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DNA Repair Factor Poly(ADP-Ribose) Polymerase 1 Is a Proviral Factor in Hepatitis B Virus Covalently Closed Circular DNA Formation. J Virol 2022; 96:e0058522. [DOI: 10.1128/jvi.00585-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The biogenesis and eradication of HBV cccDNA have been a research priority in recent years. In this study, we identified the DNA repair factor PARP1 as a host factor required for the HBV
de novo
cccDNA formation.
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2
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Borilova Linhartova P, Danek Z, Deissova T, Hromcik F, Lipovy B, Szaraz D, Janos J, Fassmann A, Bartova J, Drizhal I, Izakovicova Holla L. Interleukin Gene Variability and Periodontal Bacteria in Patients with Generalized Aggressive Form of Periodontitis. Int J Mol Sci 2020; 21:ijms21134728. [PMID: 32630798 PMCID: PMC7370291 DOI: 10.3390/ijms21134728] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 02/07/2023] Open
Abstract
Host genetic predispositions to dysregulated immune response can influence the development of the aggressive form of periodontitis (AgP) through susceptibility to oral dysbiosis and subsequent host-microbe interaction. This case-control study aimed to perform a multilocus analysis of functional variants in selected interleukin (IL) genes in patients with the generalized form of AgP in a homogenous population. Twelve polymorphisms in IL-1 gene cluster, IL-6 and its receptor, IL-10, IL-17A, and IL-18 were determined in 91 AgP patients and 210 controls. Analysis of seven selected periodontal bacteria in subgingival sulci/pockets was performed with a commercial DNA-microarray kit in a subgroup of 76 individuals. The pilot in vitro study included stimulation of peripheral blood monocytes (PBMC) from 20 individuals with periodontal bacteria and measurement of IL-10 levels using the Luminex method. Only the unctional polymorphism IL-10 −1087 A/G (rs1800896) and specific IL-10 haplotypes were associated with the development of the disease (p < 0.05, Pcorr > 0.05). Four bacterial species occurred more frequently in AgP than in controls (p < 0.01, Pcorr < 0.05). Elevated IL-10 levels were found in AgP patients, carriers of IL-10 −1087GG genotype, and PBMCs stimulated by periodontal bacteria (p < 0.05, Pcorr > 0.05). We therefore conclude that a combination of genetic predisposition to the altered expression of IL-10 and the presence of specific periodontal bacteria may contribute to Th1/Th2 balance disruption and AgP development.
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Affiliation(s)
- Petra Borilova Linhartova
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Clinic of Maxillofacial Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic;
| | - Zdenek Danek
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Clinic of Maxillofacial Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic;
- Clinic of Maxillofacial Surgery, Faculty of Medicine, Masaryk University, Jihlavska 20, 62500 Brno, Czech Republic
- Correspondence: ; Tel.: +420-532-232-484
| | - Tereza Deissova
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
| | - Filip Hromcik
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
- Clinic of Stomatology, St. Anne’s University Hospital, Pekarska 664/53, 60200 Brno, Czech Republic;
| | - Bretislav Lipovy
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Department of Burns and Plastic Surgery, Faculty of Medicine, Masaryk University, Jihlavska 20, 62500 Brno, Czech Republic
- Department of Burns and Plastic Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic
| | - David Szaraz
- Clinic of Maxillofacial Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic;
- Clinic of Maxillofacial Surgery, Faculty of Medicine, Masaryk University, Jihlavska 20, 62500 Brno, Czech Republic
| | - Julius Janos
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
| | - Antonin Fassmann
- Clinic of Stomatology, St. Anne’s University Hospital, Pekarska 664/53, 60200 Brno, Czech Republic;
| | - Jirina Bartova
- Institute of Clinical and Experimental Dental Medicine, First Faculty of Medicine, Charles University, Karlovo nam. 554/32, 12808 Prague, Czech Republic;
- Institute of Clinical and Experimental Dental Medicine, General University Hospital, Karlovo nam. 554/32, 12808 Prague, Czech Republic
| | - Ivo Drizhal
- Department of Dentistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, 50003 Hradec Kralove, Czech Republic;
| | - Lydie Izakovicova Holla
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Clinic of Stomatology, St. Anne’s University Hospital, Pekarska 664/53, 60200 Brno, Czech Republic;
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Cardinale CJ, March ME, Lin X, Liu Y, Spruce LA, Bradfield JP, Wei Z, Seeholzer SH, Grant SFA, Hakonarson H. Regulation of Janus Kinase 2 by an Inflammatory Bowel Disease Causal Non-coding Single Nucleotide Polymorphism. J Crohns Colitis 2020; 14:646-653. [PMID: 32271392 DOI: 10.1093/ecco-jcc/jjz213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Among the >240 genetic loci described to date which confer susceptibility to inflammatory bowel disease, a small subset have been fine-mapped to an individual, non-coding single nucleotide polymorphism [SNP]. To illustrate a model mechanism by which a presumed-causal non-coding SNP can function, we analysed rs1887428, located in the promoter region of the Janus kinase 2 [JAK2] gene. METHODS We utilized comparative affinity purification-mass spectrometry, DNA-protein binding assays, CRISPR/Cas9 genome editing, transcriptome sequencing and methylome quantitative trait locus methods to characterize the role of this SNP. RESULTS We determined that the risk allele of rs1887428 is bound by the transcription factor [TF] RBPJ, while the protective allele is bound by the homeobox TF CUX1. While rs188748 only has a very modest influence on JAK2 expression, this effect was amplified downstream through the expression of pathway member STAT5B and epigenetic modification of the JAK2 locus. CONCLUSION Despite the absence of a consensus TF-binding motif or expression quantitative trait locus, we have used improved methods to characterize a putatively causal SNP to yield insight into inflammatory bowel disease mechanisms. PODCAST This article has an associated podcast which can be accessed at https://academic.oup.com/ecco-jcc/pages/podcast.
