1
|
Lu W, Aihaiti A, Abudukeranmu P, Liu Y, Gao H. Unravelling the role of intratumoral bacteria in digestive system cancers: current insights and future perspectives. J Transl Med 2024; 22:545. [PMID: 38849871 PMCID: PMC11157735 DOI: 10.1186/s12967-024-05320-6] [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: 04/07/2024] [Accepted: 05/18/2024] [Indexed: 06/09/2024] Open
Abstract
Recently, research on the human microbiome, especially concerning the bacteria within the digestive system, has substantially advanced. This exploration has unveiled a complex interplay between microbiota and health, particularly in the context of disease. Evidence suggests that the gut microbiome plays vital roles in digestion, immunity and the synthesis of vitamins and neurotransmitters, highlighting its significance in maintaining overall health. Conversely, disruptions in these microbial communities, termed dysbiosis, have been linked to the pathogenesis of various diseases, including digestive system cancers. These bacteria can influence cancer progression through mechanisms such as DNA damage, modulation of the tumour microenvironment, and effects on the host's immune response. Changes in the composition and function within the tumours can also impact inflammation, immune response and cancer therapy effectiveness. These findings offer promising avenues for the clinical application of intratumoral bacteria for digestive system cancer treatment, including the potential use of microbial markers for early cancer detection, prognostication and the development of microbiome-targeted therapies to enhance treatment outcomes. This review aims to provide a comprehensive overview of the pivotal roles played by gut microbiome bacteria in the development of digestive system cancers. Additionally, we delve into the specific contributions of intratumoral bacteria to digestive system cancer development, elucidating potential mechanisms and clinical implications. Ultimately, this review underscores the intricate interplay between intratumoral bacteria and digestive system cancers, underscoring the pivotal role of microbiome research in transforming diagnostic, prognostic and therapeutic paradigms for digestive system cancers.
Collapse
Affiliation(s)
- Weiqin Lu
- General Surgery, Cancer Center, Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | | | | | - Yajun Liu
- Aksu First People's Hospital, Xinjiang, China
| | - Huihui Gao
- Cancer Center, Department of Hospital Infection Management and Preventive Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China.
| |
Collapse
|
2
|
Wei YF, Xie SA, Zhang ST. Current research on the interaction between Helicobacter pylori and macrophages. Mol Biol Rep 2024; 51:497. [PMID: 38598010 DOI: 10.1007/s11033-024-09395-8] [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: 11/24/2023] [Accepted: 02/28/2024] [Indexed: 04/11/2024]
Abstract
Helicobacter pylori (H. pylori) is a gram-negative bacteria with a worldwide infection rate of 50%, known to induce gastritis, ulcers and gastric cancer. The interplay between H. pylori and immune cells within the gastric mucosa is pivotal in the pathogenesis of H. pylori-related disease. Following H. pylori infection, there is an observed increase in gastric mucosal macrophages, which are associated with the progression of gastritis. H. pylori elicits macrophage polarization, releases cytokines, reactive oxygen species (ROS) and nitric oxide (NO) to promote inflammatory response and eliminate H. pylori. Meanwhile, H. pylori has developed mechanisms to evade the host immune response in order to maintain the persistent infection, including interference with macrophage phagocytosis and antigen presentation, as well as induction of macrophage apoptosis. Consequently, the interaction between H. pylori and macrophages can significantly impact the progression, pathogenesis, and resolution of H. pylori infection. Moreover, macrophages are emerging as potential therapeutic targets for H. pylori-associated gastritis. Therefore, elucidating the involvement of macrophages in H. pylori infection may provide novel insights into the pathogenesis, progression, and management of H. pylori-related disease.
Collapse
Affiliation(s)
- Yan-Fei Wei
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Si-An Xie
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
- Beijing Digestive Disease Center, State Key Laboratory of Digestive Health, National Clinical Research Center for Digestive Disease, Beijing, 100050, China.
| | - Shu-Tian Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
| |
Collapse
|
3
|
Yang S, Hao S, Ye H, Zhang X. Cross-talk between Helicobacter pylori and gastric cancer: a scientometric analysis. Front Cell Infect Microbiol 2024; 14:1353094. [PMID: 38357448 PMCID: PMC10864449 DOI: 10.3389/fcimb.2024.1353094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 01/17/2024] [Indexed: 02/16/2024] Open
Abstract
Background Helicobacter pylori (HP) is considered a leading risk factor for gastric cancer (GC). The aim of this article is to conduct bibliometric and visual analysis to assess scientific output, identify highly cited papers, summarize current knowledge, and explore recent hotspots and trends in HP/GC research. Methods A bibliographic search was conducted on October 24, 2023, to retrieve relevant studies on HP/GC research between 2003 and 2022. The search terms were attached to HP and GC. The main data were from the Web of Science Core Collection (WoSCC). Data visualization was performed using Biblioshiny, VOSviewer, and Microsoft Excel. Results In HP/GC research, 1970 papers were retrieved. The total number of papers (Np) in HP/GC was growing from 2003 to 2022. China and Japan were in the leading position and made the most contributions to HP/GC. Vanderbilt University and the US Department of Veterans Affairs had the highest Np. The most productive authors were Peek Jr Richard M. and Piazuelo M Blanca. Helicobacter received the most Np, while Gastroenterology had the most total citations (TC). High-cited publications and keyword clustering were used to identify the current status and trends in HP/GC research, while historical citation analysis provided insight into the evolution of HP/GC research. The hot topics included the effect of HP on gastric tumorigenesis and progression, the pathogenesis of HP-induced GC (HP factors), and the mechanisms by which HP affects GC (host factors). Research in the coming years could focus on topics such as autophagy, gut microbiota, immunotherapy, exosomes, epithelial-mesenchymal transition (EMT), and gamma-glutamyl transpeptidase (GGT). Conclusion This study evaluated the global scientific output in HP/GC research and its quantitative characteristics, identified the essential works, and collected information on the current status, main focuses and emerging trends in HP/GC research to provide academics with guidance for future paths.
Collapse
Affiliation(s)
- Shanshan Yang
- Department of Integrated Traditional Chinese and Western Medicine, Peking University First Hospital, Beijing, China
| | - Shaodong Hao
- Spleen-Stomach Department, Fangshan Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Ye
- Department of Integrated Traditional Chinese and Western Medicine, Peking University First Hospital, Beijing, China
| | - Xuezhi Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Peking University First Hospital, Beijing, China
| |
Collapse
|
4
|
Meliț LE, Mărginean CO, Borka Balas R. The Most Recent Insights into the Roots of Gastric Cancer. Life (Basel) 2024; 14:95. [PMID: 38255710 PMCID: PMC10817233 DOI: 10.3390/life14010095] [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: 11/29/2023] [Revised: 01/01/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Helicobacter pylori (H. pylori) is the most common bacterial infection worldwide, usually being acquired during childhood, and its persistence into adulthood represents one of the main contributors of gastric carcinogenesis. Based on these statements, it would be of great importance to know if the most early premalignant transformation occurs in children or later since, this would enable the development of effective anti-tumorigenesis strategies. The interplay between H. pylori virulence factors, the host's responses modified by this infection, and the gastric microecology are complex and eventually lead to the development of gastric cancer in susceptible individuals. Several biomarkers were identified as major contributors of this long-lasting process, such as pepsinogens, gastrin 17, lipid-, glucose- and iron-metabolism parameters, immunity players, aberrant bacterial DNA methylation, H. pylori virulence factors, and hallmarks of gastric dysbiosis. Several of these biomarkers were also identified in children with H. pylori infection, independently of the presence of premalignant lesions, which were also proven to be present in a subgroup of H. pylori-infected children, especially those carrying extremely virulent strains. Therefore, the most incipient premalignant gastric changes might indeed occur early during childhood, opening a promising research gate for further studies to delineate the border between infection and cancer.
Collapse
Affiliation(s)
| | - Cristina Oana Mărginean
- Department of Pediatrics I, “George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology, Târgu Mureș, Gheorghe Marinescu Street, No. 38, 540136 Târgu Mureș, Romania; (L.E.M.)
| | | |
Collapse
|
5
|
Hoft SG, DiPaolo RJ. BRD4 Empowers Macrophages to Fight Helicobacter pylori. Cell Mol Gastroenterol Hepatol 2023; 17:313-314. [PMID: 38016647 PMCID: PMC10829542 DOI: 10.1016/j.jcmgh.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023]
Affiliation(s)
- Stella G Hoft
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, Saint Louis, Missouri
| | - Richard J DiPaolo
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, Saint Louis, Missouri.
| |
Collapse
|
6
|
Martinelli G, Fumagalli M, Piazza S, Maranta N, Genova F, Sperandeo P, Sangiovanni E, Polissi A, Dell’Agli M, De Fabiani E. Investigating the Molecular Mechanisms Underlying Early Response to Inflammation and Helicobacter pylori Infection in Human Gastric Epithelial Cells. Int J Mol Sci 2023; 24:15147. [PMID: 37894827 PMCID: PMC10607124 DOI: 10.3390/ijms242015147] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Helicobacter pylori is a leading cause of chronic gastric inflammation, generally associated with gastritis and adenocarcinoma. Activation of the NF-κB pathway mainly contributes to the inflammatory phenotype observed in H. pylori infection in humans and experimental models. Since the gastric epithelium undergoes rapid turnover, inflammation and pathogenicity of H. pylori result from early phase and chronically activated pathways. In the present study we investigated the early host response to H. pylori in non-tumoral human gastric epithelial cells (GES-1). To dissect the pathogen-specific mechanisms we also examined the response to tumor necrosis factor (TNF), a prototypical cytokine. By analyzing the activation state of NF-κB signaling, cytokine expression and secretion, and the transcriptome, we found that the inflammatory response of GES-1 cells to H. pylori and TNF results from activation of multiple pathways and transcription factors, e.g., NF-κB and CCAAT/enhancer-binding proteins (CEBPs). By comparing the transcriptomic profiles, we found that H. pylori infection induces a less potent inflammatory response than TNF but affects gene transcription to a greater extent by specifically inducing transcription factors such as CEBPβ and numerous zinc finger proteins. Our study provides insights on the cellular pathways modulated by H. pylori in non-tumoral human gastric cells unveiling new potential targets.
Collapse
Affiliation(s)
| | | | - Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (N.M.); (F.G.); (P.S.); (E.S.); (A.P.); (M.D.); (E.D.F.)
| | | | | | | | | | | | | | | |
Collapse
|
7
|
Modi N, Chen Y, Dong X, Hu X, Lau GW, Wilson KT, Peek RM, Chen LF. BRD4 Regulates Glycolysis-Dependent Nos2 Expression in Macrophages Upon H pylori Infection. Cell Mol Gastroenterol Hepatol 2023; 17:292-308.e1. [PMID: 37820788 PMCID: PMC10829522 DOI: 10.1016/j.jcmgh.2023.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND & AIMS Metabolic reprogramming is essential for the activation and functions of macrophages, including bacterial killing and cytokine production. Bromodomain-containing protein 4 (BRD4) has emerged as a critical regulator of innate immune response. However, the potential role of BRD4 in the metabolic reprogramming of macrophage activation upon Helicobacter pylori infection remains unclear. METHODS Bone marrow-derived macrophages (BMDMs) from wild-type (WT) and Brd4-myeloid deletion conditional knockout (Brd4-CKO) mice were infected with H pylori. RNA sequencing was performed to evaluate the differential gene expression between WT and Brd4-deficient BMDMs upon infection. An in vivo model of H pylori infection using WT and Brd4-CKO mice was used to confirm the role of BRD4 in innate immune response to infection. RESULTS Depletion of Brd4 in BMDMs showed impaired H pylori-induced glycolysis. In addition, H pylori-induced expression of glycolytic genes, including Slc2a1 and Hk2, was decreased in Brd4-deficient BMDMs. BRD4 was recruited to the promoters of Slc2a1 and Hk2 via hypoxia-inducible factor-1α, facilitating their expression. BRD4-mediated glycolysis stabilized H pylori-induced nitric oxide synthase (Nos2) messenger RNA to produce nitric oxide. The NO-mediated killing of H pylori decreased in Brd4-deficient BMDMs, which was rescued by pyruvate. Furthermore, Brd4-CKO mice infected with H pylori showed reduced gastric inflammation and increased H pylori colonization with reduced inducible NO synthase expression in gastric macrophages. CONCLUSIONS Our study identified BRD4 as a key regulator of hypoxia-inducible factor-1α-dependent glycolysis and macrophage activation. Furthermore, we show a novel regulatory role of BRD4 in innate immunity through glycolysis to stabilize Nos2 messenger RNA for NO production to eliminate H pylori infection.
