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El Filaly H, Desterke C, Outlioua A, Badre W, Rabhi M, Karkouri M, Riyad M, Khalil A, Arnoult D, Akarid K. CXCL-8 as a signature of severe Helicobacter pylori infection and a stimulator of stomach region-dependent immune response. Clin Immunol 2023; 252:109648. [PMID: 37209806 DOI: 10.1016/j.clim.2023.109648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 05/22/2023]
Abstract
Helicobacter pylori infection is involved in development of diverse gastro-pathologies. Our aim is to investigate potential signature of cytokines-chemokine levels (IL-17A, IL-1β, and CXCL-8) in H. pylori-infected patients and their impact on immune response in both corpus and antrum. Multivariate level analysis with machine learning model were carried out using cytokines/chemokine levels of infected Moroccan patients. In addition, Geo dataset was used to run enrichment analysis following CXCL-8 upregulation. Our analysis showed that combination of cytokines-chemokine levels allowed prediction of positive H. pylori density score with <5% of miss-classification error, with fundus CXCL-8 being the most important variable for this discrimination. Furthermore, CXCL-8 dependent expression profile was mainly associated to IL6/JAK/STAT3 signaling in the antrum, interferons alpha and gamma responses in the corpus and commonly induced transcriptional /proliferative activities. To conclude, CXCL-8 level might be a signature of Moroccan H. pylori-infected patients and an inducer of regional-dependent immune response at the gastric level. Larger trials must be carried out to validate the relevance of these results for diverse populations.
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Affiliation(s)
- Hajar El Filaly
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
| | - Christophe Desterke
- INSERM UMRS-1311, Faculty of Medicine, University of Paris-Saclay, Villejuif, France; Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
| | - Ahmed Outlioua
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
| | - Wafaa Badre
- Gastroenterology Department, CHU IbnRochd, Casablanca, Morocco
| | - Moncef Rabhi
- Diagnostic Center, Hôpital Militaire d'Instruction Mohammed V, Mohammed V University, Rabat, Morocco
| | - Mehdi Karkouri
- Laboratory of Pathological Anatomy, CHU Ibn Rochd/Faculty of Medicine and Pharmacy, UH2C, Casablanca, Morocco
| | - Myriam Riyad
- Research Team on Immunopathology of Infectious and Systemic Diseases, Laboratory of Cellular and Molecular Pathology, Faculty of Medicine and Pharmacy, UH2C, Casablanca, Morocco
| | - Abdelouahed Khalil
- Research Center on Aging, Faculty of Medicine and Health Sciences, Department of Medicine, University of Sherbrooke, Sherbrooke, Quebec, Canada
| | - Damien Arnoult
- INSERM, UMR_S 1197, Hôpital Paul Brousse, Villejuif, France; Université Paris-Saclay, Paris, France
| | - Khadija Akarid
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco.
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2
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Sarkar S, Alipour Talesh G, Menheniott TR, Sutton P. Targeting Host Sulphonyl Urea Receptor 2 Can Reduce Severity of Helicobacter pylori Associated Gastritis. GASTRO HEP ADVANCES 2023; 2:721-732. [PMID: 39129876 PMCID: PMC11307979 DOI: 10.1016/j.gastha.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 03/06/2023] [Indexed: 08/13/2024]
Abstract
Background and Aims While most Helicobacter pylori-infected individuals remain asymptomatic throughout their lifetime, in a significant proportion, the resulting severe chronic gastritis drives the development of gastric cancer. In this study, we examine a new therapeutic target, a host potassium channel regulatory subunit, SUR2 (encoded by ABCC9), with potential to protect against H pylori-associated diseases. Methods SUR2 gene (ABCC9) expression in human gastric biopsies was analyzed by quantitative polymerase chain reactions. Helicobacter-infected mice were administered the SUR2-channel agonists, pinacidil and nicorandil, then gastric tissues analyzed by histology, immunohistochemistry and quantitative polymerase chain reaction, and splenic tissues by enzyme-linked immunosorbent assays. In vitro studies were performed on human and mouse macrophages, human gastric epithelial cells and mouse splenocytes. Results ABCC9 expression in human and mouse stomachs is downregulated with H pylori infection. Treatment of Helicobacter-infected mice with SUR2 channel modulators, pinacidil or nicorandil, significantly reduced gastritis severity. In gastric epithelial cells, nicorandil-induced opening of the SUR2 channel increased intracellular K+ and prevented H pylori-mediated Ca2+ influx and downstream pro-inflammatory signaling. Conclusion SUR2 is a novel host factor that regulates Helicobacter pathogenesis. Pharmacological targeting of SUR2 provides a potential approach for reducing the severity of H pylori-associated gastritis, without eradicating infection.
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Affiliation(s)
- Sohinee Sarkar
- Infection and Immunity, Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - Ghazal Alipour Talesh
- Infection and Immunity, Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - Trevelyan R. Menheniott
- Infection and Immunity, Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - Philip Sutton
- Infection and Immunity, Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
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3
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Panagi I, Thurston TL. Ready, STAT3, Go! Bacteria in the race for M2 macrophage polarisation. Curr Opin Microbiol 2023; 73:102285. [PMID: 36857844 DOI: 10.1016/j.mib.2023.102285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 03/03/2023]
Abstract
Despite macrophages representing professional immune cells that are integral to the host defences against microbial threats, several intracellular bacteria not only infect, but survive, replicate and often persist in these cells. This is perhaps possible because not all macrophages are the same. Instead, macrophages are loosely divided into two classes: the M1 'classically activated' pro-inflammatory subset and the M2 'alternatively activated' cells that are generally anti-inflammatory and infection-permissive. In this review, we summarise recent findings explaining how several intracellular pathogens, often using secreted effectors, rewire host circuitry in favour of an anti-inflammatory niche. A common theme is the phosphorylation and activation of the signal transducer and activator of transcription-3 (STAT3) transcription factor. We describe and compare the diverse mechanisms employed and reflect how such non-canonical processes may have evolved to circumvent regulation by the host, providing a potent means by which different pathogens manipulate the cells they infect.
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Affiliation(s)
- Ioanna Panagi
- MRC Centre for Molecular Bacteriology and Infection, Department of Infectious Disease, Imperial College London, SW7 2AZ, UK
| | - Teresa Lm Thurston
- MRC Centre for Molecular Bacteriology and Infection, Department of Infectious Disease, Imperial College London, SW7 2AZ, UK.
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4
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Wang H, Zhao M, Shi F, Zheng S, Xiong L, Zheng L. A review of signal pathway induced by virulent protein CagA of Helicobacter pylori. Front Cell Infect Microbiol 2023; 13:1062803. [PMID: 37124036 PMCID: PMC10140366 DOI: 10.3389/fcimb.2023.1062803] [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: 10/06/2022] [Accepted: 03/24/2023] [Indexed: 05/02/2023] Open
Abstract
Gastric cancer (GC), a common and high-mortality disease, still occupies an important position in current cancer research, and Helicobacter pylori (H. pylori) infection as its important risk factor has been a hot and challenging research area. Among the numerous pathogenic factors of H. pylori, the virulence protein CagA has been widely studied as the only bacterial-derived oncoprotein. It was found that CagA entering into gastric epithelial cells (GECs) can induce the dysregulation of multiple cellular pathways such as MAPK signaling pathway, PI3K/Akt signaling pathway, NF-κB signaling pathway, Wnt/β-catenin signaling pathway, JAK-STAT signaling pathway, Hippo signaling pathway through phosphorylation and non-phosphorylation. These disordered pathways cause pathological changes in morphology, adhesion, polarity, proliferation, movement, and other processes of GECs, which eventually promotes the occurrence of GC. With the deepening of H. pylori-related research, the research on CagA-induced abnormal signaling pathway has been updated and deepened to some extent, so the key signaling pathways activated by CagA are used as the main stem to sort out the pathogenesis of CagA in this paper, aiming to provide new strategies for the H. pylori infection and treatment of GC in the future.
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Affiliation(s)
- Haiqiang Wang
- Department of Internal Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Mei Zhao
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Fan Shi
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Shudan Zheng
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Li Xiong
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Lihong Zheng
- Department of Internal Medicine, Fourth Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- *Correspondence: Lihong Zheng,
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5
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Huang B, Lang X, Li X. The role of IL-6/JAK2/STAT3 signaling pathway in cancers. Front Oncol 2022; 12:1023177. [PMID: 36591515 PMCID: PMC9800921 DOI: 10.3389/fonc.2022.1023177] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
Interleukin-6 (IL-6) is a pleiotropic cytokine involved in immune regulation. It can activate janus kinase 2 (JAK2)-signal transducer and activator of transcription 3 (STAT3) signaling pathway. As one of the important signal transduction pathways in cells, JAK2/STAT3 signaling pathway plays a critical role in cell proliferation and differentiation by affecting the activation state of downstream effector molecules. The activation of JAK2/STAT3 signaling pathway is involved in tumorigenesis and development. It contributes to the formation of tumor inflammatory microenvironment and is closely related to the occurrence and development of many human tumors. This article focuses on the relationship between IL-6/JAK2/STAT3 signaling pathway and liver cancer, breast cancer, colorectal cancer, gastric cancer, lung cancer, pancreatic cancer and ovarian cancer, hoping to provide references for the research of cancer treatment targeting key molecules in IL-6/JAK2/STAT3 signaling pathway.
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Affiliation(s)
- Bei Huang
- Operational Management Office, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Xiaoling Lang
- Operational Management Office, West China Second University Hospital, Sichuan University, Chengdu, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China,*Correspondence: Xiaoling Lang, ; Xihong Li,
| | - Xihong Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China,Emergency Department, West China Second University Hospital, Sichuan University, Chengdu, China,*Correspondence: Xiaoling Lang, ; Xihong Li,
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6
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Patrad E, Khalighfard S, Amiriani T, Khori V, Alizadeh AM. Molecular mechanisms underlying the action of carcinogens in gastric cancer with a glimpse into targeted therapy. Cell Oncol 2022; 45:1073-1117. [PMID: 36149600 DOI: 10.1007/s13402-022-00715-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gastric cancer imposes a substantial global health burden despite its overall incidence decrease. A broad spectrum of inherited, environmental and infectious factors contributes to the development of gastric cancer. A profound understanding of the molecular underpinnings of gastric cancer has lagged compared to several other tumors with similar incidence and morbidity rates, owing to our limited knowledge of the role of carcinogens in this malignancy. The International Agency for Research on Cancer (IARC) has classified gastric carcinogenic agents into four groups based on scientific evidence from human and experimental animal studies. This review aims to explore the potential comprehensive molecular and biological impacts of carcinogens on gastric cancer development and their interactions and interferences with various cellular signaling pathways. CONCLUSIONS In this review, we highlight recent clinical trial data reported in the literature dealing with different ways to target various carcinogens in gastric cancer. Moreover, we touch upon other multidisciplinary therapeutic approaches such as surgery, adjuvant and neoadjuvant chemotherapy. Rational clinical trials focusing on identifying suitable patient populations are imperative to the success of single-agent therapeutics. Novel insights regarding signaling pathways that regulate gastric cancer can potentially improve treatment responses to targeted therapy alone or in combination with other/conventional treatments. Preventive strategies such as control of H. pylori infection through eradication or immunization as well as dietary habit and lifestyle changes may reduce the incidence of this multifactorial disease, especially in high prevalence areas. Further in-depth understanding of the molecular mechanisms involved in the role of carcinogenic agents in gastric cancer development may offer valuable information and update state-of-the-art resources for physicians and researchers to explore novel ways to combat this disease, from bench to bedside. A schematic outlining of the interaction between gastric carcinogenic agents and intracellular pathways in gastric cancer H. pylori stimulates multiple intracellular pathways, including PI3K/AKT, NF-κB, Wnt, Shh, Ras/Raf, c-MET, and JAK/STAT, leading to epithelial cell proliferation and differentiation, apoptosis, survival, motility, and inflammatory cytokine release. EBV can stimulate intracellular pathways such as the PI3K/Akt, RAS/RAF, JAK/STAT, Notch, TGF-β, and NF-κB, leading to cell survival and motility, proliferation, invasion, metastasis, and the transcription of anti-apoptotic genes and pro-inflammatory cytokines. Nicotine and alcohol can lead to angiogenesis, metastasis, survival, proliferation, pro-inflammatory, migration, and chemotactic by stimulating various intracellular signaling pathways such as PI3K/AKT, NF-κB, Ras/Raf, ROS, and JAK/STAT. Processed meat contains numerous carcinogenic compounds that affect multiple intracellular pathways such as sGC/cGMP, p38 MAPK, ERK, and PI3K/AKT, leading to anti-apoptosis, angiogenesis, metastasis, inflammatory responses, proliferation, and invasion. Lead compounds may interact with multiple signaling pathways such as PI3K/AKT, NF-κB, Ras/Raf, DNA methylation-dependent, and epigenetic-dependent, leading to tumorigenesis, carcinogenesis, malignancy, angiogenesis, DNA hypermethylation, cell survival, and cell proliferation. Stimulating signaling pathways such as PI3K/Akt, RAS/RAF, JAK/STAT, WNT, TGF-β, EGF, FGFR2, and E-cadherin through UV ionizing radiation leads to cell survival, proliferation, and immortalization in gastric cancer. The consequence of PI3K/AKT, NF-κB, Ras/Raf, ROS, JAK/STAT, and WNT signaling stimulation by the carcinogenic component of Pickled vegetables and salted fish is the Warburg effect, tumorigenesis, angiogenesis, proliferation, inflammatory response, and migration.
