From in Silico Discovery to intra-Cellular Activity: Targeting JNK-Protein Interactions with Small Molecules.

Published

Journal Article

The JNK-JIP1 interaction represents an attractive target for the selective inhibition of JNK-mediated signaling. We report a virtual screening (VS) workflow, based on a combination of three-dimensional shape and electrostatic similarity to discover novel scaffolds for the development of non-ATP competitive inhibitors of JNK targeting the JNK-JIP interaction. Of 352 (0.13%) compounds selected from the NCI diversity set more than 22% registered as hits in a biochemical kinase assay. Several compounds discovered to inhibit JNK activity under standard kinase assay conditions also impeded JNK activity in HEK293 cells. These studies led to the discovery that the lignan (-)-zuonin A inhibits JNK-protein interactions with a selectivity of 100-fold over ERK2 and p38 MAPKα. These results demonstrate the utility of a virtual screening protocol to identify novel scaffolds for highly selective, cell-permeable inhibitors of JNK-protein interactions.

Full Text

Duke Authors

Cited Authors

  • Kaoud, TS; Yan, C; Mitra, S; Tseng, C-C; Jose, J; Taliaferro, JM; Tuohetahuntila, M; Devkota, A; Sammons, R; Park, J; Park, H; Shi, Y; Hong, J; Ren, P; Dalby, KN

Published Date

  • August 2012

Published In

Volume / Issue

  • 3 / 9

Start / End Page

  • 721 - 725

PubMed ID

  • 23002419

Pubmed Central ID

  • 23002419

Electronic International Standard Serial Number (EISSN)

  • 1948-5875

International Standard Serial Number (ISSN)

  • 1948-5875

Digital Object Identifier (DOI)

  • 10.1021/ml300129b

Language

  • eng