1
|
Melchior K, Gerner RR, Hossain S, Nuccio SP, Moreira CG, Raffatellu M. IL-22-dependent responses and their role during Citrobacter rodentium infection. Infect Immun 2024:e0009924. [PMID: 38557196 DOI: 10.1128/iai.00099-24] [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: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
The mouse pathogen Citrobacter rodentium is utilized as a model organism for studying infections caused by the human pathogens enteropathogenic Escherichia coli (EPEC) and enterohemorrhagic E. coli (EHEC) and to elucidate mechanisms of mucosal immunity. In response to C. rodentium infection, innate lymphoid cells and T cells secrete interleukin (IL)-22, a cytokine that promotes mucosal barrier function. IL-22 plays a pivotal role in enabling mice to survive and recover from C. rodentium infection, although the exact mechanisms involved remain incompletely understood. Here, we investigated whether particular components of the host response downstream of IL-22 contribute to the cytokine's protective effects during C. rodentium infection. In line with previous research, mice lacking the IL-22 gene (Il22-/- mice) were highly susceptible to C. rodentium infection. To elucidate the role of specific antimicrobial proteins modulated by IL-22, we infected the following knockout mice: S100A9-/- (calprotectin), Lcn2-/- (lipocalin-2), Reg3b-/- (Reg3β), Reg3g-/- (Reg3γ), and C3-/- (C3). All knockout mice tested displayed a considerable level of resistance to C. rodentium infection, and none phenocopied the lethality observed in Il22-/- mice. By investigating another arm of the IL-22 response, we observed that C. rodentium-infected Il22-/- mice exhibited an overall decrease in gene expression related to intestinal barrier integrity as well as significantly elevated colonic inflammation, gut permeability, and pathogen levels in the spleen. Taken together, these results indicate that host resistance to lethal C. rodentium infection may depend on multiple antimicrobial responses acting in concert, or that other IL-22-regulated processes, such as tissue repair and maintenance of epithelial integrity, play crucial roles in host defense to attaching and effacing pathogens.
Collapse
Affiliation(s)
- Karine Melchior
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, California, USA
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Romana R Gerner
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, California, USA
- School of Life Sciences, ZIEL - Institute for Food and Health, Freising-Weihenstephan, Technical University of Munich, Munich, Germany
- Department of Internal Medicine III, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Suzana Hossain
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, California, USA
| | - Sean-Paul Nuccio
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, California, USA
| | - Cristiano Gallina Moreira
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Manuela Raffatellu
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, California, USA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, California, USA
- Chiba University-UC San Diego Center for Mucosal Immunology, Allergy, and Vaccines (CU-UCSD cMAV), La Jolla, California, USA
| |
Collapse
|
2
|
Ahmad W, Din AU, Khan TM, Rehman MU, Hassan A, Aziz T, Alharbi M, Wu J. Lacticaseibacillusparacasei BNCC345679 revolutionizes DSS-induced colitis and modulates gut microbiota. Front Microbiol 2024; 15:1343891. [PMID: 38601942 PMCID: PMC11004379 DOI: 10.3389/fmicb.2024.1343891] [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: 11/24/2023] [Accepted: 02/22/2024] [Indexed: 04/12/2024] Open
Abstract
The gut microbiota plays an important role in the disease progression of inflammatory bowel disease. Although probiotics are effective against IBD, not many studies have investigated their effects on gut microbiota composition and immunomodulation in mouse colitis models. Our study aimed at the therapeutic effects of Lacticaseibacillus paracasei BNCC345679 for the first time and explored its impact on gut microbiome dysbiosis, inflammatory cytokines, related miRNAs, VCAM-1, oxidative stress, intestinal integrity, and mucus barrier. We found that oral intervention of L. paracasei BNCC345679 affects recovering beneficial microbial taxa, including lactobacillus spp. and akkermansia spp., followed by improved body weight, DAI score, and inflammatory cytokines. L. paracasei BNCC345679 mitigated oxidative stress and increased the expression of intestinal integrity proteins MUC2 and ZO-1. These results suggested that L. paracasei BNCC345679 has the capacity to reduce DSS-induced colitis and has the potential as a supplement for the mitigation of IBD.
Collapse
Affiliation(s)
- Waqar Ahmad
- Basic Medicine Research Innovation Centre for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, China
| | - Ahmad Ud Din
- Basic Medicine Research Innovation Centre for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, China
- Plants for Human Health Institute, Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Kannapolis, NC, United States
| | - Taj Malook Khan
- Basic Medicine Research Innovation Centre for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, China
| | - Mujeeb Ur Rehman
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Adil Hassan
- Laboratory of Nano/Micro Composite Materials and Devices, Chongqing University of Science and Technology, Chongqing, China
| | - Tariq Aziz
- Department of Agriculture, University of Ioannina, Ioannina, Greece
| | - Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Jianbo Wu
- Basic Medicine Research Innovation Centre for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Institute of Cardiovascular Research of Southwest Medical University, Luzhou, China
- Laboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| |
Collapse
|
3
|
Solitano V, Jairath V, Ungaro F, Peyrin-Biroulet L, Danese S. TL1A inhibition for inflammatory bowel disease treatment: From inflammation to fibrosis. Med 2024:S2666-6340(24)00122-3. [PMID: 38574740 DOI: 10.1016/j.medj.2024.03.010] [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: 12/15/2023] [Revised: 02/09/2024] [Accepted: 03/13/2024] [Indexed: 04/06/2024]
Abstract
The pivotal role of TL1A in modulating immune pathways crucial for inflammatory bowel disease (IBD) and intestinal fibrosis offers a promising therapeutic target. Phase 2 trials (TUSCANY and ARTEMIS-UC) evaluating an anti-TL1A antibody show progress in expanding IBD therapeutic options. First-in-human data reveal reduced expression of genes associated with extracellular matrix remodeling and fibrosis post-anti-TL1A treatment. Investigational drug TEV-48574, potentially exerting dual antifibrotic and anti-inflammatory effects, is undergoing a phase 2 basket study in both ulcerative colitis (UC) and Crohn disease (CD). Results are eagerly awaited, marking advancements in IBD therapeutics. This critical review comprehensively examines the existing literature, illuminating TL1A and the intricate role of DR3 in IBD, emphasizing the evolving therapeutic landscape and ongoing clinical trials, with potential implications for more effective IBD management.
Collapse
Affiliation(s)
- Virginia Solitano
- Division of Gastroenterology, Western University, London, ON, Canada; Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, Milan, Italy
| | - Vipul Jairath
- Division of Gastroenterology, Western University, London, ON, Canada; Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - Federica Ungaro
- Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, Milan, Italy; Division of Immunology, Transplantation, and Infectious Disease, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology and Inserm NGERE U1256, University Hospital of Nancy, University of Lorraine, Vandoeuvre-lès-Nancy, France; Department of Gastroenterology, Nancy University Hospital, Vandœuvre-lès-Nancy, France; INFINY Institute, Nancy University Hospital, Vandœuvre-lès-Nancy, France; FHU-CURE, Nancy University Hospital, Vandœuvre-lès-Nancy, France; Groupe Hospitalier privé Ambroise Paré - Hartmann, Paris IBD Center, Neuilly sur Seine, France; Division of Gastroenterology and Hepatology, McGill University Health Centre, Montreal, QC, Canada
| | - Silvio Danese
- Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, Milan, Italy.
| |
Collapse
|
4
|
Gül E, Huuskonen J, Abi Younes A, Maurer L, Enz U, Zimmermann J, Sellin ME, Bakkeren E, Hardt WD. Salmonella T3SS-2 virulence enhances gut-luminal colonization by enabling chemotaxis-dependent exploitation of intestinal inflammation. Cell Rep 2024; 43:113925. [PMID: 38460128 DOI: 10.1016/j.celrep.2024.113925] [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: 06/23/2023] [Revised: 01/12/2024] [Accepted: 02/20/2024] [Indexed: 03/11/2024] Open
Abstract
Salmonella Typhimurium (S.Tm) utilizes the chemotaxis receptor Tsr to exploit gut inflammation. However, the characteristics of this exploitation and the mechanism(s) employed by the pathogen to circumvent antimicrobial effects of inflammation are poorly defined. Here, using different naturally occurring S.Tm strains (SL1344 and 14028) and competitive infection experiments, we demonstrate that type-three secretion system (T3SS)-2 virulence is indispensable for the beneficial effects of Tsr-directed chemotaxis. The removal of the 14028-specific prophage Gifsy3, encoding virulence effectors, results in the loss of the Tsr-mediated fitness advantage in that strain. Surprisingly, without T3SS-2 effector secretion, chemotaxis toward the gut epithelium using Tsr becomes disadvantageous for either strain. Our findings reveal that luminal neutrophils recruited as a result of NLRC4 inflammasome activation locally counteract S.Tm cells exploiting the byproducts of the host immune response. This work highlights a mechanism by which S.Tm exploitation of gut inflammation for colonization relies on the coordinated effects of chemotaxis and T3SS activities.
Collapse
Affiliation(s)
- Ersin Gül
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland.
| | - Jemina Huuskonen
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Andrew Abi Younes
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Luca Maurer
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Ursina Enz
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Jakob Zimmermann
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department for Biomedical Research, University of Bern, Bern, Switzerland
| | - Mikael E Sellin
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden; Science for Life Laboratory, Uppsala, Sweden
| | - Erik Bakkeren
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Wolf-Dietrich Hardt
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland.
| |
Collapse
|
5
|
Lewis ED, Ortega EF, Dao MC, Barger K, Mason JB, Leong JM, Osburne MS, Magoun L, Nepveux FJ, Chishti AH, Schwake C, Quynh A, Gilhooly CH, Petty G, Guo W, Matuszek G, Pereira D, Reddy M, Wang J, Wu D, Meydani SN, Combs GF. Corrigendum: Safe and effective delivery of supplemental iron to healthy adults: a two-phase, randomized, double-blind trial - the safe iron study. Front Nutr 2024; 11:1376599. [PMID: 38476600 PMCID: PMC10927985 DOI: 10.3389/fnut.2024.1376599] [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: 01/25/2024] [Accepted: 02/12/2024] [Indexed: 03/14/2024] Open
Abstract
[This corrects the article DOI: 10.3389/fnut.2023.1230061.].
Collapse
Affiliation(s)
- Erin D. Lewis
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Edwin F. Ortega
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Maria Carlota Dao
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Kathryn Barger
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Joel B. Mason
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - John M. Leong
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Marcia S. Osburne
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Loranne Magoun
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Felix J. Nepveux
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Athar H. Chishti
- Department of Developmental, Molecular and Chemical Biology, Tufts University, Boston, MA, United States
| | - Christopher Schwake
- Department of Developmental, Molecular and Chemical Biology, Tufts University, Boston, MA, United States
| | - Anh Quynh
- Department of Developmental, Molecular and Chemical Biology, Tufts University, Boston, MA, United States
| | - Cheryl H. Gilhooly
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Gayle Petty
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Weimin Guo
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Gregory Matuszek
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Dora Pereira
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Manju Reddy
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
| | - Jifan Wang
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Dayong Wu
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Simin N. Meydani
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Gerald F. Combs
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| |
Collapse
|
6
|
Schwärzler J, Mayr L, Grabherr F, Tilg H, Adolph TE. Epithelial metabolism as a rheostat for intestinal inflammation and malignancy. Trends Cell Biol 2024:S0962-8924(24)00004-7. [PMID: 38341347 DOI: 10.1016/j.tcb.2024.01.004] [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: 11/20/2023] [Revised: 01/06/2024] [Accepted: 01/12/2024] [Indexed: 02/12/2024]
Abstract
The gut epithelium protects the host from a potentially hostile environment while allowing nutrient uptake that is vital for the organism. To maintain this delicate task, the gut epithelium has evolved multilayered cellular functions ranging from mucus production to hormone release and orchestration of mucosal immunity. Here, we review the execution of intestinal epithelial metabolism in health and illustrate how perturbation of epithelial metabolism affects experimental gut inflammation and tumorigenesis. We also discuss the impact of environmental factors and host-microbe interactions on epithelial metabolism in the context of inflammatory bowel disease and colorectal cancer. Insights into epithelial metabolism hold promise to unravel mechanisms of organismal health that may be therapeutically exploited in humans in the future.
Collapse
Affiliation(s)
- Julian Schwärzler
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, and Metabolism, Medical University of Innsbruck, Innsbruck, Austria.
| | - Lisa Mayr
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, and Metabolism, Medical University of Innsbruck, Innsbruck, Austria
| | - Felix Grabherr
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, and Metabolism, Medical University of Innsbruck, Innsbruck, Austria
| | - Herbert Tilg
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, and Metabolism, Medical University of Innsbruck, Innsbruck, Austria
| | - Timon E Adolph
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, and Metabolism, Medical University of Innsbruck, Innsbruck, Austria.
| |
Collapse
|
7
|
Padhi S, Sarkar P, Sahoo D, Rai AK. Potential of fermented foods and their metabolites in improving gut microbiota function and lowering gastrointestinal inflammation. J Sci Food Agric 2024. [PMID: 38299734 DOI: 10.1002/jsfa.13313] [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] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/12/2024] [Accepted: 01/13/2024] [Indexed: 02/02/2024]
Abstract
Foods prepared using microbial conversion of major and minor food components, which are otherwise known as fermented foods continue to impact human health. The live microorganisms and transformed metabolites can also have a deep influence on the gut microbiota, the multifaceted population of microorganisms dwelling inside the gut play a key role in wellbeing of an individual. The probiotic strains delivered through the consumption of fermented food and other bioactive components such as polyphenolic metabolites, bioactive peptides, short-chain fatty acids and others including those produced via gut microbiota mediated transformations have been proposed to balance the gut microbiota diversity and activity, and also to regulate the inflammation in the gut. However, little is known about such effects and only a handful of fermented foods have been explored to date. We herein review the recent knowledge on the dysbiotic gut microbiota linking to major gut inflammatory diseases. Also, evidences that fermented food consumption modulates the gut microbiota, and its impact on the gut inflammation and inflammatory diseases have been discussed. © 2024 Society of Chemical Industry.
