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Stark KA, Rinaldi G, Costain A, Clare S, Tolley C, Almeida A, McCarthy C, Harcourt K, Brandt C, Lawley TD, Berriman M, MacDonald AS, Forde-Thomas JE, Hulme BJ, Hoffmann KF, Cantacessi C, Cortés A. Gut microbiota and immune profiling of microbiota-humanised versus wildtype mouse models of hepatointestinal schistosomiasis. Anim Microbiome 2024; 6:36. [PMID: 38918824 DOI: 10.1186/s42523-024-00318-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/27/2024] [Indexed: 06/27/2024] Open
Abstract
Mounting evidence of the occurrence of direct and indirect interactions between the human blood fluke, Schistosoma mansoni, and the gut microbiota of rodent models raises questions on the potential role(s) of the latter in the pathophysiology of hepatointestinal schistosomiasis. However, substantial differences in both the composition and function between the gut microbiota of laboratory rodents and that of humans hinders an in-depth understanding of the significance of such interactions for human schistosomiasis. Taking advantage of the availability of a human microbiota-associated mouse model (HMA), we have previously highlighted differences in infection-associated changes in gut microbiota composition between HMA and wildtype (WT) mice. To further explore the dynamics of schistosome-microbiota relationships in HMA mice, in this study we (i) characterize qualitative and quantitative changes in gut microbiota composition of a distinct line of HMA mice (D2 HMA) infected with S. mansoni prior to and following the onset of parasite egg production; (ii) profile local and systemic immune responses against the parasite in HMA as well as WT mice and (iii) assess levels of faecal inflammatory markers and occult blood as indirect measures of gut tissue damage. We show that patent S. mansoni infection is associated with reduced bacterial alpha diversity in the gut of D2 HMA mice, alongside expansion of hydrogen sulphide-producing bacteria. Similar systemic humoral responses against S. mansoni in WT and D2 HMA mice, as well as levels of faecal lipocalin and markers of alternatively activated macrophages, suggest that these are independent of baseline gut microbiota composition. Qualitative comparative analyses between faecal microbial profiles of S. mansoni-infected WT and distinct lines of HMA mice reveal that, while infection-induced alterations of the gut microbiota composition are highly dependent on the baseline flora, bile acid composition and metabolism may represent key elements of schistosome-microbiota interactions through the gut-liver axis.
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Affiliation(s)
- K A Stark
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - G Rinaldi
- Department of Life Sciences, Aberystwyth University, Aberystwyth, UK
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - A Costain
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK
| | - S Clare
- Department of Medicine, Addenbrookes Hospital, University of Cambridge, Cambridge, UK
| | - C Tolley
- Department of Medicine, Addenbrookes Hospital, University of Cambridge, Cambridge, UK
| | - A Almeida
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - C McCarthy
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - K Harcourt
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - C Brandt
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - T D Lawley
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - M Berriman
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, UK
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - A S MacDonald
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK
| | - J E Forde-Thomas
- Department of Life Sciences, Aberystwyth University, Aberystwyth, UK
| | - B J Hulme
- Department of Life Sciences, Aberystwyth University, Aberystwyth, UK
| | - K F Hoffmann
- Department of Life Sciences, Aberystwyth University, Aberystwyth, UK
| | - C Cantacessi
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK.
| | - A Cortés
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Valencia, Spain
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2
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Rondepierre F, Meynier M, Gagniere J, Deneuvy V, Deneuvy A, Roche G, Baudu E, Pereira B, Bonnet R, Barnich N, Carvalho FA, Pezet D, Bonnet M, Jalenques I. Preclinical and clinical evidence of the association of colibactin-producing Escherichia coli with anxiety and depression in colon cancer. World J Gastroenterol 2024; 30:2817-2826. [PMID: 38899326 PMCID: PMC11185296 DOI: 10.3748/wjg.v30.i21.2817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND The association between the intestinal microbiota and psychiatric disorders is becoming increasingly apparent. The gut microbiota contributes to colorectal carcinogenesis (CRC), as demonstrated with colibactin-producing Escherichia coli (CoPEC). AIM To evaluate the association between CoPEC prevalence and anxiety- and depressive-like behaviors with both preclinical and clinical approaches. METHODS Patients followed after a CRC surgery and for whom the prevalence of CoPEC has been investigated underwent a psychiatric interview. Results were compared according to the CoPEC colonization. In parallel C57BL6/J wild type mice and mice with a CRC susceptibility were chronically infected with a CoPEC strain. Their behavior was assessed using the Elevated Plus Maze test, the Forced Swimming Test and the Behavior recognition system PhenoTyper®. RESULTS In a limited cohort, all patients with CoPEC colonization presented with psychiatric disorders several years before cancer diagnosis, whereas only one patient (17%) without CoPEC did. This result was confirmed in C57BL6/J wild-type mice and in a CRC susceptibility mouse model (adenomatous polyposis colimultiple intestinal neoplasia/+). Mice exhibited a significant increase in anxiety- and depressive-like behaviors after chronic infection with a CoPEC strain. CONCLUSION This finding provides the first evidence that CoPEC infection can induce microbiota-gut-brain axis disturbances in addition to its procarcinogenic properties.
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Affiliation(s)
- Fabien Rondepierre
- Service de Psychiatrie de l’Adulte A et Psychologie Médicale, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Maëva Meynier
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- NeuroDol, UMR 1107, INSERM, University of Clermont Auvergne, Clermont-Ferrand 63001, France
| | - Johan Gagniere
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- Department of Digestive Surgery, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Vincent Deneuvy
- Service de Psychiatrie de l’Adulte A et Psychologie Médicale, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Anissa Deneuvy
- Department of Digestive Surgery, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Gwenaelle Roche
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
| | - Elodie Baudu
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- NeuroDol, UMR 1107, INSERM, University of Clermont Auvergne, Clermont-Ferrand 63001, France
| | - Bruno Pereira
- Biostatistics Unit, Department of Clinical Research and Innovation, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Richard Bonnet
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- Department of Bacteriology, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Nicolas Barnich
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
| | | | - Denis Pezet
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- Department of Digestive Surgery, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Mathilde Bonnet
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
| | - Isabelle Jalenques
- Service de Psychiatrie de l’Adulte A et Psychologie Médicale, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
- Université Clermont Auvergne, INP, CNRS, Clermont Auvergne Institut Pascal, Clermont-Ferrand 63000, France
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Elger T, Fererberger T, Huss M, Sommersberger S, Mester P, Stoeckert P, Gunawan S, Liebisch G, Loibl J, Kandulski A, Müller M, Buechler C, Tews HC. Urinary soluble CD163 is a putative non-invasive biomarker for primary sclerosing cholangitis. Exp Mol Pathol 2024; 137:104900. [PMID: 38729058 DOI: 10.1016/j.yexmp.2024.104900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 03/25/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024]
Abstract
Soluble CD163 (sCD163) is a selective marker of macrophages whose circulating levels have been found to be induced in patients with active inflammatory bowel disease (IBD). Urinary proteins are emerging as non-invasive diagnostic biomarkers, and here, sCD163 levels were measured in the urine of 18 controls and 63 patients with IBD by enzyme-linked immunosorbent assay. Urinary sCD163 levels did, however, not differentiate IBD patients from controls. Analysis of sCD163 in the serum of 51 of these patients did not show higher levels in IBD. Primary sclerosing cholangitis (PSC) is often associated with IBD, and sCD163 was higher in the urine of the 21 patients and in the serum of the 13 patients with PSC compared to patients with IBD. Of clinical relevance, urinary sCD163 levels were higher in PSC patients compared to those with other chronic liver diseases (n = 16), while serum sCD163 levels were comparable between the two groups. Serum sCD163 of IBD and PSC patients positively correlated with serum C-reactive protein. Serum creatinine and glomerular filtration rate, surrogate markers for renal function, did not significantly correlate with urinary or serum sCD163 levels in IBD or PSC patients. Moreover, urinary sCD163 was not related to fecal calprotectin levels whereas serum sCD163 of IBD patients showed a positive trend. PSC associated with IBD and PSC without underlying IBD had similar levels of urinary sCD163 while serum sCD163 tended to be higher in the latter group. In PSC patients, urinary sCD163 did not correlate with serum aminotransferase levels, gamma glutamyl transferase, alkaline phosphatase, bilirubin or the Model for End Stage Liver Disease score. Ursodeoxycholic acid was prescribed to our PSC patients and fecal levels of ursodeoxycholic acid and its conjugated forms were increased in PSC compared to IBD patients. Otherwise, fecal bile acid levels of IBD and PSC patients were almost identical, and were not correlated with urinary and serum sCD163 in PSC. In summary, our study identified urinary sCD163 as a potential biomarker for PSC.
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Affiliation(s)
- Tanja Elger
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Tanja Fererberger
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Muriel Huss
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Stefanie Sommersberger
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Patricia Mester
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Petra Stoeckert
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Stefan Gunawan
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Gerhard Liebisch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Johanna Loibl
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Arne Kandulski
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Martina Müller
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Christa Buechler
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany.
| | - Hauke Christian Tews
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
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Cherrak Y, Salazar MA, Yilmaz K, Kreuzer M, Hardt WD. Commensal E. coli limits Salmonella gut invasion during inflammation by producing toxin-bound siderophores in a tonB-dependent manner. PLoS Biol 2024; 22:e3002616. [PMID: 38865418 PMCID: PMC11168627 DOI: 10.1371/journal.pbio.3002616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 04/05/2024] [Indexed: 06/14/2024] Open
Abstract
The gastrointestinal tract is densely colonized by a polymicrobial community known as the microbiota which serves as primary line of defence against pathogen invasion. The microbiota can limit gut-luminal pathogen growth at different stages of infection. This can be traced to specific commensal strains exhibiting direct or indirect protective functions. Although these mechanisms hold the potential to develop new approaches to combat enteric pathogens, they remain far from being completely described. In this study, we investigated how a mouse commensal Escherichia coli can outcompete Salmonella enterica serovar Typhimurium (S. Tm). Using a salmonellosis mouse model, we found that the commensal E. coli 8178 strain relies on a trojan horse trap strategy to limit S. Tm expansion in the inflamed gut. Combining mutants and reporter tools, we demonstrated that inflammation triggers the expression of the E. coli 8178 antimicrobial microcin H47 toxin which, when fused to salmochelin siderophores, can specifically alter S. Tm growth. This protective function was compromised upon disruption of the E. coli 8178 tonB-dependent catecholate siderophore uptake system, highlighting a previously unappreciated crosstalk between iron intake and microcin H47 activity. By identifying the genetic determinants mediating S. Tm competition, our work not only provides a better mechanistic understanding of the protective function displayed by members of the gut microbiota but also further expands the general contribution of microcins in bacterial antagonistic relationships. Ultimately, such insights can open new avenues for developing microbiota-based approaches to better control intestinal infections.
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Affiliation(s)
- Yassine Cherrak
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Miguel Angel Salazar
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Koray Yilmaz
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Markus Kreuzer
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Wolf-Dietrich Hardt
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
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5
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Wolter M, Grant ET, Boudaud M, Pudlo NA, Pereira GV, Eaton KA, Martens EC, Desai MS. Diet-driven differential response of Akkermansia muciniphila modulates pathogen susceptibility. Mol Syst Biol 2024; 20:596-625. [PMID: 38745106 PMCID: PMC11148096 DOI: 10.1038/s44320-024-00036-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/06/2024] [Accepted: 04/12/2024] [Indexed: 05/16/2024] Open
Abstract
The erosion of the colonic mucus layer by a dietary fiber-deprived gut microbiota results in heightened susceptibility to an attaching and effacing pathogen, Citrobacter rodentium. Nevertheless, the questions of whether and how specific mucolytic bacteria aid in the increased pathogen susceptibility remain unexplored. Here, we leverage a functionally characterized, 14-member synthetic human microbiota in gnotobiotic mice to deduce which bacteria and functions are responsible for the pathogen susceptibility. Using strain dropouts of mucolytic bacteria from the community, we show that Akkermansia muciniphila renders the host more vulnerable to the mucosal pathogen during fiber deprivation. However, the presence of A. muciniphila reduces pathogen load on a fiber-sufficient diet, highlighting the context-dependent beneficial effects of this mucin specialist. The enhanced pathogen susceptibility is not owing to altered host immune or pathogen responses, but is driven by a combination of increased mucus penetrability and altered activities of A. muciniphila and other community members. Our study provides novel insights into the mechanisms of how discrete functional responses of the same mucolytic bacterium either resist or enhance enteric pathogen susceptibility.
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Affiliation(s)
- Mathis Wolter
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Erica T Grant
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Marie Boudaud
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Nicholas A Pudlo
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Gabriel V Pereira
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Kathryn A Eaton
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Eric C Martens
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Mahesh S Desai
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
- Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
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6
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Swisa A, Kieckhaefer J, Daniel SG, El-Mekkoussi H, Kolev HM, Tigue M, Jin C, Assenmacher CA, Dohnalová L, Thaiss CA, Karlsson NG, Bittinger K, Kaestner KH. The evolutionarily ancient FOXA transcription factors shape the murine gut microbiome via control of epithelial glycosylation. Dev Cell 2024:S1534-5807(24)00323-X. [PMID: 38821056 DOI: 10.1016/j.devcel.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/19/2023] [Accepted: 05/09/2024] [Indexed: 06/02/2024]
Abstract
Evolutionary adaptation of multicellular organisms to a closed gut created an internal microbiome differing from that of the environment. Although the composition of the gut microbiome is impacted by diet and disease state, we hypothesized that vertebrates promote colonization by commensal bacteria through shaping of the apical surface of the intestinal epithelium. Here, we determine that the evolutionarily ancient FOXA transcription factors control the composition of the gut microbiome by establishing favorable glycosylation on the colonic epithelial surface. FOXA proteins bind to regulatory elements of a network of glycosylation enzymes, which become deregulated when Foxa1 and Foxa2 are deleted from the intestinal epithelium. As a direct consequence, microbial composition shifts dramatically, and spontaneous inflammatory bowel disease ensues. Microbiome dysbiosis was quickly reversed upon fecal transplant into wild-type mice, establishing a dominant role for the host epithelium, in part mediated by FOXA factors, in controlling symbiosis in the vertebrate holobiont.
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Affiliation(s)
- Avital Swisa
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Julia Kieckhaefer
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Scott G Daniel
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Hilana El-Mekkoussi
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Hannah M Kolev
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Mark Tigue
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Chunsheng Jin
- Department of Medical Biochemistry, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Charles-Antoine Assenmacher
- Comparative Pathology Core, Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA
| | - Lenka Dohnalová
- Microbiology Department, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Christoph A Thaiss
- Microbiology Department, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Niclas G Karlsson
- Department of Medical Biochemistry, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Life Sciences and Health, Faculty of Health Sciences, Oslo Metropolitan University, 0130 Oslo, Norway
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Klaus H Kaestner
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA.
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Gervason S, Meleine M, Lolignier S, Meynier M, Daugey V, Birer A, Aissouni Y, Berthon JY, Ardid D, Filaire E, Carvalho FA. Antihyperalgesic properties of gut microbiota: Parabacteroides distasonis as a new probiotic strategy to alleviate chronic abdominal pain. Pain 2024; 165:e39-e54. [PMID: 37756665 DOI: 10.1097/j.pain.0000000000003075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 08/08/2023] [Indexed: 09/29/2023]
Abstract
ABSTRACT The potential role of gut microbiota in pain modulation is arousing an emerging interest since recent years. This study investigated neuromodulatory properties of gut microbiota to identify next-generation probiotics to propose alternative therapies for visceral pain management. Neuromodulation ability of 10 bacterial strains isolated from a healthy donor was assessed both on ND7/23 immortalized cell line and primary neuronal cells from rat dorsal root ganglia. This screening highlighted the neuroinhibitory property of Parabacteroides distasonis (F1-2) strain, supported both by its intracellular content and membrane fraction, which was further investigated in visceral pain mouse models. Oral administration of F1-2 resulted in a significant decrease of colonic hypersensitivity (CHS) in dextran sulfate sodium (0.5%) model associated with low-grade inflammation and a significant decrease of CHS in Citrobacter rodentium postinfectious models. No effect of F1-2 oral administration on CHS was observed in a neonatal maternal separation stress model. Antihyperalgesic effect unlikely involved modulation of inflammatory processes or restoration of intestinal barrier. Exploration of direct dialogue mechanisms between this strain and nervous system, assessed by calcium imaging experiments, revealed that F1-2 interacts directly with nociceptors by reducing activation level on capsaicin, inflammatory soup, and bradykinin stimulations. Our study provides new insights about bacteria-host interaction and places P distasonis as a potential therapeutic strategy in the treatment of visceral pain observed in leaky gut-associated pathologies.
