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  1. Article: Anaphylaxis After Mango Fruit Intake: Identification of New Allergens.

    Ortega-Martín, L / Sastre, B / Rodrigo-Muñoz, J M / Cañas, J A / Valverde-Monge, M / Del Pozo, V

    Journal of investigational allergology & clinical immunology

    2021  Volume 32, Issue 5, Page(s) 401–403

    MeSH term(s) Allergens ; Anaphylaxis/diagnosis ; Anaphylaxis/etiology ; Fruit/adverse effects ; Humans ; Mangifera/adverse effects ; Plant Proteins
    Chemical Substances Allergens ; Plant Proteins
    Language English
    Publishing date 2021-11-16
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 1128657-x
    ISSN 1018-9068
    ISSN 1018-9068
    DOI 10.18176/jiaci.0766
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Unusual Secretion of Eosinophil Mediators Induced by Benralizumab.

    Cañas, J A / Valverde-Monge, M / Rodríguez-Nieto, M / González-Mangado, N / Sastre, J / Del Pozo, V

    Journal of investigational allergology & clinical immunology

    2020  Volume 31, Issue 6, Page(s) 513–515

    MeSH term(s) Anti-Asthmatic Agents ; Antibodies, Monoclonal, Humanized ; Eosinophils ; Humans ; Leukocyte Count
    Chemical Substances Anti-Asthmatic Agents ; Antibodies, Monoclonal, Humanized ; benralizumab (71492GE1FX)
    Language English
    Publishing date 2020-03-02
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 1128657-x
    ISSN 1018-9068
    ISSN 1018-9068
    DOI 10.18176/jiaci.0684
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Eosinophil Response Against Classical and Emerging Respiratory Viruses: COVID-19.

    Rodrigo-Muñoz, J M / Sastre, B / Cañas, J A / Gil-Martínez, M / Redondo, N / Del Pozo, V

    Journal of investigational allergology & clinical immunology

    2020  Volume 31, Issue 2, Page(s) 94–107

    Abstract: Eosinophils were discovered more than 140 years ago. These polymorphonuclear leukocytes have a very active metabolism and contain numerous intracellular secretory granules that enable multiple effects on both health and disease status. Classically, ... ...

    Abstract Eosinophils were discovered more than 140 years ago. These polymorphonuclear leukocytes have a very active metabolism and contain numerous intracellular secretory granules that enable multiple effects on both health and disease status. Classically, eosinophils have been considered important immune cells in the pathogenesis of inflammatory processes (eg, parasitic helminth infections) and allergic or pulmonary diseases (eg, asthma) and are always associated with a type 2 immune response. Furthermore, in recent years, eosinophils have been linked to the immune response by conferring host protection against fungi, bacteria, and viruses, which they recognize through several molecules, such as toll-like receptors and the retinoic acid-inducible gene 1-like receptor. The immune protection provided by eosinophils is exerted through multiple mechanisms and properties. Eosinophils contain numerous cytoplasmatic granules that release cationic proteins, cytokines, chemokines, and other molecules, all of which contribute to their functioning. In addition to the competence of eosinophils as effector cells, their capabilities as antigen-presenting cells enable them to act in multiple situations, thus promoting diverse aspects of the immune response. This review summarizes various aspects of eosinophil biology, with emphasis on the mechanisms used and roles played by eosinophils in host defence against viral infections and response to vaccines. The review focuses on respiratory viruses, such as the new coronavirus, SARS-CoV-2.
    MeSH term(s) Animals ; COVID-19/immunology ; Eosinophils/immunology ; Humans ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-06-16
    Publishing country Spain
    Document type Journal Article ; Review
    ZDB-ID 1128657-x
    ISSN 1018-9068
    ISSN 1018-9068
    DOI 10.18176/jiaci.0624
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: A case of anaphylaxis after oats ingestion: Research for new allergens.

    González-Afonso, M / Cañas, J A / Sastre, B / Rodrigo-Muñoz, J M / Mendoza-Alvarez, A / Martinez-Tadeo, J A / González Colino, C E / Hernández-Santana, G L / Rodriguez-Plata, E / Barrios-Recio, J / Del Pozo, V / García Robaina, J C

    Journal of investigational allergology & clinical immunology

    2022  

    Language English
    Publishing date 2022-03-02
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 1128657-x
    ISSN 1018-9068
    ISSN 1018-9068
    DOI 10.18176/jiaci.0798
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Eosinophils: Old Players in a New Game.