Collapse
Affiliation(s)
- Srichandan Padhi
- Nutrition Biotechnlogy Division, National Agri-Food Biotechnology Institute, Mohali, India
| | - Puja Sarkar
- Nutrition Biotechnlogy Division, National Agri-Food Biotechnology Institute, Mohali, India
| | | | - Amit Kumar Rai
- Nutrition Biotechnlogy Division, National Agri-Food Biotechnology Institute, Mohali, India
| |
Collapse
|
8
|
Mikulic N, Uyoga MA, Stoffel NU, Derrien M, Nyilima S, Kostopoulos I, Roeselers G, Chenoll E, Mwasi E, Pironaci G, Karanja S, Bourdet-Sicard R, Zimmermann MB. Prebiotics increase iron absorption and reduce the adverse effects of iron on the gut microbiome and inflammation: a randomized controlled trial using iron stable isotopes in Kenyan infants. Am J Clin Nutr 2024; 119:456-469. [PMID: 38042412 PMCID: PMC10884607 DOI: 10.1016/j.ajcnut.2023.11.018] [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: 04/20/2023] [Revised: 11/18/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023] Open
Abstract
BACKGROUND Iron fortificants tend to be poorly absorbed and may adversely affect the gut, especially in African children. OBJECTIVE We assessed the effects of prebiotic galacto-oligosaccharides/fructo-oligosaccharides (GOS/FOS) on iron absorption and gut health when added to iron-fortified infant cereal. METHODS We randomly assigned Kenyan infants (n = 191) to receive daily for 3 wk a cereal containing iron and 7.5 g GOS/FOS (7.5 g+iron group), 3 g (3-g+iron group) GOS/FOS, or no prebiotics (iron group). A subset of infants in the 2 prebiotic+iron groups (n = 66) consumed 4 stable iron isotope-labeled test meals without and with prebiotics, both before and after the intervention. Primary outcome was fractional iron absorption (FIA) from the cereal with or without prebiotics regardless of dose, before and after 3 wk of consumption. Secondary outcomes included fecal gut microbiota, iron and inflammation status, and effects of prebiotic dose. RESULTS Median (25th-75th percentiles) FIAs from meals before intervention were as follows: 16.3% (8.0%-27.6%) without prebiotics compared with 20.5% (10.4%-33.4%) with prebiotics (Cohen d = 0.53; P < 0.001). FIA from the meal consumed without prebiotics after intervention was 22.9% (8.5%-32.4%), 41% higher than from the meal without prebiotics before intervention (Cohen d = 0.36; P = 0.002). FIA from the meal consumed with prebiotics after intervention was 26.0% (12.2%-36.1%), 60% higher than from the meal without prebiotics before intervention (Cohen d = 0.45; P = 0.007). After 3 wk, compared with the iron group, the following results were observed: 1) Lactobacillus sp. abundances were higher in both prebiotic+iron groups (P < 0.05); 2) Enterobacteriaceae sp. abundances (P = 0.022) and the sum of pathogens (P < 0.001) were lower in the 7.5-g+iron group; 3) the abundance of bacterial toxin-encoding genes was lower in the 3-g+iron group (false discovery rate < 0.05); 4) fecal pH (P < 0.001) and calprotectin (P = 0.033) were lower in the 7.5-g+iron group. CONCLUSIONS Adding prebiotics to iron-fortified infant cereal increases iron absorption and reduces the adverse effects of iron on the gut microbiome and inflammation in Kenyan infants. This trial was registered at clinicaltrials.gov as NCT03894358.
Collapse
Affiliation(s)
- Nadja Mikulic
- Laboratory of Human Nutrition, Department of Health Sciences and Technology, ETH Zurich, Switzerland
| | - Mary A Uyoga
- Laboratory of Human Nutrition, Department of Health Sciences and Technology, ETH Zurich, Switzerland
| | - Nicole U Stoffel
- Laboratory of Human Nutrition, Department of Health Sciences and Technology, ETH Zurich, Switzerland
| | | | - Suzane Nyilima
- Public and Community Health Department, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | | | | | | | - Edith Mwasi
- Paediatrics Department, Msambweni County Referral Hospital, Msambweni, Kenya
| | - Giulia Pironaci
- Laboratory of Human Nutrition, Department of Health Sciences and Technology, ETH Zurich, Switzerland
| | - Simon Karanja
- Public and Community Health Department, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | | | - Michael B Zimmermann
- Medical Research Council Translational Immune Discovery Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford, United Kingdom.
| |
Collapse
|
9
|
Alake SE, Ice J, Robinson K, Price P, Hatter B, Wozniak K, Lin D, Chowanadisai W, Smith BJ, Lucas EA. Reduced estrogen signaling contributes to bone loss and cardiac dysfunction in interleukin-10 knockout mice. Physiol Rep 2024; 12:e15914. [PMID: 38217044 PMCID: PMC10787104 DOI: 10.14814/phy2.15914] [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: 08/28/2023] [Revised: 12/02/2023] [Accepted: 12/07/2023] [Indexed: 01/14/2024] Open
Abstract
Characterization of the interleukin (IL)-10 knockout (KO) mouse with chronic gut inflammation, cardiovascular dysfunction, and bone loss suggests a critical role for this cytokine in interorgan communication within the gut, bone, and cardiovascular axis. We sought to understand the role of IL-10 in the cross-talk between these systems. Six-week-old IL-10 KO mice and their wild type (WT) counterparts were maintained on a standard rodent diet for 3 or 6 months. Gene expression of proinflammatory markers and Fgf23, serum 17β-estradiol (E2), and cardiac protein expression were assessed. Ileal Il17a and Tnf mRNA increased while Il6 mRNA increased in the bone and heart by at least 2-fold in IL-10 KO mice. Bone Dmp1 and Phex mRNA were repressed at 6 months in IL-10 KO mice, resulting in increased Fgf23 mRNA (~4-fold) that contributed to increased fibrosis. In the IL-10 KO mice, gut bacterial β-glucuronidase activity and ovarian Cyp19a1 mRNA were lower (p < 0.05), consistent with reduced serum E2 and reduced cardiac pNOS3 (Ser1119 ) in these mice. Treatment of ileal lymphocytes with E2 reduced gut inflammation in WT but not IL-10 KO mice. In conclusion, our data suggest that diminished estrogen and defective bone mineralization increased FGF23 which contributed to cardiac fibrosis in the IL-10 KO mouse.
Collapse
Affiliation(s)
- Sanmi E. Alake
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| | - John Ice
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| | - Kara Robinson
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| | - Payton Price
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| | - Bethany Hatter
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| | - Karen Wozniak
- Department of Microbiology and Molecular GeneticsOklahoma State UniversityStillwaterOklahomaUSA
| | - Dingbo Lin
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| | - Winyoo Chowanadisai
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| | - Brenda J. Smith
- Department of Obstetrics and GynecologyIndiana School of MedicineIndianapolisIndianaUSA
- Indiana Center for Musculoskeletal HealthIndiana School of MedicineIndianapolisIndianaUSA
| | - Edralin A. Lucas
- Department of Nutritional SciencesOklahoma State UniversityStillwaterOklahomaUSA
| |
Collapse
|
10
|
Tang W, Wei Y, Ni Z, Hou K, Luo XM, Wang H. IgA-mediated control of host-microbial interaction during weaning reaction influences gut inflammation. Gut Microbes 2024; 16:2323220. [PMID: 38439579 PMCID: PMC10936605 DOI: 10.1080/19490976.2024.2323220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/21/2024] [Indexed: 03/06/2024] Open
Abstract
The mechanisms of how host-microbe mutualistic relationships are established at weaning contingently upon B-cell surveillance remain inadequately elucidated. We found that CD138+ plasmacyte (PC)-mediated promotion of IgA response regulates the symbiosis between Bacteroides uniformis (B. uniformis) and the host during the weaning period. The IgA-skewed response of CD138+ PCs is essential for B. uniformis to occupy a defined gut luminal niche, thereby fostering stable colonization. Furthermore, B. uniformis within the natural gut niche was perturbed in the absence of IgA, resulting in exacerbated gut inflammation in IgA-deficient mice and weaned piglets. Thus, we propose that the priming and maintenance of intestinal IgA response from CD138+ PCs are required for host-microbial symbiosis, whereas the perturbation of which would enhance inflammation in weaning process.
Collapse
Affiliation(s)
- Wenjie Tang
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Yusen Wei
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Zhixiang Ni
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Kangwei Hou
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Xin M Luo
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Haifeng Wang
- College of Animal Science, Zhejiang University, Hangzhou, China
| |
Collapse
|
11
|
Thapaliya G, Eldeghaidy S, Radford SJ, Francis ST, Moran GW. An examination of resting-state functional connectivity in patients with active Crohn's disease. Front Neurosci 2023; 17:1265815. [PMID: 38125406 PMCID: PMC10731262 DOI: 10.3389/fnins.2023.1265815] [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: 07/23/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Background Alterations in resting state functional connectivity (rs-FC) in Crohn's Disease (CD) have been documented in default mode network (DMN) and frontal parietal network (FPN) areas, visual, cerebellar, salience and attention resting-state-networks (RSNs), constituting a CD specific neural phenotype. To date, most studies are in patients in remission, with limited studies in active disease. Methods Twenty five active CD cases and 25 age-, BMI- and gender-matched healthy controls (HC) were recruited to a resting-state-functional Magnetic Resonance Imaging (rs-fMRI) study. Active disease was defined as C-reactive protein>5 mg/dL, faecal calprotectin>250 μg/g, or through ileocolonoscopy or MRE. rs-fMRI data were analysed using independent component analysis (ICA) and dual regression. Differences in RSNs between HCs and active CD were assessed, and rs-FC was associated with disease duration and abdominal pain. Results Increased connectivity in the FPN (fusiform gyrus, thalamus, caudate, posterior cingulate cortex, postcentral gyrus) and visual RSN (orbital frontal cortex) were observed in CD versus HC. Decreased activity was observed in the salience network (cerebellum, postcentral gyrus), DMN (parahippocampal gyrus, cerebellum), and cerebellar network (occipital fusiform gyrus, cerebellum) in CD versus HCs. Greater abdominal pain scores were associated with lower connectivity in the precuneus (visual network) and parietal operculum (salience network), and higher connectivity in the cerebellum (frontal network). Greater disease duration was associated with greater connectivity in the middle temporal gyrus and planum temporale (visual network). Conclusion Alterations in rs-FC in active CD in RSNs implicated in cognition, attention, emotion, and pain may represent neural correlates of chronic systemic inflammation, abdominal pain, disease duration, and severity.
Collapse
Affiliation(s)
- Gita Thapaliya
- Division of Child and Adolescent Psychiatry, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Sally Eldeghaidy
- Division of Food, Nutrition and Dietetics, School of Biosciences, The University of Nottingham, Loughborough, United Kingdom
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and School of Medicine, The University of Nottingham, Nottingham, United Kingdom
| | - Shellie J. Radford
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and School of Medicine, The University of Nottingham, Nottingham, United Kingdom
| | - Susan T. Francis
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and School of Medicine, The University of Nottingham, Nottingham, United Kingdom
| | - Gordon William Moran
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and School of Medicine, The University of Nottingham, Nottingham, United Kingdom
- Translational Medical Sciences Unit, University of Nottingham, Nottingham, United Kingdom
| |
Collapse
|
12
|
Salvatori S, Neri B, Marafini I, Brigida M, Monteleone G. Emerging oral drug options for ulcerative colitis. Expert Opin Emerg Drugs 2023; 28:191-201. [PMID: 37668153 DOI: 10.1080/14728214.2023.2254686] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/22/2023] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
INTRODUCTION Despite the availability of a variety of therapeutic compounds and improved management strategies, one-third of UC patients with moderate-to-severe disease do not benefit from the existing treatments or experience drug-related side effects. This has boosted intensive research focusing on the development of new drugs for UC therapy. This article aims to summarize the available evidence on oral drugs, which are now being explored in clinical trials or are ready to enter the clinics. AREAS COVERED From May 15 to June 11, we searched on PubMed using the keywords 'oral drugs ulcerative colitis,' 'ulcerative colitis clinical trials,' 'UC phase 2 and 3 trials' excluding case reports, case series, phase 1 and 4 studies, and studies about approved therapies. EXPERT OPINION The findings discussed in this article suggest that the future treatment of UC patients will be probably characterized by the possibility of using various small-molecule drugs. All these new compounds, even those belonging to the same class, differ in terms of efficacy and safety. Identification of predictors of response could help optimize the efficacy and safety of these treatments, thus improving resource allocation through a pretreatment stratification of patients.
Collapse
Affiliation(s)
- Silvia Salvatori
- Gastroenterology Unit, Policlinico Universitario Tor Vergata, Rome, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Benedetto Neri
- Gastroenterology Unit, Policlinico Universitario Tor Vergata, Rome, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Irene Marafini
- Gastroenterology Unit, Policlinico Universitario Tor Vergata, Rome, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Mattia Brigida
- Gastroenterology Unit, Policlinico Universitario Tor Vergata, Rome, Italy
| | - Giovanni Monteleone
- Gastroenterology Unit, Policlinico Universitario Tor Vergata, Rome, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| |
Collapse
|
13
|
Rodríguez-Camejo C, Puyol A, Arbildi P, Sóñora C, Fazio L, Siré G, Hernández A. Effects of human donor milk on gut barrier function and inflammation: in vitro study of the beneficial properties to the newborn. Front Immunol 2023; 14:1282144. [PMID: 38022652 PMCID: PMC10663376 DOI: 10.3389/fimmu.2023.1282144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The gastrointestinal and immune systems of premature infants are not fully developed, rendering them more vulnerable to severe complications like necrotizing enterocolitis. Human milk offers a rich array of bioactive factors that collectively contribute to reducing the incidence of gut infections and inflammatory conditions. When a mother's milk is unavailable, preterm infants are often provided with donor human milk processed in Human Milk Banks. However, it remains uncertain whether pasteurized milk confers the same level of risk reduction as unprocessed milk. This uncertainty may stem from the well-documented adverse effects of heat treatment on milk composition. Yet, our understanding of the comprehensive impact on protective mechanisms is limited. Methods In this study, we conducted a comparative analysis of the effects of raw versus pasteurized milk and colostrum versus mature milk on cellular functions associated with the gut epithelial barrier and responses to inflammatory stimuli. We utilized THP-1 and HT-29 cell lines, representing monocyte/macrophages and gut epithelial cells, respectively. Results Our observations revealed that all milk types stimulated epithelial cell proliferation. However, only raw colostrum increased cell migration and interfered with the interaction between E. coli and epithelial cells. Furthermore, the response of epithelial and macrophage cells to lipopolysaccharide (LPS) was enhanced solely by raw colostrum, with a milder effect observed with mature milk. In contrast, both raw and pasteurized milk diminished the LPS induced response in monocytes. Lastly, we examined how milk affected the differentiation of monocytes into macrophages, finding that milk reduced the subsequent inflammatory response of macrophages to LPS. Discussion Our study sheds light on the impact of human milk on certain mechanisms that potentially account for its protective effects against necrotizing enterocolitis, highlighting the detrimental influence of pasteurization on some of these mechanisms. Our findings emphasize the urgency of developing alternative pasteurization methods to better preserve milk properties. Moreover, identifying the key components critically affected by these protective mechanisms could enable their inclusion in donor milk or formula, thereby enhancing immunological benefits for vulnerable newborns.
