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Banerjee P, Senapati S. Translational Utility of Organoid Models for Biomedical Research on Gastrointestinal Diseases. Stem Cell Rev Rep 2024:10.1007/s12015-024-10733-3. [PMID: 38758462 DOI: 10.1007/s12015-024-10733-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2024] [Indexed: 05/18/2024]
Abstract
Organoid models have recently been utilized to study 3D human-derived tissue systems to uncover tissue architecture and adult stem cell biology. Patient-derived organoids unambiguously provide the most suitable in vitro system to study disease biology with the actual genetic background. With the advent of much improved and innovative approaches, patient-derived organoids can potentially be used in regenerative medicine. Various human tissues were explored to develop organoids due to their multifold advantage over the conventional in vitro cell line culture approach and in vivo models. Gastrointestinal (GI) tissues have been widely studied to establish organoids and organ-on-chip for screening drugs, nutraceuticals, and other small molecules having therapeutic potential. The function of channel proteins, transporters, and transmembrane proteins was also explained. The successful application of genome editing in organoids using the CRISPR-Cas approach has been reported recently. GI diseases such as Celiac disease (CeD), Inflammatory bowel disease (IBD), and common GI cancers have been investigated using several patient-derived organoid models. Recent advancements on organoid bio-banking and 3D bio-printing contributed significantly in personalized disease management and therapeutics. This article reviews the available literature on investigations and translational applications of patient-derived GI organoid models, notably on elucidating gut-microbial interaction and epigenetic modifications.
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Affiliation(s)
- Pratibha Banerjee
- Immunogenomics Laboratory, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, India
| | - Sabyasachi Senapati
- Immunogenomics Laboratory, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, India.
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2
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Kim DH, Lee S, Ahn J, Kim JH, Lee E, Lee I, Byun S. Transcriptomic and metabolomic analysis unveils nanoplastic-induced gut barrier dysfunction via STAT1/6 and ERK pathways. ENVIRONMENTAL RESEARCH 2024; 249:118437. [PMID: 38346486 DOI: 10.1016/j.envres.2024.118437] [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: 11/27/2023] [Revised: 01/18/2024] [Accepted: 02/05/2024] [Indexed: 02/18/2024]
Abstract
The widespread prevalence of micro and nanoplastics in the environment raises concerns about their potential impact on human health. Recent evidence demonstrates the presence of nanoplastics in human blood and tissues following ingestion and inhalation, yet the specific risks and mechanisms of nanoplastic toxicity remain inadequately understood. In this study, we aimed to explore the molecular mechanisms underlying the toxicity of nanoplastics at both systemic and molecular levels by analyzing the transcriptomic/metabolomic responses and signaling pathways in the intestines of mice after oral administration of nanoplastics. Transcriptome analysis in nanoplastic-administered mice revealed a notable upregulation of genes involved in pro-inflammatory immune responses. In addition, nanoplastics substantially reduced the expression of tight junction proteins, including occludin, zonula occluden-1, and tricellulin, which are crucial for maintaining gut barrier integrity and function. Importantly, nanoplastic administration increased gut permeability and exacerbated dextran sulfate sodium-induced colitis. Further investigation into the underlying molecular mechanisms highlighted significant activation of signaling transsducer and activator of transcription (STAT)1 and STAT6 by nanoplastic administration, which was in line with the elevation of interferon and JAK-STAT pathway signatures identified through transcriptome enrichment analysis. Additionally, the consumption of nanoplastics specifically induced nuclear factor kappa-B (NF-κB) and extracellular signal-regulated kinase (ERK)1/2 signaling pathways in the intestines. Collectively, this study identifies molecular mechanisms contributing to adverse effects mediated by nanoplastics in the intestine, providing novel insights into the pathophysiological consequences of nanoplastic exposure.
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Affiliation(s)
- Da Hyun Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sungho Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jisong Ahn
- Research Group of Traditional Food, Korea Food Research Institute, Wanju, 55365, Republic of Korea; Department of Food Science and Technology, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Jae Hwan Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Eunjung Lee
- Research Group of Traditional Food, Korea Food Research Institute, Wanju, 55365, Republic of Korea; Department of Food Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea.
| | - Insuk Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea; POSTECH Biotech Center, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| | - Sanguine Byun
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea; POSTECH Biotech Center, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
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3
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Akinsuyi OS, Xhumari J, Ojeda A, Roesch LFW. Gut permeability among Astronauts during Space missions. LIFE SCIENCES IN SPACE RESEARCH 2024; 41:171-180. [PMID: 38670644 DOI: 10.1016/j.lssr.2024.03.003] [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: 09/11/2023] [Revised: 02/02/2024] [Accepted: 03/13/2024] [Indexed: 04/28/2024]
Abstract
The space environment poses substantial challenges to human physiology, including potential disruptions in gastrointestinal health. Gut permeability has only recently become widely acknowledged for its potential to cause adverse effects on a systemic level, rendering it a critical factor to investigate in the context of spaceflight. Here, we propose that astronauts experience the onset of leaky gut during space missions supported by transcriptomic and metagenomic analysis of human and murine samples. A genetic map contributing to intestinal permeability was constructed from a systematic review of current literature. This was referenced against our re-analysis of three independent transcriptomic datasets which revealed significant changes in gene expression patterns associated with the gut barrier. Specifically, in astronauts during flight, we observed a substantial reduction in the expression genes that are crucial for intestinal barrier function, goblet cell development, gut microbiota modulation, and immune responses. Among rodent spaceflight studies, differential expression of cytokines, chemokines, and genes which regulate mucin production and post-translational modifications suggest a similar dysfunction of intestinal permeability. Metagenomic analysis of feces from two murine studies revealed a notable reduction probiotic, short chain fatty acid-producing bacteria and an increase in the Gram-negative pathogens, including Citrobacter rodentium, Enterobacter cloacea, Klebsiella aerogenes, and Proteus hauseri which promote LPS circulation, a recipe for barrier disruption and systemic inflammatory activation. These findings emphasize the critical need to understand the underlying mechanisms and develop interventions to maintain gastrointestinal health in space.
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Affiliation(s)
- Oluwamayowa S Akinsuyi
- Institute of Food and Agricultural Sciences, Department of Microbiology and Cell Science, University of Florida, Gainesville 32611, FL, USA
| | - Jessica Xhumari
- Institute of Food and Agricultural Sciences, Department of Microbiology and Cell Science, University of Florida, Gainesville 32611, FL, USA
| | - Amanda Ojeda
- Institute of Food and Agricultural Sciences, Department of Microbiology and Cell Science, University of Florida, Gainesville 32611, FL, USA
| | - Luiz F W Roesch
- Institute of Food and Agricultural Sciences, Department of Microbiology and Cell Science, University of Florida, Gainesville 32611, FL, USA.
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4
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Amormino C, Russo E, Tedeschi V, Fiorillo MT, Paiardini A, Spallotta F, Rosanò L, Tuosto L, Kunkl M. Targeting staphylococcal enterotoxin B binding to CD28 as a new strategy for dampening superantigen-mediated intestinal epithelial barrier dysfunctions. Front Immunol 2024; 15:1365074. [PMID: 38510259 PMCID: PMC10951378 DOI: 10.3389/fimmu.2024.1365074] [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: 01/03/2024] [Accepted: 02/26/2024] [Indexed: 03/22/2024] Open
Abstract
Staphylococcus aureus is a gram-positive bacterium that may cause intestinal inflammation by secreting enterotoxins, which commonly cause food-poisoning and gastrointestinal injuries. Staphylococcal enterotoxin B (SEB) acts as a superantigen (SAg) by binding in a bivalent manner the T-cell receptor (TCR) and the costimulatory receptor CD28, thus stimulating T cells to produce large amounts of inflammatory cytokines, which may affect intestinal epithelial barrier integrity and functions. However, the role of T cell-mediated SEB inflammatory activity remains unknown. Here we show that inflammatory cytokines produced by T cells following SEB stimulation induce dysfunctions in Caco-2 intestinal epithelial cells by promoting actin cytoskeleton remodelling and epithelial cell-cell junction down-regulation. We also found that SEB-activated inflammatory T cells promote the up-regulation of epithelial-mesenchymal transition transcription factors (EMT-TFs) in a nuclear factor-κB (NF-κB)- and STAT3-dependent manner. Finally, by using a structure-based design approach, we identified a SEB mimetic peptide (pSEB116-132) that, by blocking the binding of SEB to CD28, dampens inflammatory-mediated dysregulation of intestinal epithelial barrier.
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Affiliation(s)
- Carola Amormino
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
| | - Emanuela Russo
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
| | - Valentina Tedeschi
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
| | - Maria Teresa Fiorillo
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
| | - Alessandro Paiardini
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, Rome, Italy
| | - Francesco Spallotta
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
- Laboratory affiliated to Instituto Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Laura Rosanò
- Institute of Molecular Biology and Pathology, CNR, Rome, Italy
| | - Loretta Tuosto
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
| | - Martina Kunkl
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
- Neuroimmunology Unit, IRCCS Santa Lucia Foundation, Rome, Italy
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5
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Klotskova H, Kidess E, Nadal AL, Brugman S. The role of interleukin-22 in mammalian intestinal homeostasis: Friend and foe. Immun Inflamm Dis 2024; 12:e1144. [PMID: 38363052 PMCID: PMC10870696 DOI: 10.1002/iid3.1144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/07/2023] [Accepted: 12/26/2023] [Indexed: 02/17/2024] Open
Abstract
Interleukin-22 (IL-22) is an important cytokine in the intestinal environment. IL-22 is mainly produced by immune cells and targeted at nonimmune cells such as epithelial and stromal cells in a broad array of tissues such as -but not restricted to- the liver and adipose tissue. IL-22 therefore connects immune functions with metabolic functions of the host, and since it is induced by the microbiota, connects host functioning to the outside environment. IL-22 induces epithelial cell proliferation aiding in rapid epithelium regeneration and wound healing. Additionally, IL-22 activates antiapoptotic genes and DNA damage response pathways, enhancing epithelial cell survival. Recently, it has also been shown that IL-22 induces Paneth cell differentiation in humans. However, IL-22 can also contribute to intestinal epithelium damage and reduces microbial diversity in the intestine directly or indirectly by inducing excessive antimicrobial peptide production by epithelial cells. Moreover, IL-22 enhances angiogenesis and may therefore support tumorigenesis in the intestine. In conclusion, it appears that whether IL-22 has a beneficial or harmful effect in the mammalian intestine largely depends on its regulation. This review aims to provide a comprehensive overview of the current literature and emphasizes that IL-22 signaling outcome depends on the timing and duration of IL-22 production, the presence of it regulators such as IL-22BP, and the specific location of the cytokine production in the gastrointestinal tract.
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Affiliation(s)
- Hedi‐Britt Klotskova
- Host Microbe Interactomics, Animal Sciences GroupWageningen University and ResearchWageningenThe Netherlands
| | - Evelien Kidess
- Host Microbe Interactomics, Animal Sciences GroupWageningen University and ResearchWageningenThe Netherlands
| | - Adria L. Nadal
- Host Microbe Interactomics, Animal Sciences GroupWageningen University and ResearchWageningenThe Netherlands
| | - Sylvia Brugman
- Host Microbe Interactomics, Animal Sciences GroupWageningen University and ResearchWageningenThe Netherlands
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6
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Chua KJ, Ling H, Hwang IY, Lee HL, March JC, Lee YS, Chang MW. An Engineered Probiotic Produces a Type III Interferon IFNL1 and Reduces Inflammations in in vitro Inflammatory Bowel Disease Models. ACS Biomater Sci Eng 2023; 9:5123-5135. [PMID: 36399014 PMCID: PMC10498420 DOI: 10.1021/acsbiomaterials.2c00202] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 11/01/2022] [Indexed: 11/21/2022]
Abstract
The etiology of inflammatory bowel diseases (IBDs) frequently results in the uncontrolled inflammation of intestinal epithelial linings and the local environment. Here, we hypothesized that interferon-driven immunomodulation could promote anti-inflammatory effects. To test this hypothesis, we engineered probiotic Escherichia coli Nissle 1917 (EcN) to produce and secrete a type III interferon, interferon lambda 1 (IFNL1), in response to nitric oxide (NO), a well-known colorectal inflammation marker. We then validated the anti-inflammatory effects of the engineered EcN strains in two in vitro models: a Caco-2/Jurkat T cell coculture model and a scaffold-based 3D coculture IBD model that comprises intestinal epithelial cells, myofibroblasts, and T cells. The IFNL1-expressing EcN strains upregulated Foxp3 expression in T cells and thereafter reduced the production of pro-inflammatory cytokines such as IL-13 and -33, significantly ameliorating inflammation. The engineered strains also rescued the integrity of the inflamed epithelial cell monolayer, protecting epithelial barrier integrity even under inflammation. In the 3D coculture model, IFNL1-expressing EcN treatment enhanced the population of regulatory T cells and increased anti-inflammatory cytokine IL-10. Taken together, our study showed the anti-inflammatory effects of IFNL1-expressing probiotics in two in vitro IBD models, demonstrating their potential as live biotherapeutics for IBD immunotherapy.
