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Ahor HS, Vivekanandan M, Harelimana JDD, Owusu DO, Adankwah E, Seyfarth J, Phillips R, Jacobsen M. Immunopathology in human pulmonary tuberculosis: Inflammatory changes in the plasma milieu and impaired host immune cell functions. Immunology 2024; 172:198-209. [PMID: 38317426 DOI: 10.1111/imm.13761] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/17/2024] [Indexed: 02/07/2024] Open
Abstract
Host immune response is key for protection in tuberculosis, but the causative agent, Mycobacterium (M.) tuberculosis, manages to survive despite immune surveillance. Key mechanisms of immune protection have been identified, but the role of immunopathology in the peripheral blood of tuberculosis patients remains unclear. Tuberculosis immunopathology in the blood is characterised by patterns of immunosuppression and hyperinflammation. These seemingly contradictory findings and the pronounced heterogeneity made it difficult to interpret the results from previous studies and to derive implications of immunopathology. However, novel approaches based on comprehensive data analyses and revitalisation of an ancient plasma milieu in vitro assay connected inflammation with immunosuppressive factors in tuberculosis. Moreover, interrelations between the aberrant plasma milieu and immune cell pathology were observed. This review provides an overview of studies on changes in plasma milieu and discusses recent findings linking plasma factors to T-cell and monocyte/macrophage pathology in pulmonary tuberculosis patients.
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Affiliation(s)
- Hubert Senanu Ahor
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Monika Vivekanandan
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Jean De Dieu Harelimana
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Richard Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
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2
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Acheampong I, Minadzi D, Laing EF, Frimpong M, Vivekanandan MM, Yeboah A, Adankwah E, Aniagyei W, Arthur JF, Lamptey M, Abass MK, Kumbel F, Osei-Yeboah F, Gawusu A, Debrah LB, Owusu DO, Debrah A, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. Differences in PPD- and mitogen-induced T-cell activation marker expression characterize immunopathology in acute tuberculosis patients. Eur J Clin Microbiol Infect Dis 2024; 43:611-616. [PMID: 38167987 PMCID: PMC10917863 DOI: 10.1007/s10096-023-04741-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/15/2023] [Indexed: 01/05/2024]
Abstract
Impaired T-cell responses to mitogens and high T-cell activation marker (TAM) expression on Mycobacterium tuberculosis-specific T-cells characterize immunopathology in patients with tuberculosis (TB). In a study of patients with TB (n = 60) and asymptomatic contacts (controls, n = 37), we found that TB patients had higher CD38+ T-cell proportions specific for M. tuberculosis protein (PPDMtb), yet total proportions of PPDMtb-specific T-cells were comparable. Notably, both activated (CD38+) and total IFN-γ+ T-cells from TB patients had lower mitogen (phytohemagglutinin, PHA)-induced responses. This impaired mitogen response improved the classification efficacy of the TAM-TB assay, especially employing the PPD/PHA-induced T-cell ratio.
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Affiliation(s)
- Isaac Acheampong
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Difery Minadzi
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Edwin F Laing
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology KNUST, Kumasi, Ghana
| | - Michael Frimpong
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology KNUST, Kumasi, Ghana
| | | | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Joseph F Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Millicent Lamptey
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | | | | | - Amidu Gawusu
- Sene West Health Directorate, Kwame Danso, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Alexander Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, 40225, Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, 40225, Duesseldorf, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology KNUST, Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine-University, 40225, Duesseldorf, Germany.
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Israel S, Seyfarth J, Nolte T, Drexler HCA, Fuellen G, Boiani M. Intracellular fraction of zona pellucida protein 3 is required for the oocyte-to-embryo transition in mice. Mol Hum Reprod 2023; 29:gaad038. [PMID: 37930049 PMCID: PMC10640839 DOI: 10.1093/molehr/gaad038] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/20/2023] [Indexed: 11/07/2023] Open
Abstract
In oocyte biology, the zona pellucida has long been known to operate three extracellular functions downstream of the secretory pathway, namely, encasing the oocytes in ovarian follicles, mediating sperm-oocyte interaction, and preventing premature embryo contact with oviductal epithelium. The present study uncovers a fourth function that is fundamentally distinct from the other three, being critical for embryonic cell survival in mice. Intriguingly, the three proteins of the mouse zona pellucida (ZP1, ZP2, ZP3) were found abundantly present also inside the embryo 4 days after fertilization, as shown by mass spectrometry, immunoblotting, and immunofluorescence. Contrary to current understanding of the roles of ZP proteins, ZP3 was associated more with the cytoskeleton than with secretory vesicles in the subcortical region of metaphase II oocytes and zygotes, and was excluded from regions of cell-cell contact in cleavage-stage embryos. Trim-away-mediated knockdown of ZP3 in fertilized oocytes hampered the first zygotic cleavage, while ZP3 overexpression supported blastocyst formation. Transcriptome analysis of ZP3-knockdown embryos pointed at defects of cytoplasmic translation in the context of embryonic genome activation. This conclusion was supported by reduced protein synthesis in the ZP3-knockdown and by the lack of cleavage arrest when Trim-away was postponed from the one-cell to the late two-cell stage. These data place constraints on the notion that zona proteins only operate in the extracellular space, revealing also a role during the oocyte-to-embryo transition. Ultimately, these data recruit ZP3 into the family of maternal factors that contribute to developmental competence of mouse oocytes.
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Affiliation(s)
- Steffen Israel
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Julia Seyfarth
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Thomas Nolte
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Hannes C A Drexler
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Georg Fuellen
- Rostock University Medical Center, Institute for Biostatistics and Informatics in Medicine and Aging Research (IBIMA), Rostock, Germany
| | - Michele Boiani
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
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Acheampong I, Minadzi D, Adankwah E, Aniagyei W, Vivekanandan MM, Yeboah A, Arthur JF, Lamptey M, Abass MK, Kumbel F, Osei-Yeboah F, Gawusu A, Laing EF, Batsa Debrah L, Owusu DO, Debrah A, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. Diminished Interleukin-7 receptor expression on T-cell subsets in tuberculosis patients. Hum Immunol 2023; 84:543-550. [PMID: 37580215 DOI: 10.1016/j.humimm.2023.08.141] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/03/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
Immunopathology in human tuberculosis affects T-cell phenotype and functions. Previous studies identified impaired T-cell sensitivity to Interleukin (IL)-7 accompanied by lower IL-7 receptor α-chain (IL-7Rα) expression in patients with acute tuberculosis. In the present study, we characterized affected T-cell subsets and determined the influence of tuberculosis disease severity and treatment response. Tuberculosis patients (n = 89) as well as age- and gender-matched asymptomatic contacts (controls, n = 47) were recruited in Ghana. Mycobacterium (M.) tuberculosis sputum burden was monitored prior to and during treatment. Blood samples from all patients and controls were analyzed for IL-7Rα expression and T-cell markers by multi-colour flow cytometry. CD4+ and CD8+ T-cells of tuberculosis patients showed generally lower IL-7Rα expression as compared to controls. Concomitantly, tuberculosis patients had higher proportions of naïve and lower proportions of memory CD4+ T-cells. Notably, a subset of CD27 positive central memory T-cells (Tcm), which lacked IL-7Rα expression was enriched in tuberculosis patients as compared to controls. M. tuberculosis sputum burden was not associated with differences in IL-7Rα expression. Treatment duration and response showed no clear effects although IL-7Rα expression patterns were highly variable. These results suggested generally impaired generation of memory CD4+ T-cells and enrichment of a Tcm subset without IL-7Rα expression in patients with tuberculosis.
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Affiliation(s)
- Isaac Acheampong
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Difery Minadzi
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Joseph F Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Millicent Lamptey
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | | | | | - Amidu Gawusu
- Sene West Health Directorate, Kwame Danso, Ghana
| | - Edwin F Laing
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Alexander Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana; School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany.
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Ahor HS, Schulte R, Adankwah E, Harelimana JDD, Minadzi D, Acheampong I, Vivekanandan MM, Aniagyei W, Yeboah A, Arthur JF, Lamptey M, Abass MK, Kumbel F, Osei-Yeboah F, Gawusu A, Debrah LB, Owusu DO, Debrah A, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. Monocyte pathology in human tuberculosis is due to plasma milieu changes and aberrant STAT signalling. Immunology 2023; 170:154-166. [PMID: 37219921 DOI: 10.1111/imm.13659] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/29/2023] [Indexed: 05/24/2023] Open
Abstract
Monocyte-derived macrophages contribute centrally to immune protection in Mycobacterium tuberculosis infection and changes in monocyte phenotype characterize immunopathology in tuberculosis patients. Recent studies highlighted an important role of the plasma milieu in tuberculosis immunopathology. Here, we investigated monocyte pathology in patients with acute tuberculosis and determined tuberculosis plasma milieu effects on phenotype as well as cytokine signalling of reference monocytes. Patients with tuberculosis (n = 37) and asymptomatic contacts (controls n = 35) were recruited as part of a hospital-based study in the Ashanti region of Ghana. Multiplex flow cytometry phenotyping of monocyte immunopathology was performed and effects of individual blood plasma samples on reference monocytes prior to and during treatment were characterized. Concomitantly, cell signalling pathways were analysed to elucidate underlying mechanisms of plasma effects on monocytes. Multiplex flow cytometry visualization characterized changes in monocyte subpopulations and detected higher expression of CD40, CD64 and PD-L1 in monocytes from tuberculosis patients as compared to controls. Aberrant expression normalized during anti-mycobacterial treatment and also CD33 expression decreased markedly. Notably, higher CD33, CD40 and CD64 expression was induced in reference monocytes when cultured in the presence of plasma samples from tuberculosis patients as compared to controls. STAT signalling pathways were affected by the aberrant plasma milieu and higher levels of STAT3 and STAT5 phosphorylation was found in tuberculosis plasma-treated reference monocytes. Importantly, high pSTAT3 levels were associated with high CD33 expression and pSTAT5 correlated with CD40 as well as CD64 expression. These results suggested plasma milieu effects with potential implications on monocyte phenotype and function in acute tuberculosis.
