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A Novel UC Exclusion Diet and Antibiotics for Treatment of Mild to Moderate Pediatric Ulcerative Colitis: A Prospective Open-Label Pilot Study. Nutrients 2021; 13:nu13113736. [PMID: 34835992 PMCID: PMC8622458 DOI: 10.3390/nu13113736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/18/2021] [Accepted: 10/21/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND As the microbiome plays an important role in instigating inflammation in ulcerative colitis (UC), strategies targeting the microbiome may offer an alternative therapeutic approach. The goal of the pilot trial was to evaluate the potential efficacy and feasibility of a novel UC exclusion diet (UCED) for clinical remission, as well as the potential of sequential antibiotics for diet-refractory patients to achieve remission without steroids. METHODS This was a prospective, single-arm, multicenter, open-label pilot study in patients aged 8-19, with pediatric UC activity index (PUCAI) scores >10 on stable maintenance therapy. Patients failing to enter remission (PUCAI < 10) on the diet could receive a 14-day course of amoxycillin, metronidazole and doxycycline (AMD), and were re-assessed on day 21. The primary endpoint was intention-to-treat (ITT) remission at week 6, with UCED as the only intervention. RESULTS Twenty-four UCED treatment courses were given to 23 eligible children (mean age: 15.3 ± 2.9 years). The median PUCAI decreased from 35 (30-40) at baseline to 12.5 (5-30) at week 6 (p = 0.001). Clinical remission with UCED alone was achieved in 9/24 (37.5%). The median fecal calprotectin declined from 818 (630.0-1880.0) μg/g at baseline to 592.0 (140.7-1555.0) μg/g at week 6 (p > 0.05). Eight patients received treatment with antibiotics after failing on the diet; 4/8 (50.0%) subsequently entered remission 3 weeks later. CONCLUSION The UCED appears to be effective and feasible for the induction of remission in children with mild to moderate UC. The sequential use of UCED followed by antibiotic therapy needs to be evaluated as a microbiome-targeted, steroid-sparing strategy.
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Interactions between gut microbiota and berberine, a necessary procedure to understand the mechanisms of berberine. J Pharm Anal 2021; 12:541-555. [PMID: 36105164 PMCID: PMC9463479 DOI: 10.1016/j.jpha.2021.10.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 09/23/2021] [Accepted: 10/19/2021] [Indexed: 02/06/2023] Open
Abstract
Berberine (BBR), an isoquinoline alkaloid, has been found in many plants, such as Coptis chinensis Franch and Phellodendron chinense Schneid. Although BBR has a wide spectrum of pharmacological effects, its oral bioavailability is extremely low. In recent years, gut microbiota has emerged as a cynosure to understand the mechanisms of action of herbal compounds. Numerous studies have demonstrated that due to its low bioavailability, BBR can interact with the gut microbiota, thereby exhibiting altered pharmacological effects. However, no systematic and comprehensive review has summarized these interactions and their corresponding influences on pharmacological effects. Here, we describe the direct interactive relationships between BBR and gut microbiota, including regulation of gut microbiota composition and metabolism by BBR and metabolization of BBR by gut microbiota. In addition, the complex interactions between gut microbiota and BBR as well as the side effects and personalized use of BBR are discussed. Furthermore, we provide our viewpoint on future research directions regarding BBR and gut microbiota. This review not only helps to explain the mechanisms underlying BBR activity but also provides support for the rational use of BBR in clinical practice. Low bioavailability enables interactions between berberine and the gut microbiota. Berberine can shape the composition and metabolism of the gut microbiota. Gut microbiota can metabolize and transform berberine. Personalized use of berberine can reduce the occurrence of side effects.
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Bermudez Sanchez S, Pilla R, Sarawichitr B, Gramenzi A, Marsilio F, Steiner JM, Lidbury JA, Woods GRT, Suchodolski JS, German AJ. Untargeted fecal metabolome analysis in obese dogs after weight loss achieved by feeding a high-fiber-high-protein diet. Metabolomics 2021; 17:66. [PMID: 34228201 PMCID: PMC8260550 DOI: 10.1007/s11306-021-01815-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 06/15/2021] [Indexed: 01/01/2023]
Abstract
INTRODUCTION In humans and companion animals, obesity is accompanied by metabolic derangements. Studies have revealed differences in the composition of the fecal microbiome between obese dogs and those with an ideal body weight. OBJECTIVES We have previously reported that the fecal microbiome in obese dogs changes after controlled weight reduction, induced by feeding a diet high in fiber and protein. Despite these findings, it is unclear if taxonomic differences infer differences at the functional level between obese dogs and those with an ideal body weight. METHODOLOGY Untargeted fecal metabolome analysis was performed on dogs with obesity before and after weight loss achieved by feeding a high-fiber-high-protein diet. RESULTS Fecal metabolome analysis revealed a total of 13 compounds that changed in concentration in obese dogs after weight loss. Of these compounds, metabolites associated with bacterial metabolism decreased after weight loss including purine, L-(-)-methionine, coumestrol, and the alkaloids 1-methylxanthine and trigonelline. Conversely, the polyphenols (-)-epicatechin and matairesinol and the quinoline derivatives 1,5-isoquinolinediol and 2-hydroxiquinoline increased after weight loss. CONCLUSION These results suggest differences in intestinal microbiome at the functional level after weight loss, but further studies are needed to determine the role of these compounds in the etiology of obesity and weight loss.
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Affiliation(s)
- Sandra Bermudez Sanchez
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA.