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Affiliation(s)
- Koon Jiew Chua
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, 117456, Singapore
- Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117456, Singapore
- Department
of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore,117596, Singapore
- Wilmar-NUS
Corporate Laboratory, National University
of Singapore, 117599, Singapore
| | - Hua Ling
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, 117456, Singapore
- Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117456, Singapore
- Department
of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore,117596, Singapore
- Wilmar-NUS
Corporate Laboratory, National University
of Singapore, 117599, Singapore
| | - In Young Hwang
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, 117456, Singapore
- Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117456, Singapore
- Department
of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore,117596, Singapore
- Wilmar-NUS
Corporate Laboratory, National University
of Singapore, 117599, Singapore
| | - Hui Ling Lee
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, 117456, Singapore
- Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117456, Singapore
- Department
of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore,117596, Singapore
- Wilmar-NUS
Corporate Laboratory, National University
of Singapore, 117599, Singapore
| | - John C. March
- Department
of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Yung Seng Lee
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, 117456, Singapore
- Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117456, Singapore
- Department
of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore
| | - Matthew Wook Chang
- NUS
Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, 117456, Singapore
- Synthetic
Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117456, Singapore
- Department
of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore,117596, Singapore
- Wilmar-NUS
Corporate Laboratory, National University
of Singapore, 117599, Singapore
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7
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Wang P, Kljavin N, Nguyen TTT, Storm EE, Marsh B, Jiang J, Lin W, Menon H, Piskol R, de Sauvage FJ. Adrenergic nerves regulate intestinal regeneration through IL-22 signaling from type 3 innate lymphoid cells. Cell Stem Cell 2023; 30:1166-1178.e8. [PMID: 37597516 DOI: 10.1016/j.stem.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 06/23/2023] [Accepted: 07/25/2023] [Indexed: 08/21/2023]
Abstract
The intestinal epithelium has high intrinsic turnover rate, and the precise renewal of the epithelium is dependent on the microenvironment. The intestine is innervated by a dense network of peripheral nerves that controls various aspects of intestinal physiology. However, the role of neurons in regulating epithelial cell regeneration remains largely unknown. Here, we investigated the effects of gut-innervating adrenergic nerves on epithelial cell repair following irradiation (IR)-induced injury. We observed that adrenergic nerve density in the small intestine increased post IR, while chemical adrenergic denervation impaired epithelial regeneration. Single-cell RNA sequencing experiments revealed a decrease in IL-22 signaling post IR in denervated animals. Combining pharmacologic and genetic tools, we demonstrate that β-adrenergic receptor signaling drives IL-22 production from type 3 innate lymphoid cells (ILC3s) post IR, which in turn promotes epithelial regeneration. These results define an adrenergic-ILC3 axis important for intestinal regeneration.
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Affiliation(s)
- Putianqi Wang
- Molecular Oncology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Noelyn Kljavin
- Molecular Oncology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Thi Thu Thao Nguyen
- Oncology Bioinformatics, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Elaine E Storm
- Molecular Oncology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Bryan Marsh
- Molecular Oncology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Jian Jiang
- Research Pathology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - William Lin
- Research Pathology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Hari Menon
- Microchemistry, Proteomics, Lipidomics and Next Generation Sequencing, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Robert Piskol
- Oncology Bioinformatics, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
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Shan J, Liu S, Liu H, Yuan J, Lin J. Mechanism of Qingchang Suppository on repairing the intestinal mucosal barrier in ulcerative colitis. Front Pharmacol 2023; 14:1221849. [PMID: 37675045 PMCID: PMC10478270 DOI: 10.3389/fphar.2023.1221849] [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: 05/13/2023] [Accepted: 08/07/2023] [Indexed: 09/08/2023] Open
Abstract
Ulcerative colitis (UC) is a refractory inflammatory bowel disease, and the outcomes of conventional therapies of UC, including 5-aminosalicylic acid, glucocorticoids, immunosuppressants, and biological agents, are not satisfied with patients and physicians with regard to adverse reactions and financial burden. The abnormality of the intestinal mucosal barrier in the pathogenesis of UC was verified. Qingchang Suppository (QCS) is an herbal preparation and is effective in treating ulcerative proctitis. The mechanism of QCS and its active ingredients have not been concluded especially in mucosal healing. This review elucidated the potential mechanism of QCS from the intestinal mucosal barrier perspective to help exploring future QCS research directions.
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Affiliation(s)
- Jingyi Shan
- Department of Gastroenterology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Suxian Liu
- Department of Gastroenterology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Haoyue Liu
- Department of Intensive Care Unit, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianye Yuan
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiang Lin
- Department of Gastroenterology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Chen J, Yao J. Th22 cells and the intestinal mucosal barrier. Front Immunol 2023; 14:1221068. [PMID: 37646028 PMCID: PMC10461049 DOI: 10.3389/fimmu.2023.1221068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/21/2023] [Indexed: 09/01/2023] Open
Abstract
T-helper 22 (Th22) cells represent a novel subset of CD4+ T cells that exhibit distinctive characteristics, namely the secretion of IL-22 while abstaining from secreting IL-17 and interferon-γ (IFN-γ). These cells serve as the primary source of IL-22, and both Th22 cells and IL-22 are believed to play a role in maintaining intestinal mucosal homeostasis in inflammatory bowel disease (IBD). However, the precise functions of Th22 cells and IL-22 in this context remain a subject of debate. In this work, we aimed to elucidate their impact on the integrity of the intestinal mucosal barrier by presenting an overview of the molecular structure characteristics and functional effects of Th22 cells and IL-22. Furthermore, we would explore targeted treatment approaches and potential therapeutic strategies focusing on the Th22 and IL-22 pathways.
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Affiliation(s)
- Jieli Chen
- Department of Gastroenterology, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Jun Yao
- Department of Gastroenterology, Shenzhen People’s Hospital, Shenzhen, Guangdong, China
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10
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Chen X, Luo D, Jia G, Zhao H, Liu G, Huang Z. L-theanine attenuates porcine intestinal tight junction damage induced by LPS via p38 MAPK/NLRP3 signaling in IPEC-J2 cells. Food Chem Toxicol 2023:113870. [PMID: 37271275 DOI: 10.1016/j.fct.2023.113870] [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: 04/15/2023] [Revised: 05/27/2023] [Accepted: 06/01/2023] [Indexed: 06/06/2023]
Abstract
L-theanine is a natural bioactive component in tea leaves and has anti-inflammatory effects. The study aimed to investigated the effects and underlying mechanisms of L-theanine on lipopolysaccharide (LPS)-induced intestinal tight junction damage in IPEC-J2 cells. Results showed that LPS induced tight junction damage by increasing reactive oxygen species production and lactate dehydrogenase (LDH) release and decreasing the mRNA expression of tight junction proteins related genes zonula occludens-1 (ZO-1, also known as Tjp1), Occludin and Claudin-1, while L-theanine reversed such an effect and attenuated the increase of p38 mitogen-activated protein kinase (p38 MAPK) mRNA expression. The p38 MAPK inhibitor (SB203580) attenuated the mRNA expression of nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (Nlrp3) inflammasome and interleukin-1β (Il-1β), and increased the mRNA expression of Tjp1, Occludin and Claudin-1, which showed a similar effect with L-theanine. In addition, NLRP3 inhibitor MCC950 attenuated the Il-1β expression and LDH release, while increased the expression of tight-junction protein-related genes. In conclusion, L-theanine could protect LPS-induced intestinal tight junction damage by inhibiting the activation of p38 MAPK-mediated NLRP3 inflammasome pathway.
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Affiliation(s)
- Xiaoling Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Diaoyun Luo
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Gang Jia
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Hua Zhao
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Guangmang Liu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Zhiqing Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China.
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11
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Breugelmans T, Arras W, Oosterlinck B, Jauregui-Amezaga A, Somers M, Cuypers B, Laukens K, De Man JG, De Schepper HU, De Winter BY, Smet A. IL-22-Activated MUC13 Impacts on Colonic Barrier Function through JAK1/STAT3, SNAI1/ZEB1 and ROCK2/MAPK Signaling. Cells 2023; 12:cells12091224. [PMID: 37174625 PMCID: PMC10177587 DOI: 10.3390/cells12091224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/09/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Overexpression of the transmembrane mucin MUC13, as seen in inflammatory bowel diseases (IBD), could potentially impact barrier function. This study aimed to explore how inflammation-induced MUC13 disrupts epithelial barrier integrity by affecting junctional protein expression in IBD, thereby also considering the involvement of MUC1. RNA sequencing and permeability assays were performed using LS513 cells transfected with MUC1 and MUC13 siRNA and subsequently stimulated with IL-22. In vivo intestinal permeability and MUC13-related signaling pathways affecting barrier function were investigated in acute and chronic DSS-induced colitis wildtype and Muc13-/- mice. Finally, the expression of MUC13, its regulators and other barrier mediators were studied in IBD and control patients. Mucin knockdown in intestinal epithelial cells affected gene expression of several barrier mediators in the presence/absence of inflammation. IL-22-induced MUC13 expression impacted barrier function by modulating the JAK1/STAT3, SNAI1/ZEB1 and ROCK2/MAPK signaling pathways, with a cooperating role for MUC1. In response to DSS, MUC13 was protective during the acute phase whereas it caused more harm upon chronic colitis. The pathways accounting for the MUC13-mediated barrier dysfunction were also altered upon inflammation in IBD patients. These novel findings indicate an active role for aberrant MUC13 signaling inducing intestinal barrier dysfunction upon inflammation with MUC1 as collaborating partner.
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Affiliation(s)
- Tom Breugelmans
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Infla-Med Research Consortium of Excellence, University of Antwerp, 2610 Antwerp, Belgium
| | - Wout Arras
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Infla-Med Research Consortium of Excellence, University of Antwerp, 2610 Antwerp, Belgium
| | - Baptiste Oosterlinck
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Infla-Med Research Consortium of Excellence, University of Antwerp, 2610 Antwerp, Belgium
| | - Aranzazu Jauregui-Amezaga
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Department of Gastroenterology and Hepatology, University Hospital of Antwerp, 2650 Antwerp, Belgium
| | - Michaël Somers
- Department of Gastroenterology and Hepatology, University Hospital of Antwerp, 2650 Antwerp, Belgium
| | - Bart Cuypers
- Department of Computer Science, Adrem Data Lab, University of Antwerp, 2610 Antwerp, Belgium
| | - Kris Laukens
- Department of Computer Science, Adrem Data Lab, University of Antwerp, 2610 Antwerp, Belgium
| | - Joris G De Man
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Infla-Med Research Consortium of Excellence, University of Antwerp, 2610 Antwerp, Belgium
| | - Heiko U De Schepper
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Infla-Med Research Consortium of Excellence, University of Antwerp, 2610 Antwerp, Belgium
- Department of Gastroenterology and Hepatology, University Hospital of Antwerp, 2650 Antwerp, Belgium
| | - Benedicte Y De Winter
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Infla-Med Research Consortium of Excellence, University of Antwerp, 2610 Antwerp, Belgium
- Department of Gastroenterology and Hepatology, University Hospital of Antwerp, 2650 Antwerp, Belgium
| | - Annemieke Smet
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Infla-Med Research Consortium of Excellence, University of Antwerp, 2610 Antwerp, Belgium
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12
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Meyer F, Wendling D, Demougeot C, Prati C, Verhoeven F. Cytokines and intestinal epithelial permeability: A systematic review. Autoimmun Rev 2023; 22:103331. [PMID: 37030338 DOI: 10.1016/j.autrev.2023.103331] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/03/2023] [Indexed: 04/10/2023]
Abstract
BACKGROUND The intestinal mucosa is composed of a well-organized epithelium, acting as a physical barrier to harmful luminal contents, while simultaneously ensuring absorption of physiological nutrients and solutes. Increased intestinal permeability has been described in various chronic diseases, leading to abnormal activation of subepithelial immune cells and overproduction of inflammatory mediators. This review aimed to summarize and evaluate the effects of cytokines on intestinal permeability. METHODS A systematic review of the literature was performed in the Medline, Cochrane and Embase databases, up to 01/04/2022, to identify published studies assessing the direct effect of cytokines on intestinal permeability. We collected data on the study design, the method of assessment of intestinal permeability, the type of intervention and the subsequent effect on gut permeability. RESULTS A total of 120 publications were included, describing a total of 89 in vitro and 44 in vivo studies. TNFα, IFNγ or IL-1β were the most frequently studied cytokines, inducing an increase in intestinal permeability through a myosin light-chain-mediated mechanism. In situations associated with intestinal barrier disruption, such as inflammatory bowel diseases, in vivo studies showed that anti-TNFα treatment decreased intestinal permeability while achieving clinical recovery. In contrast to TNFα, IL-10 decreased permeability in conditions associated with intestinal hyperpermeability. For some cytokines (e.g. IL-17, IL-23), results are conflicting, with both an increase and a decrease in gut permeability reported, depending on the study model, methodology, or the studied conditions (e.g. burn injury, colitis, ischemia, sepsis). CONCLUSION This systematic review provides evidence that intestinal permeability can be directly influenced by cytokines in numerous conditions. The immune environment probably plays an important role, given the variability of their effect, according to different conditions. A better understanding of these mechanisms could open new therapeutic perspectives for disorders associated with gut barrier dysfunction.
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Affiliation(s)
- Frédéric Meyer
- PEPITE EA4267, Université de Franche-Comté, F-25000 Besançon, France; Department of rheumatology, University Hospital Besançon, F-25000 Besançon, France
| | - Daniel Wendling
- Department of rheumatology, University Hospital Besançon, F-25000 Besançon, France; EA 4266, EPILAB, Université de Franche-Comté, F-25000 Besançon, France
| | - Céline Demougeot
- PEPITE EA4267, Université de Franche-Comté, F-25000 Besançon, France
| | - Clément Prati
- PEPITE EA4267, Université de Franche-Comté, F-25000 Besançon, France; Department of rheumatology, University Hospital Besançon, F-25000 Besançon, France
| | - Frank Verhoeven
- PEPITE EA4267, Université de Franche-Comté, F-25000 Besançon, France; Department of rheumatology, University Hospital Besançon, F-25000 Besançon, France.
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13
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Jochum SB, Engen PA, Shaikh M, Naqib A, Wilber S, Raeisi S, Zhang L, Song S, Sanzo G, Chouhan V, Ko F, Post Z, Tran L, Ramirez V, Green SJ, Khazaie K, Hayden DM, Brown MJ, Voigt RM, Forsyth CB, Keshavarzian A, Swanson GR. Colonic Epithelial Circadian Disruption Worsens Dextran Sulfate Sodium-Induced Colitis. Inflamm Bowel Dis 2023; 29:444-457. [PMID: 36287037 PMCID: PMC9977234 DOI: 10.1093/ibd/izac219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Disruption of central circadian rhythms likely mediated by changes in microbiota and a decrease in gut-derived metabolites like short chain fatty acids (SCFAs) negatively impacts colonic barrier homeostasis. We aimed to explore the effects of isolated peripheral colonic circadian disruption on the colonic barrier in a mouse model of colitis and explore the mechanisms, including intestinal microbiota community structure and function. METHODS Colon epithelial cell circadian rhythms were conditionally genetically disrupted in mice: TS4Cre-BMAL1lox (cBMAL1KO) with TS4Cre as control animals. Colitis was induced through 5 days of 2% dextran sulfate sodium (DSS). Disease activity index and intestinal barrier were assessed, as were fecal microbiota and metabolites. RESULTS Colitis symptoms were worse in mice with peripheral circadian disruption (cBMAL1KO). Specifically, the disease activity index and intestinal permeability were significantly higher in circadian-disrupted mice compared with control animals (TS4Cre) (P < .05). The worsening of colitis appears to be mediated, in part, through JAK (Janus kinase)-mediated STAT3 (signal transducer and activator of transcription 3), which was significantly elevated in circadian-disrupted (cBMAL1KO) mice treated with DSS (P < .05). Circadian-disrupted (cBMAL1KO) mice also had decreased SCFA metabolite concentrations and decreased relative abundances of SCFA-producing bacteria in their stool when compared with control animals (TS4Cre). CONCLUSIONS Disruption of intestinal circadian rhythms in colonic epithelial cells promoted more severe colitis, increased inflammatory mediators (STAT3 [signal transducer and activator of transcription 3]), and decreased gut microbiota-derived SCFAs compared with DSS alone. Further investigation elucidating the molecular mechanisms behind these findings could provide novel circadian directed targets and strategies in the treatment of inflammatory bowel disease.
