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Pan Q, Lv T, Xu H, Fang H, Li M, Zhu J, Wang Y, Fan X, Xu P, Wang X, Wang Q, Matsumoto H, Wang M. Gut pathobiome mediates behavioral and developmental disorders in biotoxin-exposed amphibians. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 21:100415. [PMID: 38577706 PMCID: PMC10992726 DOI: 10.1016/j.ese.2024.100415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 03/15/2024] [Accepted: 03/16/2024] [Indexed: 04/06/2024]
Abstract
Emerging evidence suggests a link between alterations in the gut microbiome and adverse health outcomes in the hosts exposed to environmental pollutants. Yet, the causal relationships and underlying mechanisms remain largely undefined. Here we show that exposure to biotoxins can affect gut pathobiome assembly in amphibians, which in turn triggers the toxicity of exogenous pollutants. We used Xenopus laevis as a model in this study. Tadpoles exposed to tropolone demonstrated notable developmental impairments and increased locomotor activity, with a reduction in total length by 4.37%-22.48% and an increase in swimming speed by 49.96%-84.83%. Fusobacterium and Cetobacterium are predominant taxa in the gut pathobiome of tropolone-exposed tadpoles. The tropolone-induced developmental and behavioral disorders in the host were mediated by assembly of the gut pathobiome, leading to transcriptome reprogramming. This study not only advances our understanding of the intricate interactions between environmental pollutants, the gut pathobiome, and host health but also emphasizes the potential of the gut pathobiome in mediating the toxicological effects of environmental contaminants.
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Affiliation(s)
- Qianqian Pan
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Tianxing Lv
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Haorong Xu
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Hongda Fang
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Meng Li
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Jiaping Zhu
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yue Wang
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoyan Fan
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Ping Xu
- Institution of Tea Science, Zhejiang University, Hangzhou, 310058, China
| | - Xiuguo Wang
- The Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Qiangwei Wang
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Haruna Matsumoto
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Mengcen Wang
- Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
- Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Global Education Program for AgriScience Frontiers, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
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Chen H, Wang SH, Li HL, Zhou XB, Zhou LW, Chen C, Mansell T, Novakovic B, Saffery R, Baker PN, Han TL, Zhang H. The attenuation of gut microbiota-derived short-chain fatty acids elevates lipid transportation through suppression of the intestinal HDAC3-H3K27ac-PPAR-γ axis in gestational diabetes mellitus. J Nutr Biochem 2024; 133:109708. [PMID: 39059479 DOI: 10.1016/j.jnutbio.2024.109708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 07/20/2024] [Accepted: 07/22/2024] [Indexed: 07/28/2024]
Abstract
Gut flora is considered to modulate lipid transport from the intestine into the bloodstream, and thus may potentially participate in the development of GDM. Although previous studies have shown that the intestinal microbiota influences lipid transport and metabolism in GDM, the precise mechanisms remain elusive. To address this, we used a high-fat diet (HFD)-induced GDM mouse model and conducted 16s rRNA sequencing and fecal metabolomics to assess gut microbial community shifts and associated metabolite changes. Western blot, ELISA, and chromatin immunoprecipitation (ChIP) were utilized to elucidate how gut microbiota affect intestinal lipid transport and the insulin sensitivity of hepatic, adipose, and skeletal muscle tissues. We found that HFD impaired the oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) in pregnant mice. 16s rRNA sequencing demonstrated profound compositional changes, especially in the relative abundances of Firmicutes and Bacteroidetes. Metabolomics analysis presented a decline in the concentration of short-chain fatty acids (SCFAs) in the GDM group. Western blot analyses showed an upregulation of HDAC3 and a concurrent reduction in H3K27 acetylation in the intestine. ChIP-qPCR showed that PPAR-γ was inhibited, which in turn activated lipid-transporter CD36. ELISA and insulin signaling pathway detection in insulin-target organs showed high concentrations of circulating fatty acids and triglycerides and insulin resistance in insulin-target organs. Our results suggest that gut microbiota is closely associated with the development of GDM, partly because decreased gut flora-associated SCFAs activate CD36 by suppressing the HDAC3-H3K27ac-PPAR-γ axis to transport excessive fatty acids and triglycerides into blood circulation, thereby dysregulating the insulin sensitivity of insulin target organs.
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Affiliation(s)
- Hao Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China; Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Shi-Han Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China; Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Hong-Li Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
| | - Xiao-Bo Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
| | - Lin-Wei Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
| | - Chang Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China; Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Toby Mansell
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Boris Novakovic
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Richard Saffery
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Philip N Baker
- Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China; College of Life Sciences, University of Leicester, Great Britain, UK
| | - Ting-Li Han
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Hua Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.
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Liu D, Zhan J, Wang S, Chen L, Zhu Q, Nie R, Zhou X, Zheng W, Luo X, Wang B, Nie J, Ye X. Chrysanthemum morifolium attenuates metabolic and alcohol-associated liver disease via gut microbiota and PPARα/γ activation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155774. [PMID: 38820659 DOI: 10.1016/j.phymed.2024.155774] [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: 03/10/2024] [Revised: 05/06/2024] [Accepted: 05/22/2024] [Indexed: 06/02/2024]
Abstract
BACKGROUND Metabolic and alcohol-associated liver disease (MetALD) shows a high prevalence rate in liver patients, but there is currently no effective treatment for MetALD. As a typical edible traditional Chinese medicinal herb, the anti-inflammatory, antioxidant, and hepatoprotective properties of water extract of Chrysanthemum morifolium Ramat. (WECM) has been demonstrated. However, its therapeutic effect on MetALD and the associated mechanisms remain unclear. PURPOSE To investigate the underlying mechanisms of WECM against MetALD. METHODS We constructed a MetALD rat model following a high-fat & high-sucrose plus alcohol diet (HFHSAD). MetALD rats were treated with WECM at 2.1, 4.2, and 8.4 g/kg/d for six weeks. Efficacy was determined, and pathways associated with WECM against MetALD were predicted through serum and hepatic biochemical marker measurement, histopathological section analysis, 16S rDNA sequencing of the gut microbiota and untargeted serum metabolomics analyses. Changes in genes and proteins in the peroxisome proliferator-activated receptor alpha (PPARα) and gamma (PPARγ) signaling pathways were detected by RT‒PCR and Western blotting. RESULTS WECM treatment significantly attenuated hepatic steatosis, hyperlipidemia and markers of liver injury in MetALD rats. Moreover, WECM improved vascular endothelial function, hypertension, and systematic oxidative stress. Mechanistically, WECM treatment altered the overall structure of the gut microbiota through maintaining Firmicutes/Bacteroidota ratio and reducing harmful bacterial abundances such as Clostridium, Faecalibaculum, and Herminiimonas. Notably, WECM promoted 15-deoxy-△12, 14-prostaglandin J2 (15d-PGJ2) release and further activated the PPARγ to reduce serum TNF-α, IL-1β, and IL-6 levels. Additionally, WECM upregulated PPARα and downregulated the levels of CD36 and FABP4 to improve lipid metabolism. CONCLUSION Our findings provide the first evidence that WECM treatment significantly improved hepatic steatosis, oxidative stress and inflammation in MetALD rats by regulating the gut microbiota and activating the 15d-PGJ2/PPARγ and PPARα signaling pathway.
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Affiliation(s)
- Dan Liu
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China; Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan 430065, China.
| | - Jianting Zhan
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Shiqin Wang
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Lvyi Chen
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Qianqian Zhu
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Ruili Nie
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Xuxiang Zhou
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Wuyinxiao Zheng
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Xin Luo
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Bo Wang
- Key Laboratory of Chinese Medicine Quality Control of State Drug Administration, Hubei Institute for Drug Control, Wuhan 430075, China
| | - Jing Nie
- Hubei Center for ADR Monitoring, Wuhan 430071, China
| | - Xiaochuan Ye
- Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China; Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan 430065, China.
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Eraqi WA, El-Sabbagh WA, Aziz RK, Elshahed MS, Youssef NH, Elkenawy NM. Gastroprotective and microbiome-modulating effects of ubiquinol in rats with radiation-induced enteropathy. Anim Microbiome 2024; 6:40. [PMID: 39030597 PMCID: PMC11264694 DOI: 10.1186/s42523-024-00320-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 06/02/2024] [Indexed: 07/21/2024] Open
Abstract
Radiation enteritis is a frequently encountered issue for patients receiving radiotherapy and has a significant impact on cancer patients' quality of life. The gut microbiota plays a pivotal role in intestinal function, yet the impact of irradiation on gut microorganisms is not fully understood. This study explores the gastroprotective effect and gut microbiome-modulating potential of ubiquinol (Ubq), the reduced form of the powerful antioxidant CoQ-10. For this purpose, male albino rats were randomly assigned to four groups: Control, IRR (acute 7 Gy γ-radiation), Ubq_Post (Ubq for 7 days post-irradiation), and Ubq_Pre/Post (Ubq for 7 days pre and 7 days post-irradiation). The fecal microbiomes of all groups were profiled by 16S rRNA amplicon sequencing followed by bioinformatics and statistical analysis. Histopathological examination of intestinal tissue indicated severe damage in the irradiated group, which was mitigated by ubiquinol with enhanced regeneration, goblet cells, and intestinal alkaline phosphatase expression. Compared to the irradiated group, the Ubq-treated groups had a significant recovery of intestinal interleukin-1β, caspase-3, nitric oxide metabolites, and thio-barbituric reactive substances to near-healthy levels. Ubq_Pre/Post group displayed elevated peroxisome proliferator-activated receptor (PPAR-γ) level, suggesting heightened benefits. Serum insulin reduction in irradiated rats improved post-Ubq treatment, with a possible anti-inflammatory effect on the pancreatic tissue. Fecal microbiota profiling revealed a dysbiosis state with a reduction of bacterial diversity post-irradiation, which was re-modulated in the Ubq treated groups to profiles that are indistinguishable from the control group. These findings underscore Ubq's gastroprotective effects against radiation-induced enteritis and its potential in restoring the gut microbiota's diversity and balance.
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Affiliation(s)
- Walaa A Eraqi
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
| | - Walaa A El-Sabbagh
- Drug Radiation Research Department, National Center of Radiation and Research Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, 11787, Egypt
| | - Ramy K Aziz
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
- Microbiology and Immunology Research Program, Children's Cancer Hospital Egypt 57357, Cairo, 11617, Egypt
| | - Mostafa S Elshahed
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, 74074, USA
| | - Noha H Youssef
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, 74074, USA
| | - Nora M Elkenawy
- Drug Radiation Research Department, National Center of Radiation and Research Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, 11787, Egypt.
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Cheong KL, Liu K, Chen W, Zhong S, Tan K. Recent progress in Porphyra haitanensis polysaccharides: Extraction, purification, structural insights, and their impact on gastrointestinal health and oxidative stress management. Food Chem X 2024; 22:101414. [PMID: 38711774 PMCID: PMC11070828 DOI: 10.1016/j.fochx.2024.101414] [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: 03/19/2024] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 05/08/2024] Open
Abstract
Porphyra haitanensis, a red seaweed species, represents a bountiful and sustainable marine resource. P. haitanensis polysaccharide (PHP), has garnered considerable attention for its numerous health benefits. However, the comprehensive utilization of PHP on an industrial scale has been limited by the lack of comprehensive information. In this review, we endeavor to discuss and summarize recent advancements in PHP extraction, purification, and characterization. We emphasize the multifaceted mechanisms through which PHP promotes gastrointestinal health. Furthermore, we present a summary of compelling evidence supporting PHP's protective role against oxidative stress. This includes its demonstrated potent antioxidant properties, its ability to neutralize free radicals, and its capacity to enhance the activity of antioxidant enzymes. The information presented here also lays the theoretical groundwork for future research into the structural and functional aspects of PHP, as well as its potential applications in functional foods.
