| Aberrant activation-induced cytidine deaminase expression is associated with mucosal intestinalization in the early stage of gastric cancer. | |
| | |
MedLine Citation:
|
PMID: 21538122 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Although Helicobacter pylori is a risk factor for gastric cancer (GC), its detailed carcinogenesis remains unclear. Recently, aberrant expression of activation-induced cytidine deaminase (AID) was demonstrated in gastric epithelium with H. pylori infection and seems to cause the accumulation of mutation. This investigation aims to elucidate whether or not AID expression plays an important role in the carcinogenesis of early GC. We examined the correlation between immunohistochemical AID expression and histological characteristics, including pre-existing chronic gastritis and cellular mucin phenotype in 138 cases of intramucosal GC. Furthermore, we investigated the relationship between AID, p53 protein, and β-catenin. The low degree of polymorphonuclear neutrophil activity, and the high degree of glandular atrophy and intestinal metaplasia were significantly correlated with the high levels of AID expression in non-neoplastic mucosa (P = 0.007, P ≤ 0.001, and P = 0.003). With regard to mucin phenotype of carcinoma, the intestinal phenotype tended to have the higher AID expression levels (P = 0.052). AID showed close correlations with Cdx2 and nuclear staining of β-catenin (P = 0.003, P = 0.034). As for p53 protein, no correlation was found with AID expression. Our findings suggest that aberrant AID expression is correlated with persistent inflammatory condition induced by H. pylori infection and may contribute to the development of GC through an inflammatory condition and intestinalization. |
| | |
Authors:
|
Ayako Goto; Minako Hirahashi; Mikako Osada; Kazuhiko Nakamura; Takashi Yao; Masazumi Tsuneyoshi; Ryoichi Takayanagi; Yoshinao Oda |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-5-3 |
Journal Detail:
|
Title: Virchows Archiv : an international journal of pathology Volume: - ISSN: 1432-2307 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
|
Created Date: 2011-5-3 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9423843 Medline TA: Virchows Arch Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Anatomic Pathology, Pathological Sciences, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Identifying Patterns of Early Risk for Mental Health and Academic Problems in Adolescence: A Longitu...
Next Document: Differential expression of MYC in H. pylori-related intestinal and diffuse gastric tumors.