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O'Sullivan E, Lavelle A. Effect of anterior quadratus lumborum block on morphine consumption in minimally invasive colorectal surgery. Anaesthesia 2024; 79:556-557. [PMID: 38198509 DOI: 10.1111/anae.16234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Affiliation(s)
| | - A Lavelle
- St. James's Hospital, Dublin, Ireland
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2
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Nicolas S, Dohm-Hansen S, Lavelle A, Bastiaanssen TFS, English JA, Cryan JF, Nolan YM. Exercise mitigates a gut microbiota-mediated reduction in adult hippocampal neurogenesis and associated behaviours in rats. Transl Psychiatry 2024; 14:195. [PMID: 38658547 PMCID: PMC11043361 DOI: 10.1038/s41398-024-02904-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/26/2024] Open
Abstract
Lifestyle factors, especially exercise, impact the manifestation and progression of psychiatric and neurodegenerative disorders such as depression and Alzheimer's disease, mediated by changes in hippocampal neuroplasticity. The beneficial effects of exercise may be due to its promotion of adult hippocampal neurogenesis (AHN). Gut microbiota has also been showed to be altered in a variety of brain disorders, and disturbances of the microbiota have resulted in alterations in brain and behaviour. However, whether exercise can counteract the negative effects of altered gut microbiota on brain function remains under explored. To this end, chronic disruption of the gut microbiota was achieved using an antibiotic cocktail in rats that were sedentary or allowed voluntary access to running wheels. Sedentary rats with disrupted microbiota displayed impaired performance in hippocampal neurogenesis-dependent tasks: the modified spontaneous location recognition task and the novelty suppressed feeding test. Performance in the elevated plus maze was also impaired due to antibiotics treatment. These behaviours, and an antibiotics-induced reduction in AHN were attenuated by voluntary exercise. The effects were independent of changes in the hippocampal metabolome but were paralleled by caecal metabolomic changes. Taken together these data highlight the importance of the gut microbiota in AHN-dependent behaviours and demonstrate the power of lifestyle factors such as voluntary exercise to attenuate these changes.
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Affiliation(s)
- Sarah Nicolas
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Sebastian Dohm-Hansen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Aonghus Lavelle
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Jane A English
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- INFANT Research Centre, Cork University Hospital, Wilton, Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
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3
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Danne C, Lamas B, Lavelle A, Michel ML, Da Costa G, Pham HP, Lefevre A, Bridonneau C, Bredon M, Planchais J, Straube M, Emond P, Langella P, Sokol H. Dissecting the respective roles of microbiota and host genetics in the susceptibility of Card9 -/- mice to colitis. Microbiome 2024; 12:76. [PMID: 38649950 PMCID: PMC11036619 DOI: 10.1186/s40168-024-01798-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/22/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND The etiology of inflammatory bowel disease (IBD) is unclear but involves both genetics and environmental factors, including the gut microbiota. Indeed, exacerbated activation of the gastrointestinal immune system toward the gut microbiota occurs in genetically susceptible hosts and under the influence of the environment. For instance, a majority of IBD susceptibility loci lie within genes involved in immune responses, such as caspase recruitment domain member 9 (Card9). However, the relative impacts of genotype versus microbiota on colitis susceptibility in the context of CARD9 deficiency remain unknown. RESULTS Card9 gene directly contributes to recovery from dextran sodium sulfate (DSS)-induced colitis by inducing the colonic expression of the cytokine IL-22 and the antimicrobial peptides Reg3β and Reg3γ independently of the microbiota. On the other hand, Card9 is required for regulating the microbiota capacity to produce AhR ligands, which leads to the production of IL-22 in the colon, promoting recovery after colitis. In addition, cross-fostering experiments showed that 5 weeks after weaning, the microbiota transmitted from the nursing mother before weaning had a stronger impact on the tryptophan metabolism of the pups than the pups' own genotype. CONCLUSIONS These results show the role of CARD9 and its effector IL-22 in mediating recovery from DSS-induced colitis in both microbiota-independent and microbiota-dependent manners. Card9 genotype modulates the microbiota metabolic capacity to produce AhR ligands, but this effect can be overridden by the implantation of a WT or "healthy" microbiota before weaning. It highlights the importance of the weaning reaction occurring between the immune system and microbiota for host metabolism and immune functions throughout life. A better understanding of the impact of genetics on microbiota metabolism is key to developing efficient therapeutic strategies for patients suffering from complex inflammatory disorders. Video Abstract.
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Affiliation(s)
- C Danne
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France.
- Gastroenterology Department, INSERM, AP-HP, Saint Antoine Hospital, Centre de Recherche Saint-Antoine (CRSA), Sorbonne Université, 75012, Paris, France.
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France.
| | - B Lamas
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France
- Gastroenterology Department, INSERM, AP-HP, Saint Antoine Hospital, Centre de Recherche Saint-Antoine (CRSA), Sorbonne Université, 75012, Paris, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | - A Lavelle
- APC Microbiome Ireland and Department of Anatomy & Neuroscience, University College Cork, Cork, Ireland
| | - M-L Michel
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | - G Da Costa
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | | | - A Lefevre
- UMR 1253, Inserm, iBrain, Université de Tours, Tours, France
- PST Analyses Des Systèmes Biologiques, Département Analyses Chimique Et Métabolomique, Université de Tours, Tours, France
| | - C Bridonneau
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | - M Bredon
- Gastroenterology Department, INSERM, AP-HP, Saint Antoine Hospital, Centre de Recherche Saint-Antoine (CRSA), Sorbonne Université, 75012, Paris, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | - J Planchais
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | - M Straube
- Gastroenterology Department, INSERM, AP-HP, Saint Antoine Hospital, Centre de Recherche Saint-Antoine (CRSA), Sorbonne Université, 75012, Paris, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | - P Emond
- UMR 1253, Inserm, iBrain, Université de Tours, Tours, France
- PST Analyses Des Systèmes Biologiques, Département Analyses Chimique Et Métabolomique, Université de Tours, Tours, France
- Serv Med Nucl in Vitro, CHRU Tours, Tours, France
| | - P Langella
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France
| | - H Sokol
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78352, Jouy-en-Josas, France.
- Gastroenterology Department, INSERM, AP-HP, Saint Antoine Hospital, Centre de Recherche Saint-Antoine (CRSA), Sorbonne Université, 75012, Paris, France.
- Paris Center for Microbiome Medicine, Fédération Hospitalo-Universitaire, 75012, Paris, France.
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4
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Dohm-Hansen S, English JA, Lavelle A, Fitzsimons CP, Lucassen PJ, Nolan YM. The 'middle-aging' brain. Trends Neurosci 2024; 47:259-272. [PMID: 38508906 DOI: 10.1016/j.tins.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/09/2024] [Accepted: 02/05/2024] [Indexed: 03/22/2024]
Abstract
Middle age has historically been an understudied period of life compared to older age, when cognitive and brain health decline are most pronounced, but the scope for intervention may be limited. However, recent research suggests that middle age could mark a shift in brain aging. We review emerging evidence on multiple levels of analysis indicating that midlife is a period defined by unique central and peripheral processes that shape future cognitive trajectories and brain health. Informed by recent developments in aging research and lifespan studies in humans and animal models, we highlight the utility of modeling non-linear changes in study samples with wide subject age ranges to distinguish life stage-specific processes from those acting linearly throughout the lifespan.
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Affiliation(s)
- Sebastian Dohm-Hansen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; INFANT Research Centre, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Jane A English
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; INFANT Research Centre, University College Cork, Cork, Ireland
| | - Aonghus Lavelle
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Carlos P Fitzsimons
- Swammerdam Institute for Life Sciences, Brain Plasticity Group, University of Amsterdam, Amsterdam, The Netherlands
| | - Paul J Lucassen
- Swammerdam Institute for Life Sciences, Brain Plasticity Group, University of Amsterdam, Amsterdam, The Netherlands
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland.
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Lachmansingh DA, Valderrama B, Bastiaanssen T, Cryan J, Clarke G, Lavelle A. Impact of dietary fiber on gut microbiota composition, function and gut-brain-modules in healthy adults - a systematic review protocol. HRB Open Res 2024; 6:62. [PMID: 38525261 PMCID: PMC10958149 DOI: 10.12688/hrbopenres.13794.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2024] [Indexed: 03/26/2024] Open
Abstract
Background The gut microbiota has been extensively implicated in health and disease. The functional outputs of the gut microbiota, such as microbial metabolites, are considered particularly important in this regard. Significant associations exist between alterations in the relative abundance of specific microbial taxa and mental health disorders. Dietary fiber has the potential to alter gut microbiota composition and function, modifying bacterial enzymatic function and the production of metabolites. As many taxa of microorganisms have enzymes capable of producing or degrading neurochemicals i.e. neuroactive gut brain modules, new predictive tools can be applied to existing datasets such as those harvested from dietary fiber interventions. We endeavor to perform a systematic review in order to identify studies reporting compositional gut microbiota alterations after interventions with dietary fiber in healthy individuals. We aim to also extract from the selected studies publicly available microbial genomic sequence datasets for reanalysis with a consistent bioinformatics pipeline, with the ultimate intention of identifying altered gut brain modules following dietary fiber interventions. Methods Interventional trials and randomized controlled studies that are originally published, including cross-over and non-crossover design and involving healthy adult humans will be included. A systematic search of PubMed/MEDLINE and EMBASE, two electronic databases, will be completed. Discussion Various types of dietary fiber have an impact on the gut microbiota composition, with some promoting the growth of particular taxa while others are reduced in relative abundance. Our search focuses on the impact of this food component on the microbiota of healthy individuals. Compositional gut microbial changes have been reported and our review will compile and update these observations after reanalysis of their datasets with a consistent bioinformatic pipeline. From this it may be possible to predict more detailed functional consequences in terms of neuroactive gut brain modules, of the compositional alterations in gut microbial taxa.