- Veterinary Medicine Sciences, University of Teramo, Teramo, Italy.
| | - Rachel Pilla
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Benjamin Sarawichitr
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | | | - Fulvio Marsilio
- Veterinary Medicine Sciences, University of Teramo, Teramo, Italy
| | - Joerg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Jonathan A Lidbury
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Georgiana R T Woods
- Institute of Life Course and Medical Sciences, University of Liverpool, Leahurst, Neston, UK
| | - Jan S Suchodolski
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Alexander J German
- Institute of Life Course and Medical Sciences, University of Liverpool, Leahurst, Neston, UK
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Fernandez-Cantos MV, Garcia-Morena D, Iannone V, El-Nezami H, Kolehmainen M, Kuipers OP. Role of microbiota and related metabolites in gastrointestinal tract barrier function in NAFLD. Tissue Barriers 2021; 9:1879719. [PMID: 34280073 PMCID: PMC8489918 DOI: 10.1080/21688370.2021.1879719] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 11/06/2022] Open
Abstract
The Gastrointestinal (GI) tract is composed of four main barriers: microbiological, chemical, physical and immunological. These barriers play important roles in maintaining GI tract homeostasis. In the crosstalk between these barriers, microbiota and related metabolites have been shown to influence GI tract barrier integrity, and alterations of the gut microbiome might lead to an increase in intestinal permeability. As a consequence, translocation of bacteria and their products into the circulatory system increases, reaching proximal and distal tissues, such as the liver. One of the most prevalent chronic liver diseases, Nonalcoholic Fatty Liver Disease (NAFLD), has been associated with an altered gut microbiota and barrier integrity. However, the causal link between them has not been fully elucidated yet. In this review, we aim to highlight relevant bacterial taxa and their related metabolites affecting the GI tract barriers in the context of NAFLD, discussing their implications in gut homeostasis and in disease.
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Affiliation(s)
- Maria Victoria Fernandez-Cantos
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, The Netherlands
| | - Diego Garcia-Morena
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, The Netherlands
| | - Valeria Iannone
- Institute of Public Health and Clinical Nutrition, Department of Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Hani El-Nezami
- Molecular and Cell Biology Division, School of Biological Sciences, University of Hong Kong, Hong Kong SAR
| | - Marjukka Kolehmainen
- Institute of Public Health and Clinical Nutrition, Department of Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Oscar P. Kuipers
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, The Netherlands
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Yang ZH, Liu F, Zhu XR, Suo FY, Jia ZJ, Yao SK. Altered profiles of fecal bile acids correlate with gut microbiota and inflammatory responses in patients with ulcerative colitis. World J Gastroenterol 2021; 27:3609-3629. [PMID: 34239273 PMCID: PMC8240054 DOI: 10.3748/wjg.v27.i24.3609] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/22/2021] [Accepted: 05/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gut microbiota and its metabolites may be involved in the pathogenesis of inflammatory bowel disease. Several clinical studies have recently shown that patients with ulcerative colitis (UC) have altered profiles of fecal bile acids (BAs). It was observed that BA receptors Takeda G-protein-coupled receptor 5 (TGR5) and vitamin D receptor (VDR) participate in intestinal inflammatory responses by regulating NF-ĸB signaling. We hypothesized that altered profiles of fecal BAs might be correlated with gut microbiota and inflammatory responses in patients with UC. AIM To investigate the changes in fecal BAs and analyze the relationship of BAs with gut microbiota and inflammation in patients with UC. METHODS The present study used 16S rDNA sequencing technology to detect the differences in the intestinal flora between UC patients and healthy controls (HCs). Fecal BAs were measured by targeted metabolomics approaches. Mucosal TGR5 and VDR expression was analyzed using immunohistochemistry, and serum inflammatory cytokine levels were detected by ELISA. RESULTS Thirty-two UC patients and twenty-three HCs were enrolled in this study. It was found that the diversity of gut microbiota in UC patients was reduced compared with that in HCs. Firmicutes, Clostridium IV, Butyricicoccus, Clostridium XlVa, Faecalibacterium, and Roseburia were significantly decreased in patients with UC (P = 3.75E-05, P = 8.28E-07, P = 0.0002, P = 0.003, P = 0.0003, and P = 0.0004, respectively). Proteobacteria, Escherichia, Enterococcus, Klebsiella, and Streptococcus were significantly enriched in the UC group (P = 2.99E-09, P = 3.63E-05, P = 8.59E-05, P = 0.003, and P = 0.016, respectively). The concentrations of fecal secondary BAs, such as lithocholic acid, deoxycholic acid, glycodeoxycholic acid, glycolithocholic acid, and taurolithocholate, in UC patients were significantly lower than those in HCs (P = 8.1E-08, P = 1.2E-07, P = 3.5E-04, P = 1.9E-03, and P = 1.8E-02, respectively) and were positively correlated with Butyricicoccus, Roseburia, Clostridium IV, Faecalibacterium, and Clostridium XlVb (P < 0.01). The concentrations of primary BAs, such as taurocholic acid, cholic acid, taurochenodeoxycholate, and glycochenodeoxycholate, in UC patients were significantly higher than those in HCs (P = 5.3E-03, P = 4E-02, P = 0.042, and P = 0.045, respectively) and were positively related to Enterococcus, Klebsiella, Streptococcus, Lactobacillus, and pro-inflammatory cytokines (P < 0.01). The expression of TGR5 was significantly elevated in UC patients (0.019 ± 0.013 vs 0.006 ± 0.003, P = 0.0003). VDR expression in colonic mucosal specimens was significantly decreased in UC patients (0.011 ± 0.007 vs 0.016 ± 0.004, P = 0.033). CONCLUSION Fecal BA profiles are closely related to the gut microbiota and serum inflammatory cytokines. Dysregulation of the gut microbiota and altered constitution of fecal BAs may participate in regulating inflammatory responses via the BA receptors TGR5 and VDR.
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Affiliation(s)
- Zhen-Huan Yang
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Fang Liu
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xiao-Ran Zhu
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Fei-Ya Suo
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Zi-jun Jia
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Shu-Kun Yao
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing 100029, China
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Agus A, Clément K, Sokol H. Gut microbiota-derived metabolites as central regulators in metabolic disorders. Gut 2021; 70:1174-1182. [PMID: 33272977 PMCID: PMC8108286 DOI: 10.1136/gutjnl-2020-323071] [Citation(s) in RCA: 523] [Impact Index Per Article: 174.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023]
Abstract
Metabolic disorders represent a growing worldwide health challenge due to their dramatically increasing prevalence. The gut microbiota is a crucial actor that can interact with the host by the production of a diverse reservoir of metabolites, from exogenous dietary substrates or endogenous host compounds. Metabolic disorders are associated with alterations in the composition and function of the gut microbiota. Specific classes of microbiota-derived metabolites, notably bile acids, short-chain fatty acids, branched-chain amino acids, trimethylamine N-oxide, tryptophan and indole derivatives, have been implicated in the pathogenesis of metabolic disorders. This review aims to define the key classes of microbiota-derived metabolites that are altered in metabolic diseases and their role in pathogenesis. They represent potential biomarkers for early diagnosis and prognosis as well as promising targets for the development of novel therapeutic tools for metabolic disorders.
