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Majeed S, Hamad SK, Shah BR, Bielke L, Nazmi A. Natural intraepithelial lymphocyte populations rise during necrotic enteritis in chickens. Front Immunol 2024; 15:1354701. [PMID: 38455042 PMCID: PMC10917894 DOI: 10.3389/fimmu.2024.1354701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/06/2024] [Indexed: 03/09/2024] Open
Abstract
Intraepithelial lymphocytes (IEL) reside in the epithelium at the interface between the contents of the intestinal lumen and the sterile environment of the lamina propria. Because of this strategic location, IEL play a crucial role in various immunological processes, ranging from pathogen control to tissue stability. In mice and humans, IEL exhibit high diversity, categorized into induced IEL (conventional CD4 and CD8αβ T cells) and natural IEL (TCRαβCD8αα, TCRγδ, and TCRneg IEL). In chickens, however, the subpopulations of IEL and their functions in enteric diseases remain unclear. Thus, we conducted this study to investigate the role of IEL populations during necrotic enteritis (NE) in chickens. At 14 days of age, sixty-three Specific-pathogen-free (SPF) birds were randomly assigned to three treatments: Control (sham challenge), Eimeria maxima challenge (EM), and Eimeria maxima + Clostridium Perfringens (C. Perfringens) co-challenge (EM/CP). The EM and EM/CP birds were infected with Eimeria maxima at day 14 of age, and EM/CP birds were additionally orally inoculated with C. perfringens at days 18 and 19 of age. Birds were weighed at days 18, 20, and 26 of age to assess body weight gain (BWG). At 20 days of age (1 day-post C. perfringens infection; dpi), and 26 days of age (7 dpi), 7 birds per treatment were euthanized, and jejunum was harvested for gross lesion scores, IEL isolation, and gene expression. The EM/CP birds exhibited subclinical NE disease, lower BWG and shorter colon length. The Most changes in the IEL populations were observed at 1 dpi. The EM/CP group showed substantial increases in the total number of natural IEL subsets, including TCRαβ+CD4-CD8-, TCRαβ+CD8αα+, TCRγδ+, TCRneg and innate CD8α (iCD8α) cells by at least two-fold. However, by 7 dpi, only the number of TCRαβ+CD4-CD8- and TCRαβ+CD8αα+ IEL maintained their increase in the EM/CP group. The EM/CP group had significantly higher expression of proinflammatory cytokines (IL-1β and IFN-γ) and Osteopontin (OPN) in the jejunum at 1 dpi. These findings suggest that natural IEL with innate and innate-like functions might play a critical role in the host response during subclinical NE, potentially conferring protection against C. perfringens infection.
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Affiliation(s)
- Shuja Majeed
- Department of Animal Sciences, College of Food Agriculture and Environmental Sciences, The Ohio State University, Wooster, OH, United States
| | - Shaimaa K. Hamad
- Department of Animal Sciences, College of Food Agriculture and Environmental Sciences, The Ohio State University, Wooster, OH, United States
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Bikas R. Shah
- Department of Animal Sciences, College of Food Agriculture and Environmental Sciences, The Ohio State University, Wooster, OH, United States
| | - Lisa Bielke
- Prestage Department of Poultry Science, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, United States
| | - Ali Nazmi
- Department of Animal Sciences, College of Food Agriculture and Environmental Sciences, The Ohio State University, Wooster, OH, United States
- Food For Health Discovery Theme, The Ohio State University, Columbus, OH, United States
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Yang TT, Chiang MF, Chang CC, Yang SY, Huang SW, Liao NS, Shih HM, Hsu W, Lin KI. SENP2 restrains the generation of pathogenic Th17 cells in mouse models of colitis. Commun Biol 2023; 6:629. [PMID: 37301920 PMCID: PMC10257679 DOI: 10.1038/s42003-023-05009-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
The molecular mechanisms contributing to the regulation of Th17-mediated inflammation remain underexplored. We here report a SUMO-specific protease (SENP)2-mediated pathway induced in pathogenic Th17 cells that restricts the pathogenesis of inflammatory colitis. SENP2 regulates the maturation of small ubiquitin-like modifiers (SUMO) and recycles SUMO from the substrate proteins. We find higher levels of SENP2 in pathogenic Th17 cells. By deleting Senp2 in T-cell lineages in mice, we demonstrate that the lack of Senp2 exacerbates the severity of experimental colitis, which is linked to elevated levels of GM-CSF+IL-17A+ pathogenic Th17 cells and more severe dysbiosis of the intestinal microbiome. Adoptive transfer experiments demonstrate the cell-autonomous effect of Senp2 in restraining Th17 differentiation and colitis. The enzymatic activity of SENP2 is important for deSUMOylation of Smad4, which reduces Smad4 nuclear entry and Rorc expression. Our findings reveal a SENP2-mediated regulatory axis in the pathogenicity of Th17 cells.
