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Wu W, Zhao Y, Hu T, Long Y, Zeng Y, Li M, Peng S, Hu J, Shen Y. Endoplasmic reticulum stress is upregulated in inflammatory bowel disease and contributed TLR2 pathway-mediated inflammatory response. Immunopharmacol Immunotoxicol 2024; 46:192-198. [PMID: 38147028 DOI: 10.1080/08923973.2023.2298897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 12/17/2023] [Indexed: 12/27/2023]
Abstract
OBJECTIVE Endoplasmic reticulum stress (ERS) and Toll-like receptor 2 (TLR2) signaling play an important role in inflammatory bowel disease (IBD); however, the link between TLR2 and ERS in IBD is unclear. This study investigated whether Thapsigargin (TG) -induced ER protein expression levels contributed to TLR2-mediated inflammatory response. METHODS The THP-1 cells were treated with TLR2 agonist (Pam3CSK4), ERS inducer Thapsigargin (TG) or inhibitor (TUDCA). The mRNA expressions of TLR1-TLR10 were detected by qPCR. The production and secretion of inflammatory factors were detected by PCR and ELISA. Immunohistochemistry was used to detect the expressions of GRP78 and TLR2 in the intestinal mucosa of patients with Crohn's disease (CD). The IBD mouse model was established by TNBS in the modeling group. ERS inhibitor (TUDCA) was used in the treatment group. RESULTS The expression of TLRs was detected via polymerase chain reaction (PCR) in THP-1 cells treated by ERS agonist Thapsigargin (TG). According to the findings, TG could promote TLR2 and TLR5 expression. Subsequently, in TLR2 agonist Pam3CSK4 induced THP-1 cells, TG could lead to increased expression of the inflammatory factors such as TNF-α, IL-1β and IL-8, and ERS inhibitor (TUDCA) could block this effect. However, Pam3CSK4 did not significantly impact the GRP78 and CHOP expression. Based upon the immunohistochemical results, TLR2 and GRP78 expression were significantly increased in the intestinal mucosa of patients with Crohn's disease (CD). For in vivo experiments, TUDCA displayed the ability to inhibit intestinal mucosal inflammation and reduce GRP78 and TLR2 proteins. CONCLUSIONS ERS and TLR2 is upregulated in inflammatory bowel disease, ERS may promote TLR2 pathway-mediated inflammatory response. Moreover, ERS and TLR2 signaling could be novel therapeutic targets for IBD.
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Affiliation(s)
- Weijie Wu
- Department of Digestive Diseases, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Yan Zhao
- Department of Pathology, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Tian Hu
- Department of Digestive Diseases, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Yan Long
- Department of Digestive Diseases, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Ya Zeng
- Department of Digestive Diseases, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Mengling Li
- Department of Digestive Diseases, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Siyuan Peng
- Department of Digestive Diseases, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Jinyue Hu
- Central Laboratory, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
| | - Yueming Shen
- Department of Digestive Diseases, Changsha Central Hospital Affiliated to University of South China, Changsha, Hunan, China
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Xia F, Bo W, Ding J, Yu Y, Wang J, Wang J. MiR-222-3p Aggravates the Inflammatory Response by Targeting SOCS1 to Activate STAT3 Signaling in Ulcerative Colitis. THE TURKISH JOURNAL OF GASTROENTEROLOGY : THE OFFICIAL JOURNAL OF TURKISH SOCIETY OF GASTROENTEROLOGY 2022; 33:934-944. [PMID: 35946880 PMCID: PMC9797778 DOI: 10.5152/tjg.2022.21769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Ulcerative colitis is characterized by relapsing inflammation in the gastrointestinal tract with limited treatment options. The aim of the present study was to assess the anti-inflammatory effect of Suppressor of cytokine signaling (SOCS1) on lipopolysac- charide-stimulated RAW264.7 cells and to investigate its potential mechanisms. METHODS The in vitro ulcerative colitis model was established by using lipopolysaccharide-stimulated RAW264.7 cells. Western blot- ting was used to detect the protein expression levels of SOCS1, JAK2, STAT3, and VDR. Reverse transcription-quantitative polymerase chain reaction was used to measure the mRNA expression of SOCS1, miR-222-3p, and VDR. An enzyme-linked immunosorbent assay was performed to measure the levels of inflammatory cytokines. A luciferase assay assessed the binding of SOCS1 to miR-222-3p. A total of 15 patients with ulcerative colitis and 18 healthy controls were recruited. The expression levels of SOCS1 and miR-222-3p in the colonic mucosa tissues of patients with ulcerative colitis and healthy controls were determined by reverse transcription-quantitative polymerase chain reaction. RESULTS SOCS1 upregulation inhibited the lipopolysaccharide-induced inflammation in RAW264.7 cells. SOCS1 was confirmed to be tar- geted by miR-222-3p. Silencing SOCS1 significantly abolished the inhibitory effects of miR-222-3p downregulation on inflammation. MiR-222-3p activated STAT3 signaling and reduced VDR expression by targeting SOCS1 in lipopolysaccharide-treated RAW264.7 cells. Additionally, miR-222-3p expression was upregulated in ulcerative colitis patients (P = 5.16E-10), while SOCS1 (P = 2.75E-10) and VDR (P = 52.5E-9) expression was downregulated in ulcerative colitis patients. Endoscopic scores (UCEIS) revealed significant positive cor- relation with miR-222-3p and negative correlation with SOCS1 and VDR. CONCLUSION MiR-222-3p targets SOCS1 to aggravate the inflammatory response by suppressing VDR and activating STAT3 signaling in ulcerative colitis.
