Journal of Medicinal Chemistry p. 1673 - 1692 (2017)
Update date:2022-08-17
Topics:
Sartori, Luca
Mercurio, Ciro
Amigoni, Federica
Cappa, Anna
Fagá, Giovanni
Fattori, Raimondo
Legnaghi, Elena
Ciossani, Giuseppe
Mattevi, Andrea
Meroni, Giuseppe
Moretti, Loris
Cecatiello, Valentina
Pasqualato, Sebastiano
Romussi, Alessia
Thaler, Florian
Trifiró, Paolo
Villa, Manuela
Vultaggio, Stefania
Botrugno, Oronza A.
Dessanti, Paola
Minucci, Saverio
Zagarrí, Elisa
Carettoni, Daniele
Iuzzolino, Lucia
Varasi, Mario
Vianello, Paola
Lysine specific demethylase 1 KDM1A (LSD1) regulates histone methylation and it is increasingly recognized as a potential therapeutic target in oncology. We report on a high-throughput screening campaign performed on KDM1A/CoREST, using a time-resolved fluorescence resonance energy transfer (TR-FRET) technology, to identify reversible inhibitors. The screening led to 115 hits for which we determined biochemical IC50, thus identifying four chemical series. After data analysis, we have prioritized the chemical series of N-phenyl-4H-thieno[3, 2-b]pyrrole-5-carboxamide for which we obtained X-ray structures of the most potent hit (compound 19, IC50 = 2.9 μM) in complex with the enzyme. Initial expansion of this chemical class, both modifying core structure and decorating benzamide moiety, was directed toward the definition of the moieties responsible for the interaction with the enzyme. Preliminary optimization led to compound 90, which inhibited the enzyme with a submicromolar IC50 (0.162 μM), capable of inhibiting the target in cells.
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