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Affiliation(s)
- Hubert Senanu Ahor
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, Germany
| | - Rebecca Schulte
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, Germany
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Jean De Dieu Harelimana
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, Germany
| | - Difery Minadzi
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Isaac Acheampong
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Joseph F Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Millicent Lamptey
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | | | | | - Amidu Gawusu
- Sene West Health Directorate, Kwame Danso, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Alexander Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, Germany
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Adjei JK, Aniagyei W, Adankwah E, Seyfarth J, Mayatepek E, Berko DA, Ackam N, Annani-Akollor ME, Sakyi SA, Amoako YA, Owusu D, Jacobsen M, Phillips RO. Memory B-cells are enriched in the blood of patients with acute Buruli ulcer disease: a prospective observational study. BMC Infect Dis 2023; 23:393. [PMID: 37308884 DOI: 10.1186/s12879-023-08370-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 06/03/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Buruli ulcer disease (BUD) caused by Mycobacterium (M.) ulcerans is characterized by necrotic skin lesions. As for other mycobacterial infections, e.g., tuberculosis, the immune response is important for host protection. B-cells may play a role in antimycobacterial immunity but studies characterizing the B-cell repertoire and memory generation in BUD and during the course of treatment are scarce. METHODS We investigated the adaptive immune cell repertoire in children with BUD and healthy matched controls by flow cytometry. Analyses prior to treatment, also in a study group of patients with tuberculosis, as well as three time points during BUD treatment (i.e., week 8, 16, and 32) were performed. In addition, BUD disease severity as well as treatment response were analysed for association with B-cell repertoire differences. RESULTS Children with BUD had comparable total B- and T-cell proportions but differed largely in B-cell subsets. Memory B-cell (B mem) proportions were higher in children with BUD whereas regulatory B-cell (B reg) proportions were lower as compared to healthy controls and tuberculosis patients. Lower naïve (B naïve) and higher transitional B-cell (B trans) proportions characterized children with BUD in comparison with tuberculosis patients. Under treatment, B mem proportions decreased significantly whereas proportions of B reg and B naive increased concomitantly in children with BUD. Also, we found significant correlation between lesion size and B mem as well as B reg. However, we did not detect associations between treatment efficacy and B-cell proportions. CONCLUSIONS These results suggest a role of B-cell subsets in the immune response against M. ulcerans. Furthermore, changes in B-cell subset proportions may be used as markers for treatment monitoring in BUD.
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Affiliation(s)
- Jonathan Kofi Adjei
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
- Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Daniel Antwi Berko
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Nancy Ackam
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Max Efui Annani-Akollor
- Department of Molecular Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Samuel Asamoah Sakyi
- Department of Molecular Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Yaw Ampem Amoako
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
- Department of Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Dorcas Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Richard Odame Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana.
- Department of Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana.
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7
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Owusu DO, Adankwah E, Aniagyei W, Acheampong I, Minadzi D, Yeboah A, Arthur JF, Lamptey M, Vivekanandan MM, Abass MK, Kumbel F, Osei-Yeboah F, Gawusu A, Batsa Debrah L, Debrah A, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. BCG-Vaccinated Children with Contact to Tuberculosis Patients Show Delayed Conversion of Mycobacterium tuberculosis-Specific IFN-γ Release. Vaccines (Basel) 2023; 11:vaccines11040855. [PMID: 37112767 PMCID: PMC10146292 DOI: 10.3390/vaccines11040855] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/12/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Mycobacterium (M.) bovis BCG vaccination is recommended for healthy babies after birth in several countries with a high prevalence of tuberculosis, including Ghana. Previous studies showed that BCG vaccination prevents individuals from developing severe clinical manifestations of tuberculosis, but BCG vaccination effects on the induction of IFN-γ after M. tuberculosis infection have hardly been investigated. Here, we performed IFN-γ-based T-cell assays (i.e., IFN-γ Release Assay, IGRA; T-cell activation and maturation marker assay, TAM-TB) in children who had contact with index tuberculosis patients (contacts). These contacts were classified as either being BCG vaccinated at birth (n = 77) or non-BCG-vaccinated (n = 17) and were followed up at three timepoints for a period of one year to determine immune conversion after M. tuberculosis exposure and potential infection. At baseline and month 3, BCG-vaccinated contacts had significantly lower IFN-γ levels after stimulation with M. tuberculosis-specific proteins as compared to non-BCG-vaccinated contacts. This resulted in decreased proportions of positive IGRA results (BCG-vaccinated: 60% at baseline, 57% at month 3; non-BCG-vaccinated: 77% and 88%, respectively) at month 3. However, until month 12, immune conversion in BCG-vaccinated contacts led to balanced proportions in IGRA responders and IFN-γ expression between the study groups. TAM-TB assay analyses confirmed higher proportions of IFN-γ-positive T-cells in non-BCG-vaccinated contacts. Low proportions of CD38-positive M. tuberculosis-specific T-cells were only detected in non-BCG-vaccinated contacts at baseline. These results suggest that BCG vaccination causes delayed immune conversion as well as differences in the phenotype of M. tuberculosis-specific T-cells in BCG-vaccinated contacts of tuberculosis patients. These differences are immune biomarker candidates for protection against the development of severe clinical tuberculosis manifestations.
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Affiliation(s)
- Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
- Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi 00233, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Isaac Acheampong
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Difery Minadzi
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Joseph F Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Millicent Lamptey
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Monika M Vivekanandan
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | | | | | | | - Amidu Gawusu
- Sene West Health Directorate, Kwame Danso, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Alexander Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi 00233, Ghana
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi 00233, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany
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8
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Aniagyei W, Adjei JK, Adankwah E, Seyfarth J, Mayatepek E, Antwi Berko D, Sakyi SA, Batsa Debrah L, Debrah AY, Hoerauf A, Owusu DO, Phillips RO, Jacobsen M. Doxycycline Treatment of Mansonella perstans-Infected Individuals Affects Immune Cell Activation and Causes Long-term T-cell Polarization. Clin Infect Dis 2023; 76:e1399-e1407. [PMID: 35657028 DOI: 10.1093/cid/ciac428] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/18/2022] [Accepted: 05/24/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Doxycycline is used for treatment of Mansonella perstans infection. Immune modulatory effects of both M. perstans and doxycycline have been described but long-term implications on host immune response are not defined. Here we determined multiple immune parameters of M. perstans-infected individuals before and after doxycycline treatment to characterize doxycycline effects on host T-cell immunity. METHODS Immune characterization of doxycycline-treated M. perstans-infected individuals was performed as part of an open-label randomized clinical trial. Immune cell population phenotyping by flow cytometry and functional in vitro T-cell assays were performed at baseline, 6 months, and "long term" (18-24 months) after treatment start. Treatment efficacy, based on peripheral blood microfilaria (mf) burden, was correlated with immune parameters and effects on immune response against concomitant Mycobacterium tuberculosis infection were determined. RESULTS Immune population phenotyping indicated changes in functional T-cell responses after doxycycline treatment. Constitutive and superantigen-induced T-cell activation and polarization towards T-helper type (TH) 1 phenotype at baseline declined after doxycycline treatment, whereas low proportions of TH17 and TH1* cells at baseline increased significantly at follow-up. In accordance, long-term decline in antigen-specific TH1 responses against concomitant M. tuberculosis infection was seen. Notably, only TH17 and TH1* changes after 6 months and TH17 at baseline were negatively correlated with M. perstans microfilaria burden or reduction, whereas long-term changes were not associated with treatment efficacy. CONCLUSIONS We found long-term immune modulatory effects of doxycycline treatment leading to decreased constitutive T-cell activation, polarization towards TH17/TH1*, and impaired immune response against concomitant M. tuberculosis infection.
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Affiliation(s)
- Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Jonathan Kofi Adjei
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana.,Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Daniel Antwi Berko
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Samuel Asamoah Sakyi
- Department of Molecular Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Alexander Yaw Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana.,Faculty of Allied Health Sciences of Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Achim Hoerauf
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn-Cologne, Germany
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana.,Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
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9
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Vivekanandan MM, Adankwah E, Aniagyei W, Acheampong I, Yeboah A, Arthur JF, Lamptey MNK, Abass MK, Gawusu A, Kumbel F, Osei-Yeboah F, Debrah LB, Owusu DO, Debrah A, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. Plasma cytokine levels characterize disease pathogenesis and treatment response in tuberculosis patients. Infection 2023; 51:169-179. [PMID: 35759173 PMCID: PMC9879809 DOI: 10.1007/s15010-022-01870-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/02/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Mycobacterium (M.) tuberculosis-caused immunopathology is characterized by aberrant expression of plasma cytokines in human tuberculosis. Disease severity and long-term anti-mycobacterial treatment are potentially influenced by immunopathology and normalization of plasma cytokine levels during therapy may indicate treatment efficacy and recovery. STUDY DESIGN AND METHODS In this study, we analyzed the concentrations of selected plasma cytokines (i.e., IL-6, IP-10, IL-10, IL-22, IFNγ, GM-CSF, IL-8) and M. tuberculosis sputum burden in patients with tuberculosis (n = 76). Cytokine levels were compared to healthy contacts (n = 40) and changes under treatment were monitored (i.e., 6 and 16 weeks after treatment start). According to differences in M. tuberculosis sputum burden and conversion, tuberculosis patients were classified as paucibacillary as well as 'rapid' or 'slow' treatment responders. A subgroup of tuberculosis patients had fatal disease courses. RESULTS Six of seven cytokines were significantly higher in tuberculosis patients as compared to contacts and four of these (i.e., IL-6, IP-10, IL-10, and IL-22) were detectable in the majority of tuberculosis patients. IL-6 showed the strongest discriminating capacity for tuberculosis disease and in combination with IL-10 concentrations efficiently classified paucibacillary tuberculosis cases as well as those with fatal disease outcome. In addition, IL-6 and IP-10 levels decreased significantly after 6 weeks of treatment and analyses of subgroups with differential treatment response showed delayed decline of IL-6 levels in slow treatment responders. CONCLUSIONS Combinations of different plasma cytokine (namely, IL-6, IL-10, and IP-10) efficiently classified tuberculosis patients with differential mycobacterial burden and especially IL-6 qualified as a biomarker candidate for early treatment response.
