1
|
Li Z, Yang T, Wang L, Liu X, Qu Y, Xu Z, Zhang J. Comparison of the effects of Amomum tsaoko and its adulterants on functional dyspepsia rats based on metabolomics analysis. J Pharm Biomed Anal 2024; 246:116208. [PMID: 38735210 DOI: 10.1016/j.jpba.2024.116208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 05/01/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024]
Abstract
Amomum tsaoko (AT) is commonly used in clinical practice to treat abdominal distension and pain. It is also a seasoning for cooking, with the functions of appetizing, invigorating the spleen, and being digestive-promoting. Amomum tsaoko (AT) has three adulterants, Amomum paratsaoko (AP), Amomum koenigii (AK), and Alpinia katsumadai Hayata, because of the confusion in historical classics regarding recorded sources as well as the near geographic distribution and fruit morphological similarities. In this study, we established a functional dyspepsia (FD) rat model and then treated it with the corresponding medicinal solutions AT, AP, AK, and AKH. The gastric emptying rate, intestinal propulsion rate, serum biochemical indicators, histopathological changes, and fecal metabolism were measured. The efficacy and mechanism of AT, AP, AK, and AKH in the treatment of FD were compared. Fecal metabolomics revealed that 20 potential biomarkers were involved in seven significant metabolic pathways in FD rats. These pathways include ubiquinone and other terpenoid-quinone biosynthesis, glycerophospholipid metabolism, tyrosine metabolism, primary bile acid biosynthesis, purine metabolism, folate biosynthesis, and amino sugar and nucleotide sugar metabolism. AP regulates 6 metabolic pathways, 5 metabolic pathways affected by AT, 4 metabolic pathways affected by AK, and 2 metabolic pathways affected by AKH.The above results suggest that the different effects of AT, AP, AK, and AKH on FD rats may be due to their different regulatory effects on the metabolome.
Collapse
Affiliation(s)
- Zhaoju Li
- College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650200, China
| | - Tianmei Yang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650200, China
| | - Li Wang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650200, China
| | - Xiaoli Liu
- College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Yuan Qu
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Zongliang Xu
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650200, China.
| | - Jinyu Zhang
- College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650200, China.
| |
Collapse
|
2
|
Fujii T, Nakagawa Y, Funasaka K, Hirooka Y, Tochio T. Levels of 5α-reductase gene in intestinal lavage fluid decrease with progression of colorectal cancer. J Med Microbiol 2024; 73. [PMID: 38865187 DOI: 10.1099/jmm.0.001834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024] Open
Abstract
Introduction. Colorectal cancer (CRC) is a leading cause of cancer deaths, closely linked to the intestinal microbiota and bile acid metabolism. Secondary bile acids, like deoxycholic and lithocholic acid, are associated with increased CRC risk due to their disruption of vital cellular functions. In contrast, isoallolithocholic acid (isoalloLCA) shows potential health benefits, highlighting the complex role of bile acids in CRC. A specific primer set was previously developed to amplify homologs of the 5α-reductase gene (5ar), which are involved in the biosynthesis of isoalloLCA, thereby enabling the estimation of abundance of 5ar (5ar levels) in the intestine.Hypothesis/Gap Statement. We hypothesized that 5ar levels in the intestine are associated with CRC.Aim. This study aimed to investigate intestinal 5ar levels and compare them across different stages of the adenoma-carcinoma sequence, providing insights into novel strategies for monitoring CRC risk.Methodology. DNA was extracted from intestinal lavage fluids (ILF) collected during 144 colonoscopies. Next-generation sequencing (NGS) was employed to examine the sequence of 5ar homologues, using a specific primer set on DNA from seven selected ILFs - four from carcinoma patients and three from individuals with non-neoplastic mucosa. Additionally, we used quantitative PCR (qPCR) to measure 5ar levels in all 144 DNA samples.Results. We conducted 144 colonoscopies and categorized patients according to the adenoma-cancer sequence: 52 with non-neoplastic mucosa, 69 with adenomas and 23 with carcinoma. Analysis of 292,042 NGS-derived 5ar sequences revealed the seven most prevalent amplicon sequence variants, each 254 base pairs in length. These closely matched or were identical to 5ar sequences in Bacteroides uniformis, Phocaeicola vulgatus and Phocaeicola dorei. Furthermore, qPCR analysis demonstrated significantly lower 5ar levels in the carcinoma group compared to those in the non-neoplastic mucosa group (P = 0.0004). A similar, though not statistically significant, trend was observed in the adenoma group (P = 0.0763), suggesting that 5ar levels decrease as CRC progresses.Conclusion. These findings indicate that PCR-based monitoring of 5ar levels in intestinal samples over time could provide a non-invasive, rapid and cost-effective method for assessing an increased risk of CRC.
Collapse
Affiliation(s)
- Tadashi Fujii
- Department of Gastroenterology and Hepatology, Fujita Health University, Aichi, Japan
- Department of Medical Research on Prebiotics and Probiotics, Fujita Health University, Aichi, Japan
- BIOSIS Lab. Co., Ltd., Aichi, Japan
| | - Yoshihito Nakagawa
- Department of Gastroenterology and Hepatology, Fujita Health University, Aichi, Japan
| | - Kohei Funasaka
- Department of Gastroenterology and Hepatology, Fujita Health University, Aichi, Japan
| | - Yoshiki Hirooka
- Department of Gastroenterology and Hepatology, Fujita Health University, Aichi, Japan
- Department of Medical Research on Prebiotics and Probiotics, Fujita Health University, Aichi, Japan
- BIOSIS Lab. Co., Ltd., Aichi, Japan
| | - Takumi Tochio
- Department of Gastroenterology and Hepatology, Fujita Health University, Aichi, Japan
- Department of Medical Research on Prebiotics and Probiotics, Fujita Health University, Aichi, Japan
- BIOSIS Lab. Co., Ltd., Aichi, Japan
| |
Collapse
|
3
|
Qi L, Ye Z, Lin H. Identification of Differential Metabolites Between
Type 2 Diabetes and Postchronic Pancreatitis Diabetes (Type 3c) Based on an Untargeted Metabolomics Approach. Lab Med 2023; 54:562-573. [PMID: 36864551 DOI: 10.1093/labmed/lmad004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
OBJECTIVE A nontargeted metabolomics approach was established to characterize serum metabolic profile in type 3c diabetes mellitus (T3cDM) secondary to chronic pancreatitis and compare with T2DM. METHODS Forty patients were recruited for metabolite analysis based on liquid chromatography-mass spectrometry. Cluster heatmap and KEGG metabolic pathway enrichment analysis were used to analyze the specific and differential metabolites. The receiver operating characteristics (ROCs) were generated and correlation analysis with clinical data was conducted. RESULTS Metabolites including sphingosine, lipids, carnitine, bile acid, and hippuric acid were found to be different between T2DM and T3cDM, mainly enriched in bile acid biosynthesis, fatty acid biosynthesis, and sphingolipid metabolic pathways. The ROCs were generated with an area under the curve of 0.907 (95% confidence interval, 0.726-1) for the model with 15 metabolites. CONCLUSION T3cDM is characterized by increased sphingosine, carnitine, bile acid, and most lipids, providing novel biomarkers for clinical diagnosis and a future direction in research on pathophysiological mechanisms.
Collapse
Affiliation(s)
- Liang Qi
- Department of Endocrinology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Zheng Ye
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Hao Lin
- Department of Clinical Science and Research, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| |
Collapse
|
4
|
Cheung KCP, Ma J, Loiola RA, Chen X, Jia W. Bile acid-activated receptors in innate and adaptive immunity: targeted drugs and biological agents. Eur J Immunol 2023; 53:e2250299. [PMID: 37172599 DOI: 10.1002/eji.202250299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/10/2023] [Accepted: 05/11/2023] [Indexed: 05/15/2023]
Abstract
Bile acid-activated receptors (BARs) such as a G-protein bile acid receptor 1 and the farnesol X receptor are activated by bile acids (BAs) and have been implicated in the regulation of microbiota-host immunity in the intestine. The mechanistic roles of these receptors in immune signaling suggest that they may also influence the development of metabolic disorders. In this perspective, we provide a summary of recent literature describing the main regulatory pathways and mechanisms of BARs and how they affect both innate and adaptive immune system, cell proliferation, and signaling in the context of inflammatory diseases. We also discuss new approaches for therapy and summarize clinical projects on BAs for the treatment of diseases. In parallel, some drugs that are classically used for other therapeutic purposes and BAR activity have recently been proposed as regulators of immune cells phenotype. Another strategy consists of using specific strains of gut bacteria to regulate BA production in the intestine.
Collapse
Affiliation(s)
- Kenneth C P Cheung
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Jiao Ma
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | | | - Xingxuan Chen
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Wei Jia
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| |
Collapse
|
5
|
Tveter KM, Mezhibovsky E, Wu Y, Roopchand DE. Bile acid metabolism and signaling: Emerging pharmacological targets of dietary polyphenols. Pharmacol Ther 2023; 248:108457. [PMID: 37268113 PMCID: PMC10528343 DOI: 10.1016/j.pharmthera.2023.108457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 04/03/2023] [Accepted: 05/22/2023] [Indexed: 06/04/2023]
Abstract
Beyond their role as emulsifiers of lipophilic compounds, bile acids (BAs) are signaling endocrine molecules that show differential affinity and specificity for a variety of canonical and non-canonical BA receptors. Primary BAs (PBAs) are synthesized in the liver while secondary BAs (SBAs) are gut microbial metabolites of PBA species. PBAs and SBAs signal to BA receptors that regulate downstream pathways of inflammation and energy metabolism. Dysregulation of BA metabolism or signaling has emerged as a feature of chronic disease. Dietary polyphenols are non-nutritive plant-derived compounds associated with decreased risk of metabolic syndrome, type-2 diabetes, hepatobiliary and cardiovascular disease. Evidence suggests that the health promoting effects of dietary polyphenols are linked to their ability to alter the gut microbial community, the BA pool, and BA signaling. In this review we provide an overview of BA metabolism and summarize studies that link the cardiometabolic improvements of dietary polyphenols to their modulation of BA metabolism and signaling pathways, and the gut microbiota. Finally, we discuss approaches and challenges in deciphering cause-effect relationships between dietary polyphenols, BAs, and gut microbes.
