1
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Dang Y, Huang J, Lin C, Xu S. Investigation of the association between the Toll-like receptor 1 rs4833095 variation and gastric adenocarcinoma recurrence. Ann Hum Genet 2024; 88:287-299. [PMID: 38196279 DOI: 10.1111/ahg.12548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 12/10/2023] [Accepted: 12/15/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND Toll-like receptors (TLRs) are a family of transmembrane receptors that play key roles in identifying invading pathogens and activating innate immunity. TLR1 has been reported to be associated with the risk of gastric cancer (GC) but that was based on only a simple statistical analysis. METHODS We genotyped the TLR1 in 526 GC patients to investigate the association between the variation and gastric cancer survival by the multiplex polymerase chain reaction and sequencing method. The rs4833095 variation (chr4:38798089 [GRCh38. p14], T > C) in the TLR1 gene was genotyped in 526 patients who underwent GC resection. The associations between genotype, survival, and recurrence were investigated. The potential role of TLR1 in stomach cancer was investigated using clinical data from formalin-fixed, paraffin-embedded tissue samples. RESULTS Patients with the T/C and C/C genotypes of rs4833095 had a lower risk of recurrence than those with the T/T genotype. Recurrence-free periods were substantially longer in patients with the T/C or C/C genotypes (22.6 and 22.3 months, respectively) than in those with the T/T genotype (20.7 months). Patients with the T/C or C/C genotype, low expression levels of VEGF1, high expression levels of ERBB2 and ERCC1, the absence of cancer nodules, a tumor size of less than 5 cm, and poor differentiation had a considerably reduced risk of recurrence. CONCLUSIONS TLR1 rs4833095 was correlated with the postresection prognosis of patients with gastric cancer, suggesting that TLR1 may have a role in the onset or progression of gastric cancer.
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Affiliation(s)
- Yuan Dang
- Innovation Center for Cancer Research, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
- Fujian Key Laboratory of Advanced Technology for Cancer Screening and Early Diagnosis, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Jingyun Huang
- Innovation Center for Cancer Research, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
- Fujian Key Laboratory of Advanced Technology for Cancer Screening and Early Diagnosis, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Chen Lin
- Department of General Surgery, 900th Hospital of the Joint Logistics Support Force, Fuzhou, China
- Department of General Surgery, Fuzong Clinical Medical College, Fujian Medical University, Fuzhou, China
- Department of General Surgery, Dongfang Hospital of Xiamen University, School of Medicine, Xiamen University, Fuzhou, China
| | - Shaohua Xu
- Department of Hepatobiliary and Pancreatic Surgery, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
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2
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Ignacio A, Czyz S, McCoy KD. Early life microbiome influences on development of the mucosal innate immune system. Semin Immunol 2024; 73:101885. [PMID: 38788491 DOI: 10.1016/j.smim.2024.101885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/11/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024]
Abstract
The gut microbiota is well known to possess immunomodulatory capacities, influencing a multitude of cellular signalling pathways to maintain host homeostasis. Although the formation of the immune system initiates before birth in a sterile environment, an emerging body of literature indicates that the neonatal immune system is influenced by a first wave of external stimuli that includes signals from the maternal microbiota. A second wave of stimulus begins after birth and must be tightly regulated during the neonatal period when colonization of the host occurs concomitantly with the maturation of the immune system, requiring a fine adjustment between establishing tolerance towards the commensal microbiota and preserving inflammatory responses against pathogenic invaders. Besides integrating cues from commensal microbes, the neonatal immune system must also regulate responses triggered by other environmental signals, such as dietary antigens, which become more complex with the introduction of solid food during the weaning period. This "window of opportunity" in early life is thought to be crucial for the proper development of the immune system, setting the tone of subsequent immune responses in adulthood and modulating the risk of developing chronic and metabolic inflammatory diseases. Here we review the importance of host-microbiota interactions for the development and maturation of the immune system, particularly in the early-life period, highlighting the known mechanisms involved in such communication. This discussion is focused on recent data demonstrating microbiota-mediated education of innate immune cells and its role in the development of lymphoid tissues.
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Affiliation(s)
- Aline Ignacio
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Sonia Czyz
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Kathy D McCoy
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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3
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Ahmad S, Ashktorab H, Brim H, Housseau F. Inflammation, microbiome and colorectal cancer disparity in African-Americans: Are there bugs in the genetics? World J Gastroenterol 2022; 28:2782-2801. [PMID: 35978869 PMCID: PMC9280725 DOI: 10.3748/wjg.v28.i25.2782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/27/2022] [Accepted: 05/28/2022] [Indexed: 02/06/2023] Open
Abstract
Dysregulated interactions between host inflammation and gut microbiota over the course of life increase the risk of colorectal cancer (CRC). While environmental factors and socio-economic realities of race remain predominant contributors to CRC disparities in African-Americans (AAs), this review focuses on the biological mediators of CRC disparity, namely the under-appreciated influence of inherited ancestral genetic regulation on mucosal innate immunity and its interaction with the microbiome. There remains a poor understanding of mechanisms linking immune-related genetic polymorphisms and microbiome diversity that could influence chronic inflammation and exacerbate CRC disparities in AAs. A better understanding of the relationship between host genetics, bacteria, and CRC pathogenesis will improve the prediction of cancer risk across race/ethnicity groups overall.
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Affiliation(s)
- Sami Ahmad
- Department of Oncology, Johns Hopkins University, Baltimore, MD 21231, United States
| | - Hassan Ashktorab
- Department of Medicine, Howard University, Washington, DC 20060, United States
| | - Hassan Brim
- Department of Pathology, Howard University, Washington, DC 20060, United States
| | - Franck Housseau
- Department of Oncology, Johns Hopkins University, Baltimore, MD 21231, United States
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4
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Miyake Y, Tanaka K, Nagata C, Furukawa S, Andoh A, Yokoyama T, Yoshimura N, Mori K, Ninomiya T, Yamamoto Y, Takeshita E, Ikeda Y, Saito M, Ohashi K, Imaeda H, Kakimoto K, Higuchi K, Nunoi H, Mizukami Y, Suzuki S, Hiraoka S, Okada H, Kawasaki K, Higashiyama M, Hokari R, Miura H, Miyake T, Kumagi T, Kato H, Hato N, Sayama K, Hiasa Y. IL12B rs6887695 polymorphism and interaction with alcohol intake in the risk of ulcerative colitis in Japan. Cytokine 2022; 155:155901. [PMID: 35567898 DOI: 10.1016/j.cyto.2022.155901] [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: 01/10/2022] [Revised: 04/08/2022] [Accepted: 04/29/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND The interleukin (IL)-23/Th17 pathway plays a critical role in ulcerative colitis (UC). The IL-12p40 subunit, which is shared by IL-23 and IL-12, is encoded by the IL12B gene. The current case-control study investigated the association between IL12B SNP rs6887695 and the UC risk. METHODS There were 384 cases within 4 years of UC diagnosis and 661 controls who were enrolled. Adjustments were made for sex, age, pack-years of smoking, alcohol consumption, history of appendicitis, family history of UC, education level, and body mass index. RESULTS Subjects with the GG IL12B SNP rs6887695 genotype had a significantly increased risk of UC compared with those with the CC genotype (adjusted odds ratio [AOR], 1.60; 95% confidence interval [CI], 1.08-2.36). This positive association was also significant using the additive and recessive models (AOR, 1.25; 95% CI, 1.03-1.52; AOR, 1.50; 95% CI, 1.08-2.09, respectively). An independent inverse relationship was observed between ever alcohol consumption and the UC risk in those with the CC genotype while no significant association was found in those with at least one G allele (P for interaction = 0.0008). CONCLUSIONS IL12B SNP rs6887695 was significantly associated with UC. The influence of alcohol consumption might rely on rs6887695.
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Affiliation(s)
- Yoshihiro Miyake
- Department of Epidemiology and Public Health, Ehime University Graduate School of Medicine, Ehime, Japan.
| | - Keiko Tanaka
- Department of Epidemiology and Public Health, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Chisato Nagata
- Department of Epidemiology and Preventive Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | | | - Akira Andoh
- Department of Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Tetsuji Yokoyama
- Department of Health Promotion, National Institute of Public Health, Saitama, Japan
| | - Naoki Yoshimura
- Department of Internal Medicine, Division of IBD, Tokyo Yamate Medical Center, Tokyo, Japan
| | - Kenichiro Mori
- Gastroenterology Center, Ehime Prefectural Central Hospital, Ehime, Japan
| | - Tomoyuki Ninomiya
- Gastroenterology Center, Ehime Prefectural Central Hospital, Ehime, Japan
| | | | - Eiji Takeshita
- Center for Inflammatory Bowel Diseases, Ehime University Hospital, Ehime, Japan
| | - Yoshio Ikeda
- Endoscopy Center, Ehime University Hospital, Ehime, Japan
| | - Mitsuru Saito
- Department of Gastroenterology, Tokuyama Central Hospital, Yamaguchi, Japan
| | - Katsuhisa Ohashi
- Ohashi Clinic Participate in Gastro-Enterology and Ano-Proctology, Ehime, Japan
| | - Hirotsugu Imaeda
- Department of Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Kazuki Kakimoto
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Kazuhide Higuchi
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | | | - Yuji Mizukami
- Department of Gastroenterology, Matsuyama Shimin Hospital, Ehime, Japan
| | | | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Keitarou Kawasaki
- Department of Internal Medicine and Gastroenterology, Saiseikai Imabari Hospital, Ehime, Japan
| | - Masaaki Higashiyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Ryota Hokari
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Hiromasa Miura
- Department of Bone and Joint Surgery, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Teruki Miyake
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Teru Kumagi
- Postgraduate Clinical Training Center, Ehime University Hospital, Ehime, Japan
| | | | - Naohito Hato
- Department of Otolaryngology, Head and Neck Surgery, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Koji Sayama
- Department of Dermatology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Yoichi Hiasa
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan
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5
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Xiao BH, Ma XD, Lv JJ, Yang T, Liu XJ, An LY, Qi YX, Lu ML, Duan YQ, Sun DL. Systematic evaluation of the diagnostic approach of inflammatory bowel disease guidelines. Int J Clin Pract 2021; 75:e14365. [PMID: 34008296 DOI: 10.1111/ijcp.14365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 05/09/2021] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE To collect and evaluate the diagnostic approach of inflammatory bowel disease (IBD) guidelines and provide useful feedback for guideline developers and evidence-based clinical information to help physicians make decisions. METHODS Diagnostic guidelines for IBD were retrieved by performing systemic and manual searches. Qualified clinical practice guidelines (CPGs) were included and then evaluated by four well-trained evaluators using the AGREE II instrument. To reduce the bias generated in this process, we used the Measurement Scale of Rate of Agreement (MSRA) tool to interpret the results. Guidelines with good recommendation distributions among the diagnostic field were further reclassified and evaluated. RESULTS Fifteen diagnostic CPGs for IBD were identified and evaluated, and 70.3% (11/15) of the CPGs were above the recommended level. We observed heterogeneity among the diagnostic CPGs for IBD and discrepancies among different domains in one specific guideline. Potential improvements were identified in the fields of stakeholder involvement, rigour of development and applicability. By further analysing the heterogeneity of the recommendations and evidence in 5 UC-CPGs, we found the following issues: no discussion of diagnosing severe complications of UC, disputed significance of serologic and genetic diagnoses of UC, insufficient attention towards medical histories/physical examinations/differential diagnoses and discrepancy in classification criteria. CONCLUSION The included diagnostic CPGs for IBD were generally of good quality, but heterogeneity was identified. Addressing these issues will provide useful feedback for the guideline updating process, and it will also benefit current clinical practice and eventually patient outcome.
