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Lerchova T, Størdal K, Andersson B, Ludvigsson J, Mårild K. Atopic Dermatitis in Early Childhood and Risk of Inflammatory Bowel Disease: A Scandinavian Birth Cohort Study. J Pediatr 2024; 270:114027. [PMID: 38521452 DOI: 10.1016/j.jpeds.2024.114027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/14/2024] [Accepted: 03/17/2024] [Indexed: 03/25/2024]
Abstract
OBJECTIVE To examine the association between early-life atopic manifestations and later risk of inflammatory bowel disease (IBD), for which prospective data are scarce. STUDY DESIGN The population-based All Babies in Southeast Sweden (ABIS) and Norwegian Mother, Father, and Child (MoBa) cohorts follow children from birth (ABIS 1997-1999; MoBa 2000-2009) to the end of 2021. Based on validated questionnaires, parents prospectively reported information on asthma, food-related allergic symptoms, atopic dermatitis, and allergic rhinitis by age 3. IBD was defined by ≥ 2 diagnostic records in the national health registries. Cox regression estimated hazard ratios adjusted (aHRs) for parental IBD, atopy, education level, smoking habits, and national origin. Cohort-specific estimates were pooled using a random-effects model. RESULTS We compiled data on 83 311 children (ABIS, n = 9041; MoBa, n = 74 270). In over 1 174 756 person-years of follow-up, 301 participants were diagnosed with IBD. Children with atopic dermatitis at age 3 had an increased risk of IBD (pooled aHR = 1.46 [95% CI = 1.13-1.88]), Crohn's disease (pooled aHR = 1.53 [95%CI = 1.04-2.26]), and ulcerative colitis (pooled aHR = 1.78 [95%CI = 1.15-2.75]). Conversely, any atopic manifestation by age 3 was not associated with IBD (pooled aHR = 1.20 [95%CI = 0.95-1.52]), nor were analyses specifically focused on early-life food-related allergic symptoms, asthma, and allergic rhinitis. CONCLUSION While atopic manifestations in early childhood were overall not associated with IBD, children with atopic dermatitis specifically were at increased risk of developing IBD, suggesting shared etiologic traits; these findings might be useful in identifying at-risk individuals for IBD.
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Affiliation(s)
- Tereza Lerchova
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Ketil Størdal
- Department of Pediatric Research, Faculty of Medicine, University of Oslo, Oslo, Norway; Children's Center, Oslo University Hospital, Oslo, Norway
| | - Björn Andersson
- Bioinformatics and Data Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Johnny Ludvigsson
- Crown Princess Victoria Children's Hospital, Linköping, Sweden; Division of Pediatrics, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Karl Mårild
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Pediatrics, Queen Silvia Children's Hospital, Gothenburg, Sweden
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Fietz SA, Kalusa M, Jergens AE, Sahoo DK, Stewart T, Heilmann RM. Ultrastructural changes in chronic inflammatory enteropathies-a comparison between dogs and humans. Front Cell Dev Biol 2024; 12:1379714. [PMID: 38872928 PMCID: PMC11173093 DOI: 10.3389/fcell.2024.1379714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/24/2024] [Indexed: 06/15/2024] Open
Abstract
Chronic inflammatory enteropathies (CIEs) are an important group of diseases in dogs and involve complex pathogenetic aspects. Endoscopy and histopathology are vital for documenting the disease but are less useful for subclassifying CIEs and predicting the response to treatment. However, healing of the mucosal disease process (deep remission) and ultrastructural evaluation of the mucosa have received little attention in canine CIE. Given that canine CIE shares many similarities with inflammatory bowel diseases (IBDs) in human patients-and presents a good spontaneous disease model for human IBD-this perspective article evaluates the literature on ultrastructural lesions in canine CIE and human IBD and offers future directions for the study of ultrastructural mucosal lesions in canine CIE. Such lesions might have a higher sensitivity of detection than structural changes revealed upon light microscopy and may even precede or remain after the resolution of the clinical signs and histologic lesions.
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Affiliation(s)
- Simone A. Fietz
- Institute of Anatomy, Histology and Embryology, College of Veterinary Medicine, Leipzig University, Leipzig, Saxony, Germany
| | - Mirjam Kalusa
- Institute of Anatomy, Histology and Embryology, College of Veterinary Medicine, Leipzig University, Leipzig, Saxony, Germany
| | - Albert E. Jergens
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Dipak Kumar Sahoo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Tracey Stewart
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Romy M. Heilmann
- Department for Small Animals, College of Veterinary Medicine, Leipzig University, Leipzig, Saxony, Germany
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3
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Li Y, Li XM, Duan HY, Yang KD, Ye JF. Advances and optimization strategies in bacteriophage therapy for treating inflammatory bowel disease. Front Immunol 2024; 15:1398652. [PMID: 38779682 PMCID: PMC11109441 DOI: 10.3389/fimmu.2024.1398652] [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: 03/10/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
In the advancement of Inflammatory Bowel Disease (IBD) treatment, existing therapeutic methods exhibit limitations; they do not offer a complete cure for IBD and can trigger adverse side effects. Consequently, the exploration of novel therapies and multifaceted treatment strategies provides patients with a broader range of options. Within the framework of IBD, gut microbiota plays a pivotal role in disease onset through diverse mechanisms. Bacteriophages, as natural microbial regulators, demonstrate remarkable specificity by accurately identifying and eliminating specific pathogens, thus holding therapeutic promise. Although clinical trials have affirmed the safety of phage therapy, its efficacy is prone to external influences during storage and transport, which may affect its infectivity and regulatory roles within the microbiota. Improving the stability and precise dosage control of bacteriophages-ensuring robustness in storage and transport, consistent dosing, and targeted delivery to infection sites-is crucial. This review thoroughly explores the latest developments in IBD treatment and its inherent challenges, focusing on the interaction between the microbiota and bacteriophages. It highlights bacteriophages' potential as microbiome modulators in IBD treatment, offering detailed insights into research on bacteriophage encapsulation and targeted delivery mechanisms. Particular attention is paid to the functionality of various carrier systems, especially regarding their protective properties and ability for colon-specific delivery. This review aims to provide a theoretical foundation for using bacteriophages as microbiome modulators in IBD treatment, paving the way for enhanced regulation of the intestinal microbiota.
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Affiliation(s)
- Yang Li
- General Surgery Center, First Hospital of Jilin University, Changchun, Jilin, China
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Xiao-meng Li
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Hao-yu Duan
- General Surgery Center, First Hospital of Jilin University, Changchun, Jilin, China
| | - Kai-di Yang
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Jun-feng Ye
- General Surgery Center, First Hospital of Jilin University, Changchun, Jilin, China
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Moniruzzaman M, Janjua TI, Martin JH, Begun J, Popat A. Cannabidiol - Help and hype in targeting mucosal diseases. J Control Release 2024; 365:530-543. [PMID: 37952828 DOI: 10.1016/j.jconrel.2023.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/22/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023]
Abstract
Cannabidiol (CBD) is one of the most commonly utilised phytocannabinoids due to its non-psychoactive and multiple potential therapeutic properties and its non-selective pharmacology. Recent studies have demonstrated efficacy of CBD in some types of drug resistant epilepsies in combination with other therapies; comparative efficacy to other agents or placebo has been hoped for anxiety, chronic pain, and inflammatory disorders based on animal data. Although CBD products are generally treated as a restricted substance, these are being eased, partially in response to significant growth in CBD product usage and increased production but more due to emerging evidence about its safety and pharmacological properties. Currently, only one CBD product (Epidiolex®) has been approved by the Australian Therapeutic Goods Administration and US Food and Drug Administration. CBD has demonstrated promise in alleviating gut and lung diseases in vitro; however, its physicochemical properties pose a significant barrier to achieving pharmacological effects in in vivo and clinical trials. Improving CBD formulations and delivery methods using technologies including self-emulsifying emulsion, nano and micro particles could overcome these shortfalls and improve its efficacy. This review focuses on the therapeutic potential of CBD in gastrointestinal and lung diseases from the available in vitro, in vivo, and clinical research. We report on identified research gaps and obstacles in the development of CBD-based therapeutics, including novel delivery methods.
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Affiliation(s)
- Md Moniruzzaman
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia; Inflammatory Bowel Disease Group, Mater Research Institute - The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia; Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Taskeen Iqbal Janjua
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Jennifer H Martin
- Clinical Pharmacology, School of Medicine and Public Health, University of Newcastle, Hunter Medical Research Institute, Kookaburra Circuit, Australia
| | - Jakob Begun
- Inflammatory Bowel Disease Group, Mater Research Institute - The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia; Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia.
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Eid NM, Alsolami GA, Al-Nuafie HD, Malibari HW, Alsolami WD, Enani S. Assessment of Knowledge, Perception, and Practices Regarding Probiotics and Prebiotics Among Clinicians in Saudi Arabia: A Pilot Study. Cureus 2024; 16:e52080. [PMID: 38213941 PMCID: PMC10782407 DOI: 10.7759/cureus.52080] [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: 01/10/2024] [Indexed: 01/13/2024] Open
Abstract
Probiotics and prebiotics are important in preventing different diseases such as irritable bowel syndrome (IBS), which is a functional bowel disorder characterized by changes in bowel habits. Considering the limited studies on this topic, the present study was conducted to assess both gastroenterologist (GI) physicians' and dietitians' practices in recommending probiotics and prebiotics for IBS patients, as well as to measure their professional educational history on probiotics and prebiotics. A descriptive cross-sectional study was performed to investigate the knowledge, use, and perceptions of probiotics and prebiotics of GI physicians and dietitians at governmental hospitals in Jeddah, Saudi Arabia. A validated questionnaire was sent to 42 participants of both genders selected randomly, who were all qualified healthcare practitioners. The majority of GI physicians demonstrated high levels of knowledge about the health benefits of probiotics and prebiotics (76.2%). In contrast, most dietitians had lower levels of knowledge (52.4%), representing a significant difference between both groups (p<0.01). 83.3% of GI physicians believed that the use of probiotics and prebiotics was required for IBS patients, as compared with 50.0% of dietitians. In conclusion, GI physicians were shown to be more knowledgeable and believed more in the benefits of using probiotics and prebiotics in IBS patients than dietitians, but most participants were not aware of the probiotic products that are available in pharmacies in Saudi Arabia.
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Affiliation(s)
- Noura M Eid
- Clinical Nutrition, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, SAU
- Nutrition, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, SAU
| | - Ghadeer A Alsolami
- Clinical Nutrition, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, SAU
| | - Hadeel D Al-Nuafie
- Clinical Nutrition, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, SAU
| | - Haneen W Malibari
- Clinical Nutrition, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, SAU
| | - Wejdan D Alsolami
- Clinical Nutrition, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, SAU
| | - Sumia Enani
- Food and Nutrition, Faculty of Human Sciences and Design, King Abdulaziz University, Jeddah, SAU
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6
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Tataru C, Livni M, Marean-Reardon C, Franco MC, David M. Cytokine induced inflammatory bowel disease model using organ-on-a-chip technology. PLoS One 2023; 18:e0289314. [PMID: 38091316 PMCID: PMC10718466 DOI: 10.1371/journal.pone.0289314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 07/14/2023] [Indexed: 12/18/2023] Open
Abstract
Over 2 million people in North America suffer from inflammatory bowel disease (IBD), a chronic and idiopathic inflammatory condition. While previous research has primarily focused on studying immune cells as a cause and therapeutic target for IBD, recent findings suggest that non-immune cells may also play a crucial role in mediating cytokine and chemokine signaling, and therefore IBD symptoms. In this study, we developed an organ-on-a-chip co-culture model of Caco2 epithelial and HUVEC endothelial cells and induced inflammation using pro-inflammatory cytokines TNF-α and IFN-γ. We tested different concentration ranges and delivery orientations (apical vs. basal) to develop a consistently inducible inflammatory response model. We then measured pro-inflammatory cytokines and chemokines IL-6, IL-8, and CXCL-10, as well as epithelial barrier integrity. Our results indicate that this model 1. induces IBD-like cytokine secretion in non-immune cells and 2. decreases barrier integrity, making it a feasible and reliable model to test the direct actions of potential anti-inflammatory therapeutics on epithelial and endothelial cells.
