASGs for radiography.Approach.GATE was used to simulate the radiography of a head and a torso and a water cylinder with bone inserts in a system with total timing jitters from 0 ps up to 500 ps full-width-at-half-maximum. The transmission factor of TOF scatter rejection for primary and scattered photons was evaluated as if it were a virtual ASG.Main results.With a total timing jitter of 50 ps, TOF scatter rejection can reach a selectivity of 4.93 with a primary photons transmission of 99%. Reducing the timing jitter close to 0 ps increases the selectivity up to 15.85 for a head and torso radiography, outperforming typical ASGs which usually have a selectivity from 2.5 to 10 with a primary photons transmission from 50% to 70%.Significance.This suggests that TOF scatter rejection may be suitable to replace ASGs in applications requiring lower radiation exposure if sufficiently low timing jitter is achieved.
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Affiliation(s)
- J Rossignol
- Institut Interdisciplinaire d'Innovation Technologique (3IT), Université de Sherbrooke, Sherbrooke, Québec, Canada
- Département de Génie Électrique et Génie Informatique, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - G Bélanger
- Institut Interdisciplinaire d'Innovation Technologique (3IT), Université de Sherbrooke, Sherbrooke, Québec, Canada
- Département de Génie Électrique et Génie Informatique, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - D Gaudreault
- Institut Interdisciplinaire d'Innovation Technologique (3IT), Université de Sherbrooke, Sherbrooke, Québec, Canada
- Département de Génie Électrique et Génie Informatique, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - A C Therrien
- Institut Interdisciplinaire d'Innovation Technologique (3IT), Université de Sherbrooke, Sherbrooke, Québec, Canada
- Département de Génie Électrique et Génie Informatique, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Y Bérubé-Lauziére
- Département de Génie Électrique et Génie Informatique, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - R Fontaine
- Institut Interdisciplinaire d'Innovation Technologique (3IT), Université de Sherbrooke, Sherbrooke, Québec, Canada
- Département de Génie Électrique et Génie Informatique, Université de Sherbrooke, Sherbrooke, Québec, Canada
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Conner LT, Srinageshwar B, Bakke JL, Dunbar GL, Rossignol J. Advances in stem cell and other therapies for Huntington's disease: An update. Brain Res Bull 2023:110673. [PMID: 37257627 DOI: 10.1016/j.brainresbull.2023.110673] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/17/2023] [Accepted: 05/26/2023] [Indexed: 06/02/2023]
Abstract
Huntington's disease (HD) is a neurodegenerative disorder caused by an autosomal dominant mutation leading to an abnormal CAG repeat expansion. The result is the synthesis of a toxic misfolded protein, called the mutant huntingtin protein (mHTT). Most current treatments are palliative, but the latest research has expanded into multiple modalities, including stem cells, gene therapy, and even the use of 3D cell structures, called organoids. Stem cell research as a treatment for HD has included the use of various types of stem cells, such as mesenchymal stem cells, neural stem cells, embryonic stem cells, and even reprogrammed stem cells called induced pluripotent stem cells. The goal has been to develop stem cell transplant grafts that will replace the existing mutated neurons, as well as release existing trophic factors for neuronal support. Additionally, research in gene modification using CRISPR-Cas9, PRIME editing, and other forms of genetic modifications are continuing to evolve. Most recently, advancements in stem cell modeling have yielded 3D stem cell tissue models, called organoids. These organoids offer the unique opportunity to transplant a structured stem cell graft which, ideally, models normal human brain tissue more accurately. This manuscript summarizes the recent research in stem cells, genetic modifications, and organoids as a potential for treatment of HD.
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Affiliation(s)
| | - B Srinageshwar
- College of Medicine; Program in Neuroscience; Field Neurosciences Institute Laboratory for Restorative Neurology
| | - J L Bakke
- College of Medicine; Biochemistry, Cell and Molecular Biology
| | - G L Dunbar
- Program in Neuroscience; Field Neurosciences Institute Laboratory for Restorative Neurology; Department of Psychology, Central Michigan University, Mount Pleasant, MI 48859, USA
| | - J Rossignol
- College of Medicine; Program in Neuroscience; Field Neurosciences Institute Laboratory for Restorative Neurology.
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Polivka L, Parietti V, Bruneau J, Soucie E, Madrange M, Bayard E, Rignault R, Canioni D, Fraitag S, Lhermitte L, Feroul M, Tissandier M, Rossignol J, Frenzel L, Cagnard N, Meni C, Bouktit H, Collange AF, Gougoula C, Parisot M, Bader-Meunier B, Livideanu C, Laurent C, Arock M, Hadj-Rabia S, Rüther U, Dubreuil P, Bodemer C, Hermine O, Maouche-Chrétien L. The association of Greig syndrome and mastocytosis reveals the involvement of the hedgehog pathway in advanced mastocytosis. Blood 2021; 138:2396-2407. [PMID: 34424959 DOI: 10.1182/blood.2020010207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 07/28/2021] [Indexed: 11/20/2022] Open
Abstract
Mastocytosis is a heterogeneous disease characterized by an abnormal accumulation of mast cells (MCs) in 1 or several organs. Although a somatic KIT D816V mutation is detected in ∼85% of patients, attempts to demonstrate its oncogenic effect alone have repeatedly failed, suggesting that additional pathways are involved in MC transformation. From 3 children presenting with both Greig cephalopolysyndactyly syndrome (GCPS, Mendelian Inheritance in Man [175700]) and congenital mastocytosis, we demonstrated the involvement of the hedgehog (Hh) pathway in mastocytosis. GCPS is an extremely rare syndrome resulting from haploinsufficiency of GLI3, the major repressor of Hh family members. From these familial cases of mastocytosis, we demonstrate that the Hh pathway is barely active in normal primary MCs and is overactive in neoplastic MCs. GLI3 and KIT mutations had a synergistic, tumorigenic effect on the onset of mastocytosis in a GCPS mouse model. Finally, Hh inhibitors suppressed neoplastic MC proliferation in vitro and extend the survival time of mice with aggressive systemic mastocytosis (ASM). This work revealed, for the first time, the involvement of Hh signaling in the pathophysiology of mastocytosis and demonstrated the cooperative effects of the KIT and Hh oncogenic pathways in mice with ASM, leading to the identification of new promising therapeutic targets.
