Evidence map›Paper›PMID 19752858›Full record

ArticleLaboratory investigation; a journal of technical methods and pathology2009

Free fatty acids enhance breast cancer cell migration through plasminogen activator inhibitor-1 and SMAD4.

Chang Hyun Byon, Robert W Hardy, Changchun Ren, Selvarangan Ponnazhagan, Danny R Welch, Jay M McDonald, Yabing Chen

Open access · greenAbstract read
In one paragraph

Article in Laboratory investigation; a journal of technical methods and pathology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 26% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. The pleiotropic roles of adipocyte secretome in remodeling breast cancer.Journal of experimental & clinical cancer research : CR · 2022
    Review
  9. Eicosapentaenoic Acid InhibitsBiomolecules · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Multifaceted Oncogenic Role of Adipocytes in the Tumour Microenvironment.Advances in experimental medicine and biology · 2020
    Review
  18. Article
  19. Review
  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

7 authors at 1 institution in 1 country.

Chang Hyun ByonDepartment of Cell Biology, University of Alabama at Birmingham, Birmingham, 1530 3rd Avenue South, 533 LHRB, Birmingham, AL 35294, USA. ybchen@uab.edu
Robert W Hardy
Changchun Ren
Selvarangan Ponnazhagan
Danny R Welch
Jay M McDonald
Yabing Chen
University of Alabama at Birmingham · US

Funding

Training Program in Cardiovascular PathophysiologyT32HL007918 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BALLINGER, SCOTT W. · 1999 to 2018
$3.6M
NHLBI NIH HHS T32 HL007918
6 · The paper itself

Abstract

Obesity is a risk factor for breast cancer and is associated with increased plasma concentrations of free fatty acids (FFAs). We and others have demonstrated that FFA induces plasminogen activator inhibitor-1 (PAI-1) expression in a variety of cells. Emerging evidence supports elevation of PAI-1 as a prognostic marker for breast cancer. Therefore, we hypothesized that FFAs might increase expression of PAI-1 in breast cancer cells and facilitate breast cancer progression. Secreted PAI-1 was higher in invasive and metastatic MDA-MB-231 cells compared with less invasive and non-metastatic Hs578T cells. Utilizing FFAs with different saturation and chain lengths, we demonstrated that linoleic acid induced expression of PAI-1 in MDA-MB-231 cells. Linoleic acid also induced in vitro migration of MDA-MB-231. By contrast, other FFAs tested had little or no effect on PAI-1 expression or migration. Linoleic acid-induced breast cancer cell migration was completely inhibited by virally expressed antisense PAI-1 RNA. Furthermore, increased expression of PAI-1 by FFAs was not detected in the SMAD4-deficient MDA-MB-468 breast carcinoma cells. Electrophoretic mobility-shift assay confirmed that linoleic acid-induced expression of PAI-1 was mediated, at least in part, by SMAD4 in MDA-MB-231 cells. That linoleic acid induces PAI-1 expression in breast cancer cells through SMAD4 provides a novel insight into understanding the relationships between two migration-associated molecules, FFAs, and PAI-1.

Indexed as

Breast NeoplasmsCell Line, TumorCell MovementFatty Acids, NonesterifiedFemaleGene Expression Regulation, NeoplasticGene SilencingHumansNeoplasm InvasivenessOligoribonucleotides, AntisensePlasminogen Activator Inhibitor 1RNA, MessengerRNA, NeoplasmSmad4 ProteinFatty Acids, NonesterifiedOligoribonucleotides, AntisensePlasminogen Activator Inhibitor 1RNA, MessengerRNA, NeoplasmSmad4 ProteinSMAD4 protein, human

Identifiers

PMID19752858
PMCPMC2905319
OpenAlexW1989584350

What OpenQuestion holds

Textmetadata
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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.