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Costa DVS, Pham N, Loureiro AV, Yang SE, Behm BW, Warren CA. Clostridioides difficile infection promotes gastrointestinal dysfunction in human and mice post-acute phase of the disease. Anaerobe 2024; 87:102837. [PMID: 38527650 PMCID: PMC11180562 DOI: 10.1016/j.anaerobe.2024.102837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/27/2024]
Abstract
OBJECTIVES In the US, Clostridioides difficile (C. difficile) infection (CDI) is the 8th leading cause of hospital readmission and 7th for mortality among all gastrointestinal (GI) disorders. Here, we investigated GI dysfunction post-CDI in humans and mice post-acute infection. MATERIALS AND METHODS From March 2020 to July 2021, we reviewed the clinical records of 67 patients referred to the UVA Complicated C. difficile clinic for fecal microbiota transplantation (FMT) eligibility. C57BL/6 mice were infected with C. difficile and clinical scores were determined daily. Stool samples from mice were collected to measure the shedding of C. difficile and myeloperoxidase (MPO) levels. On day 21 post-infection, Evans's blue and FITC-70kDa methods were performed to evaluate GI motility in mice. RESULTS Of the 67 patients evaluated at the C. difficile clinic, 40 patients (59.7%) were confirmed to have CDI, and 22 patients (32.8%) with post-CDI IBS (diarrhea-type, constipation-type, and mixed-type). In infected mice, levels of MPO in stools and clinical score were higher on day 3. On day 21, mice recovered from body weight loss induced by CDI, and fecal MPO was undetectable. The total GI transit time (TGITT) and FITC-70kDa levels on the proximal colon were increased in infected mice (p = 0.002), suggesting a constipation phenotype post-acute phase of CDI. A positive correlation intestinal inflammation on day 3 and TGITT on day 21 was observed. CONCLUSION In conclusion, post-infection intestinal dysfunction occurs in humans and mice post-CDI. Importantly, we have validated in the mouse model that CDI causes abnormal GI transit in the recovery phase of the disease, indicating the potential utility of the model in exploring the underlying mechanisms of post-infectious IBS in humans.
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Affiliation(s)
- Deiziane V S Costa
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA.
| | - Natalie Pham
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
| | - Andrea V Loureiro
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Suemin E Yang
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
| | - Brian W Behm
- Division of Gastroenterology and Hepatology, University of Virginia, Charlottesville, VA, USA
| | - Cirle A Warren
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA.
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Suman S. Enteric Nervous System Alterations in Inflammatory Bowel Disease: Perspectives and Implications. GASTROINTESTINAL DISORDERS 2024; 6:368-379. [PMID: 38872954 PMCID: PMC11175598 DOI: 10.3390/gidisord6020025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/15/2024] Open
Abstract
The enteric nervous system (ENS), consisting of neurons and glial cells, is situated along the gastrointestinal (GI) tract's wall and plays a crucial role in coordinating digestive processes. Recent research suggests that the optimal functioning of the GI system relies on intricate connections between the ENS, the intestinal epithelium, the immune system, the intestinal microbiome, and the central nervous system (CNS). Inflammatory bowel disease (IBD) encompasses a group of chronic inflammatory disorders, such as Crohn's disease (CD) and ulcerative colitis (UC), characterized by recurring inflammation and damage to the GI tract. This review explores emerging research in the dynamic field of IBD and sheds light on the potential role of ENS alterations in both the etiology and management of IBD. Specifically, we delve into IBD-induced enteric glial cell (EGC) activation and its implications for persistent enteric gliosis, elucidating how this activation disrupts GI function through alterations in the gut-brain axis (GBA). Additionally, we examine IBD-associated ENS alterations, focusing on EGC senescence and the acquisition of the senescence-associated secretory phenotype (SASP). We highlight the pivotal role of these changes in persistent GI inflammation and the recurrence of IBD. Finally, we discuss potential therapeutic interventions involving senotherapeutic agents, providing insights into potential avenues for managing IBD by targeting ENS-related mechanisms. This approach might represent a potential alternative to managing IBD and advance treatment of this multifaceted disease.
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Affiliation(s)
- Shubhankar Suman
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
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3
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Ziegler AL, Caldwell ML, Craig SE, Hellstrom EA, Sheridan AE, Touvron MS, Pridgen TA, Magness ST, Odle J, Van Landeghem L, Blikslager AT. Enteric glial cell network function is required for epithelial barrier restitution following intestinal ischemic injury in the early postnatal period. Am J Physiol Gastrointest Liver Physiol 2024; 326:G228-G246. [PMID: 38147796 PMCID: PMC11211042 DOI: 10.1152/ajpgi.00216.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 08/23/2023] [Accepted: 09/12/2023] [Indexed: 12/28/2023]
Abstract
Ischemic damage to the intestinal epithelial barrier, such as in necrotizing enterocolitis or small intestinal volvulus, is associated with higher mortality rates in younger patients. We have recently reported a powerful pig model to investigate these age-dependent outcomes in which mucosal barrier restitution is strikingly absent in neonates but can be rescued by direct application of homogenized mucosa from older, juvenile pigs by a yet-undefined mechanism. Within the mucosa, a postnatally developing network of enteric glial cells (EGCs) is gaining recognition as a key regulator of the mucosal barrier. Therefore, we hypothesized that the developing EGC network may play an important role in coordinating intestinal barrier repair in neonates. Neonatal and juvenile jejunal mucosa recovering from surgically induced intestinal ischemia was visualized by scanning electron microscopy and the transcriptomic phenotypes were assessed by bulk RNA sequencing. EGC network density and glial activity were examined by Gene Set Enrichment Analysis, three-dimensional (3-D) volume imaging, and Western blot and its function in regulating epithelial restitution was assessed ex vivo in Ussing chamber using the glia-specific inhibitor fluoroacetate (FA), and in vitro by coculture assay. Here we refine and elaborate our translational model, confirming a neonatal phenotype characterized by a complete lack of coordinated reparative signaling in the mucosal microenvironment. Furthermore, we report important evidence that the subepithelial EGC network changes significantly over the early postnatal period and demonstrate that the proximity of a specific functional population of EGC to wounded intestinal epithelium contributes to intestinal barrier restitution following ischemic injury.NEW & NOTEWORTHY This study refines a powerful translational pig model, defining an age-dependent relationship between enteric glia and the intestinal epithelium during intestinal ischemic injury and confirming an important role for enteric glial cell (EGC) activity in driving mucosal barrier restitution. This study suggests that targeting the enteric glial network could lead to novel interventions to improve recovery from intestinal injury in neonatal patients.
