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Kadyan S, Park G, Wang B, Nagpal R. Dietary fiber modulates gut microbiome and metabolome in a host sex-specific manner in a murine model of aging. Front Mol Biosci 2023; 10:1182643. [PMID: 37457834 PMCID: PMC10345844 DOI: 10.3389/fmolb.2023.1182643] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/05/2023] [Indexed: 07/18/2023] Open
Abstract
Emerging evidence reveals the fundamental role of the gut microbiome in human health. Among various factors regulating our gut microbiome, diet is one of the most indispensable and prominent one. Inulin is one of the most widely-studied dietary fiber for its beneficial prebiotic effects by positively modulating the gut microbiome and microbial metabolites. Recent research underscores sexual dimorphism and sex-specific disparities in microbiome and also diet-microbiome interactions. However, whether and how the prebiotic effects of dietary fiber differ among sexes remain underexplored. To this end, we herein examine sex-specific differences in the prebiotic effects of inulin on gut microbiome and metabolome in a humanized murine model of aging i.e., aged mice carrying human fecal microbiota. The findings demonstrate that inulin exerts prebiotic effects, but in a sex-dependent manner. Overall, inulin increases the proportion of Bacteroides, Blautia, and glycine, while decreasing Eggerthella, Lactococcus, Streptococcus, trimethylamine, 3-hydroxyisobutyrate, leucine and methionine in both sexes. However, we note sex-specific effects of inulin including suppression of f_Enteroccaceae:_, Odoribacter, bile acids, malonate, thymine, valine, acetoin, and ethanol while promotion of Dubosiella, pyruvate, and glycine in males. Whereas, suppression of Faecalibaculum, Lachnoclostridium, Schaedlerella, phenylalanine and enhancement of Parasutterella, Phocaeicola, f_Lachnospiraceae;_, Barnesiella, Butyricimonas, glycine, propionate, acetate and glutamate are observed in females. Altogether, the study reveals that prebiotic mechanisms of dietary fiber vary in a sex-dependent manner, underscoring the importance of including both sexes in preclinical/clinical studies to comprehend the mechanisms and functional aspects of dietary interventions for effective extrapolation and translation in precision nutrition milieus.
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Affiliation(s)
- Saurabh Kadyan
- Department of Nutrition and Integrative Physiology, College of Health and Human Sciences, Florida State University, Tallahassee, FL, United States
| | - Gwoncheol Park
- Department of Nutrition and Integrative Physiology, College of Health and Human Sciences, Florida State University, Tallahassee, FL, United States
| | - Bo Wang
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, United States
| | - Ravinder Nagpal
- Department of Nutrition and Integrative Physiology, College of Health and Human Sciences, Florida State University, Tallahassee, FL, United States
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Gierse LC, Meene A, Skorka S, Cuypers F, Surabhi S, Ferrero-Bordera B, Kreikemeyer B, Becher D, Hammerschmidt S, Siemens N, Urich T, Riedel K. Impact of Pneumococcal and Viral Pneumonia on the Respiratory and Intestinal Tract Microbiomes of Mice. Microbiol Spectr 2023; 11:e0344722. [PMID: 36988458 PMCID: PMC10269894 DOI: 10.1128/spectrum.03447-22] [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: 09/02/2022] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
With 2.56 million deaths worldwide annually, pneumonia is one of the leading causes of death. The most frequent causative pathogens are Streptococcus pneumoniae and influenza A virus. Lately, the interaction between the pathogens, the host, and its microbiome have gained more attention. The microbiome is known to promote the immune response toward pathogens; however, our knowledge on how infections affect the microbiome is still scarce. Here, the impact of colonization and infection with S. pneumoniae and influenza A virus on the structure and function of the respiratory and gastrointestinal microbiomes of mice was investigated. Using a meta-omics approach, we identified specific differences between the bacterial and viral infection. Pneumococcal colonization had minor effects on the taxonomic composition of the respiratory microbiome, while acute infections caused decreased microbial complexity. In contrast, richness was unaffected following H1N1 infection. Within the gastrointestinal microbiome, we found exclusive changes in structure and function, depending on the pathogen. While pneumococcal colonization had no effects on taxonomic composition of the gastrointestinal microbiome, increased abundance of Akkermansiaceae and Spirochaetaceae as well as decreased amounts of Clostridiaceae were exclusively found during invasive S. pneumoniae infection. The presence of Staphylococcaceae was specific for viral pneumonia. Investigation of the intestinal microbiomés functional composition revealed reduced expression of flagellin and rubrerythrin and increased levels of ATPase during pneumococcal infection, while increased amounts of acetyl coenzyme A (acetyl-CoA) acetyltransferase and enoyl-CoA transferase were unique after H1N1 infection. In conclusion, identification of specific taxonomic and functional profiles of the respiratory and gastrointestinal microbiome allowed the discrimination between bacterial and viral pneumonia. IMPORTANCE Pneumonia is one of the leading causes of death worldwide. Here, we compared the impact of bacterial- and viral-induced pneumonia on the respiratory and gastrointestinal microbiome. Using a meta-omics approach, we identified specific profiles that allow discrimination between bacterial and viral causative.
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Affiliation(s)
| | - Alexander Meene
- Institute of Microbiology, University of Greifswald, Greifswald, Germany
| | - Sebastian Skorka
- Department of Molecular Genetics and Infection Biology, Institute for Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Fabian Cuypers
- Department of Molecular Genetics and Infection Biology, Institute for Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Surabhi Surabhi
- Department of Molecular Genetics and Infection Biology, Institute for Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | | | - Bernd Kreikemeyer
- Institute for Medical Microbiology, Virology and Hygiene, Rostock University Medical Centre, Rostock, Germany
| | - Dörte Becher
- Institute of Microbiology, University of Greifswald, Greifswald, Germany
| | - Sven Hammerschmidt
- Department of Molecular Genetics and Infection Biology, Institute for Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Nikolai Siemens
- Department of Molecular Genetics and Infection Biology, Institute for Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Tim Urich
- Institute of Microbiology, University of Greifswald, Greifswald, Germany
| | - Katharina Riedel
- Institute of Microbiology, University of Greifswald, Greifswald, Germany
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103
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Won MM, Mladenov GD, Raymond SL, Khan FA, Radulescu A. What animal model should I use to study necrotizing enterocolitis? Semin Pediatr Surg 2023; 32:151313. [PMID: 37276781 DOI: 10.1016/j.sempedsurg.2023.151313] [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: 06/07/2023]
Abstract
Unfortunately, we are all too familiar with the statement: "Necrotizing enterocolitis remains the leading cause of gastrointestinal surgical emergency in preterm neonates". It's been five decades since the first animal models of necrotizing enterocolitis (NEC) were described. There remains much investigative work to be done on identifying various aspects of NEC, ranging from the underlying mechanisms to treatment modalities. Experimental NEC is mainly focused on a rat, mouse, and piglet models. Our aim is to not only highlight the pros and cons of these three main models, but to also present some of the less-used animal models that have contributed to the body of knowledge about NEC. Choosing an appropriate model is essential to conducting effective research and answering the questions asked. As such, this paper reviews some of the variations that come with each model.
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Affiliation(s)
- Mitchell M Won
- School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Georgi D Mladenov
- Division of Pediatric Surgery, Loma Linda University Children's Hospital, Loma Linda, CA, USA
| | - Steven L Raymond
- School of Medicine, Loma Linda University, Loma Linda, CA, USA; Division of Pediatric Surgery, Loma Linda University Children's Hospital, Loma Linda, CA, USA
| | - Faraz A Khan
- School of Medicine, Loma Linda University, Loma Linda, CA, USA; Division of Pediatric Surgery, Loma Linda University Children's Hospital, Loma Linda, CA, USA
| | - Andrei Radulescu
- School of Medicine, Loma Linda University, Loma Linda, CA, USA; Division of Pediatric Surgery, Loma Linda University Children's Hospital, Loma Linda, CA, USA.
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104
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Manghi P, Blanco-Míguez A, Manara S, NabiNejad A, Cumbo F, Beghini F, Armanini F, Golzato D, Huang KD, Thomas AM, Piccinno G, Punčochář M, Zolfo M, Lesker TR, Bredon M, Planchais J, Glodt J, Valles-Colomer M, Koren O, Pasolli E, Asnicar F, Strowig T, Sokol H, Segata N. MetaPhlAn 4 profiling of unknown species-level genome bins improves the characterization of diet-associated microbiome changes in mice. Cell Rep 2023; 42:112464. [PMID: 37141097 PMCID: PMC10242440 DOI: 10.1016/j.celrep.2023.112464] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/10/2023] [Accepted: 04/17/2023] [Indexed: 05/05/2023] Open
Abstract
Mouse models are key tools for investigating host-microbiome interactions. However, shotgun metagenomics can only profile a limited fraction of the mouse gut microbiome. Here, we employ a metagenomic profiling method, MetaPhlAn 4, which exploits a large catalog of metagenome-assembled genomes (including 22,718 metagenome-assembled genomes from mice) to improve the profiling of the mouse gut microbiome. We combine 622 samples from eight public datasets and an additional cohort of 97 mouse microbiomes, and we assess the potential of MetaPhlAn 4 to better identify diet-related changes in the host microbiome using a meta-analysis approach. We find multiple, strong, and reproducible diet-related microbial biomarkers, largely increasing those identifiable by other available methods relying only on reference information. The strongest drivers of the diet-induced changes are uncharacterized and previously undetected taxa, confirming the importance of adopting metagenomic methods integrating metagenomic assemblies for comprehensive profiling.
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Affiliation(s)
- Paolo Manghi
- Department CIBIO, University of Trento, Trento, Italy
| | | | - Serena Manara
- Department CIBIO, University of Trento, Trento, Italy
| | - Amir NabiNejad
- Department CIBIO, University of Trento, Trento, Italy; IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Fabio Cumbo
- Department CIBIO, University of Trento, Trento, Italy
| | | | | | | | - Kun D Huang
- Department CIBIO, University of Trento, Trento, Italy
| | | | | | | | - Moreno Zolfo
- Department CIBIO, University of Trento, Trento, Italy
| | - Till R Lesker
- Department of Microbial Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Marius Bredon
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint Antoine, CRSA, AP-HP, Saint Antoine Hospital, 75012 Paris, France; Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Julien Planchais
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France; INRAE, UMR1319 Micalis & AgroParisTech, Jouy en Josas, France
| | - Jeremy Glodt
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France; INRAE, UMR1319 Micalis & AgroParisTech, Jouy en Josas, France
| | | | - Omry Koren
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Edoardo Pasolli
- Department of Agricultural Sciences, University of Naples, Naples, Italy
| | | | - Till Strowig
- Department of Microbial Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany; Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany
| | - Harry Sokol
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint Antoine, CRSA, AP-HP, Saint Antoine Hospital, 75012 Paris, France; Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France; INRAE, UMR1319 Micalis & AgroParisTech, Jouy en Josas, France
| | - Nicola Segata
- Department CIBIO, University of Trento, Trento, Italy; IEO, European Institute of Oncology IRCCS, Milan, Italy.
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105
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Choudhury R, Gu Y, Bolhuis JE, Kleerebezem M. Early feeding leads to molecular maturation of the gut mucosal immune system in suckling piglets. Front Immunol 2023; 14:1208891. [PMID: 37304274 PMCID: PMC10248722 DOI: 10.3389/fimmu.2023.1208891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 05/16/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction Diet-microbiota-host interactions are increasingly studied to comprehend their implications in host metabolism and overall health. Keeping in mind the importance of early life programming in shaping intestinal mucosal development, the pre-weaning period can be utilised to understand these interactions in suckling piglets. The objective of this study was to investigate the consequences of early life feeding on the time-resolved mucosal transcriptional program as well as mucosal morphology. Methods A customised fibrous feed was provided to piglets (early-fed or EF group; 7 litters) from five days of age until weaning (29 days of age) in addition to sow's milk, whereas control piglets (CON; 6 litters) suckled mother's milk only. Rectal swabs, intestinal content, and mucosal tissues (jejunum, colon) were obtained pre- and post-weaning for microbiota analysis (16S amplicon sequencing) and host transcriptome analysis (RNA sequencing). Results Early feeding accelerated both microbiota colonisation as well as host transcriptome, towards a more "mature state", with a more pronounced response in colon compared to jejunum. Early feeding elicited the largest impact on the colon transcriptome just before weaning (compared to post-weaning time-points), exemplified by the modulation of genes involved in cholesterol and energy metabolism and immune response. The transcriptional impact of early feeding persisted during the first days post-weaning and was highlighted by a stronger mucosal response to the weaning stress, via pronounced activation of barrier repair reactions, which is a combination of immune activation, epithelial migration and "wound-repair" like processes, compared to the CON piglets. Discussion Our study demonstrates the potential of early life nutrition in neonatal piglets as a means to support their intestinal development during the suckling period, and to improve adaptation during the weaning transition.
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Affiliation(s)
- Raka Choudhury
- Host-Microbe Interactomics Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Yuner Gu
- Host-Microbe Interactomics Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - J. Elizabeth Bolhuis
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Michiel Kleerebezem
- Host-Microbe Interactomics Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
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106
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Kim R. Advanced Organotypic In Vitro Model Systems for Host-Microbial Coculture. BIOCHIP JOURNAL 2023; 17:1-27. [PMID: 37363268 PMCID: PMC10201494 DOI: 10.1007/s13206-023-00103-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 06/28/2023]
Abstract
In vitro model systems have been advanced to recapitulate important physiological features of the target organ in vivo more closely than the conventional cell line cultures on a petri dish. The advanced organotypic model systems can be used as a complementary or alternative tool for various testing and screening. Numerous data from germ-free animal studies and genome sequencings of clinical samples indicate that human microbiota is an essential part of the human body, but current in vitro model systems rarely include them, which can be one of the reasons for the discrepancy in the tissue phenotypes and outcome of therapeutic intervention between in vivo and in vitro tissues. A coculture model system with appropriate microbes and host cells may have great potential to bridge the gap between the in vitro model and the in vivo counterpart. However, successfully integrating two species in one system introduces new variables to consider and poses new challenges to overcome. This review aims to provide perspectives on the important factors that should be considered for developing organotypic bacterial coculture models. Recent advances in various organotypic bacterial coculture models are highlighted. Finally, challenges and opportunities in developing organotypic microbial coculture models are also discussed.