Collapse
Affiliation(s)
- Nikita Modi
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Yanheng Chen
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Xingchen Dong
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Xiangming Hu
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Gee W Lau
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Keith T Wilson
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee; Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - Richard M Peek
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Lin-Feng Chen
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois.
| |
Collapse
|
8
|
Sah DK, Arjunan A, Lee B, Jung YD. Reactive Oxygen Species and H. pylori Infection: A Comprehensive Review of Their Roles in Gastric Cancer Development. Antioxidants (Basel) 2023; 12:1712. [PMID: 37760015 PMCID: PMC10525271 DOI: 10.3390/antiox12091712] [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: 07/05/2023] [Revised: 08/14/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Gastric cancer (GC) is the fifth most common cancer worldwide and makes up a significant component of the global cancer burden. Helicobacter pylori (H. pylori) is the most influential risk factor for GC, with the International Agency for Research on Cancer classifying it as a Class I carcinogen for GC. H. pylori has been shown to persist in stomach acid for decades, causing damage to the stomach's mucosal lining, altering gastric hormone release patterns, and potentially altering gastric function. Epidemiological studies have shown that eliminating H. pylori reduces metachronous cancer. Evidence shows that various molecular alterations are present in gastric cancer and precancerous lesions associated with an H. pylori infection. However, although H. pylori can cause oxidative stress-induced gastric cancer, with antioxidants potentially being a treatment for GC, the exact mechanism underlying GC etiology is not fully understood. This review provides an overview of recent research exploring the pathophysiology of H. pylori-induced oxidative stress that can cause cancer and the antioxidant supplements that can reduce or even eliminate GC occurrence.
Collapse
Affiliation(s)
| | | | - Bora Lee
- Department of Biochemistry, Chonnam National University Medical School, Seoyang Ro 264, Jeonnam, Hwasun 58128, Republic of Korea; (D.K.S.); (A.A.)
| | - Young Do Jung
- Department of Biochemistry, Chonnam National University Medical School, Seoyang Ro 264, Jeonnam, Hwasun 58128, Republic of Korea; (D.K.S.); (A.A.)
| |
Collapse
|
9
|
Feilstrecker Balani G, dos Santos Cortez M, Picasky da Silveira Freitas JE, Freire de Melo F, Zarpelon-Schutz AC, Teixeira KN. Immune response modulation in inflammatory bowel diseases by Helicobacter pylori infection. World J Gastroenterol 2023; 29:4604-4615. [PMID: 37662864 PMCID: PMC10472898 DOI: 10.3748/wjg.v29.i30.4604] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/01/2023] [Accepted: 07/24/2023] [Indexed: 08/10/2023] Open
Abstract
Many studies point to an association between Helicobacter pylori (H. pylori) infection and inflammatory bowel diseases (IBD). Although controversial, this association indicates that the presence of the bacterium somehow affects the course of IBD. It appears that H. pylori infection influences IBD through changes in the diversity of the gut microbiota, and hence in local chemical characteristics, and alteration in the pattern of gut immune response. The gut immune response appears to be modulated by H. pylori infection towards a less aggressive inflammatory response and the establishment of a targeted response to tissue repair. Therefore, a T helper 2 (Th2)/macrophage M2 response is stimulated, while the Th1/macrophage M1 response is suppressed. The immunomodulation appears to be associated with intrinsic factors of the bacteria, such as virulence factors - such oncogenic protein cytotoxin-associated antigen A, proteins such H. pylori neutrophil-activating protein, but also with microenvironmental changes that favor permanence of H. pylori in the stomach. These changes include the increase of gastric mucosal pH by urease activity, and suppression of the stomach immune response promoted by evasion mechanisms of the bacterium. Furthermore, there is a causal relationship between H. pylori infection and components of the innate immunity such as the NLR family pyrin domain containing 3 inflammasome that directs IBD toward a better prognosis.
Collapse
Affiliation(s)
| | | | | | - Fabrício Freire de Melo
- Campus Anísio Teixeira, Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45.029-094, Bahia, Brazil
| | - Ana Carla Zarpelon-Schutz
- Campus Toledo, Universidade Federal do Paraná, Toledo 85.919-899, Paraná, Brazil
- Programa de Pós-graduação em Biotecnologia - Setor Palotina, Universidade Federal do Paraná, Palotina 85.950-000, Paraná, Brazil
| | - Kádima Nayara Teixeira
- Campus Toledo, Universidade Federal do Paraná, Toledo 85.919-899, Paraná, Brazil
- Programa Multicêntrico de Pós-graduação em Bioquímica e Biologia Molecular - Setor Palotina, Universidade Federal do Paraná, Palotina 85.950-000, Paraná, Brazil
| |
Collapse
|
10
|
Ma L, Liu Y, Wang Y, Yang J, Lu J, Feng H, Ye S, Liu Y. Identification of PTPN20 as an innate immunity-related gene in gastric cancer with Helicobacter pylori infection. Front Immunol 2023; 14:1212692. [PMID: 37359510 PMCID: PMC10287967 DOI: 10.3389/fimmu.2023.1212692] [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: 04/26/2023] [Accepted: 05/31/2023] [Indexed: 06/28/2023] Open
Abstract
Background Gastric cancer (GC) is among the deadliest diseases with countless incidences and deaths each year. Helicobacter pylori (Hp) is the primary type of microbe that colonizes the stomach. In recent years, increasing evidence has demonstrated that Hp infection is one of the main risk factors for GC. Elucidating the molecular mechanism of how Hp leads to GC will not only benefit the treatment of GC, but also boost the development of therapeutics for other gastric disorders caused by Hp infection. In this study, we aimed to identify innate immunity-related genes in GC and investigate their potentials as prognostic markers and therapeutic targets for Hp-related GC. Methods Firstly, we analyzed the differentially expressed innate immunity-related genes in GC samples from the TCGA database. Then prognostic correlation analysis was carried out to explore the prognostic value of these candidate genes. By combing transcriptome data, somatic mutation data, and clinical data, co-expression analysis, functional enrichment analysis, tumor mutational burden analysis, and immune infiltration analysis were performed to reveal the pathological relevance of the candidate gene. Finally, ceRNA network was constructed to identify the genes and pathways for the regulation of the candidate gene. Results We revealed that protein tyrosine phosphatase non-receptor type 20 (PTPN20) is a significant prognostic marker in Hp-related GC. Thus, PTPN20 levels have the potential to efficiently predict the survival of Hp-related GC patients. In addition, PTPN20 is associated with immune cell infiltration and tumor mutation burden in these GC patients. Moreover, we have also identified PTPN20-related genes, PTPN20 protein-protein interactions, and the PTPN20 ceRNA network. Conclusion Our data suggest that PTPN20 may have critical functions in Hp-related GC. Targeting PTPN20 may be a promising way to treat Hp-related GC.
Collapse
Affiliation(s)
- Lianjun Ma
- Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Yang Liu
- Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Yizhao Wang
- Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Jiaxing Yang
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, United States
| | - Jordan Lu
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, United States
| | - Huijin Feng
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, United States
| | - Shujun Ye
- Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Yanqing Liu
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, United States
| |
Collapse
|
11
|
Li H, Lin J, Cheng S, Chi J, Luo J, Tang Y, Zhao W, Shu Y, Liu X, Xu C. Comprehensive analysis of differences in N6-methyladenosine RNA methylomes in Helicobacter pylori infection. Front Cell Dev Biol 2023; 11:1136096. [PMID: 37363723 PMCID: PMC10289286 DOI: 10.3389/fcell.2023.1136096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/13/2023] [Indexed: 06/28/2023] Open
Abstract
Background: Helicobacter pylori (H.pylori) infection is an important factor in the occurrence of human gastric diseases, but its pathogenic mechanism is not clear. N6-methyladenosine (m6A) is the most prevalent reversible methylation modification in mammalian RNA and it plays a crucial role in controlling many biological processes. However, there are no studies reported that whether H. pylori infection impacts the m6A methylation of stomach. In this study, we measured the overall level changes of m6A methylation of RNA under H. pylori infection through in vitro and in vivo experiment. Methods: The total quantity of m6A was quantified in gastric tissues of clinical patients and C57 mice with H. pylori infection, as well as acute infection model [H. pylori and GES-1 cells were cocultured for 48 h at a multiplicity of infection (MOI) from of 10:1 to 50:1]. Furthermore, we performed m6A methylation sequencing and RNA-sequencing on the cell model and RNA-sequencing on animal model. Results: Quantitative detection of RNA methylation showed that H. pylori infection group had higher m6A modification level. M6A methylation sequencing identified 2,107 significantly changed m6A methylation peaks, including 1,565 upregulated peaks and 542 downregulated peaks. A total of 2,487 mRNA was upregulated and 1,029 mRNA was downregulated. According to the comprehensive analysis of MeRIP-seq and RNA-seq, we identified 200 hypermethylation and upregulation, 129 hypermethylation but downregulation, 19 hypomethylation and downregulation and 106 hypomethylation but upregulation genes. The GO and KEGG pathway analysis of these differential methylation and regulatory genes revealed a wide range of biological functions. Moreover, combining with mice RNA-seq results, qRT- PCR showed that m6A regulators, METTL3, WTAP, FTO and ALKBH5, has significant difference; Two key genes, PTPN14 and ADAMTS1, had significant difference by qRT- PCR. Conclusion: These findings provide a basis for further investigation of the role of m6A methylation modification in H. pylori-associated gastritis.
Collapse
Affiliation(s)
- Huan Li
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jiahui Lin
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Sha Cheng
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jingshu Chi
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ju Luo
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yu Tang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Wenfang Zhao
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yufeng Shu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiaoming Liu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Non-Resolving Inflammation and Cancer, Central South University, Changsha, Hunan, China
| | - Canxia Xu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Non-Resolving Inflammation and Cancer, Central South University, Changsha, Hunan, China
| |
Collapse
|
12
|
Wang Z, Shao SL, Xu XH, Zhao X, Wang MY, Chen A, Cong HY. Helicobacter pylori and gastric microbiota homeostasis: progress and prospects. Future Microbiol 2023; 18:137-157. [PMID: 36688318 DOI: 10.2217/fmb-2022-0102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Helicobacter pylori, a Gram-negative microaerobic bacteria belonging to the phylum Proteobacteria, can colonize in the stomach and duodenum, and cause a series of gastrointestinal diseases such as gastritis, gastric ulcer and even gastric cancer. At present, the high diversity of the microorganisms in the stomach has been confirmed with culture-independent methods; some researchers have also studied the stomach microbiota composition at different stages of H. pylori carcinogenesis. Here, we mainly review the possible role of H. pylori-mediated microbiota changes in the occurrence and development of gastric cancer to provide new ideas for preventing H. pylori infection and regulating microecological imbalance.
