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Kuč S, Wijnen P, Erckens R, Gijs M, Webers CAB, Bekers O, Drent M. Clinical Patterns of Sarcoidosis Patients with and without Uveitis: Insights from a Dutch Sarcoidosis Centre. Ocul Immunol Inflamm 2024:1-8. [PMID: 38916581 DOI: 10.1080/09273948.2024.2369931] [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: 02/09/2024] [Accepted: 06/15/2024] [Indexed: 06/26/2024]
Abstract
PURPOSE Uveitis is a common ocular manifestation in individuals with sarcoidosis, a multisystem inflammatory disorder. This study aimed to explore clinical and genetic factors associated with the presence or absence of uveitis in sarcoidosis patients. METHODS Total 625 Dutch sarcoidosis patients were included. Among these, 170 underwent ophthalmic examination, and 61 were diagnosed with uveitis. Demographic and clinical data, including age, gender, race, biopsy status, chest radiography findings, TNF-α inhibitor treatment, and uveitis classification were collected retrospectively from medical records. Genetic data was available for HLA haplotypes, TNF-α G-308A, and BTNL2 G16071A polymorphisms. RESULTS The majority of the patients presented with bilateral uveitis (80.3%). The proportion of women was higher in the uveitis group compared to the non-uveitis group (67.2% and 47.7%; p = 0.014). Pulmonary involvement (chest radiographic stage II-III) was significantly lower in patients with uveitis (36.1% versus 64.2%; p < 0.001). Patients with uveitis were more often treated with TNF-α inhibitors (67.2% versus 29.4%; p < 0.001) and the outcome was better compared with the non-uveitis group, 92% vs 68%, responders (p < 0.012). Uveitis patients treated with TNF-α inhibitors (either adalimumab or infliximab) were more likely to suffer from intermediate or posterior uveitis than anterior uveitis. Genetic analysis identified a significant association between the BTNL2 G16071A GG genotype and uveitis (p = 0.012). CONCLUSION This study highlights distinctive demographic, clinical and genetic features associated with uveitis in sarcoidosis patients. Ocular sarcoidosis was more prevalent in women. Further research is warranted to explore the implications of these findings for treatment strategies and prognostic assessments.
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Affiliation(s)
- Sanela Kuč
- University Eye Clinic, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
- School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands
| | - Petal Wijnen
- Interstitial Lung Disease (ILD) Care Foundation, Research Team, Ede, The Netherlands
- Department of Clinical Chemistry, Central Diagnostic Laboratory, MUMC, Maastricht, The Netherlands
| | - Roel Erckens
- University Eye Clinic, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
| | - Marlies Gijs
- University Eye Clinic, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
- School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands
| | - Carroll A B Webers
- University Eye Clinic, Maastricht University Medical Centre (MUMC), Maastricht, The Netherlands
| | - Otto Bekers
- Department of Clinical Chemistry, Central Diagnostic Laboratory, MUMC, Maastricht, The Netherlands
| | - Marjolein Drent
- Interstitial Lung Disease (ILD) Care Foundation, Research Team, Ede, The Netherlands
- ILD Center of Excellence, Department of Respiratory Medicine, Nieuwegein, The Netherlands
- Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
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Liao SY, Fingerlin T, Maier L. Genetic predisposition to sarcoidosis. J Autoimmun 2023:103122. [PMID: 37865580 DOI: 10.1016/j.jaut.2023.103122] [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: 08/22/2023] [Accepted: 10/04/2023] [Indexed: 10/23/2023]
Abstract
Sarcoidosis is a complex systemic disease with clinical heterogeneity based on varying phenotypes and natural history. The detailed etiology of sarcoidosis remains unknown, but genetic predisposition as well as environmental exposures play a significant role in disease pathogenesis. We performed a comprehensive review of germline genetic (DNA) and transcriptomic (RNA) studies of sarcoidosis, including both previous studies and more recent findings. In this review, we provide an assessment of the following: genetic variants in sarcoidosis susceptibility and phenotypes, ancestry- and sex-specific genetic variants in sarcoidosis, shared genetic architecture between sarcoidosis and other diseases, and gene-environment interactions in sarcoidosis. We also highlight the unmet needs in sarcoidosis genetic studies, including the pressing requirement to include diverse populations and have consistent definitions of phenotypes in the sarcoidosis research community to help advance the application of genetic predisposition to sarcoidosis disease risk and manifestations.
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Affiliation(s)
- Shu-Yi Liao
- National Jewish Health, Department of Medicine, Denver, CO, USA; University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA; Colorado School of Public Health, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA
| | - Tasha Fingerlin
- National Jewish Health, Department of Medicine, Denver, CO, USA; University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA; Colorado School of Public Health, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA; National Jewish Health, Department of Immunology and Genomic Medicine, Denver, CO, USA
| | - Lisa Maier
- National Jewish Health, Department of Medicine, Denver, CO, USA; University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA; Colorado School of Public Health, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA.
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Lombardi L, Le Clerc S, Wu CL, Bouassida J, Boukouaci W, Sugusabesan S, Richard JR, Lajnef M, Tison M, Le Corvoisier P, Barau C, Banaschewski T, Holt R, Durston S, Persico AM, Oakley B, Loth E, Buitelaar J, Murphy D, Leboyer M, Zagury JF, Tamouza R. A human leukocyte antigen imputation study uncovers possible genetic interplay between gut inflammatory processes and autism spectrum disorders. Transl Psychiatry 2023; 13:244. [PMID: 37407551 DOI: 10.1038/s41398-023-02550-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/24/2023] [Accepted: 06/27/2023] [Indexed: 07/07/2023] Open
Abstract
Autism spectrum disorders (ASD) are neurodevelopmental conditions that are for subsets of individuals, underpinned by dysregulated immune processes, including inflammation, autoimmunity, and dysbiosis. Consequently, the major histocompatibility complex (MHC)-hosted human leukocyte antigen (HLA) has been implicated in ASD risk, although seldom investigated. By utilizing a GWAS performed by the EU-AIMS consortium (LEAP cohort), we compared HLA and MHC genetic variants, single nucleotide polymorphisms (SNP), and haplotypes in ASD individuals, versus typically developing controls. We uncovered six SNPs, namely rs9268528, rs9268542, rs9268556, rs14004, rs9268557, and rs8084 that crossed the Bonferroni threshold, which form the underpinnings of 3 independent genetic pathways/blocks that differentially associate with ASD. Block 1 (rs9268528-G, rs9268542-G, rs9268556-C, and rs14004-A) afforded protection against ASD development, whilst the two remaining blocks, namely rs9268557-T, and rs8084-A, associated with heightened risk. rs8084 and rs14004 mapped to the HLA-DRA gene, whilst the four other SNPs located in the BTNL2 locus. Different combinations amongst BTNL2 SNPs and HLA amino acid variants or classical alleles were found either to afford protection from or contribute to ASD risk, indicating a genetic interplay between BTNL2 and HLA. Interestingly, the detected variants had transcriptional and/or quantitative traits loci implications. As BTNL2 modulates gastrointestinal homeostasis and the identified HLA alleles regulate the gastrointestinal tract in celiac disease, it is proposed that the data on ASD risk may be linked to genetically regulated gut inflammatory processes. These findings might have implications for the prevention and treatment of ASD, via the targeting of gut-related processes.
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Affiliation(s)
- Laura Lombardi
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
- Laboratoire Génomique, Bio-informatique et Chimie Moléculaire (EA7528), Conservatoire National des Arts et Métiers, 292, rue Saint Martin, 75003, Paris, France
- HESAM Université, Paris, France
| | - Sigrid Le Clerc
- Laboratoire Génomique, Bio-informatique et Chimie Moléculaire (EA7528), Conservatoire National des Arts et Métiers, 292, rue Saint Martin, 75003, Paris, France
- HESAM Université, Paris, France
| | - Ching-Lien Wu
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
| | - Jihène Bouassida
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
| | - Wahid Boukouaci
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
| | - Sobika Sugusabesan
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
| | - Jean-Romain Richard
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
| | - Mohamed Lajnef
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
| | - Maxime Tison
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
- Laboratoire Génomique, Bio-informatique et Chimie Moléculaire (EA7528), Conservatoire National des Arts et Métiers, 292, rue Saint Martin, 75003, Paris, France
- HESAM Université, Paris, France
| | - Philippe Le Corvoisier
- Université Paris Est Créteil, Inserm, Centre Investigation Clinique, CIC 1430, Henri Mondor, Créteil, F94010, France
| | - Caroline Barau
- Plateforme de Ressources Biologiques, HU Henri Mondor, Créteil, F94010, France
| | - Tobias Banaschewski
- Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Rosemary Holt
- Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Sarah Durston
- Education Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Antonio M Persico
- Child and Adolescent Neuropsychiatry Program at Modena University Hospital, & Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Bethany Oakley
- Department of Forensic and Neurodevelopemental Science, Institute of Psychatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Eva Loth
- Department of Forensic and Neurodevelopemental Science, Institute of Psychatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Jan Buitelaar
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Declan Murphy
- Department of Forensic and Neurodevelopemental Science, Institute of Psychatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Marion Leboyer
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, AP-HP, Hôpital Henri Mondor, Département Médico-Universitaire de Psychiatrie et d'Addictologie (DMU IMPACT), Fédération Hospitalo-Universitaire de Médecine de Précision (FHU ADAPT) and Fondation FondaMental, Créteil, F-94010, France
| | - Jean-François Zagury
- Laboratoire Génomique, Bio-informatique et Chimie Moléculaire (EA7528), Conservatoire National des Arts et Métiers, 292, rue Saint Martin, 75003, Paris, France
- HESAM Université, Paris, France
| | - Ryad Tamouza
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, F-94010, Créteil, France.
- Université Paris Est Créteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie translationnelle, AP-HP, Hôpital Henri Mondor, Département Médico-Universitaire de Psychiatrie et d'Addictologie (DMU IMPACT), Fédération Hospitalo-Universitaire de Médecine de Précision (FHU ADAPT) and Fondation FondaMental, Créteil, F-94010, France.
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Lee EY, Choi W, Burkholder AB, Perera L, Mack JA, Miller FW, Fessler MB, Cook DN, Karmaus PWF, Nakano H, Garantziotis S, Madenspacher JH, House JS, Akhtari FS, Schmitt CS, Fargo DC, Hall JE, Motsinger-Reif AA. Race/ethnicity-stratified fine-mapping of the MHC locus reveals genetic variants associated with late-onset asthma. Front Genet 2023; 14:1173676. [PMID: 37415598 PMCID: PMC10321602 DOI: 10.3389/fgene.2023.1173676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/09/2023] [Indexed: 07/08/2023] Open
Abstract
Introduction: Asthma is a chronic disease of the airways that impairs normal breathing. The etiology of asthma is complex and involves multiple factors, including the environment and genetics, especially the distinct genetic architecture associated with ancestry. Compared to early-onset asthma, little is known about genetic predisposition to late-onset asthma. We investigated the race/ethnicity-specific relationship among genetic variants within the major histocompatibility complex (MHC) region and late-onset asthma in a North Carolina-based multiracial cohort of adults. Methods: We stratified all analyses by self-reported race (i.e., White and Black) and adjusted all regression models for age, sex, and ancestry. We conducted association tests within the MHC region and performed fine-mapping analyses conditioned on the race/ethnicity-specific lead variant using whole-genome sequencing (WGS) data. We applied computational methods to infer human leukocyte antigen (HLA) alleles and residues at amino acid positions. We replicated findings in the UK Biobank. Results: The lead signals, rs9265901 on the 5' end of HLA-B, rs55888430 on HLA-DOB, and rs117953947 on HCG17, were significantly associated with late-onset asthma in all, White, and Black participants, respectively (OR = 1.73, 95%CI: 1.31 to 2.14, p = 3.62 × 10-5; OR = 3.05, 95%CI: 1.86 to 4.98, p = 8.85 × 10-6; OR = 19.5, 95%CI: 4.37 to 87.2, p = 9.97 × 10-5, respectively). For the HLA analysis, HLA-B*40:02 and HLA-DRB1*04:05, HLA-B*40:02, HLA-C*04:01, and HLA-DRB1*04:05, and HLA-DRB1*03:01 and HLA-DQB1 were significantly associated with late-onset asthma in all, White, and Black participants. Conclusion: Multiple genetic variants within the MHC region were significantly associated with late-onset asthma, and the associations were significantly different by race/ethnicity group.