    Sastre, B / Rodrigo-Muñoz, J M / Garcia-Sanchez, D A / Cañas, J A / Del Pozo, V

    Journal of investigational allergology & clinical immunology

    2018  Volume 28, Issue 5, Page(s) 289–304

    Abstract: Eosinophils are terminal polymorphonuclear cells with a high number of cytoplasmic granules that originate in bone marrow. Some are exosomes, which contain multiple molecules, such as specific eosinophilic proteins, cytokines, chemokines, enzymes, and ... ...

    Abstract Eosinophils are terminal polymorphonuclear cells with a high number of cytoplasmic granules that originate in bone marrow. Some are exosomes, which contain multiple molecules, such as specific eosinophilic proteins, cytokines, chemokines, enzymes, and lipid mediators that contribute to the effector role of these cells. Moreover, exosomes present a large number of receptors that allow them to interact with multiple cell types. Eosinophils play an important role in defense against infestations and are a key element in asthma and allergic diseases. Eosinophils are recruited to the inflamed area in response to stimuli, modulating the immune response through the release to the extracellular medium of their granule-derived content. Various mechanisms of degranulation have been identified. Polymorphonuclear leukocytes contain multivesicular bodies that generate exosomes that are secreted into the extracellular environment. Eosinophilic exosomes participate in multiple processes and mechanisms. Eosinophils participate actively in asthma and are hallmarks of the disease. The cells migrate to the inflammatory focus and contribute to epithelial damage and airway remodeling. Given their relevance in this pathology, new therapeutic tools have been developed that target mainly eosinophils and their receptors. In this manuscript, we provide a global, updated vision of the biology of eosinophils and the role of eosinophils in respiratory diseases, particularly asthma. We also summarize asthma treatments linked to eosinophils and new therapeutic strategies based on biological products in which eosinophils and their receptors are the main targets.
    MeSH term(s) Animals ; Asthma/immunology ; Chemokines/immunology ; Cytokines/immunology ; Eosinophils/immunology ; Humans ; Hypersensitivity/immunology ; Inflammation/immunology
    Chemical Substances Chemokines ; Cytokines
    Language English
    Publishing date 2018-07-30
    Publishing country Spain
    Document type Journal Article ; Review
    ZDB-ID 1128657-x
    ISSN 1018-9068
    ISSN 1018-9068
    DOI 10.18176/jiaci.0295
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Eosinophil-derived exosomes contribute to asthma remodelling by activating structural lung cells.

    Cañas, J A / Sastre, B / Rodrigo-Muñoz, J M / Fernández-Nieto, M / Barranco, P / Quirce, S / Sastre, J / Del Pozo, V

    Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology

    2018  Volume 48, Issue 9, Page(s) 1173–1185

    Abstract: Background: Eosinophils, a central factor in asthma pathogenesis, have the ability to secrete exosomes. However, the precise role played by exosomes in the biological processes leading up to asthma has not been fully defined.: Objective: We ... ...

