Abstract:
:Vesicular Glutamate Transporters (VGLUTs) allow the loading of presynapic glutamate vesicles and thus play a critical role in glutamatergic synaptic transmission. VGLUTs have proved to be involved in several major neuropathologies and directly correlated to clinical dementia in Alzheimer and Parkinson's disease. Accordingly VGLUT represent a key biological target or biomarker for neuropathology treatment or diagnostic. Yet, despite the pivotal role of VGLUTs, their pharmacology appears quite limited. Known competitive inhibitors are restricted to some dyes as Trypan Blue (TB) and glutamate mimics. This lack of pharmacological tools has heavily hampered VGLUT investigations. Here we report a rapid access to small molecules that combine benefits of TB and dicarboxylic quinolines (DCQs). Their ability to block vesicular glutamate uptake was evaluated. Several compounds displayed low micromolar inhibitory potency when size related compounds are thirty to forty times less potent (i.e. DCQ). We then confirmed the VGLUT selectivity by measuring the effect of the series on vesicular monoamine transport and on metabotropic glutamate receptor activity. These inhibitors are synthesized in only two steps and count among the best pharmacological tools for VGLUTs studies.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Favre-Besse FC,Poirel O,Bersot T,Kim-Grellier E,Daumas S,El Mestikawy S,Acher FC,Pietrancosta Ndoi
10.1016/j.ejmech.2014.03.056subject
Has Abstractpub_date
2014-05-06 00:00:00pages
236-47eissn
0223-5234issn
1768-3254pii
S0223-5234(14)00269-4journal_volume
78pub_type
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