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Affiliation(s)
- L Polivka
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
- Department of Dermatology, Reference Center for Genodermatoses (MAGEC), Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
| | - V Parietti
- Department of Animal Experimentation, Institut Universitaire d'Hématologie, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - J Bruneau
- Department of Pathology, Hôpital Necker-Enfants Malades, AP-HP, Paris-Centre University, Paris, France
| | - E Soucie
- Centre de Recherche en Cancérologie de Marseille, INSERM U1068, Marseille, France
| | - M Madrange
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
| | - E Bayard
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
| | - R Rignault
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
| | - D Canioni
- Department of Pathology, Hôpital Necker-Enfants Malades, AP-HP, Paris-Centre University, Paris, France
| | - S Fraitag
- Department of Pathology, Hôpital Necker-Enfants Malades, AP-HP, Paris-Centre University, Paris, France
| | - L Lhermitte
- Institut Necker-Enfants Malades, Université de Paris, INSERM Unité (U)1151, Paris, France
- Laboratory of Onco-Hematology, Hôpital Universitaire Necker Enfants-Malades, AP-HP, Paris, France
| | - M Feroul
- Institut Necker-Enfants Malades, Université de Paris, INSERM Unité (U)1151, Paris, France
- Laboratory of Onco-Hematology, Hôpital Universitaire Necker Enfants-Malades, AP-HP, Paris, France
| | - M Tissandier
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
| | - J Rossignol
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
| | - L Frenzel
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
- Department of Hematology, Necker-Enfants Malades Hospital, AP-HP, Paris-Centre University, Imagine Institute, Paris, France
| | - N Cagnard
- Bioinformatics, Platform Bioinformatics, INSERM U1163, Paris-Centre University, Imagine Institute, Paris, France
| | - C Meni
- Department of Dermatology, Reference Center for Genodermatoses (MAGEC), Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - H Bouktit
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
| | - A-F Collange
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
| | - C Gougoula
- Central Unit for Animal Research and Animal Welfare Affairs (ZETT), Heinrich-Heine-University of Düsseldorf, Düsseldorf, Germany
| | - M Parisot
- Genomics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker, INSERM U1163 et INSERM US24/Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Service (UMS)3633, Paris-Centre University, Imagine Institute, Paris, France
| | - B Bader-Meunier
- Department of Pediatric Immunology and Hematology, Necker-Enfants Malades Hospital, AP-HP, INSERM U1163, Paris-Centre University, Paris, France
| | - C Livideanu
- Service de Dermatologie, CEREMAST, CHU de Toulouse
| | - C Laurent
- Service d'Anatomie-Pathologique, Oncopole, Centre Hospitalier de Universitaire (CJU) de Toulouse, Toulouse, France
| | - M Arock
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
- Centre de Recherche des Cordeliers, INSERM Unité de Recherche Mixte en Santé (UMRS)1138, Paris, France
- Laboratory of Hematology, Pitié-Salpêtrière Hospital, AP-HP Sorbonne Université, Paris, France; and
| | - S Hadj-Rabia
- Department of Dermatology, Reference Center for Genodermatoses (MAGEC), Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - U Rüther
- Institute of Animal Developmental and Molecular Biology, Heinrich Heine University, Düsseldorf, Germany
| | - P Dubreuil
- Centre de Recherche en Cancérologie de Marseille, INSERM U1068, Marseille, France
| | - C Bodemer
- Department of Dermatology, Reference Center for Genodermatoses (MAGEC), Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
| | - O Hermine
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
- Department of Hematology, Necker-Enfants Malades Hospital, AP-HP, Paris-Centre University, Imagine Institute, Paris, France
| | - L Maouche-Chrétien
- Laboratory of Molecular Mechanisms of Hematologic Disorders and Therapeutic Implications, INSERM Unité Mixte de Recherche (UMR) 1163, Paris-Centre University, Imagine Institute, Paris, France
- Department of Dermatology, Reference Center for Genodermatoses (MAGEC), Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
- Centre de Référence Maladies Rares des Mastocytoses (CEREMAST), Necker-Enfants Malades Hospital, Paris, France
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Ballul T, Sabato V, Bulai Livideanu C, Neuraz A, Lemal R, Tournilhac O, Terriou L, Launay D, Bouillet L, Gourguechon C, Damaj G, Durupt S, Frenzel L, Bouktit H, Gousseff M, Le Mouel E, Barète S, Hermine O, Lortholary O, Rossignol J. Caractérisation d’une nouvelle entité de maladie mastocytaire primaire associée à l’ostéoporose précoce et à l’anaphylaxie idiopathique: accumulation mastocytaire médullaire avec retentissement clinique (MMRC). Étude internationale du CEREMAST. Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.10.210] [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: 10/19/2022]
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Comont T, Heiblig M, Riviere E, Terriou L, Rossignol J, Bouscary D, Rieu V, Le Guenno G, Mathian A, Aouba A, Vinit J, Dion J, Kosmider O, Terrier B, Georgin-Lavialle S, Fenaux P, Mekinian A. Utilisation de l’azacitidine dans le VEXAS chez des patients porteurs d’un syndrome myélodysplasique : données du registre Français VEXAS. Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.10.250] [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: 10/19/2022]
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Georgin-Lavialle S, Terrier B, Guedon AF, Heiblig M, Comont T, Lazaro E, Lacombe V, Terriou L, Ardois S, Bouaziz JD, Mathian A, Le Guenno G, Aouba A, Outh R, Meyer A, Roux-Sauvat M, Ebbo M, Zhao LP, Bigot A, Jamilloux Y, Guillotin V, Flamarion E, Henneton P, Vial G, Jachiet V, Rossignol J, Vinzio S, Weitten T, Vinit J, Deligny C, Humbert S, Samson M, Magy-Bertrand N, Moulinet T, Bourguiba R, Hanslik T, Bachmeyer C, Sebert M, Kostine M, Bienvenu B, Biscay P, Liozon E, Sailler L, Chasset F, Audemard-Verger A, Duroyon E, Sarrabay G, Borlot F, Dieval C, Cluzeau T, Marianetti P, Lobbes H, Boursier G, Gerfaud-Valentin M, Jeannel J, Servettaz A, Audia S, Larue M, Henriot B, Faucher B, Graveleau J, de Sainte Marie B, Galland J, Bouillet L, Arnaud C, Ades L, Carrat F, Hirsch P, Fenaux P, Fain O, Sujobert P, Kosmider O, Mekinian A. Further characterization of clinical and laboratory features occurring in VEXAS syndrome in a large-scale analysis of multicenter case-series of 116 French patients. Br J Dermatol 2021; 186:564-574. [PMID: 34632574 DOI: 10.1111/bjd.20805] [Citation(s) in RCA: 142] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND A new autoinflammatory syndrome related to somatic mutations of UBA1 was recently described and called VEXAS syndrome. OBJECTIVE To describe clinical characteristics, laboratory findings and outcomes of VEXAS syndrome. DESIGN Case-series. SETTING Patients referred to a French multicenter registry between November 2020 and May 2021. PATIENTS 116 patients with VEXAS syndrome. MEASUREMENTS Frequency and median of parameters and vital status, from diagnosis to the end of the follow-up. RESULTS Main clinical features were skin lesions (83.5%), non-infectious fever (63.6%), weight loss (62%), lung involvement (49.6%), ocular symptoms (38.8%), relapsing chondritis (36.4%), venous thrombosis (34.7%), lymph nodes (33.9%), and arthralgia (27.3%). Hematological disease was present in 58 cases (50%), considered as myelodysplastic syndrome (MDS, n= 58) and monoclonal gammapathy of unknown significance (n=12).UBA1 mutations included p.M41T (44.8%), p.M41V (30.2%), p.M41L (18.1%), and splice mutations (6.9%). After a median follow-up of 3.0 years, 18 patients died (15.5%), from infectious origin (n=9) and MDS progression (n=3). Unsupervised analysis identified 3 clusters: cluster 1 (47%) with mild-to-moderate disease; cluster 2 (16%) with underlying MDS and higher mortality rates; cluster 3 (37%) with constitutional manifestations, higher C-reactive protein levels and less frequent chondritis. Five-year probability of survival was 84.2% in cluster 1, 50.5 % in cluster 2, and 89.6% in cluster 3. UBA1 p.Met41Leu mutation was associated with a better prognosis. CONCLUSION VEXAS syndrome displays a large spectrum of organ manifestations and shows different clinical and prognostic profiles. It also raises a potential impact of the identified UBA1 mutation.
