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KMID : 0914820050050010034
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Journal of the Korean Gastric Cancer Association
2005 Volume.5 No. 1 p.34 ~ p.39
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Expression Pattern of KLF6 in Korean Gastric Cancers
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Cho Yong-Gu
Park Cho-Hyun
Nam Suk-Woo
Kim Chang-Jae
Yoo Nam-Jin
Lee Jung-Yong
Kim Su-Young
Lee Sug-Hyung
Park Won-Sang
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Abstract
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Purpose: KLF6, a member of the KLF family, is a ubiquitous zinc finger tumor suppressor protein that is mutated in several human cancers. Our aim was to determine whether the expression pattern of KLF6 might be associated with gastric cancer development and, if so, to determine to which pathologic parameter it is linked.
Materials and Methods: For the construction of the gastric cancer tissue microarray, 85 paraffin-embedded tissues containing gastric cancer areas were cored 3 times and transferred to the recipient master block. The expression pattern of KLF6 was examined on tissue microarray slides by using immunohistochemistry and was compared with pathologic parameters, including histologic type, depth of invasion, lymph node metastasis, and peritoneal dissemination.
Results: The KLF6 protein was expressed on superficial and foveolar epithelial cells in the gastric mucosa. We found loss of KLF6 expression in 28 (32.9%) of the 85 gastric cancer tissues. There was a significant correlation between loss of KLF6 expression and lymph-node metastasis. However, other pathologic parameters, such as histologic type, depth of invasion, and peritoneal dissemination, were not statistically associated with loss of KLF6 expression.
Conclusion: Our findings suggest that loss of KLF6 expression may contribute to abnormal regulation of gastrointestinal epithelial cell growth and differentiation and to the development and/or progression of Korean gastric cancer.
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KEYWORD
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Kruffel-like factor, Zinc finger protein, Apoptosis, Tumor suppressor, Immunohistochemistry
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