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Affiliation(s)
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Isaac Acheampong
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Joseph F Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | | | - Amidu Gawusu
- Sene West Health Directorate, Kwame Danso, Ghana
| | | | | | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Alexander Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225, Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225, Duesseldorf, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana.,School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225, Duesseldorf, Germany.
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10
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Vivekanandan MM, Adankwah E, Aniagyei W, Acheampong I, Minadzi D, Yeboah A, Arthur JF, Lamptey M, Abass MK, Kumbel F, Osei-Yeboah F, Gawusu A, Debrah LB, Owusu DO, Debrah A, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. Impaired T-cell response to phytohemagglutinin (PHA) in tuberculosis patients is associated with high IL-6 plasma levels and normalizes early during anti-mycobacterial treatment. Infection 2023:10.1007/s15010-023-01977-1. [PMID: 36650358 DOI: 10.1007/s15010-023-01977-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023]
Abstract
PURPOSE Human tuberculosis is characterized by immunopathology that affects T-cell phenotype and functions. Previous studies found impaired T-cell response to phytohemagglutinin (PHA) in patients with acute tuberculosis. However, the influence of disease severity, affected T-cell subsets, and underlying mechanisms remain elusive. METHODS Here we investigated PHA-induced and antigen-specific T-cell effector cytokines in tuberculosis patients (n = 55) as well as in healthy asymptomatic contacts (n = 32) from Ghana. Effects of Mycobacterium (M.) tuberculosis sputum burden and treatment response were analyzed and compared during follow-up. Finally, cytokine characteristics of the aberrant plasma milieu in tuberculosis were analyzed as a potential cause for impaired PHA response. RESULTS PHA-induced IFN-γ expression was significantly lower in sputum-positive tuberculosis patients as compared to both, contacts and paucibacillary cases, and efficiently discriminated the study groups. T-cell responses to PHA increased significantly early during treatment and this was more pronounced in tuberculosis patients with rapid treatment response. Analysis of alternative cytokines revealed distinct patterns and IL-22, as well as IL-10, showed comparable expression to IFN-γ in response to PHA. Finally, we found that high IL-6 plasma levels were strongly associated with impaired IFN-γ and IL-22 response to PHA. CONCLUSION We conclude that impaired T-cell response to PHA stimulation in acute tuberculosis patients (i) was potentially caused by the aberrant plasma milieu, (ii) affected differentially polarized T-cell subsets, (iii) normalized early during treatment. This study shed light on the mechanisms of impaired T-cell functions in tuberculosis and yielded promising biomarker candidates for diagnosis and monitoring of treatment response.
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Affiliation(s)
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Isaac Acheampong
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Difery Minadzi
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Joseph F Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Millicent Lamptey
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | | | | | - Amidu Gawusu
- Sene West Health Directorate, Kwame Danso, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Alexander Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, University Children's Hospital, Heinrich-Heine University, Moorenstr. 5, 40225, Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, University Children's Hospital, Heinrich-Heine University, Moorenstr. 5, 40225, Duesseldorf, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- School of Medicine and Dentistry, College of Health Sciences, KNUST, Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, University Children's Hospital, Heinrich-Heine University, Moorenstr. 5, 40225, Duesseldorf, Germany.
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11
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Jacobsen M, Adjei JK, Aniagyei W, Adankwah E, Seyfarth J, Mayatepek E, Antwi-Berko D, Sakyi SA, Debrah AY, Debrah LB, Owusu DO, Phillips RO. T-Cell Responses Against Mycobacterium ulcerans and Mycobacterium tuberculosis Protein Extracts Identify Children With Buruli Ulcer Disease. J Pediatric Infect Dis Soc 2022; 11:575-577. [PMID: 36070406 DOI: 10.1093/jpids/piac092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 09/06/2022] [Indexed: 12/30/2022]
Abstract
Immune-based diagnosis of Buruli ulcer disease (BUD) in children is difficult due to cross-reactivity between mycobacteria. We found that T-cell IFNγ/TNFα responses against Mycobacterium (M.) ulcerans and M. tuberculosis (PPDMulc, PPDMtub) were different between children with BUD (n = 27) and TB (n = 20) but only ratios (PPDMtub/PPDMulc) discriminated the study groups efficiently.
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Affiliation(s)
- Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Jonathan Kofi Adjei
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana.,Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Daniel Antwi-Berko
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Samuel Asamoah Sakyi
- Department of Molecular Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Alexander Y Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana.,Department of Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
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12
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Harelimana JDD, Ahor HS, Benner B, Hellmuth S, Adankwah E, Minadzi D, Aniagyei W, Lamptey M, Arthur J, Yeboah A, Abass MK, Debrah LB, Owusu DO, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. Cytokine-induced transient monocyte IL-7Ra expression and the serum milieu in tuberculosis. Eur J Immunol 2022; 52:958-969. [PMID: 35279828 DOI: 10.1002/eji.202149661] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 11/09/2022]
Abstract
Bacterial components and cytokines induce Interleukin-7 receptor (IL-7Rα) expression in monocytes. Aberrant low IL-7Rα expression of monocytes has been identified as a feature of tuberculosis immunopathology. Here, we investigated the mechanisms underlying IL-7Rα regulation of monocytes and tuberculosis serum effects IL-7Rα expression. Serum samples from tuberculosis patients and healthy controls, cytokine candidates, and mycobacterial components were analyzed for in vitro effects on IL-7Rα expression of primary monocytes, monocyte-derived macrophages (MDM), and monocyte cell lines. IL-7Rα regulation during culture and the role of FoxO1 was characterized. In vitro activation induced IL-7Rα expression in human monocytes and serum samples from tuberculosis patients boosted IL-7Rα expression. Although pathognomonic tuberculosis cytokines were not associated with serum effects, we identified cytokines (i.e., GM-CSF, IL-1β, TNFα, IFNγ) that induced IL-7Rα expression in monocytes and/or MDM comparable to mycobacterial components. Blocking of cytokine subsets (i.e., IL-1β/TNFα in monocytes, GM-CSF in MDM) largely diminished IL-7Rα expression induced by mycobacterial components. Finally, we showed that in vitro induced IL-7Rα expression was transient and dependent on constitutive FoxO1 expression in primary monocytes and monocyte cell lines. This study demonstrated the crucial roles of cytokines and constitutive FoxO1 expression for transient IL-7Rα expression in monocytes. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jean De Dieu Harelimana
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, 40225, Germany
| | - Hubert Senanu Ahor
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, 40225, Germany
| | - Bastian Benner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, 40225, Germany
| | - Sabine Hellmuth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, 40225, Germany
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Difery Minadzi
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Millicent Lamptey
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Joseph Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, 40225, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, 40225, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana.,School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, Duesseldorf, 40225, Germany
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13
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Enczmann J, Balz V, Hoffmann M, Kummer S, Reinauer C, Döing C, Förtsch K, Welters A, Mayatepek E, Meissner T, Jacobsen M, Seyfarth J. Next Generation Sequencing Identifies the HLA-DQA1*03:03 Allele in the Type 1 Diabetes Risk-Associated HLA-DQ8 Serotype. Genes (Basel) 2021; 12:genes12121879. [PMID: 34946827 PMCID: PMC8701008 DOI: 10.3390/genes12121879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/18/2021] [Accepted: 11/24/2021] [Indexed: 11/24/2022] Open
Abstract
The highest genetic type 1 diabetes risk is conferred by HLA class II haplotypes defined by alleles at the HLA-DR and -DQ loci. The combination of HLA-DQA1*03:01 and DQB1*03:02 alleles (summarized as ‘HLA-DQ8′) is reported to be among the two most prevalent HLA class II haplotypes in Caucasian type 1 diabetes patients. This classification is based on conventional genotyping of exon 2 of the DQ gene locus and excludes exon 3. In this study, HLA genotyping on the type 1 diabetes susceptibility loci HLA-DRB1, DQA1 and DQB1 was performed using a high-resolution next generation sequencing method. In addition to the routinely examined exon 2, exon 3 was also sequenced. Samples from 229 children with type 1 diabetes were included and compared to a cohort of 9,786 controls. In addition to previously described HLA-DQ haplotypes in type 1 diabetes patients, we found that as well as HLA-DQA1*03:01,HLA-DQA1*03:03 also contributed to HLA-DQ8. HLA-DQA1*03:03 differs from HLA-DQA1*03:01 by one nucleotide substitution in exon 3 at position 160, leading to a single amino acid replacement. DRB1*04:05 was exclusively associated with DQA1*03:03 whereas the DRB1*04:01 haplotype comprised either DQA1*03:01 or DQA1*03:03. Significantly increased type 1 diabetes risk was confirmed for all these haplotypes with only minor differences between DQA1*03:01 and DQA1*03:03 alleles. This study identified the HLA-DQA1*03:03 allele as an addition to the already known type 1 diabetes risk haplotypes, and can contribute to more precise HLA genotyping approaches.