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Affiliation(s)
- S Georgin-Lavialle
- Sorbonne Université, AP-HP, Hôpital Tenon, service de médecine interne, CEREMAIA, F-75020, Paris, France
| | - B Terrier
- University of Paris, AP-HP, Cochin Hospital, Department of Internal Medicine, F-75014, Paris, France
| | - A F Guedon
- Sorbonne Université, Inserm, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, Département de Santé Publique, Hôpital Saint-Antoine, APHP, Paris
| | | | - T Comont
- University Hospital of Toulouse, Department of Internal Medicine and Clinical Immunology, Toulouse, France
| | - E Lazaro
- Department of Internal Medicine and Infectious Diseases, Hôpital Haut-Lévêque, Bordeaux, France
| | - V Lacombe
- Department of Internal Medicine, Angers University Hospital, Angers, France
| | - L Terriou
- Department of Internal Medicine, Lille University Hospital, Lille, France
| | - S Ardois
- Service de médecine interne, CHU de Rennes, Rennes, France
| | - J-D Bouaziz
- Université de Paris, Service de dermatologie, Hôpital Saint Louis, APHP, INSERM U944, Paris, France
| | - A Mathian
- Assistance Publique-Hôpitaux de Paris, Groupement Hospitalier Pitié-Salpêtrière, French National Referral Center for Systemic Lupus Erythematosus, Antiphospholipid Antibody Syndrome and Other Autoimmune Disorders, Service de Médecine Interne 2, Institut E3M, Paris, France
| | - G Le Guenno
- University Hospital Centre of Bordeaux, Saint Andre Hospital, Department of Internal Medicine and Clinical Immunology, F-33000 Bordeaux, France, CHU de Clermont-Ferrand, Hôpital Estaing, service de médecine interne, Clermont-Ferrand, France
| | - A Aouba
- Caen Université, Hôpital de Caen, Department of Internal Medicine, Caen, France
| | - R Outh
- Service de médecine interne et générale, Centre Hospitalier de Perpignan, Perpignan, France
| | - A Meyer
- Service d'immunologie clinique et médecine interne, Nouvel Hôpital Civil, CHU Strasbourg
| | - M Roux-Sauvat
- GHND, Centre Hospitalier Pierre Oudot, 30 avenue du Médipôle, BP 40348, 38302 Bourgoin-Jallieu Cedex
| | - M Ebbo
- Aix Marseille Université, AP-HM, Hôpital de la Timone, Department of Internal Medicine, Marseille, France
| | - L P Zhao
- APHP, Hematology department, CHU of Saint Louis, Paris, France
| | - A Bigot
- 19University of Tours, Tours, France, Department of Internal Medicine and Clinical
| | - Y Jamilloux
- University Hospital of Lyon, Hospices Civils de Lyon, Department of Internal Medicine and Clinical Immunology, Lyon, France
| | - V Guillotin
- University Hospital Centre of Bordeaux, Saint Andre Hospital, Department of Internal Medicine and Clinical Immunology, F-33000 Bordeaux, France, CHU de Clermont-Ferrand, Hôpital Estaing, service de médecine interne, Clermont-Ferrand, France
| | - E Flamarion
- Université de Paris, Service de médecine interne, HEGP Paris, France
| | - P Henneton
- Service de Médecine Vasculaire, CHU Montpellier, 80 Av Augustin Fliche, Montpellier, 34090
| | - G Vial
- University Hospital Centre of Bordeaux, Saint Andre Hospital, Department of Internal Medicine and Clinical Immunology, F-33000 Bordeaux, France, CHU de Clermont-Ferrand, Hôpital Estaing, service de médecine interne, Clermont-Ferrand, France
| | - V Jachiet
- Sorbonne Université, AP-HP, Hôpital Saint Antoine, service de médecine interne et Inflammation-Immunopathology-Biotherapy Department (DMU i3), F-75012, Paris, France
| | - J Rossignol
- Université de Paris, Service d'hématologie, Necker Enfants Malades, Paris, France
| | - S Vinzio
- Univ. Grenoble Alpes, Inserm, U1036, CHU Grenoble Alpes, CEA, IRIG-BCI, 38000, Grenoble, France
| | - T Weitten
- Service de médecine interne, Centre Hospitalier (CHICAS), GAP, France
| | - J Vinit
- Service de médecine interne, Centre Hospitalier, Chalons, France
| | - C Deligny
- Service de Rhumatologie - Médecine Interne 5D · CHU de Martinique - Hôpital P. Zobda-Quitman, France
| | - S Humbert
- CHU de Besançon, Service de Médecine Interne, Besançon, France
| | - M Samson
- Department of Internal Medicine and Clinical Immunology, Dijon University Hospital, Dijon, France
| | - N Magy-Bertrand
- CHU de Besançon, Service de Médecine Interne, Besançon, France
| | - T Moulinet
- Department of Internal Medicine and Clinical Immunology, Regional Competence Center for Systemic and Autoimmune Rare Diseases, Nancy University Hospital, UMR 7365, IMoPA, Lorraine University, CNRS, Vandoeuvre-lès-Nancy, France
| | - R Bourguiba
- Sorbonne Université, AP-HP, Hôpital Tenon, service de médecine interne, CEREMAIA, F-75020, Paris, France
| | - T Hanslik
- AP-HP, Hôpital Ambroise Paris, service de médecine interne, Paris, France
| | - C Bachmeyer
- Sorbonne Université, AP-HP, Hôpital Tenon, service de médecine interne, CEREMAIA, F-75020, Paris, France
| | - M Sebert
- APHP, Hematology department, CHU of Saint Louis, Paris, France
| | - M Kostine
- Department of Rheumatology, Hôpital Haut-Lévesque, Bordeaux, France
| | - B Bienvenu
- Hôpital Saint Joseph, service de médecine interne, Marseille, France
| | - P Biscay
- Clinique Mutualiste Pessac Médecine Interne, Pessac, France
| | - E Liozon
- Service de Médecine Interne, CHU Dupuytren, Limoges, France
| | - L Sailler
- University Hospital of Toulouse, Department of Internal Medicine, Toulouse, France
| | - F Chasset
- Sorbonne Université, Hôpital Tenon, service de dermatologie et allergologie et Inflammation-Immunopathology-Biotherapy Department (DMU i3), F-75020, Paris, France
| | - A Audemard-Verger
- 19University of Tours, Tours, France, Department of Internal Medicine and Clinical
| | - E Duroyon
- Service d'Hématologie Biologique, DMU BioPhyGen GH AP-HP. Centre-University de Paris
| | - G Sarrabay
- Laboratory of Rare and Autoinflammatory Genetic Diseases and Reference Centre for Autoinflammatory Diseases and Amyloidosis (CEREMAIA), CHU Montpellier, University of Montpellier, Montpellier, France