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Affiliation(s)
- Bing-He Xiao
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Xu-Dong Ma
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Jia-Jun Lv
- Department of Gastroenterology, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Ting Yang
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Xin-Jie Liu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Li-Ya An
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Yu-Xing Qi
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Ming-Liang Lu
- Department of Gastroenterology, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Yong-Qing Duan
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
| | - Da-Li Sun
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, China
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6
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Nischalke HD, Fischer J, Klüners A, Matz-Soja M, Krämer B, Langhans B, Goeser F, Soyka M, Stickel F, Spengler U, Nattermann J, Strassburg CP, Berg T, Lutz P. A genetic variant in toll-like receptor 5 is linked to chemokine levels and hepatocellular carcinoma in steatohepatitis. Liver Int 2021; 41:2139-2148. [PMID: 34051061 DOI: 10.1111/liv.14980] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 04/26/2021] [Accepted: 05/19/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Bacterial translocation drives liver disease progression. We investigated whether functional genetic variants in toll-like receptor 5 (TLR5), the receptor for bacterial flagellin, affect the risk for hepatocellular carcinoma (HCC). METHODS Healthy controls (n = 212), patients with alcohol abuse without liver disease (n = 382), and patients from a discovery cohort of alcohol-associated cirrhosis (n = 372 including 79 HCC cases), a validation cohort of alcohol-associated cirrhosis (n = 355 including 132 HCC cases), and a cohort of cirrhosis due to nonalcoholic steatohepatitis (NASH) (n = 145 including 62 HCC cases) were genotyped for the TLR5 rs5744174 and rs5744168 polymorphisms. Chemokine levels were measured by ELISA in patients' sera and supernatants of flagellin-stimulated healthy monocytes. RESULTS Frequency of the TLR5 rs5744174 TT genotype was similar in healthy controls (33%), controls with alcohol abuse (34%), and patients with alcohol-associated cirrhosis in the discovery (28%), validation (33%), and NASH cohort (31%). The TT genotype was enriched in patients with versus without HCC in the discovery, validation, and NASH cohort (41% vs 25%; 39% vs 29%; 40% vs 24%; p < .05 each). This genotype remained a risk factor for HCC (OR = 1.9; p = .01) after multivariate correction for age, gender, diabetes, and carriage of the PNPLA3 148M variant. Interleukin-8 induction in monocytes from healthy controls and serum levels of interleukin-8 and CXCL1 from cirrhotic patients with the TT genotype were significantly increased versus C allele carriers. CONCLUSION The TLR5 rs5744174 polymorphism, affecting immune response to flagellin, is linked to occurrence of HCC in cirrhosis caused by steatohepatitis.
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Affiliation(s)
- Hans Dieter Nischalke
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Janett Fischer
- Division of Hepatology, Department of Oncology, Gastroenterology, Hepatology, Pulmonology and Infectious Diseases, Leipzig University Medical Center, Leipzig, Germany
| | - Alexandra Klüners
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Madlen Matz-Soja
- Division of Hepatology, Department of Oncology, Gastroenterology, Hepatology, Pulmonology and Infectious Diseases, Leipzig University Medical Center, Leipzig, Germany
| | - Benjamin Krämer
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Bettina Langhans
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Felix Goeser
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Michael Soyka
- Psychiatric Hospital, Ludwig Maximilians University, Munich, Germany
| | - Felix Stickel
- Department of Gastroenterology and Hepatology, University Hospital of Zürich, Zürich, Switzerland
| | - Ulrich Spengler
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Jacob Nattermann
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Christian P Strassburg
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
| | - Thomas Berg
- Division of Hepatology, Department of Oncology, Gastroenterology, Hepatology, Pulmonology and Infectious Diseases, Leipzig University Medical Center, Leipzig, Germany
| | - Philipp Lutz
- Department of Internal Medicine I, University Hospital, University of Bonn, Bonn, Germany
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7
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Scheller J, Berg A, Moll JM, Floss DM, Jungesblut C. Current status and relevance of single nucleotide polymorphisms in IL-6-/IL-12-type cytokine receptors. Cytokine 2021; 148:155550. [PMID: 34217594 DOI: 10.1016/j.cyto.2021.155550] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 01/06/2023]
Abstract
Cytokines control immune related events and are critically involved in a plethora of patho-physiological processes including autoimmunity and cancer development. In rare cases, single nucleotide polymorphisms (SNPs) or single nucleotide variations (SNVs) in cytokine receptors eventually cause detrimental ligand-independent, constitutive activation of signal transduction. Most SNPs have, however, no or only marginal influences on gene expression, protein stability, localization and function and thereby only slightly affecting pathogenesis probability. The SNP database (dbSNP) is an archive for a broad collection of polymorphisms in which SNPs are categorized and marked with a locus accession number "reference SNP" (rs). Here, we engineered an algorithm to directly align dbSNP information to DNA and protein sequence information to clearly illustrate a genetic SNP landscape exemplified for all tall cytokine receptors of the IL-6/IL-12 family, including IL-23R, IL-12Rβ1, IL-12Rβ2, gp130, LIFR, OSMR and WSX-1. This information was complemented by a comprehensive literature summary and structural insights of relevant disease-causing SNPs in cytokine/cytokine receptor interfaces. In summary, we present a general strategy with potential to apply to other cytokine receptor networks.
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Affiliation(s)
- Jürgen Scheller
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.
| | - Anna Berg
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Jens M Moll
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Doreen M Floss
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
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8
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The Roles of IL-17, IL-21, and IL-23 in the Helicobacter pylori Infection and Gastrointestinal Inflammation: A Review. Toxins (Basel) 2021; 13:toxins13050315. [PMID: 33924897 PMCID: PMC8147029 DOI: 10.3390/toxins13050315] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/17/2022] Open
Abstract
Although millions of people have been infected by Helicobacter pylori (H. pylori), only a small proportion of infected individuals will develop adverse outcomes, ranging from chronic gastritis to gastric cancer. Advanced development of the disease has been well-linked with chronic inflammation, which is significantly impacted by the adaptive and humoral immunity response. From the perspective of cellular immunity, this review aims to clarify the intricate axis between IL-17, IL-21, and IL-23 in H. pylori-related diseases and the pathogenesis of inflammatory gastrointestinal diseases. CD4+ helper T (Th)-17 cells, with the hallmark pleiotropic cytokine IL-17, can affect antimicrobial activity and the pathogenic immune response in the gut environment. These circumstances cannot be separated, as the existence of affiliated cytokines, including IL-21 and IL-23, help maintain Th17 and accommodate humoral immune cells. Comprehensive understanding of the dynamic interaction between molecular host responses in H. pylori-related diseases and the inflammation process may facilitate further development of immune-based therapy.
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9
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Schmitt H, Neurath MF, Atreya R. Role of the IL23/IL17 Pathway in Crohn's Disease. Front Immunol 2021; 12:622934. [PMID: 33859636 PMCID: PMC8042267 DOI: 10.3389/fimmu.2021.622934] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/15/2021] [Indexed: 12/22/2022] Open
Abstract
Crohn's disease (CD) is a chronic relapsing disorder of the gastrointestinal tract and represents one of the main entities of inflammatory bowel disease (IBD). CD affects genetically susceptible patients that are influenced by environmental factors and the intestinal microbiome, which results in excessive activation of the mucosal immune system and aberrant cytokine responses. Various studies have implicated the pro-inflammatory cytokines IL17 and IL23 in the pathogenesis of CD. IL23 is a member of the IL12 family of cytokines and is able to enhance and affect the expansion of pathogenic T helper type 17 (Th17) cells through various mechanisms, including maintenance of Th17 signature genes, upregulation of effector genes or suppression of repressive factors. Moreover, IL17 and IL23 signaling is able to induce a cascade of pro-inflammatory molecules like TNF, IFNγ, IL22, lymphotoxin, IL1β and lipopolysaccharide (LPS). Here, IL17A and TNF are known to mediate signaling synergistically to drive expression of inflammatory genes. Recent advances in understanding the immunopathogenetic mechanisms underlying CD have led to the development of new biological therapies that selectively intervene and inhibit inflammatory processes caused by pro-inflammatory mediators like IL17 and IL23. Recently published data demonstrate that treatment with selective IL23 inhibitors lead to markedly high response rates in the cohort of CD patients that failed previous anti-TNF therapy. Macrophages are considered as a main source of IL23 in the intestine and are supposed to play a key role in the molecular crosstalk with T cell subsets and innate lymphoid cells in the gut. The following review focuses on mechanisms, pathways and specific therapies in Crohn's disease underlying the IL23/IL17 pathway.
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Affiliation(s)
- Heike Schmitt
- First Department of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Erlangen, Germany
| | - Markus F. Neurath
- First Department of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Erlangen, Germany
| | - Raja Atreya
- First Department of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Erlangen, Germany
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10
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van Best N, Hornef MW. Early life host regulation of the mammalian enteric microbiota composition. Int J Med Microbiol 2021; 311:151498. [PMID: 33774478 DOI: 10.1016/j.ijmm.2021.151498] [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: 09/11/2020] [Revised: 02/23/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022] Open
Abstract
The enteric microbiota exerts a major influence on the host. It promotes food degradation, nutrient absorption, immune maturation and protects from infection with pathogenic microorganisms. However, certain compositional alterations also enhance the risk to develop metabolic, inflammatory and immune-mediated diseases. This suggests that the enteric microbiota is subject to strong evolutionary pressure. Here, we hypothesize that endogenous, genetically determined mechanisms exist that shape and optimize the enteric microbiota. We discuss that the postnatal period as the starting point of the host-microbial interaction bears the greatest chance to identify such regulatory mechanisms and report on two recently identified ways how the neonate host favours or disfavours colonization by certain bacteria and thereby manipulates the postnatally emerging bacterial ecosystem. A better understanding of these mechanisms might ultimately help to define the features of a beneficial enteric microbiota and to develop interventional strategies to overcome adverse microbiota alterations.
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Affiliation(s)
- Niels van Best
- Institute of Medical Microbiology, RWTH University Hospital Aachen, RWTH University Aachen, Aachen, Germany; Department of Medical Microbiology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
| | - Mathias W Hornef
- Institute of Medical Microbiology, RWTH University Hospital Aachen, RWTH University Aachen, Aachen, Germany.