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Affiliation(s)
- Eunice Y. Lee
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Wonson Choi
- Genomics and Bioinformatics Laboratory, Seoul National University, Seoul, Republic of Korea
| | - Adam B. Burkholder
- National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Lalith Perera
- Genomic Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Jasmine A. Mack
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
- Department of Obstetrics and Gynecology, University of Cambridge, Cambridge, United Kingdom
| | - Frederick W. Miller
- Environmental Autoimmunity Group, Clinical Research Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Michael B. Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Donald N. Cook
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States
- Immunogenetics Group, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Peer W. F. Karmaus
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Hideki Nakano
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Stavros Garantziotis
- Clinical Research Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Jennifer H. Madenspacher
- Clinical Research Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - John S. House
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Farida S. Akhtari
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
- Clinical Research Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Charles S. Schmitt
- Division of Translational Toxicology, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - David C. Fargo
- National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Janet E. Hall
- Clinical Research Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - Alison A. Motsinger-Reif
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Durham, NC, United States
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Kumari R, Hosseini ES, Warrington KE, Milonas T, Payne KK. Butyrophilins: Dynamic Regulators of Protective T Cell Immunity in Cancer. Int J Mol Sci 2023; 24:8722. [PMID: 37240071 PMCID: PMC10218201 DOI: 10.3390/ijms24108722] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
The efficacy of current immunotherapies remains limited in many solid epithelial malignancies. Recent investigations into the biology of butyrophilin (BTN) and butyrophilin-like (BTNL) molecules, however, suggest these molecules are potent immunosuppressors of antigen-specific protective T cell activity in tumor beds. BTN and BTNL molecules also associate with each other dynamically on cellular surfaces in specific contexts, which modulates their biology. At least in the case of BTN3A1, this dynamism drives the immunosuppression of αβ T cells or the activation of Vγ9Vδ2 T cells. Clearly, there is much to learn regarding the biology of BTN and BTNL molecules in the context of cancer, where they may represent intriguing immunotherapeutic targets that could potentially synergize with the current class of immune modulators in cancer. Here, we discuss our current understanding of BTN and BTNL biology, with a particular focus on BTN3A1, and potential therapeutic implications for cancer.
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Affiliation(s)
- Rinkee Kumari
- Medical Immunology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - Elaheh Sadat Hosseini
- Medical Immunology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
- Cellular and Molecular Pharmacology, Rutgers School of Graduate Studies, Rutgers, The State University of New Jersey, New Brunswick, NJ 08854, USA
| | - Kristen E. Warrington
- Medical Immunology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - Tyler Milonas
- Medical Immunology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - Kyle K. Payne
- Medical Immunology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
- Cellular and Molecular Pharmacology, Rutgers School of Graduate Studies, Rutgers, The State University of New Jersey, New Brunswick, NJ 08854, USA
- Department of Medicine, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
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Tuo S, Li C, Liu F, Zhu Y, Chen T, Feng Z, Liu H, Li A. A Novel Multitasking Ant Colony Optimization Method for Detecting Multiorder SNP Interactions. Interdiscip Sci 2022; 14:814-832. [PMID: 35788965 DOI: 10.1007/s12539-022-00530-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 05/29/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
MOTIVATION Linear or nonlinear interactions of multiple single-nucleotide polymorphisms (SNPs) play an important role in understanding the genetic basis of complex human diseases. However, combinatorial analytics in high-dimensional space makes it extremely challenging to detect multiorder SNP interactions. Most classic approaches can only perform one task (for detecting k-order SNP interactions) in each run. Since prior knowledge of a complex disease is usually not available, it is difficult to determine the value of k for detecting k-order SNP interactions. METHODS A novel multitasking ant colony optimization algorithm (named MTACO-DMSI) is proposed to detect multiorder SNP interactions, and it is divided into two stages: searching and testing. In the searching stage, multiple multiorder SNP interaction detection tasks (from 2nd-order to kth-order) are executed in parallel, and two subpopulations that separately adopt the Bayesian network-based K2-score and Jensen-Shannon divergence (JS-score) as evaluation criteria are generated for each task to improve the global search capability and the discrimination ability for various disease models. In the testing stage, the G test statistical test is adopted to further verify the authenticity of candidate solutions to reduce the error rate. RESULT Three multiorder simulated disease models with different interaction effects and three real age-related macular degeneration (AMD), rheumatoid arthritis (RA) and type 1 diabetes (T1D) datasets were used to investigate the performance of the proposed MTACO-DMSI. The experimental results show that the MTACO-DMSI has a faster search speed and higher discriminatory power for diverse simulation disease models than traditional single-task algorithms. The results on real AMD data and RA and T1D datasets indicate that MTACO-DMSI has the ability to detect multiorder SNP interactions at a genome-wide scale. Availability and implementation: https://github.com/shouhengtuo/MTACO-DMSI/.
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Affiliation(s)
- Shouheng Tuo
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an, 710121, Shaanxi, China.
- Shaanxi Key Laboratory of Network Data Analysis and Intelligent Processing, Xi'an, 710121, Shaanxi, China.
- Xi'an Key Laboratory of Big Data and Intelligent Computing, Xi'an, 710121, Shaanxi, China.
| | - Chao Li
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an, 710121, Shaanxi, China
- Shaanxi Key Laboratory of Network Data Analysis and Intelligent Processing, Xi'an, 710121, Shaanxi, China
- Xi'an Key Laboratory of Big Data and Intelligent Computing, Xi'an, 710121, Shaanxi, China
| | - Fan Liu
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an, 710121, Shaanxi, China
- Shaanxi Key Laboratory of Network Data Analysis and Intelligent Processing, Xi'an, 710121, Shaanxi, China
- Xi'an Key Laboratory of Big Data and Intelligent Computing, Xi'an, 710121, Shaanxi, China
| | - YanLing Zhu
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an, 710121, Shaanxi, China
- Shaanxi Key Laboratory of Network Data Analysis and Intelligent Processing, Xi'an, 710121, Shaanxi, China
- Xi'an Key Laboratory of Big Data and Intelligent Computing, Xi'an, 710121, Shaanxi, China
| | - TianRui Chen
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an, 710121, Shaanxi, China
- Shaanxi Key Laboratory of Network Data Analysis and Intelligent Processing, Xi'an, 710121, Shaanxi, China
- Xi'an Key Laboratory of Big Data and Intelligent Computing, Xi'an, 710121, Shaanxi, China
| | - ZengYu Feng
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an, 710121, Shaanxi, China
- Shaanxi Key Laboratory of Network Data Analysis and Intelligent Processing, Xi'an, 710121, Shaanxi, China
- Xi'an Key Laboratory of Big Data and Intelligent Computing, Xi'an, 710121, Shaanxi, China
| | - Haiyan Liu
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an, 710121, Shaanxi, China
- Shaanxi Key Laboratory of Network Data Analysis and Intelligent Processing, Xi'an, 710121, Shaanxi, China
- Xi'an Key Laboratory of Big Data and Intelligent Computing, Xi'an, 710121, Shaanxi, China
| | - Aimin Li
- School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, 710048, Shaanxi, China
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7
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Galdo G, Luongo G, Capacchione D, Abeni D, Grimaldi M, Fania L. Maculopapular sarcoidosis: the importance of skin signs. Dermatol Reports 2022; 15:9561. [PMID: 37056482 PMCID: PMC10086543 DOI: 10.4081/dr.2022.9561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 07/14/2022] [Indexed: 11/23/2022] Open
Abstract
Sarcoidosis is a multisystem disease that affects the skin in 20 to 30% of cases. Skin findings are often the initial presenting signs, and cutaneous sarcoidosis may appear with a wide variety of lesions; it is often considered an imitator of many other skin diseases. Clinical appearance and specific dermoscopic criteria, confirmed by a typical pathology, may guide to the correct diagnosis. We report a case of a man affected by maculo-papular sarcoidosis on the back, in which the detection of cutaneous lesions was the initial step to determine the systemic nature of the disease.
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8
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Wu J, Li Y, Rendahl A, Bhargava M. Novel Human FCGR1A Variants Affect CD64 Functions and Are Risk Factors for Sarcoidosis. Front Immunol 2022; 13:841099. [PMID: 35371020 PMCID: PMC8968912 DOI: 10.3389/fimmu.2022.841099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/24/2022] [Indexed: 12/19/2022] Open
Abstract
CD64 (or FcγRIA) is the sole functional high affinity IgG Fc receptor coded by FCGR1A gene in humans. The FCGR1A genetics has not been comprehensively investigated and effects of human FCGR1A variants on immune functions remain unknown. In the current study, we identified three novel FCGR1A variants including the single nucleotide variant (SNV) rs1848781 (c.-131) in the proximal FCGR1A gene promoter region, the rs587598788 indel variant within the FCGR1A intron 5, and the non-synonymous SNV rs1050204 (c.970G>A or FcγRIA-p.D324N) in the FCGR1A coding region. Genotype-phenotype analyses revealed that SNV rs1848781 genotypes were significantly associated with CD64 expression levels. Promoter reporter assays show that rs1848781G allele had significantly higher promoter activity than the rs1848781C, confirming that the rs1848781 is a functional FCGR1A SNV affecting promoter activity and gene expression. The rs587598788 indel genotypes were also significantly associated with levels of CD64 expression. Moreover, the non-synonymous SNV rs1050204 (FcγRIA-p.D324N) alleles significantly affected CD64-mediated phagocytosis, degranulation, and pro-inflammatory cytokine productions. Genetic analyses revealed that FCGR1A genotypes were significantly associated with sarcoidosis susceptibility and severity. Our data suggest that FCGR1A genetic variants may affect immune responses and play a role in sarcoidosis.
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Affiliation(s)
- Jianming Wu
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States
- *Correspondence: Jianming Wu, ; orcid.org/000-0001-9142-7066
| | - Yunfang Li
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States
| | - Aaron Rendahl
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States
| | - Maneesh Bhargava
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Department of Medicine, School of Medicine, University of Minnesota, Minneapolis, MN, United States
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9
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Dolatkhah K, Alizadeh N, Mohajjel-Shoja H, Abdoli Shadbad M, Hajiasgharzadeh K, Aghebati-Maleki L, Baghbanzadeh A, Hosseinkhani N, Karim Ahangar N, Baradaran B. B7 immune checkpoint family members as putative therapeutics in autoimmune disease: An updated overview. Int J Rheum Dis 2022; 25:259-271. [PMID: 34994525 DOI: 10.1111/1756-185x.14273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 12/11/2021] [Accepted: 12/18/2021] [Indexed: 12/23/2022]
Abstract
Autoimmune diseases, especially among young people in the US, are one of the leading causes of morbidity and death. The immune responses are the fundamental pathogenicity of autoimmune disorders. The equilibrium between stimulatory and inhibitory signals is critical for the stimulation, migration, survival, and T cell-related immune responses. The B7 family can substantially regulate T cell-mediated immune responses. Nevertheless, recent breakthroughs in immune checkpoint blockade in cancer immunotherapy have facilitated autoimmune diseases, especially among the prone populations. In the current study, we tried to concisely review the role of the B7 family in regulating immune reactions and the influence of immune checkpoint inhibitors on autoimmunity development.
