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Ruffles T, Basu K, Inglis SK, Bremner S, Rabe H, Memon A, Seddon P, Tavendale R, Palmer CNA, Mukhopadhyay S, Fidler K. Mannose-binding lectin genotype is associated with respiratory disease in young children: A multicenter cohort study. Pediatr Pulmonol 2022; 57:2824-2833. [PMID: 35949104 DOI: 10.1002/ppul.26109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/02/2022] [Accepted: 08/09/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND Mannose-binding lectin (MBL) is an important component of the innate immune system. Polymorphisms in the MBL2 gene and promoter region are directly associated with MBL-deficiency. We sought to determine the association between MBL genotype on the frequency of common childhood respiratory infections, respiratory symptoms, and atopic outcomes in early childhood. METHODS MBL2 gene variants were analyzed in newborns recruited to the GO-CHILD multicenter prospective cohort study. Follow-up for respiratory infection and atopy diagnoses and symptoms, healthcare utilization, and medication prescription were conducted by postal questionnaires at 12 and 24 months. RESULTS Genotyping and follow-up were completed in 1004 children. Genotypes associated with MBL-deficiency were associated with an increased risk of bronchiolitis (relative risk [RR] 1.95, 95% confidence interval [CI] 1.33-2.85) and pneumonia (RR 2.46, 95% CI 1.16-5.22). MBL-deficient genotypes were associated with an increased risk of wheeze with shortness of breath episodes (RR 1.22, 95% CI 1.04-1.43), emergency department attendance (RR 1.90 95% CI 1.13-3.19), and hospital admission (RR 2.01, 95% CI 1.04-3.89) for wheeze. MBL-deficient genotypes were associated with a reduced risk of developing atopic dermatitis (RR 0.72, 95% CI 0.53-0.98). CONCLUSION The positive association between MBL-deficient genotypes and bronchiolitis and pneumonia, as well as a severe wheeze phenotype in some young children, supports the hypothesis that MBL is an important component of innate immunity in the vulnerable period before the maturation of the adaptive immune system. Identification of disease-modifying genotypes may help target preventative strategies in high-risk infants.
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Affiliation(s)
- Tom Ruffles
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Brighton and Sussex Medical School, Brighton, UK
| | - Kaninika Basu
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Sarah K Inglis
- Tayside Clinical Trials Unit, University of Dundee, Dundee, UK
| | - Stephen Bremner
- Department of Primary Care and Public Health, Brighton and Sussex Medical School, Brighton, UK
| | - Heike Rabe
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Brighton and Sussex Medical School, Brighton, UK
| | - Anjum Memon
- Department of Primary Care and Public Health, Brighton and Sussex Medical School, Brighton, UK
| | - Paul Seddon
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Brighton and Sussex Medical School, Brighton, UK
| | - Roger Tavendale
- Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Colin N A Palmer
- Pat McPherson Centre for Pharmacogenetics and Pharmacogenomics, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Somnath Mukhopadhyay
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Brighton and Sussex Medical School, Brighton, UK
| | - Katy Fidler
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Brighton and Sussex Medical School, Brighton, UK
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Kim JS, Lee SY, Hahn HJ, Lee YB, Yu DS, Kim JW. Association of Single-Nucleotide Polymorphisms of the MBL2 with Atopic Dermatitis in Korean Patients. Ann Dermatol 2017; 29:571-577. [PMID: 28966513 PMCID: PMC5597650 DOI: 10.5021/ad.2017.29.5.571] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/13/2016] [Accepted: 01/09/2017] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Human mannose-binding lectin (MBL) is a serum lectin taking part in the innate immunity by opsonizing various microorganisms for phagocytosis. The MBL serum concentration is affected by several single-nucleotide polymorphisms (SNPs) in the promoter region of the MBL2 gene. OBJECTIVE The purpose of this study was to examine the relationship between MBL2 polymorphisms and atopic dermatitis (AD) susceptibility. METHODS To examine whether the MBL2 SNPs are related to AD susceptibility, we examined 237 patients with AD and 94 controls by polymerase chain reaction (PCR)-restriction fragment length polymorphism and PCR-sequence specific primer analyses of four polymorphic loci: two (H/L and X/Y) within the promoter region and the other two (P/Q and A/B) within exon 1. MBL concentrations in the blood were estimated by ELISA. RESULTS The prevalence of haplotype HYPB, leading to MBL deficiency, was significantly decreased in the AD patients compared to the controls (p=0.002), while the prevalence of haplotype HYPA was increased with a clear trend toward significance (p=0.056). The frequency of MBL2 LYPB/LXPA (odds ratio, 0.08; 95% confidence interval, 0.009~0.655; p=0.021) were significantly decreased in the AD patients. The blood log [total immunoglobulin E, IgE] levels of MBL2 HYPA/HYPA, HYPA/LYPA, HYPA/LYPB, HYPA/LYQA, and LYQA/LXPA haplotype pairs were significantly increased in the AD patients. CONCLUSION The frequency of MBL2 HYPB haplotype was significantly decreased in the AD patients compared to the controls. The frequency of LYPB/LXPA had a possibly protective effect on AD. Moreover, the MBL2 HYPA haplotype pairs, which were related to higher blood total IgE levels, were possibly associated with extrinsic AD.
