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  1. Article ; Online: Treg in inborn errors of immunity: gaps, knowns and future perspectives.

    Kennedy-Batalla, Rebeca / Acevedo, Daniel / Luo, Yiyi / Esteve-Solé, Ana / Vlagea, Alexandru / Correa-Rocha, Rafael / Seoane-Reula, Ma Elena / Alsina, Laia

    Frontiers in immunology

    2024  Volume 14, Page(s) 1278759

    Abstract: Regulatory T cells (Treg) are essential for immune balance, preventing overreactive responses and autoimmunity. Although traditionally characterized as CD4+CD25+ ... ...

    Abstract Regulatory T cells (Treg) are essential for immune balance, preventing overreactive responses and autoimmunity. Although traditionally characterized as CD4+CD25+CD127
    MeSH term(s) Humans ; T-Lymphocytes, Regulatory ; Autoimmune Diseases ; Autoimmunity ; Databases, Factual ; Mutation
    Language English
    Publishing date 2024-01-08
    Publishing country Switzerland
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1278759
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Changes in Treg and Breg cells in a healthy pediatric population.

    Luo, Yiyi / Acevedo, Daniel / Vlagea, Alexandru / Codina, Anna / García-García, Ana / Deyà-Martínez, Angela / Martí-Castellote, Celia / Esteve-Solé, Ana / Alsina, Laia

    Frontiers in immunology

    2023  Volume 14, Page(s) 1283981

    Abstract: The interpretation of clinical diagnostic results in suspected inborn errors of immunity, including Tregopathies, is hampered by the lack of age-stratified reference values for regulatory T cells (Treg) in the pediatric population and a consensus on ... ...

    Abstract The interpretation of clinical diagnostic results in suspected inborn errors of immunity, including Tregopathies, is hampered by the lack of age-stratified reference values for regulatory T cells (Treg) in the pediatric population and a consensus on which Treg immunophenotype to use. Regulatory B cells (Breg) are an important component of the regulatory system that have been poorly studied in the pediatric population. We analyzed (1) the correlation between the three immunophenotypic definitions of Treg (CD4
    MeSH term(s) Humans ; Child ; Child, Preschool ; T-Lymphocytes, Regulatory ; B-Lymphocytes, Regulatory ; Flow Cytometry ; Antigens, CD19 ; Forkhead Transcription Factors/genetics
    Chemical Substances Antigens, CD19 ; Forkhead Transcription Factors
    Language English
    Publishing date 2023-11-21
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1283981
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Prison as a driver of recent transmissions of multidrug-resistant tuberculosis in Callao, Peru: a cross-sectional study.

    Utpatel, Christian / Zavaleta, Milagros / Rojas-Bolivar, Daniel / Mühlbach, Andreas / Picoy, Janet / Portugal, Walter / Esteve-Solé, Ana / Alsina, Laia / Miotto, Paolo / Bartholomeu, Daniella C / Sanchez, Jorge / Cuadros, Diego F / Alarcon, Jorge O / Niemann, Stefan / Huaman, Moises A

    Lancet regional health. Americas

    2024  Volume 31, Page(s) 100674

    Abstract: Background: We sought to identify resistance patterns and key drivers of recent multidrug-resistant tuberculosis (MDR-TB) transmission in a TB-prevalent area in Peru.: Methods: Cross-sectional study including MDR : Findings: 171 unique MDR-Mtbc ... ...

