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Guardiola M, Rehues P, Amigó N, Arrieta F, Botana M, Gimeno-Orna JA, Girona J, Martínez-Montoro JI, Ortega E, Pérez-Pérez A, Sánchez-Margalet V, Pedro-Botet J, Ribalta J. Increasing the complexity of lipoprotein characterization for cardiovascular risk in type 2 diabetes. Eur J Clin Invest 2024; 54:e14214. [PMID: 38613414 DOI: 10.1111/eci.14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/15/2024]
Abstract
The burden of cardiovascular disease is particularly high among individuals with diabetes, even when LDL cholesterol is normal or within the therapeutic target. Despite this, cholesterol accumulates in their arteries, in part, due to persistent atherogenic dyslipidaemia characterized by elevated triglycerides, remnant cholesterol, smaller LDL particles and reduced HDL cholesterol. The causal link between dyslipidaemia and atherosclerosis in T2DM is complex, and our contention is that a deeper understanding of lipoprotein composition and functionality, the vehicle that delivers cholesterol to the artery, will provide insight for improving our understanding of the hidden cardiovascular risk of diabetes. This narrative review covers three levels of complexity in lipoprotein characterization: 1-the information provided by routine clinical biochemistry, 2-advanced nuclear magnetic resonance (NMR)-based lipoprotein profiling and 3-the identification of minor components or physical properties of lipoproteins that can help explain arterial accumulation in individuals with normal LDLc levels, which is typically the case in individuals with T2DM. This document highlights the importance of incorporating these three layers of lipoprotein-related information into population-based studies on ASCVD in T2DM. Such an attempt should inevitably run in parallel with biotechnological solutions that allow large-scale determination of these sets of methodologically diverse parameters.
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Affiliation(s)
- Montse Guardiola
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Pere Rehues
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Núria Amigó
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Departament de Ciències Mèdiques Bàsiques, Universitat Rovira i Virgili, Reus, Spain
- Biosfer Teslab, Reus, Spain
| | | | - Manuel Botana
- Departamento de Endocrinología y Nutrición, Hospital Universitario Lucus Augusti, Lugo, Spain
| | - José A Gimeno-Orna
- Endocrinology and Nutrition Department, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Josefa Girona
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - José Ignacio Martínez-Montoro
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
| | - Emilio Ortega
- Department of Endocrinology and Nutrition, Hospital Clínic, Barcelona, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - Antonio Pérez-Pérez
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Servicio de Endocrinología y Nutrición, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, Seville, Spain
| | - Juan Pedro-Botet
- Unidad de Lípidos y Riesgo Vascular, Department of Endocrinology and Nutrition, Hospital del Mar, Barcelona, Spain
- Department of Medicine, Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Josep Ribalta
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Bissonnette S, Lamantia V, Ouimet B, Cyr Y, Devaux M, Rabasa-Lhoret R, Chrétien M, Saleh M, Faraj M. Native low-density lipoproteins are priming signals of the NLRP3 inflammasome/interleukin-1β pathway in human adipose tissue and macrophages. Sci Rep 2023; 13:18848. [PMID: 37914804 PMCID: PMC10620147 DOI: 10.1038/s41598-023-45870-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/25/2023] [Indexed: 11/03/2023] Open
Abstract
Elevated plasma numbers of atherogenic apoB-lipoproteins (apoB), mostly as low-density lipoproteins (LDL), predict diabetes risk by unclear mechanisms. Upregulation of the NLRP3 inflammasome/interleukin-1 beta (IL-1β) system in white adipose tissue (WAT) is implicated in type 2 diabetes (T2D); however, metabolic signals that stimulate it remain unexplored. We hypothesized that (1) subjects with high-apoB have higher WAT IL-1β-secretion than subjects with low-apoB, (2) WAT IL-1β-secretion is associated with T2D risk factors, and (3) LDL prime and/or activate the WAT NLRP3 inflammasome. Forty non-diabetic subjects were assessed for T2D risk factors related to systemic and WAT glucose and fat metabolism. Regulation of the NLRP3 inflammasome was explored using LDL without/with the inflammasome's priming and activation controls (LPS and ATP). LDL induced IL1B-expression and IL-1β-secretion in the presence of ATP in WAT and macrophages. Subjects with high-apoB had higher WAT IL-1β-secretion independently of covariates. The direction of association of LDL-induced WAT IL-1β-secretion to T2D risk factors was consistently pathological in high-apoB subjects only. Adjustment for IL-1β-secretion eliminated the association of plasma apoB with T2D risk factors. In conclusion, subjects with high-apoB have higher WAT IL-1β-secretion that may explain their risk for T2D and may be related to LDL-induced priming of the NLRP3 inflammasome.ClinicalTrials.gov (NCT04496154): Omega-3 to Reduce Diabetes Risk in Subjects With High Number of Particles That Carry "Bad Cholesterol" in the Blood-Full Text View-ClinicalTrials.gov.
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Affiliation(s)
- Simon Bissonnette
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada
- Montréal Diabetes Research Center (MDRC), Montréal, QC, Canada
| | - Valérie Lamantia
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada
- Montréal Diabetes Research Center (MDRC), Montréal, QC, Canada
| | - Benjamin Ouimet
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada
| | - Yannick Cyr
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada
- Montréal Diabetes Research Center (MDRC), Montréal, QC, Canada
| | - Marie Devaux
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada
| | - Remi Rabasa-Lhoret
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada
- Montréal Diabetes Research Center (MDRC), Montréal, QC, Canada
| | - Michel Chrétien
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada
| | - Maya Saleh
- Faculty of Medicine, McGill University, Montréal, QC, Canada
- University of Bordeaux, Bordeaux, France
| | - May Faraj
- Faculty of Medicine, Université de Montréal, Montréal, QC, Canada.
- Institut de Recherches Cliniques de Montréal (IRCM), Office 1770.2, 110, Avenue Des Pins Ouest, Montréal, QC, H2W 1R7, Canada.
- Montréal Diabetes Research Center (MDRC), Montréal, QC, Canada.
- Faculty of Medicine, McGill University, Montréal, QC, Canada.
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Lê S, Cecchin-Albertoni C, Thomas C, Kemoun P, Minty M, Blasco-Baque V. The Role of Dysbiotic Oral Microbiota in Cardiometabolic Diseases: A Narrative Review. Diagnostics (Basel) 2023; 13:3184. [PMID: 37892006 PMCID: PMC10605832 DOI: 10.3390/diagnostics13203184] [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: 08/31/2023] [Revised: 09/25/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
Over the past decade, there have been significant advancements in the high-flow analysis of "omics," shedding light on the relationship between the microbiota and the host. However, the full recognition of this relationship and its implications in cardiometabolic diseases are still underway, despite advancements in understanding the pathophysiology of these conditions. Cardiometabolic diseases, which include a range of conditions from insulin resistance to cardiovascular disease and type 2 diabetes, continue to be the leading cause of mortality worldwide, with a persistently high morbidity rate. While the link between the intestinal microbiota and cardiometabolic risks has been extensively explored, the role of the oral microbiota, the second-largest microbiota in the human body, and specifically the dysbiosis of this microbiota in causing these complications, remains incompletely defined. This review aims to examine the association between the oral microbiota and cardiometabolic diseases, focusing on the dysbiosis of the oral microbiota, particularly in periodontal disease. Additionally, we will dive into the mechanistic aspects of this dysbiosis that contribute to the development of these complications. Finally, we will discuss potential prevention and treatment strategies, including the use of prebiotics, probiotics, and other interventions.
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Affiliation(s)
- Sylvie Lê
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
| | - Chiara Cecchin-Albertoni
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- RESTORE Research Center, CNRS, EFS, ENVT, Batiment INCERE, INSERM, Université de Toulouse, 4 bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Charlotte Thomas
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
| | - Philippe Kemoun
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- RESTORE Research Center, CNRS, EFS, ENVT, Batiment INCERE, INSERM, Université de Toulouse, 4 bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Matthieu Minty
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
| | - Vincent Blasco-Baque
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
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4
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Champion C, Neagoe RM, Effernberger M, Sala DT, Servant F, Christensen JE, Arnoriaga-Rodriguez M, Amar J, Lelouvier B, Loubieres P, Azalbert V, Minty M, Thomas C, Blasco-Baque V, Gamboa F, Tilg H, Cardellini M, Federici M, Fernández-Real JM, Loubes JM, Burcelin R. Human liver microbiota modeling strategy at the early onset of fibrosis. BMC Microbiol 2023; 23:34. [PMID: 36717776 PMCID: PMC9885577 DOI: 10.1186/s12866-023-02774-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 01/13/2023] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Gut microbiota is involved in the development of liver diseases such as fibrosis. We and others identified that selected sets of gut bacterial DNA and bacteria translocate to tissues, notably the liver, to establish a non-infectious tissue microbiota composed of microbial DNA and a low frequency live bacteria. However, the precise set of bacterial DNA, and thereby the corresponding taxa associated with the early stages of fibrosis need to be identified. Furthermore, to overcome the impact of different group size and patient origins we adapted innovative statistical approaches. Liver samples with low liver fibrosis scores (F0, F1, F2), to study the early stages of the disease, were collected from Romania(n = 36), Austria(n = 10), Italy(n = 19), and Spain(n = 17). The 16S rRNA gene was sequenced. We considered the frequency, sparsity, unbalanced sample size between cohorts to identify taxonomic profiles and statistical differences. RESULTS Multivariate analyses, including adapted spectral clustering with L1-penalty fair-discriminant strategies, and predicted metagenomics were used to identify that 50% of liver taxa associated with the early stage fibrosis were Enterobacteriaceae, Pseudomonadaceae, Xanthobacteriaceae and Burkholderiaceae. The Flavobacteriaceae and Xanthobacteriaceae discriminated between F0 and F1. Predicted metagenomics analysis identified that the preQ0 biosynthesis and the potential pathways involving glucoryranose and glycogen degradation were negatively associated with liver fibrosis F1-F2 vs F0. CONCLUSIONS Without demonstrating causality, our results suggest first a role of bacterial translocation to the liver in the progression of fibrosis, notably at the earliest stages. Second, our statistical approach can identify microbial signatures and overcome issues regarding sample size differences, the impact of environment, and sets of analyses. TRIAL REGISTRATION TirguMECCH ROLIVER Prospective Cohort for the Identification of Liver Microbiota, registration 4065/2014. Registered 01 01 2014.