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Affiliation(s)
- David Antoine Lachmansingh
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, County Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, County Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, County Cork, Ireland
| | - Benjamin Valderrama
- APC Microbiome Ireland, University College Cork, Cork, County Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, County Cork, Ireland
| | - Thomaz Bastiaanssen
- APC Microbiome Ireland, University College Cork, Cork, County Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, County Cork, Ireland
| | - John Cryan
- APC Microbiome Ireland, University College Cork, Cork, County Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, County Cork, Ireland
| | - Gerard Clarke
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, County Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, County Cork, Ireland
| | - Aonghus Lavelle
- APC Microbiome Ireland, University College Cork, Cork, County Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, County Cork, Ireland
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6
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Ross FC, Mayer DE, Gupta A, Gill CIR, Del Rio D, Cryan JF, Lavelle A, Ross RP, Stanton C, Mayer EA. Existing and Future Strategies to Manipulate the Gut Microbiota With Diet as a Potential Adjuvant Treatment for Psychiatric Disorders. Biol Psychiatry 2024; 95:348-360. [PMID: 37918459 DOI: 10.1016/j.biopsych.2023.10.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 09/20/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023]
Abstract
Nutrition and diet quality play key roles in preventing and slowing cognitive decline and have been linked to multiple brain disorders. This review compiles available evidence from preclinical studies and clinical trials on the impact of nutrition and interventions regarding major psychiatric conditions and some neurological disorders. We emphasize the potential role of diet-related microbiome alterations in these effects and highlight commonalities between various brain disorders related to the microbiome. Despite numerous studies shedding light on these findings, there are still gaps in our understanding due to the limited availability of definitive human trial data firmly establishing a causal link between a specific diet and microbially mediated brain functions and symptoms. The positive impact of certain diets on the microbiome and cognitive function is frequently ascribed with the anti-inflammatory effects of certain microbial metabolites or a reduction of proinflammatory microbial products. We also critically review recent research on pro- and prebiotics and nondietary interventions, particularly fecal microbiota transplantation. The recent focus on diet in relation to brain disorders could lead to improved treatment outcomes with combined dietary, pharmacological, and behavioral interventions.
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Affiliation(s)
- Fiona C Ross
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Dylan E Mayer
- Institute of Human Nutrition, Columbia University, New York, New York
| | - Arpana Gupta
- Goodman-Luskin Microbiome Center, G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Chris I R Gill
- Nutrition Innovation Centre for Food and Health, Ulster University, Coleraine, United Kingdom
| | - Daniele Del Rio
- Department of Food and Drugs, University of Parma, Parma, Italy
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Aonghus Lavelle
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - R Paul Ross
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Catherine Stanton
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Teagasc Moorepark Food Research Centre, Fermoy, Cork, Ireland.
| | - Emeran A Mayer
- Goodman-Luskin Microbiome Center, G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
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7
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Grabrucker S, Marizzoni M, Silajdžić E, Lopizzo N, Mombelli E, Nicolas S, Dohm-Hansen S, Scassellati C, Moretti DV, Rosa M, Hoffmann K, Cryan JF, O’Leary OF, English JA, Lavelle A, O’Neill C, Thuret S, Cattaneo A, Nolan YM. Microbiota from Alzheimer's patients induce deficits in cognition and hippocampal neurogenesis. Brain 2023; 146:4916-4934. [PMID: 37849234 PMCID: PMC10689930 DOI: 10.1093/brain/awad303] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 07/29/2023] [Accepted: 08/19/2023] [Indexed: 10/19/2023] Open
Abstract
Alzheimer's disease is a complex neurodegenerative disorder leading to a decline in cognitive function and mental health. Recent research has positioned the gut microbiota as an important susceptibility factor in Alzheimer's disease by showing specific alterations in the gut microbiome composition of Alzheimer's patients and in rodent models. However, it is unknown whether gut microbiota alterations are causal in the manifestation of Alzheimer's symptoms. To understand the involvement of Alzheimer's patient gut microbiota in host physiology and behaviour, we transplanted faecal microbiota from Alzheimer's patients and age-matched healthy controls into microbiota-depleted young adult rats. We found impairments in behaviours reliant on adult hippocampal neurogenesis, an essential process for certain memory functions and mood, resulting from Alzheimer's patient transplants. Notably, the severity of impairments correlated with clinical cognitive scores in donor patients. Discrete changes in the rat caecal and hippocampal metabolome were also evident. As hippocampal neurogenesis cannot be measured in living humans but is modulated by the circulatory systemic environment, we assessed the impact of the Alzheimer's systemic environment on proxy neurogenesis readouts. Serum from Alzheimer's patients decreased neurogenesis in human cells in vitro and were associated with cognitive scores and key microbial genera. Our findings reveal for the first time, that Alzheimer's symptoms can be transferred to a healthy young organism via the gut microbiota, confirming a causal role of gut microbiota in Alzheimer's disease, and highlight hippocampal neurogenesis as a converging central cellular process regulating systemic circulatory and gut-mediated factors in Alzheimer's.
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Affiliation(s)
- Stefanie Grabrucker
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- APC Microbiome Ireland, University College Cork, Ireland
| | - Moira Marizzoni
- Biological Psychiatry Unit, IRCCS Fatebenefratelli, Brescia, Italy
- Laboratory of Neuroimaging and Alzheimer’s Epidemiology, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Edina Silajdžić
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, King’s College London, SE5 9NU London, UK
| | - Nicola Lopizzo
- Biological Psychiatry Unit, IRCCS Fatebenefratelli, Brescia, Italy
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Elisa Mombelli
- Biological Psychiatry Unit, IRCCS Fatebenefratelli, Brescia, Italy
| | - Sarah Nicolas
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- APC Microbiome Ireland, University College Cork, Ireland
| | - Sebastian Dohm-Hansen
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- APC Microbiome Ireland, University College Cork, Ireland
- INFANT Research Centre, University College Cork, T12 DC4A Cork, Ireland
| | | | | | - Melissa Rosa
- Biological Psychiatry Unit, IRCCS Fatebenefratelli, Brescia, Italy
| | - Karina Hoffmann
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, King’s College London, SE5 9NU London, UK
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- APC Microbiome Ireland, University College Cork, Ireland
| | - Olivia F O’Leary
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- APC Microbiome Ireland, University College Cork, Ireland
| | - Jane A English
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- INFANT Research Centre, University College Cork, T12 DC4A Cork, Ireland
| | - Aonghus Lavelle
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- APC Microbiome Ireland, University College Cork, Ireland
| | - Cora O’Neill
- APC Microbiome Ireland, University College Cork, Ireland
- School of Biochemistry and Cell Biology, BioSciences Institute, University College Cork, T12 YT20 Cork, Ireland
| | - Sandrine Thuret
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, King’s College London, SE5 9NU London, UK
| | - Annamaria Cattaneo
- Biological Psychiatry Unit, IRCCS Fatebenefratelli, Brescia, Italy
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Ireland
- APC Microbiome Ireland, University College Cork, Ireland
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Laurans L, Mouttoulingam N, Chajadine M, Lavelle A, Diedisheim M, Bacquer E, Creusot L, Suffee N, Esposito B, Melhem NJ, Le Goff W, Haddad Y, Paul JL, Rainteau D, Tedgui A, Ait-Oufella H, Zitvogel L, Sokol H, Taleb S. An obesogenic diet increases atherosclerosis through promoting microbiota dysbiosis-induced gut lymphocyte trafficking into the periphery. Cell Rep 2023; 42:113350. [PMID: 37897726 DOI: 10.1016/j.celrep.2023.113350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/13/2023] [Accepted: 10/11/2023] [Indexed: 10/30/2023] Open
Abstract
Although high-fat diet (HFD)-induced gut microbiota dysbiosis is known to affect atherosclerosis, the underlying mechanisms remain to be fully explored. Here, we show that the progression of atherosclerosis depends on a gut microbiota shaped by an HFD but not a high-cholesterol (HC) diet and, more particularly, on low fiber (LF) intake. Mechanistically, gut lymphoid cells impacted by HFD- or LF-induced microbiota dysbiosis highly proliferate in mesenteric lymph nodes (MLNs) and migrate from MLNs to the periphery, which fuels T cell accumulation within atherosclerotic plaques. This is associated with the induction of mucosal addressin cell adhesion molecule 1 (MAdCAM-1) within plaques and the presence of enterotropic lymphocytes expressing β7 integrin. MLN resection or lymphocyte deficiency abrogates the pro-atherogenic effects of a microbiota shaped by LF. Our study shows a pathological link between a diet-shaped microbiota, gut immune cells, and atherosclerosis, suggesting that a diet-modulated microbiome might be a suitable therapeutic target to prevent atherosclerosis.
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Affiliation(s)
- Ludivine Laurans
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Nirmala Mouttoulingam
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Mouna Chajadine
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Aonghus Lavelle
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, 75012 Paris, France; Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Marc Diedisheim
- Clinique Saint Gatien Alliance (NCT+), 37540 Saint-Cyr-sur-Loire, France; Institut Necker-Enfants Malades (INEM), Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, 75015 Paris, France
| | - Emilie Bacquer
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Laura Creusot
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, 75012 Paris, France; Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Nadine Suffee
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France; INSERM UMRS1166, ICAN-Institute of Cardiometabolism and Nutrition, Sorbonne University, 75013 Paris, France
| | - Bruno Esposito
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Nada Joe Melhem
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Wilfried Le Goff
- INSERM UMRS1166, ICAN-Institute of Cardiometabolism and Nutrition, Sorbonne University, 75013 Paris, France
| | - Yacine Haddad
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France; Gustave Roussy, Villejuif, France; Institut National de la Santé et de la Recherche Médicale, Gustave Roussy, UMR1015, Villejuif, France
| | - Jean-Louis Paul
- Université Paris-Sud, Equipe d'Accueil 4529, UFR de Pharmacie, Chatenay-Malabry, France and Assistance Publique Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
| | - Dominique Rainteau
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France; Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Clinical Metabolomics Department, 75012 Paris, France
| | - Alain Tedgui
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Hafid Ait-Oufella
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France
| | - Laurence Zitvogel
- Gustave Roussy, Villejuif, France; Institut National de la Santé et de la Recherche Médicale, Gustave Roussy, UMR1015, Villejuif, France; Université Paris-Saclay, Faculté de Médecine, Le Kremlin Bicêtre, France; Center of Clinical Investigations BIOTHERIS, INSERM CIC1428, Gustave Roussy, Villejuif, France
| | - Harry Sokol
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, 75012 Paris, France; Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France; INRAe, Micalis & AgroParisTech, Jouy en Josas, France
| | - Soraya Taleb
- Université Paris Cité, INSERM, Paris Cardiovascular Research Center, 75015 Paris, France.
