Evidence map›Paper›PMID 26906637›Full record

ArticleBioorganic & medicinal chemistry letters2016

Inhibition of human DNA topoisomerase IIα by two novel ellipticine derivatives.

Kendra R Vann, Yavuz Ergün, Sevil Zencir, Serkan Oncuoglu, Neil Osheroff, Zeki Topcu

Open access · greenAbstract read
In one paragraph

Article in Bioorganic & medicinal chemistry letters, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

11 citing papers in PubMed, 39 citations in OpenAlex.

  1. Acridine BasedMolecules (Basel, Switzerland) · 2022
    Article
  2. Review
  3. DNA topoisomerases as molecular targets for anticancer drugs.Journal of enzyme inhibition and medicinal chemistry · 2020
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Application of hepatic cytochrome bToxicology and applied pharmacology · 2019
    Article
  9. Article
  10. Article
  11. 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

6 authors at 4 institutions in 2 countries.

Kendra R VannDepartment of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
Yavuz ErgünDepartment of Chemistry, Faculty of Science, Dokuz Eylul University, 35160 Izmir, Turkey.
Sevil ZencirDepartment of Medical Biology, Faculty of Medicine, Pamukkale University, 20070 Denizli, Turkey.
Serkan OncuogluDepartment of Chemistry, Faculty of Science, Dokuz Eylul University, 35160 Izmir, Turkey.
Neil OsheroffDepartment of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA; Department of Medicine (Hematology/Oncology), Vanderbilt University School of Medicine, Nashville, TN 37232, USA; VA Tennessee Valley Healthcare System, Nashville, TN 37212, USA. Electronic address: neil.osheroff@vanderbilt.edu.
Zeki TopcuDepartment of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, 35100 Izmir, Turkey. Electronic address: zeki.topcu@ege.edu.tr.
Dokuz Eylül University · TRVanderbilt University · USEge University · TRPamukkale University · TR

Funding

Vanderbilt/Meharry Initiative for Minority Student DvptR25GM062459 · NIGMS · VANDERBILT UNIVERSITY · PI VELEZ EDWARDS, DIGNA R · 2002 to 2020
$10.4M
MOLECULAR BIOPHYSICS TRAINING PROGRAM AT VANDERBILTT32GM008320 · NIGMS · VANDERBILT UNIVERSITY · PI CHAZIN, WALTER J. · 1989 to 2023
$7.9M
FUNCTION AND BIOLOGY OF EUKARYOTIC DNA TOPOISOMERASESR01GM033944 · NIGMS · VANDERBILT UNIVERSITY · PI OSHEROFF, NEIL · 1985 to 2015
$5.5M
NIGMS NIH HHS GM033944NIGMS NIH HHS R01 GM033944NIGMS NIH HHS R25 GM062459NIGMS NIH HHS R25-GM062459NIGMS NIH HHS T32 GM008320NIGMS NIH HHS T32-GM08320
6 · The paper itself

Abstract

Ellipticine (5,11-dimethyl-6H-pyrido[4,3-b]carbazole) is an antineoplastic agent that intercalates into DNA and alters topoisomerase II activity. Unfortunately, this compound displays a number of adverse properties. Therefore, to investigate new ellipticine-based compounds for their potential as topoisomerase II-targeted drugs, we synthesized two novel derivatives, N-methyl-5-demethyl ellipticine (ET-1) and 2-methyl-N-methyl-5-demethyl ellipticinium iodide (ET-2). As determined by DNA decatenation and cleavage assays, ET-1 and ET-2 act as catalytic inhibitors of human topoisomerase IIα and are both more potent than the parent compound. Neither compound impairs the ability of the type II enzyme to bind its DNA substrate. Finally, the potency of ET-1 and ET-2 as catalytic inhibitors of topoisomerase IIα appears to be related to their ability to intercalate into the double helix.

Indexed as

Antigens, NeoplasmDNADNA-Binding ProteinsDNA Topoisomerases, Type IIEllipticinesHumansIntercalating AgentsMethylationTopoisomerase II InhibitorsAntigens, NeoplasmDNADNA-Binding ProteinsDNA Topoisomerases, Type IIEllipticinesIntercalating AgentsTopoisomerase II InhibitorsAnticancer drugsCatalytic inhibitorDNA cleavageDNA intercalationDNA topoisomerase IIαEllipticine derivatives

Identifiers

PMID26906637
PMCPMC4785065
OpenAlexW2285646434

What OpenQuestion holds

Textmetadata
LicenceTDM
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.