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Affiliation(s)
- Camille Champion
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France ,grid.15781.3a0000 0001 0723 035XInstitut de Mathématiques de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Radu M. Neagoe
- Second Department of Surgery, Emergency Mureş County Hospital, University of Medicine Pharmacy, Science and Technology “George Emil Palade” Tîrgu Mures, Târgu Mureș, Romania
| | - Maria Effernberger
- grid.5361.10000 0000 8853 2677Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology & Metabolism, Medical University of Innsbruck, Innsbruck, Austria
| | - Daniela T. Sala
- Second Department of Surgery, Emergency Mureş County Hospital, University of Medicine Pharmacy, Science and Technology “George Emil Palade” Tîrgu Mures, Târgu Mureș, Romania
| | | | - Jeffrey E. Christensen
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France
| | - Maria Arnoriaga-Rodriguez
- grid.411295.a0000 0001 1837 4818Department of Diabetes, Endocrinology and Nutrition, University Hospital of Girona ‘Dr Josep Trueta’, Girona, Spain ,grid.429182.4Institut d’Investigacio Biomedica de Girona IdibGi, Girona, Spain ,CIBER Fisiopatologia de La Obesidad Y Nutricion, Girona, Spain
| | - Jacques Amar
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France ,grid.414295.f0000 0004 0638 3479Therapeutics Department, Rangueil Hospital, Toulouse, France
| | | | - Pascale Loubieres
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France
| | - Vincent Azalbert
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France
| | - Matthieu Minty
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France
| | - Charlotte Thomas
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France
| | - Vincent Blasco-Baque
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France
| | - Fabrice Gamboa
- grid.15781.3a0000 0001 0723 035XInstitut de Mathématiques de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Herbert Tilg
- grid.5361.10000 0000 8853 2677Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology & Metabolism, Medical University of Innsbruck, Innsbruck, Austria
| | - Marina Cardellini
- grid.6530.00000 0001 2300 0941Department of Systems Medicine, University of Rome “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy
| | - Massimo Federici
- grid.6530.00000 0001 2300 0941Department of Systems Medicine, University of Rome “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy
| | - Jose-Manuel Fernández-Real
- grid.411295.a0000 0001 1837 4818Department of Diabetes, Endocrinology and Nutrition, University Hospital of Girona ‘Dr Josep Trueta’, Girona, Spain ,grid.429182.4Institut d’Investigacio Biomedica de Girona IdibGi, Girona, Spain ,CIBER Fisiopatologia de La Obesidad Y Nutricion, Girona, Spain
| | - Jean Michel Loubes
- grid.15781.3a0000 0001 0723 035XInstitut de Mathématiques de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Rémy Burcelin
- grid.7429.80000000121866389Institut National de La Santé Et de La Recherche Médicale (INSERM), Toulouse, France ,grid.15781.3a0000 0001 0723 035XUnité Mixte de Recherche (UMR) 1297, Institut Des Maladies Métaboliques Et Cardiovasculaires (I2MC), Team 2: ‘Intestinal Risk FactorsDiabetesDyslipidemia’, Université Paul Sabatier (UPS), F-31432 Toulouse Cedex 4, France
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Wang H, Reddy ST, Fogelman AM. The role of gut-derived oxidized lipids and bacterial lipopolysaccharide in systemic inflammation and atherosclerosis. Curr Opin Lipidol 2022; 33:277-282. [PMID: 35979993 PMCID: PMC9581106 DOI: 10.1097/mol.0000000000000841] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW This review explores mechanisms by which gut-derived bacteriallipopolysaccharide (LPS) and oxidized phospholipids contribute to chronic systemic inflammation and atherosclerosis. RECENT FINDINGS Gut-derived LPS enters through the small intestine via two distinct pathways that involve high density lipoproteins (HDL) and chylomicrons. Gut-derived LPS can bind to the LPS-binding protein (LBP) and to HDL 3 in the small intestine and travel through the portal vein to the liver where it does not elicit an inflammatory reaction, and is inactivated or it can bind to HDL 2 and travel through the portal vein to the liver where it elicits an inflammatory reaction. Alternatively, in the small intestine, LPS can bind to LBP and chylomicrons and travel through the lymphatics to the systemic circulation and enhance inflammatory processes including atherosclerosis. Oxidized phospholipids formed in the small intestine regulate the levels and uptake of LPS in small intestine by regulating antimicrobial proteins such as intestinal alkaline phosphatase. Gut-derived LPS and oxidized phospholipids may be responsible for the persistent inflammation seen in some persons with human immunodeficiency virus on potent antiretroviral therapy with undetectable virus levels. SUMMARY By targeting gut-derived oxidized phospholipids, the uptake of gut-derived LPS may be reduced to decrease systemic inflammation and atherosclerosis.
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Affiliation(s)
- Huan Wang
- Department of Medicine, Division of Cardiology
| | - Srinivasa T. Reddy
- Department of Medicine, Division of Cardiology
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles California, USA
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Wei Z, Li F, Pi G. Association Between Gut Microbiota and Osteoarthritis: A Review of Evidence for Potential Mechanisms and Therapeutics. Front Cell Infect Microbiol 2022; 12:812596. [PMID: 35372125 PMCID: PMC8966131 DOI: 10.3389/fcimb.2022.812596] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/24/2022] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a multifactorial joint disease characterized by degeneration of articular cartilage, which leads to joints pain, disability and reduced quality of life in patients with OA. Interpreting the potential mechanisms underlying OA pathogenesis is crucial to the development of new disease modifying treatments. Although multiple factors contribute to the initiation and progression of OA, gut microbiota has gradually been regarded as an important pathogenic factor in the development of OA. Gut microbiota can be regarded as a multifunctional “organ”, closely related to a series of immune, metabolic and neurological functions. This review summarized research evidences supporting the correlation between gut microbiota and OA, and interpreted the potential mechanisms underlying the correlation from four aspects: immune system, metabolism, gut-brain axis and gut microbiota modulation. Future research should focus on whether there are specific gut microbiota composition or even specific pathogens and the corresponding signaling pathways that contribute to the initiation and progression of OA, and validate the potential of targeting gut microbiota for the treatment of patients with OA.
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Affiliation(s)
| | - Feng Li
- *Correspondence: Feng Li, ; Guofu Pi,
| | - Guofu Pi
- *Correspondence: Feng Li, ; Guofu Pi,
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Mohr AE, Crawford M, Jasbi P, Fessler S, Sweazea KL. Lipopolysaccharide and the gut microbiota: Considering structural variation. FEBS Lett 2022; 596:849-875. [PMID: 35262962 DOI: 10.1002/1873-3468.14328] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 11/10/2022]
Abstract
Systemic inflammation is associated with chronic disease and is purported to be a main pathogenic mechanism underlying metabolic conditions. Microbes harbored in the host gastrointestinal tract release signaling byproducts from their cell wall, such as lipopolysaccharides (LPS), which can act locally and, after crossing the gut barrier and entering circulation, also systemically. Defined as metabolic endotoxemia, elevated concentrations of LPS in circulation are associated with metabolic conditions and chronic disease. As such, measurement of LPS is highly prevalent in animal and human research investigating these states. Indeed, LPS can be a potent stimulant of host immunity but this response depends on the microbial species' origin, a parameter often overlooked in both preclinical and clinical investigations. Indeed, the lipid A portion of LPS is mutable and comprises the main virulence and endotoxic component, thus contributing to the structural and functional diversity among LPSs from microbial species. In this review, we discuss how such structural differences in LPS can induce differential immunological responses in the host.
