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Shah B, Solanki N. Aegeline attenuates TNBS-induced colitis by suppressing the NFƙB-mediated NLRP3 inflammasome pathway in mice. Inflammopharmacology 2024:10.1007/s10787-024-01493-0. [PMID: 38767762 DOI: 10.1007/s10787-024-01493-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024]
Abstract
A chronic inflammatory condition of the intestine, ulcerative colitis (UC), is challenging to successfully manage once diagnosed. Currently, available medical therapies for UC exhibit minimal efficacy with unacceptable side effects, while inventive biological agents are expensive and yet not well accepted by patients. Discovering more effective and safer treatments to treat UC is therefore essential. One of the primary alkaloids found in Aegle marmelos, aegeline, has anti-inflammatory and antioxidant properties as well as being able to suppress several pro-inflammatory cytokines responsible for inflammation. The study aimed to investigate the effectiveness of aegeline in alleviating 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis through the NFƙB-mediated NLRP3 inflammasome pathway. Mice were randomly allocated into six groups, Normal control (NC), Model control (MC-TNBS, 2,4,6-trinitrobenzene sulfonic acid), STD (TNBS + sulfasalazine 100 mg/kg), AG1, AG2, and AG3 (TNBS + aegeline 5, 10, 20 mg/kg) respectively. Physical parameters such as a change in body weight, stool consistency, rectal bleeding, colon length, myeloperoxidase (MPO) levels and nitric oxide (NO) levels, and disease activity index (DAI) were assessed and supporting gene expression studies of various pro-inflammatory cytokines and enzymes were evaluated and histopathological changes observed. Administration of aegeline (10, 20 mg/kg) was found to be effective in colon protection by lowering the disease activity score and myeloperoxidase level and improving other physical parameters. Aegeline in high dose significantly downregulated the gene expression of NFƙB, iNOS, COX-2, NLRP3, IL-1β, and IL-18, conferring great anti-inflammatory potential. Suggestive of the findings, aegeline reduced the damage to the colon by downregulating transcriptional genes and enzymes leading to inflammation and mitigated TNBS-induced colitis probably through the NFƙB-mediated NLRP3 inflammasome pathway.
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Affiliation(s)
- Bhagyabhumi Shah
- Department of Pharmacology, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), CHARUSAT Campus, Changa, 388421, Gujarat, India.
| | - Nilay Solanki
- Department of Pharmacology, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), CHARUSAT Campus, Changa, 388421, Gujarat, India.
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2
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Banerjee P, Senapati S. Translational Utility of Organoid Models for Biomedical Research on Gastrointestinal Diseases. Stem Cell Rev Rep 2024:10.1007/s12015-024-10733-3. [PMID: 38758462 DOI: 10.1007/s12015-024-10733-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2024] [Indexed: 05/18/2024]
Abstract
Organoid models have recently been utilized to study 3D human-derived tissue systems to uncover tissue architecture and adult stem cell biology. Patient-derived organoids unambiguously provide the most suitable in vitro system to study disease biology with the actual genetic background. With the advent of much improved and innovative approaches, patient-derived organoids can potentially be used in regenerative medicine. Various human tissues were explored to develop organoids due to their multifold advantage over the conventional in vitro cell line culture approach and in vivo models. Gastrointestinal (GI) tissues have been widely studied to establish organoids and organ-on-chip for screening drugs, nutraceuticals, and other small molecules having therapeutic potential. The function of channel proteins, transporters, and transmembrane proteins was also explained. The successful application of genome editing in organoids using the CRISPR-Cas approach has been reported recently. GI diseases such as Celiac disease (CeD), Inflammatory bowel disease (IBD), and common GI cancers have been investigated using several patient-derived organoid models. Recent advancements on organoid bio-banking and 3D bio-printing contributed significantly in personalized disease management and therapeutics. This article reviews the available literature on investigations and translational applications of patient-derived GI organoid models, notably on elucidating gut-microbial interaction and epigenetic modifications.
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Affiliation(s)
- Pratibha Banerjee
- Immunogenomics Laboratory, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, India
| | - Sabyasachi Senapati
- Immunogenomics Laboratory, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, India.
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Garrido G, Garrido-Suárez BB, Martínez-Tapia N, Valdés-González M, Ortega-Mardones A. Antidiarrheal effect of Psidium guajava L. extract in acute diarrhea: a systematic review. J Sci Food Agric 2024. [PMID: 38578668 DOI: 10.1002/jsfa.13515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 01/21/2024] [Accepted: 04/03/2024] [Indexed: 04/06/2024]
Abstract
Acute diarrheal diseases are a leading cause of childhood mortality and morbidity worldwide. Psidium guajava has been globally used for its antidiarrheal potential. We conducted a systematic review of scientific articles published up to the year 2021, which included in vivo pre-clinical tests and clinical trials involving patients with acute infectious diarrhea to verify the antidiarrheal, antibacterial and antispasmodic effects of galenic preparations or phytopharmaceuticals from P. guajava. PRISMA and Rayyan were used as tools for the selection of studies collected in four databases (Pubmed, Scopus, Web of Science and Science Direct). The keywords used to carry out the search were: 'Psidium guajava', 'guava', 'antidiarrhe*' and 'diarrhe*', joined by Boolean operators 'OR' or 'AND'. The characteristics of studies in animal models of acute diarrhea induction, as well as in vivo and in vitro motility and microbiological tests linked with its main pathophysiological mechanisms, were collected. Twenty-three articles were included. Twenty (87%) of these reported heterogenic preclinical studies, predominating pharmacological studies of efficacy against conventional antidiarrheal agents, which utilized relevant outcomes and models of infectious diarrhea from the top pathogens in the clinic along with classical castor oil-induced diarrhea associated with motility tests. Only three articles (13%) corresponded to clinical trials investigating the efficacy, dose and safety of these preparations. Most studies reported positive results and significant mechanistic evidence from antibacterial, anti-motility, anti-secretory and protective/anti-inflammatory perspectives. However, further studies are needed to define the clinical significance and safety treatment with P. guajava extracts. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Gabino Garrido
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias, Universidad Católica del Norte, Antofagasta, Chile
| | | | - Nicolás Martínez-Tapia
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias, Universidad Católica del Norte, Antofagasta, Chile
| | - Marisela Valdés-González
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias, Universidad Católica del Norte, Antofagasta, Chile
| | - Andrea Ortega-Mardones
- Departamento Procesos de Diagnóstico y Evaluación, Facultad Ciencias de la Salud, Universidad Católica de Temuco, Temuco, Chile
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Tong G, Qian H, Li D, Li J, Chen J, Li X, Tan Z. Intestinal Flora Imbalance Induced by Antibiotic Use in Rats. J Inflamm Res 2024; 17:1789-1804. [PMID: 38528993 PMCID: PMC10961240 DOI: 10.2147/jir.s447098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 03/14/2024] [Indexed: 03/27/2024] Open
Abstract
Aim This study aims to explore the effect of different doses of antibiotics on rats in order to observe alterations in their fecal microbiota, inflammatory changes in the colonic mucosa and four types of inflammatory markers in blood serum. Methods Our methodology involved separating 84 female Sprague Dawley rats into groups A-G, with each group consisting of 12 rats. We collected the rat feces for analysis, using a distinct medium for bacterial cultivation and counting colonies under a microscope. On the 11th and 15th days of the experiment, half of the rats from each group were euthanized and 5 mL of abdominal aortic blood and colon tissues were collected. Inflammations changes of colon were observed and assessed by pathological Hematoxylin Eosin (HE) staining. Enzyme-linked immune sorbent assay (ELISA) was adopted for detecting C-reactive protein (CRP), IL-6, IL1-β and TNF-α. Results Our findings revealed that the initial average weight of the rats did not differ between groups (p>0.05); but significant differences were observed between stool samples, water intake, food intake and weight (p=0.009, <0.001, 0.016 and 0.04, respectively) within two hours after the experiment. Additionally, there were notable differences among the groups in nine tested microbiota before and after weighting methods (all p<0.001). There were no difference in nine microbiota at day 1 (all p>0.05); at day 4 A/B (p=0.044), A/D (p<0.001), A/E (p=0.029); at day 8, all p<0.01, at day 11, only A/F exist significant difference (p<0.001); at day 14 only A/D has difference (p=0.045). Inflammation changes of colon were observed between groups A-G at days 11 and 15. Significant differences between all groups can be observed for CRP, IL-6, IL1-β and TNF-α (p<0.001). Conclusion This study suggests that antibiotics administration can disrupt the balance of bacteria in the rat gut ecosystem, resulting in an inflammatory response in their bloodstream and inducing inflammation changes of colon.
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Affiliation(s)
- Guojun Tong
- General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Hai Qian
- General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Dongli Li
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Jing Li
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Jing Chen
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Xiongfeng Li
- Orthopedic Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Zhenhua Tan
- General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
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Hiura K, Watanabe M, Hirose N, Nakano K, Okamura T, Sasaki H, Sasaki N. Mitotic Spindle Positioning (MISP) Facilitates Colorectal Cancer Progression by Forming a Complex with Opa Interacting Protein 5 (OIP5) and Activating the JAK2-STAT3 Signaling Pathway. Int J Mol Sci 2024; 25:3061. [PMID: 38474305 DOI: 10.3390/ijms25053061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/09/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
Patients with inflammatory bowel disease (IBD) who experience long-term chronic inflammation of the colon are at an increased risk of developing colorectal cancer (CRC). Mitotic spindle positioning (MISP), an actin-binding protein, plays a role in mitosis and spindle positioning. MISP is found on the apical membrane of the intestinal mucosa and helps stabilize and elongate microvilli, offering protection against colitis. This study explored the role of MISP in colorectal tumorigenesis using a database, human CRC cells, and a mouse model for colitis-induced colorectal tumors triggered by azoxymethane (AOM)/dextran sodium sulfate (DSS) treatment. We found that MISP was highly expressed in colon cancer patient tissues and that reduced MISP expression inhibited cell proliferation. Notably, MISP-deficient mice showed reduced colon tumor formation in the AOM/DSS-induced colitis model. Furthermore, MISP was found to form a complex with Opa interacting protein 5 (OIP5) in the cytoplasm, influencing the expression of OIP5 in a unidirectional manner. We also observed that MISP increased the levels of phosphorylated STAT3 in the JAK2-STAT3 signaling pathway, which is linked to tumorigenesis. These findings indicate that MISP could be a risk factor for CRC, and targeting MISP might provide insights into the mechanisms of colitis-induced colorectal tumorigenesis.
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Affiliation(s)
- Koki Hiura
- Laboratory of Laboratory Animal Science and Medicine, School of Veterinary Medicine, Kitasato University, Towada 034-8628, Japan
| | - Masaki Watanabe
- Laboratory of Laboratory Animal Science and Medicine, School of Veterinary Medicine, Kitasato University, Towada 034-8628, Japan
| | - Naoki Hirose
- The Institute of Experimental Animal Sciences, Faculty of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Kenta Nakano
- Department of Laboratory Animal Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Tadashi Okamura
- Department of Laboratory Animal Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Hayato Sasaki
- Laboratory of Laboratory Animal Science and Medicine, School of Veterinary Medicine, Kitasato University, Towada 034-8628, Japan
| | - Nobuya Sasaki
- Laboratory of Laboratory Animal Science and Medicine, School of Veterinary Medicine, Kitasato University, Towada 034-8628, Japan
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Nguyen OTP, Misun PM, Hierlemann A, Lohasz C. A Versatile Intestine-on-Chip System for Deciphering the Immunopathogenesis of Inflammatory Bowel Disease. Adv Healthc Mater 2024; 13:e2302454. [PMID: 38253407 DOI: 10.1002/adhm.202302454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 12/21/2023] [Indexed: 01/24/2024]
Abstract
The multifactorial nature of inflammatory bowel disease (IBD) necessitates reliable and practical experimental models to elucidate its etiology and pathogenesis. To model the intestinal microenvironment at the onset of IBD in vitro, it is important to incorporate relevant cellular and noncellular components before inducing stepwise pathogenic developments. A novel intestine-on-chip system for investigating multiple aspects of IBD's immunopathogenesis is presented. The system includes an array of tight and polarized barrier models formed from intestinal epithelial cells on an in-vivo-like subepithelial matrix within one week. The dynamic remodeling of the subepithelial matrix by cells or their secretome demonstrates the physiological relevance of the on-chip barrier models. The system design enables introduction of various immune cell types and inflammatory stimuli at specific locations in the same barrier model, which facilitates investigations of the distinct roles of each cell type in intestinal inflammation development. It is showed that inflammatory behavior manifests in an upregulated expression of inflammatory markers and cytokines (TNF-α). The neutralizing effect of the anti-inflammatory antibody Infliximab on levels of TNF-α and its inducible cytokines could be explicitly shown. Overall, an innovative approach to systematically developing a microphysiological system to comprehend immune-system-mediated disorders of IBD and to identify new therapeutic strategies is presented.
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Affiliation(s)
- Oanh T P Nguyen
- Bio Engineering Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
| | - Patrick M Misun
- Bio Engineering Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
| | - Andreas Hierlemann
- Bio Engineering Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
| | - Christian Lohasz
- Bio Engineering Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Klingelbergstrasse 48, Basel, CH-4056, Switzerland
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7
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Csukovich G, Wagner M, Walter I, Burger S, Tschulenk W, Steinborn R, Pratscher B, Burgener IA. Polarity reversal of canine intestinal organoids reduces proliferation and increases cell death. Cell Prolif 2024; 57:e13544. [PMID: 37697686 PMCID: PMC10849783 DOI: 10.1111/cpr.13544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/10/2023] [Accepted: 08/28/2023] [Indexed: 09/13/2023] Open
Abstract
Apical-out intestinal organoids are a relatively simple method of gaining access to the apical cell surface and have faced increasing scientific interest over the last few years. Apical-out organoids can thus be used for disease modelling to compare differing effects on the basolateral versus the apical cell surface. However, these 'inside-out' organoids die relatively quickly and cannot be propagated as long as their basal-out counterparts. Here, we show that apical-out organoids have drastically reduced proliferative potential, as evidenced by immunohistochemical staining and the incorporation of the thymidine analogue EdU. At the same time, cell death levels are increased. Nevertheless, these phenomena cannot be explained by an induction of differentiation, as the gene expression of key marker genes for various cell types does not change over time.