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Affiliation(s)
| | - Michael E March
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Xiang Lin
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Yichuan Liu
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Lynn A Spruce
- Proteomics Core Facility, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Zhi Wei
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Steven H Seeholzer
- Proteomics Core Facility, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Struan F A Grant
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Center for Spatial and Functional Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Hakon Hakonarson
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
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Khanmohammadi S, Shabani M, Tabary M, Rayzan E, Rezaei N. Lymphoma in the setting of autoimmune diseases: A review of association and mechanisms. Crit Rev Oncol Hematol 2020; 150:102945. [PMID: 32353704 DOI: 10.1016/j.critrevonc.2020.102945] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 03/11/2020] [Accepted: 03/24/2020] [Indexed: 12/11/2022] Open
Abstract
Autoimmune disorders are a spectrum of diseases caused by impaired self-tolerance of the immune system. Previous studies underscored the association between autoimmune disorders and lymphomas. However, only a few papers studied the exact mechanisms of this association. The effect of IL-2, IL-5, IL-6, IL-10 and TNF-α, contribution of NOTCH, FAS and MHC receptor families, the interplay of various immune cells, and the relation of immunosuppressive agents and development of autoimmune disorders are the proposed mechanisms for this association. Each individual autoimmune disorder associates with particular types of lymphomas and their common pathways are not necessarily similar to other pairs of autoimmune disorder-lymphomas. Thus, the lymphomas susceptibility in various autoimmune disorders could not be investigated through a single pathway. In this review, we demonstrate the association between each pair of autoimmune disorder-lymphoma and the underlying pathways. By clarifying these associations, follow-up plans could be made leading to early diagnosis of lymphomas.
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Affiliation(s)
- Shaghayegh Khanmohammadi
- International Hematology/Oncology of Pediatrics Experts (IHOPE), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsima Shabani
- International Hematology/Oncology of Pediatrics Experts (IHOPE), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Baltimore, MD, USA
| | - Mohammadreza Tabary
- International Hematology/Oncology of Pediatrics Experts (IHOPE), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Rayzan
- International Hematology/Oncology of Pediatrics Experts (IHOPE), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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Koliadenko V, Wilanowski T. Additional functions of selected proteins involved in DNA repair. Free Radic Biol Med 2020; 146:1-15. [PMID: 31639437 DOI: 10.1016/j.freeradbiomed.2019.10.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/16/2019] [Accepted: 10/16/2019] [Indexed: 12/30/2022]
Abstract
Protein moonlighting is a phenomenon in which a single polypeptide chain can perform a number of different unrelated functions. Here we present our analysis of moonlighting in the case of selected DNA repair proteins which include G:T mismatch-specific thymine DNA glycosylase (TDG), methyl-CpG-binding domain protein 4 (MBD4), apurinic/apyrimidinic endonuclease 1 (APE1), AlkB homologs, poly (ADP-ribose) polymerase 1 (PARP-1) and single-strand selective monofunctional uracil DNA glycosylase 1 (SMUG1). Most of their additional functions are not accidental and clear patterns are emerging. Participation in RNA metabolism is not surprising as bases occurring in RNA are the same or very similar to those in DNA. Other common additional function involves regulation of transcription. This is not unexpected as these proteins bind to specific DNA regions for DNA repair, hence they can also be recruited to regulate transcription. Participation in demethylation and replication of DNA appears logical as well. Some of the multifunctional DNA repair proteins play major roles in many diseases, including cancer. However, their moonlighting might prove a major difficulty in the development of new therapies because it will not be trivial to target a single protein function without affecting its other functions that are not related to the disease.
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Affiliation(s)
- Vlada Koliadenko
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Ilji Miecznikowa 1, 02-096, Warsaw, Poland
| | - Tomasz Wilanowski
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Ilji Miecznikowa 1, 02-096, Warsaw, Poland.
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Geginat J, Vasco M, Gerosa M, Tas SW, Pagani M, Grassi F, Flavell RA, Meroni P, Abrignani S. IL-10 producing regulatory and helper T-cells in systemic lupus erythematosus. Semin Immunol 2019; 44:101330. [PMID: 31735515 DOI: 10.1016/j.smim.2019.101330] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Systemic lupus erythematosus (SLE) is a highly heterogeneous autoimmune disease characterised by the production of pathogenic autoantibodies against nuclear self-antigens. The anti-inflammatory and tolerogenic cytokine Interleukin-10 appears to play a paradoxical pathogenic role in SLE and is therefore currently therapeutically targeted in clinical trials. It is generally assumed that the pathogenic effect of IL-10 in SLE is due to its growth and differentiation factor activity on autoreactive B-cells, but effects on other cells might also play a role. To date, a unique cellular source of pathogenic IL-10 in SLE has not been identified. In this review, we focus on the contribution of different CD4+T-cell subsets to IL-10 and autoantibody production in SLE. In particular, we discuss that IL-10 produced by different subsets of adaptive regulatory T-cells, follicular helper T-cells and extra-follicular B-helper T-cells is likely to have different effects on autoreactive B-cell responses. A better understanding of the role of IL-10 in B-cell responses and lupus would allow to identify the most promising therapies for individual SLE patients in the future.
