KMID : 0191120110260050647
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Journal of Korean Medical Science 2011 Volume.26 No. 5 p.647 ~ p.653
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CDX1 and CDX2 Expression in Intestinal Metaplasia, Dysplasia and Gastric Cancer
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Kang Jung-Mook
Lee Byoung-Hwan Kim Na-Young Lee Hye-Seung Lee Hee-Eun Park Ji-Hyun Kim Joo-Sung Jung Hyun-Chae Song In-Sung
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Abstract
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Intestinal metaplasia (IM) has been regarded as a premalignant condition. However, the pathogenesis of IM is not fully understood. The aim of this study was to evaluate the role of CDX1 and CDX2 in the formation of IM and the progression to dysplasia and gastric cancer (GC). A total of 270 subjects included 90 with GC, dysplasia and age- and sex-matched controls. Real-time PCR (RT-PCR) was performed with body specimens for CDX1 and CDX2. The expression of CDX2 was significantly higher in H. pylori positive group than H. pylori negative group (P = 0.045). CDX1 and CDX2 expression increased proportional to the IM grade of the body (P < 0.001). CDX2 expression was significantly higher in incomplete type of IM than in complete type (P = 0.045). The expression of CDX1 in dysplasia group was significantly higher than in the control group (P = 0.001); in addition, CDX1 and CDX2 in cancer group was significantly higher than control group (P < 0.001, and P < 0.001, respectively). Aberrant expression of CDX1 and CDX2 correlated with H. pylori infection and grade of IM in the body. Furthermore, the results suggest that CDX1 and CDX2 play a role in the progression to GC and dysplasia.
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KEYWORD
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CDX1, CDX2, Intestinal Metaplasia, Stomach Neoplasms, Dysplasia
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