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Discovery of Two Highly Selective Structurally Orthogonal Chemical Probes for Activin Receptor-like Kinases 1 and 2

V. Němec, M. Remeš, P. Beňovský, MC. Böck, E. Šranková, JF. Wong, J. Cros, E. Williams, LH. Tse, D. Smil, D. Ensan, MB. Isaac, R. Al-Awar, R. Gomolková, VC. Ursachi, B. Fafílek, Z. Kahounová, R. Víchová, O. Vacek, BT. Berger, CI. Wells, CR....

. 2024 ; 67 (15) : 12632-12659. [pub] 20240718

Language English Country United States

Document type Journal Article

Persistent link   https://www.medvik.cz/link/bmc24019375

Activin receptor-like kinases 1-7 (ALK1-7) regulate a complex network of SMAD-independent as well as SMAD-dependent signaling pathways. One of the widely used inhibitors for functional investigations of these processes, in particular for bone morphogenetic protein (BMP) signaling, is LDN-193189. However, LDN-193189 has insufficient kinome-wide selectivity complicating its use in cellular target validation assays. Herein, we report the identification and comprehensive characterization of two chemically distinct highly selective inhibitors of ALK1 and ALK2, M4K2234 and MU1700, along with their negative controls. We show that both MU1700 and M4K2234 efficiently block the BMP pathway via selective in cellulo inhibition of ALK1/2 kinases and exhibit favorable in vivo profiles in mice. MU1700 is highly brain penetrant and shows remarkably high accumulation in the brain. These high-quality orthogonal chemical probes offer the selectivity required to become widely used tools for in vitro and in vivo investigation of BMP signaling.

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$a Discovery of Two Highly Selective Structurally Orthogonal Chemical Probes for Activin Receptor-like Kinases 1 and 2 / $c V. Němec, M. Remeš, P. Beňovský, MC. Böck, E. Šranková, JF. Wong, J. Cros, E. Williams, LH. Tse, D. Smil, D. Ensan, MB. Isaac, R. Al-Awar, R. Gomolková, VC. Ursachi, B. Fafílek, Z. Kahounová, R. Víchová, O. Vacek, BT. Berger, CI. Wells, CR. Corona, JD. Vasta, MB. Robers, P. Krejci, K. Souček, AN. Bullock, S. Knapp, K. Paruch
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