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Affiliation(s)
- J Geginat
- INGM-National Institute of Molecular Genetics "Romeo ed Enrica Invernizzi", Milan, Italy.
| | - M Vasco
- INGM-National Institute of Molecular Genetics "Romeo ed Enrica Invernizzi", Milan, Italy
| | - M Gerosa
- DISCCO, Department of Clinical Science and Community Health, University of Milan, Italy; ASST Istituto G. Pini, Milan, Italy
| | - S W Tas
- Amsterdam UMC, University of Amsterdam, Department of Rheumatology & Clinical Immunology and Department of Experimental Immunology, Amsterdam Infection & Immunity Institute and Amsterdam Rheumatology & immunology Center (ARC), Academic Medical Center, Amsterdam, the Netherlands
| | - M Pagani
- INGM-National Institute of Molecular Genetics "Romeo ed Enrica Invernizzi", Milan, Italy; Amsterdam UMC, University of Amsterdam, Department of Rheumatology & Clinical Immunology and Department of Experimental Immunology, Amsterdam Infection & Immunity Institute and Amsterdam Rheumatology & immunology Center (ARC), Academic Medical Center, Amsterdam, the Netherlands; Department of Medical Biotechnology and Translational Medicine, University of Milan, Italy
| | - F Grassi
- INGM-National Institute of Molecular Genetics "Romeo ed Enrica Invernizzi", Milan, Italy; Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - R A Flavell
- Department of Immunobiology, and Howard Hughes Medical Institute, School of Medicine, Yale University, New Haven, USA
| | - Pl Meroni
- Istituto Auxologico Italiano, Milano, Italy
| | - S Abrignani
- INGM-National Institute of Molecular Genetics "Romeo ed Enrica Invernizzi", Milan, Italy; DISCCO, Department of Clinical Science and Community Health, University of Milan, Italy
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7
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Timasheva YR, Balkhiyarova ZR, Nasibullin TR, Avzaletdinova DS, Morugova TV, Mustafina OE, Prokopenko I. Multilocus associations of inflammatory genes with the risk of type 1 diabetes. Gene 2019; 707:1-8. [PMID: 31054364 DOI: 10.1016/j.gene.2019.04.085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/10/2019] [Accepted: 04/30/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Genome-wide association studies have captured a large proportion of genetic variation related to type 1 diabetes mellitus (T1D). However, most of these studies are performed in populations of European ancestry and therefore the disease risk estimations can be inaccurate when extrapolated to other world populations. METHODS We conducted a case-control study in 1866 individuals from the three major populations of the Republic of Bashkortostan (Russians, Tatars, and Bashkirs) in Russian Federation, using single-locus and multilocus approach to identify genetic predictors of T1D. RESULTS We found that LTA rs909253 and TNF rs1800629 polymorphisms were associated with T1D in the group of Tatars. Meta-analysis of the association study results in the three ethnic groups has confirmed the association between the T1D risk and LTA rs909253 genetic variant. LTA rs909253 and TNF rs1800629 loci were also featured in combinations most significantly associated with T1D. CONCLUSION Our findings suggest that LTA rs909253 and TNF rs1800629 polymorphisms are associated with the risk of T1D both independently and in combination with polymorphic markers in other inflammatory genes, and the analysis of multi-allelic combinations provides valuable insight in the study of polygenic traits.
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Affiliation(s)
- Yanina R Timasheva
- Institute of Biochemistry and Genetics of Ufa Federal Research Centre of Russian Academy of Sciences, 71 October Avenue, 450054 Ufa, Russian Federation; Section of Genomics of Common Disease, Department of Medicine, Imperial College London, Hammersmith Hospital Campus, Burlington Danes Building, Du Cane Road, London W12 0NN, United Kingdom; Bashkir State Medical University, 3 Lenin street, 450000 Ufa, Russian Federation.