Collapse
Affiliation(s)
- Zan Wang
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Shu-Li Shao
- Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Xiao-Han Xu
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Xue Zhao
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Ming-Yi Wang
- Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Ai Chen
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China.,Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Hai-Yan Cong
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China.,Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| |
Collapse
|
13
|
Tas SK, Kirkik D, Altunkanat D, Uzunoglu AS, Uzunoglu MS, Celik BA, Ilgar E. Immune Response and Therapeutic Vaccination against Helicobacter pylori. BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY 2023; 66. [DOI: 10.1590/1678-4324-2023230123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
|
14
|
Li C, Lu C, Gong L, Liu J, Kan C, Zheng H, Wang S. SHP2/SPI1axis promotes glycolysis and the inflammatory response of macrophages in Helicobacter pylori-induced pediatric gastritis. Helicobacter 2022; 27:e12895. [PMID: 35437862 DOI: 10.1111/hel.12895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/14/2022] [Accepted: 03/20/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND Macrophages, as innate immune cells, were reported to participate in the pathogenesis of Helicobacter pylori (H. pylori)-induced gastritis. However, the role and mechanism of macrophage dysfunction in H. pylori-associated pediatric gastritis remain unclear. MATERIALS AND METHODS An RNA-sequencing assay was used to examine the differential gene expression in normal gastric antrum, non-H. pylori-infected tissue, and H. pylori-infected pediatric gastritis tissue. qPCR assays were applied to verify the expression of target genes. HE staining was performed to identify the occurrence of inflammation in the normal gastric antrum, non-H. pylori-infected tissue, and H. pylori-infected pediatric gastritis tissue. Western blotting was used to measure the expression of SHP2 in pediatric gastritis tissue. The metabolic profile of macrophages was determined via Seahorse metabolic analysis. Flow cytometry analysis was used to examine the level of reactive oxygen species (ROS). RESULTS We found that H. pylori -infected gastritis tissue exhibited many differentially expressed genes (DEGs) compared to gastritis tissue without H. pylori infection. Moreover, H. pylori -infected gastritis tissue showed many DEGs annotated with an overactive immune response. We identified that tyrosine-protein phosphatase nonreceptor type 11 (PTPN11), which encodes SHP2, was significantly increased in macrophages of H. pylori -infected gastritis tissue. Furthermore, we revealed that SHP2 could activate the glycolytic function of macrophages to promote H. pylori -induced inflammation. The transcription factor SPI1 , as the downstream molecule of SHP2, could be responsible for the regulation of metabolism-associated gene expression and inflammation. CONCLUSION Our study illustrated the molecular landscape of H. pylori-infected gastritis tissue in children and suggested that the SHP2/SPI1axis could be a novel therapeutic target in H. pylori-induced pediatric gastritis.
Collapse
Affiliation(s)
- Chuanying Li
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.,Department of Gastroenterology, Children's Hospital of Anhui Medical University, Hefei, China
| | - Changyun Lu
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Liangju Gong
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Jia Liu
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Chen Kan
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Hong Zheng
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Siying Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| |
Collapse
|
15
|
Cheok YY, Tan GMY, Lee CYQ, Abdullah S, Looi CY, Wong WF. Innate Immunity Crosstalk with Helicobacter pylori: Pattern Recognition Receptors and Cellular Responses. Int J Mol Sci 2022; 23:ijms23147561. [PMID: 35886908 PMCID: PMC9317022 DOI: 10.3390/ijms23147561] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori is one of the most successful gastric pathogens that has co-existed with human for centuries. H. pylori is recognized by the host immune system through human pattern recognition receptors (PRRs), such as toll-like receptors (TLRs), C-type lectin like receptors (CLRs), NOD-like receptors (NLRs), and RIG-I-like receptors (RLRs), which activate downstream signaling pathways. Following bacterial recognition, the first responders of the innate immune system, including neutrophils, macrophages, and dendritic cells, eradicate the bacteria through phagocytic and inflammatory reaction. This review provides current understanding of the interaction between the innate arm of host immunity and H. pylori, by summarizing H. pylori recognition by PRRs, and the subsequent signaling pathway activation in host innate immune cells.
Collapse
Affiliation(s)
- Yi Ying Cheok
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (Y.Y.C.); (G.M.Y.T.); (C.Y.Q.L.)
| | - Grace Min Yi Tan
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (Y.Y.C.); (G.M.Y.T.); (C.Y.Q.L.)
| | - Chalystha Yie Qin Lee
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (Y.Y.C.); (G.M.Y.T.); (C.Y.Q.L.)
| | - Suhailah Abdullah
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Chung Yeng Looi
- School of Biosciences, Faculty of Health & Medical Sciences, Taylor’s University, Subang Jaya 47500, Malaysia;
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (Y.Y.C.); (G.M.Y.T.); (C.Y.Q.L.)
- Correspondence:
| |
Collapse
|
16
|
Vahidi S, Mirzajani E, Norollahi SE, Aziminezhad M, Samadani AA. Performance of DNA Methylation on the Molecular Pathogenesis of Helicobacter pylori in Gastric Cancer; targeted therapy approach. J Pharmacopuncture 2022; 25:88-100. [PMID: 35837145 PMCID: PMC9240405 DOI: 10.3831/kpi.2022.25.2.88] [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: 07/29/2021] [Revised: 03/29/2022] [Accepted: 04/11/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- Sogand Vahidi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ebrahim Mirzajani
- Department of Biochemistry, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
- Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Seyedeh Elham Norollahi
- Cancer Research Center and Department of Immunology, Semnan University of Medical Sciences, Semnan, Iran
| | - Mohsen Aziminezhad
- Non-Communicable Disease Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran
- UMR INSERM U 1122, Gene Environment Interactions in Cardiovascular Pathophysiology (IGE-PCV), University of Lorraine, Nancy, France
| | - Ali Akbar Samadani
- Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran
| |
Collapse
|
17
|
Linolenic Acid-Metronidazole: a Compound Relieving Drug Resistance and Inhibiting Helicobacter pylori. Antimicrob Agents Chemother 2022; 66:e0007322. [PMID: 35758720 PMCID: PMC9295599 DOI: 10.1128/aac.00073-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Metronidazole (Met) is the first choice for treating Helicobacter pylori (Hp). However, Hp is easy to resistant, making Met unable to be widely used. How to overcome Hp’s Met resistance is still an issue. In this study, Met was used as the primary raw material with linolenic acid to prepare a novel compound-linolenic acid-metronidazole (Lla-Met). The MIC, minimum bactericidal concentration (MBC), colonization amount of Hp in gastric mucosa, etc., were evaluated, respectively. Lla-Met was successfully prepared by the detection of nuclear magnetic resonance, etc., and its MIC and MBC to Hp were 2~4 μg/mL, 8~16 μg/mL. Moreover, in vivo experiments, Lla-Met significantly reduced the colonization of drug-resistant Hp in gastric mucosa. In the toxicity test, Lla-Met inhibited rate to GES-1 and BGC823 cells were 15% at 128 μg/mL; the mice were administered 10 times treatment Lla-Met treatment (240 mg/kg), have no difference significant injuries were found in their stomach, liver, spleen, kidney, and weight. In addition, Hp G27 continued for 18 days in vitro with sub-Lla-Met concentration, G27 did not show drug resistance to Lla-Met; Lla-Met did not exert an effect on non-Hp species with 128 μg/mL; Compared with a neutral environment, when the acid concentration is 3.0, Lla-Met is not decomposed and has better stability. Conclusion: Lla-Met, a newly prepared compound, has relatively well antibacterial of Met-resistant and sensitive Hp, with a capability of overcoming the metronidazole resistance of Hp.
Collapse
|
18
|
Latour YL, Sierra JC, Finley JL, Asim M, Barry DP, Allaman MM, Smith TM, McNamara KM, Luis PB, Schneider C, Jacobse J, Goettel JA, Calcutt MW, Rose KL, Schey KL, Milne GL, Delgado AG, Piazuelo MB, Paul BD, Snyder S, Gobert AP, Wilson KT. CTH exacerbates Helicobacter pylori immunopathogenesis by promoting macrophage metabolic remodeling and activation. JCI Insight 2022; 7:155338. [PMID: 35579952 DOI: 10.1172/jci.insight.155338] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 05/10/2022] [Indexed: 11/17/2022] Open
Abstract
Macrophages play a crucial role in the inflammatory response to the human stomach pathogen Helicobacter pylori, which infects half of the world's population and causes gastric cancer. Recent studies have highlighted the importance of macrophage immunometabolism in their activation state and function. We have demonstrated that the cysteine-producing enzyme, cystathionine g-lyase (CTH), is upregulated in humans and mice with H. pylori infection. Here we show that induction of CTH in macrophages by H. pylori promotes persistent inflammation. Cth-/- mice have reduced macrophage and T-cell activation in H. pylori-infected tissues, an altered metabolome, and decreased enrichment of immune-associated gene networks, culminating in decreased H. pylori-induced-gastritis. CTH is downstream of the proposed anti-inflammatory molecule, S-adenosylmethionine (SAM). While Cth-/- mice exhibit gastric SAM accumulation, WT mice treated with SAM did not display protection against H. pylori-induced inflammation. Instead, we demonstrate that Cth-deficient macrophages exhibit alterations in the proteome, decreased NF-kB activation, diminished expression of macrophage activation markers, and impaired oxidative phosphorylation and glycolysis. Thus, through altering cellular respiration, CTH is a key enhancer of macrophage activation contributing to a pathogenic inflammatory response that is the universal precursor for the development of H. pylori-induced gastric disease.
Collapse
Affiliation(s)
- Yvonne L Latour
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Johanna C Sierra
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - Jordan L Finley
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - Mohammad Asim
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - Daniel P Barry
- Department of Medicine, Vanderbilt Univeristy Medical Center, Nashville, United States of America
| | - Margaret M Allaman
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - Thaddeus M Smith
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - Kara M McNamara
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Paula B Luis
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Claus Schneider
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Justin Jacobse
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Jeremy A Goettel
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - M Wade Calcutt
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Kristie L Rose
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Kevin L Schey
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, United States of America
| | - Ginger L Milne
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - Alberto G Delgado
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - M Blanca Piazuelo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| | - Bindu D Paul
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, United States of America
| | - Solomon Snyder
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, United States of America
| | - Alain P Gobert
- Department of Medicine, Vandebilt University Medical Center, Nashville, United States of America
| | - Keith T Wilson
- Department of Medicine, Vanderbilt University Medical Center, Nashville, United States of America
| |
Collapse
|
19
|
Nath AN, Retnakumar RJ, Francis A, Chhetri P, Thapa N, Chattopadhyay S. Peptic Ulcer and Gastric Cancer: Is It All in the Complex Host-Microbiome Interplay That Is Encoded in the Genomes of "Us" and "Them"? Front Microbiol 2022; 13:835313. [PMID: 35547123 PMCID: PMC9083406 DOI: 10.3389/fmicb.2022.835313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/18/2022] [Indexed: 11/13/2022] Open
Abstract
It is increasingly being recognized that severe gastroduodenal diseases such as peptic ulcer and gastric cancer are not just the outcomes of Helicobacter pylori infection in the stomach. Rather, both diseases develop and progress due to the perfect storms created by a combination of multiple factors such as the expression of different H. pylori virulence proteins, consequent human immune responses, and dysbiosis in gastrointestinal microbiomes. In this mini review, we have discussed how the genomes of H. pylori and other gastrointestinal microbes as well as the genomes of different human populations encode complex and variable virulome–immunome interplay, which influences gastroduodenal health. The heterogeneities that are encrypted in the genomes of different human populations and in the genomes of their respective resident microbes partly explain the inconsistencies in clinical outcomes among the H. pylori-infected people.
Collapse
Affiliation(s)
- Angitha N Nath
- Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
| | - R J Retnakumar
- Rajiv Gandhi Centre for Biotechnology, Trivandrum, India.,Manipal Academy of Higher Education, Manipal, India
| | - Ashik Francis
- Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
| | - Prakash Chhetri
- Department of Zoology, Biotech Hub, Nar Bahadur Bhandari Degree College, Tadong, India
| | - Namrata Thapa
- Department of Zoology, Biotech Hub, Nar Bahadur Bhandari Degree College, Tadong, India
| | | |
Collapse
|
20
|
Dynamics of Oxidative Stress in Helicobacter pylori-Positive Patients with Atrophic Body Gastritis and Various Stages of Gastric Cancer. Diagnostics (Basel) 2022; 12:diagnostics12051203. [PMID: 35626358 PMCID: PMC9141138 DOI: 10.3390/diagnostics12051203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer is a global health problem. The pathogenesis of this disease remains unclear. This study included 198 H. pylori (+) men aged 45 to 60 years old. Group A included 63 practically healthy men, group B included 45 men with severe atrophic body gastritis, group C included 37 men with epithelial gastric cancer stages I–II according to TNM, and group D included 54 men with epithelial gastric cancer stages III–IV according to the TNM scale. The content of malondialdehyde (MDA), diene conjugates (DCs), superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), and glutathione peroxidase (GPO) was detected using an enzyme immunoassay (ELISA) or spectrophotometric methods in the blood plasma. The concentrations of MDA and DC were increased in the patients of group B compared with group A, and in patients of groups C and D compared with groups A and B. The ratio of MDA/SOD and MDA/CAT was decreased in the patients in group D compared with the patients in group C, and was significantly higher compared with group A. The ratios of MDA/GPO and MDA/GST increased linearly and were at a maximum in groups C and D. Our work determined that indicators of oxidative stress may be the biochemical substrate, which brings together the various stages of the Correa cascade, and may explain disease progression. The dynamics of changes in the content of SOD and CAT in the plasma in patients with gastric cancer may be a target of future investigations.