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Affiliation(s)
- Kit-Leong Cheong
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Prefabricated Seafood Processing and Quality Control, Zhanjiang 524088, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Keying Liu
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Prefabricated Seafood Processing and Quality Control, Zhanjiang 524088, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Wenting Chen
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Prefabricated Seafood Processing and Quality Control, Zhanjiang 524088, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Saiyi Zhong
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Prefabricated Seafood Processing and Quality Control, Zhanjiang 524088, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Karsoon Tan
- Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf University, Qinzhou, Guangxi, China
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Liu Z, Chen H, Ning X, Li J, Pan L. Oxymatrine and Gut Microbiota Modulation: A Potential Therapeutic Strategy for Bone Cancer Pain Management. THE JOURNAL OF PAIN 2024:104588. [PMID: 38844152 DOI: 10.1016/j.jpain.2024.104588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/11/2024] [Accepted: 05/30/2024] [Indexed: 08/09/2024]
Abstract
Chronic pain often coincides with changes in gut microbiota composition. Yet, the role of gut microbiota in bone cancer pain (BCP) is still not fully understood. This study investigated the role of gut microbiota in BCP and the effect of oxymatrine (OMT) on gut microbiota in BCP. A BCP mice model was developed to assess gut microbiota composition, serum and brain tissue butyric acid levels, and blood-brain barrier (BBB) permeability. Microbiota transplantation was used to restore gut microbiota, and the effect of Clostridium butyricum or sodium butyrate (NaB) supplementation on pain-related behaviors and BBB integrity was evaluated. The potential benefits of OMT on gut microbiota composition, peroxisome proliferator-activated receptor gamma (PPARγ)/cyclooxygenase-2 (COX-2) signaling, BBB integrity, and pain-related behaviors were also explored. BCP significantly altered gut microbiota composition and reduced serum and brain tissue butyric acid levels. Additionally, BBB permeability increased considerably in the BCP group compared with sham and control mice. Microbiota transplantation, as well as C butyricum or NaB supplementation, ameliorated pain-related behaviors and BBB integrity; the supplementation of C butyricum or NaB boosted brain-tight-junction protein expression, potentially through modulating PPARγ/COX-2 signaling. OMT influenced gut microbiota composition and regulated PPARγ/COX-2 signaling in the BCP model, improving pain-related behaviors and BBB integrity. BCP affects gut microbiota composition and butyric acid levels. Modulating gut microbiota and butyric acid levels through transplantation or supplementation may alleviate BCP. OMT shows potential as a treatment by altering gut microbiota composition and regulating PPARγ/COX-2 signaling. These findings provide new insights into BCP pathophysiology and possible treatments. PERSPECTIVE: This study explores the impact of gut microbiota on BCP. Microbiota transplantation alleviates BCP and enhances BBB integrity. Also, C butyricum or NaB improves BBB via PPARγ/COX-2. OMT, a BCP treatment, modifies microbiota by regulating PPARγ/COX-2, in turn improving pain and BBB integrity. These findings suggest a therapeutic approach, emphasizing clinical relevance in targeting gut microbiota and restoring butyric acid levels.
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Affiliation(s)
- Zhen Liu
- Department of Anesthesiology, Guangxi Medical University Cancer Hospital, Nanning, China; Guangxi Engineering Research Center for Tissue & Organ Injury and Repair Medicine, Nanning, China; Guangxi Health Commission Key Laboratory of Basic Science and Prevention of Perioperative Organ Disfunction, Nanning, China
| | - Haishao Chen
- Department of Anesthesiology, Guangxi Medical University Cancer Hospital, Nanning, China; Guangxi Engineering Research Center for Tissue & Organ Injury and Repair Medicine, Nanning, China; Guangxi Health Commission Key Laboratory of Basic Science and Prevention of Perioperative Organ Disfunction, Nanning, China
| | - Xing Ning
- Department of Anesthesiology, Guangxi Medical University Cancer Hospital, Nanning, China; Guangxi Engineering Research Center for Tissue & Organ Injury and Repair Medicine, Nanning, China; Guangxi Health Commission Key Laboratory of Basic Science and Prevention of Perioperative Organ Disfunction, Nanning, China
| | - Junda Li
- Department of Anesthesiology, Guangxi Medical University Cancer Hospital, Nanning, China; Guangxi Engineering Research Center for Tissue & Organ Injury and Repair Medicine, Nanning, China; Guangxi Health Commission Key Laboratory of Basic Science and Prevention of Perioperative Organ Disfunction, Nanning, China
| | - Linghui Pan
- Department of Anesthesiology, Guangxi Medical University Cancer Hospital, Nanning, China; Guangxi Engineering Research Center for Tissue & Organ Injury and Repair Medicine, Nanning, China; Guangxi Health Commission Key Laboratory of Basic Science and Prevention of Perioperative Organ Disfunction, Nanning, China.
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7
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Salsinha AS, Cima A, Araújo-Rodrigues H, Viana S, Reis F, Coscueta ER, Rodríguez-Alcalá LM, Relvas JB, Pintado M. The use of an in vitro fecal fermentation model to uncover the beneficial role of omega-3 and punicic acid in gut microbiota alterations induced by a Western diet. Food Funct 2024; 15:6095-6117. [PMID: 38757812 DOI: 10.1039/d4fo00727a] [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: 05/18/2024]
Abstract
The influence of gut microbiota in the onset and development of several metabolic diseases has gained attention over the last few years. Diet plays an essential role in gut microbiota modulation. Western diet (WD), characterized by high-sugar and high-fat consumption, alters gut microbiome composition, diversity index, microbial relative levels, and functional pathways. Despite the promising health effects demonstrated by polyunsaturated fatty acids, their impact on gut microbiota is still overlooked. The effect of Fish oil (omega-3 source) and Pomegranate oil (punicic acid source), and a mixture of both oils in gut microbiota modulation were determined by subjecting the oil samples to in vitro fecal fermentations. Cecal samples from rats from two different dietary groups: a control diet (CD) and a high-fat high-sugar diet (WD), were used as fecal inoculum. 16S amplicon metagenomics sequencing showed that Fish oil + Pomegranate oil from the WD group increased α-diversity. This sample can also increase the relative abundance of the Firmicutes and Bacteroidetes phylum as well as Akkermansia and Blautia, which were affected by the WD consumption. All samples were able to increase butyrate and acetate concentration in the WD group. Moreover, tyrosine concentrations, a precursor for dopamine and norepinephrine, increase in the Fish oil + Pomegranate oil WD sample. GABA, an important neurotransmitter, was also increased in WD samples. These results suggest a potential positive impact of these oils' mixture on gut-brain axis modulation. It was demonstrated, for the first time, the great potential of using a mixture of both Fish and Pomegranate oil to restore the gut microbiota changes associated with WD consumption.
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Affiliation(s)
- Ana Sofia Salsinha
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina -Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal.
- Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto - Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - André Cima
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina -Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal.
| | - Helena Araújo-Rodrigues
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina -Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal.
- Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto - Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Sofia Viana
- Coimbra Institute of Clinical and Biomedical Research (iCBR), Faculty of Medicine and Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra, Coimbra, Portugal
- Instituto Politécnico de Coimbra, Escola Superior de Tecnologia da Saúde de Coimbra, Rua 5 de Outubro - S. Martinho Bispo, Apartado 7006, 3046-854 Coimbra, Portugal
| | - Flávio Reis
- Coimbra Institute of Clinical and Biomedical Research (iCBR), Faculty of Medicine and Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra, Coimbra, Portugal
| | - Ezequiel R Coscueta
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina -Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal.
| | - Luis Miguel Rodríguez-Alcalá
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina -Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal.
| | - João B Relvas
- Instituto de Investigação e Inovação em Saúde and Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto - Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- Departmento de Biomedicina, Faculdade de Medicina da Universidade do Porto (FMUP), 4200-319 Porto, Portugal
| | - Manuela Pintado
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina -Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal.
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Huang Y, Chen Y, Xie H, Feng Y, Chen S, Bao B. Effects of Inducible Nitric Oxide Synthase (iNOS) Gene Knockout on the Diversity, Composition, and Function of Gut Microbiota in Adult Zebrafish. BIOLOGY 2024; 13:372. [PMID: 38927252 PMCID: PMC11201229 DOI: 10.3390/biology13060372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/21/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024]
Abstract
The gut microbiota constitutes a complex ecosystem that has an important impact on host health. In this study, genetically engineered zebrafish with inducible nitric oxide synthase (iNOS or NOS2) knockout were used as a model to investigate the effects of nos2a/nos2b gene single knockout and nos2 gene double knockout on intestinal microbiome composition and function. Extensive 16S rRNA sequencing revealed substantial changes in microbial diversity and specific taxonomic abundances, yet it did not affect the functional structure of the intestinal tissues. Notably, iNOS-deficient zebrafish demonstrated a decrease in Vibrio species and an increase in Aeromonas species, with more pronounced effects observed in double knockouts. Further transcriptomic analysis of the gut in double iNOS knockout zebrafish indicated significant alterations in immune-related and metabolic pathways, including the complement and PPAR signaling pathways. These findings underscore the crucial interplay between host genetics and gut microbiota, indicating that iNOS plays a key role in modulating the gut microbial ecology, host immune system, and metabolic responses.
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Affiliation(s)
- Yajuan Huang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; (Y.H.); (Y.C.); (H.X.); (Y.F.)
| | - Yadong Chen
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; (Y.H.); (Y.C.); (H.X.); (Y.F.)
- National Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Haisheng Xie
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; (Y.H.); (Y.C.); (H.X.); (Y.F.)
| | - Yidong Feng
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; (Y.H.); (Y.C.); (H.X.); (Y.F.)
| | - Songlin Chen
- National Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Baolong Bao
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; (Y.H.); (Y.C.); (H.X.); (Y.F.)
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9
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Wei X, Liang J, Liu J, Dai Y, Leng X, Cheng Y, Chi L. Anchang Yuyang Decoction inhibits experimental colitis-related carcinogenesis by regulating PPAR signaling pathway and affecting metabolic homeostasis of host and microbiota. JOURNAL OF ETHNOPHARMACOLOGY 2024; 326:117995. [PMID: 38428656 DOI: 10.1016/j.jep.2024.117995] [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: 01/22/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Inflammatory bowel disease (IBD) presents a risk of carcinogenesis, which escalates with the duration of IBD. Persistent histological inflammation is considered to be the driving factor of colitis carcinogenesis. Effective control of inflammation is helpful to prevent and treat colitis-related colorectal cancer (CAC). Anchang Yuyang Decoction (AYD), a traditional Chinese medicine (TCM) formula, is originated from the ancient prescription of TCM for treating colitis and colorectal cancer. AYD has demonstrated efficacy in treating IBD and potential anti-carcinogenic properties. AIM OF THE STUDY This research aims to assess the therapeutic efficacy of AYD in ameliorating experimental colitis-related carcinogenesis induced by AOM/DSS. It further seeks to elucidate its potential mechanisms by integrating multiple omics sequencing approaches. MATERIALS AND METHODS A rat model for colitis-related carcinogenesis was developed using azoxymethane (AOM)/dextran sulfate sodium (DSS). UPLC-MS identified AYD's chemical constituents. Rats were administered varying doses of AYD (18.37, 9.19 and 4.59 g/kg) orally for 53 days, with mesalazine as a positive control. The study evaluated anti-carcinogenic effects by examining adenoma number, adenoma load, abnormal crypt foci (ACF), histopathological damage, and tumor-related protein expression. Anti-inflammatory and reparative effects were assessed through body weight, disease activity index (DAI), colon length, spleen index, inflammatory cytokine levels, and tight junction protein expression. The effects on intestinal microbiota and host metabolism were explored through 16S rRNA sequencing, targeted short-chain fatty acid (SCFA) metabonomics, and non-targeted colon metabolomics. Potential AYD targets were identified through transcriptomic sequencing and validated by qRT-PCR and western blotting. RESULTS AYD significantly reduced adenoma number, adenoma load, neoplasm-associated lesions, ACF, and tumor-related protein expression (e.g., p53, PCNA) in AOM/DSS-induced rats, thus impeding colitis-related carcinogenesis progression. AYD also alleviated histopathological damage and inflammation, promoting intestinal mucosal barrier repair. Furthermore, AYD modulated intestinal flora structure, enhanced SCFA production, and regulated colon metabolites. Transcriptomic sequencing revealed a significant impact on the peroxisome proliferator-activated receptor (PPAR) signaling pathway. Subsequent qRT-PCR and western blotting experiments indicated AYD's influence in up-regulating PPAR-γ and down-regulating PPAR-α, PPAR-β/δ, and related proteins (thrombomodulin [Thbd], fatty acid binding protein 5 [Fabp5], stearoyl-CoA desaturase 2 [Scd2], phospholipid transfer protein [Pltp]). CONCLUSIONS This study demonstrates AYD's ability to inhibit experimental colitis-related carcinogenesis induced by AOM/DSS. Its mechanism likely involves modulation of the PPAR signaling pathway, impacting intestinal microbiota and host metabolic equilibrium.