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9
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Lachmansingh DA, Lavelle A, Cryan JF, Clarke G. Microbiota-Gut-Brain Axis and Antidepressant Treatment. Curr Top Behav Neurosci 2023. [PMID: 37962812 DOI: 10.1007/7854_2023_449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
In the treatment of depressive disorders, conventional antidepressant therapy has been the mainstay of clinical management, along with well-established nonpharmacological interventions such as various kinds of psychotherapy. Over the last 2 decades, there has been considerable interest in the role of the gastrointestinal system and its microbiota on brain function, behavior, and mental health. Components of what is referred to as the microbiota-gut-brain axis have been uncovered, and further research has elicited functional capabilities such as "gut-brain modules." Some studies have found associations with compositional alterations of gut microbiota in patients with depressive disorders and individuals experiencing symptoms of depression. Regarding the pathogenesis and neurobiology of depression itself, there appears to be a multifactorial contribution, in addition to the theories involving deficits in catecholaminergic and monoamine neurotransmission. Interestingly, there is evidence to suggest that antidepressants may play a role in modulating the gut microbiota, thereby possibly having an impact on the microbiota-gut-brain axis in this manner. The development of prebiotics, probiotics, and synbiotics has led to studies investigating not only their impact on the microbiota but also their therapeutic value in mental health. These psychobiotics have the potential to be used as therapeutic adjuncts in the treatment of depression. Regarding future directions, and in an attempt to further understand the role of the microbiota-gut-brain axis in depression, more studies such as those involving fecal microbiota transplantation will be required. In addition to recent findings, it is also suggested that more research will have to be undertaken to elicit whether specific strains of gut organisms are linked to depression. In terms of further investigation of the therapeutic potential of prebiotics, probiotics, and synbiotics as adjuncts to antidepressant treatment, we also expect there to be more research targeting specific microorganisms, as well as a strong focus on the effects of specific prebiotic fibers from an individualized (personalized) point of view.
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Affiliation(s)
- David Antoine Lachmansingh
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Aonghus Lavelle
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
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10
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Hickey A, O'Gara Á, Lavelle A. Analgesia nociception index for intra-operative remifentanil dose and pain after gynaecological laparotomy. Anaesthesia 2023; 78:1304. [PMID: 37337463 DOI: 10.1111/anae.16065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2023] [Indexed: 06/21/2023]
Affiliation(s)
- A Hickey
- St James's Hospital, Dublin, Ireland
| | - Á O'Gara
- St James's Hospital, Dublin, Ireland
| | - A Lavelle
- St James's Hospital, Dublin, Ireland
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11
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O’Reilly C, Mills S, Rea MC, Lavelle A, Ghosh S, Hill C, Ross RP. Interplay between inflammatory bowel disease therapeutics and the gut microbiome reveals opportunities for novel treatment approaches. Microbiome Res Rep 2023; 2:35. [PMID: 37849974 PMCID: PMC7615213 DOI: 10.20517/mrr.2023.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/19/2023]
Abstract
Inflammatory bowel disease (IBD) is a complex heterogeneous disorder defined by recurring chronic inflammation of the gastrointestinal tract, attributed to a combination of factors including genetic susceptibility, altered immune response, a shift in microbial composition/microbial insults (infection/exposure), and environmental influences. Therapeutics generally used to treat IBD mainly focus on the immune response and include non-specific anti-inflammatory and immunosuppressive therapeutics and targeted therapeutics aimed at specific components of the immune system. Other therapies include exclusive enteral nutrition and emerging stem cell therapies. However, in recent years, scientists have begun to examine the interplay between these therapeutics and the gut microbiome, and we present this information here. Many of these therapeutics are associated with alterations to gut microbiome composition and functionality, often driving it toward a "healthier profile" and preclinical studies have revealed that such alterations can play an important role in therapeutic efficacy. The gut microbiome can also improve or hinder IBD therapeutic efficacy or generate undesirable metabolites. For certain IBD therapeutics, the microbiome composition, particularly before treatment, may serve as a biomarker of therapeutic efficacy. Utilising this information and manipulating the interactions between the gut microbiome and IBD therapeutics may enhance treatment outcomes in the future and bring about new opportunities for personalised, precision medicine.
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Affiliation(s)
- Catherine O’Reilly
- Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork P61C996, Ireland
- Microbiology Department, University College Cork, Co. Cork T12TP07, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
- Authors contributed equally
| | - Susan Mills
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
- Authors contributed equally
| | - Mary C. Rea
- Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork P61C996, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - Aonghus Lavelle
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - Subrata Ghosh
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - Colin Hill
- Microbiology Department, University College Cork, Co. Cork T12TP07, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - R. Paul Ross
- Microbiology Department, University College Cork, Co. Cork T12TP07, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
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12
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Zhang Y, Vandestienne M, Lavillegrand JR, Joffre J, Santos-Zas I, Lavelle A, Zhong X, Le Goff W, Guérin M, Al-Rifai R, Laurans L, Bruneval P, Guérin C, Diedisheim M, Migaud M, Puel A, Lanternier F, Casanova JL, Cochain C, Zernecke A, Saliba AE, Mokry M, Silvestre JS, Tedgui A, Mallat Z, Taleb S, Lenoir O, Vindis C, Camus SM, Sokol H, Ait-Oufella H. Genetic inhibition of CARD9 accelerates the development of atherosclerosis in mice through CD36 dependent-defective autophagy. Nat Commun 2023; 14:4622. [PMID: 37528097 PMCID: PMC10394049 DOI: 10.1038/s41467-023-40216-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 07/17/2023] [Indexed: 08/03/2023] Open
Abstract
Caspase recruitment-domain containing protein 9 (CARD9) is a key signaling pathway in macrophages but its role in atherosclerosis is still poorly understood. Global deletion of Card9 in Apoe-/- mice as well as hematopoietic deletion in Ldlr-/- mice increases atherosclerosis. The acceleration of atherosclerosis is also observed in Apoe-/-Rag2-/-Card9-/- mice, ruling out a role for the adaptive immune system in the vascular phenotype of Card9 deficient mice. Card9 deficiency alters macrophage phenotype through CD36 overexpression with increased IL-1β production, increased lipid uptake, higher cell death susceptibility and defective autophagy. Rapamycin or metformin, two autophagy inducers, abolish intracellular lipid overload, restore macrophage survival and autophagy flux in vitro and finally abolish the pro-atherogenic effects of Card9 deficiency in vivo. Transcriptomic analysis of human CARD9-deficient monocytes confirms the pathogenic signature identified in murine models. In summary, CARD9 is a key protective pathway in atherosclerosis, modulating macrophage CD36-dependent inflammatory responses, lipid uptake and autophagy.
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Affiliation(s)
- Yujiao Zhang
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Marie Vandestienne
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | | | - Jeremie Joffre
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
- Sorbonne Université, Paris, France
| | - Icia Santos-Zas
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Aonghus Lavelle
- Sorbonne Université, Paris, France
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, Paris, France
| | - Xiaodan Zhong
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Wilfried Le Goff
- Inserm UMRS1166, ICAN, Institute of CardioMetabolism and Nutrition, Hôpital Pitié-Salpêtrière (AP-HP), Paris, France
| | - Maryse Guérin
- Inserm UMRS1166, ICAN, Institute of CardioMetabolism and Nutrition, Hôpital Pitié-Salpêtrière (AP-HP), Paris, France
| | - Rida Al-Rifai
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Ludivine Laurans
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Patrick Bruneval
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
- Department of Anatomopathology, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
| | - Coralie Guérin
- Institut Curie, Cytometry Platform, 75006, Paris, France
| | - Marc Diedisheim
- Clinique Saint Gatien Alliance (NCT+), 37540 Saint-Cyr-sur-Loire, France; Institut Necker-Enfants Malades (INEM), Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, 75015, Paris, France
| | - Melanie Migaud
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Imagine Institute, 75015, Paris, France
| | - Anne Puel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Imagine Institute, 75015, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, Rockefeller University, New York, NY, USA
| | - Fanny Lanternier
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Imagine Institute, 75015, Paris, France
| | - Jean-Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Imagine Institute, 75015, Paris, France
| | - Clément Cochain
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Wuerzburg, Germany
- Institute of Experimental Biomedicine, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Alma Zernecke
- Institute of Experimental Biomedicine, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Antoine-Emmanuel Saliba
- Helmholtz Institute for RNA-based Infection Research (HIRI), Helmholtz-Center for Infection Research (HZI), Wuerzburg, Germany
| | - Michal Mokry
- Laboratory of Experimental Cardiology, Department of Cardiology, University Medical Center Utrecht, University Utrecht, Utrecht, Netherlands
| | | | - Alain Tedgui
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Ziad Mallat
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
- Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, CB2 2QQ, UK
| | - Soraya Taleb
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Olivia Lenoir
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | | | - Stéphane M Camus
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Harry Sokol
- Sorbonne Université, Paris, France
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, Paris, France
- University Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Hafid Ait-Oufella
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France.
- Sorbonne Université, Paris, France.
- Medical Intensive Care Unit, Hôpital Saint-Antoine, AP-HP, Sorbonne Université, Paris, France.
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13
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Stockdale SR, Shkoporov AN, Khokhlova EV, Daly KM, McDonnell SA, O' Regan O, Nolan JA, Sutton TDS, Clooney AG, Ryan FJ, Sheehan D, Lavelle A, Draper LA, Shanahan F, Ross RP, Hill C. Interpersonal variability of the human gut virome confounds disease signal detection in IBD. Commun Biol 2023; 6:221. [PMID: 36841913 PMCID: PMC9968284 DOI: 10.1038/s42003-023-04592-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 02/14/2023] [Indexed: 02/27/2023] Open
Abstract
Viruses are increasingly recognised as important components of the human microbiome, fulfilling numerous ecological roles including bacterial predation, immune stimulation, genetic diversification, horizontal gene transfer, microbial interactions, and augmentation of metabolic functions. However, our current view of the human gut virome is tainted by previous sequencing requirements that necessitated the amplification of starting nucleic acids. In this study, we performed an original longitudinal analysis of 40 healthy control, 19 Crohn's disease, and 20 ulcerative colitis viromes over three time points without an amplification bias, which revealed and highlighted the interpersonal individuality of the human gut virome. In contrast to a 16 S rRNA gene analysis of matched samples, we show that α- and β-diversity metrics of unamplified viromes are not as efficient at discerning controls from patients with inflammatory bowel disease. Additionally, we explored the intrinsic properties of unamplified gut viromes and show there is considerable interpersonal variability in viral taxa, infrequent longitudinal persistence of intrapersonal viruses, and vast fluctuations in the abundance of temporal viruses. Together, these properties of unamplified faecal viromes confound the ability to discern disease associations but significantly advance toward an unbiased and accurate representation of the human gut virome.