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Affiliation(s)
- Sandie Gervason
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Mathieu Meleine
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Stéphane Lolignier
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Maëva Meynier
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Valentine Daugey
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Aurélien Birer
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
- Centre National de Référence de la Résisitance aux Antibiotiques, Service de Bactériologie, Clermont-Ferrand, France
| | - Youssef Aissouni
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
| | | | - Denis Ardid
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Edith Filaire
- ECREIN Team, Human Nutrition Unit (UNH), UMR 1019 INRAE-UCA, University of Clermont-Auvergne, Clermont-Ferrand, France
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Ahn H, Jung EM, Cho MW, Shin MG, Choi JY, Lee GS. Sonic vibration ameliorates inflammatory diseases via the up-regulation of IL-10. Anim Cells Syst (Seoul) 2024; 28:161-170. [PMID: 38686362 PMCID: PMC11057401 DOI: 10.1080/19768354.2024.2346598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 04/18/2024] [Indexed: 05/02/2024] Open
Abstract
Sonic vibration (SV), or vibroacoustic therapy, is applied to enhance local and systemic blood circulation and alleviate pain using low-frequency sine wave vibrations. However, there is limited scientific data on the mechanisms through which the benefits are achieved. In this study, we investigated the impact of SV on inflammatory responses by assessing cytokine secretion in both in vivo and in vitro models. After inducing inflammatory responses in mice and macrophages, we studied cytokine expression and the symptoms of inflammatory diseases in response to three frequencies (14, 45, or 90 Hz) of SV stimulation at 0.5 m/s2 of amplitude. The results showed that SV at 90 Hz significantly increased interelukin-10 (IL-10) secretion in mice who were administered lipopolysaccharides (LPS) and increased the expression of IL-10 transcripts in peritoneal exudate cells and macrophages. Furthermore, SV at 90 Hz improved LPS-induced lethality and alleviated symptoms in a colitis model. In conclusion, this study scientifically proves the anti-inflammatory effects of vibration therapy through its ability to increase IL-10 expression.
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Affiliation(s)
- Huijeong Ahn
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Eui-Man Jung
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Busan, Republic of Korea
| | - Min-Woo Cho
- Evosonics Co. Ltd., Wonju, Republic of Korea
| | | | | | - Geun-Shik Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
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9
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York AG, Skadow MH, Oh J, Qu R, Zhou QD, Hsieh WY, Mowel WK, Brewer JR, Kaffe E, Williams KJ, Kluger Y, Smale ST, Crawford JM, Bensinger SJ, Flavell RA. IL-10 constrains sphingolipid metabolism to limit inflammation. Nature 2024; 627:628-635. [PMID: 38383790 PMCID: PMC10954550 DOI: 10.1038/s41586-024-07098-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024]
Abstract
Interleukin-10 (IL-10) is a key anti-inflammatory cytokine that can limit immune cell activation and cytokine production in innate immune cell types1. Loss of IL-10 signalling results in life-threatening inflammatory bowel disease in humans and mice-however, the exact mechanism by which IL-10 signalling subdues inflammation remains unclear2-5. Here we find that increased saturated very long chain (VLC) ceramides are critical for the heightened inflammatory gene expression that is a hallmark of IL-10 deficiency. Accordingly, genetic deletion of ceramide synthase 2 (encoded by Cers2), the enzyme responsible for VLC ceramide production, limited the exacerbated inflammatory gene expression programme associated with IL-10 deficiency both in vitro and in vivo. The accumulation of saturated VLC ceramides was regulated by a decrease in metabolic flux through the de novo mono-unsaturated fatty acid synthesis pathway. Restoring mono-unsaturated fatty acid availability to cells deficient in IL-10 signalling limited saturated VLC ceramide production and the associated inflammation. Mechanistically, we find that persistent inflammation mediated by VLC ceramides is largely dependent on sustained activity of REL, an immuno-modulatory transcription factor. Together, these data indicate that an IL-10-driven fatty acid desaturation programme rewires VLC ceramide accumulation and aberrant activation of REL. These studies support the idea that fatty acid homeostasis in innate immune cells serves as a key regulatory node to control pathologic inflammation and suggests that 'metabolic correction' of VLC homeostasis could be an important strategy to normalize dysregulated inflammation caused by the absence of IL-10.
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Affiliation(s)
- Autumn G York
- Department of Immunobiology, Yale University, New Haven, CT, USA.
- Howard Hughes Medical Institute, Yale University, New Haven, CT, USA.
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA.
| | - Mathias H Skadow
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Joonseok Oh
- Department of Chemistry, Yale University, New Haven, CT, USA
- Institute of Biomolecular Design and Discovery, Yale University, West Haven, CT, USA
| | - Rihao Qu
- Department of Immunobiology, Yale University, New Haven, CT, USA
- Computational Biology and Bioinformatics Program, Yale University, New Haven, CT, USA
| | - Quan D Zhou
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA
| | - Wei-Yuan Hsieh
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA
| | - Walter K Mowel
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - J Richard Brewer
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Eleanna Kaffe
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - Kevin J Williams
- Department of Biological Chemistry, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
- UCLA Lipidomics Laboratory, Los Angeles, CA, USA
| | - Yuval Kluger
- Computational Biology and Bioinformatics Program, Yale University, New Haven, CT, USA
| | - Stephen T Smale
- Howard Hughes Medical Institute, Yale University, New Haven, CT, USA
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA
| | - Jason M Crawford
- Department of Chemistry, Yale University, New Haven, CT, USA
- Institute of Biomolecular Design and Discovery, Yale University, West Haven, CT, USA
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA
| | - Steven J Bensinger
- Department of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, CA, USA.
- UCLA Lipidomics Laboratory, Los Angeles, CA, USA.
| | - Richard A Flavell
- Department of Immunobiology, Yale University, New Haven, CT, USA.
- Howard Hughes Medical Institute, Yale University, New Haven, CT, USA.
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10
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Babb C, Badji H, Bhuiyan MTR, Cornick J, Qureshi S, Sonye C, Shapiama Lopez WV, Adnan M, Atlas HE, Begum K, Brennhofer SA, Ceesay BE, Ceesay AK, Cunliffe NA, Garcia Bardales PF, Haque S, Horne B, Hossain MJ, Iqbal J, Islam MT, Islam S, Khanam F, Kotloff KL, Malemia T, Manzanares Villanueva K, Million GM, Munthali V, Ochieng JB, Ogwel B, Paredes Olortegui M, Omore R, Pavlinac PB, Platts-Mills JA, Sears KT, Secka O, Tennant SM, Peñataro Yori P, Yousafzai MT, Jere KC, Kosek MN, Munga S, Ikumapayi UN, Qadri F, Qamar FN, Rogawski McQuade ET. Evaluation of Fecal Inflammatory Biomarkers to Identify Bacterial Diarrhea Episodes: Systematic Review and Protocol for the Enterics for Global Health Shigella Surveillance Study. Open Forum Infect Dis 2024; 11:S65-S75. [PMID: 38532957 PMCID: PMC10962755 DOI: 10.1093/ofid/ofad652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024] Open
Abstract
Background The measurement of fecal inflammatory biomarkers among individuals presenting to care with diarrhea could improve the identification of bacterial diarrheal episodes that would benefit from antibiotic therapy. We reviewed prior literature in this area and describe our proposed methods to evaluate 4 biomarkers in the Enterics for Global Health (EFGH) Shigella surveillance study. Methods We systematically reviewed studies since 1970 from PubMed and Embase that assessed the diagnostic characteristics of inflammatory biomarkers to identify bacterial diarrhea episodes. We extracted sensitivity and specificity and summarized the evidence by biomarker and diarrhea etiology. In EFGH, we propose using commercial enzyme-linked immunosorbent assays to test for myeloperoxidase, calprotectin, lipocalin-2, and hemoglobin in stored whole stool samples collected within 24 hours of enrollment from participants in the Bangladesh, Kenya, Malawi, Pakistan, Peru, and The Gambia sites. We will develop clinical prediction scores that incorporate the inflammatory biomarkers and evaluate their ability to identify Shigella and other bacterial etiologies of diarrhea as determined by quantitative polymerase chain reaction (qPCR). Results Forty-nine studies that assessed fecal leukocytes (n = 39), red blood cells (n = 26), lactoferrin (n = 13), calprotectin (n = 8), and myeloperoxidase (n = 1) were included in the systematic review. Sensitivities were high for identifying Shigella, moderate for identifying any bacteria, and comparable across biomarkers. Specificities varied depending on the outcomes assessed. Prior studies were generally small, identified red and white blood cells by microscopy, and used insensitive gold standard diagnostics, such as conventional bacteriological culture for pathogen detection. Conclusions Our evaluation of inflammatory biomarkers to distinguish diarrhea etiologies as determined by qPCR will provide an important addition to the prior literature, which was likely biased by the limited sensitivity of the gold standard diagnostics used. We will determine whether point-of-care biomarker tests could be a viable strategy to inform treatment decision making and increase appropriate targeting of antibiotic treatment to bacterial diarrhea episodes.
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Affiliation(s)
- Courtney Babb
- Department of Epidemiology, Emory University, Atlanta, Georgia, USA
| | - Henry Badji
- Medical Research Council Unit The Gambia, London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Md Taufiqur Rahman Bhuiyan
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Jennifer Cornick
- Institute of Infection, Veterinary and Ecological Sciences, Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, Liverpool, United Kingdom
- Malawi Liverpool Wellcome Programme, Blantyre, Malawi
| | - Sonia Qureshi
- Department of Pediatrics and Child Health, The Aga Khan University, Karachi, Pakistan
| | - Catherine Sonye
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | | | - Mehreen Adnan
- Department of Pediatrics and Child Health, The Aga Khan University, Karachi, Pakistan
| | - Hannah E Atlas
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Kehkashan Begum
- Department of Pediatrics and Child Health, The Aga Khan University, Karachi, Pakistan
| | - Stephanie A Brennhofer
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Bubacarr E Ceesay
- Medical Research Council Unit The Gambia, London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Abdoulie K Ceesay
- Medical Research Council Unit The Gambia, London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Nigel A Cunliffe
- Institute of Infection, Veterinary and Ecological Sciences, Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, Liverpool, United Kingdom
| | | | - Shahinur Haque
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Bri’Anna Horne
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - M Jahangir Hossain
- Medical Research Council Unit The Gambia, London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Junaid Iqbal
- Department of Pediatrics and Child Health, The Aga Khan University, Karachi, Pakistan
| | - Md Taufiqul Islam
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Sadia Islam
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Farhana Khanam
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Karen L Kotloff
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | | | | | | | | | - Billy Ogwel
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | | | - Richard Omore
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Patricia B Pavlinac
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - James A Platts-Mills
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Khandra T Sears
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Ousman Secka
- Medical Research Council Unit The Gambia, London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Sharon M Tennant
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Pablo Peñataro Yori
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | | | - Khuzwayo C Jere
- Institute of Infection, Veterinary and Ecological Sciences, Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, Liverpool, United Kingdom
- Malawi Liverpool Wellcome Programme, Blantyre, Malawi
- Department of Medical Laboratory Sciences, Kamuzu University of Health Sciences, School of Life Sciences and Health Professions, Blantyre, Malawi
| | - Margaret N Kosek
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Stephen Munga
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Usman N Ikumapayi
- Medical Research Council Unit The Gambia, London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Firdausi Qadri
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Farah Naz Qamar
- Department of Pediatrics and Child Health, The Aga Khan University, Karachi, Pakistan
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11
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Pabois J, Durand T, Le Berre C, Filippone RT, Noël T, Durieu E, Bossard C, Bruneau S, Rolli-Derkinderen M, Nurgali K, Neunlist M, Bourreille A, Neveu I, Naveilhan P. Role of ICAM-1 in the Adhesion of T Cells to Enteric Glia: Perspectives in the Formation of Plexitis in Crohn's Disease. Cell Mol Gastroenterol Hepatol 2024; 18:133-153. [PMID: 38428588 PMCID: PMC11127036 DOI: 10.1016/j.jcmgh.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND & AIMS The presence of myenteric plexitis in the proximal resection margins is a predictive factor of early postoperative recurrence in Crohn's disease. To decipher the mechanisms leading to their formation, T-cell interactions with enteric neural cells were studied in vitro and in vivo. METHODS T cells close to myenteric neural cells were retrospectively quantified in ileocolonic resections from 9 control subjects with cancer and 20 patients with Crohn's disease. The mechanisms involved in T-cell adhesion were then investigated in co-cultures of T lymphocytes with enteric glial cells (glia). Finally, the implication of adhesion molecules in the development of plexitis and colitis was studied in vitro but also in vivo in Winnie mice. RESULTS The mean number of T cells close to glia, but not neurons, was significantly higher in the myenteric ganglia of relapsing patients with Crohn's disease (2.42 ± 0.5) as compared with controls (0.36 ± 0.08, P = .0007). Co-culture experiments showed that exposure to proinflammatory cytokines enhanced T-cell adhesion to glia and increased intercellular adhesion molecule-1 (ICAM-1) expression in glia. We next demonstrated that T-cell adhesion to glia was inhibited by an anti-ICAM-1 antibody. Finally, using the Winnie mouse model of colitis, we showed that the blockage of ICAM-1/lymphocyte function-associated antigen-1 (LFA-1) with lifitegrast reduced colitis severity and decreased T-cell infiltration in the myenteric plexus. CONCLUSIONS Our present work argues for a role of glia-T-cell interaction in the development of myenteric plexitis through the adhesion molecules ICAM-1/LFA-1 and suggests that deciphering the functional consequences of glia-T-cell interaction is important to understand the mechanisms implicated in the development and recurrence of Crohn's disease.
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Affiliation(s)
- Julie Pabois
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Tony Durand
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Catherine Le Berre
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | | | - Théo Noël
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Emilie Durieu
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Céline Bossard
- Service d'Anatomie et Cytologie Pathologique, Inserm, CRCINA, Université de Nantes, CHU Nantes, Nantes, France
| | - Sarah Bruneau
- CHU Nantes, Nantes Université, INSERM, Center for Research in Transplantation and Translational Immunology, UMR 1064, Nantes, France
| | - Malvyne Rolli-Derkinderen
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Kulmira Nurgali
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia; Department of Medicine Western Health, The University of Melbourne, Melbourne, Australia; Regenerative Medicine and Stem Cell Program, Australian Institute for Musculoskeletal Science (AIMSS), Melbourne, Australia
| | - Michel Neunlist
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Arnaud Bourreille
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Isabelle Neveu
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Philippe Naveilhan
- Nantes Université, CHU Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France.
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12
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Belei O, Basaca DG, Olariu L, Pantea M, Bozgan D, Nanu A, Sîrbu I, Mărginean O, Enătescu I. The Interaction between Stress and Inflammatory Bowel Disease in Pediatric and Adult Patients. J Clin Med 2024; 13:1361. [PMID: 38592680 PMCID: PMC10932475 DOI: 10.3390/jcm13051361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 04/10/2024] Open
Abstract
Background: Inflammatory bowel diseases (IBDs) have seen an exponential increase in incidence, particularly among pediatric patients. Psychological stress is a significant risk factor influencing the disease course. This review assesses the interaction between stress and disease progression, focusing on articles that quantified inflammatory markers in IBD patients exposed to varying degrees of psychological stress. Methods: A systematic narrative literature review was conducted, focusing on the interaction between IBD and stress among adult and pediatric patients, as well as animal subjects. The research involved searching PubMed, Scopus, Medline, and Cochrane Library databases from 2000 to December 2023. Results: The interplay between the intestinal immunity response, the nervous system, and psychological disorders, known as the gut-brain axis, plays a major role in IBD pathophysiology. Various types of stressors alter gut mucosal integrity through different pathways, increasing gut mucosa permeability and promoting bacterial translocation. A denser microbial load in the gut wall emphasizes cytokine production, worsening the disease course. The risk of developing depression and anxiety is higher in IBD patients compared with the general population, and stress is a significant trigger for inducing acute flares of the disease. Conclusions: Further large studies should be conducted to assess the relationship between stressors, psychological disorders, and their impact on the course of IBD. Clinicians involved in the medical care of IBD patients should aim to implement stress reduction practices in addition to pharmacological therapies.