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Affiliation(s)
- Amanda L Ziegler
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Madison L Caldwell
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Sara E Craig
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Emily A Hellstrom
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Anastasia E Sheridan
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Melissa S Touvron
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Tiffany A Pridgen
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Scott T Magness
- Joint Department of Biomedical Engineering, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, United States
| | - Jack Odle
- Department of Animal Science, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, North Carolina, United States
| | - Laurianne Van Landeghem
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
| | - Anthony T Blikslager
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States
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4
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Montalbán-Rodríguez A, Abalo R, López-Gómez L. From the Gut to the Brain: The Role of Enteric Glial Cells and Their Involvement in the Pathogenesis of Parkinson's Disease. Int J Mol Sci 2024; 25:1294. [PMID: 38279293 PMCID: PMC10816228 DOI: 10.3390/ijms25021294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/28/2024] Open
Abstract
The brain-gut axis has been identified as an important contributor to the physiopathology of Parkinson's disease. In this pathology, inflammation is thought to be driven by the damage caused by aggregation of α-synuclein in the brain. Interestingly, the Braak's theory proposes that α-synuclein misfolding may originate in the gut and spread in a "prion-like" manner through the vagus nerve into the central nervous system. In the enteric nervous system, enteric glial cells are the most abundant cellular component. Several studies have evaluated their role in Parkinson's disease. Using samples obtained from patients, cell cultures, or animal models, the studies with specific antibodies to label enteric glial cells (GFAP, Sox-10, and S100β) seem to indicate that activation and reactive gliosis are associated to the neurodegeneration produced by Parkinson's disease in the enteric nervous system. Of interest, Toll-like receptors, which are expressed on enteric glial cells, participate in the triggering of immune/inflammatory responses, in the maintenance of intestinal barrier integrity and in the configuration of gut microbiota; thus, these receptors might contribute to Parkinson's disease. External factors like stress also seem to be relevant in its pathogenesis. Some authors have studied ways to reverse changes in EGCs with interventions such as administration of Tryptophan-2,3-dioxygenase inhibitors, nutraceuticals, or physical exercise. Some researchers point out that beyond being activated during the disease, enteric glial cells may contribute to the development of synucleinopathies. Thus, it is still necessary to further study these cells and their role in Parkinson's disease.
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Affiliation(s)
- Alba Montalbán-Rodríguez
- Department of Basic Health Sciences, Faculty of Health Sciences, University Rey Juan Carlos (URJC), 28922 Alcorcon, Spain; (A.M.-R.); (L.L.-G.)
- High Performance Research Group in Physiopathology and Pharmacology of the Digestive System (NeuGut-URJC), University Rey Juan Carlos (URJC), 28922 Alcorcón, Spain
| | - Raquel Abalo
- Department of Basic Health Sciences, Faculty of Health Sciences, University Rey Juan Carlos (URJC), 28922 Alcorcon, Spain; (A.M.-R.); (L.L.-G.)
- High Performance Research Group in Physiopathology and Pharmacology of the Digestive System (NeuGut-URJC), University Rey Juan Carlos (URJC), 28922 Alcorcón, Spain
- Associated R+D+i Unit to the Institute of Medicinal Chemistry (IQM), Scientific Research Superior Council (CSIC), 28006 Madrid, Spain
- Working Group of Basic Sciences on Pain and Analgesia, Spanish Pain Society, 28046 Madrid, Spain
- Working Group of Basic Sciences on Cannabinoids, Spanish Pain Society, 28046 Madrid, Spain
| | - Laura López-Gómez
- Department of Basic Health Sciences, Faculty of Health Sciences, University Rey Juan Carlos (URJC), 28922 Alcorcon, Spain; (A.M.-R.); (L.L.-G.)
- High Performance Research Group in Physiopathology and Pharmacology of the Digestive System (NeuGut-URJC), University Rey Juan Carlos (URJC), 28922 Alcorcón, Spain
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5
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Sun A, Hu A, Lin J, Wang L, Xie C, Shi Y, Hong Q, Zhao G. Involvement of iNOS-induced reactive enteric glia cells in gastrointestinal motility disorders of postoperative Ileus mice. J Chem Neuroanat 2023; 133:102312. [PMID: 37459999 DOI: 10.1016/j.jchemneu.2023.102312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/02/2023] [Accepted: 07/14/2023] [Indexed: 09/05/2023]
Abstract
Postoperative ileus (POI) is the cessation or reduction of gastrointestinal (GI) motility after surgery. Reactive enteric glial cells (EGCs) are critical for maintaining bowel function. However, the triggering mechanisms and downstream effects of reactive EGCs in POI were poorly understood. The goal of this current study was to investigate whether the inducible nitric oxide synthase (iNOS)-driven reactive EGCs participated in GI motility disorders and mechanisms underlying altered GI motility in POI. Intestinal manipulation (IM)-induced POI mice and iNOS-/- mice were used in the study. Longitudinal muscle and myenteric plexuses (LMMPs) from the distal small intestine were stained by immunofluorescence. Our results found that the GI motility disorders occurred in the IM-induced POI mice, and reactive EGCs were observed in LMMPs. Glial metabolic inhibitor gliotoxin fluorocitrate (FC) treatment or iNOS gene knockout attenuated GI motility dysfunction. In addition, we also found that FC treatment or iNOS gene knockout significantly inhibited the fluorescence intensity macrophage colony-stimulating factor (M-CSF), which reduced M2 phenotype macrophages activation in LMMPs of IM-induced POI mice. Our findings demonstrated that iNOS-driven reactive EGCs played a key role and were tightly linked to the MMs homeostasis in the POI mice. EGCs are emerging as a new frontier in neurogastroenterology and a potential therapeutic target.
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Affiliation(s)
- Ailing Sun
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China
| | - An Hu
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China
| | - Jialing Lin
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China
| | - Linan Wang
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China
| | - Chuangbo Xie
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China
| | - Yongyong Shi
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China.
| | - Qingxiong Hong
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China.
| | - Gaofeng Zhao
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510000, China.
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Luisa Valerio de Mello Braga L, Simão G, Silva Schiebel C, Caroline Dos Santos Maia A, Mulinari Turin de Oliveira N, Barbosa da Luz B, Rita Corso C, Soares Fernandes E, Maria Ferreira D. Rodent models for anticancer toxicity studies: contributions to drug development and future perspectives. Drug Discov Today 2023:103626. [PMID: 37224998 DOI: 10.1016/j.drudis.2023.103626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 05/08/2023] [Accepted: 05/17/2023] [Indexed: 05/26/2023]
Abstract
Antineoplastic treatment induces a type of gastrointestinal toxicity known as mucositis. Findings in animal models are usually easily reproducible, and standardized treatment regimens are often used, thus supporting translational science. Essential characteristics of mucositis, including intestinal permeability, inflammation, immune and oxidative responses, and tissue repair mechanisms, can be easily investigated in these models. Given the effects of mucositis on the quality of life of patients with cancer, and the importance of experimental models in the development of more effective new therapeutic alternatives, this review discusses progress and current challenges in using experimental models of mucositis in translational pharmacology research. Teaser Experimental models for studying gastrointestinal mucositis have provided a wealth of information improving the understanding of antineoplastic toxicity.
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Affiliation(s)
- Lara Luisa Valerio de Mello Braga
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Gisele Simão
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Carolina Silva Schiebel
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Andressa Caroline Dos Santos Maia
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Natalia Mulinari Turin de Oliveira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Bruna Barbosa da Luz
- Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Claudia Rita Corso
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Elizabeth Soares Fernandes
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Daniele Maria Ferreira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil; Programa de Pós-graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba, PR, Brazil.
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7
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Sun Z, Wang X, Feng S, Xie C, Xing Y, Guo L, Zhao J, Ji C. A review of neuroendocrine immune system abnormalities in IBS based on the brain–gut axis and research progress of acupuncture intervention. Front Neurosci 2023; 17:934341. [PMID: 36968497 PMCID: PMC10034060 DOI: 10.3389/fnins.2023.934341] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 02/07/2023] [Indexed: 03/11/2023] Open
Abstract
Irritable bowel syndrome (IBS) is a common digestive disorder observed in clinics. Current studies suggest that the pathogenesis of the disease is closely related to abnormal brain–gut interactions, hypokinesia, visceral sensory hypersensitivity in the gastrointestinal tract, and alterations in the intestinal microenvironment. However, it is difficult for a single factor to explain the heterogeneity of symptoms. The Rome IV criteria emphasized the holistic biologic-psycho-social model of IBS, suggesting that symptoms of the disease are closely related to neurogastroenterology and various abnormalities in brain–gut interaction. This study comprehensively reviewed the relationship between the brain–gut axis and IBS, the structure of the brain–gut axis, and the relationship between the brain–gut axis and intestinal microenvironment, and discussed the relationship between the abnormal regulation of the nervous system, endocrine system, and immune system and the incidence of IBS on the basis of brain–gut axis. In terms of treatment, acupuncture therapy can regulate the neuroendocrine-immune system of the body and improve the intestinal microenvironment, and it has the advantages of safety, economy, and effectiveness. We study the pathogenesis of IBS from local to global and micro to macro, and review the use of acupuncture to treat the disease as a whole so as to provide new ideas for the treatment of the disease.
