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Arai J, Hayakawa Y, Tateno H, Fujiwara H, Kasuga M, Fujishiro M. The role of gastric mucins and mucin-related glycans in gastric cancers. Cancer Sci 2024. [PMID: 39031976 DOI: 10.1111/cas.16282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/22/2024] [Accepted: 07/02/2024] [Indexed: 07/22/2024] Open
Abstract
Gastric mucins serve as a protective barrier on the stomach's surface, protecting from external stimuli including gastric acid and gut microbiota. Their composition typically changes in response to the metaplastic sequence triggered by Helicobacter pylori infection. This alteration in gastric mucins is also observed in cases of gastric cancer, although the precise connection between mucin expressions and gastric carcinogenesis remains uncertain. This review first introduces the relationship between mucin expressions and gastric metaplasia or cancer observed in humans and mice. Additionally, we discuss potential pathogenic mechanisms of how aberrant mucins and their glycans affect gastric carcinogenesis. Finally, we summarize challenges to target tumor-specific glycans by utilizing lectin-drug conjugates that can bind to specific glycans. Understanding the correlation and mechanism between these mucin expressions and gastric carcinogenesis could pave the way for new strategies in gastric cancer treatment.
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Affiliation(s)
- Junya Arai
- Division of Gastroenterology, The Institute for Medical Science, Asahi Life Foundation, Chuo-ku, Tokyo, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yoku Hayakawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hiroaki Tateno
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Hiroaki Fujiwara
- Division of Gastroenterology, The Institute for Medical Science, Asahi Life Foundation, Chuo-ku, Tokyo, Japan
| | - Masato Kasuga
- The Institute for Medical Science, Asahi Life Foundation, Chuo-ku, Tokyo, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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2
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Pawaskar R, Huang KZ, Pham H, Nagrial A, Wong M, O’Neill S, Pleass H, Yuen L, Lam VWT, Richardson A, Pang T, Nahm CB. Systematic Review of Preoperative Prognostic Biomarkers in Perihilar Cholangiocarcinoma. Cancers (Basel) 2024; 16:698. [PMID: 38398089 PMCID: PMC10886549 DOI: 10.3390/cancers16040698] [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: 01/18/2024] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Perihilar cholangiocarcinoma (pCCA) is an uncommon malignancy with generally poor prognosis. Surgery is the primary curative treatment; however, the perioperative mortality and morbidity rates are high, with a low 5-year survival rate. Use of preoperative prognostic biomarkers to predict survival outcomes after surgery for pCCA are not well-established currently. This systematic review aimed to identify and summarise preoperative biomarkers associated with survival in pCCA, thereby potentially improving treatment decision-making. The Embase, Medline, and Cochrane databases were searched, and a systematic review was performed using the PRISMA guidelines. English-language studies examining the association between serum and/or tissue-derived biomarkers in pCCA and overall and/or disease-free survival were included. Our systematic review identified 64 biomarkers across 48 relevant studies. Raised serum CA19-9, bilirubin, CEA, neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and tumour MMP9, and low serum albumin were most associated with poorer survival; however, the cutoff values used widely varied. Several promising molecular markers with prognostic significance were also identified, including tumour HMGA2, MUC5AC/6, IDH1, PIWIL2, and DNA index. In conclusion, several biomarkers have been identified in serum and tumour specimens that prognosticate overall and disease-free survival after pCCA resection. These, however, require external validation in large cohort studies and/or in preoperatively obtained specimens, especially tissue biopsy, to recommend their use.
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Affiliation(s)
- Rishaan Pawaskar
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
| | | | - Helen Pham
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
- Westmead Hospital, Sydney, NSW 2145, Australia;
- Surgical Innovations Unit, Westmead Hospital, Sydney, NSW 2145, Australia
| | - Adnan Nagrial
- Westmead Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.N.); (M.W.)
- Crown Princess Mary Cancer Centre, Westmead Hospital, Sydney, NSW 2145, Australia;
| | - Mark Wong
- Westmead Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.N.); (M.W.)
- Crown Princess Mary Cancer Centre, Westmead Hospital, Sydney, NSW 2145, Australia;
| | - Siobhan O’Neill
- Crown Princess Mary Cancer Centre, Westmead Hospital, Sydney, NSW 2145, Australia;
| | - Henry Pleass
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
- Westmead Hospital, Sydney, NSW 2145, Australia;
- Surgical Innovations Unit, Westmead Hospital, Sydney, NSW 2145, Australia
- Westmead Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.N.); (M.W.)
| | - Lawrence Yuen
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
- Westmead Hospital, Sydney, NSW 2145, Australia;
- Surgical Innovations Unit, Westmead Hospital, Sydney, NSW 2145, Australia
- Westmead Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.N.); (M.W.)
| | - Vincent W. T. Lam
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
- Westmead Hospital, Sydney, NSW 2145, Australia;
- Surgical Innovations Unit, Westmead Hospital, Sydney, NSW 2145, Australia
- Westmead Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.N.); (M.W.)
- Macquarie University Medical School, Macquarie University, Sydney, NSW 2145, Australia
| | - Arthur Richardson
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
- Westmead Hospital, Sydney, NSW 2145, Australia;
- Surgical Innovations Unit, Westmead Hospital, Sydney, NSW 2145, Australia
| | - Tony Pang
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
- Westmead Hospital, Sydney, NSW 2145, Australia;
- Surgical Innovations Unit, Westmead Hospital, Sydney, NSW 2145, Australia
- Westmead Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.N.); (M.W.)
| | - Christopher B. Nahm
- Department of Upper GI Surgery, Westmead Hospital, Sydney, NSW 2145, Australia; (R.P.); (H.P.); (H.P.); (L.Y.); (V.W.T.L.); (A.R.); (T.P.)
- Westmead Hospital, Sydney, NSW 2145, Australia;
- Surgical Innovations Unit, Westmead Hospital, Sydney, NSW 2145, Australia
- Westmead Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.N.); (M.W.)
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3
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Privitera G, Williams JJ, De Salvo C. The Importance of Th2 Immune Responses in Mediating the Progression of Gastritis-Associated Metaplasia to Gastric Cancer. Cancers (Basel) 2024; 16:522. [PMID: 38339273 PMCID: PMC10854712 DOI: 10.3390/cancers16030522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Gastric cancer is one of the leading causes of cancer deaths worldwide, with chronic gastritis representing the main predisposing factor initiating the cascade of events leading to metaplasia and eventually progressing to cancer. A widely accepted classification distinguishes between autoimmune and environmental atrophic gastritis, mediated, respectively, by T cells promoting the destruction of the oxyntic mucosa, and chronic H. pylori infection, which has also been identified as the major risk factor for gastric cancer. The original dogma posits Th1 immunity as a main causal factor for developing gastritis and metaplasia. Recently, however, it has become evident that Th2 immune responses play a major role in the events causing chronic inflammation leading to tumorigenesis, and in this context, many different cell types and cytokines are involved. In particular, the activity of cytokines, such as IL-33 and IL-13, and cell types, such as mast cells, M2 macrophages and eosinophils, are intertwined in the process, promoting chronic gastritis-dependent and more diffuse metaplasia. Herein, we provide an overview of the critical events driving the pathology of this disease, focusing on the most recent findings regarding the importance of Th2 immunity in gastritis and gastric metaplasia.
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Affiliation(s)
- Giuseppe Privitera
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA; (G.P.); (J.J.W.)
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, 20142 Milan, Italy
| | - Joseph J. Williams
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA; (G.P.); (J.J.W.)
| | - Carlo De Salvo
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA; (G.P.); (J.J.W.)
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4
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Repetto O, Vettori R, Steffan A, Cannizzaro R, De Re V. Circulating Proteins as Diagnostic Markers in Gastric Cancer. Int J Mol Sci 2023; 24:16931. [PMID: 38069253 PMCID: PMC10706891 DOI: 10.3390/ijms242316931] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
Gastric cancer (GC) is a highly malignant disease affecting humans worldwide and has a poor prognosis. Most GC cases are detected at advanced stages due to the cancer lacking early detectable symptoms. Therefore, there is great interest in improving early diagnosis by implementing targeted prevention strategies. Markers are necessary for early detection and to guide clinicians to the best personalized treatment. The current semi-invasive endoscopic methods to detect GC are invasive, costly, and time-consuming. Recent advances in proteomics technologies have enabled the screening of many samples and the detection of novel biomarkers and disease-related signature signaling networks. These biomarkers include circulating proteins from different fluids (e.g., plasma, serum, urine, and saliva) and extracellular vesicles. We review relevant published studies on circulating protein biomarkers in GC and detail their application as potential biomarkers for GC diagnosis. Identifying highly sensitive and highly specific diagnostic markers for GC may improve patient survival rates and contribute to advancing precision/personalized medicine.
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Affiliation(s)
- Ombretta Repetto
- Facility of Bio-Proteomics, Immunopathology and Cancer Biomarkers, Centro di Riferimento Oncologico di Aviano (CRO), National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Roberto Vettori
- Immunopathology and Cancer Biomarkers, Centro di Riferimento Oncologico di Aviano (CRO), National Cancer Institute, IRCCS, 33081 Aviano, Italy; (R.V.); (A.S.)
| | - Agostino Steffan
- Immunopathology and Cancer Biomarkers, Centro di Riferimento Oncologico di Aviano (CRO), National Cancer Institute, IRCCS, 33081 Aviano, Italy; (R.V.); (A.S.)
| | - Renato Cannizzaro
- Oncological Gastroenterology, Centro di Riferimento Oncologico di Aviano (CRO), National Cancer Institute, IRCCS, 33081 Aviano, Italy;
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Valli De Re
- Facility of Bio-Proteomics, Immunopathology and Cancer Biomarkers, Centro di Riferimento Oncologico di Aviano (CRO), National Cancer Institute, IRCCS, 33081 Aviano, Italy
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5
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Patel NM, Geropoulos G, Patel PH, Bhogal RH, Harrington KJ, Singanayagam A, Kumar S. The Role of Mucin Expression in the Diagnosis of Oesophago-Gastric Cancer: A Systematic Literature Review. Cancers (Basel) 2023; 15:5252. [PMID: 37958425 PMCID: PMC10650431 DOI: 10.3390/cancers15215252] [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: 09/11/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Survival in oesophago-gastric cancer (OGC) is poor due to early diagnostic challenges. Non-invasive risk stratification may identify susceptible patients with pre-malignant or benign disease. Following diagnostic confirmation with endoscopic biopsy, early OGC may be treated sooner. Mucins are transmembrane glycoproteins implicated in OGC with potential use as biomarkers of malignant transformation. This systematic review defines the role of mucins in OGC diagnosis. A literature search of MEDLINE, Web of Science, Embase and Cochrane databases was performed following PRISMA protocols for studies published January 1960-December 2022. Demographic data and data on mucin sampling and analysis methods were extracted. The review included 124 studies (n = 11,386 patients). Gastric adenocarcinoma (GAc) was the commonest OG malignancy (n = 101) followed by oesophageal adenocarcinoma (OAc, n = 24) and squamous cell carcinoma (OSqCc, n = 10). Mucins MUC1, MUC2, MUC5AC and MUC6 were the most frequently implicated. High MUC1 expression correlated with poorer prognosis and metastases in OSqCc. MUC2 expression decreases during progression from healthy mucosa to OAc, causing reduced protection from gastric acid. MUC5AC was upregulated, and MUC6 downregulated in GAc. Mucin expression varies in OGC; changes may be epigenetic or mutational. Profiling upper GI mucin expression in OGC, with pre-malignant, benign and healthy controls may identify potential early diagnostic biomarkers.
