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

ABSTRACT: 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.

SUBMITTER: Kaoud TS

PROVIDER: S-EPMC3445420 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature

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

Kaoud Tamer S TS Yan Chunli C Mitra Shreya S Tseng Chun-Chia CC Jose Jiney J Taliaferro Juliana M JM Tuohetahuntila Maidina M Devkota Ashwini A Sammons Rachel R Park Jihyun J Park Heekwang H Shi Yue Y Hong Jiyong J Ren Pengyu P Dalby Kevin N KN

ACS medicinal chemistry letters 20120801 9

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 compou ...[more]

PMID: 23002419

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Dataset Information

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

Publications

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

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