1
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Luo M, Han Y, Chen Y, Du H, Chen B, Gao Z, Wang Q, Cao Y, Xiao H. Unveiling the role of gut microbiota in curcumin metabolism using antibiotic-treated mice. Food Chem 2024; 460:140706. [PMID: 39096800 DOI: 10.1016/j.foodchem.2024.140706] [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: 05/13/2024] [Revised: 07/23/2024] [Accepted: 07/28/2024] [Indexed: 08/05/2024]
Abstract
Curcumin might exert its therapeutic effects by interacting with gut microbiota. However, the role of gut microbiota in curcumin metabolism in vivo remains poorly understood. To address this, we used antibiotics to deplete gut microbiota and compared curcumin metabolism in control and antibiotic-treated mice. Using Q-TOF and triple quadrupole mass spectrometry, we identified and quantified curcumin metabolites, revealing distinct metabolic pathways in these two mice groups. The novel metabolites, hexahydro-dimethyl-curcumin and hexahydro-didemethyl-curcumin were exclusively derived from gut microbiota. Additionally, gut bacteria deconjugated curcumin metabolites back into their bioactive forms. Moreover, control mice exhibited significantly lower curcumin degradation, suggesting a protective role of gut microbiota against degradation. In conclusion, our results indicated that gut microbiota might enhance the effectiveness of curcumin by deconjugation, production of active metabolites, and protection against degradation in the large intestine. This study enhances our understanding of the interactions between curcumin and gut microbiota.
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Affiliation(s)
- Minna Luo
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Yanhui Han
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Yilu Chen
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Hengjun Du
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Bin Chen
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Zili Gao
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Qi Wang
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
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2
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Romero-Rodríguez A, Ruíz-Villafán B, Sánchez S, Paredes-Sabja D. Is there a role for intestinal sporobiota in the antimicrobial resistance crisis? Microbiol Res 2024; 288:127870. [PMID: 39173554 DOI: 10.1016/j.micres.2024.127870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/23/2024] [Accepted: 08/06/2024] [Indexed: 08/24/2024]
Abstract
Antimicrobial resistance (AMR) is a complex issue requiring specific, multi-sectoral measures to slow its spread. When people are exposed to antimicrobial agents, it can cause resistant bacteria to increase. This means that the use, misuse, and excessive use of antimicrobial agents exert selective pressure on bacteria, which can lead to the development of "silent" reservoirs of antimicrobial resistance genes. These genes can later be mobilized into pathogenic bacteria and contribute to the spread of AMR. Many socioeconomic and environmental factors influence the transmission and dissemination of resistance genes, such as the quality of healthcare systems, water sanitation, hygiene infrastructure, and pollution. The sporobiota is an essential part of the gut microbiota that plays a role in maintaining gut homeostasis. However, because spores are highly transmissible and can spread easily, they can be a vector for AMR. The sporobiota resistome, particularly the mobile resistome, is important for tracking, managing, and limiting the spread of antimicrobial resistance genes among pathogenic and commensal bacterial species.
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Affiliation(s)
- A Romero-Rodríguez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Ciudad de México 04510, Mexico.
| | - B Ruíz-Villafán
- Laboratorio de Microbiología Industrial. Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - S Sánchez
- Laboratorio de Microbiología Industrial. Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - D Paredes-Sabja
- Department of Biology, Texas A&M University, College Station, TX 77843, USA
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3
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Xue-Zhang, Li CY, Zhu GH, Song LL, Zhao YW, Ma YH, Ping-Tian, Chen WS, Ge GB. Discovery of Tetrahydro Tanshinone I as a Naturally Occurring Covalent Pan-Inhibitor Against Gut Microbial Bile Salt Hydrolases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39378230 DOI: 10.1021/acs.jafc.4c03617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2024]
Abstract
Gut microbial bile salt hydrolases (gmBSHs), an important class of bacteria-produced cysteine hydrolases, play a crucial role in bile acid metabolism. Modulating the total gmBSH activity is a feasible way for ameliorating some metabolic diseases including colorectal cancer, type 2 diabetes, and obesity. This study reported the discovery and characterization of a botanical compound as a covalent pan-inhibitor of gmBSHs. Following the screening of more than 100 botanical compounds, tanshinones were found with strong time-dependent anti-EfBSH effects. After that, a total of 17 naturally occurring tanshinones were collected, and their anti-EfBSH potentials were tested. Among all tested tanshinones, tetrahydro tanshinone I (THTI) exhibited the most potent inhibitory effects against five gmBSHs (EfBSH, LsBSH, BtBSH, CpBSH, and BlBSH), showing the IC50 values ranging from 0.28 ± 0.05 μM to 1.62 ± 0.07 μM. Further investigations showed that THTI could covalently modify the conserved catalytic cysteine (Cys2) of all tested gmBSHs, while this agent could strongly inhibit the total gmBSHs activity in live microorganisms and murine gut luminal content. Collectively, THTI is identified as a naturally occurring covalent pan-inhibitor of gmBSHs, which offers a promising lead compound to develop more efficacious gmBSHs inhibitors for the management of bile acid metabolism and related metabolic disorders.
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Affiliation(s)
- Xue-Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chun-Yu Li
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guang-Hao Zhu
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Li-Lin Song
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yi-Wen Zhao
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yu-Hui Ma
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ping-Tian
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Wan-Sheng Chen
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guang-Bo Ge
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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4
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Vich Vila A, Zhang J, Liu M, Faber KN, Weersma RK. Untargeted faecal metabolomics for the discovery of biomarkers and treatment targets for inflammatory bowel diseases. Gut 2024; 73:1909-1920. [PMID: 39002973 DOI: 10.1136/gutjnl-2023-329969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Accepted: 06/23/2024] [Indexed: 07/15/2024]
Abstract
The gut microbiome has been recognised as a key component in the pathogenesis of inflammatory bowel diseases (IBD), and the wide range of metabolites produced by gut bacteria are an important mechanism by which the human microbiome interacts with host immunity or host metabolism. High-throughput metabolomic profiling and novel computational approaches now allow for comprehensive assessment of thousands of metabolites in diverse biomaterials, including faecal samples. Several groups of metabolites, including short-chain fatty acids, tryptophan metabolites and bile acids, have been associated with IBD. In this Recent Advances article, we describe the contribution of metabolomics research to the field of IBD, with a focus on faecal metabolomics. We discuss the latest findings on the significance of these metabolites for IBD prognosis and therapeutic interventions and offer insights into the future directions of metabolomics research.
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Affiliation(s)
- Arnau Vich Vila
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Jingwan Zhang
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong (SAR), People's Republic of China
- Microbiota I-Center (MagIC), Hong Kong (SAR), People's Republic of China
| | - Moting Liu
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Klaas Nico Faber
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Rinse K Weersma
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
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Kim Y, Kokkinias K, Sabag-Daigle A, Leleiwi I, Borton M, Shaffer M, Baniasad M, Daly R, Ahmer BMM, Wrighton KC, Wysocki VH. Time-Resolved Multiomics Illustrates Host and Gut Microbe Interactions during Salmonella Infection. J Proteome Res 2024. [PMID: 39374136 DOI: 10.1021/acs.jproteome.4c00172] [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: 10/09/2024]
Abstract
Salmonella infection, also known as Salmonellosis, is one of the most common food-borne illnesses. Salmonella infection can trigger host defensive functions, including an inflammatory response. The provoked-host inflammatory response has a significant impact on the bacterial population in the gut. In addition, Salmonella competes with other gut microorganisms for survival and growth within the host. Compositional and functional alterations in gut bacteria occur because of the host immunological response and competition between Salmonella and the gut microbiome. Host variation and the inherent complexity of the gut microbial community make understanding commensal and pathogen interactions particularly difficult during a Salmonella infection. Here, we present metabolomics and lipidomics analyses along with the 16S rRNA sequence analysis, revealing a comprehensive view of the metabolic interactions between the host and gut microbiota during Salmonella infection in a CBA/J mouse model. We found that different metabolic pathways were altered over the four investigated time points of Salmonella infection (days -2, +2, +6, and +13). Furthermore, metatranscriptomics analysis integrated with metabolomics and lipidomics analysis facilitated an understanding of the heterogeneous response of mice, depending on the degree of dysbiosis.
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Affiliation(s)
- Yongseok Kim
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Katherine Kokkinias
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Anice Sabag-Daigle
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, United States
| | - Ikaia Leleiwi
- Department of Cell & Molecular Biology, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Mikayla Borton
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Michael Shaffer
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Maryam Baniasad
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Rebecca Daly
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Brian M M Ahmer
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, United States
| | - Kelly C Wrighton
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Vicki H Wysocki
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
- Resource for Native Mass Spectrometry Guided Structural Biology, The Ohio State University, Columbus, Ohio 43210, United States
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6
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Liu Y, Li T, Xu J, Li S, Li B, Elgozair M. Apolipoprotein H deficiency exacerbates alcohol-induced liver injury via gut Dysbiosis and altered bile acid metabolism. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159535. [PMID: 39033850 DOI: 10.1016/j.bbalip.2024.159535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 07/06/2024] [Accepted: 07/14/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND APOH plays an essential role in lipid metabolism and the transport of lipids in the circulation. Previous studies have shown that APOH deficiency causes fatty liver and gut microbiota dysbiosis in mouse models. However, the role and potential mechanisms of APOH deficiency in the pathogenesis of alcoholic liver disease remain unclear. METHODS C57BL/6 WT and ApoH-/- mice were used to construct the binge-on-chronic alcohol feeding model. Mouse liver transcriptome, targeted bile acid metabolome, and 16S gut bacterial taxa were assayed and analyzed. Open-source human liver transcriptome dataset was analyzed. RESULTS ApoH-/- mice fed with alcohol showed severe hepatic steatosis. Liver RNAseq and RT-qPCR data indicated that APOH deficiency predominantly impacts hepatic lipid metabolism by disrupting de novo lipogenesis, cholesterol processing, and bile acid metabolism. A targeted bile acid metabolomics assay indicated significant changes in bile acid composition, including increased percentages of TCA in the liver and DCA in the gut of alcohol-fed ApoH-/- mice. The concentrations of CA, NorCA, and HCA in the liver were higher in ApoH-/- mice on an ethanol diet compared to the control mice (p < 0.05). Additionally, APOH deficiency altered the composition of gut flora, which correlated with changes in the liver bile acid composition in the ethanol-feeding mouse model. Finally, open-source transcript-level data from human ALD livers highlighted a remarkable link between APOH downregulation and steatohepatitis, as well as bile acid metabolism. CONCLUSION APOH deficiency aggravates alcohol induced hepatic steatosis through the disruption of gut microbiota homeostasis and bile acid metabolism in mice.
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Affiliation(s)
- Yaming Liu
- Department of Gastroenterology and Hepatology, The Second Hospital of Dalian Medical University, Dalian, Liaoning Province, China 116011; Department of Digestive Diseases, School of Medicine, Xiamen University, Xiamen, Fujian Province, China 361001.
| | - Tingting Li
- Department of Digestive Diseases, School of Medicine, Xiamen University, Xiamen, Fujian Province, China 361001
| | - Jun Xu
- Clinical Center of Immune-Mediated Digestive Diseases, Peking University People's Hospital, Beijing, China 100044
| | - Shanshan Li
- The Fourth Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing, China 100069
| | - Binbin Li
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA 55902
| | - Mohamad Elgozair
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA 55902
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7
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Wang B, Han D, Hu X, Chen J, Liu Y, Wu J. Exploring the role of a novel postbiotic bile acid: Interplay with gut microbiota, modulation of the farnesoid X receptor, and prospects for clinical translation. Microbiol Res 2024; 287:127865. [PMID: 39121702 DOI: 10.1016/j.micres.2024.127865] [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: 05/02/2024] [Revised: 08/01/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024]
Abstract
The gut microbiota, mainly resides in the colon, possesses a remarkable ability to metabolize different substrates to create bioactive substances, including short-chain fatty acids, indole-3-propionic acid, and secondary bile acids. In the liver, bile acids are synthesized from cholesterol and then undergo modification by the gut microbiota. Beyond those reclaimed by the enterohepatic circulation, small percentage of bile acids escaped reabsorption, entering the systemic circulation to bind to several receptors, such as farnesoid X receptor (FXR), thereby exert their biological effects. Gut microbiota interplays with bile acids by affecting their synthesis and determining the production of secondary bile acids. Reciprocally, bile acids shape out the structure of gut microbiota. The interplay of bile acids and FXR is involved in the development of multisystemic conditions, encompassing metabolic diseases, hepatobiliary diseases, immune associated disorders. In the review, we aim to provide a thorough review of the intricate crosstalk between the gut microbiota and bile acids, the physiological roles of bile acids and FXR in mammals' health and disease, and the clinical translational considerations of gut microbiota-bile acids-FXR in the treatment of the diseases.
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Affiliation(s)
- Beibei Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Dong Han
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Xinyue Hu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Jing Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Yuwei Liu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Jing Wu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China.
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8
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Kazemian N, Pakpour S. Understanding the impact of the gut microbiome on opioid use disorder: Pathways, mechanisms, and treatment insights. Microb Biotechnol 2024; 17:e70030. [PMID: 39388360 PMCID: PMC11466222 DOI: 10.1111/1751-7915.70030] [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: 05/14/2024] [Accepted: 09/17/2024] [Indexed: 10/12/2024] Open
Abstract
The widespread use of opioids for chronic pain management not only poses a significant public health issue but also contributes to the risk of tolerance, dependence, and addiction, leading to opioid use disorder (OUD), which affects millions globally each year. Recent research has highlighted a potential bidirectional relationship between the gut microbiome and OUD. This emerging perspective is critical, especially as the opioid epidemic intensifies, emphasizing the need to investigate how OUD may alter gut microbiome dynamics and vice versa. Understanding these interactions could reveal new insights into the mechanisms of addiction and tolerance, as well as provide novel approaches for managing and potentially mitigating OUD impacts. This comprehensive review explores the intricate bidirectional link through the gut-brain axis, focusing on how opiates influence microbial composition, functional changes, and gut mucosal integrity. By synthesizing current findings, the review aims to inspire new strategies to combat the opioid crisis and leverage microbiome-centred interventions for preventing and treating OUD.
