1
|
Sekar H, Berg L, Sampson V, Yoong W. How I maximised my training during the COVID-19 pandemic. J OBSTET GYNAECOL 2024; 44:2295030. [PMID: 38146697 DOI: 10.1080/01443615.2023.2295030] [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: 07/22/2023] [Accepted: 12/10/2023] [Indexed: 12/27/2023]
Abstract
The COVID-19 pandemic was declared in March 2020 and London maternity units were among the first in the United Kingdom to report maternal infection and vertical transmission. To manage resources, over half of all Obstetrics and Gynaecology trainees were redeployed to support front-line specialities such as Core Medicine and Accident and Emergency. The vignettes in this article illustrate how three trainees maximised their limited training opportunities in the face of exceptional disruption, lack of surgical training opportunities and workload pressures.
Collapse
Affiliation(s)
- H Sekar
- ST5 trainee, Department of Obstetrics and Gynaecology, Royal London Hospital, London, UK
| | - L Berg
- Clinical Research Fellow, Department of Obstetrics and Gynaecology, University College Hospital, London, UK
| | - V Sampson
- Consultant, Department of Obstetrics and Gynaecology, North Middlesex University Hospital, London, UK
| | - W Yoong
- Consultant, Department of Obstetrics and Gynaecology, North Middlesex University Hospital, London, UK
| |
Collapse
|
2
|
Berg L, Dave A, Ye H, Wei J, Pattanakamjonkit P, Farah M, Yoong W. Obstetric outcomes in Jehovah's Witnesses: case series over nine years in a London teaching hospital. Arch Gynecol Obstet 2024; 309:475-481. [PMID: 36735030 DOI: 10.1007/s00404-023-06940-x] [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: 11/02/2022] [Accepted: 01/17/2023] [Indexed: 02/04/2023]
Abstract
OBJECTIVES The aim of the study is to assess obstetric and fetal outcomes of Jehovah's Witnesses (JWs) mothers in an inner city teaching hospital, as well as to examine the acceptance rates of various blood fractions and blood transfusion alternatives. METHODS Case series to evaluate the maternal and fetal outcomes of JWs over a nine period between 2013 and 2021. RESULTS There were 146 pregnancies extracted from our database, of which 10 were early pregnancy losses. Data from 136 deliveries > 24 weeks' gestation were assessed, with a mean maternal age and gestational age of 30.26 (± 5.4) years and 38.7 (± 5.3) weeks, respectively. 57% had normal vaginal deliveries, 8% had instrumental births and 35% had caesarean births. Mean estimated blood loss at caesarean was 575 (± 305.6) mls, while the overall mean estimated loss was 427.8 (± 299.8) mls. Cell salvage was performed in all caesarean sections but autologous transfusion was only necessary for 26%. Consultant presence was documented in 62% of caesarean births. The mean birthweight and 5-min Apgar scores were 3.31 (± 0.05) kg and 9.1 (± 0.09), respectively. There were no maternal deaths or admissions to the adult intensive care unit and the most serious complication was a uterine rupture following a trial of scar, after which the baby required cooling for hypoxic ischaemic encephalopathy. CONCLUSIONS Pregnant JWs received obstetric care led by senior clinicians, with optimisation of haematinics, minimizing of blood loss at delivery and access to technology such as cell salvage.
Collapse
Affiliation(s)
- L Berg
- Department of Obstetrics and Gynaecology, North Middlesex University Hospital, London, UK
| | - A Dave
- Department of Obstetrics and Gynaecology, North Middlesex University Hospital, London, UK
| | - H Ye
- Department of Obstetrics and Gynaecology, North Middlesex University Hospital, London, UK
| | - J Wei
- St. George's International School of Medicine, St. George's, Grenada
| | | | - M Farah
- Department of Obstetrics and Gynaecology, North Middlesex University Hospital, London, UK
| | - W Yoong
- Department of Obstetrics and Gynaecology, North Middlesex University Hospital, London, UK.
| |
Collapse
|
3
|
Hedman ÅK, Winter E, Yoosuf N, Benita Y, Berg L, Brynedal B, Folkersen L, Klareskog L, Maciejewski M, Sirota-Madi A, Spector Y, Ziemek D, Padyukov L, Shen-Orr SS, Jelinsky SA. Peripheral blood cellular dynamics of rheumatoid arthritis treatment informs about efficacy of response to disease modifying drugs. Sci Rep 2023; 13:10058. [PMID: 37344505 DOI: 10.1038/s41598-023-36999-0] [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] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 06/14/2023] [Indexed: 06/23/2023] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by systemic inflammation and is mediated by multiple immune cell types. In this work, we aimed to determine the relevance of changes in cell proportions in peripheral blood mononuclear cells (PBMCs) during the development of disease and following treatment. Samples from healthy blood donors, newly diagnosed RA patients, and established RA patients that had an inadequate response to MTX and were about to start tumor necrosis factor inhibitors (TNFi) treatment were collected before and after 3 months of treatment. We used in parallel a computational deconvolution approach based on RNA expression and flow cytometry to determine the relative cell-type frequencies. Cell-type frequencies from deconvolution of gene expression indicate that monocytes (both classical and non-classical) and CD4+ cells (Th1 and Th2) were increased in RA patients compared to controls, while NK cells and B cells (naïve and mature) were significantly decreased in RA patients. Treatment with MTX caused a decrease in B cells (memory and plasma cell), and a decrease in CD4 Th cells (Th1 and Th17), while treatment with TNFi resulted in a significant increase in the population of B cells. Characterization of the RNA expression patterns found that most of the differentially expressed genes in RA subjects after treatment can be explained by changes in cell frequencies (98% and 74% respectively for MTX and TNFi).
Collapse
Affiliation(s)
- Åsa K Hedman
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Department of Inflammation and Immunology, Pfizer, 1 Portland Street, Cambridge, MA, 02139, USA
| | | | - Niyaz Yoosuf
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | | | - Louise Berg
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Boel Brynedal
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lasse Folkersen
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Lars Klareskog
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mateusz Maciejewski
- Department of Inflammation and Immunology, Pfizer, 1 Portland Street, Cambridge, MA, 02139, USA
| | | | | | - Daniel Ziemek
- Department of Inflammation and Immunology, Pfizer, Berlin, Germany
| | - Leonid Padyukov
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Shai S Shen-Orr
- CytoReason, Tel-Aviv, Israel
- Technion-Israel Institute of Technology, Haifa, Israel
| | - Scott A Jelinsky
- Department of Inflammation and Immunology, Pfizer, 1 Portland Street, Cambridge, MA, 02139, USA.
| |
Collapse
|
4
|
Brynedal B, Yoosuf N, Ulfarsdottir TB, Ziemek D, Maciejewski M, Folkersen L, Westerlind H, Müller M, Sahlström P, Jelinsky SA, Hensvold A, Padyukov L, Pomiano NV, Catrina A, Klareskog L, Berg L. Molecular signature of methotrexate response among rheumatoid arthritis patients. Front Med (Lausanne) 2023; 10:1146353. [PMID: 37051216 PMCID: PMC10084884 DOI: 10.3389/fmed.2023.1146353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/22/2023] [Indexed: 03/29/2023] Open
Abstract
BackgroundMethotrexate (MTX) is the first line treatment for rheumatoid arthritis (RA), but failure of satisfying treatment response occurs in a significant proportion of patients. Here we present a longitudinal multi-omics study aimed at detecting molecular and cellular processes in peripheral blood associated with a successful methotrexate treatment of rheumatoid arthritis.MethodsEighty newly diagnosed patients with RA underwent clinical assessment and donated blood before initiation of MTX, and 3 months into treatment. Flow cytometry was used to describe cell types and presence of activation markers in peripheral blood, the expression of 51 proteins was measured in serum or plasma, and RNA sequencing was performed in peripheral blood mononuclear cells (PBMC). Response to treatment after 3 months was determined using the EULAR response criteria. We assessed the changes in biological phenotypes during treatment, and whether these changes differed between responders and non-responders with regression analysis. By using measurements from baseline, we also tried to find biomarkers of future MTX response or, alternatively, to predict MTX response.ResultsAmong the MTX responders, (Good or Moderate according to EULAR treatment response classification, n = 60, 75%), we observed changes in 29 partly overlapping cell types proportions, levels of 13 proteins and expression of 38 genes during treatment. These changes were in most cases suppressions that were stronger among responders compared to non-responders. Within responders to treatment, we observed a suppression of FOXP3 gene expression, reduction of immunoglobulin gene expression and suppression of genes involved in cell proliferation. The proportion of many HLA-DR expressing T-cell populations were suppressed in all patients irrespective of clinical response, and the proportion of many IL21R+ T-cells were reduced exclusively in non-responders. Using only the baseline measurements we could not detect any biomarkers or prediction models that could predict response to MTX.ConclusionWe conclude that a deep molecular and cellular phenotyping of peripheral blood cells in RA patients treated with methotrexate can reveal previously not recognized differences between responders and non-responders during 3 months of treatment with MTX. This may contribute to the understanding of MTX mode of action and explain non-responsiveness to MTX therapy.