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Affiliation(s)
- Xiunan Wei
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
| | - Junwei Liang
- Department of Gastroenterology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
| | - Jiahui Liu
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
| | - Yonggang Dai
- Department of Clinical Laboratory Medicine, Shandong Provincial Third Hospital, Jinan, 250014, China.
| | - Xiaohui Leng
- Department of Cardiovascular Medicine, Weifang Traditional Chinese Hospital, Weifang, 261000, China.
| | - Yan Cheng
- Department of Gastroenterology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
| | - Lili Chi
- Department of Gastroenterology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
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10
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Tang S, Dong X, Ma Y, Zhou H, He Y, Ren D, Li X, Cai Y, Wang Q, Wu L. Highly crystalline cellulose microparticles from dealginated seaweed waste ameliorate high fat-sugar diet-induced hyperlipidemia in mice by modulating gut microbiota. Int J Biol Macromol 2024; 263:130485. [PMID: 38423434 DOI: 10.1016/j.ijbiomac.2024.130485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/10/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
The effects of seaweed cellulose (SC) on high fat-sugar diet (HFSD)-induced glucolipid metabolism disorders in mice and potential mechanisms were investigated. SC was isolated from dealginated residues of giant kelp (Macrocystis pyrifera), with a crystallinity index of 85.51 % and an average particle size of 678.2 nm. Administering SC to C57BL/6 mice at 250 or 500 mg/kg BW/day via intragastric gavage for six weeks apparently inhibited the development of HFSD-induced obesity, dyslipidemia, insulin resistance, oxidative stress and liver damage. Notably, SC intervention partially restored the structure and composition of the gut microbiota altered by the HFSD, substantially lowering the Firmicutes to Bacteroidetes ratio, and greatly increasing the relative abundance of Lactobacillus, Bifidobacterium, Oscillospira, Bacteroides and Akkermansia, which contributed to improved short-chain fatty acid (SCFA) production. Supplementing with a higher dose of SC led to more significant increases in total SCFA (67.57 %), acetate (64.56 %), propionate (73.52 %) and butyrate (66.23 %) concentrations in the rectal contents of HFSD-fed mice. The results indicated that highly crystalline SC microparticles could modulate gut microbiota dysbiosis and ameliorate HFSD-induced obesity and related metabolic syndrome in mice. Furthermore, particle size might have crucial impact on the prebiotic effects of cellulose as insoluble dietary fiber.
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Affiliation(s)
- Shiying Tang
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Xiuyu Dong
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Yueyun Ma
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Hui Zhou
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Yunhai He
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Dandan Ren
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Xiang Li
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Yidi Cai
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Qiukuan Wang
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Long Wu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
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11
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Zeng C, Chen H, Cao T, Wang L, Jiao S, Lin C, Zhang B, Cai H. B-GOS alleviates olanzapine-induced lipid disturbances in mice by enriching Akkermansia and upregulation of PGRMC1-Wnt signaling. Food Chem Toxicol 2024; 185:114490. [PMID: 38325638 DOI: 10.1016/j.fct.2024.114490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 12/24/2023] [Accepted: 01/26/2024] [Indexed: 02/09/2024]
Abstract
Although olanzapine (OLZ) remains one of the most efficacious antipsychotic medications for the treatment of schizophrenia, there are significant tolerability issues related to its metabolic profile such as weight gain and dyslipidemia. Our previous studies have demonstrated that progesterone receptor membrane component 1 (PGRMC1) plays a key role in antipsychotic-induced metabolic side effects. Prebiotics showed positive effects on lipid metabolism, however, limited studies focused on their therapeutic potential and mechanisms in treating antipsychotic-induced lipid metabolic disorders. Herein, our study aims to explore the effects of the prebiotic B-GOS on lipid disturbances induced by OLZ and elucidate its underlying mechanisms via PGRMC1 pathway. In an 8-week study, long-term intraperitoneal administration of OLZ at a dosage of 8 mg/kg/day in mice induced lipid disturbances as manifested by significantly increased lipid indexes in plasma and liver. B-GOS effectively alleviated the OLZ-induced abnormal lipid metabolism by enhancing the diversity of the gut microbiota, with a 100-fold increase in Akkermansia abundance and a 10-fold decrease in Faecalibaculum abundance. Followed by the B-GOS related changes of gut microbiota, OLZ-induced substantial hepatic inhibition of PGRMC1, and associated protein factors of Wnt signaling pathway (Wnt3a, β-catenin, and PPAR-γ) were reversed without affecting plasma levels of short-chain fatty acids. Taken together, prebiotics like B-GOS enriching Akkermansia offer a promising novel approach to alleviate antipsychotic-induced lipid disturbances by modulating the PGRMC1-Wnt signaling pathway.
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Affiliation(s)
- Cuirong Zeng
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China; National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China
| | - Hui Chen
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China; National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China
| | - Ting Cao
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China; National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China
| | - Liwei Wang
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China
| | - Shimeng Jiao
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China
| | - Chenquan Lin
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China
| | - Bikui Zhang
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China
| | - Hualin Cai
- Department of Pharmacy and Institute of Clinical Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China; National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China; International Research Center for Precision Medicine, Transformative Technology and Software Services, Hunan, China.
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12
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Ke W, Flay KJ, Huang X, Hu X, Chen F, Li C, Yang DA. Polysaccharides from Platycodon grandiflorus attenuates high-fat diet induced obesity in mice through targeting gut microbiota. Biomed Pharmacother 2023; 166:115318. [PMID: 37572640 DOI: 10.1016/j.biopha.2023.115318] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/14/2023] Open
Abstract
The root of Platycodon grandiflorus (PG), abundant in soluble polysaccharides, has a long history in traditional Asian diets and herbal medicine due to its anti-inflammatory activity and anti-obesity effects. Our previous study was the first to establish a link between the beneficial effects of PG and changes in the gut microbiota, and suggested potential roles that the polysaccharide components play. However, more evidence was needed to understand the anti-obesity functions of polysaccharides from PG (PS) and their relationship with the regulation of the gut microbiota. In this study, we first performed an experiment to explore the anti-obesity activities of PS: Male C57BL/6 mice (six-weeks-old) were fed either a standard control diet (CON), or a high-fat diet (HFD) to induce obesity, or a HFD supplemented with PS (HFPS) for 8 weeks. Body weight and food intake were monitored throughout. Lipid metabolism were determined and related gene expression changes in adipose tissues were analyzed by RNA-seq. Amplicon sequencing of the bacterial 16 S rRNA gene was used to explore gut microbiota structure in fecal samples. Then, we performed the second experiment to explore whether the anti-obesity activities of PS were dependent on the regulation of the gut microbiota: Male C57BL/6 mice (six-weeks-old), treated with an antibiotic cocktail to reduce the gut microbial load, were fed either a HFD (A-HFD) or a HFPS (A-HFPS) diet for 8 weeks. Finally, we used in vitro fermentation experiments to verify the effects of PS on the growth and metabolic activities of the gut microbes. We found that PS significantly reduced HFD-induced weight gain and excessive fat accumulation, changed the expression of key genes involved in lipid metabolism, and attenuated HFD-induced changes in the gut microbiota. However, PS did not affect fat accumulation or lipid metabolism in the gut microbiota depleted mice. Overall, our results show that PS has significant effects on the gut microbiota in the mouse model, and the anti-obesity effects of PS are mediated via changes in the gut microbiota composition and metabolic activity.
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Affiliation(s)
- Weixin Ke
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; National Center of Meat Quality and Safety Control, Nanjing 210095, China; National Key Laboratory of Meat Quality Control and New Resource, Nanjing Agricultural University, Nanjing 210095, China
| | - Kate Jade Flay
- Department of Veterinary Clinical Sciences, City University of Hong Kong, Kowloon 999077, Hong Kong Special Administrative Region of China
| | - Xiaoning Huang
- Department of bioengineering, University of Illinois at Urbana, Champaign 61801, USA
| | - Xiaosong Hu
- National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Fang Chen
- National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Chunbao Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; National Center of Meat Quality and Safety Control, Nanjing 210095, China; National Key Laboratory of Meat Quality Control and New Resource, Nanjing Agricultural University, Nanjing 210095, China
| | - Dan Aaron Yang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
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Shou JW, Shaw PC. Berberine activates PPARδ and promotes gut microbiota-derived butyric acid to suppress hepatocellular carcinoma. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 115:154842. [PMID: 37148713 DOI: 10.1016/j.phymed.2023.154842] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/19/2023] [Accepted: 04/25/2023] [Indexed: 05/08/2023]
Abstract
BACKGROUND Peroxisome proliferator-activated receptors (PPARs) are a family of ligand-inducible transcription factors that govern various essential metabolic activities in the liver and other organs. Recently, berberine (BBR) has been characterized as a modulator of PPARs; however, the matter of whether PPARs are involved in the inhibitory effect of BBR on hepatocellular carcinoma (HCC) is not well understood. PURPOSE This study aimed to investigate the role of PPARs in the suppressive effect of BBR on HCC and to elucidate the relative mechanism. METHODS We studied the role of PPARs in the anti-HCC effects of BBR both in vitro and in vivo. The mechanism whereby BBR regulated PPARs was studied using real-time PCR, immunoblotting, immunostaining, luciferase, and a chromatin immunoprecipitation coupled PCR assay. Additionally, we used adeno-associated virus (AAV)-mediated gene knockdown to address the effect of BBR more effectively. RESULTS We demonstrated that PPARδ played an active role in the anti-HCC effect of BBR, rather than PPARα or PPARγ. Following a PPARδ-dependent manner, BBR increased BAX, cleaved Caspase 3, and decreased BCL2 expression to trigger apoptotic death, thereby suppressing HCC development both in vitro and in vivo. It was noted that the interactions between PPARδ and the apoptotic pathway resulted from the BBR-induced upregulation of the PPARδ transcriptional function; that is, the BBR-induced activation of PPARδ could mediate the binding with the promoters of apoptotic genes such as Caspase 3, BAX, and BCL2. Moreover, gut microbiota also contributed to the suppressive effect of BBR on HCC. We found that BBR treatment restored the dysregulated gut microbiota induced by the liver tumor burden, and a functional gut microbial metabolite, butyric acid (BA), acted as a messenger in the gut microbiota-liver axis. Unlike BBR, the effects of BA suppressing HCC and activating PPARδ were not potent. However, BA was able to enhance the efficacy of BBR by reducing PPARδ degradation through a mechanism to inhibit the proteasome ubiquitin system. Additionally, we found that the anti-HCC effect of BBR or a combination of BBR and BA was much weaker in mice with AAV-mediated PPARδ knockdown than those in the control mice, suggesting the critical role of PPARδ. CONCLUSION In summary, this study is the first to report that a liver-gut microbiota-PPARδ trilogy contributes to the anti-HCC effect of BBR. BBR not only directly activated PPARδ to trigger apoptotic death but also promoted gut microbiota-derived BA production, which could reduce PPARδ degradation to enhance the efficacy of BBR.
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Affiliation(s)
- Jia-Wen Shou
- Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Pang-Chui Shaw
- Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants and Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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14
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PPARs and the Kynurenine Pathway in Melanoma-Potential Biological Interactions. Int J Mol Sci 2023; 24:ijms24043114. [PMID: 36834531 PMCID: PMC9960262 DOI: 10.3390/ijms24043114] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/28/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors involved in various physiological and pathological processes within the skin. PPARs regulate several processes in one of the most aggressive skin cancers, melanoma, including proliferation, cell cycle, metabolic homeostasis, cell death, and metastasis. In this review, we focused not only on the biological activity of PPAR isoforms in melanoma initiation, progression, and metastasis but also on potential biological interactions between the PPAR signaling and the kynurenine pathways. The kynurenine pathway is a major pathway of tryptophan metabolism leading to nicotinamide adenine dinucleotide (NAD+) production. Importantly, various tryptophan metabolites exert biological activity toward cancer cells, including melanoma. Previous studies confirmed the functional relationship between PPAR and the kynurenine pathway in skeletal muscles. Despite the fact this interaction has not been reported in melanoma to date, some bioinformatics data and biological activity of PPAR ligands and tryptophan metabolites may suggest a potential involvement of these metabolic and signaling pathways in melanoma initiation, progression, and metastasis. Importantly, the possible relationship between the PPAR signaling pathway and the kynurenine pathway may relate not only to the direct biological effect on melanoma cells but also to the tumor microenvironment and the immune system.
