Document Report Card
Basic Information
ID: ALA3774333
Journal: J Med Chem
Title: Identification of SNAIL1 Peptide-Based Irreversible Lysine-Specific Demethylase 1-Selective Inactivators.
Authors: Itoh Y, Aihara K, Mellini P, Tojo T, Ota Y, Tsumoto H, Solomon VR, Zhan P, Suzuki M, Ogasawara D, Shigenaga A, Inokuma T, Nakagawa H, Miyata N, Mizukami T, Otaka A, Suzuki T.
Abstract: Inhibition of lysine-specific demethylase 1 (LSD1), a flavin-dependent histone demethylase, has recently emerged as a new strategy for treating cancer and other diseases. LSD1 interacts physically with SNAIL1, a member of the SNAIL/SCRATCH family of transcription factors. This study describes the discovery of SNAIL1 peptide-based inactivators of LSD1. We designed and prepared SNAIL1 peptides bearing a propargyl amine, hydrazine, or phenylcyclopropane moiety. Among them, peptide 3, bearing hydrazine, displayed the most potent LSD1-inhibitory activity in enzyme assays. Kinetic study and mass spectrometric analysis indicated that peptide 3 is a mechanism-based LSD1 inhibitor. Furthermore, peptides 37 and 38, which consist of cell-membrane-permeable oligoarginine conjugated with peptide 3, induced a dose-dependent increase of dimethylated Lys4 of histone H3 in HeLa cells, suggesting that they are likely to exhibit LSD1-inhibitory activity intracellularly. In addition, peptide 37 decreased the viability of HeLa cells. We believe this new approach for targeting LSD1 provides a basis for development of potent selective inhibitors and biological probes for LSD1.
CiteXplore: 26700437