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Minute L, Bergón-Gutiérrez M, Mata-Martínez P, Fernández-Pascual J, Terrón V, Bravo-Robles L, Bıçakcıoğlu G, Zapata-Fernández G, Aguiló N, López-Collazo E, del Fresno C. Heat-killed Mycobacterium tuberculosis induces trained immunity in vitro and in vivo administered systemically or intranasally. iScience 2024; 27:108869. [PMID: 38318361 PMCID: PMC10838711 DOI: 10.1016/j.isci.2024.108869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/03/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Trained immunity (TI) represents a memory-like process of innate immune cells. TI can be initiated with various compounds such as fungal β-glucan or the tuberculosis vaccine, Bacillus Calmette-Guérin. Nevertheless, considering the clinical applications of harnessing TI against infections and cancer, there is a growing need for new, simple, and easy-to-use TI inducers. Here, we demonstrate that heat-killed Mycobacterium tuberculosis (HKMtb) induces TI both in vitro and in vivo. In human monocytes, this effect represents a truly trained process, as HKMtb confers boosted inflammatory responses against various heterologous challenges, such as lipopolysaccharide (Toll-like receptor [TLR] 4 ligand) and R848 (TLR7/8 ligand). Mechanistically, HKMtb-induced TI relies on epigenetic mechanisms in a Syk/HIF-1α-dependent manner. In vivo, HKMtb induced TI when administered both systemically and intranasally, with the latter generating a more robust TI response. Summarizing, our research has demonstrated that HKMtb has the potential to act as a mucosal immunotherapy that can successfully induce trained responses.
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Affiliation(s)
- Luna Minute
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Marta Bergón-Gutiérrez
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Pablo Mata-Martínez
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Jaime Fernández-Pascual
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Verónica Terrón
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Laura Bravo-Robles
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Gülce Bıçakcıoğlu
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Gabriela Zapata-Fernández
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Nacho Aguiló
- Department of Microbiology, Pediatrics, Radiology, and Public Health, University of Zaragoza/IIS Aragon, Zaragoza, Spain
- CIBERES, CIBERINFEC, Carlos III Health Institute, Madrid, Spain
| | - Eduardo López-Collazo
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
- CIBERES, CIBERINFEC, Carlos III Health Institute, Madrid, Spain
| | - Carlos del Fresno
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
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del Fresno C, Schulte LN, López-Collazo E. Editorial: Role of hypoxia-inducible factors in metabolic immune cell adaptation during sepsis. Front Immunol 2023; 14:1194504. [PMID: 37143647 PMCID: PMC10151767 DOI: 10.3389/fimmu.2023.1194504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 05/06/2023] Open
Affiliation(s)
- Carlos del Fresno
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Immunomodulation Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
- *Correspondence: Carlos del Fresno, ; Leon Nicolas Schulte, ; Eduardo López-Collazo,
| | - Leon Nicolas Schulte
- Institute for Lung Research, Faculty of Medicine, University of Marburg, Marburg, Germany
- German Center for Lung Research (DZL), Giessen, Germany
- *Correspondence: Carlos del Fresno, ; Leon Nicolas Schulte, ; Eduardo López-Collazo,
| | - Eduardo López-Collazo
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumour Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
- *Correspondence: Carlos del Fresno, ; Leon Nicolas Schulte, ; Eduardo López-Collazo,
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Lozano-Rodríguez R, Avendaño-Ortíz J, Terrón V, Montalbán-Hernández K, Casalvilla-Dueñas J, Bergón-Gutiérrez M, Mata-Martínez P, Martín-Quirós A, García-Garrido MÁ, del Balzo-Castillo Á, Peinado M, Gómez L, Llorente-Fernández I, Martín-Miguel G, Herrero-Benito C, López-Morejón L, Vela-Olmo C, Cubillos-Zapata C, López-Collazo E, del Fresno C. mRNA-1273 boost after BNT162b2 vaccination generates comparable SARS-CoV-2-specific functional responses in naïve and COVID-19-recovered individuals. Front Immunol 2023; 14:1136029. [PMID: 37153580 PMCID: PMC10160618 DOI: 10.3389/fimmu.2023.1136029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/03/2023] [Indexed: 05/09/2023] Open
Abstract
Introduction COVID-19 vaccines based on mRNA have represented a revolution in the biomedical research field. The initial two-dose vaccination schedule generates potent humoral and cellular responses, with a massive protective effect against severe COVID-19 and death. Months after this vaccination, levels of antibodies against SARS-CoV-2 waned, and this promoted the recommendation of a third vaccination dose. Methods We have performed an integral and longitudinal study of the immunological responses triggered by the booster mRNA-1273 vaccination, in a cohort of health workers previously vaccinated with two doses of the BNT162b2 vaccine at University Hospital La Paz located in Madrid, Spain. Circulating humoral responses and SARS-CoV-2-specific cellular reactions, after ex vivo restimulation of both T and B cells (cytokines production, proliferation, class switching), have been analyzed. Importantly, all along these studies, the analyses have been performed comparing naïve and subjects recovered from COVID-19, addressing the influence of a previous infection by SARS-CoV-2. Furthermore, as the injection of the third vaccination dose was contemporary to the rise of the Omicron BA.1 variant of concern, T- and B-cell-mediated cellular responses have been comparatively analyzed in response to this variant. Results All these analyses indicated that differential responses to vaccination due to a previous SARS-CoV-2 infection were balanced following the boost. The increase in circulating humoral responses due to this booster dropped after 6 months, whereas T-cell-mediated responses were more stable along the time. Finally, all the analyzed immunological features were dampened in response to the Omicron variant of concern, particularly late after the booster vaccination. Conclusion This work represents a follow-up longitudinal study for almost 1.5 years, analyzing in an integral manner the immunological responses triggered by the prime-boost mRNA-based vaccination schedule against COVID-19.