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11
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Yan LR, Lv Z, Jing JJ, Yuan Y, Xu Q. Single nucleotide polymorphisms of whole genes and atrophic gastritis susceptibility:a systematic review and meta-analysis. Gene 2021; 782:145543. [PMID: 33667608 DOI: 10.1016/j.gene.2021.145543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/29/2021] [Accepted: 02/18/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Atrophic gastritis (AG) is one of the important precancerous lesions of gastric cancer. Single nucleotide polymorphisms (SNPs) are closely related to AG susceptibility. However, the research conclusions on the predictive potential of SNPs are inconsistent. The study aims to retrospect the association between SNPs of whole genes and AG risk by meta-analysis. MATERIALS AND METHODS Up to April 29, 2020, a systematic literature search for the relationship of SNPs with AG susceptibility was performed utilizing PubMed, Web of Science and Chinese National Knowledge Infrastructure. The overall and stratified meta-analyses on extracted data were conducted by Stata11.2. RESULTS 33 case-control studies were enrolled containing 9951 AG patients and 17,252 healthy controls, and 17 SNPs in 12 different genes were systematically reviewed. The results indicated that 12 genes could be categorized based on their functions, including immune response, cell proliferation and apoptosis, and DNA damage repair. For the SNPs in immune response-related genes, the C allele of TLR1 rs4833095 T/C increased AG risk to 1.21-fold and the recessive model of TLR4 rs11536878 in the TLR gene family decreased AG susceptibility to 0.48-fold. The variant alleles of IL-10 rs1800871 (OR = 1.21) and IL-8 rs4073 (OR = 1.22) in the IL gene family were positively associated with AG risk. PSCA rs2294008 enhanced AG risk in all genetic models. SNPs associated with AG susceptibility were mainly focused on immune response-related genes. CONCLUSION These SNPs related to immune response could influence on AG risk and have potential to be AG predictive biomarkers. It is worth noting that the number of studies for each SNPs were insufficient due to the limited published researches and updated meta-analysis needs to be performed based on extensive relevant studies for more reliable results.
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Affiliation(s)
- Li-Rong Yan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Zhi Lv
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Jing-Jing Jing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China.
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China.
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12
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Potential Effects of Nutraceuticals in Retinopathy of Prematurity. Life (Basel) 2021; 11:life11020079. [PMID: 33499180 PMCID: PMC7912639 DOI: 10.3390/life11020079] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/15/2021] [Accepted: 01/16/2021] [Indexed: 02/07/2023] Open
Abstract
Retinopathy of prematurity (ROP), the most common cause of childhood blindness, is a hypoxia-induced eye disease characterized by retinal neovascularization. In the normal retina, a well-organized vascular network provides oxygen and nutrients as energy sources to maintain a normal visual function; however, it is disrupted when pathological angiogenesis is induced in ROP patients. Under hypoxia, inadequate oxygen and energy supply lead to oxidative stress and stimulate neovasculature formation as well as affecting the function of photoreceptors. In order to meet the metabolic needs in the developing retina, protection against abnormal vascular formation is one way to manage ROP. Although current treatments provide beneficial effects in reducing the severity of ROP, these invasive therapies may also induce life-long consequences such as systemic structural and functional complications as well as neurodevelopment disruption in the developing infants. Nutritional supplements for the newborns are a novel concept for restoring energy supply by protecting the retinal vasculature and may lead to better ROP management. Nutraceuticals are provided in a non-invasive manner without the developmental side effects associated with current treatments. These nutraceuticals have been investigated through various in vitro and in vivo methods and are indicated to protect retinal vasculature. Here, we reviewed and discussed how the use of these nutraceuticals may be beneficial in ROP prevention and management.
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Wang J, Liu H, Wang Y, Wu J, Wang C, Liu K, Qin Q. The Polymorphisms of Interleukin-12B Gene and Susceptibility to Inflammatory Bowel Diseases: A Meta-analysis and Trial Sequential Analysis. Immunol Invest 2021; 50:987-1006. [PMID: 33390082 DOI: 10.1080/08820139.2020.1863981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective: Inflammatory bowel disease (IBD) is a heterogeneous complex disease referring to two chronic disorders: Crohn's disease (CD) and ulcerative colitis (UC). To clarify the relationship between IL-12B gene polymorphisms and susceptibility to CD and UC, a meta-analysis was conducted.Methods: A comprehensive search of the PubMed, Web of Science, Embase and Cochrane databases was conducted up to Oct 2019. Studies evaluating the relationship between risk of IBD and variants of IL-12B (rs6887695, rs3212227 and rs10045431) were included. Odds ratio (OR) and 95% confidence interval (CI) were calculated. Trial sequential analysis (TSA) was implemented to estimate the required information size (RIS) and evaluate the credibility of the meta-analysis results.Results: Seventeen studies containing 9827 patients with CD, 7583 patients with UC and 16044 controls were included. The results showed significant association between rs6887695 polymorphism and susceptibility to CD (allele model: OR = 1.17, 95% CI: 1.12-1.22) and UC (allele model: OR = 1.16, 95% CI: 1.09-1.23), and "C" allele carriers had a higher risk, with TSA conclusive. For rs10045431, no significant association with CD susceptibility was identified, while a significantly increased risk in UC was found (allele mode: OR = 1.16, 95% CI: 1.07-1.25), both results were conclusive according to TSA. No significant association between rs3212227 and CD or UC susceptibility was found, and TSA research warranted further investigation to certify the results. No significant heterogeneity was found.Conclusion: IL-12B rs6887695 polymorphism was associated with increased risk of CD and UC, while IL-12B rs10045431 polymorphism might only be correlated with the risk of UC.Abbreviations: IBD: inflammatory bowel disease; CD: Crohn's disease; UC: ulcerative colitis; IL-12B: interleukin-12B; OR: odds ratio; CI: confidence interval; TSA: trial sequential analysis; RIS: required information size; DCs: dendritic cells; NK: nature killer; APCs: antigen-presenting cells; TNF: tumor necrosis factor; SNP: single nucleotide polymorphisms; HWE: Hardy-Weinberg equilibrium; NOS: Newcastle-Ottawa scale; RRR: relative risk reduction.
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Affiliation(s)
- Jing Wang
- Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Hong Liu
- Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yadan Wang
- Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Jing Wu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Canghai Wang
- Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Kuiliang Liu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Qin Qin
- Department of Prevention and Health Care, Zhongshan Hospital, Xiamen University, Xiamen, China
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Jefremow A, Neurath MF. All are Equal, Some are More Equal: Targeting IL 12 and 23 in IBD - A Clinical Perspective. Immunotargets Ther 2020; 9:289-297. [PMID: 33274187 PMCID: PMC7705252 DOI: 10.2147/itt.s282466] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/10/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic inflammatory diseases like inflammatory bowel diseases (IBD) or psoriasis represents a worldwide health burden. Researchers provided great achievements in understanding the origin of these diseases leading to improved therapeutic options. The discovery of cytokines like tumor necrosis factor-α or transforming growth factor-β are examples for these efforts. Interleukin 12 (IL 12) and interleukin 23 (IL 23) represent different important cytokines in this regard. They both belong to the interleukin 12 family and are related by sharing the subunit p40. Ustekinumab is an antibody that blocks p40 and thereby interleukins 12 and 23. Trials showed promising results in treating IBD patients with this drug. Consequently, new questions arose about the distinct features of IL 12 and 23. This review focuses on these interleukins regarding their functions in the healthy and inflamed gut and provides an overview about the results from in vitro and in vivo studies as well as clinical trials.
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Affiliation(s)
- André Jefremow
- Department of Medicine 1, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Markus F Neurath
- Department of Medicine 1, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
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15
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Tang L, Xu M. Candidate polymorphisms and susceptibility to inflammatory bowel disease: A systematic review and meta-analysis. Gene X 2020; 753:144814. [DOI: 10.1016/j.gene.2020.144814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/23/2020] [Indexed: 12/20/2022] Open
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16
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Zhao H, Qian YZ, Qian HH. Interleukin-12B gene rs6887695 and rs2288831 polymorphisms are associated with an increased risk of ulcerative colitis development in Chinese Han population: A case-control study. J Clin Lab Anal 2020; 34:e23472. [PMID: 32666631 PMCID: PMC7676187 DOI: 10.1002/jcla.23472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 05/19/2020] [Accepted: 06/25/2020] [Indexed: 12/22/2022] Open
Abstract
Background The association of the interleukin (IL)‐12B gene rs6887695 and rs2288831 polymorphisms with ulcerative colitis (UC) risk has been extensively investigated, but results are conflicting. In this study, we investigated potential link between the IL‐12B gene rs6887695 and rs2288831 polymorphisms and UC development in Chinese Han population. Material and Methods Genotyping was performed in 367 patients and 456 controls through polymerase chain reaction‐restriction fragment length polymorphism analysis. Plasma levels of IL‐12B were tested using an enzyme‐linked immunosorbent assay. Results We found that the IL‐12B gene rs6887695 and rs2288831 polymorphisms were related to a significantly increased risk of UC. Subgroup analyses revealed significant associations of the IL‐12B gene rs6887695 and rs2288831 polymorphisms with UC risk among females, consumers of alcohol, and those aged <40 years. Additionally, the rs6887695 and rs2288831 polymorphisms were associated with lesion location and UC treatment. Last, we found that these two polymorphisms were associated with IL‐12B levels. Conclusions The IL‐12B gene rs6887695 and rs2288831 polymorphisms were associated with a higher risk, and the clinical characteristics, of UC.
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Affiliation(s)
- Hui Zhao
- Department of Anorectal Surgery, Nanjing University of Chinese Medicine (Wuxi Clinical College of Integrated Traditional Chinese and Western Medicine Hospital Affiliated to Nanjing University of Chinese Medicine), Jiangsu, China
| | - Yun-Zhi Qian
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Hai-Hua Qian
- Department of Colorectal Surgery, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
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Colquhoun C, Duncan M, Grant G. Inflammatory Bowel Diseases: Host-Microbial-Environmental Interactions in Dysbiosis. Diseases 2020; 8:E13. [PMID: 32397606 PMCID: PMC7348996 DOI: 10.3390/diseases8020013] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 12/12/2022] Open
Abstract
Crohn's Disease (CD) and Ulcerative Colitis (UC) are world-wide health problems in which intestinal dysbiosis or adverse functional changes in the microbiome are causative or exacerbating factors. The reduced abundance and diversity of the microbiome may be a result of a lack of exposure to vital commensal microbes or overexposure to competitive pathobionts during early life. Alternatively, many commensal bacteria may not find a suitable intestinal niche or fail to proliferate or function in a protective/competitive manner if they do colonize. Bacteria express a range of factors, such as fimbriae, flagella, and secretory compounds that enable them to attach to the gut, modulate metabolism, and outcompete other species. However, the host also releases factors, such as secretory IgA, antimicrobial factors, hormones, and mucins, which can prevent or regulate bacterial interactions with the gut or disable the bacterium. The delicate balance between these competing host and bacteria factors dictates whether a bacterium can colonize, proliferate or function in the intestine. Impaired functioning of NOD2 in Paneth cells and disrupted colonic mucus production are exacerbating features of CD and UC, respectively, that contribute to dysbiosis. This review evaluates the roles of these and other the host, bacterial and environmental factors in inflammatory bowel diseases.
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Affiliation(s)
| | | | - George Grant
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK; (C.C.); (M.D.)
