Evidence map›Paper›PMID 23237839›Full record

ArticleBioorganic & medicinal chemistry letters2013

Isatin replacements applied to the highly selective, muscarinic M1 PAM ML137: continued optimization of an MLPCN probe molecule.

Bruce J Melancon, Michael S Poslusney, Patrick R Gentry, James C Tarr, Douglas J Sheffler, Margrith E Mattmann, Thomas M Bridges, Thomas J Utley, J Scott Daniels, Colleen M Niswender and 3 more

Open access · greenAbstract read
In one paragraph

Article in Bioorganic & medicinal chemistry letters, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 25% of its field
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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Discovery of VU0467319: an MACS chemical neuroscience · 2025
    Article
  2. Review
  3. Structure-Activity Relationships of Pan-GαACS chemical neuroscience · 2018
    Article
  4. Review
  5. Diverse Effects on MACS chemical neuroscience · 2017
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Discovery of ML326: The first sub-micromolar, selective M5 PAM.Bioorganic & medicinal chemistry letters · 2013
    Article
  13. Article
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

13 authors at 1 institution in 1 country.

Bruce J MelanconDepartment of Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
Michael S Poslusney
Patrick R Gentry
James C Tarr
Douglas J Sheffler
Margrith E Mattmann
Thomas M Bridges
Thomas J Utley
J Scott Daniels
Colleen M Niswender
P Jeffrey Conn
Craig W Lindsley
Michael R Wood
Vanderbilt University Medical Center · US

Funding

The Vanderbilt Specialized Chemistry Center for Accelerated Probe DevelopmentU54MH084659 · NIMH · VANDERBILT UNIVERSITY · PI MEILER, JENS · 2008 to 2013
$24.1M
Vanderbilt NCDDDG for Discovery of Novel Treatments for SchizophreniaU01MH087965 · NIMH · VANDERBILT UNIVERSITY · PI CONN, P JEFFREY · 2010 to 2014
$9.3M
Muscarinic receptor activators as novel antipsychotic agentsR01MH073676 · NIMH · VANDERBILT UNIVERSITY · PI Jerri Michelle Rook · 2006 to 2026
$9.3M
Program in NeurogenomicsT32MH065215 · NIMH · VANDERBILT UNIVERSITY · PI ROGER J COLBRAN · 2002 to 2026
$6.4M
Selective M1 mAChR allosteric modulators for the treatment of schizophreniaR01MH082867 · NIMH · VANDERBILT UNIVERSITY · PI LINDSLEY, CRAIG · 2008 to 2017
$3.7M
Postdoctoral Training in CNS Drug Discovery ResearchT32MH093366 · NIMH · VANDERBILT UNIVERSITY · PI CONN, P JEFFREY · 2011 to 2015
$1.0M
NIMH NIH HHS 1R01MH082867NIMH NIH HHS R01 MH073676NIMH NIH HHS R01 MH082867NIMH NIH HHS T32 MH065215NIMH NIH HHS T32 MH093366NIMH NIH HHS U01 MH087965NIMH NIH HHS U54 MH084659NIMH NIH HHS U54MH084659
6 · The paper itself

Abstract

This Letter describes the continued optimization of an MLPCN probe molecule (ML137) with a focused effort on the replacement/modification of the isatin moiety present in this highly selective M(1) PAM. A diverse range of structures were validated as viable replacements for the isatin, many of which engendered sizeable improvements in their ability to enhance the potency and efficacy of acetylcholine when compared to ML137. Muscarinic receptor subtype selectivity for the M(1) receptor was also maintained.

Indexed as

Inhibitory Concentration 50IsatinMolecular ProbesMolecular StructureMonoamine Oxidase InhibitorsReceptor, Muscarinic M1IsatinML 137Molecular ProbesMonoamine Oxidase InhibitorsReceptor, Muscarinic M1

Identifiers

PMID23237839
PMCPMC3534865
OpenAlexW2013598275

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.