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Mukherjee T, Kumar N, Chawla M, Philpott DJ, Basak S. The NF-κB signaling system in the immunopathogenesis of inflammatory bowel disease. Sci Signal 2024; 17:eadh1641. [PMID: 38194476 DOI: 10.1126/scisignal.adh1641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 12/11/2023] [Indexed: 01/11/2024]
Abstract
Inflammatory bowel disease (IBD) is an idiopathic, chronic condition characterized by episodes of inflammation in the gastrointestinal tract. The nuclear factor κB (NF-κB) system describes a family of dimeric transcription factors. Canonical NF-κB signaling is stimulated by and enhances inflammation, whereas noncanonical NF-κB signaling contributes to immune organogenesis. Dysregulation of NF-κB factors drives various inflammatory pathologies, including IBD. Signals from many immune sensors activate NF-κB subunits in the intestine, which maintain an equilibrium between local microbiota and host responses. Genetic association studies of patients with IBD and preclinical mouse models confirm the importance of the NF-κB system in host defense in the gut. Other studies have investigated the roles of these factors in intestinal barrier function and in inflammatory gut pathologies associated with IBD. NF-κB signaling modulates innate and adaptive immune responses and the production of immunoregulatory proteins, anti-inflammatory cytokines, antimicrobial peptides, and other tolerogenic factors in the intestine. Furthermore, genetic studies have revealed critical cell type-specific roles for NF-κB proteins in intestinal immune homeostasis, inflammation, and restitution that contribute to the etiopathology of IBD-associated manifestations. Here, we summarize our knowledge of the roles of these NF-κB pathways, which are activated in different intestinal cell types by specific ligands, and their cross-talk, in fueling aberrant intestinal inflammation. We argue that an in-depth understanding of aberrant immune signaling mechanisms may hold the key to identifying predictive or prognostic biomarkers and developing better therapeutics against inflammatory gut pathologies.
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Affiliation(s)
- Tapas Mukherjee
- Systems Immunology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Naveen Kumar
- Systems Immunology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Meenakshi Chawla
- Systems Immunology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Dana J Philpott
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Soumen Basak
- Systems Immunology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
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Foerster EG, Tsang DKL, Goyal S, Robertson SJ, Robert LM, Maughan H, Streutker CJ, Girardin SE, Philpott DJ. ATG16L1 protects from interferon-γ-induced cell death in the small intestinal crypt. Mucosal Immunol 2023; 16:135-152. [PMID: 36792009 DOI: 10.1016/j.mucimm.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/15/2023]
Abstract
The breakdown of the intestinal mucosal barrier is thought to underlie the progression to Crohn disease (CD), whereby numerous risk factors contribute. For example, a genetic polymorphism of the autophagy gene ATG16L1, associated with an increased risk of developing CD, contributes to the perturbation of the intestinal epithelium. We examined the role of Atg16l1 in protecting the murine small intestinal epithelium from T-cell-mediated damage using the anti-CD3 model of enteropathy. Our work showed that mice specifically deleted for Atg16l1 in intestinal epithelial cells (IECs) (Atg16l1ΔIEC) had exacerbated intestinal damage, characterized by crypt epithelial cell death, heightened inflammation, and decreased survival. Moreover, Atg16l1 deficiency delayed the recovery of the intestinal epithelium, and Atg16l1-deficient IECs were impaired in their proliferative response. Pathology was largely driven by interferon (IFN)-γ signaling in Atg16l1ΔIEC mice. Mechanistically, although survival was rescued by blocking tumor necrosis factor or IFN-γ independently, only anti-IFN-γ treatment abrogated IEC death in Atg16l1ΔIEC mice, thereby decoupling IEC death and survival. In summary, our findings suggest differential roles for IFN-γ and tumor necrosis factor in acute enteropathy and IEC death in the context of autophagy deficiency and suggest that IFN-γ-targeted therapy may be appropriate for patients with CD with variants in ATG16L1.
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Affiliation(s)
| | - Derek K L Tsang
- Department of Immunology, University of Toronto, Toronto, Canada
| | - Shawn Goyal
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | | | - Lukian M Robert
- Department of Immunology, University of Toronto, Toronto, Canada
| | | | - Catherine J Streutker
- Department of Laboratory Medicine, St. Michael's Hospital, Unity Health, Toronto, Canada
| | - Stephen E Girardin
- Department of Immunology, University of Toronto, Toronto, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Dana J Philpott
- Department of Immunology, University of Toronto, Toronto, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.
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Magro F, Sottomayor C, Alves C, Santiago M, Ministro P, Lago P, Correia L, Gonçalves R, Carvalho D, Portela F, Dias CC, Dignass A, Danese S, Peyrin-Biroulet L, Estevinho MM, Leão Moreira P. Composite outcomes in observational studies of Crohn's disease: a systematic review and meta-analysis. Therap Adv Gastroenterol 2022; 15:17562848221092754. [PMID: 35601803 PMCID: PMC9118904 DOI: 10.1177/17562848221092754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 03/18/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND This systematic review and meta-analysis aims to assess composite and aggregate outcomes of observational studies in Crohn's disease and to evaluate whether the number and type of variables included affect the frequency of the outcome. METHODS MEDLINE [via PubMed], Scopus and Web of Science were searched to identify observational studies that enrolled patients with Crohn's disease and evaluated a composite or aggregate outcome. The proportion of patients achieving the outcome was determined and a random-effects meta-analysis was performed to evaluate how the frequency of each outcome varies according to the reporting of predefined variables. RESULTS From 10,257 identified records, 46 were included in the qualitative analysis and 38 in the meta-analysis. The frequency for composite and aggregate outcomes was 0.445 [95% confidence interval (CI): 0.389-0.501] and 0.140 (95% CI: 0.000-0.211), respectively. When comparing composite outcomes by number of included variables, the frequency was 0.271 (95% CI: 0.000-0.405) and 0.698 (95% CI: 0.651-0.746), for one and six variables, respectively. The frequency of the composite outcome varied according to the identity of the variables being reported. Specific pairs of predefined variables had a significant effect in the frequency of composite outcomes. CONCLUSION Composite outcomes with increasing number of predefined variables show an increase in frequency. Outcomes including variables such as 'Surgery' and 'Steroids' had higher frequencies when compared with the ones that did not include these variables. These results show that the frequency of composite outcomes is dependent on the number and type of variables being reported.