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Affiliation(s)
- Georg Csukovich
- Department for Companion Animals and Horses, Small Animal Internal MedicineVetmeduniViennaAustria
| | - Maximilian Wagner
- Department for Companion Animals and Horses, Small Animal Internal MedicineVetmeduniViennaAustria
| | - Ingrid Walter
- VetBioBank, VetCoreVetmeduniViennaAustria
- Institute of Morphology, Working Group HistologyVetmeduniViennaAustria
| | | | | | | | - Barbara Pratscher
- Department for Companion Animals and Horses, Small Animal Internal MedicineVetmeduniViennaAustria
| | - Iwan Anton Burgener
- Department for Companion Animals and Horses, Small Animal Internal MedicineVetmeduniViennaAustria
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Bautista GM, Cera AJ, Schoenauer RJ, Persiani M, Lakshminrusimha S, Chandrasekharan P, Gugino SF, Underwood MA, McElroy SJ. Paneth cell ontogeny in term and preterm ovine models. Front Vet Sci 2024; 11:1275293. [PMID: 38318150 PMCID: PMC10839032 DOI: 10.3389/fvets.2024.1275293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Introduction Paneth cells are critically important to intestinal health, including protecting intestinal stem cells, shaping the intestinal microbiome, and regulating host immunity. Understanding Paneth cell biology in the immature intestine is often modeled in rodents with little information in larger mammals such as sheep. Previous studies have only established the distribution pattern of Paneth cells in healthy adult sheep. Our study aimed to examine the ontogeny, quantification, and localization of Paneth cells in fetal and newborn lambs at different gestational ages and with perinatal transient asphyxia. We hypothesized that ovine Paneth cell distribution at birth resembles the pattern seen in humans (highest concentrations in the ileum) and that ovine Paneth cell density is gestation-dependent. Methods Intestinal samples were obtained from 126-127 (preterm, with and without perinatal transient asphyxia) and 140-141 (term) days gestation sheep. Samples were quantified per crypt in at least 100 crypts per animal and confirmed as Paneth cells through in immunohistochemistry. Results Paneth cells had significantly higher density in the ileum compared to the jejunum and were absent in the colon. Discussion Exposure to perinatal transient asphyxia acutely decreased Paneth cell numbers. These novel data support the possibility of utilizing ovine models for understanding Paneth cell biology in the fetus and neonate.
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Affiliation(s)
- Geoanna M. Bautista
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Anjali J. Cera
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Rebecca J. Schoenauer
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, IA, United States
| | - Michele Persiani
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Satyan Lakshminrusimha
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | | | - Sylvia F Gugino
- Department of Pediatrics, University of Buffalo, Buffalo, NY, United States
| | - Mark A. Underwood
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Steven J. McElroy
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
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Mohebali N, Weigel M, Hain T, Sütel M, Bull J, Kreikemeyer B, Breitrück A. Faecalibacterium prausnitzii, Bacteroides faecis and Roseburia intestinalis attenuate clinical symptoms of experimental colitis by regulating Treg/Th17 cell balance and intestinal barrier integrity. Biomed Pharmacother 2023; 167:115568. [PMID: 37793274 DOI: 10.1016/j.biopha.2023.115568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023] Open
Abstract
Ulcerative colitis (UC) is a severe inflammatory bowel disease (IBD) characterized by multifactorial complex disorders triggered by environmental factors, genetic susceptibility, and also gut microbial dysbiosis. Faecalibacterium prausnitzii, Bacteroides faecis, and Roseburia intestinalis are underrepresented species in UC patients, leading to the hypothesis that therapeutic application of those bacteria could ameliorate clinical symptoms and disease severity. Acute colitis was induced in mice by 3.5% DSS, and the commensal bacterial species were administered by oral gavage simultaneously with DSS treatment for up to 7 days. The signs of colonic inflammation, the intestinal barrier integrity, the proportion of regulatory T cells (Tregs), and the expression of pro-inflammatory and anti-inflammatory cytokines were quantified. The concentrations of SCFAs in feces were measured using Gas-liquid chromatography. The gut microbiome was analyzed in all treatment groups at the endpoint of the experiment. Results were benchmarked against a contemporary mesalazine treatment regime. We show that commensal species alone and in combination reduced disease activity index scores, inhibited colon shortening, strengthened the colonic epithelial barrier, and positively modulated tight junction protein expression. The expression level of pro-inflammatory cytokines was significantly reduced. Immune modulation occurred via inhibition of the loss of CD4 +CD25 +Treg cells in the spleen. Our study proofed that therapeutic application of F. prausnitzii, B. faecis, and R. intestinalis significantly ameliorated DSS-induced colitis at the level of clinical symptoms, histological inflammation, and immune status. Our data suggest that these positive effects are mediated by immune-modulatory pathways and influence on Treg/Th17 balance.
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Affiliation(s)
- Nooshin Mohebali
- Molecular Bacteriology, Institute of Medical Microbiology, Virology and Hygiene, University Medicine Rostock, 18057 Rostock, Germany
| | - Markus Weigel
- Institute of Medical Microbiology, Justus Liebig University, 35392 Giessen, Germany
| | - Torsten Hain
- Institute of Medical Microbiology, Justus Liebig University, 35392 Giessen, Germany; German Center for Infection Research (DZIF), Partner Site Giessen-Marburg-Langen, 35392 Giessen, Germany
| | - Mona Sütel
- IMD Institut für Medizinische Diagnostik, Berlin-Potsdam GbR, 12247 Berlin, Germany
| | - Jana Bull
- Molecular Bacteriology, Institute of Medical Microbiology, Virology and Hygiene, University Medicine Rostock, 18057 Rostock, Germany
| | - Bernd Kreikemeyer
- Molecular Bacteriology, Institute of Medical Microbiology, Virology and Hygiene, University Medicine Rostock, 18057 Rostock, Germany.
| | - Anne Breitrück
- Molecular Bacteriology, Institute of Medical Microbiology, Virology and Hygiene, University Medicine Rostock, 18057 Rostock, Germany
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Nayak SPRR, Dhivya LS, R R, Almutairi BO, Arokiyaraj S, Kathiravan MK, Arockiaraj J. Furan based synthetic chalcone derivative functions against gut inflammation and oxidative stress demonstrated in in-vivo zebrafish model. Eur J Pharmacol 2023; 957:175994. [PMID: 37574161 DOI: 10.1016/j.ejphar.2023.175994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/28/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
Inflammatory Bowel Disease (IBD) is a group of persistent intestinal illnesses resulting from bowel inflammation unrelated to infection. The prevalence of IBD is rising in industrialized countries, increasing healthcare costs. Whether naturally occurring or synthetic, chalcones possess a broad range of biological properties, including anti-inflammatory, anti-microbial, and antioxidant effects. This investigation focuses on DKO7 (E)-3-(4-(dimethylamino)phenyl)-1-(5-methylfuran-2-yl)prop-2-en-1-one, a synthesized chalcone with potential anti-inflammatory effects in a zebrafish model of intestinal inflammation induced by Dextran sodium sulfate (DSS). The in vitro study displayed dose-dependent anti-inflammatory as well as antioxidant properties of DKO7. Additionally, DKO7 protected zebrafish larvae against lipid peroxidation, reactive oxygen stress (ROS), and DSS-induced inflammation. Moreover, DKO7 reduced the expression of pro-inflammatory genes, including TNF-α, IL-1β, IL-6, and iNOS. Further, it reduced the levels of nitric oxide (NO) and lactate dehydrogenase (LDH) in the intestinal tissues of adult zebrafish and increased the levels of antioxidant enzymes such as Catalase (CAT) and superoxide dismutase (SOD). The protective effect of DKO7 against chemically (or DSS) induced intestinal inflammation was further verified using histopathological techniques in intestinal tissues. The furan-based chalcone derivative, DKO7, displayed antioxidant and anti-inflammatory properties. Also, DKO7 successfully reverses the DSS-induced intestinal damage in zebrafish. Overall, this study indicates the ability of DKO7 to alleviate DSS-induced gut inflammation in an in-vivo zebrafish.
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Affiliation(s)
- S P Ramya Ranjan Nayak
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India
| | - L S Dhivya
- Department of Pharmaceutical Chemistry, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India
| | - Reshma R
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India
| | - Bader O Almutairi
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Riyadh, Saudi Arabia
| | - Selvaraj Arokiyaraj
- Department of Food Science & Biotechnology, Sejong University, Seoul, 05006, South Korea
| | - M K Kathiravan
- Department of Pharmaceutical Chemistry, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India.
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India.
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11
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Bonetti A, Toschi A, Tugnoli B, Piva A, Grilli E. A blend of selected botanicals maintains intestinal epithelial integrity and reduces susceptibility to Escherichia coli F4 infection by modulating acute and chronic inflammation in vitro. Front Vet Sci 2023; 10:1275802. [PMID: 37841479 PMCID: PMC10570737 DOI: 10.3389/fvets.2023.1275802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/12/2023] [Indexed: 10/17/2023] Open
Abstract
In the pig production cycle, the most delicate phase is weaning, a sudden and early change that requires a quick adaptation, at the cost of developing inflammation and oxidation, especially at the intestinal level. In this period, pathogens like enterotoxigenic Escherichia coli (ETEC) contribute to the establishment of diarrhea, with long-lasting detrimental effects. Botanicals and their single bioactive components represent sustainable well-recognized tools in animal nutrition thanks to their wide-ranging beneficial functions. The aim of this study was to investigate the in vitro mechanism of action of a blend of botanicals (BOT), composed of thymol, grapeseed extract, and capsicum oleoresin, in supporting intestinal cell health during inflammatory challenges and ETEC infections. To reach this, we performed inflammatory and ETEC challenges on Caco-2 cells treated with BOT, measuring epithelial integrity, cellular oxidative stress, bacterial translocation and adhesion, gene expression levels, and examining tight junction distribution. BOT protected enterocytes against acute inflammation: while the challenge reduced epithelial tightness by 40%, BOT significantly limited its drop to 30%, also allowing faster recovery rates. In the case of chronic inflammation, BOT systematically improved by an average of 25% the integrity of challenged cells (p < 0.05). Moreover, when cells were infected with ETEC, BOT maintained epithelial integrity at the same level as an effective antibiotic and significantly reduced bacterial translocation by 1 log average. The mode of action of BOT was strictly related to the modulation of the inflammatory response, protecting tight junctions' expression and structure. In addition, BOT influenced ETEC adhesion to intestinal cells (-4%, p < 0.05), also thanks to the reduction of enterocytes' susceptibility to pathogens. Finally, BOT effectively scavenged reactive oxygen species generated by inflammatory and H2O2 challenges, thus alleviating oxidative stress by 40% compared to challenge (p < 0.05). These results support the employment of BOT in piglets at weaning to help manage bacterial infections and relieve transient or prolonged stressful states thanks to the modulation of host-pathogen interaction and the fine-tuning activity on the inflammatory tone.
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Affiliation(s)
- Andrea Bonetti
- Dipartimento di Scienze Mediche Veterinarie (DIMEVET), Università di Bologna, Ozzano dell’Emilia, Bologna, Italy
| | | | | | - Andrea Piva
- Dipartimento di Scienze Mediche Veterinarie (DIMEVET), Università di Bologna, Ozzano dell’Emilia, Bologna, Italy
- Vetagro S.p.A., Reggio Emilia, Italy
| | - Ester Grilli
- Dipartimento di Scienze Mediche Veterinarie (DIMEVET), Università di Bologna, Ozzano dell’Emilia, Bologna, Italy
- Vetagro Inc., Chicago, IL, United States
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12
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Dissanayake WMN, Chandanee MR, Lee SM, Heo JM, Yi YJ. Change in intestinal alkaline phosphatase activity is a hallmark of antibiotic-induced intestinal dysbiosis. Anim Biosci 2023; 36:1403-1413. [PMID: 37170509 PMCID: PMC10472154 DOI: 10.5713/ab.23.0052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/08/2023] [Accepted: 04/07/2023] [Indexed: 05/13/2023] Open
Abstract
OBJECTIVE Intestinal alkaline phosphatase (IAP) maintains intestinal homeostasis by detoxifying bacterial endotoxins and regulating gut microbiota, and lipid absorption. Antibiotics administered to animals can cause gut dysbiosis and barrier disruption affecting animal health. Therefore, the present study sought to investigate the role of IAP in the intestinal environment in dysbiosis. METHODS Young male mice aged 9 weeks were administered a high dose of antibiotics to induce dysbiosis. They were then sacrificed after 4 weeks to collect the serum and intestinal organs. The IAP activity in the ileum and the level of cytokines in the serum samples were measured. Quantitative real-time polymerase chain reaction analysis of RNA from the intestinal samples was performed using primers for tight junction proteins (TJPs) and proinflammatory cytokines. The relative intensity of IAP and toll-like receptor 4 (TLR4) in intestinal samples was evaluated by western blotting. RESULTS The IAP activity was significantly lower in the ileum samples of the dysbiosisinduced group compared to the control. The interleukin-1 beta, interleukin-6, and tumor necrosis factor-alpha concentrations were significantly higher in the ileum samples of the dysbiosis-induced group. The RNA expression levels of TJP2, claudin-3, and claudin-11 showed significantly lower values in the intestinal samples from the dysbiosis-induced mice. Results from western blotting revealed that the intensity of IAP expression was significantly lower in the ileum samples of the dysbiosis-induced group, while the intensity of TLR4 expression was significantly higher compared to that of the control group without dysbiosis. CONCLUSION The IAP activity and relative mRNA expression of the TJPs decreased, while the levels of proinflammatory cytokines increased, which can affect intestinal integrity and the function of the intestinal epithelial cells. This suggests that IAP is involved in mediating the intestinal environment in dysbiosis induced by antibiotics and is an enzyme that can potentially be used to maintain the intestinal environment in animal health care.