| | - F Borlot
- Service de médecine Interne, CH Béziers, France
| | - C Dieval
- Service de médecine interne et hématologie, CH régional, Rochefort, France
| | - T Cluzeau
- Hematology department, CHU of Nice, Cote d'Azur University, Nice, France
| | - P Marianetti
- CHU de REIMS, Service de médecine interne, maladies infectieuses, immunologie clinique
| | - H Lobbes
- University Hospital Centre of Bordeaux, Saint Andre Hospital, Department of Internal Medicine and Clinical Immunology, F-33000 Bordeaux, France, CHU de Clermont-Ferrand, Hôpital Estaing, service de médecine interne, Clermont-Ferrand, France
| | - G Boursier
- Laboratory of Rare and Autoinflammatory Genetic Diseases and Reference Centre for Autoinflammatory Diseases and Amyloidosis (CEREMAIA), CHU Montpellier, University of Montpellier, Montpellier, France
| | - M Gerfaud-Valentin
- University Hospital of Lyon, Hospices Civils de Lyon, Department of Haematology, Lyon, France
| | - J Jeannel
- Université de Paris, Service de médecine interne, HEGP Paris, France
| | - A Servettaz
- CHU de REIMS, Service de médecine interne, maladies infectieuses, immunologie clinique
| | - S Audia
- Department of Internal Medicine and Clinical Immunology, Dijon University Hospital, Dijon, France
| | - M Larue
- APHP, Service de rhumatologie, Hôpital Henri Mondor, Créteil, France
| | - B Henriot
- Service de médecine interne, Centre Hospitalier René Pleven, Dinan, France
| | - B Faucher
- Aix Marseille Université, AP-HM, Hôpital de la Timone, Department of Internal Medicine, Marseille, France
| | - J Graveleau
- CHU de Nantes Hôtel Dieu, Service de Médecine Interne, Nantes, France
| | - B de Sainte Marie
- University Hospital Centre of Bordeaux, Saint Andre Hospital, Department of Internal Medicine and Clinical Immunology, F-33000 Bordeaux, France, CHU de Clermont-Ferrand, Hôpital Estaing, service de médecine interne, Clermont-Ferrand, France
| | - J Galland
- Service de médecine interne, hôpital Fleyriat, Centre hospitalier Bourg-en-Bresse, France
| | - L Bouillet
- Univ. Grenoble Alpes, Inserm, U1036, CHU Grenoble Alpes, CEA, IRIG-BCI, 38000, Grenoble, France
| | - C Arnaud
- University Hospital of Toulouse, Department of Internal Medicine, Toulouse, France
| | - L Ades
- APHP, Hematology department, CHU of Saint Louis, Paris, France
| | - F Carrat
- Sorbonne Université, Inserm, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, Département de Santé Publique, Hôpital Saint-Antoine, APHP, Paris
| | - P Hirsch
- Sorbonne Université, AP-HP, Hôpital Saint Antoine, service d'hématologie biologique, F-75012, Paris, France
| | - P Fenaux
- APHP, Hematology department, CHU of Saint Louis, Paris, France
| | - O Fain
- Sorbonne Université, AP-HP, Hôpital Saint Antoine, service de médecine interne et Inflammation-Immunopathology-Biotherapy Department (DMU i3), F-75012, Paris, France
| | - P Sujobert
- CHU de Besançon, Service de Médecine Interne, Besançon, France
| | - O Kosmider
- Service d'Hématologie Biologique, DMU BioPhyGen GH AP-HP. Centre-University de Paris
| | - A Mekinian
- Sorbonne Université, AP-HP, Hôpital Saint Antoine, service de médecine interne et Inflammation-Immunopathology-Biotherapy Department (DMU i3), F-75012, Paris, France
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Rossignol J, Marzac C, Dellal A, Solary E, Jachiet V, Belfeki N, Slaoui M, Georgin-Lavialle S, Benarroche D, Hermine O, Fain O, Mekinian A. Mutation du gène UBA1 dans l’artérite à cellules géantes. Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.03.256] [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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9
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Polivka L, Parietti V, Soucie E, Bayard E, Canioni D, Fraitag S, Lhermitte L, Tissandier M, Rossignol J, Cagnard N, Bader-Meunier B, Arock M, Hadj-Rabia S, Dubreuil P, Bodemer C, Hermine O, Maouche-Chrétien L. Implication de la voie de signalisation Hedgehog dans les mastocytoses. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.076] [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: 10/22/2022]
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10
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Willekens C, Rahme R, Duchmann M, Vidal V, Saada V, Broutin S, Delahousse J, Renneville A, Marceau A, Clappier E, Uzunov M, Rossignol J, Pascal L, Simon L, Micol JB, Pasquier F, Raffoux E, Preudhomme C, Quivoron C, Itzykson R, Penard-Lacronique V, Paci A, Fenaux P, Attar EC, Frattini M, Braun T, Ades L, De Botton S. Effects of azacitidine in 93 patients with IDH1/2 mutated acute myeloid leukemia/myelodysplastic syndromes: a French retrospective multicenter study. Leuk Lymphoma 2020; 62:438-445. [PMID: 33043739 DOI: 10.1080/10428194.2020.1832661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Isocitrate dehydrogenase 1 (IDH1) and 2 (IDH2) mutations in Myeloid Neoplams (MNs) exhibit DNA hypermethylation via 2-hydroxyglutarate (2HG) over-production. Clinical impact of azacitidine (AZA) remains inconsistent in IDH1/2-mutated MNs and the potential of serum 2HG as a suitable marker of response to AZA is unknown. To address these questions, we retrospectively analyzed 93 MNs patients (78 AML, 11 MDS, 4 CMML) with IDH1/2 mutations treated with AZA. After a median of 5 cycles of AZA, overall response rate was 28% (including 15% complete remission) and median OS was 12.3 months (significantly shorter in AML compared to MDS/CMML patients). In multivariate analysis of AML patients, DNMT3A mutation was associated with shorter OS while IDH1/2 mutation subtypes had no independent impact. No difference was observed in serum 2HG levels upon AZA treatment between responding and refractory patients suggesting that serum 2HG cannot be used as a surrogate marker of AZA response.