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Affiliation(s)
- Christine Tataru
- Oregon State University, College of Science, Microbiology, Corvallis, OR, United States of America
| | - Maya Livni
- Oregon State University, College of Science, Microbiology, Corvallis, OR, United States of America
| | - Carrie Marean-Reardon
- Oregon State University, College of Science, Biochemistry and Biophysics, Corvallis, OR, United States of America
| | - Maria Clara Franco
- Oregon State University, College of Science, Biochemistry and Biophysics, Corvallis, OR, United States of America
- Florida International University, Herbert Wertheim College of Medicine, Center for Translational Science, Port St. Lucie, FL, United States of America
| | - Maude David
- Oregon State University, College of Science, Microbiology, Corvallis, OR, United States of America
- Oregon State University, College of Pharmacy, Corvallis, OR, United States of America
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7
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Zhao D, Jiao S, Yi H. Arsenic exposure induces small intestinal toxicity in mice by barrier damage and inflammation response via activating RhoA/ROCK and TLR4/Myd88/NF-κB signaling pathways. Toxicol Lett 2023; 384:44-51. [PMID: 37442281 DOI: 10.1016/j.toxlet.2023.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 05/16/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
Numerous studies have shown that arsenic (As) is an important hazardous metalloid that is commonly considered to have systemic toxicity. The main pathway of arsenic exposure is oral; however, many of the events that occur during its passage through the gastrointestinal tract are unclear, and there are few reports on the effect of arsenic on small intestinal mucosal barrier. This study aimed to investigate arsenic-induced mucosal barrier damage in the small intestine of mice induced by oral exposure and its potential mechanisms. In the present study, histomorphometric and immunohistochemical analyses showed that arsenic-treated mice exhibited signs of irregularly arranged and atrophied small intestinal villi, reduced villus lengths, inflammatory cells infiltration, along with up-regulated expression of inflammatory factors TNF-α, IL-6 and IL-1β in the small intestine of mice. The myeloperoxidase (MPO) activity was also increased in As-exposed mice. Transmission electron microscopy (TEM) analysis demonstrated that intestinal epithelial tight junctions (TJs) were impaired in the small intestines of mice in As group. In addition, arsenic down-regulated mRNA levels of TJ-related genes (ZO-1, ZO-2, occludin, claudin-1, and claudin-7) and protein levels of ZO-1, occludin and claudin-1 were significantly reduced in arsenic-treated groups, while arsenic also increased levels of TLR4, Myd88, NF-κB, RhoA, and ROCK mRNA and protein expression. In summary, these results indicate that the small intestine toxicity in mice evoked by arsenic was correlated with the activation of TLR4/Myd88/NF-κB and RhoA/ROCK pathways.
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Affiliation(s)
- Danyu Zhao
- School of Life Science, Shanxi University, Taiyuan 030006, Shanxi Province, China; Department of Gastroenterology, Shanxi Provincial People's Hospital, Taiyuan 030012, Shanxi Province, China
| | - Siwei Jiao
- School of Life Science, Shanxi University, Taiyuan 030006, Shanxi Province, China
| | - Huilan Yi
- School of Life Science, Shanxi University, Taiyuan 030006, Shanxi Province, China.
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8
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Zeng Z, Li C, Liu Y, Chen H, Feng X. Delivery of Transcriptional Factors for Activating Antioxidant Defenses against Inflammatory Bowel Disease. ACS APPLIED BIO MATERIALS 2023; 6:1306-1312. [PMID: 36881502 DOI: 10.1021/acsabm.3c00094] [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] [Indexed: 03/08/2023]
Abstract
Oxidative stress caused by the overproduction of reactive oxygen species (ROS) plays an important role in inflammatory bowel disease (IBD). It is well-known that the Nrf2-ARE (antioxidative response element) pathway is important in the regulation mechanism of antioxidant defense. Therefore, Nrf2 activation may be an effective therapeutic strategy for IBD. Here, we reported the development of a nucleus-targeted Nrf2 delivery nanoplatform, termed N/LC, that could accumulate in inflamed colonic epithelium, reduce inflammatory responses, and restore epithelium barriers in a murine model of acute colitis. N/LC nanocomposites could quickly escape from lysosomes, so Nrf2 largely accumulated in the nucleus of colonic cells, activated the Nrf2-ARE signaling pathway, further elevated the expression levels of downstream detoxification and antioxidant genes, and protected cells from oxidative damage. These results suggested that N/LC might be a potential nanoplatform for IBD therapy. The study provided the basis for the biomedical applications of Nrf2-based therapeutics in various diseases.
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Affiliation(s)
- Zhiying Zeng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Changying Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Ye Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Hui Chen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Xuli Feng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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Interleukin 11 confers resistance to dextran sulfate sodium-induced colitis in mice. iScience 2023; 26:105934. [PMID: 36685040 PMCID: PMC9852934 DOI: 10.1016/j.isci.2023.105934] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 11/30/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023] Open
Abstract
Intestinal homeostasis is tightly regulated by epithelial cells, leukocytes, and stromal cells, and its dysregulation is associated with inflammatory bowel diseases. Interleukin (IL)-11, a member of the IL-6 family of cytokines, is produced by inflammatory fibroblasts during acute colitis. However, the role of IL-11 in the development of colitis is still unclear. Herein, we showed that IL-11 ameliorated DSS-induced acute colitis in mouse models. We found that deletion of Il11ra1 or Il11 rendered mice highly susceptible to DSS-induced colitis compared to the respective control mice. The number of apoptotic epithelial cells was increased in DSS-treated Il11ra1- or Il11-deficient mice. Moreover, we showed that IL-11 production was regulated by reactive oxygen species (ROS) produced by lysozyme M-positive myeloid cells. These findings indicate that fibroblast-produced IL-11 plays an important role in protecting the mucosal epithelium in acute colitis. Myeloid cell-derived ROS contribute to the attenuation of colitis through the production of IL-11.
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Pandey U, Aich P. Postnatal intestinal mucosa and gut microbial composition develop hand in hand: A mouse study. Biomed J 2022; 46:100519. [PMID: 35306225 DOI: 10.1016/j.bj.2022.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/17/2022] [Accepted: 03/10/2022] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND During the early postnatal life, gut microbiota development experiences dynamic changes in their structural and functional composition. The postnatal period is the critical window to develop a host defense mechanism. The maturation of intestinal mucosal barrier integrity is one of the essential defense mechanisms to prevent the entry of pathogens. However, the co-development of intestinal microbial colonization, formation of barrier integrity, and intestinal epithelial cell layer is not entirely understood. METHODS We studied the gut microbial composition and diversity using 16S rRNA marker gene-based sequencing in mice to understand postnatal age-dependent association kinetics between gut microbial and intestinal development. Next, we assessed the intestinal development by in vivo gut permeability assay, mRNA gene expression of different tight junction proteins and intestinal epithelial cell markers, goblet cells population, villus length, and cecal IgA quantification. RESULTS Our results showed a significant shift in gut microbial structural and functional composition from postnatal day 14 onwards with early life Proteobacteria abundance. Relative abundance of Verrucomicrobia was maximum at postnatal day 14 and showed a gradual decrease over time. We also observed an age-dependent biphasic pattern in barrier integrity improvement and differentiation of intestinal epithelial cells (IECs). A significant improvement in barrier integrity between days 1 and 7 showed the host factor contribution, while that beyond day 14 revealed an association with changes in microbiota composition. Our temporal correlation analysis associated Bacteroidetes phylum with the mucosal barrier formation during postnatal development. CONCLUSIONS The present study revealed the importance and interplay of host factors and the microbiome in gut development and intestinal mucosal homeostasis.
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Machine Learning Modeling from Omics Data as Prospective Tool for Improvement of Inflammatory Bowel Disease Diagnosis and Clinical Classifications. Genes (Basel) 2021; 12:genes12091438. [PMID: 34573420 PMCID: PMC8466305 DOI: 10.3390/genes12091438] [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: 06/15/2021] [Revised: 08/21/2021] [Accepted: 09/14/2021] [Indexed: 12/14/2022] Open
Abstract
Research of inflammatory bowel disease (IBD) has identified numerous molecular players involved in the disease development. Even so, the understanding of IBD is incomplete, while disease treatment is still far from the precision medicine. Reliable diagnostic and prognostic biomarkers in IBD are limited which may reduce efficient therapeutic outcomes. High-throughput technologies and artificial intelligence emerged as powerful tools in search of unrevealed molecular patterns that could give important insights into IBD pathogenesis and help to address unmet clinical needs. Machine learning, a subtype of artificial intelligence, uses complex mathematical algorithms to learn from existing data in order to predict future outcomes. The scientific community has been increasingly employing machine learning for the prediction of IBD outcomes from comprehensive patient data-clinical records, genomic, transcriptomic, proteomic, metagenomic, and other IBD relevant omics data. This review aims to present fundamental principles behind machine learning modeling and its current application in IBD research with the focus on studies that explored genomic and transcriptomic data. We described different strategies used for dealing with omics data and outlined the best-performing methods. Before being translated into clinical settings, the developed machine learning models should be tested in independent prospective studies as well as randomized controlled trials.
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Upadhaya SD, Kim IH. The Impact of Weaning Stress on Gut Health and the Mechanistic Aspects of Several Feed Additives Contributing to Improved Gut Health Function in Weanling Piglets-A Review. Animals (Basel) 2021; 11:ani11082418. [PMID: 34438875 PMCID: PMC8388735 DOI: 10.3390/ani11082418] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary The current review aimed to provide an overview on the problems associated with weaning with a special focus on gut health, and also highlighted the nutritional approach using different kinds of feed additives and their mechanistic aspects in mitigating production inefficiencies and gut health dysfunction in weanling pigs. Abstract Newly weaned pig encounters psychosocial, physical, and nutritional stressors simultaneously when their immune system is not fully developed. These stressors have a cumulative effect on the immune response that contributes to the post-weaning growth lag which is characterized by depression in feed intake, reduced or negative growth rates, and increased susceptibility to pathogens in the first 24 to 48 h post-weaning. Consequently, the intestinal integrity, and digestive and absorptive capacity are impaired, and there is an increase in intestinal oxidative stress. It also causes the shifts in the taxonomic and functional properties of intestinal microbiome abruptly, thereby adversely affecting the health and performance of animals. It has been suggested that the effects of weaning stress on immune functions, intestinal barrier functions, and nervous system function in early weaned pigs extends into adulthood. The inclusion of different types of feed additives into the diet have been reported to alleviate the negative effects of weaning stress. The objective of this paper was to provide an overview on how the weaning stress affects gut health and the impact it has on production efficiencies, as well as the mechanistic aspects of several feed additives applied in reducing the weaning associated gut health problems and performance inefficiencies.
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Affiliation(s)
| | - In-Ho Kim
- Correspondence: ; Tel.: +82-41-550-3652; Fax: +82-41-565-2949
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13
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Zong X, Xiao X, Shen B, Jiang Q, Wang H, Lu Z, Wang F, Jin M, Min J, Wang F, Wang Y. The N6-methyladenosine RNA-binding protein YTHDF1 modulates the translation of TRAF6 to mediate the intestinal immune response. Nucleic Acids Res 2021; 49:5537-5552. [PMID: 33999206 PMCID: PMC8191762 DOI: 10.1093/nar/gkab343] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 03/31/2021] [Accepted: 04/20/2021] [Indexed: 12/11/2022] Open
Abstract
The intestinal invasion of pathogenic microorganisms can have serious health consequences. Recent evidence has shown that the N6-methyladenosine (m6A) mRNA modification is closely associated with innate immunity; however, the underlying mechanism is poorly understood. Here, we examined the function and mechanism of m6A mRNA modification and the YTH domain-containing protein YTHDF1 (YTH N6-methyladenosine RNA-binding protein 1) in the innate immune response against bacterial pathogens in the intestine. Ribo-seq and m6A-seq analyses revealed that YTHDF1 directs the translation of Traf6 mRNA, which encodes tumor necrosis factor receptor-associated factor 6, thereby regulating the immune response via the m6A modification near the transcript's stop codon. Furthermore, we identified a unique mechanism by which the P/Q/N-rich domain in YTHDF1 interacts with the DEAD domain in the host factor DDX60, thereby regulating the intestinal immune response to bacterial infection by recognizing the target Traf6 transcript. These results provide novel insights into the mechanism by which YTHDF1 recognizes its target and reveal YTHDF1 as an important driver of the intestinal immune response, opening new avenues for developing therapeutic strategies designed to modulate the intestinal immune response to bacterial infection.