    Abstract Background: We sought to identify resistance patterns and key drivers of recent multidrug-resistant tuberculosis (MDR-TB) transmission in a TB-prevalent area in Peru.
    Methods: Cross-sectional study including MDR
    Findings: 171 unique MDR-Mtbc strains were included; 22 (13%) had additional fluoroquinolone resistance and were classified as pre-XDR. Six strains (3.5%) harboured bedaquiline (BDQ) resistance mutations and were classified as MDR + BDQ. 158 (92%) Mtbc strains belonged to lineage 4 and 13 (8%) to lineage 2. Using a cluster threshold of ≤5 SNPs, 98 (57%) strains were grouped in one of the 17 D5 clusters indicative of recent transmission, ranging in size from 2 to the largest cluster formed by 53 4.3.3 strains (group_1). Lineage 4.3.3 strains showed the overall highest cluster rate (43%). In multivariate analyses, current or previous imprisonment was independently associated with being part of any MDR-TB transmission clusters (adjusted prevalence ratio [aPR], 1.45; 95% CI, 1.09-1.92).
    Interpretation: Pre-XDR-TB emerged in more than 10% of the MDR-TB strains investigated. Transmission of 4.3.3 Mtbc strains especially of the dominant group_1 clone is a major driver of the MDR-TB epidemic in Callao. Current or previous imprisonment was linked to recent MDR-TB transmissions, indicating an important role of prisons in driving the MDR-TB epidemic.
    Funding: This work was supported in part by the ERANet-LAC Network of the European Union, Latin America and the Caribbean Countries on Joint Innovation and Research Activities, and FONDECYT. Additional support was received from Leibniz Science Campus Evolutionary Medicine of the Lung, the Deutsche Forschungsgemeinschaft (German Research Foundation, under Germany's Excellence Strategy-EXC 2167 Precision Medicine in Inflammation), and the Research Training Group 2501 TransEvo.
    Language English
    Publishing date 2024-01-20
    Publishing country England
    Document type Journal Article
    ISSN 2667-193X
    ISSN (online) 2667-193X
    DOI 10.1016/j.lana.2024.100674
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Acute and long-term immune responses to SARS-CoV-2 infection in unvaccinated children and young adults with inborn errors of immunity.

    García-García, Ana / Fortuny, Claudia / Fumadó, Victoria / Jordan, Iolanda / Ruiz-López, Laura / González-Navarro, Europa Azucena / Egri, Natalia / Esteve-Solé, Ana / Luo, Yiyi / Vlagea, Alexandru / Cabedo, Manel Monsonís / Launes, Cristian / Soler, Aleix / Codina, Anna / Juan, Manel / Pascal, Mariona / Deyà-Martínez, Angela / Alsina, Laia

    Frontiers in immunology

    2023  Volume 14, Page(s) 1084630

    Abstract: Purpose: To describe SARS-CoV-2 infection outcome in unvaccinated children and young adults with inborn errors of immunity (IEI) and to compare their specific acute and long-term immune responses with a sex-, age-, and severity-matched healthy ... ...

    Abstract Purpose: To describe SARS-CoV-2 infection outcome in unvaccinated children and young adults with inborn errors of immunity (IEI) and to compare their specific acute and long-term immune responses with a sex-, age-, and severity-matched healthy population (HC).
    Methods: Unvaccinated IEI patients up to 22 years old infected with SARS-CoV-2 were recruited along with a cohort of HC. SARS-CoV-2 serology and ELISpot were performed in the acute phase of infection (up to 6 weeks) and at 3, 6, 9, and 12 months.
    Results: Twenty-five IEI patients (median age 14.3 years, min.-max. range 4.5-22.8; 15/25 males; syndromic combined immunodeficiencies: 48.0%, antibody deficiencies: 16.0%) and 17 HC (median age 15.3 years, min.-max. range 5.4-20.0; 6/17 males, 35.3%) were included. Pneumonia occurred in 4/25 IEI patients. In the acute phase SARS-CoV-2 specific immunoglobulins were positive in all HC but in only half of IEI in whom it could be measured (n=17/25): IgG
    Conclusions: Our IEI pediatric cohort had a higher COVID-19 pneumonia rate than the general age-range population, with lower humoral and cellular responses in the acute phase (even lower compared to the reported IEI serological response after SARS-CoV-2 vaccination), and weaker humoral responses at 6 months after infection compared with HC.
    MeSH term(s) Male ; Humans ; Child ; Young Adult ; Adolescent ; COVID-19 ; SARS-CoV-2 ; COVID-19 Vaccines ; Immunoglobulin M ; Primary Immunodeficiency Diseases ; Immunity ; Immunoglobulin A ; Immunoglobulin G
    Chemical Substances COVID-19 Vaccines ; Immunoglobulin M ; Immunoglobulin A ; Immunoglobulin G
    Language English
    Publishing date 2023-01-20
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1084630
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Dissecting the transcriptional program of phosphomannomutase 2-deficient cells: Lymphoblastoide B cell lines as a valuable model for congenital disorders of glycosylation studies.