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Affiliation(s)
- C Willekens
- Département d'Hématologie, Gustave Roussy, Université Paris-Saclay, Villejuif, France.,Inserm U1170, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - R Rahme
- Département d'Hématologie, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université Paris Diderot, Paris, France.,Inserm U944, Hôpital Saint-Louis, Paris, France
| | - M Duchmann
- Laboratoire d'Hématologie, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Université Paris Diderot, Paris, France
| | - V Vidal
- Département d'Hématologie, Hôpital Avicenne, Assistance Publique-Hôpitaux de Paris, Bobigny, France
| | - V Saada
- Département de Biologie et Pathologie médicales, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - S Broutin
- Département de Biologie et Pathologie médicales, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - J Delahousse
- Département de Biologie et Pathologie médicales, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - A Renneville
- Centre de Biologie-Pathologie, Laboratoire d'hématologie, Centre Hospitalier Universitaire de Lille, France
| | - A Marceau
- Centre de Biologie-Pathologie, Laboratoire d'hématologie, Centre Hospitalier Universitaire de Lille, France
| | - E Clappier
- Laboratoire d'Hématologie, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Université Paris Diderot, Paris, France
| | - M Uzunov
- Département d'Hématologie, Hôpital Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - J Rossignol
- Département d'Hématologie, Gustave Roussy, Université Paris-Saclay, Villejuif, France.,Département d'Hématologie, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - L Pascal
- Hématologie, Groupement des Hôpitaux de l'Institut Catholique de Lille, Lille, France
| | - L Simon
- Département d'Hématologie, Hôpital universitaire d'Amiens - Picardie, Amiens, France
| | - J B Micol
- Département d'Hématologie, Gustave Roussy, Université Paris-Saclay, Villejuif, France.,Inserm U1170, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - F Pasquier
- Département d'Hématologie, Gustave Roussy, Université Paris-Saclay, Villejuif, France.,Inserm U1170, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - E Raffoux
- Département d'Hématologie, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université Paris Diderot, Paris, France.,Inserm U944, Hôpital Saint-Louis, Paris, France
| | - C Preudhomme
- Centre de Biologie-Pathologie, Laboratoire d'hématologie, Centre Hospitalier Universitaire de Lille, France
| | - C Quivoron
- Inserm U1170, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - R Itzykson
- Département d'Hématologie, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université Paris Diderot, Paris, France.,Inserm U944, Hôpital Saint-Louis, Paris, France
| | | | - A Paci
- Département de Biologie et Pathologie médicales, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - P Fenaux
- Département d'Hématologie, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université Paris Diderot, Paris, France.,Inserm U944, Hôpital Saint-Louis, Paris, France
| | - E C Attar
- Agios Pharmaceuticals, Inc, Cambridge, MA, USA
| | | | - T Braun
- Département d'Hématologie, Hôpital Avicenne, Assistance Publique-Hôpitaux de Paris, Bobigny, France
| | - L Ades
- Département d'Hématologie, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université Paris Diderot, Paris, France.,Inserm U944, Hôpital Saint-Louis, Paris, France
| | - S De Botton
- Département d'Hématologie, Gustave Roussy, Université Paris-Saclay, Villejuif, France.,Inserm U1170, Gustave Roussy, Université Paris-Saclay, Villejuif, France
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Michot JM, Camara-Clayette V, Quivoron C, Danu A, Lazarovici J, Ghez D, Rossignol J, Baldini C, Martin Romano P, Sarkozy C, Varga A, Cotteret S, Dartigues P, Massard C, Ribrag V. 24P Is molecular characterization useful for targeted therapy orientation in patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) included in early phase clinical trials? Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2183] [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: 11/17/2022] Open
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Ricard L, Hirsch P, Mohty M, Fain O, Gaugler B, Rossignol J, Delhommeau F, Mekinian A. AB0161 CLONAL HEMATOPOIESIS IS INCREASED AND NOT RELATED TO AGING IN SYSTEMIC SCLEROSIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.5489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic sclerosis (SSc) is an autoimmune disease characterized by fibrosis, microangiopathy and immune dysfunctions including dysregulation of proinflammatory cytokines. Clonal hematopoiesis of indeterminate potential (CHIP) is defined by the acquisition of somatic mutations in hematopoietic stem cells leading to detectable clones in the blood. Recent data have shown a higher risk of cardiovascular disease in patients with CHIP resulting from increased production of proinflammatory cytokines and accelerated atherosclerosis. Eventual links between CHIP and autoimmune diseases are undetermined.Objectives:The aim of our study was to evaluate the prevalence of CHIP in SSc patients and its association with clinical phenotype.Methods:Forty-one genes frequently mutated in myeloid malignancies were sequenced in peripheral blood mononuclear cells from 90 SSc patients and from 44 healthy donors.Results:A total of 15 somatic variants was detected in 13/90 SSc patients (14%) and 4 somatic variants in 4/44 (9%) HD (p=0.58). The prevalence of CHIP was significantly higher in younger SSc patients than in HD: 25% (6/24) vs 4% (1/26) (p=0.045) under 50 years and 17% (7/42) vs 3% (1/38) (p=0.065) under 60 years. The prevalence of CHIP in patients over 70 years was similar in SSc patients and healthy donorsFor SSc patients the most common mutations occurred inDNMT3A(7 variants). Other variants involvedATM,SF3B1, SETBP1, TET2,TP53,NF1orCBL. The distribution of gene mutations was overall comparable in SSc patients and in previously described CHIP series (3)In most SSc patients, we identified a single CHIP mutation. Several mutations were detected in two SSc patients:SETBP1andNF1in one and,TET2andATMin the other Clonal mutations included missense (n=10), nonsense (n=3), frameshift (n=1) and a single splice site mutation. In all HD we detected a single CHIP mutation which occurred inDNMT3A, TP53 and CSF3RVariant allele frequencies (VAF) of CHIP mutations ranged from 2 to 18.6% and did not differ between genes (DNMT3Aor others). Mean age was the same in patients withDNMT3Amutations or with other mutations. However, C>T transversions, that have been associated with ageing were more frequent inDNMT3Avariants than in other genes, suggesting distinct mechanisms for mutation acquisition or clonal selection No major differences in clinical and laboratory data were observed between SSc patients with or without CHIP. SSc subtypes, disease duration, different organ involvements and the prevalence