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Affiliation(s)
- Roberto Lozano-Rodríguez
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - José Avendaño-Ortíz
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Verónica Terrón
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Karla Montalbán-Hernández
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - José Casalvilla-Dueñas
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Marta Bergón-Gutiérrez
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Pablo Mata-Martínez
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Alejandro Martín-Quirós
- Emergency Department and Emergent Pathology Research Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Miguel Ángel García-Garrido
- Emergency Department and Emergent Pathology Research Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Álvaro del Balzo-Castillo
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Emergency Department and Emergent Pathology Research Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - María Peinado
- Emergency Department and Emergent Pathology Research Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | - Laura Gómez
- Emergency Department and Emergent Pathology Research Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | | | - Gema Martín-Miguel
- Pediatric Intensive Care Unit, 12 de Octubre University Hospital, Madrid, Spain
| | - Carmen Herrero-Benito
- Emergency Department and Emergent Pathology Research Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
| | | | | | - Carolina Cubillos-Zapata
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBER) of Respiratory Diseases (CIBERES), Madrid, Spain
| | - Eduardo López-Collazo
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumor Immunology Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBER) of Respiratory Diseases (CIBERES), Madrid, Spain
- *Correspondence: Eduardo López-Collazo, ; Carlos del Fresno,
| | - Carlos del Fresno
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- *Correspondence: Eduardo López-Collazo, ; Carlos del Fresno,
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Mata-Martínez P, Bergón-Gutiérrez M, del Fresno C. Dectin-1 Signaling Update: New Perspectives for Trained Immunity. Front Immunol 2022; 13:812148. [PMID: 35237264 PMCID: PMC8882614 DOI: 10.3389/fimmu.2022.812148] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [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: 11/09/2021] [Accepted: 01/20/2022] [Indexed: 12/12/2022] Open
Abstract
The C-type lectin receptor Dectin-1 was originally described as the β-glucan receptor expressed in myeloid cells, with crucial functions in antifungal responses. However, over time, different ligands both of microbial-derived and endogenous origin have been shown to be recognized by Dectin-1. The outcomes of this recognition are diverse, including pro-inflammatory responses such as cytokine production, reactive oxygen species generation and phagocytosis. Nonetheless, tolerant responses have been also attributed to Dectin-1, depending on the specific ligand engaged. Dectin-1 recognition of their ligands triggers a plethora of downstream signaling pathways, with complex interrelationships. These signaling routes can be modulated by diverse factors such as phosphatases or tetraspanins, resulting either in pro-inflammatory or regulatory responses. Since its first depiction, Dectin-1 has recently gained a renewed attention due to its role in the induction of trained immunity. This process of long-term memory of innate immune cells can be triggered by β-glucans, and Dectin-1 is crucial for its initiation. The main signaling pathways involved in this process have been described, although the understanding of the above-mentioned complexity in the β-glucan-induced trained immunity is still scarce. In here, we have reviewed and updated all these factors related to the biology of Dectin-1, highlighting the gaps that deserve further research. We believe on the relevance to fully understand how this receptor works, and therefore, how we could harness it in different pathological conditions as diverse as fungal infections, autoimmunity, or cancer.
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Aguirre LA, Montalbán-Hernández K, Avendaño-Ortiz J, Marín E, Lozano R, Toledano V, Sánchez-Maroto L, Terrón V, Valentín J, Pulido E, Casalvilla JC, Rubio C, Diekhorst L, Laso-García F, del Fresno C, Collazo-Lorduy A, Jiménez-Munarriz B, Gómez-Campelo P, Llanos-González E, Fernández-Velasco M, Rodríguez-Antolín C, Pérez de Diego R, Cantero-Cid R, Hernádez-Jimenez E, Álvarez E, Rosas R, dies López-Ayllón B, de Castro J, Wculek SK, Cubillos-Zapata C, Ibáñez de Cáceres I, Díaz-Agero P, Gutiérrez Fernández M, Paz de Miguel M, Sancho D, Schulte L, Perona R, Belda-Iniesta C, Boscá L, López-Collazo E. Tumor stem cells fuse with monocytes to form highly invasive tumor-hybrid cells. Oncoimmunology 2020; 9:1773204. [PMID: 32923132 PMCID: PMC7458638 DOI: 10.1080/2162402x.2020.1773204] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The 'cancer cell fusion' theory is controversial due to the lack of methods available to identify hybrid cells and to follow the phenomenon in patients. However, it seems to be one of the best explanations for both the origin and metastasis of primary tumors. Herein, we co-cultured lung cancer stem cells with human monocytes and analyzed the dynamics and properties of tumor-hybrid cells (THC), as well as the molecular mechanisms beneath this fusion process by several techniques: electron-microscopy, karyotyping, CRISPR-Cas9, RNA-seq, immunostaining, signaling blockage, among others. Moreover, mice models were assessed for in vivo characterization of hybrids colonization and invasiveness. Then, the presence of THCs in bloodstream and samples from primary and metastatic lesions were detected by FACS and immunofluorescence protocols, and their correlations with TNM stages established. Our data indicate that the generation of THCs depends on the expression of CD36 on tumor stem cells and the oxidative state and polarization of monocytes, the latter being strongly influenced by microenvironmental fluctuations. Highly oxidized M2-like monocytes show the strongest affinity to fuse with tumor stem cells. THCs are able to proliferate, colonize and invade organs. THC-specific cell surface signature CD36+CD14+PANK+ allows identifying them in matched primary tumor tissues and metastases as well as in bloodstream from patients with lung cancer, thus functioning as a biomarker. THCs levels in circulation correlate with TNM classification. Our results suggest that THCs are involved in both origin and spread of metastatic cells. Furthermore, they might set the bases for future therapies to avoid or eradicate lung cancer metastasis.
