1
|
Trouki C, Campanella B, Onor M, Vornoli A, Pozzo L, Longo V, Bramanti E. Probing the alterations in mice cecal content due to high-fat diet. Food Chem 2024; 455:139856. [PMID: 38823144 DOI: 10.1016/j.foodchem.2024.139856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/20/2024] [Accepted: 05/25/2024] [Indexed: 06/03/2024]
Abstract
The global prevalence of obesity more than doubled between 1990 and 2022. By 2022, 2.5 billion adults aged 18 and older were overweight, with over 890 million of them living with obesity. The urgent need for understanding the impact of high-fat diet, together with the demanding of analytical methods with low energy/chemicals consumption, can be fulfilled by rapid, high-throughput spectroscopic techniques. To understand the impact of high-fat diet on the metabolic signatures of mouse cecal contents, we characterized metabolite variations in two diet-groups (standard vs high-fat diet) using FTIR spectroscopy and multivariate analysis. Their cecal content showed distinct spectral features corresponding to high- and low-molecular-weight metabolites. Further quantification of 13 low-molecular-weight metabolites using liquid chromatography showed significant reduction in the production of short chain fatty acids and amino acids associated with high-fat diet samples. These findings demonstrated the potential of spectroscopy to follow changes in gut metabolites.
Collapse
Affiliation(s)
- Cheherazade Trouki
- CNR-IPCF, Institute of Chemical and Physical Processes, National Research Council, via Moruzzi 1, Pisa 56124, Italy; Department of Pharmacy, University of Pisa, Via Bonanno 6, Pisa 56126, Italy
| | - Beatrice Campanella
- CNR-ICCOM, Institute of Chemistry of Organometallic Compounds, National Research Council, via Moruzzi 1, Pisa 56124, Italy.
| | - Massimo Onor
- CNR-ICCOM, Institute of Chemistry of Organometallic Compounds, National Research Council, via Moruzzi 1, Pisa 56124, Italy
| | - Andrea Vornoli
- CNR-IBBA, Institute of Agricultural Biology and Biotechnology, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Luisa Pozzo
- CNR-IBBA, Institute of Agricultural Biology and Biotechnology, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Vincenzo Longo
- CNR-IBBA, Institute of Agricultural Biology and Biotechnology, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Emilia Bramanti
- CNR-ICCOM, Institute of Chemistry of Organometallic Compounds, National Research Council, via Moruzzi 1, Pisa 56124, Italy
| |
Collapse
|
2
|
James D, Poveda C, Walton GE, Elmore JS, Linden B, Gibson J, Griffin BA, Robertson MD, Lewis MC. Do high-protein diets have the potential to reduce gut barrier function in a sex-dependent manner? Eur J Nutr 2024; 63:2035-2054. [PMID: 38662018 DOI: 10.1007/s00394-024-03407-w] [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: 12/05/2023] [Accepted: 04/16/2024] [Indexed: 04/26/2024]
Abstract
PURPOSE Impaired gut barrier function is associated with systemic inflammation and many chronic diseases. Undigested dietary proteins are fermented in the colon by the gut microbiota which produces nitrogenous metabolites shown to reduce barrier function in vitro. With growing evidence of sex-based differences in gut microbiotas, we determined whether there were sex by dietary protein interactions which could differentially impact barrier function via microbiota modification. METHODS Fermentation systems were inoculated with faeces from healthy males (n = 5) and females (n = 5) and supplemented with 0.9 g of non-hydrolysed proteins sourced from whey, fish, milk, soya, egg, pea, or mycoprotein. Microbial populations were quantified using fluorescence in situ hybridisation with flow cytometry. Metabolite concentrations were analysed using gas chromatography, solid phase microextraction coupled with gas chromatography-mass spectrometry and ELISA. RESULTS Increased protein availability resulted in increased proteolytic Bacteroides spp (p < 0.01) and Clostridium coccoides (p < 0.01), along with increased phenol (p < 0.01), p-cresol (p < 0.01), indole (p = 0.018) and ammonia (p < 0.01), varying by protein type. Counts of Clostridium cluster IX (p = 0.03) and concentration of p-cresol (p = 0.025) increased in males, while females produced more ammonia (p = 0.02), irrespective of protein type. Further, we observed significant sex-protein interactions affecting bacterial populations and metabolites (p < 0.005). CONCLUSIONS Our findings suggest that protein fermentation by the gut microbiota in vitro is influenced by both protein source and the donor's sex. Should these results be confirmed through human studies, they could have major implications for developing dietary recommendations tailored by sex to prevent chronic illnesses.
Collapse
Affiliation(s)
- Daniel James
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading, RG6 6DZ, UK.
| | - Carlos Poveda
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading, RG6 6DZ, UK
| | - Gemma E Walton
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading, RG6 6DZ, UK
| | - J Stephen Elmore
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading, RG6 6DZ, UK
| | - Brandon Linden
- Department of Nutrition, Food & Exercise Sciences, University of Surrey, Guildford, GU2 7XH, UK
| | - John Gibson
- Food and Feed Innovations, Woodstock, Newcastle Rd, Woore, N Shropshire, CW3 95N, UK
| | - Bruce A Griffin
- Department of Nutrition, Food & Exercise Sciences, University of Surrey, Guildford, GU2 7XH, UK
| | - M Denise Robertson
- Department of Nutrition, Food & Exercise Sciences, University of Surrey, Guildford, GU2 7XH, UK
| | - Marie C Lewis
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading, RG6 6DZ, UK
| |
Collapse
|
3
|
Cañellas-Socias A, Sancho E, Batlle E. Mechanisms of metastatic colorectal cancer. Nat Rev Gastroenterol Hepatol 2024; 21:609-625. [PMID: 38806657 DOI: 10.1038/s41575-024-00934-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/17/2024] [Indexed: 05/30/2024]
Abstract
Despite extensive research and improvements in understanding colorectal cancer (CRC), its metastatic form continues to pose a substantial challenge, primarily owing to limited therapeutic options and a poor prognosis. This Review addresses the emerging focus on metastatic CRC (mCRC), which has historically been under-studied compared with primary CRC despite its lethality. We delve into two crucial aspects: the molecular and cellular determinants facilitating CRC metastasis and the principles guiding the evolution of metastatic disease. Initially, we examine the genetic alterations integral to CRC metastasis, connecting them to clinically marked characteristics of advanced CRC. Subsequently, we scrutinize the role of cellular heterogeneity and plasticity in metastatic spread and therapy resistance. Finally, we explore how the tumour microenvironment influences metastatic disease, emphasizing the effect of stromal gene programmes and the immune context. The ongoing research in these fields holds immense importance, as its future implications are projected to revolutionize the treatment of patients with mCRC, hopefully offering a promising outlook for their survival.
Collapse
Affiliation(s)
- Adrià Cañellas-Socias
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA.
| | - Elena Sancho
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Eduard Batlle
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain.
| |
Collapse
|
4
|
Jiang J, Czuchry D, Ru Y, Peng H, Shen J, Wang T, Zhao W, Chen W, Sui SF, Li Y, Li N. Activity-based metaproteomics driven discovery and enzymological characterization of potential α-galactosidases in the mouse gut microbiome. Commun Chem 2024; 7:184. [PMID: 39152233 PMCID: PMC11329505 DOI: 10.1038/s42004-024-01273-5] [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: 07/18/2024] [Accepted: 08/08/2024] [Indexed: 08/19/2024] Open
Abstract
The gut microbiota offers an extensive resource of enzymes, but many remain uncharacterized. To distinguish the activities of similar annotated proteins and mine the potentially applicable ones in the microbiome, we applied an effective Activity-Based Metaproteomics (ABMP) strategy using a specific activity-based probe (ABP) to screen the entire gut microbiome for directly discovering active enzymes and their potential applications, not for exploring host-microbiome interactions. By using an activity-based cyclophellitol aziridine probe specific to α-galactosidases (AGAL), we successfully identified and characterized several gut microbiota enzymes possessing AGAL activities. Cryo-electron microscopy analysis of a newly characterized enzyme (AGLA5) revealed the covalent binding conformations between the AGAL5 active site and the cyclophellitol aziridine ABP, which could provide insights into the enzyme's catalytic mechanism. The four newly characterized AGALs have diverse potential activities, including raffinose family oligosaccharides (RFOs) hydrolysis and enzymatic blood group transformation. Collectively, we present a ABMP platform that facilitates gut microbiota AGALs discovery, biochemical activity annotations and potential industrial or biopharmaceutical applications.
Collapse
Affiliation(s)
- Jianbing Jiang
- Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, China
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Diana Czuchry
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yanxia Ru
- School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Huipai Peng
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Junfeng Shen
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Teng Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Hubei Key Laboratory of Bioinformatics and Molecular Imaging, Center for Artificial Intelligence Biology, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Wenjuan Zhao
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Weihua Chen
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Hubei Key Laboratory of Bioinformatics and Molecular Imaging, Center for Artificial Intelligence Biology, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Sen-Fang Sui
- School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
- State Key Laboratory of Membrane Biology, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, School of Life Sciences, Tsinghua University, Beijing, 100084, China
- Cryo-EM Center, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yaowang Li
- School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.
| | - Nan Li
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
- Shenzhen Key Laboratory of Genome Manipulation and Biosynthesis, Shenzhen, China.
| |
Collapse
|
5
|
Castells-Nobau A, Mayneris-Perxachs J, Fernández-Real JM. Unlocking the mind-gut connection: Impact of human microbiome on cognition. Cell Host Microbe 2024; 32:1248-1263. [PMID: 39146797 DOI: 10.1016/j.chom.2024.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/15/2024] [Accepted: 07/19/2024] [Indexed: 08/17/2024]
Abstract
This perspective explores the current understanding of the gut microbiota's impact on cognitive function in apparently healthy humans and in individuals with metabolic disease. We discuss how alterations in gut microbiota can influence cognitive processes, focusing not only on bacterial composition but also on often overlooked components of the gut microbiota, such as bacteriophages and eukaryotes, as well as microbial functionality. We examine the mechanisms through which gut microbes might communicate with the central nervous system, highlighting the complexity of these interactions. We provide a comprehensive overview of the emerging field of microbiota-gut-brain interactions and its significance for cognitive health. Additionally, we summarize novel therapeutic strategies designed to promote cognitive resilience and reduce the risk of cognitive disorders, focusing on interventions that target the gut microbiota. An in-depth understanding of the microbiome-brain axis is imperative for developing innovative treatments aimed at improving cognitive health.
Collapse
Affiliation(s)
- Anna Castells-Nobau
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta Hospital, Girona, Spain; Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain; Integrative Systems Medicine and Biology Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain
| | - Jordi Mayneris-Perxachs
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta Hospital, Girona, Spain; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain; Integrative Systems Medicine and Biology Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta Hospital, Girona, Spain; Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain; Department of Medical Sciences, School of Medicine, University of Girona, Girona, Spain.
| |
Collapse
|
6
|
Wiarda JE, Shircliff AL, Becker SR, Stasko JB, Sivasankaran SK, Ackermann MR, Loving CL. Conserved B cell signaling, activation, and differentiation in porcine jejunal and ileal Peyer's patches despite distinct immune landscapes. Mucosal Immunol 2024:S1933-0219(24)00086-2. [PMID: 39147277 DOI: 10.1016/j.mucimm.2024.08.005] [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: 10/11/2023] [Revised: 08/01/2024] [Accepted: 08/08/2024] [Indexed: 08/17/2024]
Abstract
Peyer's patches (PPs) are B cell-rich sites of intestinal immune induction, yet PP-associated B cell signaling, activation, and differentiation are poorly defined. Single-cell and spatial transcriptomics were completed to study B cells from porcine jejunum and ileum containing PPs. Intestinal locations had distinct immune landscapes, including more follicular B cells in ileum and increased MHC-II-encoding gene expression in jejunal B cells. Despite distinct landscapes, conserved B cell dynamics were detected across intestinal locations, including B cell signaling to CD4+ macrophages that are putative phagocytic, cytotoxic, effector cells and deduced routes of B cell activation/differentiation, including resting B cells migrating into follicles to replicate/divide or differentiate into antibody-secreting cells residing in intestinal crypts. A six-biomarker panel recapitulated transcriptomics findings of B cell phenotypes, frequencies, and spatial locations via ex vivo and in situ staining. Findings convey conserved B cell dynamics across intestinal locations containing PPs, despite location-specific immune environments. Results establish a benchmark of B cell dynamics for understanding intestinal immune induction important to promoting gut/overall health.
Collapse
Affiliation(s)
- Jayne E Wiarda
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA; Oak Ridge Institute for Science and Education, Agricultural Research Service Participation Program, Oak Ridge, TN, USA
| | - Adrienne L Shircliff
- Microscopy Services Laboratory, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA
| | - Sage R Becker
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA; Oak Ridge Institute for Science and Education, Agricultural Research Service Participation Program, Oak Ridge, TN, USA; Immunobiology Graduate Program, Iowa State University, Ames, IA, USA
| | - Judith B Stasko
- Microscopy Services Laboratory, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA
| | - Sathesh K Sivasankaran
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA; Genome Informatics Facility, Iowa State University, Ames, IA, USA
| | - Mark R Ackermann
- Office of the Director, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA
| | - Crystal L Loving
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA.
| |
Collapse
|
7
|
Nastasa V, Minea B, Pasca AS, Bostanaru-Iliescu AC, Stefan AE, Gologan D, Capota R, Foia LG, Mares M. Long-Term Oral Administration of Hyperimmune Egg-Based IgY-Rich Formulations Induces Mucosal Immune Response and Systemic Increases of Cytokines Involved in Th2- and Th17-Type Immune Responses in C57BL/6 Mice. Int J Mol Sci 2024; 25:8701. [PMID: 39201385 PMCID: PMC11354499 DOI: 10.3390/ijms25168701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/29/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
Three hyperimmune egg-based formulations rich in immunoglobulin Y (IgY) were orally administered (daily, for up to 90 days) to C57BL/6 mice that were not microbially challenged. The serum levels of 32 cytokines were quantified every 30 days. Histopathology, hematology, and serum biochemistry investigations were also performed. As a sign of increased immune activity, lymphohistiocytic infiltrates were detected in the digestive tract and the liver after 30, 60, and 90 days of treatment. These infiltrates were also present in the lungs after 30 and 60 days, but not at 90 days. Blood analysis indicated systemic inflammation after 30 days of treatment: increases in pro-inflammatory cytokines, glycemia, total serum proteins, ALT, and ALP. After 60 and 90 days of treatment, the analyzed blood parameters showed mixed signs of both increased and decreased inflammation. The increased cytokines, which varied with formulation and time of exposure, indicated a combination of mostly Th17- and Th2-type immune responses. As the mice were healthy and housed in standardized sanitary conditions, and were not microbially challenged, the data were consistent with an interaction of IgY with the gut-associated lymphoid tissue as the main mechanism of action. This interaction generated a local immune response, which subsequently induced a systemic response.