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Affiliation(s)
- Allison Agus
- University Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, Île-de-France, France,Paris Center for Microbiome Medicine (PaCeMM) FHU, AP-HP, Paris, Île-de-France, France
| | - Karine Clément
- Paris Center for Microbiome Medicine (PaCeMM) FHU, AP-HP, Paris, Île-de-France, France,Nutrition and Obesity: systemic approach (NutriOmics) research unit, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Sorbonne Universités, INSERM, Paris, Île-de-France, France
| | - Harry Sokol
- Paris Center for Microbiome Medicine (PaCeMM) FHU, AP-HP, Paris, Île-de-France, France .,Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, Sorbonne Universite, INSERM, Paris, Île-de-France, France
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Gautier T, David-Le Gall S, Sweidan A, Tamanai-Shacoori Z, Jolivet-Gougeon A, Loréal O, Bousarghin L. Next-Generation Probiotics and Their Metabolites in COVID-19. Microorganisms 2021; 9:microorganisms9050941. [PMID: 33925715 PMCID: PMC8146258 DOI: 10.3390/microorganisms9050941] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023] Open
Abstract
Since December 2019, a global pandemic has been observed, caused by the emergence of a new coronavirus, SARS CoV-2. The latter is responsible for the respiratory disease, COVID-19. The infection is also characterized by renal, hepatic, and gastrointestinal dysfunctions suggesting the spread of the virus to other organs. A dysregulated immune response was also reported. To date, there is no measure to treat or prevent SARS CoV-2 infection. Additionally, as gut microbiota composition is altered in patients with COVID-19, alternative therapies using probiotics can be considered to fight SARS CoV-2 infection. This review aims at summarizing the current knowledge about next-generation probiotics (NGPs) and their benefits in viral respiratory tract infections and in COVID-19. We describe these bacteria, highlighted by studies using metagenomic approaches. In addition, these bacteria generate metabolites such as butyrate, desaminotyrosine, and secondary bile acid, suggested to prevent viral respiratory infections. Gut microbial metabolites transported via the circulation to the lungs could inhibit viral replication or improve the immune response against viruses. The use of probiotics and/or their metabolites may target either the virus itself and/or the immunologic process. However, this review showed that more studies are needed to determine the benefits of probiotics and metabolite products in COVID-19.
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Affiliation(s)
- Thomas Gautier
- UMR 1241, Nutrition Metabolisms and Cancer Institute, Inserm, INRAE, Université de Rennes 1, 35000 Rennes, France; (T.G.); (S.D.-L.G.); (Z.T.-S.); (A.J.-G.); (O.L.)
| | - Sandrine David-Le Gall
- UMR 1241, Nutrition Metabolisms and Cancer Institute, Inserm, INRAE, Université de Rennes 1, 35000 Rennes, France; (T.G.); (S.D.-L.G.); (Z.T.-S.); (A.J.-G.); (O.L.)
| | - Alaa Sweidan
- Laboratory of Microbiology, Department of Life and Earth Sciences, Faculty of Sciences I, Lebanese University, Hadath Campus, P.O. Box 6573/14 Beirut, Lebanon;
| | - Zohreh Tamanai-Shacoori
- UMR 1241, Nutrition Metabolisms and Cancer Institute, Inserm, INRAE, Université de Rennes 1, 35000 Rennes, France; (T.G.); (S.D.-L.G.); (Z.T.-S.); (A.J.-G.); (O.L.)
| | - Anne Jolivet-Gougeon
- UMR 1241, Nutrition Metabolisms and Cancer Institute, Inserm, INRAE, Université de Rennes 1, 35000 Rennes, France; (T.G.); (S.D.-L.G.); (Z.T.-S.); (A.J.-G.); (O.L.)
| | - Olivier Loréal
- UMR 1241, Nutrition Metabolisms and Cancer Institute, Inserm, INRAE, Université de Rennes 1, 35000 Rennes, France; (T.G.); (S.D.-L.G.); (Z.T.-S.); (A.J.-G.); (O.L.)
| | - Latifa Bousarghin
- UMR 1241, Nutrition Metabolisms and Cancer Institute, Inserm, INRAE, Université de Rennes 1, 35000 Rennes, France; (T.G.); (S.D.-L.G.); (Z.T.-S.); (A.J.-G.); (O.L.)
- Correspondence: ; Tel.: +33-2232-3489-8
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Sipos A, Ujlaki G, Mikó E, Maka E, Szabó J, Uray K, Krasznai Z, Bai P. The role of the microbiome in ovarian cancer: mechanistic insights into oncobiosis and to bacterial metabolite signaling. Mol Med 2021; 27:33. [PMID: 33794773 PMCID: PMC8017782 DOI: 10.1186/s10020-021-00295-2] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/22/2021] [Indexed: 02/07/2023] Open
Abstract
Ovarian cancer is characterized by dysbiosis, referred to as oncobiosis in neoplastic diseases. In ovarian cancer, oncobiosis was identified in numerous compartments, including the tumor tissue itself, the upper and lower female genital tract, serum, peritoneum, and the intestines. Colonization was linked to Gram-negative bacteria with high inflammatory potential. Local inflammation probably participates in the initiation and continuation of carcinogenesis. Furthermore, local bacterial colonies in the peritoneum may facilitate metastasis formation in ovarian cancer. Vaginal infections (e.g. Neisseria gonorrhoeae or Chlamydia trachomatis) increase the risk of developing ovarian cancer. Bacterial metabolites, produced by the healthy eubiome or the oncobiome, may exert autocrine, paracrine, and hormone-like effects, as was evidenced in breast cancer or pancreas adenocarcinoma. We discuss the possible involvement of lipopolysaccharides, lysophosphatides and tryptophan metabolites, as well as, short-chain fatty acids, secondary bile acids and polyamines in the carcinogenesis of ovarian cancer. We discuss the applicability of nutrients, antibiotics, and probiotics to harness the microbiome and support ovarian cancer therapy. The oncobiome and the most likely bacterial metabolites play vital roles in mediating the effectiveness of chemotherapy. Finally, we discuss the potential of oncobiotic changes as biomarkers for the diagnosis of ovarian cancer and microbial metabolites as possible adjuvant agents in therapy.