Collapse
|
21
|
Lam SY, Mommersteeg MC, Yu B, Broer L, Spaander MCW, Frost F, Weiss S, Völzke H, Lerch MM, Schöttker B, Zhang Y, Stocker H, Brenner H, Levy D, Hwang SJ, Wood AC, Rich SS, Rotter JI, Taylor KD, Tracy RP, Kabagambe EK, Leja M, Klovins J, Peculis R, Rudzite D, Nikitina-Zake L, Skenders G, Rovite V, Uitterlinden A, Kuipers EJ, Fuhler GM, Homuth G, Peppelenbosch MP. Toll-Like Receptor 1 Locus Re-examined in a Genome-Wide Association Study Update on Anti-Helicobacter pylori IgG Titers. Gastroenterology 2022; 162:1705-1715. [PMID: 35031300 DOI: 10.1053/j.gastro.2022.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 12/03/2021] [Accepted: 01/07/2022] [Indexed: 12/17/2022]
Abstract
BACKGROUND & AIMS A genome-wide significant association between anti-Helicobacter pylori (H pylori) IgG titers and Toll-like receptor (TLR1/6/10) locus on 4p14 was demonstrated for individuals of European ancestry, but not uniformly replicated. We re-investigated this association in an updated genome-wide association study (GWAS) meta-analysis for populations with low gastric cancer incidence, address potential causes of cohort heterogeneity, and explore functional implications of genetic variation at the TLR1/6/10 locus. METHODS The dichotomous GWAS (25% individuals exhibiting highest anti-H pylori IgG titers vs remaining 75%) included discovery and replication sampls of, respectively, n = 15,685 and n = 9676, all of European ancestry. Longitudinal analysis of serologic data was performed on H pylori-eradicated subjects (n = 132) and patients under surveillance for premalignant gastric lesions (n = 107). TLR1/6/10 surface expression, TLR1 mRNA, and cytokine levels were measured in leukocyte subsets of healthy subjects (n = 26) genotyped for TLR1/6/10 variants. RESULTS The association of the TLR1/6/10 locus with anti-H pylori IgG titers (rs12233670; β = -0.267 ± SE 0.034; P = 4.42 × 10-15) presented with high heterogeneity and failed replication. Anti-H pylori IgG titers declined within 2-4 years after eradication treatment (P = 0.004), and decreased over time in patients with premalignant gastric lesions (P < 0.001). Variation at the TLR1/6/10 locus affected TLR1-mediated cytokine production and TLR1 surface expression on monocytes (P = 0.016) and neutrophils (P = 0.030), but not mRNA levels. CONCLUSIONS The association between anti-H pylori IgG titers and TLR1/6/10 locus was not replicated across cohorts, possibly owing to dependency of anti-H pylori IgG titers on therapy, clearance, and antibody decay. H pylori-mediated immune cell activation is partly mediated via TLR1 signaling, which in turn is affected by genetic variation.
Collapse
Affiliation(s)
- Suk Yee Lam
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Michiel C Mommersteeg
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Bingting Yu
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Linda Broer
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Manon C W Spaander
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Fabian Frost
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Stefan Weiss
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany; Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Henry Völzke
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Markus M Lerch
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Ben Schöttker
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany; Network Aging Research, Heidelberg University, Heidelberg, Germany
| | - Yan Zhang
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Hannah Stocker
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany; Network Aging Research, Heidelberg University, Heidelberg, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany; Network Aging Research, Heidelberg University, Heidelberg, Germany
| | - Daniel Levy
- Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, Massachusetts, USA; Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Shih-Jen Hwang
- Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, Massachusetts, USA; Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Alexis C Wood
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas, USA
| | - Stephen S Rich
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | - Jerome I Rotter
- Institute for Translational Genomics and Population Sciences, Department of Pediatrics, Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Kent D Taylor
- Institute for Translational Genomics and Population Sciences, Department of Pediatrics, Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Russell P Tracy
- Laboratory for Clinical Biochemistry Research, University of Vermont College of Medicine, Colchester, Vermont, USA
| | | | - Marcis Leja
- Institute of Clinical and Preventive Medicine, Faculty of Medicine, University of Latvia, Riga, Latvia
| | - Janis Klovins
- Latvian Biomedical Research and Study Center, Riga, Latvia
| | - Raitis Peculis
- Latvian Biomedical Research and Study Center, Riga, Latvia
| | - Dace Rudzite
- Institute of Clinical and Preventive Medicine, Faculty of Medicine, University of Latvia, Riga, Latvia
| | | | - Girts Skenders
- Institute of Clinical and Preventive Medicine, Faculty of Medicine, University of Latvia, Riga, Latvia
| | - Vita Rovite
- Latvian Biomedical Research and Study Center, Riga, Latvia
| | - André Uitterlinden
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Ernst J Kuipers
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Gwenny M Fuhler
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Georg Homuth
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Maikel P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands.
| |
Collapse
|
22
|
Prasad SK, Bhat S, Shashank D, C R A, R S, Rachtanapun P, Devegowda D, Santhekadur PK, Sommano SR. Bacteria-Mediated Oncogenesis and the Underlying Molecular Intricacies: What We Know So Far. Front Oncol 2022; 12:836004. [PMID: 35480118 PMCID: PMC9036991 DOI: 10.3389/fonc.2022.836004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/22/2022] [Indexed: 01/10/2023] Open
Abstract
Cancers are known to have multifactorial etiology. Certain bacteria and viruses are proven carcinogens. Lately, there has been in-depth research investigating carcinogenic capabilities of some bacteria. Reports indicate that chronic inflammation and harmful bacterial metabolites to be strong promoters of neoplasticity. Helicobacter pylori-induced gastric adenocarcinoma is the best illustration of the chronic inflammation paradigm of oncogenesis. Chronic inflammation, which produces excessive reactive oxygen species (ROS) is hypothesized to cause cancerous cell proliferation. Other possible bacteria-dependent mechanisms and virulence factors have also been suspected of playing a vital role in the bacteria-induced-cancer(s). Numerous attempts have been made to explore and establish the possible relationship between the two. With the growing concerns on anti-microbial resistance and over-dependence of mankind on antibiotics to treat bacterial infections, it must be deemed critical to understand and identify carcinogenic bacteria, to establish their role in causing cancer.
Collapse
Affiliation(s)
- Shashanka K Prasad
- Department of Biotechnology and Bioinformatics, Faculty of Life Sciences, Jagadguru Sri Shivarathreeshwara (JSS) Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Smitha Bhat
- Department of Biotechnology and Bioinformatics, Faculty of Life Sciences, Jagadguru Sri Shivarathreeshwara (JSS) Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Dharini Shashank
- Department of General Surgery, Adichunchanagiri Institute of Medical Sciences, Mandya, India
| | - Akshatha C R
- Department of Medical Oncology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Sindhu R
- Department of Microbiology, Faculty of Life Sciences, Jagadguru Sri Shivarathreeshwara (JSS) Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Pornchai Rachtanapun
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand.,Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai, Thailand
| | - Devananda Devegowda
- Centre of Excellence in Molecular Biology and Regenerative Medicine (CEMR), Department of Biochemistry, JSS Medical College, JSS Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Prasanna K Santhekadur
- Centre of Excellence in Molecular Biology and Regenerative Medicine (CEMR), Department of Biochemistry, JSS Medical College, JSS Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Sarana Rose Sommano
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai, Thailand.,Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
| |
Collapse
|
23
|
Wang L, Cao ZM, Zhang LL, Dai XC, Liu ZJ, Zeng YX, Li XY, Wu QJ, Lv WL. Helicobacter Pylori and Autoimmune Diseases: Involving Multiple Systems. Front Immunol 2022; 13:833424. [PMID: 35222423 PMCID: PMC8866759 DOI: 10.3389/fimmu.2022.833424] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/24/2022] [Indexed: 12/12/2022] Open
Abstract
The modern Gastroenterology have witnessed an essential stride since Helicobacter pylori was first found in the stomach and then its pathogenic effect was discovered. According to the researches conducted during the nearly 40 years, it has been found that this bacterium is associated with a natural history of many upper gastrointestinal diseases. Epidemiological data show an increased incidence of autoimmune disorders with or after infection with specific microorganisms. The researches have revealed that H. pylori is a potential trigger of gastric autoimmunity, and it may be associated with other autoimmune diseases, both innate and acquired. This paper reviews the current support or opposition about H. pylori as the role of potential triggers of autoimmune diseases, including inflammatory bowel disease, autoimmune thyroiditis, type 1 diabetes mellitus, autoimmune liver diseases, rheumatoid arthritis, idiopathic thrombocytopenic purpura, systemic lupus erythematosus, as well as Sjogren’s syndrome, chronic urticaria and psoriasis, and tried to explain the possible mechanisms.
Collapse
Affiliation(s)
- Li Wang
- Department of Infection, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zheng-Min Cao
- Department of Infection, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li-Li Zhang
- Department of Infection, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xin-Can Dai
- Department of Infection, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhen-Ju Liu
- Department of Proctology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yi-Xian Zeng
- Department of Proctology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xin-Ye Li
- Department of Cardiovascular, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qing-Juan Wu
- Department of Infection, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wen-Liang Lv
- Department of Infection, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
24
|
The Effects of Vitamins and Micronutrients on Helicobacter pylori Pathogenicity, Survival, and Eradication: A Crosstalk between Micronutrients and Immune System. J Immunol Res 2022; 2022:4713684. [PMID: 35340586 PMCID: PMC8942682 DOI: 10.1155/2022/4713684] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/19/2022] [Accepted: 02/25/2022] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori as a class I carcinogen is correlated with a variety of severe gastroduodenal diseases; therefore, H. pylori eradication has become a priority to prevent gastric carcinogenesis. However, due to the emergence and spread of multidrug and single drug resistance mechanisms in H. pylori, as well as serious side effects of currently used antibiotic interventions, achieving successful H. pylori eradication has become exceedingly difficult. Recent studies expressed the intention of seeking novel strategies to improve H. pylori management and reduce the risk of H. pylori-associated intestinal and extragastrointestinal disorders. For which, vitamin supplementation has been demonstrated in many studies to have a tight interaction with H. pylori infection, either directly through the regulation of the host inflammatory pathways or indirectly by promoting the host immune response. On the other hand, H. pylori infection is reported to result in micronutrient malabsorption or deficiency. Furthermore, serum levels of particular micronutrients, especially vitamin D, are inversely correlated to the risk of H. pylori infection and eradication failure. Accordingly, vitamin supplementation might increase the efficiency of H. pylori eradication and reduce the risk of drug-related adverse effects. Therefore, this review aims at highlighting the regulatory role of micronutrients in H. pylori-induced host immune response and their potential capacity, as intrinsic antioxidants, for reducing oxidative stress and inflammation. We also discuss the uncovered mechanisms underlying the molecular and serological interactions between micronutrients and H. pylori infection to present a perspective for innovative in vitro investigations, as well as novel clinical implications.