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Affiliation(s)
- Zhangyin Sun
- College of Acupuncture and Moxibustion, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
- Department of Acupuncture and Moxibustion, Shaanxi Hospital of Traditional Chinese Medicine, Xi'an, China
| | - Xuejiao Wang
- College of Acupuncture and Moxibustion, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
- Department of Acupuncture and Moxibustion, Shaanxi Hospital of Traditional Chinese Medicine, Xi'an, China
| | - Shangsheng Feng
- MOE Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Chaoju Xie
- College of Acupuncture and Moxibustion, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
- Department of Acupuncture and Moxibustion, Shaanxi Hospital of Traditional Chinese Medicine, Xi'an, China
| | - Yu Xing
- College of Acupuncture and Moxibustion, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
- Department of Acupuncture and Moxibustion, Shaanxi Hospital of Traditional Chinese Medicine, Xi'an, China
| | - Liang Guo
- College of Acupuncture and Moxibustion, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
- Department of Acupuncture and Moxibustion, Shaanxi Hospital of Traditional Chinese Medicine, Xi'an, China
| | - Jingyu Zhao
- Department of Acupuncture and Moxibustion, Xi'an Hospital of Traditional Chinese Medicine, Xi'an, China
- *Correspondence: Jingyu Zhao
| | - Changchun Ji
- Department of Acupuncture and Moxibustion, Shaanxi Hospital of Traditional Chinese Medicine, Xi'an, China
- Department of Acupuncture and Moxibustion, Shaanxi Provincial Institute of Traditional Chinese Medicine, Xi'an, China
- Changchun Ji
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Ji H, Lai D, Tou J. Neuroimmune regulation in Hirschsprung's disease associated enterocolitis. Front Immunol 2023; 14:1127375. [PMID: 37138874 PMCID: PMC10149972 DOI: 10.3389/fimmu.2023.1127375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/31/2023] [Indexed: 05/05/2023] Open
Abstract
Neuroimmune pathways are important part of the regulation of inflammatory response. Nerve cells regulate the functions of various immune cells through neurotransmitters, and then participate in the inflammatory immune response. Hirschsprung's disease (HD) is a congenital abnormal development of intestinal neurons, and Hirschsprung-associated enterocolitis (HAEC) is a common complication, which seriously affects the quality of life and even endangers the lives of children. Neuroimmune regulation mediates the occurrence and development of enteritis, which is an important mechanism. However, there is a lack of review on the role of Neuroimmune regulation in enterocolitis associated with Hirschsprung's disease. Therefore, this paper summarizes the characteristics of the interaction between intestinal nerve cells and immune cells, reviews the neuroimmune regulation mechanism of Hirschsprung's disease associated enterocolitis (HAEC), and looks forward to the potential clinical application value.
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Colonic mast cells trigger enteric neuronal death through the S100β/RAGE/NFκB pathway on Inflammatory Bowel Diseases. Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.111004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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The Enteric Glia and Its Modulation by the Endocannabinoid System, a New Target for Cannabinoid-Based Nutraceuticals? MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196773. [PMID: 36235308 PMCID: PMC9570628 DOI: 10.3390/molecules27196773] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 11/29/2022]
Abstract
The enteric nervous system (ENS) is a part of the autonomic nervous system that intrinsically innervates the gastrointestinal (GI) tract. Whereas enteric neurons have been deeply studied, the enteric glial cells (EGCs) have received less attention. However, these are immune-competent cells that contribute to the maintenance of the GI tract homeostasis through supporting epithelial integrity, providing neuroprotection, and influencing the GI motor function and sensation. The endogenous cannabinoid system (ECS) includes endogenous classical cannabinoids (anandamide, 2-arachidonoylglycerol), cannabinoid-like ligands (oleoylethanolamide (OEA) and palmitoylethanolamide (PEA)), enzymes involved in their metabolism (FAAH, MAGL, COX-2) and classical (CB1 and CB2) and non-classical (TRPV1, GPR55, PPAR) receptors. The ECS participates in many processes crucial for the proper functioning of the GI tract, in which the EGCs are involved. Thus, the modulation of the EGCs through the ECS might be beneficial to treat some dysfunctions of the GI tract. This review explores the role of EGCs and ECS on the GI tract functions and dysfunctions, and the current knowledge about how EGCs may be modulated by the ECS components, as possible new targets for cannabinoids and cannabinoid-like molecules, particularly those with potential nutraceutical use.
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Enteric nervous system and intestinal epithelial regulation of the gut-brain axis. J Allergy Clin Immunol 2022; 150:513-522. [PMID: 36075637 DOI: 10.1016/j.jaci.2022.07.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/18/2022] [Accepted: 07/22/2022] [Indexed: 12/18/2022]
Abstract
The gut-brain axis describes a bidirectional interplay within the enteric environment between the intestinal epithelium, the mucosal immune system, and the microbiota with the enteric nervous system. This interplay provides a link between exogenous environmental stimuli such as nutrient sensing, and nervous system function, as well as a mechanism of feedback from cortical and sensory centers of the brain to enteric activities. The intestinal epithelium is one of the human body's largest sources of hormones and neurotransmitters, which have critical effects on neuronal function. The influence of the gut microbiota on these processes appears to be profound; yet to date, it has been insufficiently explored. Disruption of the intestinal microbiota is linked not only to diseases in the gut but also to brain symptomatology, including neurodegenerative and behavioral disorders (Parkinson disease, Alzheimer disease, autism, and anxiety and/or depression). In this review we discuss the cellular wiring of the gut-brain axis, with a particular focus on the epithelial and neuronal interaction, the evidence that has led to our current understanding of the intestinal role in neurologic function, and future directions of research to unravel this important interaction in both health and allergic disease.
