1
|
Raouf Z, Steinway SN, Scheese D, Lopez CM, Duess JW, Tsuboi K, Sampah M, Klerk D, El Baassiri M, Moore H, Tragesser C, Prindle T, Wang S, Wang M, Jang HS, Fulton WB, Sodhi CP, Hackam DJ. Colitis-Induced Small Intestinal Hypomotility Is Dependent on Enteroendocrine Cell Loss in Mice. Cell Mol Gastroenterol Hepatol 2024; 18:53-70. [PMID: 38438014 DOI: 10.1016/j.jcmgh.2024.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND & AIMS The abdominal discomfort experienced by patients with colitis may be attributable in part to the presence of small intestinal dysmotility, yet mechanisms linking colonic inflammation with small-bowel motility remain largely unexplored. We hypothesize that colitis results in small intestinal hypomotility owing to a loss of enteroendocrine cells (EECs) within the small intestine that can be rescued using serotonergic-modulating agents. METHODS Male C57BL/6J mice, as well as mice that overexpress (EECOVER) or lack (EECDEL) NeuroD1+ enteroendocrine cells, were exposed to dextran sulfate sodium (DSS) colitis (2.5% or 5% for 7 days) and small intestinal motility was assessed by 70-kilodalton fluorescein isothiocyanate-dextran fluorescence transit. EEC number and differentiation were evaluated by immunohistochemistry, terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling staining, and quantitative reverse-transcriptase polymerase chain reaction. Mice were treated with the 5-hydroxytryptamine receptor 4 agonist prucalopride (5 mg/kg orally, daily) to restore serotonin signaling. RESULTS DSS-induced colitis was associated with a significant small-bowel hypomotility that developed in the absence of significant inflammation in the small intestine and was associated with a significant reduction in EEC density. EEC loss occurred in conjunction with alterations in the expression of key serotonin synthesis and transporter genes, including Tph1, Ddc, and Slc6a4. Importantly, mice overexpressing EECs revealed improved small intestinal motility, whereas mice lacking EECs had worse intestinal motility when exposed to DSS. Finally, treatment of DSS-exposed mice with the 5-hydroxytryptamine receptor 4 agonist prucalopride restored small intestinal motility and attenuated colitis. CONCLUSIONS Experimental DSS colitis induces significant small-bowel dysmotility in mice owing to enteroendocrine loss that can be reversed by genetic modulation of EEC or administering serotonin analogs, suggesting novel therapeutic approaches for patients with symptomatic colitis.
Collapse
Affiliation(s)
- Zachariah Raouf
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Steve N Steinway
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Daniel Scheese
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Carla M Lopez
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Johannes W Duess
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Koichi Tsuboi
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Maame Sampah
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Daphne Klerk
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Mahmoud El Baassiri
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Hannah Moore
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Cody Tragesser
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Thomas Prindle
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sanxia Wang
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Menghan Wang
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Hee-Seong Jang
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - William B Fulton
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Chhinder P Sodhi
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland.
| | - David J Hackam
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland.
| |
Collapse
|
2
|
Rajesh KM, Kinra M, Ranadive N, Pawaskar GM, Mudgal J, Raval R. Effect of chronic low-dose treatment with chitooligosaccharides on microbial dysbiosis and inflammation associated chronic ulcerative colitis in Balb/c mice. Naunyn Schmiedebergs Arch Pharmacol 2024; 397:1611-1622. [PMID: 37695333 PMCID: PMC10858833 DOI: 10.1007/s00210-023-02710-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
The study aimed to investigate the potential of low dose chitooligosaccharide (COS) in ameliorating dextran sodium sulfate (DSS) induced chronic colitis by regulating microbial dysbiosis and pro-inflammatory responses. Chronic colitis was induced in BALB/c mice by DSS (4% w/v, 3 cycles of 5 days) administration. The mice were divided into four groups: vehicle, DSS, DSS + mesalamine and DSS+COS. COS and mesalamine were administered orally, daily once, from day 1 to day 30 at a dose of 20 mg/kg and 50 mg/kg respectively. The disease activity index (DAI), colon length, histopathological score, microbial composition, and pro-inflammatory cytokine expression were evaluated. COS (20 mg/kg, COSLow) administration reduced the disease activity index, and colon shortening, caused by DSS significantly. Furthermore, COSLow restored the altered microbiome in the gut and inhibited the elevated pro-inflammatory cytokines (IL-1 and IL-6) in the colon against DSS-induced chronic colitis in mice. Moreover, COSLow treatment improved the probiotic microflora thereby restoring the gut homeostasis. In conclusion, this is the first study where microbial dysbiosis and pro-inflammatory responses were modulated by chronic COSLow treatment against DSS-induced chronic colitis in Balb/c mice. Therefore, COS supplementation at a relatively low dose could be efficacious for chronic inflammatory bowel disease.
Collapse
Affiliation(s)
- K M Rajesh
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Manas Kinra
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Niraja Ranadive
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Goutam Mohan Pawaskar
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Jayesh Mudgal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
| | - Ritu Raval
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
| |
Collapse
|
3
|
Krause JL, Engelmann B, Schaepe SS, Rolle-Kampczyk U, Jehmlich N, Chang HD, Slanina U, Hoffman M, Lehmann J, Zenclussen AC, Herberth G, von Bergen M, Haange SB. DSS treatment does not affect murine colonic microbiota in absence of the host. Gut Microbes 2024; 16:2297831. [PMID: 38165179 PMCID: PMC10763643 DOI: 10.1080/19490976.2023.2297831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024] Open
Abstract
The prevalence of inflammatory bowel disease (IBD) is rising globally; however, its etiology is still not fully understood. Patient genetics, immune system, and intestinal microbiota are considered critical factors contributing to IBD. Preclinical animal models are crucial to better understand the importance of individual contributing factors. Among these, the dextran sodium sulfate (DSS) colitis model is the most widely used. DSS treatment induces gut inflammation and dysbiosis. However, its exact mode of action remains unclear. To determine whether DSS treatment induces pathogenic changes in the microbiota, we investigated the microbiota-modulating effects of DSS on murine microbiota in vitro. For this purpose, we cultured murine microbiota from the colon in six replicate continuous bioreactors. Three bioreactors were supplemented with 1% DSS and compared with the remaining PBS-treated control bioreactors by means of microbiota taxonomy and functionality. Using metaproteomics, we did not identify significant changes in microbial taxonomy, either at the phylum or genus levels. No differences in the metabolic pathways were observed. Furthermore, the global metabolome and targeted short-chain fatty acid (SCFA) quantification did not reveal any DSS-related changes. DSS had negligible effects on microbial functionality and taxonomy in vitro in the absence of the host environment. Our results underline that the DSS colitis mouse model is a suitable model to study host-microbiota interactions, which may help to understand how intestinal inflammation modulates the microbiota at the taxonomic and functional levels.
Collapse
Affiliation(s)
- Jannike Lea Krause
- German Rheumatism Research Center Berlin, a Leibniz Institute – DRFZ, Schwiete laboratory for microbiota and inflammation, Berlin, Germany
- Helmholtz-Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, Germany
| | - Beatrice Engelmann
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Stephanie Serena Schaepe
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Ulrike Rolle-Kampczyk
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Nico Jehmlich
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Hyun-Dong Chang
- German Rheumatism Research Center Berlin, a Leibniz Institute – DRFZ, Schwiete laboratory for microbiota and inflammation, Berlin, Germany
- Chair of Cytometry, Institute of Biotechnology, Technische Universität, Berlin, Germany
| | - Ulla Slanina
- Fraunhofer Cluster of Excellence Immune-mediated Diseases – CIMD, Leipzig, Germany
| | - Maximillian Hoffman
- Fraunhofer Cluster of Excellence Immune-mediated Diseases – CIMD, Leipzig, Germany
| | - Jörg Lehmann
- Fraunhofer Cluster of Excellence Immune-mediated Diseases – CIMD, Leipzig, Germany
- Department of Preclinical Development and Validation, Fraunhofer-Institute for Cell Therapy and Immunology – IZI, Leipzig, Germany
| | - Ana Claudia Zenclussen
- Helmholtz-Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, Germany
| | - Gunda Herberth
- Helmholtz-Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, Germany
| | - Martin von Bergen
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research - UFZ, Leipzig, Germany
- Institute of Biochemistry, Faculty of Biosciences, Pharmacy and Psychology, University of Leipzig, Leipzig, Germany
| | - Sven-Bastiaan Haange
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research - UFZ, Leipzig, Germany
| |
Collapse
|
4
|
Wang Y, Li Q, Zhang J, Liu P, Zheng H, Chen L, Wang Z, Tan C, Zhang M, Zhang H, Miao W, Wang Y, Xuan X, Yi G, Wang P. Ring1a protects against colitis through regulating mucosal immune system and colonic microbial ecology. Gut Microbes 2023; 15:2251646. [PMID: 37655448 PMCID: PMC10478745 DOI: 10.1080/19490976.2023.2251646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 07/19/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023] Open
Abstract
Inflammatory bowel disease (IBD) represents a prominent chronic immune-mediated inflammatory disorder, yet its etiology remains poorly comprehended, encompassing intricate interactions between genetics, immunity, and the gut microbiome. This study uncovers a novel colitis-associated risk gene, namely Ring1a, which regulates the mucosal immune response and intestinal microbiota. Ring1a deficiency exacerbates colitis by impairing the immune system. Concomitantly, Ring1a deficiency led to a Prevotella genus-dominated pathogenic microenvironment, which can be horizontally transmitted to co-housed wild type (WT) mice, consequently intensifying dextran sodium sulfate (DSS)-induced colitis. Furthermore, we identified a potential mechanism linking the altered microbiota in Ring1aKO mice to decreased levels of IgA, and we demonstrated that metronidazole administration could ameliorate colitis progression in Ring1aKO mice, likely by reducing the abundance of the Prevotella genus. We also elucidated the immune landscape of DSS colitis and revealed the disruption of intestinal immune homeostasis associated with Ring1a deficiency. Collectively, these findings highlight Ring1a as a prospective candidate risk gene for colitis and suggest metronidazole as a potential therapeutic option for clinically managing Prevotella genus-dominated colitis.
Collapse
Affiliation(s)
- Yashu Wang
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Qianru Li
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Jiayu Zhang
- Lab of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Pingping Liu
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Huaixin Zheng
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Lijuan Chen
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Kunpeng Institute of Modern Agriculture at Foshan, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Zhen Wang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Kunpeng Institute of Modern Agriculture at Foshan, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Chen Tan
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Min Zhang
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Hongxia Zhang
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Wenqing Miao
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Yuke Wang
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Xiaoyan Xuan
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Guoqiang Yi
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Kunpeng Institute of Modern Agriculture at Foshan, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Peng Wang
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
- Infection, Inflammation and Immunity Center, the Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| |
Collapse
|
5
|
Hidalgo-García L, Ruiz-Malagon AJ, Huertas F, Rodríguez-Sojo MJ, Molina-Tijeras JA, Diez-Echave P, Becerra P, Mirón B, Morón R, Rodríguez-Nogales A, Gálvez J, Rodríguez-Cabezas ME, Anderson P. Administration of intestinal mesenchymal stromal cells reduces colitis-associated cancer in C57BL/6J mice modulating the immune response and gut dysbiosis. Pharmacol Res 2023; 195:106891. [PMID: 37586618 DOI: 10.1016/j.phrs.2023.106891] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/22/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND Patients with inflammatory bowel disease (IBD) have a higher risk of developing colitis-associated colorectal cancer (CAC) with poor prognosis. IBD etiology remains undefined but involves environmental factors, genetic predisposition, microbiota imbalance (dysbiosis) and mucosal immune defects. Mesenchymal stromal cell (MSC) injections have shown good efficacy in reducing intestinal inflammation in animal and human studies. However, their effect on tumor growth in CAC and their capacity to restore gut dysbiosis are not clear. METHODS The outcome of systemic administrations of in vitro expanded human intestinal MSCs (iMSCs) on tumor growth in vivo was evaluated using the AOM/DSS model of CAC in C57BL/6J mice. Innate and adaptive immune responses in blood, mesenteric lymph nodes (MLNs) and colonic tissue were analyzed by flow cytometry. Intestinal microbiota composition was evaluated by 16S rRNA amplicon sequencing. RESULTS iMSCs significantly inhibited colitis and intestinal tumor development, reducing IL-6 and COX-2 expression, and IL-6/STAT3 and PI3K/Akt signaling. iMSCs decreased colonic immune cell infiltration, and partly restored intestinal monocyte homing and differentiation. iMSC administration increased the numbers of Tregs and IFN-γ+CD8+ T cells in the MLNs while decreasing the IL-4+Th2 response. It also ameliorated intestinal dysbiosis in CAC mice, increasing diversity and Bacillota/Bacteroidota ratio, as well as Akkermansia abundance, while reducing Alistipes and Turicibacter, genera associated with inflammation. CONCLUSION Administration of iMSCs protects against CAC, ameliorating colitis and partially reverting intestinal dysbiosis, supporting the use of MSCs for the treatment of IBD.
Collapse
Affiliation(s)
- Laura Hidalgo-García
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Antonio Jesús Ruiz-Malagon
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Francisco Huertas
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain; Servicio de Cirugía, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain
| | - María Jesús Rodríguez-Sojo
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - José Alberto Molina-Tijeras
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Patricia Diez-Echave
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Patricia Becerra
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain; Servicio de Anatomía Patológica, Hospital Universitario Clínico San Cecilio, 18014 Granada, Spain
| | - Benito Mirón
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain; Servicio de Cirugía, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain
| | - Rocío Morón
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain; Servicio Farmacia Hospitalaria, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain
| | - Alba Rodríguez-Nogales
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain.
| | - Julio Gálvez
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain; Centro de Investigación Biomédica En Red para Enfermedades Hepáticas y Digestivas (CIBER-EHD), School of Pharmacy, University of Granada, 18071 Granada, Spain.
| | - María Elena Rodríguez-Cabezas
- Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Per Anderson
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain; Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain; Departamento de Bioquímica, Biología Molecular e Inmunología III, University of Granada, 18016 Granada, Spain
| |
Collapse
|
6
|
Chen B, Wu Y, Wu H, Meng X, Chen H. Establishment of Food Allergy Model in Dextran Sulfate Sodium Induced Colitis Mice. Foods 2023; 12:foods12051007. [PMID: 36900524 PMCID: PMC10001293 DOI: 10.3390/foods12051007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 03/03/2023] Open
Abstract
Food allergy (FA) has become a global food safety issue. Evidence suggests that inflammatory bowel disease (IBD) can increase the incidence of FA, but it is mostly based on epidemiological studies. An animal model is pivotal for unraveling the mechanisms involved. However, dextran sulfate sodium (DSS)-induced IBD models may cause substantial animal losses. To better investigate the effect of IBD on FA, this study aimed to establish a murine model to fit both IBD and FA symptoms. Firstly, we compared three DSS-induced colitis models by monitoring survival rate, disease activity index, colon length, and spleen index, and then eliminated the colitis model with a 7-day administration of 4% due to high mortality. Moreover, we evaluated the modeling effects on FA and intestinal histopathology of the two models selected and found the modeling effects were similar in both the colitis model with a 7-day administration of 3% DSS and the colitis model with long-term administration of DSS. However, for animal survival reasons, we recommend the colitis model with long-term administration of DSS.