Collapse
Affiliation(s)
- Claudio Rodríguez-Camejo
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay
- Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Inmunología, Instituto de Higiene “Prof. Arnoldo Berta”, Universidad de la República, Montevideo, Uruguay
| | - Arturo Puyol
- Banco de Leche “Ruben Panizza”, Centro Hospitalario Pereira Rossell, Administración de los Servicios de Salud del Estado, Montevideo, Uruguay
| | - Paula Arbildi
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay
- Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Inmunología, Instituto de Higiene “Prof. Arnoldo Berta”, Universidad de la República, Montevideo, Uruguay
| | - Cecilia Sóñora
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay
- Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Inmunología, Instituto de Higiene “Prof. Arnoldo Berta”, Universidad de la República, Montevideo, Uruguay
- Escuela Universitaria de Tecnología Médica (EUTM), Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Laura Fazio
- Banco de Leche “Ruben Panizza”, Centro Hospitalario Pereira Rossell, Administración de los Servicios de Salud del Estado, Montevideo, Uruguay
| | - Gabriela Siré
- Banco de Leche “Ruben Panizza”, Centro Hospitalario Pereira Rossell, Administración de los Servicios de Salud del Estado, Montevideo, Uruguay
| | - Ana Hernández
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay
- Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Inmunología, Instituto de Higiene “Prof. Arnoldo Berta”, Universidad de la República, Montevideo, Uruguay
| |
Collapse
|
14
|
Magryś A, Pawlik M. Postbiotic Fractions of Probiotics Lactobacillus plantarum 299v and Lactobacillus rhamnosus GG Show Immune-Modulating Effects. Cells 2023; 12:2538. [PMID: 37947616 PMCID: PMC10648844 DOI: 10.3390/cells12212538] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 09/07/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023] Open
Abstract
Probiotic bacteria belonging to Lactobacillus spp. are important producers of bioactive molecules, known as postbiotics, that play essential roles in the immunological support of the intestinal mucosa. In this study, the system of co-culture of intestinal epithelial cells with macrophage cells in vitro was used to study the potential effect of postbiotic fractions of L. rhamonosus and L. plantarum on the modulation of the immune response induced by pro-inflammatory stimuli. This study's results revealed that the presence of probiotic bacterial components on the mucosal surface in the early and late stage of inflammatory conditions is based on cellular interactions that control inflammation and consequent damage to the intestinal epithelium. In our studies, heat killed fractions of probiotic bacteria and their extracted proteins showed a beneficial effect on controlling inflammation, regardless of the strain tested, consequently protecting intestinal barrier damage. In conclusion, the presented results emphasize that the fractions of probiotic bacteria of L. plantarum and L. rhamnosus may play a significant role in the regulation of LPS-mediated cytotoxic activity in intestinal epithelial cells. The fractions of probiotic strains of L. rhamnosus and L. plantarum showed the potential to suppress inflammation, effectively activating the anti-inflammatory cytokine IL-10 and modulating the IL-18-related response.
Collapse
Affiliation(s)
- Agnieszka Magryś
- Chair and Department of Medical Microbiology, Medical University of Lublin, ul. Chodźki 1, 20-093 Lublin, Poland
| | | |
Collapse
|
15
|
Lewis ED, Ortega EF, Dao MC, Barger K, Mason JB, Leong JM, Osburne MS, Magoun L, Nepveux V FJ, Chishti AH, Schwake C, Quynh A, Gilhooly CH, Petty G, Guo W, Matuszek G, Pereira D, Reddy M, Wang J, Wu D, Meydani SN, Combs GF. Safe and effective delivery of supplemental iron to healthy adults: a two-phase, randomized, double-blind trial - the safe iron study. Front Nutr 2023; 10:1230061. [PMID: 37899826 PMCID: PMC10603204 DOI: 10.3389/fnut.2023.1230061] [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: 05/27/2023] [Accepted: 08/28/2023] [Indexed: 10/31/2023] Open
Abstract
Introduction The safety of novel forms of iron in healthy, iron-replete adults as might occur if used in population-based iron supplementation programs was examined. We tested the hypotheses that supplementation with nanoparticulate iron hydroxide adipate tartrate (IHAT), an iron-enriched Aspergillus oryzae product (ASP), or ferrous sulphate heptahydrate (FS) are safe as indicated by erythrocyte susceptibility to malarial infection, bacterial proliferation, and gut inflammation. Responses to FS administered daily or weekly, and with or without other micronutrients were compared. Methods Two phases of randomized, double-blinded trials were conducted in Boston, MA. Phase I randomized 160 volunteers to six treatments: placebo, IHAT, ASP, FS, and FS plus a micronutrient powder (MNP) administrated daily at 60 mg Fe/day; and FS administered as a single weekly dose of 420 mg Fe. Phase II randomized 86 volunteers to IHAT, ASP, or FS administered at 120 mg Fe/day. Completing these phases were 151 and 77 participants, respectively. The study was powered to detect effects on primary endpoints: susceptibility of participant erythrocytes to infection by Plasmodium falciparum, the proliferation potential of selected pathogenic bacteria in sera, and markers of gut inflammation. Secondary endpoints for which the study was not powered included indicators of iron status and gastrointestinal symptoms. Results Supplementation with any form of iron did not affect any primary endpoint. In Phase I, the frequency of gastrointestinal symptoms associated with FS was unaffected by dosing with MNP or weekly administration; but participants taking IHAT more frequently reported abdominal pain (27%, p < 0.008) and nausea (4%, p = 0.009) than those taking FS, while those taking ASP more frequently reported nausea (8%, p = 0.009). Surprisingly, only 9% of participants taking IHAT at 120 mg Fe/day (Phase II) reported abdominal pain and no other group reported that symptom. Discussion With respect to the primary endpoints, few differences were found when comparing these forms of iron, indicating that 28 days of 60 or 120 mg/day of IHAT, ASP, or FS may be safe for healthy, iron-replete adults. With respect to other endpoints, subjects receiving IHAT more frequently reported abdominal pain and nausea, suggesting the need for further study. Clinical Trial Registration ClinicalTrials.gov, NCT03212677; registered: 11 July 2017.
Collapse
Affiliation(s)
- Erin D. Lewis
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Edwin F. Ortega
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Maria Carlota Dao
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Kathryn Barger
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Joel B. Mason
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - John M. Leong
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Marcia S. Osburne
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Loranne Magoun
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Felix J. Nepveux V
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA, United States
| | - Athar H. Chishti
- Department of Developmental, Molecular and Chemical Biology, Tufts University, Boston, MA, United States
| | - Christopher Schwake
- Department of Developmental, Molecular and Chemical Biology, Tufts University, Boston, MA, United States
| | - Anh Quynh
- Department of Developmental, Molecular and Chemical Biology, Tufts University, Boston, MA, United States
| | - Cheryl H. Gilhooly
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Gayle Petty
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Weimin Guo
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Gregory Matuszek
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Dora Pereira
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Manju Reddy
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
| | - Jifan Wang
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Dayong Wu
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Simin N. Meydani
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Gerald F. Combs
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| |
Collapse
|
16
|
Mishra SP, Wang B, Jain S, Ding J, Rejeski J, Furdui CM, Kitzman DW, Taraphder S, Brechot C, Kumar A, Yadav H. A mechanism by which gut microbiota elevates permeability and inflammation in obese/diabetic mice and human gut. Gut 2023; 72:1848-1865. [PMID: 36948576 PMCID: PMC10512000 DOI: 10.1136/gutjnl-2022-327365] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 03/02/2023] [Indexed: 03/24/2023]
Abstract
OBJECTIVE Ample evidence exists for the role of abnormal gut microbiota composition and increased gut permeability ('leaky gut') in chronic inflammation that commonly co-occurs in the gut in both obesity and diabetes, yet the detailed mechanisms involved in this process have remained elusive. DESIGN In this study, we substantiate the causal role of the gut microbiota by use of faecal conditioned media along with faecal microbiota transplantation. Using untargeted and comprehensive approaches, we discovered the mechanism by which the obese microbiota instigates gut permeability, inflammation and abnormalities in glucose metabolism. RESULTS We demonstrated that the reduced capacity of the microbiota from both obese mice and humans to metabolise ethanolamine results in ethanolamine accumulation in the gut, accounting for induction of intestinal permeability. Elevated ethanolamine increased the expression of microRNA-miR-101a-3p by enhancing ARID3a binding on the miR promoter. Increased miR-101a-3p decreased the stability of zona occludens-1 (Zo1) mRNA, which in turn, weakened intestinal barriers and induced gut permeability, inflammation and abnormalities in glucose metabolism. Importantly, restoring ethanolamine-metabolising activity in gut microbiota using a novel probiotic therapy reduced elevated gut permeability, inflammation and abnormalities in glucose metabolism by correcting the ARID3a/miR-101a/Zo1 axis. CONCLUSION Overall, we discovered that the reduced capacity of obese microbiota to metabolise ethanolamine instigates gut permeability, inflammation and glucose metabolic dysfunctions, and restoring ethanolamine-metabolising capacity by a novel probiotic therapy reverses these abnormalities. TRIAL REGISTRATION NUMBER NCT02869659 and NCT03269032.
Collapse
Affiliation(s)
- Sidharth P Mishra
- Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida, USA
- USF Center for Microbiome Research, Microbiomes Institutes, University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Bo Wang
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida, USA
| | - Shalini Jain
- Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida, USA
- USF Center for Microbiome Research, Microbiomes Institutes, University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Jingzhong Ding
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Jared Rejeski
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Cristina M Furdui
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Dalane W Kitzman
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Subhash Taraphder
- Department of Animal Genetics and Breeding, West Bengal University of Animal & Fishery Sciences, Kolkata, West Bengal, India
| | - Christian Brechot
- Deparment of Internal Medicine, University of South Florida College of Medicine, Tampa, Florida, USA
| | - Ambuj Kumar
- Deparment of Internal Medicine, University of South Florida College of Medicine, Tampa, Florida, USA
| | - Hariom Yadav
- Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida, USA
- USF Center for Microbiome Research, Microbiomes Institutes, University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| |
Collapse
|
17
|
Dong G, Boothe K, He L, Shi Y, McCluskey LP. Altered peripheral taste function in a mouse model of inflammatory bowel disease. Res Sq 2023:rs.3.rs-3304297. [PMID: 37720020 PMCID: PMC10503843 DOI: 10.21203/rs.3.rs-3304297/v1] [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] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Increased sugar intake and taste dysfunction have been reported in patients with inflammatory bowel disease (IBD), a chronic disorder characterized by diarrhea, pain, weight loss and fatigue. It was previously unknown whether taste function changes in mouse models of IBD. Mice consumed dextran sodium sulfate (DSS) during three 7-day cycles to induce chronic colitis. DSS-treated mice displayed signs of disease, including significant weight loss, diarrhea, loss of colon architecture, and inflammation of the colon. After the last DSS cycle we assessed taste function by recording electrophysiological responses from the chorda tympani (CT) nerve, which transmits activity from lingual taste buds to the brain. DSS treatment significantly reduced neural taste responses to natural and artificial sweeteners. Responses to carbohydrate, salt, sour or bitter tastants were unaffected in mice with colitis, but umami responses were modestly elevated. DSS treatment modulated the expression of receptor subunits that transduce sweet and umami stimuli in oral taste buds as a substrate for functional changes. Dysregulated systemic cytokine responses, or dysbiosis that occurs during chronic colitis may be upstream from changes in oral taste buds. We demonstrate for the first time that colitis alters taste input to the brain, which could exacerbate malnutrition in IBD patients.
Collapse
|
18
|
Kelly C, Jawahar J, Davey L, Everitt JI, Galanko JA, Anderson C, Avendano JE, McCann JR, Sartor RB, Valdivia RH, Rawls JF. Spontaneous episodic inflammation in the intestines of mice lacking HNF4A is driven by microbiota and associated with early life microbiota alterations. mBio 2023; 14:e0150423. [PMID: 37526424 PMCID: PMC10470520 DOI: 10.1128/mbio.01504-23] [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: 06/15/2023] [Accepted: 06/22/2023] [Indexed: 08/02/2023] Open
Abstract
The inflammatory bowel diseases (IBD) occur in genetically susceptible individuals who mount inappropriate immune responses to their microbiota leading to chronic intestinal inflammation. Whereas IBD clinical presentation is well described, how interactions between microbiota and host genotype impact early subclinical stages of the disease remains unclear. The transcription factor hepatocyte nuclear factor 4 alpha (HNF4A) has been associated with human IBD, and deletion of Hnf4a in intestinal epithelial cells (IECs) in mice (Hnf4aΔIEC) leads to spontaneous colonic inflammation by 6-12 mo of age. Here, we tested if pathology in Hnf4aΔIEC mice begins earlier in life and if microbiota contribute to that process. Longitudinal analysis revealed that Hnf4aΔIEC mice reared in specific pathogen-free (SPF) conditions develop episodic elevated fecal lipocalin 2 (Lcn2) and loose stools beginning by 4-5 wk of age. Lifetime cumulative Lcn2 levels correlated with histopathological features of colitis at 12 mo. Antibiotic and gnotobiotic tests showed that these phenotypes in Hnf4aΔIEC mice were dependent on microbiota. Fecal 16S rRNA gene sequencing in SPF Hnf4aΔIEC and control mice disclosed that genotype significantly contributed to differences in microbiota composition by 12 mo, and longitudinal analysis of the Hnf4aΔIEC mice with the highest lifetime cumulative Lcn2 revealed that microbial community differences emerged early in life when elevated fecal Lcn2 was first detected. These microbiota differences included enrichment of a novel phylogroup of Akkermansia muciniphila in Hnf4aΔIEC mice. We conclude that HNF4A functions in IEC to shape composition of the gut microbiota and protect against episodic inflammation induced by microbiota throughout the lifespan. IMPORTANCE The inflammatory bowel diseases (IBD), characterized by chronic inflammation of the intestine, affect millions of people around the world. Although significant advances have been made in the clinical management of IBD, the early subclinical stages of IBD are not well defined and are difficult to study in humans. This work explores the subclinical stages of disease in mice lacking the IBD-associated transcription factor HNF4A in the intestinal epithelium. Whereas these mice do not develop overt disease until late in adulthood, we find that they display episodic intestinal inflammation, loose stools, and microbiota changes beginning in very early life stages. Using germ-free and antibiotic-treatment experiments, we reveal that intestinal inflammation in these mice was dependent on the presence of microbiota. These results suggest that interactions between host genotype and microbiota can drive early subclinical pathologies that precede the overt onset of IBD and describe a mouse model to explore those important processes.
