Keywords :
Arthritis, Rheumatoid/metabolism; Hela Cells; Humans; Isoquinolines/antagonists & inhibitors; MAP Kinase Kinase Kinases/drug effects/physiology; NF-kappa B/antagonists & inhibitors/physiology; Pyrazoles/antagonists & inhibitors; Recombinant Proteins; Signal Transduction/drug effects/physiology; Structure-Activity Relationship
Abstract :
[en] In this work, we aimed to build a 3D-model of NIK and to study the binding of pyrazolo[4,3-c]isoquinolines with a view to highlight the structural elements responsible for their inhibitory potency. However, in the course of this work, we unexpectedly found that the pyrazolo[4,3-c]isoquinolines initially reported as NIK inhibitors were neither inhibitors of this enzyme nor of the alternative NF-kappaB pathway, but were in fact inhibitors of another kinase, the TGF-beta activated kinase 1 (TAK1) which is involved in the classical NF-kappaB pathway.
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