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15
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Chen J, Xiao Y, Li D, Zhang S, Wu Y, Zhang Q, Bai W. New insights into the mechanisms of high-fat diet mediated gut microbiota in chronic diseases. IMETA 2023; 2:e69. [PMID: 38868334 PMCID: PMC10989969 DOI: 10.1002/imt2.69] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/13/2022] [Accepted: 11/06/2022] [Indexed: 06/14/2024]
Abstract
High-fat diet (HFD) has been recognized as a primary factor in the risk of chronic disease. Obesity, diabetes, gastrointestinal diseases, neurodegenerative diseases, and cardiovascular diseases have long been known as chronic diseases with high worldwide incidence. In this review, the influences of gut microbiota and their corresponding bacterial metabolites on the mechanisms of HFD-induced chronic diseases are systematically summarized. Gut microbiota imbalance is also known to increase susceptibility to diseases. Several studies have proven that HFD has a negative impact on gut microbiota, also exacerbating the course of many chronic diseases through increased populations of Erysipelotrichaceae, facultative anaerobic bacteria, and opportunistic pathogens. Since bile acids, lipopolysaccharide, short-chain fatty acids, and trimethylamine N-oxide have long been known as common features of bacterial metabolites, we will explore the possibility of synergistic mechanisms among those metabolites and gut microbiota in the context of HFD-induced chronic diseases. Recent literature concerning the mechanistic actions of HFD-mediated gut microbiota have been collected from PubMed, Google Scholar, and Scopus. The aim of this review is to provide new insights into those mechanisms and to point out the potential biomarkers of HFD-mediated gut microbiota.
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Affiliation(s)
- Jiali Chen
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid DetectionJinan UniversityGuangzhouChina
- School of Chinese Medicine, Centre for Cancer and Inflammation ResearchHong Kong Baptist UniversityHong KongChina
| | - Yuhang Xiao
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid DetectionJinan UniversityGuangzhouChina
| | - Dongmei Li
- Department of Microbiology & ImmunologyGeorgetown University Medical CenterWashingtonDistrict of ColumbiaUSA
| | - Shiqing Zhang
- JNU‐HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of PharmacyJinan UniversityGuangzhouChina
| | - Yingzi Wu
- School of Chinese Medicine, Centre for Cancer and Inflammation ResearchHong Kong Baptist UniversityHong KongChina
| | - Qing Zhang
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid DetectionJinan UniversityGuangzhouChina
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid DetectionJinan UniversityGuangzhouChina
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Ma H, Yang L, Liu Y, Yan R, Wang R, Zhang P, Bai Z, Liu Y, Ren Y, Li Y, Jiang X, Wang T, Ma P, Zhang Q, Li A, Guo M, Zhang X, Jia S, Wang H. Butyrate suppresses atherosclerotic inflammation by regulating macrophages and polarization via GPR43/HDAC-miRNAs axis in ApoE-/- mice. PLoS One 2023; 18:e0282685. [PMID: 36888629 PMCID: PMC9994734 DOI: 10.1371/journal.pone.0282685] [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: 09/28/2022] [Accepted: 02/17/2023] [Indexed: 03/09/2023] Open
Abstract
Chronic low-grade inflammation is regarded to an important signature of atherosclerosis (AS). Macrophage (Mψ) and related polarization have been demonstrated to play a crucial role in the occurrence and development of AS inflammation. Butyrate, a bioactive molecule produced by the intestinal flora, has been increasingly demonstrated to exhibit a vital role for regulating the inflammation in chronic metabolic diseases. However, the effectiveness and multiple anti-inflammation mechanisms of butyrate on AS still need to be further understood. ApoE-/- mice fed with high-fat diet as AS model were administered with sodium butyrate (NaB) for 14 weeks of treatment. Our results showed that the atherosclerotic lesion in the AS group was dramatically reduced after NaB intervention. Moreover, deteriorated routine parameters of AS including body weights (BWs), low-density lipoprotein (LDL-C), triglyceride (TG), total cholesterol (TC) were significantly reversed by NaB administration. Abnormal elevated plasma and aorta pro-inflammatory indicators including interleukin (IL)-1β, IL-6, IL-17A, tumor necrosis factor (TNF)-α and lipopolysaccharide (LPS), as well as reduced anti-inflammatory IL-10 in plasma were respectively rectified after NaB administration. Consistently, accumulated Mψ and associated imbalance of polarization in the arota were attenuated with NaB treatment. Importantly, we demonstrated that the suppression of Mψ and associated polarization of NaB was dependent on binding G-protein coupled receptor (GPR) and inhibiting histone deacetylase HDAC3. Moreover, we found that intestinal butyrate-producing bacteria, anti-inflammatory bacteria and intestinal tight junction protein zonula occludens-1 (ZO)-1 may contribute to this effectiveness. Intriguingly, according to transcriptome sequencing of atherosclerotic aorta, 29 elevated and 24 reduced miRNAs were found after NaB treatment, especially miR-7a-5p, suggesting that non-coding RNA may possess a potential role in the protection of NaB against AS. Correlation analysis showed that there were close complicated interactions among gut microbiota, inflammation and differential miRNAs. Collectively, this study revealed that dietary NaB may ameliorate atherosclerotic inflammation by regulating Mψ polarization via GPR43/HDAC-miRNAs axis in ApoE-/- mice.
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Affiliation(s)
- Huiyan Ma
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
| | - Libo Yang
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
| | - Yajuan Liu
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
| | - Ru Yan
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
| | - Rui Wang
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Peng Zhang
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Zhixia Bai
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
| | - Yuanyuan Liu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Yi Ren
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Yiwei Li
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Xin Jiang
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Ting Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Ping Ma
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Qining Zhang
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
| | - Aifei Li
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Mixue Guo
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Xiaoxia Zhang
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, China
- * E-mail: (XZ); (SJ); (HW)
| | - Shaobin Jia
- Heart Centre & Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
- * E-mail: (XZ); (SJ); (HW)
| | - Hao Wang
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
- * E-mail: (XZ); (SJ); (HW)
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17
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Shi J, Qiu H, Xu Q, Ma Y, Ye T, Kuang Z, Qu N, Kan C, Hou N, Han F, Sun X. Integrated multi-omics analyses reveal effects of empagliflozin on intestinal homeostasis in high-fat-diet mice. iScience 2022; 26:105816. [PMID: 36636340 PMCID: PMC9830204 DOI: 10.1016/j.isci.2022.105816] [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: 09/26/2022] [Revised: 10/25/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Obesity has become a global epidemic, associated with several chronic complications. The intestinal microbiome is a critical regulator of metabolic homeostasis and obesity. Empagliflozin, a sodium-glucose cotransporter 2 (SGLT2) inhibitor, has putative anti-obesity effects. In this study, we used multi-omics analysis to determine whether empagliflozin regulates metabolism in an obese host through the intestinal microbiota. Compared with obese mice, the empagliflozin-treated mice had a higher species diversity of gut microbiota, characterized by a reduction in the Firmicutes/Bacteroides ratio. Metabolomic analysis unambiguously identified 1,065 small molecules with empagliflozin affecting metabolites mainly enriched in amino acid metabolism, such as tryptophan metabolism. RNA sequencing results showed that immunoglobulin A and peroxisome proliferator-activated receptor signaling pathways in the intestinal immune network were activated after empagliflozin treatment. This integrative analysis highlighted that empagliflozin maintains intestinal homeostasis by modulating gut microbiota diversity and tryptophan metabolism. This will inform the development of therapies for obesity based on host-microbe interactions.
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Affiliation(s)
- Junfeng Shi
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Hongyan Qiu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Qian Xu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Yuting Ma
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Tongtong Ye
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Zengguang Kuang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Na Qu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Chengxia Kan
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Ningning Hou
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Fang Han
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China,Department of Pathology, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Corresponding author
| | - Xiaodong Sun
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, 2428 Yuhe Road, Weifang, Shandong 261031, China,Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China,Corresponding author
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18
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Surman SL, Crawford J, Dash P, Tonkonogy SL, Thomas PG, Hurwitz JL. Microbiome Shapes the T Cell Receptor Repertoire among CD4+CD8+ Thymocytes. Biomedicines 2022; 10:biomedicines10123015. [PMID: 36551771 PMCID: PMC9775422 DOI: 10.3390/biomedicines10123015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 11/24/2022] Open
Abstract
The microbiome shapes the mature T cell receptor (TCR) repertoire and thereby influences pathogen control. To investigate microbiome influences on T cells at an earlier, immature stage, we compared single-cell TCR transcript sequences between CD4+CD8+ (double-positive) thymocytes from gnotobiotic [E. coli mono-associated (Ec)] and germ-free (GF) mice. Identical TCRβ transcripts (termed repeat, REP) were more often shared between cells of individual Ec mice compared to GF mice (Fishers Exact test, p < 0.0001). Among Ec REPs, a cluster of Vβ genes (Vβ12-1, 12-2, 13-1, and 13-2, termed 12-13) was well represented, whereas 12-13 sequences were not detected among GF REPs (Fishers Exact test, p = 0.046). Vα genes located in the distal region of the TCRα locus were more frequently expressed in Ec mice compared to GF mice, both among REPs and total sequences (Fishers Exact test, p = 0.009). Results illustrate how gut bacteria shape the TCR repertoire, not simply among mature T cells, but among immature CD4+CD8+ thymocytes.
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Affiliation(s)
- Sherri L. Surman
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA
| | - Jeremy Crawford
- Department of Immunology, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA
| | - Pradyot Dash
- Lentigen, a Miltenyi Biotec Company, Gaithersburg, MD 20878, USA
| | - Susan L. Tonkonogy
- College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA
| | - Paul G. Thomas
- Department of Immunology, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Julia L. Hurwitz
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Correspondence:
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19
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Genetic and environmental circadian disruption induce weight gain through changes in the gut microbiome. Mol Metab 2022; 66:101628. [PMID: 36334897 PMCID: PMC9672454 DOI: 10.1016/j.molmet.2022.101628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Internal clocks time behavior and physiology, including the gut microbiome, in a circadian (∼24 h) manner. Mismatch between internal and external time, e.g. during shift work, disrupts circadian system coordination promoting the development of obesity and type 2 diabetes (T2D). Conversely, body weight changes induce microbiota dysbiosis. The relationship between circadian disruption and microbiota dysbiosis in metabolic diseases, however, remains largely unknown. METHODS Core and accessory clock gene expression in different gastrointestinal (GI) tissues were determined by qPCR in two different models of circadian disruption - mice with Bmal1 deficiency in the circadian pacemaker, the suprachiasmatic nucleus (Bmal1SCNfl/-), and wild-type mice exposed to simulated shift work (SSW). Body composition and energy balance were evaluated by nuclear magnetic resonance (NMR), bomb calorimetry, food intake and running-wheel activity. Intestinal permeability was measured in an Ussing chamber. Microbiota composition and functionality were evaluated by 16S rRNA gene amplicon sequencing, PICRUST2.0 analysis and targeted metabolomics. Finally, microbiota transfer was conducted to evaluate the functional impact of SSW-associated microbiota on the host's physiology. RESULTS Both chronodisruption models show desynchronization within and between peripheral clocks in GI tissues and reduced microbial rhythmicity, in particular in taxa involved in short-chain fatty acid (SCFA) fermentation and lipid metabolism. In Bmal1SCNfl/- mice, loss of rhythmicity in microbial functioning associates with previously shown increased body weight, dysfunctional glucose homeostasis and adiposity. Similarly, we observe an increase in body weight in SSW mice. Germ-free colonization experiments with SSW-associated microbiota mechanistically link body weight gain to microbial changes. Moreover, alterations in expression of peripheral clock genes as well as clock-controlled genes (CCGs) relevant for metabolic functioning of the host were observed in recipients, indicating a bidirectional relationship between microbiota rhythmicity and peripheral clock regulation. CONCLUSIONS Collectively, our data suggest that loss of rhythmicity in bacteria taxa and their products, which likely originates in desynchronization of intestinal clocks, promotes metabolic abnormalities during shift work.
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20
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Kobayashi T, Iwaki M, Nakajima A, Nogami A, Yoneda M. Current Research on the Pathogenesis of NAFLD/NASH and the Gut-Liver Axis: Gut Microbiota, Dysbiosis, and Leaky-Gut Syndrome. Int J Mol Sci 2022; 23:ijms231911689. [PMID: 36232990 PMCID: PMC9570241 DOI: 10.3390/ijms231911689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022] Open
Abstract
Global lifestyle changes have led to an increased incidence of non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH), requiring further in-depth research to understand the mechanisms and develop new therapeutic strategies. In particular, high-fat and high-fructose diets have been shown to increase intestinal permeability, which can expose the liver to endotoxins. Indeed, accumulating evidence points to a link between these liver diseases and the intestinal axis, including dysbiosis of the gut microbiome and leaky-gut syndrome. Here, we review the mechanisms contributing to these links between the liver and small intestine in the pathogenesis of NAFLD/NASH, focusing on the roles of intestinal microbiota and their metabolites to influence enzymes essential for proper liver metabolism and function. Advances in next-generation sequencing technology have facilitated analyses of the metagenome, providing new insights into the roles of the intestinal microbiota and their functions in physiological and pathological mechanisms. This review summarizes recent research linking the gut microbiome to liver diseases, offering new research directions to elucidate the detailed mechanisms and novel targets for treatment and prevention.