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Affiliation(s)
- Negin Kazemian
- School of EngineeringUniversity of British ColumbiaKelownaBritish ColumbiaCanada
| | - Sepideh Pakpour
- School of EngineeringUniversity of British ColumbiaKelownaBritish ColumbiaCanada
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9
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Singh V, Mahra K, Jung D, Shin JH. Gut Microbes in Polycystic Ovary Syndrome and Associated Comorbidities; Type 2 Diabetes, Non-Alcoholic Fatty Liver Disease (NAFLD), Cardiovascular Disease (CVD), and the Potential of Microbial Therapeutics. Probiotics Antimicrob Proteins 2024; 16:1744-1761. [PMID: 38647957 DOI: 10.1007/s12602-024-10262-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2024] [Indexed: 04/25/2024]
Abstract
Polycystic ovary syndrome (PCOS) is one of the most common endocrine anomalies among females of reproductive age, highlighted by hyperandrogenism. PCOS is multifactorial as it can be associated with obesity, insulin resistance, low-grade chronic inflammation, and dyslipidemia. PCOS also leads to dysbiosis by lowering microbial diversity and beneficial microbes, such as Faecalibacterium, Roseburia, Akkermenisa, and Bifidobacterium, and by causing a higher load of opportunistic pathogens, such as Escherichia/Shigella, Fusobacterium, Bilophila, and Sutterella. Wherein, butyrate producers and Akkermansia participate in the glucose uptake by inducing glucagon-like peptide-1 (GLP-1) and glucose metabolism, respectively. The abovementioned gut microbes also maintain the gut barrier function and glucose homeostasis by releasing metabolites such as short-chain fatty acids (SCFAs) and Amuc_1100 protein. In addition, PCOS-associated gut is found to be higher in gut-microbial enzyme β-glucuronidase, causing the de-glucuronidation of conjugated androgen, making it susceptible to reabsorption by entero-hepatic circulation, leading to a higher level of androgen in the circulatory system. Overall, in PCOS, such dysbiosis increases the gut permeability and LPS in the systemic circulation, trimethylamine N-oxide (TMAO) in the circulatory system, chronic inflammation in the adipose tissue and liver, and oxidative stress and lipid accumulation in the liver. Thus, in women with PCOS, dysbiosis can promote the progression and severity of type 2 diabetes, non-alcoholic fatty liver disease (NAFLD), and cardiovascular diseases (CVD). To alleviate such PCOS-associated complications, microbial therapeutics (probiotics and fecal microbiome transplantation) can be used without any side effects, unlike in the case of hormonal therapy. Therefore, this study sought to understand the mechanistic significance of gut microbes in PCOS and associated comorbidities, along with the role of microbial therapeutics that can ease the life of PCOS-affected women.
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Affiliation(s)
- Vineet Singh
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Kanika Mahra
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - DaRyung Jung
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea.
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10
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Choi BJ, Choi U, Ryu DB, Lee CR. PhoPQ-mediated lipopolysaccharide modification governs intrinsic resistance to tetracycline and glycylcycline antibiotics in Escherichia coli. mSystems 2024:e0096424. [PMID: 39345149 DOI: 10.1128/msystems.00964-24] [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: 07/17/2024] [Accepted: 09/08/2024] [Indexed: 10/01/2024] Open
Abstract
Tetracyclines and glycylcycline are among the important antibiotics used to combat infections caused by multidrug-resistant Gram-negative pathogens. Despite the clinical importance of these antibiotics, their mechanisms of resistance remain unclear. In this study, we elucidated a novel mechanism of resistance to tetracycline and glycylcycline antibiotics via lipopolysaccharide (LPS) modification. Disruption of the Escherichia coli PhoPQ two-component system, which regulates the transcription of various genes involved in magnesium transport and LPS modification, leads to increased susceptibility to tetracycline, minocycline, doxycycline, and tigecycline. These phenotypes are caused by enhanced expression of phosphoethanolamine transferase EptB, which catalyzes the modification of the inner core sugar of LPS. PhoPQ-mediated regulation of EptB expression appears to affect the intracellular transportation of doxycycline. Disruption of EptB increases resistance to tetracycline and glycylcycline antibiotics, whereas the other two phosphoethanolamine transferases, EptA and EptC, that participate in the modification of other LPS residues, are not associated with resistance to tetracyclines and glycylcycline. Overall, our results demonstrated that PhoPQ-mediated modification of a specific residue of LPS by phosphoethanolamine transferase EptB governs intrinsic resistance to tetracycline and glycylcycline antibiotics. IMPORTANCE Elucidating the resistance mechanisms of clinically important antibiotics helps in maintaining the clinical efficacy of antibiotics and in the prescription of adequate antibiotic therapy. Although tetracycline and glycylcycline antibiotics are clinically important in combating multidrug-resistant Gram-negative bacterial infections, their mechanisms of resistance are not fully understood. Our research demonstrates that the E. coli PhoPQ two-component system affects resistance to tetracycline and glycylcycline antibiotics by controlling the expression of phosphoethanolamine transferase EptB, which catalyzes the modification of the inner core residue of lipopolysaccharide (LPS). Therefore, our findings highlight a novel resistance mechanism to tetracycline and glycylcycline antibiotics and the physiological significance of LPS core modification in E. coli.
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Affiliation(s)
- Byoung Jun Choi
- Department of Biological Sciences, Myongji University, Yongin, Gyeonggido, Republic of Korea
| | - Umji Choi
- Department of Biological Sciences, Myongji University, Yongin, Gyeonggido, Republic of Korea
| | - Dae-Beom Ryu
- Department of Biological Sciences, Myongji University, Yongin, Gyeonggido, Republic of Korea
| | - Chang-Ro Lee
- Department of Biological Sciences, Myongji University, Yongin, Gyeonggido, Republic of Korea
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11
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Wu X, Cao Y, Liu Y, Zheng J. A New Strategy for Dietary Nutrition to Improve Intestinal Homeostasis in Diarrheal Irritable Bowel Syndrome: A Perspective on Intestinal Flora and Intestinal Epithelial Interaction. Nutrients 2024; 16:3192. [PMID: 39339792 PMCID: PMC11435304 DOI: 10.3390/nu16183192] [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: 08/22/2024] [Revised: 09/12/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Although a reasonable diet is essential for promoting human health, precise nutritional regulation presents a challenge for different physiological conditions. Irritable Bowel Syndrome (IBS) is characterized by recurrent abdominal pain and abnormal bowel habits, and diarrheal IBS (IBS-D) is the most common, seriously affecting patients' quality of life. Therefore, the implementation of precise nutritional interventions for IBS-D has become an urgent challenge in the fields of nutrition and food science. IBS-D intestinal homeostatic imbalance involves intestinal flora disorganization and impaired intestinal epithelial barrier function. A familiar interaction is evident between intestinal flora and intestinal epithelial cells (IECs), which together maintain intestinal homeostasis and health. Dietary patterns, such as the Mediterranean diet, have been shown to regulate gut flora, which in turn improves the body's health by influencing the immune system, the hormonal system, and other metabolic pathways. METHODS This review summarized the relationship between intestinal flora, IECs, and IBS-D. It analyzed the mechanism behind IBS-D intestinal homeostatic imbalance by examining the interactions between intestinal flora and IECs, and proposed a precise dietary nutrient intervention strategy. RESULTS AND CONCLUSION This increases the understanding of the IBS-D-targeted regulation pathways and provides guidance for designing related nutritional intervention strategies.
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Affiliation(s)
- Xinyu Wu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; (X.W.); (Y.C.)
| | - Yilong Cao
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; (X.W.); (Y.C.)
| | - Yixiang Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; (X.W.); (Y.C.)
| | - Jie Zheng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
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12
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Xu J, Wang N, Yang L, Zhong J, Chen M. Intestinal flora and bile acid interactions impact the progression of diabetic kidney disease. Front Endocrinol (Lausanne) 2024; 15:1441415. [PMID: 39371929 PMCID: PMC11449830 DOI: 10.3389/fendo.2024.1441415] [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: 06/25/2024] [Accepted: 09/03/2024] [Indexed: 10/08/2024] Open
Abstract
In recent years, with the rapid development of omics technologies, researchers have shown that interactions between the intestinal flora and bile acids are closely related to the progression of diabetic kidney disease (DKD). By regulating bile acid metabolism and receptor expression, the intestinal flora affects host metabolism, impacts the immune system, and exacerbates kidney injury in DKD patients. To explore interactions among the gut flora, bile acids and DKD, as well as the related mechanisms, in depth, in this paper, we review the existing literature on correlations among the gut flora, bile acids and DKD. This review also summarizes the efficacy of bile acids and their receptors as well as traditional Chinese medicines in the treatment of DKD and highlights the unique advantages of bile acid receptors in DKD treatment. This paper is expected to reveal a new and important potential strategy for the clinical treatment of DKD.
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Affiliation(s)
| | | | | | | | - Ming Chen
- Department of Nephrology, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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13
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Ma J, Wang J, Wan Y, Wang S, Jiang C. Probiotic-fermented traditional Chinese herbal medicine, a promising approach to maintaining the intestinal microecology. JOURNAL OF ETHNOPHARMACOLOGY 2024; 337:118815. [PMID: 39270882 DOI: 10.1016/j.jep.2024.118815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 08/08/2024] [Accepted: 09/09/2024] [Indexed: 09/15/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese herbal medicines (TCHM) have been extensively used in China and other East and Southeast Asian countries. Due to the low content of bioactive components in most TCHM and the potential toxicity of some herbal ingredients to humans, researchers have turned to probiotic fermentation to enhance the efficacy, mitigate the toxic or side effects and improve the taste of TCHM. Both probiotics and certain TCHM benefit the intestinal microbiota and intestinal barrier of human body, demonstrating synergistic effects on in intestinal microecology. AIM OF THE STUDY This review aims to provide an overview of the development of fermentation technology, commonly used probiotic strains for TCHM fermentation, the advantages of probiotic fermentation and the challenges and limitations of probiotic-fermented TCHM. Additionally, it summarises and discusses the impact of probiotic-fermented TCHM on the intestinal barrier and microbiota, as well as the possible mechanisms involved. MATERIALS AND METHODS An extensive search of primary literature was conducted using various databases including PubMed, Google Scholar, Web of Science, Elsevier, SpringerLink, ScienceDirect, CNKI, and others. All the plant names have been checked with World Flora Online (http://www.worldfloraonline.org) on August 7, 2024. RESULTS The literature mentioned above was analyzed and summarized comprehensively. Probiotic-fermented TCHM can improve the intestinal barrier, modulate gut microbiota, and maintain homeostasis of the intestinal microecology. Modulating intestinal microecology by probiotic-fermented TCHM may be a crucial mechanism for its beneficial effects. CONCLUSIONS This article establishes a theoretical basis for further research on the relationship between probiotic-fermented TCHM and the intestinal microecology, with the hope of inspiring innovative concepts for the development of TCHM and exploring the potential of probiotic-fermented TCHM as a promising strategy for maintaining intestinal microecological balance.
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Affiliation(s)
- Jie Ma
- Department of Pharmacy, General Hospital of Western Theater Command, Chengdu, Sichuan, 610083, PR China.
| | - Junrui Wang
- Department of Orthopaedics, Chengdu Second People's Hospital, Chengdu, Sichuan, 610017, PR China
| | - Yujun Wan
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, 611130, PR China
| | - Shihua Wang
- Department of Pharmacy, General Hospital of Western Theater Command, Chengdu, Sichuan, 610083, PR China
| | - Changqing Jiang
- Department of Pharmacy, General Hospital of Western Theater Command, Chengdu, Sichuan, 610083, PR China
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14
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Foster T, Lim P, Jones M, Wagle SR, Kovacevic B, Ionescu CM, Wong EYM, Mooranian A, Al-Salami H. Polymer-Based Nanoparticles for Inner Ear Targeted Trans Differentiation Gene Therapy. ChemMedChem 2024; 19:e202400038. [PMID: 38818625 DOI: 10.1002/cmdc.202400038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/27/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
Hearing loss is a significant disability that often goes under recognised, largely due to poor identification, prevention, and treatment. Steps are being made to amend these pitfalls in the investigation of hearing loss, however, the development of a cure to reverse advanced forms remains distant. This review details some current advances in the treatment of hearing loss, with a particular focus on genetic-based nanotechnology and how it may provide a useful avenue for further research. This review presents a broad background on the pathophysiology of hearing loss and some current interventions. We also highlight some potential genes that may be useful in the amelioration of hearing loss. Pathways of cellular differentiation from stem or supporting cell to functional hair cell are covered in detail, as this mechanism represents a key means of regenerating these cell types. Overall, we believe that polymer-based nanotechnology coupled with novel excipients represents a useful area of further research in the treatment of hearing loss, although further studies in this area are required.