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Affiliation(s)
- Jürgen Enczmann
- Institute for Transplantation Diagnostics and Cell Therapeutics, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (J.E.); (V.B.)
| | - Vera Balz
- Institute for Transplantation Diagnostics and Cell Therapeutics, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (J.E.); (V.B.)
| | - Maximilian Hoffmann
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Sebastian Kummer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Christina Reinauer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Carsten Döing
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Katharina Förtsch
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Alena Welters
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany; (M.H.); (S.K.); (C.R.); (C.D.); (K.F.); (A.W.); (E.M.); (T.M.); (M.J.)
- Correspondence:
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14
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Hehenkamp P, Hoffmann M, Kummer S, Reinauer C, Döing C, Förtsch K, Enczmann J, Balz V, Mayatepek E, Meissner T, Jacobsen M, Seyfarth J. Interleukin-7-dependent nonclassical monocytes and CD40 expression are affected in children with type 1 diabetes. Eur J Immunol 2021; 51:3214-3227. [PMID: 34625948 DOI: 10.1002/eji.202149229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 08/13/2021] [Accepted: 10/04/2021] [Indexed: 12/18/2022]
Abstract
The important role of IL-7 in the generation of self-reactive T-cells in autoimmune diseases is well established. Recent studies on autoimmunity-associated genetic polymorphisms indicated that differential IL-7 receptor (IL-7R) expression of monocytes may play a role in the underlying pathogenesis. The relevance of IL-7-mediated monocyte functions in type 1 diabetes remains elusive. In the present study, we characterized monocyte phenotype and IL-7-mediated effects in children with type 1 diabetes and healthy controls with multicolor flow cytometry and t-distributed Stochastic Neighbor-Embedded (t-SNE)-analyses. IL-7R expression of monocytes rapidly increased in vitro and was boosted through LPS. In the presence of IL-7, we detected lower monocyte IL-7R expression in type 1 diabetes patients as compared to healthy controls. This difference was most evident for the subset of nonclassical monocytes, which increased after IL-7 stimulation. t-SNE analyses revealed IL-7-dependent differences in monocyte subset distribution and expression of activation and maturation markers (i.e., HLA-DR, CD80, CD86, CD40). Notably, monocyte CD40 expression increased considerably by IL-7 and CD40/IL-7R co-expression differed between patients and controls. This study shows the unique effects of IL-7 on monocyte phenotype and functions. Lower IL-7R expression on IL-7-induced CD40high monocytes and impaired IL-7 response characterize monocytes from patients with type 1 diabetes.
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Affiliation(s)
- Paul Hehenkamp
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Maximilian Hoffmann
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Sebastian Kummer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Christina Reinauer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Carsten Döing
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Katharina Förtsch
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Jürgen Enczmann
- Institute for Transplantation Diagnostics and Cell Therapeutics, Medical Faculty, University Hospital, Duesseldorf, Germany
| | - Vera Balz
- Institute for Transplantation Diagnostics and Cell Therapeutics, Medical Faculty, University Hospital, Duesseldorf, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
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Wadenpohl J, Seyfarth J, Hehenkamp P, Hoffmann M, Kummer S, Reinauer C, Döing C, Förtsch K, Mayatepek E, Meissner T, Jacobsen M. CD5-expressing CD8 + T-cell subsets differ between children with type 1 diabetes and controls. Immunol Cell Biol 2021; 99:1077-1084. [PMID: 34133790 DOI: 10.1111/imcb.12488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 01/14/2023]
Abstract
Different lymphocyte subsets are involved in autoimmune pathogenesis of type 1 diabetes (T1D). Previous studies suggested a role of CD5-expressing T and B cells including rare unconventional lymphocytes with combined T- and B-cell features [dual expressing (DE) cells]. We performed algorithm-supported multiparameter flow cytometry and quantitative PCR to investigate immune cell subsets and DE cells in children with T1D (n = 20) and matched controls (n = 20). Comparisons of conventional immune cells detected increased proportions of CD3+ T cells in T1D patients, whereas CD19+ B-cell proportions were comparable to controls. Self-organizing maps for flow cytometry analyses (FlowSOM) showed highly similar CD5-expressing B-cell subsets and no differences for DE cells were detected between the study groups by flow cytometry or specific quantitative PCR. Notably, differences in CD8+ T cells were indicated by FlowSOM and similarity-based t-distributed stochastic neighbor embedding (tSNE) analyses. Study group comparisons confirmed significantly reduced CD8+ T-cell proportions with moderate or low CD5 expression in T1D patients. Finally, in vitro experiments showed stable CD5 expression differences of CD8+ T cells after T-cell activation, cytokine stimulation and culture. We observed differences of T-cell coreceptor CD5 expression in T1D patients with potential relevance for immune regulation of CD8+ T-cell activation.
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Affiliation(s)
- Josefine Wadenpohl
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Paul Hehenkamp
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Maximilian Hoffmann
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Sebastian Kummer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Christina Reinauer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Carsten Döing
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Katharina Förtsch
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Duesseldorf, Germany
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16
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Adankwah E, Seyfarth J, Phillips R, Jacobsen M. Aberrant cytokine milieu and signaling affect immune cell phenotypes and functions in tuberculosis pathology: What can we learn from this phenomenon for application to inflammatory syndromes? Cell Mol Immunol 2021; 18:2062-2064. [PMID: 34035497 PMCID: PMC8144869 DOI: 10.1038/s41423-021-00695-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Ernest Adankwah
- Department of General Pediatrics, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany.,Department of Medical Diagnostics, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Julia Seyfarth
- Department of General Pediatrics, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Richard Phillips
- Department of Medicine, School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana.,Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany.
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17
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Seyfarth J, Herebian D, Reinauer C, Baechle C, Roden M, Holl RW, Reinehr T, Mayatepek E, Meissner T, Rosenbauer J. Evaluation of lipoprotein-associated phospholipase A2 as a marker for renal microvasculopathy in adolescents with Type 1 diabetes. Diabet Med 2020; 37:75-83. [PMID: 31335994 DOI: 10.1111/dme.14086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/22/2019] [Indexed: 11/26/2022]
Abstract
AIM To assess the relevance of lipoprotein-associated phospholipase A2 activity as a diagnostic and prognostic marker for renal microvascular diseases. METHODS We analysed lipoprotein-associated phospholipase A2 activity and lysophosphatidylcholine levels (as a surrogate marker of oxidative stress) in 165 adolescents (aged 17.0 ± 2.3 years) with a history of Type 1 diabetes greater than 10 years. Clinical data were obtained from the German/Austrian nationwide Diabetes-Patients Follow-up (DPV) registry at blood collection and on average 2.4 ± 1.3 years later at follow-up. Relationships between lipoprotein-associated phospholipase A2 activity and clinical, demographic and laboratory variables, lysophosphatidylcholine levels and presence of albuminuria were evaluated by multivariable linear and logistic regression. RESULTS Lipoprotein-associated phospholipase A2 activity was higher in male than female adolescents (P = 0.002). Albuminuria was present in 14% (22/158) of participants at baseline, and 5% (4/86) of participants without albuminuria at baseline developed albuminuria until follow-up. Lipoprotein-associated phospholipase A2 activity was associated neither with present nor with incident albuminuria. Lysophosphatidylcholine did not correlate with lipoprotein-associated phospholipase A2 activity. Cross-sectional bivariate correlation as well as multivariable linear regression analysis revealed a negative correlation of lipoprotein-associated phospholipase A2 activity with HbA1c and HDL-cholesterol. CONCLUSIONS Lipoprotein-associated phospholipase activity was not associated with surrogate markers for oxidative stress and early diabetic nephropathy. The association of decreased lipoprotein-associated phospholipase A2 activity with poor glucose control might limit its function as a predictor of micro- and macrovascular diseases in Type 1 diabetes.
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Affiliation(s)
- J Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - D Herebian
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - C Reinauer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - C Baechle
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - M Roden
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Duesseldorf, Duesseldorf, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center at Heinrich Heine University Duesseldorf, Duesseldorf, Germany
| | - R W Holl
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
| | - T Reinehr
- Department of Pediatric Endocrinology, Diabetes and Nutrition Medicine, Vestische Hospital for Children and Adolescents Datteln, University of Witten/Herdecke, Datteln, Germany
| | - E Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - T Meissner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - J Rosenbauer
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
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Seyfarth J, Sarfo-Kantanka O, Rosenbauer J, Phillips RO, Jacobsen M. Type-1 diabetes onset age and sex differences between Ghanaian and German urban populations. J Diabetes 2019; 11:1002-1004. [PMID: 31420945 DOI: 10.1111/1753-0407.12978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/25/2019] [Accepted: 08/14/2019] [Indexed: 11/28/2022] Open
Abstract
Highlights Type 1 diabetes onset age in Kumasi/Ghana has a peak at around 17 to 20 years, whereas the peak is at 11 to 12 years in North Rhine-Westphalia, Germany. Higher proportions of females were found in the type 1 diabetes cohort from Ghana, and males were more frequent in the German cohort.
