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Chen Y, Feng S, Li Y, Zhang C, Chao G, Zhang S. Gut microbiota and intestinal immunity-A crosstalk in irritable bowel syndrome. Immunology 2024; 172:1-20. [PMID: 38174581 DOI: 10.1111/imm.13749] [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: 08/21/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024] Open
Abstract
Irritable bowel syndrome (IBS), one of the most prevalent functional gastrointestinal disorders, is characterized by recurrent abdominal pain and abnormal defecation habits, resulting in a severe healthcare burden worldwide. The pathophysiological mechanisms of IBS are multi-factorially involved, including food antigens, visceral hypersensitivity reactions, and the brain-gut axis. Numerous studies have found that gut microbiota and intestinal mucosal immunity play an important role in the development of IBS in crosstalk with multiple mechanisms. Therefore, based on existing evidence, this paper elaborates that the damage and activation of intestinal mucosal immunity and the disturbance of gut microbiota are closely related to the progression of IBS. Combined with the application prospect, it also provides references for further in-depth exploration and clinical practice.
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Affiliation(s)
- Yuxuan Chen
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shuyan Feng
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ying Li
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chi Zhang
- Sir Run Run Shaw Hospital of Zhejiang University, Hangzhou, China
| | - Guanqun Chao
- Department of General Practice, Sir Run Run Shaw Hospital of Zhejiang University, Hangzhou, China
| | - Shuo Zhang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Fiorani M, Del Vecchio LE, Dargenio P, Kaitsas F, Rozera T, Porcari S, Gasbarrini A, Cammarota G, Ianiro G. Histamine-producing bacteria and their role in gastrointestinal disorders. Expert Rev Gastroenterol Hepatol 2023; 17:709-718. [PMID: 37394958 DOI: 10.1080/17474124.2023.2230865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 06/22/2023] [Indexed: 07/04/2023]
Abstract
INTRODUCTION Gut microbiota produces thousands of metabolites, which have a huge impact on the host health. Specific microbial strains are able to synthesize histamine, a molecule with a crucial role in many physiologic and pathologic mechanisms of the host. This function is mediated by the histidine decarboxylase enzyme (HDC) that converts the amino acid histidine to histamine. AREAS COVERED This review summarizes the emerging data on histamine production by gut microbiota, and the effect of bacterial-derived histamine in different clinical contexts, including cancer, irritable bowel syndrome, and other gastrointestinal and extraintestinal pathologies. This review will also outline the impact of histamine on the immune system and the effect of probiotics that can secrete histamine. Search methodology: we searched the literature on PubMed up to February 2023. EXPERT OPINION The potential of modulating gut microbiota to influence histamine production is a promising area of research, and although our knowledge of histamine-secreting bacteria is still limited, recent advances are exploring their diagnostic and therapeutical potential. Diet, probiotics, and pharmacological treatments directed to the modulation of histamine-secreting bacteria may in the future potentially be employed in the prevention and management of several gastrointestinal and extraintestinal disorders.
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Affiliation(s)
- Marcello Fiorani
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Livio Enrico Del Vecchio
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Pasquale Dargenio
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Kaitsas
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Tommaso Rozera
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Serena Porcari
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Antonio Gasbarrini
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Giovanni Cammarota
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Gianluca Ianiro
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
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Liang H, Li L, Huang L, Lu T, Luo Q, Mao Y, Liu H. HLA-A and HLA-B genes are involved in the pathogenesis of IBS. Medicine (Baltimore) 2023; 102:e33135. [PMID: 36862897 PMCID: PMC9981385 DOI: 10.1097/md.0000000000033135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
Irritable bowel syndrome (IBS) is the most common functional gastrointestinal disorder. The pathogenesis of IBS has not yet been fully elucidated, and the relationship between human leukocyte antigen (HLA) class I molecules and IBS is not clear. The present case-control study investigated the correlation between HLA-A and HLA-B genes and IBS. Peripheral blood samples were collected from 102 IBS patients and 108 healthy volunteers at Nanning First People's Hospital. DNA was extracted using a routine procedure, and HLA-A and HLA-B gene polymorphisms were identified by polymerase chain reaction with sequence-specific primers to determine the genotype and distribution frequency of HLA-A and HLA-B in IBS patients and healthy controls. Susceptibility and protective genes for IBS were identified using univariate and multivariate analyses. The frequency of HLA-A11 gene expression in the IBS group was significantly higher than that in the healthy control group, while the frequencies of HLA-A24, 26, and 33 gene expression were significantly higher in the healthy control group than in the IBS group (all P < .05). The frequencies of HLA-B56 and 75 (15) gene expression in the IBS group were significantly higher than those in the healthy control group, while the frequencies of HLA-B46 and 48 gene expression were significantly higher in the healthy control group than in the IBS group (all P < .05). Genes that may be related to the prevalence of IBS were included in the multivariate logistic regression, and the results suggested that the HLA-B75 (15) gene is a susceptibility gene for IBS (P = .031, odds ratio [OR] = 2.625, 95% confidence interval [CI]: 1.093-6.302), while the HLA-A24 (P = .003, OR = 0.308, 95% CI: 0.142-0.666), A26 (P = .009, OR = 0.162, 95% CI: 0.042-0.629), A33 (P = .012, OR = 0.173, 95% CI: 0.044-0.679), and B48 (P = .008, OR = 0.051, 95% CI: 0.006-0.459) genes are protective genes for IBS.
