Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 58, Issue 15, Pages 5950-5966Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.5b00570
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Funding
- Center for Development of Original Drugs from the Technology Agency of the Czech Republic [TE01020028]
- Grant Agency of the Czech Republic [303/12/1464]
- BIOCEV [CZ.1.05/1.1.00/02.0109]
- Biotechnology and Biomedicine Centre of the Academy of Sciences
- Charles University in Vestec
- European Regional Development Fund
- [RVO 67985823]
- [RVO 61388963]
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N-Methyl-u-aspartate receptors (NMDARs) are glutamate-gated ion channels that play a crucial role in excitatory synaptic transmission. However, the overactivation of NMDARs can lead to excitotoxic cell damage/death, and as such, they play a role in numerous neuropathological conditions. The activity of NMDARs is known to be influenced by a wide variety of allosteric modulators, including neurosteroids, which in turn makes them promising therapeutic targets. In this study, we describe a new class of neurosteroid analogues which possess structural modifications in the steroid 1)-ring region. These analogues were tested on recombinant GluN1/GluN2B receptors to evaluate the structure activity relationship. Our results demonstrate that there is a strong correlation between this new structural feature and the in vitro activity, as all tested compounds were evaluated as more potent inhibitors of NMDA-induced currents (IC50 values varying from 90 nM to.5.4 mu M) than the known endogeneous neurosteroid pregnanolone sulfate (IC50 = 24.6 mu M).
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