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Solanich X, Antolí A, Padullés N, Fanlo-Maresma M, Iriarte A, Mitjavila F, Capdevila O, Molina M, Sabater J, Bas J, Mensa-Vilaró A, Niubó J, Calvo N, Bolivar S, Rigo-Bonnin R, Arregui L, Tebé C, Hereu P, Videla S, Corbella X. Pragmatic, open-label, single-center, randomized, phase II clinical trial to evaluate the efficacy and safety of methylprednisolone pulses and tacrolimus in patients with severe pneumonia secondary to COVID-19: The TACROVID trial protocol. Contemp Clin Trials Commun 2021; 21:100716. [PMID: 33495742 PMCID: PMC7817439 DOI: 10.1016/j.conctc.2021.100716] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 10/12/2020] [Accepted: 01/11/2021] [Indexed: 12/21/2022] Open
Abstract
Introduction Some COVID-19 patients evolve to severe lung injury and systemic hyperinflammatory syndrome triggered by both the coronavirus infection and the subsequent host-immune response. Accordingly, the use of immunomodulatory agents has been suggested but still remains controversial. Our working hypothesis is that methylprednisolone pulses and tacrolimus may be an effective and safety drug combination for treating severe COVID-19 patients. Methods and analysis: TACROVID is a randomized, open-label, single-center, phase II trial to evaluate the efficacy and safety of methylprednisolone pulses and tacrolimus plus standard of care (SoC) versus SoC alone, in patients at advanced stage of COVID-19 disease with lung injury and systemic hyperinflammatory response. Patients are randomly assigned (1:1) to one of two arms (42 patients in each group). The primary aim is to assess the time to clinical stability after initiating randomization. Clinical stability is defined as body temperature ≤37.5 °C, and PaO2/FiO2 > 400 and/or SatO2/FiO2 > 300, and respiratory rate ≤24 rpm; for 48 consecutive hours. Discussion Methylprednisolone and tacrolimus might be beneficial to treat those COVID-19 patients progressing into severe pulmonary failure and systemic hyperinflammatory syndrome. The rationale for its use is the fast effect of methylprednisolone pulses and the ability of tacrolimus to inhibit both the CoV-2 replication and the secondary cytokine storm. Interestingly, both drugs are low-cost and can be manufactured on a large scale; thus, if effective and safe, a large number of patients could be treated in developed and developing countries. Trial registration number NCT04341038 / EudraCT: 2020-001445-39.
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Affiliation(s)
- X Solanich
- Department of Internal Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - A Antolí
- Department of Internal Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - N Padullés
- Department of Pharmacy, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Fanlo-Maresma
- Department of Internal Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - A Iriarte
- Department of Internal Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - F Mitjavila
- Department of Internal Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - O Capdevila
- Department of Internal Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Molina
- Department of Respiratory Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - J Sabater
- Department of Intensive Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - J Bas
- Department of Immunology, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - A Mensa-Vilaró
- Immunology Service, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - J Niubó
- Department of Microbiology, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - N Calvo
- Department of Diagnostic Imaging, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Bolivar
- Department of Diagnostic Imaging, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - R Rigo-Bonnin
- Department of Clinical Laboratory, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - L Arregui
- Department of BUH-ICO-IDIBELL Biobank, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - C Tebé
- Department of Statistics, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - P Hereu
- Department of Clinical Pharmacology, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Department of Clinical Research and Clinical Trial Unit (UICEC-IDIBELL), Plataforma SCRen, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Videla
- Department of Clinical Pharmacology, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Department of Clinical Research and Clinical Trial Unit (UICEC-IDIBELL), Plataforma SCRen, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - X Corbella
- Department of Internal Medicine, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Evaluation of Health Determinants and Health Policies Group, Hestia Chair in Integrated Health and Social Care, School of Medicine, Universitat Internacional de Catalunya, Barcelona, Spain
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Arcani R, Grapperon AM, Venton G, Suchon P, Verschueren A, Bas J, Salort-Campana E, Attarian S, Delmont E. Should we prevent thrombosis related to intravenous immunoglobulin infusions with systematic anticoagulant prophylaxis? Rev Neurol (Paris) 2020; 177:100-106. [PMID: 32718469 DOI: 10.1016/j.neurol.2020.04.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 04/09/2020] [Accepted: 04/28/2020] [Indexed: 10/23/2022]
Abstract
Intravenous immunoglobulins (IVIg) are commonly used for treatment of dysimmune diseases, but they are known to promote thrombotic events. The medical records of patients who received IVIg infusions to treat neuromuscular disorders were retrospectively studied during two periods: the on-demand period (May 2013-January 2015), when patients received anticoagulant prophylaxis based on personal thrombotic risk factors, and the systematic period (May 2015-January 2017), when patients received systematic anticoagulant prophylaxis. Of the 334 total patients included, 19/153 received anticoagulant prophylaxis in the on-demand period, and 181 were treated in the systematic period. In the on-demand period, thrombosis occurred in three patients (1.96%) as one central retinal artery occlusion, one pulmonary embolism, and one brachiocephalic vein thrombosis. In the systematic period, thrombosis occurred in two patients (1.1%), both as pulmonary embolisms. There was no statistical difference in thrombosis incidence between the periods (P=0.66). The only factor associated with thrombosis was splenectomy (20% versus 0.3% in patients without thrombosis, P=0.03). There were no adverse events due to thromboprophylaxis by low-molecular-weight heparin in either period. Systematic thromboprophylaxis did not significantly reduce the incidence of thrombosis versus thromboprophylaxis based on personal thrombotic risk.