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Affiliation(s)
| | - Malavige Romesha Chandanee
- Department of Agricultural Education, College of Education, Sunchon National University, Suncheon 57922,
Korea
| | - Sang-Myeong Lee
- Laboratory of Veterinary Virology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644,
Korea
| | - Jung Min Heo
- College of Agriculture and Life Sciences, Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134,
Korea
| | - Young-Joo Yi
- Department of Agricultural Education, College of Education, Sunchon National University, Suncheon 57922,
Korea
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13
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Inda-Webb ME, Jimenez M, Liu Q, Phan NV, Ahn J, Steiger C, Wentworth A, Riaz A, Zirtiloglu T, Wong K, Ishida K, Fabian N, Jenkins J, Kuosmanen J, Madani W, McNally R, Lai Y, Hayward A, Mimee M, Nadeau P, Chandrakasan AP, Traverso G, Yazicigil RT, Lu TK. Sub-1.4 cm 3 capsule for detecting labile inflammatory biomarkers in situ. Nature 2023; 620:386-392. [PMID: 37495692 DOI: 10.1038/s41586-023-06369-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/26/2023] [Indexed: 07/28/2023]
Abstract
Transient molecules in the gastrointestinal tract such as nitric oxide and hydrogen sulfide are key signals and mediators of inflammation. Owing to their highly reactive nature and extremely short lifetime in the body, these molecules are difficult to detect. Here we develop a miniaturized device that integrates genetically engineered probiotic biosensors with a custom-designed photodetector and readout chip to track these molecules in the gastrointestinal tract. Leveraging the molecular specificity of living sensors1, we genetically encoded bacteria to respond to inflammation-associated molecules by producing luminescence. Low-power electronic readout circuits2 integrated into the device convert the light emitted by the encapsulated bacteria to a wireless signal. We demonstrate in vivo biosensor monitoring in the gastrointestinal tract of small and large animal models and the integration of all components into a sub-1.4 cm3 form factor that is compatible with ingestion and capable of supporting wireless communication. With this device, diseases such as inflammatory bowel disease could be diagnosed earlier than is currently possible, and disease progression could be more accurately tracked. The wireless detection of short-lived, disease-associated molecules with our device could also support timely communication between patients and caregivers, as well as remote personalized care.
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Affiliation(s)
- M E Inda-Webb
- Synthetic Biology Group, MIT Synthetic Biology Center, Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - M Jimenez
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Q Liu
- Electrical and Computer Engineering Department, Boston University, Boston, MA, USA
| | - N V Phan
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - J Ahn
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - C Steiger
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - A Wentworth
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - A Riaz
- Electrical and Computer Engineering Department, Boston University, Boston, MA, USA
| | - T Zirtiloglu
- Electrical and Computer Engineering Department, Boston University, Boston, MA, USA
| | - K Wong
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - K Ishida
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - N Fabian
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Comparative Medicine, MIT, Cambridge, MA, USA
| | - J Jenkins
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - J Kuosmanen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - W Madani
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - R McNally
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Y Lai
- Synthetic Biology Group, MIT Synthetic Biology Center, Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - A Hayward
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Comparative Medicine, MIT, Cambridge, MA, USA
| | - M Mimee
- Department of Microbiology, Biological Sciences Division and Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA
| | | | - A P Chandrakasan
- Department of Electrical Engineering and Computer Science, MIT, Cambridge, MA, USA
| | - G Traverso
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - R T Yazicigil
- Electrical and Computer Engineering Department, Boston University, Boston, MA, USA.
| | - T K Lu
- Synthetic Biology Group, MIT Synthetic Biology Center, Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Senti Biosciences, South San Francisco, CA, USA.
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14
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Liu H, Wang X. Esophageal organoids: applications and future prospects. J Mol Med (Berl) 2023; 101:931-945. [PMID: 37380866 DOI: 10.1007/s00109-023-02340-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/26/2023] [Accepted: 06/14/2023] [Indexed: 06/30/2023]
Abstract
Organoids have been developed in the last decade as a new research tool to simulate organ cell biology and disease. Compared to traditional 2D cell lines and animal models, experimental data based on esophageal organoids are more reliable. In recent years, esophageal organoids derived from multiple cell sources have been established, and relatively mature culture protocols have been developed. Esophageal inflammation and cancer are two directions of esophageal organoid modeling, and organoid models of esophageal adenocarcinoma, esophageal squamous cell carcinoma, and eosinophilic esophagitis have been established. The properties of esophageal organoids, which mimic the real esophagus, contribute to research in drug screening and regenerative medicine. The combination of organoids with other technologies, such as organ chips and xenografts, can complement the deficiencies of organoids and create entirely new research models that are more advantageous for cancer research. In this review, we will summarize the development of tumor and non-tumor esophageal organoids, the current application of esophageal organoids in disease modeling, regenerative medicine, and drug screening. We will also discuss the future prospects of esophageal organoids.
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Affiliation(s)
- Hongyuan Liu
- Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xianli Wang
- Shanghai Jiao Tong University, School of Public Health, Shanghai, 200025, China.
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15
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Lenders V, Koutsoumpou X, Phan P, Soenen SJ, Allegaert K, de Vleeschouwer S, Toelen J, Zhao Z, Manshian BB. Modulation of engineered nanomaterial interactions with organ barriers for enhanced drug transport. Chem Soc Rev 2023; 52:4672-4724. [PMID: 37338993 DOI: 10.1039/d1cs00574j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
The biomedical use of nanoparticles (NPs) has been the focus of intense research for over a decade. As most NPs are explored as carriers to alter the biodistribution, pharmacokinetics and bioavailability of associated drugs, the delivery of these NPs to the tissues of interest remains an important topic. To date, the majority of NP delivery studies have used tumor models as their tool of interest, and the limitations concerning tumor targeting of systemically administered NPs have been well studied. In recent years, the focus has also shifted to other organs, each presenting their own unique delivery challenges to overcome. In this review, we discuss the recent advances in leveraging NPs to overcome four major biological barriers including the lung mucus, the gastrointestinal mucus, the placental barrier, and the blood-brain barrier. We define the specific properties of these biological barriers, discuss the challenges related to NP transport across them, and provide an overview of recent advances in the field. We discuss the strengths and shortcomings of different strategies to facilitate NP transport across the barriers and highlight some key findings that can stimulate further advances in this field.
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Affiliation(s)
- Vincent Lenders
- Translational Cell and Tissue Research Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium.
| | - Xanthippi Koutsoumpou
- Translational Cell and Tissue Research Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium.
| | - Philana Phan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Stefaan J Soenen
- Translational Cell and Tissue Research Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium.
- NanoHealth and Optical Imaging Group, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Karel Allegaert
- Department of Hospital Pharmacy, Erasmus MC University Medical Center, CN Rotterdam, 3015, The Netherlands
- Clinical Pharmacology and Pharmacotherapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B3000 Leuven, Belgium
- Leuven Child and Youth Institute, KU Leuven, 3000 Leuven, Belgium
- Woman and Child, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Steven de Vleeschouwer
- Department of Neurosurgery, University Hospitals Leuven, Leuven, Belgium
- Laboratory of Experimental Neurosurgery and Neuroanatomy, Department of Neurosciences, KU Leuven, Leuven, Belgium
- Leuven Brain Institute (LBI), KU Leuven, Leuven, Belgium
| | - Jaan Toelen
- Leuven Child and Youth Institute, KU Leuven, 3000 Leuven, Belgium
- Woman and Child, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
- Department of Pediatrics, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Zongmin Zhao
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Bella B Manshian
- Translational Cell and Tissue Research Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium.
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16
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Windfelder AG, Steinbart J, Flögel U, Scherberich J, Kampschulte M, Krombach GA, Vilcinskas A. A quantitative micro-tomographic gut atlas of the lepidopteran model insect Manduca sexta. iScience 2023; 26:106801. [PMID: 37378344 PMCID: PMC10291339 DOI: 10.1016/j.isci.2023.106801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/26/2023] [Accepted: 04/28/2023] [Indexed: 06/29/2023] Open
Abstract
The tobacco hornworm is used extensively as a model system for ecotoxicology, immunology and gut physiology. Here, we established a micro-computed tomography approach based on the oral application of the clinical contrast agent iodixanol, allowing for a high-resolution quantitative analysis of the Manduca sexta gut. This technique permitted the identification of previously unknown and understudied structures, such as the crop or gastric ceca, and revealed the underlying complexity of the hindgut folding pattern, which is involved in fecal pellet formation. The acquired data enabled the volume rendering of all gut parts, the reliable calculation of their volumes, and the virtual endoscopy of the entire alimentary tract. It can provide information for accurate orientation in histology uses, enable quantitative anatomical phenotyping in three dimensions, and allow the calculation of locally effective midgut concentrations of applied chemicals. This atlas will provide critical insights into the evolution of the alimentary tract in lepidopterans.
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Affiliation(s)
- Anton G. Windfelder
- Branch Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Giessen, Germany
- Laboratory of Experimental Radiology, Justus Liebig University Giessen, Giessen, Germany
| | - Jessica Steinbart
- Laboratory of Experimental Radiology, Justus Liebig University Giessen, Giessen, Germany
- Department of Diagnostic and Interventional Radiology, University-Hospital Giessen, Germany
| | - Ulrich Flögel
- Experimental Cardiovascular Imaging, Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Jan Scherberich
- Laboratory of Experimental Radiology, Justus Liebig University Giessen, Giessen, Germany
| | - Marian Kampschulte
- Department of Diagnostic and Interventional Radiology, University-Hospital Giessen, Germany
| | - Gabriele A. Krombach
- Laboratory of Experimental Radiology, Justus Liebig University Giessen, Giessen, Germany
- Department of Diagnostic and Interventional Radiology, University-Hospital Giessen, Germany
| | - Andreas Vilcinskas
- Branch Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Giessen, Germany
- Institute for Insect Biotechnology, Justus Liebig University Giessen, Giessen, Germany
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17
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Schaaf CR, Polkoff KM, Carter A, Stewart AS, Sheahan B, Freund J, Ginzel J, Snyder JC, Roper J, Piedrahita JA, Gonzalez LM. A LGR5 reporter pig model closely resembles human intestine for improved study of stem cells in disease. FASEB J 2023; 37:e22975. [PMID: 37159340 PMCID: PMC10446885 DOI: 10.1096/fj.202300223r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/12/2023] [Accepted: 05/01/2023] [Indexed: 05/11/2023]
Abstract
Intestinal epithelial stem cells (ISCs) are responsible for intestinal epithelial barrier renewal; thereby, ISCs play a critical role in intestinal pathophysiology research. While transgenic ISC reporter mice are available, advanced translational studies lack a large animal model. This study validates ISC isolation in a new porcine Leucine Rich Repeat Containing G Protein-Coupled Receptor 5 (LGR5) reporter line and demonstrates the use of these pigs as a novel colorectal cancer (CRC) model. We applied histology, immunofluorescence, fluorescence-activated cell sorting, flow cytometry, gene expression quantification, and 3D organoid cultures to whole tissue and single cells from the duodenum, jejunum, ileum, and colon of LGR5-H2B-GFP and wild-type pigs. Ileum and colon LGR5-H2B-GFP, healthy human, and murine biopsies were compared by mRNA fluorescent in situ hybridization (FISH). To model CRC, adenomatous polyposis coli (APC) mutation was induced by CRISPR/Cas9 editing in porcine LGR5-H2B-GFP colonoids. Crypt-base, green fluorescent protein (GFP) expressing cells co-localized with ISC biomarkers. LGR5-H2B-GFPhi cells had significantly higher LGR5 expression (p < .01) and enteroid forming efficiency (p < .0001) compared with LGR5-H2B-GFPmed/lo/neg cells. Using FISH, similar LGR5, OLFM4, HOPX, LYZ, and SOX9 expression was identified between human and LGR5-H2B-GFP pig crypt-base cells. LGR5-H2B-GFP/APCnull colonoids had cystic growth in WNT/R-spondin-depleted media and significantly upregulated WNT/β-catenin target gene expression (p < .05). LGR5+ ISCs are reproducibly isolated in LGR5-H2B-GFP pigs and used to model CRC in an organoid platform. The known anatomical and physiologic similarities between pig and human, and those shown by crypt-base FISH, underscore the significance of this novel LGR5-H2B-GFP pig to translational ISC research.
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Affiliation(s)
- Cecilia R. Schaaf
- Department of Clinical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Kathryn M. Polkoff
- Department of Molecular Biomedical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Amber Carter
- Department of Molecular Biomedical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Amy S. Stewart
- Department of Clinical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Breanna Sheahan
- Department of Molecular Biomedical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - John Freund
- Department of Clinical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Joshua Ginzel
- Department of SurgeryDuke UniversityDurhamNorth CarolinaUSA
| | - Joshua C. Snyder
- Department of SurgeryDuke UniversityDurhamNorth CarolinaUSA
- Department of Cell BiologyDuke UniversityDurhamNorth CarolinaUSA
| | - Jatin Roper
- Department of Medicine, Division of GastroenterologyDuke UniversityDurhamNorth CarolinaUSA
- Department of Pharmacology and Cancer BiologyDuke UniversityDurhamNorth CarolinaUSA
| | - Jorge A. Piedrahita
- Department of Molecular Biomedical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Liara M. Gonzalez
- Department of Clinical Sciences, College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
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18
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Elhaj R, Reynolds JM. Chemical exposures and suspected impact on Gulf War Veterans. Mil Med Res 2023; 10:11. [PMID: 36882803 PMCID: PMC9993698 DOI: 10.1186/s40779-023-00449-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/24/2023] [Indexed: 03/09/2023] Open
Abstract
Gulf War Illness (GWI) encompass a spectrum of maladies specific to troops deployed during the Persian Gulf War (1990-1991). There are several hypothesized factors believed to contribute to GWI, including (but not limited to) exposures to chemical agents and a foreign environment (e.g., dust, pollens, insects, and microbes). Moreover, the inherent stress associated with deployment and combat has been associated with GWI. While the etiology of GWI remains uncertain, several studies have provided strong evidence that chemical exposures, especially neurotoxicants, may be underlying factors for the development of GWI. This mini style perspective article will focus on some of the major evidence linking chemical exposures to GWI development and persistence decades after exposure.
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Affiliation(s)
- Rami Elhaj
- Center for Cancer Biology, Immunology and Infection, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, 60064, USA
| | - Joseph M Reynolds
- Center for Cancer Biology, Immunology and Infection, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, 60064, USA.