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Affiliation(s)
- Thomas Foster
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
- Department of Clinical Biochemistry, Pathwest Laboratory Medicine, Royal Perth Hospital, Perth, 6000, Western Australia, Australia
| | - Patrick Lim
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
| | - Melissa Jones
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Susbin Raj Wagle
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
| | - Bozica Kovacevic
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
| | - Elaine Y M Wong
- Hearing Therapeutics Department, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands 6009, Perth, Western Australia, Australia
| | - Armin Mooranian
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
- School of Pharmacy, University of Otago, Dunedin 9016, Otago, New Zealand
| | - Hani Al-Salami
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia, Australia
- Medical School, The University of Western Australia, Crawley, 6009, Western Australia, Australia
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15
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Wu M, Cheng Y, Zhang R, Han W, Jiang H, Bi C, Zhang Z, Ye M, Lin X, Liu Z. Molecular mechanism and therapeutic strategy of bile acids in Alzheimer's disease from the emerging perspective of the microbiota-gut-brain axis. Biomed Pharmacother 2024; 178:117228. [PMID: 39088965 DOI: 10.1016/j.biopha.2024.117228] [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: 04/21/2024] [Revised: 07/19/2024] [Accepted: 07/28/2024] [Indexed: 08/03/2024] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by the accumulation of amyloid-β outside neurons and Tau protein inside neurons. Various pathological mechanisms are implicated in AD, including brain insulin resistance, neuroinflammation, and endocrinal dysregulation of adrenal corticosteroids. These factors collectively contribute to neuronal damage and destruction. Recently, bile acids (BAs), which are metabolites of cholesterol, have shown neuroprotective potential against AD by targeting the above pathological changes. BAs can enter the systematic circulation and cross the blood-brain barrier, subsequently exerting neuroprotective effects by targeting several endogenous receptors. Additionally, BAs interact with the microbiota-gut-brain (MGB) axis to improve immune and neuroendocrine function during AD episodes. Gut microbes impact BA signaling in the brain through their involvement in BA biotransformation. In this review, we summarize the role and molecular mechanisms of BAs in AD while considering the MGB axis and propose novel strategies for preventing the onset and progression of AD.
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Affiliation(s)
- Menglu Wu
- Clinical Laboratory, Shaoxing Seventh People's Hospital (Affiliated Mental Health Center, Medical College of Shaoxing University), Shaoxing, Zhejiang, China; Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China
| | - Yongyi Cheng
- Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China
| | - Ruolin Zhang
- Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China
| | - Wenwen Han
- Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China
| | - Hanqi Jiang
- Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China
| | - Chenchen Bi
- Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China
| | - Ziyi Zhang
- Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China
| | - Mengfei Ye
- Department of Psychiatry, Shaoxing Seventh People's Hospital (Affiliated Mental Health Center, Medical College of Shaoxing University), Shaoxing, Zhejiang, China
| | - Xiuqin Lin
- Clinical Laboratory, Shaoxing Seventh People's Hospital (Affiliated Mental Health Center, Medical College of Shaoxing University), Shaoxing, Zhejiang, China.
| | - Zheng Liu
- Department of Behavioral Neurosciences, Science Research Center of Medical School, Shaoxing University, Shaoxing, Zhejiang, China; Department of Pharmacology, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China.
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16
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Hu Y, Wu A, Yan H, Pu J, Luo J, Zheng P, Luo Y, Yu J, He J, Yu B, Chen D. Secondary bile acids are associated with body lipid accumulation in obese pigs. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 18:246-256. [PMID: 39281048 PMCID: PMC11402430 DOI: 10.1016/j.aninu.2024.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 02/22/2024] [Accepted: 04/03/2024] [Indexed: 09/18/2024]
Abstract
The aim of this study was to investigate the reasons for the differences in lipid accumulation between lean and obese pigs. The bile acids with varying levels within two types of pigs were found and then in vitro experiments were conducted to identify whether these bile acids can directly affect lipid accumulation. Fourteen pigs, including seven lean and seven obese pigs with body weights of approximately 80 kg, were fed the same diet at an amount approximately equivalent to 3% of their respective body weights daily for 42 d. In vitro, 3T3-L1 preadipocytes were cultured in medium with high glucose levels and were differentiated into mature adipocytes using differentiation medium. Then, bile acids were added to mature adipocytes for 4 d. The results showed that there was a difference in body lipids levels and gut microbiota composition between obese and lean pigs (P < 0.05). According to the results of gut microbial function prediction, the bile acid biosynthesis in colonic digesta of obese pigs were different from that in lean pig. Sixty-five bile acids were further screened by metabolomics, of which 4 were upregulated (P < 0.05) and 2 were downregulated (P < 0.05) in obese pigs compared to lean pigs. The results of the correlation analysis demonstrated that chenodeoxycholic acid-3-β-D-glucuronide (CDCA-3Gln) and ω-muricholic acid (ω-MCA) had a negative correlation with abdominal fat weight and abdominal fat rate, while isoallolithocholic acid (IALCA) was positively associated with crude fat in the liver and abdominal fat rate. There was a positive correlation between loin muscle area and CDCA-3Gln and ω-MCA (P < 0.05), however, IALCA and 3-oxodeoxycholic acid (3-oxo-DCA) were negatively associated with loin eye muscle area (P < 0.05). Isoallolithocholic acid increased the gene expression of peroxisome proliferator-activated receptor gamma (PPARG) and the number of lipid droplets (P < 0.05), promoting the lipid storage when IALCA was added to 3T3-L1 mature adipocytes in vitro. In conclusion, the concentration of bile acids, especially gut microbiota related-secondary bile acids, in obese pigs was different from that in lean pigs, which may contribute to lipid accumulation within obese pigs.
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Affiliation(s)
- Yaolian Hu
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Aimin Wu
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Hui Yan
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Junning Pu
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Junqiu Luo
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Ping Zheng
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Yuheng Luo
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Jie Yu
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Jun He
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Bing Yu
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
| | - Daiwen Chen
- Key Laboratory of Animal Disease-Resistant Nutrition, Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China
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17
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Gharib E, Robichaud GA. From Crypts to Cancer: A Holistic Perspective on Colorectal Carcinogenesis and Therapeutic Strategies. Int J Mol Sci 2024; 25:9463. [PMID: 39273409 PMCID: PMC11395697 DOI: 10.3390/ijms25179463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 08/19/2024] [Accepted: 08/24/2024] [Indexed: 09/15/2024] Open
Abstract
Colorectal cancer (CRC) represents a significant global health burden, with high incidence and mortality rates worldwide. Recent progress in research highlights the distinct clinical and molecular characteristics of colon versus rectal cancers, underscoring tumor location's importance in treatment approaches. This article provides a comprehensive review of our current understanding of CRC epidemiology, risk factors, molecular pathogenesis, and management strategies. We also present the intricate cellular architecture of colonic crypts and their roles in intestinal homeostasis. Colorectal carcinogenesis multistep processes are also described, covering the conventional adenoma-carcinoma sequence, alternative serrated pathways, and the influential Vogelstein model, which proposes sequential APC, KRAS, and TP53 alterations as drivers. The consensus molecular CRC subtypes (CMS1-CMS4) are examined, shedding light on disease heterogeneity and personalized therapy implications.
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Affiliation(s)
- Ehsan Gharib
- Département de Chimie et Biochimie, Université de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Gilles A Robichaud
- Département de Chimie et Biochimie, Université de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
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18
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Gonzalez E, Lee MD, Tierney BT, Lipieta N, Flores P, Mishra M, Beckett L, Finkelstein A, Mo A, Walton P, Karouia F, Barker R, Jansen RJ, Green SJ, Weging S, Kelliher J, Singh NK, Bezdan D, Galazska J, Brereton NJB. Spaceflight alters host-gut microbiota interactions. NPJ Biofilms Microbiomes 2024; 10:71. [PMID: 39209868 PMCID: PMC11362537 DOI: 10.1038/s41522-024-00545-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024] Open
Abstract
The ISS rodent habitat has provided crucial insights into the impact of spaceflight on mammals, inducing symptoms characteristic of liver disease, insulin resistance, osteopenia, and myopathy. Although these physiological responses can involve the microbiome on Earth, host-microbiota interactions during spaceflight are still being elucidated. We explore murine gut microbiota and host gene expression in the colon and liver after 29 and 56 days of spaceflight using multiomics. Metagenomics revealed significant changes in 44 microbiome species, including relative reductions in bile acid and butyrate metabolising bacteria like Extibacter muris and Dysosmobacter welbionis. Functional prediction indicate over-representation of fatty acid and bile acid metabolism, extracellular matrix interactions, and antibiotic resistance genes. Host gene expression described corresponding changes to bile acid and energy metabolism, and immune suppression. These changes imply that interactions at the host-gut microbiome interface contribute to spaceflight pathology and that these interactions might critically influence human health and long-duration spaceflight feasibility.
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Affiliation(s)
- E Gonzalez
- Microbiome Unit, Canadian Centre for Computational Genomics, Department of Human Genetics, McGill University, Montréal, Canada
- Centre for Microbiome Research, McGill University, Montréal, Canada
| | - M D Lee
- Exobiology Branch, NASA Ames Research Centre, Moffett Field, CA, USA
- Blue Marble Space Institute of Science, Seattle, WA, USA
| | - B T Tierney
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - N Lipieta
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, 02142, USA
| | - P Flores
- BioServe Space Technologies, University of Colorado Boulder, Boulder, CO, USA
| | - M Mishra
- Grossman School of Medicine, New York University, New York, USA
| | - L Beckett
- University of Nottingham, Nottingham, NG7 2RD, UK
| | - A Finkelstein
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - A Mo
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - P Walton
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - F Karouia
- Exobiology Branch, NASA Ames Research Centre, Moffett Field, CA, USA
- Blue Marble Space Institute of Science, Seattle, WA, USA
- Centre for Space Medicine, Baylor College of Medicine, Houston, TX, USA
| | - R Barker
- Blue Marble Space Institute of Science, Seattle, WA, USA
- Yuri GmbH, Wiesentalstr. 40, 88074, Meckenbeuren, Germany
- University of Wisconsin-Madison, Madison, WI, USA
| | - R J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, USA
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, USA
| | - S J Green
- Genomics and Microbiome Core Facility, Rush University Medical Centre, 1653 W. Congress Parkway, Chicago, IL, 60612, USA
| | - S Weging
- Institute of Computer Science, Martin-Luther University Halle-Wittenberg, Halle, Germany
| | - J Kelliher
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - N K Singh
- Department of Industrial Relations, Division of Occupational Safety and Health, Oakland, USA
| | - D Bezdan
- University of Wisconsin-Madison, Madison, WI, USA
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
- NGS Competence Centre Tübingen (NCCT), University of Tübingen, Tübingen, Germany
| | - J Galazska
- Space Biosciences Research Branch, NASA Ames Research Centre, Moffett Field, CA, USA
| | - N J B Brereton
- School of Biology and Environmental Science, University College Dublin, Dublin, Ireland.
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19
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Liu R, Wang J, Liu Y, Gao Y, Yang R. Regulation of gut microbiota on immune cell ferroptosis: A novel insight for immunotherapy against tumor. Cancer Lett 2024; 598:217115. [PMID: 39025428 DOI: 10.1016/j.canlet.2024.217115] [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: 02/21/2024] [Revised: 06/26/2024] [Accepted: 07/09/2024] [Indexed: 07/20/2024]
Abstract
Gut microbiota contributes to the homeostasis of immune system and is related to various diseases such as tumorigenesis. Ferroptosis, a new type of cell death, is also involved in the disease pathogenesis. Recent studies have found the correlations of gut microbiota mediated ferroptosis and immune cell death. Gut microbiota derived immunosuppressive metabolites, which can promote differentiation and function of immune cells, tend to inhibit ferroptosis through their receptors, whereas inflammatory metabolites from gut microbiota also affect the differentiation and function of immune cells and their ferroptosis. Thus, it is possible for gut microbiota to regulate immune cell ferroptosis. Indeed, gut microbiota metabolite receptor aryl hydrocarbon receptor (AhR) can affect ferroptosis of intestinal intraepithelial lymphocytes, leading to disease pathogenesis. Since immune cell ferroptosis in tumor microenvironment (TME) affects the occurrence and development of tumor, the modulation of gut microbiota in these cell ferroptosis might influence on the tumorigenesis, and also immunotherapy against tumors. Here we will summarize the recent advance of ferroptosis mediated by gut microbiota metabolites, which potentially acts as regulator(s) on immune cells in TME for therapy against tumor.
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Affiliation(s)
- Ruobing Liu
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin 300071, China
| | - Juanjuan Wang
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin 300071, China
| | - Yuqing Liu
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin 300071, China
| | - Yunhuan Gao
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin 300071, China
| | - Rongcun Yang
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China; Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin 300071, China.
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20
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Arcay R, Barceló-Nicolau M, Suárez L, Martín L, Reigada R, Höring M, Liebisch G, Garrido C, Cabot G, Vílchez H, Cortés-Lara S, González de Herrero E, López-Causapé C, Oliver A, Barceló-Coblijn G, Mena A. Gut microbiome and plasma lipidome analysis reveals a specific impact of Clostridioides difficile infection on intestinal bacterial communities and sterol metabolism. mBio 2024:e0134724. [PMID: 39189787 DOI: 10.1128/mbio.01347-24] [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: 05/08/2024] [Accepted: 07/15/2024] [Indexed: 08/28/2024] Open
Abstract
Clostridioides difficile infection (CDI) causes alterations in the intestinal microbiota, frequently associated with changes in the gut metabolism of bile acids and cholesterol. In addition to the impact on microbiome composition and given the metabolic changes occurring during CDI, our work focuses on the importance to know the effects at the local and systemic levels, both during the infection and its treatment, by paying particular attention to plasma lipid metabolism due to its relationship with CDI pathogenesis. Specific changes, characterized by a loss of microbial richness and diversity and related to a reduction in short-chain acid-producing bacteria and an increase in bile salt hydrolase-producing bacteria, were observed in the gut microbiota of CDI patients, especially in those suffering from recurrent CDI (RCDI). However, gut microbiota showed its ability to restore itself after treatment, resembling healthy individuals, in those patients treated by fecal microbiome transfer (FMT), in contrast with those treated with antibiotics, and displaying increased levels of Eubacterium coprostanoligenes, a cholesterol-reducing anaerobe. Interestingly, changes in plasma lipidome revealed a global depletion in circulating lipids in CDI, with the largest impact on cholesteryl esters. CDI patients also showed a specific and consistent decrease in the levels of lipid species containing linoleic acid-an essential fatty acid-which were only partially recovered after antibiotic treatment. Analysis of the plasma lipidome reflects CDI impact on the gut microbiota and its metabolism, evidencing changes in sterol and fatty acid metabolism that are possibly related to specific alterations observed in gut microbial communities of CDI patients. IMPORTANCE There is increasing evidence about the influence the changes in microbiota and its metabolism has on numerous diseases and infections such as Clostridioides difficile infection (CDI). The knowledge of these changes at local and systemic levels can help us manage this infection to avoid recurrences and apply the best therapies, such as fecal microbiota transfer (FMT). This study shows a better restoration of the gut in FMT-treated patients than in antibiotic-treated patients, resembling healthy controls and showing increased levels of cholesterol-reducing bacteria. Furthermore, it evidences the CDI impact on plasma lipidome. We observed in CDI patients a global depletion in circulating lipids, particularly cholesteryl esters, and a specific decrease in linoleic acid-containing lipids, an essential fatty acid. Our observations could impact CDI management because the lipid content was only partially recovered after treatment, suggesting that continued nutritional support, aiming to restore healthy lipid levels, could be essential for a full recovery.
