Pharmacological inhibition of microsomal prostaglandin E synthase-1 suppresses epidermal growth factor receptor-mediated tumor growth and angiogenesis.
Pharmacological inhibition of microsomal prostaglandin E synthase-1 suppresses epidermal growth factor receptor-mediated tumor growth and angiogenesis.
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DOI:
10.1371/journal.pone.0040576
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Donnini S
中科院分区:
文献类型:
--
作者:
Finetti F;Terzuoli E;Bocci E;Coletta I;Polenzani L;Mangano G;Alisi MA;Cazzolla N;Giachetti A;Ziche M;Donnini S
Blockade of Prostaglandin (PG) E2 production via deletion of microsomal Prostaglandin E synthase-1 (mPGES-1) gene reduces tumor cell proliferation in vitro and in vivo on xenograft tumors. So far the therapeutic potential of the pharmacological inhibition of mPGES-1 has not been elucidated. PGE2 promotes epithelial tumor progression via multiple signaling pathways including the epidermal growth factor receptor (EGFR) signaling pathway. Here we evaluated the antitumor activity of AF3485, a compound of a novel family of human mPGES-1 inhibitors, in vitro and in vivo, in mice bearing human A431 xenografts overexpressing EGFR. Treatment of the human cell line A431 with interleukin-1beta (IL-1β) increased mPGES-1 expression, PGE2 production and induced EGFR phosphorylation, and vascular endothelial growth factor (VEGF) and fibroblast growth factor-2 (FGF-2) expression. AF3485 reduced PGE2 production, both in quiescent and in cells stimulated by IL-1β. AF3485 abolished IL-1β-induced activation of the EGFR, decreasing VEGF and FGF-2 expression, and tumor-mediated endothelial tube formation. In vivo, in A431 xenograft, AF3485, administered sub-chronically, decreased tumor growth, an effect related to inhibition of EGFR signalling, and to tumor microvessel rarefaction. In fact, we observed a decrease of EGFR phosphorylation, and VEGF and FGF-2 expression in tumours explanted from treated mice. Our work demonstrates that the pharmacological inhibition of mPGES-1 reduces squamous carcinoma growth by suppressing PGE2 mediated-EGFR signalling and by impairing tumor associated angiogenesis. These results underscore the potential of mPGES-1 inhibitors as agents capable of controlling tumor growth.
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影响因子:
29.4
作者:
Lu D;Han C;Wu T
通讯作者:
Wu T
DOI:
10.1158/1078-0432.ccr-09-0788
发表时间:
2010-03-01
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
Menter DG;Schilsky RL;DuBois RN
通讯作者:
DuBois RN
影响因子:
5.8
作者:
Bruno, Annalisa;Di Francesco, Luigia;Patrignani, Paola
通讯作者:
Patrignani, Paola
影响因子:
4.8
作者:
Buchanan, FG;Wang, DZ;DuBois, RN
通讯作者:
DuBois, RN
影响因子:
11.5
作者:
Golijanin, D;Tan, JY;Dannenberg, AJ
通讯作者:
Dannenberg, AJ