Collapse
Affiliation(s)
- Kevin M Tveter
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
| | - Esther Mezhibovsky
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
| | - Yue Wu
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
| | - Diana E Roopchand
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA.
| |
Collapse
|
6
|
Zhou S, Yang L, Hu L, Qin W, Cao Y, Tang Z, Li H, Hu X, Fang Z, Li S, Huang Z, Chen H. Blueberry extract alleviated lipopolysaccharide-induced inflammation responses in mice through activating the FXR/TGR5 signaling pathway and regulating gut microbiota. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4638-4648. [PMID: 36935348 DOI: 10.1002/jsfa.12560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/09/2022] [Accepted: 03/19/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND Blueberry extract (BE) is rich in phenols, especially anthocyanins. Anthocyanins regulate the inflammatory response in mice and may be related to gut microbiota and bile acid receptors. The aim of the present study was to explore the effects of BE on the inflammatory response by regulating gut microbiota and bile acid receptors in mice administered Escherichia coli lipopolysaccharide (LPS). METHOD Thirty male KM mice were randomly divided into three groups: CON (control diet) group; LPS (LPS stimulation) group; and LPS + BE (LPS stimulation, 5% BE intervention) group. RESULTS our results showed that, compared with the LPS group, the addition of BE decreased the level of inflammatory factors in serum and tissues, inhibited the TLR4/MyD88 signaling pathway, protected the intestinal barrier and activated FXR/TGR5, which was related to gut microbiota (especially Akkermansia). The active component (e.g., cyanidin 3-O-glucoside, C3G) in BE may be an important factor in regulating gut microbiota. CONCLUSION BE alleviated the inflammatory response mainly by activating bile acid receptor expression and regulating the gut microbiota; this effect may be related to the composition of bioactive substances in BE. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Shanshan Zhou
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Li Yang
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Liang Hu
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Wen Qin
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Yang Cao
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Zizhong Tang
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Hua Li
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Xinjie Hu
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Zhengfeng Fang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Shanshan Li
- College of Food Science, Sichuan Agricultural University, Yaan, China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Hong Chen
- College of Food Science, Sichuan Agricultural University, Yaan, China
| |
Collapse
|
7
|
Liu J, Sun J, Yu J, Chen H, Zhang D, Zhang T, Ma Y, Zou C, Zhang Z, Ma L, Yu X. Gut microbiome determines therapeutic effects of OCA on NAFLD by modulating bile acid metabolism. NPJ Biofilms Microbiomes 2023; 9:29. [PMID: 37258543 DOI: 10.1038/s41522-023-00399-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 05/18/2023] [Indexed: 06/02/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD), the most common chronic liver disease, had no approved pharmacological agents yet. Obeticholic acid (OCA), a novel bile acid derivative, was demonstrated to ameliorate NAFLD-related manifestations. Regarding the role of gut-liver axis in liver disease development, this study aimed to explore the potential role of gut microbiota in the treatment of OCA in NAFLD mice induced by the high-fat diet (HFD). Antibiotic-induced microbiome depletion (AIMD) and fecal microbiota transplantation (FMT) confirmed the critical role of gut microbiota in OCA treatment for NAFLD by effectively alleviating histopathological lesions and restoring liver function impaired by HFD. Metagenomic analysis indicated that OCA intervention in HFD mice remarkably increased the abundance of Akkermansia muciniphila, Bifidobacterium spp., Bacteroides spp., Alistipes spp., Lactobacillus spp., Streptococcus thermophilus, and Parasutterella excrementihominis. Targeted metabolomics analysis indicated that OCA could modulate host bile acids pool by reducing levels of serum hydrophobic cholic acid (CA) and chenodeoxycholic acid (CDCA), and increasing levels of serum-conjugated bile acids, such as taurodeoxycholic acid (TDCA) and tauroursodesoxycholic acid (TUDCA) in the HFD-fed mice. Strong correlations were observed between differentially abundant microbes and the shifted bile acids. Furthermore, bacteria enriched by OCA intervention exhibited much greater potential in encoding 7alpha-hydroxysteroid dehydrogenase (7α-HSDs) producing secondary bile acids rather than bile salt hydrolases (BSHs) mainly responsible for primary bile acid deconjugation. In conclusion, this study demonstrated that OCA intervention altered gut microbiota composition with specially enriched gut microbes modulating host bile acids, thus effectively alleviating NAFLD in the mice.
Collapse
Affiliation(s)
- Jianjun Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Biomedical Engineering, Kunming Medical University, Kunming, Yunnan, 650500, China
| | - Jiayi Sun
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Jiangkun Yu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China.
| | - Hang Chen
- The First Affiliated Hospital, Yunnan Institute of Digestive Disease, Yunnan Clinical Research Center for Digestive Diseases, Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Dan Zhang
- The First Affiliated Hospital, Yunnan Institute of Digestive Disease, Yunnan Clinical Research Center for Digestive Diseases, Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Tao Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China
| | - Yicheng Ma
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China
| | - Chenggang Zou
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China
| | - Zhigang Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China.
| | - Lanqing Ma
- The First Affiliated Hospital, Yunnan Institute of Digestive Disease, Yunnan Clinical Research Center for Digestive Diseases, Kunming Medical University, Kunming, Yunnan, 650032, China.
| | - Xue Yu
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China.
| |
Collapse
|
8
|
Wei S, He T, Zhao X, Jing M, Li H, Chen L, Zheng R, Zhao Y. Alterations in the gut microbiota and serum metabolomics of spontaneous cholestasis caused by loss of FXR signal in mice. Front Pharmacol 2023; 14:1197847. [PMID: 37284301 PMCID: PMC10239812 DOI: 10.3389/fphar.2023.1197847] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/09/2023] [Indexed: 06/08/2023] Open
Abstract
Background: Farnesoid X receptor (FXR) is a key metabolic target of bile acids (BAs) and is also a target for drugs against several liver diseases. However, the contribution of FXR in the pathogenesis of cholestasis is still not fully understood. The purpose of this study is to provide a comprehensive insight into the metabolic properties of FXR-involved cholestasis in mice. Materials and methods: In this study, an alpha-naphthylisothiocyanate (ANIT)-induced cholestasis mouse model and FXR-/- mice were established to investigate the effect of FXR on cholestasis. The effect of FXR on liver and ileal pathology was evaluated. Simultaneously, Untargeted metabolomics combined with 16s rRNA gene sequencing analysis was applied to reveal the involvement of FXR in the pathogenesis of cholestasis. Results: The results showed that ANIT (75 mg/kg) induced marked cholestasis in WT and FXR -/- mice. It is noteworthy that FXR-/- mice developed spontaneous cholestasis. Compared with WT mice, significant liver and ileal tissue damage were found. In addition, 16s rRNA gene sequencing analysis revealed gut microbiota dysbiosis in FXR-/- mice and ANIT-induced cholestasis mice. Differential biomarkers associated with the pathogenesis of cholestasis caused by FXR knockout were screened using untargeted metabolomics. Notably, Lactobacillus_ johnsonii_FI9785 has a high correlation with the differential biomarkers associated with the pathogenesis and progression of cholestasis caused by FXR knockout. Conclusion: Our results implied that the disorder of the intestinal flora caused by FXR knockout can also interfere with the metabolism. This study provides novel insights into the FXR-related mechanisms of cholestasis.
Collapse
Affiliation(s)
- Shizhang Wei
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Tingting He
- Division of Integrative Medicine, The Fifth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xu Zhao
- Division of Integrative Medicine, The Fifth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Manyi Jing
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Haotian Li
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Lisheng Chen
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Ruimao Zheng
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yanling Zhao
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
9
|
Jamieson PE, Carbonero F, Stevens JF. Dietary (poly)phenols mitigate inflammatory bowel disease: Therapeutic targets, mechanisms of action, and clinical observations. Curr Res Food Sci 2023; 6:100521. [PMID: 37266414 PMCID: PMC10230173 DOI: 10.1016/j.crfs.2023.100521] [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: 02/27/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023] Open
Abstract
Inflammatory bowel diseases (IBD), which include Crohn's disease and ulcerative colitis, are a rapidly growing public health concern worldwide. These diseases are heterogeneous at the clinical, immunological, molecular, genetic, and microbial level, but characteristically involve a disrupted immune-microbiome axis. Shortcomings in conventional treatment options warrant the need for novel therapeutic strategies to mitigate these life-long and relapsing disorders of the gastrointestinal tract. Polyphenols, a diverse group of phytochemicals, have gained attention as candidate treatments due to their array of biological effects. Polyphenols exert broad anti-inflammatory and antioxidant effects through the modulation of cellular signaling pathways and transcription factors important in IBD progression. Polyphenols also bidirectionally modulate the gut microbiome, supporting commensals and inhibiting pathogens. One of the primary means by which gut microbiota interface with the host is through the production of metabolites, which are small molecules produced as intermediate or end products of metabolism. There is growing evidence to support that modulation of the gut microbiome by polyphenols restores microbially derived metabolites critical to the maintenance of intestinal homeostasis that are adversely disrupted in IBD. This review aims to define the therapeutic targets of polyphenols that may be important for mitigation of IBD symptoms, as well as to collate evidence for their clinical use from randomized clinical trials.
Collapse
Affiliation(s)
- Paige E. Jamieson
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, 97331, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
| | - Franck Carbonero
- Department of Nutrition and Exercise Physiology, Washington State University, Spokane, WA, 99202, USA
| | - Jan F. Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, 97331, USA
| |
Collapse
|
10
|
Buchynskyi M, Kamyshna I, Oksenych V, Zavidniuk N, Kamyshnyi A. The Intersection of COVID-19 and Metabolic-Associated Fatty Liver Disease: An Overview of the Current Evidence. Viruses 2023; 15:v15051072. [PMID: 37243158 DOI: 10.3390/v15051072] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
The global population is currently experiencing the impact of the SARS-CoV-2 coronavirus, which has caused the Coronavirus Disease 2019 (COVID-19) pandemic. With our profound comprehension of COVID-19, encompassing the involvement sequence of the respiratory tract, gastrointestinal system, and cardiovascular apparatus, the multiorgan symptoms of this infectious disease have been discerned. Metabolic-associated fatty liver disease (MAFLD), formerly known as non-alcoholic fatty liver disease (NAFLD), is a pervasive public health concern intricately linked with metabolic dysregulation and estimated to afflict one-fourth of the global adult population. The burgeoning focus on the association between COVID-19 and MAFLD is justified by the potential role of the latter as a risk factor for both SARS-CoV-2 infection and the subsequent emergence of severe COVID-19 symptoms. Investigations have suggested that changes in both innate and adaptive immune responses among MAFLD patients may play a role in determining the severity of COVID-19. The remarkable similarities observed in the cytokine pathways implicated in both diseases imply the existence of shared mechanisms governing the chronic inflammatory responses characterizing these conditions. The effect of MAFLD on the severity of COVID-19 illness remains uncertain, as indicated by conflicting results in cohort investigations.
Collapse
Affiliation(s)
- Mykhailo Buchynskyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Iryna Kamyshna
- Department of Medical Rehabilitation, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Valentyn Oksenych
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology (NTNU), 7028 Trondheim, Norway
| | - Nataliia Zavidniuk
- Department of Infectious Diseases with Epidemiology, Dermatology and Venerology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Aleksandr Kamyshnyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| |
Collapse
|
11
|
Collins SL, Stine JG, Bisanz JE, Okafor CD, Patterson AD. Bile acids and the gut microbiota: metabolic interactions and impacts on disease. Nat Rev Microbiol 2023; 21:236-247. [PMID: 36253479 DOI: 10.1038/s41579-022-00805-x] [Citation(s) in RCA: 145] [Impact Index Per Article: 145.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2022] [Indexed: 11/08/2022]
Abstract
Despite decades of bile acid research, diverse biological roles for bile acids have been discovered recently due to developments in understanding the human microbiota. As additional bacterial enzymes are characterized, and the tools used for identifying new bile acids become increasingly more sensitive, the repertoire of bile acids metabolized and/or synthesized by bacteria continues to grow. Additionally, bile acids impact microbiome community structure and function. In this Review, we highlight how the bile acid pool is manipulated by the gut microbiota, how it is dependent on the metabolic capacity of the bacterial community and how external factors, such as antibiotics and diet, shape bile acid composition. It is increasingly important to understand how bile acid signalling networks are affected in distinct organs where the bile acid composition differs, and how these networks impact infectious, metabolic and neoplastic diseases. These advances have enabled the development of therapeutics that target imbalances in microbiota-associated bile acid profiles.
Collapse
Affiliation(s)
- Stephanie L Collins
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - Jonathan G Stine
- Division of Gastroenterology and Hepatology, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
- Department of Public Health Sciences, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
- Penn State Health Liver Center, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
- Penn State Cancer Institute, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Jordan E Bisanz
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - C Denise Okafor
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, USA
- Department of Chemistry, The Pennsylvania State University, University Park, PA, USA
| | - Andrew D Patterson
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, USA.
- Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA, USA.
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, USA.
| |
Collapse
|
12
|
Aseem SO, Hylemon PB, Zhou H. Bile Acids and Biliary Fibrosis. Cells 2023; 12:cells12050792. [PMID: 36899928 PMCID: PMC10001305 DOI: 10.3390/cells12050792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
Biliary fibrosis is the driving pathological process in cholangiopathies such as primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). Cholangiopathies are also associated with cholestasis, which is the retention of biliary components, including bile acids, in the liver and blood. Cholestasis may worsen with biliary fibrosis. Furthermore, bile acid levels, composition and homeostasis are dysregulated in PBC and PSC. In fact, mounting data from animal models and human cholangiopathies suggest that bile acids play a crucial role in the pathogenesis and progression of biliary fibrosis. The identification of bile acid receptors has advanced our understanding of various signaling pathways involved in regulating cholangiocyte functions and the potential impact on biliary fibrosis. We will also briefly review recent findings linking these receptors with epigenetic regulatory mechanisms. Further detailed understanding of bile acid signaling in the pathogenesis of biliary fibrosis will uncover additional therapeutic avenues for cholangiopathies.