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Affiliation(s)
- R Arcani
- Department of neuromuscular diseases and Amyotrophic Lateral Sclerosis, La Timone, University Hospital of Marseille, 278 rue Saint-Pierre, 13005 Marseille, France.
| | - A-M Grapperon
- Department of neuromuscular diseases and Amyotrophic Lateral Sclerosis, La Timone, University Hospital of Marseille, 278 rue Saint-Pierre, 13005 Marseille, France
| | - G Venton
- Hematology and Cellular Therapy Department, La Conception, University Hospital of Marseille, 147, boulevard Baille, Marseille, France
| | - P Suchon
- Hematology laboratory, La Timone, University Hospital of Marseille, 278, rue Saint-Pierre, 13005 Marseille, France
| | - A Verschueren
- Department of neuromuscular diseases and Amyotrophic Lateral Sclerosis, La Timone, University Hospital of Marseille, 278 rue Saint-Pierre, 13005 Marseille, France
| | - J Bas
- Department of neuromuscular diseases and Amyotrophic Lateral Sclerosis, La Timone, University Hospital of Marseille, 278 rue Saint-Pierre, 13005 Marseille, France
| | - E Salort-Campana
- Department of neuromuscular diseases and Amyotrophic Lateral Sclerosis, La Timone, University Hospital of Marseille, 278 rue Saint-Pierre, 13005 Marseille, France
| | - S Attarian
- Department of neuromuscular diseases and Amyotrophic Lateral Sclerosis, La Timone, University Hospital of Marseille, 278 rue Saint-Pierre, 13005 Marseille, France
| | - E Delmont
- Department of neuromuscular diseases and Amyotrophic Lateral Sclerosis, La Timone, University Hospital of Marseille, 278 rue Saint-Pierre, 13005 Marseille, France
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Montolio-Chiva L, Narváez J, Morandeira F, Bas J, Marco C, González X, Alegre-Sancho JJ, Flores E, Vázquez-Gómez I, López JM, Nolla JM. AB0163 ANTI-KU ANTIBODIES: MUCH MORE THAN SCLEROMYOSITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3858] [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:Initially, anti-Ku antibodies (Ab) were described in patients with overlap syndrome with systemic sclerosis (SSc) and inflammatory myophaty (scleromyositis), although later they have been linked to a wide variety of systemic autoimmune diseases (SAD) questioning its diagnostic value. Recently, the possible existence of 2 different clinical phenotypes associated with these Ab has been described: one with myositis and high risk of intersticial lung disease (ILD) and another with positive anti-dsDNA Ab and glomerulonephritis.Objectives:To analyze the clinical relevance and the main diagnosis of a serie of patients with positive anti-Ku Ab.Methods:Descriptive observational study of patients with anti-Ku Ab in two third level hospitals between 2011 and 2019. Their determination was made at the criteria of the requesting physician.Results:Twenty-three patients (20 women) with a median age of 59 ± 14 years (range, 24-83) and a follow up time (median) of 37 months (1-208) were identified. The main clinical and analytical characteristics, as well as the final clinical diagnosis of these patients are shown in Table 1. In the cluster analysis we could not identify clinical phenotypes, perhaps because of the small sample size. Only 50% of patients with myositis developed ILD. Regarding the final diagnosis, only 1 patient (5%) was diagnosed of scleromyositis. Besides detecting them in patients with SSc (39%) and idiopathic inflammatory myopathy (9%), anti-Ku Ab were detected in other SAD, the most frequent were systemic lupus erythematosus, rheumatoid arthritis (RA) and overlap syndrome of SSc + RA.Table 1.Main clinical-analytical manifestations and final diagnosis of pacientes with anti-Ku Ab.FINAL CLINICAL DIAGNOSiSScleromyositis: 1Idiopahtic inflammatory myopathy: 1Systemic sclerosis (SSc): 6 (Pre-scleroderma: 3, limited SSc: 3).Systemic lupus erythematosus: 2Rheumatoid arthritis: 2Overlap syndrome RA + limited SSc: 2Primary Sjögren’s syndrome: 1 (Secondary Sjögren’s syndrome: 3)Mixed connective tissue disease: 1Polymyalgia rheumatica: 1Undifferentiated connective tissue disease: 1Acute hepatitis due to HEV: 1Autoimmune thrombocytopenia (ITP): 1Drug-induced fibrosing ILD: 1Systemic graft versus host disease (GVHD) in a patient with acute lymphoblastic leukemia who received and autologous haematopoietic progenitor transplant: 1Primary biliary cirrhosis: 1CLINICAL MANIFESTATIONS(patients could have more than one):Raynaud’s phenomenon: 61% (14/23).Inflammatory arthralgia/arthritis: 52% (12).Lung involvement: 30.5% (7: NSIP 3, UIP 2, other patterns 2).Serositis: 26% (6: pericarditis 4, pleuritis 1, pleuropericarditis 1).Cardiac involvement: 26% (6: PHT by echocardiogram 3, myocarditis 2, arrhytmia 1).Dry syndrome: 17% (4)Myositis: 17% (4).Esophageal involvement: 17% (4).Autoimmune cytopenias: leucolinfopenia: 17% (4) / thrombocytopenia: 13% (3).Telangiectasias: 13% (3).Photosensitivity: 13% (3).Other: non-androgenic alopecia: 9% (2); sensory-motor polyneuropathy: 4.5% (1);Puffy hands: 4.5% (1); fever: 4.5% (1); lymphadenitis: 4.5% (1); cold sores: 4.5% (1), and retinal hemorrhage: 4.5% (1).OTHER ASSOCIATED ANTIBODIES:ANA: 91% (21/23)anti Ro60/SSA Ab: 30.5% (7)Anti Ro52 Ab: 30.5% (7)Anti RNP Ab: 22% (5)Anti-dsDNA: 17% (4)Anti-La/SSB Ab: 17% (4)Anticentromer Ab: 17% (4)Anti Mi-2 Ab: 13% (3)Other: anti Sm Ab: 9% (2); anticardiolipin Ab(IgG): 4.5% (1); PM/Scl: 4.5% (1); nucleosomes: 4.5% (1); Scl70: 4.5% (1); PL12: 4.5% (1); anti-U1-RNP: 4.5% (1) and NOR90: 4.5% (1).Conclusion:Anti-Ku Ab are related to a great variety of SAD, without being a specific marker of any of them, nor being associated with any specific clinical manifestation. We couldn’t confirm the existence of clinical phenotypes associated with the presence of these antibodies.Disclosure of Interests:L Montolio-Chiva: None declared, J. Narváez: None declared, Francisco Morandeira: None declared, Jordi Bas: None declared, Carla Marco: None declared, Xavier González: None declared, Juanjo J Alegre-Sancho Consultant of: UCB, Roche, Sanofi, Boehringer, Celltrion, Paid instructor for: GSK, Speakers bureau: MSD, GSK, Lilly, Sanofi, Roche, UCB, Actelion, Pfizer, Abbvie, Novartis, Eduardo Flores: None declared, I Vázquez-Gómez: None declared, Jose María López: None declared, Joan Miquel Nolla: None declared