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Affiliation(s)
- Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | | | - Joachim Rosenbauer
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Düsseldorf, Germany
| | - Richard O Phillips
- Komfo Anokye Teaching Hospital (KATH), Kumasi, Ghana
- School of Medical Sciences and Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
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19
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Seyfarth J, Mütze N, Antony Cruz J, Kummer S, Reinauer C, Mayatepek E, Meissner T, Jacobsen M. CD4 + T-Cells With High Common γ Chain Expression and Disturbed Cytokine Production Are Enriched in Children With Type-1 Diabetes. Front Immunol 2019; 10:820. [PMID: 31110501 PMCID: PMC6499215 DOI: 10.3389/fimmu.2019.00820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 03/28/2019] [Indexed: 12/22/2022] Open
Abstract
The common gamma chain (γc) contributes to the formation of different cytokine receptors [e.g., IL-2 receptor (IL-2R), IL-7R, and IL-15R], which are important for generation of self-reactive T-cells in autoimmune diseases, like in type 1 diabetes (T1D). Whereas, the roles of membrane and soluble IL-2Rα and IL-7Rα variants in T1D disease pathogenesis are well-described, effects of γc expression and availability for dependent receptors remain elusive. We investigated expression of the γc and dependent receptors on T-cells and soluble γc concentrations in serum from patients with T1D (n = 34) and healthy controls (n = 27). Effector T-cell cytokines as well as IL-2, IL-7, and IL-15 induced STAT5 phosphorylation were analyzed to determine functional implications of differential γc expression of CD4+ T-cell subsets classified by t-distributed Stochastic Neighbor Embedding (t-SNE) analyses. We found increased γc and IL-7Rα expression of CD4+ T-cells from T1D patients as compared to controls. t-SNE analyses assigned differential expression to subsets of memory T-cells co-expressing γc and IL-7Rα. Whereas, γc expression was positively correlated with IL-2Rα in memory T-cells from healthy controls, no dependency was found for patients with T1D. Similarly, the effector T-cell cytokine, IL-21, correlated inversely with γc expression in healthy controls, but not in T1D patients. Finally, T1D patients with high γc expression had increased proportions of IL-2 sensitive pSTAT5+ effector T-cells. These results indicated aberrantly high γc expression of T-cells from T1D patients with implications on dependent cytokine receptor signaling and effector T-cell cytokine production.
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Affiliation(s)
- Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany
| | - Nathalie Mütze
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany
| | - Jennifer Antony Cruz
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany
| | - Sebastian Kummer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany
| | - Christina Reinauer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany.,German Center for Diabetes Research (DZD), Partner Düsseldorf, Düsseldorf, Germany
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Düsseldorf, Germany
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20
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Lundtoft C, Seyfarth J, Oberstrass S, Rosenbauer J, Baechle C, Roden M, Holl RW, Mayatepek E, Kummer S, Meissner T, Jacobsen M. Autoimmunity risk- and protection-associated IL7RA genetic variants differentially affect soluble and membrane IL-7Rα expression. J Autoimmun 2019; 97:40-47. [DOI: 10.1016/j.jaut.2018.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 01/01/2023]
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21
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Seyfarth J, Sivagurunathan S, Ricken S, Weinreich G, Olbrich L, Taube C, Mayatepek E, Schramm D, Jacobsen M. Higher Interleukin-7 serum concentrations in patients with cystic fibrosis correlate with impaired lung function. J Cyst Fibros 2018; 18:71-77. [PMID: 30389600 DOI: 10.1016/j.jcf.2018.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/03/2018] [Accepted: 09/11/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Patients with cystic fibrosis (CF) are highly susceptible to infection and colonization of pulmonary epithelia. Repeated and chronic infections may affect disease course and efficacy of host immune protection. Higher Interleukin (IL)-7 serum levels, indicating impaired T-cell response to IL-7, have been described for chronic viral and mycobacterial infections. METHODS Time course measures of IL-7 serum concentrations in patients with CF (n = 164; n = 78 for the second time point) and healthy controls (n = 60) were done. CF patients were characterized for disease severity parameters as well as infection status and association with IL-7 serum levels was determined. RESULTS CF patients had significantly higher IL-7 serum concentrations as compared to healthy controls (9.79 pg/ml, IQR 6.76-13.6 versus 4.55 pg/ml, IQR 2.76-9.51, p < .001). IL-7 serum levels were negatively correlated with individual CF patient's BMI (r = -0.19, p = .021) and a tendency of increased IL-7 levels in Staphylococcus aureus infected CF patients was found. Linear regression of multiple parameters revealed significant negative correlation of FEV1%pred with IL-7 serum concentrations in patients with CF (ß-coefficient: -0.04, 95% confidence interval [-0.08; -0.003], p = .034). Time course analyses after 1 year +/- 6 months showed increased IL-7 serum levels (time point 1:9.26 pg/ml, IQR 6.94-13.12 time point 2:10.86 pg/ml, IQR 9.14-14.76, p = .016) that correlated negatively with decreased FEV1%pred during CF disease course. CONCLUSIONS High IL-7 serum levels were found in CF patients and correlated with impaired lung function during CF disease course. As a candidate biomarker of T-cell dysfunction, higher IL-7 serum level may also indicate worsened immune competence of patients with CF.
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Affiliation(s)
- Julia Seyfarth
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Heinrich Heine University, 40225 Duesseldorf, Germany
| | - Sutharsan Sivagurunathan
- Department of Pulmonary Medicine, University Hospital Essen, University Duisburg-Essen, Ruhrlandklinik, 45239 Essen, Germany
| | - Sarah Ricken
- Department of Pulmonary Medicine, University Hospital Essen, University Duisburg-Essen, Ruhrlandklinik, 45239 Essen, Germany
| | - Gerhard Weinreich
- Department of Pulmonary Medicine, University Hospital Essen, University Duisburg-Essen, Ruhrlandklinik, 45239 Essen, Germany
| | - Laura Olbrich
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Heinrich Heine University, 40225 Duesseldorf, Germany
| | - Christian Taube
- Department of Pulmonary Medicine, University Hospital Essen, University Duisburg-Essen, Ruhrlandklinik, 45239 Essen, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Heinrich Heine University, 40225 Duesseldorf, Germany
| | - Dirk Schramm
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Heinrich Heine University, 40225 Duesseldorf, Germany
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Heinrich Heine University, 40225 Duesseldorf, Germany.
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22
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Reinauer C, Reinehr T, Baechle C, Karges B, Seyfarth J, Foertsch K, Schebek M, Woelfle J, Roden M, Holl RW, Rosenbauer J, Meissner T. Relationship of Serum Fetuin A with Metabolic and Clinical Parameters in German Children and Adolescents with Type 1 Diabetes. Horm Res Paediatr 2018; 89:73-81. [PMID: 29207397 DOI: 10.1159/000484896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/31/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND AIM The hepatokine fetuin A is upregulated in the metabolic syndrome and in type 2 diabetes (T2D), while its role in adolescent type 1 diabetes (T1D) is unclear. We assessed the relationship between circulating fetuin A levels and metabolic control, comorbidities, and complications in adolescent T1D patients. METHODS We studied the relationship between serum fetuin A and clinical diabetes-related data from the DPV registry (Diabetes-Pa-tienten-Verlaufsdokumentation) in 172 adolescent T1D patients with early-onset (<5 years) long-standing (>10 years) T1D. Fetuin A levels were further compared between adolescent T1D and T2D patients. RESULTS Serum fetuin A levels in T1D patients (mean 0.267 ± 0.043 g/L) did not correlate with age, diabetes duration, gender, body mass index (BMI), glycated hemoglobin, serum lipid levels, blood pressure, celiac or thyroid disease, nephropathy, or retinopathy. An association of fetuin A levels with insulin requirements was only evident within the subgroup of overweight T1D patients (rs = 0.439, p = 0.028, n = 25, BMI >90th percentile), disappearing after adjustment for multiple testing. Adolescent T1D patients showed distinctly lower fetuin A levels than patients with T2D (p ≤ 0.001). CONCLUSION Overall, we did not observe a clinically relevant association of fetuin A levels with surrogate parameters for insulin sensitivity in our juvenile T1D cohort. A correlation with insulin requirements was detectable in overweight patients only. We hypothesize that multiple factors, such as obesity, puberty, inadequate metabolic control, and hepatic steatosis, have to add up before a clinically relevant effect of fetuin A on insulin sensitivity becomes evident.