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Affiliation(s)
- Oana Belei
- First Pediatric Clinic, Disturbances of Growth and Development on Children Research Center, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (O.B.); (O.M.)
- Department of Pediatrics, First Pediatric Clinic, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania;
| | - Diana-Georgiana Basaca
- First Pediatric Clinic, Disturbances of Growth and Development on Children Research Center, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (O.B.); (O.M.)
- Department of Pediatrics, First Pediatric Clinic, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania;
| | - Laura Olariu
- Department of Pediatrics, First Pediatric Clinic, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania;
| | - Manuela Pantea
- Twelfth Department, Neonatology Clinic, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (M.P.); (I.E.)
| | - Daiana Bozgan
- Clinic of Neonatology, “Pius Brânzeu” County Emergency Clinical Hospital, 300723 Timișoara, Romania;
| | - Anda Nanu
- Third Pediatric Clinic, “Louis Țurcanu” Emergency Children Hospital, 300011 Timișoara, Romania; (A.N.); (I.S.)
| | - Iuliana Sîrbu
- Third Pediatric Clinic, “Louis Țurcanu” Emergency Children Hospital, 300011 Timișoara, Romania; (A.N.); (I.S.)
| | - Otilia Mărginean
- First Pediatric Clinic, Disturbances of Growth and Development on Children Research Center, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (O.B.); (O.M.)
- Department of Pediatrics, First Pediatric Clinic, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania;
| | - Ileana Enătescu
- Twelfth Department, Neonatology Clinic, “Victor Babeș” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (M.P.); (I.E.)
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13
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Randolph G, Erlich E, Czepielewski R, Field R, Dunning T, Saleh L, Hoofnagle M, Tumanov A, Guilak F, Brestoff J. Distinct roles for LTalpha3 and LTalpha1beta2 produced by B cells contribute to their multi-faceted impact on ileitis. RESEARCH SQUARE 2024:rs.3.rs-3962916. [PMID: 38464070 PMCID: PMC10925464 DOI: 10.21203/rs.3.rs-3962916/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
B lymphocytes may facilitate chronic inflammation through antibody production or secretion of cytokines, including lymphotoxin (LT)-a 1 b 2 associated with development of lymphoid tissue. Tertiary lymphoid structures (TLS) characterize human and murine ileitis by suppressing outflow from the ileum. Here, we show that B cell-derived secretory IgA protected against ileal inflammation, whereas B cell-derived LTa guarded against ileitis-associated loss of body mass. We initially hypothesized this protection resulted from formation of TLS that suppressed lymphatic outflow and thereby restrained systemic spread of inflammatory signals, but B cell-selective deletion of LTb did not exacerbate weight loss, despite eliminating TLS. Instead, weight loss driven by the cachectic cytokine TNF was exacerbated when LTa 3 , another ligand for TNF receptors, was selectively neutralized. Thus, B cells' multi-faceted impact on ileitis includes generating secretory IgA, expressing LTa 1 b 2 to drive formation of TLS, and producing LTa 3 for protecting against weight loss in the presence of TNF.
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14
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Vălean D, Zaharie R, Țaulean R, Usatiuc L, Zaharie F. Recent Trends in Non-Invasive Methods of Diagnosis and Evaluation of Inflammatory Bowel Disease: A Short Review. Int J Mol Sci 2024; 25:2077. [PMID: 38396754 PMCID: PMC10889152 DOI: 10.3390/ijms25042077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Inflammatory bowel diseases are a conglomerate of disorders causing inflammation of the gastrointestinal tract, which have gained a significant increase in prevalence in the 21st century. As they present a challenge in the terms of diagnosis as well as treatment, IBDs can present an overwhelming impact on the individual and can take a toll on healthcare costs. Thus, a quick and precise diagnosis is required in order to prevent the high number of complications that can arise from a late diagnosis as well as a misdiagnosis. Although endoscopy remains the primary method of evaluation for IBD, recent trends have highlighted various non-invasive methods of diagnosis as well as reevaluating previous ones. This review focused on the current non-invasive methods in the diagnosis of IBD, exploring their possible implementation in the near future, with the goal of achieving earlier, feasible, and cheap methods of diagnosis as well as prognosis in IBD.
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Affiliation(s)
- Dan Vălean
- Regional Institute of Gastroenterology and Hepatology “Octavian Fodor”, 400162 Cluj-Napoca, Romania; (D.V.); (R.Ț.); (F.Z.)
- Department of General Surgery, University of Medicine and Pharmacy “Iuliu Hațieganu”, 400347 Cluj-Napoca, Romania
| | - Roxana Zaharie
- Regional Institute of Gastroenterology and Hepatology “Octavian Fodor”, 400162 Cluj-Napoca, Romania; (D.V.); (R.Ț.); (F.Z.)
- Department of Gastroenterology, University of Medicine and Pharmacy “Iuliu Hațieganu”, 400347 Cluj-Napoca, Romania
| | - Roman Țaulean
- Regional Institute of Gastroenterology and Hepatology “Octavian Fodor”, 400162 Cluj-Napoca, Romania; (D.V.); (R.Ț.); (F.Z.)
- Department of General Surgery, University of Medicine and Pharmacy “Iuliu Hațieganu”, 400347 Cluj-Napoca, Romania
| | - Lia Usatiuc
- Department of Patophysiology, University of Medicine and Pharmacy “Iuliu Hațieganu”, 400347 Cluj-Napoca, Romania;
| | - Florin Zaharie
- Regional Institute of Gastroenterology and Hepatology “Octavian Fodor”, 400162 Cluj-Napoca, Romania; (D.V.); (R.Ț.); (F.Z.)
- Department of General Surgery, University of Medicine and Pharmacy “Iuliu Hațieganu”, 400347 Cluj-Napoca, Romania
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15
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Sepúlveda-Alfaro J, Catalán EA, Vallejos OP, Ramos-Tapia I, Madrid-Muñoz C, Mendoza-León MJ, Suazo ID, Rivera-Asin E, Silva PH, Alvarez-Mardones O, Castillo-Godoy DP, Riedel CA, Schinnerling K, Ugalde JA, Soto JA, Bueno SM, Kalergis AM, Melo-Gonzalez F. Human metapneumovirus respiratory infection affects both innate and adaptive intestinal immunity. Front Immunol 2024; 15:1330209. [PMID: 38404579 PMCID: PMC10884822 DOI: 10.3389/fimmu.2024.1330209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/15/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction Respiratory infections are one of the leading causes of morbidity and mortality worldwide, mainly in children, immunocompromised people, and the elderly. Several respiratory viruses can induce intestinal inflammation and alterations in intestinal microbiota composition. Human metapneumovirus (HMPV) is one of the major respiratory viruses contributing to infant mortality in children under 5 years of age worldwide, and the effect of this infection at the gut level has not been studied. Methods Here, we evaluated the distal effects of HMPV infection on intestinal microbiota and inflammation in a murine model, analyzing several post-infection times (days 1, 3, and 5). Six to eight-week-old C57BL/6 mice were infected intranasally with HMPV, and mice inoculated with a non-infectious supernatant (Mock) were used as a control group. Results We did not detect HMPV viral load in the intestine, but we observed significant changes in the transcription of IFN-γ in the colon, analyzed by qPCR, at day 1 post-infection as compared to the control group. Furthermore, we analyzed the frequencies of different innate and adaptive immune cells in the colonic lamina propria, using flow cytometry. The frequency of monocyte populations was altered in the colon of HMPV -infected mice at days 1 and 3, with no significant difference from control mice at day 5 post-infection. Moreover, colonic CD8+ T cells and memory precursor effector CD8+ T cells were significantly increased in HMPV-infected mice at day 5, suggesting that HMPV may also alter intestinal adaptive immunity. Additionally, we did not find alterations in antimicrobial peptide expression, the frequency of colonic IgA+ plasma cells, and levels of fecal IgA. Some minor alterations in the fecal microbiota composition of HMPV -infected mice were detected using 16s rRNA sequencing. However, no significant differences were found in β-diversity and relative abundance at the genus level. Discussion To our knowledge, this is the first report describing the alterations in intestinal immunity following respiratory infection with HMPV infection. These effects do not seem to be mediated by direct viral infection in the intestinal tract. Our results indicate that HMPV can affect colonic innate and adaptive immunity but does not significantly alter the microbiota composition, and further research is required to understand the mechanisms inducing these distal effects in the intestine.
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Affiliation(s)
- Javiera Sepúlveda-Alfaro
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Eduardo A. Catalán
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Omar P. Vallejos
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ignacio Ramos-Tapia
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | | | - María J. Mendoza-León
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Isidora D. Suazo
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Elizabeth Rivera-Asin
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Pedro H. Silva
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Oscar Alvarez-Mardones
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | | | - Claudia A. Riedel
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | | | - Juan A. Ugalde
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Jorge A. Soto
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Susan M. Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe Melo-Gonzalez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
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Duckworth LA, Sutton KA, Shaikh N, Wang J, Hall-Moore C, Holtz LR, Tarr PI, Rubenstein RC. Quantification of Enteric Dysfunction in Cystic Fibrosis: Inter- and Intraindividual Variability. J Pediatr 2024; 265:113800. [PMID: 37866678 PMCID: PMC10869934 DOI: 10.1016/j.jpeds.2023.113800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/18/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
OBJECTIVES To test the utility of various biomarkers as indicators of gut dysfunction in cystic fibrosis (CF) and determine whether intraindividual variations in these measures are repeatable over short intervals and whether interindividual variations correlate with clinical outcomes. STUDY DESIGN We performed a cross-sectional, limited longitudinal study of children with CF aged 1-21 years who provided blood and stool samples at 2 or 3 visits, 2 weeks and 3 months apart, which were assayed for markers of intestinal inflammation (fecal calprotectin [fCal], lipocalin-2 [fLcn2], neopterin), and permeability (plasma lipopolysaccharide [LPS] antibodies, LPS-binding protein) by enzyme immunoassays. Control specimens were obtained from children without CF who had undergone esophagogastroduodenoscopy and had no evidence of gut inflammation. RESULTS Twenty-six of 29 participants with CF completed the study. Sixty-nine stools (57 case/12 control) and 76 plasmas (60 case/16 control) were analyzed. LPS antibody had reliable intraindividual stability. fCal, fLcn2, and neopterin were significantly greater in CF than in control samples. fCal was negatively correlated with 3-month interval change (Δ) in weight-for-age z-score, body mass index/weight-for-length z-score, and forced expiratory volume in 1 second. fLcn2 was negatively correlated with FEV1 but not with anthropometrics. No marker correlated with Δbody mass index/weight-for-length z-score or ΔFEV1. CONCLUSIONS fLcn2 is elevated in people with CF and might predict worse interval pulmonary function. Expanded studies are warranted to test if fLcn2 correlates with changes in additional outcomes.
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Affiliation(s)
- Laura A Duckworth
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University in St Louis, St Louis, MO.
| | - Kimberly A Sutton
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University in St Louis, St Louis, MO
| | - Nurmohammad Shaikh
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University in St Louis, St Louis, MO
| | - Jinli Wang
- Center for Biostatistics and Data Science, Washington University in St Louis, St Louis, MO
| | - Carla Hall-Moore
- Center for Biostatistics and Data Science, Washington University in St Louis, St Louis, MO
| | - Lori R Holtz
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University in St Louis, St Louis, MO
| | - Phillip I Tarr
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University in St Louis, St Louis, MO
| | - Ronald C Rubenstein
- Division of Allergy and Pulmonary Medicine, Department of Pediatrics, Washington University in St Louis, St Louis, MO
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Lamas B, Martins Breyner N, Malaisé Y, Wulczynski M, Galipeau HJ, Gaultier E, Cartier C, Verdu EF, Houdeau E. Evaluating the Effects of Chronic Oral Exposure to the Food Additive Silicon Dioxide on Oral Tolerance Induction and Food Sensitivities in Mice. ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:27007. [PMID: 38380914 PMCID: PMC10880545 DOI: 10.1289/ehp12758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 01/08/2024] [Accepted: 01/17/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND The increasing prevalence of food sensitivities has been attributed to changes in gut microenvironment; however, ubiquitous environmental triggers such as inorganic nanoparticles (NPs) used as food additives have not been thoroughly investigated. OBJECTIVES We explored the impact of the NP-structured food-grade silicon dioxide (f g - SiO 2 ) on intestinal immune response involved in oral tolerance (OT) induction and evaluated the consequences of oral chronic exposure to this food-additive using a mouse model of OT to ovalbumin (OVA) and on gluten immunopathology in mice expressing the celiac disease risk gene, HLA-DQ8. METHODS Viability, proliferation, and cytokine production of mesenteric lymph node (MLN) cells were evaluated after exposure to f g - SiO 2 . C57BL/6J mice and a mouse model of OT to OVA were orally exposed to f g - SiO 2 or vehicle for 60 d. Fecal lipocalin-2 (Lcn-2), anti-OVA IgG, cytokine production, and immune cell populations were analyzed. Nonobese diabetic (NOD) mice expressing HLA-DQ8 (NOD/DQ8), exposed to f g - SiO 2 or vehicle, were immunized with gluten and immunopathology was investigated. RESULTS MLN cells exposed to f g - SiO 2 presented less proliferative T cells and lower secretion of interleukin 10 (IL-10) and transforming growth factor beta (TGF- β ) by T regulatory and CD 45 + CD 11 b + CD 103 + cells compared to control, two factors mediating OT. Mice given f g - SiO 2 exhibited intestinal Lcn-2 level and interferon gamma (IFN- γ ) secretion, showing inflammation and less production of IL-10 and TGF- β . These effects were also observed in OVA-tolerized mice exposed to f g - SiO 2 , in addition to a breakdown of OT and a lower intestinal frequency of T cells. In NOD/DQ8 mice immunized with gluten, the villus-to-crypt ratio was decreased while the CD 3 + intraepithelial lymphocyte counts and the Th1 inflammatory response were aggravated after f g - SiO 2 treatment. DISCUSSION Our results suggest that chronic oral exposure to f g - SiO 2 blocked oral tolerance induction to OVA, and worsened gluten-induced immunopathology in NOD/DQ8 mice. The results should prompt investigation on the link between SiO 2 exposure and food sensitivities in humans. https://doi.org/10.1289/EHP12758.
