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Ruiz-Cabello Subiela J, Martinez-Sepulveda T, Medina J, Varona JF, Zorita B, Fuertes B, Pastor A, Osende J, Palomo J, Castellano JM, Parra Jimenez FJ, Fernandez-Friera L, Lopez-Melgar B. Usefulness of carotid and femoral plaque burden quantification by 3-dimensional vascular ultrasound for cardiovascular risk assessment in the cardiovascular disease prevention unit. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Subclinical atherosclerosis improves cardiovascular risk assessment and is considered a risk modifier in individuals at borderline-to-intermediate estimated risk by clinical risk scores.
Purpose
We seek to propose a new decision algorithm for statin allocation based on the quantification of carotid and/or femoral atherosclerosis burden by novel 3-dimensional vascular ultrasound (3DVUS) and to explore its potential additive value when used in combination with conventional risk evaluation.
Methods
We conducted an observational study in all outpatients without previous history of cardiovascular events assessed in the Cardiovascular Disease Prevention Unit during 2017–2020. Cardiovascular risk was assessed with the ACC/AHA 10-year atherosclerotic cardiovascular disease (ASCVD) risk algorithm to establish the indication for initiating statin therapy following current clinical guidelines. All patients underwent 3DVUS evaluation for carotid plaque burden (CPB) calculated as the sum of all plaque volumes present in bilateral carotid arteries. Femoral 3DVUS evaluation was included later in the study protocol. Global plaque burden (GPB) was calculated in patients with both carotid and femoral 3DVUS as the sum of all plaque volumes present in bilateral carotid and femoral arteries. Carotid and global plaque burden was classified as high, moderate and low if a patient presented a percentile (p) >75, p50–75 and p<50, respectively, based on the age and sex-adjusted reference values reported by PESA study (1). We determined the percentage of patients reclassified for considering (p>75) or discouraging (p<50) statin therapy over clinical recommendation.
Results
One hundred sixty-three patients (age 51±8 years; 72,4% men; 10y-ASCVD 5,9%±4,8%) were included, being the most frequent reason for referral the presence of metabolic syndrome (37%), followed by intermediate or indeterminate estimated CV risk (33%), one markedly elevated single risk factor (15%) and family history of early CVD (13%). 10y-ASCVD score classified 80 (49%) patients as low-risk without recommendation for initiating statins, 18 (11%) as high-risk indicating statin therapy and 65 (40%) patients that needed clinical-patient risk discussion. Among patients under risk discussion, the CPB percentile re-stratified 51 (78%) of them, recommending statins in 26 (40%) and discouraging statins in 25 (38%). In addition, CPB re-stratified 24 (30%) low-risk patients to recommend statins. A sub-group of 114 patients additionally underwent femoral 3DVUS, and calculated GPB led to similar results of patient re-stratification (Figure).
Conclusions
Quantification of 3D atherosclerosis burden and its percentile would re-stratify a significant number of patients with intermediate risk, becoming a potentially useful tool for clinical decision making. In addition, it possibly improves the detection of low-risk patients who would benefit from statin therapy.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Dr. Lόpez-Melgar has received a grant from the Spanish Society of Cardiology “Proyecto de investigaciόn traslacional en Cardiología 2020” Patient re-stratification with CPB/GPB
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Affiliation(s)
| | | | - J Medina
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - J F Varona
- University Hospital HM Montepríncipe, Internal Medicine Department, Boadilla del Monte, Spain
| | - B Zorita
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - B Fuertes
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - A Pastor
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - J Osende
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - J Palomo
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - J M Castellano
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - F J Parra Jimenez
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
| | - L Fernandez-Friera
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiovascular Imaging Unit, Madrid, Spain
| | - B Lopez-Melgar
- HM Hospitales–Centro Integral de Enfermedades Cardiovasculares HM CIEC, Cardiology Department, Madrid, Spain
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Mackowiak C, Marchiol T, Paljetak HC, Fauconnier L, Palomo J, Secher T, Panek C, Sedda D, Savigny F, Erard F, Bragonzi A, Huaux F, Stoeger T, Schiller HB, Sirard JC, Le Bert M, Couillin I, Quesniaux VFJ, Togbe D, Ryffel B. Chronic Pseudomonas aeruginosa Lung Infection Is IL-1R Independent, but Relies on MyD88 Signaling. Immunohorizons 2021; 5:273-283. [PMID: 33958388 DOI: 10.4049/immunohorizons.2000095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 03/01/2021] [Indexed: 11/19/2022] Open
Abstract
Cystic fibrosis is associated with chronic Pseudomonas aeruginosa colonization and inflammation. The role of MyD88, the shared adapter protein of the proinflammatory TLR and IL-1R families, in chronic P. aeruginosa biofilm lung infection is unknown. We report that chronic lung infection with the clinical P. aeruginosa RP73 strain is associated with uncontrolled lung infection in complete MyD88-deficient mice with epithelial damage, inflammation, and rapid death. Then, we investigated whether alveolar or myeloid cells contribute to heightened sensitivity to infection. Using cell-specific, MyD88-deficient mice, we uncover that the MyD88 pathway in myeloid or alveolar epithelial cells is dispensable, suggesting that other cell types may control the high sensitivity of MyD88-deficient mice. By contrast, IL-1R1-deficient mice control chronic P. aeruginosa RP73 infection and IL-1β Ab blockade did not reduce host resistance. Therefore, the IL-1R1/MyD88 pathway is not involved, but other IL-1R or TLR family members need to be investigated. Our data strongly suggest that IL-1 targeted neutralizing therapies used to treat inflammatory diseases in patients unlikely reduce host resistance to chronic P. aeruginosa infection.
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Affiliation(s)
- Claire Mackowiak
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | | | - Hana Cipcic Paljetak
- Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Zagreb, Croatia
| | | | - Jennifer Palomo
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | | | - Corinne Panek
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | - Delphine Sedda
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | - Florence Savigny
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | - Francois Erard
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | | | | | - Tobias Stoeger
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg and Member of the German Center for Lung Research, Oberschleißheim, Germany
| | - Herbert B Schiller
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg and Member of the German Center for Lung Research, Oberschleißheim, Germany
| | - Jean-Claude Sirard
- Center for Infection and Immunity of Lille, Institute Pasteur and University of Lille, University Hospital Lille, CNRS, INSERM, U1019, UMR8204, Lille, France
| | - Marc Le Bert
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | - Isabelle Couillin
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | - Valerie F J Quesniaux
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | - Dieudonnée Togbe
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
| | - Bernhard Ryffel
- INEM, Experimental and Molecular Immunology and Neurogenetics, University of Orléans, CNRS, UMRP735, Orléans, France
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Goldstein JD, Bassoy EY, Caruso A, Palomo J, Rodriguez E, Lemeille S, Gabay C. IL-36 signaling in keratinocytes controls early IL-23 production in psoriasis-like dermatitis. Life Sci Alliance 2020; 3:e202000688. [PMID: 32345660 PMCID: PMC7190273 DOI: 10.26508/lsa.202000688] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 01/04/2023] Open
Abstract
IL-36R signaling plays an important role in the pathogenesis of psoriasis. We ought to assess the specific function of IL-36R in keratinocytes for the pathology of Aldara-induced psoriasis-like dermatitis. Il36r ΔK mice presenting deletion of IL-36R in keratinocytes were similarly resistant to Aldara-induced ear inflammation as Il36r -/- mice, but acanthosis was only prevented in Il36r -/- mice. FACS analysis revealed that IL-36R signaling in keratinocytes is mandatory for early neutrophil infiltration in Aldara-treated ears. RNASeq and qRT-PCR experiments demonstrated the crucial role of IL-36R signaling in keratinocytes for induction of IL-23, IL-17, and IL-22 at early time points. Taken together, our results demonstrate that IL-36R signaling in keratinocytes plays a major role in the induction of Aldara-induced psoriasis-like dermatitis by triggering early production of IL-23/IL-17/IL-22 cytokines and neutrophil infiltration.