| | - Zhanna R Balkhiyarova
- Section of Genomics of Common Disease, Department of Medicine, Imperial College London, Hammersmith Hospital Campus, Burlington Danes Building, Du Cane Road, London W12 0NN, United Kingdom; Bashkir State Medical University, 3 Lenin street, 450000 Ufa, Russian Federation
| | - Timur R Nasibullin
- Institute of Biochemistry and Genetics of Ufa Federal Research Centre of Russian Academy of Sciences, 71 October Avenue, 450054 Ufa, Russian Federation
| | | | - Tatiana V Morugova
- Bashkir State Medical University, 3 Lenin street, 450000 Ufa, Russian Federation
| | - Olga E Mustafina
- Institute of Biochemistry and Genetics of Ufa Federal Research Centre of Russian Academy of Sciences, 71 October Avenue, 450054 Ufa, Russian Federation
| | - Inga Prokopenko
- Section of Genomics of Common Disease, Department of Medicine, Imperial College London, Hammersmith Hospital Campus, Burlington Danes Building, Du Cane Road, London W12 0NN, United Kingdom
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Min Z, Pu X, Gu Z. Correlative analysis of the expression of IL-10 and Ki-67 in human cervical cancer and cervical intraepithelial neoplasias and human papillomavirus infection. Oncol Lett 2018; 16:7189-7194. [PMID: 30546456 PMCID: PMC6256322 DOI: 10.3892/ol.2018.9520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 09/18/2018] [Indexed: 12/14/2022] Open
Abstract
This study investigated the expression of IL-10 and Ki-67 in human cervical cancer and cervical intraepithelial neoplasia (CIN) and the correlation with human papillomavirus infection. A total of 110 patients with cervical lesions undergoing surgical treatment in Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine from 2016 to 2017 were selected. Those patients included 36 cases of cervical cancer and 74 cases of CIN. At the same time, 30 cases of chronic cervicitis were selected as the control group. RT-qPCR was used to detect the expression of IL-10 and Ki-67 in cervical tissue. PCR was used to detect HPV infection in cervical tissue. The expression levels of IL-10 and Ki-67 in the cervical cancer and CIN groups were higher than those in the control group. Moreover, the expression levels of IL-10 and Ki-67 in the cervical cancer and CIN II-III groups were higher than those in the CIN I group (P<0.05). In addition, the expression levels of IL-10 and Ki-67 in the cervical cancer group were significantly higher than those in the CIN II-III group. Furthermore, the expression levels of IL-10 and Ki-67 were positively correlated with HPV infection (r=0.783 or 0.712, P<0.05). Finally, the expression levels of IL-10 and Ki-67, and HPV infection in the cervical lesions studied were significantly different. Therefore, combined detection of IL-10, Ki-67 and HPV infection can improve the diagnosis of CIN and early cervical cancer.
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Affiliation(s)
- Zhihong Min
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200127, P.R. China
| | - Xiaowen Pu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200127, P.R. China
| | - Zhengrong Gu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200127, P.R. China
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Beyond genome-wide scan: Association of a cis-regulatory NCR3 variant with mild malaria in a population living in the Republic of Congo. PLoS One 2017; 12:e0187818. [PMID: 29121672 PMCID: PMC5679660 DOI: 10.1371/journal.pone.0187818] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/26/2017] [Indexed: 12/15/2022] Open
Abstract
Linkage studies have revealed a linkage of mild malaria to chromosome 6p21 that contains the NCR3 gene encoding a natural killer cell receptor, whereas NCR3-412G>C (rs2736191) located in its promoter region was found to be associated with malaria in Burkina Faso. Here we confirmed the association of rs2736191 with mild malaria in a Congolese cohort and investigated its potential cis-regulatory effect. Luciferase assay results indicated that rs2736191-G allele had a significantly increased promoter activity compared to rs2736191-C allele. Furthermore, EMSAs demonstrated an altered binding of two nuclear protein complexes to the rs2736191-C allele in comparison to rs2736191-G allele. Finally, after in silico identification of transcription factor candidates, pull-down western blot experiments confirmed that both STAT4 and RUNX3 bind the region encompassing rs2736191 with a higher affinity for the G allele. To our knowledge, this is the first report that explored the functional role of rs2736191. These results support the hypothesis that genetic variation within natural killer cell receptors alters malaria resistance in humans.
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Interleukin-10 −592C/A, but not −1082A/G promoter single nucleotide polymorphism, is associated with a decreased risk of colorectal cancer in an ethnic Kashmiri population: a case–control study. Eur J Cancer Prev 2017; 26:476-490. [DOI: 10.1097/cej.0000000000000370] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Yu Y, Chen Y, Wang FL, Sun J, Li HJ, Liu JM. Cytokines Interleukin 4 (IL-4) and Interleukin 10 (IL-10) Gene Polymorphisms as Potential Host Susceptibility Factors in Virus-Induced Encephalitis. Med Sci Monit 2017; 23:4541-4548. [PMID: 28935853 PMCID: PMC5683680 DOI: 10.12659/msm.904364] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background This study aimed to analyze and explore the relationship between the cytokines IL-4 and IL-10 in relation to gene polymorphism and their respective effects on the susceptibility to virus-induced encephalitis. Material/Methods From January 2012 to June 2013, 112 patients with virus-induced encephalitis (the case group and 109 healthy individuals (the control group) were recruited for the purposes of this study. The functional variations that IL-4 and IL-10 genes exhibit were detected through the use of a function analysis and selection tool for single-nucleotide polymorphisms (FASTSNP). The genotypes of IL-4 were rs2227283 and IL-4 rs2227288, and the genotypes of IL-10 were rs1800871 and IL-10 rs1800872. These genotypes were respectively assessed using direct sequencing. Results IL-4 rs2227283 and IL-10 rs1800871 have no correlation in with risk of virus-induced encephalitis (both P>0.05) GA and AA genotypes were related to IL-4 rs2227288 and GT, while TT and GT + TT genotypes were related to IL-10 rs1800872. These were highlighted as being risk factors in virus-induced encephalitis (all P<0.05). However, the duration of fever, white blood cell (WBC) count, C-reactive protein (CRP), neutrophils, and lymphocytes and monocytes of virus-induced encephalitis patients with IL-4 rs2227288 and IL-10 rs1800872 all displayed significant differences (all P<0.05). Frequencies of GAGT and CAGT haplotypes were evaluated and deemed to be of statistical significance and subsequently were highlighted as being risk factors in virus-induced encephalitis (all P<0.05). Conclusions IL-4 rs2227288 and IL-10 rs1800872 may contribute to an increased risk for virus-induced encephalitis. Through use of direct sequencing, we showed that genotypes of IL-4 rs2227288 and IL-10 rs1800872 may have particular host susceptibility to virus-induced encephalitis.