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Affiliation(s)
- Christina Reinauer
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Thomas Reinehr
- Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents Datteln, University of Witten-Herdecke, Datteln, Germany
| | - Christina Baechle
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Beate Karges
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany.,Division of Endocrinology and Diabetes, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Katharina Foertsch
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Martin Schebek
- Department of Pediatric Diabetes, Children's Hospital Kassel, Kassel, Germany
| | - Joachim Woelfle
- Department of Pediatric Endocrinology and Diabetology, University Hospital Bonn, Bonn, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany.,Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Reinhard W Holl
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany.,Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
| | - Joachim Rosenbauer
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany
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Seyfarth J, Lundtoft C, Förtsch K, Ahlert H, Rosenbauer J, Baechle C, Roden M, Holl RW, Mayatepek E, Kummer S, Meissner T, Jacobsen M. Interleukin-7 receptor α-chain haplotypes differentially affect soluble IL-7 receptor and IL-7 serum concentrations in children with type 1 diabetes. Pediatr Diabetes 2018; 19:955-962. [PMID: 29484785 DOI: 10.1111/pedi.12665] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/18/2018] [Accepted: 02/19/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Interleukin-7 receptor α-chain (IL7RA) haplotypes are associated with susceptibility for development of autoimmune diseases, including type 1 diabetes (T1D). A protective IL7RA haplotype which causes lower soluble IL-7R (sIL-7R) serum levels is hypothesized to restrict IL-7-availability for self-reactive T cells. Functional mechanisms affected by a risk-associated IL7RA haplotype are unknown. METHODS We investigated the influence of IL7RA haplotypes (tagged by rs6897932T for the protective or by rs1494555G for the risk haplotype) on sIL-7R and IL-7 serum concentrations as well as disease manifestation of children with T1D (n = 259). Possible effects of differential IL-7 serum concentrations on IL-7-mediated in vitro T cell functions (i.e. IL-7R regulation and cytokine expression) were measured in a second study group of children with T1D (n = 42). RESULTS We detected lower sIL-7R serum concentrations in children with T1D carrying protective or risk haplotypes as compared to reference haplotypes. sIL-7R levels were lowest in T1D children with the protective haplotype and lower IL-7 serum levels were exclusively detected in this study group. We found no evidence for dependency between IL-7 and sIL-7R serum concentrations and no association with T1D manifestation. Neither IL-7 nor sIL-7R serum levels were associated with mIL-7R regulation or IL-7-promoted T cell cytokine expression. CONCLUSIONS Children with T1D carrying autoimmunity risk- or protection-associated IL7RA haplotypes had both lower sIL-7R serum concentrations as compared to the reference haplotype, but only T1D children with the protective haplotype had lower IL-7 serum levels. Our results suggest additional functional mechanisms of autoimmunity-associated IL7RA variants independent from sIL-7R mediated regulation of IL-7 availability for T cells.
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Affiliation(s)
- Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany.,German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Christian Lundtoft
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - Katharina Förtsch
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - Heinz Ahlert
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - Joachim Rosenbauer
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany.,Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Christina Baechle
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany.,Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany.,Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Reinhard W Holl
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany.,Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - Sebastian Kummer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany.,German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Medical Faculty, Duesseldorf, Germany
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Seyfarth J, Ahlert H, Rosenbauer J, Baechle C, Roden M, Holl RW, Mayatepek E, Meissner T, Jacobsen M. CISH promoter polymorphism effects on T cell cytokine receptor signaling and type 1 diabetes susceptibility. Mol Cell Pediatr 2018; 5:2. [PMID: 29411179 PMCID: PMC5801137 DOI: 10.1186/s40348-018-0080-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 09/14/2017] [Accepted: 01/22/2018] [Indexed: 11/25/2022] Open
Abstract
Background Impaired regulatory T cell immunity plays a central role in the development of type 1 diabetes (T1D). Interleukin-2 receptor (IL-2R) signaling is essential for regulatory T cells (TREG), and cytokine-inducible SH2-containing protein (CIS) regulates IL-2R signaling as a feedback inhibitor. Previous studies identified association of CISH promoter region single nucleotide polymorphisms (SNPs) with susceptibility to infectious diseases. Methods Here we analyzed allele frequencies of three CISH SNPs (i.e., rs809451, rs414171, rs2239751) in a study of T1D patients (n = 260, onset age < 5 years, duration > 10 years). Minor allele frequencies were compared to a control cohort of the 1000 Genomes Project. Assigned haplotypes were determined for effects on T1D manifestation and severity. Finally, the CISH haplotype influence on cytokine signaling and function was explored in T cells from healthy donors. Results We detected similar minor allele frequencies between T1D patients and the control cohort. T1D onset age, residual serum C-peptide level, and insulin requirement were comparable between different haplotypes. Only minor differences between the haplotypes were found for in vitro cytokine (i.e., IL-2, IL-7)-induced CIS mRNA expression. STAT5 phosphorylation was induced by IL-2 or IL-7, but no differences were found between the haplotypes. TREG purified from healthy donors with the two most common haplotypes showed similar capacity to inhibit heterologous effector T cells. Conclusions This study provides no evidence for an association of CISH promoter SNPs with susceptibility to T1D or severity of disease. In contrast to previous studies, no influence of different haplotypes on CIS mRNA expression or T cell-mediated functions was found. Electronic supplementary material The online version of this article (10.1186/s40348-018-0080-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Julia Seyfarth
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Moorenstr. 5, 40225, Duesseldorf, Germany.,German Center for Diabetes Research (DZD), 85764, Munich, Neuherberg, Germany
| | - Heinz Ahlert
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Moorenstr. 5, 40225, Duesseldorf, Germany
| | - Joachim Rosenbauer
- German Center for Diabetes Research (DZD), 85764, Munich, Neuherberg, Germany.,Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, 40225, Duesseldorf, Germany
| | - Christina Baechle
- German Center for Diabetes Research (DZD), 85764, Munich, Neuherberg, Germany.,Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, 40225, Duesseldorf, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), 85764, Munich, Neuherberg, Germany.,Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany.,Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Reinhard W Holl
- German Center for Diabetes Research (DZD), 85764, Munich, Neuherberg, Germany.,ZIBMT, Institute of Epidemiology and Medical Biometry, University of Ulm, 89081, Ulm, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Moorenstr. 5, 40225, Duesseldorf, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Moorenstr. 5, 40225, Duesseldorf, Germany.,German Center for Diabetes Research (DZD), 85764, Munich, Neuherberg, Germany
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Moorenstr. 5, 40225, Duesseldorf, Germany.
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Seyfarth J, Reinehr T, Hoyer A, Reinauer C, Bächle C, Karges B, Mayatepek E, Roden M, Hofer SE, Wiegand S, Woelfle J, Kiess W, Rosenbauer J, Holl RW, Meissner T. Lipoprotein-associated phospholipase A2 activity in obese adolescents with and without type 2 diabetes. J Inherit Metab Dis 2018; 41:73-79. [PMID: 29027597 DOI: 10.1007/s10545-017-0100-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/20/2017] [Accepted: 09/26/2017] [Indexed: 01/25/2023]
Abstract
Lipoprotein-associated phospholipase A2 (Lp-PLA2) was identified as a strong predictor for cardiovascular events. Furthermore, it is highly associated with obesity. The role of Lp-PLA2 in diabetes mellitus is controversial and analyses, especially in adolescents with type 2 diabetes (T2D), are missing. Therefore, we compared Lp-PLA2 activity between two obese age-, sex-, and BMI-matched cohorts of adolescents with and without T2D. Relationships between Lp-PLA2 activity and age, BMI, hemoglobin A1c, lipids, and adipokines were evaluated. Lp-PLA2 activity was analyzed in serum of 72 obese adolescents without T2D (mean age 15.2 ± 1.6 years) and in 65 obese adolescents with T2D (mean age 15.5 ± 1.8 years). Clinical data were obtained from the Diabetes-Patienten-Verlaufsdokumentation (DPV) registry. Surprisingly, obese adolescents with T2D had lower levels of Lp-PLA2 activity than obese children without T2D (160.2 ± 45.0 versus 180.9 ± 35.6 nmol/min/ml, p = 0.003), but this decrease could only be detected in male (158.8 ± 45.3 versus 190.8 ± 31.3 nmol/min/ml, p < 0.001) and not in female adolescents (162.1 ± 45.5 versus 167.7 ± 37.1 nmol/min/ml, p = 0.60). In multiple linear regression analysis, differences in Lp-PLA2 activity between cohorts remained large and significant (ß-coefficient: -31.60, 95% confidence interval [-49.27;-13.93], p < 0.001). Furthermore, Lp-PLA2 activity was positively associated with BMI (ß-coefficient: 2.04 [0.68;3.40], p = 0.004) and negatively associated with the adipokines leptin (ß-coefficient: -0.53 [-0.89;-0.17], p = 0.004) and adiponectin (ß-coefficient: -3.06, [-5.63;-0.48], p = 0.02). Elevated mean glucose concentrations in adolescents with T2D were not associated with an increase but with a decrease of Lp-PLA2 activity. Hence, in young patients with T2D the Lp-PLA2 activity as a risk predictor for cardiovascular events needs further investigation.
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Affiliation(s)
- Julia Seyfarth
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, 40225, Düsseldorf, Germany.
- German Center for Diabetes Research (DZD), 85674, München-Neuherberg, Germany.