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19
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Csukovich G, Kramer N, Pratscher B, Gotic I, Freund P, Hahn R, Himmler G, Brandt S, Burgener IA. Neutralising Effects of Different Antibodies on Clostridioides difficile Toxins TcdA and TcdB in a Translational Approach. Int J Mol Sci 2023; 24:ijms24043867. [PMID: 36835278 PMCID: PMC9962434 DOI: 10.3390/ijms24043867] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/30/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Given the high prevalence of intestinal disease in humans and animals, there is a strong need for clinically relevant models recapitulating gastrointestinal systems, ideally replacing in vivo models in accordance with the principles of the 3R. We established a canine organoid system and analysed the neutralising effects of recombinant versus natural antibodies on Clostridioides difficile toxins A and B in this in vitro system. Sulforhodamine B cytotoxicity assays in 2D and FITC-dextran barrier integrity assays on basal-out and apical-out organoids revealed that recombinant, but not natural antibodies, effectively neutralised C. difficile toxins. Our findings emphasise that canine intestinal organoids can be used to test different components and suggest that they can be further refined to also mirror complex interactions between the intestinal epithelium and other cells.
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Affiliation(s)
- Georg Csukovich
- Small Animal Internal Medicine, Department for Companion Animals and Horses, Vetmeduni, 1210 Vienna, Austria
| | - Nina Kramer
- Small Animal Internal Medicine, Department for Companion Animals and Horses, Vetmeduni, 1210 Vienna, Austria
| | - Barbara Pratscher
- Small Animal Internal Medicine, Department for Companion Animals and Horses, Vetmeduni, 1210 Vienna, Austria
| | | | - Patricia Freund
- Small Animal Internal Medicine, Department for Companion Animals and Horses, Vetmeduni, 1210 Vienna, Austria
| | - Rainer Hahn
- Department for Biotechnology, University of Natural Resources and Life Sciences Vienna, 1190 Vienna, Austria
| | | | - Sabine Brandt
- Research Group Oncology (RGO), Clinical Unit of Equine Surgery, Department for Companion Animals and Horses, Vetmeduni, 1210 Vienna, Austria
| | - Iwan Anton Burgener
- Small Animal Internal Medicine, Department for Companion Animals and Horses, Vetmeduni, 1210 Vienna, Austria
- Correspondence:
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20
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Yan G, Li S, Wen Y, Luo Y, Huang J, Chen B, Lv S, Chen L, He L, He M, Yang Q, Yu Z, Xiao W, Tang Y, Li W, Han J, Zhao F, Yu S, Kong F, Abbasi B, Yin H, Gu C. Characteristics of intestinal microbiota in C57BL/6 mice with non-alcoholic fatty liver induced by high-fat diet. Front Microbiol 2022; 13:1051200. [PMID: 36620001 PMCID: PMC9813237 DOI: 10.3389/fmicb.2022.1051200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction As a representation of the gut microbiota, fecal and cecal samples are most often used in human and animal studies, including in non-alcoholic fatty liver disease (NAFLD) research. However, due to the regional structure and function of intestinal microbiota, whether it is representative to use cecal or fecal contents to study intestinal microbiota in the study of NAFLD remains to be shown. Methods The NAFLD mouse model was established by high-fat diet induction, and the contents of the jejunum, ileum, cecum, and colon (formed fecal balls) were collected for 16S rRNA gene analysis. Results Compared with normal mice, the diversity and the relative abundance of major bacteria and functional genes of the ileum, cecum and colon were significantly changed, but not in the jejunum. In NAFLD mice, the variation characteristics of microbiota in the cecum and colon (feces) were similar. However, the variation characteristics of intestinal microbiota in the ileum and large intestine segments (cecum and colon) were quite different. Discussion Therefore, the study results of cecal and colonic (fecal) microbiota cannot completely represent the results of jejunal and ileal microbiota.
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Affiliation(s)
- Guangwen Yan
- College of Animal Science, Xichang University, Xichang, China
| | - Shuaibing Li
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Yuhang Wen
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Yadan Luo
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Jingrong Huang
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Baoting Chen
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Shuya Lv
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Lang Chen
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Lvqin He
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Manli He
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Qian Yang
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Zehui Yu
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Wudian Xiao
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Yong Tang
- Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Weiyao Li
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jianhong Han
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Fangfang Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Shumin Yu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Fang Kong
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Benazir Abbasi
- College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, China
| | - Hongmei Yin
- College of Animal Science, Xichang University, Xichang, China,*Correspondence: Hongmei Yin,
| | - Congwei Gu
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China,College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China,Congwei Gu,
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21
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Windfelder AG, Müller FHH, Mc Larney B, Hentschel M, Böhringer AC, von Bredow CR, Leinberger FH, Kampschulte M, Maier L, von Bredow YM, Flocke V, Merzendorfer H, Krombach GA, Vilcinskas A, Grimm J, Trenczek TE, Flögel U. High-throughput screening of caterpillars as a platform to study host-microbe interactions and enteric immunity. Nat Commun 2022; 13:7216. [PMID: 36433960 PMCID: PMC9700799 DOI: 10.1038/s41467-022-34865-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 11/10/2022] [Indexed: 11/27/2022] Open
Abstract
Mammalian models of human disease are expensive and subject to ethical restrictions. Here, we present an independent platform for high-throughput screening, using larvae of the tobacco hornworm Manduca sexta, combining diagnostic imaging modalities for a comprehensive characterization of aberrant phenotypes. For validation, we use bacterial/chemical-induced gut inflammation to generate a colitis-like phenotype and identify significant alterations in morphology, tissue properties, and intermediary metabolism, which aggravate with disease progression and can be rescued by antimicrobial treatment. In independent experiments, activation of the highly conserved NADPH oxidase DUOX, a key mediator of gut inflammation, leads to similar, dose-dependent alterations, which can be attenuated by pharmacological interventions. Furthermore, the developed platform could differentiate pathogens from mutualistic gastrointestinal bacteria broadening the scope of applications also to microbiomics and host-pathogen interactions. Overall, larvae-based screening can complement mammals in preclinical studies to explore innate immunity and host-pathogen interactions, thus representing a substantial contribution to improve mammalian welfare.
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Affiliation(s)
- Anton G. Windfelder
- grid.8664.c0000 0001 2165 8627Institute of Zoology and Developmental Biology; Cellular Recognition and Defense Processes, Justus Liebig University Giessen, Giessen, Germany ,grid.418010.c0000 0004 0573 9904Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Giessen, Germany ,grid.8664.c0000 0001 2165 8627Laboratory of Experimental Radiology, Justus Liebig University Giessen, Giessen, Germany
| | | | - Benedict Mc Larney
- grid.51462.340000 0001 2171 9952Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY USA ,grid.51462.340000 0001 2171 9952Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Michael Hentschel
- grid.411656.10000 0004 0479 0855Department of Nuclear Medicine, Inselspital Bern, Bern, Switzerland
| | - Anna Christina Böhringer
- grid.5836.80000 0001 2242 8751Department of Chemistry and Biology, School of Science and Technology, University of Siegen, Siegen, Germany
| | - Christoph-Rüdiger von Bredow
- grid.4488.00000 0001 2111 7257Applied Zoology, Department of Biology, Technical University of Dresden, Dresden, Germany
| | - Florian H. Leinberger
- grid.8664.c0000 0001 2165 8627Institute of Zoology and Developmental Biology; Cellular Recognition and Defense Processes, Justus Liebig University Giessen, Giessen, Germany
| | - Marian Kampschulte
- grid.8664.c0000 0001 2165 8627Laboratory of Experimental Radiology, Justus Liebig University Giessen, Giessen, Germany
| | - Lorenz Maier
- grid.411656.10000 0004 0479 0855Department of Nuclear Medicine, Inselspital Bern, Bern, Switzerland
| | - Yvette M. von Bredow
- grid.8664.c0000 0001 2165 8627Institute of Zoology and Developmental Biology; Cellular Recognition and Defense Processes, Justus Liebig University Giessen, Giessen, Germany
| | - Vera Flocke
- grid.411327.20000 0001 2176 9917Experimental Cardiovascular Imaging, Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Hans Merzendorfer
- grid.5836.80000 0001 2242 8751Department of Chemistry and Biology, School of Science and Technology, University of Siegen, Siegen, Germany
| | - Gabriele A. Krombach
- grid.411067.50000 0000 8584 9230Department of Diagnostic and Interventional Radiology, University-Hospital Giessen, Giessen, Germany
| | - Andreas Vilcinskas
- grid.418010.c0000 0004 0573 9904Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Giessen, Germany ,grid.8664.c0000 0001 2165 8627Institute for Insect Biotechnology, Department of Applied Entomology, Justus Liebig University Giessen, Giessen, Germany
| | - Jan Grimm
- grid.51462.340000 0001 2171 9952Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY USA ,grid.51462.340000 0001 2171 9952Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, NY USA ,grid.5386.8000000041936877XPharmacology Department, Weill Cornell Medical College, New York, NY USA ,grid.51462.340000 0001 2171 9952Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY USA ,grid.413734.60000 0000 8499 1112Department of Radiology, Weill Cornell Medical Center, New York, NY USA
| | - Tina E. Trenczek
- grid.8664.c0000 0001 2165 8627Institute of Zoology and Developmental Biology; Cellular Recognition and Defense Processes, Justus Liebig University Giessen, Giessen, Germany
| | - Ulrich Flögel
- grid.411327.20000 0001 2176 9917Experimental Cardiovascular Imaging, Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
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22
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Yip JLK, Balasuriya GK, Spencer SJ, Hill-Yardin EL. Examining enteric nervous system function in rat and mouse: an interspecies comparison of colonic motility. Am J Physiol Gastrointest Liver Physiol 2022; 323:G477-G487. [PMID: 36126271 DOI: 10.1152/ajpgi.00175.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Gastrointestinal motility is crucial to gut health and has been associated with different disorders such as inflammatory bowel diseases and postoperative ileus. Despite rat and mouse being the two animal models most widely used in gastrointestinal research, minimal studies in rats have investigated gastrointestinal motility. Therefore, our study provides a comparison of colonic motility in the mouse and rat to clarify species differences and assess the relative effectiveness of each animal model for colonic motility research. We describe the protocol modifications and optimization undertaken to enable video imaging of colonic motility in the rat. Apart from the broad difference in terms of gastrointestinal diameter and length, we identified differences in the fundamental histology of the proximal colon such that the rat had larger villus height-to-width and villus height-to-crypt depth ratios compared with mouse. Since gut motility is tightly regulated by the enteric nervous system (ENS), we investigated how colonic contractile activity within each rodent species responds to modulation of the ENS inhibitory neuronal network. Here we used Nω-nitro-l-arginine (l-NNA), an inhibitor of nitric oxide synthase (NOS) to assess proximal colon responses to the stimulatory effect of blocking the major inhibitory neurotransmitter, nitric oxide (NO). In rats, the frequency of proximal colonic contractions increased in the presence of l-NNA (vs. control levels) to a greater extent than in mice. This is despite a similar number of NOS-expressing neurons in the myenteric plexus across species. Given this increase in colonic contraction frequency, the rat represents another relevant animal model for investigating how gastrointestinal motility is regulated by the inhibitory neuronal network of the ENS.NEW & NOTEWORTHY Mice and rats are widely used in gastrointestinal research but have fundamental differences that make them important as different models for different questions. We found that mice have a higher villi length-to-width and villi length-to-crypt depth ratio than rat in proximal colon. Using the ex vivo video imaging technique, we observed that rat colon has more prominent response to blockade of major inhibitory neurotransmitter (nitric oxide) in myenteric plexus than mouse colon.
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Affiliation(s)
- Jackson L K Yip
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Gayathri K Balasuriya
- Department of Physiology and Cell Biology, Kobe University School of Medicine, Kobe, Japan
| | - Sarah J Spencer
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia.,ARC Centre of Excellence for Nanoscale Biophotonics, RMIT University, Melbourne, Victoria, Australia
| | - Elisa L Hill-Yardin
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
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23
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Hou L, Cao S, Qiu Y, Xiong Y, Xiao H, Wen X, Yang X, Gao K, Wang L, Jiang Z. Effects of early sub-therapeutic antibiotic administration on body tissue deposition, gut microbiota and metabolite profiles of weaned piglets. J Sci Food Agric 2022; 102:5913-5924. [PMID: 35437780 DOI: 10.1002/jsfa.11942] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 03/24/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND This study aimed to evaluate the effects of sub-therapeutic antibiotic (STA) administration and its subsequent withdrawal on the body tissue deposition, gut microbiota, and metabolite profiles of piglets. The piglets in the experimental group were fed with STA (30 mg kg-1 bacitracin methylene disalicylate, 75 mg kg-1 chlortetracycline, 300 mg kg-1 calcium oxytetracycline) for 14 days and the target bodyweight of the withdrawal period was 25 kg. RESULTS The experiment was divided into two periods: the administration period and the withdrawal period. The results showed that STA did not improve piglets' growth performance during the two periods. Piglets treated with STA had lower body water deposition during the withdrawal period and tended to increase body lipid deposition during the withdrawal period and the whole period in comparison with the piglets in the control group. It was found that STA markedly altered the colonic microbiota and their metabolites in the piglets. Sub-therapeutic antibiotics were initially effective in decreasing the abundance of pathogenic bacteria during the administration period; however, STA could not continue the effect during the withdrawal period, leading to a rebound of pathogenic bacteria such as Alloprevotella and the increased abundance of other pathogenic bacteria like Oscillibacter. Remarkably, STA treatment decreased Blautia abundance. This bacterium plays a potential protective role against obesity. Metabolomic analysis indicated that STA mainly altered amino acid metabolism, lipid metabolism, and carbohydrate metabolism during the two periods. Spearman's correlation analysis showed that the gut microbiota was highly correlated with microbial metabolite changes. CONCLUSION These results suggest that early STA administration may alter body tissue deposition later in life by reshaping the gut microbiota and their metabolite profiles. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Lei Hou
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Shuting Cao
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Yueqin Qiu
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - YunXia Xiong
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Hao Xiao
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xiaolu Wen
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xuefen Yang
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Kaiguo Gao
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Li Wang
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zongyong Jiang
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
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24
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Fujii R, Awaga Y, Nozawa K, Matsushita M, Hama A, Natsume T, Takamatsu H. Regional brain activation during rectal distention and attenuation with alosetron in a nonhuman primate model of irritable bowel syndrome. FASEB Bioadv 2022; 4:694-708. [DOI: 10.1096/fba.2022-00048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 11/11/2022] Open
Affiliation(s)
| | - Yuji Awaga
- Hamamatsu Pharma Research, Inc. Hamamatsu Japan
| | | | | | - Aldric Hama
- Hamamatsu Pharma Research, Inc. Hamamatsu Japan
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25
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Orzechowska-Licari EJ, LaComb JF, Giarrizzo M, Yang VW, Bialkowska AB. Intestinal Epithelial Regeneration in Response to Ionizing Irradiation. J Vis Exp 2022:10.3791/64028. [PMID: 35969101 PMCID: PMC9631267 DOI: 10.3791/64028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023] Open
Abstract
The intestinal epithelium consists of a single layer of cells yet contains multiple types of terminally differentiated cells, which are generated by the active proliferation of intestinal stem cells located at the bottom of intestinal crypts. However, during events of acute intestinal injury, these active intestinal stem cells undergo cell death. Gamma irradiation is a widely used colorectal cancer treatment, which, while therapeutically efficacious, has the side effect of depleting the active stem cell pool. Indeed, patients frequently experience gastrointestinal radiation syndrome while undergoing radiotherapy, in part due to active stem cell depletion. The loss of active intestinal stem cells in intestinal crypts activates a pool of typically quiescent reserve intestinal stem cells and induces dedifferentiation of secretory and enterocyte precursor cells. If not for these cells, the intestinal epithelium would lack the ability to recover from radiotherapy and other such major tissue insults. New advances in lineage-tracing technologies allow tracking of the activation, differentiation, and migration of cells during regeneration and have been successfully employed for studying this in the gut. This study aims to depict a method for the analysis of cells within the mouse intestinal epithelium following radiation injury.