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Affiliation(s)
- Ying Yu
- Department of Infectious Diseases, Taizhou Municipal Hospital, Taizhou, Zhejiang, China (mainland)
| | - Ying Chen
- Department of Neurology, Taizhou Municipal Hospital, Taizhou, Zhejiang, China (mainland)
| | - Feng-Ling Wang
- Department of Infectious Diseases, Taizhou Municipal Hospital, Taizhou, Zhejiang, China (mainland)
| | - Jing Sun
- Department of Neurology, The Second Hospital Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Hai-Jun Li
- Department of Neurology, Taizhou Municipal Hospital, Taizhou, Zhejiang, China (mainland)
| | - Jia-Ming Liu
- Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
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Abdel Hay R, Rashed L, Hegazy R, Rashwan W, Samir N, Nour-Edin F. Association of interleukin (IL)18 and IL10 gene polymorphisms with oral lichen planus risk; a case-control study. J Dermatol Sci 2016; 83:244-7. [PMID: 27286581 DOI: 10.1016/j.jdermsci.2016.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/18/2016] [Accepted: 05/24/2016] [Indexed: 11/26/2022]
Affiliation(s)
- Rania Abdel Hay
- Dermatology Department, Faculty of Medicine, Cairo University, Egypt.
| | - Laila Rashed
- Clinical Biochemistry Department, Faculty of Medicine, Cairo University, Egypt
| | - Rehab Hegazy
- Dermatology Department, Faculty of Medicine, Cairo University, Egypt
| | - Weam Rashwan
- Oral Medicine, Diagnosis and Periodontology, Faculty of Oral and Dental Medicine, Cairo University, Egypt
| | - Nesrin Samir
- Dermatology Department, Faculty of Medicine, Cairo University, Egypt
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Armingohar Z, Jørgensen JJ, Kristoffersen AK, Schenck K, Dembic Z. Polymorphisms in the interleukin-10 gene and chronic periodontitis in patients with atherosclerotic and aortic aneurysmal vascular diseases. J Oral Microbiol 2015; 7:26051. [PMID: 25700628 PMCID: PMC4336353 DOI: 10.3402/jom.v7.26051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 12/22/2014] [Accepted: 01/13/2015] [Indexed: 12/18/2022] Open
Abstract
Background Chronic periodontitis (CP), atherosclerotic and aortic aneurysmal vascular diseases (VD) are chronic inflammatory conditions with multifactorial etiologies, including involvement of predisposing genetic factors. In a previous study, polymorphisms in the gene for the anti-inflammatory interleukin-1 receptor antagonist were associated with CP in patients with VD. Objective This study investigates whether polymorphisms in the gene for the anti-inflammatory interleukin-10 (IL10) could be related to CP in the same manner. Methods Seventy-two patients with VD of whom 35 had CP were genotyped for single nucleotide polymorphisms (SNPs) in the IL10 −592 (rs1800872), −819 (rs1800871), and −1,082 (rs1800896) gene by Taqman rtPCR method and by DNA sequencing. Results The C alleles and C/C genotypes of IL10 −592 and IL10 −819 frequencies were significantly higher, while the frequencies of the IL10 −592 (C/A) and IL10 −819 (C/T) heterozygote genotypes were significantly lower in the VD group with CP compared to those without CP. The IL10 haplotype ATA frequency (−1,082, −819, −592) showed a trend to a significant difference between the two groups indicating protection against CP. Conclusions Taken together, our findings suggest an independent association of genetic polymorphisms in the IL-10 gene locus with CP in patients with VD. Development of CP and the implications on vascular disease emphasize the importance of early detection and adequate treatment of periodontitis among these patients.