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Affiliation(s)
- Raehyun Kim
- Department of Biological and Chemical Engineering, Hongik University, Sejong, Republic of Korea
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107
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Leleiwi I, Rodriguez-Ramos J, Shaffer M, Sabag-Daigle A, Kokkinias K, Flynn RM, Daly RA, Kop LFM, Solden LM, Ahmer BMM, Borton MA, Wrighton KC. Exposing new taxonomic variation with inflammation - a murine model-specific genome database for gut microbiome researchers. MICROBIOME 2023; 11:114. [PMID: 37210515 PMCID: PMC10199544 DOI: 10.1186/s40168-023-01529-7] [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: 11/04/2022] [Accepted: 03/21/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND The murine CBA/J mouse model widely supports immunology and enteric pathogen research. This model has illuminated Salmonella interactions with the gut microbiome since pathogen proliferation does not require disruptive pretreatment of the native microbiota, nor does it become systemic, thereby representing an analog to gastroenteritis disease progression in humans. Despite the value to broad research communities, microbiota in CBA/J mice are not represented in current murine microbiome genome catalogs. RESULTS Here we present the first microbial and viral genomic catalog of the CBA/J murine gut microbiome. Using fecal microbial communities from untreated and Salmonella-infected, highly inflamed mice, we performed genomic reconstruction to determine the impacts on gut microbiome membership and functional potential. From high depth whole community sequencing (~ 42.4 Gbps/sample), we reconstructed 2281 bacterial and 4516 viral draft genomes. Salmonella challenge significantly altered gut membership in CBA/J mice, revealing 30 genera and 98 species that were conditionally rare and unsampled in non-inflamed mice. Additionally, inflamed communities were depleted in microbial genes that modulate host anti-inflammatory pathways and enriched in genes for respiratory energy generation. Our findings suggest decreases in butyrate concentrations during Salmonella infection corresponded to reductions in the relative abundance in members of the Alistipes. Strain-level comparison of CBA/J microbial genomes to prominent murine gut microbiome databases identified newly sampled lineages in this resource, while comparisons to human gut microbiomes extended the host relevance of dominant CBA/J inflammation-resistant strains. CONCLUSIONS This CBA/J microbiome database provides the first genomic sampling of relevant, uncultivated microorganisms within the gut from this widely used laboratory model. Using this resource, we curated a functional, strain-resolved view on how Salmonella remodels intact murine gut communities, advancing pathobiome understanding beyond inferences from prior amplicon-based approaches. Salmonella-induced inflammation suppressed Alistipes and other dominant members, while rarer commensals like Lactobacillus and Enterococcus endure. The rare and novel species sampled across this inflammation gradient advance the utility of this microbiome resource to benefit the broad research needs of the CBA/J scientific community, and those using murine models for understanding the impact of inflammation on the gut microbiome more generally. Video Abstract.
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Affiliation(s)
- Ikaia Leleiwi
- Department of Cell and Molecular Biology, The Colorado State University, Fort Collins, CO USA
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
| | - Josué Rodriguez-Ramos
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
- Graduate Degree Program in Ecology, The Colorado State University, Fort Collins, CO USA
| | - Michael Shaffer
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
| | - Anice Sabag-Daigle
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH USA
| | - Katherine Kokkinias
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
- Department of Microbiology, Immunology, and Pathology, The Colorado State University, Fort Collins, CO USA
| | - Rory M. Flynn
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
| | - Rebecca A. Daly
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
| | - Linnea F. M. Kop
- Department of Microbiology, RIBES, Radbound University, Nijmegen, The Netherlands
- Department of Microbiology and Biophysics, The Ohio State University, Columbus, OH USA
| | - Lindsey M. Solden
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
| | - Brian M. M. Ahmer
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH USA
| | - Mikayla A. Borton
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
| | - Kelly C. Wrighton
- Department of Cell and Molecular Biology, The Colorado State University, Fort Collins, CO USA
- Department of Soil and Crop Sciences, The Colorado State University, Fort Collins, CO USA
- Graduate Degree Program in Ecology, The Colorado State University, Fort Collins, CO USA
- Department of Microbiology, Immunology, and Pathology, The Colorado State University, Fort Collins, CO USA
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108
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Putri SSF, Irfannuddin I, Murti K, Kesuma Y, Darmawan H, Koibuchi N. The role of gut microbiota on cognitive development in rodents: a meta-analysis. J Physiol Sci 2023; 73:10. [PMID: 37193943 DOI: 10.1186/s12576-023-00869-1] [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: 12/16/2022] [Accepted: 04/28/2023] [Indexed: 05/18/2023]
Abstract
Cognitive function includes learning, remembering and using acquired information. Emerging studies indicate the correlation between microbiota and cognitive function. Higher abundance of a specific gut microbiota, such as Bacteroidetes may improve cognitive abilities. However, another study reported different result. These results suggest that further systematic analysis is required to determine the effect of the gut microbiota abundance on cognitive development. The aim of this study is to summarize the abundance of the specific gut microbiota and cognitive development using meta-analysis. PubMed, ScienceDirect, and Clinical-Key were used as data bases to perform the literature search. Phylum Bacteroidetes, and family Lactobacillaceae were more abundant in cognitive-behavioral enhancement (CBE), whereas Firmicutes, Proteobacteria, Actinobacteria, and family Ruminococcaceae were less abundant in CBE. Differences in gut microbiota abundance are influenced by differences in stage of cognitive dysfunction, intervention, and strain of gut microbiota.
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Affiliation(s)
| | | | - Krisna Murti
- Faculty of Medicine, Universitas Sriwijaya, Palembang, 30126, Indonesia
| | - Yudianita Kesuma
- Faculty of Medicine, Universitas Sriwijaya, Palembang, 30126, Indonesia
| | - Hardi Darmawan
- Faculty of Medicine, Universitas Sriwijaya, Palembang, 30126, Indonesia
| | - Noriyuki Koibuchi
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
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Hayes JA, Lunger AW, Sharma AS, Fernez MT, Koppes AN, Koppes R, Woolston BM. Engineered bacteria titrate hydrogen sulfide and induce concentration-dependent effects on host in a gut microphysiological system. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.16.538950. [PMID: 37293009 PMCID: PMC10245736 DOI: 10.1101/2023.05.16.538950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Hydrogen sulfide (H2S) is a gaseous microbial metabolite whose role in gut diseases is debated, largely due to the difficulty in controlling its concentration and the use of non-representative model systems in previous work. Here, we engineered E. coli to titrate H2S controllably across the physiological range in a gut microphysiological system (chip) supportive of the co-culture of microbes and host cells. The chip was designed to maintain H2S gas tension and enable visualization of co-culture in real-time with confocal microscopy. Engineered strains colonized the chip and were metabolically active for two days, during which they produced H2S across a sixteen-fold range and induced changes in host gene expression and metabolism in an H2S concentration-dependent manner. These results validate a novel platform for studying the mechanisms underlying microbe-host interactions, by enabling experiments that are infeasible with current animal and in vitro models.
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Affiliation(s)
- Justin A. Hayes
- Department of Chemical Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
| | - Anna W. Lunger
- Department of Chemical Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
| | - Aayushi S. Sharma
- Department of Mechanical and Industrial Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
- Department of Bioengineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
| | - Matthew T. Fernez
- Department of Chemical Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
| | - Abigail N. Koppes
- Department of Chemical Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
- Department of Bioengineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
| | - Ryan Koppes
- Department of Chemical Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
| | - Benjamin M. Woolston
- Department of Chemical Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
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110
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Zhao M, Liu K, Zhang Y, Li Y, Zhou N, Li G. Probiotic characteristics and whole-genome sequence analysis of Pediococcus acidilactici isolated from the feces of adult beagles. Front Microbiol 2023; 14:1179953. [PMID: 37256049 PMCID: PMC10225567 DOI: 10.3389/fmicb.2023.1179953] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 04/28/2023] [Indexed: 06/01/2023] Open
Abstract
The beneficial effects of lactic acid bacteria are well known and recognized as functional foods that are health benefits for companion animals. This study, for the first time, reports the probiotic properties, safety, and whole-genome sequence of Pediococcus acidilactici GLP06 isolated from feces of beagles. In this study, candidate probiotic bacteria P. acidilactici GLP02 and GLP06 were morphologically characterized and tested for their antimicrobial capacity, tolerance to different conditions (low pH, bile salts, an artificial gastrointestinal model, and high temperature), antibiotic sensitivity, hemolytic activity, cell surface hydrophobicity, autoaggregation activity, and adhesion to Caco-2 cells. P. acidilactici GLP06 showed better probiotic potential. Therefore, P. acidilactici GLP06 was evaluated for in vivo safety in mice and whole-genome sequencing. The results showed, that the supplemented MG06 group (1010 cfu/mL), GLP06 was not only nontoxic to mice, but also promoted the development of the immune system, improved resistance to oxidative stress, and increased the diversity of intestinal microorganisms and the abundance of Lactobacillus. Whole-genome sequencing showed that P. acidilactici GLP06 was 2,014,515 bp and contained 1,976 coding sequences, accounting for 86.12% of the genome, with no drug resistance genes and eight CRISPR sequences. In conclusion, the newly isolated canine-derived P. acidilactici GLP06 had good probiotic potential, was nontoxic to mice and promoted the development of immune organs, improved the biodiversity of the intestinal flora, and had no risk of drug-resistant gene transfer, indicating that P. acidilactici GLP06 can be used as a potential probiotic for the prevention and treatment of gastrointestinal diseases in companion animals.
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Affiliation(s)
- Mengdi Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Keyuan Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Yuanyuan Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Yueyao Li
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Ning Zhou
- Shandong Chongzhiyoupin Pet Food Co., Ltd., Weifang, China
| | - Guangyu Li
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
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Benichou Haziot C, Birak KS. Therapeutic Potential of Microbiota Modulation in Alzheimer's Disease: A Review of Preclinical Studies. J Alzheimers Dis Rep 2023; 7:415-431. [PMID: 37220623 PMCID: PMC10200201 DOI: 10.3233/adr-220097] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/18/2023] [Indexed: 05/25/2023] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease, yet it currently lacks effective treatment due to its complex etiology. The pathological changes in AD have been linked to the neurotoxic immune responses following aggregation of Aβ and phosphorylated tau. The gut microbiota (GM) is increasingly studied for modulating neuroinflammation in neurodegenerative diseases and in vivo studies emerge for AD. This critical review selected 7 empirical preclinical studies from 2019 onwards assessing therapy approaches targeting GM modulating microglia neuroinflammation in AD mouse models. Results from probiotics, fecal microbiota transplantation, and drugs were compared and contrasted, including for cognition, neuroinflammation, and toxic aggregation of proteins. Studies consistently reported significant amelioration or prevention of cognitive deficits, decrease in microglial activation, and lower levels of pro-inflammatory cytokines, compared to AD mouse models. However, there were differences across papers for the brain regions affected, and changes in astrocytes were inconsistent. Aβ plaques deposition significantly decreased in all papers, apart from Byur dMar Nyer lNga Ril Bu (BdNlRB) treatment. Tau phosphorylation significantly declined in 5 studies. Effects in microbial diversity following treatment varied across studies. Findings are encouraging regarding the efficacy of study but information on the effect size is limited. Potentially, GM reverses GM derived abnormalities, decreasing neuroinflammation, which reduces AD toxic aggregations of proteins in the brain, resulting in cognitive improvements. Results support the hypothesis of AD being a multifactorial disease and the potential synergies through multi-target approaches. The use of AD mice models limits conclusions around effectiveness, as human translation is challenging.
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Affiliation(s)
- Carla Benichou Haziot
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Kulbir Singh Birak
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
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Yang X, Wu Y, Xu X, Gao W, Xie J, Li Z, Zhou X, Feng X. Impact of Repeated Infantile Exposure to Surgery and Anesthesia on Gut Microbiota and Anxiety Behaviors at Age 6-9. J Pers Med 2023; 13:jpm13050823. [PMID: 37240993 DOI: 10.3390/jpm13050823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/15/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
(1) Background: Preclinical as well as population studies have connected general anesthesia and surgery with a higher risk of abnormal cognitive development, including emotional development. Gut microbiota dysbiosis in neonatal rodents during the perioperative period has been reported, however, the relevance of this to human children who undergo multiple anesthesia for surgeries is unknown. Given the emerging role of altered gut microbes in propagating anxiety and depression, we sought to study whether repeated infantile exposures to surgery and anesthesia affect gut microbiota and anxiety behaviors later in life. (2) Methods: This is a retrospectively matched cohort study comparing 22 pediatric patients of less than 3 years of age with multiple exposures (≥3) to anesthesia for surgeries and 22 healthy controls with no history of exposure to anesthesia. The parent report version of the Spence Children's Anxiety Scale (SCAS-P) was applied to evaluate anxiety in children aged between 6 and 9 years old. Additionally, the gut microbiota profiles of the two groups were compared using 16S rRNA gene sequencing. (3) Results: In behavioral tests, the p-SCAS score of obsessive compulsive disorder and social phobia were significantly higher in children with repeated anesthesia exposure relative to the controls. There were no significant differences between the two groups with respect to panic attacks and agoraphobia, separation anxiety disorder, physical injury fears, generalized anxiety disorder, and the total SCAS-P scores. In the control group, 3 children out of 22 were found to have moderately elevated scores, but none of them had abnormally elevated scores. In the multiple-exposure group, 5 children out of 22 obtained moderately elevated scores, while 2 scored as abnormally elevated. However, no statistically significant differences were detected in the number of children with elevated and abnormally elevated scores. The data show that repeated anesthesia and surgical exposures in children led to long-lasting severe gut microbiota dysbiosis. (4) Conclusions: In this preliminary study, our findings demonstrated that early repeated exposures to anesthesia and surgical predisposes children to anxiety as well as long-term gut microbiota dysbiosis. We should confirm these findings in a larger data population size and with detailed analysis. However, the authors cannot confirm an association between the dysbiosis and anxiety.