    Parrado, Antonio / Rubio, Gonzalo / Serrano, Mercedes / De la Morena-Barrio, María Eugenia / Ibáñez-Micó, Salvador / Ruiz-Lafuente, Natalia / Schwartz-Albiez, Reinhard / Esteve-Solé, Ana / Alsina, Laia / Corral, Javier / Hernández-Caselles, Trinidad

    Glycobiology

    2021  Volume 32, Issue 2, Page(s) 84–100

    Abstract: Congenital disorders of glycosylation (CDG) include 150 genetically and clinically heterogeneous diseases, showing significant glycoprotein hypoglycosylation that leads to pathological consequences in multiple organs and systems whose underlying ... ...

    Abstract Congenital disorders of glycosylation (CDG) include 150 genetically and clinically heterogeneous diseases, showing significant glycoprotein hypoglycosylation that leads to pathological consequences in multiple organs and systems whose underlying mechanisms are not yet understood. A few cellular and animal models have been used to study specific CDG characteristics, although they have given limited information due to the few CDG mutations tested and the still missing comprehensive molecular and cellular basic research. Here, we provide specific gene expression profiles, based on ribonucleic acid (RNA) microarray analysis, together with some biochemical and cellular characteristics of a total of nine control Epstein-Barr virus-transformed lymphoblastoid B cell lines (B-LCL) and 13 CDG B-LCL from patients carrying severe mutations in the phosphomannomutase 2 (PMM2) gene, strong serum protein hypoglycosylation and neurological symptoms. Significantly dysregulated genes in PMM2-CDG cells included those regulating stress responses, transcription factors, glycosylation, motility, cell junction and, importantly, those related to development and neuronal differentiation and synapse, such as carbonic anhydrase 2 (CA2) and ADAM23. PMM2-CDG-associated biological consequences involved the unfolded protein response, RNA metabolism and the endoplasmic reticulum, Golgi apparatus and mitochondria components. Changes in the transcriptional and CA2 protein levels are consistent with the CDG physiopathology. These results demonstrate the global transcriptional impact in phosphomannomutase 2-deficient cells, reveal CA2 as a potential cellular biomarker and confirm B-LCL as an advantageous model for CDG studies.
    MeSH term(s) Animals ; Cell Line ; Congenital Disorders of Glycosylation/genetics ; Congenital Disorders of Glycosylation/metabolism ; Epstein-Barr Virus Infections ; Glycosylation ; Herpesvirus 4, Human/genetics ; Herpesvirus 4, Human/metabolism ; Humans ; Phosphotransferases (Phosphomutases)/deficiency ; RNA/metabolism
    Chemical Substances RNA (63231-63-0) ; Phosphotransferases (Phosphomutases) (EC 5.4.2.-) ; phosphomannomutase (EC 5.4.2.8)
    Language English
    Publishing date 2021-07-19
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1067689-2
    ISSN 1460-2423 ; 0959-6658
    ISSN (online) 1460-2423
    ISSN 0959-6658
    DOI 10.1093/glycob/cwab087
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Single-cycle rituximab-induced immunologic changes in children: Enhanced in neuroimmunologic disease?

    Deyà-Martínez, Angela / Gordón, Yadira / Molina-Anguita, Cristina / Vlagea, Alexandru / Piquer, Monica / Juan, Manel / Esteve-Solé, Ana / Antón, Jordi / Madrid, Álvaro / García-García, Ana / Plaza, Ana M / Armangue, Thaís / Alsina, Laia

    Neurology(R) neuroimmunology & neuroinflammation

    2020  Volume 7, Issue 4

    Abstract: Objective: To investigate the immunologic impact of a single cycle of rituximab (RTX) in children and adolescents with immune-mediated disorders, we evaluated B cells and immunoglobulin levels of 20 patients with neuroimmunologic, nephrologic, ... ...