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Affiliation(s)
- Xin Zong
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China.,The First Affiliated Hospital, School of Public Health, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Xiao Xiao
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Qin Jiang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Hong Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Zeqing Lu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China.,Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Fengqin Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China.,Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Mingliang Jin
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China.,Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Junxia Min
- The First Affiliated Hospital, School of Public Health, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Fudi Wang
- The First Affiliated Hospital, School of Public Health, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China.,Hengyang Medical School, University of South China, Hengyang, China
| | - Yizhen Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China.,Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
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14
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Cox CB, Storm EE, Kapoor VN, Chavarria-Smith J, Lin DL, Wang L, Li Y, Kljavin N, Ota N, Bainbridge TW, Anderson K, Roose-Girma M, Warming S, Arron JR, Turley SJ, de Sauvage FJ, van Lookeren Campagne M. IL-1R1-dependent signaling coordinates epithelial regeneration in response to intestinal damage. Sci Immunol 2021; 6:eabe8856. [PMID: 33963061 DOI: 10.1126/sciimmunol.abe8856] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 04/08/2021] [Indexed: 12/29/2022]
Abstract
Repair of the intestinal epithelium is tightly regulated to maintain homeostasis. The response after epithelial damage needs to be local and proportional to the insult. How different types of damage are coupled to repair remains incompletely understood. We report that after distinct types of intestinal epithelial damage, IL-1R1 signaling in GREM1+ mesenchymal cells increases production of R-spondin 3 (RSPO3), a Wnt agonist required for intestinal stem cell self-renewal. In parallel, IL-1R1 signaling regulates IL-22 production by innate lymphoid cells and promotes epithelial hyperplasia and regeneration. Although the regulation of both RSPO3 and IL-22 is critical for epithelial recovery from Citrobacter rodentium infection, IL-1R1-dependent RSPO3 production by GREM1+ mesenchymal cells alone is sufficient and required for recovery after dextran sulfate sodium-induced colitis. These data demonstrate how IL-1R1-dependent signaling orchestrates distinct repair programs tailored to the type of injury sustained that are required to restore intestinal epithelial barrier function.
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Affiliation(s)
- Christian B Cox
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Elaine E Storm
- Department of Molecular Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Varun N Kapoor
- Department of Cancer Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | | | - David L Lin
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Lifen Wang
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Yun Li
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Noelyn Kljavin
- Department of Molecular Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Naruhisa Ota
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Travis W Bainbridge
- Department of Protein Chemistry, Genentech Inc., South San Francisco, CA 94080, USA
| | - Keith Anderson
- Department of Molecular Biology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Merone Roose-Girma
- Department of Molecular Biology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Søren Warming
- Department of Molecular Biology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Joseph R Arron
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Shannon J Turley
- Department of Cancer Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Frederic J de Sauvage
- Department of Molecular Oncology, Genentech Inc., South San Francisco, CA 94080, USA.
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15
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Ho YT, Shimbo T, Wijaya E, Kitayama T, Takaki S, Ikegami K, Miyashita K, Ouchi Y, Takaki E, Yamamoto R, Kaneda Y, Tamai K. Longitudinal Single-Cell Transcriptomics Reveals a Role for Serpina3n-Mediated Resolution of Inflammation in a Mouse Colitis Model. Cell Mol Gastroenterol Hepatol 2021; 12:547-566. [PMID: 33862275 PMCID: PMC8258998 DOI: 10.1016/j.jcmgh.2021.04.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Proper resolution of inflammation is essential to maintaining homeostasis, which is important as a dysregulated inflammatory response has adverse consequences, even being regarded as a hallmark of cancer. However, our picture of dynamic changes during inflammation remains far from comprehensive. METHODS Here we used single-cell transcriptomics to elucidate changes in distinct cell types and their interactions in a mouse model of chemically induced colitis. RESULTS Our analysis highlights the stromal cell population of the colon functions as a hub with dynamically changing roles over time. Importantly, we found that Serpina3n, a serine protease inhibitor, is specifically expressed in stromal cell clusters as inflammation resolves, interacting with a potential target, elastase. Indeed, genetic ablation of the Serpina3n gene delays resolution of induced inflammation. Furthermore, systemic Serpina3n administration promoted the resolution of inflammation, ameliorating colitis symptoms. CONCLUSIONS This study provides a comprehensive, single-cell understanding of cell-cell interactions during colorectal inflammation and reveals a potential therapeutic target that leverages inflammation resolution.
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Affiliation(s)
- Yen-Ting Ho
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Takashi Shimbo
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Edward Wijaya
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
- StemRIM Inc, Ibaraki, Osaka, Japan
| | - Tomomi Kitayama
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
- StemRIM Inc, Ibaraki, Osaka, Japan
| | - Satoshi Takaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | | | | | - Yuya Ouchi
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
- StemRIM Inc, Ibaraki, Osaka, Japan
| | - Eiichi Takaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
- StemRIM Inc, Ibaraki, Osaka, Japan
| | - Ryoma Yamamoto
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
- StemRIM Inc, Ibaraki, Osaka, Japan
| | - Yasufumi Kaneda
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Katsuto Tamai
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
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16
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Mishra R, Dhawan P, Srivastava AS, Singh AB. Inflammatory bowel disease: Therapeutic limitations and prospective of the stem cell therapy. World J Stem Cells 2020; 12:1050-1066. [PMID: 33178391 PMCID: PMC7596447 DOI: 10.4252/wjsc.v12.i10.1050] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/02/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD), consisting primarily of ulcerative colitis and Crohn’s disease, is a group of debilitating auto-immune disorders, which also increases the risk of colitis-associated cancer. However, due to the chronic nature of the disease and inconsistent treatment outcomes of current anti-IBD drugs (e.g., approximately 30% non-responders to anti-TNFα agents), and related serious side effects, about half of all IBD patients (in millions) turn to alternative treatment options. In this regard, mucosal healing is gaining acceptance as a measure of disease activity in IBD patients as recent studies have correlated the success of mucosal healing with improved prognosis. However, despite the increasing clinical realization of the significance of the concept of mucosal healing, its regulation and means of therapeutic targeting remain largely unclear. Here, stem-cell therapy, which uses hematopoietic stem cells or mesenchymal stem cells, remains a promising option. Stem cells are the pluripotent cells with ability to differentiate into the epithelial and/or immune-modulatory cells. The over-reaching concept is that the stem cells can migrate to the damaged areas of the intestine to provide curative help in the mucosal healing process. Moreover, by differentiating into the mature intestinal epithelial cells, the stem cells also help in restoring the barrier integrity of the intestinal lining and hence prevent the immunomodulatory induction, the root cause of the IBD. In this article, we elaborate upon the current status of the clinical management of IBD and potential role of the stem cell therapy in improving IBD therapy and patient’s quality of life.
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Affiliation(s)
- Rangnath Mishra
- Global Institute of Stem Cell Therapy and Research, San Diego, CA 92122, United States
| | - Punita Dhawan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68118, United States
- Fred and Pamela Buffett Cancer Center, Omaha, NE 68118, United States
- VA Nebraska-Western Iowa Health Care System, Omaha, NE 68118, United States
| | - Anand S Srivastava
- Global Institute of Stem Cell Therapy and Research, San Diego, CA 92122, United States
| | - Amar B Singh
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68118, United States
- Fred and Pamela Buffett Cancer Center, Omaha, NE 68118, United States
- VA Nebraska-Western Iowa Health Care System, Omaha, NE 68118, United States
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17
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Banfield E, Fulton W, Burd I, Kovler ML, Sodhi CP, Hackam DJ. The role of in utero endotoxin exposure in the development of inflammatory bowel disease in mice. Am J Reprod Immunol 2020; 84:e13302. [PMID: 32662549 PMCID: PMC7722031 DOI: 10.1111/aji.13302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/30/2020] [Accepted: 07/09/2020] [Indexed: 01/03/2023] Open
Abstract
PROBLEM Although early environmental influences are thought to influence the development of inflammatory bowel disease (IBD), little is known about the role of the in utero environment on subsequent IBD risk. We hypothesized that prenatal exposure to bacterial lipopolysaccharide (LPS) could modify the subsequent development of dextran sulfate sodium (DSS)-induced ulcerative colitis in adulthood by influencing the associated cellular and immune response. METHOD OF STUDY To test this hypothesis, we exposed developing mice in utero to LPS or saline (PBS) at E17.5, and then induced colitis at 5 weeks. We then assessed colitis severity and effects on the microbiome. In order to define the developmental impact of any potential LPS effect, we also exposed 1-week-old mice to either LPS or saline before inducing colitis at 5 weeks. RESULTS Mice that had been exposed to LPS but not saline in utero were protected from subsequent colitis development, and their intestinal barrier integrity and tight junction expression distribution were similar to that of control mice that were not exposed to DSS. By contrast, mice exposed to either LPS or saline at day 7 of life all developed severe colitis upon subsequent DSS exposure. CONCLUSION These results identify an informative time window during fetal development during which exposure to an otherwise pro-inflammatory agent like LPS protects against an inflammatory disease in adulthood.
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Affiliation(s)
- Emilyn Banfield
- Department of Human Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - William Fulton
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Irina Burd
- Division of Maternal Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mark L Kovler
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chhinder P Sodhi
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David J Hackam
- Department of Human Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Division of Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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18
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Clinical Significance of CD147 in Children with Inflammatory Bowel Disease. BIOMED RESEARCH INTERNATIONAL 2020; 2020:7647181. [PMID: 33015178 PMCID: PMC7516708 DOI: 10.1155/2020/7647181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 05/24/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023]
Abstract
Background CD147/basigin (Bsg), a transmembrane glycoprotein, activates matrix metalloproteinases and promotes inflammation. Objective The aim of this study is to explore the clinical significance of CD147 in the pathogenesis of inflammatory bowel disease (IBD). Results In addition to monocytes, the clinical analysis showed that there is no significance obtained in leucocyte, neutrophil, eosinophil, basophil, and erythrocyte between IBD and controls. Immunohistochemistry analysis showed that CD147 was increased in intestinal tissue of patients with active IBD compared to that in the control group. What is more, CD147 is involved in intestinal barrier function and intestinal inflammation, which was attributed to the fact that it has an influence on MCT4 expression, a regulator of intestinal barrier function and intestinal inflammation, in HT-29 and CaCO2 cells. Most importantly, serum level of CD147 content is higher in active IBD than that in inactive IBD or healthy control, which could be a biomarker of IBD. Conclusion The data suggested that increased CD147 level could be a biomarker of IBD in children.
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19
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Kim S, Lee S, Lee H, Ju S, Park S, Kwon D, Yoo JW, Yoon IS, Min DS, Jung YS, Jung Y. A Colon-Targeted Prodrug, 4-Phenylbutyric Acid-Glutamic Acid Conjugate, Ameliorates 2,4-Dinitrobenzenesulfonic Acid-Induced Colitis in Rats. Pharmaceutics 2020; 12:pharmaceutics12090843. [PMID: 32899177 PMCID: PMC7558321 DOI: 10.3390/pharmaceutics12090843] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/17/2020] [Accepted: 08/26/2020] [Indexed: 02/07/2023] Open
Abstract
An elevated level of endoplasmic reticulum (ER) stress is considered an aggravating factor for inflammatory bowel disease (IBD). To develop an ER-stress attenuator that is effective against colitis, 4-phenylbutyric acid (4-PBA), a chemical chaperone that alleviates ER stress, was conjugated with acidic amino acids to yield 4-PBA-glutamic acid (PBA-GA) and 4-PBA-aspartic acid (PBA-AA) conjugates. The PBA derivatives were converted to 4-PBA in the cecal contents, and the conversion was greater with PBA-GA than that with PBA-AA. After oral administration of PBA-GA (oral PBA-GA), up to 2.7 mM PBA was detected in the cecum, whereas 4-PBA was not detected in the blood, indicating that PBA-GA predominantly targeted the large intestine. In 2,4-dinitrobenzenesulfonic acid-induced colitis in rats, oral PBA-GA alleviated the damage and inflammation in the colon and substantially reduced the elevated levels of ER stress marker proteins in the inflamed colon. Moreover, PBA-GA was found to be as effective as the currently used anti-IBD drug, sulfasalazine. In conclusion, PBA-GA is a colon-targeted prodrug of 4-PBA and is effective against rat colitis probably via the attenuation of ER stress in the inflamed colon.