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Affiliation(s)
| | | | | | - Yanqiu Yu
- Corresponding authors: Yanqiu Yu or Jianning Wang, e-mail: ;
| | - Jianning Wang
- Corresponding authors: Yanqiu Yu or Jianning Wang, e-mail: ;
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Clerbaux LA, Albertini MC, Amigó N, Beronius A, Bezemer GFG, Coecke S, Daskalopoulos EP, del Giudice G, Greco D, Grenga L, Mantovani A, Muñoz A, Omeragic E, Parissis N, Petrillo M, Saarimäki LA, Soares H, Sullivan K, Landesmann B. Factors Modulating COVID-19: A Mechanistic Understanding Based on the Adverse Outcome Pathway Framework. J Clin Med 2022; 11:4464. [PMID: 35956081 PMCID: PMC9369763 DOI: 10.3390/jcm11154464] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/10/2022] Open
Abstract
Addressing factors modulating COVID-19 is crucial since abundant clinical evidence shows that outcomes are markedly heterogeneous between patients. This requires identifying the factors and understanding how they mechanistically influence COVID-19. Here, we describe how eleven selected factors (age, sex, genetic factors, lipid disorders, heart failure, gut dysbiosis, diet, vitamin D deficiency, air pollution and exposure to chemicals) influence COVID-19 by applying the Adverse Outcome Pathway (AOP), which is well-established in regulatory toxicology. This framework aims to model the sequence of events leading to an adverse health outcome. Several linear AOPs depicting pathways from the binding of the virus to ACE2 up to clinical outcomes observed in COVID-19 have been developed and integrated into a network offering a unique overview of the mechanisms underlying the disease. As SARS-CoV-2 infectibility and ACE2 activity are the major starting points and inflammatory response is central in the development of COVID-19, we evaluated how those eleven intrinsic and extrinsic factors modulate those processes impacting clinical outcomes. Applying this AOP-aligned approach enables the identification of current knowledge gaps orientating for further research and allows to propose biomarkers to identify of high-risk patients. This approach also facilitates expertise synergy from different disciplines to address public health issues.
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Affiliation(s)
- Laure-Alix Clerbaux
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.C.); (E.P.D.); (N.P.); (M.P.); (B.L.)
| | | | - Núria Amigó
- Biosfer Teslab SL., 43204 Reus, Spain;
- Department of Basic Medical Sciences, Universitat Rovira i Virgili (URV), 23204 Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Anna Beronius
- Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden;
| | - Gillina F. G. Bezemer
- Impact Station, 1223 JR Hilversum, The Netherlands;
- Department of Pharmaceutical Sciences, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Sandra Coecke
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.C.); (E.P.D.); (N.P.); (M.P.); (B.L.)
| | - Evangelos P. Daskalopoulos
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.C.); (E.P.D.); (N.P.); (M.P.); (B.L.)
| | - Giusy del Giudice
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, 33100 Tampere, Finland; (G.d.G.); (D.G.); (L.A.S.)
| | - Dario Greco
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, 33100 Tampere, Finland; (G.d.G.); (D.G.); (L.A.S.)