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Affiliation(s)
- Huiping Liang
- Department of Medicine, Guangxi Medical College, Nanning, China
| | - Li Li
- Department of Medicine, Guangxi Medical College, Nanning, China
| | - Lan Huang
- Dean’s Office of Guangxi Medical College, Nanning, China
| | - Tingting Lu
- Department of Medical Technology, Guangxi Medical College, Nanning, China
| | - Qi Luo
- The First People’s Hospital of Nanning, Nanning, China
| | - Yanning Mao
- The First People’s Hospital of Nanning, Nanning, China
| | - Huaying Liu
- Department of Medicine, Guangxi Medical College, Nanning, China
- *Correspondence: Huaying Liu, Department of Medicine, Guangxi Medical College, No 8 Kunlun Road, Nanning, GuangXi 530023, China (e-mail: )
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Moshiree B, Heidelbaugh JJ, Sayuk GS. A Narrative Review of Irritable Bowel Syndrome with Diarrhea: A Primer for Primary Care Providers. Adv Ther 2022; 39:4003-4020. [PMID: 35869354 PMCID: PMC9402521 DOI: 10.1007/s12325-022-02224-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 06/14/2022] [Indexed: 12/09/2022]
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Burns GL, Talley NJ, Keely S. Immune responses in the irritable bowel syndromes: time to consider the small intestine. BMC Med 2022; 20:115. [PMID: 35354471 PMCID: PMC8969236 DOI: 10.1186/s12916-022-02301-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 02/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is considered a disorder of gut-brain interaction (DGBI), presenting as chronic abdominal pain and altered defaecation. Symptoms are often food related. Much work in the field has focused on identifying physiological, immune and microbial abnormalities in the colon of patients; however, evidence of small intestinal immune activation and microbial imbalance has been reported in small studies. The significance of such findings has been largely underappreciated despite a growing body of work implicating small intestinal homeostatic imbalance in the pathogenesis of DGBIs. MAIN TEXT Small intestinal mechanosensation is a characteristic feature of IBS. Furthermore, altered small intestinal barrier functions have been demonstrated in IBS patients with the diarrhoea-predominant subtype. Small intestinal bacterial overgrowth and increased populations of small intestinal mast cells are frequently associated with IBS, implicating microbial imbalance and low-grade inflammation in the pathogenesis of IBS. Furthermore, reports of localised food hypersensitivity responses in IBS patients implicate the small intestine as the site of immune-microbial-food interactions. CONCLUSIONS Given the association of IBS symptoms with food intake in a large proportion of patients and the emerging evidence of immune activation in these patients, the current literature suggests the pathogenesis of IBS is not limited to the colon but rather may involve dysfunction of the entire intestinal tract. It remains unclear if regional variation in IBS pathology explains the various symptom phenotypes and further work should consider the intestinal tract as a whole to answer this question.
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Affiliation(s)
- Grace L Burns
- NHMRC Centre of Research Excellence in Digestive Health, The University of Newcastle, Callaghan, New South Wales, Australia.,College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, New South Wales, Australia.,Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Nicholas J Talley
- NHMRC Centre of Research Excellence in Digestive Health, The University of Newcastle, Callaghan, New South Wales, Australia.,College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, New South Wales, Australia.,Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Simon Keely
- NHMRC Centre of Research Excellence in Digestive Health, The University of Newcastle, Callaghan, New South Wales, Australia. .,College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, New South Wales, Australia. .,Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia.
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Yoshimoto T, Oshima T, Huang X, Tomita T, Fukui H, Miwa H. Microinflammation in the intestinal mucosa and symptoms of irritable bowel syndrome. J Gastroenterol 2022; 57:62-69. [PMID: 34854984 DOI: 10.1007/s00535-021-01838-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 11/21/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Potential etiological mechanisms of irritable bowel syndrome (IBS) have been reported, and emerging data suggest that immune activation is present in a major subset of IBS, especially in those with diarrhea. Intestinal mucosal mast cell and intraepithelial lymphocyte (IEL) infiltration and related factors were examined in patients with IBS. In addition, the correlations of symptoms and micro-inflammation were assessed. METHODS Intestinal biopsy specimens were obtained from patients with IBS and controls. Mast cells and IELs were stained with specific antibodies. The mRNA levels of cytokines and chemokines were assessed by quantitative reverse transcription polymerase chain reaction. RESULTS Infiltration of mast cells in the duodenum was significantly higher in IBS patients than in control subjects. The infiltration of IELs was higher in the duodenum and terminal ileum of IBS patients compared to the control subjects. The numbers of duodenal and ileal IELs were significantly correlated. The number of IELs but not mast cells in the duodenum and terminal ileum was significantly correlated with diarrhea frequency in control subjects and IBS patients. The expression level of the chemotactic chemokine CXCL11 was significantly higher in the duodenum of IBS patients. CONCLUSION Duodenal mast cells and IELs were increased in IBS patients. In addition, a positive correlation was found between the number of duodenal and ileal IELs and the frequency of diarrhea. Given that the present study was strictly observational, further studies are needed to clarify the pathophysiological functions associated with micro-inflammation in IBS.
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Affiliation(s)
- Takanori Yoshimoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Tadayuki Oshima
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
| | - Xinyi Huang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Toshihiko Tomita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Hirokazu Fukui
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Hiroto Miwa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
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