Collapse
Affiliation(s)
- Boel Brynedal
- Translational Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Epidemiology and Community Medicine, Region Stockholm, Stockholm, Sweden
- *Correspondence: Boel Brynedal,
| | - Niyaz Yoosuf
- Translational Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tinna Bjorg Ulfarsdottir
- Translational Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | | | | | - Helga Westerlind
- Translational Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Malin Müller
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Peter Sahlström
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Aase Hensvold
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Center for Rheumatology, Academic Specialist Center, Region Stockholm, Stockholm, Sweden
| | - Leonid Padyukov
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Leonid Padyukov,
| | - Nancy Vivar Pomiano
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anca Catrina
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lars Klareskog
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Louise Berg
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
5
|
Berg L. The Importance of Consumer Authorities for the Production and Maintenance of Trust and Social Capital in Consumer Markets. J Consum Policy (Dordr) 2022; 45:537-559. [PMID: 35812162 PMCID: PMC9252548 DOI: 10.1007/s10603-022-09523-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Trust is a valuable resource that varies between countries. This paper suggests that consumers' trust in retailers and service providers, facilitating interactions and transactions between sellers and buyers in impersonal markets, is best understood as generalized trust. The paper is based on 28 037 respondents' evaluations of consumer conditions in 30 European countries. The material reveals large country-to-country variations in the percentages of residents who trust public authorities to protect their consumer rights. Moreover, there are large differences in the percentages who trust retailers and service providers to respect their rights as consumers. A multilevel path analysis supports the paper's main hypothesis that fair and effective consumer authorities enhance generalized trust in the markets. The analyses also demonstrate that fair and effective consumer institutions contribute to more equality in the markets. It is argued that consumer markets are important arenas for the maintenance and production of trust and social capital. And that generalized trust produced in markets will probably extend to, and be valuable for, the wider society.
Collapse
Affiliation(s)
- L. Berg
- SIFO – Consumption Research Norway, Oslo Metropolitan University, Oslo, Norway
| |
Collapse
|
6
|
Yoosuf N, Maciejewski M, Ziemek D, Jelinsky SA, Folkersen L, Müller M, Sahlström P, Vivar N, Catrina A, Berg L, Klareskog L, Padyukov L, Brynedal B. Early Prediction of Clinical Response to Anti-TNF Treatment using Multi-omics and Machine Learning in Rheumatoid Arthritis. Rheumatology (Oxford) 2021; 61:1680-1689. [PMID: 34175943 PMCID: PMC8996791 DOI: 10.1093/rheumatology/keab521] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 03/08/2021] [Revised: 05/18/2021] [Accepted: 06/21/2021] [Indexed: 11/18/2022] Open
Abstract
Objectives Advances in immunotherapy by blocking TNF have remarkably improved treatment outcomes for Rheumatoid arthritis (RA) patients. Although treatment specifically targets TNF, the downstream mechanisms of immune suppression are not completely understood. The aim of this study was to detect biomarkers and expression signatures of treatment response to TNF inhibition. Methods Peripheral blood mononuclear cells (PBMCs) from 39 female patients were collected before anti-TNF treatment initiation (day 0) and after 3 months. The study cohort included patients previously treated with MTX who failed to respond adequately. Response to treatment was defined based on the EULAR criteria and classified 23 patients as responders and 16 as non-responders. We investigated differences in gene expression in PBMCs, the proportion of cell types and cell phenotypes in peripheral blood using flow cytometry and the level of proteins in plasma. Finally, we used machine learning models to predict non-response to anti-TNF treatment. Results The gene expression analysis in baseline samples revealed notably higher expression of the gene EPPK1 in future responders. We detected the suppression of genes and proteins following treatment, including suppressed expression of the T cell inhibitor gene CHI3L1 and its protein YKL-40. The gene expression results were replicated in an independent cohort. Finally, machine learning models mainly based on transcriptomic data showed high predictive utility in classifying non-response to anti-TNF treatment in RA. Conclusions Our integrative multi-omics analyses identified new biomarkers for the prediction of response, found pathways influenced by treatment and suggested new predictive models of anti-TNF treatment in RA patients.
Collapse
Affiliation(s)
- Niyaz Yoosuf
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.,Translational Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | | | | | | | - Malin Müller
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Peter Sahlström
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Nancy Vivar
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Anca Catrina
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Louise Berg
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Lars Klareskog
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Leonid Padyukov
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Boel Brynedal
- Translational Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
7
|
Sundström Y, Shang MM, Panda SK, Grönwall C, Wermeling F, Gunnarsson I, Lundberg IE, Sundström M, Jakobsson PJ, Berg L. Identifying novel B-cell targets for chronic inflammatory autoimmune disease by screening of chemical probes in a patient-derived cell assay. Transl Res 2021; 229:69-82. [PMID: 32977027 DOI: 10.1016/j.trsl.2020.09.003] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 08/28/2020] [Accepted: 09/12/2020] [Indexed: 12/17/2022]
Abstract
B-cell secretion of autoantibodies drives autoimmune diseases, including systemic lupus erythematosus and idiopathic inflammatory myositis. Few therapies are presently available for treatment of these patients, often resulting in unsatisfactory effects and helping only some of the patients. We developed a screening assay for evaluation of novel targets suspending B-cell maturation into antibody secreting cells, which could contribute to future drug development. The assay was employed for testing 43 high quality chemical probes and compounds inhibiting under-explored protein targets, using primary cells from patients with autoimmune disease. Probes inhibiting bromodomain family proteins and histone methyl transferases demonstrated abrogation of B-cell functions to a degree comparable to a positive control, the JAK inhibitor tofacitinib. Inhibition of each target rendered a specific functional cell and potential disease modifying effect, indicating specific epigenetic protein targets as potential new intervention points for future drug discovery and development efforts.
Collapse
Affiliation(s)
- Yvonne Sundström
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Ming-Mei Shang
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Sudeepta Kumar Panda
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Caroline Grönwall
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Wermeling
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Iva Gunnarsson
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Ingrid E Lundberg
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Michael Sundström
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Per-Johan Jakobsson
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Louise Berg
- Division of Rheumatology, Department of Medicine Solna, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
8
|
Hirsch M, Berg L, Gamaleldin I, Vyas S, Vashisht A. The management of women with thoracic endometriosis: a national survey of British gynaecological endoscopists. Facts Views Vis Obgyn 2021; 12:291-298. [PMID: 33575678 PMCID: PMC7863691] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
OBJECTIVES This study evaluates current national opinions on screening, diagnosis, and management of thoracic endometriosis. BACKGROUND Thoracic endometriosis is a rare but serious condition with four main clinical presentations: pneumothorax, haemoptysis, haemothorax, and pulmonary nodules. There are no specialist centres in the United Kingdom despite growing patient desire for recognition, investigation, and treatment. METHODS We distributed a multiple-choice email survey to senior members of the British Society for Gynaecological Endoscopy. Descriptive statistics were used to present the results. Results: We received 67 responses from experienced clinicians having provided over 800 combined years of endometriosis patient care. The majority of respondents managed over 100 endometriosis patients annually, for more than five years. Over one third had never managed a patient with symptomatic thoracic endometriosis; just 9% had managed more than 30 cases over the course of their career. Screening varied by modality with only 4% of clinicians always taking a history of respiratory symptoms while 69% would always screen for diaphragmatic endometriosis during laparoscopy. The management of symptomatic thoracic endometriosis varied widely with the commonest treatment being surgery followed by hormonal therapies. Regarding management, 71% of respondents felt the team should comprise of four or more different specialists, and 56% believed care should be centralised either regionally or nationally. CONCLUSIONS Thoracic endometriosis is poorly screened for amongst clinicians with varied management lacking a common diagnostic or therapeutic pathway in the United Kingdom. Specialists expressed a preference for women to be managed in a large multidisciplinary team setting at a regional or national level.
Collapse
Affiliation(s)
- M Hirsch
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, United Kingdom
| | - L Berg
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, United Kingdom
| | - I Gamaleldin
- Women's Health, Southmead Hospital, Bristol, United Kingdom
| | - S Vyas
- Women's Health, Southmead Hospital, Bristol, United Kingdom
| | - A Vashisht
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, United Kingdom
| |
Collapse
|
9
|
Lindegaard C, van Galen G, Aarsvold S, Berg L, Verwilghen D. Haematogenous septic arthritis, physitis and osteomyelitis in foals: A tutorial review on pathogenesis, diagnosis, treatment and prognosis. Part 2. EQUINE VET EDUC 2020. [DOI: 10.1111/eve.13393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Lindegaard
- Department of Veterinary Clinical Sciences Faculty of Health and Medical Sciences University of Copenhagen Taastrup Denmark
| | - G. van Galen
- School of Veterinary Sciences Faculty of Science University of Sydney Sydney New South Wales Australia
| | - S. Aarsvold
- Puchalski Equine Imaging Petaluma California USA
| | - L. Berg
- Department of Veterinary Clinical Sciences Faculty of Health and Medical Sciences University of Copenhagen Taastrup Denmark
| | - D. Verwilghen
- School of Veterinary Sciences Faculty of Science University of Sydney Sydney New South Wales Australia
| |
Collapse
|
10
|
De Montgomery C, Norredam M, Krasnik A, Petersen JH, Björkenstam E, Berg L, Hjern A, Sijbrandij M, Klimek P, Mittendorfer-Rutz E. Labour market marginalisation in young refugees with and without common mental disorders. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.1312] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
This study explored how inequality in labour market marginalisation (LMM) between refugees and their peers developed during early adulthood in Denmark and Sweden (DK/SE), and the role of common mental disorders (CMD) in these trends.