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Affiliation(s)
| | | | - Catarina Alves
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Mafalda Santiago
- Center for Health Technology and Services Research (CINTESIS), Porto, Portugal
| | - Paula Ministro
- Department of Gastroenterology, Tondela-Viseu Hospital Centre, Viseu, Portugal
| | - Paula Lago
- Department of Gastroenterology, Santo António University Hospital Center (CHUPorto), Porto, Portugal
| | - Luís Correia
- Department of Gastroenterology, Lisbon North Hospital Centre, Santa Maria Hospital, Lisbon, Portugal
| | | | - Diana Carvalho
- Department of Gastroenterology, Santo António dos Capuchos Hospital at Centro Hospitalar Lisboa Central, Lisboa, Portugal
| | - Francisco Portela
- Department of Gastroenterology, University Hospital Centre of Coimbra, Coimbra, Portugal
| | - Cláudia Camila Dias
- Center for Health Technology and Services Research (CINTESIS), Porto, Portugal,Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Axel Dignass
- Department of Medicine I, Agaplesion Markus Hospital, Frankfurt, Germany
| | - Silvio Danese
- Department of Biomedical Sciences, Humanitas University, Milan, Italy,Inflammatory Bowel Disease (IBD) Center, Department of Gastroenterology, Humanitas Clinical and Research Center (IRCCS), Milan, Italy
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology and Inserm NGERE U1256, University Hospital of Nancy, University of Lorraine, Vandoeuvre-lès-Nancy, France
| | - Maria Manuela Estevinho
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal,Department of Gastroenterology, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Paula Leão Moreira
- Department of Clinical Pharmacology, São João University Hospital Center (CHUSJ), Porto, Portugal
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Krovi SH, Kuchroo VK. Activation pathways that drive CD4 + T cells to break tolerance in autoimmune diseases . Immunol Rev 2022; 307:161-190. [PMID: 35142369 PMCID: PMC9255211 DOI: 10.1111/imr.13071] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 12/11/2022]
Abstract
Autoimmune diseases are characterized by dysfunctional immune systems that misrecognize self as non-self and cause tissue destruction. Several cell types have been implicated in triggering and sustaining disease. Due to a strong association of major histocompatibility complex II (MHC-II) proteins with various autoimmune diseases, CD4+ T lymphocytes have been thoroughly investigated for their roles in dictating disease course. CD4+ T cell activation is a coordinated process that requires three distinct signals: Signal 1, which is mediated by antigen recognition on MHC-II molecules; Signal 2, which boosts signal 1 in a costimulatory manner; and Signal 3, which helps to differentiate the activated cells into functionally relevant subsets. These signals are disrupted during autoimmunity and prompt CD4+ T cells to break tolerance. Herein, we review our current understanding of how each of the three signals plays a role in three different autoimmune diseases and highlight the genetic polymorphisms that predispose individuals to autoimmunity. We also discuss the drawbacks of existing therapies and how they can be addressed to achieve lasting tolerance in patients.
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Affiliation(s)
- Sai Harsha Krovi
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Vijay K Kuchroo
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
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Friedrich V, Forné I, Matzek D, Ring D, Popper B, Jochum L, Spriewald S, Straub T, Imhof A, Krug A, Stecher B, Brocker T. Helicobacter hepaticus is required for immune targeting of bacterial heat shock protein 60 and fatal colitis in mice. Gut Microbes 2022; 13:1-20. [PMID: 33550886 PMCID: PMC7889221 DOI: 10.1080/19490976.2021.1882928] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Gut microbiota and the immune system are in constant exchange shaping both host immunity and microbial communities. Here, improper immune regulation can cause inflammatory bowel disease (IBD) and colitis. Antibody therapies blocking signaling through the CD40-CD40L axis showed promising results as these molecules are deregulated in certain IBD patients. To better understand the mechanism, we used transgenic DC-LMP1/CD40 animals with a constitutive CD40-signal in CD11c+ cells, causing a lack of intestinal CD103+ dendritic cells (DCs) and failure to induce regulatory T (iTreg) cells. These mice rapidly develop spontaneous fatal colitis, accompanied by dysbiosis and increased inflammatory IL-17+IFN-γ+ Th17/Th1 and IFN-γ + Th1 cells. In the present study, we analyzed the impact of the microbiota on disease development and detected elevated IgA- and IgG-levels in sera from DC-LMP1/CD40 animals. Their serum antibodies specifically bound intestinal bacteria, and by proteome analysis, we identified a 60 kDa chaperonin GroEL (Hsp60) from Helicobacter hepaticus (Hh) as the main specific antigen targeted in the absence of iTregs. When re-derived to a different Hh-free specific-pathogen-free (SPF) microbiota, mice showed few signs of disease, normal microbiota, and no fatality. Upon recolonization of mice with Hh, the disease developed rapidly. Thus, the present work identifies GroEL/Hsp60 as a major Hh-antigen and its role in disease onset, progression, and outcome in this colitis model. Our results highlight the importance of CD103+ DC- and iTreg-mediated immune tolerance to specific pathobionts to maintain healthy intestinal balance.
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Affiliation(s)
- Verena Friedrich
- Institute for Immunology, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Ignasi Forné
- Protein Analysis Unit, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Dana Matzek
- Core Facility Animal Models, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Diana Ring
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, LMU Munich, Munich, Germany
| | - Bastian Popper
- Core Facility Animal Models, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Lara Jochum
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, LMU Munich, Munich, Germany
| | - Stefanie Spriewald
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, LMU Munich, Munich, Germany
| | - Tobias Straub
- Core Facility Bioinformatics, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Axel Imhof
- Protein Analysis Unit, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Anne Krug
- Institute for Immunology, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Bärbel Stecher
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, LMU Munich, Munich, Germany,German Center for Infection Research (DZIF), Partner Site, Munich, Germany
| | - Thomas Brocker
- Institute for Immunology, BioMedical Center, Faculty of Medicine, LMU Munich, Munich, Germany,CONTACT Thomas Brocker Institute for Immunology, BioMedical Center, Faculty of Medicine, LMU Munich, Munich82152, Germany
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Orsini Delgado ML, Sambuelli A, Negreira S, Gil A, D Elia L, Smaldini PL, Docena GH. Volcanic ash-driven worsening of mucosal inflammation in an experimental colitis model. Environ Pollut 2022; 292:118351. [PMID: 34637830 DOI: 10.1016/j.envpol.2021.118351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
Particulate matter exposure and related chemical changes in drinking water have been associated with health problems and inflammatory disorders. This study aimed to examine the effect of orally administered ash-water dilution on the gut of mice under normal and inflammatory conditions. Balb/c mice received ash-released soluble and dust-suspended components in the drinking water for 14 days. On day 7, animals were intrarectally instilled with TNBS in ethanol or flagellin from Salmonella typhimurium in PBS. At sacrifice, colon segments were collected and histologic damage, mRNA expression and cytokine levels in tissue were evaluated. In addition, these parameters were also evaluated in IL-10 null mice. We found that mice that received 5% w. fine-ash dilution in the drinking water worsened colitis signs. Weight loss, shortening of the colon, tissue edema with mucosa and submucosa cell infiltration and production of pro-inflammatory cytokines and chemokines were enhanced compared to control mice. A more pronounced inflammation was observed in IL-10 null mice. In addition, markers of NLRP3-dependent inflammasome activation were found in animals exposed to ash. In conclusion, ingestion of contaminated water with dust-suspended particulate matter enhanced the inflammatory response in the gut, probably due to alteration of the gut barrier and promoting an intense contact with the luminal content. This study critically appraises the response for fine particulate matter in uncommon illnesses reported for volcanic ash pollution. We suggest actions to enable better prediction and assessment the health impacts of volcanic eruptions.
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Affiliation(s)
- María Lucía Orsini Delgado
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), CONICET y Universidad Nacional de La Plata, La Plata, Argentina.
| | - Alicia Sambuelli
- Servicio de Enfermedades Inflamatorias, Hospital de Gastroenterología Bonorino Udaondo, Buenos Aires, Argentina.
| | - Silvia Negreira
- Servicio de Enfermedades Inflamatorias, Hospital de Gastroenterología Bonorino Udaondo, Buenos Aires, Argentina.
| | - Anibal Gil
- Servicio de Enfermedades Inflamatorias, Hospital de Gastroenterología Bonorino Udaondo, Buenos Aires, Argentina.
| | - Leandro D Elia
- Centro de Investigaciones Geológicas (CIG), CONICET y Universidad Nacional de La Plata, La Plata, Argentina.
| | - Paola L Smaldini
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), CONICET y Universidad Nacional de La Plata, La Plata, Argentina.
| | - Guillermo H Docena
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), CONICET y Universidad Nacional de La Plata, La Plata, Argentina.