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Affiliation(s)
| | | | | | - Karen M Daly
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
| | | | - Orla O' Regan
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
| | - James A Nolan
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
| | | | - Adam G Clooney
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
| | - Feargal J Ryan
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
| | - Donal Sheehan
- Department of Medicine, University College Cork, Co, Cork, Ireland
| | - Aonghus Lavelle
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
- Department of Medicine, University College Cork, Co, Cork, Ireland
| | | | - Fergus Shanahan
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
- Department of Medicine, University College Cork, Co, Cork, Ireland
| | - R Paul Ross
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Co, Cork, Ireland.
- School of Microbiology, University College Cork, Co, Cork, Ireland.
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14
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Monaghan R, Hoey M, Lavelle A. The effect of overlapping surgical scheduling on operating theatre productivity. Anaesthesia 2023; 78:264-265. [PMID: 36256735 DOI: 10.1111/anae.15893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2022] [Indexed: 01/11/2023]
Affiliation(s)
| | - M Hoey
- Saint James's Hospital, Dublin, Ireland
| | - A Lavelle
- Saint James's Hospital, Dublin, Ireland
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15
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Lavelle A, Bonnet JF, O'Sullivan E, Sheil D, MacLoughlin R. Determining optimal gas flow rate and nebuliser position using the Aerogen ® Solo™ vibrating-mesh nebuliser. Anaesthesia 2023; 78:256-258. [PMID: 36378564 DOI: 10.1111/anae.15917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2022] [Indexed: 11/17/2022]
Affiliation(s)
- A Lavelle
- St James's Hospital, Dublin, Ireland
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16
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Murphy C, Sherwin A, Lavelle A. Autonomy vs. the environment: nitrous oxide use in obstetrics, an ongoing challenge. Anaesthesia 2023; 78:654-655. [PMID: 36715244 DOI: 10.1111/anae.15976] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 01/31/2023]
Affiliation(s)
- C Murphy
- St James's Hospital, Dublin, Ireland
| | - A Sherwin
- St James's Hospital, Dublin, Ireland
| | - A Lavelle
- St James's Hospital, Dublin, Ireland
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17
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Michaudel C, Danne C, Agus A, Magniez A, Aucouturier A, Spatz M, Lefevre A, Kirchgesner J, Rolhion N, Wang Y, Lavelle A, Galbert C, Da Costa G, Poirier M, Lapière A, Planchais J, Nádvorník P, Illes P, Oeuvray C, Creusot L, Michel ML, Benech N, Bourrier A, Nion-Larmurier I, Landman C, Richard ML, Emond P, Seksik P, Beaugerie L, Arguello RR, Moulin D, Mani S, Dvorák Z, Bermúdez-Humarán LG, Langella P, Sokol H. Rewiring the altered tryptophan metabolism as a novel therapeutic strategy in inflammatory bowel diseases. Gut 2022:gutjnl-2022-327337. [PMID: 36270778 DOI: 10.1136/gutjnl-2022-327337] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 10/06/2022] [Indexed: 11/04/2022]
Abstract
OBJECTIVE The extent to which tryptophan (Trp) metabolism alterations explain or influence the outcome of inflammatory bowel diseases (IBDs) is still unclear. However, several Trp metabolism end-products are essential to intestinal homeostasis. Here, we investigated the role of metabolites from the kynurenine pathway. DESIGN Targeted quantitative metabolomics was performed in two large human IBD cohorts (1069 patients with IBD). Dextran sodium sulphate-induced colitis experiments in mice were used to evaluate effects of identified metabolites. In vitro, ex vivo and in vivo experiments were used to decipher mechanisms involved. Effects on energy metabolism were evaluated by different methods including Single Cell mEtabolism by profiling Translation inHibition. RESULTS In mice and humans, intestinal inflammation severity negatively correlates with the amount of xanthurenic (XANA) and kynurenic (KYNA) acids. Supplementation with XANA or KYNA decreases colitis severity through effects on intestinal epithelial cells and T cells, involving Aryl hydrocarbon Receptor (AhR) activation and the rewiring of cellular energy metabolism. Furthermore, direct modulation of the endogenous tryptophan metabolism, using the recombinant enzyme aminoadipate aminotransferase (AADAT), responsible for the generation of XANA and KYNA, was protective in rodent colitis models. CONCLUSION Our study identified a new mechanism linking Trp metabolism to intestinal inflammation and IBD. Bringing back XANA and KYNA has protective effects involving AhR and the rewiring of the energy metabolism in intestinal epithelial cells and CD4+ T cells. This study paves the way for new therapeutic strategies aiming at pharmacologically correcting its alterations in IBD by manipulating the endogenous metabolic pathway with AADAT.
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Affiliation(s)
- Chloé Michaudel
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Camille Danne
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France
| | - Allison Agus
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Aurélie Magniez
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Anne Aucouturier
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Madeleine Spatz
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Antoine Lefevre
- UMR 1253, iBrain, University of Tours, Inserm, 37044 Tours, France
| | - Julien Kirchgesner
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
| | - Nathalie Rolhion
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France
| | - Yazhou Wang
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Aonghus Lavelle
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France
| | - Chloé Galbert
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France
| | - Gregory Da Costa
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Maxime Poirier
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Alexia Lapière
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Julien Planchais
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Petr Nádvorník
- Department of Cell Biology and Genetics, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Peter Illes
- Department of Cell Biology and Genetics, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Cyriane Oeuvray
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France
| | - Laura Creusot
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France
| | - Marie-Laure Michel
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Nicolas Benech
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
| | - Anne Bourrier
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
| | - Isabelle Nion-Larmurier
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
| | - Cecilia Landman
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
| | - Mathias L Richard
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Patrick Emond
- UMR 1253, iBrain, University of Tours, Inserm, 37044 Tours, France.,CHRU Tours, Medical Biology Center, Tours, France
| | - Philippe Seksik
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
| | - Laurent Beaugerie
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
| | - Rafael Rose Arguello
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - David Moulin
- CNRS, IMoPA, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Sridhar Mani
- Molecular Pharmacology, Genetics and Medicine, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Zdenek Dvorák
- Department of Cell Biology and Genetics, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Luis G Bermúdez-Humarán
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Philippe Langella
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Harry Sokol
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis institute, Jouy-en-Josas, France .,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Paris, France.,Gastroenterology department, Saint Antoine Hospital, APHP, Paris, France
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18
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Lavelle A, Nancey S, Reimund JM, Laharie D, Marteau P, Treton X, Allez M, Roblin X, Malamut G, Oeuvray C, Rolhion N, Dray X, Rainteau D, Lamaziere A, Gauliard E, Kirchgesner J, Beaugerie L, Seksik P, Peyrin-Biroulet L, Sokol H. Fecal microbiota and bile acids in IBD patients undergoing screening for colorectal cancer. Gut Microbes 2022; 14:2078620. [PMID: 35638103 PMCID: PMC9176255 DOI: 10.1080/19490976.2022.2078620] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Due to the potential role of the gut microbiota and bile acids in the pathogenesis of both inflammatory bowel disease (IBD) and sporadic colorectal cancer, we aimed to determine whether these factors were associated with colorectal cancer in IBD patients. 215 IBD patients and 51 non-IBD control subjects were enrolled from 10 French IBD centers between September 2011 and July 2018. Fecal samples were processed for bacterial 16S rRNA gene sequencing and bile acid profiling. Demographic, clinical, endoscopic, and histological outcomes were recorded. Characteristics of IBD patients included: median age: 41.6 (IQR 22); disease duration 13.2 (13.1); 47% female; 21.9% primary sclerosing cholangitis; 109 patients with Crohn's disease (CD); 106 patients with ulcerative colitis (UC). The prevalence of cancer was 2.8% (6/215: 1 CD; 5 UC), high-grade dysplasia 3.7% (8/215) and low-grade dysplasia 7.9% (17/215). Lachnospira was decreased in IBD patients with cancer, while Agathobacter was decreased and Escherichia-Shigella increased in UC patients with any neoplasia. Bile acids were not associated with cancer or neoplasia. Unsupervised clustering identified three gut microbiota clusters in IBD patients associated with bile acid composition and clinical features, including a higher risk of neoplasia in UC in two clusters when compared to the third (relative risk (RR) 4.07 (95% CI 1.6-10.3, P < .01) and 3.56 (95% CI 1.4-9.2, P < .01)). In this multicentre observational study, a limited number of taxa were associated with neoplasia and exploratory microbiota clusters co-associated with clinical features, including neoplasia risk in UC. Given the very small number of cancers, the robustness of these findings will require assessment and validation in future studies.