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Affiliation(s)
- Zahra Armingohar
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway;
| | | | - Anne K Kristoffersen
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Karl Schenck
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Zlatko Dembic
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
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Curtin N, Szabo C. Therapeutic applications of PARP inhibitors: anticancer therapy and beyond. Mol Aspects Med 2013; 34:1217-56. [PMID: 23370117 PMCID: PMC3657315 DOI: 10.1016/j.mam.2013.01.006] [Citation(s) in RCA: 279] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 01/12/2013] [Accepted: 01/18/2013] [Indexed: 12/21/2022]
Abstract
The aim of this article is to describe the current and potential clinical translation of pharmacological inhibitors of poly(ADP-ribose) polymerase (PARP) for the therapy of various diseases. The first section of the present review summarizes the available preclinical and clinical data with PARP inhibitors in various forms of cancer. In this context, the role of PARP in single-strand DNA break repair is relevant, leading to replication-associated lesions that cannot be repaired if homologous recombination repair (HRR) is defective, and the synthetic lethality of PARP inhibitors in HRR-defective cancer. HRR defects are classically associated with BRCA1 and 2 mutations associated with familial breast and ovarian cancer, but there may be many other causes of HRR defects. Thus, PARP inhibitors may be the drugs of choice for BRCA mutant breast and ovarian cancers, and extend beyond these tumors if appropriate biomarkers can be developed to identify HRR defects. Multiple lines of preclinical data demonstrate that PARP inhibition increases cytotoxicity and tumor growth delay in combination with temozolomide, topoisomerase inhibitors and ionizing radiation. Both single agent and combination clinical trials are underway. The final part of the first section of the present review summarizes the current status of the various PARP inhibitors that are in various stages of clinical development. The second section of the present review summarizes the role of PARP in selected non-oncologic indications. In a number of severe, acute diseases (such as stroke, neurotrauma, circulatory shock and acute myocardial infarction) the clinical translatability of PARP inhibition is supported by multiple lines of preclinical data, as well as observational data demonstrating PARP activation in human tissue samples. In these disease indications, PARP overactivation due to oxidative and nitrative stress drives cell necrosis and pro-inflammatory gene expression, which contributes to disease pathology. Accordingly, multiple lines of preclinical data indicate the efficacy of PARP inhibitors to preserve viable tissue and to down-regulate inflammatory responses. As the clinical trials with PARP inhibitors in various forms of cancer progress, it is hoped that a second line of clinical investigations, aimed at testing of PARP inhibitors for various non-oncologic indications, will be initiated, as well.
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Affiliation(s)
- Nicola Curtin
- Department of Experimental Cancer Therapy, Northern Institute for Cancer Research, Newcastle University, University of Newcastle Upon Tyne, UK
| | - Csaba Szabo
- Department of Anesthesiology, The University of Texas Medical Branch, Galveston, TX, USA
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15
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Ko HL, Ren EC. Functional Aspects of PARP1 in DNA Repair and Transcription. Biomolecules 2012; 2:524-48. [PMID: 24970148 PMCID: PMC4030864 DOI: 10.3390/biom2040524] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 10/24/2012] [Accepted: 10/31/2012] [Indexed: 01/08/2023] Open
Abstract
Poly (ADP-ribose) polymerase 1 (PARP1) is an ADP-ribosylating enzyme essential for initiating various forms of DNA repair. Inhibiting its enzyme activity with small molecules thus achieves synthetic lethality by preventing unwanted DNA repair in the treatment of cancers. Through enzyme-dependent chromatin remodeling and enzyme-independent motif recognition, PARP1 also plays important roles in regulating gene expression. Besides presenting current findings on how each process is individually controlled by PARP1, we shall discuss how transcription and DNA repair are so intricately linked that disturbance by PARP1 enzymatic inhibition, enzyme hyperactivation in diseases, and viral replication can favor one function while suppressing the other.
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Affiliation(s)
- Hui Ling Ko
- Singapore Immunology Network, A*STAR, 8A Biomedical Grove, #03-06 Immunos, Singapore 138648, Singapore.
| | - Ee Chee Ren
- Singapore Immunology Network, A*STAR, 8A Biomedical Grove, #03-06 Immunos, Singapore 138648, Singapore.
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16
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Interleukin-10 gene polymorphisms and chronic/aggressive periodontitis susceptibility: A meta-analysis based on 14 case-control studies. Cytokine 2012; 60:47-54. [DOI: 10.1016/j.cyto.2012.05.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Revised: 04/19/2012] [Accepted: 05/17/2012] [Indexed: 11/19/2022]
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17
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Iyer SS, Cheng G. Role of interleukin 10 transcriptional regulation in inflammation and autoimmune disease. Crit Rev Immunol 2012; 32:23-63. [PMID: 22428854 DOI: 10.1615/critrevimmunol.v32.i1.30] [Citation(s) in RCA: 893] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Interleukin 10 (IL-10) is a cytokine with potent anti-inflammatory properties that plays a central role in limiting host immune response to pathogens, thereby preventing damage to the host and maintaining normal tissue homeostasis. Dysregulation of IL-10 is associated with enhanced immunopathology in response to infection as well as increased risk for development of many autoimmune diseases. Thus a fundamental understanding of IL-10 gene expression is critical for our comprehension of disease progression and resolution of host inflammatory response. In this review, we discuss modes of regulation of IL-10 gene expression in immune effector cell types, including signal transduction, epigenetics, promoter architecture, and post-transcriptional regulation, and how aberrant regulation contributes to immunopathology and disease progression.
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18
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Decrease in circulating DNA, IL-10 and BAFF levels in newly-diagnosed SLE patients after corticosteroid and chloroquine treatment. Cell Immunol 2012; 276:196-203. [DOI: 10.1016/j.cellimm.2012.05.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 04/18/2012] [Accepted: 05/14/2012] [Indexed: 01/05/2023]
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Abstract
Accumulating epidemiological, clinical, and experimental evidence supports the conclusion of a critical role of epigenetic factors in immune programming. This understanding provides the basis for elucidating how the intricate interactions of the genome, epigenome, and transcriptome shape immune responses and maintain immune tolerance to self-antigens. Deciphering the precise contribution of epigenetic factors to autoimmunity, and in particular to lupus, has become an active research area. On one hand, it is well established that environmental factors have an impact on the epigenome and, therefore, on the transcriptional and translational machinery of specific cell types; on the other, the environment also plays an important role in the severity of lupus and other autoimmunity diseases. Determining how epigenetics "connects" the environment to cell biology and to autoreactivity will be key for advancing our understanding in this field and, possibly, for developing novel preventive strategies.
