Evidence map›Paper›PMID 24442641›Full record

ArticleCarcinogenesis2014

Mutational patterns in the breast cancer mitochondrial genome, with clinical correlates.

Sarah McMahon, Thomas LaFramboise

Open access · bronzeAbstract read
In one paragraph

Article in Carcinogenesis, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

41 citing papers in PubMed, 69 citations in OpenAlex.

  1. Review
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  11. Mitochondrial dysfunction, UPRCell & bioscience · 2021
    Review
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  16. Article
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  19. Article
  20. Mitohormesis, UPRCancer research · 2019
    Review
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

2 authors at 1 institution in 1 country.

Sarah McMahonDepartment of Genetics and Genome Sciences, Case Western Reserve University School of Medicine and.
Thomas LaFramboise
Case Western Reserve University · US

Funding

A genomic survey of allele-specific selection in tumor ampliconsR01CA131341 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI LAFRAMBOISE, THOMAS LOUIS, PE'ER, ITSHACK G · 2008 to 2011
$1.2M
NCI NIH HHS R01 CA131341
6 · The paper itself

Abstract

The presence of mitochondrial DNA (mtDNA) mutations in human cancer has long been recognized, but their functional significance has remained obscure. Debate persists as to whether the mutations help drive the tumor, or are bystander events. Here, we analyze next-generation mtDNA sequence data from 99 breast cancer patients. High depth coverage enables detection of even low-level heteroplasmic variants, and data from matched normal tissue allow us to distinguish between shifts in heteroplasmy and acquired mutations. Somatic mtDNA mutations are found in 73 (73.7%) of patient tumors, and dramatic shifts from the initial germline allele proportions are observed for many heteroplasmies. Clustering of somatic mutations in promoter and replication regions, and also in genes coding for electron transport chain complex I, suggest selection for mutations affecting critical mitochondrial processes. Furthermore, statistical tests for Darwinian selection reveal evidence for positive and relaxed negative selection for somatic missense mutations. We also observe a dramatic decrease in per-cell mtDNA content in tumor tissues, as well as a surprising positive correlation between somatic mtDNA mutational burden and patient survival. Taken together, our results support the view that somatic mtDNA mutations are not solely bystander events, but have significance in cancer from both biological and clinical perspectives. We also anticipate that the catalog of heteroplasmies and somatic mutations presented here will serve as a reference for future studies of cancer mitochondrial genomes.

Indexed as

Genome, MitochondrialMutationAdultAgedAged, 80 and overBreast NeoplasmsCell Transformation, NeoplasticDNA, MitochondrialFemaleGene DosageGenome-Wide Association StudyGenomicsGerm-Line MutationHigh-Throughput Nucleotide SequencingHumansMiddle AgedDNA, MitochondrialRNA, Transfer

Identifiers

PMID24442641
PMCPMC4004206
OpenAlexW2099068165

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.