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  • Title: Inhibition of the proliferative effect of transforming growth factor-alpha by c-myc antisense DNA in human ovarian cancer cells.
    Author: Park HY.
    Journal: Biochem Mol Biol Int; 1997 Dec; 43(5):1015-22. PubMed ID: 9415810.
    Abstract:
    In search of critical genes associated with the mechanism of transforming growth factor-alpha (TGF alpha) action in human ovarian cancer, it was found that TGF alpha stimulates c-myc gene expression in human ovarian NIH:OVCAR-3. The role of c-myc in TGF alpha-stimulated growth of NIH:OVCAR-3 cells was examined by the use of the synthetic antisense-myc phosphorothioate oligonucleotide (OPT). Prior exposure of NIH:OVCAR-3 cells to an antisense-myc OPT inhibited TGF alpha-stimulated cell growth and DNA synthesis in a dose-dependent and sequence-specific manner over 4 days. c-Myc protein expression was down-regulated in the antisense-myc treated cells. These results demonstrate both the specific and durable effects of the antisense-myc OPT. Furthermore, the results suggest a role for c-myc in TGF alpha-stimulated cell proliferation.
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