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Affiliation(s)
- Sarah B Jochum
- Department of Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Phillip A Engen
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Maliha Shaikh
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Ankur Naqib
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Sherry Wilber
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Shohreh Raeisi
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Lijuan Zhang
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Shiwen Song
- Department of Pathology, GoPath Global Pathology Service, Buffalo Grove, IL, USA
| | - Gabriella Sanzo
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Vijit Chouhan
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Frank Ko
- Department of Cell and Molecular Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Zoe Post
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Laura Tran
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Vivian Ramirez
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
| | - Stefan J Green
- Genomics and Microbiome Core Facility, Rush University Medical Center, Chicago, IL, USA
| | | | - Dana M Hayden
- Division of Colon and Rectal Surgery, Department of Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Mark J Brown
- Department of Cellular and Molecular Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Robin M Voigt
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Christopher B Forsyth
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Ali Keshavarzian
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA
- Department of Physiology, Rush University Medical Center, Chicago, IL, USA
| | - Garth R Swanson
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush Medical College, Rush University Medical Center, Chicago, IL, USA
- Department of Medicine, Rush University Medical Center, Chicago, IL, USA
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14
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Salari A, Zhou K, Nikolovska K, Seidler U, Amiri M. Human Colonoid-Myofibroblast Coculture for Study of Apical Na +/H + Exchangers of the Lower Cryptal Neck Region. Int J Mol Sci 2023; 24:ijms24054266. [PMID: 36901695 PMCID: PMC10001859 DOI: 10.3390/ijms24054266] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/17/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023] Open
Abstract
Cation and anion transport in the colonocyte apical membrane is highly spatially organized along the cryptal axis. Because of lack of experimental accessibility, information about the functionality of ion transporters in the colonocyte apical membrane in the lower part of the crypt is scarce. The aim of this study was to establish an in vitro model of the colonic lower crypt compartment, which expresses the transit amplifying/progenitor (TA/PE) cells, with accessibility of the apical membrane for functional study of lower crypt-expressed Na+/H+ exchangers (NHEs). Colonic crypts and myofibroblasts were isolated from human transverse colonic biopsies, expanded as three-dimensional (3D) colonoids and myofibroblast monolayers, and characterized. Filter-grown colonic myofibroblast-colonic epithelial cell (CM-CE) cocultures (myofibroblasts on the bottom of the transwell and colonocytes on the filter) were established. The expression pattern for ion transport/junctional/stem cell markers of the CM-CE monolayers was compared with that of nondifferentiated (EM) and differentiated (DM) colonoid monolayers. Fluorometric pHi measurements were performed to characterize apical NHEs. CM-CE cocultures displayed a rapid increase in transepithelial electrical resistance (TEER), paralleled by downregulation of claudin-2. They maintained proliferative activity and an expression pattern resembling TA/PE cells. The CM-CE monolayers displayed high apical Na+/H+ exchange activity, mediated to >80% by NHE2. Human colonoid-myofibroblast cocultures allow the study of ion transporters that are expressed in the apical membrane of the nondifferentiated colonocytes of the cryptal neck region. The NHE2 isoform is the predominant apical Na+/H+ exchanger in this epithelial compartment.
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Affiliation(s)
- Azam Salari
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30625 Hannover, Germany
| | - Kunyan Zhou
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30625 Hannover, Germany
- Department of Thyroid Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Katerina Nikolovska
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30625 Hannover, Germany
| | - Ursula Seidler
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30625 Hannover, Germany
- Correspondence: (U.S.); (M.A.); Tel.: +49-511-532-9427 (U.S.); Fax: +49-511-532-8428 (U.S.)
| | - Mahdi Amiri
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30625 Hannover, Germany
- Correspondence: (U.S.); (M.A.); Tel.: +49-511-532-9427 (U.S.); Fax: +49-511-532-8428 (U.S.)
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15
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Butyrate promotes post-stroke outcomes in aged mice via interleukin-22. Exp Neurol 2023; 363:114351. [PMID: 36804553 DOI: 10.1016/j.expneurol.2023.114351] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/06/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023]
Abstract
Aging increases the risk of stroke, may exacerbate neuroinflammatory responses, reduce angiogenesis, and promote white matter damage post-stroke, all of which contribute to long-term functional recovery. Butyric acid, an important gut microbial metabolite, showed the highest correlation with the outcomes of ischemic stroke, and butyrate was selected as an effective treatment for aged stroke mice. Here, we tested the neurorestorative effect and potential therapeutic mechanisms of butyrate in aged mice with stroke. Aged male C57BL/6 J mice (17-19 months) were subjected to photothrombotic stroke. We performed butyrate supplementation in the drinking water for 3 weeks before surgery until 14 days after the stroke. At 14 days after ischemic stroke, white matter damage, leukocyte infiltration, and blood-brain barrier permeability were all decreased in the aged stroke mice that received the butyrate treatment, which also improved neurological outcomes by stimulating angiogenesis. Stroke reduces the level of interleukin-22 (IL-22) and butyrate treatment significantly enhanced IL-22 expression in the brain. To further validate the mechanisms of butyrate promoting neurological function after stroke, monoclonal antibodies were used to block IL-22 in aged stroke mice when butyrate treatment was provided. Blocking IL-22 in butyrate-treated aged stroke fails to improve functional outcomes and attenuated butyrate-induced angiogenesis, increased axon/white matter density and blood-brain barrier (BBB) integrity, but has no effect on inflammatory cells infiltration. In conclusion, butyrate improves outcomes in aged mice after stroke by promoting angiogenesis and BBB integrity and reducing leukocyte infiltration. To some extent, IL-22 may contribute to butyrate treatment induced vascular remodeling and increased BBB integrity responses in aged stroke mice.
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Lechuga S, Braga-Neto MB, Naydenov NG, Rieder F, Ivanov AI. Understanding disruption of the gut barrier during inflammation: Should we abandon traditional epithelial cell lines and switch to intestinal organoids? Front Immunol 2023; 14:1108289. [PMID: 36875103 PMCID: PMC9983034 DOI: 10.3389/fimmu.2023.1108289] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/01/2023] [Indexed: 02/18/2023] Open
Abstract
Disruption of the intestinal epithelial barrier is a hallmark of mucosal inflammation. It increases exposure of the immune system to luminal microbes, triggering a perpetuating inflammatory response. For several decades, the inflammatory stimuli-induced breakdown of the human gut barrier was studied in vitro by using colon cancer derived epithelial cell lines. While providing a wealth of important data, these cell lines do not completely mimic the morphology and function of normal human intestinal epithelial cells (IEC) due to cancer-related chromosomal abnormalities and oncogenic mutations. The development of human intestinal organoids provided a physiologically-relevant experimental platform to study homeostatic regulation and disease-dependent dysfunctions of the intestinal epithelial barrier. There is need to align and integrate the emerging data obtained with intestinal organoids and classical studies that utilized colon cancer cell lines. This review discusses the utilization of human intestinal organoids to dissect the roles and mechanisms of gut barrier disruption during mucosal inflammation. We summarize available data generated with two major types of organoids derived from either intestinal crypts or induced pluripotent stem cells and compare them to the results of earlier studies with conventional cell lines. We identify research areas where the complementary use of colon cancer-derived cell lines and organoids advance our understanding of epithelial barrier dysfunctions in the inflamed gut and identify unique questions that could be addressed only by using the intestinal organoid platforms.
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Affiliation(s)
- Susana Lechuga
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, United States
| | - Manuel B. Braga-Neto
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, United States
| | - Nayden G. Naydenov
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, United States
| | - Florian Rieder
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, United States
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, United States
| | - Andrei I. Ivanov
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, United States
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Luo Q, Qian R, Qiu Z, Yamamoto FY, Du Y, Lin X, Zhao J, Xu Q. Dietary α-ketoglutarate alleviates glycinin and β-conglycinin induced damage in the intestine of mirror carp ( Cyprinus carpio). Front Immunol 2023; 14:1140012. [PMID: 37187750 PMCID: PMC10179059 DOI: 10.3389/fimmu.2023.1140012] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
This study investigated the glycinin and β-conglycinin induced intestinal damage and α-ketoglutarate alleviating the damage of glycinin and β-conglycinin in intestine. Carp were randomly divided into six dietary groups: containing fish meal (FM) as the protein source, soybean meal (SM), glycinin (FMG), β-conglycinin (FMc), glycinin+1.0% α-ketoglutarate (AKG) (FMGA), β-conglycinin+1.0% AKG (FMcA). The intestines were collected on 7th, and the hepatopancreas and intestines were collected on 56th. Fish treated with SM and FMc displayed reduced weight gain, specific growth rate, and protein efficiency. On 56th day, Fish fed on SM, FMG and FMc presented lower superoxide dismutase (SOD) activities. FMGA and FMcA had higher SOD activity than those fed on the FMG and FMc, respectively. In intestine, fish fed on the SM diets collected on 7th presented upregulated the expression of transforming growth factor beta (TGFβ1), AMP-activated protein kinase beta (AMPKβ), AMPKγ, and acetyl-CoA carboxylase (ACC). Fish fed FMG presented upregulated expression of tumor necrosis factor alpha (TNF-α), caspase9, and AMPKγ, while downregulated the expression of claudin7 and AMPKα. FMc group presented upregulated expression of TGFβ1, caspase3, caspase8, and ACC. Fish fed FMGA showed upregulated expression of TGFβ1, claudin3c, claudin7, while downregulating the expression of TNF-α and AMPKγ when compared to fish fed FMG diet. FMcA upregulated the expression of TGFβ1, claudin3c than fed on the FMc. In intestine, the villus height and mucosal thickness of the proximal intestine (PI) and the distal intestine (DI) were decreased and crypt depth of the PI and mid intestine (MI) were increased in SM, FMG and FMc. In addition, fish fed on SM, FMG and FMc presented lower citrate synthase (CS), isocitrate dehydrogenase (ICD), α-ketoglutarate dehydrogenase complex (α-KGDHC) Na+/K+-ATPase activity in DI. FMGA had higher CS, ICD, α-KGDHC, and Na+/K+-ATPase activity in PI and MI than those fed on the FMG. FMcA had higher Na+/K+-ATPase activity in MI. In conclusion, dietary soybean meal destroys the intestine's health, the adverse effects are related to the presence of β-conglycinin and glycinin, especially glycinin. AKG may regulate intestinal energy via tricarboxylic acid cycle, thereby alleviating the damage intestinal morphology caused by the dietary soybean antigen proteins.
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Affiliation(s)
- Qiaohua Luo
- College of Life Science, Huzhou University, Huzhou, China
- Nation Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Zhejiang Provincial Key Laboratory of Aquatic Bioresource Conservation and Development Technology, Huzhou, China
| | - Rendong Qian
- College of Life Science, Huzhou University, Huzhou, China
- Nation Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Zhejiang Provincial Key Laboratory of Aquatic Bioresource Conservation and Development Technology, Huzhou, China
| | - Zongsheng Qiu
- College of Life Science, Huzhou University, Huzhou, China
- Nation Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Zhejiang Provincial Key Laboratory of Aquatic Bioresource Conservation and Development Technology, Huzhou, China
| | - Fernando Y. Yamamoto
- Thad Cochran National Warmwater Aquaculture Center Agriculture and Forestry Experiment Station, Mississippi State University, Starkville, MS, United States
- Department of Wildlife, Fisheries and Aquaculture, Mississippi State University, Starkville, MS, United States
| | - Yingying Du
- College of Life Science, Huzhou University, Huzhou, China
- Nation Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Zhejiang Provincial Key Laboratory of Aquatic Bioresource Conservation and Development Technology, Huzhou, China
| | - Xiaowen Lin
- College of Life Science, Huzhou University, Huzhou, China
- Nation Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Zhejiang Provincial Key Laboratory of Aquatic Bioresource Conservation and Development Technology, Huzhou, China
| | - Jianhua Zhao
- College of Life Science, Huzhou University, Huzhou, China
- Nation Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Zhejiang Provincial Key Laboratory of Aquatic Bioresource Conservation and Development Technology, Huzhou, China
| | - Qiyou Xu
- College of Life Science, Huzhou University, Huzhou, China
- Nation Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Zhejiang Provincial Key Laboratory of Aquatic Bioresource Conservation and Development Technology, Huzhou, China
- *Correspondence: Qiyou Xu,
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Mycobacterium abscessus infection results in decrease of oxidative metabolism of lung airways cells and relaxation of the epithelial mucosal tight junctions. Tuberculosis (Edinb) 2023; 138:102303. [PMID: 36652813 DOI: 10.1016/j.tube.2023.102303] [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: 10/11/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023]
Abstract
Mycobacterium abscessus complex is a group of environmental pathogens that recently have been isolated more from patients with underlying lung diseases, such and COPD, bronchiectasis, and cystic fibrosis. The mechanisms involved in the pathogenesis of these diseases have only recently been investigated. Infection is associated with biofilm formation on the airway mucosa, invasion of the mucosal epithelial cells and a time-dependent impairment of the integrity of the monolayer. Using electron microscopy, it was shown that Mycobacterium abscessus induced lesions of the cell surface structures. Tight junction proteins claudin-1 and occludin-1 have increased transcription in cells exposed to Mycobacterium abscessus, in contrast to cells exposed to Mycobacterium avium. Infection of A549 alveolar epithelial cells by Mycobacterium abscessus reduced the oxidative metabolism of the cell, without inducing necrosis. A transposon library screen identified mutants that do not alter the metabolism of the A549 cells.Once the bacterium crosses the epithelial barrier, it may encounter sub-epithelial macrophages. Select mutants were used for infection assays to determine their effects on membrane integrity. Translocated select mutants were attenuated in macrophages compared to wild type Mycobacterium abscessus. In summary, the dynamics of Mycobacterium abscessus infection appears to be different from other non-tuberculous mycobacteria (NTMs). Future studies will attempt to address the mechanism involved in airway membrane lesions.