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21
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Guixé‐Muntet S, Biquard L, Szabo G, Dufour J, Tacke F, Francque S, Rautou P, Gracia‐Sancho J. Review article: vascular effects of PPARs in the context of NASH. Aliment Pharmacol Ther 2022; 56:209-223. [PMID: 35661191 PMCID: PMC9328268 DOI: 10.1111/apt.17046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/04/2021] [Accepted: 05/08/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors known to regulate glucose and fatty acid metabolism, inflammation, endothelial function and fibrosis. PPAR isoforms have been extensively studied in metabolic diseases, including type 2 diabetes and cardiovascular diseases. Recent data extend the key role of PPARs to liver diseases coursing with vascular dysfunction, including nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH). AIM This review summarises and discusses the pathobiological role of PPARs in cardiovascular diseases with a special focus on their impact and therapeutic potential in NAFLD and NASH. RESULTS AND CONCLUSIONS PPARs may be attractive for the treatment of NASH due to their liver-specific effects but also because of their efficacy in improving cardiovascular outcomes, which may later impact liver disease. Assessment of cardiovascular disease in the context of NASH trials is, therefore, of the utmost importance, both from a safety and efficacy perspective.
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Affiliation(s)
- Sergi Guixé‐Muntet
- Liver Vascular Biology Research GroupIDIBAPS Biomedical Research Institute & CIBEREHDBarcelonaSpain
| | - Louise Biquard
- Université de Paris, Inserm, CNRSCentre de recherche sur l'InflammationUMR1149ParisFrance
| | - Gyongyi Szabo
- Beth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Jean‐François Dufour
- Department of Visceral Surgery and Medicine & Department for Biomedical ResearchInselspital, University of BernBernSwitzerland
| | - Frank Tacke
- Department of Hepatology & GastroenterologyCharité Universitätsmedizin Berlin, Campus Virchow‐Klinikum (CVK) and Campus Charité Mitte (CCM)BerlinGermany
| | - Sven Francque
- Department of Gastroenterology and HepatologyAntwerp University HospitalAntwerpBelgium,Translational Sciences in Inflammation and ImmunologyInflaMed Centre of Excellence, Laboratory of Experimental Medicine and Paediatrics, Faculty of Medicine and Health Sciences, University of AntwerpAntwerpBelgium
| | - Pierre‐Emmanuel Rautou
- Université de Paris, AP‐HP, Hôpital Beaujon, Service d'Hépatologie, DMU DIGESTCentre de Référence des Maladies Vasculaires du Foie, FILFOIE, ERN RARE‐LIVER, Centre de recherche sur l'inflammationParisFrance
| | - Jordi Gracia‐Sancho
- Liver Vascular Biology Research GroupIDIBAPS Biomedical Research Institute & CIBEREHDBarcelonaSpain,Department of Visceral Surgery and Medicine & Department for Biomedical ResearchInselspital, University of BernBernSwitzerland
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22
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Luo S, He L, Zhang H, Li Z, Liu C, Chen T. Arabinoxylan from rice bran protects mice against high-fat diet-induced obesity and metabolic inflammation by modulating gut microbiota and short-chain fatty acids. Food Funct 2022; 13:7707-7719. [PMID: 35758533 DOI: 10.1039/d2fo00569g] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Rice bran is an important by-product of the milling industry. Arabinoxylan extracted from rice bran (RAX) is available in large quantities and is structurally different from other arabinoxylans from cereals. The anti-obesity effects of RAX and the role of microbiota have not been studied. In this work, we investigated the beneficial effects of RAX in C57BL/6J mice fed a high-fat diet (HFD). We found that supplementation of RAX significantly ameliorated HFD-induced obesity. RAX decreased HFD induced lipid accumulation and regulated genes related to hepatic fatty acid metabolism. Regulated lipid metabolism is associated with reduced systemic inflammation as indicated by TNF-α and IL-6. RAX normalized the gut microbiota and its major metabolites short-chain fatty acids (SCFAs). RAX restored the alpha diversity of the gut microbiota and increased the relative abundance of anti-inflammatory bacteria including Bifidobacterium and Akkermansia. RAX decreased pro-inflammatory bacteria including Anaerotruncus, Helicobacter, Coprococcus, and Desulfovibrio. Our results suggest that systemic inflammation bridges to the gut microbiota through LPS and SCFAs. RAX modulates the gut microbiota and SCFA production in the large intestine, thereby reducing systemic inflammation and ameliorating obesity. In brief, RAX prevented obesity through a mechanism related to the modulation of the microbiota and its metabolites.
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Affiliation(s)
- Shunjing Luo
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi, 330047, China.
| | - Li He
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi, 330047, China.
| | - Huibin Zhang
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi, 330047, China.
| | - Zhongxia Li
- BYHEALTH Institute of Nutrition & Health, Guangzhou 510663, China.,Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Chengmei Liu
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi, 330047, China.
| | - Tingting Chen
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi, 330047, China.
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23
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Amiri P, Hosseini SA, Ghaffari S, Tutunchi H, Ghaffari S, Mosharkesh E, Asghari S, Roshanravan N. Role of Butyrate, a Gut Microbiota Derived Metabolite, in Cardiovascular Diseases: A comprehensive narrative review. Front Pharmacol 2022; 12:837509. [PMID: 35185553 PMCID: PMC8847574 DOI: 10.3389/fphar.2021.837509] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 12/31/2021] [Indexed: 12/17/2022] Open
Abstract
Cardiovascular diseases (CVD) are major causes of death worldwide. Recently, new roles for intestinal microbiota in pathology and treatment of CVD have been proposed. Butyrate, a bacterial metabolite, is synthesized in the gut and performs most of its functions in there. However, researchers have discovered that butyrate could enter to portal vein and interact with various organs. Butyrate exhibits a broad range of pharmacological activities, including microbiome modulator, anti-inflammatory, anti-obesity, metabolic pathways regulator, anti-angiogenesis, and antioxidant. In this article we review evidence supporting a potentially therapeutic role for butyrate in CVD and the mechanisms and pathways involved in the cardio-protective effects of butyrate from the gut and circulation to the nervous system. In summary, although butyrate exhibits a wide variety of biological activities in different pathways including energy homeostasis, glucose and lipid metabolism, inflammation, oxidative stress, neural signaling, and epigenetic modulation in experimental settings, it remains unclear whether these findings are clinically relevant and whether the molecular pathways are activated by butyrate in humans.
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Affiliation(s)
- Parichehr Amiri
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Nutrition and Metabolic Diseases Research Center, Clinical Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Ahmad Hosseini
- Nutrition and Metabolic Diseases Research Center, Clinical Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Samad Ghaffari
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Helda Tutunchi
- Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shamsi Ghaffari
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Erfan Mosharkesh
- Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Samira Asghari
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Roshanravan
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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24
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Bailén M, Tabone M, Bressa C, Lominchar MGM, Larrosa M, González-Soltero R. Unraveling Gut Microbiota Signatures Associated with PPARD and PARGC1A Genetic Polymorphisms in a Healthy Population. Genes (Basel) 2022; 13:genes13020289. [PMID: 35205333 PMCID: PMC8871880 DOI: 10.3390/genes13020289] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 01/28/2022] [Indexed: 02/06/2023] Open
Abstract
Recent studies have revealed the importance of the gut microbiota in the regulation of metabolic phenotypes of highly prevalent metabolic diseases such as obesity, type II diabetes mellitus (T2DM) and cardiovascular disease. Peroxisome proliferator-activated receptors (PPARs) are a family of ligand-activated nuclear receptors that interact with PPAR-γ co-activator-1α (PPARGC1A) to regulate lipid and glucose metabolism. Genetic polymorphisms in PPARD (rs 2267668; A/G) and PPARGC1A (rs 8192678; G/A) are linked to T2DM. We studied the association between the single-nucleotide polymorphisms (SNPs) rs 2267668 and rs 8192678 and microbiota signatures and their relation to predicted metagenome functions, with the aim of determining possible microbial markers in a healthy population. Body composition, physical exercise and diet were characterized as potential confounders. Microbiota analysis of subjects with PPARGC1A (rs 8192678) and PPARD (rs 2267668) SNPs revealed certain taxa associated with the development of insulin resistance and T2DM. Kyoto encyclopedia of gene and genomes analysis of metabolic pathways predicted from metagenomes highlighted an overrepresentation of ABC sugar transporters for the PPARGC1A (rs 8192678) SNP. Our findings suggest an association between sugar metabolism and the PPARGC1A rs 8192678 (G/A) genotype and support the notion of specific microbiota signatures as factors related to the onset of T2DM.
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25
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Chen Y, Liu Y, Wang Y, Chen X, Wang C, Chen X, Yuan X, Liu L, Yang J, Zhou X. Prevotellaceae produces butyrate to alleviate PD-1/PD-L1 inhibitor-related cardiotoxicity via PPARα-CYP4X1 axis in colonic macrophages. J Exp Clin Cancer Res 2022; 41:1. [PMID: 34980222 PMCID: PMC8722009 DOI: 10.1186/s13046-021-02201-4] [Citation(s) in RCA: 86] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/26/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitor-related cardiotoxicity is one of the most lethal adverse effects, and thus, the identification of underlying mechanisms for developing strategies to overcome it has clinical importance. This study aimed to investigate whether microbiota-host interactions contribute to PD-1/PD-L1 inhibitor-related cardiotoxicity. METHODS A mouse model of immune checkpoint inhibitor-related cardiotoxicity was constructed by PD-1/PD-L1 inhibitor BMS-1 (5 and 10 mg/kg), and cardiomyocyte apoptosis and cardiotoxicity were determined by hematoxylin and eosin, Masson's trichome and TUNEL assays. 16S rRNA sequencing was used to define the gut microbiota composition. Gut microbiota metabolites short-chain fatty acids (SCFAs) were determined by HPLC. The serum levels of myocardial enzymes (creatine kinase, aspartate transaminase, creatine kinase-MB and lactate dehydrogenase) and the production of M1 factors (TNF-α and IL-1β) were measured by ELISA. The colonic macrophage phenotype was measured by mmunofluorescence and qPCR. The expression of Claudin-1, Occludin, ZO-1 and p-p65 was measured by western blot. The gene expression of peroxisome proliferator-activated receptor α (PPARα) and cytochrome P450 (CYP) 4X1 was determined using qPCR. Statistical analyses were performed using Student's t-test for two-group comparisons, and one-way ANOVA followed by Student-Newman-Keul test for multiple-group comparisons. RESULTS We observed intestinal barrier injury and gut microbiota dysbiosis characterized by Prevotellaceae and Rikenellaceae genus depletion and Escherichia-Shigella and Ruminococcaceae genus enrichment, accompanied by low butyrate production and M1-like polarization of colonic macrophages in BMS-1 (5 and 10 mg/kg)-induced cardiotoxicity. Fecal microbiota transplantation mirrored the effect of BMS-1 on cardiomyocyte apoptosis and cardiotoxicity, while macrophage depletion and neutralization of TNF-α and IL-1β greatly attenuated BMS-1-induced cardiotoxicity. Importantly, Prevotella loescheii recolonization and butyrate supplementation alleviated PD-1/PD-L1 inhibitor-related cardiotoxicity. Mechanistically, gut microbiota dysbiosis promoted M1-like polarization of colonic macrophages and the production of proinflammatory factors TNF-α and IL-1β through downregulation of PPARα-CYP4X1 axis. CONCLUSIONS Intestinal barrier dysfunction amplifies PD-1/PD-L1 inhibitor-related cardiotoxicity by upregulating proinflammatory factors TNF-α and IL-1β in colonic macrophages via downregulation of butyrate-PPARα-CYP4X1 axis. Thus, targeting gut microbiota to polarize colonic macrophages away from the M1-like phenotype could provide a potential therapeutic strategy for PD-1/PD-L1 inhibitor-related cardiotoxicity.