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Affiliation(s)
- Alex E Mohr
- College of Health Solutions, Arizona State University, Phoenix, Arizona, United States of America
| | - Meli'sa Crawford
- Biomedical Sciences, University of Riverside, California, Riverside, California, United States of America
| | - Paniz Jasbi
- College of Health Solutions, Arizona State University, Phoenix, Arizona, United States of America
| | - Samantha Fessler
- College of Health Solutions, Arizona State University, Phoenix, Arizona, United States of America
| | - Karen L Sweazea
- College of Health Solutions, Arizona State University, Phoenix, Arizona, United States of America.,School of Life Sciences, Arizona State University, Tempe, Arizona, United States of America
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8
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Characterization of the LPS and 3OHFA Contents in the Lipoprotein Fractions and Lipoprotein Particles of Healthy Men. Biomolecules 2021; 12:biom12010047. [PMID: 35053195 PMCID: PMC8773495 DOI: 10.3390/biom12010047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/23/2021] [Accepted: 12/25/2021] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory disease that is caused by the accumulation of LDL particles in the intima, causing the activation of immune cells and triggering an inflammatory response. LPS is a potent activator of the innate immune response and it can be transported by lipoproteins. Since humans are much more sensitive to LPS than other mammals, and very low amounts of LPS can elicit an immune response, the aim of this study is to characterize the distribution of LPS and its immunogenic portion (3OHFAs) among lipoprotein types of healthy men. We separated lipoprotein fractions by ultracentrifugation and the amount of each 3OHFA was measured by MS in each lipoprotein fraction to calculate LPS concentration. Lipoprotein particle concentration was measured by NMR. LDL and HDL fractions transported the highest concentration of LPS (35.7% and 31.5%, respectively), but VLDL particles carried more LPS molecules per particle (0.55 molecules/particle) than LDL or HDL (p < 0.01). The distribution of LPS and all 3OHFAs among lipoprotein fractions showed high interindividual variability, suggesting that they may be studied as a potential biomarker. This may help understand the role of LPS in atherosclerosis in those cases where the disease cannot be explained by traditional risk factors.
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High-Fat Diet Induces Disruption of the Tight Junction-Mediated Paracellular Barrier in the Proximal Small Intestine Before the Onset of Type 2 Diabetes and Endotoxemia. Dig Dis Sci 2021; 66:3359-3374. [PMID: 33104937 DOI: 10.1007/s10620-020-06664-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 10/06/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND/AIM A link between an impaired intestinal barrier, endotoxemia, and the pathogenesis of metabolic diseases, such as type 2 diabetes mellitus (T2DM), has been proposed. In previous work, we have demonstrated that the tight junction (TJ)-mediated intestinal barrier in ileum/colon was marginally changed in prediabetic mice; therefore, it does not seem to mainly contribute to the T2DM onset. In this study, the TJ-mediated epithelial barrier in the duodenum and jejunum was evaluated in mice during the development of type 2 prediabetes. METHODS/RESULTS HF diet induced prediabetes after 60 days associated with a significant rise in intestinal permeability to the small-sized marker Lucifer yellow in these mice, with no histological signs of mucosal inflammation or rupture of the proximal intestine epithelium. As revealed by immunofluorescence, TJ proteins, such as claudins-1, -2, -3, and ZO-1, showed a significant decrease in junctional content in duodenum and jejunum epithelia, already after 15 days of treatment, suggesting a rearrangement of the TJ structure. However, no significant change in total cell content of these proteins was observed in intestinal epithelium homogenates, as assessed by immunoblotting. Despite the changes in intestinal permeability and TJ structure, the prediabetic mice showed similar LPS, zonulin, and TNF-α levels in plasma or adipose tissue, and in intestinal segments as compared to the controls. CONCLUSION Disruption of the TJ-mediated paracellular barrier in the duodenum and jejunum is an early event in prediabetes development, which occurs in the absence of detectable endotoxemia/inflammation and may contribute to the HF diet-induced increase in intestinal permeability.
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Brun P, Piovan A, Caniato R, Dalla Costa V, Pauletto A, Filippini R. Anti-Inflammatory Activities of Euglena gracilis Extracts. Microorganisms 2021; 9:2058. [PMID: 34683379 PMCID: PMC8537577 DOI: 10.3390/microorganisms9102058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/17/2021] [Accepted: 09/24/2021] [Indexed: 11/16/2022] Open
Abstract
Dietary supplementation with nutrients able to control intestinal and systemic inflammation is of marketable interest. Indeed, gastrointestinal homeostasis plays a significant role in maintaining human health. In this setting, E. gracilis may sustain or promote human health, but the effects on the intestinal inflammatory milieu are not clear. In this study, we investigated the anti-inflammatory activity of E. gracilis and inferred possible mechanisms. Paramylon, crude, and fractionated extracts were obtained from E. gracilis grown in vitro. Phytoconstituents of the extracts were characterized using TLC and HPLC UV-Vis. The anti-inflammatory and antioxidant activities were investigated in primary human macrophages and an intestinal epithelial cell line (HT-29). The analysis of the extracts led to identifying β-carotene, neoxanthin, diadinoxanthin, canthaxanthin, and breakdown products such as pheophytins and pheophorbides. E. gracilis fractionated extracts reduced the production of tumor necrosis factor-α triggered by bacterial lipopolysaccharide (LPS) in the short and long terms. Pheophytin a and b and canthaxanthin increased the intracellular reducing potential and dampened the production of LPS-induced reactive oxygen species and lipid peroxidation, intracellular events usually involved in the perpetuation of chronic inflammatory disorders. This study rationalizes the role of specific extract fractions of E. gracilis in controlling LPS-driven intestinal inflammation.
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Affiliation(s)
- Paola Brun
- Department of Molecular Medicine, Section of Microbiology, University of Padova, Via A. Gabelli 63, 35127 Padova, Italy;
| | - Anna Piovan
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy; (A.P.); (R.C.); (V.D.C.); (R.F.)
| | - Rosy Caniato
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy; (A.P.); (R.C.); (V.D.C.); (R.F.)
| | - Vanessa Dalla Costa
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy; (A.P.); (R.C.); (V.D.C.); (R.F.)
| | - Anthony Pauletto
- Department of Molecular Medicine, Section of Microbiology, University of Padova, Via A. Gabelli 63, 35127 Padova, Italy;
| | - Raffaella Filippini
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy; (A.P.); (R.C.); (V.D.C.); (R.F.)
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Awasthi A, Singh SK, Kumar B, Gulati M, Kumar R, Wadhwa S, Khursheed R, Corrie L, Kr A, Kumar R, Patni P, Kaur J, Vishwas S, Yadav A. Treatment Strategies Against Diabetic Foot Ulcer: Success so Far and the Road Ahead. Curr Diabetes Rev 2021; 17:421-436. [PMID: 33143613 DOI: 10.2174/1573399816999201102125537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 10/15/2020] [Accepted: 10/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetic foot ulcer (DFU) is one of the leading complications of type-2 diabetes mellitus. It is associated with neuropathy and peripheral arterial disease of the lower limb in patients with diabetes. There are four stages of wound healing, namely hemostasis phase, inflammatory phase, proliferative phase and maturation phase. In the case of DFU, all these stages are disturbed which lead to delay in healing and consequently to lower limb amputation. Conventional dosage forms like tablets, creams, ointments, gels and capsules have been used for the treatment of diabetic foot ulcer for many years. INTRODUCTION In this review, the global prevalence as well as etiopathogenesis related to diabetic foot ulcer have been discussed. The potential role of various synthetic and herbal drugs, as well as their conventional dosage forms in the effective management of DFU have been discussed in detail. METHODS Structured search of bibliographic databases from previously published peer-reviewed research papers was explored and data has been represented in terms of various approaches that are used for the treatment of DFU. RESULTS About 148 papers, including both research and review articles, were included in this review to produce a comprehensive as well as a readily understandable article. A series of herbal and synthetic drugs have been discussed along with their current status of treatment in terms of dose and mechanism of action. CONCLUSION DFU has become one of the most common complications in patients having diabetes for more than ten years. Hence, understanding the root cause and its successful treatment is a big challenge because it depends upon multiple factors such as the judicious selection of drugs as well as proper control of blood sugar level. Most of the drugs that have been used so far either belong to the category of antibiotics, antihyperglycaemic or they have been repositioned. In clinical practice, much focus has been given to dressings that have been used to cover the ulcer. The complete treatment of DFU is still a farfetched dream to be achieved and it is expected that combination therapy of herbal and synthetic drugs with multiple treatment pathways could be able to offer better management of DFU.