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Affiliation(s)
- Katayoun Dolatkhah
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nazila Alizadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hanieh Mohajjel-Shoja
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | | | | | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negar Hosseinkhani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Noora Karim Ahangar
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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10
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Kök GF, Türsen Ü. The Immunogenetics of Granulomatous Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1367:349-368. [DOI: 10.1007/978-3-030-92616-8_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Osaki T, Souri M, Ichinose A. Important roles of the human leukocyte antigen class I and II molecules and their associated genes in the autoimmune coagulation factor XIII deficiency via whole-exome sequencing analysis. PLoS One 2021; 16:e0257322. [PMID: 34506591 PMCID: PMC8432773 DOI: 10.1371/journal.pone.0257322] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 08/30/2021] [Indexed: 11/19/2022] Open
Abstract
Autoimmune coagulation factor XIII deficiency is a bleeding disorder caused by the formation of autoantibodies against the coagulation factor XIII (FXIII); however, the molecular mechanism underlying this process is unknown. Therefore, in the present study, we aimed to elucidate this mechanism by performing whole-exome sequencing analysis of 20 cases of autoimmune FXIII deficiency. We identified approximately 21,788–23,916 variants in each case. In addition to their ability to activate T cells, present antigens, and immune tolerance, the candidate alleles were further narrowed down according to their allelic frequencies and the magnitude of damage caused by the substitution of amino acids. After selecting 44 candidate alleles, we investigated whether they were associated with the FXIII inhibitory titers and/or the anti-FXIII autoantibodies. We found that two polymorphisms whose variant allele frequencies were significantly lower in the patients tended to decrease FXIII inhibitory titers as the number of variant alleles increased. We also found that five polymorphisms whose variant allele frequencies were significantly higher in the patients tended to increase the levels of the anti-FXIII autoantibodies as the number of variant alleles increased. All of these polymorphisms were found in the human leukocyte antigen (HLA) class I and II molecules and their associated genes. In particular, the HLA class II molecule and its associated genes were found to be involved in the presentation of foreign antigens as well as the negative regulation of the proliferation of T-cells and the release of cytokines. Polymorphisms in the HLA class II molecules and the cytotoxic T lymphocyte antigen 4 have been reported to be associated with the development of autoantibodies in acquired hemophilia A. Therefore, we hypothesized that these polymorphisms may be associated with the development of autoantibodies in autoimmune FXIII deficiency.
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Affiliation(s)
- Tsukasa Osaki
- Japanese Collaborative Research Group on Autoimmune Coagulation Factor Deficiencies (JCRG supported by the Japanese Ministry of Health, Labor and Welfare), Yamagata, Japan
- Department of Molecular Patho-Biochemistry and Patho-Biology, Yamagata University School of Medicine, Yamagata, Japan
- Department of Public Health and Hygiene, Yamagata University Faculty of Medicine, Yamagata, Japan
- * E-mail:
| | - Masayoshi Souri
- Japanese Collaborative Research Group on Autoimmune Coagulation Factor Deficiencies (JCRG supported by the Japanese Ministry of Health, Labor and Welfare), Yamagata, Japan
- Department of Molecular Patho-Biochemistry and Patho-Biology, Yamagata University School of Medicine, Yamagata, Japan
- Department of Public Health and Hygiene, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Akitada Ichinose
- Japanese Collaborative Research Group on Autoimmune Coagulation Factor Deficiencies (JCRG supported by the Japanese Ministry of Health, Labor and Welfare), Yamagata, Japan
- Department of Molecular Patho-Biochemistry and Patho-Biology, Yamagata University School of Medicine, Yamagata, Japan
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12
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Abstract
Epigenetic modifications are emerging as important regulatory mechanisms of gene expression in lung disease, given that they are influenced by environmental exposures and genetic variants, and that they regulate immune and fibrotic processes. In this review, we introduce these concepts with a focus on the study of DNA methylation and histone modifications and discuss how they have been applied to lung disease, and how they can be applied to sarcoidosis. This information has implications for other exposure and immunologically mediated lung diseases, such as chronic beryllium disease, hypersensitivity pneumonitis, and asbestosis.
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Affiliation(s)
- Iain R Konigsberg
- Human Medical Genetics and Genomics Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Dept of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Lisa A Maier
- Dept of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Dept of Medicine, National Jewish Health, Denver, CO, USA
- Dept of Environmental and Occupational Health, Colorado School of Public Health, Aurora, CO, USA
| | - Ivana V Yang
- Human Medical Genetics and Genomics Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Dept of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Dept of Epidemiology, Colorado School of Public Health, Aurora, CO, USA
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13
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Abstract
PURPOSE OF REVIEW The aim of this article is to describe the known health disparities that exist among patients with sarcoidosis by socioeconomic status, race, and gender, review potential contributors to health disparities in sarcoidosis, investigate the intersectionality among socioeconomic status, race, and gender in sarcoidosis, and outline a research agenda to address these disparities. RECENT FINDINGS Recent studies have reported the significant financial strain a diagnosis of sarcoidosis has on individuals and the disproportionate affect the strain has on low socioeconomic status individuals, Blacks, and females. Worse dyspnea, lower health-related quality of life, and higher rates of mortality and hospitalization are more common among those who are Black, female, or of low socioeconomic status. SUMMARY Health disparities in sarcoidosis by socioeconomic status, race, and gender have been described for decades. In this review, we describe potential contributors to health disparities including stress and propose interventions to address disparities including creating educational programs accessible for low-income patients and caregivers, targeting medication adherence and trust in physicians and the medical system, and ensuring access to high-quality care for all patients. As clinicians and researchers, we owe it to our patients to not only describe the health disparities that exist but also stimulate to achieve improvement in sarcoidosis.
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14
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Kirkil G, Lower E, Baughman R. Advances in predicting patient survival in pulmonary sarcoidosis. Expert Opin Orphan Drugs 2021. [DOI: 10.1080/21678707.2021.1925107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Gamze Kirkil
- Medicine Faculty, Department of Chest Disease, Firat University, Elazig, Turkey
| | - Elyse Lower
- Department of Medicine, University of Cincinnati Medical Center, Cincinnati, OH, USA
| | - Robert Baughman
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Cincinnati, USA
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15
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Takeuchi M, Mizuki N, Ohno S. Pathogenesis of Non-Infectious Uveitis Elucidated by Recent Genetic Findings. Front Immunol 2021; 12:640473. [PMID: 33912164 PMCID: PMC8072111 DOI: 10.3389/fimmu.2021.640473] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/22/2021] [Indexed: 01/01/2023] Open
Abstract
Uveitis is a generic term for inflammation of the uvea, which includes the iris, ciliary body, and choroid. Prevalence of underlying non-infectious uveitis varies by race and region and is a major cause of legal blindness in developed countries. Although the etiology remains unclear, the involvement of both genetic and environmental factors is considered important for the onset of many forms of non-infectious uveitis. Major histocompatibility complex (MHC) genes, which play a major role in human immune response, have been reported to be strongly associated as genetic risk factors in several forms of non-infectious uveitis. Behçet’s disease, acute anterior uveitis (AAU), and chorioretinopathy are strongly correlated with MHC class I-specific alleles. Moreover, sarcoidosis and Vogt-Koyanagi-Harada (VKH) disease are associated with MHC class II-specific alleles. These correlations can help immunogenetically classify the immune pathway involved in each form of non-infectious uveitis. Genetic studies, including recent genome-wide association studies, have identified several susceptibility genes apart from those in the MHC region. These genetic findings help define the common or specific pathogenesis of ocular inflammatory diseases by comparing the susceptibility genes of each form of non-infectious uveitis. Interestingly, genome-wide association of the interleukin (IL)23R region has been identified in many of the major forms of non-infectious uveitis, such as Behçet’s disease, ocular sarcoidosis, VKH disease, and AAU. The interleukin-23 (IL-23) receptor, encoded by IL23R, is expressed on the cell surface of Th17 cells. IL-23 is involved in the homeostasis of Th17 cells and the production of IL-17, which is an inflammatory cytokine, indicating that a Th17 immune response is a common key in the pathogenesis of non-infectious uveitis. Based on the findings from the immunogenetics of non-infectious uveitis, a personalized treatment approach based on the patient’s genetic make-up is expected.
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Affiliation(s)
- Masaki Takeuchi
- Department of Ophthalmology and Visual Science, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Nobuhisa Mizuki
- Department of Ophthalmology and Visual Science, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shigeaki Ohno
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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16
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Javadi A, Zarei M, Pourabdollah M, Sadr M, Kiani A, Abedini A, Shamaei M. DNA sequencing validation by PCR-RFLP for evaluating butyrophilin-like 2 rs2076530 polymorphism in Iranian patients with sarcoidosis. SARCOIDOSIS, VASCULITIS, AND DIFFUSE LUNG DISEASES : OFFICIAL JOURNAL OF WASOG 2021; 38:e2021050. [PMID: 35115755 PMCID: PMC8787370 DOI: 10.36141/svdld.v38i4.11152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 11/02/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Sarcoidosis is a multifactorial immune disorder with an uncertain origin. A single nucleotide polymorphism (G→A, rs2076530) in the butyrophilin-like 2 (BTNL2) gene results in the formation of truncating protein. This study aimed to genotype the predisposition of the BTNL2 rs2076530 polymorphism in Iranian patients with sarcoidosis using the RFLP technique. MATERIALS AND METHODS In this study, 80 patients with sarcoidosis and 80 healthy individuals were included. The rs2076530 polymorphism of the BTNL2 gene was genotyped using the PCR-RFLP method by AvrII restriction enzyme and confirmed by DNA sequencing (Capillary electrophoresis 3130, ABI). RESULTS There was a statistically significant difference between proportions of patients with AA (47,5%) and controls (27.5%) (OR=2.38, 95%CI:1.23-4.61, P=0.009). In addition, a significant difference was observed in the frequency of the A allele (62.5%) in sarcoidosis (OR=2.14, 95%CI:1.37-3.35, P=0.001). A Bonferroni correction with P<0.0038 indicates a statistical difference for genotype AA (P=0.009). In an effective model, binary logistic regression analysis indicates a statistical association between AA genotype and sarcoidosis (P=0.018 with 60% prediction). Based on the gene analysis study using DNA sequencing, all of the mentioned mutations were seen via RFLP. CONCLUSION According to our findings, the BTNL2 rs2076530 A allele in the Iranian population is associated with susceptibility to sarcoidosis. This designed PCR-RFLP method for detecting SNPs is effective as DNA sequencing.
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Affiliation(s)
- Alireza Javadi
- Virology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Zarei
- Genetic Research Center, Molecular and Cellular Department, Ashkzar Azad University, Yazd, Iran
| | - Mihan Pourabdollah
- Chronic Respiratory Disease Research Center, NRITLD, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Makan Sadr
- Virology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arda Kiani
- Chronic Respiratory Disease Research Center, NRITLD, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Abedini
- Chronic Respiratory Disease Research Center, NRITLD, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Shamaei
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Abstract
Rather than a single disease entity, sarcoidosis may be a constellation of "sarcoidoses" with a characteristic pattern of organ involvement and clinic course, depending upon the triggering exposure and underlying epidemiologic factors such as race. This review examines the racial disparities inherent to sarcoidosis disease course and mortality and discusses factors that may be responsible for these findings. In the United States, black patients with sarcoidosis experience more severe pulmonary disease, more multiorgan involvement, and an overall worse prognosis with higher rates of hospitalization and mortality. Beyond inherent genotype, ascertainment and access to medical care, physician implicit bias, and patient perceived discrimination likely play a role. Moving forward, epidemiologic concepts can be used to formulate strategies for control, treatment, and even prevention of disease in black Americans at risk for developing life-altering or life-threatening sarcoidosis phenotypes. Identification and rectification of modifiable risk factors such as socioeconomic status, lack of insurance, and financial barriers to care as well as the incorporation of implicit bias training for physician will likely lead to improvement in discordant outcomes.
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Affiliation(s)
- Kerry Maryse Hena
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, New York University, New York, NY, United States
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18
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Arbustini E, Narula N, Giuliani L, Di Toro A. Genetic Basis of Myocarditis: Myth or Reality? MYOCARDITIS 2020. [PMCID: PMC7122345 DOI: 10.1007/978-3-030-35276-9_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The genetic basis of myocarditis remains an intriguing concept, at least as long as the definition of myocarditis constitutes the definitive presence of myocardial inflammation sufficient to cause the observed ventricular dysfunction in the setting of cardiotropic infections. Autoimmune or immune-mediated myocardial inflammation constitutes a complex area of clinical interest, wherein numerous and not yet fully understood role of hereditary auto-inflammatory diseases can result in inflammation of the pericardium and myocardium. Finally, myocardial involvement in hereditary immunodeficiency diseases, cellular and humoral, is a possible trigger for infections which may complicate the diseases themselves. Whether the role of constitutional genetics can make the patient susceptible to myocardial inflammation remains yet to be explored.
