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Dávila I, Puente L, Quirce S, Arismendi E, Díaz-Palacios M, Pereira-Vega A, de Diego A, Rodriguez-Hermosa JL, Cea-Calvo L, Sánchez-Jareño M, López-Cotarelo P, Domingo C. Characteristics and Management of Patients with Refractory or Unexplained Chronic Cough in Outpatient Hospital Clinics in Spain: A Retrospective Multicenter Study. Lung 2023:10.1007/s00408-023-00620-y. [PMID: 37160771 PMCID: PMC10169201 DOI: 10.1007/s00408-023-00620-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/18/2023] [Indexed: 05/11/2023]
Abstract
PURPOSE Chronic cough (cough that persists for ≥ 8 weeks) can cause a range of physical symptoms and psychosocial effects that significantly impair patients' quality of life. Refractory chronic cough (RCC) and unexplained chronic cough (UCC) are challenging to diagnose and manage, with substantial economic implications for healthcare systems. METHODS This retrospective multicenter non-interventional study aimed to characterize the profile and health resource consumption of patients with RCC or UCC who attended outpatient clinics at Spanish hospitals. Data were collected from medical records of patients with RCC or UCC for up to 3 years before study inclusion. RESULTS The patient cohort (n = 196) was representative of the chronic cough population (77.6% female, mean age 58.5 years). Two-thirds of patients (n = 126) had RCC. The most frequently visited doctors were pulmonologists (93.4% of patients) and primary care physicians (78.6%), with a mean of 5 visits per patient over three years' observation. The most common diagnostic tests were chest x-ray (83.7%) and spirometry with bronchodilation (77.0%). The most commonly prescribed treatments were proton pump inhibitors (79.6%) and respiratory medications (87.8%). Antibiotics were prescribed empirically to 56 (28.6%) patients. Differences between RCC or UCC groups related mainly to approaches used to manage cough-associated conditions (gastroesophageal reflux disease, asthma) in patients with RCC. CONCLUSION RCC and UCC are responsible for high health resource utilization in Spanish hospitals. Specific treatments targeting the pathological processes driving chronic cough may provide opportunities to reduce the associated burden for patients and healthcare systems.
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Affiliation(s)
- Ignacio Dávila
- Servicio de Alergia, Departamento de Ciencias Biomédicas Y del Diagnóstico, Facultad de Medicina, Hospital Universitario de Salamanca, Universidad de Salamanca, Salamanca, Spain
| | - Luis Puente
- Servicio de Neumología, Hospital Universitario Gregorio Marañón- Universidad Complutense, Madrid, Spain
| | - Santiago Quirce
- Servicio de Alergia, Hospital Universitario La Paz, IdiPAZ, Madrid, Spain
| | - Ebymar Arismendi
- Servei de Pneumologia, Hospital Clínic de Barcelona, Instituto de Salud Carlos III, CIBERES, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | | | | | - Alfredo de Diego
- Servicio de Neumología, Hospital Universitari I Politècnic La Fe, Valencia, Spain
| | - Juan Luis Rodriguez-Hermosa
- Servicio de Neumología, Departamento de Medicina, Hospital Clínico San Carlos, Universidad Complutense, Madrid, Spain
| | - Luis Cea-Calvo
- Medical Affairs, MSD Spain, C. de Josefa Valcárcel, 38, 28027, Madrid, Spain.