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Affiliation(s)
- Soojin Kim
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - Seunghyun Lee
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - Hanju Lee
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - Sanghyun Ju
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - Sohee Park
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - Doyoung Kwon
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - Jin-Wook Yoo
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - In-Soo Yoon
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
| | - Do Sik Min
- College of Pharmacy, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea;
| | - Young-Suk Jung
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
- Correspondence: (Y.-S.J.); (Y.J.); Tel.: +51-510-2816 (Y.-S.J.); +51-510-2527(Y.J.); Fax: +51-513-6754 (Y.-S.J. & Y.J.)
| | - Yunjin Jung
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.K.); (S.L.); (H.L.); (S.J.); (S.P.); (D.K.); (J.-W.Y.); (I.-S.Y.)
- Correspondence: (Y.-S.J.); (Y.J.); Tel.: +51-510-2816 (Y.-S.J.); +51-510-2527(Y.J.); Fax: +51-513-6754 (Y.-S.J. & Y.J.)
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20
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Couto MR, Gonçalves P, Magro F, Martel F. Microbiota-derived butyrate regulates intestinal inflammation: Focus on inflammatory bowel disease. Pharmacol Res 2020; 159:104947. [DOI: 10.1016/j.phrs.2020.104947] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/04/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022]
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21
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Eckol Alleviates Intestinal Dysfunction during Suckling-to-Weaning Transition via Modulation of PDX1 and HBEGF. Int J Mol Sci 2020; 21:ijms21134755. [PMID: 32635412 PMCID: PMC7370175 DOI: 10.3390/ijms21134755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 12/14/2022] Open
Abstract
Maintaining intestinal health in livestock is critical during the weaning period. The precise mechanisms of intestinal dysfunction during this period are not fully understood, although these can be alleviated by phlorotannins, including eckol. This question was addressed by evaluating the changes in gene expression and intestinal function after eckol treatment during suckling-to-weaning transition. The biological roles of differentially expressed genes (DEGs) in intestinal development were investigated by assessing intestinal wound healing and barrier functions, as well as the associated signaling pathways and oxidative stress levels. We identified 890 DEGs in the intestine, whose expression was altered by eckol treatment, including pancreatic and duodenal homeobox (PDX)1, which directly regulate heparin-binding epidermal growth factor-like growth factor (HBEGF) expression in order to preserve intestinal barrier functions and promote wound healing through phosphoinositide 3-kinase (PI3K)/AKT and P38 signaling. Additionally, eckol alleviated H2O2-induced oxidative stress through PI3K/AKT, P38, and 5’-AMP-activated protein kinase (AMPK) signaling, improved growth, and reduced oxidative stress and intestinal permeability in pigs during the weaning period. Eckol modulates intestinal barrier functions, wound healing, and oxidative stress through PDX/HBEGF, and improves growth during the suckling-to-weaning transition. These findings suggest that eckol can be used as a feed supplement in order to preserve the intestinal functions in pigs and other livestock during this process.
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22
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Papoutsopoulou S, Satsangi J, Campbell BJ, Probert CS. Review article: impact of cigarette smoking on intestinal inflammation-direct and indirect mechanisms. Aliment Pharmacol Ther 2020; 51:1268-1285. [PMID: 32372449 DOI: 10.1111/apt.15774] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/13/2020] [Accepted: 04/16/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The inflammatory bowel diseases, Crohn's disease and ulcerative colitis are related multifactorial diseases. Their pathogenesis is influenced by each individual's immune system, the environmental factors within exposome and genetic predisposition. Smoking habit is the single best-established environmental factor that influences disease phenotype, behaviour and response to therapy. AIM To assess current epidemiological, experimental and clinical evidence that may explain how smoking impacts on the pathogenesis of inflammatory bowel disease. METHODS A Medline search for 'cigarette smoking', in combination with terms including 'passive', 'second-hand', 'intestinal inflammation', 'Crohn's disease', 'ulcerative colitis', 'colitis'; 'intestinal epithelium', 'immune system', 'intestinal microbiota', 'tight junctions', 'mucus', 'goblet cells', 'Paneth cells', 'autophagy'; 'epigenetics', 'genes', 'DNA methylation', 'histones', 'short noncoding/long noncoding RNAs'; 'carbon monoxide/CO' and 'nitric oxide/NO' was performed. RESULTS Studies found evidence of direct and indirect effects of smoking on various parameters, including oxidative damage, impairment of intestinal barrier and immune cell function, epigenetic and microbiota composition changes, that contribute to the pathogenesis of inflammatory bowel disease. CONCLUSIONS Cigarette smoking promotes intestinal inflammation by affecting the function and interactions among intestinal epithelium, immune system and microbiota/microbiome.
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Affiliation(s)
- Stamatia Papoutsopoulou
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Jack Satsangi
- Translational Gastroenterology Unit, Nuffield Department of Medicine, Experimental Medicine Division, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Barry J Campbell
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Chris S Probert
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
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Correlation of Patient-Reported Outcome (PRO-2) with Endoscopic and Histological Features in Ulcerative Colitis and Crohn's Disease Patients. Gastroenterol Res Pract 2020; 2020:2065383. [PMID: 32328091 PMCID: PMC7154964 DOI: 10.1155/2020/2065383] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/01/2020] [Accepted: 03/23/2020] [Indexed: 12/11/2022] Open
Abstract
Methods A cross-sectional study was conducted in consecutive newly diagnosed patients with inflammatory bowel disease in a tertiary care referral center. The initial evaluation included patient-reported outcome for stool frequency subscore and rectal bleeding. Endoscopic activity was determined using the Mayo scoring system for ulcerative colitis and the Simple Endoscopic Score for Crohn's disease. Histopathological activity was assessed using a validated numeric scoring system. Results We included 159 patients (63 Crohn's disease with colonic involvement and 96 with ulcerative colitis). We found significant correlation between the Mayo endoscopic subscoring system and histology activity in ulcerative colitis, while no correlation was found in patients with Crohn's disease. Patient-reported outcome showed inverse correlation with endoscopic and histological activity in Crohn's disease (rs = −0.67; rs = −0.72), while positive correlation was found in ulcerative colitis (rs = 0.84; rs = 0.75). Interpretation and Conclusions. Patient-reported outcome is a practical and noninvasive tool for assessment of disease activity in ulcerative colitis patients but not in Crohn's disease.
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Probiotic Propionibacterium freudenreichii requires SlpB protein to mitigate mucositis induced by chemotherapy. Oncotarget 2019; 10:7198-7219. [PMID: 31921383 PMCID: PMC6944450 DOI: 10.18632/oncotarget.27319] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/21/2019] [Indexed: 02/07/2023] Open
Abstract
Propionibacterium freudenreichii CIRM-BIA 129 (P. freudenreichii wild type, WT) is a probiotic bacterium, which exerts immunomodulatory effects. This strain possesses extractable surface proteins, including SlpB, which are involved in anti-inflammatory effect and in adhesion to epithelial cells. We decided to investigate the impact of slpB gene mutation on immunomodulation in vitro and in vivo. In an in vitro assay, P. freudenreichii WT reduced expression of IL-8 (p<0.0001) and TNF-α (p<0.0001) cytokines in LPS-stimulated HT-29 cells. P. freudenreichii ΔslpB, lacking the SlpB protein, failed to do so. Subsequently, both strains were investigated in vivo in a 5-FU-induced mucositis mice model. Mucositis is a common side effect of cytotoxic chemotherapy with 5-FU, characterized by mucosal injury, inflammation, diarrhea, and weight loss. The WT strain prevented weight loss, reduced inflammation and consequently histopathological scores. Furthermore, it regulated key markers, including Claudin-1 (cld1, p<0.0005) and IL-17a (Il17a, p<0.0001) genes, as well as IL-12 (p<0.0001) and IL-1β (p<0.0429) cytokines levels. Mutant strain displayed opposite regulatory effect on cld1 expression and on IL-12 levels. This work emphasizes the importance of SlpB in P. freudenreichii ability to reduce mucositis inflammation. It opens perspectives for the development of probiotic products to decrease side effects of chemotherapy using GRAS bacteria with immunomodulatory surface protein properties.
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Wang Y, Chiang IL, Ohara TE, Fujii S, Cheng J, Muegge BD, Ver Heul A, Han ND, Lu Q, Xiong S, Chen F, Lai CW, Janova H, Wu R, Whitehurst CE, VanDussen KL, Liu TC, Gordon JI, Sibley LD, Stappenbeck TS. Long-Term Culture Captures Injury-Repair Cycles of Colonic Stem Cells. Cell 2019; 179:1144-1159.e15. [PMID: 31708126 PMCID: PMC6904908 DOI: 10.1016/j.cell.2019.10.015] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/15/2019] [Accepted: 10/16/2019] [Indexed: 02/07/2023]
Abstract
The colonic epithelium can undergo multiple rounds of damage and repair, often in response to excessive inflammation. The responsive stem cell that mediates this process is unclear, in part because of a lack of in vitro models that recapitulate key epithelial changes that occur in vivo during damage and repair. Here, we identify a Hopx+ colitis-associated regenerative stem cell (CARSC) population that functionally contributes to mucosal repair in mouse models of colitis. Hopx+ CARSCs, enriched for fetal-like markers, transiently arose from hypertrophic crypts known to facilitate regeneration. Importantly, we established a long-term, self-organizing two-dimensional (2D) epithelial monolayer system to model the regenerative properties and responses of Hopx+ CARSCs. This system can reenact the "homeostasis-injury-regeneration" cycles of epithelial alterations that occur in vivo. Using this system, we found that hypoxia and endoplasmic reticulum stress, insults commonly present in inflammatory bowel diseases, mediated the cyclic switch of cellular status in this process.
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Affiliation(s)
- Yi Wang
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - I-Ling Chiang
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Takahiro E Ohara
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Satoru Fujii
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Jiye Cheng
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA; The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Brian D Muegge
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Aaron Ver Heul
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Nathan D Han
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA; The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Qiuhe Lu
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Shanshan Xiong
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Feidi Chen
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Chin-Wen Lai
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Hana Janova
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Renee Wu
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Charles E Whitehurst
- Boehringer Ingelheim Pharmaceuticals, Immunology and Respiratory Disease Research, Ridgefield, CT 06877, USA
| | - Kelli L VanDussen
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Ta-Chiang Liu
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Jeffrey I Gordon
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA; The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - L David Sibley
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Thaddeus S Stappenbeck
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
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26
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Abstract
Metabolic control systems coordinate myriad processes across the cellular, tissue and organismal levels to optimize the allocation of limited supplies across multiple, often competing, metabolic demands. As such, the regulation of metabolism can be analysed from the perspective of the economic theory of supply and demand. Here, we discuss how such analyses can provide new insights into the logic of metabolic control. In particular, we suggest that, in addition to being subject to well-appreciated homeostatic control, metabolism is subject to supply-driven and demand-driven controls, each operated by a dedicated set of signals throughout various physiological states, including inflammation. Furthermore, we argue that systemic homeostasis is a derived feature that evolved from the control systems that monitor metabolic supply and demand.
