Evidence map›Paper›PMID 27515002›Full record

ArticleExperimental cell research2016

Nuclear respiratory factor-1 and bioenergetics in tamoxifen-resistant breast cancer cells.

Brandie N Radde, Margarita M Ivanova, Huy Xuan Mai, Negin Alizadeh-Rad, Kellianne Piell, Patrick Van Hoose, Marsha P Cole, Penn Muluhngwi, Ted S Kalbfleisch, Eric C Rouchka and 2 more

Abstract read
In one paragraph

Article in Experimental cell research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
–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

27 citing papers in PubMed.

  1. Trial
  2. Article
  3. Regulation of PSAT1 and PHGDH by m6A in endocrine-resistant breast cancer cells.Biochimica et biophysica acta. Molecular basis of disease · 2026
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  18. Role of the mitochondrial stress response in human cancer progression.Experimental biology and medicine (Maywood, N.J.) · 2020
    Review
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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

12 authors.

Brandie N RaddeDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Margarita M IvanovaDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Huy Xuan MaiDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Negin Alizadeh-RadDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Kellianne PiellDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Patrick Van HooseDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Marsha P ColeDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Penn MuluhngwiDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Ted S KalbfleischDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Eric C RouchkaBioinformatics and Biomedical Computing Laboratory, Department of Computer Engineering and Computer Science, University of Louisville, Louisville, KY 40292, USA.
Bradford G HillDepartment of Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA.
Carolyn M KlingeDepartment of Biochemistry & Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA. Electronic address: carolyn.klinge@louisville.edu.

Funding

WKU Lead Faculty AwardP20GM103436 · NIGMS · UNIVERSITY OF LOUISVILLE · PI ERIC C ROUCHKA · 2012 to 2026
$60.1M
DNA SEQUENCES IMPACT ESTROGEN AND ANTIESTROGEN ACTIVITYR01DK053220 · NIDDK · UNIVERSITY OF LOUISVILLE · PI KLINGE, CAROLYN M. · 1998 to 2011
$2.8M
Summer Endocrine Research Training ProgramT35DK072923 · NIDDK · UNIVERSITY OF LOUISVILLE · PI KLINGE, CAROLYN M. · 2006 to 2025
$719k
NIDDK NIH HHS R01 DK053220NIDDK NIH HHS T35 DK072923NIGMS NIH HHS P20 GM103436
6 · The paper itself

Abstract

Acquired tamoxifen (TAM) resistance is a significant clinical problem in treating patients with estrogen receptor α (ERα)+ breast cancer. We reported that ERα increases nuclear respiratory factor-1 (NRF-1), which regulates nuclear-encoded mitochondrial gene transcription, in MCF-7 breast cancer cells and NRF-1 knockdown stimulates apoptosis. Whether NRF-1 and target gene expression is altered in endocrine resistant breast cancer cells is unknown. We measured NRF-1and metabolic features in a cell model of progressive TAM-resistance. NRF-1 and its target mitochondrial transcription factor A (TFAM) were higher in TAM-resistant LCC2 and LCC9 cells than TAM-sensitive MCF-7 cells. Using extracellular flux assays we observed that LCC1, LCC2, and LCC9 cells showed similar oxygen consumption rate (OCR), but lower mitochondrial reserve capacity which was correlated with lower Succinate Dehydrogenase Complex, Subunit B in LCC1 and LCC2 cells. Complex III activity was lower in LCC9 than MCF-7 cells. LCC1, LCC2, and LCC9 cells had higher basal extracellular acidification (ECAR), indicating higher aerobic glycolysis, relative to MCF-7 cells. Mitochondrial bioenergetic responses to estradiol and 4-hydroxytamoxifen were reduced in the endocrine-resistant cells compared to MCF-7 cells. These results suggest the acquisition of altered metabolic phenotypes in response to long term antiestrogen treatment may increase vulnerability to metabolic stress.

Indexed as

Energy MetabolismBreast NeoplasmsCell Line, TumorCell RespirationDNA-Binding ProteinsDNA, MitochondrialDrug Resistance, NeoplasmElectron Transport Complex IIIEstradiolFemaleGene Expression Regulation, NeoplasticGene OntologyHumansMitochondriaMitochondrial ProteinsNuclear Respiratory Factor 1afimoxifeneDNA-Binding ProteinsDNA, MitochondrialElectron Transport Complex IIIEstradiolMitochondrial ProteinsNuclear Respiratory Factor 1Protein SubunitsRNA, MessengerTamoxifenTFAM protein, humanTranscription FactorsBreast cancerMitochondrial oxidative phosphorylationNRF-1Tamoxifen-resistance

Identifiers

PMID27515002
PMCPMC5011039

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Registered trials

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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.