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Immune Impairment Associated with Vitamin A Deficiency: Insights from Clinical Studies and Animal Model Research. Nutrients 2022; 14:nu14235038. [PMID: 36501067 PMCID: PMC9738822 DOI: 10.3390/nu14235038] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Vitamin A (VA) is critical for many biological processes, including embryonic development, hormone production and function, the maintenance and modulation of immunity, and the homeostasis of epithelium and mucosa. Specifically, VA affects cell integrity, cytokine production, innate immune cell activation, antigen presentation, and lymphocyte trafficking to mucosal surfaces. VA also has been reported to influence the gut microbiota composition and diversity. Consequently, VA deficiency (VAD) results in the imbalanced production of inflammatory and immunomodulatory cytokines, intestinal inflammation, weakened mucosal barrier functions, reduced reactive oxygen species (ROS) and disruption of the gut microbiome. Although VAD is primarily known to cause xerophthalmia, its role in the impairment of anti-infectious defense mechanisms is less defined. Infectious diseases lead to temporary anorexia and lower dietary intake; furthermore, they adversely affect VA status by interfering with VA absorption, utilization and excretion. Thus, there is a tri-directional relationship between VAD, immune response and infections, as VAD affects immune response and predisposes the host to infection, and infection decreases the intestinal absorption of the VA, thereby contributing to secondary VAD development. This has been demonstrated using nutritional and clinical studies, radiotracer studies and knockout animal models. An in-depth understanding of the relationship between VAD, immune response, gut microbiota and infections is critical for optimizing vaccine efficacy and the development of effective immunization programs for countries with high prevalence of VAD. Therefore, in this review, we have comprehensively summarized the existing knowledge regarding VAD impacts on immune responses to infections and post vaccination. We have detailed pathological conditions associated with clinical and subclinical VAD, gut microbiome adaptation to VAD and VAD effects on the immune responses to infection and vaccines.
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Mavrogeni ME, Asadpoor M, Henricks PAJ, Keshavarzian A, Folkerts G, Braber S. Direct Action of Non-Digestible Oligosaccharides against a Leaky Gut. Nutrients 2022; 14:4699. [PMID: 36364961 PMCID: PMC9655944 DOI: 10.3390/nu14214699] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 10/28/2023] Open
Abstract
The epithelial monolayer is the primary determinant of mucosal barrier function, and tight junction (TJ) complexes seal the paracellular space between the adjacent epithelial cells and represent the main "gate-keepers" of the paracellular route. Impaired TJ functionality results in increased permeation of the "pro-inflammatory" luminal contents to the circulation that induces local and systemic inflammatory and immune responses, ultimately triggering and/or perpetuating (chronic) systemic inflammatory disorders. Increased gut leakiness is associated with intestinal and systemic disease states such as inflammatory bowel disease and neurodegenerative diseases such as Parkinson's disease. Modulation of TJ dynamics is an appealing strategy aiming at inflammatory conditions associated with compromised intestinal epithelial function. Recently there has been a growing interest in nutraceuticals, particularly in non-digestible oligosaccharides (NDOs). NDOs confer innumerable health benefits via microbiome-shaping and gut microbiota-related immune responses, including enhancement of epithelial barrier integrity. Emerging evidence supports that NDOs also exert health-beneficial effects on microbiota independently via direct interactions with intestinal epithelial and immune cells. Among these valuable features, NDOs promote barrier function by directly regulating TJs via AMPK-, PKC-, MAPK-, and TLR-associated pathways. This review provides a comprehensive overview of the epithelial barrier-protective effects of different NDOs with a special focus on their microbiota-independent modulation of TJs.
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Affiliation(s)
- Maria Eleni Mavrogeni
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Mostafa Asadpoor
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Paul A. J. Henricks
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Ali Keshavarzian
- Division of Gastroenterology, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Saskia Braber
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
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21
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Xiong L, Nutt SL, Seillet C. Innate lymphoid cells: More than just immune cells. Front Immunol 2022; 13:1033904. [PMID: 36389661 PMCID: PMC9643152 DOI: 10.3389/fimmu.2022.1033904] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/10/2022] [Indexed: 11/21/2022] Open
Abstract
Since their discovery, innate lymphoid cells (ILCs) have been described as the innate counterpart of the T cells. Indeed, ILCs and T cells share many features including their common progenitors, transcriptional regulation, and effector cytokine secretion. Several studies have shown complementary and redundant roles for ILCs and T cells, leaving open questions regarding why these cells would have been evolutionarily conserved. It has become apparent in the last decade that ILCs, and rare immune cells more generally, that reside in non-lymphoid tissue have non-canonical functions for immune cells that contribute to tissue homeostasis and function. Viewed through this lens, ILCs would not be just the innate counterpart of T cells, but instead act as a link between sensory cells that monitor any changes in the environment that are not necessarily pathogenic and instruct effector cells that act to maintain body homeostasis. As these non-canonical functions of immune cells are operating in absence of pathogenic signals, it opens great avenues of research for immunologists that they now need to identify the physiological cues that regulate these cells and how the process confers a finer level of control and a greater flexibility that enables the organism to adapt to changing environmental conditions. In the review, we highlight how ILCs participate in the physiologic function of the tissue in which they reside and how physiological cues, in particular neural inputs control their homeostatic activity.
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Affiliation(s)
- Le Xiong
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
| | - Stephen L. Nutt
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
| | - Cyril Seillet
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
- *Correspondence: Cyril Seillet,
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Rainard P, Gilbert FB, Germon P. Immune defenses of the mammary gland epithelium of dairy ruminants. Front Immunol 2022; 13:1031785. [PMID: 36341445 PMCID: PMC9634088 DOI: 10.3389/fimmu.2022.1031785] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/03/2022] [Indexed: 11/17/2022] Open
Abstract
The epithelium of the mammary gland (MG) fulfills three major functions: nutrition of progeny, transfer of immunity from mother to newborn, and its own defense against infection. The defense function of the epithelium requires the cooperation of mammary epithelial cells (MECs) with intraepithelial leucocytes, macrophages, DCs, and resident lymphocytes. The MG is characterized by the secretion of a large amount of a nutrient liquid in which certain bacteria can proliferate and reach a considerable bacterial load, which has conditioned how the udder reacts against bacterial invasions. This review presents how the mammary epithelium perceives bacteria, and how it responds to the main bacterial genera associated with mastitis. MECs are able to detect the presence of actively multiplying bacteria in the lumen of the gland: they express pattern recognition receptors (PRRs) that recognize microbe-associated molecular patterns (MAMPs) released by the growing bacteria. Interactions with intraepithelial leucocytes fine-tune MECs responses. Following the onset of inflammation, new interactions are established with lymphocytes and neutrophils recruited from the blood. The mammary epithelium also identifies and responds to antigens, which supposes an antigen-presenting capacity. Its responses can be manipulated with drugs, plant extracts, probiotics, and immune modifiers, in order to increase its defense capacities or reduce the damage related to inflammation. Numerous studies have established that the mammary epithelium is a genuine effector of both innate and adaptive immunity. However, knowledge gaps remain and newly available tools offer the prospect of exciting research to unravel and exploit the multiple capacities of this particular epithelium.
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Lei XY, Zhang DM, Wang QJ, Wang GQ, Li YH, Zhang YR, Yu MN, Yao Q, Chen YK, Guo ZX. Dietary supplementation of two indigenous Bacillus spp on the intestinal morphology, intestinal immune barrier and intestinal microbial diversity of Rhynchocypris lagowskii. FISH PHYSIOLOGY AND BIOCHEMISTRY 2022; 48:1315-1332. [PMID: 36103020 DOI: 10.1007/s10695-022-01121-0] [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: 01/10/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
This study evaluated the effects of dietary administration of two indigenous Bacillus (A: basal control diet; B: 0.15 g/kg of Bacillus subtilis; C: 0.1 g/kg of Bacillus subtilis and 0.05 g/kg of Bacillus licheniformis; D: 0.05 g/kg of Bacillus subtilis and 0.1 g/kg of Bacillus licheniformis; E: 0.15 g/kg of Bacillus licheniformis) on the digestive enzyme activities, intestinal morphology, intestinal immune and barrier-related genes relative expression levels, and intestinal flora of Rhynchocypris lagowskii. The results showed that the fold height, lamina propria width, and muscle layer thickness of midgut and hindgut in group C were significantly higher than that of group A (P < 0.05). The activities of protease, amylase, and lipase in group C were significantly higher than those of group A (P < 0.05). The relative expression levels of IL-1β and IL-8 in the intestine of group C were significantly downregulated, and the relative expression levels of IL-10 and TGF-β were significantly upregulated (P < 0.05). The relative expression levels of Claudin-2 in group A significantly increased and the relative expression levels of Claudin-4 in group A significantly reduced compared with other groups (P < 0.05). The relative expression levels of ZO-1 in groups C and D were significantly higher than those of other groups (P < 0.05). The Bacillus in the intestine of group C has the highest relative abundance among all groups. Overall, it can generally be concluded that dietary supplementation of indigenous Bacillus subtilis and Bacillus licheniformis (group C) can improve the intestinal morphology, digestion, and absorption enzyme activities, enhance intestinal mucosal immunity and barrier function, and maintain the intestinal microbial balance of R. lagowskii.
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Affiliation(s)
- Xin-Yu Lei
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China
| | - Dong-Ming Zhang
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China
| | - Qiu-Ju Wang
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China
| | - Gui-Qin Wang
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China
| | - Yue-Hong Li
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
| | - Yu-Rou Zhang
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China
| | - Men-Nan Yu
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China
| | - Qi Yao
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China
| | - Yu-Ke Chen
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China.
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China.
| | - Zhi-Xin Guo
- College of Life Science, Jilin Agricultural University, Changchun, 130118, China.
- College of Life Science, Tonghua Normal University, Tonghua, 134001, Jilin, China.
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Beute JE, Kim AY, Park JJ, Yang A, Torres-Shafer K, Mullins DW, Sundstrom P. The IL-20RB receptor and the IL-20 signaling pathway in regulating host defense in oral mucosal candidiasis. Front Cell Infect Microbiol 2022; 12:979701. [PMID: 36225230 PMCID: PMC9548646 DOI: 10.3389/fcimb.2022.979701] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Pseudomembranous candidiasis (thrush), erythematous candidiasis, and fungal esophagitis are infections of the barrier mucosa of the upper gastrointestinal tract. The majority of these infections are caused by Candida albicans, an opportunistic fungal pathogen that frequently exists as a harmless commensal on mucosal surfaces lining the gastrointestinal tract. Oral infections are initiated in the superficial stratified squamous epithelium, in which keratinocytes are the most abundant host cells and are the initial points of contact with C. albicans present in saliva. Intrinsic features of oral keratinocytes are likely to play important roles in host defense and tissue homeostasis in oral candidiasis. One understudied pathway that may be important for modulating oral candidiasis is the IL-20 cytokine signaling pathway that employs keratinocyte IL-20RB receptors as ligands for IL-19, IL-20, and IL-24. We report that production of human oral keratinocyte il24 mRNA and protein are stimulated during co-culture with C. albicans. To test the role of the IL-20 family signaling pathway in oral candidiasis, Il20rb-/- mice (lacking the IL-20RB receptor) were compared to wild-type mice in a murine model of oropharyngeal candidiasis. Fungal burdens and percent loss in body weight were determined. Despite comparable fungal burdens, the Il20rb-/- mice exhibited less weight loss over the course of their infection compared to the B6 mice, suggestive of reduced overall disease consequences in the mutant mice. Interference with IL-20 family cytokine signaling may be useful for augmenting the ability of the host to defend itself against pathogens.
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Affiliation(s)
| | - Alex Y. Kim
- Dartmouth College, Hanover, NH, United States
| | | | - Allen Yang
- Dartmouth College, Hanover, NH, United States
| | - Keshia Torres-Shafer
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, NH, United States
| | - David W. Mullins
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, NH, United States
| | - Paula Sundstrom
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, NH, United States
- *Correspondence: Paula Sundstrom,
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Interleukin-22 Ameliorates Dextran Sulfate Sodium-Induced Colitis through the Upregulation of lncRNA-UCL to Accelerate Claudin-1 Expression via Sequestering miR-568 in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8543720. [PMID: 36092152 PMCID: PMC9453001 DOI: 10.1155/2022/8543720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/28/2022]
Abstract
Background Bioactive compound such as interleukin-22 (IL-22) treatment is regarded as a sufficient treatment for ulcerative colitis (UC). It has been found that long noncoding RNAs (lncRNAs) expressed in many inflammatory diseases, including UC. We aimed to verify the treatment effect of bioactive compounds including IL-22 and lncRNAs in UC on colitis mice. Methods UC mice were induced using DSS, followed by IL-22 or PBS intraperitoneally (i.p.) injection. Then, the histopathological parameters of the mice were determined. Then, RNA sequencing was performed to screen the differential lncRNAs. Quantitative real-time PCR (qRT-PCR) and lentivirus identified lncRNA-Ulcerative Colitis lncRNA (lncRNA-UCL) were regarded as the molecular regulator of the colitis mice. The correlation with lncRNA-UCL and mmu-miR-568 was validated using RNA-pulldown. Meanwhile, claudin-1 was predicted and confirmed as the target molecule of mmu-miR-568 using dual-luciferase assay. Results IL-22 could significantly improve the histopathological features and decrease proinflammatory cytokine production in UC mice induced by DSS. It also can stimulate intestinal epithelial cell (IEC) reproduction and prevention of apoptosis. lncRNA-UCL was significantly downregulated in UC mice caused by DSS, while IL-22 treatment effectively reversed this effect. In terms of mechanism, lncRNA-UCL regulates intestinal epithelial homeostasis by sequestering mmu-miR-568 and maintaining close integrated protein expression, such as claudin-1. Conclusions We have demonstrated the incredible role of bioactive compound, such as IL-22, in alleviating DSS-induced colitis symptoms via enhancing lncRNA-UCL expression. It can be regulated using tight junction (TJ) protein.