| | | | | | - Christian Domingo
- Corporació Parc Taulí, Universitat Autònoma de Barcelona (UAB), Sabadell, Spain
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2
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González-Jiménez A, López-Cotarelo P, Agudo-Jiménez T, Martínez-Ginés M, García-Domínguez JM, Urcelay E, Espino-Paisán L. Unraveling the Influence of HHEX Risk Polymorphism rs7923837 on Multiple Sclerosis Pathogenesis. Int J Mol Sci 2022; 23:ijms23147956. [PMID: 35887298 PMCID: PMC9321666 DOI: 10.3390/ijms23147956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/14/2022] [Accepted: 07/16/2022] [Indexed: 02/04/2023] Open
Abstract
One of the multiple sclerosis (MS) risk polymorphisms, rs7923837, maps near the HHEX (hematopoietically-expressed homeobox) gene. This variant has also been associated with type 2 diabetes susceptibility and with triglyceride levels, suggesting its metabolic involvement. HHEX plays a relevant role as a negative regulator of inflammatory genes in microglia. A reciprocal repression was reported between HHEX and BCL6, another putative risk factor in MS. The present study evidenced statistically significant lower HHEX mRNA levels in lymphocytes of MS patients compared to those of controls, showing a similar trend in MS patients to the already described eQTL effect in blood from healthy individuals. Even though no differences were found in protein expression according to HHEX genotypes, statistically significant divergent subcellular distributions of HHEX appeared in patients and controls. The epistatic interaction detected between BCL6 and HHEX MS-risk variants in healthy individuals was absent in patients, indicative of a perturbed reciprocal regulation in the latter. Lymphocytes from MS carriers of the homozygous mutant genotype exhibited a distinctive, more energetic profile, both in resting and activated conditions, and significantly increased glycolytic rates in resting conditions when compared to controls sharing the HHEX genotype. In contrast, significantly higher mitochondrial mass was evidenced in homozygous mutant controls.
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Affiliation(s)
- Adela González-Jiménez
- Laboratorio de Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.G.-J.); (P.L.-C.); (T.A.-J.); (E.U.)
- Redes de Investigación Cooperativa Orientada a Resultados en Salud (RICORS), 28029 Madrid, Spain
| | - Pilar López-Cotarelo
- Laboratorio de Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.G.-J.); (P.L.-C.); (T.A.-J.); (E.U.)
| | - Teresa Agudo-Jiménez
- Laboratorio de Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.G.-J.); (P.L.-C.); (T.A.-J.); (E.U.)
| | - Marisa Martínez-Ginés
- Servicio de Neurología, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.M.-G.); (J.M.G.-D.)
| | - Jose Manuel García-Domínguez
- Servicio de Neurología, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.M.-G.); (J.M.G.-D.)
| | - Elena Urcelay
- Laboratorio de Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.G.-J.); (P.L.-C.); (T.A.-J.); (E.U.)
- Redes de Investigación Cooperativa Orientada a Resultados en Salud (RICORS), 28029 Madrid, Spain
| | - Laura Espino-Paisán
- Laboratorio de Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.G.-J.); (P.L.-C.); (T.A.-J.); (E.U.)
- Redes de Investigación Cooperativa Orientada a Resultados en Salud (RICORS), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-913303389
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3
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Espino-Paisán L, Agudo-Jiménez T, Rosales-Martínez I, López-Cotarelo P, García-Martínez MÁ, Domínguez-Mozo MI, Pérez-Pérez S, Dieli-Crimi R, Comabella M, Urcelay E, Álvarez-Lafuente R. A Polymorphism Within the MBP Gene Is Associated With a Higher Relapse Number in Male Patients of Multiple Sclerosis. Front Immunol 2020; 11:771. [PMID: 32431704 PMCID: PMC7214696 DOI: 10.3389/fimmu.2020.00771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/06/2020] [Indexed: 12/14/2022] Open
Abstract
Myelin basic protein (MBP) is thought to be one of the key autoantigens in multiple sclerosis (MS) development. A recent study described the association of the single nucleotide polymorphism (SNP) rs12959006, within the MBP gene, with a higher risk of relapse and worse prognosis. We aim at studying potential associations of this SNP to MS in an independent population. Clinical data of the first 5 years of the disease were collected retrospectively from 291 MS confirmed patients. MBP polymorphism rs12959006 was genotyped in all patients. Associations with EDSS, number of relapses and serology for Herpesvirus 6 (HHV-6) and Epstein Barr (EBV) viruses were studied. Lymphocyte activation measured by CD69 expression was also analyzed according to sex and rs12959006 genotype. The rs12959006 polymorphism contributed significantly to a higher number of relapses at 5 years after onset only in male patients (rs12959006∗TT β = 0.74 [0.36–1.09]; p = 7 × 10–5). Titers of anti-HHV6 IgG antibodies showed also a mild association with relapses, both in male and female patients (β = 0.01 [0.01–0.02]; p = 3.7 × 10–8). Both the genetic variation in MBP and HHV-6 infection aid in predicting a higher number of relapses during the first years of MS. The association described in MBP rs12959006∗T is exclusive to male patients.