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Affiliation(s)
| | - Joseph F LaComb
- Department of Medicine, Renaissance School of Medicine at Stony Brook University
| | - Michael Giarrizzo
- Department of Medicine, Renaissance School of Medicine at Stony Brook University
| | - Vincent W Yang
- Department of Medicine, Renaissance School of Medicine at Stony Brook University; Department of Physiology and Biophysics, Renaissance School of Medicine at Stony Brook University
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26
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Charoensappakit A, Sae-Khow K, Leelahavanichkul A. Gut Barrier Damage and Gut Translocation of Pathogen Molecules in Lupus, an Impact of Innate Immunity (Macrophages and Neutrophils) in Autoimmune Disease. Int J Mol Sci 2022; 23:ijms23158223. [PMID: 35897790 PMCID: PMC9367802 DOI: 10.3390/ijms23158223] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 02/08/2023] Open
Abstract
The gut barrier is a single cell layer that separates gut micro-organisms from the host, and gut permeability defects result in the translocation of microbial molecules from the gut into the blood. Despite the silent clinical manifestation, gut translocation of microbial molecules can induce systemic inflammation that might be an endogenous exacerbating factor of systemic lupus erythematosus. In contrast, circulatory immune-complex deposition and the effect of medications on the gut, an organ with an extremely large surface area, of patients with active lupus might cause gut translocation of microbial molecules, which worsens lupus severity. Likewise, the imbalance of gut microbiota may initiate lupus and/or interfere with gut integrity which results in microbial translocation and lupus exacerbation. Moreover, immune hyper-responsiveness of innate immune cells (macrophages and neutrophils) is demonstrated in a lupus model from the loss of inhibitory Fc gamma receptor IIb (FcgRIIb), which induces prominent responses through the cross-link between activating-FcgRs and innate immune receptors. The immune hyper-responsiveness can cause cell death, especially apoptosis and neutrophil extracellular traps (NETosis), which possibly exacerbates lupus, partly through the enhanced exposure of the self-antigens. Leaky gut monitoring and treatments (such as probiotics) might be beneficial in lupus. Here, we discuss the current information on leaky gut in lupus.
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Affiliation(s)
- Awirut Charoensappakit
- Center of Excellence in Translational Research in Inflammation and Immunology (CETRII), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kritsanawan Sae-Khow
- Center of Excellence in Translational Research in Inflammation and Immunology (CETRII), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Asada Leelahavanichkul
- Center of Excellence in Translational Research in Inflammation and Immunology (CETRII), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Nephrology Unit, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
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27
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Lissens M, Joos M, Lories B, Steenackers HP. Evolution-proof inhibitors of public good cooperation: a screening strategy inspired by social evolution theory. FEMS Microbiol Rev 2022; 46:6604382. [PMID: 35675280 PMCID: PMC9616471 DOI: 10.1093/femsre/fuac019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/22/2022] [Indexed: 01/07/2023] Open
Abstract
Interference with public good cooperation provides a promising novel antimicrobial strategy since social evolution theory predicts that resistant mutants will be counter-selected if they share the public benefits of their resistance with sensitive cells in the population. Although this hypothesis is supported by a limited number of pioneering studies, an extensive body of more fundamental work on social evolution describes a multitude of mechanisms and conditions that can stabilize public behaviour, thus potentially allowing resistant mutants to thrive. In this paper we theorize on how these different mechanisms can influence the evolution of resistance against public good inhibitors. Based hereon, we propose an innovative 5-step screening strategy to identify novel evolution-proof public good inhibitors, which involves a systematic evaluation of the exploitability of public goods under the most relevant experimental conditions, as well as a careful assessment of the most optimal way to interfere with their action. Overall, this opinion paper is aimed to contribute to long-term solutions to fight bacterial infections.
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Affiliation(s)
- Maries Lissens
- Centre of Microbial and Plant Genetics (CMPG), Department of Microbial and Molecular Systems, KU Leuven, Leuven, B-3001, Belgium
| | - Mathieu Joos
- Centre of Microbial and Plant Genetics (CMPG), Department of Microbial and Molecular Systems, KU Leuven, Leuven, B-3001, Belgium
| | - Bram Lories
- Centre of Microbial and Plant Genetics (CMPG), Department of Microbial and Molecular Systems, KU Leuven, Leuven, B-3001, Belgium
| | - Hans P Steenackers
- Corresponding author: Centre of Microbial and Plant Genetics (CMPG), Kasteelpark Arenberg 20 – Box 2460, B-3001 Leuven, Belgium. E-mail:
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28
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Bets VD, Achasova KM, Borisova MA, Kozhevnikova EN, Litvinova EA. Role of Mucin 2 Glycoprotein and L-Fucose in Interaction of Immunity and Microbiome within the Experimental Model of Inflammatory Bowel Disease. Biochemistry (Mosc) 2022; 87:301-318. [PMID: 35527372 DOI: 10.1134/s0006297922040010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Many factors underlie the development of inflammatory bowel disease (IBD) in humans. In particular, imbalance of microbiota and thinning of the mucosal layer in the large intestine play a huge role. Pathogenic microorganisms also exacerbate the course of diseases. In this research the role of mucin 2 deficiency in the formation of intestinal microflora in the experimental model using the Muc2 gene knockout mice in the presence of Helicobacter spp. was investigated. Also, restorative and anti-inflammatory effect of the dietary L-fucose in the Muc2-/- mice on microflora and immunity was evaluated. For this purpose, bacterial diversity in feces was studied in the animals before and after antibiotic therapy and role of the dietary L-fucose in their recovery was assessed. To determine the effect of bacterial imbalance and fucose on the immune system, mRNA levels of the genes encoding pro-inflammatory cytokines (Tnf, Il1a, Il1b, Il6) and transcription factors of T cells (Foxp3 - Treg, Rorc - Th17, Tbx21 - Th1) were determined in the colon tissue of the Muc2-/- mice. Significant elimination of bacteria due to antibiotic therapy caused decrease of the fucose levels in the intestine and facilitated reduction of the regulatory T cell transcription factor (Foxp3). When the dietary L-fucose was added to antibiotics, the level of bacterial DNA of Bacteroides spp. in the feces of the Muc2-/- mice was partially restored. T regulatory cells are involved in the regulation of inflammation in the Muc2-/- mice. Antibiotics reduced the number of regulatory T cell but did not decrease the inflammatory response to infection. Fucose, as a component of mucin 2, helped to maintain the level of Bacteroides spp. during antibiotic therapy of the Muc2-/- mice and restored biochemical parameters, but did not affect the inflammatory response.
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Affiliation(s)
- Victoria D Bets
- Novosibirsk State Agrarian University, Novosibirsk, 630039, Russia
| | - Kseniya M Achasova
- Research Institute of Neurosciences and Medicine, Novosibirsk, 630117, Russia.,Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Mariya A Borisova
- Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Elena N Kozhevnikova
- Novosibirsk State Agrarian University, Novosibirsk, 630039, Russia.,Research Institute of Neurosciences and Medicine, Novosibirsk, 630117, Russia.,Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
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Boeckman JX, Sprayberry S, Korn AM, Suchodolski JS, Paulk C, Genovese K, Rech RR, Giaretta PR, Blick AK, Callaway T, Gill JJ. Effect of chronic and acute enterotoxigenic E. coli challenge on growth performance, intestinal inflammation, microbiome, and metabolome of weaned piglets. Sci Rep 2022; 12:5024. [PMID: 35323827 PMCID: PMC8943154 DOI: 10.1038/s41598-022-08446-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 02/28/2022] [Indexed: 12/17/2022] Open
Abstract
Post-weaning enteropathies in swine caused by pathogenic E. coli, such as post-weaning diarrhea (PWD) or edema disease (ED), remain a significant problem for the swine industry. Reduction in the use of antibiotics over concerns of antibiotic resistance and public health concerns, necessitate the evaluation of effective antibiotic alternatives to prevent significant loss of livestock and/or reductions in swine growth performance. For this purpose, an appropriate piglet model of pathogenic E. coli enteropathy is required. In this study, we attempted to induce clinical signs of post-weaning disease in a piglet model using a one-time acute or lower daily chronic dose of a pathogenic E. coli strain containing genes for both heat stable and labile toxins, as well as Shiga toxin. The induced disease state was monitored by determining fecal shedding and colonization of the challenge strain, animal growth performance, cytokine levels, fecal calprotectin, histology, fecal metabolomics, and fecal microbiome shifts. The most informative analyses were colonization and shedding of the pathogen, serum cytokines, metabolomics, and targeted metagenomics to determine dysbiosis. Histopathological changes of the gastrointestinal (GI) tract and tight junction leakage as measured by fecal calprotectin concentrations were not observed. Chronic dosing was similar to the acute regimen suggesting that a high dose of pathogen, as used in many studies, may not be necessary. The piglet disease model presented here can be used to evaluate alternative PWD treatment options.
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Affiliation(s)
- Justin X Boeckman
- Department of Animal Science, Texas A&M University, College Station, TX, USA.,Center for Phage Technology, Texas A&M University, College Station, TX, USA
| | - Sarah Sprayberry
- Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Abby M Korn
- Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Jan S Suchodolski
- Department of Small Animal Clinical Sciences, Gastrointestinal Laboratory, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Chad Paulk
- Department of Animal Science, Texas A&M University, College Station, TX, USA.,Department of Grain Science and Industry, College of Agriculture, Kansas State University, Manhattan, KS, USA
| | - Kenneth Genovese
- USDA-ARS, Food and Feed Safety Research Unit, College Station, TX, USA
| | - Raquel R Rech
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Paula R Giaretta
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA.,School of Veterinary Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Anna K Blick
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Todd Callaway
- USDA-ARS, Food and Feed Safety Research Unit, College Station, TX, USA.,Department of Animal and Dairy Science, University of Georgia, Athens, GA, USA
| | - Jason J Gill
- Department of Animal Science, Texas A&M University, College Station, TX, USA. .,Center for Phage Technology, Texas A&M University, College Station, TX, USA.
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Katkar GD, Sayed IM, Anandachar MS, Castillo V, Vidales E, Toobian D, Usmani F, Sawires JR, Leriche G, Yang J, Sandborn WJ, Das S, Sahoo D, Ghosh P. Artificial intelligence-rationalized balanced PPARα/γ dual agonism resets dysregulated macrophage processes in inflammatory bowel disease. Commun Biol 2022; 5:231. [PMID: 35288651 PMCID: PMC8921270 DOI: 10.1038/s42003-022-03168-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 02/07/2022] [Indexed: 12/12/2022] Open
Abstract
A computational platform, Boolean network explorer (BoNE), has recently been developed to infuse AI-enhanced precision into drug discovery; it enables invariant Boolean Implication Networks of disease maps for prioritizing high-value targets. Here we used BoNE to query an Inflammatory Bowel Disease (IBD)-map and prioritize a therapeutic strategy that involves dual agonism of two nuclear receptors, PPARα/γ. Balanced agonism of PPARα/γ was predicted to modulate macrophage processes, ameliorate colitis, 'reset' the gene expression network from disease to health. Predictions were validated using a balanced and potent PPARα/γ-dual-agonist (PAR5359) in Citrobacter rodentium- and DSS-induced murine colitis models. Using inhibitors and agonists, we show that balanced-dual agonism promotes bacterial clearance efficiently than individual agonists, both in vivo and in vitro. PPARα is required and sufficient to induce the pro-inflammatory cytokines and cellular ROS, which are essential for bacterial clearance and immunity, whereas PPARγ-agonism blunts these responses, delays microbial clearance; balanced dual agonism achieved controlled inflammation while protecting the gut barrier and 'reversal' of the transcriptomic network. Furthermore, dual agonism reversed the defective bacterial clearance observed in PBMCs derived from IBD patients. These findings not only deliver a macrophage modulator for use as barrier-protective therapy in IBD, but also highlight the potential of BoNE to rationalize combination therapy.
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Affiliation(s)
- Gajanan D Katkar
- Department of Cellular and Molecular Medicine, University of California San Diego, San Diego, USA
| | - Ibrahim M Sayed
- Department of Pathology, University of California San Diego, San Diego, USA.,Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | | | - Vanessa Castillo
- Department of Cellular and Molecular Medicine, University of California San Diego, San Diego, USA
| | - Eleadah Vidales
- Department of Cellular and Molecular Medicine, University of California San Diego, San Diego, USA
| | - Daniel Toobian
- Department of Cellular and Molecular Medicine, University of California San Diego, San Diego, USA
| | - Fatima Usmani
- Department of Pathology, University of California San Diego, San Diego, USA
| | - Joseph R Sawires
- Department of Chemistry and Biochemistry, University of California San Diego, San Diego, USA
| | - Geoffray Leriche
- Department of Chemistry and Biochemistry, University of California San Diego, San Diego, USA
| | - Jerry Yang
- Department of Chemistry and Biochemistry, University of California San Diego, San Diego, USA
| | - William J Sandborn
- Department of Medicine, University of California San Diego, San Diego, USA.
| | - Soumita Das
- Department of Pathology, University of California San Diego, San Diego, USA.
| | - Debashis Sahoo
- Department of Computer Science and Engineering, Jacob's School of Engineering, University of California San Diego, San Diego, USA. .,Department of Pediatrics, University of California San Diego, San Diego, USA. .,Rebecca and John Moore Comprehensive Cancer Center, University of California San Diego, San Diego, USA.
| | - Pradipta Ghosh
- Department of Cellular and Molecular Medicine, University of California San Diego, San Diego, USA. .,Department of Medicine, University of California San Diego, San Diego, USA. .,Rebecca and John Moore Comprehensive Cancer Center, University of California San Diego, San Diego, USA. .,Veterans Affairs Medical Center, La Jolla, San Diego, USA.