Methods
Using registry data, all refugees living in DK/SE in 2009-2012 who were born 1986-1993 and who immigrated as children (aged 0-17) were included (N = 13,390/45,687) and 1:5 matched on age, sex and municipality size to individuals born in DK/SE with at least one parent also born in DK/SE (N = 69,650/227,287). Information on psychiatric care (hospital and medicine) during 2009-2011 indicated CMD, while LMM was measured during 2012-2015 using income-based indicators. Probabilities of LMM were standardized by multiplying the estimated parameters of linear probability models in SE (adjusted for age, sex, municipality size, age of arrival, origin country, and accompanying family) onto the mean of the covariates in DK.
Results
The risk of LMM was 2-2.5 times higher for refugees across ages 20-29 in DK/SE. The risk tended to decrease in SE but increased in DK for refugees. The increase was accentuated for youth with CMD. However, CMD did not explain the inequality between refugee and majority youth. The increase in DK was driven by birth-cohort differences, while the trend in SE was consistent across birth cohorts.
Conclusions
CMD did not capture the vulnerability that sets refugees apart from their peers. While immigration and integration policy differences between DK and SE increased, the integration outcomes diminished, suggesting the importance of factors other than national level policies.
Key messages
Young refugees in DK/SE were more at risk of labour market marginalization than their majority peers. Healthcare contact for common mental disorders raised levels, but did not reduce inequalities. Labour market marginalisation decreased with age in Sweden but increased for refugees in Denmark, driven by birth cohort difference.
Collapse
Affiliation(s)
- C De Montgomery
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - M Norredam
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - A Krasnik
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - J H Petersen
- Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark
| | - E Björkenstam
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - L Berg
- Center for Health Equity Studies, Stockholm University, Stockholm, Sweden
| | - A Hjern
- Center for Health Equity Studies, Stockholm University, Stockholm, Sweden
| | - M Sijbrandij
- Faculty of Behavioural and Movement Sciences, VU Amsterdam, Amsterdam, Netherlands
| | - P Klimek
- Section for Science of Complex Systems, Medical University of Vienna, Vienna, Austria
| | - E Mittendorfer-Rutz
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
11
|
Berg L, Hjer A, Mittendorfer-Rutz E. Psychiatric care utilization among children in refugee families – a Swedish population-based study. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.1310] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Previous studies have demonstrated a high prevalence of mental health problems, in particular depression, anxiety, and posttraumatic stress disorder (PTSD), among individuals with experiences of war, persecution, and torture. Mental health problems can affect parenting and the well-being of the children. However, few large-scale studies have investigated the intergenerational effects of psychological trauma on children in refugee families.
Methods
Register data on all children living in Stockholm, Sweden, in 2016 (>90 000) were used to investigate utilization of child and adolescent psychiatric care in relation to parental PTSD, in foreign-born and Swedish-born refugee children compared to non-refugee children.
Results
In total, 13% of children in refugee families had a parent who had been treated for PTSD. Preliminary results showed an increased risk of psychiatric care use among foreign-born refugee children (HR: 2.68, 95% CI: 2.08-3.44) and in Swedish-born children in refugee families (HR: 1.86, 95% C.I: 1.43-2.41), whose mothers had been treated for PTSD. No association was observed in relation to PTSD diagnoses in fathers.
Conclusions
The findings indicate that refugee children with experience of PTSD of the mother were more than twice as likely to have been in contact with child and adolescent psychiatric services. This underlines the importance of making mental health care available so that adequate support and treatment is offered to refugees and their children.
Key messages
This study contributes with important information on the intergenerational effects of psychological trauma in refugee families. In order to prevent mental health problems in refugee children, Public health interventions for their parents with PTSD are crucial.
Collapse
Affiliation(s)
- L Berg
- Center for Health Equity Studies, Stockholm University, Stockholm, Sweden
| | - A Hjer
- Center for Health Equity Studies, Stockholm University, Stockholm, Sweden
| | - E Mittendorfer-Rutz
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
12
|
Hiyoshi A, Berg L, Grotta A, Almquist Y, Rostila M. Childhood bereavement and adult mortality: A 65-year follow-up of the Stockholm birth cohort. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.051] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
About 3% of children in Sweden, 4-5% in the UK, and 5% in the US experience the death of a parent during childhood. The event is highly unexpected and stressful and could have long-term social and health consequences across the life course. To alleviate grief, bereaved children may engage in health-damaging behaviours such as smoking, alcohol or drug abuse, violence, delinquency and risky sexual behaviour. Few studies have been able to study health consequences by childhood parental loss and mechanisms explaining associations across the life course. Using the Stockholm Birth Cohort Study (SBC), including all children born in 1953 in the metropolitan Stockholm area, we examined whether childhood bereavement is associated with all-cause mortality until age 63 and whether various pathways (e.g. economic, behavioral and social circumstances) account for the association. 15,117 individuals were followed between 1953 and 2018 using survey data and national registry data. We used Cox proportional hazard regression and mediation analysis for survival analysis to decompose direct and indirect effects. The death of a parent was associated with 40 to 50% elevated risk of mortality in offspring, and the association was mediated through delinquent behaviour in adolescence and income in adulthood especially for male offspring. Our findings suggest that parental loss has a life long impact on the mortality risk of bereaved children and that interventions targeting delinquency and socio-economic circumstances in bereaved children could be successful in reducing their excess mortality risk.
Key messages
Bereavement in childhood has a life-long impact on health. Interventions targeting delinquency and socio-economic circumstances could be successful in reducing the excess mortality risk.
Collapse
Affiliation(s)
- A Hiyoshi
- School of Medical Sciences, Örebro University, Örebro, Sweden
| | - L Berg
- Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
| | - A Grotta
- MEBB, Karolinska Institutet, Stockholm, Sweden
| | - Y Almquist
- Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
| | - M Rostila
- Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
| |
Collapse
|
13
|
Bergqvist F, Sundström Y, Shang MM, Gunnarsson I, Lundberg IE, Sundström M, Jakobsson PJ, Berg L. Anti-Inflammatory Properties of Chemical Probes in Human Whole Blood: Focus on Prostaglandin E 2 Production. Front Pharmacol 2020; 11:613. [PMID: 32435199 PMCID: PMC7218097 DOI: 10.3389/fphar.2020.00613] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/20/2020] [Indexed: 12/29/2022] Open
Abstract
We screened 57 chemical probes, high-quality tool compounds, and relevant clinically used drugs to investigate their effect on pro-inflammatory prostaglandin E2 (PGE2) production and interleukin-8 (IL-8) secretion in human whole blood. Freshly drawn blood from healthy volunteers and patients with systemic lupus erythematosus (SLE) or dermatomyositis was incubated with compounds at 0.1 or 1 µM and treated with lipopolysaccharide (LPS, 10 µg/ml) to induce a pro-inflammatory condition. Plasma was collected after 24 h for lipid profiling using liquid chromatography tandem mass spectrometry (LC-MS/MS) and IL-8 quantification using enzyme-linked immunosorbent assay (ELISA). Each compound was tested in at least four donors at one concentration based on prior knowledge of binding affinities and in vitro activity. Our screening suggested that PD0325901 (MEK-1/2 inhibitor), trametinib (MEK-1/2 inhibitor), and selumetinib (MEK-1 inhibitor) decreased while tofacitinib (JAK inhibitor) increased PGE2 production. These findings were validated by concentration-response experiment in two donors. Moreover, the tested MEK inhibitors decreased thromboxane B2 (TXB2) production and IL-8 secretion. We also investigated the lysophophatidylcholine (LPC) profile in plasma from treated whole blood as these lipids are potentially important mediators in inflammation, and we did not observe any changes in LPC profiles. Collectively, we deployed a semi-high throughput and robust methodology to investigate anti-inflammatory properties of new chemical probes.
Collapse
Affiliation(s)
- Filip Bergqvist
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
- The Structural Genomic Consortium (SGC), Karolinska Institutet, Stockholm, Sweden
| | - Yvonne Sundström
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
- The Structural Genomic Consortium (SGC), Karolinska Institutet, Stockholm, Sweden
| | - Ming-Mei Shang
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
- The Structural Genomic Consortium (SGC), Karolinska Institutet, Stockholm, Sweden
| | - Iva Gunnarsson
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
| | - Ingrid E. Lundberg
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
| | - Michael Sundström
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
- The Structural Genomic Consortium (SGC), Karolinska Institutet, Stockholm, Sweden
| | - Per-Johan Jakobsson
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
- The Structural Genomic Consortium (SGC), Karolinska Institutet, Stockholm, Sweden
| | - Louise Berg
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden
- The Structural Genomic Consortium (SGC), Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
14
|
Lindmark U, Ahlstrand I, Ekman A, Berg L, Hedén L, Källstrand J, Larsson M, Nunstedt H, Oxelmark L, Pennbrant S, Sundler A, Larsson I. Health-promoting factors in higher education for a sustainable working life - protocol for a multicenter longitudinal study. BMC Public Health 2020; 20:233. [PMID: 32059653 PMCID: PMC7023742 DOI: 10.1186/s12889-020-8181-3] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 01/08/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The World Health Organization has highlighted the importance of health promotion for health service providers in order to ensure sustainable working life for individuals involved in providing health services. Such sustainability begins when students are preparing to manage their own future health and welfare in working life. It has been suggested that universities, employees and trainee health professionals should adopt or follow a salutogenic approach that not only complements the providing of information on known health risks but also favors health promotion strategies. This paper describes the study design and data collection methods in a planned study aiming to explore health-promoting factors for a sustainable working life among students in higher education within healthcare and social work. METHODS This protocol describes a multicenter longitudinal study involving Swedish students on higher education programs in the healthcare and social work sectors. In 2018, the study invited students on seven education programs at six universities to participate. These programs were for qualification as: biomedical laboratory scientists (n = 121); dental hygienists (n = 87); nurses (n = 1411); occupational therapists (n = 111); physiotherapists (n = 48); radiographers (n = 60); and, social workers (n = 443). In total, 2283 students were invited to participate. Participants completed a baseline, a self-reported questionnaire including six validated instruments measuring health-promoting factors and processes. There are to be five follow-up questionnaires. Three while the students are studying, one a year after graduating, and one three years after graduating. Each questionnaire captures different health-promoting dimensions, namely: health-promoting resources (i.e. sense of coherence); occupational balance; emotional intelligence; health and welfare; social interaction; and work and workplace experiences/perceptions. DISCUSSION This study focuses on the vastly important aspect of promoting a sustainable working life for healthcare and social work employees. In contrast to previous studies in this area, the present study uses different, validated instruments in health promotion, taking a salutogenic approach. It is hoped that, by stimulating the implementation of new strategies, the study's findings will lead to education programs that prepare students better for a sustainable working life in healthcare and social work.
