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		题名	作者	年代	出处	被引量
	1	Ets1 as a marker of malignant potential in gastric carcinoma显示文摘AIM: Ets1 proto-oncogene is a transcription factor involved in the activation of several genes of tumor invasion and metastasis. We aimed to determine the relationship between the extent and intensity of Ets1 expression and patients'' clinicopathological factors in gastric carcinoma. METHODS: Immunohistochemical analysis was performed for gastric tumor paraffin-embedded sections, followed by image analysis. RESULTS: Ets1 was not expressed in the normal gastric epithelium and its surrounding cells. The percentage of Ets1 expressing cells detected increased significantly in both epithelial tumor and stromal cells from high T classification, lymph node metastasis positive, clinical advanced-stage groups (P<0.05). The level of Etsl staining in epithelial tumor cells also reflected the degree of cell differentiation. The percentage of epithelial and stromal cells expressing Ets1 was significantly correlated with the presence of lymph node metastasis (P=0.014 and P=0.O01 respectively). Ets1 expression was not observed in tissue samples from patients with benign gastric ulcers.CONCLUSION: Ets1 protein expression in epithelial tumor cells reflects the degree of differentiation, and the percentage of Etsl positive tumor and stromal cells correlates with lymph node metastasis. Thus Etsl is a valuable marker of malignant potential in terms of invasiveness and metastasis of gastric carcinoma. It is also possible that inhibition of Etsl is a potential avenue for therapy in gastric cancer.	YongYu Yi-ChuZhang Wen-ZhuZhang Li-SongShen PaulHertzog TrevorJWilson Da-KangXu	2003	World Journal of Gastroenterology2003，9，10：	8

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