Collapse
Affiliation(s)
- Cecelia Kelly
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, North Carolina, USA
| | - Jayanth Jawahar
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, North Carolina, USA
| | - Lauren Davey
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, North Carolina, USA
- Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Jeffrey I. Everitt
- Department of Pathology, Research Animal Pathology Core, Duke University School of Medicine, Durham, North Carolina, USA
| | - Joseph A. Galanko
- Department of Medicine, Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Chelsea Anderson
- Department of Medicine, Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jonathan E. Avendano
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, North Carolina, USA
| | - Jessica R. McCann
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, North Carolina, USA
| | - R. Balfour Sartor
- Department of Medicine, Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Raphael H. Valdivia
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, North Carolina, USA
- Department of Immunology, Duke University School of Medicine, Durham, North Carolina, USA
| | - John F. Rawls
- Department of Molecular Genetics and Microbiology, Duke Microbiome Center, Duke University School of Medicine, Durham, North Carolina, USA
| |
Collapse
|
19
|
Lucia CMD, Oliveira LA, Dias KA, Pereira SMS, da Conceição AR, Babu PVA. Scientific Evidence for the Beneficial Effects of Dietary Blueberries on Gut Health: A Systematic Review. Mol Nutr Food Res 2023; 67:e2300096. [PMID: 37428472 PMCID: PMC10538750 DOI: 10.1002/mnfr.202300096] [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: 02/18/2023] [Revised: 06/10/2023] [Indexed: 07/11/2023]
Abstract
Emerging evidence indicates the association between an unhealthy gut and chronic diseases. A healthy gut comprises an intact gut epithelium and balanced gut microbes. Diet is one of the critical factors that modulate gut health by positively or negatively affecting the intestinal barrier and gut microbes. Blueberries are an excellent source of health-promoting bioactive components, and this systematic review is conducted to evaluate the effect of dietary blueberries on gut health. A literature search is conducted on PubMed/MEDLINE, Scopus, Web of Science, and Embase databases to review relevant studies published between 2011 and 2022 according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The Systematic Review Center for Laboratory Animal Experimentation Risk of Bias (SYRCLE-RoB) tool is used for methodological quality assessments. Sixteen studies included from four countries are reviewed and the results are synthesized narratively. This data analysis indicates that blueberry supplementation improves gut health by improving intestinal morphology, reducing gut permeability, suppressing oxidative stress, ameliorating gut inflammation, and modulating the composition and function of gut microbes. However, there are significant knowledge gaps in this field. These findings indicate that further studies are needed to establish the beneficial effects of blueberries on gut health.
Collapse
Affiliation(s)
- Ceres Mattos Della Lucia
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, Utah 84112, USA
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Livya Alves Oliveira
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Kelly Aparecida Dias
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | | | | | - Pon Velayutham Anandh Babu
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, Utah 84112, USA
| |
Collapse
|
20
|
Wang H, Shan CL, Gao B, Xiao JL, Shen J, Zhao JG, Han DM, Chen BX, Wang S, Liu G, Xin AG, Lv LB, Xiao P, Gao H. Yersiniabactin-Producing E. coli Induces the Pyroptosis of Intestinal Epithelial Cells via the NLRP3 Pathway and Promotes Gut Inflammation. Int J Mol Sci 2023; 24:11451. [PMID: 37511208 PMCID: PMC10380849 DOI: 10.3390/ijms241411451] [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: 05/30/2023] [Revised: 07/02/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
The high-pathogenicity island (HPI) was initially identified in Yersinia and can be horizontally transferred to Escherichia coli to produce yersiniabactin (Ybt), which enhances the pathogenicity of E. coli by competing with the host for Fe3+. Pyroptosis is gasdermin-induced necrotic cell death. It involves the permeabilization of the cell membrane and is accompanied by an inflammatory response. It is still unclear whether Ybt HPI can cause intestinal epithelial cells to undergo pyroptosis and contribute to gut inflammation during E. coli infection. In this study, we infected intestinal epithelial cells of mice with E. coli ZB-1 and the Ybt-deficient strain ZB-1Δirp2. Our findings demonstrate that Ybt-producing E. coli is more toxic and exacerbates gut inflammation during systemic infection. Mechanistically, our results suggest the involvement of the NLRP3/caspase-1/GSDMD pathway in E. coli infection. Ybt promotes the assembly and activation of the NLRP3 inflammasome, leading to GSDMD cleavage into GSDMD-N and promoting the pyroptosis of intestinal epithelial cells, ultimately aggravating gut inflammation. Notably, NLRP3 knockdown alleviated these phenomena, and the binding of free Ybt to NLRP3 may be the trigger. Overall, our results show that Ybt HPI enhances the pathogenicity of E. coli and induces pyroptosis via the NLRP3 pathway, which is a new mechanism through which E. coli promotes gut inflammation. Furthermore, we screened drugs targeting NLRP3 from an existing drug library, providing a list of potential drug candidates for the treatment of gut injury caused by E. coli.
Collapse
Affiliation(s)
- Hao Wang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (H.W.); (B.G.)
| | - Chun-Lang Shan
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (C.-L.S.); (J.-G.Z.)
| | - Bin Gao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (H.W.); (B.G.)
| | - Jin-Long Xiao
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| | - Jue Shen
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| | - Jin-Gang Zhao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (C.-L.S.); (J.-G.Z.)
| | - Dong-Mei Han
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| | - Bin-Xun Chen
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| | - Shuai Wang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| | - Gen Liu
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| | - Ai-Guo Xin
- National Foot-and-Mouth Disease Para-Reference Laboratory (Kunming), Yunnan Animal Science and Veterinary Institute, Kunming 650224, China;
| | - Long-Bao Lv
- National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650107, China;
| | - Peng Xiao
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| | - Hong Gao
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China; (J.-L.X.); (J.S.); (D.-M.H.); (B.-X.C.); (S.W.); (G.L.)
| |
Collapse
|
21
|
Coutry N, Nguyen J, Soualhi S, Gerbe F, Meslier V, Dardalhon V, Almeida M, Quinquis B, Thirion F, Herbert F, Gasmi I, Lamrani A, Giordano A, Cesses P, Garnier L, Thirard S, Greuet D, Cazevieille C, Bernex F, Bressuire C, Winton D, Matsumoto I, Blottière HM, Taylor N, Jay P. Cross talk between Paneth and tuft cells drives dysbiosis and inflammation in the gut mucosa. Proc Natl Acad Sci U S A 2023; 120:e2219431120. [PMID: 37307458 DOI: 10.1073/pnas.2219431120] [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: 11/17/2022] [Accepted: 05/01/2023] [Indexed: 06/14/2023] Open
Abstract
Gut microbiota imbalance (dysbiosis) is increasingly associated with pathological conditions, both within and outside the gastrointestinal tract. Intestinal Paneth cells are considered to be guardians of the gut microbiota, but the events linking Paneth cell dysfunction with dysbiosis remain unclear. We report a three-step mechanism for dysbiosis initiation. Initial alterations in Paneth cells, as frequently observed in obese and inflammatorybowel diseases patients, cause a mild remodeling of microbiota, with amplification of succinate-producing species. SucnR1-dependent activation of epithelial tuft cells triggers a type 2 immune response that, in turn, aggravates the Paneth cell defaults, promoting dysbiosis and chronic inflammation. We thus reveal a function of tuft cells in promoting dysbiosis following Paneth cell deficiency and an unappreciated essential role of Paneth cells in maintaining a balanced microbiota to prevent inappropriate activation of tuft cells and deleterious dysbiosis. This succinate-tuft cell inflammation circuit may also contribute to the chronic dysbiosis observed in patients.
Collapse
Affiliation(s)
- Nathalie Coutry
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Julie Nguyen
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Salima Soualhi
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - François Gerbe
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Victoria Meslier
- Paris-Saclay University, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), MetaGenoPolis, 78350, Jouy-en-Josas, France
| | - Valérie Dardalhon
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, CNRS, 34000 Montpellier, France
| | - Mathieu Almeida
- Paris-Saclay University, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), MetaGenoPolis, 78350, Jouy-en-Josas, France
| | - Benoit Quinquis
- Paris-Saclay University, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), MetaGenoPolis, 78350, Jouy-en-Josas, France
| | - Florence Thirion
- Paris-Saclay University, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), MetaGenoPolis, 78350, Jouy-en-Josas, France
| | - Fabien Herbert
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Imène Gasmi
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Ali Lamrani
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Alicia Giordano
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Pierre Cesses
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Laure Garnier
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Steeve Thirard
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Denis Greuet
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| | - Chantal Cazevieille
- Institut des Neurosciences de Montpellier, University of Montpellier, 34000 Montpellier, France
| | - Florence Bernex
- Réseau d'Histologie Expérimentale de Montpellier, University of Montpellier, BioCampus, CNRS, INSERM, 34000 Montpellier, France
| | - Christelle Bressuire
- Paris-Saclay University, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), MetaGenoPolis, 78350, Jouy-en-Josas, France
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute 78350, Jouy-en-Josas, France
| | - Douglas Winton
- Cancer Research-UK Cambridge Institute, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, United Kingdom
| | | | - Hervé M Blottière
- Paris-Saclay University, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), MetaGenoPolis, 78350, Jouy-en-Josas, France
- Nantes Université, INRAE, UR1280, PhAN, F-44000, Nantes, France
| | - Naomi Taylor
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, CNRS, 34000 Montpellier, France
- Pediatric Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20814
| | - Philippe Jay
- Institute of Functional Genomics, University of Montpellier, CNRS, Inserm, Equipe Labellisée Ligue contre le Cancer, 34000 Montpellier, France
| |
Collapse
|
22
|
Costa EM, Silva S, Pereira CF, Ribeiro AB, Casanova F, Freixo R, Pintado M, Ramos ÓL. Carboxymethyl Cellulose as a Food Emulsifier: Are Its Days Numbered? Polymers (Basel) 2023; 15:polym15102408. [PMID: 37242982 DOI: 10.3390/polym15102408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023] Open
Abstract
Carboxymethyl cellulose use in industry is ubiquitous. Though it is recognized as safe by the EFSA and FDA, newer works have raised concerns related to its safety, as in vivo studies showed evidence of gut dysbiosis associated with CMC's presence. Herein lies the question, is CMC a gut pro-inflammatory compound? As no work addressed this question, we sought to understand whether CMC was pro-inflammatory through the immunomodulation of GI tract epithelial cells. The results showed that while CMC was not cytotoxic up to 25 mg/mL towards Caco-2, HT29-MTX and Hep G2 cells, it had an overall pro-inflammatory behavior. In a Caco-2 monolayer, CMC by itself increased IL-6, IL-8 and TNF-α secretion, with the latter increasing by 1924%, and with these increases being 9.7 times superior to the one obtained for the IL-1β pro-inflammation control. In co-culture models, an increase in secretion in the apical side, particularly for IL-6 (692% increase), was observed, and when RAW 264.7 was added, data showed a more complex scenario as stimulation of pro-inflammatory (IL-6, MCP-1 and TNF-α) and anti-inflammatory (IL-10 and IFN-β) cytokines in the basal side was observed. Considering these results, CMC may exert a pro-inflammatory effect in the intestinal lumen, and despite more studies being required, the incorporation of CMC in foodstuffs must be carefully considered in the future to minimize potential GI tract dysbiosis.
Collapse
Affiliation(s)
- Eduardo M Costa
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Sara Silva
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Carla F Pereira
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Alessandra B Ribeiro
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Francisca Casanova
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Ricardo Freixo
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Manuela Pintado
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Óscar L Ramos
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| |
Collapse
|
23
|
Zou R, Shen G, Wu Y, Guo M, Chen J, Yang S, Zhao H, Zheng H. Akkermansia muciniphila plays a neuroprotective role in HMC3 cells through the 'gut-brain' axis. Future Microbiol 2023; 18:255-266. [PMID: 37013905 DOI: 10.2217/fmb-2022-0007] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Aims: We investigated the neuroprotective effects of Akkermansia muciniphila through the 'gut-brain' axis. Methods: Human colon cancer (Caco-2) cells treated with A. muciniphila metabolites were used to create the conditioned medium from Caco-2 cells treated with A. muciniphila metabolites (AC medium) medium, then treated human microglial clone 3 (HMC3) cells to simulate the gut-brain axis in vitro. Bioinformatics analyses were performed to investigate the molecular mechanisms by which the AC medium affected HMC3 cells. Results: The secretion of inflammatory cytokines IL-6 (0.37 ± 0.80-fold) and IL-17A (0.05 ± 0.18-fold) by HMC3 cells was inhibited by the AC medium. Differentially expressed genes were mainly enriched in immune-related signaling pathways, such as the cAMP and TGF-β signaling pathways. Conclusion: A. muciniphila might be a source of therapeutic approaches to alleviate microglia-mediated neuroinflammatory diseases.
Collapse
Affiliation(s)
- Rong Zou
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical & Pharmaceutical Technologies), Fudan University, Shanghai, 200032, China
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Centre for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Guohong Shen
- Department of Pediatrics, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250013, China
| | - Yixiao Wu
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical & Pharmaceutical Technologies), Fudan University, Shanghai, 200032, China
| | - Min Guo
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical & Pharmaceutical Technologies), Fudan University, Shanghai, 200032, China
| | - Jun Chen
- CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Sheng Yang
- CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Hongyang Zhao
- Department of Pediatrics, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250013, China
| | - Huajun Zheng
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical & Pharmaceutical Technologies), Fudan University, Shanghai, 200032, China
| |
Collapse
|
24
|
Chew M, Schulberg JD, Bhathal P, Sutherland TR, Garg M. An unusual cause of colonic ulceration. Gut 2023; 72:420-483. [PMID: 35046089 DOI: 10.1136/gutjnl-2021-326296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/29/2021] [Indexed: 12/08/2022]
Affiliation(s)
- Melissa Chew
- Department of Gastroenterology, Northern Hospital Epping, Epping, Victoria, Australia
| | - Julien Dion Schulberg
- Department of Gastroenterology, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia.,Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Prithi Bhathal
- Department of Clinical Pathology, University of Melbourne, Melbourne, Victoria, Australia
| | - Tom R Sutherland
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia.,Department of Radiology, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Mayur Garg
- Department of Gastroenterology, Northern Hospital Epping, Epping, Victoria, Australia.,Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
25
|
Doggui R, McCormick BJ, Caulfield LE, Schulze KJ, Murray-Kolb LE. Adequacy of Iodine Status and Associations with Gut Health: A Prospective Cohort Study among Infants in 8 Low- and Middle-Income Countries. J Nutr 2023; 153:828-838. [PMID: 36797135 DOI: 10.1016/j.tjnut.2022.11.027] [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: 06/18/2022] [Revised: 10/25/2022] [Accepted: 11/15/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Environmental enteric dysfunction increases the likelihood of micronutrient deficiencies among infants, but few studies have assessed the potential impact of gut health on urinary iodine concentration (UIC) among this vulnerable group. OBJECTIVES We describe the trends of iodine status among infants from 6 to 24 mo old and examine the associations between intestinal permeability, inflammation, and UIC from 6 to 15 mo of age. METHODS Data from 1557 children enrolled in this birth cohort study conducted in 8 sites were included in these analyses. UIC was measured at 6, 15, and 24 mo of age by using the Sandell-Kolthoff technique. Gut inflammation and permeability were assessed using the concentrations of fecal neopterin (NEO), myeloperoxidase (MPO) and alpha-1-antitrypsin (AAT), and lactulose-mannitol ratio (LM). A multinomial regression analysis was used to assess the classified UIC (deficiency or excess). Linear mixed regression was used to test the effect of interactions among biomarkers on logUIC. RESULTS All studied populations had adequate (≥100 μg/L) to excess (≥371 μg/L) median UIC at 6 mo. Between 6 and 24 mo, 5 sites displayed a significant decline in the infant's median UIC. However, median UIC remained within the optimal range. An increase of NEO and MPO concentrations by +1 unit in ln scale reduced the risk of low UIC by 0.87 (95% CI: 0.78-0.97) and 0.86 (95% CI: 0.77-0.95), respectively. AAT moderated the association between NEO and UIC (P < 0.0001). The shape of this association appears to be asymmetric and in a reverse J-shape, with a higher UIC observed at both lower NEO and AAT concentrations. CONCLUSIONS Excess UIC was frequent at 6 mo and tended to normalize at 24 mo. Aspects of gut inflammation and increased permeability appear to reduce the prevalence of low UIC in children aged 6 to 15 mo. Programs addressing iodine-related health should consider the role of gut permeability in vulnerable individuals.
