%0 Journal Article %1 Park2001 %A Park, W. S. %A Oh, R. R. %A Kim, Y. S. %A Park, J. Y. %A Lee, S. H. %A Shin, M. S. %A Kim, S. Y. %A Kim, P. J. %A Lee, H. K. %A Yoo, N. Y. %A Lee, J. Y. %D 2001 %J J Pathol %K Adenocarcinoma,_genetics/pathology Adult Aged Aged,_80_and_over Alleles Antigens,_CD95,_genetics Apoptosis,_genetics Female Genetic_Markers Humans Loss_of_Heterozygosity,_genetics Male Middle_Aged Mutation,_Missense,_genetics Polymerase_Chain_Reaction Polymorphism,_Single-Stranded_Conformational Stomach_Neoplasms,_genetics/pathology %N 2 %P 162-168 %T Somatic mutations in the death domain of the Fas (Apo-1/CD95) gene in gastric cancer. %V 193 %X It is now believed that genes regulating apoptosis are also important variables in cancer development. Fas, a transmembrane protein of the tumour necrosis factor receptor family, is a key molecule for cell death signalling. The mutation of the primary structure of the Fas gene might also be one of the possible mechanisms that disrupt Fas-mediated apoptosis in tumour cells. The purpose of this study was to determine whether somatic mutation of the Fas gene could be involved in the tumourigenesis of gastric cancer. Polymerase chain reaction (PCR)-based loss of heterozygosity (LOH) analysis with two intragenic polymorphic markers, and mutation analysis for the entire coding regions of the Fas gene were performed in 43 cases of gastric cancer, using PCR-single-strand conformational polymorphism sequencing. Five (11.6%) missense mutations were detected, only in the death domain of the Fas gene. Although these mutations were observed only in intestinal-type gastric cancers, there was no statistically significant difference in the frequency of Fas mutation between intestinal- and diffuse-type gastric cancer (p=0.068). Nine LOH out of 22 informative cases were also detected with one or both markers (41%). Three of them demonstrated a somatic mutation in the remaining allele, indicating the inactivation of both alleles. These results suggest that genetic alterations of the Fas gene may not only be limited to gastric cancer cell protection through Fas resistance, but may also play an important role in tumour promotion and/or progression in a subset of gastric cancer.

@article{Park2001, abstract = {It is now believed that genes regulating apoptosis are also important variables in cancer development. Fas, a transmembrane protein of the tumour necrosis factor receptor family, is a key molecule for cell death signalling. The mutation of the primary structure of the Fas gene might also be one of the possible mechanisms that disrupt Fas-mediated apoptosis in tumour cells. The purpose of this study was to determine whether somatic mutation of the Fas gene could be involved in the tumourigenesis of gastric cancer. Polymerase chain reaction (PCR)-based loss of heterozygosity (LOH) analysis with two intragenic polymorphic markers, and mutation analysis for the entire coding regions of the Fas gene were performed in 43 cases of gastric cancer, using PCR-single-strand conformational polymorphism sequencing. Five (11.6%) missense mutations were detected, only in the death domain of the Fas gene. Although these mutations were observed only in intestinal-type gastric cancers, there was no statistically significant difference in the frequency of Fas mutation between intestinal- and diffuse-type gastric cancer (p=0.068). Nine LOH out of 22 informative cases were also detected with one or both markers (41%). Three of them demonstrated a somatic mutation in the remaining allele, indicating the inactivation of both alleles. These results suggest that genetic alterations of the Fas gene may not only be limited to gastric cancer cell protection through Fas resistance, but may also play an important role in tumour promotion and/or progression in a subset of gastric cancer.}, added-at = {2010-01-26T20:35:53.000+0100}, author = {Park, W. S. and Oh, R. R. and Kim, Y. S. and Park, J. Y. and Lee, S. H. and Shin, M. S. and Kim, S. Y. and Kim, P. J. and Lee, H. K. and Yoo, N. Y. and Lee, J. Y.}, biburl = {https://www.bibsonomy.org/bibtex/208237dcd8adcc0e7fbfeaaa1da620a78/denilw}, institution = {Department of Pathology and Cancer Research Institutes, College of Medicine, The Catholic University of Korea, Seoul 137-701, Korea.}, interhash = {14b1978199cad938a3c794518a1d2386}, intrahash = {08237dcd8adcc0e7fbfeaaa1da620a78}, journal = {J Pathol}, keywords = {Adenocarcinoma,_genetics/pathology Adult Aged Aged,_80_and_over Alleles Antigens,_CD95,_genetics Apoptosis,_genetics Female Genetic_Markers Humans Loss_of_Heterozygosity,_genetics Male Middle_Aged Mutation,_Missense,_genetics Polymerase_Chain_Reaction Polymorphism,_Single-Stranded_Conformational Stomach_Neoplasms,_genetics/pathology}, month = Feb, number = 2, owner = {denilw}, pages = {162-168}, pii = {3.0.CO;2-A}, pmid = {11180161}, timestamp = {2010-01-26T20:36:02.000+0100}, title = {Somatic mutations in the death domain of the Fas (Apo-1/CD95) gene in gastric cancer.}, volume = 193, year = 2001 }