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Kaliannan K, Donnell SO, Murphy K, Stanton C, Kang C, Wang B, Li XY, Bhan AK, Kang JX. Decreased Tissue Omega-6/Omega-3 Fatty Acid Ratio Prevents Chemotherapy-Induced Gastrointestinal Toxicity Associated with Alterations of Gut Microbiome. Int J Mol Sci 2022; 23:ijms23105332. [PMID: 35628140 PMCID: PMC9140600 DOI: 10.3390/ijms23105332] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 02/04/2023] Open
Abstract
Gastrointestinal toxicity (GIT) is a debilitating side effect of Irinotecan (CPT-11) and limits its clinical utility. Gut dysbiosis has been shown to mediate this side effect of CPT-11 by increasing gut bacterial β-glucuronidase (GUSB) activity and impairing the intestinal mucosal barrier (IMB). We have recently shown the opposing effects of omega-6 (n-6) and omega-3 (n-3) polyunsaturated fatty acids (PUFA) on the gut microbiome. We hypothesized that elevated levels of tissue n-3 PUFA with a decreased n-6/n-3 PUFA ratio would reduce CPT-11-induced GIT and associated changes in the gut microbiome. Using a unique transgenic mouse (FAT-1) model combined with dietary supplementation experiments, we demonstrate that an elevated tissue n-3 PUFA status with a decreased n-6/n-3 PUFA ratio significantly reduces CPT-11-induced weight loss, bloody diarrhea, gut pathological changes, and mortality. Gut microbiome analysis by 16S rRNA gene sequencing and QIIME2 revealed that improvements in GIT were associated with the reduction in the CPT-11-induced increase in both GUSB-producing bacteria (e.g., Enterobacteriaceae) and GUSB enzyme activity, decrease in IMB-maintaining bacteria (e.g., Bifidobacterium), IMB dysfunction and systemic endotoxemia. These results uncover a host–microbiome interaction approach to the management of drug-induced gut toxicity. The prevention of CPT-11-induced gut microbiome changes by decreasing the tissue n-6/n-3 PUFA ratio could be a novel strategy to prevent chemotherapy-induced GIT.
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Affiliation(s)
- Kanakaraju Kaliannan
- Laboratory for Lipid Medicine and Technology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129, USA; (K.K.); (B.W.); (X.-Y.L.)
| | - Shane O. Donnell
- School of Microbiology, University College Cork, T12 K8AF Cork, Ireland; (S.O.D.); (C.S.)
- Teagasc Moorepark Food Research Centre, Fermoy, P61 C996 Co. Cork, Ireland
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland;
| | - Kiera Murphy
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland;
| | - Catherine Stanton
- School of Microbiology, University College Cork, T12 K8AF Cork, Ireland; (S.O.D.); (C.S.)
- Teagasc Moorepark Food Research Centre, Fermoy, P61 C996 Co. Cork, Ireland
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland;
| | - Chao Kang
- Department of Nutrition, The General Hospital of Western Theater Command, Chengdu 610000, China;
| | - Bin Wang
- Laboratory for Lipid Medicine and Technology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129, USA; (K.K.); (B.W.); (X.-Y.L.)
| | - Xiang-Yong Li
- Laboratory for Lipid Medicine and Technology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129, USA; (K.K.); (B.W.); (X.-Y.L.)
| | - Atul K. Bhan
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA;
| | - Jing X. Kang
- Laboratory for Lipid Medicine and Technology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129, USA; (K.K.); (B.W.); (X.-Y.L.)
- Correspondence: ; Tel.: +1-(617)-726-8509; Fax: +1-(617)-726-6144
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13
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Lucarini E, Micheli L, Pagnotta E, Matteo R, Parisio C, Toti A, Ferrara V, Ciampi C, Martelli A, Testai L, Calderone V, Savino M, Russo M, Pecchioni N, Ghelardini C, Di Cesare Mannelli L. Beneficial Effects of Eruca sativa Defatted Seed Meal on Visceral Pain and Intestinal Damage Resulting from Colitis in Rats. Foods 2022; 11:foods11040580. [PMID: 35206057 PMCID: PMC8870774 DOI: 10.3390/foods11040580] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 02/07/2023] Open
Abstract
Most therapies used in patients affected by inflammatory bowel diseases are ineffective in preventing the development of chronic visceral hypersensitivity, mainly due to inflammation-induced enteric neuroplasticity. Glucosinolates, secondary metabolites mainly of Brassicaceae with anti-inflammatory and neuroprotective properties, are effective in treating both neuropathic and arthritis pain through H2S release and Kv7 potassium channel activation. The aim of this work was to investigate the protective and anti-hyperalgesic efficacy of a defatted seed meal from Eruca sativa Mill. (Brassicaceae), rich in glucosinolates, in a rat model of colitis induced by 2,4-dinitrobenzene sulfonic acid (DNBS). The mechanisms of action were also investigated. Visceral pain was assessed by measuring the abdominal response to colorectal distension. Fifteen days after colitis induction, the acute administration of E. sativa defatted seed meal (0.1–1 g kg−1 p.o.) dose-dependently relieved pain. This effect was hampered by co-administering an H2S scavenger or a selective Kv7 blocker. Administering E. sativa (1 g kg−1) for 14 days, starting after DNBS injection, contributed to counteracting visceral pain persistence in the post-inflammatory phase of colitis by promoting colon healing from the damage and reducing enteric gliosis. E. sativa defatted seed meal might be employed as a nutraceutical tool for supporting abdominal pain relief in patients.
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Affiliation(s)
- Elena Lucarini
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
| | - Laura Micheli
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
| | - Eleonora Pagnotta
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, 40128 Bologna, Italy; (E.P.); (R.M.)
| | - Roberto Matteo
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, 40128 Bologna, Italy; (E.P.); (R.M.)
| | - Carmen Parisio
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
| | - Alessandra Toti
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
| | - Valentina Ferrara
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
| | - Clara Ciampi
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
| | - Alma Martelli
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.M.); (L.T.); (V.C.)
- Interdepartmental Research Centre Nutraceuticals and Food for Health (NUTRAFOOD), University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, 56126 Pisa, Italy
| | - Lara Testai
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.M.); (L.T.); (V.C.)
- Interdepartmental Research Centre Nutraceuticals and Food for Health (NUTRAFOOD), University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, 56126 Pisa, Italy
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (A.M.); (L.T.); (V.C.)
- Interdepartmental Research Centre Nutraceuticals and Food for Health (NUTRAFOOD), University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, 56126 Pisa, Italy
| | - Michele Savino
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, 71122 Foggia, Italy; (M.S.); (M.R.); (N.P.)
| | - Mario Russo
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, 71122 Foggia, Italy; (M.S.); (M.R.); (N.P.)
| | - Nicola Pecchioni
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, 71122 Foggia, Italy; (M.S.); (M.R.); (N.P.)
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (L.M.); (C.P.); (A.T.); (V.F.); (C.C.); (C.G.)
- Correspondence:
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14
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Abstract
Chemotherapy-induced gastrointestinal dysfunction is a common occurrence associated with many different classes of chemotherapeutic agents. Gastrointestinal toxicity includes mucositis, diarrhea, and constipation, and can often be a dose-limiting complication, induce cessation of treatment and could be life threatening. The gastrointestinal epithelium is rich in rapidly dividing cells and hence is a prime target for chemotherapeutic drugs. The incidence of gastrointestinal toxicity, including diarrhea and mucositis, is extremely high for a wide array of chemotherapeutic and radiation regimens. In fact, 60%-100% of patients on high-dose chemotherapy suffer from gastrointestinal side effects. Unfortunately, treatment options are limited, and therapy is often restricted to palliative care. Therefore, there is a great unmet therapeutic need for preventing and treating chemotherapy-induced gastrointestinal toxicities in the clinic. In this review, we discuss our current understanding of the mechanisms underlying chemotherapy-induced diarrhea and mucositis, and emerging mechanisms involving the enteric nervous system, smooth muscle cells and enteric immune cells. Recent evidence has also implicated gut dysbiosis in the pathogenesis of not only chemotherapy-induced mucositis and diarrhea, but also chemotherapy-induced peripheral neuropathy. Oxidative stress induced by chemotherapeutic agents results in post-translational modification of ion channels altering neuronal excitability. Thus, investigating how chemotherapy-induced changes in the gut- microbiome axis may lead to gut-related toxicities will be critical in the discovery of new drug targets for mitigating adverse gastrointestinal effects associated with chemotherapy treatment.