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Affiliation(s)
- Nikhil Manish Patel
- The Royal Marsden NHS Foundation Trust, London SW3 6JJ, UK
- The Upper Gastrointestinal Surgical Oncology Research Group, The Institute of Cancer Research, London SW7 3RP, UK
| | - Georgios Geropoulos
- The Upper Gastrointestinal Surgical Oncology Research Group, The Institute of Cancer Research, London SW7 3RP, UK
| | - Pranav Harshad Patel
- The Royal Marsden NHS Foundation Trust, London SW3 6JJ, UK
- The Upper Gastrointestinal Surgical Oncology Research Group, The Institute of Cancer Research, London SW7 3RP, UK
| | - Ricky Harminder Bhogal
- The Royal Marsden NHS Foundation Trust, London SW3 6JJ, UK
- The Upper Gastrointestinal Surgical Oncology Research Group, The Institute of Cancer Research, London SW7 3RP, UK
| | - Kevin Joseph Harrington
- The Royal Marsden NHS Foundation Trust, London SW3 6JJ, UK
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London SW7 3RP, UK
| | - Aran Singanayagam
- Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK
| | - Sacheen Kumar
- The Royal Marsden NHS Foundation Trust, London SW3 6JJ, UK
- The Upper Gastrointestinal Surgical Oncology Research Group, The Institute of Cancer Research, London SW7 3RP, UK
- Department of Upper Gastrointestinal Surgery, Digestive Disease & Surgery Institute, Cleveland Clinic London Hospital, London SW1X 7HY, UK
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6
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Jeong H, Park J, Kang JH, Sabaté del Río J, Kong S, Park T. Organoid-Based Human Stomach Micro-Physiological System to Recapitulate the Dynamic Mucosal Defense Mechanism. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300164. [PMID: 37525340 PMCID: PMC10520631 DOI: 10.1002/advs.202300164] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 07/11/2023] [Indexed: 08/02/2023]
Abstract
Several stomach diseases are attributed to the dysregulation of physiological function of gastric mucosal barrier by pathogens. Gastric organoids are a promising tool to develop treatment strategies for gastric infections. However, their functional features of in vivo gastric mucosal barrier and host-microbe interactions are limited due to the lack of physiological stimuli. Herein, a human stomach micro-physiological system (hsMPS) with physiologically relevant gastric mucosal defense system is described based on the combination of organoid and MPS technology. A fluid flow enhanced epithelial-mesenchymal interaction in the hsMPS enables functional maturation of gastric epithelial cells, which allows for the recreation of mesh-like mucus layer containing high level of mucus protective peptides and well-developed epithelial junctional complexes. Furthermore, gastroprotection mechanisms against Helicobacter pylori (H. pylori) are successfully demonstrated in this system. Therefore, hsMPS represents a new in vitro tool for research where gastric mucosal defense mechanism is pivotal for developing therapeutic strategies.
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Affiliation(s)
- Hye‐Jin Jeong
- Department of Biomedical EngineeringUlsan National Institute of Science and TechnologyUlsan44919Republic of Korea
| | - Ji‐Hyeon Park
- Department of SurgerySeoul National University HospitalSeoul National University College of MedicineSeoul03080Republic of Korea
- Department of SurgeryGachon University Gil Medical CenterIncheon21565Republic of Korea
| | - Joo H. Kang
- Department of Biomedical EngineeringUlsan National Institute of Science and TechnologyUlsan44919Republic of Korea
| | - Jonathan Sabaté del Río
- Center for Soft and Living MatterInstitute for Basic Science (IBS)Ulsan44919Republic of Korea
| | - Seong‐Ho Kong
- Department of SurgerySeoul National University HospitalSeoul National University College of MedicineSeoul03080Republic of Korea
| | - Tae‐Eun Park
- Department of Biomedical EngineeringUlsan National Institute of Science and TechnologyUlsan44919Republic of Korea
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7
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Han L, Li T, Wang Y, Lai W, Zhou H, Niu Z, Su J, Lv G, Zhang G, Gao J, Huang J, Lou Z. Weierning, a Chinese patent medicine, improves chronic atrophic gastritis with intestinal metaplasia. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116345. [PMID: 36906155 DOI: 10.1016/j.jep.2023.116345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Weierning tablet (WEN) is a traditional Chinese patent medicine widely used in clinical for chronic atrophic gastritis (CAG) therapy for years. However, the underlying mechanisms of WEN on anti-CAG are still unveiled. AIM OF THE STUDY The present study aimed to elucidate the characteristic function of WEN on anti-CAG and to illuminate its potential mechanism. METHODS The CAG model was established by gavage rats with a modeling solution (consisting of 2% sodium salicylate and 30% alcohol) with irregular diets and free access to 0.1% ammonia solution for two months on end. An enzyme-linked immunosorbent assay was used to measure the serum levels of gastrin, pepsinogen, and inflammatory cytokines. qRT-PCR was applied to measure mRNA expressions of IL-6, IL-18, IL-10, TNF-α, and γ-IFN in gastric tissue. Pathological changes and the ultrastructure of gastric mucosa were examined by hematoxylin and eosin staining and transmission electron microscopy, respectively. AB-PAS staining was applied to observe the intestinal metaplasia of gastric mucosa. Immunohistochemistry and Western blot were used to measure the expression levels of mitochondria apoptosis-related proteins and Hedgehog pathway-related proteins in gastric tissues. Expressions of Cdx2 and Muc2 protein were determined by immunofluorescent staining. RESULTS WEN could dose-dependently lower the serum level of IL-1β and the mRNA expressions of IL-6, IL-8, IL-10, TNF-α, and γ-IFN in gastric tissue. Also, WEN significantly alleviated the collagen deposition in gastric submucosa, regulated the expressions of Bax, Cleaved-caspase9, Bcl2, and Cytochrome c to reduce the apoptosis of gastric mucosa epithelial cells, and maintained the integrity of the gastric mucosal barrier. Moreover, WEN could reduce protein expressions of Cdx2, Muc2, Shh, Gli1, and Smo, and reverse intestinal metaplasia of gastric mucosa to block the progress of CAG. CONCLUSION This study demonstrated a positive effect of WEN on improving CAG and reverse intestinal metaplasia. These functions were related to the suppression of gastric mucosal cells' apoptosis and the inhibition of Hedgehog pathways' activation.
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Affiliation(s)
- Liping Han
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Ting Li
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Yingying Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Weizi Lai
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Hengpu Zhou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Zhuangwei Niu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Jie Su
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Guiyuan Lv
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Guangji Zhang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Jianli Gao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China.
| | - Jianbo Huang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China.
| | - Zhaohuan Lou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China.
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8
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Niikura R, Hayakawa Y, Nagata N, Miyoshi-Akiayama T, Miyabayashi K, Tsuboi M, Suzuki N, Hata M, Arai J, Kurokawa K, Abe S, Uekura C, Miyoshi K, Ihara S, Hirata Y, Yamada A, Fujiwara H, Ushiku T, Woods SL, Worthley DL, Hatakeyama M, Han YW, Wang TC, Kawai T, Fujishiro M. Non- Helicobacter pylori Gastric Microbiome Modulates Prooncogenic Responses and Is Associated With Gastric Cancer Risk. GASTRO HEP ADVANCES 2023; 2:684-700. [PMID: 39129877 PMCID: PMC11307406 DOI: 10.1016/j.gastha.2023.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/08/2023] [Indexed: 08/13/2024]
Abstract
Background and Aims Although Helicobacter pylori is the most important bacterial carcinogen in gastric cancer (GC), GC can emerge even after H. pylori eradication. Studies suggest that various constituents of the gastric microbiome may influence GC development, but the role of individual pathogens is unclear. Methods Human gastric mucosal samples were analyzed by 16SrRNA sequencing to investigate microbiome composition and its association with clinical parameters, including GC risk. Identified bacteria in the stomach were cocultured with gastric epithelial cells or inoculated into mice, and transcriptomic changes, DNA damage, and inflammation were analyzed. Bacterial reads in GC tissues were examined together with transcriptomic and genetic sequencing data in the cancer genome atlas dataset. Results Patients after Helicobacter pylori eradication formed 3 subgroups based on the microbial composition revealed by 16SrRNA sequencing. One dysbiotic group enriched with Fusobacterium and Neisseria species was associated with a significantly higher GC incidence. These species activated prooncogenic pathways in gastric epithelial cells and promoted inflammation in mouse stomachs. Sugar chains that constitute gastric mucin attenuate host-bacteria interactions. Metabolites from Fusobacterium species were genotoxic, and the presence of the bacteria was associated with an inflammatory signature and a higher tumor mutation burden. Conclusion Gastric microbiota in the dysbiotic stomach is associated with GC development after H. pylori eradication and plays a pathogenic role through direct host-bacteria interaction.
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Affiliation(s)
- Ryota Niikura
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
- Gastroenterological Endoscopy, Tokyo Medical University, Tokyo, Japan
| | - Yoku Hayakawa
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Naoyoshi Nagata
- Gastroenterological Endoscopy, Tokyo Medical University, Tokyo, Japan
| | - Tohru Miyoshi-Akiayama
- Pathogenic Microbe Laboratory, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Koji Miyabayashi
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Mayo Tsuboi
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Nobumi Suzuki
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Masahiro Hata
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Junya Arai
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Ken Kurokawa
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Sohei Abe
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Chie Uekura
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Kotaro Miyoshi
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Sozaburo Ihara
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Yoshihiro Hirata
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Atsuo Yamada
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroaki Fujiwara
- Department of Gastroenterology, The Institute for Medical Science, Asahi-life Foundation, Tokyo, Japan
| | - Tetsuo Ushiku
- Department of Pathology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
| | - Susan L. Woods
- Cancer Theme, SAHMRI, Adelaide, South Australia, Australia
- Medical Specialties, Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | | | - Masanori Hatakeyama
- Department of Microbiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yiping W. Han
- Division of Digestive and Liver Disease, Department of Medicine, Columbia University, New York, New York
- Department of Microbiology and Immunology, Vagelos College of Physicians & Surgeons, Columbia University, New York, New York
- Section of Oral, Diagnostic and Rehabilitation Sciences, College of Dental Medicine, Columbia University, New York, New York
| | - Timothy C. Wang
- Division of Digestive and Liver Disease, Department of Medicine, Columbia University, New York, New York
| | - Takashi Kawai
- Gastroenterological Endoscopy, Tokyo Medical University, Tokyo, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate school of medicine, The University of Tokyo, Tokyo, Japan
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Shimshoni E, Merry G, Milot Z, Oh C, Horvath V, Gould R, Caruso J, Chen-Tanyolac C, Gascard P, Sangwan V, Bérubé J, Bailey S, Hall S, Stachler M, Ferri L, Tlsty T, Ingber D. Epithelial-Stromal Interactions in Barrett's Esophagus Modeled in Human Organ Chips. GASTRO HEP ADVANCES 2023; 2:676-680. [PMID: 39129866 PMCID: PMC11308040 DOI: 10.1016/j.gastha.2023.03.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 03/06/2023] [Indexed: 08/13/2024]
Affiliation(s)
- E. Shimshoni
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - G.E. Merry
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - Z.D. Milot
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - C.Y. Oh
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - V. Horvath
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - R.A. Gould
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - J.A. Caruso
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - C. Chen-Tanyolac
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - P. Gascard
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - V. Sangwan
- McGill University Health Centre, Montreal, Quebec, Canada
| | - J. Bérubé
- McGill University Health Centre, Montreal, Quebec, Canada
| | - S.D. Bailey
- McGill University Health Centre, Montreal, Quebec, Canada
| | - S. Hall
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - M.D. Stachler
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - L. Ferri
- McGill University Health Centre, Montreal, Quebec, Canada
| | - T.D. Tlsty
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - D.E. Ingber
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
- Boston Children’s Hospital and Harvard Medical School, Boston, Massachusetts
- Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, Massachusetts
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10
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Marczynski M, Rickert CA, Fuhrmann T, Lieleg O. An improved, filtration-based process to purify functional mucins from mucosal tissues with high yields. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Lee JE, Choi YY, An JY, Kim KT, Shin SJ, Cheong JH. Clinicopathologic and genomic characteristics of mucinous gastric adenocarcinoma. Gastric Cancer 2022; 25:697-711. [PMID: 35534656 DOI: 10.1007/s10120-022-01295-9] [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: 12/07/2021] [Accepted: 03/18/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Mucinous gastric adenocarcinoma (MGC) is a rare but distinctive histologic subtype of gastric cancer (GC). The clinico-pathologic and genomic characteristics of MGC have not been well evaluated. METHODS We collected individual data from five cohorts targeting the microsatellite instability (MSI) of GC (n = 5089) to evaluate the clinico-pathologic characteristics of MGC. In addition, public genomic databases were used for genomic analysis. The characteristics of MGC were compared with those of non-mucinous GC (NMGC). RESULTS MGC (n = 158, 3.1%) showed distinctive characteristics in terms of age, sex, and TNM stage compared to NMGC (n = 4931). MGC was frequently associated with MSI-high (OR: 2.24, 95% confidence interval [CI] 1.44-3.40, p < 0.001), while mutually exclusive to the Epstein-Barr virus type. The prognosis of MGC was better than that of NMGC (adj.HR: 0.731, 95% CI 0.556-0.962, p = 0.025). There was no clear benefit from postoperative chemotherapy in MGC. TP53 was the main driver mutation in the MGC without recurrent variants. MGC was related to high expression of GPR120 and B3GNT6 and moderate regulation of epithelial-mesenchymal transition (EMT)-up signature with a high EMT-down signature, and those characteristics was related to favorable prognosis of GC (log-rank p = 0.044, p < 0.001, p < 0.001, respectively). MSI-H of MGC was associated with low cancer-associate fibroblasts but high CD274 (PD-L1) expression compared to microsatellite stable MGC, suggesting that immune checkpoint inhibitors may be useful for the MSI-H of MGC. CONCLUSION MGC could be a surrogate for performing MSI but not the EBV test in GC. Further, its genetic characteristics lead to a favorable prognosis for MGC.