| | - Lucia Grenga
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SPI, F-30200 Bagnols-sur-Ceze, France;
| | - Alberto Mantovani
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, 00161 Rome, Italy;
| | - Amalia Muñoz
- European Commission, Joint Research Centre (JRC), 2440 Geel, Belgium;
| | - Elma Omeragic
- Faculty of Pharmacy, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina;
| | - Nikolaos Parissis
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.C.); (E.P.D.); (N.P.); (M.P.); (B.L.)
| | - Mauro Petrillo
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.C.); (E.P.D.); (N.P.); (M.P.); (B.L.)
| | - Laura A. Saarimäki
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, 33100 Tampere, Finland; (G.d.G.); (D.G.); (L.A.S.)
| | - Helena Soares
- Laboratory of Immunobiology and Pathogenesis, Chronic Diseases Research Centre, Faculdade de Ciências Médicas Medical School, University of Lisbon, 1649-004 Lisbon, Portugal;
| | - Kristie Sullivan
- Physicians Committee for Responsible Medicine, Washington, DC 20016, USA;
| | - Brigitte Landesmann
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy; (S.C.); (E.P.D.); (N.P.); (M.P.); (B.L.)
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Detection Of TLR-2 germ line variants as a risk for obesity in local Pakistani population. Arch Med Res 2022; 53:359-367. [DOI: 10.1016/j.arcmed.2022.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 03/08/2022] [Accepted: 04/27/2022] [Indexed: 12/26/2022]
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Li Y, Chen Y, Jiang L, Zhang J, Tong X, Chen D, Le W. Intestinal Inflammation and Parkinson's Disease. Aging Dis 2021; 12:2052-2068. [PMID: 34881085 PMCID: PMC8612622 DOI: 10.14336/ad.2021.0418] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/18/2021] [Indexed: 12/15/2022] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease which significantly influences the life quality of patients. The protein α-synuclein plays an important driving role in PD occurrence and development. Braak's hypothesis suggests that α-synuclein is produced in intestine, and then spreads into the central nervous system through the vagus nerve. The abnormal expression of α-synuclein has been found in inflammatory bowel disease (IBD). Intestinal inflammation and intestinal dysbiosis have been involved in the occurrence and development of PD. The present review aimed to summarize recent advancements in studies focusing on intestinal inflammation and PD, especially the mechanisms through which link intestinal inflammation and PD. The intestinal dysfunctions such as constipation have been introduced as non-motor manifestations of PD. The possible linkages between IBD and PD, including genetic overlaps, inflammatory responses, intestinal permeability, and intestinal dysbiosis, are mainly discussed. Although it is not confirmed whether PD starts from intestine, intestinal dysfunction may affect intestinal microenvironment to influence central nervous system, including the α-synuclein pathologies and systematic inflammation. It is expected to develop some new strategies in the diagnosis and treatment of PD from the aspect of intestine. It may also become an exciting direction to find better ways to regulate the composition of gut microorganism to treat PD.
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Affiliation(s)
- Yu Li
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, China.
| | - Yuanyuan Chen
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, China.
| | - Lili Jiang
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, China.
| | - Jingyu Zhang
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, China.
| | - Xuhui Tong
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, China.
| | - Dapeng Chen
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, China.
