Preprint Article Version 1 This version is not peer-reviewed

3D-QSAR, Molecular Docking, and Molecular Dynamics Simulation Study of Thieno[3,2-b]Pyrrole-5- Carboxamide Derivatives as LSD1 Inhibitors

Version 1 : Received: 20 August 2019 / Approved: 21 August 2019 / Online: 21 August 2019 (09:54:43 CEST)

How to cite: Huang, M.; Xu, Y.; He, Z.; Yang, M.; Liu, H.; Lu, X. 3D-QSAR, Molecular Docking, and Molecular Dynamics Simulation Study of Thieno[3,2-b]Pyrrole-5- Carboxamide Derivatives as LSD1 Inhibitors. Preprints 2019, 2019080223 (doi: 10.20944/preprints201908.0223.v1). Huang, M.; Xu, Y.; He, Z.; Yang, M.; Liu, H.; Lu, X. 3D-QSAR, Molecular Docking, and Molecular Dynamics Simulation Study of Thieno[3,2-b]Pyrrole-5- Carboxamide Derivatives as LSD1 Inhibitors. Preprints 2019, 2019080223 (doi: 10.20944/preprints201908.0223.v1).

Abstract

Histone Lysine Specific Demethylase 1 (LSD1) is overexpressed in many cancers and become a new target for anticancer drugs. In recent years, the small molecule inhibitors with various structures targeting LSD1 have been reported. Here we report the binding interaction modes of a series of thieno[3,2-b]pyrrole-5-carboxamides LSD1 inhibitors using molecular docking, three dimensional quantitative structure-activity relationship (3D-QSAR). Comparative molecular field analysis (CoMFA q2=0.783, r2=0.944, r2pred=0.851) and Comparative molecular similarity indices analysis (CoMSIA q2=0.728, r2=0.982, r2pred=0.814) were used to establish 3D-QSAR models, which had good verification and prediction capabilities. Based on the contour maps and the information of molecular docking, 8 novel small molecules were designed in silico, among which compounds D4, D5 and D8 with high predictive activity were subjected to further molecular dynamics simulations (MD), and their possible binding modes were explored. It was found that Asn535 plays a crucial role in stabilizing the inhibitors. Furthermore, the ADME and bioavailability prediction for D4, D5 and D8 were carried out. The results would provide valuable guidance for designing new reversible LSD1 inhibitors in the future.

Subject Areas

LSD1; molecular inhibitors; thieno[3,2-b]pyrrole-5-carboxamide derivatives; Molecular docking ;3D-QSAR; Molecular dynamics simulations

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