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Affiliation(s)
- Elham Patrad
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Solmaz Khalighfard
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Taghi Amiriani
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Vahid Khori
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ali Mohammad Alizadeh
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.
- Breast Disease Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.
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7
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IL-33 promotes gastric tumour growth in concert with activation and recruitment of inflammatory myeloid cells. Oncotarget 2022; 13:785-799. [PMID: 35677533 PMCID: PMC9159270 DOI: 10.18632/oncotarget.28238] [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: 04/06/2022] [Accepted: 05/07/2022] [Indexed: 01/01/2023] Open
Abstract
Interleukin-33 (IL-33) is an IL-1 family cytokine known to promote T-helper (Th) type 2 immune responses that are often deregulated in gastric cancer (GC). IL-33 is overexpressed in human gastric tumours suggesting a role in driving GC progression although a causal link has not been proven. Here, we investigated the impact of IL-33 genetic deficiency in the well-characterized gp130F/F mouse model of GC. Expression of IL-33 (and it’s cognate receptor, ST2) was increased in human and mouse GC progression. IL-33 deficient gp130F/F/Il33−/− mice had reduced gastric tumour growth and reduced recruitment of pro-tumorigenic myeloid cells including key mast cell subsets and type-2 (M2) macrophages. Cell sorting of gastric tumours revealed that IL-33 chiefly localized to gastric (tumour) epithelial cells and was absent from tumour-infiltrating immune cells (except modest IL-33 enrichment within CD11b+ CX3CR1+CD64+MHCII+ macrophages). By contrast, ST2 was absent from gastric epithelial cells and localized exclusively within the (non-macrophage) immune cell fraction together with mast cell markers, Mcpt1 and Mcpt2. Collectively, we show that IL-33 is required for gastric tumour growth and provide evidence of a likely mechanism by which gastric epithelial-derived IL-33 drives mobilization of tumour-promoting inflammatory myeloid cells.
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8
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Danesh Pouya F, Rasmi Y, Nemati M. Signaling Pathways Involved in 5-FU Drug Resistance in Cancer. Cancer Invest 2022; 40:516-543. [PMID: 35320055 DOI: 10.1080/07357907.2022.2055050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Anti-metabolite drugs prevent the synthesis of essential cell growth compounds. 5-fluorouracil is used as an anti-metabolic drug in various cancers in the first stage of treatment. Unfortunately, in some cancers, 5-fluorouracil has low effectiveness because of its drug resistance. Studies have shown that drug resistance to 5-fluorouracil is due to the activation of specific signaling pathways and increased expressions of enzymes involved in drug metabolites. However, when 5-fluorouracil is used in combination with other drugs, the sensitivity of cancer cells to 5-fluorouracil increases, and the effect of drug resistance is reversed. This study discusses how the function of 5-fluorouracil in JAK/STAT, Wnt, Notch, NF-κB, and hedgehogs in some cancers.
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Affiliation(s)
- Fahima Danesh Pouya
- Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Yousef Rasmi
- Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran.,Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohadeseh Nemati
- Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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9
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Seeneevassen L, Martin OCB, Lehours P, Dubus P, Varon C. Leukaemia inhibitory factor in gastric cancer: friend or foe? Gastric Cancer 2022; 25:299-305. [PMID: 35106710 DOI: 10.1007/s10120-022-01278-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/13/2022] [Indexed: 02/06/2023]
Abstract
IL-6 family cytokine leukaemia inhibitory factor (LIF) study has deciphered a variety of effects, in physiology as well as pathology. Despite the sudden arousal in LIF interest in cancers, its study in the gastric cancer (GC) context has been put aside. Only few related studies can be found in literature, most of them investigating IL-6/STAT3 signalling in GC, and not the particular LIF/LIFRβ signalisation. LIF/LIFR has opposing effects depending on the signalling pathways involved. This review relates the pro- and anti-tumorigenic aspects of LIF/LIFR in GC, taking also into account facts from other types of cancer. A better understanding of these issues would undoubtedly help postulate interesting hypotheses and perspectives for future LIF/LIFR study and its use in GC therapies, where options tend to be limited in number and efficiency.
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Affiliation(s)
- Lornella Seeneevassen
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France
| | - Océane C B Martin
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France
| | - Philippe Lehours
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France.,Centre National de Référence des Helicobacters et Campylobacters, CHU Bordeaux, 33000, Bordeaux, France
| | - Pierre Dubus
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France.,Institute of Pathology and Tumor Biology, CHU Bordeaux, 33000, Bordeaux, France
| | - Christine Varon
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France.
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10
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Yang E, Chua W, Ng W, Roberts TL. Peripheral Cytokine Levels as a Prognostic Indicator in Gastric Cancer: A Review of Existing Literature. Biomedicines 2021; 9:1916. [PMID: 34944729 PMCID: PMC8698340 DOI: 10.3390/biomedicines9121916] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 12/16/2022] Open
Abstract
Although strong connections exist between the carcinogenesis of gastric cancer and chronic inflammation, gastric cancer is unique in that the chronic gastritis which frequently precedes carcinogenesis is strongly associated with H. pylori infection. The interplay between H. pylori virulence factors and host immune cells is complex but culminates in the activation of inflammatory pathways and transcription factors such as NF-κB, STAT3, and AP-1, all of which upregulate cytokine production. Due to the key role of cytokines in modulating the immune response against tumour cells as well as possibly stimulating tumour growth and proliferation, different patterns of cytokine secretion may be associated with varying patient outcomes. In relation to gastric cancer, interleukin-6, 8, 10, 17A, TNF, and IFN-γ may have pro-tumour properties, although interleukin-10, TNF, and IFN-γ may have anti-tumour effects. However, due to the lack of studies investigating patient outcomes, only a link between higher interleukin-6 levels and poorer prognosis has been demonstrated. Further investigations which link peripheral cytokine levels to patient prognosis may elucidate important pathological mechanisms in gastric cancer which adversely impact patient survival and allow treatments targeting these processes to be developed.
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Affiliation(s)
- Elton Yang
- School of Medicine, Western Sydney University, Campbelltown 2560, Australia; (E.Y.); (W.C.); (W.N.)
- Ingham Institute for Applied Medical Research, Liverpool 2170, Australia
| | - Wei Chua
- School of Medicine, Western Sydney University, Campbelltown 2560, Australia; (E.Y.); (W.C.); (W.N.)
- Ingham Institute for Applied Medical Research, Liverpool 2170, Australia
- Medical Oncology, Liverpool Hospital, Liverpool 2170, Australia
- Southwest Sydney Clinical School, University of New South Wales, Liverpool 2170, Australia
| | - Weng Ng
- School of Medicine, Western Sydney University, Campbelltown 2560, Australia; (E.Y.); (W.C.); (W.N.)
- Ingham Institute for Applied Medical Research, Liverpool 2170, Australia
- Medical Oncology, Liverpool Hospital, Liverpool 2170, Australia
- Southwest Sydney Clinical School, University of New South Wales, Liverpool 2170, Australia
| | - Tara Laurine Roberts
- School of Medicine, Western Sydney University, Campbelltown 2560, Australia; (E.Y.); (W.C.); (W.N.)
- Ingham Institute for Applied Medical Research, Liverpool 2170, Australia
- Southwest Sydney Clinical School, University of New South Wales, Liverpool 2170, Australia
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11
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New insights into IL-6 family cytokines in metabolism, hepatology and gastroenterology. Nat Rev Gastroenterol Hepatol 2021; 18:787-803. [PMID: 34211157 DOI: 10.1038/s41575-021-00473-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/20/2021] [Indexed: 02/06/2023]
Abstract
IL-6 family cytokines are defined by the common use of the signal-transducing receptor chain glycoprotein 130 (gp130). Increasing evidence indicates that these cytokines are essential in the regulation of metabolic homeostasis as well as in the pathophysiology of multiple gastrointestinal and liver disorders, thus making them attractive therapeutic targets. Over the past few years, therapies modulating gp130 signalling have grown exponentially in several clinical settings including obesity, cancer and inflammatory bowel disease. A newly engineered gp130 cytokine, IC7Fc, has shown promising preclinical results for the treatment of type 2 diabetes, obesity and liver steatosis. Moreover, drugs that modulate gp130 signalling have shown promise in refractory inflammatory bowel disease in clinical trials. A deeper understanding of the main roles of the IL-6 family of cytokines during homeostatic and pathological conditions, their signalling pathways, sources of production and target cells will be crucial to the development of improved treatments. Here, we review the current state of the role of these cytokines in hepatology and gastroenterology and discuss the progress achieved in translating therapeutics targeting gp130 signalling into clinical practice.
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12
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Gastrokine 2 Regulates the Antitumor Effect of JAK2/STAT3 Pathway in Gastric Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:1343808. [PMID: 34381519 PMCID: PMC8352702 DOI: 10.1155/2021/1343808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/21/2021] [Indexed: 11/18/2022]
Abstract
GKN2 (gastrokine 2) mainly plays a regulatory role in gastric mucosal defense and cell protection mechanisms, and its role in gastric cancer has not been thoroughly elucidated. Immunohistochemistry was used to detect GKN2 and TFF1 expressions in 90 gastric cancer tissues, 48 neoplastic resection margins, and 22 normal gastric mucosa epithelia. It showed that the downregulation of GKN2 and TFF1 expressions in gastric cancer tissues was significantly different from that in adjacent normal gastric tissues and distal gastric mucosal tissues. Nevertheless, correlation analysis showed that GKN2 expression in gastric cancer tissues was independent of TFF1 expression. After overexpression of GKN2 was constructed in human gastric cancer cell line MKN28 with the Ad-GFP-GKN2 transfected, cell viability was measured by CCK-8 assay, and migration and invasion ability were analyzed by transwell migration assay and transwell invasion assay. It indicated that overexpression of GKN2 significantly reduced the viability of MKN28 and SGC7901 cells. Overexpression of GKN2 could also inhibit the migration and invasion ability in MKN28 and SGC7901 cells. In addition, upregulation of GKN2 can inactivate the JAK2/STAT3 pathway. Our data suggest that GKN2 and TFF1 play the antitumor role in gastric carcinoma, and TFF1 may not interact or cooperate with GKN2. GKN2 overexpression can inhibit the growth and metastasis by downregulating the JAK2/STAT3 pathway in gastric cancer cells.
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13
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Tran MTMT, Yeh KT, Chuang YM, Hsu PY, Low JT, Kumari H, Lee YT, Chen YC, Huang WH, Jin H, Lin SH, Chan MWY. Methylomic analysis identifies C11orf87 as a novel epigenetic biomarker for GI cancers. PLoS One 2021; 16:e0250499. [PMID: 33886682 PMCID: PMC8062079 DOI: 10.1371/journal.pone.0250499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 04/08/2021] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer is one of the leading causes of cancer death worldwide. Previous studies demonstrated that activation of STAT3 is crucial for the development and progression of gastric cancer. However, the role of STAT3 in neuronal related gene methylation in gastric cancer has never been explored. In this study, by using DNA methylation microarray, we identified a potential STAT3 target, C11orf87, showing promoter hypomethylation in gastric cancer patients with lower STAT3 activation and AGS gastric cancer cell lines depleted with STAT3 activation. Although C11orf87 methylation is independent of its expression, ectopic expression of a constitutive activated STAT3 mutant upregulated its expression in gastric cancer cell line. Further bisulfite pyrosequencing demonstrated a progressive increase in DNA methylation of this target in patient tissues from gastritis, intestinal metaplasia, to gastric cancer. Intriguingly, patients with higher C11orf87 methylation was associated with better survival. Furthermore, hypermethylation of C11orf87 was also frequently observed in other GI cancers, as compared to their adjacent normal tissues. These results suggested that C11orf87 methylation may serve as a biomarker for diagnosis and prognosis of GI cancers, including gastric cancer. We further postulated that constitutive activation of STAT3 might be able to epigenetically silence C11orf87 as a possible negative feedback mechanism to protect the cells from the overactivation of STAT3. Targeted inhibition of STAT3 may not be appropriate in gastric cancer patients with promoter hypermethylation of C11orf87.