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Affiliation(s)
- Luis Augusto Aguirre
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Karla Montalbán-Hernández
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - José Avendaño-Ortiz
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Centre for Biomedical Research Network of Respiratory Diseases (CIBERES), Madrid, Spain
| | - Elvira Marín
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Roberto Lozano
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Víctor Toledano
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Centre for Biomedical Research Network of Respiratory Diseases (CIBERES), Madrid, Spain
| | - Laura Sánchez-Maroto
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Verónica Terrón
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Jaime Valentín
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Elisa Pulido
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - José Carlos Casalvilla
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Carolina Rubio
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Luke Diekhorst
- Department of Neurology and Stroke Centre, Neuroscience and Cerebrovascular Research Laboratory, IdiPAZ, La Paz University Hospital, Autonomous University of Madrid, Madrid, Spain
| | - Fernando Laso-García
- Department of Neurology and Stroke Centre, Neuroscience and Cerebrovascular Research Laboratory, IdiPAZ, La Paz University Hospital, Autonomous University of Madrid, Madrid, Spain
| | - Carlos del Fresno
- Immunobiology Laboratory, National Centre for Cardiovascular Research (CNIC), Madrid, Spain
| | | | | | - Paloma Gómez-Campelo
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Emilio Llanos-González
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - María Fernández-Velasco
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Centre for Biomedical Research Network, CIBER-CV, Madrid, Spain
| | - Carlos Rodríguez-Antolín
- Biomarkers and Experimental Therapeutics in Cancer Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Rebeca Pérez de Diego
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Laboratory of Immunogenetics of Human Diseases, IdiPAZ, Madrid, Spain
| | - Ramón Cantero-Cid
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Enrique Hernádez-Jimenez
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Enrique Álvarez
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Rocío Rosas
- Biomarkers and Experimental Therapeutics in Cancer Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Blanca dies López-Ayllón
- Biomarkers and Experimental Therapeutics in Cancer Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Laboratory of Experimental Models of Human Diseases, Biomedical Research Institute CSIC/UAM, Madrid, Spain
- Centre for Biomedical Research Network, CIBERER, Madrid, Spain
| | - Javier de Castro
- Biomarkers and Experimental Therapeutics in Cancer Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Stefanie K. Wculek
- Immunobiology Laboratory, National Centre for Cardiovascular Research (CNIC), Madrid, Spain
| | - Carolina Cubillos-Zapata
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Centre for Biomedical Research Network of Respiratory Diseases (CIBERES), Madrid, Spain
| | | | | | - María Gutiérrez Fernández
- Department of Neurology and Stroke Centre, Neuroscience and Cerebrovascular Research Laboratory, IdiPAZ, La Paz University Hospital, Autonomous University of Madrid, Madrid, Spain
| | - María Paz de Miguel
- Cell Engineering Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - David Sancho
- Immunobiology Laboratory, National Centre for Cardiovascular Research (CNIC), Madrid, Spain
| | - Leon Schulte
- Institute for Lung Research/iLung, Research Group “Rna-biology of Inflammation & Infection,” Philipps University, Marburg, Germany
| | - Rosario Perona
- Biomarkers and Experimental Therapeutics in Cancer Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Laboratory of Experimental Models of Human Diseases, Biomedical Research Institute CSIC/UAM, Madrid, Spain
- Centre for Biomedical Research Network, CIBERER, Madrid, Spain
| | | | - Lisardo Boscá
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Centre for Biomedical Research Network, CIBER-CV, Madrid, Spain
- Laboratory of Experimental Models of Human Diseases, Biomedical Research Institute CSIC/UAM, Madrid, Spain
| | - Eduardo López-Collazo
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Tumour Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Centre for Biomedical Research Network of Respiratory Diseases (CIBERES), Madrid, Spain
- CONTACT Eduardo López-Collazo IdiPAZ, La Paz University Hospital, Paseo de La Castellana 261 Madrid, 28046, Spain
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Abstract
Myeloid C-type lectin receptors (CLRs) comprise a family of receptors expressed by immune myeloid cells that share homologous C-type lectin domains. The implication of these CLRs in the regulation of homeostasis and activation of myeloid cells has generated a buoyant growth in the number of studies involving these receptors. Since their first description, diverse nomenclature has been used to refer to each of them, ranging from systematic classifications, such as gene name or cluster of differentiation, to non-systematic ones that include terminology based on gene expression patterns or function. In this review, we aim to summarize the different names used for the main myeloid CLRs and analyze which of them have been more frequently used in the literature. In addition, we have examined the evolution of the terminology applied to these myeloid CLRs over time. Based on this analysis, we propose a consensus alias for each of those myeloid CLRs. However, we acknowledge that systematicity is required beyond this terminology based on use frequency. Therefore, we have included gene names as the standardization tool to gather the maximum agreement. We suggest that a standard nomenclature consisting of both gene names and consensus alias should be included at least in scientific abstracts, which would help to identify relevant literature, saving time and effort and fostering the research in this field in a more systematic manner.
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Affiliation(s)
- Carlos del Fresno
- Immunobiology Lab, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | | | - David Sancho
- Immunobiology Lab, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
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7
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Kaisar MMM, Ritter M, del Fresno C, Jónasdóttir HS, van der Ham AJ, Pelgrom LR, Schramm G, Layland LE, Sancho D, Prazeres da Costa C, Giera M, Yazdanbakhsh M, Everts B. Dectin-1/2-induced autocrine PGE2 signaling licenses dendritic cells to prime Th2 responses. PLoS Biol 2018; 16:e2005504. [PMID: 29668708 PMCID: PMC5927467 DOI: 10.1371/journal.pbio.2005504] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [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: 01/30/2018] [Revised: 04/30/2018] [Accepted: 03/20/2018] [Indexed: 02/02/2023] Open
Abstract
The molecular mechanisms through which dendritic cells (DCs) prime T helper 2 (Th2) responses, including those elicited by parasitic helminths, remain incompletely understood. Here, we report that soluble egg antigen (SEA) from Schistosoma mansoni, which is well known to drive potent Th2 responses, triggers DCs to produce prostaglandin E2 (PGE2), which subsequently—in an autocrine manner—induces OX40 ligand (OX40L) expression to license these DCs to drive Th2 responses. Mechanistically, SEA was found to promote PGE2 synthesis through Dectin-1 and Dectin-2, and via a downstream signaling cascade involving spleen tyrosine kinase (Syk), extracellular signal-regulated kinase (ERK), cytosolic phospholipase A2 (cPLA2), and cyclooxygenase 1 and 2 (COX-1 and COX-2). In addition, this pathway was activated independently of the actions of omega-1 (ω-1), a previously described Th2-priming glycoprotein present in SEA. These findings were supported by in vivo murine data showing that ω-1–independent Th2 priming by SEA was mediated by Dectin-2 and Syk signaling in DCs. Finally, we found that Dectin-2−/−, and to a lesser extent Dectin-1−/− mice, displayed impaired Th2 responses and reduced egg-driven granuloma formation following S. mansoni infection, highlighting the physiological importance of this pathway in Th2 polarization during a helminth infection. In summary, we identified a novel pathway in DCs involving Dectin-1/2-Syk-PGE2-OX40L through which Th2 immune responses are induced. T helper 2 (Th2) responses, which are initiated by dendritic cells (DCs), can cause allergic diseases, but they can also provide protection against metabolic disorders and parasitic helminth infections. As such, there is great interest in better understanding how their activity is induced and regulated by DCs. Parasitic helminths can potently induce Th2 responses. However, how helminths condition DCs for priming of Th2 responses remains incompletely understood. Here, we find that egg antigens from the parasitic helminth Schistosoma mansoni bind to pattern-recognition receptors (PRRs) Dectin-1 and Dectin-2 on DCs. This binding triggers a signaling cascade in DCs that results in synthesis of eicosanoid prostaglandin E2 (PGE2). PGE2 is sensed by the DCs themselves, resulting in expression of OX40 ligand (OX40L), which subsequently enables the DCs to promote Th2 differentiation. We show that this pathway is activated independently of omega-1 (ω-1), which is a glycoprotein secreted by the eggs and previously shown to condition DCs for priming of Th2 responses. Moreover, we demonstrate that this ω-1–independent pathway is crucial for Th2 induction and egg-driven immunopathology following S. mansoni infection in vivo. In summary, we identified a novel pathway in DCs involving Dectin-1/2–induced autocrine PGE2 signaling through which Th2 responses are induced.