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Affiliation(s)
- Jessica Ye
- Howard Hughes Medical Institute and Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Ruslan Medzhitov
- Howard Hughes Medical Institute and Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
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27
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Wilson A, Urquhart BL, Ponich T, Chande N, Gregor JC, Beaton M, Kim RB. Crohn's Disease Is Associated with Decreased CYP3A4 and P-Glycoprotein Protein Expression. Mol Pharm 2019; 16:4059-4064. [PMID: 31393129 DOI: 10.1021/acs.molpharmaceut.9b00459] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cytochrome P450 (CYP) 3A4 and P-glycoprotein (P-gp) have broad substrate overlap and are involved in the metabolism and transport of nearly 50% of currently prescribed medications. In the intestine, CYP3A4 and P-gp are coexpressed in the enterocytes at the intestinal villous tip and act in a coordinated manner to limit drug and xenobiotic oral bioavailability prior to further metabolism and disposition in the liver. Crohn's disease (CD), a form of inflammatory bowel disease, introduces a transmural intestinal insult that disrupts the intestinal barrier function; it therefore has the potential to affect intestinal drug metabolism and transport. We hypothesized that individuals with CD have reduced intestinal expression of CYP3A4 and P-gp. We obtained intestinal biopsy samples from individuals with and without CD and quantified the expression of CYP3A4 and P-gp. When we carried out Western analysis for protein expression, we observed a significant reduction in ileal (45% decrease) and colonic (78% decrease) CYP3A4 protein expression in subjects with CD compared with those without. Similarly, an 85% reduction in colonic P-gp protein expression was seen in the CD patients. Our data highlight important and novel findings pertaining to CD-associated changes to the intestinal expression of CYP3A4 and P-gp that are of relevance to better predict substrate drug dosing for patients with CD.
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28
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Zhang S, Xu W, Wang H, Cao M, Li M, Zhao J, Hu Y, Wang Y, Li S, Xie Y, Chen G, Liu R, Cheng Y, Xu Z, Zou K, Gong S, Geng L. Inhibition of CREB-mediated ZO-1 and activation of NF-κB-induced IL-6 by colonic epithelial MCT4 destroys intestinal barrier function. Cell Prolif 2019; 52:e12673. [PMID: 31418947 PMCID: PMC6869122 DOI: 10.1111/cpr.12673] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 06/13/2019] [Accepted: 07/07/2019] [Indexed: 02/06/2023] Open
Abstract
Objective Inflammatory bowel disease (IBD) is a disorder intestinal inflammation and impaired barrier function, associated with increased epithelial expression of monocarboxylate transporter 4 (MCT4). However, the specific non‐metabolic function and clinical relevance of MCT4 in IBD remain to be fully elucidated. Methods Lentivirus‐mediated overexpression of MCT4 was used to assess the role of MCT4 in transcriptionally regulating ZO‐1 and IL‐6 expression by luciferase assays, WB and ChIP. IP was used to analyse the effect of MCT4 on the interaction NF‐κB‐CBP or CREB‐CBP, and these MCT4‐mediated effects were confirmed in vivo assay. Results We showed that ectopic expression of MCT4 inhibited ZO‐1 expression, while increased pro‐inflammatory factors expression, leading to destroy intestinal epithelial barrier function in vitro and in vivo. Mechanistically, MCT4 contributed NF‐κB p65 nuclear translocation and increased the binding of NF‐κB p65 to the promoter of IL‐6, which is attributed to MCT4 enhanced NF‐κB‐CBP interaction and dissolved CREB‐CBP complex, resulting in reduction of CREB activity and CREB‐mediated ZO‐1 expression. In addition, treatment of experimental colitis with MCT4 inhibitor α‐cyano‐4‐hydroxycinnamate (CHC) ameliorated mucosal intestinal barrier function, which was due to attenuation of pro‐inflammation factors expression and enhancement of ZO‐1 expression. Conclusion These findings suggested a novel role of MCT4 in controlling development of IBD and provided evidence for potential targets of IBD.
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Affiliation(s)
- Shunxian Zhang
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Wanfu Xu
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongli Wang
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Meiwan Cao
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Musheng Li
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Junhong Zhao
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yan Hu
- Department of Anesthesiology, Hainan General Hospital, Haikou, China
| | - Yaodong Wang
- Department of Gastroenterology, Kunshan affiliated Hospital of Nanjing University of Chinese Medicine, Kunshan, China
| | - Songyu Li
- Department of Clinical Laboratory, Qionghai Hospital of Traditional Chinese Medicine, Qionghai, China
| | - Yuanwen Xie
- Department of Anorectal, Qionghai Hospital of Traditional Chinese Medicine, Qionghai, China
| | - Guanhua Chen
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ruitao Liu
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yang Cheng
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zhaohui Xu
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Kejian Zou
- Department of General Surgery, Hainan General Hospital, Haikou, China
| | - Sitang Gong
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Lanlan Geng
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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29
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Interleukin (IL)-22 from IL-20 Subfamily of Cytokines Induces Colonic Epithelial Cell Proliferation Predominantly through ERK1/2 Pathway. Int J Mol Sci 2019; 20:ijms20143468. [PMID: 31311100 PMCID: PMC6678670 DOI: 10.3390/ijms20143468] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/12/2019] [Accepted: 07/12/2019] [Indexed: 02/06/2023] Open
Abstract
The interleukin (IL)-20 subfamily of cytokines consists of IL-19, IL-20, IL-22, IL-24, and IL-26, and the expression of IL-20, IL-22, and IL-24 is reported to be higher in the colon of patients with ulcerative colitis. Although the receptors for these cytokines are highly expressed in the colon epithelium, their effects on epithelial renewal are not clearly understood. This study evaluated the effects of IL-20, IL-22, and IL-24 in epithelial renewal using the LS174T human colon cancer epithelial cell line. LS174T cells were treated with IL-20, IL-22, and IL-24 (25, 50, and 100 ng/mL) and a live-cell imaging system was used to evaluate the effects on cell proliferation. Following treatment, the signaling pathways contributing to cell proliferation were investigated through Western blotting in LS174T cells and downstream transcriptional changes through qRT-PCR in LS174T cells, and RNA-Seq in primary murine intestinal epithelial cells. Our results demonstrated that only IL-22 promoted LS174T cell proliferation, mediated via extracellular-signal-regulated kinase (ERK)1/2-mediated downstream regulation of p90RSK, c-Jun, and transcriptional changes of TRIM15 and STOM. IL-22 also promoted expression of ERK1/2-independent genes such as DDR2, LCN2, and LRG1, which are known to be involved in cell proliferation and migration. This study suggests that IL-22 induces cell proliferation in highly proliferative cells such as intestinal epithelial cells.
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30
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Orr SE, Gokulan K, Boudreau M, Cerniglia CE, Khare S. Alteration in the mRNA expression of genes associated with gastrointestinal permeability and ileal TNF-α secretion due to the exposure of silver nanoparticles in Sprague-Dawley rats. J Nanobiotechnology 2019; 17:63. [PMID: 31084603 PMCID: PMC6513523 DOI: 10.1186/s12951-019-0499-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/04/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Silver ions from silver nanoparticles (AgNP) or AgNPs themselves itself that are ingested from consumer health care products or indirectly from absorbed food contact material can interact with the gastrointestinal tract (GIT). The permeability of the GIT is strictly regulated to maintain barrier function and proper nutrient absorption. The single layer intestinal epithelium adheres and communicates actively to neighboring cells and the extracellular matrix through different cell junctions. In the current study, we hypothesized that oral exposure to AgNPs may alter the intestinal permeability and expression of genes controlling cell junctions. Changes in cell junction gene expression in the ileum of male and female rats administered different sizes of AgNP for 13-weeks were assessed using qPCR. RESULTS The results of this study indicate that AgNPs have an altering effect on cell junctions that are known to dictate intestinal permeability. mRNA expression of genes representing tight junction (Cldn1, Cldn5, Cldn6, Cldn10 and Pecam1), focal adhesion (Cav1, Cav2, and Itgb2), adherens junction (Pvrl1, Notch1, and Notch2), and hemidesmosome (Dst) groups were upregulated significantly in females treated with 10 nm AgNP, while no change or downregulation of same genes was detected in male animals. In addition, a higher concentration of pro-inflammatory cytokine, TNF-α, was noticed in AgNP-treated female animals as compared to controls. CONCLUSIONS This study proposes that interaction of silver with GIT could potentially initiate an inflammatory process that could lead to changes in the gastrointestinal permeability and/or nutrient deficiencies in sex-specific manner. Fully understanding the mechanistic consequences of oral AgNP exposure may lead to stricter regulation for the commercial usage of AgNPs and/or improved clinical therapy in the future.
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Affiliation(s)
- Sarah E Orr
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Kuppan Gokulan
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Mary Boudreau
- Division of Biochemical Toxicology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Carl E Cerniglia
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA
| | - Sangeeta Khare
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Road, Jefferson, AR, 72029, USA.
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31
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Holloway EM, Capeling MM, Spence JR. Biologically inspired approaches to enhance human organoid complexity. Development 2019; 146:dev166173. [PMID: 30992275 PMCID: PMC6503984 DOI: 10.1242/dev.166173] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Organoids are complex three-dimensional in vitro organ-like model systems. Human organoids, which are derived from human pluripotent stem cells or primary human donor tissue, have been used to address fundamental questions about human development, stem cell biology and organ regeneration. Focus has now shifted towards implementation of organoids for biological discovery and advancing existing systems to more faithfully recapitulate the native organ. This work has highlighted significant unknowns in human biology and has invigorated new exploration into the cellular makeup of human organs during development and in the adult - work that is crucial for providing appropriate benchmarks for organoid systems. In this Review, we discuss efforts to characterize human organ cellular complexity and attempts to make organoid models more realistic through co-culture, transplantation and bioengineering approaches.
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Affiliation(s)
- Emily M Holloway
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Meghan M Capeling
- Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI 48109, USA
| | - Jason R Spence
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI 48109, USA
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Center for Organogenesis, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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32
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Curciarello R, Canziani KE, Docena GH, Muglia CI. Contribution of Non-immune Cells to Activation and Modulation of the Intestinal Inflammation. Front Immunol 2019; 10:647. [PMID: 31024529 PMCID: PMC6467945 DOI: 10.3389/fimmu.2019.00647] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 03/11/2019] [Indexed: 12/27/2022] Open
Abstract
The mucosal immune system constitutes a physical and dynamic barrier against foreign antigens and pathogens and exerts control mechanisms to maintain intestinal tolerance to the microbiota and food antigens. Chronic alterations of the intestinal homeostasis predispose to inflammatory diseases of the gastrointestinal tract, such as Inflammatory Bowel Diseases (IBD). There is growing evidence that the frequency and severity of these diseases are increasing worldwide, which may be probably due to changes in environmental factors. Several stromal and immune cells are involved in this delicate equilibrium that dictates homeostasis. In this review we aimed to summarize the role of epithelial cells and fibroblasts in the induction of mucosal inflammation in the context of IBD. It has been extensively described that environmental factors are key players in this process, and the microbiome of the gastrointestinal tract is currently being intensively investigated due to its profound impact the immune response. Recent findings have demonstrated the interplay between dietary and environmental components, the gut microbiome, and immune cells. "Western" dietary patterns, such as high caloric diets, and pollution can induce alterations in the gut microbiome that in turn affect the intestinal and systemic homeostasis. Here we summarize current knowledge on the influence of dietary components and air particulate matters on gut microbiome composition, and the impact on stromal and immune cells, with a particular focus on promoting local inflammation.
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Affiliation(s)
- Renata Curciarello
- Instituto de Estudios Inmunológicos y Fisiopatológicos, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina.,Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Karina Eva Canziani
- Instituto de Estudios Inmunológicos y Fisiopatológicos, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina.,Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Guillermo Horacio Docena
- Instituto de Estudios Inmunológicos y Fisiopatológicos, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina.,Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Cecilia Isabel Muglia
- Instituto de Estudios Inmunológicos y Fisiopatológicos, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina.,Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
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33
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Lee J, Choi HS, Lee J, Park J, Kim SB, Shin MS, Lee S, Hwang GS, Koo BA, Kang KS. Preparation of Herbal Formulation for Inflammatory Bowel Disease Based on In Vitro Screening and In Vivo Evaluation in a Mouse Model of Experimental Colitis. Molecules 2019; 24:molecules24030464. [PMID: 30696085 PMCID: PMC6384830 DOI: 10.3390/molecules24030464] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 01/19/2019] [Accepted: 01/25/2019] [Indexed: 01/08/2023] Open
Abstract
Many medicinal plants have been used traditionally in East Asia for the treatment of gastrointestinal disease and inflammation. The aim of this study was to evaluate the anti-inflammatory activity of 350 extracts (175 water extracts and 175 ethanol extracts) from 71 single plants, 97 mixtures of two plants, and seven formulations based on traditional medicine, to find herbal formulations to treat inflammatory bowel disease (IBD). In the in vitro screening, nitric oxide (NO), tumor necrosis factor (TNF)-α, and interleukin (IL)-6 levels were determined in LPS-treated RAW264.7 cells and the TNF-α induced monocyte-epithelial cell adhesion assay was used for the evaluation of the anti-inflammatory activity of the compounds. Dextran sulfate sodium (DSS)-induced colitis model and 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis model were used to evaluate the therapeutic effect against IBD of the samples selected from the in vitro screening. KM1608, composed of Zingiber officinale, Terminalia chebula and Aucklandia lappa, was prepared based on the screening experiments. The oral administration of KM1608 significantly attenuated the severity of colitis symptoms, such as weight loss, diarrhea, and rectal bleeding, in TNBS-induced colitis. In addition, inflammatory mediators, such as myeloperoxidase, TNF-α, and IL-6 levels decreased in the lysate of colon tissues treated with KM1608. Collectively, KM1608 ameliorated colitis through the regulation of inflammatory responses within the colon, which indicated that KM1608 had potential for the treatment of IBD.