Collapse
Affiliation(s)
- Bihua Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Yuhong Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Huan Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Xuanyi Meng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
- Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, China
| | - Hongbing Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
- Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, China
- Correspondence:
| |
Collapse
|
7
|
Almarzooqi S, Venkataraman B, Raj V, Alkuwaiti SAA, Das KM, Collin PD, Adrian TE, Subramanya SB. β-Myrcene Mitigates Colon Inflammation by Inhibiting MAP Kinase and NF-κB Signaling Pathways. Molecules 2022; 27:molecules27248744. [PMID: 36557879 PMCID: PMC9782154 DOI: 10.3390/molecules27248744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
Inflammatory bowel diseases (IBDs) are chronic inflammatory disorders that include Crohn's disease (CD) and ulcerative colitis (UC). The incidence of IBD is rising globally. However, the etiology of IBD is complex and governed by multiple factors. The current clinical treatment for IBD mainly includes steroids, biological agents and need-based surgery, based on the severity of the disease. Current drug therapy is often associated with adverse effects, which limits its use. Therefore, it necessitates the search for new drug candidates. In this pursuit, phytochemicals take the lead in the search for drug candidates to benefit from IBD treatment. β-myrcene is a natural phytochemical compound present in various plant species which possesses potent anti-inflammatory activity. Here we investigated the role of β-myrcene on colon inflammation to explore its molecular targets. We used 2% DSS colitis and TNF-α challenged HT-29 adenocarcinoma cells as in vivo and in vitro models. Our result indicated that the administration of β-myrcene in dextran sodium sulfate (DSS)-treated mice restored colon length, decreased disease activity index (DAI), myeloperoxidase (MPO) enzyme activity and suppressed proinflammatory mediators. β-myrcene administration suppressed mitogen-activated protein kinases (MAPKs) and nuclear factor-κB (NF-κB) pathways to limit inflammation. β-myrcene also suppressed mRNA expression of proinflammatory chemokines in tumor necrosis factor-α (TNF-α) challenged HT-29 adenocarcinoma cells. In conclusion, β-myrcene administration suppresses colon inflammation by inhibiting MAP kinases and NF-κB pathways.
Collapse
Affiliation(s)
- Saeeda Almarzooqi
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Balaji Venkataraman
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Vishnu Raj
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Sultan Ali Abdulla Alkuwaiti
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Karuna M. Das
- Department of Radiology, Center for Health Sciences, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | | | - Thomas E. Adrian
- Department of Basic Medical Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates
| | - Sandeep B. Subramanya
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence:
| |
Collapse
|
8
|
Pinget GV, Tan JK, Ni D, Taitz J, Daien CI, Mielle J, Moore RJ, Stanley D, Simpson S, King NJC, Macia L. Dysbiosis in imiquimod-induced psoriasis alters gut immunity and exacerbates colitis development. Cell Rep 2022; 40:111191. [PMID: 35977500 DOI: 10.1016/j.celrep.2022.111191] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 05/30/2022] [Accepted: 07/19/2022] [Indexed: 11/17/2022] Open
Abstract
Psoriasis has long been associated with inflammatory bowel disease (IBD); however, a causal link is yet to be established. Here, we demonstrate that imiquimod-induced psoriasis (IMQ-pso) in mice disrupts gut homeostasis, characterized by increased proportions of colonic CX3CR1hi macrophages, altered cytokine production, and bacterial dysbiosis. Gut microbiota from these mice produce higher levels of succinate, which induce de novo proliferation of CX3CR1hi macrophages ex vivo, while disrupted gut homeostasis primes IMQ-pso mice for more severe colitis with dextran sulfate sodium (DSS) challenge. These results demonstrate that changes in the gut environment in psoriasis lead to greater susceptibility to IBD in mice, suggesting a two-hit requirement, that is, psoriasis-induced altered gut homeostasis and a secondary environmental challenge. This may explain the increased prevalence of IBD in patients with psoriasis.
Collapse
Affiliation(s)
- Gabriela Veronica Pinget
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; School of Medical Sciences, Chronic Diseases Theme, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jian Kai Tan
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; School of Medical Sciences, Chronic Diseases Theme, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Duan Ni
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; School of Medical Sciences, Chronic Diseases Theme, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jemma Taitz
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; School of Medical Sciences, Chronic Diseases Theme, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Claire Immediato Daien
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; CHRU Montpellier, University of Montpellier & INSERM U1046, CNRS UMR, PhyMedExp, 9214 Montpellier, France
| | - Julie Mielle
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; CHRU Montpellier, University of Montpellier & INSERM U1046, CNRS UMR, PhyMedExp, 9214 Montpellier, France
| | | | - Dragana Stanley
- School of Health, Medical and Applied Sciences, Central Queensland University, Kawana, QLD 4701, Australia
| | - Stephen Simpson
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; School of Life and Environmental Sciences, Faculty of Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | - Nicholas Jonathan Cole King
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; School of Medical Sciences, Chronic Diseases Theme, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Laurence Macia
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; School of Medical Sciences, Chronic Diseases Theme, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; Sydney Cytometry, The University of Sydney, Sydney, NSW 2006, Australia.
| |
Collapse
|
9
|
Lindholm M, Di Sabatino A, Manon-Jensen T, Mazza G, Madsen GI, Giuffrida P, Pinzani M, Krag A, Karsdal MA, Kjeldsen J, Mortensen JH. A Serological Biomarker of Laminin Gamma 1 Chain Degradation Reflects Altered Basement Membrane Remodeling in Crohn's Disease and DSS Colitis. Dig Dis Sci 2022; 67:3662-3671. [PMID: 34561759 DOI: 10.1007/s10620-021-07252-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 09/08/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND The laminin gamma 1 chain (LMγ1) is abundant along the crypt-villus axis in the intestinal basement membrane. AIMS We investigated whether a serological biomarker of laminin degradation was associated with disease activity in patients with Crohn's disease (CD) and in rats with dextran sulfate sodium (DSS)-induced colitis. METHODS Serum samples from CD patients (n = 43), healthy subjects (n = 19), and Sprague Dawley rats receiving 5-6% DSS water for five days and regular drinking water for 11 days were included in this study. The LG1M biomarker, a neo-epitope degradation fragment of the LMγ1 chain generated by matrix metalloproteinases-9 (MMP-9), was measured in serum to estimate the level of laminin degradation. RESULTS Serum LG1M was elevated in CD patients with active and inactive disease compared to healthy subjects (p < 0.0001). LG1M distinguished CD patients from healthy subjects, with an area under the curve (AUC) of 0.81 (p < 0.0001). Serum LG1M was decreased in DSS rats compared to controls 2 days after DSS withdrawal, and increased upon reversal of the disease. CONCLUSIONS Increased serum LG1M in active and inactive CD patients supports the evidence of altered LM expression in both inflamed and non-inflamed tissue. Moreover, lower LG1M levels in the early healing phase of DSS-induced colitis may reflect ongoing mucosal repair.
Collapse
Affiliation(s)
- Majken Lindholm
- Biomarkers and Research, Nordic Bioscience, Herlev hovedgade 205-207, 2730, Herlev, Denmark. .,Department of Medical Gastroenterology, University of Southern Denmark and Odense University Hospital, Odense, Denmark.
| | - Antonio Di Sabatino
- First Department of Internal Medicine, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Tina Manon-Jensen
- Biomarkers and Research, Nordic Bioscience, Herlev hovedgade 205-207, 2730, Herlev, Denmark
| | - Giuseppe Mazza
- Institute for Liver and Digestive Health, University College of London, London, UK
| | - Gunvor I Madsen
- Department of Surgical Pathology, Odense University Hospital, Odense, Denmark
| | - Paolo Giuffrida
- First Department of Internal Medicine, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Massimo Pinzani
- Institute for Liver and Digestive Health, University College of London, London, UK
| | - Aleksander Krag
- Department of Medical Gastroenterology, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Morten A Karsdal
- Biomarkers and Research, Nordic Bioscience, Herlev hovedgade 205-207, 2730, Herlev, Denmark
| | - Jens Kjeldsen
- Department of Medical Gastroenterology, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Joachim H Mortensen
- Biomarkers and Research, Nordic Bioscience, Herlev hovedgade 205-207, 2730, Herlev, Denmark
| |
Collapse
|
10
|
Sinha A, Li Y, Mirzaei MK, Shamash M, Samadfam R, King IL, Maurice CF. Transplantation of bacteriophages from ulcerative colitis patients shifts the gut bacteriome and exacerbates the severity of DSS colitis. Microbiome 2022; 10:105. [PMID: 35799219 PMCID: PMC9264660 DOI: 10.1186/s40168-022-01275-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/13/2022] [Indexed: 05/03/2023]
Abstract
BACKGROUND Inflammatory bowel diseases (IBDs) including Crohn's disease (CD) and ulcerative colitis (UC) are characterized by chronic and debilitating gut inflammation. Altered bacterial communities of the intestine are strongly associated with IBD initiation and progression. The gut virome, which is primarily composed of bacterial viruses (bacteriophages, phages), is thought to be an important factor regulating and shaping microbial communities in the gut. While alterations in the gut virome have been observed in IBD patients, the contribution of these viruses to alterations in the bacterial community and heightened inflammatory responses associated with IBD patients remains largely unknown. RESULTS Here, we performed in vivo microbial cross-infection experiments to follow the effects of fecal virus-like particles (VLPs) isolated from UC patients and healthy controls on bacterial diversity and severity of experimental colitis in human microbiota-associated (HMA) mice. Shotgun metagenomics confirmed that several phages were transferred to HMA mice, resulting in treatment-specific alterations in the gut virome. VLPs from healthy and UC patients also shifted gut bacterial diversity of these mice, an effect that was amplified during experimental colitis. VLPs isolated from UC patients specifically altered the relative abundance of several bacterial taxa previously implicated in IBD progression. Additionally, UC VLP administration heightened colitis severity in HMA mice, as indicated by shortened colon length and increased pro-inflammatory cytokine production. Importantly, this effect was dependent on intact VLPs. CONCLUSIONS Our findings build on recent literature indicating that phages are dynamic regulators of bacterial communities in the gut and implicate the intestinal virome in modulating intestinal inflammation and disease. Video Abstract.
Collapse
Affiliation(s)
- Anshul Sinha
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada
| | - Yue Li
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Mohammadali Khan Mirzaei
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada
- Institute of Virology, Helmholtz Center Munich and Technical University of Munich, 85764, Neuherberg, Bavaria, Germany
| | - Michael Shamash
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada
| | - Rana Samadfam
- Charles River Laboratories, 22022 Transcanadienne, Senneville, QC, H9X 3R3, Canada
| | - Irah L King
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada.
- McGill Interdisciplinary Initiative in Infection and Immunity, Montreal, QC, Canada.
| | - Corinne F Maurice
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada.
- McGill Interdisciplinary Initiative in Infection and Immunity, Montreal, QC, Canada.
| |
Collapse
|
11
|
Ha SE, Jorgensen BG, Wei L, Jin B, Kim MS, Poudrier SM, Singh R, Bartlett A, Zogg H, Kim S, Baek G, Kurahashi M, Lee MY, Kim YS, Choi SC, Sasse KC, Rubin SJS, Gottfried-Blackmore A, Becker L, Habtezion A, Sanders KM, Ro S. Metalloendopeptidase ADAM-like Decysin 1 (ADAMDEC1) in Colonic Subepithelial PDGFRα + Cells Is a New Marker for Inflammatory Bowel Disease. Int J Mol Sci 2022; 23:5007. [PMID: 35563399 DOI: 10.3390/ijms23095007] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 12/25/2022] Open
Abstract
Metalloendopeptidase ADAM-Like Decysin 1 (ADAMDEC1) is an anti-inflammatory peptidase that is almost exclusively expressed in the gastrointestinal (GI) tract. We have recently found abundant and selective expression of Adamdec1 in colonic mucosal PDGFRα+ cells. However, the cellular origin for this gene expression is controversial as it is also known to be expressed in intestinal macrophages. We found that Adamdec1 mRNAs were selectively expressed in colonic mucosal subepithelial PDGFRα+ cells. ADAMDEC1 protein was mainly released from PDGFRα+ cells and accumulated in the mucosal layer lamina propria space near the epithelial basement membrane. PDGFRα+ cells significantly overexpressed Adamdec1 mRNAs and protein in DSS-induced colitis mice. Adamdec1 was predominantly expressed in CD45- PDGFRα+ cells in DSS-induced colitis mice, with only minimal expression in CD45+ CD64+ macrophages. Additionally, overexpression of both ADAMDEC1 mRNA and protein was consistently observed in PDGFRα+ cells, but not in CD64+ macrophages found in human colonic mucosal tissue affected by Crohn's disease. In summary, PDGFRα+ cells selectively express ADAMDEC1, which is localized to the colon mucosa layer. ADAMDEC1 expression significantly increases in DSS-induced colitis affected mice and Crohn's disease affected human tissue, suggesting that this gene can serve as a diagnostic and/or therapeutic target for intestinal inflammation and Crohn's disease.
Collapse
|
12
|
Dougherty U, Mustafi R, Zhu H, Zhu X, Deb D, Meredith SC, Ayaloglu-Butun F, Fletcher M, Sanchez A, Pekow J, Deng Z, Amini N, Konda VJ, Rao VL, Sakuraba A, Kwesi A, Kupfer SS, Fichera A, Joseph L, Hart J, He F, He TC, West-Szymanski D, Li YC, Bissonnette M. Upregulation of polycistronic microRNA-143 and microRNA-145 in colonocytes suppresses colitis and inflammation-associated colon cancer. Epigenetics 2021; 16:1317-1334. [PMID: 33356812 PMCID: PMC8813074 DOI: 10.1080/15592294.2020.1863117] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/08/2020] [Accepted: 12/07/2020] [Indexed: 12/25/2022] Open
Abstract
Because ADAM17 promotes colonic tumorigenesis, we investigated potential miRNAs regulating ADAM17; and examined effects of diet and tumorigenesis on these miRNAs. We also examined pre-miRNA processing and tumour suppressor roles of several of these miRNAs in experimental colon cancer. Using TargetScan, miR-145, miR-148a, and miR-152 were predicted to regulate ADAM17. miR-143 was also investigated as miR-143 and miR-145 are co-transcribed and associated with decreased tumour growth. HCT116 colon cancer cells (CCC) were co-transfected with predicted ADAM17-regulating miRNAs and luciferase reporters controlled by ADAM17-3'UTR. Separately, pre-miR-143 processing by colonic cells was measured. miRNAs were quantified by RT-PCR. Tumours were induced with AOM/DSS in WT and transgenic mice (Tg) expressing pre-miR-143/miR-145 under villin promoter. HCT116 transfection with miR-145, -148a or -152, but not scrambled miRNA inhibited ADAM17 expression and luciferase activity. The latter was suppressed by mutations in ADAM17-3'UTR. Lysates from colonocytes, but not CCC, processed pre-miR-143 and mixing experiments suggested CCC lacked a competency factor. Colonic miR-143, miR-145, miR-148a, and miR-152 were downregulated in tumours and more moderately by feeding mice a Western diet. Tg mice were resistant to DSS colitis and had significantly lower cancer incidence and tumour multiplicity. Tg expression blocked up-regulation of putative targets of miR-143 and miR-145, including ADAM17, K-Ras, XPO5, and SET. miR-145, miR-148a, and miR-152 directly suppress colonocyte ADAM17 and are down-regulated in colon cancer. This is the first direct demonstration of tumour suppressor roles for miR-143 and miR-145 in an in vivo model of colonic tumorigenesis.