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Affiliation(s)
- Maria M. M. Kaisar
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Parasitology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Manuel Ritter
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Germany
| | - Carlos del Fresno
- Centro Nacional de Investigaciones Cardiovasculares “Carlos III”, Madrid, Spain
| | - Hulda S. Jónasdóttir
- Center of Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Alwin J. van der Ham
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Leonard R. Pelgrom
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Laura E. Layland
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Germany & German Centre for Infection Research, partner site, Bonn-Cologne, Bonn, Germany
| | - David Sancho
- Centro Nacional de Investigaciones Cardiovasculares “Carlos III”, Madrid, Spain
| | | | - Martin Giera
- Center of Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Maria Yazdanbakhsh
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Bart Everts
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
- * E-mail:
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8
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González-León MC, Soares-Schanoski A, del Fresno C, Cimadevila A, Goméz-Piña V, Mendoza-Barberá E, García F, Marín E, Arnalich F, Fuentes-Prior P, López-Collazo E. Nitric oxide induces SOCS-1 expression in human monocytes in a TNF-α-dependent manner. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/09680519060120050501] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In contrast to the thoroughly characterized mechanisms of positive regulation within cytokine signaling pathways, our knowledge of negative feedback loops is comparatively sparse. We and others have previously reported that IRAK-M down-regulates inflammatory responses to multiple stimuli. In particular, we could show that the nitric oxide (NO) donor, GSNO, induces IRAK-M overexpression in human monocytes. Here we study the expression of another important negative regulator of cytokine signaling, SOCS-1, in human monocytes exposed to GSNO. The NO donor induced significant levels of SOCS-1 mRNA and protein, 6 h and 16 h after stimulation, respectively. Monocytes stimulated with GSNO for longer periods (24 h and 48 h) failed to express IL-6 and IP-10 upon LPS challenge. In addition, and in line with previous reports of NO-mediated induction of TNF-α, we have found that exposure to this cytokine induces SOCS-1 mRNA in human monocytes. A blocking antibody against TNF-α impaired SOCS-1 expression upon GSNO treatment and re-instated IL-6 and IP-10 mRNA levels after LPS challenge in cultures pretreated with the NO donor. We conclude that NO stimulates SOCS-1 overexpression in a pathway at least partially regulated by TNF-α.
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Affiliation(s)
| | | | | | | | | | | | - Felipe García
- Discover Unit, EMPIREO Molecular Diagnostic, Madrid, Spain
| | | | - Francisco Arnalich
- Department of Medicine, “La Paz' Hospital Medical School, Universidad Autónoma de Madrid, Madrid, Spain
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9
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Abstract
Endotoxin tolerance was first described in a study that exposed animals to a sublethal dose of bacterial endotoxin. The animals subsequently survived a lethal injection of endotoxin. This refractory state is associated with the innate immune system and, in particular, with monocytes and macrophages, which act as the main participants. Several mechanisms are involved in the control of endotoxin tolerance; however, a full understanding of this phenomenon remains elusive. A number of recent reports indicate that clinical examples of endotoxin tolerance include not only sepsis but also diseases such as cystic fibrosis and acute coronary syndrome. In these pathologies, the risk of new infections correlates with a refractory state. This review integrates the molecular basis and clinical implications of endotoxin tolerance in various pathologies.
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10
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Leirião P, del Fresno C, Ardavín C. Monocytes as effector cells: activated Ly-6C(high) mouse monocytes migrate to the lymph nodes through the lymph and cross-present antigens to CD8+ T cells. Eur J Immunol 2012; 42:2042-51. [PMID: 22585535 DOI: 10.1002/eji.201142166] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 03/21/2012] [Accepted: 04/20/2012] [Indexed: 12/24/2022]
Abstract
Monocytes have the capacity to differentiate into macrophages or dendritic cells (DCs) after extravasation into lymphoid and nonlymphoid tissues. They have thus been consequently considered as precursors, but not effector cells, recirculating exclusively through the blood. In this report, we demonstrate for the first time that, after subcutaneous injection, activated monocytes migrate through the lymphatics from the dermis into the draining lymph nodes by a CCR7-dependent mechanism. LPS-activated monocytes were less efficient than DCs in stimulating CD4(+) T cells, but unexpectedly, they were highly efficient in inducing antigen-specific CD8(+) T-cell proliferation by cross-presentation, both in vitro and in vivo. Interestingly, CD8(+) T cells stimulated in vivo by activated monocytes expressed a high level of CD62L, suggesting that they had undergone an unconventional activation process. In conclusion, our data strongly support the concept that monocytes can behave not only as precursor cells for macrophages and DCs, but also as effector cells with the capacity to migrate from the periphery to the lymph nodes through the lymph and to cross-present antigens to CD8(+) T cells. These results suggest that monocytes can play an important role in the induction and regulation of CD4(+) and CD8(+) T-cell responses.
