Evidence map›Paper›PMID 21799791›Full record

ArticlePloS one2011

Autotaxin and LPA receptors represent potential molecular targets for the radiosensitization of murine glioma through effects on tumor vasculature.

Stephen M Schleicher, Dinesh K Thotala, Amanda G Linkous, Rong Hu, Kathleen M Leahy, Eugenia M Yazlovitskaya, Dennis E Hallahan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. World journal of gastrointestinal oncology · 2022
    Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Role of autotaxin in cancer stem cells.Cancer metastasis reviews · 2018
    Review
  16. Review
  17. Article
  18. Review
  19. Article
  20. Primary Role for Kinin BMolecular neurobiology · 2017
    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

7 authors at 3 institutions in 1 country.

Stephen M SchleicherSchool of Medicine, Vanderbilt University, Nashville, Tennessee, United States of America.
Dinesh K Thotala
Amanda G Linkous
Rong Hu
Kathleen M Leahy
Eugenia M Yazlovitskaya
Dennis E Hallahan
Washington University in St. Louis · USVanderbilt University · USNational Institutes of Health · US

Funding

X-ray Targeted Therapeutic Genes within NanoparticlesR01CA125757 · NCI · WASHINGTON UNIVERSITY · PI HALLAHAN, DENNIS E · 2007 to 2011
$1.7M
Lysophospholipids in Radiation Induced Signal Transduction in Malignant GliomasR01CA140220 · NCI · WASHINGTON UNIVERSITY · PI HALLAHAN, DENNIS E · 2010 to 2014
$1.7M
Pharmacodynamic Assessment of RTK Inhibitors in CancerR01CA112385 · NCI · WASHINGTON UNIVERSITY · PI HALLAHAN, DENNIS E · 2005 to 2009
$1.3M
Howard Hughes Medical InstituteNCI NIH HHS 1R01CA140220-02NCI NIH HHS 5R01CA125757-06NCI NIH HHS 7R01CA112385-0NCI NIH HHS R01 CA112385NCI NIH HHS R01 CA125757NCI NIH HHS R01 CA140220
6 · The paper itself

Abstract

Despite wide margins and high dose irradiation, unresectable malignant glioma (MG) is less responsive to radiation and is uniformly fatal. We previously found that cytosolic phospholipase A2 (cPLA(2)) is a molecular target for radiosensitizing cancer through the vascular endothelium. Autotaxin (ATX) and lysophosphatidic acid (LPA) receptors are downstream from cPLA(2) and highly expressed in MG. Using the ATX and LPA receptor inhibitor, α-bromomethylene phosphonate LPA (BrP-LPA), we studied ATX and LPA receptors as potential molecular targets for the radiosensitization of tumor vasculature in MG. Treatment of Human Umbilical Endothelial cells (HUVEC) and mouse brain microvascular cells bEND.3 with 5 µmol/L BrP-LPA and 3 Gy irradiation showed decreased clonogenic survival, tubule formation, and migration. Exogenous addition of LPA showed radioprotection that was abrogated in the presence of BrP-LPA. In co-culture experiments using bEND.3 and mouse GL-261 glioma cells, treatment with BrP-LPA reduced Akt phosphorylation in both irradiated cell lines and decreased survival and migration of irradiated GL-261 cells. Using siRNA to knock down LPA receptors LPA1, LPA2 or LPA3 in HUVEC, we demonstrated that knockdown of LPA2 but neither LPA1 nor LPA3 led to increased viability and proliferation. However, knockdown of LPA1 and LPA3 but not LPA2 resulted in complete abrogation of tubule formation implying that LPA1 and LPA3 on endothelial cells are likely targets of BrP-LPA radiosensitizing effect. Using heterotopic tumor models of GL-261, mice treated with BrP-LPA and irradiation showed a tumor growth delay of 6.8 days compared to mice treated with irradiation alone indicating that inhibition of ATX and LPA receptors may significantly improve malignant glioma response to radiation therapy. These findings identify ATX and LPA receptors as molecular targets for the development of radiosensitizers for MG.

Indexed as

Molecular Targeted TherapyAnimalsCell DeathCell Line, TumorCell MovementCell SurvivalEndothelial CellsGliomaHumansHuman Umbilical Vein Endothelial CellsLysophospholipase DLysophospholipidsMiceNeovascularization, PathologicPhosphoric Diester HydrolasesRadiation-Sensitizing AgentsBrp-LPALysophospholipase DLysophospholipidsPhosphoric Diester HydrolasesRadiation-Sensitizing AgentsReceptors, Lysophosphatidic Acid

Identifiers

PMID21799791
PMCPMC3140496
OpenAlexW2071478988

What OpenQuestion holds

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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.