Evidence map›Paper›PMID 19089921›Full record

ArticleInternational journal of cancer2009

Downregulation of vascular endothelial growth factor and induction of tumor dormancy by 15-lipoxygenase-2 in prostate cancer.

Yong Tang, Man-Tzu Wang, Yakun Chen, Dianer Yang, Mingxin Che, Kenneth V Honn, Gregory D Akers, Stephen R Johnson, Daotai Nie

Open access · bronzeAbstract read
In one paragraph

Article in International journal of cancer, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

23 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Lipoxygenases at the Intersection of Infection and Carcinogenesis.International journal of molecular sciences · 2024
    Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Autophagy and Cancer Dormancy.Frontiers in oncology · 2021
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Mammalian lipoxygenases and their biological relevance.Biochimica et biophysica acta · 2015
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Effect of 15-lipoxygenase metabolites on angiogenesis: 15(S)-HPETE is angiostatic and 15(S)-HETE is angiogenic.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2012
    Article
  20. 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

9 authors at 2 institutions in 1 country.

Yong TangDepartment of Medical Microbiology, Immunology, and Cell Biology, Southern Illinois University School of Medicine and SimmonsCooper Cancer Institute, Springfield, IL 62794-9626, USA.
Man-Tzu Wang
Yakun Chen
Dianer Yang
Mingxin Che
Kenneth V Honn
Gregory D Akers
Stephen R Johnson
Daotai Nie
Southern Illinois University School of Medicine · USWayne State University · US

Funding

THROMBOXANES: ROLE IN TUMOR GROWTH AND METASTASISR01CA029997 · NCI · WAYNE STATE UNIVERSITY · PI HONN, KENNETH V · 1985 to 2008
$1.7M
15-Lipoxygenase-2 (ALOX15B) as a Tumor SuppressorR01CA131445 · NCI · SOUTHERN ILLINOIS UNIVERSITY SCH OF MED · PI NIE, DAOTAI · 2008 to 2012
$1.1M
NCI NIH HHS R01 CA029997NCI NIH HHS R01CA029997NCI NIH HHS R01 CA131445NCI NIH HHS R01CA131445
6 · The paper itself

Abstract

The enzyme 15-lipoxygenase-2 (15-LOX-2) utilizes arachidonic acid, a polyunsaturated fatty acid, to synthesize 15(S)-hydroxyeicosatetraenoic acid. Abundantly expressed in normal prostate epithelium but frequently suppressed in the cancerous tissues, 15-LOX-2 has been suggested as a functional suppressor of prostate cancer, but the mechanism(s) involved remains unknown. To study the functional role of 15-LOX-2 in prostate cancer, we expressed 15-LOX-2 as a fusion protein with GFP in DU145 and PC-3 cells and found that 15-LOX-2 increased cell cycle arrest at G0/G1 phase. When injected into athymic nu/nu mice, prostate cancer cells with 15-LOX-2 expression could still form palpable tumors without significant changes in tumorigenicity. But, the tumors with 15-LOX-2 expression grew significantly slower than those derived from vector controls and were kept dormant for a long period of time. Histological evaluation revealed an increase in cell death in tumors derived from prostate cancer cells with 15-LOX-2 expression, while in vitro cell culture conditions, no such increase in apoptosis was observed. Further studies found that the expression of vascular endothelial growth factor A (VEGF-A) was significantly reduced in prostate cancer cells with 15-LOX-2 expression restored. Our studies suggest that 15-LOX-2 suppresses VEGF gene expression and sustains tumor dormancy in prostate cancer. Loss of 15-LOX-2 functionalities, therefore, represents a key step for prostate cancer cells to exit from dormancy and embark on malignant progression in vivo.

Indexed as

AnimalsApoptosisArachidonate 15-LipoxygenaseBlotting, WesternCell Line, TumorCell ProliferationDown-RegulationEnzyme-Linked Immunosorbent AssayFlow CytometryGene ExpressionGene Expression Regulation, NeoplasticHumansImmunohistochemistryMaleMiceProstatic NeoplasmsArachidonate 15-LipoxygenaseRecombinant Fusion ProteinsVascular Endothelial Growth Factor A

Identifiers

PMID19089921
PMCPMC2913418
OpenAlexW1973057021

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.