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Affiliation(s)
- Patrícia Leirião
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/CSIC, Universidad Autónoma, Madrid, Spain
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11
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Gómez-Piña V, Martínez E, Fernández-Ruíz I, del Fresno C, Soares-Schanoski A, Jurado T, Siliceo M, Toledano V, Fernández-Palomares R, García-Rio F, Arnalich F, Biswas SK, López-Collazo E. Role of MMPs in orchestrating inflammatory response in human monocytes via a TREM-1-PI3K-NF-κB pathway. J Leukoc Biol 2012; 91:933-945. [DOI: 10.1189/jlb.0711340] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Abstract
ABSTRACTThe MMPs constitute a family of endopeptidases that can cleavage extracellular proteins. They are involved in a number of events; some of these include inflammatory processes. One of its targets is the TREM-1, which has emerged as an important modulator of innate immune responses in mammals. This transmembrane glycoprotein possesses an Ig-like ectodomain readily shed by MMPs to generate sTREM-1. Whereas membrane-anchored TREM-1 amplifies inflammatory responses, sTREM-1 exhibits anti-inflammatory properties. Here we show that sustained cell surface expression of TREM-1 in human monocytes, through metalloproteinase inhibition, counteracts the well-characterized down-regulation of several proinflammatory cytokines during the ET time-frame, also known as M2 or alternative activation. In addition to the cytokines profile, other features of the ET phenotype were underdeveloped when TREM-1 was stabilized at the cell surface. These events were mediated by the signal transducers PI3Ks and Syk. We also show that sTREM-1 counteracts the proinflammatory response obtained by membrane TREM-1 stabilization but failed to induce ET on naïve human monocytes. As the sustained TREM-1 expression at the cell surface suffices to block the progress of a refractory state in human monocytes, our data indicate that TREM-1 and MMPs orchestrate an “adaptive” form of innate immunity by modulating the human monocytes response to endotoxin.
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Affiliation(s)
| | | | | | | | | | - Teresa Jurado
- Laboratory of Tumor Immunology, IdiPAZ , Madrid, Spain
| | - María Siliceo
- Laboratory of Tumor Immunology, IdiPAZ , Madrid, Spain
| | | | | | | | | | - Subhra K Biswas
- Singapore Immunology Network, Biomedical Sciences Institutes , Singapore
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12
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del Campo R, Martínez E, del Fresno C, Alenda R, Gómez-Piña V, Fernández-Ruíz I, Siliceo M, Jurado T, Toledano V, Arnalich F, García-Río F, López-Collazo E. Translocated LPS might cause endotoxin tolerance in circulating monocytes of cystic fibrosis patients. PLoS One 2011; 6:e29577. [PMID: 22216320 PMCID: PMC3247277 DOI: 10.1371/journal.pone.0029577] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Accepted: 11/30/2011] [Indexed: 12/04/2022] Open
Abstract
Cystic Fibrosis (CF) is an inherited pleiotropic disease that results from abnormalities in the gene codes of a chloride channel. The lungs of CF patients are chronically infected by several pathogens but bacteraemia have rarely been reported in this pathology. Besides that, circulating monocytes in CF patients exhibit a patent Endotoxin Tolerance (ET) state since they show a significant reduction of the inflammatory response to bacterial stimulus. Despite a previous description of this phenomenon, the direct cause of ET in CF patients remains unknown. In this study we have researched the possible role of microbial/endotoxin translocation from a localized infection to the bloodstream as a potential cause of ET induction in CF patients. Plasma analysis of fourteen CF patients revealed high levels of LPS compared to healthy volunteers and patients who suffer from Chronic Obstructive Pulmonary Disease. Experiments in vitro showed that endotoxin concentrations found in plasma of CF patients were enough to induce an ET phenotype in monocytes from healthy controls. In agreement with clinical data, we failed to detect bacterial DNA in CF plasma. Our results suggest that soluble endotoxin present in bloodstream of CF patients causes endotoxin tolerance in their circulating monocytes.
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Affiliation(s)
- Rosa del Campo
- Servicio de Microbiología and CIBER en Epidemiología y Salud Pública (CIBERESP), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Eriel Martínez
- EMPIREO Research S.L., Madrid, Spain
- Laboratory of Tumor Immunology, IdiPAZ, ‘La Paz’ Hospital, Madrid, Spain
| | - Carlos del Fresno
- Laboratory of Tumor Immunology, IdiPAZ, ‘La Paz’ Hospital, Madrid, Spain
| | - Raquel Alenda
- Department of Inmunology, University Hospital Ramon y Cajal and IRYCIS, Madrid, Spain
| | - Vanesa Gómez-Piña
- EMPIREO Research S.L., Madrid, Spain
- Laboratory of Tumor Immunology, IdiPAZ, ‘La Paz’ Hospital, Madrid, Spain
| | | | - María Siliceo
- Laboratory of Tumor Immunology, IdiPAZ, ‘La Paz’ Hospital, Madrid, Spain
| | - Teresa Jurado
- Laboratory of Tumor Immunology, IdiPAZ, ‘La Paz’ Hospital, Madrid, Spain
| | - Victor Toledano
- Laboratory of Tumor Immunology, IdiPAZ, ‘La Paz’ Hospital, Madrid, Spain
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13
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del Fresno C, García-Rio F, Gómez-Piña V, Soares-Schanoski A, Fernández-Ruíz I, Jurado T, Kajiji T, Shu C, Marín E, Gutierrez del Arroyo A, Prados C, Arnalich F, Fuentes-Prior P, Biswas SK, López-Collazo E. Potent Phagocytic Activity with Impaired Antigen Presentation Identifying Lipopolysaccharide-Tolerant Human Monocytes: Demonstration in Isolated Monocytes from Cystic Fibrosis Patients. J Immunol 2009; 182:6494-507. [DOI: 10.4049/jimmunol.0803350] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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del Fresno C, Gómez-Piña V, Lores V, Soares-Schanoski A, Fernández-Ruiz I, Rojo B, Alvarez-Sala R, Caballero-Garrido E, García F, Veliz T, Arnalich F, Fuentes-Prior P, García-Río F, López-Collazo E. Monocytes from cystic fibrosis patients are locked in an LPS tolerance state: down-regulation of TREM-1 as putative underlying mechanism. PLoS One 2008; 3:e2667. [PMID: 18628981 PMCID: PMC2442190 DOI: 10.1371/journal.pone.0002667] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [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: 02/26/2008] [Accepted: 06/13/2008] [Indexed: 02/07/2023] Open
Abstract
Cystic Fibrosis (CF) is an inherited pleiotropic disease that results from abnormalities in the gene that codes for the chloride channel, Cystic Fibrosis Transmembrane Conductance Regulator (CFTR). CF patients are frequently colonized by several pathogens, but the mechanisms that allow colonization in spite of apparently functional immune systems are incompletely understood. In this paper we show that blood peripheral monocytes isolated from CF patients are found in an endotoxin tolerance state, yet this is not due to a deficient TLR activation. On the other hand, levels of the amplifier of inflammatory responses, TREM-1 (Triggering Receptor Expressed on Myeloid cells), are notably down-regulated in monocytes from patients, in comparison to those extracted from healthy volunteers. Furthermore, the soluble form of TREM-1 (sTREM-1) was not detected in the sera of patients. Additionally, and in strict contrast to patients who suffer from Chronic Obstructive Pulmonary Disease (COPD), CF monocytes challenged ex vivo with LPS neither up-regulated membrane-anchored TREM-1 nor sTREM-1. Finally, similar levels of PGE2 expression and p65 translocation into the nucleus were found in both patients and healthy volunteers, thus suggesting that TREM-1 regulation is neither controlled by PGE2 levels nor by p65 activation in this case. However, PU.1 translocation into the nucleus was significantly higher in CF monocytes than in controls, suggesting a role for this transcription factor in the control of TREM-1 expression. We conclude that down-regulation of TREM-1 expression in cystic fibrosis patients is at least partly responsible for the endotoxin tolerance state in which their monocytes are locked.