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Falip M, Rodriguez‐Bel L, Castañer S, Miro J, Jaraba S, Mora J, Bas J, Carreño M. Musicogenic reflex seizures in epilepsy with glutamic acid decarbocylase antibodies. Acta Neurol Scand 2018; 137:272-276. [PMID: 28766694 DOI: 10.1111/ane.12799] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Musicogenic reflex seizures (MRS) are a rare form of seizures described in patients with temporal lobe epilepsy (TLE), mainly of unknown etiology. Epilepsy with antibodies against glutamic acid decarboxylase (GAD-ab) is a form of autoimmune epilepsy for which no specific semiology has been described. AIM OF THE STUDY To retrospectively review the incidence of MRS in the general epileptic population and in the series of patients with epilepsy and GAD-ab and to describe its clinical and paraclinical characteristics. METHODS Patients recorded between January 2010 and January 2016 in the Database of Bellvitge Hospital Epilepsy Unit were reviewed. RESULTS From a group of 1510 epileptic patients, three reported MRS (0.0019%) (two patients with epilepsy and GAD-ab and one patient with cryptogenic TLE). The incidence of MRS in patients with epilepsy and GAD-ab was 2 of 22 (9%). Both patients had a normal magnetic resonance Imaging (MRI), but FDG-PET showed medial temporal lobe hypometabolism (unilateral or bilateral) in both and also in the insula in one of them. MRS (recorded via video-EEG[electroencephalography] in one patient) arose from the right temporal lobe. CONCLUSIONS MRS may be a distinctive seizure type in patients with epilepsy and antiGADab. Determination of GAD-ab should be carried out in all cases of MRS, even those with normal structural MRI.
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Affiliation(s)
- M. Falip
- Epilepsy Unit Neurology Department Hospital Universitari de Bellvitge Hospitalet de Llobregat Spain
| | - L. Rodriguez‐Bel
- IDI (Image Diagnosis Institute) PET Division Hospital de Bellvitge Hospitalet de Llobregat Spain
| | - S. Castañer
- IDI (Image Diagnosis Institute) MRI Division Hospital de Bellvitge Hospitalet de Llobregat Spain
| | - J. Miro
- Epilepsy Unit Neurology Department Hospital Universitari de Bellvitge Hospitalet de Llobregat Spain
| | - S. Jaraba
- Epilepsy Unit Neurology Department Hospital Universitari de Bellvitge Hospitalet de Llobregat Spain
| | - J. Mora
- Nuclear Medicine Hospital de Bellvitge Hospitalet de Llobregat Spain
| | - J. Bas
- Immunology Department Hospital Universitari de Bellvitge Hospitalet de Llobregat Spain
| | - M. Carreño
- Epilepsy Unit Neurology Department Hospital Clinic I Provincial de Barcelona Barcelona Spain
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Cohen M, Romero G, Bas J, Ticchioni M, Rosenthal M, Lacroix R, Brunet C, Rico A, Pelletier J, Audoin B, Lebrun C. Monitoring CD27+ memory B-cells in neuromyelitis optica spectrum disorders patients treated with rituximab: Results from a bicentric study. J Neurol Sci 2017; 373:335-338. [PMID: 28131216 DOI: 10.1016/j.jns.2017.01.025] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [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: 11/18/2016] [Revised: 12/15/2016] [Accepted: 01/06/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Rituximab (RTX) is increasingly used in the treatment of neuromyelitis optica spectrum disorder (NMO-SD). Administration regimen is not consensual as there is no reliable biomarker of RTX efficacy. In most cases, after induction, RTX is administered systematically every 6months. OBJECTIVE To assess efficacy and safety of a maintenance regimen based on CD19+ CD27+ memory B-cell (mBc) detection. METHODS We conducted a study in two French centers, including patients with NMO-SD who received an induction therapy with RTX. We compared the number of administered infusions, relapses and EDSS depending on two maintenance schemes (S1: administration of 1g RTX infusion every 6months or S2: a scheme based on regular mBc detection. 1g RTX was administered if mBc was >0.05%) RESULTS: 40 patients were included (mean age: 40.2years, F/M sex ratio: 5/1). Aquaporin-4 antibodies were positive in 75% patients. Under S1 regimen, all patients received 2 infusions per year, whereas under S2, they received 1.62 infusion per year. The mean interval between infusions under S2 was 7.4months, without decrease of clinical efficacy. CONCLUSION In our study, mBc-based administration of RTX allowed personalizing treatment administration and in several cases to lower the cumulative dose without loss of efficacy.
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Affiliation(s)
- M Cohen
- Department of Neurology, Hôpital Pasteur 2, Nice, France.