Collapse
Affiliation(s)
- Valentin Nastasa
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Bogdan Minea
- Department of Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy of Iasi, 16 Universitatii Street, 700115 Iasi, Romania;
| | - Aurelian-Sorin Pasca
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Andra-Cristina Bostanaru-Iliescu
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Alina-Elena Stefan
- Doctoral School, Department of Pathology, Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 59 Mărăşti Boulevard, 011464 Bucharest, Romania;
- Department of Research and Development, Themis Pathology SRL, 56F 1 Decembrie 1918 Boulevard, 032468 Bucharest, Romania;
| | - Daniela Gologan
- Department of Research and Development, Themis Pathology SRL, 56F 1 Decembrie 1918 Boulevard, 032468 Bucharest, Romania;
- Doctoral School, Department of Organic Chemistry, Faculty of Chemical Engineering and Biotechnologies, Politehnica University, 313 Splaiul Independenţei, 060042 Bucharest, Romania
| | - Robert Capota
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Liliana-Georgeta Foia
- Department of Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy of Iasi, 16 Universitatii Street, 700115 Iasi, Romania;
| | - Mihai Mares
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| |
Collapse
|
8
|
Böswald LF, Popper B, Matzek D, Neuhaus K, Wenderlein J. Characterization of the gastrointestinal microbiome of the Syrian hamster (Mesocricetus auratus) and comparison to data from mice. FEBS Open Bio 2024. [PMID: 39097990 DOI: 10.1002/2211-5463.13869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 06/21/2024] [Accepted: 07/17/2024] [Indexed: 08/06/2024] Open
Abstract
Syrian hamsters (Mesocricetus auratus) have been increasingly used as rodent models in recent years, especially for SARS-CoV-2 since the pandemic. However, the physiology of this animal model is not yet well-understood, even less when considering the digestive tract. Generally, the gastrointestinal microbiome influences the immune system, drug metabolism, and vaccination efficacy. However, a detailed understanding of the gastrointestinal microbiome of hamsters is missing. Therefore, we analyzed 10 healthy 11-week-old RjHan:AURA hamsters fed a pelleted standard diet. Their gastrointestinal content was sampled (i.e., forestomach, glandular stomach, ileum, cecum, and colon) and analyzed using 16S rRNA gene amplicon sequencing. Results displayed a distinct difference in the bacterial community before and after the cecum, possibly due to the available nutrients and digestive functions. Next, we compared hamsters with the literature data of young-adult C57BL/6J mice, another important animal model. We sampled the same gastrointestinal regions and analyzed the differences in the microbiome between both rodents. Surprisingly, we found strong differences in their specific gastrointestinal bacterial communities. For instance, Lactobacillaceae were more abundant in hamsters' forestomach and ileum, while Muribaculaceae dominated in the mouse forestomach and ileum. Similarly, in mouse cecum and colon, Muribaculaceae were dominant, while in hamsters, Lachnospiraceae and Erysipelotrichaceae dominated the bacterial community. Molecular strains of Muribaculaceae in both rodent species displayed some species specificity. This comparison allows a better understanding of the suitability of the Syrian hamster as an animal model, especially regarding its comparability to other rodent models. Thereby, this work contributes to the characterization of the hamster model and allows better experimental planning.
Collapse
Affiliation(s)
- Linda F Böswald
- Core Facility Animal Models, Biomedical Center, Medical Faculty, LMU Munich, Planegg-Martinsried, Germany
| | - Bastian Popper
- Core Facility Animal Models, Biomedical Center, Medical Faculty, LMU Munich, Planegg-Martinsried, Germany
| | - Dana Matzek
- Core Facility Animal Models, Biomedical Center, Medical Faculty, LMU Munich, Planegg-Martinsried, Germany
| | - Klaus Neuhaus
- Core Facility Microbiome, ZIEL Institute for Food & Health, Technical University of Munich, Freising, Germany
| | - Jasmin Wenderlein
- Chair for Bacteriology and Mycology, Department of Veterinary Sciences, Faculty of Veterinary Medicine, Institute for Infectious Diseases and Zoonoses, LMU Munich, Oberschleißheim, Germany
- Department for Biological Safety, Federal Institute for Risk Assessment, Berlin, Germany
| |
Collapse
|
9
|
Marzinelli EM, Thomas T, Vadillo Gonzalez S, Egan S, Steinberg PD. Seaweeds as holobionts: Current state, challenges, and potential applications. JOURNAL OF PHYCOLOGY 2024; 60:785-796. [PMID: 39047050 DOI: 10.1111/jpy.13485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024]
Abstract
Seaweeds play a strong ecological and economical role along the world's coastlines, where they support industries (e.g., aquaculture, bioproducts) and essential ecosystem services (e.g., biodiversity, fisheries, carbon capture). Evidence from wild and cultured seaweeds suggests that microorganisms play crucial roles in their health and functioning, prompting the need for considering seaweeds and their microbiome as a coherent entity or "holobiont." Here we show that the number of studies investigating seaweed hosts and their microbiome have increased in the last two decades. This likely reflects the increase in the appreciation of the importance of microbiomes for eukaryotic hosts, improved molecular approaches used to characterize their interactions, and increasing interest in commercial use of seaweeds. However, although increasing, most studies of seaweed holobionts have focused on (i) a few seaweed species of ecological or commercial significance, (ii) interactions involving only bacteria, and (iii) descriptive rather than experimental approaches. The relatively few experimental studies have mostly focused on manipulating abiotic factors to examine responses of seaweeds and their microbiome. Of the few studies that directly manipulated microorganisms to investigate their effects on seaweeds, most were done in laboratory or aquaria. We emphasize the need to move beyond the descriptions of patterns to experimental approaches for understanding causation and mechanisms. We argue that such experimental approaches are necessary for a better understanding of seaweed holobionts, for management actions for wild and cultivated seaweeds, and to better integrate studies of seaweed holobionts with the broader fields of seaweed ecology and biology, which are strongly experimental.
Collapse
Affiliation(s)
- Ezequiel M Marzinelli
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Torsten Thomas
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Sebastian Vadillo Gonzalez
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Suhelen Egan
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Peter D Steinberg
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
| |
Collapse
|
10
|
Li S, Liu Z, Zhang Q, Su D, Wang P, Li Y, Shi W, Zhang Q. The Antidiabetic Potential of Probiotics: A Review. Nutrients 2024; 16:2494. [PMID: 39125375 PMCID: PMC11313988 DOI: 10.3390/nu16152494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/26/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Diabetes has become one of the most prevalent global epidemics, significantly impacting both the economy and the health of individuals. Diabetes is associated with numerous complications, such as obesity; hyperglycemia; hypercholesterolemia; dyslipidemia; metabolic endotoxemia; intestinal barrier damage; insulin-secretion defects; increased oxidative stress; and low-grade, systemic, and chronic inflammation. Diabetes cannot be completely cured; therefore, current research has focused on developing various methods to control diabetes. A promising strategy is the use of probiotics for diabetes intervention. Probiotics are a class of live, non-toxic microorganisms that can colonize the human intestine and help improve the balance of intestinal microbiota. In this review, we summarize the current clinical studies on using probiotics to control diabetes in humans, along with mechanistic studies conducted in animal models. The primary mechanism by which probiotics regulate diabetes is improved intestinal barrier integrity, alleviated oxidative stress, enhanced immune response, increased short-chain fatty acid production, etc. Therefore, probiotic supplementation holds great potential for the prevention and management of diabetes.
Collapse
Affiliation(s)
- Shiming Li
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (S.L.); (Z.L.); (Q.Z.); (P.W.); (Y.L.)
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100193, China
| | - Zichao Liu
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (S.L.); (Z.L.); (Q.Z.); (P.W.); (Y.L.)
| | - Qi Zhang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (S.L.); (Z.L.); (Q.Z.); (P.W.); (Y.L.)
| | - Dan Su
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, USA;
| | - Pengjie Wang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (S.L.); (Z.L.); (Q.Z.); (P.W.); (Y.L.)
| | - Yixuan Li
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (S.L.); (Z.L.); (Q.Z.); (P.W.); (Y.L.)
| | - Wenbiao Shi
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (S.L.); (Z.L.); (Q.Z.); (P.W.); (Y.L.)
| | - Qian Zhang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (S.L.); (Z.L.); (Q.Z.); (P.W.); (Y.L.)
| |
Collapse
|
11
|
Singh S, Koo OK. A Comprehensive Review Exploring the Protective Role of Specific Commensal Gut Bacteria against Salmonella. Pathogens 2024; 13:642. [PMID: 39204243 PMCID: PMC11356920 DOI: 10.3390/pathogens13080642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 09/03/2024] Open
Abstract
Gut microbiota is a diverse community of microorganisms that constantly work to protect the gut against pathogens. Salmonella stands out as a notorious foodborne pathogen that interacts with gut microbes, causing an imbalance in the overall composition of microbiota and leading to dysbiosis. This review focuses on the interactions between Salmonella and the key commensal bacteria such as E. coli, Lactobacillus, Clostridium, Akkermansia, and Bacteroides. The review highlights the role of these gut bacteria and their synergy in combating Salmonella through several mechanistic interactions. These include the production of siderophores, which compete with Salmonella for essential iron; the synthesis of short-chain fatty acids (SCFAs), which exert antimicrobial effects and modulate the gut environment; the secretion of bacteriocins, which directly inhibit Salmonella growth; and the modulation of cytokine responses, which influences the host's immune reaction to infection. While much research has explored Salmonella, this review aims to better understand how specific gut bacteria engage with the pathogen, revealing distinct defense mechanisms tailored to each species and how their synergy may lead to enhanced protection against Salmonella. Furthermore, the combination of these commensal bacteria could offer promising avenues for bacteria-mediated therapy during Salmonella-induced gut infections in the future.
Collapse
Affiliation(s)
| | - Ok Kyung Koo
- Department of Food Science & Technology, Chungnam National University, Daejeon 34134, Republic of Korea;
| |
Collapse
|
12
|
Sartorius A, Johnson MF, Young S, Bennett M, Baiker K, Edwards P, Yon L. Trace metal accumulation through the environment and wildlife at two derelict lead mines in Wales. Heliyon 2024; 10:e34265. [PMID: 39082009 PMCID: PMC11284397 DOI: 10.1016/j.heliyon.2024.e34265] [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: 04/19/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 08/02/2024] Open
Abstract
Trace metal pollution is globally widespread, largely resulting from human activities. Due to the persistence and high toxicity of trace metals, these pollutants can have serious effects across ecosystems. However, few studies have directly assessed the presence and impact of trace metal pollution across ecosystems, specifically across multiple environmental sources and animal taxa. This study was designed to assess the environmental health impacts of trace metal pollution by assessing its extent and possible transfer into wildlife in the areas surrounding two abandoned metalliferous mine complexes in Wales in the UK. Water, sediment, and soil at the mine sites and in areas downstream had notably elevated concentrations of Pb, Zn, and, to a lesser extent, Cd and Cu, when compared to nearby control sites. These high trace metal concentrations were mirrored in the body burdens of aquatic invertebrates collected in the contaminated streams both at, and downstream of, the mines. Wood mice collected in contaminated areas appeared to be able to regulate their Zn and Cu tissue concentrations, but, when compared to wood mice from a nearby control site, they had significantly elevated concentrations of Cd and, particularly, Pb, detected in their kidney, liver, and bone samples. The Pb concentrations found in these tissues correlated strongly with local soil concentrations (kidney: ρ = 0.690; liver: ρ = 0.668, bone: ρ = 0.649), and were potentially indicative of Pb toxicity in between 10 % and 82 % of the rodents sampled at the mine sites and in areas downstream. The high trace metal concentrations found in the environment and in common prey species (invertebrates and rodents) indicates that trace metal pollution can have far-reaching, ecosystem-wide health impacts long after the polluting activity has ceased, and far beyond the originating site of the pollution.
Collapse
Affiliation(s)
- Andrea Sartorius
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| | | | - Scott Young
- School of Biosciences, University of Nottingham, Sutton Bonington, UK
| | - Malcolm Bennett
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| | - Kerstin Baiker
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| | | | - Lisa Yon
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| |
Collapse
|
13
|
Wang Z, Li L, Li W, Yan H, Yuan Y. Salidroside Alleviates Furan-Induced Impaired Gut Barrier and Inflammation via Gut Microbiota-SCFA-TLR4 Signaling. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16484-16495. [PMID: 38990698 DOI: 10.1021/acs.jafc.4c02433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
As a food contaminant that can be quickly absorbed through the gastrointestinal system, furan has been shown to disrupt the intestinal flora and barrier. Investigation of the intestinal toxicity mechanism of furan is of great significance to health. We previously identified the regulatory impact of salidroside (SAL) against furan-provoked intestinal damage, and the present work further explored whether the alleviating effect of SAL against furan-caused intestinal injury was based on the intestinal flora; three models, normal, pseudo-germ-free, and fecal microbiota transplantation (FMT), were established, and the changes in intestinal morphology, barrier, and inflammation were observed. Moreover, 16S rDNA sequencing observed the variation of the fecal flora associated with inflammation and short-chain fatty acids (SCFAs). Results obtained from the LC-MS/MS suggested that SAL increased furan-inhibited SCFA levels, activated the mRNA expressions of SCFA receptors (GPR41, GPR43, and GPR109A), and inhibited the furan-activated TLR4/MyD88/NF-κB signaling. Analysis of protein-protein interaction further confirmed the aforementioned effects of SAL, which inhibited furan-induced barrier damage and intestinal inflammation.