| | - Thomas Reinehr
- Department of Pediatric Endocrinology, Diabetes and Nutrition Medicine, Vestische Hospital for Children and Adolescents Datteln, University of Witten/Herdecke, 45711, Datteln, Germany
| | - Annika Hoyer
- German Center for Diabetes Research (DZD), 85674, München-Neuherberg, Germany
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Christina Reinauer
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, 40225, Düsseldorf, Germany
| | - Christina Bächle
- German Center for Diabetes Research (DZD), 85674, München-Neuherberg, Germany
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Beate Karges
- Division of Endocrinology and Diabetes, German Center for Diabetes Research (DZD), RWTH Aachen University, 52074, Aachen, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, 40225, Düsseldorf, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), 85674, München-Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Sabine E Hofer
- Department of Pediatrics, Medical University Innsbruck, Innsbruck, Austria
| | - Susanna Wiegand
- Department of Pediatric Endocrinology and Diabetes, Charité Children's Hospital, 13353, Berlin, Germany
| | - Joachim Woelfle
- Pediatric Endocrinology Division, Children's Hospital, University of Bonn, 53113, Bonn, Germany
| | - Wieland Kiess
- Hospital for Children and Adolescents, University of Leipzig, 04103, Leipzig, Germany
| | - Joachim Rosenbauer
- German Center for Diabetes Research (DZD), 85674, München-Neuherberg, Germany
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center at Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Reinhard W Holl
- German Center for Diabetes Research (DZD), 85674, München-Neuherberg, Germany
- Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, 89081, Ulm, Germany
| | - Thomas Meissner
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Children's Hospital, Medical Faculty, 40225, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), 85674, München-Neuherberg, Germany
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Mohr J, Seyfarth J, Lueschow A, Weber JE, Wichmann FA, Obermayer K. BOiS-Berlin Object in Scene Database: Controlled Photographic Images for Visual Search Experiments with Quantified Contextual Priors. Front Psychol 2016; 7:749. [PMID: 27242646 PMCID: PMC4876128 DOI: 10.3389/fpsyg.2016.00749] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 05/06/2016] [Indexed: 12/04/2022] Open
Affiliation(s)
- Johannes Mohr
- Neural Information Processing Group, Department of Electrical Engineering and Computer Science, Technische Universität Berlin Berlin, Germany
| | - Julia Seyfarth
- Neural Information Processing Group, Department of Electrical Engineering and Computer Science, Technische Universität Berlin Berlin, Germany
| | - Andreas Lueschow
- Cognitive Neurophysiology Group, Department of Neurology, Campus Benjamin Franklin, Charité-University Medicine Berlin Berlin, Germany
| | - Joachim E Weber
- Cognitive Neurophysiology Group, Department of Neurology, Campus Benjamin Franklin, Charité-University Medicine Berlin Berlin, Germany
| | - Felix A Wichmann
- Neural Information Processing Group, Faculty of Science, Bernstein Center for Computational Neuroscience Tübingen, University of TübingenTübingen, Germany; Empirical Inference Department, Max Planck Institute for Intelligent SystemsTübingen, Germany
| | - Klaus Obermayer
- Neural Information Processing Group, Department of Electrical Engineering and Computer Science, Technische Universität BerlinBerlin, Germany; Bernstein Center for Computational Neuroscience BerlinBerlin, Germany
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Kohns M, Seyfarth J, Schramm D, Mayatepek E, Jacobsen M. Tuberkulose. Monatsschr Kinderheilkd 2013. [DOI: 10.1007/s00112-013-2882-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tress O, Maglione M, May D, Pivneva T, Richter N, Seyfarth J, Binder S, Zlomuzica A, Seifert G, Theis M, Dere E, Kettenmann H, Willecke K. Panglial gap junctional communication is essential for maintenance of myelin in the CNS. J Neurosci 2012; 32:7499-518. [PMID: 22649229 PMCID: PMC6703577 DOI: 10.1523/jneurosci.0392-12.2012] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 03/08/2012] [Accepted: 04/03/2012] [Indexed: 12/15/2022] Open
Abstract
In this study, we have investigated the contribution of oligodendrocytic connexin47 (Cx47) and astrocytic Cx30 to panglial gap junctional networks as well as myelin maintenance and function by deletion of both connexin coding DNAs in mice. Biocytin injections revealed complete disruption of oligodendrocyte-to-astrocyte coupling in the white matter of 10- to 15-d-old Cx30/Cx47 double-deficient mice, while oligodendrocyte-to-oligodendrocyte coupling was maintained. There were no quantitative differences regarding cellular networks in acute brain slices obtained from Cx30/Cx47 double-null mice and control littermates, probably caused by the upregulation of oligodendrocytic Cx32 in Cx30/Cx47 double-deficient mice. We observed early onset myelin pathology, and ∼40% of Cx30/Cx47 double-deficient animals died within 42 to 90 d after birth, accompanied by severe motor impairments. Histological and ultrastructural analyses revealed severe vacuolization and myelination defects in all white matter tracts of the CNS. Furthermore, Cx30/Cx47 double-deficient mice exhibited a decreased number of oligodendrocytes, severe astrogliosis, and microglial activation in white matter tracts. Although less affected concerning motor impairment, surviving double-knock-out (KO) mice showed behavioral alterations in the open field and in the rotarod task. Vacuole formation and thinner myelin sheaths were evident also with adult surviving double-KO mice. Since interastrocytic coupling due to Cx43 expression and interoligodendrocytic coupling because of Cx32 expression are still maintained, Cx30/Cx47 double-deficient mice demonstrate the functional role of both connexins for interastrocytic, interoligodendrocytic, and panglial coupling, and show that both connexins are required for maintenance of myelin.
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MESH Headings
- 2',3'-Cyclic-Nucleotide Phosphodiesterases/metabolism
- Actins/metabolism
- Age Factors
- Animals
- Animals, Newborn
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Biophysics
- Central Nervous System/cytology
- Central Nervous System/growth & development
- Connexin 30
- Connexins/deficiency
- Connexins/metabolism
- Electric Stimulation
- Exploratory Behavior/physiology
- Gap Junctions/physiology
- Gap Junctions/ultrastructure
- Gene Expression Regulation, Developmental/genetics
- Glial Fibrillary Acidic Protein/metabolism
- Green Fluorescent Proteins/genetics
- Green Fluorescent Proteins/metabolism
- Habituation, Psychophysiologic/genetics
- In Vitro Techniques
- Kaplan-Meier Estimate
- Maze Learning/physiology
- Mice
- Mice, Knockout
- Microscopy, Electron, Transmission
- Motor Activity/genetics
- Myelin Sheath/physiology
- Nerve Tissue Proteins/metabolism
- Neuroglia/cytology
- Neuroglia/physiology
- Neuroglia/ultrastructure
- Oligodendrocyte Transcription Factor 2
- Oligodendroglia/cytology
- Oligodendroglia/physiology
- Oligodendroglia/ultrastructure
- Patch-Clamp Techniques
- Psychomotor Performance/physiology
- RNA, Messenger/metabolism
- Recognition, Psychology/physiology
- Silver Staining
- Statistics, Nonparametric
- Gap Junction beta-1 Protein
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Affiliation(s)
- Oliver Tress
- Institute of Genetics, Division of Molecular Genetics, University of Bonn, 53117 Bonn, Germany
| | - Marta Maglione
- Cellular Neurosciences, Max-Delbrück Center for Molecular Medicine, 13092 Berlin, Germany
| | - Dennis May
- Institute of Genetics, Division of Molecular Genetics, University of Bonn, 53117 Bonn, Germany
| | - Tatjyana Pivneva
- State Key Laboratory of Molecular and Cellular Biology, Bogomoletz Institute of Physiology, 01024, Kiev, Ukraine
| | - Nadine Richter
- Cellular Neurosciences, Max-Delbrück Center for Molecular Medicine, 13092 Berlin, Germany
| | - Julia Seyfarth
- Cellular Neurosciences, Max-Delbrück Center for Molecular Medicine, 13092 Berlin, Germany
| | - Sonja Binder
- Institute of Experimental Psychology, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Armin Zlomuzica
- Institute of Experimental Psychology, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Gerald Seifert
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, 53105 Bonn, Germany
| | - Martin Theis
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, 53105 Bonn, Germany
| | - Ekrem Dere
- Institute of Experimental Psychology, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Helmut Kettenmann
- Cellular Neurosciences, Max-Delbrück Center for Molecular Medicine, 13092 Berlin, Germany
| | - Klaus Willecke
- Institute of Genetics, Division of Molecular Genetics, University of Bonn, 53117 Bonn, Germany
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Seyfarth M, Reincke M, Seyfarth J, Ring J, Fischer MR. Grades on the second medical licensing examination in Germany before and after the Licensing Reform of 2002: a study in two medical schools in Bavaria. Dtsch Arztebl Int 2010; 107:500-4. [PMID: 20703334 DOI: 10.3238/arztebl.2010.0500] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Accepted: 12/03/2009] [Indexed: 11/27/2022]
Abstract
BACKGROUND When the German national medical licensing regulations were changed in 2002, the second part of the medical licensing examination was supplemented with a practical component and expanded from one day to two. The aim of this study was to assess the written and oral-practical examination grades before and after the licensing reform. METHODS We compared the results that were obtained on the oral and written components of the second part of the national medical licensing examination under the old and new regulations (M2o and M2n, respectively) by a total of 2056 students at the Technical University (TUM) and Ludwig-Maximilian University (LMU) medical schools, both in Munich, from the spring of 2004 to the spring of 2008. We assessed the grades themselves as well as the correlation between the grades on the oral and written components before and after the reform. RESULTS Grades on the written component of the examination did not differ to any statistically significant extent before and after the reform (TUM: M2o 2.91+/-0.92, M2n 2.91+/-0.87. LMU: M2o 2.94+/-0.85, M2n 2.78+/-0.873). There was, however, a significant change in the oral examination grades (TUM: M2o 1.89+/-0.81, M2n 2.22+/-0.96; p<0.001. LMU: M2o 1.94+/-0.86, M2n 2.09+/-0.93, p<0.001). CONCLUSION Additional analysis of the grades obtained before and after the reform reveals a significantly increased concordance between grades on the oral and written components of the examination.