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Affiliation(s)
- Aonghus Lavelle
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France,APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Stéphane Nancey
- Gastroenterology Department University Claude Bernard Lyon 1Hospices Civils de Lyon, CHU Lyon-Sud, Lyon, France
| | - Jean-Marie Reimund
- Hôpital de Hautpierre, CHU de Strasbourg, Service d’Hépato-gastroentérologie et Assistance Nutritive, Strasbourg, France
| | - David Laharie
- CHU de Bordeaux, Hôpital Haut-Lévêque, Service d’Hépato-gastroentérologie et oncologie digestive – Université de Bordeaux, Bordeaux, France
| | - Philippe Marteau
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Tenon Hospital, Paris, France
| | - Xavier Treton
- Gastroentérologie, MICI et Assistance Nutritive, DMU DIGEST, hôpital Beaujon, 100 bd du général Leclerc, Clichy, France
| | - Matthieu Allez
- Department of Hepato-Gastroenterology, Hôpital Saint-Louis, Paris, France
| | - Xavier Roblin
- Gastroenterology Department, CHU de Saint-Étienne - Hôpital Bellevue, St Etienne, France
| | - Georgia Malamut
- Gastroenterology Department, Hôpital Européen Georges-Pompidou, Paris, France
| | - Cyriane Oeuvray
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Nathalie Rolhion
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Xavier Dray
- Sorbonne University, Endoscopy Unit, AP-HP, Hôpital Saint-Antoine, Paris, France
| | - Dominique Rainteau
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Antonin Lamaziere
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Emilie Gauliard
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Julien Kirchgesner
- Paris Centre for Microbiome Medicine FHU, Paris, France,Department of Gastroenterology, Sorbonne Université, INSERM, Institut Pierre Louis d’Epidémiologie et de Santé Publique, Assistance Publique-Hôpitaux de Paris, Hôpital Saint-Antoine, Paris, France
| | - Laurent Beaugerie
- Paris Centre for Microbiome Medicine FHU, Paris, France,Department of Gastroenterology, Sorbonne Université, INSERM, Institut Pierre Louis d’Epidémiologie et de Santé Publique, Assistance Publique-Hôpitaux de Paris, Hôpital Saint-Antoine, Paris, France
| | - Philippe Seksik
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology, Nancy University Hospital, Nancy, France,Inserm NGERE, Université de Lorraine, Vandœuvre-Lès-Nancy, France,FHU Cure, Nancy, France
| | - Harry Sokol
- Gastroenterology Department, Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France,Paris Centre for Microbiome Medicine FHU, Paris, France,INRA, UMR1319 Micalis & AgroParisTech, Jouy en Josas, France,CONTACT Harry Sokol Gastroenterology Department, Hôpital Saint-Antoine, 184 rue du Faubourg Saint-Antoine, 75571Paris CEDEX 12, France
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19
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Stockdale SR, Harrington RS, Shkoporov AN, Khokhlova EV, Daly KM, McDonnell SA, O'Reagan O, Nolan JA, Sheehan D, Lavelle A, Draper LA, Shanahan F, Ross RP, Hill C. Metagenomic assembled plasmids of the human microbiome vary across disease cohorts. Sci Rep 2022; 12:9212. [PMID: 35654877 PMCID: PMC9163076 DOI: 10.1038/s41598-022-13313-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 05/17/2022] [Indexed: 12/15/2022] Open
Abstract
We compiled a human metagenome assembled plasmid (MAP) database and interrogated differences across multiple studies that were originally designed to investigate the composition of the human microbiome across various lifestyles, life stages and events. This was performed as plasmids enable bacteria to rapidly expand their functional capacity through mobilisation, yet their contribution to human health and disease is poorly understood. We observed that inter-sample β-diversity differences of plasmid content (plasmidome) could distinguish cohorts across a multitude of conditions. We also show that reduced intra-sample plasmidome α-diversity is consistent amongst patients with inflammatory bowel disease (IBD) and Clostridioides difficile infections. We also show that faecal microbiota transplants can restore plasmidome diversity. Overall plasmidome diversity, specific plasmids, and plasmid-encoded functions can all potentially act as biomarkers of IBD or its severity. The human plasmidome is an overlooked facet of the microbiome and should be integrated into investigations regarding the role of the microbiome in promoting health or disease. Including MAP databases in analyses will enable a greater understanding of the roles of plasmid-encoded functions within the gut microbiome and will inform future human metagenome analyses.
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Affiliation(s)
- S R Stockdale
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland.
| | - R S Harrington
- School of Microbiology, University College Cork, Co. Cork, Ireland
| | - A N Shkoporov
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - E V Khokhlova
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - K M Daly
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - S A McDonnell
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - O O'Reagan
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - J A Nolan
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - D Sheehan
- Department of Medicine, University College Cork, Co. Cork, Ireland
| | - A Lavelle
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland.,Department of Medicine, University College Cork, Co. Cork, Ireland
| | - L A Draper
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - F Shanahan
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland.,Department of Medicine, University College Cork, Co. Cork, Ireland
| | - R P Ross
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - C Hill
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland. .,School of Microbiology, University College Cork, Co. Cork, Ireland.
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20
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O'Sullivan E, O'Sullivan M, Lavelle A. Five-year audit of adherence to an anaesthesia pre-induction checklist. Anaesthesia 2022; 77:1065. [PMID: 35568987 DOI: 10.1111/anae.15757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2022] [Indexed: 11/27/2022]
Affiliation(s)
| | | | - A Lavelle
- St. James's Hospital, Dublin, Ireland
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21
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Affiliation(s)
| | | | - A Lavelle
- St. James's Hospital, Dublin, Ireland
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22
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Boscaini S, Leigh SJ, Lavelle A, García-Cabrerizo R, Lipuma T, Clarke G, Schellekens H, Cryan JF. Microbiota and body weight control: Weight watchers within? Mol Metab 2021; 57:101427. [PMID: 34973469 PMCID: PMC8829807 DOI: 10.1016/j.molmet.2021.101427] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/08/2021] [Accepted: 12/23/2021] [Indexed: 02/07/2023] Open
Abstract
Background Despite several decades of research, managing body weight remains an unsolved clinical problem. Health problems associated with dysregulated body weight, such as obesity and cachexia, exhibit several gut microbiota alterations. There is an increased interest in utilising the gut microbiota for body weight control, as it responds to intervention and plays an important role in energy extraction from food, as well as biotransformation of nutrients. Scope of the review This review provides an overview of the role of the gut microbiota in the physiological and metabolic alterations observed in two body weight dysregulation-related disorders, namely obesity and cachexia. Second, we assess the available evidence for different strategies, including caloric restriction, intermittent fasting, ketogenic diet, bariatric surgery, probiotics, prebiotics, synbiotics, high-fibre diet, and fermented foods – effects on body weight and gut microbiota composition. This approach was used to give insights into the possible link between body weight control and gut microbiota configuration. Major conclusions Despite extensive associations between body weight and gut microbiota composition, limited success could be achieved in the translation of microbiota-related interventions for body weight control in humans. Manipulation of the gut microbiota alone is insufficient to alter body weight and future research is needed with a combination of strategies to enhance the effects of lifestyle interventions. The gut microbiota is involved in the control of nutrient availability, appetite, and body weight. Both obesity and cachexia are associated with altered gut microbiota. Specific dietary and surgical approaches positively impact body weight and gut microbiota. Manipulation of the gut microbiota alone is insufficient to alter body weight in humans.
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Affiliation(s)
- Serena Boscaini
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | | | - Aonghus Lavelle
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | | | - Timothy Lipuma
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Harriët Schellekens
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
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23
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Silva MC, Fernandes Â, Oliveira M, Resende C, Correia A, de-Freitas-Junior JC, Lavelle A, Andrade-da-Costa J, Leander M, Xavier-Ferreira H, Bessa J, Pereira C, Henrique RM, Carneiro F, Dinis-Ribeiro M, Marcos-Pinto R, Lima M, Lepenies B, Sokol H, Machado JC, Vilanova M, Pinho SS. Glycans as Immune Checkpoints: Removal of Branched N-glycans Enhances Immune Recognition Preventing Cancer Progression. Cancer Immunol Res 2020; 8:1407-1425. [PMID: 32933968 DOI: 10.1158/2326-6066.cir-20-0264] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/03/2020] [Accepted: 09/08/2020] [Indexed: 11/16/2022]
Abstract
Tumor growth is accompanied with dramatic changes in the cellular glycome, such as the aberrant expression of complex branched N-glycans. However, the role of this protumoral N-glycan in immune evasion and whether its removal contributes to enhancement of immune recognition and to unleashing an antitumor immune response remain elusive. We demonstrated that branched N-glycans are used by colorectal cancer cells to escape immune recognition, instructing the creation of immunosuppressive networks through inhibition of IFNγ. The removal of this "glycan-mask" exposed immunogenic mannose glycans that potentiated immune recognition by DC-SIGN-expressing immune cells, resulting in an effective antitumor immune response. We revealed a glycoimmune checkpoint in colorectal cancer, highlighting the therapeutic efficacy of its deglycosylation to potentiate immune recognition and, thus, improving cancer immunotherapy.