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15
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Brú A, del Fresno C, Soares-Schanoski A, Albertos S, Brú I, Porres A, Rollán-Landeras E, Dopazo A, Casero D, Gómez-Piña V, García L, Arnalich F, Alvarez R, Rodríguez-Rojas A, Fuentes-Prior P, López-Collazo E. Position-dependent expression of GADD45alpha in rat brain tumours. Med Oncol 2008; 24:436-44. [PMID: 17917095 DOI: 10.1007/s12032-007-0025-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2007] [Revised: 11/30/1999] [Accepted: 04/13/2007] [Indexed: 10/23/2022]
Abstract
Although the complex and multifactorial process of tumour growth has been extensively studied for decades, our understanding of the fundamental relationship between tumour growth dynamics and genetic expression profile remains incomplete. Recent studies of tumour dynamics indicate that gene expression in solid tumours would depend on the distance from the centre of the tumour. Since tumour proliferative activity is mainly localised to its external zone, and taking into account that generation and expansion of genetic mutations depend on the number of cell divisions, important differences in gene expression between central and peripheral sections of the same tumour are to be expected. Here, we have studied variations in the genetic expression profile between peripheral and internal samples of the same brain tumour. We have carried out microarray analysis of mRNA expression, and found a differential profile of genetic expression between the two cell subsets. In particular, one major nuclear protein that regulates cell responses to DNA-damaging and stress signals, GADD45alpha, was expressed at much lower levels in the peripheral zone, as compared to tumour core samples. These differences in GADD45alpha mRNA transcription levels have been confirmed by quantitative analysis via real time PCR, and protein levels of GADD45alpha also exhibit the same pattern of differential expression. Our findings suggest that GADD45alpha might play a major role in the regulation of brain tumour invasive potential.
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Affiliation(s)
- Antonio Brú
- Department of Applied Mathematics, Faculty of Mathematics, Complutense University, Madrid, Spain
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16
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del Fresno C, Soler-Rangel L, Soares-Schanoski A, Gómez-Piña V, González-León MC, Gómez-García L, Mendoza-Barberá E, Rodríguez-Rojas A, García F, Fuentes-Prior P, Arnalich F, López-Collazo E. Inflammatory responses associated with acute coronary syndrome up-regulate IRAK-M and induce endotoxin tolerance in circulating monocytes. ACTA ACUST UNITED AC 2007; 13:39-52. [PMID: 17621545 DOI: 10.1177/0968051907078623] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acute coronary syndrome (ACS) groups different cardiac diseases whose development is associated with inflammation. Here we have analyzed the levels of inflammatory cytokines and of members of the TLR/IRAK pathway including IRAK-M in monocytes from ACS patients classified as either UA (unstable angina), STEMI (ST-elevation myocardial infarction) or NSTEMI (non-ST-elevation myocardial infarction). Circulating monocytes from all patients, but not from healthy individuals, showed high levels of pro-inflammatory cytokines, TNF-alpha and IL-6, as well as of IRAK-M and IL-10. TLR4 was also up-regulated, but IRAK-1, IRAK-4 and MyD88 levels were similar in patients and controls. Further, we investigated the consequences of cytokines/IRAK-M expression on the innate immune response to endotoxin. Ex vivo responses to LPS were markedly attenuated in patient monocytes compared to controls. Control monocytes cultured for 6 h in supplemented medium (10% serum from ACS patients) expressed IRAK-M, and LPS stimulation failed to induce TNF-alpha and IL-6 in these cultures. Pre-incubation of the serum with a blocking anti-TNF-alpha antibody reduced this endotoxin tolerance effect, suggesting that TNF-alpha controls this phenomenon, at least partially. We show for the first time that inflammatory responses associated with ACS induce an unresponsiveness state to endotoxin challenge in circulating monocytes, which correlates with expression of IRAK-M, TLR4 and IL-10. The magnitude of this response varies according to the clinical condition (UA, STEMI or NSTEMI), and is regulated by TNF-alpha.
