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Salem MB, Elzallat M, Mostafa Mohammed D, Hammam OA, Tamim A Abdel-Wareth M, Hassan M. Helix pomatia mucin alleviates DSS-induced colitis in mice: Unraveling the cross talk between microbiota and intestinal chemokine. Heliyon 2024; 10:e37362. [PMID: 39296159 PMCID: PMC11407997 DOI: 10.1016/j.heliyon.2024.e37362] [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: 04/08/2024] [Revised: 08/17/2024] [Accepted: 09/02/2024] [Indexed: 09/21/2024] Open
Abstract
Gut microbiota imbalance and alterations in the chemokine-chemokine receptor interactions are pivotal in the initiation and advancement of ulcerative colitis (UC). The current UC treatments are prolonged, exhibit high recurrence rates, and may lead to colorectal cancer. So, this study explores the efficacy of Helix pomatia (H. pomatia) mucin in preventing DSS-induced UC. This research focuses on investigating the underlying mechanisms, such as oxidative stress, inflammation, and alterations in gut microbiota and chemokine-chemokine receptor interactions, to understand the anti-inflammatory and antioxidant characteristics of the mucin. Using 4 % DSS in drinking water, UC was induced in C57BL/6 mice. For seven days, mice were given oral doses of either H. pomatia mucin or sulfasalazine. The study assessed changes in oxidative stress, gut microbiota, and histopathology, along with expression of IL-6, CXCR4, CCR7, CXCL9, and CXCL10. The H. pomatia mucin exhibited unique contents, including high glycolic acid (200 ± 2.08 mg/L), collagen (88 ± 2.52 mg/L), allantoin (20 ± 2 mg/L), and concentrated vitamins and minerals. Treatment with H. pomatia mucin in high dose demonstrated reduction in DAI, an increase in fecal Firmicutes, and elevated expression of colonic CCR7, CXCL9, and CXCL10, accompanied by enhanced CXCR4 (75 %) and diminished IL-6 (1.33 %) immunostaining. It also alleviated oxidative stress, reduced fecal Bacteroidetes, and mitigated inflammation, indicating its potential efficacy against DSS-induced UC. In conclusion, H. pomatia mucin is a promising candidate that could be an effective adjuvant in the management and prophylaxis of UC.
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Affiliation(s)
- Maha B Salem
- Pharmacology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Mohamed Elzallat
- Immunology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Dina Mostafa Mohammed
- Nutrition and Food Sciences Department, National Research Centre, Dokki, Giza, 12622, Egypt
| | - Olfat A Hammam
- Pathology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | | | - Marwa Hassan
- Immunology Department, Theodor Bilharz Research Institute, Giza, Egypt
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2
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Gryaznova M, Smirnova Y, Burakova I, Morozova P, Lagutina S, Chizhkov P, Korneeva O, Syromyatnikov M. Fecal Microbiota Characteristics in Constipation-Predominant and Mixed-Type Irritable Bowel Syndrome. Microorganisms 2024; 12:1414. [PMID: 39065182 PMCID: PMC11278693 DOI: 10.3390/microorganisms12071414] [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: 06/20/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is a common condition that affects the lifestyle of patients. It is associated with significant changes in the composition of the gut microbiome, but the underlying microbial mechanisms remain to be fully understood. We study the fecal microbiome of patients with constipation-predominant IBS (IBS-C) and mixed-type IBS (IBS-M). METHODS We sequenced the V3 region of the 16S rRNA on the Ion Torrent PGM sequencing platform to study the microbiome. RESULTS In the patients with IBS-C and IBS-M, an increase in alpha diversity was found, compared to the healthy group, and differences in beta diversity were also noted. At the phylum level, both IBS subtypes showed an increase in the Firmicutes/Bacteroidetes ratio, as well as an increase in the abundance of Actinobacteria and Verrucomicrobiota. Changes in some types of bacteria were characteristic of only one of the IBS subtypes, while no statistically significant differences in the composition of the microbiome were detected between IBS-C and IBS-M. CONCLUSIONS This study was the first to demonstrate the association of Turicibacter sanguinis, Mitsuokella jalaludinii, Erysipelotrichaceae UCG-003, Senegalimassilia anaerobia, Corynebacterium jeikeium, Bacteroides faecichinchillae, Leuconostoc carnosum, and Parabacteroides merdae with IBS subtypes.
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Affiliation(s)
- Mariya Gryaznova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Yuliya Smirnova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Inna Burakova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Polina Morozova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia;
| | - Svetlana Lagutina
- Department of Polyclinic Therapy, Voronezh State Medical University Named after N.N. Burdenko, 394036 Voronezh, Russia;
| | - Pavel Chizhkov
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia;
| | - Olga Korneeva
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Mikhail Syromyatnikov
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia;
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3
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Custers E, Vreeken D, Schuren F, van den Broek TJ, van Dongen L, Geenen B, de Blaauw I, Wiesmann M, Hazebroek EJ, Kleemann R, Kiliaan AJ. Impact of Microbiota and Metabolites on Intestinal Integrity and Inflammation in Severe Obesity. Pharmaceuticals (Basel) 2024; 17:918. [PMID: 39065768 PMCID: PMC11279642 DOI: 10.3390/ph17070918] [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: 06/18/2024] [Revised: 07/03/2024] [Accepted: 07/07/2024] [Indexed: 07/28/2024] Open
Abstract
Obesity is a multifactorial disease associated with low-grade inflammation. The gut is thought to be involved in obesity-related inflammation, as it is continuously exposed to antigens from food, microbiota and metabolites. However, the exact underlying mechanisms are still unknown. Therefore, we examined the relation between gut pathology, microbiota, its metabolites and cytokines in adults with severe obesity. Individuals eligible for bariatric surgery were included. Fecal and plasma samples were collected at surgery timepoint, to assess microbiota and metabolite composition. Jejunal biopsies were collected during surgery and stained for cytotoxic T cells, macrophages, mast cells and tight junction component zonula occludens-1. Based on these stainings, the cohort was divided into four groups: high versus low intestinal inflammation and high versus low intestinal integrity. We found no significant differences in microbiota diversity between groups, nor for individual bacterial species. No significant differences in metabolites were observed between the intestinal inflammatory groups. However, some metabolites and cytokines differed between the intestinal integrity groups. Higher plasma levels of interleukin-8 and tauro-chenodeoxycholic acid were found, whereas isovaleric acid and acetic acid were lower in the high intestinal integrity group. As the results were very subtle, we suggest that our cohort shows very early and minor intestinal pathology.
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Affiliation(s)
- Emma Custers
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Radboud Alzheimer Center, Donders Institute for Brain Cognition and Behaviour, Center for Medical Neuroscience, 6500 HB Nijmegen, The Netherlands; (E.C.); (B.G.); (M.W.)
- Department of Bariatric Surgery, Vitalys, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands;
| | - Debby Vreeken
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Radboud Alzheimer Center, Donders Institute for Brain Cognition and Behaviour, Center for Medical Neuroscience, 6500 HB Nijmegen, The Netherlands; (E.C.); (B.G.); (M.W.)
- Department of Bariatric Surgery, Vitalys, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands;
| | - Frank Schuren
- Department of Metabolic Health Research, The Netherlands Organization for Applied Scientific Research (TNO), 2333 BE Leiden, The Netherlands; (F.S.); (R.K.)
| | - Tim J. van den Broek
- Department of Metabolic Health Research, The Netherlands Organization for Applied Scientific Research (TNO), 2333 BE Leiden, The Netherlands; (F.S.); (R.K.)
| | - Lieke van Dongen
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Radboud Alzheimer Center, Donders Institute for Brain Cognition and Behaviour, Center for Medical Neuroscience, 6500 HB Nijmegen, The Netherlands; (E.C.); (B.G.); (M.W.)
| | - Bram Geenen
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Radboud Alzheimer Center, Donders Institute for Brain Cognition and Behaviour, Center for Medical Neuroscience, 6500 HB Nijmegen, The Netherlands; (E.C.); (B.G.); (M.W.)
| | - Ivo de Blaauw
- Division of Pediatric Surgery, Department of Surgery, Radboudumc-Amalia Children’s Hospital, 6525 GA Nijmegen, The Netherlands;
| | - Maximilian Wiesmann
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Radboud Alzheimer Center, Donders Institute for Brain Cognition and Behaviour, Center for Medical Neuroscience, 6500 HB Nijmegen, The Netherlands; (E.C.); (B.G.); (M.W.)
| | - Eric J. Hazebroek
- Department of Bariatric Surgery, Vitalys, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands;
- Division of Human Nutrition and Health, Wageningen University and Research, 6708 WE Wageningen, The Netherlands
| | - Robert Kleemann
- Department of Metabolic Health Research, The Netherlands Organization for Applied Scientific Research (TNO), 2333 BE Leiden, The Netherlands; (F.S.); (R.K.)
| | - Amanda J. Kiliaan
- Department of Medical Imaging, Anatomy, Radboud University Medical Center, Radboud Alzheimer Center, Donders Institute for Brain Cognition and Behaviour, Center for Medical Neuroscience, 6500 HB Nijmegen, The Netherlands; (E.C.); (B.G.); (M.W.)
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Ashiqueali SA, Chaudhari D, Zhu X, Noureddine S, Siddiqi S, Garcia DN, Gostynska A, Stawny M, Rubis B, Zanini BM, Mansoor MAM, Schneider A, Naser SA, Yadav H, Masternak MM. Fisetin modulates the gut microbiota alongside biomarkers of senescence and inflammation in a DSS-induced murine model of colitis. GeroScience 2024; 46:3085-3103. [PMID: 38191834 PMCID: PMC11009197 DOI: 10.1007/s11357-024-01060-z] [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: 12/11/2023] [Accepted: 01/01/2024] [Indexed: 01/10/2024] Open
Abstract
Colitis, a subtype of inflammatory bowel disease (IBD), is a multifactorial disorder characterized by chronic inflammation of the colon. Among various experimental models used in the study of IBD, the chemical colitogenic dextran sulfate sodium (DSS) is most commonly employed to induce colitis in vivo. In the search for new therapeutic strategies, Fisetin, a flavonoid found in many fruits and vegetables, has recently garnered attention for its senolytic properties. Female mice were administered 2.5% DSS in sterile drinking water and were subsequently treated with Fisetin or vehicle by oral gavage. DSS significantly upregulated beta-galactosidase activity in colonic proteins, while Fisetin remarkably inhibited its activity to baseline levels. Particularly, qPCR revealed that the senescence and inflammation markers Vimentin and Ptgs2 were elevated by DSS exposure with Fisetin treatment inhibiting the expression of p53, Bcl2, Cxcl1, and Mcp1, indicating that the treatment reduced senescent cell burden in the DSS targeted intestine. Alongside, senescence and inflammation associated miRNAs miR-149-5p, miR-96-5p, miR-34a-5p, and miR-30e-5p were significantly inhibited by DSS exposure and restored by Fisetin treatment, revealing novel targets for the treatment of IBDs. Metagenomics was implemented to assess impacts on the microbiota, with DSS increasing the prevalence of bacteria in the phyla Bacteroidetes. Meanwhile, Fisetin restored gut health through increased abundance of Akkermansia muciniphila, which is negatively correlated with senescence and inflammation. Our study suggests that Fisetin mitigates DSS-induced colitis by targeting senescence and inflammation and restoring beneficial bacteria in the gut indicating its potential as a therapeutic intervention for IBDs.
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Affiliation(s)
- Sarah A Ashiqueali
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Diptaraj Chaudhari
- University of South Florida Morsani College of Medicine, Neurosurgery & Brain Repair, Tampa, FL, USA
| | - Xiang Zhu
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Sarah Noureddine
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Sarah Siddiqi
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Driele N Garcia
- Faculdade de Nutricao, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Aleksandra Gostynska
- Poznan University of Medical Sciences, Department of Pharmaceutical Chemistry, Poznan, Poland
| | - Maciej Stawny
- Poznan University of Medical Sciences, Department of Pharmaceutical Chemistry, Poznan, Poland
| | - Blazej Rubis
- Poznan University of Medical Sciences, Department of Pharmaceutical Chemistry, Poznan, Poland
| | - Bianka M Zanini
- Faculdade de Nutricao, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Mishfak A M Mansoor
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Augusto Schneider
- Faculdade de Nutricao, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Saleh A Naser
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Hariom Yadav
- University of South Florida Morsani College of Medicine, Neurosurgery & Brain Repair, Tampa, FL, USA
| | - Michal M Masternak
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA.
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poznan, Poland.
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5
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Nissen L, Casciano F, Chiarello E, Di Nunzio M, Bordoni A, Gianotti A. Sourdough process and spirulina-enrichment can mitigate the limitations of colon fermentation performances of gluten-free breads in non-celiac gut model. Food Chem 2024; 436:137633. [PMID: 37839115 DOI: 10.1016/j.foodchem.2023.137633] [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: 03/24/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
In this work, the impact of gluten free (GF) breads enriched with spirulina on the ecology of the colon microbiota of non-celiac volunteers was investigated. Simulation of digestion of GF breads was conducted with an in vitro gut model. Microbiomics and metabolomics analyses were done during colon fermentations to study the modulation of the microbiota. From the results, a general increase in Proteobacteria and no reduction of detrimental microbial metabolites were observed in any conditions. Notwithstanding, algae enriched sourdough breads showed potential functionalities, as the improvement of some health-related ecological indicators, like i) microbiota eubiosis; ii) production of bioactive volatile organic fatty acids; iii) production of bioactives terpenes. Our results indicate that a sourdough fermentation and algae enrichment can mitigate the negative effect of GF breads on gut microbiota of non-celiac consumers.
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Affiliation(s)
- Lorenzo Nissen
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CIRI - Interdepartmental Centre of Agri-Food Industrial Research, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CRBA, Centre for Applied Biomedical Research, Alma Mater Studiorum - University of Bologna, Policlinico di Sant'Orsola, Bologna 40100, Italy.
| | - Flavia Casciano
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CRBA, Centre for Applied Biomedical Research, Alma Mater Studiorum - University of Bologna, Policlinico di Sant'Orsola, Bologna 40100, Italy.
| | - Elena Chiarello
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy.
| | - Mattia Di Nunzio
- Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, via Celoria 2, 20133 Milan, Italy.
| | - Alessandra Bordoni
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CIRI - Interdepartmental Centre of Agri-Food Industrial Research, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy.
| | - Andrea Gianotti
- DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CIRI - Interdepartmental Centre of Agri-Food Industrial Research, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60, 47521 Cesena, Italy; CRBA, Centre for Applied Biomedical Research, Alma Mater Studiorum - University of Bologna, Policlinico di Sant'Orsola, Bologna 40100, Italy.
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6
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Sugihara K, Kamada N. Metabolic network of the gut microbiota in inflammatory bowel disease. Inflamm Regen 2024; 44:11. [PMID: 38443988 PMCID: PMC10913301 DOI: 10.1186/s41232-024-00321-w] [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: 12/07/2023] [Accepted: 02/07/2024] [Indexed: 03/07/2024] Open
Abstract
Gut dysbiosis is closely linked to the pathogenesis of inflammatory bowel disease (IBD). Emerging studies highlight the relationship between host metabolism and the modulation of gut microbiota composition through regulating the luminal microenvironment. In IBD, various disease-associated factors contribute to the significant perturbation of host metabolism. Such disturbance catalyzes the selective proliferation of specific microbial populations, particularly pathobionts such as adherent invasive Escherichia coli and oral-derived bacteria. Pathobionts employ various strategies to adapt better to the disease-associated luminal environments. In addition to the host-microbe interaction, recent studies demonstrate that the metabolic network between commensal symbionts and pathobionts facilitates the expansion of pathobionts in the inflamed gut. Understanding the metabolic network among the host, commensal symbionts, and pathobionts provides new insights into the pathogenesis of IBD and novel avenues for treating IBD.