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Affiliation(s)
- Bruno Lamas
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, INRAE/ENVT/Paul Sabatier University, Toulouse, France
| | - Natalia Martins Breyner
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, INRAE/ENVT/Paul Sabatier University, Toulouse, France
| | - Yann Malaisé
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, INRAE/ENVT/Paul Sabatier University, Toulouse, France
| | - Mark Wulczynski
- Farncombe Family Digestive Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Heather J. Galipeau
- Farncombe Family Digestive Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Eric Gaultier
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, INRAE/ENVT/Paul Sabatier University, Toulouse, France
| | - Christel Cartier
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, INRAE/ENVT/Paul Sabatier University, Toulouse, France
| | - Elena F. Verdu
- Farncombe Family Digestive Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Eric Houdeau
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, INRAE/ENVT/Paul Sabatier University, Toulouse, France
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Capra BT, Hudson S, Helder M, Laskaridou E, Johnson AL, Gilmore C, Marinik E, Hedrick VE, Savla J, David LA, Davy KP, Davy BM. Ultra-processed food intake, gut microbiome, and glucose homeostasis in mid-life adults: Background, design, and methods of a controlled feeding trial. Contemp Clin Trials 2024; 137:107427. [PMID: 38184104 PMCID: PMC10922925 DOI: 10.1016/j.cct.2024.107427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/06/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
BACKGROUND Aging is associated with gut dysbiosis, low-grade inflammation, and increased risk of type 2 diabetes (T2D). Prediabetes, which increases T2D and cardiovascular disease risk, is present in 45-50% of mid-life adults. The gut microbiota may link ultra-processed food (UPF) with inflammation and T2D risk. METHODS Following a 2-week standardized lead-in diet (59% UPF), adults aged 40-65 years will be randomly assigned to a 6-week diet emphasizing either UPF (81% total energy) or non-UPF (0% total energy). Measurements of insulin sensitivity, 24-h and postprandial glycemic control, gut microbiota composition/function, fecal short chain fatty acids, intestinal inflammation, inflammatory cytokines, and vascular function will be made before and following the 6-week intervention period. Prior to recruitment, menus were developed in order to match UPF and non-UPF conditions based upon relevant dietary factors. Menus were evaluated for palatability and costs, and the commercial additive content of study diets was quantified to explore potential links with outcomes. RESULTS Overall diet palatability ratings were similar (UPF = 7.6 ± 1.0; Non-UPF = 6.8 ± 1.5; Like Moderately = 7, Like Very Much = 8). Cost analysis (food + labor) of the 2000 kcal menu (7-d average) revealed lower costs for UPF compared to non-UPF diets ($20.97/d and $40.23/d, respectively). Additive exposure assessment of the 2000 kcal UPF diet indicated that soy lecithin (16×/week), citric acid (13×/week), sorbic acid (13×/week), and sodium citrate (12×/week) were the most frequently consumed additives. CONCLUSIONS Whether UPF consumption impairs glucose homeostasis in mid-life adults is unknown. Findings will address this research gap and contribute information on how UPF consumption may influence T2D development.
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Affiliation(s)
- Bailey T Capra
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America; Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America.
| | - Summer Hudson
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America
| | - McKenna Helder
- Department of Food Science and Technology, Virginia Tech,United States of America
| | - Eleni Laskaridou
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America; Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America
| | - Aubrey L Johnson
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America; Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America
| | - Carson Gilmore
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America
| | - Elaina Marinik
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America; Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America
| | - Valisa E Hedrick
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America; Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America
| | - Jyoti Savla
- Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America; Center for Gerontology, Virginia Tech, United States of America
| | - Lawrence A David
- Department of Molecular Genetics & Microbiology, Duke University, United States of America; Duke Microbiome Center, Duke University, United States of America
| | - Kevin P Davy
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America; Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America
| | - Brenda M Davy
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, 229 Wallace Hall, Blacksburg, VA 24061, United States of America; Virginia Tech Translational Obesity Research Interdisciplinary Graduate Education Program, United States of America
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Rahman AA, Stavely R, Pan W, Ott L, Ohishi K, Ohkura T, Han C, Hotta R, Goldstein AM. Optogenetic Activation of Cholinergic Enteric Neurons Reduces Inflammation in Experimental Colitis. Cell Mol Gastroenterol Hepatol 2024; 17:907-921. [PMID: 38272444 PMCID: PMC11026705 DOI: 10.1016/j.jcmgh.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
BACKGROUND & AIMS Intestinal inflammation is associated with loss of enteric cholinergic neurons. Given the systemic anti-inflammatory role of cholinergic innervation, we hypothesized that enteric cholinergic neurons similarly possess anti-inflammatory properties and may represent a novel target to treat inflammatory bowel disease. METHODS Mice were fed 2.5% dextran sodium sulfate (DSS) for 7 days to induce colitis. Cholinergic enteric neurons, which express choline acetyltransferase (ChAT), were focally ablated in the midcolon of ChAT::Cre;R26-iDTR mice by local injection of diphtheria toxin before colitis induction. Activation of enteric cholinergic neurons was achieved using ChAT::Cre;R26-ChR2 mice, in which ChAT+ neurons express channelrhodopsin-2, with daily blue light stimulation delivered via an intracolonic probe during the 7 days of DSS treatment. Colitis severity, ENS structure, and smooth muscle contractility were assessed by histology, immunohistochemistry, quantitative polymerase chain reaction, organ bath, and electromyography. In vitro studies assessed the anti-inflammatory role of enteric cholinergic neurons on cultured muscularis macrophages. RESULTS Ablation of ChAT+ neurons in DSS-treated mice exacerbated colitis, as measured by weight loss, colon shortening, histologic inflammation, and CD45+ cell infiltration, and led to colonic dysmotility. Conversely, optogenetic activation of enteric cholinergic neurons improved colitis, preserved smooth muscle contractility, protected against loss of cholinergic neurons, and reduced proinflammatory cytokine production. Both acetylcholine and optogenetic cholinergic neuron activation in vitro reduced proinflammatory cytokine expression in lipopolysaccharide-stimulated muscularis macrophages. CONCLUSIONS These findings show that enteric cholinergic neurons have an anti-inflammatory role in the colon and should be explored as a potential inflammatory bowel disease treatment.
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Affiliation(s)
- Ahmed A Rahman
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Rhian Stavely
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Weikang Pan
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Leah Ott
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Kensuke Ohishi
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; Drug Discovery Laboratory, Wakunaga Pharmaceuticals Company, Ltd, Akitakata, Hiroshima, Japan
| | - Takahiro Ohkura
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Christopher Han
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Ryo Hotta
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Allan M Goldstein
- Department of Pediatric Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
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Gray SM, Moss AD, Herzog JW, Kashiwagi S, Liu B, Young JB, Sun S, Bhatt A, Fodor AA, Balfour Sartor R. Mouse Adaptation of Human Inflammatory Bowel Diseases Microbiota Enhances Colonization Efficiency and Alters Microbiome Aggressiveness Depending on Recipient Colonic Inflammatory Environment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.23.576862. [PMID: 38328082 PMCID: PMC10849574 DOI: 10.1101/2024.01.23.576862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Understanding the cause vs consequence relationship of gut inflammation and microbial dysbiosis in inflammatory bowel diseases (IBD) requires a reproducible mouse model of human-microbiota-driven experimental colitis. Our study demonstrated that human fecal microbiota transplant (FMT) transfer efficiency is an underappreciated source of experimental variability in human microbiota associated (HMA) mice. Pooled human IBD patient fecal microbiota engrafted germ-free (GF) mice with low amplicon sequence variant (ASV)-level transfer efficiency, resulting in high recipient-to-recipient variation of microbiota composition and colitis severity in HMA Il-10-/- mice. In contrast, mouse-to-mouse transfer of mouse-adapted human IBD patient microbiota transferred with high efficiency and low compositional variability resulting in highly consistent and reproducible colitis phenotypes in recipient Il-10-/- mice. Human-to-mouse FMT caused a population bottleneck with reassembly of microbiota composition that was host inflammatory environment specific. Mouse-adaptation in the inflamed Il-10-/- host reassembled a more aggressive microbiota that induced more severe colitis in serial transplant to Il-10-/- mice than the distinct microbiota reassembled in non-inflamed WT hosts. Our findings support a model of IBD pathogenesis in which host inflammation promotes aggressive resident bacteria, which further drives a feed-forward process of dysbiosis exacerbated gut inflammation. This model implies that effective management of IBD requires treating both the dysregulated host immune response and aggressive inflammation-driven microbiota. We propose that our mouse-adapted human microbiota model is an optimized, reproducible, and rigorous system to study human microbiome-driven disease phenotypes, which may be generalized to mouse models of other human microbiota-modulated diseases, including metabolic syndrome/obesity, diabetes, autoimmune diseases, and cancer.
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Affiliation(s)
- Simon M. Gray
- These authors contributed equally to this work
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Anh D. Moss
- These authors contributed equally to this work
- Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Jeremy W. Herzog
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Saori Kashiwagi
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Bo Liu
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jacqueline B. Young
- Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Shan Sun
- Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Aadra Bhatt
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Anthony A. Fodor
- These authors contributed equally to this work
- Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - R. Balfour Sartor
- These authors contributed equally to this work
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- National Gnotobiotic Rodent Resource Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Yang J, Lin J, Gu T, Sun Q, Xu W, Peng Y. Chicoric Acid Effectively Mitigated Dextran Sulfate Sodium (DSS)-Induced Colitis in BALB/c Mice by Modulating the Gut Microbiota and Fecal Metabolites. Int J Mol Sci 2024; 25:841. [PMID: 38255916 PMCID: PMC10815209 DOI: 10.3390/ijms25020841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Chicoric acid (CA) has been reported to exhibit biological activities; it remains unclear, however, whether CA could regulate colitis via modulation of the gut microbiota and metabolites. This study aimed to assess CA's impact on dextran sulfate sodium (DSS)-induced colitis, the gut microbiota, and metabolites. Mice were induced with 2.5% DSS to develop colitis over a 7-day period. CA was administered intragastrically one week prior to DSS treatment and continued for 14 days. The microbial composition in the stool was determined using 16S rRNA sequencing, while non-targeted metabolomics was employed to analyze the metabolic profiles of each mouse group. The results show that CA effectively alleviated colitis, as evidenced by an increased colon length, lowered disease activity index (DAI) and histological scores, and decreased tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) expression levels. CA intervention restored the structure of gut microbiota. Specifically, it decreased the abundance of Bacteroidetes and Cyanobacteria at the phylum level and Bacteroides, Rosiarcus, and unclassified Xanthobacteraceae at the genus level, and increased the abundance of unclassified Lachnospiraceae at the genus level. Metabolomic analysis revealed that CA supplementation reversed the up-regulation of asymmetric dimethylarginine, N-glycolylneuraminic acid, and N-acetylneuraminic acid, as well as the down-regulation of phloroglucinol, thiamine, 4-methyl-5-thiazoleethanol, lithocholic acid, and oxymatrine induced by DSS. Our current research provides scientific evidence for developing CA into an anti-colitis functional food ingredient. Further clinical trials are warranted to elucidate the efficacy and mechanism of CA in treating human inflammatory bowel disease (IBD).
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Affiliation(s)
- Jiani Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (J.Y.); (T.G.)
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Jie Lin
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (J.L.); (Q.S.)
| | - Ting Gu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (J.Y.); (T.G.)
| | - Quancai Sun
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (J.L.); (Q.S.)
| | - Weidong Xu
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China
| | - Ye Peng
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
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Delaroque C, Chassaing B. Dietary emulsifier consumption accelerates type 1 diabetes development in NOD mice. NPJ Biofilms Microbiomes 2024; 10:1. [PMID: 38182615 PMCID: PMC10770373 DOI: 10.1038/s41522-023-00475-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 12/15/2023] [Indexed: 01/07/2024] Open
Abstract
The rapidly increasing prevalence of type 1 diabetes (T1D) underscores the role of environmental (i.e. non-genetic) determinants of T1D development. Such factors include industrialized diets as well as the intestinal microbiota with which they interact. One component of industrialized diets that deleteriously impact gut microbiota is dietary emulsifiers, which perturb intestinal microbiota to encroach upon their host promoting chronic low-grade intestinal inflammation and metabolic syndrome. Hence, we investigated whether 2 dietary emulsifiers, carboxymethylcellulose (CMC) and polysorbate-80 (P80), might influence the development of T1D in NOD mice, which spontaneously develop this disorder. We observed that chronic emulsifier exposure accelerated T1D development in NOD mice, which was associated with increased insulin autoantibody levels. Such accelerated T1D development was accompanied by compositional and functional alterations of the intestinal microbiota as well as low-grade intestinal inflammation. Moreover, machine learning found that the severity of emulsifier-induced microbiota disruption had partial power to predict subsequent disease development, suggesting that complex interactions occur between the host, dietary factors, and the intestinal microbiota. Thus, perturbation of host-microbiota homeostasis by dietary emulsifiers may have contributed to the post-mid-20th-century increase in T1D.
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Affiliation(s)
- Clara Delaroque
- INSERM U1016, team "Mucosal microbiota in chronic inflammatory diseases", CNRS UMR 8104, Université Paris Cité, Paris, France
| | - Benoit Chassaing
- INSERM U1016, team "Mucosal microbiota in chronic inflammatory diseases", CNRS UMR 8104, Université Paris Cité, Paris, France.
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23
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Lo BC, Kryczek I, Yu J, Vatan L, Caruso R, Matsumoto M, Sato Y, Shaw MH, Inohara N, Xie Y, Lei YL, Zou W, Núñez G. Microbiota-dependent activation of CD4 + T cells induces CTLA-4 blockade-associated colitis via Fcγ receptors. Science 2024; 383:62-70. [PMID: 38175892 DOI: 10.1126/science.adh8342] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 11/17/2023] [Indexed: 01/06/2024]
Abstract
Immune checkpoint inhibitors can stimulate antitumor immunity but can also induce toxicities termed immune-related adverse events (irAEs). Colitis is a common and severe irAE that can lead to treatment discontinuation. Mechanistic understanding of gut irAEs has been hampered because robust colitis is not observed in laboratory mice treated with checkpoint inhibitors. We report here that this limitation can be overcome by using mice harboring the microbiota of wild-caught mice, which develop overt colitis following treatment with anti-CTLA-4 antibodies. Intestinal inflammation is driven by unrestrained activation of IFNγ-producing CD4+ T cells and depletion of peripherally induced regulatory T cells through Fcγ receptor signaling. Accordingly, anti-CTLA-4 nanobodies that lack an Fc domain can promote antitumor responses without triggering colitis. This work suggests a strategy for mitigating gut irAEs while preserving antitumor stimulating effects of CTLA-4 blockade.
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Affiliation(s)
- Bernard C Lo
- Department of Pathology and Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ilona Kryczek
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
- Center of Excellence for Cancer Immunology and Immunotherapy, Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jiali Yu
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
- Center of Excellence for Cancer Immunology and Immunotherapy, Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Linda Vatan
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
- Center of Excellence for Cancer Immunology and Immunotherapy, Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Roberta Caruso
- Department of Pathology and Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Masanori Matsumoto
- Department of Pathology and Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yosuke Sato
- Takeda Pharmaceuticals International Co., Cambridge, MA 02139 USA
| | - Michael H Shaw
- Takeda Pharmaceuticals International Co., Cambridge, MA 02139 USA
| | - Naohiro Inohara
- Department of Pathology and Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yuying Xie
- Department of Computational Mathematics, Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Yu Leo Lei
- Department of Periodontics and Oral Medicine, Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48104, USA
| | - Weiping Zou
- Department of Pathology and Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
- Center of Excellence for Cancer Immunology and Immunotherapy, Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Gabriel Núñez
- Department of Pathology and Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
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24
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Rivera JC, Opazo MC, Hernández-Armengol R, Álvarez O, Mendoza-León MJ, Caamaño E, Gatica S, Bohmwald K, Bueno SM, González PA, Neunlist M, Boudin H, Kalergis AM, Riedel CA. Transient gestational hypothyroxinemia accelerates and enhances ulcerative colitis-like disorder in the male offspring. Front Endocrinol (Lausanne) 2024; 14:1269121. [PMID: 38239991 PMCID: PMC10794346 DOI: 10.3389/fendo.2023.1269121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 11/06/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction Gestational hypothyroxinemia (HTX) is a condition that occurs frequently at the beginning of pregnancy, and it correlates with cognitive impairment, autism, and attentional deficit in the offspring. Evidence in animal models suggests that gestational HTX can increase the susceptibility of the offspring to develop strong inflammation in immune-mediated inflammatory diseases. Ulcerative colitis (UC) is a frequent inflammatory bowel disease with unknown causes. Therefore, the intensity of ulcerative colitis-like disorder (UCLD) and the cellular and molecular factors involved in proinflammatory or anti-inflammatory responses were analyzed in the offspring gestated in HTX (HTX-offspring) and compared with the offspring gestated in euthyroidism (Control-offspring). Methods Gestational HTX was induced by the administration of 2-mercapto-1-methylimidazole in drinking water to pregnant mice during E10-E14. The HTX-offspring were induced with UCLD by the acute administration of dextran sodium sulfate (DSS). The score of UCLD symptomatology was registered every day, and colon histopathology, immune cells, and molecular factors involved in the inflammatory or anti-inflammatory response were analyzed on day 6 of DSS treatment. Results The HTX-offspring displayed earlier UCLD pathological symptoms compared with the Control-offspring. After 6 days of DSS treatment, the HTX-offspring almost doubled the score of the Control-offspring. The histopathological analyses of the colon samples showed signs of inflammation at the distal and medial colon for both the HTX-offspring and Control-offspring. However, significantly more inflammatory features were detected in the proximal colon of the HTX-offspring induced with UCLD compared with the Control-offspring induced with UCLD. Significantly reduced mRNA contents encoding for protective molecules like glutamate-cysteine ligase catalytic subunit (GCLC) and mucin-2 (MUC-2) were found in the colon of the HTX-offspring as compared with the Control-offspring. Higher percentages of Th17 lymphocytes were detected in the colon tissues of the HTX-offspring induced or not with UCLD as compared with the Control-offspring. Discussion Gestational HTX accelerates the onset and increases the intensity of UCLD in the offspring. The low expression of MUC-2 and GCLC together with high levels of Th17 Lymphocytes in the colon tissue suggests that the HTX-offspring has molecular and cellular features that favor inflammation and tissue damage. These results are important evidence to be aware of the impact of gestational HTX as a risk factor for UCLD development in offspring.