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19
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Wang G, Bai Y, Fu W, Feng Y, Chen W, Li G, Wu X, Meng H, Liu Y, Wei W, Wang S, Wei S, Zhang X, He M, Yang H, Guo H. Daily cooking duration and its joint effects with genetic polymorphisms on lung cancer incidence: Results from a Chinese prospective cohort study. ENVIRONMENTAL RESEARCH 2019; 179:108747. [PMID: 31557604 DOI: 10.1016/j.envres.2019.108747] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/30/2019] [Accepted: 09/15/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES In this study, we conducted a prospective cohort study to investigate the joint effects of daily cooking duration with single nucleotide polymorphisms (SNPs) on lung cancer incidence. MATERIALS AND METHODS A total of 33,868 individuals recruited in 2013 from Dongfeng-Tongji cohort study were included in our research, in which 5178 participants were genotyped. Daily cooking duration was accessed by questionnaire, and the incident lung cancer cases were confirmed. Fifteen lung cancer related SNPs were selected according to the previous reports. We used the multiple Cox regression models to evaluate the separate and joint effects of daily cooking duration and SNPs on lung cancer incidence. RESULTS Each 1-h increase in daily cooking duration was associated with a 17% elevated risk of lung cancer incidence [hazard ratio (HR) (95%CI) = 1.17(1.03, 1.33)]. Specifically, subjects with daily cooking duration >2 h/day had a 2.05-fold increased incident risk of lung cancer than those without cooking [HR(95%CI) = 2.05(1.20, 3.53)] (Ptrend = 0.011). The rs2395185 and rs3817963, both located at 6p21.32, were significantly associated with lung cancer incidence. Compared with no cooking subjects with rs2395185GG or rs3817963TT genotype, subjects with daily cooking >2 h/day and carrying rs2395185GT + TT genotypes had a 2.48-fold increased risk of lung cancer [HR(95%CI) = 2.48(1.03, 5.97)], and there were significant joint effects of rs3817963TC + CC with daily cooking 1-2 and >2 h/day [HR(95%CI) = 2.23(1.07, 4.64) and 2.22(1.05, 4.68), respectively]. CONCLUSIONS Longer daily cooking duration, especially daily cooking >2 h/day, was associated with increased risk of lung cancer. There were significant joint effects of rs2395185 and rs3817963 with daily cooking duration on lung cancer incidence. This study offered a new indicator of cooking related pollution exposure and added new evidence for the joint effects of environment and genetic factors on lung cancer incidence.
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Affiliation(s)
- Gege Wang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yansen Bai
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenshan Fu
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Feng
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weilin Chen
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guyanan Li
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiulong Wu
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Meng
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhang Liu
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wei
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Suhan Wang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sheng Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaomin Zhang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meian He
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Handong Yang
- Dongfeng Central Hospital, Dongfeng Motor Corporation and Hubei University of Medicine, Shiyan, Hubei, China
| | - Huan Guo
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Terasaki F, Azuma A, Anzai T, Ishizaka N, Ishida Y, Isobe M, Inomata T, Ishibashi-Ueda H, Eishi Y, Kitakaze M, Kusano K, Sakata Y, Shijubo N, Tsuchida A, Tsutsui H, Nakajima T, Nakatani S, Horii T, Yazaki Y, Yamaguchi E, Yamaguchi T, Ide T, Okamura H, Kato Y, Goya M, Sakakibara M, Soejima K, Nagai T, Nakamura H, Noda T, Hasegawa T, Morita H, Ohe T, Kihara Y, Saito Y, Sugiyama Y, Morimoto SI, Yamashina A. JCS 2016 Guideline on Diagnosis and Treatment of Cardiac Sarcoidosis - Digest Version. Circ J 2019; 83:2329-2388. [PMID: 31597819 DOI: 10.1253/circj.cj-19-0508] [Citation(s) in RCA: 218] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fumio Terasaki
- Medical Education Center / Department of Cardiology, Osaka Medical College
| | - Arata Azuma
- Department of Pulmonary Medicine, Nippon Medical School
| | - Toshihisa Anzai
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Nobukazu Ishizaka
- Department of Internal Medicine (III) / Department of Cardiology, Osaka Medical College
| | - Yoshio Ishida
- Department of Internal Medicine, Kaizuka City Hospital
| | - Mitsuaki Isobe
- Department of Cardiovascular Medicine, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University
| | - Takayuki Inomata
- Department of Cardiology, Kitasato University Kitasato Institute Hospital
| | | | - Yoshinobu Eishi
- Department of Human Pathology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University
| | - Masafumi Kitakaze
- Department of Clinical Medicine and Development, National Cerebral and Cardiovascular Center
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
| | | | | | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences
| | - Takatomo Nakajima
- Division of Cardiology, Saitama Cardiovascular and Respiratory Center
| | - Satoshi Nakatani
- Division of Functional Diagnostics, Department of Health Sciences, Osaka University Graduate School of Medicine
| | - Taiko Horii
- Department of Cardiovascular Surgery, Kagawa University School of Medicine
| | | | - Etsuro Yamaguchi
- Department of Respiratory Medicine and Allergology, Aichi Medical University School of Medicine
| | | | - Tomomi Ide
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University
| | - Hideo Okamura
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | | | - Masahiko Goya
- Department of Cardiology, Tokyo Medical and Dental University
| | - Mamoru Sakakibara
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine
| | - Kyoko Soejima
- Department of Cardiology, Kyorin University Faculty of Medicine
| | - Toshiyuki Nagai
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | | | - Takashi Noda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Takuya Hasegawa
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | | | - Tohru Ohe
- Department of Cardiology, Sakakibara Heart Institute of Okayama
| | - Yasuki Kihara
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Yoshihiko Saito
- Department of Cardiorenal Medicine and Metabolic Disease, Nara Medical University
| | - Yukihiko Sugiyama
- Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University
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21
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Genetic Variants Associated with FDNY WTC-Related Sarcoidosis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16101830. [PMID: 31126090 PMCID: PMC6572061 DOI: 10.3390/ijerph16101830] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/02/2019] [Accepted: 05/19/2019] [Indexed: 12/27/2022]
Abstract
Sarcoidosis is a systemic granulomatous disease of unknown etiology. It may develop in response to an exposure or inflammatory trigger in the background of a genetically primed abnormal immune response. Thus, genetic studies are potentially important to our understanding of the pathogenesis of sarcoidosis. We developed a case-control study which explored the genetic variations between firefighters in the Fire Department of the City of New York (FDNY) with World Trade Center (WTC)-related sarcoidosis and those with WTC exposure, but without sarcoidosis. The loci of fifty-one candidate genes related to granuloma formation, inflammation, immune response, and/or sarcoidosis were sequenced at high density in enhancer/promoter, exonic, and 5’ untranslated regions. Seventeen allele variants of human leukocyte antigen (HLA) and non-HLA genes were found to be associated with sarcoidosis, and all were within chromosomes 1 and 6. Our results also suggest an association between extrathoracic involvement and allele variants of HLA and non-HLA genes found not only on chromosomes 1 and 6, but also on chromosomes 16 and 17. We found similarities between genetic variants with WTC-related sarcoidosis and those reported previously in sporadic sarcoidosis cases within the general population. In addition, we identified several allele variants never previously reported in association with sarcoidosis. If confirmed in larger studies with known environmental exposures, these novel findings may provide insight into the gene-environment interactions key to the development of sarcoidosis.
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22
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Tian X, Lin Y, Cui C, Su M, Lai L. BTNL2-Ig Protein Attenuates Type 1 Diabetes in Non-Obese Diabetic (NOD) Mice. Adv Healthc Mater 2019; 8:e1800987. [PMID: 30884196 DOI: 10.1002/adhm.201800987] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Indexed: 12/23/2022]
Abstract
Type 1 diabetes (T1D) is a T cell-mediated autoimmune disease in which insulin-producing β-cells are destroyed. Although butyrophilin-like 2 (BTNL2) has been shown to be a negative T cell regulator in vitro, its ability to inhibit T cell responses in vivo has not been determined. In this study, the effect of a recombinant BTNL2-IgG2a Fc (rBTNL2-Ig) fusion protein on T1D development in vivo is determined. It is shown here that in vivo administration of rBTNL2-Ig ameliorates T1D in non-obese diabetic (NOD) mice. This is associated with the ability of rBTNL2-Ig to inhibit the proliferation, activation, and inflammatory cytokine production from autoreactive T cells in vivo. In addition, rBTNL2-Ig treatment increases the generation of regulatory T cells. The results suggest that targeting the BTNL2 pathway has the potential to be used in the prevention and treatment of patients with T1D.
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Affiliation(s)
- Xiaohong Tian
- Department of Allied Health SciencesUniversity of Connecticut Storrs CT 06269 USA
- Department of Tissue engineeringSchool of Fundamental ScienceChina Medical University Shenyang Liaoning 110122 China
| | - Yujun Lin
- Department of Allied Health SciencesUniversity of Connecticut Storrs CT 06269 USA
| | - Cheng Cui
- Department of Allied Health SciencesUniversity of Connecticut Storrs CT 06269 USA
| | - Min Su
- Department of Allied Health SciencesUniversity of Connecticut Storrs CT 06269 USA
| | - Laijun Lai
- Department of Allied Health SciencesUniversity of Connecticut Storrs CT 06269 USA
- University of Connecticut Stem Cell InstituteUniversity of Connecticut Storrs CT 06269 USA
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Clinical epidemiology of familial sarcoidosis: A systematic literature review. Respir Med 2019; 149:36-41. [DOI: 10.1016/j.rmed.2018.11.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 11/19/2022]
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25
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26
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Salah S, Abad S, Monnet D, Brézin A. Sarcoidosis. J Fr Ophtalmol 2018; 41:e451-e467. [DOI: 10.1016/j.jfo.2018.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/09/2018] [Accepted: 10/11/2018] [Indexed: 02/07/2023]
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Cui C, Tian X, Lin Y, Su M, Chen Q, Wang SY, Lai L. In vivo administration of recombinant BTNL2-Fc fusion protein ameliorates graft-versus-host disease in mice. Cell Immunol 2018; 335:22-29. [PMID: 30389093 DOI: 10.1016/j.cellimm.2018.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/02/2018] [Accepted: 10/24/2018] [Indexed: 10/28/2022]
Abstract
Although hematopoietic stem cell transplantation (HSCT) has been widely used in the treatment of many diseases, graft-versus-host disease (GVHD) remains a major complication after allogeneic HSCT. Butyrophilin-like 2 (BTNL2) protein has been reported to have the ability to inhibit T cell proliferation in vitro; its ability to inhibit T cell responses in vivo has not been determined. We show here that in vivo administration of recombinant BTNL2-IgG2a Fc (rBTNL2-Ig) fusion protein ameliorates GVHD in mice. This is related to the ability of rBTNL2-Ig to inhibit T cell proliferation, activation and Th1/Th17 cytokine production in vivo. Furthermore, rBTNL2-Ig treatment increases the generation of regulatory T cells. Our results suggest that rBTNL2-Ig has the potential to be used in the prevention and treatment of patients with GVHD.
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Affiliation(s)
- Cheng Cui
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States; Department of Physiology, College of Basic Medical Science, China Medical University, Shenyang, Liaoning, China
| | - Xiaohong Tian
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States
| | - Yujun Lin
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States
| | - Min Su
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States
| | - Qingquan Chen
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States
| | - Shao-Yuan Wang
- Fujian Institute of Hematology, Hematology Department of Fujian Medical University Union Hospital, China
| | - Laijun Lai
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT, United States; University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT, United States.
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28
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A sarcoidosis clinician's perspective of MHC functional elements outside the antigen binding site. Hum Immunol 2018; 80:85-89. [PMID: 29859205 DOI: 10.1016/j.humimm.2018.05.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/29/2018] [Accepted: 05/29/2018] [Indexed: 01/05/2023]
Abstract
Sarcoidosis is a multisystem granulomatous disease of unknown cause. Evidence supports an integral role for interactions at the MHC binding site in the development of sarcoidosis. However, despite this evidence, there are clinical data that suggest that additional mechanisms are involved in the immunopathogenesis of this disease. This manuscript provides a brief clinical description of sarcoidosis, and a clinician's perspective of the immunopathogenesis of sarcoidosis in terms of the MHC binding site, MHC functional elements beyond the binding site, and other possible alternative mechanisms. Input from clinicians will be essential in establishing the immunologic cause of sarcoidosis as a detailed phenotypic characterization of disease will be required.