Collapse
Affiliation(s)
- U Lindmark
- Centre for Oral Health, Department of Natural Science and Biomedicine, School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - I Ahlstrand
- Department of Rehabilitation, School of Health and Welfare, Jönköping University, Jönköping, Sweden.
| | - A Ekman
- Department of Social Work, School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - L Berg
- Institute of Health and Care Sciences, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - L Hedén
- Faculty of Caring Science, Work Life, and Social Welfare, University of Borås, Borås, Sweden
| | - J Källstrand
- School of Health and Welfare, Halmstad University, Halmstad, Sweden
| | - M Larsson
- School of Health and Education, University of Skövde, Skövde, Sweden
| | - H Nunstedt
- Department of Health Sciences, University West, Trollhättan, Sweden
| | - L Oxelmark
- Institute of Health and Care Sciences, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - S Pennbrant
- Department of Health Sciences, University West, Trollhättan, Sweden
| | - A Sundler
- Faculty of Caring Science, Work Life, and Social Welfare, University of Borås, Borås, Sweden
| | - I Larsson
- School of Health and Welfare, Halmstad University, Halmstad, Sweden
| | | |
Collapse
|
15
|
Fang H, De Wolf H, Knezevic B, Burnham KL, Osgood J, Sanniti A, Lledó Lara A, Kasela S, De Cesco S, Wegner JK, Handunnetthi L, McCann FE, Chen L, Sekine T, Brennan PE, Marsden BD, Damerell D, O'Callaghan CA, Bountra C, Bowness P, Sundström Y, Milani L, Berg L, Göhlmann HW, Peeters PJ, Fairfax BP, Sundström M, Knight JC. A genetics-led approach defines the drug target landscape of 30 immune-related traits. Nat Genet 2019; 51:1082-1091. [PMID: 31253980 PMCID: PMC7124888 DOI: 10.1038/s41588-019-0456-1] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 05/24/2019] [Indexed: 12/22/2022]
Abstract
Most candidate drugs currently fail later-stage clinical trials, largely due to poor prediction of efficacy on early target selection1. Drug targets with genetic support are more likely to be therapeutically valid2,3, but the translational use of genome-scale data such as from genome-wide association studies for drug target discovery in complex diseases remains challenging4-6. Here, we show that integration of functional genomic and immune-related annotations, together with knowledge of network connectivity, maximizes the informativeness of genetics for target validation, defining the target prioritization landscape for 30 immune traits at the gene and pathway level. We demonstrate how our genetics-led drug target prioritization approach (the priority index) successfully identifies current therapeutics, predicts activity in high-throughput cellular screens (including L1000, CRISPR, mutagenesis and patient-derived cell assays), enables prioritization of under-explored targets and allows for determination of target-level trait relationships. The priority index is an open-access, scalable system accelerating early-stage drug target selection for immune-mediated disease.
Collapse
Affiliation(s)
- Hai Fang
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | - Bogdan Knezevic
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Katie L Burnham
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Julie Osgood
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Anna Sanniti
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Alicia Lledó Lara
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Silva Kasela
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Stephane De Cesco
- Alzheimer's Research UK Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, Oxford, UK
| | | | | | - Fiona E McCann
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Liye Chen
- Botnar Research Centre, University of Oxford, Oxford, UK
| | - Takuya Sekine
- Botnar Research Centre, University of Oxford, Oxford, UK
| | - Paul E Brennan
- Alzheimer's Research UK Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, Oxford, UK
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Brian D Marsden
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - David Damerell
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Chris A O'Callaghan
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | - Chas Bountra
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Paul Bowness
- Botnar Research Centre, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | - Yvonne Sundström
- Structural Genomics Consortium, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Lili Milani
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Louise Berg
- Structural Genomics Consortium, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | | | | | - Benjamin P Fairfax
- Department of Oncology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Michael Sundström
- Structural Genomics Consortium, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Julian C Knight
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK.
| |
Collapse
|
16
|
Konradsson E, Kügele M, Petersson K, Berg L, Gebre-Medhin M, Ceberg S. EP-1978 Surface guided coplanar and non-coplanar stereotactic radiotherapy with open masks – a phantom study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32398-9] [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]
|
17
|
Mannerberg A, Kügele M, Berg L, Edvardsson A, Alkner S, Ceberg S. EP-2047: Surface guided radiotherapy increases setup accuracy for locoregional breast cancer patients. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32356-9] [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: 10/14/2022]
|
18
|
Charboti S, Berg L. Post-traumatic stress disorder in parents and school performance in their children. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx187.215a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Charboti
- Karolinska Institutet, Stockholm, Sweden
| | - L Berg
- Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
19
|
Kugele M, Edvardsson A, Ceberg S, Berg L, Andersson-Ljus C, Alkner S. Dosimetric Effects of Intrafractional Target Motion Using the Xiphiod Process as a Surrogate During Deep Inspiration Breath Hold for Left-Sided Breast Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2243] [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: 10/18/2022]
|
20
|
Berg L, Kügele M, Edvardsson A, Alkner S, Andersson-Ljus C, Ceberg S. EP-1622: Intra-fractional isocenter position analysis and dose evaluation of DIBH using surface guided RT. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32057-1] [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: 10/19/2022]
|
21
|
Shchetynsky K, Diaz-Gallo LM, Folkersen L, Hensvold AH, Catrina AI, Berg L, Klareskog L, Padyukov L. Discovery of new candidate genes for rheumatoid arthritis through integration of genetic association data with expression pathway analysis. Arthritis Res Ther 2017; 19:19. [PMID: 28148290 PMCID: PMC5288892 DOI: 10.1186/s13075-017-1220-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 09/11/2016] [Accepted: 01/04/2017] [Indexed: 12/13/2022] Open
Abstract
Background Here we integrate verified signals from previous genetic association studies with gene expression and pathway analysis for discovery of new candidate genes and signaling networks, relevant for rheumatoid arthritis (RA). Method RNA-sequencing-(RNA-seq)-based expression analysis of 377 genes from previously verified RA-associated loci was performed in blood cells from 5 newly diagnosed, non-treated patients with RA, 7 patients with treated RA and 12 healthy controls. Differentially expressed genes sharing a similar expression pattern in treated and untreated RA sub-groups were selected for pathway analysis. A set of “connector” genes derived from pathway analysis was tested for differential expression in the initial discovery cohort and validated in blood cells from 73 patients with RA and in 35 healthy controls. Results There were 11 qualifying genes selected for pathway analysis and these were grouped into two evidence-based functional networks, containing 29 and 27 additional connector molecules. The expression of genes, corresponding to connector molecules was then tested in the initial RNA-seq data. Differences in the expression of ERBB2, TP53 and THOP1 were similar in both treated and non-treated patients with RA and an additional nine genes were differentially expressed in at least one group of patients compared to healthy controls. The ERBB2, TP53. THOP1 expression profile was successfully replicated in RNA-seq data from peripheral blood mononuclear cells from healthy controls and non-treated patients with RA, in an independent collection of samples. Conclusion Integration of RNA-seq data with findings from association studies, and consequent pathway analysis implicate new candidate genes, ERBB2, TP53 and THOP1 in the pathogenesis of RA. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1220-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Klementy Shchetynsky
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden.
| | - Lina-Marcella Diaz-Gallo
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden
| | - Lasse Folkersen
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden
| | - Aase Haj Hensvold
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden
| | - Anca Irinel Catrina
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden
| | - Louise Berg
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden
| | - Lars Klareskog
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden
| | - Leonid Padyukov
- Rheumatology Unit, Department of Medicine Centre of Molecular Medicine, CMM:L8:04, Karolinska Institutet/Karolinska University Hospital Solna, 171 61, Stockholm, Sweden
| |
Collapse
|
22
|
Franzen-Röhl E, Schepis D, Atterfelt F, Franck K, Wikström A, Liljeqvist JÅ, Bergström T, Aurelius E, Kärre K, Berg L, Gaines H. Herpes simplex virus specific T cell response in a cohort with primary genital infection correlates inversely with frequency of subsequent recurrences. Sex Transm Infect 2016; 93:169-174. [PMID: 27903680 DOI: 10.1136/sextrans-2016-052811] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/04/2016] [Accepted: 10/15/2016] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVES During the last decades, a changing epidemiological pattern of genital herpes simplex virus (HSV) infection has emerged. Primary infection is now caused as often by HSV-1 as by HSV-2. Once established, HSV can be reactivated leading to recurrent mucocutaneous lesions as well as meningitis. Why some otherwise immune-competent individuals experience severe and frequent recurrences is not known, and the immunological mechanism underlying recurrent symptomatic HSV infection is not fully understood. In this study, we investigate and characterise the immune response of patients with first episode of HSV genital infection and its relation to the frequency of symptomatic recurrences. METHODS In this cohort study, clinical and immunological data were collected from 29 patients who were followed 1 year after presenting with a first episode of genital or meningeal HSV infection. They were classified by PCR and serology as those with primary HSV-1, primary HSV-2 and non-primary HSV-2 infection. RESULTS HSV-specific interleukin(Il)-4 and Il-10 responses at first visit were higher in primary infected HSV-2 infected patients experiencing lower numbers of recurrences during subsequent year. CONCLUSIONS The median number of recurrences following primary HSV-2 genital infection may partly be predicted by the strength of an early HSV-specific IL-4 and IL-10 response.