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Affiliation(s)
- Mita T. M. T. Tran
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Epigenomics and Human Disease Research Center, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
| | - Kun-Tu Yeh
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yu-Ming Chuang
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Epigenomics and Human Disease Research Center, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
| | - Po-Yen Hsu
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Epigenomics and Human Disease Research Center, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
| | - Jie-Ting Low
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Epigenomics and Human Disease Research Center, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Division of Gastroenterology, Chang Gung Memorial Hospital, Chia-Yi, Taiwan
| | - Himani Kumari
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Epigenomics and Human Disease Research Center, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
| | - Yu-Ting Lee
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Department of Hematology and Oncology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan
| | - Yin-Chen Chen
- Division of Gastroenterology, Chang Gung Memorial Hospital, Chia-Yi, Taiwan
| | - Wan-Hong Huang
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Epigenomics and Human Disease Research Center, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
| | - Hongchuan Jin
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang, Sir Run Run Shaw Hospital, Medical School of Zhejiang University, Hangzhou, China
| | - Shu-Hui Lin
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
- * E-mail: (SHL); (MWYC)
| | - Michael W. Y. Chan
- Department of Biomedical Sciences, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Epigenomics and Human Disease Research Center, National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung, Chia-Yi, Taiwan
- * E-mail: (SHL); (MWYC)
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14
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Park JM, Han YM, Park YJ, Hahm KB. Dietary intake of walnut prevented <i>Helicobacter pylori</i>-associated gastric cancer through rejuvenation of chronic atrophic gastritis. J Clin Biochem Nutr 2021. [DOI: 10.3164/jcbn.20-103
expr 895872307 + 836645000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Affiliation(s)
| | | | | | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University
- Medpactor Research Institute, Medpacto
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15
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Park JM, An JM, Han YM, Surh YJ, Hwang SJ, Kim SJ, Hahm KB. Walnut polyphenol extracts inhibit Helicobacter pylori-induced STAT3 Tyr705 phosphorylation through activation of PPAR-γ and SOCS1 induction. J Clin Biochem Nutr 2021. [DOI: 10.3164/jcbn.20-105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - Jeong Min An
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University
| | | | | | | | | | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University
- Medpacto Research Institute, Medpacto
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16
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Rostami N, Nikkhoo A, Khazaei-Poul Y, Farhadi S, Sadat Haeri M, Moghadaszadeh Ardebili S, Aghaei Vanda N, Atyabi F, Namdar A, Baghaei M, Haghnavaz N, Kazemi T, Yousefi M, Ghalamfarsa G, Sabz G, Jadidi-Niaragh F. Coinhibition of S1PR1 and GP130 by siRNA-loaded alginate-conjugated trimethyl chitosan nanoparticles robustly blocks development of cancer cells. J Cell Physiol 2020; 235:9702-9717. [PMID: 32424937 DOI: 10.1002/jcp.29781] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 02/06/2023]
Abstract
There is an interconnected network between S1P/sphingosine-1-phosphate receptor 1 (S1PR1), IL-6/glycoprotein 130 (GP130), and signal transducer and activator of transcription 3 (STAT3) signaling pathways in the tumor microenvironment, which leads to cancer progression. S1P/S1PR1 and IL-6/GP130 signaling pathways phosphorylate and activate STAT3, and it then induces the expression of S1PR1 and interleukin-6 (IL-6) in a positive feedback loop leading to cancer progression. We hypothesized that blockade of this amplification loop can suppress the growth and development of cancer cells. Therefore, we silenced STAT3 upstream molecules including the S1PR1 and GP130 molecules in cancer cells using small interfering RNA (siRNA)-loaded alginate-conjugated trimethyl chitosan (ATMC) nanoparticles (NPs). The generated NPs had competent properties including the appropriate size, zeta potential, polydispersity index, morphology, high uptake of siRNA, high rate of capacity, high stability, and low toxicity. We evaluated the effects of siRNA loaded ATMC NPs on tumor hallmarks of three murine-derived cancer cell lines, including 4T1 (breast cancer), B16-F10 (melanoma), and CT26 (colon cancer). The results confirmed the tumor-suppressive effects of combinational targeting of S1PR1 and GP130. Moreover, combination therapy could potently suppress tumor growth as assessed by the chick chorioallantoic membrane assay. In this study, we targeted this positive feedback loop for the first time and applied this novel combination therapy, which provides a promising approach for cancer treatment. The development of a potent nanocarrier system with ATMC for this combination was also another aspect of this study, which should be further investigated in cancer animal models in further studies.
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Affiliation(s)
- Narges Rostami
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Afshin Nikkhoo
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yalda Khazaei-Poul
- Student Research Committee, Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shohreh Farhadi
- Student Research Committee, Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Melika Sadat Haeri
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | | | - Fatemeh Atyabi
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Afshin Namdar
- Department of Oncology, Cross Cancer Institute, The University of Alberta, Edmonton, Alberta, Canada
| | - Masoumeh Baghaei
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Navideh Haghnavaz
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tohid Kazemi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ghasem Ghalamfarsa
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Gholamabas Sabz
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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17
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Chen HY, Hu Y, Lu NH, Zhu Y. Caudal type homeoboxes as a driving force in Helicobacter pylori infection-induced gastric intestinal metaplasia. Gut Microbes 2020; 12:1-12. [PMID: 33031021 PMCID: PMC7553748 DOI: 10.1080/19490976.2020.1809331] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
(H. pylori), a common pathogenic bacterium in the stomach, has been demonstrated to be a major cause of gastric cancer (GC). The typical pathological evolution of H. pylori infection-induced GC involves development from gastric atrophy, via intestinal metaplasia (IM) and dysplasia, to intestinal-type GC. During this process, IM is considered to be an "irreversible point" that significantly increases the risk for GC. Therefore, the elucidation of the mechanism underlying IM is of great significance for the prevention and treatment of gastric mucosal carcinogenesis associated with H. pylori infection. Caudal type homeoboxes (CDXs) are transcription factors involved in intestinal differentiation establishment and the maintenance of normal intestinal mucosa and IM. H. pylori infection increases the expression of CDXs through epigenetic regulation, the nuclear factor-kappaB signaling pathway and its downstream proinflammatory factors, and the transforming growth factor-beta signaling pathway, leading to the progression from normal gastric mucosa to IM. However, the precise mechanisms of gastric intestinal metaplasia have not yet been fully elucidated. In this review, we focus on research progress revealing the functions of CDXs in H. pylori infection-induced IM, as well as the regulators modulating this process.
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Affiliation(s)
- Hong-Yan Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Yi Hu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Nong-Hua Lu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Yin Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China,CONTACT Yin Zhu Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang330006, Jiangxi Province, China
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18
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Ho CH, Lu YC, Fan CK, Yu HJ, Liu HT, Wu CC, Chen KC, Liu SP, Cheng PC. Testosterone regulates the intracellular bacterial community formation of uropathogenic Escherichia coli in prostate cells via STAT3. Int J Med Microbiol 2020; 310:151450. [PMID: 33092696 DOI: 10.1016/j.ijmm.2020.151450] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 08/06/2020] [Accepted: 08/25/2020] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND UPEC can internalize clonally in prostate to form biofilm-like intracellular bacterial communities (IBCs) for recurrent or chronic infection. We previously indicated that the exposure of prostate cells to testosterone could suppress UPEC invasion and their persistent survival within cells by effectively inhibiting the JAK/STAT1 signaling pathway. However, the regulatory mechanism by which testosterone affects UPEC-induced prostatitis via STAT3, another latent transcription factor signaling pathway is still unclear. The present study aimed to clarify the role of STAT3 in the process of UPEC-induced inflammation and colonization in prostate epithelial cells. METHODS The effects of testosterone-mediated inhibition were compared between the prostatitis by different UPEC strains (CFT073 and J96) through the specific GFP-UPEC-infected prostate cell model. Fluorescence microscopy was used for UPEC IBCs detection and quantifying, and Flow cytometry, RT-PCR and western blotting were used for analyzing related gene and protein expressions. Pretreatment of JAK and STAT3 inhibitors were also applied to verify the regulation of transduction pathway in testosterone-mediated anti-UPEC infection. RESULTS This study revealed that testosterone effectively suppresses UPEC infection and IBC formation in prostate cells through the JAK/STAT3 pathway. The results show that CFT073 and J96 UPEC infection rates and colony numbers were dose-dependently reduced in RWPE-1 cells pretreated with 5 and 20 μg/mL testosterone at 0 and 24 h post-infection. Further, testosterone reduced the amounts of UPEC infecting and surviving within the prostate cells, as well as suppressed the size of IBCs formed. We demonstrated that pretreating testosterone effectively inhibited UPEC infection along with dose-dependent suppression of STAT3 and the phosphorylated-STAT3 expression in prostate cells, especially in 24 h J96 UPEC infected groups. The STAT inhibitor, SOCS3 also up-regulated at the same time. In addition, we pretreated the JAK1 or STAT3 inhibitor with testosterone to block the signaling transduction before CFT073 and J96 UPEC infection, and found the significant restoring in both the sizes of IBCs and bacterial numbers in RWPE-1 cells. Therefore, our results suggest that the suppression of STAT3 by testosterone treatment attenuate UPEC growing within IBCs and interfere with their infection to prostate cells. CONCLUSIONS Overall, our study demonstrates that testosterone suppresses the initial infection of prostate epithelial cells by UPEC and reduces the survival of UPEC within IBCs after infection. These results indicate a critical role for STAT3 in facilitating UPEC infection and persistence, and its participation in driving testosterone-suppressive responses in prostate epithelial cells. In conclusion, this study suggests that testosterone may be beneficial in treating clinically recurrent UPEC infections and, thus, the persistent recurrence of prostatic inflammation.
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Affiliation(s)
- Chen-Hsun Ho
- Division of Urology, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Yu-Chuan Lu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Chia-Kwung Fan
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for International Tropical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hong-Jeng Yu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Hsin-Tien Liu
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chia-Chang Wu
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Urology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Kuan-Chou Chen
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Urology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shih-Ping Liu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - Po-Ching Cheng
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for International Tropical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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19
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Park JM, Han YM, Park YJ, Hahm KB. Dietary intake of walnut prevented Helicobacter pylori-associated gastric cancer through rejuvenation of chronic atrophic gastritis. J Clin Biochem Nutr 2020; 68:37-50. [PMID: 33536711 PMCID: PMC7844657 DOI: 10.3164/jcbn.20-103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 07/07/2020] [Indexed: 12/16/2022] Open
Abstract
The fact that Fat-1 transgenic mice producing n-3 polyunsaturated fatty acids via overexpressed 3-desaturase significantly mitigated Helicobacter pylori (H. pylori)-associated gastric tumorigenesis through rejuvenation of chronic atrophic gastritis (CAG) led us to study whether dietary intake of walnut plentiful of n-3 PUFAs can be nutritional intervention to prevent H. pylori-associated gastric cancer. In our model that H. pylori-initiated, high salt diet-promoted gastric carcinogenesis, pellet diet containing 100 mg/kg and 200 mg/kg walnut was administered up to 36 weeks. As results, control mice (24 weeks) developed significant chronic CAG, in which dietary walnuts significantly ameliorated chronic atrophic gastritis. Expressions of COX-2/PGE2/NF-κB/c-Jun, elevated in 24 weeks control group, were all significantly decreased with walnut (p<0.01). Tumor suppressive enzyme, 15-PGDH, was significantly preserved with walnut. Control mice (36 weeks) all developed significant tumors accompanied with severe CAG. However, significantly decreased tumorigenesis was noted in group treated with walnuts, in which expressions of COX-2/PGE2/NF-κB/IL-6/STAT3, all elevated in 36 weeks control group, were significantly decreased with walnut. Defensive proteins including HO-1, Nrf2, and SOCS-1 were significantly increased in walnut group. Proliferative index as marked with Ki-67 and PCNA was significantly regulated with walnut relevant to 15-PGDH preservation. Conclusively, walnut can be an anticipating nutritional intervention against H. pylori.
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Affiliation(s)
- Jong Min Park
- Daejeon University School of Oriental Medicine, Daehak-ro 62, Dong-gu, Daejeon 34520, Korea
| | - Young Min Han
- Western Seoul Center, Korea Basic Science Institute, University-Industry Cooperate Building, 150 Bugahyeon-ro, Seodaemun-gu, Seoul 03759, Korea
| | - Yong Jin Park
- GI Medics, Kwanglim Bldg 5F, Daelim-dong, Yeongdeungpo-gu, Seoul 08513, Korea
| | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University, 330 Pangyo-dong, Bundang-gu, Seongnam13497, Korea.,Medpactor Research Institute, Medpacto, Myungdal-ro 92, Seocho-gu, Seoul 06668, Korea
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20
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Park JM, An JM, Han YM, Surh YJ, Hwang SJ, Kim SJ, Hahm KB. Walnut polyphenol extracts inhibit Helicobacter pylori-induced STAT3 Tyr705 phosphorylation through activation of PPAR-γ and SOCS1 induction. J Clin Biochem Nutr 2020; 67:248-256. [PMID: 33293765 PMCID: PMC7705089 DOI: 10.3164/jcbn.20-89] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/13/2020] [Indexed: 12/14/2022] Open
Abstract
The health beneficial effects of walnut plentiful of n-3 polyunsaturated fatty acid had been attributed to its anti-inflammatory and anti-oxidative properties against various clinical diseases. Since we have published Fat-1 transgenic mice overexpressing 3-desaturase significantly mitigated Helicobacter pylori (H. pylori)-associated gastric pathologies including rejuvenation of chronic atrophic gastritis and prevention of gastric cancer, in this study, we have explored the underlying molecular mechanisms of walnut against H. pylori infection. Fresh walnut polyphenol extracts (WPE) were found to suppress the phosphorylation and nuclear translocation of signal transducer and activator of transcription 3 (STAT3) induced by H. pylori infection in RGM-1 gastric mucosal cells. Notably, H. pylori infection significantly decreased suppressor of cytokine signaling 1 (SOCS1), but WPE induced expression of SOCS1, by which the suppressive effect of walnut extracts on STAT3Tyr705 phosphorylation was not seen in SOCS1 KO cells. WPE induced significantly increased nuclear translocation nuclear translocation of PPAR-γ in RGM1 cells, by which PPAR-γ KO inhibited transcription of SOCS1 and suppressive effect of WPE on p-STAT3Tyr705 was not seen. WPE inhibited the expression of c-Myc and IL-6/IL-6R signaling, which was attenuated in the RGM1 cells harboring SOCS1 specific siRNA. Conclusively, WPE inhibits H. pylori-induced STAT3 phosphorylation in a PPAR-γ and SOCS1-dependent manner.
