Journal
BLOOD COAGULATION & FIBRINOLYSIS
Volume 21, Issue 6, Pages 528-533Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MBC.0b013e32833a9b61
Keywords
grape seed extract; nuclear factor kappa B; proanthocyanidin; prostate cancer cell migration; urokinase plasminogen activator
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Tumor invasion and metastasis present major obstacles to successful control of androgen-independent prostate cancer. Cell migration is a fundamental aspect of cancer cell metastasis. Urokinase plasminogen activator (uPA) system is implicated in cell migration and cancer metastasis and has potential to be developed as therapeutic target. In recent years, efficacy of dietary nutrients in preventing and curing cancer has gained increasing attention. One such promising candidate is proanthocyanidin-rich grape seed extract (GSE). We investigated the efficacy of GSE in regulating uPA expression and cell migration using highly metastatic androgen-independent PC3 prostate cancer cells as a model. GSE down-regulated uPA as a function of concentration. Additional studies showed that GSE inhibited DNA-binding activity of the transcription factor nuclear factor kappa B (NF kappa B), which in turn decreased NF kappa B-dependent uPA transcription. Invasion assays revealed the inhibitory effect of GSE on PC3 cell migration. These in-vitro experiments demonstrate the therapeutic property of GSE as an antimetastatic agent by targeting uPA. Blood Coagul Fibrinolysis 21:528-533 (C) 2010 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.
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