Collapse
Affiliation(s)
- Ziyue Wang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Lu Li
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Wenliang Li
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Haiyang Yan
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Yuan Yuan
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| |
Collapse
|
14
|
Sey EA, Warris A. The gut-lung axis: the impact of the gut mycobiome on pulmonary diseases and infections. OXFORD OPEN IMMUNOLOGY 2024; 5:iqae008. [PMID: 39193472 PMCID: PMC11316619 DOI: 10.1093/oxfimm/iqae008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 08/29/2024] Open
Abstract
The gastrointestinal tract contains a diverse microbiome consisting of bacteria, fungi, viruses and archaea. Although these microbes usually reside as commensal organisms, it is now well established that higher abundance of specific bacterial or fungal species, or loss of diversity in the microbiome can significantly affect development, progression and outcomes in disease. Studies have mainly focused on the effects of bacteria, however, the impact of other microbes, such as fungi, has received increased attention in the last few years. Fungi only represent around 0.1% of the total gut microbial population. However, key fungal taxa such as Candida, Aspergillus and Wallemia have been shown to significantly impact health and disease. The composition of the gut mycobiome has been shown to affect immunity at distal sites, such as the heart, lung, brain, pancreas, and liver. In the case of the lung this phenomenon is referred to as the 'gut-lung axis'. Recent studies have begun to explore and unveil the relationship between gut fungi and lung immunity in diseases such as asthma and lung cancer, and lung infections caused by viruses, bacteria and fungi. In this review we will summarize the current, rapidly growing, literature describing the impact of the gut mycobiome on respiratory disease and infection.
Collapse
Affiliation(s)
- Emily A Sey
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, EX4 4QD, UK
| | - Adilia Warris
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, EX4 4QD, UK
| |
Collapse
|
15
|
Brasino DSK, Speese SD, Schilling K, Schutt CE, Barton MC. A Linkable, Polycarbonate Gut Microbiome-Distal Tumor Chip Platform for Interrogating Cancer Promoting Mechanisms. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2309220. [PMID: 39023197 DOI: 10.1002/advs.202309220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/31/2024] [Indexed: 07/20/2024]
Abstract
Gut microbiome composition is tied to diseases ranging from arthritis to cancer to depression. However, mechanisms of action are poorly understood, limiting development of relevant therapeutics. Organ-on-chip platforms, which model minimal functional units of tissues and can tightly control communication between them, are ideal platforms to study these relationships. Many gut microbiome models are published to date but devices are typically fabricated using oxygen permeable polydimethylsiloxane, requiring interventions to support anaerobic bacteria. To address this challenge, a platform is developed where the chips are fabricated entirely from gas-impermeable polycarbonate without tapes or gaskets. These chips replicate polarized villus-like structures of the native tissue. Further, they enable co-cultures of commensal anaerobic bacteria Blautia coccoides on the surface of gut epithelia for two days within a standard incubator. Another complication of commonly used materials in organ-on-chip devices is high ad-/absorption, limiting applications in high-resolution microscopy and biomolecule interaction studies. For future communication studies between gut microbiota and distal tumors, an additional polycarbonate chip design is developed to support hydrogel-embedded tissue culture. These chips enable high-resolution microscopy with all relevant processing done on-chip. Designed for facile linking, this platform will make a variety of mechanistic studies possible.
Collapse
Affiliation(s)
- Danielle S K Brasino
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Sean D Speese
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Kevin Schilling
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Carolyn E Schutt
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97201, USA
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Michelle C Barton
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97201, USA
| |
Collapse
|
16
|
Lugtmeijer C, Bowtell JL, O’Leary M. Tissue-Level Effect of Andrographis and Ashwagandha Metabolites on Metabolic and Inflammatory Gene Expression in Skeletal Muscle and Adipose Tissue: An Ex Vivo/In Vitro Investigation. Nutrients 2024; 16:2291. [PMID: 39064738 PMCID: PMC11279956 DOI: 10.3390/nu16142291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/09/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
Adipose tissue and skeletal muscle dysfunction play a central role in cardiometabolic morbidity. Ashwagandha and Andrographis are purported to have anti-inflammatory and antioxidant activity, but this is based on exposure of cells to the parent compounds ignoring phytochemical absorption and metabolism. We explored the anti-inflammatory/antioxidant effects of ashwagandha and Andrographis in ex vivo human models of skeletal muscle and adipose tissue. Healthy participants supplemented with 2000 mg/day Andrographis (n = 10) or 1100 mg/day ashwagandha (n = 10) for 28 days. Sera collected pre (D0) and post (D28) supplementation were pooled by timepoint and added to adipose explant (AT) and primary human myotube (SKMC) culture media (15% v/v) for treatment. A Taqman panel of 56 genes was used to quantify these. In AT, treatment with ashwagandha sera decreased the expression of genes involved in antioxidant defence and inflammatory response (CCL5, CD36, IL6, IL10, ADIPOQ, NFEL2, UCP2, GPX3, GPX4; geometric 95% CI for fold change > 1) and altered the expression of genes involved in fatty acid metabolism. In SKMC, ashwagandha sera altered FOXO1 and SREBF1 expression. Andrographis sera decreased IL18 and SERPINEA3 expression in AT. This physiologically relevant in vitro screening characterises the effects of ashwagandha in AT to guide future clinical trials.
Collapse
Affiliation(s)
| | | | - Mary O’Leary
- Faculty of Health and Life Sciences, Department of Public Health and Sport Sciences, University of Exeter, Exeter EX1 2LU, UK; (C.L.); (J.L.B.)
| |
Collapse
|
17
|
Schrock J, Yan M, Dolatyabi S, Patil V, Yadagiri G, Renu S, Ramesh A, Wood R, Hanson J, Yu Z, Renukaradhya GJ. Human Infant Fecal Microbiota Differentially Influences the Mucosal Immune Pathways Upon Influenza Infection in a Humanized Gnotobiotic Pig Model. Curr Microbiol 2024; 81:267. [PMID: 39003673 PMCID: PMC11247059 DOI: 10.1007/s00284-024-03785-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 06/20/2024] [Indexed: 07/15/2024]
Abstract
In this study, we evaluated the impact of human gut microbiota on the immune pathways in the respiratory tract using a gnotobiotic (Gn) piglet model. We humanized piglets with rural and urban infant fecal microbiota (RIFM and UIFM, respectively) and then infected them with a H1N1 swine influenza virus. We analyzed the microbial diversity and structure of the intestinal and respiratory tracts of the piglets before and after the influenza virus infection and measured the viral load and immune responses. We found that the viral load in the upper respiratory tract of UIFM transplanted piglets was higher than their rural cohorts (RIFM), while virus-specific antibody responses were comparable. The relative cytokine gene expression in the tracheobronchial (respiratory tract) and mesenteric (gastrointestinal) lymph nodes, lungs, blood, and spleen of RIFM and UIFM piglets revealed a trend in reciprocal regulation of proinflammatory, innate, and adaptive immune-associated cytokines as well as the frequency of T-helper/memory cells, cytotoxic T cells, and myeloid immune cell subsets. We also observed different phylum-level shifts of the fecal microbiota in response to influenza virus infection between the two piglet groups, suggesting the potential impact of the gut microbiota on the immune responses to influenza virus infection and lung microbiota. In conclusion, Gn piglets humanized with diverse infant fecal microbiota had differential immune regulation, with UIFM favoring the activation of proinflammatory immune mediators following an influenza virus infection compared to their rural RIFM cohorts. Furthermore, Gn piglets can be a useful model in investigating the impact of diverse human microbiota of the gastrointestinal tract, probably also the respiratory tract, on respiratory health and testing specific probiotic- or prebiotic-based therapeutics.
Collapse
Affiliation(s)
- Jennifer Schrock
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Ming Yan
- Department of Animal Sciences, CFAES, The Ohio State University, Columbus, USA
- Center of Microbiome Science, The Ohio State University, Columbus, OH, USA
| | - Sara Dolatyabi
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Veerupaxagouda Patil
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Ganesh Yadagiri
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Sankar Renu
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Anikethana Ramesh
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Ronna Wood
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Juliette Hanson
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA
| | - Zhongtang Yu
- Department of Animal Sciences, CFAES, The Ohio State University, Columbus, USA.
- Center of Microbiome Science, The Ohio State University, Columbus, OH, USA.
| | - Gourapura J Renukaradhya
- Department of Animal Sciences, Center for Food Animal Health (CFAH), College of Food Agricultural and Environmental Sciences (CFAES), 1680 Madison Avenue, Wooster, OH, 44691, USA.
| |
Collapse
|
18
|
Aktas B, Aslim B, Ozdemir DA. A neurotherapeutic approach with Lacticaseibacillus rhamnosus E9 on gut microbiota and intestinal barrier in MPTP-induced mouse model of Parkinson's disease. Sci Rep 2024; 14:15460. [PMID: 38965287 PMCID: PMC11224381 DOI: 10.1038/s41598-024-65061-w] [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: 02/01/2024] [Accepted: 06/17/2024] [Indexed: 07/06/2024] Open
Abstract
The gut microbiota plays a crucial role in neural development and progression of neural disorders like Parkinson's disease (PD). Probiotics have been suggested to impact neurodegenerative diseases via gut-brain axis. This study aims to investigate the therapeutic potential of Lacticaseibacillus rhamnosus E9, a high exopolysaccharide producer, on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP)-induced mouse model of PD. C57BL/6 mice subjected to MPTP were fed L. rhamnosus E9 for fifteen days and sacrificed after the last administration. Motor functions were determined by open-field, catalepsy, and wire-hanging tests. The ileum and the brain tissues were collected for ELISA, qPCR, and immunohistochemistry analyses. The cecum content was obtained for microbiota analysis. E9 supplementation alleviated MPTP-induced motor dysfunctions accompanied by decreased levels of striatal TH and dopamine. E9 also reduced the level of ROS in the striatum and decreased the DAT expression while increasing the DR1. Furthermore, E9 improved intestinal integrity by enhancing ZO-1 and Occludin levels and reversed the dysbiosis of the gut microbiota induced by MPTP. In conclusion, E9 supplementation improved the MPTP-induced motor deficits and neural damage as well as intestinal barrier by modulating the gut microbiota in PD mice. These findings suggest that E9 supplementation holds therapeutic potential in managing PD through the gut-brain axis.
Collapse
Affiliation(s)
- Busra Aktas
- Department of Molecular Biology and Genetics, Burdur Mehmet Akif Ersoy University, Burdur, 15200, Turkey.
| | - Belma Aslim
- Department of Biology, Faculty of Science, Gazi University, Ankara, 06500, Turkey
| | - Deniz Ates Ozdemir
- Department of Pathology, Faculty of Medicine, Hacettepe University, Ankara, 06230, Turkey
| |
Collapse
|
19
|
Leclercq S, de Timary P. Role of the Microbiome and the Gut-Brain Axis in Alcohol Use Disorder: Potential Implication for Treatment Development. Curr Top Behav Neurosci 2024. [PMID: 38914878 DOI: 10.1007/7854_2024_478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
The gut microbiota is constituted by trillions of microorganisms colonizing the human intestine. Studies conducted in patients with alcohol use disorder (AUD) have shown altered microbial composition related to bacteria, viruses, and fungi.This review describes the communication pathways between the gut and the brain, including the ones related to the bacterial metabolites, the inflammatory cytokines, and the vagus nerve. We described in more detail the gut-derived metabolites that have been shown to be implicated in AUD or that could potentially be involved in the development of AUD due to their immune and/or neuroactive properties, including tryptophan-derivatives, tyrosine-derivatives, short chain fatty acids.Finally, we discussed the potential beneficial effects of microbiome-based therapies for AUD such as probiotics, prebiotics, postbiotic, and phage therapy.
Collapse
Affiliation(s)
- Sophie Leclercq
- Laboratory of Nutritional Psychiatry, Institute of Neuroscience, Université Catholique de Louvain, Brussels, Belgium
| | - Philippe de Timary
- Department of Adult Psychiatry, Cliniques Universitaires Saint-Luc, Brussels, Belgium.
| |
Collapse
|
20
|
Jang Y, Nyamjav I, Kim HR, Suh DE, Park N, Lee YE, Lee S. Identification of plastic-degrading bacteria in the human gut. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172775. [PMID: 38670383 DOI: 10.1016/j.scitotenv.2024.172775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
Environmental pollution caused by the excessive use of plastics has resulted in the inflow of microplastics into the human body. However, the effects of microplastics on the human gut microbiota still need to be better understood. To determine whether plastic-degrading bacteria exist in the human gut, we collected the feces of six human individuals, did enrichment cultures and screened for bacterial species with a low-density polyethylene (LDPE) or polypropylene (PP)-degrading activity using a micro-spray method. We successfully isolated four bacterial species with an LDPE-degrading activity and three with a PP-degrading activity. Notably, all bacterial species identified with an LDPE or PP-degrading activity were opportunistic pathogens. We analyzed the microbial degradation of the LDPE or PP surface using scanning electron microscopy and confirmed that each bacterial species caused the physical changes. Chemical structural changes were further investigated using X-ray photoelectron spectroscopy and Fourier-transform-infrared spectroscopy, confirming the oxidation of the LDPE or PP surface with the formation of carbonyl groups (C=O), ester groups (CO), and hydroxyl groups (-OH) by each bacterial species. Finally, high temperature gel permeation chromatography (HT-GPC) analysis showed that these bacterial species performed to a limited extent depolymerization. These results indicate that, as a single species, these opportunistic pathogens in the human gut have a complete set of enzymes and other components required to initiate the oxidation of the carbon chains of LDPE or PP and to degrade them. Furthermore, these findings suggest that these bacterial species can potentially biodegrade and metabolize microplastics in the human gut.