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Affiliation(s)
- Kohei Sugihara
- WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Nobuhiko Kamada
- WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan.
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA.
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA.
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7
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Young SM, Woode RA, Williams EC, Ericsson AC, Clarke LL. Fecal dysbiosis and inflammation in intestinal-specific Cftr knockout mice on regimens preventing intestinal obstruction. Physiol Genomics 2024; 56:247-264. [PMID: 38073491 PMCID: PMC11283905 DOI: 10.1152/physiolgenomics.00077.2023] [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: 07/26/2023] [Revised: 11/08/2023] [Accepted: 12/03/2023] [Indexed: 12/26/2023] Open
Abstract
Chronic intestinal inflammation is a poorly understood manifestation of cystic fibrosis (CF), which may be refractory to ion channel CF transmembrane conductance regulator (CFTR) modulator therapy. People with CF exhibit intestinal dysbiosis, which has the potential for stimulating intestinal and systemic inflammation. CFTR is expressed in organ epithelia, leukocytes, and other tissues. Here, we investigate the contribution of intestinal epithelium-specific loss of Cftr [iCftr knockout (KO)] to dysbiosis and inflammation in mice treated with either of two antiobstructive dietary regimens necessary to maintain CF mouse models [polyethylene glycol (PEG) laxative or a liquid diet (LiqD)]. Feces collected from iCftr KO mice and their wild-type (WT) sex-matched littermates were used to measure fecal calprotectin to evaluate inflammation and to perform 16S rRNA sequencing to characterize the gut microbiome. Fecal calprotectin was elevated in iCftr KO relative to WT mice that consumed either PEG or LiqD. PEG iCftr KO mice did not show a change in α diversity versus WT mice but demonstrated a significant difference in microbial composition (β diversity) with included increases in the phylum Proteobacteria, the family Peptostreptococcaceae, four genera of Clostridia including C. innocuum, and the mucolytic genus Akkermansia. Fecal microbiome analysis of LiqD-fed iCftr KO mice showed both decreased α diversity and differences in microbial composition with increases in the Proteobacteria family Enterobacteriaceae, Firmicutes families Clostridiaceae and Peptostreptococcaceae, and enrichment of Clostridium perfringens, C. innocuum, C. difficile, mucolytic Ruminococcus gnavus, and reduction of Akkermansia. It was concluded that epithelium-specific loss of Cftr is a major driver of CF intestinal dysbiosis and inflammation with significant similarities to previous studies of pan Cftr KO mice.NEW & NOTEWORTHY Chronic intestinal inflammation is a manifestation of cystic fibrosis (CF), a disease caused by loss of the anion channel CF transmembrane conductance regulator (CFTR) that is expressed in many tissues. This study shows that intestinal epithelial cell-specific loss of CFTR [inducible Cftr knockout (KO)] in mice is sufficient to induce intestinal dysbiosis and inflammation. Experiments were performed on mice consuming two dietary regimens routinely used to prevent obstruction in CF mice.
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Affiliation(s)
- Sarah M Young
- College of Veterinary Medicine, University of Missouri Comparative Medicine Program, Columbia, Missouri, United States
| | - Rowena A Woode
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Estela C Williams
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Aaron C Ericsson
- College of Veterinary Medicine, University of Missouri Comparative Medicine Program, Columbia, Missouri, United States
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, United States
- College of Veterinary Medicine, University of Missouri Metagenomics Center, Columbia, Missouri, United States
| | - Lane L Clarke
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri, United States
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8
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Huang CH, Yu S, Yu HS, Tu HP, Yeh YT, Yu HS. Chronic blue light-emitting diode exposure harvests gut dysbiosis related to cholesterol dysregulation. Front Cell Infect Microbiol 2024; 13:1320713. [PMID: 38259967 PMCID: PMC10800827 DOI: 10.3389/fcimb.2023.1320713] [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: 10/12/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024] Open
Abstract
Night shift workers have been associated with circadian dysregulation and metabolic disorders, which are tightly coevolved with gut microbiota. The chronic impacts of light-emitting diode (LED) lighting at night on gut microbiota and serum lipids were investigated. Male C57BL/6 mice were exposed to blue or white LED lighting at Zeitgeber time 13.5-14 (ZT; ZT0 is the onset of "lights on" and ZT12 is the "lights off" onset under 12-hour light, 12-hour dark schedule). After 33 weeks, only the high irradiance (7.2 J/cm2) of blue LED light reduced the alpha diversity of gut microbiota. The high irradiance of white LED light and the low irradiance (3.6 J/cm2) of both lights did not change microbial alpha diversity. However, the low irradiance, but not the high one, of both blue and white LED illuminations significantly increased serum total cholesterol (TCHO), but not triglyceride (TG). There was no significant difference of microbial abundance between two lights. The ratio of beneficial to harmful bacteria decreased at a low irradiance but increased at a high irradiance of blue light. Notably, this ratio was negatively correlated with serum TCHO but positively correlated with bile acid biosynthesis pathway. Therefore, chronic blue LED lighting at a high irradiance may harvest gut dysbiosis in association with decreased alpha diversity and the ratio of beneficial to harmful bacteria to specifically dysregulates TCHO metabolism in mice. Night shift workers are recommended to be avoid of blue LED lighting for a long and lasting time.
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Affiliation(s)
- Cheng-Hsieh Huang
- Ph. D. Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University and National Health Research Institutes, Kaohsiung, Taiwan
- Aging and Disease Prevention Research Center, Fooyin University, Kaohsiung, Taiwan
| | - Sebastian Yu
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsu-Sheng Yu
- Department of Food Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Hung-Pin Tu
- Department of Public Health and Environmental Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yao-Tsung Yeh
- Aging and Disease Prevention Research Center, Fooyin University, Kaohsiung, Taiwan
- Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung, Taiwan
| | - Hsin-Su Yu
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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9
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Bradley E, Haran J. The human gut microbiome and aging. Gut Microbes 2024; 16:2359677. [PMID: 38831607 PMCID: PMC11152108 DOI: 10.1080/19490976.2024.2359677] [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: 01/19/2024] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
The composition of the human gut microbiome has been observed to change over the course of an individual's life. From birth, it is shaped by mode of delivery, diet, environmental exposures, geographic location, exposures to medications, and by aging itself. Here, we present a narrative review of the gut microbiome across the lifespan with a focus on its impacts on aging and age-related diseases in humans. We will describe how it is shaped, and features of the gut microbiome that have been associated with diseases at different phases of life and how this can adversely affect healthy aging. Across the lifespan, and especially in old age, a diverse microbiome that includes organisms suspected to produce anti-inflammatory metabolites such as short-chain fatty acids, has been reported to be associated with healthy aging. These findings have been remarkably consistent across geographic regions of the world suggesting that they could be universal features of healthy aging across all cultures and genetic backgrounds. Exactly how these features of the microbiome affect biologic processes associated with aging thus promoting healthy aging will be crucial to targeting the gut microbiome for interventions that will support health and longevity.
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Affiliation(s)
- Evan Bradley
- UMass Chan Medical School, Department of Emergency Medicine and Department of Microbiology and Physiologic Systems, Program in Microbiome Dynamics, Worcester, MA, USA
| | - John Haran
- UMass Chan Medical School, Department of Emergency Medicine and Department of Microbiology and Physiologic Systems, Program in Microbiome Dynamics, Worcester, MA, USA
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10
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Do KH, Ko SH, Kim KB, Seo K, Lee WK. Comparative Study of Intestinal Microbiome in Patients with Ulcerative Colitis and Healthy Controls in Korea. Microorganisms 2023; 11:2750. [PMID: 38004761 PMCID: PMC10673479 DOI: 10.3390/microorganisms11112750] [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: 09/30/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Ulcerative colitis (UC) poses a contemporary medical challenge, with its exact cause still eluding researchers. This is due to various factors, such as the rising incidence, diagnostic complexities, and difficulties associated with its management. We compared the intestinal microbiome of patients with UC to that of healthy controls to determine the qualitative and quantitative changes associated with UC that occur in the intestinal microbiota. The intestinal bacterial abundance in 40 Korean patients with UC and 25 healthy controls was assayed using via next-generation sequencing. There were five major phyla in both groups: Firmicutes (UC patients: 51.12%; healthy controls: 46.90%), Bacteroidota (UC patients: 37.04%; healthy controls: 40.34%), Proteobacteria (UC patients: 6.01%; healthy controls: 11.05%), Actinobacteriota (UC patients: 5.71%; healthy controls: 1.56%), and Desulfobacteriota (UC patients: 0.13%; healthy controls: 0.14%). Firmicutes was more prevalent in patients with UC (51.12%) compared to that of healthy controls (46.90%). Otherwise, Bacteroidota was more prevalent in healthy controls (40.34%) compared to patients with UC (37.04%). Although there was no significant difference, our results showed a substantially lower gut microbiome diversity in patients with UC (mean: 16.5; 95% confidence interval (CI) = 14.956-18.044) than in healthy controls (mean: 17.84; 95% CI = 15.989-19.691), the beta diversity and the flora structure of the microbiome in patients with UC differed from those in healthy controls. This will be helpful for the development of new treatment options and lay the groundwork for future research on UC. To understand the disease mechanism, it is essential to define the different types of microbes in the guts of patients with UC.
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Affiliation(s)
- Kyung-Hyo Do
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea;
| | - Seung-Hyun Ko
- GutBiomeTech Co., Ltd., Cheongju 28644, Republic of Korea
| | - Ki Bae Kim
- Department of Internal Medicine, Chungbuk National University Hospital, Cheongju 28644, Republic of Korea
| | - Kwangwon Seo
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea;
| | - Wan-Kyu Lee
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea;
- GutBiomeTech Co., Ltd., Cheongju 28644, Republic of Korea
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11
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Krishnamurthy HK, Pereira M, Bosco J, George J, Jayaraman V, Krishna K, Wang T, Bei K, Rajasekaran JJ. Gut commensals and their metabolites in health and disease. Front Microbiol 2023; 14:1244293. [PMID: 38029089 PMCID: PMC10666787 DOI: 10.3389/fmicb.2023.1244293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose of review This review comprehensively discusses the role of the gut microbiome and its metabolites in health and disease and sheds light on the importance of a holistic approach in assessing the gut. Recent findings The gut microbiome consisting of the bacteriome, mycobiome, archaeome, and virome has a profound effect on human health. Gut dysbiosis which is characterized by perturbations in the microbial population not only results in gastrointestinal (GI) symptoms or conditions but can also give rise to extra-GI manifestations. Gut microorganisms also produce metabolites (short-chain fatty acids, trimethylamine, hydrogen sulfide, methane, and so on) that are important for several interkingdom microbial interactions and functions. They also participate in various host metabolic processes. An alteration in the microbial species can affect their respective metabolite concentrations which can have serious health implications. Effective assessment of the gut microbiome and its metabolites is crucial as it can provide insights into one's overall health. Summary Emerging evidence highlights the role of the gut microbiome and its metabolites in health and disease. As it is implicated in GI as well as extra-GI symptoms, the gut microbiome plays a crucial role in the overall well-being of the host. Effective assessment of the gut microbiome may provide insights into one's health status leading to more holistic care.
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Affiliation(s)
| | | | - Jophi Bosco
- Vibrant America LLC., San Carlos, CA, United States
| | | | | | | | - Tianhao Wang
- Vibrant Sciences LLC., San Carlos, CA, United States
| | - Kang Bei
- Vibrant Sciences LLC., San Carlos, CA, United States
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12
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Albuquerque A, Garrido N, Charneca R, Egas C, Martin L, Ramos A, Costa F, Marmelo C, Martins JM. Influence of Sex and a High-Fiber Diet on the Gut Microbiome of Alentejano Pigs Raised to Heavy Weights. Vet Sci 2023; 10:641. [PMID: 37999464 PMCID: PMC10675691 DOI: 10.3390/vetsci10110641] [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: 09/25/2023] [Revised: 10/22/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023] Open
Abstract
This study investigates the influence of sex and a dietary transition on the gut microbiota of a local Portuguese pig breed. Three groups of male Alentejano pigs (n = 10 each) were raised between ~40 and 160 kg LW. Group C included pigs that were surgically castrated, while the I group included intact ones; both were fed with commercial diets. The third group, IExp, included intact pigs that were fed commercial diets until ~130 kg, then replaced by an experimental diet based on legumes and agro-industrial by-products between ~130 and 160 kg. Fecal samples were collected two weeks before slaughter. The total DNA was extracted and used for 16S metabarcoding on a MiSeq® System. The dietary transition from a commercial diet to the experimental diet substantially increased and shifted the diversity observed. Complex carbohydrate fermenting bacteria, such as Ruminococcus spp. and Sphaerochaeta spp., were significantly more abundant in IExp (q < 0.05). On the other hand, castrated pigs presented a significantly lower abundance of the potential probiotic, Roseburia spp. and Lachnospiraceae NK4A136 group (q < 0.01), bacteria commonly associated with better gut health and lower body fat composition. Understanding the role of gut microbiota is paramount to ensure a low skatole deposition and consumers' acceptance of pork products from non-castrated male pigs.
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Affiliation(s)
- André Albuquerque
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Nicolás Garrido
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- Escola Superior Agrária de Elvas, Departamento de Ciência Agrárias e Veterinárias, Edifício Quartel do Trem, Avenida 14 de Janeiro n° 21, 7350-092 Elvas, Portugal
| | - Rui Charneca
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED & CHANGE, Departamento de Zootecnia, ECT–Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Conceição Egas
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal;
- Next Generation Sequencing Unit, Biocant, 3060-197 Cantanhede, Portugal
| | - Luísa Martin
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- Departamento de Ciências Agrárias e Tecnologias, Escola Superior Agrária de Coimbra, Bencanta, 3045-601 Coimbra, Portugal
| | - Amélia Ramos
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- Departamento de Ciências Agrárias e Tecnologias, Escola Superior Agrária de Coimbra, Bencanta, 3045-601 Coimbra, Portugal
| | - Filipa Costa
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
| | - Carla Marmelo
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - José Manuel Martins
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED & CHANGE, Departamento de Zootecnia, ECT–Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
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13
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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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14
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Zhou X, Lian P, Liu H, Wang Y, Zhou M, Feng Z. Causal Associations between Gut Microbiota and Different Types of Dyslipidemia: A Two-Sample Mendelian Randomization Study. Nutrients 2023; 15:4445. [PMID: 37892520 PMCID: PMC10609956 DOI: 10.3390/nu15204445] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
The determination of a causal association between gut microbiota and a range of dyslipidemia remains uncertain. To clarify these associations, we employed a two-sample Mendelian randomization (MR) analysis utilizing the inverse-variance weighted (IVW) method. This comprehensive analysis investigated the genetic variants that exhibited a significant association (p < 5 × 10-8) with 129 distinct gut microbiota genera and their potential link to different types of dyslipidemia. The results indicated a potential causal association between 22 gut microbiota genera and dyslipidemia in humans. Furthermore, these findings suggested that the impact of gut microbiota on dyslipidemia regulation is dependent on the specific phylum, family, and genus. Bacillota phylum demonstrated the greatest diversity, with 15 distinct genera distributed among eight families. Notably, gut microbiota-derived from the Lachnospiraceae and Lactobacillaceae families exhibit statistically significant associations with lipid levels that contribute to overall health (p < 0.05). The sensitivity analysis indicated that our findings possess robustness (p > 0.05). The findings of our investigation provide compelling evidence that substantiates a causal association between the gut microbiota and dyslipidemia in the human body. It is noteworthy to highlight the significant influence of the Bacillota phylum as a crucial regulator of lipid levels, and the families Lachnospiraceae and Lactobacillaceae should be recognized as probiotics that significantly contribute to this metabolic process.