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Affiliation(s)
- Juan Carlos Rivera
- Laboratorio de Endocrino-inmunología, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ma. Cecilia Opazo
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Facultad de Medicina Veterinaria y Agronomía, Instituto de Ciencias Naturales, Universidad de las Américas, Santiago, Chile
| | - Rosario Hernández-Armengol
- Laboratorio de Endocrino-inmunología, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Oscar Álvarez
- Laboratorio de Endocrino-inmunología, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - María José Mendoza-León
- Laboratorio de Endocrino-inmunología, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Esteban Caamaño
- Laboratorio de Endocrino-inmunología, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sebastian Gatica
- Laboratorio de Endocrino-inmunología, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Karen Bohmwald
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile
| | - Susan M. Bueno
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Michel Neunlist
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, IMAD, Nantes, France
| | - Helene Boudin
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, IMAD, Nantes, France
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A. Riedel
- Laboratorio de Endocrino-inmunología, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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25
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Paudel D, Nair DVT, Tian S, Hao F, Goand UK, Joseph G, Prodes E, Chai Z, Robert CE, Chassaing B, Patterson AD, Singh V. Dietary fiber guar gum-induced shift in gut microbiota metabolism and intestinal immune activity enhances susceptibility to colonic inflammation. Gut Microbes 2024; 16:2341457. [PMID: 38630030 PMCID: PMC11028019 DOI: 10.1080/19490976.2024.2341457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
With an increasing interest in dietary fibers (DFs) to promote intestinal health and the growth of beneficial gut bacteria, there is a continued rise in the incorporation of refined DFs in processed foods. It is still unclear how refined fibers, such as guar gum, affect the gut microbiota activity and pathogenesis of inflammatory bowel disease (IBD). Our study elucidated the effect and underlying mechanisms of guar gum, a fermentable DF (FDF) commonly present in a wide range of processed foods, on colitis development. We report that guar gum containing diet (GuD) increased the susceptibility to colonic inflammation. Specifically, GuD-fed group exhibited severe colitis upon dextran sulfate sodium (DSS) administration, as evidenced by reduced body weight, diarrhea, rectal bleeding, and shortening of colon length compared to cellulose-fed control mice. Elevated levels of pro-inflammatory markers in both serum [serum amyloid A (SAA), lipocalin 2 (Lcn2)] and colon (Lcn2) and extensive disruption of colonic architecture further affirmed that GuD-fed group exhibited more severe colitis than control group upon DSS intervention. Amelioration of colitis in GuD-fed group pre-treated with antibiotics suggest a vital role of intestinal microbiota in GuD-mediated exacerbation of intestinal inflammation. Gut microbiota composition and metabolite analysis in fecal and cecal contents, respectively, revealed that guar gum primarily enriches Actinobacteriota, specifically Bifidobacterium. Guar gum also altered multiple genera belonging to phyla Bacteroidota and Firmicutes. Such shift in gut microbiota composition favored luminal accumulation of intermediary metabolites succinate and lactate in the GuD-fed mice. Colonic IL-18 and tight junction markers were also decreased in the GuD-fed group. Importantly, GuD-fed mice pre-treated with recombinant IL-18 displayed attenuated colitis. Collectively, unfavorable changes in gut microbiota activity leading to luminal accumulation of lactate and succinate, reduced colonic IL-18, and compromised gut barrier function following guar gum feeding contributed to increased colitis susceptibility.
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Affiliation(s)
- Devendra Paudel
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Divek V. T. Nair
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Sangshan Tian
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Fuhua Hao
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Umesh K. Goand
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Grace Joseph
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Eleni Prodes
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Zhi Chai
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chloé E.M. Robert
- INSERM U1016, team “Mucosal microbiota in chronic inflammatory diseases”, CNRS UMR 8104, Université Paris Cité, Paris, France
- INSERM U1306, Microbiome-Host Interaction group, Institut Pasteur, Université Paris Cité, Paris, France
| | - Benoit Chassaing
- INSERM U1016, team “Mucosal microbiota in chronic inflammatory diseases”, CNRS UMR 8104, Université Paris Cité, Paris, France
- INSERM U1306, Microbiome-Host Interaction group, Institut Pasteur, Université Paris Cité, Paris, France
| | - Andrew D. Patterson
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Vishal Singh
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
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26
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Guo Y, Kitamoto S, Caballero-Flores G, Kim Y, Watanabe D, Sugihara K, Núñez G, Alteri CJ, Inohara N, Kamada N. Oral pathobiont Klebsiella chaperon usher pili provide site-specific adaptation for the inflamed gut mucosa. Gut Microbes 2024; 16:2333463. [PMID: 38545880 PMCID: PMC10984132 DOI: 10.1080/19490976.2024.2333463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
The ectopic gut colonization by orally derived pathobionts has been implicated in the pathogenesis of various gastrointestinal diseases, including inflammatory bowel disease (IBD). For example, gut colonization by orally derived Klebsiella spp. has been linked to IBD in mice and humans. However, the mechanisms whereby oral pathobionts colonize extra-oral niches, such as the gut mucosa, remain largely unknown. Here, we performed a high-density transposon (Tn) screening to identify genes required for the adaptation of an oral Klebsiella strain to different mucosal sites - the oral and gut mucosae - at the steady state and during inflammation. We find that K. aerogenes, an oral pathobiont associated with both oral and gut inflammation in mice, harbors a newly identified genomic locus named "locus of colonization in the inflamed gut (LIG)" that encodes genes related to iron acquisition (Sit and Chu) and host adhesion (chaperon usher pili [CUP] system). The LIG locus is highly conserved among K. aerogenes strains, and these genes are also present in several other Klebsiella species. The Tn screening revealed that the LIG locus is required for the adaptation of K. aerogenes in its ectopic niche. In particular, we determined K. aerogenes employs a CUP system (CUP1) present in the LIG locus for colonization in the inflamed gut, but not in the oral mucosa. Thus, oral pathobionts likely exploit distinct adaptation mechanisms in their ectopically colonized intestinal niche compared to their native niche.
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Affiliation(s)
- Yijie Guo
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Sho Kitamoto
- WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
| | - Gustavo Caballero-Flores
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, WI, USA
| | - Yeji Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Daisuke Watanabe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Kohei Sugihara
- WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
| | - Gabriel Núñez
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | | | - Naohiro Inohara
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Nobuhiko Kamada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
- WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
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27
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Herfindal AM, van Megen F, Gilde MKO, Valeur J, Rudi K, Skodje GI, Lundin KEA, Henriksen C, Bøhn SK. Effects of a low FODMAP diet on gut microbiota in individuals with treated coeliac disease having persistent gastrointestinal symptoms - a randomised controlled trial. Br J Nutr 2023; 130:2061-2075. [PMID: 37272479 PMCID: PMC10657752 DOI: 10.1017/s0007114523001253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 04/28/2023] [Accepted: 05/17/2023] [Indexed: 06/06/2023]
Abstract
Individuals with coeliac disease (CeD) often experience gastrointestinal symptoms despite adherence to a gluten-free diet (GFD). While we recently showed that a diet low in fermentable oligo-, di-, monosaccharides and polyols (FODMAP) successfully provided symptom relief in GFD-treated CeD patients, there have been concerns that the low FODMAP diet (LFD) could adversely affect the gut microbiota. Our main objective was therefore to investigate whether the LFD affects the faecal microbiota and related variables of gut health. In a randomised controlled trial GFD-treated CeD adults, having persistent gastrointestinal symptoms, were randomised to either consume a combined LFD and GFD (n 39) for 4 weeks or continue with GFD (controls, n 36). Compared with the control group, the LFD group displayed greater changes in the overall faecal microbiota profile (16S rRNA gene sequencing) from baseline to follow-up (within-subject β-diversity, P < 0·001), characterised by lower and higher follow-up abundances (%) of genus Anaerostipes (Pgroup < 0·001) and class Erysipelotrichia (Pgroup = 0·02), respectively. Compared with the control group, the LFD led to lower follow-up concentrations of faecal propionic and valeric acid (GC-FID) in participants with high concentrations at baseline (Pinteraction ≤ 0·009). No differences were found in faecal bacterial α-diversity (Pgroup ≥ 0·20) or in faecal neutrophil gelatinase-associated lipocalin (ELISA), a biomarker of gut integrity and inflammation (Pgroup = 0·74), between the groups at follow-up. The modest effects of the LFD on the gut microbiota and related variables in the CeD patients of the present study are encouraging given the beneficial effects of the LFD strategy to treat functional GI symptoms (Registered at clinicaltrials.gov as NCT03678935).
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Affiliation(s)
- Anne Mari Herfindal
- Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Ås, Norway
| | - Frida van Megen
- KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
- Unit for Clinical Nutrition, Division of Cancer Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Mari K. O. Gilde
- Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Ås, Norway
| | - Jørgen Valeur
- Unger-Vetlesen Institute, Lovisenberg Diaconal Hospital, Oslo, Norway
| | - Knut Rudi
- Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Ås, Norway
| | - Gry I. Skodje
- Healthy Life Centre, Municipality of Nes, Nes, Norway
| | - Knut E. A. Lundin
- KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
- Department of Gastroenterology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Christine Henriksen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Siv Kjølsrud Bøhn
- Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Ås, Norway
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28
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Holcomb L, Holman JM, Hurd M, Lavoie B, Colucci L, Hunt B, Hunt T, Kinney M, Pathak J, Mawe GM, Moses PL, Perry E, Stratigakis A, Zhang T, Chen G, Ishaq SL, Li Y. Early life exposure to broccoli sprouts confers stronger protection against enterocolitis development in an immunological mouse model of inflammatory bowel disease. mSystems 2023; 8:e0068823. [PMID: 37942948 PMCID: PMC10734470 DOI: 10.1128/msystems.00688-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/02/2023] [Indexed: 11/10/2023] Open
Abstract
IMPORTANCE To our knowledge, IL-10-KO mice have not previously been used to investigate the interactions of host, microbiota, and broccoli, broccoli sprouts, or broccoli bioactives in resolving symptoms of CD. We showed that a diet containing 10% raw broccoli sprouts increased the plasma concentration of the anti-inflammatory compound sulforaphane and protected mice to varying degrees against disease symptoms, including weight loss or stagnation, fecal blood, and diarrhea. Younger mice responded more strongly to the diet, further reducing symptoms, as well as increased gut bacterial richness, increased bacterial community similarity to each other, and more location-specific communities than older mice on the diet intervention. Crohn's disease disrupts the lives of patients and requires people to alter dietary and lifestyle habits to manage symptoms. The current medical treatment is expensive with significant side effects, and a dietary intervention represents an affordable, accessible, and simple strategy to reduce the burden of symptoms.
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Affiliation(s)
- Lola Holcomb
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Johanna M. Holman
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Molly Hurd
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Brigitte Lavoie
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Louisa Colucci
- Department of Biology, Husson University, Bangor, Maine, USA
| | - Benjamin Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Timothy Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Marissa Kinney
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Jahnavi Pathak
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Gary M. Mawe
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Peter L. Moses
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
- Finch Therapeutics, Somerville, Massachusetts, USA
| | - Emma Perry
- Electron Microscopy Laboratory, University of Maine, Orono, Maine, USA
| | - Allesandra Stratigakis
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Tao Zhang
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Grace Chen
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Suzanne L. Ishaq
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Yanyan Li
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
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29
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Wolter M, Grant ET, Boudaud M, Pudlo NA, Pereira GV, Eaton KA, Martens EC, Desai MS. Diet-driven differential response of Akkermansia muciniphila modulates pathogen susceptibility. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.15.571894. [PMID: 38168188 PMCID: PMC10760068 DOI: 10.1101/2023.12.15.571894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The erosion of the colonic mucus layer by a dietary fiber-deprived gut microbiota results in heightened susceptibility to an attaching and effacing pathogen, Citrobacter rodentium. Nevertheless, the questions of whether and how specific mucolytic bacteria aid in the increased pathogen susceptibility remain unexplored. Here, we leverage a functionally characterized, 14-member synthetic human microbiota in gnotobiotic mice to deduce which bacteria and functions are responsible for the pathogen susceptibility. Using strain dropouts of mucolytic bacteria from the community, we show that Akkermansia muciniphila renders the host more vulnerable to the mucosal pathogen during fiber deprivation. However, the presence of A. muciniphila reduces pathogen load on a fiber-sufficient diet, highlighting the context-dependent beneficial effects of this mucin specialist. The enhanced pathogen susceptibility is not owing to altered host immune or pathogen responses, but is driven by a combination of increased mucus penetrability and altered activities of A. muciniphila and other community members. Our study provides novel insights into the mechanisms of how discrete functional responses of the same mucolytic bacterium either resist or enhance enteric pathogen susceptibility.
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Affiliation(s)
- Mathis Wolter
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Erica T. Grant
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Marie Boudaud
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Nicholas A. Pudlo
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Gabriel V. Pereira
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Kathryn A. Eaton
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Eric C. Martens
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Mahesh S. Desai
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark
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Kuffa P, Pickard JM, Campbell A, Yamashita M, Schaus SR, Martens EC, Schmidt TM, Inohara N, Núñez G, Caruso R. Fiber-deficient diet inhibits colitis through the regulation of the niche and metabolism of a gut pathobiont. Cell Host Microbe 2023; 31:2007-2022.e12. [PMID: 37967555 PMCID: PMC10842462 DOI: 10.1016/j.chom.2023.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/26/2023] [Accepted: 10/18/2023] [Indexed: 11/17/2023]
Abstract
Exclusive enteral nutrition (EEN) with fiber-free diets is an effective steroid-sparing treatment to induce clinical remission in children with Crohn's disease (CD). However, the mechanism underlying the beneficial effects of EEN remains obscure. Using a model of microbiota-dependent colitis with the hallmarks of CD, we find that the administration of a fiber-free diet prevents the development of colitis and inhibits intestinal inflammation in colitic animals. Remarkably, fiber-free diet alters the intestinal localization of Mucispirillum schaedleri, a mucus-dwelling pathobiont, which is required for triggering disease. Mechanistically, the absence of dietary fiber reduces nutrient availability and impairs the dissimilatory nitrate reduction to ammonia (DNRA) metabolic pathway of Mucispirillum, leading to its exclusion from the mucus layer and disease remission. Thus, appropriate localization of the specific pathobiont in the mucus layer is critical for disease development, which is disrupted by fiber exclusion. These results suggest strategies to treat CD by targeting the intestinal niche and metabolism of disease-causing microbes.