| | - Weidong Le
- Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian, Liaoning, China
- Institute of Neurology, Sichuan Academy of Medical Science-Sichuan Provincial Hospital, Chengdu, Sichuan, China
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Li XX, Chen SG, Yue GGL, Kwok HF, Lee JKM, Zheng T, Shaw PC, Simmonds MSJ, Lau CBS. Natural flavone tricin exerted anti-inflammatory activity in macrophage via NF-κB pathway and ameliorated acute colitis in mice. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 90:153625. [PMID: 34256329 DOI: 10.1016/j.phymed.2021.153625] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/30/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Ulcerative colitis is a subtype of inflammatory bowel disease, characterized by relapsing inflammation in the gastrointestinal tract with limited treatment options. Previous studies suggested that the natural compound tricin, a flavone isolated from rice bran, could suppress chemically-induced colitis in mice, while our recent study also demonstrated the anti-metastatic effect of tricin in colon tumor-bearing mice. HYPOTHESIS/PURPOSE Here we further investigated the underlying mechanism of the inhibitory effects of tricin on lipopolysaccharides-activated macrophage RAW264.7 cells and explored the efficacy of tricin in acute colitis mouse model induced by 4.5% dextran sulfate sodium (DSS) for 7 days. METHODS Tricin (75, 100, and 150 mg/kg) or the positive control drug sulfasalazine (200 mg/kg) were orally administered to mice for 7 days. Stool consistency scores, stool blood scores, and body weight were recorded daily. Disease activity index (DAI) was examined on day 7, and colon tissues were collected for biochemical analyses. The fecal microbiome of colitis mice after tricin treatment was characterized for the first time in this study using 16S rDNA amplicon sequencing. RESULTS Results showed that tricin (50 µM) remarkably reduced nitric oxide production in lipopolysaccharides-activated RAW264.7 cells and the anti-inflammatory activity of tricin was shown to act through the NF-κB pathway. Besides, tricin treatment at 150 mg/kg significantly reversed colon length reduction, reduced myeloperoxidase activities and DAI scores, as well as restored the elevated myeloid-derived suppressive cells population in acute colitis mice. The influence from DSS on gut microbiota, such as the increased population of Proteobacteria phylum and Ruminococcaceae family, was shown to be relieved after tricin treatment. CONCLUSION Our present study firstly demonstrated that tricin ameliorated acute colitis by improving colonic inflammation and modulating gut microbiota profile, which supports the potential therapeutic use of tricin for colitis treatment.
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Affiliation(s)
- Xiao-Xiao Li
- Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Sin-Guang Chen
- Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Grace Gar-Lee Yue
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants (CUHK), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Hin-Fai Kwok
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants (CUHK), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Julia Kin-Ming Lee
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants (CUHK), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Tao Zheng
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants (CUHK), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Pang-Chui Shaw
- Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants (CUHK), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | | | - Clara Bik-San Lau
- Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants (CUHK), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
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Zeng J, Zhang D, Wan X, Bai Y, Yuan C, Wang T, Yuan D, Zhang C, Liu C. Chlorogenic Acid Suppresses miR-155 and Ameliorates Ulcerative Colitis through the NF-κB/NLRP3 Inflammasome Pathway. Mol Nutr Food Res 2020; 64:e2000452. [PMID: 33078870 DOI: 10.1002/mnfr.202000452] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 10/08/2020] [Indexed: 12/12/2022]
Abstract
SCOPE The over-activation of the nucleotide-binding domain like receptor protein 3 (NLRP3) inflammasome plays an important role in the pathogenesis of ulcerative colitis (UC). Chlorogenic acid (CGA) exposure is identified as an effective strategy for repressing inflammatory responses. METHODS AND RESULTS In this study, the NLRP3 inflammasome model with LPS/ATP-induced RAW264.7 cells in vitro and dextran-sulfate-sodium (DSS)-induced colitis in mice are used to evaluate the effect of CGA on NLRP3 inflammasome-related signaling. The results suggest that CGA suppressed the expression of NLRP3 inflammasome-related genes (apoptosis-associated speck-like protein containing CARD (ASC), cysteine-requiring aspartate protease (Caspase)-1 p45, Caspase-1 p20, pro-/cleaved-interleukin (IL)-1β, pro-/cleaved-IL-18), p-nuclear factor kappa B (NF-κB) protein, and miR-155 in mice with colitis. Gain- and loss-of-function studies of miR-155 are performed to elucidate its role in inflammation. Moreover, activation of the NF-κB/NLRP3 inflammasome pathway and miR-155 expression is investigated. CGA exposure in lipopolysaccharide (LPS)/adenosine triphosphate (ATP)-stimulated RAW264.7 cells leads to a decrease in p-NK-κB and NLRP3 inflammasome-related proteins, which is dependent on the downregulation of miR-155 expression. CONCLUSIONS These findings indicate that CGA prevented colitis by downregulating miR-155 expression and inactivating the NF-κB/NLRP3 inflammasome pathway in macrophages. The current study has promising therapeutic implications in the treatment of UC.