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Affiliation(s)
| | | | | | | | - Meijuan Zhou
- Department of Radiation Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, NMPA Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou 510515, China; (X.Z.); (P.L.); (H.L.); (Y.W.)
| | - Zhijun Feng
- Department of Radiation Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, NMPA Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou 510515, China; (X.Z.); (P.L.); (H.L.); (Y.W.)
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15
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Pratelli G, Tamburini B, Carlisi D, De Blasio A, D’Anneo A, Emanuele S, Notaro A, Affranchi F, Giuliano M, Seidita A, Lauricella M, Di Liberto D. Foodomics-Based Approaches Shed Light on the Potential Protective Effects of Polyphenols in Inflammatory Bowel Disease. Int J Mol Sci 2023; 24:14619. [PMID: 37834065 PMCID: PMC10572570 DOI: 10.3390/ijms241914619] [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: 08/22/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic and progressive inflammatory disorder affecting the gastrointestinal tract (GT) caused by a wide range of genetic, microbial, and environmental factors. IBD is characterized by chronic inflammation and decreased gut microbial diversity, dysbiosis, with a lower number of beneficial bacteria and a concomitant increase in pathogenic species. It is well known that dysbiosis is closely related to the induction of inflammation and oxidative stress, the latter caused by an imbalance between reactive oxygen species (ROS) production and cellular antioxidant capacity, leading to cellular ROS accumulation. ROS are responsible for intestinal epithelium oxidative damage and the increased intestinal permeability found in IBD patients, and their reduction could represent a potential therapeutic strategy to limit IBD progression and alleviate its symptoms. Recent evidence has highlighted that dietary polyphenols, the natural antioxidants, can maintain redox equilibrium in the GT, preventing gut dysbiosis, intestinal epithelium damage, and radical inflammatory responses. Here, we suggest that the relatively new foodomics approaches, together with new technologies for promoting the antioxidative properties of dietary polyphenols, including novel delivery systems, chemical modifications, and combination strategies, may provide critical insights to determine the clinical value of polyphenols for IBD therapy and a comprehensive perspective for implementing natural antioxidants as potential IBD candidate treatment.
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Affiliation(s)
- Giovanni Pratelli
- Department of Physics and Chemistry (DiFC) Emilio Segrè, University of Palermo, 90128 Palermo, Italy;
| | - Bartolo Tamburini
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (B.T.); (D.C.); (S.E.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90127 Palermo, Italy;
| | - Daniela Carlisi
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (B.T.); (D.C.); (S.E.)
| | - Anna De Blasio
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy; (A.D.B.); (A.D.); (A.N.); (F.A.); (M.G.)
| | - Antonella D’Anneo
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy; (A.D.B.); (A.D.); (A.N.); (F.A.); (M.G.)
| | - Sonia Emanuele
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (B.T.); (D.C.); (S.E.)
| | - Antonietta Notaro
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy; (A.D.B.); (A.D.); (A.N.); (F.A.); (M.G.)
| | - Federica Affranchi
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy; (A.D.B.); (A.D.); (A.N.); (F.A.); (M.G.)
| | - Michela Giuliano
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy; (A.D.B.); (A.D.); (A.N.); (F.A.); (M.G.)
| | - Aurelio Seidita
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90127 Palermo, Italy;
| | - Marianna Lauricella
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (B.T.); (D.C.); (S.E.)
| | - Diana Di Liberto
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (B.T.); (D.C.); (S.E.)
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16
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Rieg T, Xue J, Stevens M, Thomas L, White J, Dominguez Rieg J. Intravenous ferric carboxymaltose and ferric derisomaltose alter the intestinal microbiome in female iron-deficient anemic mice. Biosci Rep 2023; 43:BSR20231217. [PMID: 37671923 PMCID: PMC10520285 DOI: 10.1042/bsr20231217] [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: 07/08/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 09/07/2023] Open
Abstract
Iron deficiency anemia (IDA) is a leading global health concern affecting approximately 30% of the population. Treatment for IDA consists of replenishment of iron stores, either by oral or intravenous (IV) supplementation. There is a complex bidirectional interplay between the gut microbiota, the host's iron status, and dietary iron availability. Dietary iron deficiency and supplementation can influence the gut microbiome; however, the effect of IV iron on the gut microbiome is unknown. We studied how commonly used IV iron preparations, ferric carboxymaltose (FCM) and ferric derisomaltose (FDI), affected the gut microbiome in female iron-deficient anemic mice. At the phylum level, vehicle-treated mice showed an expansion in Verrucomicrobia, mostly because of the increased abundance of Akkermansia muciniphila, along with contraction in Firmicutes, resulting in a lower Firmicutes/Bacteroidetes ratio (indicator of dysbiosis). Treatment with either FCM or FDI restored the microbiome such that Firmicutes and Bacteroidetes were the dominant phyla. Interestingly, the phyla Proteobacteria and several members of Bacteroidetes (e.g., Alistipes) were expanded in mice treated with FCM compared with those treated with FDI. In contrast, several Clostridia class members were expanded in mice treated with FDI compared with FCM (e.g., Dorea spp., Eubacterium). Our data demonstrate that IV iron increases gut microbiome diversity independently of the iron preparation used; however, differences exist between FCM and FDI treatments. In conclusion, replenishing iron stores with IV iron preparations in clinical conditions, such as inflammatory bowel disease or chronic kidney disease, could affect gut microbiome composition and consequently contribute to an altered disease outcome.
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Affiliation(s)
- Timo Rieg
- Department of Molecular Pharmacology and Physiology, Hypertension and Kidney Research Center, University of South Florida, Tampa, FL 33612, U.S.A
- James A. Haley Veterans’ Hospital, Tampa, FL 33612, U.S.A
| | - Jianxiang Xue
- Department of Molecular Pharmacology and Physiology, Hypertension and Kidney Research Center, University of South Florida, Tampa, FL 33612, U.S.A
| | - Monica Stevens
- Department of Molecular Pharmacology and Physiology, Hypertension and Kidney Research Center, University of South Florida, Tampa, FL 33612, U.S.A
| | - Linto Thomas
- Department of Molecular Pharmacology and Physiology, Hypertension and Kidney Research Center, University of South Florida, Tampa, FL 33612, U.S.A
| | | | - Jessica A. Dominguez Rieg
- Department of Molecular Pharmacology and Physiology, Hypertension and Kidney Research Center, University of South Florida, Tampa, FL 33612, U.S.A
- James A. Haley Veterans’ Hospital, Tampa, FL 33612, U.S.A
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17
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Stensballe A, Bennike TB, Ravn-Haren G, Mortensen A, Aboo C, Knudsen LA, Rühlemann MC, Birkelund S, Bang C, Franke A, Vogel U, Hansen AK, Andersen V. Impaired Abcb1a function and red meat in a translational colitis mouse model induces inflammation and alters microbiota composition. Front Med (Lausanne) 2023; 10:1200317. [PMID: 37588005 PMCID: PMC10425965 DOI: 10.3389/fmed.2023.1200317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/20/2023] [Indexed: 08/18/2023] Open
Abstract
Inflammatory Bowel Disease (IBD) affects approximately 0.3% of the global population, with incidence rates rising dramatically worldwide. Emerging evidence points to an interplay between exposome factors such as diet and gut microbiota, host genetics, and the immune system as crucial elements in IBD development. ATP-binding cassette (ABC) transporters, including human p-glycoprotein encoded by the Abcb1 gene, influence intestinal inflammation, and their expression may interact with environmental factors such as diet and gut microbes. Our study aimed to examine the impact of protein sources on a genetic colitis mouse model. Methods Abcb1a-deficient colitis mice were fed either casein or red meat-supplemented diets to investigate potential colitis-aggravating components in red meat and their effects on host-microbiota interactions. We conducted deep label free quantitative proteomic inflammation profiling of gastrointestinal tissue (colon, ileum) and urine, and determined the overall microbiome in feces using 16S rRNA gene sequencing. Microbiota shifts by diet and protein transporter impairment were addressed by multivariate statistical analysis. Colon and systemic gut inflammation were validated through histology and immune assays, respectively. Results A quantitative discovery based proteomic analysis of intestinal tissue and urine revealed associations between ileum and urine proteomes in relation to Abcb1a deficiency. The absence of Abcb1a efflux pump function and diet-induced intestinal inflammation impacted multiple systemic immune processes, including extensive neutrophil extracellular trap (NET) components observed in relation to neutrophil degranulation throughout the gastrointestinal tract. The colitis model's microbiome differed significantly from that of wild-type mice, indicating the substantial influence of efflux transporter deficiency on microbiota. Conclusion The proteomic and microbiota analyzes of a well-established murine model enabled the correlation of gastrointestinal interactions not readily identifiable in human cohorts. Insights into dysregulated biological pathways in this disease model might offer translational biomarkers based on NETs and improved understanding of IBD pathogenesis in human patients. Our findings demonstrate that drug transporter deficiency induces substantial changes in the microbiota, leading to increased levels of IBD-associated strains and resulting in intestinal inflammation. GRAPHICAL ABSTRACT.
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Affiliation(s)
- Allan Stensballe
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
- Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Tue Bjerg Bennike
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Gitte Ravn-Haren
- National Food Institute, Technical University of Denmark, Lyngby, Denmark
| | - Alicja Mortensen
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Christopher Aboo
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
- Sino-Danish Center for Research and Education, University of Chinese Academy of Sciences, Beijing, China
| | - Lina Almind Knudsen
- Institute of Regional Health Research-Center Soenderjylland, University of Southern Denmark, Odense, Denmark
| | - Malte C. Rühlemann
- Institute of Clinical Molecular Biology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Svend Birkelund
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Corinne Bang
- Institute of Clinical Molecular Biology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Ulla Vogel
- National Food Institute, Technical University of Denmark, Lyngby, Denmark
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Axel Kornerup Hansen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Vibeke Andersen
- Institute of Regional Health Research-Center Soenderjylland, University of Southern Denmark, Odense, Denmark
- Molecular Diagnostic and Clinical Research Unit, University Hospital of Southern Denmark, Aabenraa, Denmark
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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18
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Young SM, Woode RA, Williams E, Ericsson A, Clarke LL. Fecal Dysbiosis and Inflammation in Intestinal-Specific Cftr Knockout Mice on Regimens Preventing Intestinal Obstruction. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.24.550378. [PMID: 37546931 PMCID: PMC10402002 DOI: 10.1101/2023.07.24.550378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Chronic intestinal inflammation is a poorly understood manifestation of Cystic Fibrosis (CF), which may be refractory to ion channel CFTR modulator therapy. People with CF exhibit intestinal dysbiosis which has potential for stimulating intestinal and systemic inflammation. CFTR is expressed in organ epithelia and in the leukocyte population. Here, we investigate the contribution of intestinal epithelial-specific loss of Cftr (iCftr KO) to dysbiosis and inflammation in mice treated with either of two anti-obstructive dietary regimens necessary to maintain CF mouse models (PEG laxative or a liquid diet, LiqD). Feces collected from iCftr KO mice and their wildtype (WT) sex-matched littermates were used to measure fecal calprotectin and to perform 16S rRNA sequencing to characterize the gut microbiome. Fecal calprotectin was elevated in iCftr KO relative to WT samples of mice consuming either PEG or LiqD. PEG iCftr KO mice did not show a change in α-diversity versus WT but demonstrated a significant difference in microbial composition (β-diversity) with increases in phylum Proteobacteria , family Peptostreptococcaceae , four genera of Clostridia including C. innocuum , and mucolytic genus Akkermansia . Fecal microbiome analysis of LiqD iCftr KO mice showed both decreased α-diversity and differences in microbial composition with increases in Proteobacteria family Enterobacteriaceae , Firmicutes families Clostridiaceae and Peptostreptococcaceae , and enrichment of Clostridium perfringens , C. innocuum , C. difficile , mucolytic Ruminococcus gnavus , and reduction of Akkermansia . It was concluded that epithelial-specific loss of Cftr is a major driver of CF intestinal dysbiosis and inflammation with significant similarities to previous studies of global Cftr KO mice. New and noteworthy Chronic intestinal inflammation is a manifestation of cystic fibrosis (CF), a disease caused by loss of the anion channel CFTR that is expressed in many tissues. This study shows that intestinal epithelial cell-specific loss of CFTR (iCftr KO) in mice is sufficient to induce intestinal dysbiosis and inflammation. Studies were performed on mice consuming either dietary regimen (PEG laxative or liquid diet) routinely used to prevent obstruction in CF mice.
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Guan Y, Zhang Y, Zhu Y, Wang Y. CXCL10 as a shared specific marker in rheumatoid arthritis and inflammatory bowel disease and a clue involved in the mechanism of intestinal flora in rheumatoid arthritis. Sci Rep 2023; 13:9754. [PMID: 37328529 PMCID: PMC10276029 DOI: 10.1038/s41598-023-36833-7] [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: 01/04/2023] [Accepted: 06/10/2023] [Indexed: 06/18/2023] Open
Abstract
This study aimed to identify shared specific genes associated with rheumatoid arthritis (RA) and inflammatory bowel disease (IBD) through bioinformatic analysis and to examine the role of the gut microbiome in RA. The data were extracted from the 3 RA and 1 IBD gene expression datasets and 1 RA gut microbiome metagenomic dataset. Weighted correlation network analysis (WGCNA) and machine learnings was performed to identify candidate genes associated with RA and IBD. Differential analysis and two different machine learning algorithms were used to investigate RA's gut microbiome characteristics. Subsequently, the shared specific genes related to the gut microbiome in RA were identified, and an interaction network was constructed utilizing the gutMGene, STITCH, and STRING databases. We identified 15 candidates shared genes through a joint analysis of the WGCNA for RA and IBD. The candidate gene CXCL10 was identified as the shared hub gene by the interaction network analysis of the corresponding WGCNA module gene to each disease, and CXCL10 was further identified as the shared specific gene by two machine learning algorithms. Additionally, we identified 3 RA-associated characteristic intestinal flora (Prevotella, Ruminococcus, and Ruminococcus bromii) and built a network of interactions between the microbiomes, genes, and pathways. Finally, it was discovered that the gene CXCL10 shared between IBD and RA was associated with the three gut microbiomes mentioned above. This study demonstrates the relationship between RA and IBD and provides a reference for research into the role of the gut microbiome in RA.
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Affiliation(s)
- Yin Guan
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China
| | - Yue Zhang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China
| | - Yifan Zhu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China
| | - Yue Wang
- Department of Rheumatism Immunity Branch, Affiliated Hospital of Nanjing University of Chinese Medicine, No. 155 Hanzhong Road, Qinhuai, Nanjing, 210029, Jiangsu, China.
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20
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Halsey TM, Thomas AS, Hayase T, Ma W, Abu-Sbeih H, Sun B, Parra ER, Jiang ZD, DuPont HL, Sanchez C, El-Himri R, Brown A, Flores I, McDaniel L, Turrubiates MO, Hensel M, Pham D, Watowich SS, Hayase E, Chang CC, Jenq RR, Wang Y. Microbiome alteration via fecal microbiota transplantation is effective for refractory immune checkpoint inhibitor-induced colitis. Sci Transl Med 2023; 15:eabq4006. [PMID: 37315113 PMCID: PMC10759507 DOI: 10.1126/scitranslmed.abq4006] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 05/19/2023] [Indexed: 06/16/2023]
Abstract
Immune checkpoint inhibitors (ICIs) target advanced malignancies with high efficacy but also predispose patients to immune-related adverse events like immune-mediated colitis (IMC). Given the association between gut bacteria with response to ICI therapy and subsequent IMC, fecal microbiota transplantation (FMT) represents a feasible way to manipulate microbial composition in patients, with a potential benefit for IMC. Here, we present a large case series of 12 patients with refractory IMC who underwent FMT from healthy donors as salvage therapy. All 12 patients had grade 3 or 4 ICI-related diarrhea or colitis that failed to respond to standard first-line (corticosteroids) and second-line immunosuppression (infliximab or vedolizumab). Ten patients (83%) achieved symptom improvement after FMT, and three patients (25%) required repeat FMT, two of whom had no subsequent response. At the end of the study, 92% achieved IMC clinical remission. 16S rRNA sequencing of patient stool samples revealed that compositional differences between FMT donors and patients with IMC before FMT were associated with a complete response after FMT. Comparison of pre- and post-FMT stool samples in patients with complete responses showed significant increases in alpha diversity and increases in the abundances of Collinsella and Bifidobacterium, which were depleted in FMT responders before FMT. Histologically evaluable complete response patients also had decreases in select immune cells , including CD8+ T cells, in the colon after FMT when compared with non-complete response patients (n = 4). This study validates FMT as an effective treatment strategy for IMC and gives insights into the microbial signatures that may play a critical role in FMT response.