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Besnard V, Calender A, Bouvry D, Pacheco Y, Chapelon-Abric C, Jeny F, Nunes H, Planès C, Valeyre D. G908R NOD2 variant in a family with sarcoidosis. Respir Res 2018; 19:44. [PMID: 29554915 PMCID: PMC5859391 DOI: 10.1186/s12931-018-0748-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 03/13/2018] [Indexed: 12/16/2022] Open
Abstract
Background Sarcoidosis is a systemic disease characterized by the formation of immune granulomas in various organs, mainly the lungs and the lymphatic system. Exaggerated granulomatous reaction might be triggered in response to unidentified antigens in individuals with genetic susceptibility. The present study aimed to determine the genetic variants implicated in a familial case of sarcoidosis. Methods Sarcoidosis presentation and history, NOD2 profile, NF-κB and cytokine production in blood monocytes/macrophages were evaluated in individuals from a family with late appearance of sarcoidosis. Results In the present study, we report a case of familial sarcoidosis with typical thoracic sarcoidosis and carrying the NOD2 2722G > C variant. This variant is associated with the presence of three additional SNPs for the IL17RA, KALRN and EPHA2 genes, which discriminate patients expressing the disease from others. Despite a decrease in NF-κB activity, IL-8 and TNF-A mRNA levels were increased at baseline and in stimulated conditions. Conclusions Combination of polymorphisms in the NOD2, IL17RA, EPHA2 and KALRN genes could play a significant role in the development of sarcoidosis by maintaining a chronic pro-inflammatory status in macrophages. Electronic supplementary material The online version of this article (10.1186/s12931-018-0748-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Valérie Besnard
- Université Paris 13, Sorbonne Paris Cité, Laboratoire EA2363 "Hypoxie et Poumon", 74 rue Marcel Cachin, 93017, Bobigny cedex, France.
| | - Alain Calender
- Génétique des cancers et maladies multifactorielles, Hospices Civils de Lyon, GHE, Centre de Biologie et Pathologie ES, Bron, France
| | - Diane Bouvry
- Université Paris 13, Sorbonne Paris Cité, Laboratoire EA2363 "Hypoxie et Poumon", 74 rue Marcel Cachin, 93017, Bobigny cedex, France.,AP-HP, Hôpital Avicenne, Bobigny, France
| | - Yves Pacheco
- Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Université Claude Bernard - Lyon 1, EA-7426, Lyon, France.,Université Claude Bernard Lyon 1 - EA-7426, 165 Chemin du Grand Revoyet, F-69495, Pierre Benite, France
| | - Catherine Chapelon-Abric
- Department of Internal Medicine and Clinical Immunology, Groupe Hospitalier La Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Florence Jeny
- Université Paris 13, Sorbonne Paris Cité, Laboratoire EA2363 "Hypoxie et Poumon", 74 rue Marcel Cachin, 93017, Bobigny cedex, France.,AP-HP, Hôpital Avicenne, Bobigny, France
| | - Hilario Nunes
- Université Paris 13, Sorbonne Paris Cité, Laboratoire EA2363 "Hypoxie et Poumon", 74 rue Marcel Cachin, 93017, Bobigny cedex, France.,AP-HP, Hôpital Avicenne, Bobigny, France
| | - Carole Planès
- Université Paris 13, Sorbonne Paris Cité, Laboratoire EA2363 "Hypoxie et Poumon", 74 rue Marcel Cachin, 93017, Bobigny cedex, France.,AP-HP, Hôpital Avicenne, Bobigny, France
| | - Dominique Valeyre
- Université Paris 13, Sorbonne Paris Cité, Laboratoire EA2363 "Hypoxie et Poumon", 74 rue Marcel Cachin, 93017, Bobigny cedex, France.,AP-HP, Hôpital Avicenne, Bobigny, France
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Abstract
Granulomas are organized aggregates of macrophages, often with characteristic morphological changes, and other immune cells. These evolutionarily ancient structures form in response to persistent particulate stimuli-infectious or noninfectious-that individual macrophages cannot eradicate. Granulomas evolved as protective responses to destroy or sequester particles but are frequently pathological in the context of foreign bodies, infections, and inflammatory diseases. We summarize recent findings that suggest that the granulomatous response unfolds in a stepwise program characterized by a series of macrophage activations and transformations that in turn recruit additional cells and produce structural changes. We explore why different granulomas vary and the reasons that granulomas are protective and pathogenic. Understanding the mechanisms and role of granuloma formation may uncover new therapies for the multitude of granulomatous diseases that constitute serious medical problems while enhancing the protective function of granulomas in infections.
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Affiliation(s)
- Antonio J Pagán
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, United Kingdom; , .,MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
| | - Lalita Ramakrishnan
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, United Kingdom; , .,MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
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31
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Retzer MJ, Wasilewska EM, Craver RD, Gedalia A. A 19-Year-Old Woman With Increased Urinary Frequency, Abdominal and Back Pain. Clin Pediatr (Phila) 2017; 56:1260-1262. [PMID: 27872361 DOI: 10.1177/0009922816679511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Michael J Retzer
- 1 Departments of Pediatrics, Radiology, and pathology, Children's Hospital and LSU Health Sciences Center, New Orleans, LA, USA
| | - Ewa M Wasilewska
- 1 Departments of Pediatrics, Radiology, and pathology, Children's Hospital and LSU Health Sciences Center, New Orleans, LA, USA
| | - Randall D Craver
- 1 Departments of Pediatrics, Radiology, and pathology, Children's Hospital and LSU Health Sciences Center, New Orleans, LA, USA
| | - Abraham Gedalia
- 1 Departments of Pediatrics, Radiology, and pathology, Children's Hospital and LSU Health Sciences Center, New Orleans, LA, USA
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32
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Ohshimo S, Guzman J, Costabel U, Bonella F. Differential diagnosis of granulomatous lung disease: clues and pitfalls. Eur Respir Rev 2017; 26:26/145/170012. [PMID: 28794143 PMCID: PMC9488688 DOI: 10.1183/16000617.0012-2017] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 05/25/2017] [Indexed: 01/11/2023] Open
Abstract
Granulomatous lung diseases are a heterogeneous group of disorders that have a wide spectrum of pathologies with variable clinical manifestations and outcomes. Precise clinical evaluation, laboratory testing, pulmonary function testing, radiological imaging including high-resolution computed tomography and often histopathological assessment contribute to make a confident diagnosis of granulomatous lung diseases. Differential diagnosis is challenging, and includes both infectious (mycobacteria and fungi) and noninfectious lung diseases (sarcoidosis, necrotising sarcoid granulomatosis, hypersensitivity pneumonitis, hot tub lung, berylliosis, granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis, rheumatoid nodules, talc granulomatosis, Langerhans cell histiocytosis and bronchocentric granulomatosis). Bronchoalveolar lavage, endobronchial ultrasound-guided transbronchial needle aspiration, transbronchial cryobiopsy, positron emission tomography and genetic evaluation are potential candidates to improve the diagnostic accuracy for granulomatous lung diseases. As granuloma alone is a nonspecific histopathological finding, the multidisciplinary approach is important for a confident diagnosis. A multidisciplinary approach is crucial for the accurate differential diagnosis of granulomatous lung diseaseshttp://ow.ly/FxsP30cebtf
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RNA-sequencing Identifies Novel Pathways in Sarcoidosis Monocytes. Sci Rep 2017; 7:2720. [PMID: 28577019 PMCID: PMC5457404 DOI: 10.1038/s41598-017-02941-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 04/25/2017] [Indexed: 12/21/2022] Open
Abstract
Sarcoidosis is a complex systemic granulomatous disorder of unknown etiology. Genome-wide association studies have not been able to explain a causative role for nucleotide variation in its pathogenesis. The goal of the present study was to identify the gene expression profile and the cellular pathways altered in sarcoidosis monocytes via RNA-sequencing. Peripheral blood monocytes play a role in sarcoidosis inflammation. Therefore, we determined and compared the transcriptional signature of monocytes from peripheral blood from sarcoidosis patients and healthy controls via RNA-sequencing. We found 2,446 differentially expressed (DE) genes between sarcoidosis and healthy control monocytes. Analysis of these DE genes showed enrichment for ribosome, phagocytosis, lysosome, proteasome, oxidative phosphorylation and metabolic pathways. RNA-sequencing identified upregulation of genes involved in phagocytosis and lysosomal pathway in sarcoidosis monocytes, whereas genes involved in proteasome degradation and ribosomal pathways were downregulated. Further studies are needed to investigate the role of specific genes involved in the identified pathways and their possible interaction leading to sarcoidosis pathology.
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34
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Wolin A, Lahtela EL, Anttila V, Petrek M, Grunewald J, van Moorsel CHM, Eklund A, Grutters JC, Kolek V, Mrazek F, Kishore A, Padyukov L, Pietinalho A, Ronninger M, Seppänen M, Selroos O, Lokki ML. SNP Variants in Major Histocompatibility Complex Are Associated with Sarcoidosis Susceptibility-A Joint Analysis in Four European Populations. Front Immunol 2017; 8:422. [PMID: 28469621 PMCID: PMC5395694 DOI: 10.3389/fimmu.2017.00422] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 03/24/2017] [Indexed: 12/14/2022] Open
Abstract
Sarcoidosis is a multiorgan inflammatory disorder with heritability estimates up to 66%. Previous studies have shown the major histocompatibility complex (MHC) region to be associated with sarcoidosis, suggesting a functional role for antigen-presenting molecules and immune mediators in the disease pathogenesis. To detect variants predisposing to sarcoidosis and to identify genetic differences between patient subgroups, we studied four genes in the MHC Class III region (LTA, TNF, AGER, BTNL2) and HLA-DRA with tag-SNPs and their relation to HLA-DRB1 alleles. We present results from a joint analysis of four study populations (Finnish, Swedish, Dutch, and Czech). Patients with sarcoidosis (n = 805) were further subdivided based on the disease activity and the presence of Löfgren’s syndrome. In a joint analysis, seven SNPs were associated with non-Löfgren sarcoidosis (NL; the strongest association with rs3177928, P = 1.79E−07, OR = 1.9) and eight with Löfgren’s syndrome [Löfgren syndrome (LS); the strongest association with rs3129843, P = 3.44E−12, OR = 3.4] when compared with healthy controls (n = 870). Five SNPs were associated with sarcoidosis disease course (the strongest association with rs3177928, P = 0.003, OR = 1.9). The high linkage disequilibrium (LD) between SNPs and an HLA-DRB1 challenged the result interpretation. When the SNPs and HLA-DRB1 alleles were analyzed together, independent association was observed for four SNPs in the HLA-DRA/BTNL2 region: rs3135365 (NL; P = 0.015), rs3177928 (NL; P < 0.001), rs6937545 (LS; P = 0.012), and rs5007259 (disease activity; P = 0.002). These SNPs act as expression quantitative trait loci (eQTL) for HLA-DRB1 and/or HLA-DRB5. In conclusion, we found novel SNPs in BTNL2 and HLA-DRA regions associating with sarcoidosis. Our finding further establishes that polymorphisms in the HLA-DRA and BTNL2 have a role in sarcoidosis susceptibility. This multi-population study demonstrates that at least a part of these associations are HLA-DRB1 independent (e.g., not due to LD) and shared across ancestral origins. The variants that were independent of HLA-DRB1 associations acted as eQTL for HLA-DRB1 and/or -DRB5, suggesting a role in regulating gene expression.
