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Jørgensen S, Brodersen T, Vesterager Pedersen OB, Westergaard N. Distribution of the cytochrome P450 *alleles for CYP2C9 and CYP2C19 in a cohort of the Danish Blood Donor Study determined by using the Illumina Infinium Global Screening Array. Basic Clin Pharmacol Toxicol 2024; 135:217-222. [PMID: 38813766 DOI: 10.1111/bcpt.14040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 04/19/2024] [Accepted: 05/19/2024] [Indexed: 05/31/2024]
Affiliation(s)
- Steffen Jørgensen
- Centre for Engineering and Science, Department of Biomedical Laboratory Science, University College Absalon, Naestved, Denmark
| | - Thorsten Brodersen
- Department of Clinical Immunology, Zealand University Hospital Køge, Køge, Denmark
| | - Ole Birger Vesterager Pedersen
- Department of Clinical Immunology, Zealand University Hospital Køge, Køge, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Bellis KL, Dissanayake OM, Harrison EM, Aggarwal D. Community methicillin-resistant Staphylococcus aureus outbreaks in areas of low prevalence. Clin Microbiol Infect 2024:S1198-743X(24)00286-6. [PMID: 38897351 DOI: 10.1016/j.cmi.2024.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/21/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND Community-acquired (CA), community-onset methicillin-resistant Staphylococcus aureus (CO-MRSA) infection presents a significant public health challenge, even where MRSA rates are historically lower. Despite successes in reducing hospital-onset MRSA, CO-MRSA rates are increasing globally, with a need to understand this trend, and the potential risk factors for re-emergence. OBJECTIVES This review aims to explore the characteristics of outbreaks of community-acquired community-onset methicillin-resistant Staphylococcus aureus in low-prevalence areas, to understand the factors involved in its rise, and to translate this knowledge into public health policy and further research needs. SOURCES PubMed, EMBASE, and Google Scholar were searched using combinations of the terms 'transmission', 'acquisition', 'community-acquired', 'MRSA', 'CA-MRSA', 'low prevalence', 'genomic', 'outbreak', 'colonisation', and 'carriage'. Wherever evidence was limited, additional articles were sought specifically, via PubMed searches. Papers where materials were not available in English were excluded. CONTENT Challenges in defining low-prevalence areas and the significance of exposure to various risk factors for community acquisition, such as healthcare settings, travel, livestock, and environmental factors, are discussed. The importance of genomic surveillance in identifying outbreak strains and understanding the transmission dynamics is highlighted, along with the need for robust public health policies and control measures. IMPLICATIONS The findings emphasise the complexity of CO-MRSA transmission and the necessity of a multifaceted approach in low-prevalence areas. This includes integrated and systematic surveillance of hospital-onset-, CO-, and livestock-associated MRSA, as has been effective in some Northern European countries. The evolution of CO-MRSA underscores the need for global collaboration, routine genomic surveillance, and comprehensive antimicrobial stewardship to mitigate the rise of CO-MRSA and address the broader challenge of antimicrobial resistance. These efforts are crucial for maintaining low MRSA prevalence and managing the increasing burden of CO-MRSA in both low and higher prevalence regions.
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Affiliation(s)
- Katherine L Bellis
- Department of Medicine, University of Cambridge, Hills Rd, Cambridge, UK; Wellcome Sanger Institute, Parasites and Microbes, Hinxton, Saffron Walden, UK
| | - Oshani M Dissanayake
- University College London, Global Business School for Health, Gower St, London, UK
| | - Ewan M Harrison
- Department of Medicine, University of Cambridge, Hills Rd, Cambridge, UK; Wellcome Sanger Institute, Parasites and Microbes, Hinxton, Saffron Walden, UK
| | - Dinesh Aggarwal
- Department of Medicine, University of Cambridge, Hills Rd, Cambridge, UK; Wellcome Sanger Institute, Parasites and Microbes, Hinxton, Saffron Walden, UK; Department of Medicine, Cambridge University Hospital NHS Foundation Trust, Hills Rd, Cambridge, UK.
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Lewin A, McGowan E, Ou-Yang J, Boateng LA, Dinardo CL, Mandal S, Almozain N, Ribeiro J, Sasongko SL. The future of blood services amid a tight balance between the supply and demand of blood products: Perspectives from the ISBT Young Professional Council. Vox Sang 2024; 119:505-513. [PMID: 38272856 DOI: 10.1111/vox.13590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/07/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024]
Abstract
BACKGROUND AND OBJECTIVES Blood services manage the increasingly tight balance between the supply and demand of blood products, and their role in health research is expanding. This review explores the themes that may define the future of blood banking. MATERIALS AND METHODS We reviewed the PubMed database for articles on emerging/new blood-derived products and the utilization of blood donors in health research. RESULTS In high-income countries (HICs), blood services may consider offering these products: whole blood, cold-stored platelets, synthetic blood components, convalescent plasma, lyophilized plasma and cryopreserved/lyophilized platelets. Many low- and middle-income countries (LMICs) aim to establish a pool of volunteer, non-remunerated blood donors and wean themselves off family replacement donors; and many HICs are relaxing the deferral criteria targeting racial and sexual minorities. Blood services in HICs could achieve plasma self-sufficiency by building plasma-dedicated centres, in collaboration with the private sector. Lastly, blood services should expand their involvement in health research by establishing donor cohorts, conducting serosurveys, studying non-infectious diseases and participating in clinical trials. CONCLUSION This article provides a vision of the future for blood services. The introduction of some of these changes will be slower in LMICs, where addressing key operational challenges will likely be prioritized.