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Affiliation(s)
- Laura Espino-Paisán
- Laboratorio de Investigación en Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - Teresa Agudo-Jiménez
- Laboratorio de Investigación en Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - Isabel Rosales-Martínez
- Laboratorio de Investigación en Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - Pilar López-Cotarelo
- Laboratorio de Investigación en Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - María Ángel García-Martínez
- Grupo de Investigación de Factores Ambientales en Enfermedades Degenerativas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - María Inmaculada Domínguez-Mozo
- Grupo de Investigación de Factores Ambientales en Enfermedades Degenerativas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - Silvia Pérez-Pérez
- Grupo de Investigación de Factores Ambientales en Enfermedades Degenerativas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - Romina Dieli-Crimi
- Servicio de Inmunología, Hospital Universitari Vall d'Hebron (HUVH), Diagnostic Immunology, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
| | - Manuel Comabella
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Red Española de Esclerosis Múltiple (REEM), Barcelona, Spain
| | - Elena Urcelay
- Laboratorio de Investigación en Genética de Enfermedades Complejas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
| | - Roberto Álvarez-Lafuente
- Grupo de Investigación de Factores Ambientales en Enfermedades Degenerativas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red Española de Esclerosis Múltiple (REEM), Madrid, Spain
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4
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Gómez-Cabañas L, López-Cotarelo P, Criado-García O, Murphy MP, Boya P, Rodríguez-Fernández JL. Immunological Synapse Formation Induces Mitochondrial Clustering and Mitophagy in Dendritic Cells. J Immunol 2019; 202:1715-1723. [PMID: 30718295 DOI: 10.4049/jimmunol.1800575] [Citation(s) in RCA: 7] [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: 04/23/2018] [Accepted: 01/07/2019] [Indexed: 02/02/2023]
Abstract
The immunological synapse (IS) is a superstructure formed during T cell activation at the zone of contact between T cells and dendritic cells (DCs). The IS includes specific molecular components in the T cell and DCs sides that may result in different functionality. Most of the studies on the IS have focused on the T cell side of this structure and, in contrast, the information available on the IS of DCs is sparse. Autophagy is a cellular process involved in the clearance of damaged proteins and organelles via lysosomal degradation. Mitophagy is the selective autophagy of damaged mitochondria. In this study, it is shown that IS formation induces clustering of mitochondria in the IS of DCs and partial depolarization of these organelles. At the IS of the DCs also accumulate autophagy and mitophagy markers, even when the kinase complex mTORC1, an inhibitor of the autophagy, is active. Together the results presented indicate that IS formation induces local clustering of mitochondria and mitophagy, which could be a homeostatic mechanism to control the quality of mitochondria in this region. The data underline the complexity of the regulatory mechanisms operating in the IS of DCs.