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Affiliation(s)
- Yaxin Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yanzhuo Liu
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yang Wang
- Department of Pharmacology and Hubei Province Key Laboratory of Allergy and Immune-related Diseases, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xuewei Chen
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Chenlong Wang
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xuehan Chen
- Department of Pharmacology and Hubei Province Key Laboratory of Allergy and Immune-related Diseases, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xi Yuan
- Department of Pharmacology and Hubei Province Key Laboratory of Allergy and Immune-related Diseases, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Lilong Liu
- Department of Pharmacology and Hubei Province Key Laboratory of Allergy and Immune-related Diseases, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Jing Yang
- Department of Pharmacology and Hubei Province Key Laboratory of Allergy and Immune-related Diseases, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China.
| | - Xiaoyang Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Abstract
Cross-talk between peripheral tissues is essential to ensure the coordination of nutrient intake with disposition during the feeding period, thereby preventing metabolic disease. This mini-review considers the interactions between the key peripheral tissues that constitute the metabolic clock, each of which is considered in a separate mini-review in this collation of articles published in Endocrinology in 2020 and 2021, by Martchenko et al (Circadian rhythms and the gastrointestinal tract: relationship to metabolism and gut hormones); Alvarez et al (The microbiome as a circadian coordinator of metabolism); Seshadri and Doucette (Circadian regulation of the pancreatic beta cell); McCommis et al (The importance of keeping time in the liver); Oosterman et al (The circadian clock, shift work, and tissue-specific insulin resistance); and Heyde et al (Contributions of white and brown adipose tissues to the circadian regulation of energy metabolism). The use of positive- and negative-feedback signals, both hormonal and metabolic, between these tissues ensures that peripheral metabolic pathways are synchronized with the timing of food intake, thus optimizing nutrient disposition and preventing metabolic disease. Collectively, these articles highlight the critical role played by the circadian clock in maintaining metabolic homeostasis.
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Affiliation(s)
- Patricia L Brubaker
- Department of Physiology, University of Toronto, Toronto, Ontario M5S 1A8Canada
- Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8Canada
- Correspondence: P. L. Brubaker, PhD, Departments of Physiology and Medicine, University of Toronto, Medical Sciences Bldg, Rm 3366, 1 King’s College Cir, Toronto, ON M5S 1A8, Canada.
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Yamaguchi A, Teratani T, Chu P, Suzuki T, Taniki N, Mikami Y, Shiba S, Morikawa R, Amiya T, Aoki R, Kanai T, Nakamoto N. Hepatic Adenosine Triphosphate Reduction Through the Short-Chain Fatty Acids-Peroxisome Proliferator-Activated Receptor γ-Uncoupling Protein 2 Axis Alleviates Immune-Mediated Acute Hepatitis in Inulin-Supplemented Mice. Hepatol Commun 2021; 5:1555-1570. [PMID: 34510840 PMCID: PMC8435281 DOI: 10.1002/hep4.1742] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/08/2021] [Accepted: 04/24/2021] [Indexed: 02/04/2023] Open
Abstract
How liver tolerance is disrupted in immune-mediated liver injury is currently unclear. There is also insufficient information available regarding susceptibility, precipitation, escalation, and perpetuation of autoimmune hepatitis. To explore how dietary fiber influences hepatic damage, we applied the concanavalin A (ConA)-induced acute immune-mediated liver injury model in mice fed a diet supplemented with 6.8% inulin, a water-soluble fermentable fiber. Twelve hours after ConA administration, inulin-supplemented diet-fed mice demonstrated significantly alleviated hepatic damage histologically and serologically, with down-regulation of hepatic interferon-γ and tumor necrosis factor and reduced myeloperoxidase (MPO)-producing neutrophil infiltration. Preconditioning with an inulin-supplemented diet for 2 weeks significantly reduced hepatic adenosine triphosphate (ATP) content; suramin, a purinergic P2 receptor antagonist, abolished the protective effect. Of note, the portal plasma derived from mice fed the inulin-supplemented diet significantly alleviated ConA-induced immune-mediated liver injury. Mechanistically, increased portal short-chain fatty acid (SCFA) levels, such as those of acetate and butyrate, by inulin supplementation leads to up-regulation of hepatic γ-type peroxisome proliferator-activated receptor (Pparg) and uncoupling protein 2 (Ucp2), which uncouples mitochondrial ATP synthesis downstream of PPARγ. Pparg down-regulating small interfering RNA cancelled the protective effect of inulin supplementation against MPO-producing neutrophil infiltration and the subsequent immune-mediated liver injury, suggesting that the SCFA-PPARγ-UCP2 axis plays a key role in the protective effect by inulin supplementation. Moreover, significant changes in the gut microbiota, including increased operational taxonomic units in genera Akkermansia and Allobaculum, also characterized the protective effect of the inulin-supplemented diet. Conclusion: There is a possible unraveled etiopathophysiological link between the maintenance of liver tolerance and dietary fiber. The SCFA-PPARγ-UCP2 axis may provide therapeutic targets for immune-mediated liver injury in the future.
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Affiliation(s)
- Akihiro Yamaguchi
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
- Department of Gastroenterology and HepatologyNational Hospital Organization Saitama HospitalSaitamaJapan
| | - Toshiaki Teratani
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
| | - Po‐sung Chu
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
| | - Takahiro Suzuki
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
- Miyarisan Pharmaceutical Co., Ltd.TokyoJapan
| | - Nobuhito Taniki
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
| | - Yohei Mikami
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
| | - Shunsuke Shiba
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
| | - Rei Morikawa
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
| | - Takeru Amiya
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
- Research Unit/Immunology and InflammationSohyaku Innovative Research DivisionMitsubishi Tanabe Pharma CoKanagawaJapan
| | - Ryo Aoki
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
- Institute of Health ScienceEzaki Glico Co., Ltd.OsakaJapan
| | - Takanori Kanai
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
| | - Nobuhiro Nakamoto
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineKeio University School of MedicineTokyoJapan
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Zubareva OE, Melik-Kasumov TB. The Gut–Brain Axis and Peroxisome Proliferator-Activated Receptors in the Regulation of Epileptogenesis. J EVOL BIOCHEM PHYS+ 2021. [DOI: 10.1134/s0022093021040013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhao L, Zhu X, Xia M, Li J, Guo AY, Zhu Y, Yang X. Quercetin Ameliorates Gut Microbiota Dysbiosis That Drives Hypothalamic Damage and Hepatic Lipogenesis in Monosodium Glutamate-Induced Abdominal Obesity. Front Nutr 2021; 8:671353. [PMID: 33996881 PMCID: PMC8116593 DOI: 10.3389/fnut.2021.671353] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/01/2021] [Indexed: 12/12/2022] Open
Abstract
Monosodium glutamate (MSG)-induced abdominal obesity, conventionally caused by hypothalamic damage, is a critical risk factor for health problem. Microbiota-gut-brain axis plays important roles in a variety of metabolic diseases. However, whether gut microbiota is involved in the pathogenesis for MSG-induced abdominal obesity and the effect of quercetin on it remains unclear. Herein, we find that MSG-induced gut microbiota dysbiosis contributes to neuronal damage in the hypothalamus, as indicated by antibiotics-induced microbiota depletion and co-house treatment. Inspired by this finding, we investigate the mechanism in-depth for MSG-induced abdominal obesity. Liver transcriptome profiling shows retinol metabolism disorder in MSG-induced abdominal obese mice. In which, retinol saturase (RetSat) in the liver is notably up-regulated, and the downstream lipogenesis is correspondingly elevated. Importantly, microbiota depletion or co-house treatment eliminates the difference of RetSat expression in the liver, indicating gut microbiota changes are responsible for liver retinol metabolism disorder. Moreover, this study finds dietary quercetin could modulate MSG-induced gut microbiota dysbiosis, alleviate hypothalamic damage and down-regulate liver RetSat expression, thus ameliorating abdominal obesity. Our study enriches the pathogenesis of MSG-induced abdominal obesity and provides a prebiotic agent to ameliorate abdominal obesity.
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Affiliation(s)
- Lijun Zhao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoqiang Zhu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Mengxuan Xia
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - An-Yuan Guo
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Yanhong Zhu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
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30
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Daas MC, de Roos NM. Intermittent fasting contributes to aligned circadian rhythms through interactions with the gut microbiome. Benef Microbes 2021; 12:147-161. [PMID: 33530881 DOI: 10.3920/bm2020.0149] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The timing of food consumption is considered to be an important modulator of circadian rhythms, regulating a wide range of physiological processes which are vital to human health. The exact mechanisms underlying this relationship are not fully understood, but likely involve alterations in the structure and functioning of the gut microbiome. Therefore, this narrative review aims to clarify these mechanisms by focusing on intermittent fasting as a dietary strategy of food timing. A literature search identified 4 clinical and 18 preclinical studies that examined either (1) the impact of intermittent fasting on the gut microbiome, or (2) whether circadian rhythms of the host are subject to changes in the bacterial populations in the gut. Results reveal that intermittent fasting directly influences the gut microbiome by amplifying diurnal fluctuations in bacterial abundance and metabolic activity. This in turn leads to fluctuations in the levels of microbial components (lipopolysaccharide) and metabolites (short-chain fatty acids, bile acids, and tryptophan derivates) that act as signalling molecules to the peripheral and central clocks of the host. Binding of these substrates to pattern-recognition receptors on the surface of intestinal epithelial cells in an oscillating manner leads to fluctuations in the expression of circadian genes and their transcription factors involved in various metabolic processes. Intermittent fasting thus contributes to circadian rhythmicity in the host and could hold promising implications for the treatment and prevention of diseases associated with disordered circadian rhythms, such as obesity and metabolic syndrome. Future intervention studies are needed to find more evidence on this relationship in humans, as well as to clarify the optimal fasting regimen for balanced circadian rhythms.
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Affiliation(s)
- M C Daas
- Division of Human Nutrition and Health, Department of Agrotechnology and Food Sciences, Wageningen University, P.O. Box 17, 6700 AA, Wageningen, the Netherlands
| | - N M de Roos
- Division of Human Nutrition and Health, Department of Agrotechnology and Food Sciences, Wageningen University, P.O. Box 17, 6700 AA, Wageningen, the Netherlands
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31
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Yan R, Wang K, Wang Q, Jiang H, Lu Y, Chen X, Zhang H, Su X, Du Y, Chen L, Li L, Lv L. Probiotic Lactobacillus casei Shirota prevents acute liver injury by reshaping the gut microbiota to alleviate excessive inflammation and metabolic disorders. Microb Biotechnol 2021; 15:247-261. [PMID: 33492728 PMCID: PMC8719798 DOI: 10.1111/1751-7915.13750] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 12/13/2022] Open
Abstract
Millions of people die from liver diseases annually, and liver failure is one of the three major outcomes of liver disease. The gut microbiota plays a crucial role in liver diseases. This study aimed to explore the effects of Lactobacillus casei strain Shirota (LcS), a probiotics used widely around the world, on acute liver injury (ALI), as well as the underlying mechanism. Sprague Dawley rats were intragastrically administered LcS suspensions or placebo once daily for 7 days before induction of ALI by intraperitoneal injection of D-galactosamine (D-GalN). Histopathological examination and assessments of liver biochemical markers, inflammatory cytokines, and the gut microbiota, metabolome and transcriptome were conducted. Our results showed that pretreatment with LcS reduced hepatic and intestinal damage and reduced the elevation of serum gamma-glutamyltranspeptidase (GGT), total bile acids, IL-5, IL-10, G-CSF and RANTES. The analysis of the gut microbiota, metabolome and transcriptome showed that LcS lowered the ratio of Firmicutes to Bacteroidetes; reduced the enrichment of metabolites such as chenodeoxycholic acid, deoxycholic acid, lithocholic acid, d-talose and N-acetyl-glucosamine, reduce the depletion of d-glucose and l-methionine; and alleviated the downregulation of retinol metabolism and PPAR signalling and the upregulation of the pyruvate metabolism pathway in the liver. These results indicate the promising prospect of using LcS for the treatment of liver diseases, particularly ALI.
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Affiliation(s)
- Ren Yan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Kaicen Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Qiangqiang Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Huiyong Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yingfeng Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Xiaoxiao Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Hua Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Xiaoling Su
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yiling Du
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Lifeng Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Longxian Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
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Wu L, Li J, Feng J, Ji J, Yu Q, Li Y, Zheng Y, Dai W, Wu J, Guo C. Crosstalk between PPARs and gut microbiota in NAFLD. Biomed Pharmacother 2021; 136:111255. [PMID: 33485064 DOI: 10.1016/j.biopha.2021.111255] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/03/2021] [Accepted: 01/03/2021] [Indexed: 02/08/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) has become the most common liver disorder in both China and worldwide. It ranges from simple steatosis and progresses over time to nonalcoholic steatohepatitis (NASH), advanced liver fibrosis, cirrhosis, or hepatocellular carcinoma(HCC). Furthermore, NAFLD and its complications impose a huge health burden to society. The microbiota is widely connected and plays an active role in human physiology and pathology, and it is a hidden 'organ' in determining the state of the host, in terms of homeostasis, or disease. Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear receptorsuperfamily and can regulate multiple pathways involved in metabolism, and serve as effective targets forthe treatment of many types of metabolic syndromes, including NAFLD. The purpose of this review is to integrate related articles on gut microbiota, PPARs and NAFLD, and present a balanced overview on how the microbiota can possibly influence the development of NAFLD through PPARs.
