Evidence map›Paper›PMID 26052950›Full record

ArticlePloS one2015

Designing and Testing of Novel Taxanes to Probe the Highly Complex Mechanisms by Which Taxanes Bind to Microtubules and Cause Cytotoxicity to Cancer Cells.

Marc St George, Ahmed T Ayoub, Asok Banerjee, Cassandra D M Churchill, Philip Winter, Mariusz Klobukowski, Carol E Cass, Richard F Ludueña, Jack A Tuszynski, Sambasivarao Damaraju

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

7 citing papers in PubMed, 13 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

10 authors at 2 institutions in 2 countries.

Marc St GeorgeDepartment of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada.
Ahmed T AyoubDepartment of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
Asok BanerjeeDepartment of Biochemistry, University of Texas Health Science Center, San Antonio, Texas, United States of America.
Cassandra D M ChurchillDepartment of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
Philip WinterDepartment of Oncology, University of Alberta, Edmonton, Alberta, Canada.
Mariusz KlobukowskiDepartment of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
Carol E CassDepartment of Oncology, University of Alberta, Edmonton, Alberta, Canada.
Richard F LudueñaDepartment of Biochemistry, University of Texas Health Science Center, San Antonio, Texas, United States of America.
Jack A TuszynskiDepartment of Oncology, University of Alberta, Edmonton, Alberta, Canada; Department of Physics, University of Alberta, Edmonton, Alberta, Canada.
Sambasivarao DamarajuDepartment of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada.
University of Alberta · CAThe University of Texas Health Science Center at San Antonio · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Our previous work identified an intermediate binding site for taxanes in the microtubule nanopore. The goal of this study was to test derivatives of paclitaxel designed to bind to this intermediate site differentially depending on the isotype of β-tubulin. Since β-tubulin isotypes have tissue-dependent expression--specifically, the βIII isotype is very abundant in aggressive tumors and much less common in normal tissues--this is expected to lead to tubulin targeted drugs that are more efficacious and have less side effects. Seven derivatives of paclitaxel were designed and four of these were amenable for synthesis in sufficient purity and yield for further testing in breast cancer model cell lines. None of the derivatives studied were superior to currently used taxanes, however computer simulations provided insights into the activity of the derivatives. Our results suggest that neither binding to the intermediate binding site nor the final binding site is sufficient to explain the activities of the derivative taxanes studied. These findings highlight the need to iteratively improve on the design of taxanes based on their activity in model systems. Knowledge gained on the ability of the engineered drugs to bind to targets and bring about activity in a predictable manner is a step towards personalizing therapies.

Indexed as

Drug DesignATP Binding Cassette Transporter, Subfamily B, Member 1Binding SitesBlotting, WesternCell DeathCell Line, TumorDocetaxelHumansInhibitory Concentration 50MicrotubulesMolecular Docking SimulationPaclitaxelPermeabilityPolymerizationTaxoidsThermodynamicsATP Binding Cassette Transporter, Subfamily B, Member 1DocetaxelPaclitaxelTaxoidsTubulin

Identifiers

PMID26052950
PMCPMC4460180
OpenAlexW2337969683

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.