    Abstract Background: Eosinophils, a central factor in asthma pathogenesis, have the ability to secrete exosomes. However, the precise role played by exosomes in the biological processes leading up to asthma has not been fully defined.
    Objective: We hypothesized that exosomes released by eosinophils contribute to asthma pathogenesis by activating structural lung cells.
    Methods: Eosinophils from asthmatic patients and healthy volunteers were purified from peripheral blood, and exosomes were isolated from eosinophils of asthmatic and healthy individuals. All experiments were performed with eosinophil-derived exosomes from healthy and asthmatic subjects. Epithelial damage was evaluated using primary small airway epithelial cell lines through 2 types of apoptosis assays, that is, flow cytometry and TUNEL assay with confocal microscopy. Additionally, the epithelial repair was analysed by performing wound healing assays with epithelial cells. Functional studies such as proliferation and inhibition-proliferation assays were carried out in primary bronchial smooth muscle cell lines. Also, gene expression analysis of pro-inflammatory molecules was evaluated by real-time PCR on epithelial and muscle cells. Lastly, protein expression of epithelial and muscle cell signalling factors was estimated by Western blot.
    Results: Asthmatic eosinophil-derived exosomes induced an increase in epithelial cell apoptosis at 24 hour and 48 hour, impeding wound closure. In addition, muscle cell proliferation was increased at 72 hours after exosome addition and was linked with higher phosphorylation of ERK1/2. We also found higher expression of several genes when both cell types were cultured in the presence of exosomes from asthmatics: CCR3 and VEGFA in muscle cells, and CCL26, TNF and POSTN in epithelial cells. Healthy eosinophil-derived exosomes did not exert any effect over these cell types.
    Conclusions and clinical relevance: Eosinophil-derived exosomes from asthmatic patients participate actively in the development of the pathological features of asthma via structural lung cells.
    MeSH term(s) Adult ; Airway Remodeling ; Apoptosis ; Asthma/etiology ; Asthma/metabolism ; Asthma/pathology ; Biomarkers ; Case-Control Studies ; Cytokines/metabolism ; Eosinophils/immunology ; Eosinophils/metabolism ; Exosomes/metabolism ; Female ; Fibrosis ; Humans ; Janus Kinases/metabolism ; Male ; Middle Aged ; Myocytes, Smooth Muscle/metabolism ; Phosphatidylinositol 3-Kinases/metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; Respiratory Mucosa/immunology ; Respiratory Mucosa/metabolism ; Respiratory Mucosa/pathology ; STAT Transcription Factors/metabolism ; Wound Healing ; Young Adult
    Chemical Substances Biomarkers ; Cytokines ; STAT Transcription Factors ; Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; Janus Kinases (EC 2.7.10.2) ; Proto-Oncogene Proteins c-akt (EC 2.7.11.1)
    Language English
    Publishing date 2018-03-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 645204-8
    ISSN 1365-2222 ; 0954-7894 ; 0960-2178
    ISSN (online) 1365-2222
    ISSN 0954-7894 ; 0960-2178
    DOI 10.1111/cea.13122
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Serum microRNAs catalog asthmatic patients by phenotype.

    Gil-Martínez, M / Rodrigo-Muñoz, J M / Sastre, B / Cañas, J A / García-Latorre, R / Redondo, N / de la Fuente, L / Mínguez, P / Mahíllo-Fernández, I / Sastre, J / Quirce, S / Caballero, M L / Olaguibel, J M / Pozo, V

    Journal of investigational allergology & clinical immunology

    2021  

    Abstract: Background and objective: Asthma is a chronic inflammatory condition of the airways with a complex pathophysiology. Stratification of asthma subtypes into phenotypes and endotypes should move the field forward, making treatment more effective and ... ...

    Abstract Background and objective: Asthma is a chronic inflammatory condition of the airways with a complex pathophysiology. Stratification of asthma subtypes into phenotypes and endotypes should move the field forward, making treatment more effective and personalized. Eosinophils are the key inflammatory cells involved in severe eosinophilic asthma. Due to the health threat posed by eosinophilic asthma, there is a need for reliable biomarkers to identify patients and treat them properly with novel biologics. A promising tool for diagnosis are microRNAs (miRNAs). Objective: The aim of this study was to find serum miRNAs that can phenotype asthmatic patients.
    Material and methods: Serum miRNAs of eosinophilic (N=40) and non-eosinophilic (N=36) asthmatic individuals were evaluated by next-generation sequencing (NGS), specifically miRNAs-seq, and selected miRNAs were validated by RT-qPCR. Pathways enrichment analysis of deregulated miRNAs was performed.
    Results: NGS analysis revealed 15 differentially expressed miRNAs between eosinophilic and non-eosinophilic asthmatic patients, while did not show differences in the miRNome between atopic and non-atopic asthmatic individuals. Of the 15 differentially expressed miRNAs between eosinophilic and non-eosinophilic asthmatics, hsa-miR-26a-1-3p and hsa-miR-376a-3p were validated by RT-qPCR. Expression levels of these two miRNAs were higher in eosinophilic than in non-eosinophilic asthmatics. Furthermore, expression values of hsa-miR-26a-1-3p inversely correlated with peripheral blood eosinophil count and hsa-miR-376a-3p expression values with FeNO values and exacerbations number. Additionally, in silico pathway enrichment analysis revealed that these two miRNAs regulate signaling pathways related with asthma pathogenesis.
    Conclusions: Hsa-miR-26a-1-3p and hsa-miR-376a-3p could be used to distinguish eosinophilic and non-eosinophilic asthmatic patients.
    Language English
    Publishing date 2021-09-06
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 1128657-x
    ISSN 1018-9068
    ISSN 1018-9068
    DOI 10.18176/jiaci.0753
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Eosinophil Response Against Classical and Emerging Respiratory Viruses: COVID-19