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Affiliation(s)
- Jong Min Park
- College of Oriental Medicine, Daejeon University, Daehak-ro 62, Dong-gu, Daejeon, 34520, Korea
| | - Jeong Min An
- CHA Cancer Preventive Research Center, CHA Bio Complex, 330 Pangyo-dong, Bundang-gu, Seongnam, 13497, Korea
| | - Young Min Han
- Western Seoul Center, Korea Basic Science Institute, University-Industry Cooperate Building, 150 Bugahyeon-ro, Seodaemun-gu, Seoul, 03759, Korea
| | - Young Joon Surh
- College of Pharmacy Seoul National University, Seoul, 08826, Korea
| | - Sun Jin Hwang
- Medpacto Research Institute, Medpacto Inc., 92, Myeongdal-ro, Seocho-gu, Seoul, 06668, Korea
| | - Seong Jin Kim
- Medpacto Research Institute, Medpacto Inc., 92, Myeongdal-ro, Seocho-gu, Seoul, 06668, Korea
| | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, 330 Pangyo-dong, Bundang-gu, Seongnam, 13497, Korea.,Medpacto Research Institute, Medpacto Inc., 92, Myeongdal-ro, Seocho-gu, Seoul, 06668, Korea
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21
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Gastric cancer: genome damaged by bugs. Oncogene 2020; 39:3427-3442. [PMID: 32123313 PMCID: PMC7176583 DOI: 10.1038/s41388-020-1241-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/18/2020] [Accepted: 02/20/2020] [Indexed: 12/20/2022]
Abstract
Gastric cancer (GC) is one of the leading causes of cancer-related death worldwide. The role of the microorganisms in gastric tumorigenesis attracts much attention in recent years. These microorganisms include bacteria, virus, and fungi. Among them, Helicobacter pylori (H. pylori) infection is by far the most important risk factor for GC development, with special reference to the early-onset cases. H. pylori targets multiple cellular components by utilizing various virulence factors to modulate the host proliferation, apoptosis, migration, and inflammatory response. Epstein–Barr virus (EBV) serves as another major risk factor in gastric carcinogenesis. The virus protein, EBER noncoding RNA, and EBV miRNAs contribute to the tumorigenesis by modulating host genome methylation and gene expression. In this review, we summarized the related reports about the colonized microorganism in the stomach and discussed their specific roles in gastric tumorigenesis. Meanwhile, we highlighted the therapeutic significance of eradicating the microorganisms in GC treatment.
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22
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Alarcón-Millán J, Martínez-Carrillo DN, Peralta-Zaragoza O, Fernández-Tilapa G. Regulation of GKN1 expression in gastric carcinogenesis: A problem to resolve (Review). Int J Oncol 2019; 55:555-569. [PMID: 31322194 DOI: 10.3892/ijo.2019.4843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/04/2019] [Indexed: 11/05/2022] Open
Abstract
Gastrokine 1 (GKN1) is a protein expressed on the surface mucosa cells of the gastric antrum and fundus, which contributes to maintaining gastric homeostasis, inhibits inflammation and is a tumor suppressor. The expression of GKN1 decreases in mucosa that are either inflamed or infected by Helicobacter pylori, and is absent in gastric cancer. The measurement of circulating GKN1 concentration, the protein itself, or the mRNA in gastric tissue may be of use for the early diagnosis of cancer. The mechanisms that modulate the deregulation or silencing of GKN1 expression have not been completely described. The modification of histones, methylation of the GKN1 promoter, or proteasomal degradation of the protein have been detected in some patients; however, these mechanisms do not completely explain the absence of GKN1 or the reduction in GKN1 levels. Only NKX6.3 transcription factor has been shown to be a positive modulator of GKN1 transcription, although others also have an affinity with sequences in the promoter of this gene. While microRNAs (miRNAs) are able to directly or indirectly regulate the expression of genes at the post‑transcriptional level, the involvement of miRNAs in the regulation of GKN1 has not been reported. The present review analyzes the information reported on the determination of GKN1 expression and the regulation of its expression at the transcriptional, post‑transcriptional and post‑translational levels; it proposes an integrated model that incorporates the regulation of GKN1 expression via transcription factors and miRNAs in H. pylori infection.
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Affiliation(s)
- Judit Alarcón-Millán
- Clinical Research Laboratory, Faculty of Biological Chemical Sciences, Guerrero Autonomous University, Chilpancingo, Guerrero 39070, México
| | - Dinorah Nashely Martínez-Carrillo
- Clinical Research Laboratory, Faculty of Biological Chemical Sciences, Guerrero Autonomous University, Chilpancingo, Guerrero 39070, México
| | - Oscar Peralta-Zaragoza
- Direction of Chronic Infections and Cancer, Research Center in Infection Diseases, National Institute of Public Health, Cuernavaca, Morelos 62100, México
| | - Gloria Fernández-Tilapa
- Clinical Research Laboratory, Faculty of Biological Chemical Sciences, Guerrero Autonomous University, Chilpancingo, Guerrero 39070, México
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23
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Buzzelli JN, O'Connor L, Scurr M, Chung Nien Chin S, Catubig A, Ng GZ, Oshima M, Oshima H, Giraud AS, Sutton P, Judd LM, Menheniott TR. Overexpression of IL-11 promotes premalignant gastric epithelial hyperplasia in isolation from germline gp130-JAK-STAT driver mutations. Am J Physiol Gastrointest Liver Physiol 2019; 316:G251-G262. [PMID: 30520693 DOI: 10.1152/ajpgi.00304.2018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Expression of the cytokine IL-11 is elevated in human Helicobacter pylori infection and progressively increases with worsening gastric pathology. Additionally, IL-11 is required for tumor development in STAT3-dependent murine models of gastric cancer (GC) and, when administered acutely, causes resolving atrophic gastritis. However, it is unclear whether locally elevated IL-11 ligand expression can, in isolation from oncogenic gp130-JAK-STAT pathway mutations, initiate GC pathogenesis. Here we developed a transgenic mouse model of stomach-specific (keratin 19 promoter) IL-11 ligand overexpression. Keratin 19 promoter-IL-11 transgenic ( K19-IL11Tg) mice showed specific IL-11 overexpression in gastric corpus and antrum but not elsewhere in the gastrointestinal tract or in other tissues. K19-IL11Tg mice developed spontaneous premalignant disease of the gastric epithelium, progressing from atrophic gastritis to TFF2-positive metaplasia and severe epithelial hyperplasia, including adenoma-like lesions in a subset of older (1 yr old) animals. Although locally advanced, the hyperplastic lesions remained noninvasive. H. pylori infection in K19-IL11Tg mice accelerated some aspects of the premalignant phenotype. Finally, K19-IL11Tg mice had splenomegaly in association with elevated serum IL-11, with spleens showing an expanded myeloid compartment. Our results provide direct in vivo functional evidence that stomach-specific overexpression of IL-11, in isolation from germline gp130-JAK-STAT3 genetic drivers, is sufficient for premalignant progression. These findings have important functional implications for human GC, in which frequent IL-11 overexpression occurs in the reported absence of somatic mutations in gp130 signaling components. NEW & NOTEWORTHY We provide direct in vivo functional evidence that stomach-specific overexpression of the cytokine IL-11, in isolation from gp130-JAK-STAT3 pathway mutations, can trigger spontaneous atrophic gastritis progressing to locally advanced epithelial hyperplasia (but not dysplasia or carcinoma), which does not require, but may be accelerated by, concomitant Helicobacter pylori infection.
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Affiliation(s)
- Jon N Buzzelli
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Louise O'Connor
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Michelle Scurr
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Sharleen Chung Nien Chin
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Angelique Catubig
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Garrett Z Ng
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Masanobu Oshima
- Division of Translational and Clinical Oncology, Cancer Research Institute, Kanazawa University , Kanazawa , Japan
| | - Hiroko Oshima
- Division of Translational and Clinical Oncology, Cancer Research Institute, Kanazawa University , Kanazawa , Japan
| | - Andrew S Giraud
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia.,Department of Paediatrics, University of Melbourne, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Philip Sutton
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia.,Department of Paediatrics, University of Melbourne, The Royal Children's Hospital , Parkville, Victoria , Australia.,Faculty of Veterinary and Agricultural Science, University of Melbourne , Parkville, Victoria , Australia
| | - Louise M Judd
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia.,Department of Paediatrics, University of Melbourne, The Royal Children's Hospital , Parkville, Victoria , Australia
| | - Trevelyan R Menheniott
- Murdoch Children's Research Institute, The Royal Children's Hospital , Parkville, Victoria , Australia.,Department of Paediatrics, University of Melbourne, The Royal Children's Hospital , Parkville, Victoria , Australia
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24
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Molina-Castro S, Garita-Cambronero J, Malespín-Bendaña W, Une C, Ramírez V. Virulence factor genotyping of Helicobacter pylori isolated from Costa Rican dyspeptic patients. Microb Pathog 2019; 128:276-280. [PMID: 30654009 DOI: 10.1016/j.micpath.2019.01.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Costa Rica is one of the countries with the highest incidence and mortality rates for gastric cancer. Helicobacter pylori infection rates are high in the whole country. We have previously shown that H. pylori CagA+ is significantly associated with atrophic gastritis (AG) of the antrum in a dyspeptic population. The aim of this work is to determine if other H. pylori virulence factors (vacA, dupA, oipA, iceA and babA2) are associated with atrophic gastritis (AG) or duodenal ulcer (DU). METHODS The presence of virulence genes in Costa Rican H. pylori isolates was analyzed by PCR in 151 cultured strains from patients with dyspeptic symptoms. Endoscopic and histopathological diagnoses were available. Odds-ratio and 95% confidence intervals for AG patients vs. non-atrophic gastritis (NAG) or DU patients vs. no duodenal ulcer (NDU) patients were calculated. RESULTS Amongst the studied isolates, 82% had the cagA+, 76.2% had the vacA s1m1, 97.0% had the oipA+, 21.0% had the icea1, 79.0% had the iceA2, 44.0% had the babA2+ and 76.0% the dupA+ genotypes. Infection with H pylori cagA+, dupA+, oipA+, iceA, babA2+, and vacA s1m1 genotypes was not associated with AG risk. The frequency of the dupA gene was 78.7 and 60.9% in isolates from patients with NDU and DU, respectively, and its presence was significantly associated with decreased risk of duodenal ulcer [odds-ratio: 0.33, p = 0.024, confidence interval 95% (0.11-0.85)]. CONCLUSION H. pylori dupA genotype is inversely associated with DU risk in this population.
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Affiliation(s)
- Silvia Molina-Castro
- Institute for Health Research (INISA), University of Costa Rica, San Pedro, 11501, San José, Costa Rica; School of Medicine, University of Costa Rica, San Pedro, 11501, San José, Costa Rica.
| | - Jerson Garita-Cambronero
- Institute for Health Research (INISA), University of Costa Rica, San Pedro, 11501, San José, Costa Rica.
| | - Wendy Malespín-Bendaña
- Institute for Health Research (INISA), University of Costa Rica, San Pedro, 11501, San José, Costa Rica.
| | - Clas Une
- Institute for Health Research (INISA), University of Costa Rica, San Pedro, 11501, San José, Costa Rica.
| | - Vanessa Ramírez
- Institute for Health Research (INISA), University of Costa Rica, San Pedro, 11501, San José, Costa Rica.