Collapse
Affiliation(s)
| | - Reba Mustafi
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Hongyan Zhu
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Xiaorong Zhu
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Dilip Deb
- Department of Medicine, University of Chicago, Chicago IL, USA
| | | | | | | | - Arantxa Sanchez
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Joel Pekow
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Zifeng Deng
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Nader Amini
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Vani J Konda
- Department of Medicine, Baylor University, Dallas, TX, USA
| | - Vijaya L. Rao
- Department of Medicine, University of Chicago, Chicago IL, USA
| | | | - Akushika Kwesi
- Department of Medicine, University of Chicago, Chicago IL, USA
| | - Sonia S Kupfer
- Department of Medicine, University of Chicago, Chicago IL, USA
| | | | - Loren Joseph
- Departments of Pathology, Beth Israel, Harvard Medical School, Boston, MA, USA
| | - John Hart
- Departments of Pathology, University of Chicago, Chicago IL, USA
| | - Fang He
- Departments of Orthopedics, The University of Chicago, Chicago, IL, USA
| | - Tong-Chuan He
- Departments of Orthopedics, The University of Chicago, Chicago, IL, USA
| | | | - Yan Chun Li
- Department of Medicine, University of Chicago, Chicago IL, USA
| | | |
Collapse
|
13
|
Manzini R, Schwarzfischer M, Atrott K, Laimbacher A, Lang S, Wawrzyniak M, Rickenbacher A, Turina M, Hruz P, Lissner D, Siegmund B, Rogler G, Scharl M, Spalinger MR. Combination of Vedolizumab With Tacrolimus Is More Efficient Than Vedolizumab Alone in the Treatment of Experimental Colitis. Inflamm Bowel Dis 2021; 27:1986-1998. [PMID: 33847343 DOI: 10.1093/ibd/izab063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Vedolizumab is a widely used and safe therapy in inflammatory bowel disease, particularly in ulcerative colitis (UC), making it a promising candidate for enhanced efficacy by combining it with additional immunomodulatory medications. In this study, we studied the impact of vedolizumab monotreatment vs vedolizumab coadministration with other immunomodulatory drugs on intestinal inflammation and intestinal immune cells in vivo. METHODS Colon tissue from human patients with UC with active disease or in remission with or without vedolizumab treatment was stained by immunohistochemistry. We reconstituted NOD-SCID-SGM3 mice with human CD34+ cells and treated them with dextran sodium sulfate to induce acute colitis. Mice were treated with vedolizumab alone, or in combination with tacrolimus, ozanimid, or tofacitinib. RESULTS Vedolizumab reduced the number of CD3+ T cells and CD68+ monocytes/macrophages in the colon of patients with UC with active disease. Vedolizumab moderately decreased immune cell numbers in acute dextran sodium sulfate-induced colitis. The combination of vedolizumab with tacrolimus further reduced the number of infiltrating CD3+ T cells and CD68+ monocytes/macrophages and was superior in ameliorating intestinal inflammation when compared to vedolizumab monotreatment. In contrast, cotreatment using vedolizumab with ozanimod or tofacitinib had no additive effect. CONCLUSIONS Our data show that vedolizumab reduces the number of innate and adaptive immune cells in the mucosa of patients with UC. Further, the combination of vedolizumab with tacrolimus was more efficient to reduce immune cell numbers and to increase therapeutic efficacy than vedolizumab monotreatment. This finding indicates that combination treatment using these two drugs may be beneficial for patients who do not respond to vedolizumab monotherapy.
Collapse
Affiliation(s)
- Roberto Manzini
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland
| | - Marlene Schwarzfischer
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland
| | - Kirstin Atrott
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland
| | - Andrea Laimbacher
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland
| | - Silvia Lang
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland
| | - Marcin Wawrzyniak
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland
| | - Andreas Rickenbacher
- Department of Visceral and Transplantation Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Matthias Turina
- Department of Visceral and Transplantation Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Petr Hruz
- Clarunis Universitäres Bauchzentrum Basel, University Hospital Basel, Basel, Switzerland
| | - Donata Lissner
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Campus Benjamin Franklin. Department for Medicine (Gastroenterology, Infectious Diseases, Rheumatology), Berlin,Germany
| | - Britta Siegmund
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Campus Benjamin Franklin. Department for Medicine (Gastroenterology, Infectious Diseases, Rheumatology), Berlin,Germany
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland.,Zurich Center for Integrated Human Physiology, University of Zurich, Zurich, Switzerland
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland.,Zurich Center for Integrated Human Physiology, University of Zurich, Zurich, Switzerland
| | - Marianne R Spalinger
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich,Switzerland
| |
Collapse
|
14
|
Regensburger D, Tenkerian C, Pürzer V, Schmid B, Wohlfahrt T, Stolzer I, López-Posadas R, Günther C, Waldner MJ, Becker C, Sticht H, Petter K, Flierl C, Gass T, Thoenissen T, Geppert CI, Britzen-Laurent N, Méniel VS, Ramming A, Stürzl M, Naschberger E. Matricellular Protein SPARCL1 Regulates Blood Vessel Integrity and Antagonizes Inflammatory Bowel Disease. Inflamm Bowel Dis 2021; 27:1491-1502. [PMID: 33393634 PMCID: PMC8376124 DOI: 10.1093/ibd/izaa346] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND The understanding of vascular plasticity is key to defining the role of blood vessels in physiologic and pathogenic processes. In the present study, the impact of the vascular quiescence marker SPARCL1 on angiogenesis, capillary morphogenesis, and vessel integrity was evaluated. METHODS Angiogenesis was studied using the metatarsal test, an ex vivo model of sprouting angiogenesis. In addition, acute and chronic dextran sodium sulfate colitis models with SPARCL1 knockout mice were applied. RESULTS This approach indicated that SPARCL1 inhibits angiogenesis and supports vessel morphogenesis and integrity. Evidence was provided that SPARCL1-mediated stabilization of vessel integrity counteracts vessel permeability and inflammation in acute and chronic dextran sodium sulfate colitis models. Structure-function analyses of purified SPARCL1 identified the acidic domain of the protein necessary for its anti-angiogenic activity. CONCLUSIONS Our findings inaugurate SPARCL1 as a blood vessel-derived anti-angiogenic molecule required for vessel morphogenesis and integrity. SPARCL1 opens new perspectives as a vascular marker of susceptibility to colitis and as a therapeutic molecule to support blood vessel stability in this disease.
Collapse
Affiliation(s)
- Daniela Regensburger
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Clara Tenkerian
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Victoria Pürzer
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Schmid
- Optical Imaging Centre, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Wohlfahrt
- Department of Internal Medicine 3, Rheumatology and Immunology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Iris Stolzer
- Department of Medicine 1, Gastroenterology, Pneumology and Endocrinology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rocío López-Posadas
- Department of Medicine 1, Gastroenterology, Pneumology and Endocrinology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Claudia Günther
- Department of Medicine 1, Gastroenterology, Pneumology and Endocrinology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Maximilian J Waldner
- Department of Medicine 1, Gastroenterology, Pneumology and Endocrinology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christoph Becker
- Department of Medicine 1, Gastroenterology, Pneumology and Endocrinology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Heinrich Sticht
- Division of Bioinformatics, Institute of Biochemistry, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Katja Petter
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christian Flierl
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Tobias Gass
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Tim Thoenissen
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Carol I Geppert
- Institute of Pathology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Nathalie Britzen-Laurent
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Valérie S Méniel
- European Cancer Stem Cell Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Andreas Ramming
- Department of Internal Medicine 3, Rheumatology and Immunology, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Medical Center Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| |
Collapse
|
15
|
Zullo KM, Douglas B, Maloney NM, Ji Y, Wei Y, Herbine K, Cohen R, Pastore C, Cramer Z, Wang X, Wei W, Somsouk M, Hung LY, Lengner C, Kohanski MH, Cohen NA, Herbert DR. LINGO3 regulates mucosal tissue regeneration and promotes TFF2 dependent recovery from colitis. Scand J Gastroenterol 2021; 56:791-805. [PMID: 33941035 PMCID: PMC8647134 DOI: 10.1080/00365521.2021.1917650] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Aim: Recovery of damaged mucosal surfaces following inflammatory insult requires diverse regenerative mechanisms that remain poorly defined. Previously, we demonstrated that the reparative actions of Trefoil Factor 3 (TFF3) depend upon the enigmatic receptor, leucine rich repeat and immunoglobulin-like domain containing nogo receptor 2 (LINGO2). This study examined the related orphan receptor LINGO3 in the context of intestinal tissue damage to determine whether LINGO family members are generally important for mucosal wound healing and maintenance of the intestinal stem cell (ISC) compartment needed for turnover of mucosal epithelium.Methods and Results: We find that LINGO3 is broadly expressed on human enterocytes and sparsely on discrete cells within the crypt niche, that contains ISCs. Loss of function studies indicate that LINGO3 is involved in recovery of normal intestinal architecture following dextran sodium sulfate (DSS)-induced colitis, and that LINGO3 is needed for therapeutic action of the long acting TFF2 fusion protein (TFF2-Fc), including a number of signaling pathways critical for cell proliferation and wound repair. LINGO3-TFF2 protein-protein interactions were relatively weak however and LINGO3 was only partially responsible for TFF2 induced MAPK signaling suggesting additional un-identified components of a receptor complex. However, deficiency in either TFF2 or LINGO3 abrogated budding/growth of intestinal organoids and reduced expression of the intestinal ISC gene leucine-rich repeat-containing G-protein coupled receptor 5 (LGR5), indicating homologous roles for these proteins in tissue regeneration, possibly via regulation of ISCs in the crypt niche.Conclusion: We propose that LINGO3 serves a previously unappreciated role in promoting mucosal wound healing.
Collapse
Affiliation(s)
- Kelly M. Zullo
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Bonnie Douglas
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Nicole M. Maloney
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Yingbiao Ji
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Yun Wei
- Department of Medicine, Division of Experimental Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Karl Herbine
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Rachel Cohen
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Christopher Pastore
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Zvi Cramer
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Xin Wang
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Wenjie Wei
- Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19147
| | - Ma Somsouk
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Li Yin Hung
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104,Department of Medicine, Division of Experimental Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Christopher Lengner
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104
| | - Michael H. Kohanski
- Department of Otorhinolaryngology—Head and Neck Surgery, Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA 19104,The Corporal Michael J. Crescenz VA Medical Center Surgical Service, Philadelphia, PA 19104
| | - Noam A. Cohen
- Department of Otorhinolaryngology—Head and Neck Surgery, Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA 19104,The Corporal Michael J. Crescenz VA Medical Center Surgical Service, Philadelphia, PA 19104,Monell Chemical Senses Center, Philadelphia, PA 19104
| | - De’Broski R. Herbert
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104,Department of Medicine, Division of Experimental Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| |
Collapse
|
16
|
Arredondo-Amador M, Aranda CJ, Ocón B, González R, Martínez-Augustin O, Sánchez de Medina F. Epithelial deletion of the glucocorticoid receptor (Nr3c1) protects the mouse intestine against experimental inflammation. Br J Pharmacol 2021; 178:2482-2495. [PMID: 33684964 DOI: 10.1111/bph.15434] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND AND PURPOSE Glucocorticoids are the first line treatment for the flare-ups of inflammatory bowel disease, but they have significant limitations. The objective of this study is to investigate whether glucocorticoid epithelial actions contribute to such limitations. EXPERIMENTAL APPROACH Intestinal epithelium glucocorticoid receptor knockout mice (Nr3c1ΔIEC ) received dextran sulfate sodium (DSS) to induce colitis. Inflammatory status was assessed by morphological and biochemical methods, and corticoid production was measured in colonic explants. Some mice were administered budesonide. KEY RESULTS After 7 days of DSS Nr3c1ΔIEC , mice exhibited 23.1% lower disease activity index (DAI) and 37% lower diarrheal score than WT mice, with decreased weight loss in days 5-7 of colitis, attenuated tissue damage, reduced colonic expression of S100A9 and STAT3 phosphorylation, and a better overall state. Ki67 immunoreactivity was increased at the crypt base, indicating enhanced epithelial proliferation. Mice administered budesonide (6 μg·day-1 PO) showed modest antiinflammatory effects but increased weight loss, which was prevented in knockout mice. Epithelial deletion of the glucocorticoid receptor also protected mice in a protracted colitis protocol. Conversely, knockout mice presented a worse status compared to the control group at 1 day post DSS. In a separate experiment, colonic corticosterone production was shown to be significantly increased in knockout mice at 7 days of colitis but not at earlier stages. CONCLUSIONS AND IMPLICATIONS The intestinal epithelial glucocorticoid receptor has deleterious effects in experimental colitis induced by DSS, probably related to inhibition of epithelial proliferative responses leading to impaired wound healing and reduced endogenous corticosterone production.
Collapse
Affiliation(s)
- María Arredondo-Amador
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), School of Pharmacy, Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, Granada, Spain
| | - Carlos J Aranda
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), School of Pharmacy, Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, Granada, Spain
| | - Borja Ocón
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), School of Pharmacy, Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, Granada, Spain
| | - Raquel González
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), School of Pharmacy, Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, Granada, Spain
| | - Olga Martínez-Augustin
- Department of Biochemistry and Molecular Biology II, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), School of Pharmacy, Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, Granada, Spain
| | - Fermín Sánchez de Medina
- Department of Pharmacology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), School of Pharmacy, Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, Granada, Spain
| |
Collapse
|
17
|
Venkataraman B, Almarzooqi S, Raj V, Alhassani AT, Alhassani AS, Ahmed KJ, Subramanian VS, Ojha SK, Attoub S, Adrian TE, Subramanya SB. Thymoquinone, a Dietary Bioactive Compound, Exerts Anti-Inflammatory Effects in Colitis by Stimulating Expression of the Colonic Epithelial PPAR-γ Transcription Factor. Nutrients 2021; 13:1343. [PMID: 33920708 DOI: 10.3390/nu13041343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/07/2021] [Accepted: 04/15/2021] [Indexed: 01/24/2023] Open
Abstract
Inflammatory bowel diseases (IBD) are chronic inflammatory disorders with increasing incidence and prevalence worldwide. Here, we investigated thymoquinone (TQ), a naturally occurring phytochemical present in Nigella sativa, for anti-inflammatory effects in colonic inflammation. To address this, we used in vivo (mice) and in vitro (HT-29 cells) models in this investigation. Our results showed that TQ treatment significantly reduced the disease activity index (DAI), myeloperoxidase (MPO) activity, and protected colon microscopic architecture. In addition, TQ also reduced the expression of proinflammatory cytokines and mediators at both the mRNA and protein levels. Further, TQ decreased phosphorylation of the activated mitogen-activated protein kinase (MAPK) signaling pathway and nuclear factor kappa B (NF-κB) proteins and enhanced colon epithelial PPAR-γ transcription factor expression. TQ significantly decreased proinflammatory chemokines (CXCL-1 and IL-8), and mediator (COX-2) mRNA expression in HT-29 cells treated with TNF-α. TQ also increased HT-29 PPAR-γ mRNA, PPAR-γ protein expression, and PPAR-γ promoter activity. These results indicate that TQ inhibits MAPK and NF-κB signaling pathways and transcriptionally regulates PPAR-γ expression to induce potent anti-inflammatory activity in vivo and in vitro models of colon inflammation.
Collapse
|
18
|
Bédard A, Westerling-Bui T, Zuraw A. Proof of Concept for a Deep Learning Algorithm for Identification and Quantification of Key Microscopic Features in the Murine Model of DSS-Induced Colitis. Toxicol Pathol 2021; 49:897-904. [PMID: 33576323 DOI: 10.1177/0192623320987804] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Inflammatory bowel disease (IBD) is a complex disease which leads to life-threatening complications and decreased quality of life. The dextran sulfate sodium (DSS) colitis model in mice is known for rapid screening of candidate compounds. Efficacy assessment in this model relies partly on microscopic semiquantitative scoring, which is time-consuming and subjective. We hypothesized that deep learning artificial intelligence (AI) could be used to identify acute inflammation in H&E-stained sections in a consistent and quantitative manner. Training sets were established using ×20 whole slide images of the entire colon. Supervised training of a Convolutional Neural Network (CNN) was performed using a commercial AI platform to detect the entire colon tissue, the muscle and mucosa layers, and 2 categories within the mucosa (normal and acute inflammation E1). The training sets included slides of naive, vehicle-DSS and cyclosporine A-DSS mice. The trained CNN was able to segment, with a high level of concordance, the different tissue compartments in the 3 groups of mice. The segmented areas were used to determine the ratio of E1-affected mucosa to total mucosa. This proof-of-concept work shows promise to increase efficiency and decrease variability of microscopic scoring of DSS colitis when screening candidate compounds for IBD.