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Affiliation(s)
- Jae Eun Lee
- Graduate School of Integrated Medicine, CHA Ilsan Medical Center, CHA University School of Medicine, Pocheon, Korea
| | - Yoon Young Choi
- Department of Surgery, CHA Ilsan Medical Center, CHA University School of Medicine, Pocheon, Korea.,Department of Surgery, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Ji Yeong An
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ki Tae Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Su-Jin Shin
- Department of Pathology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Ho Cheong
- Department of Surgery, Yonsei University Health System, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Korea.
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12
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Liatsos C, Papaefthymiou A, Kyriakos N, Galanopoulos M, Doulberis M, Giakoumis M, Petridou E, Mavrogiannis C, Rokkas T, Kountouras J. Helicobacter pylori, gastric microbiota and gastric cancer relationship: Unrolling the tangle. World J Gastrointest Oncol 2022; 14:959-972. [PMID: 35646287 PMCID: PMC9124990 DOI: 10.4251/wjgo.v14.i5.959] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/12/2021] [Accepted: 04/09/2022] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori infection (Hp-I) represents a typical microbial agent intervening in the complex mechanisms of gastric homeostasis by disturbing the balance between the host gastric microbiota and mucosa-related factors, leading to inflammatory changes, dysbiosis and eventually gastric cancer. The normal gastric microbiota shows diversity, with Proteobacteria [Helicobacter pylori (H. pylori) belongs to this family], Firmicutes, Actinobacteria, Bacteroides and Fusobacteria being the most abundant phyla. Most studies indicate that H. pylori has inhibitory effects on the colonization of other bacteria, harboring a lower diversity of them in the stomach. When comparing the healthy with the diseased stomach, there is a change in the composition of the gastric microbiome with increasing abundance of H. pylori (where present) in the gastritis stage, while as the gastric carcinogenesis cascade progresses to gastric cancer, the oral and intestinal-type pathogenic microbial strains predominate. Hp-I creates a premalignant environment of atrophy and intestinal metaplasia and the subsequent alteration in gastric microbiota seems to play a crucial role in gastric tumorigenesis itself. Successful H. pylori eradication is suggested to restore gastric microbiota, at least in primary stages. It is more than clear that Hp-I, gastric microbiota and gastric cancer constitute a challenging tangle and the strong interaction between them makes it difficult to unroll. Future studies are considered of crucial importance to test the complex interaction on the modulation of the gastric microbiota by H. pylori as well as on the relationships between the gastric microbiota and gastric carcinogenesis.
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Affiliation(s)
- Christos Liatsos
- Department of Gastroenterology, 401 General Military Hospital of Athens, Athens 11525, Greece
| | - Apostolis Papaefthymiou
- Department of Gastroenterology, 401 General Military Hospital of Athens, Athens 11525, Greece
- Gastroenterology, University Hospital of Larissa, Larissa 41336, Greece
| | - Nikolaos Kyriakos
- Department of Gastroenterology, 401 General Military Hospital of Athens, Athens 11525, Greece
| | - Michail Galanopoulos
- Department of Gastroenterology, 401 General Military Hospital of Athens, Athens 11525, Greece
| | - Michael Doulberis
- Division of Gastroenterology and Hepatology, Medical University Department, Kantonsspital Aarau, Aarau 1234, Switzerland
| | - Marios Giakoumis
- Department of Gastroenterology, 401 General Military Hospital of Athens, Athens 11525, Greece
| | - Evangelia Petridou
- Department of Microbiology, “Agia Sofia” Paediatric Hospital, Goudi, Athens 11527, Greece
| | - Christos Mavrogiannis
- Gastrointestinal and Liver Unit, Faculty of Nursing, Kifissia General and Oncology Hospital, Kaliftaki, N.Kifisia 14564, Greece
| | - Theodore Rokkas
- Gastroenterological Clinic, Henry Dunant Hospital, Athens 11525, Greece
| | - Jannis Kountouras
- Department of Internal Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki 41336, Macedonia, Greece
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13
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A new approach against Helicobacter pylori using plants and its constituents: A review study. Microb Pathog 2022; 168:105594. [DOI: 10.1016/j.micpath.2022.105594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 02/07/2023]
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14
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Yang H, Yang WJ, Hu B. Gastric epithelial histology and precancerous conditions. World J Gastrointest Oncol 2022; 14:396-412. [PMID: 35317321 PMCID: PMC8919001 DOI: 10.4251/wjgo.v14.i2.396] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/08/2021] [Accepted: 01/05/2022] [Indexed: 02/06/2023] Open
Abstract
The most common histological type of gastric cancer (GC) is gastric adenocarcinoma arising from the gastric epithelium. Less common variants include mesenchymal, lymphoproliferative and neuroendocrine neoplasms. The Lauren scheme classifies GC into intestinal type, diffuse type and mixed type. The WHO classification includes papillary, tubular, mucinous, poorly cohesive and mixed GC. Chronic atrophic gastritis (CAG) and intestinal metaplasia are recommended as common precancerous conditions. No definite precancerous condition of diffuse/poorly/undifferentiated type is recommended. Chronic superficial inflammation and hyperplasia of foveolar cells may be the focus. Presently, the management of early GC and precancerous conditions mainly relies on endoscopy including diagnosis, treatment and surveillance. Management of precancerous conditions promotes the early detection and treatment of early GC, and even prevent the occurrence of GC. In the review, precancerous conditions including CAG, metaplasia, foveolar hyperplasia and gastric hyperplastic polyps derived from the gastric epithelium have been concluded, based on the overview of gastric epithelial histological organization and its renewal.
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Affiliation(s)
- Hang Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Wen-Juan Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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15
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Hwang SJ, Yeo D, Song YS, Choi Y, Youn HJ, Lee HJ. An aqueous extract from Artemisia capillaris inhibits acute gastric injury through mucosal stabilization. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:1255-1262. [PMID: 34358346 DOI: 10.1002/jsfa.11463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 07/19/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Artemisia capillaris is among the most abundantly used traditional medicines, utilized in East Asia to treat diverse illnesses, including gastrointestinal tract diseases. We previously reported that an aqueous extract of A. capillaris (AEAC) inhibited gastric inflammation induced by HCl/ethanol via reactive oxygen species scavenging and NF-κB downregulation. To date, the pharmacological potential of AEAC for promoting mucosal integrity has not been studied. RESULTS Here, we report that a single treatment with AEAC increased mucus production, and repeated administration of AEAC abolished HCl/ethanol-induced mucosal injury in vivo. Single- and multiple-dose AEAC treatments measurably increased the expression of mucosal stabilizing factors in vivo, including mucin (MUC) 5 AC, MUC6, and trefoil factor (TFF) 1 and TFF2 (but not TFF3). AEAC also induced mucosal stabilizing factors in both SNU-601 cells and RGM cells through phosphorylation of extracellular signal-regulated kinases. CONCLUSION Taken together, our results suggest that AEAC protects against HCl/ethanol-induced gastritis by upregulating MUCs and TFFs and stabilizing the mucosal epithelium. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Su Jung Hwang
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Dahee Yeo
- College of Pharmacy, Inje University, Gimhae, South Korea
| | - Ye-Seul Song
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Youngbin Choi
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Hyun-Joo Youn
- College of Pharmacy, Inje University, Gimhae, South Korea
| | - Hyo-Jong Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
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16
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Wada Y, Kodama M, Mizukami K, Okimoto T, Fuchino T, Tsutsumi K, Fukuda M, Hirashita Y, Fukuda K, Okamoto K, Ogawa R, Kushima R, Murakami K. Differences in Regression Patterns of Complete and Incomplete Intestinal Metaplasia at Ten Years after Helicobacter pylori Eradication. Acta Histochem Cytochem 2021; 54:185-194. [PMID: 35023881 PMCID: PMC8727845 DOI: 10.1267/ahc.21-00069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/01/2021] [Indexed: 11/22/2022] Open
Abstract
This study was conducted to reveal the reversibility of subtype of intestinal metaplasia (IM) and Paneth cells after H. pylori eradication (HPE). Among 75 patients, we retrospectively examined the proportions of patients with complete type of IM (CIM), incomplete type of IM (IIM) and Paneth cells in their biopsy specimens obtained from the greater curvature of the antrum (A2) and the greater curvature of the middle corpus (B2) before and during a follow-up period of 10 years after HPE. Immunohistochemistry was used to determine IM type. Compared to before HPE, the proportion of patients with CIM did not decrease significantly during the 10-year follow-up after HPE both in A2 (32% vs. 21.3%, P = 0.13) and in B2 (6.7% vs. 2.7%, P = 0.60). IIM rates in A2 was significantly lower during this time (26.7% vs. 10.7%, P = 0.04), whereas no patients showed IIM in B2 before HPE. The proportion of patients with Paneth cells decreased significantly in A2 after 3, 8, and 9 years of HPE and in B2 after 4, 6 and 9 years of HPE (P < 0.05 for all). Thus, IIM and Paneth cells regressed during a period of 10 years after HPE.
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Affiliation(s)
- Yasuhiro Wada
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Masaaki Kodama
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
- Faculty of Welfare and Health Science, Oita University, Oita, Japan
| | - Kazuhiro Mizukami
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Tadayoshi Okimoto
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Takafumi Fuchino
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Koshiro Tsutsumi
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Masahide Fukuda
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Yuka Hirashita
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Kensuke Fukuda
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Kazuhisa Okamoto
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Ryoji Kushima
- Department of Pathology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Kazunari Murakami
- Department of Gastroenterology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
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17
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Saberi S, Esmaeili M, Tashakoripour M, Eshagh Hosseini M, Baharvand H, Mohammadi M. Infection with a hypervirulent strain of Helicobacter pylori primes gastric cells toward intestinal transdifferentiation. Microb Pathog 2021; 162:105353. [PMID: 34896202 DOI: 10.1016/j.micpath.2021.105353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/05/2021] [Accepted: 12/05/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Intestinal metaplasia, gastric-to-intestinal transdifferentiation, occurs as a result of the misexpression of certain regulatory factors, leading to genetic reprogramming. Here, we have evaluated the H. pylori-induced expression patterns of these candidate genes. METHODS The expression levels of 1) tissue-specific transcription factors (RUNX3, KLF5, SOX2, SALL4, CDX1 and CDX2), 2) stemness factors (TNFRSF19, LGR5, VIL1) and 3) tissue-specific mucins (MUC5AC, MUC2) were evaluated by quantitative real-time PCR in gastric primary cells (GPCs), in parallel with two gastric cancer (MKN45 and AGS) cell lines, up to 96h following H. pylori infection. RESULTS Following H. pylori infection of GPCs, RUNX3 declined at 24h post infection (-6.2 ± 0.3) and remained downregulated for up to 96h. Subsequently, overexpression of self-renewal and pluripotency transcription factors, KLF5 (3.6 ± 0.2), SOX2 (7.6 ± 0.5) and SALL4 (4.3 ± 0.2) occurred. The expression of TNFRSF19 and LGR5, demonstrated opposing trends, with an early rise of the former (4.5 ± 0.3) at 8h, and a simultaneous fall of the latter (-1.8 ± 0.5). This trend was reversed at 96h, with the decline in TNFRSF19 (-5.5 ± 0.2), and escalation of LGR5 (2.6 ± 0.2) and VIL1 (1.8 ± 0.3). Ultimately, CDX1 and CDX2 were upregulated by 1.9 and 4.7-fold, respectively. The above scenario was, variably observed in MKN45 and AGS cells. CONCLUSION Our data suggests an interdependent gene regulatory network, induced by H. pylori infection. This interaction begins with the downregulation of RUNX3, upregulation of self-renewal and pluripotency transcription factors, KLF5, SOX2 and SALL4, leading to the downregulation of TNFRSF19, upregulation of LGR5 and aberrant expression of intestine-specific transcription factors, potentially facilitating the process of gastric-to-intestinal transdifferentiation.