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Affiliation(s)
- Xiaoyu Yang
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Yan Wu
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Xuanxian Xu
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Wenzong Gao
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Juntao Xie
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Zuoqing Li
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Xue Zhou
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
- Department of Anesthesiology, Critical Care and Pain Medicine, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Xia Feng
- Department of Anesthesiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
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Sha H, He X, Yan K, Li J, Li X, Xie Y, Yang Y, Deng Y, Li G, Yang J. Blocking coprophagy increases the levels of inflammation and depression in healthy mice as well as mice receiving fecal microbiota transplantation from disease model mice donors. APMIS 2023. [PMID: 37145345 DOI: 10.1111/apm.13326] [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: 04/17/2022] [Accepted: 04/18/2023] [Indexed: 05/06/2023]
Abstract
Rodents have been extensively used as animal models in microbiome studies. However, all rodents have a habitual nature called coprophagy, a phenomenon that they self-reinoculate feces into their gastrointestinal tract. Recent studies have shown that blocking coprophagy can alter rodents' diversity of gut microbiota, metabolism, neurochemistry, and cognitive behavior. However, whether rodents' coprophagy behavior affects the levels of inflammation and depression is unclear. In order to address this problem, we first blocked coprophagy in healthy mice. It displayed an increase in the levels of depression, verified by depressive-like behaviors and mood-related indicators, and inflammation, verified by the increased levels of the pro-inflammatory cytokine, in coprophagy-blocked mice. Furthermore, we transplanted fecal microbiota from chronic restraint stress (CRS) depression model mice and lipopolysaccharide (LPS) inflammation model mice to healthy recipient mice, respectively. It showed that the disease-like phenotypes in the coprophagy-blocked group were worse than those in the coprophagy-unblocked group, including severer depressive symptoms and higher levels of pro-inflammatory cytokines (IL-1β, IL-6, TNF-α and IFN-γ) in serum, prefrontal cortex (PFC), and hippocampus (HIP). These findings showed that blocking coprophagy in mice not only increased the levels of inflammation and depression in healthy mice but also aggravated inflammation and depression induced by fecal microbiota from disease donors. The discovery may provide a vital reference for future research involving FMT in rodents.
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Affiliation(s)
- Haoran Sha
- Grade 2020, School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Xiaoyi He
- Department of Anatomy, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Kai Yan
- Department of Anatomy, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Jiakang Li
- Grade 2017, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Xu Li
- Grade 2018, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yinyin Xie
- Grade 2018, School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yousheng Yang
- Grade 2018, School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yajuan Deng
- Grade 2018, School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Guoying Li
- Guangdong Medical Association, Guangzhou, Guangdong, China
| | - Junhua Yang
- Department of Anatomy, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Bioactive Drug Research, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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Zhang Y, Liu L, Wei C, Wang X, Li R, Xu X, Zhang Y, Geng G, Dang K, Ming Z, Tao X, Xu H, Yan X, Zhang J, Hu J, Li Y. Vitamin K2 supplementation improves impaired glycemic homeostasis and insulin sensitivity for type 2 diabetes through gut microbiome and fecal metabolites. BMC Med 2023; 21:174. [PMID: 37147641 PMCID: PMC10163743 DOI: 10.1186/s12916-023-02880-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/25/2023] [Indexed: 05/07/2023] Open
Abstract
BACKGROUND There is insufficient evidence for the ability of vitamin K2 to improve type 2 diabetes mellitus symptoms by regulating gut microbial composition. Herein, we aimed to demonstrate the key role of the gut microbiota in the improvement of impaired glycemic homeostasis and insulin sensitivity by vitamin K2 intervention. METHODS We first performed a 6-month RCT on 60 T2DM participants with or without MK-7 (a natural form of vitamin K2) intervention. In addition, we conducted a transplantation of the MK-7-regulated microbiota in diet-induced obesity mice for 4 weeks. 16S rRNA sequencing, fecal metabolomics, and transcriptomics in both study phases were used to clarify the potential mechanism. RESULTS After MK-7 intervention, we observed notable 13.4%, 28.3%, and 7.4% reductions in fasting serum glucose (P = 0.048), insulin (P = 0.005), and HbA1c levels (P = 0.019) in type 2 diabetes participants and significant glucose tolerance improvement in diet-induced obesity mice (P = 0.005). Moreover, increased concentrations of secondary bile acids (lithocholic and taurodeoxycholic acid) and short-chain fatty acids (acetic acid, butyric acid, and valeric acid) were found in human and mouse feces accompanied by an increased abundance of the genera that are responsible for the biosynthesis of these metabolites. Finally, we found that 4 weeks of fecal microbiota transplantation significantly improved glucose tolerance in diet-induced obesity mice by activating colon bile acid receptors, improving host immune-inflammatory responses, and increasing circulating GLP-1 concentrations. CONCLUSIONS Our gut-derived findings provide evidence for a regulatory role of vitamin K2 on glycemic homeostasis, which may further facilitate the clinical implementation of vitamin K2 intervention for diabetes management. TRIAL REGISTRATION The study was registered at https://www.chictr.org.cn (ChiCTR1800019663).
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Affiliation(s)
- Yuntao Zhang
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Lin Liu
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Chunbo Wei
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Xuanyang Wang
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Ran Li
- Department of Nutrition, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoqing Xu
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Yingfeng Zhang
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Guannan Geng
- Department of Endocrinology, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Keke Dang
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Zhu Ming
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Xinmiao Tao
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Huan Xu
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Xuemin Yan
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Jia Zhang
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Jinxia Hu
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China
| | - Ying Li
- Department of Nutrition and Food Hygiene, the National Key Discipline, School of Public Health, Harbin Medical University, Harbin, China.
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Fernandes A, Oliveira A, Soares R, Barata P. The Effects of Ionizing Radiation on Gut Microbiota: What Can Animal Models Tell Us?-A Systematic Review. Curr Issues Mol Biol 2023; 45:3877-3910. [PMID: 37232718 DOI: 10.3390/cimb45050249] [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: 03/14/2023] [Revised: 04/16/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND The gut microbiota is relatively stable; however, various factors can precipitate an imbalance that is known to be associated with various diseases. We aimed to conduct a systematic literature review of studies reporting the effects of ionizing radiation on the composition, richness, and diversity of the gut microbiota of animals. METHODS A systematic literature search was performed in PubMed, EMBASE, and Cochrane library databases. The standard methodologies expected by Cochrane were utilized. RESULTS We identified 3531 non-duplicated records and selected twenty-nine studies after considering the defined inclusion criteria. The studies were found to be heterogeneous, with significant differences in the chosen populations, methodologies, and outcomes. Overall, we found evidence of an association between ionizing radiation exposure and dysbiosis, with a reduction of microbiota diversity and richness and alterations in the taxonomic composition. Although differences in taxonomic composition varied across studies, Proteobacteria, Verrucomicrobia, Alistipes, and Akkermancia most consistently reported to be relatively more abundant after ionizing radiation exposure, whereas Bacteroidetes, Firmicutes, and Lactobacillus were relatively reduced. CONCLUSIONS This review highlights the effect of ionizing exposure on gut microbiota diversity, richness, and composition. It paves the way for further studies on human subjects regarding gastrointestinal side effects in patients submitted to treatments with ionizing radiation and the development of potential preventive, therapeutic approaches.
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Affiliation(s)
- Ana Fernandes
- Department Nuclear Medicine, Centro Hospitalar e Universitário de São João, E.P.E., 4200-319 Porto, Portugal
| | - Ana Oliveira
- Department Nuclear Medicine, Centro Hospitalar e Universitário de São João, E.P.E., 4200-319 Porto, Portugal
| | - Raquel Soares
- i3S-Institute for Research and Innovation in Health, Universidade do Porto, 4200-135 Porto, Portugal
- Department of Biomedicine, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Pedro Barata
- i3S-Institute for Research and Innovation in Health, Universidade do Porto, 4200-135 Porto, Portugal
- Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, 4200-150 Porto, Portugal
- Department of Pathology, Centro Hospitalar Universitário do Porto, 4099-001 Porto, Portugal
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Crowder SL, Jim HSL, Hogue S, Carson TL, Byrd DA. Gut microbiome and cancer implications: Potential opportunities for fermented foods. Biochim Biophys Acta Rev Cancer 2023; 1878:188897. [PMID: 37086870 DOI: 10.1016/j.bbcan.2023.188897] [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: 02/07/2023] [Revised: 04/17/2023] [Accepted: 04/17/2023] [Indexed: 04/24/2023]
Abstract
There is a critical opportunity to improve response to immunotherapies and overall cancer survivorship via dietary interventions targeted to modify the gut microbiome, and in turn, potentially enhance anti-cancer immunity. A promising dietary intervention is fermented foods, which may alter gut microbiome composition and, in turn, improve immunity. In this article, we summarize the state of the literature pertaining to the gut microbiome and response to immunotherapy and other cancer treatments, potential clinical implications of utilizing a fermented foods dietary approach to improve cancer treatment outcomes, and existing gaps in the literature regarding the implementation of fermented food interventions among individuals with cancer or with a history of cancer. This review synthesizes a compelling rationale across different disciplines to lay a roadmap for future fermented food dietary intervention research aimed at modulating the gut microbiome to reduce cancer burden.
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Affiliation(s)
- Sylvia L Crowder
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
| | - Heather S L Jim
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Stephanie Hogue
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Tiffany L Carson
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Doratha A Byrd
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
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Liao XX, Hu K, Xie XH, Wen YL, Wang R, Hu ZW, Zhou YL, Li JJ, Wu MK, Yu JX, Chen JW, Ren P, Wu XY, Zhou JJ. Banxia Xiexin decoction alleviates AS co-depression disease by regulating the gut microbiome-lipid metabolic axis. JOURNAL OF ETHNOPHARMACOLOGY 2023; 313:116468. [PMID: 37044233 DOI: 10.1016/j.jep.2023.116468] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 04/02/2023] [Accepted: 04/04/2023] [Indexed: 05/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Banxia Xiexin decoction (BXD) is a classic Chinese herbal formulation consisting of 7 herbs including Pinelliae Rhizoma, Scutellariae Radix, Zingiberis Rhizoma, Ginseng Radix, Glycyrrhizae Radix, Coptidis Rhizoma, and Jujubae Fructus, which can exert effects on lowering lipids and alleviating depressive mood disorders via affecting gastrointestinal tract. AIM OF THE STUDY The pathogenesis of atherosclerosis (AS) co-depression disease has not been well studied, and the current clinical treatment strategies are not satisfactory. As a result, it is critical to find novel methods of treatment. Based on the hypothesis that the gut microbiome may promote the development of AS co-depression disease by regulating host lipid metabolism, this study sought to evaluate the effectiveness and action mechanism of BXD in regulation of the gut microbiome via an intervention in AS co-depression mice. MATERIALS AND METHODS To determine the primary constituents of BXD, UPLC-Q/TOF-MS analysis was carried out. Sixteen C56BL/6 mice were fed normal chow as a control group; 64 ApoE-/- mice were randomized into four groups (model group and three treatment groups) and fed high-fat chow combined with daily bind stimulation for sixteen weeks to develop the AS co-depression mouse model and were administered saline or low, medium or high concentrations of BXD during the experimental modeling period. The antidepressant efficacy of BXD was examined by weighing, a sucrose preference test, an open field test, and a tail suspension experiment. The effectiveness of BXD as an anti-AS treatment was evaluated by means of biochemical indices, the HE staining method, and the Oil red O staining method. The impacts of BXD on the gut microbiome structure and brain (hippocampus and prefrontal cortex tissue) lipids in mice with the AS co-depression model were examined by 16S rDNA sequencing combined with lipidomics analysis. RESULTS The main components of BXD include baicalin, berberine, ginsenoside Rb1, and 18 other substances. BXD could improve depression-like behavioral characteristics and AS-related indices in AS co-depression mice; BXD could regulate the abundance of some flora (phylum level: reduced abundance of Proteobacteria and Deferribacteres; genus level: reduced abundance of Clostridium_IV, Helicobacter, and Pseudoflavonifractor, Acetatifactor, Oscillibacter, which were significantly different). The lipidomics analysis showed that the differential lipids between the model and gavaged high-dose BXD (BXH) groups were enriched in glycerophospholipid metabolism, and lysophosphatidylcholine (LPC(20:3)(rep)(rep)) in the hippocampus and LPC(20:4)(rep) in the prefrontal cortex both showed downregulation in BXH. The correlation analysis illustrated that the screened differential lipids were mainly linked to Deferribacteres and Actinobacteria. CONCLUSION BXD may exert an anti-AS co-depression therapeutic effect by modulating the abundance of some flora and thus intervening in peripheral lipid and brain lipid metabolism (via downregulation of LPC levels).