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25
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Li S, Cong X, Gao H, Lan X, Li Z, Wang W, Song S, Wang Y, Li C, Zhang H, Zhao Y, Xue Y. Tumor-associated neutrophils induce EMT by IL-17a to promote migration and invasion in gastric cancer cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:6. [PMID: 30616627 PMCID: PMC6323742 DOI: 10.1186/s13046-018-1003-0] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 12/13/2018] [Indexed: 12/24/2022]
Abstract
PURPOSE Epithelial to mesenchymal transition (EMT) can contribute to gastric cancer (GC) progression and recurrence following therapy. Tumor-associated neutrophils (TANs) are associated with poor outcomes in a variety of cancers. However, it is not clear whether TANs interact with the EMT process during GC development. METHODS Immunohistochemistry was performed to examine the distribution and levels of CD66 + neutrophils in samples from 327 patients with GC. CD66b + TANs were isolated either directly from GC cell suspensions or were conditioned from healthy donor peripheral blood polymorphonuclear neutrophils (PMNs) stimulated with tumor tissue culture supernatants (TTCS) and placed into co-culture with MKN45 or MKN74 cells, after which migration, invasion and EMT were measured. Interleukin-17a (IL-17a) was blocked with a polyclonal antibody, and the STAT3 pathway was blocked with the specific inhibitor AG490. RESULTS Neutrophils were widely distributed in gastric tissues of patients with GC and were enriched predominantly at the invasion margin. Neutrophil levels at the invasion margin were an independent predictor of poor disease-free survival (DFS) and disease-specific survival (DSS). IL-17a + neutrophils constituted a large portion of IL-17a-producing cells in GC, and IL-17a was produced at the highest levels in co-culture compared with that in TANs not undergoing co-culture. TANs enhanced the migration, invasion and EMT of GC cells through the secretion of IL-17a, which activated the Janus kinase 2/signal transducers and activators of transcription (JAK2/STAT3) pathway in GC cells, while deprivation of IL-17a using a neutralizing antibody or inhibition of the JAK2/STAT3 pathway with AG490 markedly reversed these TAN-induced phenotypes in GC cells induced by TANs. CONCLUSIONS Neutrophils correlate with tumor stage and predict poor prognosis in GC. TANs produce IL-17a, which promotes EMT of GC cells through JAK2/STAT3 signalling. Blockade of IL-17a signalling with a neutralizing antibody inhibits TAN-stimulated activity in GC cells. Therefore, IL-17a-targeted therapy might be used to treat patients with GC.
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Affiliation(s)
- Sen Li
- Department of General Surgery, The Affiliated Cancer Hospital of Zhengzhou University, 127 Dong Ming Road, Zhengzhou, 450008, China.,Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Xiliang Cong
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Hongyu Gao
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Xiuwen Lan
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Zhiguo Li
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Wenpeng Wang
- Department of Gynecologic Oncology, Cancer Hospital Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shubin Song
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Yimin Wang
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Chunfeng Li
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Hongfeng Zhang
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China
| | - Yuzhou Zhao
- Department of General Surgery, The Affiliated Cancer Hospital of Zhengzhou University, 127 Dong Ming Road, Zhengzhou, 450008, China.
| | - Yingwei Xue
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, 150 Ha Ping Road, Harbin, 150081, China.
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26
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Chen ZM, Huang L, Li MM, Meng L, Ying SC, Xu AM. Inhibitory effects of isocryptotanshinone on gastric cancer. Sci Rep 2018; 8:9307. [PMID: 29915371 PMCID: PMC6006307 DOI: 10.1038/s41598-018-27638-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 06/07/2018] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) is one of the most common digestive malignancies globally, and the prognosis of patients with advanced tumors remains poor. Isocryptotanshinone (ICTS), isolated from Salvia miltiorrhiza, was found to inhibit the proliferation of lung and breast cancer cells. However, whether ICTS has anticancer activities against GC is unknown. In the present study, we reported that the proliferation of GC cells was inhibited by ICTS in a dose- and time-dependent manner. After treatment with ICTS, GC cells were arrested in the G1/G0 phase of cell cycle and the apoptotic cells were induced in a dose-dependent manner. Additionally, ICTS suppressed the expression of cell cycle- and apoptosis-associated proteins (e.g., Cyclin D1, phosphorylated Rb, E2F1, Mcl-1, Bcl-2, and Survivin). ICTS inhibited the phosphorylation of STAT3 in a dose-dependent manner. Down-regulated STAT3 attenuated the expression of Cyclin D1, p-Rb, and Survivin, which remarkably increased the sensitivity of ICTS in GC cells; overexpression of STAT3 restored the cell growth and proliferation and the protein expression suppressed by ICTS. ICTS also suppressed the xenograft tumor growth in BALB/c nude mice. Together, these data indicate that ICTS inhibits GC proliferation by inducing G1/G0 cell cycle arrest and apoptosis via inhibiting the STAT3 signaling pathway.
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Affiliation(s)
- Zhang-Ming Chen
- Department of Gastrointestinal Surgery, Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Lei Huang
- Department of Gastrointestinal Surgery, Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
| | - Miao-Miao Li
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Lei Meng
- Department of Gastrointestinal Surgery, Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Song-Cheng Ying
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China.
| | - A-Man Xu
- Department of Gastrointestinal Surgery, Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
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27
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Pandey A, Tripathi SC, Shukla S, Mahata S, Vishnoi K, Misra SP, Misra V, Mitra S, Dwivedi M, Bharti AC. Differentially localized survivin and STAT3 as markers of gastric cancer progression: Association with Helicobacter pylori. Cancer Rep (Hoboken) 2018; 1:e1004. [PMID: 32729225 DOI: 10.1002/cnr2.1004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/15/2018] [Accepted: 03/30/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Localization and differential expression of STAT3 and survivin in cancer cells are often related to distinct cellular functions. The involvement of survivin and STAT3 in gastric cancer has been reported in separate studies but without clear understanding of their kinetics in cancer progression. METHODS We examined intracellular distribution of STAT3 and survivin in gastric adenocarcinoma and compared it with normal and precancer tissues using immunoblotting and immunohistochemistry. RESULTS Analysis of a total of 156 gastric samples comprising 61 histologically normal, 30 precancerous tissues (comprising intestinal metaplasia and dysplasia), and 65 adenocarcinomas, collected as endoscopic biopsies from treatment naïve study participants, revealed a significant (P < .001) increase in overall protein levels. Survivin expression was detectable in both cytoplasmic (90.8%) and nuclear (87.7%) compartments in gastric adenocarcinomas lesions. Precancerous dysplastic gastric lesions exhibited a moderate survivin expression (56.7%) localized in cytoplasmic compartment. Similarly, STAT3 and pSTAT3 expression was detected at high level in gastric cancer lesions. The levels of compartmentalized expression of survivin and STAT3/pSTAT3 correlated in precancerous and adenocarcinoma lesions. Although overexpression of these proteins was found associated with the tobacco use and alcohol consumption, their expression invariably and strongly correlated with concurrent Helicobacter pylori infection. Receiver operating characteristic analysis of nuclear survivin, STAT3, and pSTAT3 in different study groups showed acceptable positive and negative predictive values with area under the curve above 0.8 (P < .001). CONCLUSION Overall, our results suggest that overall increase in survivin and STAT3 and their subcellular localization are key determinants of gastric cancer progression, which can be collectively used as potential disease biomarkers and therapeutic targets for gastric cancer.
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Affiliation(s)
- Arvind Pandey
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas, USA.,Division of Molecular Oncology, National Institute of Cancer Prevention and Research (ICMR), Noida, Uttar Pradesh, India
| | | | - Shirish Shukla
- Department of Pathology, University of Michigan Medical School, University of Michigan, Ann Arbor, Michigan, USA
| | - Sutapa Mahata
- Division of Molecular Oncology, National Institute of Cancer Prevention and Research (ICMR), Noida, Uttar Pradesh, India.,Division of Pathology and Cancer Screening, Chittaranjan National Cancer Institute, Kolkata, India
| | - Kanchan Vishnoi
- Division of Molecular Oncology, National Institute of Cancer Prevention and Research (ICMR), Noida, Uttar Pradesh, India.,Department of Surgery, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Sri Prakash Misra
- Department of Gastroenterology, Moti Lal Nehru Medical College, Allahabad, Uttar Pradesh, India
| | - Vatsala Misra
- Department of Pathology, Moti Lal Nehru Medical College, Allahabad, Uttar Pradesh, India
| | - Sankar Mitra
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas, USA
| | - Manisha Dwivedi
- Department of Gastroenterology, Moti Lal Nehru Medical College, Allahabad, Uttar Pradesh, India
| | - Alok C Bharti
- Division of Molecular Oncology, National Institute of Cancer Prevention and Research (ICMR), Noida, Uttar Pradesh, India.,Molecular Oncology Laboratory, Department of Zoology, University of Delhi, Delhi, India
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28
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Nie GQ, Wang XQ, Yang MY. E804, a derivative of indirubin, promotes autophagy of gastric cancer cells through Stat3 signaling pathway. Shijie Huaren Xiaohua Zazhi 2017; 25:3184-3190. [DOI: 10.11569/wcjd.v25.i36.3184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To explore the pharmacological mechanism of E804, a derivative of indirubin, by investigating whether it can inhibit the viability of gastric cancer cells, alter the expression of markers of autophagy, and promote the autophagy activity.
METHODS MGC-803 and MKN-45 cells were treated with different concentrations of E804. Non-treated MGC-803 and MKN-45 cells were used as negative controls, and those treated with interleukin-6 (100 ng/mL) for 2 h were used as a positive control. After treatment, cell viability was detected by MTT assay. The expression of autophagy markers was detected by Western blot. The diameter of transplantable tumor in a subcutaneous xenotransplanted tumor model was also measured.
RESULTS The viability of both MGC-803 and MKN-45 cells declined significantly after treatment (P < 0.05). E804 increased the expression of LC3-B and Beclin-1, two markers of autophagy, in a dose-dependent manner. When comparing the maximal diameters of tumor in the control group (non-treated) and experimental group (treated with E804), the speed of tumor growth in the experimental group was significantly lower than that of the control group (P < 0.05).
CONCLUSION E804 can promote autophagy of gastric cancer cells to suppress their growth, at least partly by inhibiting the activation of Stat3.
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Affiliation(s)
- Guo-Qing Nie
- Department of Oncology, People's Hospital of Qingzhou, Qingzhou 262500, Shandong Province, China
| | - Xin-Qiang Wang
- Department of Oncology, People's Hospital of Qingzhou, Qingzhou 262500, Shandong Province, China
| | - Ming-Ying Yang
- Department of Oncology, People's Hospital of Qingzhou, Qingzhou 262500, Shandong Province, China
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29
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Wu X, Tao P, Zhou Q, Li J, Yu Z, Wang X, Li J, Li C, Yan M, Zhu Z, Liu B, Su L. IL-6 secreted by cancer-associated fibroblasts promotes epithelial-mesenchymal transition and metastasis of gastric cancer via JAK2/STAT3 signaling pathway. Oncotarget 2017; 8:20741-20750. [PMID: 28186964 PMCID: PMC5400541 DOI: 10.18632/oncotarget.15119] [Citation(s) in RCA: 244] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 01/23/2017] [Indexed: 12/12/2022] Open
Abstract
Cancer-associated fibroblasts (CAFs), as the activated fibroblasts in tumor stroma, are important modifiers of tumor progression. However, the molecular mechanisms underlying the tumor-promoting properties of CAFs in gastric cancer remain unclear. Here, we show that CAFs isolated from gastric cancer produce significant amounts of interleukin-6 (IL-6). CAFs enhances the migration and EMT of gastric cancer cells through the secretion of IL-6 that activates Janus kinase 2/signal transducers and activators of transcription (JAK2/STAT3) pathway in gastric cancer cells, while deprivation of IL-6 using a neutralizing antibody or inhibition of JAK/STAT3 pathway with specific inhibitor AG490 markedly attenuates these phenotypes in gastric cancer cells induced by CAFs. Moreover, silencing IL-6 expression in CAFs or inhibiting JAK2/STAT3 pathway in gastric cancer cells impairs tumor peritoneal metastasis induced by CAFs in vivo. Taken together, these results suggest that CAFs in the tumor microenvironment promote the progression of gastric cancer through IL-6/JAK2/STAT3 signaling, and IL-6 targeted therapy could be a complementary approach against gastric cancer by exerting their action on stromal fibroblasts.