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Affiliation(s)
- Samaneh Saberi
- HPGC Research Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Esmaeili
- HPGC Research Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Tashakoripour
- Gastroenterology Department, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Eshagh Hosseini
- Gastroenterology Department, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Marjan Mohammadi
- HPGC Research Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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18
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Shi D, Xi XX. Regulation of MUC6 Methylation Correlates with Progression of Gastric Cancer. Yonsei Med J 2021; 62:1005-1015. [PMID: 34672134 PMCID: PMC8542475 DOI: 10.3349/ymj.2021.62.11.1005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 07/04/2021] [Accepted: 07/23/2021] [Indexed: 12/27/2022] Open
Abstract
PURPOSE This study aimed to investigate the mechanistic downregulation of mucin 6 (MUC6) and its influence on the progression of gastric cancer (GC). MATERIALS AND METHODS The expression of MUC6 was examined in 40 GC patients. The methylation status of the MUC6 promoter region was investigated using GC cell lines and GC tissue specimens by immunohistochemistry and/or quantitative polymerase chain reaction (qPCR). MUC6 was knocked down in the gastric epithelial cells (GES-1) cell and overexpressed in the SGC7901 cell. The effects of MUC6 knockdown and overexpression on cell migration and invasion were examined using Transwell assays. The effects of demethylation and methylation on MUC6 expression were examined by western blot, qPCR, or double luciferase reporter assays. RESULTS The expression of MUC6 in GC with lymph node metastasis and poor pathological stage was significantly lower than that in GC without lymph node metastasis and good pathological stage, respectively. While cell migration and invasion were significantly decreased after overexpression of MUC6, these abilities significantly increased after the knockdown of MUC6. The methylation levels of MUC6 in GC tissues and GC cell lines were significantly higher than those in para-cancerous tissues and normal GES. Promoter methylation could significantly reduce the binding of related transcription factors to the MUC6 promoter. The expression of MUC6 increased with the concentration and time of action of demethylation drugs. CONCLUSION Expression of MUC6 was regulated by promotor methylation. This methylation of the MUC6 promoter may lead to significant downregulation of MUC6 in GC and promote the progression of GC.
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Affiliation(s)
- Ding Shi
- Department of Gastroenterology, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Xiao-Xia Xi
- Department of Gastroenterology, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, China.
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19
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Yang R, Li J, Xu X, Xu K, Shi J. Preventive and therapeutic effects of Lactobacillus rhamnosus SHA113 and its culture supernatant on alcoholic gastric ulcers. Food Funct 2021; 12:7250-7259. [PMID: 34165119 DOI: 10.1039/d1fo00181g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Alcoholic gastric ulcers are currently a common upper gastrointestinal disease with a high recurrence rate, causing gastric perforation or even gastric cancer in severe cases. Lactobacillus rhamnosus was previously found to prevent alcoholic gastric ulcers, but its therapeutic effects were not illustrated. AIMS This study aims to illustrate the preventive and therapeutic effects of L. rhamnosus SHA113 cells and their culture supernatant on alcoholic gastric ulcers and explore the related mechanisms. METHODS An alcoholic gastric ulcer model was established by feeding mice with 75% ethanol once at a dosage of 10 ml per kg body weight. The L. rhamnosus SHA113 cells (SHA) and their culture supernatant (SHA-FS) were separately used to feed mice for 2 weeks before ethanol injury in preventive experiments and for 2 days after ethanol injury in therapeutic experiments. The mechanisms were analyzed in view of anti-oxidant and anti-inflammatory activities and intestinal barrier functions. RESULTS The preventive effects of SHA-FS were much better than those of SHA via similar mechanisms, such as promoting the secretion of mucus, improving the antioxidant capacity of the gastric mucosa, and inhibiting inflammation. In terms of the therapeutic effects, SHA-FS and SHA could accelerate the healing of damaged ulcers by improving the secretion of tight junction proteins and mucus proteins, increasing angiogenesis, and inhibiting the apoptosis of gastric epithelial cells. CONCLUSION L. rhamnosus SHA113 and its culture supernatant had preventive and therapeutic effects on alcoholic gastric ulcers via anti-oxidant and anti-inflammatory pathways and the promotion of healing of damaged ulcers by enhancing intestinal barrier functions, respectively.
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Affiliation(s)
- Rongrong Yang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi West Road, Xi'an, Shanxi Province 710072, China.
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20
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Domșa AMT, Lupușoru R, Gheban D, Buruiană-Simic A, Gheban BA, Lazăr C, Borzan CM. Helicobacter pylori Infection and the Patterns of Gastric Mucin Expression in Children. J Clin Med 2020; 9:jcm9124030. [PMID: 33322136 PMCID: PMC7764750 DOI: 10.3390/jcm9124030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 01/10/2023] Open
Abstract
Background: The updated model for the mechanism of gastric carcinogenesis demonstrates that Helicobacter pylori (H. pylori) is a risk factor in every step of the process. The expression of certain gastric mucins is altered by H. pylori infection in adult patients. The aim of our research was to assess the impact of H. pylori infection on the expression of secretory mucins in the pediatric antral mucosa. Methods: Slides were stained with monoclonal antibodies for MUC5AC, MUC6 and MUC2, digitalized and scored using both a semiquantitative and a quantitative approach. Results: The expression of MUC5AC was significantly lower in infected children. Also, MUC2 expression was more pronounced in infected children. MUC6 expression did not differentiate between infected and noninfected children. Additionally, the presence of chronic inflammation significantly altered the expression of MUC6 and MUC2. The expression of MUC6 was significantly higher in patients with gastric atrophy. Conclusion: The minor differences in mucin expression at distinct ages might stem from different H. pylori exposure periods. Further research is needed to determine the particular patterns of expression according to age and to evaluate the effects of the interaction between H. pylori and mucins in the progression of the gastric carcinogenesis cascade.
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Affiliation(s)
- Ana-Maria Teodora Domșa
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Raluca Lupușoru
- Department of Gastroenterology and Hepatology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Correspondence:
| | - Dan Gheban
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
- Department of Pathology, Emergency Clinical Hospital for Children, 400370 Cluj-Napoca, Romania
| | - Alexandra Buruiană-Simic
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Bogdan Alexandru Gheban
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Camelia Lazăr
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Cristina Maria Borzan
- Department of Public Health and Management, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
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21
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Zheng Z, Wang X, Li M, Li Y, Yang Z, Wang X, Pan X, Gong M, Zhang Y, Guo Y, Wang Y, Liu J, Cai Y, Chen Q, Okpeku M, Colli L, Cai D, Wang K, Huang S, Sonstegard TS, Esmailizadeh A, Zhang W, Zhang T, Xu Y, Xu N, Yang Y, Han J, Chen L, Lesur J, Daly KG, Bradley DG, Heller R, Zhang G, Wang W, Chen Y, Jiang Y. The origin of domestication genes in goats. SCIENCE ADVANCES 2020; 6:eaaz5216. [PMID: 32671210 PMCID: PMC7314551 DOI: 10.1126/sciadv.aaz5216] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 03/06/2020] [Indexed: 05/22/2023]
Abstract
Goat domestication was critical for agriculture and civilization, but its underlying genetic changes and selection regimes remain unclear. Here, we analyze the genomes of worldwide domestic goats, wild caprid species, and historical remains, providing evidence of an ancient introgression event from a West Caucasian tur-like species to the ancestor of domestic goats. One introgressed locus with a strong signature of selection harbors the MUC6 gene, which encodes a gastrointestinally secreted mucin. Experiments revealed that the nearly fixed introgressed haplotype confers enhanced immune resistance to gastrointestinal pathogens. Another locus with a strong signal of selection may be related to behavior. The selected alleles at these two loci emerged in domestic goats at least 7200 and 8100 years ago, respectively, and increased to high frequencies concurrent with the expansion of the ubiquitous modern mitochondrial haplogroup A. Tracking these archaeologically cryptic evolutionary transformations provides new insights into the mechanisms of animal domestication.
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Affiliation(s)
- Zhuqing Zheng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Xihong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Ming Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yunjia Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Zhirui Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Xiaolong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Xiangyu Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Mian Gong
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yu Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yingwei Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yu Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Jing Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yudong Cai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Qiuming Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Moses Okpeku
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
- Discipline of Genetics, School of Life Science, University of Kwazulu-Natal, Durban 4000, South Africa
| | - Licia Colli
- Dipartimento di Scienze Animali, della Nutrizione e degli Alimenti, Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del S. Cuore, via Emilia Parmense n. 84, 29122, Piacenza (PC), Italy
- BioDNA–Centro di Ricerca sulla Biodiversità e sul DNA Antico, Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del S. Cuore, via Emilia Parmense n. 84, 29122, Piacenza (PC), Italy
| | - Dawei Cai
- Research Center for Chinese Frontier Archaeology, Jilin University, Changchun 130012, China
| | - Kun Wang
- Center for Ecological and Environmental Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Shisheng Huang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | | | - Ali Esmailizadeh
- Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, PB 76169-133, Iran
| | - Wenguang Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Tingting Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yangbin Xu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Naiyi Xu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yi Yang
- Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianlin Han
- CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agriculture Sciences (CAAS), Beijing 100193, China
- International Livestock Research Institute (ILRI), Nairobi 00100, Kenya
| | - Lei Chen
- Center for Ecological and Environmental Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | | | - Kevin G. Daly
- Smurfit Institute of Genetics, Trinity College Dublin, Dublin 2, Ireland
| | - Daniel G. Bradley
- Smurfit Institute of Genetics, Trinity College Dublin, Dublin 2, Ireland
| | - Rasmus Heller
- Section for Computational and RNA Biology, Department of Biology, University of Copenhagen, Copenhagen N 2200, Denmark
| | - Guojie Zhang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
- China National GeneBank, BGI-Shenzhen, Shenzhen 518083, China
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, DK-2100 Copenhagen, Denmark
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China
| | - Wen Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
- Center for Ecological and Environmental Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China
| | - Yulin Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yu Jiang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
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Rajilic-Stojanovic M, Figueiredo C, Smet A, Hansen R, Kupcinskas J, Rokkas T, Andersen L, Machado JC, Ianiro G, Gasbarrini A, Leja M, Gisbert JP, Hold GL. Systematic review: gastric microbiota in health and disease. Aliment Pharmacol Ther 2020; 51:582-602. [PMID: 32056247 DOI: 10.1111/apt.15650] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/09/2020] [Accepted: 01/17/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Helicobacter pylori is the most infamous constituent of the gastric microbiota and its presence is the strongest risk factor for gastric cancer and other gastroduodenal diseases. Although historically the healthy stomach was considered a sterile organ, we now know it is colonised with a complex microbiota. However, its role in health and disease is not well understood. AIM To systematically explore the literature on the gastric microbiota in health and disease as well as the gut microbiota after bariatric surgery. METHODS A systematic search of online bibliographic databases MEDLINE/EMBASE was performed between 1966 and February 2019 with screening in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Randomised controlled trials, cohort studies and observational studies were included if they reported next-generation sequencing derived microbiota analysis on gastric aspirate/tissue or stool samples (bariatric surgical outcomes). RESULTS Sixty-five papers were eligible for inclusion. With the exception of H pylori-induced conditions, overarching gastric microbiota signatures of health or disease could not be determined. Gastric carcinogenesis induces a progressively altered microbiota with an enrichment of oral and intestinal taxa as well as significant changes in host gastric mucin expression. Proton pump inhibitors usage increases gastric microbiota richness. Bariatric surgery is associated with an increase in potentially pathogenic proteobacterial species in patient stool samples. CONCLUSION While H pylori remains the single most important risk factor for gastric disease, its capacity to shape the collective gastric microbiota remains to be fully elucidated. Further studies are needed to explore the intricate host/microbial and microbial/microbial interplay.
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23
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Can N, Oz Puyan F, Altaner S, Ozyilmaz F, Tokuc B, Pehlivanoglu Z, Kutlu KA. Mucins, trefoil factors and pancreatic duodenal homeobox 1 expression in spasmolytic polypeptide expressing metaplasia and intestinal metaplasia adjacent to gastric carcinomas. Arch Med Sci 2020; 16:1402-1410. [PMID: 33224340 PMCID: PMC7667445 DOI: 10.5114/aoms.2013.36923] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 10/12/2011] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Gastric cancers are the second cause of cancer related deaths all around the world but gastric carcinogenesis remains a mystery. Intestinal metaplasia (IM) and spasmolytic polypeptide expressing metaplasia (SPEM) are the two types of preneoplastic metaplasias. In this study, we aimed to investigate expression of Pancreatic duodenal homeobox 1 (PDX1), mucins (MUCs), trefoil factors (TFFs) in SPEM and IM surrounding gastric carcinomas. MATERIAL AND METHODS Tissue samples of tumor adjacent gastric mucosa including IM (n = 61) and SPEM (n = 36) from 70 gastrectomy specimens were used for immunohistochemical analysis of PDX1, mucins (MUC5AC, MUC6) and trefoil factors (TFF2, TFF3). RESULTS Nuclear expression of PDX1 was present in both SPEM (32/36) and IM (60/61) and there was no significant difference in expression of PDX1 between the two types of metaplasias. While TFF3 and MUC5AC were abundant in IM, SPEM showed 100% expression of TFF2 and MUC6 and also lower positivity with TFF3 and MUC5AC. PDX1 positivity was related to expression of MUC5AC (60/61, p < 0.001) and TFF3 (60/61, p < 0.001) in IM and also associated with expression of MUC5AC (14/32, p < 0.05), MUC6 (32/32, p < 0.001), TFF2 (32/32, p < 0.001) and TFF3 (9/32, p < 0.05) in SPEM. Coexpression of TFF3 and TFF2 was present in 10 of 36 (27.7%) samples of SPEM and also 29 of 61 (47.5%) samples of IM exhibited dual expression of trefoil peptides. CONCLUSIONS PDX1 may affect the development of SPEM and IM. Expression patterns of TFFs and MUCs may indicate that IM evolves from SPEM.
