Evidence map›Paper›PMID 24050755›Full record

ArticleJournal of medicinal chemistry2013

Exploration of allosteric agonism structure-activity relationships within an acetylene series of metabotropic glutamate receptor 5 (mGlu5) positive allosteric modulators (PAMs): discovery of 5-((3-fluorophenyl)ethynyl)-N-(3-methyloxetan-3-yl)picolinamide (ML254).

Mark Turlington, Meredith J Noetzel, Aspen Chun, Ya Zhou, Rocco D Gogliotti, Elizabeth D Nguyen, Karen J Gregory, Paige N Vinson, Jerri M Rook, Kiran K Gogi and 9 more

Abstract read
In one paragraph

Article in Journal of medicinal chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors.

Mark TurlingtonDepartment of Pharmacology, ‡Vanderbilt Center for Neuroscience Drug Discovery, ¶Center for Structural Biology, and #Vanderbilt Institute for Chemical Biology, Vanderbilt University Medical Center , Nashville, Tennessee 37232, United States.
Meredith J Noetzel
Aspen Chun
Ya Zhou
Rocco D Gogliotti
Elizabeth D Nguyen
Karen J Gregory
Paige N Vinson
Jerri M Rook
Kiran K Gogi
Zixiu Xiang
Thomas M Bridges
J Scott Daniels
Carrie Jones
Colleen M Niswender
Jens Meiler
P Jeffrey Conn
Craig W Lindsley
Shaun R Stauffer

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007347 · NIGMS · VANDERBILT UNIVERSITY · PI WILLIAMS, CHRISTOPHER S. · 1985 to 2023
$26.3M
The Vanderbilt Specialized Chemistry Center for Accelerated Probe DevelopmentU54MH084659 · NIMH · VANDERBILT UNIVERSITY · PI MEILER, JENS · 2008 to 2013
$24.1M
REGULATION OF SIGNALING BY MGLUR5R01MH062646 · NIMH · VANDERBILT UNIVERSITY · PI P Jeffrey Conn, COLLEEN M NISWENDER · 2001 to 2026
$10.9M
Program in NeurogenomicsT32MH065215 · NIMH · VANDERBILT UNIVERSITY · PI ROGER J COLBRAN · 2002 to 2026
$6.4M
FUNCTIONS OF METABOTROPIC GLUTAMATE RECEPTOR SUBTYPESR01NS031373 · NINDS · VANDERBILT UNIVERSITY · PI CONN, P JEFFREY · 1993 to 2025
$6.2M
Functions of Metabotropic Glutamate Receptor SubtypesR37NS031373 · NINDS · VANDERBILT UNIVERSITY · PI CONN, P JEFFREY · 2014 to 2020
$3.5M
NIGMS NIH HHS T32 GM007347NIGMS NIH HHS T32 GM07347NIMH NIH HHS MH062646NIMH NIH HHS R01 MH062646NIMH NIH HHS T32 MH065215NIMH NIH HHS U54 MH084659NIMH NIH HHS U54MH084659NINDS NIH HHS NS031373NINDS NIH HHS R01 NS031373NINDS NIH HHS R37 NS031373
6 · The paper itself

Abstract

Positive allosteric modulators (PAMs) of metabotropic glutamate receptor 5 (mGlu5) represent a promising therapeutic strategy for the treatment of schizophrenia. Both allosteric agonism and high glutamate fold-shift have been implicated in the neurotoxic profile of some mGlu5 PAMs; however, these hypotheses remain to be adequately addressed. To develop tool compounds to probe these hypotheses, the structure-activity relationship of allosteric agonism was examined within an acetylenic series of mGlu5 PAMs exhibiting allosteric agonism in addition to positive allosteric modulation (ago-PAMs). PAM 38t, a low glutamate fold-shift allosteric ligand (maximum fold-shift ~ 3.0), was selected as a potent PAM with no agonism in the in vitro system used for compound characterization and in two native electrophysiological systems using rat hippocampal slices. PAM 38t (ML254) will be useful to probe the relative contribution of cooperativity and allosteric agonism to the adverse effect liability and neurotoxicity associated with this class of mGlu5 PAMs.

Indexed as

AcetyleneAllosteric RegulationAmidesAnimalsBinding, CompetitiveCell MembraneDrug DiscoveryExcitatory Postsynaptic PotentialsHEK293 CellsHippocampusHumansMaleModels, ChemicalModels, MolecularMolecular StructurePicolinic Acids5-((3-fluorophenyl)ethynyl)-N-(3-methyloxetan-3-yl)picolinamideAcetyleneAmidespicolinamidePicolinic AcidsReceptor, Metabotropic Glutamate 5

Identifiers

PMID24050755
PMCPMC3908770

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.