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Affiliation(s)
- Antoine Lewin
- Medical Affairs and Innovation, Héma-Québec, Montreal, Quebec, Canada
- Medicine faculty and health science, Sherbrooke University, Sherbrooke, Quebec, Canada
| | - Eunike McGowan
- Research and Development, Australian Red Cross Lifeblood, Brisbane, Australia
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | | | - Lilian Antwi Boateng
- Department of Medical Diagnostics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Immunohaematology laboratory, University Health Services, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Saikat Mandal
- Medical Oncology, Hull York Medical School, University of Hull, Hull, UK
| | - Nour Almozain
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
- Department of Pathology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Jannison Ribeiro
- Centro de Hematologia e Hemoterapia do Ceará - Hemoce, Fortaleza, Brazil
- Instituto Pró-Hemo Saúde - IPH, Fortaleza, Brazil
| | - Syeldy Langi Sasongko
- Department of Public and Occupational Health, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands
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Kjerulff B, Dowsett J, Jacobsen RL, Gladov J, Larsen MH, Lundgaard AT, Banasik K, Westergaard D, Mikkelsen S, Dinh KM, Hindhede L, Kaspersen KA, Schwinn M, Juul A, Poulsen B, Lindegaard B, Pedersen CB, Sabel CE, Bundgaard H, Nielsen HS, Møller JA, Boldsen JK, Burgdorf KS, Kessing LV, Handgaard LJ, Thørner LW, Didriksen M, Nyegaard M, Grarup N, Ødum N, Johansson PI, Jennum P, Frikke-Schmidt R, Berger SS, Brunak S, Jacobsen S, Hansen TF, Lundquist TK, Hansen T, Sørensen TL, Sigsgaard T, Nielsen KR, Bruun MT, Hjalgrim H, Ullum H, Rostgaard K, Sørensen E, Pedersen OB, Ostrowski SR, Erikstrup C. Lifestyle and demographic associations with 47 inflammatory and vascular stress biomarkers in 9876 blood donors. COMMUNICATIONS MEDICINE 2024; 4:50. [PMID: 38493237 PMCID: PMC10944541 DOI: 10.1038/s43856-024-00474-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 03/04/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND The emerging use of biomarkers in research and tailored care introduces a need for information about the association between biomarkers and basic demographics and lifestyle factors revealing expectable concentrations in healthy individuals while considering general demographic differences. METHODS A selection of 47 biomarkers, including markers of inflammation and vascular stress, were measured in plasma samples from 9876 Danish Blood Donor Study participants. Using regression models, we examined the association between biomarkers and sex, age, Body Mass Index (BMI), and smoking. RESULTS Here we show that concentrations of inflammation and vascular stress biomarkers generally increase with higher age, BMI, and smoking. Sex-specific effects are observed for multiple biomarkers. CONCLUSION This study provides comprehensive information on concentrations of 47 plasma biomarkers in healthy individuals. The study emphasizes that knowledge about biomarker concentrations in healthy individuals is critical for improved understanding of disease pathology and for tailored care and decision support tools.
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Affiliation(s)
- Bertram Kjerulff
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark.
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark.
| | - Joseph Dowsett
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Rikke Louise Jacobsen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Josephine Gladov
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark
| | - Margit Hørup Larsen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Agnete Troen Lundgaard
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Karina Banasik
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - David Westergaard
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Susan Mikkelsen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Khoa Manh Dinh
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Lotte Hindhede
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Kathrine Agergård Kaspersen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark
| | - Michael Schwinn
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Anders Juul
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Betina Poulsen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Birgitte Lindegaard
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Pulmonary and Infectious Diseases, Copenhagen University Hospital-North Zealand, Hillerød, Denmark
| | - Carsten Bøcker Pedersen
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark
- National Centre for Register-based Research, Aarhus BSS, Aarhus University, Aarhus, Denmark
| | - Clive Eric Sabel
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark
- Department of Public Health, Aarhus University, DK-8000, Aarhus, Denmark
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, PL4 8AA, UK
| | - Henning Bundgaard
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Henriette Svarre Nielsen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Recurrent Pregnancy Loss Unit, Capital Region, Copenhagen University Hospitals, Hvidovre and Rigshospitalet, Copenhagen, Denmark
- Department of Obstetrics and Gynecology, Copenhagen University Hospital, Hvidovre, Denmark
| | - Janne Amstrup Møller
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jens Kjærgaard Boldsen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark
| | - Kristoffer Sølvsten Burgdorf
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lars Vedel Kessing
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Copenhagen Affective Disorder Research Center (CADIC), Psychiatric Center Copenhagen, Copenhagen, Denmark
| | - Linda Jenny Handgaard
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Lise Wegner Thørner
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Maria Didriksen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Mette Nyegaard
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Niels Grarup
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niels Ødum
- LEO Foundation Skin Immunology Research Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Pär I Johansson
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Obstetrics and Gynecology, Copenhagen University Hospital, Hvidovre, Denmark
| | - Poul Jennum
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Danish Center for Sleep Medicine, Department of Clinical Neurophysiology, Rigshospitalet, Copenhagen, Denmark
| | - Ruth Frikke-Schmidt
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Biochemistry, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Sanne Schou Berger
- Centre for Diagnostics, DTU Health Technology, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Søren Brunak
