Evidence map›Paper›PMID 25026288›Full record

ArticleOncotarget2014

Loss of PTEN stabilizes the lipid modifying enzyme cytosolic phospholipase A₂α via AKT in prostate cancer cells.

Soma Vignarajan, Chanlu Xie, Mu Yao, Yuting Sun, Ulla Simanainen, Paul Sved, Tao Liu, Qihan Dong

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. VLCAD inhibits the proliferation and invasion of hepatocellular cancer cells through regulating PI3K/AKT axis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2022
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  3. Review
  4. Review
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  7. Article
  8. Probing the PI3K/Akt/mTor pathway usingScientific reports · 2016
    Article
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  10. Article
  11. Article
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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

8 authors at 4 institutions in 1 country.

Soma VignarajanDiscipline of Endocrinology, Central Clinical School, Bosch Institute, Royal Prince Alfred Hospital, and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
Chanlu XieDiscipline of Endocrinology, Central Clinical School, Bosch Institute, Royal Prince Alfred Hospital, and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia; School of Science and Health, The University of Western Sydney, Sydney, Australia.
Mu YaoDiscipline of Endocrinology, Central Clinical School, Bosch Institute, Royal Prince Alfred Hospital, and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
Yuting SunChildren's Cancer Institute Australia for Medical Research, Sydney, Australia.
Ulla SimanainenANZAC Research institute, The University of Sydney, Sydney, NSW, Australia.
Paul SvedSydney Cancer Centre, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.
Tao LiuChildren's Cancer Institute Australia for Medical Research, Sydney, Australia; School of Women's and Children's Health, UNSW Medicine, Sydney, Australia, Australia.
Qihan DongDiscipline of Endocrinology, Central Clinical School, Bosch Institute, Royal Prince Alfred Hospital, and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia; School of Science and Health, The University of Western Sydney, Sydney, Australia.
Royal Prince Alfred Hospital · AUChildren's Cancer Institute Australia · AUUniversity of Sydney · AUAnzac Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aberrant increase in pAKT, due to a gain-of-function mutation of PI3K or loss-of-function mutation or deletion of PTEN, occurs in prostate cancer and is associated with poor patient prognosis. Cytosolic phospholipase A₂α (cPLA₂α) is a lipid modifying enzyme by catalyzing the hydrolysis of membrane arachidonic acid. Arachidonic acid and its metabolites contribute to survival and proliferation of prostate cancer cells. We examined whether AKT plays a role in promoting cPLA₂α action in prostate cancer cells. We found a concordant increase in pAKT and cPLA₂α levels in prostate tissue of prostate epithelial-specific PTEN-knockout but not PTEN-wide type mice. Restoration of PTEN expression or inhibition of PI3K action decreased cPLA₂α expression in PTEN-mutated or deleted prostate cancer cells. An increase in AKT by Myr-AKT elevated cPLA₂α protein levels, which could be diminished by inhibition of AKT phosphorylation without noticeable change in total AKT levels. pAKT levels had no influence on cPLA₂α at mRNA levels but reduced cPLA₂α protein degradation. Anti-AKT antibody co-immunoprecipitated cPLA₂α and vice versa. Hence, AKT plays a role in enhancing cPLA₂α protein stability in PTEN-null prostate cancer cells, revealing a link between oncogenic pathway and lipid metabolism.

Indexed as

AnimalsCell Line, TumorHumansMaleMiceMice, KnockoutPhospholipases A2PhosphorylationProstatic NeoplasmsProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseSignal TransductionTransfectionPhospholipases A2Proto-Oncogene Proteins c-aktPTEN PhosphohydrolasePTEN protein, humanPten protein, mouse

Identifiers

PMID25026288
PMCPMC4171630
OpenAlexW1951808252

What OpenQuestion holds

Textmetadata
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.