Evidence map›Paper›PMID 25862198›Full record

ArticleBioorganic & medicinal chemistry letters2015

Elimination of a cholecystokinin receptor agonist 'trigger' in an effort to develop positive allosteric modulators without intrinsic agonist activity.

Aditya J Desai, Brad R Henke, Laurence J Miller

Open access · greenAbstract read
In one paragraph

Article in Bioorganic & medicinal chemistry letters, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

9 citing papers in PubMed, 10 citations in OpenAlex.

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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

3 authors at 2 institutions in 1 country.

Aditya J DesaiDepartment of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 13400 East Shea Blvd, Scottsdale, AZ 85259, United States.
Brad R HenkeMetabolic Pathways and Cardiovascular Therapy Area Unit, GlaxoSmithKline Inc., Research Triangle Park, NC 27709, United States.
Laurence J MillerDepartment of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 13400 East Shea Blvd, Scottsdale, AZ 85259, United States. Electronic address: miller@mayo.edu.
Mayo Clinic in Arizona · USPathways Behavioral Services · US

Funding

Type A CCK Receptor Structure, Function and RegulationR37DK032878 · NIDDK · MAYO CLINIC COLL OF MED, MAYO CLINIC AZ · PI MILLER, LAURENCE J · 2001 to 2010
$4.5M
Type A CCK Receptor Structure, Function & RegulationR01DK032878 · NIDDK · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI MILLER, LAURENCE J · 1986 to 2014
$2.5M
NIDDK NIH HHS DK032878NIDDK NIH HHS R01 DK032878NIDDK NIH HHS R37 DK032878
6 · The paper itself

Abstract

Cholecystokinin (CCK) acts at the type 1 cholecystokinin receptor (CCK1R) to elicit satiety and is a well-established drug target for obesity. To date, small molecule agonists have been developed, but have failed to demonstrate adequate efficacy in clinical trials, and concerns about side effects and potential toxicity have limited further development of full agonists. The use of positive allosteric modulators (PAMs) without intrinsic agonist activity that are active only for a brief period of time after a meal might represent a safer alternative. Here, we propose a possible novel strategy to develop such compounds by modifying the agonist 'trigger' of an existing small molecule agonist. We have studied analogues of the 1,5-benzodiazepine agonist, GI181771X, in which the N1-isopropyl agonist 'trigger' was modified. While agonist activity was greatly reduced in these compounds, they acted as negative, rather than positive modulators. The parent drug was also found to exhibit no positive modulation of CCK action. Receptor structure-activity relationship studies demonstrated that the mode of docking these derivatives was distinct from that of the parent compound, perhaps explaining their action as negative allosteric modulators. We conclude that this outcome is likely characteristic of the parental agonist, and that this strategy may be more successfully utilized with a parental ago-PAM, possessing intrinsic positive modulatory activity.

Indexed as

Allosteric RegulationAnimalsBenzodiazepinesCHO CellsCricetulusDose-Response Relationship, DrugHumansMolecular StructureReceptors, CholecystokininStructure-Activity RelationshipBenzodiazepinesReceptors, CholecystokininCCK1RCholecystokininG protein-coupled receptorsObesityPositive allosteric modulator

Identifiers

PMID25862198
PMCPMC4408270
OpenAlexW2089277938

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.