| | - G Romero
- Department of Neurology, Hôpital Pasteur 2, Nice, France
| | - J Bas
- Aix Marseille Univ, APHM, Hôpital de la Timone, Pôle de Neurosciences Cliniques, Service de Neurologie, 13005 Marseille, France
| | - M Ticchioni
- Department of Immunology, Hôpital l'Archet, Nice, France
| | - M Rosenthal
- Department of Immunology, Hôpital l'Archet, Nice, France
| | - R Lacroix
- Hematology and Vascular Biology Department, CHU La Conception, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - C Brunet
- Hematology and Vascular Biology Department, CHU La Conception, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - A Rico
- Aix Marseille Univ, APHM, Hôpital de la Timone, Pôle de Neurosciences Cliniques, Service de Neurologie, 13005 Marseille, France
| | - J Pelletier
- Aix Marseille Univ, APHM, Hôpital de la Timone, Pôle de Neurosciences Cliniques, Service de Neurologie, 13005 Marseille, France
| | - B Audoin
- Aix Marseille Univ, APHM, Hôpital de la Timone, Pôle de Neurosciences Cliniques, Service de Neurologie, 13005 Marseille, France
| | - C Lebrun
- Department of Neurology, Hôpital Pasteur 2, Nice, France
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Santacana E, Padullés N, Padullés A, Padró A, Rodríguez-Alonso L, Guardiola J, Bas J, Carreres M, Colom H. PKP-010 Impact of the RS1143634 polymorphism of interleukin 1β on infliximab exposure in crohn’s disease and ulcerative colitis patients. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Colls M, Padulles N, Padullés A, Notario J, Bas J, Sanmarti N, Colom H. PKP-012 Body surface area, cigarrete smoking and infliximab response in patients with psoriasi. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Padullés A, Padullés N, Lloberas-Blanch N, Juanola X, Narvaez FJ, Leiva E, Cobo S, Bas J, Climent J, Carrere M, Colom H. PKP-009 Evaluation of a population pharmacokinetic model of infliximab in rheumatoid arthritis for prediction of individual dosage requirements. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Romero-Pinel L, Martínez-Yélamos S, Bau L, Matas E, Gubieras L, María Pujal J, Morandeira F, Bas J, Arbizu T. Association of HLA-DRB1*15 allele and CSF oligoclonal bands in a Spanish multiple sclerosis cohort. Eur J Neurol 2011; 18:1258-62. [PMID: 21418440 DOI: 10.1111/j.1468-1331.2011.03379.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVE The HLA-DRB1*15 allele is consistently associated with multiple sclerosis (MS) susceptibility in most studied populations. This study investigated the association between HLA-DRB1 alleles and the presence of oligoclonal immunoglobulin G bands (OCB) in the cerebrospinal fluid (CSF) in a Spanish population with MS. METHODS The HLA-DRB1 typing was performed in 268 patients with sporadic MS and the detection of OCB in CSF. HLA-DRB1 allelic frequencies were compared between OCB-positive and OCB-negative patients, and both groups were also compared with 1088 unrelated healthy controls. Moreover, we correlated the various HLA-DRB1 genotypes, considering all the combinations of both parental alleles found with the presence or absence of OCB. RESULTS We found 206 OCB-positive and 62 OCB-negative patients. The HLA-DRB1*15 allele in OCB-positive patients had a higher frequency when compared with OCB-negative patients (39.3% in OCB-positive vs. 16.1% in OCB-negative, OR = 1.38 95% CI = 1.18-1.61, P < 0.001). The other alleles did not show differences. When we compared with controls, the HLA-DRB1*15 allele was associated with the disease only in the OCB-positive patients group. None of the 55 genotypes found showed any association with the presence or absence of OCB. CONCLUSIONS HLA-DRB1*15 allele is associated with OCB-positive patients with MS when studying a Spanish MS population.
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Affiliation(s)
- L Romero-Pinel
- Multiple Sclerosis Unit, Neurology Department, Hospital Universitari de Bellvitge, IDIBELL, Barcelona, Spain
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Bas J, Calopa M, Mestre M, Molleví DG, Cutillas B, Ambrosio S, Buendia E. Lymphocyte populations in Parkinson's disease and in rat models of parkinsonism. J Neuroimmunol 2001; 113:146-52. [PMID: 11137586 DOI: 10.1016/s0165-5728(00)00422-7] [Citation(s) in RCA: 186] [Impact Index Per Article: 8.1] [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: 10/17/2022]
Abstract
To assess the involvement of the immune system in Parkinson's disease we studied the phenotype of circulating lymphocytes in 30 untreated and 34 treated patients. We found a numeric decrease in helper T cells (higher in CD4(+)CD45RA(+) than in CD4(+)CD29(+)) and B cells, and a rise in activated, CD4(+)CD25(+) lymphocytes that was correlated with lymphocyte depletion. All these alterations were independent of levodopa treatment. In addition, we performed striatal dopamine depletion in rats with either MPP(+) or 6-OHDA, showing that MPP(+) but not 6-OHDA can increase CD4(+)CD25(+) lymphocytes. Thus, mechanisms other than dopamine deficit may explain the immune activation in Parkinson's disease.
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Affiliation(s)
- J Bas
- Immunology Service, Hospital Duran i Reynals, CSU de Bellvitge, Autovia de Castelldefels Km 2.7, L'Hospitalet de Llobregat, 08907 Barcelona, Catalonia, Spain.
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Affiliation(s)
- M Mestre
- Service of Immunology, CSU de Bellvitge, Barcelona, Spain
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Bas J, Mestre M, Grinyó JM, Massip E, Alsina J, Castelao AM, Corominas M, Buendia E. Peripheral blood lymphoid subsets and long-term clinical course of kidney recipients: a longitudinal study. Cytometry 1998. [PMID: 9579608 DOI: 10.1002/(sici)1097-0320(19980415)34:2<103::aid-cyto7>3.0.co;2-j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A longitudinal study of peripheral blood lymphocyte subsets was performed in 23 renal allograft recipients treated with prophylactic antilymphocyte antibodies, CsA, and steroids. At day 0 samples were obtained before transplantation (Tx), and afterwards at months +1, +3, +6, +9, +12, +24, +36, and +48. In all patients, after the depletion of lymphoid subsets during antilymphocyte antibody treatment, CD8+ lymphocytes recovered and reached higher values than those observed prior to Tx. This was mainly due to an increase in CD8+CD45RA+ lymphocytes; in contrast, the levels of "memory" CD4+ T cells and the CD4+CD62L+ subset remained low during all the follow-up period. In patients with preserved graft function (n=14) (with creatinine levels below 200 micromol/mL), the initial, relative decrease in CD4+ T cells was never reversed and the recovery of CD8+ lymphocytes started early. They also presented a peak of HLA-DR antigen expression at 1 month, not observed in those patients displaying a suboptimal graft function. At 1 month, the patients with suboptimal graft function (n=9) (with creatinine levels above 200 micromol/mL) showed higher number of CD4+ T cells, delayed recovery of CD8+ lymphocytes, and higher percentage of activated lymphocytes from month +3 on than well-functioning kidney recipients. Both CD8+ lymphocytes and HLA-DR+ T cells, found at month + 1 post-Tx, were negatively correlated with the concentration of creatinine along the follow-up. Interestingly, the mean percentage of CD4+CD25+ T cells found 36 and 48 months after Tx were positively correlated with creatinine concentration at these times. These findings indicate that variations in the distribution of lymphocyte subsets are related with a long-term graft outcome. Within the first month after Tx, a rapid recovery of CD8+ lymphocytes, but not of CD4+ T cells, and a peak of HLA-DR expression, are associated with a good graft function. In contrast, long-term expression of activation markers is related with renal dysfunction.