    Rodrigo-Muñoz, J M / Sastre, B / Cañas, J A / Gil-Martínez, M / Redondo, N / Del Pozo, V

    J Investig Allergol Clin Immunol

    Abstract: Eosinophils were discovered more than 140 years ago. This polymorphonuclear leukocyte has a very active metabolism, containing numerous intracellular secretory granules that allow it exerts multiple functions in both health and disease status. ... ...

    Abstract Eosinophils were discovered more than 140 years ago. This polymorphonuclear leukocyte has a very active metabolism, containing numerous intracellular secretory granules that allow it exerts multiple functions in both health and disease status. Classically, eosinophils have been considered as important immune cells in the pathogenesis of inflammatory processes such as parasitic helminth infections and allergic or pulmonary diseases like asthma, being always associated to a type 2 immune response; furthermore, in the last years, it has been linked to immune response conferring host protection against fungi, bacteria, and viruses, recognizing them through several molecules such as toll-like receptors (TLRs) or retinoic acid-inducible gene 1 (RIG-1)-like receptor (RLR). The immune protection is exerted through multiple mechanisms and properties of these cells. They contain numerous cytoplasmatic granules that release cationic proteins, cytokines, chemokines and other molecules that contribute to their functions. In addition to their competence as effectors cells, its capabilities like antigen-presenting cell allow them to act in multiple situations promoting diverse aspects of the immune response. This review summarizes diverse aspects of eosinophil biology and mainly, it goes over the mechanisms and roles carried out by eosinophils in host defence against virus infections and vaccines response, focusing the attention in respiratory viruses like the new coronavirus, SARS-CoV-2.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #599708
    Database COVID19

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  9. Article ; Online: White blood cell inflammatory markers are associated with depressive symptoms in a longitudinal study of urban adults.

    Beydoun, M A / Beydoun, H A / Dore, G A / Canas, J-A / Fanelli-Kuczmarski, M T / Evans, M K / Zonderman, A B

    Translational psychiatry

    2016  Volume 6, Issue 9, Page(s) e895

    Abstract: Total white blood cell count (TWBCC) and percentage (%) composition of lymphocytes (PL) or neutrophils (PN) are linked to mid- and late-life depression, though sex-specific temporal relationships between those inflammatory markers and depressive symptoms ...

    Abstract Total white blood cell count (TWBCC) and percentage (%) composition of lymphocytes (PL) or neutrophils (PN) are linked to mid- and late-life depression, though sex-specific temporal relationships between those inflammatory markers and depressive symptoms remain unclear. The association between inflammation and depressive symptoms in longitudinal data on ethnically and socioeconomically diverse urban adults was examined with two hypotheses. In hypothesis 1, we examined the relationship between TWBCC, PL and PN with change in level of depressive symptoms from baseline to follow-up, stratifying by sex. In hypothesis 2, we examined reverse causality, by testing the relationship of depressive symptoms with change in TWBCC, PL and PN. Multiple linear mixed-effects regression models were performed to examine both the hypotheses. The sample sizes of participants (n) and repeated observations (n') were: Hypothesis 1 (n=2009; n'=3501); Hypothesis 2 (n=2081; n'=3560). Among key findings (Hypothesis 1), in women, higher TWBCC was linked to a faster increase in depressive symptom total score (γ1112±s.e.: +0.81±0.28, P=0.003), with a slower increase over time in the positive affect subdomain coupled with faster increases in depressed affect and somatic complaints. Among women, baseline score on somatic complaints was positively associated with low PN (γ01a=+1.61±0.48, P<0.001) and high PL (γ01a=+1.16±0.45, P=0.011), whereas baseline score on positive affect was inversely related to higher PL (γ01a=-0.69±0.28, P=0.017). Results among men indicated that there was a positive cross-sectional relationship between low TWBCC and depressive symptoms, depressed affect and an inverse cross-sectional relationship with positive affect. However, over time, a low TWBCC in men was linked to a higher score on positive affect. There was no evidence of a bi-directional relationship between WBC parameters and depressive symptoms (Hypothesis 2). In sum, TWBCC and related markers were linked to depressive symptoms, mostly among women. Further longitudinal studies are needed to replicate this sex-specific association.
    MeSH term(s) Cross-Sectional Studies ; Databases, Factual ; Depression/immunology ; Female ; Humans ; Inflammation ; Leukocyte Count ; Linear Models ; Longitudinal Studies ; Lymphocyte Count ; Male ; Middle Aged ; Multivariate Analysis ; Neutrophils/cytology ; Sex Factors ; Urban Population
    Language English
    Publishing date 2016-09-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2609311-X
    ISSN 2158-3188 ; 2158-3188
    ISSN (online) 2158-3188
    ISSN 2158-3188
    DOI 10.1038/tp.2016.180
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  10. Article ; Online: Racial disparities in adult all-cause and cause-specific mortality among us adults: mediating and moderating factors.