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Affiliation(s)
- Liwei Wu
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai, 200060, China; Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Jingjing Li
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai, 200060, China; Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Jiao Feng
- Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Jie Ji
- Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Qiang Yu
- Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yan Li
- Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yuanyuan Zheng
- Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Weiqi Dai
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai, 200060, China; Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Jianye Wu
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai, 200060, China.
| | - Chuanyong Guo
- Department of Gastroenterology, Shanghai Tenth People'sHospital, Tongji University School of Medicine, Shanghai, 200072, China.
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Jiang H, Yan R, Wang K, Wang Q, Chen X, Chen L, Li L, Lv L. Lactobacillus reuteri DSM 17938 alleviates d-galactosamine-induced liver failure in rats. Biomed Pharmacother 2021; 133:111000. [PMID: 33202285 DOI: 10.1016/j.biopha.2020.111000] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/05/2020] [Accepted: 11/08/2020] [Indexed: 02/07/2023] Open
Abstract
Liver failure is a serious hepatic dysfunction with high mortality. This work aimed to investigate the effect of a famous probiotic and drug, Lactobacillus reuteri DSM 17938, on liver failure in rats. Sprague-Dawley rats were gavaged with 3 × 109 CFU of DSM 17938 for 7 days. d-galactosamine was intraperitoneally injected to induce acute liver failure on the eighth day. Samples were collected to determine the liver function, serum cytokines levels, terminal ileum and liver histology, gut microbiota, metabolome and transcriptome. Our results showed that pretreatment with DSM 17938 not only reduced the elevation in serum alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transferase, IL-1α, IL-2, IL-18, M-CSF, and MIP-3α levels but also alleviated histological abnormalities of both the terminal ileum and liver induced by d-galactosamine. Additionally, DSM 17938 reduced d-galactosamine-induced enrichment of some taxa of gut Actinobacteria or Firmicutes, including abundant pathogens such as Actinomycetales, Coriobacteriaceae, Staphylococcaceae and Enterococcaceae. Furthermore, DSM 17938 reduced the d-galactosamine-induced increase in not only fecal metabolites such as trisaminol and lithocholic acid but also the transcription of liver inflammatory genes, such as Ccl2, Ccl7, Ccl11, Ccl12, Il6, Il11, Il20rb, Mmp3 and Mmp10. Downregulation of retinol metabolism and PPAR signaling pathway as well as upregulation of viral protein interaction with cytokine and cytokine receptor and central carbon metabolism in cancer signaling pathway were involved in the mechanism of L. reuteri DSM 17938 alleviating liver failure. Our findings suggested that DSM 17938 is a potential probiotic for the prevention or treatment of liver failure.
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Affiliation(s)
- Huiyong Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Ren Yan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Kaicen Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Qiangqiang Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Xiaoxiao Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Lifeng Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China.
| | - Longxian Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003, Hangzhou, China.
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Rives C, Fougerat A, Ellero-Simatos S, Loiseau N, Guillou H, Gamet-Payrastre L, Wahli W. Oxidative Stress in NAFLD: Role of Nutrients and Food Contaminants. Biomolecules 2020; 10:E1702. [PMID: 33371482 PMCID: PMC7767499 DOI: 10.3390/biom10121702] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is often the hepatic expression of metabolic syndrome and its comorbidities that comprise, among others, obesity and insulin-resistance. NAFLD involves a large spectrum of clinical conditions. These range from steatosis, a benign liver disorder characterized by the accumulation of fat in hepatocytes, to non-alcoholic steatohepatitis (NASH), which is characterized by inflammation, hepatocyte damage, and liver fibrosis. NASH can further progress to cirrhosis and hepatocellular carcinoma. The etiology of NAFLD involves both genetic and environmental factors, including an unhealthy lifestyle. Of note, unhealthy eating is clearly associated with NAFLD development and progression to NASH. Both macronutrients (sugars, lipids, proteins) and micronutrients (vitamins, phytoingredients, antioxidants) affect NAFLD pathogenesis. Furthermore, some evidence indicates disruption of metabolic homeostasis by food contaminants, some of which are risk factor candidates in NAFLD. At the molecular level, several models have been proposed for the pathogenesis of NAFLD. Most importantly, oxidative stress and mitochondrial damage have been reported to be causative in NAFLD initiation and progression. The aim of this review is to provide an overview of the contribution of nutrients and food contaminants, especially pesticides, to oxidative stress and how they may influence NAFLD pathogenesis.
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Affiliation(s)
- Clémence Rives
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, EVT, INP-Purpan, UPS, 31300 Toulouse, France; (C.R.); (A.F.); (S.E.-S.); (N.L.); (H.G.)
| | - Anne Fougerat
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, EVT, INP-Purpan, UPS, 31300 Toulouse, France; (C.R.); (A.F.); (S.E.-S.); (N.L.); (H.G.)
| | - Sandrine Ellero-Simatos
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, EVT, INP-Purpan, UPS, 31300 Toulouse, France; (C.R.); (A.F.); (S.E.-S.); (N.L.); (H.G.)
| | - Nicolas Loiseau
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, EVT, INP-Purpan, UPS, 31300 Toulouse, France; (C.R.); (A.F.); (S.E.-S.); (N.L.); (H.G.)
| | - Hervé Guillou
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, EVT, INP-Purpan, UPS, 31300 Toulouse, France; (C.R.); (A.F.); (S.E.-S.); (N.L.); (H.G.)
| | - Laurence Gamet-Payrastre
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, EVT, INP-Purpan, UPS, 31300 Toulouse, France; (C.R.); (A.F.); (S.E.-S.); (N.L.); (H.G.)
| | - Walter Wahli
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, EVT, INP-Purpan, UPS, 31300 Toulouse, France; (C.R.); (A.F.); (S.E.-S.); (N.L.); (H.G.)
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore 308232, Singapore
- Center for Integrative Genomics, Université de Lausanne, Le Génopode, CH-1015 Lausanne, Switzerland
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Characterization of local gut microbiome and intestinal transcriptome responses to rosiglitazone treatment in diabetic db/db mice. Biomed Pharmacother 2020; 133:110966. [PMID: 33171401 DOI: 10.1016/j.biopha.2020.110966] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/21/2020] [Accepted: 11/01/2020] [Indexed: 02/08/2023] Open
Abstract
The gut microbiota has been implicated in the therapeutic effects of antidiabetics. It is unclear if antidiabetics directly influences gut microbiome-host interaction. Oral peroxisome proliferator-activated receptor-γ (PPAR-γ) agonists, such as rosiglitazone, are potent insulin sensitizers used in the treatment of type 2 diabetes (T2D). PPAR-γ is abundantly expressed in the intestine, making it possible that PPAR-γ agonists directly influences gut microbiome-host homeostasis. The presented study therefore aimed to characterize local gut microbiome and intestinal transcriptome responses in diabetic db/db mice following rosiglitazone treatment. Diabetic B6.BKS(D)-Leprdb/J (db/db) mice (8 weeks of age) received oral dosing once daily with vehicle (n = 12) or rosiglitazone (3 mg/kg, n = 12) for 8 weeks. Gut segments (duodenum, jejunum, ileum, caecum, and colon) were sampled for paired analysis of gut microbiota and host transcriptome signatures using full-length bacterial 16S rRNA sequencing and RNA sequencing (n = 5-6 per group). Treatment with rosiglitazone improved glucose homeostasis without influencing local gut microbiome composition in db/db mice. In contrast, rosiglitazone promoted marked changes in ileal and colonic gene expression signatures associated with peroxisomal and mitochondrial lipid metabolism, carbohydrate utilization and immune regulation. In conclusion, rosiglitazone treatment markedly affected transcriptional markers of intestinal lipid metabolism and immune regulation but had no effect on the gut microbiome in diabetic db/db mice.
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Manickam R, Duszka K, Wahli W. PPARs and Microbiota in Skeletal Muscle Health and Wasting. Int J Mol Sci 2020; 21:ijms21218056. [PMID: 33137899 PMCID: PMC7662636 DOI: 10.3390/ijms21218056] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 10/24/2020] [Accepted: 10/26/2020] [Indexed: 02/06/2023] Open
Abstract
Skeletal muscle is a major metabolic organ that uses mostly glucose and lipids for energy production and has the capacity to remodel itself in response to exercise and fasting. Skeletal muscle wasting occurs in many diseases and during aging. Muscle wasting is often accompanied by chronic low-grade inflammation associated to inter- and intra-muscular fat deposition. During aging, muscle wasting is advanced due to increased movement disorders, as a result of restricted physical exercise, frailty, and the pain associated with arthritis. Muscle atrophy is characterized by increased protein degradation, where the ubiquitin-proteasomal and autophagy-lysosomal pathways, atrogenes, and growth factor signaling all play an important role. Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear receptor family of transcription factors, which are activated by fatty acids and their derivatives. PPARs regulate genes that are involved in development, metabolism, inflammation, and many cellular processes in different organs. PPARs are also expressed in muscle and exert pleiotropic specialized responses upon activation by their ligands. There are three PPAR isotypes, viz., PPARα, -β/δ, and -γ. The expression of PPARα is high in tissues with effective fatty acid catabolism, including skeletal muscle. PPARβ/δ is expressed more ubiquitously and is the predominant isotype in skeletal muscle. It is involved in energy metabolism, mitochondrial biogenesis, and fiber-type switching. The expression of PPARγ is high in adipocytes, but it is also implicated in lipid deposition in muscle and other organs. Collectively, all three PPAR isotypes have a major impact on muscle homeostasis either directly or indirectly. Furthermore, reciprocal interactions have been found between PPARs and the gut microbiota along the gut–muscle axis in both health and disease. Herein, we review functions of PPARs in skeletal muscle and their interaction with the gut microbiota in the context of muscle wasting.
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Affiliation(s)
- Ravikumar Manickam
- Department of Pharmaceutical Sciences, University of South Florida, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, USA;
| | - Kalina Duszka
- Department of Nutritional Sciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria;
| | - Walter Wahli
- Center for Integrative Genomics, University of Lausanne, Le Génopode, CH-1015 Lausanne, Switzerland
- Toxalim, INRAE, Chemin de Tournefeuille 180, F-31027 Toulouse, France
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore 308232, Singapore
- Correspondence:
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Loupy KM, Lee T, Zambrano CA, Elsayed AI, D'Angelo HM, Fonken LK, Frank MG, Maier SF, Lowry CA. Alzheimer's Disease: Protective Effects of Mycobacterium vaccae, a Soil-Derived Mycobacterium with Anti-Inflammatory and Anti-Tubercular Properties, on the Proteomic Profiles of Plasma and Cerebrospinal Fluid in Rats. J Alzheimers Dis 2020; 78:965-987. [PMID: 33074227 DOI: 10.3233/jad-200568] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Alzheimer's disease (AD) is an inflammatory neurodegenerative disease that may be associated with prior bacterial infections. Microbial "old friends" can suppress exaggerated inflammation in response to disease-causing infections or increase clearance of pathogens such as Mycobacterium tuberculosis, which causes tuberculosis (TB). One such "old friend" is Mycobacterium vaccae NCTC 11659, a soil-derived bacterium that has been proposed either as a vaccine for prevention of TB, or as immunotherapy for the treatment of TB when used alongside first line anti-TB drug treatment. OBJECTIVE The goal of this study was to use a hypothesis generating approach to explore the effects of M. vaccae on physiological changes in the plasma and cerebrospinal fluid (CSF). METHODS Liquid chromatography-tandem mass spectrometry-based proteomics were performed in plasma and CSF of adult male rats after immunization with a heat-killed preparation of M. vaccae NCTC 11659 or borate-buffered saline vehicle. Gene enrichment analysis and analysis of protein-protein interactions were performed to integrate physiological network changes in plasma and CSF. We used RT-qPCR to assess immune and metabolic gene expression changes in the hippocampus. RESULTS In both plasma and CSF, immunization with M. vaccae increased proteins associated with immune activation and downregulated proteins corresponding to lipid (including phospholipid and cholesterol) metabolism. Immunization with M. vaccae also increased hippocampal expression of interleukin-4 (IL-4) mRNA, implicating anti-inflammatory effects in the central nervous system. CONCLUSION M. vaccae alters host immune activity and lipid metabolism. These data are consistent with the hypothesis that microbe-host interactions may protect against possible infection-induced, inflammation-related cognitive impairments.