Collapse
Affiliation(s)
- Yejin Jang
- School of Undergraduate Studies, College of Transdisciplinary Studies, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Indra Nyamjav
- Department of Brain Sciences, Graduate School, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Hong Rae Kim
- Department of Research and Development, Repla Inc., Suwon 16679, Republic of Korea
| | - Dong-Eun Suh
- Department of Research and Development, Repla Inc., Suwon 16679, Republic of Korea
| | - Nohyoon Park
- School of Undergraduate Studies, College of Transdisciplinary Studies, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Ye Eun Lee
- Department of Brain Sciences, Graduate School, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Sukkyoo Lee
- Department of Brain Sciences, Graduate School, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
| |
Collapse
|
21
|
Osawa R, Fukuda I, Shirai Y. Evaluating functionalities of food components by a model simulating human intestinal microbiota constructed at Kobe University. Curr Opin Biotechnol 2024; 87:103103. [PMID: 38447326 DOI: 10.1016/j.copbio.2024.103103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 03/08/2024]
Abstract
In this era of pandemics, reducing the risk of lifestyle-related diseases (LRD) by functional foods is of paramount importance. The conventional process of functional food development almost invariably involves in vitro, animal, and human intervention trials, but differences in intestinal environments between humans and experimental animals make it difficult to develop functional foods that are truly effective in humans. Thus, it is necessary to construct a model that simulates the human intestinal environment to evaluate the functionality of any food component before subjecting it to a human intervention trial. In this review, we provide an overview of a model simulating human intestinal microbiota constructed at Kobe University and its use as a tool to identify food components that contribute to the prevention and treatment of LRD.
Collapse
Affiliation(s)
- Ro Osawa
- Department of Agrobioscience, Graduate School of Agricultural Science & Research Center for Food Safety and Security, Graduate School of Agricultural Science, Kobe University, Kobe, Japan.
| | - Itsuko Fukuda
- Department of Agrobioscience, Graduate School of Agricultural Science & Research Center for Food Safety and Security, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Yasuhito Shirai
- Department of Agrobioscience, Graduate School of Agricultural Science & Research Center for Food Safety and Security, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| |
Collapse
|
22
|
Kim J, Kim H, Jeon HJ, Jung YH, Yang J. Lacticaseibacillus Casei IDCC 3451 Strengthen Digestibility of Plant-based Proteins in Mice. Probiotics Antimicrob Proteins 2024; 16:927-935. [PMID: 37204697 DOI: 10.1007/s12602-023-10091-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2023] [Indexed: 05/20/2023]
Abstract
The demand for plant-based proteins as alternative meat sources continues to increase because of environmental concerns, animal welfare, and religious reasons. However, plant-based proteins have low digestibility than real meat, which should be overcome. In the present study, the effect of co-administration of legumin protein mixture and the probiotic strain on plasma concentration of amino acids was investigated as a strategy of enhancement in protein digestion. First, the proteolytic activity of the four probiotic strains was compared. As a result, Lacticaseibacillus casei IDCC 3451 was identified as an optimal probiotic strain that efficiently digested the legumin protein mixture by forming the largest halo produced by proteolysis. Next, to investigate whether the co-administration of legumin protein mixture and L. casei IDCC 3451 could synergically improve digestibility, mice were fed either a high-protein diet or a high-protein diet with L. casei IDCC 3451 for 8 weeks. Compared to only in the high-protein diet only group, the concentrations of branched chain amino acids and essential amino acids were 1.36 and 1.41 times higher in the co-administered group, respectively. Therefore, co-supplementation of plant-based proteins with L. casei IDCC 3451 can be suggested to improve protein digestibility based on the this study.
Collapse
Affiliation(s)
- Jungyeon Kim
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Hayoung Kim
- Ildong Bioscience, Pyeongtaek-Si, Gyeonggi-Do, 17957, Republic of Korea
| | - Hyeon Ji Jeon
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-Si, Gyeonggi-Do, 17957, Republic of Korea.
| |
Collapse
|
23
|
Sharma SA, Oladejo SO, Kuang Z. Chemical interplay between gut microbiota and epigenetics: Implications in circadian biology. Cell Chem Biol 2024:S2451-9456(24)00178-8. [PMID: 38776923 DOI: 10.1016/j.chembiol.2024.04.016] [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: 12/15/2023] [Revised: 03/22/2024] [Accepted: 04/26/2024] [Indexed: 05/25/2024]
Abstract
Circadian rhythms are intrinsic molecular mechanisms that synchronize biological functions with the day/night cycle. The mammalian gut is colonized by a myriad of microbes, collectively named the gut microbiota. The microbiota impacts host physiology via metabolites and structural components. A key mechanism is the modulation of host epigenetic pathways, especially histone modifications. An increasing number of studies indicate the role of the microbiota in regulating host circadian rhythms. However, the mechanisms remain largely unknown. Here, we summarize studies on microbial regulation of host circadian rhythms and epigenetic pathways, highlight recent findings on how the microbiota employs host epigenetic machinery to regulate circadian rhythms, and discuss its impacts on host physiology, particularly immune and metabolic functions. We further describe current challenges and resources that could facilitate research on microbiota-epigenetic-circadian rhythm interactions to advance our knowledge of circadian disorders and possible therapeutic avenues.
Collapse
Affiliation(s)
- Samskrathi Aravinda Sharma
- Department of Biological Sciences, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Sarah Olanrewaju Oladejo
- Department of Biological Sciences, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - Zheng Kuang
- Department of Biological Sciences, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA.
| |
Collapse
|
24
|
Lee J, Menon N, Lim CT. Dissecting Gut-Microbial Community Interactions using a Gut Microbiome-on-a-Chip. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2302113. [PMID: 38414327 PMCID: PMC11132043 DOI: 10.1002/advs.202302113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 07/21/2023] [Indexed: 02/29/2024]
Abstract
While the human gut microbiota has a significant impact on gut health and disease, understanding of the roles of gut microbes, interactions, and collective impact of gut microbes on various aspects of human gut health is limited by the lack of suitable in vitro model system that can accurately replicate gut-like environment and enable the close visualization on causal and mechanistic relationships between microbial constitutents and the gut. , In this study, we present a scalable Gut Microbiome-on-a-Chip (GMoC) with great imaging capability and scalability, providing a physiologically relevant dynamic gut-microbes interfaces. This chip features a reproducible 3D stratified gut epithelium derived from Caco-2 cells (µGut), mimicking key intestinal architecture, functions, and cellular complexity, providing a physiolocially relevant gut environment for microbes residing in the gut. Incorporating tumorigenic bacteria, enterotoxigenic Bacteroides fragilis (ETBF), into the GMoC enable the observation of pathogenic behaviors of ETBF, leading to µGut disruption and pro-tumorigenic signaling activations. Pre-treating the µGut with a beneficial gut microbe Lactobacillus spp., effectively prevent ETBF-mediated gut pathogenesis, preserving the healthy state of the µGut through competition-mediated colonization resistance. The GMoC holds potential as a valuable tool for exploring unknown roles of gut microbes in microbe-induced pathogenesis and microbe-based therapeutic development.
Collapse
Affiliation(s)
- Jeeyeon Lee
- Institute for Health Innovation and Technology (iHealthtech)National University of SingaporeSingapore117599Singapore
| | - Nishanth Menon
- Department of Biomedical EngineeringNational University of SingaporeSingapore117583Singapore
| | - Chwee Teck Lim
- Institute for Health Innovation and Technology (iHealthtech)National University of SingaporeSingapore117599Singapore
- Department of Biomedical EngineeringNational University of SingaporeSingapore117583Singapore
- Mechanobiology InstituteNational University of SingaporeSingapore117411Singapore
| |
Collapse
|
25
|
Guo J, Zhao Y, Kang SG, Huang K, Tong T. Differential effects of four laboratory animal control diets on gut microbiota in mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:4438-4452. [PMID: 38323712 DOI: 10.1002/jsfa.13331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND The gut microbiota is intricate and susceptible to multiple factors, with diet being a major contributor. The present study aimed to investigate the impact of four commonly used laboratory animal control diets, namely Keao Xieli's maintenance diet (KX), HFK's 1025 (HF), Research Diets' D12450B (RD), and Lab Diet's 5CC4 (LD), on the gut microbiota of mice. RESULTS A total of 40 mice were randomly assigned to four groups, and each group was fed one of the four diets for a duration of 8 weeks. The assessment of gut microbiota was conducted using 16S rRNA sequencing both at the beginning of the study (week 0) and the end (week 8), which served as the baseline and endpoint samples, respectively. Following the 8-week feeding period, no significant differences were observed in physiological parameters, including body weight, visceral weight, and blood biochemical indices, across the four groups. Nonetheless, relative to the baseline, discernible alterations in the gut microbiota were observed in all groups, encompassing shifts in beta-diversity, hierarchical clustering, and key genera. Among the four diets, HF diet exhibited a significant influence on alpha-diversity, RD diet brought about notable changes in microbial composition at the phylum level, and LD diet demonstrated an interconnected co-occurrence network. Mantel analysis indicated no significant correlation between physiological parameters and gut microbiota in the four groups. CONCLUSION Overall, our study demonstrated that the four control diets had a minimal impact on physiological parameters, while exerting a distinct influence on the gut microbiota after 8 weeks. © 2024 Society of Chemical Industry.
Collapse
Affiliation(s)
- Jingya Guo
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P. R. China
| | - Yuhan Zhao
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P. R. China
| | - Seong-Gook Kang
- Department of Food Engineering and Solar Salt Research Center, Mokpo National University, Muangun, Republic of Korea
| | - Kunlun Huang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, P. R. China
- Beijing Laboratory for Food Quality and Safety, Beijing, P. R. China
| | - Tao Tong
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, P. R. China
- Beijing Laboratory for Food Quality and Safety, Beijing, P. R. China
| |
Collapse
|
26
|
Yang K, Zeng J, Wu H, Liu H, Ding Z, Liang W, Wu L, Lin Z, Huang W, Xu J, Dong F. Nonalcoholic Fatty Liver Disease: Changes in Gut Microbiota and Blood Lipids. J Clin Transl Hepatol 2024; 12:333-345. [PMID: 38638378 PMCID: PMC11022063 DOI: 10.14218/jcth.2023.00199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 10/10/2023] [Accepted: 11/29/2023] [Indexed: 04/20/2024] Open
Abstract
Background and Aims The global prevalence of nonalcoholic fatty liver disease (NAFLD) is 25%. This study aimed to explore differences in the gut microbial community and blood lipids between normal livers and those affected by NAFLD using 16S ribosomal deoxyribonucleic acid sequencing. Methods Gut microbiome profiles of 40 NAFLD and 20 non-NAFLD controls were analyzed. Information about four blood lipids and 13 other clinical features was collected. Patients were divided into three groups by ultrasound and FibroScan, those with a normal liver, mild FL (FL1), and moderate-to-severe FL (FL2). FL1 and FL2 patients were divided into two groups, those with either hyperlipidemia or non-hyperlipidemia based on their blood lipids. Potential keystone species within the groups were identified using univariate analysis and a specificity-occupancy plot. Significant difference in biochemical parameters ion NAFLD patients and healthy individuals were identified by detrended correspondence analysis and canonical correspondence analysis. Results Decreased gut bacterial diversity was found in patients with NAFLD. Firmicutes/Bacteroidetes decreased as NAFLD progressed. Faecalibacterium and Ruminococcus 2 were the most representative fatty-related bacteria. Glutamate pyruvic transaminase, aspartate aminotransferase, and white blood cell count were selected as the most significant biochemical indexes. Calculation of areas under the curve identified two microbiomes combined with the three biochemical indexes that identified normal liver and FL2 very well but performed poorly in diagnosing FL1. Conclusions Faecalibacterium and Ruminococcus 2, combined with glutamate pyruvic transaminase, aspartate aminotransferase, and white blood cell count distinguished NAFLD. We speculate that regulating the health of gut microbiota may release NAFLD, in addition to providing new targets for clinicians to treat NAFLD.
Collapse
Affiliation(s)
| | | | - Huaiyu Wu
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Huiyu Liu
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Zhimin Ding
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Weiyu Liang
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Linghu Wu
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Ziwei Lin
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Wenhui Huang
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Jinfeng Xu
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| | - Fajin Dong
- Department of Ultrasound, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen,Guangdong, China
| |
Collapse
|
27
|
Tan DSY, Akelew Y, Snelson M, Nguyen J, O’Sullivan KM. Unravelling the Link between the Gut Microbiome and Autoimmune Kidney Diseases: A Potential New Therapeutic Approach. Int J Mol Sci 2024; 25:4817. [PMID: 38732038 PMCID: PMC11084259 DOI: 10.3390/ijms25094817] [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: 03/22/2024] [Revised: 04/13/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024] Open
Abstract
The gut microbiota and short chain fatty acids (SCFA) have been associated with immune regulation and autoimmune diseases. Autoimmune kidney diseases arise from a loss of tolerance to antigens, often with unclear triggers. In this review, we explore the role of the gut microbiome and how disease, diet, and therapy can alter the gut microbiota consortium. Perturbations in the gut microbiota may systemically induce the translocation of microbiota-derived inflammatory molecules such as liposaccharide (LPS) and other toxins by penetrating the gut epithelial barrier. Once in the blood stream, these pro-inflammatory mediators activate immune cells, which release pro-inflammatory molecules, many of which are antigens in autoimmune diseases. The ratio of gut bacteria Bacteroidetes/Firmicutes is associated with worse outcomes in multiple autoimmune kidney diseases including lupus nephritis, MPO-ANCA vasculitis, and Goodpasture's syndrome. Therapies that enhance SCFA-producing bacteria in the gut have powerful therapeutic potential. Dietary fiber is fermented by gut bacteria which in turn release SCFAs that protect the gut barrier, as well as modulating immune responses towards a tolerogenic anti-inflammatory state. Herein, we describe where the current field of research is and the strategies to harness the gut microbiome as potential therapy.