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Affiliation(s)
- Laura Gómez-Cabañas
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - Pilar López-Cotarelo
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - Olga Criado-García
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - Michael P Murphy
- Medical Research Council-Mitochondrial Biology Unit, University of Cambridge, Cambridge CB2 0XY, United Kingdom
| | - Patricia Boya
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - José Luis Rodríguez-Fernández
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
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5
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Buxadé M, Huerga Encabo H, Riera-Borrull M, Quintana-Gallardo L, López-Cotarelo P, Tellechea M, Martínez-Martínez S, Redondo JM, Martín-Caballero J, Flores JM, Bosch E, Rodríguez-Fernández JL, Aramburu J, López-Rodríguez C. Macrophage-specific MHCII expression is regulated by a remote Ciita enhancer controlled by NFAT5. J Exp Med 2018; 215:2901-2918. [PMID: 30327417 PMCID: PMC6219740 DOI: 10.1084/jem.20180314] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [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: 02/14/2018] [Revised: 07/27/2018] [Accepted: 09/17/2018] [Indexed: 01/05/2023] Open
Abstract
NFAT5 regulates macrophage MHCII expression by controlling the transcription of its coactivator Ciita through a remote enhancer. This mechanism differs from those previously found in DCs and B lymphocytes and distinguishes macrophages from these APC lineages. MHCII in antigen-presenting cells (APCs) is a key regulator of adaptive immune responses. Expression of MHCII genes is controlled by the transcription coactivator CIITA, itself regulated through cell type–specific promoters. Here we show that the transcription factor NFAT5 is needed for expression of Ciita and MHCII in macrophages, but not in dendritic cells and other APCs. NFAT5-deficient macrophages showed defective activation of MHCII-dependent responses in CD4+ T lymphocytes and attenuated capacity to elicit graft rejection in vivo. Ultrasequencing analysis of NFAT5-immunoprecipitated chromatin uncovered an NFAT5-regulated region distally upstream of Ciita. This region was required for CIITA and hence MHCII expression, exhibited NFAT5-dependent characteristics of active enhancers such as H3K27 acetylation marks, and required NFAT5 to interact with Ciita myeloid promoter I. Our results uncover an NFAT5-regulated mechanism that maintains CIITA and MHCII expression in macrophages and thus modulates their T lymphocyte priming capacity.
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Affiliation(s)
- Maria Buxadé
- Immunology Unit, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, and Barcelona Biomedical Research Park, Barcelona, Spain
| | - Hector Huerga Encabo
- Immunology Unit, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, and Barcelona Biomedical Research Park, Barcelona, Spain
| | - Marta Riera-Borrull
- Immunology Unit, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, and Barcelona Biomedical Research Park, Barcelona, Spain
| | - Lucía Quintana-Gallardo
- Immunology Unit, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, and Barcelona Biomedical Research Park, Barcelona, Spain
| | - Pilar López-Cotarelo
- Departamento de Microbiología Molecular y Biología de las Infecciones, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Mónica Tellechea
- Immunology Unit, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, and Barcelona Biomedical Research Park, Barcelona, Spain
| | - Sara Martínez-Martínez
- Gene Regulation in Cardiovascular Remodeling and Inflammation Group, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain
| | - Juan Miguel Redondo
- Gene Regulation in Cardiovascular Remodeling and Inflammation Group, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain
| | - Juan Martín-Caballero
- Parc Cientific de Barcelona/Barcelona Biomedical Research Park Animal Facilities, Barcelona, Spain
| | - Juana María Flores
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Elena Bosch
- Institute of Evolutionary Biology (Spanish National Research Council), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - José Luis Rodríguez-Fernández
- Departamento de Microbiología Molecular y Biología de las Infecciones, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Jose Aramburu
- Immunology Unit, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, and Barcelona Biomedical Research Park, Barcelona, Spain
| | - Cristina López-Rodríguez
- Immunology Unit, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, and Barcelona Biomedical Research Park, Barcelona, Spain
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6
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López-Cotarelo P, Gómez-Moreira C, Criado-García O, Sánchez L, Rodríguez-Fernández JL. Beyond Chemoattraction: Multifunctionality of Chemokine Receptors in Leukocytes. Trends Immunol 2017; 38:927-941. [PMID: 28935522 DOI: 10.1016/j.it.2017.08.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 06/05/2017] [Accepted: 08/08/2017] [Indexed: 12/19/2022]
Abstract
The word chemokine is a combination of the words chemotactic and cytokine, in other words cytokines that promote chemotaxis. Hence, the term chemokine receptor refers largely to the ability to regulate chemoattraction. However, these receptors can modulate additional leukocyte functions, as exemplified by the case of CCR7 which, apart from chemotaxis, regulates survival, migratory speed, endocytosis, differentiation and cytoarchitecture. We present evidence highlighting that multifunctionality is a common feature of chemokine receptors. Based on the activities that they regulate, we suggest that chemokine receptors can be classified into inflammatory (which control both inflammatory and homeostatic functions) and homeostatic families. The information accrued also suggests that the non-chemotactic functions controlled by chemokine receptors may contribute to optimizing leukocyte functioning under normal physiological conditions and during inflammation.