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Affiliation(s)
- Ricardo Arcay
- Microbiology Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
| | - Maria Barceló-Nicolau
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Research Unit, University Hospital Son Espases, Palma, Balearic Islands, Spain
| | - Loreto Suárez
- Microbiology Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
| | - Luisa Martín
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Internal Medicine Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
| | - Rebeca Reigada
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Research Unit, University Hospital Son Espases, Palma, Balearic Islands, Spain
| | - Marcus Höring
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Gerhard Liebisch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, Regensburg, Bavaria, Germany
| | - Carmen Garrido
- Gastroenterology Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
| | - Gabriel Cabot
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Research Unit, University Hospital Son Espases, Palma, Balearic Islands, Spain
| | - Helem Vílchez
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Internal Medicine Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
| | - Sara Cortés-Lara
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Research Unit, University Hospital Son Espases, Palma, Balearic Islands, Spain
| | - Elisa González de Herrero
- Microbiology Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
| | - Carla López-Causapé
- Microbiology Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Research Unit, University Hospital Son Espases, Palma, Balearic Islands, Spain
| | - Antonio Oliver
- Microbiology Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Research Unit, University Hospital Son Espases, Palma, Balearic Islands, Spain
| | - Gwendolyn Barceló-Coblijn
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
- Research Unit, University Hospital Son Espases, Palma, Balearic Islands, Spain
| | - Ana Mena
- Microbiology Department, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
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Gou H, Zeng R, Lau HCH, Yu J. Gut microbial metabolites: Shaping future diagnosis and treatment against gastrointestinal cancer. Pharmacol Res 2024; 208:107373. [PMID: 39197712 DOI: 10.1016/j.phrs.2024.107373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 08/01/2024] [Accepted: 08/22/2024] [Indexed: 09/01/2024]
Abstract
Gastrointestinal cancer is a worldwide health challenge due to its dramatically increasing prevalence and as a leading cause of cancer-related mortality. Increasing evidence has illustrated the vital role of gut microbes-derived metabolites in gastrointestinal cancer progression and treatment. Microbial metabolites are produced by the gut microbiota that utilizes both extrinsic dietary components and intrinsic host-generated compounds. Meanwhile, certain categories of metabolites such as short-chain fatty acids, bile acids, tryptophan, and indole derivatives, are linked to gastrointestinal malignancy. In this review, the major classes of microbial metabolites and their impacts on various gastrointestinal cancers including colorectal cancer, gastric cancer, and hepatocellular carcinoma, have been introduced. The application of microbial metabolites as predictive biomarkers for early diagnosis and prognosis of gastrointestinal cancer has also been explored. In addition, therapeutic potential of strategies that target microbial metabolites against gastrointestinal cancer is further evaluated.
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Affiliation(s)
- Hongyan Gou
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR
| | - Ruijie Zeng
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR
| | - Harry Cheuk Hay Lau
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR.
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22
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Ng DZW, Low A, Tan AJH, Ong JH, Kwa WT, Lee JWJ, Chan ECY. Ex vivo metabolism kinetics of primary to secondary bile acids via a physiologically relevant human faecal microbiota model. Chem Biol Interact 2024; 399:111140. [PMID: 38992765 DOI: 10.1016/j.cbi.2024.111140] [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: 05/09/2024] [Revised: 06/14/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
Bile acids (BA) are synthesized in the human liver and undergo metabolism by host gut bacteria. In diseased states, gut microbial dysbiosis may lead to high primary unconjugated BA concentrations and significant perturbations to secondary BA. Hence, it is important to understand the microbial-mediated formation kinetics of secondary bile acids using physiologically relevant ex vivo human faecal microbiota models. Here, we optimized an ex vivo human faecal microbiota model to recapitulate the metabolic kinetics of primary unconjugated BA and applied it to investigate the formation kinetics of novel secondary BA metabolites and their sequential pathways. We demonstrated (1) first-order depletion of primary BA, cholic acid (CA) and chenodeoxycholic acid (CDCA), under non-saturable conditions and (2) saturable Michaelis-Menten kinetics for secondary BA metabolite formation with increasing substrate concentration. Notably, relatively lower Michaelis constants (Km) were associated with the formation of deoxycholic acid (DCA, 14.3 μM) and lithocholic acid (LCA, 140 μM) versus 3-oxo CA (>1000 μM), 7-keto DCA (443 μM) and 7-keto LCA (>1000 μM), thereby recapitulating clinically observed saturation of 7α-dehydroxylation relative to oxidation of primary BA. Congruently, metagenomics revealed higher relative abundance of functional genes related to the oxidation pathway as compared to the 7α-dehydroxylation pathway. In addition, we demonstrated gut microbial-mediated hyocholic acid (HCA) and hyodeoxycholic acid (HDCA) formation from CDCA. In conclusion, we optimized a physiologically relevant ex vivo human faecal microbiota model to investigate gut microbial-mediated metabolism of primary BA and present a novel gut microbial-catalysed two-step pathway from CDCA to HCA and, subsequently, HDCA.
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Affiliation(s)
- Daniel Zhi Wei Ng
- Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, 117543, Singapore
| | - Adrian Low
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, MD6 Centre for Translational Medicine, 14 Medical Drive, Singapore, 117599, Singapore
| | - Amanda Jia Hui Tan
- Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, 117543, Singapore
| | - Jia Hui Ong
- Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, 117543, Singapore
| | - Wit Thun Kwa
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, MD6 Centre for Translational Medicine, 14 Medical Drive, Singapore, 117599, Singapore
| | - Jonathan Wei Jie Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, MD6 Centre for Translational Medicine, 14 Medical Drive, Singapore, 117599, Singapore; Institute for Health Innovation and Technology (iHealthtech), National University of Singapore, E7, 15 Kent Ridge Crescent, Singapore, 119276, Singapore; Division of Gastroenterology & Hepatology, Department of Medicine, National University Hospital, Singapore.
| | - Eric Chun Yong Chan
- Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, 117543, Singapore.
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Sun S, Zhang G, Lv S, Sun J. Potential mechanisms of traditional Chinese medicine in the treatment of liver cirrhosis: a focus on gut microbiota. Front Microbiol 2024; 15:1407991. [PMID: 39234554 PMCID: PMC11371771 DOI: 10.3389/fmicb.2024.1407991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 07/29/2024] [Indexed: 09/06/2024] Open
Abstract
Cirrhosis, a pathological stage that develops from various chronic liver diseases, is characterized by liver fibrosis, pseudolobular formation, and chronic inflammation. When it progresses to the decompensated phase, the mortality rate of cirrhosis can reach 80%. The role of gut microbiota in the progression of liver diseases has received significant attention. Numerous studies have shown that regulating gut microbiota has significant therapeutic effects on preventing and reversing liver cirrhosis. This article reviewed the mechanisms by which gut microbiota influence liver cirrhosis, explaining the effective therapeutic effects of traditional Chinese medicine. Through multi-directional regulation involving signaling pathways, gut microbiota diversity, and restoration of intestinal barrier function, traditional Chinese medicine has been promising in ameliorating liver cirrhosis, providing treatment options and pharmacological guidance for the occurrence and development of liver cirrhosis.
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Affiliation(s)
- Siyuan Sun
- First Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China
| | - Guangheng Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shimeng Lv
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jinhui Sun
- Gastroenterology Department, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
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24
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Cheng W, Zhu N, Wang J, Yang R. A role of gut microbiota metabolites in HLA-E and NKG2 blockage immunotherapy against tumors: new insights for clinical application. Front Immunol 2024; 15:1331518. [PMID: 39229258 PMCID: PMC11368731 DOI: 10.3389/fimmu.2024.1331518] [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: 11/01/2023] [Accepted: 07/16/2024] [Indexed: 09/05/2024] Open
Abstract
One of major breakthroughs in immunotherapy against tumor is from blocking immune checkpoint molecules on tumor and reactive T cells. The development of CTLA-4 and PD-1 blockage antibodies has triggered to search for additional effective therapeutic strategies. This causes recent findings that blocking the interaction of checkpoint molecule NKG2A in NK and CD8 T cells with HLA-E in tumors is effective in defensing tumors. Interestingly, gut microbiota also affects this immune checkpoint immunotherapy against tumor. Gut microbiota such as bacteria can contribute to the regulation of host immune response and homeostasis. They not only promote the differentiation and function of immunosuppressive cells but also the inflammatory cells through the metabolites such as tryptophan (Trp) and bile acid (BA) metabolites as well as short chain fatty acids (SCFAs). These gut microbiota metabolites (GMMs) educated immune cells can affect the differentiation and function of effective CD8 and NK cells. Notably, these metabolites also directly affect the activity of CD8 and NK cells. Furthermore, the expression of CD94/NKG2A in the immune cells and/or their ligand HLA-E in the tumor cells is also regulated by gut microbiota associated immune factors. These findings offer new insights for the clinical application of gut microbiota in precise and/or personalized treatments of tumors. In this review, we will discuss the impacts of GMMs and GMM educated immune cells on the activity of effective CD8 and NK cells and the expression of CD94/NKG2A in immune cells and/or their ligand HLA-E in tumor cells.
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Affiliation(s)
- Wenyue Cheng
- Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, China
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Ningning Zhu
- Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, China
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Juanjuan Wang
- Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, China
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Rongcun Yang
- Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Nankai University, Tianjin, China
- Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
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Li W, Chen H, Tang J. Interplay between Bile Acids and Intestinal Microbiota: Regulatory Mechanisms and Therapeutic Potential for Infections. Pathogens 2024; 13:702. [PMID: 39204302 PMCID: PMC11356816 DOI: 10.3390/pathogens13080702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/30/2024] [Accepted: 08/14/2024] [Indexed: 09/04/2024] Open
Abstract
Bile acids (BAs) play a crucial role in the human body's defense against infections caused by bacteria, fungi, and viruses. BAs counteract infections not only through interactions with intestinal bacteria exhibiting bile salt hydrolase (BSH) activity but they also directly combat infections. Building upon our research group's previous discoveries highlighting the role of BAs in combating infections, we have initiated an in-depth investigation into the interactions between BAs and intestinal microbiota. Leveraging the existing literature, we offer a comprehensive analysis of the relationships between BAs and 16 key microbiota. This investigation encompasses bacteria (e.g., Clostridioides difficile (C. difficile), Staphylococcus aureus (S. aureus), Escherichia coli, Enterococcus, Pseudomonas aeruginosa, Mycobacterium tuberculosis (M. tuberculosis), Bacteroides, Clostridium scindens (C. scindens), Streptococcus thermophilus, Clostridium butyricum (C. butyricum), and lactic acid bacteria), fungi (e.g., Candida albicans (C. albicans) and Saccharomyces boulardii), and viruses (e.g., coronavirus SARS-CoV-2, influenza virus, and norovirus). Our research found that Bacteroides, C. scindens, Streptococcus thermophilus, Saccharomyces boulardii, C. butyricum, and lactic acid bacteria can regulate the metabolism and function of BSHs and 7α-dehydroxylase. BSHs and 7α-dehydroxylase play crucial roles in the conversion of primary bile acid (PBA) to secondary bile acid (SBA). It is important to note that PBAs generally promote infections, while SBAs often exhibit distinct anti-infection roles. In the antimicrobial action of BAs, SBAs demonstrate antagonistic properties against a wide range of microbiota, with the exception of norovirus. Given the intricate interplay between BAs and intestinal microbiota, and their regulatory effects on infections, we assert that BAs hold significant potential as a novel approach for preventing and treating microbial infections.