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Jacobsen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Copenhagen Lupus and Vasculitis Clinic, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen, Denmark
| | - Thomas Folkmann Hansen
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Danish Headache Center and Danish Multiple Sclerosis Center, Copenhagen University Hospital, Rigshospitalet Glostrup, Glostrup, Denmark
| | - Tine Kirkeskov Lundquist
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Torben Hansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Torben Lykke Sørensen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Clinical Eye Research Division, Department of Ophthalmology, Zealand University, Hospital, Roskilde, Denmark
| | - Torben Sigsgaard
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark
- Department of Public Health, Aarhus University, DK-8000, Aarhus, Denmark
| | - Kaspar René Nielsen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - Mie Topholm Bruun
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - Henrik Hjalgrim
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
- Danish Cancer Society Research Center, Danish Cancer Society, Copenhagen, Denmark
- Department of Hematology, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Klaus Rostgaard
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
- Danish Cancer Society Research Center, Danish Cancer Society, Copenhagen, Denmark
| | - Erik Sørensen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Ole Birger Pedersen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Immunology, Zealand University Hospital, Køge, Denmark
| | - Sisse Rye Ostrowski
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- BERTHA Big Data Centre for Environment and Health, Aarhus University, Aarhus, Denmark
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Bastakoti S, Pesonen M, Ajayi C, Julin K, Corander J, Johannessen M, Hanssen AM. Co-culturing with Streptococcus anginosus alters Staphylococcus aureus transcriptome when exposed to tonsillar cells. Front Cell Infect Microbiol 2024; 14:1326730. [PMID: 38333035 PMCID: PMC10850355 DOI: 10.3389/fcimb.2024.1326730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/04/2024] [Indexed: 02/10/2024] Open
Abstract
Introduction Improved understanding of Staphylococcus aureus throat colonization in the presence of other co-existing microbes is important for mapping S. aureus adaptation to the human throat, and recurrence of infection. Here, we explore the responses triggered by the encounter between two common throat bacteria, S. aureus and Streptococcus anginosus, to identify genes in S. aureus that are important for colonization in the presence of human tonsillar epithelial cells and S. anginosus, and further compare this transcriptome with the genes expressed in S. aureus as only bacterium. Methods We performed an in vitro co-culture experiment followed by RNA sequencing to identify interaction-induced transcriptional alterations and differentially expressed genes (DEGs), followed by gene enrichment analysis. Results and discussion A total of 332 and 279 significantly differentially expressed genes with p-value < 0.05 and log2 FoldChange (log2FC) ≥ |2| were identified in S. aureus after 1 h and 3 h co-culturing, respectively. Alterations in expression of various S. aureus survival factors were observed when co-cultured with S. anginosus and tonsillar cells. The serine-aspartate repeat-containing protein D (sdrD) involved in adhesion, was for example highly upregulated in S. aureus during co-culturing with S. anginosus compared to S. aureus grown in the absence of S. anginosus, especially at 3 h. Several virulence genes encoding secreted proteins were also highly upregulated only when S. aureus was co-cultured with S. anginosus and tonsillar cells, and iron does not appear to be a limiting factor in this environment. These findings may be useful for the development of interventions against S. aureus throat colonization and could be further investigated to decipher the roles of the identified genes in the host immune response in context of a throat commensal landscape.
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Affiliation(s)
- Srijana Bastakoti
- Department of Medical Biology, Research group for Host-Microbe Interaction (HMI), UiT – The Arctic University of Norway, Tromsø, Norway
| | - Maiju Pesonen
- Oslo Centre of Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway
| | - Clement Ajayi
- Department of Medical Biology, Research group for Host-Microbe Interaction (HMI), UiT – The Arctic University of Norway, Tromsø, Norway
| | - Kjersti Julin
- Department of Medical Biology, Research group for Host-Microbe Interaction (HMI), UiT – The Arctic University of Norway, Tromsø, Norway
| | - Jukka Corander
- Department of Biostatistics, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
- Parasites and Microbes, Wellcome Sanger Institute, Cambridgeshire, United Kingdom
- Helsinki Institute of Information Technology, Department of Mathematics and Statistics, University of Helsinki, Helsinki, Finland
| | - Mona Johannessen
- Department of Medical Biology, Research group for Host-Microbe Interaction (HMI), UiT – The Arctic University of Norway, Tromsø, Norway
| | - Anne-Merethe Hanssen
- Department of Medical Biology, Research group for Host-Microbe Interaction (HMI), UiT – The Arctic University of Norway, Tromsø, Norway
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Mellergaard M, Skovbakke SL, Jepsen SD, Panagiotopoulou N, Hansen ABR, Tian W, Lund A, Høgh RI, Møller SH, Guérillot R, Hayes AS, Erikstrup LT, Andresen L, Peleg AY, Larsen AR, Stinear TP, Handberg A, Erikstrup C, Howden BP, Goletz S, Frees D, Skov S. Clinical Staphylococcus aureus inhibits human T-cell activity through interaction with the PD-1 receptor. mBio 2023; 14:e0134923. [PMID: 37796131 PMCID: PMC10653905 DOI: 10.1128/mbio.01349-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/08/2023] [Indexed: 10/06/2023] Open
Abstract
IMPORTANCE Therapies that target and aid the host immune defense to repel cancer cells or invading pathogens are rapidly emerging. Antibiotic resistance is among the largest threats to human health globally. Staphylococcus aureus (S. aureus) is the most common bacterial infection, and it poses a challenge to the healthcare system due to its significant ability to develop resistance toward current available therapies. In long-term infections, S. aureus further adapt to avoid clearance by the host immune defense. In this study, we discover a new interaction that allows S. aureus to avoid elimination by the immune system, which likely supports its persistence in the host. Moreover, we find that blocking the specific receptor (PD-1) using antibodies significantly relieves the S. aureus-imposed inhibition. Our findings suggest that therapeutically targeting PD-1 is a possible future strategy for treating certain antibiotic-resistant staphylococcal infections.