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Affiliation(s)
- Moncef Zouali
- Inserm UMR-S 606, University Diderot-Paris 7, Paris, France.
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20
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Zhang Y, Kim HJ, Yamamoto S, Kang X, Ma X. Regulation of interleukin-10 gene expression in macrophages engulfing apoptotic cells. J Interferon Cytokine Res 2010; 30:113-22. [PMID: 20187777 DOI: 10.1089/jir.2010.0004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Apoptosis and the rapid clearance of apoptotic cells (ACs) by professional or nonprofessional phagocytes are normal and coordinated processes that ensure controlled cell growth and stress response with nonpathological outcomes. Uptake of ACs by phagocytes is thought to suppress autoimmune responses through the release of anti-inflammatory cytokines such as interleukin-10 (IL-10), transforming growth factor-beta (TGF-beta), and inhibition of proinflammatory cytokines. The production of pro- and anti-inflammatory cytokines by phagocytes is highly regulated as part of an intrinsic mechanism to prevent inflammatory and autoimmune reactions in a physiological state. Production of IL-10 by phagocytes during clearance of ACs is critical to ensuring cellular homeostasis and suppression of autoimmunity. The molecular mechanism whereby IL-10 production is induced by ACs is only beginning to be understood. This review summarizes our recent work in this aspect of an essential physiological and homeostatic process.
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Affiliation(s)
- Yan Zhang
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, NY 10065-4805, USA
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21
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Kang X, Kim HJ, Ramirez M, Salameh S, Ma X. The septic shock-associated IL-10 -1082 A > G polymorphism mediates allele-specific transcription via poly(ADP-Ribose) polymerase 1 in macrophages engulfing apoptotic cells. THE JOURNAL OF IMMUNOLOGY 2010; 184:3718-24. [PMID: 20181890 DOI: 10.4049/jimmunol.0903613] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The biallelic IL-10 single nucleotide polymorphism at -1082 of the promoter region linked to individual variation in cytokine inducibility has been strongly implicated in several pathological conditions including the development of, and outcomes in, septic shock during pneumococcal infection, acute respiratory distress syndrome, and cardiac dysfunction. However, the molecular basis of the single nucleotide polymorphism-mediated variable IL-10 production levels has not been explored. In this study, we report that the -1082G > A alleles in the promoter region of the human IL-10 gene physically interact with a nuclear protein in an allele-specific manner that results in different levels of IL-10 transcription. This protein has been identified as poly(ADP-ribose) polymerase 1 (PARP-1). We show that PARP-1 acts as a transcription repressor, and its DNA-binding activity is strongly regulated in macrophages that engulf apoptotic cells but not stimulated with LPS. These findings unveil a novel role of PARP-1 in the regulation of IL-10 production in an allele-dependent way, which determines individual susceptibility to sepsis-induced inflammatory pathology and the immunological sequelae in a physiological process in which clearance of infection-induced apoptotic cells by professional phagocytes triggers the cytokine synthesis.
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Affiliation(s)
- Xiaoyan Kang
- Department of Microbiology and Immunology, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
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22
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Pereira AC, Brito-de-Souza VN, Cardoso CC, Dias-Baptista IMF, Parelli FPC, Venturini J, Villani-Moreno FR, Pacheco AG, Moraes MO. Genetic, epidemiological and biological analysis of interleukin-10 promoter single-nucleotide polymorphisms suggests a definitive role for −819C/T in leprosy susceptibility. Genes Immun 2008; 10:174-80. [DOI: 10.1038/gene.2008.97] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Sobkowiak A, Lianeri M, Wudarski M, Łacki JK, Jagodziński PP. Genetic variation in the interleukin-10 gene promoter in Polish patients with systemic lupus erythematosus. Rheumatol Int 2008; 29:921-5. [PMID: 19082598 DOI: 10.1007/s00296-008-0776-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Accepted: 11/09/2008] [Indexed: 01/23/2023]
Abstract
Identification of susceptibility genes in systemic lupus erythematosus (SLE) has recently become a topic of interest. The IL-10 promoter contains three single base-pair substitutions at -627C > A, -854C > T and -1117G > A. These single base-pair substitutions produce three different haplotypes, GCC, ACC and ATA, which affect IL-10 expression. We examined the distribution of -627C > A, -854C > T and -1117G > A IL-10 promoter polymorphisms in patients with SLE (n = 103, women only) and matched controls (n = 300). Despite the higher prevalence of the GCC/GCC, GCC/ATA and ATA/ATA genotypes in SLE patients than in controls, we observed that only GCC/GCC genotype frequency distribution was significant between these groups. We observed that women with the GCC/GCC genotype displayed an approximately twofold increased risk of SLE OR = 2.245 (95% CI = 1.354-3.721, P = 0.0022). We did not find any associations between various genotypes of IL-10 promoter haplotypes and clinical manifestations or autoantibody production in patients with SLE. Our observations indicate that the GCC/GCC promoter genotype may contribute to SLE incidence in Polish patients.