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Affiliation(s)
| | - Hui Chen
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Fudan University, 128 Ruili Road, Shanghai 200240, China;
| | - Jianguo Tang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Fudan University, 128 Ruili Road, Shanghai 200240, China;
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Wang J, Zang J, Yu Y, Liu Y, Cao H, Guo R, Zhang L, Liu M, Zhang Z, Li X, Kong L. Lingguizhugan oral solution alleviates MASLD by regulating bile acids metabolism and the gut microbiota through activating FXR/TGR5 signaling pathways. Front Pharmacol 2024; 15:1426049. [PMID: 39211777 PMCID: PMC11358101 DOI: 10.3389/fphar.2024.1426049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024] Open
Abstract
Background The preservation of the Lingguizhugan (LGZG) decoction and patient compliance issue often limit the treatment of metabolic dysfunction-associated steatotic liver disease (MASLD). Hence, herein, an LGZG oral solution was developed for alleviating MASLD. Additionally, the potential mechanisms underlying LGZG-mediated MASLD mitigation were explored. Methods A MASLD mouse model was constructed using oleic and palmitic acid-induced LO2 cells and a high-fat diet. The apoptosis, lipid deposition, and mouse liver function were analyzed to assess the therapeutic effects of the LGZG oral solution on MASLD. Serum untargeted metabolomics, gut microbiota, bile acid (BA) metabolism, immunohistochemistry, and Western blotting analyses were performed to investigate the potential mechanism of action of LGZG oral solution on MASLD. Results The LGZG oral solution ameliorated lipid deposition, oxidative stress, inflammation, and pathological damage. Serum untargeted metabolomics results revealed the LGZG-mediated regulation of the primary BA biosynthetic pathway. The 16S ribosomal RNA sequencing of the fecal microbiota showed that LGZG oral solution increased the relative abundance of the BA metabolism-associated Bacteroides, Akkermansia, and decreased that of Lactobacillus. Additionally, the BA metabolism analysis results revealed a decrease in the total taurine-α/β-muricholic acid levels, whereas those of deoxycholic acid were increased, which activated specific receptors in the liver and ileum, including farnesoid X receptor (FXR) and takeda G protein-coupled receptor 5 (TGR5). Activation of FXR resulted in an increase in short heterodimer partner and subsequent inhibition of cholesterol 7α-hydroxylase and sterol regulatory element-binding protein-1c expression, and activation of FXR also results in the upregulation of fibroblast growth factor 15/19 expression, and consequently inhibition of cholesterol 7α-hydroxylase, which correlated with hepatic BA synthesis and lipogenesis, ultimately attenuating lipid deposition and bile acid stasis, thereby improving MASLD. Conclusion Altogether, the findings of this study suggest that modulating microbiota-BA-FXR/TGR5 signaling pathway may be a potential mechanism of action of LGZG oral solution for the treatment of MASLD.
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Affiliation(s)
- Jiahua Wang
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Juan Zang
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Yang Yu
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Yang Liu
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Huimin Cao
- Key Laboratory of Ministry of Education for Traditional Chinese Medicine Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Ruibo Guo
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Lu Zhang
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Mo Liu
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Zixu Zhang
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Xuetao Li
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Liang Kong
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
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Bao S, Wang W, Deng Z, Zhou R, Zeng S, Hou D, He J, Huang Z. Changes of bacterial communities and bile acid metabolism reveal the potential "intestine-hepatopancreas axis" in shrimp. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 938:173384. [PMID: 38815838 DOI: 10.1016/j.scitotenv.2024.173384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/11/2024] [Accepted: 05/18/2024] [Indexed: 06/01/2024]
Abstract
The interaction between the gut and the liver plays a significant role in individual health and diseases. Mounting evidence supports that bile acids are important metabolites in the bidirectional communication between the gut and the liver. Most of the current studies on the "gut-liver axis" have focused on higher vertebrates, however, few was reported on lower invertebrates such as shrimp with an open circulatory system. Here, microbiomic and metabolomic analyses were conducted to investigate the bacterial composition and bile acid metabolism in intestine, hemolymph and hepatopancreas of Penaeus vannamei fed diets supplemented with octanoic acid and oleic acid. After six days of feeding, the bacterial composition in intestine, hemolymph and hepatopancreas changed at different stages, with significant increases in the relative abundance of several genera such as Pseudomonas and Rheinheimera in intestine and hepatopancreas. Notably, there was a more similar bacterial composition in intestine and hepatopancreas at the genus level, which indicated the close communication between shrimp intestine and hepatopancreas. Meanwhile, higher content of some bile acids such as lithocholic acid (LCA) and α-muricholic acid (α-MCA) in intestine and lower content of some bile acids such as taurohyocholic acids (THCA) and isolithocholic acid (IsoLCA) in hepatopancreas were detected. Furthermore, Spearman correlation analysis revealed a significant correlation between bacterial composition and bile acid metabolism in intestine and hepatopancreas. The microbial source tracking analysis showed that there was a high proportion of intestine and hepatopancreas bacterial community as the source of each other. Collectively, these results showed a strong crosstalk between shrimp intestine and hepatopancreas, which suggests a unique potential "intestine-hepatopancreas axis" in lower invertebrate shrimp with an open circulatory system. Our finding contributed to the understanding of the interplay between shrimp intestine and hepatopancreas in the view of microecology and provided new ideas for shrimp farming and disease control.
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Affiliation(s)
- Shicheng Bao
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Wenjun Wang
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Zhixuan Deng
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Renjun Zhou
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Shenzheng Zeng
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Dongwei Hou
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Jianguo He
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China; State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou 510275, China
| | - Zhijian Huang
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China; State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou 510275, China.
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Zhu G, Yan L, Fang L, Fan C, Sun H, Zhou X, Zhang Y, Shi Z. Possible immune mechanisms of gut microbiota and its metabolites in the occurrence and development of immune thrombocytopenia. Front Microbiol 2024; 15:1426911. [PMID: 39171254 PMCID: PMC11335631 DOI: 10.3389/fmicb.2024.1426911] [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: 05/02/2024] [Accepted: 07/26/2024] [Indexed: 08/23/2024] Open
Abstract
Immune thrombocytopenia (ITP) is an autoimmune disease characterized by increased platelet destruction and impaired production, leading to an elevated bleeding tendency. Recent studies have demonstrated an important link between the gut microbiota and the onset and progression of several immune diseases in humans, emphasizing that gut microbiota-derived metabolites play a non-negligible role in autoimmune diseases. The gut microbiota and its metabolites, such as short-chain fatty acids, oxidized trimethylamine, tryptophan metabolites, secondary bile acids and lipopolysaccharides, can alter intestinal barrier permeability by modulating immune cell differentiation and cytokine secretion, which in turn affects the systemic immune function of the host. It is therefore reasonable to hypothesize that ecological dysregulation of the gut microbiota may be an entirely new factor in the triggering of ITP. This article reviews the potential immune-related mechanisms of the gut microbiota and representative metabolites in ITP, as well as the important influence of leaky gut on the development of ITP, with a view to enriching the theoretical system of ITP-related gut microecology and providing new ideas for the study of ITP.
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Affiliation(s)
- Gengda Zhu
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lixiang Yan
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lijun Fang
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Institute of Hematology and Blood Diseases Hospital, National Clinical Medical Research Center for Blood Diseases, Tianjin, China
| | - Chenyang Fan
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hui Sun
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinli Zhou
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yucheng Zhang
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhexin Shi
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Luo Z, Zhou W, Xie T, Xu W, Shi C, Xiao Z, Si Y, Ma Y, Ren Q, Di L, Shan J. The role of botanical triterpenoids and steroids in bile acid metabolism, transport, and signaling: Pharmacological and toxicological implications. Acta Pharm Sin B 2024; 14:3385-3415. [PMID: 39220868 PMCID: PMC11365449 DOI: 10.1016/j.apsb.2024.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/28/2024] [Accepted: 04/22/2024] [Indexed: 09/04/2024] Open
Abstract
Bile acids (BAs) are synthesized by the host liver from cholesterol and are delivered to the intestine, where they undergo further metabolism by gut microbes and circulate between the liver and intestines through various transporters. They serve to emulsify dietary lipids and act as signaling molecules, regulating the host's metabolism and immune homeostasis through specific receptors. Therefore, disruptions in BA metabolism, transport, and signaling are closely associated with cholestasis, metabolic disorders, autoimmune diseases, and others. Botanical triterpenoids and steroids share structural similarities with BAs, and they have been found to modulate BA metabolism, transport, and signaling, potentially exerting pharmacological or toxicological effects. Here, we have updated the research progress on BA, with a particular emphasis on new-found microbial BAs. Additionally, the latest advancements in targeting BA metabolism and signaling for disease treatment are highlighted. Subsequently, the roles of botanical triterpenoids in BA metabolism, transport, and signaling are examined, analyzing their potential pharmacological, toxicological, or drug interaction effects through these mechanisms. Finally, a research paradigm is proposed that utilizes the gut microbiota as a link to interpret the role of these important natural products in BA signaling.
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Affiliation(s)
- Zichen Luo
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Children’s Health and Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Zhou
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Tong Xie
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Children’s Health and Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Weichen Xu
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Children’s Health and Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chen Shi
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Children’s Health and Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zihan Xiao
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Children’s Health and Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu Si
- Jiangsu CM Clinical Medicine Innovation Center for Obstetrics, Gynecology, and Reproduction, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210001, China
| | - Yan Ma
- National Institute of Biological Sciences, Beijing 102206, China
| | - Qingling Ren
- Jiangsu CM Clinical Medicine Innovation Center for Obstetrics, Gynecology, and Reproduction, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210001, China
| | - Liuqing Di
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jinjun Shan
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Children’s Health and Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Ding C, Wang Z, Dou X, Yang Q, Ning Y, Kao S, Sang X, Hao M, Wang K, Peng M, Zhang S, Han X, Cao G. Farnesoid X receptor: From Structure to Function and Its Pharmacology in Liver Fibrosis. Aging Dis 2024; 15:1508-1536. [PMID: 37815898 PMCID: PMC11272191 DOI: 10.14336/ad.2023.0830] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/30/2023] [Indexed: 10/12/2023] Open
Abstract
The farnesoid X receptor (FXR), a ligand-activated transcription factor, plays a crucial role in regulating bile acid metabolism within the enterohepatic circulation. Beyond its involvement in metabolic disorders and immune imbalances affecting various tissues, FXR is implicated in microbiota modulation, gut-to-brain communication, and liver disease. The liver, as a pivotal metabolic and detoxification organ, is susceptible to damage from factors such as alcohol, viruses, drugs, and high-fat diets. Chronic or recurrent liver injury can culminate in liver fibrosis, which, if left untreated, may progress to cirrhosis and even liver cancer, posing significant health risks. However, therapeutic options for liver fibrosis remain limited in terms of FDA-approved drugs. Recent insights into the structure of FXR, coupled with animal and clinical investigations, have shed light on its potential pharmacological role in hepatic fibrosis. Progress has been achieved in both fundamental research and clinical applications. This review critically examines recent advancements in FXR research, highlighting challenges and potential mechanisms underlying its role in liver fibrosis treatment.
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Affiliation(s)
- Chuan Ding
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
- Jinhua Institute, Zhejiang Chinese Medical University, Jinhua, China.
| | - Zeping Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Xinyue Dou
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Qiao Yang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Yan Ning
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Shi Kao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Xianan Sang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Min Hao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Kuilong Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Mengyun Peng
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Shuosheng Zhang
- College of Chinese Materia Medica and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong, China.
| | - Xin Han
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
- Jinhua Institute, Zhejiang Chinese Medical University, Jinhua, China.
| | - Gang Cao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
- Jinhua Institute, Zhejiang Chinese Medical University, Jinhua, China.
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Zhang H, Zhang S, Chen L, Xu R, Zhu J. LC-HRMS-based metabolomics and lipidomics analyses of a novel probiotic Akkermansia Muciniphila in response to different nutritional stimulations. J Microbiol Methods 2024; 223:106975. [PMID: 38889842 DOI: 10.1016/j.mimet.2024.106975] [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: 05/11/2024] [Revised: 06/14/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
The mucin-degrading gut commensal Akkermansia muciniphila (A. muciniphila) negatively correlates with various diseases, including metabolic disorders, neurodegenerative disorders, and cancers, through interacting with host receptors by diverse molecules. Still, their exact metabolic capability within the nutrient-rich environment (such as in the human gut) is not fully characterized. Therefore, in the present study, we investigated the comprehensive metabolome and lipidome of A. muciniphila after supplementation of four major gut microbial nutrients: mucin, inorganic salts, bile salts, and short-chain fatty acids (SCFAs). Our results showed that mucin is the predominant driver of the different lipidomic and metabolomic profiles of A. muciniphila, and it promotes the overall growth of this bacteria. While the addition of inorganic salts, bile salts, and SCFAs was found to inhibit the growth of A. muciniphila. Interestingly, inorganic salts affected the purine metabolism in A. muciniphila cultures, while adding bile salts significantly increased the production of other bile acids and N-acyl amides. Lastly, SCFAs were identified to alter the A. muciniphila energy utilization of triglycerides, fatty acyls, and phosphatidylethanolamines. To our knowledge, this is the first study to examine the comprehensive lipidome and metabolome of A. muciniphila, which highlights the importance of nutritional impacts on the lipidome and metabolome of A. muciniphila and hence providing foundational knowledge to unveil the potential effects of A. muciniphila on host health.
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Affiliation(s)
- Huan Zhang
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Shiqi Zhang
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Li Chen
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Rui Xu
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Jiangjiang Zhu
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America.
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Sun D, Xie C, Zhao Y, Liao J, Li S, Zhang Y, Wang D, Hua K, Gu Y, Du J, Huang G, Huang J. The gut microbiota-bile acid axis in cholestatic liver disease. Mol Med 2024; 30:104. [PMID: 39030473 PMCID: PMC11265038 DOI: 10.1186/s10020-024-00830-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: 03/04/2024] [Accepted: 05/07/2024] [Indexed: 07/21/2024] Open
Abstract
Cholestatic liver diseases (CLD) are characterized by impaired normal bile flow, culminating in excessive accumulation of toxic bile acids. The majority of patients with CLD ultimately progress to liver cirrhosis and hepatic failure, necessitating liver transplantation due to the lack of effective treatment. Recent investigations have underscored the pivotal role of the gut microbiota-bile acid axis in the progression of hepatic fibrosis via various pathways. The obstruction of bile drainage can induce gut microbiota dysbiosis and disrupt the intestinal mucosal barrier, leading to bacteria translocation. The microbial translocation activates the immune response and promotes liver fibrosis progression. The identification of therapeutic targets for modulating the gut microbiota-bile acid axis represents a promising strategy to ameliorate or perhaps reverse liver fibrosis in CLD. This review focuses on the mechanisms in the gut microbiota-bile acids axis in CLD and highlights potential therapeutic targets, aiming to lay a foundation for innovative treatment approaches.