Collapse
|
25
|
Liu H, Zheng W, Zhang L, Lin T, Tang Y, Hu L. Effect of Helicobacter pylori-Associated Chronic Gastritis on Autonomous Activity and Sleep Quality in Mice. Front Pharmacol 2022; 13:785105. [PMID: 35185560 PMCID: PMC8856107 DOI: 10.3389/fphar.2022.785105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/19/2022] [Indexed: 12/27/2022] Open
Abstract
Many reports have shown that patients with Hp-associated chronic gastritis exhibit anxiety and poor sleep quality. However, less is known about the effects and specific manifestations of Hp-associated chronic gastritis on autonomous activity and sleep quality in animals. Here, we investigated the effect of Helicobacter pylori (Hp)-associated chronic gastritis on autonomous activity and sleep quality in mice. To do this, a Hp-associated chronic gastritis mouse model was first established, then analyzed for autonomous activity, relative to controls, for 15 min using an autonomous activity tester. Next, sleep quality of mice was detected by sodium pentobarbital-induced sleep experiment and results compared between groups. The results showed that male mice in the model group exhibited higher activity counts but lower forelimb lift counts, relative to those in the control group, although there were no significant differences (all p > .05). Conversely, female mice in the model group recorded lower activity counts, albeit at no significant difference (p > .05), and significantly lower counts of forelimb lift (p < .05), relative to those in the control group. Notably, male mice in the model group had longer sleep latency and shorter sleep duration than those in the control group, albeit at no significant differences (all p > .05). On the other hand, female mice in the model group recorded significantly longer sleep latency as well as shorter sleep duration compared to those in the control group (all p < .01). We conclude that Hp-associated chronic gastritis exerts certain effects on autonomous activity and sleep quality of mice in a gender-dependent manner. Notably, female mice with Hp-associated chronic gastritis had lower activity and forelimb lift counts, as well as prolonged sleep latency, and shortened sleep duration. These effects were all statistically significant except for activity counts.
Collapse
Affiliation(s)
- Haihua Liu
- Institute of Gastroenterology, Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou, China
| | - Wenlong Zheng
- Shangyou Hospital of Traditional Chinese Medicine, Ganzhou, China
| | - Ling Zhang
- Institute of Gastroenterology, Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tangtang Lin
- First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou, China
| | - Yang Tang
- First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou, China
| | - Ling Hu
- Institute of Gastroenterology, Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Ling Hu,
| |
Collapse
|
26
|
Innate Immune Responses in Pediatric Patients with Gastritis—A Trademark of Infection or Chronic Inflammation? CHILDREN 2022; 9:children9020121. [PMID: 35204842 PMCID: PMC8870386 DOI: 10.3390/children9020121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/05/2022] [Accepted: 01/12/2022] [Indexed: 12/16/2022]
Abstract
The aim of this study was to define the relationship between several environmental, laboratory, and genetic factors, i.e., TLR2 and NLRP3 polymorphisms, and Helicobacter pylori (H. pylori) infection in children, by comparing three different groups of pediatric subjects: H. pylori-induced gastritis, non-H. pylori gastritis, and healthy controls. Our final study sample included 269 children, which were divided into three groups according to the histopathological exam: group 1 with 51 children with H. pylori-induced gastritis, group 2 with 103 children with H. pylori-negative gastritis, and group 3 (control group) with 115 children without any histopathological changes. All children underwent a thorough anamnesis, clinical exam, laboratory tests, and upper digestive endoscopy with gastric biopsy for rapid urease test, histopathological exam, and genetic analysis of TLR2 rs3804099, TLR2 rs3804100, and NLRP3 rs10754558 gene polymorphisms. We noticed a significant association between living conditions and the type of gastritis (p < 0.0001). Both rapid urease and serological tests were significantly associated with the presence of H. pylori (p < 0.0001). The CT variant genotype of TLR2 rs380499 was significantly associated with neutrophil count (p = 0.0325). We noticed a significant association between the CC variant genotype of NLRP3 rs10754558 and leucocytes, neutrophils, eosinophils, as well as ALT (p = 0.0185, p = 0.0379, p = 0.0483, p = 0.0356). Based on these findings, we state that poor living conditions and rural areas represent risk factors for H. pylori infection. The rapid urease test is a reliable diagnostic tool for this infection. CT and TT carriers of TLR2 rs3804099, as well as CC carriers of NLRP3 rs10754558, might display a more severe degree of systemic inflammation.
Collapse
|
27
|
Salmanroghani H, Rouzegari MH, Salmanroghani R. Helicobacter Pylori infection among Iranian patients with normal upper gastrointestinal endoscopy. CASPIAN JOURNAL OF INTERNAL MEDICINE 2022; 13:398-404. [PMID: 35919645 PMCID: PMC9301221 DOI: 10.22088/cjim.13.2.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/11/2021] [Accepted: 04/24/2021] [Indexed: 11/19/2022]
Abstract
Background Helicobacter pylori infection can be a risk factor for non-cardia gastric cancer. In the present study, we aimed to assess the rate of Helicobacter pylori infection, its virulence factor and precancerous lesion among over 50 years old, dyspeptic patients with normal endoscopy. Methods A total of 620 patients over 50 years of age with dyspepsia that referred to Shahid Sadoughi Hospital, Yazd, Iran from December 2018 to January 2019 were evaluated. One hundred fifty patients with normal appearance endoscopy were selected, and six gastric biopsy specimens were taken from each subject. Data were analyzed using chi-square and logistic regression tests. Results A total of 150 patients with mean age of 65.8±11.9 years old participated in this study. Sixty-three (42%) patients were males. Thirty-four (22.6%) patients had precancerous lesions. Ninety (60%) patients had positive PCR results for H. pylori. H. pylori infection test was positive in 24 (70.6%) patients with precancerous lesion. Sixty-six (57%) patients without the precancerous lesions (116 cases) were positive for H. pylori. Conclusion There was no a significant difference in the rate of H. pylori infection and its genotype distribution was between patients with and without the precancerous lesions.
Collapse
Affiliation(s)
- Hassan Salmanroghani
- Department of Internal Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Hassan Rouzegari
- Department of Gastroenterology, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran,Correspondence: Mohammad Hassan Rouzegari, Department of Gastroenterology, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran. E-mail: , Tel: 0098 21 6947985, Fax: 0098 21 8799840
| | - Roham Salmanroghani
- Department of Gastroenterology, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
28
|
Velissari A, Vassilakopoulos TP, Angelopoulou MK, Korkolopoulou P, Bamias G, Daikos G, Konstantopoulos K, Siakantaris M. Genetic polymorphisms and risk of MALT lymphoma in Greek population. Curr Res Transl Med 2021; 70:103330. [PMID: 34979486 DOI: 10.1016/j.retram.2021.103330] [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: 07/01/2021] [Revised: 11/22/2021] [Accepted: 12/20/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE MALT lymphoma is thought to have a genetic component. Genetic studies in the greek population are rare and genetic determinants remain to be established. The current study aimed to seek correlations between genetic polymorphisms and risk of MALT lymphoma in the Greek population. PATIENTS AND METHODS 83 MALT lymphoma patients and 60 age-matched healthy outpatients were recruited. SNPs in TNFa, LTA and CTLA-4 genes and IL1RN-VNTR and GSTT1 and GSTTM1 null polymorphisms were genotyped using published PCR/PCR-RFLP methods, while two novel PCR-RFLP methods were developed for IL-22 rs7314777 and TCF19 rs7750641 SNPs. Part of the results was validated by DNA-sequencing. Statistical analysis was performed using SPSS and the SNPstats bioinformatic tool. RESULTS The mean age of the patients and controls were 55.9 and 56.2 years respectively. The majority of patients (63) suffered gastric marzinal zone lymphoma (GMZL) and 71.1% were stage I at diagnosis. A statistically significant association was noted for the CTLA-4 49A/ G G variant (OR:2.56,p: 0.006) and the TCF19 rs7750641 SNP T variant (OR: 3.86, p:0.023). CONCLUSIONS Our study confirmed a role for CTLA-4 49A/G and TCF19 rs7750641 SNPs in the Greek population. Additional studies could help confirm these associations and possibly link them to prognosis or response to treatment parameters.
Collapse
Affiliation(s)
- A Velissari
- Hematology Department, National and Kapodistrian University of Athens, Laiko General Hospital.
| | - T P Vassilakopoulos
- Hematology Department, National and Kapodistrian University of Athens, Laiko General Hospital
| | - M K Angelopoulou
- Hematology Department, National and Kapodistrian University of Athens, Laiko General Hospital
| | - P Korkolopoulou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens
| | - G Bamias
- Gastrenterology Department, National and Kapodistrian University of Athens, Laiko General Hospital
| | - G Daikos
- First Department of Internal Medicine, National and Kapodistrian University of Athens, Laiko General Hospital
| | - K Konstantopoulos
- Hematology Department, National and Kapodistrian University of Athens, Laiko General Hospital
| | - M Siakantaris
- Hematology Department, National and Kapodistrian University of Athens, Laiko General Hospital
| |
Collapse
|
29
|
Iino C, Shimoyama T. Impact of Helicobacter pylori infection on gut microbiota. World J Gastroenterol 2021; 27:6224-6230. [PMID: 34712028 PMCID: PMC8515792 DOI: 10.3748/wjg.v27.i37.6224] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/13/2021] [Accepted: 09/02/2021] [Indexed: 02/06/2023] Open
Abstract
A number of studies have revealed the association between Helicobacter pylori (H. pylori) infection and the gut microbiota. More than half of the investigations on the impact of H. pylori on the gut microbiota have been the sub-analyses of the influence of eradication therapy. It was observed that H. pylori eradication altered gut microbiota within a short period after eradication, and majority of the alterations took a long period of time to reverse back to the original. Changes in the gut microbiota within a short period after eradication may be attributed to antibiotics and proton pump inhibitors. Modification of gastric acidity in the stomach caused by a long-term H. pylori infection alters the gut microbiota. Analysis of the gut microbiota should be conducted in a large population, adjusting for considerable biases associated with the composition of the gut microbiota, such as age, sex, body mass index, diet and the virulence of H. pylori.
Collapse
Affiliation(s)
- Chikara Iino
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Tadashi Shimoyama
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
- Department of Internal Medicine, Aomori General Health Examination Center, Aomori 030-0962, Japan
| |
Collapse
|
30
|
Yi Z, Zhang M, Ma Z, Tuo B, Liu A, Deng Z, Zhao Y, Li T, Liu X. Role of the posterior mucosal defense barrier in portal hypertensive gastropathy. Biomed Pharmacother 2021; 144:112258. [PMID: 34614465 DOI: 10.1016/j.biopha.2021.112258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 12/15/2022] Open
Abstract
Portal hypertensive gastropathy (PHG) is a complication of cirrhotic or noncirrhotic portal hypertension. PHG is very important in the clinic because it can cause acute or even massive blood loss, and its treatment efficacy and prognosis are poor. Currently, the incidence of PHG in patients with cirrhosis is 20-80%, but its pathogenesis is complicated and poorly understood. Studies have shown that portal hypertension can cause changes in gastric mucosal microcirculation hemodynamics, leading to changes in gastric mucosal histology and function and thereby weakening the mucosal defense barrier. However, no specific drug treatment plans are currently available. This article reviews the current literature to further our understanding of the mechanism underlying PHG and the relationship between PHG and the posterior mucosal defense barrier and to explore new therapeutic targets.