Collapse
Affiliation(s)
- Elisabeth Franzen-Röhl
- Unit of Infectious Diseases, Department of Medicine, Solna (MedS), Karolinska Institutet and the Karolinska University Hospital, Stockholm, Sweden
| | - Danika Schepis
- Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Atterfelt
- Department of Preparedness, Swedish Institute for Communicable Disease Control, Stockholm, Sweden
| | - Kristina Franck
- Department of Preparedness, Swedish Institute for Communicable Disease Control, Stockholm, Sweden
| | - Arne Wikström
- Department of Medicine, Solna, Unit of Dermatology, Karolinska Institutet, Stockholm, Sweden
| | - Jan-Åke Liljeqvist
- Department of Infectious Diseases, Section of Virology, University of Gothenburg, Gothenburg, Sweden
| | - Tomas Bergström
- Department of Infectious Diseases, Section of Virology, University of Gothenburg, Gothenburg, Sweden
| | - Elisabeth Aurelius
- Unit of Infectious Diseases, Department of Medicine, Solna (MedS), Karolinska Institutet and the Karolinska University Hospital, Stockholm, Sweden
| | - Klas Kärre
- Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Louise Berg
- Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Hans Gaines
- Unit of Infectious Diseases, Department of Medicine, Solna (MedS), Karolinska Institutet and the Karolinska University Hospital, Stockholm, Sweden.,Department of Preparedness, Swedish Institute for Communicable Disease Control, Stockholm, Sweden
| |
Collapse
|
23
|
Folkersen L, Brynedal B, Diaz-Gallo LM, Ramsköld D, Shchetynsky K, Westerlind H, Sundström Y, Schepis D, Hensvold A, Vivar N, Eloranta ML, Rönnblom L, Brunak S, Malmström V, Catrina A, Moerch UG, Klareskog L, Padyukov L, Berg L. Integration of known DNA, RNA and protein biomarkers provides prediction of anti-TNF response in rheumatoid arthritis: results from the COMBINE study. Mol Med 2016; 22:322-328. [PMID: 27532898 DOI: 10.2119/molmed.2016.00078] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/24/2016] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE In rheumatoid arthritis (RA) several recent efforts have sought to discover means of predicting which patients would benefit from treatment. However, results have been discrepant with few successful replications. Our objective was to build a biobank with DNA, RNA and protein measurements to test the claim that the current state-of-the-art precision medicine will benefit RA patients. METHODS We collected 451 blood samples from 61 healthy individuals and 185 RA patients initiating treatment, before treatment initiation and at a 3 month follow-up time. All samples were subjected to high-throughput RNA sequencing, DNA genotyping, extensive proteomics and flow cytometry measurements, as well as comprehensive clinical phenotyping. Literature review identified 2 proteins, 52 single-nucleotide polymorphisms (SNPs) and 72 gene-expression biomarkers that had previously been proposed as predictors of TNF inhibitor response (∆DAS28-CRP). RESULTS From these published TNFi biomarkers we found that 2 protein, 2 SNP and 8 mRNA biomarkers could be replicated in the 59 TNF initiating patients. Combining these replicated biomarkers into a single signature we found that we could explain 51% of the variation in ∆DAS28-CRP. This corresponds to a sensitivity of 0.73 and specificity of 0.78 for the prediction of three month ∆DAS28-CRP better than -1.2. CONCLUSIONS The COMBINE biobank is currently the largest collection of multi-omics data from RA patients with high potential for discovery and replication. Taking advantage of this we surveyed the current state-of-the-art of drug-response stratification in RA, and identified a small set of previously published biomarkers available in peripheral blood which predicts clinical response to TNF blockade in this independent cohort.
Collapse
Affiliation(s)
- Lasse Folkersen
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark.,Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Boel Brynedal
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lina Marcela Diaz-Gallo
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Daniel Ramsköld
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Klementy Shchetynsky
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Helga Westerlind
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Yvonne Sundström
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Danika Schepis
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Aase Hensvold
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Nancy Vivar
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | | | - Lars Rönnblom
- Department of Medical Sciences, Uppsala Universitet, Uppsala, Sweden
| | - Søren Brunak
- Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Vivianne Malmström
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Anca Catrina
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | | | - Lars Klareskog
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Leonid Padyukov
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Louise Berg
- Unit of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
24
|
Notarnicola A, Näsman L, Tang Q, Tjärlund A, Elvin K, Berg L, Norkko J, Lundberg I, Antovic A. AB0588 Risk Factors for Thromboembolic Events in Patients with Idiopathic Inflammatory Myopathies. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
25
|
Shimakawa Y, Njai HF, Takahashi K, Berg L, Ndow G, Jeng-Barry A, Ceesay A, Tamba S, Opoku E, Taal M, Akbar SMF, Arai M, D'Alessandro U, Taylor-Robinson SD, Njie R, Mishiro S, Thursz MR, Lemoine M. Hepatitis E virus infection and acute-on-chronic liver failure in West Africa: a case-control study from The Gambia. Aliment Pharmacol Ther 2016; 43:375-84. [PMID: 26623967 DOI: 10.1111/apt.13484] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 08/04/2015] [Revised: 09/17/2015] [Accepted: 11/04/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND In sub-Saharan Africa, it is unknown whether hepatitis E virus (HEV) infection is a common precipitating event of acute-on-chronic liver failure (ACLF). AIMS To estimate the prevalence of HEV infection in general population and assess whether HEV is a common trigger of ACLF in cirrhotic patients in The Gambia, West Africa. METHODS We first conducted an HEV sero-survey in healthy volunteers. We then tested cirrhotic patients with ACLF (cases) and compensated cirrhosis (controls) for anti-HEV IgG as a marker of exposure to HEV, and anti-HEV IgA and HEV RNA as a marker of recent infection. We also described the characteristics and survival of the ACLF cases and controls. RESULTS In the healthy volunteers (n = 204), 13.7% (95% CI: 9.6-19.2) were positive for anti-HEV IgG, and none had positive HEV viraemia. After adjusting for age and sex, the following were associated with positive anti-HEV IgG: being a Christian, a farmer, drinking water from wells, handling pigs and eating pork. In 40 cases (median age: 45 years, 72.5% male) and 71 controls (39 years, 74.6% male), ≥70% were infected with hepatitis B virus. Although hepatitis B flare and sepsis were important precipitating events of ACLF, none had marker of acute HEV. ACLF cases had high (70.0%) 28-day mortality. CONCLUSIONS Hepatitis E virus infection is endemic in The Gambia, where both faecal-oral route (contaminated water) and zoonotic transmission (pigs/pork meat) may be important. However, acute HEV was not a common cause of acute-on-chronic liver failure in The Gambia.