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Affiliation(s)
- Adrienn Sipos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Gyula Ujlaki
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Edit Mikó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Eszter Maka
- Department of Gynecology and Obstetrics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, Debrecen, 4032, Hungary
| | - Judit Szabó
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Karen Uray
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Zoárd Krasznai
- Department of Gynecology and Obstetrics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, Debrecen, 4032, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary.
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary.
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Yu Y, Yang W, Bilotta AJ, Zhao X, Cong Y, Li Y. L-lactate promotes intestinal epithelial cell migration to inhibit colitis. FASEB J 2021; 35:e21554. [PMID: 33742715 DOI: 10.1096/fj.202100095r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/24/2021] [Accepted: 03/08/2021] [Indexed: 12/16/2022]
Abstract
Lactate, one of the most common primary metabolites of bacteria and human cells, has been shown to play essential roles in the regulation of inflammatory diseases, including inflammatory bowel diseases. However, whether and how host-derived lactate affects intestinal epithelial homeostasis is still not completely understood. Here, we investigated how L-lactate, mainly produced by host cells, regulates intestinal epithelial cell (IEC) migration to promote intestinal wound healing. Using video microscopy and tracking individual cells, we found that L-lactate enhanced IEC migration in direction persistence and speed. Mechanistically, L-lactate promoted IEC mitochondrial ATP production. The mitochondrial ATP synthase inhibitor, oligomycin, significantly decreased IEC persistence and speed, which inhibited cell migration induced by L-lactate. Furthermore, administering mice with L-lactate suppressed colitis induced by dextran sulfate sodium. In conclusion, our study demonstrates that host-derived L-lactate promotes IEC mitochondrial ATP production to drive cell migration, promoting intestinal wound healing to alleviate intestinal inflammation.
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Affiliation(s)
- Yu Yu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Wenjing Yang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Anthony J Bilotta
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Xiaojing Zhao
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Yingzi Cong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
- Department of Pathology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Yanqing Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Chen M, Zheng J, Zou X, Ye C, Xia H, Yang M, Gao Q, Yang Q, Liu H. Ligustrum robustum (Roxb.) blume extract modulates gut microbiota and prevents metabolic syndrome in high-fat diet-fed mice. JOURNAL OF ETHNOPHARMACOLOGY 2021; 268:113695. [PMID: 33316365 DOI: 10.1016/j.jep.2020.113695] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In Chinese folk medicine, Ligustrum robustum (Roxb.) Blume has been widely used as a healthy tea beverage for improvement in obesity and lipidemic metabolic disorders. AIM OF THE STUDY We aimed to investigate the effect of L. robustum extract (LRE) on metabolic syndrome in high-fat diet (HFD)-fed mice and to explore the underlying role of gut microbiota during the treatment. MATERIALS AND METHODS The ground dried leaves of L. robustum (Roxb.) Blume were extracted with ethanol and then purified by a resin column. The composition of L. robustum extract (LRE) was analyzed by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). C57BL/6 J mice fed with HFD were treated with LRE for 16 weeks. RT-qPCR and morphological staining were utilized to reveal the impact of LRE on hepatic glucolipid metabolism and gut integrity. The next-generation sequencing of 16 S rDNA was applied for analyzing the gut microbial community of fecal samples. RESULTS LRE, mainly composed of ligupurpuroside A and aceteoside, alleviated insulin resistance, improved hepatic metabolism, enhanced intestinal integrity, and suppressed inflammatory responses in HFD-fed mice. Moreover, LRE treatment reshaped the gut microbiota structure by increasing the levels of genera Streptococcus, Lactobacillus, and Mucispirillum and decreasing the populations of Alistipes and Lachnospiraceae NK4A136 group in HFD-fed mice. The alteration of gut microbiota was associated with several metabolic pathways of gut bacteria. Spearman's correlation analysis further confirmed the links between the changed intestinal bacteria and multiple disease indices. CONCLUSIONS LRE prevented gut microbiota dysbiosis and metabolic disorder in HFD-fed mice, which helps to promote the application in LRE-mediated prevention from metabolic syndrome as a gut microbial regulator.
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Affiliation(s)
- Man Chen
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, PR China
| | - Junping Zheng
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, PR China
| | - Xiaojuan Zou
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, PR China
| | - Cheng Ye
- Wuhan Customs Technology Center, Qintai Avenue 588, Wuhan, 430050, PR China
| | - Hui Xia
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, PR China
| | - Ming Yang
- State Engineering Technology Institute for Karst Desertification Control, School of Karst Science, Guizhou Normal University, Guiyang, 550001, PR China
| | - Qinghua Gao
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, PR China
| | - Qingxiong Yang
- State Engineering Technology Institute for Karst Desertification Control, School of Karst Science, Guizhou Normal University, Guiyang, 550001, PR China.
| | - Hongtao Liu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, 430065, PR China; Chongqing Academy of Chinese Materia Medica, Nanshan Road 34, Chongqing, 400065, PR China.
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Banerjee A, Pradhan LK, Sahoo PK, Jena KK, Chauhan NR, Chauhan S, Das SK. Unravelling the potential of gut microbiota in sustaining brain health and their current prospective towards development of neurotherapeutics. Arch Microbiol 2021; 203:2895-2910. [PMID: 33763767 DOI: 10.1007/s00203-021-02276-9] [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: 10/30/2020] [Revised: 02/18/2021] [Accepted: 03/10/2021] [Indexed: 12/12/2022]
Abstract
Increasing incidences of neurological disorders, such as Parkinson's disease (PD), multiple sclerosis (MS), Alzheimer's disease (AD) and amyotrophic lateral sclerosis (ALS) are being reported, but an insight into their pathology remains elusive. Findings have suggested that gut microbiota play a major role in regulating brain functions through the gut-brain axis. A unique bidirectional communication between gut microbiota and maintenance of brain health could play a pivotal role in regulating incidences of neurodegenerative diseases. Contrarily, the present life style with changing food habits and disturbed circadian rhythm may contribute to gut homeostatic imbalance and dysbiosis leading to progression of several neurological disorders. Therefore, dysbiosis, as a primary factor behind intestinal disorders, may also augment inflammation, intestinal and blood-brain barrier permeability through microbiota-gut-brain axis. This review primarily focuses on the gut-brain axis functions, specific gut microbial population, metabolites produced by gut microbiota, their role in regulating various metabolic processes and role of gut microbiota towards development of neurodegenerative diseases. However, several studies have reported a decrease in abundance of a specific gut microbial population and a corresponding increase in other microbial family, with few findings revealing some contradictions. Reports also showed that colonization of gut microbiota isolated from patients suffering from neurodegenerative disease leads to the development of enhance pathological outcomes in animal models. Hence, a systematic understanding of the dominant role of specific gut microbiome towards development of different neurodegenerative diseases could possibly provide novel insight into the use of probiotics and microbial transplantation as a substitute approach for treating/preventing such health maladies.