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Affiliation(s)
- Nuray Can
- Department of Pathology, Trakya University Medical Faculty, Edirne, Turkey
| | - Fulya Oz Puyan
- Department of Pathology, Trakya University Medical Faculty, Edirne, Turkey
| | - Semsi Altaner
- Department of Pathology, Trakya University Medical Faculty, Edirne, Turkey
| | - Filiz Ozyilmaz
- Department of Pathology, Trakya University Medical Faculty, Edirne, Turkey
| | - Burcu Tokuc
- Department of Public Health, Trakya University Medical Faculty, Edirne, Turkey
| | | | - Kemal Ali Kutlu
- Department of Pathology, Trakya University Medical Faculty, Edirne, Turkey
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24
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Muc5ac null mice are predisposed to spontaneous gastric antro-pyloric hyperplasia and adenomas coupled with attenuated H. pylori-induced corpus mucous metaplasia. J Transl Med 2019; 99:1887-1905. [PMID: 31399638 PMCID: PMC6927550 DOI: 10.1038/s41374-019-0293-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 12/15/2022] Open
Abstract
Gastric cancer (GC) is the third leading cause of cancer-related deaths worldwide and is strongly associated with chronic Helicobacter pylori (Hp) infection. The ability of Hp to closely adhere to the gastric surface protective mucous layer containing mucins (MUC in humans and Muc in animals), primarily Muc5ac, is integral in the stepwise pathogenesis from gastritis to cancer. To probe the role of Muc5ac in Hp-induced gastric pathology, Muc5ac-/- and Muc5ac+/+ (WT) mice were experimentally infected with Hp Sydney strain (SS1). At 16 weeks and 32 weeks post infection (wpi), groups of mice were euthanized and evaluated for the following: gastric histopathological parameters, immunohistochemical expression of mucins (Muc5ac, Muc1, Muc2), Trefoil factor family proteins (Tff1 and Tff2), Griffonia (Bandeiraea) simplicifolia lectin II (GSL II) (mucous metaplasia marker) and Clusterin (Spasmolytic Polypeptide Expressing Metaplasia (SPEM) marker), Hp colonization density by qPCR and gastric cytokine mRNA levels. Our results demonstrate that Muc5ac-/- mice developed spontaneous antro-pyloric proliferation, adenomas and in one case with neuroendocrine differentiation; these findings were independent of Hp infection along with strong expression levels of Tff1, Tff2 and Muc1. Hp-infected Muc5ac-/- mice had significantly lowered gastric corpus mucous metaplasia at 16 wpi and 32 wpi (P = 0.0057 and P = 0.0016, respectively), with a slight reduction in overall gastric corpus pathology. GSII-positive mucous neck cells were decreased in Hp-infected Muc5ac-/- mice compared to WT mice and clusterin positivity was noted within metaplastic glands in both genotypes following Hp infection. Additionally, Hp colonization densities were significantly higher in Muc5ac-/- mice compared to WT at 16 wpi in both sexes (P = 0.05) along with a significant reduction in gastric Tnfα (16 wpi-males and females, P = 0.017 and P = 0.036, respectively and 32 wpi-males only, P = 0.025) and Il-17a (16 wpi-males) (P = 0.025). Taken together, our findings suggest a protective role for MUC5AC/Muc5ac in maintaining gastric antral equilibrium and inhibiting Hp colonization and associated inflammatory pathology.
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25
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Negovan A, Iancu M, Fülöp E, Bănescu C. Helicobacter pylori and cytokine gene variants as predictors of premalignant gastric lesions. World J Gastroenterol 2019; 25:4105-4124. [PMID: 31435167 PMCID: PMC6700706 DOI: 10.3748/wjg.v25.i30.4105] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 07/12/2019] [Accepted: 07/19/2019] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer remains the third leading cause of mortality from cancer worldwide and carries a poor prognosis, due largely to late diagnosis. The importance of the interaction between Helicobacter pylori (H. pylori) infection, the main risk factor, and host-related genetic factors has been studied intensively in recent years. The genetic predisposition for non-hereditary gastric cancer is difficult to assess, as neither the real prevalence of premalignant gastric lesions in various populations nor the environmental risk factors for cancer progression are clearly defined. For non-cardiac intestinal-type cancer, identifying the factors that modulate the progression from inflammation toward cancer is crucial in order to develop preventive strategies. The role of cytokines and their gene variants has been questioned in regard to non-self-limiting H. pylori gastritis and its evolution to gastric atrophy and intestinal metaplasia; the literature now includes various and non-conclusive results on this topic. The influence of the majority of cytokine single nucleotide polymorphisms has been investigated for gastric cancer but not for preneoplastic gastric lesions. Among the investigated gene variants onlyIL10T-819C, IL-8-251, IL-18RAP917997, IL-22 rs1179251, IL1-B-511, IL1-B-3954, IL4R-398 and IL1RN were identified as predictors for premalignant gastric lesions risk. One of the most important limiting factors is the inhomogeneity of the studies (e.g., the lack of data on concomitant H. pylori infection, methods used to assess preneoplastic lesions, and source population). Testing the modifying effect of H. pylori infection upon the relationship between cytokine gene variants and premalignant gastric lesions, or even testing the interaction between H. pylori and cytokine gene variants in multivariable models adjusted for potential covariates, could increase generalizability of results.
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Affiliation(s)
- Anca Negovan
- Department of Clinical Science-Internal Medicine, University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, Mureș 540139, Romania
| | - Mihaela Iancu
- Department of Medical Informatics and Biostatistics, “Iuliu Hațieganu” University of Medicine and Pharmacy, Cluj-Napoca, Cluj 400349, Romania
| | - Emőke Fülöp
- Department of Morphological Sciences, Histology, University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, Mureș 540139, Romania
| | - Claudia Bănescu
- Genetics Laboratory, Center for Advanced Medical and Pharmaceutical Research, University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, Mureș 540139, Romania
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Balan P, Sik-Han K, Moughan PJ. Impact of oral immunoglobulins on animal health-A review. Anim Sci J 2019; 90:1099-1110. [PMID: 31270894 DOI: 10.1111/asj.13258] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 04/02/2019] [Accepted: 05/10/2019] [Indexed: 12/19/2022]
Abstract
Immunoglobulin (Ig) is the one of the main anti-infective components of blood, colostrum and breast milk. It is the unique glycoprotein that defends the body from harmful bacteria, viruses and other environmental pathogens by either binding to them or by forming an encapsulating barrier. The expansion of antimicrobial and immunomodulatory products from natural sources for dietary supplementation in both animals and humans is an ever growing and thriving area of research. Purified Ig from sheep serum (ovine serum Ig) is one such candidate product. Recent work has shown the various biological effects of oral Ig in different animal models including its effect on growth, immunity, intestinal growth and gut barrier function. The objective of this paper is to review the results of recent studies demonstrating the effects of oral Ig in both pathogenic and non-pathogenic animal models and to suggest a possible mechanism of its action. Overall, purified oral Ig improves growth of healthy (and challenged) rats and defends against enteric infection by immunomodulation, mucin protein and/or modification of commensal microbial composition. The findings contribute to knowledge of how orally administered ovine Ig can influence and enhance key indicators of gut function and overall growth performance in an animal model.
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Affiliation(s)
- Prabhu Balan
- Riddet Institute, Massey University, Palmerston North, New Zealand.,Alpha-Massey Natural Nutraceutical Research Centre, Massey University, Palmerston North, New Zealand
| | - Kyoung Sik-Han
- Department of Animal Resource, Sahmyook University, Nowon-gu, Seoul, Korea
| | - Paul J Moughan
- Riddet Institute, Massey University, Palmerston North, New Zealand.,Alpha-Massey Natural Nutraceutical Research Centre, Massey University, Palmerston North, New Zealand
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27
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Expression and Serum Levels of Mucin 5AC (MUC5AC) as a Biomarker for Cholangiocarcinoma: a Meta-analysis. J Gastrointest Cancer 2019; 50:54-61. [PMID: 29139058 DOI: 10.1007/s12029-017-0032-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIM The potential of biomarkers in detecting early cholangiocarcinoma (CCA) is facilitated by examining CCA-associated proteins from primary studies. One such protein is mucin 5AC (MUC5AC) but inconsistency of reported associations between its expression/serum levels and CCA prompts a meta-analysis to obtain more precise estimates. METHODS A literature search yielded 17 included articles where multiple data in some raised the number of studies to 22. We calculated pooled odds ratios (OR) and 95% confidence intervals from negative and positive readings of MUC5AC levels. Data were subgrouped by ethnicity, detection method, sample source, and cancer type. RESULTS Outcome in the overall analysis was non-significant but those in the subgroups were. Thus, significant associations (P < 0.001) indicating high MUC5AC levels were found in three subgroups: (i) Thai (OR 8.32) and (ii) serum (OR 4.52). Heterogeneity of these two outcomes (I2 = 90-93%) was erased with outlier treatment (I2 = 0%) which also modulated the pooled effects (OR 2.48-2.59). (iii) Immunoblot (OR 2.61) had low initial heterogeneity (I2 = 2%). Robustness and significant tests for interaction (Pinteraction = 0.01-0.02) improved MUC5AC associations with CCA in the Thai population. CONCLUSIONS Our pooled effect findings target the biomarker potential of MUC5AC to the Thai population.
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Rizzato C, Torres J, Kasamatsu E, Camorlinga-Ponce M, Bravo MM, Canzian F, Kato I. Potential Role of Biofilm Formation in the Development of Digestive Tract Cancer With Special Reference to Helicobacter pylori Infection. Front Microbiol 2019; 10:846. [PMID: 31110496 PMCID: PMC6501431 DOI: 10.3389/fmicb.2019.00846] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 04/02/2019] [Indexed: 12/16/2022] Open
Abstract
Bacteria are highly social organisms that communicate via signaling molecules and can assume a multicellular lifestyle to build biofilm communities. Until recently, complications from biofilm-associated infection have been primarily ascribed to increased bacterial resistance to antibiotics and host immune evasion, leading to persistent infection. In this theory and hypothesis article we present a relatively new argument that biofilm formation has potential etiological role in the development of digestive tract cancer. First, we summarize recent new findings suggesting the potential link between bacterial biofilm and various types of cancer to build the foundation of our hypothesis. To date, evidence has been particularly convincing for colorectal cancer and its precursor, i.e., polyps, pointing to several key individual bacterial species, such as Bacteroides fragilis, Fusobacterium nucleatum, and Streptococcus gallolyticus subsp. Gallolyticus. Then, we further extend this hypothesis to one of the most common bacterial infection in humans, Helicobacter pylori (Hp), which is considered a major cause of gastric cancer. Thus far, there has been no direct evidence linking in vivo Hp gastric biofilm formation to gastric carcinogenesis. Yet, we synthesize the information to support an argument that biofilm associated-Hp is potentially more carcinogenic, summarizing biological characteristics of biofilm-associated bacteria. We also discuss mechanistic pathways as to how Hp or other biofilm-associated bacteria control biofilm formation and highlight recent findings on Hp genes that influence biofilm formation, which may lead to strain variability in biofilm formation. This knowledge may open a possibility of developing targeted intervention. We conclude, however, that this field is still in its infancy. To test the hypothesis rigorously and to link it ultimately to gastric pathologies (e.g., premalignant lesions and cancer), studies are needed to learn more about Hp biofilms, such as compositions and biological properties of extracellular polymeric substance (EPS), presence of non-Hp microbiome and geographical distribution of biofilms in relation to gastric gland types and structures. Identification of specific Hp strains with enhanced biofilm formation would be helpful not only for screening patients at high risk for sequelae from Hp infection, but also for development of new antibiotics to avoid resistance, regardless of its association with gastric cancer.