Collapse
Affiliation(s)
- Diana Shu Yee Tan
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC 3168, Australia; (D.S.Y.T.); (Y.A.)
| | - Yibeltal Akelew
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC 3168, Australia; (D.S.Y.T.); (Y.A.)
| | - Matthew Snelson
- School of Biological Science, Monash University, Clayton, VIC 3168, Australia;
| | - Jenny Nguyen
- The Alfred Centre, School of Translational Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Kim Maree O’Sullivan
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC 3168, Australia; (D.S.Y.T.); (Y.A.)
| |
Collapse
|
28
|
Pei G, Guo L, Liang S, Chen F, Ma N, Bai J, Deng J, Li M, Qin C, Feng T, He Z. Long-Term Erythromycin Treatment Alters the Airway and Gut Microbiota: Data from Chronic Obstructive Pulmonary Disease Patients and Mice with Emphysema. Respiration 2024; 103:461-479. [PMID: 38663359 DOI: 10.1159/000538911] [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: 06/23/2023] [Accepted: 04/10/2024] [Indexed: 06/20/2024] Open
Abstract
INTRODUCTION Although long-term macrolide antibiotics could reduce the recurrent exacerbation of chronic obstructive pulmonary disease (COPD), the side effect of bacterial resistance and the impact on the microbiota remain concerning. We investigated the influence of long-term erythromycin treatment on the airway and gut microbiota in mice with emphysema and patients with COPD. METHODS We conducted 16S rRNA gene sequencing to explore the effect of erythromycin treatment on the lung and gut microbiota in mice with emphysema. Liquid chromatography-mass spectrometry was used for lung metabolomics. A randomized controlled trial was performed to investigate the effect of 48-week erythromycin treatment on the airway and gut microbiota in COPD patients. RESULTS The mouse lung and gut microbiota were disrupted after cigarette smoke exposure. Erythromycin treatment depleted harmful bacteria and altered lung metabolism. Erythromycin treatment did not alter airway or gut microbial diversity in COPD patients. It reduced the abundance of pathogens, such as Burkholderia, in the airway of COPD patients and increased levels of symbiotic bacteria, such as Prevotella and Veillonella. The proportions of Blautia, Ruminococcus, and Lachnospiraceae in the gut were increased in COPD patients after erythromycin treatment. The time to the first exacerbation following treatment was significantly longer in the erythromycin treatment group than in the COPD group. CONCLUSION Long-term erythromycin treatment reduces airway and gut microbe abundance in COPD patients but does not affect microbial diversity and restores microbiota balance in COPD patients by reducing the abundance of pathogenic bacteria.
Collapse
Affiliation(s)
- Guangsheng Pei
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Liyan Guo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Siqiao Liang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Fugang Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Nan Ma
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jing Bai
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jingmin Deng
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Meihua Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Chunhai Qin
- Department of Pulmonary and Critical Care Medicine, Guiping People's Hospital, Guiping, China
| | - Tao Feng
- Department of Pulmonary and Critical Care Medicine, Wuming Hospital of Guangxi Medical University, Nanning, China
| | - Zhiyi He
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| |
Collapse
|
29
|
Kolzhetsov N, Markelova N, Frolova M, Alikina O, Glazunova O, Safonova L, Kalashnikova I, Yudin V, Makarov V, Keskinov A, Yudin S, Troshina D, Rechkina V, Shcherbakova V, Shavkunov K, Ozoline O. Enterotype-Dependent Probiotic-Mediated Changes in the Male Rat Intestinal Microbiome In Vivo and In Vitro. Int J Mol Sci 2024; 25:4558. [PMID: 38674145 PMCID: PMC11049970 DOI: 10.3390/ijms25084558] [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: 03/04/2024] [Revised: 04/08/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Beneficial properties of lactic acid bacteria have been known long ago, but particular interest in probiotics has arisen in the last two decades due to the understanding of the important role of intestinal microflora in human life. Thus, the ability of probiotics to support healthy homeostasis of gut microbiomes has received particular attention. Here, we evaluated the effect of a probiotic consisting of Bifidobacterium longum and Lacticaseibacillus paracasei on the gut microbiome of male rats, assessed their persistence in the fecal biota, and compared probiotic-mediated changes in vitro and in vivo. As expected, microbiomes of two enterotypes were identified in the feces of 21 animals, and it turned out that even a single dose of the probiotic altered the microbial composition. Upon repeated administration, the E1 biota temporarily acquired properties of the E2 type. Being highly sensitive to the intervention of probiotic bacteria at the phylum and genus levels, the fecal microbiomes retained the identity of their enterotypes when transferred to a medium optimized for gut bacteria. For the E2 biota, even similarities between probiotic-mediated reactions in vitro and in vivo were detected. Therefore, fecal-derived microbial communities are proposed as model consortia to optimize the response of resident bacteria to various agents.
Collapse
Affiliation(s)
- Nikolay Kolzhetsov
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Natalia Markelova
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Maria Frolova
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Olga Alikina
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Olga Glazunova
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Lubov Safonova
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Irina Kalashnikova
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Vladimir Yudin
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Valentin Makarov
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Anton Keskinov
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Sergey Yudin
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Daria Troshina
- Faculty of Biotechnology, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Viktoria Rechkina
- Laboratory of Anaerobic Microorganisms, Institute of Biochemistry and Physiology of Microorganisms of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (V.R.); (V.S.)
| | - Viktoria Shcherbakova
- Laboratory of Anaerobic Microorganisms, Institute of Biochemistry and Physiology of Microorganisms of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (V.R.); (V.S.)
| | - Konstantin Shavkunov
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Olga Ozoline
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| |
Collapse
|
30
|
Hart JB, Poon RK, Ward RE, Hintze KJ, Freeman SM. Effects of Dietary Fiber on Short Chain Fatty Acid Receptor mRNA in Microglia and Serotonergic Neurons in the Mouse Brain. Neuroscience 2024; 544:88-101. [PMID: 38431042 DOI: 10.1016/j.neuroscience.2024.02.027] [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: 09/26/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024]
Abstract
Short-chain fatty acids (SCFAs) are bioactive lipids that are released into the colon as a metabolite of bacterial fermentation of dietary fibers. Beyond their function in the gastrointestinal tract, SCFAs can also have effects inthe brain, as a part of the gut-brain axis. Recent investigations into potential therapeutic interventions via the manipulation of the gut microbiome-and thus their SCFA metabolites-has been emerging as a new branch of personalized medicine,especially for mental health conditions. The current study sought to measure and localize SCFA receptors in the mouse brain. Two cell types have been implicated in the gut-brain axis: microglia and serotonergic neurons. We used fluorescentin situhybridization in brain sections from mice fed diets with different compositions of fat and fiber to quantify the mRNA levels of known gene markers of these two cell types and colocalize each with mRNA for free fatty acid receptors that bind SCFAs. We focused onmicroglia in the hippocampus and the serotonergic neurons of the dorsal raphe. We found high colocalization of SCFA receptors in both microglia and serotonergic neurons and discovered that SCFA receptor expression in the dorsal raphe is driven by fiber solubility, while SCFA receptor expression in the hippocampus is driven by fiber amount. Higher dietary fiber was associated with decreased tyrosine hydroxylase expression. Thus, our results indicate that the amount and solubility of dietary fiber can change gene expression in the brain's microglia and serotonin neurons, potentially via sensitivity to circulating levels of SCFAs produced in the gut.
Collapse
Affiliation(s)
- Janna B Hart
- Department of Biology, Utah State University, Logan, UT, USA
| | - Robert K Poon
- Department of Nutrition, Dietetics and Food Sciences, Utah State University, Logan, UT, USA
| | - Robert E Ward
- Department of Nutrition, Dietetics and Food Sciences, Utah State University, Logan, UT, USA
| | - Korry J Hintze
- Department of Nutrition, Dietetics and Food Sciences, Utah State University, Logan, UT, USA
| | - Sara M Freeman
- Department of Biology, Utah State University, Logan, UT, USA.
| |
Collapse
|
31
|
Ran R, Muñoz Briones J, Jena S, Anderson NL, Olson MR, Green LN, Brubaker DK. Detailed survey of an in vitro intestinal epithelium model by single-cell transcriptomics. iScience 2024; 27:109383. [PMID: 38523788 PMCID: PMC10959667 DOI: 10.1016/j.isci.2024.109383] [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: 07/11/2023] [Revised: 12/01/2023] [Accepted: 02/27/2024] [Indexed: 03/26/2024] Open
Abstract
The co-culture of two adult human colorectal cancer cell lines, Caco-2 and HT29, on Transwell is commonly used as an in vitro gut mimic, yet the translatability of insights from such a system to adult human physiological contexts is not fully characterized. Here, we used single-cell RNA sequencing on the co-culture to obtain a detailed survey of cell type heterogeneity in the system and conducted a holistic comparison with human physiology. We identified the intestinal stem cell-, transit amplifying-, enterocyte-, goblet cell-, and enteroendocrine-like cells in the system. In general, the co-culture was fetal intestine-like, with less variety of gene expression compared to the adult human gut. Transporters for major types of nutrients were found in the majority of the enterocytes-like cells in the system. TLR 4 was not expressed in the sample, indicating that the co-culture model is incapable of mimicking the innate immune aspect of the human epithelium.
Collapse
Affiliation(s)
- Ran Ran
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Javier Muñoz Briones
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
- Purdue Interdisciplinary Life Science Program, West Lafayette, IN, USA
| | - Smrutiti Jena
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - Nicole L. Anderson
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
| | - Matthew R. Olson
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
| | - Leopold N. Green
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - Douglas K. Brubaker
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
- The Blood, Heart, Lung, and Immunology Research Center, Case Western Reserve University, University Hospitals of Cleveland, Cleveland, OH, USA
| |
Collapse
|
32
|
Wang H, Kim R, Wang Y, Furtado KL, Sims CE, Tamayo R, Allbritton NL. In vitro co-culture of Clostridium scindens with primary human colonic epithelium protects the epithelium against Staphylococcus aureus. Front Bioeng Biotechnol 2024; 12:1382389. [PMID: 38681959 PMCID: PMC11045926 DOI: 10.3389/fbioe.2024.1382389] [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: 02/05/2024] [Accepted: 03/28/2024] [Indexed: 05/01/2024] Open
Abstract
A complex and dynamic network of interactions exists between human gastrointestinal epithelium and intestinal microbiota. Therefore, comprehending intestinal microbe-epithelial cell interactions is critical for the understanding and treatment of intestinal diseases. Primary human colonic epithelial cells derived from a healthy human donor were co-cultured with Clostridium scindens (C. scindens), a probiotic obligate anaerobe; Staphylococcus aureus (S. aureus), a facultative anaerobe and intestinal pathogen; or both bacterial species in tandem. The co-culture hanging basket platform used for these experiments possessed walls of controlled oxygen (O2) permeability to support the formation of an O2 gradient across the intestinal epithelium using cellular O2 consumption, resulting in an anaerobic luminal and aerobic basal compartment. Both the colonic epithelial cells and C. scindens remained viable over 48 h during co-culture. In contrast, co-culture with S. aureus elicited significant damage to colonic epithelial cells within 24 h. To explore the influence of the intestinal pathogen on the epithelium in the presence of the probiotic bacteria, colonic epithelial cells were inoculated sequentially with the two bacterial species. Under these conditions, C. scindens was capable of repressing the production of S. aureus enterotoxin. Surprisingly, although C. scindens converted cholic acid to secondary bile acids in the luminal medium, the growth of S. aureus was not significantly inhibited. Nevertheless, this combination of probiotic and pathogenic bacteria was found to benefit the survival of the colonic epithelial cells compared with co-culture of the epithelial cells with S. aureus alone. This platform thus provides an easy-to-use and low-cost tool to study the interaction between intestinal bacteria and colonic cells in vitro to better understand the interplay of intestinal microbiota with human colonic epithelium.
Collapse
Affiliation(s)
- Hao Wang
- Department of Bioengineering, University of Washington, Seattle, WA, United States
| | - Raehyun Kim
- Department of Bioengineering, University of Washington, Seattle, WA, United States
- Department of Biological and Chemical Engineering, Hongik University, Sejong, Republic of Korea
| | - Yuli Wang
- Department of Bioengineering, University of Washington, Seattle, WA, United States
| | - Kathleen L. Furtado
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States
| | - Christopher E. Sims
- Department of Bioengineering, University of Washington, Seattle, WA, United States
- Department of Medicine/Division of Rheumatology, University of Washington, Seattle, WA, United States
| | - Rita Tamayo
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States
| | - Nancy L. Allbritton
- Department of Bioengineering, University of Washington, Seattle, WA, United States
| |
Collapse
|
33
|
Yamamoto M, Ogura H, Kuda T, Xia Y, Nakamura A, Takahashi H, Inoue J, Takayanagi S. Detection of typical indigenous gut bacteria related to kanpyo Lagenaria siceraria var. hispida powder in murine caecum and human faecal cultures. 3 Biotech 2024; 14:118. [PMID: 38524237 PMCID: PMC10959864 DOI: 10.1007/s13205-024-03960-5] [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: 02/25/2023] [Accepted: 02/16/2024] [Indexed: 03/26/2024] Open
Abstract
Kanpyo (KP) is an edible dried product produced by peeling the fruit of the gourd Lagenaria siceraria var. hispida; it is used in the traditional Japanese cuisine. The health functionality of KP due to its rich dietary fibre is expected to include a possible combined effect of KP-responsive indigenous gut bacteria (KP-RIB). However, its effect on the gut microbiota is unclear. To determine the effects of the KP on the gut microbiota and their host, Institute of Cancer Research mice were fed a high-sucrose diet containing no fibre (NF) or 5% (w/w) KP for 14 days, and their caecal microbiota was analysed by 16S rRNA (V4) amplicon sequencing. Higher faecal frequency and weight and lower spleen weight and spleen tumour necrosis factor-α levels were observed in KP-fed mice than in NF-fed mice (p < 0.05). KP increased and decreased the abundance of short-chain fatty acid producer Lachnospiraceae and obesity-inflammation related Allobaculum species, respectively. In the case of human faecal cultures, stool samples from five healthy volunteers were inoculated and incubated at 37 °C for 24 h anaerobically; 3.2% (w/v) KP suppressed putrefactive compounds (indole, phenol, and ammonia). KP increased butyrate-producer Faecalibacterium, acetate/lactate-producer Bifidobacterium, and Lachnospira. Furthermore, KP cultures showed high antioxidant and RAW264.7 macrophage cell activation capacities. These results suggest that KP-RIB and KP intake may synergistically affect host health. However, further studies are required to clarify the synergistic effects of KP and KP-RIB.