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Affiliation(s)
- Jérémie D Goldstein
- Department of Pathology-Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Esen Y Bassoy
- Department of Pathology-Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Assunta Caruso
- Department of Pathology-Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Jennifer Palomo
- Department of Pathology-Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Emiliana Rodriguez
- Department of Pathology-Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Sylvain Lemeille
- Department of Pathology-Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Cem Gabay
- Department of Pathology-Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
- Division of Rheumatology, Department of Medicine, University Hospitals of Geneva, Geneva, Switzerland
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4
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Martin P, Palmer G, Rodriguez E, Palomo J, Lemeille S, Goldstein J, Gabay C. Intracellular IL-1 Receptor Antagonist Isoform 1 Released from Keratinocytes upon Cell Death Acts as an Inhibitor for the Alarmin IL-1α. J Immunol 2020; 204:967-979. [PMID: 31932497 DOI: 10.4049/jimmunol.1901074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/25/2019] [Indexed: 01/26/2023]
Abstract
The inflammatory effects of IL-1α/β are controlled by IL-1R antagonist (IL-1Ra). One IL-1Ra isoform is secreted, whereas three other isoforms (intracellular IL-1Ra [icIL-1Ra] 1, 2, and 3) are supposed to remain intracellular because of the absence of a signal peptide. In contrast to the well-characterized function of the secreted isoform, the biological role of the intracellular isoforms remains largely unclear. icIL-1Ra1 represents the major isoform in keratinocytes. We created icIL-1Ra1-/- mice and investigated the role of icIL-1Ra1 in Aldara (5% imiquimod)-induced psoriasis-like skin inflammation. Naive icIL-1Ra1-/- mice bred habitually and exhibited a normal phenotype. icIL-1Ra1 deficiency aggravated Aldara-induced skin inflammation, as demonstrated by increased ear thickness and increased mRNA levels of key proinflammatory cytokines. No intracellular effect of icIL-1Ra1 could be detected in isolated keratinocytes using RNA-sequencing analysis; however, Aldara treatment led to caspase 1/11-, caspase 8-, and RIPK3-independent keratinocyte cell death accompanied by the release of both icIL-1Ra1 and IL-1α. Furthermore, blocking IL-1α attenuated the clinical severity of Aldara-induced ear thickening in icIL-1Ra1-/- mice. Our data suggest that upon keratinocyte damage icIL-1Ra1 acts extracellularly as an antagonist of the alarmin IL-1α to immediately counteract its inflammatory effects.
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Affiliation(s)
- Praxedis Martin
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; and.,Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals, 1211 Geneva 4, Switzerland
| | - Gaby Palmer
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; and.,Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals, 1211 Geneva 4, Switzerland
| | - Emiliana Rodriguez
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; and.,Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals, 1211 Geneva 4, Switzerland
| | - Jennifer Palomo
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; and.,Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals, 1211 Geneva 4, Switzerland
| | - Sylvain Lemeille
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; and
| | - Jérémie Goldstein
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; and.,Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals, 1211 Geneva 4, Switzerland
| | - Cem Gabay
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; and .,Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals, 1211 Geneva 4, Switzerland
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Beck M, Plötzing T, Maussang K, Palomo J, Colombelli R, Sagnes I, Mangeney J, Tignon J, Dhillon SS, Klatt G, Bartels A. High-speed THz spectroscopic imaging at ten kilohertz pixel rate with amplitude and phase contrast. Opt Express 2019; 27:10866-10872. [PMID: 31052940 DOI: 10.1364/oe.27.010866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/28/2019] [Indexed: 06/09/2023]
Abstract
By combining the advantages of the high-speed ASOPS technology and efficient THz generation, we have realized a high-speed laser-based spectroscopic THz imaging system with more than 10,000 pixels per second acquisition speed and an excellent signal-to-noise ratio of more than 100. Unlike THz line cameras or mm-wave intensity detectors, the present device allows for a much higher spatial resolution and attributes each imaging pixel with phase and amplitude information up to several THz while simultaneously maintaining a very high scanning speed unmatched by any other technique presented so far. The high-speed acquisition allows for samples to be scanned even at sample velocities of 5 m/s or higher while preserving the fundamental resolution limit of the THz radiation, which is on the order of 500 µm in the present case.
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6
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Palomo J, Quesniaux VFJ, Togbe D, Reverchon F, Ryffel B. Unravelling the roles of innate lymphoid cells in cerebral malaria pathogenesis. Parasite Immunol 2019; 40. [PMID: 29117626 DOI: 10.1111/pim.12502] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 10/31/2017] [Indexed: 12/17/2022]
Abstract
Cerebral malaria (CM) is one complication of Plasmodium parasite infection that can lead to strong inflammatory immune responses in the central nervous system (CNS), accompanied by lung inflammation and anaemia. Here, we focus on the role of the innate immune response in experimental cerebral malaria (ECM) caused by blood-stage murine Plasmodium berghei ANKA infection. While T cells are important for ECM pathogenesis, the role of innate lymphoid cells (ILCs) is only emerging. The role of ILCs and non-lymphoid cells, such as neutrophils and platelets, contributing to the host immune response and leading to ECM and human cerebral malaria (HCM) is reviewed.
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Affiliation(s)
- J Palomo
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS, University of Orleans, Orleans-Cedex2, France.,Division of Rheumatology, Departments of Internal Medicine Specialties and of Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - V F J Quesniaux
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS, University of Orleans, Orleans-Cedex2, France
| | - D Togbe
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS, University of Orleans, Orleans-Cedex2, France.,Artimmune SAS, Orléans, France
| | - F Reverchon
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS, University of Orleans, Orleans-Cedex2, France
| | - B Ryffel
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS, University of Orleans, Orleans-Cedex2, France.,IDM, Medical School, University of Cape Town, Cape Town, Republic of South Africa
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7
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Elshebiny T, Palomo J, Pugliese F, Strohl K. 0512 Velopharynx and Oropharynx Dimension Changes with Stimulation and Positive Pressure. Sleep 2018. [DOI: 10.1093/sleep/zsy061.511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Elshebiny
- Case Western Reserve University, Beachwood, OH
| | - J Palomo
- Case Western, Case Western Reserve University, OH
| | - F Pugliese
- Case Western, Case Western Reserve University, OH
| | - k Strohl
- Case Western, Case Western Reserve University, OH
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8
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Palomo J, Troccaz S, Talabot-Ayer D, Rodriguez E, Palmer G. The severity of imiquimod-induced mouse skin inflammation is independent of endogenous IL-38 expression. PLoS One 2018; 13:e0194667. [PMID: 29554104 PMCID: PMC5858842 DOI: 10.1371/journal.pone.0194667] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 03/07/2018] [Indexed: 11/18/2022] Open
Abstract
The IL-1 cytokine family includes eleven members, among which Il-36α, β and γ, IL-36Ra and IL-38. The IL-36 cytokines are involved in the pathogenesis of psoriasis. IL-38 is also expressed in the skin and was previously proposed to act as an IL-36 antagonist. In this study, we thus examined expression and function of Il-38 in a mouse model of imiquimod (IMQ)-induced skin inflammation. Il-38 mRNA was detected in the epidermis and in primary mouse keratinocytes, but not in dermal fibroblasts. At the peak of IMQ-induced inflammation, skin Il-38 mRNA levels were reduced, whereas Il-36ra mRNA expression increased. The severity of IMQ-induced skin inflammation, as assessed by recording ear thickness and histological changes, was similar in Il-38 KO and WT littermate control mice, while, in contrast, Il-36ra-deficient mice displayed more severe skin pathology than their WT littermates. Il-38-deficiency had no impact on IMQ-induced expression of proinflammatory mediators in the skin in vivo, on the basal expression of various cytokines or chemokines by cultured primary keratinocytes and dermal fibroblasts in vitro, or on the response of these cells to Il-36β. Finally, after cessation of topical IMQ application, the resolution of skin inflammation was also not altered in Il-38 KO mice. In conclusion, Il-38-deficiency did not impact the development or resolution of IMQ-induced skin inflammation. Our observations further suggest that endogenous Il-38 does not exert Il-36 inhibitory activity in this model, or in cultured skin cells. A potential anti-inflammatory function of Il-38 in mouse skin thus still remains to be demonstrated.