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Affiliation(s)
- J Bas
- Immunology Services, Ciutat Sanitària Universitària de Bellvitge, Barcelona, Catalonia, Spain
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13
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Corominas M, Mestre M, Bas J, Buendia E. Distinct modulation by interferon-gamma (IFN-gamma) of CD23 expression on B and T lymphocytes of atopic subjects. Clin Exp Immunol 1998; 112:276-80. [PMID: 9649191 PMCID: PMC1904970 DOI: 10.1046/j.1365-2249.1998.00570.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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] [Indexed: 11/20/2022] Open
Abstract
The low-affinity IgE receptor (FcepsilonRII/CD23) plays a role in IgE production. Cytokines participating in IgE synthesis also modulate CD23 expression on lymphocytes, but whether this modulation is different in atopic subjects remains unclear. We studied CD23 expression on B and T lymphocytes in 10 asthmatic patients with Dermatophagoides pteronyssinus hypersensitivity and 10 healthy non-atopic subjects. Studies were performed by flow cytometry, in phytohaemagglutinin (PHA) or IL-4-stimulated mononuclear cell cultures, alone or in the presence of IFN-gamma. Soluble CD23 (sCD23) released in the culture supernatants was measured by enzyme-linked immunoassay. Both PHA and IL-4 induced the expression of CD23 on lymphocytes of atopic and non-atopic subjects. Whereas PHA increased both the percentage and mean fluorescence intensity of CD23+ B and T cells, IL-4 alone did not increase the percentage of CD23+ T cells. The effects of IFN-gamma were different in both groups, since it was able to reduce the percentage of PHA-stimulated CD23+ T cells only in non-atopic individuals. In non-atopic subjects more than atopic, levels of sCD23 were increased in the supernatants of PHA and IL-4 cultures. These results show that the modulation of CD23 expression is different on B and T cells, and that IFN-gamma acts differently in atopic and non-atopic individuals.
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Affiliation(s)
- M Corominas
- Immunology Service, Ciutat Sanitària i Universitària de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
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14
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Bas J, Mestre M, Grinyó JM, Massip E, Alsina J, Castelao AM, Corominas M, Buendia E. Peripheral blood lymphoid subsets and long-term clinical course of kidney recipients: a longitudinal study. Cytometry 1998; 34:103-12. [PMID: 9579608 DOI: 10.1002/(sici)1097-0320(19980415)34:2<103::aid-cyto7>3.0.co;2-j] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A longitudinal study of peripheral blood lymphocyte subsets was performed in 23 renal allograft recipients treated with prophylactic antilymphocyte antibodies, CsA, and steroids. At day 0 samples were obtained before transplantation (Tx), and afterwards at months +1, +3, +6, +9, +12, +24, +36, and +48. In all patients, after the depletion of lymphoid subsets during antilymphocyte antibody treatment, CD8+ lymphocytes recovered and reached higher values than those observed prior to Tx. This was mainly due to an increase in CD8+CD45RA+ lymphocytes; in contrast, the levels of "memory" CD4+ T cells and the CD4+CD62L+ subset remained low during all the follow-up period. In patients with preserved graft function (n=14) (with creatinine levels below 200 micromol/mL), the initial, relative decrease in CD4+ T cells was never reversed and the recovery of CD8+ lymphocytes started early. They also presented a peak of HLA-DR antigen expression at 1 month, not observed in those patients displaying a suboptimal graft function. At 1 month, the patients with suboptimal graft function (n=9) (with creatinine levels above 200 micromol/mL) showed higher number of CD4+ T cells, delayed recovery of CD8+ lymphocytes, and higher percentage of activated lymphocytes from month +3 on than well-functioning kidney recipients. Both CD8+ lymphocytes and HLA-DR+ T cells, found at month + 1 post-Tx, were negatively correlated with the concentration of creatinine along the follow-up. Interestingly, the mean percentage of CD4+CD25+ T cells found 36 and 48 months after Tx were positively correlated with creatinine concentration at these times. These findings indicate that variations in the distribution of lymphocyte subsets are related with a long-term graft outcome. Within the first month after Tx, a rapid recovery of CD8+ lymphocytes, but not of CD4+ T cells, and a peak of HLA-DR expression, are associated with a good graft function. In contrast, long-term expression of activation markers is related with renal dysfunction.
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Affiliation(s)
- J Bas
- Immunology Services, Ciutat Sanitària Universitària de Bellvitge, Barcelona, Catalonia, Spain
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15
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Cruzado JM, Gil-Vernet S, Ercilla G, Seron D, Carrera M, Bas J, Torras J, Alsina J, Grinyó JM. Hepatitis C virus-associated membranoproliferative glomerulonephritis in renal allografts. J Am Soc Nephrol 1996; 7:2469-75. [PMID: 8959641 DOI: 10.1681/asn.v7112469] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In renal transplantation, chronic allograft nephropathy is the leading cause of long-term graft losses, transplant glomerulopathy being its glomerular form. Differential diagnosis from recurrent or de novo membranoproliferative glomerulonephritis should be established. Whether hepatitis C virus is associated with cryoglobulinemia and glomerular damage in renal allograft recipients, as in native kidneys, is not known. We identified six hepatitis C virus-infected renal allograft recipients with proteinuria higher than 1.5 g/day, microhematuria, and membranoproliferative glomerulonephritis. Virologic and immunologic studies were conducted. Low serum levels of circulating immune complexes and cryoglobulins were observed, which were type II immunoglobulin G polyclonal-immunoglobulin Mk monoclonal in all six patients. Classical serum complement pathway activation and at least one type of autoantibodies were present in all of them. Hepatitis C virus RNA was found in higher concentrations in cryoprecipitate than in serum (percentage of enrichment ranged from 341 to 18,200%). Hepatitis C virus genotype was 1b in 4 of 6 patients, 1a in 1 of 6 patients, and 2a in 1 of 6 patients. In renal histology prominent parietal diffuse deposition of immunoglobulin M was the rule. Glomerular subendothelial electron-dense deposits with fibrillar appearance were observed in the two patients in which electron microscopy provided information about glomeruli. In renal allograft recipients hepatitis C virus infection may be associated with type II cryoglobulinemia which may lead to membranoproliferative glomerulonephritis. Immunologic and virologic studies may help to differentiate hepatitis C virus-associated membranoproliferative glomerulonephritis from transplant glomerulopathy.