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Affiliation(s)
- Mariana C Silva
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Ângela Fernandes
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Maria Oliveira
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Carlos Resende
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Alexandra Correia
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Julio C de-Freitas-Junior
- Cellular and Molecular Oncobiology Program, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Aonghus Lavelle
- Sorbonne Université, INSERM, Saint-Antoine Research Center (CRSA), Paris, France
| | - Jéssica Andrade-da-Costa
- Cellular and Molecular Oncobiology Program, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Magdalena Leander
- Department of Hematology, Hospital Center of Porto, Porto, Portugal.,Multidisciplinary Unit for Biomedical Research, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Helena Xavier-Ferreira
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - José Bessa
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Carina Pereira
- CINTESIS - Centre for Health Technology and Services Research, University of Porto, Porto, Portugal.,Molecular Oncology and Viral Pathology Group, IPO Porto Research Group (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Rui M Henrique
- Department of Pathology and Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal.,Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Fátima Carneiro
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Department of Pathology, Hospital Center of São João, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal
| | - Mário Dinis-Ribeiro
- CINTESIS - Centre for Health Technology and Services Research, University of Porto, Porto, Portugal.,Department of Gastroenterology, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Ricardo Marcos-Pinto
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Department of Gastroenterology, Hospital Center of Porto, Porto, Portugal.,Medical Faculty, Centre for Research in Health Technologies and Information Systems, Porto, Portugal
| | - Margarida Lima
- Department of Hematology, Hospital Center of Porto, Porto, Portugal.,Multidisciplinary Unit for Biomedical Research, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Bernd Lepenies
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany.,Immunology Unit and Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Harry Sokol
- Sorbonne Université, INSERM, Saint-Antoine Research Center (CRSA), Paris, France.,INRA, UMR1319 Micalis, AgroParisTech, Jouy-en-Josas, France.,Department of Gastroenterology, Saint Antoine Hospital, Assistance Publique - Hopitaux de Paris, Sorbonne Universités, Paris, France
| | - José C Machado
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal
| | - Manuel Vilanova
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Salomé S Pinho
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal. .,Faculty of Medicine, University of Porto, Porto, Portugal
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24
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Hablot J, Ferhat M, Lavelle A, Salem F, Taieb M, Medvedovic J, Kindt N, Reboul P, Cailotto F, Jouzeau J, Eberl G, Sokol H, Moulin D. Tofacitinib treatment alters mucosal immunity and gut microbiota during experimental arthritis. Clin Transl Med 2020; 10:e163. [PMID: 32997419 PMCID: PMC7510778 DOI: 10.1002/ctm2.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 08/16/2020] [Indexed: 11/09/2022] Open
Affiliation(s)
| | | | - Aonghus Lavelle
- Sorbonne Université, INSERM Centre de Recherche Saint‐Antoine, CRSA Paris France
- Gastroenterology Department, Saint Antoine Hospital Assitance Publique‐Hopitaux de Paris (APHP) Paris France
- INRA UMR1319 Micalis & AgroParisTech, Jouy en Josas France
- Paris Center for Microbiome Medicine (PaCeMM) Paris France
| | | | | | - Jasna Medvedovic
- Microenvironment & Immunity Unit Institut Pasteur Paris France
- INSERM U1224 Paris France
| | | | | | | | - Jean‐Yves Jouzeau
- CNRS, IMoPA Université de Lorraine Nancy France
- Département de Pharmacologie Clinique et Toxicologie Centre Hospitalier Régional Universitaire de Nancy Vandoeuvre‐les‐Nancy France
| | - Gérard Eberl
- Microenvironment & Immunity Unit Institut Pasteur Paris France
- INSERM U1224 Paris France
| | - Harry Sokol
- Sorbonne Université, INSERM Centre de Recherche Saint‐Antoine, CRSA Paris France
- Gastroenterology Department, Saint Antoine Hospital Assitance Publique‐Hopitaux de Paris (APHP) Paris France
- INRA UMR1319 Micalis & AgroParisTech, Jouy en Josas France
- Paris Center for Microbiome Medicine (PaCeMM) Paris France
| | - David Moulin
- CNRS, IMoPA Université de Lorraine Nancy France
- Centre Hospitalier Régional Universitaire de Nancy Contrat d'interface Vandoeuvre‐les‐Nancy France
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25
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Lavelle A, Hoffmann TW, Pham HP, Langella P, Guédon E, Sokol H. Baseline microbiota composition modulates antibiotic-mediated effects on the gut microbiota and host. Microbiome 2019; 7:111. [PMID: 31375137 PMCID: PMC6676565 DOI: 10.1186/s40168-019-0725-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 07/18/2019] [Indexed: 05/17/2023]
Abstract
BACKGROUND Normal mammalian development and homeostasis are dependent upon the gut microbiota. Antibiotics, essential for the treatment and prophylaxis of bacterial infections, can have collateral effects on the gut microbiota composition, which can in turn have far-reaching and potentially deleterious consequences for the host. However, the magnitude and duration of such collateral effects appear to vary between individuals. Furthermore, the degree to which such perturbations affect the host response is currently unclear. We aimed to test the hypothesis that different human microbiomes have different responses to a commonly prescribed antibiotic and that these differences may impact the host response. METHODS Germ-free mice (n = 30) humanized with the microbiota of two unrelated donors (A and B) were subjected to a 7-day antibiotic challenge with amoxicillin-clavulanate ("co-amoxiclav"). Microbiome and colonic transcriptome analysis was performed, pre (day 0) and post antibiotics (day 8) and subsequently into recovery (days 11 and 18). RESULTS Unique community profiles were evident depending upon the donor, with donor A recipient mice being dominated by Prevotella and Faecalibacterium and donor B recipient mice dominated by Bacteroides and Parabacteroides. Donor A mice underwent a marked destabilization of their microbiota following antibiotic treatment, while donor B mice maintained a more stable profile. Dramatic and overlapping alterations in the host transcriptome were apparent following antibiotic challenge in both groups. Despite this overlap, donor A mice experienced a more significant alteration in gene expression and uniquely showed correlations between host pathways and key microbial genera. CONCLUSIONS Germ-free mice humanized by different donor microbiotas maintain distinct microbiome profiles, which respond in distinct ways to antibiotic challenge and evince host responses that parallel microbiome disequilibrium. These results suggest that inter-individual variation in the gut microbiota may contribute to personalized host responses following microbiota perturbation.
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Affiliation(s)
- Aonghus Lavelle
- Sorbonne Université, INSERM, Saint-Antoine Research Center (CRSA), Paris, France
| | | | | | | | - Eric Guédon
- STLO, INRA, Agrocampus Ouest, Rennes, France
| | - Harry Sokol
- Sorbonne Université, INSERM, Saint-Antoine Research Center (CRSA), Paris, France
- INRA, UMR1319 Micalis, AgroParisTech, Jouy-en-Josas, France
- Department of Gastroenterology, Saint Antoine Hospital, Assistance Publique – Hopitaux de Paris, Sorbonne Universités, 184 rue du Faubourg Saint-Antoine, 75571 Paris CEDEX 12, Paris, France
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26
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Abstract
The gut microbiome is fundamental to human health and development. Altered microbiomes have been associated with many diseases. However, variation between individuals, environmental effects, and a lack of standardization across studies makes differentiation between health and disease challenging. Large-scale population cohorts in different countries will be required to match disease subjects with healthy controls, whereas standardized, reproducible pipelines for analysis are required to compare findings between studies. Despite this, several conditions have already demonstrated great promise for developing microbiome-based biomarkers as well as providing a gateway into integrated personalized medicine.
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Affiliation(s)
- Aonghus Lavelle
- Department of Medicine, APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Colin Hill
- School of Microbiology, APC Microbiome Ireland, University College Cork, Cork, Ireland.
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27
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Hand F, Harmon C, Elliott LA, Caiazza F, Lavelle A, Maguire D, Hoti E, Nolan N, Geoghegan JG, Ryan EJ, O'Farrelly C. Depleted polymorphonuclear leukocytes in human metastatic liver reflect an altered immune microenvironment associated with recurrent metastasis. Cancer Immunol Immunother 2018; 67:1041-1052. [PMID: 29572702 PMCID: PMC11028161 DOI: 10.1007/s00262-018-2149-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 03/09/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Hepatic immunity, normally protective against neoplasia, is subverted in colorectal liver metastasis (CRLM). Here, we compare the inflammatory microenvironment of CRLM-bearing liver tissue to donor liver. METHODS Twenty-five patients undergoing resection for CRLM were recruited, 13 of whom developed intrahepatic recurrence within 18 months. Biopsies were obtained from tumour and normal liver tissue adjacent to and distal from, the tumour. Donor liver biopsies were obtained during transplantation. Biopsies were cultured and conditioned media (CM) screened for 102 inflammatory mediators. Twelve of these were validated by Luminex assay. Transwell assays measured cancer cell chemotaxis. Polymorphonuclear leukocytes (PMN) and lymphocytes were quantified in H&E sections. RESULTS Fewer periportal tissue-resident PMN were present in metastatic liver compared to donor liver. Patients with the fewest PMN in liver tissue distal to their tumour had a shorter time to intrahepatic recurrence (P < 0.001). IL-6, CXCL1, CXCL5, G-CSF, GM-CSF, VEGF, LIF, and CCL3 were higher in liver-bearing CRLM compared to donor tissue. Consequently, cancer cells migrated equally towards CM of all regions of metastatic liver but not towards donor liver CM. CONCLUSIONS The local inflammatory environment may affect both immune cell infiltration and cancer cell migration contributing to recurrence following resection for CRLM.
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Affiliation(s)
- Fiona Hand
- National Liver Unit, St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
- School of Biochemistry and Immunology and School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, 154-160 Pearse Street, Dublin 2, D02 R590, Ireland
| | - Cathal Harmon
- School of Biochemistry and Immunology and School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, 154-160 Pearse Street, Dublin 2, D02 R590, Ireland
| | - Louise A Elliott
- Centre for Colorectal Disease, School of Medicine, University College Dublin and St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Francesco Caiazza
- Centre for Colorectal Disease, School of Medicine, University College Dublin and St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Aonghus Lavelle
- Centre for Colorectal Disease, School of Medicine, University College Dublin and St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Donal Maguire
- National Liver Unit, St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Emir Hoti
- National Liver Unit, St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Niamh Nolan
- National Liver Unit, St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Justin G Geoghegan
- National Liver Unit, St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Elizabeth J Ryan
- Centre for Colorectal Disease, School of Medicine, University College Dublin and St. Vincent's Hospital, Elm Park, Dublin 4, Ireland
| | - Cliona O'Farrelly
- School of Biochemistry and Immunology and School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, 154-160 Pearse Street, Dublin 2, D02 R590, Ireland.
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Affiliation(s)
- Aonghus Lavelle
- Department of Medicine, APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Harry Sokol
- Sorbonne Université, École normale supérieure, PSL Research University, CNRS, INSERM, AP-HP, Hôpital Saint-Antoine, Laboratoire de biomolécules, LBM, Paris, France.,INRA, UMR1319 Micalis & AgroParisTech, Jouy en Josas, France
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Lavelle A. Festschrift for Ronan O'Connell: pouchitis, ulcerative colitis and the microbiome. Ir J Med Sci 2018. [PMID: 29524104 DOI: 10.1007/s11845-018-1785-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The hypothesis of altered bacterial communities contributing to the development of pouchitis began a scientific quest to link host mucosal factors, microbial metabolism and spatial structure of the colonic microbiome in ulcerative colitis, reaching its apotheosis with the integration of advanced spatial sampling with laser capture microdissection, mucin array profiling, molecular microbiology and next-generation sequencing technologies. This article, part of a festschrift, summarises the contributions of the O'Connell lab to the field of host-microbial interactions in inflammatory bowel disease.
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Affiliation(s)
- Aonghus Lavelle
- Department of Medicine, APC Microbiome Ireland, University College Cork, Cork, Ireland.