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18
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NFKB2 polymorphisms associate with the risk of developing rheumatoid arthritis and response to TNF inhibitors: Results from the REPAIR consortium. Sci Rep 2020; 10:4316. [PMID: 32152480 PMCID: PMC7062729 DOI: 10.1038/s41598-020-61331-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 02/07/2020] [Indexed: 12/07/2022] Open
Abstract
This study sought to evaluate the association of 28 single nucleotide polymorphisms (SNPs) within NFKB and inflammasome pathway genes with the risk of rheumatoid arthritis (RA) and response to TNF inhibitors (TNFi). We conducted a case-control study in a European population of 1194 RA patients and 1328 healthy controls. The association of potentially interesting markers was validated with data from the DANBIO (695 RA patients and 978 healthy controls) and DREAM (882 RA patients) registries. The meta-analysis of our data with those from the DANBIO registry confirmed that anti-citrullinated protein antibodies (ACPA)-positive subjects carrying the NFKB2rs11574851T allele had a significantly increased risk of developing RA (PMeta_ACPA + = 0.0006) whereas no significant effect was found in ACPA-negative individuals (PMeta_ACPA- = 0.35). An ACPA-stratified haplotype analysis including both cohorts (n = 4210) confirmed that ACPA-positive subjects carrying the NFKB2TT haplotype had an increased risk of RA (OR = 1.39, P = 0.0042) whereas no effect was found in ACPA-negative subjects (OR = 1.04, P = 0.82). The meta-analysis of our data with those from the DANBIO and DREAM registries also revealed a suggestive association of the NFKB2rs1056890 SNP with larger changes in DAS28 (OR = 1.18, P = 0.007). Functional experiments showed that peripheral blood mononuclear cells from carriers of the NFKB2rs1005044C allele (in LD with the rs1056890, r2 = 1.00) showed increased production of IL10 after stimulation with LPS (P = 0.0026). These results provide first evidence of a role of the NFKB2 locus in modulating the risk of RA in an ACPA-dependent manner and suggest its implication in determining the response to TNFi. Additional studies are now warranted to further validate these findings.
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19
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Genetic polymorphisms present in IL10, IL23R, NOD2, and ATG16L1 associated with susceptibility to inflammatory bowel disease in Mexican population. Eur J Gastroenterol Hepatol 2020; 32:10-16. [PMID: 31651650 DOI: 10.1097/meg.0000000000001540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Ulcerative colitis and Crohn's disease are the two clinical forms of inflammatory bowel disease (IBD). Diverse studies have shown the association of single nucleotide polymorphism (SNP) in molecules of the immune system and the occurrence of IBD. Here, several SNPs of the immune system with controversial results for their association with UC and CD were evaluated in a Mexican population. METHODS SNPs rs1800896, rs3024505 (IL-10); rs11209026 (IL23R); rs2066844, rs2066845 (NOD-2), and rs2241880 (ATG16L1) were assessed in 93 patients with IBD and 200 healthy controls by hybridization probes and quantitative PCR. RESULTS The AG genotype for rs1800896 was associated with an increased risk for both UC and CD (P = 0.005 and P = 0.026, respectively); whereas the AA genotype presents a negative association (P = 0.011 for UC, and 0.0038 for CD). For this SNP, G allele was associated with risk of UC (P = 0-043) but not for CD. For the rs3024505 in IL-10, T allele was associated with UC (P = 0.011). Moreover, this allele was associated with early onset of UC (P = 0.033) and with the use of steroid treatment (P = 0.019). No significant differences for NOD2 (rs2066844T and rs2066845C), IL23R (rs11209026), and ATG16L1 (rs22411880) were found between cases and controls and the homozygous TT genotype for rs2066844 and CC for rs2066845 were not observed. CONCLUSION Our results show both genotypic and phenotypic associations of IL-10 SNPs with IBD but not with the other immune-related SNPs studied in this Mexican cohort.
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20
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Lam S, Zuo T, Ho M, Chan FKL, Chan PKS, Ng SC. Review article: fungal alterations in inflammatory bowel diseases. Aliment Pharmacol Ther 2019; 50:1159-1171. [PMID: 31648369 DOI: 10.1111/apt.15523] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/08/2019] [Accepted: 09/11/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Emerging data suggest that alterations in gut fungi may be associated with the pathogenesis of inflammatory bowel disease (IBD). In healthy individuals, gut commensal fungi act synergistically with other members of the microbiota to maintain homeostasis but their role in IBD is less clear. AIM To review the role of gut fungi and their trans-kingdom interactions with bacteria in IBD METHODS: A literature search was conducted on Ovid and Pubmed to select relevant animal and human studies that have reported fungi and IBD. RESULTS There is an increased total fungal load particularly of Candida and Malassezia species in the faeces and mucosa of Crohn's disease patients, and a lower fungal diversity in the faeces of ulcerative colitis patients. Caspase recruitment domain-containing protein (CARD)-9 polymorphism in Crohn's disease patients favours Malassezia colonisation that worsens gut inflammation. Diet high in carbohydrates increased the total abundance of Candida species, whereas protein-rich diet had the opposite effect. Anti-fungal therapies are mostly used to treat Candida albicans or Histoplasma capsulatum infections in IBD, whereas pilot studies of supplementing fungal probiotics Saccharomycopsis fibuligera, Saccharomyces boulardii and Saccharomyces cerevisiae CNCM I-3856 strain showed therapeutic effects in IBD. CONCLUSIONS Gut fungi are altered in patients with Crohn's disease and ulcerative colitis. Modulation of the fungal microbiota can be considered as a therapeutic approach for IBD. Future research should focus on understanding how the fungal microbiota interacts with other components of the gut microbiota in association with the pathogenesis and development of IBD.
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Affiliation(s)
- Siu Lam
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine and Therapeutics, Institute of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China.,Department of Microbiology, The Chinese University of Hong Kong, Hong Kong, China
| | - Tao Zuo
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine and Therapeutics, Institute of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Martin Ho
- Department of Life Sciences, Imperial College London, London, UK
| | - Francis K L Chan
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine and Therapeutics, Institute of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Paul K S Chan
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Microbiology, The Chinese University of Hong Kong, Hong Kong, China
| | - Siew C Ng
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine and Therapeutics, Institute of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
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21
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Hornef MW, Torow N. 'Layered immunity' and the 'neonatal window of opportunity' - timed succession of non-redundant phases to establish mucosal host-microbial homeostasis after birth. Immunology 2019; 159:15-25. [PMID: 31777069 PMCID: PMC6904599 DOI: 10.1111/imm.13149] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 12/12/2022] Open
Abstract
The intricate host–microbial interaction and the overwhelming complexity of the mucosal immune system in the adult host raise the question of how this system is initially established. Here, we propose the implementation of the concept of the ‘postnatal window of opportunity’ into the model of a ‘layered immunity’ to explain how the newborn's mucosal immune system matures and how host–microbial immune homeostasis is established after birth. We outline the concept of a timed succession of non‐redundant phases during postnatal immune development and discuss the possible influence of external factors and conditions.
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Affiliation(s)
- Mathias W Hornef
- Institute of Medical Microbiology, RWTH University Hospital Aachen, Aachen, Germany
| | - Natalia Torow
- Institute of Medical Microbiology, RWTH University Hospital Aachen, Aachen, Germany
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22
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Pu Z, Che Y, Zhang W, Sun H, Meng T, Xie H, Cao L, Hao H. Dual roles of IL-18 in colitis through regulation of the function and quantity of goblet cells. Int J Mol Med 2019; 43:2291-2302. [PMID: 31017261 PMCID: PMC6488178 DOI: 10.3892/ijmm.2019.4156] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/13/2019] [Indexed: 01/30/2023] Open
Abstract
The main aim of the present study was to investigate the dual roles and mechanism of interleukin (IL)‑18 in dextran sulfate sodium (DSS)‑induced colitis. Firstly, meta‑analysis was used to explore whether the levels of IL‑18 were different in patients with colon cancer or inflammatory bowel disease. The results demonstrated that IL‑18 (rs187238, ‑137G/C) increased the incidence rate of colon cancer in patients, while IL‑18 (rs187238, ‑137G/C) decreased the incidence rate of ulcerative colitis or Crohn's disease in patients. Therefore, IL‑18 (rs187238, ‑137G/C) may have a dual function in colitis. Next, the functional role of IL‑18 in colitis was further investigated, by use of a DSS‑induced colitis mouse model. Pre‑treatment of the mice with IL‑18 increased body weight, augmented colon length, reduced inflammatory infiltration, promoted mucin (Muc)‑2 expression, increased the function and quantity of goblet cells and increased the mRNA levels of resistin‑like molecule (RELM) β and trefoil factor family (TFF) 3 in mice with DSS‑induced colitis, through the IL‑22/STAT3 pathway. By contrast, treatment with IL‑18 at later stages of the disease reduced body weight, decreased colon length, enhanced inflammatory infiltration and reduced Muc‑2 expression, decreased the function and quantity of goblet cells and inhibited the mRNA levels of RELMβ and TFF3 in mice with DSS‑induced colitis. In conclusion, IL‑18 served a dual function in colitis by regulating the function of goblet cells. The anti‑inflammatory effects of IL‑18 were observed in the early stage of colitis‑induced inflammation, while the pro‑inflammatory effects were observed in the later stages of the disease.
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Affiliation(s)
- Zhichen Pu
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu 210009
- Department of Clinical Pharmacy, Yijishan Hospital of Wannan Medical College, Anhui Provincial Center for Drug Clinical Evaluation, Wuhu, Anhui 241001
| | - Yuan Che
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu 210009
| | - Weiwei Zhang
- Department of Pharmacy, Fourth People's Hospital of Maanshan, Maanshan, Anhui 243031, P.R. China
| | - Hui Sun
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu 210009
| | - Tuo Meng
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu 210009
| | - Haitang Xie
- Department of Clinical Pharmacy, Yijishan Hospital of Wannan Medical College, Anhui Provincial Center for Drug Clinical Evaluation, Wuhu, Anhui 241001
| | - Lijuan Cao
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu 210009
| | - Haiping Hao
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu 210009
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Bank S, Julsgaard M, Abed OK, Burisch J, Broder Brodersen J, Pedersen NK, Gouliaev A, Ajan R, Nytoft Rasmussen D, Honore Grauslund C, Roug S, Galsgaard J, Sprogøe Høyer Finsen D, Lindby K, Sørensen J, Larsen L, Rohr Andersen M, Brandslund I, Thomassen M, Green A, Bo Bojesen A, Bek Sørensen S, Vogel U, Andersen V. Polymorphisms in the NFkB, TNF-alpha, IL-1beta, and IL-18 pathways are associated with response to anti-TNF therapy in Danish patients with inflammatory bowel disease. Aliment Pharmacol Ther 2019; 49:890-903. [PMID: 30811631 DOI: 10.1111/apt.15187] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/02/2018] [Accepted: 01/19/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Anti-tumor necrosis factor-α (TNF-α) is used for the treatment of severe cases of IBD, including Crohn's disease (CD) and ulcerative colitis (UC). However, one-third of the patients do not respond to the treatment. We have previously investigated whether single nucleotide polymorphisms (SNPs) in genes involved in inflammation were associated with response to anti-TNF therapy among patients with CD or UC. AIM A new cohort of patients was established for replication of the previous findings and to identify new SNPs associated with anti-TNF response. METHODS Fifty-three SNPs assessed previously in cohort 1 (482 CD and 256 UC patients) were genotyped in cohort 2 (587 CD and 458 UC patients). The results were analysed using logistic regression (adjusted for age and gender). RESULTS Ten SNPs were associated with anti-TNF response either among patients with CD (TNFRSF1A(rs4149570) (OR: 1.92, 95% CI: 1.02-3.60, P = 0.04), IL18(rs187238) (OR: 1.35, 95% CI: 1.00-1.82, P = 0.05), and JAK2(rs12343867) (OR: 1.35, 95% CI: 1.02-1.78, P = 0.03)), UC (TLR2(rs11938228) (OR: 0.55, 95% CI: 0.33-0.92, P = 0.02), TLR4(rs5030728) (OR: 2.23, 95% CI: 1.24-4.01, P = 0.01) and (rs1554973) (OR: 0.49, 95% CI: 0.27-0.90, P = 0.02), NFKBIA(rs696) (OR: 1.45, 95% CI: 1.06-2.00, P = 0.02), and NLRP3(rs4612666) (OR: 0.63, 95% CI: 0.44-0.91, P = 0.01)) or in the combined cohort of patient with CD and UC (IBD) (TLR4(rs5030728) (OR: 1.46, 95% CI: 1.01-2.11, P = 0.04) and (rs1554973)(OR: 0.80, 95% CI: 0.65-0.98, P = 0.03), NFKBIA(rs696) (OR: 1.25, 95% CI: 1.01-1.54, P = 0.04), NLRP3(rs4612666) (OR: 0.73, 95% CI: 0.57-0.95, P = 0.02), IL1RN(rs4251961) (OR: 0.81, 95% CI: 0.66-1.00, P = 0.05), IL18(rs1946518) (OR: 1.24, 95% CI: 1.01-1.53, P = 0.04), and JAK2(rs12343867) (OR: 1.24, 95% CI: 1.01-1.53, P = 0.04)). CONCLUSIONS The results support that polymorphisms in genes involved in the regulation of the NFκB pathway (TLR2, TLR4, and NFKBIA), the TNF-α signalling pathway (TNFRSF1A), and other cytokine pathways (NLRP3, IL1RN, IL18, and JAK2) were associated with response to anti-TNF therapy. Our multi-SNP model predicted response rate of more than 82% (in 9% of the CD patients) and 75% (in 15% of the UC patients), compared to 71% and 64% in all CD and UC patients, respectively. More studies are warranted to predict response for use in the clinic.