    Abstract Objective: To investigate the immunologic impact of a single cycle of rituximab (RTX) in children and adolescents with immune-mediated disorders, we evaluated B cells and immunoglobulin levels of 20 patients with neuroimmunologic, nephrologic, dermatologic, and rheumatologic disorders treated under recommended guidelines.
    Methods: Retrospective study of immunologic changes in children (aged ≤18 years) diagnosed with immune-mediated disorders in which RTX was prescribed between June 2014 and February 2019. Patients were excluded if they had prior diagnosis of malignant disease or primary immunodeficiency. Patients were clinically and immunologically followed up every 3 months. Only patients having received a single cycle of RTX and with a follow-up greater than 12 months were included in the analysis of persistent dysgammaglobulinemia.
    Results: Twenty children were included. Median age at RTX treatment was 12.8 years (interquartile range [IQR] 6.6-15.5 years). Median follow-up was 12.6 months (IQR 10.2-24 months). Of the 14 patients eligible for persistent dysgammaglobulinemia analysis (3 had received RTX retreatment, 2 had <12 months post-RTX follow-up, and in 1 data for this time point was missing), 2/14 (14%) remained with complete B-cell depletion, and 5/14 (36%) had dysgammaglobulinemia. Patients with dysgammaglobulinemia were younger (7.8 vs 15.6 years,
    Conclusion: In our cohort, single-cycle RTX-induced dysgammaglobulinemia was enhanced in patients with neuroimmunologic diseases. Further studies are needed to confirm this observation.
    MeSH term(s) Adolescent ; B-Lymphocytes/drug effects ; Child ; Child, Preschool ; Dysgammaglobulinemia/chemically induced ; Female ; Follow-Up Studies ; Humans ; Immune System Diseases/drug therapy ; Immunologic Factors/administration & dosage ; Immunologic Factors/adverse effects ; Male ; Retrospective Studies ; Rituximab/administration & dosage ; Rituximab/adverse effects
    Chemical Substances Immunologic Factors ; Rituximab (4F4X42SYQ6)
    Language English
    Publishing date 2020-05-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2767740-0
    ISSN 2332-7812 ; 2332-7812
    ISSN (online) 2332-7812
    ISSN 2332-7812
    DOI 10.1212/NXI.0000000000000724
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: B Regulatory Cells: Players in Pregnancy and Early Life.

    Esteve-Solé, Ana / Luo, Yiyi / Vlagea, Alexandru / Deyà-Martínez, Ángela / Yagüe, Jordi / Plaza-Martín, Ana María / Juan, Manel / Alsina, Laia

    International journal of molecular sciences

    2018  Volume 19, Issue 7

    Abstract: Pregnancy and early infancy represent two very particular immunological states. During pregnancy, the haploidentical fetus and the pregnant women develop tolerance mechanisms to avoid rejection; then, just after birth, the neonatal immune system must ... ...

    Abstract Pregnancy and early infancy represent two very particular immunological states. During pregnancy, the haploidentical fetus and the pregnant women develop tolerance mechanisms to avoid rejection; then, just after birth, the neonatal immune system must modulate the transition from the virtually sterile but haploidentical uterus to a world full of antigens and the rapid microbial colonization of the mucosa. B regulatory (Breg) cells are a recently discovered B cell subset thought to play a pivotal role in different conditions such as chronic infections, autoimmunity, cancer, and transplantation among others in addition to pregnancy. This review focuses on the role of Breg cells in pregnancy and early infancy, two special stages of life in which recent studies have positioned Breg cells as important players.
    MeSH term(s) B-Lymphocytes, Regulatory/metabolism ; Disease ; Female ; Health ; Humans ; Immune System/metabolism ; Infant, Newborn ; Pregnancy
    Language English
    Publishing date 2018-07-19
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms19072099
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Expected impact of immunomodulatory agents during pregnancy: A newborn's perspective.

    Luo, Yiyi / Acevedo, Daniel / Baños, Núria / Pluma, Andrea / Castellanos-Moreira, Raúl / Moreno, Estefania / Rodríguez-García, Sebastian / Deyà-Martínez, Angela / García-García, Ana / Quesada-Masachs, Estefania / Torres, Mireia / Casellas, Manel / Grados, Dolors / Martí-Castellote, Celia / Antón, Jordi / Vlagea, Alexandru / Juan, Manel / Esteve-Solé, Ana / Alsina, Laia

    Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology

    2022  Volume 34, Issue 2, Page(s) e13911

    Abstract: The neonatal immune ontogeny begins during pregnancy to ensure that the neonate is well-suited for perinatal life. It prioritizes Th2/M2 and regulatory responses over Th/M1 activity to avoid excessive inflammatory responses and to ensure immune tolerance ...

