Abstract:
:Curcumin (diferuloylmethane) is a well-known agent with anti-inflammatory, antioxidant, and anticarcinogenic properties. In this study, we observed that curcumin inhibited the kinase activity of v-Src, which led to a decrease in tyrosyl substrate phosphorylation of Shc, cortactin, and FAK. Our in vitro kinase experiment revealed that the inhibitory effect of curcumin on Src could be direct. Consistent with the abrogation of Src activity was the reduction of Src-Tyr-416 phosphorylation, Src-mediated Shc-Tyr-317 phosphorylation, decreased ERK activation, and cell proliferation in v-Src transformed cells. Remarkably, curcumin not only exerted its negative effect on FAK via the disappearance of Src-mediated FAK phosphorylation, but also directly inhibited its enzymatic activity. Concurrent to reduced cortactin tyrosyl phosphorylation and FAK kinase activity was the abolishment of v-Src-mediated cell mobility. To our knowledge, this is the first report indicating that curcumin can retard cellular growth and migration via downregulation of Src and FAK kinase activity.
journal_name
Biochem Pharmacoljournal_title
Biochemical pharmacologyauthors
Leu TH,Su SL,Chuang YC,Maa MCdoi
10.1016/j.bcp.2003.08.017subject
Has Abstractpub_date
2003-12-15 00:00:00pages
2323-31issue
12eissn
0006-2952issn
1873-2968pii
S0006295203006579journal_volume
66pub_type
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