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Affiliation(s)
- Jennifer Palomo
- Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals of Geneva, Geneva, Switzerland
- Department of Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - Sabina Troccaz
- Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals of Geneva, Geneva, Switzerland
- Department of Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - Dominique Talabot-Ayer
- Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals of Geneva, Geneva, Switzerland
- Department of Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - Emiliana Rodriguez
- Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals of Geneva, Geneva, Switzerland
- Department of Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - Gaby Palmer
- Division of Rheumatology, Department of Internal Medicine Specialties, University Hospitals of Geneva, Geneva, Switzerland
- Department of Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
- * E-mail:
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Rosso A, Aragón P, Acevedo F, Doadrio I, García-Barros E, Lobo JM, Munguira ML, Monserrat VJ, Palomo J, Pleguezuelos JM, Romo H, Triviño V, Sánchez-Fernández D. Effectiveness of the Natura 2000 network in protecting Iberian endemic fauna. Anim Conserv 2017. [DOI: 10.1111/acv.12387] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- A. Rosso
- Universidad Pablo de Olavide; Sevilla Spain
| | - P. Aragón
- Departamento de Biogeografía y Cambio Global; Museo Nacional de Ciencias Naturales (CSIC); Madrid Spain
| | - F. Acevedo
- Departamento de Zoología y Antropología Física; Universidad Complutense de Madrid; Madrid Spain
| | - I. Doadrio
- Departamento de Biogeografía y Cambio Global; Museo Nacional de Ciencias Naturales (CSIC); Madrid Spain
| | - E. García-Barros
- Departamento de Biología; Universidad Autónoma de Madrid; Madrid Spain
| | - J. M. Lobo
- Departamento de Biogeografía y Cambio Global; Museo Nacional de Ciencias Naturales (CSIC); Madrid Spain
| | - M. L. Munguira
- Departamento de Biología; Universidad Autónoma de Madrid; Madrid Spain
| | - V. J. Monserrat
- Departamento de Zoología y Antropología Física; Universidad Complutense de Madrid; Madrid Spain
| | - J. Palomo
- Departamento de Biología Animal; Universidad de Málaga; Malaga Spain
| | | | - H. Romo
- Departamento de Biología; Universidad Autónoma de Madrid; Madrid Spain
| | - V. Triviño
- Instituto de Ciencias Ambientales; Universidad de Castilla-La Mancha; Campus Tecnológico de la Fábrica de Armas; Toledo Spain
| | - D. Sánchez-Fernández
- Instituto de Ciencias Ambientales; Universidad de Castilla-La Mancha; Campus Tecnológico de la Fábrica de Armas; Toledo Spain
- Departamento de Ecología de Humedales; Estación Biológica de Doñana (CSIC); Americo Vespucio; Sevilla Spain
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Elshebiny T, Strohl K, Palomo J. 0507 EFFECT ON RETRO-PALATAL AND RETRO-GLOSSAL DIMENSIONS WITH PRESSURE FORCING COMPARING TO HYPOGLOSSAL NERVE STIMULATION. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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11
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Martin P, Palmer G, Rodriguez E, Seemayer CA, Palomo J, Talabot-Ayer D, Gabay C. Deficiency in IL-1 Receptor Type 2 Aggravates K/BxN Serum Transfer-Induced Arthritis in Mice but Has No Impact on Systemic Inflammatory Responses. J Immunol 2017; 198:2916-2926. [PMID: 28235865 DOI: 10.4049/jimmunol.1600855] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 01/30/2017] [Indexed: 01/27/2023]
Abstract
The biological activity of IL-1 is tightly regulated by the specific receptor antagonist (IL-1Ra) and the decoy receptor IL-1 receptor type 2 (IL-1R2). The role of IL-1Ra has been well demonstrated in IL-1Ra-deficient mice. In contrast, the role of endogenous IL-1R2 remains widely unknown. To define the functional role of endogenous IL-1R2 in the K/BxN serum transfer arthritis model and in IL-1β- or LPS-induced systemic inflammation in vivo, IL-1R2-/- mice were created and compared with wild type mice. IL-1R2-/- mice bred habitually and exhibited a normal phenotype. IL-1R2 deficiency aggravated arthritis severity and increased mRNA levels for key cytokines and chemokines such as IL-6, IL-1β, Cxcl-1, and Cxcl-2 significantly in ankles. There was no effect of IL-1R2 deficiency on the cell-autonomous cytokine response to IL-1β in the tested cell types, i.e., neutrophils, macrophages, and fibroblasts, but IL-1R2 deficiency on neutrophils increased the IL-1-induced response of fibroblasts in trans. Furthermore, IL-1β induced shedding of IL-1R2 in vivo. Inflammatory responses to IL-1β and LPS-induced mortality were not different in IL-1R2-/- compared with wild type mice. Our data demonstrate that the decoy receptor IL-1R2 plays an important inhibitory role in local IL-1- and neutrophil-dependent tissue inflammation as shown in the K/BxN serum transfer arthritis model. In contrast to IL-1Ra, IL-1R2 appears to be less crucial for systemic responses to acute administration of IL-1 or LPS.
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Affiliation(s)
- Praxedis Martin
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland.,Division of Rheumatology, University Hospital of Geneva, 1211 Geneva 4, Switzerland; and
| | - Gaby Palmer
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland.,Division of Rheumatology, University Hospital of Geneva, 1211 Geneva 4, Switzerland; and
| | - Emiliana Rodriguez
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland.,Division of Rheumatology, University Hospital of Geneva, 1211 Geneva 4, Switzerland; and
| | | | - Jennifer Palomo
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland.,Division of Rheumatology, University Hospital of Geneva, 1211 Geneva 4, Switzerland; and
| | - Dominique Talabot-Ayer
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland.,Division of Rheumatology, University Hospital of Geneva, 1211 Geneva 4, Switzerland; and
| | - Cem Gabay
- Department of Pathology and Immunology, School of Medicine, University of Geneva, 1211 Geneva 4, Switzerland; .,Division of Rheumatology, University Hospital of Geneva, 1211 Geneva 4, Switzerland; and
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12
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Agoro R, Piotet-Morin J, Palomo J, Michaudel C, Vigne S, Maillet I, Chenuet P, Guillou N, Le Bérichel J, Kisielow M, Flodby P, Borok Z, Crandall ED, Le Bert M, Quesniaux V, Muller M, Di Padova F, Ryffel B, Gabay C, Couturier-Maillard A. IL-1R1-MyD88 axis elicits papain-induced lung inflammation. Eur J Immunol 2016; 46:2531-2541. [PMID: 27569535 DOI: 10.1002/eji.201646366] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 06/27/2016] [Accepted: 08/24/2016] [Indexed: 12/13/2022]
Abstract
Allergic asthma is characterized by a strong Th2 response with inflammatory cell recruitment and structural changes in the lung. Papain is a protease allergen disrupting the airway epithelium triggering a rapid inflammation with eosinophilia mediated by innate lymphoid cell activation (ILC2) and leading to a Th2 immune response. In this study, we focused on inflammatory responses to a single exposure to papain and showed that intranasal administration of papain results in the recruitment of inflammatory cells, including neutrophils and eosinophils with a rapid production of IL-1α, IL-1β, and IL-33. The inflammatory response is abrogated in the absence of IL-1R1 and MyD88. To decipher the cell type(s) involved in MyD88-dependent IL-1R1/MyD88 signaling, we used new cell-specific MyD88-deficient mice and found that the deletion of MyD88 signaling in single cell types such as T cells, epithelial cells, CD11c-positive or myeloid cells leads to only a partial inhibition compared to complete absence of MyD88, suggesting that several cell types contribute to the response. Importantly, the inflammatory response is largely ST2 and IL-36R independent. In conclusion, IL-1R1 signaling via MyD88 is critical for the first step of inflammatory response to papain.
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Affiliation(s)
- Rafiou Agoro
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Julie Piotet-Morin
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Jennifer Palomo
- Division of Rheumatology, Departments of Internal Medicine Specialties and Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - Chloé Michaudel
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Solenne Vigne
- Division of Rheumatology, Departments of Internal Medicine Specialties and Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - Isabelle Maillet
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Pauline Chenuet
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Noëlline Guillou
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Jessica Le Bérichel
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | | | - Per Flodby
- Division of Pulmonary, Critical Care and Sleep Medicine, Keck School of Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Zea Borok
- Division of Pulmonary, Critical Care and Sleep Medicine, Keck School of Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Edward D Crandall
- Division of Pulmonary, Critical Care and Sleep Medicine, Keck School of Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Marc Le Bert
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Valérie Quesniaux
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Matthias Muller
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - Bernhard Ryffel
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa
| | - Cem Gabay
- Division of Rheumatology, Departments of Internal Medicine Specialties and Pathology-Immunology, University of Geneva School of Medicine, Geneva, Switzerland
| | - Aurélie Couturier-Maillard
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, CNRS, UMR7355, Orleans, France. .,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, Republic of South Africa.