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Affiliation(s)
- Maiken Mellergaard
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sarah Line Skovbakke
- Biotherapeutic Glycoengineering and Immunology, DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Stine Dam Jepsen
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nafsika Panagiotopoulou
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Amalie Bøge Rud Hansen
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Weihua Tian
- Biotherapeutic Glycoengineering and Immunology, DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Astrid Lund
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Rikke Illum Høgh
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sofie Hedlund Møller
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Romain Guérillot
- Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Ashleigh S. Hayes
- Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | | | - Lars Andresen
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anton Y. Peleg
- Department of Microbiology, Monash University, Melbourne, Victoria, Australia
- Department of Microbiology, Infection Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
- Centre to Impact Antimicrobial Resistance, Monash University, Melbourne, Victoria, Australia
| | - Anders Rhod Larsen
- Statens Serum Institute, Microbiology and Infection Control, Copenhagen, Denmark
| | - Timothy P. Stinear
- Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Aase Handberg
- Department of Clinical Biochemistry, Aalborg University Hospital, North Denmark Region, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Benjamin P. Howden
- Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Steffen Goletz
- Biotherapeutic Glycoengineering and Immunology, DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Dorte Frees
- Food Safety and Zoonosis, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Skov
- Department of Veterinary and Animal Sciences, Laboratory of immunology, Section for Preclinical Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Bastakoti S, Ajayi C, Julin K, Johannessen M, Hanssen AM. Exploring differentially expressed genes of Staphylococcus aureus exposed to human tonsillar cells using RNA sequencing. BMC Microbiol 2023; 23:185. [PMID: 37438716 PMCID: PMC10337072 DOI: 10.1186/s12866-023-02919-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/28/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND The nose and the throat are the most predominant colonizing sites of Staphylococcus aureus, and colonization is a risk factor for infection. Nasal colonization is well described; however, we have limited knowledge about S. aureus throat colonization. The main objective of this study was to explore differentially expressed genes (DEGs) in S. aureus throat isolate TR145 exposed to human tonsil epithelial cells (HTEpiC) by using RNA sequencing (RNA-seq) and pathway analysis. DEGs in S. aureus at 1 or 3 hours (h) interaction with its host were explored. RESULTS S. aureus was co-cultured in absence and presence of tonsillar cells at 1 or 3 h. Over the 3 h time frame, the bacteria multiplied, but still caused only minor cytotoxicity. Upon exposure to tonsillar cell line, S. aureus changed its transcriptomic profile. A total of 508 DEGs were identified including unique (1 h, 160 DEGs and 3 h, 78 DEGs) and commonly shared genes (1 and 3 h, 270 DEGs). Among the DEGs, were genes encoding proteins involved in adhesion and immune evasion, as well as iron acquisition and transport. Reverse transcription qPCR was done on selected genes, and the results correlated with the RNA-seq data. CONCLUSION We have shown the suitability of using HTEpiC as an in vitro model for investigating key determinants in S. aureus during co-incubation with host cells. Several DEGs were unique after 1 or 3 h exposure to host cells, while others were commonly expressed at both time points. As their expression is induced upon meeting with the host, they might be explored further for future targets for intervention to prevent either colonization or infection in the throat.
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Affiliation(s)
- Srijana Bastakoti
- Department of Medical Biology, Host-Microbe Interaction (HMI) research group, UiT - The Arctic University of Norway, Tromsø, Norway.
| | - Clement Ajayi
- Department of Medical Biology, Host-Microbe Interaction (HMI) research group, UiT - The Arctic University of Norway, Tromsø, Norway
- Center for Research and Education, University Hospital of North Norway (UNN), Tromsø, Norway
| | - Kjersti Julin
- Department of Medical Biology, Host-Microbe Interaction (HMI) research group, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Mona Johannessen
- Department of Medical Biology, Host-Microbe Interaction (HMI) research group, UiT - The Arctic University of Norway, Tromsø, Norway
- Center for Research and Education, University Hospital of North Norway (UNN), Tromsø, Norway
| | - Anne-Merethe Hanssen
- Department of Medical Biology, Host-Microbe Interaction (HMI) research group, UiT - The Arctic University of Norway, Tromsø, Norway.
