| Helicobacter pylori infection, oncogenic pathways and epigenetic mechanisms in gastric carcinogenesis. | |
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MedLine Citation:
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PMID: 20465395 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Chronic colonization of the human stomach by Helicobacter pylori, a Gram-negative bacterium, is the major cause of chronic gastritis, peptic ulcers and gastric cancer. Recent progress has elucidated important bacterial and host factors that are responsible for H. pylori-induced gastric inflammation and gastric malignancy. H. pylori cytotoxin-associated antigen A is the major oncogenic factor injected into host cells from bacteria and it disrupts epithelial cell functions. Together with H. pylori cag pathogenicity island, it causes general inflammatory stress within gastric mucosa and activates multiple oncogenic pathways in epithelial cells. A growing list of these pathways includes NF-kappaB, activator protein-1, PI3K, signal transducers and activators of transcription 3, Wnt/beta-catenin and cyclooxygenase 2. H. pylori induces epigenetic alterations, such as DNA methylation and histone modification, which play critical roles in oncogenic transformation. In addition, investigations into gastric stem cell or progenitor cell biology have shed light on the mechanisms through which gastric cancer may originate. Continued investigation in these areas will yield novel insights and help to elucidate the mechanisms of bacteria-induced carcinogenesis. |
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Authors:
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Song-Ze Ding; Joanna B Goldberg; Masanori Hatakeyama |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review |
Journal Detail:
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Title: Future oncology (London, England) Volume: 6 ISSN: 1744-8301 ISO Abbreviation: Future Oncol Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-05-14 Completed Date: 2010-08-13 Revised Date: 2011-09-26 |
Medline Journal Info:
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Nlm Unique ID: 101256629 Medline TA: Future Oncol Country: England |
Other Details:
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Languages: eng Pagination: 851-62 Citation Subset: IM |
Affiliation:
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Department of Microbiology, University of Virginia Health System, Charlottesville, VA 22908, USA. song.ding@uky.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cell Transformation, Neoplastic / genetics*, metabolism Epigenesis, Genetic Helicobacter Infections / complications*, genetics, metabolism Helicobacter pylori Humans Stomach Neoplasms / genetics*, microbiology* |
| Grant Support | |
ID/Acronym/Agency:
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R01 AI051291-04/AI/NIAID NIH HHS; R01-AI51291/AI/NIAID NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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