Evidence map›Paper›PMID 24025358›Full record

ArticleCancer biology & therapy2013

Omega-3 polyunsaturated fatty acid promotes the inhibition of glycolytic enzymes and mTOR signaling by regulating the tumor suppressor LKB1.

Rafaela Andrade-Vieira, Jae H Han, Paola A Marignani

Open access · bronzeAbstract read
In one paragraph

Article in Cancer biology & therapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 22% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
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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

3 authors at 1 institution in 2 countries.

Rafaela Andrade-VieiraDepartment of Biochemistry and Molecular Biology; Faculty of Medicine; Dalhousie University; Halifax, NS Canada.
Jae H Han
Paola A Marignani
Dalhousie University · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

The omega-3 polyunsaturated fatty acids (ω3PUFAs) are a class of lipids biologically effective for the treatment of inflammatory disorders, cardiovascular disease and cancer. Patients consuming a high dietary intake of ω3PUFAs have shown a low incidence of metabolic disorders, including cancer. Although the effects of ω3PUFAs intake was shown to be involved in the prevention and treatment of these diseases, the underlying molecular mechanisms involved are not well understood. Here, we show that ω3PUFA, docosahexaenoic acid (DHA) enhanced the tumor suppressor function of LKB1. We observed that when LKB1 expressing cells are treated with DHA, there is an increase in LKB1 activity leading to phosphorylation of AMPK and inhibition of mTOR signaling. Abrogation of LKB1 in MCF-7 cells by siRNA reversed this phenotype. Furthermore, cellular metabolism was altered and ATP levels were reduced in response to DHA treatment, which was further attenuated in cells expressing LKB1. More importantly, in mammary epithelial cells expressing LKB1, the rate of glycolysis was decreased as a result of diminished expression of glycolytic enzymes. Functionally, these events lead to a decrease in the migration potential of these cells. Overall, our discovery shows for the first time that LKB1 function is enhanced in response to ω3PUFA treatment, thereby resulting in the regulation of cell metabolism.

Indexed as

AMP-Activated Protein Kinase KinasesCell MovementDocosahexaenoic AcidsGlucoseGlycolysisHeLa CellsHexokinaseHumansL-Lactate DehydrogenaseMCF-7 CellsProtein Serine-Threonine KinasesPyruvate KinaseSignal TransductionTOR Serine-Threonine KinasesAMP-Activated Protein Kinase KinasesDocosahexaenoic AcidsGlucoseHexokinaseL-Lactate DehydrogenaseMTOR protein, humanProtein Serine-Threonine KinasesPyruvate KinaseSTK11 protein, humanTOR Serine-Threonine Kinasesaerobic glycolysiscancercell metabolismDHAglycolytic enzymeshexokinaseLDH-ALKB1mTOR signalingomega-3 PUFA

Identifiers

PMID24025358
PMCPMC3925660
OpenAlexW2020822665

What OpenQuestion holds

Textmetadata
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.