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Affiliation(s)
- Jaemin Lee
- College of Korean Medicine, Gachon University, Seongnam-si, Gyeonggi-do 13120, Korea.
| | - Han-Seok Choi
- New Drug Research Team, Kolmar, Korea Co. Ltd., Sandan-gil, Jeonui-myeon, Sejong-si 30003, Korea.
| | - Jinkyung Lee
- College of Korean Medicine, Gachon University, Seongnam-si, Gyeonggi-do 13120, Korea.
| | - Jimin Park
- New Drug Research Team, Kolmar, Korea Co. Ltd., Sandan-gil, Jeonui-myeon, Sejong-si 30003, Korea.
| | - Sang-Back Kim
- New Drug Research Team, Kolmar, Korea Co. Ltd., Sandan-gil, Jeonui-myeon, Sejong-si 30003, Korea.
| | - Myoung-Sook Shin
- College of Korean Medicine, Gachon University, Seongnam-si, Gyeonggi-do 13120, Korea.
| | - Sullim Lee
- College of Bio-Nanotechnology, Gachon University, Seongnam-si, Gyeonggi-do 13120, Korea.
| | - Gwi Seo Hwang
- College of Korean Medicine, Gachon University, Seongnam-si, Gyeonggi-do 13120, Korea.
| | - Bon Am Koo
- New Drug Research Team, Kolmar, Korea Co. Ltd., Sandan-gil, Jeonui-myeon, Sejong-si 30003, Korea.
| | - Ki Sung Kang
- College of Korean Medicine, Gachon University, Seongnam-si, Gyeonggi-do 13120, Korea.
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He Z, Song J, Hua J, Yang M, Ma Y, Yu T, Feng J, Liu B, Wang X, Li Y, Li J. Mast cells are essential intermediaries in regulating IL-33/ST2 signaling for an immune network favorable to mucosal healing in experimentally inflamed colons. Cell Death Dis 2018; 9:1173. [PMID: 30518915 PMCID: PMC6281667 DOI: 10.1038/s41419-018-1223-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/11/2018] [Accepted: 11/13/2018] [Indexed: 12/13/2022]
Abstract
Mast cells (MCs) are potent tissue-resident immune cells that are distributed in the intraepithelial space of the intestine and have been implicated in regulating immune homeostasis and coordinating epithelial responses in inflamed mucosa of inflammatory bowel disease (IBD). IL-33 functions as an endogenous danger signal or alarmin in inflamed intestine segments. MCs highly express the IL-33 receptor ST2. However, the mechanisms underlying the immune regulation of MC-dependent IL-33/ST2 signaling at the barrier surface of the intestine remain largely unknown. We confirmed that MCs are required for the effective resolution of tissue damage using an experimental colitis model that allows for conditional ablation of MCs. After elucidating the IL-33 signaling involved in MC activity in the context of intestinal inflammation, we found that the function of restricted IL-33/ST2 signaling by MCs was consistent with an MC deficiency in response to the breakdown of the epithelial barrier. We observed that a tissue environment with a spectrum of protective cytokines was orchestrated by MC-dependent IL-33/ST2 signaling. Given the significant downregulation of IL-22 and IL-13 due to the loss of MC-dependent IL-33/ST2 signaling and their protective functions in inflammation settings, induction of IL-22 and IL-13 may be responsible for an immune network favorable to mucosal repair. Collectively, our data showed an important feedback loop in which cytokine cues from damaged epithelia activate MCs to regulate tissue environments essential for MC-dependent restoration of epithelial barrier function and maintenance of tissue homeostasis.
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Affiliation(s)
- Zhigang He
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Jian Song
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Jie Hua
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, No. 270 Dong' An Road, Shanghai, P. R. China
| | - Muqing Yang
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Yuanyuan Ma
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Tianyu Yu
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Junlan Feng
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Bin Liu
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Xiaodong Wang
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China
| | - Yue Li
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital School of Medicine, Tongji University, 301 Middle Yanchang Road, 200 072, Shanghai, P. R. China
| | - Jiyu Li
- Department of General Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No. 301 Middle Yan' Chang Road, 200072, Shanghai, P. R. China.
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35
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Co-occurrence of Asthma and the Inflammatory Bowel Diseases: A Systematic Review and Meta-analysis. Clin Transl Gastroenterol 2018; 9:188. [PMID: 30250122 PMCID: PMC6155154 DOI: 10.1038/s41424-018-0054-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 08/11/2018] [Indexed: 02/07/2023] Open
Abstract
Background Inflammatory bowel diseases (IBD) and asthma share genetic and environmental risk factors. Consequently, several observational studies have explored an association between IBD and asthma. We systematically reviewed and summarized the literature on the co-occurrence of asthma and IBD. Methods MEDLINE and EMBASE (to April 2017) were searched to identify observational studies on the association between asthma and IBD. Relative risks (RR) were pooled using random effects models. Heterogeneity was assessed using the I2 and Cochran Q statistics. Meta-regression based on study design, source of patients (population-based vs. tertiary-care center) and study location was conducted to explain between-study heterogeneity. Results Eighteen studies were identified (15 Crohn’s disease, 15 ulcerative colitis (UC)). Asthma was associated with both Crohn’s disease (pooled RR 1.30, 95% confidence interval (CI) 1.16–1.47, I2 = 88%) and UC (RR 1.34, 95% CI 1.24–1.44, I2 = 93%). The study design and source of patients and study location explained between-study heterogeneity in Crohn’s disease, but not UC. Conclusion Asthma is associated with both Crohn’s disease and UC. Additional research is needed to determine if one disease influences the risk of developing the other or if the frequent co-occurrence of these diseases result from shared genetic, environmental, and microbial risk factors.
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Cunningham KE, Novak EA, Vincent G, Siow VS, Griffith BD, Ranganathan S, Rosengart MR, Piganelli JD, Mollen KP. Calcium/calmodulin-dependent protein kinase IV (CaMKIV) activation contributes to the pathogenesis of experimental colitis via inhibition of intestinal epithelial cell proliferation. FASEB J 2018; 33:1330-1346. [PMID: 30113881 DOI: 10.1096/fj.201800535r] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The incidence and prevalence of inflammatory bowel disease (IBD) are increasing worldwide. IBD is known to be multifactorial, but inflammatory signaling within the intestinal epithelium and a subsequent failure of the intestinal epithelial barrier have been shown to play essential roles in disease pathogenesis. CaMKIV is a multifunctional protein kinase associated with inflammation and cell cycle regulation. CaMKIV has been extensively studied in autoimmune diseases, but a role in idiopathic intestinal inflammation has not been described. In this study, active CaMKIV was highly expressed within the intestinal epithelium of humans with ulcerative colitis and wild-type (WT) mice with experimental induced colitis. Clinical disease severity directly correlates with CaMKIV activation, as does expression of proinflammatory cytokines and histologic features of colitis. In WT mice, CaMKIV activation is associated with increases in expression of 2 cell cycle proarrest signals: p53 and p21. Cell cycle arrest inhibits proliferation of the intestinal epithelium and ultimately results in compromised intestinal epithelial barrier integrity, further perpetuating intestinal inflammation during experimental colitis. Using a CaMKIV null mutant mouse, we demonstrate that a loss of CaMKIV protects against murine DSS colitis. Small molecules targeting CaMKIV activation may provide therapeutic benefit for patients with IBD.-Cunningham, K. E., Novak, E. A., Vincent, G., Siow, V. S., Griffith, B. D., Ranganathan, S., Rosengart, M. R., Piganelli, J. D., Mollen, K. P. Calcium/calmodulin-dependent protein kinase IV (CaMKIV) activation contributes to the pathogenesis of experimental colitis via inhibition of intestinal epithelial cell proliferation.
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Affiliation(s)
- Kellie E Cunningham
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Elizabeth A Novak
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Division of Pediatric Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center (UPMC), Pittsburgh, Pennsylvania, USA
| | - Garret Vincent
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Division of Pediatric Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center (UPMC), Pittsburgh, Pennsylvania, USA
| | - Vei Shaun Siow
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Brian D Griffith
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Sarangarajan Ranganathan
- Department of Pathology, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center (UPMC), Pittsburgh, Pennsylvania, USA
| | - Matthew R Rosengart
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Jon D Piganelli
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Kevin P Mollen
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Division of Pediatric Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center (UPMC), Pittsburgh, Pennsylvania, USA
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Feng G, Feng Y, Guo T, Yang Y, Guo W, Huang M, Wu H, Zeng M. Biogenic Polyphosphate Nanoparticles from Synechococcus sp. PCC 7002 Exhibit Intestinal Protective Potential in Human Intestinal Epithelial Cells In Vitro and Murine Small Intestine Ex Vivo. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8026-8035. [PMID: 29975063 DOI: 10.1021/acs.jafc.8b03381] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polyphosphates are one of the active compounds from probiotics to maintain gut health. The current research extracted and purified intact biogenic polyphosphate nanoparticles (BPNPs) from Synechococcus sp. PCC 7002 cells. BPNPs were near-spherical anionic particles (56.9 ± 15.1 nm) mainly composed of calcium and magnesium salt of polyphosphate and were colloidally stable at near-neutral and alkaline pH. BPNPs survived gastrointestinal digestion in mice and could be absorbed and transported by polarized Caco-2 cell monolayers. They dose-dependently increased the tightness of intercellular tight junction and the expression of claudin-4, occludin, zonula occludens-1, and heat shock protein 27 in Caco-2 cell monolayers. BPNPs also effectively attenuated H2O2-induced cell death, plasma membrane impairment, and intracellular superoxide production in NCM460 cells. In addition, they conferred resistance to H2O2-induced barrier disruption in freshly excised mouse small intestine. Our results suggest that BPNPs are a promising postbiotic nanomaterial with potential applications in gut health maintenance.
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Affiliation(s)
- Guangxin Feng
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
| | - Yinong Feng
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
| | - Tengjiao Guo
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
| | - Yisheng Yang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
| | - Wei Guo
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
| | - Min Huang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
| | - Haohao Wu
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
| | - Mingyong Zeng
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao , Shandong Province 266003 , China
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38
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Expression profiling and intracellular localization studies of the novel Proline-, Histidine-, and Glycine-rich protein 1 suggest an essential role in gastro-intestinal epithelium and a potential clinical application in colorectal cancer diagnostics. BMC Gastroenterol 2018; 18:26. [PMID: 29415677 PMCID: PMC5803922 DOI: 10.1186/s12876-018-0752-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 01/23/2018] [Indexed: 12/24/2022] Open
Abstract
Background The primary function of the intestines is the absorption of water and nutrients. Although our knowledge about these processes on the cellular level is extensive, a number of important intracellular elements remain unknown. Here, we characterize the novel proline-, histidine-, glycine-rich 1 (PHGR1) mRNA and protein on the molecular level and propose a functional role of the PHGR1 protein in the intestinal and gastric epithelium. Methods PHGR1 mRNA and protein expression in human tissues and cell lines were characterized by quantitative RT-PCR, in situ hybridization, Northern blotting, Western blotting, and immunohistochemistry. Glycosylation was assessed by a chemical deglycosylation assay, whereas intracellular localization was studied by immunofluorescent staining of cell line cells. PHGR1 mRNA levels in HT29 cells was reduced by RNA interference and the resulting global changes in gene expression assessed by microarray hybridization. Results PHGR1 mRNA and protein were found to be expressed specifically in epithelial cells of intestinal mucosa, with the highest expression in the most mature and differentiated cells. PHGR1 protein was found to be glycosylated and to localize to both the cytoplasm and nucleus. Transcript profiling and gene ontology analysis of HT29 cells subjected to PHGR1 knockdown suggested a functional relationship with transport and metabolic processes. Examination of PHGR1 mRNA and protein levels in lymph nodes with known colorectal cancer metastases indicated that they may serve as biomarkers for detection of such metastases. Conclusions Functional analyses of the novel PHGR1 mRNA and protein suggest an essential role in gastrointestinal epithelium and a clinical application in detection of colorectal cancer lymph node metastases. Electronic supplementary material The online version of this article (10.1186/s12876-018-0752-8) contains supplementary material, which is available to authorized users.