Collapse
Affiliation(s)
- Agathe Bédard
- Pathology Department, 25913Charles River, Senneville, Quebec, Canada
| | | | - Aleksandra Zuraw
- Pathology Department, 25913Charles River, Senneville, Quebec, Canada
| |
Collapse
|
19
|
Conde J, Schwarzfischer M, Katkeviciute E, Häfliger J, Niechcial A, Brillant N, Manzini R, Bäbler K, Atrott K, Lang S, Scharl M. Titanium Dioxide Presents a Different Profile in Dextran Sodium Sulphate-Induced Experimental Colitis in Mice Lacking the IBD Risk Gene Ptpn2 in Myeloid Cells. Int J Mol Sci 2021; 22:E772. [PMID: 33466682 PMCID: PMC7828807 DOI: 10.3390/ijms22020772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/06/2021] [Accepted: 01/10/2021] [Indexed: 12/13/2022] Open
Abstract
Environmental and genetic factors have been demonstrated to contribute to the development of inflammatory bowel disease (IBD). Recent studies suggested that the food additive; titanium dioxide (TiO2) might play a causative role in the disease. Therefore, in the present study we aimed to explore the interaction between the food additive TiO2 and the well-characterized IBD risk gene protein tyrosine phosphatase non-receptor type 2 (Ptpn2) and their role in the development of intestinal inflammation. Dextran sodium sulphate (DSS)-induced acute colitis was performed in mice lacking the expression of Ptpn2 in myeloid cells (Ptpn2LysMCre) or their wild type littermates (Ptpn2fl/fl) and exposed to the microparticle TiO2. The impact of Ptpn2 on TiO2 signalling pathways and TiO2-induced IL-1β and IL-10 levels were studied using bone marrow-derived macrophages (BMDMs). Ptpn2LysMCre exposed to TiO2 exhibited more severe intestinal inflammation than their wild type counterparts. This effect was likely due to the impact of TiO2 on the differentiation of intestinal macrophages, suppressing the number of anti-inflammatory macrophages in Ptpn2 deficient mice. Moreover, we also found that TiO2 was able to induce the secretion of IL-1β via mitogen-activated proteins kinases (MAPKs) and to repress the expression of IL-10 in bone marrow-derived macrophages via MAPK-independent pathways. This is the first evidence of the cooperation between the genetic risk factor Ptpn2 and the environmental factor TiO2 in the regulation of intestinal inflammation. The results presented here suggest that the ingestion of certain industrial compounds should be taken into account, especially in individuals with increased genetic risk.
Collapse
Affiliation(s)
- Javier Conde
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (M.S.); (E.K.); (J.H.); (A.N.); (N.B.); (R.M.); (K.B.); (K.A.); (S.L.)
| | | | | | | | | | | | | | | | | | | | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (M.S.); (E.K.); (J.H.); (A.N.); (N.B.); (R.M.); (K.B.); (K.A.); (S.L.)
| |
Collapse
|
20
|
Pasricha TS, Zhang H, Zhang N, Chen JDZ. Sacral nerve stimulation prompts vagally-mediated amelioration of rodent colitis. Physiol Rep 2020; 8:e14294. [PMID: 31925899 PMCID: PMC6954119 DOI: 10.14814/phy2.14294] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 10/28/2019] [Indexed: 12/19/2022] Open
Abstract
Neuromodulation based on the vagal anti‐inflammatory reflex has emerged as an exciting therapeutic approach for chronic inflammatory diseases. However, it is unclear whether direct stimulation of the vagus or of pelvic nerves coming from sacral roots, providing the bulk of colonic parasympathetic innervation, is the best approach. We hypothesized that sacral nerve stimulation (SNS) would be an effective treatment for colitis. Age and sex‐matched Sprague‐Dawley rats were administered 5% dextran sulphate sodium (DSS) in drinking water ad libitum for 7 days. A group of rats was sacrificed after DSS treatment, and the remaining rats were randomized to either sham‐SNS or SNS groups, which were performed for 1 hr daily for 10 days. Stimulations were delivered via chronically implanted electrodes using an 8‐channel universal pulse generator. Sacral nerve stimulation promoted recovery of colitis demonstrated by decreased disease activity index, myeloperoxidase activity, tissue TNF‐alpha, and histological scores as well as an increased colonic M2 macrophage population. Heart rate variability analysis demonstrated a decrease in low frequency and increase in high frequency with SNS, corresponding to increased vagal tone. Additionally, plasma pancreatic peptide was increased and norepinephrine was decreased after SNS in colitis while colon tissue acetylcholine was increased with SNS. This is the first study to the best of our knowledge that demonstrates the benefit of SNS with autonomic mediation. SNS alters the expression of inflammatory cytokines and macrophages as well as modulates neurotransmitters involved in systemic inflammation.
Collapse
Affiliation(s)
| | - Han Zhang
- Division of Gastroenterology and Hepatology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Nina Zhang
- Division of Gastroenterology and Hepatology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Jiande D Z Chen
- Division of Gastroenterology and Hepatology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| |
Collapse
|
21
|
Chulkina MM, Pichugin AV, Ataullakhanov RI. Pharmaceutical grade synthetic peptide Thr-Glu-Lys-Lys-Arg-Arg-Glu-Thr-Val-Glu-Arg-Glu-Lys-Glu ameliorates DSS-induced murine colitis by reducing the number and pro-inflammatory activity of colon tissue-infiltrating Ly6G + granulocytes and Ly6C + monocytes. Peptides 2020; 132:170364. [PMID: 32621844 DOI: 10.1016/j.peptides.2020.170364] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 01/08/2023]
Abstract
A pharmaceutical grade synthetic tetradecapeptide Thr-Glu-Lys-Lys-Arg-Arg-Glu-Thr-Val-Glu-Arg-Glu-Lys-Glu (GEPON) that mimics the ezrin protein hinge region was studied in dextran sodium sulphate-induced murine experimental colitis (DSS colitis). We report that GEPON intraperitoneal injections significantly attenuated DSS-induced pathological manifestations in the large intestine, bloody diarrhoea, and body weight loss in C57BL/6 mice. GEPON markedly inhibited the transcription rate of pro-inflammatory Il1b, Il6, and Nos2 genes in the colon tissue, in contrast with those encoding anti-inflammatory factors, such as Tgfb1, I10, and Arg1, whose transcription rate did not change significantly. Using flow cytometry, we found that GEPON treatment significantly reduced the accumulation of Ly6G+ granulocytes and Ly6C+ monocytes in the colon infiltrate of DSS colitis mice. Analysis of the mRNA level in myeloid cells sorted from the colon tissue revealed that GEPON had decreased the expression of pro-inflammatory genes in both colon-infiltrating Ly6G+ granulocytes and Ly6C+ monocytes, but not in Ly6C-CD64+ macrophages of DSS-treated mice. The direct anti-inflammatory impact of GEPON was shown in an in vitro culture of Ly6C+ monocytes, as evidenced by an inhibition of IL-1 beta and IL-6 mRNA expression. Taken together, our results demonstrated that GEPON had a pronounced therapeutic effect on ulcerative colitis in a laboratory mice model and provided evidence of its curative efficacy via inhibition of colon tissue inflammation by decreasing Ly6G+ granulocyte and Ly6C+ monocyte infiltration and by reducing their pro-inflammatory activities.
Collapse
Affiliation(s)
- M M Chulkina
- National Research Center - Institute of Immunology, Federal Medical-Biological Agency of Russia, Moscow, Russia.
| | - A V Pichugin
- National Research Center - Institute of Immunology, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - R I Ataullakhanov
- National Research Center - Institute of Immunology, Federal Medical-Biological Agency of Russia, Moscow, Russia.
| |
Collapse
|
22
|
Saber S, El-Kader EMA. Novel complementary coloprotective effects of metformin and MCC950 by modulating HSP90/NLRP3 interaction and inducing autophagy in rats. Inflammopharmacology 2021; 29:237-51. [PMID: 32594364 DOI: 10.1007/s10787-020-00730-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 06/07/2020] [Indexed: 12/14/2022]
Abstract
Ulcerative colitis (UC) is a chronic and relapsing inflammatory disorder, which has an increased incidence worldwide. The NLRP3 inflammasome has recently been assigned as a promising target for several inflammatory diseases including bowel inflammation. We aimed to investigate the potential complementary effects of combined therapy of metformin and MCC950 in dextran sodium sulfate (DSS)-induced colitis in rats. Metformin/MCC950 mitigated colon shortening, disease activity index (DAI), and macroscopic damage index (MDI). It also improved the colon histology picture and reduced the inflammation score. In addition, metformin/MCC950 augmented the antioxidant defense machinery and attenuated the myeloperoxidase (MPO) activity. Moreover, the levels of the pro-inflammatory mediators tumor necrosis factor alpha (TNFα) and interleukin-6 (IL-6) were reduced. This pharmacological activity might be attributed to interrupting the priming signal of the NLRP3 inflammasome activation through inactivating Toll-like receptor 4 (TLR4)/nuclear transcription factor kappa-B (NF-κB) signalling (effect of metformin) as well as interrupting the activation signal through potent inhibition of NLRP3 expression and caspase-1 (effect of MCC950). As a result, significant inhibition of the production of the bioactive IL-1β and IL-18 occurred, and hence the pyroptosis process was inhibited. Moreover, the metformin/MCC950 leads to the induction of autophagy by AMP-activated protein kinase (AMPK)-dependent mechanisms leading to the accumulation of Beclin-1 and a substantial decline in the levels of p62 SQSTM1 (effect of metformin). The observed impeding effect on HSP90 along with inducing autophagy (effect of metformin) suggests that NLRP3 is prone to autophagic degradation. In conclusion, we reveal that the combination of metformin with MCC950 has a protective role in DSS-induced colitis and might become a candidate in a promising approach for the future treatment of human UC.
Collapse
|
23
|
Li Y, Pan H, Liu JX, Li T, Liu S, Shi W, Sun C, Fan M, Xue L, Wang Y, Nie C, Zhang H, Qian H, Ying H, Wang L. l-Arabinose Inhibits Colitis by Modulating Gut Microbiota in Mice. J Agric Food Chem 2019; 67:13299-13306. [PMID: 31674784 DOI: 10.1021/acs.jafc.9b05829] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
l-Arabinose is a monosaccharide extracted from plants or fibers, which is known to have a variety of functional properties. In this study, we aim to investigate whether l-arabinose could inhibit colitis by modulating gut microbiota. l-Arabinose was administered in mice daily in a dextran sodium sulfate (DSS)-induced colitis model. The histological analysis, disease index, and the expression of inflammatory genes were measured. 16S-rRNA sequence analysis was performed to investigate gut microbiota. Intriguingly, we found that l-arabinose could repress DSS-induced colitis and inhibit p38-/p65-dependent inflammation activation. Besides that, our data revealed that l-arabinose-modulated DSS-induced gut microbiota were disturbed. Additionally, the perturbed gut microbiota was responsible for the suppressive effects of l-arabinose on DSS-induced colitis treated with antibiotics. Lastly, Caco-2 cells were used to confirm the protective effects of l-arabinose in colitis or inflammatory bowel disease. As expected, the protein expression levels in Caco-2 cells of pro-inflammatory genes, which were treated with l-arabinose and incubated with or without tumor necrosis factor alpha. Our work suggested that l-arabinose exerts anti-inflammation effects in DSS-induced colitis. These beneficial effects have correlations with the composition, diversity, and abundance of the gut microbiota regulated by l-arabinose. l-Arabinose could be a remarkable candidate as a functional food or novel therapeutic strategy for intestinal health.
Collapse
Affiliation(s)
- Yan Li
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Haiou Pan
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Jin-Xin Liu
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Tingting Li
- Department of Food Science and Engineering, College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing 210037 , Jiangsu , China
| | - Shengnan Liu
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institutes for Biological Sciences , Chinese Academy of Sciences , Shanghai 200031 , Shanghai , China
| | - Wenli Shi
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institutes for Biological Sciences , Chinese Academy of Sciences , Shanghai 200031 , Shanghai , China
| | - Chao Sun
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institutes for Biological Sciences , Chinese Academy of Sciences , Shanghai 200031 , Shanghai , China
| | - Mingcong Fan
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Lamei Xue
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Yu Wang
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Chenzhipeng Nie
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Hui Zhang
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Haifeng Qian
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| | - Hao Ying
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institutes for Biological Sciences , Chinese Academy of Sciences , Shanghai 200031 , Shanghai , China
| | - Li Wang
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , Nanjing 210037 , Jiangsu , China
| |
Collapse
|
24
|
Royal JM, Reeves MA, Matoba N. Repeated Oral Administration of a KDEL-tagged Recombinant Cholera Toxin B Subunit Effectively Mitigates DSS Colitis Despite a Robust Immunogenic Response. Toxins (Basel) 2019; 11:E678. [PMID: 31756977 PMCID: PMC6950078 DOI: 10.3390/toxins11120678] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 11/18/2019] [Accepted: 11/19/2019] [Indexed: 12/22/2022] Open
Abstract
Cholera toxin B subunit (CTB), a non-toxic homopentameric component of Vibrio cholerae holotoxin, is an oral cholera vaccine antigen that induces an anti-toxin antibody response. Recently, we demonstrated that a recombinant CTB variant with a Lys-Asp-Glu-Leu (KDEL) endoplasmic reticulum retention motif (CTB-KDEL) exhibits colon mucosal healing effects that have therapeutic implications for inflammatory bowel disease (IBD). Herein, we investigated the feasibility of CTB-KDEL for the treatment of chronic colitis. We found that weekly oral administration of CTB-KDEL, dosed before or after the onset of chronic colitis, induced by repeated dextran sodium sulfate (DSS) exposure, could significantly reduce disease activity index scores, intestinal permeability, inflammation, and histological signs of chronicity. To address the consequences of immunogenicity, mice (C57BL/6 or C3H/HeJ strains) were pre-exposed to CTB-KDEL then subjected to DSS colitis and CTB-KDEL treatment. While the pre-dosing of CTB-KDEL elicited high-titer anti-drug antibodies (ADAs) of the immunoglobin A (IgA) isotype in the intestine of C57BL/6 mice, the therapeutic effects of CTB-KDEL were similar to those observed in C3H/HeJ mice, which showed minimal ADAs under the same experimental conditions. Thus, the immunogenicity of CTB-KDEL does not seem to impede the protein's mucosal healing efficacy. These results support the development of CTB-KDEL for IBD therapy.
Collapse
Affiliation(s)
- Joshua M. Royal
- James Graham Brown Cancer Center, Center for Predictive Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA;
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA;
| | - Micaela A. Reeves
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA;
| | - Nobuyuki Matoba
- James Graham Brown Cancer Center, Center for Predictive Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA;
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA;
| |
Collapse
|
25
|
Schmidt F, Dahlke K, Batra A, Keye J, Wu H, Friedrich M, Glauben R, Ring C, Loh G, Schaubeck M, Hackl H, Trajanoski Z, Schumann M, Kühl AA, Blaut M, Siegmund B. Microbial Colonization in Adulthood Shapes the Intestinal Macrophage Compartment. J Crohns Colitis 2019; 13:1173-1185. [PMID: 30938416 DOI: 10.1093/ecco-jcc/jjz036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Contact with distinct microbiota early in life has been shown to educate the mucosal immune system, hence providing protection against immune-mediated diseases. However, the impact of early versus late colonization with regard to the development of the intestinal macrophage compartment has not been studied so far. METHODS Germ-free mice were colonized with specific-pathogen-free [SPF] microbiota at the age of 5 weeks. The ileal and colonic macrophage compartment were analysed by immunohistochemistry, flow cytometry, and RNA sequencing 1 and 5 weeks after colonization and in age-matched SPF mice, which had had contact with microbiota since birth. To evaluate the functional differences, dextran sulfate sodium [DSS]-induced colitis was induced, and barrier function analyses were undertaken. RESULTS Germ-free mice were characterized by an atrophied intestinal wall and a profoundly reduced number of ileal macrophages. Strikingly, morphological restoration of the intestine occurred within the first week after colonization. In contrast, ileal macrophages required 5 weeks for complete restoration, whereas colonic macrophages were numerically unaffected. However, following DSS exposure, the presence of microbiota was a prerequisite for colonic macrophage infiltration. One week after colonization, mild colonic inflammation was observed, paralleled by a reduced inflammatory response after DSS treatment, in comparison with SPF mice. This attenuated inflammation was paralleled by a lack of TNFα production of LPS-stimulated colonic macrophages from SPF and colonized mice, suggesting desensitization of colonized mice by the colonization itself. CONCLUSIONS This study provides the first data indicating that after colonization of adult mice, the numeric, phenotypic, and functional restoration of the macrophage compartment requires the presence of intestinal microbiota and is time dependent.