Collapse
Affiliation(s)
- Sayed Obaidullah Aseem
- Stravitz-Sanyal Institute for Liver Disease & Metabolic Health, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
- Division of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298, USA
- Correspondence:
| | - Phillip B. Hylemon
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, USA
- Central Virginia Veterans Healthcare System, Richmond, VA 23249, USA
| | - Huiping Zhou
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, USA
- Central Virginia Veterans Healthcare System, Richmond, VA 23249, USA
| |
Collapse
|
13
|
Wang H, Tian Q, Xu Z, Du M, Zhu MJ. Metabolomic profiling for the preventive effects of dietary grape pomace against colorectal cancer. J Nutr Biochem 2023; 116:109308. [PMID: 36868505 DOI: 10.1016/j.jnutbio.2023.109308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 12/22/2022] [Accepted: 02/24/2023] [Indexed: 03/05/2023]
Abstract
Colorectal cancer (CRC) is one of the most common and deadly cancers worldwide. Grape pomace (GP) is a rich source of bioactive compounds with anti-inflammatory, and anticancer effects. We recently found that dietary GP had protective effects against CRC development in the azoxymethane (AOM)/dextran sulfate sodium (DSS) CRC mouse model through suppression of cell proliferation and modulation of DNA methylation. However, the underlying molecular mechanisms associated with changes in metabolites remain unexamined. This study profiled fecal metabolomic changes in a mouse CRC model in response to GP supplementation using gas chromatography-mass spectrometry (GC-MS) based metabolomic analysis. A total of 29 compounds showed significant changes due to GP supplementation, including bile acids, amino acids, fatty acids, phenols/flavonoids, glycerolipids, carbohydrates, organic acids, and others. The major changes in metabolites of feces include increased deoxycholic acid (DCA) and decreased amino acid content. Dietary GP upregulated the expression of farnesoid X receptor (FXR) downstream genes while decreasing fecal urease activity. DNA repair enzyme MutS Homolog 2 (MSH2) was upregulated by GP supplementation. Consistently, γ-H2AX, as a DNA damage marker, decreased in GP supplemented mice. Moreover, MDM2, a protein in the ataxia telangiectasia mutated (ATM) signaling, was decreased by GP supplementation. These data provided valuable metabolic clues for unraveling the protective effects of GP supplementation against CRC development.
Collapse
Affiliation(s)
- Hongbin Wang
- School of Food Science, Washington State University, Pullman, WA 99164, USA,; Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Qiyu Tian
- School of Food Science, Washington State University, Pullman, WA 99164, USA,; Department of Animal Science, Washington State University, Pullman, WA 99164, USA
| | - Zhixin Xu
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Min Du
- Department of Animal Science, Washington State University, Pullman, WA 99164, USA
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA 99164, USA,.
| |
Collapse
|
14
|
Yang J, van Dijk TH, Koehorst M, Havinga R, de Boer JF, Kuipers F, van Zutphen T. Intestinal Farnesoid X Receptor Modulates Duodenal Surface Area but Does Not Control Glucose Absorption in Mice. Int J Mol Sci 2023; 24:ijms24044132. [PMID: 36835544 PMCID: PMC9961586 DOI: 10.3390/ijms24044132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/18/2023] [Accepted: 02/10/2023] [Indexed: 02/22/2023] Open
Abstract
Bile acids facilitate the intestinal absorption of dietary lipids and act as signalling molecules in the maintenance of metabolic homeostasis. Farnesoid X receptor (FXR) is a bile acid-responsive nuclear receptor involved in bile acid metabolism, as well as lipid and glucose homeostasis. Several studies have suggested a role of FXR in the control of genes regulating intestinal glucose handling. We applied a novel dual-label glucose kinetic approach in intestine-specific FXR-/- mice (iFXR-KO) to directly assess the role of intestinal FXR in glucose absorption. Although iFXR-KO mice showed decreased duodenal expression of hexokinase 1 (Hk1) under obesogenic conditions, the assessment of glucose fluxes in these mice did not show a role for intestinal FXR in glucose absorption. FXR activation with the specific agonist GS3972 induced Hk1, yet the glucose absorption rate remained unaffected. FXR activation increased the duodenal villus length in mice treated with GS3972, while stem cell proliferation remained unaffected. Accordingly, iFXR-KO mice on either chow, short or long-term HFD feeding displayed a shorter villus length in the duodenum compared to wild-type mice. These findings indicate that delayed glucose absorption reported in whole-body FXR-/- mice is not due to the absence of intestinal FXR. Yet, intestinal FXR does have a role in the small intestinal surface area.
Collapse
Affiliation(s)
- Jiufang Yang
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
| | - Theo H. van Dijk
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
| | - Martijn Koehorst
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
| | - Rick Havinga
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
| | - Jan Freark de Boer
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
| | - Folkert Kuipers
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
- European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
- Correspondence: (F.K.); (T.v.Z.); Tel.: +31-58-288-2132 (F.K.)
| | - Tim van Zutphen
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, 9700RB Groningen, The Netherlands
- Faculty Campus Fryslân, University of Groningen, 8911CE Leeuwarden, The Netherlands
- Correspondence: (F.K.); (T.v.Z.); Tel.: +31-58-288-2132 (F.K.)
| |
Collapse
|
15
|
Pi Y, Wu Y, Zhang X, Lu D, Han D, Zhao J, Zheng X, Zhang S, Ye H, Lian S, Bai Y, Wang Z, Tao S, Ni D, Zou X, Jia W, Zhang G, Li D, Wang J. Gut microbiota-derived ursodeoxycholic acid alleviates low birth weight-induced colonic inflammation by enhancing M2 macrophage polarization. MICROBIOME 2023; 11:19. [PMID: 36721210 PMCID: PMC9887892 DOI: 10.1186/s40168-022-01458-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/28/2022] [Indexed: 05/31/2023]
Abstract
BACKGROUND Low birth weight (LBW) is associated with intestinal inflammation and dysbiosis after birth. However, the underlying mechanism remains largely unknown. OBJECTIVE In the present study, we aimed to investigate the metabolism, therapeutic potential, and mechanisms of action of bile acids (BAs) in LBW-induced intestinal inflammation in a piglet model. METHODS The fecal microbiome and BA profile between LBW and normal birth weight (NBW) neonatal piglets were compared. Fecal microbiota transplantation (FMT) was employed to further confirm the linkage between microbial BA metabolism and intestinal inflammation. The therapeutic potential of ursodeoxycholic acid (UDCA), a highly differentially abundant BA between LBW and NBW piglets, in alleviating colonic inflammation was evaluated in both LBW piglets, an LBW-FMT mice model, and a DSS-induced colitis mouse model. The underlying cellular and molecular mechanisms by which UDCA suppresses intestinal inflammation were also investigated in both DSS-treated mice and a macrophage cell line. Microbiomes were analyzed by using 16S ribosomal RNA sequencing. Fecal and intestinal BA profiles were measured by using targeted BA metabolomics. Levels of farnesoid X receptor (FXR) were knocked down in J774A.1 cells with small interfering RNAs. RESULTS We show a significant difference in both the fecal microbiome and BA profiles between LBW and normal birth weight animals in a piglet model. Transplantation of the microbiota of LBW piglets to antibiotic-treated mice leads to intestinal inflammation. Importantly, oral administration of UDCA, a major BA diminished in the intestinal tract of LBW piglets, markedly alleviates intestinal inflammation in LBW piglets, an LBW-FMT mice model, and a mouse model of colitis by inducing M2 macrophage polarization. Mechanistically, UDCA reduces inflammatory cytokine production by engaging BA receptor FXR while suppressing NF-κB activation in macrophages. CONCLUSIONS These findings establish a causal relationship between LBW-associated intestinal abnormalities and dysbiosis, suggesting that restoring intestinal health and postnatal maldevelopment of LBW infants may be achieved by targeting intestinal microbiota and BA metabolism. Video Abstract.
Collapse
Affiliation(s)
- Yu Pi
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
- Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- State Key Laboratory of Biological Feed, Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. LTD, Ganzhou, 341000, China
| | - Yujun Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Xiangyu Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Dongdong Lu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Dandan Han
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Xiaojiao Zheng
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Shiyi Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
- Animal Nutrition Group, Wageningen University & Research, PO Box 338, Wageningen, 6700 AH, The Netherlands
| | - Hao Ye
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
- Animal Nutrition Group, Wageningen University & Research, PO Box 338, Wageningen, 6700 AH, The Netherlands
| | - Shuai Lian
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yu Bai
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Zhenyu Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shiyu Tao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Dongjiao Ni
- State Key Laboratory of Biological Feed, Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. LTD, Ganzhou, 341000, China
| | - Xinhua Zou
- State Key Laboratory of Biological Feed, Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. LTD, Ganzhou, 341000, China
| | - Wei Jia
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- University of Hawaii Cancer Center, Honolulu, HI, 96813, USA
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, 999077, China
| | - Guolong Zhang
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Defa Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Junjun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|
16
|
Bile acids and their receptors in regulation of gut health and diseases. Prog Lipid Res 2023; 89:101210. [PMID: 36577494 DOI: 10.1016/j.plipres.2022.101210] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/26/2022]
Abstract
It is well established that bile acids play important roles in lipid metabolism. In recent decades, bile acids have also been shown to function as signaling molecules via interacting with various receptors. Bile acids circulate continuously through the enterohepatic circulation and go through microbial transformation by gut microbes, and thus bile acids metabolism has profound effects on the liver and intestinal tissues as well as the gut microbiota. Farnesoid X receptor and G protein-coupled bile acid receptor 1 are two pivotal bile acid receptors that highly expressed in the intestinal tissues, and they have emerged as pivotal regulators in bile acids metabolism, innate immunity and inflammatory responses. There is considerable interest in manipulating the metabolism of bile acids and the expression of bile acid receptors as this may be a promising strategy to regulate intestinal health and disease. This review aims to summarize the roles of bile acids and their receptors in regulation of gut health and diseases.
Collapse
|
17
|
Li L, Wang Y, Zhao L, Ye G, Shi F, Li Y, Zou Y, Song X, Zhao X, Yin Z, Wu X, Li W, Tang H. Sanhuang xiexin decoction ameliorates secondary liver injury in DSS-induced colitis involve regulating inflammation and bile acid metabolism. JOURNAL OF ETHNOPHARMACOLOGY 2022; 299:115682. [PMID: 36058478 DOI: 10.1016/j.jep.2022.115682] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE SanHuang XieXin decoction (SXD) is a widely applicated traditional Chinese medicine (TCM) with a significant gut-liver axis regulation effect. AIM OF THE STUDY To evaluate the therapeutic effect and elucidate the possible underlying molecular mechanisms of SXD on liver damage secondary to ulcerative colitis (UC) in mice. MATERIALS AND METHODS A model of liver damage secondary to UC was induced by drinking 5% dextran sodium sulfate (DSS) in mice. These mice were treated with one of three doses of SXD or sulfasalazine (SASP), then liver samples were collected and tested. RESULTS The results reveal that SXD treatment reduced liver cells swelling, and inhibited the accumulation of the hepatic-pro-inflammatory cytokines IL-1β and tumor necrosis factor-α (TNF-α) in mice with colitis. In addition, SXD reduced the production of nitric oxide (NO) and malondialdehyde (MDA), and increased the activities of superoxide dismutase (SOD). In inflammation regulating, SXD significantly down regulated the protein expression of MyD88 and p-Iκα, but upregulated Iκα. In bile acid metabolism regulating, SXD significantly down regulated the protein expression of FXR, MRP2, BESP and SHP. Therefore, SXD treatment can regulate the TLR4-NF-κB and bile acid metabolism pathways to alleviate liver inflammation and cholestasis. CONCLUSIONS These results demonstrate that SXD is a potential alternative therapeutic medicine for the treatment of liver damage secondary to colitis.