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Affiliation(s)
- Xiongyan Wu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Pan Tao
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Quan Zhou
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Jie Li
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Zhenjia Yu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Xiaofeng Wang
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Jiaanfang Li
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Chen Li
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Min Yan
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Zhenggang Zhu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Bingya Liu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
| | - Liping Su
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, People's Republic of China
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30
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Tegtmeyer N, Neddermann M, Asche CI, Backert S. Subversion of host kinases: a key network in cellular signaling hijacked byHelicobacter pyloriCagA. Mol Microbiol 2017; 105:358-372. [DOI: 10.1111/mmi.13707] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Nicole Tegtmeyer
- Department of Biology, Division of Microbiology; Friedrich Alexander University Erlangen-Nuremberg; Staudtstr. 5 Erlangen D-91058 Germany
| | - Matthias Neddermann
- Department of Biology, Division of Microbiology; Friedrich Alexander University Erlangen-Nuremberg; Staudtstr. 5 Erlangen D-91058 Germany
| | - Carmen Isabell Asche
- Department of Biology, Division of Microbiology; Friedrich Alexander University Erlangen-Nuremberg; Staudtstr. 5 Erlangen D-91058 Germany
| | - Steffen Backert
- Department of Biology, Division of Microbiology; Friedrich Alexander University Erlangen-Nuremberg; Staudtstr. 5 Erlangen D-91058 Germany
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31
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Zheng J, Zhao M, Li J, Lou G, Yuan Y, Bu S, Xi Y. Obesity-associated digestive cancers: A review of mechanisms and interventions. Tumour Biol 2017; 39:1010428317695020. [PMID: 28351315 DOI: 10.1177/1010428317695020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The prevalence of obesity has steadily increased over the past few decades. Previous studies suggest that obesity is an oncogenic factor and that over 20% of all cancers are obesity-related. Among such cancers, digestive system malignancies (including esophageal adenocarcinomas, colorectal cancers, and cancers of the gastric cardia, liver, and pancreas) are reported most frequently. While the 5-year survival rates of cancers of the breast and prostate are 90%, that rate is only 45% for digestive cancers. In this review, the mechanisms of obesity-associated digestive cancers are discussed, with an emphasis on obesity-related gene mutations, insulin and insulin-like growth factor signaling pathways, chronic inflammation, and altered adipokine levels. Evidence that these factors often function interdependently rather than independently in carcinogenesis is presented. Recommended interventions that may reduce the burden of obesity-associated digestive cancers, such as participation in physical activity, diet modulation, and calorie restriction, are also described.
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Affiliation(s)
- Jiachen Zheng
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Ming Zhao
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Jiahui Li
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Guoying Lou
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Yanyan Yuan
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Shizhong Bu
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Yang Xi
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
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32
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Backert S, Tegtmeyer N. Type IV Secretion and Signal Transduction of Helicobacter pylori CagA through Interactions with Host Cell Receptors. Toxins (Basel) 2017; 9:E115. [PMID: 28338646 PMCID: PMC5408189 DOI: 10.3390/toxins9040115] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/20/2017] [Accepted: 03/22/2017] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori is a highly successful human bacterium, which is exceptionally equipped to persistently inhabit the human stomach. Colonization by this pathogen is associated with gastric disorders ranging from chronic gastritis and peptic ulcers to cancer. Highly virulent H. pylori strains express the well-established adhesins BabA/B, SabA, AlpA/B, OipA, and HopQ, and a type IV secretion system (T4SS) encoded by the cag pathogenicity island (PAI). The adhesins ascertain intimate bacterial contact to gastric epithelial cells, while the T4SS represents an extracellular pilus-like structure for the translocation of the effector protein CagA. Numerous T4SS components including CagI, CagL, CagY, and CagA have been shown to target the integrin-β₁ receptor followed by translocation of CagA across the host cell membrane. The interaction of CagA with membrane-anchored phosphatidylserine and CagA-containing outer membrane vesicles may also play a role in the delivery process. Translocated CagA undergoes tyrosine phosphorylation in C-terminal EPIYA-repeat motifs by oncogenic Src and Abl kinases. CagA then interacts with an array of host signaling proteins followed by their activation or inactivation in phosphorylation-dependent and phosphorylation-independent fashions. We now count about 25 host cell binding partners of intracellular CagA, which represent the highest quantity of all currently known virulence-associated effector proteins in the microbial world. Here we review the research progress in characterizing interactions of CagA with multiple host cell receptors in the gastric epithelium, including integrin-β₁, EGFR, c-Met, CD44, E-cadherin, and gp130. The contribution of these interactions to H. pylori colonization, signal transduction, and gastric pathogenesis is discussed.
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Affiliation(s)
- Steffen Backert
- Division of Microbiology, Department of Biology, Friedrich Alexander University Erlangen-Nuremberg, Staudtstr. 5, D-91058 Erlangen, Germany.
| | - Nicole Tegtmeyer
- Division of Microbiology, Department of Biology, Friedrich Alexander University Erlangen-Nuremberg, Staudtstr. 5, D-91058 Erlangen, Germany.
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Gagnaire A, Nadel B, Raoult D, Neefjes J, Gorvel JP. Collateral damage: insights into bacterial mechanisms that predispose host cells to cancer. Nat Rev Microbiol 2017; 15:109-128. [DOI: 10.1038/nrmicro.2016.171] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Piao JY, Lee HG, Kim SJ, Kim DH, Han HJ, Ngo HKC, Park SA, Woo JH, Lee JS, Na HK, Cha YN, Surh YJ. Helicobacter pylori Activates IL-6-STAT3 Signaling in Human Gastric Cancer Cells: Potential Roles for Reactive Oxygen Species. Helicobacter 2016; 21:405-16. [PMID: 26910614 DOI: 10.1111/hel.12298] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Recent studies have shown that Helicobacter pylori (H. pylori) activates signal transducer and activator of transcription 3 (STAT3) that plays an important role in gastric carcinogenesis. However, the molecular mechanism underlying H. pylori-mediated STAT3 activation is still not fully understood. In this study, we investigated H. pylori-induced activation of STAT3 signaling in AGS human gastric cancer cells and the underlying mechanism. MATERIALS AND METHODS AGS cells were cocultured with H. pylori, and STAT3 activation was assessed by Western blot analysis, electrophoretic mobility shift assay and immunocytochemistry. To demonstrate the involvement of reactive oxygen species (ROS) in H. pylori-activated STAT3 signaling, the antioxidant N-acetylcysteine was utilized. The expression and production of interleukin-6 (IL-6) were measured by reverse-transcription polymerase chain reaction and enzyme-linked immunosorbent assay (ELISA), respectively. The interaction between IL-6 and IL-6 receptor (IL-6R) was determined by the immunoprecipitation assay. RESULTS H. pylori activates STAT3 as evidenced by increases in phosphorylation on Tyr(705) , nuclear localization, DNA binding and transcriptional activity of this transcription factor. The nuclear translocation of STAT3 was also observed in H. pylori-inoculated mouse stomach. In the subsequent study, we found that H. pylori-induced STAT3 phosphorylation was dependent on IL-6. Notably, the increased IL-6 expression and the IL-6 and IL-6R binding were mediated by ROS produced as a consequence of H. pylori infection. CONCLUSIONS H. pylori-induced STAT3 activation is mediated, at least in part, through ROS-induced upregulation of IL-6 expression. These findings provide a novel molecular mechanism responsible for H. pylori-induced gastritis and gastric carcinogenesis.
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Affiliation(s)
- Juan-Yu Piao
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Hee Geum Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Su-Jung Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea
| | - Do-Hee Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Hyeong-Jun Han
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Hoang-Kieu-Chi Ngo
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Sin-Aye Park
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Jeong-Hwa Woo
- Department of Food and Nutrition, Sungshin Women's University, Seoul, South Korea
| | - Jeong-Sang Lee
- Department of Health and Functional Food, College of Medicine and Science, Jeonju University, Jeonju, South Korea
| | - Hye-Kyung Na
- Department of Food and Nutrition, Sungshin Women's University, Seoul, South Korea
| | - Young-Nam Cha
- College of Medicine, Inha University, Incheon, South Korea
| | - Young-Joon Surh
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea. .,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea. .,Cancer Research Institute, Seoul National University, Seoul, South Korea.
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Epigenetic silencing of the NR4A3 tumor suppressor, by aberrant JAK/STAT signaling, predicts prognosis in gastric cancer. Sci Rep 2016; 6:31690. [PMID: 27528092 PMCID: PMC4985659 DOI: 10.1038/srep31690] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 07/25/2016] [Indexed: 12/29/2022] Open
Abstract
While aberrant JAK/STAT signaling is crucial to the development of gastric cancer (GC), its effects on epigenetic alterations of its transcriptional targets remains unclear. In this study, by expression microarrays coupled with bioinformatic analyses, we identified a putative STAT3 target gene, NR4A3 that was downregulated in MKN28 GC daughter cells overexpressing a constitutively activated STAT3 mutant (S16), as compared to an empty vector control (C9). Bisulphite pyrosequencing and demethylation treatment showed that NR4A3 was epigenetically silenced by promoter DNA methylation in S16 and other GC cell lines including AGS cells, showing constitutive activation of STAT3. Subsequent experiments revealed that NR4A3 promoter binding by STAT3 might repress its transcription. Long-term depletion of STAT3 derepressed NR4A3 expression, by promoter demethylation, in AGS GC cells. NR4A3 re-expression in GC cell lines sensitized the cells to cisplatin, and inhibited tumor growth in vitro and in vivo, in an animal model. Clinically, GC patients with high NR4A3 methylation, or lower NR4A3 protein expression, had significantly shorter overall survival. Intriguingly, STAT3 activation significantly associated only with NR4A3 methylation in low-stage patient samples. Taken together, aberrant JAK/STAT3 signaling epigenetically silences a potential tumor suppressor, NR4A3, in gastric cancer, plausibly representing a reliable biomarker for gastric cancer prognosis.
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Song B, Zhan H, Bian Q, Gu J. Piperlongumine inhibits gastric cancer cells via suppression of the JAK1,2/STAT3 signaling pathway. Mol Med Rep 2016; 13:4475-80. [PMID: 27053336 DOI: 10.3892/mmr.2016.5091] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 03/21/2016] [Indexed: 11/06/2022] Open
Abstract
Piperlongumine (PL), a major active component of long peppers, has been reported to possess anti‑cancer properties; however, its effect on gastric cancer (GC) has remained to be demonstrated. The present study assessed the effects of PL on the MKN45 and AGS GC cell lines and explored the underlying mechanisms. An MTT assay revealed that PL suppressed the proliferation of GC cells, while flow cytometric analysis showed that PL inhibited cell cycle progression. Furthermore, Transwell assays revealed the inhibitory effects of PL on the invasion and migration of GC cells. In addition, PL reduced the phosphorylation of Janus kinase (JAK)1, JAK2 and signal transducer and activator of transcription (STAT)3 in a concentration‑dependent manner, as indicated by western blot analysis, and decreased the expression of STAT3‑dependent tumor‑associated genes in GC cells, as revealed by PCR analysis. In conclusion, the present study was the first, to the best of our knowledge, to reveal the efficacy of PL against GC. The consumption of long peppers is therefore recommended for the prevention and treatment of GC, and PL may be a promising candidate drug for treating GC.
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Affiliation(s)
- Baoji Song
- Department of General Surgery, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Hongjie Zhan
- Department of Gastric Cancer, Tianjin Cancer Hospital, Key Laboratory of Cancer Prevention and Treatment of Tianjin, Tianjin Medical University, Tianjin 300060, P.R. China
| | - Quan Bian
- Department of General Surgery, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Junping Gu
- Department of General Surgery, Tianjin Hospital, Tianjin 300211, P.R. China
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Menheniott TR, O'Connor L, Chionh YT, Däbritz J, Scurr M, Rollo BN, Ng GZ, Jacobs S, Catubig A, Kurklu B, Mercer S, Minamoto T, Ong DE, Ferrero RL, Fox JG, Wang TC, Sutton P, Judd LM, Giraud AS. Loss of gastrokine-2 drives premalignant gastric inflammation and tumor progression. J Clin Invest 2016; 126:1383-400. [PMID: 26974160 DOI: 10.1172/jci82655] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 02/04/2016] [Indexed: 12/11/2022] Open
Abstract
Chronic mucosal inflammation is associated with a greater risk of gastric cancer (GC) and, therefore, requires tight control by suppressive counter mechanisms. Gastrokine-2 (GKN2) belongs to a family of secreted proteins expressed within normal gastric mucosal cells. GKN2 expression is frequently lost during GC progression, suggesting an inhibitory role; however, a causal link remains unsubstantiated. Here, we developed Gkn2 knockout and transgenic overexpressing mice to investigate the functional impact of GKN2 loss in GC pathogenesis. In mouse models of GC, decreased GKN2 expression correlated with gastric pathology that paralleled human GC progression. At baseline, Gkn2 knockout mice exhibited defective gastric epithelial differentiation but not malignant progression. Conversely, Gkn2 knockout in the IL-11/STAT3-dependent gp130F/F GC model caused tumorigenesis of the proximal stomach. Additionally, gastric immunopathology was accelerated in Helicobacter pylori-infected Gkn2 knockout mice and was associated with augmented T helper cell type 1 (Th1) but not Th17 immunity. Heightened Th1 responses in Gkn2 knockout mice were linked to deregulated mucosal innate immunity and impaired myeloid-derived suppressor cell activation. Finally, transgenic overexpression of human gastrokines (GKNs) attenuated gastric tumor growth in gp130F/F mice. Together, these results reveal an antiinflammatory role for GKN2, provide in vivo evidence that links GKN2 loss to GC pathogenesis, and suggest GKN restoration as a strategy to restrain GC progression.
