Evidence map›Paper›PMID 23301618›Full record

ArticleThe Biochemical journal2013

Inhibition of human γ-glutamyl transpeptidase: development of more potent, physiologically relevant, uncompetitive inhibitors.

Stephanie Wickham, Nicholas Regan, Matthew B West, Justin Thai, Paul F Cook, Simon S Terzyan, Pui Kai Li, Marie H Hanigan

Open access · greenAbstract read
In one paragraph

Article in The Biochemical journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 35 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

8 authors at 4 institutions in 1 country.

Stephanie WickhamDepartment of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Nicholas Regan
Matthew B West
Justin Thai
Paul F Cook
Simon S Terzyan
Pui Kai Li
Marie H Hanigan
The Ohio State University · USUniversity of Oklahoma Health Sciences Center · USOklahoma Medical Research Foundation · USUniversity of Oklahoma · US

Funding

Structure-Function Studies of MsvR, a Methanogen-Specific Transcriptional RegulaP20GM103640 · NIGMS · UNIVERSITY OF OKLAHOMA · PI BOURNE, PHILIP CHARLES · 2012 to 2021
$20.4M
Significance of GGT Expression in TumorsR56CA057530 · NCI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI HANIGAN, MARIE H · 2009 to 2009
$238k
NCI NIH HHS R56 CA057530NCI NIH HHS R56CA57530NIGMS NIH HHS 1P20GM103640NIGMS NIH HHS P20 GM103640
6 · The paper itself

Abstract

GGT (γ-glutamyl transpeptidase) is an essential enzyme for maintaining cysteine homoeostasis, leukotriene synthesis, metabolism of glutathione conjugates and catabolism of extracellular glutathione. Overexpression of GGT has been implicated in many pathologies, and clinical inhibitors of GGT are under development for use in the treatment of asthma, cancer and other diseases. Inhibitors are generally characterized using synthetic GGT substrates. The present study of uncompetitive inhibitors of GGT, has revealed that the potency with which compounds inhibit GGT activity in the standard biochemical assay does not correlate with the potency with which they inhibit the physiological reaction catalysed by GGT. Kinetic studies provided insight into the mechanism of inhibition. Modifications to the sulfobenzene or distal benzene ring of the uncompetitive inhibitor OU749 affected activity. One of the most potent inhibitors was identified among a novel group of analogues with an amine group para on the benzosulfonamide ring. New more potent uncompetitive inhibitors of the physiological GGT reaction were found to be less toxic than the glutamine analogues that have been tested clinically. Development of non-toxic inhibitors is essential for exploiting GGT as a therapeutic target.

Indexed as

Drug DesignAnimalsBenzenesulfonamidesBinding, CompetitiveCells, CulturedDrug Evaluation, PreclinicalEnzyme Inhibitorsgamma-GlutamyltransferaseGlutathioneHumansMiceModels, BiologicalNIH 3T3 CellsProtein BindingSubstrate SpecificitySulfonamidesBenzenesulfonamidesEnzyme Inhibitorsgamma-GlutamyltransferaseGlutathioneN-(5-(4-methoxybenzyl)-1,3,4-thiadiazol-2-yl)benzenesulfonamideSulfonamidesThiadiazoles

Identifiers

PMID23301618
PMCPMC3836663
OpenAlexW1998265132

What OpenQuestion holds

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Read underepoch 390

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.