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Affiliation(s)
- Jung Soo Kim
- Department of Dermatology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Soo Young Lee
- Department of Dermatology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Hyung Jin Hahn
- Department of Dermatology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Young Bok Lee
- Department of Dermatology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Dong Soo Yu
- Department of Dermatology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Jin Wou Kim
- Department of Dermatology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
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Tereshchenko SY, Kasparov EV, Smol'nikova MV, Kuvshinova EV. Mannose-binding lectin deficiency in respiratory diseases. ACTA ACUST UNITED AC 2017. [DOI: 10.18093/0869-0189-2016-26-6-748-752] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Mannosebinding lectin is a part of the innate immunity that, being the first barrier of the antiinfectious defense, acts in first minutes or hours after pathogen challenge. The review provides data about mechanisms of action of mannosebinding lectin and its particular pathogenic role in a wide range of respiratory diseases: bacterial pneumonia, viral respiratory tract infections, tuberculosis, cystic fibrosis, chronic obstructive pulmonary disease, and asthma in adults and children.
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Affiliation(s)
- S. Yu. Tereshchenko
- Federal Research Institute of Medical Problems of the North, Siberian Department of Russian Academy of Medical Science
| | - E. V. Kasparov
- Federal Research Institute of Medical Problems of the North, Siberian Department of Russian Academy of Medical Science
| | - M. V. Smol'nikova
- Federal Research Institute of Medical Problems of the North, Siberian Department of Russian Academy of Medical Science
| | - E. V. Kuvshinova
- Federal Research Institute of Medical Problems of the North, Siberian Department of Russian Academy of Medical Science
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Kim MA, Yoon MK, Kim SH, Park HS. Association of MBL With Work-Related Respiratory Symptoms in Bakery Workers. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2017; 9:85-91. [PMID: 27826966 PMCID: PMC5102840 DOI: 10.4168/aair.2017.9.1.85] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/01/2016] [Accepted: 09/02/2016] [Indexed: 01/04/2023]
Abstract
Baker's asthma is the most prevalent occupational asthma, and IgE-mediated response is known as a major pathogenesis. However, recent studies have suggested the involvement of innate immune response because wheat flour contains bacterial endotoxins or lipopolysaccharides. To further understand a role of innate immune response in the development of work-related respiratory symptoms (WRS) in bakery workers, we investigated mannose-binding lectin (MBL), one of the initiating components of the complement cascade in a single cohort of bakery workers. A total of 373 bakery workers completed a questionnaire regarding WRS. The bakery workers were divided into 2 groups according to previous history of allergic rhinitis (AR)/bronchial asthma (BA): those with history of AR/BA (group I) and those without (group II). We measured serum MBL levels by using enzyme-linked immunosorbant assay and genotyped 4 single nucleotide polymorphisms of the MBL2 gene (226G>A in exon 1, -554G>C, -431A>C, and -225G>C in the promoter) by using TaqMan assays. Fifty-nine subjects (15.5%) were previously diagnosed with AR/BA, and 64 subjects (16.8%) complained of WRS. No significant differences were found in serum MBL levels between groups I and II. However, in group II subjects, but not in group I subjects, the serum MBL levels were significantly higher in bakery workers with WRS than in those without. In addition, the serum MBL levels were significantly different according to genetic polymorphisms of the MBL2 gene and its haplotypes. In conclusion, serum MBL, affected by genetic polymorphisms, may be associated with WRS in bakery workers with no previous history of AR/BA.