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Affiliation(s)
- Cosmeri Rizzato
- Department of Translation Research and of New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Javier Torres
- Unidad de Investigación en Enfermedades Infecciosas, Unidades Médicas de Alta Especialidad Pediatría, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Elena Kasamatsu
- Instituto de Investigaciones en Ciencias de la Salud, National University of Asunción, Asunción, Paraguay
| | - Margarita Camorlinga-Ponce
- Unidad de Investigación en Enfermedades Infecciosas, Unidades Médicas de Alta Especialidad Pediatría, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Maria Mercedes Bravo
- Grupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología, Bogotá, Colombia
| | - Federico Canzian
- Genomic Epidemiology Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ikuko Kato
- Department of Oncology and Pathology, Wayne State University School of Medicine, Detroit, MI, United States
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Boccellato F, Woelffling S, Imai-Matsushima A, Sanchez G, Goosmann C, Schmid M, Berger H, Morey P, Denecke C, Ordemann J, Meyer TF. Polarised epithelial monolayers of the gastric mucosa reveal insights into mucosal homeostasis and defence against infection. Gut 2019; 68:400-413. [PMID: 29467166 PMCID: PMC6580761 DOI: 10.1136/gutjnl-2017-314540] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Helicobacter pylori causes life-long colonisation of the gastric mucosa, leading to chronic inflammation with increased risk of gastric cancer. Research on the pathogenesis of this infection would strongly benefit from an authentic human in vitro model. DESIGN Antrum-derived gastric glands from surgery specimens served to establish polarised epithelial monolayers via a transient air-liquid interface culture stage to study cross-talk with H. pylori and the adjacent stroma. RESULTS The resulting 'mucosoid cultures', so named because they recapitulate key characteristics of the gastric mucosa, represent normal stem cell-driven cultures that can be passaged for months. These highly polarised columnar epithelial layers encompass the various gastric antral cell types and secrete mucus at the apical surface. By default, they differentiate towards a foveolar, MUC5AC-producing phenotype, whereas Wnt signalling stimulates proliferation of MUC6-producing cells and preserves stemness-reminiscent of the gland base. Stromal cells from the lamina propria secrete Wnt inhibitors, antagonising stem-cell niche signalling and inducing differentiation. On infection with H. pylori, a strong inflammatory response is induced preferentially in the undifferentiated basal cell phenotype. Infection of cultures for several weeks produces foci of viable bacteria and a persistent inflammatory condition, while the secreted mucus establishes a barrier that only few bacteria manage to overcome. CONCLUSION Gastric mucosoid cultures faithfully reproduce the features of normal human gastric epithelium, enabling new approaches for investigating the interaction of H. pylori with the epithelial surface and the cross-talk with the basolateral stromal compartment. Our observations provide striking insights in the regulatory circuits of inflammation and defence.
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Affiliation(s)
- Francesco Boccellato
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Sarah Woelffling
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Aki Imai-Matsushima
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Gabriela Sanchez
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Christian Goosmann
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Monika Schmid
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Hilmar Berger
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Pau Morey
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Christian Denecke
- Center for Bariatric and Metabolic Surgery, Charité University Medicine, Berlin, Germany
| | - Juergen Ordemann
- Department of Bariatric and Metabolic Surgery, Helios Clinics, Berlin, Germany
| | - Thomas F Meyer
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
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30
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Zhang X, Shi D, Liu YP, Chen WJ, Wu D. Effects of the Helicobacter pylori Virulence Factor CagA and Ammonium Ion on Mucins in AGS Cells. Yonsei Med J 2018; 59:633-642. [PMID: 29869461 PMCID: PMC5990679 DOI: 10.3349/ymj.2018.59.5.633] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/17/2018] [Accepted: 04/25/2018] [Indexed: 12/22/2022] Open
Abstract
PURPOSE To investigate the effects of Helicobacter pylori (H. pylori)-CagA and the urease metabolite NH₄⁺ on mucin expression in AGS cells. MATERIALS AND METHODS AGS cells were transfected with CagA and/or treated with different concentrations of NH₄CL. Mucin gene and protein expression was assessed by qPCR and immunofluorescence assays, respectively. RESULTS CagA significantly upregulated MUC5AC, MUC2, and MUC5B expression in AGS cells, but did not affect E-cadherin and MUC6 expression. MUC5AC, MUC6, and MUC2 expression in AGS cells increased with increasing NH₄⁺ concentrations until reaching a peak level at 15 mM. MUC5B mRNA expression in AGS cells (NH₄⁺ concentration of 15 mM) was significantly higher than that at 0, 5, and 10 mM NH₄⁺. No changes in E-cadherin expression in AGS cells treated with NH₄⁺ were noted, except at 20 mM. The expression of MUC5AC, MUC2, and MUC6 mRNA in CagA-transfected AGS cells at an NH₄⁺ concentration of 15 mM was significantly higher than that at 0 mM, and decreased at higher concentrations. The expression of MUC5B mRNA increased with increases in NH₄⁺ concentration, and was significantly higher compared to that in untreated cells. No significant change in the expression of E-cadherin mRNA in CagA-transfected AGS cells was observed. Immunofluorescence assays confirmed the observed changes. CONCLUSION H. pylori may affect the expression of MUC5AC, MUC2, MUC5B, and MUC6 in AGS cells via CagA and/or NH₄⁺, but not E-cadherin.
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Affiliation(s)
- Xiaoyu Zhang
- Department of Gastroenterology, Henan University of Chinese Medicine, Zhengzhou, China
| | - Ding Shi
- Department of Gastroenterology, Ningbo No. 2 Hospital, Ningbo, China.
| | - Yong Pan Liu
- Department of Gastroenterology, the First People's Hospital of Yuhang District, Hangzhou, China
| | - Wu Jie Chen
- Department of Gastroenterology, Ningbo No. 2 Hospital, Ningbo, China
| | - Dong Wu
- Department of Gastroenterology, Ningbo No. 2 Hospital, Ningbo, China
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Abstract
Abstract
Background: Helicobacter pylori (H. pylori) may be associated with colorectal cancer. However, the underlying mechanisms are still unclear. Objectives: Explore the serostatus of H. pylori cytotoxicity-associated gene A product (CagA) in patients with colorectal carcinoma, and assess the association of H. pylori with colorectal cancer via c-Myc and MUC-2 proteins at tumor tissues. Methods: H. pylori CagA IgG antibodies were screened using enzyme-linked immunosorbent assay (ELISA) in 30 patients with colorectal carcinoma and 30 cancer-free control subjects. Paraffin-embedded blocks were examined for the expression of c-Myc and MUC-2 protein by immunohistochemistry. Results: H. pylori CagA seropositivity increased significantly among colorectal cancer patients (p <0.05). The expression of c-Myc and MUC-2 in colorectal carcinoma patients was over-expressed (80%), and downexpressed (63%) in resection margins (p <0.05). c-Myc over-expression and MUC-2 down-expression were associated with CagA-positive rather than CagA-negative H. pylori patients. In 16 CagA seropositive vs. 14 CagA seronegative patients, the expression rate was 97.3% vs. 64.2% and 33.3% vs. 78.5% for cMyc and MUC-2, respectively. CagA IgG level was significantly higher in positive than in negative c-Myc patients (p= 0.036), and in negative than in positive MUC-2 patients (p= 0.044). c-Myc and MUC-2 were positively and inversely correlated with CagA IgG level (p <0.05). Conclusions: CagA-seropositive H. pylori is most probably associated with colorectal cancer development. Part of the underlying mechanism for such association might be via alterations in expression of MUC-2, which depletes the mucous protective layer in the colo-rectum, and c-Myc, which stimulates the growth of cancerous cells.
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Marczynski M, Käsdorf BT, Altaner B, Wenzler A, Gerland U, Lieleg O. Transient binding promotes molecule penetration into mucin hydrogels by enhancing molecular partitioning. Biomater Sci 2018; 6:3373-3387. [DOI: 10.1039/c8bm00664d] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Charged, mucoadhesive molecules can penetrate mucin-based hydrogels such as native mucus with similar efficiency as inert, non-mucoadhesive molecules.
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Affiliation(s)
- Matthias Marczynski
- Department of Mechanical Engineering and Munich School of Bioengineering
- Technical University of Munich
- Garching
- Germany
| | - Benjamin T. Käsdorf
- Department of Mechanical Engineering and Munich School of Bioengineering
- Technical University of Munich
- Garching
- Germany
| | - Bernhard Altaner
- Physics Department
- Technical University of Munich
- 85748 Garching
- Germany
| | - Andreas Wenzler
- Department of Mechanical Engineering and Munich School of Bioengineering
- Technical University of Munich
- Garching
- Germany
| | - Ulrich Gerland
- Physics Department
- Technical University of Munich
- 85748 Garching
- Germany
| | - Oliver Lieleg
- Department of Mechanical Engineering and Munich School of Bioengineering
- Technical University of Munich
- Garching
- Germany
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Javanbakht M, Akhavanmoghadam J, Talaei AJ, Aghyani M, Mozafari M, Khedmat L, Mohebbi M. Differential expression of two genes Oct-4 and MUC5AC associates with poor outcome in patients with gastric cancer. Clin Exp Pharmacol Physiol 2017; 44:1099-1105. [PMID: 28762513 DOI: 10.1111/1440-1681.12840] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/10/2017] [Accepted: 07/25/2017] [Indexed: 12/22/2022]
Abstract
Gastric cancer (GC) is the most frequent leading cause of cancer-associated mortality worldwide that is linked to poor prognosis due to the lack of appropriate biomarkers. Our aim was to evaluate the MUC5AC and Oct-4 expression levels in GC and to assess their association with clinical factors. Immunohistochemical analysis (IHC) and qRT-PCR were performed in GC patients to examine the MUC5AC and Oct-4 expression levels. The mRNA level of MUC5AC was significantly decreased in tumour tissues compared with non-cancerous tissues (1.11 ± 0.69 vs 3.7 ± 0.71; P = .024). On the other hand, Oct-4 mRNA level was upregulated in tumour tissues as compared to normal tissues (2. 86 ± 0.78 vs 0.87 ± 0.54; P = .0015). Decreased expression of MUC5AC was detected in 27 patients (67.5%), while high to moderate expression levels were observed in 13 cases (32.5%), but in normal tissues the expression levels of MUC5AC were increased (P = .001). The decreased expression of MUC5AC was associated with aggressive tumour characteristics, such as TNM stage (P = .023), histologic type (P = .012) and lymph node metastasis (P = .001). High expression of Oct-4 was detected in 24 tumour tissues (60%), while 16 cases (40%) showed low expression level. Increased Oct-4 expression was correlated with clinicopathological characteristics such TNM stage (P = .002), histologic type (P = .008) and lymph node metastasis (P = .001). Our results showed that high Oct-4 expression and the reduction of MUC5AC expression may be involved in the progression and an unfavorable prognosis of GC.
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Affiliation(s)
- Milad Javanbakht
- School of Medicine Science, Islamic Azad University, Sarab, Iran
| | - Jamal Akhavanmoghadam
- Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR, Iran
| | - Amir Jouya Talaei
- Department of Genetics, Faculty of Life Science, Azad University of Tehran Medical Sciences Branch, Tehran, Iran
| | - Maryam Aghyani
- General practitioner (GP), Doctor of Medicine (MD), Tehran and Tabriz, Iran
| | - Mohamad Mozafari
- General practitioner (GP), Doctor of Medicine (MD), Tehran and Tabriz, Iran.,Graduated from Tabriz University of Medical Science, Tabriz, Iran
| | - Leila Khedmat
- Department of Social Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mohebbi
- General practitioner (GP), Doctor of Medicine (MD), Tehran and Tabriz, Iran
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34
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KLF4 deletion alters gastric cell lineage and induces MUC2 expression. Cell Death Dis 2016; 7:e2255. [PMID: 27277677 PMCID: PMC5143387 DOI: 10.1038/cddis.2016.158] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/15/2016] [Accepted: 05/06/2016] [Indexed: 12/16/2022]
Abstract
Gastric cancer is one of the most common types of cancer in the world, particularly in underdeveloped countries. The mechanism of gastric cancer is less understood compared with other types of gastrointestinal (GI) cancers. Krüppel-like factor 4 (KLF4) is a zinc-finger transcription factor and is a potential tumor suppressor in GI cancers. In this study, we have generated two mouse models, Rosa-Cre;Klf4fl/fl and Lgr5-Cre;Klf4fl/fl. KLF4 was deleted by Rosa-Cre in the gastric epithelia cells or by Lgr5-Cre in the antral stem cells in the adult mice. KLF4 deletion resulted in increased proliferating cells and decreased pit mucous cells. Surprisingly, the intestinal goblet cell marker, MUC2, which is not expressed in normal gastric tissues, was strongly induced at the base of the KLF4-deleted antral glands. To understand the clinical relevance of these findings, we analyzed the expression of KLF4 and MUC2 in human gastric cancer. In a subset of human gastric cancer, the expression of KLF4 is negatively associated with MUC2 expression. In conclusion, KLF4 is essential for normal homeostasis of antral stem cells; loss of KLF4 and expression of MUC2 could be important markers for gastric cancer diagnosis.