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39
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Górski A, Jończyk-Matysiak E, Łusiak-Szelachowska M, Międzybrodzki R, Weber-Dąbrowska B, Borysowski J. Bacteriophages targeting intestinal epithelial cells: a potential novel form of immunotherapy. Cell Mol Life Sci 2018; 75:589-595. [PMID: 29164271 PMCID: PMC5769817 DOI: 10.1007/s00018-017-2715-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/07/2017] [Accepted: 11/15/2017] [Indexed: 02/07/2023]
Abstract
In addition to their established role as a physical barrier to invading pathogens and other harmful agents, intestinal epithelial cells (IEC) are actively involved in local immune reactions. In the past years, evidence has accumulated suggesting the role of IEC in the immunopathology of intestinal inflammatory disorders (IBD). Recent advances in research on bacteriophages strongly suggest that-in addition to their established antibacterial activity-they have immunomodulating properties that are potentially useful in the clinic. We suggest that these immunomodulating phage activities targeting IEC may open novel treatment perspectives in disorders of the alimentary tract, particularly IBD.
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Affiliation(s)
- Andrzej Górski
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences (HIIET PAS), 53-114, Wrocław, Poland.
- Department of Clinical Immunology, Transplantation Institute, Medical University of Warsaw, 02-006, Warsaw, Poland.
| | - Ewa Jończyk-Matysiak
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences (HIIET PAS), 53-114, Wrocław, Poland
| | - Marzanna Łusiak-Szelachowska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences (HIIET PAS), 53-114, Wrocław, Poland
| | - Ryszard Międzybrodzki
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences (HIIET PAS), 53-114, Wrocław, Poland
- Department of Clinical Immunology, Transplantation Institute, Medical University of Warsaw, 02-006, Warsaw, Poland
| | - Beata Weber-Dąbrowska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences (HIIET PAS), 53-114, Wrocław, Poland
| | - Jan Borysowski
- Department of Clinical Immunology, Transplantation Institute, Medical University of Warsaw, 02-006, Warsaw, Poland
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40
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Gokulan K, Cerniglia CE, Thomas C, Pineiro SA, Khare S. Effects of residual levels of tetracycline on the barrier functions of human intestinal epithelial cells. Food Chem Toxicol 2017; 109:253-263. [DOI: 10.1016/j.fct.2017.09.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 08/30/2017] [Accepted: 09/02/2017] [Indexed: 12/12/2022]
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41
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Zhang S, Langer R, Traverso G. Nanoparticulate Drug Delivery Systems Targeting Inflammation for Treatment of Inflammatory Bowel Disease. NANO TODAY 2017; 16:82-96. [PMID: 31186671 PMCID: PMC6557461 DOI: 10.1016/j.nantod.2017.08.006] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic, idiopathic inflammatory set of conditions that can affect the entire gastrointestinal (GI) tract and is associated with an increased risk of colorectal cancer. To date there is no curative therapy for IBD; therefore life-long medication can be necessary for IBD management if surgery is to be avoided. Drug delivery systems specific to the colon have improved IBD treatment and several such systems are available to patients. However, current delivery systems for IBD do not target drugs to the site of inflammation, which leads to frequent dosing and potentially severe side effects that can adversely impact patients' adherence to medication. There is a need for novel drug delivery systems that can target drugs to the site of inflammation, prolong local drug availability, improve therapeutic efficacy, and reduce drug side effects. Nanoparticulate (NP) systems are attractive in designing targeted drug delivery systems for the treatment of IBD because of their unique physicochemical properties and capability of targeting the site of disease. This review analyzes the microenvironment at the site of inflammation in IBD, highlighting the pathophysiological features as possible cues for targeted delivery; discusses different strategies and mechanisms of NP targeting IBD, including size-, charge-, ligand-receptor, degradation- and microbiome-mediated approaches; and summarizes recent progress on using NPs towards improved therapies for IBD. Finally, challenges and future directions in this field are presented to advance the development of targeted drug delivery for IBD treatment.
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Affiliation(s)
- Sufeng Zhang
- The David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Robert Langer
- The David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Media Lab, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Giovanni Traverso
- Media Lab, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
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42
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Young RS, Wiles BM, McGee DW. IL-22 Enhances TNF-α- and IL-1-Induced CXCL8 Responses by Intestinal Epithelial Cell Lines. Inflammation 2017; 40:1726-1734. [PMID: 28656529 PMCID: PMC5711566 DOI: 10.1007/s10753-017-0614-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
IL-22 is known to induce intestinal epithelial cells (IECs) to produce the chemokine CXCL8. However, IECs exist in a cytokine network during mucosal inflammation, such that IL-22 must act in concert with potent pro-inflammatory cytokines like TNF-α and IL-1. Our studies show that IL-22 alone increased CXCL8 secretion from HT-29 cells, but the levels were minimal compared to that of the cells treated with TNF-α or IL-1 only. More significantly, co-stimulation with IL-22 and TNF-α enhanced both CXCL8 secretion and mRNA levels well over that of TNF-α stimulation alone. A similar enhancing effect was seen with IL-22- and IL-1-stimulated CXCL8 secretion. The enhancing effect of IL-22 on TNF-α-induced CXCL8 secretion was then determined to require the p38 MAPK, but not STAT1/3, PI3K, Akt, c-Jun N-terminal kinase, ERK, or IκBα. These experiments indicate that more significant effect of IL-22 on IECs responses may not be in inducing CXCL8 by itself, but in enhancing TNF-α- and IL-1-induced CXCL8 secretion to augment the contribution of IECs to local inflammatory responses.
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Affiliation(s)
- Rebecca S Young
- Department of Biological Sciences, Binghamton University (SUNY), Binghamton, NY, 13902-6000, USA
| | - Brody M Wiles
- Department of Biological Sciences, Binghamton University (SUNY), Binghamton, NY, 13902-6000, USA
| | - Dennis W McGee
- Department of Biological Sciences, Binghamton University (SUNY), Binghamton, NY, 13902-6000, USA.
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43
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Liu F, Bu HF, Geng H, De Plaen IG, Gao C, Wang P, Wang X, Kurowski JA, Yang H, Qian J, Tan XD. Sirtuin-6 preserves R-spondin-1 expression and increases resistance of intestinal epithelium to injury in mice. Mol Med 2017; 23:272-284. [PMID: 29387864 PMCID: PMC5654826 DOI: 10.2119/molmed.2017.00085] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 08/28/2017] [Indexed: 12/25/2022] Open
Abstract
Sirtuin-6 (Sirt6) is a critical epigenetic regulator, but its function in the gut is unknown. Here, we studied the role of intestinal epithelial Sirt6 in colitis-associated intestinal epithelial injury. We found that Sirt6, which is predominantly expressed in epithelial cells in intestinal crypts, is decreased in colitis in both mice and humans. Colitis-derived inflammatory mediators including interferon-γ and reactive oxygen species strongly inhibited Sirt6 protein expression in young adult mouse colonocyte (YAMC) cells. The susceptibility of the cells to injurious insults was increased after knockdown of Sirt6 expression. In contrast, YAMC cells with Sirt6 overexpression exhibited more resistance to injurious insult. Furthermore, intestinal epithelial-specific Sirt6 (Sirt6IEC-KO) knockout mice exhibited greater susceptibility to dextran sulfate sodium (DSS)-induced colitis. RNA sequencing transcriptome analysis revealed that inflammatory mediators such as tumor necrosis factor (TNF)-α suppressed expression of R-spondin-1 (Rspo1, a critical growth factor for intestinal epithelial cells) in Sirt6-silenced YAMC cells in vitro. In addition, lipopolysaccharide was found to inhibit colonic Rspo1 expression in Sirt6IEC-KO mice but not their control littermates. Furthermore, Sirt6IEC-KO mice with DSS-induced colitis also exhibited in a significant decrease in Rspo1 expression in colons. In vitro, knockdown of Rspo1 attenuated the effect of ectopic expression of Sirt6 on protection of YAMC cells against cell death challenges. In conclusion, Sirt6 plays an important role in protecting intestinal epithelial cells against inflammatory injury in a mechanism associated with preserving Rspo1 levels in the cells.
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Affiliation(s)
- Fangyi Liu
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Heng-Fu Bu
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Hua Geng
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Isabelle G De Plaen
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Chao Gao
- Center of Clinical Reproductive Medicine, State Key Laboratory of Reproductive Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People’s Republic of China
| | - Peng Wang
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Xiao Wang
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Jacob A Kurowski
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Hong Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Jiaming Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Xiao-Di Tan
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s Research Institute, Ann and Robert H Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
- Department of Research and Development, Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
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Nissilä E, Korpela K, Lokki AI, Paakkanen R, Jokiranta S, de Vos WM, Lokki ML, Kolho KL, Meri S. C4B gene influences intestinal microbiota through complement activation in patients with paediatric-onset inflammatory bowel disease. Clin Exp Immunol 2017; 190:394-405. [PMID: 28832994 DOI: 10.1111/cei.13040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2017] [Indexed: 12/19/2022] Open
Abstract
Complement C4 genes are linked to paediatric inflammatory bowel disease (PIBD), but the mechanisms have remained unclear. We examined the influence of C4B gene number on intestinal microbiota and in-vitro serum complement activation by intestinal microbes in PIBD patients. Complement C4A and C4B gene numbers were determined by genomic reverse transcription-polymerase chain reaction (RT-PCR) from 64 patients with PIBD (Crohn's disease or ulcerative colitis). The severity of the disease course was determined from faecal calprotectin levels. Intestinal microbiota was assessed using the HITChip microarray. Complement reactivity in patients was analysed by incubating their sera with Yersinia pseudotuberculosis and Akkermansia muciniphila and determining the levels of C3a and soluble terminal complement complex (SC5b-9) using enzyme immunoassays. The microbiota diversity was wider in patients with no C4B genes than in those with one or two C4B genes, irrespective of intestinal inflammation. C4B and total C4 gene numbers correlated positively with soluble terminal complement complex (TCC, SC5b-9) levels when patient serum samples were stimulated with bacteria. Our results suggest that the C4B gene number associates positively with inflammation in patients with PIBD. Multiple copies of the C4B gene may thus aggravate the IBD-associated dysbiosis through escalated complement reactivity towards the microbiota.