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8
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Lewin A, Osiowy C, Erikstrup C, Custer B, Renaud C, Tiberghien P, Russell A, Lieshout-Krikke R, O'Brien SF. Research partnerships between blood services and public health authorities: An international, cross-sectional survey. Vox Sang 2022; 117:1368-1374. [PMID: 36366797 DOI: 10.1111/vox.13374] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND AND OBJECTIVES The COVID-19 pandemic has brought to the fore how blood services can partner with public health (PH) authorities to inform decisions. Yet the scope of partnerships between blood services and PH authorities is inadequately documented. We explored how blood services partner with PH authorities outside the scope of COVID-19. MATERIALS AND METHODS On 19 January 2022, survey was sent to employees of blood services located throughout the world. Survey questions mainly pertained to partnerships with PH authorities, including how blood specimens are used and collected. RESULTS Twenty-seven recipients-4 (14.8%) in Africa, 3 (11.1%) in Asia, 9 (33.3%) in Europe, 6 (22.2%) in North America, 2 (7.4%) in Oceania and 3 (11.1%) in South America-completed the survey. Fifteen recipients (55.6%) indicated their blood service was directly or indirectly supervised by PH authorities. Twenty-four recipients (88.9%) indicated currently using or planning to use blood donor data or samples for PH research or pathogen surveillance. A substantial proportion of respondents reported using samples or results from non-routine tests for the surveillance of non-transfusion-transmitted infectious disease pathogens (n = 13 [48.1%]); samples or results of non-routine tests for PH research unrelated to pathogens (n = 10 [37.0%]); donor data for PH research unrelated to pathogens (n = 12 [44.4%]) and donor data for PH research unrelated to transfusion safety (n = 11 [40.7%]). Fourteen (51.9%) had established (or planned to establish) longitudinal cohorts and 19 (70.4%) biobanks. CONCLUSION The majority of responding blood services were already involved in or planned to be involved in PH research or pathogen surveillance.
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Affiliation(s)
- Antoine Lewin
- Héma-Québec, Medical Affairs and Innovation, Montreal, Canada
| | - Carla Osiowy
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Brian Custer
- Vitalant Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California, San Francisco, California, USA
| | | | - Pierre Tiberghien
- Établissement Français du Sang, La Plaine Saint Denis, France.,UMR RIGHT 1098, Inserm, Etablissement Français du Sang, University of Franche-Comté, Besançon, France
| | - Alton Russell
- School of Population and Global Health, McGill University, Montreal, Quebec, Canada
| | | | - Sheila F O'Brien
- Epidemiology & Surveillance, Canadian Blood Services, Ottawa, Ontario, Canada
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9
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Kjerulff B, Kaspersen KA, Dinh KM, Boldsen J, Mikkelsen S, Erikstrup LT, Sørensen E, Nielsen KR, Bruun MT, Hjalgrim H, Pedersen OB, Thørner LW, Ullum H, Ostrowski SR, Rostgaard K, Pedersen CB, Sigsgaard T, Erikstrup C. Smoking is associated with infection risk in healthy blood donors. Clin Microbiol Infect 2022; 29:506-514. [PMID: 36404421 DOI: 10.1016/j.cmi.2022.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/10/2022] [Accepted: 10/16/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVES There is a gap in knowledge about the effects of smoking on overall infection risk in otherwise healthy populations, possibly leading to underestimation of the dangers of smoking. The present study aimed to examine the association of smoking with the risk of infections in a large cohort of healthy blood donors. METHODS This cohort study used questionnaire and health register data from 127 831 Danish blood donors. Multivariable Cox proportional hazards analysis was applied to estimate the association of current smoking with the risk of all-cause infection defined as hospital-based treatment for infection or filled prescriptions of antimicrobials stratified for age and adjusted for relevant confounders. RESULTS Among 18 272 current smokers, 12 272 filled an antimicrobial prescription and 2035 received hospital-based treatment for infections. Among 101 974 non-smokers, 65 117 filled a prescription and 8501 received hospital-based treatment for infections. Smokers had a higher risk of all-cause infection than non-smokers (hazard ratio estimates were 1.27 in males and 1.33 in females for hospital-based treatment and 1.11 in males and up to 1.20 in females for filled prescriptions). Smoking was most strongly associated with an increased incidence of respiratory tract infection, abscesses, skin infection, and prescriptions for these ailments (hazard ratio up to 2.29). Furthermore, smokers' risk of filled prescriptions of broad-spectrum penicillin was increased (hazard ratio up to 1.96). CONCLUSIONS Current smoking was strongly associated with the risk of hospital-based treatment of infection and filled prescriptions of antimicrobials in a large cohort of healthy individuals. These findings warrant an increased focus on infectious disease risk among smokers.