Collapse
Affiliation(s)
- Lixia Li
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yingjie Wang
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ling Zhao
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Gang Ye
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Fei Shi
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yinglun Li
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanfeng Zou
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xu Song
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xinghong Zhao
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhongqiong Yin
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xueyuan Wu
- Chengdu Agricultural College, Chengdu, 611130, China
| | - Wen Li
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Characteristic Chinese Drug Resources in Southwest China, Chengdu, 611137, China
| | - Huaqiao Tang
- Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| |
Collapse
|
18
|
Zhou M, Wang D, Li X, Cao Y, Yi C, Wiredu Ocansey DK, Zhou Y, Mao F. Farnesoid-X receptor as a therapeutic target for inflammatory bowel disease and colorectal cancer. Front Pharmacol 2022; 13:1016836. [PMID: 36278234 PMCID: PMC9583386 DOI: 10.3389/fphar.2022.1016836] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/20/2022] [Indexed: 12/09/2022] Open
Abstract
Farnesoid-X receptor (FXR), as a nuclear receptor activated by bile acids, is a vital molecule involved in bile acid metabolism. Due to its expression in immune cells, FXR has a significant effect on the function of immune cells and the release of chemokines when immune cells sense changes in bile acids. In addition to its regulation by ligands, FXR is also controlled by post-translational modification (PTM) activities such as acetylation, SUMOylation, and methylation. Due to the high expression of FXR in the liver and intestine, it significantly influences intestinal homeostasis under the action of enterohepatic circulation. Thus, FXR protects the intestinal barrier, resists bacterial infection, reduces oxidative stress, inhibits inflammatory reactions, and also acts as a tumor suppressor to impair the multiplication and invasion of tumor cells. These potentials provide new perspectives on the treatment of intestinal conditions, including inflammatory bowel disease (IBD) and its associated colorectal cancer (CRC). Moreover, FXR agonists on the market have certain organizational heterogeneity and may be used in combination with other drugs to achieve a greater therapeutic effect. This review summarizes current data on the role of FXR in bile acid metabolism, regulation of immune cells, and effects of the PTM of FXR. The functions of FXR in intestinal homeostasis and potential application in the treatment of IBD and CRC are discussed.
Collapse
Affiliation(s)
- Mengjiao Zhou
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Danfeng Wang
- Nanjing Jiangning Hospital, Nanjing, Jiangsu, China
| | - Xiang Li
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ying Cao
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Chengxue Yi
- School of Medical Technology, Zhenjiang College, Zhenjiang, Jiangsu, China
| | - Dickson Kofi Wiredu Ocansey
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
- Directorate of University Health Services, University of Cape Coast, Cape Coast, Ghana
| | - Yuling Zhou
- Nanjing Jiangning Hospital, Nanjing, Jiangsu, China
- *Correspondence: Yuling Zhou, ; Fei Mao,
| | - Fei Mao
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
- *Correspondence: Yuling Zhou, ; Fei Mao,
| |
Collapse
|
19
|
Li Y, Wang K, Ding J, Sun S, Ni Z, Yu C. Influence of the gut microbiota on endometriosis: Potential role of chenodeoxycholic acid and its derivatives. Front Pharmacol 2022; 13:954684. [PMID: 36071850 PMCID: PMC9442031 DOI: 10.3389/fphar.2022.954684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/27/2022] [Indexed: 11/28/2022] Open
Abstract
The gut microbiota (GM) has received extensive attention in recent years, and its key role in the establishment and maintenance of health and in the development of diseases has been confirmed. A strong correlation between the GM and the progression of endometriosis (EMS) has been observed in emerging research. Alterations in the composition and function of the GM have been described in many studies on EMS. In contrast, the GM in the environment of EMS, especially the GM metabolites, such as bile acids and short-chain fatty acids that are related to the pathogenesis of EMS, can promote disease progression. Chenodeoxycholic acid (CDCA), as one of the primary bile acids produced in the liver, is metabolized by various enzymes derived from the GM and is critically important in maintaining intestinal homeostasis and regulating lipid and carbohydrate metabolism and innate immunity. Given that the complexity of CDCA as a signalling molecule and the interaction between the GM and EMS have not been clarified, the role of the CDCA and GM in EMS should be understood from a novel perspective. However, few articles on the relationship between CDCA and EMS have been reviewed. Therefore, we review the available and possible potential links between CDCA, the GM and EMS and put forward the hypothesis that CDCA and its derivative obeticholic acid can improve the symptoms of EMS through the GM.
Collapse
Affiliation(s)
- Yangshuo Li
- Department of Traditional Chinese Gynecology, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Kaili Wang
- Department of Traditional Chinese Gynecology, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jie Ding
- Department of Traditional Chinese Gynecology, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shuai Sun
- Department of Traditional Chinese Gynecology, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Zhexin Ni
- Department of Traditional Chinese Gynecology, The First Affiliated Hospital of Naval Medical University, Shanghai, China
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
- *Correspondence: Zhexin Ni, ; Chaoqin Yu,
| | - Chaoqin Yu
- Department of Traditional Chinese Gynecology, The First Affiliated Hospital of Naval Medical University, Shanghai, China
- *Correspondence: Zhexin Ni, ; Chaoqin Yu,
| |
Collapse
|
20
|
Bile Salt Hydrolase-Competent Probiotics in the Management of IBD: Unlocking the "Bile Acid Code". Nutrients 2022; 14:nu14153212. [PMID: 35956388 PMCID: PMC9370712 DOI: 10.3390/nu14153212] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 01/18/2023] Open
Abstract
Bile acid (BA) species and the gut microbiota (GM) contribute to intestinal mucosa homeostasis. BAs shape the GM and, conversely, intestinal bacteria with bile salt hydrolase (BSH) activity modulate the BA pool composition. The mutual interaction between BAs and intestinal microorganisms also influences mucosal barrier integrity, which is important for inflammatory bowel disease (IBD) pathogenesis, prevention and therapy. High levels of secondary BAs are detrimental for the intestinal barrier and increase the intestinal inflammatory response and dysbiosis. Additionally, a lack of BSH-active bacteria plays a role in intestinal inflammation and BA dysmetabolism. Thus, BSH-competent bacteria in probiotic formulations are being actively studied in IBD. At the same time, studies exploring the modulation of the master regulator of BA homeostasis, the Farnesoid X Receptor (FXR), in intestinal inflammation and how this impacts the GM are gaining significant momentum. Overall, the choice of probiotic supplementation should be a peculiar issue of personalized medicine, considering not only the disease but also the specific BA and metabolic signatures of a given patient.
Collapse
|
21
|
Caliceti C, Punzo A, Silla A, Simoni P, Roda G, Hrelia S. New Insights into Bile Acids Related Signaling Pathways in the Onset of Colorectal Cancer. Nutrients 2022; 14:nu14142964. [PMID: 35889921 PMCID: PMC9317521 DOI: 10.3390/nu14142964] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/12/2022] [Accepted: 07/19/2022] [Indexed: 02/01/2023] Open
Abstract
Colorectal cancer (CRC) ranks as the second among the causes of tumor death worldwide, with an estimation of 1.9 million new cases in 2020 and more than 900,000 deaths. This rate might increase by 60% over the next 10 years. These data are unacceptable considering that CRC could be successfully treated if diagnosed in the early stages. A high-fat diet promotes the hepatic synthesis of bile acids (BAs) increasing their delivery to the colonic lumen and numerous scientific reports correlate BAs, especially secondary BAs, with CRC incidence. We reviewed the physicochemical and biological characteristics of BAs, focusing on the major pathways involved in CRC risk and progression. We specifically pointed out the role of BAs as signaling molecules and the tangled relationships among their nuclear and membrane receptors with the big bang of molecular and cellular events that trigger CRC occurrence.
Collapse
Affiliation(s)
- Cristiana Caliceti
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
- Interdepartmental Centre for Renewable Sources, Environment, Sea and Energy (CIRI FRAME), Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
- Biostructures and Biosystems National Institute (INBB), 00136 Rome, Italy;
- Correspondence:
| | - Angela Punzo
- Department of Chemistry “Giacomo Ciamician” Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy;
| | - Alessia Silla
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy; (A.S.); (S.H.)
| | - Patrizia Simoni
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy;
| | - Giulia Roda
- Biostructures and Biosystems National Institute (INBB), 00136 Rome, Italy;
| | - Silvana Hrelia
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy; (A.S.); (S.H.)
| |
Collapse
|
22
|
Panzitt K, Zollner G, Marschall HU, Wagner M. Recent advances on FXR-targeting therapeutics. Mol Cell Endocrinol 2022; 552:111678. [PMID: 35605722 DOI: 10.1016/j.mce.2022.111678] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 12/25/2022]
Abstract
The bile acid receptor FXR has emerged as a bona fide drug target for chronic cholestatic and metabolic liver diseases, ahead of all non-alcoholic fatty liver disease (NAFLD). FXR is highly expressed in the liver and intestine and activation at both sites differentially contributes to its desired metabolic effects. Unrestricted FXR activation, however, also comes along with undesired effects such as a pro-atherogenic lipid profile, pruritus and hepatocellular toxicity under certain conditions. Several pre-clinical studies have confirmed the potency of FXR activation for cholestatic and metabolic liver diseases, but overall it remains still open whether selective activation of intestinal FXR is advantageous over pan-FXR activation and whether restricted or modulated FXR activation can limit some of the side effects. Even more, FXR antagonist also bear the potential as intestinal-selective drugs in NAFLD models. In this review we will discuss the molecular prerequisites for FXR activation, pan-FXR activation and intestinal FXR in/activation from a therapeutic point of view, different steroidal and non-steroidal FXR agonists, ways to restrict FXR activation and finally what we have learned from pre-clinical models and clinical trials with different FXR therapeutics.
Collapse
Affiliation(s)
- Katrin Panzitt
- Research Unit for Translational Nuclear Receptor Research, Medical University Graz, Graz, Austria; Division of Gastroenterology and Hepatology, Medical University Graz, Graz, Austria
| | - Gernot Zollner
- Division of Gastroenterology and Hepatology, Medical University Graz, Graz, Austria
| | - Hanns-Ulrich Marschall
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Martin Wagner
- Research Unit for Translational Nuclear Receptor Research, Medical University Graz, Graz, Austria; Division of Gastroenterology and Hepatology, Medical University Graz, Graz, Austria.
| |
Collapse
|
23
|
Role of bile acids and their receptors in gastrointestinal and hepatic pathophysiology. Nat Rev Gastroenterol Hepatol 2022; 19:432-450. [PMID: 35165436 DOI: 10.1038/s41575-021-00566-7] [Citation(s) in RCA: 112] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/03/2021] [Indexed: 02/06/2023]
Abstract
Bile acids (BAs) can regulate their own metabolism and transport as well as other key aspects of metabolic homeostasis via dedicated (nuclear and G protein-coupled) receptors. Disrupted BA transport and homeostasis results in the development of cholestatic disorders and contributes to a wide range of liver diseases, including nonalcoholic fatty liver disease and hepatocellular and cholangiocellular carcinoma. Furthermore, impaired BA homeostasis can also affect the intestine, contributing to the pathogenesis of irritable bowel syndrome, inflammatory bowel disease, and colorectal and oesophageal cancer. Here, we provide a summary of the role of BAs and their disrupted homeostasis in the development of gastrointestinal and hepatic disorders and present novel insights on how targeting BA pathways might contribute to novel treatment strategies for these disorders.