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Ganieva U, Schneiderman S, Bu P, Beaman K, Dambaeva S. IL-22 regulates endometrial regeneration by enhancing tight junctions and orchestrating extracellular matrix. Front Immunol 2022; 13:955576. [PMID: 36091010 PMCID: PMC9453595 DOI: 10.3389/fimmu.2022.955576] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/08/2022] [Indexed: 11/18/2022] Open
Abstract
The uterine endometrium uniquely regenerates after menses, postpartum, or after breaks in the uterine layer integrity throughout women’s lives. Direct cell–cell contacts ensured by tight and adherens junctions play an important role in endometrial integrity. Any changes in these junctions can alter the endometrial permeability of the uterus and have an impact on the regeneration of uterine layers. Interleukin 22 (IL-22) is a cytokine that is recognized for its role in epithelial regeneration. Moreover, it is crucial in controlling the inflammatory response in mucosal tissues. Here, we studied the role of IL-22 in endometrial recovery after inflammation-triggered abortion. Fecundity of mice was studied in consecutive matings of the same animals after lipopolysaccharide (LPS) (10 µg per mouse)-triggered abortion. The fecundity rate after the second mating was substantially different between IL-22 knockout (IL-22−/−) (9.1%) and wild-type (WT) (71.4%) mice (p < 0.05), while there was no difference between the groups in the initial mating, suggesting that IL-22 deficiency might be associated with secondary infertility. A considerable difference was observed between IL-22−/− and WT mice in the uterine clearance following LPS-triggered abortion. Gross examination of the uteri of IL-22−/− mice revealed non-viable fetuses retained inside the horns (delayed clearance). In contrast, all WT mice had completed abortion with total clearance after LPS exposure. We also discovered that IL-22 deficiency is associated with a decreased expression of tight junctions (claudin-2 and claudin-10) and cell surface pathogen protectors (mucin-1). Moreover, IL-22 has a role in the remodeling of the uterine tissue in the inflammatory environment by regulating epithelial–mesenchymal transition markers called E- and N-cadherin. Therefore, IL-22 contributes to the proper regeneration of endometrial layers after inflammation-triggered abortion. Thus, it might have a practical significance to be utilized as a treatment option postpartum (enhanced regeneration function) and in secondary infertility caused by inflammation (enhanced barrier/protector function).
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Affiliation(s)
- Umida Ganieva
- Center for Cancer Cell Biology, Immunology, and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Sylvia Schneiderman
- Clinical Immunology Laboratory, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Pengli Bu
- Department of Pharmaceutical Sciences, College of Pharmacy, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Kenneth Beaman
- Center for Cancer Cell Biology, Immunology, and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- Clinical Immunology Laboratory, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Svetlana Dambaeva
- Center for Cancer Cell Biology, Immunology, and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- Clinical Immunology Laboratory, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- *Correspondence: Svetlana Dambaeva,
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Das B, Rabalais J, Kozan P, Lu T, Durali N, Okamoto K, McGeough MD, Lee BJ, Barrett KE, Marchelletta R, Sivagnanam M. The effect of a fennel seed extract on the STAT signaling and intestinal barrier function. PLoS One 2022; 17:e0271045. [PMID: 35802574 PMCID: PMC9269469 DOI: 10.1371/journal.pone.0271045] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 06/22/2022] [Indexed: 11/19/2022] Open
Abstract
Background Foeniculum vulgare, F. vulgare, commonly known as fennel, is believed to be one of the world’s oldest medicinal herbs and has been exploited by people for centuries as a nutritional aid for digestive disorders. In many southeast Asian countries, it is ingested as an after-meal snack, mukhvas, due to its breath-freshening and digestive aid properties. F. vulgare is used in some countries, such as Iran, as a complementary and alternative treatment for inflammatory bowel disease (IBD). Methods This study investigated the effects of fennel seed extract on intestinal epithelium barrier function and the Signal Transducer and Activator of Transcription (STAT) pathway. This pathway is active in inflammatory bowel disease. To study the protective effects of fennel seed extract in vitro, monolayers derived from the T84 colonic cell line were challenged with interferon-gamma (IFN-γ) and monitored with and without fennel seed extract. To complement our in vitro studies, the dextran sodium sulfate induced murine colitis model was employed to ascertain whether the protective effect of fennel seed extract can be recapitulated in vivo. Results Fennel seed extract was shown to exert a protective effect on transepithelial electrical resistance (TEER) in both T84 and murine models and showed increases in tight junction-associated mRNA in T84 cell monolayers. Both models demonstrated significant decreases in phosphorylated STAT1 (pSTAT1), indicating reduced activation of the STAT pathway. Additionally, mice treated with fennel seed showed significantly lower ulcer indices than control mice. Conclusions We conclude barrier function of the gastrointestinal tract is improved by fennel seed extract, suggesting the potential utility of this agent as an alternative or adjunctive therapy in IBD.
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Affiliation(s)
- Barun Das
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - John Rabalais
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Philip Kozan
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Tina Lu
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Nassim Durali
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Kevin Okamoto
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Matthew D. McGeough
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
| | - Beom Jae Lee
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States of America
- Department of Gastroenterology, Korea University, Guro Hospital, Seoul, South Korea
| | - Kim E. Barrett
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States of America
- Department of Physiology and Membrane Biology, University of California, Davis, Davis, CA, United States of America
| | - Ronald Marchelletta
- Department of Medicine, University of California, San Diego, La Jolla, CA, United States of America
| | - Mamata Sivagnanam
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America
- Rady Children’s Hospital, San Diego, CA, United States of America
- * E-mail:
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Hamade DF, Espinal A, Yu J, Leibowitz BJ, Fisher R, Hou W, Shields D, van Pijkeren JP, Mukherjee A, Epperly MW, Vlad A, Coffman L, Wang H, Huq MS, Patel R, Huang J, Greenberger JS. Lactobacillus reuteri Releasing IL-22 (LR-IL-22) Facilitates Intestinal Radioprotection for Whole-Abdomen Irradiation (WAI) of Ovarian Cancer. Radiat Res 2022; 198:89-105. [PMID: 35446961 PMCID: PMC9278541 DOI: 10.1667/rade-21-00224.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/28/2022] [Indexed: 12/13/2022]
Abstract
Oral administration (gavage) of a second-generation probiotic, Lactobacillus reuteri (L. reuteri), that releases interleukin-22 (LR-IL-22) at 24 h after total-body irradiation (TBI) mitigates damage to the intestine. We determined that LR-IL-22 also mitigates partial-body irradiation (PBI) and whole-abdomen irradiation (WAI). Irradiation can be an effective treatment for ovarian cancer, but its use is limited by intestinal toxicity. Strategies to mitigate toxicity are important and can revitalize this modality to treat ovarian cancer. In the present studies, we evaluated whether LR-IL-22 facilitates fractionated WAI in female C57BL/6 mice with disseminated ovarian cancer given a single fraction of either 15.75 Gy or 19.75 Gy or 4 daily fractions of 6 Gy or 6.5 Gy. Mice receiving single or multiple administrations of LR-IL-22 during WAI showed improved intestinal barrier integrity (P = 0.0167), reduced levels of radiation-induced intestinal cytokines including KC/CXCL1 (P = 0.002) and IFN-γ (P = 0.0024), and reduced levels of plasma, Eotaxin/CCL11 (P = 0.0088). LR-IL-22 significantly preserved the numbers of Lgr5+GFP+ intestinal stem cells (P = 0.0010) and improved survival (P < 0.0343). Female C57BL/6MUC-1 mice with widespread abdominal syngeneic 2F8cis ovarian cancer that received LR-IL-22 during 6.5 Gy WAI in 4 fractions had reduced tumor burden, less intestinal toxicity, and improved 30-day survival. Furthermore, LR-IL-22 facilitated WAI when added to Paclitaxel and Carboplatin chemotherapy and further increased survival. Oral administration (gavage) of LR-IL-22 is a potentially valuable intestinal radioprotector, which can facilitate therapeutic WAI for widespread intra-abdominal ovarian cancer.
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Affiliation(s)
- Diala F. Hamade
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Alexis Espinal
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Jian Yu
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15260
| | | | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | | | - Amitava Mukherjee
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Anda Vlad
- Department of OB/Gyn and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15260
| | - Lan Coffman
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15260
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260
| | - M. Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Ravi Patel
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Jason Huang
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
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Yao N, Yang Y, Li X, Wang Y, Guo R, Wang X, Li J, Xie Z, Li B, Cui W. Effects of Dietary Nutrients on Fatty Liver Disease Associated With Metabolic Dysfunction (MAFLD): Based on the Intestinal-Hepatic Axis. Front Nutr 2022; 9:906511. [PMID: 35782947 PMCID: PMC9247350 DOI: 10.3389/fnut.2022.906511] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/26/2022] [Indexed: 12/12/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has recently become the most common liver disease with a global prevalence of over 25% and is expected to increase. Recently, experts have reached a consensus that “fatty liver disease associated with metabolic dysfunction or MAFLD” may be a more appropriate and inclusive definition than NAFLD. Like the former name NAFLD, MAFLD, as a manifestation of multiple system metabolic disorders involving the liver, has certain heterogeneity in its pathogenesis, clinical manifestations, pathological changes and natural outcomes. We found that there is a delicate dynamic balance among intestinal microflora, metabolites and host immune system to maintain a healthy intestinal environment and host health. On the contrary, this imbalance is related to diseases such as MAFLD. However, there are no clear studies on how dietary nutrients affect the intestinal environment and participate in the pathogenesis of MAFLD. This review summarizes the interactions among dietary nutrients, intestinal microbiota and MAFLD in an attempt to provide evidence for the use of dietary supplements to regulate liver function in patients with MAFLD. These dietary nutrients influence the development and progression of MAFLD mainly through the hepatic-intestinal axis by altering dietary energy absorption, regulating bile acid metabolism, changing intestinal permeability and producing ethanol. Meanwhile, the nutrients have the ability to combat MAFLD in terms of enriching abundance of intestinal microbiota, reducing Firmicutes/Bacteroidetes ratio and promoting abundance of beneficial gut microbes. Therefore, family therapy with MAFLD using a reasonable diet could be considered.
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Affiliation(s)
- Nan Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Yixue Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Xiaotong Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Yuxiang Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Ruirui Guo
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Xuhan Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Jing Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Zechun Xie
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Bo Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
- *Correspondence: Bo Li
| | - Weiwei Cui
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, China
- Weiwei Cui
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Droessler L, Cornelius V, Boehm E, Stein L, Brunner N, Amasheh S. Barrier Perturbation in Porcine Peyer’s Patches by Tumor Necrosis Factor is Associated With a Dysregulation of Claudins. Front Physiol 2022; 13:889552. [PMID: 35707009 PMCID: PMC9189282 DOI: 10.3389/fphys.2022.889552] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/26/2022] [Indexed: 12/22/2022] Open
Abstract
The proinflammatory cytokine tumor necrosis factor (TNF) has been described as one of the main mediators of intestinal inflammatory diseases, affecting the composition of tight junction (TJ) proteins and leading to a disruption of the epithelial barrier. An intact intestinal barrier is mandatory, because the follicle-associated epithelium of Peyer’s patches represents the first defense line of the intestinal immune system and ensures a controlled uptake of antigens from the gut lumen. In the current study, we have analyzed the detailed effects of TNF on the follicle-associated epithelium of porcine Peyer’s patches by applying the Ussing chamber technique. Epithelial tissue specimens of Peyer’s patches and the surrounding villus epithelium were mounted into conventional Ussing chambers and incubated with TNF for 10 h. The transepithelial resistance, representing epithelial barrier function of the tissue, was recorded. A reduction of transepithelial resistance was detected after 8 h in Peyer’s patch tissue specimens, whereas the villus epithelium was not significantly affected by TNF. Subsequent molecular analysis of TJ protein expression revealed a marked decrease of claudin-1 and -4, and an increase of claudin-2. In neighboring villus epithelium, no significant changes in the expression of TJ proteins could be shown. A strong increase of TNF receptor-2 (TNFR-2) could also be detected in Peyer’s patches, in agreement with the major role of this receptor in Peyer’s patches. Our findings were in accordance with changes detected by confocal laser scanning immunofluorescence microscopy. The regulation of TNF effects via myosin light chain kinase (MLCK) was analyzed in blocking experiments. Our detailed analysis is the first to show that TNF affects the barrier function of the follicle-associated epithelium of porcine Peyer’s patches but has no effects on the villus epithelium. These findings reveal not only the basic differences of epithelial barrier function between the two structures, but also the significance of Peyer’s patches as a primary mucosal immune defense.
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Calik A, Emami NK, Schyns G, White MB, Walsh MC, Romero LF, Dalloul RA. Influence of dietary vitamin E and selenium supplementation on broilers subjected to heat stress, Part II: Oxidative stress, immune response, gut integrity, and intestinal microbiota. Poult Sci 2022; 101:101858. [PMID: 35468426 PMCID: PMC9059080 DOI: 10.1016/j.psj.2022.101858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 03/09/2022] [Indexed: 01/22/2023] Open
Abstract
This study evaluated the effects of vitamin E (Vit E) and selenium (Se) supplementation on mRNA abundance of antioxidant, immune response, and tight junction genes, as well as taxonomic and functional profiles of ileal microbiota of broilers exposed to daily 4-h elevated temperature during d 28 to 35. A total of 640-day-old Cobb male broiler chicks were randomly allocated to 32 floor pens in a 2 × 2 factorial arrangement that included ambient temperature (thermoneutral [TN] or heat stress [HS]) and dietary treatments (basal diet or Vit E + Se). Vit E and organic Se were added to the basal diet at the rate of 250 mg/kg and 1 mg/kg, respectively. Liver and jejunum tissue samples were taken on d 27 (1 bird/pen), d 28 and d 35 (2 birds/pen) from birds for qPCR analysis. Data were subjected to a 2-way ANOVA using the GLM procedure of JMP. Ileal contents were taken on d 27 and d 35 for microbial profiling. Microbiota data were analyzed in QIIME 2 and significance between treatments identified linear discriminant analysis effect size (LEfSe, P < 0.05). Dietary Vit E/Se significantly downregulated the mRNA levels of HSPs in liver and jejunal tissues of the HS-challenged birds both on d 28 and d 35. Moreover, mRNA abundance of TLR2, TNFα, IFNγ, IL-1β, IL-10, and iNOS in the liver were significantly downregulated in birds fed the Vit E/Se diet on d 35. However, dietary treatment had no significant impact on oxidative stress, immunity, and gut integrity related genes analyzed in jejunal tissues on d 28 and d 35, except downregulation of IFNγ on d 35 (P = 0.052). LEfSe analysis revealed that Lachnospiraceae FE2018 and Ruminococcaceae NK4A214 groups was enriched in the Vit E/Se birds on d 35. Moreover, PICRUSt analysis predicted significant functional differences among the treatment groups. In conclusion, dietary supplementation of Vit E/Se mitigated the negative effects of HS potentially via improving antioxidant status, regulating cytokine responses and modifying ileal microbiota and its function.