Collapse
Affiliation(s)
- Mahiro Yamamoto
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-Ku, Tokyo, 108-8477 Japan
| | - Hikaru Ogura
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-Ku, Tokyo, 108-8477 Japan
| | - Takashi Kuda
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-Ku, Tokyo, 108-8477 Japan
| | - Yumeng Xia
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-Ku, Tokyo, 108-8477 Japan
| | - Ayaka Nakamura
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-Ku, Tokyo, 108-8477 Japan
| | - Hajime Takahashi
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-Ku, Tokyo, 108-8477 Japan
| | - Junji Inoue
- AHJIKAN Co., Ltd., 7-3-9, Shoko Center, Nishiku, Hiroshima-City, Hiroshima, 733-8677 Japan
| | - Shu Takayanagi
- AHJIKAN Co., Ltd., 7-3-9, Shoko Center, Nishiku, Hiroshima-City, Hiroshima, 733-8677 Japan
| |
Collapse
|
34
|
Nehmi‐Filho V, de Freitas JA, Franco LA, Martins RC, Turri JAO, Santamarina AB, Fonseca JVDS, Sabino EC, Moraes BC, Souza E, Murata GM, Costa SF, Alcântara PS, Otoch JP, Pessoa AFM. Modulation of the gut microbiome and Firmicutes phylum reduction by a nutraceutical blend in the obesity mouse model and overweight humans: A double-blind clinical trial. Food Sci Nutr 2024; 12:2436-2454. [PMID: 38628220 PMCID: PMC11016419 DOI: 10.1002/fsn3.3927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 12/12/2023] [Accepted: 12/17/2023] [Indexed: 04/19/2024] Open
Abstract
Overweight and obesity are closely linked to gut dysbiosis/dysmetabolism and disrupted De-Ritis ratio [aspartate aminotransferase (AST)/alanine aminotransferase (ALT) ratio], which may contribute to chronic noncommunicable diseases onset. Concurrently, extensive research explores nutraceuticals, and health-enhancing supplements, for disease prevention or treatment. Thus, sedentary overweight volunteers were double-blind randomized into two groups: Novel Nutraceutical_(S) (without silymarin) and Novel Nutraceutical (with silymarin). Experimental formulations were orally administered twice daily over 180 consecutive days. We evaluated fecal gut microbiota, based on partial 16S rRNA sequences, biochemistry and endocrine markers, steatosis biomarker (AST/ALT ratio), and anthropometric parameters. Post-supplementation, only the Novel Nutraceutical group reduced Clostridium clostridioforme (Firmicutes), Firmicutes/Bacteroidetes ratio (F/B ratio), and De-Ritis ratio, while elevating Bacteroides caccae and Bacteroides uniformis (Bacteroidetes) in Brazilian sedentary overweight volunteers after 180 days. In summary, the results presented here allow us to suggest the gut microbiota as the action mechanism of the Novel Nutraceutical promoting metabolic hepatic recovery in obesity/overweight non-drug interventions.
Collapse
Affiliation(s)
- Victor Nehmi‐Filho
- Laboratório de Investigação Médica (LIM‐26), Laboratório de Produtos e Derivados Naturais, Departamento de CirurgiaUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
| | - Jessica Alves de Freitas
- Laboratório de Investigação Médica (LIM‐26), Laboratório de Produtos e Derivados Naturais, Departamento de CirurgiaUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
| | - Lucas Augusto Franco
- Departamento de Doenças Infecciosas e Parasitárias, Laboratório de Parasitologia Médica (LIM‐46)Universidade de São Paulo Instituto de Medicina Tropical de São PauloJardim AmericaBrazil
| | - Roberta Cristina Martins
- Departamento de Doenças Infecciosas e Parasitárias, Laboratório de Parasitologia Médica (LIM‐46)Universidade de São Paulo Instituto de Medicina Tropical de São PauloJardim AmericaBrazil
| | - José Antônio Orellana Turri
- Departamento de Ginecologia e Obstetrícia, Grupo de Pesquisa em Economia da SaúdeUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
| | - Aline Boveto Santamarina
- Laboratório de Investigação Médica (LIM‐26), Laboratório de Produtos e Derivados Naturais, Departamento de CirurgiaUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
| | - Joyce Vanessa da Silva Fonseca
- Departamento de Doenças Infecciosas e Parasitárias, Laboratório de Investigação Médica em Protozoologia, Bacteriologia e Resistência Antimicrobiana (LIM‐49)Universidade de São Paulo Instituto de Medicina Tropical de São PauloJardim AmericaBrazil
| | - Ester Cerdeira Sabino
- Departamento de Doenças Infecciosas e Parasitárias, Laboratório de Parasitologia Médica (LIM‐46)Universidade de São Paulo Instituto de Medicina Tropical de São PauloJardim AmericaBrazil
| | - Bruna Carvalho Moraes
- Laboratório de Investigação Médica (LIM‐31), Laboratório Investigação Médica em Patogênese e Terapia dirigida em Onco‐Imuno‐HematologiaUniversidade de São Paulo Faculdade de Medicina, Universidade de São Paulo Hospital das ClínicasCerqueira CésarBrazil
| | | | - Gilson Masahiro Murata
- Laboratório de Investigação Médica (LIM‐29), Laboratório de Nefrologia Celular, Genética e Molecular, Departamento de Clínica MédicaUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
| | - Silvia Figueiredo Costa
- Departamento de Doenças Infecciosas e Parasitárias, Laboratório de Investigação Médica em Protozoologia, Bacteriologia e Resistência Antimicrobiana (LIM‐49)Universidade de São Paulo Instituto de Medicina Tropical de São PauloJardim AmericaBrazil
| | - Paulo Sérgio Alcântara
- Departamento de CirurgiaUniversidade de São Paulo Hospital Universitário de São PauloButantãBrazil
| | - José Pinhata Otoch
- Laboratório de Investigação Médica (LIM‐26), Laboratório de Produtos e Derivados Naturais, Departamento de CirurgiaUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
- Departamento de CirurgiaUniversidade de São Paulo Hospital Universitário de São PauloButantãBrazil
| | - Ana Flávia Marçal Pessoa
- Laboratório de Investigação Médica (LIM‐26), Laboratório de Produtos e Derivados Naturais, Departamento de CirurgiaUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
- Efeom NutritionUniversidade de São Paulo Faculdade de MedicinaPacaembuBrazil
| |
Collapse
|
35
|
Allara M, Girard JR. Towards an integrated understanding of inflammatory pathway influence on hematopoietic stem and progenitor cell differentiation. Bioessays 2024; 46:e2300142. [PMID: 38488673 DOI: 10.1002/bies.202300142] [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: 07/31/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 03/28/2024]
Abstract
Recent research highlights that inflammatory signaling pathways such as pattern recognition receptor (PRR) signaling and inflammatory cytokine signaling play an important role in both on-demand hematopoiesis as well as steady-state hematopoiesis. Knockout studies have demonstrated the necessity of several distinct pathways in these processes, but often lack information about the contribution of specific cell types to the phenotypes in question. Transplantation studies have increased the resolution to the level of specific cell types by testing the necessity of inflammatory pathways specifically in donor hematopoietic stem and progenitor cells (HSPCs) or in recipient niche cells. Here, we argue that for an integrated understanding of how these processes occur in vivo and to inform the development of therapies that modulate hematopoietic responses, we need studies that knockout inflammatory signaling receptors in a cell-specific manner and compare the phenotypes caused by knockout in individual niche cells versus HSPCs.
Collapse
Affiliation(s)
- Michael Allara
- Department of Biology, University of Massachusetts Boston, Boston, Massachusetts, USA
| | - Juliet R Girard
- Department of Biology, University of Massachusetts Boston, Boston, Massachusetts, USA
| |
Collapse
|
36
|
Zhang H, Ma L, Peng W, Wang B, Sun Y. Association between gut microbiota and onset of type 2 diabetes mellitus: a two-sample Mendelian randomization study. Front Cell Infect Microbiol 2024; 14:1327032. [PMID: 38596649 PMCID: PMC11002178 DOI: 10.3389/fcimb.2024.1327032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 03/07/2024] [Indexed: 04/11/2024] Open
Abstract
Aim Mendelian randomization (MR) analysis has been used in the exploration of the role of gut microbiota (GM) in type 2 diabetes mellitus (T2DM); however, it was limited to the genus level. This study herein aims to investigate the relationship of GM, especially at the species level, with T2DM in order to provide some evidence for further exploration of more specific GM taxa and pathway abundance in T2DM. Methods This two-sample MR study was based on the summary statistics of GM from the available genome-wide association study (GWAS) meta-analysis conducted by the MiBioGen consortium as well as the Dutch Microbiome Project (DMP), whereas the summary statistics of T2DM were obtained from the FinnGen consortium released data. Inverse variance weighted (IVW), MR-Egger, strength test (F), and weighted median methods were used to examine the causal association between GM and the onset of T2DM. Cochran's Q statistics was employed to quantify the heterogeneity of instrumental variables. Bonferroni's correction was conducted to correct the bias of multiple testing. We also performed reverse causality analysis. Results The corrected IVW estimates suggested the increased relative abundance of family Oxalobacteraceae (OR = 1.0704) and genus Oxalobacter (OR = 1.0874), respectively, were associated with higher odds of T2DM, while that of species faecis (OR = 0.9460) had a negative relationship with T2DM. The relationships of class Betaproteobacteria, family Lactobacillaceae, species finegoldii, and species longum with T2DM were also significant according to the IVW results (all P < 0.05). Conclusions GM had a potential causal association with T2DM, especially species faecis, finegoldii, and longum. Further studies are still needed to clarify certain results that are contradictory with previous findings.
Collapse
Affiliation(s)
- Hongyan Zhang
- Department of Traditional Chinese Medicine, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shaanxi Key Laboratory of Research on Traditional Chinese Medicine Physical Constitution and Diseases Prevention and Treatment, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - Li Ma
- Department of Endocrinology, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an, Shaanxi, China
| | - Wenbo Peng
- Department of Traditional Chinese Medicine, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing Wang
- Department of Traditional Chinese Medicine, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongning Sun
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| |
Collapse
|
37
|
da C. Pinaffi-Langley AC, Melia E, Hays FA. Exploring the Gut-Mitochondrial Axis: p66Shc Adapter Protein and Its Implications for Metabolic Disorders. Int J Mol Sci 2024; 25:3656. [PMID: 38612468 PMCID: PMC11011581 DOI: 10.3390/ijms25073656] [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: 02/17/2024] [Revised: 03/16/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
This review investigates the multifaceted role of the p66Shc adaptor protein and the gut microbiota in regulating mitochondrial function and oxidative stress, and their collective impact on the pathogenesis of chronic diseases. The study delves into the molecular mechanisms by which p66Shc influences cellular stress responses through Rac1 activation, Forkhead-type transcription factors inactivation, and mitochondria-mediated apoptosis, alongside modulatory effects of gut microbiota-derived metabolites and endotoxins. Employing an integrative approach, the review synthesizes findings from a broad array of studies, including molecular biology techniques and analyses of microbial metabolites' impacts on host cellular pathways. The results underscore a complex interplay between microbial metabolites, p66Shc activation, and mitochondrial dysfunction, highlighting the significance of the gut microbiome in influencing disease outcomes through oxidative stress pathways. Conclusively, the review posits that targeting the gut microbiota-p66Shc-mitochondrial axis could offer novel therapeutic strategies for mitigating the development and progression of metabolic diseases. This underscores the potential of dietary interventions and microbiota modulation in managing oxidative stress and inflammation, pivotal factors in chronic disease etiology.
Collapse
Affiliation(s)
- Ana Clara da C. Pinaffi-Langley
- Department of Nutritional Sciences, College of Allied Health, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA; (A.C.d.C.P.-L.); (E.M.)
| | - Elizabeth Melia
- Department of Nutritional Sciences, College of Allied Health, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA; (A.C.d.C.P.-L.); (E.M.)
| | - Franklin A. Hays
- Department of Nutritional Sciences, College of Allied Health, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA; (A.C.d.C.P.-L.); (E.M.)
- Stephenson Cancer Center, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA
| |
Collapse
|
38
|
Hoque MN, Faisal GM, Jerin S, Moyna Z, Islam MA, Talukder AK, Alam MS, Das ZC, Isalm T, Hossain MA, Rahman ANMA. Unveiling distinct genetic features in multidrug-resistant Escherichia coli isolated from mammary tissue and gut of mastitis induced mice. Heliyon 2024; 10:e26723. [PMID: 38434354 PMCID: PMC10904246 DOI: 10.1016/j.heliyon.2024.e26723] [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: 10/26/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024] Open
Abstract
Escherichia coli is one of the major pathogens causing mastitis in lactating mammals. We hypothesized that E. coli from the gut and mammary glands may have similar genomic characteristics in the causation of mastitis. To test this hypothesis, we used whole genome sequencing to analyze two multidrug resistant E. coli strains isolated from mammary tissue (G2M6U) and fecal sample (G6M1F) of experimentally induced mastitis mice. Both strains showed resistance to multiple (>7) antibiotics such as oxacillin, aztreonam, nalidixic acid, streptomycin, gentamicin, cefoxitin, ampicillin, tetracycline, azithromycin and nitrofurantoin. The genome of E. coli G2M6U had 59 antimicrobial resistance genes (ARGs) and 159 virulence factor genes (VFGs), while the E. coli G6M1F genome possessed 77 ARGs and 178 VFGs. Both strains were found to be genetically related to many E. coli strains causing mastitis and enteric diseases originating from different hosts and regions. The G6M1F had several unique ARGs (e.g., QnrS1, sul2, tetA, tetR, emrK, blaTEM-1/105, and aph(6)-Id, aph(3″)-Ib) conferring resistance to certain antibiotics, whereas G2M6U had a unique heat-stable enterotoxin gene (astA) and 7192 single nucleotide polymorphisms. Furthermore, there were 43 and 111 unique genes identified in G2M6U and G6M1F genomes, respectively. These results indicate distinct differences in the genomic characteristics of E. coli strain G2M6U and G6M1F that might have important implications in the pathophysiology of mammalian mastitis, and treatment strategies for mastitis in dairy animals.
