Evidence map›Paper›PMID 26325604›Full record

ArticleCancer letters2015

The vascular disrupting activity of OXi8006 in endothelial cells and its phosphate prodrug OXi8007 in breast tumor xenografts.

Tracy E Strecker, Samuel O Odutola, Ramona Lopez, Morgan S Cooper, Justin K Tidmore, Amanda K Charlton-Sevcik, Li Li, Matthew T MacDonough, Mallinath B Hadimani, Anjan Ghatak and 5 more

Abstract read
In one paragraph

Article in Cancer letters, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

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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

15 authors.

Tracy E StreckerDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA.
Samuel O OdutolaInstitute of Biomedical Studies, Baylor University, Waco, TX 76798-7224, USA.
Ramona LopezDepartment of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX 75390-9058, USA.
Morgan S CooperDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA.
Justin K TidmoreDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA.
Amanda K Charlton-SevcikDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA.
Li LiDepartment of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX 75390-9058, USA.
Matthew T MacDonoughDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA.
Mallinath B HadimaniDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA.
Anjan GhatakDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA.
Li LiuDepartment of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX 75390-9058, USA.
David J ChaplinOXiGENE Inc., South San Francisco, CA 94080, USA.
Ralph P MasonDepartment of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX 75390-9058, USA.
Kevin G PinneyDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA; Institute of Biomedical Studies, Baylor University, Waco, TX 76798-7224, USA.
Mary Lynn TrawickDepartment of Chemistry and Biochemistry, Baylor University, Waco, TX 76798-7348, USA; Institute of Biomedical Studies, Baylor University, Waco, TX 76798-7224, USA. Electronic address: mary_lynn_trawick@baylor.edu.

Funding

UT Southwestern Medical Center Simmons Comprehensive Cancer CenterP30CA142543 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI MELANIE H. COBB · 2010 to 2026
$53.7M
Chemotherapeutic Agents with Enhanced Selectivity for the Tumor MicroenvironmentR01CA140674 · NCI · BAYLOR UNIVERSITY · PI PINNEY, KEVIN G., TRAWICK, MARY LYNN · 2010 to 2014
$1.4M
Small Animal Bioluminescence and Fluorescence Imaging System (with 3D capability)S10RR024757 · NCRR · UT SOUTHWESTERN MEDICAL CENTER · PI MASON, RALPH P. · 2007 to 2007
$335k
NCI NIH HHS 1P30CA142543NCI NIH HHS 5R01CA140674NCI NIH HHS P30 CA142543NCI NIH HHS R01 CA140674NCRR NIH HHS 1S10RR024757NCRR NIH HHS S10 RR024757
6 · The paper itself

Abstract

This study describes the vascular disrupting ability and the mechanism of action of the indole-based tubulin-binding compound, OXi8006, and its water-soluble phosphate prodrug OXi8007. Treatment of rapidly proliferating human umbilical vein endothelial cells (HUVECs), used as a model for the tumor vasculature, with OXi8006 or OXi8007, caused potent microtubule disruption followed by extensive reorganization of the cytoskeletal network. The mechanism of action involved an increase in focal adhesion formation associated with an increase in phosphorylation of both non-muscle myosin light chain and focal adhesion kinase. These effects were dramatically diminished by an inhibitor of RhoA kinase, a downstream effector of RhoA. Cell cycle blockade at G2/M and cytotoxicity toward rapidly proliferating HUVECs were also observed. Capillary-like networks of HUVECs were disrupted by the action of both OXi8006 and OXi8007. The prodrug OXi8007 exhibited potent and rapid dose-dependent antivascular activity assessed by dynamic bioluminescence imaging (BLI) in an MDA-MB-231-luc breast cancer xenograft mouse model. By 6 hours post treatment, over 93% of the BLI signal was abolished with only a slight recovery at 24 hours. These findings were confirmed by histology. The results from this study demonstrate that OXi8007 is a potent vascular disrupting agent acting through an anti-microtubule mechanism involving RhoA.

Indexed as

AnimalsAntineoplastic AgentsBreast NeoplasmsCell AdhesionCell Line, TumorCytoskeletonFemaleFocal AdhesionsHumansHuman Umbilical Vein Endothelial CellsIndolesMice, SCIDPhosphorylationProtein Processing, Post-TranslationalSignal TransductionXenograft Model Antitumor Assays2-(3'-hydroxy-4'-methoxyphenyl)-3-(3'',4'',5''-trimethoxybenzoyl)-6-methoxyindoleAntineoplastic AgentsIndolesBioluminescence imaging (BLI)Breast cancerFocal adhesion kinase (FAK)MicrotubulesVascular disrupting agent (VDA)

Identifiers

PMID26325604
PMCPMC4817728

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Registered trials

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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.