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Neurath MF. IL-23 in inflammatory bowel diseases and colon cancer. Cytokine Growth Factor Rev 2018; 45:1-8. [PMID: 30563755 DOI: 10.1016/j.cytogfr.2018.12.002] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 02/07/2023]
Abstract
Studies in recent years have identified a pivotal role of the cytokine IL-23 in the pathogenesis of inflammatory bowel diseases (IBD: Crohn´s disease, ulcerative colitis) and colitis-associated colon cancer. Genetic studies revealed that subgroups of IBD patients have single nucleotide polymorphisms in the IL-23R gene suggesting that IL-23R signaling affects disease susceptibility. Furthermore, increased production of IL-23 by macrophages, dendritic cells or granulocytes has been observed in various mouse models of colitis, colitis-associated cancer and IBD patients. Moreover, in several murine models of colitis, suppression of IL-12/IL-23 p40, IL-23 p19 or IL-23R function led to marked suppression of gut inflammation. This finding was associated with reduced activation of IL-23 target cells such as T helper 17 cells, innate lymphoid cells type 3, granulocytes and natural killer cells as well as with impaired production of proinflammatory cytokines. Based on these findings, targeting of IL-23 emerges as important concept for suppression of gut inflammation and inflammation-associated cancer growth. Consistently, neutralizing antibodies against IL-12/IL-23 p40 and IL-23 p19 have been successfully used in clinical trials for therapy of Crohn´s disease and pilot studies in ulcerative colitis are ongoing. These findings underline the crucial regulatory role of IL-23 in chronic intestinal inflammation and colitis-associated cancer and indicate that therapeutic strategies aiming at IL-23 blockade may be of key relevance for future therapy of IBD patients.
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Affiliation(s)
- Markus F Neurath
- Department of Medicine 1, University of Erlangen-Nürnberg, Kussmaul Research Campus & Ludwig Demling Endoscopy Center of Excellence, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), University of Erlangen-Nürnberg, Germany.
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25
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Sode J, Bank S, Vogel U, Andersen PS, Sørensen SB, Bojesen AB, Andersen MR, Brandslund I, Dessau RB, Hoffmann HJ, Glintborg B, Hetland ML, Locht H, Heegaard NH, Andersen V. Genetically determined high activities of the TNF-alpha, IL23/IL17, and NFkB pathways were associated with increased risk of ankylosing spondylitis. BMC MEDICAL GENETICS 2018; 19:165. [PMID: 30208882 PMCID: PMC6136164 DOI: 10.1186/s12881-018-0680-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 09/03/2018] [Indexed: 02/07/2023]
Abstract
Background Ankylosing spondylitis (AS) results from the combined effects of susceptibility genes and environmental factors. Polymorphisms in genes regulating inflammation may explain part of the heritability of AS. Methods Using a candidate gene approach in this case-control study, 51 mainly functional single nucleotide polymorphisms (SNPs) in genes regulating inflammation were assessed in 709 patients with AS and 795 controls. Data on the patients with AS were obtained from the DANBIO registry where patients from all of Denmark are monitored in routine care during treatment with conventional and biologic disease modifying anti-rheumatic drugs (bDMARDs). The results were analyzed using logistic regression (adjusted for age and sex). Results Nine polymorphisms were associated with risk of AS (p < 0.05). The polymorphisms were in genes regulating a: the TNF-α pathway (TNF -308 G > A (rs1800629), and − 238 G > A (rs361525); TNFRSF1A -609 G > T (rs4149570), and PTPN22 1858 G > A (rs2476601)), b: the IL23/IL17 pathway (IL23R G > A (rs11209026), and IL18–137 G > C (rs187238)), or c: the NFkB pathway (TLR1 743 T > C (rs4833095), TLR4 T > C (rs1554973), and LY96–1625 C > G (rs11465996)). After Bonferroni correction the homozygous variant genotype of TLR1 743 T > C (rs4833095) (odds ratios (OR): 2.59, 95% confidence interval (CI): 1.48–4.51, p = 0.04), and TNFRSF1A -609 G > T (rs4149570) (OR: 1.79, 95% CI: 1.31–2.41, p = 0.01) were associated with increased risk of AS and the combined homozygous and heterozygous variant genotypes of TNF -308 G > A (rs1800629) (OR: 0.56, 95% CI: 0.44–0.72, p = 0.0002) were associated with reduced risk of AS. Conclusion We replicated associations between AS and the polymorphisms in TNF (rs1800629), TNFRSF1A (rs4149570), and IL23R (rs11209026). Furthermore, we identified novel risk loci in TNF (rs361525), IL18 (rs187238), TLR1 (rs4833095), TLR4 (rs1554973), and LY96 (rs11465996) that need validation in independent cohorts. The results suggest that genetically determined high activity of the TNF-α, IL23/IL17, and NFkB pathways increase risk of AS.
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Affiliation(s)
- Jacob Sode
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark.,Department of Autoimmunology and Biomarkers, Statens Serum Institut, Copenhagen, Denmark.,Department of Rheumatology, Frederiksberg Hospital, Frederiksberg, Denmark.,Department of Rheumatology, Skåne University Hospital, Lund, Sweden
| | - Steffen Bank
- Focused Research Unit for Molecular Diagnostic and Clinical Research, Hospital of Southern Jutland, Aabenraa, Denmark. .,Medical Department, Viborg Regional Hospital, Viborg, Denmark.
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Paal Skytt Andersen
- Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark.,Veterinary Disease Biology, University of Copenhagen, Copenhagen, Denmark
| | - Signe Bek Sørensen
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark.,Focused Research Unit for Molecular Diagnostic and Clinical Research, Hospital of Southern Jutland, Aabenraa, Denmark.,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Anders Bo Bojesen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, Hospital of Southern Jutland, Aabenraa, Denmark
| | - Malene Rohr Andersen
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Hellerup, Denmark
| | - Ivan Brandslund
- Department of Biochemistry, Hospital of Lillebaelt, Vejle, Denmark
| | - Ram Benny Dessau
- Department of Clinical Microbiology, Slagelse Hospital, Slagelse, Denmark
| | - Hans Jürgen Hoffmann
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Respiratory Diseases B, Aarhus University Hospital, Aarhus, Denmark
| | - Bente Glintborg
- Department of Rheumatology, Gentofte and Herlev Hospital, Hellerup, Denmark.,The DANBIO Registry, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark
| | - Merete Lund Hetland
- The DANBIO Registry, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Henning Locht
- Department of Rheumatology, Frederiksberg Hospital, Frederiksberg, Denmark
| | - Niels Henrik Heegaard
- Department of Autoimmunology and Biomarkers, Statens Serum Institut, Copenhagen, Denmark.,Clinical Biochemistry, Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Vibeke Andersen
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark.,Focused Research Unit for Molecular Diagnostic and Clinical Research, Hospital of Southern Jutland, Aabenraa, Denmark.,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,OPEN Odense Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
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26
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Association of interleukin 6, interleukin 7 receptor alpha, and interleukin 12B gene polymorphisms with multiple sclerosis. Acta Neurol Belg 2018; 118:493-501. [PMID: 30069682 DOI: 10.1007/s13760-018-0994-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 07/25/2018] [Indexed: 10/28/2022]
Abstract
Pro-inflammatory and anti-inflammatory cytokines have been shown to play a crucial role in the pathophysiology of multiple sclerosis (MS). We investigated the association between interleukin (IL) IL6-174 G/C (rs1800795), IL7RA C/T (rs6897932), and IL-12B A1188C (rs3212227) gene polymorphisms (SNPs) and MS. The study consisted of 297 unrelated MS patients and 135 healthy individuals. In IL6-174G/C (rs1800795), a significant association between the C allele and MS risk [OR 1.41, 95% CI (1.05-1.92); P = 0.025] was found. Carriage of genotypes CC and CG were more common in MS patients [OR 1.58, 95% CI (1.04-2.39); P = 0.031] and also in female MS patients [OR 1.68, 95% CI (1.02-2.79); P = 0.043]. However, after applying Bonferroni's correction the differences did not remain significant. No significant association between the IL7RA C/T (rs6897932) and IL12B A1188C (rs3212227) gene polymorphisms and MS susceptibility was observed. Regarding IL-12B A1188C (rs3212227), a significant association between the CC genotype and MS progression, expressed as MSSS, was demonstrated in the female MS group. Our results indicate that the distribution of IL6-174G/C (rs1800795) SNP was marginally associated with MS susceptibility. We also showed that IL-12B A1188C (rs3212227) can contribute to the progression of the disease in the Czech population.
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27
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Fulde M, Sommer F, Chassaing B, van Vorst K, Dupont A, Hensel M, Basic M, Klopfleisch R, Rosenstiel P, Bleich A, Bäckhed F, Gewirtz AT, Hornef MW. Neonatal selection by Toll-like receptor 5 influences long-term gut microbiota composition. Nature 2018; 560:489-493. [PMID: 30089902 DOI: 10.1038/s41586-018-0395-5] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 07/05/2018] [Indexed: 11/09/2022]
Abstract
Alterations in enteric microbiota are associated with several highly prevalent immune-mediated and metabolic diseases1-3, and experiments involving faecal transplants have indicated that such alterations have a causal role in at least some such conditions4-6. The postnatal period is particularly critical for the development of microbiota composition, host-microbe interactions and immune homeostasis7-9. However, the underlying molecular mechanisms of this neonatal priming period have not been defined. Here we report the identification of a host-mediated regulatory circuit of bacterial colonization that acts solely during the early neonatal period but influences life-long microbiota composition. We demonstrate age-dependent expression of the flagellin receptor Toll-like receptor 5 (TLR5) in the gut epithelium of neonate mice. Using competitive colonization experiments, we demonstrate that epithelial TLR5-mediated REG3γ production is critical for the counter-selection of colonizing flagellated bacteria. Comparative microbiota transfer experiments in neonate and adult wild-type and Tlr5-deficient germ-free mice reveal that neonatal TLR5 expression strongly influences the composition of the microbiota throughout life. Thus, the beneficial microbiota in the adult host is shaped during early infancy. This might explain why environmental factors that disturb the establishment of the microbiota during early life can affect immune homeostasis and health in adulthood.