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Soares-Schanoski A, Gómez-Piña V, del Fresno C, Rodríguez-Rojas A, García F, Glaría A, Sánchez M, Vallejo-Cremades MT, Baos R, Fuentes-Prior P, Arnalich F, López-Collazo E. 6-Methylprednisolone down-regulates IRAK-M in human and murine osteoclasts and boosts bone-resorbing activity: a putative mechanism for corticoid-induced osteoporosis. J Leukoc Biol 2007; 82:700-9. [PMID: 17576820 DOI: 10.1189/jlb.1106673] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Osteoclasts are large, multinucleated cells, which originate from the fusion of macrophages. They play a central role in bone development and remodeling via the resorption of bone and are thus important mediators of bone loss, which leads to osteoporosis. IL-1R-associated kinase (IRAK)-M is a pseudokinase, which acts as a negative modulator of innate immune responses mediated by TLRs and IL-1R. Recently, it has been reported that IRAK-M also participates in the control of macrophage differentiation into osteoclasts. In addition, it was shown that IRAK-M knockout mice develop a strong osteoporosis phenotype, suggesting that down-regulation of this molecule activates osteoclast-mediated bone resorption. We studied the effect of the osteoporosis-inducing glucocorticoid, 6-methylprednisolone (6-MP), on IRAK-M expression in osteoclasts. Our results showed that osteoclasts, derived from THP-1 and RAW cells as well as human blood monocytes, differentiated into osteoclasts, express high levels of IRAK-M at mRNA and protein levels. In addition, 6-MP down-regulates IRAK-M expression, which correlates with an increased activation of bone resorption. These findings suggest a mechanism of corticosteroid-induced osteoporosis and open new avenues for treating this endemic disease of Western societies.
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González-León MC, Soares-Schanoski A, del Fresno C, Cimadevila A, Goméz-Piña V, Mendoza-Barberá E, García F, Marín E, Arnalich F, Fuentes-Prior P, López-Collazo E. Nitric oxide induces SOCS-1 expression in human monocytes in a TNF-alpha-dependent manner. ACTA ACUST UNITED AC 2006; 12:296-306. [PMID: 17059693 DOI: 10.1179/096805106x118843] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
In contrast to the thoroughly characterized mechanisms of positive regulation within cytokine signaling pathways, our knowledge of negative feedback loops is comparatively sparse. We and others have previously reported that IRAK-M down-regulates inflammatory responses to multiple stimuli. In particular, we could show that the nitric oxide (NO) donor, GSNO, induces IRAK-M overexpression in human monocytes. Here we study the expression of another important negative regulator of cytokine signaling, SOCS-1, in human monocytes exposed to GSNO. The NO donor induced significant levels of SOCS-1 mRNA and protein, 6 h and 16 h after stimulation, respectively. Monocytes stimulated with GSNO for longer periods (24 h and 48 h) failed to express IL-6 and IP-10 upon LPS challenge. In addition, and in line with previous reports of NO-mediated induction of TNF-alpha, we have found that exposure to this cytokine induces SOCS-1 mRNA in human monocytes. A blocking antibody against TNF-alpha impaired SOCS-1 expression upon GSNO treatment and re-instated IL-6 and IP-10 mRNA levels after LPS challenge in cultures pretreated with the NO donor. We conclude that NO stimulates SOCS-1 overexpression in a pathway at least partially regulated by TNF-alpha.
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López-Collazo E, Fuentes-Prior P, Arnalich F, del Fresno C. Pathophysiology of interleukin-1 receptor-associated kinase-M: implications in refractory state. Curr Opin Infect Dis 2006; 19:237-44. [PMID: 16645484 DOI: 10.1097/01.qco.0000224817.35105.7d] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW The pseudo-kinase interleukin-1 receptor-associated kinase-M has emerged as a critical molecule in the down-regulation of inflammatory responses. Dysregulation of the toll-like receptor-interleukin-1 receptor-associated kinase system, and in particular interleukin-1 receptor-associated kinase-M up-regulation, are associated with a number of pathologies. This review highlights recent findings on interleukin-1 receptor-associated kinase-M reported in biomedical literature. RECENT FINDINGS Interleukin-1 receptor-associated kinase-M plays a critical role in generating a refractory state of the immune system following monocytes/macrophages encounter with bacteria or tumor cells. This state has been demonstrated so far in patients who suffer from sepsis, leukemia, and acute coronary syndrome, and seems to be associated with interleukin-1 receptor-associated kinase-M overexpression in their circulating monocytes. In addition, the pseudo-kinase represents a central regulator of osteoclast differentiation and activation, and might thus be related to the onset of osteoporosis. SUMMARY Interleukin-1 receptor-associated kinase-M is involved in the control of endotoxin tolerance in monocytes, in osteoporosis, as well as in the deactivation of tumor-infiltrating macrophages. Additionally, patients who suffer from several pathologies related to inflammatory responses express high levels of this molecule in their circulating monocytes. Human monocytes treated with a nitric oxide donor also express large amounts of interleukin-1 receptor-associated kinase-M, apparently under the control of tumor necrosis factor-alpha. This mechanism could explain the induction of interleukin-1 receptor-associated kinase-M in monocytes from patients who suffer from an inflammatory pathology.
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del Fresno C, Gómez-García L, Caveda L, Escoll P, Arnalich F, Zamora R, López-Collazo E. Nitric oxide activates the expression of IRAK-M via the release of TNF-alpha in human monocytes. Nitric Oxide 2005; 10:213-20. [PMID: 15275867 DOI: 10.1016/j.niox.2004.04.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2004] [Revised: 04/19/2004] [Indexed: 11/19/2022]
Abstract
The activation of interleukin receptor associated kinases (IRAK) is an important event in several inflammatory processes. However, exposing monocytes to a nitric oxide (NO) donor inhibits the activity of IRAK-1 and its molecular interaction with TNF receptor associated factor-6 (TRAF6). Despite the fact that NO is known to regulate many events in the immune and vascular system, the mechanism that underlies this inhibition remains unknown. We have recently demonstrated that IRAK-M inhibits the TLR/IRAK pathway during endotoxin tolerance and thus, we hypothesized that IRAK-M may be involved in the inhibition of IRAK-1 activity in the presence of NO. Hence, we have analyzed the expression of IRAK-M in human monocytes following exposure to a NO donor (GSNO) and we have observed that GSNO was capable of inducing IRAK-M mRNA and protein expression 8 and 20 h after stimulation, respectively. It is known that NO induces the expression of TNF-alpha in monocytes and we found that exposure to TNF-alpha induced IRAK-M mRNA expression in human monocytes within 2 h of stimulation. Furthermore, the expression of IRAK-M induced by GSNO was inhibited by the presence of a blocking antibody raised against TNF-alpha. Thus, our data indicate that stimulation of human monocytes with a NO donor results in a clear induction of IRAK-M and this is dependent on the release of TNF-alpha by this kind of cells.