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Affiliation(s)
- Xing-Xing Liao
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Ke Hu
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Xin-Hua Xie
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, 341000, China
| | - You-Liang Wen
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Rui Wang
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Zi-Wei Hu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Yu-Long Zhou
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Jia-Jun Li
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Ming-Kun Wu
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Jing-Xuan Yu
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Jia-Wei Chen
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Peng Ren
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Xiao-Yun Wu
- School of Basic Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China.
| | - Jun-Jie Zhou
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, Jiangxi, 341000, China; Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, 341000, China.
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Salimi-Jazi F, Thomas AL, Rafeeqi TA, Wood LSY, Portelli K, Dunn JCY. Stem cell activation during distraction enterogenesis in the murine colon. Pediatr Surg Int 2023; 39:172. [PMID: 37031428 DOI: 10.1007/s00383-023-05455-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/03/2023] [Indexed: 04/10/2023]
Abstract
PURPOSE Short bowel syndrome (SBS) is a devastating disease. We have proposed spring-mediated distraction enterogenesis for intestinal lengthening. Colonic lengthening is a potential treatment option for SBS to enhance fluid absorption capacity. We hypothesized that intraluminal spring-mediated colonic lengthening is associated with stem cell proliferation. METHODS C57BL/6 mice underwent placement of a gelatin-encapsulated compressed or uncompressed nitinol spring in a cecal segment. Animals were given clear liquid diet until postoperative day (POD) 7, followed by regular diet until POD 14. Cecal lengths were measured at euthanasia, and tissue was formalin fixed for histological processing. For Lgr5-GFP mice, immunohistochemistry against GFP was performed to localize Lgr5+ cells within crypts. RESULTS Significant cecal lengthening with compressed springs and shortening with uncompressed springs were observed on POD 7 and 14. Mucosa of the compressed spring group was significantly thicker on POD 14. The density of Lgr5+ cells within the crypts in the compressed spring groups was higher than that in the uncompressed spring groups on both POD 7 and 14. CONCLUSION Expandable springs can be used to lengthen the colon in the mouse model. Colonic lengthening was associated with gradual mucosal thickening and correlated with an increased density of stem cells within the crypts.
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Affiliation(s)
- Fereshteh Salimi-Jazi
- Division of Pediatric Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, 453 Quarry Road, MC 5733, Palo Alto, CA, 94304, USA
| | - Anne-Laure Thomas
- Division of Pediatric Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, 453 Quarry Road, MC 5733, Palo Alto, CA, 94304, USA
| | - Talha A Rafeeqi
- Division of Pediatric Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, 453 Quarry Road, MC 5733, Palo Alto, CA, 94304, USA
| | - Lauren S Y Wood
- Division of Pediatric Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, 453 Quarry Road, MC 5733, Palo Alto, CA, 94304, USA
| | - Katherine Portelli
- Division of Pediatric Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, 453 Quarry Road, MC 5733, Palo Alto, CA, 94304, USA
| | - James C Y Dunn
- Division of Pediatric Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, 453 Quarry Road, MC 5733, Palo Alto, CA, 94304, USA.
- Department of Bioengineering, Stanford University, Stanford, CA, USA.
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Zhang M, Sasaki H, Yang T, Chen J, Li R, Yi C, Li J, He M, Yi SQ. Fecal microbiota transplantation from Suncus murinus, an obesity-resistant animal, to C57BL/6NCrSIc mice, and the antibiotic effects in the approach. Front Microbiol 2023; 14:1138983. [PMID: 37089571 PMCID: PMC10117937 DOI: 10.3389/fmicb.2023.1138983] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/13/2023] [Indexed: 04/08/2023] Open
Abstract
IntroductionImportant studies on the relationship of the intestinal microbial flora with obesity have uncovered profound changes in the composition of the gut microbiota in obese individuals. Animal studies successfully altered body phenotypes by fecal microbiota transplantation (FMT).MethodsIn this study, we analyzed the gut microbiome of Suncus murinus (S. murinus), a naturally obesity-resistant animal, and the changes of the gut flora of C57BL/6NCrSIc mice that received gut bacteria transplantation from S. murinus by 16S rRNA gene analysis method. And analyzed and discussed the possible impact of the use of antibiotics before transplantation on the outcome of transplantation.ResultsOur results showed no significant changes in body weight in the FMT group compared to the control (AB) group, but large fluctuations due to antibiotics. There was no change in blood lipid levels between groups before and after FMT. The gut microbiota of S. murinus were enriched in Firmicutes and Proteobacteria, while Bacteroidetes were not detected, and fewer OTUs were detected in the intestine gut in comparison to other mouse groups. Statistically significant differences in alpha diversity were observed between the FMT group and other groups. Furthermore, a beta diversity analysis indicated an apparent structural separation between the FMT group and other groups.ConclusionIt was suggested that the gut flora of S. murinus was not well established in the gut trace of mice through FMT, and the administration of antibiotics before transplantation was an important factor affecting the overall composition of the gut flora. Although FMT of S. murinus failed to completely colonize the intestinal tract of the mice, it still had a certain effect on the establishment of the intestinal flora of the mice. The unpredictable effects of pre-transplantation antibiotics on the results of transplantation cannot be ignored.
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Affiliation(s)
- Mingshou Zhang
- Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Hiraku Sasaki
- Department of Health Science, School of Health and Sports Science, Juntendo University, Bunkyō, Japan
| | - Ting Yang
- Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Juefei Chen
- Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Rujia Li
- Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Cheng Yi
- Suzhou Center for Disease Control and Prevention, Suzhou, China
| | - Jun Li
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Maozhang He
- Department of Microbiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Shuang-Qin Yi
- Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
- *Correspondence: Shuang-Qin Yi,
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A snapshot of gut microbiota data from murine models of Autism Spectrum Disorder: Still a blurred picture. Neurosci Biobehav Rev 2023; 147:105105. [PMID: 36804416 DOI: 10.1016/j.neubiorev.2023.105105] [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: 10/06/2022] [Revised: 01/31/2023] [Accepted: 02/16/2023] [Indexed: 02/20/2023]
Abstract
Autism Spectrum Disorder (ASD) is a heterogeneous neurodevelopmental disorder characterized by deficits in social communication and interaction and repetitive/stereotyped behaviors. In recent years, the role of microbiota-gut-brain axis in ASD pathogenesis received growing attention, appearing as an attractive therapeutic target. We provide a comprehensive overview of changes in microbiota composition in ASD murine models so far identified, and summarize the therapeutic approaches targeting the microbiota on ASD-like neurobehavioral profile. Although alterations in microbiota composition have been observed in both genetic and environmental murine models of ASD, a clear microbiota profile shared by different ASD murine models has not been identified. We documented substantial discrepancies among studies (often within the same model), likely due to several confounding factors (from sex and age of animals to housing conditions). Despite these limitations, ASD animal models (under standardized conditions) remain a useful tool to evaluate (i) the beneficial effects of manipulations of gut microbiota on behavioral abnormalities; (ii) underlying neurobiological mechanisms related to gut-brain axis; and (iii) to identify optimal time windows for therapeutic interventions.
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121
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Shoji H, Ikeda K, Miyakawa T. Behavioral phenotype, intestinal microbiome, and brain neuronal activity of male serotonin transporter knockout mice. Mol Brain 2023; 16:32. [PMID: 36991468 PMCID: PMC10061809 DOI: 10.1186/s13041-023-01020-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/16/2023] [Indexed: 03/31/2023] Open
Abstract
The serotonin transporter (5-HTT) plays a critical role in the regulation of serotonin neurotransmission. Mice genetically deficient in 5-HTT expression have been used to study the physiological functions of 5-HTT in the brain and have been proposed as a potential animal model for neuropsychiatric and neurodevelopmental disorders. Recent studies have provided evidence for a link between the gut-brain axis and mood disorders. However, the effects of 5-HTT deficiency on gut microbiota, brain function, and behavior remain to be fully characterized. Here we investigated the effects of 5-HTT deficiency on different types of behavior, the gut microbiome, and brain c-Fos expression as a marker of neuronal activation in response to the forced swim test for assessing depression-related behavior in male 5-HTT knockout mice. Behavioral analysis using a battery of 16 different tests showed that 5-HTT-/- mice exhibited markedly reduced locomotor activity, decreased pain sensitivity, reduced motor function, increased anxiety-like and depression-related behavior, altered social behavior in novel and familiar environments, normal working memory, enhanced spatial reference memory, and impaired fear memory compared to 5-HTT+/+ mice. 5-HTT+/- mice showed slightly reduced locomotor activity and impaired social behavior compared to 5-HTT+/+ mice. Analysis of 16S rRNA gene amplicons showed that 5-HTT-/- mice had altered gut microbiota abundances, such as a decrease in Allobaculum, Bifidobacterium, Clostridium sensu stricto, and Turicibacter, compared to 5-HTT+/+ mice. This study also showed that after exposure to the forced swim test, the number of c-Fos-positive cells was higher in the paraventricular thalamus and lateral hypothalamus and was lower in the prefrontal cortical regions, nucleus accumbens shell, dorsolateral septal nucleus, hippocampal regions, and ventromedial hypothalamus in 5-HTT-/- mice than in 5-HTT+/+ mice. These phenotypes of 5-HTT-/- mice partially recapitulate clinical observations in humans with major depressive disorder. The present findings indicate that 5-HTT-deficient mice serve as a good and valid animal model to study anxiety and depression with altered gut microbial composition and abnormal neuronal activity in the brain, highlighting the importance of 5-HTT in brain function and the mechanisms underlying the regulation of anxiety and depression.
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Affiliation(s)
- Hirotaka Shoji
- Division of Systems Medical Science, Center for Medical Science, Fujita Health University, Toyoake, Aichi, 470-1192, Japan
| | - Kazutaka Ikeda
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Tsuyoshi Miyakawa
- Division of Systems Medical Science, Center for Medical Science, Fujita Health University, Toyoake, Aichi, 470-1192, Japan.
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122
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Cardilli A, Hamad I, Dyczko A, Thijs S, Vangronsveld J, Müller DN, Rosshart SP, Kleinewietfeld M. Impact of High Salt-Intake on a Natural Gut Ecosystem in Wildling Mice. Nutrients 2023; 15:nu15071565. [PMID: 37049406 PMCID: PMC10096756 DOI: 10.3390/nu15071565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/28/2023] Open
Abstract
The mammalian holobiont harbors a complex and interdependent mutualistic gut bacterial community. Shifts in the composition of this bacterial consortium are known to be a key element in host health, immunity and disease. Among many others, dietary habits are impactful drivers for a potential disruption of the bacteria–host mutualistic interaction. In this context, we previously demonstrated that a high-salt diet (HSD) leads to a dysbiotic condition of murine gut microbiota, characterized by a decrease or depletion of well-known health-promoting gut bacteria. However, due to a controlled and sanitized environment, conventional laboratory mice (CLM) possess a less diverse gut microbiota compared to wild mice, leading to poor translational outcome for gut microbiome studies, since a reduced gut microbiota diversity could fail to depict the complex interdependent networks of the microbiome. Here, we evaluated the HSD effect on gut microbiota in CLM in comparison to wildling mice, which harbor a natural gut ecosystem more closely mimicking the situation in humans. Mice were treated with either control food or HSD and gut microbiota were profiled using amplicon-based methods targeting the 16S ribosomal gene. In line with previous findings, our results revealed that HSD induced significant loss of alpha diversity and extensive modulation of gut microbiota composition in CLM, characterized by the decrease in potentially beneficial bacteria from Firmicutes phylum such as the genera Lactobacillus, Roseburia, Tuzzerella, Anaerovorax and increase in Akkermansia and Parasutterella. However, HSD-treated wildling mice did not show the same changes in terms of alpha diversity and loss of Firmicutes bacteria as CLM, and more generally, wildlings exhibited only minor shifts in the gut microbiota composition upon HSD. In line with this, 16S-based functional analysis suggested only major shifts of gut microbiota ecological functions in CLM compared to wildling mice upon HSD. Our findings indicate that richer and wild-derived gut microbiota is more resistant to dietary interventions such as HSD, compared to gut microbiota of CLM, which may have important implications for future translational microbiome research.
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Ceylani T, Allahverdi H, Teker HT. Role of age-related plasma in the diversity of gut bacteria. Arch Gerontol Geriatr 2023; 111:105003. [PMID: 36965198 DOI: 10.1016/j.archger.2023.105003] [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: 02/06/2023] [Revised: 03/01/2023] [Accepted: 03/07/2023] [Indexed: 03/17/2023]
Abstract
Recent studies have demonstrated the efficacy of young blood plasma factors in reversing aging-related deformities. However, the impact of plasma exchange between young and old individuals on gut microbiota remains understudied. To investigate this, we evaluated the effects of plasma exchange between 5-week-old and 24-month-old rats on gut microbiota composition. In this study, old rats were administered 0.5 ml of young plasma, while young rats were administered 0.25 ml of old plasma daily for 30 days. Metagenome analysis was performed on the contents of the cecum after completing plasma transfer. Results showed that transferring young plasma to old rats significantly increased the alpha diversity indices (Shannon and Simpson values), while the Firmicutes to Bacteroidetes ratio decreased significantly. Conversely, transferring aged plasma to young rats led to a significant decrease in Shannon value and F/B ratio but no change in Simpson value. Plasma exchange also caused substantial changes in the top ten dominant genera and species found in the gut microbiota of young and old rats. After young blood plasma transfer, the dominant bacterial profile in the old gut microbiota shifted toward the bacterial profile found in the young control group. Notably, old plasma also altered the gut microbiota structure of young rats toward that of old rats. Our findings suggest that age-related changes in plasma play a crucial role in gut microbiota species diversity and their presence rates.