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Affiliation(s)
- Ankit Awasthi
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Bimlesh Kumar
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Monica Gulati
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Rajesh Kumar
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Sheetu Wadhwa
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Rubiya Khursheed
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Leander Corrie
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Arya Kr
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Rajan Kumar
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Pooja Patni
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Jaskiran Kaur
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Sukriti Vishwas
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
| | - Ankit Yadav
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara, 144411, Punjab, India
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Dargent A, Pais de Barros JP, Saheb S, Bittar R, Le Goff W, Carrié A, Gautier T, Fournel I, Rerole AL, Choubley H, Masson D, Lagrost L, Quenot JP. LDL apheresis as an alternate method for plasma LPS purification in healthy volunteers and dyslipidemic and septic patients. J Lipid Res 2020; 61:1776-1783. [PMID: 33037132 PMCID: PMC7707173 DOI: 10.1194/jlr.ra120001132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Lipopolysaccharide (LPS) is a key player for innate immunity activation. It is therefore a prime target for sepsis treatment, as antibiotics are not sufficient to improve outcome during septic shock. An extracorporeal removal method by polymyxin (PMX) B direct hemoperfusion (PMX-DHP) is used in Japan, but recent trials failed to show a significant lowering of circulating LPS levels after PMX-DHP therapy. PMX-DHP has a direct effect on LPS molecules. However, LPS is not present in a free form in the circulation, as it is mainly carried by lipoproteins, including LDLs. Lipoproteins are critical for physiological LPS clearance, as LPSs are carried by LDLs to the liver for elimination. We hypothesized that LDL apheresis could be an alternate method for LPS removal. First, we demonstrated in vitro that LDL apheresis microbeads are almost as efficient as PMX beads to reduce LPS concentration in LPS-spiked human plasma, whereas it is not active in PBS. We found that PMX was also adsorbing lipoproteins, although less specifically. Then, we found that endogenous LPS of patients treated by LDL apheresis for familial hypercholesterolemia is also removed during their LDL apheresis sessions, with both electrostatic-based devices and filtration devices. Finally, LPS circulating in the plasma of septic shock and severe sepsis patients with gram-negative bacteremia was also removed in vitro by LDL adsorption. Overall, these results underline the importance of lipoproteins for LPS clearance, making them a prime target to study and treat endotoxemia-related conditions.
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Affiliation(s)
- Auguste Dargent
- Médecine Intensive Réanimation, Hôpital Edouard Herriot, Lyon, France; Université Bourgogne Franche-Comté, LNC, Dijon, France; INSERM, LNC UMR1231, Dijon, France; FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France.
| | - Jean-Paul Pais de Barros
- Université Bourgogne Franche-Comté, LNC, Dijon, France; INSERM, LNC UMR1231, Dijon, France; FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France
| | - Samir Saheb
- Service d'endocrinologie et d'aphérèse, Hôpital Pitié Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Randa Bittar
- Service de Biochimie métabolique, Hôpital Pitié Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Wilfried Le Goff
- Sorbonne University, INSERM, Institute of Cardiometabolism and Nutrition (ICAN), UMR_S1166, Hôpital de la Pitié, Paris, France
| | - Alain Carrié
- Sorbonne University, INSERM, Institute of Cardiometabolism and Nutrition (ICAN), UMR_S1166, Hôpital de la Pitié, Paris, France; Hôpitaux Universitaires Pitié-Salpêtrière/Charles-Foix, Department of Biochemistry for Endocrinology and Oncology, Obesity and Dyslipidemia Genetics Unit, Paris, France
| | - Thomas Gautier
- Université Bourgogne Franche-Comté, LNC, Dijon, France; INSERM, LNC UMR1231, Dijon, France; FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France
| | - Isabelle Fournel
- INSERM, CIC 1432, Module Epidémiologie Clinique, Dijon, France; CHU Dijon-Bourgogne, Centre d'Investigation Clinique, Module Epidémiologie Clinique/Essais Cliniques, Dijon, France
| | - Anne Laure Rerole
- Université Bourgogne Franche-Comté, LNC, Dijon, France; INSERM, LNC UMR1231, Dijon, France; FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France
| | - Hélène Choubley
- Université Bourgogne Franche-Comté, LNC, Dijon, France; INSERM, LNC UMR1231, Dijon, France; FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France
| | - David Masson
- Université Bourgogne Franche-Comté, LNC, Dijon, France; INSERM, LNC UMR1231, Dijon, France; FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France; Service de Biochimie médicale, CHU Dijon, Dijon, France
| | - Laurent Lagrost
- Université Bourgogne Franche-Comté, LNC, Dijon, France; INSERM, LNC UMR1231, Dijon, France; FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France; Service de Biochimie médicale, CHU Dijon, Dijon, France
| | - Jean-Pierre Quenot
- FCS Bourgogne-Franche Comté, LipSTIC LabEx, Dijon, France; INSERM, CIC 1432, Module Epidémiologie Clinique, Dijon, France; CHU Dijon-Bourgogne, Centre d'Investigation Clinique, Module Epidémiologie Clinique/Essais Cliniques, Dijon, France; Médecine Intensive Réanimation, CHU Dijon, Dijon, France
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Type 2 Diabetes Mellitus Associated with Obesity (Diabesity). The Central Role of Gut Microbiota and Its Translational Applications. Nutrients 2020; 12:nu12092749. [PMID: 32917030 PMCID: PMC7551493 DOI: 10.3390/nu12092749] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/31/2020] [Accepted: 09/04/2020] [Indexed: 02/07/2023] Open
Abstract
Obesity is a condition of rising prevalence worldwide, with important socioeconomic implications, being considered as a growing public health concern. Frequently, obesity brings other complications in addition to itself—like Type 2 Diabetes Mellitus (T2DM)—sharing origin, risk factors and pathophysiological mechanisms. In this context, some authors have decided to include both conditions as a unique entity known as “diabesity”. In fact, understanding diabesity as a single disease is possible to maximise the benefits from therapies received in these patients. Gut microbiota plays a key role in individual’s health, and their alterations, either in its composition or derived products are related to a wide range of metabolic disorders like T2DM and obesity. The present work aims to collect the different changes reported in gut microbiota in patients with T2DM associated with obesity and their possible role in the onset, development, and establishment of the disease. Moreover, current research lines to modulate gut microbiota and the potential clinical translation derived from the knowledge of this system will also be reviewed, which may provide support for a better clinical management of such a complex condition.
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14
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McElvaney OJ, Zaslona Z, Becker-Flegler K, Palsson-McDermott EM, Boland F, Gunaratnam C, Gulbins E, O'Neill LA, Reeves EP, McElvaney NG. Specific Inhibition of the NLRP3 Inflammasome as an Antiinflammatory Strategy in Cystic Fibrosis. Am J Respir Crit Care Med 2020; 200:1381-1391. [PMID: 31454256 DOI: 10.1164/rccm.201905-1013oc] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Rationale: Cystic fibrosis (CF) pulmonary disease is characterized by chronic infection with Pseudomonas aeruginosa and sustained neutrophil-dominant inflammation. The lack of effective antiinflammatory therapies for people with CF (PWCF) represents a significant challenge.Objectives: To identify altered immunometabolism in the CF neutrophil and investigate the feasibility of specific inhibition of the NLRP3 (NOD-, LRR-, and pyrin domain-containing protein 3) inflammasome as a CF antiinflammatory strategy in vivo.Methods: Key markers of increased aerobic glycolysis, known as a Warburg effect, including cytosolic PKM2 (pyruvate kinase M2), phosphorylated PKM2, succinate, HIF-1α (hypoxia-inducible factor-1α), lactate, and the IL-1β precursor pro-IL-1β, as well as caspase-1 activity and processing of pro-IL-1β to IL-1β by the NLRP3 inflammasome, were measured in neutrophils from blood and airway secretions from healthy control subjects (n = 12), PWCF (n = 16), and PWCF after double-lung transplantation (n = 6). The effects of specific inhibition of NLRP3 on airway inflammation and bacterial clearance in a murine CF model were subsequently assessed in vivo.Measurements and Main Results: CF neutrophils display increased aerobic glycolysis in the systemic circulation. This effect is driven by low-level endotoxemia, unaffected by CFTR (cystic fibrosis transmembrane conductance regulator) modulation, and resolves after transplant. The increased pro-IL-1β produced is processed to its mature active form in the LPS-rich CF lung by the NLRP3 inflammasome via caspase-1. Specific NLRP3 inhibition in vivo with MCC950 inhibited IL-1β in the lungs of CF mice (P < 0.0001), resulting in significantly reduced airway inflammation and improved Pseudomonas clearance (P < 0.0001).Conclusions: CF neutrophil immunometabolism is altered in response to inflammation. NLRP3 inflammasome inhibition may have an antiinflammatory and anti-infective role in CF.
