Evidence map›Paper›PMID 22777349›Full record

ArticleOncogene2013

PGC-1β mediates adaptive chemoresistance associated with mitochondrial DNA mutations.

Z Yao, A W E Jones, E Fassone, M G Sweeney, M Lebiedzinska, J M Suski, M R Wieckowski, N Tajeddine, I P Hargreaves, T Yasukawa and 5 more

Open access · bronzeAbstract read
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In one paragraph

Article in Oncogene, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  9. TheGenes · 2018
    Review
  10. Mitochondrial Heterogeneity.Frontiers in genetics · 2018
    Review
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  12. Article
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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

15 authors at 5 institutions in 4 countries.

Z YaoDepartment of Cell and Developmental Biology, Consortium for Mitochondrial Research, University College London, London, UK.
A W E Jones
E Fassone
M G Sweeney
M Lebiedzinska
J M Suski
M R Wieckowski
N Tajeddine
I P Hargreaves
T Yasukawa
G Tufo
C Brenner
G Kroemer
S Rahman
G Szabadkai
University College London · GBInserm · FRInstytut Biologii Doświadczalnej im. Marcelego Nenckiego · PLDélégation Paris 5 · FRNational Hospital for Neurology and Neurosurgery · GB

Funding

Medical Research CouncilParkinson's UK G-0905
6 · The paper itself

Abstract

Primary mitochondrial dysfunction commonly leads to failure in cellular adaptation to stress. Paradoxically, however, nonsynonymous mutations of mitochondrial DNA (mtDNA) are frequently found in cancer cells and may have a causal role in the development of resistance to genotoxic stress induced by common chemotherapeutic agents, such as cis-diammine-dichloroplatinum(II) (cisplatin, CDDP). Little is known about how these mutations arise and the associated mechanisms leading to chemoresistance. Here, we show that the development of adaptive chemoresistance in the A549 non-small-cell lung cancer cell line to CDDP is associated with the hetero- to homoplasmic shift of a nonsynonymous mutation in MT-ND2, encoding the mitochondrial Complex-I subunit ND2. The mutation resulted in a 50% reduction of the NADH:ubiquinone oxidoreductase activity of the complex, which was compensated by increased biogenesis of respiratory chain complexes. The compensatory mitochondrial biogenesis was most likely mediated by the nuclear co-activators peroxisome proliferator-activated receptor gamma co-activator-1α (PGC-1α) and PGC-1β, both of which were significantly upregulated in the CDDP-resistant cells. Importantly, both transient and stable silencing of PGC-1β re-established the sensitivity of these cells to CDDP-induced apoptosis. Remarkably, the PGC-1β-mediated CDDP resistance was independent of the mitochondrial effects of the co-activator. Altogether, our results suggest that partial respiratory chain defects because of mtDNA mutations can lead to compensatory upregulation of nuclear transcriptional co-regulators, in turn mediating resistance to genotoxic stress.

Indexed as

DNA, MitochondrialMutationAdaptation, PhysiologicalCarcinoma, Non-Small-Cell LungCarrier ProteinsCell Line, TumorCisplatinDrug Resistance, NeoplasmHeat-Shock ProteinsHumansLung NeoplasmsNADH DehydrogenasePeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaRNA-Binding ProteinsTranscription FactorsCarrier ProteinsCisplatinDNA, MitochondrialHeat-Shock ProteinsNADH DehydrogenaseNADH dehydrogenase subunit 2, humanPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPPARGC1A protein, humanPPARGC1B protein, humanRNA-Binding ProteinsTranscription Factors

Identifiers

PMID22777349
OpenAlexW1979246886

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.