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13
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Palomo J, Mastelic-Gavillet B, Woldt E, Troccaz S, Rodriguez E, Palmer G, Siegrist CA, Gabay C. IL-36–Induced Toxicity in Neonatal Mice Involves TNF-α Production by Liver Myeloid Cells. J I 2016; 197:2239-49. [DOI: 10.4049/jimmunol.1600700] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/14/2016] [Indexed: 02/06/2023]
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14
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Baillergeau M, Maussang K, Nirrengarten T, Palomo J, Li LH, Linfield EH, Davies AG, Dhillon S, Tignon J, Mangeney J. Diffraction-limited ultrabroadband terahertz spectroscopy. Sci Rep 2016; 6:24811. [PMID: 27142959 PMCID: PMC4855139 DOI: 10.1038/srep24811] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 04/05/2016] [Indexed: 11/09/2022] Open
Abstract
Diffraction is the ultimate limit at which details of objects can be resolved in conventional optical spectroscopy and imaging systems. In the THz spectral range, spectroscopy systems increasingly rely on ultra-broadband radiation (extending over more 5 octaves) making a great challenge to reach resolution limited by diffraction. Here, we propose an original easy-to-implement wavefront manipulation concept to achieve ultrabroadband THz spectroscopy system with diffraction-limited resolution. Applying this concept to a large-area photoconductive emitter, we demonstrate diffraction-limited ultra-broadband spectroscopy system up to 14.5 THz with a dynamic range of 10(3). The strong focusing of ultrabroadband THz radiation provided by our approach is essential for investigating single micrometer-scale objects such as graphene flakes or living cells, and besides for achieving intense ultra-broadband THz electric fields.
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Affiliation(s)
- M Baillergeau
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75231 Paris Cedex 05, France
| | - K Maussang
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75231 Paris Cedex 05, France
| | - T Nirrengarten
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75231 Paris Cedex 05, France
| | - J Palomo
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75231 Paris Cedex 05, France
| | - L H Li
- School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS29JT, UK
| | - E H Linfield
- School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS29JT, UK
| | - A G Davies
- School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS29JT, UK
| | - S Dhillon
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75231 Paris Cedex 05, France
| | - J Tignon
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75231 Paris Cedex 05, France
| | - J Mangeney
- Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR 8551), Université P. et M. Curie, Université D. Diderot, 75231 Paris Cedex 05, France
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15
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Delgado JF, Alonso-Pulpón L, Mirabet S, Almenar L, Villa FP, González-Vílchez F, Palomo J, Blasco T, Dolores García-Cosio M, González-Costello J, de la Fuente L, Rábago G, Lage E, Pascual D, Molina BD, Arizón JM, Muñiz J, Crespo-Leiro MG. Cancer Incidence in Heart Transplant Recipients With Previous Neoplasia History. Am J Transplant 2016; 16:1569-78. [PMID: 26613555 DOI: 10.1111/ajt.13637] [Citation(s) in RCA: 11] [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] [Received: 10/14/2015] [Revised: 10/14/2015] [Accepted: 11/15/2015] [Indexed: 01/25/2023]
Abstract
Neoplasm history increases morbidity and mortality after solid organ transplantation and has disqualified patients from transplantation. Studies are needed to identify factors to be considered when deciding on the suitability of a patient with previous tumor for heart transplantation. A retrospective epidemiological study was conducted in heart transplant (HT) recipients (Spanish Post-Heart Transplant Tumor Registry) comparing the epidemiological data, immu-nosuppressive treatments and incidence of post-HT tumors between patients with previous malignant noncardiac tumor and with no previous tumor (NPT). The impact of previous tumor (PT) on overall survival (OS) was also assessed. A total of 4561 patients, 77 PT and 4484 NPT, were evaluated. The NPT group had a higher proportion of men than the PT group (p < 0.001). The incidence of post-HT tumors was 1.8 times greater in the PT group (95% confidence interval [CI] 1.2-2.6; p < 0.001), mainly due to the increased risk in patients with a previous hematologic tumor (rate ratio 2.3, 95% CI 1.3-4.0, p < 0.004). OS during the 10-year posttransplant period was significantly lower in the PT than the NPT group (p = 0.048) but similar when the analysis was conducted after a first post-HT tumor was diagnosed. In conclusion, a history of PT increases the incidence of post-HT tumors and should be taken into account when considering a patient for HT.
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Affiliation(s)
- J F Delgado
- Hospital Universitario 12 de Octubre, Madrid, Spain
| | | | - S Mirabet
- Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | - L Almenar
- Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - F P Villa
- Hospital Clínic i Provincial, Barcelona, Spain
| | | | - J Palomo
- Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - T Blasco
- Hospital Universitario Miguel Servet, Zaragoza, Spain
| | | | | | - L de la Fuente
- Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - G Rábago
- Clínica Universidad de Navarra, Pamplona, Spain
| | - E Lage
- Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - D Pascual
- Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
| | - B D Molina
- Hospital Universitario Central de Asturias, Oviedo, Spain
| | - J M Arizón
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - J Muñiz
- Instituto Universitario de Ciencias de la Salud, Instituto de Investigación Biomédica de A Coruña (INIBIC), Universidade da Coruña, La Coruña, Spain
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16
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Palomo J, Mastelic-Gavillet B, Wolt E, Rodriguez E, Siegrist CA, Palmer G, Gabay C. ID: 129. Cytokine 2015. [DOI: 10.1016/j.cyto.2015.08.156] [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: 10/23/2022]
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17
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Palomo J, Dietrich D, Martin P, Palmer G, Gabay C. The interleukin (IL)-1 cytokine family--Balance between agonists and antagonists in inflammatory diseases. Cytokine 2015; 76:25-37. [PMID: 26185894 DOI: 10.1016/j.cyto.2015.06.017] [Citation(s) in RCA: 300] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 06/29/2015] [Indexed: 12/14/2022]
Abstract
The interleukin (IL)-1 family of cytokines comprises 11 members, including 7 pro-inflammatory agonists (IL-1α, IL-1β, IL-18, IL-33, IL-36α, IL-36β, IL-36γ) and 4 defined or putative antagonists (IL-1R antagonist (IL-1Ra), IL-36Ra, IL-37, and IL-38) exerting anti-inflammatory activities. Except for IL-1Ra, IL-1 cytokines do not possess a leader sequence and are secreted via an unconventional pathway. In addition, IL-1β and IL-18 are produced as biologically inert pro-peptides that require cleavage by caspase-1 in their N-terminal region to generate active proteins. N-terminal processing is also required for full activity of IL-36 cytokines. The IL-1 receptor (IL-1R) family comprises 10 members and includes cytokine-specific receptors, co-receptors and inhibitory receptors. The signaling IL-1Rs share a common structure with three extracellular immunoglobulin (Ig) domains and an intracellular Toll-like/IL-1R (TIR) domain. IL-1 cytokines bind to their specific receptor, which leads to the recruitment of a co-receptor and intracellular signaling. IL-1 cytokines induce potent inflammatory responses and their activity is tightly controlled at the level of production, protein processing and maturation, receptor binding and post-receptor signaling by naturally occurring inhibitors. Some of these inhibitors are IL-1 family antagonists, while others are IL-1R family members acting as membrane-bound or soluble decoy receptors. An imbalance between agonist and antagonist levels can lead to exaggerated inflammatory responses. Several genetic modifications or mutations associated with dysregulated IL-1 activity and autoinflammatory disorders were identified in mouse models and in patients. These findings paved the road to the successful use of IL-1 inhibitors in diseases that were previously considered as untreatable.
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Affiliation(s)
- Jennifer Palomo
- Division of Rheumatology, Departments of Internal Medicine Specialties and of Pathology-Immunology, University of Geneva School of Medicine, Switzerland
| | - Damien Dietrich
- Division of Rheumatology, Departments of Internal Medicine Specialties and of Pathology-Immunology, University of Geneva School of Medicine, Switzerland
| | - Praxedis Martin
- Division of Rheumatology, Departments of Internal Medicine Specialties and of Pathology-Immunology, University of Geneva School of Medicine, Switzerland
| | - Gaby Palmer
- Division of Rheumatology, Departments of Internal Medicine Specialties and of Pathology-Immunology, University of Geneva School of Medicine, Switzerland
| | - Cem Gabay
- Division of Rheumatology, Departments of Internal Medicine Specialties and of Pathology-Immunology, University of Geneva School of Medicine, Switzerland.