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Affiliation(s)
- Taha Ceylani
- Department of Molecular Biology and Genetics, Muş Alparslan University, Muş, Turkey; Department of Food Quality Control and Analysis, Muş Alparslan University, Muş, Turkey
| | - Hüseyin Allahverdi
- Department of Molecular Biology and Genetics, Muş Alparslan University, Muş, Turkey
| | - Hikmet Taner Teker
- Department of Medical Biology and Genetics, Ankara Medipol University, Ankara, Turkey.
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124
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van Leeuwen PT, Brul S, Zhang J, Wortel MT. Synthetic microbial communities (SynComs) of the human gut: design, assembly, and applications. FEMS Microbiol Rev 2023; 47:fuad012. [PMID: 36931888 PMCID: PMC10062696 DOI: 10.1093/femsre/fuad012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 03/19/2023] Open
Abstract
The human gut harbors native microbial communities, forming a highly complex ecosystem. Synthetic microbial communities (SynComs) of the human gut are an assembly of microorganisms isolated from human mucosa or fecal samples. In recent decades, the ever-expanding culturing capacity and affordable sequencing, together with advanced computational modeling, started a ''golden age'' for harnessing the beneficial potential of SynComs to fight gastrointestinal disorders, such as infections and chronic inflammatory bowel diseases. As simplified and completely defined microbiota, SynComs offer a promising reductionist approach to understanding the multispecies and multikingdom interactions in the microbe-host-immune axis. However, there are still many challenges to overcome before we can precisely construct SynComs of designed function and efficacy that allow the translation of scientific findings to patients' treatments. Here, we discussed the strategies used to design, assemble, and test a SynCom, and address the significant challenges, which are of microbiological, engineering, and translational nature, that stand in the way of using SynComs as live bacterial therapeutics.
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Affiliation(s)
- Pim T van Leeuwen
- Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Stanley Brul
- Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jianbo Zhang
- Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Meike T Wortel
- Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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125
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Wang Y, Uffelman CN, Bergia RE, Clark CM, Reed JB, Cross TWL, Lindemann SR, Tang M, Campbell WW. Meat Consumption and Gut Microbiota: a Scoping Review of Literature and Systematic Review of Randomized Controlled Trials in Adults. Adv Nutr 2023; 14:215-237. [PMID: 36822879 PMCID: PMC10229385 DOI: 10.1016/j.advnut.2022.10.005] [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: 02/28/2022] [Revised: 09/27/2022] [Accepted: 10/05/2022] [Indexed: 12/23/2022] Open
Abstract
Emerging research indicates the importance of gut microbiota in mediating the relationship between meat intake and human health outcomes. We aimed to assess the state of available scientific literature on meat intake and gut microbiota in humans (PROSPERO, International Prospective Register of Systematic Reviews, CRD42020135649). We first conducted a scoping review to identify observational and interventional studies on this topic. Searches were performed for English language articles using PubMed, Cochrane Library, Scopus, and CINAHL (Cumulated Index to Nursing and Allied Health Literature) databases from inception to August 2021 and using keywords related to meat (inclusive of mammalian, avian, and aquatic subtypes) and gut microbiota. Of 14,680 records, 85 eligible articles were included in the scoping review, comprising 57 observational and 28 interventional studies. One prospective observational study and 13 randomized controlled trials (RCTs) were identified in adults without diagnosed disease. We included the 13 RCTs, comprising 18 comparisons, in the systematic review to assess the effects of higher and lower intakes of total meat and meat subtypes on the gut microbiota composition. The bacterial composition was differentially affected by consuming diets with and without meat or with varied meat subtypes. For example, higher meat intake tended to decrease population sizes of genera Anerostipes and Faecalibacterium, but it increased the population size of Roseburia across studies. However, the magnitude and directionality of most microbial responses varied, with inconsistent patterns of responses across studies. The data were insufficient for comparison within or between meat subtypes. The paucity of research, especially among meat subtypes, and heterogeneity of findings underscore the need for more well-designed prospective studies and full-feeding RCTs to address the relationships between and effects of consuming total meat and meat subtypes on gut microbiota, respectively.
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Affiliation(s)
- Yu Wang
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Cassi N Uffelman
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Robert E Bergia
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Caroline M Clark
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Jason B Reed
- Libraries and School of Information Studies, Purdue University, West Lafayette, IN, USA
| | - Tzu-Wen L Cross
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | | | - Minghua Tang
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Wayne W Campbell
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA.
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126
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Abo-Shaban T, Sharna SS, Hosie S, Lee CYQ, Balasuriya GK, McKeown SJ, Franks AE, Hill-Yardin EL. Issues for patchy tissues: defining roles for gut-associated lymphoid tissue in neurodevelopment and disease. J Neural Transm (Vienna) 2023; 130:269-280. [PMID: 36309872 PMCID: PMC10033573 DOI: 10.1007/s00702-022-02561-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] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/20/2022] [Indexed: 10/31/2022]
Abstract
Individuals diagnosed with neurodevelopmental conditions such as autism spectrum disorder (ASD; autism) often experience tissue inflammation as well as gastrointestinal dysfunction, yet their underlying causes remain poorly characterised. Notably, the largest components of the body's immune system, including gut-associated lymphoid tissue (GALT), lie within the gastrointestinal tract. A major constituent of GALT in humans comprises secretory lymphoid aggregates known as Peyer's patches that sense and combat constant exposure to pathogens and infectious agents. Essential to the functions of Peyer's patches is its communication with the enteric nervous system (ENS), an intrinsic neural network that regulates gastrointestinal function. Crosstalk between these tissues contribute to the microbiota-gut-brain axis that altogether influences mood and behaviour. Increasing evidence further points to a critical role for this signalling axis in neurodevelopmental homeostasis and disease. Notably, while the neuroimmunomodulatory functions for Peyer's patches are increasingly better understood, functions for tissues of analogous function, such as caecal patches, remain less well characterised. Here, we compare the structure, function and development of Peyer's patches, as well as caecal and appendix patches in humans and model organisms including mice to highlight the roles for these essential tissues in health and disease. We propose that perturbations to GALT function may underlie inflammatory disorders and gastrointestinal dysfunction in neurodevelopmental conditions such as autism.
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Affiliation(s)
- T Abo-Shaban
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - S S Sharna
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
- Department of Pathology, Texas Children's Microbiome Center, Texas Children's Hospital, Houston, TX, USA
| | - S Hosie
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - C Y Q Lee
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - G K Balasuriya
- Department of Physiology and Cell Biology, Kobe University School of Medicine, 7-5-1 Kusunoki-Cho, Chuo, Kobe, 650-0017, Japan
| | - S J McKeown
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia
| | - A E Franks
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, VIC, Australia
| | - E L Hill-Yardin
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia.
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127
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Dong F, Zhao C, He X, Dong Y, Liu H, Yao P, Xu W. Safety evaluation of Balanced Health Care Dan-A medicinal formulation containing traditional edible ingredients in lung tumor-loaded mice. Food Sci Nutr 2023; 11:1544-1552. [PMID: 36911849 PMCID: PMC10002941 DOI: 10.1002/fsn3.3195] [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: 07/16/2022] [Revised: 11/11/2022] [Accepted: 12/03/2022] [Indexed: 12/24/2022] Open
Abstract
Chinese formulation-based medicinal food has been widely used in clinical trials, but its safety is not well studied. In this research, the edible safety assessment of Balanced Health Care Dan-a formulation containing traditional edible ingredients that were initially formulated to reduce side effects for lung cancer patients-was studied in mice based on biochemical and gut microbial analyses. The experimental mice were subcutaneously loaded with lung tumor A549 cells and then administrated with Balanced Health Care Dan (200 mg/kg or 400 mg/kg b.w. in gavage feeding) for 4 weeks. The body weight, blood parameters, and pathogenic phenotype in tissues were examined. No toxicological symptom was found in experimental mice compared with the normal control. Comprehensive analyses were also conducted to evaluate intestinal microbiota that are associated with many diseases. Balanced Health Care Dan modified the gut microbiota structure in a positive way. In conclusion, the Chinese formulation-based medicinal food has shown no toxicological effect in mice within 4 weeks of feeding experiment and has the potential to be used in clinical trials.
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Affiliation(s)
- Feng Dong
- Institute of Acupuncture and MoxibustionChina Academy of Chinese Medical SciencesBeijingChina
| | - Changhui Zhao
- College of Food Science and EngineeringJilin UniversityChangchunChina
| | - Xiaoyun He
- College of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | | | | | - Peng Yao
- College of Food Science and EngineeringJilin UniversityChangchunChina
| | - Wentao Xu
- College of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijingChina
- Key Laboratory of Precision Nutrition and Food QualityDepartment of Nutrition and HealthChina Agricultural UniversityBeijingChina
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128
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From Gut to Blood: Spatial and Temporal Pathobiome Dynamics during Acute Abdominal Murine Sepsis. Microorganisms 2023; 11:microorganisms11030627. [PMID: 36985201 PMCID: PMC10054525 DOI: 10.3390/microorganisms11030627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/15/2023] [Accepted: 02/24/2023] [Indexed: 03/05/2023] Open
Abstract
Abdominal sepsis triggers the transition of microorganisms from the gut to the peritoneum and bloodstream. Unfortunately, there is a limitation of methods and biomarkers to reliably study the emergence of pathobiomes and to monitor their respective dynamics. Three-month-old CD-1 female mice underwent cecal ligation and puncture (CLP) to induce abdominal sepsis. Serial and terminal endpoint specimens were collected for fecal, peritoneal lavage, and blood samples within 72 h. Microbial species compositions were determined by NGS of (cell-free) DNA and confirmed by microbiological cultivation. As a result, CLP induced rapid and early changes of gut microbial communities, with a transition of pathogenic species into the peritoneum and blood detected at 24 h post-CLP. NGS was able to identify pathogenic species in a time course-dependent manner in individual mice using cfDNA from as few as 30 microliters of blood. Absolute levels of cfDNA from pathogens changed rapidly during acute sepsis, demonstrating its short half-life. Pathogenic species and genera in CLP mice significantly overlapped with pathobiomes from septic patients. The study demonstrated that pathobiomes serve as reservoirs following CLP for the transition of pathogens into the bloodstream. Due to its short half-life, cfDNA can serve as a precise biomarker for pathogen identification in blood.
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129
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Nguyen NM, Cho J, Lee C. Gut Microbiota and Alzheimer's Disease: How to Study and Apply Their Relationship. Int J Mol Sci 2023; 24:ijms24044047. [PMID: 36835459 PMCID: PMC9958597 DOI: 10.3390/ijms24044047] [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: 01/09/2023] [Revised: 02/06/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023] Open
Abstract
Gut microbiota (GM), the microorganisms in the gastrointestinal tract, contribute to the regulation of brain homeostasis through bidirectional communication between the gut and the brain. GM disturbance has been discovered to be related to various neurological disorders, including Alzheimer's disease (AD). Recently, the microbiota-gut-brain axis (MGBA) has emerged as an enticing subject not only to understand AD pathology but also to provide novel therapeutic strategies for AD. In this review, the general concept of the MGBA and its impacts on the development and progression of AD are described. Then, diverse experimental approaches for studying the roles of GM in AD pathogenesis are presented. Finally, the MGBA-based therapeutic strategies for AD are discussed. This review provides concise guidance for those who wish to obtain a conceptual and methodological understanding of the GM and AD relationship with an emphasis on its practical application.
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130
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Tannock GW. Gnotobiotic experimentation helps define symbiogenesis in vertebrate evolution. NEW ZEALAND JOURNAL OF ZOOLOGY 2023. [DOI: 10.1080/03014223.2023.2169943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Gerald W. Tannock
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
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131
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Foote MS, Du K, Mousavi S, Bereswill S, Heimesaat MM. Therapeutic Oral Application of Carvacrol Alleviates Acute Campylobacteriosis in Mice Harboring a Human Gut Microbiota. Biomolecules 2023; 13:320. [PMID: 36830689 PMCID: PMC9953218 DOI: 10.3390/biom13020320] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Human Campylobacter jejuni infections are rising globally. Since antibiotics are usually not indicated in acute campylobacteriosis, antibiotic-independent intervention measures are desirable. The phenolic compound carvacrol constitutes a promising candidate molecule given its antimicrobial and immune-modulatory features. To test the disease-alleviating effects of oral carvacrol treatment in acute murine campylobacteriosis, IL-10-/- mice harboring a human gut microbiota were perorally infected with C. jejuni and treated with carvacrol via the drinking water. Whereas C. jejuni stably established in the gastrointestinal tract of mice from the placebo cohort, carvacrol treatment resulted in lower pathogen loads in the small intestines on day 6 post infection. When compared to placebo, carvacrol ameliorated pathogen-induced symptoms including bloody diarrhea that was accompanied by less distinct histopathological and apoptotic cell responses in the colon. Furthermore, innate and adaptive immune cell numbers were lower in the colon of carvacrol- versus placebo-treated mice. Notably, carvacrol application dampened C. jejuni-induced secretion of pro-inflammatory mediators in intestinal, extra-intestinal and systemic organs to naive levels and furthermore, resulted in distinct shifts in the fecal microbiota composition. In conclusion, our preclinical placebo-controlled intervention study provides evidence that therapeutic carvacrol application constitutes a promising option to alleviate campylobacteriosis in the infected vertebrate host.