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Affiliation(s)
- Hamid I Akbarali
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States.
| | - Karan H Muchhala
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Donald K Jessup
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Stanley Cheatham
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
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15
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Bajic JE, Howarth GS, Mashtoub S, Whittaker AL, Bobrovskaya L, Hutchinson MR. Neuroimmunological complications arising from chemotherapy-induced gut toxicity and opioid exposure in female dark agouti rats. J Neurosci Res 2022; 100:237-250. [PMID: 34510524 DOI: 10.1002/jnr.24959] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 12/19/2022]
Abstract
Cancer patients may experience symptom clusters, including chemotherapy-induced (CI) gut toxicity (CIGT) and cognitive impairment. Analgesic selection for pain associated with CIGT is difficult as opioids induce glial reactivity and unwanted side effects. This study quantified central glial reactivity and proinflammatory effects in rats with CIGT using three mechanistically different analgesics. Regional adaptations were indicative of immune-to-brain signaling routes. Utilizing a 5-fluorouracil-induced GT (5IGT) rat model and analgesic intervention (carprofen (CAR), buprenorphine (BUP), and tramadol (TRAM)), spinal and brain neuroimmune modulation was examined via microglial, astrocyte, and proinflammatory (cluster of differentiation molecule 11b; CD11b, glial fibrillary associated protein; GFAP, and interleukin-1 beta; IL1β) reactivity marker expression changes by western blot analysis. 5IGT significantly increased thoracic GFAP (p < 0.05) and IL-1β (p < 0.0001) expression, CAR and BUP ameliorated these effects. BUP and TRAM with 5-FU synergistically increased hippocampal GFAP expression. CAR administered with 5IGT significantly elevated hippocampal and thoracic CD11b expression levels (p < 0.05). The neuroimmune responses observed in this study suggest activation of peripheral-to-central immune signaling pathways. We speculate that the opioid-induced hippocampal changes inferred a humorally mediated mechanism, whereas thoracic neuroimmune modifications indicated activation of an indirect neural route. Although TRAM ameliorated 5IGT-intestinal inflammation, this opioid presents complications relating to bodyweight and regional glial dysregulation (neuroinflammation) and may not be optimal in the management of pain associated with 5IGT. The chemotherapy-induced gut-derived neuroimmune consequences observed suggest a potential mechanistic contribution to central components of the cancer symptom cluster experience, while the opioid-related glial changes have implications for optimal pain management in this setting warranting further investigation.
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Affiliation(s)
- Juliana Esma Bajic
- Discipline of Physiology, Adelaide Medical School, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, Australia
- Australian Research Council Centre of Excellence for Nanoscale Biophotonics, The University of Adelaide, Adelaide, SA, Australia
| | - Gordon Stanley Howarth
- Discipline of Physiology, Adelaide Medical School, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, Australia
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA, Australia
- Gastroenterology Department, Women's and Children's Hospital, North Adelaide, SA, Australia
| | - Suzanne Mashtoub
- Discipline of Physiology, Adelaide Medical School, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, Australia
- Gastroenterology Department, Women's and Children's Hospital, North Adelaide, SA, Australia
- School of Medicine, University of Western Australia, Fiona Stanley Hospital, Murdoch, WA, Australia
| | | | - Larisa Bobrovskaya
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Mark Rowland Hutchinson
- Discipline of Physiology, Adelaide Medical School, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, Australia
- Australian Research Council Centre of Excellence for Nanoscale Biophotonics, The University of Adelaide, Adelaide, SA, Australia
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16
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Lucarini E, Seguella L, Vincenzi M, Parisio C, Micheli L, Toti A, Corpetti C, Del Re A, Squillace S, Maftei D, Lattanzi R, Ghelardini C, Di Cesare Mannelli L, Esposito G. Role of Enteric Glia as Bridging Element between Gut Inflammation and Visceral Pain Consolidation during Acute Colitis in Rats. Biomedicines 2021; 9:biomedicines9111671. [PMID: 34829900 PMCID: PMC8616000 DOI: 10.3390/biomedicines9111671] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/04/2021] [Accepted: 11/06/2021] [Indexed: 12/30/2022] Open
Abstract
Acute inflammation is particularly relevant in the pathogenesis of visceral hypersensitivity associated with inflammatory bowel diseases. Glia within the enteric nervous system, as well as within the central nervous system, contributes to neuroplasticity during inflammation, but whether enteric glia has the potential to modify visceral sensitivity following colitis is still unknown. This work aimed to investigate the occurrence of changes in the neuron–glial networks controlling visceral perception along the gut–brain axis during colitis, and to assess the effects of peripheral glial manipulation. Enteric glia activity was altered by the poison fluorocitrate (FC; 10 µmol kg−1 i.p.) before inducing colitis in animals (2,4-dinitrobenzenesulfonic acid, DNBS; 30 mg in 0.25 mL EtOH 50%), and visceral sensitivity, colon damage, and glia activation along the pain pathway were studied. FC injection significantly reduced the visceral hyperalgesia, the histological damage, and the immune activation caused by DNBS. Intestinal inflammation is associated with a parallel overexpression of TRPV1 and S100β along the gut–brain axis (colonic myenteric plexuses, dorsal root ganglion, and periaqueductal grey area). This effect was prevented by FC. Peripheral glia activity modulation emerges as a promising strategy for counteracting visceral pain induced by colitis.
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Affiliation(s)
- Elena Lucarini
- Department of Neuroscience, Psychology, Drug Research and Child Health, Neurofarba, Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (C.P.); (L.M.); (A.T.); (C.G.)
| | - Luisa Seguella
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, 00185 Rome, Italy; (L.S.); (M.V.); (C.C.); (A.D.R.); (D.M.); (R.L.); (G.E.)
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA
| | - Martina Vincenzi
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, 00185 Rome, Italy; (L.S.); (M.V.); (C.C.); (A.D.R.); (D.M.); (R.L.); (G.E.)
| | - Carmen Parisio
- Department of Neuroscience, Psychology, Drug Research and Child Health, Neurofarba, Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (C.P.); (L.M.); (A.T.); (C.G.)
| | - Laura Micheli
- Department of Neuroscience, Psychology, Drug Research and Child Health, Neurofarba, Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (C.P.); (L.M.); (A.T.); (C.G.)
| | - Alessandra Toti
- Department of Neuroscience, Psychology, Drug Research and Child Health, Neurofarba, Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (C.P.); (L.M.); (A.T.); (C.G.)
| | - Chiara Corpetti
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, 00185 Rome, Italy; (L.S.); (M.V.); (C.C.); (A.D.R.); (D.M.); (R.L.); (G.E.)
| | - Alessandro Del Re
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, 00185 Rome, Italy; (L.S.); (M.V.); (C.C.); (A.D.R.); (D.M.); (R.L.); (G.E.)
| | - Silvia Squillace
- Department of Pharmacology and Physiology and the Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, MO 63104, USA;
| | - Daniela Maftei
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, 00185 Rome, Italy; (L.S.); (M.V.); (C.C.); (A.D.R.); (D.M.); (R.L.); (G.E.)
| | - Roberta Lattanzi
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, 00185 Rome, Italy; (L.S.); (M.V.); (C.C.); (A.D.R.); (D.M.); (R.L.); (G.E.)
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health, Neurofarba, Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (C.P.); (L.M.); (A.T.); (C.G.)
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health, Neurofarba, Pharmacology and Toxicology Section, University of Florence, 50139 Florence, Italy; (E.L.); (C.P.); (L.M.); (A.T.); (C.G.)