Collapse
Affiliation(s)
- Zhiqiang Yi
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China; Department of Gastroenterology, Fuling Central Hospital of Chongqing City, Chongqing, China
| | - Minglin Zhang
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Zhiyuan Ma
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province, China; Department of Thyroid and Breast Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Biguang Tuo
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province, China
| | - Aimin Liu
- Department of Gastroenterology, Fuling Central Hospital of Chongqing City, Chongqing, China
| | - Zilin Deng
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Yingying Zhao
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Taolang Li
- Department of Thyroid and Breast Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China.
| | - Xuemei Liu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China; Digestive Disease Institute of Guizhou Province, Zunyi, Guizhou Province, China.
| |
Collapse
|
31
|
Mohammadzadeh R, Soleimanpour S, Pishdadian A, Farsiani H. Designing and development of epitope-based vaccines against Helicobacter pylori. Crit Rev Microbiol 2021; 48:489-512. [PMID: 34559599 DOI: 10.1080/1040841x.2021.1979934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori infection is the principal cause of serious diseases (e.g. gastric cancer and peptic ulcers). Antibiotic therapy is an inadequate strategy in H. pylori eradication because of which vaccination is an inevitable approach. Despite the presence of countless vaccine candidates, current vaccines in clinical trials have performed with poor efficacy which makes vaccination extremely challenging. Remarkable advancements in immunology and pathogenic biology have provided an appropriate opportunity to develop various epitope-based vaccines. The fusion of proper antigens involved in different aspects of H. pylori colonization and pathogenesis as well as peptide linkers and built-in adjuvants results in producing epitope-based vaccines with excellent therapeutic efficacy and negligible adverse effects. Difficulties of the in vitro culture of H. pylori, high genetic variation, and unfavourable immune responses against feeble epitopes in the complete antigen are major drawbacks of current vaccine strategies that epitope-based vaccines may overcome. Besides decreasing the biohazard risk, designing precise formulations, saving time and cost, and induction of maximum immunity with minimum adverse effects are the advantages of epitope-based vaccines. The present article is a comprehensive review of strategies for designing and developing epitope-based vaccines to provide insights into the innovative vaccination against H. pylori.
Collapse
Affiliation(s)
- Roghayeh Mohammadzadeh
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Microbiology and Virology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saman Soleimanpour
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Reference Tuberculosis Laboratory, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Pishdadian
- Department of Immunology, School of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Hadi Farsiani
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Microbiology and Virology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
32
|
Tang A, Raja S. Commentary: Does Toll Play the Sole Role? Semin Thorac Cardiovasc Surg 2021; 34:1338-1339. [PMID: 34525391 DOI: 10.1053/j.semtcvs.2021.07.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Andrew Tang
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Siva Raja
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, Ohio.
| |
Collapse
|
33
|
Ahmed AFM, El-Sayad MH, Ali HS, El-Taweel HA. Impact of Coinfection with Schistosoma mansoni on the Antibody Response to Helicobacter pylori. Acta Parasitol 2021; 66:857-862. [PMID: 33598776 DOI: 10.1007/s11686-020-00330-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 12/15/2020] [Indexed: 11/26/2022]
Abstract
PURPOSE In many tropical areas, the coinfection of Schistosoma spp. and other pathogens is frequent. The impact of schistosomiasis on other infections has been demonstrated for several organisms. Infection with the widely spread bacterium, Helicobacter pylori, has been linked to ulcers and tumors of the digestive system with the humoral immune response playing possible modulatory roles. The present study investigated the impact of patent S. mansoni infection on the antibody response to H. pylori. METHODS A total of 100 participants from a schistosomiasis endemic area in Egypt were enrolled in the study. Based on the detection of S. mansoni eggs and H. pylori coproantigen in fecal samples, they were equally divided into four groups: schistosomiasis, concomitant S. mansoni and H. pylori infection, H. pylori infection alone, and healthy controls. Anti-H. pylori IgG and IgA were determined in serum samples using ELISA. RESULTS A significantly lower IgA seropositivity rate and significantly lower IgG levels were found in patients with concomitant schistosomiasis (Gp2) compared to those infected only with H. pylori (Gp1). CONCLUSIONS Concomitant S. mansoni infection with light to moderate intensity alters serological responses to H. pylori. In schistosomiasis endemic areas, the routine examination for H. pylori infection should, therefore, rely on coproantigen level rather than antibody levels. Further studies should investigate histopathological changes and other immunological parameters in coinfection.
Collapse
Affiliation(s)
- Ashraf Fawzy Mosa Ahmed
- Parasitology Department, Medical Research Institute, Alexandria University, 165, Horreya Avenue, Hadara, Alexandria, Egypt
| | - Mona Hassan El-Sayad
- Parasitology Department, Medical Research Institute, Alexandria University, 165, Horreya Avenue, Hadara, Alexandria, Egypt
| | - Hala Shehata Ali
- Parasitology Department, Medical Research Institute, Alexandria University, 165, Horreya Avenue, Hadara, Alexandria, Egypt
| | - Hend Aly El-Taweel
- Parasitology Department, Medical Research Institute, Alexandria University, 165, Horreya Avenue, Hadara, Alexandria, Egypt.
| |
Collapse
|
34
|
Ailloud F, Estibariz I, Suerbaum S. Evolved to vary: genome and epigenome variation in the human pathogen Helicobacter pylori. FEMS Microbiol Rev 2021; 45:5900976. [PMID: 32880636 DOI: 10.1093/femsre/fuaa042] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/31/2020] [Indexed: 12/24/2022] Open
Abstract
Helicobacter pylori is a Gram-negative, spiral shaped bacterium that selectively and chronically infects the gastric mucosa of humans. The clinical course of this infection can range from lifelong asymptomatic infection to severe disease, including peptic ulcers or gastric cancer. The high mutation rate and natural competence typical of this species are responsible for massive inter-strain genetic variation exceeding that observed in all other bacterial human pathogens. The adaptive value of such a plastic genome is thought to derive from a rapid exploration of the fitness landscape resulting in fast adaptation to the changing conditions of the gastric environment. Nevertheless, diversity is also lost through recurrent bottlenecks and H. pylori's lifestyle is thus a perpetual race to maintain an appropriate pool of standing genetic variation able to withstand selection events. Another aspect of H. pylori's diversity is a large and variable repertoire of restriction-modification systems. While not yet completely understood, methylome evolution could generate enough transcriptomic variation to provide another intricate layer of adaptive potential. This review provides an up to date synopsis of this rapidly emerging area of H. pylori research that has been enabled by the ever-increasing throughput of Omics technologies and a multitude of other technological advances.
Collapse
Affiliation(s)
- Florent Ailloud
- Max von Pettenkofer Institute, Faculty of Medicine, LMU München, Pettenkoferstr. 9a, 80336 München, Germany
| | - Iratxe Estibariz
- Max von Pettenkofer Institute, Faculty of Medicine, LMU München, Pettenkoferstr. 9a, 80336 München, Germany
| | - Sebastian Suerbaum
- Max von Pettenkofer Institute, Faculty of Medicine, LMU München, Pettenkoferstr. 9a, 80336 München, Germany.,DZIF Deutsches Zentrum für Infektionsforschung, Partner Site Munich, Pettenkoferstr. 9a, 80336 München, Germany.,National Reference Center for Helicobacter pylori, Pettenkoferstr. 9a, 80336 München, Germany
| |
Collapse
|
35
|
Effects of Lactobacillus salivarius LN12 in Combination with Amoxicillin and Clarithromycin on Helicobacter pylori Biofilm In Vitro. Microorganisms 2021; 9:microorganisms9081611. [PMID: 34442690 PMCID: PMC8399496 DOI: 10.3390/microorganisms9081611] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 12/12/2022] Open
Abstract
Helicobacter pylori is a highly prevalent and harmful gastrointestinal pathogen. Antibiotic resistance and biofilm complexity have led to a decrease in the cure rate. Probiotics are considered to be an adjuvant therapy for clinical Helicobacter pylori infections. However, there is no substantial explanation for the adjuvant role of probiotics on H. pylori biofilm. In this study, the effects of probiotics in combination with amoxicillin (AMX) and clarithromycin (CLR) on H. pylori biofilms were explored in vitro for the first time. The minimum inhibitory concentration (MIC) and the fractional inhibitory concentration (FIC) for H. pylori was determined by the microbroth dilution method, and the plate counting method was used to determine the minimum biofilm removal concentration (MBEC) and survival rate for H. pylori biofilm. The biofilm structure was observed by scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM), protein and polysaccharide contents in extracellular polymeric substances (EPS) were determined by the Bradford method and the phenol-sulfate method, respectively. The gene expression levels of cagA and vacA were evaluated by real-time qPCR. Among the ten H. pylori strains, the clinical strain 3192 showed the strongest film-forming ability, the 3192 biofilms significantly improved the resistance to AMX and CLR, and AMX and CLR showed antagonistic effects on planktonic 3192 cells. When the Lactobacillus salivarius LN12 cell-free supernatant (CFS) was in combination with AMX and CLR, the 3192 biofilm structure was destroyed to a greater extent than when separately; more biofilm biomass and protein in EPS was decreased; and the downregulation effect of the virulence gene vacA was also greater than that of single use. In this study, we suggest that the addition of LN12 to AMX and CLR may enhance the therapeutic effect of triple therapy, especially for the treatment of H. pylori biofilms.
Collapse
|
36
|
Gastric Microenvironment-A Partnership between Innate Immunity and Gastric Microbiota Tricks Helicobacter pylori. J Clin Med 2021; 10:jcm10153258. [PMID: 34362042 PMCID: PMC8347153 DOI: 10.3390/jcm10153258] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/17/2021] [Accepted: 07/21/2021] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori (H. pylori) carcinogenicity depends on three major factors: bacterial virulence constituents, environmental factors and host's genetic susceptibility. The relationship between microenvironmental factors and H. pylori virulence factors are incontestable. H. pylori infection has a major impact on both gastric and colonic microbiota. The presence of non-H. pylori bacteria within the gastric ecosystem is particularly important since they might persistently act as an antigenic stimulus or establish a partnership with H. pylori in order to augment the subsequent inflammatory responses. The gastric ecosystem, i.e., microbiota composition in children with H. pylori infection is dominated by Streptoccocus, Neisseria, Rothia and Staphylococcus. The impairment of this ecosystem enhances growth and invasion of different pathogenic bacteria, further impairing the balance between the immune system and mucosal barrier. Moreover, altered microbiota due to H. pylori infection is involved in increasing the gastric T regulatory cells response in children. Since gastric homeostasis is defined by the partnership between commensal bacteria and host's immune system, this review is focused on how pathogen recognition through toll-like receptors (TLRs-an essential class of pathogen recognition receptors-PRRs) on the surface of macrophages and dendritic cells impact the immune response in the setting of H. pylori infection. Further studies are required for delineate precise role of bacterial community features and of immune system components.
Collapse
|
37
|
Go DM, Lee SH, Lee SH, Woo SH, Kim K, Kim K, Park KS, Park JH, Ha SJ, Kim WH, Choi JH, Kim DY. Programmed Death Ligand 1-Expressing Classical Dendritic Cells MitigateHelicobacter-Induced Gastritis. Cell Mol Gastroenterol Hepatol 2021; 12:715-739. [PMID: 33894424 PMCID: PMC8267570 DOI: 10.1016/j.jcmgh.2021.04.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Helicobacter pylori has been reported to modulate local immune responses to colonize persistently in gastric mucosa. Although the induced expression of programmed cell death ligand 1 (PD-L1) has been suggested as an immune modulatory mechanism for persistent infection of H pylori, the main immune cells expressing PD-L1 and their functions in Helicobacter-induced gastritis still remain to be elucidated. METHODS The blockades of PD-L1 with antibody or PD-L1-deficient bone marrow transplantation were performed in Helicobacter-infected mice. The main immune cells expressing PD-L1 in Helicobacter-infected stomach were determined by flow cytometry and immunofluorescence staining. Helicobacter felis or H pylori-infected dendritic cell (DC)-deficient mouse models including Flt3-/-, Zbtb46-diphtheria toxin receptor, and BDCA2-diphtheria toxin receptor mice were analyzed for pathologic changes and colonization levels. Finally, the location of PD-L1-expressing DCs and the correlation with H pylori infection were analyzed in human gastric tissues using multiplexed immunohistochemistry. RESULTS Genetic or antibody-mediated blockade of PD-L1 aggravated Helicobacter-induced gastritis with mucosal metaplasia. Gastric classical DCs expressed considerably higher levels of PD-L1 than other immune cells and co-localized with T cells in gastritis lesions from Helicobacter-infected mice and human beings. H felis- or H pylori-infected Flt3-/- or classical DC-depleted mice showed aggravated gastritis with severe T-cell and neutrophil accumulation with low bacterial loads compared with that in control mice. Finally, PD-L1-expressing DCs were co-localized with T cells and showed a positive correlation with H pylori infection in human subjects. CONCLUSIONS The PD-1/PD-L1 pathway may be responsible for the immune modulatory function of gastric DCs that protects the gastric mucosa from Helicobacter-induced inflammation, but allows persistent Helicobacter colonization.