Collapse
Affiliation(s)
- M. Nazmul Hoque
- Molecular Biology and Bioinformatics Laboratory, Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, 1706, Bangladesh
| | - Golam Mahbub Faisal
- Molecular Biology and Bioinformatics Laboratory, Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, 1706, Bangladesh
| | - Shobnom Jerin
- Molecular Biology and Bioinformatics Laboratory, Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, 1706, Bangladesh
| | - Zannatara Moyna
- Molecular Biology and Bioinformatics Laboratory, Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, 1706, Bangladesh
| | - Md Aminul Islam
- Advanced Molecular Lab, Department of Microbiology, President Abdul Hamid Medical College, Karimganj, 2310, Bangladesh
| | - Anup Kumar Talukder
- Molecular Biology and Bioinformatics Laboratory, Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, 1706, Bangladesh
| | | | - Ziban Chandra Das
- Molecular Biology and Bioinformatics Laboratory, Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, 1706, Bangladesh
| | - Tofazzal Isalm
- Institute of Biotechnology and Genetic Engineering (IBGE), BSMRAU, Gazipur, 1706, Bangladesh
| | - M. Anwar Hossain
- Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Abu Nasar Md Aminoor Rahman
- Molecular Biology and Bioinformatics Laboratory, Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, 1706, Bangladesh
| |
Collapse
|
39
|
Zhou E, Zhang L, He L, Xiao Y, Zhang K, Luo B. Cold exposure, gut microbiota and health implications: A narrative review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 916:170060. [PMID: 38242473 DOI: 10.1016/j.scitotenv.2024.170060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/21/2024]
Abstract
Temperature has been recognized as an important environmental factor affecting the composition and function of gut microbiota (GM). Although research on high-temperature impacts has been well studied, knowledge about the effect of cold exposure on GM remains limited. This narrative review aims to synthesize the latest scientific findings on the impact of cold exposure on mammalian GM, and its potential health implications. Chronic cold exposure could disrupt the α-diversity and the composition of GM in both experimental animals and wild-living hosts. Meanwhile, cold exposure could impact gut microbial metabolites, such as short-chain fatty acids. We also discussed plausible biological pathways and mechanisms by which cold-induced changes may impact host health, including metabolic homeostasis, fitness and thermogenesis, through the microbiota-gut-brain axis. Intriguingly, alterations in GM may provide a tool for favorably modulating the host response to the cold temperature. Finally, current challenges and future perspectives are discussed, emphasizing the need for translational research in humans. GM could be manipulated by utilizing nutritional strategies, such as probiotics and prebiotics, to deal with cold-related health issues and enhance well-being in populations living or working in cold environments.
Collapse
Affiliation(s)
- Erkai Zhou
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ling Zhang
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Li He
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ya Xiao
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Kai Zhang
- Department of Environmental Health Sciences, School of Public Health, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Bin Luo
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China.
| |
Collapse
|
40
|
Moore ML, Ford JL, Schladweiler MC, Dye JA, Jackson TW, Miller CN. Gut metabolic changes during pregnancy reveal the importance of gastrointestinal region in sample collection. Metabolomics 2024; 20:40. [PMID: 38460019 PMCID: PMC11168590 DOI: 10.1007/s11306-024-02099-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/06/2024] [Indexed: 03/11/2024]
Abstract
INTRODUCTION Studies of gastrointestinal physiology and the gut microbiome often consider the influence of intestinal region on experimental endpoints. However, this same consideration is not often applied to the gut metabolome. Understanding the contribution of gut regionality may be critically important to the rapidly changing metabolic environments, such as during pregnancy. OBJECTIVES We sought to characterize the difference in the gut metabolome in pregnant mice stratified by region-comparing the small intestine, cecum, and feces. Pre-pregnancy feces were collected to understand the influence of pregnancy on the fecal metabolome. METHODS Feces were collected from CD-1 female mice before breeding. On gestation day (GD) 18, gut contents were collected from the small intestine, cecum, and descending colon. Metabolites were analyzed with LC-MS/MS using the Biocrates MetaboINDICATOR™ MxP® Quant 500 kit. RESULTS Of the 104 small molecule metabolites meeting analysis criteria, we found that 84 (81%) were differentially abundant based on gut region. The most significant regional comparison observed was between the cecum and small intestines, with 52 (50%) differentially abundant metabolites. Pregnancy itself altered 41 (39.4%) fecal small molecule metabolites. CONCLUSIONS The regional variation observed in the gut metabolome are likely due to the microbial and physiological differences between the different parts of the intestines. Additionally, pregnancy impacts the fecal metabolome, which may be due to evolving needs of both the dam and fetus.
Collapse
Affiliation(s)
- Makala L Moore
- Oak Ridge Institute for Science and Education, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Jermaine L Ford
- Chemical Characterization and Exposure Division, Center for Computational Toxicology and Exposure, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Mette C Schladweiler
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Janice A Dye
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Thomas W Jackson
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA.
| | - Colette N Miller
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA.
| |
Collapse
|
41
|
Piccolo BD, Graham JL, Tabor-Simecka L, Randolph CE, Moody B, Robeson MS, Kang P, Fox R, Lan R, Pack L, Woford N, Yeruva L, LeRoith T, Stanhope KL, Havel PJ. Colonic epithelial hypoxia remains constant during the progression of diabetes in male UC Davis type 2 diabetes mellitus rats. BMJ Open Diabetes Res Care 2024; 12:e003813. [PMID: 38453236 PMCID: PMC10921531 DOI: 10.1136/bmjdrc-2023-003813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/12/2024] [Indexed: 03/09/2024] Open
Abstract
INTRODUCTION Colonocyte oxidation of bacterial-derived butyrate has been reported to maintain synergistic obligate anaerobe populations by reducing colonocyte oxygen levels; however, it is not known whether this process is disrupted during the progression of type 2 diabetes. Our aim was to determine whether diabetes influences colonocyte oxygen levels in the University of California Davis type 2 diabetes mellitus (UCD-T2DM) rat model. RESEARCH DESIGN AND METHODS Age-matched male UCD-T2DM rats (174±4 days) prior to the onset of diabetes (PD, n=15), within 1 month post-onset (RD, n=12), and 3 months post-onset (D3M, n=12) were included in this study. Rats were administered an intraperitoneal injection of pimonidazole (60 mg/kg body weight) 1 hour prior to euthanasia and tissue collection to estimate colonic oxygen levels. Colon tissue was fixed in 10% formalin, embedded in paraffin, and processed for immunohistochemical detection of pimonidazole. The colonic microbiome was assessed by 16S gene rRNA amplicon sequencing and content of short-chain fatty acids was measured by liquid chromatography-mass spectrometry. RESULTS HbA1c % increased linearly across the PD (5.9±0.1), RD (7.6±0.4), and D3M (11.5±0.6) groups, confirming the progression of diabetes in this cohort. D3M rats had a 2.5% increase in known facultative anaerobes, Escherichia-Shigella, and Streptococcus (false discovery rate <0.05) genera in colon contents. The intensity of pimonidazole staining of colonic epithelia did not differ across groups (p=0.37). Colon content concentrations of acetate and propionate also did not differ across UCD-T2DM groups; however, colonic butyric acid levels were higher in D3M rats relative to PD rats (p<0.01). CONCLUSIONS The advancement of diabetes in UCD-T2DM rats was associated with an increase in facultative anaerobes; however, this was not explained by changes in colonocyte oxygen levels. The mechanisms underlying shifts in gut microbe populations associated with the progression of diabetes in the UCD-T2DM rat model remain to be identified.
Collapse
Affiliation(s)
- Brian D Piccolo
- USDA-ARS Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - James L Graham
- Department of Nutrition, University of California Davis, Davis, California, USA
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, California, USA
| | | | - Christopher E Randolph
- Center for Translational Pediatric Research, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
| | - Becky Moody
- USDA-ARS Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
| | - Michael S Robeson
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Ping Kang
- USDA-ARS Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
| | - Renee Fox
- USDA-ARS Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
| | - Renny Lan
- USDA-ARS Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Lindsay Pack
- USDA-ARS Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
| | - Noah Woford
- College of Osteopathic Medicine, Lincoln Memorial University, Harrogate, Tennessee, USA
| | - Laxmi Yeruva
- USDA-ARS Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
| | - Tanya LeRoith
- Department of Biomedical Science and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Kimber L Stanhope
- Department of Nutrition, University of California Davis, Davis, California, USA
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, California, USA
| | - Peter J Havel
- Department of Nutrition, University of California Davis, Davis, California, USA
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, California, USA
| |
Collapse
|
42
|
Balasubramanian R, Schneider E, Gunnigle E, Cotter PD, Cryan JF. Fermented foods: Harnessing their potential to modulate the microbiota-gut-brain axis for mental health. Neurosci Biobehav Rev 2024; 158:105562. [PMID: 38278378 DOI: 10.1016/j.neubiorev.2024.105562] [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: 10/26/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 01/28/2024]
Abstract
Over the past two decades, whole food supplementation strategies have been leveraged to target mental health. In addition, there has been increasing attention on the ability of gut microbes, so called psychobiotics, to positively impact behaviour though the microbiota-gut-brain axis. Fermented foods offer themselves as a combined whole food microbiota modulating intervention. Indeed, they contain potentially beneficial microbes, microbial metabolites and other bioactives, which are being harnessed to target the microbiota-gut-brain axis for positive benefits. This review highlights the diverse nature of fermented foods in terms of the raw materials used and type of fermentation employed, and summarises their potential to shape composition of the gut microbiota, the gut to brain communication pathways including the immune system and, ultimately, modulate the microbiota-gut-brain axis. Throughout, we identify knowledge gaps and challenges faced in designing human studies for investigating the mental health-promoting potential of individual fermented foods or components thereof. Importantly, we also suggest solutions that can advance understanding of the therapeutic merit of fermented foods to modulate the microbiota-gut-brain axis.
Collapse
Affiliation(s)
- Ramya Balasubramanian
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61C996, County Cork, Ireland
| | | | - Eoin Gunnigle
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Paul D Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61C996, County Cork, Ireland.
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
| |
Collapse
|
43
|
Hernández-Cabanyero C, Vonaesch P. Ectopic colonization by oral bacteria as an emerging theme in health and disease. FEMS Microbiol Rev 2024; 48:fuae012. [PMID: 38650052 PMCID: PMC11065354 DOI: 10.1093/femsre/fuae012] [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: 11/10/2023] [Revised: 03/23/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024] Open
Abstract
The number of research papers published on the involvement of the oral microbiota in systemic diseases has grown exponentially over the last 4 years clearly demonstrating the growing interest in this field. Indeed, accumulating evidence highlights the central role of ectopic colonization by oral bacteria in numerous noncommunicable diseases including inflammatory bowel diseases (IBDs), undernutrition, preterm birth, neurological diseases, liver diseases, lung diseases, heart diseases, or colonic cancer. There is thus much interest in understanding the molecular mechanisms that lead to the colonization and maintenance of ectopic oral bacteria. The aim of this review is to summarize and conceptualize the current knowledge about ectopic colonization by oral bacteria, highlight wherever possible the underlying molecular mechanisms and describe its implication in health and disease. The focus lies on the newly discovered molecular mechanisms, showcasing shared pathophysiological mechanisms across different body sites and syndromes and highlighting open questions in the field regarding the pathway from oral microbiota dysbiosis to noncommunicable diseases.
Collapse
Affiliation(s)
- Carla Hernández-Cabanyero
- Department of Fundamental Microbiology, University of Lausanne, Biophore Building, UNIL-Sorge, 1015 Lausanne, Switzerland
| | - Pascale Vonaesch
- Department of Fundamental Microbiology, University of Lausanne, Biophore Building, UNIL-Sorge, 1015 Lausanne, Switzerland
| |
Collapse
|
44
|
Jandova J, Schiro G, Duca FA, Laubitz D, Wondrak GT. Exposure to chlorinated drinking water alters the murine fecal microbiota. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169933. [PMID: 38199366 PMCID: PMC10842530 DOI: 10.1016/j.scitotenv.2024.169933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/26/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
An abundant body of scientific studies and regulatory guidelines substantiates antimicrobial efficacy of freshwater chlorination ensuring drinking water safety in large populations worldwide. In contrast to the purposeful use of chlorination ensuring antimicrobial safety of drinking water, only a limited body of research has addressed the molecular impact of chlorinated drinking water exposure on the gut microbiota. Here, for the first time, we have examined the differential effects of drinking water regimens stratified by chlorination agent [inorganic (HOCl) versus chloramine (TCIC)] on the C57BL/6J murine fecal microbiota. To this end, we exposed C57BL/6J mice to chlorinated drinking water regimens followed by fecal bacterial microbiota analysis at the end of the three-week feeding period employing 16S rRNA sequencing. α-diversity was strongly reduced when comparing chlorinated versus control drinking water groups and community dissimilarities (β-diversity) were significant between groups even when comparing HOCl and TCIC. We detected significant differences in fecal bacterial composition as a function of drinking water chlorination observable at the phylum and genus levels. Differential abundance analysis of select amplicon sequence variants (ASVs) revealed changes as a function of chlorination exposure [up: Lactobacillus ASV1; Akkermansia muciniphila ASV7; Clostridium ss1 ASV10; down: Ileibacterium valens ASV5; Desulfovibrio ASV11; Lachnospiraceae UCG-006 ASV15]. Given the established complexity of murine and human gastrointestinal microbiota and their role in health and disease, the translational relevance of the chlorination-induced changes documented by us for the first time in the fecal murine microbiota remains to be explored.
Collapse
Affiliation(s)
- Jana Jandova
- Department of Pharmacology and Toxicology, R.K. Coit College of Pharmacy, University of Arizona, Tucson, USA; University of Arizona Cancer Center, University of Arizona, Tucson, USA
| | - Gabriele Schiro
- Department of Pediatrics, College of Medicine, University of Arizona, Tucson, USA
| | - Frank A Duca
- School of Animal and Comparative Biomedical Sciences, College of Agriculture and Life Sciences, University of Arizona, Tucson, USA
| | - Daniel Laubitz
- Department of Pediatrics, College of Medicine, University of Arizona, Tucson, USA
| | - Georg T Wondrak
- Department of Pharmacology and Toxicology, R.K. Coit College of Pharmacy, University of Arizona, Tucson, USA; University of Arizona Cancer Center, University of Arizona, Tucson, USA.
| |
Collapse
|
45
|
Vorländer D, Schultz G, Hoffmann K, Rasch D, Dohnt K. PETR: A novel peristaltic mixed tubular bioreactor simulating human colonic conditions. Biotechnol Bioeng 2024; 121:1118-1143. [PMID: 38151924 DOI: 10.1002/bit.28636] [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: 07/07/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 12/29/2023]
Abstract
A novel bioreactor simulating human colonic conditions for in vitro cultivation of intestinal microbiota is presented. The PEristaltic mixed Tubular bioReactor (PETR) is modular designed and periodically kneaded to simulate intestinal peristalsis. The reactor is introduced, characterized from a bioprocess engineer's perspective and discussed in its ability to mimic colon conditions. PETR provides physiological temperature and appropriate anaerobic conditions, simulates intestinal peristalsis, and has a mean residence time of 32.8 ± 0.8 h comparable to the adult human colon. The single-tube design enables a time-constant and longitudinally progressive pH gradient from 5.5 to 7.0. Using a dialysis liquid containing high molecular weight polyethylene glycol, the integrated dialysis system efficiently absorbs short chain fatty acids (up to 60%) and water (on average 850 mL d-1 ). Cultivation of a typical gut bacterium (Bifidobacterium animalis) was performed to demonstrate the applicability for controlled microbiota cultivation. PETR is unique in combining simulation of the entire colon, peristaltic mixing, dialytic water and metabolite absorption, and a progressive pH gradient in a single-tube design. PETR is a further step to precise replication of colonic conditions in vitro for reliable and reproducible microbiota research, such as studying the effect of food compounds, prebiotics or probiotics, or the development and treatment of infections with enteric pathogens, but also for further medical applications such as drug delivery studies or to study the effect of drugs on and their degradation by the microbiota.
