A novel dithiocarbamate analogue with potentially decreased ALDH inhibition has copper-dependent proteasome-inhibitory and apoptosis-inducing activity in human breast cancer cells

作者：Wang Fei; Zhai Shumei; Liu Xiaojun; Li Liwen; Wu Shirley; Dou Q Ping; Yan Bing^*

来源：Cancer Letters, 2011, 300(1): 87-95.

DOI：10.1016/j.canlet.2010.09.010

• ALDH
• Dithiocarbamates
• Cancer
• Proteasome inhibitor
• Disulfiram

Dithiocarbamates are a class of sulfur-based metal-chelating compounds with various applications in medicine We reported previously that certain members of dithiocarbamates such as diethyldithiocarbamate disulfiram (DSF) and pyrrolidine dithiocarbamate (PDTC) were able to bind with tumor cellular copper to inhibit tumor growth through the inhibition of proteasome activity and induction of cancer cell apoptosis Since the DSF is an irreversible inhibitor of aldehyde dehydrogenase (ALDH) its ALDH-inhibitory activity might potentially affect its usefulness as an anti-cancer drug For the purpose of selecting potent anti-cancer compounds that are not ALDH inhibitors and mapping out preliminary structure-activity relationship trends for these novel compounds we synthesized a series of PDTC analogues and chose three novel compounds to study their ALDH-inhibitory activity proteasome-inhibitory activity as well as the cancer cell apoptosis-inducing activity The results showed that compared to DSF compound 9 has less ALDH inhibition activity and the in vitro results also proved the positive effects of 9-Cu in proteasome inhibition and

• 出版日期2011-1-1
• 单位山东大学