Collapse
Affiliation(s)
- Y Shimakawa
- MRC Unit The Gambia, Banjul, The Gambia.,Unité d'Épidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France
| | - H F Njai
- MRC Unit The Gambia, Banjul, The Gambia
| | - K Takahashi
- Department of Medical Sciences, Toshiba General Hospital, Tokyo, Japan
| | - L Berg
- MRC Unit The Gambia, Banjul, The Gambia.,Hepatology Unit, Department of Medicine, Imperial College London, London, UK
| | - G Ndow
- MRC Unit The Gambia, Banjul, The Gambia.,Hepatology Unit, Department of Medicine, Imperial College London, London, UK
| | | | - A Ceesay
- MRC Unit The Gambia, Banjul, The Gambia
| | - S Tamba
- MRC Unit The Gambia, Banjul, The Gambia
| | - E Opoku
- MRC Unit The Gambia, Banjul, The Gambia.,Hepatology Unit, Department of Medicine, Imperial College London, London, UK
| | - M Taal
- Ministry of Health and Social Welfare, Banjul, The Gambia
| | - S M F Akbar
- Department of Medical Sciences, Toshiba General Hospital, Tokyo, Japan
| | - M Arai
- Department of Medical Sciences, Toshiba General Hospital, Tokyo, Japan
| | | | - S D Taylor-Robinson
- Hepatology Unit, Department of Medicine, Imperial College London, London, UK
| | - R Njie
- MRC Unit The Gambia, Banjul, The Gambia.,The Gambia Hepatitis Intervention Study, IARC, c/o MRC Unit, Banjul, The Gambia
| | - S Mishiro
- Department of Medical Sciences, Toshiba General Hospital, Tokyo, Japan
| | - M R Thursz
- Hepatology Unit, Department of Medicine, Imperial College London, London, UK
| | - M Lemoine
- MRC Unit The Gambia, Banjul, The Gambia.,Hepatology Unit, Department of Medicine, Imperial College London, London, UK
| |
Collapse
|
26
|
Aftab O, Sundström Y, Bergqvist F, Kultima K, Gustafsson MG, Larsson R, Sundström M, Ossipova E, Lengqvist J, Jakobsson PJ, Rubin J, Berg L. A8.07 Characterising effects of epigenetic regulation in assays using peripheral blood mononuclear cells from patients with inflammatory diseases. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
27
|
Rostila M, Berg L, Saarela J, Hjern A. Sibling death in childhood predicts mortality in young adults-a Swedish national cohort study. Eur J Public Health 2015. [DOI: 10.1093/eurpub/ckv168.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
28
|
Berg L, Edvardsson A, Nordström F, Ceberg S. EP-1487: Investigation of gating techniques and visual guidance using surface scanning and pressure monitoring. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41479-3] [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: 10/23/2022]
|
29
|
Särnblad S, Berg L, Detlofsson I, Jönsson A, Forsander G. Diabetes management in Swedish schools: a national survey of attitudes of parents, children, and diabetes teams. Pediatr Diabetes 2014; 15:550-6. [PMID: 24635781 DOI: 10.1111/pedi.12133] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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: 09/06/2013] [Revised: 12/20/2013] [Accepted: 01/22/2014] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Parents of children with type 1 diabetes often raise complaints about self-care support during school time. The aim of this study was to investigate attitudes to diabetes care in school reported by children with type 1 diabetes, their parents, and their diabetes teams. METHODS Children who had completed preschool class or at least one grade in the 9-yr compulsory school system were invited to participate. Data were collected using separate questionnaires for the children and their parents. In addition, the members of the diabetes team answered a separate questionnaire. All pediatric diabetes centers in Sweden were invited to participate in the study. RESULTS All Swedish children and adolescents with diabetes are treated at pediatric diabetes centers. Out of 44 eligible centers, 41 were able to participate. The questionnaires were completed by 317 children and adolescents and 323 parents. The mean age was 11.4 ± 2.7 yr and hemoglobin A1c (HbA1c) was 61.8 ± 12.4 mmol/mol (7.8 ± 1.1%). For 57% of the children, there was no member of staff at the school with principal responsibility to support diabetes self-care. A written action plan for hypoglycemia existed for 60% of the children. Twenty-one percent of the parents regularly gave less insulin than they calculated would be needed at breakfast because of fear of hypoglycemia during school time. CONCLUSIONS Although Sweden has legislation underlining the specific need for diabetes care in school, this nationwide study demonstrates deficiencies in the support of self-care management.
Collapse
Affiliation(s)
- S Särnblad
- Department of Pediatrics, Örebro University Hospital, Örebro, Sweden; School of Medicine Sciences, Örebro University, Örebro, Sweden
| | | | | | | | | |
Collapse
|
30
|
Svenningsson P, Berg L, Matthews D, Ionescu DF, Richards E, Niciu M, Malinger A, Toups M, Manji H, Trivedi MH, Zarate CA, Greengard P. Preliminary evidence that early reduction in p11 levels in natural killer cells and monocytes predicts the likelihood of antidepressant response to chronic citalopram. Mol Psychiatry 2014; 19:962-4. [PMID: 24614495 PMCID: PMC4161667 DOI: 10.1038/mp.2014.13] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The prediction of treatment response in many neuropsychiatric disorders would be facilitated by easily accessible biomarkers. Using flow cytometry, we herein demonstrate correlations between early reductions of p11 levels in Natural Killer (NK) cells and monocytes and antidepressant response to citalopram in patients with major depressive disorder (MDD).
Collapse
Affiliation(s)
- P Svenningsson
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - L Berg
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - D Matthews
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, USA
| | - DF Ionescu
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, USA
| | - E Richards
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, USA
| | - M Niciu
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, USA
| | - A Malinger
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, USA
| | - M Toups
- Department of Psychiatry and the Mood Disorders Research Program and Clinic, University of Texas Southwestern Medical Center, Dallas, USA
| | - H Manji
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, USA
| | - MH Trivedi
- Department of Psychiatry and the Mood Disorders Research Program and Clinic, University of Texas Southwestern Medical Center, Dallas, USA
| | - CA Zarate
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, USA
| | - P Greengard
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, USA
| |
Collapse
|
31
|
Laurent AJ, Bindslev N, Johansson B, Berg L. Synergistic effects of ethanol and isopentenyl pyrophosphate on expansion of γδ T cells in synovial fluid from patients with arthritis. PLoS One 2014; 9:e103683. [PMID: 25090614 PMCID: PMC4121167 DOI: 10.1371/journal.pone.0103683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 04/29/2014] [Indexed: 01/03/2023] Open
Abstract
Low to moderate ethanol consumption has been associated with protective effects in autoimmune diseases such as rheumatoid arthritis, RA. An expansion of γδ T cells induced by isopentenyl pyrophosphate, IPP, likewise seems to have a protective role in arthritis. The aim of this project was to test the hypothesis that low doses of ethanol can enhance IPP-induced expansion of synovial fluid γδ T cells from patients with arthritis and may thereby potentially account for the beneficial effects of ethanol on symptoms of the arthritic process. Thus, mononuclear cells from synovial fluid (SF) from 15 patients with arthritis and from peripheral blood (PB) from 15 healthy donors were stimulated with low concentrations of ethanol and IPP for 7 days in vitro. IPP in combination with ethanol 0.015%, 2.5 mM, equivalent to the decrease per hour in blood ethanol concentration due to metabolism, gave a significantly higher fractional expansion of SF γδ T cells compared with IPP alone after 7 days (ratio 10.1+/-4.0, p<0.0008, n = 12) in patients with arthritis. Similar results were obtained for PB γδ T cells from healthy controls (ratio 2.0+/-0.4, p<0.011, n = 15). The augmented expansion of γδ T cells in SF is explained by a higher proliferation (p = 0.0034, n = 11) and an increased survival (p<0.005, n = 11) in SF cultures stimulated with IPP plus ethanol compared to IPP alone. The synergistic effects of IPP and ethanol indicate a possible allosteric effect of ethanol. Similar effects could be seen when stimulating PB with ethanol in presence of risedronate, which has the ability to increase endogenous levels of IPP. We conclude that expansion of γδ T cells by combinatorial drug effects, possibly in fixed-dose combination, FDC, of ethanol in the presence of IPP might give a protective role in diseases such as arthritis.
Collapse
MESH Headings
- Adult
- Aged
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/immunology
- Arthritis, Rheumatoid/pathology
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Drug Synergism
- Ethanol/pharmacology
- Etidronic Acid/analogs & derivatives
- Etidronic Acid/pharmacology
- Etidronic Acid/therapeutic use
- Female
- Hemiterpenes/pharmacology
- Humans
- Interferon-gamma/biosynthesis
- Lymphocyte Activation/drug effects
- Male
- Middle Aged
- Models, Biological
- Organophosphorus Compounds/pharmacology
- Phenotype
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Risedronic Acid
- Synovial Fluid/cytology
- Synovial Fluid/drug effects
- Synovial Fluid/immunology
- T-Lymphocyte Subsets/drug effects
Collapse
Affiliation(s)
- Agneta J. Laurent
- Rheumatology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- * E-mail:
| | - Niels Bindslev
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Björn Johansson
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Louise Berg
- Rheumatology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
32
|
Nielsen N, Pascal V, Fasth AER, Sundström Y, Galsgaard ED, Ahern D, Andersen M, Baslund B, Bartels EM, Bliddal H, Feldmann M, Malmström V, Berg L, Spee P, Söderström K. Balance between activating NKG2D, DNAM-1, NKp44 and NKp46 and inhibitory CD94/NKG2A receptors determine natural killer degranulation towards rheumatoid arthritis synovial fibroblasts. Immunology 2014; 142:581-93. [PMID: 24673109 PMCID: PMC4107668 DOI: 10.1111/imm.12271] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [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: 10/27/2013] [Revised: 01/30/2014] [Accepted: 02/03/2014] [Indexed: 12/28/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation and synovial hyperplasia leading to progressive joint destruction. Fibroblast-like synoviocytes (FLS) are central components of the aggressive, tumour-like synovial structure termed pannus, which invades the joint space and cartilage. A distinct natural killer (NK) cell subset expressing the inhibitory CD94/NKG2A receptor is present in RA synovial fluid. Little is known about possible cellular interactions between RA-FLS and NK cells. We used cultured RA-FLS and the human NK cell line Nishi, of which the latter expresses an NK receptor repertoire similar to that of NK cells in RA synovial fluid, as an in vitro model system of RA-FLS/NK cell cross-talk. We show that RA-FLS express numerous ligands for both activating and inhibitory NK cell receptors, and stimulate degranulation of Nishi cells. We found that NKG2D, DNAM-1, NKp46 and NKp44 are the key activating receptors involved in Nishi cell degranulation towards RA-FLS. Moreover, blockade of the interaction between CD94/NKG2A and its ligand HLA-E expressed on RA-FLS further enhanced Nishi cell degranulation in co-culture with RA-FLS. Using cultured RA-FLS and the human NK cell line Nishi as an in vitro model system of RA-FLS/NK cell cross-talk, our results suggest that cell-mediated cytotoxicity of RA-FLS may be one mechanism by which NK cells influence local joint inflammation in RA.