- Correspondence:
| | - Giuseppe Esposito
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, 00185 Rome, Italy; (L.S.); (M.V.); (C.C.); (A.D.R.); (D.M.); (R.L.); (G.E.)
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17
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Meira de-Faria F, Casado-Bedmar M, Mårten Lindqvist C, Jones MP, Walter SA, Keita ÅV. Altered interaction between enteric glial cells and mast cells in the colon of women with irritable bowel syndrome. Neurogastroenterol Motil 2021; 33:e14130. [PMID: 33797165 DOI: 10.1111/nmo.14130] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/22/2021] [Accepted: 03/09/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Enteric glial cells (EGC) and mast cells (MC) are intimately associated with gastrointestinal physiological functions. We aimed to investigate EGC-MC interaction in irritable bowel syndrome (IBS), a gut-brain disorder linked to increased intestinal permeability, and MC. METHODS Parallel approaches were used to quantify EGC markers in colonic biopsies from healthy controls (HC) and patients with IBS. Data were correlated with MC, vasoactive intestinal polypeptide (VIP) and VIP receptors (VPAC1/VPAC2) expressions, and bacterial translocation through biopsies mounted in Ussing chambers. In addition, we investigated the effects of EGC mediators on colonic permeability and the pharmacological-induced responses of EGC and MC cell lines. KEY RESULTS Immunofluorescence of IBS colonic mucosa, as well as Western blotting and ELISA of IBS biopsy lysates, revealed increased glial fibrillary intermediate filament (GFAP) expression, indicating EGC activation. Mucosal GFAP correlated with increased MC and VPAC1+ MC numbers and decreased VIP+ MC, which seemed to control bacterial translocation in HC. In the contrary, EGC activation in IBS correlated with less MC and VPAC1+ MC numbers, and more VIP+ MC. In vitro, MC and EGC cell lines showed intracellular calcium responses to each other's mediators. Furthermore, EGC mediators prevented VIP-induced MC degranulation, while MC mediators induced a reactive EGC phenotype. In Ussing chambers, EGC mediators decreased paracellular passage through healthy colonic biopsies. CONCLUSIONS & INFERENCES Findings suggest the involvement of EGC and MC in the control of barrier function in the human colon and indicate a potential EGC-MC interaction that seems altered in IBS, with detrimental consequences to colonic permeability. Altogether, results suggest that imbalanced EGC-MC communication contributes to the pathophysiology of IBS.
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Affiliation(s)
- Felipe Meira de-Faria
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Maite Casado-Bedmar
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Carl Mårten Lindqvist
- Department of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | | | - Susanna A Walter
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.,Department of Gastroenterology, Linköping University, Linköping, Sweden
| | - Åsa V Keita
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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18
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Costa DVS, Moura-Neto V, Bolick DT, Guerrant RL, Fawad JA, Shin JH, Medeiros PHQS, Ledwaba SE, Kolling GL, Martins CS, Venkataraman V, Warren CA, Brito GAC. S100B Inhibition Attenuates Intestinal Damage and Diarrhea Severity During Clostridioides difficile Infection by Modulating Inflammatory Response. Front Cell Infect Microbiol 2021; 11:739874. [PMID: 34568098 PMCID: PMC8461106 DOI: 10.3389/fcimb.2021.739874] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/11/2021] [Indexed: 12/12/2022] Open
Abstract
The involvement of the enteric nervous system, which is a source of S100B, in Clostridioides difficile (C. difficile) infection (CDI) is poorly understood although intestinal motility dysfunctions are known to occur following infection. Here, we investigated the role of S100B in CDI and examined the S100B signaling pathways activated in C. difficile toxin A (TcdA)- and B (TcdB)-induced enteric glial cell (EGC) inflammatory response. The expression of S100B was measured in colon tissues and fecal samples of patients with and without CDI, as well as in colon tissues from C. difficile-infected mice. To investigate the role of S100B signaling in IL-6 expression induced by TcdA and TcdB, rat EGCs were used. Increased S100B was found in colonic biopsies from patients with CDI and colon tissues from C. difficile-infected mice. Patients with CDI-promoted diarrhea exhibited higher levels of fecal S100B compared to non-CDI cases. Inhibition of S100B by pentamidine reduced the synthesis of IL-1β, IL-18, IL-6, GMCSF, TNF-α, IL-17, IL-23, and IL-2 and downregulated a variety of NFκB-related genes, increased the transcription (SOCS2 and Bcl-2) of protective mediators, reduced neutrophil recruitment, and ameliorated intestinal damage and diarrhea severity in mice. In EGCs, TcdA and TcdB upregulated S100B-mediated IL-6 expression via activation of RAGE/PI3K/NFκB. Thus, CDI appears to upregulate colonic S100B signaling in EGCs, which in turn augment inflammatory response. Inhibition of S100B activity attenuates the intestinal injury and diarrhea caused by C. difficile toxins. Our findings provide new insight into the role of S100B in CDI pathogenesis and opens novel avenues for therapeutic interventions.
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Affiliation(s)
- Deiziane V S Costa
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.,Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States.,Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Vivaldo Moura-Neto
- Paulo Niemeyer Brain Institute, Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, Brazil
| | - David T Bolick
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States
| | - Richard L Guerrant
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States
| | - Jibraan A Fawad
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States
| | - Jae H Shin
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States
| | - Pedro H Q S Medeiros
- Department of Microbiology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Solanka E Ledwaba
- Department of Biochemistry and Microbiology, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, South Africa
| | - Glynis L Kolling
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States
| | - Conceição S Martins
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Venkat Venkataraman
- Department of Cell Biology and Neuroscience, Rowan University School of Osteopathic Medicine, Stratford, NJ, United States.,Department of Rehabilitation Medicine, Rowan University School of Osteopathic Medicine, Stratford, NJ, United States
| | - Cirle A Warren
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States
| | - Gerly A C Brito
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.,Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
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Seguella L, Gulbransen BD. Enteric glial biology, intercellular signalling and roles in gastrointestinal disease. Nat Rev Gastroenterol Hepatol 2021; 18:571-587. [PMID: 33731961 PMCID: PMC8324524 DOI: 10.1038/s41575-021-00423-7] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/28/2021] [Indexed: 02/07/2023]
Abstract
One of the most transformative developments in neurogastroenterology is the realization that many functions normally attributed to enteric neurons involve interactions with enteric glial cells: a large population of peripheral neuroglia associated with enteric neurons throughout the gastrointestinal tract. The notion that glial cells function solely as passive support cells has been refuted by compelling evidence that demonstrates that enteric glia are important homeostatic cells of the intestine. Active signalling mechanisms between enteric glia and neurons modulate gastrointestinal reflexes and, in certain circumstances, function to drive neuroinflammatory processes that lead to long-term dysfunction. Bidirectional communication between enteric glia and immune cells contributes to gastrointestinal immune homeostasis, and crosstalk between enteric glia and cancer stem cells regulates tumorigenesis. These neuromodulatory and immunomodulatory roles place enteric glia in a unique position to regulate diverse gastrointestinal disease processes. In this Review, we discuss current concepts regarding enteric glial development, heterogeneity and functional roles in gastrointestinal pathophysiology and pathophysiology, with a focus on interactions with neurons and immune cells. We also present a working model to differentiate glial states based on normal function and disease-induced dysfunctions.
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Affiliation(s)
- Luisa Seguella
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome, Italy
- Department of Physiology, Neuroscience Program, Michigan State University, East Lansing, MI, USA
| | - Brian D Gulbransen
- Department of Physiology, Neuroscience Program, Michigan State University, East Lansing, MI, USA.
