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Rottlerin induces apoptosis of HT29 colon carcinoma cells through NAG-1 upregulation via an ERK and p38 MAPK-dependent and PKC δ-independent mechanism.

Chem Biol Interact 2012 Apr 5;197(1):1-7. Epub 2012 Mar 5.

Department of Immunology, School of Medicine, Keimyung University, Dalseo-Gu, Daegu, Republic of Korea.

Rottlerin, a selective inhibitor of novel isoforms of protein kinase C δ (PKC δ), has been shown to exert multiple effects on cancer cells, including inhibition of cell proliferation and migration. However, the molecular mechanisms responsible for these effects are not fully understood. We found that rottlerin dramatically induced non-steroidal anti-inflammatory drug activated gene-1 (NAG-1) expression in both p53 wild-type and p53-null cancer cell lines, suggesting that NAG-1 upregulation is a common response to rottlerin that occurs independently of p53 in multiple cell lines. Read More

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