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38
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Qu B, Han X, Ren G, Jia Y, Liu Y, Su J, Wang Z, Wang Y, Wang H, Pan J, Liu LL, Hu WJ. Influence of H. pylori CagA Coupled with Alcohol Consumption on Cytokine Profiles in Men. Medicine (Baltimore) 2016; 95:e2721. [PMID: 26844515 PMCID: PMC4748932 DOI: 10.1097/md.0000000000002721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to evaluate the effect of Helicobacter pylori (H pylori) cytotoxin-associated gene A (CagA) coupled with chronic alcohol ingestion on cytokine profiles.A total of 215 male subjects were divided into the following 4 groups: 130 alcohol H pylori CagA-negative consumers (CagA-) (group A), 50 alcohol H pylori CagA-positive consumers (CagA+) (group B), 24 nonalcohol H pylori CagA-negative consumers (group C), and 11 nonalcohol H pylori CagA-positive consumers (group D). The serum CagA, C-reactive protein (CRP), interleukin (IL)-6, IL-10, E-selectin, adiponectin (ADP), and tumor necrosis factor-α (TNF-α) levels were measured through enzyme-linked immunosorbent assays (ELISAs).After adjusting for age and mean alcohol drinking history, a multivariable linear regression analysis revealed that the mean daily alcohol consumption, IL-6, TNF-α, and ADP levels were significantly increased with increases in the serum CagA concentrations (P = 0.008, P = 0.000, P = 0.000, and P = 0.006, respectively). The serum IL-6 and IL-10 levels of group A were significantly lower than those of group B (all P = 0.000). Furthermore, the serum IL-6 and IL-10 levels of groups A and C were significantly lower than those of group D (all P = 0.000), and the serum IL-6 and IL-10 levels of group C were significantly lower than those of group B (all P = 0.000). The serum ADP and E-selectin levels of groups B and D were significantly higher than those of group A (P = 0.000). The serum ADP levels of group B were significantly higher than those of group C (P = 0.000), and the serum ADP and E-selectin levels of group C were significantly lower than those of group D (P = 0.000 and P = 0.005, respectively). Finally, the serum TNF-α levels of groups B, C, and D were significantly higher than those of group A (all P = 0.000), and the serum TNF-α levels of group C were significantly higher than those of group D (P = 0.005).In conclusion, H pylori CagA may result in significantly higher levels of several inflammatory markers in both alcohol consumers and nonalcohol consumers. However, chronic alcohol ingestion coupled with H pylori CagA positivity does not result in significant changes in cytokine profiles.
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Affiliation(s)
- Baoge Qu
- From the Department of Gastroenterology, Taishan Hospital, Taian, Shandong, PR China; and Taishan Medical College, Taian, Shandong, PR China
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Figura N, Marano L, Moretti E, Ponzetto A. Helicobacter pylori infection and gastric carcinoma: Not all the strains and patients are alike. World J Gastrointest Oncol 2016; 8:40-54. [PMID: 26798436 PMCID: PMC4714145 DOI: 10.4251/wjgo.v8.i1.40] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 10/06/2015] [Accepted: 11/03/2015] [Indexed: 02/05/2023] Open
Abstract
Gastric carcinoma (GC) develops in only 1%-3% of Helicobacter pylori (H. pylori) infected people. The role in GC formation of the bacterial genotypes, gene polymorphisms and host's factors may therefore be important. The risk of GC is enhanced when individuals are infected by strains expressing the oncoprotein CagA, in particular if CagA has a high number of repeats containing the EPIYA sequence in its C'-terminal variable region or particular amino acid sequences flank the EPIYA motifs. H. pylori infection triggers an inflammatory response characterised by an increased secretion of some chemokines by immunocytes and colonised gastric epithelial cells; these molecules are especially constituted by proteins composing the interleukin-1beta (IL-1β) group and tumour necrosis factor-alpha (TNF-α). Polymorphisms in the promoter regions of genes encoding these molecules, could account for high concentrations of IL-1β and TNF-α in the gastric mucosa, which may cause hypochlorhydria and eventually GC. Inconsistent results have been attained with other haplotypes of inflammatory and anti-inflammatory cytokines. Genomic mechanisms of GC development are mainly based on chromosomal or microsatellite instability (MSI) and deregulation of signalling transduction pathways. H. pylori infection may induce DNA instability and breaks of double-strand DNA in gastric mucocytes. Different H. pylori strains seem to differently increase the risk of cancer development run by the host. Certain H. pylori genotypes (such as the cagA positive) induce high degrees of chronic inflammation and determine an increase of mutagenesis rate, oxidative-stress, mismatch repair mechanisms, down-regulation of base excision and genetic instability, as well as generation of reactive oxygen species that modulate apoptosis; these phenomena may end to trigger or concur to GC development.
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40
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Coulombe G, Rivard N. New and Unexpected Biological Functions for the Src-Homology 2 Domain-Containing Phosphatase SHP-2 in the Gastrointestinal Tract. Cell Mol Gastroenterol Hepatol 2015; 2:11-21. [PMID: 28174704 PMCID: PMC4980741 DOI: 10.1016/j.jcmgh.2015.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 11/10/2015] [Indexed: 12/13/2022]
Abstract
SHP-2 is a tyrosine phosphatase expressed in most embryonic and adult tissues. SHP-2 regulates many cellular functions including growth, differentiation, migration, and survival. Genetic and biochemical evidence show that SHP-2 is required for rat sarcoma viral oncogene/extracellular signal-regulated kinases mitogen-activated protein kinase pathway activation by most tyrosine kinase receptors, as well as by G-protein-coupled and cytokine receptors. In addition, SHP-2 can regulate the Janus kinase/signal transducers and activators of transcription, nuclear factor-κB, phosphatidyl-inositol 3-kinase/Akt, RhoA, Hippo, and Wnt/β-catenin signaling pathways. Emerging evidence has shown that SHP-2 dysfunction represents a key factor in the pathogenesis of gastrointestinal diseases, in particular in chronic inflammation and cancer. Variations within the gene locus encoding SHP-2 have been associated with increased susceptibility to develop ulcerative colitis and gastric atrophy. Furthermore, mice with conditional deletion of SHP-2 in intestinal epithelial cells rapidly develop severe colitis. Similarly, hepatocyte-specific deletion of SHP-2 induces hepatic inflammation, resulting in regenerative hyperplasia and development of tumors in aged mice. However, the SHP-2 gene initially was suggested to be a proto-oncogene because activating mutations of this gene were found in pediatric leukemias and certain forms of liver and colon cancers. Moreover, SHP-2 expression is up-regulated in gastric and hepatocellular cancers. Notably, SHP-2 functions downstream of cytotoxin-associated antigen A (CagA), the major virulence factor of Helicobacter pylori, and is associated with increased risks of gastric cancer. Further compounding this complexity, most recent findings suggest that SHP-2 also coordinates carbohydrate, lipid, and bile acid synthesis in the liver and pancreas. This review aims to summarize current knowledge and recent data regarding the biological functions of SHP-2 in the gastrointestinal tract.
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Key Words
- CagA, cytotoxin-associated gene A
- ERK, extracellular signal-regulated kinases
- FGF, fibroblast growth factor
- GI, gastrointestinal
- HCC, hepatocellular carcinoma
- IBD, inflammatory bowel disease
- IEC, intestinal epithelial cell
- JMML, juvenile myelomonocytic leukemia
- KO, knockout
- MAPK, mitogen-activated protein kinase
- NF-κB, nuclear factor-κB
- PI3K, phosphatidyl-inositol 3-kinase
- PTP, protein tyrosine phosphatase
- PTPN11
- RAS, rat sarcoma viral oncogene
- epithelium
- gastrointestinal cancer
- inflammation
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Affiliation(s)
| | - Nathalie Rivard
- Correspondence Address correspondence to: Nathalie Rivard, PhD, 3201, Jean Mignault, Sherbrooke, Quebec, Canada, J1E4K8.3201Jean Mignault, SherbrookeQuebecCanada, J1E4K8
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41
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Menheniott TR, Judd LM, Giraud AS. STAT3: a critical component in the response to Helicobacter pylori infection. Cell Microbiol 2015; 17:1570-82. [PMID: 26332850 DOI: 10.1111/cmi.12518] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 08/16/2015] [Accepted: 08/28/2015] [Indexed: 12/15/2022]
Abstract
STAT3 imparts a profound influence on both the epithelial and immune components of the gastric mucosa, and through regulation of key intracellular signal transduction events, is well placed to control inflammatory and oncogenic outcomes in the context of Helicobacter (H.) pylori infection. Here we review the roles of STAT3 in the host immune response to H. pylori infection, from both gastric mucosal and systemic perspectives, as well as alluding more specifically to STAT3-dependent mechanisms that might be exploited as drug targets.
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Affiliation(s)
- Trevelyan R Menheniott
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Louise M Judd
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Andrew S Giraud
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
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Khanna P, Chua PJ, Bay BH, Baeg GH. The JAK/STAT signaling cascade in gastric carcinoma (Review). Int J Oncol 2015; 47:1617-26. [PMID: 26398764 DOI: 10.3892/ijo.2015.3160] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 08/03/2015] [Indexed: 11/06/2022] Open
Abstract
Gastric carcinoma remains one of the most prevalent forms of cancer worldwide, despite the decline in incidence rates, increased awareness of the disease and advancement in treatment strategies. Helicobacter pylori infection, dietary factors, lifestyle influences and various genetic aberrations have been shown to contribute to the development and progression of gastric cancer. Recent studies on the genomic landscape of gastric adenocarcinoma have identified several key signaling molecules, including epidermal growth factor receptor family (ErbB) members, vascular endothelial growth factor receptor family (VEGFR) members and PI3K/Akt/mTOR pathway components, that have been implicated in the molecular pathogenesis of gastric cancers. However, clinical trials with compounds that target these molecules have failed to show a significant improvement in overall survival rates when supplemented with conventional therapies. Therefore, it is essential to identify effective prognostic and/or diagnostic biomarkers and develop molecular targeted therapies. The JAK/STAT cascade is a principal signal transduction pathway in cytokine and growth factor signaling, regulating various cellular processes such as cell proliferation, differentiation, migration and survival. Numerous in vivo and in vitro studies have shown that dysregulated JAK/STAT signaling is a driving force in the pathogenesis of various solid cancers as well as hematopoietic malignancies. Hence, a large number of preclinical and clinical studies of drugs targeting this pathway are currently underway. Notably, aberrant JAK/STAT signaling has also been implicated in gastric cancers. In this review, we focus on the ongoing research on the JAK/STAT cascade in gastric carcinoma and discuss the therapeutic potential of targeting JAK/STAT signaling for the treatment of gastric cancer.
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Affiliation(s)
- Puja Khanna
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117 597, Republic of Singapore
| | - Pei Jou Chua
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117 597, Republic of Singapore
| | - Boon Huat Bay
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117 597, Republic of Singapore
| | - Gyeong Hun Baeg
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117 597, Republic of Singapore
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Yong X, Tang B, Li BS, Xie R, Hu CJ, Luo G, Qin Y, Dong H, Yang SM. Helicobacter pylori virulence factor CagA promotes tumorigenesis of gastric cancer via multiple signaling pathways. Cell Commun Signal 2015; 13:30. [PMID: 26160167 PMCID: PMC4702319 DOI: 10.1186/s12964-015-0111-0] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 07/03/2015] [Indexed: 12/12/2022] Open
Abstract
Helicobacter pylori (H. pylori) infection is strongly associated with the development of gastric diseases but also with several extragastric diseases. The clinical outcomes caused by H. pylori infection are considered to be associated with a complex combination of host susceptibility, environmental factors and bacterial isolates. Infections involving H. pylori strains that possess the virulence factor CagA have a worse clinical outcome than those involving CagA-negative strains. It is remarkable that CagA-positive H. pylori increase the risk for gastric cancer over the risk associated with H. pylori infection alone. CagA behaves as a bacterial oncoprotein playing a key role in H. pylori-induced gastric cancer. Activation of oncogenic signaling pathways and inactivation of tumor suppressor pathways are two crucial events in the development of gastric cancer. CagA shows the ability to affect the expression or function of vital protein in oncogenic or tumor suppressor signaling pathways via several molecular mechanisms, such as direct binding or interaction, phosphorylation of vital signaling proteins and methylation of tumor suppressor genes. As a result, CagA continuously dysregulates of these signaling pathways and promotes tumorigenesis. Recent research has enriched our understanding of how CagA effects on these signaling pathways. This review summarizes the results of the most relevant studies, discusses the complex molecular mechanism involved and attempts to delineate the entire signaling pathway.
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Affiliation(s)
- Xin Yong
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Bo Tang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Bo-Sheng Li
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Rui Xie
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Chang-Jiang Hu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Gang Luo
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Yong Qin
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Hui Dong
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
| | - Shi-Ming Yang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, P.R. China.