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Huang J, Zheng Y, Ma J, Ma J, Lu M, Ma X, Wang F, Tang X. Exploration of the Potential Mechanisms of Wumei Pill for the Treatment of Ulcerative Colitis by Network Pharmacology. Gastroenterol Res Pract 2021; 2021:4227668. [PMID: 34970312 DOI: 10.1155/2021/4227668] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/09/2021] [Indexed: 12/17/2022] Open
Abstract
Background Wumei pill (WMP) has a long history of colitis treatment in China, but the protective mechanisms have not been elucidated. To uncover the potential mechanisms of WMP against ulcerative colitis (UC), the network pharmacology approach was utilized in this study. Methods Public databases were utilized to identify the potential targets of WMP and genes related to UC. Based on the identified overlapping common targets, drug-ingredient-target gene network, Gene Ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and protein-protein interaction (PPI) analysis were conducted. Molecular docking was carried out to verify the selected key active ingredients and core targets. Results 129 active ingredients and 622 target genes were obtained. The drug-ingredient-target gene network revealed 52 active ingredients of WMP acting on 73 targets related to UC. GO analysis revealed that biological processes were mainly associated with oxidative stress, such as, reactive oxygen species metabolic processes, response to oxidative stress, cellular response to oxidative stress, response to reactive oxygen species, and regulation of reactive oxygen species metabolic processes. KEGG analysis revealed that the immune- and inflammation-related pathways, tumor-related signaling pathways, and microbial infection-related signaling pathways were the most significant. PPI network identified 13 core target genes. The molecular docking results indicated the formation of stable bonds between the active ingredients and core target genes. Conclusions The approach of network pharmacology reveals the key ingredients, potential core targets, and biological process of WMP in the treatment of UC. The mechanisms of action of WMP involve anti-inflammation, antioxidation, and modulation of immunity, which provides evidence for the therapeutic role of WMP in UC.
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Gopi B, Vir Singh R, Kumar S, Kumar S, Chauhan A, Sonwane A, Kumar A, Bharati J, Vir Singh S. Effect of selected single nucleotide polymorphisms in SLC11A1, ANKRA2, IFNG and PGLYRP1 genes on host susceptibility to Mycobacterium avium subspecies paratuberculosis infection in Indian cattle. Vet Res Commun 2021. [PMID: 34718924 DOI: 10.1007/s11259-021-09849-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 10/10/2021] [Indexed: 10/19/2022]
Abstract
Paratuberculosis (PTB) is a chronic infectious enteritis of ruminants, caused by Mycobacterium avium subspecies paratuberculosis (MAP) that brings huge economic loss to the dairy farmers. The study was conducted to explore the association of selected SNPs in IFNG, SLC11A1, ANKRA2 and PGLYRP1 genes with resistance to PTB disease in Indian cattle population. A case-control resource population was established based on the results of diagnostic tests used for detection of MAP infection status viz. ELISA, Johnin PPD test, faecal microscopy and IS900 blood PCR. The PCR-RFLP method was used for genotyping of SNPs. SNPs rs109453173 in SLC11A1, rs110853455 in IFNG and rs41933863 in ANKRA2 genes were significantly (P<0.05) associated with resistance to MAP infection. For SNP rs109453173, GG genotype and G allele was found to be associated with resistance against MAP infection than CC and CG genotypes and C allele, respectively. For SNP rs110853455, AG genotype was found to be associated with susceptibility to MAP infection than AA and GG genotype. For SNP rs41933863, the AG genotype provided three and six times more resistance against MAP infection than GG and AA genotype. The results of this study are suggestive of SNPs rs109453173, rs110853455 and rs41933863 as potential markers for screening MAP resistant cattle and a breeding programme favouring GG genotype and G allele for rs109453173, AG genotype for rs41933863 and against AG genotype for rs110853455 might confer resistance against MAP infection in Indian cattle. However, investigation of these SNPs in an independent and larger population will warrant the strength of association for resistance against MAP infection in cattle.
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Yang Y, Musco H, Simpson-Yap S, Zhu Z, Wang Y, Lin X, Zhang J, Taylor B, Gratten J, Zhou Y. Investigating the shared genetic architecture between multiple sclerosis and inflammatory bowel diseases. Nat Commun 2021; 12:5641. [PMID: 34561436 DOI: 10.1038/s41467-021-25768-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 08/31/2021] [Indexed: 12/15/2022] Open
Abstract
An epidemiological association between multiple sclerosis (MS) and inflammatory bowel disease (IBD) is well established, but whether this reflects a shared genetic aetiology, and whether consistent genetic relationships exist between MS and the two predominant IBD subtypes, ulcerative colitis (UC) and Crohn’s disease (CD), remains unclear. Here, we use large-scale genome-wide association study summary data to investigate the shared genetic architecture between MS and IBD overall and UC and CD independently. We find a significantly greater genetic correlation between MS and UC than between MS and CD, and identify three SNPs shared between MS and IBD (rs13428812), UC (rs116555563) and CD (rs13428812, rs9977672) in cross-trait meta-analyses. We find suggestive evidence for a causal effect of MS on UC and IBD using Mendelian randomization, but no or weak and inconsistent evidence for a causal effect of IBD or UC on MS. We observe largely consistent patterns of tissue-specific heritability enrichment for MS and IBDs in lung, spleen, whole blood and small intestine, and identify cell-type-specific enrichment for MS and IBDs in CD4+ T cells in lung and CD8+ cytotoxic T cells in lung and spleen. Our study sheds light on the biological basis of comorbidity between MS and IBD. An epidemiological association between multiple sclerosis (MS) and inflammatory bowel disease (IBD) is well-established, but a genetic link is unclear. Here, the authors investigate the shared genetic architecture between MS and IBD to shed light on the biological basis of comorbidity.
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Holloman BL, Nagarkatti M, Nagarkatti P. Epigenetic Regulation of Cannabinoid-Mediated Attenuation of Inflammation and Its Impact on the Use of Cannabinoids to Treat Autoimmune Diseases. Int J Mol Sci 2021; 22:ijms22147302. [PMID: 34298921 PMCID: PMC8307988 DOI: 10.3390/ijms22147302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 12/15/2022] Open
Abstract
Chronic inflammation is considered to be a silent killer because it is the underlying cause of a wide range of clinical disorders, from cardiovascular to neurological diseases, and from cancer to obesity. In addition, there are over 80 different types of debilitating autoimmune diseases for which there are no cure. Currently, the drugs that are available to suppress chronic inflammation are either ineffective or overtly suppress the inflammation, thereby causing increased susceptibility to infections and cancer. Thus, the development of a new class of drugs that can suppress chronic inflammation is imperative. Cannabinoids are a group of compounds produced in the body (endocannabinoids) or found in cannabis (phytocannabinoids) that act through cannabinoid receptors and various other receptors expressed widely in the brain and immune system. In the last decade, cannabinoids have been well established experimentally to mediate anti-inflammatory properties. Research has shown that they suppress inflammation through multiple pathways, including apoptosis and inducing immunosuppressive T regulatory cells (Tregs) and myeloid-derived suppressor cells (MDSCs). Interestingly, cannabinoids also mediate epigenetic alterations in genes that regulate inflammation. In the current review, we highlight how the epigenetic modulations caused by cannabinoids lead to the suppression of inflammation and help identify novel pathways that can be used to target autoimmune diseases.
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Couceiro J, Matos I, Mendes JJ, Baptista PV, Fernandes AR, Quintas A. Inflammatory factors, genetic variants, and predisposition for preterm birth. Clin Genet 2021; 100:357-367. [PMID: 34013526 DOI: 10.1111/cge.14001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 12/21/2022]
Abstract
Preterm birth is a major clinical and public health challenge, with a prevalence of 11% worldwide. It is the leading cause of death in children younger than 5 years old and represents 70% of neonatal deaths and 75% of neonatal morbidity. Despite the clinical and public health significance, this condition's etiology is still unclear, and most of the cases are spontaneous. There are several known preterm birth risk factors, including inflammatory diseases and the genetic background, although the underlying molecular mechanisms are far from understood. The present review highlights the research advances on the association between inflammatory-related genes and the increased risk for preterm delivery. The most associated genetic variants are the TNFα rs1800629, the IL1α rs17561, and the IL1RN rs2234663. Moreover, many of the genes discussed in this review are also implicated in pathologies involving inflammatory or autoimmune systems, such as periodontal disease, bowel inflammatory disease, and autoimmune rheumatic diseases. This review presents evidence suggesting a common genetic background to preterm birth, autoimmune and inflammatory diseases susceptibility.