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Affiliation(s)
- Pilar López-Cotarelo
- Molecular Microbiology and Infection Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain; Equal first authors
| | - Carolina Gómez-Moreira
- Molecular Microbiology and Infection Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain; Equal first authors
| | - Olga Criado-García
- Molecular Microbiology and Infection Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain; Equal first authors
| | - Lucas Sánchez
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - José Luis Rodríguez-Fernández
- Molecular Microbiology and Infection Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain.
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7
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Cascio G, Martín-Cófreces NB, Rodríguez-Frade JM, López-Cotarelo P, Criado G, Pablos JL, Rodríguez-Fernández JL, Sánchez-Madrid F, Mellado M. CXCL12 Regulates through JAK1 and JAK2 Formation of Productive Immunological Synapses. J Immunol 2015; 194:5509-19. [PMID: 25917087 DOI: 10.4049/jimmunol.1402419] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 03/23/2015] [Indexed: 11/19/2022]
Abstract
The adaptive immune response requires interaction between T cells and APC to form a specialized structure termed the immune synapse (IS). Although the TCR is essential for IS organization, other factors such as chemokines participate in this process. In this study, we show that the chemokine CXCL12-mediated signaling contributes to correct IS organization and therefore influences T cell activation. CXCR4 downregulation or blockade on T cells caused defective actin polymerization at the contact site with APC, altered microtubule-organizing center polarization and the IS structure, and reduced T cell/APC contact duration. T cell activation was thus inhibited, as shown by reduced expression of CD25 and CD69 markers and of IL-2 mRNA levels. The results indicate that, through Gi and JAK1 and 2 kinases activation, CXCL12 signaling cooperates to build the IS and to maintain adhesive contacts between APC and T cells, required for continuous TCR signaling.
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Affiliation(s)
- Graciela Cascio
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/Consejo Superior de Investigaciones Cientificas, E-28049 Madrid, Spain
| | - Noa B Martín-Cófreces
- Servicio de Inmunología, Instituto de Investigación Sanitaria Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, E-28006 Madrid, Spain
| | - José Miguel Rodríguez-Frade
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/Consejo Superior de Investigaciones Cientificas, E-28049 Madrid, Spain
| | - Pilar López-Cotarelo
- Departamento de Biología Vascular e Inflamación, Fundación Centro Nacional de Investigaciones Cardiovasculares-Carlos III, E-28029 Madrid, Spain; Centro de Investigaciones Biológicas/Consejo Superior de Investigaciones Cientificas, E-28040 Madrid, Spain; and
| | - Gabriel Criado
- Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Sanitaria Hospital 12 de Octubre, E-28041 Madrid, Spain
| | - José L Pablos
- Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Sanitaria Hospital 12 de Octubre, E-28041 Madrid, Spain
| | - José Luis Rodríguez-Fernández
- Departamento de Biología Vascular e Inflamación, Fundación Centro Nacional de Investigaciones Cardiovasculares-Carlos III, E-28029 Madrid, Spain; Centro de Investigaciones Biológicas/Consejo Superior de Investigaciones Cientificas, E-28040 Madrid, Spain; and
| | - Francisco Sánchez-Madrid
- Servicio de Inmunología, Instituto de Investigación Sanitaria Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, E-28006 Madrid, Spain
| | - Mario Mellado
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/Consejo Superior de Investigaciones Cientificas, E-28049 Madrid, Spain;
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8