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18
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Carbone J, Diez P, Fernandez-Yañez J, Palomo J, Muñoz P, Hortal J, Sarmiento E. Personalized Therapeutic Use of Intravenous Immunoglobulin in Heart Recipients With Severe Infections and IgG Hypogammaglobulinemia: Impact on Clinical Outcomes. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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19
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Carbone J, Calahorra L, Diez P, Palomo J, Fernandez-Yanez J, Sarmiento E. Pretransplant Serum BAFF in Heart Transplantation: A Potential New Biomarker for Acute Cellular Rejection Risk. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.351] [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: 11/27/2022] Open
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20
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Gonzalez Vilchez F, Crespo-Leiro M, Palomo J, Mirabet S, Diaz Molina B, Almenar L, Arizon J, Rangel D, Perez Villa F, Delgado J, Garrido I, de la Fuente L, Gomez Bueno M, Sanz M. Multicentre Study to Evaluate Conversion From Standard-Release Tacrolimus (SRT) to Extended-Release Tacrolimus (ERT) in a Large Series of Heart Transplanted Patients. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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21
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Carbone J, Arraya M, Lozano F, Palomo J, Sarmiento E. Mannose-Binding Lectin Serum Levels and Pre-Tranplant Genotypes for Personalized Anti-CMV Prophylaxis in Heart Recipients. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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22
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Palomo J, Reverchon F, Piotet J, Besnard AG, Couturier-Maillard A, Maillet I, Tefit M, Erard F, Mazier D, Ryffel B, Quesniaux VFJ. Critical role of IL-33 receptor ST2 in experimental cerebral malaria development. Eur J Immunol 2015; 45:1354-65. [PMID: 25682948 DOI: 10.1002/eji.201445206] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 01/19/2015] [Accepted: 02/11/2015] [Indexed: 11/11/2022]
Abstract
Cerebral malaria, a severe complication of Plasmodium falciparum infection, can be modeled in murine Plasmodium berghei ANKA (PbA) infection. PbA-induced experimental cerebral malaria (ECM) is CD8(+) T-cell mediated, and influenced by TH 1/TH 2 balance. Here, we show that IL-33 expression is increased in brain undergoing ECM and we address the role of the IL-33/ST2 pathway in ECM development. ST2-deficient mice were resistant to PbA-induced neuropathology. They survived >20 days with no ECM neurological sign and a preserved cerebral microcirculation, while WT mice succumbed within 10 days with ECM, brain vascular leakage, distinct microvascular pathology obstruction, and hemorrhages. Parasitemia and brain parasite load were similar in ST2-deficient and WT mice. Protection was accompanied by reduced brain sequestration of activated CD4(+) T cells and perforin(+) CD8(+) T cells. While IFN-γ and T-cell-attracting chemokines CXCL9 and CXCL10 were not affected in the absence of functional ST2 pathway, the local expression of ICAM-1, CXCR3, and LT-α, crucial for ECM development, was strongly reduced, and this may explain the diminished pathogenic T-cell recruitment and resistance to ECM. Therefore, IL-33 is induced in PbA sporozoite infection, and the pathogenic T-cell responses with local microvascular pathology are dependent on IL-33/ST2 signaling, identifying IL-33 as a new actor in ECM development.
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Affiliation(s)
- Jennifer Palomo
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Flora Reverchon
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Julie Piotet
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Anne-Gaelle Besnard
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Aurélie Couturier-Maillard
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Isabelle Maillet
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Maurel Tefit
- CIMI-Paris (UPMC UMRS CR7, Inserm U1135, CNRS ERL 8255), Paris, France
| | - François Erard
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Dominique Mazier
- CIMI-Paris (UPMC UMRS CR7, Inserm U1135, CNRS ERL 8255), Paris, France.,Groupe Hospitalier Pitié-Salpêtrière Service Parasitologie-Mycologie, Paris, France
| | - Bernhard Ryffel
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
| | - Valérie F J Quesniaux
- CNRS, UMR7355, Orleans, France.,Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France
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23
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Sarmiento E, Arraya M, Jaramillo M, Diez P, Fernandez-Yañez J, Palomo J, Navarro J, Carbone J. Intravenous immunoglobulin as an intervention strategy of risk factor modification for prevention of severe infection in heart transplantation. Clin Exp Immunol 2015; 178 Suppl 1:156-8. [PMID: 25546803 DOI: 10.1111/cei.12552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- E Sarmiento
- Transplant Immunology Group, Clinical Immunology Department, Hospital General Universitario Gregorio Marañon, Madrid, Spain
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24
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Palomo J, Marchiol T, Piotet J, Fauconnier L, Robinet M, Reverchon F, Le Bert M, Togbe D, Buijs-Offerman R, Stolarczyk M, Quesniaux VFJ, Scholte BJ, Ryffel B. Role of IL-1β in experimental cystic fibrosis upon P. aeruginosa infection. PLoS One 2014; 9:e114884. [PMID: 25500839 PMCID: PMC4264861 DOI: 10.1371/journal.pone.0114884] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 11/14/2014] [Indexed: 11/18/2022] Open
Abstract
Cystic fibrosis is associated with increased inflammatory responses to pathogen challenge. Here we revisited the role of IL-1β in lung pathology using the experimental F508del-CFTR murine model on C57BL/6 genetic background (Cftr(tm1eur) or d/d), on double deficient for d/d and type 1 interleukin-1 receptor (d/d X IL-1R1-/-), and antibody neutralization. At steady state, young adult d/d mice did not show any signs of spontaneous lung inflammation. However, IL-1R1 deficiency conferred partial protection to repeated P. aeruginosa endotoxins/LPS lung instillation in d/d mice, as 50% of d/d mice succumbed to inflammation, whereas all d/d x IL-1R1-/- double mutants survived with lower initial weight loss and less pulmonary collagen and mucus production, suggesting that the absence of IL-1R1 signaling is protective in d/d mice in LPS-induced lung damage. Using P. aeruginosa acute lung infection we found heightened neutrophil recruitment in d/d mice with higher epithelial damage, increased bacterial load in BALF, and augmented IL-1β and TNF-α in parenchyma as compared to WT mice. Thus, F508del-CFTR mice show enhanced IL-1β signaling in response to P. aeruginosa. IL-1β antibody neutralization had no effect on lung homeostasis in either d/d or WT mice, however P. aeruginosa induced lung inflammation and bacterial load were diminished by IL-1β antibody neutralization. In conclusion, enhanced susceptibility to P. aeruginosa in d/d mice correlates with an excessive inflammation and with increased IL-1β production and reduced bacterial clearance. Further, we show that neutralization of IL-1β in d/d mice through the double mutation d/d x IL-1R1-/- and in WT via antibody neutralization attenuates inflammation. This supports the notion that intervention in the IL-1R1/IL-1β pathway may be detrimental in CF patients.