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132
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Intestinal organoids as advanced modeling platforms to study the role of host-microbiome interaction in homeostasis and disease. BMB Rep 2023; 56:15-23. [PMID: 36379514 PMCID: PMC9887104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Indexed: 01/28/2023] Open
Abstract
After birth, animals are colonized by a diverse community of microorganisms. The digestive tract is known to contain the largest number of microbiome in the body. With emergence of the gut-brain axis, the importance of gut microbiome and its metabolites in host health has been extensively studied in recent years. The establishment of organoid culture systems has contributed to studying intestinal pathophysiology by replacing current limited models. Owing to their architectural and functional complexity similar to a real organ, co-culture of intestinal organoids with gut microbiome can provide mechanistic insights into the detrimental role of pathobiont and the homeostatic function of commensal symbiont. Here organoid-based bacterial co-culture techniques for modeling host-microbe interactions are reviewed. This review also summarizes representative studies that explore impact of enteric microorganisms on intestinal organoids to provide a better understanding of host-microbe interaction in the context of homeostasis and disease. [BMB Reports 2023; 56(1): 15-23].
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133
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Paden H, Kurbatfinski N, Poelstra JW, Ormiston K, Orchard T, Ilic S. Dietary Impacts on Changes in Diversity and Abundance of the Murine Microbiome during Progression and Treatment of Cancer. Nutrients 2023; 15:724. [PMID: 36771430 PMCID: PMC9920799 DOI: 10.3390/nu15030724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 01/14/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
The intestinal microbial population is recognized for its impact on cancer treatment outcomes. Little research has reported microbiome changes during cancer progression or the interplay of disease progression, dietary sugar/fat intake, and the microbiome through surgery and chemotherapy. In this study, the murine gut microbiome was used as a model system, and changes in microbiome diversity, richness, and evenness over the progression of the cancer and treatment were analyzed. Mice were categorized into four diet cohorts, combinations of either high or low sucrose and high or low omega-3 fatty acids, and two treatment cohorts, saline vehicle or chemotherapy, for a total of eight groups. Fecal samples were collected at specific timepoints to assess changes due to diet implementation, onset of cancer, lumpectomy, and chemotherapy. Akkermansia muciniphila abundance was very high in some samples and negatively correlated with overall Amplicon Sequence Variant (ASV) richness (r(64) = -0.55, p = 3 × 10-8). Throughout the disease progression, ASV richness significantly decreased and was impacted by diet and treatment. Alpha-diversity and differential microbial abundance were significantly affected by disease progression, diet, treatment, and their interactions. These findings help establish a baseline for understanding how cancer progression, dietary macronutrients, and specific treatments impact the murine microbiome, which may influence outcomes.
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Affiliation(s)
- Holly Paden
- Department of Human Sciences, Ohio State University, Columbus, OH 43210, USA
| | - Nikola Kurbatfinski
- Department of Human Sciences, Ohio State University, Columbus, OH 43210, USA
| | - Jelmer W. Poelstra
- Molecular and Cellular Imaging Center (MCIC), Ohio State University, Wooster, OH 44691, USA
| | - Kate Ormiston
- Department of Human Sciences, Ohio State University, Columbus, OH 43210, USA
| | - Tonya Orchard
- Department of Human Sciences, Ohio State University, Columbus, OH 43210, USA
| | - Sanja Ilic
- Department of Human Sciences, Ohio State University, Columbus, OH 43210, USA
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134
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Gillard J, Leclercq IA. Biological tuners to reshape the bile acid pool for therapeutic purposes in non-alcoholic fatty liver disease. Clin Sci (Lond) 2023; 137:65-85. [PMID: 36601783 PMCID: PMC9816373 DOI: 10.1042/cs20220697] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/08/2022] [Accepted: 12/16/2022] [Indexed: 01/06/2023]
Abstract
Bile acids synthesized within the hepatocytes are transformed by gut microorganisms and reabsorbed into the portal circulation. During their enterohepatic cycling, bile acids act as signaling molecules by interacting with receptors to regulate pathways involved in many physiological processes. The bile acid pool, composed of a variety of bile acid species, has been shown to be altered in diseases, hence contributing to disease pathogenesis. Thus, understanding the changes in bile acid pool size and composition in pathological processes will help to elaborate effective pharmacological treatments. Five crucial steps along the enterohepatic cycle shape the bile acid pool size and composition, offering five possible targets for therapeutic intervention. In this review, we provide an insight on the strategies to modulate the bile acid pool, and then we discuss the potential benefits in non-alcoholic fatty liver disease.
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Affiliation(s)
- Justine Gillard
- Laboratory of Hepato‐Gastroenterology, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Isabelle A. Leclercq
- Laboratory of Hepato‐Gastroenterology, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
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135
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Brooks CN, Wight ME, Azeez OE, Bleich RM, Zwetsloot KA. Growing old together: What we know about the influence of diet and exercise on the aging host's gut microbiome. Front Sports Act Living 2023; 5:1168731. [PMID: 37139301 PMCID: PMC10149677 DOI: 10.3389/fspor.2023.1168731] [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: 02/18/2023] [Accepted: 03/28/2023] [Indexed: 05/05/2023] Open
Abstract
The immune system is critical in defending against infection from pathogenic microorganisms. Individuals with weakened immune systems, such as the elderly, are more susceptible to infections and developing autoimmune and inflammatory diseases. The gut microbiome contains a plethora of bacteria and other microorganisms, which collectively plays a significant role in immune function and homeostasis. Gut microbiota are considered to be highly influential on host health and immune function. Therefore, dysbiosis of the microbiota could be a major contributor to the elevated incidence of multiple age-related pathologies. While there seems to be a general consensus that the composition of gut microbiota changes with age, very little is known about how diet and exercise might influence the aging microbiome. Here, we examine the current state of the literature regarding alterations to the gut microbiome as hosts age, drawing particular attention to the knowledge gaps in addressing how diet and exercise influence the aging microbiome. Further, we will demonstrate the need for more controlled studies to investigate the roles that diet and exercise play driving the composition, diversity, and function of the microbiome in an aging population.
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Affiliation(s)
- Chequita N. Brooks
- Department of Biology, Appalachian State University, Boone, NC, United States
| | - Madeline E. Wight
- Department of Biology, Appalachian State University, Boone, NC, United States
| | - Oluwatobi E. Azeez
- Department of Biology, Appalachian State University, Boone, NC, United States
| | - Rachel M. Bleich
- Department of Biology, Appalachian State University, Boone, NC, United States
- Correspondence: Kevin A. Zwetsloot Rachel M. Bleich
| | - Kevin A. Zwetsloot
- Department of Biology, Appalachian State University, Boone, NC, United States
- Department of Public Health and Exercise Science, Appalachian State University, Boone, NC, United States
- Correspondence: Kevin A. Zwetsloot Rachel M. Bleich
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136
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Herzog MKM, Cazzaniga M, Peters A, Shayya N, Beldi L, Hapfelmeier S, Heimesaat MM, Bereswill S, Frankel G, Gahan CG, Hardt WD. Mouse models for bacterial enteropathogen infections: insights into the role of colonization resistance. Gut Microbes 2023; 15:2172667. [PMID: 36794831 PMCID: PMC9980611 DOI: 10.1080/19490976.2023.2172667] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 01/18/2023] [Indexed: 02/17/2023] Open
Abstract
Globally, enteropathogenic bacteria are a major cause of morbidity and mortality.1-3 Campylobacter, Salmonella, Shiga-toxin-producing Escherichia coli, and Listeria are among the top five most commonly reported zoonotic pathogens in the European Union.4 However, not all individuals naturally exposed to enteropathogens go on to develop disease. This protection is attributable to colonization resistance (CR) conferred by the gut microbiota, as well as an array of physical, chemical, and immunological barriers that limit infection. Despite their importance for human health, a detailed understanding of gastrointestinal barriers to infection is lacking, and further research is required to investigate the mechanisms that underpin inter-individual differences in resistance to gastrointestinal infection. Here, we discuss the current mouse models available to study infections by non-typhoidal Salmonella strains, Citrobacter rodentium (as a model for enteropathogenic and enterohemorrhagic E. coli), Listeria monocytogenes, and Campylobacter jejuni. Clostridioides difficile is included as another important cause of enteric disease in which resistance is dependent upon CR. We outline which parameters of human infection are recapitulated in these mouse models, including the impact of CR, disease pathology, disease progression, and mucosal immune response. This will showcase common virulence strategies, highlight mechanistic differences, and help researchers from microbiology, infectiology, microbiome research, and mucosal immunology to select the optimal mouse model.
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Affiliation(s)
- Mathias K.-M. Herzog
- Department of Biology, Institute of Microbiology, ETH Zurich, Zurich, Switzerland
| | - Monica Cazzaniga
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Audrey Peters
- Department of Life Sciences, MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London, UK
| | - Nizar Shayya
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - University Medicine Berlin, Berlin, Germany
| | - Luca Beldi
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | | | - Markus M. Heimesaat
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - University Medicine Berlin, Berlin, Germany
| | - Stefan Bereswill
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - University Medicine Berlin, Berlin, Germany
| | - Gad Frankel
- Department of Life Sciences, MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London, UK
| | - Cormac G.M. Gahan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Wolf-Dietrich Hardt
- Department of Biology, Institute of Microbiology, ETH Zurich, Zurich, Switzerland
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137
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Chen B, Bai Y, Tong F, Yan J, Zhang R, Zhong Y, Tan H, Ma X. Glycoursodeoxycholic acid regulates bile acids level and alters gut microbiota and glycolipid metabolism to attenuate diabetes. Gut Microbes 2023; 15:2192155. [PMID: 36967529 PMCID: PMC10054359 DOI: 10.1080/19490976.2023.2192155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Accumulating evidence suggests that the bile acid regulates type 2 diabetes mellitus (T2DM) through gut microbiota-host interactions. However, the mechanisms underlying such interactions have been unclear. Here, we found that glycoursodeoxycholic acid (GUDCA) positively regulates gut microbiota by altering bile acid metabolism. GUDCA in mice resulted in higher taurolithocholic acid (TLCA) level and Bacteroides vulgatus abundance. Together, these changes resulted in the activation of the adipose G-protein-coupled bile acid receptor, GPBAR1 (TGR5) and upregulated expression of uncoupling protein UCP-1, resulting in elevation of white adipose tissue thermogenesis. The anti-T2DM effects of GUDCA are linked with the regulation of the bile acid and gut microbiota composition. This study suggests that altering bile acid metabolism, modifying the gut microbiota may be of value for the treatment of T2DM.
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Affiliation(s)
- Bingting Chen
- College of Pharmacy, Xinjiang Medical University, Urumqi, China
- Nanshan Hospital, The First Affiliated Hospital of Guangzhou University of Chinese Medicine (Shenzhen Nanshan Hospital of Chinese Medicine), Shenzhen, China
| | - Yu Bai
- The Fourth Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Fenglian Tong
- College of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Junlin Yan
- College of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Rui Zhang
- College of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Yewei Zhong
- College of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Huiwen Tan
- College of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Xiaoli Ma
- College of Pharmacy, Xinjiang Medical University, Urumqi, China
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138
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Chapman JA, Stewart CJ. Methodological challenges in neonatal microbiome research. Gut Microbes 2023; 15:2183687. [PMID: 36843005 PMCID: PMC9980642 DOI: 10.1080/19490976.2023.2183687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/16/2023] [Indexed: 02/28/2023] Open
Abstract
Following microbial colonization at birth, the gut microbiome plays a vital role in the healthy development of human neonates and impacts both health and disease in later life. Understanding the development of the neonatal gut microbiome and how it interacts with the neonatal host are therefore important areas of study. However, research within this field must address a range of specific challenges that impact the design and implementation of research methods. If not considered ahead of time, these challenges have the potential to introduce biases into studies, negatively affecting the relevance, reproducibility, and impact of any findings. This review outlines the nature of these challenges and points to current and future solutions, as outlined in the literature, to assist researchers in the early stages of study design.
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Affiliation(s)
- Jonathan A Chapman
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Christopher J Stewart
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
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139
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Jia L, Huang S, Sun B, Shang Y, Zhu C. Pharmacomicrobiomics and type 2 diabetes mellitus: A novel perspective towards possible treatment. Front Endocrinol (Lausanne) 2023; 14:1149256. [PMID: 37033254 PMCID: PMC10076675 DOI: 10.3389/fendo.2023.1149256] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 03/14/2023] [Indexed: 04/11/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM), a major driver of mortality worldwide, is more likely to develop other cardiometabolic risk factors, ultimately leading to diabetes-related mortality. Although a set of measures including lifestyle intervention and antidiabetic drugs have been proposed to manage T2DM, problems associated with potential side-effects and drug resistance are still unresolved. Pharmacomicrobiomics is an emerging field that investigates the interactions between the gut microbiome and drug response variability or drug toxicity. In recent years, increasing evidence supports that the gut microbiome, as the second genome, can serve as an attractive target for improving drug efficacy and safety by manipulating its composition. In this review, we outline the different composition of gut microbiome in T2DM and highlight how these microbiomes actually play a vital role in its development. Furthermore, we also investigate current state-of-the-art knowledge on pharmacomicrobiomics and microbiome's role in modulating the response to antidiabetic drugs, as well as provide innovative potential personalized treatments, including approaches for predicting response to treatment and for modulating the microbiome to improve drug efficacy or reduce drug toxicity.