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Affiliation(s)
- Oliver J McElvaney
- Irish Centre for Genetic Lung Disease, Department of Medicine, and.,Cystic Fibrosis Unit, Beaumont Hospital, Dublin, Ireland
| | - Zbigniew Zaslona
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; and
| | | | - Eva M Palsson-McDermott
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; and
| | - Fiona Boland
- Division of Biostatistics and Population Health Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Erich Gulbins
- Department of Molecular Biology, University Duisburg-Essen, Essen, Germany
| | - Luke A O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; and
| | - Emer P Reeves
- Irish Centre for Genetic Lung Disease, Department of Medicine, and
| | - Noel G McElvaney
- Irish Centre for Genetic Lung Disease, Department of Medicine, and.,Cystic Fibrosis Unit, Beaumont Hospital, Dublin, Ireland
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15
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Leskelä J, Pietiäinen M, Safer A, Lehto M, Metso J, Malle E, Buggle F, Becher H, Sundvall J, Grau AJ, Pussinen PJ, Palm F. Serum lipopolysaccharide neutralizing capacity in ischemic stroke. PLoS One 2020; 15:e0228806. [PMID: 32084157 PMCID: PMC7034831 DOI: 10.1371/journal.pone.0228806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 01/21/2020] [Indexed: 12/13/2022] Open
Abstract
Introduction Periodontitis is associated with increased serum lipopolysaccharide (LPS) activity, which may be one mechanism linking periodontitis with the risk of cardiovascular diseases. As LPS-carrying proteins including lipoproteins modify LPS-activity, we investigated the determinants of serum LPS-neutralizing capacity (LPS-NC) in ischemic stroke. The association of LPS-NC and Aggregatibacter actinomycetemcomitans, a major microbial biomarker in periodontitis, was also investigated. Materials and methods The assay to measure LPS-NC was set up by spiking serum samples with E. coli LPS. The LPS-NC, LPS-binding protein (LBP), soluble CD14 (sCD14), lipoprotein profiles, apo(lipoprotein) A-I, apoB, and phospholipid transfer protein (PLTP) activity, were determined in 98 ischemic stroke patients and 100 age- and sex-matched controls. Serum and saliva immune response to A. actinomycetemcomitans, its concentration in saliva, and serotype-distribution were examined. Results LPS-NC values ranged between 51–83% in the whole population. Although several of the LPS-NC determinants differed significantly between cases and controls (PLTP, sCD14, apoA-I, HDL-cholesterol), the levels did not (p = 0.056). The main determinants of LPS-NC were i) triglycerides (β = -0.68, p<0.001), and ii) HDL cholesterol (0.260, <0.001), LDL cholesterol (-0.265, <0.001), PLTP (-0.196, 0.011), and IgG against A. actinomycetemcomitans (0.174, 0.011). Saliva A. actinomycetemcomitans concentration was higher [log mean (95% CI), 4.39 (2.35–8.19) vs. 10.7 (5.45–21) genomes/ml, p = 0.023) and serotype D more frequent (4 vs. 0%, p = 0.043) in cases than controls. Serotypeablity or serotypes did not, however, relate to the LPS-NC. Conclusion Serum LPS-NC comprised low PLTP-activity, triglyceride and LDL cholesterol concentrations, as well as high HDL cholesterol and IgG against A. actinomycetemcomitans. The present findings let us to conclude that LPS-NC did not associate with stroke.
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Affiliation(s)
- Jaakko Leskelä
- Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Milla Pietiäinen
- Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Anton Safer
- Institute of Global Health, University of Heidelberg, Heidelberg, Germany
| | - Markku Lehto
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland
| | - Jari Metso
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Ernst Malle
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Florian Buggle
- Department of Neurology, Klinikum Ludwigshafen, Ludwigshafen, Germany
| | - Heiko Becher
- University Medical Center Hamburg-Eppendorf, Institute of Medical Biometry and Epidemiology, Hamburg, Germany
- University Hospital Heidelberg, Institute of Global Health, Heidelberg, Germany
| | - Jouko Sundvall
- National Institute for Health and Welfare, Helsinki, Finland
| | - Armin J. Grau
- Department of Neurology, Klinikum Ludwigshafen, Ludwigshafen, Germany
| | - Pirkko J. Pussinen
- Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
- * E-mail:
| | - Frederick Palm
- Department of Neurology, Helios Klinikum Schleswig, Schleswig, Germany
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Regulation of Gut Microbiota and Metabolic Endotoxemia with Dietary Factors. Nutrients 2019; 11:nu11102277. [PMID: 31547555 PMCID: PMC6835897 DOI: 10.3390/nu11102277] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/13/2019] [Accepted: 09/18/2019] [Indexed: 02/08/2023] Open
Abstract
Metabolic endotoxemia is a condition in which blood lipopolysaccharide (LPS) levels are elevated, regardless of the presence of obvious infection. It has been suggested to lead to chronic inflammation-related diseases such as obesity, type 2 diabetes mellitus, non-alcoholic fatty liver disease (NAFLD), pancreatitis, amyotrophic lateral sclerosis, and Alzheimer’s disease. In addition, it has attracted attention as a target for the prevention and treatment of these chronic diseases. As metabolic endotoxemia was first reported in mice that were fed a high-fat diet, research regarding its relationship with diets has been actively conducted in humans and animals. In this review, we summarize the relationship between fat intake and induction of metabolic endotoxemia, focusing on gut dysbiosis and the influx, kinetics, and metabolism of LPS. We also summarize the recent findings about dietary factors that attenuate metabolic endotoxemia, focusing on the regulation of gut microbiota. We hope that in the future, control of metabolic endotoxemia using dietary factors will help maintain human health.
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Pietiäinen M, Liljestrand JM, Kopra E, Pussinen PJ. Mediators between oral dysbiosis and cardiovascular diseases. Eur J Oral Sci 2019; 126 Suppl 1:26-36. [PMID: 30178551 DOI: 10.1111/eos.12423] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2018] [Indexed: 12/11/2022]
Abstract
Clinical periodontitis is associated with an increased risk for cardiovascular diseases (CVDs) through systemic inflammation as the etiopathogenic link. Whether the oral microbiota, especially its quality, quantity, serology, and virulence factors, plays a role in atherogenesis is not clarified. Patients with periodontitis are exposed to bacteria and their products, which have access to the circulation directly through inflamed oral tissues and indirectly (via saliva) through the gastrointestinal tract, resulting in systemic inflammatory and immunologic responses. Periodontitis is associated with persistent endotoxemia, which has been identified as a notable cardiometabolic risk factor. The serology of bacterial biomarkers for oral dysbiosis is associated with an increased risk for subclinical atherosclerosis, prevalent and future coronary artery disease, and incident and recurrent stroke. In addition to species-specific antibodies, the immunologic response includes persistent, cross-reactive, proatherogenic antibodies against host-derived antigens. Periodontitis may affect lipoprotein metabolism at all levels, and all lipoprotein classes are affected. Periodontitis or its bacterial signatures may be involved not only in increased storage of proatherogenic lipids but also in attenuation of the anti-atherogenic processes, thereby putatively increasing the net risk of atherosclerosis. In this review we summarize possible molecular mediators between the dysbiotic oral microbiota and atherosclerotic processes.
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Affiliation(s)
- Milla Pietiäinen
- Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - John M Liljestrand
- Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Elisa Kopra
- Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pirkko J Pussinen
- Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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18
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Poteryaeva ON, Usynin IF. [Antidiabetic role of high density lipoproteins]. BIOMEDIT︠S︡INSKAI︠A︡ KHIMII︠A︡ 2019; 64:463-471. [PMID: 30632974 DOI: 10.18097/pbmc20186406463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Disturbance in lipid metabolism can be both a cause and a consequence of the development of diabetes mellitus (DM). One of the most informative indicator of lipid metabolism is the ratio of atherogenic and antiatherogenic fractions of lipoproteins and their protein components. The review summarizes literature data and own results indicating the important role of high-density lipoprotein (HDL) and their main protein component, apolipoprotein A-I (apoA-I), in the pathogenesis of type 2 DM. On the one hand, HDL are involved in the regulation of insulin secretion by b-cells and insulin-independent absorption of glucose. On the other hand, insulin resistance and hyperglycemia lead to a decrease in HDL levels and cause modification of their protein component. In addition, HDL, possessing anti-inflammatory and mitogenic properties, provide anti-diabetic protection through systemic mechanisms. Thus, maintaining a high concentration of HDL and apoA-I in blood plasma and preventing their modification are important issues in the context of prevention and treatment of diabetes.
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Affiliation(s)
- O N Poteryaeva
- Institute of Biochemistry, Federal Research Center of Fundamental and Translation Medicine, Novosibirsk, Russia
| | - I F Usynin
- Institute of Biochemistry, Federal Research Center of Fundamental and Translation Medicine, Novosibirsk, Russia
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19
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Qiu J, Zhou H, Jing Y, Dong C. Association between blood microbiome and type 2 diabetes mellitus: A nested case-control study. J Clin Lab Anal 2019; 33:e22842. [PMID: 30714640 PMCID: PMC6528574 DOI: 10.1002/jcla.22842] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/05/2018] [Accepted: 12/11/2018] [Indexed: 12/13/2022] Open
Abstract
Background Although recent studies have indicated that gut microbiome dysbiosis was significantly associated with the onset of type 2 diabetes mellitus (T2DM), information on the role of blood microbiome in T2DM development is scarce. Methods Fifty incident T2DM cases and 100 matched non‐T2DM controls were selected from a prospective cohort study of “135.” The composition of the blood microbiome was characterized using bacterial 16S ribosomal RNA (16S rRNA) gene sequencing from pre‐diagnostic blood sample. The amplicons were normalized, pooled, and sequenced on the Illumina MiSeq instrument using a MiSeq Reagent Kit PE300 v3 kit. Results Totally, 3 000 391 and 6 244 227 high‐quality sequences were obtained from T2DM patients and non‐T2DM controls, respectively. The mean diversity of the blood microbiome (Simpson, Chao1 and Shannon indices) was not different between two groups at baseline. At genus level, the Aquabacterium, Xanthomonas, and Pseudonocardia were presented with lower abundance, while Actinotalea, Alishewanella, Sediminibacterium, and Pseudoclavibacter were presented with higher abundance among T2DM cases compared to those in non‐T2DM controls. As the results shown, participants carried the genus Bacteroides in blood were significantly associated with a decreased risk for T2DM development, with 74% vs 88% (adjusted OR: 0.367, 95% CI: 0.151‐0.894). However, participants carried the genus Sediminibacterium have an increased risk for T2DM, with adjusted OR (95% CI) being 14.098 (1.358, 146.330). Conclusions Blood microbiome may play an etiology role in the development of T2DM. These findings would be useful to develop microbiota‐based strategies for T2DM prevention and control.
