Evidence map›Paper›PMID 18842121›Full record

ArticleBMC cancer2008

Limited clinical relevance of mitochondrial DNA mutation and gene expression analyses in ovarian cancer.

Piotr Bragoszewski, Jolanta Kupryjanczyk, Ewa Bartnik, Andrea Rachinger, Jerzy Ostrowski

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
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  11. PRSS1 Upregulation Predicts Platinum Resistance in Ovarian Cancer Patients.Frontiers in cell and developmental biology · 2020
    Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Expression of mitochondrial genes MT-ND1, MT-ND6, MT-CYB, MT-COI, MT-ATP6, and 12S/MT-RNR1 in colorectal adenopolyps.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
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  19. Mitochondrial DNA instability and metabolic shift in human cancers.International journal of molecular sciences · 2009
    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

5 authors at 2 institutions in 1 country.

Piotr BragoszewskiDepartment of Gastroenterology and Hepatology, Medical Center for Postgraduate Education at the Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Roentgena 5, Warsaw, Poland. pwain@poczta.onet.pl
Jolanta Kupryjanczyk
Ewa Bartnik
Andrea Rachinger
Jerzy Ostrowski
The Maria Sklodowska-Curie National Research Institute of Oncology · PLInstitute of Biochemistry and Biophysics, Polish Academy of Sciences · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn recent years, numerous studies have investigated somatic mutations in mitochondrial DNA in various tumours. The observed high mutation rates might reflect mitochondrial deregulation; consequently, mutation analyses could be clinically relevant. The purpose of this study was to determine if mutations in the mitochondrial D-loop region and/or the level of mitochondrial gene expression could influence the clinical course of human ovarian carcinomas.

methodsWe sequenced a 1320-base-pair DNA fragment of the mitochondrial genome (position 16,000-750) in 54 cancer samples and in 44 corresponding germline control samples. In addition, six transcripts (MT-ATP6, MT-CO1, MT-CYB, MT-ND1, MT-ND6, and MT-RNR1) were quantified in 62 cancer tissues by real-time RT-PCR.

resultsSomatic mutations in the D-loop sequence were found in 57% of ovarian cancers. Univariate analysis showed no association between mitochondrial DNA mutation status or mitochondrial gene expression and any of the examined clinicopathologic parameters. A multivariate logistic regression model revealed that the expression of the mitochondrial gene RNR1 might be used as a predictor of tumour sensitivity to chemotherapy.

conclusionIn contrast to many previously published papers, our study indicates rather limited clinical relevance of mitochondrial molecular analyses in ovarian carcinomas. These discrepancies in the clinical utility of mitochondrial molecular tests in ovarian cancer require additional large, well-designed validation studies.

Indexed as

Gene ExpressionGenes, MitochondrialMutationAnalysis of VarianceAntineoplastic AgentsDNA-Binding ProteinsDNA, MitochondrialFemaleHumansOvarian NeoplasmsReverse Transcriptase Polymerase Chain ReactionSequence Analysis, DNAStatistics, NonparametricAntineoplastic AgentsDNA-Binding ProteinsDNA, Mitochondrial

Identifiers

PMID18842121
PMCPMC2571110
OpenAlexW2102031370

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.