Collapse
|
24
|
Bertolini A, Fiorotto R, Strazzabosco M. Bile acids and their receptors: modulators and therapeutic targets in liver inflammation. Semin Immunopathol 2022; 44:547-564. [PMID: 35415765 PMCID: PMC9256560 DOI: 10.1007/s00281-022-00935-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/25/2022] [Indexed: 12/11/2022]
Abstract
Bile acids participate in the intestinal emulsion, digestion, and absorption of lipids and fat-soluble vitamins. When present in high concentrations, as in cholestatic liver diseases, bile acids can damage cells and cause inflammation. After the discovery of bile acids receptors about two decades ago, bile acids are considered signaling molecules. Besides regulating bile acid, xenobiotic, and nutrient metabolism, bile acids and their receptors have shown immunomodulatory properties and have been proposed as therapeutic targets for inflammatory diseases of the liver. This review focuses on bile acid-related signaling pathways that affect inflammation in the liver and provides an overview of the preclinical and clinical applications of modulators of these pathways for the treatment of cholestatic and autoimmune liver diseases.
Collapse
Affiliation(s)
- Anna Bertolini
- Section of Digestive Diseases, Yale Liver Center, Yale School of Medicine, PO Box 208019, New Haven, CT, 06520-8019, USA
- Department of Pediatrics, Section of Molecular Metabolism and Nutrition, University Medical Center Groningen, Groningen, The Netherlands
| | - Romina Fiorotto
- Section of Digestive Diseases, Yale Liver Center, Yale School of Medicine, PO Box 208019, New Haven, CT, 06520-8019, USA
| | - Mario Strazzabosco
- Section of Digestive Diseases, Yale Liver Center, Yale School of Medicine, PO Box 208019, New Haven, CT, 06520-8019, USA.
| |
Collapse
|
25
|
Deng Y, Luo X, Li X, Xiao Y, Xu B, Tong H. Screening of Biomarkers and Toxicity Mechanisms of Rifampicin-Induced Liver Injury Based on Targeted Bile Acid Metabolomics. Front Pharmacol 2022; 13:925509. [PMID: 35754491 PMCID: PMC9226894 DOI: 10.3389/fphar.2022.925509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
Rifampicin (RIF) is a critical first-line drug for tuberculosis. However, long-term or high-dose treatment with RIF can induce severe liver injury; the underlying mechanism of this effect has not yet been clarified. This study was performed to screen reliable and sensitive biomarkers in serum bile acids (BAs) using targeted BA metabolomics and evaluate the toxicity mechanisms underlying RIF-induced liver injury through the farnesoid x receptor (Fxr)-multidrug resistance-associated proteins (Mrps) signaling pathway. Thirty-two Institute of Cancer Research mice were randomly divided into four groups, and normal saline, isoniazid 75 mg/kg + RIF 177 mg/kg (RIF-L), RIF-L, or RIF 442.5 mg/kg (RIF-H) was orally administered by gavage for 21 days. After treatment, changes in serum biochemical parameters, hepatic pathological conditions, BA levels, Fxr expression, and BA transporter levels were measured. RIF caused notable liver injury and increased serum cholic acid (CA) levels. Decline in the serum secondary BAs (deoxycholic acid, lithocholic acid, taurodeoxycholic acid, and tauroursodeoxycholic acid) levels led to liver injury in mice. Serum BAs were subjected to metabolomic assessment using partial least squares discriminant and receiver operating characteristic curve analyses. CA, DCA, LCA, TDCA, and TUDCA are potential biomarkers for early detection of RIF-induced liver injury. Furthermore, RIF-H reduced hepatic BA levels and elevated serum BA levels by suppressing the expression of Fxr and Mrp2 messenger ribonucleic acid (mRNA) while inducing that of Mrp3 and Mrp4 mRNAs. These findings provide evidence for screening additional biomarkers based on targeted BA metabolomics and provide further insights into the pathogenesis of RIF-induced liver injury.
Collapse
Affiliation(s)
- Yang Deng
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, China.,The Clinical Application Research Institute of Antibiotics in Changsha, Changsha, China
| | - Xilin Luo
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, China
| | - Xin Li
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, China.,The Clinical Application Research Institute of Antibiotics in Changsha, Changsha, China
| | - Yisha Xiao
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, China
| | - Bing Xu
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, China.,The Clinical Application Research Institute of Antibiotics in Changsha, Changsha, China
| | - Huan Tong
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, China.,The Clinical Application Research Institute of Antibiotics in Changsha, Changsha, China
| |
Collapse
|
26
|
Reduced Cytokine Tumour Necrosis Factor by Pharmacological Intervention in a Preclinical Study. Biomolecules 2022; 12:biom12070877. [PMID: 35883432 PMCID: PMC9313251 DOI: 10.3390/biom12070877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023] Open
Abstract
Recent preclinical studies in our laboratory have shown that the bile acid profile is altered during diabetes development and such alteration has been linked to the diabetes-associated inflammatory profile. Hence, this study aimed to investigate if the first-line antidiabetic drug metformin will alter the bile acid profile and diabetes-associated inflammation in a murine model of pre-type 2 diabetes. C57 mice were randomly allocated into three equal groups of eight. Group One was given a low-fat diet (LFD), Group Two was given a high-fat diet (HFD), and Group Three was given an HFD and, upon prediabetes confirmation, daily oral metformin for one month. Blood glucose, glycated haemoglobin, drug concentrations in tissues and faeces, and the inflammatory and bile acid profiles were measured. Metformin showed wide tissue distribution and was also present in faeces. The bile acid profile showed significant alteration due to prediabetes, and although metformin did not completely normalize it, it did exert significant effects on both the bile acid and the inflammatory profiles, suggesting a direct and, to some extent, positive impact, particularly on the diabetes-associated inflammatory profile.
Collapse
|
27
|
Luo W, Guo S, Zhou Y, Zhao J, Wang M, Sang L, Chang B, Wang B. Hepatocellular Carcinoma: How the Gut Microbiota Contributes to Pathogenesis, Diagnosis, and Therapy. Front Microbiol 2022; 13:873160. [PMID: 35572649 PMCID: PMC9092458 DOI: 10.3389/fmicb.2022.873160] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/05/2022] [Indexed: 12/12/2022] Open
Abstract
The gut microbiota is gaining increasing attention, and the concept of the "gut-liver axis" is gradually being recognized. Leaky gut resulting from injury and/or inflammation can cause the translocation of flora to the liver. Microbiota-associated metabolites and components mediate the activation of a series of signalling pathways, thereby playing an important role in the development of hepatocellular carcinoma (HCC). For this reason, targeting the gut microbiota in the diagnosis, prevention, and treatment of HCC holds great promise. In this review, we summarize the gut microbiota and the mechanisms by which it mediates HCC development, and the characteristic alterations in the gut microbiota during HCC pathogenesis. Furthermore, we propose several strategies to target the gut microbiota for the prevention and treatment of HCC, including antibiotics, probiotics, faecal microbiota transplantation, and immunotherapy.
Collapse
Affiliation(s)
- Wenyu Luo
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China
- The Second Clinical College, China Medical University, Shenyang, China
| | - Shiqi Guo
- The Second Clinical College, China Medical University, Shenyang, China
| | - Yang Zhou
- The Second Clinical College, China Medical University, Shenyang, China
| | - Jingwen Zhao
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Mengyao Wang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lixuan Sang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bing Chang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Bingyuan Wang
- Department of Geriatric Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| |
Collapse
|
28
|
Joyce SA, O'Malley D. Bile acids, bioactive signalling molecules in interoceptive gut-to-brain communication. J Physiol 2022; 600:2565-2578. [PMID: 35413130 PMCID: PMC9325455 DOI: 10.1113/jp281727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/07/2022] [Indexed: 11/08/2022] Open
Abstract
Aside from facilitating solubilisation and absorption of dietary lipids and lipid-soluble vitamins, amphipathic bile acids (BAs) also act as bioactive signalling molecules. A plethora of conjugated or un-conjugated primary and bacterially-modified secondary BA moieties have been identified, with significant divergence between species. These molecules are excreted into the external environment of the intestinal lumen, yet nuclear and membrane receptors that are sensitive to BAs are expressed internally in the liver, intestinal and neural tissues, amongst others. The diversity of BAs and receptors underpins the multitude of distinct bioactive functions attributed to BAs, but also hampers elucidation of the physiological mechanisms underpinning these actions. In this topical review, we have considered the potential of BAs as cross-barrier signalling molecules that contribute to interoceptive pathways informing the central nervous system of environmental changes in the gut lumen. Activation of BAs on FGF19 -secreting enterocytes, enteroendocrine cells coupled to sensory nerves or intestinal immune cells would facilitate indirect signalling, whereas direct activation of BA receptors in the brain are likely to occur primarily under pathophysiological conditions when concentrations of BAs are elevated. Abstract figure legend The figure illustrates the microbial modification of hepatic primary bile acids into secondary bile acids. In addition to facilitating lipid digestion and absorption, bile acids act as bioactive signalling molecules by binding to bile acid receptors expressed on enterocytes, neural afferent-coupled enteroendocrine cells and immune cells. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Susan A Joyce
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Dervla O'Malley
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,Department of Physiology, College of Medicine and Health, University College Cork, Cork, Ireland
| |
Collapse
|
29
|
Huang X, Fan M, Huang W. Pleiotropic roles of FXR in liver and colorectal cancers. Mol Cell Endocrinol 2022; 543:111543. [PMID: 34995680 PMCID: PMC8818033 DOI: 10.1016/j.mce.2021.111543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 12/01/2022]
Abstract
Nuclear receptor farnesoid X receptor (FXR) is generally considered a cell protector of enterohepatic tissues and a suppressor of liver cancer and colorectal carcinoma (CRC). Loss or reduction of FXR expression occurs during carcinogenesis, and the FXR level is inversely associated with the aggressive behaviors of the malignancy. Global deletion of FXR and tissue-specific deletion of FXR display distinct effects on tumorigenesis. Epigenetic silencing and inflammatory context are two main contributors to impaired FXR expression and activity. FXR exerts its antitumorigenic function via the following mechanisms: 1) FXR regulates multiple metabolic processes, notably bile acid homeostasis; 2) FXR antagonizes hepatic and enteric inflammation; 3) FXR impedes aberrant activation of some cancer-related pathways; and 4) FXR downregulates a number of oncogenes while upregulating some tumor suppressor genes. Restoring FXR functions via its agonists provides a therapeutic approach for patients with liver cancer and CRC. However, an in-depth understanding of the species-specific pharmacological effects is a prerequisite for assessing the clinical safety and efficacy of FXR agonists in human cancer treatment.
Collapse
Affiliation(s)
- Xiongfei Huang
- Department of Pathology and Institute of Oncology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, 350004, PR China; Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, 350108, PR China.
| | - Mingjie Fan
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA, 91010, USA
| | - Wendong Huang
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA, 91010, USA.
| |
Collapse
|
30
|
Wang J, Bakker W, Zheng W, de Haan L, Rietjens IMCM, Bouwmeester H. Exposure to the mycotoxin deoxynivalenol reduces the transport of conjugated bile acids by intestinal Caco-2 cells. Arch Toxicol 2022; 96:1473-1482. [PMID: 35224661 PMCID: PMC9013688 DOI: 10.1007/s00204-022-03256-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/17/2022] [Indexed: 11/25/2022]
Abstract
Conjugated bile acids are synthesized in liver and subsequently secreted into the intestinal lumen from which they are actively reabsorbed and transported back to liver. The efficient enterohepatic circulation of conjugated bile acids is important to maintain homeostasis. The mycotoxin deoxynivalenol (DON) is a fungal secondary metabolite that contaminates cereal food. Upon human exposure, it can cause intestinal dysfunction. We explored the effects of DON exposure on the intestinal absorption of conjugated bile acids and the expression of bile acid transporters using an in vitro model based on Caco-2 cell layers grown in transwells. Our study shows that the transport rate of taurocholic acid (TCA) is decreased after 48-h pre-exposure of the Caco-2 cells to 2 µM DON, which is a realistic intestinal DON concentration. Exposure to DON downregulates expression of the genes coding for the apical sodium-dependent bile acid transporter (ASBT), the ileal bile acid-binding protein (IBABP) and the organic solute transporter α (OSTα), and it counteracts the agonist activity of Farnesoid X receptor (FXR) agonist GW4064 on these genes. In addition, the transport of ten taurine or glycine-conjugated bile acids in a physiological relevant mixture by the intestinal Caco-2 cell layers was decreased after pre-exposure of the cells to DON, pointing at a potential for DON-mediated accumulation of the conjugated bile acids at the intestinal luminal side. Together the results reveal that DON inhibits intestinal bile acid reabsorption by reducing the expression of bile acid transporters thereby affecting bile acid intestinal kinetics, leading to bile acid malabsorption in the intestine. Our study provides new insights into the hazards of DON exposure.