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Affiliation(s)
- Jing Qiu
- Department of Epidemiology and Statistics, School of Public Health, Jiangsu Key Laboratory and Translational Medicine for Geriatric Disease, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Hui Zhou
- Suzhou Industrial Park Centers for Disease Control and Prevention, Suzhou, China
| | - Yang Jing
- Department of Epidemiology and Statistics, School of Public Health, Jiangsu Key Laboratory and Translational Medicine for Geriatric Disease, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Chen Dong
- Department of Epidemiology and Statistics, School of Public Health, Jiangsu Key Laboratory and Translational Medicine for Geriatric Disease, Medical College of Soochow University, Suzhou, Jiangsu, China
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20
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Zhang-Sun W, Tercé F, Burcelin R, Novikov A, Serino M, Caroff M. Structure function relationships in three lipids A from the Ralstonia genus rising in obese patients. Biochimie 2019; 159:72-80. [PMID: 30703476 DOI: 10.1016/j.biochi.2019.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/22/2019] [Indexed: 10/27/2022]
Abstract
The identification of a functional molecular moiety relating the lipopolysaccharides (LPSs) to their capacity to induce inflammation-mediated metabolic diseases needed to be performed. We previously described a proportional increase in the relative abundance of the 16 SrDNA bacterial gene from the genus Ralstonia, within the microbiota from the adipose tissue stroma vascular fraction of obese patients, suggesting a causal role of the bacteria. Therefore, we first characterized the structures of the lipids A, the inflammatory inducing moieties of LPSs, of three Ralstonia species: Ralstonia eutropha, R. mannitolilytica and R. pickettii, and then compared each, in terms of in vitro inflammatory capacities. R. pickettii lipid A displaying only 5 Fatty Acids (FA) was a weaker inducer of inflammation, compared to the two other species harboring hexa-acylated lipids A, despite the presence of 2 AraN substituents on the phosphate groups. With regard to in vitro pro-inflammatory activities, TNF-α and IL-6 inducing capacities were compared on THP-1 cells treated with LPSs isolated from the three Ralstonia. R. pickettii, with low inflammatory capacities, and recently involved in nosocomial outcomes, could explain the low inflammatory level reported in previous studies on diabetic patients and animals. In addition, transmission electron microscopy was performed on the three Ralstonia species. It showed that the R. pickettii under-acylated LPSs, with a higher level of phosphate substitution had the capacity of producing more outer membrane vesicles (OMVs). The latter could facilitate transfer of LPSs to the blood and explain the increased low-grade inflammation observed in obese/diabetic patients.
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Affiliation(s)
- Wei Zhang-Sun
- I2BC, Centre National de la Recherche Scientifique, Université de Paris-Sud, Université de Paris-Saclay, Orsay, France
| | - François Tercé
- Université de Toulouse, UPS, Institut des Maladies Métaboliques et Cardiovasculaires de Rangueil I(2)MC, INSERM, Toulouse, France
| | - Remy Burcelin
- Université de Toulouse, UPS, Institut des Maladies Métaboliques et Cardiovasculaires de Rangueil I(2)MC, INSERM, Toulouse, France
| | - Alexey Novikov
- LPS-BioSciences, I2BC, Bâtiment 409, Université de Paris-Sud, Orsay, France
| | - Matteo Serino
- Université de Toulouse, UPS, Institut des Maladies Métaboliques et Cardiovasculaires de Rangueil I(2)MC, INSERM, Toulouse, France
| | - Martine Caroff
- I2BC, Centre National de la Recherche Scientifique, Université de Paris-Sud, Université de Paris-Saclay, Orsay, France; LPS-BioSciences, I2BC, Bâtiment 409, Université de Paris-Sud, Orsay, France.
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21
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Kell DB, Pretorius E. No effects without causes: the Iron Dysregulation and Dormant Microbes hypothesis for chronic, inflammatory diseases. Biol Rev Camb Philos Soc 2018; 93:1518-1557. [PMID: 29575574 PMCID: PMC6055827 DOI: 10.1111/brv.12407] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/12/2018] [Accepted: 02/15/2018] [Indexed: 12/11/2022]
Abstract
Since the successful conquest of many acute, communicable (infectious) diseases through the use of vaccines and antibiotics, the currently most prevalent diseases are chronic and progressive in nature, and are all accompanied by inflammation. These diseases include neurodegenerative (e.g. Alzheimer's, Parkinson's), vascular (e.g. atherosclerosis, pre-eclampsia, type 2 diabetes) and autoimmune (e.g. rheumatoid arthritis and multiple sclerosis) diseases that may appear to have little in common. In fact they all share significant features, in particular chronic inflammation and its attendant inflammatory cytokines. Such effects do not happen without underlying and initially 'external' causes, and it is of interest to seek these causes. Taking a systems approach, we argue that these causes include (i) stress-induced iron dysregulation, and (ii) its ability to awaken dormant, non-replicating microbes with which the host has become infected. Other external causes may be dietary. Such microbes are capable of shedding small, but functionally significant amounts of highly inflammagenic molecules such as lipopolysaccharide and lipoteichoic acid. Sequelae include significant coagulopathies, not least the recently discovered amyloidogenic clotting of blood, leading to cell death and the release of further inflammagens. The extensive evidence discussed here implies, as was found with ulcers, that almost all chronic, infectious diseases do in fact harbour a microbial component. What differs is simply the microbes and the anatomical location from and at which they exert damage. This analysis offers novel avenues for diagnosis and treatment.
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Affiliation(s)
- Douglas B. Kell
- School of ChemistryThe University of Manchester, 131 Princess StreetManchesterLancsM1 7DNU.K.
- The Manchester Institute of BiotechnologyThe University of Manchester, 131 Princess StreetManchesterLancsM1 7DNU.K.
- Department of Physiological SciencesStellenbosch University, Stellenbosch Private Bag X1Matieland7602South Africa
| | - Etheresia Pretorius
- Department of Physiological SciencesStellenbosch University, Stellenbosch Private Bag X1Matieland7602South Africa
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22
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Disruptions in gut microbial-host co-metabolism and the development of metabolic disorders. Clin Sci (Lond) 2018; 132:791-811. [PMID: 29661926 DOI: 10.1042/cs20171328] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/20/2018] [Accepted: 02/23/2018] [Indexed: 12/14/2022]
Abstract
The microbial-mammalian metabolic axis has become recognized as an important component governing the overall homeostatic balance of the mammalian host. Disruption of the state of homeostasis among the gut microbiota has been shown to be causally linked to the development of host metabolic diseases including obesity, cardiovascular, diabetes, and fatty liver disease. This disruption is often referred to as gut dysbiosis. Gut dysbiosis leads to altered metabolic products derived from the microbiota and these in turn, typically shift the homeostatic metabolic balance of the host towards a low-grade chronic inflammation, a hallmark of metabolic syndrome. The primary objective of this review is to examine and discuss some very current research that has been done to study the effect of bacterial metabolites on host metabolism, sometimes referred to as microbiota-host co-metabolism. The metabolic conditions reviewed here include obesity, a known risk factor for all of the other metabolic conditions, as well as, cardiovascular disease, diabetes and nonalcoholic fatty liver disease. Only by further understanding the cause and result of gut dysbiosis will an adequate solution be found for metabolic disease, a viewpoint shared by many.
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23
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Pretorius E, Page MJ, Engelbrecht L, Ellis GC, Kell DB. Substantial fibrin amyloidogenesis in type 2 diabetes assessed using amyloid-selective fluorescent stains. Cardiovasc Diabetol 2017; 16:141. [PMID: 29096623 PMCID: PMC5668975 DOI: 10.1186/s12933-017-0624-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 10/23/2017] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND We have previously shown that many chronic, inflammatory diseases are accompanied, and possibly partly caused or exacerbated, by various coagulopathies, manifested as anomalous clots in the form of 'dense matted deposits'. More recently, we have shown that these clots can be amyloid in nature, and that the plasma of healthy controls can be induced to form such clots by the addition of tiny amounts of bacterial lipopolysaccharide or lipoteichoic acid. Type 2 diabetes (T2D) is also accompanied by raised levels of LPS. METHODS We use superresolution and confocal microscopies to investigate the amyloid nature of clots from healthy and T2D individuals. RESULTS We show here, with the established stain thioflavin T and the novel stains Amytracker™ 480 and 680, that the clotting of plasma from type 2 diabetics is also amyloid in nature, and that this may be prevented by the addition of suitable concentrations of LPS-binding protein. CONCLUSION This implies strongly that there is indeed a microbial component to the development of type 2 diabetes, and suggests that LBP might be used as treatment for it and its sequelae.