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Affiliation(s)
- Joana Couceiro
- Centro de Investigação Interdisciplinar Egas Moniz, Campus Universitário Quinta da Granja, Caparica, Portugal.,UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, Caparica, Portugal.,Laboratório de Ciências Forenses e Psicológicas Egas Moniz, Campus Universitário Quinta da Granja, Caparica, Portugal
| | - Irina Matos
- Centro de Investigação Interdisciplinar Egas Moniz, Campus Universitário Quinta da Granja, Caparica, Portugal
| | - José João Mendes
- Centro de Investigação Interdisciplinar Egas Moniz, Campus Universitário Quinta da Granja, Caparica, Portugal
| | - Pedro V Baptista
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, Caparica, Portugal
| | - Alexandra R Fernandes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, Caparica, Portugal
| | - Alexandre Quintas
- Centro de Investigação Interdisciplinar Egas Moniz, Campus Universitário Quinta da Granja, Caparica, Portugal.,Laboratório de Ciências Forenses e Psicológicas Egas Moniz, Campus Universitário Quinta da Granja, Caparica, Portugal
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da Silva GAV, Mesquita TG, Souza VC, Junior JDES, Gomes de Souza ML, Talhari AC, Talhari S, Naveca FG, Ramasawmy R. A Single Haplotype of IFNG Correlating With Low Circulating Levels of Interferon-γ Is Associated With Susceptibility to Cutaneous Leishmaniasis Caused by Leishmania guyanensis. Clin Infect Dis 2021; 71:274-281. [PMID: 31722386 DOI: 10.1093/cid/ciz810] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Interferon-γ (IFN-γ) plays an important role in the control of Leishmania infection. Blockade of IFN-γ signaling in mice increases lesion size and parasite load. In endemic areas of Leishmaniasis, only a fraction of the population develop the disease. This suggest that host genetics may play a role in this response. We investigated whether single nucleotide polymorphisms (SNPs) in IFNG may be associated with elevated or decrease risk in the development of cutaneous leishmaniasis (CL). METHODS We assessed 9 SNP and cytosine-adenine (CA) repeats in IFNG by nucleotide sequencing in 647 patients with CL caused by Leishmania guyanensis and 629 controls. Circulating plasma IFN-γ levels were also assayed in 400 patients with CL and 400 controls. RESULTS The rs2069705TT genotype is associated with elevated risk of developing CL compared with the rs2069705CC genotype (OR, 1.7; 95% CI, 1.3-2.4; P = .0008). There is a 70% chance that this genotype raises the risk of developing CL. In a dominant model, carriers of the rs2069705T allele compared with the rs2069705CC genotype showed a 50% (range, 20-100%) increased risk of developing CL (OR, 1.5; 95% CI, 1.2-2.0; P = .0004). Haplotype analysis showed 1 haplotype (H1) associated with low levels of IFN-γ presented an increased risk of 60% of developing CL (OR, 1.6; 95% CI, 1.3-1.9; P = 5 × 10-5) compared with non-H1. CONCLUSIONS IFNG variant rs2069705 seems to be a genetic modifier of clinical outcome of Leishmania infection; individuals with the H1 haplotype, associated with low levels of IFN-γ, have a 60% risk of developing CL.
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Affiliation(s)
- George A V da Silva
- Programa de Pos-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Amazonas, Manaus, Brazil
| | - Tirza G Mesquita
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Amazonas, Manaus, Brazil
| | - Victor C Souza
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Amazonas, Manaus, Brazil
| | - José do Espírito Santo Junior
- Programa de Pos-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Amazonas, Manaus, Brazil
| | | | | | - Sinésio Talhari
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Amazonas, Manaus, Brazil
| | - Felipe G Naveca
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Amazonas, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pos-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Amazonas, Manaus, Brazil.,Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Amazonas, Manaus, Brazil
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13
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Liu Y, Zhang G, Guan Y, Zhao X, Wang Q, Li H, Qi J. Association of IFN-γ polymorphisms with ankylosing spondylitis risk. J Cell Mol Med 2020; 24:10615-10620. [PMID: 32729668 PMCID: PMC7521230 DOI: 10.1111/jcmm.15680] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/22/2020] [Accepted: 06/25/2020] [Indexed: 01/14/2023] Open
Abstract
The case‐control study was designed to investigate the genetic effects of interferon‐gamma (IFN‐γ) rs2069727 and rs1861494 polymorphisms on ankylosing spondylitis (AS) susceptibility in a Chinese Han population. Blood samples were collected from 108 AS patients and 110 healthy controls. IFN‐γ polymorphisms were genotyped by polymerase chain reaction‐restriction fragment length polymorphism (PCR‐RFLP). Hardy‐Weinberg equilibrium (HWE) test was performed in control group. Odds ratios (OR) with 95% confidence intervals (95% CI) were calculated using chi‐square test to evaluate the association between AS susceptibility and IFN‐γ polymorphisms, and the results were adjusted by logistic regressive analysis. The frequency of rs2069727 CC genotype was much higher in cases than that in controls, suggested its significant association with increased AS risk (adjusted OR = 5.899, 95% CI = 1.563‐22.261; P = .009). In addition, C allele also showed close association with increased risk of AS (adjusted OR = 2.052, 95% CI = 1.286‐1.704, P = 0 .003). While the genotype and allele frequencies of IFN‐γ rs1861494 polymorphism were not significantly different between patients and controls (P > 0.05 for all), IFN‐γ rs2069727 polymorphism is significantly associated with increased AS risk in a Chinese Han Population.
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Affiliation(s)
- Yanhui Liu
- Department of Orthopedics, Harrison International Peace Hospital, The People's Hospital of Hengshui City, Hengshui, China
| | - Guohui Zhang
- Department of Orthopedics, Harrison International Peace Hospital, The People's Hospital of Hengshui City, Hengshui, China
| | - Yulong Guan
- Department of Orthopedics, Harrison International Peace Hospital, The People's Hospital of Hengshui City, Hengshui, China
| | - Xiaoliang Zhao
- Department of Orthopedics, Harrison International Peace Hospital, The People's Hospital of Hengshui City, Hengshui, China
| | - Quan Wang
- Department of Orthopedics, Harrison International Peace Hospital, The People's Hospital of Hengshui City, Hengshui, China
| | - Hua Li
- Department of Orthopedics, Harrison International Peace Hospital, The People's Hospital of Hengshui City, Hengshui, China
| | - Jinhong Qi
- Department of Orthopedics, Harrison International Peace Hospital, The People's Hospital of Hengshui City, Hengshui, China
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14
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Wu S, Wang Y, Zhang M, Wang M, He JQ. Genetic variants in IFNG and IFNGR1 and tuberculosis susceptibility. Cytokine 2019; 123:154775. [PMID: 31310896 DOI: 10.1016/j.cyto.2019.154775] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/06/2019] [Accepted: 07/08/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Tuberculosis (TB) is the type of chronic infectious disease which majorly caused by Mycobacterium tuberculosis (M. TB). Emerging data suggest that interferon gamma (IFNG) and its receptor IFNGR1 may be involved in the risk of TB. METHODS A total of 636 TB patients and 608 healthy controls were selected. The association between single nucleotide polymorphisms (SNPs) and TB was estimated by logistic analyses adjusting for age, gender and smoking status. SNPs genotyping was done by using the improved multiplex ligase detection reaction (iMLDR). RESULTS The IFNG rs1861494 allele C was related to an increased risk for TB (OR = 1.25, 95%CI: 1.06-1.48; P = 0.009). Compared with TT genotype, CT (OR = 1.28, 95%CI: 1.01-1.63; P = 0.040) and CC (OR = 1.51, 95%CI: 1.04-2.19; P = 0.031) were also risk factors for TB. In the subgroup analysis, the association was stronger among participants < 25 years (OR = 2.40, 95%CI: 1.70-3.38; P < 0.001) and male groups (OR = 1.31, 95%CI: 1.03-1.66; P = 0.030). In addition, IFNG rs1861494 was associated with anti-TB treatment outcome (OR = 0.70, 95%CI: 0.52-0.94; P = 0.017). We also detected that IFNGR1 rs2234711 influenced the IFNG production. CONCLUSION IFNG rs1861494 polymorphism was associated with TB, particularly in the younger and male subgroups.