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Affiliation(s)
- Taylor M. Halsey
- Graduate School of Biomedical Sciences, Microbiology and Infectious Diseases, The University of Texas MD Anderson Cancer Center UTHealth Houston; Houston, Texas, USA
| | - Anusha S. Thomas
- Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Tomo Hayase
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Weijie Ma
- Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University; Wuhan, Hubei Province, People’s Republic of China
| | - Hamzah Abu-Sbeih
- Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
- Department of Internal Medicine, University of Missouri; Kansas City, Missouri, USA
| | - Baohua Sun
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Edwin Roger Parra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Zhi-Dong Jiang
- Center for Infectious Diseases, School of Public Health, The University of Texas; Houston, Texas, USA
| | - Herbert L. DuPont
- Center for Infectious Diseases, School of Public Health, The University of Texas; Houston, Texas, USA
- Kelsey Research Foundation; Houston, Texas, USA
| | - Christopher Sanchez
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Rawan El-Himri
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Alexandria Brown
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Ivonne Flores
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Lauren McDaniel
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Miriam Ortega Turrubiates
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | | | - Dung Pham
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Stephanie S. Watowich
- Department of Immunology, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Eiko Hayase
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Chia-Chi Chang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Robert R. Jenq
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
- Department of Stem Cell Transplantation, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
| | - Yinghong Wang
- Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center; Houston, Texas, USA
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21
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Dahal RH, Kim S, Kim YK, Kim ES, Kim J. Insight into gut dysbiosis of patients with inflammatory bowel disease and ischemic colitis. Front Microbiol 2023; 14:1174832. [PMID: 37250025 PMCID: PMC10211348 DOI: 10.3389/fmicb.2023.1174832] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/17/2023] [Indexed: 05/31/2023] Open
Abstract
The collection of whole microbial communities (bacteria, archaea, fungi, and viruses) together constitutes the gut microbiome. Diet, age, stress, host genetics, and diseases cause increases or decreases in the relative abundance and diversity of bacterial species (dysbiosis). We aimed to investigate the gut microbial composition at different taxonomic levels of healthy controls (HCs) with active Crohn's disease (CD), ulcerative colitis (UC), and ischemic colitis (IC) using culture- and non-culture-based approaches and identify biomarkers to discriminate CD, UC, or IC. We determined the specific changes in the gut microbial profile using culture-independent (16S rRNA gene amplicon sequencing) as well as culture-based (culturomic) approaches. Biomarkers were validated using quantitative Real-Time PCR (qPCR). In both methods, bacterial diversity and species richness decreased in disease-associated conditions compared with that in HCs. Highly reduced abundance of Faecalibacterium prausnitzii and Prevotella sp. and an increased abundance of potentially pathogenic bacteria such as Enterococcus faecium, Enterococcus faecalis, and Escherichia coli in all CD, UC, or IC conditions were observed. We noted a high abundance of Latilactobacillus sakei in CD patients; Ligilactobacillus ruminis in UC patients; and Enterococcus faecium, Escherichia coli, and Enterococcus faecalis in IC patients. Highly reduced abundance of Faecalibacterium prausnitzii in all cases, and increased abundance of Latilactobacillus sakei and Enterococcus faecium in CD, Ligilactobacillus ruminis and Enterococcus faecium in UC, and Enterococcus faecium, Escherichia coli, and Enterococcus faecalis in IC could be biomarkers for CD, UC, and IC, respectively. These biomarkers may help in IBD (CD or UC) and IC diagnosis.
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Affiliation(s)
- Ram Hari Dahal
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Shukho Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Yu Kyung Kim
- Department of Clinical Pathology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Eun Soo Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jungmin Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
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22
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Maes M, Vasupanrajit A, Jirakran K, Klomkliew P, Chanchaem P, Tunvirachaisakul C, Payungporn S. Exploration of the Gut Microbiome in Thai Patients with Major Depressive Disorder Shows a Specific Bacterial Profile with Depletion of the Ruminococcus Genus as a Putative Biomarker. Cells 2023; 12:cells12091240. [PMID: 37174640 PMCID: PMC10177051 DOI: 10.3390/cells12091240] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/30/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023] Open
Abstract
Maes et al. (2008) published the first paper demonstrating that major depressive disorder (MDD) is accompanied by abnormalities in the microbiota-gut-brain axis, as evidenced by elevated serum IgM/IgA to lipopolysaccharides (LPS) of Gram-negative bacteria, such as Morganella morganii and Klebsiella Pneumoniae. The latter aberrations, which point to increased gut permeability (leaky gut), are linked to activated neuro-immune and oxidative pathways in MDD. To delineate the profile and composition of the gut microbiome in Thai patients with MDD, we examined fecal samples of 32 MDD patients and 37 controls using 16S rDNA sequencing, analyzed α- (Chao1 and Shannon indices) and β-diversity (Bray-Curtis dissimilarity), and conducted linear discriminant analysis (LDA) effect size (LEfSe) analysis. Neither α- nor β-diversity differed significantly between MDD and controls. Rhodospirillaceae, Hungatella, Clostridium bolteae, Hungatella hathewayi, and Clostridium propionicum were significantly enriched in MDD, while Gracillibacteraceae family, Lutispora, and Ruminococcus genus, Ruminococcus callidus, Desulfovibrio piger, Coprococcus comes, and Gemmiger were enriched in controls. Contradictory results have been reported for all these taxa, with the exception of Ruminococcus, which is depleted in six different MDD studies (one study showed increased abundance), many medical disorders that show comorbidities with MDD, and animal MDD models. Our results may suggest a specific profile of compositional gut dysbiosis in Thai MDD patients, with increases in some pathobionts and depletion of some beneficial microbiota. The results suggest that depletion of Ruminococcus may be a more universal biomarker of MDD that may contribute to increased enteral LPS load, LPS translocation, and gut-brain axis abnormalities.
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Affiliation(s)
- Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok 10330, Thailand
- Department of Psychiatry, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
- Research Institute, Medical University Plovdiv, 4002 Plovdiv, Bulgaria
- Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Asara Vasupanrajit
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok 10330, Thailand
| | - Ketsupar Jirakran
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok 10330, Thailand
- Maximizing Thai Children's Developmental Potential Research Unit, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pavit Klomkliew
- Center of Excellence in Systems Microbiology, Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Prangwalai Chanchaem
- Center of Excellence in Systems Microbiology, Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Chavit Tunvirachaisakul
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok 10330, Thailand
| | - Sunchai Payungporn
- Center of Excellence in Systems Microbiology, Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
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23
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Wijdeveld M, van Olst N, van der Vossen EWJ, de Brauw M, Acherman YIZ, de Goffau MC, Gerdes VEA, Nieuwdorp M. Identifying Gut Microbiota associated with Gastrointestinal Symptoms upon Roux-en-Y Gastric Bypass. Obes Surg 2023:10.1007/s11695-023-06610-6. [PMID: 37093508 DOI: 10.1007/s11695-023-06610-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 04/25/2023]
Abstract
PURPOSE Roux-en-Y gastric bypasses (RYGB) are frequently accompanied by long-term gastrointestinal (GI) symptoms. Direct mechanistic insight into the causation of these symptoms is lacking, but changes in the intestinal microbiome have been proposed to play a role. With this study, we aimed to investigate whether a microbial predisposition exists before RYGB which is associated with GI symptoms during follow-up and to evaluate which microbial groups are involved. MATERIALS AND METHODS In total, 67 RYGB patients were included. Shotgun metagenomic sequencing was performed on fecal samples obtained just before and 1 year after surgery. To assess GI symptoms, patients filled out Gastrointestinal Quality of Life Index (GIQLI) questionnaires and were divided into groups based on their total GIQLI score and change in score (postsurgery versus baseline). Extremely randomized tree predictor models were used to identify the most distinctive microbial species associated with postoperative GI symptoms. RESULTS Beta diversity differed significantly between baseline and 1-year post-surgery samples, with the post-surgery microbiome resembling a more dysbiotic profile. The most predictive species regarding total GIQLI (AUC 0.77) or delta GIQLI score (AUC 0.83) were identified. Many of these species are known butyrate producers or species known to support them and/or species with anti-inflammatory properties, including Coprococcus eutactus, Faecalibacterium prausnitzii, and Ruminococcus callidus. CONCLUSION Beneficial commensal gut microbiota related to a high GI score were associated to adequate intestinal fermentative capacity, suggesting these species might have protective properties against postoperative GI malfunctioning.
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Affiliation(s)
- Madelief Wijdeveld
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Location AMC, Meibergdreef 9, Room D3-211, 1105, AZ, Amsterdam, The Netherlands.
| | - Nienke van Olst
- Department of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134, Hoofddorp, The Netherlands
| | - Eduard W J van der Vossen
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Location AMC, Meibergdreef 9, Room D3-211, 1105, AZ, Amsterdam, The Netherlands
| | - Maurits de Brauw
- Department of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134, Hoofddorp, The Netherlands
| | - Yair I Z Acherman
- Department of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134, Hoofddorp, The Netherlands
| | - Marcus C de Goffau
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Location AMC, Meibergdreef 9, Room D3-211, 1105, AZ, Amsterdam, The Netherlands
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Meibergdreef 69, 1105, BK, Amsterdam, The Netherlands
- Sanger Institute, Saffron Walden, Cambridge, CB10 1RQ, UK
| | - Victor E A Gerdes
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Location AMC, Meibergdreef 9, Room D3-211, 1105, AZ, Amsterdam, The Netherlands
- Department of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134, Hoofddorp, The Netherlands
| | - Max Nieuwdorp
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Location AMC, Meibergdreef 9, Room D3-211, 1105, AZ, Amsterdam, The Netherlands
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24
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Rosas M, Liu C, Hong MY. Effects of Mixed Nut Consumption on Blood Glucose, Insulin, Satiety, and the Microbiome in a Healthy Population: A Pilot Study. J Med Food 2023; 26:342-351. [PMID: 37083461 DOI: 10.1089/jmf.2022.0121] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
Nuts contain many health-promoting nutrients, fiber, and phytochemicals. Nut consumption has been reported to improve several chronic disease risk factors. Most studies to date have investigated single variety nut consumption. A nut mixture may offer a more diverse array of nutrients over single variety nuts. The primary outcome of this study was to examine the effects of mixed nut consumption on postprandial glucose, insulin, and satiety in healthy young adults. Exploratory outcomes include the effects of daily nut consumption on stool microbiome and bowel movement patterns. Twenty participants were randomized to consume either 42 g of mixed nuts or 46 g of potato chips daily for 3 weeks. Mixed nut consumption did not alter postprandial blood glucose and insulin, while potato chip consumption increased glucose and insulin (P < .05). There were no significant differences in fasting blood glucose or insulin for either snack after 3 weeks of daily consumption. Both snacks increased satiety while there were no significant differences in body weight, body fat, blood pressure, waist-to-hip ratio, or anxiety. After 3 weeks of snack consumption, both groups significantly reduced straining during bowel movements while the mixed nut group slightly increased stool amount. There were no significant changes in microbiome composition for either group; however, there was a nonsignificant trend toward increased Firmicutes to Bacteroidetes ratio in the potato chip group and an opposite trend in the mixed nut group. The results of this study suggest that mixed nuts are a healthy alternative for blood sugar control. The study was registered at ClinicalTrials.gov, Number: NCT03375866.
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Affiliation(s)
- Martin Rosas
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, California, USA
| | - Changqi Liu
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, California, USA
| | - Mee Young Hong
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, California, USA
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25
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Li L, Peng P, Ding N, Jia W, Huang C, Tang Y. Oxidative Stress, Inflammation, Gut Dysbiosis: What Can Polyphenols Do in Inflammatory Bowel Disease? Antioxidants (Basel) 2023; 12:antiox12040967. [PMID: 37107341 PMCID: PMC10135842 DOI: 10.3390/antiox12040967] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/12/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a long-term, progressive, and recurrent intestinal inflammatory disorder. The pathogenic mechanisms of IBD are multifaceted and associated with oxidative stress, unbalanced gut microbiota, and aberrant immune response. Indeed, oxidative stress can affect the progression and development of IBD by regulating the homeostasis of the gut microbiota and immune response. Therefore, redox-targeted therapy is a promising treatment option for IBD. Recent evidence has verified that Chinese herbal medicine (CHM)-derived polyphenols, natural antioxidants, are able to maintain redox equilibrium in the intestinal tract to prevent abnormal gut microbiota and radical inflammatory responses. Here, we provide a comprehensive perspective for implementing natural antioxidants as potential IBD candidate medications. In addition, we demonstrate novel technologies and stratagems for promoting the antioxidative properties of CHM-derived polyphenols, including novel delivery systems, chemical modifications, and combination strategies.
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Affiliation(s)
- Lei Li
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Peilan Peng
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Ning Ding
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Wenhui Jia
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Canhua Huang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Yong Tang
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
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26
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Metwaly A, Jovic J, Waldschmitt N, Khaloian S, Heimes H, Häcker D, Ahmed M, Hammoudi N, Le Bourhis L, Mayorgas A, Siebert K, Basic M, Schwerd T, Allez M, Panes J, Salas A, Bleich A, Zeissig S, Schnupf P, Cominelli F, Haller D. Diet prevents the expansion of segmented filamentous bacteria and ileo-colonic inflammation in a model of Crohn's disease. MICROBIOME 2023; 11:66. [PMID: 37004103 PMCID: PMC10064692 DOI: 10.1186/s40168-023-01508-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 02/25/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Crohn's disease (CD) is associated with changes in the microbiota, and murine models of CD-like ileo-colonic inflammation depend on the presence of microbial triggers. Increased abundance of unknown Clostridiales and the microscopic detection of filamentous structures close to the epithelium of Tnf ΔARE mice, a mouse model of CD-like ileitis pointed towards segmented filamentous bacteria (SFB), a commensal mucosal adherent bacterium involved in ileal inflammation. RESULTS We show that the abundance of SFB strongly correlates with the severity of CD-like ileal inflammation in two mouse models of ileal inflammation, including Tnf ΔARE and SAMP/Yit mice. SFB mono-colonization of germ-free Tnf ΔARE mice confirmed the causal link and resulted in severe ileo-colonic inflammation, characterized by elevated tissue levels of Tnf and Il-17A, neutrophil infiltration and loss of Paneth and goblet cell function. Co-colonization of SFB in human-microbiota associated Tnf ΔARE mice confirmed that SFB presence is indispensable for disease development. Screening of 468 ileal and colonic mucosal biopsies from adult and pediatric IBD patients, using previously published and newly designed human SFB-specific primer sets, showed no presence of SFB in human tissue samples, suggesting a species-specific functionality of the pathobiont. Simulating the human relevant therapeutic effect of exclusive enteral nutrition (EEN), EEN-like purified diet antagonized SFB colonization and prevented disease development in Tnf ΔARE mice, providing functional evidence for the protective mechanism of diet in modulating microbiota-dependent inflammation in IBD. CONCLUSIONS We identified a novel pathogenic role of SFB in driving severe CD-like ileo-colonic inflammation characterized by loss of Paneth and goblet cell functions in Tnf ΔARE mice. A purified diet antagonized SFB colonization and prevented disease development in Tnf ΔARE mice in contrast to a fiber-containing chow diet, clearly demonstrating the important role of diet in modulating a novel IBD-relevant pathobiont and supporting a direct link between diet and microbial communities in mediating protective functions. Video Abstract.