Collapse
Affiliation(s)
- Franziska Schmidt
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Fachbereich Biologie, Chemie, Pharmazie, Freie Universität Berlin, Berlin, Germany
| | - Katja Dahlke
- Department of Gastrointestinal Microbiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Arvind Batra
- Neuroimmunology, Max-Planck-Institute of Neurobiology, Planegg-Martinsried, Germany
| | - Jacqueline Keye
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Fachbereich Biologie, Chemie, Pharmazie, Freie Universität Berlin, Berlin, Germany
| | - Hao Wu
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Fachbereich Biologie, Chemie, Pharmazie, Freie Universität Berlin, Berlin, Germany
| | - Marie Friedrich
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Fachbereich Biologie, Chemie, Pharmazie, Freie Universität Berlin, Berlin, Germany
| | - Rainer Glauben
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Christiane Ring
- Department of Gastrointestinal Microbiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Gunnar Loh
- Department of Gastrointestinal Microbiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Monika Schaubeck
- Neuroimmunology, Max-Planck-Institute of Neurobiology, Planegg-Martinsried, Germany
| | - Hubert Hackl
- Biocenter, Division of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Zlatko Trajanoski
- Biocenter, Division of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Michael Schumann
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Anja A Kühl
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Michael Blaut
- Department of Gastrointestinal Microbiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Britta Siegmund
- Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| |
Collapse
|
26
|
Acharya S, Timilshina M, Chang JH. Mevalonate promotes differentiation of regulatory T cells. J Mol Med (Berl) 2019; 97:927-936. [PMID: 31020340 DOI: 10.1007/s00109-019-01784-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 03/25/2019] [Accepted: 04/01/2019] [Indexed: 12/13/2022]
Abstract
Mevalonate is a precursor in a biosynthetic pathway that is important for the coordination of regulatory T cell (Treg) proliferation and upregulation of the suppressive function that establishes the functional competency of Tregs. The extensive role of mevalonate and its underlying effect on Treg differentiation are still unclear. We found that mevalonate increases in vitro differentiation of induced Tregs (iTregs) without broadly affecting Th1 and Th17 cell differentiation. Furthermore, an adoptive transfer study showed that mevalonate enhanced peripherally induced Treg cells (pTregs) in mesenteric lymphocytes in vivo. Mevalonate-treated iTregs exhibited greater suppressive activity against effector cells than untreated Tregs. Mechanistically, mevalonate enhanced transforming growth factor (TGF)-β signaling by increasing the phosphorylation of Smad3, but not Smad2, and by promoting Foxp3 expression. Furthermore, we demonstrated that mevalonate treatment ameliorated dextran sulfate sodium (DSS)-induced colitis and resulted in an increased percentage of Tregs in vivo. Our results suggest that mevalonate enhanced Treg differentiation and ameliorated DSS colitis, indicating its potential for treatment of inflammatory diseases.
Collapse
Affiliation(s)
- Suman Acharya
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, South Korea
| | | | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, South Korea.
| |
Collapse
|
27
|
Vezza T, Algieri F, Garrido-Mesa J, Utrilla MP, Rodríguez-Cabezas ME, Baños A, Guillamón E, García F, Rodríguez-Nogales A, Gálvez J. The Immunomodulatory Properties of Propyl-Propane Thiosulfonate Contribute to its Intestinal Anti-Inflammatory Effect in Experimental Colitis. Mol Nutr Food Res 2019; 63:e1800653. [PMID: 30516875 DOI: 10.1002/mnfr.201800653] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 11/13/2018] [Indexed: 12/16/2022]
Abstract
SCOPE Propyl-propane thiosulfonate (PTSO) is a component isolated from garlic (Allium sativum) with antioxidant, anti-inflammatory, immunomodulatory, and antimicrobial properties. In consequence, PTSO can be a potential candidate for the treatment of inflammatory bowel diseases. METHODS AND RESULTS The anti-inflammatory effects of PTSO are studied in two mice models of colitis: 2,4-dinitrobenzene sulfonic acid (DNBS) (PTSO doses: 0.01-10 mg kg-1 ) and dextran sodium sulfate (DSS) (PTSO doses: 0.01-0.1 mg kg-1 ). The immunomodulatory effects of PTSO (0.1-25 µm) are also shown in vitro in Caco-2 and THP-1 cells, reducing the production of pro-inflammatory mediators and downregulating mitogen-activated protein kinases (MAPKs) signaling pathways. This compound displays beneficial effects in both models of mouse colitis by reducing the expression of different pro-inflammatory mediators and improving the intestinal epithelial barrier integrity. Moreover, PTSO ameliorates the altered gut microbiota composition observed in DSS colitic mice. CONCLUSION PTSO exerts intestinal anti-inflammatory activity in experimental colitis in mice. This anti-inflammatory activity can be associated with the immunomodulatory properties of PTSO through the regulation of the activity of cells involved in the inflammatory response. Furthermore, PTSO is able to restore the intestinal epithelial barrier function and to ameliorate the intestinal microbiota homeostasis, thus supporting its future development in human IBD.
Collapse
Affiliation(s)
- Teresa Vezza
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Francesca Algieri
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - José Garrido-Mesa
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - María Pilar Utrilla
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - María Elena Rodríguez-Cabezas
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | | | | | - Federico García
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain.,Clinical Microbiology Service, Red de Investigación en SIDA, Hospital Universitario San Cecilio, 18016, Granada, Spain
| | - Alba Rodríguez-Nogales
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Julio Gálvez
- CIBER-EHD, Department of Pharmacology, Centre for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| |
Collapse
|
28
|
Gemechu Y, Millrine D, Hashimoto S, Prakash J, Sanchenkova K, Metwally H, Gyanu P, Kang S, Kishimoto T. Humanized cereblon mice revealed two distinct therapeutic pathways of immunomodulatory drugs. Proc Natl Acad Sci U S A 2018; 115:11802-11807. [PMID: 30373817 PMCID: PMC6243262 DOI: 10.1073/pnas.1814446115] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Immunomodulatory drugs (IMiDs), including thalidomide derivatives such as lenalidomide and pomalidomide, offer therapeutic benefit in several hematopoietic malignancies and autoimmune/inflammatory diseases. However, it is difficult to study the IMiD mechanism of action in murine disease models because murine cereblon (CRBN), the substrate receptor for IMiD action, is resistant to some of IMiDs therapeutic effects. To overcome this difficulty, we generated humanized cereblon (CRBNI391V) mice thereby providing an animal model to unravel complex mechanisms of action in a murine physiological setup. In our current study, we investigated the degradative effect toward IKZF1 and CK-1α, a target substrate of IMiDs. Unlike WT mice which were resistant to lenalidomide and pomalidomide, T lymphocytes from CRBNI391V mice responded with a higher degree of IKZF1 and CK-1α protein degradation. Furthermore, IMiDs resulted in an increase in IL-2 among CRBNI391V mice but not in the WT group. We have also tested a thalidomide derivative, FPFT-2216, which showed an inhibitory effect toward IKZF1 protein level. As opposed to pomalidomide, FPFT-2216 and lenalidomide degrades CK-1α. Additionally, we assessed the potential therapeutic effects of IMiDs in dextran sodium sulfate (DSS)-induced colitis. In both WT and humanized mice, lenalidomide showed a significant therapeutic effect in the DSS model of colitis, while the effect of pomalidomide was less pronounced. Thus, while IMiDs' degradative effect on IKZF1 and CK-1α, and up-regulation of IL-2, is dependent on CRBN, the therapeutic benefit of IMiDs in a mouse model of inflammatory bowel disease occurs through a CRBN-IMiD binding region independent pathway.
Collapse
Affiliation(s)
- Yohannes Gemechu
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - David Millrine
- Division of Infection and Immunity, School of Medicine, Cardiff University, Wales CF14 4XN, United Kingdom
| | - Shigeru Hashimoto
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Jaya Prakash
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Ksenia Sanchenkova
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Hozaifa Metwally
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Parajuli Gyanu
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Sujin Kang
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Tadamitsu Kishimoto
- Laboratory of Immune Regulation, World Premier International Research Center Initiative (WPI) Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan;
| |
Collapse
|
29
|
Lopetuso LR, De Salvo C, Pastorelli L, Rana N, Senkfor HN, Petito V, Di Martino L, Scaldaferri F, Gasbarrini A, Cominelli F, Abbott DW, Goodman WA, Pizarro TT. IL-33 promotes recovery from acute colitis by inducing miR-320 to stimulate epithelial restitution and repair. Proc Natl Acad Sci U S A 2018; 115:E9362-70. [PMID: 30224451 DOI: 10.1073/pnas.1803613115] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Defective and/or delayed wound healing has been implicated in the pathogenesis of several chronic inflammatory disorders, including inflammatory bowel disease (IBD). The resolution of inflammation is particularly important in mucosal organs, such as the gut, where restoration of epithelial barrier function is critical to reestablish homeostasis with the interfacing microenvironment. Although IL-33 and its receptor ST2/ILRL1 are known to be increased and associated with IBD, studies using animal models of colitis to address the mechanism have yielded ambiguous results, suggesting both pathogenic and protective functions. Unlike those previously published studies, we focused on the functional role of IL-33/ST2 during an extended (2-wk) recovery period after initial challenge in dextran sodium sulfate (DSS)-induced colitic mice. Our results show that during acute, resolving colitis the normal function of endogenous IL-33 is protection, and the lack of either IL-33 or ST2 impedes the overall recovery process, while exogenous IL-33 administration during recovery dramatically accelerates epithelial restitution and repair, with concomitant improvement of colonic inflammation. Mechanistically, we show that IL-33 stimulates the expression of a network of microRNAs (miRs) in the Caco2 colonic intestinal epithelial cell (IEC) line, especially miR-320, which is increased by >16-fold in IECs isolated from IL-33-treated vs. vehicle-treated DSS colitic mice. Finally, IL-33-dependent in vitro proliferation and wound closure of Caco-2 IECs is significantly abrogated after specific inhibition of miR-320A. Together, our data indicate that during acute, resolving colitis, IL-33/ST2 plays a crucial role in gut mucosal healing by inducing epithelial-derived miR-320 that promotes epithelial repair/restitution and the resolution of inflammation.
Collapse
|
30
|
Fukata T, Mizushima T, Nishimura J, Okuzaki D, Wu X, Hirose H, Yokoyama Y, Kubota Y, Nagata K, Tsujimura N, Inoue A, Miyoshi N, Haraguchi N, Takahashi H, Hata T, Matsuda C, Kayama H, Takeda K, Doki Y, Mori M, Yamamoto H. The Supercarbonate Apatite-MicroRNA Complex Inhibits Dextran Sodium Sulfate-Induced Colitis. Mol Ther Nucleic Acids 2018; 12:658-671. [PMID: 30092402 PMCID: PMC6083010 DOI: 10.1016/j.omtn.2018.07.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 07/07/2018] [Accepted: 07/10/2018] [Indexed: 01/02/2023]
Abstract
The incidence of inflammatory bowel disease (IBD) is increasing. Nucleic acid-based medicine has potential as a next-generation treatment, but it is rarely successful with IBD. The aim of this study was to establish a microRNA-based therapy in an IBD model. For this purpose, we used microRNA-29 (miR-29) and a supercarbonate apatite (sCA) nanoparticle as a drug delivery system. Injection of sCA-miR-29a-3p or sCA-miR-29b-3p into mouse tail veins markedly prevented and restored inflammation because of dextran sulfate sodium (DSS)-induced colitis. RNA sequencing analysis revealed that miR-29a and miR-29b could inhibit the interferon-associated inflammatory cascade. Subcutaneous injection of sCA-miR-29b also potently inhibited inflammation, and it efficiently targeted CD11c+ dendritic cells (DCs) among various types of immune cells in the inflamed mucosa. RT-PCR analysis indicated that the miR-29 RNAs in CD11c+ DCs suppressed the production of interleukin-6 (IL-6), transforming growth factor β (TGF-β), and IL-23 subunits in DSS-treated mice. This may inhibit Th17 differentiation and subsequent activation, which is critical in IBD pathogenesis. In vivo experiments using a non-natural artificial microRNA sequence revealed that targeting of DCs in the inflamed colon is an exceptional feature of sCA. This study suggests that sCA-miR-29s may open a new avenue in nucleic acid-based medicine for IBD treatment.
Collapse
Affiliation(s)
- Tadafumi Fukata
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Tsunekazu Mizushima
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Junichi Nishimura
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Yamadaoka 3-1, Suita City, Osaka, Japan
| | - Xin Wu
- Department of Molecular Pathology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Yamadaoka 1-7, Suita City, Osaka, Japan
| | - Haruka Hirose
- Department of Molecular Pathology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Yamadaoka 1-7, Suita City, Osaka, Japan
| | - Yuhki Yokoyama
- Department of Molecular Pathology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Yamadaoka 1-7, Suita City, Osaka, Japan
| | - Yui Kubota
- Department of Molecular Pathology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Yamadaoka 1-7, Suita City, Osaka, Japan
| | - Kazuya Nagata
- Department of Molecular Pathology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Yamadaoka 1-7, Suita City, Osaka, Japan
| | - Naoto Tsujimura
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Akira Inoue
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Norikatsu Miyoshi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Naotsugu Haraguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Hidekazu Takahashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Taishi Hata
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Chu Matsuda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Hisako Kayama
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Yamadaoka 2-2, Suita City, Osaka, Japan; Laboratory of Mucosal Immunology, WPI Immunology Frontier Research Center, Osaka University, Yamadaoka3-1, Suita City, Osaka, Japan
| | - Kiyoshi Takeda
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Yamadaoka 2-2, Suita City, Osaka, Japan; Laboratory of Mucosal Immunology, WPI Immunology Frontier Research Center, Osaka University, Yamadaoka3-1, Suita City, Osaka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Masaki Mori
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan
| | - Hirofumi Yamamoto
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita City, Osaka, Japan; Department of Molecular Pathology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Yamadaoka 1-7, Suita City, Osaka, Japan.