Collapse
Affiliation(s)
- Du-Min Go
- Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Seung Hyun Lee
- Department of Life Sciences, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Su-Hyung Lee
- Division of Cancer Biology, Research Institute of National Cancer Center, Gyeonggi-do, Republic of Korea
| | - Sang-Ho Woo
- Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Kibyeong Kim
- Department of Life Sciences, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Kyeongdae Kim
- Department of Life Sciences, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Kyu Seong Park
- Department of Life Sciences, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Jong-Hwan Park
- Laboratory Animal Medicine, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Sang-Jun Ha
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Woo Ho Kim
- Department of Pathology, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jae-Hoon Choi
- Department of Life Sciences, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea.
| | - Dae-Yong Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea.
| |
Collapse
|
38
|
Altunöz D, Sayi Yazgan A. Helicobacter-stimulated IL-10-producing B cells suppress differentiation of lipopolysaccharide/Helicobacter felis-activated stimulatory dendritic cells. ACTA ACUST UNITED AC 2021; 45:214-224. [PMID: 33907502 PMCID: PMC8068769 DOI: 10.3906/biy-2012-11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/24/2021] [Indexed: 01/09/2023]
Abstract
Regulatory B cells (Bregs) produce antiinflammatory cytokines and inhibits proinflammatory response. Recently, immunosuppressive roles of Bregs in the effector functions of dendritic cells (DCs) were demonstrated. However, cross talk between Bregs and DCs in Helicobacter infection remains unknown. Here, we showed that direct stimulation of bone marrow-derived DCs (BM-DCs) with Helicobacter felis (H. felis) antigen upregulates their CD86 surface expression and causes the production of interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), interleukin-12 (IL-12), and interleukin-10 (IL-10). Furthermore, prestimulation of DCs with supernatants derived from both Helicobacter-stimulated IL-10– B (Hfstim-IL-10– B) or IL-10+ B (Hfstim-IL-10+) cells suppresses the secretion of TNF-α and IL-6, but does not affect the expression of CD86 and secretion of IL-12 by lipopolysaccharide (LPS) or H. felis-activated BM-DCs. Remarkably, soluble factors secreted by Hfstim-IL-10– B cells, but not by Hfstim-IL-10+ B cells, suppress the secretion of IL-10 by BM-DCs upon subsequent LPS stimulation. In contrast, prestimulation with BM-DCs with supernatants of Hfstim-IL-10+ B cells before H. felis antigen stimulation induces significantly their IL-10 production. Collectively, our data indicated that prestimulation with soluble factors secreted by Hfstim-IL-10+ B cells, DCs exhibit a tolerogenic phenotype in response to LPS or Helicobacter antigen by secreting high levels of IL-10, but decreased levels of IL-6 and TNF-α.
Collapse
Affiliation(s)
- Doğuş Altunöz
- Department of Molecular Biology and Genetics, Faculty of Science and Letters, İstanbul Technical University, İstanbul Turkey
| | - Ayça Sayi Yazgan
- Department of Molecular Biology and Genetics, Faculty of Science and Letters, İstanbul Technical University, İstanbul Turkey
| |
Collapse
|
39
|
The Role of Formyl Peptide Receptors in Permanent and Low-Grade Inflammation: Helicobacter pylori Infection as a Model. Int J Mol Sci 2021; 22:ijms22073706. [PMID: 33918194 PMCID: PMC8038163 DOI: 10.3390/ijms22073706] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/27/2021] [Accepted: 03/30/2021] [Indexed: 12/14/2022] Open
Abstract
Formyl peptide receptors (FPRs) are cell surface pattern recognition receptors (PRRs), belonging to the chemoattractant G protein-coupled receptors (GPCRs) family. They play a key role in the innate immune system, regulating both the initiation and the resolution of the inflammatory response. FPRs were originally identified as receptors with high binding affinity for bacteria or mitochondria N-formylated peptides. However, they can also bind a variety of structurally different ligands. Among FPRs, formyl peptide receptor-like 1 (FPRL1) is the most versatile, recognizing N-formyl peptides, non-formylated peptides, and synthetic molecules. In addition, according to the ligand nature, FPRL1 can mediate either pro- or anti-inflammatory responses. Hp(2-20), a Helicobacter pylori-derived, non-formylated peptide, is a potent FPRL1 agonist, participating in Helicobacter pylori-induced gastric inflammation, thus contributing to the related site or not-site specific diseases. The aim of this review is to provide insights into the role of FPRs in H. pylori-associated chronic inflammation, which suggests this receptor as potential target to mitigate both microbial and sterile inflammatory diseases.
Collapse
|
40
|
Shang W, Wang Y, Liang X, Li T, Shao W, Liu F, Cui X, Wang Y, Lv L, Chai L, Qu L, Zheng L, Jia J. SETDB1 promotes gastric carcinogenesis and metastasis via upregulation of CCND1 and MMP9 expression. J Pathol 2021; 253:148-159. [PMID: 33044755 DOI: 10.1002/path.5568] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 09/20/2020] [Accepted: 10/07/2020] [Indexed: 12/19/2022]
Abstract
SETDB1 is a histone lysine methyltransferase that has critical roles in cancers. However, its potential role in gastric cancer (GC) remains obscure. Here, we mainly investigate the clinical significance and the possible role of SETDB1 in GC. We find that SETDB1 expression is upregulated in GC tissues and its high-level expression was a predictor of poor prognosis in patients. Overexpression of SETDB1 promoted cell proliferation and metastasis, while SETDB1 suppression had an opposite effect both in vitro and in vivo. Mechanistically, SETDB1 was shown to interact with ERG to promote the transcription of cyclin D1 (CCND1) and matrix metalloproteinase 9 (MMP9) through binding to their promoter regions. In addition, the expression of SETDB1 was also enhanced by the transcription factor TCF4 at the transcriptional level in GC. Furthermore, SETDB1 expression was found to be induced by Helicobacter pylori (H. pylori) infection in a TCF4-dependent manner. Taken together, our results indicate that SETDB1 is aberrantly overexpressed in GC and plays key roles in gastric carcinogenesis and metastasis via upregulation of CCND1 and MMP9. Our work also suggests that SETDB1 could be a potential oncogenic factor and a therapeutic target for GC. © 2020 The Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Wenjing Shang
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
- Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Yue Wang
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Xiuming Liang
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
- Shandong University-Karolinska Institute Collaborative Laboratory for Cancer Research, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Tongyu Li
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Wei Shao
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Fen Liu
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Xiujie Cui
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Yuanyuan Wang
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Lin Lv
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Li Chai
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Lingxin Qu
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Lixin Zheng
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| | - Jihui Jia
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
- Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
- Shandong University-Karolinska Institute Collaborative Laboratory for Cancer Research, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, PR China
| |
Collapse
|
41
|
The Impact of Oxidative Stress in Human Pathology: Focus on Gastrointestinal Disorders. Antioxidants (Basel) 2021; 10:antiox10020201. [PMID: 33573222 PMCID: PMC7910878 DOI: 10.3390/antiox10020201] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 12/15/2022] Open
Abstract
Accumulating evidence shows that oxidative stress plays an essential role in the pathogenesis and progression of many diseases. The imbalance between the production of reactive oxygen species (ROS) and the antioxidant systems has been extensively studied in pulmonary, neurodegenerative cardiovascular disorders; however, its contribution is still debated in gastrointestinal disorders. Evidence suggests that oxidative stress affects gastrointestinal motility in obesity, and post-infectious disorders by favoring the smooth muscle phenotypic switch toward a synthetic phenotype. The aim of this review is to gain insight into the role played by oxidative stress in gastrointestinal pathologies (GIT), and the involvement of ROS in the signaling underlying the muscular alterations of the gastrointestinal tract (GIT). In addition, potential therapeutic strategies based on the use of antioxidants for the treatment of inflammatory gastrointestinal diseases are reviewed and discussed. Although substantial progress has been made in identifying new techniques capable of assessing the presence of oxidative stress in humans, the biochemical-molecular mechanisms underlying GIT mucosal disorders are not yet well defined. Therefore, further studies are needed to clarify the mechanisms through which oxidative stress-related signaling can contribute to the alteration of the GIT mucosa in order to devise effective preventive and curative therapeutic strategies
Collapse
|
42
|
Gorlé N, Bauwens E, Haesebrouck F, Smet A, Vandenbroucke RE. Helicobacter and the Potential Role in Neurological Disorders: There Is More Than Helicobacter pylori. Front Immunol 2021; 11:584165. [PMID: 33633723 PMCID: PMC7901999 DOI: 10.3389/fimmu.2020.584165] [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: 07/16/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
Trillions of symbiotic microbial cells colonize our body, of which the larger part is present in the human gut. These microbes play an essential role in our health and a shift in the microbiome is linked to several diseases. Recent studies also suggest a link between changes in gut microbiota and neurological disorders. Gut microbiota can communicate with the brain via several routes, together called the microbiome–gut–brain axis: the neuronal route, the endocrine route, the metabolic route and the immunological route. Helicobacter is a genus of Gram-negative bacteria colonizing the stomach, intestine and liver. Several papers show the role of H. pylori in the development and progression of neurological disorders, while hardly anything is known about other Helicobacter species and the brain. We recently reported a high prevalence of H. suis in patients with Parkinson’s disease and showed an effect of a gastric H. suis infection on the mouse brain homeostasis. Here, we discuss the potential role of H. suis in neurological disorders and how it may affect the brain via the microbiome–gut–brain axis.
Collapse
Affiliation(s)
- Nina Gorlé
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Eva Bauwens
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Freddy Haesebrouck
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Annemieke Smet
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Roosmarijn E Vandenbroucke
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, Ghent, Belgium
| |
Collapse
|
43
|
Shedding Light on the African Enigma: In Vitro Testing of Homo sapiens-Helicobacter pylori Coevolution. Microorganisms 2021; 9:microorganisms9020240. [PMID: 33503840 PMCID: PMC7912213 DOI: 10.3390/microorganisms9020240] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 12/27/2022] Open
Abstract
The continuous characterization of genome-wide diversity in population and case–cohort samples, allied to the development of new algorithms, are shedding light on host ancestry impact and selection events on various infectious diseases. Especially interesting are the long-standing associations between humans and certain bacteria, such as the case of Helicobacter pylori, which could have been strong drivers of adaptation leading to coevolution. Some evidence on admixed gastric cancer cohorts have been suggested as supporting Homo-Helicobacter coevolution, but reliable experimental data that control both the bacterium and the host ancestries are lacking. Here, we conducted the first in vitro coinfection assays with dual human- and bacterium-matched and -mismatched ancestries, in African and European backgrounds, to evaluate the genome wide gene expression host response to H. pylori. Our results showed that: (1) the host response to H. pylori infection was greatly shaped by the human ancestry, with variability on innate immune system and metabolism; (2) African human ancestry showed signs of coevolution with H. pylori while European ancestry appeared to be maladapted; and (3) mismatched ancestry did not seem to be an important differentiator of gene expression at the initial stages of infection as assayed here.
