Leucettines, a Class of Potent Inhibitors of cdc2-Like Kinases and Dual Specificity, Tyrosine Phosphorylation Regulated Kinases Derived from the Marine Sponge Leucettamine B: Modulation of Alternative Pre-RNA Splicing

Debdab, Mansour, Carreaux, François, Renault, Steven, Soundararajan, Meera, Fedorov, Oleg, Filippakopoulos, Panagis, Lozach, Olivier, Babault, Lucie, Tahtouh, Tania, Baratte, Blandine, Ogawa, Yasushi, Hagiwara, Masatoshi, Eisenreich, Andreas, Rauch, Ursula, Knapp, Stefan, Meijer, Laurent and Bazureau, Jean-Pierre (2011) Leucettines, a Class of Potent Inhibitors of cdc2-Like Kinases and Dual Specificity, Tyrosine Phosphorylation Regulated Kinases Derived from the Marine Sponge Leucettamine B: Modulation of Alternative Pre-RNA Splicing. Journal of Medicinal Chemistry, 54 (12). pp. 4172-4186. ISSN 0022-2623

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Abstract

We here report on the synthesis, optimization, and biological characterization of leucettines, a family of kinase inhibitors derived from the marine sponge leucettamine B. Stepwise synthesis of analogues starting from the natural structure, guided by activity testing on eight purified kinases, led to highly potent inhibitors of CLKs and DYRKs, two families of kinases involved in alternative pre-mRNA splicing and Alzheimer's disease/Down syndrome. Leucettine L41 was cocrystallized with CLK3. It interacts with key residues located within the ATP-binding pocket of the kinase. Leucettine L41 inhibits the phosphorylation of serine/arginine-rich proteins (SRp), a family of proteins regulating pre-RNA splicing. Indeed leucettine L41 was demonstrated to modulate alternative pre-mRNA splicing, in a cell-based reporting system. Leucettines should be further explored as pharmacological tools to study and modulate pre-RNA splicing. Leucettines may also be investigated as potential therapeutic drugs in Alzheimer's disease (AD) and in diseases involving abnormal pre-mRNA splicing.

Item Type:	Article
Uncontrolled Keywords:	cyclin-dependant kinases, human endothelial-cells, DNA topoisomerase-I
Subjects:	C900 Others in Biological Sciences
Department:	Faculties > Health and Life Sciences > Applied Sciences
Depositing User:	Linda Barlow
Date Deposited:	27 Mar 2012 11:49
Last Modified:	12 Oct 2019 18:26
URI:	http://nrl.northumbria.ac.uk/id/eprint/5881

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