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Affiliation(s)
- Shouquan Wu
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Wang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Miaomiao Zhang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Minggui Wang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jian-Qing He
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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15
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Spalinger MR, Schwarzfischer M, Hering L, Shawki A, Sayoc A, Santos A, Gottier C, Lang S, Bäbler K, Geirnaert A, Lacroix C, Leventhal GE, Dai X, Rawlings D, Chan AA, Rogler G, McCole DF, Scharl M. Loss of PTPN22 abrogates the beneficial effect of cohousing-mediated fecal microbiota transfer in murine colitis. Mucosal Immunol 2019; 12:1336-47. [PMID: 31501515 DOI: 10.1038/s41385-019-0201-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 08/13/2019] [Accepted: 08/19/2019] [Indexed: 02/07/2023]
Abstract
Fecal microbiota transfer (FMT) is a very efficient approach for the treatment of severe and recurring C. difficile infections. However, the beneficial effect of FMT in other disorders such as ulcerative colitis (UC) or Crohn's disease remains unclear. Furthermore, it is currently unknown how disease-associated genetic variants in donors or recipients influence the effect of FMT. We found that bacteria-transfer from wild-type (WT) donors via cohousing was efficient in inducing recovery from colitis in WT mice, but not in mice deficient in protein-tyrosine phosphatase non-receptor type 22 (PTPN22), a known risk gene for several chronic inflammatory diseases. Also cohousing of PTPN22-deficient mice with diseased WT mice failed to induce faster recovery. Our data indicate that the genetic background of the donor and the recipient influences the outcome of microbiota transfer, and offers a potential explanation why transfer of fecal microbes from some, but not all donors is efficient in UC patients.
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16
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Wu S, Liu X, Wang Y, Zhang M, Wang M, He JQ. Genetic Polymorphisms of IFNG and IFNGR1 with Latent Tuberculosis Infection. Dis Markers 2019; 2019:8410290. [PMID: 31687049 PMCID: PMC6811791 DOI: 10.1155/2019/8410290] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 08/10/2019] [Accepted: 09/17/2019] [Indexed: 02/05/2023]
Abstract
Previous studies indicated that single-nucleotide polymorphisms (SNPs) of interferon gamma (IFNG) and IFNG receptor 1 (IFNGR1) may be involved in the pathogenesis of pulmonary tuberculosis (PTB) in different populations. In order to further explore the results in a Chinese Han population, this study was designed to investigate potential associations between the polymorphisms in IFNG and IFNGR1 and susceptibility to latent tuberculosis infection (LTBI) and/or PTB in a Chinese Han population. A total of 209 PTB, 173 LTBI, and 183 healthy control subjects (HCS) were enrolled in our study. Genotyping was conducted using an improved multiplex ligase detection reaction (iMLDR). We performed a logistic regression including sex and age as covariates to test the effect of alleles/genotypes on LTBI and/or TB. All six markers studied in IFNG and IFNGR1 conformed to the Hardy-Weinberg equilibrium (HWE). The IFNG rs1861494 was significantly associated with LTBI in recessive model, and the CC+CT genotype decreased risk of LTBI by 50% (P = 0.046, OR = 0.50, 95%CI: 0.25-0.99). The IFNGR1 rs2234711 was significantly associated with LTBI, and allele A increased the risk of LTBI by 55% (P = 0.047, OR = 1.55, 95%CI: 1.00-2.40). In the present study, we found that IFNG and IFNGR1 polymorphisms were associated with LTBI.
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Affiliation(s)
- Shouquan Wu
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiangmin Liu
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Wang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Miaomiao Zhang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Minggui Wang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jian-Qing He
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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17
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Hashimoto H, Watanabe M, Inoue N, Hirai N, Haga E, Kinoshita R, Hidaka Y, Iwatani Y. Association of IFNG gene methylation in peripheral blood cells with the development and prognosis of autoimmune thyroid diseases. Cytokine 2019; 123:154770. [PMID: 31279175 DOI: 10.1016/j.cyto.2019.154770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/23/2019] [Accepted: 06/30/2019] [Indexed: 12/30/2022]
Abstract
The intractability of Graves' disease (GD) and the severity of Hashimoto's disease (HD) vary among patients. Both genetic and environmental factors may be associated with their prognoses. To clarify the role of methylation of the IFNG gene in the pathogenesis and prognosis of (AITDs), we examined interferon gamma (IFNG) methylation levels at various CpG sites and genotyped IFNG +874 A/T and +2109 C/T polymorphisms. We analyzed methylation 59 patients with HD, 57 patients with GD and 26 healthy volunteers by pyrosequencing. We genotyped IFNG gene polymorphisms from 207 patients with GD, 208 patients with HD, and 102 healthy controls. The methylation levels of IFNG -54 CpG were higher in patients with intractable GD than in those with GD in remission, but there was no difference between patients with severe and mild HD. In carriers of IFNG +2109 T (CT + TT) (85.5% in controls), the -54 CpG methylation levels were significantly higher in patients with intractable GD than in those with GD in remission. On the other hand, in carriers of IFNG +2109 CC, the -4293 CpG methylation levels were higher in intractable GD patients. The methylation levels of IFNG -54 CpG and -4293 CpG were negatively correlated with the age in HD, especially severe HD, patients and GD patients, respectively. There was no circadian variation but considerable daily variation in the methylation levels of IFNG -54 CpG. In conclusion, both the methylation levels of CpG sites and the functional polymorphisms in the IFNG gene were associated with the pathogenesis and prognosis of AITD, especially with GD intractability.
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Affiliation(s)
- Hidemi Hashimoto
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine, Yamadaoka 1-7, Suita, Osaka 565-0871, Japan
| | - Mikio Watanabe
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine, Yamadaoka 1-7, Suita, Osaka 565-0871, Japan.
| | - Naoya Inoue
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine, Yamadaoka 1-7, Suita, Osaka 565-0871, Japan; Laboratory for Clinical Investigation, Osaka University Hospital, Yamadaoka 2-15, Suita, Osaka 565-0871, Japan.
| | - Nachi Hirai
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine, Yamadaoka 1-7, Suita, Osaka 565-0871, Japan
| | - Emi Haga
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine, Yamadaoka 1-7, Suita, Osaka 565-0871, Japan
| | - Riku Kinoshita
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine, Yamadaoka 1-7, Suita, Osaka 565-0871, Japan.
| | - Yoh Hidaka
- Laboratory for Clinical Investigation, Osaka University Hospital, Yamadaoka 2-15, Suita, Osaka 565-0871, Japan.
| | - Yoshinori Iwatani
- Department of Biomedical Informatics, Division of Health Sciences, Osaka University Graduate School of Medicine, Yamadaoka 1-7, Suita, Osaka 565-0871, Japan.