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Affiliation(s)
- Annika Wolin
- Transplantation Laboratory, Medicum, University of Helsinki, Helsinki, Finland
| | - Elisa Laura Lahtela
- Transplantation Laboratory, Medicum, University of Helsinki, Helsinki, Finland
| | - Verneri Anttila
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Martin Petrek
- Department of Pathological Physiology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Johan Grunewald
- Respiratory Medicine Unit, Department of Medicine Solna and CMM, Karolinska Institutet, Karolinska University Hospital, Solna, Sweden
| | - Coline H M van Moorsel
- Department of Pulmonology, St. Antonius Hospital Nieuwegein, Heart and Lung Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Anders Eklund
- Respiratory Medicine Unit, Department of Medicine Solna and CMM, Karolinska Institutet, Karolinska University Hospital, Solna, Sweden
| | - Jan C Grutters
- Department of Pulmonology, St. Antonius Hospital Nieuwegein, Heart and Lung Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Vitezslav Kolek
- Department of Respiratory Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Frantisek Mrazek
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Amit Kishore
- Department of Pathological Physiology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Leonid Padyukov
- Rheumatology Unit, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | | | - Marcus Ronninger
- Respiratory Medicine Unit, Department of Medicine Solna and CMM, Karolinska Institutet, Karolinska University Hospital, Solna, Sweden
| | - Mikko Seppänen
- Rare Disease Center, Children's Hospital and Adult Immunodeficiency Unit, Inflammation Center, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | | | - Marja-Liisa Lokki
- Transplantation Laboratory, Medicum, University of Helsinki, Helsinki, Finland
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Pacheco Y, Calender A, Israël-Biet D, Roy P, Lebecque S, Cottin V, Bouvry D, Nunes H, Sève P, Pérard L, Devouassoux G, Freymond N, Khouatra C, Wallaert B, Lamy R, Elsensohn MH, Bardel C, Valeyre D. Familial vs. sporadic sarcoidosis: BTNL2 polymorphisms, clinical presentations, and outcomes in a French cohort. Orphanet J Rare Dis 2016; 11:165. [PMID: 27914482 PMCID: PMC5135764 DOI: 10.1186/s13023-016-0546-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 11/21/2016] [Indexed: 02/07/2023] Open
Abstract
Background The occurrence of familial forms of sarcoidosis (OMIM 181100) suggests a genetic predisposition. The involvement of butyrophilin-like 2 (BTNL2) gene (rs2076530 variant) has to be investigated. Results The study performed independent analyses of BTNL2 polymorphism, clinical phenotypes, and outcomes in familial vs. sporadic presentations in 256 sporadic and 207 familial cases from 140 families. The logistic multivariate model showed that a young age at diagnosis and the combination of lung and skin involvement at diagnosis may distinguish sporadic from familial sarcoidosis (p = 0.016 and p = 0.041). We observed also that Sarcoid Clinical Activity Classification (SCAC) profiles were significantly different between familial and sporadic cases (p = 0.0497). Variant rs2076530 was more frequent in patients than in controls (OR = 2.02; 95% CI: [1.32–3.09]) but showed no difference between sporadic and familial cases and no difference according to the clinical phenotype or the outcome. Conclusion Despite a significant difference in BTNL2 polymorphism between sarcoid patients and controls, there was no such difference between familial and sporadic sarcoidosis cases and no correlation between BTNL2 polymorphism and disease severity or outcome. Thus, BTNL2 difference cannot be considered as a key marker for disease classification or patient management.
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Affiliation(s)
- Yves Pacheco
- Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Université Claude Bernard - Lyon 1, EA-7426, Lyon, France. .,Université Claude Bernard Lyon 1 - EA-7426, 165 Chemin du Grand Revoyet, F-69495, Pierre Benite, France.
| | - Alain Calender
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Plateforme de génétique moléculaire, CR-21076, Université Claude Bernard - Lyon 1, INSERM U1052, Lyon, France
| | - Dominique Israël-Biet
- AP-HP, Hôpital Européen Georges Pompidou, Service de Pneumologie, Centre de Compétence des maladies pulmonaires rares, Université René Descartes - Paris 5, Paris, France
| | - Pascal Roy
- Hospices Civils de Lyon, Service de Biostatistique, Université Claude Bernard - Lyon 1, CNRS UMR 5558, Lyon, France
| | - Serge Lebecque
- Hospices Civils de Lyon, Hôpital Lyon-Sud, Université Claude Bernard - Lyon1, INSERM U1052 - CNRS UMR5286, Lyon, France
| | - Vincent Cottin
- Hospices Civils de Lyon, Hôpital Louis Pradel, Université Claude Bernard - Lyon 1, UMR 754, Lyon, France
| | - Diane Bouvry
- AP-HP, Hôpital Avicenne, Université Paris13, EA2363, COMUE Sorbonne Paris Cité, Paris, France
| | - Hilario Nunes
- AP-HP, Hôpital Avicenne, Université Paris13, EA2363, COMUE Sorbonne Paris Cité, Paris, France
| | - Pascal Sève
- Hospices Civils de Lyon, Hôpital Croix-Rousse, Université Claude Bernard - Lyon 1, Lyon, France
| | - Laurent Pérard
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Université Claude Bernard - Lyon 1, Lyon, France
| | - Gilles Devouassoux
- Hospices Civils de Lyon, Hôpital Croix-Rousse, Université Claude Bernard - Lyon 1, Lyon, France
| | - Nathalie Freymond
- Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Université Claude Bernard - Lyon 1, EA-7426, Lyon, France
| | - Chahira Khouatra
- Hospices Civils de Lyon, Hôpital Louis Pradel, Université Claude Bernard - Lyon 1, UMR 754, Lyon, France
| | - Benoît Wallaert
- Centre hospitalo-universitaire de Lille, Service de Pneumologie et Immunoallergologie, Centre de Compétence Maladies Pulmonaires Rares, Université Lille 2, Lille, France
| | - Raphaelle Lamy
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Plateforme de génétique moléculaire, CR-21076, Université Claude Bernard - Lyon 1, INSERM U1052, Lyon, France
| | - Mad-Hélénie Elsensohn
- Hospices Civils de Lyon, Service de Biostatistique, Université Claude Bernard - Lyon 1, CNRS UMR 5558, Lyon, France
| | - Claire Bardel
- Hospices Civils de Lyon, Service de Biostatistique, Université Claude Bernard - Lyon 1, CNRS UMR 5558, Lyon, France
| | - Dominique Valeyre
- AP-HP, Hôpital Avicenne, Université Paris13, EA2363, COMUE Sorbonne Paris Cité, Paris, France
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Bioinformatics analysis of gene expression profile data to screen key genes involved in pulmonary sarcoidosis. Gene 2016; 596:98-104. [PMID: 27682024 DOI: 10.1016/j.gene.2016.09.037] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 08/29/2016] [Accepted: 09/24/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND Sarcoidosis is a multisystemic inflammatory and granulomatous disease that occurs in almost all populations and affects multiple organs. Meanwhile, its most common manifestation is pulmonary sarcoidosis. This study aimed to identify effective biomarkers for the diagnosis and therapy of pulmonary sarcoidosis. METHODS GSE16538 was downloaded from Gene Expression Omnibus, including 6 pulmonary sarcoidosis samples and 6 normal lung samples. Then, differentially expressed genes (DEGs) were identified by limma package in R. After the expression values of the DEGs were extracted, hierarchical clustering analysis was performed for the DEGs using the pheatmap package in R. Subsequently, protein-protein interaction (PPI) pairs among the DEGs were searched by STRING or REACTOME databases, and then PPI networks were visualized by Cytoscape software. Using DAVID and KOBAS, functional and pathway enrichment analyses separately were performed for the DEGs involved in the PPI network. RESULTS Total 208 DEGs were identified in pulmonary sarcoidosis samples, including 179 up-regulated genes and 29 down-regulated genes. Hierarchical clustering showed that the DEGs could clearly distinguish the pulmonary sarcoidosis samples from the normal lung samples. In the PPI network constructed by STRING database, CXCL9, STAT1, CCL5, CXCL11 and GBP1 had higher degrees and betweenness values, and could interact with each other. Functional enrichment showed that CXCL9, CXCL11 and CCL5 were enriched in immune response. Moreover, STAT1 was enriched in pathways of chemokine signaling pathway and JAK-STAT signaling pathway. CONCLUSION CXCL9, CXCL11, STAT1, CCL5 and GBP1 might be implicated in pulmonary sarcoidosis through interacting with each other.
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Tong X, Ma Y, Niu X, Yan Z, Liu S, Peng B, Peng S, Fan H. The BTNL2 G16071A gene polymorphism increases granulomatous disease susceptibility: A meta-analysis including FPRP test of 8710 participants. Medicine (Baltimore) 2016; 95:e4325. [PMID: 27472712 PMCID: PMC5265849 DOI: 10.1097/md.0000000000004325] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE The butyrophilin-like 2 (BTNL2) G16071A gene polymorphism has been implicated in the susceptibility to granulomatous diseases, but the results were inconclusive. The objective of the current study was to precisely explore the relationship between BTNL2 G16071A gene polymorphism and granulomatous disease susceptibility by the meta-analysis including false-positive report probability (FPRP) test. METHODS A systematic literature search in the PubMed, Embase, and Wanfang databases, China National Knowledge Internet, and commercial Internet search engines was conducted to identify studies published up to April 1, 2016. The odds ratio (OR) with 95% confidence interval (CI) was used to assess the effect size. Statistical analysis was conducted using the STATA 12.0 software and FPRP test sheet. RESULTS In total, all 4324 cases and 4386 controls from 14 eligible studies were included in the current meta-analysis. By the overall meta-analysis, we found a significant association between BTNL2 G16071A gene polymorphism and granulomatous disease susceptibility (A vs G: OR = 1.25, 95% CI = 1.07-1.45, P = 0.005). The meta-regression analyses showed that a large proportion of the between-study heterogeneity was significantly attributed to the ethnicity (A vs G, P = 0.013) and the types of granulomatous diseases (A vs G, P = 0.002). By the subgroup meta-analysis, the BTNL2 G16071A gene polymorphism was associated with granulomatous disease susceptibility in Caucasians (A vs G: OR = 1.37, 95% CI = 1.18-1.58, P < 0.001). Moreover, a significant relationship between the BTNL2 G16071A gene polymorphism and sarcoidosis susceptibility (A vs G: OR = 1.52, 95% CI = 1.39-1.66, P < 0.001) was found. However, to avoid the "false-positive report," we further investigated the significant associations observed in the present meta-analysis by the FPRP test. Interestingly, the results of FPRP test indicated that the BTNL2 G16071A gene polymorphism was truly associated with sarcoidosis susceptibility (A vs G, FPRP < 0.001). Additionally, the FPRP test confirmed that the BTNL2 G16071A gene polymorphism was associated only with granulomatous disease susceptibility among Caucasians (A vs G, FPRP < 0.001) at the level of a prior probability, which was 0.001. CONCLUSION The meta-analysis indicated that BTNL2 G16071A gene polymorphism may as a likelihood factor contributed to granulomatous disease susceptibility, especially increasing the sarcoidosis susceptibility. In addition, the polymorphism may be greatly associated with likelihood of granulomatous diseases among Caucasians.
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Affiliation(s)
- Xiang Tong
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan
| | - Yao Ma
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan
| | - Xundong Niu
- Department of Endocrinology, The Second Affiliated Hospital of Ningxia Medical University, Yinchuan, Ningxia
| | - Zhipeng Yan
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan
| | - Sitong Liu
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan
| | - Bo Peng
- Department of Internal Medicine, Leshan Traditional Chinese Medicine Hospital, Leshan, Sichuan, China
| | - Shifeng Peng
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan
| | - Hong Fan
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan
- Correspondence: Hong Fan, Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Guoxuexiang 37, Chengdu, Sichuan 610041, China (e-mail: fanhongfanscu@.sina.cn, )
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Ghrenassia E, Mekinian A, Chapelon-Albric C, Levy P, Cosnes J, Sève P, Lefèvre G, Dhôte R, Launay D, Prendki V, Morell-Dubois S, Sadoun D, Mehdaoui A, Soussan M, Bourrier A, Ricard L, Benamouzig R, Valeyre D, Fain O. Digestive-tract sarcoidosis: French nationwide case-control study of 25 cases. Medicine (Baltimore) 2016; 95:e4279. [PMID: 27442665 PMCID: PMC5265782 DOI: 10.1097/md.0000000000004279] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 06/19/2016] [Accepted: 06/22/2016] [Indexed: 12/21/2022] Open
Abstract
Digestive tract sarcoidosis (DTS) is rare and case-series are lacking. In this retrospective case-control study, we aimed to compare the characteristics, outcome, and treatment of patients with DTS, nondigestive tract sarcoidosis (NDTS), and Crohn disease.We included cases of confirmed sarcoidosis, symptomatic digestive tract involvement, and noncaseating granuloma in any digestive tract. Each case was compared with 2 controls with sarcoidoisis without digestive tract involvement and 4 with Crohn disease.We compared 25 cases of DTS to 50 controls with NDTS and 100 controls with Crohn disease. The major digestive clinical features were abdominal pain (56%), weight loss (52%), nausea/vomiting (48%), diarrhea (32%), and digestive bleeding (28%). On endoscopy of DTS, macroscopic lesions were observed in the esophagus (9%), stomach (78%), duodenum (9%), colon, (25%) and rectum (19%). As compared with NDTS, DTS was associated with weight loss (odds ratio [OR] 5.8; 95% confidence interval [CI] 1.44-23.3) and the absence of thoracic adenopathy (OR 5.0; 95% CI 1.03-25). As compared with Crohn disease, DTS was associated with Afro-Caribbean origin (OR 27; 95% CI 3.6-204) and the absence of ileum or colon macroscopic lesions (OR 62.5; 95% CI 10.3-500). On the last follow-up, patients with DTS showed no need for surgery (versus 31% for patients with Crohn disease; P = 0.0013), and clinical digestive remission was frequent (76% vs. 35% for patients with Crohn disease; P = 0.0002).The differential diagnosis with Crohn disease could be an issue with DTS. Nevertheless, the 2 diseases often have different clinical presentation and outcome.