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Affiliation(s)
- Carlos del Fresno
- Research Unit, Department of Surgical Research, La Paz Hospital, Madrid 28046, Spain
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del Fresno C, Otero K, Gómez-García L, González-León MC, Soler-Ranger L, Fuentes-Prior P, Escoll P, Baos R, Caveda L, García F, Arnalich F, López-Collazo E. Tumor Cells Deactivate Human Monocytes by Up-Regulating IL-1 Receptor Associated Kinase-M Expression via CD44 and TLR4. J Immunol 2005; 174:3032-40. [PMID: 15728517 DOI: 10.4049/jimmunol.174.5.3032] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Although blood monocytes possess significant cytotoxic activity against tumor cells, tumor-infiltrating monocytes are commonly deactivated in cancer patients. Monocytes pre-exposed to tumor cells show significantly decreased expression levels of TNF-alpha, IL-12p40, and IL-1R-associated kinase (IRAK)-1. Activation of the Ser/Thr kinase IRAK-1 is an important event in several inflammatory processes. By contrast, another IRAK family member, IRAK-M, negatively regulates this pathway, and is up-regulated in cultures of endotoxin-tolerant monocytes and in monocytes from septic patients within the timeframe of tolerance. In this study, we show that IRAK-M expression is enhanced at the mRNA and protein level in human monocytes cultured in the presence of tumor cells. IRAK-M was induced in monocytes upon coculturing with different tumor cells, as well as by fixed tumor cells and medium supplemented with the supernatant from tumor cell cultures. Moreover, blood monocytes from patients with chronic myeloid leukemia and patients with metastasis also overexpressed IRAK-M. Low concentrations of hyaluronan, a cell surface glycosaminoglycan released by tumor cells, also up-regulated IRAK-M. The induction of IRAK-M by hyaluronan and tumor cells was abolished by incubation with anti-CD44 or anti-TLR4 blocking Abs. Furthermore, down-regulation of IRAK-M expression by small interfering RNAs specific for IRAK-M reinstates both TNF-alpha mRNA expression and protein production in human monocytes re-exposed to a tumor cell line. Altogether, our findings indicate that deactivation of human monocytes in the presence of tumor cells involves IRAK-M up-regulation, and this effect appears to be mediated by hyaluronan through the engagement of CD44 and TLR4.
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MESH Headings
- Adult
- Antibodies, Blocking/pharmacology
- Cell Communication/immunology
- Cell Line, Tumor
- Coculture Techniques
- Down-Regulation/immunology
- Gene Expression Regulation, Neoplastic/immunology
- HL-60 Cells
- HeLa Cells
- Humans
- Hyaluronan Receptors/immunology
- Hyaluronan Receptors/physiology
- Hyaluronic Acid/pharmacology
- Interleukin-1 Receptor-Associated Kinases
- Jurkat Cells
- Macrophage Activation/immunology
- Male
- Membrane Glycoproteins/antagonists & inhibitors
- Membrane Glycoproteins/immunology
- Membrane Glycoproteins/physiology
- Middle Aged
- Monocytes/immunology
- Monocytes/metabolism
- Protein Kinases/biosynthesis
- Protein Kinases/genetics
- Protein Kinases/metabolism
- RNA, Messenger/antagonists & inhibitors
- RNA, Messenger/biosynthesis
- Receptors, Cell Surface/antagonists & inhibitors
- Receptors, Cell Surface/immunology
- Receptors, Cell Surface/physiology
- Receptors, Interleukin-1/biosynthesis
- Toll-Like Receptor 4
- Toll-Like Receptors
- Tumor Cells, Cultured
- Tumor Necrosis Factor-alpha/biosynthesis
- Tumor Necrosis Factor-alpha/genetics
- Up-Regulation/immunology
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Affiliation(s)
- Carlos del Fresno
- Research Unit, Department of Surgical Research, La Paz Hospital, Madrid, Spain
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Escoll P, del Fresno C, García L, Vallés G, Lendínez MJ, Arnalich F, López-Collazo E. Rapid up-regulation of IRAK-M expression following a second endotoxin challenge in human monocytes and in monocytes isolated from septic patients. Biochem Biophys Res Commun 2003; 311:465-72. [PMID: 14592437 DOI: 10.1016/j.bbrc.2003.10.019] [Citation(s) in RCA: 156] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The exposure of human monocytes to the gram-negative endotoxin LPS provokes them to enter a transient state in which they are refractory to further stimulation by LPS. This phenomenon is known as 'endotoxin tolerance' (ET) and it is characterized by a decrease in leukocyte proinflammatory cytokine production in response to LPS. In the present study, we have analyzed the expression of IRAK-M mRNA and protein in a human model of ET using human monocytes isolated from peripheral blood. In these monocyte cultures, IRAK-M mRNA was expressed 6h after stimulation with different doses of LPS. However, endotoxin pretreatment induced a more immediate up-regulation of IRAK-M gene expression, transcripts appearing only one hour after a second LPS-challenge, and the production of high levels of IRAK-M protein in these tolerant monocytes. We also analyzed the response of monocytes isolated from septic patients within a temporal tolerance timeframe when stimulated ex vivo with LPS. In contrast to monocytes from healthy volunteers and patients outside of the tolerance timeframe, monocytes from septic patients rapidly expressed IRAK-M mRNA when stimulated with LPS ex vivo. Moreover, the expression of IRAK-M mRNA was more rapidly induced in the presence of a PI3K inhibitor, suggesting a connection between these two kinases. Thus, our data indicate that IRAK-M could play a pivotal role in the process of ET in human monocytes and provide evidence that PI3K is involved in regulating its expression.
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Affiliation(s)
- Pedro Escoll
- Research Unit, Department of Surgical Research, La Paz Hospital, Madrid 28046, Spain
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23
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del Fresno C. Zur Konstitution des Silbersubfluorids. Z Anorg Allg Chem 1928. [DOI: 10.1002/zaac.19281720117] [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: 11/06/2022]
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