Abstract

Necroptosis is a type of programmed cell death that usually occurs under apoptosis-deficient conditions. Receptor-interacting protein kinase-3 (RIP3, or RIPK3) is a central player in necroptosis, and its kinase activity is essential for downstream necroptotic signaling events. Since RIP3 kinase activity has been associated with various diseases, the development of specific RIP3 inhibitors is an attractive strategy for therapeutic application. In this study, we identified a potent RIP3 inhibitor, HS-1371, by the extensive screening of chemical libraries focused on kinases. HS-1371 directly binds to RIP3 in an ATP-competitive and time-independent manner, providing a mechanism of action. Moreover, the compound inhibited TNF-induced necroptosis but did not inhibit TNF-induced apoptosis, indicating that this novel inhibitor has a specific inhibitory effect on RIP3-mediated necroptosis via the suppression of RIP3 kinase activity. Our results suggest that HS-1371 could serve as a potential preventive or therapeutic agent for diseases involving RIP3 hyperactivation.

Details

Title
HS-1371, a novel kinase inhibitor of RIP3-mediated necroptosis
Author
Han-Hee, Park 1 ; Park, Se-Yeon 1 ; Mah, Shinmee 2 ; Jung-Hee, Park 3 ; Soon-Sun, Hong 3 ; Hong, Sungwoo 2 ; You-Sun, Kim 1 

 Department of Biochemistry, Ajou University School of Medicine, Suwon, Korea; Department of Biomedical Sciences, Graduate School, Suwon, Korea 
 Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Korea; Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea 
 Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Korea 
Pages
1-15
Publication year
2018
Publication date
Sep 2018
Publisher
Springer Nature B.V.
ISSN
12263613
e-ISSN
20926413
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2110232436
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.