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35
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Zhang L, Wu WKK, Gallo RL, Fang EF, Hu W, Ling TKW, Shen J, Chan RLY, Lu L, Luo XM, Li MX, Chan KM, Yu J, Wong VWS, Ng SC, Wong SH, Chan FKL, Sung JJY, Chan MTV, Cho CH. Critical Role of Antimicrobial Peptide Cathelicidin for Controlling Helicobacter pylori Survival and Infection. THE JOURNAL OF IMMUNOLOGY 2016; 196:1799-1809. [DOI: 10.4049/jimmunol.1500021] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Abstract
The antimicrobial peptide cathelicidin is critical for protection against different kinds of microbial infection. This study sought to elucidate the protective action of cathelicidin against Helicobacter pylori infection and its associated gastritis. Exogenous cathelicidin was found to inhibit H. pylori growth, destroy the bacteria biofilm, and induce morphological alterations in H. pylori membrane. Additionally, knockdown of endogenous cathelicidin in human gastric epithelial HFE-145 cells markedly increased the intracellular survival of H. pylori. Consistently, cathelicidin knockout mice exhibited stronger H. pylori colonization, higher expression of proinflammatory cytokines IL-6, IL-1β, and ICAM1, and lower expression of the anti-inflammatory cytokine IL-10 in the gastric mucosa upon H. pylori infection. In wild-type mice, H. pylori infection also stimulated gastric epithelium-derived cathelicidin production. Importantly, pretreatment with bioengineered Lactococcus lactis that actively secretes cathelicidin significantly increased mucosal cathelicidin levels and reduced H. pylori infection and the associated inflammation. Moreover, cathelicidin strengthened the barrier function of gastric mucosa by stimulating mucus synthesis. Collectively, these findings indicate that cathelicidin plays a significant role as a potential natural antibiotic for H. pylori clearance and a therapeutic agent for chronic gastritis.
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Affiliation(s)
- Lin Zhang
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- †Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- ‡CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - William K. K. Wu
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- ‡CUHK Shenzhen Research Institute, Shenzhen 518057, China
- §Department of Anesthesia and Intensive Care, Chinese University of Hong Kong, Hong Kong, China
| | - Richard L. Gallo
- ¶Division of Dermatology, University of California, San Diego, La Jolla, CA 92093
| | - Evandro F. Fang
- ‖Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224
| | - Wei Hu
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
| | - Thomas K. W. Ling
- **Department of Microbiology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, China
| | - Jing Shen
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
| | - Ruby L. Y. Chan
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
| | - Lan Lu
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
| | - Xiao M. Luo
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
| | - Ming X. Li
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
| | - Kam M. Chan
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
| | - Jun Yu
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- †Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- ‡CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Vincent W. S. Wong
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- †Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
| | - Siew C. Ng
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- †Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
| | - Sunny H. Wong
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- †Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- ‡CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Francis K. L. Chan
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- †Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- ‡CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Joseph J. Y. Sung
- *Institute of Digestive Diseases and State Key Laboratory of Digestive Diseases, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- †Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
- ‡CUHK Shenzhen Research Institute, Shenzhen 518057, China
| | - Matthew T. V. Chan
- §Department of Anesthesia and Intensive Care, Chinese University of Hong Kong, Hong Kong, China
| | - Chi H. Cho
- #School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China; and
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Wen R, Gao F, Zhou CJ, Jia YB. Polymorphisms in mucin genes in the development of gastric cancer. World J Gastrointest Oncol 2015; 7:328-337. [PMID: 26600932 PMCID: PMC4644855 DOI: 10.4251/wjgo.v7.i11.328] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 07/01/2015] [Accepted: 09/07/2015] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer (GC) is the third leading cause of cancer-related death worldwide. In areas of high prevalence, such as Japan, South Korea and China, most cases of GC are related to Helicobacter pylori (H. pylori), which involves well-characterized sequential stages, including infection, atrophic gastritis, intestinal metaplasia, dysplasia, and GC. Mucins are the most abundant high-molecular-weight glycoproteins in mucus, which is the first line of defense and plays a major role in blocking pathogenic factors. Normal gastric mucosa shows expression of MUC1, MUC5AC and MUC6 that is specific to cell type. However, the specific pattern of MUC1, MUC5AC and MUC6 expression is changed in gastric carcinogenesis, accompanied by de novo expression of secreted MUC2. Recent studies have provided evidence that variations in these mucin genes affect many steps of GC development, such as H. pylori infection, and gastric precancerous lesions. In this review, we focus on studies of the association between polymorphisms in mucin genes and development of GC. This information should be helpful for the early detection, surveillance, and treatment of GC.
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37
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Prognostic evaluation of mucin-5AC expression in intrahepatic cholangiocarcinoma, mass-forming type, following hepatectomy. Eur J Surg Oncol 2015. [DOI: 10.1016/j.ejso.2015.07.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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38
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Exploring the role and diversity of mucins in health and disease with special insight into non-communicable diseases. Glycoconj J 2015; 32:575-613. [PMID: 26239922 DOI: 10.1007/s10719-015-9606-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 06/18/2015] [Indexed: 12/11/2022]
Abstract
Mucins are major glycoprotein components of the mucus that coats the surfaces of cells lining the respiratory, digestive, gastrointestinal and urogenital tracts. They function to protect epithelial cells from infection, dehydration and physical or chemical injury, as well as to aid the passage of materials through a tract i.e., lubrication. They are also implicated in the pathogenesis of benign and malignant diseases of secretory epithelial cells. In Human there are two types of mucins, membrane-bound and secreted that are originated from mucous producing goblet cells localized in the epithelial cell layer or in mucous producing glands and encoded by MUC gene. Mucins belong to a heterogeneous family of high molecular weight proteins composed of a long peptidic chain with a large number of tandem repeats that form the so-called mucin domain. The molecular weight is generally high, ranging between 0.2 and 10 million Dalton and all mucins contain one or more domains which are highly glycosylated. The size and number of repeats vary between mucins and the genetic polymorphism represents number of repeats (VNTR polymorphisms), which means the size of individual mucins can differ substantially between individuals which can be used as markers. In human it is only MUC1 and MUC7 that have mucin domains with less than 40% serine and threonine which in turn could reduce number of PTS domains. Mucins can be considered as powerful two-edged sword, as its normal function protects from unwanted substances and organisms at an arm's length while, malfunction of mucus may be an important factor in human diseases. In this review we have unearthed the current status of different mucin proteins in understanding its role and function in various non-communicable diseases in human with special reference to its organ specific locations. The findings described in this review may be of direct relevance to the major research area in biomedicine with reference to mucin and mucin associated diseases.
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Muszer M, Noszczyńska M, Kasperkiewicz K, Skurnik M. Human Microbiome: When a Friend Becomes an Enemy. Arch Immunol Ther Exp (Warsz) 2015; 63:287-98. [PMID: 25682593 PMCID: PMC4499106 DOI: 10.1007/s00005-015-0332-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 12/12/2014] [Indexed: 12/24/2022]
Abstract
The microorganisms that inhabit humans are very diverse on different body sites and tracts. Each specific niche contains a unique composition of the microorganisms that are important for a balanced human physiology. Microbial cells outnumber human cells by tenfold and they function as an invisible organ that is called the microbiome. Excessive use of antibiotics and unhealthy diets pose a serious danger to the composition of the microbiome. An imbalance in the microbial community may cause pathological conditions of the digestive system such as obesity, cancer and inflammatory bowel disease; of the skin such as atopic dermatitis, psoriasis and acne and of the cardiovascular system such as atherosclerosis. An unbalanced microbiome has also been associated with neurodevelopmental disorders such as autism and multiple sclerosis. While the microbiome has a strong impact on the development of the host immune system, it is suspected that it can also be the cause of certain autoimmune diseases, including diabetes or rheumatoid arthritis. Despite the enormous progress in the field, the interactions between the human body and its microbiome still remain largely unknown. A better characterization of the interactions may allow for a deeper understanding of human disease states and help to elucidate a possible association between the composition of the microbiome and certain pathologies. This review focuses on general findings that are related to the area and provides no detailed information about the case of study. The aim is to give some initial insight on the studies of the microbiome and its connection with human health.
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Affiliation(s)
- Magdalena Muszer
- Department of Microbiology, University of Silesia, Katowice, Poland
| | | | | | - Mikael Skurnik
- Department of Bacteriology and Immunology, Haartman Institute, Research Programs Unit, Immunobiology, University of Helsinki, Helsinki, Finland
- University Central Hospital Laboratory Diagnostics, Helsinki, Finland
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Park JS, Yeom JS, Seo JH, Lim JY, Park CH, Woo HO, Youn HS, Jun JS, Park JH, Ko GH, Baik SC, Lee WK, Cho MJ, Rhee KH. Immunohistochemical Expressions of MUC2, MUC5AC, and MUC6 in Normal, Helicobacter pylori Infected and Metaplastic Gastric Mucosa of Children and Adolescents. Helicobacter 2015; 20:260-8. [PMID: 25704078 DOI: 10.1111/hel.12198] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The aim of this study was to investigate expression of gastric mucins in children and adolescents and to assess their relations with age and Helicobacter pylori (H. pylori) infection. METHODS Gastric biopsies were collected from 259 pediatric and adulthood patients with gastrointestinal symptoms among all of patients undergone gastroduodenoscopy from 1990 to 2004 at Gyeongsang National University hospital and assorted based on H. pylori infection, age, and intestinal metaplasia as follows; H. pylori infection before 5 years of age or not, H. pylori infection between 5 and 9 years of age or not, H. pylori infection between 10 and 14 years of age or not, H. pylori infection between 20 and 29 years of age or not and intestinal metaplasia between 21 and 35 years of age. Total 810 tissue slides from the subjects were examined regarding expressions of Mucin2 (MUC2), Mucin5AC (MUC5AC), and Mucin6 (MUC6) in nine groups using immunohistochemical stains. A semiquantitative approach was used to score the staining extent of tissue slide. RESULTS Increased expressions of MUC2, MUC5AC, and MUC6 were noted in intestinal metaplasia compared with subjects infected with H. pylori between 20 and 29 years. Gastric expressions of MUC5AC were decreased in older than 5 years with H. pylori compared with in older than 5 years without H. pylori (p < .001). Expressions of MUC2 and MUC6 did not change significantly by H. pylori status. Some nuclear expressions of MUC2 and MUC6 were noted in children without intestinal metaplasia. CONCLUSIONS MUC5AC might be affected by chronic H. pylori infection. In addition to biomarkers for intestinal metaplasia or prognostic factors for gastric cancer in adults, MUC2 and MUC6 in children might have an another role, based on ectopic gastric nuclear expressions of MUC2 and MUC6 in children without intestinal metaplasia.
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Affiliation(s)
- Ji Sook Park
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Jung-Sook Yeom
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Ji-Hyun Seo
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Jae-Young Lim
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Chan-Hoo Park
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Hyang-Ok Woo
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Hee-Shang Youn
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Jin-Su Jun
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Ji-Hoe Park
- Department of Pediatrics, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Gyung-Hyuck Ko
- Department of Pathology, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Seung-Chul Baik
- Department of Microbiology, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Woo-Kon Lee
- Department of Microbiology, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Myung-Je Cho
- Department of Microbiology, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
| | - Kwang-Ho Rhee
- Department of Microbiology, Gyeonsang National University School of Medicine, Institute of Health Science, Gyeongsang National University Hospital, Jinju, Gyeongsangnam-do, Korea
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Zhou CJ, Zhang LW, Gao F, Zhang B, Wang Y, Chen DF, Jia YB. Association analysis of common genetic variations in MUC5AC gene with the risk of non-cardia gastric cancer in a Chinese population. Asian Pac J Cancer Prev 2015; 15:4207-10. [PMID: 24935372 DOI: 10.7314/apjcp.2014.15.10.4207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Several lines of evidence suggest that genetic variation in MUC5AC gene might contribute to the risk of gastric cancer. We conducted a case-control study to evaluate the relationship between common genetic variations in MUC5AC gene and non-cardia gastric cancer using an LD-based tagSNP approach in Baotou, north-western China. We genotyped 12 tagSNPs by TaqMan method among 288 cases with non-cardia gastric cancer and 281 normal controls. Unconditional logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for non-cardia gastric cancer risk in association with alleles, genotypes and haplotypes. We observed that the frequencies of rs3793964 C allele and rs11040869 A allele were significantly lower in cases than in controls. Meanwhile, minor allele homozygotes of rs3793964 and rs11040869 were significantly associated with a decreased risk of non-cardia gastric cancer when compared with their major allele homozygotes. Furthermore, a statistically significantly protective effect of rs885454 genotypes on non-cardia gastric cancer was also observed (for CT vs. CC: OR=0.581, 95%CI=0.408-0.829; for CT/TT vs. CC: OR=0.623, 95%CI=0.451-0.884). Our results indicated that some common genetic variations in the MUC5AC gene might have effects on the risk of non-cardia gastric cancer in our studied population.
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Affiliation(s)
- Cheng-Jiang Zhou
- School of Basic Medicine, Baotou Medical College, Baotou, China E-mail :
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Rugge M, Capelle LG, Fassan M. Individual risk stratification of gastric cancer: evolving concepts and their impact on clinical practice. Best Pract Res Clin Gastroenterol 2014; 28:1043-53. [PMID: 25439070 DOI: 10.1016/j.bpg.2014.09.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/02/2014] [Accepted: 09/15/2014] [Indexed: 01/31/2023]
Abstract
Gastric cancer (GC) is the third leading cause of cancer-related death worldwide and it mostly develops in long-standing inflammatory conditions, and Helicobacter pylori-gastritis, in particular. Despite the increasing understanding of both the phenotypic alterations and the molecular mechanisms occurring during GC multi-step carcinogenesis, no reliable biomarker is available to be reliably implemented into GC secondary prevention strategies. Multidisciplinary diagnostic approaches integrating endoscopy, serology, histology and molecular profiling currently appears as the most appropriate approach for patients' stratification into different GC risk classes.