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Affiliation(s)
- Dayan Sun
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Chuanping Xie
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Yong Zhao
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Junmin Liao
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Shuangshuang Li
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Yanan Zhang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Dingding Wang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Kaiyun Hua
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Yichao Gu
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Jingbin Du
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Guoxian Huang
- Department of Pediatric Surgery, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361000, China
| | - Jinshi Huang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China.
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Özçam M, Lin DL, Gupta CL, Li A, Wheatley LM, Baloh CH, Sanda S, Jones SM, Lynch SV. Enhanced Gut Microbiome Capacity for Amino Acid Metabolism is associated with Peanut Oral Immunotherapy Failure. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.07.15.24309840. [PMID: 39072014 PMCID: PMC11275660 DOI: 10.1101/2024.07.15.24309840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Peanut Oral Immunotherapy (POIT) holds promise for remission of peanut allergy, though treatment is protracted and successful in only a subset of patients. Because the gut microbiome is linked to food allergy, we sought to identify fecal microbial predictors of POIT efficacy and to develop mechanistic insights into treatment response. Longitudinal functional analysis of the fecal microbiome of children (n=79) undergoing POIT in a first double-blind, placebo-controlled clinical trial, identified five microbial-derived bile acids enriched in fecal samples prior to POIT initiation that predicted treatment efficacy (AUC 0.71). Failure to induce disease remission was associated with a distinct fecal microbiome with enhanced capacity for bile acid deconjugation, amino acid metabolism, and increased peanut peptide degradation in vitro . Thus, microbiome mechanisms of POIT failure appear to include depletion of immunomodulatory secondary bile and amino acids and the antigenic peanut peptides necessary to promote peanut allergy desensitization and remission.
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Grant ET, De Franco H, Desai MS. Non-SCFA microbial metabolites associated with fiber fermentation and host health. Trends Endocrinol Metab 2024:S1043-2760(24)00169-3. [PMID: 38991905 DOI: 10.1016/j.tem.2024.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 07/13/2024]
Abstract
Dietary fiber is degraded by commensal gut microbes to yield host-beneficial short-chain fatty acids (SCFAs), but personalized responses to fiber supplementation highlight a role for other microbial metabolites in shaping host health. In this review we summarize recent findings from dietary fiber intervention studies describing health impacts attributed to microbial metabolites other than SCFAs, particularly secondary bile acids (2°BAs), aromatic amino acid derivatives, neurotransmitters, and B vitamins. We also discuss shifts in microbial metabolism occurring through altered maternal dietary fiber intake and agricultural practices, which warrant further investigation. To optimize the health benefits of dietary fibers, it is essential to survey a range of metabolites and adapt recommendations on a personalized basis, according to the different functional aspects of the microbiome.
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Affiliation(s)
- Erica T Grant
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Hélène De Franco
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Faculty of Science, Technology, and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Mahesh S Desai
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
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Cheng Y, Wang S, Zhu W, Xu Z, Xiao L, Wu J, Meng Y, Zhang J, Cheng C. Deoxycholic acid inducing chronic atrophic gastritis with colonic mucosal lesion correlated to mucosal immune dysfunction in rats. Sci Rep 2024; 14:15798. [PMID: 38982226 PMCID: PMC11233621 DOI: 10.1038/s41598-024-66660-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 07/03/2024] [Indexed: 07/11/2024] Open
Abstract
The present study aimed to explore the underlying mechanism of bile reflux-inducing chronic atrophic gastritis (CAG) with colonic mucosal lesion. The rat model of CAG with colonic mucosal lesion was induced by free-drinking 20 mmol/L sodium deoxycholate to simulate bile reflux and 2% cold sodium salicylate for 12 weeks. In comparison to the control group, the model rats had increased abundances of Bacteroidetes and Firmicutes but had decreased abundances of Proteobacteria and Fusobacterium. Several gut bacteria with bile acids transformation ability were enriched in the model group, such as Blautia, Phascolarctobacter, and Enterococcus. The cytotoxic deoxycholic acid and lithocholic acid were significantly increased in the model group. Transcriptome analysis of colonic tissues presented that the down-regulated genes enriched in T cell receptor signaling pathway, antigen processing and presentation, Th17 cell differentiation, Th1 and Th2 cell differentiation, and intestinal immune network for IgA production in the model group. These results suggest that bile reflux-inducing CAG with colonic mucosal lesion accompanied by gut dysbacteriosis, mucosal immunocompromise, and increased gene expressions related to repair of intestinal mucosal injury.
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Affiliation(s)
- Yuqin Cheng
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Shuaishuai Wang
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Wenfei Zhu
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Zijing Xu
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Ling Xiao
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Jianping Wu
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
- Laboratory Animal Center, Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China
| | - Yufen Meng
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Junfeng Zhang
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China.
| | - Chun Cheng
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China.
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Huang Y, Xu W, Dong W, Chen G, Sun Y, Zeng X. Anti-diabetic effect of dicaffeoylquinic acids is associated with the modulation of gut microbiota and bile acid metabolism. J Adv Res 2024:S2090-1232(24)00264-9. [PMID: 38969095 DOI: 10.1016/j.jare.2024.06.027] [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: 03/30/2024] [Revised: 06/06/2024] [Accepted: 06/30/2024] [Indexed: 07/07/2024] Open
Abstract
INTRODUCTION The human gut microbiome plays a pivotal role in health and disease, notably through its interaction with bile acids (BAs). BAs, synthesized in the liver, undergo transformation by the gut microbiota upon excretion into the intestine, thus influencing host metabolism. However, the potential mechanisms of dicaffeoylquinic acids (DiCQAs) from Ilex kudingcha how to modulate lipid metabolism and inflammation via gut microbiota remain unclear. OBJECTIVES AND METHODS The objectives of the present study were to investigate the regulating effects of DiCQAs on diabetes and the potential mechanisms of action. Two mice models were utilized to investigate the anti-diabetic effects of DiCQAs. Additionally, analysis of gut microbiota structure and functions was conducted concurrently with the examination of DiCQAs' impact on gut microbiota carrying the bile salt hydrolase (BSH) gene, as well as on the enterohepatic circulation of BAs and related signaling pathways. RESULTS Our findings demonstrated that DiCQAs alleviated diabetic symptoms by modulating gut microbiota carrying the BSH gene. This modulation enhanced intestinal barrier integrity, increased enterohepatic circulation of conjugated BAs, and inhibited the farnesoid X receptor-fibroblast growth factor 15 (FGF15) signaling axis in the ileum. Consequently, the protein expression of hepatic FGFR4 fibroblast growth factor receptor 4 (FGFR4) decreased, accompanied by heightened BA synthesis, reduced hepatic BA stasis, and lowered levels of hepatic and plasma cholesterol. Furthermore, DiCQAs upregulated glucolipid metabolism-related proteins in the liver and muscle, including v-akt murine thymoma viral oncogene homolog (AKT)/glycogen synthase kinase 3-beta (GSK3β) and AMP-activated protein kinase (AMPK), thereby ameliorating hyperglycemia and mitigating inflammation through the down-regulation of the MAPK signaling pathway in the diabetic group. CONCLUSION Our study elucidated the anti-diabetic effects and mechanism of DiCQAs from I. kudingcha, highlighting the potential of targeting gut microbiota, particularly Acetatifactor sp011959105 and Acetatifactor muris carrying the BSH gene, as a therapeutic strategy to attenuate FXR-FGF15 signaling and ameliorate diabetes.
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Affiliation(s)
- Yujie Huang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China; School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Weiqi Xu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Wei Dong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Guijie Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Yi Sun
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
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Zhang D, Lv W, Xu Y, Zhang Z, Zeng S, Zhang W, Gong L, Shao L, Zhang M, He T, Liu Y, Wang Y, Liu L, Hu X. Microbial bile acid metabolite ameliorates mycophenolate mofetil-induced gastrointestinal toxicity through vitamin D3 receptor. Am J Transplant 2024; 24:1132-1145. [PMID: 38452932 DOI: 10.1016/j.ajt.2024.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 03/09/2024]
Abstract
Mycophenolate mofetil (MMF) is one of the most used immunosuppressive drugs in organ transplantation, but frequent gastrointestinal (GI) side effects through unknown mechanisms limit its clinical use. Gut microbiota and its metabolites were recently reported to play a vital role in MMF-induced GI toxicity, but the specific mechanism of how they interact with the human body is still unclear. Here, we found that secondary bile acids (BAs), as bacterial metabolites, were significantly reduced by MMF administration in the gut of mice. Microbiome data and fecal microbiota transfer model supported a microbiota-dependent effect on the reduction of secondary BAs. Supplementation of the secondary BA lithocholic acid alleviated MMF-induced weight loss, colonic inflammation, and oxidative phosphorylation damage. Genetic deletion of the vitamin D3 receptor (VDR), which serves as a primary colonic BA receptor, in colonic epithelial cells (VDRΔIEC) abolished the therapeutic effect of lithocholic acid on MMF-induced GI toxicity. Impressively, we discovered that paricalcitol, a Food and Drug Administration-approved VDR agonist that has been used in clinics for years, could effectively alleviate MMF-induced GI toxicity. Our study reveals a previously unrecognized mechanism of gut microbiota, BAs, and VDR signaling in MMF-induced GI side effects, offering potential therapeutic strategies for clinics.
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Affiliation(s)
- Di Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China
| | - Wei Lv
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yue Xu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China
| | - Zijian Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China
| | - Song Zeng
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China
| | - Weixun Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China
| | - Lian Gong
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China
| | - Limei Shao
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Min Zhang
- Department of Research Ward, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Tian He
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yingying Liu
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuxuan Wang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China
| | - Ling Liu
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Xiaopeng Hu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Institute of Urology, Capital Medical University, Beijing, China.
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Kostenko A, Zuffa S, Zhi H, Mildau K, Raffatellu M, Dorrestein PC, Aron AT. Dietary iron intake has long-term effects on the fecal metabolome and microbiome. Metallomics 2024; 16:mfae033. [PMID: 38992131 PMCID: PMC11272056 DOI: 10.1093/mtomcs/mfae033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 07/10/2024] [Indexed: 07/13/2024]
Abstract
Iron is essential for life, but its imbalances can lead to severe health implications. Iron deficiency is the most common nutrient disorder worldwide, and iron dysregulation in early life has been found to cause long-lasting behavioral, cognitive, and neural effects. However, little is known about the effects of dietary iron on gut microbiome function and metabolism. In this study, we sought to investigate the impact of dietary iron on the fecal metabolome and microbiome by using mice fed with three diets with different iron content: an iron deficient, an iron sufficient (standard), and an iron overload diet for 7 weeks. Additionally, we sought to understand whether any observed changes would persist past the 7-week period of diet intervention. To assess this, all feeding groups were switched to a standard diet, and this feeding continued for an additional 7 weeks. Analysis of the fecal metabolome revealed that iron overload and deficiency significantly alter levels of peptides, nucleic acids, and lipids, including di- and tri-peptides containing branched-chain amino acids, inosine and guanosine, and several microbial conjugated bile acids. The observed changes in the fecal metabolome persist long after the switch back to a standard diet, with the cecal gut microbiota composition and function of each group distinct after the 7-week standard diet wash-out. Our results highlight the enduring metabolic consequences of nutritional imbalances, mediated by both the host and gut microbiome, which persist after returning to the original standard diets.
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Affiliation(s)
- Anastasiia Kostenko
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO, USA
| | - Simone Zuffa
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, San Diego, CA, USA
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Hui Zhi
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Kevin Mildau
- Department of Analytical Chemistry, University of Vienna, Vienna, Austria
- Bioinformatics Group, Wageningen University & Research, Wageningen, The Netherlands
| | - Manuela Raffatellu
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
- Chiba University, UC San Diego Center for Mucosal Immunology, Allergy, and Vaccines (CU-UCSD cMAV), La Jolla, CA, USA
| | - Pieter C Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, San Diego, CA, USA
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Allegra T Aron
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, San Diego, CA, USA
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
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39
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Rodriguez Rodriguez ER, Nordvang RT, Petersson M, Rendsvig JKH, Arendrup EW, Fernández Quintero ML, Jenkins TP, Laustsen AH, Thrane SW. Fit-for-purpose heterodivalent single-domain antibody for gastrointestinal targeting of toxin B from Clostridium difficile. Protein Sci 2024; 33:e5035. [PMID: 38923049 PMCID: PMC11201815 DOI: 10.1002/pro.5035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 06/28/2024]
Abstract
Single-domain antibodies (sdAbs), such as VHHs, are increasingly being developed for gastrointestinal (GI) applications against pathogens to strengthen gut health. However, what constitutes a suitable developability profile for applying these proteins in a gastrointestinal setting remains poorly explored. Here, we describe an in vitro methodology for the identification of sdAb derivatives, more specifically divalent VHH constructs, that display extraordinary developability properties for oral delivery and functionality in the GI environment. We showcase this by developing a heterodivalent VHH construct that cross-inhibits the toxic activity of the glycosyltransferase domains (GTDs) from three different toxinotypes of cytotoxin B (TcdB) from lineages of Clostridium difficile. We show that the VHH construct possesses high stability and binding activity under gastric conditions, in the presence of bile salts, and at high temperatures. We suggest that the incorporation of early developability assessment could significantly aid in the efficient discovery of VHHs and related constructs fit for oral delivery and GI applications.