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Affiliation(s)
- Peter Kuffa
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Joseph M Pickard
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Austin Campbell
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Misa Yamashita
- Department of Public Health and Preventive Medicine, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi 755-8505, Japan
| | - Sadie R Schaus
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Eric C Martens
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Thomas M Schmidt
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Naohiro Inohara
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Gabriel Núñez
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Roberta Caruso
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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31
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Mostafa I, Hasan SMT, Gazi MA, Alam MA, Fahim SM, Saqeeb KN, Ahmed T. Alteration of stool pH and its association with biomarkers of gut enteropathy among slum-dwelling women of reproductive age in Bangladesh. BMC Womens Health 2023; 23:661. [PMID: 38071298 PMCID: PMC10710701 DOI: 10.1186/s12905-023-02758-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 11/01/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Recent evidence suggests that measures of maternal gut enteropathy are associated with unfavorable fetal outcomes. It is, therefore, crucial to identify and treat the features of intestinal enteropathy among reproductive-age women living in areas where enteropathy is highly prevalent. However, there is a lack of non-invasive diagnostic tests to determine EED, making it difficult to identify the disease in field settings. In this study, we tested the potential of fecal pH as a biomarker of gut enteropathy and investigated its relationship with fecal biomarkers of intestinal enteropathy in reproductive-age women living in resource-limited environments. METHODS Data on socio-demographic information, anthropometry, and biological samples were collected from 78 apparently healthy women aged between 20 and 27 years from November 2018 to December 2019. The association of stool pH with two fecal biomarkers of gut enteropathy (i.e., intestinal alkaline phosphatase [IAP] and fecal lipocalin-2 [LCN-2] was investigated using multiple linear regression models after adjusting for relevant covariates. RESULTS In the adjusted models, alkaline stool pH (pH > 7.2) was found to be significantly associated with a decrease in the fecal IAP level by 1.05 unit (95% CI: -1.68, -0.42; p < 0.001) in the log scale, and acidic stool pH (pH < 6) was found to be significantly associated with an increase in the fecal LCN-2 level by 0.89 units (95% CI: 0.12, 1.67; p < 0.025) in the log scale. CONCLUSIONS The study findings demonstrated an association of fecal pH with biomarkers of gut enteropathy indicating its applicability as a simple tool for understanding intestinal enteropathy among reproductive-age women living in resource-limited settings.
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Affiliation(s)
- Ishita Mostafa
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh.
| | - S M Tafsir Hasan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Md Amran Gazi
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Md Ashraful Alam
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Shah Mohammad Fahim
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Kazi Nazmus Saqeeb
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Tahmeed Ahmed
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
- Office of the Executive Director, icddr,b, Dhaka, 1212, Bangladesh
- Department of Global Health, University of Washington, Seattle, WA, 98195, USA
- Department of Public Health Nutrition, James P Grant School of Public Health, BRAC University, Dhaka, 1212, Bangladesh
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32
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Roberts JL, Chiedo B, Drissi H. Systemic inflammatory and gut microbiota responses to fracture in young and middle-aged mice. GeroScience 2023; 45:3115-3129. [PMID: 37821753 PMCID: PMC10643610 DOI: 10.1007/s11357-023-00963-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023] Open
Abstract
Age is a patient-specific factor that can significantly delay fracture healing and exacerbate systemic sequelae during convalescence. The basis for this difference in healing rates is not well-understood, but heightened inflammation has been suggested to be a significant contributor. In this study, we investigated the systemic cytokine and intestinal microbiome response to closed femur fracture in 3-month-old (young adult) and 15-month-old (middle-aged) female wild-type mice. Middle-aged mice had a serum cytokine profile that was distinct from young mice at days 10, 14, and 18 post-fracture. This was characterized by increased concentrations of IL-17a, IL-10, IL-6, MCP-1, EPO, and TNFα. We also observed changes in the community structure of the gut microbiota in both young and middle-aged mice that was evident as early as day 3 post-fracture. This included an Enterobacteriaceae bloom at day 3 post-fracture in middle-aged mice and an increase in the relative abundance of the Muribaculum genus. Moreover, we observed an increase in the relative abundance of the health-promoting Bifidobacterium genus in young mice after fracture that did not occur in middle-aged mice. There were significant correlations between serum cytokines and specific genera, including a negative correlation between Bifidobacterium and the highly induced cytokine IL-17a. Our study demonstrates that aging exacerbates the inflammatory response to fracture leading to high levels of pro-inflammatory cytokines and disruption of the intestinal microbiota.
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Affiliation(s)
- Joseph L Roberts
- Department of Orthopaedics, Emory University School of Medicine, 21 Ortho Ln, 6th Fl, Office 12, Atlanta, GA, 30329, USA.
- The Atlanta Department of Veterans Affairs Medical Center, Decatur, GA, USA.
- College of Health Solutions, Arizona State University, 850 N 5th St, Office 360J, Phoenix, AZ, 85004, USA.
| | - Brandon Chiedo
- The Atlanta Department of Veterans Affairs Medical Center, Decatur, GA, USA
| | - Hicham Drissi
- Department of Orthopaedics, Emory University School of Medicine, 21 Ortho Ln, 6th Fl, Office 12, Atlanta, GA, 30329, USA.
- The Atlanta Department of Veterans Affairs Medical Center, Decatur, GA, USA.
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33
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Li T, Chen H, Xu B, Yu M, Li J, Shi Y, Xia S, Wu S. Deciphering the interplay between LPS/TLR4 pathways, neurotransmitter, and deltamethrin-induced depressive-like behavior: Perspectives from the gut-brain axis. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 197:105697. [PMID: 38072552 DOI: 10.1016/j.pestbp.2023.105697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/31/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023]
Abstract
The improper use of deltamethrin (DM) can result in its accumulation in soil, water, food, and even the human body, which is associated with an elevated risk of neurotoxicity and behavioral abnormalities; however, the underlying mechanisms remain insufficiently investigated. Emerging evidence underscores the significance of the gut-brain axis in central nervous system (CNS) dysfunctions. Accordingly, this study investigates the role of the gut-brain axis in DM-induced behavioral anomalies in mice. The results showed that DM exposure induced depressive-like behavior, and the hippocampus, the region that is responsible for the modulation of emotional behavior, showed structural integrity disrupted (neuronal nuclear shrinkage and decreased tight junction protein expression). In addition, DM exposure led to compromised gut barrier integrity (disruptions on crypt surfaces and decreased tight junction protein expression), which might contribute to the gut bacterial-derived lipopolysaccharide (LPS) leakage into the bloodstream and reaching the brain, triggering LPS/toll-like receptor (TLR) 4 -mediated increases in brain pro-inflammatory cytokines. Subsequently, we observed a disturbance in neurotransmitter metabolic pathways following DM exposure, which inhibited the production of 5-hydroxytryptamine (5-HT). Additionally, DM exposure resulted in gut microbiota dysbiosis. Characteristic bacteria, such as Alistipes, Bifidobacterium, Gram-negative bacterium cTPY-13, and Odoribacter exhibited significant correlations with behavior, tight junction proteins, inflammatory response, and neurotransmitters. Further fecal microbiota transplantation (FMT) experiments suggested that DM-induced gut microbiota dysbiosis might contribute to depressive-like behavior. These results provide a new perspective on the toxicity mechanism of DM, indicating that its neurotoxicity may be partially regulated by the microbiota-gut-brain axis.
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Affiliation(s)
- Tongtong Li
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hao Chen
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Baohua Xu
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Mengwei Yu
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jun Li
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Ying Shi
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shaohui Xia
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shijin Wu
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China.
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Zhang K, Chen J, Liang L, Wang Z, Xiong Q, Yu H, Du H. Lcn2 deficiency accelerates the infection of Escherichia coli O157:H7 by disrupting the intestinal barrier function. Microb Pathog 2023; 185:106435. [PMID: 37931825 DOI: 10.1016/j.micpath.2023.106435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/08/2023]
Abstract
Bacterial infections result in intestinal inflammation and injury, which affects gut health and nutrient absorption. Lipocalin 2 (Lcn2) is a protein that reacts to microbial invasion, inflammatory responses, and tissue damage. However, it remains unclear whether Lcn2 has a protective effect against bacterial induced intestinal inflammation. Therefore, this study endeavors to investigate the involvement of Lcn2 in the intestinal inflammation of mice infected with Enterohemorrhagic Escherichia coli O157:H7 (E. coli O157:H7). Lcn2 knockout (Lcn2-/-) mice were used to evaluate the changes of inflammatory responses. Lcn2 deficiency significantly exacerbated clinical symptoms of E. coli O157:H7 infection by reducing body weight and encouraging bacterial colonization of. Compared to infected wild type mice, infected Lcn2-/- mice had significantly elevated levels of pro-inflammatory cytokines in serum and ileum, including interleukin (IL)-6, IL-1β, and tumor necrosis factor-α (TNF-α), as well as severe villi destruction in the jejunum. Furthermore, Lcn2 deficiency aggravated intestinal barrier degradation by significantly reducing the expression of tight junction proteins occludin and claudin 1, the content of myeloperoxidase (MPO) in the ileum, and the number of goblet cells in the colon. Our findings indicated that Lcn2 could alleviate inflammatory damage caused by E. coli O157:H7 infection in mice by enhancing intestinal barrier function.
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Affiliation(s)
- Kang Zhang
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jianjun Chen
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Li Liang
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Zhenjie Wang
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Qingqing Xiong
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Hong Yu
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Huahua Du
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), College of Animal Sciences, Zhejiang University, Hangzhou, China; Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China.
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35
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Shao TY, Jiang TT, Stevens J, Russi AE, Troutman TD, Bernieh A, Pham G, Erickson JJ, Eshleman EM, Alenghat T, Jameson SC, Hogquist KA, Weaver CT, Haslam DB, Deshmukh H, Way SS. Kruppel-like factor 2+ CD4 T cells avert microbiota-induced intestinal inflammation. Cell Rep 2023; 42:113323. [PMID: 37889750 PMCID: PMC10822050 DOI: 10.1016/j.celrep.2023.113323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 09/05/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
Intestinal colonization by antigenically foreign microbes necessitates expanded peripheral immune tolerance. Here we show commensal microbiota prime expansion of CD4 T cells unified by the Kruppel-like factor 2 (KLF2) transcriptional regulator and an essential role for KLF2+ CD4 cells in averting microbiota-driven intestinal inflammation. CD4 cells with commensal specificity in secondary lymphoid organs and intestinal tissues are enriched for KLF2 expression, and distinct from FOXP3+ regulatory T cells or other differentiation lineages. Mice with conditional KLF2 deficiency in T cells develop spontaneous rectal prolapse and intestinal inflammation, phenotypes overturned by eliminating microbiota or reconstituting with donor KLF2+ cells. Activated KLF2+ cells selectively produce IL-10, and eliminating IL-10 overrides their suppressive function in vitro and protection against intestinal inflammation in vivo. Together with reduced KLF2+ CD4 cell accumulation in Crohn's disease, a necessity for the KLF2+ subpopulation of T regulatory type 1 (Tr1) cells in sustaining commensal tolerance is demonstrated.
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Affiliation(s)
- Tzu-Yu Shao
- Division of Infectious Diseases, Center for Inflammation and Tolerance, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Tony T Jiang
- Division of Infectious Diseases, Center for Inflammation and Tolerance, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Joseph Stevens
- Division of Neonatology and Pulmonary Biology, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Abigail E Russi
- Division of Gastroenterology, Hepatology and Advanced Nutrition, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Ty D Troutman
- Division of Allergy and Immunology, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Anas Bernieh
- Division of Pathology, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Giang Pham
- Division of Infectious Diseases, Center for Inflammation and Tolerance, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - John J Erickson
- Division of Neonatology and Pulmonary Biology, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Emily M Eshleman
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Theresa Alenghat
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Stephen C Jameson
- Center for Immunology, Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Kristin A Hogquist
- Center for Immunology, Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Casey T Weaver
- Program in Immunology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL 35233, USA
| | - David B Haslam
- Division of Infectious Diseases, Center for Inflammation and Tolerance, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Hitesh Deshmukh
- Division of Neonatology and Pulmonary Biology, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA
| | - Sing Sing Way
- Division of Infectious Diseases, Center for Inflammation and Tolerance, University of Cincinnati School of Medicine, Cincinnati, OH 45229, USA.
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Tian S, Paudel D, Hao F, Neupane R, Castro R, Patterson AD, Tiwari AK, Prabhu KS, Singh V. Refined fiber inulin promotes inflammation-associated colon tumorigenesis by modulating microbial succinate production. Cancer Rep (Hoboken) 2023; 6:e1863. [PMID: 37489647 PMCID: PMC10644334 DOI: 10.1002/cnr2.1863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/21/2023] [Accepted: 06/30/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND AND AIM There is an increased risk of colon cancer associated with inflammatory bowel disease (IBD). Dietary fibers (DFs) naturally present in vegetables and whole grains offer numerous beneficial effects on intestinal health. However, the effects of refined DFs on intestinal health remain unclear. Therefore, we elucidated the impact of the refined DF inulin on colonic inflammation and tumorigenesis. METHODS Four-week-old wild-type (WT) mice were fed diets containing insoluble DF cellulose (control) or refined DF inulin for 4 weeks. A subgroup of mice was then switched to drinking water containing dextran sulfate sodium (DSS, 1.4% wt/vol) for colitis induction. In another subgroup of mice, colitis-associated colorectal cancer (CRC) was initiated with three 7-day alternate cycles of DSS following an initial dose of mutagenic substance azoxymethane (AOM; 7.5 mg/kg body weight; i.p.). Post 7 weeks of AOM treatment, mice were euthanized and examined for CRC development. RESULTS Mice consuming inulin-containing diet exhibited severe colitis upon DSS administration, as evidenced by more body weight loss, rectal bleeding, and increased colonic inflammation than the DSS-treated control group. Correspondingly, histological analysis revealed extensive disruption of colon architecture and massive infiltration of immune cells in the inulin-fed group. We next examined the effect of inulin on CRC development. Surprisingly, significant mortality (~50%) was observed in the inulin-fed but not in the control group during the DSS cycle. Consequently, the remaining inulin-fed mice, which completed the study exhibited extensive colon tumorigenesis. Immunohistochemical characterization showed comparatively high expression of the cell proliferation marker Ki67 and activation of the Wnt signaling in tumor sections obtained from the inulin-fed group. Gut microbiota and metabolite analysis revealed expansion of succinate producers and elevated cecal succinate in inulin-fed mice. Human colorectal carcinoma cells (HCT116) proliferated more rapidly when supplemented with succinate in an inflamed environment, suggesting that elevated luminal succinate may contribute to tumorigenesis. CONCLUSIONS Our study uncovers that supplementation of diet with refined inulin induces abnormal succinate accumulation in the intestinal lumen, which in part contributes to promoting colon inflammation and tumorigenesis.
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Affiliation(s)
- Sangshan Tian
- Department of Nutritional SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Devendra Paudel
- Department of Nutritional SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Fuhua Hao
- Department of Veterinary and Biomedical SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Rabin Neupane
- Department of Pharmacology and Experimental TherapeuticsUniversity of ToledoToledoOhioUSA
| | - Rita Castro
- Department of Nutritional SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Andrew D. Patterson
- Department of Veterinary and Biomedical SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Amit K. Tiwari
- Department of Pharmacology and Experimental TherapeuticsUniversity of ToledoToledoOhioUSA
| | - K. Sandeep Prabhu
- Department of Veterinary and Biomedical SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Vishal Singh
- Department of Nutritional SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
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Mami W, Znaidi-Marzouki S, Doghri R, Ben Ahmed M, Znaidi S, Messadi E. Inflammatory Bowel Disease Increases the Severity of Myocardial Infarction after Acute Ischemia-Reperfusion Injury in Mice. Biomedicines 2023; 11:2945. [PMID: 38001946 PMCID: PMC10669621 DOI: 10.3390/biomedicines11112945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 11/26/2023] Open
Abstract
(1) Background: Increased risk of myocardial infarction (MI) has been linked to several inflammatory conditions, including inflammatory bowel disease (IBD). However, the relationship between IBD and MI remains unclear. Here, we implemented an original mouse model combining IBD and MI to determine IBD's impact on MI severity and the link between the two diseases. (2) Methods: An IBD model was established by dextran sulfate sodium (DSS) administration in drinking water, alone or with oral C. albicans (Ca) gavage. IBD severity was assessed by clinical/histological scores and intestinal/systemic inflammatory biomarker measurement. Mice were subjected to myocardial ischemia-reperfusion (IR), and MI severity was assessed by quantifying infarct size (IS) and serum cardiac troponin I (cTnI) levels. (3) Results: IBD mice exhibited elevated fecal lipocalin 2 (Lcn2) and IL-6 levels. DSS mice exhibited almost two-fold increase in IS compared to controls, with serum cTnI levels strongly correlated with IS. Ca inoculation tended to worsen DSS-induced systemic inflammation and IR injury, an observation which is not statistically significant. (4) Conclusions: This is the first proof-of-concept study demonstrating the impact of IBD on MI severity and suggesting mechanistic aspects involved in the IBD-MI connection. Our findings could pave the way for MI therapeutic approaches based on identified IBD-induced inflammatory mediators.
