期刊
ONCOGENE
卷 25, 期 28, 页码 3934-3938出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.onc.1209422
关键词
lung cancer; KRAS; RAS genes; cancer progression
The RASSF8 gene, which maps close to the KRAS2 gene, contains a RAS-associated domain and encodes a protein that is evolutionarily conserved from fish to humans. Analysis of the RASSF8 transcript revealed a complex expression pattern of 5'-UTR mRNA isoforms in normal lung and in lung adenocarcinomas (ADCAs), with no apparent differences. However, RASSF8 gene transcript levels were similar to seven-fold-lower in lung ADCAs as compared to normal lung tissue. Expression of RASSF8 protein by transfected lung cancer cells led to inhibition of anchorage-independent growth in soft agar in A549 cells and reduction of clonogenic activity in NCI-H520 cells. These results raise the possibility protein encoded by RASSF8 is a novel tumor suppressor for lung cancer.
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