PMID- 25385044 OWN - NLM STAT- MEDLINE DCOM- 20150821 LR - 20141222 IS - 1791-2423 (Electronic) IS - 1019-6439 (Linking) VI - 46 IP - 2 DP - 2015 Feb TI - Oligomer procyanidins (F2) isolated from grape seeds inhibits tumor angiogenesis and cell invasion by targeting HIF-1alpha in vitro. PG - 708-20 LID - 10.3892/ijo.2014.2744 [doi] AB - Overexpression of hypoxia-inducible factor-1 (HIF-1) alpha, a transcription factor which immortalizes tumors by inducing expression of the genes involved in cell survival, migration and angiogenesis, is closely associated with poor prognosis, increased risk of metastasis and increased mortality. Oligomer procyanidins (F2), a natural fraction from grape seeds, has been demonstrated to have antioxidant and antitumor activities, however the antitumor effect of F2 targeting HIF-1alpha remains unknown. The present study showed that F2 markedly decreased HIF-1alpha and the expression of its target genes in cancer cells through inactivating the EGFR-PI3K-AKT-mTOR and MAPK-ERK1/2 pathways. Moreover, F2 suppressed vascular endothelial growth factor (VEGF) and matrix metalloproteinases (MMP)-2 expressions, followed by the inhibition of tumor angiogenesis and cell invasion in a HIF-1alpha-dependent manner. Collectively, these findings indicate that the antitumor effect of F2 is, at least in part, mediated by suppressing HIF-1alpha-dependent pathway, and suggest that F2 may be a potentially useful agent for treatment of human cancer. FAU - Zheng, Hong Li AU - Zheng HL AD - Department of Pharmacology, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. FAU - Yang, Jingyu AU - Yang J AD - Department of Pharmacology, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. FAU - Hou, Yue AU - Hou Y AD - Department of Pharmacology, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. FAU - Sun, Baoshan AU - Sun B AD - Department of Drug Analysis, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. FAU - Zhang, Qingchun AU - Zhang Q AD - Department of Pharmacology, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. FAU - Mou, Yanhua AU - Mou Y AD - Department of Pharmacology, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. FAU - Wand, Lihui AU - Wand L AD - Department of Pharmacology, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. FAU - Wu, Chunfu AU - Wu C AD - Department of Pharmacology, Shenyang Pharmaceutical University, Shenhe District, 110016 Shenyang, P.R. China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141110 PL - Greece TA - Int J Oncol JT - International journal of oncology JID - 9306042 RN - 0 (Antineoplastic Agents, Phytogenic) RN - 0 (Grape Seed Extract) RN - 0 (HIF1A protein, human) RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Neoplasm Proteins) RN - 0 (Proanthocyanidins) SB - IM MH - Antineoplastic Agents, Phytogenic/*administration & dosage MH - Astrocytoma/*drug therapy/genetics/pathology MH - Cell Hypoxia/drug effects MH - Cell Line, Tumor MH - Gene Expression Regulation, Neoplastic/drug effects MH - Grape Seed Extract/administration & dosage MH - Humans MH - Hypoxia-Inducible Factor 1, alpha Subunit/*biosynthesis/genetics MH - Neoplasm Invasiveness/genetics/pathology MH - Neoplasm Proteins/biosynthesis/drug effects MH - Neovascularization, Pathologic/*drug therapy/genetics/pathology MH - Proanthocyanidins/*administration & dosage MH - Signal Transduction/drug effects EDAT- 2014/11/12 06:00 MHDA- 2015/08/22 06:00 CRDT- 2014/11/12 06:00 PHST- 2014/08/06 00:00 [received] PHST- 2014/09/11 00:00 [accepted] PHST- 2014/11/12 06:00 [entrez] PHST- 2014/11/12 06:00 [pubmed] PHST- 2015/08/22 06:00 [medline] AID - 10.3892/ijo.2014.2744 [doi] PST - ppublish SO - Int J Oncol. 2015 Feb;46(2):708-20. doi: 10.3892/ijo.2014.2744. Epub 2014 Nov 10.