Collapse
Affiliation(s)
- Radhouene Doggui
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA.
| | | | - Laura E Caulfield
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Kerry J Schulze
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Laura E Murray-Kolb
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA; Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | | |
Collapse
|
26
|
Rankin LC, Kaiser KA, de Los Santos-Alexis K, Park H, Uhlemann AC, Gray DHD, Arpaia N. Dietary tryptophan deficiency promotes gut RORγt + Treg cells at the expense of Gata3 + Treg cells and alters commensal microbiota metabolism. Cell Rep 2023; 42:112135. [PMID: 36840944 PMCID: PMC10150404 DOI: 10.1016/j.celrep.2023.112135] [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: 02/25/2022] [Revised: 11/30/2022] [Accepted: 02/01/2023] [Indexed: 02/26/2023] Open
Abstract
Micronutrient deficiency is a major cause of disease throughout the world. Yet, how perturbations influence the immune-microbiome interface remains poorly understood. Here, we report that loss of dietary tryptophan (Trp) reshapes intestinal microbial communities, including the depletion of probiotic L. reuteri, drives transcriptional changes to immune response genes in the intestinal ileum, and reshapes the regulatory T cell (Treg) compartment. Dietary Trp deficiency promotes expansion of RORγt+ Treg cells and the loss of Gata3+ Tregs in a microbiota-dependent manner. In the absence of dietary Trp, provision of the AhR ligand indole-3-carbinol is sufficient to restore the Treg compartment. Together, these data show that dietary Trp deficiency perturbs the interaction between the host and its bacterial symbionts to regulate Treg homeostasis via the deprivation of bacterially derived Trp metabolites. Our findings highlight an essential role for immune-microbiome crosstalk as a key homeostatic regulator during nutrient deficiency.
Collapse
Affiliation(s)
- Lucille C Rankin
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, 701 West 168th Street, HHSC 910C, New York, NY, USA; Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Katherine A Kaiser
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, 701 West 168th Street, HHSC 910C, New York, NY, USA
| | - Kenia de Los Santos-Alexis
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, 701 West 168th Street, HHSC 910C, New York, NY, USA
| | - Heekuk Park
- Microbiome & Pathogen Genomics Core, Columbia University Irving Medical Center, New York, NY, USA
| | - Anne-Catrin Uhlemann
- Microbiome & Pathogen Genomics Core, Columbia University Irving Medical Center, New York, NY, USA; Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Daniel H D Gray
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Nicholas Arpaia
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, 701 West 168th Street, HHSC 910C, New York, NY, USA.
| |
Collapse
|
27
|
Yun SW, Park HS, Shin YJ, Ma X, Han MJ, Kim DH. Lactobacillus gasseri NK109 and Its Supplement Alleviate Cognitive Impairment in Mice by Modulating NF-κB Activation, BDNF Expression, and Gut Microbiota Composition. Nutrients 2023; 15:nu15030790. [PMID: 36771498 PMCID: PMC9921112 DOI: 10.3390/nu15030790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/24/2023] [Accepted: 01/29/2023] [Indexed: 02/09/2023] Open
Abstract
Aging-related gut microbiota dysbiosis initiates gut inflammation and microbiota dysbiosis, which induce the occurrence of psychiatric disorders including dementia. The alleviation of gut microbiota dysbiosis by probiotics is suggested to be able to alleviate psychiatric disorders including cognitive impairment (CI). Therefore, to understand how probiotics could alleviate CI, we examined the effects of anti-inflammatory Lactobacillus gasseri NK109 and its supplement (NS, mixture of NK109 and soybean embryo ethanol extract) on cognitive function in aged (Ag), 5XFAD transgenic (Tg), or mildly cognition-impaired adult fecal microbiota (MCF)-transplanted mice. Oral administration of NK109 or NS decreased CI-like behaviors in Ag mice. Their treatments suppressed TNF-α and p16 expression and NF-κB-activated cell populations in the hippocampus and colon, while BDNF expression was induced. Moreover, they partially shifted the β-diversity of gut microbiota in Ag mice to those of young mice: they decreased Bifidobacteriaceae, Lactobacillaceae, and Helicobacteriaceae populations and increased Rikenellaceae and Prevotellaceae populations. Oral administration of NK109 or NS also reduced CI-like behaviors in Tg mice. Their treatments induced BDNF expression in the hippocampus, decreased hippocampal TNF-α and Aβ expression and hippocampal and colonic NF-κB-activated cell populations. NK109 and NS partially shifted the β-diversity of gut microbiota in Tg mice: they decreased Muribaculaceae and Rhodospiraceae populations and increased Helicobacteriaceae population. Oral administration of NK109 or NS decreased MCF transplantation-induced CI-like behaviors in mice. NK109 and NS increased hippocampal BDNF expression, while hippocampal and colonic TNF-α expression and NF-κB-activated cell populations decreased. These findings suggest that dementia can fluctuate the gut microbiota composition and NK109 and its supplement NS can alleviate CI with systemic inflammation by inducing BDNF expression and suppressing NF-κB activation and gut microbiota dysbiosis.
Collapse
Affiliation(s)
- Soo-Won Yun
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hee-Seo Park
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Yoon-Jung Shin
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Xiaoyang Ma
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Myung Joo Han
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea
- Correspondence: (M.J.H.); (D.-H.K.); Tel.: +82-2-961-0553 (M.J.H.); +82-2-961-0374 (D.-H.K.)
| | - Dong-Hyun Kim
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
- Correspondence: (M.J.H.); (D.-H.K.); Tel.: +82-2-961-0553 (M.J.H.); +82-2-961-0374 (D.-H.K.)
| |
Collapse
|
28
|
De Craemer AS, Witte T, Lobaton Ortega T, Hoorens A, De Vos M, Cuvelier C, Vastert SJ, Baraliakos X, Van den Bosch F, Elewaut D. Anti-CD74 IgA antibodies show diagnostic potential for axial spondyloarthritis but are not associated with microscopic gut inflammation. Rheumatology (Oxford) 2023; 62:984-990. [PMID: 35781486 DOI: 10.1093/rheumatology/keac384] [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: 02/10/2022] [Revised: 06/25/2022] [Accepted: 06/25/2022] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVES Gut inflammation commonly occurs in axial SpA (axSpA), and is linked to disease activity and outcome. Given the role of IgA in mucosal immunity, we explored the association between anti-CD74 IgA antibodies, gut inflammation and axSpA. METHODS Anti-CD74 IgA was measured by ELISA in serum samples of axSpA patients, fulfilling the 2009 Assessment of SpondyloArthritis international Society classification criteria. A group of fibromyalgia (FM) and RA patients served as non-inflammatory and inflammatory controls. Newly diagnosed axSpA patients underwent ileocolonoscopy; mucosal biopsies were histopathologically assessed as normal, acute or chronically inflamed. Optimal anti-CD74 IgA cut-off values were determined with a receiver operating characteristics curve. RESULTS axSpA patients (n = 281) showed higher anti-CD74 IgA levels [mean (s.d.) 18.8 (12.4) U/ml] compared with 100 FM patients [10.9 (5.0) U/ml, P < 0.001] and 34 RA patients [13.7 (9.6) U/ml, P = 0.02]. The area under the receiver operating characteristics curve for diagnosis (axSpA vs FM) was 0.70, providing a sensitivity of 60% and specificity of 87% (cut-off 15 U/ml). Antibody concentrations were not significantly different between axSpA patients with (n = 40) and without (n = 69) gut inflammation (P = 0.83), yielding an area under the receiver operating characteristics curve of 0.51. Anti-CD74 IgA levels were not associated with degree of bone marrow oedema on MRI of the sacroiliac joints, CRP or any other disease-specific feature such as the use of NSAIDs or biological treatment. CONCLUSION Serum anti-CD74 IgA is a potentially useful diagnostic biomarker for axSpA. However, antibody levels do not correlate with any phenotypical feature, including microscopic gut inflammation, suggesting this to be a disease-specific rather than an inflammatory marker.
Collapse
Affiliation(s)
- Ann-Sophie De Craemer
- Department of Internal Medicine and Pediatrics, Ghent University
- Department of Rheumatology, Ghent University Hospital, Ghent
- Center for Inflammation Research, Molecular Immunology and Inflammation Unit, VIB-UGent, Zwijnaarde, Belgium
| | - Torsten Witte
- Department of Rheumatology and Clinical Immunology, Medical School Hannover, Hannover, Germany
| | - Triana Lobaton Ortega
- Department of Internal Medicine and Pediatrics, Ghent University
- Department of Gastroenterology
| | - Anne Hoorens
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Martine De Vos
- Department of Internal Medicine and Pediatrics, Ghent University
- Department of Gastroenterology
| | - Claude Cuvelier
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Sebastiaan J Vastert
- Department of Pediatric Rheumatology and Immunology, Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | | | - Filip Van den Bosch
- Department of Internal Medicine and Pediatrics, Ghent University
- Department of Rheumatology, Ghent University Hospital, Ghent
- Center for Inflammation Research, Molecular Immunology and Inflammation Unit, VIB-UGent, Zwijnaarde, Belgium
| | - Dirk Elewaut
- Department of Internal Medicine and Pediatrics, Ghent University
- Department of Rheumatology, Ghent University Hospital, Ghent
- Center for Inflammation Research, Molecular Immunology and Inflammation Unit, VIB-UGent, Zwijnaarde, Belgium
| |
Collapse
|
29
|
Johnson KS, Yang C, Carter JE, Worthington AK, Robinson EK, Lopez-Magaña R, Salgado F, Arnold I, Ottemann KM. Helicobacter pylori Chronic-Stage Inflammation Undergoes Fluctuations That Are Altered in tlpA Mutants. Infect Immun 2023; 91:e0032222. [PMID: 36533917 DOI: 10.1128/iai.00322-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Helicobacter pylori colonizes half of the world's population and is responsible for a significant disease burden by causing gastritis, peptic ulcers, and gastric cancer. The development of host inflammation drives these diseases, but there are still open questions in the field about how H. pylori controls this process. We characterized H. pylori inflammation using an 8-month mouse infection time course and comparison of the wild type (WT) and a previously identified mutant lacking the TlpA chemoreceptor that causes elevated inflammation. Our work shows that H. pylori chronic-stage corpus inflammation undergoes surprising fluctuations, with changes in Th17 and eosinophil numbers. The H. pylori tlpA mutant changed the inflammation temporal characteristics, resulting in different inflammation from the wild type at some time points. tlpA mutants have equivalent total and gland colonization in late-stage infections. During early infection, in contrast, they show elevated gland and total colonization compared to those by WT. Our results suggest the chronic inflammation setting is dynamic and may be influenced by colonization properties of early infection.
Collapse
|
30
|
Singh V, Lee G, Son H, Koh H, Kim ES, Unno T, Shin JH. Butyrate producers, "The Sentinel of Gut": Their intestinal significance with and beyond butyrate, and prospective use as microbial therapeutics. Front Microbiol 2023; 13:1103836. [PMID: 36713166 PMCID: PMC9877435 DOI: 10.3389/fmicb.2022.1103836] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [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: 11/21/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023] Open
Abstract
Gut-microbial butyrate is a short-chain fatty acid (SCFA) of significant physiological importance than the other major SCFAs (acetate and propionate). Most butyrate producers belong to the Clostridium cluster of the phylum Firmicutes, such as Faecalibacterium, Roseburia, Eubacterium, Anaerostipes, Coprococcus, Subdoligranulum, and Anaerobutyricum. They metabolize carbohydrates via the butyryl-CoA: acetate CoA-transferase pathway and butyrate kinase terminal enzymes to produce most of butyrate. Although, in minor fractions, amino acids can also be utilized to generate butyrate via glutamate and lysine pathways. Butyrogenic microbes play a vital role in various gut-associated metabolisms. Butyrate is used by colonocytes to generate energy, stabilizes hypoxia-inducible factor to maintain the anaerobic environment in the gut, maintains gut barrier integrity by regulating Claudin-1 and synaptopodin expression, limits pro-inflammatory cytokines (IL-6, IL-12), and inhibits oncogenic pathways (Akt/ERK, Wnt, and TGF-β signaling). Colonic butyrate producers shape the gut microbial community by secreting various anti-microbial substances, such as cathelicidins, reuterin, and β-defensin-1, and maintain gut homeostasis by releasing anti-inflammatory molecules, such as IgA, vitamin B, and microbial anti-inflammatory molecules. Additionally, butyrate producers, such as Roseburia, produce anti-carcinogenic metabolites, such as shikimic acid and a precursor of conjugated linoleic acid. In this review, we summarized the significance of butyrate, critically examined the role and relevance of butyrate producers, and contextualized their importance as microbial therapeutics.