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Affiliation(s)
- Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosh, 7602, South Africa.
| | - Martin J Page
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosh, 7602, South Africa
| | - Lize Engelbrecht
- Central Analytical Facility, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosh, 7602, South Africa
| | - Graham C Ellis
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosh, 7602, South Africa.,Synexus Helderberg Clinical Research Centre, Helderberg Synexus South Africa, 7G&H Arun Place, Somerset West, 7130, South Africa
| | - Douglas B Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosh, 7602, South Africa. .,School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess St, Manchester, M1 7DN, Lancs, UK.
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24
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Burcelin R. [Gut microbiota and immune crosstalk in metabolic disease]. Biol Aujourdhui 2017; 211:1-18. [PMID: 28682223 DOI: 10.1051/jbio/2017008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Indexed: 05/28/2023]
Abstract
The aim of the review is to discuss about the role played by the defence crosstalk between the gut microbiota and the intestinal immune system, in the development of metabolic disease focusing on obesity and diabetes. Starting from physiological and pathological stand points and based on the latest published data, this review is addressing how the concept of the hologenome theory of evolution can drive the fate of metabolic disease. The notion of "metabolic infection" to explain the "metabolic inflammation" is discussed. This imply comments about the process of bacterial translocation and impaired intestinal immune defense against commensals. Eventually this review sets the soil for personalized medicine. The monthly increase in the number of publications on the gut microbiota to intestinal immune defense and the control of metabolism demonstrate the importance of this field of investigation. The notion of commensal as "self or non-self" has to be reevaluated in the light of the current data. Furthermore, data demonstrate the major role played by short chain fatty acids, secondary bile acids, LPS, peptidoglycans, indole derivatives, and other bacteria-related molecules on the shaping of cells involved in the intestinal protection against commensals is now becoming a central player in the incidence of metabolic diseases. The literature demonstrates that the onset of metabolic diseases and some specific co-morbidities can be explained by a gut microbiota to intestinal immune system crosstalk. Therefore, one should now consider this avenue of investigation as a putative source of biomarkers and therapeutic targets to personalize the treatment of metabolic disease and its co-morbidities. Gut microbiota is considered as a major regulator of metabolic disease. This reconciles the notion of metabolic inflammation and the epidemic development of the disease. In addition to evidence showing that a specific gut microbiota characterizes patients with obesity, type 2 diabetes, and hepatic steatosis, the mechanisms causal to the disease could be related to the translocation of microbiota from the gut to the tissues, which induces inflammation. The mechanisms regulating such a process are based on the crosstalk between the gut microbiota and the host immune system. The hologenome theory of evolution supports this concept and implies that therapeutic strategies aiming to control glycemia should take into account both the gut microbiota and the host immune system. This review discusses the latest evidence regarding the bidirectional impact of the gut microbiota on host immune system crosstalk for the control of metabolic disease, hyperglycemia, and obesity. To avoid redundancies with the literature, we will focus our attention on the intestinal immune system, identifying evidence for the generation of novel therapeutic strategies, which could be based on the control of the translocation of gut bacteria to tissues. Such novel strategies should hamper the role played by gut microbiota dysbiosis on the development of metabolic inflammation. Recent evidence in rodents allows us to conclude that an impaired intestinal immune system characterizes and could be causal in the development of metabolic disease. The fine understanding of the molecular mechanisms should allow for the development of a first line of treatment for metabolic disease and its co-morbidities.
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Affiliation(s)
- Rémy Burcelin
- Institut National de la Santé et de la Recherche Médicale (INSERM), 31024 Toulouse, France - Université Paul Sabatier (UPS), Unité Mixte de Recherche (UMR) 1048, Hôpital Rangueil, 31400 Toulouse, France - Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), 31432 Toulouse Cedex 4, France
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25
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Vors C, Drai J, Pineau G, Laville M, Vidal H, Laugerette F, Michalski MC. Emulsifying dietary fat modulates postprandial endotoxemia associated with chylomicronemia in obese men: a pilot randomized crossover study. Lipids Health Dis 2017; 16:97. [PMID: 28545546 PMCID: PMC5445284 DOI: 10.1186/s12944-017-0486-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/15/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Postprandial hyperlipemia is recognized as a major cardio-metabolic risk factor, recently linked to the co-absorption of pro-inflammatory lipopolysaccharides with dietary lipids. This causes endotoxemia that is involved in the pathophysiology of obesity and insulin resistance, but to date the impact of food formulation is unknown. We tested a novel concept that endotoxin absorption can be modulated by fat emulsified structure in the meal, and potentially differently in obese vs. lean men. METHODS In a randomized controlled crossover study, eight normal-weight and eight obese age-matched healthy men ingested two isocaloric, isolipidic breakfasts of identical composition including 40 g of milk fat that was emulsified or unemulsified. Plasma- and chylomicron-endotoxemia and chylomicron-triglycerides were measured during 8 h after breakfast ingestion. RESULTS After emulsion consumption, parallel to an enhanced chylomicronemia, obese subjects presented an early and sharp increase in chylomicron-endotoxemia at 60 min (P time = 0.02), which was higher than (i) after spread fat in obese subjects (P < 0.05) and (ii) after both spread and emulsified fat in normal-weight subjects (P < 0.05). However in obese subjects, the iAUC of plasma endotoxemia over 8 h was lower after emulsion than after spread fat (P < 0.05) whereas in NW subjects such reduction of plasma LPS-iAUC was not observed (P = 0.67). CONCLUSION This study provides initial evidence that optimizing fat structure in the meal can be part of a dietary strategy to lower the metabolic impact of postprandial endotoxemia in obese men. TRIAL REGISTRATION Registered at ClinicalTrials.gov # NCT01249378 on July 13, 2010.
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Affiliation(s)
- Cécile Vors
- Univ-Lyon, CarMeN laboratory, INRA U1397, Inserm U1060, Université Claude Bernard Lyon 1, INSA Lyon, Charles Mérieux Medical School, FR-69600, Oullins, France.,Centre de Recherche en Nutrition Humaine Rhône-Alpes (CRNH-RA) and Centre Européen pour la Nutrition et la Santé (CENS), Pierre-Bénite, France.,The present address of Cécile Vors is: Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Pavillon des Services 2440 boulevard Hochelaga, Québec, G1V 0A6, Canada
| | - Jocelyne Drai
- Univ-Lyon, CarMeN laboratory, INRA U1397, Inserm U1060, Université Claude Bernard Lyon 1, INSA Lyon, Charles Mérieux Medical School, FR-69600, Oullins, France.,Laboratoire de Biochimie, Centre Hospitalier Lyon Sud, Pierre-Bénite, France
| | - Gaëlle Pineau
- Univ-Lyon, CarMeN laboratory, INRA U1397, Inserm U1060, Université Claude Bernard Lyon 1, INSA Lyon, Charles Mérieux Medical School, FR-69600, Oullins, France
| | - Martine Laville
- Univ-Lyon, CarMeN laboratory, INRA U1397, Inserm U1060, Université Claude Bernard Lyon 1, INSA Lyon, Charles Mérieux Medical School, FR-69600, Oullins, France.,Centre de Recherche en Nutrition Humaine Rhône-Alpes (CRNH-RA) and Centre Européen pour la Nutrition et la Santé (CENS), Pierre-Bénite, France
| | - Hubert Vidal
- Univ-Lyon, CarMeN laboratory, INRA U1397, Inserm U1060, Université Claude Bernard Lyon 1, INSA Lyon, Charles Mérieux Medical School, FR-69600, Oullins, France.,Centre de Recherche en Nutrition Humaine Rhône-Alpes (CRNH-RA) and Centre Européen pour la Nutrition et la Santé (CENS), Pierre-Bénite, France
| | - Fabienne Laugerette
- Univ-Lyon, CarMeN laboratory, INRA U1397, Inserm U1060, Université Claude Bernard Lyon 1, INSA Lyon, Charles Mérieux Medical School, FR-69600, Oullins, France
| | - Marie-Caroline Michalski
- Univ-Lyon, CarMeN laboratory, INRA U1397, Inserm U1060, Université Claude Bernard Lyon 1, INSA Lyon, Charles Mérieux Medical School, FR-69600, Oullins, France. .,Centre de Recherche en Nutrition Humaine Rhône-Alpes (CRNH-RA) and Centre Européen pour la Nutrition et la Santé (CENS), Pierre-Bénite, France.