| |
Collapse
|
31
|
May S, Owen H, Phesse TJ, Greenow KR, Jones G, Blackwood A, Cook PC, Towers C, Gallimore AM, Williams GT, Stürzl M, Britzen‐Laurent N, Sansom OJ, MacDonald AS, Bird AP, Clarke AR, Parry L. Mbd2 enables tumourigenesis within the intestine while preventing tumour-promoting inflammation. J Pathol 2018; 245:270-282. [PMID: 29603746 PMCID: PMC6032908 DOI: 10.1002/path.5074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 02/22/2018] [Accepted: 03/08/2018] [Indexed: 01/14/2023]
Abstract
Epigenetic regulation plays a key role in the link between inflammation and cancer. Here we examine Mbd2, which mediates epigenetic transcriptional silencing by binding to methylated DNA. In separate studies the Mbd2-/- mouse has been shown (1) to be resistant to intestinal tumourigenesis and (2) to have an enhanced inflammatory/immune response, observations that are inconsistent with the links between inflammation and cancer. To clarify its role in tumourigenesis and inflammation, we used constitutive and conditional models of Mbd2 deletion to explore its epithelial and non-epithelial roles in the intestine. Using a conditional model, we found that suppression of intestinal tumourigenesis is due primarily to the absence of Mbd2 within the epithelia. Next, we demonstrated, using the DSS colitis model, that non-epithelial roles of Mbd2 are key in preventing the transition from acute to tumour-promoting chronic inflammation. Combining models revealed that prior to inflammation the altered Mbd2-/- immune response plays a role in intestinal tumour suppression. However, following inflammation the intestine converts from tumour suppressive to tumour promoting. To summarise, in the intestine the normal function of Mbd2 is exploited by cancer cells to enable tumourigenesis, while in the immune system it plays a key role in preventing tumour-enabling inflammation. Which role is dominant depends on the inflammation status of the intestine. As environmental interactions within the intestine can alter DNA methylation patterns, we propose that Mbd2 plays a key role in determining whether these interactions are anti- or pro-tumourigenic and this makes it a useful new epigenetic model for inflammation-associated carcinogenesis. © 2018 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
Collapse
Affiliation(s)
- Stephanie May
- European Cancer Stem Cell Research InstituteCardiff University, School of BiosciencesCardiffUK
| | - Heather Owen
- Wellcome Trust Centre for Cell BiologyUniversity of Edinburgh, Michael Swann BuildingEdinburghUK
| | - Toby J Phesse
- European Cancer Stem Cell Research InstituteCardiff University, School of BiosciencesCardiffUK
| | - Kirsty R Greenow
- European Cancer Stem Cell Research InstituteCardiff University, School of BiosciencesCardiffUK
| | - Gareth‐Rhys Jones
- Manchester Collaborative Centre for Inflammation ResearchManchesterUK
| | - Adam Blackwood
- European Cancer Stem Cell Research InstituteCardiff University, School of BiosciencesCardiffUK
| | - Peter C Cook
- Manchester Collaborative Centre for Inflammation ResearchManchesterUK
| | - Christopher Towers
- European Cancer Stem Cell Research InstituteCardiff University, School of BiosciencesCardiffUK
| | - Awen M Gallimore
- Cardiff Institute of Infection and Immunity, Henry Wellcome BuildingCardiffUK
| | - Geraint T Williams
- Institute of Cancer and GeneticsCardiff University School of MedicineCardiffUK
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Department of SurgeryFriedrich‐Alexander‐Universität (FAU) Erlangen‐Nürnberg and Universitätsklinikum ErlangenErlangenGermany
| | - Nathalie Britzen‐Laurent
- Division of Molecular and Experimental Surgery, Department of SurgeryFriedrich‐Alexander‐Universität (FAU) Erlangen‐Nürnberg and Universitätsklinikum ErlangenErlangenGermany
| | | | | | - Adrian P Bird
- Wellcome Trust Centre for Cell BiologyUniversity of Edinburgh, Michael Swann BuildingEdinburghUK
| | - Alan R Clarke
- European Cancer Stem Cell Research InstituteCardiff University, School of BiosciencesCardiffUK
| | - Lee Parry
- European Cancer Stem Cell Research InstituteCardiff University, School of BiosciencesCardiffUK
| |
Collapse
|
32
|
Roy U, Gálvez EJC, Iljazovic A, Lesker TR, Błażejewski AJ, Pils MC, Heise U, Huber S, Flavell RA, Strowig T. Distinct Microbial Communities Trigger Colitis Development upon Intestinal Barrier Damage via Innate or Adaptive Immune Cells. Cell Rep 2018; 21:994-1008. [PMID: 29069606 PMCID: PMC5668567 DOI: 10.1016/j.celrep.2017.09.097] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/15/2017] [Accepted: 09/28/2017] [Indexed: 02/08/2023] Open
Abstract
Inflammatory bowel disease comprises a group of heterogeneous diseases characterized by chronic and relapsing mucosal inflammation. Alterations in microbiota composition have been proposed to contribute to disease development, but no uniform signatures have yet been identified. Here, we compare the ability of a diverse set of microbial communities to exacerbate intestinal inflammation after chemical damage to the intestinal barrier. Strikingly, genetically identical wild-type mice differing only in their microbiota composition varied strongly in their colitis susceptibility. Transfer of distinct colitogenic communities in gene-deficient mice revealed that they triggered disease via opposing pathways either independent or dependent on adaptive immunity, specifically requiring antigen-specific CD4+ T cells. Our data provide evidence for the concept that microbial communities may alter disease susceptibility via different immune pathways despite eventually resulting in similar host pathology. This suggests a potential benefit for personalizing IBD therapies according to patient-specific microbiota signatures. Gut microbiota composition modulates colitis severity in immunocompetent hosts Colitogenic microbiota drive colitis via innate or adaptive immunity Distinct microbiota members induce pathogenic CD4+ T cells to drive colitis
Collapse
Affiliation(s)
- Urmi Roy
- Microbial Immune Regulation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Eric J C Gálvez
- Microbial Immune Regulation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Aida Iljazovic
- Microbial Immune Regulation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Till Robin Lesker
- Microbial Immune Regulation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Adrian J Błażejewski
- Microbial Immune Regulation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Marina C Pils
- Mouse Pathology Platform, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Ulrike Heise
- Mouse Pathology Platform, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Samuel Huber
- I. Medizinische Klinik und Poliklinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA; Howard Hughes Medical Institute, Yale University, New Haven, CT, USA
| | - Till Strowig
- Microbial Immune Regulation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.
| |
Collapse
|
33
|
Singh AK, Hertzberger RY, Knaus UG. Hydrogen peroxide production by lactobacilli promotes epithelial restitution during colitis. Redox Biol 2018; 16:11-20. [PMID: 29471162 PMCID: PMC5835490 DOI: 10.1016/j.redox.2018.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/01/2018] [Accepted: 02/10/2018] [Indexed: 12/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a multifactorial chronic inflammatory disease of the gastrointestinal tract, characterized by cycles of acute flares, recovery and remission phases. Treatments for accelerating tissue restitution and prolonging remission are scarce, but altering the microbiota composition to promote intestinal homeostasis is considered a safe, economic and promising approach. Although probiotic bacteria have not yet fulfilled fully their promise in clinical trials, understanding the mechanism of how they exert beneficial effects will permit devising improved therapeutic strategies. Here we probe if one of the defining features of lactobacilli, the ability to generate nanomolar H2O2, contributes to their beneficial role in colitis. H2O2 generation by wild type L. johnsonii was modified by either deleting or overexpressing the enzymatic H2O2 source(s) followed by orally administering the bacteria before and during DSS colitis. Boosting luminal H2O2 concentrations within a physiological range accelerated recovery from colitis, while significantly exceeding this H2O2 level triggered bacteraemia. This study supports a role for increasing H2O2 within the physiological range at the epithelial barrier, independently of the enzymatic source and/or delivery mechanism, for inducing recovery and remission in IBD.
Collapse
Affiliation(s)
- Ashish K Singh
- Conway Institute, School of Medicine, University College Dublin, Dublin, Ireland
| | - Rosanne Y Hertzberger
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands; NIZO Food Research, Ede, The Netherlands
| | - Ulla G Knaus
- Conway Institute, School of Medicine, University College Dublin, Dublin, Ireland.
| |
Collapse
|
34
|
Rodríguez-Nogales A, Algieri F, Garrido-Mesa J, Vezza T, Utrilla MP, Chueca N, Fernández-Caballero JA, García F, Rodríguez-Cabezas ME, Gálvez J. The Administration of Escherichia coli Nissle 1917 Ameliorates Development of DSS-Induced Colitis in Mice. Front Pharmacol 2018; 9:468. [PMID: 29867475 PMCID: PMC5958303 DOI: 10.3389/fphar.2018.00468] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 04/23/2018] [Indexed: 12/17/2022] Open
Abstract
The beneficial effects of probiotics on immune-based pathologies such as inflammatory bowel disease (IBD) have been well reported. However, their exact mechanisms have not been fully elucidated. Few studies have focused on the impact of probiotics on the composition of the colonic microbiota. The aim of the present study was to correlate the intestinal anti-inflammatory activity of the probiotic Escherichia coli Nissle 1917 (EcN) in the dextran sodium sulfate (DSS) model of mouse colitis with the changes induced in colonic microbiota populations. EcN prevented the DSS-induced colonic damage, as evidenced by lower disease activity index (DAI) values and colonic weight/length ratio, when compared with untreated control mice. The beneficial effects were confirmed biochemically, since the probiotic treatment improved the colonic expression of different cytokines and proteins involved in epithelial integrity. In addition, it restored the expression of different micro-RNAs (miR-143, miR-150, miR-155, miR-223, and miR-375) involved in the inflammatory response that occurs in colitic mice. Finally, the characterization of the colonic microbiota by pyrosequencing showed that the probiotic administration was able to counteract the dysbiosis associated with the intestinal inflammatory process. This effect was evidenced by an increase in bacterial diversity in comparison with untreated colitic mice. The intestinal anti-inflammatory effects of the probiotic EcN were associated with an amelioration of the altered gut microbiome in mouse experimental colitis, especially when considering bacterial diversity, which is reduced in these intestinal conditions. Moreover, this probiotic has shown an ability to modulate expression levels of miRNAs and different mediators of the immune response involved in gut inflammation. This modulation could also be of great interest to understand the mechanism of action of this probiotic in the treatment of IBD.
Collapse
Affiliation(s)
- Alba Rodríguez-Nogales
- CIBEREHD, Department of Pharmacology, Instituto de Investigación Biosanitaria de Granada, Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Francesca Algieri
- CIBEREHD, Department of Pharmacology, Instituto de Investigación Biosanitaria de Granada, Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - José Garrido-Mesa
- CIBEREHD, Department of Pharmacology, Instituto de Investigación Biosanitaria de Granada, Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Teresa Vezza
- CIBEREHD, Department of Pharmacology, Instituto de Investigación Biosanitaria de Granada, Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Maria P Utrilla
- CIBEREHD, Department of Pharmacology, Instituto de Investigación Biosanitaria de Granada, Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Natalia Chueca
- Department of Microbiology, Complejo Hospitalario Universitario de Granada, Instituto de Investigación Biosanitaria de Granada, Granada, Spain
| | - Jose A Fernández-Caballero
- Department of Microbiology, Complejo Hospitalario Universitario de Granada, Instituto de Investigación Biosanitaria de Granada, Granada, Spain
| | - Federico García
- Department of Microbiology, Complejo Hospitalario Universitario de Granada, Instituto de Investigación Biosanitaria de Granada, Granada, Spain
| | - Maria E Rodríguez-Cabezas
- CIBEREHD, Department of Pharmacology, Instituto de Investigación Biosanitaria de Granada, Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Julio Gálvez
- CIBEREHD, Department of Pharmacology, Instituto de Investigación Biosanitaria de Granada, Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| |
Collapse
|
35
|
Subramanya SB, Chandran S, Almarzooqi S, Raj V, Al Zahmi AS, Al Katheeri RA, Al Zadjali SA, Collin PD, Adrian TE. Frondanol, a Nutraceutical Extract from Cucumaria frondosa, Attenuates Colonic Inflammation in a DSS-Induced Colitis Model in Mice. Mar Drugs 2018; 16:E148. [PMID: 29710854 DOI: 10.3390/md16050148] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 04/20/2018] [Accepted: 04/27/2018] [Indexed: 02/07/2023] Open
Abstract
Frondanol is a nutraceutical lipid extract of the intestine of the edible Atlantic sea cucumber, Cucumaria frondosa, with potent anti-inflammatory effects. In the current study, we investigated Frondanol as a putative anti-inflammatory compound in an experimental model of colonic inflammation. C57BL/6J male black mice (C57BL/6J) were given 3% dextran sodium sulfate (DSS) in drinking water for 7 days to induce colitis. The colitis group received oral Frondanol (100 mg/kg body weight/per day by gavage) and were compared with a control group and the DSS group. Disease activity index (DAI) and colon histology were scored for macroscopic and microscopic changes. Colonic tissue length, myeloperoxidase (MPO) concentration, neutrophil and macrophage marker mRNA, pro-inflammatory cytokine proteins, and their respective mRNAs were measured using ELISA and real-time RT-PCR. The tissue content of leukotriene B4 (LTB4) was also measured using ELISA. Frondanol significantly decreased the DAI and reduced the inflammation-associated changes in colon length as well as macroscopic and microscopic architecture of the colon. Changes in tissue MPO concentrations, neutrophil and macrophage mRNA expression (F4/80 and MIP-2), and pro-inflammatory cytokine content (IL-1β, IL-6 and TNF-α) both at the protein and mRNA level were significantly reduced by Frondanol. The increase in content of the pro-inflammatory mediator leukotriene B4 (LTB4) induced by DSS was also significantly inhibited by Frondanol. It was thus found that Frondanol supplementation attenuates colon inflammation through its potent anti-inflammatory activity.
Collapse
|
36
|
Abstract
Several human diseases are thought to evolve due to a combination of host genetic mutations and environmental factors that include alterations in intestinal microbiota composition termed dysbiosis. Although in some cases, host genetics may shape the gut microbiota and enable it to provoke disease, experimentally disentangling cause and consequence in such host-microbe interactions requires strict control over non-genetic confounding factors. Mouse genetic studies previously proposed Nlrp6/ASC inflammasomes as innate immunity regulators of the intestinal ecosystem. In contrast, using littermate-controlled experimental setups, we recently showed that Nlrp6/ASC inflammasomes do not alter the gut microbiota composition. Our analyses indicated that maternal inheritance and long-term separate housing are non-genetic confounders that preclude the use of non-littermate mice when analyzing host genetic effects on intestinal ecology. Here, we summarize and discuss our gut microbiota analyses in inflammasome-deficient mice for illustrating the importance of littermate experimental design in studying host-microbiota interactions.
Collapse
Affiliation(s)
- Michail Mamantopoulos
- Department of Internal Medicine, Ghent University, Ghent, Belgium,VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium,Ghent Gut Inflammation Group (GGIG), Ghent University, Ghent, Belgium
| | - Francesca Ronchi
- Department for BioMedical Research (DBMR), University of Bern, Inselspital, 3012 Bern, Switzerland
| | - Kathy D. McCoy
- Department of Physiology and Pharmacology and Gastrointestinal Research Group, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary AB T2N 4N1, Canada
| | - Andy Wullaert
- Department of Internal Medicine, Ghent University, Ghent, Belgium,VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium,Ghent Gut Inflammation Group (GGIG), Ghent University, Ghent, Belgium,CONTACT Andy Wullaert
| |
Collapse
|
37
|
Aboura I, Nani A, Belarbi M, Murtaza B, Fluckiger A, Dumont A, Benammar C, Tounsi MS, Ghiringhelli F, Rialland M, Khan NA, Hichami A. Protective effects of polyphenol-rich infusions from carob (Ceratonia siliqua) leaves and cladodes of Opuntia ficus-indica against inflammation associated with diet-induced obesity and DSS-induced colitis in Swiss mice. Biomed Pharmacother 2017; 96:1022-1035. [PMID: 29221725 DOI: 10.1016/j.biopha.2017.11.125] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 11/20/2017] [Accepted: 11/27/2017] [Indexed: 12/11/2022] Open
Abstract
In the present study, we have investigated the effects of polyphenol-rich infusions from carob leaves and OFI-cladodes on inflammation associated with obesity and dextran sulfate sodium (DSS)-induced ulcerative colitis in Swiss mice. In vitro studies revealed that aqueous extracts of carob leaves and OFI-cladodes exhibited anti-inflammatory properties marked by the inhibition of IL-6, TNF-α and nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells concomitant with NF-κβ nucleus translocation inhibition. For in vivo investigations, Swiss male mice were subjected to control or high fat diet (HFD). At the 8th week after the start of study, animals received or not 1% infusion of either carob leaves or OFI-cladode for 4 weeks and were subjected to 2% DSS administration in drinking water over last 7 days. After sacrifice, pro-inflammatory cytokines levels in plasma and their mRNA expression in different organs were determined. Results showed that carob leaf and OFI-cladode infusions reduced inflammation severity associated with HFD-induced obesity and DSS-induced acute colitis indicated by decrease in pro-inflammatory cytokines expression (as such TNF-α, IL1b and IL-6) in colon, adipose tissue and spleen. In addition, plasma levels of IL-6 and TNF-α were also curtailed in response to infusions treatment. Thus, carob leaf and OFI-cladode infusions prevented intestinal permeability through the restoration of tight junction proteins (Zo1, occludins) and immune homeostasis. Hence, the anti-inflammatory effect of carob leaves and OFI-cladodes could be attributed to their polyphenols which might alleviate inflammation severity associated with obesity and colitis.