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Affiliation(s)
- Amira Metwaly
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Jelena Jovic
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Nadine Waldschmitt
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Sevana Khaloian
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Helena Heimes
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Deborah Häcker
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Mohamed Ahmed
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Nassim Hammoudi
- APHP, Hôpital Saint Louis, Department of Gastroenterology, INSERM UMRS 1160, Paris Diderot, Sorbonne Paris-Cité University, Paris, France
- Université Paris Cité, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Lionel Le Bourhis
- Université Paris Cité, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Aida Mayorgas
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona CSIC, IDIBAPS, CIBERehd, Barcelona, Spain
| | - Kolja Siebert
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Marijana Basic
- Hannover Medical School, Institute for Laboratory Animal Science, Hannover, Germany
| | - Tobias Schwerd
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Matthieu Allez
- APHP, Hôpital Saint Louis, Department of Gastroenterology, INSERM UMRS 1160, Paris Diderot, Sorbonne Paris-Cité University, Paris, France
- Université Paris Cité, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Julian Panes
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona CSIC, IDIBAPS, CIBERehd, Barcelona, Spain
| | - Azucena Salas
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona CSIC, IDIBAPS, CIBERehd, Barcelona, Spain
| | - André Bleich
- Hannover Medical School, Institute for Laboratory Animal Science, Hannover, Germany
| | - Sebastian Zeissig
- Department of Medicine I, University Hospital Dresden, Technische Universität (TU) Dresden, Dresden, Germany
| | - Pamela Schnupf
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, F-75015, Paris, France
| | - Fabio Cominelli
- Digestive Health Research Institute, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Dirk Haller
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany.
- ZIEL-Institute for Food and Health, Technical University of Munich, Freising, Germany.
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Chang SH, Choi Y. Gut dysbiosis in autoimmune diseases: Association with mortality. Front Cell Infect Microbiol 2023; 13:1157918. [PMID: 37065187 PMCID: PMC10102475 DOI: 10.3389/fcimb.2023.1157918] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 03/15/2023] [Indexed: 04/03/2023] Open
Abstract
To better understand the impact of gut dysbiosis on four autoimmune diseases [Sjögren’s syndrome (SS), systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and multiple sclerosis (MS)], this review investigated the altered gut bacteria in each disease and the shared ones among the four diseases. The enriched gut bacteria shared by three of the four autoimmune diseases were Streptococcus, Prevotella, and Eggerthella, which are associated with autoantibody production or activation of Th17 cells in immune-related diseases. On the other hand, Faecalibacterium comprises depleted gut bacteria shared by patients with SLE, MS, and SS, which is associated with various anti-inflammatory activities. The indexes of gut dysbiosis, defined as the number of altered gut bacterial taxa divided by the number of studies in SLE, MS, RA, and SS, were 1.7, 1.8, 0.7, and 1.3, respectively. Interestingly, these values presented a positive correlation trend with the standardized mortality rates —2.66, 2.89, 1.54, and 1.41, respectively. In addition, shared altered gut bacteria among the autoimmune diseases may correlate with the prevalence of polyautoimmunity in patients with SLE, SS, RA, and MS, that is, 41 percent, 32.6 percent, 14 percent, and 1–16.6 percent, respectively. Overall, this review suggests that gut dysbiosis in autoimmune diseases may be closely related to the failure of the gut immune system to maintain homeostasis.
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Wu X, Li RF, Lin ZS, Xiao C, Liu B, Mai KL, Zhou HX, Zeng DY, Cheng S, Weng YC, Zhao J, Chen RF, Jiang HM, Chen LP, Deng LZ, Xie PF, Yang WM, Xia XS, Yang ZF. Coinfection with influenza virus and non-typeable Haemophilus influenzae aggregates inflammatory lung injury and alters gut microbiota in COPD mice. Front Microbiol 2023; 14:1137369. [PMID: 37065141 PMCID: PMC10098174 DOI: 10.3389/fmicb.2023.1137369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/15/2023] [Indexed: 04/01/2023] Open
Abstract
BackgroundAcute exacerbation of chronic obstructive pulmonary disease (AECOPD) is associated with high mortality rates. Viral and bacterial coinfection is the primary cause of AECOPD. How coinfection with these microbes influences host inflammatory response and the gut microbiota composition is not entirely understood.MethodsWe developed a mouse model of AECOPD by cigarette smoke exposure and sequential infection with influenza H1N1 virus and non-typeable Haemophilus influenzae (NTHi). Viral and bacterial titer was determined using MDCK cells and chocolate agar plates, respectively. The levels of cytokines, adhesion molecules, and inflammatory cells in the lungs were measured using Bio-Plex and flow cytometry assays. Gut microbiota was analyzed using 16S rRNA gene sequencing. Correlations between cytokines and gut microbiota were determined using Spearman’s rank correlation coefficient test.ResultsCoinfection with H1N1 and NTHi resulted in more severe lung injury, higher mortality, declined lung function in COPD mice. H1N1 enhanced NTHi growth in the lungs, but NTHi had no effect on H1N1. In addition, coinfection increased the levels of cytokines and adhesion molecules, as well as immune cells including total and M1 macrophages, neutrophils, monocytes, NK cells, and CD4 + T cells. In contrast, alveolar macrophages were depleted. Furthermore, coinfection caused a decline in the diversity of gut bacteria. Muribaculaceae, Lactobacillus, Akkermansia, Lachnospiraceae, and Rikenella were further found to be negatively correlated with cytokine levels, whereas Bacteroides was positively correlated.ConclusionCoinfection with H1N1 and NTHi causes a deterioration in COPD mice due to increased lung inflammation, which is correlated with dysbiosis of the gut microbiota.
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Affiliation(s)
- Xiao Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Run-Feng Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
| | - Zheng-Shi Lin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Chuang Xiao
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Bin Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Kai-Lin Mai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | | | - De-You Zeng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Sha Cheng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Yun-Ceng Weng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jin Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Rui-Feng Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hai-Ming Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Li-Ping Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ling-Zhu Deng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Pei-Fang Xie
- The Affiliated Anning First Hospital and Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Wei-Min Yang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
- Wei-Min Yang,
| | - Xue-Shan Xia
- The Affiliated Anning First Hospital and Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
- Xue-Shan Xia,
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- *Correspondence: Zi-Feng Yang,
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Wu Y, Ran L, Yang Y, Gao X, Peng M, Liu S, Sun L, Wan J, Wang Y, Yang K, Yin M, Chunyu W. Deferasirox alleviates DSS-induced ulcerative colitis in mice by inhibiting ferroptosis and improving intestinal microbiota. Life Sci 2023; 314:121312. [PMID: 36563842 DOI: 10.1016/j.lfs.2022.121312] [Citation(s) in RCA: 56] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
AIMS Ulcerative colitis (UC) is a chronic inflammatory bowel disease (IBD) caused by multiple factors. Studies have shown that epithelial cell damage was associated with ferroptosis in UC. Therefore, our research focused on the effects and mechanism of iron chelator deferasirox in UC. MAIN METHODS The UC model was induced by 2.5 % dextran sulfate sodium salt (DSS) and administered with deferasirox (10 mg/kg) for 7 days. Histological pathologies, inflammatory response, ferrous iron contents, oxidative stress and ferroptosis regulators were determined. Intestinal microbiota alteration and short-chain fatty acids (SCFAs) production were analyzed through 16S rRNA gene sequencing and targeted metabolomics. KEY FINDINGS Deferasirox significantly relieved the DSS-induced UC in mice, as evidenced by weight loss, survival rate, colon length shortening disease activity index (DAI) score and histology score. Deferasirox treatment reduced the level of pro inflammatory cytokines (IL-1β, IL-6, TNF-α and INF-γ). Ferroptosis was induced in mice with UC, as evidenced by ferrous iron accumulation, increased ROS production, SOD and GSH depletion, decreased the expression of GPX-4 and FTH, accompanied by increased expression of TF. Deferasirox treatment strongly reversed the alterations caused by ferroptotic characteristics in DSS-induced mice. Moreover, deferasirox treatment reshaped the composition of intestinal microbiota. The results revealed the genera of norank_f__Muribaculaceae, Lachnospiraceae_NK4A136_group, Prevotellaceae_UCG-001, Odoribacter and Blautia were increased distinctly, while Escherichia-Shigella and Streptococcus were significantly decreased by deferasirox treatment. Targeted metabolomics analysis indicated the SCFAs production enhanced in deferasirox-treated mice. SIGNIFICANCE Our results suggested that deferasirox could treat DSS-induced UC in mice by inhibiting ferroptosis and improving intestinal microbiota.
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Affiliation(s)
- Yi Wu
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China; Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lei Ran
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Yue Yang
- Department of Anesthesiology, The Affiliated Hospital of Yunnan University, Kunming, China
| | - Xianling Gao
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China; Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Man Peng
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Sida Liu
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Le Sun
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Jia Wan
- Department of Vascular Surgery, The Affiliated Hospital of Yunnan University, Kunming, China
| | - Yu Wang
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Kun Yang
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Min Yin
- School of Medicine, Yunnan University, Kunming, China.
| | - Weixun Chunyu
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China.
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Characterization of the Gut Microbiota in Urban Thai Individuals Reveals Enterotype-Specific Signature. Microorganisms 2023; 11:microorganisms11010136. [PMID: 36677429 PMCID: PMC9866083 DOI: 10.3390/microorganisms11010136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Gut microbiota play vital roles in human health, utilizing indigestible nutrients, producing essential substances, regulating the immune system, and inhibiting pathogen growth. Gut microbial profiles are dependent on populations, geographical locations, and long-term dietary patterns resulting in individual uniqueness. Gut microbiota can be classified into enterotypes based on their patterns. Understanding gut enterotype enables us to interpret the capability in macronutrient digestion, essential substance production, and microbial co-occurrence. However, there is still no detailed characterization of gut microbiota enterotype in urban Thai people. In this study, we characterized the gut microbiota of urban Thai individuals by amplicon sequencing and classified their profiles into enterotypes, including Prevotella (EnP) and Bacteroides (EnB) enterotypes. Enterotypes were associated with lifestyle, dietary habits, bacterial diversity, differential taxa, and microbial pathways. Microbe-microbe interactions have been studied via co-occurrence networks. EnP had lower α-diversities than those in EnB. A correlation analysis revealed that the Prevotella genus, the predominant taxa of EnP, has a negative correlation with α-diversities. Microbial function enrichment analysis revealed that the biosynthesis pathways of B vitamins and fatty acids were significantly enriched in EnP and EnB, respectively. Interestingly, Ruminococcaceae, resistant starch degraders, were the hubs of both enterotypes, and strongly correlated with microbial diversity, suggesting that traditional Thai food, consisting of rice and vegetables, might be the important drivers contributing to the gut microbiota uniqueness in urban Thai individuals. Overall findings revealed the biological uniqueness of gut enterotype in urban Thai people, which will be advantageous for developing gut microbiome-based diagnostic tools.
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Ye D, Huang J, Wu J, Xie K, Gao X, Yan K, Zhang P, Tao Y, Li Y, Zang S, Rong X, Li J, Guo J. Integrative metagenomic and metabolomic analyses reveal gut microbiota-derived multiple hits connected to development of gestational diabetes mellitus in humans. Gut Microbes 2023; 15:2154552. [PMID: 36550785 PMCID: PMC9794004 DOI: 10.1080/19490976.2022.2154552] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is characterized by the development of hyperglycemia and insulin resistance during the second or third trimester of pregnancy, associated with considerable risks to both the mother and developing fetus. Although emerging evidence suggests an association between the altered gut microbiota and GDM, remarkably little is known about the microbial and metabolic mechanisms that link the dysbiosis of the gut microbiota to the development of GDM. In this study, a metagenome-wide association study and serum metabolomics profiling were performed in a cohort of pregnant women with GDM and pregnant women with normal glucose tolerance (NGT). We identified gut microbial alterations associated with GDM and linked to the changes in circulating metabolites. Blood metabolite profiles revealed that GDM patients exhibited a marked increase in 2-hydroxybutyric acid and L-alpha-aminobutyric acid, but a decrease in methionine sulfoxide, allantoin, and dopamine and dopaminergic synapse, when compared with those in NGT controls. Short-chain fatty acid-producing genera, including Faecalibacterium, Prevotella, and Streptococcus, and species Bacteroides coprophilus, Eubacterium siraeum, Faecalibacterium prausnitzii, Prevotella copri, and Prevotella stercorea, were significantly reduced in GDM patients relative to those in NGT controls. Bacterial co-occurrence network analysis revealed that pro-inflammatory bacteria were over-represented as the core species in GDM patients. These microbial and metabolic signatures are closely associated with clinical parameters of glucose metabolism in GDM patients and NGT controls. In conclusion, we identified circulating dopamine insufficiency, imbalanced production of SCFAs, and excessive metabolic inflammation as gut microbiota-driven multiple parallel hits linked to GDM development. This work might explain in part the mechanistic link between altered gut microbiota and GDM pathogenesis, and suggest that gut microbiota may serve as a promising target to intervene in GDM.
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Affiliation(s)
- Dewei Ye
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China,Key Laboratory of Metabolic Phenotyping in Model Animals, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiating Huang
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China,Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China
| | - Jiaming Wu
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China,Key Laboratory of Metabolic Phenotyping in Model Animals, Guangdong Pharmaceutical University, Guangzhou, China
| | - Kang Xie
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiang Gao
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Kaixuan Yan
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China,Key Laboratory of Metabolic Phenotyping in Model Animals, Guangdong Pharmaceutical University, Guangzhou, China
| | - Pengfei Zhang
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China,Key Laboratory of Metabolic Phenotyping in Model Animals, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying Tao
- The First Affiliated Hospital/School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yun Li
- The First Affiliated Hospital/School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Shufei Zang
- Department of Endocrinology, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Xianglu Rong
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jun Li
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China,Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, China,School of Data Science, City University of Hong Kong, Hong Kong, China
| | - Jiao Guo
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China,Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China,CONTACT Jiao Guo Science and Technology Building, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega, 280 Waihuan East Road, Room 403, 4th Floor, Guangzhou, China
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Talapko J, Včev A, Meštrović T, Pustijanac E, Jukić M, Škrlec I. Homeostasis and Dysbiosis of the Intestinal Microbiota: Comparing Hallmarks of a Healthy State with Changes in Inflammatory Bowel Disease. Microorganisms 2022; 10:microorganisms10122405. [PMID: 36557658 PMCID: PMC9781915 DOI: 10.3390/microorganisms10122405] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
The gut microbiota, which represent a community of different microorganisms in the human intestinal tract, are crucial to preserving human health by participating in various physiological functions and acting as a metabolic organ. In physiological conditions, microbiota-host partnership exerts homeostatic stability; however, changes in intestinal microbiota composition (dysbiosis) are an important factor in the pathogenesis of inflammatory bowel disease and its two main disease entities: ulcerative colitis and Crohn's disease. The incidence and prevalence of these inflammatory conditions have increased rapidly in the last decade, becoming a significant problem for the healthcare system and a true challenge in finding novel therapeutic solutions. The issue is that, despite numerous studies, the etiopathogenesis of inflammatory bowel disease is not completely clear. Based on current knowledge, chronic intestinal inflammation occurs due to altered intestinal microbiota and environmental factors, as well as a complex interplay between the genetic predisposition of the host and an inappropriate innate and acquired immune response. It is important to note that the development of biological and immunomodulatory therapy has led to significant progress in treating inflammatory bowel disease. Certain lifestyle changes and novel approaches-including fecal microbiota transplantation and nutritional supplementation with probiotics, prebiotics, and synbiotics-have offered solutions for dysbiosis management and paved the way towards restoring a healthy microbiome, with only minimal long-term unfavorable effects.