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Affiliation(s)
- Etienne Ghrenassia
- AP-HP, Hôpital Saint-Antoine, Sorbonne Universités, UPMC Université Paris 06, service de médecine interne and Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
| | - Arsene Mekinian
- AP-HP, Hôpital Saint-Antoine, Sorbonne Universités, UPMC Université Paris 06, service de médecine interne and Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
| | - Catherine Chapelon-Albric
- APHP, Hôpital Pitié-Salpétrière, Sorbonne Universités, UPMC Université Paris 06, service de médecine interne
| | - Pierre Levy
- APHP, Hôpital Tenon, Sorbonne Universités, UPMC Université Paris 06, Public health department
| | - Jacques Cosnes
- APHP, Hôpital Saint-Antoine, Sorbonne Universités, UPMC Université Paris 06, service de gastro-entérologie, Paris
| | - Pascal Sève
- Hôpital de la Croix-Rousse, Hospices Civils de Lyon, department of internal medicine, F-Lyon. University Claude Bernard Lyon 1, F-69100, Villeurbanne
| | | | - Robin Dhôte
- APHP, Hôpital Avicenne, service de médecine interne, université Paris 13, Bobigny, France
| | - David Launay
- Hôpital Claude Huriez, service de médecine interne, Lille, France
| | - Virginie Prendki
- Department of internal medicine, Division of internal medicine and rehabilitation, rehabilitation and geriatrics, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | | | - Danielle Sadoun
- APHP, Hôpital Avicenne, Université Paris 13, service de pneumologie, Bobigny
| | | | - Michael Soussan
- APHP, Hôpital Avicenne, Université Paris 13, service de médecine nucléaire
| | - Anne Bourrier
- APHP, Hôpital Saint-Antoine, Sorbonne Universités, UPMC Université Paris 06, service de gastro-entérologie, Paris
| | - Laure Ricard
- AP-HP, Hôpital Saint-Antoine, Sorbonne Universités, UPMC Université Paris 06, service de médecine interne and Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
| | - Robert Benamouzig
- APHP, Hôpital Avicenne, Université Paris 13, service de gastro-entérologie, Bobigny, France
| | - Dominique Valeyre
- APHP, Hôpital Avicenne, Université Paris 13, service de pneumologie, Bobigny
| | - Olivier Fain
- AP-HP, Hôpital Saint-Antoine, Sorbonne Universités, UPMC Université Paris 06, service de médecine interne and Inflammation-Immunopathology-Biotherapy Department (DHU i2B)
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Abstract
Current hypotheses on the pathogenesis of sarcoidosis assume that it is induced by a nondegradable antigen inducing immune reactions, which are mediated by a panel of immune cells of the innate and adoptive immune system. This immune reaction leads to an accumulation of immune cells that is mainly alveolar macrophages, T cells, and neutrophils in the lung. As the antigen persists and cannot be eliminated, the ongoing immune reaction results in granuloma formation and remodeling of the lung. The current review aims to elucidate the different roles of the cellular players in the immunopathogenesis of sarcoidosis.
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Wu J, Li Y, Guan W, Viken K, Perlman DM, Bhargava M. FCGR3A and FCGR3B copy number variations are risk factors for sarcoidosis. Hum Genet 2016; 135:715-25. [PMID: 27059607 DOI: 10.1007/s00439-016-1669-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 04/05/2016] [Indexed: 12/12/2022]
Abstract
Sarcoidosis is a multisystem granulomatous disorder that causes significant morbidity. Genetic factors contribute to sarcoidosis risks. In this study, we investigated whether copy number variations (CNVs) of FCGR3A (coding for FcγRIIIA) and FCGR3B (coding for FcγRIIIB) genes are associated with sarcoidosis susceptibility and whether the expressions of FcγRIIIA on NK cells and FcγRIIIB on neutrophils are altered in sarcoidosis patients. TaqMan real-time PCR assays were used to analyze the CNV of FCGR3A and FCGR3B genes. FCGR3A and FCGR3B CNV genotypes were compared between 671 biopsy-proven sarcoidosis patients and the same number of healthy controls matched with age, sex, race, and geographic area from the ACCESS (A Case Control Etiologic Study of Sarcoidosis) cohort. Flow cytometry analyses were used to determine expressions of FcγRIIIA on NK cells and FcγRIIIB on neutrophils in phenotype analyses. We found that FCGR3A CNVs were significantly associated with sarcoidosis in females (CN = 1 vs. CN = 2 logistic regression adjusted for sex and race, OR 4.0156, SE = 2.2784, P = 0.0143; CN = 3 vs. CN = 2 logistic regression adjusted for sex and race, OR 2.8044, SE = 1.1065, P = 0.0090), suggesting that FCGR3A gene abnormality influences sarcoidosis development in a gender-specific manner. Furthermore, FcγRIIIA expressions were significantly decreased on NK cells from sarcoidosis patients compared to those from healthy controls (P = 0.0007). Additionally, low FCGR3B CN was associated with sarcoidosis (CN <2 vs. CN = 2 logistic regression adjusted for sex and race, OR 1.5025, SE = 0.2682, P = 0.0226), indicating that the functions of FCGR3B gene may also contribute to the pathogenesis of sarcoidosis. We conclude that FCGR3A CNVs are a major risk factor for female sarcoidosis and FCGR3B CNVs may also affect the development of sarcoidosis.
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Affiliation(s)
- Jianming Wu
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, 235B AnSc/VetMed Bldg., 1988 Fitch Avenue, St. Paul, MN, 55108, USA.
| | - Yunfang Li
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, 235B AnSc/VetMed Bldg., 1988 Fitch Avenue, St. Paul, MN, 55108, USA
| | - Weihua Guan
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, USA
| | - Kevin Viken
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, School of Medicine, University of Minnesota, Minneapolis, USA
| | - David M Perlman
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, School of Medicine, University of Minnesota, Minneapolis, USA
| | - Maneesh Bhargava
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, School of Medicine, University of Minnesota, Minneapolis, USA
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Abstract
Sarcoidosis is a systemic inflammatory disorder characterised by tissue infiltration by mononuclear phagocytes and lymphocytes with associated non-caseating granuloma formation. Originally described as a disorder of the skin, sarcoidosis can involve any organ with wide-ranging clinical manifestations and disease course. Recent studies have provided new insights into the mechanisms involved in disease pathobiology, and we now know that sarcoidosis has a clear genetic basis largely involving human leukocyte antigen (HLA) genes. In contrast to Mendelian-monogenic disorders--which are generally due to specific and relatively rare mutations often leading to a single amino acid change in an encoded protein--sarcoidosis results from genetic variations relatively common in the general population and involving multiple genes, each contributing an effect of varying magnitude. However, an individual may have the necessary genetic profile and yet the disease will not develop unless an environmental or infectious factor is encountered. Genetics appears also to contribute to the huge variability in clinical phenotype and disease behaviour. Moreover, it has been established that sarcoidosis granulomatous inflammation is a highly polarized T helper 1 immune response that starts with an antigenic stimulus followed by T cell activation via a classic HLA class II-mediated pathway. A complex network of lymphocytes, macrophages, and cytokines is pivotal in the orchestration and evolution of the granulomatous process. Despite these advances, the aetiology of sarcoidosis remains elusive and its pathogenesis incompletely understood. As such, there is an urgent need for a better understanding of disease pathogenesis, which hopefully will translate into the development of truly effective therapies.
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Abstract
Sarcoidosis is a multisystem granulomatous disease of unknown etiology that most commonly affects the lungs. Treatment of sarcoidosis can be challenging as it is often difficult to measure disease activity and distinguish active inflammation from fibrosis. Identifying the inflammatory mediators in sarcoidosis has led to the development and use of novel therapeutic agents. The goal of pharmacotherapy is to decrease granuloma accumulation, ameliorate symptoms and improve organ function. Systemic corticosteroids remain the first line treatment. Other immunosuppressive agents may be considered for the patients who respond poorly to corticosteroids or who experience significant adverse effects. An overview of pharmacotherapy of sarcoidosis is provided here.
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Abstract
Sarcoidosis is a disease with highly variable presentation and progression; although it is hypothesized that disease phenotype is related to genetic variation, how much of this variability is driven by genetic factors is not known. The HLA region is the most strongly and consistently associated genetic risk factor for sarcoidosis, supporting the notion that sarcoidosis is an exposure-mediated immunologic disease. Most of the genetic etiology of sarcoidosis remains unknown in terms of the specific variants that increase risk in various populations, their biologic functions, and how they interact with environmental exposures.
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Affiliation(s)
| | - Nabeel Hamzeh
- Division of Environmental Occupational Health and Sciences, National Jewish Health, 1400 Jackson Street, Denver, CO 80206, USA; Division of Pulmonary and Critical Care Sciences, Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Lisa A Maier
- Division of Environmental Occupational Health and Sciences, National Jewish Health, 1400 Jackson Street, Denver, CO 80206, USA; Division of Pulmonary and Critical Care Sciences, Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
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Fischer A, Ellinghaus D, Nutsua M, Hofmann S, Montgomery CG, Iannuzzi MC, Rybicki BA, Petrek M, Mrazek F, Pabst S, Grohé C, Grunewald J, Ronninger M, Eklund A, Padyukov L, Mihailovic-Vucinic V, Jovanovic D, Sterclova M, Homolka J, Nöthen MM, Herms S, Gieger C, Strauch K, Winkelmann J, Boehm BO, Brand S, Büning C, Schürmann M, Ellinghaus E, Baurecht H, Lieb W, Nebel A, Müller-Quernheim J, Franke A, Schreiber S. Identification of Immune-Relevant Factors Conferring Sarcoidosis Genetic Risk. Am J Respir Crit Care Med 2015; 192:727-36. [PMID: 26051272 PMCID: PMC4595678 DOI: 10.1164/rccm.201503-0418oc] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 06/04/2015] [Indexed: 12/15/2022] Open
Abstract
RATIONALE Genetic variation plays a significant role in the etiology of sarcoidosis. However, only a small fraction of its heritability has been explained so far. OBJECTIVES To define further genetic risk loci for sarcoidosis, we used the Immunochip for a candidate gene association study of immune-associated loci. METHODS Altogether the study population comprised over 19,000 individuals. In a two-stage design, 1,726 German sarcoidosis cases and 5,482 control subjects were genotyped for 128,705 single-nucleotide polymorphisms using the Illumina Immunochip for the screening step. The remaining 3,955 cases, 7,514 control subjects, and 684 parents of affected offspring were used for validation and replication of 44 candidate and two established risk single-nucleotide polymorphisms. MEASUREMENTS AND MAIN RESULTS Four novel susceptibility loci were identified with genome-wide significance in the European case-control populations, located on chromosomes 12q24.12 (rs653178; ATXN2/SH2B3), 5q33.3 (rs4921492; IL12B), 4q24 (rs223498; MANBA/NFKB1), and 2q33.2 (rs6748088; FAM117B). We further defined three independent association signals in the HLA region with genome-wide significance, peaking in the BTNL2 promoter region (rs5007259), at HLA-B (rs4143332/HLA-B*0801) and at HLA-DPB1 (rs9277542), and found another novel independent signal near IL23R (rs12069782) on chromosome 1p31.3. CONCLUSIONS Functional predictions and protein network analyses suggest a prominent role of the drug-targetable IL23/Th17 signaling pathway in the genetic etiology of sarcoidosis. Our findings reveal a substantial genetic overlap of sarcoidosis with diverse immune-mediated inflammatory disorders, which could be of relevance for the clinical application of modern therapeutics.