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López-Cotarelo P, Escribano-Díaz C, González-Bethencourt IL, Gómez-Moreira C, Deguiz ML, Torres-Bacete J, Gómez-Cabañas L, Fernández-Barrera J, Delgado-Martín C, Mellado M, Regueiro JR, Miranda-Carús ME, Rodríguez-Fernández JL. A novel MEK-ERK-AMPK signaling axis controls chemokine receptor CCR7-dependent survival in human mature dendritic cells. J Biol Chem 2014; 290:827-40. [PMID: 25425646 DOI: 10.1074/jbc.m114.596551] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Chemokine receptor CCR7 directs mature dendritic cells (mDCs) to secondary lymph nodes where these cells regulate the activation of T cells. CCR7 also promotes survival in mDCs, which is believed to take place largely through Akt-dependent signaling mechanisms. We have analyzed the involvement of the AMP-dependent kinase (AMPK) in the control of CCR7-dependent survival. A pro-apoptotic role for AMPK is suggested by the finding that pharmacological activators induce apoptosis, whereas knocking down of AMPK with siRNA extends mDC survival. Pharmacological activation of AMPK also induces apoptosis of mDCs in the lymph nodes. Stimulation of CCR7 leads to inhibition of AMPK, through phosphorylation of Ser-485, which was mediated by G(i)/Gβγ, but not by Akt or S6K, two kinases that control the phosphorylation of AMPK on Ser-485 in other settings. Using selective pharmacological inhibitors, we show that CCR7-induced phosphorylation of AMPK on Ser-485 is mediated by MEK and ERK. Coimmunoprecipitation analysis and proximity ligation assays indicate that AMPK associates with ERK, but not with MEK. These results suggest that in addition to Akt-dependent signaling mechanisms, CCR7 can also promote survival of mDCs through a novel MEK1/2-ERK1/2-AMPK signaling axis. The data also suggest that AMPK may be a potential target to modulate mDC lifespan and the immune response.
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Affiliation(s)
- Pilar López-Cotarelo
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | - Cristina Escribano-Díaz
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | | | - Carolina Gómez-Moreira
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | - María Laura Deguiz
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | - Jesús Torres-Bacete
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | - Laura Gómez-Cabañas
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | - Jaime Fernández-Barrera
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | - Cristina Delgado-Martín
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid
| | - Mario Mellado
- the CNB/CSIC (Centro Nacional de Biotecnología/Consejo Superior de Investigaciones Cientificas,) 28049 Madrid
| | | | | | - José Luis Rodríguez-Fernández
- From the CIB/CSIC (Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas), 28040 Madrid,
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Gómez-Cabañas L, Delgado-Martín C, López-Cotarelo P, Escribano-Diaz C, Alonso-C LM, Riol-Blanco L, Rodríguez-Fernández JL. Detecting apoptosis of leukocytes in mouse lymph nodes. Nat Protoc 2014; 9:1102-12. [PMID: 24743418 DOI: 10.1038/nprot.2014.078] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although there are multiple methods for analyzing apoptosis in cultured cells, methodologies for analyzing apoptosis in vivo are sparse. In this protocol, we describe how to detect apoptosis of leukocytes in mouse lymph nodes (LNs) via the detection of apoptotic caspases. We have previously used this protocol to study factors that modulate dendritic cell (DC) survival in LNs; however, it can also be used to analyze other leukocytes that migrate to the LNs. DCs labeled with a fluorescent cell tracker are subcutaneously injected in the posterior footpads of mice. Once the labeled DCs reach the popliteal LN (PLN), the animals are intravenously injected with FLIVO, a permeant fluorescent reagent that selectively marks active caspases and consequently apoptotic cells. Explanted PLNs are then examined under a two-photon microscope to look for the presence of apoptotic cells among the DCs injected. The protocol requires 6-6.5 h for preparation and analysis plus an additional 34-40 h to allow apoptosis of the injected DCs in the PLN.
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Affiliation(s)
- Laura Gómez-Cabañas
- 1] Centro de Investigaciones Biológicas. Consejo Superior de Investigaciones Científicas, Madrid, Spain. [2]
| | - Cristina Delgado-Martín
- 1] Centro de Investigaciones Biológicas. Consejo Superior de Investigaciones Científicas, Madrid, Spain. [2]
| | - Pilar López-Cotarelo
- Centro de Investigaciones Biológicas. Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Cristina Escribano-Diaz
- Centro de Investigaciones Biológicas. Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Luis M Alonso-C
- Centro de Microscopía y Citometría, Universidad Complutense, Madrid, Spain
| | - Lorena Riol-Blanco
- 1] Centro de Investigaciones Biológicas. Consejo Superior de Investigaciones Científicas, Madrid, Spain. [2]
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