TY - JOUR T1 - c-Myc Exerts a Protective Function through Ornithine Decarboxylase against Cellular Insults JF - Molecular Pharmacology JO - Mol Pharmacol SP - 1400 LP - 1408 DO - 10.1124/mol.62.6.1400 VL - 62 IS - 6 AU - Jong Kuk Park AU - Young Min Chung AU - Seongman Kang AU - Jae-Uk Kim AU - Yun-Taik Kim AU - Hyung Jung Kim AU - Yeul Hong Kim AU - Jun Suk Kim AU - Young Do Yoo Y1 - 2002/12/01 UR - http://molpharm.aspetjournals.org/content/62/6/1400.abstract N2 - c-Myc is known to control cell proliferation and apoptosis, and much effort has been focused on elucidating the mechanisms by which c-Myc works. In this study, we show that c-Myc expression is induced by many cellular insults, including cisplatin, doxorubicin, paclitaxel, 5-flourouracil, H2O2, and radiation, and the enhanced expression of c-Myc protects against cell death caused by these cellular insults through ornithine decarboxylase (ODC) induction. To investigate the cellular protective role of c-Myc, we constructed a stable transfectant of ODC, one of the many transcriptional targets of c-Myc in cells, and found that enhanced expression of ODC inhibited cell death induced by cellular insults such as cisplatin, H2O2, and radiation. We also found that cisplatin activated nuclear factor-κB, and this subsequently induced c-Myc expression, resulting in the blocking of apoptosis through ODC induction. The results herein, therefore, strongly suggest another role for c-Myc in a stress-response function; that is, it promotes cell survival under stressful conditions. ER -