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Affiliation(s)
- Jennifer Palomo
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics, University of Orléans, Orléans, France
| | | | - Julie Piotet
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics, University of Orléans, Orléans, France
| | | | | | - Flora Reverchon
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics, University of Orléans, Orléans, France
| | | | | | | | | | - Valérie F. J. Quesniaux
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics, University of Orléans, Orléans, France
| | - Bob J. Scholte
- Erasmus MC, Cell Biology department, Rotterdam, The Netherlands
- * E-mail: (BS); (BR)
| | - Bernhard Ryffel
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics, University of Orléans, Orléans, France
- Institute of Infectious Disease and Molecular Medicine, IDM, Cape Town, South Africa
- * E-mail: (BS); (BR)
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25
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Sarmiento E, Navarro J, Fernandez-Yañez J, Palomo J, Muñoz P, Carbone J. Evaluation of an immunological score to assess the risk of severe infection in heart recipients. Transpl Infect Dis 2014; 16:802-12. [PMID: 25179534 DOI: 10.1111/tid.12284] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 03/14/2014] [Accepted: 06/18/2014] [Indexed: 01/27/2023]
Abstract
BACKGROUND We previously reported how specific humoral and cellular immunological markers that are readily available in clinical practice can be used to identify heart transplant recipients (HTR) at risk of developing severe infections. In this study, we perform an extended analysis to identify immunological profiles that could prove to be superior to individual markers in assessing the risk of infection early after heart transplantation. METHODS In a prospective follow-up study, we evaluated 100 HTR at 1 week after transplantation. Laboratory tests included determination of immunoglobulin (Ig) levels (IgG, IgA, IgM), complement factors (C3 and C4), and lymphocyte subsets (CD3+, CD4+, CD8+ T cells, B cells, and natural killer [NK] cells). The prevalence of infection during the first 3 months was registered at scheduled visits after transplantation. Severe infections were defined as all infections requiring hospitalization and intravenous antimicrobial therapy. RESULTS During follow-up, 33 patients (33%) developed severe infections. The individual risk factors of severe infection, according to the Cox regression analysis, were as follows: IgG <600 mg/dL (hazard ratio [HR], 2.41; 95% confidence interval [CI], 1.21-4.78; P = 0.012), C3 <80 mg/dL (HR, 4.65; 95% CI, 2.31-9.38; P < 0.0001), C4 <18 mg/dL (HR 2.30, 95% CI, 1.15-4.59; P = 0.018), NK count <30 cells/μL (HR 4.07, 95% CI, 1.76-9.38; P = 0.001), and CD4 count <350 cells/μL (HR, 3.04; 95% CI, 1.47-6.28; P = 0.0027). An immunological score was created. HRs were used to determine the number of points assigned to each of the 5 previously mentioned individual risk factors. The score was obtained from the sum of these factors. In the multivariate Cox regression analysis, the immunological score was useful for identifying patients at risk of infection and was the only variable that maintained a significant association with the development of infection, after adjustment for the 5 individual factors. CONCLUSION Patients with an immunological score ≥13 were at the highest risk of severe infections (HR, 9.29; 95% CI, 4.57-18.90; P < 0.0001). This score remained significantly associated with the risk of severe infection after adjustment for clinical risk factors of infection. An immunological score was useful for identifying HTR at risk of developing severe infections. If this score is validated in multicenter studies, it could be easily introduced into clinical practice.
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Affiliation(s)
- E Sarmiento
- Clinical Immunology Department, University Hospital Gregorio Marañon, Madrid, Spain
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Sarmiento E, Jaramillo M, Navarro J, Rodriguez-Molina J, Fernandez-Yañez J, Palomo J, Gomez-Sanchez M, Crespo-Leiro M, Paniagua M, Almenar L, Cebrian M, Segovia J, Gomez M, Rabago G, Levy B, Mirabet S, Lopez J, Garcia-Guereta L, Carbone J. Humoral Immunity Profiles to Identify CMV-seropositive Heart Recipients at Risk of CMV Disease: A Prospective Multicenter Study. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Sarmiento E, Rodriguez-Molina J, Navarro J, Palomo J, Fernandez-Yañez J, Carbone J. Heart Recipients With a Lower Response To the 23-Valent Pneumococcal Polysaccharide Vaccine Are at Significant Risk of Bacterial Infection After Transplantation. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.085] [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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Carbone J, Rodriguez-Molina J, Navarro J, Fernandez-Yañez J, Palomo J, Alonso R, Sarmiento E. CMV-Seronegative Heart Recipients Disclose a Lower Immunocompetence Status Before Transplantation in Comparison With Seropositive Patients. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Valerio M, Rodriguez-Gonzalez CG, Munoz P, Caliz B, Sanjurjo M, Bouza E, Anaya F, Banares R, Bouza E, Bustinza A, Caliz B, Escribano P, Fernandez-Cruz A, Fernandez-Quero J, Frias I, Gayoso J, Gijon P, Guinea J, Hortal J, Martinez MC, Marquez I, Menarguez MC, Munoz P, Navarro M, Padilla B, Palomo J, Pelaez T, Peral J, Pinilla B, Rincon D, Rodriguez CG, Rodriguez M, Salcedo M, Sanchez-Somolinos M, Sanjurjo M, Valerio M, Verde E, Vilalta E, Zamora E. Evaluation of antifungal use in a tertiary care institution: antifungal stewardship urgently needed. J Antimicrob Chemother 2014; 69:1993-9. [DOI: 10.1093/jac/dku053] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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González-Vílchez F, Arizón J, Segovia J, Almenar L, Crespo-Leiro M, Palomo J, Delgado J, Mirabet S, Rábago G, Pérez-Villa F, Díaz B, Sanz M, Pascual D, de la Fuente L, Guinea G. Chronic Renal Dysfunction in Maintenance Heart Transplant Patients: The ICEBERG Study. Transplant Proc 2014; 46:14-20. [DOI: 10.1016/j.transproceed.2013.09.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 09/26/2013] [Indexed: 12/01/2022]
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Palomo J, Fauconnier M, Coquard L, Gilles M, Meme S, Szeremeta F, Fick L, Franetich JF, Jacobs M, Togbe D, Beloeil JC, Mazier D, Ryffel B, Quesniaux VF. Type I interferons contribute to experimental cerebral malaria development in response to sporozoite or blood-stagePlasmodium bergheiANKA. Eur J Immunol 2013; 43:2683-95. [DOI: 10.1002/eji.201343327] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 03/01/2013] [Accepted: 04/25/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Jennifer Palomo
- CNRS, UMR7355; Orléans France
- Experimental and Molecular Immunology and Neurogenetics; University of Orleans; Orléans France
| | - Mathilde Fauconnier
- CNRS, UMR7355; Orléans France
- Experimental and Molecular Immunology and Neurogenetics; University of Orleans; Orléans France
| | - Laurie Coquard
- CNRS, UMR7355; Orléans France
- Experimental and Molecular Immunology and Neurogenetics; University of Orleans; Orléans France
| | - Maïlys Gilles
- CNRS, UMR7355; Orléans France
- Experimental and Molecular Immunology and Neurogenetics; University of Orleans; Orléans France
| | - Sandra Meme
- CNRS, Centre de Biophysique Moléculaire; Orléans France
| | | | - Lizette Fick
- Institute of Infectious Disease and Molecular Medicine; Cape Town South Africa
| | - Jean-François Franetich
- Université Pierre et Marie Curie-Paris 6, UMR S945; Paris France
- Institut National de la Santé et de la Recherche Médicale U945; Paris France
- Groupe Hospitalier Pitié-Salpêtrière Service Parasitologie-Mycologie; Paris France
| | - Muazzam Jacobs
- Institute of Infectious Disease and Molecular Medicine; Cape Town South Africa
| | | | | | - Dominique Mazier
- Université Pierre et Marie Curie-Paris 6, UMR S945; Paris France
- Institut National de la Santé et de la Recherche Médicale U945; Paris France
- Groupe Hospitalier Pitié-Salpêtrière Service Parasitologie-Mycologie; Paris France
| | - Bernhard Ryffel
- CNRS, UMR7355; Orléans France
- Experimental and Molecular Immunology and Neurogenetics; University of Orleans; Orléans France
- Institute of Infectious Disease and Molecular Medicine; Cape Town South Africa
| | - Valerie F.J. Quesniaux
- CNRS, UMR7355; Orléans France
- Experimental and Molecular Immunology and Neurogenetics; University of Orleans; Orléans France
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Lanio N, Sarmiento E, Gallego A, Navarro J, Palomo J, Fernandez-Yañez J, Ruiz M, Fernandez-Cruz E, Carbone J. Kinetics of functionally distinct T-lymphocyte subsets in heart transplant recipients after induction therapy with anti-CD25 monoclonal antibodies. Transpl Immunol 2013; 28:176-82. [DOI: 10.1016/j.trim.2013.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 04/13/2013] [Accepted: 04/15/2013] [Indexed: 12/18/2022]
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Sarmiento E, Fernandez-Yañez J, Palomo J, Gomez-Sanchez M, Crespo-Leiro M, Paniagua M, Almenar L, Cebrian M, Rabago G, Levy B, Segovia J, Gomez-Bueno M, Lopez J, García-Guereta L, Mirabet S, Jaramillo M, Navarro J, Rodriguez-Molina J, Carbone J. Validation of Humoral Immunity Profiles To Identify Heart Recipients at Risk for Development of Severe Infections: A Multicenter Prospective Study. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Sarmiento E, del Pozo N, Gallego A, Fernández-Yañez J, Palomo J, Villa A, Ruiz M, Muñoz P, Rodríguez C, Rodríguez-Molina J, Navarro J, Kotsch K, Fernandez-Cruz E, Carbone J. Decreased levels of serum complement C3 and natural killer cells add to the predictive value of total immunoglobulin G for severe infection in heart transplant recipients. Transpl Infect Dis 2012; 14:526-39. [DOI: 10.1111/j.1399-3062.2012.00757.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- E. Sarmiento
