Evidence map›Paper›PMID 23117589›Full record

ArticleEuropean journal of medicinal chemistry2012

Exploring the PDE5 H-pocket by ensemble docking and structure-based design and synthesis of novel β-carboline derivatives.

Nermin S Ahmed, Amal H Ali, Shreen M El-Nashar, Bernard D Gary, Alexandra M Fajardo, Heather N Tinsley, Gary A Piazza, Matthias Negri, Ashraf H Abadi

Abstract read
In one paragraph

Article in European journal of medicinal chemistry, 2012. 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
0.5field-weighted citation impact, top 35% 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, 21 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

9 authors at 4 institutions in 3 countries.

Nermin S AhmedDepartment of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Main Entrance, Al-Tagmoaa Al-Khames, Cairo 11835, Egypt.
Amal H Ali
Shreen M El-Nashar
Bernard D Gary
Alexandra M Fajardo
Heather N Tinsley
Gary A Piazza
Matthias Negri
Ashraf H Abadi
German University in Cairo · EGUniversity of South Alabama · USSaarland University · DEUSA Mitchell Cancer Institute · US

Funding

Selective anti-cancer activity of sulindac derivatives on KRAS mutant colon tumor cells by inducing ROSR01CA131378 · NCI · UNIVERSITY OF SOUTH ALABAMA · PI PIAZZA, GARY A · 2008 to 2019
$5.2M
Development of a novel sulindac amide for colorectal cancer chemopreventionR01CA148817 · NCI · UNIVERSITY OF SOUTH ALABAMA · PI PIAZZA, GARY A · 2010 to 2015
$2.4M
Phosphodiesterase 5: A Novel Target and Inhibitor for Breast Cancer ChemopreventionR01CA155638 · NCI · UNIVERSITY OF SOUTH ALABAMA · PI PIAZZA, GARY A · 2012 to 2017
$2.3M
NCI NIH HHS R01 CA131378NCI NIH HHS R01 CA148817NCI NIH HHS R01 CA155638
6 · The paper itself

Abstract

By studying the co-crystal information of interactions between PDE5 and its inhibitors, forty new tetrahydro-β-carbolines based-analogues were synthesized, and tested for their PDE5 inhibition. Some compounds were as active as tadalafil in inhibiting PDE5 and of better selectivity profile particularly versus PDE11A, the nature of the terminal ring and its nitrogen substituent are the main determinants of selectivity. Ensemble docking confirmed the role of H-loop closed conformer in activity versus its occluded and open forms. Conformational studies showed the effect of bulkiness of the terminal ring N-alkyl substituent on the formation of stable enzyme ligands conformers. The difference in potencies of hydantoin and piperazinedione analogues, together with the necessity of C-5/C-6 R-absolute configuration has been revealed through molecular docking.

Indexed as

3',5'-Cyclic-GMP PhosphodiesterasesCarbolinesCell ProliferationCyclic Nucleotide Phosphodiesterases, Type 5DiketopiperazinesDrug DesignEnzyme AssaysHumansHydantoinsHydrogen BondingInhibitory Concentration 50KineticsMolecular Docking SimulationPhosphodiesterase 5 InhibitorsPhosphoric Diester HydrolasesProtein Structure, Secondary3',5'-Cyclic-GMP PhosphodiesterasesCarbolinesCyclic Nucleotide Phosphodiesterases, Type 5DiketopiperazinesHydantoinsPDE11A protein, humanPhosphodiesterase 5 InhibitorsPhosphoric Diester HydrolasesRecombinant ProteinsTadalafil

Identifiers

PMID23117589
PMCPMC4994520
OpenAlexW2020289948

What OpenQuestion holds

Textmetadata
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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.