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10
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Erikstrup C, Sørensen E, Nielsen KR, Bruun MT, Petersen MS, Rostgaard K, Thørner LW, Larsen M, Mikkelsen S, Dinh KM, Schwinn M, Rigas AS, Didriksen M, Dowsett J, von Stemann JH, Brodersen T, Paulsen IW, Hindhede L, Sækmose SG, Kaspersen KA, Boldsen JK, Kjerulff B, Werge T, Brunak S, Banasik K, Hansen TF, Ullum H, Hjalgrim H, Ostrowski SR, Pedersen OB. Cohort Profile: The Danish Blood Donor Study. Int J Epidemiol 2022:6747973. [PMID: 36194120 DOI: 10.1093/ije/dyac194] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/27/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Erik Sørensen
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Kaspar R Nielsen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - Mie T Bruun
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - Mikkel S Petersen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Klaus Rostgaard
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.,Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Lise W Thørner
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Margit Larsen
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Susan Mikkelsen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Khoa M Dinh
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Michael Schwinn
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Andreas S Rigas
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Maria Didriksen
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Joseph Dowsett
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jakob H von Stemann
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Thorsten Brodersen
- Department of Clinical Immunology, Zealand University Hospital, Køge, Denmark
| | - Isabella W Paulsen
- Department of Clinical Immunology, Zealand University Hospital, Køge, Denmark
| | - Lotte Hindhede
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Susanne G Sækmose
- Department of Clinical Immunology, Zealand University Hospital, Køge, Denmark
| | - Kathrine A Kaspersen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark.,Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
| | - Jens K Boldsen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark.,Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
| | - Bertram Kjerulff
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark.,Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
| | - Thomas Werge
- Institute of Biological Psychiatry, Mental Health Services, Copenhagen University Hospital, Copenhagen, Denmark.,LF Center for GeoGenetics, GLOBE Institute, University of Copenhagen, Copenhagen, Denmark.,iPSYCH Initiative, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Brunak
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Karina Banasik
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas F Hansen
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Danish Headache Center, Department of Neurology, Copenhagen University Hospital, Glostrup, Denmark
| | | | - Henrik Hjalgrim
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.,Danish Cancer Society Research Center, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Haematology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Sisse R Ostrowski
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ole B Pedersen
- Department of Clinical Immunology, Zealand University Hospital, Køge, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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11
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Meyer TC, Michalik S, Holtfreter S, Weiss S, Friedrich N, Völzke H, Kocher T, Kohler C, Schmidt F, Bröker BM, Völker U. A Comprehensive View on the Human Antibody Repertoire Against Staphylococcus aureus Antigens in the General Population. Front Immunol 2021; 12:651619. [PMID: 33777051 PMCID: PMC7987813 DOI: 10.3389/fimmu.2021.651619] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 02/16/2021] [Indexed: 12/20/2022] Open
Abstract
Our goal was to provide a comprehensive overview of the antibody response to Staphylococcus aureus antigens in the general population as a basis for defining disease-specific profiles and diagnostic signatures. We tested the specific IgG and IgA responses to 79 staphylococcal antigens in 996 individuals from the population-based Study of Health in Pomerania. Using a dilution-based multiplex suspension array, we extended the dynamic range of specific antibody detection to seven orders of magnitude, allowing the precise quantification of high and low abundant antibody specificities in the same sample. The observed IgG and IgA antibody responses were highly heterogeneous with differences between individuals as well as between bacterial antigens that spanned several orders of magnitude. Some antigens elicited significantly more IgG than IgA and vice versa. We confirmed a strong influence of colonization on the antibody response and quantified the influence of sex, smoking, age, body mass index, and serum glucose on anti-staphylococcal IgG and IgA. However, all host parameters tested explain only a small part of the extensive variability in individual response to the different antigens of S. aureus.
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Affiliation(s)
- Tanja C Meyer
- Department Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Stephan Michalik
- Department Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Silva Holtfreter
- Department of Immunology, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Stefan Weiss
- Department Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Nele Friedrich
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Henry Völzke
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Thomas Kocher
- Unit of Periodontology, University Medicine Greifswald, Greifswald, Germany
| | - Christian Kohler
- Friedrich Loeffler Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
| | - Frank Schmidt
- Department Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany.,Proteomics Core, Weill Cornell Medicine-Qatar, Qatar Foundation-Education City, Doha, Qatar
| | - Barbara M Bröker
- Department of Immunology, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Uwe Völker
- Department Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
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12
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Leone M, Lakbar I, Baldovini A, Geeraerts T. Ventilator-associated pneumonia due to Staphylococcus aureus in brain-injured patients: Beyond risk factors. Anaesth Crit Care Pain Med 2021; 40:100825. [PMID: 33771329 DOI: 10.1016/j.accpm.2021.100825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Marc Leone
- Service d'anesthésie et de réanimation, hôpital Nord, Aix Marseille université, Assistance publique-Hôpitaux de Marseille, Marseille, France; MEPHI, IHU Méditerranée Infection, Aix Marseille université, Marseille, France.