Collapse
|
44
|
Tsugawa H, Suzuki H. Oxidative stress in stomach cancer. Cancer 2021. [DOI: 10.1016/b978-0-12-819547-5.00005-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
45
|
Gobert AP, Finley JL, Latour YL, Asim M, Smith TM, Verriere TG, Barry DP, Allaman MM, Delagado AG, Rose KL, Calcutt MW, Schey KL, Sierra JC, Piazuelo MB, Mirmira RG, Wilson KT. Hypusination Orchestrates the Antimicrobial Response of Macrophages. Cell Rep 2020; 33:108510. [PMID: 33326776 PMCID: PMC7812972 DOI: 10.1016/j.celrep.2020.108510] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 10/28/2020] [Accepted: 11/18/2020] [Indexed: 12/21/2022] Open
Abstract
Innate responses of myeloid cells defend against pathogenic bacteria via inducible effectors. Deoxyhypusine synthase (DHPS) catalyzes the transfer of the N-moiety of spermidine to the lysine-50 residue of eukaryotic translation initiation factor 5A (EIF5A) to form the amino acid hypusine. Hypusinated EIF5A (EIF5AHyp) transports specific mRNAs to ribosomes for translation. We show that DHPS is induced in macrophages by two gastrointestinal pathogens, Helicobacter pylori and Citrobacter rodentium, resulting in enhanced hypusination of EIF5A. EIF5AHyp was also increased in gastric macrophages from patients with H. pylori gastritis. Furthermore, we identify the bacteria-induced immune effectors regulated by hypusination. This set of proteins includes essential constituents of antimicrobial response and autophagy. Mice with myeloid cell-specific deletion of Dhps exhibit reduced EIF5AHyp in macrophages and increased bacterial burden and inflammation. Thus, regulation of translation through hypusination is a critical hallmark of the defense of eukaryotic hosts against pathogenic bacteria. Gobert et al. demonstrate that hypusination, a specific mechanism regulating translation, is induced in macrophages by bacteria. Hypusination is required for the translation of inducible antimicrobial effectors. Mice that specifically lack hypusination in macrophages are highly susceptible to Helicobacter pylori and Citrobacter rodentium, two pathogens of the gastrointestinal tract.
Collapse
Affiliation(s)
- Alain P Gobert
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
| | - Jordan L Finley
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Yvonne L Latour
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Mohammad Asim
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Thaddeus M Smith
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Thomas G Verriere
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Daniel P Barry
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Margaret M Allaman
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Alberto G Delagado
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Kristie L Rose
- Department of Biochemistry, Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - M Wade Calcutt
- Department of Biochemistry, Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Kevin L Schey
- Department of Biochemistry, Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Johanna C Sierra
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - M Blanca Piazuelo
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Raghavendra G Mirmira
- Translational Research Center, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Keith T Wilson
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA; Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN 37232, USA.
| |
Collapse
|
46
|
Tao ZH, Han JX, Fang JY. Helicobacter pylori infection and eradication: Exploring their impacts on the gastrointestinal microbiota. Helicobacter 2020; 25:e12754. [PMID: 32876377 DOI: 10.1111/hel.12754] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/12/2020] [Accepted: 08/03/2020] [Indexed: 12/16/2022]
Abstract
The rapid development of microbiota research has remolded our view of human physiological and pathological processes. Among all the gastrointestinal microorganisms, Helicobacter pylori (H pylori) is probably the most notorious constituent. Although half of the adults worldwide are infected with H pylori, their clinical manifestations vary widely, suggesting other microorganisms beyond H pylori may play a role in determining clinical outcomes. Recently, many studies have put effort into elucidating the crosstalk within the human microbiota, some of which specifically explored the interplay between H pylori and other gastrointestinal microbial members. In this work, we reviewed these potential interactions. Meanwhile, the impacts of H pylori eradication therapy on gastrointestinal microbial homeostasis were summarized in terms of diversity, composition, functional capacity, and antibiotic resistance.
Collapse
Affiliation(s)
- Zhi-Hang Tao
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ministry of Health, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ji-Xuan Han
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ministry of Health, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing-Yuan Fang
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ministry of Health, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
47
|
Radziejewska I, Borzym-Kluczyk M, Leszczyńska K. Luteolin alters MUC1 extracellular domain, sT antigen, ADAM-17, IL-8, IL-10 and NF-κB expression in Helicobacter pylori-infected gastric cancer CRL-1739 cells: A preliminary study. Biomed Rep 2020; 14:19. [PMID: 33335725 PMCID: PMC7739866 DOI: 10.3892/br.2020.1395] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022] Open
Abstract
Luteolin is a natural flavonoid possessing certain beneficial pharmacological properties, including anti-oxidant, anti-inflammatory, anti-microbial and anti-cancer properties. The majority of types of gastric cancer with chronic gastritis are caused by infection with Helicobacter pylori (H. pylori). The present study evaluated the effect of luteolin on a number of selected factors that are potentially involved in gastric cancer development. The study was performed using gastric cancer CRL-1739 cells treated with 30 µM luteolin and H. pylori alone or combined. ELISA and reverse transcription PCR were used to assess the expression levels of MUC1, GalNAcα-R (Tn antigen) and NeuAcα2-3Galβ1-3GalNAc-R (sT antigen), ADAM-17, IL-8, IL-10 and NF-κB. H. pylori and luteolin independently and in combination significantly reduced the expression levels of the extracellular domain of MUC1 in gastric cancer cells compared with the untreated control cells. ADAM-17 expression was reduced by treatment with the pathogen and luteolin. Additionally, both factors reduced sT antigen expression. Treatment with 30 ≤M luteolin significantly induced IL-8 expression at the mRNA and protein level, and the mRNA expression levels of IL-10 and NF-κB compared with the control. Both H. pylori and luteolin induced IL-8 protein expression. The present preliminary results suggest that luteolin may be used to treat patients with gastric cancer.
Collapse
Affiliation(s)
- Iwona Radziejewska
- Department of Medical Chemistry, Medical University of Bialystok, Bialystok, 15-222 Podlaskie Voivodeship, Poland
| | - Małgorzata Borzym-Kluczyk
- Department of Pharmaceutical Biochemistry, Medical University of Bialystok, Bialystok, 15-222 Podlaskie Voivodeship, Poland
| | - Katarzyna Leszczyńska
- Department of Microbiology, Medical University of Bialystok, Bialystok, 15-222 Podlaskie Voivodeship, Poland
| |
Collapse
|
48
|
Xin GY, Li WG, Suman TY, Jia PP, Ma YB, Pei DS. Gut bacteria Vibrio sp. and Aeromonas sp. trigger the expression levels of proinflammatory cytokine: First evidence from the germ-free zebrafish. FISH & SHELLFISH IMMUNOLOGY 2020; 106:518-525. [PMID: 32810528 DOI: 10.1016/j.fsi.2020.08.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 08/01/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
Gut microbiota plays a central part in the regulation of multiple host metabolic pathways, such as homeostasis, immunostasis, mucosa permeability, and even brain development. Though, slight known about the function of an individual gut bacterium in zebrafish. In this study, germ-free (GF) and conventionally reared (CV) zebrafish models utilized for studying the role of gut bacteria Vibrio sp. and Aeromonas sp. After the analysis of gut microbial profile in zebrafish male and female at three-month age, Proteobacteria and Fusobacteria dominated the main composition of zebrafish intestinal microflora. However, the relative richness of them was different base on gender variance. Aeromonas sp. and Vibrio sp. belonging to Proteobacteria phylum of bacteria were isolated from zebrafish gut, and their potential capacities to trigger innate immunity were investigated. In gut microbiota absence, the expression levels of the innate immunity genes in the GF group were not significantly changed compared to the CV group. After exposure to Aeromonas sp. and Vibrio sp., the expression levels of myd88, TLRs-, and inflammation-related genes were increased in both GF and CV groups, except tlr2 and NLRs-related genes. However, the expression level of NF-κB and JNK/AP-1 pathway genes were all decreased after exposure to Aeromonas sp. and Vibrio sp. in both GF and CV groups. Interestingly, inflammation-related genes (tnfa, tnfb, and il1β) were activated in the CV group, and there were not significantly changed in the GF group, indicating that other bacteria were indispensable for Aeromonas sp. or Vibrio sp. to activate the inflammation response. Taken together, this is the first study of gut bacteria Vibrio sp. and Aeromonas sp. prompting the innate immune response using the GF and CV zebrafish model.
Collapse
Affiliation(s)
- Guang-Yuan Xin
- College of Life Science, Henan Normal University, Xinxiang, 453007, Henan, China; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Wei-Guo Li
- College of Life Science, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Thodhal Yoganandham Suman
- College of Life Science, Henan Normal University, Xinxiang, 453007, Henan, China; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Pan-Pan Jia
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Yan-Bo Ma
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - De-Sheng Pei
- College of Life Science, Henan Normal University, Xinxiang, 453007, Henan, China; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
| |
Collapse
|
49
|
Murray BO, Dawson RA, Alsharaf LM, Anne Winter J. Protective effects of Helicobacter pylori membrane vesicles against stress and antimicrobial agents. MICROBIOLOGY (READING, ENGLAND) 2020; 166:751-758. [PMID: 32463354 PMCID: PMC7641381 DOI: 10.1099/mic.0.000934] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/01/2020] [Indexed: 12/11/2022]
Abstract
Outer-membrane vesicles (OMVs) produced by Helicobacter pylori deliver bacterial components to host cells, provide a mechanism for stabilization of secreted components and may allow the bacteria to exert 'long-range' effects in the gastric niche, promoting persistence. In addition to their well-characterized host cell interactions, membrane vesicles improve stress survival in other bacterial species, and are constitutively produced by both pathogenic and non-pathogenic bacteria. We aimed to determine whether OMVs could improve H. pylori survival of a range of stressors. The effects of purified OMVs on the resistance of H. pylori to a range of environmental and antimicrobial stresses were determined using growth curves and survival assays. Addition of purified OMVs to H. pylori cultures provided dose-dependent protection against hydrogen peroxide-mediated killing. Supplementation with OMVs also partially protected H. pylori against the bactericidal effects of the antibiotics clarithromycin and levofloxacin, but not against amoxicillin nor metronidazole. Addition of purified OMVs allowed H. pylori to grow in the presence of inhibitory concentrations of the antimicrobial peptide LL-37. In the presence of 50 µg OMVs ml-1, significantly enhanced H. pylori growth was observed at higher LL-37 concentrations compared with lower LL-37 concentrations, suggesting that OMV-LL-37 interactions might facilitate release of growth-promoting nutrients. Taken together, these data indicate that production of membrane vesicles could help H. pylori to survive exposure to antibiotics and host antimicrobial defences during infection.
Collapse
Affiliation(s)
- Benjamin Oliver Murray
- School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
- Centre for Urological Biology, Department of Renal Medicine, Division of Medicine, University College London, London, UK
| | - Robin Andrew Dawson
- School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
- School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Lolwah Mohammad Alsharaf
- School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
- Al-Amiri Hospital, Ministry of Health, Kuwait City, Kuwait
| | - Jody Anne Winter
- School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
| |
Collapse
|
50
|
Helicobacter pylori Oncogenicity: Mechanism, Prevention, and Risk Factors. ScientificWorldJournal 2020; 2020:3018326. [PMID: 32765194 PMCID: PMC7374235 DOI: 10.1155/2020/3018326] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/04/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) is the most common cause of gastric ulcer; however, its association with gastric cancer has been proved through a variety of studies. Importantly, H. pylori infection affects around half of the world's population leading to a variety of gastric problems and is mostly present in asymptomatic form. Although about 20% of people infected with H. pylori develop preneoplastic gastric lesions in later stages of their life, around 2% of infected individuals develop gastric cancer. Nevertheless, the outcome of H. pylori infection is determined by complex interaction between the host genetics, its environment, and virulence factors of infecting strain. There are several biomarkers/traits of H. pylori that have been linked with the onset of cancer. Among these, presence of certain major virulence factors including cytotoxin-associated gene A (CagA), vacuolating cytotoxin (VacA), and outer inflammatory protein A (OipA) plays a significant role in triggering gastric cancer. These factors of H. pylori make it a potent carcinogen. Therefore, eradication of H. pylori infection has shown positive effects on decreasing the risk of gastric cancer, but this has become a challenge due to the development of antibiotic resistance in H. pylori against the antibiotics of choice. Thus, the unmet need is to develop new and effective treatments for H. pylori infection, considering the antimicrobial resistance in different regions of the world. This review discusses the properties of H. pylori associated with increased risk of gastric cancer, antibiotic resistance pattern, and the possible role of eradication of H. pylori in preventing gastric cancer.
Collapse
|