Collapse
Affiliation(s)
- Jingxuan Wang
- Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
| | - Wouter Bakker
- Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Weijia Zheng
- Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Laura de Haan
- Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Ivonne M C M Rietjens
- Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Hans Bouwmeester
- Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| |
Collapse
|
31
|
Isidori M, Corbee RJ, Trabalza-Marinucci M. Nonpharmacological Treatment Strategies for the Management of Canine Chronic Inflammatory Enteropathy—A Narrative Review. Vet Sci 2022; 9:vetsci9020037. [PMID: 35202290 PMCID: PMC8878421 DOI: 10.3390/vetsci9020037] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 02/04/2023] Open
Abstract
Chronic inflammatory enteropathy (CIE) refers to a heterogeneous group of idiopathic diseases of the dog characterised by persistent gastrointestinal (GI) clinical signs. If conventional dietary treatment alone would be unsuccessful, management of CIE is traditionally attained by the use of pharmaceuticals, such as antibiotics and immunosuppressive drugs. While being rather effective, however, these drugs are endowed with side effects, which may impact negatively on the animal’s quality of life. Therefore, novel, safe and effective therapies for CIE are highly sought after. As gut microbiota imbalances are often associated with GI disorders, a compelling rationale exists for the use of nonpharmacological methods of microbial manipulation in CIE, such as faecal microbiota transplantation and administration of pre-, pro-, syn- and postbiotics. In addition to providing direct health benefits to the host via a gentle modulation of the intestinal microbiota composition and function, these treatments may also possess immunomodulatory and epithelial barrier-enhancing actions. Likewise, intestinal barrier integrity, along with mucosal inflammation, are deemed to be two chief therapeutic targets of mesenchymal stem cells and selected vegetable-derived bioactive compounds. Although pioneering studies have revealed encouraging findings regarding the use of novel treatment agents in CIE, a larger body of research is needed to address fully their mode of action, efficacy and safety.
Collapse
Affiliation(s)
- Marco Isidori
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy;
- Correspondence:
| | - Ronald Jan Corbee
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Yalelaan 108, 3584 CM Utrecht, The Netherlands;
| | | |
Collapse
|
32
|
Wang Y, Zheng L, Zhou Z, Yao D, Huang Y, Liu B, Duan Y, Li Y. Review article: insights into the bile acid-gut microbiota axis in intestinal failure-associated liver disease-redefining the treatment approach. Aliment Pharmacol Ther 2022; 55:49-63. [PMID: 34713470 DOI: 10.1111/apt.16676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/04/2021] [Accepted: 10/15/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Intestinal failure-associated liver disease (IFALD) increases mortality of patients with intestinal failure (IF), but lacks effective prevention or treatment approaches. Bile acids, gut microbiota and the host have close and complex interactions, which play a central role in modulating host immune and metabolic homeostasis. Increasing evidence suggests that derangement of the bile acid-gut microbiota (BA-GM) axis contributes to the development of IFALD. AIMS To review the BA-GM axis in the pathogenesis and clinical applications of IFALD, and to explore future directions for effective disease management. METHODS We conducted a literature search on bile acid and gut microbiota in IF and liver diseases. RESULTS The BA-GM axis demonstrates a unique IF signature manifesting as an increase in primary-to-secondary bile acids ratio, disturbed enterohepatic circulation, blunted bile acid signalling pathways, gut microbial dysbiosis, and altered microbial metabolic outputs. Bile acids and gut microbiota shape the compositional and functional alterations of each other in IF; collaboratively, they promote immune dysfunction and metabolic aberration in the liver. Diagnostic markers and treatments targeting the BA-GM axis showed promising potential in the management of IFALD. CONCLUSIONS Bile acids and gut microbiota play a central role in the development of IFALD and make attractive biomarkers as well as therapeutic targets. A multitarget, individualised therapy aiming at different parts of the BA-GM axis may provide optimal clinical benefits and requires future investigation.
Collapse
Affiliation(s)
- Yaoxuan Wang
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Lei Zheng
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Zhiyuan Zhou
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Danhua Yao
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Yuhua Huang
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Bin Liu
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Yantao Duan
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Yousheng Li
- Department of General Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| |
Collapse
|
33
|
Vlasov IN, Alieva AK, Novosadova EV, Arsenyeva EL, Rosinskaya AV, Partevian SA, Grivennikov IA, Shadrina MI. Transcriptome Analysis of Induced Pluripotent Stem Cells and Neuronal Progenitor Cells, Derived from Discordant Monozygotic Twins with Parkinson's Disease. Cells 2021; 10:3478. [PMID: 34943986 PMCID: PMC8700621 DOI: 10.3390/cells10123478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/02/2021] [Accepted: 12/05/2021] [Indexed: 12/13/2022] Open
Abstract
Parkinson's Disease (PD) is a widespread severe neurodegenerative disease that is characterized by pronounced deficiency of the dopaminergic system and disruption of the function of other neuromodulator systems. Although heritable genetic factors contribute significantly to PD pathogenesis, only a small percentage of sporadic cases of PD can be explained using known genetic risk factors. Due to that, it could be inferred that changes in gene expression could be important for explaining a significant percentage of PD cases. One of the ways to investigate such changes, while minimizing the effect of genetic factors on experiment, are the study of PD discordant monozygotic twins. In the course of the analysis of transcriptome data obtained from IPSC and NPCs, 20 and 1906 differentially expressed genes were identified respectively. We have observed an overexpression of TNF in NPC cultures, derived from twin with PD. Through investigation of gene interactions and gene involvement in biological processes, we have arrived to a hypothesis that TNF could play a crucial role in PD-related changes occurring in NPC derived from twins with PD, and identified INHBA, WNT7A and DKK1 as possible downstream effectors of TNF.
Collapse
Affiliation(s)
- Ivan N. Vlasov
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, 2 Kurchatova Sq., 123182 Moscow, Russia; (A.K.A.); (E.V.N.); (E.L.A.); (S.A.P.); (I.A.G.); (M.I.S.)
| | - Anelya Kh. Alieva
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, 2 Kurchatova Sq., 123182 Moscow, Russia; (A.K.A.); (E.V.N.); (E.L.A.); (S.A.P.); (I.A.G.); (M.I.S.)
| | - Ekaterina V. Novosadova
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, 2 Kurchatova Sq., 123182 Moscow, Russia; (A.K.A.); (E.V.N.); (E.L.A.); (S.A.P.); (I.A.G.); (M.I.S.)
| | - Elena L. Arsenyeva
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, 2 Kurchatova Sq., 123182 Moscow, Russia; (A.K.A.); (E.V.N.); (E.L.A.); (S.A.P.); (I.A.G.); (M.I.S.)
| | - Anna V. Rosinskaya
- State Public Health Institution Primorsk Regional Clinical Hospital No. 1, 57 Aleutskaya St., 690091 Vladivostok, Russia;
| | - Suzanna A. Partevian
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, 2 Kurchatova Sq., 123182 Moscow, Russia; (A.K.A.); (E.V.N.); (E.L.A.); (S.A.P.); (I.A.G.); (M.I.S.)
| | - Igor A. Grivennikov
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, 2 Kurchatova Sq., 123182 Moscow, Russia; (A.K.A.); (E.V.N.); (E.L.A.); (S.A.P.); (I.A.G.); (M.I.S.)
| | - Maria I. Shadrina
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, 2 Kurchatova Sq., 123182 Moscow, Russia; (A.K.A.); (E.V.N.); (E.L.A.); (S.A.P.); (I.A.G.); (M.I.S.)
| |
Collapse
|
34
|
Anderson KM, Gayer CP. The Pathophysiology of Farnesoid X Receptor (FXR) in the GI Tract: Inflammation, Barrier Function and Innate Immunity. Cells 2021; 10:cells10113206. [PMID: 34831429 PMCID: PMC8624027 DOI: 10.3390/cells10113206] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 11/12/2021] [Indexed: 12/12/2022] Open
Abstract
The Farnesoid-X Receptor, FXR, is a nuclear bile acid receptor. Its originally described function is in bile acid synthesis and regulation within the liver. More recently, however, FXR has been increasingly appreciated for its breadth of function and expression across multiple organ systems, including the intestine. While FXR’s role within the liver continues to be investigated, increasing literature indicates that FXR has important roles in responding to inflammation, maintaining intestinal epithelial barrier function, and regulating immunity within the gastrointestinal (GI) tract. Given the complicated and multi-factorial nature of intestinal barrier dysfunction, it is not surprising that FXR’s role appears equally complicated and not without conflicting data in different model systems. Recent work has suggested translational applications of FXR modulation in GI pathology; however, a better understanding of FXR physiology is necessary for these treatments to gain widespread use in human disease. This review aims to discuss current scientific work on the role of FXR within the GI tract, specifically in its role in intestinal inflammation, barrier function, and immune response, while also exploring areas of controversy.
Collapse
Affiliation(s)
- Kemp M. Anderson
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA;
- Division of Pediatric Surgery, Childrens Hospital Los Angeles, Los Angeles, CA 90027, USA
| | - Christopher P. Gayer
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA;
- Division of Pediatric Surgery, Childrens Hospital Los Angeles, Los Angeles, CA 90027, USA
- Correspondence: ; Tel.: +1-323-361-4974
| |
Collapse
|
35
|
Malesza IJ, Malesza M, Walkowiak J, Mussin N, Walkowiak D, Aringazina R, Bartkowiak-Wieczorek J, Mądry E. High-Fat, Western-Style Diet, Systemic Inflammation, and Gut Microbiota: A Narrative Review. Cells 2021; 10:cells10113164. [PMID: 34831387 PMCID: PMC8619527 DOI: 10.3390/cells10113164] [Citation(s) in RCA: 200] [Impact Index Per Article: 66.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/07/2021] [Accepted: 11/12/2021] [Indexed: 12/12/2022] Open
Abstract
The gut microbiota is responsible for recovering energy from food, providing hosts with vitamins, and providing a barrier function against exogenous pathogens. In addition, it is involved in maintaining the integrity of the intestinal epithelial barrier, crucial for the functional maturation of the gut immune system. The Western diet (WD)—an unhealthy diet with high consumption of fats—can be broadly characterized by overeating, frequent snacking, and a prolonged postprandial state. The term WD is commonly known and intuitively understood. However, the strict digital expression of nutrient ratios is not precisely defined. Based on the US data for 1908–1989, the calory intake available from fats increased from 32% to 45%. Besides the metabolic aspects (hyperinsulinemia, insulin resistance, dyslipidemia, sympathetic nervous system and renin-angiotensin system overstimulation, and oxidative stress), the consequences of excessive fat consumption (high-fat diet—HFD) comprise dysbiosis, gut barrier dysfunction, increased intestinal permeability, and leakage of toxic bacterial metabolites into the circulation. These can strongly contribute to the development of low-grade systemic inflammation. This narrative review highlights the most important recent advances linking HFD-driven dysbiosis and HFD-related inflammation, presents the pathomechanisms for these phenomena, and examines the possible causative relationship between pro-inflammatory status and gut microbiota changes.