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Affiliation(s)
- Junhao Zeng
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Dengqing Zhang
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Xiaoyu Wan
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Yuanling Bai
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Chengfu Yuan
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Ting Wang
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Ding Yuan
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Changcheng Zhang
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Chaoqi Liu
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
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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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Konidari A, Dickens D, Pirmohamed M. Inflammatory Bowel Disease: A Personalized Approach. Front Pediatr 2020; 8:620545. [PMID: 33643966 PMCID: PMC7904676 DOI: 10.3389/fped.2020.620545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/30/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- Anastasia Konidari
- B Pediatric Clinic, Paidon Aglaia Kyriakou Children's Hospital, Athens, Greece.,The Wolfson Centre for Personalized Medicine, Institute of Systems, Molecular and Integrative Biology (ISMIB), University of Liverpool, Liverpool, United Kingdom
| | - David Dickens
- The Wolfson Centre for Personalized Medicine, Institute of Systems, Molecular and Integrative Biology (ISMIB), University of Liverpool, Liverpool, United Kingdom
| | - Munir Pirmohamed
- The Wolfson Centre for Personalized Medicine, Institute of Systems, Molecular and Integrative Biology (ISMIB), University of Liverpool, Liverpool, United Kingdom
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Savino F, Galliano I, Garro M, Savino A, Daprà V, Montanari P, Bergallo M. Regulatory T cells and Toll-like receptor 2 and 4 mRNA expression in infants with colic treated with Lactobacillus reuteri DSM17938. Benef Microbes 2018; 9:917-925. [DOI: 10.3920/bm2017.0194] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Regulatory T cells induce immune homeostasis and the expression of Toll like receptors (TLRs); subsequent inflammatory cytokine release may be involved. Recent studies have shown a microbial imbalance in the gut of colicky infants (with a prevalence of gram-negative bacteria, such as Escherichia coli), and accumulating evidence has shown the efficacy of a probiotic (Lactobacillus reuteri) in breastfed subjects, but the underlying mechanism remains undefined. The study enrolled 59 infants younger than 60 days, of whom 34 subjects had colic and 25 were healthy controls. With a double-blind, placebo-controlled randomised study performed in our unit from October 2016 to July 2017, infants with colic were randomly assigned to receive oral daily L. reuteri DSM17938 (1×108 cfu) or placebo for 28 days. Peripheral blood was collected to assess the expression of FoxP3, TLR2 and TLR4 mRNA using real-time TaqMan RT-PCR at baseline and after the study period. Our findings showed increased mRNA expression of the transcription factor forkhead box P3 (FoxP3) in infants treated with L. reuteri DSM 17938 for 28 days (P<0.009) and increased TLR2 and TLR4 mRNA expression in both treated and placebo subjects. After L. reuteri administration for 28 days in infants with colic, we observed a significant decrease in daily crying time (302.3±19.86 min/day on day 0 vs 76.75±22.15 min/day on day 28, P=0.001). This study provides evidence that the observed increase in FoxP3 expression and reduction in crying time might be responses to probiotic treatment, while the increase in TLR2 and TLR4 mRNA expression might be related to age. Exploiting these new findings may lead to an unprecedented level of therapeutic control over immune tolerance using probiotics.
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Affiliation(s)
- F. Savino
- Department of Paediatrics, Azienda Ospedaliera Universitaria Città della Salute e della Scienza di Torino, Piazza Polonia, 94, 10126 Turin, Italy
| | - I. Galliano
- Dipartimento delle Scienze di Sanità Pubblica e Pediatriche, Università degli Studi di Torino, Scuola di Medicina, Piazza Polonia, 94, 10126 Turin, Italy
| | - M. Garro
- Department of Paediatrics, Azienda Ospedaliera Universitaria Città della Salute e della Scienza di Torino, Piazza Polonia, 94, 10126 Turin, Italy
| | - A. Savino
- Department of Paediatrics, Azienda Ospedaliera Universitaria Città della Salute e della Scienza di Torino, Piazza Polonia, 94, 10126 Turin, Italy
| | - V. Daprà
- Dipartimento delle Scienze di Sanità Pubblica e Pediatriche, Università degli Studi di Torino, Scuola di Medicina, Piazza Polonia, 94, 10126 Turin, Italy
| | - P. Montanari
- Dipartimento delle Scienze di Sanità Pubblica e Pediatriche, Università degli Studi di Torino, Scuola di Medicina, Piazza Polonia, 94, 10126 Turin, Italy
| | - M. Bergallo
- Dipartimento delle Scienze di Sanità Pubblica e Pediatriche, Università degli Studi di Torino, Scuola di Medicina, Piazza Polonia, 94, 10126 Turin, Italy
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