Evidence map›Paper›PMID 21909432›Full record

ArticlePloS one2011

Phospholipase C isozymes are deregulated in colorectal cancer--insights gained from gene set enrichment analysis of the transcriptome.

Stine A Danielsen, Lina Cekaite, Trude H Ågesen, Anita Sveen, Arild Nesbakken, Espen Thiis-Evensen, Rolf I Skotheim, Guro E Lind, Ragnhild A Lothe

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 7% 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.

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  16. Nuclear phosphoinositide regulation of chromatin.Journal of cellular physiology · 2018
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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

9 authors at 2 institutions in 1 country.

Stine A DanielsenDepartment of Cancer Prevention, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.
Lina Cekaite
Trude H Ågesen
Anita Sveen
Arild Nesbakken
Espen Thiis-Evensen
Rolf I Skotheim
Guro E Lind
Ragnhild A Lothe
University of Oslo · NOOslo University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Colorectal cancer (CRC) is one of the most common cancer types in developed countries. To identify molecular networks and biological processes that are deregulated in CRC compared to normal colonic mucosa, we applied Gene Set Enrichment Analysis to two independent transcriptome datasets, including a total of 137 CRC and ten normal colonic mucosa samples. Eighty-two gene sets as described by the Kyoto Encyclopedia of Genes and Genomes database had significantly altered gene expression in both datasets. These included networks associated with cell division, DNA maintenance, and metabolism. Among signaling pathways with known changes in key genes, the "Phosphatidylinositol signaling network", comprising part of the PI3K pathway, was found deregulated. The downregulated genes in this pathway included several members of the Phospholipase C protein family, and the reduced expression of two of these, PLCD1 and PLCE1, were successfully validated in CRC biopsies (n = 70) and cell lines (n = 19) by quantitative analyses. The repression of both genes was found associated with KRAS mutations (P = 0.005 and 0.006, respectively), and we observed that microsatellite stable carcinomas with reduced PLCD1 expression more frequently had TP53 mutations (P = 0.002). Promoter methylation analyses of PLCD1 and PLCE1 performed in cell lines and tumor biopsies revealed that methylation of PLCD1 can contribute to reduced expression in 40% of the microsatellite instable carcinomas. In conclusion, we have identified significantly deregulated pathways in CRC, and validated repression of PLCD1 and PLCE1 expression. This illustrates that the GSEA approach may guide discovery of novel biomarkers in cancer.

Indexed as

Gene Expression Regulation, EnzymologicTranscriptomeCell Line, TumorColorectal NeoplasmsDNA MethylationGene Expression Regulation, NeoplasticGenes, NeoplasmHumansIsoenzymesMutationPhosphatidylinositolsPhosphoinositide Phospholipase CPhospholipase C deltaPromoter Regions, GeneticReproducibility of ResultsRNA, MessengerIsoenzymesPhosphatidylinositolsPhosphoinositide Phospholipase CPhospholipase C deltaphospholipase C epsilonPLCD1 protein, humanRNA, Messenger

Identifiers

PMID21909432
PMCPMC3164721
OpenAlexW2124359368

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.