Collapse
Affiliation(s)
- Ida Judyta Malesza
- Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, 61-701 Poznań, Poland; (I.J.M.); (J.W.)
| | - Michał Malesza
- Department of Physiology, Poznan University of Medical Sciences, 61-701 Poznań, Poland; (M.M.); (J.B.-W.)
| | - Jarosław Walkowiak
- Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences, 61-701 Poznań, Poland; (I.J.M.); (J.W.)
| | - Nadiar Mussin
- Department of General Surgery, West Kazakhstan Marat Ospanov Medical University, Aktobe 030012, Kazakhstan;
| | - Dariusz Walkowiak
- Department of Organization and Management in Health Care, Poznan University of Medical Sciences, 61-701 Poznań, Poland;
| | - Raisa Aringazina
- Department of Internal Diseases No. 1, West Kazakhstan Marat Ospanov Medical University, Aktobe 030012, Kazakhstan;
| | | | - Edyta Mądry
- Department of Physiology, Poznan University of Medical Sciences, 61-701 Poznań, Poland; (M.M.); (J.B.-W.)
- Correspondence:
| |
Collapse
|
36
|
Spot-light on microbiota in obesity and cancer. Int J Obes (Lond) 2021; 45:2291-2299. [PMID: 34363002 DOI: 10.1038/s41366-021-00866-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 03/26/2021] [Accepted: 05/18/2021] [Indexed: 02/06/2023]
Abstract
Over the last few years, the complexity and diversity of gut microbiota within and across individuals has been detailed in relation to human health. Further, understanding of the bidirectional association between gut microbiota and metabolic disorders has highlighted a complimentary, yet crucial role for microbiota in the onset and progression of obesity-related cancers. While strategies for cancer prevention and cure are known to work efficiently when supported by healthy diet and lifestyle choices and physical activity, emerging evidence suggests that the complex interplay relating microbiota both to neoplastic and metabolic diseases could aid strategies for cancer treatment and outcomes. This review will explore the experimental and clinical grounds supporting the functional role of gut microbiota in the pathophysiology and progression of cancers in relation to obesity and its metabolic correlates. Therapeutic approaches aiding microbiota restoration in connection with cancer treatments will be discussed.
Collapse
|
37
|
Vageli DP, Doukas SG, Doukas PG, Judson BL. Bile reflux and hypopharyngeal cancer (Review). Oncol Rep 2021; 46:244. [PMID: 34558652 PMCID: PMC8485019 DOI: 10.3892/or.2021.8195] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/24/2021] [Indexed: 12/26/2022] Open
Abstract
Laryngopharyngeal reflux, a variant of gastroesophageal reflux disease, has been considered a risk factor in the development of hypopharyngeal cancer. Bile acids are frequently present in the gastroesophageal refluxate and their effect has been associated with inflammatory and neoplastic changes in the upper aerodigestive tract. Recent in vitro and in vivo studies have provided direct evidence of the role of acidic bile refluxate in hypopharyngeal carcinogenesis and documented the crucial role of NF-κB as a key mediator of early oncogenic molecular events in this process and also suggested a contribution of STAT3. Acidic bile can cause premalignant changes and invasive squamous cell cancer in the affected hypopharynx accompanied by DNA damage, elevated p53 expression and oncogenic mRNA and microRNA alterations, previously linked to head and neck cancer. Weakly acidic bile can also increase the risk for hypopharyngeal carcinogenesis by inducing DNA damage, exerting anti-apoptotic effects and causing precancerous lesions. The most important findings that strongly support bile reflux as an independent risk factor for hypopharyngeal cancer are presented in the current review and the underlying mechanisms are provided.
Collapse
Affiliation(s)
- Dimitra P Vageli
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
| | - Sotirios G Doukas
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
| | - Panagiotis G Doukas
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
| | - Benjamin L Judson
- The Yale Larynx Laboratory, Department of Surgery, Yale School of Medicine, New Haven, CT 06510, USA
| |
Collapse
|
38
|
Petrescu AD, DeMorrow S. Farnesoid X Receptor as Target for Therapies to Treat Cholestasis-Induced Liver Injury. Cells 2021; 10:cells10081846. [PMID: 34440614 PMCID: PMC8392259 DOI: 10.3390/cells10081846] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/16/2021] [Accepted: 07/17/2021] [Indexed: 02/06/2023] Open
Abstract
Recent studies on liver disease burden worldwide estimated that cirrhosis is the 11th most common cause of death globally, and there is a great need for new therapies to limit the progression of liver injuries in the early stages. Cholestasis is caused by accumulation of hydrophobic bile acids (BA) in the liver due to dysfunctional BA efflux or bile flow into the gall bladder. Therefore, strategies to increase detoxification of hydrophobic BA and downregulate genes involved in BA production are largely investigated. Farnesoid X receptor (FXR) has a central role in BA homeostasis and recent publications revealed that changes in autophagy due to BA-induced reactive oxygen species and increased anti-oxidant response via nuclear factor E2-related factor 2 (NRF2), result in dysregulation of FXR signaling. Several mechanistic studies have identified new dysfunctions of the cholestatic liver at cellular and molecular level, opening new venues for developing more performant therapies.
Collapse
Affiliation(s)
- Anca D. Petrescu
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA;
- Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
| | - Sharon DeMorrow
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA;
- Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
- Central Texas Veterans Health Care System, Temple, TX 78712, USA
- Correspondence: ; Tel.: +1-512-495-5779
| |
Collapse
|
39
|
Endoplasmic reticulum stress in intestinal inflammation: implications of bile acids. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2021. [DOI: 10.1007/s43538-021-00031-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
40
|
Sun R, Xu C, Feng B, Gao X, Liu Z. Critical roles of bile acids in regulating intestinal mucosal immune responses. Therap Adv Gastroenterol 2021; 14:17562848211018098. [PMID: 34104213 PMCID: PMC8165529 DOI: 10.1177/17562848211018098] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 04/27/2021] [Indexed: 02/04/2023] Open
Abstract
Bile acids are a class of cholesterol derivatives that have been known for a long time for their critical roles in facilitating the digestion and absorption of lipid from the daily diet. The transformation of primary bile acids produced by the liver to secondary bile acids appears under the action of microbiota in the intestine, greatly expanding the molecular diversity of the intestinal environment. With the discovery of several new receptors of bile acids and signaling pathways, bile acids are considered as a family of important metabolites that play pleiotropic roles in regulating many aspects of human overall health, especially in the maintenance of the microbiota homeostasis and the balance of the mucosal immune system in the intestine. Accordingly, disruption of the process involved in the metabolism or circulation of bile acids is implicated in many disorders that mainly affect the intestine, such as inflammatory bowel disease and colon cancer. In this review, we discuss the different metabolism profiles in diseases associated with the intestinal mucosa and the diverse roles of bile acids in regulating the intestinal immune system. Furthermore, we also summarize recent advances in the field of new drugs that target bile acid signaling and highlight the importance of bile acids as a new target for disease intervention.
Collapse
Affiliation(s)
| | | | | | - Xiang Gao
- Department of Gastroenterology, The Shanghai Tenth People’s Hospital of Tongji University, Shanghai, China
| | | |
Collapse
|
41
|
Bile Acids Activated Receptors in Inflammatory Bowel Disease. Cells 2021; 10:cells10061281. [PMID: 34064187 PMCID: PMC8224328 DOI: 10.3390/cells10061281] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 12/18/2022] Open
Abstract
Once known exclusively for their role in nutrients absorption, bile acids have emerged as signaling molecules, generated from cholesterol breakdown, acting on several immune cells by activating a variety of receptors including the G protein-coupled bile acid receptor 1 (GPABR1 or TGR5), the Farnesoid-X-receptor (FXR) and, as recently discovered, the retinoid-related orphan receptors (ROR)γt. GPBAR1, FXR, and RORγt are highly expressed in cells of the innate and adaptive immune system (i.e., dendritic cells (DCs), macrophages, innate lymphoid 3 cells (ILC3s), and T helper 17 (Th17) lymphocytes) and plays an important role in regulating intestinal and liver immunity, highlighting a role for various bile acid species in regulating immune responses to intestinal microbial antigens. While primary bile acids are generated from the cholesterol breakdown secondary bile acids, the GPBAR1 ligands, and oxo-bile acids derivatives, the RORγt ligands, are generated by the intestinal microbiota, highlighting the potential of these bile acids in mediating the chemical communication between the intestinal microbiota and the host. Changes in intestinal microbiota, dysbiosis, alter the composition of the bile acid pool, promoting the activation of the immune system and development of chronic inflammation. In this review, we focus on the molecular mechanisms by which an altered bile acid signaling promotes intestinal inflammation.
Collapse
|
42
|
FXR in liver physiology: Multiple faces to regulate liver metabolism. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166133. [PMID: 33771667 DOI: 10.1016/j.bbadis.2021.166133] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/11/2021] [Accepted: 03/17/2021] [Indexed: 12/15/2022]
Abstract
The liver is the central metabolic hub which coordinates nutritional inputs and metabolic outputs. Food intake releases bile acids which can be sensed by the bile acid receptor FXR in the liver and the intestine. Hepatic and intestinal FXR coordinately regulate postprandial nutrient disposal in a network of interacting metabolic nuclear receptors. In this review we summarize and update the "classical roles" of FXR as a central integrator of the feeding state response, which orchestrates the metabolic processing of carbohydrates, lipids, proteins and bile acids. We also discuss more recent and less well studied FXR effects on amino acid, protein metabolism, autophagic turnover and inflammation. In addition, we summarize the recent understanding of how FXR signaling is affected by posttranslational modifications and by different FXR isoforms. These modifications and variations in FXR signaling might be considered when FXR is targeted pharmaceutically in clinical applications.
Collapse
|
43
|
Yin Y, Wang M, Gu W, Chen L. Intestine-specific FXR agonists as potential therapeutic agents for colorectal cancer. Biochem Pharmacol 2021; 186:114430. [PMID: 33556338 DOI: 10.1016/j.bcp.2021.114430] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/14/2021] [Accepted: 01/19/2021] [Indexed: 12/24/2022]
Abstract
Colorectal cancer (CRC) is one of the most malignant cancers in the world. A major cause of death in CRC patients is the limited therapeutic options in its advanced stages. The Farnesoid X receptor (FXR) is a member of the nuclear superfamily, which is effective in slowing the progression of colorectal cancer in addition to its extraordinary role in regulating metabolic disorders. Due to the systemic side-effects caused by non-selective agonists, the intestine-restricted FXR agonists can induce a whole-body benefit without activating the hepatic FXR, suggesting intestinal FXR activation as a potentially safer therapy in the treatment of CRC. This review highlights the effects of FXR on the disturbed bile acid circulation and the carcinogenesis of CRC and with a specific emphasis on listing the functions of several intestinal-restricted FXR agonists.
Collapse
Affiliation(s)
- Yiming Yin
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Zhangjiang Hi-Tech Park, Pudong New Area, Shanghai 201203, China
| | - Mengge Wang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Zhangjiang Hi-Tech Park, Pudong New Area, Shanghai 201203, China
| | - Wenjie Gu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Zhangjiang Hi-Tech Park, Pudong New Area, Shanghai 201203, China
| | - Lili Chen
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Zhangjiang Hi-Tech Park, Pudong New Area, Shanghai 201203, China.
| |
Collapse
|
44
|
Miyazaki T, Shirakami Y, Mizutani T, Maruta A, Ideta T, Kubota M, Sakai H, Ibuka T, Genovese S, Fiorito S, Taddeo VA, Epifano F, Tanaka T, Shimizu M. Novel FXR agonist nelumal A suppresses colitis and inflammation-related colorectal carcinogenesis. Sci Rep 2021; 11:492. [PMID: 33436792 PMCID: PMC7804240 DOI: 10.1038/s41598-020-79916-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 12/15/2020] [Indexed: 12/13/2022] Open
Abstract
FXR is a member of the nuclear receptor superfamily and bile acids are endogenous ligands of FXR. FXR activation has recently been reported to inhibit intestinal inflammation and tumour development. This study aimed to investigate whether the novel FXR agonist nelumal A, the active compound of the plant Ligularia nelumbifolia, can prevent colitis and colorectal carcinogenesis. In a mouse colitis model, dextran sodium sulfate-induced colonic mucosal ulcer and the inflammation grade in the colon significantly reduced in mice fed diets containing nelumal A. In an azoxymethane/dextran sodium sulfate-induced mouse inflammation-related colorectal carcinogenesis model, the mice showed decreased incidence of colonic mucosal ulcers and adenocarcinomas in nelumal A-treated group. Administration of nelumal A also induced tight junctions, antioxidant enzymes, and FXR target gene expression in the intestine, while it decreased the gene expression of bile acid synthesis in the liver. These findings suggest that nelumal A effectively attenuates colonic inflammation and suppresses colitis-related carcinogenesis, presumably through reduction of bile acid synthesis and oxidative damage. This agent may be potentially useful for treatment of inflammatory bowel diseases as well as their related colorectal cancer chemoprevention.