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18
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Ge Y, Sun M, Wu W, Ma C, Zhang C, He C, Li J, Cong Y, Zhang D, Liu Z. MicroRNA-125a suppresses intestinal mucosal inflammation through targeting ETS-1 in patients with inflammatory bowel diseases. J Autoimmun 2019; 101:109-20. [DOI: 10.1016/j.jaut.2019.04.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/10/2019] [Accepted: 04/12/2019] [Indexed: 12/15/2022]
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19
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Whyte JM, Ellis JJ, Brown MA, Kenna TJ. Best practices in DNA methylation: lessons from inflammatory bowel disease, psoriasis and ankylosing spondylitis. Arthritis Res Ther 2019; 21:133. [PMID: 31159831 PMCID: PMC6547594 DOI: 10.1186/s13075-019-1922-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Advances in genomic technology have enabled a greater understanding of the genetics of common immune-mediated diseases such as ankylosing spondylitis (AS), inflammatory bowel disease (IBD) and psoriasis. The substantial overlap in genetically identified pathogenic pathways has been demonstrated between these diseases. However, to date, gene discovery approaches have only mapped a minority of the heritability of these common diseases, and most disease-associated variants have been found to be non-coding, suggesting mechanisms of disease-association through transcriptional regulatory effects. Epigenetics is a major interface between genetic and environmental modifiers of disease and strongly influence transcription. DNA methylation is a well-characterised epigenetic mechanism, and a highly stable epigenetic marker, that is implicated in disease pathogenesis. DNA methylation is an under-investigated area in immune-mediated diseases, and many studies in the field are affected by experimental design limitations, related to study design, technical limitations of the methylation typing methods employed, and statistical issues. This has resulted in both sparsity of investigations into disease-related changes in DNA methylation, a paucity of robust findings, and difficulties comparing studies in the same disease. In this review, we cover the basics of DNA methylation establishment and control, and the methods used to examine it. We examine the current state of DNA methylation studies in AS, IBD and psoriasis; the limitations of previous studies; and the best practices for DNA methylation studies. The purpose of this review is to assist with proper experimental design and consistency of approach in future studies to enable a better understanding of the functional role of DNA methylation in immune-mediated disease.
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Affiliation(s)
- Jessica M Whyte
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Woolloongabba, Queensland, Australia
| | - Jonathan J Ellis
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Woolloongabba, Queensland, Australia
| | - Matthew A Brown
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Woolloongabba, Queensland, Australia. .,Translational Research Institute, Princess Alexandra Hospital, 37 Kent Street, Woolloongabba, Queensland, 4102, Australia.
| | - Tony J Kenna
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Woolloongabba, Queensland, Australia
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20
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Ogrinc Wagner A, Friedrich V, Barthels C, Marconi P, Blutke A, Brombacher F, Brocker T. Strain specific maturation of Dendritic cells and production of IL-1β controls CD40-driven colitis. PLoS One 2019; 14:e0210998. [PMID: 30653608 DOI: 10.1371/journal.pone.0210998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/04/2019] [Indexed: 02/07/2023] Open
Abstract
Intestinal integrity is maintained by balanced numbers of CD103+ Dendritic cells (DCs), which generate peripherally induced regulatory T cells (iTregs). We have developed a mouse model where DC-specific constitutive CD40 signals caused a strong reduction of CD103+ DCs in the lamina propria (LP) and intestinal lymph nodes (LN). As a consequence, also iTregs were strongly reduced and transgenic mice on the C57Bl/6-background (B6) developed fatal colitis. Here we describe that transgenic mice on a pure Balb/c-background (B/c) do not show any pathologies, while transgenic C57Bl/6 x Balb/c (F1) mice develop weak colon inflammation, without fatal colitis. This graded pathology correlated with the effects of CD40-signalling on DCs in each background, with striking loss of CD103+ DCs in B6, but reduced in F1 and diminished in B/c background. We further show direct correlation of CD103+ DC-numbers with numbers of iTregs, the frequencies of which behave correspondingly. Striking effects on B6-DCs reflected robust loss of surface MHCII, known to be crucial for iTreg induction. Furthermore, elevated levels of IL-23 together with IL-1, found only in B6 mice, support generation of intestinal IFN-γ+IL-17+ Th17 cells and IFN-γ+ Th1 cells, responsible for onset of disease. Together, this demonstrates a novel aspect of colitis-control, depending on genetic background. Moreover, strain-specific environmental sensing might alter the CD103+ DC/iTreg-axis to tip intestinal homeostatic balance to pathology.
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21
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Stevens TW, Matheeuwsen M, Lönnkvist MH, Parker CE, Wildenberg ME, Gecse KB, D'Haens GR. Systematic review: predictive biomarkers of therapeutic response in inflammatory bowel disease-personalised medicine in its infancy. Aliment Pharmacol Ther 2018; 48:1213-1231. [PMID: 30378142 DOI: 10.1111/apt.15033] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/19/2018] [Accepted: 09/29/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is characterised by substantial heterogeneity in treatment response. With an expanding number of therapeutic agents, identifying optimal treatment at the patient level remains a major challenge. AIM To systematically review the available literature on predictive biomarkers of therapeutic response in IBD. METHODS An electronic literature search was performed on 30 January 2018 using MEDLINE, EMBASE and the Cochrane Library. Retrospective, prospective, uncontrolled and controlled studies reporting on biomarkers predicting therapeutic response in paediatric and adult IBD populations were eligible for inclusion. The methodological quality of the included studies was assessed using the QUIPS tool. Due to anticipated heterogeneity and limited data, a qualitative, rather than quantitative, assessment was planned. RESULTS Of the 10 638 citations identified, 92 articles met the inclusion criteria. Several potential DNA, mRNA and protein markers were evaluated as predictive biomarkers. Most studies focused on predicting response to anti-TNF agents. Substantial between-study heterogeneity was identified with respect to both the biomarkers studied and the definition of response. None of the included studies received a low risk of bias rating for all six domains. Currently, none of the biomarkers is sufficiently predictive for clinical use. CONCLUSIONS The search for predictive biomarkers is still in its infancy and current evidence is limited. Future research efforts should take into account the high patient heterogeneity within prospective trials with objective response assessment. Predictive models will most likely comprise a combination of several molecular markers from integrated omics-levels and clinical characteristics.
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Affiliation(s)
- Toer W Stevens
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Mijntje Matheeuwsen
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Maria H Lönnkvist
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Manon E Wildenberg
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Tytgat Institute for Liver and Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands
| | - Krisztina B Gecse
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Geert R D'Haens
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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22
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De Mattia E, Dreussi E, Montico M, Gagno S, Zanusso C, Quartuccio L, De Vita S, Guardascione M, Buonadonna A, D'Andrea M, Pella N, Favaretto A, Mini E, Nobili S, Romanato L, Cecchin E, Toffoli G. A Clinical-Genetic Score to Identify Surgically Resected Colorectal Cancer Patients Benefiting From an Adjuvant Fluoropyrimidine-Based Therapy. Front Pharmacol 2018; 9:1101. [PMID: 30337874 PMCID: PMC6180157 DOI: 10.3389/fphar.2018.01101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/10/2018] [Indexed: 12/20/2022] Open
Abstract
There are clinical challenges related to adjuvant treatment in colorectal cancer (CRC) and novel molecular markers are needed for better risk stratification of patients. Our aim was to integrate our previously reported clinical-genetic prognostic score with new immunogenetic markers of 5-year disease-free survival (DFS) to evaluate the recurrence risk stratification before fluoropyrimidine (FL)-based adjuvant therapy. The study population included a total of 270 stage II-III CRC patients treated with adjuvant FL with (FL + OXA, n = 119) or without oxaliplatin (FL, n = 151). Patients were genotyped for a panel of 192 tagging polymorphisms in 34 immune-related genes. The IFNG-rs1861494 polymorphism was associated with worse DFS in the FL + OXA (HR = 2.14, 95%CI 1.13–4.08; P = 0.020, q-value = 0.249) and FL (HR = 1.97, 95%CI 1.00–3.86; P = 0.049) cohorts, according to a dominant model. The integration of IFNG-rs1861494 in our previous clinical genetic multiparametric score of DFS improved the patients’ risk stratification (Log-rank P = 0.0026 in the pooled population). These findings could improve the discrimination of patients who would benefit from adjuvant treatment. In addition, the results may help better elucidate the interplay between the immune system and chemotherapeutics and help determine the efficacy of anti-tumor strategies.