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Affiliation(s)
| | | | - Marcus Petersson
- Bactolife A/SCopenhagen EastDenmark
- Department of Biotechnology and BiomedicineTechnical University of DenmarkLyngbyDenmark
| | | | | | | | - Timothy P. Jenkins
- Department of Biotechnology and BiomedicineTechnical University of DenmarkLyngbyDenmark
| | - Andreas H. Laustsen
- Bactolife A/SCopenhagen EastDenmark
- Department of Biotechnology and BiomedicineTechnical University of DenmarkLyngbyDenmark
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40
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Mohanty I, Allaband C, Mannochio-Russo H, El Abiead Y, Hagey LR, Knight R, Dorrestein PC. The changing metabolic landscape of bile acids - keys to metabolism and immune regulation. Nat Rev Gastroenterol Hepatol 2024; 21:493-516. [PMID: 38575682 DOI: 10.1038/s41575-024-00914-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/14/2024] [Indexed: 04/06/2024]
Abstract
Bile acids regulate nutrient absorption and mitochondrial function, they establish and maintain gut microbial community composition and mediate inflammation, and they serve as signalling molecules that regulate appetite and energy homeostasis. The observation that there are hundreds of bile acids, especially many amidated bile acids, necessitates a revision of many of the classical descriptions of bile acids and bile acid enzyme functions. For example, bile salt hydrolases also have transferase activity. There are now hundreds of known modifications to bile acids and thousands of bile acid-associated genes, especially when including the microbiome, distributed throughout the human body (for example, there are >2,400 bile salt hydrolases alone). The fact that so much of our genetic and small-molecule repertoire, in both amount and diversity, is dedicated to bile acid function highlights the centrality of bile acids as key regulators of metabolism and immune homeostasis, which is, in large part, communicated via the gut microbiome.
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Affiliation(s)
- Ipsita Mohanty
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Celeste Allaband
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, CA, USA
| | - Helena Mannochio-Russo
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Yasin El Abiead
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Lee R Hagey
- Department of Medicine, University of California San Diego, San Diego, CA, USA
| | - Rob Knight
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, CA, USA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA, USA
- Department of Computer Science and Engineering, University of California San Diego, La Jolla, CA, USA
- Department of Bioengineering, University of California San Diego, La Jolla, CA, USA
| | - Pieter C Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA.
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA, USA.
- Department of Pharmacology, University of California San Diego, La Jolla, CA, USA.
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA.
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Wang Y, Wang Y, Zhao Q, Cong W, Wang N, Zhao K, Liu J, Liu X, Zhao G, Lambert H, Huang M, Wang H, Chen Y, Jiang Q. Impact of low-level exposure to antibiotics on bile acid homeostasis in adults: Implication for human safety thresholds. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116451. [PMID: 38759535 PMCID: PMC11170111 DOI: 10.1016/j.ecoenv.2024.116451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 04/25/2024] [Accepted: 05/09/2024] [Indexed: 05/19/2024]
Abstract
Bile acid homeostasis is critical to human health. Low-level exposure to antibiotics has been suggested to potentially disrupt bile acid homeostasis by affecting gut microbiota, but relevant data are still lacking in humans, especially for the level below human safety threshold. We conducted a cross-sectional study in 4247 Chinese adults by measuring 34 parent antibiotics and their metabolites from six common categories (i.e., tetracyclines, qinolones, macrolides, sulfonamides, phenicols, and lincosamides) and ten representative bile acids in fasting morning urine using liquid chromatography coupled to mass spectrometry. Daily exposure dose of antibiotics was estimated from urinary concentrations of parent antibiotics and their metabolites. Urinary bile acids and their ratios were used to reflect bile acid homeostasis. The estimated daily exposure doses (EDED) of five antibiotic categories with a high detection frequency (i.e., tetracyclines, qinolones, macrolides, sulfonamides, and phenicols) were significantly associated with urinary concentrations of bile acids and decreased bile acid ratios in all adults and the subset of 3898 adults with a cumulative ratio of antibiotic EDED to human safety threshold of less than one. Compared to a negative detection of antibiotics, the lowest EDED quartiles of five antibiotic categories and four individual antibiotics with a high detection frequency (i.e., ciprofloxacin, ofloxacin, trimethoprim, and florfenicol) in the adults with a positive detection of antibiotics had a decrease of bile acid ratio between 6.6% and 76.6%. Except for macrolides (1.2×102 ng/kg/day), the medians of the lowest EDED quartile of antibiotic categories and individual antibiotics ranged from 0.32 ng/kg/day to 10 ng/kg/day, which were well below human safety thresholds. These results suggested that low-level antibiotic exposure could disrupt bile acid homeostasis in adults and existing human safety thresholds may be inadequate in safeguarding against the potential adverse health effects of low-level exposure to antibiotics.
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Affiliation(s)
- Yuanping Wang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Yi Wang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Qi Zhao
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Wenjuan Cong
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2PS, UK
| | - Na Wang
- The People's Hospital of Pingyang, Pingyang County, Wenzhou, Zhejiang Province 325400, China
| | - Ke Zhao
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Jiaqi Liu
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Xiaohua Liu
- Minhang District Center for Disease Control and Prevention, Minhang District, Shanghai 201101, China
| | - Genming Zhao
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Helen Lambert
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2PS, UK
| | - Min Huang
- The People's Hospital of Pingyang, Pingyang County, Wenzhou, Zhejiang Province 325400, China.
| | - Hexing Wang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China.
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1G 5Z3, Canada
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
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Singh K, Aulakh SK, Nijjar GS, Singh S, Sandhu APS, Luthra S, Tanvir F, Kaur Y, Singla A, Kaur MS. Rebalancing the Gut: Glucagon-Like Peptide-1 Agonists as a Strategy for Obesity and Metabolic Health. Cureus 2024; 16:e64738. [PMID: 39156410 PMCID: PMC11329331 DOI: 10.7759/cureus.64738] [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] [Accepted: 07/17/2024] [Indexed: 08/20/2024] Open
Abstract
Obesity significantly impacts gut microbial composition, exacerbating metabolic dysfunction and weight gain. Traditional treatment methods often fall short, underscoring the need for innovative approaches. Glucagon-like peptide-1 (GLP-1) agonists have emerged as promising agents in obesity management, demonstrating significant potential in modulating gut microbiota. These agents promote beneficial bacterial populations, such as Bacteroides, Lactobacillus, and Bifidobacterium, while reducing harmful species like Enterobacteriaceae. By influencing gut microbiota composition, GLP-1 agonists enhance gut barrier integrity, reducing permeability and systemic inflammation, which are hallmarks of metabolic dysfunction in obesity. Additionally, GLP-1 agonists improve metabolic functions by increasing the production of short-chain fatty acids like butyrate, propionate, and acetate, which serve as energy sources for colonocytes, modulate immune responses, and enhance the production of gut hormones that regulate appetite and glucose homeostasis. By increasing microbial diversity, GLP-1 agonists create a more resilient gut microbiome capable of resisting pathogenic invasions and maintaining metabolic balance. Thus, by shifting the gut microbiota toward a healthier profile, GLP-1 agonists help disrupt the vicious cycle of obesity-induced gut dysbiosis and inflammation. This review highlights the intricate relationship between obesity, gut microbiota, and GLP-1 agonists, providing valuable insights into their combined role in effective obesity treatment and metabolic health enhancement.
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Affiliation(s)
| | - Smriti K Aulakh
- Internal Medicine, Sri Guru Ram Das University of Health Sciences and Research, Amritsar, IND
| | | | - Sumerjit Singh
- Internal Medicine, Government Medical College, Amritsar, IND
| | - Ajay Pal Singh Sandhu
- Internal Medicine, Sri Guru Ram Das University of Health Sciences and Research, Amritsar, IND
| | - Shivansh Luthra
- Internal Medicine, Government Medical College, Amritsar, IND
| | - Fnu Tanvir
- Internal Medicine, Government Medical College, Amritsar, IND
| | - Yasmeen Kaur
- Internal Medicine, Government Medical College, Amritsar, IND
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Wang Y, Zhang Y, Wang P, Han J, Zhang X, Shi F, Zhang Z, Guo G, Wang R, Shao D, Wu D, She J. Intestinal Colonized Silkworm Chrysalis-Like Probiotic Composites for Multi-Crossed Comprehensive Synergistic Therapy of Inflammatory Bowel Disease. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310851. [PMID: 38334256 DOI: 10.1002/smll.202310851] [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: 11/24/2023] [Revised: 01/28/2024] [Indexed: 02/10/2024]
Abstract
Inspired by the timely emergence of silkworm pupae from their cocoons, silkworm chrysalis-like probiotic composites (SCPCs) are developed for the comprehensive therapy of inflammatory bowel disease (IBD), in which probiotics are enveloped as the "pupa" in a sequential layering of silk sericin (SS), tannic acid (TA), and polydopamine, akin to the protective "cocoon". Compared to unwrapped probiotics, these composites not only demonstrate exceptional resistance to the harsh gastrointestinal environment and exhibit over 200 times greater intestinal colonization but also safeguard probiotics from the damage of IBD environment while enabling probiotics sustained release. The probiotics, in synergy with SS and TA, provide a multi-crossed comprehensive therapy for IBD that simultaneously addresses various pathological features of IBD, including intestinal barrier disruption, elevated pro-inflammatory cytokines, heightened oxidative stress, and disturbances in the intestinal microbiota. SCPCs exhibit remarkable outcomes, including a 9.7-fold reduction in intestinal permeability, an 8.9-fold decrease in IL-6 levels, and a 2.9-fold reduction in TNF-α levels compared to uncoated probiotics. Furthermore, SCPCs demonstrate an impressive 92.25% reactive oxygen species clearance rate, significantly enhance the richness of beneficial intestinal probiotics, and effectively diminish the abundance of pathogenic bacteria, indicating a substantial improvement in the overall therapeutic effect of IBD.
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Affiliation(s)
- Ya Wang
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Yujie Zhang
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Pengqian Wang
- Department of Chemical Engineering, School of Water and Environment, Chang'an University, Xi'an, 710064, P. R. China
| | - Jing Han
- Department of High Talent, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Xiaojiang Zhang
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Feiyu Shi
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Zhe Zhang
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Gang Guo
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
- Department of High Talent, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Ruochen Wang
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
| | - Dan Shao
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, P. R. China
| | - Daocheng Wu
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Junjun She
- Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
- Department of High Talent, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, P. R. China
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Li X, Yang J, Zhou X, Dai C, Kong M, Xie L, Liu C, Liu Y, Li D, Ma X, Dai Y, Sun Y, Jian Z, Guo X, Lin X, Li Y, Sun L, Liu X, Jin L, Tang H, Zheng Y, Hong S. Ketogenic diet-induced bile acids protect against obesity through reduced calorie absorption. Nat Metab 2024; 6:1397-1414. [PMID: 38937659 DOI: 10.1038/s42255-024-01072-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 05/24/2024] [Indexed: 06/29/2024]
Abstract
The low-carbohydrate ketogenic diet (KD) has long been practiced for weight loss, but the underlying mechanisms remain elusive. Gut microbiota and metabolites have been suggested to mediate the metabolic changes caused by KD consumption, although the particular gut microbes or metabolites involved are unclear. Here, we show that KD consumption enhances serum levels of taurodeoxycholic acid (TDCA) and tauroursodeoxycholic acid (TUDCA) in mice to decrease body weight and fasting glucose levels. Mechanistically, KD feeding decreases the abundance of a bile salt hydrolase (BSH)-coding gut bacterium, Lactobacillus murinus ASF361. The reduction of L. murinus ASF361 or inhibition of BSH activity increases the circulating levels of TDCA and TUDCA, thereby reducing energy absorption by inhibiting intestinal carbonic anhydrase 1 expression, which leads to weight loss. TDCA and TUDCA treatments have been found to protect against obesity and its complications in multiple mouse models. Additionally, the associations among the abovementioned bile acids, microbial BSH and metabolic traits were consistently observed both in an observational study of healthy human participants (n = 416) and in a low-carbohydrate KD interventional study of participants who were either overweight or with obesity (n = 25). In summary, we uncover a unique host-gut microbiota metabolic interaction mechanism for KD consumption to decrease body weight and fasting glucose levels. Our findings support TDCA and TUDCA as two promising drug candidates for obesity and its complications in addition to a KD.
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Affiliation(s)
- Xiao Li
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Jie Yang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Xiaofeng Zhou
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Chen Dai
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Mengmeng Kong
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Linshan Xie
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Chenglin Liu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, Shanghai, P.R. China
| | - Yilian Liu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Dandan Li
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Xiaonan Ma
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Yuxiang Dai
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Disease, Shanghai, P.R. China
| | - Yan Sun
- Masonic Medical Research Institute, Utica, NY, USA
| | - Zhijie Jian
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Xiaohuan Guo
- Institute for Immunology, Tsinghua University, Beijing, P.R. China
| | - Xu Lin
- Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, P.R. China
- Key Laboratory of Systems Biology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou, P.R. China
| | - Yixue Li
- Bio-Med Big Data Center, Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, P.R. China
- Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, P.R. China
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Liang Sun
- Department of Nutrition and Food Hygiene, School of Public Health, Institute of Nutrition, Fudan University, Shanghai, P.R. China
| | - Xin Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Global Health Institute, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Li Jin
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Huiru Tang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China
| | - Yan Zheng
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China.
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Disease, Shanghai, P.R. China.
- Ministry of Education Key Laboratory of Public Health Safety, School of Public Health, Institute of Nutrition, Fudan University, Shanghai, P.R. China.
| | - Shangyu Hong
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, P.R. China.
