Expression of Cdx2 and LI-cadherin in intestinal metaplasla of gastric mucosa and gastric adenocarcinoma of the intestinal type
10.3760/cma.j.issn.1007-5232.2009.07.008
- VernacularTitle:尾侧型同源转录因子2、肝肠钙粘连蛋白在肠型胃癌及胃黏膜肠上皮化生组织中的表达及意义
- Author:
Xin CHEN
;
Bangmao WANG
- Publication Type:Journal Article
- Keywords:
Cdx-2 protein;
LI cadherin(liver-intestine) protein;
Human;
Stomach;
Metaplasia;
Adenocarcinoma
- From:
Chinese Journal of Digestive Endoscopy
2009;26(7):360-363
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the expression of caudal type homeobox transcription factor 2 (Cdx2) and liver intestinal cadherin (LI-CD) in intestinal metaplasia ( IM ) of gastric mucosa and gastric adenocarcinoma of the intestinal type (GAIT). Methods By using immunohistochemical method, the ex-pressions of Cdx2 and LI-CD were detected in biopsy sample including 30 cases of GAIT, 30 IM and 30 nor-mal controls. Results The positive rate of Cdx2 expression was 0, 93.3% and 46.7% in normal stomach mucosa, IM and GAIT, respectively. The positive rates of Cdx2 expression in IM and GAIT were significant-ly higher than that in normal stomach mucosa ( P < 0. 005 ), and the expression of Cdx2 in IM was signifi-cantly higher than that in GAIT (P<0. 005). Similarly, LI-CD was also negative in normal stomach muco-sa, and positive rates were 96. 7% and 73. 3% in IM and GAIT group, which were significantly higher than that in normal stomach mucasa (P < 0. 005 ), and LI-CD expression was also significantly higher in IM than in GAIT (P < 0. 05 ). In addition, the staining intensity of Cdx2 and LI-CD expressions in IM exhibited sig-nificant correlation (r=0. 827, P<0.01), but those in GAIT did not (r =0.438, P=0. 117). Conclu-sion Ectopic expression of Cdx2 and LI-CD can be found in IM and GAIT tissues, which could be an early marker in the disease progression. There is correlation between Cdx2 and LI-CD expression in IM tissue of human, and presumably, Cdx2 regulates LI-CD in IM development.