Collapse
Affiliation(s)
- Vineet Singh
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - GyuDae Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - HyunWoo Son
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Hong Koh
- Department of Pediatrics, Severance Fecal Microbiota Transplantation Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Soo Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Tatsuya Unno
- Faculty of Biotechnology, School of Life Sciences, SARI, Jeju National University, Jeju, Republic of Korea,*Correspondence: Tatsuya Unno, ✉
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea,Department of Integrative Biotechnology, Kyungpook National University, Daegu, Republic of Korea,Jae-Ho Shin, ✉
| |
Collapse
|
31
|
Larke JA, Bacalzo N, Castillo JJ, Couture G, Chen Y, Xue Z, Alkan Z, Kable ME, Lebrilla CB, Stephensen CB, Lemay DG. Dietary Intake of Monosaccharides from Foods is Associated with Characteristics of the Gut Microbiota and Gastrointestinal Inflammation in Healthy US Adults. J Nutr 2023; 153:106-119. [PMID: 36913444 PMCID: PMC10196574 DOI: 10.1016/j.tjnut.2022.12.008] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/15/2022] [Accepted: 12/14/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Current assessment of dietary carbohydrates does not adequately reflect the nutritional properties and effects on gut microbial structure and function. Deeper characterization of food carbohydrate composition can serve to strengthen the link between diet and gastrointestinal health outcomes. OBJECTIVES The present study aims to characterize the monosaccharide composition of diets in a healthy US adult cohort and use these features to assess the relationship between monosaccharide intake, diet quality, characteristics of the gut microbiota, and gastrointestinal inflammation. METHODS This observational, cross-sectional study enrolled males and females across age (18-33 y, 34-49 y, and 50-65 y) and body mass index (normal, 18.5-24.99 kg/m2; overweight, 25-29.99 kg/m2; and obese, 30-44 kg/m2) categories. Recent dietary intake was assessed by the automated self-administered 24-h dietary recall system, and gut microbiota were assessed with shotgun metagenome sequencing. Dietary recalls were mapped to the Davis Food Glycopedia to estimate monosaccharide intake. Participants with >75% of carbohydrate intake mappable to the glycopedia were included (N = 180). RESULTS Diversity of monosaccharide intake was positively associated with the total Healthy Eating Index score (Pearson's r = 0.520, P = 1.2 × 10-13) and negatively associated with fecal neopterin (Pearson's r = -0.247, P = 3.0 × 10-3). Comparing high with low intake of specific monosaccharides revealed differentially abundant taxa (Wald test, P < 0.05), which was associated with the functional capacity to break down these monomers (Wilcoxon rank-sum test, P < 0.05). CONCLUSIONS Monosaccharide intake was associated with diet quality, gut microbial diversity, microbial metabolism, and gastrointestinal inflammation in healthy adults. As specific food sources were rich in particular monosaccharides, it may be possible in the future to tailor diets to fine-tune the gut microbiota and gastrointestinal function. This trial is registered at www. CLINICALTRIALS gov as NCT02367287.
Collapse
Affiliation(s)
- Jules A Larke
- USDA-ARS Western Human Nutrition Research Center, Davis, CA, USA
| | - Nikita Bacalzo
- Department of Chemistry, University of California, Davis, Davis, CA, USA
| | - Juan J Castillo
- Department of Chemistry, University of California, Davis, Davis, CA, USA
| | - Garret Couture
- Department of Chemistry, University of California, Davis, Davis, CA, USA
| | - Ye Chen
- Department of Chemistry, University of California, Davis, Davis, CA, USA
| | - Zhengyao Xue
- USDA-ARS Western Human Nutrition Research Center, Davis, CA, USA; Department of Food Science and Technology, University of California, Davis, Davis, CA, USA
| | - Zeynep Alkan
- USDA-ARS Western Human Nutrition Research Center, Davis, CA, USA
| | - Mary E Kable
- USDA-ARS Western Human Nutrition Research Center, Davis, CA, USA; Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Carlito B Lebrilla
- Department of Chemistry, University of California, Davis, Davis, CA, USA; Department of Food Science and Technology, University of California, Davis, Davis, CA, USA
| | - Charles B Stephensen
- USDA-ARS Western Human Nutrition Research Center, Davis, CA, USA; Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Danielle G Lemay
- USDA-ARS Western Human Nutrition Research Center, Davis, CA, USA; Department of Nutrition, University of California, Davis, Davis, CA, USA.
| |
Collapse
|
32
|
Esteves AR, Munoz-Pinto MF, Nunes-Costa D, Candeias E, Silva DF, Magalhães JD, Pereira-Santos AR, Ferreira IL, Alarico S, Tiago I, Empadinhas N, Cardoso SM. Footprints of a microbial toxin from the gut microbiome to mesencephalic mitochondria. Gut 2023; 72:73-89. [PMID: 34836918 PMCID: PMC9763194 DOI: 10.1136/gutjnl-2021-326023] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/28/2021] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Idiopathic Parkinson's disease (PD) is characterised by alpha-synuclein (aSyn) aggregation and death of dopaminergic neurons in the midbrain. Recent evidence posits that PD may initiate in the gut by microbes or their toxins that promote chronic gut inflammation that will ultimately impact the brain. In this work, we sought to demonstrate that the effects of the microbial toxin β-N-methylamino-L-alanine (BMAA) in the gut may trigger some PD cases, which is especially worrying as this toxin is present in certain foods but not routinely monitored by public health authorities. DESIGN To test the hypothesis, we treated wild-type mice, primary neuronal cultures, cell lines and isolated mitochondria with BMAA, and analysed its impact on gut microbiota composition, barrier permeability, inflammation and aSyn aggregation as well as in brain inflammation, dopaminergic neuronal loss and motor behaviour. To further examine the key role of mitochondria, we also determined the specific effects of BMAA on mitochondrial function and on inflammasome activation. RESULTS BMAA induced extensive depletion of segmented filamentous bacteria (SFB) that regulate gut immunity, thus triggering gut dysbiosis, immune cell migration, increased intestinal inflammation, loss of barrier integrity and caudo-rostral progression of aSyn. Additionally, BMAA induced in vitro and in vivo mitochondrial dysfunction with cardiolipin exposure and consequent activation of neuronal innate immunity. These events primed neuroinflammation, dopaminergic neuronal loss and motor deficits. CONCLUSION Taken together, our results demonstrate that chronic exposure to dietary BMAA can trigger a chain of events that recapitulate the evolution of the PD pathology from the gut to the brain, which is consistent with 'gut-first' PD.
Collapse
Affiliation(s)
- A Raquel Esteves
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,IIIUC-Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Mário F Munoz-Pinto
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,IIIUC-Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Daniela Nunes-Costa
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,PDBEB–Ph.D. Programme in Experimental Biology and Biomedicine, Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Emanuel Candeias
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,PDBEB–Ph.D. Programme in Experimental Biology and Biomedicine, Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Diana F Silva
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,IIIUC-Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - João D Magalhães
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,PDBEB–Ph.D. Programme in Experimental Biology and Biomedicine, Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - A Raquel Pereira-Santos
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,PDBEB–Ph.D. Programme in Experimental Biology and Biomedicine, Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - I Luisa Ferreira
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,IIIUC-Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Susana Alarico
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal,IIIUC-Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Igor Tiago
- CFE-Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Nuno Empadinhas
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal .,IIIUC-Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Sandra Morais Cardoso
- CNC-Center for Neuroscience and Cell Biology and CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal .,Institute of Cellular and Molecular Biology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| |
Collapse
|
33
|
Anbazhagan AN, Rawat M. Editorial: The role of MicroRNAs and other non-coding RNAs in gut inflammation and gastrointestinal cancers. Front Mol Biosci 2023; 10:1173690. [PMID: 37021110 PMCID: PMC10067858 DOI: 10.3389/fmolb.2023.1173690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/10/2023] [Indexed: 04/07/2023] Open
Affiliation(s)
- Arivarasu N. Anbazhagan
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- *Correspondence: Arivarasu N. Anbazhagan, ; Manmeet Rawat,
| | - Manmeet Rawat
- Division of Gastroenterology and Hepatology, Department of Medicine, The Penn State University College of Medicine, Hershey, PaA, United States
- *Correspondence: Arivarasu N. Anbazhagan, ; Manmeet Rawat,
| |
Collapse
|
34
|
Muthyala S, Chapkin RS, Wu C, Wu CS. Ghrelin Alleviates Experimental Ulcerative Colitis in Old Mice and Modulates Colonocyte Metabolism via PPARγ Pathway. Int J Mol Sci 2022; 24. [PMID: 36614012 DOI: 10.3390/ijms24010565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/24/2022] [Accepted: 12/26/2022] [Indexed: 12/30/2022] Open
Abstract
There is a growing prevalence of inflammatory bowel disease (IBD), a chronic inflammatory condition of the gastrointestinal tract, among the aging population. Ghrelin is a gut hormone that, in addition to controlling feeding and energy metabolism, has been shown to exert anti-inflammatory effects; however, the effect of ghrelin in protecting against colitis in old mice has not been assessed. Here, we subjected old female C57BL/6J mice to dextran sulfate sodium (DSS) in drinking water for six days, then switched back to normal drinking water, administered acyl-ghrelin or vehicle control from day 3 to 13, and monitored disease activities throughout the disease course. Our results showed that treatment of old mice with acyl-ghrelin attenuated DSS-induced colitis. Compared to the DSS group, ghrelin treatment decreased levels of the inflammation marker S100A9 in the colons collected on day 14 but not on day 8, suggesting that the anti-inflammatory effect was more prominent in the recovery phase. Ghrelin treatment also significantly reduced F4/80 and interleukin-17A on day 14. Moreover, acyl-ghrelin increased mitochondrial respiration and activated transcriptional activity of the peroxisome proliferator-activated receptor gamma (PPARγ) in Caco-2 cells. Together, our data show that ghrelin alleviated DSS-induced colitis, suggesting that ghrelin may promote tissue repair in part through regulating epithelial metabolism via PPARγ mediated signaling.
Collapse
|
35
|
Abstract
The diet and gut microbiota have been extensively interrogated as a fuel for gut inflammation in inflammatory bowel diseases (IBDs) in the last few years. Here, we review how specific nutrients, typically enriched in a Western diet, instigate or deteriorate experimental gut inflammation in a genetically susceptible host and we discuss microbiota-dependent and independent mechanisms. We depict the study landscape of nutritional trials in paediatric and adult IBD and delineate common grounds for dietary advice. Conclusively, the diet reflects a critical rheostat of microbial dysbiosis and gut inflammation in IBD. Dietary restriction by exclusive enteral nutrition, with or without a specific exclusion diet, is effectively treating paediatric Crohn's disease, while adult IBD trials are less conclusive. Insights into molecular mechanisms of nutritional therapy will change the perception of IBD and will allow us to enter the era of precision nutrition. To achieve this, we discuss the need for carefully designed nutritional trials with scientific rigour comparable to medical trials, which also requires action from stake holders. Establishing evidence-based dietary therapy for IBD does not only hold promise to avoid long-term immunosuppression, but to provide a widely accessible therapy at low cost. Identification of dietary culprits disturbing gut health also bears the potential to prevent IBD and allows informed decision making in food politics.
Collapse
Affiliation(s)
- Timon E Adolph
- Department of Medicine I, Gastroenterology, Hepatology & Metabolism, Medical University Innsbruck, Innsbruck, Austria
| | - Jingwan Zhang
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| |
Collapse
|
36
|
Mostofa F, Yasid NA, Shamsi S, Ahmad SA, Mohd-Yusoff NF, Abas F, Ahmad S. In Silico Study and Effects of BDMC33 on TNBS-Induced BMP Gene Expressions in Zebrafish Gut Inflammation-Associated Arthritis. Molecules 2022; 27:molecules27238304. [PMID: 36500396 PMCID: PMC9740523 DOI: 10.3390/molecules27238304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022]
Abstract
The bone morphogenic protein (BMP) family is a member of the TGF-beta superfamily and plays a crucial role during the onset of gut inflammation and arthritis diseases. Recent studies have reported a connection with the gut-joint axis; however, the genetic players are still less explored. Meanwhile, BDMC33 is a newly synthesized anti-inflammatory drug candidate. Therefore, in our present study, we analysed the genome-wide features of the BMP family as well as the role of BMP members in gut-associated arthritis in an inflammatory state and the ability of BDMC33 to attenuate this inflammation. Firstly, genome-wide analyses were performed on the BMP family in the zebrafish genome, employing several in silico techniques. Afterwards, the effects of curcumin analogues on BMP gene expression in zebrafish larvae induced with TNBS (0.78 mg/mL) were determined using real time-qPCR. A total of 38 identified BMP proteins were revealed to be clustered in five major clades and contain TGF beta and TGF beta pro peptide domains. Furthermore, BDMC33 suppressed the expression of four selected BMP genes in the TNBS-induced larvae, where the highest gene suppression was in the BMP2a gene (an eight-fold decrement), followed by BMP7b (four-fold decrement), BMP4 (four-fold decrement), and BMP6 (three-fold decrement). Therefore, this study reveals the role of BMPs in gut-associated arthritis and proves the ability of BDMC33 to act as a potential anti-inflammatory drug for suppressing TNBS-induced BMP genes in zebrafish larvae.
Collapse
Affiliation(s)
- Farhana Mostofa
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Nur Adeela Yasid
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Suhaili Shamsi
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Siti Aqlima Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Nur Fatihah Mohd-Yusoff
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Bimolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Faridah Abas
- Department of Food Science, Faculty of Food Science & Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Syahida Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Correspondence: ; Tel.: +603-97696724
| |
Collapse
|
37
|
Peng J, He Q, Li S, Liu T, Zhang J. Hydrogen-Rich Water Mitigates LPS-Induced Chronic Intestinal Inflammatory Response in Rats via Nrf-2 and NF-κB Signaling Pathways. Vet Sci 2022; 9:621. [PMID: 36356098 PMCID: PMC9692594 DOI: 10.3390/vetsci9110621] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 09/13/2022] [Revised: 10/18/2022] [Accepted: 11/02/2022] [Indexed: 04/04/2024] Open
Abstract
Long-term exposure to low-dose lipopolysaccharide can impair intestinal barriers, causing intestinal inflammation and leading to systemic inflammation. Hydrogen-rich water possesses antioxidant and anti-inflammatory functions and exerts inhibitory effects on various inflammatory diseases. In this study, we investigated whether oral hydrogen-rich water could prevent lipopolysaccharide-induced chronic intestinal inflammation. An experimental model was established by feeding hydrogen-rich water, followed by the injection of lipopolysaccharide (200 μg/kg) in the tail vein of rats after seven months. ELISA, Western blot, immunohistochemistry, and other methods were used to detect related cytokines, proteins related to the NF-κB and Nrf-2 signaling pathways, and tight-junction proteins to study the anti-inflammatory and antioxidant effects of hydrogen-rich water. The obtained results show that hydrogen-rich water significantly increased the levels of superoxide dismutase and structural proteins; activated the Nrf-2 signaling pathway; downregulated the expression of inflammatory factors cyclooxygenase-2, myeloperoxidase, and ROS; and decreased the activation of the NF-κB signaling pathway. These results suggest that hydrogen-rich water could protect against chronic intestinal inflammation in rats caused by lipopolysaccharide-induced activation of the NF-κB signaling pathway by regulating the Nrf-2 signaling pathway.
