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Cellular senescence is an important tumor suppression process in vivo. Tamoxifen is a well-known anti-breast cancer drug; however, its molecular function is poorly understood. Here, we examined whether tamoxifen promotes senescence in breast cancer and colon cancer cells for the first time.Human breast cancer MCF-7, T47D, and MDA-MB-435 and colorectal cancer HCT116 cells were treated with tamoxifen...
Resveratrol is a phytoalexin found in grapes and other foods that has been shown to have anticancer and anti-inflammatory effects. Because protein kinase CKII is involved in cell proliferation and oncogenesis, we examined whether resveratrol could modulate CKII activity. Resveratrol was shown to inhibit the phosphotransferase activity of CKII with IC 50 of about 10 μM. Steady state studies...
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