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Wang R, Deng Y, Zhang Y, Li X, Sun L, Deng Q, Liu Y, Gooneratne R, Li J. Modulation of Intestinal Barrier, Inflammatory Response, and Gut Microbiota by Pediococcus pentosaceus zy-B Alleviates Vibrio parahaemolyticus Infection in C57BL/6J Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1865-1877. [PMID: 35107008 DOI: 10.1021/acs.jafc.1c07450] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Modulation of the intestinal barrier, inflammation, and gut microbiota by Pediococcus pentosaceus zy-B (zy-B) in Vibrio parahaemolyticus (Vp)-infected C57BL/6J mice was studied. Mice intragastrically pretreated with 108 colony-forming units (CFU) zy-B significantly alleviated Vp infection as evidenced by maintaining body weight and reduced disease activity index score and intestine ratio. In addition, zy-B reduced the Vp load in the ileum and cecum, significantly reduced the load in the colon, prevented colonic atrophy, and strengthened mucosal integrity. Mechanistically, zy-B ameliorated intestinal barrier dysfunction by upregulating tight junction protein expression, which in turn reduced the lipopolysaccharide, d-lactic acid (d-LA), and diamine oxidase concentrations and downregulated the cannabinoid receptor 1 (CB1) and CB2 mRNA expressions. Moreover, zy-B systemically reduced inflammation by decreasing interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α levels, and increased interleukin-10 (IL-10), immunoglobulin M (IgM), and immunoglobulin G (IgG) levels in the colon and serum. Furthermore, zy-B markedly altered the gut microbiota composition by enriching Bifidobacterium, Akkermansia, and Lactobacillus in the colon. Overall, zy-B appears to act as a probiotic to alleviate Vp infection by protecting the intestinal barrier, reducing inflammation, and promoting the growth of "beneficial" gut microbiota.
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Affiliation(s)
- Rundong Wang
- College of Food Science, Southwest University, Chongqing 400715, China
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China
- College of Food Science and Engineering, Lingnan Normal University, Zhanjiang 524048, China
| | - Yijia Deng
- College of Food Science, Southwest University, Chongqing 400715, China
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China
| | - Yuhao Zhang
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xuepeng Li
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China
| | - Lijun Sun
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Qi Deng
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Ying Liu
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, Canterbury 7647, New Zealand
| | - Jianrong Li
- College of Food Science, Southwest University, Chongqing 400715, China
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China
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Pan P, Atkinson SN, Taylor B, Zhu H, Zhou D, Flejsierowicz P, Wang LS, Morse M, Liu C, Gunsolus IL, Chen X. Retinoic Acid Signaling Modulates Recipient Gut Barrier Integrity and Microbiota After Allogeneic Hematopoietic Stem Cell Transplantation in Mice. Front Immunol 2021; 12:749002. [PMID: 34759928 PMCID: PMC8573259 DOI: 10.3389/fimmu.2021.749002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/30/2021] [Indexed: 11/13/2022] Open
Abstract
Graft-versus-host disease (GVHD) remains a major complication after allogeneic hematopoietic stem cell transplantation (HSCT). An impaired intestinal epithelial barrier is an important component of GVHD pathogenesis. However, contributing host factors that modulate mucosal barrier integrity during GVHD are poorly defined. We hypothesized that vitamin A and retinoic acid (RA) exert positive impacts on maintaining intestinal barrier function after HSCT, thus preventing or dampening GVHD severity. Unexpectedly, we found that exogenous RA increased intestinal permeability of recipient mice after allogeneic HSCT. Serum bacterial endotoxin levels were significantly higher in GVHD mice fed a vitamin A-high (VAH) diet compared to those fed a vitamin A-normal (VAN) diet, indicating a more compromised intestinal barrier function. Furthermore, VAH mice showed more severe lung GVHD with increased donor T cell infiltration in this tissue and died significantly faster than VAN recipients. 16S rRNA sequencing of fecal samples revealed significant differences in the diversity and composition of gut microbiota between VAN and VAH transplant recipients. Collectively, we show that retinoic acid signaling may negatively impact intestinal barrier function during GVHD. Mild vitamin A supplementation is associated with increased lung GVHD and more profound gut dysbiosis. Micronutrients such as vitamin A could modulate complications of allogeneic HSCT, which may be mediated by shaping gut microbiota.
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Affiliation(s)
- Pan Pan
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Samantha N. Atkinson
- Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Brian Taylor
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Haojie Zhu
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Dian Zhou
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Philip Flejsierowicz
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Li-Shu Wang
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Matthew Morse
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Chen Liu
- Department of Pathology, Yale University School of Medicine, New Haven, CT, United States
| | - Ian L. Gunsolus
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Xiao Chen
- Division of Hematology & Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
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Pérez-Rodríguez L, Martínez-Blanco M, Lozano-Ojalvo D, Fontecha J, Molina E, Benedé S, López-Fandiño R. Triacylglycerides and Phospholipids from Egg Yolk Differently Influence the Immunostimulating Properties of Egg White Proteins. Nutrients 2021; 13:3301. [PMID: 34684302 PMCID: PMC8539141 DOI: 10.3390/nu13103301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/09/2021] [Accepted: 09/17/2021] [Indexed: 11/17/2022] Open
Abstract
As part of a whole egg, egg white proteins are embedded in a lipid matrix that could modify their presentation to the immune system and their allergenic properties. The present study examines the impact of the main egg lipid components, triacylglycerides and phospholipids, in the early events of sensitization to egg. To this end, BALB/c mice were exposed intragastrically to egg lipids and egg lipid fractions, alone and in mixtures with egg white proteins, and Th2-promoting and proinflammatory effects were investigated. Our results highlight that the egg lipid fraction is responsible for Th2 adjuvant effects and point at a different influence of triacylglycerides and phospholipids on the bioavailability and immunomodulating properties of egg white proteins. While triacylglycerides promote type 2 responses at the small intestine level, phospholipids reduce the solubility of EW proteins and induce Th2 skewing in lymphoid intestinal tissues, which may have a direct impact on the development of egg allergy.
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Affiliation(s)
- Leticia Pérez-Rodríguez
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain; (L.P.-R.); (M.M.-B.); (J.F.); (E.M.); (S.B.)
| | - Mónica Martínez-Blanco
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain; (L.P.-R.); (M.M.-B.); (J.F.); (E.M.); (S.B.)
| | - Daniel Lozano-Ojalvo
- Icahn School of Medicine at Mount Sinai, 1425 Madison Ave, 11-26, New York, NY 10029, USA;
| | - Javier Fontecha
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain; (L.P.-R.); (M.M.-B.); (J.F.); (E.M.); (S.B.)
| | - Elena Molina
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain; (L.P.-R.); (M.M.-B.); (J.F.); (E.M.); (S.B.)
| | - Sara Benedé
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain; (L.P.-R.); (M.M.-B.); (J.F.); (E.M.); (S.B.)
| | - Rosina López-Fandiño
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain; (L.P.-R.); (M.M.-B.); (J.F.); (E.M.); (S.B.)
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Pongkorpsakol P, Turner JR, Zuo L. Culture of Intestinal Epithelial Cell Monolayers and Their Use in Multiplex Macromolecular Permeability Assays for In Vitro Analysis of Tight Junction Size Selectivity. ACTA ACUST UNITED AC 2021; 131:e112. [PMID: 33175441 DOI: 10.1002/cpim.112] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tight junctions form a selectively permeable barrier that limits paracellular flux across epithelial-lined surfaces. Small molecules (less than ∼8 Å diameter) can traverse the junction via the size- and charge-selective, high-conductance pore pathway. In contrast, the low-conductance leak pathway accommodates larger macromolecules (up to ∼100 Å diameter) and is not charge-selective. Flux across the tight junction-independent, high-conductance, non-selective, unrestricted pathway occurs at sites of epithelial damage. Cytokines can regulate each of these pathways, but commonly used measures of barrier function cannot discriminate between tight junction regulation and epithelial damage. This article describes methods for culturing intestinal epithelial cell monolayers and assessing the impact of cytokine treatment on leak and unrestricted pathway permeabilities. © 2020 Wiley Periodicals LLC. Basic Protocol 1: Generation and culture of cell monolayers in Transwells Basic Protocol 2: Assessment of cytokine (IFNγ and TNF) treatment effects on barrier function Support Protocol: Immunofluorescent staining of monolayers Basic Protocol 3: Multiplex flux assay.
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Affiliation(s)
- Pawin Pongkorpsakol
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jerrold R Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Li Zuo
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.,Laboratory of Molecular Biochemistry, Anhui Medical University, Anhui, China
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Lei H, Crawford MS, McCole DF. JAK-STAT Pathway Regulation of Intestinal Permeability: Pathogenic Roles and Therapeutic Opportunities in Inflammatory Bowel Disease. Pharmaceuticals (Basel) 2021; 14:840. [PMID: 34577540 PMCID: PMC8466350 DOI: 10.3390/ph14090840] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 12/15/2022] Open
Abstract
The epithelial barrier forms the interface between luminal microbes and the host immune system and is the first site of exposure to many of the environmental factors that trigger disease activity in chronic inflammatory bowel disease (IBD). Disruption of the epithelial barrier, in the form of increased intestinal permeability, is a feature of IBD and other inflammatory diseases, including celiac disease and type 1 diabetes. Variants in genes that regulate or belong to the JAK-STAT signaling pathway are associated with IBD risk. Inhibitors of the JAK-STAT pathway are now effective therapeutic options in IBD. This review will discuss emerging evidence that JAK inhibitors can be used to improve defects in intestinal permeability and how this plays a key role in resolving intestinal inflammation.
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Affiliation(s)
| | | | - Declan F. McCole
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, USA; (H.L.); (M.S.C.)
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Tuganbaev T, Honda K. Non-zero-sum microbiome immune system interactions. Eur J Immunol 2021; 51:2120-2136. [PMID: 34242413 PMCID: PMC8457126 DOI: 10.1002/eji.202049065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/01/2021] [Accepted: 07/08/2021] [Indexed: 12/14/2022]
Abstract
Fundamental asymmetries between the host and its microbiome in enzymatic activities and nutrient storage capabilities have promoted mutualistic adaptations on both sides. As a result, the enteric immune system has evolved so as not to cause a zero‐sum sterilization of non‐self, but rather achieve a non‐zero‐sum self‐reinforcing cooperation with its evolutionary partner the microbiome. In this review, we attempt to integrate the accumulated knowledge of immune—microbiome interactions into an evolutionary framework and trace the pattern of positive immune—microbiome feedback loops across epithelial, enteric nervous system, innate, and adaptive immune circuits. Indeed, the immune system requires commensal signals for its development and function, and reciprocally protects the microbiome from nutrient shortage and pathogen outgrowth. In turn, a healthy microbiome is the result of immune system curatorship as well as microbial ecology. The paradigms of host–microbiome asymmetry and the cooperative nature of their interactions identified in the gut are applicable across all tissues influenced by microbial activities. Incorporation of immune system influences into models of microbiome ecology will be a step forward toward defining what constitutes a healthy human microbiome and guide discoveries of novel host–microbiome mutualistic adaptations that may be harnessed for the promotion of human health.
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Affiliation(s)
- Timur Tuganbaev
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Kenya Honda
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan.,RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
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Apostolou A, Panchakshari RA, Banerjee A, Manatakis DV, Paraskevopoulou MD, Luc R, Abu-Ali G, Dimitriou A, Lucchesi C, Kulkarni G, Maulana TI, Kasendra M, Kerns JS, Bleck B, Ewart L, Manolakos ES, Hamilton GA, Giallourakis C, Karalis K. A Novel Microphysiological Colon Platform to Decipher Mechanisms Driving Human Intestinal Permeability. Cell Mol Gastroenterol Hepatol 2021; 12:1719-1741. [PMID: 34284165 PMCID: PMC8551844 DOI: 10.1016/j.jcmgh.2021.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND & AIMS The limited availability of organoid systems that mimic the molecular signatures and architecture of human intestinal epithelium has been an impediment to allowing them to be harnessed for the development of therapeutics as well as physiological insights. We developed a microphysiological Organ-on-Chip (Emulate, Inc, Boston, MA) platform designed to mimic properties of human intestinal epithelium leading to insights into barrier integrity. METHODS We combined the human biopsy-derived leucine-rich repeat-containing G-protein-coupled receptor 5-positive organoids and Organ-on-Chip technologies to establish a micro-engineered human Colon Intestine-Chip (Emulate, Inc, Boston, MA). We characterized the proximity of the model to human tissue and organoids maintained in suspension by RNA sequencing analysis, and their differentiation to intestinal epithelial cells on the Colon Intestine-Chip under variable conditions. Furthermore, organoids from different donors were evaluated to understand variability in the system. Our system was applied to understanding the epithelial barrier and characterizing mechanisms driving the cytokine-induced barrier disruption. RESULTS Our data highlight the importance of the endothelium and the in vivo tissue-relevant dynamic microenvironment in the Colon Intestine-Chip in the establishment of a tight monolayer of differentiated, polarized, organoid-derived intestinal epithelial cells. We confirmed the effect of interferon-γ on the colonic barrier and identified reorganization of apical junctional complexes, and induction of apoptosis in the intestinal epithelial cells as mediating mechanisms. We show that in the human Colon Intestine-Chip exposure to interleukin 22 induces disruption of the barrier, unlike its described protective role in experimental colitis in mice. CONCLUSIONS We developed a human Colon Intestine-Chip platform and showed its value in the characterization of the mechanism of action of interleukin 22 in the human epithelial barrier. This system can be used to elucidate, in a time- and challenge-dependent manner, the mechanism driving the development of leaky gut in human beings and to identify associated biomarkers.