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Affiliation(s)
- Mi Ae Kim
- Department of Pulmonary, Allergy, and Critical Care Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Moon Kyung Yoon
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Seung Hyun Kim
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Hae Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.,Department of Biomedical Sciences, Ajou University Graduate School, Suwon, Korea.
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Potlukova E, Freiberger T, Limanova Z, Jiskra J, Telicka Z, Bartakova J, Springer D, Vitkova H, Trendelenburg M. Association between low levels of Mannan-binding lectin and markers of autoimmune thyroid disease in pregnancy. PLoS One 2013; 8:e81755. [PMID: 24339961 PMCID: PMC3858249 DOI: 10.1371/journal.pone.0081755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/16/2013] [Indexed: 01/22/2023] Open
Abstract
Functional deficiency of mannan-binding lectin (MBL) has been associated with adverse pregnancy outcome. Adverse events during pregnancy have also been described in women with autoimmune thyroid diseases (AITD), and thyroid hormones have been shown to influence serum levels of MBL. Therefore, the aim of this study was to analyse the impact of MBL-deficiency on the outcome of pregnancy in relation to the presence of AITD. Almost one year after delivery, we assessed serum MBL levels and MBL2-genotypes in 212 women positively screened for AITD in pregnancy. In 103 of these women, we could also measure MBL levels in frozen serum samples from the 9-12th gestational week, obtaining 96 pairs of MBL values (pregnancy vs. follow-up). As controls, 80 sera of pregnant women screened negatively for AITD were used. MBL2-genotyping was performed using multiplex PCR. Women with thyroid dysfunction and/or thyroid peroxidase antibodies (TPOAb) had lower MBL levels during pregnancy than controls, (3275 vs. 5000 ng/ml, p<0.05). The lowest levels were found in women with elevated thyroid-stimulating hormone (TSH) levels in the absence of TPOAb (2207 ng/ml; p<0.01 as compared to controls). MBL2 genotype distribution did not differ between subgroups. At a median follow-up period of 17 months (range: 3–78 months) after delivery, median MBL level had decreased further to 1923 ng/ml (p<0.0001) without significant changes in TSH. In an explorative survey, functional MBL-deficiency was neither linked to a history of spontaneous abortion, nor other obstetric complications, severe infections throughout life/pregnancy or antibiotics use in pregnancy. In conclusion, hypothyroidism during pregnancy is associated with decreased MBL levels, and the levels decreased further after delivery.
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Affiliation(s)
- Eliska Potlukova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Tomas Freiberger
- Centre for Cardiovascular Surgery and Transplantation, Molecular Genetics Laboratory, Brno, Czech Republic, and Ceitec and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zdenka Limanova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jan Jiskra
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Zdenek Telicka
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jana Bartakova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Drahomira Springer
- Institute of Clinical Biochemistry and Laboratory Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Hana Vitkova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Marten Trendelenburg
- Laboratory of Clinical Immunology, Department of Biomedicine, University Hospital Basel, Switzerland
- * E-mail:
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Koponen P, He Q, Helminen M, Nuolivirta K, Korppi M. Association of MBL2 polymorphism with asthma after bronchiolitis in infancy. Pediatr Int 2012; 54:619-22. [PMID: 22512728 DOI: 10.1111/j.1442-200x.2012.03651.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Mannose-binding lectin (MBL) is a component of innate immunity and has been linked with the pathogenesis of asthma. The aim of the present study was to evaluate the association of MBL genotypes with preschool asthma and allergy in children with bronchiolitis in early infancy. METHODS In all, 205 infants were hospitalized for bronchiolitis at <6 months of age. Asthma and allergy were studied from a total of 166 children at 6.4 years (mean). A total of 141 (85%) frozen whole blood samples were available for MBL genotyping and MBL2 gene mutations were determined on pyrosequencing for detection of three single-nucleotide polymorphisms. RESULTS Ninety-five children (67.4%) had the wild-type MBL genotype A/A and 46 had A/O or O/O genotypes. Asthma was present in 16 children (11.3%) at 5-7 years of age. Nine children (19.6%) with non-AA genotype had asthma (vs 7.4% of those with genotype AA, P= 0.03). The result remained significant after adjustment for age, gender and atopy. There were no significant associations between MBL genotypes and asthma at any age before the study. Atopic dermatitis, allergic rhinitis or paternal and/or maternal asthma had no significant associations with MBL genotypes. CONCLUSIONS The variant non-A/A MBL genotype is associated with asthma after bronchiolitis in infancy, but not earlier than at 5-7 years of age.
