Discovery of small molecules targeting the synergy of cardiac transcription factors GATA4 and NKX2-5
Välimäki, Mika J.; Tölli, Marja A.; Kinnunen, Sini M.; Aro, Jani; Serpi, Raisa; Pohjolainen, Lotta; Talman, Virpi; Poso, Antti; Ruskoaho, Heikki J. (2017-08-31)
Mika J. Välimäki, Marja A. Tölli, Sini M. Kinnunen, Jani Aro, Raisa Serpi, Lotta Pohjolainen, Virpi Talman, Antti Poso, and Heikki J. Ruskoaho, Journal of Medicinal Chemistry 2017 60 (18), 7781-7798 DOI: 10.1021/acs.jmedchem.7b00816
© 2017 American Chemical Society. This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see https://doi.org/10.1021/acs.jmedchem.7b00816.
https://rightsstatements.org/vocab/InC/1.0/
https://urn.fi/URN:NBN:fi-fe2019071923143
Tiivistelmä
Abstract
Transcription factors are pivotal regulators of gene transcription, and many diseases are associated with the deregulation of transcriptional networks. In the heart, the transcription factors GATA4 and NKX2-5 are required for cardiogenesis. GATA4 and NKX2-5 interact physically, and the activation of GATA4, in cooperation with NKX2-5, is essential for stretch-induced cardiomyocyte hypertrophy. Here, we report the identification of four small molecule families that either inhibit or enhance the GATA4–NKX2-5 transcriptional synergy. A fragment-based screening, reporter gene assay, and pharmacophore search were utilized for the small molecule screening, identification, and optimization. The compounds modulated the hypertrophic agonist-induced cardiac gene expression. The most potent hit compound, N-[4-(diethylamino)phenyl]-5-methyl-3-phenylisoxazole-4-carboxamide (3, IC₅₀ = 3 μM), exhibited no activity on the protein kinases involved in the regulation of GATA4 phosphorylation. The identified and chemically and biologically characterized active compound, and its derivatives may provide a novel class of small molecules for modulating heart regeneration.
Kokoelmat
- Avoin saatavuus [32041]