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Affiliation(s)
- E Nissilä
- Immunobiology, Research Programs Unit, University of Helsinki, Helsinki, Finland.,Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - K Korpela
- Immunobiology, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - A I Lokki
- Immunobiology, Research Programs Unit, University of Helsinki, Helsinki, Finland.,Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
| | - R Paakkanen
- Transplantation Laboratory, Medicum, University of Helsinki, Helsinki, Finland
| | - S Jokiranta
- Immunobiology, Research Programs Unit, University of Helsinki, Helsinki, Finland.,Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - W M de Vos
- Immunobiology, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - M-L Lokki
- Transplantation Laboratory, Medicum, University of Helsinki, Helsinki, Finland
| | - K-L Kolho
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - S Meri
- Immunobiology, Research Programs Unit, University of Helsinki, Helsinki, Finland.,Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland.,Helsinki University Hospital Laboratory (HUSLAB), Helsinki, Finland
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45
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Kuenzig ME, Barnabe C, Seow CH, Eksteen B, Negron ME, Rezaie A, Panaccione R, Benchimol EI, Sadatsafavi M, Aviña-Zubieta JA, Kaplan GG. Asthma Is Associated With Subsequent Development of Inflammatory Bowel Disease: A Population-based Case-Control Study. Clin Gastroenterol Hepatol 2017; 15:1405-1412.e3. [PMID: 28344063 DOI: 10.1016/j.cgh.2017.02.042] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/12/2017] [Accepted: 02/14/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Asthma and the inflammatory bowel diseases (IBD) each arise through complex interactions between genetic and environmental factors, and share many environmental risk factors. We examined the association between asthma and Crohn's disease or ulcerative colitis. METHODS We performed a population-based case-control study using health administrative data from the province of Alberta, Canada. The odds of a diagnosis of asthma preceding the diagnosis of either Crohn's disease (N = 3087) or ulcerative colitis (N = 2377) were compared with the odds of diagnosis of asthma among persons without IBD (N = 402,800) using logistic regression. Effect measure modification by age at diagnosis of IBD (16 years or less, 17-40 years, or older than 40 years) was tested using a likelihood ratio test. RESULTS A diagnosis of asthma was associated with increased odds of incident Crohn's disease (adjusted odds ratio [OR], 1.45; 95% confidence interval [CI], 1.31-1.60). No effect measure modification was observed for age at diagnosis for Crohn's disease (P = .42). However, we observed effect measure modification by age at diagnosis for ulcerative colitis (P = .0103), with an adjusted OR of 1.49 (95% CI, 1.08-2.07) among individuals diagnosed at an age of 16 years or less (OR) and an adjusted OR of 1.57 (95% CI, 1.31-1.89) among individuals diagnosed at an age older than 40 years. However, there was no association between asthma and ulcerative colitis among individuals diagnosed between ages 17 and 40 (adjusted OR, 1.05; 95% CI, 0.86-1.26). CONCLUSIONS In a population-based case-control study, we associated asthma with Crohn's disease, and with early and late-onset ulcerative colitis.
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Affiliation(s)
- M Ellen Kuenzig
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Synder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
| | - Cheryl Barnabe
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
| | - Cynthia H Seow
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Bertus Eksteen
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Synder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Maria E Negron
- Department of Production Animal Health, University of Calgary Faculty of Veterinary Medicine, Calgary Alberta, Canada
| | - Ali Rezaie
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai, Los Angeles, California
| | - Remo Panaccione
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Eric I Benchimol
- CHEO Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Eastern Ontario, Ottawa, Canada; Department of Pediatrics and School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Canada
| | - Mohsen Sadatsafavi
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, Canada
| | - J Antonio Aviña-Zubieta
- Arthritis Research Canada, Division of Rheumatology, University of British Columbia, BC, Canada
| | - Gilaad G Kaplan
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Synder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada.
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46
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Barnicle A, Seoighe C, Greally JM, Golden A, Egan LJ. Inflammation-associated DNA methylation patterns in epithelium of ulcerative colitis. Epigenetics 2017; 12:591-606. [PMID: 28557546 DOI: 10.1080/15592294.2017.1334023] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Aberrant DNA methylation patterns have been reported in inflamed tissues and may play a role in disease. We studied DNA methylation and gene expression profiles of purified intestinal epithelial cells from ulcerative colitis patients, comparing inflamed and non-inflamed areas of the colon. We identified 577 differentially methylated sites (false discovery rate <0.2) mapping to 210 genes. From gene expression data from the same epithelial cells, we identified 62 differentially expressed genes with increased expression in the presence of inflammation at prostate cancer susceptibility genes PRAC1 and PRAC2. Four genes showed inverse correlation between methylation and gene expression; ROR1, GXYLT2, FOXA2, and, notably, RARB, a gene previously identified as a tumor suppressor in colorectal adenocarcinoma as well as breast, lung and prostate cancer. We highlight targeted and specific patterns of DNA methylation and gene expression in epithelial cells from inflamed colon, while challenging the importance of epithelial cells in the pathogenesis of chronic inflammation.
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Affiliation(s)
- Alan Barnicle
- a Clinical Pharmacology, School of Medicine, National University of Ireland , Galway , Ireland.,b School of Mathematics, Statistics and Applied Mathematics, National University of Ireland , Galway , Ireland
| | - Cathal Seoighe
- b School of Mathematics, Statistics and Applied Mathematics, National University of Ireland , Galway , Ireland
| | - John M Greally
- c Center of Epigenomics and Department of Genetics (Division of Computational Genetics) , Albert Einstein College of Medicine, Morris Park Avenue , Bronx , NY , USA
| | - Aaron Golden
- b School of Mathematics, Statistics and Applied Mathematics, National University of Ireland , Galway , Ireland.,c Center of Epigenomics and Department of Genetics (Division of Computational Genetics) , Albert Einstein College of Medicine, Morris Park Avenue , Bronx , NY , USA.,d Department of Mathematical Sciences , Yeshiva University , 2495 Amsterdam Avenue, New York , NY , USA
| | - Laurence J Egan
- a Clinical Pharmacology, School of Medicine, National University of Ireland , Galway , Ireland
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47
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Yau YY, Leong RWL, Pudipeddi A, Redmond D, Wasinger VC. Serological Epithelial Component Proteins Identify Intestinal Complications in Crohn's Disease. Mol Cell Proteomics 2017; 16:1244-1257. [PMID: 28490445 DOI: 10.1074/mcp.m116.066506] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 04/09/2017] [Indexed: 12/12/2022] Open
Abstract
Crohn's Disease (CD) is a relapsing inflammation of the gastrointestinal tract that affects a young working age population and is increasing in developing countries. Half of all sufferers will experience stricturing or fistulizing intestinal complications that require extensive surgical interventions and neither genes nor clinical risk factors can predict this debilitating natural history. We applied discovery and verification phase studies as part of an NCI-FDA modeled biomarker pipeline to identify differences in the low-mass (<25kDa) blood-serum proteome between CD behavioral phenotypes. A significant enrichment of epithelial component proteins was identified in CD patients with intestinal complications using quantitative proteomic profiling with label-free Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS). DAVID 6.7 (NIH) was used for functional annotation analysis of detected proteins and immunoblotting and multiple reaction monitoring (MRM) to verify a priori findings in a secondary independent cohort of complicated CD (CCD), uncomplicated inflammatory CD (ICD), Th1/17 pathway inflammation controls (rheumatoid arthritis), inflammatory bowel disease controls (ulcerative colitis), and healthy controls. Seventy-six high-confidence serum proteins were modulated in CCD versus ICD by LC-MS/MS (p < 0.05, FDR q<0.01), annotating to pathways of epithelial barrier homeostasis (p < 0.01). In verification phase, a putative serology panel developed from discovery proteomics data consisting of desmoglein-1, desmoplakin, and fatty acid-binding protein 5 (FABP5) distinguished CCD from all other groups (p = 0.041) and discriminated complication in CD (70% sensitivity and 72.5% specificity at score ≥1.907, AUC = 0.777, p = 0.007). An MRM assay secondarily confirmed increased FABP5 levels in CCD (p < 0.001). In a longitudinal subanalysis-cohort, FABP5 levels were stable over a two-month period with no behavioral changes (p = 0.099). These studies along the biomarker development pipeline provide substantial proof-of-principle that a blood test can be developed specific to transmural intestinal injury. Data are available via the PRIDE proteomics data repository under identifier PXD001821 and PeptideAtlas with identifier PASS00661.
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Affiliation(s)
- Yunki Y Yau
- From the: ‡Bioanalytical Mass Spectrometry Facility, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052 Australia.,§Concord Repatriation General Hospital, Gastroenterology and Liver Services, Hospital Rd, Concord, NSW 2139 Australia
| | - Rupert W L Leong
- §Concord Repatriation General Hospital, Gastroenterology and Liver Services, Hospital Rd, Concord, NSW 2139 Australia.,¶Department of Gastroenterology, Bankstown-Lidcombe Hospital, Eldridge Rd, Bankstown, NSW 2200 Australia
| | - Aviv Pudipeddi
- From the: ‡Bioanalytical Mass Spectrometry Facility, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052 Australia
| | - Diane Redmond
- ¶Department of Gastroenterology, Bankstown-Lidcombe Hospital, Eldridge Rd, Bankstown, NSW 2200 Australia
| | - Valerie C Wasinger
- From the: ‡Bioanalytical Mass Spectrometry Facility, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052 Australia;
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48
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Dietary Protein and Amino Acid Supplementation in Inflammatory Bowel Disease Course: What Impact on the Colonic Mucosa? Nutrients 2017; 9:nu9030310. [PMID: 28335546 PMCID: PMC5372973 DOI: 10.3390/nu9030310] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel diseases (IBD), after disease onset, typically progress in two cyclically repeated phases, namely inflammatory flare and remission, with possible nutritional status impairment. Some evidence, either from epidemiological, clinical, and experimental studies indicate that the quantity and the quality of dietary protein consumption and amino acid supplementation may differently influence the IBD course according to the disease phases. For instance, although the dietary protein needs for mucosal healing after an inflammatory episode remain undetermined, there is evidence that amino acids derived from dietary proteins display beneficial effects on this process, serving as building blocks for macromolecule synthesis in the wounded mucosal area, energy substrates, and/or precursors of bioactive metabolites. However, an excessive amount of dietary proteins may result in an increased intestinal production of potentially deleterious bacterial metabolites. This could possibly affect epithelial repair as several of these bacterial metabolites are known to inhibit colonic epithelial cell respiration, cell proliferation, and/or to affect barrier function. In this review, we present the available evidence about the impact of the amount of dietary proteins and supplementary amino acids on IBD onset and progression, with a focus on the effects reported in the colon.
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49
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Jiang XG, Sun K, Liu YY, Yan L, Wang MX, Fan JY, Mu HN, Li C, Chen YY, Wang CS, Han JY. Astragaloside IV ameliorates 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis implicating regulation of energy metabolism. Sci Rep 2017; 7:41832. [PMID: 28150820 PMCID: PMC5288804 DOI: 10.1038/srep41832] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 12/28/2016] [Indexed: 02/07/2023] Open
Abstract
Dysfunction of energy metabolism is involved in inflammatory bowel disease (IBD). This study was designed to investigate the potential of astragaloside IV (ASIV), an active ingredient of Radix Astragalus, to ameliorate colonic mucosal injury, with focusing on the implication of energy restoration in the underlying mechanism. Experimental colitis model was established in rats by injecting 2,4,6-trinitrobenzene sulfonic acid (TNBS) through anus. After 24 hours, ASIV was administrated once daily by gavage for 6 days. On day 1 and day 7, colon tissue was collected for macroscopic and histological examination, ELISA, Western blot and immunohistochemical analysis. TNBS impaired colonic mucosa with an injured epithelial architecture, increased inflammatory cell infiltration, and decreased colonic blood flow. Lgr5 positive cell number in crypt and β-catenin nuclear translocation were down-regulated by TNBS treatment. TNBS induced epithelial F-actin disruption and junctional protein degradation. Furthermore, adenosine triphosphate (ATP) content and ATP synthase subunit β expression in the colon tissue were significantly decreased after TNBS stimulation. All of the aforementioned alterations were relieved by ASIV post-treatment. The present study revealed that ASIV promoted mucosal healing process in TNBS-induced colitis, which was most likely attributed to regulating energy metabolism.
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Affiliation(s)
- Xu-Guang Jiang
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Shandong college of Traditional Chinese Medicine, Yantai, Shandong, China
| | - Kai Sun
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Yu-Ying Liu
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Li Yan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Ming-Xia Wang
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Jing-Yu Fan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Hong-Na Mu
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Chong Li
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Yuan-Yuan Chen
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Chuan-She Wang
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
| | - Jing-Yan Han
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine, Beijing 100191, China.,Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine, Beijing 100191, China
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50
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Jing W, Gao X, Han B, Wei B, Hu N, Li S, Yan R, Wang Y. Mori Cortex regulates P-glycoprotein in Caco-2 cells and colons from rats with experimental colitis via direct and gut microbiota-mediated mechanisms. RSC Adv 2017. [DOI: 10.1039/c6ra25448a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mori cortex enhances intestinal epithelial barrier function by up-regulating P-glycoproteinviadirect and gut microbiota-mediated mechanisms.
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Affiliation(s)
- Wanghui Jing
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Xuejiao Gao
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Beilei Han
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Bin Wei
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Nan Hu
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Sai Li
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Ru Yan
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
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