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Affiliation(s)
- Ankita Banerjee
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, 751003, Odisha, India
| | - Lilesh Kumar Pradhan
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, 751003, Odisha, India
| | - Pradyumna Kumar Sahoo
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, 751003, Odisha, India
| | - Kautilya Kumar Jena
- Autophagy Laboratory, Infectious Disease Biology Division, Institute of Life Sciences, Bhubaneswar, 751023, Odisha, India
| | - Nishant Ranjan Chauhan
- Autophagy Laboratory, Infectious Disease Biology Division, Institute of Life Sciences, Bhubaneswar, 751023, Odisha, India
| | - Santosh Chauhan
- Autophagy Laboratory, Infectious Disease Biology Division, Institute of Life Sciences, Bhubaneswar, 751023, Odisha, India
| | - Saroj Kumar Das
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, 751003, Odisha, India.
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62
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Chen Y, Zhou J, Wang L. Role and Mechanism of Gut Microbiota in Human Disease. Front Cell Infect Microbiol 2021; 11:625913. [PMID: 33816335 PMCID: PMC8010197 DOI: 10.3389/fcimb.2021.625913] [Citation(s) in RCA: 184] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/26/2021] [Indexed: 12/12/2022] Open
Abstract
The human gut microbiome is a huge microbial community that plays an irreplaceable role in human life. With the further development of research, the influence of intestinal flora on human diseases has been gradually excavated. Gut microbiota (GM) dysbiosis has adverse health effects on the human body that will lead to a variety of chronic diseases. The underlying mechanisms of GM on human diseases are incredibly complicated. This review focuses on the regulation and mechanism of GM on neurodegenerative diseases, cardiovascular diseases, metabolic diseases and gastrointestinal diseases, thus providing a potential target for the prevention and treatment of disease.
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Affiliation(s)
- Yinwei Chen
- School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Jinghua Zhou
- Institute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, China.,School of Medicine, Zhejiang University, Hangzhou, China
| | - Li Wang
- Institute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, China.,Department of Evolutionary Studies of Biosystems, School of Advanced Sciences, Graduate University for Advanced Studies (SOKENDAI), Hayama, Japan
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Abstract
PURPOSE OF REVIEW Systemic inflammation increases as a consequence of aging (inflammaging) and contributes to age-related morbidities. Inflammation in people living with HIV is elevated compared with the general population even after prolonged suppression of viremia with anti-retroviral therapy. Mechanisms that contribute to inflammation during aging and in treated HIV disease are potentially interactive, leading to an exaggerated inflammatory phenotype in people with HIV. RECENT FINDINGS Recent studies highlight roles for anti-retroviral therapy, co-infections, immune system alterations, and microbiome perturbations as important contributors to HIV-associated inflammation. These factors likely contribute to increased risk of age-related morbidities in people living with HIV. Understanding mechanisms that exaggerate the inflammaging process in people with HIV may lead to improved intervention strategies, ultimately, extending both lifespan and healthspan.
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64
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Langan D, Perkins DJ, Vogel SN, Moudgil KD. Microbiota-Derived Metabolites, Indole-3-aldehyde and Indole-3-acetic Acid, Differentially Modulate Innate Cytokines and Stromal Remodeling Processes Associated with Autoimmune Arthritis. Int J Mol Sci 2021; 22:ijms22042017. [PMID: 33670600 PMCID: PMC7922345 DOI: 10.3390/ijms22042017] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 02/13/2021] [Indexed: 02/06/2023] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation of the synovial joints. Inflammation, new blood vessel formation (angiogenesis) and bone resorption (osteoclastogenesis) are three key processes involved in the joint damage and deformities of arthritis. Various gut microbiota-derived metabolites are implicated in RA pathogenesis. However, there is barely any information about the impact of two such metabolites, indole-3-aldehyde (IAld) and indole-3-acetic acid (I3AA), on arthritis-related processes. We conducted a comparative analysis of IAld and I3AA using established cell-based models to understand how they might influence RA pathogenesis. Although structurally similar, the bioactivities of these two metabolites were profoundly different. IAld but not I3AA, inhibited the expression of pro-inflammatory cytokines (IL-1β and IL-6) in RAW 264.7 (RAW) cells stimulated with heat-killed M. tuberculosis sonicate (Mtb) and lipopolysaccharide (LPS). IAld also exhibited pro-angiogenic activity and pro-osteoclastogenic activity. In contrast, I3AA exhibited anti-angiogenic activity on endothelial cell tube formation but had no effect on osteoclastogenesis. Both IAld and I3AA have been proposed as aryl hydrocarbon receptor (AhR) agonists. Use of CH-223191, an inhibitor of the AhR, suppressed the anti-angiogenic activity of I3AA but failed to mitigate the effects of IAld. Further investigation of the anti-inflammatory activities of IAld and I3AA in LPS-treated RAW cells indicated that inhibition of MyD88-dependent activation of NF-κB and MAPK pathways was not likely involved. Our results suggest that the relative bioavailability of these indole derivatives may differentially impact RA progression and possibly other diseases that share similar cellular processes.
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Affiliation(s)
- David Langan
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (D.L.); (D.J.P.); (S.N.V.)
- Research Service, Baltimore Veterans Affairs Medical Center, Baltimore, MD 21201, USA
| | - Darren J. Perkins
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (D.L.); (D.J.P.); (S.N.V.)
| | - Stefanie N. Vogel
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (D.L.); (D.J.P.); (S.N.V.)
| | - Kamal D. Moudgil
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (D.L.); (D.J.P.); (S.N.V.)