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Affiliation(s)
- Kelsey M Loupy
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Thomas Lee
- Central Analytical Laboratory and Mass Spectrometry Facility, Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | - Cristian A Zambrano
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Ahmed I Elsayed
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Heather M D'Angelo
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA
| | - Laura K Fonken
- Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX, USA
| | - Matthew G Frank
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA.,Center for Neuroscience, University of Colorado Boulder, Boulder, CO, USA
| | - Steven F Maier
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA.,Center for Neuroscience, University of Colorado Boulder, Boulder, CO, USA
| | - Christopher A Lowry
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA.,Center for Neuroscience, University of Colorado Boulder, Boulder, CO, USA.,Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, USA.,Department of Physical Medicine and Rehabilitation and Center for Neuroscience, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.,Veterans Health Administration, Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Rocky Mountain Regional Veterans Affairs Medical Center (RMRVAMC), Aurora, CO, USA.,Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE), Aurora, CO, USA.,Senior Fellow, inVIVO Planetary Health, of the Worldwide Universities Network (WUN), West New York, NJ, USA
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Peroxisome Proliferator-Activated Receptors and Caloric Restriction-Common Pathways Affecting Metabolism, Health, and Longevity. Cells 2020; 9:cells9071708. [PMID: 32708786 PMCID: PMC7407644 DOI: 10.3390/cells9071708] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 02/06/2023] Open
Abstract
Caloric restriction (CR) is a traditional but scientifically verified approach to promoting health and increasing lifespan. CR exerts its effects through multiple molecular pathways that trigger major metabolic adaptations. It influences key nutrient and energy-sensing pathways including mammalian target of rapamycin, Sirtuin 1, AMP-activated protein kinase, and insulin signaling, ultimately resulting in reductions in basic metabolic rate, inflammation, and oxidative stress, as well as increased autophagy and mitochondrial efficiency. CR shares multiple overlapping pathways with peroxisome proliferator-activated receptors (PPARs), particularly in energy metabolism and inflammation. Consequently, several lines of evidence suggest that PPARs might be indispensable for beneficial outcomes related to CR. In this review, we present the available evidence for the interconnection between CR and PPARs, highlighting their shared pathways and analyzing their interaction. We also discuss the possible contributions of PPARs to the effects of CR on whole organism outcomes.
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Tai YK, Ng C, Purnamawati K, Yap JLY, Yin JN, Wong C, Patel BK, Soong PL, Pelczar P, Fröhlich J, Beyer C, Fong CHH, Ramanan S, Casarosa M, Cerrato CP, Foo ZL, Pannir Selvan RM, Grishina E, Degirmenci U, Toh SJ, Richards PJ, Mirsaidi A, Wuertz‐Kozak K, Chong SY, Ferguson SJ, Aguzzi A, Monici M, Sun L, Drum CL, Wang J, Franco‐Obregón A. Magnetic fields modulate metabolism and gut microbiome in correlation with
Pgc‐1α
expression: Follow‐up to an in vitro magnetic mitohormetic study. FASEB J 2020; 34:11143-11167. [DOI: 10.1096/fj.201903005rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 06/07/2020] [Accepted: 06/15/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Yee Kit Tai
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Charmaine Ng
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
| | - Kristy Purnamawati
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Jasmine Lye Yee Yap
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Jocelyn Naixin Yin
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Craig Wong
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Bharati Kadamb Patel
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
| | - Poh Loong Soong
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Pawel Pelczar
- Centre for Transgenic Models University of Basel Basel Switzerland
- Institute of Laboratory Animal Science University of Zürich Zürich Switzerland
| | | | - Christian Beyer
- Centre Suisse d'électronique et de microtechnique, CSEM SA Neuchatel Switzerland
| | - Charlene Hui Hua Fong
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Sharanya Ramanan
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Marco Casarosa
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio” University of Florence Florence Italy
- Institute for Biomechanics ETH Zürich Zürich Switzerland
| | | | - Zi Ling Foo
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Rina Malathi Pannir Selvan
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Elina Grishina
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Ufuk Degirmenci
- Institute of Molecular and Cell Biology, A*STAR Singapore Singapore
| | - Shi Jie Toh
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
| | - Pete J. Richards
- Competence Center for Applied Biotechnology and Molecular Medicine University of Zürich Zürich Switzerland
| | - Ali Mirsaidi
- Competence Center for Applied Biotechnology and Molecular Medicine University of Zürich Zürich Switzerland
| | - Karin Wuertz‐Kozak
- Competence Center for Applied Biotechnology and Molecular Medicine University of Zürich Zürich Switzerland
- Department of Biomedical Engineering Rochester Institute of Technology (RIT) Rochester NY USA
- Cardiovascular Research Institute (CVRI), National University Heart Centre Singapore (NUHCS) Singapore Singapore
| | - Suet Yen Chong
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Cardiovascular Research Institute (CVRI), National University Heart Centre Singapore (NUHCS) Singapore Singapore
| | - Stephen J. Ferguson
- Institute of Molecular and Cell Biology, A*STAR Singapore Singapore
- Competence Center for Applied Biotechnology and Molecular Medicine University of Zürich Zürich Switzerland
| | - Adriano Aguzzi
- Institut für Neuropathologie Universitätsspital Zürich Zürich Switzerland
| | - Monica Monici
- ASAcampus JL, ASA Res. Div. ‐ Dept. of Experimental and Clinical Biomedical Sciences “Mario Serio” University of Florence Florence Italy
| | - Lei Sun
- DUKE‐NUS Graduate Medical School Singapore Singapore Singapore
| | - Chester L. Drum
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Cardiovascular Research Institute (CVRI), National University Heart Centre Singapore (NUHCS) Singapore Singapore
| | - Jiong‐Wei Wang
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Cardiovascular Research Institute (CVRI), National University Heart Centre Singapore (NUHCS) Singapore Singapore
- Department of Physiology Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
| | - Alfredo Franco‐Obregón
- Department of Surgery Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Biolonic Currents Electromagnetic Pulsing Systems Laboratory BICEPS, National University of Singapore Singapore Singapore
- Institute of Molecular and Cell Biology, A*STAR Singapore Singapore
- Department of Physiology Yong Loo Lin School of Medicine, National University of Singapore Singapore Singapore
- Institute for Health Innovation & Technology, iHealthtech National University of Singapore Singapore Singapore
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Teichman EM, O'Riordan KJ, Gahan CGM, Dinan TG, Cryan JF. When Rhythms Meet the Blues: Circadian Interactions with the Microbiota-Gut-Brain Axis. Cell Metab 2020; 31:448-471. [PMID: 32130879 DOI: 10.1016/j.cmet.2020.02.008] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 12/18/2019] [Accepted: 02/10/2020] [Indexed: 12/19/2022]
Abstract
The microbiota-gut-brain axis encompasses a bidirectional mode of communication between the microorganisms residing in our gut, and our brain function and behavior. The composition of the gut microbiota is subject to diurnal variation and is entrained by host circadian rhythms. In turn, a diverse microbiota is essential for optimal regulation of host circadian pathways. Disruption of the cyclical nature of this microbe-host interaction profoundly influences disease pathology and severity. This review aims to summarize current knowledge on this bidirectional relationship. Indeed, the past few years have revealed promising data regarding the relationship between the microbiota-gut-brain axis and circadian rhythms and how they act in concert to influence disease, but further research needs to be done to examine how they coalesce to modulate severity of, and risk for, certain diseases. Moreover, there is a need for a greater understanding of the molecular mechanisms underlying the close relationship between circadian-microbiome-brain interactions.
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Affiliation(s)
| | | | - Cormac G M Gahan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; School of Microbiology, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioral Science, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
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Zhang X, Hou Z, Xu B, Xie C, Wang Z, Yu X, Wu D, Yan X, Dai Q. Dietary Supplementation of ε-Polylysine Beneficially Affects Ileal Microbiota Structure and Function in Ningxiang Pigs. Front Microbiol 2020; 11:544097. [PMID: 33312165 PMCID: PMC7702972 DOI: 10.3389/fmicb.2020.544097] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 10/28/2020] [Indexed: 12/20/2022] Open
Abstract
Intestinal microbiota plays an important role in the health of animals. However, little is known about the gut microbiota in Ningxiang pigs. Thus, we investigated how dietary supplementation with different ε-polylysine concentrations (0, 20, 40, 80, and 160 ppm) affected the ileal microbiota in Ningxiang pigs using a replicated 5 × 5 Latin square method. Each experimental period included 10 days for diet adaptation, 3 days for feces collection and 2 days for digesta collection. The ileal contents were collected and used for sequencing of the V3-V4 hypervariable region of the 16S rRNA gene. The results revealed that ε-polylysine significantly decreased the digestibility of crude protein and crude fiber, as well as the utilization of metabolizable energy (P < 0.05). The relative abundances of 19 bacterial genera significantly increased, while those of 26 genera significantly decreased (P < 0.05). In addition, ε-polylysine increased the abundance of some bacteria (e.g., Faecalibacterium, Bifidobacterium, and lactic acid bacteria) and inhibited some other bacteria (e.g., Micrococcaceae, Acinetobacter, Anaerococcus, Peptoniphilus, Dehalobacterium, Finegoldia, Treponema, and Brevundimonas). Furthermore, based on the 16S rRNA gene data and data from the precalculated GreenGenes database, bacterial communities in the ileal contents exhibited enhanced functional maturation, including changes in the metabolism of carbohydrates, amino acids (e.g., alanine, lysine, tryptophan, cysteine, and methionine), cofactors, and vitamins (e.g., biotin, thiamine, and folate), as well as in the activity of the insulin signaling pathway. This study suggests that ε-polylysine may influence the utilization of feed nutrients by Ningxiang pigs, including proteins, lipids, metabolizable energy, and fiber, by regulating the gut microbiota.
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Affiliation(s)
- Xuelei Zhang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, China
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhenping Hou
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, China
| | - Baoyang Xu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Chunlin Xie
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhichang Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xia Yu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, China
| | - Duanqin Wu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, China
- *Correspondence: Duanqin Wu,
| | - Xianghua Yan
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- Xianghua Yan,
| | - Qiuzhong Dai
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, China
- Qiuzhong Dai,
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Ye G, Zhang L, Wang M, Chen Y, Gu S, Wang K, Leng J, Gu Y, Xie X. The Gut Microbiota in Women Suffering from Gestational Diabetes Mellitus with the Failure of Glycemic Control by Lifestyle Modification. J Diabetes Res 2019; 2019:6081248. [PMID: 31772944 PMCID: PMC6854930 DOI: 10.1155/2019/6081248] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/30/2019] [Accepted: 09/21/2019] [Indexed: 02/07/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is prevalent worldwide, leading to a high risk of significant morbidity for both the mother and offspring with complications. Increasing evidences suggest that gut microbiota plays a role in the pathogenesis of GDM. Lifestyle modification is the cornerstones of GDM treatment. However, a number of patients whose blood glucose is not controlled by lifestyle modification still require exogenous insulin to control blood glucose. No observational study is available about the relationship between the gut microbiota in GDM patients and lifestyle modifications. Thus, we investigated the differences in gut microbiota between GDM patients with successful glycemic control (GDM1) and failure of glycemic control (GDM2) by lifestyle modifications. We sequenced the V3-V4 regions of 16S ribosomal ribonucleic acid (rRNA) gene from stool samples of 52 singleton pregnant women with 24-28 weeks of gestation. Our results showed that Blautia, Eubacterium_hallii_group, and Faecalibacterium in the gut microbiota showed significant differences among the normoglycemic mother, GDM1, and GDM2 groups, respectively. The combined diagnostic performance of Blautia, Eubacterium_hallii_group, and Faecalibacterium in differentiating GDM2 from GDM was considered as the most reasonable identification indicator. Gut bacteria may participate in the pathological development of GDM2 through the peroxisome proliferator-activated receptor (PPAR) signaling pathway. These results indicated that Blautia, Eubacterium_hallii_group, and Faecalibacterium had important characteristic changes in the gut microbiota of women with GDM2.
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Affiliation(s)
- Guangyong Ye
- Women's Hospital, Zhejiang University School of Medicine, China
| | - Long Zhang
- Women's Hospital, Zhejiang University School of Medicine, China
| | - Min Wang
- Women's Hospital, Zhejiang University School of Medicine, China
| | - Yunbo Chen
- The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Silan Gu
- The First Affiliated Hospital, Zhejiang University School of Medicine, China
| | - Keyi Wang
- Central Laboratory, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, China
| | - Jianhang Leng
- Central Laboratory, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, China
| | - Yujia Gu
- Women's Hospital, Zhejiang University School of Medicine, China
| | - Xinyou Xie
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, China
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