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20
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You XY, Zhang HY, Han X, Wang F, Zhuang PW, Zhang YJ. Intestinal Mucosal Barrier Is Regulated by Intestinal Tract Neuro-Immune Interplay. Front Pharmacol 2021; 12:659716. [PMID: 34135754 PMCID: PMC8201607 DOI: 10.3389/fphar.2021.659716] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/30/2021] [Indexed: 12/11/2022] Open
Abstract
Inflammatory bowel disease, irritable bowel syndrome and severe central nervous system injury can lead to intestinal mucosal barrier damage, which can cause endotoxin/enterobacteria translocation to induce infection and is closely related to the progression of metabolic diseases, cardiovascular and cerebrovascular diseases, tumors and other diseases. Hence, repairing the intestinal barrier represents a potential therapeutic target for many diseases. Enteral afferent nerves, efferent nerves and the intrinsic enteric nervous system (ENS) play key roles in regulating intestinal physiological homeostasis and coping with acute stress. Furthermore, innervation actively regulates immunity and induces inherent and adaptive immune responses through complex processes, such as secreting neurotransmitters or hormones and regulating their corresponding receptors. In addition, intestinal microorganisms and their metabolites play a regulatory role in the intestinal mucosal barrier. This paper primarily discusses the interactions between norepinephrine and β-adrenergic receptors, cholinergic anti-inflammatory pathways, nociceptive receptors, complex ENS networks, gut microbes and various immune cells with their secreted cytokines to summarize the key roles in regulating intestinal inflammation and improving mucosal barrier function.
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Affiliation(s)
- Xin-Yu You
- Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Han-Yu Zhang
- Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xu Han
- Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fang Wang
- Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Peng-Wei Zhuang
- Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan-Jun Zhang
- Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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21
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Kovaleski RF, Callahan JW, Chazalon M, Wokosin DL, Baufreton J, Bevan MD. Dysregulation of external globus pallidus-subthalamic nucleus network dynamics in parkinsonian mice during cortical slow-wave activity and activation. J Physiol 2020; 598:1897-1927. [PMID: 32112413 DOI: 10.1113/jp279232] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 02/24/2020] [Indexed: 12/12/2022] Open
Abstract
KEY POINTS Reciprocally connected GABAergic external globus pallidus (GPe) and glutamatergic subthalamic nucleus (STN) neurons form a key network within the basal ganglia. In Parkinson's disease and its models, abnormal rates and patterns of GPe-STN network activity are linked to motor dysfunction. Using cell class-specific optogenetic identification and inhibition during cortical slow-wave activity and activation, we report that, in dopamine-depleted mice, (1) D2 dopamine receptor expressing striatal projection neurons (D2-SPNs) discharge at higher rates, especially during cortical activation, (2) prototypic parvalbumin-expressing GPe neurons are excessively patterned by D2-SPNs even though their autonomous activity is upregulated, (3) despite being disinhibited, STN neurons are not hyperactive, and (4) STN activity opposes striatopallidal patterning. These data argue that in parkinsonian mice abnormal, temporally offset prototypic GPe and STN neuron firing results in part from increased striatopallidal transmission and that compensatory plasticity limits STN hyperactivity and cortical entrainment. ABSTRACT Reciprocally connected GABAergic external globus pallidus (GPe) and glutamatergic subthalamic nucleus (STN) neurons form a key, centrally positioned network within the basal ganglia. In Parkinson's disease and its models, abnormal rates and patterns of GPe-STN network activity are linked to motor dysfunction. Following the loss of dopamine, the activities of GPe and STN neurons become more temporally offset and strongly correlated with cortical oscillations below 40 Hz. Previous studies utilized cortical slow-wave activity and/or cortical activation (ACT) under anaesthesia to probe the mechanisms underlying the normal and pathological patterning of basal ganglia activity. Here, we combined this approach with in vivo optogenetic inhibition to identify and interrupt the activity of D2 dopamine receptor-expressing striatal projection neurons (D2-SPNs), parvalbumin-expressing prototypic GPe (PV GPe) neurons, and STN neurons. We found that, in dopamine-depleted mice, (1) the firing rate of D2-SPNs was elevated, especially during cortical ACT, (2) abnormal phasic suppression of PV GPe neuron activity was ameliorated by optogenetic inhibition of coincident D2-SPN activity, (3) autonomous PV GPe neuron firing ex vivo was upregulated, presumably through homeostatic mechanisms, (4) STN neurons were not hyperactive, despite being disinhibited, (5) optogenetic inhibition of the STN exacerbated abnormal GPe activity, and (6) exaggerated beta band activity was not present in the cortex or GPe-STN network. Together with recent studies, these data suggest that in dopamine-depleted mice abnormally correlated and temporally offset PV GPe and STN neuron activity is generated in part by elevated striatopallidal transmission, while compensatory plasticity prevents STN hyperactivity and limits cortical entrainment.
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Affiliation(s)
- Ryan F Kovaleski
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Joshua W Callahan
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Marine Chazalon
- Université de Bordeaux & CNRS UMR 5293, Institut des Maladies Neurodégénératives, Bordeaux, F-33000, France
| | - David L Wokosin
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Jérôme Baufreton
- Université de Bordeaux & CNRS UMR 5293, Institut des Maladies Neurodégénératives, Bordeaux, F-33000, France
| | - Mark D Bevan
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
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22
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Animal models of mucositis: critical tools for advancing pathobiological understanding and identifying therapeutic targets. Curr Opin Support Palliat Care 2020; 13:119-133. [PMID: 30925531 DOI: 10.1097/spc.0000000000000421] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Mucositis remains a prevalent, yet poorly managed side effect of anticancer therapies. Mucositis affecting both the oral cavity and gastrointestinal tract predispose to infection and require extensive supportive management, contributing to the growing economic burden associated with cancer care. Animal models remain a critical aspect of mucositis research, providing novel insights into its pathogenesis and revealing therapeutic targets. The current review aims to provide a comprehensive overview of the current animal models used in mucositis research. RECENT FINDINGS A wide variety of animal models of mucositis exist highlighting the highly heterogenous landscape of supportive oncology and the unique cytotoxic mechanisms of different anticancer agents. Golden Syrian hamsters remain the gold-standard species for investigation of oral mucositis induced by single dose and fractionated radiation as well as chemoradiation. There is no universally accepted gold-standard model for the study of gastrointestinal mucositis, with rats, mice, pigs and dogs all offering unique perspectives on its pathobiology. SUMMARY Animal models are a critical aspect of mucositis research, providing unprecedent insight into the pathobiology of mucositis. Introduction of tumour-bearing models, cyclic dosing scheduled, concomitant agents and genetically modified animals have been integral in refining our understanding of mucositis.
