Developing DYRK inhibitors derived from the meridianins as a means of increasing levels of NFAT in the nucleus.

Autor: Shaw SJ; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA. Electronic address: sshaw@rigel.com., Goff DA; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA., Lin N; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA., Singh R; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA., Li W; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA., McLaughlin J; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA., Baltgalvis KA; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA., Payan DG; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA., Kinsella TM; Rigel Pharmaceuticals, Inc., 1180, Veterans Boulevard, South San Francisco, CA 94080, USA.
Jazyk: angličtina
Zdroj: Bioorganic & medicinal chemistry letters [Bioorg Med Chem Lett] 2017 Jun 01; Vol. 27 (11), pp. 2617-2621. Date of Electronic Publication: 2017 Mar 18.
DOI: 10.1016/j.bmcl.2017.03.037
Abstrakt: A structure-activity relationship has been developed around the meridianin scaffold for inhibition of Dyrk1a. The compounds have been focussed on the inhibition of kinase Dyrk1a, as a means to retain the transcription factor NFAT in the nucleus. NFAT is responsible for up-regulation of genes responsible for the induction of a slow, oxidative skeletal muscle phenotype, which may be an effective treatment for diseases where exercise capacity is compromised. The SAR showed that while strong Dyrk1a binding was possible with the meridianin scaffold the compounds have no effect on NFAT localisation, however, by moving from the indole to a 6-azaindole scaffold both potent Dyrk1a binding and increased NFAT residence time in the nucleus were obtained - properties not observed with the reported Dyrk1a inhibitors. One compound was shown to be effective in an ex vivo muscle fiber assay. The increased biological activity is thought to arise from the added interaction between the azaindole nitrogen and the lysine residue in the back pocket.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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