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Tusé D, Reeves M, Royal J, Hamorsky KT, Ng H, Arolfo M, Green C, Trigunaite A, Parman T, Lee G, Matoba N. Pharmacokinetics and Safety Studies in Rodent Models Support Development of EPICERTIN as a Novel Topical Wound-Healing Biologic for Ulcerative Colitis. J Pharmacol Exp Ther 2022; 380:162-170. [PMID: 35058349 PMCID: PMC11046972 DOI: 10.1124/jpet.121.000904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 01/02/2022] [Indexed: 04/28/2024] Open
Abstract
The novel wound-healing biologic EPICERTIN, a recombinant analog of cholera toxin B subunit, is in early development for the management of ulcerative colitis. This study established for the first time the pharmacokinetics (PK), bioavailability (BA), and acute safety of EPICERTIN in healthy and dextran sodium sulfate-induced colitic mice and healthy rats. For PK and BA assessments, single administrations of various concentrations of EPICERTIN were given intravenously or intrarectally to healthy and colitic C57BL/6 mice and to healthy Sprague-Dawley rats. After intravenous administration to healthy animals, the drug's plasma half-life (t 1/2) for males and females was 0.26 and 0.3 hours in mice and 19.4 and 14.5 hours in rats, respectively. After intrarectal administration, drug was detected at very low levels in only four samples of mouse plasma, with no correlation to colon epithelial integrity. No drug was detected in rat plasma. A single intrarectal dose of 0.1 µM (0.6 µg/mouse) EPICERTIN significantly facilitated the healing of damaged colonic epithelium as determined by disease activity index and histopathological scoring, whereas 10-fold higher or lower concentrations showed no effect. For acute toxicity evaluation, healthy rats were given a single intrarectal administration of various doses of EPICERTIN with sacrifice on Day 8, recording body weight, morbidity, mortality, clinical pathology, and gross necropsy observations. There were no drug-related effects of toxicological significance. The no observed adverse effect level (intrarectal) in rats was determined to be 5 µM (307 µg/animal, or 5.2 µg drug/cm2 of colorectal surface area), which is 14 times the anticipated intrarectally delivered clinical dose. SIGNIFICANCE STATEMENT: EPICERTIN is a candidate wound-healing biologic for the management of ulcerative colitis. This study determined for the first time the intravenous and intrarectal pharmacokinetics and bioavailability of the drug in healthy and colitic mice and healthy rats, and its acute safety in a dose-escalation study in rats. An initial therapeutic dose in colitic mice was also established. EPICERTIN delivered intrarectally was minimally absorbed systemically, was well tolerated, and induced epithelial wound healing topically at a low dose.
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Affiliation(s)
- Daniel Tusé
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Micaela Reeves
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Joshua Royal
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Krystal T Hamorsky
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Hanna Ng
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Maria Arolfo
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Carol Green
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Abhishek Trigunaite
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Toufan Parman
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Goo Lee
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Nobuyuki Matoba
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
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Tong G, Qian H, Li D, Li J, Chen J, Li X. Establishment and evaluation of a specific antibiotic-induced inflammatory bowel disease model in rats. PLoS One 2022; 17:e0264194. [PMID: 35192646 PMCID: PMC8863245 DOI: 10.1371/journal.pone.0264194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 02/06/2022] [Indexed: 12/03/2022] Open
Abstract
Physical and chemical methods for generating rat models of enteritis have been established; however, antibiotic induction has rarely been used for this purpose. The present study aimed to establish and evaluate a rat model of inflammatory bowel disease (IBD) using antibiotics. A total of 84 Sprague-Dawley (SD) rats were divided into the following groups, according to the dosage and method of administration of the antibiotics: A, control; B, low-dose clindamycin; C, medium-dose clindamycin; D, high-dose clindamycin; E, low-dose clindamycin, ampicillin and streptomycin; F, medium-dose clindamycin, ampicillin and streptomycin; and G, high-dose clindamycin, ampicillin and streptomycin. Antibiotic administration was stopped on day 7; the modeling period covered days 1-7, and the recovery period covered days 8-15. Half of the animals were dissected on day 11, with the remaining animals dissected on day 15. Food and water intake, body weight and fecal weight were recorded. Intestinal flora was analyzed via microbial culture and quantitative PCR. The content of TNF-α, IL1-β, IL-6 and C-reactive protein (CRP) was assessed in abdominal aorta blood. Colonic and rectal tissues were examined pathologically via hematoxylin-eosin staining to assess leukocyte infiltration and intestinal mucosal changes as indicators of inflammation. Rat weight, food intake, water intake and 2-h fecal weight were significantly different across the experimental groups (P = 0.040, P = 0.016, P<0.001 and P = 0.009, respectively). Microbial cultures revealed no significant differences between group A and B,C (P = 0.546,0.872) but significant differences betwenn group A and the other experimental groups (all P<0.001). Furthermore, significant differences in the levels of Bacteroides, Faecalibacterium prausnitzii and Dialister invisus on day 4 between groups A, C and F (P = 0.033, P = 0.025 and P = 0.034, respectively). Significant differences were detected in the levels of TNF-α, IL1-β, IL-6 and CRP between the groups (all P<0.001). The colonic and rectal pathological inflammation scores of the experimental groups were significantly different compared with group A (B vs. A, P = 0.002; others, all P<0.001). These findings indicated that an antibiotic-induced IBD model was successfully established in SD rats; this animal model may serve as a useful model for clinical IBD research.
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Affiliation(s)
- Guojun Tong
- Departments of General Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, China
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Hai Qian
- Departments of General Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Dongli Li
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Jing Li
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Jing Chen
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Xiongfeng Li
- Orthopedic Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, China
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Silva-Reis R, Castro-Ribeiro C, Gonçalves M, Ferreira T, Pires MJ, Iglesias-Aguirre CE, Cortés-Martín A, Selma MV, Espín JC, Nascimento-Gonçalves E, Moreira-Pais A, Neuparth MJ, Peixoto F, Rosa E, Gama A, Ferreira R, Oliveira PA, Faustino-Rocha AI. An Integrative Approach to Characterize the Early Phases of Dimethylhydrazine-Induced Colorectal Carcinogenesis in the Rat. Biomedicines 2022; 10:biomedicines10020409. [PMID: 35203618 PMCID: PMC8962270 DOI: 10.3390/biomedicines10020409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/26/2022] [Accepted: 02/06/2022] [Indexed: 02/01/2023] Open
Abstract
This study aimed to characterize an animal model of colorectal cancer (CRC) in the early stages of disease development. Twenty-nine male Wistar rats were divided into two control groups (CTRL1 and CTRL2), receiving EDTA–saline injections and two induced groups (CRC1 and CRC2), receiving 1,2-dimethylhydrazine (DMH) injections for seven consecutive weeks. CRC1 and CTRL1 were euthanized at the 11th week, while CRC2 and CTRL2 were euthanized at the 17th week. DMH treatment decreased microhematocrit values and IL-6, ghrelin, and myostatin serum levels. Histopathological analysis of intestinal sections showed that DMH-treated rats were characterized by moderate to severe epithelial dysplasia. An adenoma was observed in one animal (CRC2 group), and the presence of inflammatory infiltrate at the intestinal level was primarily observed in DMH-treated animals. DMH also induced Ki-67 immunoexpression. The gut microbiota analysis showed a higher abundance of Firmicutes, Clostridia, Clostridiales, Peptostreptococcaceae, Blautia, Romboutsia, and Clostridium sensu stricto in CRC than CTRL rats, whereas Prevotellaceae, Prevotella, Akkermansia, and Lactobacillus levels were more prevalent in CTRL animals. Our results suggest that this model could be helpful to investigate chemoprevention in the early stages of CRC.
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Affiliation(s)
- Rita Silva-Reis
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
| | - Catarina Castro-Ribeiro
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
| | - Mariana Gonçalves
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
| | - Tiago Ferreira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
| | - Maria João Pires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
| | - Carlos E. Iglesias-Aguirre
- Laboratory Food & Health, CEBAS-CSIC, Campus de Espinardo, 30100 Murcia, Spain; (C.E.I.-A.); (A.C.-M.); (M.V.S.); (J.C.E.)
| | - Adrián Cortés-Martín
- Laboratory Food & Health, CEBAS-CSIC, Campus de Espinardo, 30100 Murcia, Spain; (C.E.I.-A.); (A.C.-M.); (M.V.S.); (J.C.E.)
| | - María V. Selma
- Laboratory Food & Health, CEBAS-CSIC, Campus de Espinardo, 30100 Murcia, Spain; (C.E.I.-A.); (A.C.-M.); (M.V.S.); (J.C.E.)
| | - Juan Carlos Espín
- Laboratory Food & Health, CEBAS-CSIC, Campus de Espinardo, 30100 Murcia, Spain; (C.E.I.-A.); (A.C.-M.); (M.V.S.); (J.C.E.)
| | - Elisabete Nascimento-Gonçalves
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
| | - Alexandra Moreira-Pais
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.M.-P.); (R.F.)
- Research Center in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal;
| | - Maria J. Neuparth
- Research Center in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal;
| | - Francisco Peixoto
- Chemistry Research Center, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
| | - Eduardo Rosa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
| | - Adelina Gama
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Associate Laboratory for Animal and Veterinary Science—AL4AnimalS, Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.M.-P.); (R.F.)
| | - Paula A. Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
| | - Ana I. Faustino-Rocha
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (R.S.-R.); (C.C.-R.); (M.G.); (T.F.); (M.J.P.); (E.N.-G.); (E.R.); (P.A.O.)
- Department of Zootechnics, School of Sciences and Technology, University of Évora, 7004-516 Évora, Portugal
- Comprehensive Health Research Center, 7004-516 Évora, Portugal
- Correspondence:
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Anjum M, Laitila A, Ouwehand AC, Forssten SD. Current Perspectives on Gastrointestinal Models to Assess Probiotic-Pathogen Interactions. Front Microbiol 2022; 13:831455. [PMID: 35173703 PMCID: PMC8841803 DOI: 10.3389/fmicb.2022.831455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/06/2022] [Indexed: 12/12/2022] Open
Abstract
There are different models available that mimic the human intestinal epithelium and are thus available for studying probiotic and pathogen interactions in the gastrointestinal tract. Although, in vivo models make it possible to study the overall effects of a probiotic on a living subject, they cannot always be conducted and there is a general commitment to reduce the use of animal models. Hence, in vitro methods provide a more rapid tool for studying the interaction between probiotics and pathogens; as well as being ethically superior, faster, and less expensive. The in vitro models are represented by less complex traditional models, standard 2D models compromised of culture plates as well as Transwell inserts, and newer 3D models like organoids, enteroids, as well as organ-on-a-chip. The optimal model selected depends on the research question. Properly designed in vitro and/or in vivo studies are needed to examine the mechanism(s) of action of probiotics on pathogens to obtain physiologically relevant results.
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Affiliation(s)
| | | | | | - Sofia D. Forssten
- International Flavors and Fragrances, Health and Biosciences, Danisco Sweeteners Oy, Kantvik, Finland
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Huo J, Wu Z, Sun W, Wang Z, Wu J, Huang M, Wang B, Sun B. Protective Effects of Natural Polysaccharides on Intestinal Barrier Injury: A Review. J Agric Food Chem 2022; 70:711-735. [PMID: 35078319 DOI: 10.1021/acs.jafc.1c05966] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Owing to their minimal side effects and effective protection from oxidative stress, inflammation, and malignant growth, natural polysaccharides (NPs) are a potential adjuvant therapy for several diseases caused by intestinal barrier injury (IBI). More studies are accumulating on the protective effects of NPs with respect to IBI, but the underlying mechanisms remain unclear. Thus, this review aims to represent current studies that investigate the protective effects of NPs on IBI by directly maintaining intestinal epithelial barrier integrity (inhibiting oxidative stress, regulating inflammatory cytokine expression, and increasing tight junction protein expression) and indirectly regulating intestinal immunity and microbiota. Furthermore, the mechanisms underlying IBI development are briefly introduced, and the structure-activity relationships of polysaccharides with intestinal barrier protection effects are discussed. Potential developments and challenges associated with NPs exhibiting protective effects against IBI have also been highlighted to guide the application of NPs in the treatment of intestinal diseases caused by IBI.
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Affiliation(s)
- Jiaying Huo
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Ziyan Wu
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Weizheng Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Zhenhua Wang
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai, Shandong 264005, People's Republic of China
| | - Jihong Wu
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Mingquan Huang
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Bowen Wang
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Baoguo Sun
- Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, People's Republic of China
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, People's Republic of China
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Pascoal LB, Palma BB, Chaim FHM, de Castro MM, Damázio TA, Franceschini APMDF, Milanski M, Velloso LA, Leal RF. New translational and experimental insights into the role of pro-resolving lipid mediators in inflammatory bowel disease. World J Exp Med 2022; 12:1-15. [PMID: 35096550 PMCID: PMC8771592 DOI: 10.5493/wjem.v12.i1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 10/21/2021] [Accepted: 01/08/2022] [Indexed: 02/06/2023] Open
Abstract
The resolution of inflammation is an active process, guided by specialized pro-resolution lipid mediators (SPMs). These mediators originate from polyunsaturated fatty acids, such as omega-3. Sufficient evidence suggests that the beneficial effects attributed to omega-3 are, at least in part, the result of the immunomodulatory action of the SPMs, which act systemically by overcoming inflammation and repairing tissue damage, without suppressing the immune response. Recent studies suggest that an imbalance in the synthesis and/or activity of these compounds may be associated with the pathogenesis of several inflammatory conditions, such as inflammatory bowel disease (IBD). Thus, this review highlights the advances made in recent years with regard to the endo-genous synthesis and the biological role of lipoxins, resolvins, protectins, and maresins, as well as their precursors, in the regulation of inflammation; and provides an update on the participation of these mediators in the development and evolution of IBD and the therapeutic approaches that these immunomodulating substances are involved in this context.
