國家衛生研究院 NHRI:Item 3990099045/11990

NHRI > National Institute of Cancer Research > Kwang-Yu Chang > Conference Papers/Meeting Abstract > Item 3990099045/11990

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/11990

Title:	Oleic acid promotes head and neck squamous cell carcinoma anoikis resistance and metastasis via ANGPTL4/fibronectin pathway
Authors:	Shen, CJ;Chan, SH;Lee, CT;Huang, WC;Tsai, JP;Chang, KY;Chang, WC;Chen, BK
Contributors:	National Institute of Cancer Research
Abstract:	Obese patients have higher levels of free fatty acids (FFAs) in their plasma and a higher risk of cancer than their non-obese counterparts. However, the mechanisms involved in the regulation of cancer metastasis by FFAs remain unclear. In this study, we found that oleic acid (OA) induced angiopoietin-like 4 (ANGPTL4) protein expression and secretion and conferred anoikis resistance to head and neck squamous cell carcinomas (HNSCCs). The autocrine production of OA-induced ANGPTL4 further promoted HNSCC migration and invasion. In addition, the expression of peroxisome proliferator-activated receptor (PPAR) was essential for the OA-induced ANGPTL4 expression and invasion. The levels of OA-induced epithelial-mesenchymal transition markers, such as vimentin, MMP-9, and fibronectin and its downstream effectors Rac1/Cdc42, were significantly reduced in ANGPTL4-depleted cells. Knocking down fibronectin not only inhibited the expression of MMP-9 but also repressed OA- and recombinant ANGPTL4-induced HNSCC invasion. On the other hand, ANGPTL4 siRNA inhibited OA-induced MMP-9 expression, which was reversed in fibronectin-overexpressing cells. Furthermore, the depletion of ANGPTL4 impeded the OA-primed metastatic seeding of tumor cells in the lungs. These results demonstrate that OA enhances HNSCC metastasis through the ANGPTL4/fibronectin/Rac1/Cdc42 and ANGPTL4/fibronectin/MMP-9 signaling axes. The inhibition of ANGPTL4 could be a potential strategy for the treatment of FFA-mediated HNSCC metastasis.
Date:	2018-07
Relation:	Cancer Research. 2018 Jul;78(13, Suppl.):Meeting Abstract 85.
Link to:	http://dx.doi.org/10.1158/1538-7445.Am2018-85
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0008-5472&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000468818901160
Appears in Collections:	[Kwang-Yu Chang] Conference Papers/Meeting Abstract

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