- Clinical Immunology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - N. del Pozo
- Clinical Immunology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - A. Gallego
- Clinical Immunology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - J. Fernández-Yañez
- Cardiology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - J. Palomo
- Cardiology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - A. Villa
- Cardiology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - M. Ruiz
- Cardiovascular Surgery Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - P. Muñoz
- Microbiology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - C. Rodríguez
- Biochemistry Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - J. Rodríguez-Molina
- Clinical Immunology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - J. Navarro
- Clinical Immunology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - K. Kotsch
- Transplant Immunology Group; Immunology Institute; Universitätsmedizin Charité; Berlin; Germany
| | - E. Fernandez-Cruz
- Clinical Immunology Department; University Hospital Gregorio Marañón; Madrid; Spain
| | - J. Carbone
- Clinical Immunology Department; University Hospital Gregorio Marañón; Madrid; Spain
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Carbone J, Sarmiento E, Del Pozo N, Rodriguez-Molina J, Navarro J, Fernandez-Yañez J, Palomo J, Villa A, Muñoz P, Fernandez-Cruz E. Restoration of humoral immunity after intravenous immunoglobulin replacement therapy in heart recipients with post-transplant antibody deficiency and severe infections. Clin Transplant 2012; 26:E277-83. [DOI: 10.1111/j.1399-0012.2012.01653.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Carbone
- Clinical Immunology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | - E. Sarmiento
- Clinical Immunology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | - N. Del Pozo
- Clinical Immunology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | | | - J. Navarro
- Clinical Immunology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | - J. Fernandez-Yañez
- Cardiology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | - J. Palomo
- Cardiology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | - A. Villa
- Cardiology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | - P. Muñoz
- Microbiology Department; University Hospital Gregorio Marañon; Madrid; Spain
| | - E. Fernandez-Cruz
- Clinical Immunology Department; University Hospital Gregorio Marañon; Madrid; Spain
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Carbone J, Lanio N, Gallego A, Navarro J, Palomo J, Fernandez-Yañez J, Sarmiento E. 409 Dynamic Changes in the Immunophenotypic Maturation Status of CD19 B Lymphocytes in Patients with Acute Cellular Rejection after Heart Transplantation. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Díaz-Molina B, Brossa V, Rábago G, Alonso-Pulpón L, Vilchez F, Palomo J, Manito N, Almenar L, Delgado J, Arizón J, Lage E, Lambert J, Pérez-Villa F, Blasco T, Pascual D, Fuente L, Crespo-Leiro M. 666 Prostate Cancer after Heart Transplantation: Incidence and Prognosis. Data from the Spanish Post-Heart-Transplant Tumour Registry. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.681] [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] Open
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Carbone J, Del Pozo N, Gallego A, Lanio N, Rodriguez-Molina J, Navarro J, Palomo J, Fernandez-Yañez J, Villa A, Muñoz P, Ruiz M, Hortal J, Rodriguez C, Fernandez-Cruz E, Kotsch K, Sarmiento E. 476 Identification of Immune Profiles That Are Associated with Development of Severe Infection in Heart Recipients. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.487] [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] Open
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39
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Segovia J, Gómez-Bueno M, Goicolea J, Elízaga J, Fernández-Yáñez J, Palomo J, González-Vílchez F, Alonso-Pulpón L. 206 Effect of Everolimus in Patients with Established Cardiac Allograft Vasculopathy: Results of a Randomized, Multicenter Intravascular Ultrasound Study. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Fauconnier M, Palomo J, Bourigault ML, Meme S, Szeremeta F, Beloeil JC, Danneels A, Charron S, Rihet P, Ryffel B, Quesniaux VFJ. IL-12Rβ2 Is Essential for the Development of Experimental Cerebral Malaria. J I 2012; 188:1905-14. [DOI: 10.4049/jimmunol.1101978] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Sarmiento E, Del Pozo N, Rodriguez-Molina J, Navarro J, Fernandez-Yañez J, Palomo J, Carbone J. 102 Maintenance of Antibody Response to Pneumococcal Capsular Polysaccharide Vaccination in Adult Patients after Heart Transplantation. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.109] [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: 11/24/2022] Open
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42
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Fauconnier M, Bourigault ML, Meme S, Szeremeta F, Palomo J, Danneels A, Charron S, Fick L, Jacobs M, Beloeil JC, Ryffel B, Quesniaux VFJ. Protein kinase C-theta is required for development of experimental cerebral malaria. Am J Pathol 2010; 178:212-21. [PMID: 21224058 DOI: 10.1016/j.ajpath.2010.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 09/08/2010] [Accepted: 09/14/2010] [Indexed: 11/18/2022]
Abstract
Cerebral malaria is the most severe neurologic complication in children and young adults infected with Plasmodium falciparum. T-cell activation is required for development of Plasmodium berghei ANKA (PbA)-induced experimental cerebral malaria (CM). To characterize the T-cell activation pathway involved, the role of protein kinase C-theta (PKC-θ) in experimental CM development was examined. PKC-θ-deficient mice are resistant to CM development. In the absence of PKC-θ, no neurologic sign of CM developed after blood stage PbA infection. Resistance of PKC-θ-deficient mice correlated with unaltered cerebral microcirculation and absence of ischemia, as documented by magnetic resonance imaging and magnetic resonance angiography, whereas wild-type mice developed distinct microvascular pathology. Recruitment and activation of CD8(+) T cells, and ICAM-1 and CD69 expression were reduced in the brain of resistant mice; however, the pulmonary inflammation and edema associated with PbA infection were still present in the absence of functional PKC-θ. Resistant PKC-θ-deficient mice developed high parasitemia, and died at 3 weeks with severe anemia. Therefore, PKC-θ signaling is crucial for recruitment of CD8(+) T cells and development of brain microvascular pathology resulting in fatal experimental CM, and may represent a novel therapeutic target of CM.
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Affiliation(s)
- Mathilde Fauconnier
- University of Orléans and CNRS, Molecular Immunology and Embryology UMR6218, Orléans, France
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Delgado J, Manito N, Almenar L, Crespo-Leiro M, Roig E, Segovia J, Vázquez de Prada J, Lage E, Palomo J, Campreciós M, Arizón J, Rodríguez-Lambert J, Blasco T, de la Fuente L, Pascual D, Rábago G. Risk factors associated with cytomegalovirus infection in heart transplant patients: a prospective, epidemiological study. Transpl Infect Dis 2010; 13:136-44. [DOI: 10.1111/j.1399-3062.2010.00573.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [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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Lanio N, Sarmiento E, Gallego A, Fernández-Yánez J, Palomo J, Pérez-Rojas J, Carbone J. The potential role of T-cell memory distribution as predisposing factor for rejection in heart transplant recipients. Transplant Proc 2010; 41:2480-4. [PMID: 19715957 DOI: 10.1016/j.transproceed.2009.06.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
CD4 T cells play a significant role in the pathogenesis of rejection, providing help to alloreactive CD8 and B cells, however, the exact contribution of each memory compartment in vivo has not been defined. They are also important for the maintenance of tolerance due to regulatory activity of specialized subsets. In this study, we assessed changes in frequencies of functionally distinct lymphocyte subsets of peripheral blood (PBLs) in 26 heart transplant recipients (HT) in association with rejection episodes. Patients who developed rejection (n = 7), namely Grade 3B (n = 1), 3A (n = 4), or 2 (n = 2), in comparison with those with stable graft function displayed at baseline (pre-HT) higher percentages of naive (CCR7+CD45RA+) CD4 T cells (median 48 vs 36.6%; P = .035) and lower percentages of central memory (CCR7+CD45RA-) CD4 T cells (33.3 vs 46.5%; P = .035). At 30 days post-HT, CD4/CD127(low)FoxP3+ T cells were significantly reduced among patients with rejection episodes (0.84 vs 2.15%; P = .042). CD8 final effector T cells were increased at 90 days post-HT among those patients who experienced rejection (TEM2: 60.8 vs 31.9%; P < .1), at the expense of shrinking CD8 central memory compartment (TCM: 8.6 vs 12.9%; P = .046). The potential role of T-cell memory distribution should be further evaluated in HT patients as possible markers to discriminate patients at risk for rejection.