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Affiliation(s)
- Petri Koponen
- Paediatric Research Centre, Tampere University and University Hospital, Tampere, Finland.
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Takahashi K. Mannose-binding lectin and the balance between immune protection and complication. Expert Rev Anti Infect Ther 2012; 9:1179-90. [PMID: 22114968 DOI: 10.1586/eri.11.136] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The innate immune system is evolutionarily ancient and biologically primitive. Historically, it was first identified as an element of the immune system that provides the first-line response to pathogens, and increasingly it is recognized for its central housekeeping role and its essential functions in tissue homeostasis, including coagulation and inflammation, among others. A pivotal link between the innate immune system and other functions is mannose-binding lectin (MBL), a pattern recognition molecule. Multiple studies have demonstrated that MBL deficiency increases susceptibility to infection, and the mechanisms associated with this susceptibility to infection include reduced opsonophagocytic killing and reduced activation of the lectin complement pathway. Results from our laboratory have demonstrated that MBL and MBL-associated serine protease (MASP)-1/3 together mediate coagulation factor-like activities, including thrombin-like activity. MBL and/or MASP-1/3-deficient hosts demonstrate in vivo evidence that MBL and MASP-1/3 are involved with hemostasis following injury. Staphylococcus aureus-infected MBL null mice developed disseminated intravascular coagulation, which was associated with elevated blood IL-6 levels (but not TNF-α) and systemic inflammatory responses. Infected MBL null mice also develop liver injury. These findings suggest that MBL deficiency may manifest as disseminated intravascular coagulation and organ failure with infection. Beginning from these observations, this review focuses on the interaction of innate immunity and other homeostatic systems, the derangement of which may lead to complications in infection and other inflammatory states.
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Affiliation(s)
- Kazue Takahashi
- Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, GRJ1402, Boston, MA 02114, USA.
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Maintz L, Novak N. Modifications of the innate immune system in atopic dermatitis. J Innate Immun 2011; 3:131-41. [PMID: 21252494 DOI: 10.1159/000323963] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 01/03/2011] [Indexed: 01/26/2023] Open
Abstract
Atopic dermatitis (AD) is a frequent chronic inflammatory skin disease which is often complicated by recurrent microbial superinfections. Genetically based modifications which might have an impact on the innate immune system, such as impairment of the skin barrier, modifications of pattern recognition receptors, deficiency of antimicrobial peptides, antiviral natural killer cells and plasmacytoid dendritic cells, facilitate the entry of allergens and infectious microbes into the skin, where they encounter immunocompetent cells. The micromilieu in the skin of AD patients further potentiates dysfunctions of the innate immune system, leading to a vicious circle promoting the disease. This article provides an overview of modifications of the innate immune system in AD.
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Affiliation(s)
- Laura Maintz
- Department of Dermatology and Allergy, University of Bonn, Bonn, Germany
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Shakir EM, Grayson MH. The mannose-binding lectin gene in atopic dermatitis: lessons from genetics. Ann Allergy Asthma Immunol 2010; 105:1-2. [PMID: 20642196 DOI: 10.1016/j.anai.2010.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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