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26
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Gomes JMG, Costa JDA, Alfenas RDCG. Metabolic endotoxemia and diabetes mellitus: A systematic review. Metabolism 2017; 68:133-144. [PMID: 28183445 DOI: 10.1016/j.metabol.2016.12.009] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/25/2016] [Accepted: 12/09/2016] [Indexed: 12/13/2022]
Abstract
In this systematic review we analyzed studies that assessed serum concentrations of lipopolysaccharide (LPS) and/or lipopolysacharide-binding protein (LBP) in diabetic patients compared with healthy people. Articles were selected using PubMed and Scopus. Search terms used were endotoxemia, endotoxins, LPS, LBP, diabetes mellitus (DM), type 1 (T1DM), type 2 (T2DM), insulin resistance, humans, epidemiologic studies, population-based, survey, representative, cross-sectional, case-control studies, observational, and clinical trials. Two authors independently extracted articles using predefined data fields, including study quality indicators. There was a great variability in the estimates of metabolic endotoxemia among the studies. Most of the studies observed higher LPS or LBP concentrations in diabetic subjects than in healthy controls. T1DM and T2DM subjects presented higher mean fasting LPS of 235.7% and 66.4% compared with non-diabetic subjects, respectively. Advanced complications (e.g. macroalbuminuria) and disease onset exacerbate endotoxemia. Antidiabetic medications decrease fasting LPS concentrations. Among these medications, rosiglitazone and insulin present higher and lower effects, respectively, compared with other treatments. T1DM and T2DM seem to increase metabolic endotoxemia. However, some confounders such as diet, age, medication, smoking and obesity influence both diabetes and endotoxemia manifestation. A better understanding of the interaction of these factors is still needed.
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Affiliation(s)
- Júnia Maria Geraldo Gomes
- Instituto Federal do Sudeste de Minas Gerais, Campus Barbacena, Rua Monsenhor José Augusto, 204, Bairro São José, Barbacena, Minas Gerais, Brazil. CEP 36205-018.
| | - Jorge de Assis Costa
- Nutrition and Health Department, Federal University of Viçosa (Universidade Federal de Viçosa), Avenida PH Rolfs, s/n, Viçosa, Minas Gerais, Brazil. CEP 36570-000
| | - Rita de Cássia Gonçalves Alfenas
- Nutrition and Health Department, Federal University of Viçosa (Universidade Federal de Viçosa), Avenida PH Rolfs, s/n, Viçosa, Minas Gerais, Brazil. CEP 36570-000
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27
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Burcelin R, Nicolas S, Blasco-Baque V. Microbiotes et maladies métaboliques. Med Sci (Paris) 2016; 32:952-960. [DOI: 10.1051/medsci/20163211010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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28
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Burcelin R. Gut microbiota and immune crosstalk in metabolic disease. Mol Metab 2016; 5:771-81. [PMID: 27617200 PMCID: PMC5004167 DOI: 10.1016/j.molmet.2016.05.016] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 05/24/2016] [Accepted: 05/31/2016] [Indexed: 12/29/2022] Open
Abstract
Background Gut microbiota is considered as a major regulator of metabolic disease. This reconciles the notion of metabolic inflammation and the epidemic development of the disease. In addition to evidence showing that a specific gut microbiota characterizes patients with obesity, type 2 diabetes, and hepatic steatosis, the mechanisms causal to the disease could be related to the translocation of microbiota from the gut to the tissues, inducing inflammation. The mechanisms regulating such a process are based on the crosstalk between the gut microbiota and the host immune system. The hologenome theory of evolution supports this concept and implies that therapeutic strategies aiming to control glycemia should take into account both the gut microbiota and the host immune system. Scope of review This review discusses the latest evidence regarding the bidirectional impact of the gut microbiota on host immune system crosstalk for the control of metabolic disease, hyperglycemia, and obesity. To avoid redundancies with the literature, we will focus our attention on the intestinal immune system, identifying evidence for the generation of novel therapeutic strategies, which could be based on the control of the translocation of gut bacteria to tissues. Such novel strategies should hamper the role played by gut microbiota dysbiosis on the development of metabolic inflammation. Major conclusions Recent evidence in rodents allows us to conclude that an impaired intestinal immune system characterizes and could be causal in the development of metabolic disease. The fine understanding of the molecular mechanisms should allow for the development of a first line of treatment for metabolic disease and its co-morbidities. This article is part of a special issue on microbiota.
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Affiliation(s)
- Rémy Burcelin
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier (UPS), Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), F-31432 Toulouse Cedex 4, France
- Inserm 1048, Hôpital Rangueil, 31400 Toulouse, France. Tel.: +33 561 32 56 14; fax: +33 561 32 56 21.Inserm 1048Hôpital RangueilToulouse31400France
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Boulangé CL, Neves AL, Chilloux J, Nicholson JK, Dumas ME. Impact of the gut microbiota on inflammation, obesity, and metabolic disease. Genome Med 2016; 8:42. [PMID: 27098727 PMCID: PMC4839080 DOI: 10.1186/s13073-016-0303-2] [Citation(s) in RCA: 874] [Impact Index Per Article: 109.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The human gut harbors more than 100 trillion microbial cells, which have an essential role in human metabolic regulation via their symbiotic interactions with the host. Altered gut microbial ecosystems have been associated with increased metabolic and immune disorders in animals and humans. Molecular interactions linking the gut microbiota with host energy metabolism, lipid accumulation, and immunity have also been identified. However, the exact mechanisms that link specific variations in the composition of the gut microbiota with the development of obesity and metabolic diseases in humans remain obscure owing to the complex etiology of these pathologies. In this review, we discuss current knowledge about the mechanistic interactions between the gut microbiota, host energy metabolism, and the host immune system in the context of obesity and metabolic disease, with a focus on the importance of the axis that links gut microbes and host metabolic inflammation. Finally, we discuss therapeutic approaches aimed at reshaping the gut microbial ecosystem to regulate obesity and related pathologies, as well as the challenges that remain in this area.
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Affiliation(s)
- Claire L Boulangé
- Metabometrix Ltd, Bio-incubator, Prince Consort Road, South Kensington, London, SW7 2BP, UK
| | - Ana Luisa Neves
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, Exhibition Road, South Kensington, London, SW7 2PH, UK
| | - Julien Chilloux
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, Exhibition Road, South Kensington, London, SW7 2PH, UK
| | - Jeremy K Nicholson
- Metabometrix Ltd, Bio-incubator, Prince Consort Road, South Kensington, London, SW7 2BP, UK. .,Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, Exhibition Road, South Kensington, London, SW7 2PH, UK.
| | - Marc-Emmanuel Dumas
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, Exhibition Road, South Kensington, London, SW7 2PH, UK.
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Pais de Barros JP, Gautier T, Sali W, Adrie C, Choubley H, Charron E, Lalande C, Le Guern N, Deckert V, Monchi M, Quenot JP, Lagrost L. Quantitative lipopolysaccharide analysis using HPLC/MS/MS and its combination with the limulus amebocyte lysate assay. J Lipid Res 2015; 56:1363-9. [PMID: 26023073 DOI: 10.1194/jlr.d059725] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Indexed: 01/22/2023] Open
Abstract
Quantitation of plasma lipopolysaccharides (LPSs) might be used to document Gram-negative bacterial infection. In the present work, LPS-derived 3-hydroxymyristate was extracted from plasma samples with an organic solvent, separated by reversed phase HPLC, and quantitated by MS/MS. This mass assay was combined with the limulus amebocyte lysate (LAL) bioassay to monitor neutralization of LPS activity in biological samples. The described HPLC/MS/MS method is a reliable, practical, accurate, and sensitive tool to quantitate LPS. The combination of the LAL and HPLC/MS/MS analyses provided new evidence for the intrinsic capacity of plasma lipoproteins and phospholipid transfer protein to neutralize the activity of LPS. In a subset of patients with systemic inflammatory response syndrome, with documented infection but with a negative plasma LAL test, significant amounts of LPS were measured by the HPLC/MS/MS method. Patients with the highest plasma LPS concentration were more severely ill. HPLC/MS/MS is a relevant method to quantitate endotoxin in a sample, to assess the efficacy of LPS neutralization, and to evaluate the proinflammatory potential of LPS in vivo.
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Affiliation(s)
- Jean-Paul Pais de Barros
- INSERM, LNC UMR866, F-21000 Dijon, France LNC UMR866, University Bourgogne Franche-Comté, F-21000 Dijon, France LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Thomas Gautier
- INSERM, LNC UMR866, F-21000 Dijon, France LNC UMR866, University Bourgogne Franche-Comté, F-21000 Dijon, France LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Wahib Sali
- INSERM, LNC UMR866, F-21000 Dijon, France LNC UMR866, University Bourgogne Franche-Comté, F-21000 Dijon, France LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Christophe Adrie
- Physiology Department, Cochin Hospital, Paris University, Paris, France
| | - Hélène Choubley
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Emilie Charron
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Caroline Lalande
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Naig Le Guern
- INSERM, LNC UMR866, F-21000 Dijon, France LNC UMR866, University Bourgogne Franche-Comté, F-21000 Dijon, France LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Valérie Deckert
- INSERM, LNC UMR866, F-21000 Dijon, France LNC UMR866, University Bourgogne Franche-Comté, F-21000 Dijon, France LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France
| | - Mehran Monchi
- Intensive Care Unit, Melun General Hospital, Melun, France
| | - Jean-Pierre Quenot
- INSERM, LNC UMR866, F-21000 Dijon, France LNC UMR866, University Bourgogne Franche-Comté, F-21000 Dijon, France LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France Intensive Care Unit University Hospital of Dijon, F-21000 Dijon, France
| | - Laurent Lagrost
- INSERM, LNC UMR866, F-21000 Dijon, France LNC UMR866, University Bourgogne Franche-Comté, F-21000 Dijon, France LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, F-21000 Dijon, France Clinical Research Department, University Hospital of Dijon, F-21000 Dijon, France
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