    Beydoun, M A / Beydoun, H A / Mode, N / Dore, G A / Canas, J A / Eid, S M / Zonderman, A B

    BMC public health

    2016  Volume 16, Issue 1, Page(s) 1113

    Abstract: Background: Studies uncovering factors beyond socio-economic status (SES) that would explain racial and ethnic disparities in mortality are scarce.: Methods: Using prospective cohort data from the Third National Health and Nutrition Examination ... ...

    Abstract Background: Studies uncovering factors beyond socio-economic status (SES) that would explain racial and ethnic disparities in mortality are scarce.
    Methods: Using prospective cohort data from the Third National Health and Nutrition Examination Survey (NHANES III), we examined all-cause and cause-specific mortality disparities by race, mediation through key factors and moderation by age (20-49 vs. 50+), sex and poverty status. Cox proportional hazards, discrete-time hazards and competing risk regression models were conducted (N = 16,573 participants, n = 4207 deaths, Median time = 170 months (1-217 months)).
    Results: Age, sex and poverty income ratio-adjusted hazard rates were higher among Non-Hispanic Blacks (NHBs) vs. Non-Hispanic Whites (NHW). Within the above-poverty young men stratum where this association was the strongest, the socio-demographic-adjusted HR = 2.59, p < 0.001 was only partially attenuated by SES and other factors (full model HR = 2.08, p = 0.003). Income, education, diet quality, allostatic load and self-rated health, were among key mediators explaining NHB vs. NHW disparity in mortality. The Hispanic paradox was observed consistently among women above poverty (young and old). NHBs had higher CVD-related mortality risk compared to NHW which was explained by factors beyond SES. Those factors did not explain excess risk among NHB for neoplasm-related death (fully adjusted HR = 1.41, 95 % CI: 1.02-2.75, p = 0.044). Moreover, those factors explained the lower risk of neoplasm-related death among MA compared to NHW, while CVD-related mortality risk became lower among MA compared to NHW upon multivariate adjustment.
    Conclusions: In sum, racial/ethnic disparities in all-cause and cause-specific mortality (particularly cardiovascular and neoplasms) were partly explained by socio-demographic, SES, health-related and dietary factors, and differentially by age, sex and poverty strata.
    MeSH term(s) Adult ; Aged ; Allostasis ; Cardiovascular Diseases/mortality ; Cause of Death ; Diet ; Educational Status ; Ethnicity ; Female ; Health Status Disparities ; Humans ; Income ; Male ; Middle Aged ; Neoplasms/mortality ; Nutrition Surveys ; Poverty ; Proportional Hazards Models ; Prospective Studies ; Racial Groups ; Risk ; Social Class ; United States/epidemiology ; Young Adult
    Language English
    Publishing date 2016-10-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041338-5
    ISSN 1471-2458 ; 1471-2458
    ISSN (online) 1471-2458
    ISSN 1471-2458
    DOI 10.1186/s12889-016-3744-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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