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Affiliation(s)
- Athanasia Apostolou
- Emulate, Inc, Boston, Massachusetts; Department of Medicine, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | | | | | | | - Galeb Abu-Ali
- Takeda Pharmaceuticals, Ltd, Cambridge, Massachusetts
| | | | | | | | - Tengku Ibrahim Maulana
- Emulate, Inc, Boston, Massachusetts; Faculty of Energy, Process and Bioengineering, Department of Bioengineering, University of Stuttgart, Stuttgart, Germany
| | | | | | - Bertram Bleck
- Takeda Pharmaceuticals, Ltd, Cambridge, Massachusetts
| | | | - Elias S Manolakos
- Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens, Greece; Northeastern University, Boston, Massachusetts
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Targeting JAK/STAT signaling pathways in treatment of inflammatory bowel disease. Inflamm Res 2021; 70:753-764. [PMID: 34212215 DOI: 10.1007/s00011-021-01482-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2021] [Indexed: 01/05/2023] Open
Abstract
Janus kinase/signal transduction and transcriptional activator (JAK/STAT) signaling pathway is a transport hub for cytokine secretion and exerts its effects. The activation of JAK/STAT signaling pathway is essential for the regulation of inflammatory responses. Inappropriate activation or deletion of JAK/STAT signaling pathway is the initiator of the inflammatory response. JAK/STAT signaling pathway has been demonstrated to be involved in the process of innate and adaptive immune response to inflammatory bowel disease (IBD). In this review, we discuss the role of the JAK/STAT signaling pathway in the regulation of different cells in IBD, as well as new findings on the involvement of the JAK/STAT signaling pathway in the regulation of the intestinal immune response. The current status of JAK inhibitors in the treatment of IBD is summarized as well. This review highlights natural remedies that can serve as potential JAK inhibitors. These phytochemicals may be useful in the identification of precursor compounds in the process of designing and developing novel JAK inhibitors.
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40
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Huang J, Huang J, Li Y, Wang Y, Wang F, Qiu X, Liu X, Li H. Sodium Alginate Modulates Immunity, Intestinal Mucosal Barrier Function, and Gut Microbiota in Cyclophosphamide-Induced Immunosuppressed BALB/c Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7064-7073. [PMID: 34152142 DOI: 10.1021/acs.jafc.1c02294] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
This study investigated the protective effects of sodium alginate (SA) on the gut microbiota, immunity, and intestinal mucosal barrier function in cyclophosphamide-induced immunosuppressed BALB/c mice. SA alleviated spleen tissue damage and restored impaired immune functions, such as increasing the immune organ index, decreasing splenic T lymphocytes, and markedly increasing the secretion of serum immunoglobulins and cytokines in immunosuppressed mice. In addition, SA reversed the intestinal mucosal injury and increased the intestinal permeability by upregulating the expression of tight junction proteins. Moreover, SA decreased gut inflammation by reducing serum d-lactic acid (D-LA) and lipopolysaccharide (LPS) concentrations and downregulating toll-like receptor 4 (Tlr4) and mitogen-activated protein kinase (Mapk) pathway expression. Furthermore, SA significantly increased the abundance of beneficial bacteria (Lactobacillus, Roseburia, and Lachnospiraceae NK4A136) and decreased pathogenic bacteria (Helicobacter, Peptococcus, and Tyzzerella) in the intestine as determined by 16S rRNA gene high-throughput sequencing. In conclusion, our study provides a scientific basis for SA as a functional food in modulating gut microbiota and protecting against intestinal mucosal injury and indicates that SA has potential application for enhancing immunity.
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Affiliation(s)
- Juan Huang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, PR China
| | - Jinli Huang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, PR China
| | - Yao Li
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, PR China
| | - Yilu Wang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, PR China
| | - Fahe Wang
- State Key Laboratory of Bioactive Seaweed Substances, Qingdao Bright Moon Seaweed Group Co.,, Ltd., 266400 Qingdao, PR China
| | - Xia Qiu
- State Key Laboratory of Bioactive Seaweed Substances, Qingdao Bright Moon Seaweed Group Co.,, Ltd., 266400 Qingdao, PR China
| | - Xvliang Liu
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, PR China
| | - Huajun Li
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, PR China
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41
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Shashikanth N, Rizzo HE, Pongkorpsakol P, Heneghan JF, Turner JR. Electrophysiologic Analysis of Tight Junction Size and Charge Selectivity. Curr Protoc 2021; 1:e143. [PMID: 34106526 DOI: 10.1002/cpz1.143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Tight junctions form selectively permeable barriers that limit paracellular flux across epithelial-lined surfaces. Rather than being absolute barriers, tight junctions in many tissues allow ions, water, and other small molecules to cross on the basis of size and charge selectivity via the high-capacity pore pathway. Most probes currently used to assess tight junction permeability exceed the maximum size capacity of the pore pathway. As a result, available analytical tools have generally been limited to measurement of transepithelial electrical resistances. These provide no information regarding size selectivity and, therefore, cannot be used to distinguish between the pore pathway and the leak pathway, a low-capacity route that accommodates larger macromolecules. This article describes use of dilution potential and bi-ionic potential measurements for analysis of tight junction size and charge selectivity within monolayers of cultured epithelial cells. © 2021 Wiley Periodicals LLC. Basic Protocol 1: Culture of MDCK monolayers on semipermeable supports and induction of claudin-2 expression Basic Protocol 2: Configuring voltage/current clamp and other equipment Basic Protocol 3: Measuring dilution and bi-ionic potentials Basic Protocol 4: Calculating ion permeabilities and pore diameter Support Protocol: Preparation of agar bridges and electrophysiology rig setup.
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Affiliation(s)
- Nitesh Shashikanth
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Heather E Rizzo
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Pawin Pongkorpsakol
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.,Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, Thailand
| | - John F Heneghan
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jerrold R Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
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Deng M, Hu J, Tong R, Guo H, Li X, Liu Y. miR-452-5p regulates the responsiveness of intestinal epithelial cells in inflammatory bowel disease through Mcl-1. Exp Ther Med 2021; 22:813. [PMID: 34131436 PMCID: PMC8193216 DOI: 10.3892/etm.2021.10245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 03/17/2021] [Indexed: 12/15/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) are chronic immune disorders that occur in the intestinal tract. Previous studies have revealed that intestinal epithelial cells (IECs) play critical roles in the development of IBDs, and therapies targeting IECs hold great potential for the treatment of IBDs. However, the roles of microRNAs (miRs) in the regulation of IEC properties and whether they can be used as targets for IEC regulation and IBD treatment are largely unknown. The aim of the present study was to investigate the role of the miR-452-5p/Mcl-1 axis in the regulation of the properties of IECs during the pathology of IBD. A dextran sulfate sodium-induced mouse model of ulcerative colitis (UC) and an in vitro lipopolysaccharide-stimulated IEC-6 cell model were investigated. The results revealed that miR-452-5p expression in the IECs of the mice increased significantly upon UC induction, and the knockdown of miR-452-5p alleviated the IBD symptoms. Furthermore, the suppression of miR-452-5p downregulated the expression of the inflammatory cytokines IL-6, IL-8 and TNFα, and upregulated the expression of intestinal barrier-associated molecules, namely occludin, zona occludens 1 and mucin-2 in IECs in vitro and in vivo. Notably, the results indicated that miR-452-5p modulated the responses of IECs by negatively regulating the expression of Mcl-1, as the knockdown of Mcl-1 abrogated the effects of miR-452-5p suppression on IECs. The present study suggested that miR-452-5p regulated the responsiveness of IECs to influence the development of UC in an Mcl-1-dependent manner. These observations provide important information to improve the understanding of IBD pathogenesis and indicate that targeting the miR-452-5p-Mcl-1 signaling axis in IECs holds potential for IBD treatment.
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Affiliation(s)
- Ming Deng
- Department of Anorectal Surgery, People's Hospital of Dongxihu District, Wuhan, Hubei 430040, P.R. China
| | - Jianglin Hu
- Department of Anorectal Surgery, People's Hospital of Dongxihu District, Wuhan, Hubei 430040, P.R. China
| | - Rui Tong
- Department of Anorectal Surgery, People's Hospital of Dongxihu District, Wuhan, Hubei 430040, P.R. China
| | - Hongming Guo
- Department of Anorectal Surgery, People's Hospital of Dongxihu District, Wuhan, Hubei 430040, P.R. China
| | - Xuehui Li
- Department of Anorectal Surgery, People's Hospital of Dongxihu District, Wuhan, Hubei 430040, P.R. China
| | - Yan Liu
- Department of Gastrointestinal Surgery, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Patnaude L, Mayo M, Mario R, Wu X, Knight H, Creamer K, Wilson S, Pivorunas V, Karman J, Phillips L, Dunstan R, Kamath RV, McRae B, Terrillon S. Mechanisms and regulation of IL-22-mediated intestinal epithelial homeostasis and repair. Life Sci 2021; 271:119195. [PMID: 33581125 DOI: 10.1016/j.lfs.2021.119195] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/27/2021] [Accepted: 02/03/2021] [Indexed: 12/19/2022]
Abstract
AIMS Ulcerative colitis and Crohn's disease, collectively known as inflammatory bowel disease (IBD), are chronic inflammatory disorders of the intestine for which key elements in disease initiation and perpetuation are defects in epithelial barrier integrity. Achieving mucosal healing is essential to ameliorate disease outcome and so new therapies leading to epithelial homeostasis and repair are under investigation. This study was designed to determine the mechanisms by which IL-22 regulates intestinal epithelial cell function. MAIN METHODS Human intestinal organoids and resections, as well as mice were used to evaluate the effect of IL-22 on stem cell expansion, proliferation and expression of mucus components. IL-22 effect on barrier function was assessed in polarized T-84 cell monolayers. Butyrate co-treatments and organoid co-cultures with immune cells were performed to monitor the impact of microbial-derived metabolites and inflammatory environments on IL-22 responses. KEY FINDINGS IL-22 led to epithelial stem cell expansion, proliferation, barrier dysfunction and anti-microbial peptide production in human and mouse models evaluated. IL-22 also altered the mucus layer by inducing an increase in membrane mucus but a decrease in secreted mucus and goblet cell content. IL-22 had the same effect on anti-microbial peptides and membrane mucus in both healthy and IBD human samples. In contrast, this IL-22-associated epithelial phenotype was different when treatments were performed in presence of butyrate and organoids co-cultured with immune cells. SIGNIFICANCE Our data indicate that IL-22 promotes epithelial regeneration, innate defense and membrane mucus production, strongly supporting the potential clinical utility of IL-22 as a mucosal healing therapy in IBD.
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Affiliation(s)
- Lori Patnaude
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Martha Mayo
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Regina Mario
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Xiaoming Wu
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Heather Knight
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Kelly Creamer
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Sarah Wilson
- Abbvie, Cambridge Research Center, 200 Sidney Street, Cambridge, MA 02139, USA
| | - Valerie Pivorunas
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Jozsef Karman
- Abbvie, Cambridge Research Center, 200 Sidney Street, Cambridge, MA 02139, USA
| | - Lucy Phillips
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Robert Dunstan
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Rajesh V Kamath
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Bradford McRae
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA
| | - Sonia Terrillon
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA 01605, USA.
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Delbue D, Lebenheim L, Cardoso-Silva D, Dony V, Krug SM, Richter JF, Manna S, Muñoz M, Wolk K, Heldt C, Heimesaat MM, Sabat R, Siegmund B, Schumann M. Reprogramming Intestinal Epithelial Cell Polarity by Interleukin-22. Front Med (Lausanne) 2021; 8:656047. [PMID: 33912578 PMCID: PMC8072225 DOI: 10.3389/fmed.2021.656047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 03/10/2021] [Indexed: 12/25/2022] Open
Abstract
Background: Interleukin-22 (IL-22) impacts the integrity of intestinal epithelia and has been associated with the development of colitis-associated cancer and inflammatory bowel diseases (IBD). Previous data suggest that IL-22 protects the mucosal barrier and promotes wound healing and barrier defect. We hypothesized, that IL-22 modulates cell polarity of intestinal epithelial cells (IECs) acting on tight junction assembly. The aim of the study was to investigate IL-22-dependent mechanisms in the reprogramming of intestinal epithelia. Methods: IECs were exposed to IL-22 at various concentrations. IECs in Matrigel® were grown to 3-dimensional cysts in the presence or absence of IL-22 and morphology and expression of polarity proteins were analyzed by confocal microscopy. Epithelial cell barrier (TER and sandwich assay) and TJ assembly analysis (calcium-switch assay) were performed. TJ and cell polarity protein expression were assessed by western blotting and confocal microscopy. Cell migration and invasion assays were performed. Induction of epithelial-mesenchymal transition (EMT) was assessed by RT-qPCR analysis and western blotting. Signaling pathway analyses were performed by phosphoblotting and functional assays after blocking STAT3 and ERK signaling pathways. Using the toxoplasma-model of terminal ileitis, IL-22-knock-out mice were compared to wild-type littermates, analyzed for barrier function using one-path-impedance-analysis and macromolecular flux (H3-mannitol, Ussing-chambers). Results: IECs exhibited a barrier defect after IL-22 exposure. TJ protein distribution and expression were severely impaired. Delayed recovery in the calcium-switch assay was observed suggesting a defect in TJ assembly. Analyzing the 3D-cyst model, IL-22 induced multi-lumen and aberrant cysts, and altered the localization of cell polarity proteins. Cell migration and invasion was caused by IL-22 as well as induction of EMT. Interestingly, only inhibition of the MAPK pathway, rescued the TJal barrier defect, while blocking STAT3 was relevant for cell survival. In addition, ileal mucosa of IL-22 deficient mice was protected from the barrier defect seen in Toxoplasma gondii-induced ileitis in wild type mice shown by significantly higher Re values and correspondingly lower macromolecule fluxes. Conclusion: IL-22 impairs intestinal epithelial cell barrier by inducing EMT, causing defects in epithelial cell polarity and increasing cell motility and cell invasion. IL-22 modulates TJ protein expression and mediates tight junctional (TJal) barrier defects via ERK pathway.