    Abstract The neonatal immune ontogeny begins during pregnancy to ensure that the neonate is well-suited for perinatal life. It prioritizes Th2/M2 and regulatory responses over Th/M1 activity to avoid excessive inflammatory responses and to ensure immune tolerance and homeostasis. Newborns also present increased Th17/Th22 responses providing effective anti-fungal immunity and mucosal protection. Intrauterine exposure to immune modulatory drugs with the placental transfer may influence the natural course of the fetal immune development. The vertical transfer of both biological therapy and small molecules begins during the first trimester through neonatal Fc receptor or placental diffusion, respectively, reaching its maximum transfer potential during the third trimester of pregnancy. Most of the biological therapy have a prolonged half-life in newborn's blood, being detectable in infants up to 12 months after birth (usually 6-9 months). The use of immunomodulators during pregnancy is gaining global interest. Current evidence mainly reports birth-related outcomes without exhaustive analysis of the on-target side effect on the perinatal immune system ontogeny, the infection risk, or the immune dysregulation. The present review will focus on: (1) the main characteristics of the perinatal immune system to understand its specific features and vulnerabilities to immune modulation; (2) the mechanisms of placental transfer of immunomodulators; and (3) the immune changes reported to date in newborns exposed to immunomodulators with emphasis on the current concerns and gaps in knowledge.
    MeSH term(s) Infant ; Pregnancy ; Infant, Newborn ; Humans ; Female ; Placenta ; Immunomodulating Agents ; Parturition
    Chemical Substances Immunomodulating Agents
    Language English
    Publishing date 2022-11-22
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 1057059-7
    ISSN 1399-3038 ; 0905-6157 ; 0906-5784
    ISSN (online) 1399-3038
    ISSN 0905-6157 ; 0906-5784
    DOI 10.1111/pai.13911
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Characterization of the Highly Prevalent Regulatory CD24

    Esteve-Solé, Ana / Teixidó, Irene / Deyà-Martínez, Angela / Yagüe, Jordi / Plaza-Martín, Ana M / Juan, Manel / Alsina, Laia

    Frontiers in immunology

    2017  Volume 8, Page(s) 201

    Abstract: The newborn's immune system must transition from a sterile haploidentical uterus to the world full of antigens. Regulatory B-cells (Breg; broadly defined as ... ...

    Abstract The newborn's immune system must transition from a sterile haploidentical uterus to the world full of antigens. Regulatory B-cells (Breg; broadly defined as CD19
    Language English
    Publishing date 2017
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606827-8
    ISSN 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2017.00201
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Primary immunodeficiency and chronic mucocutaneous candidiasis: pathophysiological, diagnostic, and therapeutic approaches.

    Egri, Natalia / Esteve-Solé, Ana / Deyà-Martínez, Àngela / Ortiz de Landazuri, Iñaki / Vlagea, Alexandru / García, A P / Cardozo, Celia / Garcia-Vidal, Carolina / Bartolomé, Clara San / Español-Rego, Marta / Yiyi, L / Bosch-Amate, Xavier / Ferrando, J / Yagüe, Jordi / Juan, Manel / Alsina, Laia

    Allergologia et immunopathologia

    2021  Volume 49, Issue 1, Page(s) 118–127

    Abstract: Chronic mucocutaneous candidiasis (CMC) is characterized by a chronic or recurrent non-invasive infection, mainly due ... ...

    Abstract Chronic mucocutaneous candidiasis (CMC) is characterized by a chronic or recurrent non-invasive infection, mainly due to
    MeSH term(s) Azoles/therapeutic use ; Candida/immunology ; Candida/isolation & purification ; Candidiasis, Chronic Mucocutaneous/diagnosis ; Candidiasis, Chronic Mucocutaneous/genetics ; Candidiasis, Chronic Mucocutaneous/immunology ; Candidiasis, Chronic Mucocutaneous/therapy ; Humans ; Interleukin-17/genetics ; Interleukin-17/immunology ; Janus Kinase Inhibitors/therapeutic use ; Mutation ; Primary Immunodeficiency Diseases/diagnosis ; Primary Immunodeficiency Diseases/genetics ; Primary Immunodeficiency Diseases/immunology ; Primary Immunodeficiency Diseases/therapy ; STAT1 Transcription Factor/genetics ; STAT1 Transcription Factor/immunology ; Th17 Cells/immunology ; Th17 Cells/pathology
    Chemical Substances Azoles ; Interleukin-17 ; Janus Kinase Inhibitors ; STAT1 Transcription Factor ; STAT1 protein, human
    Language English
    Publishing date 2021-01-02
    Publishing country Singapore
    Document type Journal Article ; Review
    ZDB-ID 193144-1
    ISSN 1578-1267 ; 0301-0546
    ISSN (online) 1578-1267
    ISSN 0301-0546
    DOI 10.15586/aei.v49i1.20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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