Evidence map›Paper›PMID 33991172›Full record

ArticleJournal of cellular and molecular medicine2021

PP1, PKA and DARPP-32 in breast cancer: A retrospective assessment of protein and mRNA expression.

Behnaz Saidy, Shreeya Kotecha, Anna Butler, Emad A Rakha, Ian O Ellis, Andrew R Green, Stewart G Martin, Sarah J Storr

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.0field-weighted citation impact, top 26% 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

13 citing papers in PubMed, 16 citations in OpenAlex.

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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 1 institution in 1 country.

Behnaz SaidyDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.
Shreeya KotechaDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.
Anna ButlerDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.
Emad A RakhaDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.
Ian O EllisDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.
Andrew R GreenDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.
Stewart G MartinDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.
Sarah J StorrDivision of Cancer and Stem Cells, Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK.ORCID 0000-0002-4103-6048
University of Nottingham · GB

Funding

University of Nottingham
6 · The paper itself

Abstract

Cyclic AMP-dependent protein kinase A (PKA) and protein phosphatase 1 (PP1) are proteins involved in numerous essential signalling pathways that modulate physiological and pathological functions. Both PP1 and PKA can be inhibited by dopamine- and cAMP-regulated phosphoprotein 32 kD (DARPP-32). Using immunohistochemistry, PKA and PP1 expression was determined in a large primary breast tumour cohort to evaluate associations between clinical outcome and clinicopathological criteria (n > 1100). In addition, mRNA expression of PKA and PP1 subunits was assessed in the METABRIC data set (n = 1980). Low protein expression of PKA was significantly associated with adverse survival of breast cancer patients; interestingly, this relationship was stronger in ER-positive breast cancer patients. PP1 protein expression was not associated with patient survival. PKA and PP1 subunit mRNA was also assessed; PPP1CA, PRKACG and PRKAR1B were associated with breast cancer-specific survival. In patients with high expression of DARPP-32, low expression of PP1 was associated with adverse survival when compared to high expression in the same group. PKA expression and PP1 expression are of significant interest in cancer as they are involved in a wide array of cellular processes, and these data indicate PKA and PP1 may play an important role in patient outcome.

Indexed as

Gene Expression Regulation, NeoplasticBiomarkers, TumorBreast NeoplasmsCombined Modality TherapyCyclic AMP-Dependent Protein KinasesDopamine and cAMP-Regulated Phosphoprotein 32FemaleHumansMiddle AgedPhosphorylationPrognosisProtein Phosphatase 1Retrospective StudiesSurvival RateBiomarkers, TumorCyclic AMP-Dependent Protein KinasesDopamine and cAMP-Regulated Phosphoprotein 32Ppp1r1b protein, mouseProtein Phosphatase 1DARPP-32PKAPP-1

Identifiers

PMID33991172
PMCPMC8178272
OpenAlexW3162671174

What OpenQuestion holds

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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.