Evidence map›Paper›PMID 32736077›Full record

ArticleBioorganic & medicinal chemistry letters2020

Development of SKI-349, a dual-targeted inhibitor of sphingosine kinase and microtubule polymerization.

Jeremy A Hengst, Shailaja Hegde, Robert F Paulson, Jong K Yun

Open access · greenAbstract read
In one paragraph

Article in Bioorganic & medicinal chemistry letters, 2020. 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
0.8field-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, 15 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

4 authors at 2 institutions in 1 country.

Jeremy A HengstDepartment of Pharmacology, Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA, USA.
Shailaja HegdeHoxworth Blood Center, University of Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
Robert F PaulsonDepartment of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA.
Jong K YunDepartment of Pharmacology, Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA, USA. Electronic address: jky1@psu.edu.
Pennsylvania State University · USUniversity of Cincinnati · US

Funding

Tissue Repository and Animal Models CoreP01CA171983 · NCI · UNIVERSITY OF VIRGINIA · PI CHALFANT, CHARLES E. · 2013 to 2024
$19.9M
NCI NIH HHS P01 CA171983
6 · The paper itself

Abstract

Our sphingosine kinase inhibitor (SKI) optimization studies originated with the optimization of the SKI-I chemotype by replacement of the substituted benzyl rings with substituted phenyl rings giving rise to the discovery of SKI-178. We have recently reported that SKI-178 is a dual-targeted inhibitor of both sphingosine kinase isoforms (SphK1/2) and a microtubule disrupting agent (MDA). In mechanism-of-action studies, we have shown that these two separate actions synergize to induce cancer cell death in acute myeloid leukemia (AML) cell and animal models. Owning to the effectiveness of SKI-178, we sought to further refine the chemotype while maintaining "on-target" SKI and MDA activities. Herein, we modified the "linker region" between the substituted phenyl rings of SKI-178 through a structure guided approach. These studies have yielded the discovery of an SKI-178 congener, SKI-349, with log-fold enhancements in both SphK inhibition and cytotoxic potency. Importantly, SKI-349 also demonstrates log-fold improvements in therapeutic efficacy in a retro-viral transduction model of MLL-AF9 AML as compared to previous studies with SKI-178. Together, our results strengthen the hypothesis that simultaneous targeting of the sphingosine kinases (SphK1/2) and the induction of mitotic spindle assembly checkpoint arrest, via microtubule disruption, might be an effective therapeutic strategy for hematological malignancies including AML.

Indexed as

Drug DevelopmentAntineoplastic AgentsCell Line, TumorCell ProliferationCell SurvivalDose-Response Relationship, DrugDrug Screening Assays, AntitumorEnzyme InhibitorsHumansMicrotubulesMolecular StructurePhosphotransferases (Alcohol Group Acceptor)PolymerizationSphingosine KinaseStructure-Activity RelationshipAntineoplastic AgentsEnzyme InhibitorsPhosphotransferases (Alcohol Group Acceptor)Sphingosine Kinasesphingosine kinase 2, humanDual-targeted inhibitorMicrotubule polymerization disruptorSphingosine-1-phosphateSphingosine kinaseSphingosine kinase inhibitor

Identifiers

PMID32736077
PMCPMC7541634
OpenAlexW3045556365

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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.