Evidence map›Paper›PMID 22899999›Full record

ArticlePloS one2012

Role of KCNMA1 in breast cancer.

Martin Oeggerli, Yuemin Tian, Christian Ruiz, Barbara Wijker, Guido Sauter, Ellen Obermann, Uwe Güth, Inti Zlobec, Matthias Sausbier, Karl Kunzelmann and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

68 citing papers in PubMed, 105 citations in OpenAlex.

  1. Article
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  8. mitoBKeLife · 2024
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  13. Ion Channels and Personalized Medicine in Gynecological Cancers.Pharmaceuticals (Basel, Switzerland) · 2023
    Review
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  15. [Peripheral bloodNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2023
    Article
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8 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

11 authors at 6 institutions in 2 countries.

Martin OeggerliInstitute of Pathology, University of Basel, Basel, Switzerland. oeggerlim@uhbs.ch
Yuemin Tian
Christian Ruiz
Barbara Wijker
Guido Sauter
Ellen Obermann
Uwe Güth
Inti Zlobec
Matthias Sausbier
Karl Kunzelmann
Lukas Bubendorf
University of Basel · CHUniversity of Regensburg · DEUniversität Hamburg · DEUniversity Hospital of Basel · CHUniversity of Bern · CHUniversity of Tübingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

KCNMA1 encodes the α-subunit of the large conductance, voltage and Ca(2+)-activated (BK) potassium channel and has been reported as a target gene of genomic amplification at 10q22 in prostate cancer. To investigate the prevalence of the amplification in other human cancers, the copy number of KCNMA1 was analyzed by fluorescence-in-situ-hybridization (FISH) in 2,445 tumors across 118 different tumor types. Amplification of KCNMA1 was restricted to a small but distinct fraction of breast, ovarian and endometrial cancer with the highest prevalence in invasive ductal breast cancers and serous carcinoma of ovary and endometrium (3-7%). We performed an extensive analysis on breast cancer tissue microarrays (TMA) of 1,200 tumors linked to prognosis. KCNMA1 amplification was significantly associated with high tumor stage, high grade, high tumor cell proliferation, and poor prognosis. Immunofluorescence revealed moderate or strong KCNMA1 protein expression in 8 out of 9 human breast cancers and in the breast cancer cell line MFM223. KCNMA1-function in breast cancer cell lines was confirmed by whole-cell patch clamp recordings and proliferation assays, using siRNA-knockdown, BK channel activators such as 17ß-estradiol and the BK-channel blocker paxilline. Our findings revealed that enhanced expression of KCNMA1 correlates with and contributes to high proliferation rate and malignancy of breast cancer.

Indexed as

AdultAgedAged, 80 and overBreast NeoplasmsCell Line, TumorCell ProliferationEstrogen Receptor alphaFemaleGene AmplificationGene Expression Regulation, NeoplasticHumansIn Situ Hybridization, FluorescenceKi-67 AntigenLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsMaleMCF-7 CellsEstrogen Receptor alphaKCNMA1 protein, humanKi-67 AntigenLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsReceptors, Progesterone

Identifiers

PMID22899999
PMCPMC3416802
OpenAlexW1965651809

What OpenQuestion holds

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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.