PMID: 28005357

Authors:

Castanedo GM, Blaquiere N, Beresini M, Bravo B, Brightbill H, Chen J, Cui HF, Eigenbrot C, Everett C, Feng J, Godemann R, Gogol E, Hymowitz S, Johnson A, Kayagaki N, Kohli PB, Knuppel K, Kraemer J, Kruger S, Loke P, McEwan P, Montalbetti C, Roberts DA, Smith M, Steinbacher S, Sujatha-Bhaskar S, Takahashi R, Wang X, Wu LC, Zhang Y, Staben ST

Title:

Structure-Based Design of Tricyclic NF-kappaB Inducing Kinase (NIK) Inhibitors That Have High Selectivity over Phosphoinositide-3-kinase (PI3K).

Journal:

J Med Chem. 2017 Jan 12. doi: 10.1021/acs.jmedchem.6b01363.

Abstract:

We report here structure-guided optimization of a novel series of NF-kappaB inducing kinase (NIK) inhibitors. Starting from a modestly potent, low molecular weight lead, activity was improved by designing a type 11/2 binding mode that accessed a back pocket past the methionine-471 gatekeeper. Divergent binding modes in NIK and PI3K were exploited to dampen PI3K inhibition while maintaining NIK inhibition within these series. Potent compounds were discovered that selectively inhibit the nuclear translocation of NF-kappaB2 (p52/REL-B) but not canonical NF-kappaB1 (REL-A/p50).