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Affiliation(s)
- Elena De Mattia
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Eva Dreussi
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Marcella Montico
- Scientific Directorate, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Sara Gagno
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Chiara Zanusso
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Luca Quartuccio
- Department of Medical Area (DAME), Rheumatology Clinic, Santa Maria della Misericordia University Hospital, Udine, Italy
| | - Salvatore De Vita
- Department of Medical Area (DAME), Rheumatology Clinic, Santa Maria della Misericordia University Hospital, Udine, Italy
| | - Michela Guardascione
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Angela Buonadonna
- Medical Oncology Unit B, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Mario D'Andrea
- Medical Oncology Unit, "San Filippo Neri Hospital", Rome, Italy
| | | | | | - Enrico Mini
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Stefania Nobili
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Loredana Romanato
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Erika Cecchin
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
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Tye H, Yu CH, Simms LA, de Zoete MR, Kim ML, Zakrzewski M, Penington JS, Harapas CR, Souza-Fonseca-Guimaraes F, Wockner LF, Preaudet A, Mielke LA, Wilcox SA, Ogura Y, Corr SC, Kanojia K, Kouremenos KA, De Souza DP, McConville MJ, Flavell RA, Gerlic M, Kile BT, Papenfuss AT, Putoczki TL, Radford-Smith GL, Masters SL. NLRP1 restricts butyrate producing commensals to exacerbate inflammatory bowel disease. Nat Commun 2018; 9:3728. [PMID: 30214011 DOI: 10.1038/s41467-018-06125-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 08/21/2018] [Indexed: 12/26/2022] Open
Abstract
Anti-microbial signaling pathways are normally triggered by innate immune receptors when detecting pathogenic microbes to provide protective immunity. Here we show that the inflammasome sensor Nlrp1 aggravates DSS-induced experimental mouse colitis by limiting beneficial, butyrate-producing Clostridiales in the gut. The colitis-protective effects of Nlrp1 deficiency are thus reversed by vancomycin treatment, but recapitulated with butyrate supplementation in wild-type mice. Moreover, an activating mutation in Nlrp1a increases IL-18 and IFNγ production, and decreases colonic butyrate to exacerbate colitis. We also show that, in patients with ulcerative colitis, increased NLRP1 in inflamed regions of the colon is associated with increased IFN-γ. In this context, NLRP1, IL-18 or IFN-γ expression negatively correlates with the abundance of Clostridiales in human rectal mucosal biopsies. Our data identify the NLRP1 inflammasome to be a key negative regulator of protective, butyrate-producing commensals, which therefore promotes inflammatory bowel disease.
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Shin B, Kress RL, Kramer PA, Darley-Usmar VM, Bellis SL, Harrington LE. Effector CD4 T cells with progenitor potential mediate chronic intestinal inflammation. J Exp Med 2018; 215:1803-1812. [PMID: 29915024 PMCID: PMC6028516 DOI: 10.1084/jem.20172335] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/04/2018] [Accepted: 05/18/2018] [Indexed: 12/22/2022] Open
Abstract
Effector CD4 T cells with progenitor properties are present during chronic intestinal inflammation, and these cells support the maintenance of disease. The expression of the glycosyltransferase ST6Gal-I by these cells promotes cell survival and TCF1 levels. Dysregulated CD4 T cell responses are causally linked to autoimmune and chronic inflammatory disorders, yet the cellular attributes responsible for maintaining the disease remain poorly understood. Herein, we identify a discrete population of effector CD4 T cells that is able to both sustain and confer intestinal inflammation. This subset of pathogenic CD4 T cells possesses a unique gene signature consistent with self-renewing T cells and hematopoietic progenitor cells, exhibits enhanced survival, and continually seeds the terminally differentiated IFNγ-producing cells in the inflamed intestine. Mechanistically, this population selectively expresses the glycosyltransferase ST6Gal-I, which is required for optimal expression of the stemness-associated molecule TCF1 by effector CD4 T cells. Our findings indicate that the chronicity of T cell–mediated inflammation is perpetuated by specific effector CD4 T cells with stem-like properties.
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Affiliation(s)
- Boyoung Shin
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL
| | - Robert L Kress
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL
| | - Philip A Kramer
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | | | - Susan L Bellis
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL
| | - Laurie E Harrington
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL
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25
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Abstract
The gastrointestinal tract is a site of high immune challenge, as it must maintain a delicate balance between tolerating luminal contents and generating an immune response toward pathogens. CD4+ T cells are key in mediating the host protective and homeostatic responses. Yet, CD4+ T cells are also known to be the main drivers of inflammatory bowel disease (IBD) when this balance is perturbed. Many subsets of CD4+ T cells have been identified as players in perpetuating chronic intestinal inflammation. Over the last few decades, understanding of how each subset of Th cells plays a role has dramatically increased. Simultaneously, this has allowed development of therapeutic innovation targeting specific molecules rather than broad immunosuppressive agents. Here, we review the emerging evidence of how each subset functions in promoting and sustaining the chronic inflammation that characterizes IBD.
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Affiliation(s)
- Tanbeena Imam
- Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Sungtae Park
- Department of Biological Sciences, Purdue University, West Lafayette, IN, United States
| | - Mark H Kaplan
- Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Matthew R Olson
- Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States.,Department of Biological Sciences, Purdue University, West Lafayette, IN, United States
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26
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Campbell MC, Smith LT, Harvey J. Population genetic evidence for positive and purifying selection acting at the human IFN-γ locus in Africa. Genes Immun 2019; 20:143-57. [PMID: 29599512 DOI: 10.1038/s41435-018-0016-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/22/2018] [Accepted: 01/26/2018] [Indexed: 01/09/2023]
Abstract
Despite its critical role in the defense against microbial infection and tumor development, little is known about the range of nucleotide and haplotype variation at IFN-γ, or the evolutionary forces that have shaped patterns of diversity at this locus. To address this gap in knowledge, we examined sequence data from the IFN-γ gene in 1461 individuals from 15 worldwide populations. Our analyses uncovered novel patterns of variation in distinct African populations, including an excess of high frequency-derived alleles, unusually long haplotype structure surrounding the IFN-γ gene, and a "star-like" genealogy of African-specific haplotypes carrying variants previously associated with infectious disease. We also inferred a deep time to coalescence of variation at IFN-γ (~ 0.8 million years ago) and ancient ages for common polymorphisms predating the evolution of modern humans. Taken together, these results are congruent with a model of positive selection on standing variation in African populations. Furthermore, we inferred that common variants in intron 3 of IFN-γ are the likely targets of selection. In addition, we observed a paucity of non-synonymous substitutions relative to synonymous changes in the exons of IFN-γ in African and non-African populations, suggestive of strong purifying selection. Therefore, we contend that positive and purifying selection have influenced levels of diversity in different regions of IFN-γ, implying that these distinct genic regions are, or have been, functionally important. Overall, this study provides additional insights into the evolutionary events that have contributed to the frequency and distribution of alleles having a role in human health and disease.