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Affiliation(s)
- J M Cruzado
- Department of Nephrology, Ciutat Sanitària i Universitària de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
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16
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Mestre M, Massip E, Bas J, Alsina J, Romeu A, Castelao AM, Buendia E, Grinyo JM. Longitudinal study of the frequency of cytotoxic T cell precursors in kidney allograft recipients. Clin Exp Immunol 1996; 104:108-14. [PMID: 8603514 PMCID: PMC2200391 DOI: 10.1046/j.1365-2249.1996.d01-657.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [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] [Indexed: 01/31/2023] Open
Abstract
Clonal deletion or inactivation of donor-specific alloreactive cells are important mechanisms that are believed to account for acquired immune tolerance in allograft recipients. Serial assessment of precursor cytotoxic T lymphocyte frequencies (CTLpf) by limiting dilution analysis (LDA) provides information at the clonal level on changes in the alloimmune response of graft recipients. We performed a longitudinal study of 15 cadaveric kidney recipients before and every 3 months throughout the first year after transplantation (Tx). Pre-Tx values of donor CTLpf showed high interindividual variability without a predictive value for the clinical outcome. All patients with well functioning kidneys had decreased CDLpf at 3 months post-Tx in comparison with pre-Tx values. This decrease was donor-specific in four patients and was permanent in two cases throughout the study. Most patients presented decreased anti-donor CTLpf values from 6 to 9 months, whereas a partial recovery of donor CTLpf was observed in three patients. Reversible acute rejection was diagnosed in three patients, and it was associated with a marked increase in anti-donor CTLpf, returning to pre-Tx values by 9 months post-Tx. In addition, one patient with chronic rejection displayed a transient increase in CDLpf 6 months after Tx. The results of this sequential study indicate the establishment of a state of either hyporesponsiveness or functional clonal inactivation, transient or permanent, which could facilitate allograft acceptance.
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Affiliation(s)
- M Mestre
- Service of Immunology, Ciutat Sanitaria i Universitaria de Bellvitge, Barcelona, Spain
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17
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Abstract
The relevance of abnormalities in the distribution of peripheral blood T lymphocyte subsets to the clinical manifestations of multiple sclerosis is not firmly established. A clinical and immunological follow-up of relapsing-remitting multiple sclerosis patients was performed in order to study the relationship of immune changes with the clinical course of the disease. Twenty patients were monitored monthly during a mean time of nine months for peripheral blood lymphocyte subsets (CD3, CD4, CD8, CD19), including the immunoregulatory subsets CD4CD29 (helper-inducer), and CD4CD25) by flow cytometry. A total of 14 untreated relapses was included. The most significant observations were a decrease in T suppressor-inducer CD4+ CD45RA+ subset during clinical relapses (P = 0.028) that was also detectable one month before (P = 0.020) and the lack of changes in CD4+ CD29+ and CD8+ T cells. In addition, variations in the percentage of CD4+ CD25+ activated T helper cells were not associated with clinical exacerbations. These results indicate the existence of a temporal association of immune changes in peripheral blood, but not activation, with the clinical manifestations of multiple sclerosis.
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Affiliation(s)
- M Calopa
- Neurology Service, Ciutat Sanitària Universitària de Bellvitge, Barcelona, Spain
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18
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Juanola X, Mateo L, Domenech P, Bas J, Contreras N, Nolla JM, Roig-Escofet D. Prevalence of antiphospholipid antibodies in patients with ankylosing spondylitis. J Rheumatol Suppl 1995; 22:1891-3. [PMID: 8991987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To establish the prevalence of antiphospholipid antibodies (aPL) in a group of patients with ankylosing spondylitis (AS). The relation of the antibodies with different clinical and analytical features was studied. METHODS Eighty-four patients with AS (71 men) and 40 age and sex matched controls were studied. aPL determinations included: anticardiolipin antibodies (aCL) of the IgM, IgG, and IgA classes, the presence of lupus anticoagulant (LAC), and a false positive serologic test for syphilis. Comparisons between variables were done by Student t test, Mann-Whitney test and Chi squared test. Correlations between aPL and clinical variables were performed by Pearson coefficients. RESULTS Twenty-four patients with AS (29%) has positive IgG aCL, compared with only 2 cases in the control group (5%) (p < 0.002). There were no differences in other aPL determinations between patients and controls. There was no correlation between the presence of aCL (IgG, IgM, or IgA) and LAC and the different aspects of the disease. Two patients fulfilled the criteria for antiphospholipid syndrome. CONCLUSION Our results indicate the presence of IgG aCL in patients with AS higher than in the normal population but their relation with thrombosis and other systemic manifestations seems weak.
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Affiliation(s)
- X Juanola
- Department of Rheumatology, Hematology, and Immunology, L'Hospitalet de Llobregat, Barcelona, Spain
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19
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Mestre M, Bas J, Massip E, Valls A, Castelao AM, Grinyó JM, Alsina J, Buendia E. Sequential study of immune mechanisms involved in graft acceptance in kidney transplantation. Transplant Proc 1995; 27:2371-3. [PMID: 7652843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- M Mestre
- Service of Immunology, Ciutat Sanitària i Universitària de Bellvitge, Barcelona, Spain
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20
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Verdaguer J, Corominas M, Bas J, Valls A, Mestre M, Romeu A, Gonzalez L, Massip E, Buendia E. IgE antibodies against bovine serum albumin in a case of eosinophilic gastroenteritis. Allergy 1993; 48:542-6. [PMID: 8238812 DOI: 10.1111/j.1398-9995.1993.tb01112.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Eosinophilic gastroenteritis is a disease characterized histologically by an eosinophilic infiltration of the gut. The cause of this disease remains unclear, although both food allergy and food intolerance have been implicated in its pathogenesis. We report the case of a 22-year-old man in whom gastrointestinal symptoms first appeared in childhood, with involvement of mucosa and muscularis layers of stomach and bowel. He presented high IgE blood levels, and his prick test was positive to bovine, pig, and lamb sera. Immunoblots from calf, pig, and lamb sera, incubated with the patient's serum and revealed by autoradiography, demonstrated the presence of a 65-kDa protein band that was recognized by IgE antibodies but not by IgG. This band corresponded to bovine serum albumin, while IgE did not show reactivity with human albumin. These data suggest a possible role for IgE-mediated hypersensitivity mechanisms in the pathogenesis of eosinophilic gastroenteritis.