- Research Service, Baltimore Veterans Affairs Medical Center, Baltimore, MD 21201, USA
- Department of Medicine, Division of Rheumatology and Clinical Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Correspondence:
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65
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Qi C, Wang P, Fu T, Lu M, Cai Y, Chen X, Cheng L. A comprehensive review for gut microbes: technologies, interventions, metabolites and diseases. Brief Funct Genomics 2021; 20:42-60. [PMID: 33554248 DOI: 10.1093/bfgp/elaa029] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 12/13/2022] Open
Abstract
Gut microbes have attracted much more attentions in the recent decade since their essential roles in the development of metabolic diseases, cancer and neurological diseases. Considerable evidence indicates that the metabolism of gut microbes exert influences on intestinal homeostasis and human diseases. Here, we first reviewed two mainstream sequencing technologies involving 16s rRNA sequencing and metagenomic sequencing for gut microbes, and data analysis methods assessing alpha and beta diversity. Next, we introduced some observational studies reflecting that many factors, such as lifestyle and intake of diets, drugs, contribute to gut microbes' quantity and diversity. Then, metabolites produced by gut microbes were presented to understand that gut microbes exert on host homeostasis in the intestinal epithelium and immune system. Finally, we focused on the molecular mechanism of gut microbes on the occurrence and development of several common diseases. In-depth knowledge of the relationship among interventions, gut microbes and diseases might provide new insights in to disease prevention and treatment.
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66
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Kulkarni P, Devkumar P, Chattopadhyay I. Could dysbiosis of inflammatory and anti-inflammatory gut bacteria have an implications in the development of type 2 diabetes? A pilot investigation. BMC Res Notes 2021; 14:52. [PMID: 33549142 PMCID: PMC7868023 DOI: 10.1186/s13104-021-05466-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/28/2021] [Indexed: 12/16/2022] Open
Abstract
Objective Differential alterations in gut microbiota and chronic low-grade inflammation play a critical role in the development of Type 2 diabetes (T2D). Here we aimed to investigate if dysbiosis of inflammation and anti-inflammation-associated gut bacterial communities in fecal samples of individuals had any influence on T2D using a 16S rRNA gene of V3 region sequencing at Illumina MiSeq platform. Results Our findings showed that a higher abundance of inflammatory bacteria such as Lactobacillus ruminis, Ruminococcus gnavus, Bacteroides caccae, Butyricimonas, and Collinsella aerofaciens, and lower abundance of anti-inflammatory bacteria such as Faecalibacterium prausnitzii, and Butyrivibrio that likely play a role in the development of T2D. Our findings hint the potential of indigenous microbiota in developing diagnostic markers and therapeutic targets in T2D.
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Affiliation(s)
- Prasanna Kulkarni
- Institute of Ayurveda and Integrative Medicine (I-AIM), Bangalore, India
| | - Poornima Devkumar
- Institute of Ayurveda and Integrative Medicine (I-AIM), Bangalore, India
| | - Indranil Chattopadhyay
- Department of Life Sciences, Central University of Tamil Nadu, Thiruvarur, 610005, India.
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Simultaneous quantification of enterotoxins tilimycin and tilivalline in biological matrices using HPLC high resolution ESMS 2 based on isotopically 15N-labeled internal standards. Talanta 2021; 222:121677. [PMID: 33167283 DOI: 10.1016/j.talanta.2020.121677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/20/2022]
Abstract
Non-ribosomal peptides are one class of bacterial metabolites formed by gut microbiota. Intestinal resident Klebsiella oxytoca produces two pyrrolobenzodiazepines, tilivalline and tilimycin, via the same nonribosomal biosynthesis platform. These molecules cause human disease by genotoxic and tubulin inhibitory activities resulting in apoptosis of the intestinal epithelium, loss of barrier integrity and ultimately colitis. Here we report a fast, reliable, HPLC-HR-ESMS2 method for quantifying simultaneously the bacterial enterotoxins tilimycin and tilivalline in complex biological matrices. We synthesized and applied stable isotopically labeled internal standards for precise quantification of the metabolites. Sample preparation was optimized using clinical and laboratory specimens including serum, colonic fluid and stool. The developed method overcame the disadvantage of low selectivity by applying high resolution mass spectrometry in MS2 mode. High sensitivity and low interference from matrices were achieved and validated. We show that the approach is suitable for detection and quantification of the enterotoxic metabolites produced in vivo, in infected human or animal hosts, and in bacterial culture in vitro.
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68
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Micó-Carnero M, Rojano-Alfonso C, Álvarez-Mercado AI, Gracia-Sancho J, Casillas-Ramírez A, Peralta C. Effects of Gut Metabolites and Microbiota in Healthy and Marginal Livers Submitted to Surgery. Int J Mol Sci 2020; 22:E44. [PMID: 33375200 PMCID: PMC7793124 DOI: 10.3390/ijms22010044] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 12/12/2022] Open
Abstract
Microbiota is defined as the collection of microorganisms within the gastrointestinal ecosystem. These microbes are strongly implicated in the stimulation of immune responses. An unbalanced microbiota, termed dysbiosis, is related to the development of several liver diseases. The bidirectional relationship between the gut, its microbiota and the liver is referred to as the gut-liver axis. The translocation of bacterial products from the intestine to the liver induces inflammation in different cell types such as Kupffer cells, and a fibrotic response in hepatic stellate cells, resulting in deleterious effects on hepatocytes. Moreover, ischemia-reperfusion injury, a consequence of liver surgery, alters the microbiota profile, affecting inflammation, the immune response and even liver regeneration. Microbiota also seems to play an important role in post-operative outcomes (i.e., liver transplantation or liver resection). Nonetheless, studies to determine changes in the gut microbial populations produced during and after surgery, and affecting liver function and regeneration are scarce. In the present review we analyze and discuss the preclinical and clinical studies reported in the literature focused on the evaluation of alterations in microbiota and its products as well as their effects on post-operative outcomes in hepatic surgery.