of ischemic events were not associated with the presence of CHIP, except less frequent pyrosis in patients with CHIP than those without. SSc patients with CHIP had significantly more anti-RNA polymerase III antibodies than those without CHIP (p=0.045) At the time of analysis, 45 SSc patients had received a treatment for SSc which consisted in low-dose steroids, hydroxychloroquine, mycophenolate mofetil, cyclophosphamide or methotrexate. SSc patients with CHIP were significantly more exposed to cyclophosphamide (3/13 vs. 3/77) (p=0.04) (5, 6.5 and 11 gram respectively between 5 years to 8 years before the NGS sequencing analysis), but among these cyclophosphamide-exposed SSc the age was over 65 in 2/3 of them. When considering all immunosuppressive drugs (cyclophosphamide, methotrexate and mycophenolate mofetil) SSc patients with CHIP were not more exposed than those without CHIP (p=0.75) No patient developed any hematologic malignancy and no cytopenia during the median follow-up of 13 months (0-24 months). One SSc patients with CHIP developed a small lung cancer few months after NGS testing.Conclusion:Whether CHIP increases the risk to develop SSc or is a consequence of a SSc-derived modified bone marrow micro-environment remains to be explored.Acknowledgments:naDisclosure of Interests:None declared
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Rossignol J, Turtos RM, Gundacker S, Gaudreault D, Auffray E, Lecoq P, Bérubé-Lauzière Y, Fontaine R. Time-of-flight computed tomography - proof of principle. Phys Med Biol 2020; 65:085013. [PMID: 32084652 DOI: 10.1088/1361-6560/ab78bf] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Computed tomography has greatly improved over the last decade, especially through x-ray dose exposure reduction while maintaining image quality. Herein, a new concept is proposed to improve the contrast-to-noise ratio (CNR) by including the time-of-flight (TOF) information of individual photons to obtain further insight on the photon's trajectory and to reject scatter contribution. The proof of the concept relies on both simulation and experimental measurements in a cone-beam computed tomography arrangement. Results show a statistical difference between the TOF of scattered and primary photons exploitable in TOF computed tomography. For a large volume of the size of a human abdomen, a scatter reduction from 296% to 4% is achieved in our simulation setup with perfect timing measurements which yields a 110% better CNR, or a dose reduction by a factor of four. Cup artifacts are also reduced from 24.7% to 0.8%, and attenuation inaccuracies are improved from -26.3% to -0.8%. With 100 ps and 10 ps FWHM timing jitters, respectively 75% and 95% of the scatter contribution can be removed with marginal gains below 10 ps. Experimental measurements confirm the feasibility of measuring statistical differences between the TOF of scattered and primary photons.
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Affiliation(s)
- J Rossignol
- Institut Interdisciplinaire d'Innovation Technologique (3IT), Université de Sherbrooke, Sherbrooke, Québec, Canada. Département de Génie Électrique et Génie Informatique, Université de Sherbrooke, Sherbrooke, Québec, Canada
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Roupie A, Fain O, Mekinian A, Terrier B, Regent A, de Boysson H, Carrat F, Seguier J, Terriou L, Versini M, Queyrel V, Groh M, Benhamou Y, Maurier F, Decaux O, Le Clech L, d’Aveni M, Rossignol J, Gal J. Vascularites associées aux syndromes myélodysplasiques : étude de cas multicentrique française. Rev Med Interne 2019. [DOI: 10.1016/j.revmed.2019.10.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Polivka L, Rossignol J, Neuraz A, Condé D, Méni C, Dubreuil P, Maouche-Chrétien L, Hadj-Rabia S, Hermine O, Bodemer C. Facteurs cliniques et moléculaires associés à la régression de la mastocytose : étude d’une cohorte de 272 enfants. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Peruzzaro ST, Andrews MMM, Al-Gharaibeh A, Pupiec O, Resk M, Story D, Maiti P, Rossignol J, Dunbar GL. Transplantation of mesenchymal stem cells genetically engineered to overexpress interleukin-10 promotes alternative inflammatory response in rat model of traumatic brain injury. J Neuroinflammation 2019; 16:2. [PMID: 30611291 PMCID: PMC6320578 DOI: 10.1186/s12974-018-1383-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [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: 09/13/2018] [Accepted: 11/28/2018] [Indexed: 12/13/2022] Open
Abstract
Background Traumatic brain injury (TBI) is a major cause for long-term disability, yet the treatments available that improve outcomes after TBI limited. Neuroinflammatory responses are key contributors to determining patient outcomes after TBI. Transplantation of mesenchymal stem cells (MSCs), which release trophic and pro-repair cytokines, represents an effective strategy to reduce inflammation after TBI. One such pro-repair cytokine is interleukin-10 (IL-10), which reduces pro-inflammatory markers and trigger alternative inflammatory markers, such as CD163. In this study, we tested the therapeutic effects of MSCs that were engineered to overexpress IL-10 when transplanted into rats following TBI in the medial frontal cortex. Methods Thirty-six hours following TBI, rats were transplanted with MSCs and then assessed for 3 weeks on a battery of behavioral tests that measured motor and cognitive abilities. Histological evaluation was then done to measure the activation of the inflammatory response. Additionally, immunomodulatory effects were evaluated by immunohistochemistry and Western blot analyses. Results A significant improvement in fine motor function was observed in rats that received transplants of MSCs engineered to overexpress IL-10 (MSCs + IL-10) or MSCs alone compared to TBI + vehicle-treated rats. Although tissue spared was unchanged, anti-inflammatory effects were revealed by a reduction in the number of glial fibrillary acidic protein cells and CD86 cells in both TBI + MSCs + IL-10 and TBI + MSC groups compared to TBI + vehicle rats. Microglial activation was significantly increased in the TBI + MSC group when compared to the sham + vehicle group. Western blot data suggested a reduction in tumor necrosis factor-alpha in the TBI + MSCs + IL-10 group compared to TBI + MSC group. Immunomodulatory effects were demonstrated by a shift from classical inflammation expression (CD86) to an alternative inflammation state (CD163) in both treatments with MSCs and MSCs + IL-10. Furthermore, co-labeling of both CD86 and CD163 was detected in the same cells, suggesting a temporal change in macrophage expression. Conclusions Overall, our findings suggest that transplantation of MSCs that were engineered to overexpress IL-10 can improve functional outcomes by providing a beneficial perilesion environment. This improvement may be explained by the shifting of macrophage expression to a more pro-repair state, thereby providing a possible new therapy for treating TBI.