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Guo J, Jia P, Gu Z, Tang W, Wang A, Sun Y, Li Z. Altered gut microbiota and metabolite profiles provide clues in understanding resistant hypertension. J Hypertens 2024; 42:1212-1225. [PMID: 38690877 DOI: 10.1097/hjh.0000000000003716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
BACKGROUND Resistant hypertension is a severe phenotype in hypertension that may be driven by interactions between genetic and environmental factors. Specific changes in gut microbiota and metabolites have been shown to influence cardiovascular disease progression. However, microbial and metabolomic changes associated with resistant hypertension remain elusive. METHODS In this study, the gut microbiome of 30 participants with resistant hypertension, 30 with controlled hypertension, and 30 nonhypertension was characterized using 16S rRNA amplicon sequencing. In addition, the serum metabolome of the same population was assessed by untargeted metabolomics. RESULTS The alpha diversity of microbiome in the resistant hypertension decreased, and changes were also observed in the composition of the gut microbiota. The resistant hypertension group was characterized by elevated levels of Actinobacteitia and Proteobacteria. Twenty-three genera were found to have significantly different abundances between resistant hypertension and controlled hypertension, as well as 55 genera with significantly different abundances between resistant hypertension and nonhypertension. Compared with the controlled hypertension group, the genera Rothia and Sharpea in resistant hypertension were more abundant. Compared with the nonhypertension group, the genera Escherichia-Shigella , Lactobacillus , Enterococcus were more abundant. Untargeted metabolomics provided distinctly different serum metabolic profiles for the three groups and identified a range of differential metabolites. These metabolites were mainly associated with the pathway of glycerophospholipid metabolism. Furthermore, correlation analysis provided evidence of new interactions between gut microbiota and metabolites in the resistant hypertension. CONCLUSION In conclusion, our study provides a comprehensive understanding of the resistant hypertension gut microbiota and metabolites, suggesting that treatment resistance in resistant hypertension patients may be related to the gut microbiota and serum metabolites.
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Affiliation(s)
- Jiuqi Guo
- Department of Cardiology, the First Hospital of China Medical University, Shenyang
| | - Pengyu Jia
- Department of Cardiology, the First Hospital of China Medical University, Shenyang
| | - Zhilin Gu
- Department of Cardiology, the First Hospital of China Medical University, Shenyang
| | - Wenyi Tang
- Department of Cardiology, the First Hospital of China Medical University, Shenyang
| | - Ai Wang
- Department of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yingxian Sun
- Department of Cardiology, the First Hospital of China Medical University, Shenyang
| | - Zhao Li
- Department of Cardiology, the First Hospital of China Medical University, Shenyang
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Fiorucci S, Marchianò S, Urbani G, Di Giorgio C, Distrutti E, Zampella A, Biagioli M. Immunology of bile acids regulated receptors. Prog Lipid Res 2024; 95:101291. [PMID: 39122016 DOI: 10.1016/j.plipres.2024.101291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/30/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024]
Abstract
Bile acids are steroids formed at the interface of host metabolism and intestinal microbiota. While primary bile acids are generated in the liver from cholesterol metabolism, secondary bile acids represent the products of microbial enzymes. Close to 100 different enzymatic modifications of bile acids structures occur in the human intestine and clinically guided metagenomic and metabolomic analyses have led to the identification of an extraordinary number of novel metabolites. These chemical mediators make an essential contribution to the composition and function of the postbiota, participating to the bidirectional communications of the intestinal microbiota with the host and contributing to the architecture of intestinal-liver and -brain and -endocrine axes. Bile acids exert their function by binding to a group of cell membrane and nuclear receptors collectively known as bile acid-regulated receptors (BARRs), expressed in monocytes, tissue-resident macrophages, CD4+ T effector cells, including Th17, T regulatory cells, dendritic cells and type 3 of intestinal lymphoid cells and NKT cells, highlighting their role in immune regulation. In this review we report on how bile acids and their metabolitesmodulate the immune system in inflammations and cancers and could be exploiting for developing novel therapeutic approaches in these disorders.
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Affiliation(s)
- Stefano Fiorucci
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy.
| | - Silvia Marchianò
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
| | - Ginevra Urbani
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
| | | | - Eleonora Distrutti
- SC di Gastroenterologia ed Epatologia, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Angela Zampella
- Department of Pharmacy, University of Napoli Federico II, Napoli, Italy
| | - Michele Biagioli
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
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Zhang J, Zhang X, Liu H, Wang P, Li L, Bionaz M, Lin P, Yao J. Altered bile acid and correlations with gut microbiome in transition dairy cows with different glucose and lipid metabolism status. J Dairy Sci 2024:S0022-0302(24)00959-7. [PMID: 38908707 DOI: 10.3168/jds.2024-24658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 05/22/2024] [Indexed: 06/24/2024]
Abstract
The transition from pregnancy to lactation is critical in dairy cows. Among others, dairy cows experience a metabolic stress due to a large change in glucose and lipid metabolism. Recent studies revealed that bile acids (BA), besides being involved in both the emulsification and solubilization of fats during intestinal absorption, can also affect the metabolism of glucose and lipids, both directly or indirectly by affecting the gut microbiota. Thus, we used untargeted and targeted metabolomics and 16S rRNA sequencing approaches to investigate the concentration of plasma metabolites and BA, the composition of the rectum microbial community, and assess their interaction in transition dairy cows. In Experiment 1, we investigated BA and other blood parameters and gut microbiota in dairy cows without clinical diseases during the transition period, which can be seen as well adapted to the challenge of changed glucose and lipid metabolism. As expected, we detected an increased plasma concentration of β-hydroxybutyrate (BHBA) and nonesterified fatty acids (NEFA) but decreased concentration of glucose, cholesterol, and triglycerides (TG). Untargeted metabolomic analysis of the plasma revealed primary BA biosynthesis was one of the affected pathways, and was consistent with the increased concentration of BA in the plasma. A correlation approach revealed a complex association between BA and microbiota with the host plasma concentration of glucose and lipid metabolites. Among BA, chenodeoxycholic acid derivates such as glycolithocholic acid, taurolithocholic acid, lithocholic acid, taurochenodeoxycholic acid, and taurodeoxycholic acid were the main hub nodes connecting microbe and blood metabolites (such as glucose, TG, and NEFA). In Experiment 2, we investigated early postpartum dairy cows with or without hyperketonemia (HPK). As expected, HPK cows had increased concentration of NEFA and decreased concentrations of glucose and triglycerides. The untargeted metabolomic analysis of the plasma revealed that primary BA biosynthesis was also one of the affected pathways. Even though the BA concentration was similar among the 2 groups, the profiles of taurine conjugated BA changed significantly. A correlation analysis also revealed an association between BA and microbiota with the concentration in plasma of glucose and lipid metabolites (such as BHBA). Among BA, cholic acid and its derivates such as taurocholic acid, tauro α-muricholic acid, and taurodeoxycholic acid were the main hub nodes connecting microbe and blood metabolites. Our results indicated an association between BA, intestinal microbe, and glucose and lipid metabolism in transition dairy cows. These findings provide new insight into the adaptation mechanisms of dairy cows during the transition period.
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Affiliation(s)
- Jun Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xia Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Huifeng Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Peiyue Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lei Li
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Massimo Bionaz
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis 97331
| | - Pengfei Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Junhu Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
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48
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Trøseid M, Nielsen SD, Vujkovic-Cvijin I. Gut microbiome and cardiometabolic comorbidities in people living with HIV. MICROBIOME 2024; 12:106. [PMID: 38877521 PMCID: PMC11177534 DOI: 10.1186/s40168-024-01815-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/12/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Despite modern antiretroviral therapy (ART), people living with HIV (PLWH) have increased relative risk of inflammatory-driven comorbidities, including cardiovascular disease (CVD). The gut microbiome could be one of several driving factors, along with traditional risk factors and HIV-related risk factors such as coinfections, ART toxicity, and past immunodeficiency. RESULTS PLWH have an altered gut microbiome, even after adjustment for known confounding factors including sexual preference. The HIV-related microbiome has been associated with cardiometabolic comorbidities, and shares features with CVD-related microbiota profiles, in particular reduced capacity for short-chain fatty acid (SCFA) generation. Substantial inter-individual variation has so far been an obstacle for applying microbiota profiles for risk stratification. This review covers updated knowledge and recent advances in our understanding of the gut microbiome and comorbidities in PLWH, with specific focus on cardiometabolic comorbidities and inflammation. It covers a comprehensive overview of HIV-related and comorbidity-related dysbiosis, microbial translocation, and microbiota-derived metabolites. It also contains recent data from studies in PLWH on circulating metabolites related to comorbidities and underlying gut microbiota alterations, including circulating levels of the SCFA propionate, the histidine-analogue imidazole propionate, and the protective metabolite indole-3-propionic acid. CONCLUSIONS Despite recent advances, the gut microbiome and related metabolites are not yet established as biomarkers or therapeutic targets. The review gives directions for future research needed to advance the field into clinical practice, including promises and pitfalls for precision medicine. Video Abstract.
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Affiliation(s)
- Marius Trøseid
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.
- Section for Clinical Immunology and Infectious Diseases, Oslo University Hospital Rikshospitalet, Oslo, Norway.
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Susanne Dam Nielsen
- Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen, 2200, Denmark
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen Oe, 2100, Denmark
| | - Ivan Vujkovic-Cvijin
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Karsh Division of Gastroenterology & Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- F. Widjaja Inflammatory Bowel Disease Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Sprague KL, Rajakaruna S, Bandow B, Burchat N, Bottomley M, Sampath H, Paliy O. Gut Microbiota Fermentation of Digested Almond-Psyllium-Flax Seed-Based Artisan Bread Promotes Mediterranean Diet-Resembling Microbial Community. Microorganisms 2024; 12:1189. [PMID: 38930571 PMCID: PMC11205402 DOI: 10.3390/microorganisms12061189] [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: 05/16/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Different modifications of the standard bread recipe have been proposed to improve its nutritional and health benefits. Here, we utilized the in vitro Human Gut Simulator (HGS) to assess the fermentation of one such artisan bread by human gut microbiota. Dried and milled bread, composed of almond flour, psyllium husks, and flax seeds as its three main ingredients, was first subjected to an in vitro protocol designed to mimic human oro-gastro-intestinal digestion. The bread digest was then supplied to complex human gut microbial communities, replacing the typical Western diet-based medium (WM) of the GHS system. Switching the medium from WM to bread digest resulted in statistically significant alterations in the community structure, encoded functions, produced short-chain fatty acids, and available antioxidants. The abundances of dietary fiber degraders Enterocloster, Mitsuokella, and Prevotella increased; levels of Gemmiger, Faecalibacterium, and Blautia decreased. These community alterations resembled the previously revealed differences in the distal gut microbiota of healthy human subjects consuming typical Mediterranean vs. Western-pattern diets. Therefore, the consumption of bread high in dietary fiber and unsaturated fatty acids might recapitulate the beneficial effects of the Mediterranean diet on the gut microbiota.
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Affiliation(s)
- Kourtney L. Sprague
- Department of Biochemistry and Molecular Biology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Sumudu Rajakaruna
- Department of Biochemistry and Molecular Biology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Brant Bandow
- Department of Biochemistry and Molecular Biology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Natalie Burchat
- New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ 08901, USA
| | - Michael Bottomley
- Statistical Consulting Center, Wright State University, Dayton, OH 45435, USA
| | - Harini Sampath
- New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ 08901, USA
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ 08901, USA
| | - Oleg Paliy
- Department of Biochemistry and Molecular Biology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
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Cacciola NA, De Cicco P, Milanović M, Milovanović I, Mišan A, Kojić D, Simeunović J, Blagojević D, Popović T, Arsić A, Pilija V, Mandić A, Borrelli F, Milić N. Role of Arthrospira Platensis in Preventing and Treating High-Fat Diet-Induced Hypercholesterolemia in Adult Rats. Nutrients 2024; 16:1827. [PMID: 38931182 PMCID: PMC11206754 DOI: 10.3390/nu16121827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/30/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Hyperlipidaemia is a recognised risk factor for cardiovascular disease. In this study, the antihyperlipidaemic properties of spirulina (Arthrospira platensis, strain S2 from Serbia) were tested in adult Wistar rats before and after induction of hypercholesterolaemia by a high-fat diet (HFD) to compare the preventive with the curative effect. Total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), alanine transaminase (ALT) and aspartate transaminase (AST) levels were measured in the blood samples. The chemical composition (lipids, proteins and cholesterol) and the content of bile acids in the faeces of the animals were also analysed. Feeding rats with an atherogenic diet for 10 weeks led to the successful development of hyperlipidaemia, as serum TC and LDL-C levels as well as lipids, cholesterol and bile acids in the animals' faeces were significantly increased. Pre- and post-treatment with spirulina led to a reduction in serum LDL, TC and ALT levels. Administration of spirulina resulted in both a significant increase in primary bile acids excretion and a decrease in bile acids metabolism, with pre-treatment being more effective than post-treatment in some cases. These results suggest that increased excretion of bile acids as well as an effect on the gut microbiota may be the mechanism responsible for the anti-hyperlipidaemic activity of the tested spirulina strain.
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Affiliation(s)
- Nunzio Antonio Cacciola
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via F. Delpino 1, 80137 Naples, Italy;
| | - Paola De Cicco
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via D. Montesano, 49, 80131 Naples, Italy;
| | - Maja Milanović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia;
| | - Ivan Milovanović
- State Laboratory, Backweston Laboratory Campus, Celbridge, W23 VW2C Co. Kildare, Ireland;
| | - Aleksandra Mišan
- Institute of Food Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (A.M.); (A.M.)
| | - Danijela Kojić
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia; (D.K.); (J.S.); (D.B.)
| | - Jelica Simeunović
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia; (D.K.); (J.S.); (D.B.)
| | - Dajana Blagojević
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia; (D.K.); (J.S.); (D.B.)
| | - Tamara Popović
- Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Dr Subotića starijeg 4, 11129 Belgrade, Serbia; (T.P.); (A.A.)
| | - Aleksandra Arsić
- Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Dr Subotića starijeg 4, 11129 Belgrade, Serbia; (T.P.); (A.A.)
| | - Vladimir Pilija
- Center for Forensic Medicine, Toxicology and Molecular Genetics, Clinical Centre Vojvodina, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia;
| | - Anamarija Mandić
- Institute of Food Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (A.M.); (A.M.)
| | - Francesca Borrelli
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via D. Montesano, 49, 80131 Naples, Italy;
| | - Nataša Milić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia;
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