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27
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Rolandelli A, Pellegrini JM, Amiano NO, Santilli MC, Morelli MP, Castello FA, Tateosian NL, Levi A, Casco N, Palmero DJ, García VE. The IFNG rs1861494 Single Nucleotide Polymorphism Is Associated with Protection against Tuberculosis Disease in Argentina. Genes (Basel) 2018; 9:E46. [PMID: 29361774 PMCID: PMC5793197 DOI: 10.3390/genes9010046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 01/09/2018] [Accepted: 01/09/2018] [Indexed: 11/16/2022] Open
Abstract
Interferon gamma (IFNG) plays a key role during Mycobacterium tuberculosis (Mtb) infection, and several polymorphisms located in its gene are associated with risk of tuberculosis in diverse populations. Nevertheless, the genetic resistance/susceptibility to tuberculosis in Argentina is unknown. The IFNG rs1861494 polymorphism (G→A) was reported to alter the binding of transcription factors to this region, influencing IFNG production. Using a case-control study, we found an association between the AA and AG genotypes and tuberculosis resistance (AA vs. GG: odds ratio (OR) = 0.235, p-value = 0.012; AG vs. GG: OR = 0.303, p-value = 0.044; AA vs. AG: OR = 0.776, p-value = 0.427; AA + AG vs. GG: OR = 0.270, p-value = 0.022). Moreover, Mtb-antigen stimulated peripheral blood mononuclear cells (PBMCs) from healthy donors and AA carriers secreted the highest amounts of IFNG in culture supernatants (p-value = 0.034) and presented the greatest percentage of CD4⁺IFNG⁺ lymphocytes (p-value = 0.035), in comparison with GG carriers. No association between the polymorphism and clinical parameters of tuberculosis severity was detected. However, our findings indicate that the rs1861494 single nucleotide polymorphism (SNP) could be considered as a biomarker of tuberculosis resistance in the Argentinean population.
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Affiliation(s)
- Agustín Rolandelli
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Joaquín M Pellegrini
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Nicolás O Amiano
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - María C Santilli
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - María P Morelli
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Florencia A Castello
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Nancy L Tateosian
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Alberto Levi
- División Tisioneumonología Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina.
| | - Nicolás Casco
- División Tisioneumonología Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina.
| | - Domingo J Palmero
- División Tisioneumonología Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina.
| | - Verónica E García
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
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28
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Gao J, Wei L, Liu X, Wang L, Niu D, Jin T, Yao G, Wang M, Yu Q, Fu R. Association Between IFN-γ Gene Polymorphisms and IgA Nephropathy in a Chinese Han Population. Kidney Blood Press Res 2017; 42:136-144. [PMID: 28391282 DOI: 10.1159/000473889] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/21/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS IFN-γ was reported to be involved in the development and progression of Immunoglobulin A nephropathy (IgAN), however, few studies have investigated the association between IFN-γ polymorphisms and IgAN. Therefore, we performed a case-control study to assess the association between IFN-γ polymorphisms and the risk of IgAN. METHODS Sequenom MassARRAY was used to genotype two SNPs (rs1861494 and rs2430561) in 351 patients with IgAN and 310 healthy controls. Associations were evaluated as odd ratios (OR) with 95% confidence intervals (CI). RESULTS No association was found between IFN-γ rs1861494 and IgAN risk or clinical parameters. For rs2430561, the AA genotype was more common in patients with IgAN, compared with controls (AT vs. AA: OR = 0.57, P = 0.035). IFN-γ-rs2430561 T allele may be a protective factor for IgAN susceptibility (T vs. A: OR = 0.59, P = 0.04). Subgroup analysis based on clinical features revealed no significant association between rs2430561 polymorphism and clinical data such as gender, 24-h urine protein, blood pressure, Oxford classifcation and estimated glomerular fltration rate. IgAN patients had a higher IFN-γ serum level than healthy controls and patients with rs1861494 AA genotype had a higher IFN-γ serum level compared with those with AG/GG genotypes. CONCLUSIONS IFN-γ polymorphisms may be involved in the development and progression of IgAN.
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Affiliation(s)
- Jie Gao
- Department of Nephrology, Xi'an, China
| | | | - Xinghan Liu
- Department of Oncology, Second Affiliated Hospital, Xi'an, China
| | - Li Wang
- Department of Nephrology, Xi'an, China
| | - Dan Niu
- Department of Nephrology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tianbo Jin
- National Engineering Research Center for Miniaturized Detection Systems, School of Life Sciences, Northwest University, Xi'an, China
| | | | - Meng Wang
- Department of Oncology, Second Affiliated Hospital, Xi'an, China
| | - Qiaoling Yu
- Department of Pathology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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29
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Redlich R, Stacey D, Opel N, Grotegerd D, Dohm K, Kugel H, Heindel W, Arolt V, Baune BT, Dannlowski U. Evidence of an IFN-γ by early life stress interaction in the regulation of amygdala reactivity to emotional stimuli. Psychoneuroendocrinology 2015; 62:166-73. [PMID: 26313134 DOI: 10.1016/j.psyneuen.2015.08.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 07/28/2015] [Accepted: 08/05/2015] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Since numerous studies have found that exposure to early life stress leads to increased peripheral inflammation and psychiatric disease, it is thought that peripheral immune activation precedes and possibly mediates the onset of stress-associated psychiatric disease. Despite early studies, IFNγ has received little attention relative to other inflammatory cytokines in the context of the pathophysiology of affective disorders. Neuroimaging endophenotypes have emerged recently as a promising means of elucidating these types of complex relationships including the modeling of the interaction between environmental factors and genetic predisposition. Here we investigate the GxE relationship between early-life stress and genetic variants of IFNγ on emotion processing. METHODS To investigate the impact of the relationship between genetic variants of IFNγ (rs1861494, rs2069718, rs2430561) and early life stress on emotion processing, a sample of healthy adults (n=409) undergoing an emotional faces paradigm in an fMRI study were genotyped and analysed. Information on early life stress was obtained via Childhood Trauma Questionnaire (CTQ). RESULTS A positive association between early life stress and amygdala reactivity was found. Specifically, the main effect of genotype of rs1861494 on amygdala reactivity indicates a higher neural response in C allele carriers compared to T homozygotes, while we did not find main effects of rs2069718 and rs2430561. Importantly, interaction analyses revealed a specific interaction between IFNγ genotype (rs1861494) and early life stress affecting amygdala reactivity to emotional faces, resulting from a positive association between CTQ scores and amygdala reactivity in C allele carriers while this association was absent in T homozygotes. CONCLUSIONS Our findings indicate that firstly the genetic variant of IFNγ (rs1861494) is involved with the regulation of amygdala reactivity to emotional stimuli and secondly, that this genetic variant moderates effects of early life stress on emotion processing. These findings reiterate the importance that inflammatory genes play in the interaction with early life stress and the regulation of emotion processing.
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Affiliation(s)
- Ronny Redlich
- Department of Psychiatry, University of Münster, Germany.
| | - David Stacey
- Discipline of Psychiatry, School of Medicine, University of Adelaide, Australia
| | - Nils Opel
- Department of Psychiatry, University of Münster, Germany
| | | | - Katharina Dohm
- Department of Psychiatry, University of Münster, Germany
| | - Harald Kugel
- Department of Clinical Radiology, University of Münster, Germany
| | - Walter Heindel
- Department of Clinical Radiology, University of Münster, Germany
| | - Volker Arolt
- Department of Psychiatry, University of Münster, Germany
| | - Bernhard T Baune
- Discipline of Psychiatry, School of Medicine, University of Adelaide, Australia
| | - Udo Dannlowski
- Department of Psychiatry, University of Münster, Germany; Department of Psychiatry, University of Marburg, Germany
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