| | - Ines Lakbar
- MEPHI, IHU Méditerranée Infection, Aix Marseille université, Marseille, France; Anaesthesiology and critical care department, university hospital of Toulouse, university Toulouse 3-Paul Sabatier, Toulouse, France
| | - Alice Baldovini
- Service d'anesthésie et de réanimation, hôpital Nord, Aix Marseille université, Assistance publique-Hôpitaux de Marseille, Marseille, France
| | - Thomas Geeraerts
- Anaesthesiology and critical care department, university hospital of Toulouse, university Toulouse 3-Paul Sabatier, Toulouse, France
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13
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Del Rosal T, Méndez-Echevarría A, Garcia-Vera C, Escosa-Garcia L, Agud M, Chaves F, Román F, Gutierrez-Fernandez J, Ruiz de Gopegui E, Ruiz-Carrascoso G, Ruiz-Gallego MDC, Bernet A, Quevedo SM, Fernández-Verdugo AM, Díez-Sebastian J, Calvo C. Staphylococcus aureus Nasal Colonization in Spanish Children. The COSACO Nationwide Surveillance Study. Infect Drug Resist 2020; 13:4643-4651. [PMID: 33380814 PMCID: PMC7767716 DOI: 10.2147/idr.s282880] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/19/2020] [Indexed: 12/12/2022] Open
Abstract
Objective To assess the prevalence and risk factors for S. aureus and methicillin-resistant S. aureus (MRSA) nasal colonization in Spanish children. Methods Cross-sectional study of patients <14 years from primary care centers all over Spain. Clinical data and nasal aspirates were collected from March to July 2018. Results A total of 1876 patients were enrolled. Prevalence of S. aureus and MRSA colonization were 33% (95% CI 30.9–35.1) and 1.44% (95% CI 0.9–2), respectively. Thirty-three percent of the children (633/1876) presented chronic conditions, mainly atopic dermatitis, asthma and/or allergy (524/633). Factors associated with S. aureus colonization were age ≥5 years (OR 1.10, 95% CI 1.07–1.12), male sex (OR 1.43, 95% CI 1.17–1.76), urban setting (OR 1.46, 95% CI 1.08–1.97) and the presence of asthma, atopic dermatitis or allergies (OR 1.25; 95% CI: 1.093–1.43). Rural residence was the only factor associated with MRSA colonization (OR 3.62, 95% CI 1.57–8.36). MRSA was more frequently resistant than methicillin-susceptible S. aureus to ciprofloxacin [41.2% vs 2.6%; p<0.0001], clindamycin [26% vs 16.9%; p=0.39], and mupirocin [14.3% vs 6.7%; p=0.18]. None of the MRSA strains was resistant to tetracycline, fosfomycin, vancomycin or daptomycin. Conclusions The main risk factors for S. aureus colonization in Spanish children are being above five years of age, male gender, atopic dermatitis, asthma or allergy, and residence in urban areas. MRSA colonization is low, but higher than in other European countries and is associated with rural settings.
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Affiliation(s)
- Teresa Del Rosal
- Pediatric Infectious and Tropical Diseases Department, Hospital Universitario La Paz, Madrid, Spain.,Translational Research Network in Pediatric Infectious Diseases (RITIP), Institute for Health Research IdiPAZ, Madrid, Spain
| | - Ana Méndez-Echevarría
- Pediatric Infectious and Tropical Diseases Department, Hospital Universitario La Paz, Madrid, Spain.,Translational Research Network in Pediatric Infectious Diseases (RITIP), Institute for Health Research IdiPAZ, Madrid, Spain
| | - Cesar Garcia-Vera
- "José Ramón Muñoz Fernández" Health Care Center, Aragón Health Service, Zaragoza, Spain
| | - Luis Escosa-Garcia
- Pediatric Infectious and Tropical Diseases Department, Hospital Universitario La Paz, Madrid, Spain.,Translational Research Network in Pediatric Infectious Diseases (RITIP), Institute for Health Research IdiPAZ, Madrid, Spain
| | - Martin Agud
- Pediatric Infectious and Tropical Diseases Department, Hospital Universitario La Paz, Madrid, Spain
| | - Fernando Chaves
- Department of Clinical Microbiology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Federico Román
- Laboratory of Nosocomial Infections, Department of Bacteriology, CNM, Instituto de Salud Carlos III, Madrid, Spain
| | | | - Enrique Ruiz de Gopegui
- Department of Clinical Microbiology, Hospital Universitari Son Espases. Servicio de Microbiología, Palma de Mallorca, Spain
| | | | | | - Albert Bernet
- Section of Microbiology, Arnau de Vilanova University Hospital, Lleida, Spain
| | - Sara Maria Quevedo
- Department of Microbiology, Hospital Universitario Severo Ochoa, Leganes, Spain
| | | | | | - Cristina Calvo
- Pediatric Infectious and Tropical Diseases Department, Hospital Universitario La Paz, Madrid, Spain.,Translational Research Network in Pediatric Infectious Diseases (RITIP), Institute for Health Research IdiPAZ, Madrid, Spain
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14
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Nørreslet LB, Edslev SM, Andersen PS, Plum F, Holt J, Kjerulf A, Ebbehøj NE, Clausen ML, Flachs EM, Agner T. Colonization with Staphylococcus aureus in patients with hand eczema: Prevalence and association with severity, atopic dermatitis, subtype and nasal colonization. Contact Dermatitis 2020; 83:442-449. [PMID: 32720317 DOI: 10.1111/cod.13679] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND While Staphylococcus aureus (S. aureus) colonization has been thoroughly studied in atopic dermatitis (AD), where S. aureus is related to flares and considered a trigger factor, S. aureus colonization in hand eczema (HE) has only been sparsely studied. OBJECTIVES To examine the 1-week prevalence of S. aureus colonization in HE patients, and its association with severity, HE subtype, AD, and nasal S. aureus colonization compared with healthy controls. METHODS In a case-control study of 50 adult HE patients and 50 healthy controls, bacterial swabs from lesional skin (patients only), non-lesional skin (dorsal hand), and the nasal cavity were sampled for culturing of S. aureus on days 1, 3, 5 and 8. Participants were characterized by demographics, AD, HE subtype, filaggrin gene mutation status, and HE severity. RESULTS Twenty-seven HE patients (54%) were colonized with S. aureus on the hand compared to one control (2%) (P < .01). Nasal S. aureus colonization was found in 72% of patients and 22% of controls (P < .01). For patients, S. aureus colonization on the hands was associated with an atopic HE subtype and HE severity (P = .01 and P < .01, respectively). CONCLUSIONS Both hand and nasal S. aureus colonization were highly prevalent among HE-patients and may have an impact on the persistence of HE.
