Evidence map›Paper›PMID 20179205›Full record

ArticleCancer research2010

Activation of phosphatidylcholine cycle enzymes in human epithelial ovarian cancer cells.

Egidio Iorio, Alessandro Ricci, Marina Bagnoli, Maria Elena Pisanu, Giancarlo Castellano, Massimo Di Vito, Elisa Venturini, Kristine Glunde, Zaver M Bhujwalla, Delia Mezzanzanica and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 126 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
126citing papers in PubMed, 2 pooled it
10.3field-weighted citation impact, top 1% 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

126 citing papers in PubMed, 2 syntheses or guidelines pooled it, 224 citations in OpenAlex.

  1. Pooled it
  2. Large-scale Integrated Analysis of Genetics and Metabolomic Data Reveals Potential Links Between Lipids and Colorectal Cancer Risk.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2022
    Pooled it
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  12. Targeting Lipid Metabolism in Cancer Stem Cells for Anticancer Treatment.International journal of molecular sciences · 2024
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66 more citing papers are in PubMed but not listed here.

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

12 authors at 3 institutions in 2 countries.

Egidio IorioDepartment of Cell Biology and Neurosciences, Section of Molecular and Cellular Imaging, Istituto Superiore di Sanità, Rome, Italy.
Alessandro Ricci
Marina Bagnoli
Maria Elena Pisanu
Giancarlo Castellano
Massimo Di Vito
Elisa Venturini
Kristine Glunde
Zaver M Bhujwalla
Delia Mezzanzanica
Silvana Canevari
Franca Podo
Johns Hopkins University · USFondazione IRCCS Istituto Nazionale dei Tumori · ITIstituto Superiore di Sanità · IT

Funding

Theranostic Imaging of Metastatic Prostate CancerP50CA103175 · NCI · JOHNS HOPKINS UNIVERSITY · PI BARKER, PETER B · 2003 to 2015
$17.9M
NCI NIH HHS P50 CA103175
6 · The paper itself

Abstract

Altered phosphatidylcholine (PC) metabolism in epithelial ovarian cancer (EOC) could provide choline-based imaging approaches as powerful tools to improve diagnosis and identify new therapeutic targets. The increase in the major choline-containing metabolite phosphocholine (PCho) in EOC compared with normal and nontumoral immortalized counterparts (EONT) may derive from (a) enhanced choline transport and choline kinase (ChoK)-mediated phosphorylation, (b) increased PC-specific phospholipase C (PC-plc) activity, and (c) increased intracellular choline production by PC deacylation plus glycerophosphocholine-phosphodiesterase (GPC-pd) or by phospholipase D (pld)-mediated PC catabolism followed by choline phosphorylation. Biochemical, protein, and mRNA expression analyses showed that the most relevant changes in EOC cells were (a) 12-fold to 25-fold ChoK activation, consistent with higher protein content and increased ChoKalpha (but not ChoKbeta) mRNA expression levels; and (b) 5-fold to 17-fold PC-plc activation, consistent with higher, previously reported, protein expression. PC-plc inhibition by tricyclodecan-9-yl-potassium xanthate (D609) in OVCAR3 and SKOV3 cancer cells induced a 30% to 40% reduction of PCho content and blocked cell proliferation. More limited and variable sources of PCho could derive, in some EOC cells, from 2-fold to 4-fold activation of pld or GPC-pd. Phospholipase A2 activity and isoform expression levels were lower or unchanged in EOC compared with EONT cells. Increased ChoKalpha mRNA, as well as ChoK and PC-plc protein expression, were also detected in surgical specimens isolated from patients with EOC. Overall, we showed that the elevated PCho pool detected in EOC cells primarily resulted from upregulation/activation of ChoK and PC-plc involved in PC biosynthesis and degradation, respectively.

Indexed as

Choline KinaseEnzyme ActivationEpithelial CellsFemaleHumansMembrane Transport ProteinsOvarian NeoplasmsPhosphatidylcholinesPhospholipase DPhosphoric Diester HydrolasesType C PhospholipasesCholine Kinasecholine transporterglycerophosphocholine phosphodiesteraseMembrane Transport ProteinsPhosphatidylcholinesphosphatidylcholine-specific phospholipase CPhospholipase DPhosphoric Diester HydrolasesType C Phospholipases

Identifiers

PMID20179205
PMCPMC2831129
OpenAlexW1991328178

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.