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A novel copper complex of 3-benzoyl-alpha methyl benzene acetic acid with antitumor activity mediated via cyclooxygenase pathway.

Abstract：

:Pancreatic cancer (PC) is characterized as one of the deadliest malignancies and its treatment is a great challenge to clinical oncologists. Expression of COX-2 is detectable in 75% of PCs among which 50% showed overexpression, suggesting the importance of COX-2 enzyme and its metabolic product prostaglandin E2 (PGE(2)) in PC. Here the authors report the synthesis and biological activity of a novel COX-2 inhibitor, FPA-306, and its effects on PC cells with different levels of COX-2 expression. Using MTT assay, the authors found a significant growth inhibition of BxPC-3 cells treated by FPA-306 with an IC(50) of 10 micromol/L, which was lower than that of ketoprofen (IC(50) = 35.4 micromol/L) and celecoxib (IC(50) > 100 micromol/L). There was no such effect found in MIAPaCa cell line, which does not express COX-2. The authors also found dose dependent reduction in cell survival and induction of apoptosis by FPA-306 treatment in BxPC-3 cells but not in MIAPaCa cells. These results were correlated with apoptosis data and secreted PGE(2) levels. The molecular modeling of FPA-306 in the COX-2 active site showed that FPA-306 is potentially able to inhibit the activity of enzyme by blocking the active site, thereby resulting in decreased PGE(2) production. The authors also found a significant reduction of COX-2 at the mRNA and protein levels together with downregulation of NF-kappaB DNA binding activity and its downstream genes, Bcl-2 and survivin. These results suggest that FPA-306 is an effective and potent agent in inhibiting the growth of PC cells.

journal_name

Int J Cancer

journal_title

International journal of cancer

authors

Ahmed F,Adsule S,Ali AS,Banerjee S,Ali S,Kulkarni S,Padhye S,Sarkar FH

doi

10.1002/ijc.22383

subject

Has Abstract

pub_date

2007-02-15 00:00:00

pages

734-42

issue

4

eissn

0020-7136

issn

1097-0215

journal_volume

120

pub_type

杂志文章

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