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Affiliation(s)
- Massimo Rugge
- Department of Medicine, DIMED, Surgical Pathology and Cytopathology Unit, University of Padua, 35100 Padua, Italy.
| | - Lisette G Capelle
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, 3015 CE Rotterdam, The Netherlands
| | - Matteo Fassan
- Department of Medicine, DIMED, Surgical Pathology and Cytopathology Unit, University of Padua, 35100 Padua, Italy
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Akhavan-Niaki H, Samadani AA. Molecular insight in gastric cancer induction: an overview of cancer stemness genes. Cell Biochem Biophys 2014; 68:463-73. [PMID: 24078401 DOI: 10.1007/s12013-013-9749-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Gastric cancer is one of the most outgoing human cancers in the world. Two main functional types were described: Intestinal adenocarcinoma and diffuse one. The most important purpose of this review is to analyze and investigate the main genetic factors involved in tumorogenesis of stomach and the molecular mechanism of their expression regulation alongside with the importance of cancer stem cells and their relationship with gastric cancer. It is evident that proper diagnosis of molecular case of cancer may lead to absolute treatment and at least reduction in the disease severity. However, stemness factors such as Sox2, Oct3/4, and Nanog were related with induced pluripotent stem cells, proposing a correlation between these stemness factors and cancer stem cells. Moreover, aberrant induction by Helicobacter pylori of the intestinal-specific homeobox transcription factors, CDX1 and CDX2, also plays an important role in this modification. There are some genes which are directly activated by CDX1 in gastric cancer and distinguished stemness-related reprogramming factors like SALL4 and KLF5. Correspondingly, we also aimed to present the main important epigenetic changes such as DNA methylation, histone modification, and chromatin modeling of stemness genes in disease development. Remarkably, a better understanding of molecular bases of cancer may lead to novel diagnostic, therapeutic, and preventive approaches by some genetic and epigenetic changes such as gene amplifications, gene silencing by DNA methylation, losses of imprinting, LOH, and mutations. Consequently, genome-wide searches of gene expression are widely important for surveying the proper mechanisms of cancer emergence and development. Conspicuously, this review explains an outline of the molecular mechanism and new approaches in gastric cancer.
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Affiliation(s)
- Haleh Akhavan-Niaki
- Cellular and Molecular Biology Research Center, Babol University of Medical Sciences, Babol, Iran
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Abstract
Multigenic disease development is dependent on both missing and overactivated pathways, just as the homeostasis of our body systems is the product of many complex, redundant mechanisms. The goal of finding a common factor in the disease pathogenesis is difficult, as genetic and pathophysiological data are still incomplete, and the individual variability is enormous. Nevertheless, the examination of the role of human microbiota in illnesses using animal models of human diseases reared in defined (gnotobiotic) conditions could allow insight into the unusual complexity of the mechanisms involved in the initiation and maintenance of chronic diseases, including cancer. Although the most important findings in this fascinating field are still to come, a hypothesis, which is more than speculative, can be made, as it is clear that our bacterial companions affect our fates more than previously assumed.
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Xiao LJ, Zhao S, Zhao EH, Zheng X, Gou WF, Xing YN, Takano Y, Zheng HC. Clinicopathological and prognostic significance of MUC-2, MUC-4 and MUC-5AC expression in japanese gastric carcinomas. Asian Pac J Cancer Prev 2014; 13:6447-53. [PMID: 23464473 DOI: 10.7314/apjcp.2012.13.12.6447] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The mucin components of the gastric gel layer function as a protective and lubricating factor against luminal acid and proteolytic enzymes. Alteration of mucin expression in gastric preneoplastic and neoplastic lesions has suggested potential roles in neoplastic processes. This study aimed to assess the clinicopathological and prognostic significance of MUC-2, MUC-4 and MUC-5AC in Japanese gastric cancer. METHODS Expression of MUC-2, -4 and -5AC was evaluated on tissue microarrays of gastric carcinomas and adjacent non-cancerous mucosa specimens by immunohistochemistry and compared with clinicopathological parameters and survival time of the patients. RESULTS The three mucins were found to be expressed to a lesser extent in gastric carcinomas in comparison with non-cancerous mucosa (p<0.05). MUC-2 expression was negatively correlated with tumor size, depth of invasion, and TNM staging of gastric cancer (p<0.05), while that of MUC-5AC was negatively associated with the depth of invasion, venous invasion, lymph node metastasis and TNM staging (p<0.05), but positively with MUC-4 and MUC-2 expression (p<0.05). There was higher MUC-2 expression in intestinal- than diffuse-type carcinomas (p<0.05). Kaplan-Meier analysis indicated no relationship between expression of the three mucins and the cumulative survival rate of patients, even stratified according to the depth of invasion (p>0.05). CONCLUSION Down-regulated expression of MUC-2, -4 and -5AC may be involved in pathogenesis, invasion, metastasis or differentiation of gastric carcinoma. Their altered expression might therefore be employed as an indicator of pathobiological behavior.
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Affiliation(s)
- Li-Jun Xiao
- Department of Biochemistry and Molecular Biology, Institute of Pathology and Pathophysiology, College of Basic Medicine, China Medical University, Shenyang, China.
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The changes in MUC5AC expression in gastric cancer before and after Helicobacter pylori eradication. Clin Res Hepatol Gastroenterol 2014; 38:235-40. [PMID: 23910060 DOI: 10.1016/j.clinre.2013.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 05/31/2013] [Accepted: 06/24/2013] [Indexed: 02/04/2023]
Abstract
PURPOSE To investigate MUC5AC expression in gastric cancer before and after Hp eradication. METHODS The MUC5AC protein and mRNA were detected in gastric cancer tissue by western blot and real time PCR protocols before and after Hp eradication (Hp positive group). Gastric cancer tissue without Hp infection served as the control group (Hp negative group). RESULTS The MUC5AC protein and mRNA expression was more significantly increased in gastric cancer after Hp eradication as compared to that before Hp eradication, but it was significantly lower than of the control group. The relative amount of MUC5AC in the well-differentiated cancer was higher than that of the moderately or poorly-differentiated cancer, in either Hp positive or control groups. The relative amount of MUC5AC in cancer tissues with more than five metastatic lymph nodes was significantly lower than that of the cancer tissues with five or less metastatic lymph nodes, and was significantly lower in the Hp positive group as compared to that of the control group. CONCLUSIONS The reduction of the MUC5AC might be related to gastric carcinogenesis caused by Hp and the progression of gastric cancer.
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Perrais M, Rousseaux C, Ducourouble MP, Courcol R, Vincent P, Jonckheere N, Van Seuningen I. Helicobacter pylori urease and flagellin alter mucin gene expression in human gastric cancer cells. Gastric Cancer 2014; 17:235-46. [PMID: 23703470 DOI: 10.1007/s10120-013-0267-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 04/21/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND Helicobacter pylori (Hp), which is one of the causative agents in human gastric adenocarcinoma, is known to interact with mucous gel and alter mucin gene expression. The aim of this work was to study, using an in vitro model of cell infection, the effects of urease, flagellin, and CagA virulence factors on the regulation of the four 11p15 mucin genes (MUC2, MUC5AC, MUC5B, and MUC6). METHODS KATO-III and AGS gastric cancer cells were infected for 1, 3 or 6 h with Hp wild-type strains (ATCC 43504, N6, and SS1) or corresponding isogenic mutants deficient for urease subunit B, flagellin subunit A, and CagA. mRNA levels of MUC2, MUC5B, MUC5AC and MUC6 were assessed by RT-PCR, and functional activity of their promoters was measured by transient transfection assays. RESULTS Infection of KATO-III cells with Hp wild-type strains resulted in an early (at 1 h) transient expression of MUC2, MUC5AC, and MUC6 mRNA concomitant with those of interleukin (IL)-1β, IL-8, and TNF-α cytokines. In these cells, the UreB(-) isogenic mutant induced strong activation of MUC5AC expression, and UreB-responsive elements were located in the -486/-1 region of the promoter. FlaA(-) and CagA(-) mutants had no effect on mucin gene mRNA levels in KATO-III cells. In AGS cells, Hp-responsive elements were identified in all promoters, and overexpression of NF-κB induced upregulation of MUC5AC promoter activity when infected with the UreB(-) isogenic mutant. CONCLUSION These results indicate that Hp infection of gastric cancer cells alters 11p15 mucin gene transcription and that MUC5AC downregulation is mediated by urease virulence factor.
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Affiliation(s)
- Michaël Perrais
- Inserm, UMR837, JPARC, Team "Mucins, Epithelial Differentiation and Carcinogenesis", Bâtiment G. Biserte, Rue Polonovski, 59045, Lille Cedex, France
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Cui XQ, Jiang M, Dong QJ, Gao YQ, Xie XJ, Zhan SH. Expression of mucin-1 and mucin-2 in different types of gastric lesions. Shijie Huaren Xiaohua Zazhi 2013; 21:3112-3118. [DOI: 10.11569/wcjd.v21.i29.3112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To detect the expression of mucin-1 and mucin-2 in gastritis, intestinal metaplasia and gastric cancer.
METHODS: Thirty patients with gastritis (without intestinal metaplasia), thirty patients with intestinal metaplasia and forty-eight patients with gastric cancer, who were treated at our hospital from November 2011 to April 2012, were enrolled in this study. The expression of mucin-1 and mucin-2 in different types of gastric lesions was determined by immunohistochemistry.
RESULTS: The expression of mucin-1 in intestinal metaplasia was lower than that in gastritis (P > 0.05), but the expression of mucin-2 in intestinal metaplasia was higher than that in gastritis (P < 0.05). The rate of Helicobacter pylori (H. pylori) infection in intestinal metaplasia was higher than that in gastritis (P > 0.05). The expression of mucin-1 in gastric cancer was higher than that in intestinal metaplasia (P > 0.05), but the expression of mucin-2 in gastric cancer was lower than that in intestinal metaplasia (P < 0.05). The rate of H. pylori infection in gastric cancer was lower than that in intestinal metaplasia (P < 0.05). The expression of mucin-1 in gastric cancer was lower than that in gastritis (P > 0.05), but the expression of mucin-2 in gastric cancer was higher than that in gastritis (P < 0.05). The rate of H. pylori infection in gastric cancer was lower than that in gastritis (P > 0.05).
CONCLUSION: The expression of mucin-1 is down-regulated in the evolution of gastric cancer; however, the expression of mucin-2 is positive only in precancerous lesions and gastric cancer. This finding suggests that mucin-2 may be more closely related to the occurrence of gastric cancer. There is a negative correlation between expression of mucin-1 and H. pylori infection, but a positive correlation between mucin-2 expression and H. pylori infection.
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AnandKumar A, Devaraj H. Tumour Immunomodulation: Mucins in Resistance to Initiation and Maturation of Immune Response Against Tumours. Scand J Immunol 2013; 78:1-7. [DOI: 10.1111/sji.12019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 10/31/2012] [Indexed: 12/22/2022]
Affiliation(s)
- A. AnandKumar
- Unit of Biochemistry and Glycotechnology; University of Madras; Guindy campus; Chennai; India
| | - H. Devaraj
- Unit of Biochemistry and Glycotechnology; University of Madras; Guindy campus; Chennai; India
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Shi D, Qiu XM, Bao YF. Effects of Helicobacter pylori infection on MUC5AC protein expression in gastric cancer. Future Oncol 2013; 9:115-20. [PMID: 23252568 DOI: 10.2217/fon.12.172] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
AIM To investigate the effects of the expression of the MUC5AC protein in gastric cancer depending on the Helicobacter pylori (Hp) infection status. MATERIALS & METHODS The MUC5AC protein and mRNA were detected using western blot and real-time PCR protocols in gastric cancer tissue and stratified for Hp infection. Gastric mucus membranes near the cancer site serve as the control group. RESULTS The expression of MUC5AC protein and mRNA is significantly decreased in gastric cancer tissue (p < 0.05). The decrease was more significant in the Hp-infected group than in the Hp-uninfected group (p < 0.05). CONCLUSION The infection of Hp is correlated with a decrease in MUC5AC protein amount in gastric cancer tissue. The current result suggests that there may be a potential necessary link between Hp, MUC5AC and gastric cancer.
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Affiliation(s)
- Ding Shi
- Department of Gastroenterology, The First People's Hospital of Yuhang District, Hangzhou 311100, Zhejiang Province, China.
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