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Detailed Exploration around 4-Aminoquinolines Chemical Space to Navigate the Lysine Methyltransferase G9a and DNA Methyltransferase Biological Spaces.

Abstract：

:Epigenetic regulators that exhibit aberrant enzymatic activities or expression profiles are potential therapeutic targets for cancers. Specifically, enzymes responsible for methylation at histone-3 lysine-9 (like G9a) and aberrant DNA hypermethylation (DNMTs) have been implicated in a number of cancers. Recently, molecules bearing a 4-aminoquinoline scaffold were reported as dual inhibitors of these targets and showed a significant in vivo efficacy in animal models of hematological malignancies. Here, we report a detailed exploration around three growing vectors born by this chemotype. Exploring this chemical space led to the identification of features to navigate G9a and DNMT1 biological spaces: not only their corresponding exclusive areas, selective compounds, but also common spaces. Thus, we identified from selective G9a and first-in-class DNMT1 inhibitors, >1 log unit between their IC50 values, with IC50 < 25 nM (e.g., 43 and 26, respectively) to equipotent inhibitors with IC50 < 50 nM for both targets (e.g., 13). Their ADME/Tox profiling and antiproliferative efficacies, versus some cancer cell lines, are also reported.

journal_name

J Med Chem

journal_title

Journal of medicinal chemistry

authors

Rabal O,Sánchez-Arias JA,San José-Enériz E,Agirre X,de Miguel I,Garate L,Miranda E,Sáez E,Roa S,Martínez-Climent JA,Liu Y,Wu W,Xu M,Prosper F,Oyarzabal J

doi

10.1021/acs.jmedchem.7b01925

subject

Has Abstract

pub_date

2018-08-09 00:00:00

pages

6546-6573

issue

15

eissn

0022-2623

issn

1520-4804

journal_volume

61

pub_type

杂志文章

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