L. Korutla et R. Kumar, INHIBITORY EFFECT OF CURCUMIN ON EPIDERMAL GROWTH-FACTOR RECEPTOR KINASE-ACTIVITY IN A431 CELLS, Biochimica et biophysica acta. Molecular cell research, 1224(3), 1994, pp. 597-600
We explored the mechanism of antigrowth action of Curcumin by investig
ating its effect on epidermal growth factor (EGF) receptor intrinsic k
inase activity in the human epidermoid carcinoma A431 cells. The short
-term treatment of cells with Curcumin inhibited EGF receptor intrinsi
c kinase activity up to 90% in a dose- and time-dependent manner, and
also inhibited EGF-induced tyrosine phosphorylation of EGF receptors.
The observed early effects of Curcumin were mediated via a cellular me
chanism(s), and preceded the period when inhibition of cell growth occ
urred.