, Volume 17, Issue 10, pp 1120-1130
Date: 23 Jun 2012

Vinpocetine inhibits breast cancer cells growth in vitro and in vivo

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Vinpocetine is a clinically used drug for cerebrovascular disorders as well as age-related memory impairment. Of note, vinpocetine has been recently identified as a novel anti-inflammatory agent; however, its effects on cancer cells remain to be investigated. In the present study, we found that vinpocetine potently inhibited proliferation of multiple types of human breast cancer cells by arresting cell cycle at G0/G1 phase. It was also revealed that vinpocetine induced cell apoptosis via mitochondria-dependent pathway. Moreover, vinpocetine impaired the migration of the strongly metastatic cell MDA-MB-231. In xenograft model of human breast cancer in nude mice, both systemic and local administration of vinpocetine significantly suppressed the tumor growth without observed toxicity. Interestingly, vinpocetine markedly attenuated the activation of Akt and signal transducer and activator of transcription factor 3 (STAT3), but had no effects on MAP kinases pathways. Collectively, the data suggest that vinpocetine possesses significant yet previously unknown antitumor properties that may be utilized for the treatment of breast cancer.

Er-Wen Huang and Sheng-Jiang Xue contributed equally to this study.