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Affiliation(s)
- J Verdaguer
- Immunology Service, Hospital Duran i Reynals, Barcelona, Spain
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21
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Bas J, Mestre M, Griñó JM, Massip E, Castelao AM, Romeu A, González L, Valls A, Buendía E. In vitro donor-specific hyporesponsiveness and T cell subsets in renal allograft recipients. Allergol Immunopathol (Madr) 1993; 21:136-40. [PMID: 8237717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In order to assess the immune mechanisms triggered by an immunosuppressive regimen consisting of prophylactic antilymphocyte globulin plus low-dose cyclosporine A and steroids, we studied the short-term evolution of both, anti donor in vitro alloresponse and peripheral blood T cell subsets in 21 recipients of a cadaveric kidney allograft. Spleen cells from cadaveric donors and peripheral blood lymphocytes from the respective recipients pretransplant (pre-Tx), at three and six months posttransplant (post-Tx) were obtained to perform one-way mixed lymphocyte cultures and flow cytometry analysis of lymphocyte subsets. The results indicated the development of donor-specific mixed lymphocyte culture (MLC) hyporesponsiveness as early as three months post-Tx, paralleled by a decrease in CD4+CD29+ helper-inducer cells and by an increase in CD8+CD45RA+ suppressor lymphocytes in peripheral blood. These changes were reflected in a very good clinical outcome of the patients. The present results further suggest that suppression of the immune system just before transplantation is a suitable method to induce early specific hyporesponsiveness to the allograft.
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Affiliation(s)
- J Bas
- Immunology Service, Ciutat Sanitària Universit aria de Bellvitge, Barcelona, Spain
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22
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Corominas M, Mestre M, Bas J, Verdaguer J, Valls A, Romeu A, Buendia E. CD23 expression on B-lymphocytes and its modulation by cytokines in allergic patients. Clin Exp Allergy 1993; 23:612-7. [PMID: 8221262 DOI: 10.1111/j.1365-2222.1993.tb00902.x] [Citation(s) in RCA: 21] [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: 01/29/2023]
Abstract
The aim of this study was to assess the expression of CD23 on peripheral blood B-cells, and its in vitro modulation by recombinant human interferon-gamma (IFN-gamma) in phytohaemagglutinin-(PHA) or recombinant human interleukin-4 (IL-4)-stimulated cultures in atopic patients with Dermatophagoides pteronyssinus hypersensitivity and in healthy non-atopic subjects. Atopic patients with asthma not receiving allergen-specific immunotherapy (n = 21) were studied and further compared with a group of atopic subjects with asthma under allergen-specific immunotherapy (n = 21). They were age-(+/- 5 yr) and sex-matched. The results were also compared with those obtained in the non-atopic group (n = 11). CD23 expression on B-lymphocytes and its modulation were analyzed by flow cytometry using conjugated monoclonal antibodies with a double immunofluorescence method. Atopic patients had an increase in the percentage of B-cells expressing CD23 in peripheral blood. Phytohaemagglutinin and IL-4 induced a rise in the percentage of CD23-positive B-cells in both atopic groups and non-atopic subjects. Phytohaemagglutinin provoked an increase in the intensity of CD23 expression on B-cells from stimulated cultures in all groups, while IL-4 only produced a significant increase in atopic patients. The presence of IFN-gamma decreased the CD23 expression on B-cells in PHA-stimulated culture of atopic patients, whereas it caused an increase in CD23 expression in the non-atopic group. Furthermore, the presence of IFN-gamma in IL-4-stimulated cultures induced a decrease in CD23 expression on B-cells in all cases.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M Corominas
- Immunology Service, Hospital Duran i Reynals, Ciutat Sanitària de Bellvitge, L'Hospitalet de Llobregat Barcelona, Spain
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23
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Romeu MA, Mestre M, González L, Valls A, Verdaguer J, Corominas M, Bas J, Massip E, Buendia E. Lymphocyte immunophenotyping by flow cytometry in normal adults. Comparison of fresh whole blood lysis technique, Ficoll-Paque separation and cryopreservation. J Immunol Methods 1992; 154:7-10. [PMID: 1401946 DOI: 10.1016/0022-1759(92)90206-9] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In the present report we have assessed the extent to which Ficoll-Paque separation and cryopreservation of mononuclear cells alter the measurement of lymphocyte subsets by flow cytometry. Standard Ficoll-Paque separation increased the percentage of CD4+, CD19+ and CD4+CD45RA+ cells, as well as decreasing that of CD8+, and CD4+CD29+ cells, compared to the fresh whole blood lysis technique. Moreover, cryopreservation caused a depletion of CD4+ p80+ cells, but normal whole blood values were restored following a short incubation.