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Affiliation(s)
- S T Peruzzaro
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA
| | - M M M Andrews
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA
| | - A Al-Gharaibeh
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA
| | - O Pupiec
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA
| | - M Resk
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA
| | - D Story
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Department of Psychology, Central Michigan University, Mt. Pleasant, MI, 48859, USA
| | - P Maiti
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Department of Psychology, Central Michigan University, Mt. Pleasant, MI, 48859, USA.,Field Neurosciences Institute, St. Mary's of Michigan, Saginaw, MI, 48604, USA.,Department of Biology, Saginaw Valley State University, Saginaw, MI, 48610, USA.,Brain Research Laboratory, Saginaw Valley State University, Saginaw, MI, 48610, USA
| | - J Rossignol
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA. .,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA. .,College of Medicine, Central Michigan University, Mt. Pleasant, MI, 48859, USA.
| | - G L Dunbar
- Field Neurosciences Institute of Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI, 48859, USA. .,Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI, 48859, USA. .,Department of Psychology, Central Michigan University, Mt. Pleasant, MI, 48859, USA. .,Field Neurosciences Institute, St. Mary's of Michigan, Saginaw, MI, 48604, USA. .,Brain Research Laboratory, Saginaw Valley State University, Saginaw, MI, 48610, USA.
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Flores C, Hermine O, Maciel T, Rignault R, Rossignol J, Lepelletier Y. The immune modulation role of low dosage of cyclosporin-A (ldCSA) in the antitumor response of CD8+ T lymphocytes (CD8+Tcells) and the implication of neuropilin-1 (Nrp1). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx711.053] [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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Lowrance SA, Fink KD, Crane A, Matyas J, Dey ND, Matchynski JJ, Thibo T, Reinke T, Kippe J, Hoffman C, Sandstrom M, Rossignol J, Dunbar GL. Bone-marrow-derived mesenchymal stem cells attenuate cognitive deficits in an endothelin-1 rat model of stroke. Restor Neurol Neurosci 2016; 33:579-88. [PMID: 23902985 DOI: 10.3233/rnn-130329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE Stroke is the third leading cause of death and permanent disability in the United States, often producing long-term cognitive impairments, which are not easily recapitulated in animal models. The goals of this study were to assess whether: (1) the endothelin-1 (ET-1) model of chronic stroke produced discernable cognitive deficits; (2) a spatial operant reversal task (SORT) would accurately measure memory deficits in this model; and (3) bone-marrow-derived mesenchymal stem cells (BMMSCs) could reduce any observed deficits. METHODS Rats were given unilateral intracerebral injections of vehicle or ET-1, a stroke-inducing agent, near the middle cerebral artery. Seven days later, they were given intrastriatal injections of BMMSCs or vehicle, near the ischemic penumbra. The cognitive abilities of the rats were assessed on a novel SORT, which was designed to efficiently distinguish cognitive deficits from potential motoric confounds. RESULTS Rats given ET-1 had significantly more cognitive errors at six weeks post-stroke on the SORT, and that these deficits were attenuated by BMMSC transplants. CONCLUSIONS These findings indicate that: (1) the ET-1 model produces chronic cognitive deficits; (2) the SORT efficiently measures cognitive deficits that are not confounded by motoric impairment; and (3) BMMSCs may be a viable treatment for stroke-induced cognitive dysfunction.
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Affiliation(s)
- S A Lowrance
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - K D Fink
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - A Crane
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - J Matyas
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - N D Dey
- Field Neurosciences Institute, Saginaw, MI, USA
| | - J J Matchynski
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - T Thibo
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - T Reinke
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - J Kippe
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - C Hoffman
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - M Sandstrom
- Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA
| | - J Rossignol
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA.,Central Michigan University College of Medicine, Mount Pleasant, MI, USA
| | - G L Dunbar
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mount Pleasant, MI, USA.,Central Michigan University Program in Neuroscience, Mount Pleasant, MI, USA.,Field Neurosciences Institute, Saginaw, MI, USA
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Rossignol J, Terriou L, Robu D, Willekens C, Hivert B, Pascal L, Guieze R, Trappe R, Baillet C, Huglo D, Morschhauser F. Radioimmunotherapy ((90) Y-Ibritumomab Tiuxetan) for Posttransplant Lymphoproliferative Disorders After Prior Exposure to Rituximab. Am J Transplant 2015; 15:1976-81. [PMID: 25868706 DOI: 10.1111/ajt.13244] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 01/18/2015] [Accepted: 01/25/2015] [Indexed: 01/25/2023]
Abstract
Posttransplantation lymphoproliferative disorders (PTLDs) are life-threatening complications after solid organ and hematopoietic stem cell transplantation. Only half of CD20-positive PTLDs respond to rituximab monotherapy, and outcomes remain poor for patients with relapsed/refractory disease, especially those who do not qualify for an anthracycline containing regimen due to frailty or comorbidities. Radioimmunotherapy (RIT) might be an option in this particular setting. We report a panel of eight patients with rituximab refractory/relapsed CD20-positive PTLDs including three ineligible for subsequent CHOP-like chemotherapy who received (90) Y-Ibritumomab tiuxetan as a single agent (n = 7) or combined to chemotherapy (n = 1). Five out of eight patients were kidney transplant recipients, while 2/8 had a liver transplant and 1/8 had a heart transplant. Patients received a median of two previous therapies. Overall response rate was 62.5%. Importantly, all responders achieved complete response. At a median follow-up of 37 months [5; 84], complete response was ongoing in four patients. Toxicity was predominantly hematological and easily manageable. No graft rejection was noticed concomitantly or following RIT administration despite immunosuppression reduction after diagnosis of PTLDs. This report emphasizes the potential efficiency of salvage RIT for early rituximab refractory PTLDs without any unexpected toxicity.