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Affiliation(s)
- Liyang Jia
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shiqiong Huang
- Department of Pharmacy, The First Hospital of Changsha, Changsha, China
| | - Boyu Sun
- Department of Pharmacy, The Third People’s Hospital of Qingdao, Qingdao, China
| | - Yongguang Shang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, China
- *Correspondence: Yongguang Shang, ; Chunsheng Zhu,
| | - Chunsheng Zhu
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Yongguang Shang, ; Chunsheng Zhu,
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140
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Elzinga J, Grouls M, Hooiveld GJEJ, van der Zande M, Smidt H, Bouwmeester H. Systematic comparison of transcriptomes of Caco-2 cells cultured under different cellular and physiological conditions. Arch Toxicol 2023; 97:737-753. [PMID: 36680592 PMCID: PMC9862247 DOI: 10.1007/s00204-022-03430-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/13/2022] [Indexed: 01/22/2023]
Abstract
There is a need for standardized in vitro models emulating the functionalities of the human intestinal tract to study human intestinal health without the use of laboratory animals. The Caco-2 cell line is a well-accepted and highly characterized intestinal barrier model, which has been intensively used to study intestinal (drug) transport, host-microbe interactions and chemical or drug toxicity. This cell line has been cultured in different in vitro models, ranging from simple static to complex dynamic microfluidic models. We aimed to investigate the effect of these different in vitro experimental variables on gene expression. To this end, we systematically collected and extracted data from studies in which transcriptome analyses were performed on Caco-2 cells grown on permeable membranes. A collection of 13 studies comprising 100 samples revealed a weak association of experimental variables with overall as well as individual gene expression. This can be explained by the large heterogeneity in cell culture practice, or the lack of adequate reporting thereof, as suggested by our systematic analysis of experimental parameters not included in the main analysis. Given the rapidly increasing use of in vitro cell culture models, including more advanced (micro) fluidic models, our analysis reinforces the need for improved, standardized reporting protocols. Additionally, our systematic analysis serves as a template for future comparative studies on in vitro transcriptome and other experimental data.
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Affiliation(s)
- Janneke Elzinga
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands.
| | - Menno Grouls
- Division of Toxicology, Wageningen University and Research, Wageningen, The Netherlands
| | - Guido J E J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands
| | - Meike van der Zande
- Wageningen Food Safety Research, Wageningen University and Research, Wageningen, The Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Hans Bouwmeester
- Division of Toxicology, Wageningen University and Research, Wageningen, The Netherlands
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141
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Yang Q, Van Haute M, Korth N, Sattler S, Rose D, Juritsch A, Shao J, Beede K, Schmaltz R, Price J, Toy J, Ramer-Tait AE, Benson AK. The waxy mutation in sorghum and other cereal grains reshapes the gut microbiome by reducing levels of multiple beneficial species. Gut Microbes 2023; 15:2178799. [PMID: 37610979 PMCID: PMC9980621 DOI: 10.1080/19490976.2023.2178799] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 12/16/2022] [Accepted: 02/02/2023] [Indexed: 08/25/2023] Open
Abstract
Waxy starches from cereal grains contain >90% amylopectin due to naturally occurring mutations that block amylose biosynthesis. Waxy starches have unique organoleptic characteristics (e.g. sticky rice) as well as desirable physicochemical properties for food processing. Using isogenic pairs of wild type sorghum lines and their waxy derivatives, we studied the effects of waxy starches in the whole grain context on the human gut microbiome. In vitro fermentations with human stool microbiomes show that beneficial taxonomic and metabolic signatures driven by grain from wild type parental lines are lost in fermentations of grain from the waxy derivatives and the beneficial signatures can be restored by addition of resistant starch. These undesirable effects are conserved in fermentations of waxy maize, wheat, rice and millet. We also demonstrate that humanized gnotobiotic mice fed low fiber diets supplemented with 20% grain from isogenic pairs of waxy vs. wild type parental sorghum have significant differences in microbiome composition and show increased weight gain. We conclude that the benefits of waxy starches on food functionality can have unintended tradeoff effects on the gut microbiome and host physiology that could be particularly relevant in human populations consuming large amounts of waxy grains.
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Affiliation(s)
- Qinnan Yang
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - Mallory Van Haute
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - Nate Korth
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
- Complex Biosystems Graduate Program, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Scott Sattler
- Wheat, Sorghum and Forage Research Unit, USDA-Agricultural Research Service, Lincoln, NE, USA
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Devin Rose
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Anthony Juritsch
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - Jing Shao
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - Kristin Beede
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - Robert Schmaltz
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - Jeff Price
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - John Toy
- Wheat, Sorghum and Forage Research Unit, USDA-Agricultural Research Service, Lincoln, NE, USA
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Amanda E. Ramer-Tait
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
| | - Andrew K. Benson
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Food for Health Center at the University of Nebraska, Lincoln, NE, USA
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142
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Zádori ZS, Király K, Al-Khrasani M, Gyires K. Interactions between NSAIDs, opioids and the gut microbiota - Future perspectives in the management of inflammation and pain. Pharmacol Ther 2023; 241:108327. [PMID: 36473615 DOI: 10.1016/j.pharmthera.2022.108327] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
The composition of intestinal microbiota is influenced by a number of factors, including medications, which may have a substantial impact on host physiology. Nonsteroidal anti-inflammatory drugs (NSAIDs) and opioid analgesics are among those widely used medications that have been shown to alter microbiota composition in both animals and humans. Although much effort has been devoted to identify microbiota signatures associated with these medications, much less is known about the underlying mechanisms. Mucosal inflammation, changes in intestinal motility, luminal pH and bile acid metabolism, or direct drug-induced inhibitory effect on bacterial growth are all potential contributors to NSAID- and opioid-induced dysbiosis, however, only a few studies have addressed directly these issues. In addition, there is a notable overlap between the microbiota signatures of these drugs and certain diseases in which they are used, such as spondyloarthritis (SpA), rheumatoid arthritis (RA) and neuropathic pain associated with type 2 diabetes (T2D). The aims of the present review are threefold. First, we aim to provide a comprehensive up-to-date summary on the bacterial alterations caused by NSAIDs and opioids. Second, we critically review the available data on the possible underlying mechanisms of dysbiosis. Third, we review the current knowledge on gut dysbiosis associated with SpA, RA and neuropathic pain in T2D, and highlight the similarities between them and those caused by NSAIDs and opioids. We posit that drug-induced dysbiosis may contribute to the persistence of these diseases, and may potentially limit the therapeutic effect of these medications by long-term use. In this context, we will review the available literature data on the effect of probiotic supplementation and fecal microbiota transplantation on the therapeutic efficacy of NSAIDs and opioids in these diseases.
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Affiliation(s)
- Zoltán S Zádori
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.
| | - Kornél Király
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Mahmoud Al-Khrasani
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Klára Gyires
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
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143
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Lo EKK, Wang X, Lee PK, Wong HC, Lee JCY, Gómez-Gallego C, Zhao D, El-Nezami H, Li J. Mechanistic insights into zearalenone-accelerated colorectal cancer in mice using integrative multi-omics approaches. Comput Struct Biotechnol J 2023; 21:1785-1796. [PMID: 36915382 PMCID: PMC10006464 DOI: 10.1016/j.csbj.2023.02.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Zearalenone (ZEA), a secondary metabolite of Fusarium fungi found in cereal-based foods, promotes the growth of colon, breast, and prostate cancer cells in vitro. However, the lack of animal studies hinders a deeper mechanistic understanding of the cancer-promoting effects of ZEA. This study aimed to determine the effect of ZEA on colon cancer progression and its underlying mechanisms. Through integrative analyses of transcriptomics, metabolomics, metagenomics, and host phenotypes, we investigated the impact of a 4-week ZEA intervention on colorectal cancer in xenograft mice. Our results showed a twofold increase in tumor weight with the 4-week ZEA intervention. ZEA exposure significantly increased the mRNA and protein levels of BEST4, DGKB, and Ki67 and the phosphorylation levels of ERK1/2 and AKT. Serum metabolomic analysis revealed that the levels of amino acids, including histidine, arginine, citrulline, and glycine, decreased significantly in the ZEA group. Furthermore, ZEA lowered the alpha diversity of the gut microbiota and reduced the abundance of nine genera, including Tuzzerella and Rikenella. Further association analysis indicated that Tuzzerella was negatively associated with the expression of BEST4 and DGKB genes, serum uric acid levels, and tumor weight. Additionally, circulatory hippuric acid levels positively correlated with tumor weight and the expression of oncogenic genes, including ROBO3, JAK3, and BEST4. Altogether, our results indicated that ZEA promotes colon cancer progression by enhancing the BEST4/AKT/ERK1/2 pathway, lowering circulatory amino acid concentrations, altering gut microbiota composition, and suppressing short chain fatty acids production.
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Affiliation(s)
- Emily Kwun Kwan Lo
- School of Biological Sciences, University of Hong Kong, Pokfulam 999077, Hong Kong, China
| | - Xiuwan Wang
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, China
| | - Pui-Kei Lee
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Ho-Ching Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jetty Chung-Yung Lee
- School of Biological Sciences, University of Hong Kong, Pokfulam 999077, Hong Kong, China
| | - Carlos Gómez-Gallego
- Institute of Public Health and Clinical Nutrition, School of Medicine, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Danyue Zhao
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.,Research Institute for Future Food, The Hong Kong Polytechnic University, Hong Kong, China.,Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hong Kong, China
| | - Hani El-Nezami
- School of Biological Sciences, University of Hong Kong, Pokfulam 999077, Hong Kong, China.,Institute of Public Health and Clinical Nutrition, School of Medicine, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Jun Li
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, China.,School of Data Science, City University of Hong Kong, Hong Kong, China
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144
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Tousoulis D, Guzik T, Padro T, Duncker DJ, De Luca G, Eringa E, Vavlukis M, Antonopoulos AS, Katsimichas T, Cenko E, Djordjevic-Dikic A, Fleming I, Manfrini O, Trifunovic D, Antoniades C, Crea F. Mechanisms, therapeutic implications, and methodological challenges of gut microbiota and cardiovascular diseases: a position paper by the ESC Working Group on Coronary Pathophysiology and Microcirculation. Cardiovasc Res 2022; 118:3171-3182. [PMID: 35420126 PMCID: PMC11023489 DOI: 10.1093/cvr/cvac057] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 01/27/2022] [Accepted: 02/03/2022] [Indexed: 01/25/2023] Open
Abstract
The human gut microbiota is the microbial ecosystem in the small and large intestines of humans. It has been naturally preserved and evolved to play an important role in the function of the gastrointestinal tract and the physiology of its host, protecting from pathogen colonization, and participating in vitamin synthesis, the functions of the immune system, as well as glucose homeostasis and lipid metabolism, among others. Mounting evidence from animal and human studies indicates that the composition and metabolic profiles of the gut microbiota are linked to the pathogenesis of cardiovascular disease, particularly arterial hypertension, atherosclerosis, and heart failure. In this review article, we provide an overview of the function of the human gut microbiota, summarize, and critically address the evidence linking compositional and functional alterations of the gut microbiota with atherosclerosis and coronary artery disease and discuss the potential of strategies for therapeutically targeting the gut microbiota through various interventions.
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Affiliation(s)
- Dimitris Tousoulis
- 1st Cardiology Department, National and Kapodistrian University of Athens, Vas. Sofias Avenue 114, 11527 Athens, Greece
| | - Tomasz Guzik
- Institute of Cardiovascular Medical Sciences, BHF Glasgow Cardiovascular Research Centre, UK
| | - Teresa Padro
- Sant Pau Institute for Biomedical Research, Barcelona, Spain
| | - Dirk J Duncker
- Department of Cardiology, Thorax Center, Erasmus MC, Rotterdam, the Netherlands
| | - Giuseppe De Luca
- Division of Cardiology, Eastern Piedmont University, Novara, Italy
| | - Etto Eringa
- Institute of Cardiovascular Research, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | | | - Alexios S Antonopoulos
- 1st Cardiology Department, National and Kapodistrian University of Athens, Vas. Sofias Avenue 114, 11527 Athens, Greece
| | - Themistoklis Katsimichas
- 1st Cardiology Department, National and Kapodistrian University of Athens, Vas. Sofias Avenue 114, 11527 Athens, Greece
| | - Edina Cenko
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | | | - Ingrid Fleming
- Centre of Molecular Medicine, Goethe University, Frankfurt, Germany
| | - Olivia Manfrini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | | | | | - Filippo Crea
- Department of Cardiology and Pulmonary Sciences, Catholic University of the Sacred Heart, Rome, Italy
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Qu J, Shao C, Ying Y, Wu Y, Liu W, Tian Y, Yin Z, Li X, Yu Z, Shuai J. The spring-like effect of microRNA-31 in balancing inflammatory and regenerative responses in colitis. Front Microbiol 2022; 13:1089729. [PMID: 36590397 PMCID: PMC9800619 DOI: 10.3389/fmicb.2022.1089729] [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: 11/04/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) are chronic inflammatory disorders caused by the disruption of immune tolerance to the gut microbiota. MicroRNA-31 (MIR31) has been proven to be up-regulated in intestinal tissues from patients with IBDs and colitis-associated neoplasias. While the functional role of MIR31 in colitis and related diseases remain elusive. Combining mathematical modeling and experimental analysis, we systematically explored the regulatory mechanism of MIR31 in inflammatory and epithelial regeneration responses in colitis. Level of MIR31 presents an "adaptation" behavior in dextran sulfate sodium (DSS)-induced colitis, and the similar behavior is also observed for the key cytokines of p65 and STAT3. Simulation analysis predicts MIR31 suppresses the activation of p65 and STAT3 but accelerates the recovery of epithelia in colitis, which are validated by our experimental observations. Further analysis reveals that the number of proliferative epithelial cells, which characterizes the inflammatory process and the recovery of epithelia in colitis, is mainly determined by the inhibition of MIR31 on IL17RA. MIR31 promotes epithelial regeneration in low levels of DSS-induced colitis but inhibits inflammation with high DSS levels, which is dominated by the competition for MIR31 to either inhibit inflammation or promote epithelial regeneration by binding to different targets. The binding probability determines the functional transformation of MIR31, but the functional strength is determined by MIR31 levels. Thus, the role of MIR31 in the inflammatory response can be described as the "spring-like effect," where DSS, MIR31 action strength, and proliferative epithelial cell number are regarded as external force, intrinsic spring force, and spring length, respectively. Overall, our study uncovers the vital roles of MIR31 in balancing inflammation and the recovery of epithelia in colitis, providing potential clues for the development of therapeutic targets in drug design.