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Affiliation(s)
- N Lanio
- Clinical Immunology Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain
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Bayarri MJ, Walsh D, Berger JO, Cafeo J, Garcia-Donato G, Liu F, Palomo J, Parthasarathy RJ, Paulo R, Sacks J. Computer model validation with functional output. Ann Stat 2007. [DOI: 10.1214/009053607000000163] [Citation(s) in RCA: 185] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Díaz B, González Vilchez F, Almenar L, Delgado JF, Manito N, Paniagua MJ, Crespo MG, Kaplinsky E, Pascual DA, Fernández-Yáñez J, Mirabet S, Palomo J. Gastrointestinal Complications in Heart Transplant Patients: MITOS Study. Transplant Proc 2007; 39:2397-400. [PMID: 17889201 DOI: 10.1016/j.transproceed.2007.07.061] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The most frequent immunosuppressive treatment complications in solid organ transplant recipients are gastrointestinal (GI) disorders. MATERIALS AND METHODS An observational, cross-sectional study to evaluate the prevalence and management of GI complications in transplanted patients was conducted via a written questionnaire given to doctors at their practice. RESULTS This study included 1788 patients; 181 corresponded to heart transplant recipients. The mean age for the heart transplant patients was 58.7 +/- 11.8 years. The mean time from the transplantation was 5.2 +/- 4.4 years. GI complications were seen in 38.7% of cases. Regarding the clinical management, in 72.9% of cases patients with GI complications received pharmacologic treatment, 86.3% with gastric protectors, 32.8% reduced the dose of some drug, 8.1% interrupted the drug temporarily, and 10.9% discontinued the drug permanently. The drug that was always discontinued was mycophenolate mofetil (MMF), and in 85.7% of cases in which the dose of an immunosuppressive drug was reduced, the reduced drug was also MMF. CONCLUSIONS Almost 40% of heart transplant recipients suffered GI complications which affected daily activities in most cases. The most used strategy to manage these complications was based on a treatment with gastric protectors together with dose reduction and/or partial or definitive MMF discontinuation.
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Affiliation(s)
- B Díaz
- Hospital Central de Asturias, Oviedo, Spain.
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Carbone J, Sarmiento E, Palomo J, Fernandez-Yañez J, Muñoz P, Bouza E, Rodríguez-Molina J, Lanio N, Fernandez-Cruz E. The Potential Impact of Substitutive Therapy With Intravenous Immunoglobulin on the Outcome of Heart Transplant Recipients With Infections. Transplant Proc 2007; 39:2385-8. [PMID: 17889198 DOI: 10.1016/j.transproceed.2007.06.050] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [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: 11/21/2022]
Abstract
Hypogammaglobulinemia has been proposed to be a risk factor for infection after heart transplantation (OHT). Infection is a leading cause of morbility and mortality among these patients. In a retrospective study we analyzed the impact of substitutive therapy with nonspecific intravenous immunoglobulin (IVIG) on the outcomes of heart transplant patients with infections. We analyzed the outcome of 123 consecutive heart transplant recipients in our center from June 1996 to November 2005. Their mean age was 53 years (range = 22 to 69 years), and the mean follow-up = 51 months, (range = 1 to 124 months). Twenty-nine patients with hypogammaglobulinemia (mean serum immunoglobulin G levels = 480 mg/dL) experienced severe infections due to cytomegalovirus (CMV) disease, n = 4; CMV disease + another infection, n = 6; CMV infection, n = 4; CMV infection + other infection, n = 3; pulmonary nocardiosis, n = 2; recurrent pneumonia, n = 2; clostridium-difficile-associated diarrhea, n = 2; pulmonary tuberculosis, n = 1; bacterial infections, n = 5. They were treated with IVIG (400 mg/kg every 21 days) with the goal to reach normal serum immunoglobulin G levels (>700 mg/dL). Overall (n = 123), a logistic regression analysis showed IVIG therapy to be associated with a decreased risk of death [odds ratio (OR) = 0.204, 95% confidence interval (CI) = 0.04 to 0.92, P = .03]. Among patients who developed infections during follow-up (n = 70), IVIG therapy was also associated with a lower risk of death (OR = 0.104, CI = 0.02 to 0.50, P = .0047). When we stratified patients with CMV disease (n = 24) according to the presence (n = 10) or absence (n = 14) of IVIG therapy, the mortality rate of IVIG-treated patients was 20% versus 71% for non-IVIG treated patients [OR = 0.06, CI = 0.0060 to 0.63, P = .01]. The use of nonspecific IVIG in OHT with hypogammaglobulinemia and infections might reduce the risk of death. Randomized studies in a larger cohort of patients are necessary to confirm these results.
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Affiliation(s)
- J Carbone
- Clinical Immunology Unit, University Hospital Gregorio Marañón, Madrid, Spain.
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Delgado J, Crespo M, Pulpon L, Arizon J, Almenar L, Palomo J, Manito N, Rabago G, Lage E, Diaz B, Roig E, Pascual D, Blasco T, Fuente L, Vals M, Camprecios M, Muniz J. 181: Pre-existing neoplasms and risk for malignancy after heart transplantation. Data from the Spanish Post-Heart Transplant Tumors Registry. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Sarmiento E, Rodríguez-Hernández C, Rodríguez-Molina J, Fernández-Yánez J, Palomo J, Anguita J, Pérez JL, Lanio N, Fernández-Cruz E, Carbone J. Impaired anti-pneumococcal polysaccharide antibody production and invasive pneumococcal infection following heart transplantation. Int Immunopharmacol 2006; 6:2027-30. [PMID: 17161358 DOI: 10.1016/j.intimp.2006.09.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [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: 09/15/2006] [Accepted: 09/15/2006] [Indexed: 11/20/2022]
Abstract
An increased risk of invasive pneumococcal infection has been described among adult heart transplant (HT) recipients. Vaccination has been recommended before HT but the appropriate time for revaccination is not known. In a preliminary analysis of a prospective study involving a cohort of 32 HT recipients receiving daclizumab and triple immunosuppresion therapy, a progressive decline in pneumococcal polysaccharide antibody (anti-PPS) levels was observed during the first year after HT. One of the patients who was found to have a decrease in the levels of anti-PPS developed severe pneumococcal meningitis 20 months after HT. Before HT he had received non-conjugated 23-valent pneumococcal vaccine and showed a normal post-immunization anti-PPS production. The data suggest that long-term immunologic monitoring might be useful to recognize impairment of antibody responses under immunosuppressive therapy in HT.
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Affiliation(s)
- E Sarmiento
- Immunology Department, University General Hospital Gregorio Marañon, Madrid, Spain
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Sarmiento E, Rodriguez-Molina JJ, Fernandez-Yañez J, Palomo J, Urrea R, Muñoz P, Bouza E, Fernandez-Cruz E, Carbone J. IgG monitoring to identify the risk for development of infection in heart transplant recipients. Transpl Infect Dis 2006; 8:49-53. [PMID: 16623821 DOI: 10.1111/j.1399-3062.2006.00136.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [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: 11/28/2022]
Abstract
Infectious complication represents a significant source of morbidity and mortality in heart transplant recipients. To assess humoral immunity markers that can predict the development of infection, 38 consecutive recipients of heart transplants performed at a single center were prospectively studied. Induction therapy included daclizumab. Immunoglobulin (IgG, IgA, IgM) and complement factors (C3, C4, and factor B) were performed by nephelometry in peripheral blood samples obtained before transplantation, and 7 days and 1 month after transplantation. During a mean follow-up of 16.9 months, 13 patients had at least one episode of infection (34.2%). Eight of these were cytomegalovirus (CMV) infections treated with intravenous ganciclovir, 2 were bacterial pneumonia, 1 patient had bacterial septicemia, 1 patient had urinary tract infection, and 1 patient had pulmonary nocardiosis. No significant association was found between infection and age, sex, immunosuppression, CMV serostatus of donor and recipient, or treated rejection episodes. Pre-transplant IgG (below median value=1140 mg/dL; relative risk [RR] 3.69; 95% confidence interval [CI] 1.01-13.54; P=0.04) and post-transplant IgG levels at day 7 (below median value=679 mg/dL; RR 11.21; CI 1.04-89.48; P=0.022) were associated with an increase in the risk for developing infections. Early monitoring of immunoglobulin levels might help to identify the risk for developing infection in heart transplantation.
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Affiliation(s)
- E Sarmiento
- Clinical Immunology Unit, Cardiology Department, University Hospital Gregorio Maranon, Madrid, Spain
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