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Balfe A, Lennon G, Lavelle A, Docherty NG, Coffey JC, Sheahan K, Winter DC, O'Connell PR. Isolation and gene expression profiling of intestinal epithelial cells: crypt isolation by calcium chelation from in vivo samples. Clin Exp Gastroenterol 2018; 11:29-37. [PMID: 29391821 PMCID: PMC5769583 DOI: 10.2147/ceg.s145224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Aim The epithelial layer within the colon represents a physical barrier between the luminal contents and its underlying mucosa. It plays a pivotal role in mucosal homeostasis, and both tolerance and anti-pathogenic immune responses. Identifying signals of inflammation initiation and responses to stimuli from within the epithelial layer is critical to understanding the molecular pathways underlying disease pathology. This study validated a method to isolate and analyze epithelial populations, enabling investigations of epithelial function and response in a variety of disease setting. Materials and methods Epithelial cells were isolated from whole mucosal biopsies harvested from healthy controls and patients with active ulcerative colitis by calcium chelation. The purity of isolated cells was assessed by flow cytometry. The expression profiles of a panel of epithelial functional genes were investigated by reverse transcription-polymerase chain reaction (PCR) in isolated epithelial cells and corresponding mucosal biopsies. The expression profiles of isolated cells and corresponding mucosal biopsies were evaluated and compared between healthy and inflamed colonic tissue. Results Flow cytometry identified 97% of cells isolated as intestinal epithelial cells (IECs). Comparisons of gene expression profiles between the mucosal biopsies and isolated IECs demonstrated clear differences in the gene expression signatures. Sixty percent of the examined genes showed contrasting trends of expression between sample types. Conclusion The calcium chelation isolation method provided a reliable method for the isolation of a pure population of cells with preservation of epithelial cell-specific gene expression. This demonstrates the importance of sample choice when investigating functions directly affecting the colonic epithelial layer.
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Affiliation(s)
- Aine Balfe
- School of Medicine and Medical Science, University College Dublin, Belfield, Dublin.,Centre for Colorectal Disease, St Vincent's University Hospital Dublin, Dublin
| | - Grainne Lennon
- School of Medicine and Medical Science, University College Dublin, Belfield, Dublin.,Centre for Colorectal Disease, St Vincent's University Hospital Dublin, Dublin
| | - Aonghus Lavelle
- School of Medicine and Medical Science, University College Dublin, Belfield, Dublin.,Centre for Colorectal Disease, St Vincent's University Hospital Dublin, Dublin
| | - Neil G Docherty
- School of Medicine and Medical Science, University College Dublin, Belfield, Dublin
| | - J Calvin Coffey
- Graduate Entry Medical School, University Hospital Limerick, 4i Centre for Interventions in Infection, Inflammation and Immunity, University of Limerick, Limerick
| | - Kieran Sheahan
- Histopathology Department, St. Vincent's University Hospital Dublin, Dublin, Ireland
| | - Desmond C Winter
- Centre for Colorectal Disease, St Vincent's University Hospital Dublin, Dublin
| | - P Ronan O'Connell
- School of Medicine and Medical Science, University College Dublin, Belfield, Dublin.,Centre for Colorectal Disease, St Vincent's University Hospital Dublin, Dublin
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Abstract
The relevance of biogeography to the distal gut microbiota has been investigated in both health and inflammatory bowel disease (IBD), however multiple factors, including sample type and methodology, microbiota characterization and interpersonal variability make the construction of a core model of colonic biogeography challenging. In addition, how phylogenetic classification relates to immunogenicity and whether consistent alterations in the microbiota are associated with ulcerative colitis (UC) remain open questions. This addendum seeks to review the human colonic microbiota in health and UC as currently understood, in the broader context of the human microbiome.
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Affiliation(s)
- Aonghus Lavelle
- School of Medicine and Medical Science,
University College Dublin, Dublin, Ireland,Centre for Colorectal Disease, St.
Vincent's University Hospital, Dublin,
Ireland
| | - Grainne Lennon
- School of Medicine and Medical Science,
University College Dublin, Dublin, Ireland,Centre for Colorectal Disease, St.
Vincent's University Hospital, Dublin,
Ireland
| | - Desmond C. Winter
- School of Medicine and Medical Science,
University College Dublin, Dublin, Ireland,Centre for Colorectal Disease, St.
Vincent's University Hospital, Dublin,
Ireland
| | - P. Ronan O'Connell
- School of Medicine and Medical Science,
University College Dublin, Dublin, Ireland,Centre for Colorectal Disease, St.
Vincent's University Hospital, Dublin,
Ireland
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Lavelle A, Lennon G, O'Sullivan O, Docherty N, Balfe A, Maguire A, Mulcahy HE, Doherty G, O'Donoghue D, Hyland J, Ross RP, Coffey JC, Sheahan K, Cotter PD, Shanahan F, Winter DC, O'Connell PR. Spatial variation of the colonic microbiota in patients with ulcerative colitis and control volunteers. Gut 2015; 64:1553-61. [PMID: 25596182 PMCID: PMC4602252 DOI: 10.1136/gutjnl-2014-307873] [Citation(s) in RCA: 179] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 10/19/2014] [Indexed: 12/18/2022]
Abstract
OBJECTIVES The relevance of spatial composition in the microbial changes associated with UC is unclear. We coupled luminal brush samples, mucosal biopsies and laser capture microdissection with deep sequencing of the gut microbiota to develop an integrated spatial assessment of the microbial community in controls and UC. DESIGN A total of 98 samples were sequenced to a mean depth of 31,642 reads from nine individuals, four control volunteers undergoing routine colonoscopy and five patients undergoing surgical colectomy for medically-refractory UC. Samples were retrieved at four colorectal locations, incorporating the luminal microbiota, mucus gel layer and whole mucosal biopsies. RESULTS Interpersonal variability accounted for approximately half of the total variance. Surprisingly, within individuals, asymmetric Eigenvector map analysis demonstrated differentiation between the luminal and mucus gel microbiota, in both controls and UC, with no differentiation between colorectal regions. At a taxonomic level, differentiation was evident between both cohorts, as well as between the luminal and mucosal compartments, with a small group of taxa uniquely discriminating the luminal and mucosal microbiota in colitis. There was no correlation between regional inflammation and a breakdown in this spatial differentiation or bacterial diversity. CONCLUSIONS Our study demonstrates a conserved spatial structure to the colonic microbiota, differentiating the luminal and mucosal communities, within the context of marked interpersonal variability. While elements of this structure overlap between UC and control volunteers, there are differences between the two groups, both in terms of the overall taxonomic composition and how spatial structure is ascribable to distinct taxa.
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Affiliation(s)
- A Lavelle
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland,Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - G Lennon
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland,Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - O O'Sullivan
- Teagasc, Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - N Docherty
- Department of Physiology, Trinity College Dublin, Dublin, Ireland
| | - A Balfe
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland
| | - A Maguire
- Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - H E Mulcahy
- Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - G Doherty
- Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - D O'Donoghue
- Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - J Hyland
- Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - R P Ross
- Teagasc, Food Research Centre, Moorepark, Fermoy, County Cork, Ireland,Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | - J C Coffey
- 4i Centre for Interventions in Infection, Inflammation and Immunity, Graduate Entry Medical School, University of Limerick, Limerick, Ireland
| | - K Sheahan
- Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - P D Cotter
- Teagasc, Food Research Centre, Moorepark, Fermoy, County Cork, Ireland,Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | - F Shanahan
- Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | - D C Winter
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland,Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
| | - P R O'Connell
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland,Centre for Colorectal Disease, Saint Vincent's University Hospital, Dublin, Ireland
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Lennon G, Balfe Á, Earley H, Devane LA, Lavelle A, Winter DC, Coffey JC, O'Connell PR. Influences of the colonic microbiome on the mucous gel layer in ulcerative colitis. Gut Microbes 2014; 5:277-85. [PMID: 24714392 PMCID: PMC4153764 DOI: 10.4161/gmic.28793] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The colonic mucus gel layer (MGL) is a critical component of the innate immune system acting as a physical barrier to microbes, luminal insults, and toxins. Mucins are the major component of the MGL. Selected microbes have the potential to interact with, bind to, and metabolize mucins. The tolerance of the host to the presence of these microbes is critical to maintaining MGL homeostasis. In disease states such as ulcerative colitis (UC), both the mucosa associated microbes and the constituent MGL mucins have been shown to be altered. Evidence is accumulating that implicates the potential for mucin degrading bacteria to negatively impact the MGL and its stasis. These effects appear more pronounced in UC. This review is focused on the host-microbiome interactions within the setting of the MGL. Special focus is given to the mucolytic potential of microbes and their interactions in the setting of the colitic colon.
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Affiliation(s)
- Gráinne Lennon
- School of Medicine and Medical Sciences; University College Dublin; Dublin, Ireland,Centre for Colorectal Disease; St Vincent's University Hospital; Elm Park, Ireland
| | - Áine Balfe
- School of Medicine and Medical Sciences; University College Dublin; Dublin, Ireland,Centre for Colorectal Disease; St Vincent's University Hospital; Elm Park, Ireland
| | - Helen Earley
- School of Medicine and Medical Sciences; University College Dublin; Dublin, Ireland,Centre for Colorectal Disease; St Vincent's University Hospital; Elm Park, Ireland
| | - Liam A Devane
- School of Medicine and Medical Sciences; University College Dublin; Dublin, Ireland,Centre for Colorectal Disease; St Vincent's University Hospital; Elm Park, Ireland
| | - Aonghus Lavelle
- School of Medicine and Medical Sciences; University College Dublin; Dublin, Ireland,Centre for Colorectal Disease; St Vincent's University Hospital; Elm Park, Ireland
| | - Desmond C Winter
- School of Medicine and Medical Sciences; University College Dublin; Dublin, Ireland,Centre for Colorectal Disease; St Vincent's University Hospital; Elm Park, Ireland
| | - J Calvin Coffey
- Graduate Entry Medical School; University Hospital Limerick; University of Limerick; Limerick, Ireland
| | - P Ronan O'Connell
- School of Medicine and Medical Sciences; University College Dublin; Dublin, Ireland,Centre for Colorectal Disease; St Vincent's University Hospital; Elm Park, Ireland,Correspondence to: P Ronan O'Connell,
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Lennon G, Balfe Á, Bambury N, Lavelle A, Maguire A, Docherty NG, Coffey JC, Winter DC, Sheahan K, O'Connell PR. Correlations between colonic crypt mucin chemotype, inflammatory grade and Desulfovibrio species in ulcerative colitis. Colorectal Dis 2014; 16:O161-9. [PMID: 24345279 DOI: 10.1111/codi.12503] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 10/02/2013] [Indexed: 12/13/2022]
Abstract
AIM The colonic mucus gel layer is composed of mucins that may be sulphated or sialyated. Sulphated mucins predominate in health while in ulcerative colitis (UC) sulphation is reduced. These differences result directly from inflammatory events. It may also be hypothesized that they arise in part from alterations in the colonic microbiota, particularly changes in the burden of sulphated mucin-metabolizing species, such as Desulfovibrio (DSV) bacteria. The aim of this study was to correlate colonic mucin chemotypes and inflammatory scores in health and UC and relate these changes to changes in the colonization of colonic crypts by DSV. METHOD Paired colonic biopsies from 34 healthy controls (HC) and 19 patients with active UC were collected for the purpose of parallel histological and microbiological assessment. High-iron diamine and Alcian blue staining and haematoxylin and eosin of mucosal biopsy specimens were used to assess histological changes within the clinical spectrum of UC. Quantitative real-time polymerase chain reaction analysis was employed to determine the total and DSV copy number within the colonic crypts. RESULTS Compared with HC, the mucin chemotype in UC was less sulphated and inversely correlated with the degree of mucosal inflammation. A weak but significant negative correlation was found between the abundance of sulphated mucins and DSV burden. CONCLUSION Mucin composition strongly correlates with the degree of mucosal inflammation, and to a lesser extent with DSV burden. These data suggest that mucin chemotype and DSV burden are linked phenomena and highlight the need to consider changes in mucin chemotype in the setting of microbial dysbiosis occurring within the colitic colon. What does this paper add to the literature? Decreased sulphation of mucins has been associated with inflammation in ulcerative colitis. Currently there are few data describing the relationship between microbial species and changes in mucin chemotype. This study validates previous findings and presents evidence of changes in mucin chemotype occurring in tandem with coherent changes in the microbiota within crypt niches.
