Evidence map›Paper›PMID 22644305›Full record

ArticleBritish journal of cancer2012

Methylation of the calcium channel regulatory subunit α2δ-3 (CACNA2D3) predicts site-specific relapse in oestrogen receptor-positive primary breast carcinomas.

C Palmieri, B Rudraraju, M Monteverde, L Lattanzio, O Gojis, R Brizio, O Garrone, M Merlano, N Syed, C Lo Nigro and 1 more

Abstract read
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 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  7. Alterations in the CaExploration of targeted anti-tumor therapy · 2021
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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

11 authors.

C PalmieriCancer Research UK Laboratories, Imperial Centre for Translational and Experimental Medicine, Division of Cancer, Imperial College London, Du Cane Road, London W12 0NN, UK. c.palmieri@imperial.ac.uk
B Rudraraju
M Monteverde
L Lattanzio
O Gojis
R Brizio
O Garrone
M Merlano
N Syed
C Lo Nigro
T Crook

Funding

Canadian Institutes of Health Research C42671/A12196Cancer Research UK
6 · The paper itself

Abstract

backgroundCalcium is an important intracellular messenger that mediates many biological processes that are relevant to the malignant process. Calcium ion channels are key in controlling the intracellular calcium, and little is known about their role in human cancer.

methodsWe used qPCR and pyrosequencing to investigate expression and epigenetic regulation of the calcium channel regulatory subunit α(2)δ-3 (CACNA2D3) in breast cancer cell lines, primary cancers and metastatic lesions.

resultsExpression of CACNA2D3 mRNA is regulated in breast cancer cell lines by methylation in the CpG island located in the 5' regulatory region of the gene. Expression is upregulated by azacytidine (AZA) in cells with CpG island methylation but unaffected in cells lacking methylation. In primary breast carcinomas, methylation is more common in cancers, which subsequently relapse with loco-regional and, particularly, visceral metastatic disease in both oestrogen receptor-α (ER)-positive and -negative cases. Furthermore, CACNA2D3 CpG island is frequently methylated in breast cancer that has metastasised to the central nervous system.

conclusionMethylation-dependent transcriptional silencing of CACNA2D3 may contribute to the metastatic phenotype of breast cancer. Analysis of methylation in the CACNA2D3 CpG island may have potential as a biomarker for risk of development of metastatic disease.

Indexed as

DNA MethylationBreast NeoplasmsCalciumCalcium ChannelsCell Line, TumorCpG IslandsFemaleHumansMCF-7 CellsNeoplasm MetastasisNeoplasm Recurrence, LocalReceptors, EstrogenRegulatory Sequences, Nucleic AcidRNA, MessengerCACNA2D3 protein, humanCalciumCalcium ChannelsReceptors, EstrogenRNA, Messenger

Identifiers

PMID22644305
PMCPMC3394973

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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.