Collapse
MESH Headings
- Antigens, Differentiation, T-Lymphocyte/immunology
- Antigens, Differentiation, T-Lymphocyte/metabolism
- Arthritis, Rheumatoid/immunology
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- Cell Degranulation/immunology
- Cell Line
- Female
- Fibroblasts/immunology
- Fibroblasts/metabolism
- Fibroblasts/pathology
- Histocompatibility Antigens Class I/biosynthesis
- Histocompatibility Antigens Class I/immunology
- Humans
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Killer Cells, Natural/pathology
- Male
- NK Cell Lectin-Like Receptor Subfamily C/immunology
- NK Cell Lectin-Like Receptor Subfamily C/metabolism
- NK Cell Lectin-Like Receptor Subfamily D/immunology
- NK Cell Lectin-Like Receptor Subfamily D/metabolism
- NK Cell Lectin-Like Receptor Subfamily K/immunology
- NK Cell Lectin-Like Receptor Subfamily K/metabolism
- Natural Cytotoxicity Triggering Receptor 1/immunology
- Natural Cytotoxicity Triggering Receptor 1/metabolism
- Natural Cytotoxicity Triggering Receptor 2/immunology
- Natural Cytotoxicity Triggering Receptor 2/metabolism
- Synovial Membrane/immunology
- Synovial Membrane/metabolism
- Synovial Membrane/pathology
- Up-Regulation/immunology
- HLA-E Antigens
Collapse
Affiliation(s)
- Natasja Nielsen
- Department of Translational Immunology, Novo Nordisk A/SMåløv, Denmark
| | - Veronique Pascal
- Department of Translational Immunology, Novo Nordisk A/SMåløv, Denmark
| | - Andreas E R Fasth
- Rheumatology Unit, Department of Medicine, Karolinska University HospitalStockholm, Sweden
| | - Yvonne Sundström
- Rheumatology Unit, Department of Medicine, Karolinska University HospitalStockholm, Sweden
| | | | - David Ahern
- Kennedy Institute of Rheumatology, University of OxfordLondon, UK
| | - Martin Andersen
- Department of Translational Immunology, Novo Nordisk A/SMåløv, Denmark
- The Parker Institute, Department of Rheumatology, Copenhagen University HospitalFrederiksberg, Denmark
| | - Bo Baslund
- Department of Rheumatology, Rigshospitalet, Copenhagen University HospitalCopenhagen, Denmark
| | - Else M Bartels
- The Parker Institute, Department of Rheumatology, Copenhagen University HospitalFrederiksberg, Denmark
| | - Henning Bliddal
- The Parker Institute, Department of Rheumatology, Copenhagen University HospitalFrederiksberg, Denmark
- Faculty of Health Sciences, University of CopenhagenCopenhagen, Denmark
| | - Marc Feldmann
- Kennedy Institute of Rheumatology, University of OxfordLondon, UK
| | - Vivianne Malmström
- Rheumatology Unit, Department of Medicine, Karolinska University HospitalStockholm, Sweden
| | - Louise Berg
- Rheumatology Unit, Department of Medicine, Karolinska University HospitalStockholm, Sweden
| | - Pieter Spee
- Department of Translational Immunology, Novo Nordisk A/SMåløv, Denmark
| | - Kalle Söderström
- Department of Translational Immunology, Novo Nordisk A/SMåløv, Denmark
- Kennedy Institute of Rheumatology, University of OxfordLondon, UK
| |
Collapse
|
33
|
Djernaes J, Vedding Nielsen J, Berg L. Effect of X-Ray Beam Angle and Superimposition on Radiographic Evaluation of Kissing Spines Syndrome. Equine Vet J 2014. [DOI: 10.1111/evj.12267_120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J Djernaes
- Department of Veterinary Clinical and Animal Sciences; Faculty of Health and Medical Sciences; Copenhagen Denmark
| | | | - L Berg
- Department of Veterinary Clinical and Animal Sciences; Faculty of Health and Medical Sciences; Copenhagen Denmark
| |
Collapse
|
34
|
Pascal V, Sundström Y, Fasth A, Malmström V, Berg L, Kvist P, Spee P, Galsgaard E. AB0071 Characterization of NNC141-0100, a therapeutic antibody targeting inhibitory CD94/NKG2A receptors expressed in inflamed joints of rheumatoid arthritis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
35
|
Söderström K, Sundström Y, Berg L, Schepis D, Galsgaard E, Klareskog L, Wagtmann N. OP0142 Masking CD94/NKG2A using a novel therapeutic MAB results in significant suppression of IL-6 levels and reduced osteoclast formation in rheumatoid arthritis ex vivo cultures. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
36
|
Avik A, Sundström Y, Berg L, Bruchfeld A, Malmström V, Gunnarsson I. GPA and MPA patients have different serum cytokine profiles. Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.141] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
37
|
Öhlén J, Berg L, Björk Brämberg E, Engström Å, German Millberg L, Höglund I, Jacobsson C, Lepp M, Lidén E, Lindström I, Petzäll K, Söderberg S, Wijk H. Students' learning as the focus for shared involvement between universities and clinical practice: a didactic model for postgraduate degree projects. Adv Health Sci Educ Theory Pract 2012; 17:471-487. [PMID: 21879390 DOI: 10.1007/s10459-011-9323-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Accepted: 08/21/2011] [Indexed: 05/31/2023]
Abstract
In an academic programme, completion of a postgraduate degree project could be a significant means of promoting student learning in evidence- and experience-based practice. In specialist nursing education, which through the European Bologna process would be raised to the master's level, there is no tradition of including a postgraduate degree project. The aim was to develop a didactic model for specialist nursing students' postgraduate degree projects within the second cycle of higher education (master's level) and with a specific focus on nurturing shared involvement between universities and healthcare settings. This study embodies a participatory action research and theory-generating design founded on empirically practical try-outs. The 3-year project included five Swedish universities and related healthcare settings. A series of activities was performed and a number of data sources secured. Constant comparative analysis was applied. A didactic model is proposed for postgraduate degree projects in specialist nursing education aimed at nurturing shared involvement between universities and healthcare settings. The focus of the model is student learning in order to prepare the students for participation as specialist nurses in clinical knowledge development. The model is developed for the specialist nursing education, but it is general and could be applicable to various education programmes.
Collapse
Affiliation(s)
- J Öhlén
- Institute of Health and Care Sciences, Sahlgrenska Academy at University of Gothenburg, Box 457, 40530 Gothenburg, Sweden.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Vig S, Dowsett C, Berg L, Caravaggi C, Rome P, Birke-Sorensen H, Bruhin A, Chariker M, Depoorter M, Dunn R, Duteille F, Ferreira F, Francos Martínez J, Grudzien G, Hudson D, Ichioka S, Ingemansson R, Jeffery S, Krug E, Lee C, Malmsjo M, Runkel N, Martin R, Smith J. Evidence-based recommendations for the use of negative pressure wound therapy in chronic wounds: Steps towards an international consensus. J Tissue Viability 2011; 20 Suppl 1:S1-18. [DOI: 10.1016/j.jtv.2011.07.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
39
|
Johansson SE, Rollman E, Chung AW, Center RJ, Hejdeman B, Stratov I, Hinkula J, Wahren B, Kärre K, Kent SJ, Berg L. NK cell function and antibodies mediating ADCC in HIV-1-infected viremic and controller patients. Viral Immunol 2011; 24:359-68. [PMID: 21958370 DOI: 10.1089/vim.2011.0025] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Natural killer (NK) cells have been suggested to play a protective role in HIV disease progression. One potent effector mechanism of NK cells is antibody-dependent cellular cytotoxicity (ADCC) mediated by antiviral antibodies binding to the FcγRIIIa receptor (CD16) on NK cells. We investigated NK cell-mediated ADCC function and the presence of ADCC antibodies in plasma from 20 HIV-1-infected patients and 10 healthy donors. The HIV-positive patients were divided into two groups: six who controlled viremia for at least 8 y without treatment (controllers), and 14 who were persistently viremic and not currently on treatment. Plasma from both patient groups induced NK cell IFN-γ expression and degranulation in response to HIV-1 envelope (Env) gp140-protein-coated cells. Patient antibodies mediating ADCC were largely directed towards the Env V3 loop, as identified by a gp140 protein lacking the V3 loop. Interestingly, in two controllers ADCC-mediating antibodies were more broadly directed to other parts of Env. A high viral load in patients correlated with decreased ADCC-mediated cytolysis of gp140-protein-coated target cells. NK cells from both infected patients and healthy donors degranulated efficiently in the presence of antibody-coated HIV-1-infected Jurkat cells. In conclusion, the character of ADCC-mediating antibodies differed in some controllers compared to viremic patients. NK cell ADCC activity is not compromised in HIV-infected patients.