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Nebel K, Wiese H, Seyfarth J, Gizewski ER, Stude P, Diener HC, Limmroth V. Activity of attention related structures in multiple sclerosis patients. Brain Res 2007; 1151:150-60. [PMID: 17397807 DOI: 10.1016/j.brainres.2007.03.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [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: 10/30/2006] [Revised: 02/22/2007] [Accepted: 03/02/2007] [Indexed: 11/27/2022]
Abstract
AIMS It was investigated whether the cortical activity during tasks requiring focused or divided attention is reduced in multiple sclerosis patients with prominent deficits (MS(+D)) and increased in patients without impairment (MS(-D)) in these specific attention functions. METHODS Six MS(+D) patients with attention deficits, six unimpaired MS(-D) patients, and age-, gender-, and education-matched healthy control subjects were examined with functional magnetic resonance imaging (fMRI). The experimental paradigm consisted of visual tasks requiring focused or divided attention. RESULTS Performance accuracy and reaction times were impaired in MS(+D) patients. This subgroup showed reduced activation within superior and inferior frontal gyrus during focused attention. Under conditions of divided attention decreased activity was found within middle and inferior frontal gyrus, inferior parietal structures, and occipital areas. No compensatory activity was observed. MS(-D) patients did neither differ in behavioral data nor in cortical activity in attention related structures from control subjects. CONCLUSIONS The study found evidence for the neural correlate of attentional deficits in MS patients. In patients with specific attention deficits, reduced cortical activity in prefrontal and parietal areas, which are associated with attention and executive control, reflects the patients' reduced performance on a behavioral level. Our findings also suggest impaired top-down attentional control on sensory structures in these patients. In patients without verifiable attention deficits a normal functioning of structures relevant for executive attention was observed. Compensatory activity in these structures as a marker of reorganization in less pronounced stages of the disease was not found.
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Affiliation(s)
- Katharina Nebel
- Department of Neurology, University of Duisburg-Essen, Hufelandstr. 55, 45122 Essen, Germany.
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Abstract
Mannose-binding lectin (MBL) is a collagen-like serum protein that mediates activation of the complement system and is of importance for host defence. Common variant alleles situated both in the promoter and structural region of the human MBL gene (MBL2) influence the stability and the serum concentration of the protein. Epidemiological studies have suggested that genetically determined variation in MBL serum concentration influences the susceptibility to and the course of different types of infections, autoimmune, metabolic and cardiovascular diseases, but this is still a subject of debate. The fact that these genetic variations are very frequent indicates a dual role for MBL in host defence. In this survey, we summarize the current molecular understanding of human MBL genetics.
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Affiliation(s)
- P Garred
- Tissue Typing Laboratory-7631, Department of Clinical Immunology, Rigshospitalet, Copenhagen, Denmark.
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32
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Nebel K, Stude P, Wiese H, Seyfarth J, Gizewski E, Diener H, Limmroth V. Aktivierung von aufmerksamkeitsassoziierten Strukturen bei MS-Patienten in Abhängigkeit von Aufmerksamkeitsdefiziten: eine fMRT-Studie. Akt Neurol 2005. [DOI: 10.1055/s-2005-919388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nebel K, Wiese H, Stude P, Seyfarth J, Gizewski ER, Forsting M, Diener HC, Limmroth V. Verminderte Aktivierung aufmerksamkeitsassoziierter Strukturen bei Multipler Sklerose. Akt Neurol 2004. [DOI: 10.1055/s-2004-833099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Schmiegelow K, Nyvold C, Seyfarth J, Pieters R, Rottier MM, Knabe N, Ryder LP, Madsen HO, Svejgaard A, Kaspers GJ. Post-induction residual leukemia in childhood acute lymphoblastic leukemia quantified by PCR correlates with in vitro prednisolone resistance. Leukemia 2001; 15:1066-71. [PMID: 11455975 DOI: 10.1038/sj.leu.2402144] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [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: 11/09/2022]
Abstract
Most prognostic factors in childhood acute lymphoblastic leukemia (ALL) are informative for groups of patients, whereas new approaches are needed to predict the efficacy of chemotherapy for the individual patient. The residual leukemia following 4 weeks of induction therapy with prednisolone, vincristine, doxorubicin and i.t. methotrexate and the in vitro resistance to prednisolone, vincristine, and doxorubicin were measured in 30 boys and 12 girls with B (n = 34) or T lineage (n = 8) ALL. The residual leukemia was quantified after 2 (MRD-D15, n = 29) and 4 weeks (MRD-PI, n = 42) of induction therapy with a precise and reproducible clone-specific PCR technique. The median MRD-D15 and MRD-PI were 0.50% (75% range 0.0088.1%) and 0.014% (75% range 0.001-2.0%), respectively, and these levels correlated significantly (n = 29, rs = 0.75, P < 0.001). Both the MRD-D15 and the MRD-PI were related to the age of the patient (MRD-D15: rs= 0.48, P= 0.009; MRD-PI: rs = 0.45, P = 0.003). Patients with T lineage ALL had higher MRD-PI than those with B lineage ALL (median MRD-PI: 0.5% vs 0.01%, P = 0.05). The median LC50 (concentration lethal to 50% of cells) for prednisolone was 2.3 microg/ml (75% range 0.05-668). Both MRD-D15 and MRD-PI correlated significantly with the in vitro resistance to prednisolone (MRD-D15: rs = 0.41, P = 0.03; MRD-PI: rs = 0.39, P = 0.01); but not to in vitro vincristine or doxorubicin resistance. The correlations between MRD and in vitro prednisolone resistance were even more pronounced when B cell precursor and T cell leukemia were analyzed separately (B cell precursor ALL: MRD-PI vs prednisolone LC50: n = 33, rs = 0.47, P = 0.006; T cell ALL: MRD-PI vs prednisolone resistance: n = 8, rs = 0.84, P = 0.009). After a median follow-up of 5.0 years (75% range 3.2-6.9) eight patients have relapsed. All of the 21 patients with a MRD-PI < or =0.5% and a prednisolone LC50 < or =10 microg/ml have remained in remission whereas the 7 year event-free survival for the remaining 20 patients was 0.45 +/- 0.16 (P= 0.002) Prospective studies in childhood ALL are needed to clarify whether combined monitoring of in vitro drug resistance and residual leukemia early during chemotherapy could offer new ways to classify patients and stratify the intensity of therapy.
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Affiliation(s)
- K Schmiegelow
- Department of Pediatrics, The National University Hospital, Rigshospitalet, Copenhagen, Denmark
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Ramakers-van Woerden NL, Pieters R, Loonen AH, Hubeek I, van Drunen E, Beverloo HB, Slater RM, Harbott J, Seyfarth J, van Wering ER, Hählen K, Schmiegelow K, Janka-Schaub GE, Veerman AJ. TEL/AML1 gene fusion is related to in vitro drug sensitivity for L-asparaginase in childhood acute lymphoblastic leukemia. Blood 2000; 96:1094-9. [PMID: 10910927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
The t(12;21) translocation resulting in TEL/AML1 gene fusion is present in approximately 25% of patients with precursor B-lineage pediatric acute lymphoblastic leukemia (ALL). Studies suggest an association with a good prognosis; however, relapse can occur. We studied the relation between t(12;21), determined by fluorescence in situ hybridization or polymerase chain reaction, and in vitro drug resistance, measured by the MTT assay, in childhood B-lineage ALL at diagnosis. A total of 180 ALL samples were tested, 51 (28%) of which were positive for t(12;21). The median LC(50) values did not differ significantly between TEL/AML1-positive and -negative samples for prednisolone, dexamethasone, daunorubicin, thiopurines, epipodophyllotoxins, and 4-HOO-ifosfamide. However, the TEL/AML1-positive patients were relatively more sensitive to L-asparaginase (ASP; 5.9-fold; P =.029) and slightly but significantly more resistant to vincristine (1.5-fold; P =.011) and cytarabine (1.5-fold; P =.014). After matching for unevenly distributed patient characteristics-that is, excluding patients younger than 12 months, patients with CD10-negative immature B-lineage ALL, patients with Philadelphia chromosome, and patients who were hyperdiploid (more than 50 chromosomes) from the TEL/AML1 negative group-the only remaining difference was a relative sensitivity for ASP in the TEL/AML1-positive samples (10.8-fold; P =. 012). In conclusion, the presence of TEL/AML1 gene fusion in childhood precursor B-lineage ALL does not seem to be associated with a high in vitro drug sensitivity, except for ASP, indicating that these patients could benefit from treatment schedules with significant use of this drug.
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Affiliation(s)
- N L Ramakers-van Woerden
- Department of Pediatric Hematology/Oncology, University Hospital Vrije Universiteit, Amsterdam, The Netherlands.
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Nyvold C, Madsen HO, Ryder LP, Seyfarth J, Engel CA, Svejgaard A, Wesenberg F, Schmiegelow K. Competitive PCR for quantification of minimal residual disease in acute lymphoblastic leukaemia. J Immunol Methods 2000; 233:107-18. [PMID: 10648861 DOI: 10.1016/s0022-1759(99)00113-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A very precise and reproducible polymerase chain reaction (PCR) method was developed in order to quantify minimal residual disease (MRD) in children with acute lymphoblastic leukaemia (ALL). A clone-specific competitor was constructed by introducing a restriction site in a PCR product identical to parts of the highly specific rearranged T-cell receptor delta (TCR-delta), T-cell receptor gamma (TCR-gamma), or immunoglobulin heavy chain (IgH) genes of the malignant clone. Using primers located externally to the restriction site the competitor and the DNA from the malignant clone will be amplified under identical conditions. After restriction enzyme cleavage, the PCR products originating from the competitor and the malignant clone can be distinguished by size in a gel electrophoresis step and the amount of residual disease can be determined. The method is very sensitive with a detection limit of at least one malignant cell in 10(5) normal cells. This method may be used for treatment stratification based on the early response to antileukaemic therapy.
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Affiliation(s)
- C Nyvold
- Department of Clinical Immunology, The National University Hospital, Rigshospitalet, Tagensvej 20, DK-2200, Copenhagen, Denmark.
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Seyfarth J, Hill JW, Orelove F, McMillan J, Wehman P. Factors influencing parents' vocational aspirations for their children with mental retardation. Ment Retard 1987; 25:357-62. [PMID: 3437826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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