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Affiliation(s)
- Tsan-Tzu Yang
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, 10002, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Ming-Feng Chiang
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Shii-Yi Yang
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Shih-Wen Huang
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Nan-Shih Liao
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Wei Hsu
- Forsyth Institute, Harvard School of Dental Medicine, Harvard Stem Cell Institute, Harvard University, Cambridge, MA, 02142, USA
| | - Kuo-I Lin
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, 10002, Taiwan.
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan.
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Couto MR, Andrade N, Magro F, Martel F. Bile salts and proinflammatory cytokines inhibit MCT1-mediated cellular uptake of butyrate and interfere with its antiproliferative properties. Exp Cell Res 2023; 429:113670. [PMID: 37290498 DOI: 10.1016/j.yexcr.2023.113670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/10/2023]
Abstract
Butyrate (BT) is important in the prevention and inhibition of colorectal cancer (CRC). Inflammatory bowel disease, a risk factor for CRC, is associated with higher levels of proinflammatory cytokines and bile acids. The aim of this work was to investigate the interaction of these compounds in inhibiting BT uptake by Caco-2 cells, as a mechanism contributing to the link between IBD and CRC. TNF-α, IFN-γ, chenodeoxycholic acid (CDCA) and deoxycholic acid (DCA) markedly reduce 14C-BT uptake. All these compounds appear to inhibit MCT1-mediated BT cellular uptake at a posttranscriptional level, and, because their effect is not additive, they are most probably inhibiting MCT1 by a similar mechanism. Correspondingly, the antiproliferative effect of BT (MCT1-dependent) and of the proinflammatory cytokines and CDCA were not additive. In contrast, the cytotoxic effect of BT (MCT1-independent) and of the proinflammatory cytokines and CDCA were additive. In conclusion, proinflammatory cytokines (TNF-α and IFN-γ) and bile acids (DCA and CDCA) inhibit MCT1-mediated BT cellular uptake. These proinflammatory cytokines and CDCA were found to interfere with the antiproliferative effect of BT, mediated by an inhibitory effect upon MCT1-mediated cellular uptake of BT.
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Affiliation(s)
- Mafalda R Couto
- Unit of Biochemistry, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal; Instituto de Investigação e Inovação Em Saúde (i3S), University of Porto, Porto, Portugal
| | - Nelson Andrade
- Unit of Biochemistry, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal; REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Portugal; Instituto de Investigação e Inovação Em Saúde (i3S), University of Porto, Porto, Portugal
| | - Fernando Magro
- Unit of Pharmacology and Therapeutics, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal; Instituto de Investigação e Inovação Em Saúde (i3S), University of Porto, Porto, Portugal
| | - Fátima Martel
- Unit of Biochemistry, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal; Gastroenterology Unit, Department of Medicine, Centro Hospitalar S. João, Porto, Portugal; Instituto de Investigação e Inovação Em Saúde (i3S), University of Porto, Porto, Portugal.
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Ren W, Zhang C, Wang X, Wang J. Investigating associations between urinary phthalate metabolite concentrations and chronic diarrhea: findings from the National Health and Nutrition Examination Survey, 2005-2010. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:77625-77634. [PMID: 35680746 DOI: 10.1007/s11356-022-21123-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
This study aimed to explore the relationship between chronic diarrhea and urinary phthalate metabolite concentrations in US adults from the 2005-2010 NHANES study. After adjusting for potential confounding factors, logistic regression was used to explore the relationship between phthalates (PAEs) concentrations and chronic diarrhea, Bayesian kernel machine regression (BKMR), and quantile g calculation (quantile-based g calculation, qgcomp) which was used to study the combined and independent effects of PAEs on gastrointestinal infections. In the current study, 4260 adult participants over the age of 20 from the NHANES study were included, of whom 542 (12.72%) were assessed as having chronic diarrhea. In multivariate logistic regression analysis, after adjusting for all relevant covariates, the results showed that urinary phthalate metabolite concentrations were significantly associated with the risk of chronic diarrhea (P<0.001). Various PAEs were risk factors for chronic diarrhea, among which MiBP (OR=1.419, 95% CI: 1.416-1.423) and MCPP (OR=1.237, 95% CI: 1.235-1.239) were more significant. The BKME results showed a significant increase in the risk of chronic diarrhea with increasing total levels of the PAEs mixture. Mixed exposure to PAEs can promote the occurrence of chronic diarrhea, and the effect was more pronounced in obese people. Notably, most PAEs showed some degree of protection in overweight people. The risk effect of PAEs was more significant in the middle-aged and older population than in the younger population.
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Affiliation(s)
- Weirui Ren
- Department of Gastroenterology, The Third Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Chuang Zhang
- Department of Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Xiaoya Wang
- Undergraduate of Jitang College, The North China University of Science and Technology, Tangshan, China
| | - Junmin Wang
- Department of Gastroenterology, The Third Hospital of Hebei Medical University, Shijiazhuang, 050000, China.