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Affiliation(s)
- G Lennon
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland; Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
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Lavelle A, Lennon G, Docherty N, Balfe A, Mulcahy HE, Doherty G, O′Donoghue D, Hyland JM, Shanahan F, Sheahan K, Coffey JC, Winter DC, O′Connell PR. Depth-dependent differences in community structure of the human colonic microbiota in health. PLoS One 2013; 8:e78835. [PMID: 24223167 PMCID: PMC3819420 DOI: 10.1371/journal.pone.0078835] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Accepted: 09/16/2013] [Indexed: 12/21/2022] Open
Abstract
Objective The aims of this study were to develop techniques for spatial microbial assessment in humans and to establish colonic luminal and mucosal spatial ecology, encompassing longitudinal and cross-sectional axes. Design A microbiological protected specimen brush was used in conjunction with a biopsy forceps to sample the colon in nine healthy volunteers undergoing colonoscopy. Terminal Restriction Fragment Length Polymorphism analysis was used to determine the major variables in the spatial organization of the colonic microbiota. Results Protected Specimen Brush sampling retrieved region-specific, uncontaminated samples that were enriched for bacterial DNA and depleted in human DNA when compared to biopsy samples. Terminal Restriction Fragment Length Polymorphism analysis revealed a segmentation of bacterial communities between the luminal brush and biopsy-associated ecological niches with little variability across the longitudinal axis of the colon and reduced diversity in brush samples. Conclusion These results support the concept of a microbiota with little longitudinal variability but with some degree of segregation between luminal and mucosal communities.
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Affiliation(s)
- Aonghus Lavelle
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Grainne Lennon
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Neil Docherty
- Department of Physiology, Trinity College Dublin, Ireland
| | - Aine Balfe
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland
| | - Hugh E. Mulcahy
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Glen Doherty
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Diarmuid O′Donoghue
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - John M. Hyland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - Fergus Shanahan
- Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | - Kieran Sheahan
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - J. Calvin Coffey
- 4i Centre for Interventions in Inflammation, Infection and Immunity, Graduate Entry Medical School, University of Limerick, Limerick, Ireland
| | - Desmond C. Winter
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
| | - P. Ronan O′Connell
- University College Dublin, School of Medicine and Medical Science, Dublin, Ireland
- Centre for Colorectal Disease, St Vincent's University Hospital, Dublin, Ireland
- * E-mail:
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Smyth L, Lavelle A, Salman R, Lucey J, McCaffrey J, Maher MA, Gallagher DJ. Burnout in the Irish oncology community: Results of a single-institution study. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.e19601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e19601 Background: Several European studies suggest that healthcare professionals working in oncology display higher levels of professional burnout than their colleagues from non-oncology units. We aimed to identify the level of burnout of professionals working in cancer care at a single institution in Dublin, Ireland. Methods: 143 oncology staff members were emailed a 3 section questionaire. We employed the Maslach Burnout Inventory, a validated, burnout-specific instrument, incorporating a three-dimensional assessment of the syndrome through its subscales: emotional exhaustion (EE), depersonalization (DP) and personal achievment (PA). Sociodemographic, protective and predisposing variables were identified in tandem, while the final section afforded respondents an opportunity to speculate on workplace stressors and their potential remediation. The primary endpoint was overall high burnout. Secondary endpoints were mean scores for each individual category. Wilcoxon rank sum and Kruskal-Wallis tests were performed on SPSS version 18. Results: The overall response rate was 41.3% (59/143) (see table). Three respondents (5.1%) reported high levels of burnout in all 3 categories. In subcategory analysis, men had significantly higher mean DP scores [9, SD: 6.03] than women [5.3,SD: 4.46](p < .05) and residents had significantly higher DP scores [8.11,SD: 4.46] than attendings [4.14,SD: 3.2]( p < .05). Regression analysis, found that being male was a significant predictor for high levels of depersonalization but found no predictor for EE or PA. Conclusions: We identified low levels of burnout among Irish cancer care professional. Protective factors such as age <35yrs (66%), religion (68%), hobbies (86%),working <50 hours (66%) and being in a relationship (74%) were at high levels, which may have biased our results. A national expansion and comparison with international figures is planned and will be presented at ASCO. [Table: see text]
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Affiliation(s)
| | | | | | - James Lucey
- St. Patrick's University Hospital, Dublin, Ireland
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Lavelle A, Sugrue R, Lawler G, Mulligan N, Kelleher B, Murphy DM, Gaine SP. Sitaxentan-induced hepatic failure in two patients with pulmonary arterial hypertension. Eur Respir J 2010; 34:770-1. [PMID: 19720812 DOI: 10.1183/09031936.00058409] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Rajamani K, Leong S, Lavelle A, Docherty JR. Prejunctional actions of methylenedioxymethamphetamine in vas deferens from wild-type and alpha(2A/D)-adrenoceptor knockout mice. Eur J Pharmacol 2001; 423:223-8. [PMID: 11448488 DOI: 10.1016/s0014-2999(01)01118-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Methylenedioxymethamphetamine (MDMA, 'ecstasy') has major agonist actions at prejunctional alpha(2A/D)-adrenoceptors in the rat. We wished to establish whether MDMA has potency at more than one subtype of alpha(2)-adrenoceptor, in line with affinity in ligand-binding studies. We have investigated the effects of MDMA in vas deferens from wild-type and from knockout mice lacking the alpha(2A/D)-adrenoceptor. The potency of the alpha(2)-adrenoceptor agonist xylazine at inhibiting stimulation-evoked contractions to a single stimulus in the presence of cocaine was significantly reduced in knockout (pD(2) of 8.27+/-0.07, -log M, n=4) as compared with wild-type mice (8.69+/-0.08, n=4, P<0.05), whereas potency of MDMA was unchanged (5.39+/-0.06, n=4 versus 5.38+/-0.06, n=6). Similar differences between xylazine and MDMA were seen for responses to stimulation at 10 Hz for 4 s. In studies of mouse atria pre-incubated with (3)H-noradrenaline, the stimulation-evoked release of tritium was inhibited to a similar extent by MDMA (10 microM) in tissues from wild-type and knockout mice. The prejunctional alpha(2A/D)-adrenoceptor is reported to be replaced by the alpha(2C)-adrenoceptor in this knockout mouse, so that we have evidence that suggests that MDMA has similar potencies at both subtypes in functional studies.
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MESH Headings
- Adrenergic Agents/pharmacology
- Adrenergic Uptake Inhibitors/pharmacology
- Adrenergic alpha-Agonists/pharmacology
- Animals
- Desipramine/pharmacology
- Dose-Response Relationship, Drug
- Electric Stimulation
- Female
- Genotype
- Heart Atria/drug effects
- Heart Atria/metabolism
- In Vitro Techniques
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle Contraction/drug effects
- N-Methyl-3,4-methylenedioxyamphetamine/pharmacology
- Neuromuscular Junction/drug effects
- Nifedipine/pharmacology
- Norepinephrine/metabolism
- Oxymetazoline/pharmacology
- Receptors, Adrenergic, alpha-2/drug effects
- Receptors, Adrenergic, alpha-2/genetics
- Receptors, Adrenergic, alpha-2/physiology
- Tritium/metabolism
- Vas Deferens/drug effects
- Vas Deferens/physiology
- Vasodilator Agents/pharmacology
- Xylazine/pharmacology
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Affiliation(s)
- K Rajamani
- Department of Physiology, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
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Jones KJ, Lavelle A. Differential effects of axotomy on immature and mature hamster facial neurons: a time course study of initial nucleolar and nuclear changes. J Neurocytol 1986; 15:197-206. [PMID: 3723147 DOI: 10.1007/bf01611656] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The early nuclear and nucleolar responses at 0.5, 1, 2 and 4 days after axotomy were observed in neurons just before and after the completion of nuclear maturation. Axotomy of hamster facial motor neurons at a postnatal age of 15 days did not produce any changes within the nucleus that were significantly different from those of control cells. In addition, no significant changes were evident in the adults at 0.5 and 1 day after axotomy. At postoperative days 2 and 4, however, the adult neurons showed enlargement of the nucleus and nucleolus. Nucleolonemal strands became more rounded and distinct, and the large cluster of granules located centrally in the nucleolus disaggregated. The irregularly distributed clumps of nucleolus-associated chromatin dispersed to form a thin shell about the nucleolar periphery. In adults at postoperative day 4, the nucleoplasmic granules became more homogeneous and less distinctly outlined than normal. The peak of both nucleolar and nuclear responses coincided at 2 days after injury in the adult, i.e. 2 days before the previously documented chromatolytic peak at 4 days after injury. These studies on the ultrastructural level support our previous hypothesis that the 15-day neurons are synthesizing at peak capacity related to their rapid growth phase and cannot be stimulated further by axotomy. The adult neurons, however, do undergo a metabolic reorganization for regenerative synthesis, and the nucleolar and nuclear changes observed are indicative of transcriptive alterations involving the underlying genome.
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