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Gen Pharmacol. 1999 Mar;32(3):279-86.

Flavonoids and the inhibition of PKC and PI 3-kinase.

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  • 1Laboratoire des Xénobiotiques, INRA, Toulouse, France.


Flavonoids provide a large number of interesting natural compounds that are consumed daily and exhibit more or less potent and selective effects on some signaling enzymes as well as on the growth and proliferation of certain malignant cells in vitro. Among the identified signal transducers, phosphoinositide 3-kinase (PI 3-kinase) and protein kinase C (PKC) are now considered key players in many cellular responses including cell multiplication, apoptosis, and transformation. Despite their lack of strict specificity, some flavonoids provide valuable bases for the design of analogues that could be used to specifically block particular isoforms of PI 3-kinase or PKC and their downstream-dependent cellular responses.

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