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Wang YC, Wang JL, Kong X, Sun TT, Chen HY, Hong J, Fang JY. CD24 mediates gastric carcinogenesis and promotes gastric cancer progression via STAT3 activation. Apoptosis 2015; 19:643-56. [PMID: 24327257 DOI: 10.1007/s10495-013-0949-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The development of gastric cancer (GC) is a complex multistep process, including numerous genetic and epigenetic changes. CD24 is associated with enhanced invasiveness of GC and a poor prognosis. However, the mechanism by which CD24 induces GC progression remains poorly characterized. Here, we found that the expression of CD24 gradually increased in samples of normal gastric mucosa, non-atrophic chronic gastritis, chronic atrophic gastritis (CAG), CAG with intestinal metaplasia, dysplasia and GC. Moreover, the knockdown of CD24 induced significant levels of apoptosis in GC cells via the mitochondrial apoptotic pathway. CD24 may also promote cellular invasion and regulate the expression of E-cadherin, fibronectin and vitamin D receptor in GC cells. The activation of signal transducer and activator of transcription 3 (STAT3) may mediate CD24-induced GC survival and invasion in vitro. Furthermore, CD24-induced GC progression and STAT3 activation could also be detected in vivo and in clinical GC tissues samples. Taken together, our results indicate that CD24 mediates gastric carcinogenesis and may promote GC progression by suppressing apoptosis and promoting invasion, with the activation of STAT3 playing a critical role.
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Affiliation(s)
- Ying-Chao Wang
- GI Division, Ren Ji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai Institution of Digestive Disease, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health (Shanghai Jiao-Tong University), State Key Laboratory of Oncogene and Related Genes, 145 Middle Shandong Rd., Shanghai, 200001, China
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Buzzelli JN, Chalinor HV, Pavlic DI, Sutton P, Menheniott TR, Giraud AS, Judd LM. IL33 Is a Stomach Alarmin That Initiates a Skewed Th2 Response to Injury and Infection. Cell Mol Gastroenterol Hepatol 2015; 1:203-221.e3. [PMID: 28210674 PMCID: PMC5301136 DOI: 10.1016/j.jcmgh.2014.12.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 12/13/2014] [Indexed: 12/21/2022]
Abstract
BACKGROUND & AIMS Interleukin (IL)33 is a recently described alarmin that is highly expressed in the gastric mucosa and potently activates Th2 immunity. It may play a pivotal role during Helicobacter pylori infection. Here, we delineate the role of IL33 in the normal gastric mucosa and in response to gastropathy. METHODS IL33 expression was evaluated in mice and human biopsy specimens infected with H pylori and in mice after dosing with aspirin. IL33 expression was localized in the gastric mucosa using immunofluorescence. Mice were given 1 or 7 daily doses of recombinant IL33 (1 μg/dose), and the stomach and the spleen responses were quantified morphologically, by flow cytometry and using quantitative reverse-transcription polymerase chain reaction and immunoblotting. RESULTS In mice, the IL33 protein was localized to the nucleus of a subpopulation of surface mucus cells, and co-localized with the surface mucus cell markers Ulex Europaeus 1 (UEA1), and Mucin 5AC (Muc5AC). A small proportion of IL33-positive epithelial cells also were Ki-67 positive. IL33 and its receptor Interleukin 1 receptor-like 1 (ST2) were increased 4-fold after acute (1-day) H pylori infection, however, this increase was not apparent after 7 days and IL33 expression was reduced 2-fold after 2 months. Similarly, human biopsy specimens positive for H pylori had a reduced IL33 expression. Chronic IL33 treatment in mice caused systemic activation of innate lymphoid cell 2 and polarization of macrophages to the M2 phenotype. In the stomach, IL33-treated mice developed transmural inflammation and mucous metaplasia that was mediated by Th2/signal transducer and activator of transcription 3 signaling. Rag-1-/- mice, lacking mature lymphocytes, were protected from IL33-induced gastric pathology. CONCLUSIONS IL33 is highly expressed in the gastric mucosa and promotes the activation of T helper 2-cytokine-expressing cells. The loss of IL33 expression after prolonged H pylori infection may be permissive for the T helper 1-biased immune response observed during H pylori infection and subsequent precancerous progression.
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Key Words
- AB, Alcian blue
- DC, dendritic cell
- ELISA, enzyme-linked immunosorbent assay
- ERK, extracellular signal–regulated kinase
- FBS, fetal bovine serum
- Gastric Cancer
- HBSS, Hank’s balanced salt solution
- Helicobacter pylori
- IL, interleukin
- IL33
- ILC, innate lymphoid cell
- Inflammatory Response
- NF-κB, nuclear factor-κB
- PAS, periodic acid–Schiff
- PCR, polymerase chain reaction
- QRT-PCR, quantitative reverse-transcription polymerase chain reaction
- SMC, surface mucus cells
- SPF, specific pathogen free
- SS1, Sydney strain 1
- STAT, signal transducer and activator of transcription
- TFF, trefoil factor
- Th, T-helper
- WT, wild type
- mRNA, messenger RNA
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Affiliation(s)
- Jon N. Buzzelli
- Murdoch Children's Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia,Department of Paediatrics, Royal Children’s Hospital, University of Melbourne, Parkville, Victoria, Australia
| | - Heather V. Chalinor
- Murdoch Children's Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Daniel I. Pavlic
- Murdoch Children's Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Philip Sutton
- Murdoch Children's Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia,Centre for Animal Biotechnology, School of Veterinary Science, University of Melbourne, Parkville, Victoria, Australia
| | - Trevelyan R. Menheniott
- Murdoch Children's Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Andrew S. Giraud
- Murdoch Children's Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia,Department of Paediatrics, Royal Children’s Hospital, University of Melbourne, Parkville, Victoria, Australia
| | - Louise M. Judd
- Murdoch Children's Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia,Department of Paediatrics, Royal Children’s Hospital, University of Melbourne, Parkville, Victoria, Australia,Correspondence Address correspondence to: Louise Judd, PhD, Royal Children’s Hospital–Murdoch Children’s Research Institute, Gastrointestinal Research in Inflammation and Pathology, Royal Children’s Hospital, Flemington Road, Parkville, Victoria, Australia 3052. fax: (61) 3-9936-6528.
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Piperine inhibits IL-1β-induced IL-6 expression by suppressing p38 MAPK and STAT3 activation in gastric cancer cells. Mol Cell Biochem 2014; 398:147-56. [DOI: 10.1007/s11010-014-2214-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 09/12/2014] [Indexed: 12/21/2022]
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Kurklu B, Whitehead RH, Ong EK, Minamoto T, Fox JG, Mann JR, Judd LM, Giraud AS, Menheniott TR. Lineage-specific RUNX3 hypomethylation marks the preneoplastic immune component of gastric cancer. Oncogene 2014; 34:2856-66. [PMID: 25088199 DOI: 10.1038/onc.2014.233] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 06/20/2014] [Indexed: 12/22/2022]
Abstract
Runt domain transcription factor 3 (RUNX3) is widely regarded as a tumour-suppressor gene inactivated by DNA hypermethylation of its canonical CpG (cytidine-phosphate-guanidine) island (CGI) promoter in gastric cancer (GC). Absence of RUNX3 expression from normal gastric epithelial cells (GECs), the progenitors to GC, coupled with frequent RUNX3 overexpression in GC progression, challenge this longstanding paradigm. However, epigenetic models to better describe RUNX3 deregulation in GC have not emerged. Here, we identify lineage-specific DNA methylation at an alternate, non-CGI promoter (P1) as a new mechanism of RUNX3 epigenetic control. In normal GECs, P1 was hypermethylated and repressed, whereas in immune lineages P1 was hypomethylated and widely expressed. In human GC development, we detected aberrant P1 hypomethylation signatures associated with the early inflammatory, preneoplastic and tumour stages. Aberrant P1 hypomethylation was fully recapitulated in mouse models of gastric inflammation and tumorigenesis. Cell sorting showed that P1 hypomethylation reflects altered cell-type composition of the gastric epithelium/tumour microenvironment caused by immune cell recruitment, not methylation loss. Finally, via long-term culture of gastric tumour epithelium, we revealed that de novo methylation of the RUNX3 canonical CGI promoter is a bystander effect of oncogenic immortalization and not likely causal in GC pathogenesis as previously argued. We propose a new model of RUNX3 epigenetic control in cancer, based on immune-specific, non-CGI promoter hypomethylation. This novel epigenetic signature may have utility in early detection of GC and possibly other epithelial cancers with premalignant immune involvement.
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Affiliation(s)
- B Kurklu
- 1] Infection and Immunity, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia [2] Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - R H Whitehead
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - E K Ong
- Infection and Immunity, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - T Minamoto
- Division of Translational and Clinical Oncology, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - J G Fox
- Division of Comparative Medicine, Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - J R Mann
- 1] Infection and Immunity, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia [2] Department of Zoology, University of Melbourne, Melbourne, Victoria, Australia
| | - L M Judd
- 1] Infection and Immunity, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia [2] Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - A S Giraud
- 1] Infection and Immunity, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia [2] Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - T R Menheniott
- 1] Infection and Immunity, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia [2] Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
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Ernst M, Putoczki TL. Molecular Pathways: IL11 as a Tumor-Promoting Cytokine—Translational Implications for Cancers. Clin Cancer Res 2014; 20:5579-88. [DOI: 10.1158/1078-0432.ccr-13-2492] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Helicobacter pylori-induced STAT3 activation and signalling network in gastric cancer. Oncoscience 2014; 1:468-475. [PMID: 25594045 PMCID: PMC4284628 DOI: 10.18632/oncoscience.62] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 07/02/2014] [Indexed: 12/12/2022] Open
Abstract
Background Helicobacter pylori (H. pylori) is the most important gastric carcinogen. However, the mechanisms of H. pylori induced gastric carcinogenesis through STAT3 activation are largely unknown. We evaluated the effects of H. pylori infection on STAT3 activation and dissected the signalling network of STAT3 in H. pylori- infected gastric carcinogenesis. Methods The expression of phospho-STAT3 (pSTAT3) was evaluated by immunohistochemistry and western blot. Gene expression array and chromatin immunoprecipitation were used to dissect the STAT3 signalling network on H. pylori co-cultured AGS. Results pSTAT3 was significantly higher in H. pylori -positive gastritis than in H. pylori -negative gastritis ( P = 0.003). In addition, 98% of H. pylori positive intestinal metaplasia specimens showed STAT3 activation, whereas pSTAT3 was significantly decreased in all 43 specimens one year after H. pylori eradication ( P < 0.001). Moreover, pSTAT3 was only detected in the H. pylori -infected gastric tissues of mice but not in control mice. We further identified 6 candidates ( BRUNOL4, FGFR1, SHOX2, JAK3, MAPK8, and PDPN ) were directly up-regulated by H. pylori induced STAT3 activation. Conclusion H. pylori infection triggers the activation of STAT3 and de-regulates multitude of tumorigenic genes which may contribute to the initiation and progression of gastric cancer.
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Katsha A, Arras J, Soutto M, Belkhiri A, El-Rifai W. AURKA regulates JAK2-STAT3 activity in human gastric and esophageal cancers. Mol Oncol 2014; 8:1419-28. [PMID: 24953013 DOI: 10.1016/j.molonc.2014.05.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 05/09/2014] [Accepted: 05/23/2014] [Indexed: 12/16/2022] Open
Abstract
Aurora kinase A is a frequently amplified and overexpressed gene in upper gastrointestinal adenocarcinomas (UGCs). Using in vitro cell models of UGCs, we investigated whether AURKA can regulate Signal Transducer and Activator of Transcription 3 (STAT3). Our data indicate that overexpression of AURKA in FLO-1 and AGS cells increase STAT3 phosphorylation at the Tyr705 site, whereas AURKA genetic depletion by siRNA results in decreased phosphorylation levels of STAT3 in FLO-1 and MKN45 cells. Immunofluorescence analysis showed that AURKA overexpression enhanced STAT3 nuclear translocation while AURKA genetic knockdown reduced the nuclear translocation of STAT3 in AGS and FLO-1 cells, respectively. Using a luciferase reporter assay, we demonstrated that AURKA expression induces transcriptional activity of STAT3. Pharmacological inhibition of AURKA by MLN8237 reduced STAT3 phosphorylation along with down-regulation of STAT3 pro-survival targets, BCL2 and MCL1. Moreover, by using clonogenic cells survival assay, we showed that MLN8237 single dose treatment reduced the ability of FLO-1 and AGS cells to form colonies. Additional experiments utilizing cell models of overexpression and knockdown of AURKA indicated that STAT3 upstream non-receptor tyrosine kinase Janus kinase 2 (JAK2) is mediating the effect of AURKA on STAT3. The inhibition of JAK2 using JAK2-specific inhibitor AZD1480 or siRNA knockdown, in presence of AURKA overexpression, abrogated the AURKA-mediated STAT3 activation. These results confirm that the AURKA-JAK2 axis is the main mechanism by which AURKA regulates STAT3 activity. In conclusion, we report, for the first time, that AURKA promotes STAT3 activity through regulating the expression and phosphorylation levels of JAK2. This highlights the importance of targeting AURKA as a therapeutic approach to treat gastric and esophageal cancers.
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Affiliation(s)
- Ahmed Katsha
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Janet Arras
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Mohammed Soutto
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Abbes Belkhiri
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Wael El-Rifai
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, United States.
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