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Grundmann D, Loris E, Maas-Omlor S, Huang W, Scheller A, Kirchhoff F, Schäfer KH. Enteric Glia: S100, GFAP, and Beyond. Anat Rec (Hoboken) 2019; 302:1333-1344. [PMID: 30951262 DOI: 10.1002/ar.24128] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 02/10/2019] [Accepted: 02/18/2019] [Indexed: 12/15/2022]
Abstract
Since several years, the enteric nervous system (ENS) is getting more and more in the focus of gastrointestinal research. While the main interest was credited for years to the enteric neurons and their functional properties, less attention has been paid on the enteric glial cells (EGCs). Although the similarity of EGCs to central nervous system (CNS) astrocytes has been demonstrated a long time ago, EGCs were investigated in more detail only recently. Similar to the CNS, there is not "the" EGC, but also a broad range of diversity. Based on morphology and protein expression, such as glial fibrillary acidic protein (GFAP), S100, or Proteolipid-protein-1 (PLP1), several distinct glial types can be differentiated. Their heterogeneity in morphology, localization, and transcription as well as interaction with surrounding cells indicate versatile functional properties of these cells for gut function in health and disease. Although NG2 is found in a subset of CNS glial cells, it did not colocalize with the glial marker S100 or GFAP in the ENS. Instead, it in part colocalize with PDGFRα, as it does in the CNS, which do stain fibroblast-like cells in the gastrointestinal tract. Moreover, there seem to be species dependent differences. While GFAP is always found in the rodent ENS, this is completely different for the human gut. Only the compromised human ENS shows a significant amount of GFAP-positive glial cells. So, in general we can conclude that the EGC population is species specific and as complex as CNS glia. Anat Rec, 302:1333-1344, 2019. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- David Grundmann
- Department of Biotechnology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Eva Loris
- Department of Biotechnology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Silke Maas-Omlor
- Department of Biotechnology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Wenhui Huang
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
| | - Anja Scheller
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
| | - Frank Kirchhoff
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
| | - Karl-Herbert Schäfer
- Department of Biotechnology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany.,Department of Pediatric Surgery, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
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Protective Effect of Cashew Gum (Anacardium occidentale L.) on 5-Fluorouracil-Induced Intestinal Mucositis. Pharmaceuticals (Basel) 2019; 12:ph12020051. [PMID: 30987265 PMCID: PMC6630449 DOI: 10.3390/ph12020051] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/27/2019] [Accepted: 03/15/2019] [Indexed: 12/12/2022] Open
Abstract
Intestinal mucositis is a common complication associated with 5-fluorouracil (5-FU), a chemotherapeutic agent used for cancer treatment. Cashew gum (CG) has been reported as a potent anti-inflammatory agent. In the present study, we aimed to evaluate the effect of CG extracted from the exudate of Anacardium occidentale L. on experimental intestinal mucositis induced by 5-FU. Swiss mice were randomly divided into seven groups: Saline, 5-FU, CG 30, CG 60, CG 90, Celecoxib (CLX), and CLX + CG 90 groups. The weight of mice was measured daily. After treatment, the animals were euthanized and segments of the small intestine were collected to evaluate histopathological alterations (morphometric analysis), levels of malondialdehyde (MDA), myeloperoxidase (MPO), and glutathione (GSH), and immunohistochemical analysis of interleukin 1 beta (IL-1β) and cyclooxygenase-2 (COX-2). 5-FU induced intense weight loss and reduction in villus height compared to the saline group. CG 90 prevented 5-FU-induced histopathological changes and decreased oxidative stress through decrease of MDA levels and increase of GSH concentration. CG attenuated inflammatory process by decreasing MPO activity, intestinal mastocytosis, and COX-2 expression. Our findings suggest that CG at a concentration of 90 mg/kg reverses the effects of 5-FU-induced intestinal mucositis.
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5-Fluorouracil Induces Enteric Neuron Death and Glial Activation During Intestinal Mucositis via a S100B-RAGE-NFκB-Dependent Pathway. Sci Rep 2019; 9:665. [PMID: 30679569 PMCID: PMC6345953 DOI: 10.1038/s41598-018-36878-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 11/25/2018] [Indexed: 02/07/2023] Open
Abstract
5-Fluorouracil (5-FU) is an anticancer agent whose main side effects include intestinal mucositis associated with intestinal motility alterations maybe due to an effect on the enteric nervous system (ENS), but the underlying mechanism remains unclear. In this report, we used an animal model to investigate the participation of the S100B/RAGE/NFκB pathway in intestinal mucositis and enteric neurotoxicity caused by 5-FU (450 mg/kg, IP, single dose). 5-FU induced intestinal damage observed by shortened villi, loss of crypt architecture and intense inflammatory cell infiltrate as well as increased GFAP and S100B co-expression and decreased HuC/D protein expression in the small intestine. Furthermore, 5-FU increased RAGE and NFκB NLS immunostaining in enteric neurons, associated with a significant increase in the nitrite/nitrate, IL-6 and TNF-α levels, iNOS expression and MDA accumulation in the small intestine. We provide evidence that 5-FU induces reactive gliosis and reduction of enteric neurons in a S100B/RAGE/NFκB-dependent manner, since pentamidine, a S100B inhibitor, prevented 5-FU-induced neuronal loss, enteric glia activation, intestinal inflammation, oxidative stress and histological injury.
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Rtibi K, Selmi S, Grami D, Sebai H, Amri M, Marzouki L. Irinotecan chemotherapy-induced intestinal oxidative stress: Underlying causes of disturbed mucosal water and electrolyte transport. ACTA ACUST UNITED AC 2017; 24:275-279. [PMID: 28801072 DOI: 10.1016/j.pathophys.2017.07.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/13/2017] [Accepted: 07/14/2017] [Indexed: 12/20/2022]
Abstract
Irinotecan, a chemotherapy drug, can cause acute diarrhea immediately after administration. Hence, the present study was designed to investigate the gastrointestinal (GI) disturbances after an intraperitoneal (IP) administration of irinotecan in rats.Twenty Wistar rats were separated into two groups of ten. Group A was considered as a control group (NaCl, 0.9%). Group B was treated with irinotecan at a single dose of 200mgkg-1. The rats were observed for defecation. For the enteropooling test, the animals were sacrificed by decapitation 1h post-treatment. The small intestine was excised and the fluid was milked into a graduated tube and the volume was measured. After centrifugation of intraluminal liquid, the electrolyte concentrations in the supernatants were measured by flame photometry. Oxidative stress parameters and intracellular mediators as well as the MPO activity were determined in intestinal mucosa by colorimetric methods Our result indicated that irinotecan produces an intestinal fluid accumulation and electrolyte transport disorders. These effects were associated with augmented intestinal MPO activity and oxidative damage such as an elevation of MDA production and a depletion of enzymatic and non-enzymatic antioxidants. More than that, drug administration provoked intracellular mediator disturbances such as a free iron, H2O2 and calcium levels. In conclusion, the data suggest that irinotecan caused a gastrointestinal stress via oxidative stress-induced disturbances in water and electrolyte transport in the intestinal mucosa in rats.
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Affiliation(s)
- Kaïs Rtibi
- Laboratoire de Physiologie Fonctionnelle et Valorisation des Bioressources-Institut Supérieur de Biotechnologie de Béja, B.P. 382, 09000 Béja, Tunisia; Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis, 2092 Tunis, Tunisia.
| | - Slimen Selmi
- Laboratoire de Physiologie Fonctionnelle et Valorisation des Bioressources-Institut Supérieur de Biotechnologie de Béja, B.P. 382, 09000 Béja, Tunisia
| | - Dhekra Grami
- Laboratoire de Physiologie Fonctionnelle et Valorisation des Bioressources-Institut Supérieur de Biotechnologie de Béja, B.P. 382, 09000 Béja, Tunisia
| | - Hichem Sebai
- Laboratoire de Physiologie Fonctionnelle et Valorisation des Bioressources-Institut Supérieur de Biotechnologie de Béja, B.P. 382, 09000 Béja, Tunisia
| | - Mohamed Amri
- Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis, 2092 Tunis, Tunisia
| | - Lamjed Marzouki
- Laboratoire de Physiologie Fonctionnelle et Valorisation des Bioressources-Institut Supérieur de Biotechnologie de Béja, B.P. 382, 09000 Béja, Tunisia; Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis, 2092 Tunis, Tunisia
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