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Affiliation(s)
- Jasminka Talapko
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31000 Osijek, Croatia
| | - Aleksandar Včev
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31000 Osijek, Croatia
| | - Tomislav Meštrović
- University Centre Varaždin, University North, 42000 Varaždin, Croatia
- Institute for Health Metrics and Evaluation and the Department of Health Metrics Sciences, University of Washington, Seattle, WA 98195, USA
- Correspondence: (T.M.); (I.Š.)
| | - Emina Pustijanac
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, 52100 Pula, Croatia
| | - Melita Jukić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31000 Osijek, Croatia
- General Hospital Vukovar, Županijska 35, 32000 Vukovar, Croatia
| | - Ivana Škrlec
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31000 Osijek, Croatia
- Correspondence: (T.M.); (I.Š.)
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Amoxicillin impact on pathophysiology induced by short term high salt diet in mice. Sci Rep 2022; 12:19351. [PMID: 36369512 PMCID: PMC9652318 DOI: 10.1038/s41598-022-21270-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 09/26/2022] [Indexed: 11/13/2022] Open
Abstract
Current evidence emerging from both human and animal models confirms that high-salt diet consumption over a period modulates the gut ecology and subsequently accelerates the development of the pathophysiology of many metabolic diseases. The knowledge of short-term intake of a high-salt diet (HSD) on gut microbiota and their role in the progression of metabolic pathogenesis and the consequence of a typical course of common antibiotics in this condition has yet not been investigated. The present study elicited this knowledge gap by studying how the gut microbiota profile changes in mice receiving HSD for a short period followed by Amoxicillin treatment on these mice in the last week to mimic a typical treatment course of antibiotics. In this study, we provided a standard chow diet (CD) and HSD for 3 weeks, and a subset of these mice on both diets received antibiotic therapy with Amoxicillin in the 3rd week. We measured the body weight of mice for 3 weeks. After 21 days, all animals were euthanised and subjected to a thorough examination for haemato-biochemical, histopathological, and 16S rRNA sequencing, followed by bioinformatics analysis to determine any changes in gut microbiota ecology. HSD exposure in mice for short duration even leads to a significant difference in the gut ecology with enrichment of specific gut microbiota crucially linked to developing the pathophysiological features of metabolic disease-related inflammation. In addition, HSD treatment showed a negative impact on haemato-biochemical parameters. However, Amoxicillin treatment in HSD-fed mice restored the blood-biochemical markers near to control values and reshaped gut microbiota known for improving the pathophysiological attributes of metabolic disease related inflammation. This study also observed minimal and insignificant pathological changes in the heart, liver, and kidney in HSD-fed mice.
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Kumar S, Raj VS, Ahmad A, Saini V. Amoxicillin modulates gut microbiota to improve short-term high-fat diet induced pathophysiology in mice. Gut Pathog 2022; 14:40. [PMID: 36229889 PMCID: PMC9563906 DOI: 10.1186/s13099-022-00513-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 08/02/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND A high-fat diet (HFD) induced perturbation of gut microbiota is a major contributory factor to promote the pathophysiology of HFD-associated metabolic syndrome. The HFD could also increase the susceptibility to the microbial infections warranting the use of antibiotics which are independently capable of impacting both gut microbiota and metabolic syndrome. Further, the usage of antibiotics in individuals consuming HFD can impact mitochondrial function that can be associated with an elevated risk of chronic conditions like inflammatory bowel disease (IBD). Despite this high propensity to infections in individuals on HFD, the link between duration of HFD and antibiotic treatment, and its impact on diversity of the gut microbiome and features of metabolic syndrome is not well established. In this study, we have addressed these knowledge gaps by examining how the gut microbiota profile changes in HFD-fed mice receiving antibiotic intervention in the form of amoxicillin. We also determine whether antibiotic treatment in HFD-fed mice may adversely impact the ability of immune cells to clear microbial infections. METHODS AND RESULTS We have subjected mice to HFD and chow diet (CD) for 3 weeks, and a subset of these mice on both diets received antibiotic intervention in the form of amoxicillin in the 3rd week. Body weight and food intake were recorded for 3 weeks. After 21 days, all animals were weighted and sacrificed. Subsequently, these animals were evaluated for basic haemato-biochemical and histopathological attributes. We used 16S rRNA sequencing followed by bioinformatics analysis to determine changes in gut microbiota in these mice. We observed that a HFD, even for a short-duration, could successfully induce the partial pathophysiology typical of a metabolic syndrome, and substantially modulated the gut microbiota in mice. The short course of amoxicillin treatment to HFD-fed mice resulted in beneficial effects by significantly reducing fasting blood glucose and skewing the number of thrombocytes towards a normal range. Remarkably, we observed a significant remodelling of gut microbiota in amoxicillin-treated HFD-fed mice. Importantly, some gut microbes associated with improved insulin sensitivity and recovery from metabolic syndrome only appeared in amoxicillin-treated HFD-fed mice reinforcing the beneficial effects of antibiotic treatment in the HFD-associated metabolic syndrome. Moreover, we also observed the presence of gut-microbiota unique to amoxicillin-treated HFD-fed mice that are also known to improve the pathophysiology associated with metabolic syndrome. However, both CD-fed as well as HFD-fed mice receiving antibiotics showed an increase in intestinal pathogens as is typically observed for antibiotic treatment. Importantly though, infection studies with S. aureus and A. baumannii, revealed that macrophages isolated from amoxicillin-treated HFD-fed mice are comparable to those isolated from mice receiving only HFD or CD in terms of susceptibility, and progression of microbial infection. This finding clearly indicated that amoxicillin treatment does not introduce any additional deficits in the ability of macrophages to combat microbial infections. CONCLUSIONS Our results showed that amoxicillin treatment in HFD-fed mice exert a beneficial influence on the pathophysiological attributes of metabolic syndrome which correlates with a significant remodelling of gut microbiota. A novel observation was the increase in microbes known to improve insulin sensitivity following amoxicillin treatment during short-term intake of HFD. Even though there is a minor increase in gut-resistant intestinal pathogens in amoxicillin-treated groups, there is no adverse impact on macrophages with respect to their susceptibility and ability to control infections. Taken together, this study provides a proof of principle for the exploration of amoxicillin treatment as a potential therapy in the people affected with metabolic syndrome.
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Affiliation(s)
- Suresh Kumar
- National Institute of Biologicals, Ministry of Health & Family Welfare, Govt. of India, Noida, 201309, India.
| | - V Samuel Raj
- Center for Drug, Design, Discovery and Development (C4D), SRM University, Delhi-NCR, 131029, Sonepat, Haryana, India
| | - Ayaan Ahmad
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Vikram Saini
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India.
- Biosafety Laboratory-3, Centralized Core Research Facility (CCRF), All India Institute of Medical Sciences (AIIMS), New Delhi, India.
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Delgadinho M, Ginete C, Santos B, Mendes J, Miranda A, Vasconcelos J, Brito M. Microbial gut evaluation in an angolan paediatric population with sickle cell disease. J Cell Mol Med 2022; 26:5360-5368. [PMID: 36168945 DOI: 10.1111/jcmm.17402] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/21/2022] [Accepted: 04/06/2022] [Indexed: 11/29/2022] Open
Abstract
Sickle cell disease (SCD) is one of the most common genetic conditions worldwide. It can contribute up to 90% of under-5 mortality in sub-Saharan Africa. Clinical manifestations are very heterogeneous, and the intestinal microbiome appears to be crucial in the modulation of inflammation, cell adhesion and induction of aged neutrophils, the main interveners of recurrent vaso-occlusive crisis. Enterocyte injury, increased permeability, altered microbial composition and bacterial overgrowth have all been documented as microbial and pathophysiologic changes in the gut microbiome of SCD patients in recent studies. Our aim was to sequence the bacterial 16S rRNA gene in order to characterize the gut microbiome of Angolan children with SCA and healthy siblings as a control. A total of 72 stool samples were obtained from children between 3 and 14 years old. Our data showed that the two groups exhibit some notable differences in microbiota relative abundance at different classification levels. Children with SCA have a higher number of the phylum Actinobacteria. As for the genus level, Clostridium cluster XI bacteria was more prevalent in the SCA children, whereas the siblings had a higher abundance of Blautia, Aestuariispira, Campylobacter, Helicobacter, Polaribacter and Anaerorhabdus. In this study, we have presented the first microbiota analysis in an Angolan paediatric population with SCD and provided a detailed view of the microbial differences between patients and healthy controls. There is still much to learn before fully relying on the therapeutic approaches for gut modulation, which is why more research in this field is crucial to making this a reality.
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Affiliation(s)
- Mariana Delgadinho
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Lisbon, Portugal
| | - Catarina Ginete
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Lisbon, Portugal
| | - Brígida Santos
- Centro de Investigação em Saúde de Angola (CISA), Bengo, Angola.,Hospital Pediátrico David Bernardino (HPDB), Luanda, Angola
| | - Joana Mendes
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Lisbon, Portugal
| | - Armandina Miranda
- Instituto Nacional de Saúde Doutor Ricardo Jorge (INSA), Lisbon, Portugal
| | | | - Miguel Brito
- H&TRC- Health & Technology Research Center, ESTeSL- Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Lisbon, Portugal.,Centro de Investigação em Saúde de Angola (CISA), Bengo, Angola
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36
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Human umbilical cord-derived mesenchymal stem cells ameliorate experimental colitis by normalizing the gut microbiota. STEM CELL RESEARCH & THERAPY 2022; 13:475. [PMID: 36104756 PMCID: PMC9476645 DOI: 10.1186/s13287-022-03118-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
Abstract
Background Crohn's disease (CD) is a chronic non-specific inflammatory bowel disease. Current CD therapeutics cannot fundamentally change the natural course of CD. Therefore, it is of great significance to find new treatment strategies for CD. Preclinical and clinical studies have shown that mesenchymal stromal cells (MSCs) are a promising therapeutic approach. However, the mechanism by which MSCs alleviate CD and how MSCs affect gut microbes are still unclear and need further elucidation. Methods We used 2,4,6-trinitrobenzenesulfonic acid (TNBS) to induce experimental colitis in mice and analysed the microbiota in faecal samples from the control group, the TNBS group and the TNBS + MSC group with faecal 16S rDNA sequencing. Subsequent analyses of alpha and beta diversity were all performed based on the rarified data. PICRUStII analysis was performed on the 16S rRNA gene sequences to infer the gut microbiome functions. Results MSC Treatment improved TNBS-induced colitis by increasing survival rates and relieving symptoms. A distinct bacterial signature was found in the TNBS group that differed from the TNBS + MSC group and controls. MSCs prevented gut microbiota dysbiosis, including increasing α-diversity and the amount of Bacteroidetes Firmicutes and Tenericutes at the phylum level and decreasing the amount of Proteobacteria at the phylum level. MSCs alleviated the increased activities of sulphur and riboflavin metabolism. Meanwhile some metabolic pathways such as biosynthesis of amino acids lysine biosynthesis sphingolipid metabolism and secondary bile acid biosynthesis were decreased in the TNBS group compared with the control group and the TNBS + MSC group Conclusions Overall, our findings preliminarily confirmed that colitis in mice is closely related to microbial and metabolic dysbiosis. MSC treatment could modulate the dysregulated metabolism pathways in mice with colitis, restoring the abnormal microbiota function to that of the normal control group. This study provides insight into specific intestinal microbiota and metabolism pathways linked with MSC treatment, suggesting a new approach to the treatment of CD. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-03118-1.
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Brugiroux S, Berry D, Ring D, Barnich N, Daims H, Stecher B. Specific Localization and Quantification of the Oligo-Mouse-Microbiota (OMM 12 ) by Fluorescence In Situ Hybridization (FISH). Curr Protoc 2022; 2:e548. [PMID: 36094300 DOI: 10.1002/cpz1.548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The oligo-mouse-microbiota (OMM12 ) is a widely used syncom that colonizes gnotobiotic mice in a stable manner. It provides several fundamental functions to its murine host, including colonization resistance against enteric pathogens. Here, we designed and validated specific fluorescence in situ hybridization (FISH) probes to detect and quantify OMM12 strains on intestinal tissue cross sections. 16S rRNA-specific probes were designed, and specificity was validated on fixed pure cultures. A hybridization protocol was optimized for sensitive detection of the individual bacterial cells in cryosections. Using this method, we showed that the intestinal mucosal niche of Akkermansia muciniphila can be influenced by global gut microbial community context. © 2022 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol: Localization and quantification of OMM12 single strains in mouse cecum cross section Support Protocol: Establishment of specific FISH probe set for OMM12 syncom.
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Affiliation(s)
- Sandrine Brugiroux
- Max von Pettenkofer Institute, LMU Munich, Munich, Germany
- M2iSH, UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - David Berry
- Centre for Microbiology and Environmental Systems Science, Division of Microbial Ecology, University of Vienna, Vienna, Austria
| | - Diana Ring
- Max von Pettenkofer Institute, LMU Munich, Munich, Germany
| | - Nicolas Barnich
- M2iSH, UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Holger Daims
- Centre for Microbiology and Environmental Systems Science, Division of Microbial Ecology, University of Vienna, Vienna, Austria
| | - Bärbel Stecher
- Max von Pettenkofer Institute, LMU Munich, Munich, Germany
- German Center for Infection Research, Partner Site Munich, Germany
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Kim CH, Lee YU, Kim KH, Kang S, Kang GH, Chu H, Lee S. Comparison of Metabolites and Gut Microbes between Patients with Ulcerative Colitis and Healthy Individuals for an Integrative Medicine Approach to Ulcerative Colitis—A Pilot Observational Clinical Study (STROBE Compliant). Diagnostics (Basel) 2022; 12:diagnostics12081969. [PMID: 36010319 PMCID: PMC9407185 DOI: 10.3390/diagnostics12081969] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/09/2022] [Accepted: 08/14/2022] [Indexed: 12/02/2022] Open
Abstract
Ulcerative colitis (UC) is an intractable disease associated with high morbidity and healthcare costs. Metabolites and gut microbes are areas of interest for mainstream and complementary and alternative medicine. We, therefore, aimed to contribute to the discovery of an integrative medicine for UC by comparing and analyzing gut microbes and metabolites in patients with UC and in healthy individuals. This was an observational case-control study. Blood and stool samples were collected from the participants, and metabolite and gut microbial studies were performed. Among metabolites, formate, glycolate, trimethylamine, valine, and pyruvate levels were significantly different between the two groups. Among gut microbes, the abundance of Bacteroidetes at the phylum level; Bacteroidia at the class level; Bacteroidales and Actinomycetales at the order level; Prevotellaceae, Acidaminococcaceae, and Leptotrichiaceae at the family level; and Prevotella, Roseburia, Paraprevotella, Phascolarctobacterium, Ruminococcus, Coprococcus, Clostridium_XIVB, Atopobium, and Leptotrichia at the genus level was also significantly different. Most of the metabolites and gut microbes significantly different between the two groups were involved in energy metabolism and inflammatory processes, respectively. The results of this study could be helpful for the identification of targets for integrative medicine approaches for UC.