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Affiliation(s)
- Wael Mami
- Plateforme de Physiologie et Physiopathologie Cardiovasculaires (P2C), Laboratoire des Biomolécules, Venins et Applications Théranostiques (LR20IPT01), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia;
| | - Soumaya Znaidi-Marzouki
- Laboratoire de Transmission, Contrôle et Immunobiologie des Infections (LR16IPT02), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (S.Z.-M.); (M.B.A.)
| | - Raoudha Doghri
- Département d’Anatomie et Cytologie Pathologiques, Institut Salah-Azaeiz, Université El-Manar, Tunis 1006, Tunisia;
| | - Melika Ben Ahmed
- Laboratoire de Transmission, Contrôle et Immunobiologie des Infections (LR16IPT02), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (S.Z.-M.); (M.B.A.)
| | - Sadri Znaidi
- Laboratoire de Microbiologie Moléculaire, Vaccinologie et Développement Biotechnologique (LR16IPT01), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia;
- Unité Biologie et Pathogénicité Fongiques, Département Mycologie, Institut Pasteur, INRA, 75015 Paris, France
| | - Erij Messadi
- Plateforme de Physiologie et Physiopathologie Cardiovasculaires (P2C), Laboratoire des Biomolécules, Venins et Applications Théranostiques (LR20IPT01), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia;
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38
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Holman JM, Colucci L, Baudewyns D, Balkan J, Hunt T, Hunt B, Kinney M, Holcomb L, Stratigakis A, Chen G, Moses PL, Mawe GM, Zhang T, Li Y, Ishaq SL. Steamed broccoli sprouts alleviate DSS-induced inflammation and retain gut microbial biogeography in mice. mSystems 2023; 8:e0053223. [PMID: 37702510 PMCID: PMC10654075 DOI: 10.1128/msystems.00532-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/24/2023] [Indexed: 09/14/2023] Open
Abstract
IMPORTANCE Evaluating bacterial communities across different locations in the gut provides a greater insight than fecal samples alone and provides an additional metric by which to evaluate beneficial host-microbe interactions. Here, we show that 10% steamed broccoli sprouts in the diet protects mice from the negative effects of dextran sodium sulfate-induced colitis, that colitis erases biogeographic patterns of bacterial communities in the gut, and that the cecum is not likely to be a significant contributor to colonic bacteria of interest in the DSS mouse model of ulcerative colitis. Mice fed the broccoli sprout diet during colitis performed better than mice fed the control diet while receiving DSS. The identification of accessible dietary components and concentrations that help maintain and correct the gut microbiome may provide universal and equitable approaches to IBD prevention and recovery, and broccoli sprouts represent a promising strategy.
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Affiliation(s)
- Johanna M. Holman
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Louisa Colucci
- Department of Biology, Husson University, Bangor, Maine, USA
| | - Dorien Baudewyns
- Department of Psychology, University of Maine, Orono, Maine, USA
| | - Joe Balkan
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts, USA
| | - Timothy Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Benjamin Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Marissa Kinney
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Lola Holcomb
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Allesandra Stratigakis
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Grace Chen
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Peter L. Moses
- Departments of Neurological Sciences and of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
- Finch Therapeutics, Somerville, Massachusetts, USA
| | - Gary M. Mawe
- Departments of Neurological Sciences and of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Tao Zhang
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Yanyan Li
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Suzanne L. Ishaq
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
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Duffy SC, Lupien A, Elhaji Y, Farag M, Marcus V, Behr MA. Establishment of persistent enteric mycobacterial infection following streptomycin pre-treatment. Gut Pathog 2023; 15:46. [PMID: 37789445 PMCID: PMC10546655 DOI: 10.1186/s13099-023-00573-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 09/21/2023] [Indexed: 10/05/2023] Open
Abstract
Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of paratuberculosis, a chronic gastrointestinal disease affecting ruminants. This disease remains widespread in part due to the limitations of available diagnostics and vaccines. A representative small animal model of disease could act as a valuable tool for studying its pathogenesis and to develop new methods for paratuberculosis control, but current models are lacking. Streptomycin pre-treatment can reduce colonization resistance and has previously been shown to improve enteric infection in a Salmonella model. Here, we investigated whether streptomycin pre-treatment of mice followed by MAP gavage could act as a model of paratuberculosis which mimics the natural route of infection and disease development in ruminants. The infection outcomes of MAP were compared to M. avium subsp. hominissuis (MAH), an environmental mycobacterium, and M. bovis and M. orygis, two tuberculous mycobacteria. Streptomycin pre-treatment was shown to consistently improve bacterial infection post-oral inoculation. This model led to chronic MAP infection of the intestines and mesenteric lymph nodes (MLNs) up to 24-weeks post-gavage, however there was no evidence of inflammation or disease. These infection outcomes were found to be specific to MAP. When the model was applied to a bacterium of lesser virulence MAH, the infection was comparatively transient. Mice infected with bacteria of greater virulence, M. bovis or M. orygis, developed chronic intestinal and MLN infection with pulmonary disease similar to zoonotic TB. Our findings suggest that a streptomycin pre-treatment mouse model could be applied to future studies to improve enteric infection with MAP and to investigate other modifications underlying MAP enteritis.
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Affiliation(s)
- Shannon C Duffy
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
- McGill International TB Centre, Montreal, QC, Canada
- The Infectious Diseases and Immunity in Global Health Program, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Andréanne Lupien
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
- McGill International TB Centre, Montreal, QC, Canada
- The Infectious Diseases and Immunity in Global Health Program, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Youssef Elhaji
- Diagnostic Genomic Division, Department of Laboratory Medicine and Pathology, Hamad Medical Corporation, Doha, Qatar
| | - Mina Farag
- Department of Pathology, McGill University, Montreal, QC, Canada
- Department of Laboratory Medicine, Division of Pathology, McGill University Health Center, Montreal, QC, Canada
| | - Victoria Marcus
- Department of Pathology, McGill University, Montreal, QC, Canada
- Department of Laboratory Medicine, Division of Pathology, McGill University Health Center, Montreal, QC, Canada
| | - Marcel A Behr
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada.
- McGill International TB Centre, Montreal, QC, Canada.
- The Infectious Diseases and Immunity in Global Health Program, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada.
- Department of Medicine, McGill University, Montreal, QC, Canada.
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Alhasan MM, Hölsken O, Duerr C, Helfrich S, Branzk N, Philipp A, Leitz D, Duerr J, Almousa Y, Barrientos G, Mohn WW, Gamradt S, Conrad ML. Antibiotic use during pregnancy is linked to offspring gut microbial dysbiosis, barrier disruption, and altered immunity along the gut-lung axis. Eur J Immunol 2023; 53:e2350394. [PMID: 37431194 DOI: 10.1002/eji.202350394] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/16/2023] [Accepted: 06/21/2023] [Indexed: 07/12/2023]
Abstract
Antibiotic use during pregnancy is associated with increased asthma risk in children. Since approximately 25% of women use antibiotics during pregnancy, it is important to identify the pathways involved in this phenomenon. We investigate how mother-to-offspring transfer of antibiotic-induced gut microbial dysbiosis influences immune system development along the gut-lung axis. Using a mouse model of maternal antibiotic exposure during pregnancy, we immunophenotyped offspring in early life and after asthma induction. In early life, prenatal-antibiotic exposed offspring exhibited gut microbial dysbiosis, intestinal inflammation (increased fecal lipocalin-2 and IgA), and dysregulated intestinal ILC3 subtypes. Intestinal barrier dysfunction in the offspring was indicated by a FITC-dextran intestinal permeability assay and circulating lipopolysaccharide. This was accompanied by increased T-helper (Th)17 cell percentages in the offspring's blood and lungs in both early life and after allergy induction. Lung tissue additionally showed increased percentages of RORγt T-regulatory (Treg) cells at both time points. Our investigation of the gut-lung axis identifies early-life gut dysbiosis, intestinal inflammation, and barrier dysfunction as a possible developmental programming event promoting increased expression of RORγt in blood and lung CD4+ T cells that may contribute to increased asthma risk.
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Affiliation(s)
- Moumen M Alhasan
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Oliver Hölsken
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Department of Anesthesiology and Intensive Care Medicine, Charité Campus Benjamin Franklin, Berlin, Germany
- German Rheuma Research Center Berlin (DRFZ), Mucosal and Developmental Immunology, Berlin, Germany
- Heidelberg Biosciences International Graduate School (HBIGS), Heidelberg University, Heidelberg, Germany
| | - Claudia Duerr
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Sofia Helfrich
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Nora Branzk
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Alina Philipp
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Dominik Leitz
- Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Julia Duerr
- Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Yahia Almousa
- Laboratory of Molecular Tumor Pathology, Institute of Pathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Gabriela Barrientos
- Laboratorio de Medicina Experimental, Hospital Alemán. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - William W Mohn
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stefanie Gamradt
- Department of Psychiatry and Psychotherapy, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Melanie L Conrad
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
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Long D, Alghoul Z, Sung J, Yang C, Merlin D. Prevention of Colitis-Associated Cancer via Oral Administration of M13-Loaded Lipid Nanoparticles. Pharmaceutics 2023; 15:2331. [PMID: 37765299 PMCID: PMC10534593 DOI: 10.3390/pharmaceutics15092331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/09/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Inflammatory bowel disease (IBD), which includes ulcerative colitis (UC) and Crohn's disease, is known to increase the risk of colitis-associated cancer (CAC). CAC has been found to be unresponsive to standard chemotherapy regimens, and the current treatments do not utilize effective small-molecule drugs and colon-targeted delivery systems. Previous studies indicated that the M13-nano-liposome (NL) formulation can effectively target the colon and reshape the gut microbiota in ex vivo cultures, generating altered microbial metabolites that can efficiently prevent chronic UC. In this study, we tested the cancer cell uptake ability of the NL formulation and investigated the potential of the M13-NL formulation to prevent CAC in the azoxymethane (AOM)-exposed IL10-/- mouse model. Our findings demonstrate that oral administration of M13-NL prevents tumor development in AOM-exposed IL10-/- mice, suggesting that M13-NL is a promising oral drug formulation for preventing CAC.
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Affiliation(s)
- Dingpei Long
- Digestive Disease Research Group, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; (D.L.); (Z.A.); (J.S.); (D.M.)
| | - Zahra Alghoul
- Digestive Disease Research Group, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; (D.L.); (Z.A.); (J.S.); (D.M.)
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
| | - Junsik Sung
- Digestive Disease Research Group, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; (D.L.); (Z.A.); (J.S.); (D.M.)
| | - Chunhua Yang
- Digestive Disease Research Group, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; (D.L.); (Z.A.); (J.S.); (D.M.)
- Gastroenterology Research, Atlanta Veterans Affairs Medical Center, Decatur, GA 30302, USA
| | - Didier Merlin
- Digestive Disease Research Group, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; (D.L.); (Z.A.); (J.S.); (D.M.)
- Gastroenterology Research, Atlanta Veterans Affairs Medical Center, Decatur, GA 30302, USA
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Jang KK, Heaney T, London M, Ding Y, Putzel G, Yeung F, Ercelen D, Chen YH, Axelrad J, Gurunathan S, Zhou C, Podkowik M, Arguelles N, Srivastava A, Shopsin B, Torres VJ, Keestra-Gounder AM, Pironti A, Griffin ME, Hang HC, Cadwell K. Antimicrobial overproduction sustains intestinal inflammation by inhibiting Enterococcus colonization. Cell Host Microbe 2023; 31:1450-1468.e8. [PMID: 37652008 PMCID: PMC10502928 DOI: 10.1016/j.chom.2023.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 07/02/2023] [Accepted: 08/07/2023] [Indexed: 09/02/2023]
Abstract
Loss of antimicrobial proteins such as REG3 family members compromises the integrity of the intestinal barrier. Here, we demonstrate that overproduction of REG3 proteins can also be detrimental by reducing a protective species in the microbiota. Patients with inflammatory bowel disease (IBD) experiencing flares displayed heightened levels of secreted REG3 proteins that mediated depletion of Enterococcus faecium (Efm) from the gut microbiota. Efm inoculation of mice ameliorated intestinal inflammation through activation of the innate immune receptor NOD2, which was associated with the bacterial DL-endopeptidase SagA that generates NOD2-stimulating muropeptides. NOD2 activation in myeloid cells induced interleukin-1β (IL-1β) secretion to increase the proportion of IL-22-producing CD4+ T helper cells and innate lymphoid cells that promote tissue repair. Finally, Efm was unable to protect mice carrying a NOD2 gene variant commonly found in IBD patients. Our findings demonstrate that inflammation self-perpetuates by causing aberrant antimicrobial activity that disrupts symbiotic relationships with gut microbes.
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Affiliation(s)
- Kyung Ku Jang
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Thomas Heaney
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Mariya London
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Yi Ding
- Department of Laboratory Medicine, Geisinger Health, Danville, PA 17822, USA
| | - Gregory Putzel
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA; Antimicrobial-Resistant Pathogens Program, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Frank Yeung
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Defne Ercelen
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Ying-Han Chen
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Jordan Axelrad
- Division of Gastroenterology and Hepatology, Department of Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Sakteesh Gurunathan
- Division of Gastroenterology and Hepatology, Department of Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Chaoting Zhou
- Cell and Molecular Biology Graduate Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Magdalena Podkowik
- Antimicrobial-Resistant Pathogens Program, New York University Grossman School of Medicine, New York, NY 10016, USA; Division of Infectious Diseases and Immunology, Department of Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Natalia Arguelles
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA; Antimicrobial-Resistant Pathogens Program, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Anusha Srivastava
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA; Antimicrobial-Resistant Pathogens Program, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Bo Shopsin
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA; Antimicrobial-Resistant Pathogens Program, New York University Grossman School of Medicine, New York, NY 10016, USA; Division of Infectious Diseases and Immunology, Department of Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Victor J Torres
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA; Antimicrobial-Resistant Pathogens Program, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - A Marijke Keestra-Gounder
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Alejandro Pironti
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA; Antimicrobial-Resistant Pathogens Program, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Matthew E Griffin
- Department of Immunology and Microbiology, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Howard C Hang
- Department of Immunology and Microbiology, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA; Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Ken Cadwell
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.
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Yang J, Li D, Zhang M, Lin G, Hu S, Xu H. From the updated landscape of the emerging biologics for IBDs treatment to the new delivery systems. J Control Release 2023; 361:568-591. [PMID: 37572962 DOI: 10.1016/j.jconrel.2023.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/06/2023] [Accepted: 08/06/2023] [Indexed: 08/14/2023]
Abstract
Inflammatory bowel diseases (IBDs) treatments have shifted from small-molecular therapeutics to the oncoming biologics. The first-line biologics against the moderate-to-severe IBDs are mainly involved in antibodies against integrins, cytokines and cell adhesion molecules. Besides, other biologics including growth factors, antioxidative enzyme, anti-inflammatory peptides, nucleic acids, stem cells and probiotics have also been explored at preclinical or clinical studies. Biologics with variety of origins have their unique potentials in attenuating immune inflammation or gut mucosa healing. Great advances in use of biologics for IBDs treatments have been archived in recent years. But delivering issues for biologic have also been confronted due to their liable nature. In this review, we will focus on biologics for IBDs treatments in the recent publications; summarize the current landscapes of biologics and their promise to control disease progress. Alternatively, the confronted challenges for delivering biologics will also be analyzed. To combat these drawbacks, some new delivering strategies are provided: firstly, designing the functional materials with high affinity toward biologics; secondly, the delivering vehicle systems to encapsulate the liable biologics; thirdly, the topical adhering delivery systems as enema. To our knowledge, this review is the first study to summarize the updated usage of the oncoming biologics for IBDs, their confronted challenges in term of delivery and the potential combating strategies.