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Affiliation(s)
- M A Romeu
- Servei d'Immunologia, Hospital Duran i Reynals, Barcelona, Catalunya, Spain
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24
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Bas J, Masip E, Mestre M, Griñó JM, González C, González L, Buendia E. Donor-specific hyporesponsiveness in renal transplantation. Transplant Proc 1992; 24:76-7. [PMID: 1531717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- J Bas
- Department of Immunology, Hospital de Bellvitge Prínceps d'Espanya, Barcelona, Catalonia
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25
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Mestre M, González C, Griño JM, Valls A, Bonete J, Mané E, Corominas M, Bas J, Romeu A, Buendia E. Sequential monitoring of immunoregulatory T cell subsets in renal transplantation. Transplant Proc 1992; 24:73-5. [PMID: 1539351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- M Mestre
- Immunology Service, Hospital de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Catalonia, Spain
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26
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Sierra A, Prat J, Bas J, Romeu A, Montero J, Matos JA, Bella R, Ferrer I, Buendia E. Blood lymphocytes are sensitized to branchial plexus nerves in patients with neuralgic amyotrophy. Acta Neurol Scand 1991; 83:183-6. [PMID: 2031452 DOI: 10.1111/j.1600-0404.1991.tb04674.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The percentage of lymphocytic subsets in the blood of cases with neuralgic amyotrophy (NA), and the proliferative response of blood lymphocytes cultured with different nerve extracts, obtained from normal subjects at postmortem, were examined in 6 patients with NA and in 18 age-matched controls with shoulder pain not related to NA. Most (5/6) NA patients had decreased CD3 values and increased CD4/CD8 ratios due to a decreased of the CD8 subset. Lymphocytes of NA patients increased their blastogenic activity in cultures with nerve extracts from different brachial plexus nerves and its branches, but not in cultures with extracts of sacral plexus nerves. Cultures did not respond to nerve extracts in any of the control cases, although mitogenic activity was similarly elicited in cultured lymphocytes stimulated with phytohemagglutinin in both control cases and NA patients. These results suggest that NA is probably an immune mediated disease.
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Affiliation(s)
- A Sierra
- Immunology Service, Hospital Principes de España, Barcelona
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27
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Corominas M, Bas J, Romeu A, Valls A, Massip E, González L, Mestre M, Buendía E. Hypersensitivity reaction after orgotein (superoxide dismutase) administration. Allergol Immunopathol (Madr) 1990; 18:297-9. [PMID: 2151501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Orgotein is being increasingly used in the treatment of some inflammatory disorders. Up to now no hypersensitivity reaction has been reported. We present the case of an allergic reaction demonstrated by both, "in vivo" and "in vitro" tests. This finding further supports the need for an adequate control during and after orgotein administration.
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Affiliation(s)
- M Corominas
- Allergy Unit, Hospital de Bellvitge Princeps d'Espanya, Barcelona, Spain
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28
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Griñó JM, Bas J, Gonzalez C, Castelao AM, Seron D, Mestre M, Buendia E, Sabate R, Diaz C, Alsina J. Low incidence of rejection and in vitro donor-specific hyporesponsiveness using pretransplant ALG, low-dose cyclosporine, and steroids in kidney cadaveric transplantation. Transplant Proc 1990; 22:1367-8. [PMID: 2143855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- J M Griñó
- Department of Nephrology, University of Barcelona, Hospital de Bellvitge, L'Hospitalet de Llobregat, Spain
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29
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Cremades M, Bas J, Mayor A, Laguna P, Sanjosé L, Bruguera M. [Recombinant hepatitis B vaccine in health personnel. Immunogenicity of a rapid vaccination schedule]. Med Clin (Barc) 1989; 93:684-6. [PMID: 2532693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The immunogenic effect of a recombinant hepatitis B vaccine, administered in a dosage of 20 micrograms intramuscularly in the deltoid muscle on the months 0, 1 and 2, was evaluated in 185 employers of a general hospital. The influence of sex, age, overweight and smoking habit on the antibody response induced by the vaccine was also assessed. The seroconversion rate 40-60 days after the third dose in the 160 health professionals who completed the vaccination schedule was 88% (83% in males and 90% in females). It was 97% in individuals less than 30 years of age, 89% in those between 30 and 50 years, and 69% in those over 50 years. It was 97% in non obese and 66% in obese individuals (p less than 0.0001). No differences in seroconversion rate were found between nonsmokers, moderate smokers and heavy smokers. Untoward reactions were minimal. The rate of vaccinated individuals developing anti-HBs titers higher than 10 mIU/ml was 68%. This rate was lower than that found in most studies after vaccination in the months 0, 1 and 6, the difference being probably due to the use of a rapid schedule with a short interval between the second and third doses. Nevertheless, this schedule facilitates the vaccination programs in health staff and reduces the failure rate due to poor compliance.
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Mestre M, Bas J, Romeu A, Griñó JM, Castelao A, Sierra A, Santamaria P, Urbiztondo L, Alsina J, Buendia E. T cell monitoring in kidney transplantation. Transplant Proc 1988; 20:52-5. [PMID: 3051591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- M Mestre
- Service of Immunology, Hospital de Bellvitge Princeps d'Espanya, L'Hospitalet, Barcelona, Spain
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Armario A, Hidalgo J, Bas J, Restrepo C, Dingman A, Garvey JS. Age-dependent effects of acute and chronic intermittent stresses on serum metallothionein. Physiol Behav 1987; 39:277-9. [PMID: 3575465 DOI: 10.1016/0031-9384(87)90022-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Prepuberal and adult male rats were chronically stressed for a month with several acute stressors in a random schedule. Some of the animals were killed approximately 20 hours after the last stress session without any additional stress. Other animals from both control and chronic stress groups were subjected to an acute restraint stress for 15 min before being killed. While chronic stress did not alter hepatic metallothionein (MT) either in prepuberal or in adult rats, this treatment significantly increased serum MT levels in young but not in adult rats. Likewise, 15 min of restraint stress increased serum MT levels in young rats only, regardless of whether they were control or chronically stressed rats. The present data indicate that acute and chronic stressors may alter serum MT in an age-dependent fashion.
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Flos R, Bas J, Hidalgo J. Metallothionein in the liver of the small lizard Podarcis muralis. Comp Biochem Physiol C Comp Pharmacol Toxicol 1986; 83:93-8. [PMID: 2869914 DOI: 10.1016/0742-8413(86)90018-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A cysteine-rich protein presenting optical and biochemical features typical of metallothionein and a similar amino acid composition was found in the liver of the small lizard Podarcis muralis. Animals were given either CdCl2 (0.8 mg Cd2+/kg body wt) or saline (NaCl 0.9%) by i.p. injection for 3 days. A second group of animals were injected with a single dose of [35S]cysteine plus CdCl2 or saline. Lizard MT contained Zn and Cu when injected with saline and also Cd when injected with CdCl2. Metallothionein induction by cadmium was demonstrated by radioactive labelling.
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