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Affiliation(s)
- Line B Nørreslet
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Sofie M Edslev
- Department of Bacteria, Parasites, and Fungi, Statens Serum Institute, Copenhagen, Denmark
| | - Paal S Andersen
- Department of Bacteria, Parasites, and Fungi, Statens Serum Institute, Copenhagen, Denmark
| | - Frederik Plum
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jette Holt
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institute, Copenhagen, Denmark
| | - Anne Kjerulf
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institute, Copenhagen, Denmark
| | - Niels E Ebbehøj
- Department of Occupational and Environmental Medicine, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Maja-Lisa Clausen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Esben M Flachs
- Department of Occupational and Environmental Medicine, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Tove Agner
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
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15
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Roe C, Stegger M, Lilje B, Johannesen TB, Ng KL, Sieber RN, Driebe E, Engelthaler DM, Andersen PS. Genomic analyses of Staphylococcus aureus clonal complex 45 isolates does not distinguish nasal carriage from bacteraemia. Microb Genom 2020; 6:mgen000403. [PMID: 32667872 PMCID: PMC7641415 DOI: 10.1099/mgen.0.000403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 06/16/2020] [Indexed: 11/20/2022] Open
Abstract
Staphylococcus aureus is a colonizing opportunistic pathogen and a leading cause of bloodstream infection with high morbidity and mortality. S. aureus carriage frequency is reportedly between 20 and 40 % among healthy adults, with S. aureus colonization considered to be a risk factor for S. aureus bacteraemia. It is unknown whether a genetic component of the bacterium is associated with S. aureus bacteraemia in comparison to nasal carriage strains. Previous association studies primarily focusing on the clinical outcome of an S. aureus infection have produced conflicting results, often limited by study design challenged by sample collections and the clonal diversity of S. aureus. To date, no study has investigated whether genomic features separate nasal carriage isolates from S. aureus bacteraemia isolates within a single clonal lineage. Here we have investigated whether genomic features, including single-nucleotide polymorphisms (SNPs), genes, or kmers, distinguish S. aureus nasal carriage isolates from bacteraemia isolates that all belong to the same clonal lineage [clonal complex 45 (CC45)] using whole-genome sequencing (WGS) and a genome-wide association (GWA) approach. From CC45, 100 isolates (50 bacteraemia and 50 nasal carriage, geographically and temporally matched) from Denmark were whole-genome sequenced and subjected to GWA analyses involving gene copy number variation, SNPs, gene content, kmers and gene combinations, while correcting for lineage effects. No statistically significant association involving SNPs, specific genes, gene variants, gene copy number variation, or a combination of genes was identified that could distinguish bacteraemia isolates from nasal carriage isolates. The presented results suggest that all S. aureus nasal CC45 isolates carry the potential to cause invasive disease, as no core or accessory genome content or variations were statistically associated with invasiveness.
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Affiliation(s)
- Chandler Roe
- Translational Genomics Research Institute, Flagstaff, AZ, USA
- Northern Arizona University, Flagstaff, AZ, USA
| | - Marc Stegger
- Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Berit Lilje
- Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | | | - Kim Lee Ng
- Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Raphael N. Sieber
- Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | | | | | - Paal Skytt Andersen
- Translational Genomics Research Institute, Flagstaff, AZ, USA
- Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
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16
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Dinh KM, Erikstrup LT, Andersen RK, Andersen PS, Mikkelsen S, Kjerulff BD, Burgdorf KS, Hansen TF, Nielsen KR, Hjalgrim H, Jemec GB, Ullum H, Erikstrup C, Pedersen OB. Cross-sectional study identifies lower risk of Staphylococcus aureus nasal colonization in Danish blood donors with hidradenitis suppurativa symptoms. Br J Dermatol 2020; 183:387-389. [PMID: 32078163 DOI: 10.1111/bjd.18962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- K M Dinh
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - L T Erikstrup
- Department of Clinical Microbiology, Aarhus University Hospital, Aarhus, Denmark
| | - R K Andersen
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark
| | - P S Andersen
- Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark.,Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - S Mikkelsen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - B D Kjerulff
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - K S Burgdorf
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - T F Hansen
- Danish Headache Center, Rigshospitalet Glostrup, Glostrup, Denmark
| | - K R Nielsen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - H Hjalgrim
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.,Department of Hematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - G B Jemec
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark
| | - H Ullum
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - C Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - O B Pedersen
- Department of Clinical Immunology, Naestved Hospital, Naestved, Denmark
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