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Affiliation(s)
- Marcus Fulde
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.,Institute of Microbiology and Epizootics, Department of Veterinary Medicine at the Freie Universität Berlin, Berlin, Germany
| | - Felix Sommer
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Institute of Medicine, University of Gothenburg and Sahlgrenska University Hospital, Gothenburg, Sweden.,Institute of Clinical Molecular Biology (IKMB), Kiel University, Kiel, Germany
| | - Benoit Chassaing
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA.,Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Kira van Vorst
- Institute of Microbiology and Epizootics, Department of Veterinary Medicine at the Freie Universität Berlin, Berlin, Germany
| | - Aline Dupont
- Institute for Medical Microbiology, RWTH University Hospital Aachen, Aachen, Germany
| | - Michael Hensel
- Division of Microbiology, University of Osnabrück, Osnabrück, Germany
| | - Marijana Basic
- Institute for Laboratory Animal Science, Hannover Medical School, Hannover, Germany
| | - Robert Klopfleisch
- Institute of Veterinary Pathology, Department of Veterinary Medicine at the Freie Universität Berlin, Berlin, Germany
| | - Philip Rosenstiel
- Institute of Clinical Molecular Biology (IKMB), Kiel University, Kiel, Germany
| | - André Bleich
- Institute for Laboratory Animal Science, Hannover Medical School, Hannover, Germany
| | - Fredrik Bäckhed
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Institute of Medicine, University of Gothenburg and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Andrew T Gewirtz
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Mathias W Hornef
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany. .,Institute for Medical Microbiology, RWTH University Hospital Aachen, Aachen, Germany.
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28
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Nedoszytko B, Lange M, Renke J, Niedoszytko M, Zabłotna M, Gleń J, Nowicki R. The Possible Role of Gene Variant Coding Nonfunctional Toll-Like Receptor 2 in the Pathogenesis of Mastocytosis. Int Arch Allergy Immunol 2018; 177:80-86. [PMID: 29909409 DOI: 10.1159/000489343] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 04/17/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Data on the genetic predisposition to mastocytosis are scarce. The aim of this work was to study the association of single nucleotide polymorphisms of Toll-like receptor (TLR)-2, TLR-4, and TLR-9 genes in Polish patients with mastocytosis. OBJECTIVES The study comprised 137 patients with mastocytosis (102 cutaneous [60 children and 42 adults] and 35 systemic cases); 171 disease-free individuals were used as controls. METHOD The frequency of polymorphisms R753Q (rs5743708) of TLR-2, 896 A>G (rs496790) of TLR-4, and -1237C>T (rs5743836) of TLR-9 genes were determined with the use of the amplification refractory mutation system polymerase chain reaction method. RESULTS It was found that the R753Q TLR-2 gene polymorphism was significantly more frequent in patients with mastocytosis in comparison to healthy controls (p = 0.037) and in the group of SM versus controls (p = 0.0076). The presence in the genotype 753Q variant of TLR-2 gene increased the risk of mastocytosis more than 2-fold (OR 2.51; p = 0.04), and the risk of SM more than 4-fold (OR 4.22; p = 0.01). TLR-4 and TLR-9 polymorphisms were not associated with mastocytosis. CONCLUSIONS Our results suggest that the R753Q polymorphism of the TLR-2 gene may be involved in the pathogenesis of mastocytosis.
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Affiliation(s)
- Bogusław Nedoszytko
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Magdalena Lange
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Joanna Renke
- Department of General and Medical Biochemistry, University of Gdansk, Gdansk, Poland
| | - Marek Niedoszytko
- Department of Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Monika Zabłotna
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Jolanta Gleń
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Roman Nowicki
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
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29
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Klimesova K, Jiraskova Zakostelska Z, Tlaskalova-Hogenova H. Oral Bacterial and Fungal Microbiome Impacts Colorectal Carcinogenesis. Front Microbiol 2018; 9:774. [PMID: 29731748 PMCID: PMC5920026 DOI: 10.3389/fmicb.2018.00774] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 04/05/2018] [Indexed: 12/31/2022] Open
Abstract
Host's physiology is significantly influenced by microbiota colonizing the epithelial surfaces. Complex microbial communities contribute to proper mucosal barrier function, immune response, and prevention of pathogen invasion and have many other crucial functions. The oral cavity and large intestine are distant parts of the digestive tract, both heavily colonized by commensal microbiota. Nevertheless, they feature different proportions of major bacterial and fungal phyla, mostly due to distinct epithelial layers organization and different oxygen levels. A few obligate anaerobic strains inhabiting the oral cavity are involved in the pathogenesis of oral diseases. Interestingly, these microbiota components are also enriched in gut inflammatory and tumor tissue. An altered microbiota composition - dysbiosis - and formation of polymicrobial biofilms seem to play important roles in the development of oral diseases and colorectal cancer. In this review, we describe the differences in composition of commensal microbiota in the oral cavity and large intestine and the mechanisms by which microbiota affect the inflammatory and carcinogenic response of the host.
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Affiliation(s)
- Klara Klimesova
- Laboratory of Cellular and Molecular Immunology, Institute of Microbiology of the CAS, Prague, Czechia
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30
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Gao J, Wei L, Wei J, Yao G, Wang L, Wang M, Liu X, Dai C, Jin T, Dai Z, Fu R. TLR1 polymorphism rs4833095 as a risk factor for IgA nephropathy in a Chinese Han population: A case-control study. Oncotarget 2018; 7:83031-83039. [PMID: 27806314 PMCID: PMC5347750 DOI: 10.18632/oncotarget.12965] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 10/12/2016] [Indexed: 12/26/2022] Open
Abstract
Toll-like receptors (TLRs) are a family of transmembrane receptors, and play a vital role in recognizing invading pathogens and activating innate immunity. Previous studies indicated that TLR1 single nucleotide polymorphisms (SNPs) might be associated with the risk of IgA nephropathy (IgAN). This study aims to investigate the relationship between TLR1 SNPs (rs4833095 and rs5743557) and IgAN in a Chinese Han population. This case-control study included 351 patients with IgAN and 310 healthy controls. Two SNPs (rs4833095 and rs5743557) of TLR1 were genotyped by Sequenom MassARRAY. Odds ratios (OR) with 95% confidence intervals (CI) were used to assess the relationship with IgAN. We found that both allele and genotype frequencies of rs5743557 were not associated with IgAN risk. Rs4833095 increased IgAN risk compared with controls in the allele, dominant and log-additive models (P = 0.04, 0.04 and 0.03, respectively). Further haplotype analysis revealed that the Trs4833095Trs5743557 haplotype may be a risk factor for IgAN (OR = 1.28; 95% CI = 1.01–1.63; P = 0.046). Furthermore, rs4833095 was associated with Lee's grades (OR = 1.75; 95% CI = 1.03–2.96; P = 0.04). However, there was no significant association between the genotype distributions of rs5743557 and clinical parameters of IgAN such as gender, 24 hour urine protein, blood pressure, and Lee's grades. Taken together, these findings suggest that the TLR1 rs4833095 polymorphism may play a role in the development and progression of IgAN.
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Affiliation(s)
- Jie Gao
- Department of Nephrology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Linting Wei
- Department of Nephrology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Jiali Wei
- Department of Nephrology, Hainan general hospital, Haikou 570311, China
| | - Ganglian Yao
- Department of Nephrology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Li Wang
- Department of Nephrology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Meng Wang
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Xinghan Liu
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Cong Dai
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Tianbo Jin
- National Engineering Research Center for Miniaturized Detection Systems, School of Life Sciences, Northwest University, Xi'an 710069, China
| | - Zhijun Dai
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Rongguo Fu
- Department of Nephrology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
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Toll-Like Receptors: Regulators of the Immune Response in the Human Gut. Nutrients 2018; 10:nu10020203. [PMID: 29438282 PMCID: PMC5852779 DOI: 10.3390/nu10020203] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 02/08/2018] [Accepted: 02/09/2018] [Indexed: 12/28/2022] Open
Abstract
Toll-like receptors (TLRs) are powerful molecular regulators by which the immune system may "sense" the environment and protect the host from pathogens or endogenous threats. In mammalian cells, several TLRs were identified with a tissue and cell type-specific distribution. Understanding the functions of specific TLRs is crucial for the development and discovery of compounds useful to maintaining or re-establishing homeostasis in the gastrointestinal tract (GIT). Due to their relevance in regulating the inflammatory response in the GIT, we will focus here on TLR2, TLR4, and TLR5. In particular, we describe (a) the molecular pathways activated by the stimulation of these receptors with their known bacterial ligands; (b) the non-bacterial ligands known to interact directly with TLR2 and TLR4 and their soluble forms. The scope of this minireview is to highlight the importance of bacterial and non-bacterial compounds in affecting the gut immune functions via the activation of the TLRs.
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32
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Kordjazy N, Haj-Mirzaian A, Haj-Mirzaian A, Rohani MM, Gelfand EW, Rezaei N, Abdolghaffari AH. Role of toll-like receptors in inflammatory bowel disease. Pharmacol Res 2017; 129:204-215. [PMID: 29155256 DOI: 10.1016/j.phrs.2017.11.017] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/05/2017] [Accepted: 11/14/2017] [Indexed: 12/15/2022]
Abstract
Inflammatory bowel disease (IBD) is the chronic inflammation of the gastrointestinal tract. Recently, studies of the interplay between the adaptive and innate immune responses have provided a better understanding of the immunopathogenesis of inflammatory disorders such as IBD, as well as identification of novel targets for more potent interventions. Toll-like receptors (TLRs) are a class of proteins that play a significant role in the innate immune system and are involved in inflammatory processes. Activation of TLR signal transduction pathways lead to the induction of numerous genes that function in host defense, including those for inflammatory cytokines, chemokines, and antigen presenting molecules. It was proposed that TLR mutations and dysregulation are major contributing factors to the predisposition and susceptibility to IBD. Thus, modulating TLRs represent an innovative immunotherapeutic approach in IBD therapy. This article outlines the role of TLRs in IBD, focusing on both animal and human studies; the role of TLR-targeted agonists or antagonists as potential therapeutic agents in the different stages of the disease is discussed.