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Affiliation(s)
- Cheol-Hyun Kim
- Department of Internal Medicine and Neuroscience, College of Korean Medicine, Wonkwang University, Iksan 54538, Korea
- Stroke Korean Medicine Research Center, Wonkwang University, Iksan 54538, Korea
- Correspondence: (C.-H.K.); (S.L.); Tel.: +82-10-7169-1625 (C.-H.K.); +82-10-2632-0119 (S.L.)
| | - Young-Ung Lee
- Department of Internal Medicine and Neuroscience, College of Korean Medicine, Wonkwang University, Iksan 54538, Korea
- Stroke Korean Medicine Research Center, Wonkwang University, Iksan 54538, Korea
| | - Kwang-Ho Kim
- Department of Internal Medicine and Neuroscience, College of Korean Medicine, Wonkwang University, Iksan 54538, Korea
- Stroke Korean Medicine Research Center, Wonkwang University, Iksan 54538, Korea
| | - Sunny Kang
- Department of Internal Medicine and Neuroscience, College of Korean Medicine, Wonkwang University, Iksan 54538, Korea
- Stroke Korean Medicine Research Center, Wonkwang University, Iksan 54538, Korea
| | - Geon-Hui Kang
- Stroke Korean Medicine Research Center, Wonkwang University, Iksan 54538, Korea
- Hanbang Cardio-Renal Syndrome Research Center, College of Oriental Medicine, Wonkwang University, Iksan 54538, Korea
| | - Hongmin Chu
- Department of Internal Medicine and Neuroscience, College of Korean Medicine, Wonkwang University, Iksan 54538, Korea
- Stroke Korean Medicine Research Center, Wonkwang University, Iksan 54538, Korea
| | - Sangkwan Lee
- Department of Internal Medicine and Neuroscience, College of Korean Medicine, Wonkwang University, Iksan 54538, Korea
- Stroke Korean Medicine Research Center, Wonkwang University, Iksan 54538, Korea
- Hanbang Cardio-Renal Syndrome Research Center, College of Oriental Medicine, Wonkwang University, Iksan 54538, Korea
- Correspondence: (C.-H.K.); (S.L.); Tel.: +82-10-7169-1625 (C.-H.K.); +82-10-2632-0119 (S.L.)
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Arnauts K, Sudhakar P, Verstockt S, Lapierre C, Potche S, Caenepeel C, Verstockt B, Raes J, Vermeire S, Sabino J, Verfaillie C, Ferrante M. Microbiota, not host origin drives ex vivo intestinal epithelial responses. Gut Microbes 2022; 14:2089003. [PMID: 35758256 PMCID: PMC9235885 DOI: 10.1080/19490976.2022.2089003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Microbial dysbiosis is an established finding in patients with inflammatory bowel disease (IBD), but host-microbial interactions are poorly understood. We aimed to unravel the effect of microbiota exposure on intestinal epithelial cells. Confluent Transwell® organoid monolayers of eight UC patients and eight non-IBD controls were co-cultured for six hours with microbiota (3x108 cells) of UC patients or a healthy volunteer (HV), in the presence or absence of an inflammatory cytokine mix. Transepithelial electrical resistance (TEER), fluorescein isothiocyanate (FITC) dextran measurements, and RNA sequencing were performed on epithelial cells, and 16S rRNA sequencing on microbiota samples before and after co-culture. Transcriptomic response following microbiota exposure was not different between epithelial cells from UC patients or non-IBD controls. Following UC microbiota exposure, but not HV microbiota, a strong decrease in epithelial barrier integrity was observed in both UC and HV epithelial cells by TEER and FITC dextran measurements. Exposure of inflamed epithelium to UC microbiota induced transcriptomic stress pathways including activation of EGR1, MAPK and JAK/STAT signaling, as well as AP-1 family and FOSL transcripts. Stress responses after HV microbiota stimulation were milder. We conclude that not the epithelial cell origin (UC versus non-IBD) but the microbial donor drives transcriptomic responses, as exposure to UC microbiota was sufficient to induce stress responses in all epithelial cells. Further research on therapies to restore the microbial balance, to remove the constant trigger of dysbiosis, is required.
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Affiliation(s)
- Kaline Arnauts
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium,Department of Development and Regeneration, Stem Cell Institute Leuven (SCIL), KU Leuven, Leuven, Belgium
| | - Padhmanand Sudhakar
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Sare Verstockt
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Cynthia Lapierre
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Selina Potche
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Clara Caenepeel
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium,Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Bram Verstockt
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium,Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Jeroen Raes
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium,Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - João Sabino
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium,Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Catherine Verfaillie
- Department of Development and Regeneration, Stem Cell Institute Leuven (SCIL), KU Leuven, Leuven, Belgium
| | - Marc Ferrante
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium,Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium,CONTACT Marc Ferrante Department of Gastroenterology and Hepatology University Hospitals Leuven, Herestraat 49, Leuven3000, Belgium
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Rungjang A, Meephansan J, Payungporn S, Sawaswong V, Chanchaem P, Pureesrisak P, Wongpiyabovorn J, Thio HB. Alteration of gut microbiota during narrowband ultraviolet B therapy: A preliminary study. Exp Dermatol 2022; 31:1281-1288. [PMID: 35737868 DOI: 10.1111/exd.14631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/06/2022] [Accepted: 06/20/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Gut microbiome dysbiosis is associated with psoriasis development. A relationship between gut microbiota and psoriasis treatment response has been reported. No study has reported the effect of narrowband ultraviolet B (NBUVB) therapy, a standard treatment of psoriasis, on gut microbiota. QUESTION ADDRESSED This study aimed to evaluate gut microbiota change during NBUVB therapy. EXPERIMENTAL DESIGN Stool samples from 22 participants, including 13 patients with chronic plaque psoriasis and nine healthy controls, were recruited. Fecal microbiota composition was analyzed using 16S rRNA sequencing before and after NBUVB therapy. Serum 25-OH Vitamin D of patients with psoriasis was evaluated simultaneously. RESULTS The most abundant phyla of gut microbiota in patients with psoriasis were Firmicutes, Bacteroidetes, Proteobacteria, and Actinobacteria in all participants. Bilophila, Paraprevotella, Alistipes, Sutterella, Romboutsia, Clostridium sensu stricto, and Agathobacter are significantly more enriched in healthy controls. Lactobacillales and Ruminococus torques appeared more enriched after NBUVB treatment in responders but not non-responders. Serum Vitamin D levels significantly increased after NBUVB treatment. CONCLUSIONS&PERSPECTIVE The present study revealed that gut microbiota altered after NBUVB treatment. The change might be treatment-specific and influence the treatment response.
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Affiliation(s)
- A Rungjang
- Division of Dermatology, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | - J Meephansan
- Division of Dermatology, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | - S Payungporn
- The Research Unit of Systems Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - V Sawaswong
- The Research Unit of Systems Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - P Chanchaem
- The Research Unit of Systems Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - P Pureesrisak
- Division of Dermatology, Department of Medicine, Rajavithi Hospital, Ministry of Public Health, Bangkok, Thailand
| | - J Wongpiyabovorn
- Division of Immunology, Department of Microbiology, Faculty of Medicine, Center of Excellence in Immunology and Immune-Mediated Diseases, Chulalongkorn University, Bangkok, Thailand
| | - H B Thio
- Department of Dermatology, Erasmus University Medical Center, Rotterdam
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Nagao-Kitamoto H, Kitamoto S, Kamada N. Inflammatory bowel disease and carcinogenesis. Cancer Metastasis Rev 2022; 41:301-316. [PMID: 35416564 DOI: 10.1007/s10555-022-10028-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/27/2022] [Indexed: 11/24/2022]
Abstract
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer mortality worldwide. Colitis-associated colorectal cancer (CAC) is a subtype of CRC associated with inflammatory bowel disease (IBD). It is well known that individuals with IBD have a 2-3 times higher risk of developing CRC than those who do not, rendering CAC a major cause of death in this group. Although the etiology and pathogenesis of CAC are incompletely understood, animal models of chronic inflammation and human cohort data indicate that changes in the intestinal environment, including host response dysregulation and gut microbiota perturbations, may contribute to the development of CAC. Genomic alterations are a hallmark of CAC, with patterns that are distinct from those in sporadic CRC. The discovery of the biological changes that underlie the development of CAC is ongoing; however, current data suggest that chronic inflammation in IBD increases the risk of developing CAC. Therefore, a deeper understanding of the precise mechanisms by which inflammation triggers genetic alterations and disrupts intestinal homeostasis may provide insight into novel therapeutic strategies for the prevention of CAC.
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Affiliation(s)
- Hiroko Nagao-Kitamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA.
- WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan.
| | - Sho Kitamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA
- WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Nobuhiko Kamada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA.
- WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan.
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Bakir-Gungor B, Hacılar H, Jabeer A, Nalbantoglu OU, Aran O, Yousef M. Inflammatory bowel disease biomarkers of human gut microbiota selected via different feature selection methods. PeerJ 2022; 10:e13205. [PMID: 35497193 PMCID: PMC9048649 DOI: 10.7717/peerj.13205] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/10/2022] [Indexed: 01/12/2023] Open
Abstract
The tremendous boost in next generation sequencing and in the "omics" technologies makes it possible to characterize the human gut microbiome-the collective genomes of the microbial community that reside in our gastrointestinal tract. Although some of these microorganisms are considered to be essential regulators of our immune system, the alteration of the complexity and eubiotic state of microbiota might promote autoimmune and inflammatory disorders such as diabetes, rheumatoid arthritis, Inflammatory bowel diseases (IBD), obesity, and carcinogenesis. IBD, comprising Crohn's disease and ulcerative colitis, is a gut-related, multifactorial disease with an unknown etiology. IBD presents defects in the detection and control of the gut microbiota, associated with unbalanced immune reactions, genetic mutations that confer susceptibility to the disease, and complex environmental conditions such as westernized lifestyle. Although some existing studies attempt to unveil the composition and functional capacity of the gut microbiome in relation to IBD diseases, a comprehensive picture of the gut microbiome in IBD patients is far from being complete. Due to the complexity of metagenomic studies, the applications of the state-of-the-art machine learning techniques became popular to address a wide range of questions in the field of metagenomic data analysis. In this regard, using IBD associated metagenomics dataset, this study utilizes both supervised and unsupervised machine learning algorithms, (i) to generate a classification model that aids IBD diagnosis, (ii) to discover IBD-associated biomarkers, (iii) to discover subgroups of IBD patients using k-means and hierarchical clustering approaches. To deal with the high dimensionality of features, we applied robust feature selection algorithms such as Conditional Mutual Information Maximization (CMIM), Fast Correlation Based Filter (FCBF), min redundancy max relevance (mRMR), Select K Best (SKB), Information Gain (IG) and Extreme Gradient Boosting (XGBoost). In our experiments with 100-fold Monte Carlo cross-validation (MCCV), XGBoost, IG, and SKB methods showed a considerable effect in terms of minimizing the microbiota used for the diagnosis of IBD and thus reducing the cost and time. We observed that compared to Decision Tree, Support Vector Machine, Logitboost, Adaboost, and stacking ensemble classifiers, our Random Forest classifier resulted in better performance measures for the classification of IBD. Our findings revealed potential microbiome-mediated mechanisms of IBD and these findings might be useful for the development of microbiome-based diagnostics.
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Affiliation(s)
- Burcu Bakir-Gungor
- Department of Computer Engineering, Abdullah Gul University, Kayseri, Turkey
| | - Hilal Hacılar
- Department of Computer Engineering, Abdullah Gul University, Kayseri, Turkey
| | - Amhar Jabeer
- Department of Computer Engineering, Abdullah Gul University, Kayseri, Turkey
| | | | - Oya Aran
- TETAM, Bogazici University, Istanbul, Turkey
| | - Malik Yousef
- Zefat Academic College, Zefat, Israel,Galilee Digital Health Research Center, Zefat Academic College, Zefat, Israel
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Hong M, Cheng L, Liu Y, Wu Z, Zhang P, Zhang X. Mechanisms Underlying the Interaction Between Chronic Neurological Disorders and Microbial Metabolites via Tea Polyphenols Therapeutics. Front Microbiol 2022; 13:823902. [PMID: 35401435 PMCID: PMC8991060 DOI: 10.3389/fmicb.2022.823902] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 02/24/2022] [Indexed: 12/14/2022] Open
Abstract
The number of hydroxyl groups and existence of characteristic structural groups in tea polyphenols (TP) make them have antioxidant activity, which gives TP anti-inflammatory effects, toward protecting the intestinal flora and brain neurons. Host-associated microbial metabolites are emerging as dominant modifiers of the central nervous system. As yet, the investigations on host-microbiota crosstalking remain challenging, studies focusing on metabolites such as serotonin, short-chain fatty acids, and others have pinpointed multiple actionable signaling pathways relevant to host health. However, there are still complexities and apparent limitations inherent in transforming complex human diseases to corresponding animal models. Here, we choose to discuss several intestinal metabolites with research value, as crucial areas for assessing TP-mediated chronic brain diseases interactions with microbial.
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Affiliation(s)
- Mengyu Hong
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Lu Cheng
- Department of Food Science, Rutgers, The State University of New Jersey, New Brunswick, NJ, United States
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Zufang Wu
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Peng Zhang
- Department of Student Affairs, Xinyang Normal University, Xinyang, China
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
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Simões CD, Maganinho M, Sousa AS. FODMAPs, inflammatory bowel disease and gut microbiota: updated overview on the current evidence. Eur J Nutr 2022; 61:1187-1198. [PMID: 34988652 DOI: 10.1007/s00394-021-02755-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/25/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Based on the fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) hypothesis, the low-FODMAP diet has been suggested as a potential therapeutic approach for inflammatory bowel disease (IBD) with promising results on disease management. However, this diet implies a specific broad food restriction, which potentially increases the risk of nutritional deficiencies and may aggravate gut microbiota dysbiosis of IBD patients. The aim of the present study is to review the effect of individual FODMAPs on the human gut microbiota. In addition, this narrative review provides an updated overview of the use of the low-FODMAP diet in IBD, namely the implementation, advantages, limitations, and the impact on the gut microbiota. METHODS The literature search strategy was applied to PubMed and Web of Science using relevant keywords, IBD, FODMAPs, Fructose, Lactose, Polyols, FOS, GOS, low-FODMAP diet and gut microbiota. RESULTS Current data suggest that the low-FODMAP diet may effectively improve clinical outcomes in the management of IBD and ensure better quality of life for IBD patients. However, there is evidence highlighting some issues of concern, particularly the adequacy of the diet and the impact on the gut microbiota. The various FODMAP types differently modulate the gut microbiota. CONCLUSION IBD management should be achieved with the least possible dietary restriction to avoid detrimental consequences, particularly on nutritional adequacy and gut microbiota. Thus, it is important to individualize and monitor the nutrition intervention. Further studies are required to better characterize the relationship between diet, the gut microbiota, and IBD to support the generalization of this approach for clinical practice in IBD therapy and management.
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Affiliation(s)
- Catarina D Simões
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
- CIBIO-InBIO Research Centre in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
| | - Marta Maganinho
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | - Ana S Sousa
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal.
- Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, Leiria, Portugal.
