Evidence map›Paper›PMID 18953692›Full record

ArticleBreast cancer research and treatment2009

Fish oil targets PTEN to regulate NFkappaB for downregulation of anti-apoptotic genes in breast tumor growth.

Triparna Ghosh-Choudhury, Chandi C Mandal, Kathleen Woodruff, Patricia St Clair, Gabriel Fernandes, Goutam G Choudhury, Nandini Ghosh-Choudhury

Open access · greenAbstract read
In one paragraph

Article in Breast cancer research and treatment, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

42 citing papers in PubMed, 97 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Triparna Ghosh-ChoudhuryDepartment of Pathology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
Chandi C Mandal
Kathleen Woodruff
Patricia St Clair
Gabriel Fernandes
Goutam G Choudhury
Nandini Ghosh-Choudhury
The University of Texas Health Science Center at San Antonio · USSouth Texas Veterans Health Care System · US

Funding

Mechanism of Renal Cell Injury in DiabetesR01DK050190 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI GHOSH CHOUDHURY, GOUTAM · 2004 to 2013
$2.3M
Redox Signaling in Osteoblast DifferentiationR01AR052425 · NIAMS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI GHOSH-CHOUDHURY, NANDINI · 2005 to 2009
$1.1M
EFFECTS OF n-3 FATTY ACIDS AND EXERCISE ON OSTEOPOROSISR01AG023648 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI FERNANDES, GABRIEL J J · 2005 to 2008
$985k
NIAMS NIH HHS R01 AR052425NIAMS NIH HHS R01 AR52425NIA NIH HHS R01 AG023648NIDDK NIH HHS R01 DK050190NIDDK NIH HHS R01 DK 50190
6 · The paper itself

Abstract

The molecular mechanism for the beneficial effect of fish oil on breast tumor growth is largely undefined. Using the xenograft model in nude mice, we for the first time report that the fish oil diet significantly increased the level of PTEN protein in the breast tumors. In addition, the fish oil diet attenuated the PI 3 kinase and Akt kinase activity in the tumors leading to significant inhibition of NFkappaB activation. Fish oil diet also prevented the expression of anti-apoptotic proteins Bcl-2 and Bcl-XL in the breast tumors with concomitant increase in caspase 3 activity. To extend these findings we tested the functional effects of DHA and EPA, the two active omega-3 fatty acids of fish oil, on cultured MDA MB-231 cells. In agreement with our in vivo data, DHA and EPA treatment increased PTEN mRNA and protein expression and inhibited the phosphorylation of p65 subunit of NFkappaB in MDA MB-231 cells. Furthermore, DHA and EPA reduced expression of Bcl-2 and Bcl-XL. NFkappaB DNA binding activity and NFkappaB-dependent transcription of Bcl-2 and Bcl-XL genes were also prevented by DHA and EPA treatment. Finally, we showed that PTEN expression significantly inhibited NFkappaB-dependent transcription of Bcl-2 and Bcl-XL genes. Taken together, our data reveals a novel signaling pathway linking the fish oil diet to increased PTEN expression that attenuates the growth promoting signals and augments the apoptotic signals, resulting in breast tumor regression.

Indexed as

AdenocarcinomaAnimalsApoptosisbcl-X ProteinBreast NeoplasmsCell Line, TumorDNA, NeoplasmDocosahexaenoic AcidsDown-RegulationEicosapentaenoic AcidFemaleFish OilsGene Expression Regulation, NeoplasticGenes, bcl-2HumansMiceAKT1 protein, humanBCL2L1 protein, humanbcl-X ProteinDNA, NeoplasmDocosahexaenoic AcidsEicosapentaenoic AcidFish OilsNeoplasm ProteinsNF-kappa BPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktProto-Oncogene Proteins c-bcl-2PTEN PhosphohydrolasePTEN protein, humanRELA protein, humanTranscription Factor RelA

Identifiers

PMID18953692
PMCPMC2847452
OpenAlexW1965966795

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.