Collapse
Affiliation(s)
- Ikram Aboura
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France; Laboratory of Natural Products, University of Abou-Bekr Belkaid, Tlemcen 13000, Algeria
| | - Abdelhafid Nani
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France; Laboratory of Natural Products, University of Abou-Bekr Belkaid, Tlemcen 13000, Algeria; Department of Natural and Life Sciences, African University Ahmed Draia, Adrar, Algeria.
| | - Meriem Belarbi
- Laboratory of Natural Products, University of Abou-Bekr Belkaid, Tlemcen 13000, Algeria
| | - Babar Murtaza
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Aurélie Fluckiger
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Adélie Dumont
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Chahid Benammar
- Laboratory of Natural Products, University of Abou-Bekr Belkaid, Tlemcen 13000, Algeria
| | - Moufida Saidani Tounsi
- Laboratoire des Plantes Aromatiques et Médicinales, Centre de Biotechnologie de Borj-Cédria, Hammam-Lif, Tunisia
| | | | - Mickaël Rialland
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Naim Akhtar Khan
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Aziz Hichami
- INSERM U1231, Université de Bourgogne Franche-Comté, 21000 Dijon, France.
| |
Collapse
|
38
|
Hoffmann M, Schwertassek U, Seydel A, Weber K, Falk W, Hauschildt S, Lehmann J. A refined and translationally relevant model of chronic DSS colitis in BALB/c mice. Lab Anim 2017; 52:240-252. [PMID: 29192559 DOI: 10.1177/0023677217742681] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Inflammatory bowel diseases (IBD) are chronic relapsing disorders of the gastrointestinal tract. Several mouse models for IBD are available, but the acute dextran sulfate sodium (DSS)-induced colitis model is mostly used for preclinical studies. However, this model lacks chronicity and often leads to significant loss of mice. The aim of this study was to establish a refined and translationally relevant model of DSS chronic colitis in BALB/c mice. In the first part, we compared several standard therapeutic (ST) treatments for IBD in the acute DSS colitis model to identify the optimal treatment control for a DSS colitis model as compared to literature data. In the second part, we tested the two most effective ST treatments in a refined model of chronic DSS colitis. Cyclosporine A (CsA) and 6-thioguanine (6-TG) caused considerable reduction of clinical scores in acute DSS colitis. The clinical outcome was confirmed by the results for colon length and by histopathological evaluation. Moreover, CsA and 6-TG considerably reduced mRNA expression of several pro-inflammatory cytokines in spleen and colon. Both compounds also showed a substantial therapeutic effect in the refined model of chronic DSS colitis with regard to clinical scores and histopathology as well as the expression of inflammatory markers. The refined model of chronic DSS colitis reflects important features of IBD and is well suited to test potential IBD therapeutics.
Collapse
Affiliation(s)
- Maximilian Hoffmann
- 1 Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany
| | - Ulla Schwertassek
- 1 Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany
| | - Aleksandra Seydel
- 1 Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany
| | | | - Werner Falk
- 3 Department of Internal Medicine I, University Hospital Regensburg, Regensburg, Germany
| | - Sunna Hauschildt
- 4 Faculty of Biological Sciences, Pharmacy, and Psychology, University of Leipzig, Leipzig, Germany
| | - Jörg Lehmann
- 1 Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany
| |
Collapse
|
39
|
Mamantopoulos M, Ronchi F, Van Hauwermeiren F, Vieira-Silva S, Yilmaz B, Martens L, Saeys Y, Drexler SK, Yazdi AS, Raes J, Lamkanfi M, McCoy KD, Wullaert A. Nlrp6- and ASC-Dependent Inflammasomes Do Not Shape the Commensal Gut Microbiota Composition. Immunity 2017; 47:339-348.e4. [PMID: 28801232 DOI: 10.1016/j.immuni.2017.07.011] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/27/2017] [Accepted: 07/18/2017] [Indexed: 01/16/2023]
Abstract
The gut microbiota regulate susceptibility to multiple human diseases. The Nlrp6-ASC inflammasome is widely regarded as a hallmark host innate immune axis that shapes the gut microbiota composition. This notion stems from studies reporting dysbiosis in mice lacking these inflammasome components when compared with non-littermate wild-type animals. Here, we describe microbial analyses in inflammasome-deficient mice while minimizing non-genetic confounders using littermate-controlled Nlrp6-deficient mice and ex-germ-free littermate-controlled ASC-deficient mice that were all allowed to shape their gut microbiota naturally after birth. Careful microbial phylogenetic analyses of these cohorts failed to reveal regulation of the gut microbiota composition by the Nlrp6- and ASC-dependent inflammasomes. Our results obtained in two geographically separated animal facilities dismiss a generalizable impact of Nlrp6- and ASC-dependent inflammasomes on the composition of the commensal gut microbiota and highlight the necessity for littermate-controlled experimental design in assessing the influence of host immunity on gut microbial ecology.
Collapse
Affiliation(s)
- Michail Mamantopoulos
- Department of Internal Medicine, Ghent University, Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Francesca Ronchi
- Maurice Müller Laboratories (DKF), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, University of Bern, Bern, Switzerland
| | - Filip Van Hauwermeiren
- Department of Internal Medicine, Ghent University, Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Sara Vieira-Silva
- Department of Microbiology and Immunology, KU Leuven, Rega Institute, Leuven, Belgium; VIB-KU Leuven Center for Microbiology, VIB, Leuven, Belgium
| | - Bahtiyar Yilmaz
- Maurice Müller Laboratories (DKF), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, University of Bern, Bern, Switzerland
| | - Liesbet Martens
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yvan Saeys
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium; Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | | | - Amir S Yazdi
- Department of Dermatology, University of Tübingen, Tübingen, Germany
| | - Jeroen Raes
- Department of Microbiology and Immunology, KU Leuven, Rega Institute, Leuven, Belgium; VIB-KU Leuven Center for Microbiology, VIB, Leuven, Belgium
| | - Mohamed Lamkanfi
- Department of Internal Medicine, Ghent University, Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Kathy D McCoy
- Maurice Müller Laboratories (DKF), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, University of Bern, Bern, Switzerland; Department of Physiology and Pharmacology and Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
| | - Andy Wullaert
- Department of Internal Medicine, Ghent University, Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium.
| |
Collapse
|
40
|
Becker F, Holthoff C, Anthoni C, Rijcken E, Alexander JS, Gavins FN, Spiegel HU, Senninger N, Vowinkel T. Downregulation of CX(3)CR1 ameliorates experimental colitis: evidence for CX(3)CL1-CX(3)CR1-mediated immune cell recruitment. Int J Colorectal Dis 2017; 32:315-24. [PMID: 27942903 DOI: 10.1007/s00384-016-2735-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/05/2016] [Indexed: 02/04/2023]
Abstract
PURPOSE Inflammatory conditions like inflammatory bowel diseases (IBD) are characterized by increased immune cell infiltration. The chemokine ligand CX3CL1 and its receptor CX3CR1 have been shown to be involved in leukocyte adhesion, transendothelial recruitment, and chemotaxis. Therefore, the objective of this study was to describe CX3CL1-CX3CR1-mediated signaling in the induction of immune cell recruitment during experimental murine colitis. METHODS Acute colitis was induced by dextran sodium sulfate (DSS), and sepsis was induced by injection of lipopolysaccharide (LPS). Serum concentrations of CX3CR1 and CX3CL1 were measured by ELISA. Wild-type and CX3CR1-/- mice were challenged with DSS, and on day 6, intravital microscopy was performed to monitor colonic leukocyte and platelet recruitment. Intestinal inflammation was assessed by disease activity, histopathology, and neutrophil infiltration. RESULTS CX3CR1 was upregulated in DSS colitis and LPS-induced sepsis. CX3CR1-/- mice were protected from disease severity and intestinal injury in DSS colitis, and CX3CR1 deficiency resulted in reduced rolling of leukocytes and platelets. CONCLUSIONS In the present study, we provide evidence for a crucial role of CX3CL1-CX3CR1 in experimental colitis, in particular for intestinal leukocyte recruitment during murine colitis. Our findings suggest that CX3CR1 blockade represents a potential therapeutic strategy for treatment of IBD.
Collapse
|
41
|
Simovic Markovic B, Nikolic A, Gazdic M, Bojic S, Vucicevic L, Kosic M, Mitrovic S, Milosavljevic M, Besra G, Trajkovic V, Arsenijevic N, Lukic ML, Volarevic V. Galectin-3 Plays an Important Pro-inflammatory Role in the Induction Phase of Acute Colitis by Promoting Activation of NLRP3 Inflammasome and Production of IL-1β in Macrophages. J Crohns Colitis 2016; 10:593-606. [PMID: 26786981 PMCID: PMC4957458 DOI: 10.1093/ecco-jcc/jjw013] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 12/26/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Galectin-3 [Gal-3] is an endogenous lectin with a broad spectrum of immunoregulatory effects: it plays an important role in autoimmune/inflammatory and malignant diseases, but the precise role of Gal-3 in pathogenesis of ulcerative colitis is still unknown. METHODS We used a model of dextran sulphate sodium [DSS]-induced acute colitis. The role of Gal-3 in pathogenesis of this disease was tested by evaluating disease development in Gal-3 deficient mice and administration of Gal-3 inhibitor. Disease was monitored by clinical, histological, histochemical, and immunophenotypic investigations. Adoptive transfer was used to detect cellular events in pathogenesis. RESULTS Genetic deletion or pharmacological inhibition of Gal-3 significantly attenuate DSS-induced colitis. Gal-3 deletion suppresses production of pro-inflammatory cytokines in colonic macrophages and favours their alternative activation, as well as significantly reducing activation of NOD-like receptor family, pyrin domain containing 3 [NLRP3] inflammasome in macrophages. Peritoneal macrophages isolated from untreated Gal-3(-/-) mice and treated in vitro with bacterial lipopolysaccharide or DSS produce lower amounts of tumour necrosis factor alpha [TNF-α] and interleukin beta [IL-1β] when compared with wild type [WT] cells. Genetic deletion of Gal-3 did not directly affect total neutrophils, inflammatory dendritic cells [DCs] or natural killer [NK] T cells. However, the total number of CD11c+ CD80+ DCs which produce pro-inflammatory cytokines, as well as TNF-α and IL-1β producing CD45+ CD11c- Ly6G+ neutrophils were significantly lower in colons of Gal-3(-/-) DSS-treated mice. Adoptive transfer of WT macrophages significantly enhanced the severity of disease in Gal-3(-/-) mice. CONCLUSIONS Gal-3 expression promotes acute DSS-induced colitis and plays an important pro-inflammatory role in the induction phase of colitis by promoting the activation of NLRP3 inflammasome and production of IL-1β in macrophages.
Collapse
Affiliation(s)
- Bojana Simovic Markovic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Aleksandar Nikolic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Marina Gazdic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Sanja Bojic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Ljubica Vucicevic
- Institute of Microbiology and Immunology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Kosic
- Institute of Microbiology and Immunology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Slobodanka Mitrovic
- Department of Pathology, Faculty of Medical Sciences, Clinical Center Kragujevac, Kragujevac, Serbia
| | - Milos Milosavljevic
- Department of Pathology, Faculty of Medical Sciences, Clinical Center Kragujevac, Kragujevac, Serbia
| | - Gurdyal Besra
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Birmingham, UK
| | - Vladimir Trajkovic
- Institute of Microbiology and Immunology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nebojsa Arsenijevic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Miodrag L. Lukic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Vladislav Volarevic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| |
Collapse
|
42
|
Abstract
There is a growing body of evidence that bilirubin, which is generated during the physiological breakdown of heme, exerts potent anti-inflammatory effects. Previous work by our group suggests that bilirubin is able to suppress inflammatory responses by preventing the migration of leukocytes into target tissues through disruption of vascular cell adhesion molecule-1 (VCAM-1)-dependent cell signaling. As VCAM-1 is an important mediator of tissue injury in the dextran sodium sulfate (DSS) murine model of inflammatory colitis, we examined whether bilirubin prevents colonic injury in DSS-treated mice. As anticipated, bilirubin-treated animals manifested significantly less colonic injury and reduced infiltration of inflammatory cells into colon tissues. We further observed that bilirubin administration was associated with a reduced number of eosinophils and monocytes in the small intestine, with a corresponding increase in peripheral blood eosinophilia, regardless of whether mice received DSS. These findings suggest that bilirubin impairs the normal migration of eosinophils into intestinal tissues, as supported by in vitro experiments showing that bilirubin blocks the VCAM-1-dependent movement of Jurkat cells across human endothelial cell monolayers. Taken together, our findings support that bilirubin ameliorates DSS-induced colitis and disrupts the physiological trafficking of leukocytes to the intestine by preventing transmigration across the vascular endothelium, potentially through the inhibition VCAM-1-mediated signaling. Our findings raise the possibility that bilirubin functions as an endogenous regulator of inflammatory responses.
Collapse
Affiliation(s)
- Megan E Vogel
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, 45267-0595, United States
| | - Stephen D Zucker
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, 45267-0595, United States
| |
Collapse
|
43
|
Zucker SD, Vogel ME, Kindel TL, Smith DLH, Idelman G, Avissar U, Kakarlapudi G, Masnovi ME. Bilirubin prevents acute DSS-induced colitis by inhibiting leukocyte infiltration and suppressing upregulation of inducible nitric oxide synthase. Am J Physiol Gastrointest Liver Physiol 2015; 309:G841-54. [PMID: 26381705 PMCID: PMC4652140 DOI: 10.1152/ajpgi.00149.2014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 08/21/2015] [Indexed: 01/31/2023]
Abstract
Bilirubin is thought to exert anti-inflammatory effects by inhibiting vascular cell adhesion molecule-1 (VCAM-1)-dependent leukocyte migration and by suppressing the expression of inducible nitric oxide synthase (iNOS). As VCAM-1 and iNOS are important mediators of tissue injury in the dextran sodium sulfate (DSS) murine model of inflammatory colitis, we examined whether bilirubin prevents colonic injury in DSS-treated mice. Male C57BL/6 mice were administered 2.5% DSS in the drinking water for 7 days, while simultaneously receiving intraperitoneal injections of bilirubin (30 mg/kg) or potassium phosphate vehicle. Disease activity was monitored, peripheral blood counts and serum nitrate levels were determined, and intestinal specimens were analyzed for histological injury, leukocyte infiltration, and iNOS expression. The effect of bilirubin on IL-5 production by HSB-2 cells and on Jurkat cell transendothelial migration also was determined. DSS-treated mice that simultaneously received bilirubin lost less body weight, had lower serum nitrate levels, and exhibited reduced disease severity than vehicle-treated animals. Concordantly, histopathological analyses revealed that bilirubin-treated mice manifested significantly less colonic injury, including reduced infiltration of eosinophils, lymphocytes, and monocytes, and diminished iNOS expression. Bilirubin administration also was associated with decreased eosinophil and monocyte infiltration into the small intestine, with a corresponding increase in peripheral blood eosinophilia. Bilirubin prevented Jurkat migration but did not alter IL-5 production. In conclusion, bilirubin prevents DSS-induced colitis by inhibiting the migration of leukocytes across the vascular endothelium and by suppressing iNOS expression.