Collapse
Affiliation(s)
- David Vorländer
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Gábor Schultz
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Kristin Hoffmann
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Detlev Rasch
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Katrin Dohnt
- Institute of Biochemical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| |
Collapse
|
46
|
Donkers JM, Wiese M, van den Broek TJ, Wierenga E, Agamennone V, Schuren F, van de Steeg E. A host-microbial metabolite interaction gut-on-a-chip model of the adult human intestine demonstrates beneficial effects upon inulin treatment of gut microbiome. MICROBIOME RESEARCH REPORTS 2024; 3:18. [PMID: 38841408 PMCID: PMC11149092 DOI: 10.20517/mrr.2023.79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/29/2024] [Accepted: 02/20/2024] [Indexed: 06/07/2024]
Abstract
Background: The gut and its microbiome have a major impact on many aspects of health and are therefore also an attractive target for drug- or food-based therapies. Here, we report on the added value of combining a microbiome screening model, the i-screen, with fresh intestinal tissue explants in a microfluidic gut-on-a-chip model, the Intestinal Explant Barrier Chip (IEBC). Methods: Adult human gut microbiome (fecal pool of 6 healthy donors) was cultured anaerobically in the i-screen platform for 24 h, without and with exposure to 4 mg/mL inulin. The i-screen cell-free culture supernatant was subsequently applied to the luminal side of adult human colon tissue explants (n = 3 donors), fixed in the IEBC, for 24 h and effects were evaluated. Results: The supplementation of the media with inulin promoted the growth of Anaerostipes, Bifidobacterium, Blautia, and Collinsella in the in vitro i-screen, and triggered an elevated production of butyrate by the microbiota. Human colon tissue exposed to inulin-treated i-screen cell-free culture supernatant or control i-screen cell-free culture supernatant with added short-chain fatty acids (SCFAs) showed improved tissue barrier integrity measured by a 28.2%-34.2% reduction in FITC-dextran 4000 (FD4) leakage and 1.3 times lower transport of antipyrine. Furthermore, the release of pro-inflammatory cytokines IL-1β, IL-6, IL-8, and TNF-α was reduced under these circumstances. Gene expression profiles confirmed these findings, but showed more profound effects for inulin-treated supernatant compared to SCFA-supplemented supernatant. Conclusion: The combination of i-screen and IEBC facilitates the study of complex intestinal processes such as host-microbial metabolite interaction and gut health.
Collapse
Affiliation(s)
- Joanne M. Donkers
- Department of Metabolic Health Research, TNO, Leiden 2333 BE, the Netherlands
| | - Maria Wiese
- Department of Microbiology & Systems Biology, TNO, Leiden 2333 BE, the Netherlands
| | - Tim J. van den Broek
- Department of Microbiology & Systems Biology, TNO, Leiden 2333 BE, the Netherlands
| | - Esmée Wierenga
- Department of Metabolic Health Research, TNO, Leiden 2333 BE, the Netherlands
| | - Valeria Agamennone
- Department of Microbiology & Systems Biology, TNO, Leiden 2333 BE, the Netherlands
| | - Frank Schuren
- Department of Microbiology & Systems Biology, TNO, Leiden 2333 BE, the Netherlands
| | - Evita van de Steeg
- Department of Metabolic Health Research, TNO, Leiden 2333 BE, the Netherlands
| |
Collapse
|
47
|
Madison AA, Bailey MT. Stressed to the Core: Inflammation and Intestinal Permeability Link Stress-Related Gut Microbiota Shifts to Mental Health Outcomes. Biol Psychiatry 2024; 95:339-347. [PMID: 38353184 PMCID: PMC10867428 DOI: 10.1016/j.biopsych.2023.10.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 10/02/2023] [Accepted: 10/22/2023] [Indexed: 02/16/2024]
Abstract
Stress levels are surging, alongside the incidence of stress-related psychiatric disorders. Perhaps a related phenomenon, especially in urban areas, the human gut contains fewer bacterial species than ever before. Although the functional implications of this absence are unclear, one consequence may be reduced stress resilience. Preclinical and clinical evidence has shown how stress exposure can alter the gut microbiota and their metabolites, affecting host physiology. Also, stress-related shifts in the gut microbiota jeopardize tight junctions of the gut barrier. In this context, bacteria and bacterial products can translocate from the gut to the bloodstream, lymph nodes, and other organs, thereby modifying systemic inflammatory responses. Heightened circulating inflammation can be an etiological factor in stress-related psychiatric disorders, including some cases of depression. In this review, we detail preclinical and clinical evidence that traces these brain-to-gut-to-brain pathways that underlie stress-related psychiatric disorders and potentially affect their responsivity to conventional psychiatric medications. We also review evidence for interventions that modulate the gut microbiota (e.g., antibiotics, probiotics, prebiotics) to reduce stress responses and psychiatric symptoms. Lastly, we discuss challenges to translation and opportunities for innovations that could impact future psychiatric clinical practice.
Collapse
Affiliation(s)
- Annelise A Madison
- Institute for Behavioral Medicine Research, Ohio State University College of Medicine, Columbus, Ohio; Department of Psychology, Ohio State University, Columbus, Ohio.
| | - Michael T Bailey
- Institute for Behavioral Medicine Research, Ohio State University College of Medicine, Columbus, Ohio; Department of Pediatrics, Ohio State University College of Medicine, Columbus, Ohio; Center for Microbial Pathogenesis and the Oral and Gastrointestinal Microbiology Research Affinity Group, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio.
| |
Collapse
|
48
|
Duff AF, Jurcisek JA, Kurbatfinski N, Chiang T, Goodman SD, Bakaletz LO, Bailey MT. Oral and middle ear delivery of otitis media standard of care antibiotics, but not biofilm-targeted antibodies, alter chinchilla nasopharyngeal and fecal microbiomes. NPJ Biofilms Microbiomes 2024; 10:10. [PMID: 38310144 PMCID: PMC10838340 DOI: 10.1038/s41522-024-00481-0] [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: 07/24/2023] [Accepted: 01/22/2024] [Indexed: 02/05/2024] Open
Abstract
Otitis media (OM) is one of the most globally pervasive pediatric conditions. Translocation of nasopharynx-resident opportunistic pathogens like nontypeable Haemophilus influenzae (NTHi) assimilates into polymicrobial middle ear biofilms, which promote OM pathogenesis and substantially diminish antibiotic efficacy. Oral or tympanostomy tube (TT)-delivered antibiotics remain the standard of care (SOC) despite consequences including secondary infection, dysbiosis, and antimicrobial resistance. Monoclonal antibodies (mAb) against two biofilm-associated structural proteins, NTHi-specific type IV pilus PilA (anti-rsPilA) and protective tip-region epitopes of NTHi integration host factor (anti-tip-chimer), were previously shown to disrupt biofilms and restore antibiotic sensitivity in vitro. However, the additional criterion for clinical relevance includes the absence of consequential microbiome alterations. Here, nine chinchilla cohorts (n = 3/cohort) without disease were established to evaluate whether TT delivery of mAbs disrupted nasopharyngeal or fecal microbiomes relative to SOC-OM antibiotics. Cohort treatments included a 7d regimen of oral amoxicillin-clavulanate (AC) or 2d regimen of TT-delivered mAb, AC, Trimethoprim-sulfamethoxazole (TS), ofloxacin, or saline. Fecal and nasopharyngeal lavage (NPL) samples were collected before and several days post treatment (DPT) for 16S sequencing. While antibiotic-treated cohorts displayed beta-diversity shifts (PERMANOVA, P < 0.05) and reductions in alpha diversity (q < 0.20) relative to baseline, mAb antibodies failed to affect diversity, indicating maintenance of a eubiotic state. Taxonomic and longitudinal analyses showed blooms in opportunistic pathogens (ANCOM) and greater magnitudes of compositional change (P < 0.05) following broad-spectrum antibiotic but not mAb treatments. Collectively, results showed broad-spectrum antibiotics induced significant fecal and nasopharyngeal microbiome disruption regardless of delivery route. Excitingly, biofilm-targeting antibodies had little effect on fecal and nasopharyngeal microbiomes.
Collapse
Affiliation(s)
- Audrey F Duff
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Joseph A Jurcisek
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Nikola Kurbatfinski
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Tendy Chiang
- Department of Otolaryngology at Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Steven D Goodman
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
- Oral and Gastrointestinal Microbiology Research Affinity Group, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Lauren O Bakaletz
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Michael T Bailey
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA.
- Department of Pediatrics, The Ohio State University, Wexner Medical Center, Columbus, OH, USA.
- Oral and Gastrointestinal Microbiology Research Affinity Group, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA.
| |
Collapse
|
49
|
Shuman JHB, Lin AS, Westland MD, Bryant KN, Piazuelo MB, Reyzer ML, Judd AM, McDonald WH, McClain MS, Schey KL, Algood HMS, Cover TL. Remodeling of the gastric environment in Helicobacter pylori-induced atrophic gastritis. mSystems 2024; 9:e0109823. [PMID: 38059647 PMCID: PMC10805037 DOI: 10.1128/msystems.01098-23] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 12/08/2023] Open
Abstract
Helicobacter pylori colonization of the human stomach is a strong risk factor for gastric cancer. To investigate H. pylori-induced gastric molecular alterations, we used a Mongolian gerbil model of gastric carcinogenesis. Histologic evaluation revealed varying levels of atrophic gastritis (a premalignant condition characterized by parietal and chief cell loss) in H. pylori-infected animals, and transcriptional profiling revealed a loss of markers for these cell types. We then assessed the spatial distribution and relative abundance of proteins in the gastric tissues using imaging mass spectrometry and liquid chromatography with tandem mass spectrometry. We detected striking differences in the protein content of corpus and antrum tissues. Four hundred ninety-two proteins were preferentially localized to the corpus in uninfected animals. The abundance of 91 of these proteins was reduced in H. pylori-infected corpus tissues exhibiting atrophic gastritis compared with infected corpus tissues exhibiting non-atrophic gastritis or uninfected corpus tissues; these included numerous proteins with metabolic functions. Fifty proteins localized to the corpus in uninfected animals were diffusely delocalized throughout the stomach in infected tissues with atrophic gastritis; these included numerous proteins with roles in protein processing. The corresponding alterations were not detected in animals infected with a H. pylori ∆cagT mutant (lacking Cag type IV secretion system activity). These results indicate that H. pylori can cause loss of proteins normally localized to the gastric corpus as well as diffuse delocalization of corpus-specific proteins, resulting in marked changes in the normal gastric molecular partitioning into distinct corpus and antrum regions.IMPORTANCEA normal stomach is organized into distinct regions known as the corpus and antrum, which have different functions, cell types, and gland architectures. Previous studies have primarily used histologic methods to differentiate these regions and detect H. pylori-induced alterations leading to stomach cancer. In this study, we investigated H. pylori-induced gastric molecular alterations in a Mongolian gerbil model of carcinogenesis. We report the detection of numerous proteins that are preferentially localized to the gastric corpus but not the antrum in a normal stomach. We show that stomachs with H. pylori-induced atrophic gastritis (a precancerous condition characterized by the loss of specialized cell types) exhibit marked changes in the abundance and localization of proteins normally localized to the gastric corpus. These results provide new insights into H. pylori-induced gastric molecular alterations that are associated with the development of stomach cancer.
Collapse
Affiliation(s)
- Jennifer H. B. Shuman
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Aung Soe Lin
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Mandy D. Westland
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Kaeli N. Bryant
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - M. Blanca Piazuelo
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Michelle L. Reyzer
- Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Audra M. Judd
- Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - W. Hayes McDonald
- Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Mark S. McClain
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Kevin L. Schey
- Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Holly M. S. Algood
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Timothy L. Cover
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| |
Collapse
|
50
|
Kim MJ, Jung DR, Lee JM, Kim I, Son H, Kim ES, Shin JH. Microbial dysbiosis index for assessing colitis status in mouse models: A systematic review and meta-analysis. iScience 2024; 27:108657. [PMID: 38205250 PMCID: PMC10777064 DOI: 10.1016/j.isci.2023.108657] [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: 07/28/2023] [Revised: 09/07/2023] [Accepted: 12/04/2023] [Indexed: 01/12/2024] Open
Abstract
Although countless gut microbiome studies on colitis using mouse models have been carried out, experiments with small sample sizes have encountered reproducibility limitations because of batch effects and statistical errors. In this study, dextran-sodium-sulfate-induced microbial dysbiosis index (DiMDI) was introduced as a reliable dysbiosis index that can be used to assess the state of microbial dysbiosis in DSS-induced mouse models. Meta-analysis of 189 datasets from 11 independent studies was performed to construct the DiMDI. Microbial dysbiosis biomarkers, Muribaculaceae, Alistipes, Turicibacter, and Bacteroides, were selected through four different feature selection methods and used to construct the DiMDI. This index demonstrated a high accuracy of 82.3% and showed strong robustness (88.9%) in the independent cohort. Therefore, DiMDI may be used as a standard for assessing microbial imbalance in DSS-induced mouse models and may contribute to the development of reliable colitis microbiome studies in mouse experiments.
Collapse
Affiliation(s)
- Min-Ji Kim
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Da-Ryung Jung
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Ji-Min Lee
- Cell & Matrix Research Institute, Kyungpook National University, Daegu 41940, Republic of Korea
| | - Ikwhan Kim
- NGS Core Facility, Kyungpook National University, Daegu 41566, Republic of Korea
| | - HyunWoo Son
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Eun Soo Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
- NGS Core Facility, Kyungpook National University, Daegu 41566, Republic of Korea
| |
Collapse
|