Evidence map›Paper›PMID 22108517›Full record

ArticleBritish journal of cancer2012

Elevated mRNA expression of CHAC1 splicing variants is associated with poor outcome for breast and ovarian cancer patients.

G Goebel, R Berger, A M Strasak, D Egle, E Müller-Holzner, S Schmidt, J Rainer, E Presul, W Parson, S Lang and 3 more

Open access · hybridAbstract readValidation Study
In one paragraph

Article in British journal of cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

45 citing papers in PubMed, 73 citations in OpenAlex.

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  11. High levels of unfolded protein response component CHAC1 associates with cancer progression signatures in malignant breast cancer tissues.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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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

13 authors at 2 institutions in 2 countries.

G GoebelDepartment of Medical Statistics, Informatics and Health Economics, Innsbruck Medical University, Innsbruck A-6020, Austria.
R Berger
A M Strasak
D Egle
E Müller-Holzner
S Schmidt
J Rainer
E Presul
W Parson
S Lang
A Jones
M Widschwendter
H Fiegl
Innsbruck Medical University · ATUniversity College London · GB

Funding

Austrian Science Fund FWF V 33Department of Health
6 · The paper itself

Abstract

backgroundThe role of CHAC1 (cation transport regulator-like protein 1), a recently identified component of the unfolded protein response (UPR) pathway, in gynaecological cancers has not yet been characterised. Now, this work illustrates CHAC1 mRNA expression and associated clinical outcome in breast and ovarian cancer.

methodsThe prognostic value of CHAC1 and its two transcript variants was investigated in 116 breast and 133 ovarian tissues using quantitative real-time reverse-transcriptase PCR. Subsequently, we conducted functional studies using short-interfering RNA-mediated knockdown and plasmid-mediated overexpression of CHAC1 in breast and ovarian cancer cells.

resultsPoorly differentiated tumours exhibited higher CHAC1 mRNA expression (breast cancer: P=0.004; ovarian cancer: P=0.024). Hormone receptor-negative breast tumours and advanced-staged ovarian cancers demonstrated elevated CHAC1 mRNA expression levels (P<0.001 and P=0.026, respectively). The multivariate survival analysis showed a prognostic value of both transcript variants in breast cancer (transcript variant 1: RR(death) 6.7 (2.4-18.9); P<0.001), RR(relapse) 6.7 (2.1-21.3); P=0.001); (transcript variant 2: RR(death) 4.9 (2.0-12.4); P<0.001), RR(relapse) 8.0 (2.4-26.8); P<0.001). Ovarian cancer patients aged younger than 62.6 years with high CHAC1 mRNA expression showed poorer relapse-free- and overall-survival (P=0.030 and P=0.012, respectively). In functional studies CHAC1 knockdown suppressed cell migration, whereas ectopic overexpression opposed these effects.

conclusionHigh CHAC1 mRNA expression could be an independent indicator for elevated risk of cancer recurrence in breast and ovarian cancer.

Indexed as

RNA SplicingAdultAgedAged, 80 and overBase SequenceBlotting, WesternBreast NeoplasmsCation Transport ProteinsCell Line, TumorDNA PrimersFemaleGene Knockdown TechniquesHumansMiddle AgedOvarian NeoplasmsRNA, MessengerCation Transport ProteinsDNA PrimersRNA, Messenger

Identifiers

PMID22108517
PMCPMC3251857
OpenAlexW2028398147

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.