Collapse
Affiliation(s)
- Jin Peng
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Qi He
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Shuaichen Li
- Institute for Genome Biology, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Tao Liu
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Jiantao Zhang
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| |
Collapse
|
38
|
Pérez-Cruz M, Iliopoulou BP, Hsu K, Wu HH, Erkers T, Swaminathan K, Tang SW, Bader CS, Kambham N, Xie B, Dekruyff RH, Freeman GJ, Meyer E. Immunoregulatory effects of RGMb in gut inflammation. Front Immunol 2022; 13:960329. [PMID: 36420263 PMCID: PMC9676481 DOI: 10.3389/fimmu.2022.960329] [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: 06/02/2022] [Accepted: 10/19/2022] [Indexed: 11/09/2022] Open
Abstract
Graft-versus-host disease (GvHD) is a major complication after allogeneic hematopoietic cell transplantation (HCT). Current strategies to prevent GvHD with immunosuppressive drugs carry significant morbidity and may affect the graft-versus-tumor (GVT) effect. Inflammatory bowel disease (IBD) is an intestinal inflammatory condition that affects more than 2 million people in the United States. Current strategies to prevent colitis with immunosuppressive drugs carry significant morbidity. Recently, Repulsive Guidance Molecule b (RGMb) has been identified as part of a signaling hub with neogenin and BMP receptors in mice and humans. In addition, RGMb binds BMP-2/4 in mice and humans as well as PD-L2 in mice. RGMb is expressed in the gut epithelium and by antigen presenting cells, and we found significantly increased expression in mouse small intestine after total body irradiation HCT conditioning. We hypothesized that RGMb may play a role in GvHD and IBD pathogenesis by contributing to mucosal inflammation. Using major-mismatched HCT mouse models, treatment with an anti-RGMb monoclonal antibody (mAb) that blocks the interaction with BMP-2/4 and neogenin prevented GvHD and improved survival compared to isotype control (75% versus 30% survival at 60 days after transplantation). The GVT effect was retained in tumor models. Using an inflammatory bowel disease dextran sulfate sodium model, treatment with anti-RGMb blocking monoclonal antibody but not isotype control prevented colitis and improved survival compared to control (73% versus 33% at 21 days after treatment) restoring gut homeostasis. Anti-RGMb mAb (9D1) treatment decreased IFN-γ and significantly increased IL-5 and IL-10 in the gut of the treated mice compared to the isotype control treated mice.
Collapse
Affiliation(s)
- Magdiel Pérez-Cruz
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Bettina P. Iliopoulou
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Katie Hsu
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Hsin-Hsu Wu
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Tom Erkers
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Kavya Swaminathan
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Sai-Wen Tang
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Cameron S. Bader
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Neeraja Kambham
- Department of Developmental biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Bryan Xie
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Rosemarie H. Dekruyff
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States
| | - Gordon J. Freeman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | - Everett Meyer
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| |
Collapse
|
39
|
Gerner RR, Hossain S, Sargun A, Siada K, Norton GJ, Zheng T, Neumann W, Nuccio SP, Nolan EM, Raffatellu M. Siderophore Immunization Restricted Colonization of Adherent-Invasive Escherichia coli and Ameliorated Experimental Colitis. mBio 2022; 13:e0218422. [PMID: 36094114 PMCID: PMC9600343 DOI: 10.1128/mbio.02184-22] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Inflammatory bowel diseases (IBD) are characterized by chronic inflammation of the gastrointestinal tract and profound alterations to the gut microbiome. Adherent-invasive Escherichia coli (AIEC) is a mucosa-associated pathobiont that colonizes the gut of patients with Crohn's disease, a form of IBD. Because AIEC exacerbates gut inflammation, strategies to reduce the AIEC bloom during colitis are highly desirable. To thrive in the inflamed gut, Enterobacteriaceae acquire the essential metal nutrient iron by producing and releasing siderophores. Here, we implemented an immunization-based strategy to target the siderophores enterobactin and its glucosylated derivative salmochelin to reduce the AIEC bloom in the inflamed gut. Using chemical (dextran sulfate sodium) and genetic (Il10-/- mice) IBD mouse models, we showed that immunization with enterobactin conjugated to the mucosal adjuvant cholera toxin subunit B potently elicited mucosal and serum antibodies against these siderophores. Siderophore-immunized mice exhibited lower AIEC gut colonization, diminished AIEC association with the gut mucosa, and reduced colitis severity. Moreover, Peyer's patches and the colonic lamina propria harbored enterobactin-specific B cells that could be identified by flow cytometry. The beneficial effect of siderophore immunization was primarily B cell-dependent because immunized muMT-/- mice, which lack mature B lymphocytes, were not protected during AIEC infection. Collectively, our study identified siderophores as a potential therapeutic target to reduce AIEC colonization and its association with the gut mucosa, which ultimately may reduce colitis exacerbation. Moreover, this work provides the foundation for developing monoclonal antibodies against siderophores, which could provide a narrow-spectrum strategy to target the AIEC bloom in Crohn's disease patients. IMPORTANCE Adherent-invasive Escherichia coli (AIEC) is abnormally prevalent in patients with ileal Crohn's disease and exacerbates intestinal inflammation, but treatment strategies that selectively target AIEC are unavailable. Iron is an essential micronutrient for most living organisms, and bacterial pathogens have evolved sophisticated strategies to capture iron from the host environment. AIEC produces siderophores, small, secreted molecules with a high affinity for iron. Here, we showed that immunization to elicit antibodies against siderophores promoted a reduction of the AIEC bloom, interfered with AIEC association with the mucosa, and mitigated colitis in experimental mouse models. We also established a flow cytometry-based approach to visualize and isolate siderophore-specific B cells, a prerequisite for engineering monoclonal antibodies against these molecules. Together, this work could lead to a more selective and antibiotic-sparing strategy to target AIEC in Crohn's disease patients.
Collapse
Affiliation(s)
- Romana R. Gerner
- Department of Pediatrics, Division of Host-Microbe Systems and Therapeutics, University of California San Diego, La Jolla, California, USA
| | - Suzana Hossain
- Department of Pediatrics, Division of Host-Microbe Systems and Therapeutics, University of California San Diego, La Jolla, California, USA
| | - Artur Sargun
- Department of Chemistry, Massachusetts Institute of Technologygrid.116068.8, Cambridge, Massachusetts, USA
| | - Kareem Siada
- Department of Pediatrics, Division of Host-Microbe Systems and Therapeutics, University of California San Diego, La Jolla, California, USA
| | - Grant J. Norton
- Department of Pediatrics, Division of Host-Microbe Systems and Therapeutics, University of California San Diego, La Jolla, California, USA
| | - Tengfei Zheng
- Department of Chemistry, Massachusetts Institute of Technologygrid.116068.8, Cambridge, Massachusetts, USA
| | - Wilma Neumann
- Department of Chemistry, Massachusetts Institute of Technologygrid.116068.8, Cambridge, Massachusetts, USA
| | - Sean-Paul Nuccio
- Department of Pediatrics, Division of Host-Microbe Systems and Therapeutics, University of California San Diego, La Jolla, California, USA
| | - Elizabeth M. Nolan
- Department of Chemistry, Massachusetts Institute of Technologygrid.116068.8, Cambridge, Massachusetts, USA
| | - Manuela Raffatellu
- Department of Pediatrics, Division of Host-Microbe Systems and Therapeutics, University of California San Diego, La Jolla, California, USA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, California, USA
- Chiba University-University of California-San Diego Center for Mucosal Immunology, Allergy, and Vaccines (CU-UCSD cMAV), La Jolla, California, USA
| |
Collapse
|
40
|
Sun J, Akıllıoğlu HG, Aasmul‐Olsen K, Ye Y, Lund P, Zhao X, Brunse A, Nielsen CF, Chatterton DEW, Sangild PT, Lund MN, Bering SB. Ultra-High Temperature Treatment and Storage of Infant Formula Induces Dietary Protein Modifications, Gut Dysfunction, and Inflammation in Preterm Pigs. Mol Nutr Food Res 2022; 66:e2200132. [PMID: 36052940 PMCID: PMC9786312 DOI: 10.1002/mnfr.202200132] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/10/2022] [Indexed: 12/30/2022]
Abstract
SCOPE Ready-to-feed liquid infant formula is increasingly used for preterm infants when human milk is unavailable. These formulas are sterilized by ultra-high temperature treatment, but heating and storage may reduce bioactivity and increase formation of Maillard reaction products with potential negative consequences for immature newborns. METHODS AND RESULTS Using preterm pigs as a model for sensitive newborn infants, the study tests the intestinal responses of feeding experimental liquid formula within 5 days. A pasteurized formula (PAST) with the same nutrient composition but less protein modifications serves as control to ultra-high temperature-treated formula without (UHT) and with prolonged storage (SUHT). Relative to PAST, UHT contains lower levels of lactoferrin and IgG. Additional storage (40 °C, 60 days, SUHT) reduces antimicrobial capacity and increases non-reducible protein aggregates and Maillard reaction products (up to 13-fold). Pigs fed SUHT have more diarrhea and show signs of intestinal inflammation (necrotizing enterocolitis) compared with pigs fed PAST and UHT. These clinical effects are accompanied by accumulation of Maillard reaction products, protein cross-links, and inflammatory responses in the gut. CONCLUSION The results demonstrate that feeding UHT infant formulas, particularly after prolonged storage, adversely affects gut maturation and function in preterm pigs used as a model of preterm infants.
Collapse
Affiliation(s)
- Jing Sun
- Comparative Pediatrics and NutritionDepartment of Veterinary and Animal SciencesUniversity of CopenhagenDyrlægevej 68Frederiksberg C1870Denmark
| | - Halise Gül Akıllıoğlu
- Department of Food ScienceUniversity of CopenhagenRolighedsvej 26Frederiksberg1958Denmark
| | - Karoline Aasmul‐Olsen
- Comparative Pediatrics and NutritionDepartment of Veterinary and Animal SciencesUniversity of CopenhagenDyrlægevej 68Frederiksberg C1870Denmark
| | - Yuhui Ye
- Department of Food ScienceUniversity of CopenhagenRolighedsvej 26Frederiksberg1958Denmark
| | - Pernille Lund
- Department of Food ScienceUniversity of CopenhagenRolighedsvej 26Frederiksberg1958Denmark
| | - Xiao Zhao
- Department of Food ScienceUniversity of CopenhagenRolighedsvej 26Frederiksberg1958Denmark
| | - Anders Brunse
- Comparative Pediatrics and NutritionDepartment of Veterinary and Animal SciencesUniversity of CopenhagenDyrlægevej 68Frederiksberg C1870Denmark
| | | | | | - Per Torp Sangild
- Comparative Pediatrics and NutritionDepartment of Veterinary and Animal SciencesUniversity of CopenhagenDyrlægevej 68Frederiksberg C1870Denmark,Department of Pediatrics and Adolescent MedicineRigshospitaletBlegdamsvej 9Copenhagen Ø2100Denmark,Hans Christian Andersen Children's HospitalJ. B. Winsløws Vej 4Odense C5000Denmark
| | - Marianne N. Lund
- Department of Food ScienceUniversity of CopenhagenRolighedsvej 26Frederiksberg1958Denmark,Department of Biomedical SciencesUniversity of CopenhagenBlegdamsvej 3BCopenhagen N2200Denmark
| | - Stine Brandt Bering
- Comparative Pediatrics and NutritionDepartment of Veterinary and Animal SciencesUniversity of CopenhagenDyrlægevej 68Frederiksberg C1870Denmark
| |
Collapse
|
41
|
Satka S, Frybortova V, Zapletalova I, Anzenbacher P, Anzenbacherova E, Kozakova H, Srutkova D, Hudcovic T, Jourova L. Effect of DSS-Induced Ulcerative Colitis and Butyrate on the Cytochrome P450 2A5: Contribution of the Microbiome. Int J Mol Sci 2022; 23:11627. [PMID: 36232929 DOI: 10.3390/ijms231911627] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/30/2022] [Revised: 09/27/2022] [Accepted: 09/27/2022] [Indexed: 12/02/2022] Open
Abstract
Several studies have indicated the beneficial anti-inflammatory effect of butyrate in inflammatory bowel disease (IBD) therapy implying attempts to increase butyrate production in the gut through orally administered dietary supplementation. Through the gut-liver axis, however, butyrate may reach directly the liver and influence the drug-metabolizing ability of hepatic enzymes, and, indirectly, also the outcome of applied pharmacotherapy. The focus of our study was on the liver microsomal cytochrome P450 (CYP) 2A5, which is a mouse orthologue of human CYP2A6 responsible for metabolism of metronidazole, an antibiotic used to treat IBD. Our findings revealed that specific pathogen-free (SPF) and germ-free (GF) mice with dextran sulfate sodium (DSS)-induced colitis varied markedly in enzyme activity of CYP2A and responded differently to butyrate pre-treatment. A significant decrease (to 50%) of the CYP2A activity was observed in SPF mice with colitis; however, an administration of butyrate prior to DSS reversed this inhibition effect. This phenomenon was not observed in GF mice. The results highlight an important role of gut microbiota in the regulation of CYP2A under inflammatory conditions. Due to the role of CYP2A in metronidazole metabolism, this phenomenon may have an impact on the IBD therapy. Butyrate administration, hence, brings promising therapeutic potential for improving symptoms of gut inflammation; however, possible interactions with drug metabolism need to be further studied.
Collapse
|
42
|
Long T, Abbasi N, Hernandez JE, Li Y, Sayed IM, Ma S, Iemolo A, Yee BA, Yeo GW, Telese F, Ghosh P, Das S, Huang WJM. RNA binding protein DDX5 directs tuft cell specification and function to regulate microbial repertoire and disease susceptibility in the intestine. Gut 2022; 71:1790-1802. [PMID: 34853057 PMCID: PMC9156727 DOI: 10.1136/gutjnl-2021-324984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 11/12/2021] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Tuft cells residing in the intestinal epithelium have diverse functions. In the small intestine, they provide protection against inflammation, combat against helminth and protist infections, and serve as entry portals for enteroviruses. In the colon, they had been implicated in tumourigenesis. Commitment of intestinal progenitor cells to the tuft cell lineage requires Rho GTPase Cell Division Cycle 42 (CDC42), a Rho GTPase that acts downstream of the epidermal growth factor receptor and wingless-related integration site signalling cascades, and the master transcription factor POU class 2 homeobox 3 (POU2F3). This study investigates how this pathway is regulated by the DEAD box containing RNA binding protein DDX5 in vivo. DESIGN We assessed the role of DDX5 in tuft cell specification and function in control and epithelial cell-specific Ddx5 knockout mice (DDX5ΔIEC) using transcriptomic approaches. RESULTS DDX5ΔIEC mice harboured a loss of intestinal tuft cell populations, modified microbial repertoire, and altered susceptibilities to ileal inflammation and colonic tumourigenesis. Mechanistically, DDX5 promotes CDC42 protein synthesis through a post-transcriptional mechanism to license tuft cell specification. Importantly, the DDX5-CDC42 axis is parallel but distinct from the known interleukin-13 circuit implicated in tuft cell hyperplasia, and both pathways augment Pou2f3 expression in secretory lineage progenitors. In mature tuft cells, DDX5 not only promotes integrin signalling and microbial responses, it also represses gene programmes involved in membrane transport and lipid metabolism. CONCLUSION RNA binding protein DDX5 directs tuft cell specification and function to regulate microbial repertoire and disease susceptibility in the intestine.