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Affiliation(s)
- Annegret Fischer
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - David Ellinghaus
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Marcel Nutsua
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Sylvia Hofmann
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Courtney G. Montgomery
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma
| | | | - Benjamin A. Rybicki
- Department of Public Health Sciences, Henry Ford Hospital, Detroit, Michigan
| | - Martin Petrek
- Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Frantisek Mrazek
- Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | | | - Christian Grohé
- Department of Respiratory Medicine, Evangelische Lungenklinik Berlin-Buch, Berlin, Germany
| | - Johan Grunewald
- Respiratory Medicine Unit, Department of Medicine and CMM, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Marcus Ronninger
- Respiratory Medicine Unit, Department of Medicine and CMM, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Anders Eklund
- Respiratory Medicine Unit, Department of Medicine and CMM, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Leonid Padyukov
- Rheumatology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Dragana Jovanovic
- Thoracic Oncology and ILD Department, University Hospital of Pulmonology, Clinical Center of Serbia, Belgrade, Serbia
| | - Martina Sterclova
- Department of Respiratory Medicine, Thomayer Hospital and 1 Medical Faculty and
| | - Jiri Homolka
- 1st Lung Department, Prague General Hospital, Charles University, Prague, Czech Republic
| | - Markus M. Nöthen
- Institute of Human Genetics and
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Stefan Herms
- Institute of Human Genetics and
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
- Genomics Group, Medical Genetics, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Christian Gieger
- Institute of Epidemiology II and
- Research Unit of Molecular Epidemiology, Helmholtz Center Munich, Munich, Germany
| | - Konstantin Strauch
- Institute of Genetic Epidemiology and
- Institute of Medical Informatics, Biometry and Epidemiology and
| | - Juliane Winkelmann
- Institute of Human Genetics, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Human Genetics, MRI
- Department of Neurology, MRI, and
| | - Bernhard O. Boehm
- Department of Internal Medicine I, Ulm University Medical Centre, Ulm, Germany
- LKCMedicine, Nanyang Technological University, Singapore
- Imperial College London, London, United Kingdom
| | - Stephan Brand
- Department of Medicine II–Grosshadern, Ludwig-Maximilians-University, Munich, Germany
| | - Carsten Büning
- Department of Gastroenterology, Hepatology and Endocrinology, Charité, Campus Mitte, Berlin, Germany
| | | | - Eva Ellinghaus
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Hansjörg Baurecht
- Graduate School of Information Science in Health, Technische Universität München, Munich, Germany
- Department of Dermatology, Allergology, and Venerology, and
| | - Wolfgang Lieb
- Institute of Epidemiology and Popgen Biobank, Kiel University, Kiel, Germany; and
| | - Almut Nebel
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
| | | | - Andre Franke
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Stefan Schreiber
- Institute of Clinical Molecular Biology, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany
- Clinic of Internal Medicine I, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Lin Y, Wei J, Fan L, Cheng D. BTNL2 gene polymorphism and sarcoidosis susceptibility: a meta-analysis. PLoS One 2015; 10:e0122639. [PMID: 25849037 PMCID: PMC4388687 DOI: 10.1371/journal.pone.0122639] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 02/23/2015] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Butyrophilin-like 2 (BTNL2) rs2076530 gene polymorphism has been implicated in susceptibility to sarcoidosis. However, results from previous studies are not consistent. To assess the association of BTNL2 polymorphism and sarcoidosis susceptibility, a meta-analysis was performed. METHODS PubMed, Embase were searched for eligible case-control studies. Data were extracted and pooled odds ratios (OR) with 95% confidence intervals (CI) were calculated. RESULTS Ten studies involving a total of 3303 cases and 2514 controls were included in this meta-analysis. Combined data indicated that BTNL2 rs2076530 polymorphism was associated with sarcoidosis susceptibility in allelic model (A vs. G, OR = 1.59, 95%CI: 1.47-1.72), dominant model (AA + AG vs. GG, OR = 2.10, 95%CI: 1.67-2.65), and recessive model (AA vs. AG + GG, OR = 1.93, 95%CI: 1.49-2.50). CONCLUSIONS This meta-analysis indicates that BTNL2 rs2076530 polymorphism contributes to the risk of sarcoidosis.
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Affiliation(s)
- Yihua Lin
- Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Department of Respiratory Medicine, the First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Jia Wei
- Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Lili Fan
- Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Deyun Cheng
- Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
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Rubicz R, Yolken R, Alaedini A, Drigalenko E, Charlesworth JC, Carless MA, Severance EG, Krivogorsky B, Dyer TD, Kent JW, Curran JE, Johnson MP, Cole SA, Almasy L, Moses EK, Blangero J, Göring HHH. Genome-wide genetic and transcriptomic investigation of variation in antibody response to dietary antigens. Genet Epidemiol 2015; 38:439-46. [PMID: 24962563 DOI: 10.1002/gepi.21817] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 04/24/2014] [Accepted: 04/24/2014] [Indexed: 11/11/2022]
Abstract
Increased immunoglobulin G (IgG) response to dietary antigens can be associated with gastrointestinal dysfunction and autoimmunity. The underlying processes contributing to these adverse reactions remain largely unknown, and it is likely that genetic factors play a role. Here, we estimate heritability and attempt to localize genetic factors influencing IgG antibody levels against food-derived antigens using an integrative genomics approach. IgG antibody levels were determined by ELISA in >1,300 Mexican Americans for the following food antigens: wheat gliadin; bovine casein; and two forms of bovine serum albumin (BSA-a and BSA-b). Pedigree-based variance components methods were used to estimate additive genetic heritability (h(2) ), perform genome-wide association analyses, and identify transcriptional signatures (based on 19,858 transcripts from peripheral blood lymphocytes). Heritability estimates were significant for all traits (0.15-0.53), and shared environment (based on shared residency among study participants) was significant for casein (0.09) and BSA-a (0.33). Genome-wide significant evidence of association was obtained only for antibody to gliadin (P = 8.57 × 10(-8) ), mapping to the human leukocyte antigen II region, with HLA-DRA and BTNL2 as the best candidate genes. Lack of association of known celiac disease risk alleles HLA-DQ2.5 and -DQ8 with antigliadin antibodies in the studied population suggests a separate genetic etiology. Significant transcriptional signatures were found for all IgG levels except BSA-b. These results demonstrate that individual genetic differences contribute to food antigen antibody measures in this population. Further investigations may elucidate the underlying immunological processes involved.
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Affiliation(s)
- Rohina Rubicz
- Departent of Genetics, Texas Biomedical Research Institute, San Antonio, Texas, United States of America; Division of Public Health Sciences, Fred Hutchinson Cancer Research Institute, Seattle, Washington, United States of America
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Tana C, Wegener S, Borys E, Pambuccian S, Tchernev G, Tana M, Giamberardino MA, Silingardi M. Challenges in the diagnosis and treatment of neurosarcoidosis. Ann Med 2015; 47:576-91. [PMID: 26469296 DOI: 10.3109/07853890.2015.1093164] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The diagnosis and treatment of neurosarcoidosis can be very challenging for several reasons. It affects clinically 5%-10% of sarcoidosis patients, but can be found in up to 25% of autopsies. These data reveal that a high percentage of asymptomatic or misdiagnosed cases can be missed at an initial diagnostic approach. Clinical and imaging findings are often non-specific since they can be found in a large number of neurological disorders. Histopathology can also be confounding if not performed by an expert pathologist and not placed in an appropriate clinical context. In this review, we discuss clinical features, laboratory findings, imaging, and histology of neurosarcoidosis, and we report current evidence regarding drug therapy. We conclude that a correct diagnostic approach should include a multidisciplinary evaluation involving clinicians, radiologists, and pathologists and that future studies should evaluate the genetic signature of neurosarcoidosis as they could be helpful in the assessment of this uncommon disease. With head-to-head comparisons of medical treatment for neurosarcoidosis still lacking due to the rarity of the disease and an increasing number of immunomodulating therapies at hand, novel therapeutic approaches are to be expected within the next few years.
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Affiliation(s)
- Claudio Tana
- a Internal Medicine Unit , Guastalla Hospital, AUSL Reggio Emilia , Reggio Emilia , Italy
| | - Susanne Wegener
- b Department of Neurology , University Hospital Zurich and University of Zurich , Zurich , Switzerland
| | - Ewa Borys
- c Department of Pathology , Loyola University Medical Center and Stritch School of Medicine, Loyola University Chicago , Maywood , Illinois , USA
| | - Stefan Pambuccian
- c Department of Pathology , Loyola University Medical Center and Stritch School of Medicine, Loyola University Chicago , Maywood , Illinois , USA
| | - Georgi Tchernev
- d Polyclinic for Dermatology and Venereology and Medical Faculty , University Hospital Lozenetz and Sofia University , Sofia , Bulgaria
| | - Marco Tana
- e Department of Medicine and Science of Aging , "G. d'Annunzio" University , Chieti , Italy
| | | | - Mauro Silingardi
- a Internal Medicine Unit , Guastalla Hospital, AUSL Reggio Emilia , Reggio Emilia , Italy
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Abstract
Sarcoidosis is a multifactorial and polygenic disorder. The current knowledge of its genetic basis will be presented and functional consequences of the genetic variants that influence the immunopathogenesis of this disorder will be depicted. In the near future it is expected that this knowledge will yield clinically applicable genetic risk profiles.
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50
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Delaveri A, Rapti A, Poulou M, Fylaktou E, Tsipi M, Roussos C, Makrythanasis P, Kanavakis E, Tzetis M. BTNL2 gene SNPs as a contributing factor to sarcoidosis pathogenesis in a cohort of Greek patients. Meta Gene 2014; 2:619-30. [PMID: 25606445 PMCID: PMC4287805 DOI: 10.1016/j.mgene.2014.07.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 07/08/2014] [Accepted: 07/11/2014] [Indexed: 12/13/2022] Open
Abstract
Sarcoidosis is a multisystemic granulomatous disease of unknown etiology that primarily affects adults between the ages of 20 and 40 years old. It is characterized by the activation of Th1 lymphocytes resulting in the production of inflammatory cytokines and the formation of noncaseating epithelioid cell granulomas in affected tissues. The lungs and lymphatic system are the ones most frequently affected. The disease usually presents spontaneous remission in the first two years and, in a few patients, the disease progresses to pulmonary fibrosis or other fatal complications depending on the affected organ. The pathogenesis of sarcoidosis is still not clearly defined, and is considered an interaction between the environment and risk alleles in many genes. The present case control study consisted of 146 Greek patients with sarcoidosis and 90 healthy volunteers from the same ethnic group. The coding and neighboring intronic regions of the BTNL2 gene were sequenced and risk alleles were compared amongst the two groups. Thirty-seven different variants were detected from which 12 were synonymous substitutions and 25 non-synonymous. With the help of in silico tools (SIFT, PolyPhen, PROVEAN, PMut and EX_SKIP), 13 variants were classified as possible pathological risk variants including 4 novel ones. The most common risk variants contributing to phenotypic modulation of sarcoidosis were p.S360G and p.S334L, with the latter contributing to a more severe disease stage with extra-pulmonary manifestations such as skin granulomas and relapses being more common. Thirteen pathological risk variants were discovered in BTNL2 gene in sarcoidosis patients. The common risk variant p.S360G was found in cases (37.67%) and controls (30%). The 2nd most common variant p.S334L was found in cases (16.43%) and controls (12.22%). Six novel variants were detected with 4 deemed pathological. Coinheritance of common and novel variants affected the final clinical phenotype.
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Affiliation(s)
- Aikaterini Delaveri
- Department of Medical Genetics, Medical School, University of Athens, Greece
| | - Aggeliki Rapti
- 2nd Department of Respiratory Medicine, Sotiria Chest Diseases Hospital, Athens, Greece
| | - Myrto Poulou
- Department of Medical Genetics, Medical School, University of Athens, Greece
| | - Eirini Fylaktou
- Department of Medical Genetics, Medical School, University of Athens, Greece
| | - Maria Tsipi
- Department of Medical Genetics, Medical School, University of Athens, Greece
| | - Charis Roussos
- 2nd Department of Respiratory Medicine, Sotiria Chest Diseases Hospital, Athens, Greece
| | - Periklis Makrythanasis
- Department of Medical Genetics, Medical School, University of Athens, Greece ; Department of Genetic Medicine and Development, University of Geneva, Switzerland
| | - Emmanuel Kanavakis
- Department of Medical Genetics, Medical School, University of Athens, Greece ; Research Institute for the Study of Genetic and Malignant Disorders in Childhood, "Aghia Sophia, Children's Hospital," Athens, Greece
| | - Maria Tzetis
- Department of Medical Genetics, Medical School, University of Athens, Greece
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