Collapse
Affiliation(s)
- Susanne E Johansson
- Department of Microbiology, Tumor and Cell Biology and Strategic Research Center IRIS, Karolinska Institutet, Stockholm, Sweden
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Birke-Sorensen H, Malmsjo M, Rome P, Hudson D, Krug E, Berg L, Bruhin A, Caravaggi C, Chariker M, Depoorter M, Dowsett C, Dunn R, Duteille F, Ferreira F, Martínez JF, Grudzien G, Ichioka S, Ingemansson R, Jeffery S, Lee C, Vig S, Runkel N, Martin R, Smith J. Evidence-based recommendations for negative pressure wound therapy: Treatment variables (pressure levels, wound filler and contact layer) – Steps towards an international consensus. J Plast Reconstr Aesthet Surg 2011; 64 Suppl:S1-16. [DOI: 10.1016/j.bjps.2011.06.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 05/22/2011] [Accepted: 06/03/2011] [Indexed: 01/14/2023]
|
41
|
Götherström C, Lundqvist A, Duprez IR, Childs R, Berg L, le Blanc K. Fetal and adult multipotent mesenchymal stromal cells are killed by different pathways. Cytotherapy 2011; 13:269-78. [DOI: 10.3109/14653249.2010.523077] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
42
|
Johansson SE, Brauner H, Hinkula J, Wahren B, Berg L, Johansson MH. Accumulation and activation of natural killer cells in local intraperitoneal HIV-1/MuLV infection results in early control of virus infected cells. Cell Immunol 2011; 272:71-8. [DOI: 10.1016/j.cellimm.2011.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 08/19/2011] [Accepted: 09/09/2011] [Indexed: 11/16/2022]
|
43
|
|
44
|
Delgado M, Berg L, Montoy J, Ginde A, Camargo C. 449: Availability of Routine HIV Screening In U.S. Emergency Departments. Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.492] [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: 10/19/2022]
|
45
|
Gertow J, Berglund S, Okas M, Uzunel M, Berg L, Kärre K, Mattsson J, Uhlin M. Characterization of long-term mixed donor-donor chimerism after double cord blood transplantation. Clin Exp Immunol 2010; 162:146-55. [PMID: 20731674 DOI: 10.1111/j.1365-2249.2010.04212.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Double cord blood transplantation (DCBT) with two matched or partially matched cord blood units has been implemented successfully to circumvent the limitations of graft cell dose associated with single CBT. After DCBT, sustained haematopoiesis is derived almost exclusively from only one of the donated units. None the less, we previously observed two of six evaluable DCBT patients still having mixed donor-donor chimerism at 28 and 45 months post-transplantation, respectively. In the present study we utilize flow cytometry techniques to perform the first thorough analysis of phenotype and functionality of cord blood units in patients with mixed donor-donor chimerism. Our results suggest that the two stable cord blood units are different phenotypically and functionally: one unit shows more naive T cells, lower T cell cytokine production and higher frequencies of natural killer cells, the other shows higher frequencies of well-differentiated and functional lymphocytes. Additionally, in comparison with control patients having a single prevailing cord blood unit, the patients with donor-donor chimerism exhibit less overall T cell cytokine production and a smaller fraction of memory T cells. Furthermore, our results indicate that human leucocyte antigen-C match of donor units may partly explain the development of a donor-donor mixed chimerism.
Collapse
Affiliation(s)
- J Gertow
- Centre for Allogeneic Stem Cell Transplantation and Division of Clinical Immunology, Karolinska Institutet, Stockholm, Sweden.
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Lindh E, Rosmaraki E, Berg L, Brauner H, Karlsson MCI, Peltonen L, Höglund P, Winqvist O. AIRE deficiency leads to impaired iNKT cell development. J Autoimmun 2010; 34:66-72. [PMID: 19651488 DOI: 10.1016/j.jaut.2009.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2009] [Revised: 07/10/2009] [Accepted: 07/12/2009] [Indexed: 12/31/2022]
Abstract
Autoimmune Polyendocrine Syndrome type I (APS I) is caused by mutations in the Autoimmune Regulator gene (AIRE), and results in the immunological destruction of endocrine organs. Herein we have characterized the CD1d-restricted invariant NKT cells (iNKT) and NK cells in APS I patients and Aire(-/-) mice, two cell populations known to play a role in the regulation of autoimmune disease. We show that the frequency of circulating iNKT cells is reduced in APS I patients compared to healthy controls. In accordance with this, iNKT cells are significantly reduced in the thymus and peripheral organs of Aire(-/-) mice. Bone marrow transfer from wild type donors into lethally irradiated Aire(-/-) recipients led to a decreased iNKT cell population in the liver, suggesting an impaired development of iNKT cells in the absence of Aire expression in radio-resistant cells. In contrast to the iNKT cells, both conventional NK cells and thymus-derived NK cells were unaffected by Aire deficiency and differentiated normally in Aire(-/-) mice. Our results show that expression of Aire in radio-resistant cells is important for the development of iNKT cells, whereas NK cell development and function does not depend on Aire.
Collapse
MESH Headings
- Animals
- Bone Marrow Transplantation
- Cells, Cultured
- Cytotoxicity, Immunologic
- Female
- Humans
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Killer Cells, Natural/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mutation/genetics
- Natural Killer T-Cells/immunology
- Natural Killer T-Cells/metabolism
- Natural Killer T-Cells/pathology
- Polyendocrinopathies, Autoimmune/genetics
- Polyendocrinopathies, Autoimmune/immunology
- Polyendocrinopathies, Autoimmune/metabolism
- Radiation Chimera
- Radiation Tolerance/genetics
- Thymus Gland/pathology
- Transcription Factors/genetics
- Transcription Factors/immunology
- Transcription Factors/metabolism
- AIRE Protein
Collapse
Affiliation(s)
- Emma Lindh
- Karolinska Institutet, Department of Medicine, Clinical Allergy Research Unit, Stockholm, Sweden
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Bachmayer N, Sohlberg E, Sundström Y, Rafik Hamad R, Berg L, Bremme K, Sverremark-Ekström E. ERRATUM: Women with Pre-Eclampsia have an Altered NKG2A and NKG2C Receptor Expression on Peripheral Blood Natural Killer Cells. Am J Reprod Immunol 2009. [DOI: 10.1111/j.1600-0897.2009.00752.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
48
|
Bachmayer N, Sohlberg E, Sundström Y, Hamad RR, Berg L, Bremme K, Sverremark-Ekström E. ORIGINAL ARTICLE: Women with Pre-Eclampsia Have an Altered NKG2A and NKG2C Receptor Expression on Peripheral Blood Natural Killer Cells. Am J Reprod Immunol 2009; 62:147-57. [DOI: 10.1111/j.1600-0897.2009.00724.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
|
49
|
Saghafian-Hedengren S, Sundström Y, Sohlberg E, Nilsson C, Linde A, Troye-Blomberg M, Berg L, Sverremark-Ekström E. Herpesvirus seropositivity in childhood associates with decreased monocyte-induced NK cell IFN-gamma production. J Immunol 2009; 182:2511-7. [PMID: 19201907 DOI: 10.4049/jimmunol.0801699] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
EBV infection is inversely associated with IgE sensitization in children, and this association is further enhanced by CMV coinfection. In mice, herpesvirus latency causes systemic innate activation and protection from bacterial coinfection, implying the importance of herpesviruses in skewing immune responses during latent infection. Early control of viral infections depends on IFN-gamma release by NK cells, which generally requires the presence of accessory cells. We investigated IFN-gamma production by NK cells in PBMCs from children seropositive (SP) for EBV alone, for both EBV and CMV, or seronegative for both viruses. The ability of classical (CD14(++)CD16(-)) and proinflammatory (CD14(+)CD16(+)) monocytes to induce autologous NK cell IFN-gamma was studied by coculture experiments with enriched CD3(-)CD56(+) cells. Transwell experiments were used to evaluate how monocytes interact with NK cells to induce IFN-gamma synthesis. SP children had a significantly reduced proportion of IFN-gamma(+) NK cells and cognate intracellular IFN-gamma levels, which was more pronounced in CMV-coinfected subjects. Also, resting PBMCs of SP children displayed lower proportions of proinflammatory monocytes. IFN-gamma production by NK cells was dependent on interactions with monocytes, with the proinflammatory subset inducing the highest IFN-gamma. Finally, SP children had markedly lower levels of plasma IFN-gamma, concurrent with in vitro findings. Herpesvirus infections could be one contributing factor for maturation toward balanced Th1-Th2 responses. Our data indicate that early infection by herpesviruses may affect NK cell and monocyte interactions and thereby also influence the development of allergies.
Collapse
|
50
|
Abstract
Herpes simplex virus (HSV) type 1 infection may cause orofacial infections in humans. The virus resides in a latent form in neural ganglia and occasionally reactivates and infects epithelial cells. Natural killer (NK) cells have been implicated in immune control of herpes virus infections, possibly by downmodulating major histocompatibility complex (MHC) class I and by other, as yet unidentified, mechanisms. Upon HSV-1 infection of cell lines, surface levels of NKG2D ligands MHC class I related proteins (MIC) A and UL16 binding protein 2 were downmodulated due to late viral gene product(s). As also MHC class I levels were reduced by HSV-1, NK cell recognition of HeLa cells was not affected by infection. Total cellular MICA contents remained unchanged, suggesting masking, internalization or intracellular retention of MICA as possible mechanisms of viral downregualtion of MICA surface levels. Furthermore, NK cells from patients with active HSV-1 infection had a tendency towards increased expression level of the activating receptor NKG2D. These data support a role for NKG2D-MICA interactions in immune responses to HSV-1 reactivation.
Collapse
Affiliation(s)
- D Schepis
- Department of Microbiology, Tumor and Cell Biology and Strategic Research Center IRIS, Karolinska Institutet, Stockholm, Sweden.
| | | | | | | | | | | |
Collapse
|