Evidence map›Paper›PMID 19734940›Full record

ArticleOncogene2009

Increased proteasome subunit protein expression and proteasome activity in colon cancer relate to an enhanced activation of nuclear factor E2-related factor 2 (Nrf2).

A Arlt, I Bauer, C Schafmayer, J Tepel, S Sebens Müerköster, M Brosch, C Röder, H Kalthoff, J Hampe, M P Moyer and 2 more

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In one paragraph

Article in Oncogene, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 138 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
138citing papers in PubMed, 3 pooled it
4.6field-weighted citation impact, top 5% 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

138 citing papers in PubMed, 3 syntheses or guidelines pooled it, 248 citations in OpenAlex.

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  15. Unique and overlapping roles of NRF2 and NRF1 in transcriptional regulation.Journal of clinical biochemistry and nutrition · 2024
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78 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.

A ArltDepartment of Internal Medicine, University-Hospital Schleswig-Holstein (UKSH)-Campus Kiel, Kiel, Germany.
I Bauer
C Schafmayer
J Tepel
S Sebens Müerköster
M Brosch
C Röder
H Kalthoff
J Hampe
M P Moyer
U R Fölsch
H Schäfer
University Hospital Schleswig-Holstein · DEIncell Corporation (United States) · USUniversity of Lübeck · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An elevated proteasome activity contributes to tumorigenesis, particularly by providing cancer cells with antiapoptotic protection and efficient clearance from irregular proteins. Still, the underlying mechanisms are poorly known. In this study, we report that in colon cancer patients, higher proteasome activity was detected in tumoral tissue compared with surrounding normal tissue, and also that increased levels of proteasomal subunit proteins, such as S5a/PSMD4 and alpha-5/PSMA5, could be detected. Colon tumors showed higher nuclear levels of nuclear factor E2-related factor 2 (Nrf2), a transcription factor supposed to be involved in the control of proteasomal subunit protein expression. The induction or overexpression of Nrf2 led to stronger S5a and alpha-5 expression in the human colon cancer cell lines, Colo320 and Lovo, as well as in NCM460 colonocytes along with higher proteasome activity. The small interfering RNA (siRNA)-mediated Nrf2 knockdown decreased S5a and alpha-5 expression and reduced proteasome activity. Additionally, Nrf2-dependent S5a and alpha-5 expression conferred protection from tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis, an effect preceded by an increased nuclear factor (NF)-kappaB activation and higher expression of antiapoptotic NF-kappaB target genes. These findings point to an important role of Nrf2 in the gain of proteasome activity, thereby contributing to colorectal carcinogenesis. Nrf2 may therefore serve as a potential target in anticancer therapy.

Indexed as

Blotting, WesternCell Line, TumorColorectal NeoplasmsEpithelial CellsHumansImmunohistochemistryNF-E2-Related Factor 2Oxidative StressProteasome Endopeptidase ComplexSignal TransductionUbiquitinationNF-E2-Related Factor 2Proteasome Endopeptidase Complex

Identifiers

PMID19734940
OpenAlexW1973562117

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.