Collapse
Affiliation(s)
- Tsuneyuki Miyazaki
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Yohei Shirakami
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan.
| | - Taku Mizutani
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Akinori Maruta
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Takayasu Ideta
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Masaya Kubota
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Hiroyasu Sakai
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Takashi Ibuka
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Salvatore Genovese
- Department of Pharmacy, D'Annunzio University of Chieti-Pescara, 66100, Chieti Scalo, Italy
| | - Serena Fiorito
- Department of Pharmacy, D'Annunzio University of Chieti-Pescara, 66100, Chieti Scalo, Italy
| | - Vito Alessandro Taddeo
- Department of Pharmacy, D'Annunzio University of Chieti-Pescara, 66100, Chieti Scalo, Italy
| | - Francesco Epifano
- Department of Pharmacy, D'Annunzio University of Chieti-Pescara, 66100, Chieti Scalo, Italy
| | - Takuji Tanaka
- Department of Pathological Diagnosis, Gifu Municipal Hospital, Gifu, 500-8513, Japan
| | - Masahito Shimizu
- Department of Gastroenterology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| |
Collapse
|
45
|
Hild B, Heinzow HS, Schmidt HH, Maschmeier M. Bile Acids in Control of the Gut-Liver-Axis. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2021; 59:63-68. [PMID: 33429452 DOI: 10.1055/a-1330-9644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The liver and gut share an intimate relationship whose communication relies heavily on metabolites, among which bile acids play a major role. Beyond their function as emulsifiers, bile acids have been recognized for their influence on metabolism of glucose and lipids as well as for their impact on immune responses. Therefore, changes to the composition of the bile acid pool can be consequential to liver and to gut physiology. By metabolizing primary bile acids to secondary bile acids, the bacterial gut microbiome modifies how bile acids exert influence. An altered ratio of secondary to primary bile acids is found to be substantial in many studies. Thus, disease pathogenesis and progression could be changed by gut microbiome modification which influences the bile acid pool.
Collapse
Affiliation(s)
- Benedikt Hild
- Medizinische Klinik B (Gastroenterologie, Hepatologie, Endokrinologie, Klinische Infektiologie), Universitätsklinikum Münster, Munster, Germany
| | - Hauke S Heinzow
- Medizinische Klinik B (Gastroenterologie, Hepatologie, Endokrinologie, Klinische Infektiologie), Universitätsklinikum Münster, Munster, Germany
| | - Hartmut H Schmidt
- Medizinische Klinik B (Gastroenterologie, Hepatologie, Endokrinologie, Klinische Infektiologie), Universitätsklinikum Münster, Munster, Germany
| | - Miriam Maschmeier
- Medizinische Klinik B (Gastroenterologie, Hepatologie, Endokrinologie, Klinische Infektiologie), Universitätsklinikum Münster, Munster, Germany
| |
Collapse
|
46
|
Abstract
Bile acids are a group of chemically different steroids generated at the host/microbial interface. Indeed, while primary bile acids are the end-product of cholesterol breakdown in the host liver, secondary bile acids are the products of microbial metabolism. Primary and secondary bile acids along with their oxo derivatives have been identified as signaling molecules acting on a family of cell membrane and nuclear receptors collectively known as "bile acid-activated receptors." Members of this group of receptors are highly expressed throughout the gastrointestinal tract and mediate the bilateral communications of the intestinal microbiota with the host immune system. The expression and function of bile acid-activated receptors FXR, GPBAR1, PXR, VDR, and RORγt are highly dependent on the structure of the intestinal microbiota and negatively regulated by intestinal inflammation. Studies from gene ablated mice have demonstrated that FXR and GPBAR1 are essential to maintain a tolerogenic phenotype in the intestine, and their ablation promotes the polarization of intestinal T cells and macrophages toward a pro-inflammatory phenotype. RORγt inhibition by oxo-bile acids is essential to constrain Th17 polarization of intestinal lymphocytes. Gene-wide association studies and functional characterizations suggest a potential role for impaired bile acid signaling in development inflammatory bowel diseases (IBD). In this review, we will focus on how bile acids and their receptors mediate communications of intestinal microbiota with the intestinal immune system, describing dynamic changes of bile acid metabolism in IBD and the potential therapeutic application of targeting bile acid signaling in these disorders.
Collapse
|
47
|
Ní Dhonnabháín R, Xiao Q, O’Malley D. Aberrant Gut-To-Brain Signaling in Irritable Bowel Syndrome - The Role of Bile Acids. Front Endocrinol (Lausanne) 2021; 12:745190. [PMID: 34917022 PMCID: PMC8669818 DOI: 10.3389/fendo.2021.745190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/04/2021] [Indexed: 12/12/2022] Open
Abstract
Functional bowel disorders such as irritable bowel syndrome (IBS) are common, multifactorial and have a major impact on the quality of life of individuals diagnosed with the condition. Heterogeneity in symptom manifestation, which includes changes in bowel habit and visceral pain sensitivity, are an indication of the complexity of the underlying pathophysiology. It is accepted that dysfunctional gut-brain communication, which incorporates efferent and afferent branches of the peripheral nervous system, circulating endocrine hormones and local paracrine and neurocrine factors, such as host and microbially-derived signaling molecules, underpins symptom manifestation. This review will focus on the potential role of hepatic bile acids in modulating gut-to-brain signaling in IBS patients. Bile acids are amphipathic molecules synthesized in the liver, which facilitate digestion and absorption of dietary lipids. They are also important bioactive signaling molecules however, binding to bile acid receptors which are expressed on many different cell types. Bile acids have potent anti-microbial actions and thereby shape intestinal bacterial profiles. In turn, bacteria with bile salt hydrolase activity initiate the critical first step in transforming primary bile acids into secondary bile acids. Individuals with IBS are reported to have altered microbial profiles and modified bile acid pools. We have assessed the evidence to support a role for bile acids in the pathophysiology underlying the manifestation of IBS symptoms.
Collapse
Affiliation(s)
- Róisín Ní Dhonnabháín
- Department of Physiology, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Qiao Xiao
- Department of Physiology, College of Medicine and Health, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Dervla O’Malley
- Department of Physiology, College of Medicine and Health, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- *Correspondence: Dervla O’Malley,
| |
Collapse
|
48
|
Man AW, Zhou Y, Xia N, Li H. Involvement of Gut Microbiota, Microbial Metabolites and Interaction with Polyphenol in Host Immunometabolism. Nutrients 2020; 12:E3054. [PMID: 33036205 PMCID: PMC7601750 DOI: 10.3390/nu12103054] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/30/2020] [Accepted: 10/01/2020] [Indexed: 12/11/2022] Open
Abstract
Immunological and metabolic processes are inextricably linked and important for maintaining tissue and organismal health. Manipulation of cellular metabolism could be beneficial to immunity and prevent metabolic and degenerative diseases including obesity, diabetes, and cancer. Maintenance of a normal metabolism depends on symbiotic consortium of gut microbes. Gut microbiota contributes to certain xenobiotic metabolisms and bioactive metabolites production. Gut microbiota-derived metabolites have been shown to be involved in inflammatory activation of macrophages and contribute to metabolic diseases. Recent studies have focused on how nutrients affect immunometabolism. Polyphenols, the secondary metabolites of plants, are presented in many foods and beverages. Several studies have demonstrated the antioxidant and anti-inflammatory properties of polyphenols. Many clinical trials and epidemiological studies have also shown that long-term consumption of polyphenol-rich diet protects against chronic metabolic diseases. It is known that polyphenols can modulate the composition of core gut microbiota and interact with the immunometabolism. In the present article, we review the mechanisms of gut microbiota and its metabolites on immunometabolism, summarize recent findings on how the interaction between microbiota and polyphenol modulates host immunometabolism, and discuss future research directions.
Collapse
Affiliation(s)
| | | | | | - Huige Li
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Langenbeckstr. 1, 55131 Mainz, Germany; (A.W.C.M.); (Y.Z.); (N.X.)
| |
Collapse
|
49
|
Gut microbial metabolites as multi-kingdom intermediates. Nat Rev Microbiol 2020; 19:77-94. [PMID: 32968241 DOI: 10.1038/s41579-020-0438-4] [Citation(s) in RCA: 523] [Impact Index Per Article: 130.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
The gut microbiota contributes to host physiology through the production of a myriad of metabolites. These metabolites exert their effects within the host as signalling molecules and substrates for metabolic reactions. Although the study of host-microbiota interactions remains challenging due to the high degree of crosstalk both within and between kingdoms, metabolite-focused research has identified multiple actionable microbial targets that are relevant for host health. Metabolites, as the functional output of combined host and microorganism interactions, provide a snapshot in time of an extraordinarily complex multi-organism system. Although substantial work remains towards understanding host-microbiota interactions and the underlying mechanisms, we review the current state of knowledge for each of the major classes of microbial metabolites with emphasis on clinical and translational research implications. We provide an overview of methodologies available for measurement of microbial metabolites, and in addition to discussion of key challenges, we provide a potential framework for integration of discovery-based metabolite studies with mechanistic work. Finally, we highlight examples in the literature where this approach has led to substantial progress in understanding host-microbiota interactions.
Collapse
|
50
|
Zou X, Zhang D, Song Y, Liu S, Long Q, Yao L, Li W, Duan Z, Wu D, Liu L. HRG switches TNFR1-mediated cell survival to apoptosis in Hepatocellular Carcinoma. Theranostics 2020; 10:10434-10447. [PMID: 32929358 PMCID: PMC7482824 DOI: 10.7150/thno.47286] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023] Open
Abstract
Background: Tumor necrosis factor receptor 1 (TNFR1) signaling plays a pleiotropic role in the development of hepatocellular carcinoma (HCC). The formation of TNFR1-complex I supports cell survival while TNFR1-complex II leads to apoptosis, and the underlying mechanisms of the transformation of these TNFR1 complexes in HCC remain poorly defined. Methods: The interaction protein of TNFR1 was identified by GST pulldown assay, immunoprecipitation and mass spectrometry. In vitro and in vivo assay were performed to explore the biological features and mechanisms underlying the regulation of TNFR1 signals by histidine-rich glycoprotein (HRG). Data from the public databases and HCC samples were utilized to analyze the expression and clinical relevance of HRG. Results: HRG directly interacted with TNFR1 and stabilized TNFR1 protein by decreasing the Lys(K)-48 ubiquitination mediated-degradation. The formation of TNFR1-complex II was prompted by HRG overexpression via upregulating Lys(K)-63 ubiquitination of TNFR1. Besides, overexpression of HRG suppressed expression of pro-survival genes by impairing the activation of NF-κB signaling in the presence of TNFR1. Moreover, downregulation of HRG was a result of feedback inhibition of NF-κB activation in HCC. In line with the pro-apoptotic switch of TNFR1 signaling after HRG induction, overexpression of HRG inhibited cell proliferation and increased apoptosis in HCC. Conclusions: Our findings illustrate a crucial role for HRG in suppressing HCC via inclining TNFR1 to a pro-apoptotic cellular phenotype. Restoring HRG expression in HCC tissues might be a promising pharmacological approach to blocking tumor progression by shifting cellular fate from cell survival to apoptosis.
Collapse
Affiliation(s)
- Xuejing Zou
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Dongyan Zhang
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yang Song
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shanshan Liu
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qian Long
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Liheng Yao
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Wenwen Li
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhijiao Duan
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Dehua Wu
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Li Liu
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Department of Medical Quality Management, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|