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Affiliation(s)
- Adam Sobkowiak
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 6 Swiecickiego St., 60-781, Poznan, Poland
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Claudino M, Trombone APF, Cardoso CR, Ferreira SB, Martins W, Assis GF, Santos CF, Trevilatto PC, Campanelli AP, Silva JS, Garlet GP. The broad effects of the functional IL-10 promoter-592 polymorphism: modulation of IL-10, TIMP-3, and OPG expression and their association with periodontal disease outcome. J Leukoc Biol 2008; 84:1565-73. [PMID: 18725394 DOI: 10.1189/jlb.0308184] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Periodontal diseases are infectious diseases, in which periodontopathogens trigger chronic inflammatory and immune responses that lead to tissue destruction. It occurs through the generation of metalloproteinases and the activation of bone resorption mechanisms. Anti-inflammatory cytokines such as IL-10 seem to attenuate periodontal tissue destruction through the induction of tissue inhibitors of metalloproteinases (TIMPs) and the inhibitor of osteoclastogenesis osteoprotegerin (OPG). A high individual variation in levels of IL-10 mRNA is verified in periodontitis patients, which is possibly determined by genetic polymorphisms. In this study, the IL-10 promoter -592C/A single nucleotide polymorphism (SNP), which is associated with a decrease in IL-10 production, was analyzed by RFLP in 116 chronic periodontitis (CP) patients and 173 control (C) subjects, and the IL-10, TIMPs, and OPG mRNA expression levels in diseased gingival tissues were determined by real-time-PCR. The IL-10-592 SNP CA (P=0.0012/OR=2.4/CI:1.4-4.1), AA (P=0.0458/OR=2.3/CI:1.1-4.9), and CA+AA (P=0.0006/OR=2.4/CI:1.4-3.4) genotypes and the allele A (P=0.0036/OR=1.7/CI:1.2-2.4) were found to be significantly more prevalent in the CP group when compared with control subjects. Both CA and AA genotypes were associated with lower levels of IL-10, TIMP-3, and OPG mRNA expression in diseased periodontal tissues and were also associated with disease severity as mean pocket depth. Taken together, the results presented here demonstrate that IL10-592 SNP is functional in CP, being associated with lower levels of IL-10 mRNA expression, which is supposed to consequently decrease the expression of the downstream genes TIMP-3 and OPG, and influence periodontal disease outcome.
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Affiliation(s)
- Marcela Claudino
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil
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25
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Hunninghake GM, Soto-Quiros ME, Lasky-Su J, Avila L, Ly NP, Liang C, Klanderman BJ, Raby BA, Gold DR, Weiss ST, Celedon JC. Dust mite exposure modifies the effect of functional IL10 polymorphisms on allergy and asthma exacerbations. J Allergy Clin Immunol 2008; 122:93-8, 98.e1-5. [PMID: 18440625 PMCID: PMC6124308 DOI: 10.1016/j.jaci.2008.03.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2008] [Revised: 03/17/2008] [Accepted: 03/20/2008] [Indexed: 12/15/2022]
Abstract
BACKGROUND The allergenicity of dust mite exposure might be dependent on variants in the gene for IL-10 (IL10). OBJECTIVES To evaluate whether dust mite exposure modifies the effect of single nucleotide polymorphisms (SNPs) in IL10 on allergy and asthma exacerbations. METHODS We genotyped 6 SNPs in IL10 in 417 Costa Rican children and 503 white children in the Childhood Asthma Management Program (CAMP) with asthma and their parents. We used family-based and population-based approaches to test for interactions between IL10 SNPs and dust mite allergen on serum IgE to dust mite in Costa Rica and on asthma exacerbations in Costa Rica and CAMP. RESULTS Dust mite exposure significantly modified the relation between 3 SNPs in IL10 (rs1800896, rs3024492, and rs3024496) and IgE to dust mite in Costa Rica (P for interaction, .0004 for SNP rs1800896). For each of these SNPs, homozygosity for the minor allele was associated with increased levels of IgE to dust mite with increased dust mite exposure. Homozygosity for the minor allele of each of the 3 SNPs was associated with increased risk of occurrence (approximately 3-fold to 39-fold increase) and frequency of asthma exacerbations among children exposed to > or = 10 microg/g dust mite allergen in Costa Rica. Similar results were obtained for 2 of these SNPs (rs1800896 and rs3024496) among white children in CAMP. CONCLUSION Our findings suggest that dust mite allergen levels modify the effect of IL10 SNPs on allergy and asthma exacerbations and may partly explain conflicting findings in this field.
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Affiliation(s)
- Gary M. Hunninghake
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
| | | | - Jessica Lasky-Su
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
- Department of Biostatistics, Harvard School of Public Health, Boston
| | - Lydiana Avila
- Division of Pediatric Pulmonology, Hospital Nacional de Ninos, San José
| | - Ngoc P. Ly
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
- Pediatric Pulmonary Division, Massachusetts General Hospital
| | | | - Barbara J. Klanderman
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
| | - Benjamin A. Raby
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
| | - Diane R. Gold
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
| | - Scott T. Weiss
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
| | - Juan C. Celedon
- Channing Laboratory, Brigham and Women’s Hospital, Boston
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston
- Harvard Medical School, Boston
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