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Kubinski R, Djamen-Kepaou JY, Zhanabaev T, Hernandez-Garcia A, Bauer S, Hildebrand F, Korcsmaros T, Karam S, Jantchou P, Kafi K, Martin RD. Benchmark of Data Processing Methods and Machine Learning Models for Gut Microbiome-Based Diagnosis of Inflammatory Bowel Disease. Front Genet 2022; 13:784397. [PMID: 35251123 PMCID: PMC8895431 DOI: 10.3389/fgene.2022.784397] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/13/2022] [Indexed: 12/14/2022] Open
Abstract
Patients with inflammatory bowel disease (IBD) wait months and undergo numerous invasive procedures between the initial appearance of symptoms and receiving a diagnosis. In order to reduce time until diagnosis and improve patient wellbeing, machine learning algorithms capable of diagnosing IBD from the gut microbiome's composition are currently being explored. To date, these models have had limited clinical application due to decreased performance when applied to a new cohort of patient samples. Various methods have been developed to analyze microbiome data which may improve the generalizability of machine learning IBD diagnostic tests. With an abundance of methods, there is a need to benchmark the performance and generalizability of various machine learning pipelines (from data processing to training a machine learning model) for microbiome-based IBD diagnostic tools. We collected fifteen 16S rRNA microbiome datasets (7,707 samples) from North America to benchmark combinations of gut microbiome features, data normalization and transformation methods, batch effect correction methods, and machine learning models. Pipeline generalizability to new cohorts of patients was evaluated with two binary classification metrics following leave-one-dataset-out cross (LODO) validation, where all samples from one study were left out of the training set and tested upon. We demonstrate that taxonomic features processed with a compositional transformation method and batch effect correction with the naive zero-centering method attain the best classification performance. In addition, machine learning models that identify non-linear decision boundaries between labels are more generalizable than those that are linearly constrained. Lastly, we illustrate the importance of generating a curated training dataset to ensure similar performance across patient demographics. These findings will help improve the generalizability of machine learning models as we move towards non-invasive diagnostic and disease management tools for patients with IBD.
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Affiliation(s)
| | | | | | - Alex Hernandez-Garcia
- Mila, Quebec Artificial Intelligence Institute, University of Montreal, Montréal, QC, Canada
| | - Stefan Bauer
- Max Planck Institute for Intelligent Systems, Tübingen, Germany
| | - Falk Hildebrand
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich, United Kingdom
- Earlham Institute, Norwich, United Kingdom
| | - Tamas Korcsmaros
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich, United Kingdom
- Earlham Institute, Norwich, United Kingdom
| | - Sani Karam
- Phyla Technologies Inc, Montréal, QC, Canada
| | - Prévost Jantchou
- Centre Hospitalier Universitaire Sainte-Justine, Montréal, QC, Canada
| | - Kamran Kafi
- Phyla Technologies Inc, Montréal, QC, Canada
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46
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Shen CL, Wang R, Ji G, Elmassry MM, Zabet-Moghaddam M, Vellers H, Hamood AN, Gong X, Mirzaei P, Sang S, Neugebauer V. Dietary supplementation of gingerols- and shogaols-enriched ginger root extract attenuate pain-associated behaviors while modulating gut microbiota and metabolites in rats with spinal nerve ligation. J Nutr Biochem 2022; 100:108904. [PMID: 34748918 PMCID: PMC8794052 DOI: 10.1016/j.jnutbio.2021.108904] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/24/2021] [Accepted: 10/08/2021] [Indexed: 02/03/2023]
Abstract
Neuroinflammation is a central factor in neuropathic pain (NP). Ginger is a promising bioactive compound in NP management due to its anti-inflammatory property. Emerging evidence suggests that gut microbiome and gut-derived metabolites play a key role in NP. We evaluated the effects of two ginger root extracts rich in gingerols (GEG) and shogaols (SEG) on pain sensitivity, anxiety-like behaviors, circulating cell-free mitochondrial DNA (ccf-mtDNA), gut microbiome composition, and fecal metabolites in rats with NP. Sixteen male rats were divided into four groups: sham, spinal nerve ligation (SNL), SNL+0.75%GEG in diet, and SNL+0.75%SEG in diet groups for 30 days. Compared to SNL group, both SNL+GEG and SNL+SEG groups showed a significant reduction in pain- and anxiety-like behaviors, and ccf-mtDNA level. Relative to the SNL group, both SNL+GEG and SNL+SEG groups increased the relative abundance of Lactococcus, Sellimonas, Blautia, Erysipelatoclostridiaceae, and Anaerovoracaceae, but decreased that of Prevotellaceae UCG-001, Rikenellaceae RC9 gut group, Mucispirillum and Desulfovibrio, Desulfovibrio, Anaerofilum, Eubacterium siraeum group, RF39, UCG-005, Lachnospiraceae NK4A136 group, Acetatifactor, Eubacterium ruminantium group, Clostridia UCG-014, and an uncultured Anaerovoracaceae. GEG and SEG had differential effects on gut-derived metabolites. Compared to SNL group, SNL+GEG group had higher level of 1'-acetoxychavicol acetate, (4E)-1,7-Bis(4-hydroxyphenyl)-4-hepten-3-one, NP-000629, 7,8-Dimethoxy-3-(2-methyl-3-buten-2-yl)-2H-chromen-2-one, 3-{[4-(2-Pyrimidinyl)piperazino]carbonyl}-2-pyrazinecarboxylic acid, 920863, and (1R,3R,7R,13S)-13-Methyl-6-methylene-4,14,16-trioxatetracyclo[11.2.1.0∼1,10∼.0∼3,7∼]hexadec-9-en-5-one, while SNL+SEG group had higher level for (±)-5-[(tert-Butylamino)-2'-hydroxypropoxy]-1_2_3_4-tetrahydro-1-naphthol and dehydroepiandrosteronesulfate. In conclusion, ginger is a promising functional food in the management of NP, and further investigations are necessary to assess the role of ginger on gut-brain axis in pain management.
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Affiliation(s)
- Chwan-Li Shen
- Department of Pathology, Texas Technical University Health Sciences Center, Lubbock, Texas; Center of Excellence for Integrative Health, Texas Technical University Health Sciences Center, Lubbock, Texas; Center of Excellence for Translational Neuroscience and Therapeutics, Texas Technical University Health Sciences Center, Lubbock, Texas.
| | - Rui Wang
- Department of Pathology, Texas Technical University Health Sciences Center, Lubbock, Texas
| | - Guangchen Ji
- Department of Pharmacology and Neuroscience, Texas Technical University Health Sciences Center, Lubbock, Texas
| | - Moamen M Elmassry
- Department of Biological Sciences, Texas Technical University, Lubbock, Texas
| | | | - Heather Vellers
- Department of Kinesiology and Sport Management, Texas Technical University, Lubbock, Texas
| | - Abdul N Hamood
- Department of Immunology and Molecular Microbiology, Texas Technical University Health Sciences Center, Lubbock, Texas; Department of Surgery, Texas Technical University Health Sciences Center, Lubbock, Teaxs
| | - Xiaoxia Gong
- Center for Biotechnology and Genomics, Texas Technical University, Lubbock, Texas
| | - Parvin Mirzaei
- Center for Biotechnology and Genomics, Texas Technical University, Lubbock, Texas
| | - Shengmin Sang
- Laboratory for Functional Foods and Human Health, Center for Excellence in Post Harvest Technologies, North Carolina A&T State University, North Carolina Research Campus, Kannapolis, North Carolina
| | - Volker Neugebauer
- Center of Excellence for Integrative Health, Texas Technical University Health Sciences Center, Lubbock, Texas; Center of Excellence for Translational Neuroscience and Therapeutics, Texas Technical University Health Sciences Center, Lubbock, Texas; Department of Pharmacology and Neuroscience, Texas Technical University Health Sciences Center, Lubbock, Texas
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Intestinal Taxa Abundance and Diversity in Inflammatory Bowel Disease Patients: An Analysis including Covariates and Confounders. Nutrients 2022; 14:nu14020260. [PMID: 35057440 PMCID: PMC8778135 DOI: 10.3390/nu14020260] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 11/23/2022] Open
Abstract
Intestinal dysbiosis has been widely documented in inflammatory bowel diseases (IBDs) and is thought to influence the onset and perpetuation of gut inflammation. However, it remains unclear whether such bacterial changes rely in part on the modification of an IBD-associated lifestyle (e.g., smoking and physical activity) and diet (e.g., rich in dairy products, cereals, meat and vegetables). In this study, we investigated the impact of these habits, which we defined as confounders and covariates, on the modulation of intestinal taxa abundance and diversity in IBD patients. 16S rRNA gene sequence analysis was performed using genomic DNA extracted from the faecal samples of 52 patients with Crohn’s disease (CD) and 58 with ulcerative colitis (UC), which are the two main types of IBD, as well as 42 healthy controls (HC). A reduced microbial diversity was documented in the IBD patients compared with the HC. Moreover, we identified specific confounders and covariates that influenced the association between some bacterial taxa and disease extent (in UC patients) or behaviour (in CD patients) compared with the HC. In particular, a PERMANOVA stepwise regression identified the variables “age”, “eat yogurt at least four days per week” and “eat dairy products at least 4 days per week” as covariates when comparing the HC and patients affected by ulcerative proctitis (E1), left-sided UC (distal UC) (E2) and extensive UC (pancolitis) (E3). Instead, the variables “age”, “gender”, “eat meat at least four days per week” and “eat bread at least 4 days per week” were considered as covariates when comparing the HC with the CD patients affected by non-stricturing, non-penetrating (B1), stricturing (B2) and penetrating (B3) diseases. Considering such variables, our analysis indicated that the UC extent differentially modulated the abundance of the Bifidobacteriaceae, Rikenellaceae, Christensenellaceae, Marinifilaceae, Desulfovibrionaceae, Lactobacillaceae, Streptococcaceae and Peptostreptococcaceae families, while the CD behaviour influenced the abundance of Christensenellaceae, Marinifilaceae, Rikenellaceae, Ruminococcaceae, Barnesiellaceae and Coriobacteriaceae families. In conclusion, our study indicated that some covariates and confounders related to an IBD-associated lifestyle and dietary habits influenced the intestinal taxa diversity and relative abundance in the CD and UC patients compared with the HC. Indeed, such variables should be identified and excluded from the analysis to characterize the bacterial families whose abundance is directly modulated by IBD status, as well as disease extent or behaviour.
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Kumari M, Singh P, Nataraj BH, Kokkiligadda A, Naithani H, Azmal Ali S, Behare PV, Nagpal R. Fostering next-generation probiotics in human gut by targeted dietary modulation: An emerging perspective. Food Res Int 2021; 150:110716. [PMID: 34865747 DOI: 10.1016/j.foodres.2021.110716] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 08/07/2021] [Accepted: 09/15/2021] [Indexed: 12/16/2022]
Abstract
Emerging evidence and an in-depth understanding of the microbiome have helped in identifying beneficial commensals and their therapeutic potentials. Specific commensal taxa/ strains of the human gut microbiome have been positively associated with human health and recently termed as next-generation probiotics (NGPs). Of these, Akkermansia muciniphila, Ruminococcus bromii, Faecalibacterium prausnitzii, Anaerobutyricum hallii, and Roseburia intestinalis are the five most relevant gut-derived NGPs that have demonstrated therapeutic potential in managing metabolic diseases. Specific and natural dietary interventions can modulate the abundance and activity of these beneficial bacteria in the gut. Hence, the understanding of targeted stimulation of specific NGP by specific probiotic-targeted diets (PTD) is indispensable for the rational application of their combination. The supplementation of NGP with its specific PTD will help the strain(s) to compete with harmful microbes and acquire its niche. This combination would enhance the effectiveness of NGPs to be used as "live biotherapeutic products" or food nutraceuticals. Under the current milieu, we review various PTDs that influence the abundance of specific potential NGPs, and contemplates potential interactions between diet, microbes, and their effects on host health. Taking into account the study mentioned, we propose that combining NGPs will provide an alternate solution for developing the new diet in conjunction with PTD.
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Affiliation(s)
- Manorama Kumari
- Technofunctional Starters Lab, National Collection of Dairy Cultures, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Parul Singh
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Basavaprabhu H Nataraj
- Technofunctional Starters Lab, National Collection of Dairy Cultures, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Anusha Kokkiligadda
- Technofunctional Starters Lab, National Collection of Dairy Cultures, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Harshita Naithani
- Technofunctional Starters Lab, National Collection of Dairy Cultures, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Syed Azmal Ali
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Pradip V Behare
- Technofunctional Starters Lab, National Collection of Dairy Cultures, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India.
| | - Ravinder Nagpal
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA.
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Putignani L, Oliva S, Isoldi S, Del Chierico F, Carissimi C, Laudadio I, Cucchiara S, Stronati L. Fecal and mucosal microbiota profiling in pediatric inflammatory bowel diseases. Eur J Gastroenterol Hepatol 2021; 33:1376-1386. [PMID: 33470709 DOI: 10.1097/meg.0000000000002050] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND An altered gut microbiota profile has been widely documented in inflammatory bowel diseases (IBD). The intestinal microbial community has been more frequently investigated in the stools than at the level of the mucosa, while most of the studies have been performed in adults. We aimed to define the gut microbiota profile either by assessing fecal and colonic mucosa samples (inflamed or not) from pediatric IBD patients. PATIENTS AND METHODS Fecal and colonic samples from pediatric IBD (Crohn's disease or ulcerative colitis) and controls were analyzed. The relative abundance of bacteria at phylum and genus/species levels and bacterial diversity were determined through 16S rRNA sequence-based of fecal and mucosal microbiota analysis. RESULTS A total of 59 children with IBD (26 Crohn's disease, 33 ulcerative colitis) and 39 controls were analyzed. A clear separation between IBD and controls in the overall composition of fecal and mucosal microbiota was found, as well as a reduced bacterial richness in the fecal microbiota of IBD. At the phylum level, abundance of Proteobacteria and Actinobacteria occurred in fecal microbiota of IBD, while species with anti-inflammatory properties (i.e., Ruminococcus) were reduced. Fusobacterium prevailed in inflamed IBD areas in comparison to noninflamed and controls samples. CONCLUSION Significant alterations in gut microbiota profile were shown in our IBD pediatric patients, in whom an abundance of species with a proinflammatory mucosal activity was clearly detected. An analysis of gut microbiota could be incorporated in designing personalized IBD treatment scenarios in future.
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Affiliation(s)
| | - Salvatore Oliva
- Department of Women's and Children's Health, Sapienza University of Rome
| | - Sara Isoldi
- Department of Women's and Children's Health, Sapienza University of Rome
| | | | - Claudia Carissimi
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Ilaria Laudadio
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Laura Stronati
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
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50
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Mishra V, Bose A, Kiran S, Banerjee S, Shah IA, Chaukimath P, Reshi MM, Srinivas S, Barman A, Visweswariah SS. Gut-associated cGMP mediates colitis and dysbiosis in a mouse model of an activating mutation in GUCY2C. J Exp Med 2021; 218:212653. [PMID: 34546338 PMCID: PMC8480670 DOI: 10.1084/jem.20210479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 07/30/2021] [Accepted: 09/01/2021] [Indexed: 12/13/2022] Open
Abstract
Activating mutations in receptor guanylyl cyclase C (GC-C), the target of gastrointestinal peptide hormones guanylin and uroguanylin, and bacterial heat-stable enterotoxins cause early-onset diarrhea and chronic inflammatory bowel disease (IBD). GC-C regulates ion and fluid secretion in the gut via cGMP production and activation of cGMP-dependent protein kinase II. We characterize a novel mouse model harboring an activating mutation in Gucy2c equivalent to that seen in an affected Norwegian family. Mutant mice demonstrated elevated intestinal cGMP levels and enhanced fecal water and sodium content. Basal and linaclotide-mediated small intestinal transit was higher in mutant mice, and they were more susceptible to DSS-induced colitis. Fecal microbiome and gene expression analyses of colonic tissue revealed dysbiosis, up-regulation of IFN-stimulated genes, and misregulation of genes associated with human IBD and animal models of colitis. This novel mouse model thus provides molecular insights into the multiple roles of intestinal epithelial cell cGMP, which culminate in dysbiosis and the induction of inflammation in the gut.
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Affiliation(s)
- Vishwas Mishra
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Avipsa Bose
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Shashi Kiran
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Sanghita Banerjee
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Idrees A Shah
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Pooja Chaukimath
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Mudasir M Reshi
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Swarna Srinivas
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Anaxee Barman
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Sandhya S Visweswariah
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
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