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Affiliation(s)
- Jing Qu
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
| | - Chunlei Shao
- State Key Laboratories for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yongfa Ying
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
| | - Yuning Wu
- Department of Mathematics and Physics, Fujian Jiangxia University, Fuzhou, China
| | - Wen Liu
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
| | - Yuhua Tian
- State Key Laboratories for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Zhiyong Yin
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
| | - Xiang Li
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
- National Institute for Data Science in Health and Medicine, Xiamen University, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, China
| | - Zhengquan Yu
- State Key Laboratories for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jianwei Shuai
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
- National Institute for Data Science in Health and Medicine, Xiamen University, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), University of Chinese Academy of Sciences, Wenzhou, China
- Wenzhou Institute, Wenzhou Key Laboratory of Biophysics, University of Chinese Academy of Sciences, Wenzhou, China
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146
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Daniel H. Gut physiology meets microbiome science. GUT MICROBIOME (CAMBRIDGE, ENGLAND) 2022; 4:e1. [PMID: 39295899 PMCID: PMC11406389 DOI: 10.1017/gmb.2022.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/13/2022] [Accepted: 10/18/2022] [Indexed: 09/21/2024]
Abstract
Research on the gut microbiome has gained high popularity and almost every disease has meanwhile been linked to alterations in microbiome composition. Typically assessed via stool samples, the microbiome displays a huge diversity with a multitude of environmental parameters already identified as contributing to its character. Despite impressive scientific progress, normal microbiome diversity remains largely unexplained and it is tempting to speculate some of the yet unexplained variance is hidden in normal gut physiology. Although a few genome/phenome-wide associations studies have recently highlighted physiological parameters such as stool frequency, known as contributing to microbiome diversity, there is a large knowledge base from decades of basic research on gut functions that can be explored for possible links to stool features and microbiome characteristics. And, when extrapolating findings from faecal samples to the biology in the intestinal lumen or the mucosal microenvironment, gut anatomy and physiology features need to be considered. Similarly, differences in anatomy and physiology between rodents and humans need attention when discussing findings in animals in relation to human physiology and nutrition.
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Affiliation(s)
- Hannelore Daniel
- ex. School of Life Sciences, Technical University of Munich, Gregor-Mendel-Strasse 2, 85354 Freising, Germany
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147
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Wortelboer K, Koopen AM, Herrema H, de Vos WM, Nieuwdorp M, Kemper EM. From fecal microbiota transplantation toward next-generation beneficial microbes: The case of Anaerobutyricum soehngenii. Front Med (Lausanne) 2022; 9:1077275. [PMID: 36544495 PMCID: PMC9760881 DOI: 10.3389/fmed.2022.1077275] [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: 10/22/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
The commensal gut microbiota is important for human health and well-being whereas deviations of the gut microbiota have been associated with a multitude of diseases. Restoration of a balanced and diverse microbiota by fecal microbiota transplantation (FMT) has emerged as a potential treatment strategy and promising tool to study causality of the microbiota in disease pathogenesis. However, FMT comes with logistical challenges and potential safety risks, such as the transfer of pathogenic microorganisms, undesired phenotypes or an increased risk of developing disease later in life. Therefore, a more controlled, personalized mixture of cultured beneficial microbes might prove a better alternative. Most of these beneficial microbes will be endogenous commensals to the host without a long history of safe and beneficial use and are therefore commonly referred to as next-generation probiotics (NGP) or live biotherapeutic products (LBP). Following a previous FMT study within our group, the commensal butyrate producer Anaerobutyricum spp. (previously named Eubacterium hallii) was found to be associated with improved insulin-sensitivity in subjects with the metabolic syndrome. After the preclinical testing with Anaerobutyricum soehngenii in mice models was completed, the strain was produced under controlled conditions and several clinical studies evaluating its safety and efficacy in humans were performed. Here, we describe and reflect on the development of A. soehngenii for clinical use, providing practical guidance for the development and testing of NGPs and reflecting on the current regulatory framework.
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Affiliation(s)
- Koen Wortelboer
- Department of Experimental Vascular Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Diabetes and Metabolism, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, Netherlands
- Department of Pharmacy, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
| | - Annefleur M. Koopen
- Amsterdam Cardiovascular Sciences, Diabetes and Metabolism, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, Netherlands
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
| | - Hilde Herrema
- Department of Experimental Vascular Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Diabetes and Metabolism, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, Netherlands
| | - Willem M. de Vos
- Department of Experimental Vascular Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
- Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Max Nieuwdorp
- Department of Experimental Vascular Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Diabetes and Metabolism, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, Netherlands
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
- Diabetes Center, Department of Internal Medicine, Amsterdam UMC, Location VUMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - E. Marleen Kemper
- Department of Pharmacy, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, Netherlands
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148
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Osborn LJ, Schultz K, Massey W, DeLucia B, Choucair I, Varadharajan V, Banerjee R, Fung K, Horak AJ, Orabi D, Nemet I, Nagy LE, Wang Z, Allende DS, Willard BB, Sangwan N, Hajjar AM, McDonald C, Ahern PP, Hazen SL, Brown JM, Claesen J. A gut microbial metabolite of dietary polyphenols reverses obesity-driven hepatic steatosis. Proc Natl Acad Sci U S A 2022; 119:e2202934119. [PMID: 36417437 PMCID: PMC9860326 DOI: 10.1073/pnas.2202934119] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 10/13/2022] [Indexed: 11/24/2022] Open
Abstract
The molecular mechanisms by which dietary fruits and vegetables confer cardiometabolic benefits remain poorly understood. Historically, these beneficial properties have been attributed to the antioxidant activity of flavonoids. Here, we reveal that the host metabolic benefits associated with flavonoid consumption hinge, in part, on gut microbial metabolism. Specifically, we show that a single gut microbial flavonoid catabolite, 4-hydroxyphenylacetic acid (4-HPAA), is sufficient to reduce diet-induced cardiometabolic disease (CMD) burden in mice. The addition of flavonoids to a high fat diet heightened the levels of 4-HPAA within the portal plasma and attenuated obesity, and continuous delivery of 4-HPAA was sufficient to reverse hepatic steatosis. The antisteatotic effect was shown to be associated with the activation of AMP-activated protein kinase α (AMPKα). In a large survey of healthy human gut metagenomes, just over one percent contained homologs of all four characterized bacterial genes required to catabolize flavonols into 4-HPAA. Our results demonstrate the gut microbial contribution to the metabolic benefits associated with flavonoid consumption and underscore the rarity of this process in human gut microbial communities.
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Affiliation(s)
- Lucas J. Osborn
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
| | - Karlee Schultz
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- College of Arts and Sciences, John Carroll University, University Heights, OH44118
| | - William Massey
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
| | - Beckey DeLucia
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Ibrahim Choucair
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Venkateshwari Varadharajan
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Rakhee Banerjee
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Kevin Fung
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Anthony J. Horak
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Danny Orabi
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
- Department of General Surgery, Cleveland Clinic, Cleveland, OH44195
| | - Ina Nemet
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Laura E. Nagy
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
- Department of Inflammation and Immunity, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Zeneng Wang
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Daniela S. Allende
- Robert J. Tomsich Pathology and Laboratory Medicine Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Belinda B. Willard
- Mass Spectrometry Core, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Naseer Sangwan
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Adeline M. Hajjar
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Christine McDonald
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
- Department of Inflammation and Immunity, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
| | - Philip P. Ahern
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
| | - Stanley L. Hazen
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Department of Cardiovascular Medicine, Heart Vascular, and Thoracic Institute Cleveland Clinic, Cleveland, OH44195
| | - J. Mark Brown
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
| | - Jan Claesen
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Center for Microbiome and Human Health, Lerner Research Institute of the Cleveland Clinic, Cleveland, OH44195
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH44195
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Ahlawat S, Sharma KK. Lepidopteran insects: emerging model organisms to study infection by enteropathogens. Folia Microbiol (Praha) 2022; 68:181-196. [PMID: 36417090 DOI: 10.1007/s12223-022-01014-y] [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: 06/04/2022] [Accepted: 11/03/2022] [Indexed: 11/24/2022]
Abstract
The in vivo analysis of a pathogen is a critical step in gaining greater knowledge of pathogen biology and host-pathogen interactions. In the last two decades, there has been a notable rise in the number of studies on developing insects as a model for studying pathogens, which provides various benefits, such as ethical acceptability, relatively short life cycle, and cost-effective care and maintenance relative to routinely used rodent infection models. Furthermore, lepidopteran insects provide many advantages, such as easy handling and tissue extraction due to their large size relative to other invertebrate models, like Caenorhabditis elegans. Additionally, insects have an innate immune system that is highly analogous to vertebrates. In the present review, we discuss the components of the insect's larval immune system, which strengthens its usage as an alternative host, and present an updated overview of the research findings involving lepidopteran insects (Galleria mellonella, Manduca sexta, Bombyx mori, and Helicoverpa armigera) as infection models to study the virulence by enteropathogens due to the homology between insect and vertebrate gut.
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Affiliation(s)
- Shruti Ahlawat
- Department of Microbiology, Faculty of Allied Health Sciences, SGT University, Gurgaon-Badli Road Chandu, Budhera, Gurugram, 122505, Haryana, India.
| | - Krishna Kant Sharma
- Laboratory of Enzymology and Recombinant DNA Technology, Department of Microbiology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
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150
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Zhang Y, Zhang D, Bai X, Chen Y, Qiu Q, Shang X, Deng Y, Yang H, Fang X, Yang Z, Han L. The impact of Traditional Chinese Medicine on mouse gut microbiota abundances and interactions based on Granger causality and pathway analysis. Front Microbiol 2022; 13:980082. [PMID: 36439829 PMCID: PMC9692106 DOI: 10.3389/fmicb.2022.980082] [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: 07/14/2022] [Accepted: 10/11/2022] [Indexed: 11/03/2023] Open
Abstract
Objectives The intestinal microbiota is essential in absorbing nutrients and defending against pathogens and is associated with various diseases, including obesity, type 2 diabetes, and hypertension. As an alternative medicine, Traditional Chinese Medicine (TCM) has long been used in disease treatment and healthcare, partly because it may mediate gut microbiota. However, the specific effects of TCM on the abundance and interactions of microbiota remain unknown. Moreover, using TCM ingredients and data detailing changes in the abundance of gut microorganisms, we developed bioinformatic methods that decipher the impact of TCM on microorganism interactions. Methods The dynamics of gut microorganisms affected by TCM treatments is explored using a mouse model, which provided the abundance of 70 microorganisms over time. The Granger causality analysis was used to measure microorganism interactions. Novel "serial connection" and "diverging connection" models were used to identify molecular mechanisms underlying the impact of TCM on gut microorganism interactions, based on microorganism proteins, TCM chemical ingredients, and KEGG reaction equations. Results Codonopsis pilosula (Dangshen), Cassia twig (Gui Zhi), Radices saussureae (Mu Xiang), and Sijunzi Decoction did not cause an increase in the abundance of harmful microorganisms. Most TCMs decreased the abundance of Bifidobacterium pseudolongum, suggesting a Bifidobacterium pseudolongum supplement should be used during TCM treatment. The Granger causality analysis indicated that TCM treatment changes more than half the interactions between the 70 microorganisms, and "serial connection" and "diverging connection" models suggested that changes in interactions may be related to the reaction number connecting species proteins and TCM ingredients. From a species diversity perspective, a TCM decoction is better than a single herb for healthcare. The Sijunzi Decoction only significantly increased the abundance of Bifidobacterium pseudolongum and did not cause a decrease in the abundance of other species but was found to improve the alpha diversity with the lowest replacement rate. Conclusions Because most of the nine TCMs are medicinal and edible plants, we expect the methods and results presented can be used to optimize and integrate microbiota and TCMs into healthcare processes. Moreover, as a control study, these results can be combined with future disease mouse models to link variations in species abundance with particular diseases.
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Affiliation(s)
- Yi Zhang
- Department of Scientific Research, Kangmeihuada GeneTech Co., Ltd., (KMHD), Shenzhen, China
- Department of Mathematics of Science College/Hebei Province Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang, China
| | - Dahan Zhang
- Department of Scientific Research, Kangmeihuada GeneTech Co., Ltd., (KMHD), Shenzhen, China
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xiaogang Bai
- Department of Scientific Research, Kangmeihuada GeneTech Co., Ltd., (KMHD), Shenzhen, China
- Department of Mathematics of Science College/Hebei Province Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang, China
| | - Yang Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qinwei Qiu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoxiao Shang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yusheng Deng
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongyan Yang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaodong Fang
- Department of Scientific Research, Kangmeihuada GeneTech Co., Ltd., (KMHD), Shenzhen, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhimin Yang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lijuan Han
- Department of Scientific Research, Kangmeihuada GeneTech Co., Ltd., (KMHD), Shenzhen, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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