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Affiliation(s)
- Lívia Bitencourt Pascoal
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
| | - Bruna Biazon Palma
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
| | - Fabio Henrique Mendonça Chaim
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
| | - Marina Moreira de Castro
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
| | - Tiago Andrade Damázio
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
| | - Ana Paula Menezes de Freitas Franceschini
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
| | - Marciane Milanski
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
| | - Lício Augusto Velloso
- Laboratory of Cell Signaling, School of Medical Sciences, University of Campinas, Campinas 13083-864, São Paulo, Brazil
| | - Raquel Franco Leal
- Inflammatory Bowel Disease Research Laboratory, Colorectal Surgery Unit, Department of Surgery, School of Medical Sciences, University of Campinas, Campinas 13083-878, São Paulo, Brazil
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Huang S, Hu S, Liu S, Tang B, Liu Y, Tang L, Lei Y, Zhong L, Yang S, He S. Lithium carbonate alleviates colon inflammation through modulating gut microbiota and Treg cells in a GPR43-dependent manner. Pharmacol Res 2022; 175:105992. [PMID: 34801681 DOI: 10.1016/j.phrs.2021.105992] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Recent evidence suggests that neuropsychiatric stabilizers have a place in resolving gastrointestinal disorders. Lithium carbonate (LC) is one of the most commonly used drugs for bipolar disorder clinically. Here, we estimate the therapeutic function of LC against colitis and investigate the mechanism of intestinal flora and metabolism modulation. METHODS A colitis model was constructed by continuously administering 2.5% dextran sodium sulfate (DSS) solution daily for 7 days. Analysis of gut microbiota was carried out by 16S rRNA gene high-throughput sequencing. Spectrum antibiotic cocktail (ABX) and faecal microbiota transplantation (FMT) were employed to evaluate the protective effect of intestinal flora. Colonic Treg cells and related immune responses were detected by flow cytometry. RESULTS LC treatment significantly alleviated colon inflammation by regulating gut microbial diversity and altering flora composition. Notably, LC treatment upregulated short-chain fatty acid (SCFA)-producing bacteria, especially Akkermansia muciniphila (A. muciniphila), and transformed metabolite SCFA profiles. LC activated anti-inflammatory Treg cell responses in colonic lamina propria (LP) in a G-protein coupled receptor 43 (GPR43)-dependent mechanism. ABX, FMT and single bacteria gavage experiments were conducted to confirm the above mechanism. CONCLUSIONS As an intestinal microbiome and metabolite modulator, LC alleviates colon inflammation in a GPR43-dependent manner through activating Treg cell responses. Therefore, the therapeutic strategy of the microbiome-metabolite-immune axis, as observed in the A. muciniphila-SCFA-Treg cell axis in our study, might provide a new direction for the treatment of IBD.
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Affiliation(s)
- Shengjie Huang
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Shiping Hu
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Shuang Liu
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Bo Tang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Yaojiang Liu
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Li Tang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Yuanyuan Lei
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Li Zhong
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Shiming Yang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China.
| | - Song He
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China.
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Zou M, Zeng QS, Nie J, Yang JH, Luo ZY, Gan HT. The Role of E3 Ubiquitin Ligases and Deubiquitinases in Inflammatory Bowel Disease: Friend or Foe? Front Immunol 2021; 12:769167. [PMID: 34956195 PMCID: PMC8692584 DOI: 10.3389/fimmu.2021.769167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/17/2021] [Indexed: 02/05/2023] Open
Abstract
Inflammatory bowel disease (IBD), which include Crohn’s disease (CD) and ulcerative colitis (UC), exhibits a complex multifactorial pathogenesis involving genetic susceptibility, imbalance of gut microbiota, mucosal immune disorder and environmental factors. Recent studies reported associations between ubiquitination and deubiquitination and the occurrence and development of inflammatory bowel disease. Ubiquitination modification, one of the most important types of post-translational modifications, is a multi-step enzymatic process involved in the regulation of various physiological processes of cells, including cell cycle progression, cell differentiation, apoptosis, and innate and adaptive immune responses. Alterations in ubiquitination and deubiquitination can lead to various diseases, including IBD. Here, we review the role of E3 ubiquitin ligases and deubiquitinases (DUBs) and their mediated ubiquitination and deubiquitination modifications in the pathogenesis of IBD. We highlight the importance of this type of posttranslational modification in the development of inflammation, and provide guidance for the future development of targeted therapeutics in IBD.
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Affiliation(s)
- Min Zou
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Qi-Shan Zeng
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Jiao Nie
- Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Jia-Hui Yang
- Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Zhen-Yi Luo
- Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Hua-Tian Gan
- Department of Gastroenterology and the Center of Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu, China.,Lab of Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Department of Geriatrics and National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
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Ding S, Jiang H, Fang J, Liu G. Regulatory Effect of Resveratrol on Inflammation Induced by Lipopolysaccharides via Reprograming Intestinal Microbes and Ameliorating Serum Metabolism Profiles. Front Immunol 2021; 12:777159. [PMID: 34868045 PMCID: PMC8634337 DOI: 10.3389/fimmu.2021.777159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/14/2021] [Indexed: 12/17/2022] Open
Abstract
The purpose of this study was to explore the regulatory effect of resveratrol (RES) on lipopolysaccharide (LPS)-induced inflammation and its influence on intestinal microorganisms and serum atlas in murine models during the development of inflammation to explore a novel method for the regulation of inflammation. Mice were randomly assigned to three groups: control (CON), LPS, and RES–LPS. The results showed that RES mitigated the inflammatory damage to the intes-tines and liver induced by LPS. Compared with the LPS group, RES treatment decreased the levels of TNF-α, IL-6, IFN-γ, myeloperoxidase, and alanine aminotransferase in the liver. Serum metabolic profile monitoring showed that, compared with the CON group, LPS decreased the levels of five metabolites, including cycloartomunin and glycerol triundecanoate, and increased the levels of eight metabolites, including N-linoleoyl taurine and PE(O-16:0/20:5(5Z), 8Z, 11Z, 14Z, 17Z). Conversely, RES treatment increased the levels of eight metabolites, including pantothenic acid, homovanillic acid, and S-(formylmethyl)glutathione, and reduced seven metabolites, including lysoPE(20:4(8Z,11Z,14Z,17Z)/0:0) and 13-cis-retinoic acid, etc., in comparison with the LPS group. Moreover, RES treatment alleviated the negative effects of LPS on intestinal microbes by reducing, for instance, the relative abundance of Bacteroidetes and Alistipes, and increasing the relative abundance of Lactobacillus. These results suggest that RES has great potential for preventing in-flammation.
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Affiliation(s)
- Sujuan Ding
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, China
| | - Hongmei Jiang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, China
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, China
| | - Gang Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, China
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Stiegeler S, Mercurio K, Iancu MA, Corr SC. The Impact of MicroRNAs during Inflammatory Bowel Disease: Effects on the Mucus Layer and Intercellular Junctions for Gut Permeability. Cells 2021; 10:3358. [PMID: 34943865 DOI: 10.3390/cells10123358] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022] Open
Abstract
Research on inflammatory bowel disease (IBD) has produced mounting evidence for the modulation of microRNAs (miRNAs) during pathogenesis. MiRNAs are small, non-coding RNAs that interfere with the translation of mRNAs. Their high stability in free circulation at various regions of the body allows researchers to utilise miRNAs as biomarkers and as a focus for potential treatments of IBD. Yet, their distinct regulatory roles at the gut epithelial barrier remain elusive due to the fact that there are several external and cellular factors contributing to gut permeability. This review focuses on how miRNAs may compromise two components of the gut epithelium that together form the initial physical barrier: the mucus layer and the intercellular epithelial junctions. Here, we summarise the impact of miRNAs on goblet cell secretion and mucin structure, along with the proper function of various junctional proteins involved in paracellular transport, cell adhesion and communication. Knowledge of how this elaborate network of cells at the gut epithelial barrier becomes compromised as a result of dysregulated miRNA expression, thereby contributing to the development of IBD, will support the generation of miRNA-associated biomarker panels and therapeutic strategies that detect and ameliorate gut permeability.
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Shahdadi Sardou H, Akhgari A, Mohammadpour AH, Beheshti Namdar A, Kamali H, Jafarian AH, Afrasiabi Garekani H, Sadeghi F. Optimization study of combined enteric and time-dependent polymethacrylates as a coating for colon targeted delivery of 5-ASA pellets in rats with ulcerative colitis. Eur J Pharm Sci 2021; 168:106072. [PMID: 34774715 DOI: 10.1016/j.ejps.2021.106072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/07/2021] [Accepted: 11/08/2021] [Indexed: 01/15/2023]
Abstract
Formulation design for colon-specific delivery of 5-aminosalicylic acid (5-ASA) could bring some therapeutic benefits in the treatment of ulcerative colitis (UC). In the current study, a 32 full factorial design was used to predict optimum coating composed of two enteric (poly methacrylic acid, methyl methacrylates 1:2 and 1:1) and time-dependent (poly ethyl acrylate, methyl methacrylate, trimethylammonio ethyl methacrylate chloride 1:2:0.1) polymethacrylates for colon-specific delivery of 5-ASA pellets. A unique coating composition and coating level predicted by the model was applied onto either inulin-free 5-ASA pellets or inulin-bearing 5-ASA pellets and the coated pellets were examined by dissolution test in-vitro. The coated pellets were also tested in a rat model of UC and compared with the a commercially available colonic delivery system of 5-ASA. The ratio of the two enteric polymethacrylates and time-dependet polymethacrylate of 16:64:20 w/w at a coating level of 15% was discovered as the optimum coating for delivery of 5-ASA pellets to the colon. In general, the coated pellets offered a better therapeutic outcome compared to commercially available colonic delivery system of 5-ASA and uncoated pellets in terms of colitis activity index and the colon's tissue enzymes of MDA and GSH. It seems that the coating composed of enteric and pH-dependent polymethacrylates could tune up the rate of drug release from 5-ASA-coated pellets and trigger drug release based on pH and time.
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Affiliation(s)
- Hossein Shahdadi Sardou
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Akhgari
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hooshang Mohammadpour
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Beheshti Namdar
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Kamali
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hossein Jafarian
- Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hadi Afrasiabi Garekani
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Fatemeh Sadeghi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Pang J, Wang S, Wang Z, Wu Y, Zhang X, Pi Y, Han D, Zhang S, Wang J. Xylo-oligosaccharide alleviates Salmonella induced inflammation by stimulating Bifidobacterium animalis and inhibiting Salmonella colonization. FASEB J 2021; 35:e21977. [PMID: 34613640 DOI: 10.1096/fj.202100919rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 12/12/2022]
Abstract
Xylo-oligosaccharide (XOS), which is considered as a potential prebiotic, exhibits multiple beneficial effects on modulation of gut microbiota, strength of intestinal barrier, and inhibition of intestinal inflammation. The objective of this study is to investigate whether XOS protects against Salmonella infection by modulating gut microbiota, enhancing the intestinal barrier, and resisting colonization. C57BL/6 male mice received water supplementation with 5% XOS for 14 days before Salmonella Typhimurium infection. The results showed that XOS suppressed the Salmonella-induced inflammation, but had limited effects on tight junction molecules and mRNA expression of mucus proteins, except for claudin-1 in the colon. Data of 16S rDNA sequencing indicated that XOS modulated gut microbiota composition by significantly stimulating Bifidobacterium animalis (B. animalis), and reducing Salmonella counts. Therefore, the potential protective effects of B. animalis against Salmonella challenge were investigated as well. Bifidobacterium animalis subsp lactis BB-12 (BB12), which could markedly increase in XOS, was selected to treat mice. Similarly, Salmonella-induced inflammatory reactions were alleviated by BB12 but tight junction molecules and mucin proteins in the colonic tissues were not affected. Administration of BB12 remarkably decreased the copies of Salmonella in cecal digesta post Salmonella infection. Additionally, the decrease concentrations of cecal propionate and total short-chain fatty acids (SCFAs) in Salmonella-infected mice were reversed by BB12 treatment, and propionate performed a strong inhibitory effect on Salmonella growth in vitro. Besides that, BB12 could directly restrict Salmonella proliferation in vitro. Moreover, BB12 reduced the adhesion ability of Salmonella on the Caco-2 cells model. Our results suggest that XOS could be considered as a candidate of functional food to protect against Salmonella infection by stimulating Bifidobacterium, which then resists Salmonella colonization by maintaining the intestinal SCFAs levels and suppressing adhesibility.
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Affiliation(s)
- Jiaman Pang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shilan Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhenyu Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yujun Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiangyu Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yu Pi
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Dandan Han
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shuai Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Junjun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Ladero-Auñon I, Molina E, Oyanguren M, Barriales D, Fuertes M, Sevilla IA, Luo L, Arrazuria R, De Buck J, Anguita J, Elguezabal N. Oral vaccination stimulates neutrophil functionality and exerts protection in a Mycobacterium avium subsp. paratuberculosis infection model. NPJ Vaccines 2021; 6:102. [PMID: 34385469 PMCID: PMC8361088 DOI: 10.1038/s41541-021-00367-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 07/29/2021] [Indexed: 12/31/2022] Open
Abstract
Mycobacterium avium subsp. paratuberculosis (Map) causes paratuberculosis (PTB), a granulomatous enteritis in ruminants that exerts high economic impact on the dairy industry worldwide. Current vaccines have shown to be cost-effective against Map and in some cases confer beneficial non-specific effects against other pathogens suggesting the existence of trained immunity. Although Map infection is mainly transmitted by the fecal-oral route, oral vaccination has not been deeply studied. Therefore, the aim of this study was to compare the oral route with a set of mycobacterial and non-mycobacterial vaccines with a subcutaneously administered commercially available vaccine. Training effects on polymorphonuclear neutrophils (PMNs) and homologous and heterologous in vivo protection against Map were investigated in the rabbit infection model. Oral vaccination with inactivated or live vaccines was able to activate mucosal immunity as seen by elevation of serum IgA and the expression of IL4 in peripheral blood mononuclear cells (PBMCs). In addition, peripheral PMN phagocytosis against Map was enhanced by vaccination and extracellular trap release against Map and non-related pathogens was modified by both, vaccination and Map-challenge, indicating trained immunity. Finally, PBMCs from vaccinated animals stimulated in vitro with Map antigens showed a rapid innate activation cytokine profile. In conclusion, our data show that oral vaccination against PTB can stimulate neutrophil activity and both innate and adaptive immune responses that correlate with protection.
