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Oncogene. 2005 Jun 30;24(28):4588-90.

Genetic alterations of the KLF6 gene in gastric cancer.

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  • 1Department of Pathology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-701, Korea.


The KLF6 is a zinc-finger tumor suppressor that is frequently mutated in several human cancers and broadly involved in differentiation and development, growth-related signal transduction, cell proliferation, apoptosis, and angiogenesis. To determine whether genetic alterations of KLF6 gene are involved in the development and/or progression of gastric cancer, we have screened a set of 80 sporadic gastric cancers for mutations and allele loss of the KLF6 gene. Four missense mutations, S155R, P172 T, S180L, and R198 K, were detected in transactivation domain of the KLF6 gene and one of them had biallelic mutations with somatic mutation of one allele and loss of the remaining allele. All of the cases with mutation were of advanced intestinal-type gastric cancer with lymph node metastasis. In addition, 16 (43.2%) of 37 informative cases showed allelic loss at KLF6 locus. Interestingly, allelic loss was also frequent in intestinal-type gastric cancer. Therefore, our data suggest that genetic alterations of KLF6 gene might play an important role in the development or progression of sporadic gastric cancers.

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