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Affiliation(s)
- Marc Micó-Carnero
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (M.M.-C.); (C.R.-A.)
| | - Carlos Rojano-Alfonso
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (M.M.-C.); (C.R.-A.)
| | - Ana Isabel Álvarez-Mercado
- Departamento de Bioquímica y Biología Molecular II, Escuela de Farmacia, Universidad de Granada, 18071 Granada, Spain;
- Institut of Nutrition and Food Technology “José Mataix”, Center of Biomedical Research, University of Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs, GRANADA, Complejo Hospitalario Universitario de Granada, 18014 Granada, Spain
| | - Jordi Gracia-Sancho
- Liver Vascular Biology Research Group, Barcelona Hepatic Hemodynamic Laboratory IDIBAPS, 03036 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 08036 Barcelona, Spain
| | - Araní Casillas-Ramírez
- Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Ciudad Victoria 87087, Mexico;
- Facultad de Medicina e Ingeniería en Sistemas Computacionales de Matamoros, Universidad Autónoma de Tamaulipas, Matamoros 87300, Mexico
| | - Carmen Peralta
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (M.M.-C.); (C.R.-A.)
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69
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Mishima Y, Ishihara S. Molecular Mechanisms of Microbiota-Mediated Pathology in Irritable Bowel Syndrome. Int J Mol Sci 2020; 21:ijms21228664. [PMID: 33212919 PMCID: PMC7698457 DOI: 10.3390/ijms21228664] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
Irritable bowel syndrome (IBS) is one of the most prevalent functional gastrointestinal disorders, and accumulating evidence gained in both preclinical and clinical studies indicate the involvement of enteric microbiota in its pathogenesis. Gut resident microbiota appear to influence brain activity through the enteric nervous system, while their composition and function are affected by the central nervous system. Based on these results, the term “brain–gut–microbiome axis” has been proposed and enteric microbiota have become a potential therapeutic target in IBS cases. However, details regarding the microbe-related pathophysiology of IBS remain elusive. This review summarizes the existing knowledge of molecular mechanisms in the pathogenesis of IBS as well as recent progress related to microbiome-derived neurotransmitters, compounds, metabolites, neuroendocrine factors, and enzymes.
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70
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Shao H, Zhang C, Xiao N, Tan Z. Gut microbiota characteristics in mice with antibiotic-associated diarrhea. BMC Microbiol 2020; 20:313. [PMID: 33059603 PMCID: PMC7559773 DOI: 10.1186/s12866-020-01999-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Antibiotic-associated diarrhea (AAD), defined as diarrhea that occurs in association with the administration of antibiotics and without another clear etiology, is one of the most common adverse drug events of antibiotics therapy. We established a diarrhea model induced by gentamycin and cefradine to investigate the microbiota characteristics in the intestinal lumen of mice with AAD and provide insights into noteworthy bacteria related to gentamicin and cefradine-associated diarrhea. RESULTS The number of OTUs in the model group and the normal group was 983 and 2107, respectively, and 872 identical OTUs were shared between two groups. Species richness and species diversity of intestinal microbe were altered by antibiotics administration. PCoA showed a clear separation between AAD and health control. The dominant phyla of AAD mice were Firmicutes (52.63%) and Proteobacteria (46.37%). Among the genus with top 20 abundance, the relative abundance of 7 genera, Ruminococcus, Blautia, Enterococcus, Eubacterium, Clostridium, Coprococcus, and Aerococcus, were enriched in the model group. Based upon the LEfSe analysis, Enterococcus, Eubacterium, Ruminococcus, and Blautia were identified as potential biomarkers for AAD. CONCLUSIONS The bacterial diversity of the intestinal lumen was diminished after gentamicin and cefradine administration. The alterations in the abundance and composition of gut microbiota further led to the dysfunction of gut microbiota. More specifically, gentamicin and cefradine significantly increased the abundance of the opportunistic pathogens, of which Enterococcus and Clostridium were the most prominent and most worthy of attention.
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Affiliation(s)
- Haoqing Shao
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China.,Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine, Changsha, Hunan, China
| | - Chenyang Zhang
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China.,Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine, Changsha, Hunan, China
| | - Nenqun Xiao
- School of Pharmaceutical Science, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Zhoujin Tan
- Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine, Changsha, Hunan, China. .,School of Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China.
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71
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Anti-Inflammatory Properties and Gut Microbiota Modulation of Porphyra tenera Extracts in Dextran Sodium Sulfate-Induced Colitis in Mice. Antioxidants (Basel) 2020; 9:antiox9100988. [PMID: 33066339 PMCID: PMC7602078 DOI: 10.3390/antiox9100988] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/05/2020] [Accepted: 10/07/2020] [Indexed: 12/14/2022] Open
Abstract
Porphyra tenera (PT) is a functional seaweed food that has been reported for health benefits such as antioxidant, immunostimulant, anti-inflammation, and hepatoprotective effects. In this study, we investigated the effect of PT extracts on gut microbiota modulation in colitis-induced mice. The mice experiment was designed as three groups including normal mice (CTL), dextran sodium sulfate (DSS)-fed mice, and DSS plus PT extracts-fed mice (PTE). DSS was administrated through drinking water containing DSS for 1 week, and the PT extract was ingested into the gastrointestinal tract in mice. PT extract ameliorated the decreased body weight and colon length and improved disease activity index and pro-inflammatory cytokine expression. In addition, PT extract significantly shifted the gut microbiota of mice. DSS treatment significantly increased the portion of harmful bacteria (i.e., Helicobacter, Mucipirillum, and Parasutterella) and decreased the butyrate producing bacteria (i.e., Acetatifactor, Alistipes, Oscillibacter, and Clostridium_XIVb). PT extract increased the abundance of genera Clostridium_XIVb and also enriched some of predicted metabolic activities such as glyoxylate cycle, ethylmalonyl-CoA pathway, nitrate reduction, creatinine degradation, and glycine betaine metabolism. These results suggest that PT extract may ameliorate the DSS-induced colitis inflammation through regulating the compositions and functions of gut microbiota in mice.