Collapse
Affiliation(s)
- Tianyun Long
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| | - Nazia Abbasi
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| | - Juan E Hernandez
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| | - Yuxin Li
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| | - Ibrahim M Sayed
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Shengyun Ma
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| | - Attilio Iemolo
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Brian A Yee
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| | - Gene W Yeo
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| | - Francesca Telese
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Pradipta Ghosh
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Soumita Das
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Wendy Jia Men Huang
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, USA
| |
Collapse
|
43
|
Barron MR, Sovacool KL, Abernathy-Close L, Vendrov KC, Standke AK, Bergin IL, Schloss PD, Young VB. Intestinal Inflammation Reversibly Alters the Microbiota to Drive Susceptibility to Clostridioides difficile Colonization in a Mouse Model of Colitis. mBio 2022; 13:e0190422. [PMID: 35900107 DOI: 10.1128/mbio.01904-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Indexed: 01/21/2023] Open
Abstract
Susceptibility to Clostridioides difficile infection (CDI) typically follows the administration of antibiotics. Patients with inflammatory bowel disease (IBD) have increased incidence of CDI, even in the absence of antibiotic treatment. However, the mechanisms underlying this susceptibility are not well understood. To explore the intersection between CDI and IBD, we recently described a mouse model where colitis triggered by the murine gut bacterium, Helicobacter hepaticus, in IL-10-/- mice led to susceptibility to C. difficile colonization without antibiotic administration. The current work disentangles the relative contributions of inflammation and gut microbiota in colonization resistance to C. difficile in this model. We show that inflammation drives changes in microbiota composition, which leads to CDI susceptibility. Decreasing inflammation with an anti-p40 monoclonal antibody promotes a shift of the microbiota back toward a colonization-resistant state. Transferring microbiota from susceptible and resistant mice to germfree animals transfers the susceptibility phenotype, supporting the primacy of the microbiota in colonization resistance. These findings shine light on the complex interactions between the host, microbiota, and C. difficile in the context of intestinal inflammation, and may form a basis for the development of strategies to prevent or treat CDI in IBD patients. IMPORTANCE Patients with inflammatory bowel disease (IBD) have an increased risk of developing C. difficile infection (CDI), even in the absence of antibiotic treatment. Yet, mechanisms regulating C. difficile colonization in IBD patients remain unclear. Here, we use an antibiotic-independent mouse model to demonstrate that intestinal inflammation alters microbiota composition to permit C. difficile colonization in mice with colitis. Notably, treating inflammation with an anti-p40 monoclonal antibody, a clinically relevant IBD therapeutic, restores microbiota-mediated colonization resistance to the pathogen. Through microbiota transfer experiments in germfree mice, we confirm that the microbiota shaped in the setting of IBD is the primary driver of susceptibility to C. diffiicile colonization. Collectively, our findings provide insight into CDI pathogenesis in the context of intestinal inflammation, which may inform methods to manage infection in IBD patients. More broadly, this work advances our understanding of mechanisms by which the host-microbiota interface modulates colonization resistance to C. difficile.
Collapse
|
44
|
Zeng J, Wang X, Pan F, Mao Z. The relationship between Parkinson's disease and gastrointestinal diseases. Front Aging Neurosci 2022; 14:955919. [PMID: 36034146 PMCID: PMC9399652 DOI: 10.3389/fnagi.2022.955919] [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: 05/29/2022] [Accepted: 07/25/2022] [Indexed: 01/03/2023] Open
Abstract
An increasing number of studies have provided evidence for the hypothesis that the pathogenesis of Parkinson's disease (PD) may derive from the gut. Firstly, Lewy pathology can be induced in the enteric nervous system (ENS) and be transported to the central nervous system (CNS) via the vagal nerve. Secondly, the altered composition of gut microbiota causes an imbalance between beneficial and deleterious microbial metabolites which interacts with the increased gut permeability and the gut inflammation as well as the systemic inflammation. The activated inflammatory status then affects the CNS and promotes the pathology of PD. Given the above-mentioned findings, researchers start to pay attention to the connection between PD and gastrointestinal diseases including irritable bowel syndrome, inflammatory bowel disease (IBD), microscopic colitis (MC), gastrointestinal infections, gastrointestinal neoplasms, and colonic diverticular disease (CDD). This review focuses on the association between PD and gastrointestinal diseases as well as the pathogenesis of PD from the gut.
Collapse
Affiliation(s)
- Jiaqi Zeng
- Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Xinchan Wang
- Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Nankai University, Tianjin, China
| | - Fei Pan
- Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhiqi Mao
- Department of Neurosurgery, First Medical Center, Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
45
|
He S, Azar DA, Esfahani FN, Azar GA, Shazly T, Saeidi N. Mechanoscopy: A Novel Device and Procedure for in vivo Detection of Chronic Colitis in Mice. Inflamm Bowel Dis 2022; 28:1143-1150. [PMID: 35325126 PMCID: PMC9340527 DOI: 10.1093/ibd/izac046] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Gut stiffening caused by fibrosis plays a critical role in the progression of inflammatory bowel disease (IBD) and colon cancer. Previous studies have characterized the biomechanical response of healthy and pathological gut, with most measurements obtained ex vivo. METHODS Here, we developed a device and accompanying procedure for in vivo quantification of gut stiffness, termed mechanoscopy. Mechanoscopy includes a flexible balloon catheter, pressure sensor, syringe pump, and control system. The control system activates the balloon catheter and performs automated measurements of the gut stress-strain biomechanical response. RESULTS A gut stiffness index (GSI) is identified based on the slope of the obtained stress-strain response. Using a colitis mouse model, we demonstrated that GSI positively correlates with the extent of gut fibrosis, the severity of mucosal damage, and the infiltration of immune cells. Furthermore, a critical strain value is suggested, and GSI efficiently detects pathological gut fibrotic stiffening when the strain exceeds this value. CONCLUSIONS Based on these results, we envision that mechanoscopy and GSI will facilitate the clinical diagnosis of IBD.
Collapse
Affiliation(s)
| | | | - Farid Nasr Esfahani
- Division of Gastrointestinal and Oncologic Surgery, Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
- Center for Engineering in Medicine and Surgery, Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
- Shriners Hospital for Children, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Golara A Azar
- Department of Electrical Engineering and Computer Sciences, University of California Los Angeles, Los Angeles, CA, USA
| | - Tarek Shazly
- Department of Mechanical Engineering, University of South Carolina, Columbia, SC, USA
| | - Nima Saeidi
- Address correspondence to: Nima Saeidi, 51 Blossom St., Room 207, Boston, MA, 02114, USA ()
| |
Collapse
|
46
|
Leven P, Schneider R, Siemens KD, Jackson WS, Wehner S. Application of a RiboTag-based approach to generate and analyze mRNA from enteric neural cells. Neurogastroenterol Motil 2022; 34:e14309. [PMID: 34939271 DOI: 10.1111/nmo.14309] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 11/22/2021] [Accepted: 11/29/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Transcriptional profiling of specific intestinal cell populations under health and disease is generally based on traditional sorting approaches followed by gene expression analysis. Therein, specific cell populations are identified either by expressing reporter genes under a cell type-specific promotor or by specific surface antigens. This method provides adequate results for blood-derived and tissue-resident immune cells. However, in stromal cell analysis, cellular stress due to digestion often results in degraded RNA. Particularly, ramified cells integrated into the tissue, such as enteric neurons and glial cells, suffer from these procedures. These cell types are involved in various intestinal processes, including a prominent immune-regulatory role, which requires suitable approaches to generate cell-specific transcriptional profiles. METHODS Sox10iCreERT2 and choline acetyltransferase (ChATCre ) mice were crossed with mice labeling the ribosomal Rpl22 protein upon Cre activity with a hemagglutinin tag (Rpl22-HA, termed RiboTag). This approach enabled cellular targeting of enteric glia and neurons and the immediate isolation of cell-specific mRNA from tissue lysates without the need for cell sorting. KEY RESULTS We verified the specific expression of Rpl22-HA in enteric glia and neurons and provided gene expression data demonstrating a successful enrichment of either Sox-10+ glial or ChAT+ neuronal mRNAs by the RiboTag-mRNA procedure using qPCR and RNA-Seq analysis. CONCLUSIONS AND INFERENCES We present a robust and selective protocol that allows the generation of cell type-specific transcriptional in vivo snapshots of distinct enteric cell populations that will be especially useful for various intestinal disease models involving peripheral neural cells.
Collapse
Affiliation(s)
- Patrick Leven
- Department of Surgery, University Hospital Bonn, Bonn, Germany
| | | | - Kevin D Siemens
- Department of Surgery, University Hospital Bonn, Bonn, Germany
| | - Walker S Jackson
- Department of Biomedical and Clinical Sciences, Wallenberg Center for Molecular Medicine, Linköping University, Linköping, Sweden
| | - Sven Wehner
- Department of Surgery, University Hospital Bonn, Bonn, Germany
| |
Collapse
|
47
|
Neufert C. Transmural intestinal fibrosis in men and mice. Gut 2022; 71:1242-1244. [PMID: 34725200 DOI: 10.1136/gutjnl-2021-325522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 10/23/2021] [Indexed: 12/08/2022]
Affiliation(s)
- Clemens Neufert
- Department of Medicine 1, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Bavaria, Germany .,Deutsches Zentrum Immuntherapie (DZI), Erlangen, Bavaria, Germany
| |
Collapse
|
48
|
Lee HR, Sung JH. Multi-Organ-on-a-Chip for Realization of Gut-Skin Axis. Biotechnol Bioeng 2022; 119:2590-2601. [PMID: 35750599 DOI: 10.1002/bit.28164] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/24/2022] [Accepted: 06/21/2022] [Indexed: 11/06/2022]
Abstract
The concept of physiological link between the gut and the skin, known as the gut-skin axis, has been gaining more evidence recently. Although experimental data from animal and human studies support the existence of the gut-skin axis, in vitro model platforms that can test the hypothesis are lacking. Organ-on-a-chip offers the possibility of connecting different tissues and recapitulating interactions between them. In this study, we report a multi-organ chip that can capture the basic inter-organ communication between the gut and the skin. Its modular design enables separate culture and differentiation of the gut and skin tissues, and after assembly the two organs are connected via microfluidic channels than enables perfusion and mass transfer. We showed that the impairment of the gut barrier function exacerbated the adverse effect of fatty acids on skin cells, with decreased viability, increased level of cytokine secretion and human β-defensin-2 (hBD-2), an inflammatory dermal disease marker. Based on these results, we believe that our multi-organ chip can be a novel in vitro platform for recapitulating complex mechanisms underlying the gut-skin axis. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Hye Ri Lee
- Department of Chemical Engineering, Hongik University, Seoul, Korea
| | - Jong Hwan Sung
- Department of Chemical Engineering, Hongik University, Seoul, Korea
| |
Collapse
|
49
|
Zheng Q, Chen Y, Zhai Y, Meng L, Liu H, Tian H, Feng R, Wang J, Zhang R, Sun K, Gao L, Wang Y, Wang X, Wu E, Teng J, Ding X. Gut Dysbiosis Is Associated With the Severity of Cryptogenic Stroke and Enhanced Systemic Inflammatory Response. Front Immunol 2022; 13:836820. [PMID: 35603160 PMCID: PMC9120915 DOI: 10.3389/fimmu.2022.836820] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/22/2022] [Indexed: 01/14/2023] Open
Abstract
Studies implicate that gut dysbiosis is related with many neurological diseases. However, the potential role of gut dysbiosis in cryptogenic stroke (CS) has not been elucidated yet. In this study, a high prevalence of gastrointestinal (GI) dysfunction and gut inflammation with increased intestinal permeability have been found in CS patients compared with normal controls (NCs). The systemic inflammation in CS patients was also identified by measuring the levels of plasma C-reactive protein (CRP), lipopolysaccharide (LPS), LPS-binding protein (LBP), and white blood cells (WBC) count. Using 16S rRNA sequencing, we found increased alpha diversity, accompanied by a higher abundance of Enterobacteriaceae, Streptococcaceae, and Lactobacillaceae at the family level and Escherichia–Shigella, Streptococcus, Lactobacillus, and Klebsilla at the genus level in the intestinal microbiota of CS patients compared to NCs. Our results showed that the abundance of Klebsilla was positively correlated with the systemic inflammation, the National Institutes of Health Stroke Scale (NIHSS) scores, and the infarct volumes. In conclusion, gut dysbiosis in CS patients was associated with the severity of CS and the systemic inflammation. Maintaining the intestinal homeostasis may be a potential strategy for the treatment of CS.
Collapse
Affiliation(s)
- Qianyi Zheng
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Yongkang Chen
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Yanping Zhai
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Lin Meng
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Han Liu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Haiyan Tian
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Renyi Feng
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Jiuqi Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Rui Zhang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Kedi Sun
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Lina Gao
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Yijing Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Xuejing Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Erxi Wu
- Neuroscience Institute and Department of Neurosurgery, Baylor Scott & White Health, Temple, TX, United States.,College of Medicine, Texas A&M University, College Station, TX, United States.,Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, TX, United States.,LIVESTRONG Cancer Institutes and Department of Oncology, Dell Medical School, University of Texas at Austin, Austin, TX, United States
| | - Junfang Teng
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| | - Xuebing Ding
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Parkinson and Movement Disorder, Zhengzhou University, Zhengzhou, China
| |
Collapse
|
50
|
Abstract
Inflammatory bowel diseases (IBD), namely, Crohn's disease (CD) and ulcerative colitis (UC), are lifelong and incurable chronic inflammatory diseases affecting 6.8 million people worldwide. By 2030, the prevalence of IBD is estimated to reach 1% of the population in Western countries, and thus there is an urgent need to develop effective therapies to reduce the burden of this disease. Microbiome dysbiosis is at the heart of the IBD pathophysiology, and current research and development efforts for IBD treatments have been focused on gut microbiome regulation. Diet can shape the intestinal microbiome. Diet is also preferred over medication, is safe, and has been proven to be an effective strategy for the management of IBD. Therefore, although often overlooked, dietary interventions targeting the microbiome represent ideal treatments for IBD. Here, I summarize the latest research on diet as a treatment for IBD from infancy to adulthood, compile evidence of the mechanisms of action behind diet as treatment, and, lastly, provide insights into future research focusing on culturally tailored diets for ethnic minority groups with increased incidence of IBD yet underrepresented in nutrition research.
Collapse
Affiliation(s)
- Ana Maldonado-Contreras
- University of Massachusetts Chan Medical School, Department of Microbiology and Physiological Systems, Program of Microbiome Dynamics, Worcester, Massachusetts, USA
| |
Collapse
|