期刊
ONCOGENE
卷 20, 期 33, 页码 4450-4456出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.onc.1204588
关键词
cyclo-oxygenase-2; NSAID; colon cancer; subtraction cloning
资金
- NCI NIH HHS [P30 CA68485, P0 CA77839] Funding Source: Medline
- NIDDK NIH HHS [DK 47297] Funding Source: Medline
Numerous reports suggest that use of nonsteroidal anti-inflammatory drugs (NSAIDs) decrease mortality from colorectal cancer. To better understand all of the mechanisms underlying this effect, the global pattern of gene expression in colon carcinoma cells following treatment with NS-398, a selective cyclooxygenase-2 inhibitor was evaluated. We utilized suppression subtractive hybridization combined with differential screening to identify genes whose expression was affected following treatment. Among the subtracted cDNA fragments confirmed as differentially expressed, there were two which are known to be involved in the regulation of cell adhesion (human FAT and proto-cadherin-7). We identified two other genes whose levels were decreased and these are known to be involved in the regulation of cell proliferation (cyclin K and p-100). We identified additional genes which are involved in different signaling pathways which regulate programmed cell death (Dynamin 2, Pdcd4 and LIP.1). These results provide evidence that some of the effects of NS-398 on carcinoma cells may be due to modulation of genes which regulate programmed cell death, cell proliferation and cell-cell communication. Additional studies are underway to determine the biological function of the novel genes that were identified.
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