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72
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Mayorgas A, Dotti I, Salas A. Microbial Metabolites, Postbiotics, and Intestinal Epithelial Function. Mol Nutr Food Res 2020; 65:e2000188. [DOI: 10.1002/mnfr.202000188] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/31/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Aida Mayorgas
- Department of Gastroenterology, Hospital Clínic ‐ IDIBAPS C/Rosselló, 149‐153, 3rd Floor Barcelona 08036 Spain
| | - Isabella Dotti
- Department of Gastroenterology, Hospital Clínic ‐ IDIBAPS C/Rosselló, 149‐153, 3rd Floor Barcelona 08036 Spain
| | - Azucena Salas
- Department of Gastroenterology, Hospital Clínic ‐ IDIBAPS C/Rosselló, 149‐153, 3rd Floor Barcelona 08036 Spain
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73
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He LH, Ren LF, Li JF, Wu YN, Li X, Zhang L. Intestinal Flora as a Potential Strategy to Fight SARS-CoV-2 Infection. Front Microbiol 2020; 11:1388. [PMID: 32582138 PMCID: PMC7295895 DOI: 10.3389/fmicb.2020.01388] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/29/2020] [Indexed: 01/08/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has spread rapidly worldwide, seriously endangering human health. In addition to the typical symptoms of pulmonary infection, patients with COVID-19 have been reported to have gastrointestinal symptoms and/or intestinal flora dysbiosis. It is known that a healthy intestinal flora is closely related to the maintenance of pulmonary and systemic health by regulating the host immune homeostasis. Role of the “gut-lung axis” has also been well-articulated. This review provides a novel suggestion that intestinal flora may be one of the mediators of the gastrointestinal responses and abnormal immune responses in hosts caused by SARS-CoV-2; improving the composition of intestinal flora and the proportion of its metabolites through probiotics, and personalized diet could be a potential strategy to prevent and treat COVID-19. More clinical and evidence-based medical trials may be initiated to determine the strategy.
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Affiliation(s)
- Li-Hong He
- The First Clinical Medical College, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou, China
| | - Long-Fei Ren
- The First Clinical Medical College, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou, China
| | - Jun-Feng Li
- The Department of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, China
| | - Yong-Na Wu
- Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou, China
| | - Xun Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou, China
| | - Lei Zhang
- The First Clinical Medical College, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou, China
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74
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Oncobiosis and Microbial Metabolite Signaling in Pancreatic Adenocarcinoma. Cancers (Basel) 2020; 12:cancers12051068. [PMID: 32344895 PMCID: PMC7281526 DOI: 10.3390/cancers12051068] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 02/06/2023] Open
Abstract
Pancreatic adenocarcinoma is one of the most lethal cancers in both men and women, with a median five-year survival of around 5%. Therefore, pancreatic adenocarcinoma represents an unmet medical need. Neoplastic diseases, such as pancreatic adenocarcinoma, often are associated with microbiome dysbiosis, termed oncobiosis. In pancreatic adenocarcinoma, the oral, duodenal, ductal, and fecal microbiome become dysbiotic. Furthermore, the pancreas frequently becomes colonized (by Helicobacter pylori and Malassezia, among others). The oncobiomes from long- and short-term survivors of pancreatic adenocarcinoma are different and transplantation of the microbiome from long-term survivors into animal models of pancreatic adenocarcinoma prolongs survival. The oncobiome in pancreatic adenocarcinoma modulates the inflammatory processes that drive carcinogenesis. In this review, we point out that bacterial metabolites (short chain fatty acids, secondary bile acids, polyamines, indole-derivatives, etc.) also have a role in the microbiome-driven pathogenesis of pancreatic adenocarcinoma. Finally, we show that bacterial metabolism and the bacterial metabolome is largely dysregulated in pancreatic adenocarcinoma. The pathogenic role of additional metabolites and metabolic pathways will be identified in the near future, widening the scope of this therapeutically and diagnostically exploitable pathogenic pathway in pancreatic adenocarcinoma.
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75
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Jiang S, Zhu Q, Mai M, Yang W, Du G. Vitamin B and vitamin D as modulators of gut microbiota in overweight individuals. Int J Food Sci Nutr 2020; 71:1001-1009. [PMID: 32283946 DOI: 10.1080/09637486.2020.1748580] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Growing evidence indicates that vitamin B (VB) and vitamin D (VD) are associated with the development of obesity. The effects of supplemental dietary VB and VD on the gut microbiota of obese individuals are still largely unknown. In the present study, 997 normoweight (NW) and 773 overweight (OW) samples were screened from the American Gut Project. The microbial α-diversity was not affected by VB, VD or VB combined with VD (VBD) supplementation in the normoweight population or the overweigh population. VD significantly modulated 20 gut microbial metabolic pathways in NW. Moreover, VBD supplementation significantly affected 3 phyla and 3 families and 22 pathways in the OW gut microbiota. In summary, our results highlight that VD and VBD might be necessary for reshaping the gut microbiota in NW and OW, respectively.
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Affiliation(s)
- Shangfei Jiang
- Human Anatomy Laboratory, Hainan Medical University, Haikou, China
| | - Qiwei Zhu
- Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou, China
| | - Mingxiao Mai
- Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou, China
| | - Wen Yang
- Laboratory of Pathogenic Biology and Immunology, Hainan Medical University, Haikou, China
| | - Guankui Du
- Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou, China
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Cueva C, Silva M, Pinillos I, Bartolomé B, Moreno-Arribas MV. Interplay between Dietary Polyphenols and Oral and Gut Microbiota in the Development of Colorectal Cancer. Nutrients 2020; 12:E625. [PMID: 32120799 PMCID: PMC7146370 DOI: 10.3390/nu12030625] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is the third most diagnosed type of cancer worldwide. Dietary features play an important role in its development, and the involvement of human microbial communities in this pathology has also recently been recognized. Individuals with CRC display alterations in gut bacterial composition and a notably higher abundance of putative oral bacteria in colonic tumors. Many experimental studies and preclinical evidence propose that dietary polyphenols have a relevant role in CRC development and progression, mainly attributed to their immunomodulatory activities. Furthermore, polyphenols can modulate oral and gut microbiota, and in turn, intestinal microbes catabolize polyphenols to release metabolites that are often more active and better absorbed than the original phenolic compounds. The current study aimed to review and summarize current knowledge on the role of microbiota and the interactions between dietary polyphenols and microbiota in relation to CRC development. We have highlighted the mechanisms by which dietary polyphenols and/or their microbial metabolites exert their action on the pathogenesis and prevention of CRC as modulators of the composition and/or activity of oral and intestinal microbiota, including novel screening biomarkers and possible nutritional therapeutic implications.
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Affiliation(s)
| | | | | | | | - M. Victoria Moreno-Arribas
- Institute of Food Science Research (CIAL), CSIC-UAM, C/Nicolás Cabrera 9, Campus de Cantoblanco, 28049 Madrid, Spain; (C.C.); (M.S.); (I.P.); (B.B.)
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