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Affiliation(s)
- J Rossignol
- Service des Maladies du Sang, CHRU de Lille, Lille, France
| | - L Terriou
- Service des Maladies du Sang, CHRU de Lille, Lille, France
| | - D Robu
- Service des Maladies du Sang, CHRU de Lille, Lille, France
| | - C Willekens
- Service des Maladies du Sang, CHRU de Lille, Lille, France
| | - B Hivert
- Service des Maladies du Sang, CHRU de Lille, Lille, France
| | - L Pascal
- Service des Maladies du Sang, CHRU de Lille, Lille, France
| | - R Guieze
- Service des Maladies du Sang, CHRU de Lille, Lille, France
| | - R Trappe
- Division of Hematology and Oncology, Department of Medicine, Ev. Diakonie-Krankenhaus, Bremen, Germany
| | - C Baillet
- Service de médecine nucléaire, CHRU de Lille, Lille, France
| | - D Huglo
- Service de médecine nucléaire, CHRU de Lille, Lille, France
| | - F Morschhauser
- Service des Maladies du Sang, CHRU de Lille, Lille, France
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Fraison J, Mekinian A, Grignano E, Kahn J, Arlet J, Silva NM, Berthier S, Liozon E, Denis G, Buchdahl A, Omouri M, Grosbois B, Park S, Bourgarit-Durand A, Rossignol J, Fenaux P, Fain O, Braun T. 280 EFFICACY OF AZACITIDINE (AZA) IN AUTOIMMUNE DISORDERS (AID) ASSOCIATED WITH MDS. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30281-2] [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: 11/28/2022]
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Grignano E, Mekinian A, Braun T, Liozon E, Hamidou M, Decaux O, Puéchal X, Kahn J, Schoindre Y, Rossignol J, Fenaux P, Fain O. Manifestations auto-immunes et maladies inflammatoires associées aux leucémies myélomonocytaires chroniques : étude rétrospective française. Rev Med Interne 2014. [DOI: 10.1016/j.revmed.2014.10.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lescaudron L, Boyer C, Bonnamain V, Fink KD, Lévêque X, Rossignol J, Nerrière-Daguin V, Malouet AC, Lelan F, Dey ND, Michel-Monigadon D, Lu M, Neveu I, von Hörsten S, Naveilhan P, Dunbar GL. Assessing the potential clinical utility of transplantations of neural and mesenchymal stem cells for treating neurodegenerative diseases. Methods Mol Biol 2012; 879:147-64. [PMID: 22610559 DOI: 10.1007/978-1-61779-815-3_10] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Treatments for neurodegenerative diseases have little impact on the long-term patient health. However, cellular transplants of neuroblasts derived from the aborted embryonic brain tissue in animal models of neurodegenerative disorders and in patients have demonstrated survival and functionality in the brain. However, ethical and functional problems due to the use of this fetal tissue stopped most of the clinical trials. Therefore, new cell sources were needed, and scientists focused on neural (NSCs) and mesenchymal stem cells (MSCs). When transplanted in the brain of animals with Parkinson's or Huntington's disease, NSCs and MSCs were able to induce partial functional recovery by promoting neuroprotection and immunomodulation. MSCs are more readily accessible than NSCs due to sources such as the bone marrow. However, MSCs are not capable of differentiating into neurons in vivo where NSCs are. Thus, transplantation of NSCs and MSCs is interesting for brain regenerative medicine. In this chapter, we detail the methods for NSCs and MSCs isolation as well as the transplantation procedures used to treat rodent models of neurodegenerative damage.
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Rossignol J, Barochi G, de Fonseca B, Brunet J, Bouvet M, Pauly A, Markey L. Development of Gas Sensors by Microwave Transduction with Phthalocyanine Film. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proeng.2012.09.365] [Citation(s) in RCA: 4] [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] [Indexed: 10/27/2022]
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Remy S, Tesson L, Usal C, Menoret S, Bonnamain V, Nerriere-Daguin V, Rossignol J, Boyer C, Nguyen TH, Naveilhan P, Lescaudron L, Anegon I. New lines of GFP transgenic rats relevant for regenerative medicine and gene therapy. Transgenic Res 2010; 19:745-63. [PMID: 20094912 DOI: 10.1007/s11248-009-9352-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Accepted: 12/08/2009] [Indexed: 02/07/2023]
Abstract
Adoptive cell transfer studies in regenerative research and identification of genetically modified cells after gene therapy in vivo require unequivocally identifying and tracking the donor cells in the host tissues, ideally over several days or for up to several months. The use of reporter genes allows identifying the transferred cells but unfortunately most are immunogenic to wild-type hosts and thus trigger rejection in few days. The availability of transgenic animals from the same strain that would express either high levels of the transgene to identify the cells or low levels but that would be tolerant to the transgene would allow performing long-term analysis of labelled cells. Herein, using lentiviral vectors we develop two new lines of GFP-expressing transgenic rats displaying different levels and patterns of GFP-expression. The "high-expresser" line (GFP(high)) displayed high expression in most tissues, including adult neurons and neural precursors, mesenchymal stem cells and in all leukocytes subtypes analysed, including myeloid and plasmacytoid dendritic cells, cells that have not or only poorly characterized in previous GFP-transgenic rats. These GFP(high)-transgenic rats could be useful for transplantation and immunological studies using GFP-positive cells/tissue. The "low-expresser" line expressed very low levels of GFP only in the liver and in less than 5% of lymphoid cells. We demonstrate these animals did not develop detectable humoral and cellular immune responses against both transferred GFP-positive splenocytes and lentivirus-mediated GFP gene transfer. Thus, these GFP-transgenic rats represent useful tools for regenerative medicine and gene therapy.
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Affiliation(s)
- S Remy
- INSERM, U643, 30 Bd Jean Monnet, 44093, Nantes cedex 01, Nantes, France.
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Yamamoto Y, Hakki A, Friedman H, Okubo S, Shimamura T, Hoffman PS, Rossignol J. Nitazoxanide, a nitrothiazolide antiparasitic drug, is an anti-Helicobacter pylori agent with anti-vacuolating toxin activity. Chemotherapy 1999; 45:303-12. [PMID: 10394014 DOI: 10.1159/000007200] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Nitazoxanide (NTZ), a synthesized drug of the nitrothiazolide class, was initially developed as an antiparasitic compound. This compound has recently been shown to have antibacterial activities against some bacterial pathogens. In the present study, NTZ and its main metabolite tizoxanide (TIZ) were found to have strong minimum inhibitory concentrations (MICs) against both metronidazole (MTZ)-resistant strains and sensitive clinical isolates of Helicobacter pylori. The MIC90 of both NTZ and TIZ against 37 clinical isolates was 8 microg/ml. Vacuolating toxin activity of H. pylori assayed by HeLa cell vacuole formation was inhibited by NTZ at a sub-MIC. In contrast, urease production by H. pylori was not specifically affected by the sub-MIC of NTZ. An acidic pH (pH 5.0) medium reduced the antimicrobial activity of the drug in terms of growth inhibition due to the low growth rate of the bacteria, but killing activity of NTZ against the bacteria was still observed. Thus, it was apparent that both NTZ and TIZ are highly effective against H. pylori, even when the bacteria are resistant to MTZ.
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Affiliation(s)
- Y Yamamoto
- Department of Medical Microbiology and Immunology, University of South Florida College of Medicine, Tampa, Fla. 33612, USA.
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Rossignol J. Comments on an experimental end-user training course. Med Inform (Lond) 1980; 5:71-3. [PMID: 6995742 DOI: 10.3109/14639238009043442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The MEDLINE training course organized for users was based on the experience acquired by IMA from problem encountered in the user/system concerning: (a) The understanding of a computerized documentation system and its capabilitiesd. (b) The role of the computer, often over-estimated. (c) The user-search analyst interface, i.e. the role of the analyst, the necessity for the user to explain his question clearly and his real need for information. All these problems were discussed concretely with the help of specific searches presented by each of the participants.
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