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Affiliation(s)
- Nastaran Kordjazy
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Arvin Haj-Mirzaian
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Shahid Beheshti Universtity of Medical Sciences, Tehran, Iran
| | - Arya Haj-Mirzaian
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mojtaba Rohani
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Erwin W Gelfand
- Division of Cell Biology, Department of Pediatrics, National Jewish Health, Denver, CO, USA
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Boston, MA, USA.
| | - Amir Hossein Abdolghaffari
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Tehran, Iran; Department of Pharmacology, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran; Department of Toxicology and Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran; Gastrointestinal Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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Decursin and decursinol angelate: molecular mechanism and therapeutic potential in inflammatory diseases. Inflamm Res 2017; 67:209-218. [PMID: 29134229 DOI: 10.1007/s00011-017-1114-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/02/2017] [Accepted: 11/06/2017] [Indexed: 01/17/2023] Open
Abstract
Epidemiological studies have shown that inflammation plays a critical role in the development and progression of various chronic diseases, including cancers, neurological diseases, hepatic fibrosis, diabetic retinopathy, and vascular diseases. Decursin and decursinol angelate (DA) are pyranocoumarin compounds obtained from the roots of Angelica gigas. Several studies have described the anti-inflammatory effects of decursin and DA. Decursin and DA have shown potential anti-inflammatory activity by modulating growth factors such as vascular endothelial growth factor, transcription factors such as signal transducer and activator of transcription 3 and nuclear factor kappa-light-chain-enhancer of activated B cells, cellular enzymes including matrix metalloproteinases cyclooxygenase, and protein kinases such as extracellular receptor kinase, phosphatidylinositol-3-kinase, and protein kinase C. These compounds have the ability to induce apoptosis by activating pro-apoptotic proteins and the caspase cascade, and reduced the expression of anti-apoptotic proteins such as B-cell lymphoma 2 and B-cell lymphoma-extra-large. Interaction with multiple molecular targets and cytotoxic effects, these two compounds are favorable candidates for treating various chronic inflammatory diseases such as cancers (prostate, breast, leukemia, cervical, and myeloma), rheumatoid arthritis, diabetic retinopathy, hepatic fibrosis, osteoclastogenesis, allergy, and Alzheimer's disease. We have summarized the preliminary studies regarding the biological effects of decursin and DA. In this review, we will also highlight the functions of coumarin compounds that can be translated to a clinical practice for the treatment and prevention of various inflammatory ailments.
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Alam R, Abdolmaleky HM, Zhou JR. Microbiome, inflammation, epigenetic alterations, and mental diseases. Am J Med Genet B Neuropsychiatr Genet 2017; 174:651-660. [PMID: 28691768 PMCID: PMC9586840 DOI: 10.1002/ajmg.b.32567] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/12/2017] [Indexed: 12/16/2022]
Abstract
Major mental diseases such as autism, bipolar disorder, schizophrenia, and major depressive disorder are debilitating illnesses with complex etiologies. Recent findings show that the onset and development of these illnesses cannot be well described by the one-gene; one-disease approach. Instead, their clinical presentation is thought to result from the regulative interplay of a large number of genes. Even though the involvement of many genes are likely, up regulating and activation or down regulation and silencing of these genes by the environmental factors play a crucial role in contributing to their pathogenesis. Much of this interplay may be moderated by epigenetic changes. Similar to genetic mutations, epigenetic modifications such as DNA methylation, histone modifications, and RNA interference can influence gene expression and therefore may cause behavioral and neuronal changes observed in mental disorders. Environmental factors such as diet, gut microbiota, and infections have significant role in these epigenetic modifications. Studies show that bioactive nutrients and gut microbiota can alter either DNA methylation and histone signatures through a variety of mechanisms. Indeed, microbes within the human gut may play a significant role in the regulation of various elements of "gut-brain axis," via their influence on inflammatory cytokines and production of antimicrobial peptides that affect the epigenome through their involvement in generating short chain fatty acids, vitamin synthesis, and nutrient absorption. In addition, they may participate in-gut production of many common neurotransmitters. In this review we will consider the potential interactions of diet, gastrointestinal microbiome, inflammation, and epigenetic alterations in psychiatric disorders.
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Affiliation(s)
- Reza Alam
- Nutrition/Metabolism Laboratory; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
| | - Hamid M. Abdolmaleky
- Nutrition/Metabolism Laboratory; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
| | - Jin-Rong Zhou
- Nutrition/Metabolism Laboratory; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
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Cant R, Dalgleish AG, Allen RL. Naltrexone Inhibits IL-6 and TNFα Production in Human Immune Cell Subsets following Stimulation with Ligands for Intracellular Toll-Like Receptors. Front Immunol 2017; 8:809. [PMID: 28744288 PMCID: PMC5504148 DOI: 10.3389/fimmu.2017.00809] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 06/26/2017] [Indexed: 12/20/2022] Open
Abstract
The opioid antagonist naltrexone hydrochloride has been suggested to be a potential therapy at low dosage for multiple inflammatory conditions and cancers. Little is known about the immune-modulating effects of naltrexone, but an effect on the activity of toll-like receptor 4 (TLR4) has been reported. We analyzed the effects of naltrexone hydrochloride on IL-6 secretion by peripheral blood mononuclear cells (PBMC) in vitro following stimulation with ligands for TLR4 and for the intracellular receptors TLR7, TLR8, and TLR9. Naltrexone did not affect cell viability or induce apoptosis of PBMC. Intracellular staining demonstrated that naltrexone inhibited production of IL-6 and TNFα by monocyte and plasmacytoid dendritic cell subsets within the PBMC population following treatment with ligands for TLR7/8 and TLR9, respectively. No effect of cytokine production by PBMC following stimulation of TLR4 was observed. Additionally, naltrexone inhibited IL-6 production in isolated monocytes and B cells after TLR7/8 and TLR9 stimulation, respectively, but no effect on IL-6 production in isolated monocytes after TLR4 stimulation was observed. These findings indicate that naltrexone has the potential to modulate the secretion of inflammatory cytokines in response to intracellular TLR activity, supporting the hypothesis that it may have potential for use as an immunomodulator.
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Affiliation(s)
- Rachel Cant
- Institute for Infection and Immunity, St George's University of London, London, United Kingdom
| | - Angus G Dalgleish
- Institute for Infection and Immunity, St George's University of London, London, United Kingdom
| | - Rachel L Allen
- Institute for Infection and Immunity, St George's University of London, London, United Kingdom
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Loft ND, Skov L, Iversen L, Gniadecki R, Dam TN, Brandslund I, Hoffmann HJ, Andersen MR, Dessau RB, Bergmann AC, Andersen NM, Andersen PS, Bank S, Vogel U, Andersen V. Associations between functional polymorphisms and response to biological treatment in Danish patients with psoriasis. THE PHARMACOGENOMICS JOURNAL 2017; 18:494-500. [DOI: 10.1038/tpj.2017.31] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 05/17/2017] [Accepted: 05/26/2017] [Indexed: 12/11/2022]
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Bek S, Bojesen AB, Nielsen JV, Sode J, Bank S, Vogel U, Andersen V. Systematic review and meta-analysis: pharmacogenetics of anti-TNF treatment response in rheumatoid arthritis. THE PHARMACOGENOMICS JOURNAL 2017; 17:403-411. [PMID: 28607508 PMCID: PMC5637244 DOI: 10.1038/tpj.2017.26] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/08/2017] [Accepted: 03/02/2017] [Indexed: 02/06/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that affects ~1% of the Caucasian population. Over the last decades, the availability of biological drugs targeting the proinflammatory cytokine tumour necrosis factor α, anti-TNF drugs, has improved the treatment of patients with RA. However, one-third of the patients do not respond to the treatment. We wanted to evaluate the status of pharmacogenomics of anti-TNF treatment. We performed a PubMed literature search and all studies reporting original data on associations between genetic variants and anti-TNF treatment response in RA patients were included and results evaluated by meta-analysis. In total, 25 single nucleotide polymorphisms were found to be associated with anti-TNF treatment response in RA (19 from genome-wide association studies and 6 from the meta-analyses), and these map to genes involved in T cell function, NFκB and TNF signalling pathways (including CTCN5, TEC, PTPRC, FCGR2A, NFKBIB, FCGR2A, IRAK3). Explorative prediction analyses found that biomarkers for clinical treatment selection are not yet available.
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Affiliation(s)
- S Bek
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - A B Bojesen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark.,Research Unit for E-mental Health, Mental Health Services in the Region of Southern Odense, Odense, Denmark
| | - J V Nielsen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - J Sode
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - S Bank
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - U Vogel
- Research Unit for E-mental Health, Mental Health Services in the Region of Southern Odense, Odense, Denmark.,National Research Centre for the Working Environment, Copenhagen, Denmark
| | - V Andersen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark.,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark.,Odense Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
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Magro F, Gionchetti P, Eliakim R, Ardizzone S, Armuzzi A, Barreiro-de Acosta M, Burisch J, Gecse KB, Hart AL, Hindryckx P, Langner C, Limdi JK, Pellino G, Zagórowicz E, Raine T, Harbord M, Rieder F. Third European Evidence-based Consensus on Diagnosis and Management of Ulcerative Colitis. Part 1: Definitions, Diagnosis, Extra-intestinal Manifestations, Pregnancy, Cancer Surveillance, Surgery, and Ileo-anal Pouch Disorders. J Crohns Colitis 2017; 11:649-670. [PMID: 28158501 DOI: 10.1093/ecco-jcc/jjx008] [Citation(s) in RCA: 1156] [Impact Index Per Article: 165.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 02/01/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Fernando Magro
- Department of Pharmacology and Therapeutics, University of Porto; MedInUP, Centre for Drug Discovery and Innovative Medicines; Centro Hospitalar São João, Porto, Portugal
| | | | - Rami Eliakim
- Department of Gastroenterology and Hepatology, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Sandro Ardizzone
- Gastrointestinal Unit ASST Fatebenefratelli Sacco-University of Milan-Milan, Italy
| | - Alessandro Armuzzi
- IBD Unit Complesso Integrato Columbus, Gastroenterological and Endocrino-Metabolical Sciences Department, Fondazione Policlinico Universitario Gemelli Universita' Cattolica del Sacro Cuore, Rome, Italy
| | - Manuel Barreiro-de Acosta
- Department of Gastroenterology, IBD Unit, University Hospital Santiago De Compostela (CHUS), A Coruña, Spain
| | - Johan Burisch
- Department of Gastroenterology, North Zealand University Hospital, Frederikssund, Denmark
| | - Krisztina B Gecse
- First Department of Medicine, Semmelweis University, Budapest,Hungary
| | | | - Pieter Hindryckx
- Department of Gastroenterology, University Hospital of Ghent, Ghent, Belgium
| | - Cord Langner
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Jimmy K Limdi
- Department of Gastroenterology, Pennine Acute Hospitals NHS Trust; Institute of Inflammation and Repair, University of Manchester, Manchester, UK
| | - Gianluca Pellino
- Unit of General Surgery, Second University of Naples,Napoli, Italy
| | - Edyta Zagórowicz
- Maria Sklodowska-Curie Memorial Cancer Centre and Institute of Oncology, Department of Oncological Gastroenterology Warsaw; Medical Centre for Postgraduate Education, Department of Gastroenterology, Hepatology and Clinical Oncology, Warsaw, Poland
| | - Tim Raine
- Department of Medicine, University of Cambridge, Cambridge,UK
| | - Marcus Harbord
- Imperial College London; Chelsea and Westminster Hospital, London,UK
| | - Florian Rieder
- Department of Pathobiology /NC22, Lerner Research Institute; Department of Gastroenterology, Hepatology and Nutrition/A3, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
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Cao L, Zhang T, Zhu J, Li A, Zheng K, Zhang N, Su B, Xia W, Wu H, Li N, He Q. Polymorphism of TLR5 rs5744174 is associated with disease progression in Chinese patients with chronic HBV infection. APMIS 2017; 125:708-716. [PMID: 28543911 DOI: 10.1111/apm.12707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/12/2017] [Indexed: 12/22/2022]
Abstract
Toll-like receptors (TLRs) play a crucial role in innate and adaptive immunity, protecting the host from viral pathogens. Studies have implicated that TLR5 is associated with various diseases such as autoimmune and inflammation related diseases. However, little is known about the relationship between TLR5 and hepatitis B virus (HBV) infection. We studied the effect of TLR5 gene polymorphisms on susceptibility to and disease progression of chronic hepatitis B (CHB) infection in Chinese. Blood samples were taken from 636 patients with CHB, HBV-related liver cirrhosis (LC) or hepatocellular carcinoma (HCC) and 273 controls. Polymorphisms of TLR5 (1775A>G rs2072493 and 1846T>C rs5744174) were analyzed by PCR-based sequencing. No difference in genotypic and allelic frequencies of TLR5 rs2072493 and rs5744174 was observed between patients and controls. Significant difference was found in frequency of TLR5 rs5744174 TT genotype between men with CHB and LC (p = 0.035). Frequency of TT genotype of TLR5 rs5744174 in patients positive for HBeAg was increased from 53.2% in patients with CHB to 74.1% in those with HCC (p = 0.024). Our results indicate that in Chinese genetic variation of TLR5 may be not a determinant of susceptibility to HBV-related diseases but may play a role in development of HBV-related severe liver diseases.