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Bandyopadhyay C, Schecterson L, Gumbiner BM. E-cadherin activating antibodies limit barrier dysfunction and inflammation in mouse inflammatory bowel disease. Tissue Barriers 2021; 9:1940741. [PMID: 34402758 PMCID: PMC8794503 DOI: 10.1080/21688370.2021.1940741] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/28/2021] [Accepted: 06/04/2021] [Indexed: 01/21/2023] Open
Abstract
Deficits in gastrointestinal (GI) paracellular permeability has been implicated in etiology of Inflammatory Bowel Disease (IBD), and E-cadherin, a key component of the epithelial junctional complex, has been implicated in both barrier function and IBD. We have previously described antibodies against E-cadherin that activate cell adhesion, and in this study, we show that they increase transepithelial electrical resistance in epithelial cell monolayers in vitro. We therefore tested the hypothesis that adhesion activating E-cadherin mAbs will enhance epithelial barrier function in vivo and limit progression of inflammation in IBD. Activating mAbs to mouse E-cadherin were tested in different mouse models of IBD including the IL10-/- and adoptive T cell transfer models of colitis. Previously established histological and biomarker measures of inflammation were evaluated to monitor disease progression. Mouse E-cadherin activating mAb treatment reduced total colitis score, individual histological measures of inflammation, and other hallmarks of inflammation compared to control treatment. Activating mAbs also reduced the fecal accumulation lipocalin2 and albumin content, consistent with enhanced barrier function. Therefore, E-cadherin activation could be a potential strategy for limiting inflammation in UC.
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Affiliation(s)
- Chirosree Bandyopadhyay
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute, Seattle, Washington, United States
| | - Leslayann Schecterson
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute, Seattle, Washington, United States
| | - Barry M Gumbiner
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute, Seattle, Washington, United States
- Department of Pediatrics, University of Washington, Seattle, United States
- Department of Biochemistry, University of Washington, Seattle, United States
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Rahman MM, Afroz S, Arthur S, Sundaram U. Mast Cell Mediated Regulation of Small Intestinal Chloride Malabsorption in SAMP1/YitFc Mouse Model of Spontaneous Chronic Ileitis. Cells 2021; 10:cells10030697. [PMID: 33801010 PMCID: PMC8004028 DOI: 10.3390/cells10030697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 12/19/2022] Open
Abstract
In Inflammatory Bowel Disease (IBD), malabsorption of electrolytes (NaCl) results in diarrhea. Inhibition of coupled NaCl absorption, mediated by the dual operation of Na:H and Cl:HCO3 exchangers on the brush border membrane (BBM) of the intestinal villus cells has been reported in IBD. In the SAMP1/YitFcs (SAMP1) mice model of spontaneous ileitis, representing Crohn’s disease, DRA (Downregulated in Adenoma) mediated Cl:HCO3 exchange was shown to be inhibited secondary to diminished affinity of the exchanger for Cl. However, NHE3 mediated Na:H exchange remained unaffected. Mast cells and their secreted mediators are known to be increased in the IBD mucosa and can affect intestinal electrolyte absorption. However, how mast cell mediators may regulate Cl:HCO3 exchange in SAMP1 mice is unknown. Therefore, the aim of this study was to determine the effect of mast cell mediators on the downregulation of DRA in SAMP1 mice. Mast cell numbers and their degranulation marker enzyme (β-hexosaminidase) levels were significantly increased in SAMP1 mice compared to control AKR mice. However, treatment of SAMP1 mice with a mast cell stabilizer, ketotifen, restored the β-hexosaminidase enzyme levels to normal in the intestine, demonstrating stabilization of mast cells by ketotifen. Moreover, downregulation of Cl:HCO3 exchange activity was restored in ketotifen treated SAMP1 mice. Kinetic studies showed that ketotifen restored the altered affinity of Cl:HCO3 exchange in SAMP1 mice villus cells thus reinstating its activity to normal. Further, RT-qPCR, Western blot and immunofluorescence studies showed that the expression levels of DRA mRNA and BBM protein, respectively remained unaltered in all experimental conditions, supporting the kinetic data. Thus, inhibition of Cl:HCO3 exchange resulting in chloride malabsorption leading to diarrhea in IBD is likely mediated by mast cell mediators.
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Couto MR, Gonçalves P, Magro F, Martel F. Microbiota-derived butyrate regulates intestinal inflammation: Focus on inflammatory bowel disease. Pharmacol Res 2020; 159:104947. [DOI: 10.1016/j.phrs.2020.104947] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/04/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022]
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DRAwing Conclusions About the Basis of Diarrhea in Inflammatory Bowel Disease. Dig Dis Sci 2020; 65:1581-1583. [PMID: 31950312 DOI: 10.1007/s10620-020-06060-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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