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Affiliation(s)
- Jiaojiao Yang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Dingwei Li
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Mengjiao Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Gaolong Lin
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Sunkuan Hu
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province 325000, China
| | - Helin Xu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China.
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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] [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.
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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
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Abo H, Muraki A, Harusato A, Imura T, Suzuki M, Takahashi K, Denning TL, Kawashima H. N-acetylglucosamine-6-O sulfation on intestinal mucins prevents obesity and intestinal inflammation by regulating gut microbiota. JCI Insight 2023; 8:e165944. [PMID: 37463055 PMCID: PMC10543739 DOI: 10.1172/jci.insight.165944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 07/11/2023] [Indexed: 08/23/2023] Open
Abstract
Intestinal mucins play an essential role in the defense against bacterial invasion and the maintenance of gut microbiota, which is instrumental in the regulation of host immune systems; hence, its dysregulation is a hallmark of metabolic disease and intestinal inflammation. However, the mechanism by which intestinal mucins control the gut microbiota as well as disease phenotypes remains nebulous. Herein, we report that N-acetylglucosamine (GlcNAc)-6-O sulfation of O-glycans on intestinal mucins performs a protective role against obesity and intestinal inflammation. Chst4-/- mice, lacking GlcNAc-6-O sulfation of the mucin O-glycans, showed significant weight gain and increased susceptibility to dextran sodium sulfate-induced colitis as well as colitis-associated cancer accompanied by significantly reduced immunoglobulin A (IgA) production caused by an impaired T follicular helper cell-mediated IgA response. Interestingly, the protective effects of GlcNAc-6-O sulfation against obesity and intestinal inflammation depend on the gut microbiota, evidenced by the modulation of the gut microbiota by cohousing or microbiota transplantation reversing disease phenotypes and IgA production. Collectively, our findings provide insight into the significance of host glycosylation, more specifically GlcNAc-6-O sulfation on intestinal mucins, in protecting against obesity and intestinal inflammation via regulation of the gut microbiota.
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Affiliation(s)
- Hirohito Abo
- Laboratory of Microbiology and Immunology, Graduate School of Pharmaceutical Science, Chiba University, Chiba, Japan
| | - Aoi Muraki
- Laboratory of Microbiology and Immunology, Graduate School of Pharmaceutical Science, Chiba University, Chiba, Japan
| | | | - Tetsuya Imura
- Department of Surgical Pathology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Maki Suzuki
- Laboratory of Microbiology and Immunology, Graduate School of Pharmaceutical Science, Chiba University, Chiba, Japan
| | - Kohta Takahashi
- Laboratory of Microbiology and Immunology, Graduate School of Pharmaceutical Science, Chiba University, Chiba, Japan
| | - Timothy L. Denning
- Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, USA
| | - Hiroto Kawashima
- Laboratory of Microbiology and Immunology, Graduate School of Pharmaceutical Science, Chiba University, Chiba, Japan
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Peters DE, Norris LD, Tenora L, Šnajdr I, Ponti AK, Zhu X, Sakamoto S, Veeravalli V, Pradhan M, Alt J, Thomas AG, Majer P, Rais R, McDonald C, Slusher BS. A gut-restricted glutamate carboxypeptidase II inhibitor reduces monocytic inflammation and improves preclinical colitis. Sci Transl Med 2023; 15:eabn7491. [PMID: 37556558 PMCID: PMC10661206 DOI: 10.1126/scitranslmed.abn7491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 07/21/2023] [Indexed: 08/11/2023]
Abstract
There is an urgent need to develop therapeutics for inflammatory bowel disease (IBD) because up to 40% of patients with moderate-to-severe IBD are not adequately controlled with existing drugs. Glutamate carboxypeptidase II (GCPII) has emerged as a promising therapeutic target. This enzyme is minimally expressed in normal ileum and colon, but it is markedly up-regulated in biopsies from patients with IBD and preclinical colitis models. Here, we generated a class of GCPII inhibitors designed to be gut-restricted for oral administration, and we interrogated efficacy and mechanism using in vitro and in vivo models. The lead inhibitor, (S)-IBD3540, was potent (half maximal inhibitory concentration = 4 nanomolar), selective, gut-restricted (AUCcolon/plasma > 50 in mice with colitis), and efficacious in acute and chronic rodent colitis models. In dextran sulfate sodium-induced colitis, oral (S)-IBD3540 inhibited >75% of colon GCPII activity, dose-dependently improved gross and histologic disease, and markedly attenuated monocytic inflammation. In spontaneous colitis in interleukin-10 (IL-10) knockout mice, once-daily oral (S)-IBD3540 initiated after disease onset improved disease, normalized colon histology, and attenuated inflammation as evidenced by reduced fecal lipocalin 2 and colon pro-inflammatory cytokines/chemokines, including tumor necrosis factor-α and IL-17. Using primary human colon epithelial air-liquid interface monolayers to interrogate the mechanism, we further found that (S)-IBD3540 protected against submersion-induced oxidative stress injury by decreasing barrier permeability, normalizing tight junction protein expression, and reducing procaspase-3 activation. Together, this work demonstrated that local inhibition of dysregulated gastrointestinal GCPII using the gut-restricted, orally active, small-molecule (S)-IBD3540 is a promising approach for IBD treatment.
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Affiliation(s)
- Diane E. Peters
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Lauren D. Norris
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Lukáš Tenora
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 160 00 Prague, Czechia
| | - Ivan Šnajdr
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 160 00 Prague, Czechia
| | - András K. Ponti
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Xiaolei Zhu
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Shinji Sakamoto
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Vijayabhaskar Veeravalli
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Manisha Pradhan
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jesse Alt
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ajit G. Thomas
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Pavel Majer
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 160 00 Prague, Czechia
| | - Rana Rais
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Christine McDonald
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Barbara S. Slusher
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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47
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Lockhart A, Reed A, Rezende de Castro T, Herman C, Campos Canesso MC, Mucida D. Dietary protein shapes the profile and repertoire of intestinal CD4+ T cells. J Exp Med 2023; 220:214115. [PMID: 37191720 DOI: 10.1084/jem.20221816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 04/11/2023] [Accepted: 05/03/2023] [Indexed: 05/17/2023] Open
Abstract
The intestinal immune system must tolerate food antigens to avoid allergy, a process requiring CD4+ T cells. Combining antigenically defined diets with gnotobiotic models, we show that food and microbiota distinctly influence the profile and T cell receptor repertoire of intestinal CD4+ T cells. Independent of the microbiota, dietary proteins contributed to accumulation and clonal selection of antigen-experienced CD4+ T cells at the intestinal epithelium, imprinting a tissue-specialized transcriptional program including cytotoxic genes on both conventional and regulatory CD4+ T cells (Tregs). This steady state CD4+ T cell response to food was disrupted by inflammatory challenge, and protection against food allergy in this context was associated with Treg clonal expansion and decreased proinflammatory gene expression. Finally, we identified both steady-state epithelium-adapted CD4+ T cells and tolerance-induced Tregs that recognize dietary antigens, suggesting that both cell types may be critical for preventing inappropriate immune responses to food.
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Affiliation(s)
- Ainsley Lockhart
- Laboratory of Mucosal Immunology, The Rockefeller University , New York, NY, USA
| | - Aubrey Reed
- Laboratory of Mucosal Immunology, The Rockefeller University , New York, NY, USA
| | | | - Calvin Herman
- Laboratory of Mucosal Immunology, The Rockefeller University , New York, NY, USA
| | | | - Daniel Mucida
- Laboratory of Mucosal Immunology, The Rockefeller University , New York, NY, USA
- Howard Hughes Medical Institute, The Rockefeller University , New York, NY, USA
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48
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Cortez V, Livingston B, Sharp B, Hargest V, Papizan JB, Pedicino N, Lanning S, Jordan SV, Gulman J, Vogel P, DuBois RM, Crawford JC, Boyd DF, Pruett-Miller SM, Thomas PG, Schultz-Cherry S. Indoleamine 2,3-dioxygenase 1 regulates cell permissivity to astrovirus infection. Mucosal Immunol 2023; 16:551-562. [PMID: 37290501 PMCID: PMC10528345 DOI: 10.1016/j.mucimm.2023.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023]
Abstract
Astroviruses cause a spectrum of diseases spanning asymptomatic infections to severe diarrhea, but little is understood about their pathogenesis. We previously determined that small intestinal goblet cells were the main cell type infected by murine astrovirus-1. Here, we focused on the host immune response to infection and inadvertently discovered a role for indoleamine 2,3-dioxygenase 1 (Ido1), a host tryptophan catabolizing enzyme, in the cellular tropism of murine and human astroviruses. We identified that Ido1 expression was highly enriched among infected goblet cells, and spatially corresponded to the zonation of infection. Because Ido1 can act as a negative regulator of inflammation, we hypothesized it could dampen host antiviral responses. Despite robust interferon signaling in goblet cells, as well as tuft cell and enterocyte bystanders, we observed delayed cytokine induction and suppressed levels of fecal lipocalin-2. Although we found Ido-/- animals were more resistant to infection, this was not associated with fewer goblet cells nor could it be rescued by knocking out interferon responses, suggesting that IDO1 instead regulates cell permissivity. We characterized IDO1-/- Caco-2 cells and observed significantly reduced human astrovirus-1 infection. Together this study highlights a role for Ido1 in astrovirus infection and epithelial cell maturation.
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Affiliation(s)
- Valerie Cortez
- Department of Molecular, Cell & Development Biology, University of California, Santa Cruz, USA.
| | - Brandi Livingston
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Bridgett Sharp
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Virginia Hargest
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - James B Papizan
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Natalie Pedicino
- Department of Molecular, Cell & Development Biology, University of California, Santa Cruz, USA
| | - Sarah Lanning
- Department of Molecular, Cell & Development Biology, University of California, Santa Cruz, USA; Department of Biomolecular Engineering, University of California, Santa Cruz, California, USA
| | - Summer Vaughn Jordan
- Department of Molecular, Cell & Development Biology, University of California, Santa Cruz, USA
| | - Jacob Gulman
- Department of Molecular, Cell & Development Biology, University of California, Santa Cruz, USA
| | - Peter Vogel
- Veterinary Pathology Core, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Rebecca M DuBois
- Department of Biomolecular Engineering, University of California, Santa Cruz, California, USA
| | - Jeremy Chase Crawford
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - David F Boyd
- Department of Molecular, Cell & Development Biology, University of California, Santa Cruz, USA
| | - Shondra M Pruett-Miller
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Paul G Thomas
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Stacey Schultz-Cherry
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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49
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Sahu B, Johnson LM, Sohrabi M, Usatii AA, Craig RMJ, Kaelberer JB, Chandrasekaran SP, Kaur H, Nookala S, Combs CK. Effects of Probiotics on Colitis-Induced Exacerbation of Alzheimer's Disease in AppNL-G-F Mice. Int J Mol Sci 2023; 24:11551. [PMID: 37511312 PMCID: PMC10381012 DOI: 10.3390/ijms241411551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/09/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Alzheimer's disease (AD) is characterized by progressive cognitive decline and is a leading cause of death in the United States. Neuroinflammation has been implicated in the progression of AD, and several recent studies suggest that peripheral immune dysfunction may influence the disease. Continuing evidence indicates that intestinal dysbiosis is an attribute of AD, and inflammatory bowel disease (IBD) has been shown to aggravate cognitive impairment. Previously, we separately demonstrated that an IBD-like condition exacerbates AD-related changes in the brains of the AppNL-G-F mouse model of AD, while probiotic intervention has an attenuating effect. In this study, we investigated the combination of a dietary probiotic and an IBD-like condition for effects on the brains of mice. Male C57BL/6 wild type (WT) and AppNL-G-F mice were randomly divided into four groups: vehicle control, oral probiotic, dextran sulfate sodium (DSS), and DSS given with probiotics. As anticipated, probiotic treatment attenuated the DSS-induced colitis disease activity index in WT and AppNL-G-F mice. Although probiotic feeding significantly attenuated the DSS-mediated increase in WT colonic lipocalin levels, it was less protective in the AppNL-G-F DSS-treated group. In parallel with the intestinal changes, combined probiotic and DSS treatment increased microglial, neutrophil elastase, and 5hmC immunoreactivity while decreasing c-Fos staining compared to DSS treatment alone in the brains of WT mice. Although less abundant, probiotic combined with DSS treatment demonstrated a few similar changes in AppNL-G-F brains with increased microglial and decreased c-Fos immunoreactivity in addition to a slight increase in Aβ plaque staining. Both probiotic and DSS treatment also altered the levels of several cytokines in WT and AppNL-G-F brains, with a unique increase in the levels of TNFα and IL-2 being observed in only AppNL-G-F mice following combined DSS and probiotic treatment. Our data indicate that, while dietary probiotic intervention provides protection against the colitis-like condition, it also influences numerous glial, cytokine, and neuronal changes in the brain that may regulate brain function and the progression of AD.
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Affiliation(s)
- Bijayani Sahu
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | - Lauren M. Johnson
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | - Mona Sohrabi
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | - Anastasia A. Usatii
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | - Rachel M. J. Craig
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | - Joshua B. Kaelberer
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | - Sathiya Priya Chandrasekaran
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | | | - Suba Nookala
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
| | - Colin K. Combs
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (B.S.); (L.M.J.); (M.S.); (A.A.U.); (R.M.J.C.); (J.B.K.); (S.P.C.); (S.N.)
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50
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Evariste L, Lamas B, Ellero-Simatos S, Khoury L, Cartier C, Gaultier E, Chassaing B, Feltin N, Devoille L, Favre G, Audebert M, Houdeau E. A 90-day oral exposure to food-grade gold at relevant human doses impacts the gut microbiota and the local immune system in a sex-dependent manner in mice. Part Fibre Toxicol 2023; 20:27. [PMID: 37443115 DOI: 10.1186/s12989-023-00539-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 07/06/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Edible gold (Au) is commonly used as a food additive (E175 in EU) for confectionery and cake decorations, coatings and in beverages. Food-grade gold is most often composed of thin Au sheets or flakes exhibiting micro- and nanometric dimensions in their thickness. Concerns about the impact of mineral particles used as food additives on human health are increasing with respect to the particular physico-chemical properties of nanosized particles, which enable them to cross biological barriers and interact with various body cell compartments. In this study, male and female mice were exposed daily to E175 or an Au nanomaterial (Ref-Au) incorporated into food at relevant human dose for 90 days in order to determine the potential toxicity of edible gold. RESULTS E175 or Ref-Au exposure in mice did not induce any histomorphological damage of the liver, spleen or intestine, nor any genotoxic effects in the colon and liver despite an apparent higher intestinal absorption level of Au particles in mice exposed to Ref-Au compared to the E175 food additive. No changes in the intestinal microbiota were reported after treatment with Ref-Au, regardless of sex. In contrast, after E175 exposure, an increase in the Firmicutes/Bacteroidetes ratio and in the abundance of Proteobacteria were observed in females, while a decrease in the production of short-chain fatty acids occurred in both sexes. Moreover, increased production of IL-6, TNFα and IL-1β was observed in the colon of female mice at the end of the 90-day exposure to E175, whereas, decreased IL-6, IL-1β, IL-17 and TGFβ levels were found in the male colon. CONCLUSIONS These results revealed that a 90-day exposure to E175 added to the diet alters the gut microbiota and intestinal immune response in a sex-dependent manner in mice. Within the dose range of human exposure to E175, these alterations remained low in both sexes and mostly appeared to be nontoxic. However, at the higher dose, the observed gut dysbiosis and the intestinal low-grade inflammation in female mice could favour the occurrence of metabolic disorders supporting the establishment of toxic reference values for the safe use of gold as food additive.
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Affiliation(s)
- Lauris Evariste
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Bruno Lamas
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Sandrine Ellero-Simatos
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | | | - Christel Cartier
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Eric Gaultier
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Benoit Chassaing
- INSERM U1016, Team "Mucosal Microbiota in Chronic Inflammatory Diseases", CNRS UMR 8104, Université de Paris, Paris, France
| | | | | | | | - Marc Audebert
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
- PrediTox, Toulouse, France
| | - Eric Houdeau
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France.
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