Imperial College London
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Professor Matthew J. Fuchter

Faculty of Natural Sciences, Department of Chemistry

Professor of Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 5815m.fuchter

 
 
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Location

 

110DMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sundriyal:2017:10.1039/C7MD00052A,
author = {Sundriyal, S and Chen, P and Lubin, A and Lueg, G and Lu, F and White, AJP and Malmquist, N and Vedadi, M and Scherf, A and Fuchter, MJ},
doi = {10.1039/C7MD00052A},
journal = {MedChemComm},
pages = {1069--1092},
title = {Identification of diaminoquinazoline histone lysine methyltransferase structure activity relationships that allow for segregation of human G9a inhibition and anti-Plasmodium activity},
url = {http://dx.doi.org/10.1039/C7MD00052A},
volume = {8},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Plasmodium falciparum HKMTs (PfHKMTs) play a key role in controlling Plasmodium gene expression and represent exciting new anti-malarial epigenetic targets. Using an inhibitor series derived from the diaminoquinazoline HKMT inhibitory chemotype, we have previously identified compounds with highly promising antimalarial activity, including irreversible asexual cycle blood stage-independent cytotoxic activity at nM concentrations, oral efficacy in in vivo models of disease, and the unprecedented ability to reactivate dormant liver stage parasites (hypnozoites). However, future development of this series will need to address host versus parasite selectivity, where inhibitory activity against human G9a is removed from the lead compounds, while maintaining potent anti-Plasmodium activity. Herein, we report an extensive study of the SAR of this series against both G9a and P. falciparum. We have identified key SAR features which demonstrate that high parasite vs. G9a selectivity can be achieved by selecting appropriate substituents at position 2, 4 and 7 of the quinazoline ring. We have also, in turn, discovered that potent G9a inhibitors can be identified by employing a 6-carbon ‘Nle mimic’ at position 7. Together, this data suggests that while broadly similar, the G9a and potential PfHKMT target(s) binding pockets and/or binding modes of the diaminoquinazoline analogues exhibit clear and exploitable differences. Based on this, we believe this scaffold to have clear potential for development into a novel anti-malarial therapeutic.
AU  - Sundriyal,S
AU  - Chen,P
AU  - Lubin,A
AU  - Lueg,G
AU  - Lu,F
AU  - White,AJP
AU  - Malmquist,N
AU  - Vedadi,M
AU  - Scherf,A
AU  - Fuchter,MJ
DO  - 10.1039/C7MD00052A
EP  - 1092
PY  - 2017///
SN  - 2040-2511
SP  - 1069
TI  - Identification of diaminoquinazoline histone lysine methyltransferase structure activity relationships that allow for segregation of human G9a inhibition and anti-Plasmodium activity
T2  - MedChemComm
UR  - http://dx.doi.org/10.1039/C7MD00052A
UR  - http://hdl.handle.net/10044/1/45567
VL  - 8
ER  -
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