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Affiliation(s)
- Lina Cao
- Department of Medical Microbiology and Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Tong Zhang
- Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Junping Zhu
- Department of Medical Microbiology and Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Aixin Li
- Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Kai Zheng
- Department of Medical Microbiology and Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Nan Zhang
- Department of Medical Microbiology and Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Bin Su
- Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Wei Xia
- Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Hao Wu
- Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Ning Li
- Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Qiushui He
- Department of Medical Microbiology and Research Centre of Microbiome, Capital Medical University, Beijing, China.,Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
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Epithelial-specific Toll-like Receptor (TLR)5 Activation Mediates Barrier Dysfunction in Experimental Ileitis. Inflamm Bowel Dis 2017; 23:392-403. [PMID: 28146004 DOI: 10.1097/mib.0000000000001035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND A large body of evidence supports a central role of TLR5 and its natural ligand, flagellin, in Crohn's disease (CD), with the precise mechanism(s) still unresolved. METHODS We investigated the role of flagellin/TLR5 in SAMP1/YitFc (SAMP) mice, a spontaneous model of Crohn's disease-like ileitis. RESULTS Ileal Tlr5 and serum antiflagellin IgG antibodies were increased in SAMP before the onset of inflammation and during established disease; these trends were abrogated in the absence of colonizing commensal bacteria. Irradiated SAMP receiving either wild-type (AKR) or SAMP bone marrow (BM) developed severe ileitis and displayed increased ileal Tlr5 compared with AKR recipients of either SAMP or AKR bone marrow, neither of which conferred ileitis, suggesting that elevated TLR5 in native SAMP is derived primarily from a nonhematopoietic (e.g., epithelial) source. Indeed, ileal epithelial TLR5 in preinflamed SAMP was increased compared with age-matched AKR and germ-free SAMP. TLR5-specific ex vivo activation of SAMP ileal tissues decreased epithelial barrier resistance, indicative of increased permeability, and was accompanied by altered expression of the tight junction proteins, claudin-3, occludin, and zonula occludens-1. CONCLUSIONS Our results provide evidence that aberrant, elevated TLR5 expression is present in the ileal epithelium of SAMP mice, is augmented in the presence of the gut microbiome, and that TLR5 activation in response to bacterial flagellin results in a deficiency to maintain appropriate epithelial barrier integrity. Together, these findings represent a potential mechanistic pathway leading to the exacerbation and perpetuation of chronic gut inflammation in experimental ileitis and possibly, in patients with Crohn's disease.
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Increasing Incidence of Crohn's Disease with Familial Clustering in the Kingdom of Bahrain: A 25-Year Population-based Study. Inflamm Bowel Dis 2017; 23:304-309. [PMID: 28092308 DOI: 10.1097/mib.0000000000001016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The incidence of Crohn's disease has been increasing in developed countries; whether this trend has extended to countries in Middle East, especially in the Arab world, remains unclear. Our aim was to study the epidemiology, incidence, time trends and clustering of Crohn's disease within the population of the Kingdom of Bahrain. METHODS A retrospective case-cohort study was conducted on patients diagnosed with Crohn's disease at Bahrain Specialist Hospital between 1990 and 2015. The diagnosis was based on clinical, radiological, endoscopic, and histological examinations. RESULTS Five hundred twenty-two cases were eligible for analysis; 14.5% were below the age of 19 with a male-to-female ratio of 1.1:1. The overall incidence was 4.8/100,000 person-years and significantly increased from 5.5/100,000 person-years during the 1990's to 8.0/100,000 person-years during the last study period [incidence rate ratio (IRR) 0.32, 95% CI = 0.26-0.42]. This trend was persistent for adults, children, men and women. There were 129 patients with at least one family member diagnosed with Crohn's disease consisting of 40 families. Three clusters were identified based on first or second degree relationship of the family member. The mean interval for diagnosis between family members was significantly shorter between siblings than second degree relatives; (2.0 ± 1.2 years) versus (5.0 ± 2.8 years), respectively; (P = 0.04). CONCLUSIONS The incidence rate of Crohn's disease in Bahrain is comparable to the U.S.A and has increased for men and women in all age groups. Crohn's disease clusters were common among families and included up to 3 generations consistent with presence of a common source or common genetic factors.
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Epistatic effect of TLR-1, -6 and -10 polymorphisms on organic dust-mediated cytokine response. Genes Immun 2017; 18:67-74. [PMID: 28123183 PMCID: PMC5407948 DOI: 10.1038/gene.2016.51] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 11/29/2016] [Accepted: 12/06/2016] [Indexed: 12/16/2022]
Abstract
Exposure to organic dust from agricultural environments is associated
with inflammatory respiratory conditions. The putative causal agents in organic
dust include viral, microbial and fungal components, which are recognized by the
family of toll-like receptors and drive host innate and adaptive responses. Our
aim in this study was to determine whether responsiveness to organic dust among
agricultural workers was dependent on polymorphisms in the
TLR10-TLR1-TLR6 gene cluster. We stimulated whole blood
from 509 agricultural workers with organic dust, triacyl lipopeptide
N-palmitoyl-S-dipalmitoylglyceryl Cys-Ser-(Lys)4 (Pam3CSK4) and the
diacyl- lipopeptide peptidoglycan. Several of the tagging polymorphisms and
haplotypes conferred hyper-responsiveness to organic dust with an increase in
IL-6 (p < 0.005), but not TNF-α, secretion. We conclude that
genetic variation in the TLR10-TLR1-TLR6 gene cluster mediates
responsiveness to organic dust, but indicates different signaling pathways for
IL-6 and TNF-α. These studies provide new insight into the role of the
TLR10-TLR1-TLR6 gene cluster and the innate immune response
to organic dust.
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Crohn's Disease: Evolution, Epigenetics, and the Emerging Role of Microbiome-Targeted Therapies. Curr Gastroenterol Rep 2016; 18:13. [PMID: 26908281 DOI: 10.1007/s11894-016-0487-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Crohn's disease (CD) is a chronic, systemic, immune-mediated inflammation of the gastrointestinal tract. Originally described in 1932 as non-caseating granulomatous inflammation limited to the terminal ileum, it is now recognized as an expanding group of heterogeneous diseases defined by intestinal location, extent, behavior, and systemic extraintestinal manifestations. Joint diseases, including inflammatory spondyloarthritis and ankylosing spondylitis, are the most common extraintestinal manifestations of CD and share more genetic susceptibility loci than any other inflammatory bowel disease (IBD) trait. The high frequency and overlap with genes associated with infectious diseases, specifically Mendelian susceptibility to mycobacterial diseases (MSMD), suggest that CD may represent an evolutionary adaptation to environmental microbes. Elucidating the diversity of the enteric microbiota and the protean mucosal immune responses in individuals may personalize microbiome-targeted therapies and molecular classifications of CD. This review will focus on CD's natural history and therapies in the context of epigenetics, immunogenetics, and the microbiome.
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Padua D, Mahurkar-Joshi S, Law IKM, Polytarchou C, Vu JP, Pisegna JR, Shih D, Iliopoulos D, Pothoulakis C. A long noncoding RNA signature for ulcerative colitis identifies IFNG-AS1 as an enhancer of inflammation. Am J Physiol Gastrointest Liver Physiol 2016; 311:G446-57. [PMID: 27492330 PMCID: PMC5076004 DOI: 10.1152/ajpgi.00212.2016] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 07/12/2016] [Indexed: 01/31/2023]
Abstract
High-throughput technologies revealed new categories of genes, including the long noncoding RNAs (lncRNAs), involved in the pathogenesis of human disease; however, the role of lncRNAs in the ulcerative colitis (UC) has not been evaluated. Gene expression profiling was used to develop lncRNA signatures in UC samples. Jurkat T cells were activated by PMA/ionomycin subsequently interferon-γ (IFNG) and tumor necrosis factor (TNF)-α protein levels were assessed by ELISA. Anti-sense molecules were designed to block IFNG-AS1 expression. A unique set of lncRNAs was differentially expressed between UC and control samples. Of these, IFNG-AS1 was among the highest statistically significant lncRNAs (fold change: 5.27, P value: 7.07E-06). Bioinformatic analysis showed that IFNG-AS1 was associated with the IBD susceptibility loci SNP rs7134599 and its genomic location is adjacent to the inflammatory cytokine IFNG. In mouse models of colitis, active colitis samples had increased colonic expression of this lncRNA. Utilizing the Jurkat T cell model, we found IFNG-AS1 to positively regulate IFNG expression. Novel lncRNA signatures differentiate UC patients with active disease, patients in remission, and control subjects. A subset of these lncRNAs was found to be associated with the clinically validated IBD susceptibility loci. IFNG-AS1 was one of these differentially expressed lncRNAs in UC patients and found to regulate the key inflammatory cytokine, IFNG, in CD4 T cells. Taking these findings together, our study revealed novel lncRNA signatures deregulated in UC and identified IFNG-AS1 as a novel regulator of IFNG inflammatory responses, suggesting the potential importance of noncoding RNA mechanisms on regulation of inflammatory bowel disease-related inflammatory responses.
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Affiliation(s)
- David Padua
- 1Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California;
| | - Swapna Mahurkar-Joshi
- 1Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California;
| | - Ivy Ka Man Law
- 1Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California;
| | - Christos Polytarchou
- 2Center for Systems Biomedicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California; ,3School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom;
| | - John P. Vu
- 4Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System and Department of Medicine David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California; and
| | - Joseph R. Pisegna
- 4Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System and Department of Medicine David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California; and
| | - David Shih
- 5Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Dimitrios Iliopoulos
- 1Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California; ,2Center for Systems Biomedicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California;
| | - Charalabos Pothoulakis
- Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California;
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Weng ZJ, Wu LY, Lü TT, Zhang F, Xie HR, Sun TA, Liu HR, Wu HG. Regulatory effects of herbal cake-partitioned moxibustion on the expressions of IL-17, IL-23 and their mRNAs in the colon of rats with Crohn’s disease. JOURNAL OF ACUPUNCTURE AND TUINA SCIENCE 2016. [DOI: 10.1007/s11726-016-0917-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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