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In silico Design, Synthesis, and Screening of Novel Deoxyhypusine Synthase Inhibitors Targeting HIV‐1 Replication
Author(s) -
Schroeder Marcus,
Kolodzik Adrian,
Pfaff Katharina,
Priyadarshini Poornima,
Krepstakies Marcel,
Hauber Joachim,
Rarey Matthias,
Meier Chris
Publication year - 2014
Publication title -
chemmedchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.817
H-Index - 100
eISSN - 1860-7187
pISSN - 1860-7179
DOI - 10.1002/cmdc.201300481
Subject(s) - in silico , biology , active site , enzyme , biochemistry , atp synthase , drug discovery , gene
The human enzyme deoxyhypusine synthase (DHS) is an important host cell factor that participates in the post‐translational hypusine modification of eukaryotic initiation factor 5A (eIF‐5A). Hypusine‐modified eIF‐5A plays a role in a number of diseases, including HIV infection/AIDS. Thus, DHS represents a novel and attractive drug target. So far, four crystal structures are available, and various substances have been tested for inhibition of human DHS. Among these inhibitors, N ‐1‐guanyl‐1,7‐diaminoheptane (GC7) has been co‐crystallized in the active site of DHS. However, despite its potency, GC7 is not selective enough to be used in drug applications. Therefore, new compounds that target DHS are needed. Herein we report the in silico design, chemical synthesis, and biological evaluation of new DHS inhibitors. One of these inhibitors showed dose‐dependent inhibition of DHS in vitro, as well as suppression of HIV replication in cell cultures. Furthermore, the compound exhibited no cytotoxic effects at active concentrations. Thus, this designed compound demonstrated proof of principle and represents a promising starting point for the development of new drug candidates to specifically interfere with DHS activity.