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Helicobacter PyloriAssociation with Expression of CDX2 in Intestinal Metaplasia
Tayyab Hamid Malik1, WangYu2, XuHong1
1Department of Gastroenterology, Medicine Unit, First Hospital of Jilin University, Xinmin Street, Changchun 130021, China.
Objective:
To assess whether helicobacter pylori was associated with CDX2 expression in intestinal metaplasia, atrophic gastritis, dysplasia and gastric cancer.
Study Design:
Cross-sectional study.
Place And Duration Of Study:
Department of Pathology, The First Hospital of Jilin University, Changchun, China, from August 2016 to January 2017.
Methodology:
CDX2 expression was evaluated in 62 gastric antral biopsies; including 32 cases of intestinal metaplasia (IM) and 10 cases each of atrophic gastritis (AG), dysplasia and gastric cancer. Hematoxylin and Eosin staining was used to detect H.pyloriand immunohistochemistry was performed to observe CDX2 in the samples.
Results:
Of the 62 patients inducted in the study, CDX2 expression was observed in 53 (85.5%). Mean age of these patients was 59 years (s.d.:11.3; range: 38-87) and included 32 males (60.38%) and 21 females (39.62%). However, age and gender were not found to be significantly associated with expression of CDX2 (p >0.05). CDX2 was very frequently expressed in individuals with IM (90.6%). Most of the patients with IM were males (17/29) as compared to females (12/29). However, the difference was not statistically significant (p=0.568). Only 4 out of 29 IM CDX2 positive specimens tested positive for H.pylori(p=1.0).
Conclusion:
CDX2 is highly expressed along the atrophic gastritis-metaplasia-dysplasia-cancer sequential. Though CDX2 expression is quite dominant in IM, but its expression is not associated with H.pyloriinfection.
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