Collapse
Affiliation(s)
- Stephen D. Zucker
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Megan E. Vogel
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Tammy L. Kindel
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Darcey L. H. Smith
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Gila Idelman
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Uri Avissar
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Ganesh Kakarlapudi
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | | |
Collapse
|
44
|
Barlow N, Nasser Y, Zhao P, Sharma N, Guerrero-Alba R, Edgington-Mitchell LE, Lieu T, Veldhuis NA, Poole DP, Conner JW, Lindström E, Craig AW, Graham B, Vanner SJ, Bunnett NW. Demonstration of elevated levels of active cathepsin S in dextran sulfate sodium colitis using a new activatable probe. Neurogastroenterol Motil 2015; 27:1675-80. [PMID: 26303377 DOI: 10.1111/nmo.12656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 07/17/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Proteases play a major role in inflammatory diseases of the gastrointestinal tract. Activatable probes are a major technological advance, enabling sensitive detection of active proteases in tissue samples. Our aim was to synthesize an activatable probe for cathepsin S and validate its use in a mouse model of colitis. METHODS We designed and synthesized a new fluorescent activatable probe, NB200, for the detection of active cathepsin S. Colitis was induced in C57BL/6 mice by the administration of 3% dextran sulfate sodium (DSS). Homogenized mouse colons, with or without the addition of the specific cathepsin S inhibitor MV026031, were incubated with NB200 in a fluorescent plate reader. KEY RESULTS NB200 selectively detected purified cathepsin S and not other common inflammatory proteases. Homogenates of colon from mice with DSS colitis induced a significant fluorescent increase when compared to control animals (control vs DSS: p < 0.05 at 200 min and p < 0.01 at 220-240 min), indicating cathepsin S activation. The cathepsin S inhibitor abolished this increase in fluorescence (DSS vs DSS + MV026031: p < 0.05 at 140 min, p < 0.01 at 180 min, p < 0.001 at 200-240 min), which confirms cathepsin S activation. Cathepsin S activity correlated with the disease activity index (Spearman r = 0.77, p = 0.017). CONCLUSIONS & INFERENCES Our investigation has demonstrated the utility of activatable probes for detecting protease activity in intestinal inflammation. Panels of such probes may allow 'signature' protease profiles to be established for a range of inflammatory diseases and disorders.
Collapse
Affiliation(s)
- N Barlow
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| | - Y Nasser
- Gastrointestinal Diseases Research Unit, Division of Gastroenterology, Queen's University, Kingston, ON, Canada
| | - P Zhao
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| | - N Sharma
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - R Guerrero-Alba
- Gastrointestinal Diseases Research Unit, Division of Gastroenterology, Queen's University, Kingston, ON, Canada
| | - L E Edgington-Mitchell
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| | - T Lieu
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| | - N A Veldhuis
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| | - D P Poole
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia.,Department of Anatomy and Neuroscience, University of Melbourne, Parkville, Vic., Australia
| | - J W Conner
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| | | | - A W Craig
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - B Graham
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| | - S J Vanner
- Gastrointestinal Diseases Research Unit, Division of Gastroenterology, Queen's University, Kingston, ON, Canada
| | - N W Bunnett
- Monash Institute of Pharmaceutical Sciences Parkville Australia, Parkville, Vic., Australia
| |
Collapse
|
45
|
Khatri V, Amdare N, Tarnekar A, Goswami K, Reddy MVR. Brugia malayi cystatin therapeutically ameliorates dextran sulfate sodium-induced colitis in mice. J Dig Dis 2015; 16:585-94. [PMID: 26358507 DOI: 10.1111/1751-2980.12290] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 08/25/2015] [Accepted: 09/09/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Helminth immunomodulation in the host has been shown to have therapeutic implications in inflammatory bowel diseases. In this study we aimed to evaluate the therapeutic effect of Brugia malayi recombinant cystatin (rBmCys) in a dose-dependent manner on dextran sulfate sodium (DSS)-induced colitis in mice. METHODS The anti-inflammatory activity of rBmCys on mice peritoneal exudate cells was initially analyzed in vitro. BALB/c mice were fed with 5% DSS for 7 days to induce colitis. The colitis mice were treated intraperitoneally with rBmCys (10, 25 or 50 µg for the three different groups of mice) on days 1, 3 and 5 of the DSS administration. Disease severity was assessed by the disease activity index (DAI) and macroscopic and histopathological scores of colon and myeloperoxidase activity in colonic mucosa. Cytokine profiles were measured in sera and cultured splenocytes of treated mice followed by stimulation with rBmCys. RESULTS rBmCys showed anti-inflammatory activity in vitro. Treatment of DSS-induced colitis with rBmCys in mice ameliorated the overall disease severity as reflected by a significant reduction in weight loss, the DAI, mucosal edema, colon damage and myeloperoxidase activity of the colonic mucosa. While the mRNA expressions of IFN-γ, TNF-α, interleukin (IL)-5, IL-6 and IL-17 were downregulated, IL-10 expression was upregulated in the splenocytes of colitis mice treated with rBmCys. The amelioration of DSS-induced colitis occurred in a dose-dependent manner. CONCLUSION The results of this study indicate an anti-inflammatory potential of rBmCys and provide evidence for using this protein as a promising therapeutic agent in ulcerative colitis.
Collapse
Affiliation(s)
- Vishal Khatri
- Department of Biochemistry & JB Tropical Disease Research Center, Mahatma Gandhi Institute of Medical Sciences, Maharashtra, India
| | - Nitin Amdare
- Department of Biochemistry & JB Tropical Disease Research Center, Mahatma Gandhi Institute of Medical Sciences, Maharashtra, India
| | - Aaditya Tarnekar
- Department of Anatomy, Mahatma Gandhi Institute of Medical Sciences, Maharashtra, India
| | - Kalyan Goswami
- Department of Biochemistry & JB Tropical Disease Research Center, Mahatma Gandhi Institute of Medical Sciences, Maharashtra, India
| | - Maryada Venkata Rami Reddy
- Department of Biochemistry & JB Tropical Disease Research Center, Mahatma Gandhi Institute of Medical Sciences, Maharashtra, India
| |
Collapse
|
46
|
Jiang X, Yu J, Shi Q, Xiao Y, Wang W, Chen G, Zhao Z, Wang R, Xiao H, Hou C, Feng J, Ma Y, Shen B, Wang L, Li Y, Han G. Tim-3 promotes intestinal homeostasis in DSS colitis by inhibiting M1 polarization of macrophages. Clin Immunol 2015. [PMID: 26208474 DOI: 10.1016/j.clim.2015.07.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Tim-3 is involved in the physiopathology of inflammatory bowel disease (IBD), but the underlying mechanism is unknown. Here, we demonstrated that, in mouse with DSS colitis, Tim-3 inhibited the polarization of pathogenic pro-inflammatory M1 macrophages, while Tim-3 downregulation or blockade resulted in an increased M1 response. Adoptive transfer of Tim-3-silenced macrophages worsened DSS colitis and enhanced inflammation, while Tim-3 overexpression attenuated DSS colitis by decreasing the M1 macrophage response. Co-culture of Tim-3-overexpressing macrophages with intestinal lymphocytes decreased the pro-inflammatory response. Tim-3 shaped intestinal macrophage polarization may be TLR-4 dependent since Tim-3 blockade failed to exacerbate colitis or increase M1 macrophage response in the TLR-4 KO model. Finally, Tim-3 signaling inhibited phosphorylation of IRF3, a TLR-4 downstream transcriptional factor regulating macrophage polarization. A better understanding of this pathway may shed new light on colitis pathogenesis and result in a new therapeutic strategy.
Collapse
Affiliation(s)
- Xingwei Jiang
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China; State Key laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China; Beijing Institute of Transfusion Medicine, Beijing 100850, China
| | - Jiahui Yu
- Institute of Immunology, Medical School of Henan University, Kaifeng 475001, China
| | - Qingzhu Shi
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Yan Xiao
- Department of Respiratory Diseases, First Affiliated Hospital of the Chinese PLA General Hospital, Beijing 100037, China
| | - Wei Wang
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China; Institute of Immunology, Medical School of Henan University, Kaifeng 475001, China
| | - Guojiang Chen
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China.
| | - Zhi Zhao
- Department of Pathology, Zhengzhou People's Hospital, YIHE Hospital, Zhengzhou 450000, China
| | - Renxi Wang
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - He Xiao
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Chunmei Hou
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Jiannan Feng
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Yuanfang Ma
- Institute of Immunology, Medical School of Henan University, Kaifeng 475001, China
| | - Beifen Shen
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Lili Wang
- State Key laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China
| | - Yan Li
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Gencheng Han
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China.
| |
Collapse
|
47
|
Simeoli R, Mattace Raso G, Lama A, Pirozzi C, Santoro A, Di Guida F, Sanges M, Aksoy E, Calignano A, D'Arienzo A, Meli R. Preventive and therapeutic effects of Lactobacillus paracasei B21060-based synbiotic treatment on gut inflammation and barrier integrity in colitic mice. J Nutr 2015; 145:1202-10. [PMID: 25926411 DOI: 10.3945/jn.114.205989] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 03/23/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Although gut microbiota perturbation is recognized as a main contributing factor to the pathogenesis of inflammatory bowel disease, synbiotic therapies, as prevention or treatment, have remained overlooked. OBJECTIVE To verify whether Lactobacillus paracasei B21060-based synbiotic therapy could prevent or repair colon damage in a mouse model of colitis, we performed treatments before and after colitis induction. METHODS The experimental study lasted 19 d. Experimental colitis was induced in BALB/c mice by giving them dextran sodium sulfate (DSS, 2.5%) in drinking water (days 7-12) followed by DSS-free water (days 13-19) (DSS group). L. paracasei B21060 (2.5 × 10(7) bacteria/10 g body weight) was orally administered 7 d before DSS [synbiotic as preventive treatment (P-SYN) group] or 2 d after DSS [synbiotic as therapeutic treatment (T-SYN) group] until day 19. Another group was not treated with DSS or synbiotic and was given tap water (control group), for a total of 4 groups. RESULTS Compared with the DSS group, both synbiotic-treated groups had significantly less pronounced weight loss and colon damage. Consistently, mRNA levels of chemokine (C-C motif) ligand 5 in the colon were reduced in both P-SYN and T-SYN mice compared with the DSS group (51%, P < 0.05 and 72%, P < 0.001, respectively). In the P-SYN and T-SYN groups, neutrophil elastase transcription was also reduced (51%, P < 0.01 and 59%, P < 0.001, respectively). Accordingly, oxidative/nitrosative stress was lower in P-SYN and T-SYN mice than in the DSS group. In P-SYN and T-SYN mice, colonic gene expression of tumor necrosis factor (47%, P < 0.01 and 61%, P < 0.001, respectively) and prostaglandin-endoperoxide synthase 2 (45%, P < 0.01 and 35%, P < 0.05, respectively) was lower, whereas interleukin 10 mRNA was doubled compared with the DSS group (both P < 0.5). Remarkably, epithelial barrier integrity (zonulin and occludin) and gut protection (β-defensin and mucin expression) were completely restored in P-SYN and T-SYN mice. CONCLUSIONS Our data highlight the beneficial effects of this synbiotic formulation in acutely colitic mice, suggesting that it may have therapeutic and possibly preventive efficacy in human colitis.
Collapse
Affiliation(s)
- Raffaele Simeoli
- Department of Pharmacy and Centre for Biochemical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | | | | | | | | | | | - Marco Sanges
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy; and
| | - Ezra Aksoy
- Centre for Biochemical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | | | - Agesilao D'Arienzo
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy; and
| | | |
Collapse
|
48
|
Leonardi I, Nicholls F, Atrott K, Cee A, Tewes B, Greinwald R, Rogler G, Frey-Wagner I. Oral administration of dextran sodium sulphate induces a caecum-localized colitis in rabbits. Int J Exp Pathol 2015; 96:151-62. [PMID: 25716348 DOI: 10.1111/iep.12117] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 12/09/2014] [Indexed: 12/23/2022] Open
Abstract
Trichuris suis ova (TSO) have shown promising results in the treatment of inflammatory bowel disease (IBD) but the mechanisms which underlies this therapeutic effect cannot be studied in mice and rats as T. suis fails to colonize the rodent intestine, whilst hatching in humans and rabbits. As a suitable rabbit IBD model is currently not available, we developed a rabbit colitis model by administration of dextran sodium sulphate (DSS). White Himalayan rabbits (n = 12) received 0.1% DSS in the daily water supply for five days. Clinical symptoms were monitored daily, and rabbits were sacrificed at different time points. A genomewide expression analysis was performed with RNA isolated from caecal lamina propria mononuclear cells (LPMC) and intestinal epithelial cells (IEC). The disease activity index of DSS rabbits increased up to 2.1 ± 0.4 (n = 6) at day 10 (controls <0.5). DSS induced a caecum-localized pathology with crypt architectural distortion, stunted villous surface and inflammatory infiltrate in the lamina propria. The histopathology score reached a peak of 14.2 ± 4.9 (n = 4) at day 10 (controls 7.7 ± 0.9, n = 5). Expression profiling revealed an enrichment of IBD-related genes in both LPMC and IEC. Innate inflammatory response, Th17 signalling and chemotaxis were among the pathways affected significantly. We describe a reproducible and reliable rabbit model of DSS colitis. Localization of the inflammation in the caecum and its similarities to IBD make this model particularly suitable to study TSO therapy in vivo.
Collapse
Affiliation(s)
- Irina Leonardi
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Flora Nicholls
- Central Biological Laboratory, University Hospital Zurich, Zurich, Switzerland
| | - Kirstin Atrott
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Alexandra Cee
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Bernhard Tewes
- Research and Development, Dr. Falk Pharma GmbH, Freiburg, Germany
| | - Roland Greinwald
- Research and Development, Dr. Falk Pharma GmbH, Freiburg, Germany
| | - Gerhard Rogler
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Isabelle Frey-Wagner
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| |
Collapse
|
49
|
Ranganathan P, Jayakumar C, Li DY, Ramesh G. UNC5B receptor deletion exacerbates DSS-induced colitis in mice by increasing epithelial cell apoptosis. J Cell Mol Med 2014; 18:1290-9. [PMID: 24720832 PMCID: PMC4117732 DOI: 10.1111/jcmm.12280] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 02/12/2014] [Indexed: 12/21/2022] Open
Abstract
The netrin-1 administration or overexpression is known to protect colon from acute colitis. However, the receptor that mediates netrin-1 protective activities in the colon during colitis remains unknown. We tested the hypothesis that UNC5B receptor is a critical mediator of protective function of netrin-1 in dextran sodium sulfate (DSS)-induced colitis using mice with partial deletion of UNC5B receptor. DSS colitis was performed in mice with partial genetic UNC5B deficiency (UNC5B+/− mice) or wild-type mice to examine the role of endogenous UNC5B. These studies were supported by in vitro models of DSS-induced apoptosis in human colon epithelial cells. WT mice developed colitis in response to DSS feeding as indicated by reduction in bw, reduction in colon length and increase in colon weight. These changes were exacerbated in heterozygous UNC5B knockout mice treated with DSS. Periodic Acid-Schiff stained section shows damages in colon epithelium and mononuclear cell infiltration in WT mice, which was further increased in UNC5B heterozygous knockout mice. This was associated with large increase in inflammatory mediators such as cytokine and chemokine expression and extensive apoptosis of epithelial cells in heterozygous knockout mice as compared to WT mice. Overexpression of UNC5B human colon epithelial cells suppressed DSS-induced apoptosis and caspase-3 activity. Moreover, DSS induced large amount of netrin-1 and shRNA mediated knockdown of netrin-1 induction exacerbated DSS-induced epithelial cell apoptosis. Our results suggest that UNC5B is a critical mediator of cell survival in response to stress in colon.
Collapse
|