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Affiliation(s)
- Deborah Delbue
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Lydia Lebenheim
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Danielle Cardoso-Silva
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Violaine Dony
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Susanne M Krug
- Institute of Clinical Physiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Jan F Richter
- Institute for Anatomy II, University of Jena, Jena, Germany
| | - Subhakankha Manna
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Melba Muñoz
- Department of Microbiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.,Department for Dermatology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Kerstin Wolk
- Department for Dermatology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Dermatology, Venereology and Allergology, Psoriasis Research and Treatment Center, Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Claudia Heldt
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Markus M Heimesaat
- Department of Microbiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Robert Sabat
- Department for Dermatology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Dermatology, Venereology and Allergology, Psoriasis Research and Treatment Center, Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Britta Siegmund
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Michael Schumann
- Department for Gastroenterology, Rheumatology and Infectious Diseases, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
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Díez-Sainz E, Lorente-Cebrián S, Aranaz P, Riezu-Boj JI, Martínez JA, Milagro FI. Potential Mechanisms Linking Food-Derived MicroRNAs, Gut Microbiota and Intestinal Barrier Functions in the Context of Nutrition and Human Health. Front Nutr 2021; 8:586564. [PMID: 33768107 PMCID: PMC7985180 DOI: 10.3389/fnut.2021.586564] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 02/15/2021] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are non-coding single-stranded RNA molecules from 18 to 24 nucleotides that are produced by prokaryote and eukaryote organisms, which play a crucial role in regulating gene expression through binding to their mRNA targets. MiRNAs have acquired special attention for their potential in cross kingdom communication, notably food-derived microRNAs (xenomiRs), which could have an impact on microorganism and mammal physiology. In this review, we mainly aim to deal with new perspectives on: (1) The mechanism by which food-derived xenomiRs (mainly dietary plant xenomiRs) could be incorporated into humans through diet, in a free form, associated with proteins or encapsulated in exosome-like nanoparticles. (2) The impact of dietary plant-derived miRNAs in modulating gut microbiota composition, which in turn, could regulate intestinal barrier permeability and therefore, affect dietary metabolite, postbiotics or food-derived miRNAs uptake efficiency. Individual gut microbiota signature/composition could be also involved in xenomiR uptake efficiency through several mechanisms such us increasing the bioavailability of exosome-like nanoparticles miRNAs. (3) Gut microbiota dysbiosis has been proposed to contribute to disease development by affecting gut epithelial barrier permeability. For his reason, the availability and uptake of dietary plant xenomiRs might depend, among other factors, on this microbiota-related permeability of the intestine. We hypothesize and critically review that xenomiRs-microbiota interaction, which has been scarcely explored yet, could contribute to explain, at least in part, the current disparity of evidences found dealing with dietary miRNA uptake and function in humans. Furthermore, dietary plant xenomiRs could be involved in the establishment of the multiple gut microenvironments, in which microorganism would adapt in order to optimize the resources and thrive in them. Additionally, a particular xenomiR could preferentially accumulate in a specific region of the gastrointestinal tract and participate in the selection and functions of specific gut microbial communities.
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Affiliation(s)
- Ester Díez-Sainz
- Department of Nutrition, Food Science and Physiology/Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Silvia Lorente-Cebrián
- Department of Nutrition, Food Science and Physiology/Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Paula Aranaz
- Department of Nutrition, Food Science and Physiology/Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - José I. Riezu-Boj
- Department of Nutrition, Food Science and Physiology/Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - J. Alfredo Martínez
- Department of Nutrition, Food Science and Physiology/Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Fermín I. Milagro
- Department of Nutrition, Food Science and Physiology/Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
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Pang L, Huynh J, Alorro MG, Li X, Ernst M, Chand AL. STAT3 Signalling via the IL-6ST/gp130 Cytokine Receptor Promotes Epithelial Integrity and Intestinal Barrier Function during DSS-Induced Colitis. Biomedicines 2021; 9:biomedicines9020187. [PMID: 33673239 PMCID: PMC7918037 DOI: 10.3390/biomedicines9020187] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/08/2021] [Accepted: 02/08/2021] [Indexed: 12/22/2022] Open
Abstract
The intestinal epithelium provides a barrier against commensal and pathogenic microorganisms. Barrier dysfunction promotes chronic inflammation, which can drive the pathogenesis of inflammatory bowel disease (IBD) and colorectal cancer (CRC). Although the Signal Transducer and Activator of Transcription-3 (STAT3) is overexpressed in both intestinal epithelial cells and immune cells in IBD patients, the role of the interleukin (IL)-6 family of cytokines through the shared IL-6ST/gp130 receptor and its associated STAT3 signalling in intestinal barrier integrity is unclear. We therefore investigated the role of STAT3 in retaining epithelial barrier integrity using dextran sulfate sodium (DSS)-induced colitis in two genetically modified mouse models, to either reduce STAT1/3 activation in response to IL-6 family cytokines with a truncated gp130∆STAT allele (GP130∆STAT/+), or by inducing short hairpin-mediated knockdown of Stat3 (shStat3). Here, we show that mice with reduced STAT3 activity are highly susceptible to DSS-induced colitis. Mechanistically, the IL-6/gp130/STAT3 signalling cascade orchestrates intestinal barrier function by modulating cytokine secretion and promoting epithelial integrity to maintain a defence against bacteria. Our study also identifies a crucial role of STAT3 in controlling intestinal permeability through tight junction proteins. Thus, therapeutically targeting the IL-6/gp130/STAT3 signalling axis to promote barrier function may serve as a treatment strategy for IBD patients.
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Affiliation(s)
- Lokman Pang
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Heidelberg, VIC 3084, Australia; (J.H.); (M.G.A.); (M.E.)
- Correspondence: (L.P.); (A.L.C.)
| | - Jennifer Huynh
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Heidelberg, VIC 3084, Australia; (J.H.); (M.G.A.); (M.E.)
| | - Mariah G. Alorro
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Heidelberg, VIC 3084, Australia; (J.H.); (M.G.A.); (M.E.)
| | - Xia Li
- Department of Mathematics and Statistics, La Trobe University, Bundoora, VIC 3083, Australia;
| | - Matthias Ernst
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Heidelberg, VIC 3084, Australia; (J.H.); (M.G.A.); (M.E.)
| | - Ashwini L. Chand
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Heidelberg, VIC 3084, Australia; (J.H.); (M.G.A.); (M.E.)
- Correspondence: (L.P.); (A.L.C.)
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Qiu Q, Lin Y, Ma Y, Li X, Liang J, Chen Z, Liu K, Huang Y, Luo H, Huang R, Luo L. Exploring the Emerging Role of the Gut Microbiota and Tumor Microenvironment in Cancer Immunotherapy. Front Immunol 2021; 11:612202. [PMID: 33488618 PMCID: PMC7817884 DOI: 10.3389/fimmu.2020.612202] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/23/2020] [Indexed: 12/15/2022] Open
Abstract
The tumor microenvironment (TME) is a complex ecosystem, which includes many different types of cells, abnormal vascular systems, and immunosuppressive cytokines. TME serves an important function in tumor tolerance and escapes from immune surveillance leading to tumor progression. Indeed, there is increasing evidence that gut microbiome is associated with cancer in a variety of ways, as specific microbial signatures are known to promote cancer development and influence safety, tolerability, and efficacy of therapies. Studies over the past five years have shown that the composition of the intestinal microbiota has a significant impact on the efficacy of anticancer immunosurveillance, which contribute to the therapeutic activity of cancer immunotherapies based on targeting cytotoxic T lymphocyte protein 4 (CTLA-4) or programmed cell death protein 1 (PD-1)-programmed cell death 1 ligand 1 (PD-L1) axis. In this review, we mainly discuss the impact of TME on cancer and immunotherapy through immune-related mechanisms. We subsequently discuss the influence of gut microbiota and its metabolites on the host immune system and the formation of TME. In addition, this review also summarizes the latest research on the role of gut microbiota in cancer immunotherapy.
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Affiliation(s)
- Qin Qiu
- Graduate School, Guangdong Medical University, Zhanjiang, China
| | - Yuqi Lin
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yucui Ma
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Xiaoling Li
- Animal Experiment Center, Guangdong Medical University, Zhanjiang, China
| | - Juan Liang
- Graduate School, Guangdong Medical University, Zhanjiang, China
| | - Zhiyan Chen
- The First Clinical College, Guangdong Medical University, Zhanjiang, China
| | - Kaifeng Liu
- The First Clinical College, Guangdong Medical University, Zhanjiang, China
| | - Yuge Huang
- Department of Pediatrics, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hui Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Riming Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China.,The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China
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Ledwaba SE, Costa DVS, Bolick DT, Giallourou N, Medeiros PHQS, Swann JR, Traore AN, Potgieter N, Nataro JP, Guerrant RL. Enteropathogenic Escherichia coli Infection Induces Diarrhea, Intestinal Damage, Metabolic Alterations, and Increased Intestinal Permeability in a Murine Model. Front Cell Infect Microbiol 2020; 10:595266. [PMID: 33392105 PMCID: PMC7773950 DOI: 10.3389/fcimb.2020.595266] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022] Open
Abstract
Enteropathogenic E. coli (EPEC) are recognized as one of the leading bacterial causes of infantile diarrhea worldwide. Weaned C57BL/6 mice pretreated with antibiotics were challenged orally with wild-type EPEC or escN mutant (lacking type 3 secretion system) to determine colonization, inflammatory responses and clinical outcomes during infection. Antibiotic disruption of intestinal microbiota enabled efficient colonization by wild-type EPEC resulting in growth impairment and diarrhea. Increase in inflammatory biomarkers, chemokines, cellular recruitment and pro-inflammatory cytokines were observed in intestinal tissues. Metabolomic changes were also observed in EPEC infected mice with changes in tricarboxylic acid (TCA) cycle intermediates, increased creatine excretion and shifts in gut microbial metabolite levels. In addition, by 7 days after infection, although weights were recovering, EPEC-infected mice had increased intestinal permeability and decreased colonic claudin-1 levels. The escN mutant colonized the mice with no weight loss or increased inflammatory biomarkers, showing the importance of the T3SS in EPEC virulence in this model. In conclusion, a murine infection model treated with antibiotics has been developed to mimic clinical outcomes seen in children with EPEC infection and to examine potential roles of selected virulence traits. This model can help in further understanding mechanisms involved in the pathogenesis of EPEC infections and potential outcomes and thus assist in the development of potential preventive or therapeutic interventions.
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Affiliation(s)
- Solanka E. Ledwaba
- Department of Microbiology, University of Venda, Thohoyandou, South Africa
| | - Deiziane V. S. Costa
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | - David T. Bolick
- Center for Global Health, Division of Infectious Disease and International Health, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Natasa Giallourou
- Faculty of Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College, London, England
| | | | - Jonathan R. Swann
- Faculty of Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College, London, England
| | - Afsatou N. Traore
- Department of Microbiology, University of Venda, Thohoyandou, South Africa
| | - Natasha Potgieter
- Department of Microbiology, University of Venda, Thohoyandou, South Africa
| | - James P. Nataro
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Richard L. Guerrant
- Center for Global Health, Division of Infectious Disease and International Health, University of Virginia School of Medicine, Charlottesville, VA, United States
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Yu X, Vargas J, Green PH, Bhagat G. Innate Lymphoid Cells and Celiac Disease: Current Perspective. Cell Mol Gastroenterol Hepatol 2020; 11:803-814. [PMID: 33309944 PMCID: PMC7851184 DOI: 10.1016/j.jcmgh.2020.12.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/15/2022]
Abstract
Celiac disease (CD) is a common autoimmune disorder triggered by the ingestion of gluten in genetically susceptible individuals. Although the mechanisms underlying gliadin-mediated activation of adaptive immunity in CD have been well-characterized, regulation of innate immune responses and the functions of certain immune cell populations within the epithelium and lamina propria are not well-understood at present. Innate lymphoid cells (ILCs) are types of innate immune cells that have lymphoid morphology, lack antigen-specific receptors, and play important roles in tissue homeostasis, inflammation, and protective immune responses against pathogens. Information regarding the diversity and functions of ILCs in lymphoid organs and at mucosal sites has grown over the past decade, and roles of different ILC subsets in the pathogenesis of some inflammatory intestinal diseases have been proposed. However, our understanding of the contribution of ILCs toward the initiation and progression of CD is still limited. In this review, we discuss current pathophysiological aspects of ILCs within the gastrointestinal tract, findings of recent investigations characterizing ILC alterations in CD and refractory CD, and suggest avenues for future research.
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Affiliation(s)
- Xuechen Yu
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York
| | - Justin Vargas
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York
| | - Peter H.R. Green
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York
| | - Govind Bhagat
- Department of Medicine, Celiac Disease Center, Columbia University Irving Medical Center, New York, New York,Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York,Correspondence Address correspondence to: Govind Bhagat, MD, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 630 West 168th Street, VC 14-228, New York, New York 10032. fax: (212) 305-2301.
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Pavlenko D, Funahashi H, Sakai K, Hashimoto T, Lozada T, Yosipovitch G, Akiyama T. IL-23 modulates histamine-evoked itch and responses of pruriceptors in mice. Exp Dermatol 2020; 29:1209-1215. [PMID: 33010057 DOI: 10.1111/exd.14206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/14/2020] [Accepted: 09/23/2020] [Indexed: 12/17/2023]
Abstract
Accumulating evidence has highlighted the essential roles of cytokines in itch processing. Although IL-23 and Th17 cytokines are elevated in inflammatory skin disorders, their role in itch is unknown. Here, we investigated the role of IL-23 and IL-17A in itch response using an in vitro calcium imaging of mouse dorsal root ganglion (DRG) neurons and an in vivo behaviour test. Calcium imaging studies revealed that a few DRG neurons (~5%) responded to either IL-23 or IL-17A. Pretreatment cells with IL-23 significantly reduced calcium responses to histamine and capsaicin but not chloroquine. Behaviour experiments showed neither IL-23 nor IL-17A evoked scratching. IL-23 significantly decreased histamine-evoked scratching without affecting chloroquine-evoked scratching. There was no difference in scratching between IL-17A- and vehicle-treated groups. These results indicate that IL-23 might play a role in regulating histaminergic itch via modulation of TRPV1 activity.
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Affiliation(s)
- Darya Pavlenko
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Hideki Funahashi
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Psychiatry, University of Miyazaki, Kiyotake, Japan
| | - Kent Sakai
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Takashi Hashimoto
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Taisa Lozada
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Gil Yosipovitch
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Tasuku Akiyama
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
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