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Affiliation(s)
- Iraia Ladero-Auñon
- Animal Health Department, Basque Institute for Agricultural Research and Development, NEIKER- Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
- Food Quality and Safety Department, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Vitoria, Araba, Spain
| | - Elena Molina
- Animal Health Department, Basque Institute for Agricultural Research and Development, NEIKER- Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
| | - Maddi Oyanguren
- Animal Health Department, Basque Institute for Agricultural Research and Development, NEIKER- Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
| | - Diego Barriales
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
| | - Miguel Fuertes
- Animal Health Department, Basque Institute for Agricultural Research and Development, NEIKER- Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
| | - Iker A Sevilla
- Animal Health Department, Basque Institute for Agricultural Research and Development, NEIKER- Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
| | - Lucy Luo
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Rakel Arrazuria
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Jeroen De Buck
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Juan Anguita
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Natalia Elguezabal
- Animal Health Department, Basque Institute for Agricultural Research and Development, NEIKER- Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain.
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Hartwig O, Shetab Boushehri MA, Shalaby KS, Loretz B, Lamprecht A, Lehr CM. Drug delivery to the inflamed intestinal mucosa - targeting technologies and human cell culture models for better therapies of IBD. Adv Drug Deliv Rev 2021; 175:113828. [PMID: 34157320 DOI: 10.1016/j.addr.2021.113828] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/19/2022]
Abstract
Current treatment strategies for inflammatory bowel disease (IBD) seek to alleviate the undesirable symptoms of the disorder. Despite the higher specificity of newer generation therapeutics, e.g. monoclonal antibodies, adverse effects still arise from their interference with non-specific systemic immune cascades. To circumvent such undesirable effects, both conventional and newer therapeutic options can benefit from various targeting strategies. Of course, both the development and the assessment of the efficiency of such targeted delivery systems necessitate the use of suitable in vivo and in vitro models representing relevant pathophysiological manifestations of the disorder. Accordingly, the current review seeks to provide a comprehensive discussion of the available preclinical models with emphasis on human in vitro models of IBD, along with their potentials and limitations. This is followed by an elaboration on the advancements in the field of biology- and nanotechnology-based targeted drug delivery systems and the potential rooms for improvement to facilitate their clinical translation.
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Affiliation(s)
- Olga Hartwig
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany; Department of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany
| | | | - Karim S Shalaby
- Department of Pharmaceutics, University of Bonn, D-53121 Bonn, Germany; Department of Pharmaceutics and Industrial Pharmacy, Ain Shams University, Cairo, Egypt
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany
| | - Alf Lamprecht
- Department of Pharmaceutics, University of Bonn, D-53121 Bonn, Germany.
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany; Department of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany.
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Sahoo D, Swanson L, Sayed IM, Katkar GD, Ibeawuchi SR, Mittal Y, Pranadinata RF, Tindle C, Fuller M, Stec DL, Chang JT, Sandborn WJ, Das S, Ghosh P. Artificial intelligence guided discovery of a barrier-protective therapy in inflammatory bowel disease. Nat Commun 2021; 12:4246. [PMID: 34253728 DOI: 10.1038/s41467-021-24470-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/21/2021] [Indexed: 12/19/2022] Open
Abstract
Modeling human diseases as networks simplify complex multi-cellular processes, helps understand patterns in noisy data that humans cannot find, and thereby improves precision in prediction. Using Inflammatory Bowel Disease (IBD) as an example, here we outline an unbiased AI-assisted approach for target identification and validation. A network was built in which clusters of genes are connected by directed edges that highlight asymmetric Boolean relationships. Using machine-learning, a path of continuum states was pinpointed, which most effectively predicted disease outcome. This path was enriched in gene-clusters that maintain the integrity of the gut epithelial barrier. We exploit this insight to prioritize one target, choose appropriate pre-clinical murine models for target validation and design patient-derived organoid models. Potential for treatment efficacy is confirmed in patient-derived organoids using multivariate analyses. This AI-assisted approach identifies a first-in-class gut barrier-protective agent in IBD and predicted Phase-III success of candidate agents. Traditional drug discovery process use differential, Bayesian and other network based approaches. We developed a Boolean approach for building disease maps and prioritizing pre-clinical models to discover a first-in-class therapy to restore and protect the leaky gut barrier in inflammatory bowel disease.
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Abstract
The genus Helicobacter defined just over 30 years ago, is a highly diverse and fast-growing group of bacteria that are able to persistently colonize a wide range of animals. The members of this genus are subdivided into two groups with different ecological niches, associated pathologies, and phylogenetic relationships: the gastric Helicobacter (GH) and the enterohepatic Helicobacter (EHH) species. Although GH have been mostly studied, EHH species have become increasingly important as emerging human pathogens and potential zoonotic agents in the last years. This group of bacteria has been associated with the development of several diseases in humans from acute pathologies like gastroenteritis to chronic pathologies that include inflammatory bowel disease, and liver and gallbladder diseases. However, their reservoirs, as well as their routes of transmission, have not been well established yet. Therefore, this review summarizes the current knowledge of taxonomy, epidemiology, and clinical role of the EHH group.
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Affiliation(s)
- Sofia Ochoa
- Faculty of Sciences, Institute of Biochemistry and Microbiology, Universidad Austral de Chile, Valdivia, Chile.,ANID - Millennium Science Initiative Program - Millennium Nucleus in the Biology of the Intestinal Microbiota, Santiago, Chile
| | - Luis Collado
- Faculty of Sciences, Institute of Biochemistry and Microbiology, Universidad Austral de Chile, Valdivia, Chile.,ANID - Millennium Science Initiative Program - Millennium Nucleus in the Biology of the Intestinal Microbiota, Santiago, Chile
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Jain N, Sharma P, Kumar D. Murine models for studying immunopathogenesis in gastrointestinal lesions: How to go about it. INDIAN J PATHOL MICR 2021; 64:S58-S62. [PMID: 34135139 DOI: 10.4103/ijpm.ijpm_802_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Gastro-intestinal (GI) lesions are common outcome to diverse etiological agents affecting the GI tract. It requires significant expertise to accurately diagnose the fundamental cause and treat accordingly. A better understanding of the immunological underpinning of these lesions is of great importance to ensure their successful management. Availability of specific animal models allows us to understand the subtle differences among diverse disease conditions and help decide upon the treatment trajectories. Since murine models are best suited for studying the immunopathogenesis of any disease, we will restrict our discussions here to the available murine models and their applications to study gastrointestinal lesions. In this review, we have systematically examined and compared the variety of mice models that are routinely used to study Inflammatory Bowel disease (IBD) and also how they can be leveraged to address specific questions relating to IBD.
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Affiliation(s)
| | - Priya Sharma
- Cellular Immunology Group, ICGEB, New Delhi, India
| | - Dhiraj Kumar
- Cellular Immunology Group, ICGEB, New Delhi, India
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Daniel K, Vitetta L, Fiatarone Singh MA. Effects of olives and their constituents on the expression of ulcerative colitis: a systematic review of randomised controlled trials. Br J Nutr 2021;:1-19. [PMID: 34100354 DOI: 10.1017/S0007114521001999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Extra virgin olive oil is often associated with anti-inflammatory and antioxidant properties. Its effects on inflammatory conditions such as ulcerative colitis (UC), however, have yet to be defined. As such, we aimed to conduct a systematic review and meta-analysis of studies investigating olive-based interventions in UC. A comprehensive database search for randomised controlled trials was performed between 9 July 2018 and 16 August 2018. Studies identified from search alerts were included up to 22 June 2020. Both individuals living with UC at any disease stage and murine models of UC were included in this review. No human trials meeting the eligibility criteria were identified, while nineteen animal studies comprised 849 murine models of UC were included in this review. Pooling of the data could not be performed due to heterogeneous outcomes; however, general trends favouring olive-based interventions were identified. Milder disease expression including weight maintenance, reduced rectal bleeding and well-formed stools favouring olive-based interventions was statistically significant in 16/19 studies, with moderate-to-large effect sizes (-0·66 (95 % CI -1·56, 0·24) to -12·70 (95 % CI -16·8, -8·7)). Olive-based interventions did not prevent the development of colitis-like pathologies in any study. In conclusion, effects of olive-based interventions on murine models of UC appear promising, with milder disease outcomes favouring the intervention in most trials and effect sizes suggesting potential clinical relevance. However, the lack of published randomised controlled human trials warrants further investigation to determine if these effects would translate to individuals living with UC.
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Charbaji R, Kar M, Theune LE, Bergueiro J, Eichhorst A, Navarro L, Graff P, Stumpff F, Calderón M, Hedtrich S. Design and Testing of Efficient Mucus-Penetrating Nanogels-Pitfalls of Preclinical Testing and Lessons Learned. Small 2021; 17:e2007963. [PMID: 33719187 DOI: 10.1002/smll.202007963] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/04/2021] [Indexed: 06/12/2023]
Abstract
Mucosal surfaces pose a challenging environment for efficient drug delivery. Various delivery strategies such as nanoparticles have been employed so far; yet, still yielding limited success. To address the need of efficient transmucosal drug delivery, this report presents the synthesis of novel disulfide-containing dendritic polyglycerol (dPG)-based nanogels and their preclinical testing. A bifunctional disulfide-containing linker is coupled to dPG to act as a macromolecular crosslinker for poly-N-isopropylacrylamide (PNIPAM) and poly-N-isopropylmethacrylamide (PNIPMAM) in a precipitation polymerization process. A systematic analysis of the polymerization reveals the importance of a careful polymer choice to yield mucus-degradable nanogels with diameters between 100 and 200 nm, low polydispersity, and intact disulfide linkers. Absorption studies in porcine intestinal tissue and human bronchial epithelial models demonstrate that disulfide-containing nanogels are highly efficient in overcoming mucosal barriers. The nanogels efficiently degrade and deliver the anti-inflammatory biomacromolecule etanercept into epithelial tissues yielding local anti-inflammatory effects. Over the course of this work, several problems are encountered due to a limited availability of valid test systems for mucosal drug-delivery systems. Hence, this study also emphasizes how critical a combined and multifaceted approach is for the preclinical testing of mucosal drug-delivery systems, discusses potential pitfalls, and provides suggestions for solutions.
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Affiliation(s)
- Rawan Charbaji
- Freie Universität Berlin, Institute for Pharmaceutical Sciences, Königin-Luise-Strasse 2-4, 14195, Berlin, Germany
| | - Mrityunjoy Kar
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, Takustr. 3, 14195, Berlin, Germany
| | - Loryn E Theune
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, Takustr. 3, 14195, Berlin, Germany
| | - Julián Bergueiro
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, Takustr. 3, 14195, Berlin, Germany
| | - Anne Eichhorst
- Freie Universität Berlin, Institute for Pharmaceutical Sciences, Königin-Luise-Strasse 2-4, 14195, Berlin, Germany
| | - Lucila Navarro
- Freie Universität Berlin, Institute for Pharmaceutical Sciences, Königin-Luise-Strasse 2-4, 14195, Berlin, Germany
| | - Patrick Graff
- Freie Universität Berlin, Institute for Pharmaceutical Sciences, Königin-Luise-Strasse 2-4, 14195, Berlin, Germany
| | - Friederike Stumpff
- Institute of Veterinary Physiology, Department of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
| | - Marcelo Calderón
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, Takustr. 3, 14195, Berlin, Germany
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián, 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Sarah Hedtrich
- Freie Universität Berlin, Institute for Pharmaceutical Sciences, Königin-Luise-Strasse 2-4, 14195, Berlin, Germany
- University of British Columbia, Faculty of Pharmaceutical Sciences, 2405 Wesbrook Mall, Vancouver, V6T1Z3, Canada
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50
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Yoshida S, Inaba H, Nomura R, Murakami M, Yasuda H, Nakano K, Matsumoto-Nakano M. Efficacy of FimA antibody and clindamycin in silkworm larvae stimulated with Porphyromonas gulae. J Oral Microbiol 2021; 13:1914499. [PMID: 33968314 PMCID: PMC8079003 DOI: 10.1080/20002297.2021.1914499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objective: Porphyromonas gulae, a major periodontal pathogen in animals, possesses fimbriae that have been classified into three genotypes (A, B, C) based on the diversity of fimA genes encoding fimbrillin protein (FimA). P. gulae strains with type C fimbriae were previously shown to be more virulent than other types. In this study, we further examined the host toxicity mediated by P. gulae fimbriae by constructing recombinant FimA (rFimA) expression vectors for each genotype and raised antibodies to the purified proteins. Methods and Results: All larvae died within 204 h following infection with P. gulae type C at the low-dose infection, whereas type A and B did not. Among fimA types, the survival rates of the larvae injected with rFimA type C were remarkably decreased, while the survival rates of the larvae injected with rFimA type A and type B were greater than 50%. Clindamycin treatment inhibited the growth of type C strains in a dose-dependent manner, resulting in an increased rate of silkworm survival. Finally, type C rFimA-specific antiserum prolonged the survival of silkworm larvae stimulated by infection with P. gulae type C strain or injection of rFimA type C protein. Conclusion: These results suggested that type C fimbriae have high potential for enhancement of bacterial pathogenesis, and that both clindamycin and anti-type C rFimA-specific antibodies are potent inhibitors of type C fimbriae-induced toxicity. This is the first report to establish a silkworm infection model using P. gulae for toxicity assessment.
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Affiliation(s)
- Sho Yoshida
- Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroaki Inaba
- Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ryota Nomura
- Department of Pediatric Dentistry, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Masaru Murakami
- Departments of Pharmacology, Veterinary Public Health II and Molecular Biology, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | | | - Kazuhiko Nakano
- Department of Pediatric Dentistry, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Michiyo Matsumoto-Nakano
- Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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